Vessel Sealer and Divider with Blade Deployment Alarm
First Claim
Patent Images
1. A forceps, comprising:
- a pair of jaw members selectively positionable relative to one another about a pivot, each of the jaw members including an electrically conductive tissue engaging surface adapted to connect to an electrosurgical energy source;
a cutting blade configured to selectively translate within a blade channel defined within at least one jaw member; and
an alarm operatively coupled to the cutting blade and configured to emit a signal when the cutting blade is deployed into the blade channel, wherein the emission of the signal is independent of the activation of the electrosurgical energy source.
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Abstract
An electrosurgical forceps includes a selectively advanceable knife and a knife deployment alarm configured to emit a signal under predetermined conditions. An alarm is configured to emit a signal when the cutting blade moves relative to the blade channel. A series of resistances are arranged so that a shorting of each resistor is indicative of a predetermined operating condition triggering the alarm to emit a signal. Pressure sensors, optical measurement devices, and electrical contacts are envisioned for determining blade or trigger actuation or translation.
77 Citations
19 Claims
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1. A forceps, comprising:
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a pair of jaw members selectively positionable relative to one another about a pivot, each of the jaw members including an electrically conductive tissue engaging surface adapted to connect to an electrosurgical energy source; a cutting blade configured to selectively translate within a blade channel defined within at least one jaw member; and an alarm operatively coupled to the cutting blade and configured to emit a signal when the cutting blade is deployed into the blade channel, wherein the emission of the signal is independent of the activation of the electrosurgical energy source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of operating a forceps, comprising:
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providing a forceps, comprising; a pair of jaw members selectively positionable relative to one another about a pivot, each of the jaw members including an electrically conductive tissue engaging surface adapted to connect to an electrosurgical energy source; a cutting blade configured to selectively translate within a blade channel defined within at least one of the jaw members; and an alarm operatively coupled to the cutting blade; actuating the forceps such that the pair of jaw members engage tissue; advancing the cutting blade to a predetermined position relative to the blade channel without activation of the electrosurgical energy source; sensing the advancement of the cutting blade; and causing the alarm to emit a signal.
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Specification