Patent US5795298A successfully refreshed from Google Patents.
US5795298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for sharing electrocardiogram electrodes and transducers
Assignee: Sonometrics Corp
•
Filing: 1997-03-07
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Granted: 1998-08-18
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Expires: 2017-03-07
Abstract
Abstract A device having a combined electrode (20) and position tracking transducer (30) mounted to a surgical instrument, such as a catheter (10). In a preferred embodiment of the invention, the electrode (20) serves dual functions, namely as a standard ECG electrode for communicating an ECG voltage, and as an electrode transducer, such as a conductor for a transducer. The combined ECG electrode and position tracking transducer minimizes the amount of space needed on the surgical instrument and the number of required components.
Inventors
- 👤 Ivan Vesely
- 👤 Marshall Edge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:00
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/06; A61B34/00; A61B34/20; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/287; A61B8/00; A61B8/08; A61B8/0833; A61B8/42; A61B8/4245; A61B8/48; A61B8/483; A61B90/00; A61B90/10; A61B90/14; A61B90/17; A61B90/36; A61M; A61M25/00; A61M25/01; A61M25/0105; G; G01; G01H; G01H3/00; G01H5/00; G01S; G01S11/00; G01S11/14; G01S15/00; G01S15/66; G01S15/87; G01S15/876; G01S15/88; G01S15/89; G01S15/8906; G01S15/8909; G01S15/8915; G01S15/8922; G01S15/8993; G01S5/00; G01S5/18; G01S7/00; G01S7/52; G01S7/52017; G01S7/52053; G01S7/52057; G01S7/5206; G01S7/52074; G01S7/56; G01S7/62; G01S7/6245; A61B17/00; A61B17/34; A61B17/3403; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B2034/2046; A61B2034/2051; A61B2034/2063; A61B2034/2072; A61B2090/363; A61B90/37; A61B2090/378; A61B90/39; A61B2090/3904; A61B2090/3908; A61B2090/3925; A61B2090/3929; A61B2090/3954; A61B2090/3958; A61B2560/00; A61B2560/04; A61B2560/0443; A61B2560/045; A61B2562/00; A61B2562/04; A61B2562/043; A61B5/061; A61B5/062; A61B5/45; A61B5/4519; A61B5/4528; A61B8/0841; A61B8/12; A61B90/11; A61M2025/0166; G01S15/02; G01S15/06; G01S15/08; G01S15/10; G01S15/101; G01S15/86; G01S15/899; G01S7/52003; G01S7/52079
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
118 words
A catheter arrangement capable of providing data signals for ECG recording and ultrasonic tracking, comprising: a catheter having a catheter shaft; a plurality of detection means arranged along the catheter shaft comprising: inner conductor means formed on the catheter shaft; outer conductor means surrounding the inner conductor means; a piezoelectric material arranged between the inner conductor means and the outer conductor means; ground conductor means extending from one of the inner conductor means and the outer conductor means; and power conductor means extending from one of the inner conductor means and the outer conductor means, wherein the inner and outer conductor means and piezoelectric material serve as transducer means and the outer conductor means serves as an electrode.
Claim 2
Dependent Claim
118 words
A catheter arrangement capable of providing data signals for ECG recording and ultrasonic tracking, comprising: a catheter having a catheter shaft; a plurality of detection means arranged along the catheter shaft comprising: inner conductor means formed on the catheter shaft; outer conductor means surrounding the inner conductor means; a piezoelectric material arranged between the inner conductor means and the outer conductor means; ground conductor means extending from one of the inner conductor means and the outer conductor means; and power conductor means extending from one of the inner conductor means and the outer conductor means, wherein the inner and outer conductor means and piezoelectric material serve as transducer means and the outer conductor means serves as an electrode.
Claim 3
Dependent Claim
78 words
A catheter arrangement according to claim 1, wherein the arrangement further comprises switching means for switching between an ECG recording mode and an ultrasonic tracking mode, wherein during the ECG recording mode the power conductor means is operatively connected to a voltage amplifier means for communicating a voltage from a heart, and in the ultrasonic tracking mode the ground conductor means is grounded and a voltage is applied to the power conductor means for firing the piezoelectric material.
Claim 4
Dependent Claim
23 words
A catheter arrangement as defined in claim 1, wherein the system further comprises ultrasonic tracking means having a sonomicrometer, and ECG recording means.
Claim 5
Dependent Claim
28 words
A catheter arrangement as defined in claim 3, wherein said switching means alternates between firing the transducer means and recording the voltage applied to said outer conductor means.
Claim 6
Dependent Claim
57 words
A catheter arrangement as defined in claim 4, wherein said switching means includes testing means for determining whether the potential applied to said outer conductor means is generally equal to the potential of a patient in which the catheter is located, and means for preventing the firing of the transducer means if the potentials are not equal.
Claim 7
Dependent Claim
19 words
A catheter arrangement as defined in claim 5, wherein said means for preventing the firing is a reed switch.
Claim 8
Dependent Claim
59 words
A catheter arrangement as defined in claim 4, wherein said switching means includes testing means for determining a first potential applied to the outer conductor means and a second potential of a patient in which the catheter is located, and means for preventing the firing of the transducer means if the first and second potentials are not approximately zero.
Claim 9
Dependent Claim
170 words
A catheter for use with an ECG recording and ultrasonic tracking device, the catheter comprising: an elongated catheter shaft means; a plurality of detection means arranged along the shaft means, each of the detection means comprising: inner conductor means arranged on the shaft means, outer conductor means surrounding the inner conductor means, piezoelectric material arranged between the inner conductor means and the outer conductor means, first conductor lead means extending from the outer conductor means, and second conductor lead means extending from the inner conductor means; wherein the inner conductor means, the outer conductor means and the piezoelectric material therebetween provide an ultrasonic transducer means, and the outer conductor means provides a mapping electrode; and switching means for switching between an ECG recording mode and an ultrasonic tracking mode, wherein the outer conductor means is active as the mapping electrode in the ECG recording mode, and the outer conductor means, the inner conductor means, and the piezoelectric material therebetween are active as a transducer means during the ultrasonic tracking mode.
Claim 10
Dependent Claim
170 words
A catheter for use with an ECG recording and ultrasonic tracking device, the catheter comprising: an elongated catheter shaft means; a plurality of detection means arranged along the shaft means, each of the detection means comprising: inner conductor means arranged on the shaft means, outer conductor means surrounding the inner conductor means, piezoelectric material arranged between the inner conductor means and the outer conductor means, first conductor lead means extending from the outer conductor means, and second conductor lead means extending from the inner conductor means; wherein the inner conductor means, the outer conductor means and the piezoelectric material therebetween provide an ultrasonic transducer means, and the outer conductor means provides a mapping electrode; and switching means for switching between an ECG recording mode and an ultrasonic tracking mode, wherein the outer conductor means is active as the mapping electrode in the ECG recording mode, and the outer conductor means, the inner conductor means, and the piezoelectric material therebetween are active as a transducer means during the ultrasonic tracking mode.
Claim 11
Dependent Claim
24 words
A catheter as defined in claim 8, wherein in the ECG recording mode said outer conductor means communicates a voltage from a patient's heart.
Claim 12
Dependent Claim
32 words
A catheter as defined in claim 8, wherein during the ultrasonic tracking mode, said inner conductor means is grounded and the outer conductor means receives a voltage to fire the piezoelectric material.
Claim 13
Independent Claim
183 words
A system for ECG recording and position tracking, the system comprising: instrument means adapted for insertion into an associated body to facilitate conducting a specified surgical procedure, the instrument means including support means; a plurality of detection means arranged on the support means, each of the detection means comprising: inner conductor means mounted to the support means, outer conductor means surrounding the inner conductor means, piezoelectric material arranged between the inner conductor means and the outer conductor means, first conductor lead means extending from the inner conductor means, and second conductor lead means extending from the outer conductor means, wherein the inner conductor means, the outer conductor means and the piezoelectric material therebetween provide an ultrasonic transducer means, and the outer conductor means provides a mapping electrode; and switching means for switching between an ECG recording mode and an ultrasonic tracking mode, wherein the outer conductor means is active as the mapping electrode in the ECG recording mode, and in the ultrasonic tracking mode, the outer conductor means, the inner conductor means, and the piezoelectric material therebetween are active as a transducer means.
Claim 14
Independent Claim
183 words
A system for ECG recording and position tracking, the system comprising: instrument means adapted for insertion into an associated body to facilitate conducting a specified surgical procedure, the instrument means including support means; a plurality of detection means arranged on the support means, each of the detection means comprising: inner conductor means mounted to the support means, outer conductor means surrounding the inner conductor means, piezoelectric material arranged between the inner conductor means and the outer conductor means, first conductor lead means extending from the inner conductor means, and second conductor lead means extending from the outer conductor means, wherein the inner conductor means, the outer conductor means and the piezoelectric material therebetween provide an ultrasonic transducer means, and the outer conductor means provides a mapping electrode; and switching means for switching between an ECG recording mode and an ultrasonic tracking mode, wherein the outer conductor means is active as the mapping electrode in the ECG recording mode, and in the ultrasonic tracking mode, the outer conductor means, the inner conductor means, and the piezoelectric material therebetween are active as a transducer means.
Claim 15
Dependent Claim
33 words
A system as defined in claim 11, wherein in the ECG recording mode said outer conductor means is adapted to communicate a voltage from an associated patient's heart disposed in the associated body.
Claim 16
Dependent Claim
33 words
A system as defined in claim 11, wherein during the ultrasonic tracking mode, said inner conductor means is grounded and the outer conductor means receives a voltage to fire said the piezoelectric material.
Claim 17
Dependent Claim
25 words
A system as defined in claim 11, wherein the instrument means is one of the following: mapping catheter, mapping basket, mapping plates, and mapping strips.
Claim 18
Dependent Claim
15 words
A system as defined in claim 11, wherein said transducer means is an ultrasonic transducer.
Claim 19
Dependent Claim
141 words
A recording and tracking system having a merged electrode and transducer comprising: an instrument adapted for insertion into an associated body to conduct a surgical procedure, the instrument including support means; inner conductor means mounted to the support means; outer conductor means surrounding the inner conductor means; piezoelectric material arranged between the inner conductor means and the outer conductor means; first conductor lead means extending from the inner conductor means; second conductor lead means extending from the outer conductor means; wherein the inner conductor means, the outer conductor means and the piezoelectric material therebetween form a transducer means, and the outer conductor means forms an electrode; and switching means for switching between the activation of the transducer means and the activation of the electrode, wherein tracking occurs when the transducer means is active and recording occurs when the electrode is active.
Claim 20
Dependent Claim
141 words
A recording and tracking system having a merged electrode and transducer comprising: an instrument adapted for insertion into an associated body to conduct a surgical procedure, the instrument including support means; inner conductor means mounted to the support means; outer conductor means surrounding the inner conductor means; piezoelectric material arranged between the inner conductor means and the outer conductor means; first conductor lead means extending from the inner conductor means; second conductor lead means extending from the outer conductor means; wherein the inner conductor means, the outer conductor means and the piezoelectric material therebetween form a transducer means, and the outer conductor means forms an electrode; and switching means for switching between the activation of the transducer means and the activation of the electrode, wherein tracking occurs when the transducer means is active and recording occurs when the electrode is active.
Claim 21
Dependent Claim
22 words
A system as described in claim 16, wherein said transducer means is an ultrasonic transducer and said electrode is a mapping electrode.
Claim 22
Dependent Claim
22 words
A system as described in claim 16, wherein said transducer means is an ultrasonic transducer and said electrode is an ablation electrode.
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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) | 2001-08-17 | 2002-02-16 | 2002-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-17 | 2006-02-16 | 2006-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-17 | 2010-02-16 | 2010-08-18 | $7700.00 | Window Closed / Lapsed |