Double-instrument switching assembly and medical instrument

Abstract

The utility model provides a double-instrument switching assembly and a medical instrument. The double-instrument switching assembly comprises a rotating piece and an instrument part. A spiral sliding groove is formed in the rotating piece. The instrument part comprises a first instrument and a second instrument, a first sliding part is arranged on the first instrument, and a second sliding part is arranged on the second instrument; the first sliding part and the second sliding part are limited to slide along the spiral sliding groove, so that when the rotating piece is rotated, one of the first instrument and the second instrument moves to the working position from the initial position, and the other one moves to the initial position from the working position. Therefore, by rotating the rotating piece, the first instrument and the second instrument can be conveniently switched according to different use conditions. In addition, the advancing or retreating distance of the instruments can be adjusted by adjusting the length of the spiral sliding groove, and the using flexibility and convenience of the double-instrument switching assembly are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a dual-device switching component and a medical device. Background Art

[0002] As for the medical devices involved in various endoscopic surgeries, different types of devices are often required to be used in combination. For example, in endoscopic submucosal dissection (ESD), high-frequency mucosal cutters and endoscopic injection needles are often required. High-frequency mucosal cutters are used for marking, incision, and dissection, while endoscopic injection needles are used for preoperative lifting of diseased mucosa and intraoperative fluid supplementation.

[0003] Currently, during surgery, it is generally necessary to repeatedly insert and withdraw the forceps channel to replace different types of surgical instruments. This operation of replacing surgical instruments often prolongs the operation time, reduces the operation efficiency and increases the risk of infection for patients. Therefore, there is an urgent need for a combination component that can simultaneously assemble at least two different instruments to reduce the number of insertions and withdrawals of the forceps channel. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to the utility model, a dual-instrument switching assembly is provided, which includes a rotating member and an instrument part. A spiral slide groove is provided on the rotating member. The instrument part includes a first instrument and a second instrument, the first instrument is provided with a first sliding part, and the second instrument is provided with a second sliding part; wherein the first sliding part and the second sliding part are defined as being slidable along the spiral slide groove, so that when the rotating member is rotated, one of the first instrument and the second instrument moves from an initial position to a working position, and the other moves from the working position to an initial position.

[0005] With such arrangement, by rotating the rotating member, the device to be used can be conveniently switched according to different usage conditions, that is, the first device and the second device can be conveniently switched. Moreover, the advancement or retreat distance of the device can be adjusted by adjusting the length of the spiral slide groove, so that the first device and the second device can be accurately switched between the initial position and the working position, effectively improving the flexibility and convenience of the dual-device switching assembly.

[0006] Exemplarily, the spiral groove includes a first spiral groove and a second spiral groove, a portion of the first sliding portion is arranged in the first spiral groove, a portion of the second sliding portion is arranged in the second spiral groove, and the rotation direction of the first spiral groove is opposite to the rotation direction of the second spiral groove.

[0007] Exemplarily, the pitch of the first spiral groove is different from the pitch of the second spiral groove.

[0008] Exemplarily, the first sliding portion includes a first rod portion and a first boss, the first boss is arranged on the first rod portion, and at least a portion of the first boss is arranged in the first spiral groove; and / or, the second sliding portion includes a second rod portion and a second boss, the second boss is arranged on the second rod portion, and at least a portion of the second boss is arranged in the second spiral groove.

[0009] Exemplarily, the rotating member is a shaft-shaped member, and the spiral groove is formed on the outer peripheral wall of the shaft-shaped member.

[0010] Exemplarily, a rotation force applying portion is provided at one end of the rotating member away from the instrument portion.

[0011] Exemplarily, a plurality of tooth-shaped grooves are provided on the outer periphery of the rotation force applying portion.

[0012] Exemplarily, the instrument part also has a guide member, and the first instrument and the second instrument are limited by the guide member to move from an initial position to a working position or from a working position to an initial position along a first direction, wherein the first direction is a direction parallel to the rotation axis of the rotating member.

[0013] Exemplarily, the guide member includes a first guide member and a second guide member, the first guide member has a first through hole, and the first sliding part is at least partially inserted into the first through hole; or / and, the second guide member has a second through hole, and the second sliding part is at least partially inserted into the second through hole.

[0014] According to another aspect of the utility model, a medical device is also provided, including an outer protective sheath and a dual-instrument switching assembly as described above, wherein when the first instrument and the second instrument are in their respective initial positions, they are located inside the outer protective sheath, and when the first instrument and the second instrument are in their respective working positions, they at least partially extend outside the outer protective sheath.

[0015] Exemplarily, the outer protective sheath is connected to a handle, which includes a shell, the shell is formed with a first accommodating cavity and a second accommodating cavity, the rotating member is arranged in the first accommodating cavity, and a part of the first sliding part and a part of the second sliding part are arranged in the second accommodating cavity.

[0016] Exemplarily, the shell has a partition wall between the first accommodating cavity and the second accommodating cavity, and a groove is arranged on the partition wall. The first accommodating cavity and the second accommodating cavity are connected through the groove, and two ends of the groove define two extreme positions. The first sliding part and the second sliding part are restricted to move between the two extreme positions.

[0017] Exemplarily, the housing includes a front shell and a rear shell, and the front shell is detachably connected to the rear shell.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other purposes, features and advantages of the present invention will become more apparent by describing the embodiments of the present invention in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0020] Figure 1 A schematic structural diagram of a dual-device switching assembly according to an exemplary embodiment of the utility model is shown;

[0021] Figure 2 A schematic structural diagram of a first sliding portion and a second sliding portion in a dual-device switching assembly according to an exemplary embodiment of the present utility model is shown;

[0022] Figure 3 A perspective view of a medical device according to an exemplary embodiment of the present invention is shown;

[0023] Figure 4 Shows Figure 3 An exploded view of a medical device according to an exemplary embodiment of the present invention is shown in FIG.

[0024] Among them, the components represented by the reference numerals in the figures are:

[0025] 10. Dual-apparatus switching assembly; 11. Rotating member; 111. Spiral chute; 1111. First spiral chute; 1112. Second spiral chute; 112. Rotation force application portion; 113. Toothed groove; 12. Apparatus portion; 121. First apparatus; 1211. First sliding portion; 1211A. First rod portion; 1211B. First convex column; 122. Second apparatus; 1212. Second sliding portion; 1212A. Second rod portion; 1212B. Second convex column; 1213. Tilt rod; 13. Guide member; 131. First guide member; 1311 , first through hole; 132, second guide member; 1321, second through hole; 20, outer protective sheath; 30, handle; 301, shell; 3011, first accommodating chamber; 3012, second accommodating chamber; 3012A, first extension cavity; 3012B, second extension cavity; 3012C, inclined cavity wall; 3013, partition wall; 3014, slot; 3014A, first slot; 3014B, second slot; 3014C, first end; 3014D, second end; 3015, front shell; 3016, rear shell; 3017, third through hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more obvious, the exemplary embodiments according to the utility model will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments of the utility model, and it should be understood that the utility model is not limited to the exemplary embodiments described here. Based on the embodiments of the utility model described in the utility model, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the utility model.

[0027] In the following description, a large number of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only illustrates preferred embodiments of the present invention, and the present invention can be implemented without one or more of such details. In addition, in order to avoid confusion with the present invention, some technical features known in the art are not described in detail.

[0028] In order to thoroughly understand the implementation of the utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the utility model is described in detail below, but in addition to these detailed descriptions, the utility model can also have other implementations.

[0029] In one embodiment of the present invention, a dual instrument switching assembly 10 is provided, and the dual instrument switching assembly 10 can be used in the medical field, the industrial automation field, or the laboratory research field, etc. The following will introduce a dual instrument switching assembly 10 according to an embodiment of the present invention in detail with reference to the accompanying drawings. Taking the dual instrument switching assembly 10 used in the medical field as an example, different types of surgical instruments can be used together during surgery.

[0030] See also Figure 1 The dual-instrument switching assembly 10 includes a rotating member 11 and an instrument portion 12. The rotating member 11 is provided with a spiral slide 111. The instrument portion 12 includes a first instrument 121 and a second instrument 122. The first instrument 121 is provided with a first sliding portion 1211, and the second instrument 122 is provided with a second sliding portion 1212. The first sliding portion 1211 and the second sliding portion 1212 are defined as being slidable along the spiral slide 111, so that when the rotating member 11 is rotated, one of the first instrument 121 and the second instrument 122 moves from the initial position to the working position, and the other moves from the working position to the initial position.

[0031] The first instrument 121 and the second instrument 122 can be represented as different types of operating tools, respectively. For example, in the field of mechanical manufacturing, the first instrument 121 can be represented as a straight-shaped tool, and the second instrument 122 can be represented as a cross-shaped tool. In the field of medical surgical instruments, for example, the first instrument 121 can be represented as an injection needle, and the second instrument 122 can be represented as a high-frequency electric knife. By setting the first instrument 121 and the second instrument 122 as different types of tools, respectively, it is possible to switch between the first instrument 121 and the second instrument 122 according to different usage scenarios to meet the needs of different usage scenarios, and the efficiency of switching tools can be effectively improved.

[0032] The first sliding portion 1211 and the second sliding portion 1212 are respectively at least partially embedded in the spiral groove 111 , so that when the rotating member 11 rotates, the first sliding portion 1211 and the second sliding portion 1212 can slide along the spiral groove 111 .

[0033] The working position is the position when the instrument part 12 is away from the rotating member 11, at which time the instrument part 12 is in a propelling state. The initial position is the position when the instrument part 12 is close to the rotating member 11, at which time the instrument part 12 is in a retreating state.

[0034] For example, Figure 1As shown, when the rotating member 11 is rotated clockwise, the first sliding portion 1211 drives the first device 121 to move away from the rotating member 11, and the second sliding portion 1212 drives the second device 122 to move back toward the rotating member 11, thereby, the first device 121 moves from the initial position to the working position, and the second device 122 moves from the working position to the initial position. Conversely, when the rotating member 11 is rotated counterclockwise, the first device 121 moves from the working position to the initial position, and the second device 122 moves from the initial position to the working position.

[0035] With such a configuration, by rotating the rotating member 11, the device to be used can be conveniently switched according to different usage conditions, that is, the first device 121 and the second device 122 can be conveniently switched. Moreover, the advancement or retreat distance of the device can be adjusted by adjusting the length of the spiral slide 111, so that the first device 121 and the second device 122 can be accurately switched between the initial position and the working position, which effectively improves the flexibility and convenience of the dual-device switching assembly 10.

[0036] In one embodiment of the present invention, refer to Figure 1 The spiral groove 111 includes a first spiral groove 1111 and a second spiral groove 1112. A portion of the first sliding portion 1211 is arranged in the first spiral groove 1111, and a portion of the second sliding portion 1212 is arranged in the second spiral groove 1112. The rotation direction of the first spiral groove 1111 is opposite to that of the second spiral groove 1112.

[0037] The first spiral groove 1111 and the second spiral groove 1112 are independently arranged to avoid contact and collision between the first sliding portion 1211 and the second sliding portion 1212 when the rotating member 11 is rotated, thereby ensuring the stability of the structure of the dual-device switching assembly 10.

[0038] Optionally, the first spiral chute 1111 and the second spiral chute 1112 can be arranged in communication. When the two are arranged in communication, the processing and manufacturing of the spiral chute 111 can be greatly facilitated.

[0039] With such arrangement, when the rotating member 11 is rotated, the first device 121 and the second device 122 can be switched between the initial position and the working position, which effectively improves the rationality of the layout and the compactness of the structure of the dual-device switching assembly 10.

[0040] In one embodiment of the present invention, refer to Figure 1 The pitch of the first spiral groove 1111 is the same as or different from the pitch of the second spiral groove 1112 .

[0041] When the pitch of the first spiral groove 1111 is the same as the pitch of the second spiral groove 1112, the first device 121 and the second device 122 have the same moving distance, and the user can quickly switch between the first device 121 and the second device 122, effectively saving the time required for adjustment.

[0042] The pitch of the first spiral groove 1111 may be different from the pitch of the second spiral groove 1112. A larger pitch may improve the rotation efficiency. When the rotating member 11 rotates by the same angle, the spiral advances a longer distance, thereby achieving a faster rotation speed.

[0043] Optionally, the lengths of the first spiral groove 1111 and the second spiral groove 1112 may be different.

[0044] Exemplarily, the pitch of the first spiral chute 1111 may be greater than the pitch of the second spiral chute 1112, the pitch of the first spiral chute 1111 may be arranged three times around the rotating member 11, and the pitch of the second spiral chute 1112 may be arranged one time around the rotating member 11, so that when the rotating member 11 rotates at the same angle, the first device 121 corresponding to the first spiral chute 1111 has a longer moving distance than the second device 122. When the length of the first device 121 is short, the first sliding portion 1211 on the first device 121 slides in the first spiral chute 1111, so that the first device 121 can accurately reach the working position.

[0045] With such a configuration, a dual-instrument switching assembly 10 with different pitches can be flexibly selected according to different usage scenarios, thereby ensuring that the first instrument 121 and the second instrument 122 can accurately reach the working position, effectively improving the practicality of the dual-instrument switching assembly 10.

[0046] In one embodiment of the present invention, refer to Figure 2 The first sliding portion 1211 includes a first rod portion 1211A and a first boss 1211B, the first boss 1211B is arranged on the first rod portion 1211A, and at least a portion of the first boss 1211B is arranged in the first spiral groove 1111; and / or, the second sliding portion 1212 includes a second rod portion 1212A and a second boss 1212B, the second boss 1212B is arranged on the second rod portion 1212A, and at least a portion of the second boss 1212B is arranged in the second spiral groove 1112.

[0047] like Figure 2The first boss 1211B is connected perpendicularly to the first rod portion 1211A, and the second boss 1212B is connected perpendicularly to the second rod portion 1212A, so that when the first sliding portion 1211 and the second sliding portion 1212 slide in the spiral groove 111, the first device 121 and the second device 122 can move along a predetermined trajectory of the axis.

[0048] The first protruding column 1211B and the first rod portion 1211A may be detachably connected or integrally connected. The second protruding column 1212B and the second rod portion 1212A may be detachably connected or integrally connected.

[0049] The portion of the first boss 1211B disposed on the first spiral groove 1111 and the portion of the second boss 1212B disposed on the second spiral groove 1112 may be cylindrical, and the cylindrical shape may reduce the contact area with the spiral groove 111 and reduce the friction force, thereby facilitating the smooth sliding of the first boss 1211B and the second boss 1212B.

[0050] Such a configuration can simplify the connection structure of the dual-device switching assembly 10 while ensuring the use effect of the dual-device switching assembly 10, thereby improving the reliability and stability of the dual-device switching assembly 10.

[0051] In one embodiment of the present invention, refer to Figure 1 The rotating member 11 is a shaft-shaped member, and the spiral groove 111 is formed on the outer peripheral wall of the shaft-shaped member.

[0052] The shape of the rotating member 11 can be cylindrical, elongated, etc. Preferably, it is cylindrical. In the embodiment of the present application, no limitation is made to the shape of the rotating member 11. All devices with a rotating function are within the protection scope of the present application.

[0053] The rotating member 11 can rotate freely around the central axis of the rotating member 11 under the operation of the user or the control of other equipment, so that the first sliding part 1211 and the second sliding part 1212 slide in the spiral groove 111 respectively, thereby driving the first device 121 and the second device 122 to switch between the working position and the initial position.

[0054] Such an arrangement can greatly facilitate the rotation of the rotating member 11 to ensure the rationality of the layout of the dual-device switching assembly 10 .

[0055] In one embodiment of the present invention, refer to Figure 1 A rotation force applying portion 112 is provided at one end of the rotating member 11 away from the instrument portion 12 .

[0056] With such arrangement, the user can conveniently and quickly complete the position switching between the first device 121 and the second device 122 by rotating the rotation force applying part 112, thereby further improving the user experience.

[0057] In one embodiment of the present invention, refer to Figure 1 A plurality of tooth-shaped grooves 113 are provided on the outer periphery of the rotation force applying portion 112 .

[0058] A plurality of tooth-shaped grooves 113 are evenly arranged on the outer periphery of the rotation force applying portion 112 , so as to transmit the torque to various parts of the rotating member 11 , thereby improving the transmission efficiency of the rotating member 11 .

[0059] In this way, the toothed groove 113 can increase the friction between the rotating member 11 and the user contact surface, thereby providing better rotational force. In addition, the toothed groove 113 can also be used to position the rotation of the rotating member 11 at a specific position to achieve precise control and positioning.

[0060] In one embodiment of the present invention, refer to Figure 1 The instrument part 12 also has a guide member 13, and the first instrument 121 and the second instrument 122 are defined by the guide member 13 along a first direction (such as Figure 1 The device can be moved from the initial position to the working position or from the working position to the initial position (in the X direction).

[0061] The first direction is a direction parallel to the rotation center of the rotating member 11. Figure 1 , the first direction may be the X direction in the figure.

[0062] The guide member 13 can make the first device 121 and the second device 122 move along a predetermined track. The guide member 13 can be rectangular, square or cylindrical, etc. In the embodiment of the present application, no limitation is made on the shape of the guide member 13. All devices with a guiding function are within the protection scope of the present application.

[0063] Such an arrangement allows the first device 121 and the second device 122 to move along a predetermined trajectory, effectively ensuring the accuracy of the movement of the dual-device switching assembly 10 and improving the user experience.

[0064] In one embodiment of the present invention, refer to Figure 1 The guide member 13 includes a first guide member 131 and a second guide member 132, the first guide member 131 has a first through hole 1311, and the first sliding portion 1211 is at least partially penetrated through the first through hole 1311; or / and, the second guide member 132 has a second through hole 1321, and the second sliding portion 1212 is at least partially penetrated through the second through hole 1321.

[0065] The first instrument 121 and / or the second instrument 122 are inserted into the guide member 13, and the guide member 13 can limit the movement trajectory of the first instrument 121 and / or the second instrument 122 during movement, thereby ensuring that the first instrument 121 and / or the second instrument 122 can move in a straight line direction.

[0066] With such arrangement, the first sliding portion 1211 and / or the second sliding portion 1212 can be flexibly arranged in the corresponding guide member 13, further improving the user experience.

[0067] In one embodiment of the present invention, a medical device is provided. Figure 3 and Figure 4 The medical device includes an outer protective sheath 20 and a dual-instrument switching assembly 10 as described above. When the first instrument 121 and the second instrument 122 are in their respective initial positions, they are located in the outer protective sheath 20. When the first instrument 121 and the second instrument 122 are in their respective working positions, they at least partially extend out of the outer protective sheath 20.

[0068] The outer protective sheath 20 is a tubular structure sleeved on the first device 121 and the second device 122. The tubular shape of the outer protective sheath 20 can be cylindrical, elongated, or the like.

[0069] The outer protective sheath 20 can protect the instrument part 12 from being polluted and damaged by the external environment, and can isolate the contact between the instrument part 12 and the external tissue or environment to prevent cross infection and contamination.

[0070] The outer protective sheath 20 can provide a safety protection layer to reduce the potential risk of injury to the user during surgical operations, prevent the instrument part 12 from accidentally sliding or puncturing, and thus reduce accidental injuries during the operation.

[0071] With such arrangement, the outer protective sheath 20 can effectively protect the instrument part 12 in the medical instrument, isolate the pollution from the external environment, accurately guide the instrument part 12, and help improve the safety and effect of the surgical operation.

[0072] In one embodiment of the present invention, refer to Figure 4 The outer protective sheath 20 is connected to a handle 30, and the handle 30 includes a shell 301, and the shell 301 is formed with a first accommodating cavity 3011 and a second accommodating cavity 3012. The rotating member 11 is arranged in the first accommodating cavity 3011, and a part of the first sliding part 1211 and a part of the second sliding part 1212 are arranged in the second accommodating cavity 3012.

[0073] The second accommodating cavity 3012 is located below the first accommodating cavity 3011, that is, between the end away from the rotating member 11 and the outer protective sheath 20. The rotating member 11 and the instrument part 12 are respectively arranged in different accommodating cavities, which can effectively isolate the rotating member 11 and the instrument part 12 to avoid mutual interference between the two during movement.

[0074] A third through hole 3017 corresponding to the rotation force applying portion 112 is provided at the distal end of the handle 30 away from the instrument portion 12 , and a user can conveniently rotate the rotation force applying portion 112 through the third through hole 3017 .

[0075] Such an arrangement can avoid the mutual influence of the various parts in the dual-device switching assembly 10 when in motion, and effectively improve the stability and reliability of the medical device.

[0076] In one embodiment of the present invention, refer to Figure 4 The shell 301 has a partition wall 3013 between the first accommodating cavity 3011 and the second accommodating cavity 3012, and a groove 3014 is provided on the partition wall 3013. The first accommodating cavity 3011 and the second accommodating cavity 3012 are connected through the groove 3014, and two ends of the groove 3014 define two extreme positions. The first sliding part 1211 and the second sliding part 1212 are restricted to be movable between the two extreme positions.

[0077] In the case where the instrument portion 12 includes the first instrument 121 and the second instrument 122, the slot 3014 may include a first slot 3014A and a second slot 3014B. The first slot 3014A and the second slot 3014B are located on opposite sides of the first accommodating cavity 3011. The first slot 3014A is used to limit the movement range of the first instrument 121, such as Figure 4 As shown, the first end 3014C of the first slot 3014A defines one limit position of the first device 121, and the second end 3014D of the first slot 3014A defines another limit position of the first device 121, and the first sliding portion 1211 is restricted to be movable between the two limit positions. The second slot 3014B is used to limit the movement range of the second device 122, and its structure is the same as that of the first slot 3014A, so it will not be described in detail here.

[0078] The first accommodating cavity 3011 is connected to the second accommodating cavity 3012 through the first slot 3014A and the second slot 3014B. A portion of the first convex column 1211B of the first sliding portion 1211 is disposed in the first slot 3014A, and a portion of the second convex column 1212B of the second sliding portion 1212 is disposed in the second slot 3014B. The length of the first slot 3014A is greater than the width of the first convex column 1211B, and the length of the second slot 3014B is greater than the width of the second convex column 1212B, so that the first convex column 1211B and the second convex column 1212B have the space required for movement.

[0079] Combined with reference Figure 2 and Figure 4 In the case where the instrument portion 12 includes the first instrument 121 and the second instrument 122, the second accommodating cavity 3012 has a first extension cavity portion 3012A and a second extension cavity portion 3012B, and the first extension cavity portion 3012A, the first accommodating cavity 3011 and the second extension cavity portion 3012B are spaced apart in a direction perpendicular to the first direction X. A portion of the first rod portion 1211A of the first sliding portion 1211 is disposed in the first extension cavity portion 3012A, and a portion of the second rod portion 1212A of the second sliding portion 1212 is disposed in the second extension cavity portion 3012B. In this case, the first extension cavity portion 3012A is equivalent to the aforementioned first through hole 1311, and the second extension cavity portion 3012B is equivalent to the aforementioned second through hole 1321.

[0080] Such an arrangement can ensure that while the instrument part 12 is securely arranged in the medical instrument, there is still a certain movement space so that the first instrument 121 and the second instrument 122 can accurately reach the working position, effectively improving the firmness and use effect of the medical instrument.

[0081] Combined with reference Figure 2 and Figure 4 A gradually converging inclined cavity wall 3012C is formed on the side of the second accommodating cavity 3012 away from the first accommodating cavity 3011, and the first sliding part 1211 and the second sliding part 1212 are both provided with an inclined rod 1213 on the side away from the first accommodating cavity 3011. The inclined rod 1213 is arranged corresponding to the inclined cavity wall 3012C. The end of the inclined rod 1213 of the first sliding part 1211 and the second sliding part 1212 away from the rotating part 11 is used to install the outer protective sheath 20. Such an arrangement can make the structural design of the medical device reasonable and the space design compact.

[0082] In one embodiment of the present invention, refer to Figure 3 and Figure 4 The housing 301 includes a front housing 3015 and a rear housing 3016, and the front housing 3015 and the rear housing 3016 are detachably connected.

[0083] With such an arrangement, when a part of the medical device needs to be repaired or replaced, the connecting parts can be easily and quickly disassembled, which effectively saves the user's time and energy and improves practicality and convenience.

[0084] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present invention thereto. A person of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as required by the appended claims.

[0085] For ease of description, the term "connection" may be used here to describe the relationship between one or more elements or features shown in the figures and other elements or features. It should be understood that "connection" may include direct connection or indirect connection via other elements or features, and this article is intended to include all of these situations.

[0086] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0087] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0088] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dual-device switching assembly, characterized in that: include: A rotating member, wherein the rotating member is provided with a spiral groove; and An instrument part, the instrument part comprising a first instrument and a second instrument, the first instrument being provided with a first sliding part, and the second instrument being provided with a second sliding part; Wherein, the first sliding part and the second sliding part are defined to be slidable along the spiral slide groove, so that when the rotating member is rotated, one of the first device and the second device moves from the initial position to the working position, and the other moves from the working position to the initial position.

2. The dual-device switching assembly according to claim 1, characterized in that: The spiral chute includes a first spiral chute and a second spiral chute, a portion of the first sliding portion is arranged in the first spiral chute, a portion of the second sliding portion is arranged in the second spiral chute, and a rotation direction of the first spiral chute is opposite to a rotation direction of the second spiral chute.

3. The dual-device switching assembly according to claim 2, characterized in that: The pitch of the first spiral chute is different from the pitch of the second spiral chute.

4. The dual-device switching assembly according to claim 2, characterized in that: The first sliding portion includes a first rod portion and a first protrusion, the first protrusion is arranged on the first rod portion, and at least a part of the first protrusion is arranged in the first spiral slide groove; and / or, The second sliding portion includes a second rod portion and a second protrusion, the second protrusion is arranged on the second rod portion, and at least a portion of the second protrusion is arranged in the second spiral sliding groove.

5. The dual-device switching assembly according to claim 1, characterized in that: The rotating member is a shaft-shaped member, and the spiral groove is formed on the outer peripheral wall of the shaft-shaped member.

6. The dual-device switching assembly according to claim 5, characterized in that: A rotation force applying portion is arranged at one end of the rotating member away from the instrument portion.

7. The dual-device switching assembly according to claim 6, characterized in that: A plurality of tooth-shaped grooves are arranged on the outer periphery of the rotation force applying portion.

8. The dual-device switching assembly according to claim 1, characterized in that: The instrument part also has a guide member, and the first instrument and the second instrument are limited by the guide member to move from the initial position to the working position or from the working position to the initial position along a first direction, wherein the first direction is a direction parallel to the rotation axis of the rotating member.

9. The dual-device switching assembly according to claim 8, characterized in that: The guide member includes a first guide member and a second guide member, the first guide member has a first through hole, and the first sliding part is at least partially penetrated through the first through hole; or / and, the second guide member has a second through hole, and the second sliding part is at least partially penetrated through the second through hole.

10. A medical device, characterized in that: It comprises an outer protective sheath and a dual instrument switching assembly as described in any one of claims 1 to 9, wherein the first instrument and the second instrument are located inside the outer protective sheath when they are in their respective initial positions, and at least partially extend outside the outer protective sheath when the first instrument and the second instrument are in their respective working positions.

11. The medical device according to claim 10, characterized in that: The outer protective sheath is connected to a handle, which includes a shell. The shell is formed with a first accommodating cavity and a second accommodating cavity. The rotating member is arranged in the first accommodating cavity, and a part of the first sliding part and a part of the second sliding part are arranged in the second accommodating cavity.

12. The medical device according to claim 11, characterized in that: The shell has a partition wall between the first accommodating cavity and the second accommodating cavity, and a groove is arranged on the partition wall. The first accommodating cavity and the second accommodating cavity are connected through the groove, and two ends of the groove define two extreme positions. The first sliding part and the second sliding part are restricted to be movable between the two extreme positions.

13. The medical device according to claim 11, characterized in that: The housing comprises a front housing and a rear housing, and the front housing is detachably connected to the rear housing.

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