CN110141255A - Hemostix - Google Patents
Hemostix Download PDFInfo
- Publication number
- CN110141255A CN110141255A CN201910531987.2A CN201910531987A CN110141255A CN 110141255 A CN110141255 A CN 110141255A CN 201910531987 A CN201910531987 A CN 201910531987A CN 110141255 A CN110141255 A CN 110141255A
- Authority
- CN
- China
- Prior art keywords
- blood
- needle
- conduit
- connecting tube
- catheter block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000004369 blood Anatomy 0.000 claims abstract description 188
- 239000008280 blood Substances 0.000 claims abstract description 188
- 238000010241 blood sampling Methods 0.000 claims abstract description 59
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 21
- 238000012360 testing method Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 25
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 6
- 229960002897 heparin Drugs 0.000 description 6
- 229920000669 heparin Polymers 0.000 description 6
- 208000032843 Hemorrhage Diseases 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000003146 anticoagulant agent Substances 0.000 description 4
- 229940127219 anticoagulant drug Drugs 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000002560 therapeutic procedure Methods 0.000 description 4
- 230000002792 vascular Effects 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 3
- 238000009534 blood test Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241001416181 Axis axis Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of hemostix, comprising: catheter block, interior to be equipped with accommodating cavity, one end of the accommodating cavity, which is installed with, can accommodate the conduit for puncturing needle tubing, and the hardness of the conduit is less than the hardness for puncturing needle tubing, and the conduit is connected to the accommodating cavity；The needle tubing that punctures has the second state that cutting tip stretches out the first state of the conduit and cutting tip bounces back towards the catheter block and separates with the catheter block；Blood sampling structure, including collection blood needle；Connecting tube connects the catheter block and the blood sampling structure, and is connected to the accommodating cavity and the collection blood needle；The hardness of the connecting tube is not less than the hardness of the catheter block.Hemostix provided by the invention can not only reduce the pain of person to be taken a blood sample in blood collection procedure, but also can be in order to the progress for operation of taking a blood sample, while can also improve the accuracy of liquid testing result.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of hemostix.
Background technique
Traditional hemostix generally includes blood taking needle and holds, and the blood taking needle being connected to is held with blood taking needle, and blood taking needle is generally steel
Needle.In blood collection procedure, sometimes due to being inserted repeatedly when the person of blood sampling mismatches or multitube blood sampling causes and replaces vacuum blood collection tube
It pulls out, moves position of the steel needle in person's blood vessel to be taken a blood sample, steel needle is caused to puncture blood vessel, blood sampling is interrupted.
A kind of existing blood-taking device, including needle tube retraction type venous detaining needle, needle tube retraction type venous detaining needle have needle
Handle, venipuncture needle and the hose being set in outside puncture needle, puncture needle are steel needle, and needle handle is connected with connecting tube, and connecting tube is opposite
It is equipped with calparine cap interface in the other end of needle handle, calparine cap interface is connected with rubber plug collection blood needle.It is carried out needing to treat blood sampling person
When blood sampling, the hose for making puncture needle and being set in outside puncture needle is punctured together into person's blood vessel to be taken a blood sample, then, by hose indwelling
In the blood vessel of person to be taken a blood sample, puncture needle is made to bounce back, leave person's blood vessel to be taken a blood sample, later, by vacuum blood collection tube and rubber plug collection blood
Needle connection, blood in person's blood vessel to be taken a blood sample will under the suction function of vacuum blood collection tube by hose and rubber plug collection blood needle into
Enter into vacuum blood collection tube, completes blood sampling.This blood-taking device, since in blood collection procedure, puncture needle has been retracted away from wait adopt
Blood person's blood vessel, only hose stay in person's blood vessel to be taken a blood sample, can to avoid in blood collection procedure due to person to be taken a blood sample movement or multitube
It is plugged repeatedly when blood sampling replacement vacuum blood collection tube, caused person's blood vessel to be taken a blood sample is punctured needle and punctures, and brings pain to person to be taken a blood sample
Hardship causes blood sampling to be interrupted.
Between rubber plug collection blood needle and venipuncture needle connected by connecting tube but in above-mentioned technology, connecting tube be compared with
Long hose, this, which will will lead in connecting tube, larger amount of air is stored before blood sampling, in blood sampling, store up in connecting tube
The large quantity of air deposited can enter under the suction function of vacuum blood collection tube and occupy certain volume in vacuum blood collection tube, so that very
The biggish dead space of volume is formed in empty heparin tube, causes to influence blood testing sample, so that the accuracy of testing result is poor, and
If by the too short of connecting tube setting, and will lead to when gripping needle handle is treated blood sampling person with venipuncture needle and punctured, with
The rubber plug collection blood needle that venipuncture needle is connected by connecting tube easily causes to interfere to puncture procedure, to bring not to blood sampling operation
Just.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome the hemostix in the prior art with inlying catheter or
The blood test results accuracy that person obtains is poor or the unhandy defect of blood sampling, takes to provide one kind and can be improved
The accuracy of the blood test results obtained is convenient for the hemostix of blood sampling operation simultaneously.
The present invention provides a kind of hemostix, comprising:
Catheter block, interior to be equipped with accommodating cavity, one end of the accommodating cavity, which is installed with, can accommodate the conduit for puncturing needle tubing, described
The hardness of conduit is less than the hardness for puncturing needle tubing, and the conduit is connected to the accommodating cavity；The puncture needle tubing, which has, to be worn
Barbed end stretches out the first state of the conduit and cutting tip bounces back towards the catheter block and separates with the catheter block second
State；
Blood sampling structure, including collection blood needle；
Connecting tube connects the catheter block and the blood sampling structure, and is connected to the accommodating cavity and the collection blood needle；It is described
The hardness of connecting tube is not less than the hardness of the catheter block.
The blood sampling structure further includes that blood taking needle is held, and the blood taking needle holds one end and is fixedly connected with the collection blood needle, another
End is equipped with the opening for being adapted for insertion into storage blood device.
The hardness of the connecting tube is not less than the hardness that the blood taking needle is held.
The length of the connecting tube is not more than the outer diameter that the blood taking needle is held.
Described connecting tube one end is held with the blood taking needle to be detachably connected, and the other end is detachably connected with the catheter block.
The blood taking needle, which is held, to be cylindrical in shape.
The axis that the blood taking needle is held is parallel with the axis of the conduit.
The connecting tube is at an acute angle with the axis of the conduit and straight to the inclined inclination in the direction far from the conduit
Pipe.
The conduit is elastic tube.
The peripheral wall of the conduit is equipped at least one through-hole being connected to the lumen of the conduit.
The conduit is equipped with the blood sampling mouth for being suitable for being pierced by for the puncture needle tubing far from one end of the catheter block, described logical
Hole is arranged on the peripheral wall of the conduit close to the blood sampling mouth.
Further include:
The accommodating cavity is separated into first chamber and second chamber by batching pig, the conduit, the connecting tube respectively with
The first chamber connection；
Needle stand is set in the second chamber towards one end of the conduit, and the non-piercing end with the puncture needle tubing
It is fixedly connected；The needle stand is suitable for that the puncture needle tubing is driven to move back and forth under the effect of external force, so that the puncture needle tubing
Switch between the first state and second state.
It further include the needle handle being fixedly connected with the needle stand.
The needle stand is to stretch and sets end towards one end of the conduit, and described stretch sets end and be rotatably arranged in the second chamber
In, described stretch is set equipped with locking structure between end and the cavity wall of the second chamber, and the locking structure is suitable for setting described stretch
It holds and is locked relative to the position after second chamber rotation.
The locking structure includes:
Multiple card slots set the periphery wall at end and both the cavity wall of the second chamber on one of them set on described stretch, and
It is stretched described in and sets end or the circumferential direction of the second chamber is uniformly distributed；
At least one fixture block, set on it is described stretch set end periphery wall and the second chamber both cavity walls it is wherein another
On, the fixture block is suitable for being caught in corresponding card slot during needle stand is rotated relative to catheter block to the position after rotation
It is locked.
Technical solution of the present invention has the advantages that
1. hemostix provided by the invention, comprising: catheter block, interior to be equipped with accommodating cavity, one end of the accommodating cavity is fixed
The conduit for puncturing needle tubing can be accommodated by having, and the hardness of the conduit is less than the hardness for puncturing needle tubing, the conduit and the appearance
Set chamber connection；It is described to puncture the first state and cutting tip that there is needle tubing cutting tip to stretch out the conduit towards the catheter block
The second state for bouncing back and being separated with the catheter block；Blood sampling structure, including collection blood needle；Connecting tube, connect the catheter block with
The blood sampling structure, and it is connected to the accommodating cavity and the collection blood needle；The hardness of the connecting tube is not less than the catheter block
Hardness.In blood sampling, it will first puncture needle tubing and conduit and punctured together into person's blood vessel to be taken a blood sample, then, make to puncture needle tubing guide
The direction of tube socket bounces back, until separating with catheter block, and by catheter retaining in the blood vessel of person to be taken a blood sample, later, by vacuum blood collection
Pipe etc. stores up blood device and connect with collection blood needle, and the blood in person's blood vessel to be taken a blood sample will pass through conduit sum aggregate blood under the action of negative pressure
Needle enters in storage blood device, completes blood sampling.Person's blood vessel to be taken a blood sample has been had been moved off due to after completing to puncture, puncturing needle tubing,
The conduit that only hardness is less than puncture needle tubing hardness stays in person's blood vessel to be taken a blood sample, and storage blood can be flowed to avoid person's blood to be taken a blood sample
It is caused wait take a blood sample due to being plugged repeatedly when the movement of the person of blood sampling or multitube blood sampling replacement vacuum blood collection tube during device
Person's blood vessel is punctured needle tubing and punctures, it is possible to reduce the pain of person to be taken a blood sample guarantees going on smoothly for blood collection procedure.Meanwhile passing through
So that the hardness of connecting tube is not less than the hardness of catheter block, connecting tube can be made short enough, when blood was collected, due to connecting tube
Hardness is greater than or equal to the hardness of catheter block, so treating the process that blood sampling person is punctured by puncture needle tubing and conduit
In, connecting tube is not susceptible to be bent and swing, so that the collection blood needle being connect with catheter block by connecting tube will not be relative to conduit
Seat arbitrarily swings or shakes, but a more stable state can be in relative to catheter block, and wearing with puncture needle tubing
Thorn movement moves together, to will not cause to interfere to the puncture procedure for puncturing needle tubing and conduit, can be convenient for entire
Blood collection procedure；Simultaneously as the hardness of connecting tube is not less than the hardness of catheter block, connecting tube can be made short enough, so, relatively
In long tube, the air capacity of storage can be greatly reduced, so that entering the air in vacuum blood collection tube in blood collection procedure
Amount greatly reduces, so that the volume of dead space greatly reduces, and then can reduce dead space to (especially APTT pairs of blood testing sample
In hemorrhage because screening and heparin anticoagulant therapy monitoring blood testing sample collected) influence, improve blood testing
As a result accuracy.
2. hemostix provided by the invention, the hardness of the connecting tube is not less than the hardness that the blood taking needle is held.In this way may be used
So that connecting tube is also not susceptible to be bent and swing when collecting blood needle and being connected with blood taking needle and hold, fully ensure that blood sampling structure with
The connective stability of catheter block, so that blood sampling structure is also not easy in the puncture for puncturing needle tubing in the case where connecting tube is short enough
It is moved in the process with respect to catheter block.
3. hemostix provided by the invention, the length of the connecting tube is not more than the outer diameter that the blood taking needle is held.It is such
Connecting tube is shorter, relative to long tube, can greatly reduce the air capacity of storage, so that entering vacuum in blood collection procedure
Air capacity in heparin tube greatly reduces, so that the volume of dead space greatly reduces, and then can reduce dead space to blood testing sample
This (especially APTT for hemorrhage because screening and heparin anticoagulant therapy monitoring blood testing sample collected) shadow
It rings.
4. hemostix provided by the invention, the axis that the blood taking needle is held is parallel with the axis of the conduit.It in this way can be with
By vacuum blood collection tube etc. storage blood device and blood taking needle hold carry out plug connection when, prevent vacuum blood collection tube etc. storage blood device apply
Lead to conduit lateral deviation damage blood vessel to the power that blood taking needle is held while influencing blood flow.
5. hemostix provided by the invention, the connecting tube is at an acute angle with the axis of the conduit and to far from described
The inclined inclination straight tube in the direction of conduit.It can make to flow during blood is by conduit flow direction collection blood needle when blood sampling so more suitable
Freely, while it can reduce and melt blood probability, guarantee the quality of blood sample.
6. hemostix provided by the invention, the peripheral wall of the conduit is equipped at least one and is connected to the lumen of the conduit
Through-hole.Due in blood collection procedure, it is difficult to conduit and the close situation of vascular wall are avoided the occurrence of, so as to cause will be wait take a blood sample
During person's blood drainage to storage blood device, being also easy to produce and inhale wall phenomenon, i.e., the pin hole at needle point is easily contacted with vascular wall actuation,
Cause the blood in blood vessel can not be successfully to enter in conduit by pin hole；The present invention on the peripheral wall of conduit by being equipped at least
One through-hole being connected to the lumen of conduit, can be when the pin hole at needle point generates and inhales wall phenomenon, and through-hole can make conduit pressure release,
It avoids generating and inhales wall phenomenon, so as to ensure going on smoothly for blood sampling.
7. hemostix provided by the invention, the needle stand is to stretch to set end towards one end of the conduit, it is described stretch set end can
It is rotatably arranged in the second chamber, described stretch is set equipped with locking structure between end and the cavity wall of the second chamber, described
Locking structure be suitable for it is described stretch set end relative to the second chamber rotation after position lock.It in this way can be according to wearing
Angle where thorn and the axis for needing to adjust needle handle place plane and connecting tube of blood sampling between plane, and to the angle after adjusting
Degree is locked, so as to so that the angle of plane where the axis of plane and connecting tube where needle handle maintains and is convenient for wearing
The angle of thorn and blood sampling, consequently facilitating carrying out puncture procedure and blood sampling operation.
8. hemostix provided by the invention, the locking structure includes: multiple card slots, sets the periphery wall at end set on described stretch
With both cavity walls of the second chamber on one of them, and along it is described stretch set end or the second chamber it is circumferential uniformly point
Cloth；At least one fixture block, set on it is described stretch set end periphery wall and the second chamber both cavity walls it is wherein another on, it is described
Fixture block is suitable for being caught in corresponding card slot during needle stand is rotated relative to catheter block to lock the position after rotation
It is fixed.The locking structure of this structure type need to only be such that needle stand rotates relative to catheter block, can realize to plane where needle handle
Angular adjustment with where the axis of connecting tube between plane, can realize the lock to the angle after fixture block is caught in card slot
It is fixed, it is easy to operate, and have the advantages of simple structure and easy realization.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the three-dimensional assembling schematic diagram of the hemostix provided in the first embodiment of the invention；
Fig. 2 is the perspective exploded view of hemostix shown in FIG. 1；
Fig. 3 is the stereoscopic schematic diagram of the blood sampling structure in hemostix shown in FIG. 1；
Fig. 4 is the perspective exploded view of the part-structure of hemostix shown in FIG. 1；
Description of symbols:
1- catheter block, 11- second chamber, 12- card slot, 2- connecting tube, 3- puncture needle tubing, 4- conduit, 41- blood sampling mouth, 42-
Through-hole, 5- collection blood needle, 6- blood taking needle are held, and 61- opening, 7- batching pig, 8- needle stand, 81-, which stretches, sets end, 82- fixture block, 9- needle handle.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
As Figure 1-Figure 4, the present embodiment provides a kind of hemostixes, including catheter block 1, blood sampling structure and connecting tube 2.
Accommodating cavity is equipped in catheter block 1, one end of accommodating cavity, which is installed with, can accommodate the conduit 4 for puncturing needle tubing 3, conduit 4
Hardness is less than the hardness for puncturing needle tubing 3, and conduit 4 is equipped with the blood sampling mouth for being suitable for being pierced by for puncturing needle tubing 3 far from one end of catheter block 1
41, conduit 4 is connected to accommodating cavity；The first state and cutting tip that there is needle tubing 3 cutting tip to stretch out conduit 4 are punctured towards conduit
The second state that seat 1 bounces back and separates with catheter block 1.
Blood sampling structure includes that collection blood needle 5 and blood taking needle hold 6.
2 connecting conduit seat 1 of connecting tube holds 6 with blood taking needle, and is connected to accommodating cavity and collection blood needle 5；The hardness of connecting tube 2 is not small
In the hardness of catheter block 1.
In blood sampling, it will first puncture needle tubing 3 and conduit 4 and punctured together into person's blood vessel to be taken a blood sample, then, make to puncture needle tubing
3 bounce back to the direction of catheter block 1, until separating with catheter block 1, and conduit 4 are retained in the blood vessel of person to be taken a blood sample, later, will
Vacuum blood collection tube etc. stores up blood device and connect with collection blood needle 5, and the blood in person's blood vessel to be taken a blood sample will pass through under the action of negative pressure
4 sum aggregate blood needle 5 of conduit enters in storage blood device, completes blood sampling.It is had been moved off due to after completing to puncture, puncturing needle tubing 3
The conduit 4 that person's blood vessel to be taken a blood sample, only hardness are less than puncture 3 hardness of needle tubing stays in person's blood vessel to be taken a blood sample, can be to avoid wait adopt
Blood person's blood flow direction storage blood device during due to wait the movement of the person of blood sampling or multitube blood sampling replacement vacuum blood collection tube when repeatedly
Plug, caused person's blood vessel to be taken a blood sample are punctured needle tubing 3 and puncture, it is possible to reduce the pain of person to be taken a blood sample guarantees blood collection procedure
It goes on smoothly.
Meanwhile by make connecting tube 2 hardness be not less than catheter block 1 hardness, connecting tube 2 can be made short enough, into
When row blood sampling, since the hardness of connecting tube 2 is more than or equal to the hardness of catheter block 1, so right by puncturing needle tubing 3 and conduit 4
During person to be taken a blood sample punctures, connecting tube 2 is not susceptible to be bent and swing, so that being connected with catheter block 1 by connecting tube 2
The collection blood needle 5 connect arbitrarily will not swing or shake relative to catheter block 1, but it is steady to be in a comparison relative to catheter block 1
Fixed state, and as the puncture movement for puncturing needle tubing 3 moves together, to will not be grasped to the puncture for puncturing needle tubing 3 and conduit 4
It causes to interfere, entire blood collection procedure can be convenient for；Simultaneously as the hardness of connecting tube 2 is hard not less than catheter block 1
Degree, can make connecting tube 2 short enough, so, relative to long tube, the air capacity of storage can be greatly reduced, so that adopting
The air capacity entered in vacuum blood collection tube during blood greatly reduces, so that the volume of dead space greatly reduces, and then can drop
Low dead space to blood testing sample (especially APTT for hemorrhage because screening and heparin anticoagulant therapy monitoring it is collected
Blood testing sample) influence, improve the accuracy of blood test results.
Blood taking needle holds 6 one end and is fixedly connected with collection blood needle 5, and the other end is equipped with the opening 61 for being adapted for insertion into storage blood device.Storage
With no restrictions, the storage blood device in the present embodiment is vacuum blood collection tube to the concrete form of blood device.As disposable embodiment party
Formula, vacuum blood collection tube also could alternatively be other with negative pressure and can collect the device of blood, or replaces with and fill with negative pressure
It sets connection and the device of blood can be collected.
In order to can fully ensure that the connective stability of blood sampling structure and catheter block 1, so that the situation short enough in connecting tube 2
Under, blood sampling structure is also not easy the opposite catheter block 1 in the puncture process for puncturing needle tubing 3 and moves, in the present embodiment, connection
The hardness of pipe 2 holds 6 hardness not less than blood taking needle.As disposable embodiment, the hardness of connecting tube 2 can also only meet
Not less than the hardness of catheter block 1, and it is less than the hardness that blood taking needle holds 6.
The specific length of connecting tube 2 with no restrictions, as long as can meet blood taking needle hold 6 not to puncture needle tubing 3 punctures
It is short as far as possible under conditions of operation generates interference.In the present embodiment, the length of connecting tube 2 no more than blood taking needle hold 6 it is outer
Diameter.Such connecting tube 2 is shorter, relative to long tube, the air capacity of storage can be greatly reduced, so that in blood collection procedure
The air capacity entered in vacuum blood collection tube greatly reduces, so that the volume of dead space greatly reduces, and then can reduce dead space pair
Blood testing sample (especially APTT for hemorrhage because screening and heparin anticoagulant therapy monitoring blood testing collected
Sample) influence.As disposable embodiment, the length of connecting tube 2 can also be greater than the outer diameter that blood taking needle holds 6.
In the present embodiment, 2 one end of connecting tube is held 6 with blood taking needle and is detachably connected, and the other end detachably connects with catheter block 1
It connects.As disposable embodiment, connecting tube 2 can also hold 6 integrated moldings with blood taking needle, or be integrally formed with catheter block 1.
As disposable embodiment, it is also possible that catheter block 1, connecting tube 2 and blood taking needle hold 6 and are integrally formed.
Connecting tube 2 and blood taking needle hold the specific connection type of 6, catheter block 1 with no restrictions, in the present embodiment, connecting tube 2
Both ends 6, catheter block 1 held with blood taking needle be respectively threadedly coupled.This connection type, on the one hand, connecting tube 2 and blood taking needle hold 6,
On the other hand disassembly between catheter block 1 can make connecting tube 2 and blood taking needle hold the integral structure after 6 threaded connections, pass through
Threaded connection at connecting tube 2 and catheter block 1 is realized that the integral structure is whole and is rotated relative to catheter block 1, so as to basis
Flexible modulation blood taking needle is needed to hold 6 position relative to catheter block 1, convenient for the progress of blood sampling operation.As disposable implementation
Mode, the both ends of connecting tube 2 and blood taking needle are held can also be connected between 6, catheter block 1 by modes such as buckle, axis hole interference fits
It connects.
Blood taking needle holds 6 concrete shape with no restrictions, and it is cylindrical that the blood taking needle in the present embodiment holds 6.As convertible
Embodiment, blood taking needle hold 6 or cross section be other shapes tubular structure.
In the present embodiment, blood taking needle hold 6 axis it is parallel with the axis of conduit 4.It in this way can be by vacuum blood collection tube
When holding 6 Deng storage blood device and blood taking needle and carry out plug connection, the storage blood device such as vacuum blood collection tube is prevented to be applied to blood taking needle and hold 6
Power leads to 4 lateral deviation of conduit damage blood vessel while influencing blood flow.As disposable embodiment, blood taking needle holds 6 axis
Axis with conduit 4 can also be at an angle to each other.
Connecting tube 2 in the present embodiment is at an acute angle with the axis of conduit 4 and tilts to the direction far from the conduit 4
Inclination straight tube.Blood can be made to flow during flowing to collection blood needle 5 by conduit 4 in this way when blood sampling more smooth, while can be with
Blood probability is melted in reduction, guarantees the quality of blood sample.As disposable embodiment, the axis of connecting tube 2 can also with lead
The axis of pipe 4 is vertical.
In order to ensure obtaining preferable blood sampling effect, the conduit 4 in the present embodiment is elastic tube.As disposable implementation
Mode, conduit 4 or non-resilient pipe.
In the present embodiment, the peripheral wall of conduit 4 is equipped with the through-hole 42 being connected to the lumen of conduit 4.
Due in blood collection procedure, it is difficult to conduit 4 and the close situation of vascular wall are avoided the occurrence of, so as to cause will be wait adopt
It during blood person blood drainage to storage blood device, is also easy to produce and inhales wall phenomenon, i.e., the pin hole at needle point easily connects with vascular wall actuation
Touching, causes the blood in blood vessel can not be successfully and is entered in conduit 4 by pin hole；The present invention on the peripheral wall of conduit 4 by setting
There is the through-hole 42 being connected to the lumen of conduit 4, can be when the pin hole at needle point generate and inhales wall phenomenon, through-hole 42 can be such that conduit lets out
Pressure avoids generating and inhales wall phenomenon, so as to ensure going on smoothly for blood sampling.
As disposable embodiment, through-hole 42 can not also be set on the peripheral wall of conduit 4.
With no restrictions, in the present embodiment, through-hole 42 is in conduit 4 for specific location of the through-hole 42 on the peripheral wall of conduit 4
It is arranged on peripheral wall close to blood sampling mouth 41.
42 quantity of through-hole and specific distribution mode that the peripheral wall of conduit 4 is equipped with no restrictions, in the present embodiment, conduit
4 peripheral wall is equipped with a through-hole 42.Can also be set as disposable embodiment, when on the peripheral wall of conduit 4 there are two or
Multiple through-holes 42 such as three.
Blood taking needle provided in this embodiment further includes batching pig 7, needle stand 8 and needle handle 9.
Accommodating cavity is separated into first chamber and second chamber 11 by batching pig 7, conduit 4, connecting tube 2 respectively with first chamber
Connection.
Needle stand 8 is set in second chamber 11 towards one end of conduit 4, and is fixedly connected with the non-piercing end for puncturing needle tubing 3；
Needle stand 8, which is suitable for driving under the effect of external force, punctures the reciprocating motion of needle tubing 3, so as to puncture needle tubing 3 in first state and the second shape
Switch between state.
Needle handle 9 is fixedly connected with needle stand 8.
In the present embodiment, needle stand 8 is to stretch to set end 81 towards one end of conduit 4, stretches to set and holds 81 to be rotatably arranged in second
In chamber 11, stretch set end 81 and the cavity wall of second chamber 11 between be equipped with locking structure, locking structure be suitable for stretch set end 81 phases
Position after rotating for second chamber 11 locks.9 place of needle handle can be needed to adjust according to what is punctured and take a blood sample in this way
Angle where the axis of plane and connecting tube 2 between plane, and the angle after adjusting is locked, so as to so that needle handle
The angle of plane maintains the angle for being convenient for puncturing and take a blood sample where the axis of 9 place planes and connecting tube 2, consequently facilitating
Carry out puncture procedure and blood sampling operation.As disposable embodiment, locking structure can not also be set.
The specific constructive form of locking structure can there are many, locking structure includes multiple card slots 12 and a fixture block 82.
Multiple card slots 12 are set in the cavity wall of second chamber 11, and are uniformly distributed along the circumferential direction of second chamber 11.
Fixture block 82, which is set to, to be stretched on the periphery wall for setting end 81, and is suitable for blocking during needle stand 8 is rotated relative to catheter block 1
Enter in corresponding card slot 12 to be locked to the position after rotation.
The locking structure of this structure type need to only be such that needle stand 8 rotates relative to catheter block 1, can realize to needle handle 9
Angular adjustment where the axis of place plane and connecting tube 2 between plane, can be real after fixture block 82 is caught in card slot 12
It is easy to operate now to the locking of the angle, and have the advantages of simple structure and easy realization.
As disposable embodiment, it is also possible to multiple card slots 12 and is set on the periphery wall for stretching and setting and holding 81, fixture block 82
In the cavity wall of second chamber 11.
As disposable embodiment, locking structure also may include multiple card slots 12 and multiple fixture blocks 82.
The concrete shape of card slot 12 and fixture block 82 with no restrictions, in the present embodiment, the cross section of card slot 12 and fixture block 82
Respectively arcuation is caught in card slot 12 or deviates from from card slot 12 convenient for fixture block 82 in this way, that is, can both pass through fixture block 82 and card
Angle locking where the axis to 9 place plane of needle handle and connecting tube 2 is realized in the cooperation of slot 12 between plane, and needle can be made
Seat 8 is more smooth relative to the rotation of catheter block 1.As disposable embodiment, the cross section of fixture block 82 and card slot 12
It can be respectively v-shaped structure.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (15)
1. a kind of hemostix characterized by comprising
Catheter block (1), interior to be equipped with accommodating cavity, one end of the accommodating cavity, which is installed with, can accommodate the conduit for puncturing needle tubing (3)
(4), the hardness of the conduit (4) is less than the hardness for puncturing needle tubing (3), and the conduit (4) is connected to the accommodating cavity；Institute
The first state punctured needle tubing (3) with the cutting tip stretching conduit (4) and cutting tip are stated towards the catheter block (1) time
Contract the second state separated with the catheter block (1)；
Blood sampling structure, including collection blood needle (5)；
Connecting tube (2) connects the catheter block (1) and the blood sampling structure, and is connected to the accommodating cavity and the collection blood needle
(5)；The hardness of the connecting tube (2) is not less than the hardness of the catheter block (1).
2. hemostix according to claim 1, which is characterized in that the blood sampling structure further includes that blood taking needle is held (6), described
Blood taking needle holds (6) one end and is fixedly connected with the collection blood needle (5), and the other end is equipped with the opening (61) for being adapted for insertion into storage blood device.
3. hemostix according to claim 2, which is characterized in that the hardness of the connecting tube (2) is not less than the blood sampling
Needle holds the hardness of (6).
4. hemostix according to claim 2 or 3, which is characterized in that the length of the connecting tube (2) is adopted no more than described
Blood needle holds the outer diameter of (6).
5. the hemostix according to any one of claim 2-4, which is characterized in that described connecting tube (2) one end with it is described
Blood taking needle is held (6) and is detachably connected, and the other end is detachably connected with the catheter block (1).
6. the hemostix according to any one of claim 2-5, which is characterized in that the blood taking needle is held (6) and is cylindrical in shape.
7. hemostix according to claim 6, which is characterized in that the blood taking needle holds axis and the conduit (4) of (6)
Axis it is parallel.
8. hemostix according to claim 7, which is characterized in that the connecting tube (2) is the axis with the conduit (4)
The inclined inclination straight tubes in direction at an acute angle and to separate the conduit (4).
9. hemostix according to claim 1 to 8, which is characterized in that the conduit (4) is elastic tube.
10. hemostix according to claim 1 to 9, which is characterized in that the peripheral wall of the conduit (4) is equipped with
At least one through-hole (42) being connected to the lumen of the conduit (4).
11. hemostix according to claim 10, which is characterized in that the one of the conduit (4) separate the catheter block (1)
End is equipped with the blood sampling mouth (41) for being suitable for being pierced by for puncture needle tubing (3), and the through-hole (42) is on the peripheral wall of the conduit (4)
It is arranged close to the blood sampling mouth (41).
12. hemostix described in any one of -11 according to claim 1, which is characterized in that further include:
The accommodating cavity is separated into first chamber and second chamber (11), the conduit (4), the connecting tube by batching pig (7)
(2) it is connected to respectively with the first chamber；
Needle stand (8) is set in the second chamber (11) towards one end of the conduit (4), and punctures needle tubing (3) with described
Non-piercing end is fixedly connected；The needle stand (8) is suitable for that the puncture needle tubing (3) is driven to move back and forth under the effect of external force, with
Switch the puncture needle tubing (3) between the first state and second state.
13. hemostix according to claim 12, which is characterized in that further include the needle being fixedly connected with the needle stand (8)
Handle (9).
14. hemostix according to claim 13, which is characterized in that the one end of the needle stand (8) towards the conduit (4)
It is set end (81) to stretch, described stretch is set end (81) and be rotatably arranged in the second chamber (11), and described stretch sets end (81) and institute
It states and is equipped with locking structure between the cavity wall of second chamber (11), the locking structure is suitable for setting end (81) relative to institute to described stretch
Position after stating second chamber (11) rotation is locked.
15. hemostix according to claim 14, which is characterized in that the locking structure includes:
Multiple card slots (12), set on it is described stretch set end (81) periphery wall and the second chamber (11) both cavity walls wherein it
On one, and sets the circumferential direction at end (81) or the second chamber (11) along described stretch and be uniformly distributed；
At least one fixture block (82), set on it is described stretch set end (81) periphery wall and the second chamber (11) both cavity walls its
In it is another on, the fixture block (82) be suitable for needle stand (8) relative to catheter block (1) rotate during be caught in corresponding card slot
(12) to be locked to the position after rotation in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531987.2A CN110141255A (en) | 2019-06-19 | 2019-06-19 | Hemostix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910531987.2A CN110141255A (en) | 2019-06-19 | 2019-06-19 | Hemostix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110141255A true CN110141255A (en) | 2019-08-20 |
Family
ID=67595866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910531987.2A Pending CN110141255A (en) | 2019-06-19 | 2019-06-19 | Hemostix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110141255A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111249557A (en) * | 2020-02-14 | 2020-06-09 | 深圳汉诺医疗科技有限公司 | Artery/vein cannula external member |
| WO2021126642A3 (en) * | 2019-12-20 | 2021-07-29 | Becton, Dickinson And Company | Catheter extension set and related methods |
| WO2021150400A1 (en) * | 2020-01-24 | 2021-07-29 | Becton, Dickinson And Company | Catheter having dedicated blood collection port and related methods |
| US12023159B2 (en) | 2020-10-12 | 2024-07-02 | Becton, Dickinson And Company | Blood draw syringe with hemolysis protection |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202776322U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Vacuum blood collector with indwelling catheter |
| WO2014019204A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Integral vacuum blood collection apparatus |
| CN104146748A (en) * | 2014-07-16 | 2014-11-19 | 浙江大学 | Disposable straight internal fistula puncturing trocar |
| CN104721912A (en) * | 2015-03-26 | 2015-06-24 | 江苏阳普医疗科技有限公司 | Disposable blood vessel puncture-proof intravenous infusion needle |
| CN204600496U (en) * | 2015-04-28 | 2015-09-02 | 顶一医疗科技（昆山）有限公司 | A kind of disposable safe blood sampling Needlestick prevention device |
| WO2016052517A1 (en) * | 2014-09-29 | 2016-04-07 | 日機装株式会社 | Extracorporeal circulation indwelling needle |
| CN106264557A (en) * | 2015-06-11 | 2017-01-04 | 邓翔骏 | Structure of container |
| CN106334236A (en) * | 2016-09-28 | 2017-01-18 | 卢蓉 | Indwelling needle used in blood sampling |
| CN206454070U (en) * | 2016-11-10 | 2017-09-01 | 许昌学院 | A kind of clinical puncture and intubation device |
| CN109562253A (en) * | 2016-08-04 | 2019-04-02 | 尼普洛株式会社 | Needle assemblies and indwelling needle assembly with valve |
| CN208769795U (en) * | 2017-08-18 | 2019-04-23 | 四川省人民医院 | A kind of infant's blood taking needle |
| CN210644044U (en) * | 2019-06-19 | 2020-06-02 | 北京光耀世纪医疗科技有限公司 | Blood sampler |
-
2019
- 2019-06-19 CN CN201910531987.2A patent/CN110141255A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202776322U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Vacuum blood collector with indwelling catheter |
| WO2014019204A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Integral vacuum blood collection apparatus |
| CN104146748A (en) * | 2014-07-16 | 2014-11-19 | 浙江大学 | Disposable straight internal fistula puncturing trocar |
| WO2016052517A1 (en) * | 2014-09-29 | 2016-04-07 | 日機装株式会社 | Extracorporeal circulation indwelling needle |
| CN104721912A (en) * | 2015-03-26 | 2015-06-24 | 江苏阳普医疗科技有限公司 | Disposable blood vessel puncture-proof intravenous infusion needle |
| CN204600496U (en) * | 2015-04-28 | 2015-09-02 | 顶一医疗科技（昆山）有限公司 | A kind of disposable safe blood sampling Needlestick prevention device |
| CN106264557A (en) * | 2015-06-11 | 2017-01-04 | 邓翔骏 | Structure of container |
| CN109562253A (en) * | 2016-08-04 | 2019-04-02 | 尼普洛株式会社 | Needle assemblies and indwelling needle assembly with valve |
| CN106334236A (en) * | 2016-09-28 | 2017-01-18 | 卢蓉 | Indwelling needle used in blood sampling |
| CN206454070U (en) * | 2016-11-10 | 2017-09-01 | 许昌学院 | A kind of clinical puncture and intubation device |
| CN208769795U (en) * | 2017-08-18 | 2019-04-23 | 四川省人民医院 | A kind of infant's blood taking needle |
| CN210644044U (en) * | 2019-06-19 | 2020-06-02 | 北京光耀世纪医疗科技有限公司 | Blood sampler |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021126642A3 (en) * | 2019-12-20 | 2021-07-29 | Becton, Dickinson And Company | Catheter extension set and related methods |
| WO2021150400A1 (en) * | 2020-01-24 | 2021-07-29 | Becton, Dickinson And Company | Catheter having dedicated blood collection port and related methods |
| CN111249557A (en) * | 2020-02-14 | 2020-06-09 | 深圳汉诺医疗科技有限公司 | Artery/vein cannula external member |
| US12023159B2 (en) | 2020-10-12 | 2024-07-02 | Becton, Dickinson And Company | Blood draw syringe with hemolysis protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110141255A (en) | Hemostix | |
| EP2164539B1 (en) | System and method for continuous processing of lipoaspirate | |
| CN208851573U (en) | A kind of segmented thrombus is broken to take device | |
| CN209032530U (en) | A kind of vena cave thrombus withdrawing device | |
| US6960198B2 (en) | Tube and syringe holding device for blood collection and for producing vacuum into the tube | |
| CN200991440Y (en) | Cystis suction pump | |
| CN204890131U (en) | High -effect percutaneous puncture ware | |
| CN206687719U (en) | A kind of Novel blood taking needle | |
| CN208436229U (en) | Double-jacket tube controllable type rinses sputum aspirator tube | |
| CN215384274U (en) | Eyelid retractor for ophthalmologic operation | |
| CN208511693U (en) | A kind of mucous membrane of urinary bladder injection device used under the resectoscope convenient for bladder | |
| CN209475232U (en) | The percutaneous puncture negative pressure drainage flusher of compound abscess of neck | |
| CN209347173U (en) | A kind of Hemodialysis fistula puncture needle showing level angle | |
| CN113693644A (en) | Bone marrow extraction device with puncture point positioning function for medical bone marrow puncture | |
| CN203196121U (en) | Aspirator for endoscope surgery | |
| CN208160628U (en) | A kind of hematology's medullo-puncture needle | |
| CN207462412U (en) | The unidirectional bivalve pulse thrombolysis syringe of Split connecting rod handle | |
| CN215350977U (en) | Medical drainage tube | |
| CN210044009U (en) | Blood clot viewer | |
| CN215079388U (en) | Negative pressure hollow needle for kidney biopsy puncture | |
| CN209285918U (en) | A kind of auripuncture trocar | |
| CN214761220U (en) | Sampling device for cytopathology examination | |
| CN114305585B (en) | Stone remover for hepatobiliary department | |
| CN219558256U (en) | Circulation feedback type circulating tumor cell external magnetic filter device | |
| CN215839209U (en) | Novel cell pathology inspection is with puncture device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |