Endoscopic lithotripter
By introducing guide sliders, limit structures and lubricating materials into the endoscopic gravel tools, the problem of inconvenient movement of the core strip in the gravel instrument is solved, and efficient and stable gravel operation is achieved to adapt to the gravel needs of different stone sizes.
Patent Information
- Application Number
- CN202421511524.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In existing endoscopic gravel tools, the inner core of the gravel is inconvenient to move and is easily stuck. The adjustment speed is slow during the process of sending the inner core, which affects the efficiency and effect of the gravel.
An endoscopic gravel tool is designed, using a guide slider and limit structure in the core feeding channel, combining the traction part and the anti-slip layer to ensure the movement stability of the core strip. The guide slider is remotely controlled by the rotating head, and the use of medical stainless steel and lubricating materials to improve operation convenience and stability.
It significantly improves the smoothness and stability of core strip movement, reduces lag, extends the equipment life, enhances the flexibility and efficiency of gravel operation, and adapts to the gravel needs of stones of different sizes.
Smart Images
Figure CN223054512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to an endoscopic lithotripsy. Background Art
[0002] Gastrolithiasis is a common stomach disease caused by the coagulation of certain plant components or minerals in the stomach. This disease can cause patients to experience symptoms such as upper abdominal discomfort, loss of appetite, nausea, and vomiting, which seriously affects the patient's quality of life. Endoscopic lithotripsy is usually performed by inserting a lithotripsy instrument through the biopsy hole during an endoscopic examination to crush the stones in the stomach into small pieces, which are then excreted from the body through the pylorus. This method is relatively easy to operate, low in cost, and simple to use. However, in current endoscopic lithotripsy, the inner core of the lithotripsy is often difficult to move and is easily stuck. The adjustment speed is slow during the delivery of the inner core, which affects the efficiency and effect of lithotripsy. Utility Model Content
[0003] In view of the defects in the prior art, the utility model provides an endoscopic lithotripter.
[0004] An endoscopic lithotripter comprises an endoscopic component, the endoscopic component comprises a handle portion and an extension portion connected to the handle portion, the handle portion side wall is provided with a core feeding port, the extension portion is provided with a core feeding channel, the core feeding port is connected to the core feeding channel, a first core bar and a second core bar are passed through the core feeding port, and the ends of the first core bar and the second core bar are connected as a whole; wherein, a guide slider capable of moving along the core feeding channel is provided inside the core feeding channel, a first through hole is provided in the center of the guide slider, the first core bar and the second core bar are passed through the first through hole, a limiting structure is provided at the bottom of the core feeding channel, the limiting structure is used to block the guide slider, the ends of the first core bar and the second core bar pass through the limiting structure and surround a lithotripsy area.
[0005] Preferably, the handle is also provided with a traction part for lifting and pulling the guide slider. The setting of the traction part enables the operator to control the position of the guide slider in the core feeding channel. When the core feeding reaches a certain extent, the first core bar and the second core bar at the top of the core feeding channel may be curled and mixed, and the guide slider at the bottom of the core feeding channel needs to be re-pulled to the upper half to ensure the movement stability of the first core bar and the second core bar and the overall stone crushing efficiency.
[0006] Preferably, the traction part includes a traction line and a rotating head for controlling the movement of the traction line, and the traction line is connected to the guide slider. By operating the rotating head to control the movement of the traction line, remote control of the guide slider can be achieved, and this design makes the operation more convenient.
[0007] Preferably, the diameter of the first through hole is larger than the sum of the diameters of the first core bar and the second core bar. This can ensure that the first core bar and the second core bar have sufficient space to pass through the guiding slider. At the same time, this difference should not be too large, so as to avoid the inability of the first core bar and the second core bar to have relative sliding with the guiding slider, and also avoid the easy generation of relative sliding between the first core bar and the second core bar and the guiding slider.
[0008] Preferably, an anti-slip layer is provided on the inner wall of the core feeding port. The setting of the anti-slip layer increases the friction between the inner wall of the core feeding port and the core bar, improves the stability of core feeding and pulling, and is not prone to sudden large-scale movement.
[0009] Preferably, the limiting structure includes a limiting convex ring protruding from the inner wall of the bottom of the core feeding channel. The limiting convex ring effectively blocks the guiding slider.
[0010] Preferably, the first core bar and the second core bar are made of medical stainless steel material. The medical stainless steel material has good corrosion resistance and mechanical strength, and is suitable for making medical devices, such as medical grade stainless steel 17-4PH.
[0011] Preferably, a lubricating material is coated inside the core feeding channel. The coating of the lubricating material reduces the friction between the core bar and the guiding slider when moving in the core feeding channel, making the movement of the core bar and the guiding slider smoother; the lubricating material can be medical silicone oil, vegetable oil, etc.
[0012] The beneficial effects of the present utility model are embodied in:
[0013] In the present utility model, when the first core bar and the second core bar move inside the core feeding channel, they will drive the guiding slider to move together. This design significantly reduces the direct contact between the core bar and the inner wall of the core feeding channel, thereby reducing friction. This not only makes the movement of the core bar smoother, reduces the possibility of jamming, but also extends the service life of the device; further, the guiding slider can limit the first core bar and the second core bar to ensure that the first core bar and the second core bar always remain in order during the movement, avoiding coiling or mixing, and greatly improving the stability and reliability of the operation; further, due to the significant improvement in the smoothness and stability of the movement of the core bar, the operator can more easily complete the core feeding process, thereby improving the efficiency of forming the gravel area. When the first core bar and the second core bar reach the limiting structure and the guiding slider abuts against the limiting structure, continuing to feed the core will cause the first core bar and the second core bar to pass through the limiting structure to form a gravel area. At this time, continuing to feed the core will increase the length of the first core bar and the second core bar passing through the limiting structure, thereby increasing the area of the gravel area, making the gravel operation flexible and efficient; further, by adjusting the length of the core bar, the size of the gravel area can be dynamically changed to adapt to stones of different sizes. When moving the entire extension part and placing the stone to be crushed in the gravel area, by pulling the first core bar and the second core bar outwards, a sufficient shear force can be formed to achieve gravel crushing. Description of the Drawings
[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.
[0015] Figure 1 Structural schematic diagram of a part of the present utility model;
[0016] Figure 2 For the present utility model Figure 1 Enlarged structural view of part A.
[0017] Reference numerals:
[0018] 1 - handle part, 2 - extension part, 21 - core feeding channel, 3 - core feeding port, 4 - traction part, 41 - traction wire, 42 - rotating head, 5 - first core bar, 6 - second core bar, 7 - guiding slider, 8 - limiting structure, 81 - limiting convex ring, 9 - gravel area. Detailed Description of the Invention
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.
[0022] As Figure 1 and Figure 2 shown, an endoscopic lithotripter includes an endoscopic assembly. The endoscopic assembly includes a handle portion 1 and an extension portion 2 connected to the handle portion 1. A core delivery port 3 is provided on the side wall of the handle portion 1. A core delivery channel 21 is formed inside the extension portion 2. The core delivery port 3 is connected to the core delivery channel 21. A first core bar 5 and a second core bar 6 are inserted through the core delivery port 3. The ends of the first core bar 5 and the second core bar 6 are integrally connected. Among them, a guiding slider 7 capable of moving along the core delivery channel 21 is provided inside the core delivery channel 21. A first through hole is formed in the center of the guiding slider 7. The first core bar 5 and the second core bar 6 are inserted through the first through hole. A limiting structure 8 is provided at the bottom of the core delivery channel 21. The limiting structure 8 is used to block the guiding slider 7. The ends of the first core bar 5 and the second core bar 6 pass through the limiting structure 8 and enclose a lithotripsy area 9.
[0023] In this embodiment, it should be noted that when the first core strip 5 and the second core strip 6 move inside the core feeding channel 21, they will drive the guiding slider 7 to move together. This design significantly reduces the direct contact between the core strip and the inner wall of the core feeding channel 21, thereby reducing friction. This not only makes the movement of the core strip smoother, reduces the possibility of jamming, but also extends the service life of the device; further, the guiding slider 7 can limit the first core strip 5 and the second core strip 6, ensuring that the first core strip 5 and the second core strip 6 always remain orderly during the movement, avoiding curling or mixing, and greatly improving the stability and reliability of the operation; further, due to the significant improvement in the smoothness and stability of the core strip movement, the operator can more easily complete the core feeding process, thereby improving the efficiency of forming the gravel area 9. When the first core strip 5 and the second core strip 6 reach the limiting structure 8 and the guiding slider 7 abuts against the limiting structure 8, continuing to feed the core will cause the first core strip 5 and the second core strip 6 to pass through the limiting structure 8 to form the gravel area 9. At this time, continuing to feed the core will increase the length of the first core strip 5 and the second core strip 6 passing through the limiting structure 8, thereby increasing the area of the gravel area 9 and making the gravel operation flexible and efficient; further, by adjusting the length of the core strip, the size of the gravel area 9 can be dynamically changed to adapt to stones of different sizes. When the entire extension part 2 is moved and the stone to be crushed is placed in the gravel area 9, by pulling the first core strip 5 and the second core strip 6 outwards, a large enough shearing force can be formed to achieve gravel crushing.
[0024] Specifically, the handle part 1 is further provided with a traction part 4 for lifting and guiding the guiding slider 7.
[0025] In this embodiment, it should be noted that the setting of the traction part 4 enables the operator to control the position of the guiding slider 7 in the core feeding channel 21. When the core feeding reaches a certain level, the first core strip 5 and the second core strip 6 at the top of the core feeding channel 21 may curl and mix, and it is necessary to re-tract the guiding slider 7 at the bottom of the core feeding channel 21 to the upper half to ensure the movement stability of the first core strip 5 and the second core strip 6 and the overall gravel crushing efficiency.
[0026] Specifically, the traction part 4 includes a traction wire 41 and a rotating head 42 for controlling the movement of the traction wire 41, and the traction wire 41 is connected to the guiding slider 7.
[0027] In this embodiment, it should be noted that by operating the rotating head 42 to control the movement of the traction wire 41, remote control of the guiding slider 7 can be achieved, which makes the operation more convenient; at the same time, it is also necessary to ensure that the rotating head 42 does not affect the downward movement of the first core strip 5 and the second core strip 6 with the guiding slider 7 during the normal wire feeding process. For example, relative movement can occur between the rotating head 42 and the traction wire 41 during the downward movement, but relative movement cannot occur between the rotating head 42 and the traction wire 41 during the upward movement. The specific structure can be realized by restricting rotation in a certain direction using a ratchet connection or the like.
[0028] Specifically, the diameter size of the first through hole is larger than the sum of the diameters of the first core strip 5 and the second core strip 6.
[0029] In this embodiment, it should be noted that it can ensure that the first core strip 5 and the second core strip 6 have enough space to pass through the guiding slider 7, and at the same time, this difference cannot be too large. It is necessary to avoid both the inability of the first core strip 5 and the second core strip 6 to generate relative sliding with the guiding slider 7 and the easy generation of relative sliding between the first core strip 5 and the second core strip 6 and the guiding slider 7.
[0030] Specifically, the inner wall of the wire feeding port 3 is provided with an anti-slip layer.
[0031] In this embodiment, it should be noted that the setting of the anti-slip layer increases the friction between the inner wall of the wire feeding port 3 and the core strip, improves the stability of wire feeding and pulling, and is not prone to sudden large-scale movement.
[0032] Specifically, the limiting structure 8 includes a limiting convex ring 81 protruding from the inner wall of the bottom of the wire feeding channel 21.
[0033] In this embodiment, it should be noted that the limiting convex ring 81 effectively blocks the guiding slider 7.
[0034] Specifically, the first core strip 5 and the second core strip 6 are made of medical stainless steel material.
[0035] In this embodiment, it should be noted that the medical stainless steel material has good corrosion resistance and mechanical strength, and is suitable for making medical devices, such as medical grade stainless steel 17-4PH.
[0036] Specifically, the inside of the wire feeding channel 21 is coated with a lubricating material.
[0037] In this embodiment, it should be noted that the coating of the lubricating material reduces the friction between the core strip and the guiding slider 7 when moving in the wire feeding channel 21, making the movement of the core strip and the guiding slider 7 smoother; the lubricating material can be medical silicone oil and vegetable oil, etc.
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.
Claims
1. An endoscopic lithotripter, characterized in that, It includes an endoscopic component, the endoscopic component includes a handle part and an extension part connected to the handle part. A core feeding port is provided on the side wall of the handle part. A core feeding channel is formed inside the extension part. The core feeding port is connected to the core feeding channel. A first core bar and a second core bar are inserted through the core feeding port. The ends of the first core bar and the second core bar are integrally connected; wherein, A guiding slider capable of moving along the core feeding channel is arranged inside the core feeding channel. A first through hole is formed in the center of the guiding slider. The first core bar and the second core bar are inserted through the first through hole. A limiting structure is arranged at the bottom of the core feeding channel. The limiting structure is used to block the guiding slider. The ends of the first core bar and the second core bar pass through the limiting structure and enclose a gravel area.
2. The endoscopic lithotripter according to claim 1, wherein The handle part is further provided with a traction part for lifting and guiding the guiding slider.
3. The endoscopic lithotripter according to claim 2, wherein, The traction part includes a traction wire and a rotating head for controlling the movement of the traction wire. The traction wire is connected to the guiding slider.
4. The endoscopic lithotripter according to claim 1, wherein The diameter of the first through hole is larger than the sum of the diameters of the first core bar and the second core bar.
5. The endoscopic lithotripter according to claim 1, wherein, An anti-slip layer is provided on the inner wall of the core feeding port.
6. The endoscopic lithotripter according to claim 1, wherein The limiting structure includes a limiting convex ring protruding from the inner wall of the bottom of the core feeding channel.
7. The endoscopic lithotripter according to claim 1, characterized in that, The first core bar and the second core bar are made of medical stainless steel material.
8. The endoscopic lithotripter according to claim 1, wherein The inside of the core feeding channel is coated with a lubricating material.