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Ablation monitoring system and method

A technology for ablation catheters and ultrasonic catheters, applied in catheters, applications, ultrasonic/sonic/infrasonic diagnosis, etc., can solve the problem that ultrasonic energy cannot penetrate the ice ball, cannot find the real size, shape or position, and cannot display the three-dimensional size and shape of the ice ball And other issues

Pending Publication Date: 2022-05-13
维兰医疗技术公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, due to the "shadow" cast by this surface reflection, the ultrasonic energy cannot penetrate the puck and cannot reveal the puck's true three-dimensional size and shape
Essentially, existing methods allow users to find the approximate location of the puck's closest surface, but not its true size, shape, or location

Method used

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  • Ablation monitoring system and method
  • Ablation monitoring system and method
  • Ablation monitoring system and method

Examples

Experimental program
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Embodiment Construction

[0028] puck formation

[0029] Cryoablation is often used to kill abnormal tissue that has been found in a patient prior to the procedure. In most cases, the exact location of abnormal tissue is identified by imaging using traditional techniques such as CT or MRI imaging. After determining that cryoablation is suitable for the abnormal tissue, the patient is prepared and the abnormal tissue is repositioned before beginning the procedure. exist figure 1 In , the external ultrasound device 100 is used to identify the location of the target tissue. The same ultrasound equipment is then used to monitor the insertion of the tip of the cryoprobe 110 into the patient 120 . The tip of the cryoprobe 110 may be specially designed to enhance the tip's visibility under ultrasound, for example, by applying grooves or other physical distortions that are highly visible to ultrasound energy. In this manner, the tip of cryoprobe 110 is directed percutaneously at the target tissue. combine...

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Abstract

A system and method are presented for treating target tissue using cryoablation. The introducer cannula and the cryoprobe are inserted into the target tissue. The cryoprobe cools and forms ice balls. The cryoprobe is removed while the ice ball is still in freezing, and the ultrasound catheter is inserted. The ultrasound generated within the hockey is used to determine the distance from the ultrasound conduit to the outer edge of the hockey. And repeating the steps at different angles to simulate the slice of the ice hockey. The ultrasound catheter is moved radially and the process is repeated to create a model of at least a portion of the ice hockey. The hockey model may be displayed on a set of alignment images representing the target tissue to ensure that the tissue is located within the treatment area of the hockey.

Description

technical field [0001] A medical device ultrasound catheter system and method are presented to allow determination of the size, shape and positioning of a puck during cryosurgery. Similar systems and methods can be used to measure the size, shape and location of thermally ablated tissue. Background technique [0002] Cryosurgery or cryoablation is surgery that destroys abnormal or targeted tissue through the freezing process. Freezing of tissue cells results in rupture of cells or organelles within cells. The cryosurgery procedure involves inserting a device (a "cryoprobe") into abnormal tissue and then cooling the device. In most cases, cooling of the cryoprobe is accomplished by passing a high-pressure gas, such as argon, through the device. Cooling the cryoprobe in this manner creates a "puck" of frozen tissue that is approximately centered on the distal end of the cryoprobe. [0003] It is important to accurately determine the size, shape and position of the puck in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/02
CPCA61B8/12A61B18/02A61B18/1492A61B2018/0212A61B2090/378A61B2018/0293A61B2090/3784A61B34/10A61B2018/1861A61B18/082A61B2034/2051A61B2034/105A61B8/085A61B8/0841A61B8/445A61B8/5261A61B2018/1425A61B2018/143A61B2018/00577A61B90/37A61B2018/00702A61B2018/00791A61B2018/00583
Inventor 特洛伊·霍尔辛马可·亨特
Owner 维兰医疗技术公司