AN ATTACHMENT FOR A TROCAR
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United States of America Patent
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Issued Date -
Jun 29, 2023
app pub date -
May 27, 2021
filing date -
May 27, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
An attachment (1) for a trocar cannula (3) having an access valve (12) located in a proximal end (5) thereof comprises a housing (20) defining an instrument passageway (29). An operating member (43) having an instrument bore (46) is slideable in the instrument passageway (29) from a disengaged state disengaged from the access valve (12) to an engagement state extending through the access valve (12) with the access valve (12) in the open state and shielded from an instrument passing therethrough. A pair of detecting probes (55) carried on a carrier (50) and extending into the instrument bore (46) are urgeable distally from a first state to a second state by a distal end of an instrument being urged distally in the instrument bore (46) for in turn urging the operating member (43) from the disengaged state to the engagement state. A proximal seal (40) in the instrument passageway (29) is urged from a non-sealing state to a sealing state by the operating member (43) being urged from the disengaged state to the engagement state.
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