CN216908814U

CN216908814U - High pressure resistant type prevents acupuncture needle of keeping somewhere

Info

Publication number: CN216908814U
Application number: CN202122859945.7U
Authority: CN
Inventors: 王友超; 乔小红; 邵蕊娜; 任晓培
Original assignee: Shengguang Medical Instrument Co ltd
Current assignee: Shengguang Medical Instrument Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-07-08
Anticipated expiration: 2031-11-22

Abstract

The utility model provides a high-pressure resistant anti-acupuncture remaining needle, which comprises a needle tube assembly, a catheter assembly and an infusion assembly, wherein the catheter assembly and the infusion assembly are connected through an extension tube, the catheter assembly comprises a catheter seat, a rivet and an isolating plug are arranged in an inner cavity of the catheter seat, a blocking piece is arranged at the rear part of the isolating plug, the extension tube is a hard pressure-resistant tube made of polyurethane materials and can bear the pressure of 300psi, and the needle tube assembly penetrates through an anti-acupuncture device and is inserted into the catheter assembly. The utility model improves the pressure resistance of the product through the design of the blocking piece and the pressure resistance extension tube, avoids medical personnel from being injured by acupuncture through the adoption of the acupuncture-preventing device, and has the advantages of reasonable product structural design, simple process, easy operation and convenient use.

Description

High pressure resistant type prevents that acupuncture stays needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a high-pressure-resistant anti-acupuncture remaining needle.

Background

The venous indwelling needle establishes a venous channel for a patient, is suitable for the patient with long-term infusion, prevents the patient from suffering from repeated puncture, is convenient for rescue, and is widely accepted and applied clinically.

At present, after a patient is punctured by adopting vein indwelling and blood returns, a nursing staff clinically sends a puncture needle tube and an indwelling catheter into a blood vessel, and then withdraws the puncture needle tube to place the indwelling catheter in the blood vessel.

CT and magnetic resonance enhanced scanning are common image examination means in clinic at present, and the enhanced result shows that the absorption difference between the pathological change tissue and the normal tissue is increased, so that the detection rate of small focuses is greatly improved. Because the traditional scalp steel needle is poor in comfort level and prone to causing imaging agent leakage to cause scanning failure, unnecessary pain is brought to patients, and therefore a venous indwelling needle is clinically used and matched with a high-pressure injector to carry out enhanced scanning on the patients.

Because the steel needle core diameter of the vein indwelling needle is small, the outer sleeve is soft, the tube wall is thin, and the tube cavity is large, the high flow speed, the high flow rate and the high pressure of the contrast agent can be ensured to enter the blood vessel, the rapid bolus injection can be kept during the high-pressure injection, the effective concentration of the contrast agent is ensured, and the quality and the diagnosis effect of perfusion imaging are ensured.

The existing high-pressure resistant type remaining needle has poor design effect of a pressure-resistant structure of a component. Because the contrast agent is injected at a high speed and under high pressure, if the pressure-resistant design effect of the indwelling needle component is poor, the isolating plug of the indwelling needle may rush out of the catheter seat under high pressure, and the extension tube may also have a risk of tube explosion due to over-high pressure, thereby affecting the treatment of the patient.

Therefore, the development of the high pressure resistant indwelling needle with good high pressure resistant effect, convenient use, safety and comfort is of great significance.

On the other hand, the common venous indwelling needle has the risk of puncture injury of the needle tip. According to related reports, 60-80 million persons with stabbing or skin injury in staff in the hygiene industry every year, wherein the main victimization group is nurses who are injured by acupuncture, and the number of persons infected by hepatitis B, hepatitis C, AIDS and other blood-borne diseases after acupuncture is on an increasing trend. Under the conditions that medical staff first aid a critical patient and the patient is not matched, the patient is easy to stab and directly suffer from blood pollution if careless.

Therefore, it is very important to develop an indwelling needle which not only has good high pressure resistance effect, but also has a needle head protection system and can prevent needle stick injury.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the high-pressure resistant anti-needle-prick remaining needle which not only can improve the pressure resistance, but also has the anti-needle-prick function, and is convenient to use, safe and reliable.

The utility model provides a needle stick indwelling needle is prevented to high pressure resistant type, includes needle tubing subassembly, catheter subassembly and infusion subassembly, and catheter subassembly and infusion subassembly are connected through the extension pipe, the catheter subassembly includes the pipe seat, is provided with rivet and isolating plug in the inner chamber of pipe seat, its characterized in that: the rear part of the isolating plug is provided with a blocking piece, the blocking piece comprises a blocking piece front end, a blocking piece middle end and a blocking piece rear end which are integrally formed, the blocking piece front end, the blocking piece middle end and the blocking piece rear end are coaxially arranged, the outer diameters of the blocking piece front end and the blocking piece rear end are the same, the outer diameter of the blocking piece middle end is smaller than the outer diameters of the blocking piece front end and the blocking piece rear end, the peripheries of the blocking piece front end and the blocking piece rear end are in contact with the inner wall of the catheter seat, the periphery of the blocking piece middle end and the inner wall of the catheter seat form an annular channel, the catheter seat is provided with a sprue for filling UV glue into the annular channel, the blocking piece is stably fixed in the catheter seat through the sprue to limit the isolating plug, and the blocking piece is axially provided with a through hole which is used for the blocking piece to penetrate through the front end, the blocking piece middle end and the blocking piece rear end and is convenient to insert the needle tube, the through-hole is the circular port, the through-hole diameter that blocks the front end, blocks the piece rear end is greater than the through-hole diameter that blocks the piece middle-end, the through-hole diameter that blocks the piece front end and block the piece rear end is the same.

In particular, a rigid pressure resistant tube, made of polyurethane material, that can withstand 300psi pressure.

Specifically, the needle tube assembly comprises a needle tube and a needle seat, and the catheter assembly further comprises a catheter sleeved on the rivet and a protective sleeve sleeved on the catheter seat.

Specifically, the needle cannula assembly is inserted through the needle stick prevention device into the catheter assembly.

Specifically, the infusion set includes two-way and positive pressure needle-free connectors.

Specifically, the extension pipe is provided with a flow stopping clamp.

Specifically, the middle end of the isolating plug is an annular groove, a UV adhesive layer is arranged between the annular groove and the inner cavity wall of the catheter base, and the UV adhesive layer is respectively bonded with the periphery of the middle end of the isolating plug and the inner cavity wall of the catheter base and used for stably fixing the isolating plug in the catheter base.

Specifically, a pouring port for pouring UV glue is arranged at the contact position of the catheter seat and the middle end of the isolating plug.

Compared with the prior art, the utility model has the following advantages:

1. the blocking piece is arranged, so that the isolating plug can be well fixed, the isolating plug is prevented from popping out under high pressure, and the pressure borne by the inner cavity of the catheter base is improved;

2. the design of the pressure-resistant extension pipe can improve the bearable pressure of the pipeline and prevent pipe explosion and liquid leakage;

3. the adoption of the anti-acupuncture device avoids the medical staff from being injured by acupuncture;

4. reasonable design, simple process, easy operation and convenient use.

Drawings

The utility model is further illustrated by the following examples in conjunction with the drawings.

FIG. 1 is a schematic structural view of a high pressure resistant anti-needle-punching indwelling needle according to the present invention;

FIG. 2 is a left side view of the blocking member of the high pressure resistant type anti-needle-stick indwelling needle according to the present invention;

FIG. 3 is a perspective view of a high pressure resistant anti-needle stick retention needle barrier of the present invention;

description of reference numerals: 1-catheter, 2-catheter hub, 3-rivet, 4-septum, 5-stop, 51-stop front, 52-stop back, 53-through hole, 54-stop middle, 6-needle tube, 7-needling prevention device, 8-needle hub, 9-stop clamp, 10-extension tube, 11-two-way, 12-positive pressure needleless connector, 13-protective sleeve.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings.

The utility model provides a needle stick indwelling needle is prevented to high pressure resistant type, includes needle tubing assembly, catheter subassembly and infusion subassembly, and catheter subassembly and infusion subassembly are connected through extension pipe 10, the catheter subassembly includes catheter holder 2, is provided with rivet 3 and isolating plug 4 in the inner chamber of catheter holder 2, its characterized in that: the rear part of the isolating plug 4 is provided with a blocking piece 5, the blocking piece 5 comprises a blocking piece front end 51, a blocking piece middle end 54 and a blocking piece rear end 52 which are integrally formed, the blocking piece front end 51, the blocking piece middle end 54 and the blocking piece rear end 52 are coaxially arranged, the outer diameters of the blocking piece front end 51 and the blocking piece rear end 52 are the same, the outer diameter of the blocking piece middle end 54 is smaller than the outer diameters of the blocking piece front end 51 and the blocking piece rear end 52, the peripheries of the blocking piece front end 51 and the blocking piece rear end 52 are in contact with the inner wall of the catheter base 2, the periphery of the blocking piece middle end 54 and the inner wall of the catheter base 2 form an annular channel, the catheter base is provided with a gate for filling UV glue into the annular channel, the blocking piece 5 is stably fixed in the catheter base through the UV glue injected into the annular channel through the gate to limit the isolating plug 4, and the blocking piece 5 is axially provided with a hole penetrating through the front end 51, the blocking piece rear end 54 and the blocking piece rear end 52, The through holes 53 of the blocking piece middle end 54 and the blocking piece rear end 52 are conveniently inserted into the needle tube 6, the through holes 53 are circular holes, the through hole diameters of the blocking piece front end 51 and the blocking piece rear end 52 are larger than the through hole diameter of the blocking piece middle end 54, and the through hole diameters of the blocking piece front end 51 and the blocking piece rear end 52 are the same. Through the design that the periphery of the middle end 54 of the blocking part and the inner wall of the catheter seat 2 form an annular channel, the blocking part 5 can be fixed in the catheter seat by injecting UV glue, and the technical problem of poor pressure resistance in the prior art can be effectively solved.

Specifically, the extension tube 10 is a rigid pressure resistant tube made of polyurethane material, which can withstand 300psi pressure.

Specifically, the needle assembly includes a needle 6 and a hub 8, and the catheter assembly further includes a catheter 1 mounted on the rivet and a protective sheath 13 mounted on the catheter hub.

Specifically, the needle cannula assembly is inserted into the catheter assembly through the needle stick prevention device 7.

Specifically, the infusion set includes a two-way 11 and a positive pressure needle-free connector 12.

Specifically, the extension pipe 10 is provided with a flow stopping clip 9.

Specifically, the middle end of the isolating plug is an annular groove, a UV adhesive layer is arranged between the annular groove and the inner cavity wall of the catheter base 2, and the UV adhesive layer is respectively bonded with the periphery of the middle end of the isolating plug and the inner cavity wall of the catheter base 2 and is used for stably fixing the isolating plug 4 in the catheter base.

The present invention is not limited to the above embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims

1. The utility model provides a needle stick indwelling needle is prevented to high pressure resistant type, includes needle tubing assembly, catheter subassembly and infusion subassembly, and catheter subassembly and infusion subassembly are connected through extension pipe (10), the catheter subassembly includes catheter holder (2), is provided with rivet (3) and isolating plug (4) in the inner chamber of catheter holder (2), its characterized in that: the rear part of the isolating plug (4) is provided with a blocking part (5), the blocking part (5) comprises a blocking part front end (51), a blocking part middle end (54) and a blocking part rear end (52) which are integrally formed, the blocking part front end (51), the blocking part middle end (54) and the blocking part rear end (52) are coaxially arranged, the outer diameters of the blocking part front end (51) and the blocking part rear end (52) are the same, the outer diameter of the blocking part middle end (54) is smaller than the outer diameters of the blocking part front end (51) and the blocking part rear end (52), the peripheries of the blocking part front end (51) and the blocking part rear end (52) are in contact with the inner wall of the catheter base (2), an annular channel is formed by the periphery of the blocking part middle end (54) and the inner wall of the catheter base (2), a pouring gate for pouring UV glue into the annular channel is arranged on the catheter base, the UV glue is poured into the annular channel, the blocking part (5) is stably fixed in the catheter base through the pouring gate, and the UV glue is used for limiting the isolating plug (4) The utility model discloses a syringe needle (6) is convenient for insert through blocking piece front end (51), blocking piece middle-end (54), blocking piece rear end (52) through-hole (53) have been seted up along the axial to piece (5), and through-hole (53) that through blocked piece front end (51), blocking piece middle-end (54), blocking piece rear end (52), through-hole diameter that blocks piece front end (51), blocking piece rear end (52) is greater than the through-hole diameter that blocks piece middle-end (54), the through-hole diameter that blocks piece front end (51) and blocking piece rear end (52) is the same.

2. The high pressure resistant type needle-prick prevention indwelling needle according to claim 1, wherein: the rear part of the isolating plug (4) is in contact with the front end (51) of the blocking piece.

3. The high pressure resistant anti-needle-stick indwelling needle of claim 2, wherein: the extension tube (10) is a rigid pressure resistant tube made of polyurethane material and can withstand 300psi pressure.

4. The high pressure resistant anti-needle-stick indwelling needle of claim 3, wherein: the needle tube component comprises a needle tube (6) and a needle seat (8), and the catheter component also comprises a catheter (1) sleeved on the rivet and a protective sleeve (13) sleeved on the catheter seat.

5. The high pressure resistant anti-needle-stick indwelling needle according to claim 4, wherein: the needle cannula assembly is inserted through a needle stick prevention device (7) into the catheter assembly.

6. The high pressure resistant anti-needle-stick indwelling needle of claim 5, wherein: the infusion set comprises a two-way (11) and a positive pressure needle-free connector (12).

7. The high pressure resistant anti-needle-stick indwelling needle of claim 6, wherein: the extension pipe (10) is provided with a flow stopping clip (9).

8. The high pressure resistant anti-needle-stick indwelling needle of claim 7, wherein: the middle end of the isolating plug is an annular groove, a UV adhesive layer is arranged between the annular groove and the inner cavity wall of the catheter seat (2), and the UV adhesive layer is respectively bonded with the periphery of the middle end of the isolating plug and the inner cavity wall of the catheter seat (2) and used for stably fixing the isolating plug (4) in the catheter seat.

9. The high pressure resistant anti-needle-stick indwelling needle of claim 8, wherein: and a pouring port for pouring UV glue is arranged at the contact position of the catheter seat and the middle end of the isolation plug.