Medical handle and biopsy device

Abstract

The utility model discloses a medical handle and a biopsy device, and relates to the technical field of medical instruments, the medical handle is matched with a biopsy needle, and the medical handle comprises a handle body assembly, a needle head assembly and a needle head assembly, the first electrode penetrates through the handle body assembly and is provided with a first end and a second end which are opposite to each other, the first end is fixed in the containing cavity and is provided with a wiring hole, and the second end extends out of the containing cavity to be connected with a first butt joint electrode of the biopsy needle; the first wire is arranged in the accommodating cavity, and one end of the first wire penetrates into the wiring hole; and the locking assembly is at least partially arranged in the wiring hole so as to lock the first wire in the wiring hole. According to the technical scheme provided by the utility model, the possibility that the wire falls off from the electrode is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical handle and biopsy device. Background Technology

[0002] A biopsy device generally includes a handle and a biopsy needle. Electrodes are installed inside the handle and the biopsy needle, and the handle and the biopsy needle are electrically connected by the docking of the electrodes.

[0003] During the assembly of medical handles, to facilitate operation, the wires are usually soldered to the electrodes first. After soldering, the electrodes with wires are then installed onto the housing of the medical handle.

[0004] However, during the electrode installation process, it is easy for the wires to detach from the electrodes. Utility Model Content

[0005] The main purpose of this invention is to provide a medical handle and biopsy device that aims to reduce the possibility of lead wires detaching from the electrodes.

[0006] To achieve the above objectives, the medical handle proposed in this utility model is adapted to a biopsy needle and includes:

[0007] The handle assembly has a receiving cavity;

[0008] The first electrode is disposed in the handle assembly and has a first end and a second end opposite to each other. The first end is fixed in the receiving cavity and is provided with a wiring hole, and the second end extends out of the receiving cavity to connect to the first docking electrode of the biopsy needle.

[0009] A first wire is disposed within the receiving cavity, with one end of the first wire passing through the wiring hole; and

[0010] A locking assembly is at least partially disposed within the wiring hole to lock the first wire within the wiring hole.

[0011] In one embodiment, the locking assembly includes a locking member, the first electrode has a locking hole corresponding to the locking member, the locking hole communicates with the wiring hole, one end of the locking member is threadedly connected to the locking hole, and the other end of the locking member extends into the wiring hole and presses the first wire against the inner wall of the wiring hole.

[0012] In one embodiment, the first electrode includes:

[0013] The mounting part is detachably connected to the inner wall of the receiving cavity, and the wiring hole and the locking hole are provided in the mounting part; and

[0014] A connecting portion, which is connected to the mounting portion, and the connecting portion extends partially through the handle assembly to the outside of the receiving cavity to form the second end.

[0015] In one embodiment, the second end is provided with a snap-fit ​​structure for engaging with a biopsy needle.

[0016] In one embodiment, the snap-fit ​​structure includes a snap-fit ​​groove disposed on the side wall of the second end, and the second end engages with the biopsy needle through the snap-fit ​​groove.

[0017] In one embodiment, the snap-fit ​​groove has opposing first inner walls and second inner walls, with the first inner wall disposed on the side of the second inner wall near the first end;

[0018] Wherein, the first inner wall is arc-shaped and recessed in a direction away from the second inner wall; and / or, the second inner wall is arc-shaped and protrudes in a direction close to the first inner wall.

[0019] In one embodiment, the medical handle further includes a sealing structure that seals the connection between the first electrode and the handle assembly.

[0020] In one embodiment, the medical handle further includes a snap-fit ​​component, which is disposed on the outer wall of the handle assembly and spaced apart from the first electrode, for snap-fit ​​engagement with the biopsy needle.

[0021] In one embodiment, the snap-fit ​​assembly includes two oppositely arranged snaps, and the sidewalls of the two snaps facing each other or back to back are provided with snap-fit ​​protrusions, which engage with the biopsy needle through the snap-fit ​​protrusions.

[0022] This utility model also proposes a biopsy device, comprising:

[0023] The aforementioned medical handle; and

[0024] The biopsy needle is detachably connected to the handle assembly and is provided with a first docking electrode, which docks with the first electrode.

[0025] The medical handle of this utility model includes a handle assembly, a first electrode, a first wire, and a locking assembly. The first electrode has a wiring hole, and one end of the first wire extends into the wiring hole and is locked by the locking assembly. During assembly, the first wire and the first electrode are first locked together by the locking assembly to ensure reliable connection between them. Then, the first electrode is fixed to the handle assembly. This simple operation reduces the possibility of the first wire loosening or falling off during assembly and allows for detachment of the first electrode and the first wire. Even if the first wire falls off due to pulling, it will not be damaged. It also facilitates individual replacement of the first electrode or the first wire, reducing maintenance costs. Furthermore, the connection point between the first wire and the first electrode, as well as the locking assembly, are all located within a receiving cavity and protected by the handle assembly, reducing the possibility of damage and extending the service life of the medical handle. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A cross-sectional view of an embodiment of the medical handle provided by this utility model. Figure 1 ;

[0028] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 3 Schematic diagram of the structure of the first electrode of the medical handle provided by this utility model Figure 1 ;

[0030] Figure 4 Schematic diagram of the structure of the first electrode of the medical handle provided by this utility model Figure 2 ;

[0031] Figure 5 A cross-sectional view of an embodiment of the medical handle provided by this utility model. Figure 2 ;

[0032] Figure 6 A schematic diagram of the buckle structure of the snap-fit ​​assembly of the medical handle provided by this utility model;

[0033] Figure 7 This is a schematic diagram of an embodiment of the biopsy device provided by this utility model.

[0034] Explanation of icon numbers:

[0035] 100. Medical handle; 110. Handle assembly; 111. Receiving cavity; 120. First electrode; 121. Mounting part; 1211. Wiring hole; 1212. Locking hole; 122. Connecting part; 1221. Snap-fit ​​groove; 1222. First inner wall; 1223. Second inner wall; 130. First wire; 140. Locking assembly; 141. Locking element; 150. Snap-fit ​​assembly; 151. Buckle; 1511. Snap-fit ​​protrusion;

[0036] 200. Biopsy needle.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] This utility model proposes a medical handle.

[0043] Please see Figures 1 to 2 , Figure 1 A cross-sectional view of an embodiment of the medical handle provided by this utility model. Figure 1 , Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0044] In one embodiment of this utility model, the medical handle 100 is adapted to the biopsy needle 200, and includes:

[0045] The handle assembly 110 is provided with a receiving cavity 111;

[0046] The first electrode 120 is disposed in the handle assembly 110 and has a first end and a second end opposite to each other. The first end is fixed in the receiving cavity 111 and is provided with a wiring hole 1211, and the second end extends out of the receiving cavity 111 to connect to the first docking electrode of the biopsy needle 200.

[0047] A first wire 130 is disposed within the receiving cavity 111, with one end of the first wire 130 passing through a wiring hole 1211; and

[0048] The locking assembly 140 is at least partially disposed within the wiring hole 1211 to lock the first wire 130 within the wiring hole 1211.

[0049] The medical handle 100 in this utility model includes a handle assembly 110, a first electrode 120, a first wire 130, and a locking assembly 140. The first electrode 120 is provided with a wiring hole 1211. One end of the first wire 130 extends into the wiring hole 1211 and is locked by the locking assembly 140. During assembly, the first wire 130 and the first electrode 120 are first locked together by the locking assembly 140 to ensure the reliability of the connection between the first wire 130 and the first electrode 120. Then, the first electrode 120 is fixed to the handle assembly 110. The operation is simple, reducing the possibility of the first wire 130 loosening or falling off during the assembly of the first electrode 120 and the handle assembly 110. It also makes the first electrode 120 and the first wire 130 detachable. Even if the first wire 130 falls off due to pulling, it will not be damaged. It also makes it convenient to replace the first electrode 120 or the first wire 130 separately, reducing maintenance costs. On the other hand, the connection point between the first lead wire 130 and the first electrode 120, as well as the locking assembly 140, are all located inside the receiving cavity 111 and protected by the handle assembly 110, which reduces the possibility of damage and extends the service life of the medical handle 100.

[0050] The locking assembly 140 can be used to fix the first wire 130 by means of locking screws, spring-loaded connectors, etc. The first electrode 120 can be an electrode that supplies power to the biopsy needle 200, or it can be an electrode that forms a circuit for electrocautery or electrocoagulation.

[0051] In one embodiment, the locking assembly 140 includes a locking member 141. The first electrode 120 is provided with a locking hole 1212 corresponding to the locking member 141. The locking hole 1212 communicates with the wiring hole 1211. One end of the locking member 141 is threadedly connected to the locking hole 1212, and the other end of the locking member 141 extends into the wiring hole 1211 and presses the first wire 130 against the inner wall of the wiring hole 1211.

[0052] Reference Figure 2 In this embodiment of the invention, the locking assembly 140 includes a locking member 141. The first electrode 120 is provided with a locking hole 1212 communicating with the wiring hole 1211. Specifically, in this embodiment, the axis of the locking hole 1212 is perpendicular to the axis of the wiring hole 1211. One end of the locking member 141 is threadedly connected to the locking hole 1212, and the other end extends into the wiring hole 1211. By rotating the locking member 141, it can be inserted into the wiring hole 1211, thereby pressing the first wire 130 tightly against the inner wall of the wiring hole 1211, fixing the first wire 130, preventing the first wire 130 from falling out of the wiring hole 1211, and facilitating disassembly and assembly. Specifically, the locking member 141 can be a set screw, a common screw, etc.

[0053] In one embodiment, the first electrode 120 includes:

[0054] Mounting part 121 is detachably connected to the inner wall of receiving cavity 111, and wiring hole 1211 and locking hole 1212 are provided in mounting part 121; and

[0055] The connecting portion 122 is connected to the mounting portion 121, and the connecting portion 122 partially extends through the handle assembly 110 to the outside of the receiving cavity 111 to form a second end.

[0056] Reference Figure 3 In this embodiment of the invention, the first electrode 120 includes a mounting portion 121 and a connecting portion 122. The mounting portion 121 is located inside the receiving cavity 111 and is detachably connected to the inner wall of the receiving cavity 111, facilitating maintenance and replacement of the first electrode 120. One end of the connecting portion 122 is located in the mounting portion 121, and the other end of the connecting portion 122 extends through the handle assembly 110 to the outside of the receiving cavity 111, for docking with the first docking electrode on the biopsy needle 200. Specifically, in this embodiment, the mounting portion 121 and the connecting portion 122 are T-shaped. One end of the connecting portion 122 is located in the middle of the mounting portion 121, and both ends of the mounting portion 121 are fastened to the inner wall of the receiving cavity 111 by screws, ensuring a firm connection between the first electrode 120 and the handle assembly 110 and reducing the possibility of the first electrode 120 falling off. (Refer to...) Figure 4 The wiring hole 1211 is located on the side of the mounting part 121 away from the connecting part 122, which facilitates wiring operations and also facilitates the assembly of the first electrode 120 and the handle assembly 110 after connecting the first wire 130.

[0057] In one embodiment, the second end is provided with a snap-fit ​​structure for engaging with the biopsy needle 200.

[0058] In an embodiment of this invention, the second end of the first electrode 120 is provided with a snap-fit ​​structure. The first electrode 120 engages with the biopsy needle 200, allowing the biopsy needle 200 to be mounted on the medical handle 100. The first electrode 120 has both an electrical connection function for docking with the first docking electrode and a physical connection function for fixing the biopsy needle 200, simplifying the connection structure between the medical handle 100 and the biopsy needle 200 and improving the efficiency of attaching and detaching the biopsy needle 200 from the medical handle 100. The snap-fit ​​structure can be implemented in various forms such as a snap-fit ​​151 or a slot, allowing for quick attachment and detachment, further improving the efficiency of attaching and detaching the biopsy needle 200.

[0059] In one embodiment, the snap-fit ​​structure is a snap-fit ​​groove 1221, which is located on the side wall of the second end, and the second end is snap-fitted with the biopsy needle 200 through the snap-fit ​​groove 1221.

[0060] Reference Figure 2In an embodiment of this utility model, the snap-fit ​​structure includes a snap-fit ​​groove 1221. Specifically, the snap-fit ​​groove 1221 is disposed on the side of the second end of the first electrode 120 facing the tail of the medical handle 100. The structure is simple, easy to process, and reduces the manufacturing cost of the first electrode 120.

[0061] In one embodiment, the snap-fit ​​groove 1221 has a first inner wall 1222 and a second inner wall 1223 facing each other, with the first inner wall 1222 disposed on the side of the second inner wall 1223 near the first end;

[0062] Wherein, the first inner wall 1222 is arc-shaped and recessed in a direction away from the second inner wall 1223; and / or, the second inner wall 1223 is arc-shaped and protrudes in a direction close to the first inner wall 1222.

[0063] Reference Figure 3 In an embodiment of this invention, the snap-fit ​​groove 1221 has a first inner wall 1222 and a second inner wall 1223. The first inner wall 1222 is arc-shaped and recessed away from the second inner wall 1223, serving to avoid obstruct the biopsy needle 200 and facilitate the snap-fit ​​engagement of the biopsy needle 200 with the snap-fit ​​groove 1221. The second inner wall 1223 is arc-shaped and protrudes towards the first inner wall 1222, facilitating the insertion of the structure on the biopsy needle 200 corresponding to the snap-fit ​​groove 1221 into the snap-fit ​​groove 1221, making it easier for the biopsy needle 200 to snap-fit ​​with the first electrode 120.

[0064] In one embodiment, the medical handle 100 further includes a sealing structure that seals the connection between the first electrode 120 and the handle assembly 110.

[0065] In this embodiment of the invention, the first electrode 120 and the handle assembly 110 are sealed by a sealing structure, reducing the possibility of liquids, dust, etc. from the external environment entering the receiving cavity 111 through the gap between the connecting part 122 and the handle assembly 110. This ensures that the inside of the receiving cavity 111 is dry and clean, reduces the risk of short circuits in the components inside the receiving cavity 111, and thus extends the service life of the medical handle 100. The sealing structure can be achieved by providing a sealing gasket, sealing ring, or other similar material between the first electrode 120 and the handle assembly 110, or by filling with sealant.

[0066] In one embodiment, the medical handle 100 further includes a snap-fit ​​assembly 150, which is disposed on the outer wall of the handle assembly 110 and spaced apart from the first electrode 120, for snap-fit ​​engagement with the biopsy needle 200.

[0067] Reference Figure 5In this embodiment of the invention, the snap-fit ​​component 150 of the medical handle 100 engages with the biopsy needle 200, fixing the biopsy needle 200 to the medical handle 100. This allows for quick assembly and disassembly, convenient operation, and easy replacement of the biopsy needle 200. Specifically, in this embodiment, the snap-fit ​​component 150 is located at the rear of the medical handle 100, and the first electrode 120 is located at the front of the medical handle 100. The biopsy needle 200 engages with both the first electrode 120 and the snap-fit ​​component 150, improving the robustness of the connection between the biopsy needle 200 and the medical handle 100, reducing the possibility of the biopsy needle 200 falling off, and improving surgical installation.

[0068] In one embodiment, the snap-fit ​​assembly 150 includes two oppositely arranged snap fasteners 151, and the sidewalls of the two snap fasteners 151 opposite or back to each other are provided with snap-fit ​​protrusions 1511, which engage with the biopsy needle 200 through the snap-fit ​​protrusions 1511.

[0069] Reference Figure 5 and Figure 6 In this embodiment of the invention, the snap-fit ​​assembly 150 includes two opposing snaps 151, each with a snap-fit ​​protrusion 1511. The snap-fit ​​protrusion 1511 can be located on the sidewalls of the two snaps 151 facing each other or on the sidewalls of the two snaps 151 facing away from each other. The snap-fit ​​protrusion 1511 engages with the biopsy needle 200, resulting in a simple structure that is easy to implement. Specifically, in this embodiment, the snaps 151 and the handle assembly 110 are connected by screws.

[0070] Reference Figure 1 and Figure 7 This utility model also proposes a biopsy device, comprising:

[0071] The aforementioned medical handle 100; and

[0072] The biopsy needle 200 is detachably connected to the handle assembly 110 and is provided with a first docking electrode, which docks with the first electrode 120.

[0073] The specific structure of the medical handle 100 is as described in the above embodiments. Since this biopsy device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The biopsy needle 200 is detachably connected to the medical handle 100, which can be achieved by snap-fit ​​or plug-in connection. Specifically, in this embodiment, the biopsy needle 200 is snapped onto the medical handle 100 via the first electrode 120 and the snap-fit ​​assembly 150. The biopsy needle 200 is provided with a first docking electrode, which docks with the first electrode 120 to achieve electrical signal transmission.

[0074] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A medical handle adapted to a biopsy needle, characterized in that, include: The handle assembly has a receiving cavity; The first electrode is disposed in the handle assembly and has a first end and a second end opposite to each other. The first end is fixed in the receiving cavity and is provided with a wiring hole, and the second end extends out of the receiving cavity to connect to the first docking electrode of the biopsy needle. A first wire is disposed within the receiving cavity, with one end of the first wire passing through the wiring hole; and A locking assembly is at least partially disposed within the wiring hole to lock the first wire within the wiring hole.

2. The medical handle as described in claim 1, characterized in that, The locking assembly includes a locking member, and the first electrode has a locking hole corresponding to the locking member. The locking hole is connected to the wiring hole. One end of the locking member is threaded to the locking hole, and the other end of the locking member extends into the wiring hole and presses the first wire against the inner wall of the wiring hole.

3. The medical handle as described in claim 2, characterized in that, The first electrode includes: The mounting part is detachably connected to the inner wall of the receiving cavity, and the wiring hole and the locking hole are provided in the mounting part; and A connecting portion, which is connected to the mounting portion, and the connecting portion extends partially through the handle assembly to the outside of the receiving cavity to form the second end.

4. The medical handle as described in claim 1, characterized in that, The second end is provided with a snap-fit ​​structure, which is used to snap-fit ​​with the biopsy needle.

5. The medical handle as described in claim 4, characterized in that, The snap-fit ​​structure includes a snap-fit ​​groove, which is located on the side wall of the second end, and the second end is snapped into the biopsy needle through the snap-fit ​​groove.

6. The medical handle as described in claim 5, characterized in that, The snap-fit ​​groove has a first inner wall and a second inner wall opposite to each other, with the first inner wall located on the side of the second inner wall near the first end; Wherein, the first inner wall is arc-shaped and recessed in a direction away from the second inner wall; and / or, the second inner wall is arc-shaped and protrudes in a direction close to the first inner wall.

7. The medical handle as described in any one of claims 1 to 6, characterized in that, The medical handle also includes a sealing structure that seals the connection between the first electrode and the handle assembly.

8. The medical handle as described in any one of claims 1 to 6, characterized in that, The medical handle also includes a snap-fit ​​component, which is disposed on the outer wall of the handle assembly and spaced apart from the first electrode, for snap-fitting with the biopsy needle.

9. A biopsy device, characterized in that, include: The medical handle as described in any one of claims 1 to 8; as well as The biopsy needle is detachably connected to the handle assembly and is provided with a first docking electrode, which docks with the first electrode.

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