Fiber mediated arthroscopic equipment with puncture
By using a fiber-optic puncture arthroscopy device in a gaseous environment, the internal structure of the joint can be observed using imaging fibers and CO2 gas medium. This solves the problems of water diffusion and skin incision in existing technologies, and enables low-trauma and low-risk arthroscopic surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL
- Filing Date
- 2025-05-06
- Publication Date
- 2026-07-24
AI Technical Summary
Current arthroscopic surgeries are performed in an aqueous environment, which causes the diffusion of substances such as stem cells, reducing the effectiveness of treatment. At the same time, cutting the skin to create a surgical approach increases patient pain and recovery time.
The arthroscopy device, which uses fiber optics to guide puncture in a gaseous environment, allows observation of the joint interior using imaging fibers. The device enters the joint through a sheath to reduce trauma and uses CO2 gas as the medium for observation, combined with a display device to show the internal structure.
Reduce surgical risks, minimize trauma, simplify procedures, improve visual clarity, reduce stem cell spread, and shorten recovery time.
Smart Images
Figure CN224540196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical instrument technology, and in particular to a fiber optic puncture arthroscopy device in a gaseous environment. Background Technology
[0002] In related technologies, arthroscopy is equipped with a camera to observe the internal structure and condition of the joint. During arthroscopic surgery, a 0.5cm incision is made in the skin to create a surgical approach so that the camera can be inserted into the joint. However, this increases patient pain and prolongs recovery time. Furthermore, current arthroscopic equipment requires an aqueous environment to obtain a clear view. In the tissue engineering repair of the meniscus, stem cells and growth factors are often used; in an aqueous environment, these substances are prone to diffusion and drift, reducing the effectiveness of the treatment. Summary of the Invention
[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a fiber-optic mediated puncture arthroscopy device in a gaseous environment. This device utilizes imaging fibers to observe the internal condition of the joint. Its small outer diameter allows it to be inserted into the joint via puncture, resulting in lower surgical risk, smaller wounds for the patient, and easier recovery.
[0004] This application proposes a fiber optic puncture arthroscopy device in a gaseous environment. The puncture arthroscopy device includes a base, a sheath, and an imaging fiber optic assembly. A cavity is formed inside the base, and the base has an air inlet, an air outlet, an inlet, and an outlet communicating with the cavity. The sheath is disposed on the base, with one end having a pointed tip for puncture, and the other end of the sheath connected to the base. An endoscope channel is formed inside the sheath, with one end communicating with the outlet and the other end open at the pointed tip. The imaging fiber optic assembly includes at least one imaging fiber, at least a portion of which is located in the endoscope channel. One end of the imaging fiber is configured as a light inlet, extending from the other end of the sheath to the target site, and the other end is configured as a light outlet, adapted for connection to a display device.
[0005] According to the puncture-type arthroscopic device of this application, gas is introduced into the surgical site for observation in a gaseous environment, providing a clear field of view. The imaging fiber optic assembly allows for the imaging and display of the internal joint structure on an external display device via optical transmission, facilitating observation of the internal structure during surgery. Compared to an optical lens, the imaging fiber optic assembly of this application has a simpler structure and smaller radial dimension, resulting in smaller inner and outer diameters of the sheath. Therefore, in practical use, the puncture-type arthroscopic device of this application can be inserted into the joint through puncture under local anesthesia, simplifying the surgical procedure, reducing requirements for the surgical environment, lowering surgical risks, and minimizing surgical trauma.
[0006] According to some embodiments of this application, the imaging fiber assembly is constructed as a single imaging fiber or as a fiber bundle composed of multiple imaging fibers.
[0007] According to some embodiments of this application, the outer diameter of the sheath is denoted as D1, and satisfies D1 = 1.8 mm - 2.2 mm; the inner diameter of the sheath is denoted as D2, and satisfies D2 = 1.1 mm - 1.3 mm.
[0008] According to some embodiments of this application, the endoscope channel includes a straight section and an inclined section. The straight section is disposed inside the sheath and extends along a first direction. The inclined section is disposed at the tip and communicates with the straight section. An opening is formed on the surface of the tip of the inclined section. The extending direction of the inclined section forms an angle with the extending direction of the straight section, denoted as α, and satisfies 25°≦α≦45°.
[0009] According to some embodiments of this application, the imaging fiber optic assembly is constructed as a deformable component.
[0010] According to some embodiments of this application, the inner diameter of the outlet gradually decreases along the direction close to the endoscope channel.
[0011] According to some embodiments of this application, a sensor is provided inside the cavity to detect the air pressure inside the cavity.
[0012] According to some embodiments of this application, the puncture-type arthroscopic device further includes a sealing plug disposed at the inlet, and the sealing plug having a slit adapted to be selectively opened to allow insertion of an imaging fiber optic assembly or closed to seal the inlet.
[0013] According to some embodiments of this application, the imaging fiber assembly further includes a connector, which is disposed on the lens mount, connected to the light-emitting end of the imaging fiber, and adapted to be connected to a display device.
[0014] According to some embodiments of this application, the puncture-type arthroscopic device further includes: an air inlet pipe and an air outlet pipe, the air inlet pipe being connected to an air inlet and having an air inlet valve; and the air outlet pipe being connected to an air outlet and having an air outlet valve.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0017] Figure 1This is a schematic diagram of the structure of a puncture arthroscopic device according to some embodiments of this application;
[0018] Figure 2 This is a schematic diagram of the structure of the lens barrel and lens mount according to some embodiments of this application;
[0019] Figure 3 This is a schematic diagram showing the structural dimensions of the lens barrel and lens mount according to some embodiments of this application;
[0020] Figure 4 This is a schematic diagram of the system connection when a puncture arthroscopic device is used according to some embodiments of this application.
[0021] Figure label:
[0022] Lens mount 10; Lens inlet 11; Lens outlet 12; Air inlet 13; Air outlet 14;
[0023] Sheath 20; Endoscopic channel 21; Straight section 211; Inclined section 212; Tip 22;
[0024] Imaging fiber optic assembly 30; imaging fiber optic cable 31; connector 32; display device 80;
[0025] Sealing plug 40;
[0026] Intake pipe 50; Intake valve 51; Exhaust pipe 60; Exhaust valve 61; Air supply device 70; Exhaust device 90. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0028] The following is for reference. Figures 1-2 This invention describes a fiber-optic mediated puncture arthroscopy device in a gaseous environment according to an embodiment of the present invention.
[0029] This application proposes a fiber optic puncture arthroscopy device in a gaseous environment. The puncture arthroscopy device includes a mount 10, a sheath 20, and an imaging fiber optic assembly 30. The mount 10 has a cavity and an air inlet 13, an air outlet 14, an inlet 11, and an outlet 12 communicating with the cavity. The sheath 20 is disposed on the mount 10, and one end of the sheath 20 has a tip 22 for puncture. The other end of the sheath 20 is connected to the mount 10. An endoscope channel 21 is formed inside the sheath 20. One end of the endoscope channel 21 communicates with the outlet 12, and the other end is open at the tip 22. The imaging fiber optic assembly 30 includes at least one imaging fiber 31. At least a portion of the imaging fiber 31 is located in the endoscope channel 21. One end of the imaging fiber 31 is configured as a light-inlet end, which extends from the other end of the sheath 20 to the target site. The other end of the imaging fiber 31 is configured as a light-outlet end and is adapted to be connected to a display device 80.
[0030] According to the puncture-type arthroscopic device of this application, the endoscope base 10 can be held; one end of the sheath 20 has a tip 22, and the other end is connected to the endoscope base 10. During use, the tip 22 can be used for puncture, allowing a portion of the sheath 20 to extend into the joint; the imaging fiber assembly 30 includes an imaging fiber 31, one end of which is configured as an input end and the other end as an output end. At least a portion of the imaging fiber 31 is located in the endoscope channel 21. When the sheath 20 is used for puncture, it can drive the imaging fiber 31 into the joint. The input end extends through the sheath 20 to the target site, and the output end is adapted to be connected to the display device 80. Light is transmitted between the input and output ends, allowing the internal structure of the joint to be imaged and displayed on the display device 80. Furthermore, this application allows gas to be introduced into the surgical site through the air inlet 13, the cavity, and the endoscope channel 21 for observation in a gaseous environment. In some embodiments, the puncture-type arthroscopic device of this application is used in a CO2 gaseous environment for observation.
[0031] According to the puncture-type arthroscopy device of this application, gas is introduced into the surgical site for observation in a gaseous environment, providing a clear field of view. The imaging fiber optic assembly 30 can use light transmission to image and display the internal joint view on the external display device 80, facilitating observation of the internal structure during surgery. Compared to an optical lens, the imaging fiber optic assembly 30 of this application has a simpler structure and smaller radial dimension, resulting in smaller inner and outer diameters of the sheath 20. Therefore, in practical use, the puncture-type arthroscopy device of this application can be inserted into the joint through puncture under local anesthesia, simplifying the surgical procedure, reducing the requirements for the surgical environment, lowering surgical risks, and reducing surgical trauma.
[0032] According to some embodiments of this application, the imaging fiber assembly 30 is constructed as a single imaging fiber 31 or as a fiber bundle composed of multiple imaging fibers 31. In this embodiment, the imaging fiber assembly 30 can be constructed as a single imaging fiber 31 or as a fiber bundle composed of multiple imaging fibers 31, and the appropriate configuration can be selected based on practical needs and structural dimensions. In some embodiments, the outer diameter of the imaging fiber assembly 30 is 1 mm.
[0033] According to some embodiments of this application, the outer diameter of the sheath 20 is denoted as D1, and satisfies D1 = 1.8 mm - 2.2 mm; the inner diameter of the sheath 20 is denoted as D2, and satisfies D2 = 1.1 mm - 1.3 mm. In this embodiment, as... Figure 3 As shown, setting the outer and inner diameters of the sheath 20 to the aforementioned dimensions makes it more advantageous for the puncture-type arthroscopic device of this application to enter the joint via puncture.
[0034] According to some embodiments of this application, the endoscope channel 21 includes a straight section 211 and an inclined section 212. The straight section 211 is disposed within the sheath 20 and extends along a first direction; the inclined section 212 is disposed at the tip 22 and communicates with the straight section 211, and an opening is formed on the surface of the tip 22; wherein the extending direction of the inclined section 212 forms an angle with the extending direction of the straight section 211, denoted as α, and satisfies 25°≦α≦45°. In this embodiment, as... Figure 3 As shown, by constructing the endoscope channel 21 as a combination of a straight tube section 211 and an inclined section 212, the inclined section 212 is located at the tip 22 and communicates with the straight tube section 211. The inclined section 212 has an open opening on the surface of the tip 22, which can make the light-gathering end of the imaging fiber 31 extend at a certain angle with the sheath 20 within the joint, thereby enabling a larger observation range. When the sheath 20 is moved, observation without blind spots can be achieved.
[0035] According to some embodiments of this application, the imaging fiber optic assembly 30 is constructed as a deformable component. In this embodiment, the imaging fiber optic assembly is constructed as a deformable component with a certain degree of flexibility, capable of adapting to the shape of the endoscope channel 21, facilitating the light inlet end to pass through the endoscope channel 21 and extend into the joint.
[0036] According to some embodiments of this application, the inner diameter of the outlet 12 gradually decreases along the direction close to the endoscope channel 21. In this embodiment, the gradual decrease in the inner diameter of the outlet 12 along the direction close to the endoscope channel 21 plays a certain guiding role for the imaging optical fiber 31, facilitating the insertion of the imaging optical fiber 31 into the endoscope channel 21.
[0037] According to some embodiments of this application, a sensor is provided inside the cavity to detect the air pressure inside the cavity. In this embodiment, by setting a sensor to detect the air pressure inside the cavity, the air pressure inside the joint is kept under control, thereby ensuring the smooth progress of the surgery.
[0038] According to some embodiments of this application, the puncture-type arthroscopic device further includes a sealing plug 40 disposed at the inlet 11, and the sealing plug 40 has an incision adapted to be selectively opened to allow insertion of the imaging fiber optic assembly 30 or closed to seal the inlet 11. In this embodiment, by providing the sealing plug 40, the internal structure of the puncture-type arthroscopic device is kept sealed, thereby maintaining the air pressure of the surgical environment and preventing contamination.
[0039] According to some embodiments of this application, the imaging fiber optic assembly 30 is detachably connected to the mount 10, and the structure of the puncture-type arthroscopic device after disassembling the imaging fiber optic assembly 30 is as follows: Figure 2 As shown. In this embodiment, the imaging fiber optic assembly 30 is detachably connected to the lens mount 10, facilitating maintenance of the structure when not in use. In this embodiment, the sheath 20 can be punctured and inserted into the joint alone. After insertion, CO2 gas can be introduced. Once a CO2 gas medium environment is formed, the imaging fiber optic assembly 30 can then be inserted for observation. In some embodiments, the sheath 20 and the imaging fiber optic 31 can also be punctured and inserted into the joint together, and CO2 gas can be introduced to form a CO2 gas medium environment.
[0040] According to some embodiments of this application, the imaging fiber assembly 30 further includes a connector 32, which is disposed on the mirror mount 10 and connected to the light-emitting end of the imaging fiber 31, and is adapted to be connected to the display device 80. In this embodiment, by providing the connector 32, the imaging fiber assembly 30 can be installed on the mirror mount 10, and the relative position of the imaging fiber 31 and the sheath 20 can remain unchanged, facilitating observation operations.
[0041] According to some embodiments of this application, the puncture-type arthroscopic device further includes: an air inlet pipe 50 and an air outlet pipe 60. The air inlet pipe 50 is connected to an air inlet 13 and is equipped with an air inlet valve 51; the air outlet pipe 60 is connected to an air outlet 14 and is equipped with an air outlet valve 61. In this embodiment, the air inlet pipe 50 can be connected to a gas supply device 70 to introduce CO2 gas into the joint, and the air outlet pipe 60 can be connected to an exhaust device 90 to extract the CO2 gas from the joint after the operation. The exhaust device 90 can be a structure such as an air pump; the gas delivery speed and volume can be controlled by the air inlet valve 51 and the air outlet valve 61, improving the controllability of the puncture-type arthroscopic device surgical procedure.
[0042] When the puncture-type arthroscopy device of this application is specifically applied to surgical procedures, the arthroscopic surgical system includes the puncture-type arthroscopy device described in this application, and also includes an air supply device 70, an exhaust device 90, and a display device 80.
[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0044] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.
[0045] In the description of this utility model, "multiple" means two or more.
[0046] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.
[0047] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.
[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A fiber-optic mediated puncture arthroscopy device in a gaseous environment, characterized in that, include: The mirror mount has a cavity formed inside it, and the mirror mount has an air inlet, an air outlet, a mirror inlet, and a mirror outlet communicating with the cavity. The sheath is disposed on the endoscope base, one end of the sheath is formed with a tip for puncture, and the other end of the sheath is connected to the endoscope base; an endoscope channel is formed inside the sheath, one end of the endoscope channel is connected to the endoscope outlet, and the other end is open at the tip; An imaging fiber optic assembly includes at least one imaging fiber, at least a portion of which is located in the endoscope channel. One end of the imaging fiber is configured as a light-inlet end, which extends from the other end of the sheath to the target site. The other end of the imaging fiber is configured as a light-outlet end and is adapted to be connected to a display device.
2. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 1, characterized in that, The imaging fiber assembly is constructed as a single imaging fiber or as a fiber bundle composed of multiple imaging fibers.
3. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 2, characterized in that, The outer diameter of the sheath is denoted as D1, and satisfies D1 = 1.8 mm - 2.2 mm; the inner diameter of the sheath is denoted as D2, and satisfies D2 = 1.1 mm - 1.3 mm.
4. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 1, characterized in that, The endoscope access includes: A straight pipe section, wherein the straight pipe section is disposed within the sheath and extends along a first direction; An inclined section is disposed at the tip and communicates with the straight pipe section, wherein the inclined section has an opening formed on the surface of the tip; wherein The extension direction of the inclined section forms an angle with the extension direction of the straight pipe section, the angle being denoted as α, and satisfying 25°≦α≦45°.
5. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 4, characterized in that, The imaging fiber optic assembly is constructed as a deformable component.
6. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 1, characterized in that, The inner diameter of the exit port gradually decreases along the direction close to the endoscope channel.
7. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 1, characterized in that, A sensor is installed inside the cavity to detect the air pressure inside the cavity.
8. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to claim 1, characterized in that, Also includes: A sealing plug is disposed at the lens inlet and has a cutout that is selectively opened to allow insertion of the imaging fiber assembly or closed to seal the lens inlet.
9. The fiber-optic mediated puncture arthroscopy device in a gaseous environment according to any one of claims 1-8, characterized in that, The imaging fiber optic assembly also includes: A connector is disposed on the mirror mount, the connector is connected to the light-emitting end of the imaging optical fiber, and is adapted to be connected to the display device.
10. The fiber-optic puncture arthroscopic device in a gaseous environment according to any one of claims 1-8, characterized in that, Also includes: An air inlet pipe and an air outlet pipe are provided. The air inlet pipe is connected to the air inlet and is equipped with an air inlet valve. The air outlet pipe is connected to the air outlet and is equipped with an air outlet valve.