Urinary system calculus discharge promoting device and calculus extractor

Abstract

The invention provides a urinary system calculus discharge promoting device and a calculus extractor, and relates to the technical field of urinary surgery equipment. Comprising a first taking-out branch pipe, a second taking-out branch pipe is arranged in the first taking-out branch pipe in a sleeved mode, a filling air bag is arranged at the end of the first taking-out branch pipe, a stone crushing mechanism is arranged at the end of the second taking-out branch pipe, a third taking-out branch pipe is arranged in the second taking-out branch pipe in a sleeved mode, and a stone crushing ejector pin is arranged on the inner side of the third taking-out branch pipe; the outer end of the third taking-out branch pipe is connected with a pressure pumping device; compared with the prior art, the lithotripter is simple in structure, convenient to use, capable of effectively completing lithotripsy operation and convenient for lithotripsy.

Description

Technical Field

[0001] The present invention relates to the technical field of urological surgical equipment, and in particular to a device for promoting the discharge of urinary stones and a stone extractor. Background Art

[0002] Urinary stones are a common disease of the urinary system. Stones can be found in any part of the kidney, bladder, ureter and urethra. Kidney and ureteral stones are the most common, accounting for about 80% of urinary stones. The surgical methods for removing stones include percutaneous nephrolithotomy and laparoscopic incision and ureteroscopic laser lithotripsy. Among them, ureteroscopic laser lithotripsy is performed through the natural cavity of the human body. It is a minimally invasive treatment method for urinary stones. When the location of the stone and other surgical conditions meet the surgical conditions, it is a common and efficient stone treatment program.

[0003] Most existing stone removal devices have a simple structure and are unable to effectively promote the excretion and removal of more stubborn stones. At the same time, the injection of flushing fluid may cause the refined stones to move further along the ureter to the upper part of the ureter, or even move into the renal pelvis or calyx under impact, affecting the treatment effect and increasing the treatment cost.

[0004] Therefore, there is an urgent need for a urinary system stone excretion promoting device and a stone extractor to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a urinary system stone excretion promoting device and a stone extractor, which has a simple structure, is easy to use, can effectively complete the lithotripsy operation, and is convenient for stone removal.

[0006] The embodiment of the present invention is achieved as follows:

[0007] The embodiment of the present application provides a urinary stone excretion promoting device and a stone extractor, which includes a first extraction branch tube, a second extraction branch tube sleeved inside the first extraction branch tube, a filling air bag is provided at the end of the first extraction branch tube, a lithotripsy mechanism is provided at the end of the second extraction branch tube, a third extraction branch tube sleeved inside the second extraction branch tube, and a lithotripsy ejector is provided on the inner side of the third extraction branch tube; the outer end of the third extraction branch tube is connected to a suction and pressure device.

[0008] In some embodiments of the present invention, an annular groove is provided at the top of the first removal branch, and a filling airbag is arranged in the annular groove. The cross-section of the filling airbag is "U"-shaped, and an inflation tube is provided at the bottom of the filling airbag. The inflation tube passes through the first removal branch and is located on the outside thereof.

[0009] In some embodiments of the present invention, the above-mentioned stone crushing mechanism includes a fixed ring plate and a movable ring plate, and the fixed ring plate and the movable ring plate are both arranged on the inner side of the second removal branch pipe; a threaded tube is arranged in the second removal branch pipe, and a bevel gear ring is arranged on the outer side of the movable ring plate, and the threaded tube is meshed with the bevel gear ring; an annular groove is arranged in the second removal branch pipe, and the movable ring plate is slidably connected to the second removal branch pipe.

[0010] In some embodiments of the present invention, the fixed ring pieces and the movable ring pieces are arranged in multiple groups at intervals.

[0011] In some embodiments of the present invention, a support frame is provided in the third removal branch pipe, and a stone crushing thimble is provided on the support frame; a water flow hole is provided at the top of the stone crushing thimble.

[0012] In some embodiments of the present invention, the water flow hole is arranged on one side of the gravel ejector pin, a water flow pipe is arranged in the support frame, and the water flow pipe is connected to the water flow hole; a pressure water pump is arranged in connection with the water flow pipe.

[0013] In some embodiments of the present invention, three of the above-mentioned support frames are evenly arranged around the gravel ejector pin.

[0014] In some embodiments of the present invention, both the first and second extraction branch pipes are provided with limiting sliding grooves, and the second and third extraction branch pipes are slidably connected to the limiting sliding grooves.

[0015] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0016] Most of the existing stone removal devices have a simple structure and cannot effectively promote the excretion and removal of stubborn stones. The present application provides a urinary system stone excretion promotion device and a stone remover, which includes a first extraction branch, a second extraction branch is sleeved inside the first extraction branch, a filling air bag is provided at the end of the first extraction branch, a lithotripsy mechanism is provided at the end of the second extraction branch, a third extraction branch is sleeved inside the second extraction branch, and a lithotripsy ejector is provided inside the third extraction branch; the outer end of the third extraction branch is connected to a suction and pressure device.

[0017] The present invention arranges a filling air bag at the end of the first extraction branch, so that the filling air bag is inflated to slightly prop up the stone extraction area, so that the stone is separated from the inner wall of the gallbladder, which is convenient for the stone extraction operation; the stone crushing mechanism arranged at the end of the second extraction branch can process and cut larger stones, which is convenient for the discharge of stones; the stone crushing ejector arranged inside the third extraction branch can loosen and split the stones by impact. The first extraction branch, the second extraction branch and the third extraction branch are respectively sleeved, so that medical staff can adjust the position of the front end mechanism according to the actual situation of the patient by pumping the first extraction branch, the second extraction branch and the third extraction branch, and then cooperate with the suction and pressure device connected to the third extraction branch to assist in sucking out the stones and complete the stone crushing and stone extraction operation, thereby improving the practicality and adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the main elevation structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention.

[0021] Figure numerals: 1. first removal branch; 2. second removal branch; 3. third removal branch; 4. filling air bag; 5. inflation tube; 6. threaded tube; 7. gravel ejector pin; 8. support frame; 9. annular groove; 10. annular empty groove; 11. fixed ring piece; 12. movable ring piece; 13. bevel gear ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example:

[0025] Please refer to the attached Figure 1-2 The present embodiment provides a urinary stone excretion promoting device and a stone extractor, which include a first extraction branch tube 1, a second extraction branch tube 2 is sleeved inside the first extraction branch tube 1, a filling air bag 4 is provided at the end of the first extraction branch tube 1, a lithotripsy mechanism is provided at the end of the second extraction branch tube 2, a third extraction branch tube 3 is sleeved inside the second extraction branch tube 2, and a lithotripsy ejector 7 is provided inside the third extraction branch tube 3; the outer end of the third extraction branch tube 3 is connected to the suction and pressure device.

[0026] Most of the existing stone removal devices have a single structure, and cannot effectively promote the discharge and removal of more stubborn stones. The present invention sets a filling airbag 4 at the end of the first removal branch 1, so that the filling airbag 4 is inflated to slightly prop up the stone removal area, so that the stone is separated from the inner wall of the gallbladder, which is convenient for the stone removal operation; the stone crushing mechanism set at the end of the second removal branch 2 allows it to process and cut larger stones, which is convenient for the discharge of stones; the stone crushing pin 7 set on the inner side of the third removal branch 3 can loosen and split the stones by impact. The first removal branch 1, the second removal branch 2 and the third removal branch 3 are respectively sleeved, so that medical staff can adjust the position of the front-end mechanism by pumping the first removal branch 1, the second removal branch 2 and the third removal branch 3 according to the actual situation of the patient, and then cooperate with the suction and pressure device connected to the third removal branch 3 to assist in sucking out the stones to complete the stone crushing and stone removal operation, thereby improving the practicality and adaptability of the device.

[0027] In some embodiments of the present invention, the top of the first extraction branch 1 is provided with an annular groove 9, the filling airbag 4 is arranged in the annular groove 9, the cross section of the filling airbag 4 is in a "U" shape, and the bottom of the filling airbag 4 is provided with an inflation tube 5, which passes through the first extraction branch 1 and is located outside the filling airbag 4. The "U"-shaped filling airbag 4 can well support the affected part, and the setting of the inflation tube 5 can facilitate medical staff to control the filling and contraction of the filling airbag 4; the annular groove 9 facilitates the storage of the deflated filling airbag 4.

[0028] In some embodiments of the present invention, the above-mentioned stone crushing mechanism includes a fixed ring piece 11 and a movable ring piece 12, and the fixed ring piece 11 and the movable ring piece 12 are both arranged on the inner side of the second extraction branch pipe 2; a threaded tube 6 is arranged in the second extraction branch pipe 2, and a helical tooth ring 13 is arranged on the outer side of the movable ring piece 12, and the threaded tube 6 is meshed with the helical tooth ring 13; an annular empty groove 10 is arranged in the second extraction branch pipe 2, and the movable ring piece 12 is slidably connected with the second extraction branch pipe 2. The arrangement of the fixed ring piece 11 and the movable ring piece 12 can decompose larger stones, and the inner sides of the fixed ring piece 11 and the movable ring piece 12 are provided with a grinding structure, such as a protrusion or a cutter structure; further, the closer the fixed ring piece 11 and the movable ring piece 12 are to the port of the second extraction branch pipe 2, the smaller their inner diameters are. The threaded tube 6 is meshed with the helical tooth ring 13, and medical staff can rotate the movable ring piece 12 by pulling the threaded tube 6, thereby decomposing stones.

[0029] In some embodiments of the present invention, multiple groups of fixed ring pieces 11 and movable ring pieces 12 are arranged at intervals. Multiple groups of fixed ring pieces 11 and movable ring pieces 12 arranged at intervals can greatly enhance the effect of splitting stones.

[0030] In some embodiments of the present invention, a support frame 8 is provided in the third extraction branch pipe 3, and a stone crushing thimble 7 is provided on the support frame 8; a water flow hole is provided at the top of the stone crushing thimble 7. The water flow hole provided at the top of the stone crushing thimble 7 can achieve the effect of water flow impact and softening stones.

[0031] In some embodiments of the present invention, a water flow hole is arranged on one side of the stone crushing pin 7, a water flow pipe is arranged in the support frame 8, and the water flow pipe is connected to the water flow hole; a suction water pump is arranged in the water flow pipe. The water flow hole is arranged on one side of the stone crushing pin 7, and when the stone crushing pin 7 enters the inside of the stone, it can impact the side stone to prevent the refined stone from moving upward. Three support frames 8 are evenly arranged around the stone crushing pin 7, and the supporting effect is stronger; further, the width of the side of the support frame 8 close to the port of the third extraction branch pipe 3 is smaller than the side away from the port.

[0032] In some embodiments of the present invention, both the first extraction branch pipe 1 and the second extraction branch pipe 2 are provided with limiting slide grooves, and the second extraction branch pipe 2 and the third extraction branch pipe 3 are slidably connected with the limiting slide grooves. The setting of the limiting slide grooves strengthens the structural strength among the three and avoids unnecessary rotation.

[0033] In summary, the embodiment of the present invention provides a urinary system stone discharge promoting device and a stone extractor, which includes a first extraction branch 1, a second extraction branch 2 is sleeved in the first extraction branch 1, a filling air bag 4 is arranged at the end of the first extraction branch 1, a stone crushing mechanism is arranged at the end of the second extraction branch 2, a third extraction branch 3 is sleeved in the second extraction branch 2, and a stone crushing thimble 7 is arranged inside the third extraction branch 3; the outer end of the third extraction branch 3 is connected to the pumping device. The present invention arranges a filling air bag 4 at the end of the first extraction branch 1, so that the filling air bag 4 is inflated to slightly prop up the stone extraction area, so that the stone is separated from the inner wall of the gallbladder, which is convenient for the stone extraction operation; the stone crushing mechanism is arranged at the end of the second extraction branch 2, so that it can process and cut larger stones, which is convenient for the discharge of stones; the stone crushing thimble 7 is arranged inside the third extraction branch 3, and the stone can be loosened and split by impact. The first removal branch tube 1, the second removal branch tube 2 and the third removal branch tube 3 are respectively sleeved, so that medical staff can adjust the position of the front-end mechanism according to the actual situation of the patient by pumping the first removal branch tube 1, the second removal branch tube 2 and the third removal branch tube 3, and then cooperate with the suction and pressure device connected to the third removal branch tube 3 to assist in sucking out the stones and complete the lithotripsy operation, thereby improving the practicality and adaptability of the device.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for promoting the discharge of urinary stones and a stone extractor, characterized in that: It includes a first removal branch tube, a second removal branch tube is sleeved inside the first removal branch tube, a filling air bag is provided at the end of the first removal branch tube, a stone crushing mechanism is provided at the end of the second removal branch tube, a third removal branch tube is sleeved inside the second removal branch tube, and a stone crushing pin is provided on the inner side of the third removal branch tube; the outer end of the third removal branch tube is connected to the suction and pressure device.

2. The urinary system stone excretion promoting device and stone extractor according to claim 1, characterized in that: The top of the first removal branch is provided with an annular groove, the filling airbag is arranged in the annular groove, the cross section of the filling airbag is "U" shaped, and the bottom of the filling airbag is provided with an inflation tube, which passes through the first removal branch and is located outside the first removal branch.

3. The urinary system stone excretion promoting device and stone extractor according to claim 1, characterized in that: The stone crushing mechanism includes a fixed ring plate and a movable ring plate, and the fixed ring plate and the movable ring plate are both arranged on the inner side of the second removal branch pipe; a threaded tube is arranged in the second removal branch pipe, and a helical gear ring is arranged on the outer side of the movable ring plate, and the threaded tube is meshed with the helical gear ring; an annular groove is arranged in the second removal branch pipe, and the movable ring plate is slidably connected to the second removal branch pipe.

4. The urinary system stone excretion promoting device and stone extractor according to claim 3, characterized in that: The fixed ring pieces and the movable ring pieces are arranged in multiple groups at intervals.

5. The urinary system stone excretion promoting device and stone extractor according to claim 1, characterized in that: A support frame is arranged in the third extraction branch pipe, and the stone crushing thimble is arranged on the support frame; and a water flow hole is arranged at the top of the stone crushing thimble.

6. The urinary system stone excretion promoting device and stone extractor according to claim 5, characterized in that: The water flow hole is arranged on one side of the gravel ejector pin, a water flow pipe is arranged in the support frame, and the water flow pipe is connected with the water flow hole; a suction water pump is arranged in connection with the water flow pipe.

7. The urinary system stone excretion promoting device and stone extractor according to claim 6, characterized in that: The support frames are evenly arranged with three around the gravel ejector pins.

8. The urinary system stone excretion promoting device and stone extractor according to claim 1, characterized in that: The first taking-out branch pipe and the second taking-out branch pipe are both provided with limiting sliding grooves, and the second taking-out branch pipe and the third taking-out branch pipe are slidably connected with the limiting sliding grooves.

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