US4401127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable electrodes for endocardial pacing
Assignee: LITTLEFORD ELIZABETH H
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Filing: 1981-02-03
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Granted: 1983-08-30
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Expires: 2001-02-03
Abstract
Abstract Electrode catheters for rapid endocardial insertion and for interconnection with a pacemaker include a flexible conductor having an outer, electrically insulating sheath about the conductor with a curve, bend or other portion at the distal end of the catheter. A wing extends laterally from the catheter at the proximal end, and has an established relationship between the lateral direction of the wing and the curve, bend or other portion allowing the physician to control the orientation of the distal end after insertion to permit the desired positioning of the curve, bend or other portion within the heart. The wing may then be used to stabilize the electrode by taping to the patient's skin.
Inventors
- 👤 Philip O. Littleford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:39
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
213 words
A pacing electrode for insertion through a puncture wound into a patient's body for providing an electronic stimulus to the patient's heart, said electrode comprising: a flexible conductor having an outer insulating sheath, said sheath and conductor including proximal and distal ends, a body portion and distal portion, said distal portion extending into a lateral direction away from the axial direction of said body portion; a conductive terminal at the end of said distal portion of said conductor for electrical connection within the heart; means along said body portion at the proximal end of said conductor for indicating said lateral direction of said distal portion; means adjacent the proximal end of said sheath for interconnecting a pacemaker pulse generator to said conductor; and wherein said distal end of said conductor is inserted into the heart with the proximal end and said indicating means extending outside of said puncture wound, whereby said distal portion may be located in a desired position by manipulation of said proximal end and said indicating means after insertion of said distal end into the patient's heart, said indicating means comprising a wing joined to said sheath adjacent said proximal end, said wing extending away from said conductor in a fixed relation to the lateral direction of said distal portion.
Claim 2
Dependent Claim
213 words
A pacing electrode for insertion through a puncture wound into a patient's body for providing an electronic stimulus to the patient's heart, said electrode comprising: a flexible conductor having an outer insulating sheath, said sheath and conductor including proximal and distal ends, a body portion and distal portion, said distal portion extending into a lateral direction away from the axial direction of said body portion; a conductive terminal at the end of said distal portion of said conductor for electrical connection within the heart; means along said body portion at the proximal end of said conductor for indicating said lateral direction of said distal portion; means adjacent the proximal end of said sheath for interconnecting a pacemaker pulse generator to said conductor; and wherein said distal end of said conductor is inserted into the heart with the proximal end and said indicating means extending outside of said puncture wound, whereby said distal portion may be located in a desired position by manipulation of said proximal end and said indicating means after insertion of said distal end into the patient's heart, said indicating means comprising a wing joined to said sheath adjacent said proximal end, said wing extending away from said conductor in a fixed relation to the lateral direction of said distal portion.
Claim 3
Dependent Claim
14 words
The pacing electrode recited in claim 1 further comprising means for stabilizing said conductor.
Claim 4
Dependent Claim
45 words
The pacing electrode recited in claim 2 wherein said stabilizing means comprises a tape strip fixing said wing against the skin of the patient adjacent said puncture wound after insertion of the distal end into the patient's heart, and after manipulation of said indicating means.
Claim 5
Dependent Claim
26 words
The pacing electrode recited in claim 1 wherein said distal portion is bent away from said body portion and out of the plane of said wing.
Claim 6
Dependent Claim
178 words
A pacing electrode adapted for endocardial insertion through the superior vena cava and into the right ventricle of a patient's heart for providing electronic pacing signals, said electrode comprising: a flexible conductor having an outer insulating sheath, said conductor and sheath including proximal and distal ends, a body portion and a distal portion; a conductive terminal at the end of said distal portion of said conductor for electrical connection within the right ventricle; means adjacent the proximal end of said sheath and conductor for interconnecting a pacemaker pulse generator to said conductor; a wing fixed adjacent the proximal end of said sheath and extending along a plane away from said sheath; said distal portion being bent away from the axial direction of said body portion, and out of the plane of said wing; and wherein said conductor and wing are disposed such that said bent distal portion extends angularly toward the tricuspid valve when said conductor passes out of the superior vena cava and through the right atrium, and with said wing lying flat against the patient's skin.
Claim 7
Dependent Claim
178 words
A pacing electrode adapted for endocardial insertion through the superior vena cava and into the right ventricle of a patient's heart for providing electronic pacing signals, said electrode comprising: a flexible conductor having an outer insulating sheath, said conductor and sheath including proximal and distal ends, a body portion and a distal portion; a conductive terminal at the end of said distal portion of said conductor for electrical connection within the right ventricle; means adjacent the proximal end of said sheath and conductor for interconnecting a pacemaker pulse generator to said conductor; a wing fixed adjacent the proximal end of said sheath and extending along a plane away from said sheath; said distal portion being bent away from the axial direction of said body portion, and out of the plane of said wing; and wherein said conductor and wing are disposed such that said bent distal portion extends angularly toward the tricuspid valve when said conductor passes out of the superior vena cava and through the right atrium, and with said wing lying flat against the patient's skin.
Claim 8
Dependent Claim
28 words
The pacing electrode recited in claim 5 wherein said distal portion is disposed with respect to the plane of said wing at an angle of between about 0°-45°.
Claim 9
Dependent Claim
31 words
The pacing electrode recited in claim 5 or 6 wherein said distal portion is disposed with respect to the axial direction of said body portion at an angle of about 60°.
Claim 10
Dependent Claim
21 words
The pacing electrode recited in claim 5 or 6 wherein said distal portion is approximately 6 to 10 centimeters in length.
Claim 11
Dependent Claim
30 words
The pacing electrode recited in claim 5 or 6 wherein said wing is fixed to said sheath approximately 30 to 40 centimeters toward said proximal end from said distal terminal.
Claim 12
Dependent Claim
30 words
The pacing electrode recited in claim 5 or 6 further including indicia on a side of said wing indicating which side thereof faces away from the patient's skin during insertion.
Claim 13
Dependent Claim
25 words
The pacing electrode recited in claim 5 or 6 further comprising means for stabilizing said wing against the patient's skin after insertion of said conductor.
Claim 14
Dependent Claim
187 words
A pacing electrode adapted for endocardial insertion through the superior vena cava and into the right ventricle of a patient's heart for providing electronic pacing signals, said electrode comprising: a flexible conductor having an outer insulating sheath, said conductor and sheath including proximal and distal ends, a body portion and a distal portion; a conductive terminal at the end of said distal portion of said conductor for electrical connection within the right ventricle; means adjacent the proximal end of said sheath and conductor for interconnecting a pacemaker pulse generator to said conductor; a wing adjacent the proximal end of said sheath and extending along a plane away from said sheath; said distal portion bent out of the axial direction of said body portion, out of the plane of said wing and out of a plane normal to the plane of said wing; and wherein said conductor and wing are disposed such that said bent distal portion extends angularly toward the tricuspid valve when said conductor passes out of the superior vena cava and through the right atrium, and with said wing lying flat against the patient's skin.
Claim 15
Dependent Claim
187 words
A pacing electrode adapted for endocardial insertion through the superior vena cava and into the right ventricle of a patient's heart for providing electronic pacing signals, said electrode comprising: a flexible conductor having an outer insulating sheath, said conductor and sheath including proximal and distal ends, a body portion and a distal portion; a conductive terminal at the end of said distal portion of said conductor for electrical connection within the right ventricle; means adjacent the proximal end of said sheath and conductor for interconnecting a pacemaker pulse generator to said conductor; a wing adjacent the proximal end of said sheath and extending along a plane away from said sheath; said distal portion bent out of the axial direction of said body portion, out of the plane of said wing and out of a plane normal to the plane of said wing; and wherein said conductor and wing are disposed such that said bent distal portion extends angularly toward the tricuspid valve when said conductor passes out of the superior vena cava and through the right atrium, and with said wing lying flat against the patient's skin.
References Cited (Backward Citations)
FR375855A
Cited
US3390977A
Cited
US3670727A
Cited
US3729008A
Cited
US3782381A
Cited
US3880169A
Cited
US3939843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |