CN219001685U - Disposable catheter - Google Patents

Abstract

The utility model provides a disposable catheter which comprises a catheter body with a double-layer structure, wherein the inner layer of the catheter body is a catheter, the outer layer of the catheter body is an auxiliary catheter, the front end of the auxiliary catheter is fixedly connected with the side wall of the catheter, the front end of the catheter extends out of the auxiliary catheter, a catheter head is arranged at the end part of the front end of the catheter, the outer side wall of the tail end of the catheter is fixedly connected with the inner side wall of the tail end of the auxiliary catheter, a liquid outlet pipe and a drug injection pipe which are communicated with the catheter and pass through the auxiliary catheter, and an auxiliary inlet pipe which is communicated with the auxiliary catheter are arranged at the tail end of the catheter, a bag body is arranged at the upper part of the auxiliary catheter, a connector is connected to the outer surface of the lower part of the liquid outlet pipe, a connecting through hole is arranged in the connector, the lower part of the liquid outlet pipe is connected in the connecting through hole, and the inner diameter of the connecting through hole gradually increases from one end close to one end far away from the catheter body. The utility model has the beneficial effects that: the connecting through hole in the connector is set to be of a frustum surface structure, and when the connector is screwed to the urine bag, the liquid outlet pipe moves upwards relative to the connecting through hole, so that the connector locks the liquid outlet pipe and the urine bag liquid inlet pipe.

Description

Disposable catheter

Technical Field

The utility model belongs to the technical field of catheters, and particularly relates to a disposable catheter.

Background

A catheter is a conduit inserted into the urinary bladder from the urethra to drain urine, and is a conduit made of natural rubber, silicone rubber or polyvinyl chloride. After the catheter is inserted into the bladder, an air bag is arranged near the head end of the catheter to fix the catheter and remain in the bladder, so that the catheter is not easy to fall out, and the catheter is connected with a urine bag to collect urine. The existing urinary catheter and the urine bag are fixed together when leaving the factory and cannot be detached independently, if the urine bag is damaged in later use, the whole urinary catheter is wasted, and unnecessary waste is caused; the urine bag is independently arranged, when the urine bag is connected to the catheter, the urine bag is fixed through the buckle, when the urine bag is independently taken down, the buckle is opened at one moment, and if an operator does not hold the urine bag in time, the urine bag can be directly fallen off or even broken to pollute the environment; of course, in the structure of installing the urine bag alone, there are cases where the urine bag is directly inserted into the liquid outlet of the urinary catheter through the pagoda joint fixedly connected to the catheter tube of the urine bag, and this is easy to fall.

Disclosure of Invention

In view of the above, the present utility model aims to overcome the above-mentioned drawbacks of the prior art, and proposes a disposable urinary catheter.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a disposable catheter, including bilayer structure's body, the body inlayer is the urinary catheter, the skin is the auxiliary tube, auxiliary tube front end and urinary catheter lateral wall rigid coupling are in the same place, and the urinary catheter front end stretches out the auxiliary tube, and be equipped with the urinary catheter head at the front end tip, urinary catheter terminal lateral wall and auxiliary tube terminal inside wall rigid coupling are in the same place, be equipped with at the body end with urinary catheter intercommunication and pass auxiliary tube's drain pipe and annotate the medicine pipe, with auxiliary tube intercommunication's supplementary feed tube, auxiliary tube upper portion is equipped with the utricule, be connected with the connector at drain pipe lower part external surface, and the inside connecting through-hole that is equipped with of connector, drain pipe lower part connection is in the connecting through-hole, and connecting through-hole's internal diameter size is from the one end that is close to the one end of keeping away from the body gradually increases.

Further, an external thread is arranged on the outer surface of the lower part of the liquid outlet pipe, a connecting through hole on the connecting head is provided with an internal thread, and the connecting head is connected to the lower part of the liquid outlet pipe in a threaded manner.

Further, a limiting convex edge is circumferentially and outwards arranged at the liquid outlet at the lower end of the liquid outlet pipe.

Further, a plurality of arc through grooves extending along the axial direction are uniformly distributed on the periphery of the outer surface of the connector.

Further, the drain pipe is located urinary catheter lower extreme department, and the injection pipe slope is connected in urinary catheter lower part and injection pipe and urinary catheter junction are higher than drain pipe and urinary catheter junction downwards to be close to the dog that injection pipe and urinary catheter upside junction rigid coupling had towards urinary catheter center pin slope to set up on the injection pipe inner wall, and the downside junction of injection pipe and urinary catheter is located the below department of dog.

Further, the liquid outlet pipe is welded at the opening of the lower end of the urinary catheter.

Further, a valve is arranged at the opening of the auxiliary inlet pipe.

Further, scale marks are arranged on the inner wall of the auxiliary pipe.

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

the disposable catheter is characterized in that the connector is arranged on the outer side of the lower part of the liquid outlet pipe and used for connecting and locking the urine bag, so that the urine bag is convenient to disassemble and assemble, meanwhile, the connecting through hole in the connector is of a frustum surface structure, namely the section size of the connecting through hole is gradually increased from one end close to the catheter body to one end far away from the catheter body, when the connector is screwed towards the urine bag, the liquid outlet pipe moves upwards relative to the connecting through hole, and further the contact between the liquid outlet pipe and the connector is tighter and tighter, so that the connector locks the liquid outlet pipe and the liquid inlet pipe of the urine bag; the catheter has the advantages of simple structure, simple and convenient use, strong stability of connecting the urine bag, safety and reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a disposable urinary catheter according to an embodiment of the utility model;

FIG. 2 is a cross-sectional view of a connector according to an embodiment of the present utility model;

fig. 3 is a top view of a connector according to an embodiment of the utility model.

Reference numerals illustrate:

1. a tube body; 11. an auxiliary tube; 111. a bladder; 12. a urinary catheter; 121. a urine tube head; 2. a liquid outlet pipe; 21. limiting convex edges; 3. auxiliary pipe feeding; 4. a drug injection tube; 41. a stop block; 5. a connector; 51. a connecting through hole; 52. arc through grooves; 6. and (3) a valve.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

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

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in the figure, a disposable catheter comprises a catheter body 1 with a double-layer structure, wherein the inner layer of the catheter body 1 is a catheter 12, the outer layer is an auxiliary catheter 11, the front end of the auxiliary catheter 11 is fixedly connected with the side wall of the catheter 12, the front end of the catheter 12 extends out of the auxiliary catheter 11 and is provided with a catheter 12 head at the front end part, the outer side wall of the tail end of the catheter 12 is fixedly connected with the inner side wall of the tail end of the auxiliary catheter 11, the tail end of the catheter body 1 is provided with a liquid outlet catheter 2 and a medicine injection catheter 4 which are communicated with the catheter 12 and penetrate through the auxiliary catheter 11, an auxiliary inlet catheter 3 communicated with the auxiliary catheter 11, the upper part of the auxiliary catheter 11 is provided with a bag body 111, the outer surface of the lower part of the liquid outlet catheter 2 is connected with a connector 5, a connecting through hole 51 is formed in the connector 5, the lower part of the liquid outlet catheter 2 is connected in the connecting through hole 51, and the inner diameter of the connecting through hole 51 is gradually increased from one end close to the catheter body 1 to one end far away from the catheter body 1. In the embodiment, before use, a liquid inlet pipe of the urine bag is inserted into the liquid outlet pipe 2 and is extruded, locked and fixed at the joint of the liquid inlet pipe and the liquid outlet pipe through the connector 5; when in use, after the tube body 1 is inserted into the bladder, water or air is filled into the auxiliary inlet tube 3, and reaches the position of the bag body 111 through the gap between the auxiliary tube 11 and the urinary catheter 12 to expand the bag body 111, the expanded bag body 111 prevents the tube body 1 from being separated from the bladder, and then urine flows into the liquid outlet tube 2 through the urinary catheter 12 and then flows into the urine bag through the liquid outlet tube 2; the drug-injecting tube 4 is provided for injecting a drug into the urinary catheter 12 for cleaning. In this embodiment, the connecting through hole 51 has an axisymmetric structure.

The outer surface of the lower part of the liquid outlet pipe 2 is provided with external threads, a connecting through hole 51 on the connector 5 is provided with internal threads, and the connector 5 is in threaded connection with the lower part of the liquid outlet pipe 2. In this embodiment, the connector 5 can be screwed at the lower part of the liquid outlet pipe 2, but when the urine bag is connected, the connector 5 is screwed up to the lower end of the liquid outlet pipe 2, so that the liquid inlet pipe on the urine bag is conveniently inserted into the liquid outlet pipe 2, in this process, the lower end of the liquid outlet pipe 2 can be expanded due to the insertion of the liquid inlet pipe of the urine bag, after the liquid inlet pipe is inserted into the liquid outlet pipe 2, the connector 5 is screwed down along the liquid outlet pipe 2, and the liquid outlet pipe 2 and the connector 5 are made of rubber materials, so that the screw threads can be deformed, and even if the connector 5 and the liquid outlet pipe 2 are not connected through screw threads, the connector 5 can be mutually extruded through screw threads in the downward moving process of the connector 5, and the pressing effect on the liquid outlet pipe 2 can be realized due to the fact that the connecting through hole 51 of the connector 5 is of a conical surface structure.

The liquid outlet at the lower end of the liquid outlet pipe 2 is circumferentially and outwardly provided with a limiting convex edge 21, and the connector 5 is prevented from being separated from the liquid outlet pipe 2 when the connector 5 is screwed by the limiting convex edge 21.

A plurality of arc through grooves 52 extending along the axial direction are uniformly distributed on the circumferential direction of the outer surface of the connector 5, so that the connector 5 can be conveniently screwed.

The drain pipe 2 is located urinary catheter 12 lower extreme department, and injection pipe 4 slope downward connection is in urinary catheter 12 lower part and injection pipe 4 and urinary catheter 12 junction is higher than drain pipe 2 and urinary catheter 12 junction to be close to injection pipe 4 and urinary catheter 12 upside junction rigid coupling on injection pipe 4 inner wall has towards urinary catheter 12 center pin slope downward setting's dog 41, and injection pipe 4 and urinary catheter 12 downside junction is located the below department of dog 41. In this embodiment, when urine flows down to the liquid tube, the stopper 41 can prevent the urine from entering the drug injection tube 4, i.e. the urine can be ensured to flow into the urine bag through the liquid outlet tube 2 as much as possible, so that the pollution of the urine to the drug injection tube 4 is avoided.

The liquid outlet pipe 2 is welded at the opening of the lower end of the urinary catheter 12.

The opening of the auxiliary inlet pipe 3 is provided with a valve 6. In this embodiment, the valve 6 may be a hard valve or a soft valve.

Graduation marks are arranged on the inner wall of the auxiliary tube 11, so that the length of the inserted urinary catheter 12 can be conveniently mastered.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. A disposable urinary catheter, characterized in that: including bilayer structure's body, the body inlayer is the urinary catheter, the skin is the auxiliary tube, auxiliary tube front end and urinary catheter lateral wall rigid coupling are in the same place, and the urinary catheter front end stretches out the auxiliary tube, and be equipped with the urinary catheter head at the front end tip, urinary catheter terminal lateral wall and auxiliary tube terminal inside wall rigid coupling are in the same place, be equipped with at the body end with urinary catheter intercommunication and pass auxiliary tube's drain pipe and annotate the medicine pipe, with auxiliary tube intercommunication's supplementary intake pipe, auxiliary tube upper portion is equipped with the utricule, be connected with the connector at drain pipe lower part external surface, and the inside connection through-hole that is equipped with of connector, drain pipe lower part connection is in the connection through-hole, and the internal diameter size of connection through-hole is from the one end that is close to the body to the one end that keeps away from the body increases gradually.

2. A disposable urinary catheter according to claim 1, wherein: the outer surface of the lower part of the liquid outlet pipe is provided with external threads, a connecting through hole on the connecting head is provided with internal threads, and the connecting head is in threaded connection with the lower part of the liquid outlet pipe.

3. A disposable urinary catheter according to claim 1, wherein: and a limiting convex edge is circumferentially and outwards arranged at the liquid outlet at the lower end of the liquid outlet pipe.

4. A disposable urinary catheter according to claim 1, wherein: a plurality of arc through grooves extending along the axial direction are uniformly distributed on the periphery of the outer surface of the connector.

5. A disposable urinary catheter according to claim 1, wherein: the drain pipe is located urinary catheter lower extreme department, and the injection pipe slope is connected in urinary catheter lower part and injection pipe and urinary catheter junction are higher than drain pipe and urinary catheter junction downwards to be close to the dog that injection pipe and urinary catheter upside junction rigid coupling had towards urinary catheter center pin slope downwards to set up on the injection pipe inner wall, and the downside junction of injection pipe and urinary catheter is located the below department of dog.

6. A disposable urinary catheter according to claim 1, wherein: the liquid outlet pipe is welded at the opening of the lower end of the urinary catheter.

7. A disposable urinary catheter according to claim 1, wherein: the opening of the auxiliary inlet pipe is provided with a valve.

8. A disposable urinary catheter according to claim 1, wherein: scale marks are arranged on the inner wall of the auxiliary pipe.

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