CN218923429U

CN218923429U - Y-shaped indwelling needle

Info

Publication number: CN218923429U
Application number: CN202222722432.6U
Authority: CN
Inventors: 陆军; 陆维炜; 赵丽杰; 倪琳
Original assignee: Jiangsu Caina Medical Technology Co ltd
Current assignee: Jiangsu Caina Medical Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-28
Anticipated expiration: 2032-10-17

Abstract

The utility model relates to the technical field of medical instruments, in particular to a Y-shaped indwelling needle which comprises a needle seat and a catheter seat, wherein a needle tube is arranged on the needle seat, a catheter is arranged on the catheter seat, the needle tube penetrates through the catheter, the Y-shaped indwelling needle also comprises a safety shell, the safety shell is respectively connected with the needle seat and the catheter seat, a needle penetration pipeline and an injection side pipeline are arranged on the catheter seat, a leakage-proof silica gel block is arranged in the needle penetration pipeline, the needle tube penetrates through the leakage-proof silica gel block and then stretches into the catheter, after the needle is withdrawn, the leakage-proof silica gel block seals the penetration hole by means of silica gel elastic capability, a safety buckle is arranged in the safety shell, an elastic bending part is arranged on the safety buckle, and after the needle is withdrawn, the elastic bending part is subjected to elastic action to plug a needle tube path, so that the needle tube is prevented from penetrating secondarily. The Y-shaped indwelling needle realizes reliable sealing after needle withdrawal through the anti-leakage silica gel block, and the safety buckle in the safety shell avoids repeated use of the puncture needle, so that the use problems of leakage, secondary infection and the like are solved, and the use safety of the indwelling needle is improved.

Description

Y-shaped indwelling needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a Y-shaped indwelling needle.

Background

The venous indwelling needle is an infusion tool, and is usually composed of a stainless steel needle core, a soft outer sleeve and a plastic needle seat, the outer sleeve and the needle core are penetrated into a blood vessel together during puncturing, then the needle core is withdrawn, the outer sleeve is left in the blood vessel, and for patients who infuse for a long time or intermittently and continuously, the venous indwelling needle can avoid damage and complications caused by repeated puncturing, so that the venous indwelling needle has wide clinical application.

The existing indwelling needle is in a back needle mode, after the needle core is pulled out, the indwelling needle has leakage risk because of a needle hole, and in addition, no matter the needle core is intentional or unintentional, the needle core can be reused, and particularly, after the needle head contacts with blood of a patient, the needle head can cause contact infection of external personnel, and damage such as tetanus, bacterial invasion, infectious disease infection and the like is caused.

Disclosure of Invention

Based on the above problems, the present utility model aims to provide a Y-shaped indwelling needle, which improves the safety of use and avoids repeated use.

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

the utility model provides a Y type is kept somewhere needle, including needle file and pipe seat, be provided with the needle tubing on the needle file, be provided with the pipe on the pipe seat, the needle tubing wears to locate in the pipe, it still includes the safety housing, the safety housing is connected with needle file, pipe seat, be provided with acupuncture pipeline and injection side pipeline on the pipe seat, be provided with the silica gel piece of preventing revealing in the acupuncture pipeline, the needle tubing pierces and stretches into in the pipe after preventing revealing the silica gel piece, after the back of moving back, the silica gel piece of preventing revealing relies on silica gel elastic energy to seal the perforation, be provided with the safety knot in the safety housing, be provided with elasticity bending part on the safety knot, after the back of moving back, elasticity bending part receives elasticity effect shutoff needle tubing route, avoid the needle tubing secondary to penetrate.

Specifically, the anti-leakage silica gel block comprises two silica gel plugs which are arranged at intervals, a sleeve is connected between the two silica gel plugs, and after the needle tube penetrates one silica gel plug, the needle tube penetrates through a cavity of the sleeve and then penetrates out of the other silica gel plug.

Particularly, the safety buckle is a G-shaped elastic piece integrally bent and formed, a limiting block which is used for clamping and fixing the bottom of the G-shaped elastic piece is arranged on the inner wall of the safety shell, and the elastic bending part is a short side part of the G-shaped elastic piece.

Particularly, the safety buckle is provided with a buckling part extending to the guide tube seat, the buckling part is a long side part of the G-shaped elastic sheet, the guide tube seat is inserted into the safety shell, the insertion part of the guide tube seat is provided with a bulge, and the buckling part is correspondingly provided with a buckling groove.

Specifically, the bottom of the safety buckle and the elastic bending part are respectively provided with a through hole for the running needle tube to pass through, and after the needle is withdrawn, the through holes on the elastic bending part are shifted.

In particular, one side surface of the safety shell is opened, and a cover plate in snap connection is arranged on the opening surface.

In particular, the needle seat is fixedly inserted into the safety shell, a convex rib is arranged on the insertion part of one of the needle seat and the safety shell, and a slot is arranged on the other of the needle seat and the safety shell corresponding to the convex rib.

In particular, arrows for guiding separation are respectively marked on the needle seat and the safety shell.

In summary, compared with the prior art, the Y-shaped indwelling needle has the beneficial effects that reliable sealing after needle withdrawal is realized through the anti-leakage silica gel block, and the puncture needle is prevented from being reused through the safety buckle in the safety shell, so that the use problems of leakage, secondary infection and the like are solved, and the use safety of the indwelling needle is improved.

Drawings

FIG. 1 is a schematic view of the profile of a Y-shaped indwelling needle according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a Y-shaped indwelling needle according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing the internal structure of a safety housing in a Y-shaped indwelling needle according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a leakage-proof silicone block in a Y-shaped retention needle provided by an embodiment of the present utility model;

fig. 5 is a schematic view of a safety buckle in a Y-type indwelling needle according to an embodiment of the present utility model.

In the figure:

1-a needle stand; 2-a catheter holder; 2 a-protrusions; 3-a safety housing; 3 a-limiting block; 4-needle tube; 5-a catheter; 6-needling the pipeline; 7-injection side tubing; 8-a leakage-proof silica gel block; 8 a-a silica gel plug; 8 b-a sleeve; 9, a safety buckle; 9 a-an elastic bending part; 9 b-a snap-fit portion; 9 c-a buckling groove; 9 d-passing holes; 10-cover plate; 11-ribs; 12-slots; 13-arrow.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, mechanically connected, electrically connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present preferred embodiment provides a Y-type indwelling needle comprising a needle hub 1, a catheter hub 2 and a safety housing 3.

Wherein needle tubing 4 is arranged on needle stand 1, catheter 5 is arranged on catheter holder 2, needle punching pipeline 6 and injection side pipeline 7 are arranged on catheter holder 2, needle tubing 4 is arranged in catheter 5 in a penetrating way through needle punching pipeline 6, safety shell 3 is respectively connected with needle stand 1 and catheter holder 2, specifically adopts the form of inserting buckle, and safety shell 3 and needle stand 1 are arranged to be of a structure which is convenient to separate, so that needle withdrawing is realized.

The anti-leakage silica gel block 8 is further arranged in the needling pipeline 6, the needle tube 4 penetrates through the anti-leakage silica gel block 8 and then stretches into the guide tube 5, and after the needle is withdrawn, the anti-leakage silica gel block 8 seals the needling holes by means of silica gel elastic capability so as to improve the tightness and effectively prevent leakage of injection. Specifically, referring to fig. 4 in detail, the anti-leakage silica gel block 8 includes two silica gel plugs 8a arranged at intervals, a sleeve 8b is connected between the two silica gel plugs 8a, after the needle tube 4 penetrates into one silica gel plug 8a, the needle tube 4 penetrates through a cavity of the sleeve 8b and then penetrates out of the other silica gel plug 8a, and the hollow sleeve 8b can reduce the penetration resistance of the needle tube 4.

The safety buckle 9 is arranged in the safety shell 3, the elastic bending part 9a is arranged on the safety buckle 9, and after the needle is withdrawn, the elastic bending part 9a is used for plugging the path of the needle tube 4 under the action of elasticity, so that the needle tube 4 is prevented from penetrating into the needle tube for the second time. Referring to fig. 5, the safety buckle 9 is preferably designed as an integrally bent G-shaped spring plate, and combines a plurality of original sectional members into a whole, thereby facilitating assembly and production.

The safety device comprises a safety shell 3, and is characterized in that a limiting block 3a for clamping and fixing the bottom of a G-shaped elastic piece is arranged on the inner wall of the safety shell 3, an elastic bending part 9a is a short side part of the G-shaped elastic piece, a buckling part 9b extending towards a guide tube seat 2 is arranged on the safety buckle 9, the buckling part 9b is a long side part of the G-shaped elastic piece, the guide tube seat 2 is inserted into the safety shell 3, a bulge 2a is arranged on an insertion part of the guide tube seat 2, and a buckling groove 9c is formed in the buckling part 9b corresponding to the bulge 2 a.

In particular, the bottom of the safety buckle 9 and the elastic bending portion 9a are respectively provided with a through hole 9d for the needle tube 4 to pass through, and after the needle is withdrawn, the through hole 9d on the elastic bending portion 9a is shifted, so that the needle tube 4 is prevented from penetrating again, and the infection risk is avoided.

And one side surface of the safety shell 3 is opened, and the opening surface is provided with a cover plate 10 connected by a buckle, so that the assembly forming and the detection during abnormality are convenient.

The needle seat 1 is fixedly inserted into the safety shell 3, the inserting structures of the needle seat 1 and the safety shell 3 are interchangeable, a convex edge 11 is arranged on the inserting part of the safety shell 3, a slot 12 is arranged on the needle seat 1 corresponding to the convex edge 11, and in particular, an arrow 13 for guiding separation is respectively marked on the needle seat 1 and the safety shell 3.

In conclusion, the Y-shaped indwelling needle realizes reliable sealing after needle withdrawal through the anti-leakage silica gel block, and the safety buckle in the safety shell avoids repeated use of the puncture needle, so that the use problems of leakage, secondary infection and the like are solved, and the use safety of the indwelling needle is improved.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The Y-shaped indwelling needle comprises a needle seat and a catheter seat, wherein a needle tube is arranged on the needle seat, a catheter is arranged on the catheter seat, the needle tube is arranged in the catheter in a penetrating mode, and the Y-shaped indwelling needle is characterized by further comprising a safety shell, the safety shell is respectively connected with the needle seat and the catheter seat, a needle-punching pipeline and an injection side pipeline are arranged on the catheter seat, a leakage-preventing silica gel block is arranged in the needle-punching pipeline, the needle tube penetrates through the leakage-preventing silica gel block and then stretches into the catheter, after needle withdrawal, the leakage-preventing silica gel block seals a puncture hole by means of silica gel elastic capacity, a safety buckle is arranged in the safety shell, an elastic bending part is arranged on the safety buckle, and after needle withdrawal, the elastic bending part is used for plugging a needle tube path under the action of elasticity, so that needle tube secondary penetration is avoided.

2. The Y-type indwelling needle according to claim 1, wherein: the anti-leakage silica gel block comprises two silica gel plugs which are arranged at intervals, a sleeve is connected between the two silica gel plugs, and after the needle tube penetrates one silica gel plug, the needle tube penetrates through the cavity of the sleeve and then penetrates out of the other silica gel plug.

3. The Y-type indwelling needle according to claim 1, wherein: the safety buckle is a G-shaped elastic piece integrally bent and formed, a limiting block which is used for clamping and fixing the bottom of the G-shaped elastic piece is arranged on the inner wall of the safety shell, and the elastic bending part is a short side part of the G-shaped elastic piece.

4. A Y-type indwelling needle according to claim 3, in which: the safety buckle is provided with a buckling part extending towards the catheter seat, the buckling part is a long side part of the G-shaped elastic sheet, the catheter seat is inserted into the safety shell, the insertion part of the catheter seat is provided with a bulge, and the buckling part is provided with a buckling groove corresponding to the bulge.

5. The Y-type indwelling needle according to claim 4, wherein: the bottom of the safety buckle and the elastic bending part are respectively provided with a through hole for the needle tube to pass through, and after the needle is withdrawn, the through holes on the elastic bending part are shifted.

6. The Y-type indwelling needle according to claim 1, wherein: and one side surface of the safety shell is opened, and a cover plate connected by a buckle is arranged on the opening surface.

7. The Y-type indwelling needle according to claim 1, wherein: the needle seat is fixedly inserted into the safety shell, a convex rib is arranged on the insertion part of one of the needle seat and the safety shell, and a slot is arranged on the other of the needle seat and the safety shell corresponding to the convex rib.

8. The Y-type indwelling needle according to claim 1, wherein: arrows for guiding separation are respectively marked on the needle seat and the safety shell.