Arthroscope sheathing canal and arthroscope suite

Abstract

An arthroscope sheathing canal and an arthroscope suite relate to the field of medical products, and comprise a sheathing canal body and a fastener. The sheath tube body is provided with a near port and a far port in the extending direction of the sheath tube body, and the near port is provided with a window. The buckling piece is fixed to the sheathing canal body and provided with two opposite side faces in the circumferential direction of the sheathing canal body, and a distance is formed between a partial area of at least one side face and the side wall of the window so that the interior of the sheathing canal body can be observed through the window. And the fastener is used for being clamped and matched with an obturator or an arthroscope body inserted into the sheathing canal body. According to the design of the arthroscope sheathing canal, the visual field of the near end of the sheathing canal body can be increased, so that the internal condition of a near port can be conveniently obtained, whether the near port leaks liquid or not can be timely mastered, and the operation safety is improved; meanwhile, the sheathing canal body and the arthroscope body are clamped and matched and are not easy to loosen.

Description

Technical Field

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

[0002] In clinical treatment, either the arthroscope body or the obturator is typically used in conjunction with the arthroscope sheath. When treatment is required, the arthroscope sheath is first inserted into the patient, and then the arthroscope body is inserted into the sheath to perform the treatment. When the arthroscope body is no longer needed, it is removed, and the obturator is inserted into the arthroscope sheath to seal it and prevent tissue leakage.

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

[0004] After the arthroscope body or obturator is inserted into the arthroscope sheath, the proximal end of the arthroscope sheath is safely blocked, making it impossible to visually assess whether there is leakage at the proximal end of the arthroscope sheath and to make timely adjustments. In addition, the arthroscope body is inserted into the arthroscope sheath, and the two rely solely on the frictional force between the arthroscope body and the arthroscope sheath for positioning. During the operation, the arthroscope body is prone to axial dislodgement relative to the arthroscope sheath, resulting in poor axial positional stability of the arthroscope body and high safety risks. Utility Model Content

[0005] The purpose of this invention includes, for example, providing an arthroscopic sheath and arthroscopic kit, which can increase the field of view at the proximal end of the sheath body, thereby facilitating the acquisition of the internal condition of the proximal port, enabling timely detection of whether there is leakage at the proximal port, and improving operational safety; at the same time, the sheath body and the arthroscopic body are interlocked and not easily loosened.

[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 sheath body has a proximal port and a distal port in its extending direction, the proximal port being provided with a window; the latch is fixed to the sheath body, the latch having two opposing sides in the circumferential direction of the sheath body, at least a portion of said side being spaced from the sidewall of the window to allow observation of the interior of the sheath body through the window; the latch is used to engage with an obturator or arthroscopic body inserted into the sheath body.

[0009] In an optional embodiment, the sheath body and the fastener are configured as an integral structure.

[0010] Based on the above solution, the overall structure has high strength, long service life, and is suitable for mass production, reducing processing and manufacturing costs.

[0011] In an optional embodiment, the fastening element includes a connecting block, a pressing plate, and a snap-fit ​​plate; the connecting block is fixed to the sheath body; the plate surface of the pressing plate near the sheath body is fixedly connected to the connecting block, and the pressing plate and the sheath body are spaced apart; the snap-fit ​​plate is fixedly connected to the side of the pressing plate near the proximal port; the snap-fit ​​plate is used to snap into engagement with an obturator or arthroscopic body inserted into the sheath body.

[0012] Based on the above scheme, the locking mechanism has a simple structure. Under normal conditions, part of the locking plate extends into the lumen of the sheath body, occupying part of the lumen's space. When the arthroscope body or obturator is inserted into the sheath body from the proximal end, the outer circumference of the arthroscope body or obturator pushes the locking plate away from the lumen of the sheath body. When the arthroscope body or obturator is inserted to the set position, that is, when the annular groove on the arthroscope body or obturator moves to the position of the locking plate, the locking plate moves inward to reset and engages with the annular groove, achieving automatic locking and positioning. When it is necessary to remove the obturator or arthroscope body, force is applied to the pressing plate, which can rotate relative to the sheath body, causing the locking plate to move away from the lumen and be pulled out from the annular groove, thus losing its constraint on the arthroscope body or obturator, allowing the arthroscope body and obturator to be easily removed.

[0013] In an optional embodiment, the snap-fit ​​plate is configured as an arc-shaped plate, and the side of the snap-fit ​​plate near the sheath body is configured as an inwardly concave arc surface.

[0014] Based on the above solution, the width of the snap-fit ​​plate is increased, the contact area with the annular slot is increased, and the snap-fit ​​effect is better.

[0015] In an optional embodiment, the pressing plate body includes an integral pressing plate portion and a gradient plate portion, the width of the gradient plate portion gradually decreasing in the direction from the far port to the near port; the gradient plate portion is located on the side of the connecting block near the near port, and the side of the gradient plate portion on the circumferential direction of the sheath body is spaced from the side wall of the window; the snap-fit ​​plate body is fixedly connected to the gradient plate portion, and the width of the snap-fit ​​plate body is greater than the width of the gradient plate portion.

[0016] Based on the above scheme, the design of the gradient plate ensures that it will not completely block the window when it is located in the window position, and a gap is formed between the gradient plate and the side wall of the window, which facilitates observation of the interior of the near port.

[0017] In an optional embodiment, the outer surface of the pressing plate is provided with an anti-slip structure.

[0018] Based on the above solution, it is less likely to slip when force is applied to the pressing plate, saving time and effort.

[0019] In an optional embodiment, a mounting groove is provided on the outer peripheral surface of the sheath body. The mounting groove has a first groove wall and a second groove wall connected together. The first groove wall faces the near port, and the second groove wall is located on the side of the first groove wall close to the near port. The second groove wall is spaced apart from the inner wall surface of the sheath body. The connecting block is engaged with the mounting groove and is simultaneously fixedly connected to the first groove wall and the second groove wall.

[0020] Based on the above solution, by setting the installation groove, the wall thickness of some sections of the sheath body can be reduced. When the connecting block is engaged in the installation groove, the connecting block utilizes the space of the installation groove, causing the position of the fastener to move a certain distance into the interior of the sheath body, thereby reducing the radial dimension of the arthroscopic sheath. The arthroscopic sheath has a compact structure, small size, and occupies little space, making it easy to store and use.

[0021] In an optional embodiment, a marking portion is provided on the outer peripheral surface of the sheath body.

[0022] Based on the above scheme, the design of the marking section enables rapid positioning of the arthroscope body or obturator and sheath body.

[0023] In an optional implementation, the number of the fasteners is set to one.

[0024] Based on the above solution, a single fastener allows for the connection between the sheath body and the arthroscope body, or between the sheath body and the obturator, enabling single-handed operation and reducing operational difficulty. Furthermore, it reduces manufacturing materials and lowers costs.

[0025] Secondly, this utility model provides an arthroscopy kit, the arthroscopy kit comprising:

[0026] The arthroscopic sheath as described in any of the foregoing embodiments.

[0027] The beneficial effects of this utility model embodiment include at least the following:

[0028] The arthroscopic sheath provided in this embodiment has a window at the proximal port of the sheath body. A fastener is installed on the sheath body near the proximal port. The structure of the fastener corresponds to the window, and there is a gap between the fastener and the side wall of the window on at least one side of the sheath body in the circumferential direction. That is, the fastener does not completely block the window. The design of the window not only provides space for the fastener to move relative to the sheath body, but also allows direct observation of the internal condition of the sheath body through the window position. It can intuitively and promptly obtain whether there is leakage at the proximal port of the sheath body, which is conducive to rapid adjustment and improves surgical safety. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a schematic diagram of the arthroscopic sheath according to an embodiment of this application;

[0031] Figure 2 for Figure 1 Enlarged schematic diagram of part of the image;

[0032] Figure 3 This is a schematic diagram of the first application of the arthroscopic sheath according to an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of a second application of the arthroscopic sheath according to an embodiment of this application.

[0034] icon:

[0035] 001-Closing device; 011-First annular groove; 002-Arthoscope body; 021-Second annular groove; 100-Sheath body; 101-Proximal port; 102-Distal port; 103-Window; 110-Mounting groove; 111-First groove wall; 112-Second groove wall; 120-Identification part; 200-Snap fastener; 210-Connecting block; 220-Pressing plate body; 221-Pressing plate part; 222-Gradient plate part; 223-Anti-slip structure; 230-Snap-fit ​​plate body; 231-Concave arc surface. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0041] 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.

[0042] In the prior art, after the arthroscope body 002 or the obturator 001 is inserted into the sheath body 100, the proximal port 101 of the sheath body 100 is completely blocked, making it impossible to directly observe whether there is leakage at the proximal end of the arthroscope sheath, and making timely adjustments impossible, which is inconvenient to operate.

[0043] In view of this, the designers have provided an arthroscopic sheath that allows observation of the internal condition of the sheath body 100 from near the proximal port 101, thereby enabling timely detection of any leakage at the proximal port 101 of the sheath body 100 and facilitating timely adjustments to the surgical strategy.

[0044] Please refer to Figure 1 and Figure 2This embodiment provides an arthroscopic sheath, including a sheath body 100 and a locking member 200. The sheath body 100 has a proximal port 101 and a distal port 102 in its extending direction, and the proximal port 101 is provided with a window 103. The locking member 200 is fixed to the sheath body 100 and has two opposing sides in the circumferential direction of the sheath body 100. At least a portion of one side is spaced from the sidewall of the window 103 to allow observation of the interior of the sheath body 100 through the window 103. The locking member 200 is used to engage with an obturator 001 or an arthroscopic body 002 inserted into the sheath body 100.

[0045] As described above, the arthroscopic sheath provided in this embodiment is used as follows:

[0046] Please combine Figure 3 and Figure 4 Under normal circumstances, the obturator 001 can be inserted into the arthroscopic sheath first. The locking device 200 on the arthroscopic sheath engages with the first annular groove on the obturator 001, achieving axial positioning. Then, the arthroscopic sheath and obturator 001 are placed together in the appropriate position within the patient's body. When surgery is required, the locking device 200 is opened, the obturator 001 is removed, and the arthroscopic body 002 is inserted into the sheath body 100 from the proximal port 101. Once the arthroscopic body 002 is inserted into the appropriate position, the second annular groove on the arthroscopic body 002 engages with the locking device 200, achieving axial positioning of the arthroscopic body 002 and the sheath body 100. The arthroscopic body 002 can then perform related procedures without easily dislodging from the proximal port 101 of the sheath body 100, ensuring safety and reliability.

[0047] Meanwhile, the design of the sheath body 100 and the fastener 200 ensures that there is a gap between the fastener 200 and the side wall of the window 103 at least one side of the sheath body 100 in the circumferential direction. That is, the fastener 200 does not completely block the window 103. The design of the window 103 not only provides space for the fastener 200 to move relative to the sheath body 100, but also allows direct observation of the internal condition of the sheath body 100 through the window 103. This allows for intuitive and timely detection of whether there is leakage at the proximal port 101 of the sheath body 100, facilitating rapid adjustments and improving surgical safety.

[0048] The following embodiments illustrate the details of the arthroscopic sheath of this application by way of example.

[0049] Please refer to Figure 1 and Figure 2In this embodiment, optionally, the arthroscopic sheath includes a sheath body 100 and a fastener 200. The sheath body 100 and the fastener 200 can be configured as an integral structure. For example, they can be integrally molded by injection molding or other methods, which has high structural strength, is not easily damaged, and is convenient to process and manufacture, suitable for mass production, thereby reducing processing and manufacturing costs.

[0050] Please refer to Figure 1 and Figure 2 In this embodiment, optionally, the sheath body 100 has a proximal port 101 and a distal port 102 in its axial direction. The proximal port 101 can be understood as the port closest to the surgeon during surgery, and the distal port 102 can be understood as the port located inside the patient's body during surgery. Unless otherwise specified, the proximal and distal ends of other components involved in this embodiment are referred to by this definition. The proximal port 101 of the sheath body 100 is provided with a window 103, which can be understood as a notch provided in the proximal port 101. The wall of the sheath body 100 in the area where the notch is located is cut off. That is, when forming the sheath body 100, no wall is formed at the location of the window 103. In this embodiment, the area of ​​the window 103 is approximately U-shaped, and the window 103 has two side walls in the circumferential direction of the sheath body 100 and a bottom wall located between the two side walls.

[0051] Please refer to Figure 2 Meanwhile, a mounting groove 110 is provided on the outer peripheral surface of the sheath body 100. The mounting groove 110 is located on the side of the window 103 away from the near port 101, and the mounting groove 110 can mate with the window 103. Specifically, the mounting groove 110 has a first groove wall 111 and a second groove wall 112 connected together. The first groove wall 111 faces the near port 101, and the second groove wall 112 is located on the side of the first groove wall 111 near the near port 101. The second groove wall 112 is spaced from the inner wall surface of the sheath body 100, and the side of the second groove wall 112 away from the first groove wall 111 extends to the bottom wall of the window 103, realizing the mating of the mounting groove 110 and the window 103. It should be understood that, due to the design of the mounting groove 110, the mounting space for the buckle 200 is provided, so that the position of the buckle 200 can be moved a certain distance toward the center of the sheath body 100. This makes the overall structure more compact in the radial direction and smaller in the radial dimension after the buckle 200 and the sheath body 100 are combined, which is conducive to storage and use.

[0052] Optionally, a marking portion 120 is also provided on the outer peripheral surface of the sheath body 100. The marking portion 120 can be configured as a protrusion or a groove. For example, in this embodiment, the marking portion 120 is configured as a strip-shaped protrusion, and the length of the marking portion 120 extends in the length direction of the sheath body 100. By providing the marking portion 120, a positional reference can be provided for the arthroscope body 002 and the obturator 001, which facilitates the rapid adjustment of the position of the arthroscope body 002 and the obturator 001 relative to the sheath body 100, thereby improving surgical efficiency.

[0053] Please refer to Figure 1 and Figure 2 In this embodiment, optionally, the fastener 200 includes a connecting block 210, a pressing plate 220, and a snap-fit ​​plate 230. The connecting block 210, the pressing plate 220, and the snap-fit ​​plate 230 are an integral structure with high structural strength, are not easily damaged, and are easy to manufacture. Simultaneously, the connecting block 210 snaps into the mounting groove 110 and is fixedly connected to the first groove wall 111 and the second groove wall 112. The mounting groove 110 provides installation space for the connecting block 210, reducing the overall structure's radial dimension in the sheath body 100. The pressing plate 220, near the sheath body 100, is fixedly connected to the connecting block 210, and there is a gap between the pressing plate 220 and the sheath body 100. The pressing plate has a proximal side near the near port 101 and a distal side near the far port 102. The connecting block 210 is located between the proximal and distal sides, both of which are suspended. The snap-fit ​​plate 230 is fixedly connected to the side of the pressing plate 220 near the proximal port 101, and a portion of the snap-fit ​​plate 230 extends into the lumen of the sheath body 100. The snap-fit ​​plate 230 is used to engage with the obturator 001 or the arthroscope body 002 inserted into the sheath body 100.

[0054] With this design, under normal conditions, part of the locking plate 230 extends into the lumen of the sheath body 100, occupying part of the lumen's space. When the arthroscope body 002 or the obturator 001 is inserted into the sheath body 100 from the proximal port 101, the outer circumferential surface of the arthroscope body 002 or the obturator 001 pushes the locking plate 230 away from the lumen of the sheath body 100. When the arthroscope body 002 or the obturator 001 is inserted to the set position, that is, when the first annular groove on the obturator 001 or the second annular groove 021 on the arthroscope body 002 moves to the position of the locking plate 230, the locking plate 230 moves inward to reset and engages with the first annular groove or the second annular groove, achieving automatic locking and positioning, which is convenient and flexible to operate. When it is necessary to remove the obturator 001 or the arthroscope body 002, force is applied to the pressing plate 220, which can rotate relative to the sheath body 100, causing the locking plate 230 to move away from the lumen and be pulled out from the first annular groove or the second annular groove, thus losing its constraint on the arthroscope body 002 or the obturator 001, and the arthroscope body 002 and the obturator 001 can be pulled out smoothly.

[0055] Please refer to Figure 1 and Figure 2 Optionally, the pressing plate body 220 includes an integral pressing plate portion 221 and a gradient plate portion 222. The pressing plate portion 221, on its surface away from the connecting block 210, is provided with an anti-slip structure 223. The anti-slip structure 223 may include multiple anti-slip grooves. When operating the pressing plate portion 221, the fingers contact the anti-slip structure 223, preventing slippage and saving time and effort. The width of the gradient plate portion 222 gradually decreases from the distal port 102 to the proximal port 101. The gradient plate portion 222 is located on the side of the connecting block 210 closest to the proximal port 101. Both sides of the gradient plate portion 222 in the circumferential direction of the sheath body 100 are spaced from the corresponding sidewall of the window 103. This allows for convenient observation of the interior of the sheath body 100 from both sides of the gradient plate portion 222 using the window 103. Due to the design of the gradient plate 222, the area of ​​the gradient plate 222 that obstructs the window 103 can be reduced, thereby facilitating observation of the interior of the sheath body 100.

[0056] Please refer to Figure 1 and Figure 2Optionally, the snap-fit ​​plate 230 is fixedly connected to the gradient plate portion 222, with the snap-fit ​​plate 230 and the gradient plate portion 222 being approximately perpendicular. The snap-fit ​​plate 230 is located on the side of the gradient plate portion 222 closest to the sheath body 100. Simultaneously, the width of the snap-fit ​​plate 230 is greater than the width of the gradient plate portion 222. The snap-fit ​​plate 230 can be configured as an arc-shaped plate, with the side of the snap-fit ​​plate 230 closest to the sheath body 100 configured as a concave arc surface 231. This increases the width of the snap-fit ​​plate 230, increasing the contact area with the annular groove and improving the snap-fit ​​effect. The width of the snap-fit ​​plate 230 can be understood as its circumferential dimension within the sheath body 100.

[0057] Correspondingly, both the first annular groove 011 and the second annular groove 021 are circular annular grooves. The concave arc surface 231 can engage with the convex arc surface of the first annular groove 011 or the second annular groove 021, resulting in a large contact area and a good engagement effect.

[0058] It should be noted that in this embodiment, the sheath body 100 and the locking element 200 are integrally formed by injection molding. The locking element 200 enables the sheath body 100 to engage with the arthroscope body 002 or the obturator 001, allowing for single-handed operation and reducing operational difficulty. Furthermore, it reduces manufacturing materials and lowers costs. Obviously, in some embodiments, the number of locking elements 200 is not limited to one.

[0059] The arthroscopic sheath provided in this embodiment allows for observation of the interior of the sheath body 100 through a window 103 at the proximal port 101, making it easier to visually determine whether there is leakage, thereby improving the flexibility and safety of the surgery.

[0060] This embodiment also provides an arthroscopy kit, which includes the arthroscopy sheath described above, and has advantages such as ease of use and safe and reliable operation.

[0061] 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 sheath body (100) has a proximal port (101) and a distal port (102) in the extension direction thereof, and the proximal port (101) is provided with a window (103); the buckle member (200) is fixed to the sheath body (100), and the buckle member (200) has two opposite sides in the circumferential direction of the sheath body (100), and at least a part of the side has a spacing with the side wall of the window (103) to observe the inside of the sheath body (100) through the window (103); and the buckle member (200) is used for clamping cooperation with a obturator (001) or an arthroscope body (002) inserted into the sheath body (100).

2. The arthroscope sheath according to claim 1, wherein: the sheath body (100) and the buckle member (200) are provided as an integrated structure.

3. The arthroscope sheath according to claim 1, wherein: the buckle member (200) comprises a connecting block (210), a pressing plate body (220) and a clamping plate body (230); the connecting block (210) is fixed to the sheath body (100); a plate surface of the pressing plate body (220) close to the sheath body (100) is fixedly connected with the connecting block (210), and the pressing plate body (220) has a spacing with the sheath body (100); the clamping plate body (230) is fixedly connected with a side of the pressing plate body (220) close to the proximal port (101); and the clamping plate body (230) is used for clamping cooperation with a obturator (001) or an arthroscope body (002) inserted into the sheath body (100).

4. The arthroscope sheath according to claim 3, wherein: the clamping plate body (230) is provided as an arc-shaped plate, and a side of the clamping plate body (230) close to the sheath body (100) is provided as a concave arc surface (231).

5. The arthroscope sheath according to claim 3, wherein: the pressing plate body (220) comprises an integrated pressing plate part (221) and a gradually-changing plate part (222), a width of the gradually-changing plate part (222) gradually decreases in a direction from the distal port (102) to the proximal port (101); the gradually-changing plate part (222) is located at a side of the connecting block (210) close to the proximal port (101), and a side of the gradually-changing plate part (222) in the circumferential direction of the sheath body (100) has a spacing with the side wall of the window (103); the clamping plate body (230) is fixedly connected with the gradually-changing plate part (222), and a width of the clamping plate body (230) is greater than a width of the gradually-changing plate part (222).

6. The arthroscope sheath according to claim 5, wherein: an outer plate surface of the pressing plate part (221) is provided with an anti-slip structure (223).

7. The arthroscope sheath according to claim 3, wherein: ​ ​ ​ ​ ​ ​ The outer peripheral surface of the sheath body (100) is provided with a mounting groove (110) having a first groove wall (111) connected with a second groove wall (112), the first groove wall (111) is towards the proximal end port (101), the second groove wall (112) is located on the side of the first groove wall (111) close to the proximal end port (101), and the second groove wall (112) has a spacing with the inner wall surface of the sheath body (100); the connecting block (210) is clamped in the mounting groove (110) and is fixedly connected with the first groove wall (111) and the second groove wall (112) at the same time.

8. The arthroscopic sheath according to any one of claims 1-7, characterized in that: The outer peripheral surface of the sheath body (100) is provided with a marking portion (120).

9. The arthroscopic sheath according to any one of claims 1-7, characterized in that: The number of the buckle members (200) is one.

10. An arthroscopic kit, characterized in that, The arthroscopic kit comprises: The arthroscopic sheath according to any one of claims 1-9.

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