CN220141770U - Central venipuncture trocar with protection device - Google Patents
Central venipuncture trocar with protection device Download PDFInfo
- Publication number
- CN220141770U CN220141770U CN202320968937.2U CN202320968937U CN220141770U CN 220141770 U CN220141770 U CN 220141770U CN 202320968937 U CN202320968937 U CN 202320968937U CN 220141770 U CN220141770 U CN 220141770U
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- China
- Prior art keywords
- clamping arm
- needle
- trocar
- puncture needle
- elastic clamp
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- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 229920003023 plastic Polymers 0.000 claims abstract description 6
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- 239000000463 material Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 2
- 206010073310 Occupational exposures Diseases 0.000 abstract description 7
- 231100000675 occupational exposure Toxicity 0.000 abstract description 7
- 239000002906 medical waste Substances 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract 1
- 208000035473 Communicable disease Diseases 0.000 description 7
- 210000005077 saccule Anatomy 0.000 description 7
- 208000012266 Needlestick injury Diseases 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 208000006454 hepatitis Diseases 0.000 description 2
- 231100000283 hepatitis Toxicity 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
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- 206010011409 Cross infection Diseases 0.000 description 1
- 241000700721 Hepatitis B virus Species 0.000 description 1
- 241000725303 Human immunodeficiency virus Species 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to the technical field of medical appliances, in particular to a central venous puncture trocar with a protection device, which comprises a needle cylinder, wherein a puncture needle is detachably arranged on the needle cylinder, and an elastic clamp is sleeved outside the puncture needle in a sliding manner; the elastic clamp is provided with a through hole in the center and comprises a first clamping arm and a second clamping arm which are connected with each other, the first clamping arm and the second clamping arm are obliquely staggered, and the tail ends of the first clamping arm and the second clamping arm are respectively provided with a limiting plate vertical to the first clamping arm and the second clamping arm; semi-surrounding clamping rings are symmetrically arranged on the first clamping arm and the second clamping arm; the first clamping arm and the second clamping arm are integrally formed, and the material of the first clamping arm and the second clamping arm is elastic metal material. The outside of the puncture needle is also sleeved with a plastic protective sleeve, one end of the protective sleeve, which is close to the needle cylinder, is fixedly connected with a balloon, and the elastic clamp is positioned in the balloon. The elastic clamp arranged on the puncture needle can be automatically clamped when the needle is withdrawn, the sharp part of the needle point is covered, doctors and medical waste disposal personnel are prevented from being injured by the needle point in subsequent operation, and occupational exposure risk is reduced.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a central venous puncture trocar with a protection device.
Background
The end of the clinical puncture needle is a sharp needle head, and the needle head is unprotected, so that after the puncture operation is finished, the sharp puncture needle head is exposed outside, operators are easily injured by the needle head by mistake, and meanwhile, the follow-up waste recycling personnel are also easily injured by the exposed sharp needle head when medical waste is treated, so that cross infection is caused, and the spreading risk of infectious diseases is further increased. The occupational exposure needle-stick injury of the blood infectious diseases seriously affects the physical and psychological health and work of medical staff, and the disease prevention control center (CDC) estimates that 80% -90% of the infectious diseases of healthy medical staff (doctors, nurses, waste recycling staff and the like) are caused by the occupational exposure needle-stick injury, and 80% of nurses in the medical staff which are needle-stick injured.
After occupational exposure to needle sticks, medical personnel may be exposed to infectious disease pathogens transmitted through blood pathways such as hepatitis b, hepatitis c, aids, syphilis, etc., and it has been demonstrated that 20 pathogens can be transmitted through needle stick sticks, which are inoculated with human immunodeficiency virus and hepatitis b virus with fatal consequences of infection. Therefore, professional protection in daily work is important.
Therefore, in the prior art, a protection sleeve is sleeved outside the puncture needle to protect the puncture needle, for example, a disposable puncture-proof insulin needle disclosed in chinese patent No. CN217697533U comprises a sleeve, a needle body, a protection sleeve and a needle cover, wherein the needle cover is movably connected with the sleeve, and can pop out and cover the needle. The technical proposal has the problems that the device has complex structure and high manufacturing cost, and is difficult to truly popularize and benefit the vast medical staff.
Disclosure of Invention
In order to solve the problems, the utility model provides a central venipuncture trocar with a protection device based on the prior protection device with the puncture needle.
The utility model solves the problems existing in the prior art through the following technical scheme:
the utility model provides a central venipuncture trocar with a protection device, which comprises a needle cylinder, a puncture needle is detachably arranged on the needle cylinder, an elastic clamp is sleeved outside the puncture needle in a sliding mode, the elastic clamp comprises a first clamping arm and a second clamping arm which are mutually connected, and a through hole is formed in the center of the elastic clamp and between the first clamping arm and the second clamping arm.
Further, the first clamping arm and the second clamping arm are obliquely staggered; furthermore, the first clamping arm and the second clamping arm are obliquely and symmetrically arranged by taking the puncture needle as a symmetry axis.
Further, limiting plates perpendicular to the first clamping arm and the second clamping arm are arranged at the tail ends of the first clamping arm and the second clamping arm.
Further, semi-surrounding clamping rings are symmetrically arranged on the first clamping arm and the second clamping arm, and the diameter of each clamping ring is not smaller than that of the puncture needle.
Further, the first clamping arm and the second clamping arm are integrally formed; further, the first clamping arm, the second clamping arm and the limiting plates respectively arranged on the first clamping arm and the second clamping arm are integrally formed.
Further, the elastic clamp is made of metal or hard plastic with elasticity.
Further, the outside of the puncture needle is sleeved with a protective sleeve, and the whole puncture needle is covered by the protective sleeve and can slide on the protective sleeve.
Further, one end of the protective sleeve, which is close to the needle cylinder, is fixedly connected with a hollow balloon, the volume of the balloon is larger than that of the elastic clamp, and the elastic clamp is positioned in the balloon.
Further, the material of protective sheath is soft plastics.
Compared with the prior art, the utility model has the beneficial effects that:
1. the elastic clamp arranged on the puncture needle can be automatically clamped when the needle is withdrawn, the sharp part of the needle point is covered, the medical staff and the medical garbage disposal staff in the follow-up operation are prevented from being pricked by the needle point, the risk of infectious diseases caused by occupational exposure is reduced, the life health of the medical staff and the medical garbage disposal staff is ensured, the operation is convenient, the structure is simple, the cost is low, and the popularization and the use are convenient.
2. The protective sleeve arranged on the puncture needle can be used as a protective layer of the puncture needle before use and a primary fixing device of an elastic clamp together with the saccule, and can also be used as a channel in a central venipuncture scene after needle withdrawal, so that the placement of a guide wire is guided, and the practicability is improved.
Drawings
For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a central venipuncture trocar with a protective device according to the present utility model;
FIG. 2 is a schematic view of the central venipuncture trocar with the protection mechanism according to the present utility model in the withdrawn state;
fig. 3 is a schematic view of the spring clip of the central venous puncture trocar with the protection device of the present utility model.
Wherein: 1-protective sleeve, 2-pjncture needle, 3-elasticity clamp, 3.1-first arm, 3.2-first snap ring, 3.3-first limiting plate, 3.4-second arm, 3.5-second snap ring, 3.6-second limiting plate, 3.7-through-hole, 4-sacculus, 5-cylinder.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1-3, the central venipuncture trocar with the protection device of the utility model comprises a needle cylinder 5, a puncture needle 2 is detachably arranged on the needle cylinder 5, an elastic clamp 3 is sleeved outside the puncture needle 2 in a sliding manner, the elastic clamp 3 comprises a first clamping arm 3.1 and a second clamping arm 3.4 which are connected with each other, and a through hole 3.7 is formed between the first clamping arm 3.1 and the second clamping arm 3.4 at the center of the elastic clamp 3. According to the elastic clamp 3 arranged on the puncture needle 2, the first clamping arm 3.1 and the second clamping arm 3.4 can be automatically clamped when the puncture needle is withdrawn, the sharp part of the needle tip of the puncture needle 2 is covered, the medical staff and the medical garbage disposal staff are prevented from being pricked by the needle in the follow-up operation, the risk of infectious diseases caused by occupational exposure is reduced, the life health of the medical staff and the medical garbage disposal staff is ensured, the operation is convenient, the structure is simple, the cost is low, and the popularization and the use are convenient.
Specifically, as shown in fig. 1 and 3, the middle sections of the first clamping arm 3.1 and the second clamping arm 3.4 are thinner, and are obliquely staggered with the puncture needle 2 as a symmetry axis, and symmetrically arranged, so that the first clamping arm 3.1 and the second clamping arm 3.4 can hold the puncture needle 2 from the side while accommodating the puncture needle 2 to pass through.
Specifically, as shown in fig. 3, the end of the first clamping arm 3.1 is provided with a first limiting plate 3.3 perpendicular to the first clamping arm 3.1, and the end of the second clamping arm 3.4 is provided with a second limiting plate 3.6 perpendicular to the second clamping arm 3.4. The setting of limiting plate for when moving back the needle, when the syringe needle moves back to the inside of elasticity clamp 3, first centre gripping arm 3.1 and second centre gripping arm 3.4 rebound towards the direction that is close to pjncture needle 2, drive first limiting plate 3.3 and second limiting plate 3.6 and close the knot and hold, cover the syringe needle cover of pjncture needle 2, avoid its exposure outside.
Specifically, as shown in fig. 1-3, a first clamping ring 3.2 and a second clamping ring 3.5 which are semi-enclosed are respectively arranged on the first clamping arm 3.1 and the second clamping arm 3.4, and the diameter of the clamping ring is slightly larger than that of the puncture needle. When the puncture needle 2 retreats to the inside of the elastic clamp 3, the first clamping arm 3.1 and the second clamping arm 3.4 rebound towards the direction close to the puncture needle 2, and the first clamping ring 3.2 and the second clamping ring 3.5 are driven to respectively clamp the puncture needle 2 from two sides, so that the spring clamp 3 is clamped on the puncture needle 2, and the spring clamp 3 is prevented from falling.
Specifically, as shown in fig. 3, the first clamping arm 3.1, the second clamping arm 3.4 and the first limiting plate 3.3 and the second limiting plate 3.6 respectively installed on the first clamping arm and the second clamping arm are integrally formed, the elastic clamp 3 is made of metal with elasticity, and the integrally formed metal elastic clamp is simple in production and good in rebound effect, so that the reliability of the whole device is guaranteed.
Specifically, as shown in fig. 1 and 3, a protective sleeve 1 is sleeved outside the puncture needle 2, the whole puncture needle 2 is covered by the protective sleeve 1 and can slide on the protective sleeve 1, and the protective sleeve 1 is made of soft plastic. The protective sleeve 1 can be used as a protective layer of the puncture needle 2 before the whole trocar is used, and can be used as a primary fixing device of the elastic clamp 3 together with the saccule 4, if necessary, the protective sleeve can not be pulled out immediately after the trocar is withdrawn, and can also be used as a guide channel in some clinical scenes such as central venipuncture, and can guide the placement of a guide wire and a bracket, so that the simple structure has more purposes and the practicability is increased.
Specifically, as shown in fig. 1 and 3, one end of the protective sleeve 1, which is close to the needle cylinder 5, is fixedly connected with a hollow balloon 4, the volume of the balloon 4 is larger than that of the elastic clamp 3, and the elastic clamp 3 is positioned in the balloon 4. The saccule 4 is fixedly connected with the protective sleeve 1, and one side of the saccule 4, which is close to the needle head of the puncture needle 2, is provided with an opening and is communicated with the interior of the protective sleeve 1; the end of the balloon 4 near the needle cylinder 5 is of an open structure and is not connected with the needle cylinder 5. The elastic clamp 3 is covered by the saccule 4 and is temporarily fixed at one end of the puncture needle 2 close to the needle cylinder 5, so that the puncture operation is convenient for medical staff. The balloon 4 and the protective sleeve 1 form a hollow cavity structure communicated with the inside, and if necessary, after the puncture needle 2 is pulled out, the balloon 4 and the protective sleeve 1 can be left at the puncture point to serve as a central vein puncture channel for assisting in the placement of a guide wire and the like.
The central venipuncture trocar with the protection device is used for normally performing puncture operation, and determining whether to keep a protection sleeve according to clinical requirements after the puncture is finished. If the protective sleeve 1 is required to be detained at the puncture position, the sacculus 4 or the protective sleeve 1 is slightly pinched, then the puncture needle 2 is withdrawn, when the puncture needle 2 is retracted into the elastic clamp 3, the first clamping arm 3.1 and the second clamping arm 3.4 rebound towards the direction close to the puncture needle 2, the first limiting plate 3.3 and the second limiting plate 3.6 are driven to be buckled, the needle head of the puncture needle 2 is covered, and the first clamping ring 3.2 and the second clamping ring 3.5 are driven to respectively buckle the puncture needle 2 from two sides, so that the elastic clamp 3 is clamped on the puncture needle 2, then the puncture needle 2 can be discarded, and then the operations such as further wire insertion and the like are carried out through a passage in the detained protective sleeve 1; if the protective sleeve 1 at the puncture position does not need to be reserved, the whole trocar can be pulled out, then the saccule 4 or the protective sleeve 1 is pinched, the puncture needle is pulled back until the elastic clamp 3 clamps the needle head, and then the whole device is abandoned. The elastic clamp 3 arranged on the puncture needle can be automatically clamped when the puncture needle is withdrawn, the sharp part of the needle point is covered, the medical staff and the medical garbage disposal staff in the follow-up operation are prevented from being pricked by the needle point, the risk of infectious diseases caused by occupational exposure is reduced, the life health of the medical staff and the medical garbage disposal staff is ensured, the operation is convenient, the structure is simple, the cost is low, and the popularization and the use are convenient; the protective sleeve 1 arranged on the puncture needle 2 can be used as a protective layer of the puncture needle before use and can be used as a primary fixing device of the elastic clamp 3 together with the saccule 4, and can also be used as a channel in some clinical scenes such as central venipuncture after needle withdrawal, so that the practicability is improved.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.
Claims (9)
1. The central venipuncture trocar with the protection device is characterized by comprising a needle cylinder, wherein a puncture needle is detachably arranged on the needle cylinder, and an elastic clamp is sleeved outside the puncture needle in a sliding manner;
the elastic clamp comprises a first clamping arm and a second clamping arm which are connected with each other;
and a through hole is formed in the center of the elastic clamp and between the first clamping arm and the second clamping arm.
2. The protective device center venipuncture trocar of claim 1 wherein said first clamping arm is obliquely staggered from said second clamping arm.
3. The protective device-equipped central venipuncture trocar of claim 1 wherein the ends of the first and second clamping arms are provided with limiting plates perpendicular to the first and second clamping arms.
4. The central venipuncture trocar with protection device according to claim 1, wherein the first clamping arm and the second clamping arm are symmetrically provided with semi-surrounding clamping rings.
5. The protective device center venipuncture trocar of claim 1 wherein said first clamping arm is integrally formed with said second clamping arm.
6. The protective device center venipuncture trocar as claimed in claim 1 wherein said spring clip is a metal or rigid plastic material with spring force.
7. The protective device-equipped central venipuncture trocar as claimed in claim 1, wherein said puncture needle is externally provided with a protective sheath.
8. The central venipuncture trocar with protection mechanism as recited in claim 7, wherein a hollow balloon is fixedly connected to an end of the protective sheath adjacent to the syringe, and the spring clip is disposed in the balloon.
9. The protective device center venipuncture trocar of claim 7 wherein said protective sheath is a soft plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320968937.2U CN220141770U (en) | 2023-04-26 | 2023-04-26 | Central venipuncture trocar with protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320968937.2U CN220141770U (en) | 2023-04-26 | 2023-04-26 | Central venipuncture trocar with protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220141770U true CN220141770U (en) | 2023-12-08 |
Family
ID=89011024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320968937.2U Active CN220141770U (en) | 2023-04-26 | 2023-04-26 | Central venipuncture trocar with protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220141770U (en) |
-
2023
- 2023-04-26 CN CN202320968937.2U patent/CN220141770U/en active Active
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