Patent EP2648410A1 successfully refreshed from Google Patents.
EP0443256A1
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Ultrasonic recanalization system
Assignee: Urcan Medical Ltd
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Filing: 1990-12-14
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Granted: —
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Expires: 2010-12-14
Abstract
Abstract An ultrasonic recanalization system comprising: an ultrasonic transducer handle (11) comprising a transducer energized by a switch (12), and said transducer is connected to an ultrasonic console (20) containing control means of the ultrasonic energy level applied, determined by a measuring device of the frequency and amplitude (13) provided at the tip ending of said transducer; and said ultrasonic transducer transfers the ultrasonic energy through a hollowed tube (14) entered into the patient's arteries through a triple lumen catheter (22) and said ultrasonic tube having at its ending a bent portion (35) with a flexible tip (34) and said triple lumen catheter having a flow blocking device (31) on the outer circumference of its catheter which can be blown up when required to secure the tip position and block the flow of blood near the stenosis blockage site in the artery; and having a concentric canal passage (32) around said ultrasonic hollowed tube, through which a liquid solution can be pumped in from a reservoir by a pump provided in said ultrasonic console; and said solution can then flow out after washing off the stenosis splinters and blood into a second reservoir provided in said console, through said hollowed tube.
Inventors
- 👤 David Baruch
- 👤 Shmeul Prof. Einav
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:41
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B2017/00092; A61B2017/00831; A61B2017/0084; A61B2017/00849; A61B2017/00853; A61B2017/00973; A61B2017/22051; A61B17/32; A61B17/320068; A61B2017/320072; A61B2017/320073; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61M; A61M1/00; A61M1/84; A61M1/85
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
190 words
An ultrasonic recanalization system comprising: an ultrasonic transducer handle comprising a transducer energized by a switch; and said transducer is connected to an ultrasonic console containing control means of the ultrasonic energy level applied, determined by a measuring device of the frequency and amplitude provided at the tip ending of said transducer; and said ultrasonic transducer transfers the ultrasonic energy through a hollowed tube entered into the patient's arteries through a triple lumen catheter, and said ultrasonic tube having at its ending a bent portion with a flexible tip; and said triple lumen catheter having a flow blocking device on the outer circumference of its catheter which can be blown up when required to secure the tip position and block the flow of blood near the stenosis blockage site in the artery; and having a concentric canal passage around said ultrasonic hollowed tube, through which a liquid solution can be pumped in from a reservoir by a pump provided in said ultrasonic console; and said solution can then flow out after washing off the stenosis splinters and blood into a second reservoir provided in said console, through said hollowed tube.
Claim 2
Dependent Claim
52 words
An ultrasonic recanalization system as in claim 1 wherein said ultrasonic hollowed tip ending is provided with a spring having high flexibility to enable maximal adaptability to movement variation of said tip in the arteries, giving different reactions when in contact with rigid stenosis or plaque blockage, or with soft artery tissue.
Claim 3
Dependent Claim
31 words
An ultrasonic recanalization system as in claim 1 wherein said hollowed tube tip ending is provided with a three cheak rotor, preventing blockage or said hollowed tube tip by stenosis fragments.
Claim 4
Dependent Claim
21 words
An ultrasonic recanalization system as in claim 1 wherein said flow blocking device on said triple lumen catheter is a balloon.
Claim 5
Dependent Claim
33 words
An ultrasonic recanalization system as in claim 1 wherein said console comprises three knob controls to control manually the frequency, gain and flow levels of the ultrasonic transducer, and the solution liquid supply.
Claim 6
Dependent Claim
62 words
An ultrasonic recanalization system as in claim 1 wherein a computerized control circuit is provided in said console, having a computer programme for controlling the ultrasonic energy level transmitted by said ultrasonic transducer; and the flow rate of said solution pumped in through said triple lumen catheter in reference to the temperature of the washout liquid sucked out through said hollowed tube.
Claim 7
Dependent Claim
31 words
An ultrasonic recanalization system as in claim 1 wherein said reservoir containing said solution is included in the console; and a temperature control is provided to secure the desired solution temperature.
Claim 8
Dependent Claim
41 words
An ultrasonic recanalization system as in claim 1 wherein said solution is saline containing appropriate chemicals for cleaning the artery treated by the ultrasonic tip, as well as applying an agent to avoid over reaction to sudden increase in oxygen content.
Claim 9
Dependent Claim
15 words
An ultrasonic recanalization system as in claim 7 wherein said solution also contains strained blood.
Claim 10
Dependent Claim
63 words
An ultrasonic recanalization system as in claim 1 wherein the inwards flow of said solution is through the outer lumen of said triple lumen catheter, and the outwards flow of said washout liquid containing the stenosis splinters with blood is through the inner lumen of said hollowed tube, thus providing a cooling system to said ultrasonic tip emitting ultrasonic energy in the artery.
Claim 11
Dependent Claim
30 words
An ultrasonic recanalization system as in claim 1 wherein said ultrasonic transducer is included in a handle and energized by a switch mounted on said handle, or on a pedal.
Claim 12
Dependent Claim
32 words
An ultrasonic recanalization system as in claim 1 wherein a strain gauge measuring the frequency and amplitude at said hollowed tube tip is mounted at the distal end of said hollowed tube.
Claim 13
Dependent Claim
39 words
An ultrasonic recanalization system as in claim 1 wherein said balloon at the proximal ending of said triple lumen catheter is inflated by a syringe connected through an air connecting tube to said adaptor of siad triple lumen catheter.
Claim 14
Dependent Claim
46 words
An ultrasonic recanalization system as in claim 1 wherein said ultrasonic hollowed tube and tip are made of a rigid longituidinal material, flexible in all other directions with an inner and outer protection coating such as Teflon R or a similar inert tough and smooth material.
Claim 15
Dependent Claim
44 words
An ultrasonic recanalization system as in claim 1 wherein a thermocouple is provided at the distal ending of said hollowed tube, which causes alert when an excess temperature is recorded, indicating potential danger at the ultrasonic tip in the proximal position near the artery.
References Cited (Backward Citations)
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