CN219290414U

CN219290414U - Needle-free joint three-cavity catheter

Info

Publication number: CN219290414U
Application number: CN202320373335.2U
Authority: CN
Inventors: 王何江姗
Original assignee: Second Medical Center of PLA General Hospital
Current assignee: Second Medical Center of PLA General Hospital
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-07-04
Anticipated expiration: 2033-03-03

Abstract

The utility model discloses a needle-free joint three-cavity catheter which comprises a catheter main body fixedly connected with a flushing medicine injection pipe, wherein a needle-free joint assembly is fixedly arranged on the flushing medicine injection pipe, the needle-free joint assembly is positioned at one end of the flushing medicine injection pipe far away from the catheter main body, the needle-free joint assembly comprises a joint main body which is arranged into a short pipe shape, a sealing plate is fixedly arranged in the joint main body in a sealing manner, a through pipe is arranged on the sealing plate in a penetrating manner, one end of the through pipe far away from the flushing medicine injection pipe and is in a conical shape, a liquid side hole is formed in the side wall of one end of the through pipe far away from the flushing medicine injection pipe, a plurality of annular barrel parts with gradually increased diameters are sleeved outside the through pipe, the annular barrel parts are coaxially arranged and fixedly arranged on the sealing plate, and a tightening assembly is sleeved outside the joint main body. The utility model can directly butt joint the infusion set joint with the needleless joint component, and the tightening component is arranged to avoid accidental slipping of the needle head, reduce the incidence rate of needle puncture injury, and simultaneously adapt to infusion sets and syringes with different specifications.

Description

Needle-free joint three-cavity catheter

Technical Field

The utility model relates to the technical field related to medical appliances, in particular to a needle-free joint three-cavity catheter.

Background

The catheter is a pipeline made of natural rubber, silicon rubber or polyvinyl chloride (PVC), and can be inserted into the bladder through the urethra so as to drain urine to the outside, after the catheter is inserted into the bladder, an air bag is arranged near the head end of the catheter so as to fix the catheter in the bladder and prevent the catheter from falling off easily, and a drainage tube extending to the outside is connected with the urine bag so as to collect urine. The traditional double-cavity catheter is mainly applied to a long-term indwelling catheterization patient, and the three-cavity catheter is widely applied to the urinary surgery after the electrotomy of diseases such as prostatic hyperplasia, prostatic cancer, bladder tumor and the like, and continuous bladder irrigation and drug injection are required. When the bladder is flushed and injected, the intravenous infusion needle of the infusion set is required to pierce the heparin cap sealed at the flushing and injection port of the three-cavity catheter, and the flushing fluid or the liquid medicine is injected into the bladder under pressure. The patent document with the application number of CN202220384259.0 in China discloses a needle-free joint three-cavity catheter, which comprises a catheter main body, wherein a flushing and medicine injection pipe is arranged on the catheter main body, and a needle-free joint component is fixedly arranged on or integrally formed on the flushing and medicine injection pipe; this three-chamber catheter can be directly with infusion set connects with needle-free type joint component butt joint, consequently compare with traditional bladder irrigation, can avoid the syringe needle unexpected slippage, but the connected mode adopts direct grafting, still produces because of unexpected circumstances of pulling and drops easily, can not adapt to infusion set or syringe of different specifications simultaneously.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a three-cavity catheter without a needle joint.

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

the utility model provides a three-cavity catheter of needleless joint, includes the catheter main part that fixedly connected with washed the injection tube, the washing injection tube on fixedly be provided with needleless joint Assembly, needleless joint Assembly is located wash the injection tube and keep away from the one end of catheter main part, needleless joint Assembly is including setting up to short tubular joint main part, joint main part internal seal is fixed and is provided with the shrouding, run through on the shrouding and be provided with the siphunculus, wash the injection tube and set up to sharp cone is kept away from to siphunculus one end, the siphunculus is kept away from and is provided with the logical liquid side opening on the one end lateral wall that washes the injection tube, the siphunculus overcoat is equipped with a plurality of diameters and increases gradually annular barrel spare, a plurality of annular barrel spare coaxial setting and fixing on the shrouding, joint main part overcoat is equipped with and tightens the subassembly.

Preferably, the outer wall of the joint main body is provided with an external thread which protrudes outwards, and the inner wall of the joint main body is provided with an internal thread which protrudes inwards.

Preferably, the annular barrels are arranged in an inward expansion shape at the edge of one end far away from the flushing medicine injection tube.

Preferably, the tightening assembly comprises a fixed block fixedly arranged on the side wall of the joint main body, a binding belt is fixedly connected to one end of the fixed block, and a strip-shaped penetrating opening matched with the binding belt is formed in the fixed block.

Preferably, the connector body is provided with a sealing plug outside, the sealing plug is fixedly connected with the connector body through a connecting strip, and the edge of one end of the connector body far away from the flushing medicine injection tube is fixedly provided with a hard ring.

Preferably, a plurality of reinforcing ribs are fixedly arranged around one end of the through pipe, which is close to the flushing medicine injection pipe.

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

the needleless connector assembly can be directly in butt joint with the infusion set connector, the infusion set connector and the infusion set connector can be in sealing connection, in the connection process, the infusion set connector or the syringe connector can be arranged between the two annular cylinders, and an external binding belt passes through the strip-shaped through hole and is tensioned, so that the connector main body and the infusion set connector or the syringe connector are tightly bound on a hard through pipe in a sealing manner, and the tight fixation is completed; according to the utility model, through the structural design of inward expansion of the annular cylinder, the clamping effect is ensured to be better.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

fig. 2 is a schematic cross-sectional view of the joint body of the present utility model.

In the figure:

1 a catheter main body, 2 a flushing medicine injection tube, 3 a needleless joint component, 4 a joint main body, 5 a sealing plate, 6 a through pipe, 7 an annular barrel part, 8 a sealing plug, 9 connecting strips, 10 a hard ring, 11 reinforcing ribs, 12 a fixing block and 13 a binding belt.

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.

1-2, a needleless junction three lumen urinary catheter comprising:

the catheter main body 1 fixedly connected with the flushing medicine injection tube 2 is fixedly provided with a needleless connector assembly 3 on the flushing medicine injection tube 2, the needleless connector assembly 3 is positioned at one end of the flushing medicine injection tube 2 far away from the catheter main body 1, the three-cavity catheter is mainly used for needleless connection of an infusion set and an injector, the three-cavity catheter is different from the existing three-cavity catheter, in order to ensure the connection tightness and stability, the needleless connector assembly 3 comprises a connector main body 4 which is arranged in a short tube shape, a sealing plate 5 is fixedly arranged in the connector main body 4 in a sealing manner, a through pipe 6 is penetrated on the sealing plate 5, a plurality of reinforcing ribs 11 are fixedly arranged around one end of the through pipe 6 close to the flushing medicine injection tube 2, the strength between the through pipe 6 and the connector main body 4 can be ensured, one end of the through pipe 6 is far away from the flushing medicine injection tube 2 and is arranged in a taper shape, the siphunculus 6 keep away from and be provided with logical liquid side opening on the one end lateral wall that washes notes medicine pipe 2, logical liquid side opening sets up on the arcwall face of slope, can't be stopped up, siphunculus 6 overcoat is equipped with a plurality of diameters and increases annular barrel part 7 gradually, a plurality of annular barrel part 7 coaxial settings and fix on shrouding 5, connect main part 4 overcoat to be equipped with and tighten the subassembly, it is including fixing the fixed block 12 that sets up on connecting main part 4 lateral wall to tighten the subassembly, fixed block 12 one end fixedly connected with ribbon 13, be provided with the bar wearing mouth that matches with ribbon 13 on the fixed block 12, pass in the bar wearing mouth through ribbon 13, then spacing to the ribbon, fixed block 12 has a shaping variable, can remove the restriction to ribbon 13 through deformation, accomplish the whole tightening, seal the fastening to connecting.

The outer wall of the joint main body 4 is provided with an external convex thread, and the inner wall of the joint main body 4 is provided with an internal convex thread, so that various connection operations are convenient to carry out; meanwhile, in order to ensure the tightness of the injector or the infusion apparatus inserted between the two annular barrel pieces 7, the edges of one end of the annular barrel pieces 7 far away from the flushing medicine injection tube 2 are arranged to be inward expanded.

The joint main part 4 is provided with sealing plug 8 outward, can guarantee the leakproofness health nature of washing injection pipe 2 when not using, and sealing plug 8 passes through connecting strip 9 and connects main part 4 fixed connection, guarantees the wholeness, and the one end edge that keeps away from washing injection pipe 2 at joint main part 4 simultaneously is fixed to be provided with stereoplasm ring 10, makes things convenient for sealing plug 8 to insert and seals.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a three-cavity catheter of needleless joint, includes catheter main part (1) that fixedly connected with washed notes medicine pipe (2), wash and be provided with needleless joint Assembly (3) on notes medicine pipe (2), its characterized in that, needleless joint Assembly (3) are located wash the one end that notes medicine pipe (2) kept away from catheter main part (1), needleless joint Assembly (3) are including setting up to short tubular joint main part (4), joint main part (4) internal seal is fixed and is provided with shrouding (5), run through on shrouding (5) and be provided with siphunculus (6), wash notes medicine pipe (2) and set up to sharp taper are kept away from to siphunculus (6) one end lateral wall on washing notes medicine pipe (2), siphunculus (6) overcoat is equipped with a plurality of diameter progressively increasing annular barrel (7), a plurality of annular barrel (7) coaxial setting is and are fixed on shrouding (5), joint main part (4) overcoat is equipped with the subassembly.

2. The three-cavity urinary catheter without needle joint according to claim 1, wherein the outer wall of the joint main body (4) is provided with an outer convex thread, and the inner wall of the joint main body (4) is provided with an inner convex inner thread.

3. A needleless junction three lumen urinary catheter in accordance with claim 1, wherein the edges of the ends of said annular barrels (7) remote from the irrigation syringe (2) are configured to be inwardly flared.

4. The needle-free joint three-cavity urinary catheter according to claim 1, wherein the tightening assembly comprises a fixed block (12) fixedly arranged on the side wall of the joint main body (4), a binding belt (13) is fixedly connected to one end of the fixed block (12), and a strip-shaped penetrating port matched with the binding belt (13) is arranged on the fixed block (12).

5. The needle-free joint three-cavity urinary catheter according to claim 1, wherein a sealing plug (8) is arranged outside the joint main body (4), the sealing plug (8) is fixedly connected with the joint main body (4) through a connecting strip (9), and a hard ring (10) is fixedly arranged at the edge of one end of the joint main body (4) far away from the flushing and medicine injection tube (2).

6. A needleless junction three-lumen urinary catheter in accordance with claim 1, wherein a plurality of reinforcing ribs (11) are fixedly arranged around one end of the tube (6) close to the flushing and drug-injecting tube (2).