CN219354901U

CN219354901U - Safety retaining needle

Info

Publication number: CN219354901U
Application number: CN202222551991.5U
Authority: CN
Inventors: 程基才
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-07-18
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of medical transfusion equipment, in particular to a safe remaining needle, which comprises a needle head assembly, an infusion connecting assembly, a communicating pipe and a clamp, wherein the needle head assembly comprises a cannula seat, a sealing plug and a puncture assembly in the cannula seat, a spring piece is arranged between the puncture assembly and the sealing plug, one end of the spring piece, which is close to the sealing plug, is fixedly connected with the cannula seat through a fixing frame, and a guide sleeve is arranged on the spring piece, so that the problems that the traditional remaining needle is easy to bend in the process of assembling due to overlong steel needle, the quality of a finished product is influenced, the blood return phenomenon can not be observed frequently in the needle inserting process, and meanwhile, the cannula seat moves towards a retreating position due to the reaction force of an inner needle in the puncture process, the puncture accuracy can not be ensured, and the puncture efficiency can not be ensured are solved.

Description

Safety retaining needle

Technical Field

The utility model relates to the technical field of medical transfusion equipment, in particular to a safe indwelling needle.

Background

The use of the detaining needle can reduce pain and fear of needle injection caused by repeated venipuncture of the child patient, lighten the dysphoria emotion of parents, facilitate clinical medication, rescue medication of emergency and critical patients, lighten the workload of nurses and reduce pain of the child patient, so that the detaining needle is widely applied clinically, and is a special group facing the child patient, the length of the detaining time of the detaining needle and the comfort of the child patient become the most concerned problems of nurses and parents, and are also the premise of successful use and popularization of the detaining needle.

The traditional remaining needle is in the equipment in-process because the steel needle overlength, and the needle threading process is crooked easily, influences finished product quality, causes the needle entering process often to appear can not observe the back blood phenomenon, and simultaneously at puncture in-process sleeve seat because the reaction force that the inner needle received moves towards the back position, can't guarantee the accuracy of puncture.

Disclosure of Invention

(one) solving the technical problems

In order to solve the problems in the prior art, the utility model provides the safe detaining needle, and solves the problems that the traditional detaining needle is easy to bend in the needle threading process due to overlong steel needles in the assembly process, the quality of finished products is influenced, the blood return phenomenon can not be observed frequently in the needle inserting process, and meanwhile, the sleeve seat moves towards the retreating position due to the reaction force of the inner needle in the puncturing process, the puncturing accuracy can not be ensured, and the puncturing efficiency can not be ensured.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

the safe remaining needle comprises a needle head assembly, an infusion connecting assembly, a communicating pipe and a clamp, wherein the needle head assembly comprises a sleeve seat, a sealing plug and a puncture assembly inside the sleeve seat, an elastic piece is arranged between the puncture assembly and the sealing plug, one end of the elastic piece, which is close to the sealing plug, is fixedly connected with the sleeve seat through a fixing frame, and a guide sleeve is arranged on the elastic piece. When the needle is assembled, the guide sleeve can play a role in guiding, so that the steel needle is prevented from being bent and deformed in the process of threading the needle too long, and the needle threading is facilitated.

Preferably, the elastic sheet is of an arc-shaped structure.

Preferably, the puncture assembly comprises an end cap, a steel needle and a handheld handle, a fixing seat for fixing the steel needle is arranged in the middle of the inner cavity of the end cap, a clamping block is further arranged between the fixing seat and the end cap, and a clamping groove matched with the clamping block for use is further formed in the joint of the sleeve seat and the end cap. In the process of puncturing, the puncture assembly is clamped on the sleeve seat, so that the sleeve seat can be prevented from moving towards the retreating position due to the reaction force of the inner needle in the puncturing process, the accuracy of puncturing is ensured, and the puncturing efficiency is improved.

Preferably, the steel needle sequentially passes through the guide sleeve, the sealing plug and extends to the outside of the needle head assembly.

Preferably, the infusion connection component is a three-way head, and a filtering membrane is further arranged at one end of the three-way head, which is close to the communicating pipe. The adoption of the filtering membrane can ensure the transfusion safety of patients.

Preferably, a protective sleeve is sleeved on the top of the needle head assembly and positioned outside the steel needle.

(III) beneficial effects

The utility model provides a safe indwelling needle. The beneficial effects are as follows:

(1) When the needle is assembled, the guide sleeve can play a role in guiding, so that the steel needle is prevented from being bent and deformed in the process of threading the needle too long, and the needle threading is facilitated.

(2) In the puncturing process, the puncturing assembly is clamped on the sleeve seat, so that the sleeve seat can be prevented from moving towards the retreating position due to the reaction force of the inner needle in the puncturing process, the puncturing accuracy is guaranteed, and the puncturing efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the needle assembly of the present utility model;

FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present utility model;

FIG. 4 is a cross-sectional view of a lancing assembly according to the present utility model;

FIG. 5 is a block diagram of a card slot according to the present utility model.

In the figure: 1. a needle assembly; 2. an infusion connection assembly; 3. a communicating pipe; 4. a clip; 101. a sleeve seat; 102. a sealing plug; 103. a puncture assembly; 5. a spring plate; 6. a fixing frame; 7. a guide sleeve; 1031. an end cap; 1032. a steel needle; 1033. a handle; 8. a fixing seat; 9. a clamping block; 10. a clamping groove; 11. and (5) a protective sleeve.

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.

As shown in fig. 1-5, the present utility model provides a technical solution: the safe indwelling needle comprises a needle head assembly 1, an infusion connecting assembly 2, a communicating pipe 3 and a clamp 4, wherein the needle head assembly 1 comprises a cannula seat 101, a sealing plug 102 and a puncture assembly 103 inside the cannula seat 101, a spring piece 5 is arranged between the puncture assembly 103 and the sealing plug 102, one end, close to the sealing plug 102, of the spring piece 5 is fixedly connected with the cannula seat 101 through a fixing frame 6, and a guide sleeve 7 is arranged on the spring piece 5. When the needle is assembled and threaded, the guide sleeve 7 can play a role in guiding, so that the steel needle 10 is prevented from being bent and deformed in the process of threading too long, and the needle threading is facilitated.

As a specific embodiment of the present utility model, the elastic sheet 5 has an arc structure.

As a specific embodiment of the present utility model, the puncture assembly 103 includes an end cap 1031, a steel needle 1032, and a hand-held handle 1033, a fixing seat 8 for fixing the steel needle 1032 is disposed in a middle position of an inner cavity of the end cap 1031, a clamping block 9 is further disposed between the fixing seat 8 and the end cap 1031, and a clamping groove 10 that is used in cooperation with the clamping block 9 is further disposed at a connection position between the cannula holder 101 and the end cap 1031. In the puncturing process, the puncturing assembly 103 is clamped on the sleeve seat 101, so that the sleeve seat 101 can be prevented from moving towards the retreating position due to the reaction force of the inner needle in the puncturing process, the puncturing accuracy is ensured, and the puncturing efficiency is improved.

As a specific embodiment of the present utility model, the steel needle 1032 passes through the guide sleeve 7, the sealing plug 102 and extends to the outside of the needle assembly 1 in sequence.

As a specific embodiment of the utility model, the infusion connection assembly 2 is a three-way head, and a filtering membrane is further arranged at one end of the three-way head, which is close to the communicating pipe 3. The adoption of the filtering membrane can ensure the transfusion safety of patients.

As an embodiment of the present utility model, the needle assembly 1 is provided with a protective sleeve 11 at the top and at a position outside the steel needle 1032.

Claims

1. The safe remaining needle comprises a needle head assembly (1), an infusion connecting assembly (2), a communicating pipe (3) and a clamp (4), and is characterized in that: needle subassembly (1) are including sleeve pipe seat (101), inside sealing plug (102) and puncture subassembly (103) of sleeve pipe seat (101), the position is provided with shell fragment (5) between puncture subassembly (103) and sealing plug (102), shell fragment (5) are close to sealing plug (102) one end and pass through mount (6) and sleeve pipe seat (101) fixed connection, be provided with uide bushing (7) on shell fragment (5).

2. The safety indwelling needle according to claim 1, wherein: the elastic sheet (5) is of an arc-shaped structure.

3. The safety indwelling needle according to claim 2, wherein: the puncture assembly (103) comprises an end cap (1031), a steel needle (1032) and a handheld handle (1033), a fixing seat (8) for fixing the steel needle (1032) is arranged at the middle position of the inner cavity of the end cap (1031), a clamping block (9) is further arranged between the fixing seat (8) and the end cap (1031), and a clamping groove (10) matched with the clamping block (9) for use is further formed in the joint of the sleeve seat (101) and the end cap (1031).

4. A safety indwelling needle according to claim 3, in which: the steel needle (1032) sequentially passes through the guide sleeve (7), the sealing plug (102) and extends to the outside of the needle head assembly (1).

5. The safety indwelling needle according to claim 4, wherein: the infusion connecting component (2) is a three-way head, and a filtering membrane is further arranged at one end of the three-way head, which is close to the communicating pipe (3).

6. The safety indwelling needle according to claim 5, wherein: the top of the needle head assembly (1) and the outer position of the steel needle (1032) are sleeved with a protective sleeve (11).