Calculus removing mesh basket

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a calculus removing mesh basket which is characterized in that a triangular groove is matched with a limiting rod, so that the limiting rod can enable a sliding block to be in a one-way locking state in the calculus removing process of a doctor, a mesh basket head is ensured to be in a tightened state, and the doctor is prevented from continuously applying force to the upper side of a control handle; the operation difficulty of a doctor is reduced, the design of the finger ring is more convenient for the doctor to hold and operate, hand fatigue is reduced, the operation comfort is improved, the design of the deflector rod enables the operation to be simple when the limiting rod is popped out and retracted, and meanwhile, the rubber rings on the upper side and the lower side of the deflector rod increase friction force, so that the operation is more convenient. According to the calculus removing mesh basket, the shifting rod is prevented from sliding accidentally in the operation process, the stability of the whole device is improved, according to the design of the calculus removing mesh basket, through the ingenious mechanical structure and component layout, accurate control and locking of the mesh basket head are achieved, meanwhile, operation convenience and user experience are improved, and therefore the success rate of an operation and the satisfaction degree of a patient are improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a stone retrieval basket. Background Technology

[0002] Disposable stone retrieval baskets are instruments used to remove stones from the bile duct or foreign bodies from the upper and lower digestive tracts. They are easy to operate and have been applied in various endoscopic surgeries. The use of disposable stone retrieval baskets is crucial to the success of treatment. They are characterized by their wide application, high technical content, and broad market.

[0003] In traditional stone retrieval baskets, the surgeon guides the basket to the location of the stone using an endoscope during the procedure. Then, by manipulating a handle, the basket is kept taut and contracted to capture the stone. However, this method has significant drawbacks. First, to maintain the basket's tautness, the surgeon needs to continuously apply force to the handle, which must be pulled taut until the stone is removed. This can loosen, potentially causing stone displacement, increasing the surgeon's difficulty, prolonging the procedure, and increasing patient discomfort and surgical risks. Utility Model Content

[0004] The purpose of this invention is to provide a stone retrieval basket to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A stone-collecting basket includes an outer tube, a basket head is installed on the right side of the outer tube, an inner core is slidably installed on the inner side of the outer tube, and a control handle is installed on the left side of the inner core;

[0007] The control handle includes a control handle body. A straight groove runs vertically through the center of the control handle body. A slider is slidably mounted on the outer side of the control handle body. The left side of the inner core is connected to the slider. Two first finger rings are fixed on the front and rear sides of the slider. A second finger ring is fixed on the left side of the control handle body. Several linearly distributed triangular grooves are formed on the rear side of the straight groove. A limiting rod matching the triangular grooves is hinged to the center of the slider. A lever is rotatably mounted on the upper side of the slider. An arc-shaped groove matching the lever is formed in the center of the slider. A top rod fixedly connected to the lever is slidably mounted inside the arc-shaped groove. A return spring is connected to the front side of the limiting rod. The other end of the return spring is fixedly connected to the top rod. A pressure block fixed to the slider is mounted on the upper side of the lever. Rubber rings that abut against the pressure block and the slider are respectively mounted on the upper and lower sides of the lever.

[0008] There are two levers, which are symmetrically distributed vertically.

[0009] The slider has threaded holes vertically opened on both the top and bottom sides, and the pressure block has a screw threadedly connected to the threaded holes on the side near the slider.

[0010] The lever is fixed with an arc-shaped protrusion on the side near the slider, and each arc-shaped groove has two arc-shaped grooves distributed on the left and right and matching the arc-shaped protrusion.

[0011] The outer left side of the outer tube is fitted with a protective tube that is fixedly connected to the control handle body.

[0012] The straight groove has scale markings on both the front and back sides.

[0013] The triangular groove and limiting rod work together to ensure the slider is locked in one direction during stone retrieval, keeping the basket head taut. This avoids the need for continuous force from the doctor on the control handle, reducing the difficulty of operation. The ring design makes it easier for the doctor to grip and operate, reducing hand fatigue and improving comfort. The lever design simplifies the operation of the limiting rod's extension and retraction. Rubber rings on both sides of the lever increase friction, preventing accidental slippage and improving the overall stability of the device. This stone retrieval basket design, through its ingenious mechanical structure and component layout, achieves precise control and locking of the basket head, improving operational convenience and user experience, thereby increasing surgical success rate and patient satisfaction. Two levers are used, symmetrically positioned vertically. The distributed design allows doctors to operate with one or two hands simultaneously, adapting to different doctors' usage habits. This not only improves operational efficiency but also increases operational flexibility. The pressure block and slider are connected by threads, allowing for fine-tuning of the tension between the pressure block and the lever by rotating the pressure block. This facilitates adjustment of the lever's rotational force and also allows for easy tightening to prevent loosening. When the lever is moved left or right, the arc-shaped protrusions can respectively engage with the corresponding arc-shaped grooves on the left and right sides, helping to ensure the lever is stably fixed in a specific position and further improving the lever's stability. The protective tube increases the connection strength between the outer tube and the control handle body, further improving the overall stability of the device. The straight groove has scale markings on both the front and rear sides, which helps doctors accurately judge the position of the slider during operation, thereby achieving precise control of the basket head. Attached Figure Description

[0014] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0017] Figure 3 for Figure 1 A magnified structural diagram at point B in the middle.

[0018] Figure 4 This is a schematic diagram of the control handle in this utility model.

[0019] Figure 5 for Figure 4 A magnified structural diagram at point C.

[0020] Figure 6 This is a cross-sectional structural diagram of the slider in this utility model.

[0021] Figure 7 for Figure 6 A magnified structural diagram at point D.

[0022] 1. Outer tube, 102. Basket head, 103. Inner core, 104. Control handle body, 105. Straight groove, 106. Slider, 107. First finger ring, 108. Second finger ring, 109. Triangular groove, 110. Limiting rod, 111. Toggle rod, 112. Arc groove, 113. Top rod, 114. Return spring, 115. Pressure block, 116. Rubber ring, 3. Screw, 4. Arc-shaped protrusion, 402. Arc-shaped groove, 5. Protective tube, 6. Scale marking. Detailed Implementation

[0023] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-7 As shown, a stone-collecting basket includes an outer tube 1, a basket head 102 installed on the right side of the outer tube 1, an inner core 103 slidably installed on the inner side of the outer tube 1, and a control handle installed on the left side of the inner core 103.

[0025] The control handle includes a control handle body 104. A through-slot 105 is formed in the center of the control handle body 104. A slider 106 is slidably mounted on the outer side of the control handle body 104. The left side of the inner core 103 is connected to the slider 106. Two first finger rings 107 are fixed on the front and rear sides of the slider 106. A second finger ring 108 is fixed on the left side of the control handle body 104. Several linearly distributed triangular grooves 109 are formed on the rear side of the through-slot 105. A limiting rod 11, matching the triangular grooves 109, is hinged to the center of the slider 106. 0. A lever 111 is rotatably mounted on the upper side of the slider 106. An arc-shaped groove 112 matching the lever 111 is opened in the middle of the slider 106. A top rod 113 fixedly connected to the lever 111 is slidably mounted inside the arc-shaped groove 112. A return spring 114 is connected to the front side of the limit rod 110. The other end of the return spring 114 is fixedly connected to the top rod 113. A pressure block 115 fixed to the slider 106 is mounted on the upper side of the lever 111. Rubber rings 116 that abut against the pressure block 115 and abut against the slider 106 are respectively mounted on the upper and lower sides of the lever 111.

[0026] The stone basket mainly consists of an outer tube 1 and a basket head 102. The outer tube 1 serves as the main structure, while the basket head 102 is installed on its right side for capturing and removing stones. By operating the ring on the upper side of the control handle body 104, the slider 106 can be moved, which in turn drives the inner core 103 to move, thereby controlling the opening and closing of the basket head 102. When the lever 111 is at the leftmost position, the return spring 114 allows the rear side of the limit rod 110 to abut against the triangular groove 109. The limit rod 110 and the triangular groove 109 together form a ratchet-like structure. At this time, the slider 106 can be locked to the left in one direction, which facilitates the fixation of the basket head 102 on the right side. When the slider 106 needs to move to the right, simply move the lever 111 to rotate it to the right. At this time, the return spring 114 will drive the limit rod 110 away from the triangular groove 109, and the slider 106 can slide freely left and right.

[0027] The triangular groove 109 and the limiting rod 110 work together to ensure that the slider 106 is locked in one direction during stone retrieval, keeping the basket head 102 taut. This avoids the need for the doctor to continuously apply force to the upper side of the control handle, reducing the difficulty of operation. The ring design makes it easier for the doctor to hold and operate, reducing hand fatigue and improving operating comfort. The design of the lever 111 simplifies the operation of controlling the pop-up and retraction of the limiting rod 110. At the same time, the rubber rings 116 on the upper and lower sides of the lever 111 increase friction, preventing the lever 111 from accidentally sliding during operation and improving the stability of the entire device. This stone retrieval basket design, through its ingenious mechanical structure and component layout, achieves precise control and locking of the basket head 102, while improving the convenience of operation and user experience, thereby increasing the success rate of surgery and patient satisfaction.

[0028] There are two levers 111, which are symmetrically distributed vertically.

[0029] The design of having two levers 111 symmetrically distributed vertically allows doctors to operate them simultaneously with one or both hands, making it suitable for different doctors' usage habits. This not only improves operational efficiency but also increases operational flexibility.

[0030] The slider 106 has threaded holes vertically opened on both the upper and lower sides, and the pressure block 115 has a screw 3 that is threadedly connected to the threaded hole on the side near the slider 106.

[0031] The pressure block 115 and the slider 106 are connected by a thread. The tension between the pressure block 115 and the lever 111 can be finely adjusted by rotating the pressure block 115, which facilitates the adjustment of the rotation force of the lever 111 and also makes it easy to tighten it to prevent it from loosening.

[0032] A circular arc-shaped protrusion 4 is fixed on the side of the lever 111 near the slider 106. Each arc-shaped groove 112 has two circular arc-shaped grooves 402 distributed on the left and right and matching the circular arc-shaped protrusion 4.

[0033] When the lever 111 is moved left and right, the arc-shaped protrusions 4 can be respectively locked inside the corresponding arc-shaped grooves 402 on the left and right sides, which helps to ensure that the lever 111 can be stably fixed in a specific position, and further improves the stability of the lever 111.

[0034] The outer left side of the outer tube 1 is fitted with a protective tube 5 that is fixedly connected to the control handle body 104.

[0035] The straight groove 105 has scale markings 6 on both the front and rear sides.

[0036] The protective tube 5 increases the connection strength between the outer tube 1 and the control handle body 104, further improving the overall stability of the entire device; the straight groove 105 is equipped with scale markings 6 on both the front and rear sides, which helps doctors accurately judge the position of the slider 106 during operation, thereby achieving precise control of the basket head 102.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A stone-collecting basket, comprising an outer tube, a basket head mounted on the right side of the outer tube, and an inner core slidably mounted on the inner side of the outer tube, characterized in that: A control handle is installed on the left side of the inner core; The control handle includes a control handle body. A straight groove runs vertically through the center of the control handle body. A slider is slidably mounted on the outer side of the control handle body. The left side of the inner core is connected to the slider. Two first finger rings are fixed on the front and rear sides of the slider. A second finger ring is fixed on the left side of the control handle body. Several linearly distributed triangular grooves are formed on the rear side of the straight groove. A limiting rod matching the triangular grooves is hinged to the center of the slider. A lever is rotatably mounted on the upper side of the slider. An arc-shaped groove matching the lever is formed in the center of the slider. A top rod fixedly connected to the lever is slidably mounted inside the arc-shaped groove. A return spring is connected to the front side of the limiting rod. The other end of the return spring is fixedly connected to the top rod. A pressure block fixed to the slider is mounted on the upper side of the lever. Rubber rings that abut against the pressure block and the slider are respectively mounted on the upper and lower sides of the lever.

2. The stone-collecting basket according to claim 1, characterized in that: There are two levers, which are symmetrically distributed vertically.

3. The stone-collecting basket according to claim 2, characterized in that: The slider has threaded holes vertically opened on both the top and bottom sides, and the pressure block has a screw threadedly connected to the threaded holes on the side near the slider.

4. The stone-collecting basket according to claim 3, characterized in that: The lever is fixed with an arc-shaped protrusion on the side near the slider, and each arc-shaped groove has two arc-shaped grooves distributed on the left and right and matching the arc-shaped protrusion.

5. A stone-collecting basket according to claim 4, characterized in that: The outer left side of the outer tube is fitted with a protective tube that is fixedly connected to the control handle body.

6. A stone-collecting basket according to claim 5, characterized in that: The straight groove has scale markings on both the front and back sides.

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