CN215194827U - Catheter - Google Patents

Abstract

The utility model relates to the technical field of medical instruments and discloses a catheter, which comprises a catheter body and a film layer, wherein the rear end of the catheter body is provided with a urethral catheterization port and an inflation port, the side wall of the front end of the catheter body is provided with a urethral catheterization port and an air bag, one end of the film layer is connected with the catheter body and is close to the rear side of the air bag, the other end of the film layer is a free end, and the film layer is coated on the periphery of the catheter body; when the catheter is inserted into the urethra, the film layer is coated on the periphery of the rear part of the catheter body; when the catheter is pulled out of the urethra, the catheter body drives the film layer, so that the outer wall of the film layer turns inwards from the joint of the catheter body and the film layer extends to be converted into the inner wall of the film layer, and the film layer always covers the catheter body and turns over to be separated from the urethra; adopt the utility model discloses the condition of whole drawing and friction urethra mucosa when can avoiding appearing traditional catheter and extracting has been avoided causing the action of misery and injury to the patient.

Description

Catheter

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a catheter.

Background

The urinary catheter is a common medical instrument and is usually inserted into a urethra of a human body to assist in urination, the urinary catheter usually stays in the urethra for a long time (more than three days), the outer surface of the urinary catheter is completely contacted with the urethra or even bonded with the urethra after insertion, the urinary catheter is difficult to pull out, even the urethral mucosa is torn by the outer wall of the urinary catheter, great damage and pain are caused to a patient, and the patient can suffer from urethritis for months or even for the lifetime.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a catheter can reduce the injury to the urethra when extracting the catheter.

In order to achieve the above object, the utility model provides a catheter, including catheter body and film layer, the rear end of catheter body is equipped with catheterization port and aerifys the port, be equipped with in the catheter body with the catheterization passageway that the catheterization port is connected and with the channel of aerifing that the port is connected of aerifing, the front end lateral wall of catheter body is equipped with the catheterization mouth that communicates with the catheterization passageway and with the gasbag that communicates with the channel of aerifing, one end of film layer with the catheter body is connected and is close to the rear side of gasbag, the film layer cladding is in the periphery of catheter body, the other end of film layer is the free end; when the catheter is inserted into the urethra, the film layer is coated on the periphery of the rear part of the catheter body, and the outer wall of the film layer is in contact with urethral mucosa; when the catheter is pulled out from the urethra, the catheter body is pulled out to drive the film layer, so that the outer wall of the film layer starts to turn inwards from the joint of the catheter body and extends to be converted into the inner wall of the film layer.

As a preferable aspect of the present invention, a lubricant is filled in a gap between the outer periphery of the front portion of the catheter body and the thin film layer.

As a preferred embodiment of the present invention, the film layer is an anti-sticking film.

As the utility model discloses preferred scheme, be equipped with the check valve on the port of aerifing, be equipped with the relief valve on the port of aerifing.

As the utility model discloses preferred scheme, detachably is equipped with the sealing plug on the port of aerifing the port.

As a preferred embodiment of the present invention, at least one inelastic guide wire is embedded in the catheter body along the axial direction thereof.

As a preferred embodiment of the present invention, the guide wire is a bendable plastic or bendable metal wire.

The embodiment of the utility model provides a catheter compares with prior art, and its beneficial effect lies in:

the utility model discloses a be equipped with the thin layer on the pipe body, when making the catheter extract from the urethra, the thin layer that drives when the pipe body extracts and contact with the urethra mucosa inwards overturns gradually, and thin layer and urethra mucosa separate gradually simultaneously to make the thin layer cladding pipe body roll all the time and rotate and break away from the urethra, avoid appearing traditional catheter and follow the whole condition of drawing and rubbing the urethra mucosa when the urethra is extracted, avoid causing the action of misery and injury to the patient.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

Fig. 1 is a schematic structural view of a urinary catheter according to the present invention;

FIG. 2 is a schematic view of the catheter being withdrawn from the urethra;

in the figure, 1 is a catheter body; 11 is a urethral catheterization port; 12 is an inflation port; 13 is a urethral catheterization channel; 4 is a urethral catheterization opening 1; 15 is an air bag; 16 is a sealing plug; 2 is a thin film layer; 21 is a lubricant; and 3 is urethra.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, a catheter according to a preferred embodiment of the present invention includes a catheter body 1 and a film layer 2, the rear end of the catheter body 1 is provided with a urethral catheterization port 11 and an inflation port 12, the catheter body 1 is provided with a urethral catheterization channel 13 connected to the urethral catheterization port 11 and an inflation channel connected to the inflation port 12, the front side wall of the catheter body 1 is provided with a urethral catheterization port 14 communicated with the urethral catheterization channel 13 and a balloon 15 communicated with the inflation channel, the balloon 15 is disposed at one end of the catheter body 1 close to the inflation port 12, one end of the film layer 2 is connected to the catheter body 1 and close to the rear side of the balloon 15, the film layer 2 covers the periphery of the catheter body 1, and the other end of the film layer 2 is a free end; when the catheter is inserted into the urethra 3, the film layer 2 is coated on the periphery of the rear part of the catheter body 1 (namely the periphery of the rear part of the air bag 15 in the catheter body 1), and the outer wall of the film layer 2 is in contact with urethral mucosa; when the catheter is pulled out from the urethra 3, the catheter body 1 is pulled out to drive the film layer 2, so that the outer wall of the film layer 2 begins to turn inwards from the joint of the catheter body 1 and extends to be converted into the inner wall of the film layer 2, and the film layer 2 is enabled to wrap the catheter body 1 all the time to rotate and break away from the urethra 3.

Therefore, the utility model discloses a be equipped with thin layer 2 on pipe body 1, when making the catheter extract from urethra 3, the thin layer 2 that drives when pipe body 1 extracts and contact with the urethra mucosa inwards overturns gradually, and thin layer 2 separates gradually with the urethra mucosa simultaneously to make 1 roll of thin layer 2 cladding pipe body all the time rotate and break away from urethra 3, wholly draw and rub the condition of urethra mucosa when avoiding appearing traditional catheter and extracting from the urethra, avoid causing the action of misery and injury to the patient.

Exemplarily, the front periphery of the catheter body 1 and the gap between the film layers 2 are filled with the lubricant 21, so that the lubricating effect between the catheter body 1 and the film layers 2 is increased, when the catheter is pulled out from the urethra 3, the overlapping adhesion between the film layers 2 is avoided, the catheter is smoothly pulled out from the urethra 3, and the pain of a patient is relieved.

Illustratively, the film layer 2 is an anti-sticking film, which can prevent the film layer 2 from sticking on the urethra 3 and reduce the pain of the patient when the catheter is pulled out from the urethra 3.

Illustratively, a one-way valve is arranged on the inflation port 12, a pressure relief valve is arranged on the inflation port 12, and the air leakage between the inflation channel and the air bag 15 can be avoided through the one-way valve; when the catheter needs to be removed from the urethra 3 of the patient, the deflation valve is opened, and the inflation channel and the air bag 15 are deflated.

Illustratively, a sealing plug 16 is detachably arranged on the port of the inflation port 12, and after the air bag 15 is inflated, the sealing plug 16 seals the port of the inflation port 12, so that the air tightness of the air bag 15 can be further ensured.

Illustratively, at least one inelastic guide wire is embedded in the catheter body 1 along the axial direction of the catheter body, and the catheter body 1 is more easily guided into the urethra 3 by embedding the guide wire so as to relieve the pain of a patient, wherein the guide wire is made of bendable plastic or bendable metal wire.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (7)

1. A catheter is characterized by comprising a catheter body and a film layer, wherein a urethral catheterization port and an inflation port are arranged at the rear end of the catheter body, a urethral catheterization channel connected with the urethral catheterization port and an inflation channel connected with the inflation port are arranged in the catheter body, a urethral catheterization port communicated with the urethral catheterization channel and an air bag communicated with the inflation channel are arranged on the side wall of the front end of the catheter body, one end of the film layer is connected with the catheter body and is close to the rear side of the air bag, the film layer covers the periphery of the catheter body, and the other end of the film layer is a free end; when the catheter is inserted into the urethra, the film layer is coated on the periphery of the rear part of the catheter body, and the outer wall of the film layer is in contact with urethral mucosa; when the catheter is pulled out from the urethra, the catheter body is pulled out to drive the film layer, so that the outer wall of the film layer starts to turn inwards from the joint of the catheter body and extends to be converted into the inner wall of the film layer.

2. The urinary catheter according to claim 1, wherein a gap between the front outer periphery of the catheter body and the film layer is filled with a lubricant.

3. The urinary catheter of claim 1, wherein the film layer is an anti-adhesive film.

4. The urinary catheter according to claim 1, wherein a one-way valve is provided on the inflation port, and a pressure relief valve is provided on the inflation port.

5. A catheter according to claim 4 wherein the port of the inflation port is removably provided with a sealing plug.

6. A catheter according to claim 1 wherein at least one inelastic guide wire is embedded in the catheter body along its axial direction.

7. The urinary catheter according to claim 6, wherein the guide wire is a bendable plastic or bendable wire.

Images