CN112089476A

CN112089476A - Urinary calculus plugging device

Info

Publication number: CN112089476A
Application number: CN202010624650.9A
Authority: CN
Inventors: 周颖琛; 王燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2020-12-18

Abstract

The invention discloses a urinary calculus plugging device for urinary calculus operation, which can solve the problems of drift of calculus and deposition of calculus dust in the operation and shorten the operation time. The device comprises a catheter, an umbrella-shaped plugging membrane, a dial, a spiral propeller and an inner core. The catheter is made of soft and high-elasticity polyurethane with a hydrophilic lubricating coating on the surface, and the scale of the catheter can be seen by the dial; the umbrella-shaped plugging membrane is medical hydrophilic, is supported and fixed on the support frame by an elastic stainless steel wire and is stretched and contracted by a telescopic memory alloy spring outside the inner core; the dial is made of transparent plastic materials, and scales on the guide pipe can be seen; the spiral propeller is connected with the dial scale and can push the catheter to advance. The invention has the advantages of simple and convenient operation, good stability, high calculus removal rate, low manufacturing cost, few complications and the like in the using process.

Description

Urinary calculus plugging device

Technical Field

The invention relates to the field of medical instruments, in particular to a calculus plugging device for urology surgery.

Background field of the invention

The incidence of urinary calculus is increased year by year in the world and in nearly 40 years in China, the 1-year postoperative recurrence rate is about 10% -23%, the 5-10-year recurrence rate is about 50%, the urinary calculus can occur in any part of kidney, ureter, bladder and urethra, the serious urinary calculus can affect the physical and mental health and the life quality of patients for a long time, and the serious disease can develop into urinary tract obstruction, recurrent urinary tract infection, urothelial injury, even uremia, cancer and the like. The main surgical modes are as follows: renal parenchyma dissection stone removal, renal sinus or renal pelvis dissection stone removal, percutaneous nephrolithotomy (PCNL), transurethral ureteroscopy stone removal, transurethral bladder stone removal. With the improvement of medical technology and the development of medical instruments, doctors and patients pursue higher quality of operation and higher wound recovery, and the proportion of endoscopic lithotripsy is heavier. However, the drift of a large amount of debris and gravels formed during the operation leads to the increase of the difficulty of the operation, the reduction of the clearance rate, the high forming rate of the stone street after the operation and the like, and can increase the operation complications. Therefore, several kinds of calculi occluding devices have been developed to reduce the corresponding complications and improve the clearance rate.

The Chinese patent publication No. CN 208799279U, CN 207755331U, CN203591285U, the invention and creation name is calculus plugging device, they basically include sheath, inner core and propeller, the inner core is set in the sheath, the propeller is mounted on the near end of the sheath, the far end of the inner core is basically net-shaped mantle fiber, balloon. Although the invention reduces drift of calculus in operation to a certain extent and improves calculus removal rate, drift and debris removal rate of small calculus cannot be prevented, and the air bag type occluder is easily damaged by high temperature and high pressure of calculus and calculus breaking device. CN 209091529U, the invention creation also called calculus plugging device includes outer sheath pipe, sliding ring, shell fragment, accomodate cloth, traveller, disinfection storage box structure, calculus collection box device, auxiliary lighting lamp device, lubricated sponge ball structure, tractive pipe, fixed bracelet, adjust bracelet, limiting plate, ring and cardboard, be favorable to accommodating the calculus bits to a certain extent, for calculus plugging device provide lubrication, provide auxiliary lighting, still have the shortcoming such as storage device complicacy, the cost is expensive, the apparatus accounts for than great, the practicality is low.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the urinary calculus plugging device which not only can reduce the drift of calculus in the operation to a certain extent and improve the removal rate of the broken stone, but also has the characteristics of convenience in manual control, simplicity and convenience in operation, safety, reliability, strong practicability, low cost and the like.

In order to solve the technical problems, the technical scheme of the invention is as follows: a calculus plugging device comprises a catheter, an umbrella-shaped plugging membrane supporting frame, a dial, a spiral propeller and an inner core, wherein the umbrella-shaped plugging membrane device is fixed on the inner core, the spiral propeller pushes and presses the catheter and the umbrella-shaped plugging membrane supporting frame forwards to enable a telescopic memory alloy spring to contract, and the umbrella-shaped plugging membrane is opened;

furthermore, the far end of the catheter and the far end of the guide wire are integrated and cannot slide;

furthermore, the tip of the umbrella-shaped plugging membrane is fixed at the far end of the catheter and the far end of the guide wire, and the inner side of the umbrella-shaped plugging membrane is fused with 4 support steel wires, so that the umbrella-shaped plugging membrane is convenient to fold and unfold;

furthermore, each supporting steel wire is connected with the steel wire on the supporting frame;

furthermore, the support frame is connected with the elastic memory alloy spring, and the size of the umbrella can be controlled along with the expansion of the spring;

further, the catheter is separated from the inner core, and the inner core is fixed when the catheter is pushed;

furthermore, the guide pipe penetrates through the middle of the dial and is fixed in the spiral propeller, the spiral propeller is fused with the dial, the guide pipe is pushed to move forwards through threads, and the inner core is kept still inside;

in the invention, the supporting steel wire has strong flexibility, has a support function, can resist violent damage, ensures the stability of the umbrella and prevents the umbrella-shaped structure from being damaged;

according to the invention, the umbrella-shaped plugging membrane is high temperature resistant and wear resistant, the filter holes are formed in the net to filter water, the hydrophilic membrane can protect the kidney from being damaged and can fix stones and broken stones, and meanwhile, the umbrella-shaped structure can contain broken powder and broken stones, so that the clearance rate is improved and the formation of a stone street is prevented;

according to the invention, the dial can check the opening size of the umbrella-shaped plugging membrane, so that the kidney and the instrument are prevented from being damaged by overlarge opening;

according to the invention, the spiral propeller can stably propel, prevent slipping, enhance controllability and stability and is simple to operate.

Drawings

FIG. 1 is a schematic structural diagram showing a tightened state of the umbrella-shaped urinary calculus plugging device of the present invention;

FIG. 2 is a schematic structural view showing the opened state of the umbrella-shaped urinary calculus blocking device of the present invention;

FIG. 3 is an enlarged schematic view of the local structure of the novel umbrella-shaped urinary calculus plugging device of the experiment;

fig. 4 is a bracket diagram of the plugging membrane of the novel umbrella-shaped urinary calculus plugging device and an enlarged schematic diagram of the structure of the plugging membrane.

Detailed description of the preferred embodiments

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in figures 1 to 4:

the invention provides an umbrella-shaped plugging device capable of improving the clearance rate of urinary calculus, which comprises a catheter front end, a catheter fourth, an umbrella-shaped plugging film second, an umbrella-shaped plugging film support frame third, a dial fifth, a spiral propeller sixth, an inner core seventh, a telescopic memory alloy spring eighth, a support steel wire ninth and TPU umbrella cloth.

In the embodiment, the umbrella-shaped plugging membrane is opened into an umbrella-shaped structure, so that the crushed stone can enter the umbrella bottom along with water flow, and water can seep out through the umbrella membrane;

in this embodiment, the umbrella-shaped plugging membrane is combined with the supporting steel wire and fixed on the supporting frame. The support frame is pushed along with the spiral propeller;

in this embodiment, the inner core passes through the center of the catheter. The distal end of the catheter is fused with the inner core, and the rest can slide on the guide wire;

in the embodiment, the scale of the catheter can be seen on the dial plate, the catheter advances by one scale, the umbrella-shaped plugging membrane is opened by one degree, and the advancing degree is 5-8 degrees;

in the embodiment, the spiral propeller is fixed on the dial, the catheter is fixed with the spiral propeller, and the spiral propeller is screwed into the dial to push the catheter to advance to open the umbrella-shaped plugging film structure;

in this embodiment, the auger retracts to retract the umbrella-shaped plugging membrane.

When the urinary calculus plugging device is used, the urinary calculus plugging device enters the vicinity of calculus under a mirror, the umbrella-shaped plugging membrane is pushed to pass through the calculus end gently, the spiral propeller is screwed clockwise, the umbrella-shaped plugging membrane structure is opened, the calculus is crushed by the calculus crushing instrument, and the spiral propeller is screwed anticlockwise after the calculus crushing is finished, so that the calculus is withdrawn. Then, the operation is simple, safe and reliable, the practicability is strong, the broken stone drift and the broken stone residue can be effectively prevented, the clearance rate is improved, and the operation time is shortened.

The above description is only an explanation of the best operation of the urinary calculus plugging device of the present invention, and it is within the scope of the present invention to utilize the technical solutions of the present invention or to design similar technical solutions by those skilled in the art based on the teachings of the technical solutions of the present invention to achieve the above effects.

Claims

1. A urinary system calculus plugging device comprises a catheter front end, a catheter fourth, an umbrella-shaped plugging membrane second, an umbrella-shaped plugging membrane support frame third, a dial fifth, a spiral propeller sixth, an inner core seventh, a telescopic memory alloy spring third, a support steel wire ninth and a TPU umbrella cloth third.

2. The catheter of claim 1, which is flexible, resilient, less deformable, thick, and conformable to a wide range of drainage diameters, biocompatible, non-injurious to tissue, non-irritating, and X-ray developable. The catheter can be in various types, wherein the outer diameter of the catheter is 4-10F, and the length is as follows: 15-40 cm.

3. The umbrella shaped occlusion membrane of claim 1, which is made of medical grade TPU material, has hydrophilicity, good histocompatibility, surface mesh to facilitate water overflow, elasticity and toughness, and no irritation.

4. The umbrella-shaped occlusion membrane support frame of claim 1, which is small, not easily deformed, smooth, slightly larger in diameter than the compression spring, and non-injurious and non-irritating to tissues.

5. The device of claim 1, wherein the auger is integrated with a dial to move the catheter during use to control the expansion and contraction of the spring to open or contract the umbrella-shaped occluding membrane.