Endoscopic coprophilith crushing device
By designing an endoscopic fecal lithotripsy device and using an openable and closable head to bluntly separate fecal stones, the problems of low lithotripsy efficiency and mucosal damage in the existing technology are solved, and efficient endoscopic minimally invasive treatment is achieved.
Patent Information
- Application Number
- CN202421741567.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Existing endoscopic fecal lithotripsy methods have problems such as low lithotripsy efficiency, insufficient operating space, inability of instruments to effectively capture fecal stones, and insufficient bite force of foreign body forceps, which lead to failure of small intestinal lithotripsy and the risk of mucosal damage.
An endoscopic fecal lithotripsy device was designed. The device uses an openable and closable head to insert into the fecal stone and open it, using blunt force to separate the solid fecal stone. Combined with other instruments, it can be operated multiple times until the fecal stone is completely broken up to avoid mucosal damage.
It improves the efficiency of lithotripsy and reduces the risk of mucosal damage. It is suitable for minimally invasive treatment under endoscopy, avoiding surgical operations, and is suitable for situations such as fecal stone retention, incarceration, and obstruction in the digestive tract.
Smart Images
Figure CN223392501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an endoscopic fecal stone crushing device. Background Art
[0002] Fecal stones in the digestive tract are relatively common clinically, often caused by dietary factors. The difficulty of treatment varies depending on the location of the digestive tract. Fecal stones in the upper digestive tract or colon can often be treated with endoscopic lithotripsy, using tools that primarily rely on physical crushing. However, when fecal stones are located in the small intestine, they often present with symptoms of intestinal obstruction. However, due to anatomical factors, conventional endoscopic surgery cannot reach the obstructed area, so small enteroscopy is often used to reach this area.
[0003] The current method of endoscopic fecal stone crushing mainly involves using a snare, lithotripter, or other foreign body forceps to trap or clamp the fecal stone, physically cutting and clamping it until the feces is broken into small pieces and smoothly discharged from the digestive tract. There are the following technical drawbacks: 1. Low lithotripsy efficiency. Most fecal stones are hard, and the wire cutting and clamping forces are insufficient, resulting in low lithotripsy efficiency. 2. When a fecal stone is impacted, there is insufficient space in the digestive tract for the snare or lithotripter to release, making it impossible to effectively trap the fecal stone for crushing, which often leads to small intestinal lithotripsy failure. 3. Conventional foreign body forceps are too long to extend through the small intestinal endoscopic biopsy port, resulting in insufficient bite and crushing capacity, making them limited in effectiveness for large fecal stones. 4. When the operating space is poorly visible, blind clamping can easily damage the normal mucosa.
[0004] Therefore, how to design an endoscopic fecal lithotripsy device that can achieve good lithotripsy effect has become an urgent problem to be solved. Utility Model Content
[0005] In view of the problems existing in the prior art, the present invention provides an endoscopic fecal stone crushing device to solve at least one of the above technical problems.
[0006] The technical solution of the utility model is: an endoscopic fecal stone crushing device, comprising an outer tube, an insertion section arranged inside the outer tube, the outer tube being connected to a handle, a movable slider being arranged on the handle, the movable slider controlling the insertion end to be conical or radial, the head end of the insertion section being able to insert the fecal stone, the movable slider at the handle causing the insertion part of the insertion section to open radially, and dragging it toward the mouth side to bluntly separate the solid fecal stone.
[0007] The utility model adopts an openable and closable head end. When the head end is closed, fecal stones can be inserted, and the handle slider is pulled to open the device inside the fecal stone, and then dragged in the opposite direction to bluntly separate the solid fecal stone. The operation can be repeated many times and used in combination with other instruments until the fecal stone is completely broken, achieving a good stone crushing effect in endoscopic lithotripsy. The endoscopic fecal stone crushing device changes the way of stone crushing, inserts the instrument into the inside of the fecal stone and opens it, destroying the structure and morphology of the fecal stone in a blunt manner. The instrument can always be controlled within the field of view, which is convenient to control and avoids damage to normal mucosa, improves the stone crushing efficiency, and is more conducive to endoscopic minimally invasive treatment, avoiding surgical operations, and is suitable for endoscopic treatment of gastrointestinal fecal stone retention, incarceration, obstruction and other conditions that can be treated conservatively by internal medicine. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic diagram of the installation structure of the utility model.
[0009] Figure 2 This is a structural schematic diagram of the utility model of inserting a cone-shaped structure into a fecal stone.
[0010] Figure 3 This is a schematic diagram of the structure of the Y-shaped structure for blunt separation of solid fecal stones in the present invention.
[0011] Figure 4 It is a schematic cross-sectional view of the insertion section 1 of the present invention when the head end is opened.
[0012] In the figure: 1. Insertion section; 2. Outer tube; 4. Moving slider; 5. Handle; 6. Conical structure; 7. Y-shaped structure. DETAILED DESCRIPTION
[0013] The present invention will be further described below with reference to the accompanying drawings.
[0014] See Figure 1-4 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. They are not used to limit the conditions for the implementation of this utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.
[0015] Example 1: An endoscopic fecal stone crushing device, referring to Figure 1, including an outer tube 2, an insertion section 1 is arranged inside the outer tube 2, the outer tube 2 is connected to a handle 5, and a movable slider 4 is provided on the handle 5. The movable slider 4 controls the insertion end 1 to be conical or radial, and the head end of the insertion section 1 can be inserted into the fecal stone. The slider 4 is moved at the handle 5 to make the insertion point of the insertion section 1 open radially and drag it toward the mouth side to bluntly separate the solid fecal stone. The utility model adopts an openable and closable head end. When the head end is closed, fecal stones can be inserted, and the handle slider is pulled to open the device inside the fecal stone, and then dragged in the opposite direction to bluntly separate the solid fecal stone. The operation can be repeated many times and used in combination with other instruments until the fecal stone is completely broken, achieving a good stone crushing effect in endoscopic lithotripsy. The endoscopic fecal stone crushing device changes the way of stone crushing, inserts the instrument into the inside of the fecal stone and opens it, destroying the structure and morphology of the fecal stone in a blunt manner. The instrument can always be controlled within the field of view, which is convenient to control and avoids damage to normal mucosa, improves the stone crushing efficiency, and is more conducive to endoscopic minimally invasive treatment, avoiding surgical operations, and is suitable for endoscopic treatment of gastrointestinal fecal stone retention, incarceration, obstruction and other conditions that can be treated conservatively by internal medicine.
[0016] Example 2: Based on Example 1, refer to Figure 2 When the head end of the insertion section 1 is closed, the cross section is a pointed cone-shaped structure 6, which can be inserted into the fecal stone. The utility model adopts the head end in a closed state with a pointed cone-shaped cross section, which can be easily inserted into the fecal stone when the head end is closed, solving the technical defect of the prior art that when the fecal stone is impacted, there is insufficient space in the digestive tract, and the snare and lithotripter have no effective space to release, making it impossible to effectively trap the fecal stone for lithotripsy.
[0017] Example 3: Based on Example 1, refer to Figure 4 When the head end of the insertion section 1 is opened, the cross section is a radial Y-shaped structure 7, and the Y-shaped structure 7 can bluntly separate solid fecal stones. The utility model adopts the head end in the open state with a Y-shaped cross section. When the head end is opened, the Y-shaped structure has a certain rigidity and can bluntly separate solid fecal stones without deformation due to the hardness of the fecal stones. This solves the technical defects of the existing technology that the stone crushing efficiency is low, most fecal stones are hard, and the wire cutting force and clamping force are insufficient, resulting in low stone crushing efficiency.
[0018] Example 4: Based on Example 3, refer to Figure 3 The three extension arms of the Y-shaped structure 7 have a certain support strength, and the angle between the three extension arms is 45° to 60°. The utility model adopts a radial Y-shaped structure, and the three extension arms can conveniently separate solid fecal stones bluntly without deformation caused by the hardness of the fecal stones.
[0019] Example 5: Based on Example 1, the length of the head end of the insertion section 1 is 1 cm.
[0020] Example 6: Based on Example 1, the length of the steel wire assembly of the insertion section 1 is greater than 250 cm and the diameter is less than 2.6 mm. This utility model uses a steel wire greater than 250 cm in length to solve the technical defect that conventional foreign body forceps are too long to extend through the small intestinal endoscopic biopsy channel.
[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. An endoscopic fecal lithotripsy device, comprising an outer tube (2), an insertion section (1) being provided in the outer tube (2), and characterized in that: The outer tube (2) is connected to a handle (5), and a movable slider (4) is provided on the handle (5). The movable slider (4) controls the insertion section (1) to be in a pointed cone shape or in a radial shape. The head end of the insertion section (1) can be inserted into the fecal stone. The movable slider (4) at the handle (5) causes the insertion portion of the insertion section (1) to open radially and drag it toward the mouth side, thereby bluntly separating the solid fecal stone. When the head end of the insertion section (1) is closed, the cross section is a pointed cone-shaped structure (6), and the pointed cone-shaped structure (6) can be inserted into the fecal stone; When the head end of the insertion section (1) is opened, the cross section is a radial Y-shaped structure (7), the Y-shaped structure (7) is rigid, and the Y-shaped structure (7) can bluntly separate solid fecal stones; The length of the steel wire assembly of the insertion section (1) is greater than 250 cm and the diameter is less than 2.6 mm.
2. The endoscopic fecal stone crushing device according to claim 1, characterized in that: The angles between the three extending arms of the Y-shaped structure (7) are 45° to 60°.
3. The endoscopic fecal stone crushing device according to claim 1, characterized in that: The length of the head end of the insertion section (1) is 1 cm.