Patent US5275262A successfully refreshed from Google Patents.
Patent US5540722A successfully refreshed from Google Patents.
US5540722A
Expired / Lapsed
US
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Switch apparatus and method for switching between multiple electrodes for diagnostic and therapeutic procedures
Assignee: Hospira Sedation Inc
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Filing: 1994-05-16
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Granted: 1996-07-30
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Expires: 2014-05-16
Abstract
Abstract A switch apparatus for performing diagnostic and/or therapeutic procedures on a patient by the use of first and second electrodes adapted to be placed on the patient and by the use of a defibrillator unit and another medical device utilizing radiofrequency energy from a radiofrequency generator unit comprising a multi-function adapter unit adapted to be coupled to the first and second electrodes and adapted to be coupled to the defibrillator unit and to the electrosurgery unit for switching between the defibrillation unit and another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes.
Inventors
- 👤 Christopher R. Clare
- 👤 Mir A. Imran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:15
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B18/14; A61N; A61N1/00; A61N1/40; A61B18/16; A61B2018/00053; A61B2018/00172; A61B2018/00178; A61B2018/00636; A61B2018/0066
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
118 words
Apparatus for performing diagnostic and/or therapeutic procedures on a patient comprising first and second electrodes adapted to be placed on the patient, a radio frequency generator unit, a defibrillator unit and another medical device utilizing radio frequency energy supplied by the radio frequency generator unit, a multi-function adapter unit coupled to the first and second electrodes and coupled to the defibrillator unit and to the another medical device, said multi-function adapter unit including means for detecting the presence of radio frequency energy from the radio frequency generator unit for automatically switching between the defibrillation unit and the another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes.
Claim 2
Dependent Claim
118 words
Apparatus for performing diagnostic and/or therapeutic procedures on a patient comprising first and second electrodes adapted to be placed on the patient, a radio frequency generator unit, a defibrillator unit and another medical device utilizing radio frequency energy supplied by the radio frequency generator unit, a multi-function adapter unit coupled to the first and second electrodes and coupled to the defibrillator unit and to the another medical device, said multi-function adapter unit including means for detecting the presence of radio frequency energy from the radio frequency generator unit for automatically switching between the defibrillation unit and the another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes.
Claim 3
Dependent Claim
34 words
A switch apparatus in claim 1 wherein said multi-function adapter unit includes means for using both of said first and second electrodes as return electrodes when performing a procedure using said another medical device.
Claim 4
Dependent Claim
129 words
A switch apparatus for performing diagnostic and/or therapeutic procedures on a patient by the use of first and second electrodes adapted to be placed on the patient and by a use of a defibrillator unit and another medical device utilizing radio frequency energy supplied by a radio frequency generator unit comprising a multi-function adapter unit adapted to be coupled to the first and second electrodes and adapted to be coupled to the defibrillator unit and to the another medical device for switching between the defibrillation unit and the another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes, said multi-function adapter unit including means for sensing when radio frequency energy from the radio frequency generator unit is present.
Claim 5
Dependent Claim
129 words
A switch apparatus for performing diagnostic and/or therapeutic procedures on a patient by the use of first and second electrodes adapted to be placed on the patient and by a use of a defibrillator unit and another medical device utilizing radio frequency energy supplied by a radio frequency generator unit comprising a multi-function adapter unit adapted to be coupled to the first and second electrodes and adapted to be coupled to the defibrillator unit and to the another medical device for switching between the defibrillation unit and the another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes, said multi-function adapter unit including means for sensing when radio frequency energy from the radio frequency generator unit is present.
Claim 6
Dependent Claim
129 words
A switch apparatus for performing diagnostic and/or therapeutic procedures on a patient by the use of first and second electrodes adapted to be placed on the patient and by a use of a defibrillator unit and another medical device utilizing radio frequency energy supplied by a radio frequency generator unit comprising a multi-function adapter unit adapted to be coupled to the first and second electrodes and adapted to be coupled to the defibrillator unit and to the another medical device for automatically switching between the defibrillation unit and the another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes, said multi-function adapter unit including a first relay for switching between the defibrillator unit and the another surgical device.
Claim 7
Dependent Claim
129 words
A switch apparatus for performing diagnostic and/or therapeutic procedures on a patient by the use of first and second electrodes adapted to be placed on the patient and by a use of a defibrillator unit and another medical device utilizing radio frequency energy supplied by a radio frequency generator unit comprising a multi-function adapter unit adapted to be coupled to the first and second electrodes and adapted to be coupled to the defibrillator unit and to the another medical device for automatically switching between the defibrillation unit and the another medical device to permit performing the diagnostic and therapeutic procedures on the patient utilizing the same first and second electrodes, said multi-function adapter unit including a first relay for switching between the defibrillator unit and the another surgical device.
Claim 8
Dependent Claim
88 words
A switch apparatus as in claim 4 wherein said multi-function adapter unit includes an actuator circuit for sensing the presence or absence of radio frequency energy from the radio frequency generator unit, means connected to the actuator circuit for supplying a radio frequency dummy load to the radio frequency generator unit during the time when the first relay is being switched from the defibrillator unit to the another medical device to prevent the radio frequency generator unit from sensing at any time the absence of an RF signal.
Claim 9
Dependent Claim
60 words
A switch apparatus as in claim 4 further including an indicator unit coupled to the multi-function adapter unit, said indicator unit having first and second light indicating means, means for energizing the first light indicating means when the defibrillator unit is being used and means for energizing the second light indicating means when the another medical device is being used.
Claim 10
Dependent Claim
24 words
A switch apparatus as in claim 6 wherein said indicator unit is connected to said multi-function adapter unit solely by first and second conductors.
Claim 11
Dependent Claim
65 words
A switch apparatus as in claim 6 wherein said indicator unit includes a second relay and an actuator circuit connected to the second relay, means connected to the actuator circuit for ascertaining when radio frequency energy is being supplied to the actuator circuit, said second relay including means for supplying a dummy load to the radio frequency generator unit when the first relay is operated.
Claim 12
Dependent Claim
42 words
A switch apparatus as in claim 8 wherein the multi-function adapter unit includes a plurality of resistors adapted to be coupled to the first and second electrodes to help to establish a substantially uniform current distribution from the electrodes into the patient.
Claim 13
Dependent Claim
28 words
A switch apparatus as in claim 8 wherein said indicator unit includes means for connecting the electrodes to the defibrillator whenever radio frequency energy is not being used.
Claim 14
Dependent Claim
33 words
A switch apparatus as in claim 8 wherein said indicator unit includes fail-safe means for detecting a fault condition and for connecting the electrodes to the defibrillator unit when a fault condition occurs.
Claim 15
Independent Claim
107 words
A method for performing diagnostic and therapeutic procedures on a patient by utilization of first and second electrodes adapted to be placed on a body of a patient and by the use of a defibrillator unit and another medical device utilizing radio frequency energy from a radio frequency generator unit comprising connecting the another medical device to the first and second electrodes, ascertaining the absence of radio frequency energy from the radio frequency generator unit and connecting the first and second electrodes to the defibrillator unit when the absence of radio frequency energy is sensed and at the same time disconnecting the electrodes from another medical device.
Claim 16
Independent Claim
107 words
A method for performing diagnostic and therapeutic procedures on a patient by utilization of first and second electrodes adapted to be placed on a body of a patient and by the use of a defibrillator unit and another medical device utilizing radio frequency energy from a radio frequency generator unit comprising connecting the another medical device to the first and second electrodes, ascertaining the absence of radio frequency energy from the radio frequency generator unit and connecting the first and second electrodes to the defibrillator unit when the absence of radio frequency energy is sensed and at the same time disconnecting the electrodes from another medical device.
Claim 17
Dependent Claim
31 words
A method as in claim 12 together with the step of sensing a fault condition and connecting the first and second electrodes to the defibrillator when the fault condition is sensed.
Claim 18
Dependent Claim
34 words
A method as in claim 12 together with the step of connecting a radio frequency dummy load to the radio frequency generator unit when switching from the defibrillator unit to the another medical device.
Claim 19
Dependent Claim
24 words
A method as in claim 12 wherein the same first and second electrodes are used by the defibrillator unit and the another medical device.
References Cited (Backward Citations)
US4852585A
Cited
US4895169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-30 | 2000-01-29 | 2000-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-30 | 2004-01-29 | 2004-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-30 | 2008-01-29 | 2008-07-30 | $7700.00 | Window Closed / Lapsed |