CN211460240U

CN211460240U - Safety blood taking needle

Info

Publication number: CN211460240U
Application number: CN201921828472.0U
Authority: CN
Inventors: 张文
Original assignee: Shandong Kerui Medical Supplies Co ltd
Current assignee: Shandong Kerui Medical Supplies Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-09-11
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a safe blood taking needle belongs to medical supplies technical field. A safety blood taking needle comprises a first barrel and a needle head, wherein the needle head is fixedly connected to the top wall of the first barrel, one end, away from the needle head, of the first barrel is connected with a hose, the outer wall of the first barrel is connected with a second barrel, a first groove is formed in the inner wall of the second barrel, a first rotating shaft is connected to the inner wall of the first groove, a first clamping block is connected to the outer wall of the first rotating shaft, a first elastic piece is sleeved on the outer wall of the first rotating shaft, two ends of the first elastic piece are connected to the inner wall of the first groove, and a clamping groove is formed in the outer wall of the first barrel; the utility model discloses not only can effectually avoid medical personnel to take place the condition of being stabbed when handling the blood taking needle after the use, but also can effectually avoid the blood taking needle after the use to be carried out recycle by lawless persons, and then the security performance of effectual increase blood taking needle.

Description

Safety blood taking needle

Technical Field

The utility model relates to the technical field of medical supplies, especially, relate to a safe blood taking needle.

Background

The blood taking needle is an instrument for collecting blood samples in the medical examination process and comprises a needle head and a needle rod, wherein the needle head is arranged at the head part of the needle rod, a protective sleeve is connected on the needle rod in a sliding way, a return spring is arranged between the protective sleeve and the needle rod, and the initial position of the protective sleeve is positioned at the head parts of the needle head and the needle rod.

The blood taking needle is a disposable blood taking device, therefore need handle after the blood sampling, adopt mostly among the prior art with syringe needle and needle bar separation then handle alone, but at the in-process of demolising the syringe needle, the condition that often takes place medical personnel and be stabbed, the work that leads to medical personnel has certain potential safety hazard, current blood taking needle is owing to not having the device of self-destruction moreover, consequently often by some lawless persons recycle, cause serious potential safety hazard to the personnel of seeing a doctor, therefore a safety blood taking needle is especially important.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a safe blood taking needle.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a safe blood taking needle, includes first barrel and syringe needle, syringe needle fixed connection is on the roof of first barrel, the one end that the syringe needle was kept away from to first barrel is connected with the hose, be connected with the second barrel on the first barrel outer wall, first recess has been dug on the second barrel inner wall, be connected with first axis of rotation on the first recess inner wall, be connected with first fixture block on the first axis of rotation outer wall, just first elastic component has been cup jointed on the first axis of rotation outer wall, the both ends of first elastic component are all connected on first recess inner wall, the draw-in groove has been dug on the first barrel outer wall.

Preferably, a second groove is further formed in the inner wall of the second barrel, a second rotating shaft is connected to the inner wall of the second groove, a second clamping block is connected to the outer wall of the second rotating shaft, a second elastic piece is connected to the outer wall of the second clamping block, and one end, far away from the second clamping block, of the second elastic piece is connected to the inner wall of the second groove.

Preferably, the outer wall of the second clamping block is further connected with a connecting rod, and one end, far away from the second clamping block, of the connecting rod penetrates through the second cylinder and extends outwards.

Preferably, the first elastic member is a torsion spring, and the second elastic member is a spring.

Preferably, the first clamping block and the second clamping block are matched with the clamping groove.

Preferably, be provided with the slider on the first barrel outer wall, cut on the second barrel inner wall have with slider assorted guide way, be connected with the boss on the first barrel outer wall, be connected with on the second barrel inner wall with boss assorted ka tai.

Compared with the prior art, the utility model provides a safe blood taking needle possesses following beneficial effect:

1. when the safety blood taking needle is not used, the clamping groove on the first barrel is clamped with the second clamping block, namely the second clamping block is clamped inside the clamping groove, the needle head is positioned inside the second barrel and is always clamped inside the clamping groove under the action of the elastic force of the second elastic part, when the safety blood taking needle is used, the connecting rod is pressed to drive the second clamping block to rotate, so that the second clamping block is driven to be separated from the clamping groove, then the first barrel is pushed towards the inside of the second barrel, when the safety blood taking needle is pushed to the bottom, the first barrel is rotated, and then the first barrel is stably fixed inside the second barrel under the action of the guide groove, the boss and the clamping table, meanwhile, the situation that the first barrel is completely pulled out of the second barrel can be effectively avoided through the arrangement of the guide groove, the needle head is positioned outside the second barrel, so that medical personnel can take blood conveniently, and after the blood taking is finished, the boss and the clamping table are staggered with each other by rotating the first barrel, then the first barrel is pulled upwards, when the clamping groove is pulled to a position matched with the first clamping block, the first barrel is stopped from being pulled, the first clamping block is driven to rotate and be clamped with the clamping groove with each other under the action of the elastic force of the first elastic piece, and the first rotating shaft is arranged at a position which is one fourth away from the bottom wall of the first groove, so that the first clamping block can only rotate between 90 degrees and 100 degrees, the first barrel cannot move downwards again, the blood taking needle is self-destructed and cannot be reused, thereby effectively avoiding the situation that lawless persons recycle the used blood taking needle to cause serious potential safety hazards, and meanwhile, by retracting the needle head into the second barrel, the needle head is not required to be dismantled and then respectively treated by medical staff, and then the condition that medical personnel take place to be stabbed when handling the blood taking needle after using has effectually been avoided, and then its potential safety hazard that causes medical personnel is effectually avoided to improve the security performance of blood taking needle.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses not only can effectually avoid medical personnel to take place the condition of being stabbed when handling the blood taking needle after the use, but also can effectually avoid the blood taking needle after the use to be carried out recycle by lawless persons, and then the security performance of effectual increase blood taking needle.

Drawings

FIG. 1 is a schematic structural view of a safety blood taking needle according to the present invention;

FIG. 2 is a schematic view of an explosion structure of a safety blood taking needle according to the present invention;

FIG. 3 is a schematic structural view of the interior of the second cylinder of the safety blood taking needle of the present invention;

FIG. 4 is an enlarged view of the portion A in FIG. 2 of a connection block of a safety blood collection needle according to the present invention;

fig. 5 is an enlarged view of a portion B in fig. 3 of a connection block of a safety blood collection needle according to the present invention.

In the figure: 1. a first cylinder; 101. a needle head; 102. a hose; 103. a card slot; 2. a second cylinder; 201. a first groove; 202. a first rotating shaft; 203. a first clamping block; 204. a first elastic member; 205. a second groove; 206. a second rotating shaft; 207. a second fixture block; 208. a second elastic member; 209. a connecting rod; 3. a slider; 301. a guide groove; 302. a boss; 303. and (7) clamping the table.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, a safety blood taking needle comprises a first barrel body 1 and a needle 101, the needle 101 is fixedly connected to the top wall of the first barrel body 1, one end of the first barrel body 1, which is far away from the needle 101, is connected with a hose 102, the outer wall of the first barrel body 1 is connected with a second barrel body 2, a first groove 201 is cut on the inner wall of the second barrel body 2, a first rotating shaft 202 is connected to the inner wall of the first groove 201, a first clamping block 203 is connected to the outer wall of the first rotating shaft 202, a first elastic part 204 is sleeved on the outer wall of the first rotating shaft 202, two ends of the first elastic part 204 are connected to the inner wall of the first groove 201, and a clamping groove 103 is cut on the outer wall of the first barrel body.

A second groove 205 is further formed in the inner wall of the second cylinder 2, a second rotating shaft 206 is connected to the inner wall of the second groove 205, a second clamping block 207 is connected to the outer wall of the second rotating shaft 206, a second elastic member 208 is connected to the outer wall of the second clamping block 207, and one end, away from the second clamping block 207, of the second elastic member 208 is connected to the inner wall of the second groove 205.

The outer wall of the second latch 207 is further connected with a connecting rod 209, and one end of the connecting rod 209, which is far away from the second latch 207, passes through the second cylinder 2 and extends outwards.

The first elastic member 204 is specifically a torsion spring, and the second elastic member 208 is specifically a spring.

The first and

second latches

203 and 207 are each mated with the latch slot 103.

Be provided with slider 3 on the first barrel 1 outer wall, cut on the 2 inner walls of second barrel have with slider 3 assorted guide way 301, be connected with boss 302 on the first barrel 1 outer wall, be connected with on the 2 inner walls of second barrel with boss 302 assorted ka tai 303.

When the syringe is not used, the clamping groove 103 on the first barrel 1 is clamped with the second clamping block 207, namely the second clamping block 207 is clamped inside the clamping groove 103, the needle 101 is positioned inside the second barrel 2 and is always clamped inside the clamping groove 103 under the action of the elastic force of the second elastic element 208, when the syringe is used, the second clamping block 207 is driven to rotate by pressing the connecting rod 209, so that the second clamping block 207 is driven to be separated from the clamping groove 103, then the first barrel 1 is pushed towards the inside of the second barrel 2, when the syringe is pushed to the bottom, the first barrel 1 is rotated, and the first barrel 1 is stably fixed inside the second barrel 2 under the action of the guide groove 301, the boss 302 and the clamping table 303, meanwhile, the situation that the first barrel 1 is completely pulled out of the second barrel 2 can be effectively avoided through the arrangement of the guide groove 301, and the needle 101 is positioned outside the second barrel 2, and then the medical staff can take blood conveniently, after the blood taking is finished, the boss 302 and the clamping platform 303 are staggered with each other by rotating the first cylinder body 1, then the first cylinder body 1 is pulled upwards, when the clamping groove 103 is pulled to the position matched with the first clamping block 203, the first cylinder body 1 is stopped being pulled, under the action of the elastic force of the first elastic piece 204, the first clamping block 203 is driven to rotate and is clamped with the clamping groove 103, and the first rotating shaft 202 is arranged at the quarter of the bottom wall of the first groove 201, so that the first clamping block 203 can only rotate between 90 degrees and 100 degrees, the first cylinder body 1 can not move downwards again, the blood taking needle can be self-destructed and can not be used for a second time, thereby effectively avoiding serious potential safety hazard caused by recycling of lawless persons to the used blood taking needle, and simultaneously, through retracting syringe needle 101 inside second barrel 2, and then do not need medical personnel to demolish syringe needle 101 and then handle respectively, and then the effectual condition of having avoided medical personnel to take place to be stabbed when handling the blood taking needle after the use, and then the effectual potential safety hazard that causes medical personnel of avoiding it to improve the security performance of blood taking needle.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a safety blood taking needle, includes first barrel (1) and syringe needle (101), its characterized in that, syringe needle (101) fixed connection is on the roof of first barrel (1), the one end that syringe needle (101) were kept away from in first barrel (1) is connected with hose (102), be connected with second barrel (2) on first barrel (1) outer wall, first recess (201) have been dug on second barrel (2) inner wall, be connected with first rotation axis (202) on first recess (201) inner wall, be connected with first fixture block (203) on first rotation axis (202) outer wall, just first elastic component (204) have been cup jointed on first rotation axis (202) outer wall, the both ends of first elastic component (204) all are connected on first recess (201) inner wall, a draw-in groove (103) has been dug on first barrel (1) outer wall.

2. A safety lancet according to claim 1, wherein a second groove (205) is further formed in the inner wall of the second barrel (2), a second rotating shaft (206) is connected to the inner wall of the second groove (205), a second clamping block (207) is connected to the outer wall of the second rotating shaft (206), a second elastic member (208) is connected to the outer wall of the second clamping block (207), and one end of the second elastic member (208) far away from the second clamping block (207) is connected to the inner wall of the second groove (205).

3. A safety lancet according to claim 2, wherein a connecting rod (209) is further connected to the outer wall of the second latch (207), and one end of the connecting rod (209) far away from the second latch (207) passes through the second cylinder (2) and extends outwards.

4. A safety lancet according to claim 3, characterised in that the first resilient member (204) is embodied as a torsion spring and the second resilient member (208) is embodied as a spring.

5. A safety lancet according to claim 4, wherein the first (203) and second (207) catches mate with a catch (103).

6. A safety blood taking needle according to claim 1, characterized in that the outer wall of the first cylinder (1) is provided with a slide block (3), the inner wall of the second cylinder (2) is provided with a guide groove (301) matched with the slide block (3), the outer wall of the first cylinder (1) is connected with a boss (302), and the inner wall of the second cylinder (2) is connected with a clamping platform (303) matched with the boss (302).