CN110604852B - Safety multi-head injection needle with visible scale - Google Patents
Safety multi-head injection needle with visible scale Download PDFInfo
- Publication number
- CN110604852B CN110604852B CN201910769720.7A CN201910769720A CN110604852B CN 110604852 B CN110604852 B CN 110604852B CN 201910769720 A CN201910769720 A CN 201910769720A CN 110604852 B CN110604852 B CN 110604852B
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- Prior art keywords
- seat
- needle
- self
- negative pressure
- destruction
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- 238000002347 injection Methods 0.000 title claims description 16
- 239000007924 injection Substances 0.000 title claims description 16
- 230000000007 visual effect Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
- A61M5/3298—Needles arranged in parallel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5086—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile for indicating if defective, used, tampered with or unsterile
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A safety multi-headed needle with visual graduations, comprising: a needle seat provided with a concave cavity and a needle tube fixing hole; a needle tube fixed on the needle seat; the split-flow seat is arranged in the concave cavity of the needle seat, a through hole is arranged in the split-flow seat, and the upper end of the needle tube penetrates through the through hole; the cone seat is internally provided with a channel, the middle part of the cone seat is provided with external threads, and the bottom of the cone seat is arranged in the concave cavity of the needle seat and forms a cavity with the top of the split flow seat; the negative pressure seat is sleeved outside the needle seat, the outer wall of the top of the negative pressure seat is provided with a gear groove, a warning protrusion and a first self-destruction protrusion, a diaphragm is arranged in the negative pressure seat, the diaphragm limits the descending of the needle seat, and a needle tube passing hole is formed in the diaphragm; the adjusting seat is sleeved at the middle part of the conical seat and the top of the negative pressure seat, a central hole is formed in the adjusting seat, internal threads are arranged in the central hole, and a gear bulge and a second self-destruction bulge are arranged on the inner side face of the adjusting seat. The invention has a plurality of gear positions for adjusting the extension length of the needle tube, and has a self-destruction function and a warning function before self destruction. The volume is small, the matching of the parts is compact, and the assembly can be completed at one time.
Description
Technical Field
The invention relates to the technical field of syringes, in particular to a safety multi-head type injection needle with visible scales.
Background
In the existing safety multi-head injection needle with visible scales, the structure among all the parts is not stable enough, the extending length of the needle tube cannot be adjusted, and warning is lacking in the disposable self-destruction requirement.
Disclosure of Invention
The invention aims at the problems and provides a safety multi-head injection needle with visible scales.
The aim of the invention can be achieved by the following technical scheme: a safety multi-headed needle with visual graduations, comprising: the needle seat is provided with a concave cavity with an opening at the top surface and a needle tube fixing hole communicated with the bottom surface of the concave cavity; the needle tube is penetrated and fixed in the concave cavity of the needle seat and the needle tube fixing hole; the split-flow seat is arranged in the concave cavity of the needle seat and is provided with a through hole with the top and the bottom penetrating through, and the through hole penetrates into the upper end of the needle tube; the conical seat is provided with a channel with a penetrating top and a penetrating bottom, the middle part of the conical seat is provided with external threads, the bottom of the conical seat is arranged in a concave cavity of the needle seat, the bottom of the conical seat is assembled with the top of the shunt seat and encloses a cavity, and the cavity is communicated with the through hole of the shunt seat and the channel of the conical seat; the negative pressure seat is sleeved outside the needle seat and is in a cylinder shape with openings at the top and the bottom, a gear groove, a warning protrusion and a first self-destruction protrusion are sequentially arranged on the outer wall of the top of the negative pressure seat along the circumferential direction, a diaphragm is arranged in the negative pressure seat, the diaphragm limits the descending of the needle seat, and a needle tube passing hole is arranged on the diaphragm; and the adjusting seat is sleeved at the middle part of the conical seat and the top of the negative pressure seat, is in a cover shape, is provided with a central hole and is provided with an internal thread, the internal thread is matched with the external thread at the middle part of the conical seat, the top surface of the adjusting seat is provided with a viewing window, the inner side surface of the adjusting seat is provided with a gear bulge and a second self-destruction bulge along the circumferential direction in sequence, the gear bulge is matched with the gear groove, and the second self-destruction bulge is matched with the warning bulge and the first self-destruction bulge.
Further, a limiting step is arranged on the bottom surface of the concave cavity of the needle seat, and the limiting step limits the downward movement of the split-flow seat.
Further, the side wall of the concave cavity of the needle seat is provided with a guide rib, and the guide rib extends along the axial direction of the concave cavity; the side of reposition of redundant personnel seat is equipped with first guide way, the bottom side of conical seat is equipped with the second guide way, first guide way and second guide way all cooperate with the direction muscle.
Further, a circle of positioning steps are arranged on the edge of the top surface of the shunt seat, a circle of positioning grooves are arranged on the edge of the bottom surface of the bottom of the cone seat, and the positioning steps are matched with the positioning grooves.
Further, a flow guide boss is arranged on the top surface of the flow distribution seat and is connected with the through hole; the bottom surface of the cone seat bottom is provided with a diversion groove, and the diversion groove corresponds to the diversion boss and is communicated with the channel.
Further, the top outer wall of the negative pressure seat is provided with a circle of buckling positions along the circumferential direction, the inner side surface of the adjusting seat is provided with a fixed buckle along the circumferential direction, and the buckling positions are in axial limit fit with the fixed buckle.
Further, the first self-destruction protrusion of the negative pressure seat and the second self-destruction protrusion of the adjusting seat are respectively provided with a stop surface.
Further, a first reverse cone is arranged on the bottom surface of the needle seat, and a needle tube fixing hole is formed in the first reverse cone along the axis; the bottom surface of the diaphragm plate of the negative pressure seat is provided with a second reverse cone, the second reverse cone corresponds to the first reverse cone, the second reverse cone is provided with a needle tube passing hole along the axis, the needle tube passing hole is in a reverse cone shape, the needle tube passing hole accommodates and supports the first reverse cone, and the lower end of the needle tube passes out of the needle tube passing hole.
Further, a suction connection port is arranged on the side wall of the negative pressure seat, and the suction connection port is communicated with the space below the diaphragm plate.
Further, the top surface of the negative pressure seat is sequentially provided with a gear mark and a self-destruction mark along the circumferential direction, and the gear mark and the self-destruction mark respectively correspond to the gear groove and the first self-destruction protrusion and are spaced one by one; the top surface of adjusting the seat is equipped with the instruction sign, the instruction sign points to the window.
Compared with the prior art, the invention has the beneficial effects that: the needle seat, the needle tube, the split-flow seat, the cone seat, the negative pressure seat and the adjusting seat are adopted to form, a plurality of gears are designed, the extending length of the needle tube is adjusted through different gears, the self-destruction device has a warning function and a self-destruction function before self-destruction, and the use state can be identified through different marks. The whole product has small volume, compact matching among parts and high matching degree, and can be assembled at one time.
Drawings
Fig. 1 is an overall schematic diagram of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of an embodiment of the present invention.
FIG. 3 is an exploded view of an embodiment of the present invention.
Fig. 4 is a schematic structural view of a needle holder according to an embodiment of the present invention.
Fig. 5 is a cross-sectional view of a hub in an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a split-flow seat according to an embodiment of the invention.
Fig. 7 is a schematic diagram of another structure of a split-flow seat according to an embodiment of the invention.
Fig. 8 is a schematic structural view of a conical seat according to an embodiment of the invention.
Fig. 9 is a schematic view of another structure of the conical seat according to an embodiment of the invention.
Fig. 10 is a schematic structural diagram of a negative pressure seat according to an embodiment of the invention.
Fig. 11 is a schematic diagram of another structure of a negative pressure seat according to an embodiment of the invention.
Fig. 12 is a cross-sectional view of a negative pressure seat in an embodiment of the invention.
Fig. 13 is a schematic structural view of an adjusting seat according to an embodiment of the invention.
Fig. 14 is a schematic view of another structure of an adjusting seat according to an embodiment of the invention.
Fig. 15 is an assembly schematic view of a needle hub, a needle cannula, a split-flow holder, and a conical holder according to an embodiment of the present invention.
Fig. 16 is an assembly schematic diagram of a needle hub, needle cannula, split-flow holder, conical holder, negative pressure holder and adjustment holder in an embodiment of the present invention.
Fig. 17 is a schematic top view of an embodiment of the present invention in normal use.
Fig. 18 is a schematic top view illustrating a normal use state to a self-destructing state according to an embodiment of the present invention.
The components in the figures are numbered as follows:
1 needle stand
101 Concave cavity
102 Limit step
103 Guide rib
104 First inverted cone
105 Needle tube fixing hole
2 Needle tube
3 Shunt seat
301 Through hole
302 Flow guide boss
303 Locating step
304 First guide groove
4-Cone seat
401 Channel
402 External screw thread
403 Flow guiding groove
404 Locating hole
405 Positioning groove
406 Second guide groove
5 Negative pressure seat
501 Gear groove
502 Warning protrusion
503 First self-destructing bump
504 Gear identification
505 Self-destruction identification
506 Button position
507 Diaphragm plate
508 Boss
509 Second inverted cone
510 Needle tube through hole
511 Suction connection port
6 Adjusting seat
601 Centre hole
602 Internal screw thread
603 Window
604 Indicates an identification
605 Gear projection
606 Second self-destructing bump
607 Fixing buckle.
Detailed Description
The following detailed description of the invention, taken in conjunction with the accompanying drawings, will provide those skilled in the art with a more readily understood understanding of how the invention may be practiced. While the present invention has been described in connection with the preferred embodiments thereof, these embodiments are set forth only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, a safety multi-head injection needle with visual scales comprises a needle seat 1, a needle tube 2, a split-flow seat 3, a cone seat 4, a negative pressure seat 5 and an adjusting seat 6.
Referring to fig. 4 and 5, the needle seat 1 is in a block shape with a square cross section being a round angle, a concave cavity 101 with an open top surface is arranged in the needle seat 1, a circle of limiting steps 102 are arranged on the bottom surface of the concave cavity 101 along the circumferential direction, 2 guide ribs 103,2 are arranged on the side wall of the concave cavity 101, the guide ribs 103 are symmetrically arranged along the axis of the concave cavity 101 at 180 degrees and extend along the axial direction, 9 first reverse cones 104 are distributed on the bottom surface of the needle seat 1 along the central array, each first reverse cone 104 is provided with a reverse cone needle tube fixing hole 105 along the axis, and the needle tube fixing holes 105 are communicated with the concave cavity 101.
The number of the needle tubes 2 is more than 3, in this embodiment, 9 needle tubes 2 are taken as an example, after passing through the concave cavity 101 of the needle seat 1, the 9 needle tubes 2 respectively freely fall from the needle tube fixing holes 105 of the 9 first reverse cones 104 to the designed height, and then are fixed by environment-friendly quick-drying glue.
The shunt seat 3 is arranged in the concave cavity 101 of the needle seat 1, and the bottom surface of the shunt seat is matched with the limit step 102. Referring to fig. 6 and 7, the split-flow seat 3 is a thin block with a round square cross section, the cross section of the split-flow seat 3 is matched with the cross section of the concave cavity 101 of the needle seat 1,9 through holes 301,9 extending axially are distributed on the split-flow seat 3 along the axis array, the through holes 301 correspond to the 9 first reverse cones 104 of the needle seat 1 respectively, and the upper ends of the 9 needle tubes penetrate into the 9 through holes 301 without interference. The top surface of reposition of redundant personnel seat 3 is equipped with 8 water conservancy diversion boss 302,8 the water conservancy diversion boss 302 is radial distribution all around along the top surface center of reposition of redundant personnel seat 3, and 8 holistic centers of water conservancy diversion boss 302 and 8 tip are connected with 9 through-holes respectively, and the top surface edge of reposition of redundant personnel seat 3 is equipped with round location step 303, and the side of reposition of redundant personnel seat 3 is equipped with 2 first guide way 304,2 first guide way 304 is 180 symmetrical arrangement along the axis of reposition of redundant personnel seat 3, 2 first guide way 304 cooperatees with 2 guide ribs 103 of needle file 1 respectively.
The bottom of the cone seat 4 is arranged in the concave cavity 101 of the needle seat 1 and is assembled with the shunt seat 3. Referring to fig. 8 and 9, a channel 401 is provided along an axis in the conical seat 4, an external thread 402 is provided on the outer side of the middle of the conical seat 4, the bottom of the conical seat 4 is in a thin block shape with a round square cross section, the cross section of the bottom of the conical seat 4 is matched with the cross section of the concave cavity 101 of the needle seat 1, 8 diversion grooves 403,8 are provided on the bottom surface of the bottom of the conical seat 4, the diversion grooves 403 are radially distributed along the center of the bottom surface of the bottom of the conical seat 4, the 8 diversion grooves 403 respectively correspond to the 8 diversion bosses 302 of the diversion seat 3, one end of the 8 diversion grooves 403 is communicated with the channel 401, positioning holes 404 are provided on the other ends of the 8 diversion grooves 403, a circle of positioning grooves 405 matched with the positioning steps 303 of the diversion seat 3 are provided on the edge of the bottom surface of the conical seat 4, 2 second guiding grooves 406,2 are symmetrically arranged along the axis of the conical seat 4, and the 2 second guiding grooves 406 are respectively matched with the 2 guiding ribs 103 of the needle seat 1.
The negative pressure seat 5 is sleeved outside the needle seat 1. Referring to fig. 10 to 12, the negative pressure seat 5 is in a cylindrical shape with openings at the top and the bottom, the cross section of the top of the negative pressure seat 5 is circular, 6 gear grooves 501, a warning protrusion 502 and a first self-destruction protrusion 503 are sequentially arranged on the outer wall of the top of the negative pressure seat 5 along the circumferential direction, a stop surface is arranged on the first self-destruction protrusion 503, 6 gear marks 504 and a self-destruction mark 505,6 are sequentially arranged on the top surface of the negative pressure seat 5 along the circumferential direction, the gear marks 504 and the self-destruction marks 505 are respectively corresponding to the 6 gear grooves 501 and the first self-destruction protrusion 503 and are spaced one by one, and a circle of buckling positions 506 are also circumferentially arranged on the outer wall of the top of the negative pressure seat 5. The cross section of the middle part and the bottom of negative pressure seat 5 is the fillet square, is equipped with the diaphragm 507 in the middle part of negative pressure seat 5, the top surface of diaphragm 507 is along central array distribution has 4 circular boss 508,4 boss 508 sets up in the clearance between 9 first reverse cones 104 of needle file 1, and the bottom surface of diaphragm 507 is along central array distribution has 9 second reverse cones 509,9 second reverse cones 509 respectively with 9 first reverse cones 104 of needle file 1 correspond, the lower extreme of every second reverse cone 509 flushes with the bottom surface of negative pressure seat 5, and the second reverse cone 509 is equipped with the needle tubing through hole 510 of back taper along the axis, the needle tubing through hole 510 holds and supports the first reverse cone 104 of needle file 1, and the lower extreme of needle tubing 2 wears out from needle tubing through hole 510 simultaneously, and the middle part lateral wall of negative pressure seat 5 is equipped with suction connector 511, suction connector 511 communicates with the space below the diaphragm 507 in the negative pressure seat 5.
The adjusting seat 6 is sleeved on the middle part of the conical seat 4 and the top of the negative pressure seat 5. Referring to fig. 13 and 14, the adjusting seat 6 is in a cover shape, a central hole 601 is arranged in the center of the top surface of the adjusting seat 6, an internal thread 602 matched with the external thread 402 in the middle of the conical seat 4 is arranged in the central hole 601, a viewing window 603 and an indication mark 604 are arranged on the top surface of the adjusting seat 6, the indication mark 604 points to the viewing window 603 along the radial direction, the viewing window 603 is used for observing a gear mark 504 and a self-destruction mark 505 at the top of the negative pressure seat 5, a gear bulge 605 and a second self-destruction bulge 606 are sequentially arranged on the inner side surface of the adjusting seat 6 along the circumferential direction, the gear bulge 605 is matched with the gear groove 501, a stop surface is arranged on the second self-destruction bulge 606, the second self-destruction bulge 606 is matched with the warning bulge 502 and the first self-destruction bulge 503, and more than 2 fixing buckles 607,2 are uniformly distributed on the inner side surface of the adjusting seat 6 along the circumferential direction, and the fixing buckles 607 are axially and limitedly matched with the buckling positions 506.
During assembly, referring to fig. 15, the needle tube 2 is fixed in the needle tube fixing hole 105 of the needle seat 1 through environment-friendly quick-drying glue, the split-flow seat 3 and the conical seat 4 are assembled by matching the positioning step 303 with the positioning groove 405, a cavity is defined between the top surface of the split-flow seat 3 and the bottom surface of the conical seat 4, the split-flow seat 3 and the conical seat 4 are matched with the guide rib 103 of the needle seat 1 in a guiding manner through the first guide groove 304 and the second guide groove 406, the split-flow seat 3 and the conical seat 4 are assembled into the cavity 101 of the needle seat 1 together, and the upper end of the needle tube 2 penetrates into the through hole 301 of the split-flow seat 3 without interference; referring to fig. 16, the assembled needle holder 1, needle tube 2, split-flow seat 3 and cone seat 4 are installed in the negative pressure seat 5, the adjusting seat 6 is sleeved on the middle part of the cone seat 4 and the top of the negative pressure seat 5, the internal thread 602 of the adjusting seat 6 is matched with the external thread 402 in the middle part of the cone seat 4, and the adjusting seat 6 and the negative pressure seat 5 are assembled through the axial limit matching of the fixing buckle 607 and the buckling position 506.
In normal use, referring to fig. 17, the adjusting seat 6 is rotated clockwise, and the adjusting seat 6 pushes the conical seat 4 to move downwards along the axial direction, the conical seat 4 drives the split-flow seat 3 and the needle tube 2 to move together, and the needle tube 2 extends downwards from the negative pressure seat 5 because the internal thread 602 of the adjusting seat 6 is matched with the external thread 402 in the middle of the conical seat 4. During the rotation of the adjusting seat 6, the gear projection 605 of the adjusting seat 6 is slidingly engaged with each gear groove 501 of the negative pressure seat 5, so as to realize the adjustment of the extension length of the needle tube. The window 603 of the adjusting seat 6 displays the gear mark 504 of the corresponding gear, so that the gear mark 504 can be read to know the extension length of the needle tube of the gear.
The safety multi-head injection needle with the visible scales has the function of self-destruction, and the warning bulge 502 of the negative pressure seat 5 plays a role in warning before self-destruction in order to prevent the direct self-destruction due to carelessness during clinical use. Referring to fig. 18, the adjusting seat 6 is rotated counterclockwise, and the adjusting seat 6 pushes the conical seat 4 to move upwards along the axial direction, so that the conical seat 4 drives the split-flow seat 3 and the needle tube 2 to move upwards together, because the internal thread 602 of the adjusting seat 6 is matched with the external thread 402 in the middle of the conical seat 4. When the second self-destruction protrusion 603 of the adjusting seat 6 slides through the first self-destruction protrusion 503 of the negative pressure seat 5 to realize self-destruction, the second self-destruction protrusion 603 interferes with the warning protrusion 502 of the negative pressure seat 5, thereby playing a warning role. After the second self-destruction protrusion 603 of the adjusting seat 6 slides through the first self-destruction protrusion 503 of the negative pressure seat 5, at this time, an attempt is made to rotate the adjusting seat 6 clockwise, the stopping surface of the second self-destruction protrusion 603 is blocked by the stopping surface of the first self-destruction protrusion 503, the window 603 of the adjusting seat 6 displays the self-destruction mark 505, the internal thread cannot rotate to the external thread 402, the adjusting seat 6 cannot be reset, and the safety multi-head injection needle with visual scale enters a self-destruction state and cannot be used any more.
It should be noted that numerous variations and modifications are possible in light of the fully described invention, and are not limited to the specific examples of implementation described above. The above-described embodiments are merely illustrative of the present invention and are not intended to be limiting. In general, the scope of the present invention should include those variations or alternatives and modifications apparent to those skilled in the art.
Claims (10)
1. A safety multi-headed needle with visual graduations, comprising:
The needle seat is provided with a concave cavity with an opening at the top surface and a needle tube fixing hole communicated with the bottom surface of the concave cavity;
The needle tube is penetrated and fixed in the concave cavity of the needle seat and the needle tube fixing hole;
the split-flow seat is arranged in the concave cavity of the needle seat and is provided with a through hole with the top and the bottom penetrating through, and the through hole penetrates into the upper end of the needle tube;
the conical seat is provided with a channel with a penetrating top and a penetrating bottom, the middle part of the conical seat is provided with external threads, the bottom of the conical seat is arranged in a concave cavity of the needle seat, the bottom of the conical seat is assembled with the top of the shunt seat and encloses a cavity, and the cavity is communicated with the through hole of the shunt seat and the channel of the conical seat;
The negative pressure seat is sleeved outside the needle seat and is in a cylinder shape with openings at the top and the bottom, a gear groove, a warning protrusion and a first self-destruction protrusion are sequentially arranged on the outer wall of the top of the negative pressure seat along the circumferential direction, a diaphragm is arranged in the negative pressure seat, the diaphragm limits the descending of the needle seat, and a needle tube passing hole is arranged on the diaphragm; and
The adjusting seat is sleeved at the middle part of the conical seat and the top of the negative pressure seat, the adjusting seat is in a cover shape, a central hole is formed in the adjusting seat, an internal thread is arranged in the central hole, the internal thread is matched with an external thread in the middle part of the conical seat, a viewing window is formed in the top surface of the adjusting seat, a gear bulge and a second self-destruction bulge are sequentially arranged on the inner side surface of the adjusting seat along the circumferential direction, the gear bulge is matched with the gear groove, and the second self-destruction bulge is matched with the warning bulge and the first self-destruction bulge.
2. The safety multi-head injection needle with visual scales as claimed in claim 1, wherein a limiting step is arranged on the bottom surface of the concave cavity of the needle seat, and the limiting step limits the downward movement of the split-flow seat.
3. The safety multi-head injection needle with visual scales as claimed in claim 1, wherein the side wall of the concave cavity of the needle seat is provided with a guide rib, and the guide rib extends along the axial direction of the concave cavity; the side of reposition of redundant personnel seat is equipped with first guide way, the bottom side of conical seat is equipped with the second guide way, first guide way and second guide way all cooperate with the direction muscle.
4. The safety multi-head injection needle with visual scales as set forth in claim 1, wherein a circle of positioning steps are provided along the top surface of the split-flow seat, a circle of positioning grooves are provided along the bottom surface of the bottom of the cone seat, and the positioning steps are matched with the positioning grooves.
5. The safety multi-head injection needle with visual scales as set forth in claim 1, wherein the top surface of the split-flow seat is provided with a guide boss, and the guide boss is connected with the through hole; the bottom surface of the cone seat bottom is provided with a diversion groove, and the diversion groove corresponds to the diversion boss and is communicated with the channel.
6. The safety multi-head injection needle with visual scales as set forth in claim 1, wherein a circle of buckling positions are circumferentially arranged on the top outer wall of the negative pressure seat, a fixed buckle is circumferentially arranged on the inner side surface of the adjusting seat, and the buckling positions are axially and limitedly matched with the fixed buckle.
7. The safety multi-head injection needle with visual scales as claimed in claim 1, wherein the first self-destruction protrusion of the negative pressure seat and the second self-destruction protrusion of the adjusting seat are provided with stop surfaces.
8. The safety multi-head injection needle with visual scales as claimed in claim 1, wherein the bottom surface of the needle seat is provided with a first reverse cone, and the first reverse cone is provided with a needle tube fixing hole along the axis; the bottom surface of the diaphragm plate of the negative pressure seat is provided with a second reverse cone, the second reverse cone corresponds to the first reverse cone, the second reverse cone is provided with a needle tube passing hole along the axis, the needle tube passing hole is in a reverse cone shape, the needle tube passing hole accommodates and supports the first reverse cone, and the lower end of the needle tube passes out of the needle tube passing hole.
9. The safety multi-head syringe of claim 1, wherein the side wall of the negative pressure seat is provided with a suction connection port, and the suction connection port is communicated with a space below the diaphragm.
10. The safety multi-head injection needle with visual scales according to claim 1, wherein a gear mark and a self-destruction mark are sequentially arranged on the top surface of the negative pressure seat along the circumferential direction, and the gear mark and the self-destruction mark correspond to the gear groove and the first self-destruction protrusion respectively and are spaced one by one; the top surface of adjusting the seat is equipped with the instruction sign, the instruction sign points to the window.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769720.7A CN110604852B (en) | 2019-08-20 | 2019-08-20 | Safety multi-head injection needle with visible scale |
| PCT/CN2020/109825 WO2021032089A1 (en) | 2019-08-20 | 2020-08-18 | Visually graduated safe multi-head injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769720.7A CN110604852B (en) | 2019-08-20 | 2019-08-20 | Safety multi-head injection needle with visible scale |
Publications (2)
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| CN110604852B (en) * | 2019-08-20 | 2024-09-10 | 贝普医疗科技股份有限公司 | Safety multi-head injection needle with visible scale |
| CN111569243A (en) * | 2020-04-13 | 2020-08-25 | 昆山安卓医疗科技有限公司 | Nine-hole water laser needle |
| CN111569190A (en) * | 2020-04-13 | 2020-08-25 | 昆山安卓医疗科技有限公司 | Five-hole water laser needle |
| CN114209927B (en) * | 2020-12-21 | 2024-05-10 | 艾诺克医美科技(珠海)有限公司 | Multi-needle injection needle capable of reducing internal bubbles |
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| CN101310880A (en) * | 2007-05-25 | 2008-11-26 | 李英日 | Disposable syringe destroy device |
| US8961470B2 (en) * | 2011-02-17 | 2015-02-24 | Steven Schraga | Pen needle with safety shield system |
| CN103648549B (en) * | 2011-05-06 | 2016-09-14 | 赛诺菲-安万特德国有限公司 | To re-using protection by disposal type parts |
| CN103143080B (en) * | 2013-01-11 | 2016-05-11 | 英属维尔京群岛圣采科技投资有限公司 | High-safety needle staying on vein |
| EP2982402B1 (en) * | 2013-04-05 | 2020-09-02 | Terumo Kabushiki Kaisha | Injection needle assembly and drug injection device |
| EP3087010B1 (en) * | 2013-12-27 | 2018-12-12 | William Beaumont Hospital | Container closure, container assembly and method for utilizing the same |
| CN105582613A (en) * | 2015-12-10 | 2016-05-18 | 厦门波耐模型设计有限责任公司 | Multi-hole multi-needle injection needle |
| CN106178245A (en) * | 2016-08-04 | 2016-12-07 | 杭州电子科技大学 | A kind of micropin array device for the accurate subcutaneous administration of Wicresoft |
| CN208641537U (en) * | 2018-03-09 | 2019-03-26 | 中国人民解放军军事科学院军事医学研究院 | A kind of transdermal delivery device |
| CN108926752B (en) * | 2018-06-29 | 2024-06-07 | 广东先来医疗科技有限公司 | Hose safety transfusion needle |
| CN110604852B (en) * | 2019-08-20 | 2024-09-10 | 贝普医疗科技股份有限公司 | Safety multi-head injection needle with visible scale |
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