CN111938759B - Ultrasonic surgical instrument with simultaneously depressible blade buttons - Google Patents
Ultrasonic surgical instrument with simultaneously depressible blade buttons Download PDFInfo
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- CN111938759B CN111938759B CN202010923283.2A CN202010923283A CN111938759B CN 111938759 B CN111938759 B CN 111938759B CN 202010923283 A CN202010923283 A CN 202010923283A CN 111938759 B CN111938759 B CN 111938759B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
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Abstract
The invention provides an ultrasonic surgical instrument with a tool bit button capable of being pressed simultaneously, which comprises a main machine of the ultrasonic surgical instrument, a tool bit, a first switch, a second switch, a third switch and a fourth switch, wherein the main machine of the ultrasonic surgical instrument comprises a first signal end, a first grounding end, a voltage transformer and a signal detection circuit, the tool bit comprises a second signal end and a second grounding end, the second signal end and the first signal end are connected with each other through the voltage transformer to induce voltage signals, the second grounding end and the first grounding end are connected, the first switch is provided with a first connection state and a second connection state, the second switch is provided with a third connection state and a fourth connection state, the second signal circuit is conducted when the first switch is in the second connection state and the second switch is in the fourth connection state, the second signal end generates the third signal, and the first signal end senses the third signal and transmits the third signal to the signal detection circuit. When both switches are turned on simultaneously, the low power gear is operated.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an ultrasonic surgical instrument with a tool bit button capable of being pressed simultaneously.
Background
The invention relates to the field of medical instrument energy surgery, in particular to an ultrasonic surgical cutting instrument, which is hereinafter referred to as an ultrasonic knife. The main function of the ultrasonic knife is to realize soft tissue cutting and minimum thermal damage at the same time, as shown in fig. 1, and the ultrasonic knife is composed of various systems of the ultrasonic knife in the prior art, including an action head, a knife head, a transduction handle and a power supply host.
The existing ultrasonic knife mainly realizes the following technology:
There are several different gears, each representing a different power level, which can be selected to operate at a high power level and an adjustable power level by two manual buttons on the cutter head;
With the popularization of ultrasonic blade technology, existing ultrasonic blades have exposed the following disadvantages:
The knife head is provided with an upper button and a lower button, the upper button is the highest working gear for cutting tissues, the lower button is an adjustable working gear, and the lower button can be used for stopping bleeding. When an operator uses the ultrasonic knife for cutting, due to the limited space on the knife head, the two control buttons on the knife head are relatively close, and the two control buttons on the knife head can be simultaneously pressed by misoperation. In the prior art, two schemes exist, one scheme is that after two control buttons are pressed simultaneously, the tool bit can stop working, and the other scheme is that when two control buttons are pressed by misoperation, only one button, namely a button similar to a seesaw structure, is pressed, but the pressed button is not necessarily the button which a doctor needs to press. For both prior art solutions, one of the two control button heads is pressed simultaneously to stop working, which wastes operation time, and the other button is pressed only but not necessarily, which may lead to the risk that the operator wants to close the vessel, but works in a high gear, which results in that the vessel cannot be closed and bleeding occurs.
The technical problem in the prior art is that the existing ultrasonic blade system has no solution for safety and time saving when two buttons are pressed simultaneously.
Disclosure of Invention
The invention provides an ultrasonic surgical instrument with a tool bit button capable of being pressed simultaneously, which at least solves the technical problem that operation risks are caused by the fact that two buttons cannot be pressed simultaneously in the prior art.
The present invention provides an ultrasonic surgical instrument having a simultaneously depressible bit button comprising:
the main machine of the ultrasonic surgical instrument comprises a first signal end, a first grounding end, a voltage transformer and a signal detection circuit;
the cutter head comprises a second signal end and a second grounding end, the second signal end and the first signal end induce voltage signals through a voltage transformer, and the second grounding end is connected with the first grounding end;
A first switch having a first connection state and a second connection state;
A second switch having a third connection state and a fourth connection state;
when the first switch is in the first connection state and the second switch is in the third connection state, the first signal terminal outputs a first signal, and the second signal terminal senses the first signal and transmits the first signal to a signal detection circuit;
When the first switch is in the first connection state and the second switch is in the fourth connection state, the first signal line is turned on, the second signal terminal generates a second signal, and the first signal terminal senses the second signal and transmits the second signal to the signal detection line;
When the first switch is in the second connection state and the second switch is in the third connection state, the second signal line is turned on, the second signal terminal generates a third signal, the first signal terminal senses the third signal, and the third signal is transmitted to the signal detection line;
When the first switch is in the second connection state and the second switch is in the fourth connection state, the second signal line is turned on, the second signal terminal generates the third signal, and the first signal terminal senses the third signal and transmits the third signal to the signal detection line.
Optionally, the second signal end and the first signal end induce voltage signals in a mutual ratio of 1:1 through a voltage transformer.
Optionally, the second signal end is a signal input/output port, the second ground end is a ground end, and a dual diode is connected between the signal input/output port and the ground end;
when the first switch is in the first connection state and the second switch is in the third connection state, the first signal terminal outputs a first signal, the second signal terminal senses the first signal and transmits the first signal to a signal detection circuit, and the two diodes are in the off state;
When the first switch is in the first connection state and the second switch is in the fourth connection state, a first signal line is turned on, the second signal terminal generates a second signal, the first signal terminal senses the second signal and transmits the second signal to a signal detection line, and the dual diode is turned on in the first signal line;
When the first switch is in the second connection state and the second switch is in the third connection state, a second signal line is turned on, a third signal is generated at the second signal terminal, the first signal terminal senses the third signal, the third signal is transmitted to a signal detection line, and the dual diode is turned on in the second signal line;
When the first switch is in the second connection state and the second switch is in the fourth connection state, the second signal line is turned on, the second signal terminal generates the third signal, the first signal terminal senses the third signal, and the third signal is transmitted to the signal detection line, and the two diodes are turned on in the second signal line.
Optionally, the first switch is a single pole double throw switch, the single pole double throw switch includes a movable contact, a low power stationary contact and a high power stationary contact, the first connection state is a connection state of the movable contact and the high power stationary contact, and the second connection state is a connection state of the movable contact and the low power stationary contact.
Optionally, the second switch is a switch, the third connection state is the switch off state, and the fourth connection state is the switch on state.
Optionally, the low-power stationary contact is connected in series with the dual diodes that are turned on in the second signal line;
The high-power stationary contact is connected in series with the two diodes that are turned on in the first signal line, and the high-power stationary contact is connected in series with the switch at the same time.
Optionally, the ultrasonic surgical instrument further comprises a button printed circuit board, an inner conductive ring, an outer conductive ring, and a conductive ring holder, wherein the inner conductive ring and the outer conductive ring are fixed on the conductive ring holder, the button printed circuit board is welded to the inner conductive ring and the outer conductive ring, the signal input/output port and the ground terminal are located on the button printed circuit board, the signal input/output port is welded to the inner conductive ring, and the ground terminal is welded to the outer conductive ring.
Optionally, the ultrasonic surgical instrument further includes a transduction handle, after the cutter head is connected with the transduction handle, the inner conductive ring corresponds to a signal output end of the host through the voltage transformer of the host, the signal output end of the host is provided with a signal detection circuit, and a signal output by the signal output end of the host senses a voltage signal 1:1 to the signal input/output port through the voltage transformer of the host.
Alternatively, the second switch is turned on to operate in a high gear, the first switch is turned on to operate in a low gear, and the second switch and the first switch are turned on at the same time to operate in a low gear.
Alternatively, the first switch and the second switch in the tool bit button of the ultrasonic surgical instrument may be turned on simultaneously.
Aiming at the defects in the prior art, the invention provides an ultrasonic surgical instrument with a tool bit button capable of being pressed simultaneously, wherein the tool bit button is internally provided with a button which can control the tool bit to excite the work, and when two switches of the tool bit are pressed simultaneously, the tool bit can work in a low-power gear.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
FIG. 1 is a schematic diagram of the system components of an alternative prior art ultrasonic blade according to an embodiment of the present invention;
FIG. 2 is a schematic view of an alternative internal structure of a tool bit according to an embodiment of the invention;
FIG. 3-1 is a schematic view of a partially enlarged internal structure of a tool bit of an alternative card slot embodying a button printed circuit board pcb according to an embodiment of the present invention;
Fig. 3-2 is a schematic view of a partially enlarged internal structure of a tool bit, which optionally embodies a button stop according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an alternative button printed circuit board (pcb) including two spring plates according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of an alternative button printed circuit board (pcb) according to an embodiment of the present invention.
Reference numerals:
The novel electric power tool comprises an upper button MAX, a lower button MIN, a button printed circuit board pcb, a single-pole double-throw switch S1, a switch S2, a double Diode A and Diode B, a signal input output port IO, a grounding end Com, a movable contact 1, a low-power fixed contact 2, a high-power fixed contact 3, an upper button elastic sheet 4, a lower button elastic sheet 5, an inner conductive ring 6, an outer conductive ring 7, a conductive ring fixing seat 8 and a tool bit shell 9, wherein the upper button fixing column MAX1, the lower button fixing column MIN1, an upper button limit MAX2, an upper button limit MAX3, a lower button limit MIN2, a lower button limit MIN3 and clamping grooves 91 and 92 of the button printed circuit board pcb.
Detailed Description
The principles and spirit of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are presented merely to enable those skilled in the art to better understand and practice the application and are not intended to limit the scope of the application in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
This embodiment is shown in fig. 2 to 5.
Embodiments of the present invention provide an ultrasonic surgical instrument having a simultaneously depressible bit button comprising:
the main machine of the ultrasonic surgical instrument comprises a first signal end, a first grounding end, a voltage transformer and a signal detection circuit;
the cutter head comprises a second signal end and a second grounding end, the second signal end and the first signal end induce voltage signals through a voltage transformer, and the second grounding end is connected with the first grounding end;
A first switch having a first connection state and a second connection state;
A second switch having a third connection state and a fourth connection state;
when the first switch is in the first connection state and the second switch is in the third connection state, the first signal terminal outputs a first signal, and the second signal terminal senses the first signal and transmits the first signal to a signal detection circuit;
When the first switch is in the first connection state and the second switch is in the fourth connection state, the first signal line is turned on, the second signal terminal generates a second signal, and the first signal terminal senses the second signal and transmits the second signal to the signal detection line;
When the first switch is in the second connection state and the second switch is in the third connection state, the second signal line is turned on, the second signal terminal generates a third signal, the first signal terminal senses the third signal, and the third signal is transmitted to the signal detection line;
When the first switch is in the second connection state and the second switch is in the fourth connection state, the second signal line is turned on, the second signal terminal generates the third signal, and the first signal terminal senses the third signal and transmits the third signal to the signal detection line.
Further, the second signal end and the first signal end induce voltage signals in a mutual proportion of 1:1 through a voltage transformer.
Further, the second signal terminal is a signal input/output port IO, the second ground terminal is a ground terminal Com, and a dual Diode-a/Diode-B is connected between the signal input/output port IO and the ground terminal Com;
when the first switch is in the first connection state and the second switch is in the third connection state, the first signal terminal outputs a first signal, the second signal terminal senses the first signal and transmits the first signal to a signal detection circuit, and the two Diode-a/Diode-B are in an off state;
when the first switch is in the first connection state and the second switch is in the fourth connection state, a first signal line is turned on, the second signal terminal generates a second signal, the first signal terminal senses the second signal and transmits the second signal to a signal detection line, and the two Diode-B is turned on in the first signal line;
when the first switch is in the second connection state and the second switch is in the third connection state, a second signal line is turned on, a third signal is generated at the second signal terminal, the first signal terminal senses the third signal and transmits the third signal to a signal detection line, and the two-Diode-a is turned on in the second signal line;
When the first switch is in the second connection state and the second switch is in the fourth connection state, the second signal line is turned on, the second signal terminal generates the third signal, the first signal terminal senses the third signal, and the third signal is transmitted to the signal detection line, and the two-Diode-a is turned on in the second signal line.
Further, the first switch is a single pole double throw switch S1, the single pole double throw switch S1 includes a movable contact 1, a low power stationary contact 2, and a high power stationary contact 3, the first connection state is a state in which the movable contact 1 is connected to the high power stationary contact 3, and the second connection state is a state in which the movable contact 1 is connected to the low power stationary contact 2.
Further, the second switch is a switch S2, the third connection state is an off state of the switch S2, and the fourth connection state is an on state of the switch S2.
Further, the low power stationary contact 2 is connected in series with the double diodes that are turned on in the second signal line;
The high power stationary contact 3 is connected in series with the two diodes that are turned on in the first signal line, and the high power stationary contact 3 is connected in series with the switch S2 at the same time.
The second switch is turned on to operate in a high gear, the first switch is turned on to operate in a low gear, and the second switch and the first switch are turned on at the same time to operate in a low gear.
The first switch and the second switch in the tool bit button of the ultrasonic surgical instrument may be simultaneously turned on.
More specifically, the tool bit button of the ultrasonic surgical instrument includes an upper button MAX, a lower button MIN, and a button printed circuit board pcb, the button printed circuit board pcb includes a single pole double throw switch S1, a switch S2, and two diodes (Diode-a and Diode-B), the switch S2 corresponds to the upper button MAX, the single pole double throw switch S1 includes two connection ports, one of the connection ports corresponds to the lower button MIN, the other connection port is connected in series with the switch S2 corresponding to the upper button MAX, the switch S2 corresponding to the upper button MAX is connected in series with the Diode-B of the two diodes, and one of the connection ports corresponding to the lower button MIN is connected in series with the Diode-a of the two diodes.
Further, the two connection ports of the single-pole double-throw switch S1 are a low-power fixed contact 2 and a high-power fixed contact 3, the single-pole double-throw switch S1 further includes a movable contact 1, the low-power fixed contact 2 is connected in series with a Diode-a in the double-Diode, and the high-power fixed contact 3 is connected in series with the switch S2 corresponding to the upper button MAX and is also connected in series with a Diode-B in the double-Diode.
Further, in a normal state, the movable contact 1 of the single-pole double-throw switch S1 is always connected to the high-power stationary contact 3, the button printed circuit board pcb further includes an upper button spring 4 and a lower button spring 5, the upper button spring 4 and the lower button spring 5 are respectively fixed to the switch S2 and the single-pole double-throw switch S1 on the button printed circuit board pcb, the upper button spring 4 corresponds to the upper button MAX, and the lower button spring 5 corresponds to the lower button MIN.
Further, when the upper button MAX is pressed, the corresponding upper button elastic piece 4 is also pressed at the same time, so that the switch S2 corresponding to the upper button MAX is in a closed and conductive state, the movable contact 1 of the single pole double throw switch S1 is conducted with the high power stationary contact 3, one end of the Diode-B of the double diodes close to the ground terminal Com is a Diode anode, the other end is a Diode cathode, the ground terminal Com is at 0 potential, the signal input/output port IO is at low potential (0-), and the signal input/output port IO transmits an operation signal of the highest power level at this time.
Further, when the upper button MAX is not pressed but only the lower button MIN is pressed, the movable contact 1 of the single-pole double-throw switch S1 is disconnected from the high-power stationary contact 3 and is connected to the low-power stationary contact 2, one end of the Diode-a near the ground terminal Com is a Diode cathode, the other end is a Diode anode, the ground terminal Com is at 0 potential, the signal input/output port IO is at high potential, and the Diode-a in the double diodes in the series is activated to operate, and at this time, the signal input/output port IO transmits an operating signal with an adjustable power level.
Further, when the upper button MAX and the lower button MIN are simultaneously pressed, the upper button spring 4 and the lower button spring 5 are also simultaneously pressed, the switch S2 is in a closed and conductive state, the movable contact 1 of the single-pole double-throw switch S1 is disconnected from the high-power stationary contact 3 and is conducted with the low-power stationary contact 2, one end of the Diode-a close to the ground terminal Com is a Diode cathode, the other end is a Diode anode, the ground terminal Com is at 0 potential, the signal input/output port IO is at high potential, and the Diode-a in the double-Diode in series is enabled to operate, and at this time, the signal input/output port IO transmits an operating signal of an adjustable power level.
Further, the ultrasonic surgical instrument further comprises an inner conductive ring 6, an outer conductive ring 7, and a conductive ring holder 8, wherein the inner conductive ring 6 and the outer conductive ring 7 are fixed on the conductive ring holder 8, the button printed circuit board pcb is soldered to the inner conductive ring 6 and the outer conductive ring 7, wherein the signal input/output port IO of the button printed circuit board pcb is soldered to the inner conductive ring 6, and the ground terminal Com of the button printed circuit board pcb is soldered to the outer conductive ring 7.
Further, the ultrasonic surgical instrument further includes a transduction handle and a main unit, after the cutter head is connected with the transduction handle, the inner conductive ring 6 corresponds to a signal output end of the main unit through a voltage transformer of the main unit, a signal detection circuit is arranged at the signal output end of the main unit, a signal output by the signal output end of the main unit is induced to the signal input/output port IO through the voltage transformer of the main unit by a voltage signal 1:1, the signal of the signal input/output port IO can also induce the voltage signal 1:1 to the signal output end of the main unit, the signal of the signal input/output port IO can be transmitted to the signal detection circuit of the main unit, the outer conductive ring 7 corresponds to a grounding end of the main unit, when the upper button spring 4 and the lower button spring 5 are pressed simultaneously, a high gear output signal circuit is driven to stop working, a gear-a in the double-Diode is driven to start working, the gear-a gear-B in the double-Diode is driven to work, and the signal is transmitted to the main unit by the low gear output parameter.
Further, the upper button MAX is pressed to operate in a high gear, the lower button MIN is pressed to operate in a low gear, and the upper button MAX and the lower button MIN are simultaneously pressed to operate in a low gear.
Further, the upper button MAX and the lower button MIN of the head buttons of the ultrasonic surgical instrument may be simultaneously pressed.
The cutter head is provided with two control buttons, namely an upper button MAX and a lower button MIN, wherein the upper button MAX controls the excitation work of a high gear, the lower button MIN controls the excitation work of a low gear, and when the upper button and the lower button are simultaneously pressed down, the excitation work is carried out in the low gear.
As shown in fig. 2, the tool bit includes an upper button MAX, a lower button MIN, a button printed circuit board pcb, an inner conductive ring 6, an outer conductive ring 7, a conductive ring holder 8, and a tool bit housing 9.
As shown in fig. 3-1 and 3-2, the cutter head housing 9 is provided with mounting posts for an upper button MAX and a lower button MIN, that is, an upper button MAX1 and a lower button MIN1, and the upper button MAX and the lower button MIN are mounted on the upper button MAX1 and the lower button MIN1 of the cutter head housing 9, and the upper button MAX can perform a rotational movement along with the upper button MAX1, and the lower button MIN can perform a rotational movement along with the lower button MIN 1. Meanwhile, the cutter head shell 9 is also provided with limit designs of an upper button MAX and a lower button MIN, namely, the limit designs of the upper button MAX are respectively an upper button limit MAX2 and an upper button limit MAX3, the limit designs of the lower button MIN are respectively a lower button limit MIN2 and a lower button limit MIN3, and are used for limiting the rotation angles of the upper button MAX and the lower button MIN so as to match the upper button elastic sheet 4 and the lower button elastic sheet 5 on the button printed circuit board pcb to form the pressing strokes of the upper button MAX and the lower button MIN, the cutter head shell 9 is also provided with clamping grooves 91 and 92 of the button printed circuit board pcb, the button printed circuit board pcb can be fixed on the cutter head shell 9, and the final states of the clamping grooves 91 and 92 of the button printed circuit board pcb are shown in a figure 4, so that the button printed circuit board pcb is prevented from being displaced.
As shown in fig. 4 below, two elastic pieces are provided on the button pcb, namely, the upper button elastic piece 4 and the lower button elastic piece 5, and a surface of the button pcb having the elastic pieces faces the direction of the upper button MAX and the lower button MIN, and positions of the upper button elastic piece 4 and the lower button elastic piece 5 correspond to the upper button MAX and the lower button MIN, respectively, and when the upper and lower buttons are pressed, the corresponding upper button elastic piece 4 and lower button elastic piece 5 are pressed downward. The inner conductive ring 6 and the outer conductive ring 7 are fixed on the conductive ring fixing seat 8, the other side (non-spring side) of the button printed circuit board pcb is welded to the inner conductive ring 6 and the outer conductive ring 7, the signal input/output port IO is welded to the inner conductive ring, and the ground terminal Com is welded to the outer conductive ring. After the cutter head is connected with the transduction handle, the inner conductive ring 6 and the outer conductive ring 7 are respectively connected with a signal wire and a grounding wire of the transduction handle, the signal wire of the transduction handle is connected with a signal output end of the host, the grounding wire of the transduction handle is connected with a grounding end of the host, namely, the inner conductive ring 6 of the cutter head corresponds to the signal output end of the host, and the outer conductive ring 7 of the cutter head corresponds to the grounding end of the host.
As shown in fig. 5, which is a schematic circuit diagram of a button pcb, in the schematic circuit diagram, a single-pole double-throw switch S1 is a lower button shrapnel 5 on the button pcb, that is, a shrapnel corresponding to a lower button MIN, and a switch S2 is an upper button shrapnel 4 on the button pcb, that is, a shrapnel corresponding to an upper button MAX. IO in the schematic diagram is a signal input/output port IO, and Com is a ground terminal Com. After the cutter head is connected with the transduction handle and the host, namely, a signal input/output port IO of the cutter head is connected to a signal output end of the host, and a grounding end Com of the cutter head is connected to a grounding end of the host. The line with the switch S2 is a high-gear output signal line, and the other line is a low-gear output signal line.
In fig. 5S 1 represents the above-mentioned down button MIN (adjustable power level-low gear output signal line) on the cutter head, and S2 represents the above-mentioned up button MAX (highest power level-high gear output signal line) on the cutter head. Normally, the single-pole double-throw switch S1 is in a connected state between the movable contact 1 and the high-power stationary contact 3, and when the down button MIN is pressed, the single-pole double-throw switch S1 is in a disconnected state between the movable contact 1 and the high-power stationary contact 3, and is in a connected state between the movable contact 1 and the low-power stationary contact 2. When the down button MIN is pressed, the movable contact 1 of the single pole double throw switch S1 is disconnected from the high power stationary contact 3, the movable contact 1 is connected to the low power stationary contact 2, and the switch is operated at an adjustable power level (MIN), when the up button MAX is pressed, the movable contact 1 of the single pole double throw switch S1 is connected to the high power stationary contact 3, and the switch S2 is turned on, and the switch is operated at a maximum power level (MAX), and when the up button MAX and the down button MIN are simultaneously pressed, the movable contact 1 of the single pole double throw switch S1 is disconnected from the high power stationary contact 3, and the movable contact 1 is connected to the low power stationary contact 2, and the switch is operated at an adjustable power level (MIN). It can be seen that the maximum power level (MAX) and the adjustable power level (MIN) are operated according to the corresponding gear when they are pressed, and at the same time, the adjustable power level (MIN) is operated when the up button MAX and the down button MIN are pressed at the same time. The scheme is characterized in that after the two buttons are pressed down simultaneously due to the false firing of the cutter head, the operation can be continued by the safety gear, the operation time is saved, and the safety is guaranteed.
As can be seen from the schematic diagram of fig. 5, the single-pole double-throw switch S1 has two connection ports, and in a normal state, the single-pole double-throw switch S1 is always connected to the high-power stationary contact 3. When the upper button spring sheet (switch S2) is pressed downwards, the switch S2 is turned into a closed state, the circuit is conducted, at the moment, the high-gear output signal can be transmitted to the signal detection circuit of the host machine to drive the host machine to output the high-gear parameter to work, when the lower button spring sheet (single-pole double-throw switch S1) is pressed downwards, the single-pole double-throw switch S1 is conducted with the low-power fixed contact 2, at the moment, the single-pole double-throw switch S1 is still in the closed state, the low-gear output signal is transmitted to the signal detection circuit of the host machine to drive the host machine to output the low-gear parameter to work, and when the upper button spring sheet (S1) and the lower button spring sheet (S2) are pressed simultaneously, the single-pole double-throw switch S1 is conducted with the low-power fixed contact 2 to drive the switch S2 to be turned into the closed state, at the moment, the high-gear output signal circuit is disconnected, the low-gear output signal circuit is conducted and the signal is transmitted to the signal detection circuit of the host machine to drive the host machine to output the low-gear parameter to work.
The adjustable power level may also be a low power level or a low gear power level.
According to the structure and the circuit design, the operation of pressing the button MIN button to a low gear, the operation of pressing the upper button MAX to a high gear and the operation of pressing the upper button MAX and the lower button MIN simultaneously to a low gear can be realized.
It should be noted that although several units/modules or sub-units/modules of the apparatus are mentioned in the above detailed description, this division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more units/modules described above may be embodied in one unit/module in accordance with embodiments of the present invention. Conversely, the features and functions of one unit/module described above may be further divided into ones that are embodied by a plurality of units/modules.
While the spirit and principles of the present invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments nor does it imply that features of the various aspects are not useful in combination, nor are they useful in any combination, such as for convenience of description. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (6)
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| CN202010923283.2A CN111938759B (en) | 2020-09-04 | 2020-09-04 | Ultrasonic surgical instrument with simultaneously depressible blade buttons |
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| CN202010923283.2A CN111938759B (en) | 2020-09-04 | 2020-09-04 | Ultrasonic surgical instrument with simultaneously depressible blade buttons |
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| CN111938759B true CN111938759B (en) | 2025-06-17 |
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| CN212973035U (en) * | 2020-09-04 | 2021-04-16 | 盈甲医疗器械制造（上海）有限公司 | Ultrasonic surgical instrument with simultaneously depressible blade buttons |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100125292A1 (en) * | 2008-11-20 | 2010-05-20 | Wiener Eitan T | Ultrasonic surgical system |
| CN104207824B (en) * | 2013-05-30 | 2017-04-19 | 厚凯(北京)医疗科技有限公司 | Ultrasonic cutter device used for bone operations |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212973035U (en) * | 2020-09-04 | 2021-04-16 | 盈甲医疗器械制造（上海）有限公司 | Ultrasonic surgical instrument with simultaneously depressible blade buttons |
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