Driving control handle and calculus removing mesh basket

Abstract

The utility model relates to the technical field of surgical medical instruments, in particular to a drive control handle and calculus removal mesh basket, which comprises an outer tube, an inner tube, a connector and a knob, the outer tube is provided with a limiting groove, the inner tube comprises a fixed part and a sliding part, the sliding part is connected with the connector, the sliding part is provided with a first limiting piece, and the near end of the sliding part is provided with a sliding cavity. A mounting channel is formed in the fixing part, the fixing part comprises a sliding table located at the far end, and a sliding stroke exists between the sliding table and the sliding cavity in the axial direction. The sliding part serving as a part of the inner tube is arranged in the outer tube and is protected by the outer tube, the exposed area of the reciprocating motion gap is reduced, then the clamping risk to the palm and the probability that foreign objects fall into the reciprocating motion gap are reduced or avoided, and the working stability and convenience of the driving and controlling handle and the calculus removing net basket are improved; and meanwhile, the outer pipe and the fixing part can provide a fixed holding supporting part, so that the holding operation comfort and convenience of the operator are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical medical instruments, in particular to a driving control handle and a stone removal net basket. Background Art

[0002] Urinary stones are common diseases of the urinary system and can be found in any part of the kidney, bladder, ureter and urethra, among which kidney and ureteral stones are the most common. The stone removal basket is one of the commonly used medical devices for treating ureteral stones, including a handle and a basket. The operator can drive the basket to grab the stones by controlling the handle. However, the applicant found in the process of realizing the present invention that the existing stone removal basket has poor control convenience when driving the control handle. Utility Model Content

[0003] The purpose of this application is to provide a driving handle and a stone-taking basket to solve the above-mentioned technical problems existing in the prior art, which mainly include the following two aspects:

[0004] The first aspect of the present application provides a driving control handle for a stone removal basket, comprising an outer tube, an inner tube, a connecting head and a knob, a limiting groove is arranged on the circumferential wall of the outer tube in a first radial direction, the inner tube comprises a fixed part and a sliding part, the distal end of the sliding part is connected to the proximal end of the connecting head, a first limiting member located in the limiting groove is arranged on the circumferential wall of the sliding part, the first limiting member at least partially protrudes from the limiting groove, a sliding cavity is arranged at the proximal end of the sliding part, an installation channel is arranged in the fixed part, the installation channel is used for passing a traction wire, the fixed part comprises a slide located at the distal end, the installation channel passes through the slide, a sliding stroke is provided between the slide and the sliding cavity along the axial direction, the proximal end of the fixed part is connected to the knob, the knob is used to fix the traction wire passed through the inner tube, and the distal end of the connecting head is used to connect with the sheath tube.

[0005] Furthermore, the sliding cavity is arranged on the proximal end surface of the sliding part, and the sliding cavity penetrates the sliding part along a second radial direction, and the second radial direction is opposite to the first radial direction.

[0006] Furthermore, the inner wall cross-section of the sliding cavity includes a first arc segment and two first straight line segments symmetrically arranged on both sides of the first arc segment, and the outer wall cross-section of the sliding platform includes a second arc segment and two second straight line segments symmetrically arranged on both sides of the second arc segment, and the second arc segment is arranged corresponding to the first arc segment.

[0007] Furthermore, the radius of the second arc segment is smaller than the radius of the first arc segment.

[0008] Furthermore, a convex strip is axially arranged on the inner wall of the sliding cavity corresponding to the first arc segment, and the convex strip is used for abutting and cooperating with the second arc segment.

[0009] Furthermore, the slide table is provided with a first positioning block located in a first radial direction, and a first positioning groove matching the first positioning block is provided on the inner wall of the sliding cavity corresponding to the first arc segment.

[0010] Furthermore, the slide is provided with a second positioning block located in a second radial direction, and the inner wall of the outer tube is provided with a second positioning groove matching the second positioning block.

[0011] Furthermore, the knob is also used to cooperate with the connector and the fixing part to achieve position limiting of the outer tube;

[0012] And / or, a second limiting member is disposed at the proximal end of the fixing portion in the first radial direction, and the second limiting member is located in the limiting groove;

[0013] And / or, a gripping portion is provided on the peripheral wall of the outer tube.

[0014] Furthermore, a reinforced inner tube is provided in the installation channel, and the reinforced inner tube is used to be sleeved on the proximal end of the traction wire;

[0015] And / or, a protective sleeve is provided in the installation channel, and the protective sleeve is used to be sleeved on the proximal end of the traction wire to reduce the movable space of the traction wire in the installation channel.

[0016] A second aspect of the present application provides a stone removal basket, comprising a basket and the above-mentioned drive control handle, wherein the basket is connected to the distal end of the traction wire, the proximal end of the traction wire passes through a connector and an installation channel, and the proximal end of the traction wire is connected to the proximal end of the fixing part.

[0017] Compared with the prior art, this application has at least the following technical effects:

[0018] The sliding part of the present application is arranged inside the outer tube as a part of the inner tube and is protected by the outer tube, thereby reducing the exposed area of ​​the reciprocating gap, thereby reducing or avoiding the risk of pinching the palm and the probability of foreign objects falling into the reciprocating gap, and improving the working stability and convenience of the driving handle and the stone removing basket; at the same time, the outer tube and the fixed part can provide a fixed gripping support part, further improving the comfort and convenience of the operator's gripping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the stone-taking net basket (the net basket is contracted) of the utility model;

[0021] Figure 2 It is an exploded view of the stone-taking net basket of the utility model (the net basket is collapsed);

[0022] Figure 3 This is a schematic diagram of the structure of the interior of the driving control handle of the utility model (the basket is extended);

[0023] Figure 4 It is an exploded view of the interior of the driving control handle of the utility model (the basket is extended);

[0024] Figure 5 It is a structural schematic diagram of the outer tube of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the fixing part of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the sliding part of the utility model;

[0027] Figure 8 It is a schematic diagram of the connection structure of the outer tube and the inner tube of the utility model;

[0028] Fig. 9 yes Figure 8 Middle AA section view;

[0029] In the figure,

[0030] 10. Outer tube; 110. Limiting groove; 120. Second positioning groove; 210. Fixing part; 211. Slide; 212. First positioning block; 213. Second positioning block; 214. Second limiting member; 215. Installation channel; 220. Sliding part; 221. Sliding cavity; 222. First limiting member; 223. First positioning groove; 30. Connector; 40. Knob; 50. Sheath; 60. Net basket; 70. Traction wire; 80. Strengthening inner tube; 90. Protective sleeve. DETAILED DESCRIPTION

[0031] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] In addition, in the present invention, "proximal end" and "distal end" refer to the far and near positions of the structure relative to human operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; for the same component, "proximal end" and "distal end" are the relative positional relationship of the component, not absolute; therefore, it should be understood from the perspective of realizing the principles of the present invention, and should not deviate from the essence of the present invention.

[0036] Urinary calculi are common diseases of the urinary system and can be found in any part of the kidney, bladder, ureter and urethra, among which kidney and ureteral calculi are common. The stone-removing basket is one of the commonly used medical devices for treating ureteral calculi, including a handle and a basket, and the operator can drive the basket to grab the calculus by manipulating the handle. For the existing stone-removing basket, such as a stone-removing basket device disclosed in Chinese Patent Publication No. CN219814233U, including a handle and a Y-shaped connector, when the basket is reciprocated, the gap between the handle and the Y-shaped connector will change with the reciprocating drive of the basket. On the one hand, since the general operator uses one-handed operation, the changing gap between the handle and the Y-shaped connector may clamp the palm, affecting the operator's control of the stone-removing basket device. On the other hand, when a foreign object falls into the gap between the handle and the Y-shaped connector, the convenience of the reciprocating drive basket will be destroyed, resulting in poor control convenience of the stone-removing basket device. In order to solve the problem of poor control convenience of the stone removing basket device, the present application provides a drive control handle and a stone removing basket for improving the operation convenience of the stone removing basket device, and the specific structure is shown in the following embodiments.

[0037] Embodiment 1:

[0038] The present application embodiment provides a driving control handle for taking a stone basket, such as Figure 1 to Figure 4 As shown, it includes an outer tube 10, an inner tube, a connector 30 and a knob 40; Figure 5 As shown, a limiting groove 110 is provided on the peripheral wall of the outer tube 10 in the first radial direction, and the inner tube includes a fixing portion 210 and a sliding portion 220, and the distal end of the sliding portion 220 is connected to the proximal end of the connector 30; Figure 7 As shown, a first stopper 222 located in the stopper groove 110 is disposed on the peripheral wall of the sliding portion 220, and the first stopper 222 at least partially protrudes from the stopper groove 110. A sliding cavity 221 is disposed at the proximal end of the sliding portion 220; Figure 6 As shown, an installation channel 215 is provided in the fixing portion 210, and the installation channel 215 is used to pass the traction wire 70. The fixing portion 210 includes a slide 211 located at the distal end, and the installation channel 215 passes through the slide 211. There is an axial sliding stroke between the slide 211 and the sliding cavity 221. The proximal end of the fixing portion 210 is connected to the knob 40, and the knob 40 is used to fix the traction wire 70 passed through the inner tube. The distal end of the connector 30 is used to connect with the sheath tube 50.

[0039] During use, the first stopper 222 is pushed distally to drive the sliding portion 220 to move away from the fixing portion 210. The sliding portion 220 drives the sheath 50 to move distally through the connector 30, and the traction wire 70 is relatively fixed to the outer tube 10. Correspondingly, the traction wire 70 moves proximally relative to the sheath 50, allowing the basket 60 to retract into the sheath. Figure 1 and Figure 2 As shown; if the first stopper 222 is pushed toward the proximal end, the sliding portion 220 is driven to move toward the direction close to the fixed portion 210, and the sliding portion 220 drives the sheath 50 to move toward the proximal end through the connector 30, and the traction wire 70 is relatively fixed to the outer tube 10, and correspondingly, the traction wire 70 moves toward the distal end relative to the sheath 50, so that the basket 60 extends out of the sheath 50, as shown in FIG. Figure 3 and Figure 4 As shown, the basket 60 after extending the sheath 50 can be used to collect stones, and the first limiter 222 is reciprocatingly driven to allow the basket 60 to repeatedly collect stones so as to stably collect the stones; in the process of reciprocatingly driving the basket 60, since the fixed part 210 and the outer tube 10 are fixed relative to the traction wire, and the sliding part 220 slides relative to the traction wire 70, and the sliding part 220 is arranged in the outer tube 10 as a part of the inner tube, the sliding part 220 and the gap generated during the reciprocating driving process are protected by the outer tube 10, thereby reducing the exposed area of ​​the reciprocating activity gap, thereby reducing or avoiding the risk of clamping the palm and and the probability of foreign objects falling into the reciprocating gap, thereby improving the working stability and convenience of the drive control handle and the stone removing basket; on the other hand, for the operator, when holding the drive control handle, the fist is facing the distal end after holding it, and the thumb is placed on the first limit member 222 along the first radial protruding limit groove 110 part. Correspondingly, when the first limit member 222 is pushed back and forth, the first limit member 222 will not generate friction with the palm (except for the thumb part), and the outer tube 10 and the fixed part 210 can provide a fixed holding support part for the little finger, ring finger, middle finger, index finger and palm, further improving the comfort and convenience of the operator's holding operation.

[0040] It should be noted that the sliding connection between the sliding part 220 and the slide table 211 is a prior art, which may be specifically a clearance fit, a track fit, a roller fit, etc., and is not specifically limited here.

[0041] To facilitate quick assembly of the control handle, Figure 7 As shown, the sliding cavity 221 can be arranged on the proximal end face of the sliding part 220, and the sliding cavity 221 penetrates the sliding part 220 along the second radial direction, and the second radial direction is opposite to the first radial direction; when installing, the slide 211 of the fixed part 210 can be directly installed into the sliding cavity 221 of the sliding part 220 from the second radial direction to form an inner tube, and then the inner tube is installed into the outer tube 10 from the port of the outer tube 10, and the outer tube 10 is used to limit the inner tube to prevent the inner tube from falling off radially from the outer tube 10. At the same time, based on the cooperation between the first limiting member 222 and the inner wall of the limiting groove 110, the circumferential rotation stroke of the sliding part 220 relative to the outer tube 10 can be limited, and the sliding stroke between the slide 211 and the sliding cavity 221 can be cooperated, so as to fix the relative positions between the fixed part 210, the sliding part 220 and the outer tube 10, and improve the structural stability of the device.

[0042] In order to improve the connection and matching stability between the fixed part 210 and the sliding part 220, as shown in FIG. Figure 8 and Fig. 9 As shown, the inner wall cross-section of the sliding cavity 221 can be set to include a first arc segment and two first straight line segments symmetrically arranged on both sides of the first arc segment, and the outer wall cross-section of the slide 211 includes a second arc segment and two second straight line segments symmetrically arranged on both sides of the second arc segment, and the second arc segment is arranged correspondingly to the first arc segment; by arranging the first straight line segment and the second straight line segment correspondingly, and the first arc segment and the second arc segment correspondingly, mutual limiting constraints between the sliding cavity 221 and the slide 211 are achieved, ensuring that the sliding part 220 can stably slide along the axial direction of the slide 211 under the action of thrust, and avoiding collision and abnormal noise between the sliding part 220 and the fixed part 210 during use due to loose structure.

[0043] In order to reduce the sliding resistance of the sliding part 220, the radius of the second arc segment can be set smaller than the radius of the first arc segment. After the fixing part 210 and the sliding part 220 are installed, when the corresponding curvatures of the second arc segment and the first arc segment are the same, and the radius of the second arc segment is smaller than the radius of the first arc segment, when the sliding part 220 is pushed, the first arc segment of the inner wall of the sliding cavity 221 is forced to contact the sliding first arc segment part, and in this state, a certain gap can be maintained between the first straight line segment and the corresponding second straight line segment, thereby effectively reducing the contact area between the sliding part 220 and the slide table 211. Correspondingly, the friction resistance of the sliding part 220 to the slide table 211 during the reciprocating movement is correspondingly reduced, thereby effectively improving the sliding convenience and the control comfort of the drive control handle.

[0044] In order to reduce the sliding resistance of the sliding part 220, a convex strip can be axially arranged on the inner wall of the sliding cavity 221 corresponding to the first arc segment, and the convex strip is used to abut and cooperate with the second arc segment. When the sliding part 220 is pushed, the convex strip on the inner wall of the sliding cavity 221 is forced to abut and cooperate with the second arc segment on the slide 211, thereby reducing the contact area between the sliding part 220 and the slide 211. Correspondingly, the friction resistance of the sliding part 220 to the slide 211 during the reciprocating movement is reduced accordingly, thereby effectively improving the sliding convenience and the control comfort of the drive control handle.

[0045] To improve the connection stability between the sliding part 220 and the slide table 211, as Figure 2 , Figure 4 and Figure 6As shown, a first positioning block 212 located in the first radial direction can be provided on the slide 211, and a first positioning groove 223 matching the first positioning block 212 is provided on the inner wall of the sliding cavity 221 corresponding to the first arc segment. The cooperation between the first positioning block 212 and the first positioning groove 223 can be used to limit the axial sliding stroke between the sliding part 220 and the fixed part 210, and can also constrain the sliding part 220 to rotate circumferentially relative to the fixed part. When the driving control handle is assembled, when the fixed part 210 and the sliding part 220 are installed in the outer tube 10 and the sliding part 220 is connected to the connector 30, the cooperation between the first positioning block 212 and the first positioning groove 223 can prevent the fixed part 210 from sliding axially from the outer tube 10, thereby improving the convenience of installation and connection of the fixed part 210 and the knob 40.

[0046] Preferably, the sliding stroke of the sliding portion 220 on the slide table 211 is limited by the sliding stroke of the first positioning block 212 in the first positioning groove 223 .

[0047] In order to improve the convenience of disassembly and assembly of the drive control handle, Figure 2 , Figure 4 and Figure 6 As shown, a second positioning block 213 located in the second radial direction can be provided on the slide 211, and a second positioning groove 120 matching the second positioning block 213 is provided on the inner wall of the outer tube 10. The second positioning block 213 and the second positioning groove 120 cooperate to limit the sliding stroke of the constrained fixing part 210 relative to the outer tube 10. After the knob 40 is removed, the second positioning block 213 and the second positioning groove 120 are constrained by the cooperation, and the axial sliding stroke of the fixing part 210 in the outer tube 10 can be effectively constrained, so that the relative positions of the outer tube 10, the inner tube and the traction wire 70 are kept fixed, so as to maintain and adjust the position of the traction wire 70 and other functional components.

[0048] In order to improve the structural stability of the driving handle, a knob 40 may be provided to cooperate with the connector 30 and the fixing portion 210 to achieve position limiting of the outer tube 10 .

[0049] In order to prevent the fixing part 210 from circumferentially rotating relative to the outer tube 10, a second limiter 214 may be provided at the proximal end of the fixing part 210 in the first radial direction, and the second limiter 214 is located in the limiter groove 110. The second limiter 214 cooperates with the inner wall of the limiter groove 110 to constrain the circumferential rotation of the fixing part 210 relative to the outer tube 10, thereby improving the structural stability between the fixing part 210 and the outer tube 10. In some embodiments, the outer wall surface of the second limiter 214 and the circumferential wall of the outer tube 10 may be arranged on the same circumferential surface, thereby improving the comfort of holding.

[0050] In order to improve the convenience of operation, a gripping portion may be provided on the peripheral wall of the outer tube 10 .

[0051] In order to improve the mechanical strength of the traction wire 70 corresponding to the driving handle, Figure 4 As shown, a reinforced inner tube 80 can be provided in the installation channel 215, and the reinforced inner tube 80 is used to be sleeved on the proximal end of the traction wire 70. The reinforced inner tube 80 is sleeved on the traction wire 70 to improve the mechanical strength of the traction wire 70 and prevent the corresponding part of the traction wire 70 of the control handle from bending and being damaged during the reciprocating drive process, thereby improving the structural stability and safety of use.

[0052] To further prevent the corresponding part of the traction wire of the driving handle from bending and being damaged during the reciprocating drive process, Figure 2 and Figure 4 As shown, a protective sleeve 90 can be provided in the installation channel 215, and the protective sleeve 90 is used to be sleeved on the proximal end of the traction wire 70. Preferably, the reinforced inner tube 80 is located between the protective sleeves 90 to reduce the movable space of the traction wire 70 in the installation channel 215, thereby reducing the risk of the traction wire 70 being bent and damaged during the reciprocating drive process.

[0053] Embodiment 2:

[0054] The present application embodiment provides a stone-taking basket, such as Figure 1 to Figure 4 As shown, it includes a basket 60 and the drive control handle in Example 1, the traction wire 70 passes through the sheath 50 and is connected to the basket 60, the proximal end of the traction wire 70 passes through the connector 30 and the mounting channel 215, and the proximal end of the traction wire 70 is connected to the proximal end of the fixing part 210 through the knob 40.

[0055] When it is necessary to use the stone removal basket for stone treatment, the operator can push the first limiter 222 toward the distal end to drive the sliding part 220 to move away from the fixing part 210. The sliding part 220 drives the sheath 50 to move toward the distal end through the connector 30, and the traction wire 70 is relatively fixed to the outer tube 10. Correspondingly, the traction wire 70 moves toward the proximal end relative to the sheath 50, allowing the basket 60 to retract into the sheath. The part 220 moves in the direction close to the fixed part 210, and the sliding part 220 drives the sheath tube 50 to move toward the proximal end through the connecting head 30, while the traction wire 70 is relatively fixed to the outer tube 10. Correspondingly, the traction wire 70 moves toward the distal end relative to the sheath tube 50, allowing the net basket 60 to extend out of the sheath tube 50. After extending out of the sheath tube 50, the net basket 60 can collect the stones. The first limit member 222 is reciprocatingly driven, so that the net basket 60 can repeatedly collect the stones so as to stably collect the stones.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A control handle for a stone basket, characterized in that: The invention comprises an outer tube (10), an inner tube, a connector (30) and a knob (40), wherein a limiting groove (110) is arranged on a peripheral wall of the outer tube (10) in a first radial direction, the inner tube comprises a fixing portion (210) and a sliding portion (220), the distal end of the sliding portion (220) is connected to the proximal end of the connector (30), a first limiting member (222) located in the limiting groove (110) is arranged on the peripheral wall of the sliding portion (220), the first limiting member (222) at least partially protrudes from the limiting groove (110), a sliding cavity (221) is arranged at the proximal end of the sliding portion (220), and the The fixing part (210) is provided with an installation channel (215), and the installation channel (215) is used to pass the traction wire (70). The fixing part (210) includes a slide (211) located at the distal end, and the installation channel (215) passes through the slide (211). There is a sliding stroke between the slide (211) and the sliding cavity (221) along the axial direction. The proximal end of the fixing part (210) is connected to the knob (40), and the knob (40) is used to fix the traction wire (70) passed through the inner tube. The distal end of the connector (30) is used to connect to the sheath tube (50).

2. The control handle according to claim 1, characterized in that: The sliding cavity (221) is arranged on the proximal end surface of the sliding portion (220), and the sliding cavity (221) penetrates the sliding portion (220) along a second radial direction, and the second radial direction is opposite to the first radial direction.

3. The control handle according to claim 2, characterized in that: The inner wall cross section of the sliding cavity (221) comprises a first arc segment and two first straight line segments symmetrically arranged on both sides of the first arc segment, and the outer wall cross section of the sliding platform (211) comprises a second arc segment and two second straight line segments symmetrically arranged on both sides of the second arc segment, and the second arc segment is arranged corresponding to the first arc segment.

4. The control handle according to claim 3, characterized in that: The radius of the second arc segment is smaller than the radius of the first arc segment.

5. The driving handle according to claim 4, characterized in that: A convex strip is axially arranged on the inner wall of the sliding cavity (221) corresponding to the first arc segment, and the convex strip is used to abut and cooperate with the second arc segment.

6. The driving handle according to claim 4, characterized in that: The slide table (211) is provided with a first positioning block (212) located in a first radial direction, and the inner wall of the sliding cavity (221) corresponding to the first arc segment is provided with a first positioning groove (223) matching the first positioning block (212).

7. The driving handle according to any one of claims 2 to 6, characterized in that: The slide table (211) is provided with a second positioning block (213) located in a second radial direction, and the inner wall of the outer tube (10) is provided with a second positioning groove (120) matching the second positioning block (213).

8. The driving handle according to claim 7, characterized in that: The knob (40) is also used to cooperate with the connector (30) and the fixing portion (210) to achieve position limiting of the outer tube (10); And / or, a second limiting member (214) is provided at the proximal end of the fixing portion (210) in the first radial direction, and the second limiting member (214) is located in the limiting groove (110); And / or, a gripping portion is provided on the peripheral wall of the outer tube (10).

9. The driving handle according to claim 7, characterized in that: A reinforced inner tube (80) is arranged in the installation channel (215), and the reinforced inner tube (80) is used to be sleeved on the proximal end of the traction wire (70); And / or, a protective sleeve (90) is provided in the installation channel (215), and the protective sleeve (90) is used to be sleeved on the proximal end of the traction wire (70) to reduce the movable space of the traction wire (70) in the installation channel (215).

10. A stone-removing basket, characterized in that: It comprises a mesh basket (60) and a driving handle as claimed in any one of claims 1 to 9, wherein the mesh basket (60) is connected to the distal end of a traction wire (70), the proximal end of the traction wire (70) passes through a connector (30) and a mounting channel (215), and the proximal end of the traction wire (70) is connected to the proximal end of a fixing portion (210).

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