TWI556788B - Switch structure for an electronic surgical device - Google Patents

Description

Switch structure of electronic surgical device

The present invention relates to an electronic surgical device, and more particularly to a switch structure of an electronic surgical device.

The electric burning technology uses the electric current to pass through the human body, so that the human tissue generates impedance and generates high heat. In recent years, when performing endoscopic surgery or no bleeding operation, the most commonly used cutting and peeling surgical tools can also be used for hemostasis. Because of electric burning, it can effectively burn tissue, reduce blood loss, shorten operation time, reduce the chance of complications such as infection, and improve medical quality. Therefore, it is a common and mature medical equipment in the current operation room.

The electronic surgical device for electric burning - the electric burning knife, the general electric burning knife is provided with a button corresponding to the switch, so that the user can quickly switch the operation, and the electric burning knife currently used in the market is switched. The internal structure often uses a circuit board (TACT SWITCH) or a metal dome (METAL DOME), in which the circuit board has a complicated process and is relatively expensive, and the metal shrapnel has a short pressing life, and the design tolerance is small, as long as the size is slightly biased. Move, it is easy to cause a bad hand.

In view of the above, the present invention provides a switch structure of an electronic surgical device that can solve the above problems, and an embodiment of the present invention provides a switch structure of an electronic surgical device, including an insulating substrate, a metal member, and a metal coil spring; the insulating substrate includes the first a surface, a second surface and at least one through hole, the second surface is opposite to the first surface, the through hole communicates with the first surface and the second surface; the metal member is disposed on the second surface; and the at least one metal coil spring is disposed on the first surface And located in the through hole, the metal coil spring comprises a first end and a second end, wherein the second end has a larger diameter than the through hole, and the first end has a smaller diameter than the through hole, and an external force is applied to the first end. The first end is electrically connected to the metal member; the elasticity of the metal coil spring is used to provide a touch feeling by the operator, the offset error which can be tolerated in the design is large, the mold is not required in the process, the service life is long and the price is low. .

An embodiment of the present invention provides a switch structure of an electronic surgical device, further comprising a housing covering the insulating substrate, the metal member and the metal coil spring.

An embodiment of the present invention provides a switch structure of an electronic surgical device, wherein the insulating substrate includes a fixing seat, the fixing seat is located at one end of the insulating substrate, and the fixing seat protrudes from the first surface of the insulating substrate, and is fixed by using a part of the insulating substrate Block, you can save costs and simplify the process. Another embodiment of the present invention provides a switch structure of an electronic surgical device, wherein the fixing base is not disposed on the insulating substrate, but is protruded from the inner surface of the housing, and can be further processed by using the manufacturing process to further save costs. .

An embodiment of the present invention provides a switch structure of an electronic surgical device, further comprising a wire disposed on the first surface, one end of the wire being connected to the second end of the metal coil spring, and the other end of the wire being fixed to the fixed seat, using the wire Fixing the metal coil spring maintains the metal coil spring with proper elasticity and is easier to assemble.

An embodiment of the present invention provides a switch structure of an electronic surgical device, wherein the wire has a hook portion, the hook portion is located at the other end of the wire, and is hooked to the fixed seat, and the hook portion is used for structural joint with the fixed seat. Instead of using an adhesive, the assembly is simplified and the cost is reduced.

An embodiment of the present invention provides a switch structure of an electronic surgical device. The housing further includes at least one button, and the button corresponds to the first end of the metal coil spring, and the button can move in a starting position and a closed position. When the button is in the starting position, The first end of the metal coil spring is electrically connected to the metal member by the pressing of the button, and the first end of the metal coil spring is disconnected from the metal member when the button is in the closed position.

1 is a perspective exploded view of an embodiment of the present invention. An embodiment of the present invention provides a switch structure of an electronic surgical device, which basically includes an insulating substrate 20, a metal member 30, and a first metal coil spring 10. The insulating substrate 20 includes a first surface 20A and a second surface 20B, and the first surface 20A and the second surface 20B are respectively opposite sides of the insulating substrate 20. A first through hole 21 is formed in the insulating substrate 20, and the first through hole 21 communicates with the first surface 20A and the second surface 20B. The metal member 30 is attached to the second surface 20B of the insulating substrate 20. The first metal coil spring 10 is disposed on the first surface 20A and corresponds to the position of the first through hole 21.

Referring to FIG. 4, a cross-sectional view of the button closing position of the embodiment of the present invention, the first metal coil spring 10 is surrounded by a single metal wire, so that the first metal coil spring 10 has a triangular shape. The first metal coil spring 10 includes a first end 10A and a second end 10B, and the second end 10B has a larger diameter than the first through hole 21, whereby the first metal coil spring 10 is under no external force. , will not touch the metal piece 30.

Please refer to FIG. 5 for a cross-sectional view of the button activation position according to the embodiment of the present invention. In contrast, since the diameter of the first end 10A is smaller than the diameter of the first through hole 21, when the external force is applied to the first end 10A, the first end 10A The metal member 30 is touched through the first through hole 21 so that the first metal coil spring 10 is electrically connected to the metal member 30.

After the first metal coil spring 10 is pressed down, it is electrically connected to the metal member 30. After the external force is removed, the first metal coil spring 10 returns to the original position and is not electrically connected to the metal member 30, thereby achieving the function of the switch. The invention utilizes the elasticity of the spring to provide a feeling of pressing and rebounding when the user operates, and the embodiment does not require a mold in the process, has a long service life, and the raw material is inexpensive.

Continuing to refer to FIG. 1 , in the switch structure of the electronic surgical device according to another embodiment of the present invention, the number of switches may be increased to two or more according to the needs of the user, that is, the insulating substrate 20 may be opened. The second through hole 22, the switch structure of the electronic surgical device further includes a second metal coil spring 11, the second metal coil spring 11 includes a first end 11A and a second end 11B, and the second end 11B has a larger diameter than the second The diameter of the through hole 22 is wide. The second metal coil spring 11 is operated in the same manner as the first metal coil spring 11 except that the electronic operating device corresponding to the opening of the second metal coil spring 11 is electrically different from the first metal coil spring. 10 The function of the electronic surgical device that is opened when the metal member 30 is electrically connected. For example, the function of the electronic surgical device corresponding to the first metal coil spring 10 may be a cutting function, and the function of the electronic surgical device corresponding to the second metal coil spring 11 is a blood coagulation function.

Referring to FIG. 1 and FIG. 4, in the present embodiment, a first guard ring 211 is disposed around the first through hole 21 to prevent the first metal coil 10 from shaking left and right. Please refer to FIG. 3 for a front view of the embodiment of the present invention. The first protection ring 211 is provided with a first fixing protrusion 212 and a second fixing protrusion 213 protruding above the first through hole 21. In other words, the minimum distance between the first fixing protrusion 212 and the second fixing protrusion 213 is smaller than the diameter of the first through hole 21 and smaller than the maximum diameter of the first metal coil 10, so that the first metal coil 10 can be abutted. Attached to the first through hole 21. Similarly, a second guard ring 221 is looped around the second through hole 22 of another embodiment to prevent the second metal coil 11 from shaking left and right. The third protection ring 221 is provided with a third fixing protrusion 222 and a fourth fixing protrusion 223.

In the present embodiment, the insulating substrate 20 includes a first fixing base 201, the first fixing base 201 is located at one end of the insulating substrate 20, and the first fixing base 201 protrudes from the first surface 20A of the insulating substrate 20. Similarly, the insulating substrate 20 includes a second holder 202, the second holder 202 is located at one end of the insulating substrate 20, and the second holder 202 protrudes from the first surface 20A of the insulating substrate 20.

In this embodiment, the first wire 101 is further disposed, the first wire 101 is disposed on the first surface 10A, and one end of the first wire 101 is connected to the second end 10B of the first metal coil spring 10, and the other end of the first wire 101 is The first wire 101 is fixed to the first fixing base 201 by using the first wire 101 to fix the first metal coil spring 10 to the first fixing base 201, so that the spring has appropriate elasticity. It is also easier to assemble. Similarly, in another embodiment, the second wire 111 is further disposed, the second wire 111 is disposed on the first surface 10A, and one end of the second wire 111 is connected to the second end 11B of the second metal coil spring 11, and the second The other end of the wire 111 is fixed to the second fixing base 202. By using a part of the insulating substrate 20 as the fixing base 201, cost and simplification of the process can be achieved.

An embodiment of the present invention provides a switch structure of an electronic surgical device, wherein the first wire 101 has a hook portion 102, and the hook portion 102 is located at the other end of the first wire 101, and is hooked to the first fixing base 201, and the hook is used. The structure 102 is structurally joined to the first mount 201 instead of using an adhesive, which simplifies assembly and reduces cost. Similarly, the second wire 111 in another embodiment also has a hook portion 112 corresponding to the second fixing seat 202.

2 is a general exploded view of an embodiment of the present invention. The switch structure of the electronic surgical device according to another embodiment of the present invention includes a housing 40 that is divided into a first housing 40A and a second housing. Body 40B. The first housing 40A is provided with a first button 50 corresponding to the first end 10A of the first metal coil spring 10, and a second button 51 corresponding to the second metal coil spring 11 One end 11A, and the first button 50 and the second button 51 are movable in a starting position and a closing position. The housing 40 covers the insulating substrate 20, the metal member 30, the first metal coil spring 10 and the second metal coil spring 11, and is mainly used for protection purposes, and avoids accidental contact or contamination during use.

Referring to FIG. 4, a cross-sectional view of the button closing position of the embodiment of the present invention, one end of the first button 50 abuts against the first end 10A of the first metal coil 10. Therefore, when the first button 50 is in the closed position, the first metal coil 10 is located on the upper side of the insulating substrate 20, and has no contact with the metal member 30, and the first metal coil 10 and the metal member 30 are in an open state.

Referring to FIG. 5 , a button activation position diagram of an embodiment of the present invention. When the first button 50 is in the activated position, the first end 10A of the first metal coil spring 10 is electrically connected to the metal by being pressed by the first button 50 . Item 30. In other words, when the first button 50 is pressed, the first button 50 is moved from the closed position to the activated position, and one end of the first button 50 presses the first end 10A of the first metal coil spring 10 such that the first end 10A wears The metal member 30 is contacted through the first through hole 21. Since the first metal coil spring 10 can be brought into contact with the metal member 30 to achieve the conduction effect, the present invention can smoothly achieve the switching effect even if the size is slightly offset compared with the conventional switching method. And has the feel of pressing.

Please refer to FIG. 1 and FIG. 6 for an overall cross-sectional view of the embodiment of the present invention. The body 30A of the metal member 30 is in the form of a piece, and one end of the metal member 30 includes a sleeve 31 for connecting the cutter used in the operation. The other end of the metal member 30 includes a stopper 32. The body 30A of the metal member 30 is attached to the second surface 20B of the insulating substrate 20, and the insulating substrate 20 is engaged between the sleeve 31 and the stopper portion 32. The width of the body 30A of the metal member 30 is larger than the diameter of the first through hole 21. A portion of the sleeve 31 extends beyond the housing 40 to facilitate replacement of a tool (not shown).

Please refer to FIG. 7 for an exploded perspective view of another embodiment of the present invention. The first fixing base 201 and the second fixing base 202 are not disposed on the insulating substrate 20 but protrude from the inner surface of the second housing 40B. The position is corresponding to the stop portion 32 of the metal member 30. In other words, when the metal member 30 is assembled to the second housing 40B, the stopping portion 32 is located between the first fixing base 201 and the second fixing base 202. Arrange on the same line. Therefore, when the second casing 40B is formed, the first fixing base 201 and the second fixing base 202 are formed at one time, and the insulating substrate 20 can be made of a standard substrate, so that the cost on the mold at the time of production can be further saved.

Please refer to FIG. 7 and FIG. 8 at the same time, which is a partial assembly diagram of another embodiment of the present invention. This figure discloses the complete assembled state of the interior of the casing 40. The front end of the housing 40 is tapered so that the user can more easily grasp the palm and operate flexibly. In the embodiment, the power cable 60 is also clearly shown. When the assembly is completed, the hook portion 102, the hook portion 112 and the metal member 30 are respectively disposed on the first fixing base 201, the second fixing base 202 and the stop. The position of the portion 32 is in communication with the power line 60. The second housing 40B further includes a holding portion 41. The holding portion 41 includes three recesses for respectively accommodating the three branch lines of the power line.

Please refer to FIG. 9 for a complete external view of the embodiment of the present invention. The housing 40 has a pen-shaped appearance, and the first button 50 and the second button 51 are movable outwardly.

Although the present invention has been described above in the foregoing embodiments, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of patent protection is subject to the definition of the scope of the patent application of the present invention.

10‧‧‧First metal coil spring
11‧‧‧Second metal coil spring
10A.11A‧‧‧ first end
10B.11B‧‧‧ second end
101‧‧‧First wire
111‧‧‧Second wire
102.112‧‧‧hook
20‧‧‧Insert substrate
20A‧‧‧ first surface
20B‧‧‧ second surface
21‧‧‧First through hole
211‧‧‧First Protection Ring
212‧‧‧First fixed convex
213‧‧‧Second fixed convex
22‧‧‧Second through hole
221‧‧‧Second protection ring
222‧‧‧3rd fixed convex
223‧‧‧4th fixed convex
201‧‧‧First mount
202‧‧‧Second fixed seat
30‧‧‧Metal parts
30A‧‧‧ Ontology
31‧‧‧ casing
32‧‧‧stop
40‧‧‧shell
40A‧‧‧First housing
40B‧‧‧Second housing
41‧‧‧ Holding Department
50‧‧‧First button
51‧‧‧Second button
60‧‧‧Power cord

1 is a perspective view of a housing according to an embodiment of the present invention; FIG. 2 is an exploded perspective view of an embodiment of the present invention; FIG. 3 is a front view of an embodiment of the present invention; 5 is a cross-sectional view of a key activation position of an embodiment of the present invention; FIG. 6 is an overall cross-sectional view of an embodiment of the present invention; and FIG. 7 is an exploded perspective view of another embodiment of the present invention; A partial combination diagram of another embodiment of the invention; FIG. 9 is a complete external view of an embodiment of the invention.

10‧‧‧First metal coil spring

11‧‧‧Second metal coil spring

20‧‧‧Insert substrate

30‧‧‧Metal parts

40‧‧‧shell

40A‧‧‧First housing

40B‧‧‧Second housing

50‧‧‧First button

51‧‧‧Second button

Claims (6)

The switch structure of an electronic surgical device includes: an insulating substrate comprising a first surface, a second surface and at least one through hole, wherein the second surface is opposite to the first surface, the at least one through hole communicates with the first surface The second surface, the insulating substrate comprises a fixing seat at one end of the insulating substrate protruding from the first surface; a metal member disposed on the second surface; at least one metal coil spring disposed on the first surface The surface of the at least one through hole includes a first end and a second end, wherein the second end has a larger diameter than the at least one through hole, and the first end has a smaller diameter than the at least one through hole When the external force is applied to the first end, the first end is electrically connected to the metal member; and a wire is disposed on the first surface, one end of the wire is connected to the second end of the metal coil spring, and One end is fixed to the fixing seat. The switch structure of the electronic surgical device of claim 1, further comprising a casing covering the insulating substrate, the metal member and the at least one metal coil spring. The switch structure of an electronic surgical device includes: an insulating substrate comprising a first surface, a second surface and at least one through hole, the second surface is opposite to the first surface, the at least one through hole communicating with the first surface And the second surface; a metal member disposed on the second surface; at least one metal coil spring disposed on the first surface and located in the at least one through hole, including a first end and a second end, the second The diameter of the end is greater than the diameter of the at least one through hole, and the diameter of the first end is smaller than the diameter of the at least one through hole, when an external force is applied to the first end, The first end is electrically connected to the metal member; a casing encasing the insulating substrate, the metal member and the at least one metal coil spring, the casing comprising at least one fixing seat protruding from the inner surface of the casing And a wire disposed on the first surface, one end of the wire is connected to the second end of the metal coil spring, and the other end is fixed to the fixing seat. The switch structure of the electronic surgical device according to any one of claims 1 to 3, wherein the wire has a hook portion located at the other end of the wire and hooked to the fixing seat. The switch structure of the electronic surgical device of any one of claims 2 to 3, further comprising at least one button corresponding to the first end of the at least one metal coil spring, the at least one button being movable to a a starting position and a closing position, when the at least one button is in the starting position, the first end is electrically connected to the metal member by pressing the at least one button, and when the at least one button is in the closed position, the The first end is disconnected from the metal piece. The switch structure of the electronic surgical device according to claim 5, wherein the wire has a hook portion located at the other end of the wire and hooked to the fixing seat.