Stone extractor
By incorporating anti-detachment blocks, a fixing frame, a guide rod, a spring, a stone-removing clamp, a sliding assembly, and a pressing assembly, the problem of stones falling out of the stone remover is solved, enabling reliable clamping and safe removal of the stones.
Patent Information
- Application Number
- CN202422899335.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In existing stone extractors, the hinged shell is opened and closed by a push rod. This means that when the arc-shaped clamp on the U-shaped clamp holds the stone and moves it into the storage shell, the hinged shell is in the open state, which increases the risk of the stone falling out of the storage shell.
The design incorporates an anti-dislodgement block, a fixing frame, a guide rod, a spring, a stone retrieval clamp, a sliding component, and a pressing component. The spring's elasticity causes the anti-dislodgement block to automatically reset and seal the bottom of the stone retrieval shell, preventing the stone from falling out.
It effectively prevents stones from falling out of the stone retrieval device, improving the safety and reliability of the procedure.
Smart Images
Figure CN223715768U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hepatobiliary surgery technical field especially, relates to a kind of stone extractor. BACKGROUND
[0002] In intrahepatic bile duct stone surgery, stone extractor needs to be used to take out stone, but the conventional stone extractor is easy to fall off when used, causing secondary injury to patients.
[0003] The existing patent CN220275681U a kind of hepatobiliary surgery stone extractor, by rotating rotating cylinder drives push rod along slide block to push open hinged shell, at this time, pinch press block and slide drive U-shaped clamp and arc clamp close to stone, by extruding press block to make U-shaped clamp cooperate with arc clamp, stone is clamped, in by sliding press block, stone is clamped to the inside of storage shell, next, rotating cylinder is closed hinged shell, finally, the whole device is taken out, the taking out of stone is completed.
[0004] But in the process of using the existing patent a kind of hepatobiliary surgery stone extractor, the opening and closing of the hinged shell in the device is realized by the pushing of push rod, when the arc clamp on the U-shaped clamp clamps stone and enters the storage shell, the hinged shell is in the open state, leading to the risk of stone falling from the storage shell. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of stone extractor, solve the opening and closing of the hinged shell in the foregoing device is realized by the pushing of push rod, when the arc clamp on the U-shaped clamp clamps stone and enters the storage shell, the hinged shell is in the open state, leading to the risk of stone falling from the storage shell Problem.
[0006] To achieve the above object, the utility model provides a kind of stone extractor, including stone extraction shell and opening and closing device, the opening and closing device is installed on the stone extraction shell, still include stone extraction device, the stone extraction device includes anti-drop block, fixed frame, guide rod, spring, stone extraction clamp, sliding assembly and press assembly, the fixed frame is fixedly installed on the outer side of the stone extraction shell, the guide rod is slidably installed on the fixed frame, the anti-drop block is slidably installed on the stone extraction shell and penetrates the stone extraction shell, the anti-drop block is also fixedly connected with the guide rod, the spring is sleeved on the guide rod and is located between the fixed frame and the anti-drop block, the stone extraction clamp is slidably installed in the stone extraction shell by the sliding assembly, and the press assembly is installed on the stone extraction clamp.
[0007] Among them, the sliding assembly includes mounting bracket and sliding bracket, the mounting bracket is fixedly installed in the stone extraction shell;The mounting bracket is equipped with sliding slot, the sliding bracket is slidably installed on the mounting bracket and penetrates the sliding slot, and the sliding bracket is fixedly connected with the stone extraction clamp.
[0008] The pressing assembly comprises a pressing rod and a pressing block, a vertical slot is arranged on the side of the stone taking shell away from the mounting frame, the pressing rod penetrates through the vertical slot and is fixedly connected with the stone taking clamp, and the pressing block is fixedly installed on the pressing rod and located outside the stone taking shell.
[0009] The stone taking device further comprises a clamp block and a protrusion, the clamp block is fixedly installed on the stone taking clamp, and the protrusion is arranged on the clamp block.
[0010] The opening and closing device comprises an end column and an anti-skid strip, the end column is threadedly connected with the stone taking shell, and the anti-skid strip is fixedly installed on the end column.
[0011] The stone taking device further comprises a clamp block and a protrusion, the clamp block is fixedly installed on the stone taking clamp, and the protrusion is arranged on the clamp block. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.
[0013] Figure 1 Fig. 1 is a schematic diagram of the overall structure of a stone taking device according to the first embodiment of the present application.
[0014] Figure 2 Fig. 2 is a schematic diagram of the structure of a stone taking device according to the first embodiment of the present application.
[0015] Figure 3 Fig. 3 is a schematic diagram of the connection of a stone taking clamp and a mounting frame according to the first embodiment of the present application.
[0016] Figure 4 Fig. 4 is a schematic diagram of the overall structure of a stone taking device according to the second embodiment of the present application.
[0017] Figure 5 Figure 2 is a connection diagram of the stone taking shell and the end column of the second embodiment of the utility model.
[0018] In the figure: 101-stone taking shell, 102-anti-drop block, 103-fixing frame, 104-guide rod, 105-spring, 106-stone taking clamp, 107-mounting frame, 108-sliding frame, 109-sliding groove, 110-pressing rod, 111-pressing block, 112-vertical slot, 113-clamping block, 114-protrusion, 201-end column, 202-anti-skid strip. DETAILED DESCRIPTION
[0019] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.
[0020] The first embodiment of the application is:
[0021] Please refer to Figures 1-3 , Figure 1 Figure 1 is a whole structure diagram of a stone taking device of the first embodiment of the utility model, Figure 2 Figure 2 is a structure diagram of the stone taking device of the first embodiment of the utility model, Figure 3 Figure 3 is a connection diagram of the stone taking clamp and the mounting frame of the first embodiment of the utility model.
[0022] The utility model provides a kind of stone taking device: including stone taking shell 101 and opening and closing device, further include stone taking device, the stone taking device includes anti-drop block 102, fixing frame 103, guide rod 104, spring 105, stone taking clamp 106, sliding assembly and pressing assembly, the sliding assembly includes mounting frame 107 and sliding frame 108, the pressing assembly includes pressing rod 110 and pressing block 111, the stone taking device further include clamping block 113 and protrusion 114, the opening and closing of the hinge shell in the foregoing device is realized by the pushing of push rod by the foregoing scheme, when the arc-shaped clamp on U-shaped clamp, stone is clamped and enters into storage shell, hinge shell is in open state, lead to the risk of stone still falling from storage shell, the foregoing scheme can be used in the scene of intrahepatic bile duct stone taking, also can be used to solve the problem of stone taking shell opening and closing.
[0023] In the embodiment, after the stone taking clamp 106 clamps stone and enters into the stone taking shell 101, the anti-drop block 102 is automatically reset under the elastic force of the spring 105, and the bottom end of the stone taking shell 101 is blocked, so as to avoid stone from falling off from the stone taking shell 101.
[0024] The fixed frame 103 is fixedly installed outside the stone taking shell 101, the guide rod 104 is slidingly installed on the fixed frame 103, the anti-falling block 102 is slidingly installed on the stone taking shell 101 and penetrates the stone taking shell 101, the anti-falling block 102 is further fixedly connected with the guide rod 104, the spring 105 is sleeved on the guide rod 104 and located between the fixed frame 103 and the anti-falling block 102, the stone taking clamp 106 is slidingly installed in the stone taking shell 101 through the sliding assembly, the pressing assembly is installed on the stone taking clamp 106, the number of the anti-falling block 102, the fixed frame 103, the guide rod 104 and the spring 105 is six groups, and they are annularly distributed along the axis of the stone taking shell 101, the fixed frame 103 is a lateral U-shaped structure, the anti-falling block 102 is a wedge-shaped structure, the upper end of which is a slope, the guide rod 104 is a cylindrical structure, the axis of the spring 105 coincides with that of the guide rod 104, the stone taking clamp 106 is an inverted U-shaped structure, the stone taking clamp 106 is made of elastic metal material, the sliding assembly facilitates the sliding of the stone taking clamp 106 in the stone taking shell 101, and the pressing assembly facilitates the pressing of the stone taking clamp 106, in use, the stone taking clamp 106 is made to slide downward through the sliding assembly, and the anti-falling block 102 is pushed outward, when the stone taking clamp 106 approaches a calculus, the calculus is clamped and taken through the pressing of the stone taking clamp 106 by the pressing assembly, and the stone taking clamp 106 is made to slide upward into the inside of the stone taking shell 101, at this time, the anti-falling block 102 is reset under the action of the spring 105 and blocks the bottom end of the stone taking shell 101, so that the calculus is prevented from falling from the bottom end of the stone taking shell 101.
[0025] Secondly, the mounting frame 107 is fixedly installed in the stone taking shell 101, the sliding groove 109 is arranged on the mounting frame 107, the sliding frame 108 is slidingly installed on the mounting frame 107 and penetrates the sliding groove 109, and the sliding frame 108 is fixedly connected with the stone taking clamp 106, the mounting frame 107 is an inverted L-shaped structure, and the sliding frame 108 is an I-shaped structure, through the sliding cooperation of the mounting frame 107 and the sliding frame 108, the sliding of the stone taking clamp 106 in the stone taking shell 101 is facilitated.
[0026] Again, the stone extraction shell 101 is provided with a vertical groove 112 on the side away from the mounting frame 107, the pressing rod 110 penetrates through the vertical groove 112 and is fixedly connected with the stone extraction clamp 106; the pressing block 111 is fixedly installed on the pressing rod 110 and is located outside the stone extraction shell 101, the pressing rod 110 is in a cylindrical structure, and the pressing block 111 is in a block structure, so that the stone extraction clamp 106 is pressed by pressing the pressing rod 110 and the pressing block 111.
[0027] Finally, the clamp block 113 is fixedly installed on the stone extraction clamp 106; the protrusion 114 is arranged on the clamp block 113, the number of the clamp blocks 113 is two groups, and the two groups are arranged at the two ends of the bottom of the stone extraction clamp 106, the clamp blocks 113 on the two sides are distributed in an inverted eight-character shape, and a plurality of groups of the protrusions 114 are arranged on the opposite sides of the clamp blocks 113, so that the stones are more easily clamped by the arrangement of the clamp blocks 113, and the friction between the stones and the clamp blocks 113 is increased by the arrangement of the protrusions 114.
[0028] In the embodiment, when in use, one hand holds the stone extraction shell 101, the thumb is placed on the pressing block 111, and the pressing block 111 is pushed downward, so that the pressing rod 110 drives the stone extraction clamp 106 to move downward, when the stone extraction clamp 106 is pressed on the anti-disengagement block 102, the anti-disengagement block 102 moves outward under the pressing of the stone extraction clamp 106, so that the spring 105 is compressed, when the stone extraction clamp 106 penetrates out of the bottom end of the stone extraction shell 101, the stone extraction clamp 106 is close to the position of the stones of the patient, the pressing block 111 is pressed, so that the pressing rod 110 presses the stone extraction clamp 106, so that the stone extraction clamp 106 clamps the stones, and then the stone extraction clamp 106 is pushed upward, when the bottom end of the stone extraction clamp 106 moves to above the anti-disengagement block 102, the anti-disengagement block 102 is reset under the elastic force of the spring 105, the stone extraction shell 101 is blocked, and the stone extraction is completed, so that the anti-disengagement block 102 is automatically reset after the stone extraction clamp 106 completes the stone extraction, and the bottom end of the stone extraction shell 101 is blocked, so that the stones are prevented from falling off from the bottom end of the stone extraction shell 101.
[0029] The second embodiment of the application is:
[0030] Please refer to Figure 4 and Figure 5 , wherein Figure 4 is a whole structure schematic view of a stone extractor according to the second embodiment of the application, Figure 5It is the connection diagram of the stone taking shell and the end column of the second embodiment of the utility model, on the basis of the first embodiment, the stone taking device of the utility model still includes the opening and closing device, the opening and closing device includes the end column 201 and the anti-skid strip 202.
[0031] In the embodiment, the end column 201 is screwed in and out, facilitating the opening and closing of the stone taking shell 101.
[0032] The end column 201 is screwed with the stone taking shell 101; the anti-skid strip 202 is fixedly installed on the end column 201, the upper end diameter of the end column 201 is greater than the lower end diameter, the lower end of the end column 201 is provided with a thread, the number of the anti-skid strip 202 is multiple groups, and the anti-skid strip 202 is annularly arranged on the upper end of the end column 201; the end column 201 is screwed out of the stone taking shell 101, so that the upper end of the stone taking shell 101 is opened, and then the internal clamped calculus is poured out, so that the end column 201 is screwed in and out, facilitating the opening and closing of the stone taking shell 101, and facilitating the discharge of the internal calculus.
[0033] The above disclosed is only one or more preferred embodiments of the application, which cannot limit the scope of the application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope of the application.
Claims
1. A stone extractor, comprising a stone extraction shell and an opening and closing device, characterized in that, further comprising a stone extraction device; the stone extraction device comprises an anti-dropping block, a fixing frame, a guide rod, a spring, a stone extraction clamp, a sliding assembly and a pressing assembly, the fixing frame is fixedly installed on the outside of the stone extraction shell, the guide rod is slidingly installed on the fixing frame, the anti-dropping block is slidingly installed on the stone extraction shell and penetrates through the stone extraction shell, the anti-dropping block is further fixedly connected with the guide rod, the spring is sleeved on the guide rod and located between the fixing frame and the anti-dropping block, the stone extraction clamp is slidingly installed in the stone extraction shell through the sliding assembly, and the pressing assembly is installed on the stone extraction clamp.
2. The stone extractor according to claim 1, characterized in that, the sliding assembly comprises a mounting frame and a sliding frame, the mounting frame is fixedly installed in the stone extraction shell; the mounting frame is provided with a sliding groove, the sliding frame is slidingly installed on the mounting frame and penetrates through the sliding groove, and the sliding frame is fixedly connected with the stone extraction clamp.
3. The stone extractor according to claim 2, characterized in that, the pressing assembly comprises a pressing rod and a pressing block, the side of the stone extraction shell away from the mounting frame is provided with a vertical groove, the pressing rod penetrates through the vertical groove and is fixedly connected with the stone extraction clamp, and the pressing block is fixedly installed on the pressing rod and located on the outside of the stone extraction shell.
4. The stone extractor according to claim 1, characterized in that, the stone extraction device further comprises a clamp block and a protrusion, the clamp block is fixedly installed on the stone extraction clamp, and the protrusion is arranged on the clamp block.
5. The stone extractor according to claim 1, characterized in that, the opening and closing device comprises an end column and an anti-skid strip, the end column is threadedly connected with the stone extraction shell, and the anti-skid strip is fixedly installed on the end column.