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Device and method for puncturing soft tissues by ultrasonic vibration

An ultrasonic vibration and soft tissue technology, applied in medicine, ultrasonic vibration puncture soft tissue devices, acoustic interdisciplinary, mechanical fields, can solve the problems of low vibration frequency, insignificant reduction of puncture force, large vibration noise, etc., to reduce the impact, Effect of less puncture force, reduced deformation and deflection of the needle

Inactive Publication Date: 2016-11-23
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

Mahvash from Boston University in the United States proposed that rapid needle insertion can reduce the crack propagation and deformation of soft tissue torn by the needle tip, reduce needle deviation and improve puncture accuracy. The disadvantage is that rapid puncture has safety problems
Kong Xiangzhan of Beijing Institute of Technology has studied an electromagnetic low-frequency vibration puncture device and method. The device has a low vibration frequency, and the vibration noise is relatively large during puncture, and the puncture force does not decrease significantly.

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  • Device and method for puncturing soft tissues by ultrasonic vibration
  • Device and method for puncturing soft tissues by ultrasonic vibration
  • Device and method for puncturing soft tissues by ultrasonic vibration

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Embodiment Construction

[0021] An ultrasonic vibration soft tissue puncture device and method of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation examples.

[0022] See attached figure 1 , attached figure 2 , an ultrasonic vibration soft tissue puncture device and method according to the present invention, comprising: a needle insertion drive mechanism 1, a rotation drive mechanism 3, an ultrasonic vibration mechanism 4, and a puncture mechanism 5, and the needle insertion drive mechanism 1 is provided with a slide table 1-3 , the slide table 1-3 is equipped with an L-shaped frame 1-4, and the L-shaped frame 1-4 is fixedly connected to a rotary drive mechanism 3, and the rotary drive mechanism 3 includes a rotary motor 3-2, and a rotary motor 3 The output shaft of -2 is fixedly connected to the ultrasonic vibration mechanism 4 through a shaft coupling, the ultrasonic vibration mechanism 4 is provided with a transducer 4-...

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Abstract

The invention relates to the field of medical appliances, belongs to the medicine, machinery and acoustics interdiscipline, and particularly relates to a device and a method for puncturing soft tissues by ultrasonic vibration. According to the device and method, a piezoelectric ultrasonic vibration mechanism is adopted to implement soft tissue high-frequency puncture and reduce the influence of noise on the medical environment; furthermore, a high-frequency vibration and rotary needle-insertion puncture method can be adopted to effectively reduce puncture force and reduce soft tissue deformation and needle deflection, so that the positioning accuracy of a puncture needle can be improved.

Description

technical field [0001] The invention and the field of medical devices belong to the interdisciplinary disciplines of medicine, machinery and acoustics, and specifically relate to an ultrasonic vibration device and method for puncturing soft tissues. Background technique [0002] When the puncture needle enters the tissue, it will be subjected to the interaction force between the tissue and it. This interaction force will cause errors in the positioning accuracy of the puncture needle in two aspects: (1) the deformation of the soft tissue will cause the tumor target to drift; (2) the puncture process The needle is asymmetrically applied by the tissue, and the uneven load causes the needle to bend, and the needle bend will cause the needle tip to miss the target position. Many scholars have studied different puncture devices and methods to reduce tissue deformation and needle deflection, thereby improving the positioning accuracy of the needle tip in the tissue. [0003] Minh...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3403A61B2017/3409A61B2017/3413
Inventor 张洪鑫王奕梁艺张永德
Owner HARBIN UNIV OF SCI & TECH
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