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Ablation control device for real-time monitoring of tissue displacement in reaction to a force applied

A control device and real-time monitoring technology, applied in the direction of controlling the energy of instruments, applications, parts of surgical instruments, etc., can solve problems such as expensive, and achieve the effect of preventing insufficient dose and wide application

Inactive Publication Date: 2011-11-23
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007]MRI is used to guide HIFU in ablation but is more expensive
Expensive costs may limit the use of this method to global research centers
At the same time, there may be MR compatibility issues with thermal ablation devices

Method used

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  • Ablation control device for real-time monitoring of tissue displacement in reaction to a force applied
  • Ablation control device for real-time monitoring of tissue displacement in reaction to a force applied
  • Ablation control device for real-time monitoring of tissue displacement in reaction to a force applied

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 1 A functional diagram of the ablation device 100 is depicted by way of illustration and non-limiting example, as figure 1 As shown in the upper part of , it includes a treatment part 105 and an ablation control device 110 .

[0045] As shown in more detail below, the ablation control device 110 includes a monitoring portion 115 and a control portion 120 .

[0046] The treatment section 105 has a high intensity focused ultrasound (HIFU) transducer 125 connected to an RF (radio frequency) amplifier 130 through a matching network 135 .

[0047] The monitoring section 115 includes an imager transducer 140 connected to a pulser 145 and a receiver 150 through a transmit / receive (T / R) switch 155 .

[0048] The control section 120 includes an arbitrary waveform generator (AWG) and flip-flop 160 , a digitizer 165 and a processor 170 . The processor 170 includes a graphical user interface (GUI) 175 , a main signal generator 180 and a motion controller 185 for control...

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PUM

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Abstract

An ablation control device (110) configured for halting, in real time, ablation of body tissue at a current ablation point to achieve a predetermined lesion size upon halting includes a control section (120) configured for registering, with a characteristic curve, one or more values and halting the ablation based on the registering. The value or values are obtained from monitoring (115), for the current ablation point, displacement caused by force applied to the body tissue. In one embodiment, halting is performed upon detecting, by the monitoring and after a peak value of the monitored displacement has occurred, an endpoint value of the monitored displacement. In another embodiment, the endpoint value is determined prior to the detecting, and the determining is performed by the registering.

Description

technical field [0001] The present invention relates to ablation control, and more particularly to real-time control to achieve a predetermined lesion size. Background technique [0002] Tumor ablation therapy using high-intensity focused ultrasound (HIFU) has been under investigation for several years and is entering the US market and clinical trials. [0003] Tumors, such as carcinomas, can be treated medically by surgery and / or chemotherapy. Ablation therapy offers a less invasive alternative. Ablation may be performed by various alternative means, such as by heating (eg, radiofrequency (RF) ablation, high intensity focused ultrasound (HIFU) ablation, microwaves, and lasers), freezing (eg, cryogenic ablation), or chemical reactions. [0004] HIFU is non-invasive because thermal energy is applied from outside the body to focus on the tumor, but the energy is not focused enough to harm the patient's skin or more internal tissues until it is focused on the target tumor. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/08A61N7/02
CPCA61B18/18A61B2019/5276A61B8/08A61B18/20A61N7/02A61B2018/00904A61B2090/378
Inventor J·彼得鲁齐洛A·阿南德S·周
Owner KONINK PHILIPS ELECTRONICS NV
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