Endoscope calculus removing mesh basket

Abstract

The utility model discloses an endoscope calculus removing net basket which comprises a handle, a sliding block, a fixing column, an inhaul cable, a boosting pipe and a locking bolt. Wherein a sliding groove extending in the front-back direction is formed in the handle, a first finger ring is arranged at the rear end of the handle, the handle is sleeved with the sliding block in a sliding mode in the front-back direction, a second finger ring is arranged at the upper end of the sliding block, and a third finger ring is arranged at the lower end of the sliding block. The fixing column is connected to the sliding block and at least partially extends into the sliding groove, a locking hole is formed in the fixing column, the rear end of the inhaul cable is sleeved with the boosting pipe, and the inhaul cable and the boosting pipe extend into the sliding groove together and are inserted into the locking hole. The locking bolt is in threaded connection with the interior of the fixing column, and the locking bolt is used for bending the inhaul cable and the boosting pipe and locking the inhaul cable and the boosting pipe on the fixing column. The pull rope can be driven to move back and forth through single-hand operation, and the single-hand operation is more convenient to use.

Description

Technical Field

[0001] The utility model relates to an endoscopic stone removal net basket. Background Art

[0002] At present, the stone removal basket is a medical device for capturing and removing stones in the human body under endoscopy. The stone removal basket includes a basket, a cable, an outer tube and other components. The basket is connected to the front end of the cable, and the outer tube is sleeved on the outside of the cable. By driving the cable to move forward and backward, the basket can be tightened or opened, and the stone can be removed. However, some existing stone removal baskets require two hands to drive the cable to move forward and backward. For example, a spherical stone removal basket is disclosed in a Chinese patent with publication number CN202355445U, which requires one hand to hold the front handle and the other hand to push and pull the rear handle assembly forward and backward to drive the cable to move forward and backward. Both hands are required to participate in the operation, which is inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an endoscopic stone removal basket, which can be operated with one hand to drive the cable to move back and forth, and the one-hand operation is more convenient to use.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an endoscopic stone extraction basket, which includes a handle, a slider, a fixing column, a cable, a booster tube and a locking bolt;

[0005] The handle is provided with a slide groove extending in the front-to-back direction, and the rear end of the handle is provided with a first finger ring;

[0006] The slider is slidably sleeved on the handle along the front-back direction, the upper end of the slider is provided with a second finger ring, and the lower end of the slider is provided with a third finger ring;

[0007] The fixing column is connected to the sliding block and at least partially extends into the sliding groove, and a locking hole is provided in the fixing column;

[0008] The booster tube is sleeved on the rear end of the cable, and the cable and the booster tube are extended into the slide groove and inserted into the locking hole together;

[0009] The locking bolt is threadedly connected in the fixing column, and is used to be screwed to abut against the cable and the booster tube in the locking hole so as to bend the cable and the booster tube and lock them on the fixing column.

[0010] Furthermore, the sliding block is provided with a mounting hole aligned with the sliding slot, and the fixing column is fixedly installed in the mounting hole and extends into the sliding slot.

[0011] Furthermore, at least one anti-rotation plane portion is provided on the inner wall of the mounting hole, and a matching plane portion corresponding to the anti-rotation plane portion one by one and abutting against the corresponding anti-rotation plane portion is provided on the outer wall of the fixing column.

[0012] Furthermore, the slider is also provided with a countersunk hole located above the mounting hole and connected to the mounting hole, the lower end of the fixing column extends into the slide groove, and the upper end of the fixing column and the upper end of the locking bolt are both located in the countersunk hole.

[0013] Furthermore, a threaded hole intersecting with the locking hole is provided in the fixing column, and the locking bolt is threadedly connected in the threaded hole and is used to bend the cable and the booster tube inserted into the locking hole.

[0014] Furthermore, the lower end of the locking bolt is a conical structure.

[0015] Furthermore, the endoscopic stone removal basket also includes a water injection component and a sealing component;

[0016] The water injection piece is connected to the front end of the handle, and has a main channel and a sealing channel at the rear end of the main channel. The pull cable and the booster tube extend into the slide groove and are inserted into the locking hole after passing through the main channel and the sealing channel.

[0017] The water injection member is also provided with a liquid injection channel connected to the main channel;

[0018] The sealing member is installed in the sealing channel and sleeved on the outer side of the booster tube to form a seal between the booster tube and the water injection member;

[0019] A step portion facing rearward is provided between the main channel and the sealing channel, the front end portion of the sealing member abuts against the step portion, and the rear end portion of the sealing member abuts against the front end portion of the handle.

[0020] Furthermore, a connecting hole is provided in the water injection member, the main channel, the sealing channel and the connecting hole are arranged in sequence and connected in sequence, and the front end of the handle is inserted into the connecting hole.

[0021] Furthermore, a slot recessed radially inward is provided on the outer peripheral wall of the front end portion of the handle, and at least one boss for being inserted into the slot is provided on the inner wall of the connecting hole.

[0022] Furthermore, the endoscopic stone removal basket also includes a basket, a sheath tube and an outer tube;

[0023] The rear end of the sheath pipe is connected to the front end of the water injection piece;

[0024] The rear end of the outer tube is connected to the sheath tube;

[0025] The cable also passes through the sheath tube and the outer tube;

[0026] The net basket is connected to the front end of the cable. The cable is used to drive the net basket to retract into the outer tube when moving backward, and to drive the net basket to extend out of the outer tube when moving forward.

[0027] After adopting the above technical solution, the thumb is inserted into the first finger ring, and the index finger and the middle finger are respectively inserted into the second finger ring and the third finger ring, so that the slider can be driven to move forward and backward with one hand. During the movement of the slider forward and backward, the fixed column can be driven to move, and then the cable and the booster tube can be driven to move forward and backward. Therefore, in this embodiment, the cable can be driven to move forward and backward by one-handed operation, which is more convenient to use. Among them, during the movement forward and backward, the cable can not only drive the net basket to retract into the outer tube to tighten the net basket, but also drive the net basket to extend from the outer tube to open the net basket. By tightening and bending the cable and the booster tube with the locking bolt, the cable can be firmly locked on the fixed column, which improves the reliability of the connection between the cable and the fixed column and makes the connection more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the endoscopic stone removal basket of the utility model;

[0029] Figure 2 It is a cross-sectional view of the endoscopic stone removal basket of the utility model;

[0030] Figure 3 for Figure 2 Partial detail of point A in the middle;

[0031] Figure 4 for Figure 2 Partial detail of point B in the middle;

[0032] Figure 5 It is a cross-sectional view of the water injection member of the utility model;

[0033] Figure 6 It is a structural schematic diagram of the front end portion of the handle of the utility model;

[0034] Figure 7 It is a structural schematic diagram of the slider of the utility model;

[0035] Figure 8 It is a structural schematic diagram of the fixing column of the utility model. DETAILED DESCRIPTION

[0036] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0037] like Figures 1 to 8 As shown, an endoscopic stone removal basket comprises a handle 1, a slider 2, a fixing column 3, a pull cable 4, a booster tube 5 and a locking bolt 6;

[0038] The handle 1 is provided with a slide groove 7 extending in the front-to-back direction, and the rear end of the handle 1 is provided with a first finger ring 8;

[0039] The slider 2 is slidably sleeved on the handle 1 along the front-back direction, a second finger ring 9 is provided at the upper end of the slider 2, and a third finger ring 10 is provided at the lower end of the slider 2;

[0040] The fixing column 3 is connected to the slider 2 and at least partially extends into the slide slot 7. A locking hole 11 is provided in the fixing column 3.

[0041] The booster tube 5 is sleeved on the rear end of the cable 4, and the cable 4 and the booster tube 5 are extended into the slide groove 7 and inserted into the locking hole 11;

[0042] The locking bolt 6 is threadedly connected to the fixing column 3, and the locking bolt 6 is used to be screwed to the cable 4 and the booster tube 5 in the locking hole 11 to bend the cable 4 and the booster tube 5 and lock them on the fixing column 3. Specifically, the thumb is inserted into the first finger ring 8, and the index finger and the middle finger are respectively inserted into the second finger ring 9 and the third finger ring 10, so that the slider 2 can be driven to move forward and backward with one hand. During the forward and backward movement of the slider 2, the fixing column 3 can be driven to move, and the cable 4 and the booster tube 5 can be driven to move forward and backward. Therefore, in this embodiment, the cable 4 can be driven to move forward and backward by one hand, which is more convenient to use. More specifically, during the forward and backward movement, the cable 4 can not only drive the basket 26 to retract into the outer tube 28 to tighten the basket 26, but also drive the basket 26 to extend from the outer tube 28 to open the basket 26. Among them, by tightening and bending the cable 4 and the booster tube 5 through the locking bolt 6, the cable 4 can be firmly locked on the fixing column 3, thereby improving the reliability of the connection between the cable 4 and the fixing column 3 and making the connection more secure.

[0043] like Figure 2 , 3As shown in FIGS. 7 and 8, the slider 2 is provided with a mounting hole 12 aligned with the slide slot 7, and the fixing column 3 is fixedly installed in the mounting hole 12 and extends into the slide slot 7; in this embodiment, the fixing column 3 is snap-fitted and installed in the mounting hole 12. Of course, in some embodiments, the fixing column 3 can also be tightly connected or glued in the mounting hole 12.

[0044] like Figure 7 , 8 As shown, at least one anti-rotation plane portion 13 is provided on the inner wall of the mounting hole 12, and a matching plane portion 14 corresponding to the anti-rotation plane portion 13 and abutting against the corresponding anti-rotation plane portion 13 is provided on the outer wall of the fixing column 3, so as to prevent the fixing column 3 from rotating when tightening the locking bolt 6.

[0045] like Figure 1 , 2 As shown in Figures 3, 7 and 8, the slider 2 is also provided with a countersunk hole 15 which is located above the mounting hole 12 and connected to the mounting hole 12. The lower end of the fixing column 3 extends into the slide groove 7, and the upper end of the fixing column 3 and the upper end of the locking bolt 6 are both located in the countersunk hole 15.

[0046] like Figure 2 , 3 As shown in FIG. 8 , the fixing column 3 is provided with a threaded hole 16 intersecting with the locking hole 11 , and the locking bolt 6 is threadedly connected in the threaded hole 16 and is used to bend the cable 4 and the booster tube 5 inserted into the locking hole 11 .

[0047] In this embodiment, the lower end of the locking bolt 6 is a conical structure, which makes it easier to bend the cable 4 and the booster tube 5.

[0048] like Figure 1 , 2 As shown in , 4, 5, and 6, the endoscopic stone removal basket may further include a water injection member 17 and a sealing member 18;

[0049] The water injection member 17 is connected to the front end of the handle 1, and has a main channel 19 and a sealing channel 20 located at the rear end of the main channel 19. The pull cable 4 and the booster tube 5 extend into the slide groove 7 and are inserted into the locking hole 11 after passing through the main channel 19 and the sealing channel 20.

[0050] The water injection member 17 is also provided with a liquid injection channel 21 communicating with the main channel 19;

[0051] The sealing member 18 is installed in the sealing channel 20 and sleeved on the outer side of the booster tube 5 to form a seal between the booster tube 5 and the water injection member 17;

[0052] A step portion 22 facing backward is provided between the main channel 19 and the sealing channel 20, the front end of the seal 18 abuts against the step portion 22, and the rear end of the seal 18 abuts against the front end of the handle 1; specifically, liquid can be injected into the human body through the injection channel 21, and the seal 18 can prevent the injected liquid from leaking from the rear end of the main channel 19, and the front end of the handle 1 can press the seal 18 against the step portion 22 to fix the seal 18.

[0053] like Figures 4 to 6 As shown, a connecting hole 23 is provided in the water injection member 17, and the main channel 19, the sealing channel 20 and the connecting hole 23 are arranged and connected in sequence, and the front end of the handle 1 is inserted into the connecting hole 23, and a groove 24 which is recessed radially inward is provided on the outer peripheral wall of the front end of the handle 1, and at least one boss 25 for being inserted into the groove 24 is provided on the inner wall of the connecting hole 23; specifically, the insertion of the boss 25 into the groove 24 can prevent the front end of the handle 1 from falling off from the connecting hole 23.

[0054] like Figure 1 , 2 As shown in 4, the endoscopic stone removal basket may also include a basket 26, a sheath tube 27 and an outer tube 28;

[0055] The rear end of the sheath tube 27 is connected to the front end of the water injection member 17;

[0056] The rear end of the outer tube 28 is connected to the sheath tube 27;

[0057] The cable 4 also passes through the sheath tube 27 and the outer tube 28;

[0058] The net basket 26 is connected to the front end of the cable 4. The cable 4 is used to drive the net basket 26 to retract into the outer tube 28 when moving backward, and to drive the net basket 26 to extend from the outer tube 28 when moving forward. Specifically, in this embodiment, the slider 2 can be driven to move forward and backward by a single-handed operation, and the slider 2 then drives the fixed column 3, the booster tube 5 and the cable 4 to move forward and backward. When the cable 4 is driven to move backward, it can drive the net basket 26 to move backward and retract into the outer tube 28 to tighten the net basket 26. When the cable 4 is driven to move forward, it can drive the net basket 26 to move forward and extend from the outer tube 28 to open the net basket 26.

[0059] In summary, the thumb is inserted into the first finger ring 8, and the index finger and the middle finger are respectively inserted into the second finger ring 9 and the third finger ring 10, so that the slider 2 can be driven to move forward and backward with one hand. During the movement of the slider 2, the fixed column 3 can be driven to move, and then the cable 4 and the booster tube 5 can be driven to move forward and backward. Therefore, in this embodiment, the cable 4 can be driven to move forward and backward by one hand, which is more convenient to use. Among them, during the movement of the cable 4, the basket 26 can not only be driven to retract into the outer tube 28 to tighten the basket 26, but also be driven to extend the basket 26 from the outer tube 28 to open the basket 26. The cable 4 and the booster tube 5 are tightened and bent by the locking bolt 6, so that the cable 4 can be firmly locked on the fixed column 3, thereby improving the reliability of the connection between the cable 4 and the fixed column 3 and making the connection more secure.

[0060] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscopic stone removal basket, characterized in that: It comprises a handle (1), a slide block (2), a fixing column (3), a pull cable (4), a booster tube (5) and a locking bolt (6); The handle (1) is provided with a slide groove (7) extending in the front-to-back direction, and the rear end of the handle (1) is provided with a first finger ring (8); The slider (2) is slidably sleeved on the handle (1) in the front-rear direction, the upper end of the slider (2) is provided with a second finger ring (9), and the lower end of the slider (2) is provided with a third finger ring (10); The fixing column (3) is connected to the sliding block (2) and at least partially extends into the sliding groove (7), and a locking hole (11) is provided in the fixing column (3); The booster tube (5) is sleeved on the rear end of the cable (4), and the cable (4) and the booster tube (5) are extended into the slide groove (7) and inserted into the locking hole (11); The locking bolt (6) is threadedly connected in the fixing column (3), and the locking bolt (6) is used to be screwed to the cable (4) and the booster tube (5) in the locking hole (11) so as to bend the cable (4) and the booster tube (5) and lock them on the fixing column (3).

2. The endoscopic stone removal basket according to claim 1, characterized in that: The sliding block (2) is provided with a mounting hole (12) aligned with the sliding groove (7), and the fixing column (3) is fixedly mounted in the mounting hole (12) and extends into the sliding groove (7).

3. The endoscopic stone removal basket according to claim 2, characterized in that: At least one anti-rotation plane portion (13) is provided on the inner wall of the mounting hole (12), and a matching plane portion (14) corresponding one-to-one to the anti-rotation plane portion (13) and abutting against the corresponding anti-rotation plane portion (13) is provided on the outer wall of the fixing column (3).

4. The endoscopic stone removal basket according to claim 2, characterized in that: The slider (2) is also provided with a countersunk hole (15) located above the mounting hole (12) and connected to the mounting hole (12); the lower end of the fixing column (3) extends into the slide groove (7); the upper end of the fixing column (3) and the upper end of the locking bolt (6) are both located in the countersunk hole (15).

5. The endoscopic stone removal basket according to claim 1, characterized in that: The fixing column (3) is provided with a threaded hole (16) intersecting with the locking hole (11); the locking bolt (6) is threadedly connected in the threaded hole (16) and is used to bend the cable (4) and the booster tube (5) inserted into the locking hole (11).

6. The endoscopic stone removal basket according to claim 1, characterized in that: The lower end of the locking bolt (6) is a conical structure.

7. The endoscopic stone removal basket according to claim 1, characterized in that: It also includes a water injection member (17) and a sealing member (18); The water injection member (17) is connected to the front end of the handle (1), and the water injection member (17) has a main channel (19) and a sealing channel (20) located at the rear end of the main channel (19); the pull cable (4) and the booster tube (5) extend into the slide groove (7) and are inserted into the locking hole (11) after passing through the main channel (19) and the sealing channel (20); The water injection member (17) is also provided with a liquid injection channel (21) communicating with the main channel (19); The sealing member (18) is installed in the sealing channel (20) and sleeved on the outer side of the booster tube (5) to form a seal between the booster tube (5) and the water injection member (17); A step portion (22) facing rearward is provided between the main channel (19) and the sealing channel (20), the front end of the sealing member (18) abuts against the step portion (22), and the rear end of the sealing member (18) abuts against the front end of the handle (1).

8. The endoscopic stone removal basket according to claim 7, characterized in that: The water injection member (17) is provided with a connecting hole (23), the main channel (19), the sealing channel (20) and the connecting hole (23) are arranged in sequence and are connected in sequence, and the front end of the handle (1) is inserted into the connecting hole (23).

9. The endoscopic stone removal basket according to claim 8, characterized in that: A slot (24) recessed radially inward is provided on the outer peripheral wall of the front end of the handle (1), and at least one boss (25) for being inserted into the slot (24) is provided on the inner wall of the connecting hole (23).

10. The endoscopic stone removal basket according to claim 7, characterized in that: It also includes a mesh basket (26), a sheath tube (27) and an outer tube (28); The rear end of the sheath tube (27) is connected to the front end of the water injection member (17); The rear end of the outer tube (28) is connected to the sheath tube (27); The cable (4) also passes through the sheath tube (27) and the outer tube (28); The net basket (26) is connected to the front end of the cable (4). The cable (4) is used to drive the net basket (26) to retract into the outer tube (28) when moving backward, and to drive the net basket (26) to extend out of the outer tube (28) when moving forward.

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