CN210992518U

CN210992518U - Indwelling catheter capable of automatically flushing urethra

Info

Publication number: CN210992518U
Application number: CN201921569691.1U
Authority: CN
Inventors: 李兵; 刘利龙; 梁超启
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-14
Anticipated expiration: 2029-09-20

Abstract

The utility model is suitable for a medical instrument field provides an automatic wash keep somewhere catheter of urethra, it is close to and is located one section recess district of cavity utricule rear side position formation to keep somewhere the catheter, the recess district includes the recess that a plurality of edge length direction were seted up, and every recess bottom spaced apart has a plurality of apertures. During indwelling the catheter, the secretion in the patient urethra gets into the recess, and gets into to the inside drainage channel of catheter and discharge smoothly through the aperture, and the urine also can get into the recess through the aperture simultaneously, forms the scouring action to the urethra, can discharge local secretion and the epithelial cell who drops, further effectively avoids urinary tract infection's emergence.

Description

Indwelling catheter capable of automatically flushing urethra

Technical Field

The utility model belongs to the field of medical equipment, especially, relate to an automatic wash catheter of keeping somewhere of urethra.

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, its head end is equipped with urethral catheterization hole and collapsible cavity utricule, the end of catheter is equipped with the catheterization interface that communicates with the urethral catheterization hole and the utricule interface that communicates with the cavity utricule, insert the patient's bladder through the urethra with the head end of catheter earlier during the use, use utricule interface to the internal normal saline or the gas that lets in of cavity utricule, make the position of prescribing a limit to the catheter after the utricule inflation in the bladder, guarantee that can be long-term stable insert locate the patient internal, discharge patient's urine through the urination mouth with the urination mouth intercommunication afterwards.

The secretion of urethra is abundant in adults, especially men, and when the catheter is not indwelling, the secretion in urethra of patient can be discharged through urethra by itself or discharged with urine during urination. During the catheter indwelling period, the urothelium of the patient is tightly attached to the outer surface of the catheter, secretion in the urethra of the patient cannot be smoothly discharged and is gathered between the outer surface of the catheter and the urothelium, local infection is easily caused, particularly for the patient needing to place the catheter for a long time, infection is more easily caused, such as the patient needing to lie in bed for a long time due to fracture of parts such as the spine, pelvis, lower limbs and the like, and the patient needing to place the catheter for a long time due to urethral operation or autonomous urination dysfunction. Clinical researches also find that the situation of urethritis secondary to bacterial reproduction of urethra after more than 24 hours of retention of a large number of patients after operation or needing to retain the ureter inevitably occurs, and severe patients can cause urethral stricture, dysuria and hydronephrosis in the later period and finally affect the kidney function. In addition, for the patients after the operation of the urethra, the local infection of the urethra can seriously affect the good healing of the operation part, and the incidence rate of complications such as urethral stricture, urine leakage, urethral diverticulum and the like after the operation is increased, thereby reducing the success rate of the operation.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide an indwelling catheter for automatically flushing the urethra, which aims to solve the technical problem that the existing indwelling catheter is easy to cause urethral infection after being left for a long time.

The utility model adopts the following technical scheme:

the indwelling catheter capable of automatically flushing the urethra is characterized in that the head end of the indwelling catheter is provided with a urethral catheterization hole and a hollow bag body capable of expanding and contracting, the urethral catheterization hole is located on the front side of the hollow bag body, the outer wall of the indwelling catheter is close to the tail end position and is further provided with a bag body interface, an air bag channel is arranged in the indwelling catheter, the bag body interface passes through the air bag channel and the hollow bag body, the indwelling catheter is close to and located one section of groove area formed on the rear side of the hollow bag body, the groove area comprises a plurality of grooves formed in the surface of the catheter body along the length direction, and a plurality of small holes are formed in the bottom.

Furthermore, the cross section of the groove is of a C-shaped structure with an outward opening.

Further, the small holes are in the types of outer inclined holes, inner inclined holes and vertical holes.

Furthermore, the outer inclined holes, the vertical holes and the inner inclined holes of the small holes are regularly arranged in sequence.

Furthermore, the total length of the indwelling catheter is 35cm or 45cm, the length of the groove area is 6-16 cm, 2-10 grooves are formed, and the shortest distance between each groove and the hollow capsule body is 1-2 cm.

The utility model has the advantages that: the utility model discloses being close to cavity capsule position and setting up one section recess district keeping somewhere the catheter, there is the aperture in every recess, keep somewhere during the catheter, the secretion in the patient urethra gets into the recess, and enters into to the inside drainage channel of catheter and discharges smoothly through the aperture, and the urine also can get into the recess through the aperture simultaneously, forms the scouring action to the urethra, can discharge local secretion and the epithelial cell who drops, further effectively avoids the emergence of urinary tract infection.

Drawings

Fig. 1 is a structural view of an indwelling catheter for automatic urethral irrigation according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an indwelling catheter for automatic urethral irrigation as provided in an embodiment of the present invention

FIG. 3 is a view showing the catheter after placement in the urethra;

FIG. 4 is a schematic view of the pore distribution.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Fig. 1 shows the structure of an indwelling catheter for automatically flushing the urethra according to an embodiment of the present invention, and fig. 2 shows the cross-sectional structure of the indwelling catheter, only the parts related to the embodiment of the present invention are shown for convenience of explanation.

As shown in fig. 1 and 2, the indwelling catheter capable of automatically flushing urethra provided by the present embodiment has a urethral orifice 1 at its head end and a hollow utricule 2 capable of expanding and contracting, the urethral orifice 1 is located at the front side of the hollow utricule 2, the outer wall of the indwelling catheter 2 is close to the end position and is further provided with a utricule interface 3, an air bag channel 4 is arranged in the indwelling catheter, the utricule interface 3 passes through the air bag channel 4 and the hollow utricule 2, the indwelling catheter is close to and located at the rear side of the hollow utricule to form a section of groove area, the groove area includes a plurality of grooves 5 arranged along the length direction on the surface of the catheter body, and a plurality of small holes 6 are spaced at the. Preferably, the positions of the small holes in the different grooves are staggered, so that the small holes are formed in different cross sections, and the problem that the toughness of the support tube is too low and the support tube is easy to break due to the fact that the small holes are formed in the same cross section is avoided. In the embodiment, the total length of the indwelling urinary catheter is 35cm or 45cm, the model 6F/8F/10F length is 35cm, the model 12F/14F/16F/18F/20F/22F length is 45cm, the length of the groove region is 6-16 cm, the length of the model 6F/8F/10F groove region is 6cm, the length of the model 12F groove region is 10cm, the length of the model 14F groove region is 14cm, the length of the model 16F/18F/20F/22F groove region is 16cm, 2-10 grooves are arranged, and the shortest distance between each groove and the hollow bag body is 1-2 cm.

The using method of the indwelling catheter comprises the following steps:

the catheter is placed into the bladder of a patient through the urethra, and gas or liquid is injected into the bladder channel to expand the bladder to fix the catheter, so that the catheter is prevented from slipping; the catheter is slightly pulled to enable the air bag to abut against the inner opening of the bladder, the groove and the small hole are completely positioned in the urethra at the moment, urine in the bladder enters the drainage channel (shown as a mark A) in the catheter through the urine guide hole, then the urine flows into the groove through the small hole to wash the secretion of the urethra, and then flows back to the drainage channel in the catheter through the small hole to be drained out of the body. The length of the groove is less than that of the urethra, so that urine is prevented from leaking out of the urethra outer opening to wet patient clothes and bed sheets after entering the groove through the small hole due to the fact that the groove section is exposed out of the urethra outer opening. The length of the urethra of an adult male is 14-20cm, the length of the urethra of a minor male is 6-18cm, wherein patients needing a long-term indwelling catheter are generally older than 3 years, and the length of the urethra ranges from 8 to 18.

As a preferable structure, the cross section of the groove is of a C-shaped structure with an outward opening. Because the opening of the C-shaped structure is smaller, and the catheter is placed in the urethra, as shown in fig. 3, under the action of urothelium (shown as a mark B), the C-shaped structure deforms, the opening is further reduced, the urethral mucosa is prevented from sinking into the groove, the surface of the catheter is kept smooth, and the discomfort of a user is relieved.

In addition, in this embodiment, as shown in fig. 4, the types of the small holes include an outer oblique hole, an inner oblique hole, and a vertical hole, wherein the small holes are regularly arranged in the order of the outer oblique hole, the vertical hole, and the inner oblique hole. The shape of walking of aperture slant inside/outside is favorable to the urine to effectively wash the urethra, and the drainage secretion, and is concrete, and the urine enters into the recess from outer inclined hole, then discharges into the lumen smoothly from interior inclined hole, and vertical hole can two-way inflow or discharge, and then realizes washing the function of urethra.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an automatic wash urethral indwelling catheter, its head end is opened there is the urethral catheterization hole and is provided with the cavity utricule that can expand and contract, the urethral hole is located cavity utricule front side, it is close to the end position and still is provided with the utricule interface to keep somewhere the catheter outer wall, it is provided with the gasbag passageway to keep somewhere in the catheter, the utricule interface passes through the gasbag passageway with cavity utricule intercommunication, a serial communication port, it is close to and is located cavity utricule rear side position and forms one section recess district to keep somewhere the catheter, the recess district includes a plurality of recesses of seting up along length direction in body surface, and every recess bottom interval is opened has a plurality of.

2. An indwelling catheter for automatically irrigating the urethra according to claim 1, wherein said groove has a C-shaped cross section with an outward opening.

3. An indwelling catheter for automatically irrigating the urethra according to claim 2, wherein said holes are of the type including outer angled holes, inner angled holes and vertical holes.

4. An indwelling catheter for automatically irrigating the urethra according to claim 3, wherein the holes are regularly arranged in the order of outer slant holes, vertical holes and inner slant holes.

5. An indwelling catheter for automatically irrigating the urethra according to any one of claims 1 to 4, wherein the indwelling catheter has a total length of 35cm or 45cm, a groove region having a length of 6 to 16cm, 2 to 10 grooves, and a shortest distance between the grooves and the hollow balloon of 1 to 2 cm.