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 handle part, a rotating sleeve, a first sliding part and a second sliding part, wherein the first sliding part and the second sliding part are arranged in the mounting cavity. The handle part is sleeved with the rotary sleeve, a mounting cavity is formed in the rotary sleeve, and a sliding groove is formed in the rotary sleeve. The first sliding part is used for being connected with a first instrument, and the second sliding part is used for being connected with a second instrument. The first sliding part and the second sliding part are limited to be capable of sliding along the sliding groove, so that when the rotating sleeve rotates relative to the handle part, 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. Thus, the first instrument and the second instrument can be conveniently switched according to different use conditions, the use flexibility, convenience and practicability of the double-instrument switching assembly are effectively improved, the radial size of the double-instrument switching assembly is reduced, and the assembly difficulty and the manufacturing cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a dual-device switching component and a medical device. Background Technology

[0002] In terms of medical devices involved in various endoscopic surgeries, different types of instruments often need to be used in combination. For example, in endoscopic submucosal dissection (ESD), a high-frequency mucosal incision knife and an endoscopic injection needle are often required. The high-frequency mucosal incision knife is used for marking, incision, and dissection, while the endoscopic injection needle is used for lifting the diseased mucosa before surgery and for supplementing fluid during surgery.

[0003] Currently, during surgery, it is generally necessary to repeatedly insert and withdraw forceps to change different types of surgical instruments. This operation of changing surgical instruments often prolongs the operation time, reduces the efficiency of the operation, and increases the risk of infection for patients. Therefore, there is an urgent need for a combination component that can be equipped with at least two different instruments at the same time to reduce the number of times forceps need to be inserted and withdrawn. Utility Model Content

[0004] To at least partially address the problems existing in the prior art, this invention provides a dual-instrument switching assembly. The dual-instrument switching assembly includes a handle portion, a rotating sleeve, and a first sliding portion and a second sliding portion disposed within a mounting cavity. The rotating sleeve is sleeved over the handle portion and has a mounting cavity inside, with a sliding groove on the rotating sleeve. The first sliding portion is used to connect with a first instrument, and the second sliding portion is used to connect with a second instrument. The first and second sliding portions are defined to be slidable along the sliding groove, so that when the rotating sleeve rotates relative to the handle portion, one of the first and second instruments moves from an initial position to a working position, and the other moves from the working position to the initial position.

[0005] This invention relates to a dual-instrument switching assembly. Through the relative rotation between the handle and the rotating sleeve, the first and second sliding parts can slide along sliding grooves respectively. This allows for convenient switching between the desired instruments, i.e., convenient switching between the first and second instruments, depending on the usage situation. Furthermore, the length of the sliding grooves can be adjusted to regulate the advance or retraction distance of the first and second instruments, enabling accurate switching between their initial and working positions. This effectively improves the flexibility, convenience, and practicality of the dual-instrument switching assembly. Moreover, when the rotating sleeve is fitted onto the outside of the handle, the first and second sliding parts can be embedded in and slide along the sliding grooves. This ensures convenient switching between the first and second instruments while optimizing the connection structure of the dual-instrument switching assembly, reducing its radial dimensions, and lowering assembly difficulty and manufacturing costs.

[0006] For example, the sliding groove includes a first spiral groove and a second spiral groove, a portion of the first sliding part is disposed in the first spiral groove, a portion of the second sliding part is disposed in the second spiral groove, and the rotation direction of the first spiral groove is opposite to that of the second spiral groove.

[0007] For example, the first sliding portion includes a first rod portion and a first protrusion, the first protrusion being disposed at the end of the first rod portion away from the first instrument, and at least a portion of the first protrusion being disposed within a first helical groove; and / or, the second sliding portion includes a second rod portion and a second protrusion, the second protrusion being disposed at the end of the second rod portion away from the second instrument, and at least a portion of the second protrusion being disposed within a second helical groove.

[0008] For example, the rotating sleeve includes a first sleeve and a second sleeve sequentially sleeved outside the handle portion. The first sleeve has a first groove formed on its wall, and the second sleeve has a second groove formed on its wall. The rotation direction of the first groove is opposite to that of the second groove. The outer wall of the handle portion is provided with a connecting portion, which is slidably disposed in the first groove and the second groove.

[0009] For example, the sliding groove further includes a first linear sliding groove and a second linear sliding groove. The first end of the first sleeve is formed with the first linear sliding groove, and the second end of the second sleeve is formed with the second linear sliding groove. A portion of the first sliding part is disposed in the first linear sliding groove, and a portion of the second sliding part is disposed in the second linear sliding groove.

[0010] For example, the first sliding portion includes a first rod portion and a first protrusion, the first protrusion being disposed at the end of the first rod portion near the first instrument, and at least a portion of the first protrusion being disposed in the first linear groove; and / or, the second sliding portion includes a second rod portion and a second protrusion, the second protrusion being disposed at the end of the second rod portion away from the second instrument, and at least a portion of the second protrusion being disposed in the second linear groove.

[0011] For example, the outer wall of the first sleeve is formed with a guide portion, and the inner wall of the second sleeve is formed with a guide groove that matches the guide portion.

[0012] For example, there are multiple guides, which are spaced apart circumferentially along the outer wall of the first sleeve.

[0013] For example, a rotating force-applying part is formed around the outer wall of the rotating sleeve, and a rotating mating part is provided at the end of the handle portion away from the first instrument.

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

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0016] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 A schematic diagram of the structure of a dual-instrument switching assembly according to an exemplary embodiment of the present invention is shown;

[0018] Figure 2 A schematic diagram of the structure of a first instrument and a second instrument according to an exemplary embodiment of the present invention is shown;

[0019] Figure 3A schematic diagram showing a first instrument in a working position according to an exemplary embodiment of the present invention is illustrated;

[0020] Figure 4 A schematic diagram showing the second device in a working position according to an exemplary embodiment of the present invention is illustrated;

[0021] Figure 5 A schematic diagram of the structure of a first sleeve according to an exemplary embodiment of the present invention is shown;

[0022] Figure 6 A schematic diagram of the structure of the second sleeve according to an exemplary embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram of the structure of a first instrument and a second instrument according to another exemplary embodiment of the present invention is shown;

[0024] Figure 8 A schematic diagram of the handle portion according to an exemplary embodiment of the present invention is shown;

[0025] Figure 9 A schematic diagram of the structure of a dual-instrument switching assembly according to another exemplary embodiment of the present invention is shown;

[0026] Figure 10 A schematic diagram of the structure of a medical device according to an exemplary embodiment of the present invention is shown.

[0027] The components indicated by the reference numerals in the figures are as follows:

[0028] 1. Handle part; 11. Mounting cavity; 12. Rotating mating part; 13. Connecting part; 2. Rotating sleeve; 21. Sliding groove; 211. First spiral groove; 212. Second spiral groove; 213. First linear groove; 214. Second linear groove; 22. First sleeve; 221. First groove body; 222. Guide part; 23. Second sleeve; 231. Second groove body; 232. Guide groove; 24. Rotating force application part; 31. First instrument; 311. First sliding part; 3111. First rod part; 3112. First protrusion; 32. Second instrument; 321. Second sliding part; 3211. Second rod part; 3212. Second protrusion; 4. Outer protective sheath. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0030] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0031] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0032] One embodiment of this utility model provides a dual-instrument switching assembly, which can be used in the medical field, industrial automation field, or laboratory research field, etc. The following will describe in detail a dual-instrument switching assembly according to an embodiment of this utility model with reference to the accompanying drawings. Taking the dual-instrument switching assembly used in the medical field as an example, different types of surgical instruments can be used together during surgery.

[0033] See also Figure 1 , Figure 2 and Figure 3The dual-instrument switching assembly includes a handle portion 1, a rotating sleeve 2, and a first sliding portion 311 and a second sliding portion 321 disposed within a mounting cavity. The rotating sleeve 2 is sleeved outside the handle portion 1 and has a mounting cavity 11 inside. A sliding groove 21 is provided on the rotating sleeve 2. The first sliding portion 311 is used to connect with the first instrument 31, and the second sliding portion 321 is used to connect with the second instrument 32. The first sliding portion 311 and the second sliding portion 321 are defined to be slidable along the sliding groove 21, so that when the rotating sleeve 2 rotates relative to the handle portion 1, one of the first instrument 31 and the second instrument 32 moves from an initial position to a working position, and the other moves from the working position to the initial position. When the first instrument 31 is in its initial position, it may be entirely located inside the mounting cavity 11. When the first instrument 31 is in its working position, it may be partially located inside the mounting cavity 11 and partially protruding outside the mounting cavity 11. Similarly, when the second instrument 32 is in its initial position, it may be entirely located inside the mounting cavity 11. When the second instrument 32 is in its working position, it may be partially located inside the mounting cavity 11 and partially protruding outside the mounting cavity 11.

[0034] The first instrument 31 and the second instrument 32 can be represented as different types of operating tools. For example, in the field of mechanical manufacturing, the first instrument 31 can be represented as a straight tool, and the second instrument 32 can be represented as a cross-shaped tool. In the field of medical surgical instruments, the first instrument 31 can be represented as an injection needle, and the second instrument 32 can be represented as a high-frequency electrosurgical unit. By setting the first instrument 31 and the second instrument 32 as different types of tools, the first instrument 31 and the second instrument 32 can be switched according to different usage scenarios to meet the needs of different usage scenarios, effectively improving the efficiency of tool switching.

[0035] The first sliding part 311 and the second sliding part 321 are respectively at least partially embedded in the sliding groove 21 so that when the rotating sleeve 2 rotates relative to the handle part 1, the first sliding part 311 and the second sliding part 321 can slide along the sliding groove 21.

[0036] The working position is indicated by the position of the first instrument 31 or the second instrument 32 when it is far away from the handle portion 1, at which time the first instrument 31 or the second instrument 32 is in the advancing state. The initial position is indicated by the position of the first instrument 31 or the second instrument 32 when it is close to the handle portion 1, at which time the first instrument 31 or the second instrument 32 is in the retracting state.

[0037] For example, such as Figure 3As shown, when the rotating sleeve 2 is rotated clockwise, the first sliding part 311 drives the first instrument 31 to move away from the handle part 1, and the second sliding part 321 drives the second instrument 32 to retract towards the handle part 1. Thus, the first instrument 31 moves from the initial position to the working position, and the second instrument 32 moves from the working position to the initial position. Conversely, as... Figure 4 As shown, when the rotating sleeve 2 is rotated counterclockwise, the first instrument 31 moves from the working position to the initial position, and the second instrument 32 moves from the initial position to the working position.

[0038] This invention relates to a dual-instrument switching assembly. Through the relative rotation between the handle portion 1 and the rotating sleeve 2, the first sliding part 311 and the second sliding part 321 can slide along the sliding groove 21 respectively. This allows for convenient switching of the desired instruments according to different usage conditions, i.e., convenient switching between the first instrument 31 and the second instrument 32. Furthermore, by adjusting the length of the sliding groove 21, the advancing or retracting distance of the first instrument 31 and the second instrument 32 can be adjusted, enabling accurate switching between the initial and working positions. This effectively improves the flexibility, convenience, and practicality of the dual-instrument switching assembly. Moreover, when the rotating sleeve 2 is fitted onto the outside of the handle portion 1, the first sliding part 311 and the second sliding part 321 can be embedded in and slide along the sliding groove 21. This ensures convenient switching between the first instrument 31 and the second instrument 32 while optimizing the connection structure of the dual-instrument switching assembly, reducing its radial dimensions, and lowering the assembly difficulty and manufacturing cost.

[0039] In some embodiments, in conjunction with reference Figure 3 and Figure 4 The sliding groove 21 includes a first spiral groove 211 and a second spiral groove 212. A portion of the first sliding part 311 is disposed in the first spiral groove 211, and a portion of the second sliding part 321 is disposed in the second spiral groove 212. The rotation direction of the first spiral groove 211 is opposite to that of the second spiral groove 212.

[0040] The first spiral groove 211 and the second spiral groove 212 are set independently so that when the rotating sleeve 2 is rotated, the first sliding part 311 and the second sliding part 321 can be prevented from contacting and colliding, thus ensuring the stability of the dual instrument switching assembly structure.

[0041] Optionally, the first helical groove 211 and the second helical groove 212 can be connected. When the two are connected, the processing and manufacturing of the helical groove can be greatly facilitated.

[0042] With this configuration, rotating the aforementioned rotating sleeve 2 allows for the switching between the first instrument 31 and the second instrument 32 in their initial and working positions, effectively improving the rationality of the dual instrument switching assembly layout and the compactness of its structure.

[0043] In some embodiments, see Figure 2 The first sliding portion 311 includes a first rod portion 3111 and a first protrusion 3112. The first protrusion 3112 is disposed at the end of the first rod portion 3111 away from the first instrument 31, and at least a portion of the first protrusion 3112 is disposed within the first spiral groove 211; and / or, the second sliding portion 321 includes a second rod portion 3211 and a second protrusion 3212. The second protrusion 3212 is disposed at the end of the second rod portion 3211 away from the second instrument 32, and at least a portion of the second protrusion 3212 is disposed within the second spiral groove 212.

[0044] like Figure 2 As shown, the first protrusion 3112 is perpendicularly connected to the first rod portion 3111, and the second protrusion 3212 is perpendicularly connected to the second rod portion 3211, so that when the first sliding portion 311 and the second sliding portion 321 slide in the sliding groove 21, the first instrument 31 and the second instrument 32 can move along a predetermined trajectory of the axis.

[0045] The first protrusion 3112 and the first rod 3111 can be detachably connected or integrally formed. The second protrusion 3212 and the second rod 3211 can be detachably connected or integrally formed.

[0046] The portion of the first protrusion 3112 located in the first spiral groove 211 and the portion of the second protrusion 3212 located in the second spiral groove 212 can be cylindrical. The cylindrical shape can reduce the contact area with the sliding groove 21 and reduce the friction, which is beneficial to the smooth sliding of the first protrusion 3112 and the second protrusion 3212.

[0047] This configuration simplifies the connection structure of the dual-instrument switching component while ensuring its effectiveness, thus improving its reliability and stability.

[0048] In some embodiments, in conjunction with reference Figure 5 , Figure 6 , Figure 8 and Figure 10 The rotating sleeve 2 includes a first sleeve 22 and a second sleeve 23 sequentially sleeved outside the handle portion 1. The wall of the first sleeve 22 forms a first groove 221, and the wall of the second sleeve 23 forms a second groove 231. The rotation direction of the first groove 221 is opposite to that of the second groove 231. The outer wall of the handle portion 1 is provided with a connecting part 13, which is slidably disposed in the first groove 221 and the second groove 231.

[0049] The first sleeve 22 can be fitted onto the outside of the handle portion 1, while the second sleeve 23 can be fitted onto the outside of the first sleeve 22.

[0050] The connecting part 13 can be cylindrical. The cylindrical connecting part 13 can reduce the contact area with the sliding groove 21 and reduce the friction, which is conducive to the smooth sliding of the connecting part 13 in the first groove 221 and the second groove 231.

[0051] The first groove 221 and the second groove 231 can be spiral grooves with opposite rotation directions. The connecting part 13 of the handle part 1 is disposed in the first groove 221 and the second groove 231. In this way, when the user rotates the rotating sleeve 2, the first sleeve 22 and the second sleeve 23 can move in opposite directions to realize the position switching between the first instrument 31 and the second instrument 32.

[0052] With this configuration, the sliding of the connecting part 13 within the first groove 221 and the second groove 231 allows the handle part 1 and the rotating sleeve 2 to rotate flexibly, thereby enabling the switching between the first instrument 31 and the second instrument 32, effectively improving the practicality of the dual instrument switching assembly.

[0053] In some embodiments, in conjunction with reference Figure 5 , Figure 6 and Figure 10 The sliding groove 21 also includes a first linear sliding groove 213 and a second linear sliding groove 214. The first end of the first sleeve 22 is formed with the first linear sliding groove 213, and the second end of the second sleeve 23 is formed with the second linear sliding groove 214. A portion of the first sliding part 311 is disposed in the first linear sliding groove 213, and a portion of the second sliding part 321 is disposed in the second linear sliding groove 214.

[0054] The first sleeve 22 has a first linear groove 213 at the end closest to the first instrument 31, and the second sleeve 23 has a second linear groove 214 at the end furthest from the second instrument 32.

[0055] The first linear groove 213 and the second linear groove 214 can each be elongated, and the first linear groove 213 and the second linear groove 214 can be arranged along the rotation axis perpendicular to the first sleeve 22 and the second sleeve 23, respectively.

[0056] When the user rotates the first sleeve 22 and the second sleeve 23, the first linear groove 213 and the second linear groove 214 allow the first sliding part 311 and the second sliding part 321 to have rotational space, respectively. Furthermore, the sidewalls of the first linear groove 213 and the second linear groove 214 along their length can push the first sliding part 311 and the second sliding part 321 respectively when the rotating sleeve 2 is rotated, thereby achieving position switching between the first instrument 31 and the second instrument 32.

[0057] With this configuration, the first linear slide 213 and the second linear slide 214 can ensure that the first sliding part 311 and the second sliding part 321 have rotation space, while also pushing the first sliding part 311 and the second sliding part 321 to advance or retract the first instrument 31 and the second instrument 32, effectively ensuring the reliability and convenience of the dual instrument switching assembly.

[0058] In some embodiments, in conjunction with reference Figure 7 and Figure 9 The first sliding portion 311 includes a first rod portion 3111 and a first protrusion 3112. The first protrusion 3112 is disposed at one end of the first rod portion 3111 near the first instrument 31, and at least a portion of the first protrusion 3112 is disposed in the first linear groove 213; and / or, the second sliding portion 321 includes a second rod portion 3211 and a second protrusion 3212. The second protrusion 3212 is disposed at one end of the second rod portion 3211 away from the second instrument 32, and at least a portion of the second protrusion 3212 is disposed in the second linear groove 214.

[0059] Those skilled in the art can understand the specific structure and beneficial effects of the first sliding part 311 and the second sliding part 321 by reading the above description. For the sake of brevity, further details are omitted here.

[0060] In some embodiments, in conjunction with reference Figure 5 and Figure 6 The outer wall of the first sleeve 22 has a guide portion 222, and the inner wall of the second sleeve 23 has a guide groove 232 that matches the guide portion 222.

[0061] There can be multiple guide parts 222, and the multiple guide parts 222 can be respectively disposed on opposite sides of the first sleeve 22, thereby effectively improving the connection strength and reliability of the first sleeve 22 and the second sleeve 23.

[0062] The guide portion 222 can be elongated, and its length direction is parallel to the axial direction of the dual-instrument switching assembly. The guide groove 232 can be a recess that fits into the guide portion 222.

[0063] With this configuration, the guide portion 222 can be slidably disposed within the guide groove 232, so that when the first sleeve 22 and the second sleeve 23 rotate relative to each other, the second sleeve 23 can stably slide along the outer wall of the first sleeve 22, further improving the stability of the rotating sleeve 2 during movement and the robustness of the dual instrument switching assembly.

[0064] In some embodiments, see Figure 5 There are multiple guide sections 222, which are spaced apart circumferentially along the outer wall of the first sleeve 22.

[0065] This configuration, with multiple guide sections 222 spaced apart in the circumferential direction, not only makes the connection between the first sleeve 22 and the second sleeve 23 more secure, effectively increasing the stability and robustness of the overall structure of the dual-instrument switching assembly, but also prevents misalignment during relative movement between the first sleeve 22 and the second sleeve 23, thereby achieving more precise guidance and further improving the reliability and safety of the dual-instrument switching assembly.

[0066] In some embodiments, in conjunction with reference Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figures 8 to 10 The outer wall of the rotating sleeve 2 is surrounded by a rotating force-applying part 24, and the handle part 1 is provided with a rotating mating part 12 at the end away from the first instrument 31.

[0067] The rotating force-applying part 24 can be composed of multiple evenly arranged toothed grooves to transmit torque to various parts of the rotating sleeve 2, thereby improving the transmission efficiency of the rotating sleeve 2. The toothed grooves can increase the friction between the rotating sleeve 2 and the user contact surface, thus providing better rotational force. Furthermore, the toothed grooves can also be used to position the rotation of the rotating sleeve 2 at specific locations to achieve precise control and positioning.

[0068] The rotating fitting part 12 can be ring-shaped, which makes it easier for users to pick up and hang it.

[0069] With this configuration, the rotating force application part 24 formed around the outer wall of the rotating sleeve 2 allows the user to apply rotational force at any angle. Through cooperation with the rotating mating part 12, the position switching between the first instrument 31 and the second instrument 32 can be completed conveniently and quickly. This effectively improves the rotational efficiency and practicality of the dual instrument switching assembly, and further enhances the user experience.

[0070] According to another aspect of this utility model, see [reference needed]. Figure 10The invention also provides a medical device including an outer protective sheath 4, a first instrument 31, a second instrument 32, and a dual instrument switching assembly as described above. When the first instrument 31 and the second instrument 32 are in their respective initial positions, they are located inside the outer protective sheath 4. When the first instrument 31 and the second instrument 32 are in their respective working positions, they at least partially extend outside the outer protective sheath 4.

[0071] The outer protective sheath 4 is a tubular structure fitted onto the first instrument 31 and the second instrument 32. The tubular shape of the outer protective sheath 4 can be cylindrical, elongated, etc.

[0072] The outer protective sheath 4 can protect the first instrument 31 and the second instrument 32 from pollution and damage from the external environment, and can isolate the first instrument 31 or the second instrument 32 from contact with external tissues or the environment to prevent cross-infection and contamination.

[0073] The outer protective sheath 4 can provide a safety protection layer, reduce the potential risk of injury to the user during surgical procedures, and prevent the first instrument 31 or the second instrument 32 from accidentally slipping or puncturing, thereby reducing accidental injury during the surgical process.

[0074] With this design, the outer protective sheath 4 can effectively protect the first instrument 31 or the second instrument 32 in the medical device, isolate it from external environmental pollution, and accurately guide the first instrument 31 or the second instrument 32, which helps to improve the safety and effectiveness of the surgical procedure.

[0075] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0076] For ease of description, the term "connection" may be used herein to describe the relationship between one or more elements or features shown in the figure and other elements or features. It should be understood that "connection" may include direct connections or indirect connections via other elements or features, and this document is intended to encompass all such cases.

[0077] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0078] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0079] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-instrument switching assembly, characterized in that, include: Handle part; A rotating sleeve is fitted over the handle portion and has an installation cavity inside it. The rotating sleeve is provided with a sliding groove. as well as, A first sliding part and a second sliding part are disposed within the mounting cavity, the first sliding part being used to connect with a first instrument, and the second sliding part being used to connect with a second instrument; The first sliding portion and the second sliding portion are defined to be slidable along the sliding groove so that when the rotating sleeve rotates relative to the handle portion, one of the first instrument and the second instrument moves from the initial position to the working position, and the other moves from the working position to the initial position.

2. The dual instrument switch assembly of claim 1, wherein, The sliding groove includes a first spiral groove and a second spiral groove. A portion of the first sliding part is disposed in the first spiral groove, and a portion of the second sliding part is disposed in the second spiral groove. The rotation direction of the first spiral groove is opposite to that of the second spiral groove.

3. The dual instrument switch assembly of claim 2, wherein, The first sliding portion includes a first rod portion and a first protrusion, the first protrusion being disposed at the end of the first rod portion away from the first instrument, and at least a portion of the first protrusion being disposed within the first helical groove; and / or, The second sliding part includes a second rod and a second protrusion. The second protrusion is disposed at the end of the second rod away from the second instrument, and at least part of the second protrusion is disposed within the second spiral groove.

4. The dual instrument switch assembly of claim 1, wherein, The rotating sleeve includes a first sleeve and a second sleeve sequentially sleeved outside the handle portion. The first sleeve has a first groove formed in its tube wall, and the second sleeve has a second groove formed in its tube wall. The rotation direction of the first groove is opposite to that of the second groove. The outer wall of the handle portion is provided with a connecting part, which is slidably disposed in the first groove and the second groove.

5. The dual instrument switch assembly of claim 4, wherein, The sliding groove further includes a first linear sliding groove and a second linear sliding groove. The first end of the first sleeve is formed with a first linear sliding groove, and the second end of the second sleeve is formed with a second linear sliding groove. A portion of the first sliding part is disposed in the first linear sliding groove, and a portion of the second sliding part is disposed in the second linear sliding groove.

6. The dual instrument switch assembly of claim 5, wherein, The first sliding portion includes a first rod portion and a first protrusion, the first protrusion being disposed at one end of the first rod portion near the first instrument, and at least a portion of the first protrusion being disposed in the first linear groove; and / or, The second sliding part includes a second rod and a second protrusion. The second protrusion is disposed at the end of the second rod away from the second instrument, and at least part of the second protrusion is disposed in the second linear groove.

7. The dual instrument switch assembly of claim 6, wherein, The outer wall of the first sleeve has a guide portion, and the inner wall of the second sleeve has a guide groove that matches the guide portion.

8. The dual instrument switch assembly of claim 7, wherein, There are multiple guide sections, which are spaced apart circumferentially along the outer wall of the first sleeve.

9. The dual instrument switch assembly of claim 1, wherein, The outer wall of the rotating sleeve is surrounded by a rotational force-applying part, and the end of the handle portion away from the first instrument is provided with a rotational mating part.

10. A medical device, comprising: A dual instrument switching assembly as claimed in any one of claims 1 to 9, a first instrument and a second instrument in respective initial positions within an outer protective sheath, the first instrument and the second instrument in respective working positions at least partially outside the outer protective sheath.

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