US4407304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mounting an electrical lead in a catheter body
Assignee: Edwards Lifesciences Corp
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Filing: 1981-09-11
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Granted: 1983-10-04
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Expires: 2001-09-11
Abstract
Abstract A method of forming a catheter having at least two separate lumens, one containing a gas required in connection with the operation of a pressure responsive element adjacent the catheter's distal end and the other for conveying liquid to and from a port spaced proximally from the pressure responsive element. The two lumens are separated by a longitudinal septum and combine to perform a third function--that of enclosing an electrical conductor which extends through that portion of the gas-containing lumen proximal to the port and through that portion of the liquid-conveying lumen beyond the port. The conductor switches from one lumen to the other through a sealed aperture in the septum. A piercing tool is inserted through the port at an angle to form the aperture distally of the port. The wire is threaded through one duct, through the aperture and through the second duct. Finally a sealable liquid sealing plug is inserted into the area distally of the port for sealing purposes.
Inventors
- 👤 Clement E. Lieber
- 👤 Robert P. Cooper
- 👤 Michael S. Estes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:31
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61M; A61M25/00; A61M25/0009; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/004
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
241 words
A method of mounting an electrical lead in a catheter body having proximal and distal ends and having a plurality of parallel lumens therein, a first one of said lumens being adapted for containing a gas and separated by a longitudinal septum from a second lumen adapted for conducting a liquid; comprising the steps of forming a lateral port in the outer wall of said body at a point intermediate the length thereof, said port communicating only with said second lumen and constituting an opening for the inflow and outflow of a liquid with respect thereto; introducing a tool through said port to form an aperture in said septum, said aperture placing said first and second lumens in communication with each other; then positioning at least one electrical lead in said lumens so that a proximal portion of said lead is disposed in said first lumen on the proximal side of said aperture, a distal portion of said lead is disposed in said second lumen on the distal side of said aperture, and an intermediate portion of said lead extends through said aperture from one lumen to the other; and thereafter closing and sealing said aperture and said second lumen distal to said port by means of a sealant plug introduced through said port into said second lumen, whereby, liquid may thereafter flow through said second lumen between said port and the proximal end of said body without contacting said lead.
Claim 2
Independent Claim
241 words
A method of mounting an electrical lead in a catheter body having proximal and distal ends and having a plurality of parallel lumens therein, a first one of said lumens being adapted for containing a gas and separated by a longitudinal septum from a second lumen adapted for conducting a liquid; comprising the steps of forming a lateral port in the outer wall of said body at a point intermediate the length thereof, said port communicating only with said second lumen and constituting an opening for the inflow and outflow of a liquid with respect thereto; introducing a tool through said port to form an aperture in said septum, said aperture placing said first and second lumens in communication with each other; then positioning at least one electrical lead in said lumens so that a proximal portion of said lead is disposed in said first lumen on the proximal side of said aperture, a distal portion of said lead is disposed in said second lumen on the distal side of said aperture, and an intermediate portion of said lead extends through said aperture from one lumen to the other; and thereafter closing and sealing said aperture and said second lumen distal to said port by means of a sealant plug introduced through said port into said second lumen, whereby, liquid may thereafter flow through said second lumen between said port and the proximal end of said body without contacting said lead.
Claim 3
Dependent Claim
19 words
The method of claim 2 in which said aperture is formed in said septum just distal to said port.
Claim 4
Dependent Claim
53 words
The method of claim 2 in which said sealant plug is formed of a flowable material capable of changing into a hardened state and is introduced into said second lumen in flowable form, said sealant plug material also embedding a portion of said lead within said second lumen just distal to said port.
Claim 5
Independent Claim
190 words
A method of mounting an electrical lead in a catheter body having proximal and distal ends and having a plurality of parallel lumens therein, a first one of said lumens being adapted for containing a gas and separated by a longitudinal septum from a second lumen adapted for conducting a liquid; comprising the steps of forming a lateral opening in the outer wall of said body communicating only with said second lumen; introducing a tool through said opening to form an aperture in said septum, said aperture placing said first and second lumens in communication with each other; then positioning at least one electrical lead in said lumens so that a proximal portion of said lead is disposed in said first lumen on the proximal side of said aperture, a distal portion of said lead is disposed in said second lumen, and an intermediate portion of said lead extends through said aperture from one lumen to the other; and thereafter closing and sealing said aperture and isolating said opening from a portion of said second lumen by means of a sealant plug introduced through said opening into said second lumen.
Claim 6
Independent Claim
190 words
A method of mounting an electrical lead in a catheter body having proximal and distal ends and having a plurality of parallel lumens therein, a first one of said lumens being adapted for containing a gas and separated by a longitudinal septum from a second lumen adapted for conducting a liquid; comprising the steps of forming a lateral opening in the outer wall of said body communicating only with said second lumen; introducing a tool through said opening to form an aperture in said septum, said aperture placing said first and second lumens in communication with each other; then positioning at least one electrical lead in said lumens so that a proximal portion of said lead is disposed in said first lumen on the proximal side of said aperture, a distal portion of said lead is disposed in said second lumen, and an intermediate portion of said lead extends through said aperture from one lumen to the other; and thereafter closing and sealing said aperture and isolating said opening from a portion of said second lumen by means of a sealant plug introduced through said opening into said second lumen.
Claim 7
Dependent Claim
52 words
The method of claim 4 in which said sealant plug is formed of a flowable material capable of changing into a hardened state and is introduced into said second lumen in flowable form, said sealant plug material also embedding a portion of said lead within said second lumen and within said aperture.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |