CN113975597A - Prevent blockking up catheter - Google Patents

Abstract

The invention discloses an anti-blocking catheter, and belongs to the field of catheters. An anti-clogging catheter comprises an outer tube; the inner tube is arranged in the outer tube, a suction channel is arranged in the inner tube, and a flushing channel is formed between the inner tube and the outer tube; the elastic shrinkage pipe head is provided with a plurality of strip-shaped fine holes and is connected to the pipe orifice of the outer pipe; according to the invention, through the elastic umbrella ribs with the umbrella-shaped structures which are inverted in the elastic contraction tube heads, the sizes of the strip-shaped pores of the elastic contraction tube heads can be adjusted, the enlarged openings are convenient for sucking viscous effusion and even blood clots, and the effusion, the blood clots and even fine broken stones are discharged out of the bladder by using the size change of the strip-shaped pores, so that the blockage of a catheter is effectively avoided, and the pain of a patient is reduced.

Description

An anti-clogging catheter

technical field

The invention relates to the technical field of urinary catheters, in particular to an anti-blocking urinary catheter.

Background technique

A catheter is a tube that is inserted through the urethra into the bladder to drain urine. It is a tube made of natural rubber, silicone rubber or polyvinyl chloride that can be inserted into the bladder through the urethra to drain urine.

In the actual work process, when drainage is performed, there may be viscous blood in the effusion, or even blood clots, and the suction port of the urinary catheter is currently a fixed-size opening. When the effusion needs to be cleaned, The viscous blood clots in the bladder can block the orifice of the catheter, resulting in the accumulation of fluid and blood clots that cannot be discharged. At present, in order to solve this problem, the catheter can only be frequently pulled out and inserted from the patient's body, and the patient is very painful during the process.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an anti-blocking catheter in order to solve the problem that viscous blood or blood clots may be blocked when the catheter is collected in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

An anti-clogging urinary catheter, comprising

outer tube;

Inner tube built into outer tube,

in,

The inner tube is provided with a suction channel, and a flushing channel is formed between the inner tube and the outer tube;

an elastic shrinkable tube head with a plurality of strip-shaped pores, which is connected to the mouth of the outer tube;

sliding a push-pull column arranged in the inner tube;

a plurality of elastic umbrella ribs, the lower end is a narrow end and is connected to the upper end of the push-pull column in a ring shape, and the wide part is located on the inner side wall of the elastic shrinkable tube head;

The push ring sheet is slidably arranged in the flushing channel, and the push-pull column is connected with the push ring sheet by pushing the thin rod,

in

When the flushing liquid is transported through the flushing channel, the flushing liquid will first push the ring piece to move upwards. At this time, the push-pull column drives the push-pull column to move upward by pushing the thin rod. The wide end of the bone is located on the inner side of the upper end of the elastic contraction tube head, and the upward movement is limited. At this time, the elastic umbrella rib will support and expand outward due to its own elasticity, thereby pushing the expansion elastic contraction tube head and pushing the ring piece to move up to a certain position. When the head expands, the flushing liquid will also flow out from the expansion gap between the push ring and the elastic shrinkable tube head for washing. At the same time, the size of the strip-shaped pores on the elastic shrinkable tube head becomes larger, and the suction channel inside the inner tube is used for suction. Accumulation fluid.

Preferably, the elastic shrinkable tube head has an inverted umbrella-shaped structure, and the head of the elastically shrinkable tube head is concave inward to form an inverted umbrella-shaped end and an inverted umbrella-shaped opening;

The lower end of the elastic umbrella rib is a narrow end, the upper end of the elastic umbrella rib is a wide end, and the wide end of the elastic umbrella rib is located between the inverted umbrella-shaped end and the inner wall of the side edge of the elastic shrinkable tube head. The umbrella-shaped end is connected to the push-pull column through a thin connecting rod, the lower end of the push-pull column is connected with a pull rope, and the pull rope extends outward through the end of the inner tube;

When the pulling rope is pulled, the elastic umbrella rib is retracted inward, and the end of the inverted umbrella is retracted inward at this time, and the opening of the inverted umbrella grabs and squeezes the blood clot and breaks it;

When the irrigation fluid is transported through the irrigation channel, the elastic shrinkable tube head expands, and the size of the strip-shaped pores on the elastic shrinkable tube head becomes larger.

Preferably, a plurality of the elastic ribs are in a structure in which both ends are narrow ends and the middle part is a wide part, the upper ends of the plurality of elastic ribs are connected, and the narrow ends of the upper ends of the elastic ribs and the elastic shrinkage The inside of the top side of the tube head is abutted/connected, and the wide part of the middle part of the elastic rib is abutted against the inner side wall of the elastically shrinkable tube head.

Preferably, the upper narrow ends of the elastic ribs are connected by connecting balls.

Preferably, a support frame is fixedly connected to the inner tube, and the push-pull column is slidably connected to the support frame.

Preferably, a limiting ring is connected to the bottom of the push-pull column.

Preferably, a connecting piece is fixedly connected to the upper end of the push-pull column, the narrow end of the lower end of the elastic rib is fixedly connected to the connecting piece, and the thin pushing rod is also fixedly connected to the connecting piece.

Preferably, the end of the inner pipe is connected with a suction joint, and the end of the outer pipe is connected with a flushing joint.

Preferably, the inner tube is fixedly supported on the outer tube by a plurality of plastic support columns.

Compared with the prior art, the present invention provides an anti-blocking catheter, which has the following beneficial effects:

1. The anti-clogging catheter uses the elastic rib of the umbrella-shaped structure that is inverted inside the elastically shrinkable tube head, and uses the strip-shaped pores that can adjust the size of the elastically shrinkable tube head. The size of the opening of the strip-shaped pores is changed, and the effusion, blood clots, and even small gravel are discharged from the bladder, which effectively avoids the blockage of the catheter and reduces the pain of the patient;

2. The anti-blocking catheter can be folded inwardly by the elastic umbrella rib by pulling the pull rope with a little force. At this time, the inverted umbrella-shaped end is retracted inward, and the inverted umbrella-shaped opening grabs and squeezes the blood clot and breaks it. By squeezing the blood clots into small pieces, the elastic rib can be stretched, and then the treated effusion can be washed and extracted, and the effusion, treated blood clots, and even small The gravel is all out of the bladder.

Description of drawings

1 is a schematic structural diagram of Embodiment 1 of an anti-blocking urinary catheter proposed by the present invention;

Fig. 2 is the structural representation of part A in Fig. 1 of a kind of anti-blocking urinary catheter proposed by the present invention;

Fig. 3 is the structural representation of part B in Fig. 1 of a kind of anti-blocking urinary catheter proposed by the present invention;

4 is a schematic structural diagram of the elastic shrinkable tube head of Embodiment 1 of an anti-blocking urinary catheter proposed by the present invention;

5 is a schematic diagram of the elastic rib structure of Embodiment 1 of an anti-blocking urinary catheter proposed by the present invention;

6 is a schematic structural diagram of Embodiment 2 of an anti-blocking urinary catheter proposed by the present invention;

Fig. 7 is a kind of structural representation at C in Fig. 6 of a kind of anti-blocking urinary catheter proposed by the present invention;

FIG. 8 is a schematic diagram of the elastic rib structure of Embodiment 2 of an anti-blocking urinary catheter proposed by the present invention.

In the figure: 1. Outer tube; 101. Flushing joint; 2. Elastic shrinkable tube head; 201. Inverted umbrella-shaped opening; 202. Inverted umbrella-shaped end; 3. Strip-shaped pores; 4. Elastic umbrella rib; 5. Connect thin rod; 6. Push thin rod; 7. Push ring piece; 8. Connecting piece; 9. Inner tube; 901, Suction joint; 10. Suction channel; 11. Flushing channel; 12. Support frame; 13. Push-pull column; 14. Limit ring; 15. Pull rope; 16. Connect ball.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

Example 1:

Referring to Figures 1-5, an anti-clogging urinary catheter, comprising

outer tube 1;

The inner tube 9 built into the outer tube 1,

in,

4, a suction channel 10 is provided in the inner tube 9, and a flushing channel 11 is formed between the inner tube 9 and the outer tube 1; the inner tube 9 and the outer tube 1 are made of silicone rubber;

Referring to FIG. 4, the elastic shrinkable tube head 2 with a plurality of strip-shaped pores 3 is opened and connected to the nozzle of the outer tube 1; The material of the shrinking tube head 2 is preferably natural rubber, and its softness is relatively softer than the inner tube 9 and the outer tube 1 made of silicone rubber, which is convenient for the subsequent pushing of the ring piece 7 in the flushing channel 11, and can more easily enter the elastic The inner layer of the shrink tube head 2 is in the inner stage, and the elastic shrink tube head 2 is relatively soft, which is convenient for the elastic rib 4 to support and expand.

4 , the push-pull column 13 is slidably arranged in the inner tube 9, and the push-pull column 13 is made of hard plastic to ensure that the elastic rib 4 can be pushed;

4, a plurality of elastic umbrella ribs 4, the lower end is a narrow end and is connected to the upper end of the push-pull column 13 in a ring shape, the wide part is located on the inner side wall of the elastic shrink tube head 2, the lower end is narrow, and the elastic umbrella ribs 4 with a wide head can be Ensure that the elastic shrinkable tube head 2 expands outward and inwardly shrinks, and the annular arrangement enables the elastic shrinkable tube head 2 to be evenly expanded along the circumference;

4 and 5, push the ring piece 7, and slide it in the flushing channel 11, and the push-pull column 13 is connected to the push ring piece 7 by pushing the thin rod 6;

5, the elastic shrinkable tube head 2 has an inverted umbrella-shaped structure, and the head of the elastically shrinkable tube head 2 is concave inward to form an inverted umbrella-shaped end 202 and an inverted umbrella-shaped opening 201;

Referring to Fig. 4, the lower end of the elastic umbrella rib 4 is a narrow end, the upper end of the elastic umbrella rib 4 is a wide end, and the wide end of the elastic umbrella rib 4 is located between the inverted umbrella-shaped end 202 and the side inner wall of the elastic shrinkable tube head 2, The inverted umbrella-shaped end 202 is connected to the push-pull column 13 through the connecting thin rod 5, the lower end of the push-pull column 13 is connected with a pull rope 15, and the pull rope 15 extends outward through the end of the inner tube 9;

When there is a blood clot in the effusion, the pull rope 15 can be pulled, and the pull rope 15 can pull the push-pull column 13 to move down. Due to the existence of the connecting thin rod 5, the elastic umbrella rib 4 can be contracted inwardly, and the inverted umbrella type can be reversed. The end head 202 will be pulled down, and the upper end of the elastic umbrella rib 4 will be contracted and compressed to ensure that the blood clot can be grasped and squeezed;

When the pulling rope 15 is pulled, the elastic umbrella rib 4 is retracted inward, and the inverted umbrella-shaped end 202 is retracted inward at this time, and the inverted umbrella-shaped opening 201 grabs and squeezes the blood clot and breaks it;

When the flushing liquid is transported through the flushing channel 11, the elastic shrinkable tube head 2 expands, and the size of the strip-shaped pores 3 on the elastically shrinkable tube head 2 becomes larger;

When the flushing liquid is transported through the flushing channel 11, the flushing liquid will first push the ring piece 7 to move upward, and at this time, the push ring piece 7 drives the push-pull column 13 to move upward by pushing the thin rod 6, and the push-pull column 13 drives the lower end of the elastic umbrella rib 4 to move upward. The end moves up, and the wide end of the elastic umbrella rib 4 is located on the inner side of the upper end of the elastic shrinkage tube head 2 and the upward movement is limited. At this time, the elastic umbrella rib 4 will be supported and expanded outward due to its own elasticity, thereby pushing the expansion elastic shrinkage tube head 2, pushing The ring piece 7 is moved up to a certain position, and the material of the elastic shrinkable tube head 2 is preferably made of natural rubber, which is softer than the inner tube 9 and the outer tube 1 made of silicone rubber, which is convenient to push and expand the elastic shrinkable tube head 2. When the push ring piece 7 moves up to a certain position in the elastic shrinkable tube head 2, the outer wall of the push ring piece 7 is the expanded elastic shrinkage tube head 2. Due to the expansion of the elastic shrinkable tube head 2, the flushing liquid will also flow from the push ring piece 7. The expansion gap between the elastic shrinkable tube head 2 and the elastic shrinkable tube head 2 flows out for flushing. At the same time, the size of the strip-shaped pores 3 on the elastic shrinkable tube head 2 becomes larger. The blood clot is broken, and at the same time, the size of the strip-shaped pores 3 can be adjusted to become larger, which effectively avoids blockage, and does not need to be inserted back and forth for many times, reducing the pain of the patient.

Example 2:

Referring to Figures 6-8, an anti-blocking urinary catheter is basically the same as Example 1, the difference is that this embodiment is not recommended for effusion with blood clots, and this embodiment uses a plurality of elastic ribs 4 is a structure in which both ends are narrow ends and the middle part is a wide part, the upper ends of a plurality of elastic ribs 4 are connected, and the narrow ends of the upper ends of the elastic ribs 4 are abutted/connected with the inside of the top side of the elastic shrink tube head 2, and the elastic ribs 4 The wide part of the middle part is in contact with the inner side wall of the elastic shrinkable tube head 2. The device can directly shrink and expand the elastic shrinkable tube head 2 through the expansion and contraction of the elastic umbrella rib 4, so as to adjust the size of the strip-shaped pores 3, and can extract concentrated particles. Thick effusion.

The upper narrow end of the elastic rib 4 is connected by the connecting ball 16 , so that the connecting ball 16 is abutted or connected with the inner layer of the top end of the elastic shrinkable tube head 2 , thereby ensuring the expansion and contraction of the elastic shrinkable tube head 2 .

A support frame 12 is fixedly connected to the inner tube 9 , and the push-pull column 13 is slidably connected to the support frame 12 to ensure that the push-pull column 13 can slide stably in the inner tube 9 .

The bottom of the push-pull column 13 is connected with a limiting ring 14 to avoid excessive expansion of the elastic rib 4 by pushing the ring piece 7 to push the push-pull column 13 excessively when flushing fluid accumulation.

The upper end of the push-pull column 13 is fixedly connected with a connector 8, the lower narrow end of the elastic rib 4 is fixedly connected to the connector 8, and the thin push rod 6 is also fixedly connected to the connector 8, so that the push column 13 is connected to the elastic rib 4. and push the thin rod 6.

The end of the inner tube 9 is connected with a suction joint 901, and the end of the outer tube 1 is connected with a flushing joint 101, which is convenient for an external flusher and aspirator.

The inner tube 9 is fixedly supported in the outer tube 1 by a plurality of plastic support columns, so as to ensure that the flushing channel 11 between the inner tube 9 and the outer tube 1 is unobstructed.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (9)

1. an anti-blocking catheter, is characterized in that, comprises outer tube (1); the inner tube (9) built into the outer tube (1), in, The inner tube (9) is provided with a suction channel (10), and a flushing channel (11) is formed between the inner tube (9) and the outer tube (1); an elastic shrinkable tube head (2) provided with a plurality of strip-shaped pores (3), which is connected to the mouth of the outer tube (1); Slide the push-pull column (13) arranged in the inner tube (9); A plurality of elastic umbrella ribs (4), the lower end is a narrow end and is connected to the upper end of the push-pull column (13) in a ring shape, and the wide part is located on the inner side wall of the elastic shrinkable tube head (2); The push ring (7) is slidably arranged in the flushing channel (11), and the push-pull column (13) is connected to the push ring (7) by pushing the thin rod (6), in When the rinsing liquid is conveyed through the rinsing channel (11), the rinsing liquid will first push the push ring (7) to move upward, and at this time the push ring (7) drives the push-pull column (13) to move upward by pushing the thin rod (6). The column (13) drives the narrow end of the lower end of the elastic umbrella rib (4) to move upward, and the wide end of the elastic umbrella rib (4) is located at the inner side of the upper end of the elastic shrink tube head (2), and the upward movement is limited. At this time, the elastic umbrella rib (4) Due to its own elasticity, it will support and expand outward, thereby pushing the expanding elastic shrinkable tube head (2), and pushing the ring piece (7) to move up to a certain position. The expansion gap between the sheet (7) and the elastic shrinkable tube head (2) flows out for flushing, and at the same time, the size of the strip-shaped pores (3) on the elastic shrinkable tube head (2) becomes larger. The provided suction channel (10) sucks the effusion. 2 . The anti-blocking catheter according to claim 1 , wherein the elastic shrinkable tube head ( 2 ) has an inverted umbrella-shaped structure, and the head of the elastic shrinkable tube head ( 2 ) faces inward. 3 . The concave shape forms an inverted umbrella-shaped end (202) and an inverted umbrella-shaped opening (201); The lower end of the elastic umbrella rib (4) is a narrow end, the upper end of the elastic umbrella rib (4) is a wide end, and the wide end of the elastic umbrella rib (4) is located at the inverted umbrella-shaped end (202) and the elastic Between the side inner walls of the shrink tube head (2), the inverted umbrella-shaped end head (202) is connected to the push-pull column (13) through the connecting rod (5), and the lower end of the push-pull column (13) is connected to the push-pull column (13). There is a pull cord (15), and the pull cord (15) extends outward through the end of the inner tube (9); When the pulling rope (15) is pulled, the elastic umbrella rib (4) is retracted inward, and the inverted umbrella-shaped end (202) is retracted inward at this time, and the inverted umbrella-shaped opening (201) grabs and squeezes the blood clot and breaks it ; When the flushing liquid is delivered through the flushing channel (11), the elastic shrinkable tube head (2) expands, and the size of the strip-shaped pores (3) on the elastically shrinkable tube head (2) becomes larger. 3. An anti-blocking catheter according to claim 1, characterized in that, a plurality of the elastic ribs (4) are in a structure in which both ends are narrow ends and the middle part is a wide part, and a plurality of the elastic ribs (4) The upper end of the elastic umbrella rib (4) is connected, the narrow end of the upper end of the elastic umbrella rib (4) is abutted/connected with the inside of the top side of the elastic shrink tube head (2), and the width of the middle part of the elastic umbrella rib (4) is wide. The part is in contact with the inner side wall of the elastic shrinkable tube head (2). 4 . The anti-blocking urinary catheter according to claim 3 , wherein the upper narrow ends of the elastic ribs ( 4 ) are connected by connecting balls ( 16 ). 5 . 5. An anti-blocking urinary catheter according to claim 1, characterized in that, a support frame (12) is fixedly connected to the inner tube (9), and the push-pull column (13) is slidably connected to the support frame (12) on. 6 . The anti-clogging urinary catheter according to claim 5 , wherein the bottom of the push-pull column ( 13 ) is connected with a limiting ring ( 14 ). 7 . 7. An anti-blocking urinary catheter according to claim 1, wherein the upper end of the push-pull column (13) is fixedly connected with a connector (8), and the lower narrow end of the elastic umbrella rib (4) It is fixedly connected to the connecting piece (8), and the thin pushing rod (6) is also fixedly connected to the connecting piece (8). 8. The anti-clogging urinary catheter according to any one of claims 1-6, wherein the end of the inner pipe (9) is connected with a suction joint (901), and the outer pipe (1) ) end is connected with a flushing connector (101). 9 . The anti-clogging urinary catheter according to claim 1 , wherein the inner tube ( 9 ) is fixedly supported in the outer tube ( 1 ) by a plurality of plastic support columns. 10 . Make sure that the flushing channel (11) between the inner tube (9) and the outer tube (1) is unobstructed.

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