CN219000305U

CN219000305U - Blood drawing device for preventing needle puncture

Info

Publication number: CN219000305U
Application number: CN202222790846.2U
Authority: CN
Inventors: 杨婷; 周玲; 张瑜
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-05-12
Anticipated expiration: 2032-10-20

Abstract

The utility model relates to the technical field of medical appliances, and discloses a blood drawing device for preventing needle puncture, which comprises a vacuum tube, a needle cylinder in threaded connection with the vacuum tube and springs connected to two ends of the interior of the needle cylinder, wherein one end of the needle cylinder is in threaded connection with a disassembling head, a blood taking needle is sleeved in the needle cylinder, a blood transfusion needle is sleeved in one end of the blood taking needle, a group of positioning rings are connected to the exterior of the blood taking needle, which is close to one end of the blood taking needle, a front pushing block is arranged between the positioning rings, a group of limiting rings are connected to the exterior of the blood taking needle, which is close to one end of the blood taking needle, and a rear pushing block is arranged between the limiting rings. This kind of prevent blood drawing device of needle puncture, when using this blood drawing device, need handle it, will dismantle first to twist first and lift off earlier, take out blood taking needle, preceding ejector pad, back ejector pad and blood transfusion needle from the cylinder afterwards, then place separately according to the requirement wait to handle can for the step of syringe needle separation is simpler, reduces the processing degree of difficulty effectively.

Description

Blood drawing device for preventing needle puncture

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a blood drawing device for preventing needle puncture.

Background

Blood drawing machines are devices used by medical institutions to draw blood, the most common medical items in nursing work.

Through retrieving, chinese patent application number is CN 201922025372.0's patent discloses a prevent syringe that needle was stabbed, belong to medical appliances technical field, its technical essential includes vacuum tube and mechanism of drawing blood, vacuum tube one end is equipped with the rubber end cap, the mechanism of drawing blood includes the cylinder subassembly, be equipped with first syringe needle in the cylinder subassembly, the second syringe needle, first spring and second spring, be equipped with first sliding block on the first syringe needle, be equipped with the second sliding block on the second syringe needle, first syringe needle, the second syringe needle slides through first sliding block respectively, the second sliding block is connected in the cylinder subassembly, first syringe needle slides with the second syringe needle and is connected and communicates, first spring, the second spring cup joints respectively on first syringe needle, on the second syringe needle, first sliding block side, second sliding block side fixedly connected with first driving block respectively, the second driving block, the cylinder subassembly side is equipped with the sliding groove that can lock first driving block and second driving block. The present utility model is directed to a blood pump for preventing needle stick injuries for drawing and storing blood from a patient. The blood drawing device for preventing needle stick injuries in the above patent has the following disadvantages:

according to medical household garbage classification regulations, after the medical household garbage classification regulations are used, the needle head is required to be separated and placed in the damaged waste, so that the blood drawing device is also required to be separated after being used, and the syringe body of the blood drawing device is of an integrated structure, so that the syringe cannot be directly opened, and the needle head positioned in the syringe is difficult to detach from the sliding block.

This makes needle separation of the blood pump difficult and increases the handling difficulties.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a hemospast for preventing needle puncture so as to solve the problems of the background technology, so that the needle head is simple to separate, and the treatment difficulty is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a prevent hemospast of needle puncture, includes the vacuum tube, with the cylinder of vacuum tube threaded connection and connect the spring at the inside both ends of cylinder, the one end threaded connection of cylinder has the dismantlement head, the inside cover of cylinder is equipped with the blood taking needle, the inside cover of blood taking needle one end is equipped with the blood transfusion needle, the outside that the blood taking needle is close to blood transfusion needle one end has a set of holding ring, be equipped with the push block between the holding ring, the outside that the blood transfusion needle is close to blood taking needle one end has a set of spacing ring, be equipped with the push block after between the spacing ring, the spout has all been seted up to the top and the bottom of cylinder.

Preferably, the tops and bottoms of the front pushing block and the rear pushing block are both in threaded connection with threaded columns.

Preferably, the structure of the front pushing block is the same as that of the rear pushing block, the front pushing block comprises a left module and a right module, the left module and the right module are matched with each other, and the top and the bottom of the left module and the right module are provided with threaded holes.

Preferably, a round angle is formed at the outer side edge of the front pushing block.

Preferably, the outer wall of the threaded column is provided with anti-skid threads, and the anti-skid threads on the outer surface of the threaded column are inclined at 45 degrees.

Compared with the prior art, the utility model has the following beneficial effects:

this kind of prevent blood drawing device of needle puncture, when using this blood drawing device, need handle it, will dismantle first to twist first and lift off earlier, take out blood taking needle, preceding ejector pad, back ejector pad and blood transfusion needle from the cylinder afterwards, then place separately according to the requirement wait to handle can for the step of syringe needle separation is simpler, reduces the processing degree of difficulty effectively.

Drawings

FIG. 1 is a cross-sectional view of the entirety of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure of the present utility model A;

FIG. 3 is a schematic view of the overall structure of the present utility model;

fig. 4 is a schematic structural view of the push block of the present utility model.

In the figure: 1. a vacuum tube; 2. a needle cylinder; 3. disassembling the head; 4. a blood taking needle; 5. a blood transfusion needle; 6. a positioning ring; 7. a limiting ring; 8. a front pushing block; 9. a rear pushing block; 10. a left module; 11. a right module; 12. and (5) a threaded column.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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 be within the scope of the utility model.

Examples

Referring to fig. 1-4, a hemospast for preventing puncture of needle comprises a vacuum tube 1, a needle cylinder 2 in threaded connection with the vacuum tube 1 and springs connected to two ends inside the needle cylinder 2, one end of the needle cylinder 2 is in threaded connection with a disassembling head 3, a blood taking needle 4 is sleeved inside the needle cylinder 2, a blood transfusion needle 5 is sleeved inside one end of the blood taking needle 4, a group of positioning rings 6 are connected to the outside of one end of the blood taking needle 4, a front pushing block 8 is arranged between the positioning rings 6, a group of limiting rings 7 are connected to the outside of one end of the blood taking needle 5, a rear pushing block 9 is arranged between the limiting rings 7, and sliding grooves are formed in the top and the bottom of the needle cylinder 2.

When the blood drawing device for preventing needle puncture is used and needs to be classified, the disassembly head 3 is rotated firstly, the disassembly head 3 is unscrewed, then the blood taking needle 4, the blood transfusion needle 5, the front push block 8 and the rear push block 9 in the needle cylinder 2 are all taken out, then the front push block 8 and the rear push block 9 are respectively separated from the blood taking needle 4 and the blood transfusion needle 5, and then various medical wastes are classified according to the medical household garbage classification regulation, because the needle cylinder 2 part of the blood drawing device can be disassembled, the blood taking needle 4 and the blood transfusion needle 5 are conveniently taken out from the needle cylinder 2, the difficulty of medical staff in treating the blood drawing device is reduced, meanwhile, the blood taking needle 4 and the positioning ring 6 are connected and fixed in an adhesive mode, the blood transfusion needle 5 and the limiting ring 7 are connected and fixed in an adhesive mode, and the fixing mode is simple and firm, and in addition, the vacuum tube 1, the needle cylinder 2 and a spring positioned in the needle cylinder 2 belong to the original structure in the patent application number CN 201922025372.0.

Further, as shown in fig. 1 and 4, the top and bottom of the front push block 8 and the rear push block 9 are each screwed with a threaded post 12. When pushing the front push block 8 and the rear push block 9 to move, the screw thread column 12 can be used for pushing, the pushing is more labor-saving, and when disassembling, the screw thread column 12 is in threaded connection with the front push block 8 and the rear push block 9, so that the front push block 8 and the rear push block 9 can be taken down from the needle cylinder 2 only by unscrewing the screw thread column 12, and the taking-out mode is simple and easy to operate.

Further, as shown in fig. 1 and 4, the front push block 8 and the rear push block 9 have the same structure, the front push block 8 includes a left module 10 and a right module 11, the left module 10 and the right module 11 are matched with each other, and the top and bottom of the left module 10 and the right module 11 are provided with threaded holes. After the threaded column 12 is unscrewed, the front pushing block 8 and the left module 10 and the right module 11 slide to two sides, so that the front pushing block 8 is taken down from the blood taking needle 4, the disassembling and separating mode is simple, the operation is easy, and the separating difficulty can be effectively reduced.

Further, as shown in fig. 4, a rounded corner is formed at the outer edge of the front push block 8. When the front push block 8 is taken out of the needle cylinder 2, the round corners have certain guiding performance, so that the front push block 8 is taken out of the needle cylinder 2 more simply and conveniently.

Further, as shown in fig. 1 and 4, the outer wall of the threaded column 12 is provided with anti-skid threads, and the anti-skid threads on the outer surface of the threaded column 12 are inclined at 45 degrees. The friction force on the surface of the threaded column 12 can be increased by the anti-skid lines, so that the phenomenon of skid cannot occur when the threaded column 12 is screwed, meanwhile, the anti-skid lines are inclined by 45 degrees, the arrangement of the anti-skid lines is more compact, and the anti-skid effect is better.

Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent hemospast of needle puncture, includes vacuum tube (1), needle cylinder (2) with vacuum tube (1) threaded connection and connect the spring at the inside both ends of needle cylinder (2), a serial communication port, the one end threaded connection of needle cylinder (2) has dismantlement head (3), the inside cover of needle cylinder (2) is equipped with blood taking needle (4), the inside cover of blood taking needle (4) one end is equipped with blood transfusion needle (5), the outside that blood taking needle (4) is close to blood transfusion needle (5) one end has a set of holding ring (6), be equipped with push away piece (8) between holding ring (6), the outside that blood transfusion needle (5) is close to blood taking needle (4) one end is connected with a set of spacing ring (7), be equipped with back push piece (9) between spacing ring (7), the spout has all been seted up to the top and the bottom of needle cylinder (2).

2. A blood drawing device for preventing needle stick injury according to claim 1, wherein the top and bottom of the front push block (8) and the rear push block (9) are both screwed with threaded posts (12).

3. The blood drawing device for preventing needle stick injury according to claim 1, wherein the front push block (8) and the rear push block (9) have the same structure, the front push block (8) comprises a left module (10) and a right module (11), the left module (10) and the right module (11) are matched with each other, and the top and the bottom of the left module (10) and the right module (11) are provided with threaded holes.

4. A blood drawing device for preventing needle stick injury according to claim 1, wherein the outer edge of the front pushing block (8) is provided with a round corner.

5. The blood drawing device for preventing needle stick injury according to claim 2, wherein the outer wall of the threaded column (12) is provided with anti-skid threads, and the anti-skid threads on the outer surface of the threaded column (12) are inclined at 45 degrees.