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Medical catheter head end capable of measuring contact force

A medical catheter and contact force technology, applied in the field of medical devices, can solve problems such as perforation and edema, achieve the effects of reducing assembly difficulty and errors, improving safety, and reliable data support

Active Publication Date: 2016-01-13
LEPU MEDICAL TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, this radiofrequency ablation operation is performed manually by experienced doctors. Since it is difficult for human hands to accurately control the force of the catheter tip against human tissue, complications such as perforation and edema often occur in heart and artery ablation operations. occur

Method used

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  • Medical catheter head end capable of measuring contact force
  • Medical catheter head end capable of measuring contact force
  • Medical catheter head end capable of measuring contact force

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Embodiment Construction

[0018] In the prior art, the structure of the head end of the pressure-measurable catheter described in CN201420301029.9 requires a combination of a deformable body and several sensors, so the extra accessories will cause large measurement errors. In the present invention, the structure of the deformable body is removed, and the combination of the deformable body and the sensor is simplified into a two-in-one mode, thereby reducing assembly difficulty and errors, and improving the accuracy of the force-measuring head.

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of t...

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Abstract

The invention provides a medical catheter head end capable of measuring contact force. The medical catheter head end comprises an electrode head and a force measuring device, a plurality of blind holes are formed in the electrode head, the force measuring device comprises a plurality of piezoelectric ceramic spring sensors, a base and a plurality of tail lines, and a plurality of through holes are formed in the base. A deformation member and sensors are combined and simplified to be in a two-in-one mode, so that assembly difficult and error are reduced, and accuracy of a force measuring head end is improved. Pressure when the catheter head end contacts with a heart or arterial tissue rich in sympathetic nerve is measured to ensure the pressure to be within a safe range so as to improve safety of high-radio-frequency ablation operation; during the ablation operation, ablation depth can be judged by measuring the pressure when the catheter head end contacts with the tissue, and reliable data support can be provided for doctors to select reasonable ablation power and time.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical catheter head end with measurable contact force. Background technique [0002] In medical interventional operations, radiofrequency ablation catheters have been widely used, and are mainly used in the treatment of atrial fibrillation, arrhythmia, refractory hypertension and other diseases. With the assistance of an X-ray machine, the doctor punctures the femoral artery or the radial artery and inserts the radiofrequency ablation catheter through the blood vessel into the heart or an artery rich in sympathetic nerves to perform radiofrequency ablation of the lesion. [0003] At present, this radiofrequency ablation operation is performed manually by experienced doctors. Since it is difficult for human hands to accurately control the force of the catheter tip against human tissue, complications such as perforation and edema often occur in heart and artery ablation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
Inventor 丁毅寿蔡杰刘万兵蒲忠杰
Owner LEPU MEDICAL TECH (BEIJING) CO LTD
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