Electric slip ring assembly and high-frequency electrotome

Abstract

The utility model discloses an electric slip ring assembly and a high-frequency electrotome. The electric slip ring assembly comprises a connection socket which is of a cylindrical structure and is internally provided with a plugging circular hole; the number of the conducting rings is two, the two conducting rings are arranged on the peripheral wall of the connecting socket in a sleeving mode, and the two conducting rings are arranged in a spaced mode; the number of the conducting strips is two, each conducting strip is in sliding contact with one conducting ring, the conducting strips are made of elastic materials, and the conducting strips are in contact with the conducting rings under the action of elastic force. The electric slip ring assembly is used for the high-frequency electrotome, enables the sleeve of the high-frequency electrotome to rotate by 360 degrees, and is simple in structure, capable of guaranteeing reliability of electric connection, simple in overall structure and convenient to machine.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and more specifically, to an electric slip ring assembly and a high-frequency electric knife. Background Art

[0002] High-frequency electrosurgical unit is a common surgical medical device. It heats the tissue when it comes into contact with the body through the high-frequency and high-voltage current generated by the effective electrode tip, thereby separating and coagulating the body tissue, thereby achieving the purpose of cutting and stopping bleeding.

[0003] The sleeve and jaw assembly of the high-frequency electric knife need to rotate when in use, so a slip ring structure needs to be set up on the electrical connection part to enable the sleeve to rotate while ensuring electrical connection. Due to the need for sliding contact, the reliability of the slip ring structure in the prior art is not enough. Most of them are single-point contacts, which usually lead to electrical connection failure due to insufficient contact pressure or too few contact points. Therefore, the reliability of the electrical connection cannot be guaranteed. How to solve the problem of the reliability of sliding electrical connection is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model innovatively provides an electric slip ring assembly and a high-frequency electric knife, which can solve the technical problem of low reliability of slip ring electrical connection of high-frequency electric knife in the prior art.

[0005] In order to achieve the above technical objectives, the utility model discloses, in a first aspect, an electric slip ring assembly, comprising:

[0006] The connecting socket is a cylindrical structure with a circular plug hole formed inside;

[0007] Conductive rings, two of which are provided, the two conductive rings are sleeved on the outer peripheral wall of the connecting socket, and the two conductive rings are spaced apart from each other;

[0008] Conductive sheets, two of which are provided, each of which is provided in sliding contact with one of the conductive rings, the conductive sheets are made of elastic material, and the conductive sheets are in contact with the conductive rings under the action of elastic force.

[0009] Furthermore, at least one fixing hole is respectively provided near both ends of the connection socket, and the fixing hole is used for installing a connecting piece.

[0010] Furthermore, an annular convex rib is formed on the outer peripheral wall of the connecting socket along its circumference, and the two conductive rings are respectively located on both sides of the annular convex rib.

[0011] Furthermore, a limiting rib is provided on each side of the annular rib, the limiting rib is an annular structure, a mounting groove is formed between the annular rib and the limiting rib, and the conductive ring is embedded in the mounting groove.

[0012] Furthermore, a limiting notch is formed on the limiting convex rib.

[0013] The first end of the conductive ring in the axial direction protrudes to form a limiting block, and the limiting block is embedded in the limiting notch.

[0014] Furthermore, two connecting sockets are independently provided, and one conductive ring is provided on each connecting socket.

[0015] Furthermore, the conductive sheets are of a bent structure, and each of the conductive sheets is formed with at least two contact points that are in contact with the conductive ring.

[0016] Furthermore, the conductive sheet is an arc sheet, which is attached to the outer side wall of the conductive ring to form a plurality of contact points.

[0017] Furthermore, a protrusion structure is formed on the conductive ring, the protrusion structure extends along the circumference of the conductive ring, and the protrusion structure is in sliding contact with the conductive sheet.

[0018] The second aspect of the utility model discloses a high-frequency electric knife, comprising a handle, a sleeve and a jaw assembly, characterized in that it also comprises the above-mentioned electric slip ring assembly,

[0019] The electric slip ring assembly is arranged in the handle, the jaw assembly is arranged at the first end of the sleeve, and the second end of the sleeve extends into the handle and is fixedly connected to the connection socket.

[0020] The two conductive rings are electrically connected to the jaw assembly, and the two conductive sheets are electrically connected to a power line.

[0021] The beneficial effects of the utility model are:

[0022] The electric slip ring assembly provided by the utility model is used for a high-frequency electric knife, so that the sleeve of the high-frequency electric knife can realize 360-degree rotation, and its structure is simple, the reliability of the electric connection can be ensured, the overall structure is simple, and the processing is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram showing the structure of an electric slip ring assembly according to an embodiment of the utility model is shown;

[0024] Figure 2 A schematic diagram showing the structure of a connection socket according to an embodiment of the utility model is shown;

[0025] Figure 3A schematic diagram showing the structure of a conductive ring in an embodiment of the utility model is shown;

[0026] Figure 4 A schematic diagram showing the structure of a conductive sheet according to an embodiment of the utility model is shown;

[0027] Figure 5 A schematic structural diagram of a conductive sheet in another embodiment of the utility model is shown;

[0028] Figure 6 A schematic structural diagram of a conductive sheet in another embodiment of the utility model is shown;

[0029] Figure 7 A schematic structural diagram of an electric slip ring assembly according to another embodiment of the utility model is shown;

[0030] Figure 8 A schematic structural diagram of a conductive ring in another embodiment of the utility model is shown;

[0031] Fig. 9 A schematic structural diagram of a conductive sheet according to another embodiment of the utility model is shown.

[0032] In the figure,

[0033] 1. Connecting socket; 11. Plug-in round hole; 12. Fixing hole; 13. Annular rib; 14. Position-limiting rib; 15. Position-limiting notch; 2. Conductive ring; 21. Position-limiting block; 22. Electrical connection piece; 23. Raised structure; 3. Conductive piece; 31. Contact point; 4. Connector DETAILED DESCRIPTION

[0034] The electric slip ring assembly and the high-frequency electric knife provided by the utility model are explained and illustrated in detail below in conjunction with the drawings in the specification.

[0035] The electric slip ring assembly provided by the utility model is used for a high-frequency electric knife, so that the sleeve of the high-frequency electric knife can achieve 360° rotation, and its structure is simple, which can ensure the reliability of the electrical connection, and the overall structure is simple and convenient for processing. The utility model is described in detail in combination with specific embodiments as follows:

[0036] In one embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the utility model provides an electric slip ring assembly, comprising: a connection socket 1, a conductive ring 2 and a conductive sheet 3, wherein the conductive ring 2 is sleeved on the connection socket 1, and the conductive sheet 3 is in sliding contact with the conductive ring 2 for conductive connection. In this embodiment, the connection socket 1 is a cylindrical structure, and a plug-in circular hole 11 is formed inside the cylindrical structure, and the plug-in circular hole 11 is used to connect with the sleeve.

[0037] like Figure 1 , Figure 3As shown, two conductive rings 2 are provided, and an electrical connection sheet 22 for connecting to a wire is provided on the conductive ring 2. The two conductive rings 2 are sleeved on the outer peripheral wall of the connection socket 1. Optionally, the conductive ring 2 can be fixed to the connection socket 1 by hot melting, bonding, integral molding, etc. The two conductive rings 2 are arranged at intervals from each other, and two conductive sheets 3 are provided. Each conductive sheet 3 is arranged in sliding contact with a conductive ring 2. The conductive sheet 3 is made of elastic material, and the conductive sheet 3 contacts the conductive ring 2 under the action of elastic force. The two conductive sheets 3 are used to connect to power lines of different electrodes, and the conductive sheets 3 supply power to the conductive ring 2.

[0038] Alternatively, if Figure 2 As shown, at least one fixing hole 12 is respectively provided near both ends of the connecting socket 1, and the fixing hole 12 is used to install the connecting member 4. The connecting member 4 can be, for example, a bolt, and the fixing hole 12 is set as a threaded hole, and the sleeve is fixed by the bolt. Alternatively, the connecting member 4 is a pin, and the fixing hole 12 is a smooth hole, and an interference fit is formed between the pin and the fixing hole 12, and the connecting socket 1 is fixed to the sleeve by the pin.

[0039] In one embodiment, an annular rib 13 is formed on the outer wall of the connecting socket 1 along its circumference, and the two conductive rings 2 are respectively located on both sides of the annular rib 13. The annular rib 13 serves to separate the two conductive rings 2 to ensure that the two conductive rings 2 will not contact each other, and at the same time, it can also increase electrical safety performance such as creepage distance and air gap.

[0040] Optionally, a limiting rib 14 is provided on each side of the annular rib 13, and the limiting rib 14 is an annular structure. A mounting groove is formed between the annular rib 13 and the limiting rib 14, and the conductive ring 2 is embedded in the mounting groove. The setting of the mounting groove plays an axial limiting role in the installation of the conductive ring 2, and can prevent the conductive ring 2 from being displaced in the circumferential direction. Furthermore, a limiting notch 15 is formed on the limiting rib 14, and the first end of the conductive ring 2 in the axial direction protrudes to form a limiting block 21, and the limiting block 21 is embedded in the limiting notch 15. The limiting notch 15 and the limiting block 21 cooperate to limit the conductive ring 2 circumferentially, so that the conductive ring 2 will not rotate in the circumferential direction, and the reliability of the installation of the conductive ring 2 is further improved.

[0041] In one embodiment, two connecting sockets 1 are independently provided, each connecting socket 1 is provided with a conductive ring 2, and each of the two connecting sockets 1 is provided with one or two fixing holes 12. The two connecting sockets 1 are independently provided to ensure that the two conductive rings 2 will not contact each other.

[0042] The conductive sheet 3 is a bent structure, and two contact points are formed between each conductive sheet 3 and the conductive ring 2. In one embodiment, Figure 4As shown, the conductive sheet 3 is a V-shaped structure, and two contact points 31 are formed between each conductive sheet 3 and the conductive ring 2. The two side walls of the conductive sheet 3 are pressed against the conductive ring 2 and the two contact points 31 are in conductive contact with the conductive ring 2, which can improve the reliability of the conductive contact and ensure reliable power transmission. Optionally, a hemispherical convex point is set at the position of the inner side wall of the conductive sheet 3 in contact with the conductive ring 2, and the hemispherical convex point constitutes the contact point 31. The contact point 31 is in contact with the conductive ring 2, which can ensure effective conductive contact on the one hand and reduce friction on the other hand. Figure 5 , Figure 6 As shown, in other embodiments, the conductive sheet 3 may also be configured as other bending structures. Optionally, the contact point 31 may be composed of a hemispherical convex point, or a convex structure may be formed by bending.

[0043] In one embodiment, Figure 7 , Figure 8 , Fig. 9 As shown, the conductive sheet 3 is an arc sheet, which is attached to the outer wall of the conductive ring 2 to form multiple contact positions. The conductive sheet 3 and the conductive ring 2 form an arc surface contact, which can increase the contact area. Figure 6 As shown, in this embodiment, a protruding structure 23 is formed on the conductive ring 2, and the protruding structure 23 extends along the circumference of the conductive ring 2, and the protruding structure 23 is in sliding contact with the conductive sheet 3. The protruding structure 23 is in contact with the conductive sheet 3, which can increase the pressure at the contact position with the conductive sheet 3, thereby improving the reliability of the contact. The protruding structure 23 is in an arc shape, and forms an arc contact with the conductive sheet 3, which can also ensure that there is a large contact area between the conductive sheet 3 and the conductive ring 2, thereby ensuring the effectiveness of power transmission.

[0044] In one embodiment, the utility model further provides a high-frequency electric knife, comprising a handle, a sleeve, a jaw assembly and the above-mentioned electric slip ring assembly. The electric slip ring assembly is arranged in the handle, the jaw assembly is arranged at the first end of the sleeve, the second end of the sleeve extends into the handle and is fixedly connected to the connection socket 1, two conductive rings 2 are electrically connected to the jaw assembly, and two conductive sheets 3 are fixed on the inside of the handle and are electrically connected to the power cord.

[0045] Optionally, the second end of the sleeve extends into the plug-in circular hole 11 of the connection socket 1, and then is inserted into the fixing hole 12 through the connector 4 to fix the sleeve. The two conductive rings 2 are respectively connected to the positive and negative poles of the jaw assembly through wires. The two conductive sheets 3 are fixedly connected to the inner wall of the handle and are respectively connected to the positive and negative poles of the power cord. The connection socket 1 and the conductive ring 2 can rotate synchronously with the sleeve, and the conductive sheet 3 maintains sliding contact with the conductive ring 2 during the rotation, which can provide reliable and stable power supply to the jaw assembly.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric slip ring assembly, characterized in that: include: The connecting socket is a cylindrical structure with a circular plug hole formed inside; Conductive rings, two of which are provided, the two conductive rings are sleeved on the outer peripheral wall of the connecting socket, and the two conductive rings are spaced apart from each other; Conductive sheets, two of which are provided, each of which is provided in sliding contact with one of the conductive rings, the conductive sheets are made of elastic material, and the conductive sheets are in contact with the conductive rings under the action of elastic force.

2. The electric slip ring assembly according to claim 1, characterized in that: At least one fixing hole is respectively arranged near both ends of the connection socket, and the fixing hole is used to install the connection piece.

3. The electric slip ring assembly according to claim 2, characterized in that: An annular convex rib is formed on the outer peripheral wall of the connecting socket along its circumference, and the two conductive rings are respectively located on both sides of the annular convex rib.

4. The electric slip ring assembly according to claim 3, characterized in that: A limiting convex rib is arranged on each side of the annular convex rib, the limiting convex rib is an annular structure, a mounting groove is formed between the annular convex rib and the limiting convex rib, and the conductive ring is embedded in the mounting groove.

5. The electric slip ring assembly according to claim 4, characterized in that: A limiting notch is formed on the limiting convex rib. The first end of the conductive ring in the axial direction protrudes to form a limiting block, and the limiting block is embedded in the limiting notch.

6. The electric slip ring assembly according to claim 2, characterized in that: Two connecting sockets are independently provided, and one conductive ring is provided on each connecting socket.

7. The electric slip ring assembly according to any one of claims 1 to 6, characterized in that: The conductive sheets are bent structures, and each of the conductive sheets is formed with at least two contact points that are in contact with the conductive ring.

8. The electric slip ring assembly according to any one of claims 1 to 6, characterized in that: The conductive sheet is an arc sheet, which is attached to the outer side wall of the conductive ring to form a plurality of contact points.

9. The electric slip ring assembly according to claim 8, characterized in that: A protrusion structure is formed on the conductive ring. The protrusion structure extends along the circumference of the conductive ring. The protrusion structure is in sliding contact with the conductive sheet.

10. A high-frequency electric knife, comprising a handle, a sleeve and a jaw assembly, characterized in that: Also includes the electric slip ring assembly according to any one of claims 1 to 9, The electric slip ring assembly is arranged in the handle, the jaw assembly is arranged at the first end of the sleeve, and the second end of the sleeve extends into the handle and is fixedly connected to the connection socket. The two conductive rings are electrically connected to the jaw assembly, and the two conductive sheets are electrically connected to a power line.

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