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Micro-emulsifier for arterial thrombus removal

An emulsifier and miniature technology, which is applied in the direction of vibrating fluids, instruments, sound-generating devices, etc., can solve the problem of not providing thrombus sites

Active Publication Date: 2011-11-09
NANYANG TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art does not provide a solution to better localize the thrombus site with higher precision as required in human applications

Method used

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  • Micro-emulsifier for arterial thrombus removal
  • Micro-emulsifier for arterial thrombus removal
  • Micro-emulsifier for arterial thrombus removal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Figures 1 to 3 Shown in is a microemulsifier 10 comprising a transducer 20 and a transfer line 40 .

[0024] The transducer 20 converts electrical energy into high-power ultrasonic energy, and includes a pair of electrical leads 21 for supplying electrical energy to the transducer 20 . Alternatively, a built-in or removable battery may be provided in the transducer 20 . Alternatively yet, radio frequency waves may be used to supply energy via a built-in antenna (not shown) in transducer 20 . As shown, the leads 21 are connected to the body 26 of the transducer 20 at the distal end 27 of the transducer 20 .

[0025] The body 26 of the transducer 20 also includes a piezoelectric material 28 that actuates the coil 22 and the stack 23 . Each of the piezoelectric materials 28 of the stack 23 may be a lead zirconate titanate ("PZT") crystal. Such as Figure 4 As shown in , each of the piezoelectric materials 28 of the stack 23 is preferably a cylinder with a hollow core...

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PUM

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Abstract

Disclosed is a micro-emulsifier comprising a stack of piezoelectric materials, a horn at a proximal end of the stack of piezoelectric materials, and a transmission wire receivable in the horn for transmission of ultrasound waves able to be produced by the stack of piezoelectric materials. The ultrasound waves are able to be produced in a direction parallel to a longitudinal axis of the stack of piezoelectric materials and the horn. The transmission wire comprises a first end receivable in the horn and a second end remote from the first end, the second end having a bulb thereon.

Description

technical field [0001] The present invention relates to microemulsifiers for arterial thrombus removal, and in particular, though not exclusively, to the ultrasonic ablation of thrombi by miniaturized piezoelectric transducers with flexible transmission lines, and to biological matter emulsification, such as phacoemulsification (phacoemulsification) of thrombus. Background technique [0002] A thrombus is a blood clot that forms and stays in a blood vessel. This can cause damage, destruction (infarction), or even death of tissue (necrosis) in the area. Thrombosurgery is common practice. Many different surgical tools have been developed for thrombus removal. These tools include those that remove blood clots through mechanical force, the use of thrombolytic agents, and ultrasound energy. However, these techniques suffer from numerous disadvantages including, but not limited to, low efficiency and damage to the vessel wall. [0003] Piezoelectric devices have been develope...

Claims

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Application Information

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IPC IPC(8): A61B17/22A61B8/12A61N7/00
CPCB06B1/0611A61B2017/22001A61B17/22012G10K11/02
Inventor 马元刘发浩梅彦昌
Owner NANYANG TECH UNIV
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