Minimally invasive lithotripsy device for facilitating stone removal during laparoscopic cholecystectomy

Abstract

The present invention relates to the field of medical device technology, and discloses a minimally invasive lithotripsy device for facilitating stone removal during laparoscopic cholecystectomy. The device comprises a side plate, a gripping tube, a first connecting rod, a first barrel, a first rack, a first handle, a fixed plate, a movable plate, a clamping plate, a second rack, a second barrel, a second connecting rod, a second handle, and a chute. The device is simple to use and highly innovative, capable of stably clamping stones of varying sizes and simultaneously crushing them, thereby avoiding repeated operations due to incomplete stone crushing, thereby improving surgical efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy. Background Art

[0002] Gallstones are a common and frequently occurring disease. Cholecystectomy is often necessary to prevent cholecystitis and gallbladder cancer. Currently, the standard cholecystectomy procedure is minimally invasive laparoscopic surgery. However, large gallstones can be challenging to remove, often requiring the stone to be crushed and removed before the specimen can be retrieved. In some cases, enlargement of the trocar puncture port may be necessary.

[0003] Existing minimally invasive lithotripsy devices used in hepatobiliary surgery are usually tweezer-shaped, which makes clamping difficult. Moreover, due to the different sizes of stones, there is a possibility of unstable clamping during lithotripsy, which may cause stones to slip, affecting the progress of the operation.

[0004] Therefore, it is urgent to design a convenient and effective lithotripsy device to solve the above technical problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects in the prior art, the present invention provides a minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy. The device is simple to use, highly innovative, and can stably clamp stones of different sizes. It can crush the stones while stably clamping them, avoiding repeated operations due to incomplete stone crushing, thereby improving surgical efficiency.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy, comprising a side panel and a grip tube, wherein the side panel is provided with two pieces, one end of the grip tube extends between the two side panels, and a connecting rod is provided between the outer side wall of the portion of the grip tube extending into the two side panels and the two side panels; a cylinder body is provided in the grip tube, both ends of which pass through the grip tube, a rack is provided at one end of the cylinder body, and a handle is provided at the other end; two clamping arms are provided between the two side panels, and the clamping arms include a fixed plate, a movable plate and a clamping plate One end of the fixed plate is arranged in an arc shape and is provided with a rack 2 that meshes with the rack 1. The fixed plate is provided with one end of the rack 2, which is hinged between the two side plates, and the movable plate and the fixed plate, as well as the clamping plate and the movable plate are elastically hinged; a cylinder 2 with one end extending out of the cylinder 1 is provided in the cylinder 1, and a connecting rod 2 is provided between the end of the cylinder 2 extending out of the cylinder 1 and the end of the movable plate close to the clamping plate, and the two ends of the connecting rod 2 are respectively hinged to the movable plate and the cylinder 2, and a handle 2 is provided on the top of the other end of the cylinder 2, and a sliding groove for the handle 2 to pass through is provided on the side wall of the cylinder 1.

[0007] Furthermore, a clamping pad is provided on the inner side wall of the clamping plate.

[0008] Furthermore, a lithotripsy electrode with both ends extending out of the second cylinder is provided in the second cylinder, and a handle three with one end extending out of the first cylinder is provided in the first cylinder, and the handle three is connected to the lithotripsy motor.

[0009] Furthermore, the outer side wall of the portion of the grip tube that does not extend between the two side panels is provided with anti-slip grooves.

[0010] In summary, the present invention has the following beneficial effects: the present invention is simple to use, highly innovative, can stably clamp stones of different sizes, and crush the stones while stably clamping them, avoiding repeated operations caused by incomplete stone crushing, thereby improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of a minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy according to an embodiment of the present invention;

[0012] Figure 2 is a cross-sectional view of a minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy according to an embodiment of the present invention;

[0013] Figure 3 is a top view of the grip portion of an embodiment of the present invention;

[0014] Figure 4 yes Figure 1 The structural diagram at A in the middle;

[0015] In the figure: 1. Side panel; 2. Grip cylinder; 3. Connecting rod 1; 4. Cylinder body 1; 5. Rack 1; 6. Handle 1; 7. Fixed plate; 8. Movable plate; 9. Clamping plate; 10. Rack 2; 11. Cylinder body 2; 12. Connecting rod 2; 13. Handle 2; 14. Slide; 15. Clamping pad; 16. Lithotripsy electrode; 17. Handle 3; 18. Anti-slip groove. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-4 The present invention is described in further detail.

[0017] Example: A minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy, such as Figures 1 to 4 As shown, it includes a side panel 1 and a grip tube 2. The side panel 1 is provided with two pieces. One end of the grip tube 2 extends between the two side panels 1. A connecting rod 3 is fixedly installed between the outer side wall of the portion of the grip tube 2 extending into the two side panels 1 and the two side panels 1. The outer side wall of the portion of the grip tube 2 not extending between the two side panels 1 is engraved with anti-slip grooves 18. The setting of the anti-slip grooves 18 can prevent the grip tube 2 from slipping when the medical staff holds the grip tube 2.

[0018] A cylinder body 4 is installed in the grip tube 2, both ends of which pass through the grip tube 2. The cylinder body 4 can slide in the grip tube 2. A rack 5 is installed at one end of the cylinder body 4, and a handle 6 is installed at the other end; two clamping arms are installed between the two side panels 1, and the clamping arms include a fixed plate 7, a movable plate 8 and a clamping plate 9. A clamping pad 15 is fixedly installed on the inner side wall of the clamping plate 9. The clamping pad 15 is used to increase the friction between the device and the stone to avoid slipping when clamping the stone.

[0019] One end of the fixed plate 7 is arranged in an arc shape and is equipped with a rack 2 10 meshing with the rack 1 5. One end of the fixed plate 7 equipped with the rack 2 10 is hinged between the two side plates 1, that is, the fixed plate 7 can rotate around the hinge. The movable plate 8 and the fixed plate 7 and the clamping plate 9 and the movable plate 8 are elastically hinged. When no external force is applied, the elastic hinge makes the clamping arm naturally return to the state as shown. Figure 1 The status shown.

[0020] A cylinder 2 11 with one end extending out of the cylinder 1 4 is installed in the cylinder 1 4. The cylinder 2 11 can slide along the cylinder 1 4. A connecting rod 2 12 is installed between the end of the cylinder 2 11 extending out of the cylinder 1 4 and the end of the movable plate 8 close to the clamping plate 9. The two ends of the connecting rod 2 12 are respectively hinged to the movable plate 8 and the cylinder 2 11.

[0021] A second handle 13 is installed on the top of the other end of the cylinder body 11, and a slide groove 14 for the second handle 13 to pass through is opened on the side wall of the cylinder body 14. The second handle 13 can slide in the slide groove 14. A lithotripsy electrode 16 with both ends extending out of the cylinder body 11 is installed in the cylinder body 11, and a third handle 17 with one end extending out of the cylinder body 4 is installed in the cylinder body 14. The third handle 17 is connected to the lithotripsy motor.

[0022] Working principle: When using this device, first push handle 16 to move cylinder 14. Due to the engagement of rack 15 and rack 2 10, the fixed plate 7 is driven to rotate, so that the two clamping arms are opened. After clamping the stone, pull handle 2 13 to close the clamping arms. Then, turn handle 2 13 to pull connecting rod 2 12 backward. Connecting rod 2 12 drives the angle between the two clamping arms to become smaller. Due to the presence of clamping pad 15, the stone will not slip off and the stone will be stably clamped between the two clamping plates 9. Then, press handle 3 17 to make the lithotripsy motor crush the stone.

[0023] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy, characterized in that: The utility model comprises a side panel (1) and a grip tube (2), wherein the side panel (1) is provided with two pieces, one end of the grip tube (2) extends between the two side panels (1), and a connecting rod (3) is provided between the outer side wall of the portion of the grip tube (2) extending into the two side panels (1) and the two side panels (1); a cylinder (4) with both ends extending through the grip tube (2) is provided in the grip tube (2), one end of the cylinder (4) is provided with a rack (5), and the other end is provided with a handle (6); two clamping arms are provided between the two side panels (1), and the clamping arms include a fixed plate (7), a movable plate (8) and a clamping plate (9), one end of the fixed plate (7) is provided with a rack (10) meshing with the rack (5), and the fixed plate (7) is provided with a rack (10) meshing with the rack (5). The plate (7) is provided with a rack (10) whose one end is hinged to the two side plates (1), and the movable plate (8) and the fixed plate (7) as well as the clamping plate (9) and the movable plate (8) are elastically hinged; the cylinder (4) is provided with a cylinder (11) with one end extending out of the cylinder (4), and a connecting rod (12) is provided between the end of the cylinder (11) extending out of the cylinder (4) and the end of the movable plate (8) close to the clamping plate (9), and the two ends of the connecting rod (12) are respectively hinged to the movable plate (8) and the cylinder (11), and the top of the other end of the cylinder (11) is provided with a handle (13), and the side wall of the cylinder (4) is provided with a sliding groove (14) for the handle (13) to pass through; The second cylinder (11) is provided with a lithotripsy electrode (16) with both ends extending out of the second cylinder (11), and the first cylinder (4) is provided with a handle (17) with one end extending out of the first cylinder (4), and the handle (17) is connected to the lithotripsy motor.

2. The minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy according to claim 1, characterized in that: The inner side wall of the clamping plate (9) is provided with a clamping pad (15).

3. The minimally invasive lithotripsy device for facilitating the removal of stones during laparoscopic cholecystectomy according to claim 1, characterized in that: The outer side wall of the portion of the grip tube (2) that does not extend between the two side panels (1) is provided with anti-slip grooves (18).

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