CN106730255B

CN106730255B - Indwelling catheter and catheterization assembly

Info

Publication number: CN106730255B
Application number: CN201611218307.4A
Authority: CN
Inventors: 刘利龙; 陈红平; 杨军; 郭清纯; 鲍海宾; 朱柳; 曾玉兰; 范宏杰; 孙加印; 童军伟
Original assignee: Tongji Medical College of Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology
Priority date: 2016-12-26
Filing date: 2016-12-26
Publication date: 2022-06-21
Anticipated expiration: 2036-12-26
Also published as: CN106730255A

Abstract

An indwelling catheter and a catheterization assembly belong to the field of urinary catheters in clinical urology surgery. This keep somewhere catheter includes the catheter body, but the end of catheter body is equipped with catheterization hole and the utricule of keeping somewhere that contracts, keeps somewhere to be equipped with the cavity in the utricule, the front end of catheter body be equipped with the catheterization interface of catheterization hole intercommunication and with keep somewhere the utricule interface of utricule intercommunication, the outer wall of catheter body is equipped with the recess, be equipped with the washing passageway with the recess intercommunication in the catheter body, the one end that the catheter body kept away from the catheterization hole is equipped with the washing mouth with washing passageway intercommunication. The indwelling catheter can be used for effectively flushing and disinfecting the urethra of a patient who is indwelling the catheter, and preventing, reducing and treating urethral infection. The invention also provides a catheterization assembly with the indwelling catheter.

Description

Indwelling catheter and catheterization assembly

Technical Field

The invention relates to the field of urinary catheters in clinical urology surgery, in particular to an indwelling catheter and a catheterization assembly.

Background

An indwelling catheter is a commonly used medical instrument which is mainly used for assisting patients who cannot take care of urination to discharge urine. Keep somewhere catheter commonly used generally includes the catheterization body that the end was equipped with catheterization hole and collapsible cavity utricule, the front end of catheterization body is equipped with the catheterization interface with catheterization hole intercommunication and the utricule interface with cavity utricule intercommunication, insert the end of catheterization body into patient's bladder through the urethra earlier during the use, use utricule interface to the internal normal saline or the gas that lets in of cavity utricule, make the utricule inflation after fix the position of injecing the catheterization body in the bladder, guarantee that the catheterization body can be long-term stable insert locate patient internal, discharge patient's urine through the urination mouth with the urination mouth intercommunication afterwards.

However, in practical life, the indwelling catheter has certain defects that the urothelium of a patient who is indwelling the catheter is tightly contacted with the outer wall of the catheter body, so that urethral secretion and transurethral reconstruction postoperative exudate are difficult to flow out, the urethral secretion and the transurethral reconstruction postoperative exudate are deposited in the urethra of the patient for a long time, the urethral reconstruction is not favorable for healing and shaping of the urethra, the urethral infection of the patient is easy to cause, and the urethral reconstruction catheter has more obvious influence particularly on the patient needing to indwelling the catheter for a long time. In order to prevent or reduce the urinary tract infection rate of patients who need to keep the catheter in place for a long time, the urinary tract of the patients is cleaned by adopting physiological saline and antibiotic diluent clinically, but the urinary tract of the patients is not convenient to be effectively flushed or drained clinically by the existing indwelling catheter.

In order to overcome the defects, people carry out a lot of research and improvement on indwelling catheters, for example, the invention patent with the application publication number of CN105854151A discloses an anti-infection clover-shaped porous catheter which comprises a catheter body with a clover-shaped structure and a cross section formed by three blades, wherein a drainage cavity channel is arranged at the center of the catheter body, and a first through hole for communicating the drainage cavity channel with the outer wall of the catheter body is arranged at a corner formed between two adjacent blades; the flushing cavity is arranged at the center of the blade of the catheter body, when the catheter body is inserted into the urethra, a groove is formed between the outer wall of the catheter body and the urethra, and a second through hole communicated with the flushing cavity is formed between the flushing cavity and the groove. Although the urethral catheter provided by the invention can clean the urethra, the urethral catheter has irregular outer walls which are inserted into the urethra and are easy to make patients feel uncomfortable, the cleaning cavity and the drainage cavity can be indirectly connected through the first channel and the second channel, and urine can easily enter the cleaning channel to be polluted when being discharged, so that the subsequent cleaning operation of the cleaning channel is influenced.

Therefore, there is a need for an indwelling urinary catheter device that can effectively clean the urethra of a patient and give the patient a comfortable experience.

Disclosure of Invention

The invention aims to provide an indwelling catheter which can effectively clean the urethra of a patient under the condition of avoiding infection, has high use comfort for the patient and is simple and convenient to use.

Another object of the present invention is to provide a catheter assembly which can facilitate a patient to fixedly insert an indwelling catheter into the body and facilitate the patient's movement.

The embodiment of the invention is realized by the following steps:

the utility model provides an keep somewhere catheter, it includes the catheter body, but the end of catheter body is equipped with catheterization hole and the utricule of keeping somewhere that can expand and contract, keeps somewhere to be equipped with first cavity in the utricule, and the front end of catheter body is equipped with the catheterization interface that communicates with catheterization hole and the utricule interface that communicates with first cavity, and the outer wall of catheter body is equipped with the recess, is equipped with the washing passageway with the recess intercommunication in the catheter body, and the front end of catheter body is equipped with the washing mouth with washing passageway intercommunication.

In a preferred embodiment of the present invention, the indwelling balloon is disposed between the recess and the urethral catheterization hole.

In a preferred embodiment of the present invention, the groove is a C-shaped groove or an annular groove extending along the circumference of the catheter body.

In a preferred embodiment of the present invention, the outer wall of the catheter body is further provided with at least one flushing groove extending along the axial direction thereof, and one end of the flushing groove near the tail end is communicated with the groove.

In a preferred embodiment of the invention, the length of the projection of the flushing groove on the axis of the catheter body is 4-6cm or 15-22 cm.

In a preferred embodiment of the present invention, the front end of the catheter body is provided with a flushing hole, and the catheter body is further provided with a drainage channel inside, wherein the drainage channel is communicated with the flushing hole and each flushing groove.

In a preferred embodiment of the present invention, the flushing groove is a spiral groove.

In a preferred embodiment of the present invention, an inflatable sealing bag is disposed in the urethral catheterization hole, a second cavity is disposed in the sealing bag, and an inflation tube communicated with the second cavity is disposed in the urethral catheterization passage.

The invention also discloses a urethral catheterization assembly which comprises the indwelling catheter and a fixing assembly for fixing the indwelling catheter, wherein the fixing assembly comprises a sleeve and a fixing device connected with the sleeve, and the sleeve is sleeved at the front end of the urethral catheterization body and can move along the axial direction of the urethral catheterization body.

In a preferred embodiment of the present invention, the fixing device is one of a fixing band, a fixing clip or a magic tape.

The embodiment of the invention has the beneficial effects that: according to the indwelling catheter provided by the invention, the groove is formed in the outer wall of the catheter body, the cleaning channel communicated with the groove is formed in the catheter body, the cleaning opening communicated with the cleaning channel is formed in one end, away from the catheter hole, of the catheter body, and a patient can introduce cleaning liquid into the groove through the cleaning opening and flow down along the outer wall of the catheter body, so that the urethra of the patient can be effectively cleaned under the condition of avoiding infection, the use comfort of the patient is high, and the indwelling catheter is simple and convenient to use. The invention also provides a catheter assembly, which can be convenient for a patient to fix an indwelling catheter inserted into the body and prevent the front end of the catheter body from swinging along with the movement of the patient to damage the urethra.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an indwelling urinary catheter provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at G;

fig. 3 is a longitudinal sectional view of an indwelling urinary catheter according to example 1 of the present invention;

FIG. 4 is a perspective view of an indwelling urinary catheter according to embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 7 is a schematic structural view of a urinary catheterization assembly provided in embodiment 2 of the present invention;

FIG. 8 is a schematic view of the structure at C-C in FIG. 7;

fig. 9 is a schematic structural view of an indwelling urinary catheter according to embodiment 3 of the present invention;

fig. 10 is a perspective view of an indwelling urinary catheter according to embodiment 3 of the present invention.

In the figure: 001-indwelling urinary catheter; 002-indwelling catheter; 003-the catheterization assembly; 004-indwelling urinary catheters; 100-catheter body; 101-terminal end; 102-a front end; 110-a urethral catheterization hole; 111-sealing the capsule; 112-a second cavity; 113-a gas-filled tube; 114-bladder irrigation hole; 115-bladder irrigation interface; 120-an indwelling balloon; 121-a first cavity; 130-a catheterization channel; 140-a balloon channel; 150-a groove; 160-a purge channel; 170-a washing tank; 180-flushing the hole; 190-a drainage channel; 200-a catheterization interface; 210-a capsule interface; 220-a cleaning port; 300-a stationary component; 310-a sleeve; 320-a fixation device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "front", "rear", and the like refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is usually placed in when used, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, 2, 3, 4, 5 and 6, the present embodiment provides an indwelling catheter 001, which includes a catheter body 100, a distal end 101 of the catheter body 100 is provided with a catheter hole 110 and an indwelling balloon 120 capable of expanding and contracting, the indwelling balloon 120 is provided with a first cavity 121, the catheter body 100 is provided with a catheter channel 130 communicated with the catheter hole 110 and a balloon channel 140 communicated with the first cavity 121, a front end 102 of the catheter body 100 is provided with a catheter interface 200 communicated with the catheter channel 130 and a balloon interface 210 communicated with the balloon channel 140, the outer wall of the catheter body 100 is provided with a groove 150, the catheter body 100 is provided with a cleaning channel 160 communicated with the groove 150, the front end 102 of the catheter body 100 is provided with a cleaning port 220 communicated with the cleaning channel 160, and the indwelling balloon 120 is arranged between the groove 150 and the catheter hole 110.

When the indwelling catheter 001 of the present embodiment is used, the distal end 101 of the catheter body 100 is first inserted into the urinary bladder through the urethra of the patient, and then gas or saline is introduced into the first cavity 121 through the balloon channel 140 via the balloon interface 210, so that the indwelling balloon 120 is inflated to fix the position of the catheter body 100, and at this time, the patient can use the urinary catheter to communicate with the catheter interface 200, when urination is required, the patient places the opening of the urinary catheter placed at a high position to a height lower than the urinary bladder, and urine accumulated in the urinary bladder can be discharged through the urinary catheter hole 110, the urinary catheter channel 130, the urinary catheter interface 200 and the urinary catheter. When it is required to wash the urethra of the patient, the saline or the sterilizing detergent flows out of the groove 150 through the washing port 220 via the washing passage 160 and flows out of the space between the catheter body 100 and the urethra, thereby sterilizing and washing the urethra.

As shown in fig. 2, 3 and 4, the groove 150 is a C-shaped groove or an annular groove extending in the circumferential direction of the catheter body 100. Specifically, the groove 150 in this embodiment is a C-shaped groove. When the groove 150 is a C-shaped groove or an annular groove extending along the circumferential direction of the catheter body 100, it is possible to allow the physiological saline or the sterilizing detergent flowing out through the cleaning passage 160 to enter the space between the catheter body 100 and the urethra more extensively and to clean and sterilize the urethra.

As shown in fig. 3, 4, 5 and 6, the outer wall of the catheter body 100 is further provided with at least one flushing groove 170 extending axially along the outer wall, and an end of the flushing groove 170 adjacent to the tip 101 communicates with the groove 150. Specifically, the catheter body 100 of the present embodiment has 4 washing grooves 170 on the outer wall thereof, and the washing grooves 170 are uniformly arranged along the circumference of the catheter body 100. The outer wall of the catheter body 100 is provided with the washing grooves 170 extending along the axial direction thereof, and one end of the washing groove 170 adjacent to the tail end 101 is communicated with the groove 150, so that after the physiological saline or the disinfecting and cleaning liquid enters the groove 150, the physiological saline or the disinfecting and cleaning liquid can flow along each washing groove 170 and clean the urethra flowing through, and the cleaning efficiency of the urethra is improved.

Example 2

As shown in FIGS. 7 and 8, the present embodiment provides a urinary catheter assembly 003 comprising an indwelling catheter 002 and a fixing member 300 for fixing the indwelling catheter, wherein the fixing member 300 comprises a sleeve 310 and a fixing means 320 connected to the sleeve 310, and the sleeve 310 is fitted over the front end 102 of the catheter body 100 and is movable in the axial direction of the catheter body 100. This fixing device 320 can be the fixed band, also can be fixation clamp, magic subsides or other arbitrary devices that are used for with sleeve 310 rigidity, and is specific, and fixing device 320 in this embodiment is magic subsides.

The indwelling catheter 002 comprises a catheter body 100, the end 101 of the catheter body 100 is provided with a catheter hole 110 and an indwelling balloon 120 capable of expanding and contracting, a first cavity 121 is arranged in the indwelling balloon 120, a catheter channel 130 communicated with the catheter hole 110 and a balloon channel 140 communicated with the first cavity 121 are arranged in the catheter body 100, a catheter interface 200 communicated with the catheter channel 130 and a balloon interface 210 communicated with the balloon channel 140 are arranged at the front end 102 of the catheter body 100, a groove 150 is arranged on the outer wall of the catheter body 100, a cleaning channel 160 communicated with the groove 150 is arranged in the catheter body 100, a cleaning opening 220 communicated with the cleaning channel 160 is arranged at one end of the catheter body 100 far away from the catheter hole 110, and the indwelling balloon 120 is arranged between the groove 150 and the catheter hole 110.

As shown in fig. 7 and 8, in the present embodiment, an inflatable sealing balloon 111 is disposed in the urethral catheterization hole 110, a second cavity 112 is disposed in the sealing balloon 111, and an inflation tube 113 communicated with the sealing balloon 111 is disposed in the urethral catheterization channel 130. The inflatable and contractible sealed capsule body 111 is arranged in the urethral catheterization hole 110, the inflatable tube 113 communicated with the sealed capsule body 111 can control the sealed capsule body 111 to expand and contract, so that the urethral catheterization hole 110 is controlled to be opened and closed, a patient can expand the sealed capsule body 111 and close the urethral catheterization hole 110 to stop urine discharge only by introducing gas into the inflatable tube 113, the gas is discharged from the sealed capsule body 111 through the inflatable tube 113 when the patient needs to urinate, the sealed capsule body 111 is contracted to form the urethral catheterization hole 110 to open the urine to be normally discharged, and the patient can conveniently control the discharge of urine in the bladder.

As shown in FIG. 7, the outer wall of the catheter body 100 is further provided with a washing groove 170 extending along the axial direction thereof, one end of the washing groove 170 is communicated with the groove 150, and the washing groove 170 is a spiral groove. The spiral groove 170 can improve the washing range and washing efficiency of the urethra to the maximum extent when it is a spiral groove, and the spiral groove extending in the axial direction of the catheter body 100 can sufficiently and effectively wash the urethra. The outer wall of the catheter body 100 can be provided with 2-4 spiral grooves communicated with the grooves 150, the spiral flushing grooves 170 are uniformly arranged along the circumferential direction of the catheter body 100, and the spiral flushing grooves 170 can be matched with each other to flush the urethra, so that the flushing efficiency and the flushing effect are effectively improved.

The front end 102 of the catheter body 100 is provided with a flushing hole 180, the catheter body 100 is further provided with a drainage channel 190 inside, and the drainage channel 190 is communicated with the flushing hole 180 and each flushing groove 170. The front end 102 of the catheter body 100 is provided with the flushing holes 180 communicated with the flushing grooves 170, so that residual liquid can be led out by using the flushing holes 180 after the flushing grooves 170 flush the urethra, and the residual liquid is prevented from being left to splash along the outer wall of the catheter body 100.

The length of the projection of the flushing channel 170 on the axis of the catheter body 100 is 4-6cm or 15-22 cm. Specifically, the length of the projection of the washing groove 170 on the axis of the catheter body 100 in this embodiment is 17.5 cm. When the length of the washing groove 170 along the axial direction of the catheter body 100 is 4-6cm or 15-22cm, the length is slightly shorter than the length of the urethra of a female or male, so that the urethra of a patient can be fully cleaned, meanwhile, the cleaning liquid is prevented from splashing around, and the washing liquid flowing down along the washing groove 170 flows out through the drainage channel 190 and is collected through the washing hole 180.

The catheterization subassembly 003 that this embodiment provided is including lieing in catheter 002, and is used for the fixed subassembly 300 of lieing in catheter 002, will lieing in catheter 002 and insert the patient through the urethra internal and when keeping for a long time, the patient can use fixed subassembly to fix and keep in catheter 002 to it threw, rocks or collides and causes the damage to its urethra to leave catheter 002 when avoiding the patient to remove, makes things convenient for the patient to remove. Specifically, the patient can fix the front end 102 of the indwelling catheter 002 on the leg by the sleeve 310 sleeved on the front end 102 of the catheter body 100 and the hook and loop fastener connected with the sleeve 310, thereby preventing the front end 102 of the catheter body 100 falling outside from swinging when the patient walks.

Example 3

As shown in fig. 9 and 10, the present embodiment provides an indwelling catheter 004, which is substantially the same as the indwelling catheter 001 in embodiment 1 except that: in the indwelling catheter 004 according to the present embodiment, the distal end 101 of the catheter body 100 is further provided with a bladder irrigation hole 114, and the distal end 102 of the catheter body 100 is provided with a bladder irrigation port 115 communicating with the bladder irrigation hole 114. The user may flush the patient by passing saline or irrigation fluid through the bladder irrigation port 115 into the bladder through the bladder irrigation hole 114.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An indwelling catheter is characterized by comprising a catheter body, wherein the tail end of the catheter body is provided with a catheter hole and an indwelling bag body capable of expanding and contracting, a first cavity is arranged in the indwelling bag body, the front end of the catheter body is provided with a catheter interface communicated with the catheter hole and a bag body interface communicated with the first cavity, the outer wall of the catheter body is provided with a groove, a cleaning channel communicated with the groove is arranged in the catheter body, and the front end of the catheter body is provided with a cleaning port communicated with the cleaning channel; the groove is a C-shaped groove or an annular groove which extends along the circumferential direction of the catheter body; an inflatable and contractible sealed bag body is arranged in the urethral catheterization hole, a second cavity is arranged in the sealed bag body, and an inflation tube communicated with the second cavity is arranged in the urethral catheterization channel; the inflation tube communicated with the sealing bag body can control the sealing bag body to expand and contract, so that the opening and the closing of the urethral orifice are controlled.

2. The indwelling urinary catheter according to claim 1, wherein the indwelling balloon is disposed between the groove and the urethral catheterization hole.

3. An indwelling urinary catheter according to claim 1, wherein the outer wall of the catheter body is further provided with at least one flushing channel extending axially along the catheter body, the end of the flushing channel adjacent the tip communicating with the recess.

4. An indwelling urinary catheter according to claim 3, wherein the length of the projection of the irrigation channel on the axis of the catheter body is 4-6cm or 15-22 cm.

5. The indwelling catheter according to claim 3, wherein the catheter body is provided at its front end with a flushing hole, and a drainage channel is further provided inside the catheter body, the drainage channel communicating the flushing hole with each of the flushing grooves.

6. An indwelling urinary catheter according to claim 3, wherein the irrigation channel is a spiral channel.

7. A urinary catheter assembly comprising an indwelling catheter according to any one of claims 1 to 6 and a fixing assembly for fixing the indwelling catheter, said fixing assembly comprising a sleeve and fixing means connected to said sleeve, said sleeve being fitted over the front end of said catheter body and being movable in the axial direction of said catheter body.

8. The urinary catheterization assembly of claim 7, wherein the securing device is one of a securing strap, a securing clip, or a hook and loop fastener.