CN216536500U

CN216536500U - Catheter

Info

Publication number: CN216536500U
Application number: CN202122674079.4U
Authority: CN
Inventors: 苏宝艳; 张宏兵; 高飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-17
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a catheter, which comprises a first catheter and a second catheter, wherein the first catheter and the second catheter are telescopically connected; an elastic spiral pipe body is arranged in the first catheter, one end of the elastic spiral pipe body is communicated with the balloon on the first catheter, and the other end of the elastic spiral pipe body extends into the second catheter and is communicated with a through hole in the pipe wall on one side of the second catheter. The catheter can automatically stretch and retract, so that the catheter has certain buffering allowance in the length direction, when the catheter is pulled or pulled by external force, a buffering protection can be performed on a patient, and laceration and damage of the catheter to the urethra and the bladder of the patient are overcome.

Description

Catheter

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a catheter.

Background

At present, urinary catheters are generally used for assisting bladder urination clinically; can insert the bladder so that the drainage urine comes out via the urethra, after the catheter inserted the bladder, be close to catheter head end and have a gasbag fixed catheter and stay in the bladder, and be difficult for deviating from, and the drainage tube is connected urine bag and is collected the urine.

Clinically, patients with unconsciousness, anesthesia and severe illness often need to be kept in an indwelling catheterization to solve the problem of urine retention of the patients. However, some patients feel uncomfortable after indwelling catheterization, the catheter is pulled involuntarily or pulled carelessly in the nursing process; because the bladder end of the catheter is limited by a saccule for preventing the ureter from falling off and the length direction of the catheter is lack of expansion allowance, the catheter can be excessively pulled or frequently pulled to cause urethral laceration and bladder injury; in particular, involuntary catheter pulling is often performed in unconscious and restless patients, urethral damage is often caused by excessive and frequent pulling, which causes pain to the patients, and infection is easily caused to cause troubles in treatment.

Meanwhile, in the existing catheter, the catheter for communicating the saccule is fixed in length, so that the adjustment in the length direction is lacked, and the catheter is not matched with the improved catheter.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks or disadvantages, it is an object of the present invention to provide a urinary catheter.

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

a catheter comprises a first catheter and a second catheter, wherein the first catheter and the second catheter are in telescopic connection through flexible connection; the first catheter is internally provided with an elastic spiral pipe body, one end of the elastic spiral pipe body is communicated with the balloon on the first catheter, and the other end of the elastic spiral pipe body extends into the second catheter and is communicated with a through hole in the pipe wall on one side of the second catheter.

The diameter of the cross section of the second catheter is larger than that of the cross section of the first catheter, and the second catheter is connected to the tail end of the first catheter through flexible connection; when the rear end of the first catheter is sleeved in the second catheter and partially overlapped, a first telescopic allowance is formed between the first catheter and the second catheter; when the tail end of the first urinary catheter is positioned outside the second urinary catheter, the flexible connection has a second telescopic allowance.

A gap is formed between the outer wall of the first catheter and the inner wall of the second catheter, and the flexible connection can be contained in the gap between the first catheter and the second catheter.

The sum of the first telescopic allowance and the second telescopic allowance is equal to the extension length of the catheter, and the extension length of the catheter is 0-80 cm.

The flexible connection is a silica gel film connection, a rubber film connection or a plastic film connection.

The cross section diameter of the second catheter is larger than that of the first catheter, the rear end of the first catheter is sleeved in the second catheter and is partially overlapped, a first limiting boss and a second limiting boss are circumferentially arranged on the outer wall of the first catheter, and a limiting bulge is arranged on the inner wall of the front end of the second catheter; when the catheter is completely stretched, the first catheter is matched with the limiting protrusion, and when the catheter is contracted to the shortest length, the second limiting boss is matched with the limiting protrusion.

The extended length of the catheter is 6-60 cm.

One end of the elastic spiral pipe body, far away from the balloon, extends to the outside of the through hole of the second catheter and is connected with the second catheter into a whole, and a silica gel plug is arranged at the port of the elastic spiral pipe body, far away from the balloon.

The silica gel plug is a puncture silica gel plug.

One end of the elastic spiral pipe body, which is far away from the saccule, is rotatably connected with the through hole of the second catheter through a plastic bearing.

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

the utility model provides a catheter, which has a certain buffer allowance in the length direction through an automatically telescopic catheter, can perform buffer protection on a patient when the catheter is pulled or pulled by external force, and overcomes laceration and damage of the catheter to the urethra and bladder of the patient. Thereby reducing the occurrence of urethral injury and facilitating nursing; in addition, the elastic spiral tube body in the catheter can be stretched in length and has certain retraction force, so that the catheter can automatically retract after being straightened, and is matched with the first catheter and the second catheter in the catheter, and the automatic extension and retraction of the catheter are realized.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a third schematic structural view of the present invention;

fig. 4 is a fourth schematic structural view of the present invention.

In the drawings, 1-first urinary catheter; 2-a second urinary catheter; 3, soft connection; 4-elastic helical tube; 5-a first limit boss; 6-a second limit boss; 7, limiting protrusions; 8-plastic bearing.

Detailed Description

The present invention will now be described in detail with reference to the drawings, wherein the described embodiments are only some, but not all embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.

Embodiment 1, as shown in fig. 1 and 2, a catheter, including first catheter 1 and second catheter 2, first catheter 1 is linked together through flexible coupling 3 (flexonics) with second catheter 2 for first catheter 1 and second catheter 2 telescopic connection, be provided with elasticity heliciform body 4 in the first catheter 1, the one end of elasticity heliciform body 4 is linked together with the sacculus on the first catheter 1, and the other end (the one end that sacculus was kept away from to elasticity heliciform body 4 promptly) extends to in the second catheter 2 to be linked together with the through-hole on the pipe wall of second catheter 2 one side.

In this embodiment, the elastic spiral tube 4 is located in the catheter, and the tube is designed to be a spiral structure, and has a certain length to be straightened and a certain retraction force to ensure that the tube can be automatically retracted after being straightened.

Preferably, the flexible connection 3 is a silica gel film connection, a rubber film connection or a plastic film connection; in this embodiment, flexible coupling 3 all has the effect of extension catheter for the catheter has certain buffering surplus in length direction, simultaneously with 4 looks adaptations of the interior elasticity heliciform body of catheter, when external force pulls or drags the catheter, can carry out a buffering protection to the patient, overcome laceration, the damage that the catheter caused patient's urethra and bladder.

Preferably, based on the above embodiment, the flexible connection 3 may also be a silicone flexible connection, a rubber flexible connection, or a plastic flexible connection; in this embodiment, the flexible connections 3 have an effect of extending the catheter and a flexible fold structure, so that the catheter has a certain length and can be straightened, and has a certain retraction force, and the catheter can be automatically retracted after being straightened; in addition, the flexible soft fold structure has the characteristics of a soft body, and also has a tubular framework structure, so that liquid can be conveniently discharged, and meanwhile, the flexible spiral pipe body 4 can smoothly stretch and move when being stretched in the catheter.

Example 2 based on the above example 1, as shown in fig. 1-2, the cross-sectional diameter of the second urinary catheter 2 is larger than that of the first urinary catheter 1, the second urinary catheter 2 is connected to the tail end of the first urinary catheter 1 through a flexible joint 3, the length of the urinary catheter can be extended when stretching is carried out, and the extended length (i.e. the total stretching margin) of the urinary catheter is 0-80 cm. In the length direction of the catheter, when the rear end of the first catheter 1 is sleeved in the second catheter 2, the flexible connection 3 extends towards the tail part of the second catheter 2, the first catheter 1 and the second catheter 2 have a certain overlapping part in the length direction, and a part of telescopic allowance (first telescopic allowance) is stored between the first catheter 1 and the second catheter 2; the catheter in the utility model can be extended by 0-40 cm by stretching, a gap is arranged between the outer wall of the first catheter 1 and the inner wall of the second catheter 2, and the flexible connection 3 structure can be accommodated in the gap and can be extended or folded in the gap along with the extension and retraction of the catheter; when the tail end of the first catheter 1 is positioned outside the second catheter 2 by stretching in the length direction of the catheter, the flexible connection 3 is in a contracted state and stores another part of the telescopic allowance (second telescopic allowance), and when the flexible connection 3 extends towards the saccule direction of the first catheter 1, the catheter can be further extended by 5-40 cm. It should be noted that, in this embodiment, the sum of the first remaining telescopic amount and the second remaining telescopic amount is equal to the total remaining contraction amount of the urinary catheter (i.e. the extended length of the urinary catheter).

When the rear end of the first catheter 1 is sleeved in the second catheter 2, a gap is formed between the outer wall of the first catheter 1 and the inner wall of the second catheter 2, and the flexible connection 3 structure can be accommodated in the gap and can be stretched or folded in the gap along with the stretching and retracting of the catheters.

The flexible connection 3 has a flexible length that is adapted to the overlapping portion of the first catheter 1 and the second catheter 2. The flexible length of the catheter is matched with the elastic spiral pipe body 4 in the first catheter 1 and the second catheter 2.

Example 3, based on the above example 1, as shown in fig. 3 and 4, the cross-sectional diameter of the second urinary catheter 2 is larger than that of the first urinary catheter 1, and the flexible length of the flexible connection 3 is 6 cm-60 cm; when the rear end of the first catheter 1 is sleeved in the second catheter 2, a certain overlapping part is formed, so that the first catheter 1 and the second catheter 2 have telescopic allowance, when the catheters are completely stretched, the limiting bulge 7 is matched with the limiting bulge 5 for limiting, and the catheter in the utility model can be stretched to be 6-60 cm long; a first limiting boss 5 and a second limiting boss 6 are circumferentially arranged on the outer wall of the first catheter 1, and a limiting bulge 7 is arranged on the inner wall of the front end of the second catheter 2; when the catheter is completely stretched, the first catheter 1 is matched with the limiting bulge 5, and the second catheter 2 is prevented from sliding off the first catheter 1. The second limiting boss 6 is positioned at the front end of the first limiting boss 5, and a port which is far away from one end of the first catheter 1 far away from the saccule is 60 cm; when the catheter contracts to the shortest, the second limiting boss 6 is matched with the limiting bulge 7 in the second catheter 2 for limiting, and the length part of the overlapped part of the first catheter 1 and the second catheter 2 is the longest.

It should be noted that, in the above embodiment, the end of the flexible connection 3 connected to the first urinary catheter 1 is located outside the first limit boss 5, that is, the end of the flexible connection 3 is connected to the port of the first urinary catheter 1 far from the balloon; the end of the flexible connection 3 connected with the second catheter 2 is located on the inner side of the limiting bulge 7, that is, the limiting bulge 7 in the second catheter 2 is located at the end of the connecting end of the second catheter 2. In addition, the flexible connection 3 is fixedly connected with the first catheter 1 and the second catheter 2 to form a whole.

Based on the above embodiment, as shown in fig. 3 and 4, one end of the elastic spiral tube body 4 away from the balloon extends to the outside of the through hole of the second urinary catheter 2 and is connected with the second urinary catheter 2 into a whole; the connecting structure of the catheter is improved, a catheter joint is omitted, the connecting relation is simplified, the sealing performance of the catheter is improved, and the production cost is reduced. But also overcomes the defects that the prior catheter and the catheter joint have larger connecting structure and are easy to be held and pulled by the hands of patients. Preferably, a silica gel plug is arranged at the port of the elastic spiral pipe body 4 far away from the balloon; further, the silica gel plug is a puncture silica gel plug, the silica gel plug can be punctured through an injector, liquid or gas can be injected into the elastic spiral tube body 4, and the silica gel plug is closed to seal when the injector is pulled out, so that on one hand, the injector can conveniently inflate or fill physiological saline into the balloon at the front end of the first catheter 1 through the elastic spiral tube body 4; and on the other hand facilitates port sealing of the resilient helical tube body 4 when filling is complete.

Or one end of the elastic spiral pipe body 4 far away from the saccule is rotatably connected with the through hole of the second catheter 2 through a plastic bearing 8; further plastic bearing 8 is embedded in the through hole on the second catheter 2 in a sealing mode and connected in a sealing mode, and the port of the elastic spiral pipe body 4 is connected with the inner ring of the plastic bearing 8 in a sealing mode. Make the one end that elasticity heliciform body 4 kept away from the sacculus can carry out 360 rotations for second catheter 2 in the through-hole of second catheter 2, can eliminate the moment of torsion when elasticity heliciform body 4 is stretching, the in-process that contracts, overcome the moment of torsion that elasticity heliciform body 4 produced in the motion process and drag the bladder, further reduced the injury of catheter to sick urethra and bladder, alleviateed patient's misery.

The catheter can automatically stretch and retract when a patient or medical personnel carelessly pulls the catheter, so that the catheter has a certain buffering allowance in the length direction, when the catheter is pulled or pulled by external force, the patient can be buffered and protected, and laceration and damage of the catheter to the urethra and the bladder of the patient are overcome. Thereby reducing the occurrence of urethral injury, facilitating nursing, reducing infection and relieving the pain of patients.

It will be appreciated by those skilled in the art that the above embodiments are merely preferred embodiments of the utility model, and thus, modifications and variations may be made in the utility model by those skilled in the art, which will embody the principles of the utility model and achieve the objects and objectives of the utility model while remaining within the scope of the utility model.

Claims

1. A catheter is characterized by comprising a first catheter (1) and a second catheter (2), wherein the first catheter (1) and the second catheter (2) are telescopically connected through a flexible connection (3); wherein, be provided with elasticity heliciform body (4) in first catheter (1), the sacculus on one end and the first catheter (1) of elasticity heliciform body (4) is linked together, and the other end extends to in second catheter (2) to be linked together with the through-hole on the pipe wall of second catheter (2) one side.

2. A catheter according to claim 1, characterized in that the cross-sectional diameter of the second catheter (2) is larger than the cross-sectional diameter of the first catheter (1), and that the second catheter (2) is connected to the tail end of the first catheter (1) by a flexible connection (3); when the rear end of the first catheter (1) is sleeved on the second catheter (2) and the parts are overlapped, a first telescopic allowance is formed between the first catheter (1) and the second catheter (2); when the tail end of the first catheter (1) is positioned outside the second catheter (2), the flexible connection (3) has a second telescopic margin.

3. A catheter according to claim 2, wherein there is a gap between the outer wall of the first catheter (1) and the inner wall of the second catheter (2), and wherein the flexible connection (3) is receivable in the gap between the first catheter (1) and the second catheter (2).

4. A catheter according to claim 2 wherein the sum of said first and second margins of stretchability is equal to the extended length of the catheter, said catheter having an extended length of from 0 to 80 cm.

5. A catheter according to claim 1 or 2, wherein the flexible connection (3) is a silicone film connection, a rubber film connection or a plastic film connection.

6. The catheter according to claim 1, characterized in that the cross-sectional diameter of the second catheter (2) is larger than that of the first catheter (1), the rear end of the first catheter (1) is sleeved on the second catheter (2) and is partially overlapped, the outer wall of the first catheter (1) is circumferentially provided with a first limit boss (5) and a second limit boss (6), and the inner wall of the front end of the second catheter (2) is provided with a limit bulge (7); when the catheter is completely stretched, the first catheter (1) is matched with the limiting protrusion (7), and when the catheter is contracted to the shortest length, the second limiting boss (6) is matched with the limiting protrusion (7).

7. A catheter according to claim 6 wherein the extended length of the catheter is from 6 to 60 cm.

8. A catheter according to claim 1, wherein one end of the elastic spiral tube body (4) far away from the balloon extends out of the through hole of the second catheter (2) and is connected with the second catheter (2) into a whole, and a silicone plug is arranged at the port of the elastic spiral tube body (4) far away from the balloon.

9. The urinary catheter according to claim 8, characterized in that the silicone plug is a puncture silicone plug.

10. A catheter according to claim 1, wherein the end of the elastic spiral tube body (4) far from the balloon is rotatably connected with the through hole of the second catheter (2) through a plastic bearing (8).