Stomach stone crushing device

Abstract

The utility model relates to a gastric calculus lithotripsy device which solves the problems that an existing lithotripsy device is complex in structure, inconvenient to use and poor in lithotripsy effect. The stone crushing device comprises a flexible stone crushing outer sleeve, a stone crushing steel wire, a hard steel wire supporting seat, a hard grab handle seat, a stone crushing handle and a steel wire end adjusting clamping piece, and the steel wire supporting seat is located at the far end of the stone crushing outer sleeve. The steel wire end adjusting clamping piece drives the stone breaking steel wire to clamp broken stones, then the stone breaking handle is rotated in the forward direction, the stone breaking handle rotates on the steel wire end adjusting clamping piece and drives the steel wire to twist to cut the stones, and when the stone breaking handle is rotated in the reverse direction, the stone breaking steel wire resets under the action of the elastic force of the stone breaking steel wire. The size of the lithotripsy ring can be adjusted through the steel wire end adjusting clamping piece, the lithotripsy ring can adapt to gastric calculi of different types and sizes, sufficient strength and accuracy are achieved, meanwhile, operation is easy and convenient, and the burden and pain of a patient are relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to a gastric calculus crushing device. BACKGROUND

[0002] At present, for the endoscopic minimally invasive calculus extraction of gastric calculus, a snare blunt cutting method is mainly used to cut the calculus into small pieces and then take out the small pieces under the direct vision of an endoscope. However, for the gastric calculus with a large volume (the diameter is more than 3 cm) and a hard texture, the traditional snare calculus crushing method has some problems. First, the method has a limited effect when cutting large calculus, and repeated cutting will cause the snare to be damaged (once deformed, the snare cannot be used again), and the snare is expensive, so the operation without a matched snare is time-consuming and laborious, and increases the burden and pain of the patient. An existing patent application, for example, No. CN201620973529.6, entitled "A gallbladder calculus crushing device", provides another solution. The device uses a drill bit method to crush the calculus. However, the device has a problem of insufficient impact range and impact force for the gastric calculus with a soft texture, such as large calculus caused by hair. In addition, the device has a relatively complex structure and cannot be used for the treatment of gastric calculus with multiple causes in the stomach environment. SUMMARY

[0003] The utility model aims at solving the problems of the existing calculus crushing device, such as complex structure, inconvenient use and poor calculus crushing effect.

[0004] To solve the technical problems proposed in the utility model, the technical scheme adopted is as follows: the gastric calculus crushing device comprises a flexible calculus crushing outer sleeve, a calculus crushing steel wire, a hard steel wire support seat, a hard handle seat, a calculus crushing handle and a steel wire end adjusting clamp, the steel wire support seat is located at the distal end of the calculus crushing outer sleeve, the calculus crushing steel wire is arranged in the calculus crushing outer sleeve and reaches the distal end of the calculus crushing outer sleeve, is bent and then is connected with the steel wire support seat to form a calculus crushing ring, the handle seat is located at the proximal end of the calculus crushing outer sleeve, the steel wire end adjusting clamp is movably arranged on the handle seat, the calculus crushing handle is sleeved on the upper part of the steel wire end adjusting clamp, the upper part of the steel wire end adjusting clamp is provided with a threaded column, the calculus crushing handle is provided with an internal thread sleeve matched with the threaded column, and the two ends of the steel wire are fixedly connected with the calculus crushing handle.

[0005] The technical scheme further limited in the utility model includes:

[0006] The flexible calculus crushing outer sleeve is provided with a steel wire guide groove corresponding to the calculus crushing steel wire.

[0007] The steel wire end adjusting clamp is in a sleeve structure, and the steel wire end adjusting clamp is sleeved outside the handle seat.

[0008] The wire end regulating clamp is provided with clamping teeth arranged up and down, and the handle seat is provided with an elastic clamp matched with the clamping teeth.

[0009] The steel wire end adjustment clamp is provided with a raised push handle.

[0010] The stone crushing handle is provided with a steel wire fixing rod for fixing the stone crushing wire.

[0011] The steel wire support seat is glued and connected to the gravel outer casing.

[0012] The rigid handle seat is glued to the gravel outer sleeve.

[0013] Through the above technical scheme, the beneficial effects of the utility model are as follows: when the gastric stone lithotripsy device of the utility model is used in conjunction with an endoscope, the stone is placed in the lithotripsy ring, and then the wire end adjustment clamp is pushed, and the wire end adjustment clamp drives the lithotripsy wire to clamp the stone, and then the lithotripsy handle is rotated forward, and the lithotripsy handle rotates on the wire end adjustment clamp while driving the wire to twist and cut the stone into pieces. When the lithotripsy handle is rotated in the reverse direction, the lithotripsy wire is reset under the action of its own elastic force, and the size of the lithotripsy ring can be adjusted by the wire end adjustment clamp, which can adapt to gastric stones of different types and sizes, and has sufficient force and precision. At the same time, it is easy to operate, reducing the burden and pain of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the three-dimensional structure of a gastric stone lithotripsy device.

[0015] Figure 2 The utility model is a schematic diagram of the cross-section structure of a gastric stone crushing device.

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0017] Figure 4 The utility model is a schematic diagram of the explosion structure of a gastric stone crushing device. DETAILED DESCRIPTION

[0018] The structure of the present invention is further described below with reference to the accompanying drawings.

[0019] Reference Figures 1 to 4The gastric calculus crushing device comprises a flexible calculus crushing outer sleeve 1, a calculus crushing steel wire 2, a hard steel wire support seat 3, a hard handle seat 4, a calculus crushing handle 5 and a steel wire end head adjusting clamp 6. The steel wire support seat is located at the distal end of the calculus crushing outer sleeve, and can be fixedly connected with the calculus crushing outer sleeve. The calculus crushing steel wire is arranged in the calculus crushing outer sleeve and is bent at the distal end of the calculus crushing outer sleeve to form a calculus crushing ring 21 with the steel wire support seat. In the embodiment, one calculus crushing steel wire is bent to form a calculus crushing ring at the bottom of the steel wire support seat. The handle seat is located at the proximal end of the calculus crushing outer sleeve, and can be fixedly connected with the calculus crushing outer sleeve. The steel wire end head adjusting clamp is movably arranged on the handle seat. The calculus crushing handle is arranged on the upper portion of the steel wire end head adjusting clamp. The upper portion of the steel wire end head adjusting clamp 6 is provided with a threaded column 61. The calculus crushing handle is provided with an internal thread sleeve matched with the threaded column. The two ends of the steel wire are fixedly connected with the calculus crushing handle. In the embodiment, the calculus crushing handle 5 is provided with a steel wire fixing rod 51 for fixing the calculus crushing steel wire. The steel wire fixing rod is used for tightly fixing the steel wire. The calculus crushing handle is connected with the upper portion of the steel wire end head adjusting clamp through the threaded column.

[0020] In the embodiment, a steel wire guide groove 11 is arranged in the flexible calculus crushing outer sleeve 1 corresponding to each calculus crushing steel wire. The steel wire guide groove is used for positioning the calculus crushing steel wire and preventing the calculus crushing ring from being deformed.

[0021] In the embodiment, the steel wire end head adjusting clamp is in a sleeve structure, and is sleeved on the handle seat. The steel wire end head adjusting clamp 6 is provided with upper and lower clamping teeth 62. The handle seat 4 is provided with elastic clamping sheets 41 matched with the clamping teeth. The steel wire end head adjusting clamp 6 is provided with a convex push handle 63. When the push handle is pushed up and down, the elastic clamping sheets are elastically deformed. After adjustment, the clamping teeth and the elastic clamping sheets are clamped to position the steel wire end head adjusting clamp and the handle seat. When used, the steel wire end head adjusting clamp can be pushed to clamp the calculus crushing steel wire to the calculus.

[0022] When the gastric calculus crushing device is used with an endoscope, the calculus is placed in the calculus crushing ring, then the steel wire end head adjusting clamp is pushed, the steel wire end head adjusting clamp drives the calculus crushing steel wire to be tightened to clamp the calculus, then the calculus crushing handle is rotated in a forward direction, the calculus crushing handle is rotated on the steel wire end head adjusting clamp and drives the steel wire to twist to crush the calculus. When the calculus crushing handle is rotated in a reverse direction, the calculus crushing steel wire is reset under the elastic force of the steel wire. The size of the calculus crushing ring can be adjusted through the steel wire end head adjusting clamp, and the gastric calculus crushing device can be adapted to different types and sizes of gastric calculus and has sufficient force and accuracy, and is simple to operate, and can reduce the burden and pain of patients.

[0023] Although the specific embodiments of the present application are described in detail with reference to the drawings, it should not be understood as limiting the scope of protection of the present application. Various modifications and changes made by those skilled in the art within the scope described in the claims are still within the scope of protection of the present application.

Claims

1. A gastric stone crushing device, characterized by: The stone crushing device includes a flexible stone crushing outer sleeve, a stone crushing wire, a rigid steel wire support seat, a rigid handle seat, a stone crushing handle and a steel wire end adjustment card. The steel wire support seat is located at the distal end of the stone crushing outer sleeve. The stone crushing steel wire passes through the stone crushing outer sleeve directly to the distal end of the stone crushing outer sleeve and then bends to form a stone crushing ring with the steel wire support seat. The handle seat is located at the proximal end of the stone crushing outer sleeve. The steel wire end adjustment card is movably provided on the handle seat. The stone crushing handle is sleeved on the upper part of the steel wire end adjustment card. The upper part of the steel wire end adjustment card is provided with a threaded column. The stone crushing handle is provided with an inner screw sleeve that cooperates with the threaded column. The two ends of the steel wire are fixedly connected to the stone crushing handle.

2. A gastric stone crushing device according to claim 1, characterized in that: A steel wire guide groove is provided in the flexible stone crushing outer sleeve corresponding to the stone crushing steel wire.

3. The gastric stone crushing device according to claim 1, characterized in that: The wire end adjustment clamp is a sleeve-shaped structure, and the wire end adjustment clamp is sleeved outside the handle seat.

4. The gastric stone crushing device according to claim 1, characterized in that: The wire end regulating clamp is provided with clamping teeth arranged up and down, and the handle seat is provided with an elastic clamp matched with the clamping teeth.

5. The gastric stone crushing device according to claim 1, characterized in that: The steel wire end adjustment clamp is provided with a raised push handle.

6. The gastric stone crushing device according to claim 1, characterized in that: The stone crushing handle is provided with a steel wire fixing rod for fixing the stone crushing wire.

7. The gastric stone crushing device according to claim 1, characterized in that: The steel wire support seat is glued and connected to the gravel outer casing.

8. The gastric stone crushing device according to claim 1, characterized in that: The rigid handle seat is glued to the gravel outer sleeve.

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