Stone grabber for urology department

Abstract

The stone grabber for the urology department comprises an outer tube, and a pressing assembly is arranged at the top of the outer tube; an inner pipe is slidably connected to the interior of the outer pipe, a plug is fixedly connected to the bottom end of the inner pipe, a grabbing groove is formed in the inner pipe and located in the position, close to the bottom, of the inner pipe, an air bag is fixedly connected to the circumferential surface of the inner pipe, and a containing groove is further formed in the circumferential surface of the inner pipe. The containing groove is located above the air bag, an air inlet pipe is arranged in the containing groove, the bottom end of the air inlet pipe is connected with the air bag, and a guide pipe is fixedly connected to the circumferential face of the outer pipe. By arranging the guide pipe, the air inlet pipe, the air bag and the containing groove, and the section of the inner side of the air bag is conical, in the pulling process of the inner pipe, calculi can automatically enter the grabbing groove along the inclined face of the inner side of the air bag, rapid grabbing of the calculi is facilitated, the structural design is reasonable, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a stone grabber for urology. Background Art

[0002] Urinary tract stones are one of the most common urological diseases. They are more common in men than in women, with a ratio of approximately 4 to 5:1. Urinary stones form in the kidneys and bladder. Upper and lower urinary tract stones differ significantly in their formation mechanisms, etiology, stone composition, and epidemiology. The majority of upper urinary tract stones are calcium oxalate.

[0003] After searching, the existing Chinese patent, application number is "CN202222351516.3", named "A stone grasper for urology". This patent can make the grasping tube extend and retract inside the outer tube by pressing the designed pressing block, so that the grasping groove is exposed, and the stone is wrapped by the grasping groove. Then the pressed pressing block is released, and the spring will rebound and push the pressing block back, so that the grasping tube slides and plugs inside the outer tube, so that the grasping groove is contracted inside the outer tube. By retracting the stone, it will not fall out when the grasper is retracted. However, during the use of this structure, the stone cannot quickly and accurately enter the interior of the grasping groove, and multiple attempts are required. Utility Model Content

[0004] The purpose of the utility model is to provide a stone grasper for urology. When the inner tube is pulled, the stone will automatically enter the interior of the grasping groove along the inclined surface on the inner side of the airbag, which is convenient for rapid grasping of the stone. The structure is reasonably designed and easy to operate.

[0005] To achieve the above object, a urology stone grabber is provided, comprising an outer tube, a pressing assembly being provided at the top of the outer tube;

[0006] The inner tube is slidably connected to the inner part of the outer tube, and the bottom end of the inner tube is fixedly connected to a plug. A grabbing groove is provided inside the inner tube, and the grabbing groove is located near the bottom of the inner tube. An air bag is fixedly connected to the circumferential surface of the inner tube, and a placement groove is also provided on the circumferential surface of the inner tube, and the placement groove is located above the air bag. An air intake pipe is provided inside the placement groove, and the bottom end of the air intake pipe is connected to the air bag. A guide pipe is fixedly connected to the circumferential surface of the outer tube, and the top end of the air intake pipe extends to the outside through the guide pipe.

[0007] According to the described stone grasper for urology, the pressing assembly includes a handle, a sliding hole, an extrusion groove, a limiting rod, a limiting block, a slider, a pressing block, a spring and a pressing plate. The handle is fixedly connected to the top end of the outer tube, the sliding hole is arranged inside the handle, the extrusion groove is arranged on the side wall of the sliding hole, the limiting rod is fixedly connected inside the extrusion groove, the limiting block is fixedly connected to the top of the limiting rod, the slider is slidably connected to the circumferential surface of the limiting rod, the pressing block is slidably connected to the inside of the sliding hole, and the pressing block is fixedly connected to the slider, the top end of the inner tube is fixedly connected to the pressing block, the spring is sleeved on the circumferential surface of the limiting rod, and the spring is located below the slider, and the pressing plate is fixedly connected to the side wall of the pressing block.

[0008] According to the urology stone grabber, the number of the extrusion groove, the limiting rod, the limiting block, the sliding block and the spring are all provided in pairs, and are symmetrically arranged on the left and right sides of the sliding hole.

[0009] According to the urology stone grasper, there are two pressing plates, which are symmetrically arranged on the front and rear sides of the pressing block, and the pressing plates are adapted to the sliding holes.

[0010] According to the urology stone grabber, two "concave" grooves are provided at the bottom of the handle and are symmetrically arranged on the left and right sides of the inner tube.

[0011] According to the urology stone grasper, the cross-sectional shape of the airbag is funnel-shaped.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting up a guide tube, an air inlet tube, an air bag and a placement groove, and the inner cross-section of the air bag is conical, when the inner tube is pulled, the stone will automatically enter the inside of the grasping groove along the inclined surface inside the air bag, which is convenient for rapid grasping of the stone. The structural design is reasonable and the operation is convenient.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a urology stone grabber of the present invention;

[0017] Figure 2 This is a partial structural cross-sectional view of a urology stone grabber according to the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure of A in the middle;

[0019] Figure 4 This is a schematic diagram of the air bag structure of a urology stone grabber in the present invention;

[0020] Figure 5 for Figure 4 Schematic diagram of the structure of middle B;

[0021] Figure 6 This is a front sectional view of an air bag of a urology stone grabber according to the present invention.

[0022] In the figure: 1. Outer tube; 2. Handle; 3. Slide hole; 4. Extrusion groove; 5. Limit rod; 6. Limit block; 7. Slider; 8. Press block; 9. Spring; 10. Inner tube; 11. Grasping groove; 12. Plug; 13. Guide tube; 14. Inlet pipe; 15. Airbag; 16. Placement groove; 17. Press plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0024] See also Figure 1-6 , the utility model provides a technical solution: a urology stone grabber, comprising an outer tube 1, the top of which is provided with a pressing component;

[0025] The pressing assembly includes a handle 2, a sliding hole 3, an extrusion groove 4, a limiting rod 5, a limiting block 6, a slider 7, a pressing block 8, a spring 9 and a pressing plate 17, wherein the setting of the handle 2 is convenient for the user to control the movement of the outer tube 1, the setting of the sliding hole 3 is convenient for the pressing block 8 to move up and down, the setting of the extrusion groove 4, the limiting rod 5 and the slider 7 is convenient for limiting the pressing block 8 so that the pressing block 8 can slide stably inside the sliding hole 3, the setting of the limiting block 6 prevents the slider 7 from falling off the limiting rod 5, the setting of the spring 9 is mainly used to restore the pressing block 8 to its initial state after being pressed, and the setting of the pressing plate 17 is mainly used to control the downward movement of the pressing block 8;

[0026] The handle 2 is fixedly connected to the top of the outer tube 1, the sliding hole 3 is provided inside the handle 2, the extrusion groove 4 is provided on the side wall of the sliding hole 3, the limiting rod 5 is fixedly connected to the inside of the extrusion groove 4, the limiting block 6 is fixedly connected to the top of the limiting rod 5, the slider 7 is slidably connected to the circumferential surface of the limiting rod 5, the pressing block 8 is slidably connected to the inside of the sliding hole 3, and the pressing block 8 is fixedly connected to the slider 7, the top of the inner tube 10 is fixedly connected to the pressing block 8, the spring 9 is sleeved on the circumferential surface of the limiting rod 5, and the spring 9 is located below the slider 7, and the pressing plate 17 is fixedly connected to the side wall of the pressing block 8;

[0027] There are two extrusion grooves 4, limit rods 5, limit blocks 6, sliders 7, and springs 9, and they are symmetrically arranged on the left and right sides of the slide hole 3. There are two pressing plates 17, and they are symmetrically arranged on the front and back sides of the pressing block 8. The pressing plates 17 are adapted to the slide hole 3. Two "concave" grooves are provided at the bottom of the handle 2, and they are symmetrically arranged on the left and right sides of the inner tube 10.

[0028] The inner tube 10 is slidably connected to the inner tube 10, and the bottom end of the inner tube 10 is fixedly connected to a plug 12. A grabbing groove 11 is provided inside the inner tube 10, and the grabbing groove 11 is located near the bottom of the inner tube 10. An airbag 15 is fixedly connected to the circumferential surface of the inner tube 10. The airbag 15 will fit the inner wall of the urinary tract after inflation. In the process of pulling the outer tube 1, the airbag 15 will collect the stones, and finally automatically slide to the inside of the grabbing groove 11 under the action of the inner inclined surface of the airbag 15. The circumferential surface of the inner tube 10 A placement groove 16 is also provided on the upper portion, and the placement groove 16 is located above the airbag 15. The placement groove 16 is mainly used to place the air intake pipe 14 to prevent the air intake pipe 14 from being squeezed during the sliding of the inner tube 10 inside the outer tube 1. The air intake pipe 14 is provided inside the placement groove 16, and the bottom end of the air intake pipe 14 is connected to the airbag 15. A guide tube 13 is fixedly connected to the circumferential surface of the outer tube 1, and the top end of the air intake pipe 14 extends to the outside through the guide tube 13. The cross-sectional shape of the airbag 15 is funnel-shaped.

[0029] Working principle: When in use, first insert the outer tube 1 into the human urinary tract through the handle 2, then push the airbag 15 out from the inside of the outer tube 1 through the pressing plate 17, and then inflate the inside of the airbag 15 through the air inlet pipe 14. After the inflation is completed, pull the outer tube 1, and at the same time, the stone enters the inside of the grasping groove 11 under the action of the airbag 15, thereby achieving the grasping of the stone.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A urology stone grabber, comprising an outer tube (1), the top of the outer tube (1) being provided with a pressing assembly, characterized in that: The inner tube (10) is slidably connected to the inner tube (10), and the bottom end of the inner tube (10) is fixedly connected to a plug (12). A grabbing groove (11) is provided inside the inner tube (10), and the grabbing groove (11) is located near the bottom of the inner tube (10). An air bag (15) is fixedly connected to the circumferential surface of the inner tube (10). A placement groove (16) is also provided on the circumferential surface of the inner tube (10), and the placement groove (16) is located above the air bag (15). An air intake pipe (14) is provided inside the placement groove (16), and the bottom end of the air intake pipe (14) is connected to the air bag (15). A guide pipe (13) is fixedly connected to the circumferential surface of the outer tube (1), and the top end of the air intake pipe (14) extends to the outside through the guide pipe (13).

2. The urology stone grabber according to claim 1, characterized in that: The pressing assembly comprises a handle (2), a sliding hole (3), an extrusion groove (4), a limiting rod (5), a limiting block (6), a slider (7), a pressing block (8), a spring (9) and a pressing plate (17); the handle (2) is fixedly connected to the top end of the outer tube (1); the sliding hole (3) is arranged inside the handle (2); the extrusion groove (4) is arranged on the side wall of the sliding hole (3); the limiting rod (5) is fixedly connected to the inside of the extrusion groove (4); the limiting block (6) is fixedly connected to the outer tube (17); At the top of the limiting rod (5), the slider (7) is slidably connected to the circumferential surface of the limiting rod (5), the pressing block (8) is slidably connected to the inside of the sliding hole (3), and the pressing block (8) is fixedly connected to the slider (7), the top end of the inner tube (10) is fixedly connected to the pressing block (8), the spring (9) is sleeved on the circumferential surface of the limiting rod (5), and the spring (9) is located below the slider (7), and the pressing plate (17) is fixedly connected to the side wall of the pressing block (8).

3. The urology stone grabber according to claim 2, characterized in that: The extrusion groove (4), the limiting rod (5), the limiting block (6), the sliding block (7) and the spring (9) are each provided in two pieces and are symmetrically arranged on the left and right sides of the sliding hole (3).

4. The urology stone grabber according to claim 2, characterized in that: There are two pressing plates (17) and they are symmetrically arranged on the front and rear sides of the pressing block (8). The pressing plates (17) are adapted to the sliding holes (3).

5. The urology stone grabber according to claim 2, characterized in that: The bottom of the handle (2) is provided with two "concave"-shaped grooves, which are symmetrically arranged on the left and right sides of the inner tube (10).

6. The urology stone grabber according to claim 1, characterized in that: The cross-sectional shape of the air bag (15) is funnel-shaped.

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