Optical fiber propelling device and flexible ureteroscope
By designing an optical fiber propulsion device including the device body, handle and propulsion block, the problem of cumbersome fiber length adjustment in laser lithotripsy is solved, efficient and precise adjustment of the optical fiber length is achieved, the surgical process is simplified and surgical efficiency is improved .
Patent Information
- Application Number
- CN202420562912.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-21
AI Technical Summary
In laser lithotripsy, medical staff need to manually adjust the length of the fiber, which is cumbersome and affects the efficiency of the surgery.
An optical fiber propulsion device is designed, including the device body, handle and propulsion block. By pulling the handle, the push block can be driven to move, and the clamp can accurately adjust the fiber length.
It realizes efficient and precise adjustment of fiber length, simplifies the surgical process and improves surgical efficiency.
Smart Images
Figure CN222516825U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a fiber optic propulsion device and a ureteroscope. Background Art
[0002] Laser lithotripsy is a common method for treating urinary stones. It uses laser technology to break the stones into small particles so that they can be excreted from the body through the urinary tract. During laser lithotripsy, the doctor inserts a thin laser fiber into the ureteroscope (or cystoscope), and inserts it into the urethra and bladder along the insertion part of the soft scope until it reaches the location of the stone. The doctor then uses the high-energy laser beam generated by the laser to accurately irradiate the stone, gradually breaking the stone into small particles. These small particles are relatively small and can be more easily excreted from the body through the urinary system.
[0003] The front end of the laser fiber will be damaged during the lithotripsy process. Therefore, when performing laser lithotripsy, medical staff will occasionally manually advance the laser fiber so that the laser fiber can reach the stone. However, when medical staff manually advance the laser fiber, they need to first loosen the clamp that fixes the fiber, then manually advance the fiber, and finally lock the clamp. During this period, if the fiber is advanced too much or too little, it needs to be readjusted. The process is cumbersome and affects the progress of the operation.
[0004] Therefore, the above-mentioned technical defects need to be changed urgently. Utility Model Content
[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a fiber optic propulsion device and a ureteroscope, which are intended to help medical staff efficiently and accurately adjust the length of the optical fiber during laser lithotripsy.
[0006] In order to solve the above technical problems, the first aspect of the embodiment of the present application provides an optical fiber advancing device for advancing an optical fiber into a flexible endoscope, comprising:
[0007] The device body is provided with a slide groove and a first through hole, the extension direction of the slide groove is the same as the extension direction of the first through hole, a connecting portion is provided at one end of the first through hole, the device body is fixed on the soft lens through the connecting portion, and a connecting shaft is provided on the outer side wall of the device body;
[0008] A handle, one end of which is movably connected to the connecting shaft;
[0009] and a push block, the push block is slidably connected in the slide groove, the push block is provided with a second through hole running through both ends thereof, the axis of the first through hole is the same as the axis of the second through hole, and a clamping member is provided in the push block, and the clamping member is used to clamp the optical fiber;
[0010] Among them, a propulsion rod is movably connected to the handle, and a connecting rod is movably connected to the end of the propulsion rod away from the handle. The connecting rod is used to connect the propulsion rod and the propulsion block, and there is an acute angle between the connecting rod and the propulsion rod; the handle has a propulsion state that moves the propulsion block toward the connection part, and a reset state that moves the propulsion block away from the connection part.
[0011] In a possible implementation, a first accommodating groove is provided on a side of the push block close to the connecting rod, the first accommodating groove extends to the second through hole, the clamping member is slidably connected in the first accommodating groove, and two ends of the clamping member face the connecting rod and the second through hole respectively;
[0012] When the handle is in the pushing state, the connecting rod abuts against one end of the clamping member, so that the other end of the clamping member abuts against the optical fiber, and the clamping member and the pushing block form a clamping structure.
[0013] In a possible implementation, a first return spring is disposed in the first receiving groove, and two ends of the first return spring respectively abut against the first receiving groove and the clamping member to keep the clamping member away from the second through hole.
[0014] In a possible implementation, a buffer is provided at one end of the clamping member close to the connecting rod, and a first friction plate is provided at one end of the clamping member close to the second through hole.
[0015] In a possible implementation, a second reset spring is provided on the connecting shaft, and the second reset spring is used to keep the handle in a reset state.
[0016] In a possible implementation, a fixing member is provided on the device body, the fixing member is used to fix the optical fiber, a second accommodating groove is provided on the side wall of the device body, the second accommodating groove extends in the direction of the first through hole, the fixing member is slidably connected in the second accommodating groove, and one end of the fixing member is movably connected to the handle;
[0017] When the handle is in the reset state, the handle abuts against the fixing member, so that an end of the fixing member away from the handle abuts against the optical fiber.
[0018] In a possible implementation manner, a second friction plate is disposed at one end of the fixing member close to the first through hole.
[0019] A second aspect provides a flexible ureteroscope, comprising:
[0020] The soft mirror body includes a handle part and an insertion part. The handle part is provided with an operating device, and the operating device is used to control the bending of the end of the insertion part;
[0021] And the optical fiber pushing device as described in any embodiment of the first aspect, the optical fiber pushing device is detachably connected to the handle portion through a connecting portion, the first through hole on the device body is connected to the insertion portion, the optical fiber reaches the end of the insertion portion through the first through hole, and the optical fiber pushing device is used to adjust the length of the optical fiber inserted into the insertion portion.
[0022] Compared with the prior art, the present application provides a fiber optic propulsion device and a flexible ureteroscope. The handle of the present application has a propulsion state that moves the propulsion block toward the connection part, and a reset state that moves the propulsion block away from the connection part. When medical staff need to push the optical fiber forward, they only need to pull the handle. At this time, the handle drives the connecting rod to abut against the clamping member, causing the clamping member to displace and abut against the optical fiber, and at the same time, the propulsion rod drives the propulsion block to move toward the connection part. When performing laser lithotripsy, it can help medical staff to efficiently and accurately adjust the length of the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 is a schematic diagram of the overall structure of an optical fiber propulsion device provided in this embodiment;
[0025] Figure 2 is a cross-sectional view of an optical fiber propulsion device provided in this embodiment;
[0026] Figure 3 is an exploded schematic diagram of an optical fiber propulsion device provided in this embodiment;
[0027] Figure 4 is a cross-sectional view of a propulsion block of an optical fiber propulsion device provided in this embodiment;
[0028] Figure 5 It is a schematic diagram of the overall structure of a flexible ureteroscope provided in this embodiment.
[0029] In the figure: 1. device body; 11. slide groove; 12. first through hole; 13. connecting part; 14. connecting shaft; 141. second return spring; 15. fixing member; 151. second friction plate; 16. second accommodating groove; 2. handle; 21. push rod; 22. connecting rod; 3. push block; 31. second through hole; 32. clamping member; 321. buffer member; 322. first friction plate; 33. first accommodating groove; 34. first return spring; 4. soft mirror body; 41. handle part; 42. operating device; 43. insertion part; 5. optical fiber. DETAILED DESCRIPTION
[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.
[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0033] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.
[0034] On the one hand, this solution provides Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in the first aspect, there is provided an optical fiber 5 pushing device for adjusting the length of the optical fiber 5 entering the insertion part 43 of the soft mirror, which includes: a device body 1, a handle 2 and a pushing block 3, the device body 1 is provided with a slide groove 11 and a first through hole 12 extending therethrough, the extension direction of the slide groove 11 is the same as the extension direction of the first through hole 12, a connecting portion 13 is provided at one end of the first through hole 12, the connecting portion 13 can be a threaded connection structure, and can also be a snap-on structure, the device body 1 is fixed to the soft mirror through the connecting portion 13, and a connecting shaft 14 is provided on the outer side wall of the device body 1, specifically, the connecting shaft 14 is perpendicular to the first through hole 12; one end of the handle 2 is movably connected to the connecting shaft 14; the pushing block 3 is slidably connected in the slide groove 11, and the pushing block 3 is provided with a second through hole 31 extending therethrough at both ends, the axis of the first through hole 12 is the same as the axis of the second through hole 31, in some embodiments, the first through hole 12 and the second through hole 31 have the same size, and a clamping member 32 is provided in the pushing block 3, and the clamping member 32 is used to clamp the optical fiber 5;
[0035] The handle 2 is movably connected with a push rod 21, and the end of the push rod 21 away from the handle 2 is movably connected with a connecting rod 22, which is used to connect the push rod 21 and the push block 3, and there is an acute angle between the connecting rod 22 and the push rod 21; the handle 2 has a push state in which the push block 3 moves toward the connection portion 13, and a reset state in which the push block 3 is away from the connection portion 13. Specifically, there is an acute angle between the push rod 21 and the handle 2, with the opening facing the connection portion 13. When the handle 2 is pulled (pushing state), the angle between the push rod 21 and the handle 2 becomes smaller, and the end of the push rod 21 close to the push block 3 will extend toward the connection portion 13, thereby achieving the effect of pushing the push block 3. During this period, the push rod 21 first pushes the connecting rod 22, and the connecting rod 22 is pushed by the push rod 21 to move toward the clamping member 32, thereby causing the clamping member 32 to abut against the optical fiber 5, thereby achieving the effect of clamping the optical fiber 5. At this time, the optical fiber 5 is fixedly connected to the push block 3. When the pushing block 3 moves toward the connecting portion 13 , the optical fiber 5 is driven to move simultaneously.
[0036] It should be noted that the front end of the laser optical fiber 5 will be damaged during the lithotripsy process. Therefore, when performing laser lithotripsy, medical staff will occasionally manually advance the laser optical fiber 5 so that the laser optical fiber 5 can reach the stone. However, when the medical staff manually advances the laser optical fiber 5, they need to first loosen the clamp 32 that fixes the optical fiber 5, then manually advance the optical fiber 5, and finally lock the clamp 32. During this period, if the optical fiber 5 is advanced too much or too little, it needs to be readjusted, which is a cumbersome process that affects the progress of the operation.
[0037] The handle 2 of the present application has a pushing state that moves the pushing block 3 toward the connection portion 13, and a resetting state that moves the pushing block 3 away from the connection portion 13. When the medical staff needs to push the optical fiber 5 forward, they only need to pull the handle 2, and the handle 2 drives the connecting rod 22 to abut against the clamping member 32, so that the clamping member 32 is displaced and abuts against the optical fiber 5, and the pushing rod 21 drives the pushing block 3 to move toward the connection portion 13. When performing laser lithotripsy, it can help medical staff to efficiently and accurately adjust the length of the optical fiber 5.
[0038] Further, such as Figure 2 , Figure 4 As shown, a first accommodating groove 33 is provided on one side of the pushing block 3 close to the connecting rod 22, and the first accommodating groove 33 extends to the second through hole 31. The clamping member 32 is slidably connected in the first accommodating groove 33, and the two ends of the clamping member 32 are respectively facing the connecting rod 22 and the second through hole 31; when the handle 2 is in the pushing state, the connecting rod 22 abuts against one end of the clamping member 32, so that the other end of the clamping member 32 abuts against the optical fiber 5, and the clamping member 32 and the pushing block 3 form a clamping structure.
[0039] Further, such as Figure 3 , Figure 4 As shown, a first return spring 34 is provided in the first receiving groove 33, and the two ends of the first return spring 34 abut against the first receiving groove 33 and the clamping member 32, respectively, so as to keep the clamping member 32 away from the second through hole 31. It can be understood that when the handle 2 is in the reset state, under the action of the first return spring 34, there is a gap between the clamping member 32 and the optical fiber 5, and the friction between the second through hole 31 and the optical fiber 5 is smaller than the friction between the software body and the optical fiber 5. Therefore, the push block 3 can be moved in a direction away from the connecting portion 13 to achieve reset, and the push block 3 will not pull the optical fiber 5 back during the reset process, so as to push the optical fiber 5 next time.
[0040] Further, such as Figure 2 , Figure 4 As shown, a buffer 321 is provided at one end of the clamping member 32 close to the connecting rod 22, and a first friction sheet 322 is provided at one end of the clamping member 32 close to the second through hole 31. It can be understood that the buffer 321 can buffer the pressure between the connecting rod 22 and the clamping member 32 to prevent the clamping member 32 from exerting too much pressure on the optical fiber 5 and damaging the optical fiber 5 when the handle 2 is pulled to the most extreme position. In addition, the first friction sheet 322 can increase the friction between the clamping member 32 and the optical fiber 5, so that the clamping member 32 can better clamp and fix the optical fiber 5.
[0041] Further, such as Figure 2 , Figure 3As shown, a second return spring 141 is provided on the connecting shaft 14, and the second return spring 141 is used to keep the handle 2 in the reset state. In this embodiment, the second return spring 141 is sleeved on the connecting shaft 14. In other embodiments, the second return spring 141 can be provided at other positions as long as the handle 2 can be reset.
[0042] Further, such as Figure 2 , Figure 3 As shown, a fixing member 15 is provided on the device body 1, and the fixing member 15 is used to fix the optical fiber 5. A second accommodating groove 16 is opened on the side wall of the device body 1, and the second accommodating groove 16 extends in the direction of the first through hole 12. The fixing member 15 is slidably connected in the second accommodating groove 16, and one end of the fixing member 15 is movably connected to the handle 2; when the handle 2 is in a reset state, the handle 2 abuts against the fixing member 15, so that the end of the fixing member 15 away from the handle 2 abuts against the optical fiber 5.
[0043] Further, such as Figure 2 , Figure 3 As shown, a second friction sheet 151 is disposed at one end of the fixing member 15 close to the first through hole 12. It is understandable that the second friction sheet 151 can increase the friction between the fixing member 15 and the optical fiber 5, so that the fixing member 15 can better clamp and fix the optical fiber 5.
[0044] The second aspect of the present application provides Figure 5 A flexible ureteroscope is shown, comprising:
[0045] The soft mirror body 4 and the optical fiber propulsion device as described in any embodiment of the first aspect, the soft mirror body 4 includes a handle portion 41 and an insertion portion 43, the handle portion 41 is provided with an operating device 42, the operating device 42 is used to control the bending of the end of the insertion portion 43; the optical fiber propulsion device is detachably connected to the handle portion 41 through the connecting portion 13, the first through hole 12 on the device body 1 is connected to the insertion portion 43, the optical fiber 5 reaches the end of the insertion portion 43 through the first through hole 12, and the optical fiber propulsion device is used to adjust the length of the optical fiber 5 inserted into the insertion portion 43.
[0046] Specifically, a camera and a lighting device are provided at the end of the insertion portion 43; in one embodiment, a display device and a liquid delivery component are provided on the handle portion 41, the display device is used to display the image of the camera, the liquid delivery component is connected to the insertion portion 43 pipeline, and the liquid delivery component is used to deliver liquid to the insertion portion 43. Among them, the display device is preferably a touch-type liquid crystal display. The operating device 42 may include buttons, joysticks, etc. The display device may be integrally formed with the handle portion 41, and the two may also be movably connected (so that medical staff can adjust the pitch angle or left and right angle of the display device as needed).
[0047] It can be understood that the specific function of the operating device 42 in this embodiment to control the bending of the end of the insertion portion 43 can be obtained by those skilled in the art based on the prior art, and the structure and working principle of the operating device 42 will not be described in detail here.
[0048] In summary, the present application provides an optical fiber 5 advancement device and a ureteroscope. The handle 2 of the present application has an advancement state that moves the advancement block 3 toward the connection portion 13, and a reset state that moves the advancement block 3 away from the connection portion 13. When medical staff need to advance the optical fiber 5 forward, they only need to pull the handle 2. At this time, the handle 2 drives the connecting rod 22 to abut against the clamping member 32, so that the clamping member 32 is displaced and abuts against the optical fiber 5, and the advancement rod 21 drives the advancement block 3 to move toward the connection portion 13. When performing laser lithotripsy, it can help medical staff to efficiently and accurately adjust the length of the optical fiber 5.
[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. An optical fiber advancing device for advancing an optical fiber into a flexible endoscope, characterized in that: include: A device body, wherein the device body is provided with a slide groove and a first through hole, the extension direction of the slide groove is the same as the extension direction of the first through hole, a connecting portion is provided at one end of the first through hole, the device body is fixed to the soft lens through the connecting portion, and a connecting shaft is provided on the outer side wall of the device body; A handle, one end of which is movably connected to the connecting shaft; and a push block, the push block is slidably connected in the slide groove, the push block is provided with a second through hole penetrating through both ends thereof, the axis of the first through hole is the same as the axis of the second through hole, and a clamping member is provided in the push block, and the clamping member is used to clamp the optical fiber; The handle is movably connected to a propulsion rod, and one end of the propulsion rod away from the handle is movably connected to a connecting rod, the connecting rod is used to connect the propulsion rod and the propulsion block, and an acute angle is formed between the connecting rod and the propulsion rod; the handle has a propulsion state for moving the propulsion block toward the connecting part, and a reset state for moving the propulsion block away from the connecting part.
2. The optical fiber propulsion device according to claim 1, characterized in that: A first receiving groove is formed on one side of the pushing block close to the connecting rod, the first receiving groove extends to the second through hole, the clamping member is slidably connected in the first receiving groove, and two ends of the clamping member face the connecting rod and the second through hole respectively; When the handle is in the pushing state, the connecting rod abuts against one end of the clamping member, so that the other end of the clamping member abuts against the optical fiber, and the clamping member and the pushing block form a clamping structure.
3. The optical fiber propulsion device according to claim 2, characterized in that: A first return spring is disposed in the first accommodating groove, and two ends of the first return spring are respectively abutted against the first accommodating groove and the clamping member to keep the clamping member away from the second through hole.
4. The optical fiber propulsion device according to claim 1, characterized in that: A buffer is disposed on one end of the clamping member close to the connecting rod, and a first friction plate is disposed on one end of the clamping member close to the second through hole.
5. The optical fiber propulsion device according to claim 1, characterized in that: The connecting shaft is provided with a second return spring, and the second return spring is used to keep the handle in a return state.
6. The optical fiber propulsion device according to claim 1, characterized in that: The device body is provided with a fixing member, the fixing member is used to fix the optical fiber, a second accommodating groove is opened on the side wall of the device body, the second accommodating groove extends in the direction of the first through hole, the fixing member is slidably connected in the second accommodating groove, and one end of the fixing member is movably connected to the handle; When the handle is in a reset state, the handle abuts against the fixing member, so that an end of the fixing member away from the handle abuts against the optical fiber.
7. The optical fiber propulsion device according to claim 6, characterized in that: A second friction plate is disposed at one end of the fixing member close to the first through hole.
8. A flexible ureteroscope, characterized in that: include: A soft mirror body, the soft mirror body comprising a handle portion and an insertion portion, the handle portion being provided with an operating device, the operating device being used to control the bending of the end portion of the insertion portion; And an optical fiber propulsion device as described in any one of claims 1-7, wherein the optical fiber propulsion device is detachably connected to the handle portion via a connecting portion, a first through hole on the device body is connected to the insertion portion, the optical fiber reaches the end of the insertion portion through the first through hole, and the optical fiber propulsion device is used to adjust the length of the optical fiber inserted into the insertion portion.