Catheter for image diagnosis
By designing an inclined transceiver surface for the ultrasonic transducer in the image diagnostic conduit and equipping it with back material and protrusions, the problem of interference from external objects being reflected in the tomographic image is solved, resulting in a clearer image diagnostic effect.
CN116584971BActive Publication Date: 2026-05-29TERUMO KK
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TERUMO KK
- Filing Date
- 2020-03-19
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
When existing diagnostic catheters are used in large spaces such as the heart, external objects can easily interfere with the tomographic images, resulting in unclear images.
Method used
A catheter for image diagnosis has been designed, wherein the ultrasonic transceiver surface of the ultrasonic transducer is inclined relative to the extension direction of the sheath, the housing does not block the distal side of the ultrasonic transducer in the direction in which the ultrasonic transceiver surface is located, and is equipped with back material and protrusions to absorb or scatter interference waves.
Benefits of technology
It effectively suppresses external objects from being reflected as interference in the tomographic image, thus improving the image clarity and quality.
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Smart Images
Figure CN116584971B_ABST
Abstract
An image diagnostic catheter of the present application has: a sheath for insertion into a living body; an imaging core portion located inside the sheath; and a drive shaft mounted to a proximal side of the imaging core portion and located inside the sheath, the imaging core portion including: an ultrasonic transducer having an ultrasonic wave transmitting / receiving surface and a back surface opposite the ultrasonic wave transmitting / receiving surface; a back surface material supporting the back surface of the ultrasonic transducer and absorbing a portion of ultrasonic waves transmitted from the ultrasonic transducer; and a support member supporting the back surface of the ultrasonic transducer via the back surface material, the drive shaft being movable inside the sheath along an extension direction of the sheath together with the imaging core portion and being rotatable around an axis of the sheath together with the imaging core portion, the back surface material having a distal covering portion covering a distal end surface of the ultrasonic transducer.
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