CN104739358A - Ureteroscope urinary bladder pressure reducing device - Google Patents

Abstract

The invention relates to a ureteroscopic bladder decompression device, the decompression device comprises an outer sheath and an inner core; the inner core is placed in the outer sheath; the distal end of the inner core protrudes from the outer sheath; the proximal end of the inner core clamped at the end of the outer sheath; the distal end of the outer sheath is provided with a telescopic device; the proximal end of the outer sheath is provided with a base; the base is provided with a side tube; the side tube is connected with a regulator; The adjuster is provided with a card slot; when the telescopic device is in a contracted state, both ends are drawn toward the middle to form a bulge; the profile surface of the bulge is an arc-shaped surface. Its advantages are as follows: release the liquid in the bladder through the outer sheath, and control the opening and closing of the drain port through the regulator to achieve bladder decompression without repeatedly withdrawing the mirror, avoiding excessive pressure in the bladder caused by the continuous increase of liquid in the bladder or causing bladder damage. Damage; the inner core controls the contraction and recovery of the telescopic device, which is easy to operate and minimally invasive; the outer sheath is pierced with an inner core before and after the operation, which has the function of dredging and guiding, and can prevent the outer sheath from being blocked.

Description

Ureteroscopic bladder decompression device

technical field

The invention relates to the technical field of medical instruments, in particular to a ureteroscope bladder decompression device.

Background technique

Ureteroscopy is an extension of urethroscopy and cystoscopy in the upper urinary tract. Ureteroscopy refers to putting endoscopes through the urethra through the bladder and other natural human passages for biopsy of ureters and kidneys, lithotripsy, electrocautery and ureteroscopy. Various operations such as narrow internal incision make full use of the natural cavity of the human body for some surgical operations, avoiding the need to make a large incision in the abdomen in traditional surgery. It is mainly used to treat stones, polyps or strictures in the middle and lower ureter, and can also be used to diagnose diseases such as renal pelvis and ureteral tumors.

Ureteroscopy has been around for more than half a century. Its advantage is to examine and treat diseases through the natural channel of the human body. It has the advantages of minimally invasive injury, few complications, definite curative effect, and fast postoperative recovery. It is widely used in clinical practice and is One of the important techniques developed in the field of endourology. During ureteroscopic surgery, in order to ensure a clear intraoperative field of view, it is necessary to perfuse normal saline to maintain the surgical field of view. However, with continued perfusion, urine and perfusate continue to accumulate in the bladder. Excessive distension of the bladder will make it difficult to mirror the ureteroscope and affect the operation. At the same time, the continuous increase of fluid in the bladder leads to excessive pressure in the bladder, which can also cause damage to the bladder, and in severe cases, it may even cause the bladder to rupture. Therefore, the surgeon often needs to interrupt the procedure, withdraw the ureteroscope and place a catheter to drain urine to relieve bladder pressure. However, repeated withdrawal of the mirror not only affects the efficiency of the operation, but also increases the risk of injury to the urethra and ureter.

Chinese patent document CN92207065.2, date of application on December 2, 1992, patent name is medical anti-blockage decompression tube, discloses a kind of medical anti-blockage decompression tube, this tube is made of a soft, double hollow catheter The main body is equipped with at least one air bag, a fixed bag, several pulling wires, several elongated side holes, at least one pulling wire fixing ring and a guide steel wire in the head section, and the tube wall (or core) contains an air bag injector. The airway and air injection port are characterized in that: the heads of several pulling wires are fixed at one end of the airbag, pass through the pulling wire fixing hole on the airbag and the pulling wire fixing ring at one end of the airbag, cross the side hole of the catheter, and the tail end of the pulling wire It is fixed on the hole edge of the side hole far from the end of the air bag, the opening of the air bag injection port is located in the air bag, and the guide wire can be inserted into the catheter core. It can effectively prevent food residues, feces, accumulated blood, necrotic tissue, gastrointestinal wall, etc. from clogging the catheter, and can continuously decompress the gastrointestinal tract and bladder. However, there is no report about the bladder decompression device under the ureteroscopic technique.

In summary, there is an urgent need for a ureteroscopic bladder decompression device that releases fluid in the bladder, relieves bladder pressure, and avoids bladder damage or even rupture.

Contents of the invention

The purpose of the present invention is to provide a ureteroscopic bladder decompression device for releasing liquid in the bladder, relieving bladder pressure, and avoiding bladder damage or even rupture.

For realizing above-mentioned object, the technical scheme that the present invention takes is:

A ureteroscopic bladder decompression device, the decompression device includes an outer sheath and an inner core; the inner core is placed in the outer sheath; the distal end of the inner core extends out of the outer sheath; the proximal end of the inner core is clamped on the outer sheath The end of the sheath; the distal end of the outer sheath is provided with a telescopic device; the proximal end of the outer sheath is provided with a base; the base is provided with a side tube; the side tube is connected with a regulator; A card slot is provided; when the telescopic device is in a contracted state, the two ends are drawn toward the middle to form a protrusion; the contour surface of the protrusion is an arc-shaped surface.

The distal end of the inner core is conical, and the end surface is a circular arc transition connection; the proximal end of the inner core is provided with an I-shaped handle.

The work-shaped handle runs through the inner core up and down.

The inner surface of the proximal end of the I-shaped handle is provided with a fitting block axially protruding toward the inner core; the outer surface of the distal end of the I-shaped handle is provided with a striped groove.

The distal end of the outer sheath is a drainage port.

The drainage opening is conical.

The end of the side pipe is a liquid discharge port.

The proximal end of the base is provided with a rubber sealing cap with a cross or a straight opening.

The base is also provided with side wings.

The work-shaped handle fits with the base on the outer sheath through the fitting block.

The present invention has the advantage that:

1. A ureteroscope bladder decompression device of the present invention releases the liquid in the bladder through the outer sheath, and at the same time controls the opening and closing of the drain port through the regulator to achieve bladder decompression without repeatedly withdrawing the mirror to avoid constant fluid in the bladder. Increased pressure in the bladder or damage to the bladder;

2. The protrusion formed by the telescopic device is embedded in the neck of the bladder to prevent the outer sheath from falling off, no need to inject saline, and the surgical field of view is clear and the surgical efficiency is high;

3. Control the contraction and recovery of the telescopic device through the inner core, which is easy to operate and minimally invasive; the outer sheath is pierced with an inner core before and after the operation, which has the function of dredging and guiding, and can prevent the outer sheath from being blocked;

4. The end faces of the inner core and the outer sheath are conical, which can buffer the inner wall of the bladder and prevent the doctor from cutting the inner wall of the bladder due to improper force during operation.

Description of drawings

Accompanying drawing 1 is a structural schematic diagram of a ureteroscope bladder decompression device of the present invention.

Accompanying drawing 2 is inner core front view.

Accompanying drawing 3 is the three-dimensional structure schematic diagram of inner core.

Accompanying drawing 4 is the front view of outer sheath.

Accompanying drawing 5 is a schematic diagram of the three-dimensional structure of the outer sheath.

Detailed ways

The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

The reference signs and components involved in the accompanying drawings are as follows:

1. Outer sheath 11. Drainage port

12. Telescopic device 13. Base

14. Side pipe 15. Regulator

16. Card slot 17. Drain port

18. Raised 19. Flanks

2. Inner core 21. Work-shaped handle

22. Fit block 23. Stripe groove

24. Seal cap

Example 1

For ease of description, the following description uses the terms "distal end" and "proximal end"; the distal end is the end farther away from the doctor's operation; the proximal end is the end closer to the doctor's operation.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a ureteroscopic bladder decompression device of the present invention. A ureteroscopic bladder decompression device, the bladder decompression device comprises an outer sheath 1 and an inner core 2; the inner core 2 is placed in the outer sheath 1; the distal end of the inner core 2 extends out of the outer sheath 1; The proximal end of the inner core 2 is clamped at the end of the outer sheath 1; the distal end of the outer sheath 1 is provided with a telescopic device 12; the proximal end of the outer sheath 1 is provided with a base 13; the base 13 is provided with a side pipe 14; The end of the side pipe 14 is a drain port 17; the side pipe 14 is connected with a regulator 15.

Please refer to Figure 2, Figure 2 is a front view of the inner core. The distal end of the inner core 2 is conical, and the end surface is a circular arc transition connection; the proximal end of the inner core 2 is provided with an I-shaped handle 21 .

Please refer to FIG. 3 , which is a schematic diagram of the three-dimensional structure of the inner core. The I-shaped handle 21 runs through the inner core 2 up and down; the inner surface of the proximal end of the I-shaped handle 21 is provided with a fitting block 22 protruding axially toward the inner core 2; the outer surface of the distal end of the I-shaped handle 21 is provided with Stripe groove 23.

Please refer to FIG. 4 , which is a front view of the outer sheath. The distal end of the outer sheath 1 is a drainage port 11; the drainage port 11 is conical; when the telescopic device 12 is contracted, both ends are gathered in the middle to form a protrusion 18; the protrusion 18 is fitted in the neck of the bladder Mouth.

Please refer to FIG. 5 , which is a schematic diagram of the three-dimensional structure of the outer sheath. The contour surface of the projection 18 of the telescoping device 12 is an arc surface; the proximal end of the base 13 is provided with a cross or inline pre-opened rubber sealing cap 24; the base 13 is also provided with side wings 19; The adjuster 15 is provided with a card slot 16 .

It should be noted that: the bladder decompression device can be set to different working lengths according to the different physiological characteristics of the urinary system of male and female patients (the urethra of female patients is shorter, and the urethra of male patients is longer); the end faces of the inner core 2 are conical Shape, so that the inner core 2 avoids damage when it is placed into the urethra; the distal end of the inner core 2 is matched with the outer sheath 1, and in the use state, when the inner core 2 is placed, the telescopic device 12 can be restored, and when the inner core 2 When withdrawing, under the action of the inner core 2, the telescopic device 12 draws both ends toward the middle to form a protrusion 18, which is fitted in the neck of the bladder to prevent the outer sheath 1 from falling off; the distal end of the outer sheath 1 The outer peripheral surface of the drainage port 11 is a conical surface. On the one hand, it can prevent the outer sheath 1 from damaging the inner wall of the bladder. On the other hand, it can have a good force between the inner core 2. 12. Auxiliary telescopic device 12 restores; when the inner core 2 withdraws, its force acts on the telescopic device 12 to form a protrusion 18; the I-shaped handle 21 is embedded with the base 13 on the outer sheath 1 through the fitting block 22 to prevent the inner core 2 from falling out during the insertion process, and the stripe groove 23 on the handle 21 increases the friction with the human hand, which has strong controllability and can reasonably control the insertion and withdrawal of the inner core 2; The side wings 19 facilitate the operation of the outer sheath 1; the side pipe 14 is a channel for releasing liquid; the rubber sealing cap 24 is screwed onto the base 13 through a screw thread or a luer joint, or is directly injection molded on the base 13 and connected with it. As one body, its function is to insert the endoscope and prevent water leakage; the regulator 15 is used to control the flow rate of liquid released in the bladder and the opening and closing of the discharge port 17, so that the bladder can be reasonably decompressed.

A method of using the ureteroscopic bladder decompression device of the present invention is as follows: firstly, insert the inner core 2 into the outer sheath 1, then send it to the bladder through the urethra, withdraw the inner core 2 after the urine flows out, and then the outer sheath The distal end of 1 is in a retracted state, and a protrusion 18 is formed to fit into the neck of the bladder, effectively preventing the outer sheath 1 from falling off; Just exit as a whole.

A ureteroscope bladder decompression device of the present invention releases the liquid in the bladder through the outer sheath 1, and at the same time controls the opening and closing of the drain port 17 through the regulator 15, so as to realize bladder decompression without repeatedly withdrawing the mirror and avoiding the liquid in the bladder. Continuous increase leads to excessive pressure in the bladder or bladder damage; the protrusion 18 formed by the telescopic device 12 is embedded in the neck of the bladder to prevent the outer sheath 1 from falling off, no need to inject normal saline, and the surgical field of view is clear and the surgical efficiency is high; through The inner core 2 controls the contraction and recovery of the telescopic device 12, which is easy to operate and minimally invasive; the outer sheath 1 is pierced with the inner core 2 before and after the operation, which has the function of dredging and guiding, and can prevent the outer sheath 1 from being blocked; The end surfaces of the inner core 2 and the outer sheath 1 are both conical surfaces, which have a buffer transition effect with the inner wall of the bladder, so as to prevent the doctor from cutting the inner wall of the bladder due to improper force during operation.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the method of the present invention, some improvements and supplements can also be made, and these improvements and supplements should also be considered Be the protection scope of the present invention.

Claims (10)

1. a ureteroscope bladder decompressor, is characterized in that, described decompressor comprises epitheca and inner core; Described inner core is placed in epitheca; Described inner core far-end stretches out epitheca; Described inner core near-end is connected to epitheca end; Described outer sheath distal is provided with retractor device; Described epitheca near-end is provided with pedestal; Described pedestal is provided with side pipe; Described side pipe is connected with actuator; Described actuator is provided with draw-in groove; Under described retractor device contraction state, two ends are drawn in centre and are formed projection; Described raised profile face is arcwall face.

2. bladder decompressor according to claim 1, is characterized in that, described inner core far-end is coniform, and end face is arc transition connection; Described inner core near-end is provided with work shape handle.

3. bladder decompressor according to claim 2, is characterized in that, described work shape handle runs through inner core up and down.

4. bladder decompressor according to claim 2, is characterized in that, described work shape handle near-end medial surface is provided with and agrees with block to inner spindle to what protrude; Described work shape handle distal exterior face is provided with bar groove.

5. bladder decompressor according to claim 1, is characterized in that, described outer sheath distal is draining hole.

6. bladder decompressor according to claim 5, is characterized in that, described draining hole is coniform.

7. bladder decompressor according to claim 1, is characterized in that, described side pipe end is leakage fluid dram.

8. bladder decompressor according to claim 1, is characterized in that, described pedestal near-end is provided with the rubber seal cap of cross or the pre-opening of in-line.

9. bladder decompressor according to claim 1, is characterized in that, described pedestal is also provided with flank.

10. bladder decompressor according to claim 2, is characterized in that, described work shape handle is by agreeing with the pedestal tabling on block and epitheca.