Ultrasonic knife gasket protection method and system based on intelligent temperature sensing
A technology of ultrasonic knife and knife shim, which is applied in the field of ultrasonic scalpel control, generator, and ultrasonic knife surgical instruments, and can solve problems such as accelerated wear, gasket melting, and reduced performance and service life of the ultrasonic knife head.
Pending Publication Date: 2021-12-03
INNOLCON MEDICAL TECH SUZHOU
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Problems solved by technology
[0004] Generally speaking, when the ultrasonic scalpel is working, the tissue is clamped and cut by the tip of the front claw and the front end of the knife rod. After the tissue is cut, the gasket of the front claw and the tip of the knife will be in direct contact. A local high temperature region above 300°C (for example, 380°C to 600°C) may be formed in a short period of time, and the melting point of the gasket made of Teflon is about 350°C. If the temperature is not controlled, the gasket will melt , accelerated wear, will greatly reduce the performance and service life of the ultrasonic cutter head
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[0054] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are included within the protection scope of the present invention.
[0055] During the working process of the ultrasonic knife system, the phase-locking algorithm is used to change the working frequency of the transducer so that the transducer works at the state of maximum working efficiency, that is, the resonance state. In the resonant state, the sound wave propagating on the ultrasonic knife bar must meet the standing wave condition. Assuming that the length of the ultrasonic knife bar is L, the sound wave wavelength is λ, the sound velocity is v, and the resonance frequency is f, then the following conditions must be met in the resonant state Working condition...
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The invention discloses an ultrasonic knife gasket protection method and system based on intelligent temperature sensing. The system comprises a generator, a transducer and an ultrasonic scalpel head, the generator collects feedback parameters of a surgical instrument in real time during working, then the real-time temperature of a surgical site is estimated through a temperature distribution function model according to the feedback parameters and instrument characteristic parameters, and after the real-time temperature is compared with one or more temperature threshold values, the target temperature is controlled by using a temperature adaptive algorithm to carry out ultrasonic knife gasket protection, which is accurate and reliable.
Description
technical field [0001] The present invention relates to the field of medical equipment, in particular to a method and system for controlling an ultrasonic scalpel, in particular to a method and system for protecting an ultrasonic scalpel gasket based on intelligent temperature sensing, a generator equipped with the system, and an ultrasonic surgical scalpel. instrument. Background technique [0002] Ultrasonic cutting and hemostasis surgery system for soft tissue (abbreviated as ultrasonic knife system), refers to the ultrasonic vibration obtained through the piezoelectric converter (the electrical energy is transmitted to the piezoelectric converter through the energy generator, and the electrical energy is converted into mechanical energy by the piezoelectric converter). It is further amplified, and the amplified ultrasonic vibration is used for cutting and coagulating the soft tissue by the ultrasonic knife rod. Clinical use of this device enables lesion resection at low...
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Login to View More IPC IPC(8): G06F30/27G06K9/62G06N20/00A61B17/32
CPCG06F30/27G06N20/00A61B17/320068G06F18/214
Inventor 姚龙洋王福源刘振中丁飞骆威
Owner INNOLCON MEDICAL TECH SUZHOU