CN220344927U

CN220344927U - Catheter for dilating narrow urethra

Info

Publication number: CN220344927U
Application number: CN202321873348.2U
Authority: CN
Inventors: 段娟; 王跃力; 杨盛宇; 叶涛; 杨月月
Original assignee: 920th Hospital of the Joint Logistics Support Force of PLA
Current assignee: 920th Hospital of the Joint Logistics Support Force of PLA
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-01-16
Anticipated expiration: 2033-07-17

Abstract

The utility model discloses a catheter for dilating a narrow urethra, which comprises a catheterization main pipe, a dilating module, a power module and a control module, and is characterized in that: the urethral catheterization is responsible for and is provided with urethral catheterization passageway and outflow passageway, expand prop the module and be provided with fixed mounting on the urethral catheterization is responsible for and with the continuous expansion bag of outflow passageway, power module is provided with and is located the inside motor of control module, links to each other the piston with the motor output, with piston sliding connection's piston chamber, link to each other with outside drainage hole that links to each other with the piston chamber, the tributary passageway that links to each other with the outflow passageway and the egress opening that links to each other with the tributary passageway, control module is located the piston top. The utility model can automatically and gradually pressurize in the urethra dilatation process by mutually matching the modules, gradually dilate the narrow urethra, has simple and convenient process operation, can be connected with a urine bag through the connecting port at the tail part of the catheter, collects urine and prevents environmental pollution.

Description

Catheter for dilating narrow urethra

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a catheter for dilating a narrow urethra.

Background

Urethral stricture is a common disease in the urinary system, and a number of diseases occur in men. With urethral stricture, urination difficulty and frequent urination, urgent urination, incomplete urination, and gradually residual urine, and finally urinary retention or filling urinary incontinence. Urethral stricture can be a great hazard to the human body: can affect genital function, cause chronic renal failure, cause urethral stricture, difficult urination, cause cystitis and prostatitis, etc. The number of cases of urethral dilation for treating urethral stricture diseases in China rises year by year, and iatrogenic urethral stricture caused by urethral dilation is also increasing year by year. Urethral dilatation is the oldest and simplest treatment of urethral stricture. The method is usually carried out in an operating room or during treatment under local anesthesia, local injection of local anesthetics such as lidocaine, dyclonine and the like on the urethra of a patient causes the patient to finish surface anesthesia, urethral bougie urine expanding bags are opened after anesthesia, urethral bougies are arranged from small to large, bougies are selected to be sequentially inserted into the urethra of the patient from small to large according to the condition of the patient, and each bougie is stopped for 1 to 2 minutes after being inserted into the urethra, so that the patient adapts to the expanded urethra. After one to two minutes, the patient's urethral bougie is pulled out and a thicker model urethral bougie is replaced until no urinary expansion can be performed. The last urinary tract is expanded, and the patient is subjected to urethral adaptation for 3 to 5 minutes, so that the last urethral bougie of the patient stays in the urethra for 3 to 5 minutes, and the patient is helped to fully expand the urethra. Generally, the patient will be urinated once a week, and after 4 to 6 subsequent urinations, the patient will be urinated once a month until the patient is cured.

According to the patent number: CN217067379U is provided with a catheter body, a spacing saccule and a supporting saccule, and through drainage holes and drainage channels on the catheter body, the urine in the bladder of the patient is discharged outside the patient, the catheter body is fixed through the expansion of the spacing saccule, the catheter is prevented from sliding off, after the catheter body is placed in, the supporting saccule is inflated or injected with water through a supporting joint, so that the supporting saccule is expanded, the effect of expanding and narrowing the urethra can be achieved, and the diameter of the supporting saccule at the exposed part is measured, so that the expansion degree of the urethra is accurately known, and the effect of expanding the urethra is improved. However, the existing device has the following problems that the urethra expanding process needs to be pressurized for multiple times, the urethra is expanded step by step, the urinary catheter needs to be manually operated each time, the expanded balloon needs to be measured, a great amount of time is definitely consumed, the balloon is excessively expanded due to improper operation, the artificial damage is caused, and in addition, the problem that the expansion conditions of the middle and the two sides of the integral balloon are inconsistent occurs.

Therefore, in order to solve the above technical problems, the present utility model provides a urinary catheter for dilating a stenosed urethra.

Disclosure of Invention

The utility model aims to provide the catheter for dilating the stenosed urethra, which can be used for dilating the stenosed urethra step by step, is automatically controlled in the process, collects the outflow liquid and is simple in operation.

In order to achieve the technical effects, the utility model is realized by the following technical scheme: the utility model provides a catheter of stenosed urethra, includes the catheterization person in charge, expands and prop the module, power module and control module, its characterized in that: the urethral catheterization is responsible for and is provided with urethral catheterization passageway and outflow passageway, expand prop the module and be provided with fixed mounting on the urethral catheterization is responsible for and with the continuous expansion bag of outflow passageway, power module is provided with and is located the inside motor of control module, links to each other the piston with the motor output, with piston sliding connection's piston chamber, link to each other with outside drainage hole that links to each other with the piston chamber, the tributary passageway that links to each other with the outflow passageway and the egress opening that links to each other with the tributary passageway, control module is located the piston top.

Further, the urethral catheterization main tube is characterized in that the head part of the urethral catheterization main tube is provided with a bending structure which is led in a taper way and is similar to the physiological structure of the human urethra, and the tail part of the urethral catheterization main tube is provided with a connecting port.

Further, the expansion bag is characterized in that the expansion bag is provided with a first expansion bag, a second expansion bag and a third expansion bag, and the first expansion bag and the third expansion bag are respectively provided with taper guiding structures positioned at two ends of the expansion module.

Further, the drainage hole is characterized in that a one-way valve is arranged.

Further, the outflow port is provided with a rotary switch.

Further, the power module is characterized in that the power module is provided with a rotating ring which is rotationally connected with the catheterization main pipe, the rotating ring is provided with an annular groove, a sealing structure is arranged outside the annular groove, and the rotating ring is provided with a rotary fixed switch.

Further, characterized in that, the control module is provided with a control box located above the piston, a battery control unit located inside the control box, a timer, a display screen located outside the control box and a control button, the control box is provided with a charging interface, and the charging interface, the motor, the battery, the display screen and the control button are all electrically connected with the control unit.

The utility model has the beneficial effects that:

1) The urethral catheterization device has the advantages that the urethral catheterization main pipe, the expansion module, the power module and the control module are matched with each other, so that the urethral stenting device can automatically and gradually pressurize and expand the narrow urethra step by step in the urethral dilation process, the operation is simple and convenient, and the urethral catheterization device can be connected with a urine bag through the connection port at the tail part of the urethral catheter to collect urine and prevent the environment from being polluted;

2) The display screen and the control button are arranged on the control module, the display screen is convenient for visually knowing the electric quantity of the equipment and other information when in operation, the control button provides a direct interaction mode for operators, and is used for inquiring the residual electric quantity of the battery and setting the frequency and the working time of the motor so as to adapt to different operation conditions and improve the practicability of the device;

3) The external power supply is charged by the battery through the matching of the charging interface and the wire plug, when an operation is needed, the internal battery is used for supplying power, the external power supply is applicable to different scenes, and the external power supply opening device can be connected after the external power supply opening device is placed in a patient under special conditions.

4) The control module and the power module can rotate around the main catheter, and the adjusted position can be fixed by the rotary fixing switch, so that the operation of medical staff is convenient according to actual conditions, and the practicability of the device is greatly enhanced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a left side view of the present utility model;

FIG. 4 is a top view of the present utility model;

FIG. 5 is a cross-sectional view A-A of the catheter main tube of FIG. 4 according to the utility model;

FIG. 6 is a cross-sectional view A-A of the control module of FIG. 4 in accordance with the present utility model;

FIG. 7 is an enlarged view of the swivel of FIG. 5 in accordance with the utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. a catheterization main pipe; 2. a spread module; 3. a power module; 4. a control module; 11. a urinary catheter; 12. an outflow channel; 21. a first stent balloon; 22. a second stent balloon; 23. a third expanding bag; 31. a motor; 32. a piston; 33. a piston chamber; 34. drainage holes; 35. a tributary passage; 36. an outflow port; 37. a one-way valve; 38. a rotary switch; 39. a rotating ring; 391. a rotary fixed switch; 41. a control box; 42. a battery; 43. a display screen; 44. control buttons.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

the utility model provides a catheter of stenosed urethra, includes catheterization person in charge 1, expands and prop module 2, power module 3 and control module 4, its characterized in that: the urethral catheterization is responsible for 1 and is provided with catheterization passageway 11 and outflow passageway 12, expand and prop the module 2 and be provided with the fixed mounting and be provided with the expansion bag that links to each other with outflow passageway 12 on catheterization is responsible for 1, power module 3 is provided with and is located the inside motor 31 of control module, link to each other piston 32 with the output of motor 31, with piston sliding connection's piston chamber 33, with outside link to each other with the drainage hole 34 that piston chamber 33 links to each other, with outflow passageway 35 that outflow passageway 12 links to each other and with the outflow 36 that tributary passageway 35 links to each other, control module 4 is located piston 32 top. The piston cavity 33 has a certain sectional area, and the stroke and the movement frequency of the piston 32 can be controlled by adjusting the motor 31 and the control unit, so that the piston cavity can be regularly and quantitatively fed with the expanding bag filler, and the filler can be water or air.

The head of the urethral catheterization main pipe 1 is provided with a bending structure which is guided in a taper way and is similar to the physiological structure of the human urethra, and the tail of the urethral catheterization main pipe is provided with a connecting port 13. The taper guiding and similar bending structure to the physiological structure of human urethra is used to help the medical staff insert the catheter into the patient's urinary canal during operation and to reduce the pain of the patient during operation. The connecting port 13 can be connected with a urine bag to collect urine, so as to prevent environmental pollution.

The expanding bag is provided with a first expanding bag 21, a second expanding bag 22 and a third expanding bag 23, and the first expanding bag 21 and the third expanding bag 23 are respectively provided with taper guiding structures positioned at two ends of the expanding module 2. The three expanding bags are arranged, so that the problem that the expansion conditions of the middle and two sides of the single expanding bag are inconsistent is solved, the first expanding bag 21 and the third expanding bag 23 at the two ends are provided with taper guidance, and the expanding bags are not obstructed in the process of inserting the catheter into the catheter of the patient.

The drain hole 34 is provided with a one-way valve 37. The catheter can be externally introduced with a filling material, such as air or water, etc., through the drainage hole 34, whereby the use is enhanced and the one-way valve 37 is provided to ensure that the filling material does not flow back out of the piston chamber 33.

The outflow opening 36 is provided with a rotary switch 38. During the expansion, the rotary switch 38 of the outflow port 36 is closed, and after the expansion is completed, the filler can be discharged by opening the rotary switch 38.

The power module 3 is provided with a rotating ring 39 which is rotatably connected with the catheterization main pipe 1, the rotating ring 39 is provided with an annular groove, a sealing structure is arranged outside the annular groove, and the rotating ring 39 is provided with a rotary fixed switch 391. The annular groove serves to connect the outflow channel 12 and the branch channel 35. The control module and the power module can rotate around the catheterization main pipe through the rotating ring 39, so that the device can be conveniently adjusted according to actual conditions when medical staff operate, and the adjusted device can be fixed by the rotating fixed switch 391, so that the practicability of the device is greatly enhanced.

The control module 4 is provided with a control box 41 positioned above the piston 32, a battery 42 positioned inside the control box 41, a control unit, a timer, a display screen 43 positioned outside the control box 41 and a control button 44, wherein the control box 41 is provided with a charging interface, and the charging interface, the motor 31, the battery 42, the display screen 43 and the control button 44 are electrically connected with the control unit. The external power supply is charged to the battery through the cooperation of the charging interface and the wire plug, when the operation is needed, the internal battery 42 is used for supplying power, and the external power supply starting device is applicable to different scenes, and can be connected after being placed into a patient under special conditions. The control button 42 can adjust the motor operation time, how long to operate again at intervals, and the motor operation frequency, and can realize automatic control to expand the narrow urethra step by step.

Example 2:

when the catheterization device is used, the electric quantity of the lower device is observed firstly, if the electric quantity is insufficient, if the time is abundant, the electric quantity is charged firstly, and if the situation is urgent, the external power supply opening device can be connected after the catheterization main pipe 1 is placed in a patient. Then the urethral catheterization main pipe 1 is smeared with sterile lubricant, a patient lies on a sickbed in a proper position, and medical staff stretches the urethral catheterization main pipe 1 into the urethra of the patient in a proper mode and then slowly pushes the urethral catheterization main pipe into the urethra until reaching the bladder. If the situation of the urethral stricture is met in the process, the power supply is turned on through the control button 44, water or air is conveyed to the expansion bladder through the drainage hole 34, the power is the motor 31, whether the filling is completed or not is judged at the moment, the urethral catheterization main tube 1 can be pulled lightly by hand, the expansion bladder is prevented from being separated, the expansion bladder is attached to the inner wall of the urethral canal, the motor operation time can be adjusted, how long the interval is operated again and the motor operation frequency can be adjusted through the display screen 43 and the control button 44, and automatic control can be realized, so that the urethral stricture is expanded step by step.

Claims

1. The utility model provides a catheter of stenosed urethra, includes catheterization person in charge (1), expands and prop module (2), power module (3) and control module (4), its characterized in that: the urethral catheterization is responsible for (1) and is provided with urethral canal (11) and outflow passageway (12), expand prop module (2) be provided with fixed mounting on urethral catheterization is responsible for (1) and with the continuous expansion of outflow passageway (12) prop the bag, power module (3) are provided with be located inside motor (31) of control module, link to each other piston (32) with motor (31) output, with piston sliding connection's piston chamber (33), link to each other with outside drainage hole (34) that link to each other with piston chamber (33), branch flow passageway (35) that link to each other with outflow passageway (12) and the egress opening (36) that link to each other with branch flow passageway (35), control module (4) are located piston (32) top.

2. A catheter for dilating a stenosed urethra as claimed in claim 1, characterized in that the head of the main catheter (1) is provided with a curved structure which is led in a taper manner and is adapted to the physiological structure of the human urethra, and the tail is provided with a connecting port (13).

3. A catheter for dilating a stenosed urethra as claimed in claim 1, characterized in that the balloon is provided with a first balloon (21), a second balloon (22) and a third balloon (23), the first balloon (21) and the third balloon (23) being provided with respective tapering guiding structures at both ends of the stent module (2).

4. A catheter for dilating a stenotic urethra according to claim 1, wherein the drainage hole (34) is provided with a one-way valve (37).

5. A catheter for dilating a stenotic urethra according to claim 1, wherein the outflow opening (36) is provided with a rotary switch (38).

6. A catheter for dilating a stenosed urethra as claimed in claim 1, characterized in that the power module (3) is provided with a rotating ring (39) which is rotatably connected to the main catheter tube (1), the rotating ring (39) is provided with an annular groove, the outside of the annular groove is provided with a sealing structure, and the rotating ring (39) is provided with a rotary fixing switch (391).

7. A catheter for dilating a stenotic urethra according to claim 1 wherein the control module (4) is provided with a control box (41) located above the plunger (32), a battery (42) located inside the control box (41), a control unit and timer, a display screen (43) and a control button (44) located outside the control box (41), and a charging interface is provided on the control box (41), wherein the charging interface, the motor (31), the battery (42), the display screen (43) and the control button (44) are electrically connected to the control unit.