CN214807775U

CN214807775U - Three-cavity catheter with guiding and limiting structure

Info

Publication number: CN214807775U
Application number: CN202121146630.1U
Authority: CN
Inventors: 顾月华; 刘箐
Original assignee: Renji Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Renji Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-11-23
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to the technical field of catheters, and discloses a three-cavity catheter with a guiding and limiting structure, which comprises a catheter body, wherein a drainage tube is arranged inside the catheter body, and a washing pipe and a water injection pipe are arranged outside one end of the catheter body, the water injection pipe and the washing pipe are both fixedly communicated with the drainage pipe, the outer wall of the other end of the catheter body is provided with a water bag, the top of the other end of the catheter body is fixedly communicated with a catheter head, the outside of the catheter head is provided with a plurality of urine inlet holes, the utility model fixes the catheter on the leg of the patient through the mutual matching of the second elastic belt, the third elastic belt, the second fixing ring and the third fixing ring, it is reliable in fixation, is not easy to pull the catheter body when connecting the urine bag and injecting water or flushing the bladder, and the catheter does not need to be replaced, so that the situation that the catheter is accidentally pulled due to the replacement of the adhesive tape is reduced.

Description

Three-cavity catheter with guiding and limiting structure

Technical Field

The utility model relates to a human articles for daily use especially relate to medical instrument, especially a three chamber catheters with guide and limit structure.

Background

After transurethral enucleation of prostate, an indwelling three-cavity catheter is needed to be used for bladder irrigation and drainage, and the balloon of the catheter is utilized to press the surface of the prostate wound to play a role in hemostasis. The three-cavity catheter needs to realize the following 2 functions: (1) the catheter can be placed in the tube cavity of the three-cavity catheter through guide wires. (2) After the catheter is kept, the catheter needs to be continuously pulled to prevent the balloon from sliding into the bladder, so that the balloon is forced to press the prostate urethra, and the compression hemostasis purpose is achieved. In the prior art, after transurethral enucleation of the prostate, the physician punctures the top end of the catheter with a needle on the operating table, thereby placing the guide wire. The catheter is pulled to the farthest length after the catheter is left, and the catheter is tied and tied tightly by using wet gauze at the urethral orifice to play a role in fixing, so that the air bag is prevented from sliding into the bladder, and if the effect is not good, the far end of the catheter is fixed with the skin of the thigh by using adhesive tapes. Indwelling catheterization takes up to 2 weeks. Puncturing the catheter with a needle in the procedure wastes procedure time. The urethral orifice and the clothes and trousers of the patient are uncomfortable in continuous moisture feeling and may have skin problems, and the adhesive plaster is easy to damage the skin after being fixed on the skin for a long time. Urinary catheters are inconvenient to care every day.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three chamber catheters with guide and limit structure to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a three-cavity catheter with a guiding and limiting structure comprises a catheter body, wherein a limiter is movably connected to the outer portion of the catheter body, a silica gel sheet covers the front side of the limiter, a drainage tube is arranged inside the catheter body, a flushing tube and a water injection tube are arranged outside the rear end of the catheter body, the water injection tube and the flushing tube are fixedly communicated with the drainage tube, a water bag is arranged on the outer wall of the front end of the catheter body, a catheter head is fixedly communicated with the top of the front end of the catheter body, a plurality of urine inlet holes are formed in the outer portion of the catheter head and fixedly communicated with the catheter body, a first elastic belt is fixedly connected to the outer wall of one end of the water injection tube, a first fixing ring is arranged outside the flushing tube and matched with the first elastic belt, the first elastic band and the first fixing ring facilitate fixing of the flushing pipe and the water injection pipe.

As a further aspect of the present invention: the utility model discloses a catheter, including catheter body, first end, second end, third end, the first end of catheter body is gone up the first end of first end, the first end of second end is gone up the first end of first end, the first end is gone up the first end of second end, the second end is gone up the first end of second end, the first end is gone up the first end of first end, the first end is gone up the first end, the first end is gone up the first end fixed ring of the one of the second elastic band, the one of the one end, the one of the one end is all fixed ring is gone up the one, the one of the one the catheter body, the second elastic band, the one end of catheter body is fixed ring, the one the catheter body, the one.

As a further aspect of the present invention: the first elastic band, the second elastic band and the equal fixedly connected with magic subsides of one end of third elastic band, the magic is pasted and is convenient for first elastic band, the second elastic band with the fixed of third elastic band.

As a further aspect of the present invention: the water sac is conical, the small-diameter end of the water sac is close to the front end of the catheter body, and the water sac is conical and can effectively prevent urine from overflowing.

As a further aspect of the present invention: this internal main cavity room and the accessory cavity of being provided with of catheter, and main cavity room and accessory cavity each other do not communicate, the derivation of the urine of being convenient for of main cavity room.

As a further aspect of the present invention: the length of the drainage tube is greater than the lengths of the flushing tube and the water injection tube.

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

1. the water sac is arranged into a cone shape, the water sac is in the cone shape after being inflated by water injection, the small-diameter end of the water sac is positioned at the inner opening of the urethra, the inner wall of the urinary bladder is not required to be pressed tightly while urine overflow is effectively prevented, in addition, the first elastic belt and the first fixing ring are additionally arranged, and the flushing pipe and the water injection pipe can be fixed on the leg of a patient through the matching of the first fixing ring and the first elastic belt, so that the water sac is very convenient;

2. through the second elastic band, the third elastic band that set up, the solid fixed ring of second and the solid fixed ring of third mutually support, fix the catheter in patient's shank, it is fixed reliable, when connecting urine bag, water injection or washing bladder, difficult tractive catheter body, and need not to change, reduced the catheter that leads to because of changing the sticky tape and taken place by the condition of unexpected tractive.

Drawings

FIG. 1 is a cross-sectional view of an overall structure of a three-lumen catheter with a guiding and limiting structure;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is an enlarged view at B in fig. 1.

In the figure: 1. a catheter body; 2. a drainage tube; 3. a flush tube; 4. a water injection pipe; 5. a water bladder; 6. a urethral catheterization head; 7. a urine inlet hole; 8. a first elastic band; 9. magic tape; 10. a first retaining ring; 11. a second elastic band; 12. a third elastic band; 13. a second retaining ring; 14. and a third fixing ring.

Detailed Description

Examples

Referring to fig. 1-3, the utility model relates to a three-cavity catheter with guiding and limiting structure, which comprises a catheter body 1, a limiter 15 is movably connected to the outside of the catheter body 1, a silicone sheet (not shown) covers one side of the limiter 15, a drainage tube 2 is arranged inside the catheter body 1, a flushing tube 3 and a water injection tube 4 are arranged outside one end of the catheter body 1, the water injection tube 4 and the flushing tube 3 are both fixedly communicated with the drainage tube 2, a water sac 5 is arranged on the outer wall of the other end of the catheter body 1, a catheter head 6 is fixedly communicated with the top of the other end of the catheter body 1, a plurality of urine inlet holes 7 are arranged outside the catheter head 6, the plurality of urine inlet holes 7 are fixedly communicated with the catheter body 1, a first elastic band 8 is fixedly connected to the outer wall of one end of the water injection tube 4, a first fixing ring 10 is arranged outside the flushing tube 3, first solid fixed ring 10 cooperatees with first elastic webbing 8, first elastic webbing 8 and first solid fixed ring 10 are convenient for fixed to washing pipe 3 and water injection pipe 4, stopper 15 is made by the rubber circle, stopper 15's internal diameter is less than the external diameter of catheter, utilize frictional force between rubber circle and the catheter, the urethral orifice withstands stopper 15 and plays the continuous tractive effect of catheter, the silicone piece is the intermediate layer between urethral orifice skin and the stopper 15, make by the silica gel material, it is circular, the pressure on the urethral orifice is alleviateed to its material is soft, thereby prevent the injury of apparatus nature pressure.

In fig. 1-3: the upper surface wall of one end of the catheter body 1 is fixedly connected with a second elastic belt 11 and a third elastic belt 12, the lower surface wall of one end of the catheter body 1 is fixedly connected with a second fixing ring 13 and a third fixing ring 14, the second fixing ring 13 and the third fixing ring 14 are matched with the second elastic belt 11 and the third elastic belt 12, the second elastic belt 11, the third elastic belt 12, the second fixing ring 13 and the third fixing ring 14 are convenient for fixing the catheter body 1, one ends of the first elastic belt 8, the second elastic belt 11 and the third elastic belt 12 are fixedly connected with magic tapes 9, the magic tapes 9 are convenient for fixing the first elastic belt 8, the second elastic belt 11 and the third elastic belt 12, the water bag 5 is conical after being injected with water and expanded, the small diameter end of the magic tape is close to the front end of the catheter body 1, the water bag 5 is conical and can effectively prevent overflowing, a main chamber and an auxiliary chamber are arranged in the catheter body 1, and main cavity room and accessory cavity do not communicate each other, and the derivation of the urine of being convenient for in the main cavity room, the length of drainage tube 2 is greater than the length of flushing pipe 3 and water injection pipe 4.

The utility model discloses a theory of operation is: when in use, the device is firstly installed on a patient, one end of the catheter body 1 is connected with a urine bag, then water is injected into the water bag 5 through the water injection pipe 4, the water bag 5 is swollen due to water filling, the water bag 5 is conical when swollen, the small diameter end of the water bag is positioned at the inner opening of the urethra, the inner wall of the urinary bladder is not required to be pressed when the urine overflow is effectively prevented, then the urethral catheterization head 6 is provided with a plurality of urine inlet holes 7, the urine enters the urethral catheterization head 6 through the urine inlet holes 7 and then is led out through the catheter body 1 to enter the urinary bag, the patient can be conveniently catheterized, the urine inlet holes 7 can be effectively prevented from being blocked through the arranged urine inlet holes 7, the fixation is reliable, when the urinary bag is connected, then the catheter body 1 is fixed on the leg of the patient through the second elastic belt 11, the third elastic belt 12, the second fixing ring 13 and the third fixing ring 14, when the water is injected or the urinary bladder is flushed, the urethral catheter body 1 is not easy to be pulled, and does not need to be replaced, so that the accidental pulling of the urethral catheter caused by replacing the adhesive tape is reduced. The guide wire can directly pass through the urine inlet hole 7 at the front end of the urethral catheterization head 6 in the operation, and the top end of the urethral catheter does not need to be punctured by a needle head temporarily.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A three-cavity catheter with a guiding and limiting structure comprises a catheter body (1) and is characterized in that a limiter is movably connected to the outer portion of the catheter body (1), a silica gel sheet covers the front side of the limiter, a drainage tube (2) is arranged inside the catheter body (1), a flushing tube (3) and a water injection tube (4) are arranged outside the rear end of the catheter body (1), the water injection tube (4) and the flushing tube (3) are fixedly communicated with the drainage tube (2), a water sac (5) is arranged on the outer wall of the front end of the catheter body (1), a catheter head (6) is fixedly communicated with the top of the front end of the catheter body (1), a plurality of urine inlet holes (7) are formed in the outer portion of the catheter head (6), and the urine inlet holes (7) are fixedly communicated with the catheter body (1), the one end outer wall fixedly connected with of water injection pipe (4) has first elastic webbing (8), the outside of flushing pipe (3) is provided with first solid fixed ring (10), first solid fixed ring (10) with first elastic webbing (8) cooperate.

2. The three-cavity urinary catheter with the guiding and limiting structure according to claim 1, wherein the upper surface wall of one end of the urinary catheter body (1) is fixedly connected with a second elastic band (11) and a third elastic band (12), the lower surface wall of one end of the urinary catheter body (1) is fixedly connected with a second fixing ring (13) and a third fixing ring (14), and the second fixing ring (13) and the third fixing ring (14) are matched with the second elastic band (11) and the third elastic band (12).

3. The three-cavity urinary catheter with the guiding and limiting structure according to claim 2, wherein one end of the first elastic belt (8), one end of the second elastic belt (11) and one end of the third elastic belt (12) are fixedly connected with a magic tape (9).

4. The three-cavity catheter with the guiding and limiting structure as recited in claim 1, wherein the water bag (5) is tapered, and the small diameter end thereof is close to the front end of the catheter body (1).

5. The three-cavity catheter with the guiding and limiting structure according to claim 1, wherein a main cavity and a secondary cavity are arranged in the catheter body (1), and the main cavity and the secondary cavity are not communicated with each other.

6. A three-lumen catheter with a guiding and limiting structure according to claim 1, characterized in that the length of the drainage tube (2) is longer than the length of the irrigation tube (3) and the water injection tube (4).