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Radio frequency ablation probe

A technology for radiofrequency ablation and ablation electrodes, applied in the field of medical devices

Inactive Publication Date: 2011-12-21
谭伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermocouple calibration and application program using RFID storage and reading and writing technology proposed in this patent, as well as the probe parasitic parameter calibration device and program, fully solve the problem of tissue impedance measurement

Method used

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Embodiment Construction

[0017] figure 2 It is a structural diagram of the patent embodiment. It has a connector 1, a connector embedded circuit 2, a wire 3, an operating handle 4, an ablation catheter 8, and the end of an ablation probe. The embedded circuit 2 includes an RFID chip 11, an antenna 23 printed on a circuit board and an impedance matching circuit. RFID chips are already a common technology. The market for RFID chips with internal storage units can be provided by many manufacturers and their communication protocols have formed international standards. For example, ST Microelectronics’ HF short-range RFID with memory can be provided in package and chip form. The RFID chip works in a passive way in the circuit, and the energy is supplied wirelessly by the external RFID reader through the antenna. This patent uses an RFID chip, which occupies a space of 2 mm x 1 mm x 0.2 mm, which is very conducive to the miniaturization of the probe connector. The RFID loop antenna is directly printed o...

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Abstract

Radio frequency ablation is a common method in minimally invasive treatment of the modern medicine. Aiming at the problems of the common ablation instrument and the common probe in application, the invention discloses an intelligent radio frequency ablation probe for treatment. The inside of the probe is embedded with an electronic subsystem. The probe provides various intelligent functions whichcomprises a function of wirelessly recording the using process of the probe, a function of storing and reading and writing a spurious impedance of the probe, a function of storing and reading and writing sensor parameters and the like when realizing ablation function so as to be more favorable to standardization of a using programme of the invasive probe. Moreover, the radio frequency ablation probe can improve the impedance and the accuracy of sensing the temperature during the treatment by a labeling process so as to help doctors to monitor the treatment process more conveniently, accurately and reliably.

Description

technical field [0001] This patent belongs to the technical field of medical devices, and specifically relates to the probe technology for tissue radiofrequency ablation. Background technique [0002] Radiofrequency ablation is a modern minimally invasive technique that is widely used. In recent years, radiofrequency ablation has been applied to a variety of lesion tissues such as the heart, cancer tumors, and even the skin. It makes use of the characteristic that the temperature field rapidly decays near the conductor when radio frequency energy acts on human tissue, so that the treatment point is relatively concentrated, and the lesion is treated with minimally invasive treatment through a small catheter probe. Use below figure 1 The conventional conventional radiofrequency ablation system will be described. figure 1 The radio frequency generator 16 in the application is generally connected with the treatment probe 15 through isolation technology. The RF generator usua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/14
Inventor 谭伟
Owner 谭伟
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