Calculus removing mesh basket with multiple scales

Abstract

The utility model relates to the field of medical instruments, and provides a calculus removal mesh basket with multiple scales, which comprises a mesh basket head, an insertion part and a handheld operation part which are connected in sequence, a movable device is arranged on the handheld operation part, and the movable device is used for controlling the opening and closing state of the mesh basket head. The insertion part is provided with a first scale for determining the insertion depth of the calculus removal net basket into a target position, and the handheld operation part is provided with a second scale for calculating the calculus removal size. The scales with different calculation functions are arranged on the insertion part and the handheld operation part, so that a doctor can conveniently and clearly know the insertion length of the calculus removal net basket during use based on the first scales on the insertion part, and the doctor can be helped to judge the initial calculus size based on the second scales on the handheld operation part; and the success rate of calculus removal of an operator each time is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a stone retrieval basket with multiple graduations. Background Technology

[0002] Stone retrieval baskets are used in stone removal surgery to extract stone fragments after laser fragmentation. Clinically, they are used in conjunction with an endoscope. The operator inserts the basket through the endoscope's working channel to the stone site for removal. When other instruments need to enter the endoscope's working channel, the basket must be withdrawn. When another stone needs to be removed, the basket is reinserted into the endoscope. Since stone removal surgery often requires multiple procedures, the repeated insertion and removal of the basket significantly reduces surgical efficiency.

[0003] In fact, if the operator can accurately or relatively accurately judge the depth of the stone retrieval basket insertion, and thus keep the stone retrieval basket inside the endoscope connector without affecting the entry of other instruments into the working channel, then there is no need to repeatedly insert and remove the stone retrieval basket, which can significantly reduce the cumbersome operation. Summary of the Invention

[0004] One of the objectives of this invention is to provide a multi-scale stone-collecting basket that can solve at least one of the technical problems mentioned in the background art.

[0005] To achieve the above objectives, according to an embodiment of this application, the present invention provides the following technical solution: a graduated stone-collecting basket, comprising a basket head, an insertion part, and a handheld operating part connected in sequence, wherein the handheld operating part is provided with a movable device for controlling the opening and closing state of the basket head, the insertion part is provided with a first graduation for determining the depth of insertion of the stone-collecting basket into the target position, and the handheld operating part is provided with a second graduation for calculating the size of the stone to be collected.

[0006] Preferably, the insertion part includes a braided tube and a traction wire connected to the basket head, and the movable device includes a nut, a handle and a slider connected to the traction wire. The traction wire passes through the braided tube and is fixed to the slider. One end of the braided tube is fixed to the nut. The first scale is set on the braided tube.

[0007] Preferably, the second scale is located on the handheld operating part and is partially or completely covered by the movable device, and the second scale is partially or completely exposed as the movable device slides.

[0008] Preferably, the handheld operating unit is provided with a rotating component for controlling the opening and closing of the basket head.

[0009] Preferably, the first and second scales are marked with different colors.

[0010] Preferably, both the first and second scales include threshold indication scales.

[0011] Preferably, the basket head is made of nickel-titanium wire.

[0012] Preferably, the shape of the basket head includes diamond, elliptical, ellipsoidal, or spiral.

[0013] Compared with the prior art, the technical solution provided in this application can achieve at least the following technical effects:

[0014] This invention features scales with different calculation functions on the insertion part and the handheld operating part. The first scale on the insertion part allows the doctor to clearly know the insertion length of the stone retrieval basket and determine its position within the patient's body, ensuring the basket head remains within the endoscope connector without obstructing other instruments from entering the working channel. The second scale on the handheld operating part helps the doctor determine the initial stone size, increasing the success rate of stone retrieval each time, reducing unnecessary and ineffective stone retrieval actions, and shortening the overall surgical time.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 A simplified structural diagram of a multi-scale stone-collecting basket provided in one embodiment of this application;

[0018] Figure 2 The diagram shown is a cross-sectional view of a multi-scale stone-collecting basket according to a preferred embodiment of this application;

[0019] Figure 3 The figure shown is a cross-sectional view of the movable device 3 in a multi-scale stone-collecting basket according to a preferred embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the second scale of a multi-scale stone-collecting basket according to a preferred embodiment of this application;

[0021] The same or similar reference numerals in the accompanying drawings represent the same or similar structures.

[0022] Reference numerals: 1-Basket head; 2-Insert part; 21-First scale; 22-Braided tube; 23-Traction wire; 3-Handheld operating part; 31-Modular device; 32-Second scale; 311-Nut; 312-Handle; 313-Slider; 314-Groove; 33-Rotating component. Detailed Implementation

[0023] 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.

[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please refer to Figure 1 , Figure 1 This is a simplified structural diagram of a multi-scale stone-collecting basket provided as an embodiment of this application. According to... Figure 1 The multi-scale stone-collecting basket of this application includes: a basket head 1, an insertion part 2, and a handheld operation part 3 connected in sequence. The handheld operation part 3 is provided with a movable device 31, which is used to control the opening and closing state of the basket head 1. The insertion part 2 is provided with a first scale 21 for determining the depth of the stone-collecting basket inserted into the target position. The handheld operation part 3 is provided with a second scale 32 for calculating the size of the stone to be collected.

[0027] The first graduation 21 is used to measure the depth when the basket head 1 enters the bile duct. The first graduation 21 is preferably no more than 10 cm, because the common bile duct is typically only 4-8 cm long; if the total graduation of the first graduation 21 exceeds the length of the common bile duct, it becomes unnecessary. Similarly, the second graduation 32 can be set to within 10 cm or other suitable specifications to facilitate the removal of stones through the basket head by the surgical operator.

[0028] To enable operators to quickly and easily understand the functions of the different scales on the stone retrieval basket of this application, the first scale 21 and the second scale 32 are preferably marked with different colors. The first scale 21 and / or the second scale 32 can be set on the corresponding components by printing, engraving, or other methods. Preferably, both the first scale 21 and the second scale 32 include a threshold indication scale, which is highlighted with a special color and bolding. This allows the doctor to be alerted when the slider or indicator in the handheld operating unit 3 moves to the threshold indication scale, indicating that the size of the stone fragment is not suitable for direct removal and requires further crushing before it can be retrieved through the stone retrieval basket.

[0029] The basket head 1 is preferably made of nickel-titanium wire, and the shape of the basket head 1 is preferably diamond-shaped, elliptical, ellipsoidal or spiral.

[0030] The insertion part 2 can be made of a flexible tube suitable for the prior art of this application, and the length can be determined according to actual needs, such as 110cm or other suitable lengths.

[0031] For a clearer description of the technical details of the insertion section 2 in this application, please refer to... Figure 2 , Figure 2 The diagram shown is a cross-sectional view of a multi-scale stone-collecting basket according to a preferred embodiment of this application. According to... Figure 2 The insertion part 2 of this application is provided with a first graduation 21 for determining the insertion depth of the stone retrieval basket at the target position, and may include a braided tube 22 and a traction wire 23 connected to the basket head 1. The braided tube 22 is a commonly used tubing material in the medical device field, typically comprising a multi-layered structure. The innermost layer is generally polytetrafluoroethylene (PTFE), the middle layer is generally stainless steel mesh, and the outermost layer is generally nylon elastomer (PBAX). The traction wire 23 can be made of steel wire commonly used in the medical device field or other suitable materials, preferably made of shape memory wire. Compared with the prior art, the graduation on the braided tube 22 in this application has the following advantages: by providing the first graduation 21 on the braided tube 22, the doctor can clearly know the insertion length of the basket during operation, facilitating the doctor's judgment of the basket's position, and allowing the basket to remain within the endoscope connector without obstructing other instruments from entering the working forceps channel.

[0032] For a clearer description of the technical details of the active device 3 in this application, please refer to [reference needed]. Figure 3 , Figure 3 The diagram shown is a cross-sectional view of the movable device 3 in a multi-scale stone-collecting basket according to a preferred embodiment of this application. According to... Figure 3 The movable device 31 of this application may include a nut 311, a handle 312, a slider 313 connected to a traction wire 23, and a groove 314 for sliding the slider 313. The traction wire 23 passes through a braided tube 22 and is fixed to the slider 313. One end of the braided tube 22 is fixed to the nut 311. A first scale 21 is provided on the braided tube 22. The nut 311 can be fixed to one end of the slider 313 by snapping or other means, and the handle 312 can be fixed in the movable device 3 by a suitable means such as snapping or gluing. The structure of the slider 313 and the groove 314 can be implemented using any sliding tool in the prior art suitable for the field of medical devices.

[0033] For the operator, when operating the stone retrieval basket of this application, the basket head 1 is inserted into the patient's body by operating the hand-held operating part 3. When it is necessary to open the basket head 1, the end of the basket head 1 is opened by operating the hand-held operating part 3, thereby loading the stone fragments in the patient's body into the basket head 1. Then, the basket head 1 is tightened by operating the hand-held operating part 3, thereby removing the stone fragments.

[0034] More specifically, the operator slides the slider 313 along the groove 314, thereby operating the traction wire 23 connected to the slider 313 to link the basket head 1, causing the basket head 1 to extend from the braided tube 22 and gradually open. The greater the distance the slider 313 slides forward, the larger the opening diameter of the basket head 1; conversely, when the slider 313 returns, the basket head 1 gradually closes.

[0035] Preferably, the handheld operating unit 3 may also be provided with a rotating component 33 for controlling the opening and closing of the basket head 1. The rotating component 33 may be implemented using existing technology, such as one or more knobs. These knobs are provided in the handheld operating unit 3 and connected to the insertion part 2 and the basket head 1, thereby further facilitating the control of the retraction and opening of the basket head 1.

[0036] For a further preferred embodiment, please refer to Figure 4 , Figure 4 This is a schematic diagram of the second scale 32 of a multi-scale stone-collecting basket according to a preferred embodiment of this application. Figure 4The second scale 32 is disposed in the handheld operating part 3 and is partially or completely covered by the movable device 31. The second scale 32 is partially or completely exposed as the movable device 31 slides. That is, as the handheld operating part 3 slides up and down, the second scale 32 can be exposed at different lengths, thereby allowing the operator to more accurately and conveniently control the opening and closing of the basket head.

[0037] Compared with the prior art, this application has the following obvious advantages: Based on the first scale 21 on the insertion part 2, it is convenient for doctors to clearly know the insertion length of the stone retrieval basket and thus determine the insertion position of the basket in the patient's body. The basket head 1 can be kept in the endoscope connector without obstructing other instruments from entering the working forceps channel. Based on the second scale 32 on the handheld operation part 3, it can help doctors judge the initial size of the stone and whether it can be successfully removed in one go, avoiding repeated ineffective stone removal.

[0038] It should be noted that the technical solutions described above are only preferred embodiments of this utility model. All equivalent alternatives or obvious modifications of the implementation methods given in the specification that can be reasonably predicted by those skilled in the art to achieve the purpose of this utility model are also included within the protection scope of this utility model.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0040] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithotomy basket configured for multiple scaling, comprising: The device comprises a basket head, an insertion part and a hand-held operating part connected in sequence, the hand-held operating part is provided with a moving device for controlling the opening and closing state of the basket head, the insertion part is provided with a first scale for determining the target position depth of the stone basket, and the hand-held operating part is provided with a second scale for calculating the size of the stone.

2. The stone basket of claim 1, wherein, The insertion part comprises a braided tube and a traction wire connected with the basket head, the moving device comprises a nut, a handle and a sliding block connected with the traction wire, the traction wire passes through the braided tube and is fixed in the sliding block, and one end of the braided tube is fixed with the nut.

3. The stone basket of claim 1, wherein, The second scale is arranged on the hand-held operating part and is partially or entirely covered by the moving device, and the second scale is partially or entirely exposed with the sliding of the moving device.

4. The stone basket of claim 1, wherein, The hand-held operating part is further provided with a rotating part for controlling the opening and closing of the basket head.

5. The stone basket of claim 1, wherein, The first scale and the second scale are marked with different colors.

6. The stone basket of claim 1, wherein, The first scale and the second scale both comprise threshold value prompt scales.

7. The stone basket of claim 1, wherein, The basket head is made of a nickel-titanium wire.

8. The stone basket of claim 1, wherein, The shape of the basket head comprises a diamond shape, an oval shape, an ellipsoidal shape or a spiral shape.

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