Foot switch

Abstract

The utility model provides a foot switch, and belongs to the technical field of medical instruments. And two pedal buttons and three pedals are arranged, so that the device can be matched with surgical equipment with various output modes for use. Due to the design of the two pedal buttons, switching of energy output modes can be achieved; the three pedals can respectively control on and off of a circuit, and the linear switch can realize linear control of output. And the three pedals adopt different colors, so that a user can quickly and timely identify and use a proper pedal. And the bosses are arranged between the pedals, so that a user can be prevented from treading and sliding or treading the two switches at the same time, and misoperation is avoided. According to the foot switch provided by the invention, switching of multiple modes and circuit control under single-mode operation can be completed conveniently and efficiently, and the operation is simple and very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a foot switch. Background Art

[0002] Medical foot switch is a switch that switches the circuit on and off by stepping on it. It is an accessory for medical devices such as treatment equipment and inspection equipment. The foot switch can free the hands of hospital staff and meet the operation requirements of a sterile environment. The foot switch is a common device in the field of medical devices.

[0003] With the integrated development of medical devices, products that can output multiple energy modes from a host device have become an urgent need in the industry. Since the host device can output multiple energies, the use involves switching and controlling different energy modes. For example, the applicant has developed a multi-mode surgical device with four output modes. It is necessary to realize the switching of different output modes, and to control the start and stop of the four modes of output. One of the modes also requires linear control of the output energy.

[0004] Existing foot switches often have only one pedal, which is difficult to meet the needs of multi-mode surgical equipment. In the prior art, there are situations where multi-mode surgical equipment is controlled by manual adjustment and using a single-pedal foot switch. This design requires manual adjustment by a dedicated person, resulting in a waste of manpower, because doctors will hardly touch the host device with their hands in order to avoid causing infection to the patient's affected area. In the prior art, there are also situations where one pedal is used to control multiple mode switching and circuit control under single mode operation through software development and programming, but due to the complex design, there are also problems in actual use, such as complex operation, reduced efficiency, and easy misoperation causing medical accidents. Utility Model Content

[0005] In view of this, the present application provides a foot switch, aiming to solve the problem in the prior art that the foot switch cannot conveniently and efficiently complete multiple mode switching and circuit control under single mode operation.

[0006] This application is implemented as follows:

[0007] A foot switch comprises a base, two foot buttons and three pedals, wherein the foot buttons and the pedals are respectively connected to the base. The foot buttons comprise an energy switching button and a steering switching button, and the pedals comprise a low-frequency pedal, a high-frequency pedal and a linear pedal.

[0008] Preferably, the three pedals have different colors.

[0009] Preferably, the pedal is provided with anti-slip patterns.

[0010] Preferably, the base includes a boss, the boss is arranged between the pedals, and the height of the boss is not lower than the height of the pedals.

[0011] Preferably, the foot button comprises a button cap, a selection switch and a first spring, wherein the button cap is movably disposed on the base and can be moved closer to or farther away from the selection switch, and the first spring causes the button cap to tend to move away from the selection switch.

[0012] Preferably, the low-frequency pedal includes a first pedal and a first switch, the first pedal is rotatably connected to the base, the first switch is arranged between the first pedal and the base, the first switch is turned on when an external force is applied, and the first switch is turned off when there is no external force.

[0013] Preferably, the linear pedal comprises a linear switch and a second pedal, the second pedal is rotatably connected to the base, and the linear switch is arranged between the second pedal and the base.

[0014] Preferably, the foot pedal button further includes a connecting plate and a sealing cover, the connecting plate is connected to the base, and the sealing cover is respectively connected to the connecting plate and the button cap.

[0015] The foot switch provided in the present application has two foot buttons and three pedals, and can be used with surgical equipment with multiple output modes. The design of the two foot buttons can realize the switching of energy output modes; the three pedals can respectively control the closing and opening of the circuit, and the linear switch can realize linear control of the output. The three pedals are of different colors, which is convenient for users to quickly and timely identify and use the appropriate pedal. There are bosses between the pedals to prevent users from stepping on and sliding or stepping on two switches at the same time to avoid misoperation. The foot switch provided in the present application can conveniently and efficiently complete the switching of multiple modes and the circuit control under a single mode operation, and the operation is simple and very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. As shown in the drawings, the above and other purposes, features and advantages of the present application will be clearer. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately scaled to the actual size, and the focus is on showing the main purpose of the present application.

[0017] Figure 1 is a schematic diagram of the structure of a foot switch provided in an embodiment of the present application;

[0018] Figure 2 is another structural schematic diagram of the foot switch provided in an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of the structure of a foot button of a foot switch provided in an embodiment of the present application;

[0020] Figure 4 It is a structural schematic diagram of a low-frequency pedal or a high-frequency pedal of a foot switch provided in an embodiment of the present application;

[0021] Figure 5 It is a schematic diagram of the structure of the linear pedal of the foot switch provided in an embodiment of the present application.

[0022] Summary of reference numerals:

[0023] 10. Foot switch; 11. Base; 12. Foot button; 13. Pedal; 111. Boss; 121. Button cap; 122. First spring; 123. Sealing cover; 124. Selector switch; 125. Connecting plate; 131. Anti-skid pattern; 13A. Low-frequency pedal; 13B. High-frequency pedal; 13C. Linear pedal; 21. First pedal; 22. First support; 23. First switch; 24. Second spring; 231. Switch ball head; 232. Switch reed; 31. Second pedal; 32. Second support; 33. Linear switch; 34. Third spring; 331. Magnetic part; 332. Hall sensor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0028] In order to meet the market demand for multi-mode surgical equipment, the applicant has developed a multi-mode surgical device with four usage modes and outputs three types of energy and power. The three energies are radio frequency energy, plasma energy, and electrosurgical energy. All three energies are generated by electrical excitation. According to the needs of use, the multi-mode surgical device presets two options: high frequency and low frequency. The appropriate frequency can be selected during the surgical operation, so the control of energy mainly lies in switching the energy mode, and controlling the start and stop of the energy output after selecting the frequency. Power is the use of electrical energy to drive the motor to rotate and output rotational force. It requires both start and stop control and switching of the rotation direction to meet the needs of surgical operations.

[0029] See also Figure 1-Figure 5 As shown, the foot switch 10 provided in this embodiment can meet the needs of the aforementioned multi-mode surgical device and realize the switching and control of four output modes. The foot switch 10 includes a base 11, two foot buttons 12 and three pedals 13. The two foot buttons 12 and the three pedals 13 are all installed on the base 11, which can be fixedly connected or connected in a detachable manner such as screw connection, preferably screw connection. The advantage of screw connection is that if the foot button 12 or the pedal 13 fails or is damaged, the accessories can be replaced without eliminating the entire foot switch 10.

[0030] The two foot pedals 12 are respectively an energy switching button and a steering switching button, and the three pedals 13 are respectively a low-frequency pedal 13A, a high-frequency pedal 13B and a linear pedal 13C. The energy switching button is used to control the switching of RF energy, plasma energy and electrosurgical energy output, and the low-frequency pedal 13A and the high-frequency pedal 13B are used to control the start and stop of energy output. The steering switching button is used to control the direction of the rotational force of the power output, specifically there are three modes of forward, reverse and reciprocating, and the linear pedal 13C is used to control the start and stop of the power output, and linearly control the size of the output power.

[0031] The colors of the low-frequency pedal 13A, the high-frequency pedal 13B, and the linear pedal 13C are obviously different, and the colors of the three pedals 13 and the base 11 are also different, so that the user can intuitively and quickly identify and distinguish the pedals 13. In this embodiment, the low-frequency pedal 13A is set to yellow; the high-frequency pedal 13B is set to blue; the linear pedal 13C is set to gray, and the base 11 is set to white.

[0032] The three pedals 13 are all provided with anti-skid patterns 131, which can increase the friction of the pedals 13. The anti-skid patterns 131 provided in this embodiment are specifically three curved grooves.

[0033] The low-frequency pedal 13A and the high-frequency pedal 13B are arranged adjacent to each other, and a linear pedal 13C is arranged next to the two; an energy switching button for controlling energy switching is arranged above the low-frequency pedal 13A or the high-frequency pedal 13B, and a steering switching button for controlling steering switching is arranged above the linear pedal 13C, which meets the needs of ergonomics. In this embodiment, specifically: the linear pedal 13C is located at the rightmost side of the base 11, and a steering switching button is designed above it; the low-frequency pedal 13A is located at the leftmost side of the base 11, and an energy switching button is designed above it; and the high-frequency pedal 13B is located in the middle of the base 11.

[0034] The base 11 includes a boss 111, which is located between the three pedals 13. The height of the boss 111 is equal to or higher than the height of the pedal 13. In this embodiment, the boss 111 is preferably at the same height as the pedal 13. The boss 111 can effectively isolate the three pedals 13, so that the user cannot step on multiple pedals 13 at the same time with one foot, or cannot slide onto another pedal 13 when stepping on one pedal 13, effectively preventing the occurrence of accidental stepping and avoiding medical accidents.

[0035] The pedal button 12 includes a button cap 121, a first spring 122, a sealing cover 123, a selection switch 124 and a connecting plate 125. The pedal button 12 is screwed to the base 11 through the connecting plate 125. Specifically, a hole is opened on the base 11, and the shape of the hole is adapted to the button cap 121, so that the button cap 121 passes through and protrudes from the base 11. A through hole (not shown in the figure) is provided on the connecting plate 125, and a screw passes through the through hole to fix the connecting plate 125 to the base 11. The selection switch 124 and the connecting plate 125 are fixedly connected and arranged directly below the button cap 121, and a first spring 122 is provided between the selection switch 124 and the button cap 121. The first spring 122 has a tendency to move upward, so that the button cap 121 and the selection switch 124 do not contact each other without external force; when an external force is applied, the first spring 122 is compressed so that the button cap 121 and the selection switch 124 abut against each other. A sealing cover 123 is provided between the button cap 121 and the connecting plate 125. The sealing cover 123 can be made of a flexible material such as rubber or silicone and has a cylindrical, multi-prism or quasi-cylindrical shape. The sealing cover 123 wraps the selection switch 124 to avoid contact with the outside and is waterproof and dustproof. The connection between the sealing cover 123 and the button cap 121 and the connection between the sealing cover 123 and the connecting plate 125 can be a fixed connection or a screw connection, as long as the seal is tight and there is no gap between the sealing cover 123 and the button cap 121 or the connecting plate 125. The structure of the selection switch 124 is not described here in detail, and can refer to the existing design.

[0036] The low-frequency pedal 13A and the high-frequency pedal 13B have the same structural design, including a first pedal 21, a first support 22, a first switch 23 and a second spring 24. A rotating shaft is provided in the first support 22, one end of the first pedal 21 is rotatably connected to the base 11 through the first support 22, and the other end is fixedly connected to the second spring 24. The second spring 24 is fixed between the first pedal 21 and the base 11, and has a tendency to move upward, so that the first pedal 21 is away from the base 11. The first switch 23 is provided between the base 11 and the first pedal 21, and includes a switch ball head 231 and a switch reed 232. The switch ball head 231 is fixed on the base 11, and the switch reed 232 is clamped in the first pedal 21. After applying external force to step on the low-frequency pedal 13A or the high-frequency pedal 13B, the second spring 24 is compressed, and the first pedal 21 rotates downward with the support shaft as the center, so that the switch reed 232 stuck in the first pedal 21 is displaced and contacts the switch ball head 231, the switch is turned on, and the circuit is turned on. After the external force is stopped, the second spring 24 stretches and drives the first pedal 21 to rotate upward, the switch reed 232 is disconnected from the switch ball head 231, and the circuit is open.

[0037] The linear pedal 13C includes a second pedal 31, a second support 32, a linear switch 33 and a third spring 34. Similar to the low-frequency pedal 13A and the high-frequency pedal 13B, the second pedal 31 is rotatably connected to the base 11 through the second support 32, and the third spring 34 is fixedly connected between the second pedal 31 and the base 11, specifically at the other end away from the second support 32. The third spring 34 also has a tendency to move upward, so that the second pedal 31 is away from the base 11. The linear switch 33 includes a magnetic member 331 and a Hall sensor 332. The magnetic member 331 is fixedly connected to the second pedal 31, specifically at one end of the second pedal 31 close to the spring; the Hall sensor 332 is arranged on the base 11, specifically at a position close to the spring. The magnetic member 331 is preferably a magnet. After applying external force to step on the linear pedal 13C13, the third spring 34 is compressed, and the second pedal 31 moves downward with the second support 32 as the center, so that the magnetic part 331 approaches the Hall sensor 332 or abuts against the Hall sensor 332, and the circuit is closed and connected. After the external force is removed, the third spring 34 stretches and drives the second pedal 31 to rotate upward, returning to the original position and the circuit is open. The linear switch 33 composed of the Hall sensor 332 and the magnetic part 331 can realize linear control of the circuit as the distance between the Hall sensor 332 and the magnetic part 331 increases. The closer the distance is, the higher the output is. The technology of the linear switch 33 can refer to the prior art and will not be repeated here.

[0038] The foot switch 10 provided in the present application is used as follows: the foot switch 10 is electrically connected to the multi-mode surgical device. When a certain low-frequency energy is needed, the energy switching button is stepped on to select the corresponding energy mode, and then the low-frequency pedal 13A is stepped on, the switch is turned on, the circuit is connected, and the multi-mode surgical device starts to output the selected low-frequency energy; when the low-frequency pedal 13A is released, the switch is cut off, the circuit is open, and the multi-mode surgical device cannot output low-frequency energy. When power is needed, the steering switch button is stepped on with the foot to select the appropriate direction of the steering force. The doctor can output power by stepping on the linear pedal 13C according to the required power. The deeper the linear pedal 13C is stepped on, the greater the power. When the linear pedal 13C is released, the power output stops.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foot switch, It is characterized in that It includes a base, two foot buttons and three pedals, wherein the foot button and the pedals are respectively connected to the base; the foot button includes an energy switching button and a steering switching button, and the pedals include a low-frequency pedal, a high-frequency pedal and a linear pedal; the foot button includes a button cap, a selection switch and a first spring, wherein the button cap is movably arranged on the base and can approach or move away from the selection switch, and the first spring makes the button cap tend to move away from the selection switch; the foot button also includes a connecting plate and a sealing cover, wherein the connecting plate is connected to the base, and the sealing cover is respectively connected to the connecting plate and the button cap.

2. The foot switch according to claim 1, It is characterized in that The three pedals are of different colors.

3. The foot switch according to claim 1, It is characterized in that The pedal is provided with anti-skid patterns.

4. The foot switch according to claim 1, It is characterized in that The base includes a boss, which is arranged between the pedals, and the height of the boss is not lower than the height of the pedals.

5. The foot switch according to claim 1, It is characterized in that The low-frequency pedal includes a first pedal and a first switch. The first pedal is rotatably connected to the base. The first switch is arranged between the first pedal and the base. The first switch is turned on when an external force is applied, and is turned off when no external force is applied.

6. The foot switch according to claim 1, It is characterized in that The linear pedal comprises a linear switch and a second pedal, wherein the second pedal is rotatably connected to the base, and the linear switch is arranged between the second pedal and the base.

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