Body cavity blocking device and operating handle thereof

Abstract

A body cavity blocking device and an operating handle thereof. The operating handle comprises a fixed tube (100) and a traction tube (500), wherein the distal end of the fixed tube (100) is configured to connect to a guide wire sleeve (620) of a body cavity blocking device; the proximal end of the traction tube (500) is configured to fix a guide wire (610) of the body cavity blocking device; a cavity in the traction tube (500) and a cavity in the fixed tube (100) are both configured to accommodate and restrain the guide wire (610); the traction tube (500) is slidably connected to the fixed tube (100) in a sleeved manner; and when the traction tube (500) slides relative to the fixed tube (100), the traction tube (500) can pull or push the guide wire (610). When the distal end of the traction tube (500) is moved close to the distal end of the fixed tube (100) so as to axially unfold a blocking member (700), the traction tube (500) pushes the guide wire (610) located in its own cavity, causing the guide wire (610), which has entered the fixed tube (100) from the guide wire sleeve (620), to return into the guide wire sleeve (620), and during this process, both the inner wall of the cavity in the traction tube (500) and the inner wall of the cavity in the fixed tube (100) can restrain and limit the guide wire (610), so as to prevent the guide wire (610) from bending, thus solving the problem of the blocking member (700) not being able to fully unfold.

Description

Body cavity occlusion device and operating handle thereof Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a body cavity occluding device and an operating handle thereof. Background Art

[0002] Stones refer to solid masses formed in the ductal cavity or the cavity of cavity organs (such as the renal pelvis, ureter, bladder, gallbladder, bile duct or pancreatic duct, etc.) in the human body. Currently, minimally invasive surgery is mostly used to remove stones. The treatment method is to use corresponding tools under endoscopy to crush the stones, block the body cavity with a body cavity blocking device, and then move the body cavity blocking device to remove the stones from the body cavity.

[0003] In the prior art, a body cavity occlusion device includes an operating handle, a guidewire, and a occluding member. The operating handle pulls or pushes the guidewire to axially compress or expand the occluding member, thereby sealing or opening the body cavity. However, using the operating handle to push the guidewire to axially expand the occluding member can easily cause the guidewire to bend, which can prevent the occluding member from fully expanding. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a body cavity occlusion device and an operating handle thereof, which can solve the problem that the occlusion member cannot be fully deployed when the operating handle is used to push the guide wire.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides an operating handle for a body cavity occluding device, comprising a fixed tube and a traction tube, wherein the distal end of the fixed tube is used to connect to the guide wire sleeve of the body cavity occluding device, and the proximal end of the traction tube is used to fix the guide wire of the body cavity occluding device, and the cavity in the traction tube and the cavity in the fixed tube are both used to accommodate and constrain the guide wire.

[0007] The traction tube is slidably sleeved with the fixed tube. When the traction tube slides relative to the fixed tube, the traction tube can pull or push the guide wire.

[0008] In a second aspect, an embodiment of the present application provides a body cavity occluding device, comprising the operating handle as described above.

[0009] In the embodiment of the present application, the operating handle includes a fixed tube and a traction tube that are slidably connected. When the operating handle is used, the distal end of the fixed tube can be connected to the guide wire sleeve, and the proximal end of the traction tube can be fixedly connected to the proximal end of the guide wire. Since both the fixed tube and the traction tube have cavities, and the cavities of both are used to accommodate the guide wire, when the distal end of the traction tube moves away from the distal end of the fixed tube, thereby axially compressing the sealing member of the occluding device, the part of the guide wire located in the operating handle will enter the cavity in the traction tube, or remain in the cavity in the traction tube, and the part of the guide wire located in the guide wire sleeve will enter the cavity in the fixed tube; when the distal end of the traction tube moves toward the distal end of the fixed tube, thereby axially expanding the sealing member, the traction tube pushes the guide wire located in its own cavity, so that the guide wire that enters the fixed tube from the guide wire sleeve returns to the guide wire sleeve. During this process, the inner wall of the cavity in the traction tube and the inner wall of the cavity in the fixed tube can both constrain and limit the guide wire, thereby preventing the guide wire from bending, thereby solving the problem that the sealing member cannot be fully expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic structural diagram of an operating handle of a traction tube disclosed in an embodiment of the present application when the guide wire is pushed to a second limit position;

[0011] FIG2 is an exploded schematic diagram of the operating handle disclosed in an embodiment of the present application;

[0012] FIG3 is an enlarged schematic diagram of point A in FIG2 of the present application;

[0013] FIG4 is an enlarged schematic diagram of point B in FIG2 of the present application;

[0014] FIG5 is an enlarged schematic diagram of point C in FIG2 of the present application;

[0015] FIG6 is a cross-sectional view of the operating handle of the traction tube disclosed in an embodiment of the present application when the guide wire is pushed to the second limit position;

[0016] FIG7 is an enlarged schematic diagram of point D in FIG6 of the present application;

[0017] FIG8 is an enlarged schematic diagram of point E in FIG6 of the present application;

[0018] FIG9 is an enlarged schematic diagram of point F in FIG6 of the present application;

[0019] FIG10 is a schematic structural diagram of the operating handle of the traction tube disclosed in an embodiment of the present application when the guidewire is pulled to the first extreme position;

[0020] FIG11 is a cross-sectional view of the operating handle of the traction tube disclosed in an embodiment of the present application when the guidewire is pulled to the first extreme position;

[0021] FIG12 is an enlarged schematic diagram of point G in FIG11 of the present application;

[0022] FIG13 is a schematic structural diagram of the body cavity occluding device disclosed in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] 100, fixed tube; 200, inner tube; 210, first clamping arm; 211, first guide surface; 300, outer tube; 310, first clamping protrusion; 320, first matching portion; 330, third clamping protrusion; 340, fifth clamping protrusion; 400, first locking member; 410, second clamping protrusion; 500, traction tube; 501, first clamping groove; 502, second clamping groove; 510, first limiting portion; 511, second guide surface; 520, elastic arm; 530, fourth clamping protrusion; 540, sixth clamping protrusion; 550, tube body; 551, second clamping arm; 560, second locking member; 570, second guide portion; 610, guide wire; 620, guide wire sleeve; 700, blocking member. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0027] The body cavity occluding device and its operating handle provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0028] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the body cavity occlusion device and its components relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0029] As shown in Figures 1 to 12, an embodiment of the present application discloses an operating handle of a body cavity occluding device, comprising a fixed tube 100 and a traction tube 500. The distal end of the fixed tube 100 is used to connect to a guide wire sleeve 620 of the body cavity occluding device, and the proximal end of the traction tube 500 is used to fix the guide wire 610 of the body cavity occluding device. The cavity within the traction tube 500 and the cavity within the fixed tube 100 are both used to accommodate and constrain the guide wire 610. Optionally, the distal end of the fixed tube 100 can be fixedly connected to or abutted against the guide wire sleeve 620, which can be flexibly selected when specifically applying the operating handle of the present application.

[0030] The traction tube 500 is slidably coupled to the fixed tube 100. When the traction tube 500 slides relative to the fixed tube 100, the traction tube 500 can pull or push the guidewire 610. Specifically, when the distal end of the traction tube 500 moves away from the distal end of the fixed tube 100, the traction tube 500 pulls the guidewire 610; when the distal end of the traction tube 500 moves toward the distal end of the fixed tube 100, the traction tube 500 pushes the guidewire 610.

[0031] In the embodiment of the present application, the operating handle includes a fixed tube 100 and a traction tube 500 that are slidably connected. When the operating handle is used, the distal end of the fixed tube 100 can be connected to the guide wire sleeve 620, and the proximal end of the traction tube 500 can be fixedly connected to the proximal end of the guide wire 610. Since both the fixed tube 100 and the traction tube 500 have cavities, and the cavities of both are used to accommodate the guide wire 610, when the distal end of the traction tube 500 moves away from the distal end of the fixed tube 100, thereby causing the blocking member 700 of the blocking device to be axially compressed, the part of the guide wire 610 located in the operating handle will be pulled into the cavity in the traction tube 500, or remain in the traction tube 500. 00, and the guide wire 610 partially located in the guide wire sleeve 620 will be pulled into the cavity in the fixed tube 100; when the distal end of the traction tube 500 moves toward the distal end close to the fixed tube 100, thereby causing the blocking piece 700 to expand axially, the traction tube 500 pushes the guide wire 610 located in its own cavity, so that the guide wire 610 that enters the fixed tube 100 from the guide wire sleeve 620 returns to the guide wire sleeve 620. During this process, the inner wall of the cavity in the traction tube 500 and the inner wall of the cavity in the fixed tube 100 can both constrain and limit the guide wire 610, thereby preventing the guide wire 610 from bending, so as to solve the problem that the blocking piece 700 cannot be fully expanded.

[0032] It should be noted that the traction tube 500 can be sleeved outside the fixed tube 100. In this case, before the distal end of the traction tube 500 moves away from the distal end of the fixed tube 100, the portion of the guide wire 610 located within the operating handle is located within the fixed tube 100. Alternatively, the fixed tube 100 can be sleeved outside the traction tube 500. In this case, before the distal end of the traction tube 500 moves away from the distal end of the fixed tube 100, the portion of the guide wire 610 located within the operating handle is located within the traction tube 500.

[0033] In an optional embodiment, please refer to Figures 2 and 6, the fixed tube 100 includes an inner tube 200 and an outer tube 300, the outer tube 300 is fixedly sleeved on the outside of the inner tube 200, the distal end of the inner tube 200 is used to be connected to the guide wire sleeve 620, the cavity in the inner tube 200 is used to accommodate and constrain the guide wire 610, and the traction tube 500 is slidably sleeved on the outside of the inner tube 200 and is located inside the outer tube 300. In the embodiment of the present application, the fixed tube 100 includes an inner tube 200 and an outer tube 300, and the traction tube 500 is slidably sleeved between the inner tube 200 and the outer tube 300. In this case, the inner tube 200 and the outer tube 300 can both guide the sliding of the traction tube 500, thereby improving the stability of the traction tube 500 during the sliding process; in addition, since the outer tube 300 is sleeved on the outside of the traction tube 500, the surgeon can hold the outer tube 300 and then pull the traction tube 500, which is convenient for the surgeon to operate, and since the size of the inner tube 200 used to constrain the guide wire 610 is small, the size of the cavity formed in the fixed tube 100 is also small, which can enhance the restraining effect of the inner tube 200 on the guide wire 610, thereby further preventing the guide wire 610 from bending and deforming during the pushing process. Of course, the fixed tube 100 of the present application may also include only the inner tube 200 but not the outer tube 300. In this case, the inner tube 200 is sleeved inside the traction tube 500. Alternatively, the fixed tube 100 may also include only the outer tube 300 but not the inner tube 200. In this case, the outer tube 300 is sleeved outside the traction tube 500.

[0034] In an optional embodiment, please refer to Figures 2 and 9, the distal end of the inner tube 200 is provided with at least two first clamping arms 210 at intervals along the circumference of the inner tube 200, and the at least two first clamping arms 210 are surrounded to form a first space for accommodating the guide wire sleeve 620, and the fixed tube 100 also includes a first locking member 400, and the first locking member 400 can move relative to the inner tube 200. When the first locking member 400 moves relative to the inner tube 200, the first locking member 400 presses each first clamping arm 210, and each first clamping arm 210 can jointly clamp and fix the guide wire sleeve 620. In this embodiment, at least two first clamping arms 210 are surrounded to form a first space. When the operating handle of the embodiment of the present application is used, the proximal end of the guide wire sleeve 620 can be inserted into the first space, and then the first locking member 400 is controlled to move in the positive direction relative to the inner tube 200, so that the first locking member 400 presses each first clamping arm 210. When the first clamping arm 210 is under pressure, it will deform in the direction close to the guide wire sleeve 620, thereby clamping the guide wire sleeve 620, thereby achieving the purpose of fixing the guide wire sleeve 620; the first locking member 400 is controlled to move in the reverse direction (the reverse direction and the forward direction are opposite to each other) relative to the inner tube 200, so that the first locking member 400 releases each first clamping arm 210, and the first clamping arm 210 will restore its deformation, thereby releasing the guide wire sleeve 620. It can be seen that the embodiment of the present application can fix or release the guide wire sleeve 620 by controlling the first locking member 400 to move in the positive direction or the negative direction. This not only simplifies the operation, but also makes the guide wire sleeve 620 detachable from the inner tube 200, thereby facilitating the replacement of the guide wire sleeve 620 or the inner tube 200. It should be noted that the first locking member 400 moves in the positive direction relative to the inner tube 200. The positive direction here can be a direction extending from the proximal end to the distal end of the fixed tube 100, or can also be a direction extending from the distal end to the proximal end of the fixed tube 100.

[0035] Of course, the fixed tube 100 of the present application may not include the first locking member 400. In this case, the guide wire sleeve 620 may be fixedly connected to the inner tube 200 by gluing, hot melting, or the like.

[0036] In some embodiments, at least one of the first clamping arm 210 and the first locking member 400 has a first guide surface 211. During the movement of the first locking member 400, the first locking member 400 can press the first clamping arm 210 via the first guide surface 211. Specifically, taking the example of both the first clamping arm 210 and the first locking member 400 having first guide surfaces 211, the first guide surface 211 of the first locking member 400 can press the first guide surface 211 of the first clamping arm 210, thereby deforming the first clamping arm 210 to clamp the guide wire sleeve 620. In the case where the positive direction described above is the direction extending from the distal end to the proximal end of the fixed tube 100, the distance between the first guide surface 211 and the axis of the operating handle gradually increases in the direction extending from the distal end to the proximal end of the operating handle. In this case, the first guide surface 211 can be a flat surface, a curved surface, a frustum, or the like.

[0037] In an optional embodiment, please refer to Figures 3 and 9, the first locking member 400 is connected to the outer tube 300 and can move relative to the outer tube 300, the outer tube 300 is provided with a first clamping protrusion 310, and the first locking member 400 is provided with a second clamping protrusion 410, the first clamping protrusion 310 and the second clamping protrusion 410 are engaged with each other, so that the first locking member 400 and the outer tube 300 are engaged in the direction extending from the proximal end to the distal end of the fixed tube 100. That is to say, after the second clamping protrusion 410 and the first clamping protrusion 310 are engaged with each other, that is, when the second clamping protrusion 410 is closer to the proximal end of the fixed tube 100 relative to the first clamping protrusion 310, the first locking member 400 can move relative to the outer tube 300 to press the first clamping arm 210. In this embodiment, the outer tube 300 is provided with a first locking protrusion 310, and the first locking member 400 is provided with a second locking protrusion 410. After the second locking protrusion 410 engages with the first locking protrusion 310, the first locking member 400 can move relative to the outer tube 300 to press the first clamping arm 210. Moreover, after the second locking protrusion 410 engages with the first locking protrusion 310, the two engage in a limit position in a direction extending from the proximal end to the distal end of the fixed tube 100. Therefore, this embodiment can prevent the first locking member 400 from being separated from the outer tube 300. Of course, the first locking member 400 can also be connected to the inner tube 200, and this application is not limited to this.

[0038] It should be noted that, in the case of this embodiment combined with the technical solution described below that "the traction tube 500 includes a tube body 550 and a second locking member 560, and the proximal end of the tube body 550 is provided with at least two second clamping arms 551 at intervals along the circumference of the tube body 550", the first locking member 400 is controlled to release each first clamping arm 210, and the second locking member 560 is controlled to release each second clamping arm 551. In this case, the distal end of the inner tube 200 is disconnected from the guide wire sleeve 620, and the proximal end of the traction tube 500 is disconnected from the guide wire 610. In this way, the operating handle can be moved axially to separate the operating handle from the guide wire sleeve 620 and the guide wire 610, thereby removing the operating handle to meet the needs of more surgical scenarios.

[0039] And / or, in an optional embodiment, the first locking member 400 is sleeved on the outside of the outer tube 300 and is threadedly connected to the outer tube 300. When the first locking member 400 presses each first clamping arm 210, the outer tube 300 and the inner tube 200 are fixedly connected by the friction between the first locking member 400 and the first clamping arm 210. In this embodiment, the first locking member 400 is sleeved on the outside of the outer tube 300 and is threadedly connected to the outer tube 300. Therefore, rotating the first locking member 400 can make the first locking member 400 move relative to the outer tube 300, so that the first locking member 400 can press the first clamping arm 210, and the first clamping arm 210 clamps and fixes the guide wire sleeve 620. In this case, there is friction between the guide wire sleeve 620 and the first clamping arm 210, as well as between the first clamping arm 210 and the first locking member 400, and the guide wire sleeve 620 and the first clamping arm 210, as well as the first clamping arm 210 and the first locking member 400 are fixedly connected by the above-mentioned friction, and the first locking member 400 is threadedly connected to the outer tube 300, so that the fixation between the outer tube 300 and the inner tube 200 can be achieved. It can be seen that in this embodiment, the outer tube 300 and the inner tube 200 are fixed by the friction between the first locking member 400 and the first clamping arm 210. In this way, there is no need to use other connecting structures to fix the outer tube 300 and the inner tube 200, thereby achieving the purpose of simplifying the structure of the operating handle. After the first locking member 400 releases the first clamping arm 210, the outer tube 300 can be separated from the inner tube 200, which makes it easy to replace the inner tube 200 or the outer tube 300.

[0040] It should be noted that when this embodiment is combined with the previous embodiment, the first locking member 400 can only be threadedly connected to the outer tube 300 and thus move relative to the outer tube 300 after the second locking protrusion 410 is engaged with the first locking protrusion 310. Of course, the fixed tube 100 may also not include the first locking member 400. In this case, the inner tube 200 and the outer tube 300 can be fixedly connected by bonding, welding, or the like.

[0041] If the traction tube 500 is detached from the fixed tube 100 during the process of pulling the guide wire 610, a gap will be generated between the traction tube 500 and the fixed tube 100. The guide wire 610 will not be constrained by the traction tube 500 and the fixed tube 100 relative to the gap. Therefore, when the traction tube 500 pushes the guide wire 610, this part of the guide wire 610 is prone to bend, thereby causing the blocking piece 700 to be unable to be fully deployed. Therefore, in an optional embodiment, please refer to Figures 6 and 12. A first limiting portion 510 is provided on the traction tube 500, and a first matching portion 320 is provided on the fixed tube 100. When the traction tube 500 pulls the guide wire 610 to the first extreme position, the first matching portion 320 stops the first limiting portion 510 in the direction extending from the distal end to the proximal end of the fixed tube 100. In this embodiment, the traction tube 500 is provided with a first stopper 510, and the fixed tube 100 is provided with a first mating portion 320. The first mating portion 320 acts as a stopper against the first stopper 510, thereby preventing the traction tube 500 from being disengaged from the fixed tube 100. This allows the traction tube 500 and the fixed tube 100 to maintain their restraint on the guidewire 610, further resolving the issue of the blocking member 700 being unable to fully deploy. Furthermore, when the traction tube 500 pulls the guidewire 610 to the first limit position, the blocking member 700, which is fixedly connected to the distal end of the guidewire 610, is fully compressed. Further pulling of the guidewire 610 could result in excessive compression of the blocking member 700, potentially damaging it. This embodiment utilizes the first mating portion 320 and the first stopper 510 to address the issue of easily damaged blocking member 700. It should be noted that the first mating portion 320 can be provided on either the outer tube 300 or the inner tube 200.

[0042] In an optional embodiment, please continue to refer to Figure 12, the first matching portion 320 protrudes from the inner circumference of the outer tube 300, and the distal end of the traction tube 500 is provided with an elastic arm 520, and the elastic arm 520 is provided with a first limiting portion 510 protruding on the side of the inner circumference of the outer tube 300. When the traction tube 500 pulls the guide wire 610 to the first extreme position, the inner tube 200 and at least part of the elastic arm 520 are arranged opposite to each other, and the inner tube 200 limits the deformation of the elastic arm 520. In this embodiment, an elastic arm 520 extends from the distal end of the traction tube 500, and the first limiting portion 510 is provided on the elastic arm 520. Since the elastic arm 520 can generate elastic deformation, during the process of assembling the traction tube 500 between the outer tube 300 and the inner tube 200, the first matching portion 320 can press the elastic arm 520 to elastically deform the elastic arm 520, thereby facilitating the first limiting portion 510 on the elastic arm 520 to pass over the first matching portion 320, thereby facilitating the assembly of the traction tube 500 between the outer tube 300 and the inner tube 200; and, when the traction tube 500 pulls the guide wire 610 to the first extreme position, the inner tube 200 and at least a portion of the elastic arm 520 are arranged opposite to each other. At this time, the inner tube 200 can prevent the elastic arm 520 from deforming, thereby preventing the first limiting portion 510 on the elastic arm 520 from being disengaged from the limiting matching with the first matching portion 320, thereby ensuring the limiting stability between the first limiting portion 510 and the first matching portion 320. Further, referring to Figure 4, at least one of the elastic arm 520 and the first limiting portion 510 is provided with a second guide surface 511, and the first matching portion 320 presses the elastic arm 520 through the second guide surface 511. The second guide surface 511 can be a slope, a frustum, an arc surface, etc.

[0043] After the traction tube 500 pulls the guide wire 610 to the first extreme position, in order to make the traction tube 500 maintain its own position and thus keep the sealing member 700 in a fully compressed state, in an optional embodiment, please refer to Figures 4 and 12, one of the traction tube 500 and the outer tube 300 is provided with a first clamping groove 501, and the other is provided with a third clamping protrusion 330, and the one of the traction tube 500 and the outer tube 300 that is provided with the first clamping groove 501 is provided with at least two fourth clamping protrusions 530, and a first clamping groove 501 is formed between two adjacent fourth clamping protrusions 530, and when the traction tube 500 pulls the guide wire 610 to the first extreme position, the third clamping protrusion 330 is engaged with the first clamping groove 501. In this embodiment, one of the traction tube 500 and the outer tube 300 is provided with a first clamping groove 501, and the other is provided with a third clamping protrusion 330. When the traction tube 500 pulls the guide wire 610 to the first extreme position, the third clamping protrusion 330 is engaged with the first clamping groove 501. At this time, the position between the traction tube 500 and the outer tube 300 is relatively fixed, so that the traction tube 500 can maintain its own position to keep the sealing member 700 in a fully compressed state.

[0044] When the traction tube 500 pushes the guide wire 610 to the second extreme position, the blocking piece 700 fixedly connected to the distal end of the guide wire 610 will be fully expanded. In this case, if the traction tube 500 further pushes the guide wire 610, it may cause the blocking piece 700 to be over-stretched or the distal end of the guide wire 610 to bend, thereby causing the blocking piece 700 or the guide wire 610 to be damaged. In an optional embodiment, a second limiting portion is provided on the traction tube 500, and a second matching portion is provided on the fixed tube 100. When the traction tube 500 pushes the guide wire 610 to the second extreme position, the second matching portion stops the second limiting portion in the direction extending from the proximal end to the distal end of the fixed tube 100. In this embodiment, a second stopper is provided on the traction tube 500, and a second mating portion is provided on the fixed tube 100. The second mating portion can stop and limit the second stopper, thereby preventing the distal end of the traction tube 500 from moving further toward the distal end of the fixed tube 100, thereby preventing the traction tube 500 from further pushing the guidewire 610, thereby preventing the blocking member 700 from being overstretched or the distal end of the guidewire 610 from bending. Specifically, referring to Figure 7, the second stopper can be the second locking member 560, and the second mating portion can be the proximal end surface of the outer tube 300; of course, the second stopper and the second mating portion can also be other stopper structures, and this application is not limited thereto.

[0045] After the traction tube 500 pushes the guide wire 610 to the second extreme position, in order to keep the traction tube 500 in its own position, so that the sealing member 700 remains in a fully expanded state, and / or, in an optional embodiment, please refer to Figures 5 and 8, one of the traction tube 500 and the fixed tube 100 is provided with a second card groove 502, and the other is provided with a fifth card protrusion 340, and the one of the traction tube 500 and the fixed tube 100 provided with the second card groove 502 is provided with at least two sixth card protrusions 540, and a second card groove 502 is formed between two adjacent sixth card protrusions 540. When the traction tube 500 pushes the guide wire 610 to the second extreme position, the fifth card protrusion 340 is engaged with the second card groove 502. In this embodiment, one of the traction tube 500 and the outer tube 300 is provided with a second latching groove 502, and the other is provided with a fifth latching protrusion 340. When the traction tube 500 pushes the guidewire 610 to the second limit position, the fifth latching protrusion 340 engages with the second latching groove 502. At this point, the position of the traction tube 500 and the outer tube 300 is relatively fixed, thereby allowing the traction tube 500 to maintain its position and the blocking member 700 to remain in a fully deployed state. It should be noted that one of the at least two sixth latching protrusions 540 can be the first mating portion 320 described above.

[0046] In an optional embodiment, referring to Figures 2, 6, and 7, the traction tube 500 includes a tubular body 550 and a second locking member 560. The proximal end of the tubular body 550 is provided with at least two second clamping arms 551 spaced apart along the circumference of the tubular body 550. The at least two second clamping arms 551 surround and form a second space for accommodating the guide wire 610. The second locking member 560 is connected to the proximal end of the tubular body 550 and is movable relative to the tubular body 550. When the second locking member 560 moves relative to the tubular body 550, the second locking member 560 presses each second clamping arm 551, and each second clamping arm 551 can jointly clamp and fix the guide wire 610. Optionally, the second locking member 560 and the tubular body 550 can be connected by a thread.

[0047] In this embodiment, at least two second clamping arms 551 are surrounded to form a second space. When the operating handle of the embodiment of the present application is used, the distal end of the guide wire 610 can be inserted into the second space, and then the second locking member 560 is controlled to move in the positive direction relative to the tube body 550, so that the second locking member 560 presses each second clamping arm 551. When the second clamping arm 551 is under pressure, it will deform in the direction close to the guide wire 610, thereby clamping the guide wire 610, thereby achieving the purpose of fixing the guide wire 610; the second locking member 560 is controlled to move in the reverse direction (the reverse direction is opposite to the forward direction) relative to the tube body 550, so that the second locking member 560 releases each second clamping arm 551, and the second clamping arm 551 will restore its deformation, thereby releasing the guide wire 610. It can be seen that the embodiment of the present application can fix or release the guide wire 610 by controlling the second locking member 560 to move in the positive direction or the negative direction. This not only simplifies operation, but also makes the guide wire 610 detachable from the traction tube 500, thereby facilitating replacement of the guide wire 610 or the traction tube 500. It should be noted that the second locking member 560 moves in the positive direction relative to the tube body 550. The positive direction here can be a direction extending from the proximal end to the distal end of the fixed tube 100, or from the distal end to the proximal end of the fixed tube 100.

[0048] Of course, the traction tube 500 of the present application may also not include the second clamping arm 551 and the second locking member 560. In this case, the guide wire 610 can be fixedly connected to the tube body 550 by gluing, hot melting, etc.

[0049] Furthermore, when the operating handle of the embodiment of the present application is specifically used, the proximal end of the guidewire 610 can be passed through the second locking member 560 and out of the operating handle. In this application, the connection between the guidewire 610 and the traction tube 500 is defined as the first connection, and the connection between the guidewire 610 and the blocking member 700 is defined as the second connection. In this way, the length of the guidewire 610 between the first connection and the second connection can be controlled by controlling the length of the guidewire 610 passing through the operating handle, thereby ensuring that the blocking member 700 can be fully expanded or compressed. Furthermore, the guidewire 610 located outside the operating handle is bent relative to the guidewire 610 located inside the operating handle. This prevents the guidewire 610 from rotating around its own axis, thereby preventing the blocking member 700 from being entangled with the distal end of the guidewire 610, thereby preventing the flexible blade from being entangled with the distal end of the guidewire 610, thereby reducing the follow-up performance of the flexible blade.

[0050] Optionally, the guide wire 610 has an anti-slip structure, and the second clamping arm 551 can clamp the anti-slip structure, thereby improving the connection stability between the second clamping arm 551 and the guide wire 610. The anti-slip structure can be an anti-slip groove or an anti-slip protrusion.

[0051] In some embodiments, at least one of the second clamping arm 551 and the second locking member 560 has a third guide surface. During the movement of the second locking member 560, the second locking member 560 can press the second clamping arm 551 via the third guide surface. Specifically, taking the example of both the second clamping arm 551 and the second locking member 560 having third guide surfaces, the third guide surface of the second locking member 560 can press the third guide surface of the second clamping arm 551, thereby causing the second clamping arm 551 to deform and clamp the guide wire sleeve 620. In the case where the positive direction described above is the direction extending from the proximal end to the distal end of the fixed tube 100, the distance between the third guide surface and the axis of the operating handle gradually decreases in the direction extending from the distal end to the proximal end of the operating handle. In this case, the third guide surface can be a flat surface, a curved surface, a frustum, etc.

[0052] In the above embodiment, if the traction tube 500 rotates relative to the fixed tube 100, the traction tube 500 will drive the guide wire 610 to rotate. When the sealing member 700 is a flexible blade, the flexible blade will be wrapped around the guide wire 610, and the thickness of the flexible blade after wrapping will increase, which will cause the follow-up performance of the flexible blade to deteriorate.

[0053] And / or, in an optional embodiment, referring to Figures 2, 4, and 5, a first guide portion (not shown) is provided on the fixed tube 100, and a second guide portion 570 is provided on the traction tube 500. At least one of the first guide portion and the second guide portion 570 extends axially along the fixed tube 100, and the first guide portion and the second guide portion 570 are slidably engaged. In this embodiment, the first guide portion is provided on the fixed tube 100, and the second guide portion 570 is provided on the traction tube 500. The first guide portion and the second guide portion 570 are slidably engaged. In this way, the engagement between the first guide portion and the second guide portion 570 prevents relative rotation between the traction tube 500 and the fixed tube 100, thereby resolving the problem of the flexible blade being entangled with the guide wire 610. It should be noted that the first guide portion here can be provided on either the inner tube 200 or the outer tube 300.

[0054] Optionally, the first guide portion may be a guide protrusion / guide recess, and the second guide portion 570 may be a guide recess or a guide protrusion.

[0055] As shown in Figure 13, the embodiment of the present application further discloses a body cavity occlusion device, comprising an operating handle as described in any of the above embodiments. Specifically, the body cavity occlusion device further comprises a guide wire sleeve 620, a guide wire 610, and a occlusion member 700. The proximal end of the guide wire sleeve 620 is connected to the distal end of the fixed tube 100, and the proximal end of the occlusion member 700 is connected to the distal end of the guide wire sleeve 620. The distal end of the guide wire 610 sequentially passes through the operating handle and the guide wire sleeve 620 and is fixedly connected to the distal end of the occlusion member 700. In this way, the occlusion member 700 can be compressed or expanded by pulling or pushing the guide wire 610.

[0056] In the embodiment of the present application, the operating handle includes a fixed tube 100 and a traction tube 500 that are slidably connected. When the operating handle is used, the distal end of the fixed tube 100 can be connected to the guide wire sleeve 620, and the proximal end of the traction tube 500 can be fixedly connected to the proximal end of the guide wire 610. Since both the fixed tube 100 and the traction tube 500 have cavities, and the cavities of both are used to accommodate the guide wire 610, when the traction tube 500 moves away from the distal end of the fixed tube 100, thereby axially compressing the blocking member 700 of the blocking device, the part of the guide wire 610 located in the operating handle will enter the cavity in the traction tube 500, or remain in the traction tube 500. 0, and the guide wire 610 partially located in the guide wire sleeve 620 will enter the cavity in the fixed tube 100; when the traction tube 500 moves toward the distal end close to the fixed tube 100, thereby causing the blocking piece 700 to expand axially, the traction tube 500 pushes the guide wire 610 located in its own cavity, so that the guide wire 610 that enters the fixed tube 100 from the guide wire sleeve 620 returns to the guide wire sleeve 620. During this process, the inner wall of the cavity in the traction tube 500 and the inner wall of the cavity in the fixed tube 100 can both constrain and limit the guide wire 610, thereby preventing the guide wire 610 from bending, so as to solve the problem that the blocking piece 700 cannot be fully expanded.

[0057] The above embodiments of the present application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here. The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of this application and the claims, all of which are within the protection of this application.

Claims

1. An operating handle of a body cavity blocking device, characterized in that: The invention comprises a fixing tube (100) and a traction tube (500), wherein the distal end of the fixing tube (100) is used to be connected to a guide wire sleeve (620) of a body cavity blocking device, and the proximal end of the traction tube (500) is used to fix a guide wire (610) of the body cavity blocking device, and the cavity inside the traction tube (500) and the cavity inside the fixing tube (100) are both used to accommodate and constrain the guide wire (610). The traction tube (500) is slidably sleeved with the fixed tube (100); when the traction tube (500) slides relative to the fixed tube (100), the traction tube (500) can pull or push the guide wire (610).

2. The operating handle according to claim 1, characterized in that: The fixed tube (100) comprises an inner tube (200) and an outer tube (300); the outer tube (300) is fixedly sleeved on the outside of the inner tube (200); the distal end of the inner tube (200) is used to be connected to the guide wire sleeve (620); the cavity in the inner tube (200) is used to accommodate and constrain the guide wire (610); and the traction tube (500) is slidably sleeved on the outside of the inner tube (200) and is located inside the outer tube (300).

3. The operating handle according to claim 2, characterized in that: At least two first clamping arms (210) are provided at intervals at the distal end of the inner tube (200) along the circumference of the inner tube (200), and the at least two first clamping arms (210) surround and form a first space for accommodating the guide wire sleeve (620). The fixed tube (100) further comprises a first locking member (400), and the first locking member (400) is movable relative to the inner tube (200). When the first locking member (400) moves relative to the inner tube (200), the first locking member (400) presses each of the first clamping arms (210), and each of the first clamping arms (210) can jointly clamp and fix the guide wire sleeve (620).

4. The operating handle according to claim 3, characterized in that: The first locking member (400) is connected to the outer tube (300) and can move relative to the outer tube (300); the outer tube (300) is provided with a first locking protrusion (310); the first locking protrusion (310) is provided with a second locking protrusion (410); the first locking protrusion (310) and the second locking protrusion (410) are engaged with each other, so that the first locking member (400) and the outer tube (300) are engaged in a limit position in a direction extending from the proximal end to the distal end of the fixing tube (100); and / or The first locking member (400) is sleeved on the outside of the outer tube (300) and is threadedly connected to the outer tube (300); when the first locking member (400) presses each of the first clamping arms (210), the outer tube (300) and the inner tube (200) are fixedly connected via the friction force between the first locking member (400) and the first clamping arms (210).

5. The operating handle according to claim 2, characterized in that: The traction tube (500) is provided with a first limiting portion (510), and the fixed tube (100) is provided with a first matching portion (320). When the traction tube (500) pulls the guide wire (610) to a first extreme position, the first matching portion (320) stops and limits the first limiting portion (510) in a direction extending from the distal end to the proximal end of the fixed tube (100).

6. The operating handle according to claim 5, characterized in that: The first matching portion (320) protrudes from the inner circumference of the outer tube (300); an elastic arm (520) is provided at the distal end of the traction tube (500); and the first limiting portion (510) is protrudingly provided on one side of the elastic arm (520) facing the inner circumference of the outer tube (300). When the traction tube (500) pulls the guide wire (610) to the first extreme position, the inner tube (200) is arranged opposite to at least a portion of the elastic arm (520), and the inner tube (200) limits the elastic arm (520) from deforming.

7. The operating handle according to any one of claims 2 to 6, characterized in that: One of the traction tube (500) and the outer tube (300) is provided with a first clamping groove (501), and the other is provided with a third clamping protrusion (330); the one of the traction tube (500) and the outer tube (300) provided with the first clamping groove (501) is provided with at least two fourth clamping protrusions (530); the first clamping groove (501) is formed between two adjacent fourth clamping protrusions (530); When the traction tube (500) pulls the guide wire (610) to the first extreme position, the third locking protrusion (330) is engaged with the first locking groove (501).

8. The operating handle according to claim 1, characterized in that: The traction tube (500) is provided with a second limiting portion, and the fixed tube (100) is provided with a second matching portion, and when the traction tube (500) pushes the guide wire (610) to the second limit position, the second matching portion stops and limits the second limiting portion in a direction extending from the proximal end to the distal end of the fixed tube (100); and / or, One of the traction tube (500) and the fixed tube (100) is provided with a second clamping groove (502), and the other is provided with a fifth clamping protrusion (340); the one of the traction tube (500) and the fixed tube (100) provided with the second clamping groove (502) is provided with at least two sixth clamping protrusions (540); the second clamping groove (502) is formed between two adjacent sixth clamping protrusions (540); When the traction tube (500) pushes the guide wire (610) to the second extreme position, the fifth locking protrusion (340) is engaged with the second locking groove (502).

9. The operating handle according to claim 1, characterized in that: The traction tube (500) comprises a tube body (550) and a second locking member (560); the proximal end of the tube body (550) is provided with at least two second clamping arms (551) spaced apart along the circumference of the tube body (550); the at least two second clamping arms (551) surround and form a second space for accommodating the guide wire (610); the second locking member (560) is connected to the proximal end of the tube body (550) and is movable relative to the tube body (550); when the second locking member (560) moves relative to the tube body (550), the second locking member (560) presses each of the second clamping arms (551), and each of the second clamping arms (551) is capable of clamping and fixing the guide wire (610) together; and / or, The fixing tube (100) is provided with a first guide portion, and the traction tube (500) is provided with a second guide portion (570), at least one of the first guide portion and the second guide portion (570) extends along the axial direction of the fixing tube (100), and the first guide portion and the second guide portion (570) are slidably matched.

10. A body cavity blocking device, characterized in that: The invention comprises an operating handle as claimed in any one of claims 1 to 9.

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