WO2020152790A1 - Outil de traitement ultrasonore et dispositif chirurgical ultrasonore - Google Patents

Outil de traitement ultrasonore et dispositif chirurgical ultrasonore Download PDF

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Publication number
WO2020152790A1
WO2020152790A1 PCT/JP2019/001928 JP2019001928W WO2020152790A1 WO 2020152790 A1 WO2020152790 A1 WO 2020152790A1 JP 2019001928 W JP2019001928 W JP 2019001928W WO 2020152790 A1 WO2020152790 A1 WO 2020152790A1
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WO
WIPO (PCT)
Prior art keywords
ultrasonic
holder
holder portion
ultrasonic treatment
probe
Prior art date
Application number
PCT/JP2019/001928
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English (en)
Japanese (ja)
Inventor
之彦 島村
Original Assignee
オリンパス株式会社
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Publication date
Application filed by オリンパス株式会社 filed Critical オリンパス株式会社
Priority to PCT/JP2019/001928 priority Critical patent/WO2020152790A1/fr
Publication of WO2020152790A1 publication Critical patent/WO2020152790A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments

Definitions

  • the present invention relates to an ultrasonic treatment tool and an ultrasonic surgical device.
  • an ultrasonic treatment tool for treating a patient using ultrasonic waves generated by an ultrasonic transducer is known (for example, see Patent Document 1).
  • the ultrasonic treatment device of Patent Document 1 includes a probe as a vibration transmission unit that transmits the ultrasonic waves generated by the ultrasonic transducer, and a sheath as a holder unit that holds the probe.
  • a probe as a vibration transmission unit that transmits the ultrasonic waves generated by the ultrasonic transducer
  • a sheath as a holder unit that holds the probe.
  • the probe node may be displaced from the predetermined position due to the difference between the design value of material properties and the temperature change. Since the probe is normally held by the other structural members such as the holder at the position of the node where the vibration is minimal, the vibration of the held part becomes large when the position of the node shifts, so the vibration of the probe In some cases, the heat is transmitted to other members of the ultrasonic treatment tool via the section, and heat or abnormal noise is generated due to friction.
  • the present invention has been made in view of the above, and an object of the present invention is to provide an ultrasonic treatment tool and an ultrasonic surgical device in which the vibration of the vibration transmission unit is prevented from being transmitted via the holder unit.
  • an ultrasonic treatment tool includes a vibration transmission unit that transmits ultrasonic waves having a drive frequency generated by an ultrasonic generation unit, and the drive frequency. And a holder part that has a resonance frequency different from that and that holds the vibration transmission part so that it can vibrate.
  • the ultrasonic treatment instrument is characterized in that the holder portion has a resonance frequency different from the frequency of the third harmonic of the drive frequency.
  • the length of the holder portion in the longitudinal direction is (2n+1) ⁇ /4, where ⁇ is the drive frequency or the wavelength of the third harmonic. It is characterized in that the length is different from (n is an integer of 0 or more).
  • the length of the holder portion in the longitudinal direction is different from (2n+1) ⁇ /4 and 1/16 ⁇ or more.
  • the length of the holder portion in the longitudinal direction is different from (2n+1) ⁇ /4 and 1 ⁇ 8 ⁇ or more.
  • the ultrasonic treatment tool is characterized in that the holder part is composed of a plurality of members having different lengths along the longitudinal direction of the holder part.
  • the ultrasonic treatment instrument is characterized in that a groove or a hole is formed in the holder portion in a direction orthogonal to the longitudinal direction of the holder portion.
  • the ultrasonic treatment instrument is characterized in that a groove or a hole is formed in the holder portion in a direction intersecting the longitudinal direction of the holder portion.
  • An ultrasonic surgical apparatus is characterized by including an ultrasonic treatment tool and an ultrasonic wave generation unit.
  • FIG. 1 is a schematic diagram showing the overall configuration of an ultrasonic operation system including an ultrasonic treatment tool according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the ultrasonic surgical device of the ultrasonic surgical system shown in FIG. 1 taken along a plane along the longitudinal direction.
  • FIG. 3 is a cross-sectional view showing how the ultrasonic treatment tool is attached to and detached from the ultrasonic wave generator shown in FIG.
  • FIG. 4 is a block diagram showing the configuration of the ultrasonic surgery system shown in FIG.
  • FIG. 5 is a side view of the receiving portion of the ultrasonic wave generating portion shown in FIG.
  • FIG. 6 is a diagram for explaining the length of the holder portion.
  • FIG. 1 is a schematic diagram showing the overall configuration of an ultrasonic operation system including an ultrasonic treatment tool according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the ultrasonic surgical device of the ultrasonic surgical system shown in FIG.
  • FIG. 7 is a cross-sectional view of the holder part of the modified example 5.
  • FIG. 8 is a side view of the holder part of the modified example 6.
  • FIG. 9 is a perspective view of a holder portion according to modification 7.
  • FIG. 10 is a sectional view corresponding to line DD in FIG.
  • FIG. 11 is a schematic diagram which shows the structure of the whole ultrasonic operation system containing the ultrasonic treatment tool which concerns on Embodiment 2 of this invention.
  • FIG. 12 is a cross-sectional view showing the ultrasonic surgical device of the ultrasonic surgical system shown in FIG. 11 taken along a plane along the longitudinal direction.
  • FIG. 13 is a diagram for explaining the length of the holder portion according to the second embodiment.
  • FIG. 1 is a schematic diagram showing the overall configuration of an ultrasonic operation system including an ultrasonic treatment tool according to the first embodiment of the present invention.
  • the ultrasonic surgical system 1 includes an ultrasonic surgical device 2, a drive device 3, and a cable 4 connecting the ultrasonic surgical device 2 and the drive device 3.
  • the ultrasonic surgical device 2 includes an ultrasonic treatment instrument 21 and an ultrasonic wave generation section 22 that is attachable to and detachable from the ultrasonic treatment instrument 21.
  • FIG. 2 is a cross-sectional view showing the ultrasonic surgical device of the ultrasonic surgical system shown in FIG. 1 taken along a plane along the longitudinal direction.
  • the ultrasonic treatment device 21 includes a probe 211 as a vibration transmission unit that applies a treatment to a living tissue of a patient by the ultrasonic waves generated by the ultrasonic wave generation unit 22, and a case that covers the periphery of the probe 211.
  • a probe 211 as a vibration transmission unit that applies a treatment to a living tissue of a patient by the ultrasonic waves generated by the ultrasonic wave generation unit 22, and a case that covers the periphery of the probe 211.
  • 212 a plurality of (for example, three) push buttons 213 provided so as to project from the case 212, and a substantially rectangular parallelepiped button holding portion 214 that holds the push buttons 213.
  • FIG. 3 is a cross-sectional view showing how the ultrasonic treatment tool is attached to and detached from the ultrasonic generator shown in FIG.
  • the ultrasonic treatment instrument 21 includes a pin 215 that connects the ultrasonic treatment instrument 21 and the ultrasonic generation unit 22, and a tubular member 216 integrally provided with the probe 211 and the case 212.
  • a spring member 217 configured by a compression coil spring.
  • the ultrasonic wave generation unit 22 includes an ultrasonic wave oscillator 221 that generates an ultrasonic wave, a horn member 222 connected to the ultrasonic wave oscillator 221, and an ultrasonic treatment instrument 21 that extends from the horn member 222.
  • a rod-shaped vibration relay member 223 connected to the probe 211 to relay the transmission of vibration, a substantially cylindrical housing 224 that houses the ultrasonic transducer 221, and an operation of the push button 213 of the ultrasonic treatment instrument 21 are detected.
  • a printed circuit board 225 is a printed circuit board 225.
  • FIG. 4 is a block diagram showing the configuration of the ultrasonic surgery system shown in FIG.
  • the drive device 3 includes an operation display panel 31 for setting and displaying the output level of the ultrasonic output or the high frequency output corresponding to each push button 213 of the ultrasonic treatment instrument 21, and the ultrasonic generator.
  • the ultrasonic transducer drive circuit 32 for driving the ultrasonic transducer 221 of 22, the high frequency current supply circuit 33 that supplies a high frequency current to the probe 211 of the ultrasonic treatment instrument 21, and the control circuit 34 connected to these.
  • the ultrasonic transducer driving circuit 32 is connected to the ultrasonic transducer 221 of the ultrasonic generator 22 by two first conducting wires 35 passing through the cable 4.
  • the high frequency current supply circuit 33 is connected to the probe 211 of the ultrasonic treatment instrument 21 by the second conductive wire 36 passing through the cable 4.
  • the control circuit 34 is connected to the printed circuit board 225 of the ultrasonic wave generator 22 by a plurality of third conducting wires 37 passing through the cable 4.
  • the probe 211 transmits the ultrasonic wave of the drive frequency generated by the ultrasonic wave generator 22.
  • the probe 211 has a rod shape and is formed of, for example, a metal material (for example, titanium, titanium alloy, duralumin, stainless steel, or the like).
  • a flange 211a is formed on the probe 211 so as to project in the outer peripheral direction.
  • one of the two directions parallel to the longitudinal direction C of the probe 211 is the tip direction C1
  • the opposite direction to the tip direction C1 is the base direction C2.
  • the base end portion of the probe 211 is butted against and joined to the tip end portion of the vibration relay member 223.
  • the ultrasonic vibration is transmitted from the ultrasonic transducer 221 to the probe 211, and the high frequency current is supplied from the high frequency current supply circuit 33 through the second conducting wire 36. Therefore, the probe 211 can not only apply ultrasonic vibration to the living tissue, but can also function as the first electrode of the monopolar electric scalpel.
  • the case 212 is made of, for example, a synthetic resin material. Specifically, the case 212 is made of ABS resin with glass added.
  • the case 212 has a holder portion 2121, a holder holding portion 2122, and a plurality of balls 2123 provided so as to intervene in a connecting portion between the holder portion 2121 and the holder holding portion 2122.
  • the holder 2121 has a tubular shape, and the probe 211 is inserted therethrough.
  • the holder part 2121 has a resonance frequency different from the drive frequency of the probe 211.
  • the holder portion 2121 has a holding portion 2121a that is a circular recess, and holds the inserted probe 211 in a vibrating manner.
  • the tip-side surface of the holding portion 2121a comes into contact with the tip-side surface of the flange 211a of the probe 211 with an O-ring (not shown) interposed by the biasing force of the spring member 217.
  • the holder part 2121 and the probe 211 can be rotated around the central axis C with respect to the holder holding part 2122.
  • the plurality of balls 2123 are provided around the central axis C at appropriate intervals, and reduce the friction between the holder portion 2121 and the holder holding portion 2122.
  • a bearing such as a thrust ball bearing that allows rotation or rotation around the central axis C2 may be arranged between the holder portion 2121 and the holder holding portion 2122.
  • a lubricative seat member, an oil-free bush, or the like may be arranged between the holder portion 2121 and the holder holding portion 2122.
  • the push button 213 closest to the tip end direction C1 corresponds to, for example, a cut mode by a high frequency current.
  • the push button 213 in the center corresponds to the first coagulation mode with two types of energy, for example, high-frequency current and ultrasonic vibration.
  • the push button 213 closest to the base end direction C2 corresponds to, for example, the second coagulation mode by the high frequency current.
  • the function corresponding to the push button 213 described above is an example.
  • the function corresponding to each push button 213 can be appropriately set/changed using the operation display panel 31 of the drive device 3.
  • the button holder 214 is provided integrally with the holder holder 2122.
  • the button holding portion 214 has a base portion 2141 formed integrally with the case 212, and a cover 2142 that covers the upper side of the base portion 2141.
  • the three push buttons 213 and three spring members (not shown) that apply a repulsive force to the push buttons 213 are sandwiched and held between the base portion 2141 and the cover 2142.
  • the base portion 2141 and the cover 2142 are fixed by screws.
  • the spring member is composed of a coil spring, but the spring member is not limited to this, and may be a disc spring, a metal dome, a rubber dome, or the like.
  • the ultrasonic oscillator 221 is a so-called bolted Langevin type oscillator.
  • the ultrasonic oscillator 221 includes a plurality of ring-shaped piezoelectric elements 2211 (six in this embodiment), and is predetermined according to the current supplied from the ultrasonic oscillator drive circuit 32 by the piezoelectric elements 2211. Vibrates at the drive frequency.
  • the drive frequency is not particularly limited, but is 47 kHz, for example.
  • the horn member 222 and the vibration relay member 223 are formed of a metal material (for example, titanium, titanium alloy, duralumin, stainless steel).
  • the horn member 222 is provided with a substantially conical cross-section changing portion whose cross-sectional area decreases toward the tip direction C1 of the ultrasonic transducer 221.
  • the ultrasonic vibration generated by the ultrasonic vibrator 221 is transmitted to the horn member 222.
  • the amplitude of ultrasonic vibration is enlarged at the cross-section change portion.
  • a receiving portion 2241 on which the pin 215 on the ultrasonic treatment instrument 21 side is hooked is provided inside the housing 224.
  • the receiving portions 2241 are provided in a pair so as to correspond to the pair of pins 215 provided on the ultrasonic treatment instrument 21 side and extending in the radial direction of the probe 211. As shown in FIG. 5, the receiving portion 2241 is formed in a groove shape on which the pin 215 is hooked. That is, the receiving portion 2241 includes an introducing portion 2241A into which the pin 215 is first inserted, a holding portion 2241B provided in a deep portion of a groove forming the receiving portion 2241, and a guiding portion connecting the introducing portion 2241A and the holding portion 2241B. 2241C, and a protrusion 2241D provided at the boundary between the holding portion 2241B and the guide portion 2241C.
  • a plurality of (three) detection units 2251 are mounted on the printed circuit board 225 and housed in the housing 224.
  • the detection unit 2251 is a non-contact type sensor provided separately from the push button 213 on the ultrasonic treatment instrument 21 side, and can detect the operation of the push button 213 at the position of the detected portion 2131 of the push button 213. ..
  • the tubular member 216 is inserted inside the housing 224, and further the pin 215 is inserted into the introduction section 2241A of the receiving section 2241. Plug into. Then, while rotating the ultrasonic treatment instrument 21 with respect to the ultrasonic generation unit 22, the ultrasonic treatment instrument 21 is pushed into the ultrasonic generation unit 22. Then, the pin 215 reaches the holding portion 2241B from the introduction portion 2241A via the guide portion 2241C, beyond the projection portion 2241D. At this time, the pin 215 slides in the direction C2 with respect to the probe 211 and compresses the spring member 217.
  • the ultrasonic treatment tool 21 When the ultrasonic treatment tool 21 is attached to the ultrasonic wave generator 22, the biasing force of the spring member 217 is applied to the probe 211 that is axially integrated with the tubular member 216. As a result, the probe 211 is brought into contact with the vibration relay member 223. As a result, the ultrasonic energy is transmitted to the probe 211 via the vibration relay member 223. Then, when the ultrasonic treatment instrument 21 is attached to the ultrasonic wave generation unit 22, the above-described attachment/detachment structure positions the ultrasonic treatment instrument 21 so as to position the detected portion 2131 within a range detectable by the printed circuit board 225. can do.
  • the pin 215 resists the biasing force of the spring member 217.
  • the ultrasonic treatment instrument 21 can be easily detached from the ultrasonic wave generation unit 22 by moving and detaching from the holding unit 2241B.
  • the drive device 3 can generate energy transmitted to the ultrasonic surgical device 2 in accordance with the operation of the push button 213.
  • the drive device 3 is connected to a counter electrode plate which is located outside the patient's body and functions as the second electrode of the monopolar electric scalpel.
  • the operation display panel 31 is a touch panel, and can perform various settings such as setting of output level of ultrasonic output, setting of output intensity of high frequency current, and setting of functions of the three push buttons 213. ..
  • the control circuit 34 is connected to the ultrasonic transducer drive circuit 32 and the high frequency current supply circuit 33.
  • the control circuit 34 controls the ultrasonic transducer drive circuit 32 to supply the ultrasonic wave generation current to the piezoelectric element 2211, or controls the high frequency current supply circuit 33 to supply the high frequency current to the probe 211. ..
  • the control circuit 34 can simultaneously control both the ultrasonic transducer drive circuit 32 and the high frequency current supply circuit 33 to supply both the ultrasonic vibration and the high frequency current to the probe 211 at the same time.
  • the vibration of the holder part 2121 will be described.
  • the flange 211a of the probe 211 is arranged at the position of the vibration node of the probe 211, the vibration is prevented from being transmitted from the probe 211 to the holder portion 2121.
  • the position of the vibration node of the probe 211 may deviate from the flange 211a due to a difference from the design value of material physical properties and a temperature change.
  • vibration is transmitted from the probe 211 to the holder portion 2121 and the holder portion 2121 vibrates.
  • the wavelength ⁇ of the probe 211 vibrating at the drive frequency can be expressed by the following formula (1), where C is the propagation velocity in the medium, f is the frequency, E is the Young's modulus, and ⁇ is the density.
  • the wavelength ⁇ of the probe 211 can be calculated from equation (1) to be about 100 mm.
  • FIG. 6 is a diagram for explaining the length of the holder portion.
  • FIG. 6 illustrates the standing wave W 1 of the driving frequency, the standing wave W 2 of the third harmonic of the driving frequency, and a side view of the holder portion 2121.
  • the wavelength of the standing wave W 1 of the driving frequency in the holder portion 2121 can be calculated. ..
  • the holder part 2121 of the first embodiment has a resonance frequency different from the drive frequency of the probe 211.
  • the length L 1 of the holder portion 2121 is (2n+1) ⁇ 1 /4 (n is an integer of 0 or more) for the wavelength ⁇ 1 of the standing wave W 1 of the driving frequency calculated by the equation (1). And have different lengths. Therefore, even if the position of the node when the probe 211 vibrates by ultrasonic waves is displaced, the holder portion 2121 is prevented from resonating with the probe 211. As a result, the vibration of the probe 211 is prevented from being transmitted via the holder portion 2121 and heat generation and abnormal noise are prevented.
  • the holder portion 2121 is an open end against vibration because the tip end along the longitudinal direction is not fixed to another member or the like, and the base end is fixed to the holder holding portion 2122, so it is a fixed end against vibration. Is.
  • the holder portion 2121 has a resonance frequency different from the third harmonic of the drive frequency.
  • the wavelength of the third harmonic of the drive frequency can be calculated by the above-mentioned formula (1).
  • the wavelength ⁇ 2 of the standing wave W 2 of the third harmonic of the drive frequency (2n+1) ⁇ 2 /4 (n is an integer of 0 or more) and the holder portion 2121 If the length L 1 along the longitudinal direction of the holder 2121 is equal, the resonance frequency of the holder 2121 and the frequency of the third harmonic of the drive frequency match, and the vibration of the probe 211 causes the holder 2121 to resonate. The vibration of 2121 becomes large.
  • the holder part 2121 of the modified example 1 has a resonance frequency different from the frequency of the third harmonic of the drive frequency.
  • the length L 1 of the holder portion 2121 is (2n+1) ⁇ 2 /4 (n is an integer of 0 or more) for the wavelength ⁇ 2 of the third harmonic of the driving frequency calculated by the equation (1). It has different lengths. As a result, the holder portion 2121 is prevented from generating heat and abnormal noise due to resonance with the third harmonic of the probe 211.
  • the length L 1 along the longitudinal direction of the holder portion 2121 is (2n+1) ⁇ /4 (where n is the driving frequency or the wavelength of the third harmonic). (An integer of 0 or more).
  • the wavelength ⁇ of the standing wave W 1 of the driving frequency or the standing wave W 2 of the third harmonic of the driving frequency is (2n+1) ⁇ /4 (n is an integer of 0 or more)
  • n is an integer of 0 or more
  • the length L 1 may be any length different from (2n+1) ⁇ /4, where ⁇ is the driving frequency or the wavelength of the third harmonic.
  • the length L 1 along the longitudinal direction of the holder portion 2121 is the standing wave W 1 of the driving frequency or the standing wave W 2 of the third harmonic of the driving frequency.
  • the wavelength ⁇ has a length different from (2n+1) ⁇ /4 by 1/16 ⁇ or more.
  • the length L 1 along the longitudinal direction of the holder portion 2121 is a length that is sufficiently deviated from (2n+1) ⁇ /4, the effect of suppressing the resonance of the holder portion 2121 with the probe 211 becomes remarkable. ..
  • the third modification is more effective than the second modification in that the holder portion 2121 resonates with the probe 211 to prevent heat generation and abnormal noise.
  • the length L 1 along the longitudinal direction of the holder portion 2121 is the standing wave W 1 of the driving frequency or the standing wave W 2 of the third harmonic of the driving frequency.
  • the wavelength ⁇ has a length different from (2n+1) ⁇ /4 and 1 ⁇ 8 ⁇ or more.
  • the length L 1 along the longitudinal direction of the holder portion 2121 is a length that is sufficiently deviated from (2n+1) ⁇ /4, the effect of suppressing the resonance of the holder portion 2121 with the probe 211 becomes remarkable. ..
  • the modification 4 is more effective than the modification 3 in that the holder portion 2121 resonates with the probe 211, and thus the heat generation and the abnormal noise are prevented.
  • FIG. 7 is a cross-sectional view of the holder part of the modified example 5.
  • the holder portion 2121A according to the modified example 5 has a hole 2121Aa and a groove 2121Ba formed in a direction orthogonal to the longitudinal direction of the holder portion 2121. Since the hole 2121Aa or the groove 2121Ba is formed in the holder portion 2121A, the resonance frequency is different from the case where the hole 2121Aa or the groove 2121Ba is not formed.
  • the resonance frequency of the holder portion may be different from the drive frequency or the frequency of the third harmonic.
  • a groove 2121Ab is formed in the holder portion 2121B in a direction intersecting the longitudinal direction of the holder portion 2121.
  • the resonance frequency is different from that in the case where the groove 2121Ab is not formed.
  • the resonance frequency of the holder part 2121 may be different from the drive frequency or the frequency of the third harmonic by forming a hole or groove in a direction intersecting the longitudinal direction of the holder part 2121.
  • the vibration mode of the holder 2121A is twisted with respect to the longitudinal direction of the holder 2121, the holder 2121A is hard to resonate with the probe 211.
  • the holder part is provided with a notch, a notch, a change in thickness, or the like to make the resonance frequency of the holder part different from the drive frequency or the frequency of the third harmonic.
  • the holder portion may have a bellows-like structure, so that the resonance frequency of the holder portion may be different from the drive frequency or the frequency of the third harmonic.
  • FIG. 9 is a perspective view of a holder portion according to modification 7.
  • FIG. 10 is a sectional view corresponding to line DD in FIG.
  • the holder portion 2121 has an annular base end portion 2121Ca located on the base end side, an annular tip end portion 2121Cb located on the tip end side, and a longitudinal direction of the holder portion 2121.
  • a first member 2121Cc that extends and connects the base end portion 2121Ca and the tip end portion 2121Cb, and extends along the longitudinal direction of the holder portion 2121, and the length along the longitudinal direction of the holder portion 2121 is the first member 2121Cc.
  • a second member 2121Cd different from.
  • the holder portion is integrally configured and the resonance frequency is different as in the first embodiment.
  • the resonance frequency of the holder part may be different from the drive frequency or the frequency of the third harmonic. Good.
  • the holes, grooves, gaps, etc. formed in the holder may be filled with a vibration absorbing material such as silicone rubber. Since the vibration absorbing material absorbs vibration, heat generation and abnormal noise can be further suppressed. Further, the filled vibration absorbing material may be exposed on the surface so as to have a function of catching a finger during operation or preventing slipping.
  • a vibration absorbing material such as silicone rubber. Since the vibration absorbing material absorbs vibration, heat generation and abnormal noise can be further suppressed. Further, the filled vibration absorbing material may be exposed on the surface so as to have a function of catching a finger during operation or preventing slipping.
  • the resonance frequency of the holder is set to the drive frequency.
  • it can be different from the frequency of the third harmonic.
  • FIG. 11 is a schematic diagram which shows the structure of the whole ultrasonic operation system containing the ultrasonic treatment tool which concerns on Embodiment 2 of this invention.
  • the ultrasonic surgical system 101 includes an ultrasonic surgical device 102, a driving device 103, and a cable 104 connecting the ultrasonic surgical device 102 and the driving device 103.
  • the ultrasonic surgical device 102 includes an ultrasonic treatment instrument 1021 and an ultrasonic wave generation unit 1022 that can be attached to and detached from the ultrasonic treatment instrument 1021.
  • FIG. 12 is a cross-sectional view showing the ultrasonic surgical device of the ultrasonic surgical system shown in FIG. 11 taken along a plane along the longitudinal direction.
  • the ultrasonic treatment instrument 1021 holds a probe 10211 as a vibration transmission unit that applies a treatment to a living tissue of a patient by the ultrasonic waves generated by the ultrasonic wave generation unit 1022, and a probe 10211 that can vibrate. And a holder portion 10212 for performing.
  • the probe 10211 is rod-shaped, and has a probe tip 10211a that transmits ultrasonic waves of the driving frequency generated by the ultrasonic wave generator 1022, a jaw 10211b that can be opened and closed with respect to the probe tip 10211a, and protrudes in the outer peripheral direction. And a flange 10211c formed on the.
  • the holder 10212 has a tubular shape, and the probe 10211 is inserted therethrough.
  • the holder 10212 has a resonance frequency different from the drive frequency of the probe 10211.
  • the holder portion 10212 has a holding portion 10212a that abuts the side surface of the probe 10211 and holds the inserted probe 10211, and a guide portion 10212b that is a circular recess and that engages with the flange 10211c. Hold so that it can vibrate.
  • the ultrasonic wave generation unit 1022 includes an operation unit 10221 (see FIG. 11) that receives an operation on the ultrasonic surgical device 2 including an operation of opening and closing the jaw 10211b, and an ultrasonic vibrator (not shown) provided on the proximal end side. And a connected horn member 10222 (see FIG. 12).
  • the driving device 103 includes an operation display panel 31 for setting and displaying the output level of ultrasonic output or high frequency output corresponding to the operation unit 10221 of the ultrasonic generator 22.
  • the drive device 103 also includes an ultrasonic transducer drive circuit and a control circuit (not shown), and controls the ultrasonic transducer.
  • the holder 10212 has a resonance frequency different from the drive frequency of the probe 10211.
  • FIG. 13 is a diagram for explaining the length of the holder portion according to the second embodiment. As shown in FIG. 13, the length L 2 of the holder portion 10212 is m ⁇ /2 (for the wavelength ⁇ of the standing wave W 1 of the driving frequency or the standing wave W 2 of the third harmonic of the driving frequency. When m is an integer equal to or greater than 1, the resonance frequency of the holder 10212 matches the drive frequency of the probe 10211, and the vibration of the probe 10211 causes the holder 10212 to resonate and the vibration of the holder 10212 to increase.
  • the length L 2 of the holder 10212 is m ⁇ /2 (for the wavelength ⁇ of the standing wave W 1 of the driving frequency or the standing wave W 2 of the third harmonic of the driving frequency.
  • the length m is an integer greater than or equal to 1) and is different from the length.
  • the relationship between the length of the holder portion 10212 and the drive frequency or the wavelength of the third-order harmonic can be set to the same relationship as in Modifications 1 to 7 as appropriate.
  • the ultrasonic treatment tool and the ultrasonic wave generation unit are attachable/detachable, but the present invention is not limited to this.
  • the ultrasonic treatment tool and the ultrasonic generator are integrally configured and may not be removable.

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  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract

L'invention concerne un outil de traitement ultrasonore, pourvu : d'une unité de distribution de vibrations qui délivre une onde ultrasonore d'une fréquence d'entraînement générée par une unité de génération d'ultrasons ; et d'une unité de support qui a une fréquence de résonance qui est différente de la fréquence de commande, et maintient l'unité de distribution de vibrations en mesure de vibrer. Par conséquent, l'invention concerne un outil de traitement ultrasonore qui empêche la vibration de l'unité de distribution de vibrations d'être délivrée par l'intermédiaire de l'unité de support. De préférence, l'unité de support a une fréquence de résonance qui est différente de la fréquence d'une troisième onde harmonique de la fréquence de commande. Idéalement, la longueur le long du côté long de l'unité de support a une longueur qui diffère de (2n+1) × λ/4 (où n est un nombre entier égal ou supérieur à 0) lorsque la longueur d'onde de la fréquence d'entraînement ou de la troisième onde harmonique est prise comme λ.
PCT/JP2019/001928 2019-01-22 2019-01-22 Outil de traitement ultrasonore et dispositif chirurgical ultrasonore WO2020152790A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05501661A (ja) * 1989-11-17 1993-04-02 ソノキネティックス　インコーポレイテッド 骨小腔からセメントを除去する方法及び装置
JP2008289876A (ja) * 2007-05-25 2008-12-04 Olympus Medical Systems Corp 超音波処置装置
US20100324581A1 (en) * 2006-12-08 2010-12-23 Alcon, Inc. Torsional Ultrasound Hand Piece That Eliminates Chatter
WO2014045667A1 (fr) * 2012-09-24 2014-03-27 オリンパスメディカルシステムズ株式会社 Unité d'activation ultrasonore, et dispositif de traitement ultrasonore

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05501661A (ja) * 1989-11-17 1993-04-02 ソノキネティックス　インコーポレイテッド 骨小腔からセメントを除去する方法及び装置
US20100324581A1 (en) * 2006-12-08 2010-12-23 Alcon, Inc. Torsional Ultrasound Hand Piece That Eliminates Chatter
JP2008289876A (ja) * 2007-05-25 2008-12-04 Olympus Medical Systems Corp 超音波処置装置
WO2014045667A1 (fr) * 2012-09-24 2014-03-27 オリンパスメディカルシステムズ株式会社 Unité d'activation ultrasonore, et dispositif de traitement ultrasonore

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