CN212914176U

CN212914176U - Catheter with arc-shaped guide head

Info

Publication number: CN212914176U
Application number: CN202020731733.3U
Authority: CN
Inventors: 胡林义; 王颖佳; 魏海彬; 陈昭典
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-04-09
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a take catheter of arc guide head belongs to the catheter field, including the catheter body, the head of catheter body is provided with the arc guide head, the radian of arc guide head is greater than five third circles, the inboard of arc guide head is equipped with a plurality of first drainage holes. The utility model has an arc-shaped catheter head, so that the tip of the catheter is towards the expanded air bag when the catheter works, the contact with the bladder mucosa, especially the top of the back wall and the top wall of the bladder is reduced, and the occurrence of adverse events such as perforation of the bladder abdominal cavity is reduced to the maximum extent; the first drainage hole is formed in the inner side of the arc-shaped guide head, so that the outer surface of the arc-shaped guide head, which is in contact with the bladder mucosa, is smooth, and the mechanical stimulation to the bladder mucosa is also obviously reduced under the condition of keeping good drainage; the shape of the head part conforms to the physiological radian of the urethra of a human body and a guide wire with an external fixing clip is matched with the catheter, so that the catheter is more easily inserted into the bladder through the urethra; set up the second drainage hole and enable catheterization efficiency higher.

Description

Catheter with arc-shaped guide head

Technical Field

The utility model relates to a catheter field, concretely relates to take catheter of arc guide head.

Background

The catheter is a common medical apparatus and is widely applied to: 1. urinary retention due to various lower urinary tract obstruction; 2. neurogenic bladder or bladder detrusor weakness; 3. rescue of critically ill or shock patients; 4. various types of surgery, especially urological surgery. For patients who are kept in catheterization for a long time, the existing catheter has the defects of high irritation, susceptibility to infection and the like. The catheter tip is continuously in contact with the mucous membrane of the bladder and mechanically irritates (especially on the back wall and the top wall of the bladder), and the contacted mucous membrane of the bladder is often congested, hemorrhagic, edematous, adenoid hyperplasia and the like. Especially hematuria and mucosa hyperplasia, can greatly interfere the differential diagnosis of bladder tumors. On the other hand, peritoneal perforation of the bladder related to long-term indwelling catheterization has been reported clinically. In clinic, the situation that the head end of the catheter stimulates the surgical wound surface to cause bladder perforation to the abdominal cavity after bladder tumor electrosurgery often occurs. Peritoneal perforation of the bladder is a more serious perforation of the bladder, which is life threatening in serious cases because urine easily seeps to the abdominal cavity to cause secondary peritonitis. Conservative treatment is a common practice, while unobstructed urinary drainage is critical to conservative treatment. However, the catheter tip, whether straight or curved, can cause poor urine drainage or aggravate the puncture if the tip is inserted into the puncture.

CN202270246U discloses a catheter with a bent guide head, wherein the guide head and a drainage tube are provided with an included angle and are bent to conform to the structure of the urethra and the bladder of a human body, and when the catheter is used, the guide head is more easily inserted into the bladder by adding a proper rotation to thrust, so that the pain of a patient is reduced. However, like straight-tipped catheters, these catheters do not prevent or address the problem of bladder perforation associated with the catheter.

CN2310584Y discloses a medical "J" shaped catheter device, the front end part of which exhibits a curved elastic section, the purpose of which is mainly to fix the catheter. The catheter is easy to slip due to no fixation of the air bag, and the plurality of side holes of the catheter are positioned on the outer surface of the catheter, so that the outer surface is rough, the friction between the guide head and the bladder wall is large, and the long-term indwelling injury is large.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a catheter with an arc-shaped guide head. The specific technical scheme is as follows:

the utility model provides a take catheter of arc guide head, includes the catheter body, the head of catheter body is provided with the arc guide head, the radian of arc guide head is greater than three fifths of a circle, the inboard of arc guide head is equipped with a plurality of first drainage holes.

Furthermore, the rear end of the catheter body is provided with a urethral catheterization connector, an irrigation connector and an inflation/water filling connector, and the catheter body is internally provided with a urethral catheterization channel, an irrigation channel and an inflation/water filling channel.

Furthermore, the rear end of the catheter body is provided with a catheter connector and an inflation/water filling connector, and a catheter channel and an inflation/water filling channel are arranged in the catheter body.

Furthermore, a second drainage hole is formed in the catheter body, close to the arc-shaped guide head.

Further, an air bag is arranged on the catheter body and is positioned behind the arc-shaped guide head.

Furthermore, a flushing opening is formed in the catheter body, which is close to the arc-shaped guide head.

Furthermore, the urethral catheterization joint is communicated with the first drainage hole and the second drainage hole through the urethral catheterization channel.

Further, the inflation/water filling joint is communicated with the air bag through the inflation/water filling channel.

Further, the flushing joint is communicated with the flushing port through the flushing channel.

The urethral catheter is matched with the guide wire for use, and the head shape of the guide wire conforms to the physiological radian of the urethra of a human body; after the guide wire is completely inserted into the catheter body, the guide wire is fixed through the outer fixing clamp.

The utility model has the advantages of it is following:

1. the catheter is provided with the arc-shaped guide head, so that the tip of the catheter faces to the expanded air bag when the catheter works, the propping contact with the bladder mucosa, particularly the rear wall and the top wall of the bladder is reduced, and the occurrence of adverse events such as bladder abdominal cavity perforation is reduced to the maximum extent.

2. The first drainage hole is formed in the inner side of the arc-shaped guide head, so that the outer surface of the arc-shaped guide head contacting with the bladder mucosa is smooth, and the mechanical stimulation to the bladder mucosa is remarkably reduced under the condition of keeping good drainage.

3. The shape of the arc-shaped guide head conforms to the physiological radian of the urethra of a human body and the guide wire with the outer fixing clamp is matched with the catheter, so that the catheter is easier to insert into the bladder through the urethra.

4. The arrangement of the second drainage holes can ensure that the urethral catheterization efficiency of the urethral catheter is higher.

Drawings

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

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

fig. 3 is a schematic view of the present invention inserted into a guide wire;

in the figure: 1-catheter tube body, 2-arc guide head, 3-air bag, 4-flushing joint, 5-catheter joint, 6-inflation/water filling joint, 7-first drainage hole, 8-guide wire, 9-external fixation clamp, 10-second drainage hole and 11-flushing opening.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in figures 1 and 2, the catheter with the arc-shaped guide head of the utility model comprises a catheter tube body 1, the head of the catheter tube body 1 is provided with the arc-shaped guide head 2, and the radian of the arc-shaped guide head 2 is larger than three fifth of a circle. The inboard of arc leading 2 is equipped with a plurality of first drainage holes 7. A second drainage hole 10 is formed in the catheter body 1 and is close to the arc-shaped guide head 2, an air bag 3 is arranged on the catheter body 1, and the air bag 3 is located behind the arc-shaped guide head 2.

As shown in fig. 1, for the three-cavity catheter, a flushing port 11 is arranged on the catheter body 1 adjacent to the arc-shaped guide head 2, a catheter joint 5, a flushing joint 4 and an inflation/water filling joint 6 are arranged at the rear end of the catheter body 1, a catheter channel, a flushing channel and an inflation/water filling channel are arranged in the catheter body 1, the catheter joint 5 is communicated with a first drainage hole 7 and a second drainage hole 10 through the catheter channel, the flushing joint 4 is communicated with the flushing port 11 through the flushing channel, and water is injected through the flushing joint 4 to flush filth such as blood clots in the bladder. The inflation/water filling connector 6 is communicated with the air bag 3 through the inflation/water filling channel, and the air bag 3 can be expanded by inflating or filling water into the inflation/water filling connector 6 for fixing the catheter in the bladder. For a dual lumen catheter, as shown in fig. 2, the irrigation function is omitted and the diameter of the catheter channel can be set larger.

As shown in fig. 3, when the utility model is used, the guide wire 8 is inserted into the urethral catheterization channel of the urethral catheter, the shape of the head of the guide wire 8 conforms to the physiological radian of the urethra of a human body, the guide wire 8 has certain rigidity, the urethral catheter is usually made of silica gel or latex, and has certain elasticity after being shaped, and the guide wire 8 is inserted to deform the arc-shaped guide head 2 of the urethral catheter into a shape suitable for being inserted into the urethra, thereby facilitating the insertion of the urethral catheter; the tail end of the guide wire 8 is provided with an outer fixing clamp 9, after the guide wire 8 is inserted into the head end of the catheter, the outer fixing clamp 9 is clamped on the catheter, the guide wire is prevented from slipping, the catheter and the guide wire are integrated, and the insertion is convenient; after the catheter is inserted into the bladder, the outer fixing clamp 9 is opened, the position of the catheter is kept unchanged, the guide wire 8 is taken out, and the arc-shaped guide head 2 of the catheter is restored to be arc-shaped. The balloon 3 is then inflated or filled with water through the inflation/filling connector 6, so that the catheter is fixed in the bladder. Finally, the drainage bag is connected with the urine drainage connector 5. Or the flushing liquid is received through the flushing connector 4 according to the requirement to continuously flush the bladder.

Claims

1. The utility model provides a take catheter of arc guide head, includes catheter body (1), its characterized in that: the head of catheter body (1) is provided with arc guide head (2), the radian of arc guide head (2) is greater than the third of fifth circle, the inboard of arc guide head (2) is equipped with a plurality of first drainage holes (7).

2. The urinary catheter with the arc-shaped guide head according to claim 1, wherein: the rear end of the catheter body (1) is provided with a catheter connector (5), an irrigation connector (4) and an inflation/water filling connector (6), and a catheter channel, an irrigation channel and an inflation/water filling channel are arranged in the catheter body (1).

3. The urinary catheter with the arc-shaped guide head according to claim 1, wherein: the rear end of the catheter body (1) is provided with a catheter connector (5) and an inflation/water filling connector (6), and a catheter channel and an inflation/water filling channel are arranged in the catheter body (1).

4. A catheter with an arc-shaped guide head according to claim 2 or 3, wherein: and a second drainage hole (10) is formed in the catheter body (1) and is close to the arc-shaped guide head (2).

5. A catheter with an arc-shaped guide head according to claim 2 or 3, wherein: the catheter body (1) is provided with an air bag (3), and the air bag (3) is positioned behind the arc-shaped guide head (2).

6. The urinary catheter with the arc-shaped guide head according to claim 2, wherein: an irrigation opening (11) is formed in the catheter body (1) and is close to the arc-shaped guide head (2).

7. The urinary catheter with the arc-shaped guide head according to claim 4, wherein: the urethral catheterization joint (5) is communicated with the first drainage hole (7) and the second drainage hole (10) through the urethral catheterization channel.

8. The urinary catheter with the arc-shaped guide head according to claim 5, wherein: the inflation/water filling joint (6) is communicated with the air bag (3) through the inflation/water filling channel.

9. The urinary catheter with the arc-shaped guide head according to claim 6, wherein: the flushing joint (4) is communicated with the flushing port (11) through the flushing channel.

10. The urinary catheter with the arc-shaped guide head according to claim 1, wherein: the urethral catheter also comprises a guide wire (8) and an outer fixing clip (9), wherein the outer fixing clip (9) is arranged at the tail end of the guide wire (8), the urethral catheter and the guide wire (8) are matched for use, and the head of the guide wire (8) is in accordance with the physiological radian of the urethra of a human body; after the guide wire (8) is completely inserted into the catheter body (1), the guide wire (8) is fixed through the outer fixing clamp (9).