CN108042881A - A kind of clinical transfusion remaining needle - Google Patents
A kind of clinical transfusion remaining needle Download PDFInfo
- Publication number
- CN108042881A CN108042881A CN201711417273.6A CN201711417273A CN108042881A CN 108042881 A CN108042881 A CN 108042881A CN 201711417273 A CN201711417273 A CN 201711417273A CN 108042881 A CN108042881 A CN 108042881A
- Authority
- CN
- China
- Prior art keywords
- flexible membrane
- puncture needle
- casing
- needle
- liquid
- 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
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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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
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
The invention discloses a kind of clinical transfusion remaining needles, and including casing, puncture needle, puncture needle is located in casing；The tube wall of casing includes the first flexible membrane and the second flexible membrane；First flexible membrane is sleeved on the outside of the second flexible membrane, and the first flexible membrane and the second flexible membrane form closed cavity；Injection institute transfusion fluid in the airtight cavity；Second flexible membrane, which is closed at the position of puncture needle needle point, is provided with liquid-entering hole；The puncture needle is provided with and the corresponding fluid hole of liquid-entering hole on the second flexible membrane close to puncture needle needle point one end.The present invention can effectively solve the problem that the moment that puncture needle is quickly extracted cause blood along sleeve outer wall flow out the technical issues of.
Description
Technical field
The present invention relates to a kind of medical instruments, and in particular to a kind of clinical transfusion remaining needle.
Background technology
Remaining needle is also known as trochar.The building block of core includes the casing that can be retained in endovascular softness, and
The puncture needle of stainless steel.
The use of remaining needle can reduce infant pain and fear to having an injection caused by due to venipuncture repeatedly, mitigate
The impatience of parent, convenient for clinical application, anxious, the rescue medication of critical patient mitigates the workload of nurse, reduces infant pain
Bitterly, thus remaining needle is in wide clinical application.
Traditional remaining needle is that one layer of soft casing is sleeved on puncture needle, when medical staff is robbing emergency, critical patient
When, casing and puncture needle are punctured into together intravascular, after casing fully enters blood vessel, withdraw out puncture needle, go out sometimes
Existing vessel inner blood flows out phenomenon along casing wall, after finding this problem, I and my team done substantial amounts of experiment and
With the repeatedly exchange of colleague both at home and abroad, find to be not in that vessel inner blood is flowed out along casing wall when puncture needle is slowly extracted
Phenomenon, when puncture needle is quickly extracted, it may appear that vessel inner blood flows out phenomenon along casing wall, clinical for many years anti-by me
Multiple research and many experiments are found, when the moment that puncture needle is quickly extracted, a kind of vacuum are formed in casing, causes intraductal atmospheric pressure
Atmospheric pressure outside less than casing, casing is interior due to suction function, and flexible sleeve outer wall can form recess, and blood can be from recess stream
Go out.
The content of the invention
It is an object of the invention to solve following technical problem：When the moment that puncture needle is quickly extracted, formed in casing
A kind of vacuum, the atmospheric pressure that intraductal atmospheric pressure is caused to be less than outside casing, casing is interior due to suction function, and flexible sleeve outer wall can be formed
Recess, blood can be flowed out from recess.
In order to achieve the goal above, the technical solution adopted in the present invention is：A kind of clinical transfusion remaining needle, including set
Pipe, puncture needle.
Puncture needle is located in casing, and puncture needle tightly againsts casing inner surface of tube wall.
The tube wall of casing includes the first flexible membrane and the second flexible membrane, and the first flexible membrane is sleeved on the outside of the second flexible membrane,
First flexible membrane and the second flexible membrane form closed cavity.
Second flexible membrane, which is closed at the position of puncture needle needle point, is provided with liquid-entering hole, and the second flexible membrane inner surface tightly againsts
Puncture needle, before puncture needle is not extracted, liquid will not be flowed out from liquid-entering hole.
The puncture needle is provided with and the corresponding fluid hole of liquid-entering hole on the second flexible membrane close to puncture needle needle point one end.
Injection institute transfusion fluid, casing connect PVC hose away from puncture needle needle point one end, are infused in the airtight cavity
Body is entered by PVC hose in puncture needle, and institute's transfusion fluid is again through liquid-entering hole on fluid hole on puncture needle and the second flexible membrane into the
One flexible membrane and the second flexible membrane are formed in closed cavity.
Compared with prior art, the advantage of the invention is that：When medical staff is when robbing emergency, critical patient, by casing
Punctured into together with puncture needle intravascular, after casing fully enters blood vessel, Quick-return goes out puncture needle, when puncture needle is quick
The moment of extraction, institute's transfusion fluid can be by that in liquid-entering hole sleeve pipe on the second flexible membrane, will not form vacuum, inside and outside retaining sleeve
Pressure balance is not in that blood flows out phenomenon along casing wall outer surface.The present invention is of low cost, easy to operate.
Description of the drawings
Fig. 1 is that traditional remaining needle quickly extracts puncture needle formation recess schematic diagram；
Fig. 2 is the structure diagram of the present invention；
Wherein, 1 is casing；2 be the first flexible membrane；3 be the second flexible membrane；4 be puncture needle；5 be liquid-entering hole；6 be to puncture
Pin needle point；7 be fluid hole；8 be recess；9 be blood vessel.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The technical solution adopted in the present invention is：A kind of clinical transfusion remaining needle, including casing, puncture needle.
Puncture needle is located in casing, and puncture needle tightly againsts casing inner surface of tube wall.
The tube wall of casing includes the first flexible membrane and the second flexible membrane, and the first flexible membrane is sleeved on the outside of the second flexible membrane,
First flexible membrane and the second flexible membrane form closed cavity.
Second flexible membrane, which is closed at the position of puncture needle needle point, is provided with liquid-entering hole, and the second flexible membrane inner surface tightly againsts
Puncture needle, before puncture needle is not extracted, liquid will not be flowed out from liquid-entering hole.
The puncture needle is provided with and the corresponding fluid hole of liquid-entering hole on the second flexible membrane close to puncture needle needle point one end.
Injection institute transfusion fluid, casing connect PVC hose away from puncture needle needle point one end, are infused in the airtight cavity
Body is entered by PVC hose in puncture needle, and institute's transfusion fluid is again through fluid hole on fluid hole on puncture needle and the second flexible membrane into the
One flexible membrane and the second flexible membrane are formed in closed cavity.
The present invention substantially operation principle describes：When medical staff is when robbing emergency, critical patient, by casing and puncture needle one
Rising punctures into intravascular, and after casing fully enters blood vessel, Quick-return goes out puncture needle, when the wink that puncture needle is quickly extracted
Between, institute's transfusion fluid can be by liquid-entering hole sleeve pipe in the airtight cavity that the first flexible membrane and the second flexible membrane are formed, will not shape
Into vacuum, retaining sleeve internal and external pressure balance is not in that blood flows out phenomenon along casing wall outer surface.
Claims (1)
1. a kind of clinical transfusion remaining needle, including casing, puncture needle, puncture needle is located in casing；It is characterized in that, the pipe of casing
Wall includes the first flexible membrane and the second flexible membrane；
First flexible membrane is sleeved on the outside of the second flexible membrane, and the first flexible membrane and the second flexible membrane form closed cavity；
Injection institute transfusion fluid in the airtight cavity；
Second flexible membrane, which is closed at the position of puncture needle needle point, is provided with liquid-entering hole；
The puncture needle is provided with and the corresponding fluid hole of liquid-entering hole on the second flexible membrane close to puncture needle needle point one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417273.6A CN108042881A (en) | 2017-12-25 | 2017-12-25 | A kind of clinical transfusion remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417273.6A CN108042881A (en) | 2017-12-25 | 2017-12-25 | A kind of clinical transfusion remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108042881A true CN108042881A (en) | 2018-05-18 |
Family
ID=62131157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711417273.6A Pending CN108042881A (en) | 2017-12-25 | 2017-12-25 | A kind of clinical transfusion remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108042881A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012249A1 (en) * | 1999-08-12 | 2001-02-22 | Lynn Lawrence A | Luer receiving vascular access system |
| CN101146568A (en) * | 2005-03-24 | 2008-03-19 | 株式会社Jms | Indwelling needle device |
| CN101204601A (en) * | 2006-12-18 | 2008-06-25 | 美第克特株式会社 | Indwelling needle assembly |
| CN102933242A (en) * | 2010-06-04 | 2013-02-13 | 株式会社Jms | Indwelling needle device |
| WO2015147173A1 (en) * | 2014-03-28 | 2015-10-01 | 日機装株式会社 | Cap for indwelling needle, indwelling needle for extracorporeal circulation with cap attached, blood circuit, and blood circuit priming method |
-
2017
- 2017-12-25 CN CN201711417273.6A patent/CN108042881A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012249A1 (en) * | 1999-08-12 | 2001-02-22 | Lynn Lawrence A | Luer receiving vascular access system |
| CN101146568A (en) * | 2005-03-24 | 2008-03-19 | 株式会社Jms | Indwelling needle device |
| CN101204601A (en) * | 2006-12-18 | 2008-06-25 | 美第克特株式会社 | Indwelling needle assembly |
| CN102933242A (en) * | 2010-06-04 | 2013-02-13 | 株式会社Jms | Indwelling needle device |
| WO2015147173A1 (en) * | 2014-03-28 | 2015-10-01 | 日機装株式会社 | Cap for indwelling needle, indwelling needle for extracorporeal circulation with cap attached, blood circuit, and blood circuit priming method |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180518 |