Ultrasonic surgery system and surgical treatment tool
A technique for surgical systems and treatment instruments, which is applied in the field of ultrasonic surgery systems and surgical treatment instruments, and can solve problems such as increased stress on ultrasonic probes, inability of the main device to output ultrasonic waves, and reduced pressure resistance of blood vessels.
Active Publication Date: 2012-05-30
OLYMPUS CORP
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Problems solved by technology
There are the following problems: when the holding force becomes small, the cutting speed decreases, and when the holding force becomes large, the wear of the PTFE spacer accelerates and the stress of the ultrasonic probe increases
There are the following problems: when the magnitude of the amplitude becomes small, the incision speed decreases, and when the magnitude of the amplitude becomes large, the pressure resistance of blood vessels decreases and the wear of the Teflon spacer accelerates
There are problems that the incision speed decreases when the treatment site is thin tissue, and the stress of the ultrasonic probe increases when the treatment site is hard tissue, and the main unit cannot output ultrasonic waves.
Therefore, there is a problem that the ultrasonic surgical system proposed above requires a control program and a control unit for feedback control, thereby increasing the cost.
Method used
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[0022] (the whole frame)
[0023] figure 1 It is a figure which shows the structure of the ultrasonic surgery system concerning embodiment of this invention. The ultrasonic surgery system 1 is configured to include a handpiece 2 , a main body device 3 as an output control device, and a foot switch 4 .
[0024] The hand piece 2 is a surgical treatment instrument capable of outputting ultrasonic waves. The handpiece 2 is connected to the main device 3 through a detachable cable 2a. The handpiece 2 has an insertion portion 2b and a handle portion 2c. In addition, the handpiece 2 incorporates a driving object including an ultrasonic vibrator 2f. This ultrasonic vibrator 2f has a vibrating mass, and a plurality of ring-shaped piezoelectric elements are stacked so as to sandwich a plurality of ring-shaped electrodes arranged between adjacent piezoelectric elements to form a cylindrical shape. The vibration block. In addition, by passing a bolt through the through-hole at the ...
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An ultrasonic surgery system (1) is provided with an output transformer (Tr), a handpiece (2) which is provided with an object to be driven including an ultrasonic vibrator (2f) that is driven by the output transformer (Tr) and a treatment part (2e) that is coupled to the ultrasonic vibrator (2f) and treats living organism tissue by ultrasonic vibration generated by the ultrasonic vibrator (2f), and a noninductive resistance (R2) which is provided between the output transformer (Tr) and the ultrasonic vibrator (2f) and adjusts the amplitude of the ultrasonic vibrator (2f) by adjusting the amount of an electric current flowing through the ultrasonic vibrator (2f) by diverting an electric current flowing from the output transformer (Tr) to the ultrasonic vibrator (2f) according to the stateof the load applied to the treatment part (2e).
Description
technical field [0001] The invention relates to an ultrasonic operation system and a surgical treatment instrument, in particular to an ultrasonic operation system and a surgical treatment instrument for adjusting the amplitude of an ultrasonic vibrator. Background technique [0002] Conventionally, as an ultrasonic surgical system for surgery using ultrasonic vibration, an ultrasonic surgical system for incising or coagulating living tissue using an ultrasonic probe that performs ultrasonic vibration has been developed. Ultrasonic vibration in this ultrasonic surgery system is realized by driving control of an ultrasonic vibrator attached to the handpiece, and the distal end portion of the ultrasonic probe vibrates with a predetermined amplitude. [0003] However, the magnitude of this amplitude varies depending on component deviation or mounting deviation of the ultrasonic vibrator, or component deviation or mounting deviation of the ultrasonic probe. When the magnitude o...
Claims
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IPC IPC(8): A61B18/00
CPCA61B17/320092B06B1/0238A61B2017/00017A61B2017/320095A61B2017/320093
Inventor 佐内秀男
Owner OLYMPUS CORP