CN203226878U - Safe intravenous puncture trocar - Google Patents
Safe intravenous puncture trocar Download PDFInfo
- Publication number
- CN203226878U CN203226878U CN 201320114850 CN201320114850U CN203226878U CN 203226878 U CN203226878 U CN 203226878U CN 201320114850 CN201320114850 CN 201320114850 CN 201320114850 U CN201320114850 U CN 201320114850U CN 203226878 U CN203226878 U CN 203226878U
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- CN
- China
- Prior art keywords
- needle
- puncture
- sheath
- trocar
- needle tubing
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- 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.)
- Expired - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a safe intravenous puncture trocar and belongs to the technical field of medical devices. The safe intravenous puncture trocar comprises a cannula and a puncture needle. The puncture needle is composed of a needle tube and a needle seat. The needle tube is inserted and fixedly adheres into a center hole positioned at the front end of the needle seat, a sheath is placed at the position of the cannula close to a port, two ends of the sheath are provided with small holes, the needle tube of the trocar penetrates through the small holes positioned on the sheath to be inserted into the cannula, and pits are respectively arranged on two sides of the far end of the needle tube. In the puncture process, after the puncture needle is pulled out, the near end of the sheath is clamped at the positions of the pits of the puncture needle, the effect of protecting a needle point is achieved, puncture or scratch to medical workers caused by the needle point is avoided, and puncture is safe and lets people feel relieved.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of safety vein puncture trocar, is used for the intervention field.
Background technology
At present, because the wound of interventional therapy is little, easy, safe, effective, complication advantage such as less, become the main Therapeutic Method of some diseases.In some operation intervention procedures, need to use catheter in blood vessel, use the venipuncture trocar to set up passage, along this passage conduit is fed through the central vein position.But in venipuncture procedure; needle point is stabbed finger easily when extracting puncture needle, uses the needle point of back puncture needle exposed outside in addition, the needle point of contact patient blood; usually can damage medical personnel and waste treatment personnel, cause infection and the propagation of blood borne disease.
Summary of the invention
The purpose of this utility model provides a kind of safety vein puncture trocar, solves the problem that the present venipuncture trocar is in use easily stabbed medical personnel.
The purpose of this utility model is achieved through the following technical solutions: a kind of safety vein puncture trocar, comprise sleeve pipe and puncture needle, described puncture needle is made up of needle tubing and needle stand two parts, needle tubing is pegged graft and is cemented in the medium pore of needle stand front end, a sheath is placed at proximal port place at sleeve pipe, the sheath two ends are provided with aperture, and the aperture that the needle tubing of puncture needle passes on the sheath inserts in the sleeve pipe, and needle tubing far-end both sides are respectively equipped with pit.
Described sheath is hollow structure, and its near-end hole diameter is identical with the diameter of needle tubing, and the distal orifice diameter is bigger slightly than the diameter of needle tubing.
Described sheath is formed by hard plastic injection molding.
Advantage of the present utility model: in piercing process, after extracting puncture needle, sheath proximal end is stuck in the pit of puncture needle, plays the effect of protection needle point, avoids needle point to stab or scratch medical personnel, makes puncture safer, relieved.
Description of drawings
Fig. 1 is the profile of this utility model safety vein puncture trocar;
Fig. 2 is after this utility model safety vein puncture trocar uses, the profile of puncture needle.
The specific embodiment
This utility model is described to be a kind of safety vein puncture trocar, a kind of safety vein puncture trocar as shown in Figure 1, comprises sleeve pipe 1 and puncture needle 3, described puncture needle 3 is made up of needle tubing 31 and needle stand 32 two parts, needle tubing 31 is pegged graft and is cemented among the medium pore 3a of needle stand front end, places a sheath 2 at the proximal port place of sleeve pipe, and sheath 21 two ends are provided with aperture 21,22, the aperture 21,22 that the needle tubing 31 of puncture needle passes on the sheath inserts in the sleeve pipe, forms a whole.Needle tubing 31 far-end both sides are respectively equipped with pit.Described sheath 2 is hollow structure, and its near-end aperture 21 diameters are identical with the diameter of needle tubing 31, and distal orifice 22 diameters are bigger slightly than the diameter of needle tubing 31.As shown in Figure 2, when extracting puncture needle 3, sheath 2 is stuck in the pit on the needle tubing 31, separates with sleeve pipe 1 with puncture needle 3, and the needle point of puncture needle tubing 31 just in time is positioned at sheath 2, plays the effect of protection needle point.
Claims (3)
1. safety vein puncture trocar, comprise sleeve pipe and puncture needle, described puncture needle is made up of needle tubing and needle stand two parts, needle tubing is pegged graft and is cemented in the medium pore of needle stand front end, it is characterized in that place a sheath at the proximal port place of sleeve pipe, the sheath two ends are provided with aperture, the aperture that the needle tubing of puncture needle passes on the sheath inserts in the sleeve pipe, and needle tubing far-end both sides are respectively equipped with pit.
2. the safety vein puncture trocar according to claim 1 is characterized in that, described sheath is hollow structure, and its near-end hole diameter is identical with the diameter of needle tubing, and the distal orifice diameter is bigger slightly than the diameter of needle tubing.
3. the safety vein puncture trocar according to claim 1 and 2 is characterized in that, described sheath is formed by hard plastic injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114850 CN203226878U (en) | 2013-03-14 | 2013-03-14 | Safe intravenous puncture trocar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114850 CN203226878U (en) | 2013-03-14 | 2013-03-14 | Safe intravenous puncture trocar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203226878U true CN203226878U (en) | 2013-10-09 |
Family
ID=49283030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114850 Expired - Lifetime CN203226878U (en) | 2013-03-14 | 2013-03-14 | Safe intravenous puncture trocar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203226878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726101A (en) * | 2016-04-20 | 2016-07-06 | 湖北康泉医疗科技有限责任公司 | Puncture needle |
| CN106420015A (en) * | 2016-10-26 | 2017-02-22 | 重庆金山医疗器械有限公司 | Esophagus detector, esophagus built-in detecting device and puncture device thereof |
-
2013
- 2013-03-14 CN CN 201320114850 patent/CN203226878U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726101A (en) * | 2016-04-20 | 2016-07-06 | 湖北康泉医疗科技有限责任公司 | Puncture needle |
| CN106420015A (en) * | 2016-10-26 | 2017-02-22 | 重庆金山医疗器械有限公司 | Esophagus detector, esophagus built-in detecting device and puncture device thereof |
| CN106420015B (en) * | 2016-10-26 | 2019-05-14 | 重庆金山医疗器械有限公司 | Esophagus detector, esophagus built-in inspection and its sting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
|
| CX01 | Expiry of patent term |