Locking device and soft instrument sheathing canal

Abstract

The utility model discloses a locking device and a soft instrument sheathing canal, the device comprises a locking device, the locking device comprises a locking ring and a locking switch, the locking ring is of a non-closed-loop structure, the locking switch is used for connecting the two ends of the locking ring to enable the locking ring to form a closed-loop structure, the locking switch comprises a handle and a correction boss located on the inner side of the handle, and the correction boss is located on the outer side of the handle. External force is applied to the handle to open and close the locking switch so that the locking ring can be unlocked or locked, and when the locking ring is locked, the correction boss is used for correcting the locking ring to form a complete circular ring.

Description

Technical Field

[0001] The utility model relates to a locking device and a soft instrument sheath. Background Art

[0002] Minimally invasive surgery, as the name suggests, is surgery with minimal trauma. It refers to surgery performed using modern medical devices and related equipment such as laparoscopes and thoracoscopes. It has the characteristics of less trauma, less pain, and quick recovery.

[0003] During minimally invasive surgery, medical devices such as endoscopic devices and laparoscopic surgical instruments are introduced into the patient's body with the help of guiding equipment. Figure 1 A sheath for guiding an instrument into a patient's body is shown, the sheath comprising a channel platform and an incision protection cover, wherein the channel platform and the incision protection cover are respectively hollow tube structures, providing an instrument passage, the instrument enters from the channel platform, passes through the channel platform and the incision protection cover and then enters the patient's body; the incision protection cover is used to protect the patient's incision, and when in use, is located at the patient's incision to protect the incision.

[0004] At present, the channel platform and the incision protection cover are an integrated structure, which is not conducive to maintenance and cleaning. The use of a discrete structure is conducive to the maintenance and cleaning of each component. Based on this, the present application proposes a locking device. Utility Model Content

[0005] The utility model aims to provide a locking device, which can realize the sealed assembly of the channel platform and the incision protection cover, so as to solve the problem that the integrated structure of the channel platform and the incision protection cover is not conducive to maintenance and cleaning.

[0006] The locking device is a locking device, which is configured to include:

[0007] The locking ring is a non-closed-loop structure. The locking switch is used to connect the two ends of the locking ring to form a closed-loop structure. The locking switch includes a handle and a correction boss located between the handle and the locking ring. External force is applied to the handle to open and close the locking switch to unlock or lock the locking ring. When locking the locking ring, the correction boss is used to correct the locking ring to form a complete circular ring.

[0008] In an optional embodiment, the locking ring includes a first end and a second end, a fixing buckle is formed on the first end outward along the radial direction of the locking ring; a movable boss is formed on the second end, and the locking switch shaft connects the fixing buckle and the movable boss, and rotating the handle drives the movable boss to move to unlock or lock the locking ring.

[0009] In an optional embodiment, buckle structures are provided at corresponding positions of the handle and the locking ring to achieve locking of the locking ring and the handle.

[0010] In an optional embodiment, the handle is provided with a buckle hole, and a clip is provided at a corresponding position of the locking ring to form a buckle structure; or the handle is provided with a clip, and a buckle hole is provided at a corresponding position of the locking ring to form a buckle structure.

[0011] In an optional embodiment, the locking ring has a correction section between the buckle structure and the movable boss, the correction boss is connected to the correction section or the handle, and the correction boss corrects the correction section during the locking process.

[0012] In an optional embodiment, the correction boss includes a base portion and a working head, the base portion is arc-shaped; and the correction section is provided with a concave arc segment matching the working head.

[0013] A soft instrument sheath, characterized in that the sheath comprises: a channel platform, which is a hollow sac-like structure for providing an instrument passage; an operation channel for the instrument to enter and exit is installed on it; an incision protection cover for protecting the patient's incision; and a locking device for assembling the incision protection cover and the channel platform.

[0014] In an optional embodiment, the operating channel is configured as a plurality of channels with different diameters.

[0015] In an optional embodiment, the channel platform further includes an air intake pipe and a smoke pipe.

[0016] The beneficial effects of the utility model include:

[0017] The locking device realizes the sealed assembly of the channel platform and the incision protection cover, and the channel platform and the incision protection cover can be disassembled and assembled according to the situation, so as to facilitate the maintenance and cleaning of the channel platform and the incision protection cover.

[0018] The locking device is configured with a movable boss, a correction boss and a buckle structure to form a correction support, thereby ensuring the integrity of the overall arc of the locking ring, ensuring the air tightness of the channel platform and the incision protection sleeve, and further improving the locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, without paying creative work, they can also expand and apply based on these drawings without deviating from the principles and essence of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the existing sheath tube described in the utility model;

[0021] Figure 2A schematic structural diagram of the locking device provided by the utility model;

[0022] Figure 3 for Figure 2 2-2 partial enlarged view;

[0023] Figure 4 A locking state diagram of the locking device provided by the utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the soft instrument sheath provided by the utility model;

[0025] Figure 6 This is a structural exploded view of the soft instrument sheath provided by the utility model;

[0026] Figure 7 This is a schematic diagram of the non-correction boss structure of the soft instrument sheath provided by the utility model. DETAILED DESCRIPTION

[0027] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the disclosure will be comprehensive and complete and the concepts of the exemplary embodiments will be fully conveyed to those skilled in the art. In the drawings, the size of some elements may be exaggerated or deformed for clarity. The same reference numerals in the drawings represent the same or similar structures, and thus their detailed description will be omitted.

[0028] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, elements, etc. may be adopted. In other cases, known structures, methods or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

[0029] All other embodiments obtained by those skilled in the art based on the embodiments of the invention without creative work are within the scope of protection of this application. It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0030] Moreover, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a list of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of more restrictions, an element defined by the phrase "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0031] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be a component in the middle; when a component is referred to as being "fixed" to another component, it can be directly fixed to the other component or there can be a component in the middle, and it can be done by effective means such as bonding, welding, riveting, bolts, etc., which are not listed one by one in this application; when a component is referred to as being "movable" with another component, it can be done by rotation or sliding.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0033] Please refer to Figure 2 , 3 6. The locking device includes a locking ring 11 and a locking switch 12. The locking ring 11 is a non-enclosed structure, including a first end and a second end. The first end extends outward along the radial direction of the locking ring 11 to form at least one fixing buckle 13, and the present application has two fixing buckles 13. The fixing buckle 13 has a first pin hole 131. The second end is formed with a movable boss 14, and the movable boss 14 has a third pin hole 141. A clip 15 is provided at a certain distance from the movable boss 14, and a correction section 141 is provided between the movable boss 14 and the clip 15. The third pin hole 141 is provided as a runway-shaped pin hole.

[0034] The locking switch 12 includes a handle, which includes an assembly end, a handle end, and a correction boss 121 located on the side wall of the locking switch 12. The correction boss 121 is located on the inner side of the handle and is formed by the handle extending inward, or it can be formed by the corresponding position of the locking ring extending outward. The correction boss 121 and the handle or the locking ring can be integrally formed or connected by welding, bonding, etc.

[0035] A buckle hole 122 matching the clip 15 is provided on the handle end; the assembly end is arc-shaped, with a second pin hole 123 formed on one side connected to the handle end, and a fourth pin hole 124 formed on the other end. The first pin hole 131 is rotatably connected to the second pin hole 123 through the first rotating pin 16; the third pin hole 141 is rotatably connected to the fourth pin hole 124 through the second rotating pin 17. The locking switch 12 of this embodiment adopts a handle shape, and those skilled in the art should understand that other similar structures may also be adopted.

[0036] In an optional embodiment, a clip is provided on the handle, and buckle holes are provided at corresponding positions of the locking ring 11 to form a buckle structure.

[0037] Reference Figure 3 , 4. The correction boss 121 includes a base part 211 and a working head 210, the base part is arc-shaped; the movable boss 14 is a circular arc boss, and the locking device is configured with the movable boss 14 and the correction boss 121 and the buckle structure to form a correction support, and the locking effect is better.

[0038] When the locking switch 12 is closed, the handle is rotated toward the clip 15, and the second pin hole 123 rotates along the first rotating pin 16; the fourth pin hole 124 drives the third pin hole 141 through the second rotating pin 17, so that the locking ring becomes smaller and tightened. The locking ring 11 has a correction section 141 between the clip 15 and the movable boss 14. The correction boss 121 corrects the correction section 141 during the locking process, and the buckle hole 122 is buckled with the clip 15 to achieve locking. Figure 4 As shown. The correction section 141, the movable boss 14 and the correction boss 121 and the buckle structure form a correction support to ensure that the overall arc of the locking ring is complete, forming a complete circular locking ring, ensuring the air tightness of the channel platform and the incision protection cover, and further improving the locking effect. If the correction boss 121 is not provided, the correction section 141 of the locking ring will bend outward due to the outward pulling effect of the movable boss 14. In the locked state, the correction section 141 cannot form a complete circular ring, affecting the air tightness of the channel platform and the incision protection cover, and causing air leakage. Figure 7 As shown, without the correction boss, the correction section 141 of the locking ring will warp outward, and the correction section 141 cannot form a complete circular ring in the locked state. Especially during clinical use, the incision protection cover is subjected to a large incision pressure on the one hand, and on the other hand, the large-angle movement of the instrument causes the channel platform to deform, thereby causing the correction section 141 of the locking ring to warp outward more severely, which can easily affect the airtightness of the channel platform and the incision protection cover and cause air leakage.

[0039] The locking switch 12 is opened, and a force is applied to move the movable boss 14 in the opposite direction to the first end, so that the diameter of the locking ring 11 is expanded, thereby achieving unlocking.

[0040] Please refer to Figure 5-6 A soft instrument sheath, the sheath comprising: a channel platform 2, the channel platform 2 is a hollow sac-like structure, which is used to provide an instrument passage. When the locking device 1 is used to assemble the channel platform 2 and the incision protection cover 3, the locking device 1 and the channel platform 2 are first connected into an integrated structure by bonding, welding, etc., the locking device 1 is unlocked and is in an unlocked state, the incision protection cover 3 is sleeved in the locking ring 11, the locking switch 12 is turned toward the clip 15 to achieve locking, and the locking ring is reduced in diameter to apply a clamping force to the channel platform and the incision protection cover, and the assembly of the locking device 1, the channel platform 2 and the incision protection cover 3 is completed, so that the incision protection cover does not fall off.

[0041] The channel platform 2 is equipped with an operating channel 4 for inserting instruments. The operating channel 4 is configured with multiple different sizes according to the situation to meet the requirements of different instruments. The instruments here refer to probes with hoses, laparoscopic instruments, staplers, etc. The channel platform 2 can also be provided with an air intake pipe for carbon dioxide gas and a smoking pipe for smoking.

[0042] The present disclosure has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples for implementing the present disclosure. It must be pointed out that the disclosed embodiments do not limit the scope of the present disclosure. On the contrary, changes and modifications made without departing from the spirit and scope of the present disclosure are all within the scope of patent protection of the present disclosure.

Claims

1. A locking device, characterized in that: The device includes: The locking ring is a non-closed loop structure. The locking switch is used to connect the two ends of the locking ring so that the locking ring forms a closed loop structure. The locking switch includes a handle and a correction boss located between the handle and the locking ring. When the locking ring is locked, the correction boss is used to correct the locking ring to form a complete circular ring.

2. The locking device according to claim 1, characterized in that: The locking ring includes a first end and a second end, a fixing buckle is formed on the first end outward along the radial direction of the locking ring; a movable boss is formed on the second end, and the locking switch shaft connects the fixing buckle and the movable boss. Turning the handle drives the movable boss to move and thereby unlocks or locks the locking ring.

3. The locking device according to claim 1, characterized in that: Buckle structures are arranged at corresponding positions of the handle and the locking ring to achieve locking of the locking ring and the handle.

4. The locking device according to claim 3, characterized in that: The handle is provided with a buckle hole, and a clip is provided at a corresponding position of the locking ring to form a buckle structure; or the handle is provided with a clip, and a buckle hole is provided at a corresponding position of the locking ring to form a buckle structure.

5. The locking device according to claim 3, characterized in that: The locking ring has a correction section between the buckle structure and the movable boss, and the correction boss is connected to the correction section or the handle. The correction boss corrects the correction section during the locking process.

6. The locking device according to claim 5, characterized in that: The correction boss comprises a base part and a working head, wherein the base part is arc-shaped; and the correction section is provided with a concave arc section matching the working head.

7. A soft instrument sheath, characterized in that: The sheath includes: The channel platform is a hollow capsule-like structure used to provide a passage for instruments; an operating channel for the entry and exit of instruments is installed on it; An incision protection cover is used to protect the patient's incision; A locking device, used for assembling the incision protection sleeve and the channel platform; the locking device is the locking device described in any one of claims 1-6.

8. The soft instrument sheath according to claim 7, characterized in that: The operating channel is configured as operating channels of different diameters.

9. The soft instrument sheath according to claim 7, characterized in that: The channel platform also includes an air intake pipe and a smoke extraction pipe.

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