Hard ureteroscope with lubricant diversion and near-infrared light functions
By setting a guide groove on the ureteroscope to inject lubricant and near-infrared light source, the problems of difficult removal of the ureteroscope and unclear vision are solved, lubrication and clear imaging are achieved, and the safety and accuracy of the operation are improved.
Patent Information
- Application Number
- CN202422293054.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Existing rigid ureteroscopes are difficult to remove during surgery, which can easily cause ureteral damage. Traditional white light sources cannot provide a clear surgical field of view, especially when searching for difficult ureters.
A rigid ureteroscope with both lubricant diversion and near-infrared light functions was designed. By setting a diversion groove at the lower end of the sheath to inject lubricant, combined with a near-infrared light source and a camera, lubrication and clear imaging can be achieved, friction can be reduced, and surgical precision can be improved.
The ureteroscope was removed smoothly, reducing the risk of ureteral injury. A clear surgical field of view was provided through a near-infrared light source, improving the safety and accuracy of the operation.
Smart Images
Figure CN223416208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ureteroscopes, in particular to a ureteroscope with both lubricant diversion and near-infrared light functions. Background Art
[0002] A rigid ureteroscope is a medical device used for endoscopic examinations and treatments of the urinary system. It typically consists of a rigid tube with a light source and camera at one end, used to illuminate and visualize the interior of the ureter. Using near-infrared (NIR) light as a light source during rigid ureteroscopic surgery offers several potential benefits over traditional white light.
[0003] Near-infrared light has superior tissue penetration, reducing tissue absorption and scattering, and lowering autofluorescence, thereby providing clearer images and higher signal contrast. Ureteral lesions and certain surgical procedures can be particularly challenging to locate. However, when cells or macromolecules within a living organism are labeled with fluorescent dyes (such as indocyanine green), irradiation with specific wavelengths, such as near-infrared light, can excite these fluorescent materials to emit fluorescence. This emitted fluorescence can then be captured by in vitro optical imaging equipment, forming an optical molecular image. However, near-infrared light is invisible to the human eye, requiring specialized optical imaging systems that use near-infrared fluorophores as contrast agents. When near-infrared light of one wavelength illuminates the surgical field, the surgical field emits near-infrared light of a different wavelength. This emitted near-infrared light allows the precise location of the near-infrared fluorophores. When near-infrared fluorophores are attached to living tissues and organs, the near-infrared light within the surgical field can reveal tissue structure and lesion locations. This is particularly important for these challenging ureteral surgeries, as it helps surgeons more accurately identify the ureter and surrounding tissues, improving surgical precision and safety. Direct lamp replacement is one possible approach to achieving the use of near-infrared light sources. This approach involves replacing the traditional white light lamp with one that emits near-infrared light. Such a modification requires ensuring that the new lamp is compatible with existing rigid ureteroscope systems and can provide sufficient near-infrared light intensity to meet surgical requirements. Furthermore, the endoscope's camera and image processing system must be able to capture both color and near-infrared fluorescence in real time, allowing the surgeon to visualize the anatomical structures of the surgical field while also viewing the near-infrared fluorescence image.
[0004] During surgery, manipulation of the ureter may cause ureteral smooth muscle spasm, or due to ureteral stenosis, calculi, or other factors, it may make it difficult to remove the rigid ureteroscope, commonly known as "holding the scope." At this point, forcible removal of the ureteroscope can often result in ureteral dislodgement, rupture, or even long-segment avulsion.
[0005] In summary, a rigid ureteroscope with both lubricant diversion and near-infrared light functions is proposed. Content of the utility model
[0006] (One) technical problem solved
[0007] In view of the deficiencies of prior art, the utility model provides a ureteral hard mirror with lubricant flow guide and near-infrared light functions to solve the problems in the foregoing background art.
[0008] (Two) technical scheme
[0009] To achieve the above object, the utility model provides the following technical scheme: a ureteral hard mirror with lubricant flow guide and near-infrared light functions, comprising:
[0010] Tube sheath, the right end of the tube sheath is provided with a mirror body, one side of the lower end of the tube sheath is provided with a flow guide groove, and the flow guide groove is integrally formed with the tube sheath;
[0011] Convex strip, set up in the two sides outside the flow guide groove, and the convex strip is connected with the tube sheath;
[0012] Lug, set up in the left side of the upper end of the tube sheath, the left side inside the lug is provided with an illumination optical fiber and a lens, and the left side outside the lug is provided with a transparent protective cover;
[0013] Light beam port, set up in the upper end of the mirror body, the upper end of the mirror body is provided with an ocular lens on the right side of the light beam port.
[0014] Preferably, the upper and lower sides of the left end of the mirror body are provided with limiting holes, and the limiting holes are integrally formed with the mirror body.
[0015] Preferably, the outside of the left side of the mirror body is provided with an outer ring, and the upper and lower sides inside the outer ring are provided with return springs.
[0016] Preferably, the outside of the return spring is provided with a limiting ball, and the limiting ball is connected with the return spring, and the return spring makes the limiting ball have automatic reset property.
[0017] Preferably, the limiting ball is matched with the limiting hole, and the upper and lower sides outside the outer ring are provided with connecting frames, and the limiting ball and the limiting hole are combined to fix the outer ring.
[0018] Preferably, the outside of the connecting frame is provided with a ring, and the ring is connected with the connecting frame, and the ring is used for the finger to pass through to hold the mirror body.
[0019] (Three) beneficial effects
[0020] Compared with prior art, the utility model provides a ureteral hard mirror with lubricant flow guide and near-infrared light functions, and has the following beneficial effects:
[0021] The utility model provides a guide groove for lubricant at the lower end of the sheath, which guides the lubricant to the inner wall of the ureter, thereby lubricating the ureter and the sheath, so as to facilitate the removal of the sheath. The convex strips on both sides of the outside of the guide groove have an arc-shaped surface to prevent the sides of the guide groove from scratching the inner wall mucosa of the ureter. This solution injects lubricant between the ureteroscope body and the ureteral wall, which can reduce the friction between the ureteroscope and the ureteral mucosa, thereby allowing the ureteroscope to be smoothly removed, solving the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;
[0023] Figure 2 This is a cross-sectional view of the outer ring structure of the utility model;
[0024] Figure 3 This is an enlarged view of the sheath end structure of the utility model;
[0025] Figure 4 For the utility model Figure 3 A partial enlarged view of area A in the middle;
[0026] Figure 5 It is a three-dimensional diagram of the mirror structure of the present utility model.
[0027] In the figure: 1. Sheath; 2. Body; 3. Eyepiece; 4. Light guide port; 5. Outer ring; 6. Return spring; 7. Limiting ball; 8. Connecting frame; 9. Finger ring; 10. Bump; 11. Illuminating optical fiber; 12. Lens; 13. Transparent protective cover; 14. Guide groove; 15. Raised strip; 16. Limiting hole. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] The utility model provides a technical solution, a ureteroscope with both lubricant diversion and near-infrared light functions, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,include:
[0030] The sheath 1 has a mirror body 2 at its right end, and a guide groove 14 is formed integrally with the sheath 1 on one side of its lower end.
[0031] The convex strip 15 is arranged on both sides of the outer part of the flow guide groove 14, and the convex strip 15 is connected with the tube sheath 1.
[0032] The convex block 10 is arranged on the left side of the upper end of the tube sheath 1, the left side of the inner part of the convex block 10 is provided with the illumination optical fiber 11 and the lens 12, and the left side of the outer part of the convex block 10 is provided with the transparent protective cover 13.
[0033] The light guide port 4 is arranged on the upper end of the mirror body 2, and the upper end of the mirror body 2 is located on the right side of the light guide port 4 and provided with the ocular lens 3.
[0034] Please refer to Figure 5 The upper and lower sides of the left end of the mirror body 2 are both provided with the limiting hole 16, and the limiting hole 16 is integrally formed with the mirror body 2.
[0035] Please refer to Figure 2 The outer part of the left side of the mirror body 2 is provided with the outer ring 5, and the upper and lower sides of the inner part of the outer ring 5 are both provided with the reset spring 6.
[0036] Please refer to Figure 2 The outer part of the reset spring 6 is provided with the limiting ball 7, and the limiting ball 7 is connected with the reset spring 6, and the reset spring 6 makes the limiting ball 7 have the automatic reset property.
[0037] Please refer to Figure 2 and Figure 5 The limiting ball 7 is matched with the limiting hole 16, the upper and lower sides of the outer part of the outer ring 5 are both provided with the connecting frame 8, and the limiting ball 7 and the limiting hole 16 make the outer ring 5 be fixed.
[0038] Please refer to Figure 1 and Figure 2 The outer part of the connecting frame 8 is provided with the ring 9, and the ring 9 is connected with the connecting frame 8, and the ring 9 is used for the fingers to pass through so as to hold the mirror body 2.
[0039] The scheme: the near-infrared light source is connected with the light guide port 4, the near-infrared light source is guided to the end of the tube sheath 1 through the illumination optical fiber 11, the near-infrared light is detected through the camera sensor sensitive to the near-infrared light and the lens 12 of the image processing technology, the near-infrared light imaging contrast agent is injected into the ureter, and the imaging can be performed in the camera system, when the tube sheath 1 is pulled out, the lubricant is injected through the flow guide groove 14, after the lubricant fully lubricates the ureter, the pulling out of the tube sheath 1 is more convenient and smooth, the convex strip 15 is matched with the convex strip 15, the input amount of the lubricant is increased, and the smooth surface of the outer part of the convex strip 15 prevents the edge of the flow guide groove 14 from scratching the inner wall of the ureter.
[0040] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0041] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A rigid ureteroscope with both lubricant diversion and near-infrared light functions, characterized in that: include: A sheath (1), wherein a mirror body (2) is provided at the right end of the sheath (1), a guide groove (14) is provided on one side of the lower end of the sheath (1), and the guide groove (14) and the sheath (1) are integrally formed; Raised strips (15) are provided on both sides of the outside of the guide groove (14), and the raised strips (15) are connected to the sheath (1); A convex block (10) is arranged on the left side of the upper end of the tube sheath (1), an illumination optical fiber (11) and a lens (12) are arranged on the left side inside the convex block (10), and a transparent protective cover (13) is arranged on the left side outside the convex block (10); The light guide port (4) is arranged at the upper end of the mirror body (2), and an eyepiece (3) is arranged at the upper end of the mirror body (2) on the right side of the light guide port (4).
2. The rigid ureteroscope with both lubricant diversion and near-infrared light functions according to claim 1, characterized in that: Limiting holes (16) are provided on both the upper and lower sides of the left end of the mirror body (2), and the limiting holes (16) and the mirror body (2) are integrally formed.
3. The rigid ureteroscope with both lubricant diversion and near-infrared light functions according to claim 2, characterized in that: An outer ring (5) is provided on the outside of the left side of the mirror body (2), and return springs (6) are provided on both the upper and lower sides of the inner part of the outer ring (5).
4. The rigid ureteroscope with both lubricant diversion and near-infrared light functions according to claim 3, characterized in that: A limiting ball (7) is provided outside the reset spring (6), and the limiting ball (7) is connected to the reset spring (6).
5. The rigid ureteroscope with both lubricant diversion and near-infrared light functions according to claim 4, characterized in that: The limiting ball (7) is matched with the limiting hole (16), and connecting frames (8) are provided on both upper and lower sides of the outer portion of the outer ring (5).
6. The rigid ureteroscope with both lubricant diversion and near-infrared light functions according to claim 5, characterized in that: A finger ring (9) is provided on the outside of the connecting frame (8), and the finger ring (9) is connected to the connecting frame (8).