Catheter comprising capacitive micromachined ultrasonic transducers with an adjustable focus

一种超声换能器、微机械的技术，应用在导管、超声波疗法、微量传感器等方向，能够解决限制可行声波处理方法等问题，达到降低阳痿风险、尺寸减小、准确和更安全消融流程的效果

Inactive Publication Date: 2013-07-24
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This essentially limits the design of catheter transducers to 1D phased arrays and thus the feasible acoustic processing methods that can be used if conventional piezoceramic or piezocomposite transducers are used

Method used

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  • Catheter comprising capacitive micromachined ultrasonic transducers with an adjustable focus
  • Catheter comprising capacitive micromachined ultrasonic transducers with an adjustable focus
  • Catheter comprising capacitive micromachined ultrasonic transducers with an adjustable focus

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Embodiment Construction

[0232] Like numbered elements in these figures are either equivalent elements or perform the same function. Elements that have been discussed before are not necessarily discussed later if the function is equivalent.

[0233] figure 1 A flowchart illustrating a method according to an embodiment of the invention is shown. In step 100, medical image data is acquired. In step 102, the position of the distal end of the catheter is registered in the medical image data. The catheter distal end may be identified using image recognition technology. For example, portions of the catheter may be identified externally to the subject, and the catheter may have a particular behavior in a particular medical imaging modality. For example, the catheter may be fabricated from a material that has particularly high or low contrast in a particular imaging modality. The catheter may also have a shape that is easily identifiable in the medical image data or include an area that is easily identif...

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Abstract

A catheter (700, 800, 1206) comprising: a shaft with distal (808, 906, 1004, 208) and proximal ends (1006),wherein the distal end comprises at least one array of capacitive micromachined ultrasound transducers (308, 402, 404, 500, 512, 600, 604, 802, 008) with an adjustable focus for controllably heating a target zone (806, 1014, 1210); and a connector(1012) at the proximal end for supplying the at least one array of capacitive micromachined ultrasound transducers with electrical power and for controlling the adjustable focus.

Description

technical field [0001] The present invention relates to catheters for heating a target volume of a subject with ultrasonic energy, in particular the present invention relates to the use of capacitive micromachined ultrasonic transducers for generating ultrasound, and to methods for controlling the generated ultrasound Focus for use in medical imaging. Background technique [0002] High-intensity focused ultrasound (HIFU) ablation of the prostate is traditionally performed with a transrectal probe through the rectal wall. Alternatively, ablation can also be performed through the urethral wall with a transurethral probe. The transurethral approach has several safety-related advantages over the transrectal approach. Since, the position of the urethra is known (the probe is inside the urethra), it is easier to avoid inadvertent thermal injury to the urethra which may increase the risk of incontinence. Also, since no sonication is performed through the rectal wall, the risk of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N7/02A61B19/00G10K11/34
CPCA61B8/4488A61N2007/0095A61N7/022A61B6/03A61B19/5244A61B5/055A61B2019/5236A61B8/12B06B1/0292A61B6/12A61B2562/028A61B8/0841A61B8/54A61B5/06A61B2018/00023G10K11/34A61B5/4836A61B6/4057A61B2019/464A61B5/015A61B5/064A61B8/445A61B8/58A61B2090/064A61B2090/374A61B5/0036
Inventor M·O·科勒P·迪克森S·索卡R·德克尔
Owner KONINK PHILIPS ELECTRONICS NV
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