Kidney stone removing basket

By introducing limiting and protective components into the stone retrieval basket, the problem of small stones falling off during retrieval is solved, work efficiency is improved, and convenient protection is achieved after use.

CN224387499UActive Publication Date: 2026-06-23SHENZHEN TIANKE MEDICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN TIANKE MEDICAL TECH CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing stone retrieval baskets are prone to falling off when catching small stones, and the ends are not convenient for storage and protection after use, resulting in low work efficiency.

Method used

A limiting component and a protective component were designed. The limiting component uses a slider to drive the basket to limit and fix the basket when removing stones, preventing them from falling out. The protective component uses a magnetic structure to protect the basket after use.

Benefits of technology

It achieves stable fixation during stone removal, prevents detachment, improves efficiency, and facilitates the protection and storage of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses kidney stone extraction net basket belongs to medical instrument technical field, and the lower fixedly connected with the finger hole ring has the net basket handle, the surface slidingly connected with the sliding block has the net basket handle, and the both sides symmetry of sliding block fixedly connected with handle ring, the upper portion of net basket handle is provided with sheath pipe, and the upper portion of sheath pipe is provided with net basket, the upper portion of sliding block one side is provided with limit component, and the upper portion of net basket is covered with protection component, the utility model sets up limit component, and when being convenient through the sliding block drive net basket basket and take the stone, can limit the fixed sliding block, thereby prevent falling, and through reset component, make sliding block can automatic reset, improve the practicality of use, the utility model sets up protection component, and after use, can carry out the protection to the end, and the positive pole magnetic stripe and negative pole magnetic stripe are convenient for installing the positioning of protection cover, improve the practicality of use.
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Description

Technical Field

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

[0002] Stone retrieval baskets are widely used in the treatment of stones in various surgical fields such as urology and biliary tract surgery. They are usually made of multiple basket wires that are interlaced and bent into a basket shape. When removing stones, the stones are placed in the basket, and then the basket is contracted to wrap the stones and remove them. Stone retrieval baskets are required for the treatment of kidney stones.

[0003] Existing stone retrieval baskets require that when retrieving smaller stones, the stone must be placed inside the basket and then the basket retracted to confine it. However, the basket cannot be locked after the stone is placed inside, and manually squeezing it to keep the stone inside can easily cause it to fall out. This requires repeated placement and retrieval, which is time-consuming, labor-intensive, and reduces work efficiency. Furthermore, since the stone retrieval basket may be reusable, it is not convenient to store and protect the ends after use. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a kidney stone retrieval basket. This basket features the ability to limit and fix the slider to prevent it from falling off during stone retrieval via a sliding block, and the ability to protect the end after use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a kidney stone removal basket, including a basket handle, a finger hole ring fixedly connected to the lower part of the basket handle, a slider slidably connected to the surface of the basket handle, handle rings symmetrically and fixedly connected to both sides of the slider, a sheath tube provided above the basket handle, a basket frame provided above the sheath tube, a limit component provided above one side of the slider, and a protective component covering the top of the basket frame.

[0006] Preferably, the limiting component includes a limiting seat, a pull rod, a limiting block, a pull block, a limiting spring, and a reset component. The limiting seat is fixedly connected to the upper part of one side of the slider, the pull rod is slidably connected to the middle of the limiting seat, one end of the pull rod is fixedly connected to the limiting block, the limiting block and the basket handle are tightly inserted, the other end of the pull rod is fixedly connected to the pull block, the two ends of one side of the pull block are symmetrically and fixedly connected to the limiting spring, the other end of the limiting spring is fixedly connected to the limiting seat, and a reset component is provided on the front side of the slider.

[0007] Preferably, the reset assembly includes a support, a reset slide rod, a reset sliding block, a reset spring, and a stop block. The support is fixedly connected to the front side of the basket handle, the reset slide rod is fixedly connected to the top of the support, the reset sliding block is slidably connected to the surface of the reset slide rod, one side of the reset sliding block is fixedly connected to the slider, the reset spring is sleeved on the surface of the reset slide rod, and the stop block is fixedly connected to the top of the reset slide rod.

[0008] Preferably, one side of the basket handle is provided with limiting holes that cooperate with the limiting block, and one end of the limiting block is provided with a guide slide.

[0009] Preferably, the protective assembly includes a protective cover, a positioning block, a positive magnetic strip, a positioning rod, a rubber stopper, a positioning seat, and a negative magnetic strip. The protective cover covers the top of the basket, and a rubber stopper is tightly inserted into one end of the lower part of the protective cover. One side of the rubber stopper is attached to the basket handle. A positioning block is fixedly connected to the lower part of one side of the protective cover. A positioning rod is fixedly connected to the middle of the lower part of the positioning block. A positive magnetic strip is fixedly connected to the lower surface of the positioning block. A positioning seat is fixedly connected to the upper part of one side of the basket handle, and a negative magnetic strip is fixedly connected to the upper surface of the positioning seat.

[0010] Preferably, the positioning seat has a positioning hole in the middle for cooperating with the positioning rod, and the positioning rod and the positioning seat are tightly inserted.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting a limiting component, this utility model achieves the effect of limiting and fixing the slider when the net basket driven by the slider is used to remove the stone, thereby preventing it from falling off. In addition, the reset component enables the slider to automatically reset, which improves the practicality of use.

[0013] 2. By setting up protective components, this utility model achieves the effect of protecting the end after use. The positive and negative magnetic strips facilitate the installation and positioning of the protective cover, improving its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the limiting component of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the reset component of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model.

[0018] In the diagram: 1. Basketball handle; 2. Finger hole ring; 3. Slider; 4. Handle ring; 5. Sheath; 6. Basketball basket; 7. Limiting assembly; 71. Limiting seat; 72. Pull rod; 73. Limiting block; 74. Pull block; 75. Limiting spring; 76. Reset assembly; 761. Support; 762. Reset slide rod; 763. Reset sliding block; 764. Reset spring; 765. Stop block; 8. Protective assembly; 81. Protective cover; 82. Positioning block; 83. Positive magnetic strip; 84. Positioning rod; 85. Rubber plug cap; 86. Positioning seat; 87. Negative magnetic strip. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figure 1-4 The present invention provides the following technical solution: a kidney stone removal basket, including a basket handle 1, a finger hole ring 2 fixedly connected to the lower part of the basket handle 1, a slider 3 slidably connected to the surface of the basket handle 1, a handle ring 4 symmetrically and fixedly connected to both sides of the slider 3, a sheath tube 5 provided above the basket handle 1, a basket 6 provided above the sheath tube 5, a limit component 7 provided above one side of the slider 3, and a protective component 8 covering the top of the basket 6.

[0022] Specifically, the limiting component 7 includes a limiting seat 71, a pull rod 72, a limiting block 73, a pull block 74, a limiting spring 75, and a reset component 76. The limiting seat 71 is fixedly connected to the upper side of one side of the slider 3. The pull rod 72 is slidably connected to the middle of the limiting seat 71. One end of the pull rod 72 is fixedly connected to the limiting block 73. The limiting block 73 is tightly inserted into the basket handle 1. The other end of the pull rod 72 is fixedly connected to the pull block 74. The two ends of one side of the pull block 74 are symmetrically and fixedly connected to the limiting spring 75. The other end of the limiting spring 75 is fixedly connected to the limiting seat 71. The reset component 76 is provided on the front side of the slider 3.

[0023] By adopting the above technical solution, when the slider 3 is pulled, the guide slide on one side of the limiting block 73 will drive the limiting block 73 to move to one side, causing the pull rod 72 to move to one side. Thus, the pull rod 72 drives the pull block 74 to move to one side to stretch the limiting spring 75 until the slider 3 moves to the net basket 6 to remove the stones. Then the limiting spring 75 returns to its original position, causing the limiting block 73 to be inserted into the limiting hole, thus limiting the distance between the slider 3 and the net basket handle 1.

[0024] Specifically, the reset assembly 76 includes a support 761, a reset slide rod 762, a reset sliding block 763, a reset spring 764, and a stop block 765. The support 761 is fixedly connected to the front side of the basket handle 1. The reset slide rod 762 is fixedly connected to the top of the support 761. The reset sliding block 763 is slidably connected to the surface of the reset slide rod 762. One side of the reset sliding block 763 is fixedly connected to the slider 3. The reset spring 764 is sleeved on the surface of the reset slide rod 762. The stop block 765 is fixedly connected to the top of the reset slide rod 762.

[0025] By adopting the above technical solution, the limit block 73 and the limit hole are separated, the reset spring 764 is reset, and the reset sliding block 763 is driven to slide on the reset sliding rod 762, so that the slider 3 is reset.

[0026] Specifically, the basket handle 1 has evenly spaced limiting holes on one side that cooperate with the limiting block 73, and the limiting block 73 has a guide slide at one end.

[0027] By adopting the above technical solution, the limiting hole and the limiting block 73 are tightly engaged, fixing the basket handle 1 and the slider 3. The guide slide facilitates the automatic movement of the limiting block 73 to one side when the slider 3 is pulled.

[0028] In this embodiment, when the slider 3 is pulled, the guide slide on one side of the limiting block 73 will cause the limiting block 73 to move to one side, causing the pull rod 72 to move to one side. The pull rod 72 will then cause the pull block 74 to move to one side, stretching the limiting spring 75. After the slider 3 moves to the basket 6 to remove the stones, the limiting spring 75 will reset, causing the limiting block 73 to insert into the limiting hole, limiting the distance between the slider 3 and the basket handle 1. When the limiting block 73 separates from the limiting hole, the reset spring 764 will reset, causing the reset sliding block 763 to slide on the reset sliding rod 762, thus resetting the slider 3. This allows the device to be used to limit and fix the slider 3 when the basket 6 is driven by the slider 3 to remove the stones, thereby preventing it from falling off.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that, specifically, the protective component 8 includes a protective cover 81, a positioning block 82, a positive magnetic strip 83, a positioning rod 84, a rubber plug 85, a positioning seat 86, and a negative magnetic strip 87. The protective cover 81 is provided on the top of the basket 6. A rubber plug 85 is tightly inserted into one end of the lower part of the protective cover 81. One side of the rubber plug 85 is attached to the basket handle 1. A positioning block 82 is fixedly connected to the lower part of one side of the protective cover 81. A positioning rod 84 is fixedly connected to the middle of the lower part of the positioning block 82. A positive magnetic strip 83 is fixedly connected to the lower surface of the positioning block 82. A positioning seat 86 is fixedly connected to the upper part of one side of the basket handle 1. A negative magnetic strip 87 is fixedly connected to the upper surface of the positioning seat 86.

[0031] By adopting the above technical solution, after the device is used and cleaned and disinfected, the protective cover 81 is put on the basket 6 and tightly connected by the positioning seat 86 and the positioning rod 84. Then, the positive magnetic strip 83 and the negative magnetic strip 87 attract each other to position and fix the protective cover 81. Then, the rubber plug 85 is inserted into the opening at the bottom of the protective cover 81, thereby completing the installation of the protective cover 81 and protecting the basket 6.

[0032] Specifically, the positioning seat 86 has a positioning hole in the middle that matches the positioning rod 84, and the positioning rod 84 and the positioning seat 86 are tightly inserted.

[0033] By adopting the above technical solution, the positioning hole can easily cooperate with the positioning rod 84 to position the protective cover 81. The positioning rod 84 and the positioning seat 86 are tightly inserted, which can maintain the stability of the installation.

[0034] In this embodiment, after the device is used and cleaning and disinfection are completed, the protective cover 81 is placed on the basket 6 and tightly connected by the positioning seat 86 and the positioning rod 84. Then, the positive magnetic strip 83 and the negative magnetic strip 87 attract each other to position and fix the protective cover 81. Then, the rubber plug 85 is inserted into the opening at the bottom of the protective cover 81, thereby completing the installation of the protective cover 81 and protecting the basket 6. This makes it easy to protect the basket 6 after the device is used.

[0035] The structure and working principle of the net basket handle 1, finger hole ring 2, slider 3, handle ring 4, sheath tube 5, and net basket 6 in this utility model have been disclosed in a stone retrieval net basket disclosed in Chinese patent application number 202020858315.0. Its working principle is that when in use, the slider 3 slides on the net basket handle 1 to pull the net basket 6 to retrieve the stones.

[0036] The working principle and usage process of this utility model: This utility model is used for the treatment of kidney stones to remove the stones. In use, the net basket handle is grasped through the finger hole ring 2 and handle ring 4. Then, the slider 3 slides on the net basket handle 1, pulling the net basket 6 to remove the stone. During removal, the slider 3 is limited and fixed by the limiting component 7. After use, the net basket 6 is protected by the protective component 8. When the limiting component 7 is in use, pulling the slider 3 causes the limiting block 73 to move to one side under the action of the guide slide on one side of the limiting block 73. This causes the pull rod 72 to move to one side, which in turn causes the pull block 74 to move to one side, stretching the limiting spring 75 until the slider 3 moves to the net basket 6 and removes the stone. After this, the limiting spring 75 returns to its original position, causing the limiting block 73 to insert into the limiting hole, thus limiting the distance between the slider 3 and the net basket handle 1. When the device is in use, the limit block 73 separates from the limit hole, the reset spring 764 resets, and drives the reset sliding block 763 to slide on the reset sliding rod 762, so that the slider 3 resets. This allows the device to limit and fix the slider 3 when the net basket 6 is driven by the slider 3 to remove stones, thus preventing it from falling off. When the protective component 8 is in use, after the device is used and cleaned and disinfected, the protective cover 81 is put on the net basket 6 and tightly inserted through the positioning seat 86 and the positioning rod 84. Then the positive magnetic strip 83 and the negative magnetic strip 87 attract each other to position and fix the protective cover 81. Then the rubber plug 85 is inserted into the opening at the bottom of the protective cover 81 to complete the installation of the protective cover 81, thereby protecting the net basket 6. This makes it easy to protect the net basket 6 after the device is used.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kidney stone removal basket, comprising a basket handle (1), a finger hole ring (2) fixedly connected to the lower part of the basket handle (1), a slider (3) slidably connected to the surface of the basket handle (1), handle rings (4) symmetrically and fixedly connected to both sides of the slider (3), a sheath (5) provided above the basket handle (1), and a basket (6) provided above the sheath (5), characterized in that: A limit component (7) is provided above one side of the slider (3), and a protective component (8) is provided above the basket (6).

2. The kidney stone retrieval basket according to claim 1, characterized in that: The limiting component (7) includes a limiting seat (71), a pull rod (72), a limiting block (73), a pull block (74), a limiting spring (75), and a reset component (76). The limiting seat (71) is fixedly connected to the upper side of one side of the slider (3). The pull rod (72) is slidably connected to the middle of the limiting seat (71). One end of the pull rod (72) is fixedly connected to the limiting block (73). The limiting block (73) and the basket handle (1) are tightly inserted. The other end of the pull rod (72) is fixedly connected to the pull block (74). The two ends of one side of the pull block (74) are symmetrically connected to the limiting spring (75). The other end of the limiting spring (75) is fixedly connected to the limiting seat (71). The reset component (76) is provided on the front side of the slider (3).

3. The kidney stone retrieval basket according to claim 2, characterized in that: The reset assembly (76) includes a support (761), a reset slide rod (762), a reset sliding block (763), a reset spring (764), and a stop block (765). The support (761) is fixedly connected to the front side of the basket handle (1). The reset slide rod (762) is fixedly connected to the top of the support (761). The reset sliding block (763) is slidably connected to the surface of the reset slide rod (762). One side of the reset sliding block (763) is fixedly connected to the slider (3). The reset spring (764) is sleeved on the surface of the reset slide rod (762). The stop block (765) is fixedly connected to the top of the reset slide rod (762).

4. The kidney stone retrieval basket according to claim 2, characterized in that: The basket handle (1) has a set of limiting holes evenly distributed on one side to cooperate with the limiting block (73), and a guide slide is provided at one end of the limiting block (73).

5. The kidney stone retrieval basket according to claim 1, characterized in that: The protective assembly (8) includes a protective cover (81), a positioning block (82), a positive magnetic strip (83), a positioning rod (84), a rubber plug (85), a positioning seat (86), and a negative magnetic strip (87). The protective cover (81) covers the top of the basket (6). A rubber plug (85) is tightly inserted into one end of the lower part of the protective cover (81). One side of the rubber plug (85) is attached to the handle (1) of the basket. A positioning block (82) is fixedly connected to the lower part of one side of the protective cover (81). A positioning rod (84) is fixedly connected to the middle of the lower part of the positioning block (82). A positive magnetic strip (83) is fixedly connected to the lower surface of the positioning block (82). A positioning seat (86) is fixedly connected to the upper part of one side of the basket handle (1). A negative magnetic strip (87) is fixedly connected to the upper surface of the positioning seat (86).

6. The kidney stone retrieval basket according to claim 5, characterized in that: The positioning seat (86) has a positioning hole in the middle for cooperating with the positioning rod (84), and the positioning rod (84) and the positioning seat (86) are tightly inserted.