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Tool bit device with energy gathering characteristic and ultrasonic surgical instrument

A cutter head and energy-gathering technology, applied in medical science, surgery, etc., can solve the problems of poor tissue cutting and coagulation effect of the cutter head unit, unreasonable structural stress concentration layout, and acoustic damage of the cutter head unit, etc. and coagulation effect, reducing the rate of energy loss, avoiding the effect of acoustic damage

Pending Publication Date: 2021-11-19
天津越安医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some of the current cutter head units are in the shape of the elbow structure to increase the surgical field of view, and some are in the shape of a high-efficiency specific shape that increases the balance structure, or are compatible with the composite shape of the above two structures. The existing ultrasonic surgical instruments, among them Due to the unreasonable layout of the high-frequency vibration cutter head unit or the instability of the processing technology caused by the small size of the elbow, the acoustic damage of the cutter head unit is caused. Ideal resulting in poor tissue cutting and coagulation of the head unit

Method used

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  • Tool bit device with energy gathering characteristic and ultrasonic surgical instrument
  • Tool bit device with energy gathering characteristic and ultrasonic surgical instrument
  • Tool bit device with energy gathering characteristic and ultrasonic surgical instrument

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Experimental program
Comparison scheme
Effect test

Embodiment 2

[0092] like Figure 9 As shown, the elbow dynamic balance feature part a11B in the cutter head unit a11 is set as a cross combination of two discontinuous connection structures of the dynamic balance adjustment units a11B1 and a11B2. Considering the size matching and smooth transition of the cutter head unit a11 and the power amplifier unit a12, the shape limitation of the pressure matching characteristic surface and the adjustment of the dynamic balance quality, there are dynamic balance adjustment units a11B1 and a11B2 that can match each other and adjust their respective quality and shape without considering the transition connection between the dynamic balance adjustment units a11B1 and a11B2.

Embodiment 3

[0094] like Figure 10 As shown, the elbow dynamic balance characteristic part b11B in the cutter head unit b11 is set as a connection combination segment connected by multiple smooth curve segments of the dynamic balance adjustment units b11B1, b11B2, and b11B2. Compared with the dynamic balance adjustment units a11B1 and a11B2 provided in Embodiment 2, the cutter head unit b11 is equipped with dynamic balance adjustment units b11B1, b11B2, and b11B2. In addition to the function of a11B2, the smooth transition connection between the dynamic balance adjustment units b11B1, b11B2, and b11B2 is also taken into account, so as to completely reduce the stress concentration caused by the elbow dynamic balance feature part a11B in the cutter head unit a11 in the second embodiment.

Embodiment 4

[0096] like Figure 11A As shown, the shape of the pressure matching characteristic surface c11C is tapered relative to the bending central axis c11A1 according to the high-order hyperbola c11C1, and the high-order double expression is:

[0097]

[0098] Load concentration curve q on pressure matching characteristic surface c11C 4 (x) can be as Figure 11B As shown in , the pressure matching characteristic surface c11C of the cutter head unit c11 is in the interval [0, X 0 ] The load of the upper cantilever beam is increased, and the pressure of the cutter head unit c11 matches the load of the upper cantilever beam on the characteristic surface c11C in the interval [0, X 0 ] The upper integral area is significantly larger than the integral area on the cutter head unit 11', the energy supplemented by the required load for cutting human tissue is greatly reduced, and the cutting speed of human tissue is greatly improved.

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Abstract

The invention discloses a tool bit device with an energy gathering characteristic and an ultrasonic surgical instrument. The tool bit device comprises an ultrasonic energy treatment end, a shaft rod assembly and a near-end connector. A tool bit unit comprises a treatment elbow feature part arranged at the far end of the tool bit unit and deviates from a standard axis at a preset angle, and an elbow dynamic balance feature part arranged at the near end of the tool bit unit, wherein the treatment elbow feature part and the elbow dynamic balance feature part are distributed on the different sides of the standard axis. The tool bit device of the invention has the beneficial effects that the stress concentration of the treatment elbow characteristic part is improved by controlling the influence factors of the treatment elbow characteristic part in the tool bit unit on clutter amplitude, and the energy loss rate of the tool bit unit is reduced; the elbow dynamic balance feature part arranged in the tool bit unit improves a dynamic balance state relative to the treatment elbow feature part in the tool bit unit, the clutter amplitude of the tool bit unit is reduced, and acoustic damage to the tool bit unit is avoided; and a pressure matching feature surface and a negative angle feedback feature part optimize the tissue pressure distribution of the tool bit unit, and cutting and blood coagulation effects are improved.

Description

technical field [0001] The invention relates to the technical field of ultrasonic surgical instruments, in particular to a cutter head device with energy-gathering features and an ultrasonic surgical instrument. Background technique [0002] Now, the surgical instrument containing the ultrasonic treatment energy end cutter head unit has been widely used in clinical surgical treatment. This surgical instrument generally consists of an ultrasonic scalpel generator, one or more piezoelectric ceramic unit transducers and wires. Cable, scalpel head with manual switch, etc., activate the manual switch on the scalpel head to make the ultrasonic surgical instrument work, the host outputs high-frequency resonant electrical signals to the transducer, and the transducer converts the high-frequency vibration signal into high-frequency The high-frequency mechanical vibration is amplified by the acoustic waveguide and transmitted to the head unit on the scalpel head. The high-frequency me...

Claims

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Application Information

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IPC IPC(8): A61B17/32
CPCA61B17/320068A61B2017/320069A61B2017/320072A61B2017/320082
Inventor 钟学平孙秋香
Owner 天津越安医疗科技有限公司
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