US5325860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic and interventional catheter and method
Assignee: Mayo Foundation for Medical Education and Research
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Filing: 1991-11-08
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Granted: 1994-07-05
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Expires: 2011-11-08
Abstract
Abstract A catheter having a catheter body with a proximal and distal end. The catheter including an ultrasonic transducer proximate its distal end. An access port being provided in the catheter for delivery of a therapeutic device or the like to proximate the distal end of the catheter body. A guide wire port being further provided for insertion therethrough of a guide wire.
Inventors
- 👤 James B. Seward
- 👤 Abdul J. Tajik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:54
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B8/00; A61B8/06; A61B8/12; A61B8/44; A61B8/4483; A61B8/4488; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B90/00; A61B90/36; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3784; A61B8/4444; A61B8/445
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
197 words
A catheter apparatus, comprising: an elongated flexible body having proximal and distal ends; an ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged, an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter; port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a therapeutic device whereby the therapeutic device can be delivered to proximate the distal end of the catheter for operation within the ultrasonic transducer field of view, an operational end of the therapeutic device projecting from proximate the distal end of the catheter body into the ultrasonic transducer field of view so as to allow visualization of the therapeutic device during its operation; and guide wire port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a guide wire.
Claim 2
Dependent Claim
197 words
A catheter apparatus, comprising: an elongated flexible body having proximal and distal ends; an ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged, an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter; port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a therapeutic device whereby the therapeutic device can be delivered to proximate the distal end of the catheter for operation within the ultrasonic transducer field of view, an operational end of the therapeutic device projecting from proximate the distal end of the catheter body into the ultrasonic transducer field of view so as to allow visualization of the therapeutic device during its operation; and guide wire port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a guide wire.
Claim 3
Dependent Claim
19 words
An apparatus in accordance with claim 1, wherein the ultrasonic transducer has a frequency of 5 to 20 mHz.
Claim 4
Dependent Claim
19 words
An apparatus in accordance with claim 1, wherein the ultrasonic transducer has a frequency of 7 to 10 mHz.
Claim 5
Dependent Claim
19 words
An apparatus in accordance with claim 1 wherein the catheter body has a diameter of 4 to 24 French.
Claim 6
Dependent Claim
19 words
An apparatus in accordance with claim 1 wherein the catheter body has a diameter of 6 to 12 French.
Claim 7
Dependent Claim
19 words
An apparatus in accordance with claim 1 wherein the port means has a diameter of 7 to 8 French.
Claim 8
Dependent Claim
225 words
A medical system, comprising: a catheter, comprising an elongated flexible body having proximal and distal ends; an ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged, an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter; port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a therapeutic device whereby the therapeutic device can be delivered to proximate the distal end of the catheter for operation within the ultrasonic transducer field of view, an operational end of the therapeutic device projecting from proximate the distal end of the catheter body into the ultrasonic transducer field of view so as to allow visualization of the therapeutic device during its operation; guide wire port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a guide wire; control circuitry means for controlling operation of the ultrasonic transducer; and display means for displaying the flow rates and the features imaged by the ultrasonic transducer.
Claim 9
Dependent Claim
225 words
A medical system, comprising: a catheter, comprising an elongated flexible body having proximal and distal ends; an ultrasonic transducer mounted proximate the distal end of the catheter body to transmit ultrasound and receive resultant echoes so as to provide a field of view within which flow rates can be measured and features imaged, an electrical conductor disposed in the catheter body for electrically connecting the transducer to control circuitry external of the catheter; port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a therapeutic device whereby the therapeutic device can be delivered to proximate the distal end of the catheter for operation within the ultrasonic transducer field of view, an operational end of the therapeutic device projecting from proximate the distal end of the catheter body into the ultrasonic transducer field of view so as to allow visualization of the therapeutic device during its operation; guide wire port means disposed in the catheter body and extending from proximate the proximal end of the catheter body to proximate the distal end of the catheter body for receiving a guide wire; control circuitry means for controlling operation of the ultrasonic transducer; and display means for displaying the flow rates and the features imaged by the ultrasonic transducer.
Claim 10
Dependent Claim
19 words
An apparatus in accordance with claim 7, wherein the ultrasonic transducer has a frequency of 5 to 20 mHz.
Claim 11
Dependent Claim
19 words
An apparatus in accordance with claim 7, wherein the ultrasonic transducer has a frequency of 7 to 10 mHz.
Claim 12
Dependent Claim
19 words
An apparatus in accordance with claim 7, wherein the catheter body has a diameter of 4 to 24 French.
Claim 13
Dependent Claim
19 words
An apparatus in accordance with claim 7 wherein the catheter body has a diameter of 6 to 12 French.
Claim 14
Dependent Claim
19 words
An apparatus in accordance with claim 7 wherein the port means has a diameter of 7 to 8 French.
Claim 15
Independent Claim
157 words
A method of therapeutic intervention in a living body; comprising: inserting a catheter into the body, the catheter having a body with a proximal and distal end; inserting a surgical device into the body through a port disposed in the catheter body and extending from proximate the proximal end to the distal end of the catheter body; projecting the surgical device out of the catheter body from proximate the distal end of the catheter body; pulsing an ultrasonic transducer, disposed proximate the proximal end of the catheter body, to transmit ultrasound and receive resultant echoes; operating the surgical device within a field of view provided by the ultrasonic transducer, an operational end of the surgical device projecting from proximate the distal end of the catheter into the ultrasonic transducer field of view so as to allow visualization of the therapeutic device during its operation; and processing the resultant echoes to image the operation of the surgical device.
Claim 16
Independent Claim
157 words
A method of therapeutic intervention in a living body; comprising: inserting a catheter into the body, the catheter having a body with a proximal and distal end; inserting a surgical device into the body through a port disposed in the catheter body and extending from proximate the proximal end to the distal end of the catheter body; projecting the surgical device out of the catheter body from proximate the distal end of the catheter body; pulsing an ultrasonic transducer, disposed proximate the proximal end of the catheter body, to transmit ultrasound and receive resultant echoes; operating the surgical device within a field of view provided by the ultrasonic transducer, an operational end of the surgical device projecting from proximate the distal end of the catheter into the ultrasonic transducer field of view so as to allow visualization of the therapeutic device during its operation; and processing the resultant echoes to image the operation of the surgical device.
Claim 17
Dependent Claim
23 words
A method in accordance with claim 13, comprising the further step of analyzing the resultant echoes with doppler circuitry to provide hemodynamic information.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-04 | 1998-01-03 | 1998-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-04 | 2002-01-03 | 2002-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-04 | 2006-01-03 | 2006-07-05 | $7700.00 | Window Closed / Lapsed |