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US5375594A Expired / Lapsed US ⏱️ 0.0 years remaining

Removable medical electrode system

Assignee: Individual
•
Filing: 1993-03-29
•
Granted: 1994-12-27
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Expires: 2013-03-29
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Abstract

Abstract A removable medical electrode system for monitoring electrical activity of selected tissue comprises a flexible member of electrically insulating material shaped to conform to a surface of the tissue. It includes a mechanism for articulating the electrode between an expanded and contracted position to place and remove the electrode on the tissue, and to hold the electrode in place during an operation. An electrical conductor is fixed to the electrode to carry electrical impulse signals from the nerve tissue to a monitoring system.

Inventors

  • 👤 Roberto A. Cueva

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 05:58
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61B; A61B5/00; A61B5/24; A61B5/25; A61B5/279; A61B5/291; A61B5/293

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 118 words
An atraumatic removable medical electrode system for monitoring electrical activity of selected tissue, comprising: a flexible member of electrically insulating material having an inner surface shaped to conform to a surface of said tissue, said member having a circumferential length sufficient to cover an arc of more than 180 degrees, but less than 360 degrees, for engaging said tissue; an electrical conductor affixed to said inner surface of said member; means for electrically coupling said conductor to an electrical circuit; and actuating means connected to said member for moving said member between a contracted position for holding said electrode on said tissue, and an expanded position for placing said electrode onto and removing said electrode from said tissue.
Claim 2
Dependent Claim 118 words
An atraumatic removable medical electrode system for monitoring electrical activity of selected tissue, comprising: a flexible member of electrically insulating material having an inner surface shaped to conform to a surface of said tissue, said member having a circumferential length sufficient to cover an arc of more than 180 degrees, but less than 360 degrees, for engaging said tissue; an electrical conductor affixed to said inner surface of said member; means for electrically coupling said conductor to an electrical circuit; and actuating means connected to said member for moving said member between a contracted position for holding said electrode on said tissue, and an expanded position for placing said electrode onto and removing said electrode from said tissue.
Claim 3
Dependent Claim 28 words
The electrode system of claim 1, wherein said electrical conductor covers an arc substantially equal to an arc sufficient to cover the surface of the tissue being monitored.
Claim 4
Dependent Claim 17 words
The electrode system of claim 1, wherein said electrical coupling means is integral with said actuating means.
Claim 5
Dependent Claim 53 words
The electrode system of claim 1, wherein said actuating means includes a leg mounted to said member having a line extending from a distal end of said leg, and a guide slidably carrying said line to establish reciprocal movement of said leg to remotely move said member between said expanded and contracted positions.
Claim 6
Dependent Claim 19 words
The electrode system of claim 4, wherein said electrical coupling means is carried in said leg and said line.
Claim 7
Dependent Claim 14 words
The electrode system of claim 5, wherein said member includes an elastic flex portion.
Claim 8
Dependent Claim 52 words
The electrode system of claim 6, further comprising an applicator having a stationary shaft member and an reciprocating rod member carried on said stationary shaft member, said stationary shaft member having a position for engaging said guide; and said reciprocating rod member having means for holding said line to reciprocate said line.
Claim 9
Dependent Claim 26 words
The electrode system of claim 6, further comprising a wand having means for engaging said guide to hold said guide stationary in relation to said line.
Claim 10
Dependent Claim 123 words
A removable medical electrode for monitoring electrical activity of a selected portion of tissue comprising: means for engaging said selected portion of said tissue, said engaging means including a pair of opposed resilient semi-rigid arcuate grasping members shaped for atraumatically holding said engaging means on said tissue portion; means connected to said engaging means for remotely reciprocating said resilient semi-rigid arcuate grasping members between a contracted position wherein said members are spaced apart a first distance to atraumatically grasp said tissue portion, and an expanded position wherein said grasping members are spaced apart a second distance to permit atraumatic application and removal of said electrode to and from said tissue portion; and means for electrically connecting said engaging means to an electrical circuit.
Claim 11
Dependent Claim 123 words
A removable medical electrode for monitoring electrical activity of a selected portion of tissue comprising: means for engaging said selected portion of said tissue, said engaging means including a pair of opposed resilient semi-rigid arcuate grasping members shaped for atraumatically holding said engaging means on said tissue portion; means connected to said engaging means for remotely reciprocating said resilient semi-rigid arcuate grasping members between a contracted position wherein said members are spaced apart a first distance to atraumatically grasp said tissue portion, and an expanded position wherein said grasping members are spaced apart a second distance to permit atraumatic application and removal of said electrode to and from said tissue portion; and means for electrically connecting said engaging means to an electrical circuit.

References Cited (Backward Citations)

US4177818A Cited
EP0134367A1 Cited
US4920979A Cited
US5143067A Cited
US5251634A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-12-26 1998-06-27 1998-12-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-12-26 2002-06-27 2002-12-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-12-26 2006-06-27 2006-12-27 $7700.00 Window Closed / Lapsed

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