Arthroscope sheath and arthroscope kit

Abstract

The embodiment of the utility model provides an arthroscope sheath and an arthroscope suite, and relates to the field of medical instruments, and the arthroscope sheath comprises a cannula, a connector and a buckle structure. One end of the sleeve is connected with the connector; the connector is provided with an insertion hole communicated with a tube cavity of the sleeve; the buckle structure is arranged on the connector, the buckle structure is provided with a force application end and a clamping end, and the clamping end is used for being in clamping fit with the arthroscope body arranged in the insertion hole in a penetrating mode so as to limit the arthroscope body to slide in the axial direction of the insertion hole relative to the connector; the force application end is used for driving the clamping end to move so that the clamping end can be separated from the arthroscope body. According to the structural design of the arthroscope sheath, the combination firmness of the arthroscope body and the sheath can be improved, the arthroscope body is not prone to axially moving relative to the sheath when the arthroscope sheath is used, the position of the arthroscope body is stable and reliable, safety is high, the operation success rate is high, and operation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to an arthroscopic sheath and an arthroscopic kit. Background Technology

[0002] In clinical treatment, the arthroscopy body is usually used in conjunction with the outer sheath. After the outer sheath is inserted into the patient's body, the arthroscopy body is inserted into the outer sheath, thereby using the arthroscopy body to perform relevant treatment procedures.

[0003] The inventors discovered in their research that the existing arthroscopic sheath and arthroscopic body mating structure has at least the following drawbacks:

[0004] The arthroscope body is inserted into the outer sheath, and the two rely solely on the frictional force between the arthroscope body and the outer sheath for positioning. During the operation, the arthroscope body is prone to axial dislodgement relative to the outer sheath, resulting in poor axial positional stability and high safety risks. Utility Model Content

[0005] The purpose of this invention includes, for example, providing an arthroscopic outer sheath and arthroscopic kit, which can improve the bonding strength between the arthroscopic body and the outer sheath, making it less likely for the arthroscopic body to move axially relative to the outer sheath during use, ensuring the stable and reliable position of the arthroscopic body, high safety, high surgical success rate, and high surgical efficiency.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, this utility model provides an arthroscopic sheath, comprising:

[0008] The device comprises a sleeve, a connector, and a snap-fit ​​structure. One end of the sleeve is connected to the connector. The connector has an insertion hole communicating with the lumen of the sleeve. The snap-fit ​​structure is disposed on the connector and has a force-applying end and a locking end. The locking end is used to engage with an arthroscope body inserted into the insertion hole to restrict the arthroscope body from sliding axially relative to the connector in the insertion hole. The force-applying end is used to drive the locking end to move so that the locking end separates from the arthroscope body.

[0009] In an optional implementation, the snap-fit ​​structure is elastically connected to the connector.

[0010] Based on the above scheme, the elastic force facilitates the automatic locking of the snap-fit ​​structure and the arthroscopy body.

[0011] In an optional embodiment, the snap-fit ​​structure includes a connected elastic arm and a snap-fit ​​arm. The elastic arm is connected to the connector and is used to generate elastic deformation under external force to drive the snap-fit ​​arm to move relative to the connector. The force-applying end and the snap-fit ​​end are both disposed on the snap-fit ​​arm.

[0012] Based on the above scheme, the locking arm can use the elastic arm as a fulcrum, and when the elastic arm undergoes elastic deformation, the locking arm can perform corresponding movements, so that the locking arm can lock and cooperate with the arthroscope body, or make the locking end of the locking arm leave the arthroscope body, so as to facilitate the removal of the arthroscope body.

[0013] In an optional embodiment, the force-applying end and the outer surface of the connector are spaced apart to form a clearance space between the force-applying end and the connector for the force-applying end to move; the force-applying end is used to drive the locking end away from the insertion hole when it approaches the connector under the action of external force, so as to separate the locking end from the arthroscopic body.

[0014] Based on the above scheme, by pressing the force-applying end to drive the locking arm to move, the locking end of the locking arm is moved away from the arthroscope body, which facilitates the application of force and makes the operation convenient.

[0015] In an optional embodiment, the snap-fit ​​arm has a bent section on the side away from the force-applying end, which bends toward the insertion hole, and the snap-fit ​​end is located at the end of the bent section.

[0016] Based on the above solution, by setting a bending section, the structural strength of the locking arm can be enhanced. When the locking end of the locking arm is locked with the arthroscope body, the locking arm is not easily deformed and is not easily separated from the arthroscope body, resulting in a good limiting effect.

[0017] In an optional embodiment, the connector head is provided with a mounting groove, the elastic arm is mounted on the bottom wall of the mounting groove, and the elastic arm is spaced apart from the side wall of the mounting groove.

[0018] Based on the above solution, the mounting slot can provide a mounting area for the flexible arm, thereby improving the compactness of the snap-fit ​​structure and the connector, reducing the axial dimension of the outer sheath, and reducing the overall volume.

[0019] In an optional embodiment, a portion of the snap-fit ​​arm is located within the mounting groove, and the snap-fit ​​arm is located on the side of the mounting groove opening near the bottom of the mounting groove.

[0020] Based on the above scheme, the snap-fit ​​arm is located on the side of the mounting groove opening near the bottom of the mounting groove, and the snap-fit ​​arm does not protrude from the mounting groove opening, further reducing the axial dimension of the outer sheath.

[0021] In an optional embodiment, the surface of the snap-fit ​​structure is provided with anti-slip texture.

[0022] Based on the above solution, the operator applies force to the buckle structure at the anti-slip texture, which is not easy to slip, and the operation is time-saving and labor-saving.

[0023] In an optional embodiment, the connector head is provided with a first inlet / outlet connector and / or a second inlet / outlet connector that communicates with the insertion hole.

[0024] Based on the above scheme, by setting a first inlet / outlet connector and a second inlet / outlet connector, it is convenient to introduce external liquids into the patient's body and also convenient to draw internal liquids out of the body.

[0025] In an optional embodiment, a flow regulating valve is provided on the first inlet / outlet connector and / or the second inlet / outlet connector.

[0026] Based on the above solution, the flow rate of liquid can be adjusted in real time through the flow regulating valve, which is convenient for operation.

[0027] Secondly, this utility model provides an arthroscopy kit, the arthroscopy kit comprising:

[0028] The arthroscope body and the arthroscope sheath as described in any of the foregoing embodiments, wherein the arthroscope body is inserted into the insertion hole and is engaged with the locking end.

[0029] In an optional embodiment, the arthroscopy body includes a handle, a connector, and an insertion part connected in sequence, with the insertion part passing through the insertion hole; the connector is provided with a slot, and the locking end engages with the slot.

[0030] Based on the above scheme, the snap-fit ​​end and the snap-fit ​​slot are engaged, and the structure of the two is firm and reliable, and not easy to loosen.

[0031] In an optional embodiment, the slot is configured as an annular groove, and the snap-fit ​​end is rotatably engaged with the annular groove in the circumferential direction of the insertion hole.

[0032] Based on the above scheme, the locking end and the locking groove can restrict the axial degree of freedom of the arthroscope body, but not restrict the circumferential degree of freedom of the arthroscope body. The arthroscope body can rotate relative to the outer sheath, thereby avoiding obstacles. It can adapt to different usage environments and is flexible and convenient to operate.

[0033] The beneficial effects of this utility model embodiment include, for example:

[0034] In summary, the arthroscopic sheath provided in this embodiment, by configuring a snap-fit ​​structure on the connector head, allows the arthroscopic body to engage with the snap-fit ​​end of the snap-fit ​​structure when the arthroscopic body is inserted into the insertion hole and the insertion depth meets the set requirements. The axial freedom of the arthroscopic body is restricted, meaning that the arthroscopic body will not slide relative to the arthroscopic sheath in its axial direction. The axial position of the arthroscopic body is stable and reliable. During the operation, the arthroscopic body will not fall off from the connector head, reducing safety risks, improving surgical safety, and increasing surgical efficiency. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the arthroscopic outer sheath according to an embodiment of this application;

[0037] Figure 2 This is a cross-sectional schematic diagram of a portion of the structure of the arthroscopic outer sheath according to an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the deformed structure of the arthroscopic outer sheath according to an embodiment of this application;

[0039] Figure 4 This is a schematic diagram of an arthroscopic kit according to an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the arthroscopy body according to an embodiment of this application;

[0041] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0042] Figure 7 This is a partial cross-sectional schematic diagram of an arthroscopic kit according to an embodiment of this application.

[0043] icon:

[0044] 001-Arthoscope outer sheath; 100-Sleeve; 101-Inlet / outlet water port; 200-Connector; 201-Insert hole; 202-Mounting groove; 210-First port; 220-Second port; 230-First inlet / outlet connector; 240-Second inlet / outlet connector; 250-Flow regulating valve; 300-Snap-fit ​​structure; 310-Elastic arm; 320-Snap-fit ​​arm; 321-Force application end; 322-Snap-fit ​​end; 3221-Bevel; 323-Bending section; 324-Anti-slip texture; 002-Arthoscope body; 021-Handle; 022-Connector; 023-Insert part; 024-Sealing ring; 025-Slot. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0049] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0050] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0051] In the prior art, after the outer sheath and the arthroscope body 002 are combined, the arthroscope body 002 is limited only by the friction between its outer wall and the inner wall of the outer sheath. During use, the arthroscope body 002 is prone to move relative to the outer sheath in its axial direction and fall off from the outer sheath, which poses a safety risk. In order to reposition the arthroscope body 002, time is increased and surgical efficiency is reduced.

[0052] In view of this, the designers have provided an arthroscopic outer sheath 001, which can improve the firmness of the fit between the arthroscopic body 002 and the outer sheath. The axial degree of freedom of the arthroscopic body 002 is restricted, making it less likely to fall off during use, ensuring safety and reliability, and improving surgical efficiency.

[0053] Please refer to Figures 1-2 This embodiment provides an arthroscopic sheath 001, which includes a sleeve 100, a connector 200, and a snap-fit ​​structure 300. One end of the sleeve 100 is connected to the connector 200; the connector 200 is provided with an insertion hole 201 communicating with the lumen of the sleeve 100; the snap-fit ​​structure 300 is disposed on the connector 200, and the snap-fit ​​structure 300 has a force-applying end 321 and a snap-fit ​​end 322. The snap-fit ​​end 322 is used to snap into the arthroscopic body 002 inserted in the insertion hole 201 to restrict the arthroscopic body 002 from sliding axially relative to the connector 200 in the insertion hole 201; the force-applying end 321 is used to drive the snap-fit ​​end 322 to move so that the snap-fit ​​end 322 separates from the arthroscopic body 002.

[0054] As described above, the arthroscopic outer sheath 001 provided in this embodiment is used as follows:

[0055] The arthroscopic outer sheath 001 is used in conjunction with the arthroscopic body 002. Because a snap-fit ​​structure 300 is provided on the connector 200 of the arthroscopic outer sheath 001, when the arthroscopic body 002 is inserted into the insertion hole 201 and the insertion depth meets the set requirements, the arthroscopic body 002 can snap into the snap-fit ​​end 322 of the snap-fit ​​structure 300. The axial degree of freedom of the arthroscopic body 002 is restricted, that is, the arthroscopic body 002 will not slide relative to the arthroscopic outer sheath 001 in its axial direction. The axial position of the arthroscopic body 002 is stable and reliable. During the operation, the arthroscopic body 002 will not fall off from the connector 200, reducing safety risks, improving surgical safety, and improving surgical efficiency.

[0056] The following embodiments illustrate the details of the arthroscopic outer sheath 001 of this application by way of example.

[0057] Please refer to Figures 1-2In this embodiment, optionally, the arthroscopic outer sheath 001 includes a sleeve 100, a connector 200, and two snap-fit ​​structures 300. The sleeve 100 is fixedly connected to the connector 200, and the connector 200 is provided with an insertion hole 201, which communicates with the lumen of the sleeve 100. Both snap-fit ​​structures 300 are integrally formed with the connector 200, and the two snap-fit ​​structures 300 are evenly spaced in the circumferential direction of the connector 200, that is, the two snap-fit ​​structures 300 are centrally symmetrical. The two snap-fit ​​structures 300 cooperate to engage the arthroscopic body 002 inserted into the insertion hole 201, thereby restricting the relative movement of the arthroscopic body 002 with respect to the connector 200 in its axial direction.

[0058] It should be understood that the number of snap-fit ​​structures 300 is not limited to two; it can also be one or three, meaning that the number of snap-fit ​​mechanisms is at least one. Furthermore, the snap-fit ​​structure 300 can also be connected to the connector 200 in other ways, making the snap-fit ​​structure 300 and the connector 200 an integrated structure, which facilitates processing, is suitable for mass production, and reduces manufacturing costs.

[0059] In this embodiment, optionally, the sleeve 100 can be a stainless steel tube, and the connector 200 and the snap-fit ​​structure 300 can be integrally molded. Therefore, the connector 200 can be injection molded onto one end of the sleeve 100, or the two can be fixedly connected by other means. One end of the sleeve 100 is connected to one end of the insertion hole 201, and the sleeve 100 can be inserted into the insertion hole 201 to a set depth. A through hole communicating with the insertion hole 201 is provided on the tube wall of the sleeve 100 to facilitate liquid flow.

[0060] Optionally, the end of the sleeve 100 away from the connector 200 is an open end, and multiple inlet and outlet holes 101 are provided on the pipe wall of the sleeve 100 away from the connector 200 to facilitate liquid flow.

[0061] Please refer to Figure 2 In this embodiment, optionally, the connector 200 can be a cylindrical structure, having a first port 210 and a second port 220 along its axial direction. Both the first port 210 and the second port 220 can be circular holes, with the diameter of the first port 210 being smaller than that of the second port 220. A portion of the tube wall of the connector 200 can be tapered to form the first port 210. The sleeve 100 abuts against the first port 210. Two mounting grooves 202 are formed at the second port 220, and two snap-fit ​​structures 300 are formed at the locations of the mounting grooves 202. The two snap-fit ​​structures 300 are identical, and their mating structures with the connector 200 are identical. For ease of description, the mating of one snap-fit ​​structure 300 with the connector 200 is used as an example.

[0062] Please refer to Figures 1-2 Optionally, the snap-fit ​​structure 300 includes a connected elastic arm 310 and a snap-fit ​​arm 320. The elastic arm 310 is fixedly connected to the connector 200. One end of the elastic arm 310 is located in the corresponding mounting groove 202 and is integrally formed with the bottom wall of the mounting groove 202. The two sides of the elastic arm 310 are spaced from the two corresponding side walls of the mounting groove 202. The elastic arm 310 has a certain elastic deformation capability, so that the elastic arm 310 and the connector 200 are elastically connected. Thus, the elastic arm 310 can undergo elastic deformation under the action of external force, thereby driving the snap-fit ​​arm 320 to move relative to the connector 200. At the same time, the snap-fit ​​arm 320 is installed at the end of the connector arm away from the elastic arm 310, and the snap-fit ​​arm 320 and the elastic arm 310 are an integral structure. The snap-fit ​​arm 320 has a force-applying end 321 and a snap-fit ​​end 322 in its length direction. The force-applying end 321 is located on the side of the snap-fit ​​end 322 closer to the sleeve 100. The locking arm 320, located on the portion of the elastic arm 310 near the sleeve 100, is spaced from the connector 200 to create clearance space between the locking arm 320 and the connector 200 for the movement of the force-applying end 321. In other words, there is a gap between the force-applying end 321 and the connector 200. Pressing the force-applying end 321 brings it closer to the connector 200, thereby moving the locking end 322 away from the insertion hole 201 and separating the locking end 322 from the arthroscopic body 002 inserted into the insertion hole 201. Specifically, the locking arm 320, located on the portion of the elastic arm 310 away from the sleeve 100, has a bent section 323. The locking end 322 is located at the end of the bent section 323, which bends towards the insertion hole 201. That is, the locking end 322 is located on the side of the locking arm 320 near the connector 200. By pressing the force-applying end 321, the elastic arm 310 undergoes a certain elastic deformation, thereby driving the snap-fit ​​end 322 away from the insertion hole 201, making operation convenient.

[0063] Meanwhile, part of the snap-fit ​​arm 320 is located in the mounting groove 202, with the snap-fit ​​arm 320 positioned on the side of the mounting groove 202 opening near the bottom of the groove. That is, the snap-fit ​​arm 320 does not protrude from the mounting groove 202 opening, which reduces the axial dimension of the outer sheath.

[0064] Please refer to Figure 2 Optionally, the snap-fit ​​end 322 can be set as a bevel 3221. When the arthroscope body 002 is engaged with the arthroscope outer sheath 001, the arthroscope body 002 can contact the bevel 3221. The bevel 3221 has the function of guiding the arthroscope body 002 into the insertion hole 201.

[0065] Furthermore, anti-slip textures 324 can be provided on the outer surface of the locking arm 320. When pressing the force-applying end 321, the operator's hand comes into contact with the anti-slip textures 324, resulting in high friction and preventing slippage, thus saving time and effort. In addition, since the two locking structures 300 are symmetrically arranged, both force-applying ends 321 can be pressed simultaneously with one hand, thereby controlling both locking structures 300 at the same time, making operation convenient and quick.

[0066] Please refer to Figure 3 In addition, a first inlet / outlet connector 230 and a second inlet / outlet connector 240 communicating with the insertion hole 201 can be provided on the connector 200. By providing the first inlet / outlet connector and the second inlet / outlet connector 240, it is convenient to introduce external fluids into the patient's body and also convenient to drain internal fluids out of the body.

[0067] It should be understood that flow regulating valves 250 can be installed on both the first inlet / outlet connector 230 and the second inlet / outlet connector 240. Furthermore, both the first inlet / outlet connector 230 and the second inlet / outlet connector 240 can be Luer connectors, with the flow regulating valve 250 and the Luer connector having a quick-release fit for easy operation. Additionally, tee connectors can be installed at the first inlet / outlet connector 230 and the second inlet / outlet connector 240, with flow regulating valves 250 installed on the tee connectors. In actual operation, the flow regulating valve 250 on the first inlet / outlet connector 230 can be opened while the flow regulating valve 250 on the second inlet / outlet connector 240 is closed. Liquid can enter from the first inlet / outlet connector 230, pass through the sleeve 100, and then flow out from the inlet / outlet hole 101 at the front end of the sleeve 100. Simultaneously, the flow regulating valve 250 on the first inlet / outlet connector 230 can be closed while the flow regulating valve 250 on the second inlet / outlet connector 240 is opened. Liquid can enter the sleeve 100 from the inlet / outlet hole 101 and then exit from the second inlet / outlet connector 240. The pump body can be installed at the second inlet / outlet connector 240 to improve water output efficiency.

[0068] It should be understood that both the first inlet / outlet connector 230 and the second inlet / outlet connector 240 can be integrated onto the connector 200.

[0069] The arthroscopic outer sheath 001 provided in this embodiment has a snap-fit ​​structure 300 on the connector 200. When the arthroscopic body 002 is inserted into the insertion hole 201, the snap-fit ​​structure 300 can engage with the arthroscopic body 002, restricting the axial freedom of the arthroscopic body 002 and preventing the arthroscopic body 002 from falling off the arthroscopic outer sheath 001 during use, thereby improving the safety of the operation.

[0070] Please refer to Figures 4-7This embodiment also provides an arthroscopy kit, which includes an arthroscopy body 002 and an arthroscopy sheath 001. The arthroscopy body 002 is inserted into the insertion hole 201 and is engaged with the locking end 322. The arthroscopy body 002 and the arthroscopy sheath 001 are firmly engaged, and the arthroscopy body 002 is not easily dislodged from the arthroscopy sheath 001.

[0071] Please refer to Figures 4-6 Optionally, the arthroscopy body 002 includes a handle 021, a connector 022, an insertion part 023, and a sealing ring 024. The handle 021 can be a conical shell with a large surface area, facilitating the surgeon's grip and preventing slippage. The connector 022 can be welded to the handle 021. A groove 025 is provided on the outer circumferential surface of the connector 022, which can be configured as an annular groove surrounding the connector 022. The insertion part 023 is fixedly connected to the connector 022 and can be inserted into the insertion hole 201. The connector head 200 is located inside the insertion hole 201, and the snap-fit ​​end 322 on the connector head 200 engages with the groove 025. The sealing ring 024 is sleeved on the outside of the connector 022. The sealing ring 024 is located on the side of the groove 025 away from the handle 021 and is located in the insertion hole 201, sealingly engaging with the hole wall of the insertion hole 201. The sealing position of the sealing ring 024 and the insertion hole 201 is located on the side of the first inlet / outlet connector 230 and the second inlet / outlet connector 240 near the handle 021. When the liquid flows at the first inlet / outlet connector 230 and the second inlet / outlet connector 240, it is not easy to leak from the handle 021 side.

[0072] Because the slot 025 is designed as an annular groove, the relative circumferential position of the arthroscope body 002 and the arthroscope sheath 001 does not need to be adjusted before the arthroscope body 002 is inserted into the insertion hole 201, making operation convenient and quick. Furthermore, the engaging engagement between the locking end 322 and the slot 025 restricts the axial freedom of the arthroscope body 002, but not its circumferential freedom. The arthroscope body 002 can rotate relative to the sheath to avoid obstacles, adapting to different usage environments and offering flexible and convenient operation.

[0073] Please refer to Figure 7It should be understood that, in the initial state, the distance between the locking ends 322 of the two locking structures 300 is less than the outer diameter of the connector 022. Thus, when the arthroscope body 002 engages with the arthroscope sheath 001, the connector 022 first contacts the locking ends 322, which can spread the two locking ends 322 apart. When the locking ends 322 move to the position of the slot 025, the two locking ends 322 tend to move closer together under the action of the elastic arm 310, thereby locking and locking the locking ends 322 with the slot 025, achieving axial positioning of the arthroscope body 002. When it is necessary to remove the arthroscope body 002, the two force-applying ends 321 can be pressed simultaneously. The two elastic arms 310 deform, and the two locking ends 322 move away from each other, thus detaching from the arthroscope body 002. The locking ends 322 lose their constraint on the arthroscope body 002, and the arthroscope body 002 can be pulled out from the sleeve 100, making the operation convenient.

[0074] It should be understood that a camera module and an illumination module may be installed at the front end of the insertion part 023 of the arthroscopic body 002.

[0075] The arthroscopy kit provided in this embodiment has a simple assembly and disassembly method for the arthroscopy body 002 and the arthroscopy sheath 001. The axial position of the arthroscopy body 002 is stable, making it safe and reliable to use, with high surgical efficiency and a high surgical success rate.

[0076] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An arthroscopic sheath, characterized by, The outer sheath comprises a sleeve (100), a connector (200) and a buckle structure (300), one end of the sleeve (100) is connected with the connector (200), the connector (200) is provided with an insertion hole (201) in communication with the lumen of the sleeve (100), the buckle structure (300) is arranged on the connector (200), the buckle structure (300) has a force applying end (321) and a clamping end (322), the clamping end (322) is used for clamping and matching with an arthroscope body (002) inserted in the insertion hole (201) to limit the arthroscope body (002) from sliding in the axial direction of the insertion hole (201) relative to the connector (200), and the force applying end (321) is used for driving the clamping end (322) to move so as to separate the clamping end (322) from the arthroscope body (002).

2. The outer sheath of arthroscope according to claim 1, wherein the buckle structure (300) is elastically connected with the connector (200).

3. The outer sheath of arthroscope according to claim 2, wherein the buckle structure (300) comprises an elastic arm (310) and a clamping arm (320) connected with each other, the elastic arm (310) is connected with the connector (200), the elastic arm (310) is used for elastically deforming under external force to drive the clamping arm (320) to move relative to the connector (200), and the force applying end (321) and the clamping end (322) are both arranged on the clamping arm (320).

4. The outer sheath of arthroscope according to claim 3, wherein the force applying end (321) has a spacing with the outer surface of the connector (200) to form a avoiding space for the movement of the force applying end (321) between the force applying end (321) and the connector (200), and the force applying end (321) is used for driving the clamping end (322) to move away from the insertion hole (201) when the force applying end (321) approaches the connector (200) under external force, so as to separate the clamping end (322) from the arthroscope body (002).

5. The outer sheath of arthroscope according to claim 3, wherein the clamping arm (320) is provided with a bending segment (323) bending towards the insertion hole (201) on the side away from the force applying end (321), and the clamping end (322) is arranged at the end of the bending segment (323).

6. The outer sheath of arthroscope according to claim 3, wherein the connector (200) is provided with a mounting groove (202), the elastic arm (310) is mounted on the groove bottom wall of the mounting groove (202), and the elastic arm (310) has a spacing with the groove side wall of the mounting groove (202).

7. The outer sheath of arthroscope according to claim 6, wherein ​ ​ ​ ​ ​ ​ Part of the clamping arm (320) is located in the mounting groove (202), and the clamping arm (320) is located at the side of the mounting groove (202) close to the groove bottom of the mounting groove (202).

8. The arthroscopic sheath according to any one of claims 1-7, characterized in that: The surface of the buckle structure (300) is provided with anti-skid lines (324).

9. The arthroscopic sheath according to any one of claims 1-7, characterized in that: The connecting head (200) is provided with a first inlet and outlet connector (230) or / and a second inlet and outlet connector (240) in communication with the insertion hole (201).

10. The arthroscopic sheath according to claim 9, characterized in that: The first inlet and outlet connector (230) or / and the second inlet and outlet connector (240) is provided with a flow regulating valve (250).

11. An arthroscopic kit, characterized in that The arthroscopic kit comprises: An arthroscopic body (002) and the arthroscopic sheath (001) according to any one of claims 1-10, the arthroscopic body (002) is inserted into the insertion hole (201), and the arthroscopic body (002) is clamped and matched with the clamping end (322).

12. The arthroscopic kit according to claim 11, characterized in that: The arthroscopic body (002) comprises a handle (021), a connecting piece (022) and an insertion part (023) connected in sequence, and the insertion part (023) is inserted into the insertion hole (201); the connecting piece (022) is provided with a clamping groove (025), and the clamping end (322) is clamped and matched with the clamping groove (025).

13. The arthroscopic kit according to claim 12, characterized in that: The clamping groove (025) is arranged as an annular groove, and the clamping end (322) is rotatably matched with the annular groove in the circumferential direction of the insertion hole (201).

Images