Efficient botanical gastrolith lithotripter for endoscope

Abstract

The efficient botanical gastrolith lithotripter is composed of a lithotripter handle and an outer sleeve, a saw blade rocker is arranged on one side of the lithotripter handle, a saw blade transmission mechanism is arranged in the lithotripter handle, one end of a saw blade is in transmission connection with the saw blade transmission mechanism, and the other end of the saw blade extends out of the lithotripter handle. A snare moving mechanism and an outer sleeve moving mechanism are arranged in the extending direction, and a lithotripter protection head is arranged at the tail end of the other end of the saw blade. The outer sleeve is provided with a hollow structure, the saw blade, the ring steel wire, the saw blade supporting rod and the lithotripter protection head are all arranged in the center control structure, and the saw blade, the ring steel wire, the saw blade supporting rod and the lithotripter protection head can pass through the hollow structure at the same time. The end, close to the lithotripter handle, of the outer sleeve is in threaded connection with an outer sleeve connecting screw opening in the outer sleeve moving sliding block. Vegetable stomach stones with various sizes and hardness can be more effectively sleeved and crushed, the treatment time and frequency are reduced, and the treatment efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of endoscopy technology, specifically relating to an endoscopic plant-based gastric bezoar high-efficiency lithotripter. Background Technology

[0002] Currently, endoscopic lithotripsy of gastric stones primarily utilizes endoscopic snares, biopsy forceps, claw forceps, foreign body forceps, and lithotripters. However, in practice, endoscopic treatment using these existing instruments presents several problems. For instance, the wire and outer casing of disposable snares are often too soft to break up hard stones, and they are prone to deformation during treatment, requiring the use of multiple snares and frequent replacements. Biopsy forceps, claw forceps, and foreign body forceps are effective at removing the outer casing of gastric stones, but their limited openings mean they can only break up a small portion of the stone at a time. Furthermore, the lack of support in the stomach cavity makes the stone prone to slipping, increasing the difficulty of the procedure. Lithotripters work on a similar principle to snares, and they have a high probability of successfully breaking up hard stones, but the wire can also deform and become unusable, again requiring frequent replacements. Especially when encountering extremely hard stones, there is a risk of the wire breaking, causing it to become stuck inside the stone and become difficult to move.

[0003] All of the above indicates that existing instruments are ineffective and inefficient in treating phytobezoars. Given the various shortcomings of current endoscopic treatment instruments, which severely affect the treatment efficacy and efficiency of phytobezoars, the invention of a highly efficient, time-saving, and labor-saving lithotripter is urgently needed. Summary of the Invention

[0004] To address the aforementioned technical problems in existing technologies, this invention provides an endoscopic high-efficiency lithotripter for plant-based gastric stones. This device improves the efficiency of lithotripsy for handling large, hard-shelled plant-based gastric stones under endoscopy, while reducing intraoperative risks and treatment costs for patients. It overcomes the technical problems of existing instruments, such as small openings, inconvenient wire adjustment, and easy deformation. It can more effectively capture and break up plant-based gastric stones of various sizes and hardnesses, reducing treatment time and frequency, improving treatment efficiency, and reducing patient suffering and medical costs.

[0005] The technical solution adopted in this invention is:

[0006] An endoscopic plant-based gastric bezoar high-efficiency lithotripter consists of a lithotripter handle (1) and an outer tube (16). The lithotripter handle (1) has a saw blade rocker (2) on one side, a saw blade transmission mechanism inside the handle (1), one end of a saw blade (7) being connected to the saw blade transmission mechanism, and the other end extending outside the handle (1). A snare moving mechanism and an outer tube moving mechanism are respectively provided in the extending direction. The snare moving mechanism includes a snare slider moving rail (8), a snare moving slider (10), and a snare wire (11) to adjust the size of the snare wire (11) at the lithotripter head. The outer tube moving mechanism includes an outer tube slider moving rail (9) and an outer tube moving slider (13) to adjust the length of the saw blade at the lithotripter head. A lithotripter protective head (17) is provided at the other end of the saw blade (7).

[0007] The outer tube (16) has a hollow structure. The saw blade (7), the loop wire (11), the saw blade support rod (12), and the crusher protection head (17) are all arranged inside the hollow structure. The saw blade (7), the loop wire (11), the saw blade support rod (12), and the crusher protection head (17) can all pass through the hollow structure at the same time. The end of the outer tube (16) near the crusher handle (1) is screwed to the outer tube connecting screw (15) on the outer tube moving slider (13).

[0008] Furthermore, the saw blade transmission mechanism includes a rocker gear (3), a saw blade reciprocating gear (4), a transmission gear (5), and a saw blade reciprocating rack (6). The rocker gear (3) is connected to the saw blade rocker (2) on one side of the crusher handle (1). Rotating the saw blade rocker (2) can drive the rocker gear (3) to rotate. The rocker gear (3) meshes with the transmission gear (5). The transmission gear (5) and the saw blade reciprocating gear (4) are arranged side by side to realize that the saw blade reciprocating gear (4) and the transmission gear (5) rotate synchronously. The saw blade reciprocating rack (6) is externally meshed with the rack reciprocating gear (4). When the rack reciprocating gear (4) rotates, the saw blade reciprocating rack (6) moves back and forth. The saw blade (7) is connected to the saw blade reciprocating rack (6).

[0009] Furthermore, the end of the saw blade (7) near the handle (1) is located inside the handle and extends to the rear end of the saw blade reciprocating toothed rack (6), and is connected to the front end of the saw blade reciprocating toothed rack (6). During the reciprocating motion, it is ensured that the saw blade reciprocating toothed rack (6) can only move back and forth, without displacement in the up and down or left and right directions, thus reducing vibration.

[0010] Furthermore, the front end of the crusher handle (1) is provided with the ring slider moving rail (8) and the outer sleeve moving rail (9). One end of the ring slider moving rail (8) is connected to the outer shell of the crusher handle (1). The ring slider (10) is sleeved on the ring slider moving rail (8). The ring slider (10) can slide back and forth along the ring slider moving rail (8) to realize the size adjustment of the ring wire (11) at the head of the crusher.

[0011] The other end of the ring slider moving rail (8) is connected to the outer tube moving rail (9). The outer tube moving rail (9) is provided with the outer tube moving slider (13). The outer tube moving slider (13) can move back and forth along the outer tube moving rail (9) to adjust the length of the saw blade at the head of the stone crusher.

[0012] Furthermore, the crusher protection head (17) is provided with a loop wire limiter (18), which can rotate along the end connected to the crusher protection head (17) at a rotation angle of 90° to limit the movement of the loop wire (11) on the loop wire limiter (18) in the direction perpendicular to the saw blade (7); the interior of the crusher protection head (17) is hollowed out at the end near the saw blade (7), which plays a limiting role during the reciprocating motion of the saw blade (7).

[0013] Furthermore, the saw blade reciprocating gear (4) is provided with gear teeth, and the saw blade reciprocating rack (6) is a rectangular frame. The upper and lower sides of the rectangular frame are respectively provided with rack teeth. The saw blade reciprocating gear (4) is embedded inside the rectangular frame and works in conjunction with the rack teeth. The saw blade reciprocating gear (4) rotates to drive the saw blade reciprocating rack (6) to reciprocate, thereby realizing the reciprocating motion of the saw blade (7).

[0014] Furthermore, the snare slider moving rail (8) is a hollow cylinder used to wrap the saw blade (7) extending from the stone crusher handle (1); the upper and lower sides of the outer wall of the hollow cylinder are provided with a moving groove for the snare slider (10) to move back and forth.

[0015] Furthermore, the snare sliding block (10) is provided with a ring on the upper and lower surfaces for the operator's fingers to pass through; the upper and lower walls of the snare sliding block (10) are inserted into the moving grooves on the upper and lower surfaces of the snare sliding block moving rail (8) and connected to the snare wire (11). The snare sliding block (10) moves back and forth along the snare sliding block moving rail (8) to adjust the size of the snare wire (11) at the head of the crusher.

[0016] Furthermore, the outer tube moving rail (9) is a hollow cylinder, and two holes are respectively opened at the connection between the hollow cylinder and the snare slider moving rail (8) for the snare wire (11) and the saw blade (7) to pass through; two saw blade support rods (12) are provided on the holes through which the saw blade (7) passes, and the two saw blade support rods (12) are respectively located on the left and right sides of the saw blade (7) to limit the left and right bending of the saw blade (7) to ensure the cutting function of the saw blade (7); the other end of the two saw blade support rods (12) is connected to the crusher protective head (17); a sliding groove is opened on one side of the outer tube moving rail (9), and the outer tube fixing knob (14) on the outer tube moving slider (13) is set in the sliding groove and can move back and forth along the sliding groove to realize the fixation of the crusher outer tube (16) after movement.

[0017] Compared with the prior art, the beneficial effects of the present invention are reflected in:

[0018] 1. This invention can adjust the maximum opening of the lithotripter's snare according to the size of the gastric stone; it makes the lithotripter easy and effortless to operate when cutting hard gastric stones, and prevents the steel wire from deforming.

[0019] 2. This invention has the function of freely adjusting the length of the stone crusher head, thus getting rid of the problem that a single size of the crusher is all that is available.

[0020] 3. This invention is the first to combine a snare device with high-frequency saw cutting technology, which solves the limitations of traditional single-mode instruments (mechanical compression or laser lithotripsy) and provides a new paradigm for the treatment of gastrointestinal stones through material mechanics optimization (such as the fatigue resistance of nickel-titanium alloy steel wire).

[0021] 4. This invention utilizes a metal threaded outer sleeve to allow the lithotripter to pass smoothly through the endoscopic biopsy tube and to adjust the saw blade length according to the size of the gastric bezoar. One end of the outer sleeve connects to a slider on the lithotripter handle, enabling adjustment of the saw blade length at the front of the lithotripter; the other end provides necessary support for locating the gastric bezoar, achieving efficient lithotripsy.

[0022] 5. This invention effectively combines a snare and a saw blade, enabling the stone crusher to efficiently cut hard-shelled gastric stones. The function of snareing the gastric stone is achieved through an adjustable-length steel wire. While the gastric stone is being snareed, the saw blade on the other side can move back and forth to cut the gastric stone. Attached Figure Description

[0023] Figure 1 This is a diagram showing the connection relationship between the snare wire, the saw blade, and the protective head of the stone crusher in this invention.

[0024] Figure 2 This is a schematic diagram of the outer tube fixing knob of the present invention.

[0025] Figure 3 This is a schematic diagram of the moving mechanism of the snare and the moving mechanism of the outer tube of the present invention.

[0026] Figure 4 This is a schematic diagram of the saw blade transmission mechanism of the present invention.

[0027] Figure 5 This is a partial schematic diagram of the present invention. Figure 1 .

[0028] Figure 6 This is a partial schematic diagram of the present invention. Figure 2 .

[0029] Figure 7 This is a schematic diagram of the overall structure of the invention. Figure 1 .

[0030] Figure 8 This is a schematic diagram of the overall structure of the invention. Figure 2 .

[0031] Figure 9 This is a schematic diagram of the overall structure of the invention. Figure 3 . Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0035] refer to Figures 1 to 9 This invention discloses an endoscopic plant-based gastric bezoar high-efficiency lithotripter, comprising a lithotripter handle 1 and an outer tube 16. A saw blade rocker arm 2 is provided on one side of the lithotripter handle 1. A saw blade transmission mechanism is provided inside the lithotripter handle 1. One end of a saw blade 7 is connected to the saw blade transmission mechanism, and the other end extends outside the lithotripter handle 1. A snare moving mechanism and an outer tube moving mechanism are respectively provided in the extending direction. The snare moving mechanism includes a snare slider moving rail 8, a snare moving slider 10, and a snare wire 11, used to adjust the size of the snare wire 11 at the lithotripter head. The outer tube moving mechanism includes an outer tube slider moving rail 9 and an outer tube moving slider 13, used to adjust the length of the saw blade at the lithotripter head. A lithotripter protective head 17 is provided at the other end of the saw blade 7.

[0036] The outer sleeve 16 has a hollow structure. The saw blade 7, the loop wire 11, the saw blade support rod 12, and the crusher protection head 17 are all disposed inside the hollow structure, and the saw blade 7, the loop wire 11, the saw blade support rod 12, and the crusher protection head 17 can all pass through the hollow structure simultaneously. The end of the outer sleeve 16 near the crusher handle 1 is screwed to the outer sleeve connecting screw 15 on the outer sleeve moving slider 13.

[0037] In one embodiment, the saw blade transmission mechanism includes a rocker gear 3, a saw blade reciprocating gear 4, a transmission gear 5, and a saw blade reciprocating rack 6. The rocker gear 3 is connected to a saw blade rocker arm 2 on one side of the crusher handle 1. Rotating the saw blade rocker arm 2 can drive the rocker gear 3 to rotate. The rocker gear 3 meshes with the transmission gear 5. The transmission gear 5 and the saw blade reciprocating gear 4 are arranged side by side to achieve synchronous rotation of the saw blade reciprocating gear 4 and the transmission gear 5. The saw blade reciprocating gear 4 is externally meshed with the saw blade reciprocating rack 6. When the rack reciprocating gear 4 rotates, the saw blade reciprocating rack 6 reciprocates back and forth. The saw blade 7 is connected to the saw blade reciprocating rack 6.

[0038] In one embodiment, the end of the saw blade 7 near the handle 1 is located inside the handle and extends to the rear end of the saw blade reciprocating toothed rack 6, and is connected to the front end of the saw blade reciprocating toothed rack 6. During the reciprocating motion, it is ensured that the saw blade reciprocating toothed rack 6 can only move back and forth, without displacement in the up and down or left and right directions, thereby reducing vibration.

[0039] In one embodiment, the front end of the crusher handle 1 is provided with the ring slider moving rail 8 and the outer sleeve moving rail 9. One end of the ring slider moving rail 8 is connected to the outer shell of the crusher handle 1. The ring slider 10 is sleeved on the ring slider moving rail 8. The ring slider 10 can slide back and forth along the ring slider moving rail 8 to realize the size adjustment of the ring wire 11 at the head of the crusher.

[0040] The other end of the ring slider moving rail 8 is connected to the outer tube moving rail 9. The outer tube moving rail 9 is provided with the outer tube moving slider 13. The outer tube moving slider 13 can move back and forth along the outer tube moving rail 9 to adjust the length of the saw blade at the head of the stone crusher.

[0041] In one embodiment, the crusher protective head 17 is provided with a loop wire limiter 18, which can rotate along the end connected to the crusher protective head 17 by a rotation angle of 90°, thereby limiting the movement of the loop wire 11 on the loop wire limiter 18 in the direction perpendicular to the saw blade 7; the interior of the crusher protective head 17 is hollowed out at the end near the saw blade 7, which plays a limiting role during the reciprocating motion of the saw blade 7.

[0042] In one embodiment, the saw blade reciprocating gear 4 is provided with gear teeth, and the saw blade reciprocating rack 6 is a rectangular frame with rack teeth on the upper and lower sides of the rectangular frame. The saw blade reciprocating gear 4 is embedded inside the rectangular frame and works in conjunction with the rack teeth. The saw blade reciprocating gear 4 rotates to drive the saw blade reciprocating rack 6 to reciprocate, thereby realizing the reciprocating motion of the saw blade 7.

[0043] In one embodiment, the snare slider moving rail 8 is a hollow cylinder used to wrap the saw blade 7 extending from the stone crusher handle 1; the upper and lower sides of the outer side wall of the hollow cylinder are provided with a moving groove for the snare slider 10 to move back and forth.

[0044] In one embodiment, the snare slider 10 has a ring on each of its upper and lower surfaces for the operator's fingers to pass through; the upper and lower walls of the snare slider 10 are inserted into the moving grooves on the snare slider moving rail 8 and connected to the snare wire 11; the snare slider 10 moves back and forth along the snare slider moving rail 8 to adjust the size of the snare wire 11 at the head of the crusher.

[0045] In one embodiment, the outer tube moving rail 9 is a hollow cylinder. Two holes are respectively provided at the connection point between the hollow cylinder and the snare slider moving rail 8, allowing the snare wire 11 and saw blade 7 to pass through. Two saw blade support rods 12 are provided in the holes through which the saw blade 7 passes, located on the left and right sides of the saw blade 7 respectively, to limit the left and right bending of the saw blade 7 and ensure its cutting function. The other ends of the two saw blade support rods 12 are connected to the crusher protective head 17. A sliding groove is provided on one side of the outer tube moving rail 9. The outer tube fixing knob 14 on the outer tube moving slider 13 is located in the sliding groove and can move back and forth along the sliding groove to fix the crusher outer tube 16 after movement.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-efficiency lithotripter for endoscopic plant-based gastric stones, comprising a lithotripter handle (1) and an outer sheath (16), characterized in that, The crusher handle (1) has a saw blade rocker arm (2) on one side. The crusher handle (1) has a saw blade transmission mechanism inside. One end of the saw blade (7) is connected to the saw blade transmission mechanism, and the other end extends to the outside of the crusher handle (1). A snare moving mechanism and an outer tube moving mechanism are respectively provided in the extending direction. The snare moving mechanism includes a snare slider moving rail (8), a snare moving slider (10), and a snare wire (11) to realize the size adjustment of the snare wire (11) at the head of the crusher. The outer tube moving mechanism includes an outer tube slider moving rail (9) and an outer tube moving slider (13) to realize the length adjustment of the saw blade at the head of the crusher. The other end of the saw blade (7) is provided with a crusher protective head (17). The outer tube (16) has a hollow structure. The saw blade (7), the loop wire (11), the saw blade support rod (12), and the crusher protection head (17) are all arranged inside the hollow structure. The saw blade (7), the loop wire (11), the saw blade support rod (12), and the crusher protection head (17) can all pass through the hollow structure at the same time. The end of the outer tube (16) near the crusher handle (1) is screwed to the outer tube connecting screw (15) on the outer tube moving slider (13).

2. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 1, characterized in that, The saw blade transmission mechanism includes a rocker gear (3), a saw blade reciprocating gear (4), a transmission gear (5), and a saw blade reciprocating rack (6). The rocker gear (3) is connected to the saw blade rocker (2) on one side of the stone crusher handle (1). Rotating the saw blade rocker (2) can drive the rocker gear (3) to rotate. The rocker gear (3) meshes with the transmission gear (5). The transmission gear (5) and the saw blade reciprocating gear (4) are arranged side by side to realize that the saw blade reciprocating gear (4) and the transmission gear (5) rotate synchronously. The saw blade reciprocating rack (6) is externally meshed with the saw blade reciprocating gear (4). When the saw blade reciprocating gear (4) rotates, the saw blade reciprocating rack (6) moves back and forth. The saw blade (7) is connected to the saw blade reciprocating rack (6).

3. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 2, characterized in that, The end of the saw blade (7) near the handle (1) of the stone crusher is located inside the handle and extends to the rear end of the saw blade reciprocating toothed rack (6), and is connected to the front end of the saw blade reciprocating toothed rack (6). During the reciprocating motion, it ensures that the saw blade reciprocating toothed rack (6) can only move back and forth, without displacement in the up and down or left and right directions, thus reducing vibration.

4. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 1, characterized in that, The front end of the crusher handle (1) is provided with the ring slider moving rail (8) and the outer tube moving rail (9). One end of the ring slider moving rail (8) is connected to the outer shell of the crusher handle (1). The ring slider (10) is sleeved on the ring slider moving rail (8). The ring slider (10) can slide back and forth along the ring slider moving rail (8) to realize the size adjustment of the ring wire (11) at the head of the crusher. The other end of the ring slider moving rail (8) is connected to the outer tube moving rail (9). The outer tube moving rail (9) is provided with the outer tube moving slider (13). The outer tube moving slider (13) can move back and forth along the outer tube moving rail (9) to adjust the length of the saw blade at the head of the stone crusher.

5. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 1, characterized in that, The crusher protection head (17) is provided with a loop wire limiter (18). The loop wire limiter (18) can rotate along the end connected to the crusher protection head (17) at a rotation angle of 90° to limit the movement of the loop wire (11) on the loop wire limiter (18) in the direction perpendicular to the saw blade (7). The interior of the crusher protection head (17) is hollowed out at the end near the saw blade (7) and plays a limiting role during the reciprocating motion of the saw blade (7).

6. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 2, characterized in that, The saw blade reciprocating gear (4) is provided with gear teeth, and the saw blade reciprocating rack (6) is a rectangular frame. The upper and lower sides of the rectangular frame are respectively provided with rack teeth. The saw blade reciprocating gear (4) is embedded in the rectangular frame and works in conjunction with the rack teeth. The saw blade reciprocating gear (4) rotates to drive the saw blade reciprocating rack (6) to reciprocate, thereby realizing the reciprocating motion of the saw blade (7).

7. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 1, characterized in that, The snare slider moving rail (8) is a hollow cylinder used to wrap the saw blade (7) extending from the stone crusher handle (1); the upper and lower sides of the outer wall of the hollow cylinder are provided with a moving groove for the snare slider (10) to move back and forth.

8. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 7, characterized in that, The snare sliding block (10) has a ring on its upper and lower surfaces for the operator's fingers to pass through; the upper and lower walls of the snare sliding block (10) are inserted into the moving grooves on the upper and lower surfaces of the snare sliding block moving rail (8) and connected to the snare wire (11); the snare sliding block (10) moves back and forth along the snare sliding block moving rail (8) to adjust the size of the snare wire (11) at the head of the crusher.

9. The endoscopic plant-based gastric bezoar high-efficiency lithotripter as described in claim 1, characterized in that, The outer tube moving rail (9) is a hollow cylinder. Two holes are opened at the connection between the hollow cylinder and the snare slider moving rail (8) for the snare wire (11) and the saw blade (7) to pass through. Two saw blade support rods (12) are provided on the holes through which the saw blade (7) passes. The two saw blade support rods (12) are located on the left and right sides of the saw blade (7) to limit the left and right bending of the saw blade (7) so as to ensure the cutting function of the saw blade (7). The other ends of the two saw blade support rods (12) are connected to the crusher protective head (17); a sliding groove is opened on one side of the outer tube moving rail (9), and the outer tube fixing knob (14) on the outer tube moving slider (13) is set in the sliding groove and can move back and forth along the sliding groove to fix the crusher outer tube (16) after it moves.

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