CN210631227U - Anti-needle-prick safety device - Google Patents
Anti-needle-prick safety device Download PDFInfo
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- CN210631227U CN210631227U CN201920891464.4U CN201920891464U CN210631227U CN 210631227 U CN210631227 U CN 210631227U CN 201920891464 U CN201920891464 U CN 201920891464U CN 210631227 U CN210631227 U CN 210631227U
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Abstract
The utility model belongs to the field of medical apparatus, in particular to a needle-prick prevention safety device, which comprises a shell, a needle handle connected with a needle tube, a base and an elastic card, wherein the shell is sleeved on the periphery of the needle handle and can generate relative displacement with the needle handle; the elastic clamping piece is hook-shaped, the rear end of the elastic clamping piece is a fixed end, the front end of the elastic clamping piece is a trigger blocking piece, the fixed end is fixed on the outer wall of the top of the shell, the shell is provided with an elongated slot, and the trigger blocking piece extends into the inner cavity of the shell through the elongated slot and tightly abuts against the needle handle under the elastic action of the elastic clamping piece; the tail end of the shell is provided with a through hole, the rear end of the needle handle penetrates out of the through hole at the tail end of the shell and then is provided with a base, and the base is used for blocking the shell; the anterior segment of needle handle is equipped with the limit structure that can prevent it from deviating from the terminal through-hole of shell, and this limit structure is located the rear of elasticity card. The utility model discloses simple structure, convenient operation can guarantee after the use that needle tubing and most advanced do not expose, avoids stabbing and cross infection to realize the safety function.
Description
Technical Field
The utility model relates to a prevent acupuncture safety device for collection or other medical clinical use of venous blood belongs to the medical instrument field.
Background
The pricking hazard of the needle point is more and more emphasized by hospitals and clinical medical care personnel, which is very easy to cause the infection of blood virus, the statistics shows that 80-90% of blood-borne infectious diseases of healthy medical personnel are caused by the pricking of the needle point, 80% of nurses of the pricked medical personnel account for, the safety problems of the medical personnel are more and more emphasized by the society and the hospitals, the research and development of medical instruments for preventing the needle puncture are more and more increased, and the developed instruments for preventing the needle puncture can effectively reduce the incidence of the infectious diseases, promote the infectious disease prevention work, reduce the major loss of various diseases to the economy and simultaneously reduce the harm to the health of the public. However, the current commercially available needle-stick injury prevention devices are generally complex in structure; and in the practical application in-process, there are a lot of needs medical staff to change original operation custom, need will prevent that the acupuncture device from moving to the syringe needle side and with the syringe needle cladding promptly, realize the protection, all need take solitary excitation action moreover for prevent that acupuncture device and syringe needle from taking place relative motion, finally reach the purpose of accomodating the syringe needle, the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art, and provides the anti-needling safety device which has simple structure and convenient operation and can accommodate the sharp end of the needle tube in the closed space after the needle is pulled out.
The utility model discloses a needle-prick prevention safety device, which comprises a shell, a needle handle connected with a needle tube, a base and an elastic clamping piece, wherein the shell is sleeved on the periphery of the needle handle and can generate relative displacement with the needle handle; the elastic clamping piece is hook-shaped, the rear end of the elastic clamping piece is a fixed end, the front end of the elastic clamping piece is a trigger blocking piece, the fixed end is fixed on the outer wall of the top of the shell, the shell is provided with a long groove, the trigger blocking piece extends into the inner cavity of the shell through the long groove and abuts against the needle handle (namely, a continuous pressure is applied to the needle handle) under the elastic action of the elastic clamping piece; the tail end of the shell is provided with a through hole, the rear end of the needle handle penetrates out of the through hole at the tail end of the shell and then is provided with a base, and the base is used for blocking the shell; the anterior segment of needle handle is equipped with the limit structure that can prevent it from deviating from the terminal through-hole of shell, and this limit structure is located the rear of elasticity card.
The elastic card in the anti-needling safety device of the utility model always tightly presses the needle handle (namely presses on the needle handle) in the initial state; when the needle head is required to be stored and operated, the shell is fixed by one hand, the base is held by the other hand to drive the needle handle to be pulled backwards together, the limiting structure at the front section of the needle handle reaches the through hole at the tail end of the shell and is blocked by the tail end of the shell, the needle handle cannot continue to move backwards, at the moment, the needle tube is completely pulled into the shell, in the process that the needle tube is pulled into the shell, when the tip of the needle tube is separated from the elastic clamping piece, the elastic clamping piece loses the external force effect, the needle tube automatically moves towards the inside of the needle tube under the self elastic effect, and the tip of the needle tube is completely blocked, so that the tip of the needle tube is completely sealed in.
According to the structure, after the anti-acupuncture safety device is started, the needle tube completely enters the inner cavity of the shell, the rear end of the needle tube is limited by the limiting structure, the front end (namely the tip) is blocked by the elastic clamping piece, the needle tube is guaranteed not to be exposed, the puncture and cross infection are avoided, and the safety and the health of medical staff are guaranteed.
Preferably, the limiting structure at the front section of the needle handle is a limiting ring with the outer diameter larger than the diameter of the through hole at the tail end of the shell.
Preferably, the front part of the shell is provided with a positioning groove for assembling the elastic card, and the rear part of the elastic card is fixedly arranged in the positioning groove. Further preferably, the outer wall of the front part of the shell is provided with a positioning seat, and the positioning groove is formed between the positioning seat and the shell. The positioning seat and the shell can be connected in a split mode or integrally formed.
Preferably, the distance from the tail end of the shell to the long groove is larger than the distance from the tip end of the needle tube to the limiting structure, so that the tip end of the needle tube can be accommodated in the shell and blocked by the elastic blocking piece.
The utility model provides an elasticity card can adopt the metal material, adopts elasticity metal card promptly.
In order to facilitate the handheld operation, an operating handle is arranged on the base, and the operating handle and the base can be integrally formed. Preferably, the gap is arranged between the operating handle and the needle handle, so that the tail end of the shell can be clamped into the gap between the operating handle and the needle handle, the shell is positioned before use, the shell is prevented from freely moving on the operating handle, the shell is separated from the base when the needle tip needs to be stored, at the moment, the shell is held by a hand, and the needle handle and the shell can be driven to move relatively by pulling the base so as to complete the needle tip storage operation.
Except that the base with the operating handle is adopted to position the shell in the initial state, the following technical scheme can be adopted: the inner circumference of the through hole at the tail end of the shell is provided with an arc convex rib; the diameter of the position of the back part of the needle handle opposite to the through hole at the tail end of the shell is larger than that of the front end of the needle handle; in the initial state, the position of the back part of the needle handle opposite to the through hole at the tail end of the shell and the arc convex rib are in interference fit. Through the structural design, the relative displacement between the shell and the needle handle can be ensured to be avoided (namely, the position of the shell is fixed) in the initial state, when the needle point needs to be stored, a region with a larger diameter (namely, the position of the rear part of the needle handle opposite to the tail end through hole of the shell) on the needle handle is separated from the arc convex rib on the inner periphery of the tail end through hole of the shell by using smaller force, so that the needle handle and the shell can be relatively displaced, and the subsequent needle point storage operation is the same as the above.
Compared with the prior art, the utility model beneficial effect who has is:
prevent acupuncture safety device simple structure, extract the needle operation back, medical staff need not to change original operation custom, with the fixed shell of a hand, another hold the base drive the needle handle stimulate backward together can, until the needle tubing is whole get into the shell inner chamber, because of the needle tubing rear end by limit structure restriction, front end (promptly most advanced) blockked by the elasticity card, consequently guarantee that needle tubing and most advanced do not expose, avoided stabbing and cross infection, guaranteed medical personnel's safety and health.
Drawings
FIG. 1 is a schematic view of an initial state of the first embodiment;
FIG. 2 is a schematic view of a needle cannula tip enclosed within a housing according to one embodiment;
FIG. 3 is a schematic structural diagram of a housing according to an embodiment;
FIG. 4 is a schematic view of the structure of the needle cannula and the needle handle according to one embodiment;
FIG. 5 is a schematic view of a structure of a flexible card;
FIG. 6 is a schematic view showing an initial state of the second embodiment;
fig. 7 is a partially enlarged view of the portion I in fig. 6.
In the figure: 1. a housing; 2. a needle handle; 3. a base; 4. an elastic card; 5. a needle tube; 6. an operating handle; 7. a gap; 8. a limiting ring; 9. a through hole; 10. positioning seats; 11. positioning a groove; 12. a long groove; 13. an arc convex rib; 14. the back of the needle handle is opposite to the through hole at the tail end of the shell.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings:
the first embodiment is as follows:
as shown in fig. 1-5, the safety device for preventing needle stick in this embodiment includes a housing 1, a needle handle 2 connected to a needle tube 5, a base 3 and an elastic clip 4, wherein the housing 1 is sleeved on the periphery of the needle handle 2 and can move relative to the needle handle 2; the elastic clamping piece 4 is hook-shaped, the rear end of the elastic clamping piece is a fixed end, the front end of the elastic clamping piece is a trigger blocking piece, the fixed end is fixed on the outer wall of the top of the shell 1, and the elastic clamping piece 4 in the embodiment is made of metal (namely, an elastic metal clamping piece); the shell 1 is provided with an elongated slot 12, the trigger blocking sheet extends into the inner cavity of the shell 1 through the elongated slot 12 and tightly supports the needle handle 2 (namely, the needle handle 2 is continuously pressed) under the elastic action of the elastic clamping sheet 4; the tail end of the shell 1 is provided with a through hole 9, the rear end of the needle handle 2 penetrates out of the through hole 9 at the tail end of the shell 1 and then is provided with the base 3, and the base 3 is used for blocking the shell 1; the anterior segment of needle handle 2 is equipped with the limit structure that can prevent it from deviating from the terminal through-hole 9 of shell 1, and the limit structure in this embodiment is the spacing ring 8 that the external diameter is greater than the terminal through-hole 9 diameter of shell 1, and it is located the rear of elasticity card 4. Wherein: the distance from the tail end of the shell 1 to the long groove 12 is larger than the distance from the tip of the needle tube 5 to the limiting structure, so that the tip of the needle tube 5 can be contained in the shell 1 and is blocked by the elastic blocking piece; the outer wall of the front part of the shell 1 is provided with a positioning seat 10, a positioning groove 11 for assembling the elastic clamping piece 4 is formed between the positioning seat 10 and the shell 1, the positioning and fixing at the rear part of the elastic clamping piece 4 is arranged in the positioning groove 11, and the positioning seat 10 and the shell 1 are integrally formed.
In order to facilitate the handheld operation, an operating handle 6 is arranged on the base 3, and the operating handle 6 and the base 3 can be integrally formed. Preferably, a gap 7 is formed between the operating handle 6 and the needle handle 2, so that the tail end of the shell 1 can be clamped into the gap 7 between the operating handle 6 and the needle handle 2, before the needle handle is used, the shell 1 is positioned, the shell 1 is prevented from freely moving on the operating handle 6, when the needle point needs to be stored, the shell 1 is separated from the base 3, at the moment, the shell 1 is held by a hand, the needle handle 2 can be driven to relatively move with the shell 1 by pulling the base 3, and therefore the needle point storage operation is completed.
The working principle and the process of the anti-needling safety device are as follows:
in the initial state, the elastic clamping piece 4 always tightly supports against the needle handle 2 (namely presses on the needle handle 2);
when the needle head needs to be stored, the shell 1 is fixed by one hand, the base 3 is held by the other hand to drive the needle handle 2 to be pulled backwards together until the limiting structure at the front section of the needle handle 2 reaches the through hole 9 at the tail end of the shell 1 and is blocked by the tail end of the shell 1, the needle handle 2 cannot move backwards continuously, at the moment, the needle tube 5 is completely pulled into the shell 1, in the process that the needle tube 5 is pulled into the shell 1, when the tip of the needle tube 5 is separated from the elastic clamping piece 4, the elastic clamping piece 4 loses the external force effect, the needle tube 5 automatically moves towards the inside of the needle tube 5 under the self elastic force effect, and the tip of the needle tube 5 is completely blocked, so that the tip of the needle tube 5 is completely sealed in the inner cavity of the shell.
Therefore, after the anti-acupuncture safety device is started, the needle tube 5 completely enters the inner cavity of the shell 1, the rear end of the needle tube 5 is limited by the limiting structure, and the front end (namely the tip) is blocked by the elastic clamping piece 4, so that the needle tube is ensured not to be exposed, the puncture and cross infection are avoided, and the safety function is realized.
Example two:
as shown in fig. 6 to 7, the safety device for preventing needle stick according to the present embodiment is additionally provided with the following structure on the basis of the first embodiment: an arc convex rib 13 is arranged on the inner periphery of the through hole 9 at the tail end of the shell, so that the diameter of a position 14, opposite to the through hole at the tail end of the shell, of the rear part of the needle handle is larger than that of the front end of the needle handle 2, and in an initial state, the position 14, opposite to the through hole at the tail end of the shell, of the rear part of the needle handle and the arc convex rib are in interference fit 13. By this structural design, it is possible to ensure that no relative displacement occurs between the housing 1 and the needle shaft 2 in the initial state (i.e., the position of the housing 1 is fixed).
When the needle point needs to be stored, a small force is used to separate the area with a larger diameter on the needle handle 2 (namely the position 14 at the rear part of the needle handle opposite to the through hole at the tail end of the shell) from the arc convex rib 13 at the inner periphery of the through hole 9 at the tail end of the shell, so that the needle handle 2 and the shell 1 can be relatively displaced, and the subsequent needle point storage operation is the same as the first embodiment.
Claims (10)
1. A kind of anti-needling safety device, characterized by: the needle comprises a shell (1), a needle handle (2) connected with a needle tube (5), a base (3) and an elastic clamping piece (4), wherein the shell (1) is sleeved on the periphery of the needle handle (2) and can generate relative displacement with the needle handle (2); the elastic clamping piece (4) is hook-shaped, the rear end of the elastic clamping piece is a fixed end (4.2), the front end of the elastic clamping piece is a trigger blocking piece (4.1), the fixed end (4.2) is fixed on the outer wall of the top of the shell (1), the shell (1) is provided with a long groove (12), the trigger blocking piece (4.1) extends into the inner cavity of the shell (1) through the long groove (12), and the trigger blocking piece is tightly propped against the needle handle (2) under the elastic action of the elastic clamping piece (4); the tail end of the shell (1) is provided with a through hole (9), the rear end of the needle handle (2) penetrates out of the through hole (9) at the tail end of the shell (1) and then is provided with the base (3), and the base (3) is used for blocking the shell (1); the anterior segment of needle handle (2) is equipped with the limit structure that can prevent it from deviating from shell end through-hole (9), and this limit structure is located the rear of elasticity card (4).
2. The needle stick prevention safety device of claim 1, wherein: the limiting structure at the front section of the needle handle (2) is a limiting ring (8) with the outer diameter larger than the diameter of the through hole at the tail end of the shell.
3. The needle stick prevention safety device of claim 1, wherein: the front part of the shell (1) is provided with a positioning groove (11) for assembling the elastic card, and the rear part of the elastic card (4) is fixedly arranged in the positioning groove (11).
4. The needle stick prevention safety device of claim 3, wherein: the outer wall of the front part of the shell (1) is provided with a positioning seat (10), and the positioning groove (11) is formed between the positioning seat (10) and the shell (1).
5. The needle stick prevention safety device of claim 4, wherein: the positioning seat (10) and the shell (1) are integrally formed.
6. A needlestick prevention safety device as claimed in any of claims 1 to 5, in which: the distance between the tail end of the shell (1) and the elongated slot (12) is larger than the distance between the tip of the needle tube (5) and the limiting structure.
7. A needlestick prevention safety device as claimed in any of claims 1 to 5, in which: the elastic card (4) is made of metal.
8. A needlestick prevention safety device as claimed in any of claims 1 to 5, in which: an operating handle (6) is arranged on the base (3).
9. The needle stick prevention safety device of claim 8, wherein: a gap (7) is arranged between the operating handle (6) and the needle handle (2).
10. A needlestick prevention safety device as claimed in any of claims 1 to 5, in which: the inner periphery of the through hole (9) at the tail end of the shell is provided with an arc convex rib (13); the diameter of the position (14) at the back of the needle handle opposite to the through hole at the tail end of the shell is larger than that of the front end of the needle handle (2); in the initial state, the position (14) of the back part of the needle handle opposite to the through hole at the tail end of the shell and the arc convex rib (13) are in interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920891464.4U CN210631227U (en) | 2019-06-12 | 2019-06-12 | Anti-needle-prick safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920891464.4U CN210631227U (en) | 2019-06-12 | 2019-06-12 | Anti-needle-prick safety device |
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| Publication Number | Publication Date |
|---|---|
| CN210631227U true CN210631227U (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920891464.4U Active CN210631227U (en) | 2019-06-12 | 2019-06-12 | Anti-needle-prick safety device |
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| CN (1) | CN210631227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588451A (en) * | 2020-06-01 | 2020-08-28 | 四川大学华西第二医院 | Push-injection pressurizing anti-suck-back double-cavity ovum taking needle with puncture protection device |
-
2019
- 2019-06-12 CN CN201920891464.4U patent/CN210631227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111588451A (en) * | 2020-06-01 | 2020-08-28 | 四川大学华西第二医院 | Push-injection pressurizing anti-suck-back double-cavity ovum taking needle with puncture protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 255086 No. 999, Zunxian Road, high tech Zone, Zibo City, Shandong Province Patentee after: Shandong ande medical supplies Co.,Ltd. Address before: No.77, North Road, development zone, high tech Zone, Zibo City, Shandong Province Patentee before: SHINVA ANDE HEALTHCARE APPARATUS Co.,Ltd. |
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| CP03 | Change of name, title or address |