JP2020032231A - Surgical device having detachable component and state detection circuit for detection of state of attachment of detachable component - Google Patents

Abstract

To provide a surgical device and a method of controlling the surgical device.SOLUTION: The method of controlling the surgical device comprises steps of: generating a first treatment signal state in response to a feedback signal based on a baseline signal and a first target state identifying signal; generating a second treatment signal state in response to a feedback signal based on the baseline signal in the case of absence of the first target state identifying signal; and providing the first target state identifying signal on the basis of an apparatus state signal, selectively electrically connecting in a first connected state to a sensor circuit 1310 arranged with respect to a console 10, and providing the sensor circuit with a feedback signal based on the baseline signal, the first target state identifying signal, and the baseline signal in the case of absence of the first target state identifying signal.SELECTED DRAWING: Figure 1

Description

  The present invention relates generally to a surgical device having a console and replaceable components attached directly or indirectly to the console and a method of providing the surgical device.

  The present invention relates to sensing a condition of one or more electrical configurations of the replaceable component and controlling one or more treatment functions of the replacement component based on the sensed one or more conditions.

  According to a first embodiment, a surgical operation system is provided. The surgical system includes a console including an electrical isolation device, a treatment signal generator configured to generate a treatment signal, and a controller configured to control the treatment signal generator. A first component configured to be directly or indirectly removably attached to the console and configured to be driven by the treatment signal to therapeutically affect biological tissue, and to generate a device status signal. And a reference circuit configured to provide a baseline signal based on the device state signal, wherein a sensor circuit disposed with respect to the console, A first target configured to be selectively electrically connected to the sensor circuit in a connected state, based on the device state signal in the first connected state; A first target condition identification circuit positioned relative to the first component, the sensor circuit configured to provide a condition identification signal, wherein the sensor circuit is configured to provide the baseline signal and the first signal through the electrical isolation device. The controller is configured to output a feedback signal based on the target condition identification signal, and the controller is configured to control the therapy signal generator based on the feedback signal.

  According to a second embodiment, a surgical operation system is provided. The surgical system includes an electrical isolation device, a treatment signal generator configured to generate a treatment signal, and a controller configured to control the treatment signal generator. A console configured to be directly or indirectly removably attached to a first component configured to be driven by and configured to therapeutically affect biological tissue, and to generate a device status signal. A configured device status signal generation circuit, and a reference circuit configured to provide a baseline signal based on the device status signal, wherein a first target status identification circuit disposed with respect to the first component. In the first connection state, the first target state identification circuit is configured to be selectively electrically connected in the first connection state, And a sensor circuit positioned relative to the console, the sensor circuit configured to provide a first target condition identification signal based on the baseline signal and the first target through the electrical isolation device. The controller is configured to output a feedback signal based on the condition identification signal, and the controller is configured to control the treatment signal generator based on the feedback signal.

  According to the third embodiment, a method for providing a surgical operation system is provided. The method provides a console with an electrical isolation device, a therapy signal generator configured to generate a therapy signal, and a controller configured to control the therapy signal generator. Providing a first component configured to be directly or indirectly removably attached to the console, the first component being configured to be driven by the treatment signal and therapeutically affect biological tissue; A device status signal generating circuit configured to generate a device status signal; and a reference circuit configured to provide a baseline signal based on the device status signal, and disposed with respect to the console. Providing a sensor circuit and configured to be selectively electrically connected to the sensor circuit in a first connection state, wherein in the first connection state, Providing a first target condition identification circuit disposed with respect to the first component, the circuit configured to provide a first target condition identification signal based on the device condition signal; and Enabling output of a feedback signal based on a line signal and the first target condition identification signal, and enabling the controller to control the treatment signal generator based on the feedback signal. Including.

  The above and other features, aspects and advantages of the present invention will be better understood by reading the following detailed description with reference to the accompanying drawings. Like reference numerals refer to like parts throughout the drawings.

It is a schematic diagram showing a surgical operation system concerning a first embodiment of the present invention. FIG. 6 is a schematic diagram illustrating a modification of the surgical operation system illustrated in FIG. 1. FIG. 2 is a schematic diagram illustrating an example of the surgical system illustrated in FIG. 1, wherein the target condition detection circuit and three target condition identification circuits are implemented as an unstable oscillator circuit. FIG. 2 is a schematic diagram illustrating an example of the surgical system illustrated in FIG. 1, wherein the target condition detection circuit and three target condition identification circuits are implemented as an unstable oscillator circuit. FIG. 2 is a schematic diagram illustrating an example of the surgical system illustrated in FIG. 1 in which a target condition detection circuit and three target condition identification circuits are implemented as voltage sensors.

  In one embodiment illustrated in FIG. 1, the surgical system 1 includes a console 10, an intermediate component 30 detachable from the console 10, and a first component 50 detachable from the intermediate component 30.

  One example of an intermediate component 30 is a handpiece. One example of the first component 50 is a replaceable tip configured to be removably attached to a handpiece. Additional detailed descriptions of exemplary structures of console 10, intermediate component 30, and first component 50 are discussed further below.

  The surgical system 1 further includes a console 10, an intermediate component 30, and a circuit 100 distributed on the first component 50.

  The circuit 100 includes an alternating current (AC) signal generator 1103, a booster 1105, a pair of conductors 1107 and 1109, a target state detection circuit 1300 having a sensor circuit 1310, a first target state identification circuit 1500, And a two-target state identification circuit 1700.

  As shown in FIG. 1, the AC signal generator 1103, the booster 1105, and the target state detection circuit 1300 are disposed in the console 10, and the first target state identification circuit 1500 and the second target state identification circuit 1700 are the first component. 50, a pair of wires 1107, 1109 are disposed across console 10, intermediate component 30, and first component 50.

  The AC signal generator 1103 supplies an incident signal (more specifically, an AC signal) to the low voltage side of the booster 1105. The booster 1105 boosts the voltage of the AC signal to a high voltage, and outputs the high-voltage AC signal on the high voltage side of the booster 1105 to the pair of conductors 1107 and 1109. The high voltage AC signal is characterized by at least one of the desired frequencies and voltages for one or more of the therapeutic functions performed by the first component. Examples of one or more therapeutic functions performed by the first component are described in further detail below. The high voltage AC signal is referred to herein as a "therapy signal." The therapy signal may range in frequency from about 10 kHz to about 500 kHz, for example in the range of about 150 V to about 1500 V.

  In a variation of the surgical system 1, the AC signal generator 1103 and the booster 1105 generate a therapy signal characterized by at least one of a frequency and a voltage desired for one or more therapy functions performed by the first component. Can be replaced by a signal generator configured as described above.

  The sensor circuit 1310 is configured to detect one or more conditions of the electrical arrangement of the first component 50 with respect to the console 10 via the intermediate component 30. In the first arrangement, the first component 50 is not attached to the intermediate component 30. In the second arrangement, the first component 50 is attached to the console via the intermediate component 30. In the third arrangement, the first component 50 is attached to the console 10 via the intermediate component 30, and a switch provided on the first component 50 is activated by the user.

  The target state detection circuit 1300 has a sensor circuit 1310. The sensor circuit 1310 has a device state signal generation circuit 1311 and a reference circuit 1313. Device status signal generation circuit 1311 provides a device status signal to be referenced to one of conductors 1107 and 1109.

  In the first arrangement, reference circuit 1313 is electrically connected to device status signal generation circuit 1311 and provides a baseline signal based on the device status signal.

  In the second arrangement, the reference circuit 1313 and the first target state identification circuit 1500 are electrically connected to the device state signal generation circuit 1311. Specifically, the first target state identification circuit 1500 includes a device state signal generation circuit when the first component 50 is physically attached to the intermediate component 30 and when the intermediate component 30 is physically attached to the console 10. 1311 is electrically connected. In this second arrangement, reference circuit 1313 and first target state identification circuit 1500 provide a baseline signal and a first target state identification signal based on the device state signal.

  In the third arrangement, the reference circuit 1313, the first target state identification circuit 1500, and the second target state identification circuit 1700 are electrically connected to the device state signal generation circuit 1311. The first target state identification circuit 1500 is electrically connected to the device state signal generation circuit 1311 when the first component 50 is physically attached to the intermediate component 30 and when the intermediate component 30 is physically attached to the console 10. You.

  The second target state identification circuit 1700 has a second target state identification circuit switch 1710 activated by the user. The second target state identification circuit 1700 is provided when the first component 50 is physically attached to the intermediate component 30, when the intermediate component 30 is physically attached to the console 10, and by the user. When 1710 is activated, it is electrically connected to the device status signal generation circuit 1311.

  In the third arrangement, the reference circuit 1313, the first target state identification circuit 1500, and the second target state identification circuit generate a baseline signal, a first target state identification signal, and a second target state identification signal based on the device state signal. give.

  The target state identification circuit 1300 further includes an analog-to-digital converter (ADC) 1330, an electrical isolation circuit 1350, and a controller 1370. The ADC 1330 is configured to convert the characteristics of the baseline signal, the first target condition identification signal, and the second target condition identification signal into a digital signal. This digital signal then passes through the electrical isolation circuit 1350 as a low voltage signal and is passed to the controller 1370 as feedback data. Examples of the electrical isolation circuit 1350 include an optical isolator, a capacitive isolator, and a dielectric isolator.

  Controller 1370 is configured to control at least one treatment function performed by first component 50 based on the feedback data.

In one example, controller 1370 is implemented by hardware or a combination of hardware and software. Controller 1370 is configured to correlate the characteristics of the baseline signal, the second target condition identification signal, and the second target condition identification signal with one or more predetermined values in a look-up table. Based on the one or more predetermined values, the controller 1370 is configured, for example, to determine one or more of the following states for the electrical configuration of the first component 50:
First component 50 is not attached to console 10.
The first component 50 is attached to the console 10 and is one of a recognized component or a set of recognized components.
The first component 50 is attached to the console 10 and is not a recognized component.
The switch of the recognized component has been activated.
And the switch of the recognized component is not activated.
Controller 1370 is further configured to control one or more treatment functions performed by first component 50 based on the determined one or more states of the electrical configuration of first component 50.

  The surgical operation system 1 is not limited to the first target condition identification circuit 1500 and the first target condition identification circuit 1700. The surgical system 1 may have a third target condition identification circuit 1900 and an additional target condition identification circuit that may be arranged to be electrically connected to the device condition signal generation circuit. The third target state identification circuit may include a third target state switch 1910 activated by a user such that the third target state identification circuit is electrically connected to the device state signal generation circuit 1311. . The third target state identification circuit is configured to provide a third target state identification signal, the characteristics of the third target state identification signal being correlated by controller 1370 with a predetermined value in a look-up table. Based on this predetermined value, the controller 1370 is configured to determine an additional state of the electrical arrangement of the first component 50. The controller is configured to control an additional therapy function performed by the first component based on the determined additional state of the electrical configuration of the first component 50.

  Examples of the sensor circuit 1310, the first target state identification circuit 1500, and the first target state identification circuit 1700 are discussed below.

  The sensor circuit 1310, the first target state identification circuit 1500, the first target state identification circuit 1700, and the third target state identification circuit 1900 are, for example, an unstable oscillator circuit (or, more specifically, a capacitive sensing circuit). It may be realized.

  FIG. 3 illustrates an example of an unstable oscillator circuit implemented using a 555 timer integrated circuit. The frequency of the unstable oscillator output signal is determined by the fixed electrical connection to reference circuit 1313 (with reference capacitor 1315) and (i) when first component 50 is physically attached to console 10 via intermediate component 30. Selective electrical connection of the first target state identification circuit 1500 (with the first target state capacitor 1510), (ii) (second target state capacitor 1730) when the user activates the second target state switch 1710 And a second target state switch circuit 1700 (with a second target state switch) and (iii) a third target state capacitor 1930 when the user activates the third target state switch 1910. And a third target state switch 1910). It is. The output signal frequency of the astable oscillator is inversely proportional to the capacitance provided by the reference capacitor, first target capacitor 1510, second target capacitor 1730, and third target capacitor 1930.

  In FIG. 3, the trigger pin 2 and the threshold pin 6 are connected to form a self-trigger, whereby the 555 timer IC operates as an unstable oscillator. Here, the resistors R1 and R2 act as timing resistors, and the discharge pin 7 is connected to the junction of the resistors R1 and R2. When power supply Vcc is connected, reference capacitor 1315 and selectively electrically connected first target capacitor 1510, second target capacitor 1730, and third target capacitor 1930 act like a timing capacitor and change toward Vcc. . When one or more capacitors are charged, output pin 3 is kept high. If one or more capacitors are slightly above 2/3 Vcc, the upper comparator of the 555 timer IC will activate the internal control flip-flop and one or more capacitors will discharge to ground through resistor R2. The output is kept low during this discharge cycle. During this discharge, as the voltage across one or more capacitors reaches 1/3 Vcc, the operation of the lower comparator is started, charging is started again, and the output is kept high.

  As additional capacitors are electrically connected, the capacitance provided increases, thereby reducing the frequency of the unstable oscillator output. Non-stable, such as used to determine one or more states of the electrical configuration of the first component based on predetermined ratings of the reference capacitor, the first target capacitor, the second target capacitor, and the third target capacitor. The frequency of the oscillator output may be correlated.

  The output of the unstable oscillator from pin 3 is referred to herein as a feedback signal. The feedback signal may be a square wave. In the above first arrangement, wherein the first component is not attached to the console, the reference capacitor 1315 is selected such that the unstable oscillator provides a feedback signal having a measurable baseline frequency. In the above second arrangement in which the first component 50 is mounted to the console 10, the first target state capacitor 1510 is selected such that the unstable oscillator provides a feedback signal having a measurable first frequency different from the baseline frequency. In the third arrangement, in which the first component 50 is attached to the console 10 and the second target changer 1710 is actuated to electrically connect the second target state capacitor 1730, the second target state capacitor 1730 is The unstable oscillator is selected to provide a feedback signal having a measurable second frequency different from the line frequency and the first frequency. Then, the controller 1370 is configured to determine the capacitance provided by the unstable oscillator, for example, by counting the pulses of the rectangular wave in a predetermined time period. Then, the determined capacitance indicates the state of the electrical arrangement of the first component 50 with respect to the console 10. It should be noted that even though the first component 50 is not attached to the console 10 (i.e., even in the first configuration described above), the surgical system 1 and, in particular, the circuit 100 may operate at the baseline frequency to control the AC signal generator 1103. A reference circuit 1313 having a reference capacitor 1315 is provided in console 10 so that a based feedback signal is provided to controller 1370.

  In a variation of the circuit 100 shown in FIG. 3, an unstable oscillator circuit configured using a 555 timer IC replaces the reference capacitor 1315 with a reference resistor, and includes a first target capacitor 1510 and a second target state capacitor 1730. And one or more of the third target capacitors may be replaced by corresponding one or more of the first target resistor, the second target resistor, and the third target resistor.

  FIG. 4 illustrates another example of the reference circuit for realizing the unstable oscillator circuit and the sensor circuit 1310.

  FIG. 4 shows an unstable oscillator as a relaxation oscillator. The comparator takes in and compares the reference voltage and device state signal from the voltage divider, sends an output to a reset latch circuit that provides feedback to the comparator, and provides a feedback signal to the controller. The reset type latch circuit includes a Schmitt trigger for providing hysteresis and a transistor switch for resetting oscillation.

  4, the reference resistor 1315, the first target resistor 1510, the second target resistor 1730, and the third target resistor 1930 are respectively the reference capacitor 1315 and the first target capacitor described above with reference to FIG. 1510, replace second target capacitor 1730 and third target capacitor 1930.

  The sensor circuit 1310, the first target state identification circuit 1500, the first target state identification circuit 1700, and the third target state identification circuit 1900 may be realized by, for example, a voltage sensor as illustrated in FIG.

  FIG. 5 shows a device state signal sensing circuit for DC, time-invariant signals. The power supply voltage is supplied by power supply Vcc through pull-up resistor 511 on bus 106 to reference resistor 1510 and one or more standard resistors. The device state signal voltage on bus 106 is compared by device 522 to a reference voltage provided by a voltage divider consisting of resistors 501 and 502. The stability of this comparison is provided by feedback resistor 520. The output of the comparator 522 is provided to an analog-to-digital converter 521 to generate a feedback signal.

  A more detailed description of an exemplary structure of the surgical system 1 will be discussed below. Examples of the interchangeable tip part forming the first component and the handpiece forming the intermediate component are described below.

  In the first embodiment, a handpiece and a debrisder blade as a replaceable tip that is detachable from the handpiece are provided. A detailed description of the construction of the handpiece and debreeder blade can be found, for example, in US patent application Ser. No. 13 / 803,380, the contents of which are incorporated herein by reference.

  The debreeder blade may have a first (outer) tubular body and a second (inner) tubular body. The second tubular body is at least partially disposed within the first tubular body and is arranged to rotate or reciprocate relative to the first tubular body.

  In a first embodiment, a motor (or, more generally, a power transmission) suitable for causing the second tubular body to rotate or reciprocate is disposed within the handpiece or interchangeable tip. You may. This motor is also driven by a signal generator located in the console.

  The first tubular body may have a first set of teeth located at the opening of the first tubular body. The second tubular body may have a second set of teeth located at the opening of the second tubular body. As the second tubular body is rotated or reciprocated, the tissue disposed between the first set of teeth and the second set of teeth is sheared or dissected by the rotation or reciprocation of the second set of teeth. .

  Instead of the first set of teeth and the second set of teeth, a first opening may be provided in the first tubular body, which may be driven by a motor that rotates to remove the target tissue. It may be replaced with a simple rotating bar.

  In the first embodiment, the first target state identification circuit 1500 and the first target state identification circuit 1700 are provided at the interchangeable tip.

  The second embodiment of the interchangeable tip includes a variation of the first embodiment of the interchangeable tip. In a second embodiment, a bipolar cautery and / or coagulation function is provided. Specifically, the first tubular body is charged at a first potential (as an active electrode) and the second tubular body is charged at a second potential (as a return electrode) different from the first potential. The active electrode is electrically connected to conductor 1107 and the return electrode is electrically connected to conductor 1109.

  Referring back to FIG. 1, the interchangeable tip according to the second embodiment is electrically connected to the handpiece through three pins 110, 130, 150. The therapy signal is provided through the pin 110 and into the interchangeable tip. The first target state identification signal to the third target state identification signal are provided to the sensor circuit 110 through the pins 130 and 150 from the interchangeable tip. Then, in the target state detection circuit 1300, the electrical isolation device 1350 separates the feedback signal output by the sensor circuit 1310 from the treatment signal, and transmits the feedback signal to the controller 1370.

  A monopolar configuration may be provided instead of the bipolar configuration described above. In a monopolar configuration, the first tubular body is charged at a first potential (as an active electrode) to provide a return electrode (as a second component) separated from the interchangeable tip.

  In the second embodiment, the interchangeable tip is provided with the first target state identification circuit 1500 and the second target state identification circuit 1700 as described above, and the third target state identification circuit 1900 is provided with a third target state identification switch. 1910.

  In an arrangement where the third target condition identification switch is activated by the user, the controller may be configured to determine that the user has commanded the cautery and / or coagulation function. Based on this determination, controller 1370 may be configured to control AC signal generator 1103 to enable cautery and / or coagulation functions.

  The invention is not limited to the above example. The present invention also encompasses structures that can be driven to provide different combinations of the above cutting, cauterizing and / or coagulating functions.

  The present invention also includes a replaceable tip configured to be controlled to perform other treatment functions, such as, for example, incision by ultrasonic vibration. The first component may include a piezoelectric transducer and an end effector movably connected to the piezoelectric transducer to enable incision by ultrasonic vibration. The piezoelectric transducer is electrically connected to the conductors 1107 and 1109 and is driven by an AC signal generator 1103.

  A modification of the surgical operation system 1 is shown in FIG. According to a variant of this surgical system 1, indirectly attaching the first component 50 to the console 10 via the intermediate component 30 as described above is replaced by attaching the first component 70 directly to the console 10. Can be Specifically, when the first component 50 is physically attached to the console 10, the first target state identification circuit 1500 and the second target state identification circuit 1700 are electrically connected to the device state signal generation circuit 1311.

  In another embodiment, a method for detecting one or more conditions of an electrical configuration of a replaceable component and performing control of one or more therapeutic functions of the replaceable component based on the detected one or more conditions is provided. Provided.

  The method includes a booster 1105, an AC signal generator 1103 (or more generally, a therapy signal generator) configured to generate a therapy signal through the booster 1105, and an AC signal generator 1103 (or therapy). Providing a console having a controller 1370 configured to control the signal generator. The method further includes the first component 50 configured to be directly or indirectly removably attached to the console 10 and configured to be driven by the treatment signal to therapeutically affect the biological tissue. Having a providing step. The method further includes a device status signal generating circuit 1311 configured to generate a device status signal and a reference circuit 1313 configured to output a baseline signal based on the device status signal, Providing a sensor circuit 1310 arranged with respect to. The method is further configured to be selectively electrically connected to the sensor circuit in a first connection state, and in the first connection state, outputting a first target state identification signal based on the device state signal. Comprising providing a first target state identification circuit 1500 configured and arranged with respect to the first component 50. The method further includes enabling the sensor circuit 1310 to output the baseline signal and the first target state identification signal as feedback data through the electrical isolation circuit 1350, and wherein the controller 1370 controls the AC based on the feedback signal. Enabling the signal generator 1103 (or therapy signal generator) to be controlled. The method further includes providing the first component 50 with a first target state identification circuit 1700. The method further includes enabling the second target condition identification circuit 1700 to be selectively electrically connected to the sensor circuit 1310 by activation of the second target condition switch 1710, the second target condition identification circuit 1700 comprising: Outputs a second target state identification signal based on the apparatus state signal. The method further includes enabling the sensor circuit 1310 to output the second target state identification signal as feedback data through the electrical isolation circuit 1350, and based on the feedback data, the controller 1370 using the AC signal generator. Enabling control of 1103 (or the treatment signal generator). The method further includes enabling the controller 1370 to control the AC signal generator 1103 (or treatment signal generator) continuously or periodically based on the feedback data.

  This specification is provided as an example to disclose the invention, including the best mode, and to enable any person skilled in the art to make and use the device or system and practice the invention, including performing the incorporated methods. Is used. The patentable scope of the invention is defined by the claims, which may include other examples that occur to those skilled in the art. Such other examples include equivalent components if they have components that do not differ from the claim language, or if they have only insubstantial differences from the claim language. If so, it is intended to be within the scope of the claims.

  Further, as long as the terms “comprising”, “having”, and “having” and their formal variations are used in the detailed description or the claims, such terms may include “comprising”. It is intended to be as inclusive as the term "comprising", such as when used as a transitional phrase in the claims.

Claims (1)

A method of controlling a surgical device driven by a treatment signal, comprising:
Generating a first therapy signal state in response to a feedback signal based on the baseline signal and the first target state identification signal;
Generating a second therapy signal state in response to a feedback signal based on the baseline signal in the absence of the first target state identification signal;
Providing the first target status identification signal based on a device status signal, wherein in the first connection status, the first target status signal is selectively electrically connected to a sensor circuit disposed relative to a console; Providing a feedback signal based on the baseline signal in the absence of the condition identification signal and the first target condition identification signal to a sensor circuit disposed relative to the console.

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