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US 5,458,579 AGranted
Mechanical trocar insertion apparatus
AssigneeTechnalytics, Inc.
InventorsIngram S. Chodorow, M. Zubair Mirza
Life of this patent
Estimating the term…
Abstract
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, the apparatus including a housing for holding a trocar/cannula assembly, a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis, holding means on the housing for holding a trocar/cannula assembly, and drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing from an initial position to a final position, whereby the trocar/cannula assembly carried by said housing is moved axially along said spine.
Claims22
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said drive means adapted to provide a small controlled incremental axial movement of said housing each time it is actuated, said apparatus further comprising actuator means for actuating said drive means to provide said movements whereby the trocar/cannula carried by said housing is movable axially along said spine, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, and (b) engaging means extending from said spine for engaging said body part of said anchor pad, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, and (b) engaging means for engaging said body part of said anchor pad, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, (b) engaging means extending from said spine for engaging said body part of said anchor pad, and (c) lift means adapted to be engaged and pulled axially in the direction of the proximal end, said lift means when pulled applying an axial force to said engaging means and thence to said anchor pad, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, (b) engaging means extending from said spine for engaging said body part of said anchor pad, and (c) means for re-setting said apparatus after the housing has been driven to its final position, by facilitating rearward movement of the housing toward the proximal end of the spine to its initial position where the housing can receive a trocar/cannula, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, and (b) engaging means extending from said spine for engaging said body part of said anchor pad, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine, and wherein said trocar/cannula has a housing part at its proximal end and an obturator at its terminal end, said holding means includes a recess for receiving said housing part of the trocar/cannula and for holding firmly said housing part while said obturator is directed axially toward said terminal end of the spine and while said housing and trocar/cannula are moved along the spine in its terminal end direction, and wherein said recess is adapted to receive said trocar/cannula housing when said trocar is initially angularly directed into the recess and subsequently aligned axially with said spine, and said recess is further adapted to release said trocar by inclining said recess angularly with respect to said inserted trocar, whereby the apparatus is then separated from the trocar/cannula.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, (b) engaging means extending from said spine for engaging said body part of said anchor pad, and auxiliary holding means for further releasably securing the trocar/cannula in said holding means whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine, and wherein said trocar/cannula has a housing part at its proximal end and an obturator at its terminal end, said holding means includes a recess for receiving said housing part of the trocar/cannula and for holding firmly said housing part while said obturator is directed axially toward said terminal end of the spine and while said housing and trocar/cannula are moved along the spine in its terminal end direction, and auxiliary holding means for further releasably securing the trocar/cannula in said holding means.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, said spine further comprising engaging means near its terminal end for engaging said body part of said anchor pad, whereby said spine when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus in the terminal direction of the spine through said wall.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a housing,
- a spine having a longitudinal axis, the spine having proximal and terminal ends, the housing coupled to the spine for movement along said axis,
- holding means on the housing for holding a trocar/cannula, and
- drive means coupled to said housing and spine for driving said housing axially on said spine toward said terminal end thereby moving said housing and trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, and (b) engaging means near said terminal end of said spine for engaging said body part of said anchor pad, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine.
1 more element
Apparatus for inserting a trocar/cannula assembly through a wall of an anatomical cavity of a patient, comprising
- a spine having proximal and terminal ends,
- means for holding a trocar/cannula on said spine,
- drive means for driving said trocar/cannula axially on said spine toward said terminal end, thereby moving said trocar/cannula from an initial position to a final position where said trocar/cannula is inserted through said wall of an anatomical cavity of a patient, said apparatus further comprising (a) an anchor pad which has a base securable to the outer surface of said anatomical wall and a body part adapted to be engaged and pulled generally perpendicularly with respect to said base, and (b) engaging means near said terminal end of said spine for engaging said body part of said anchor pad, whereby said apparatus when its engaging means is engaged to an anchor pad and pulled in its proximal direction may pull said anatomical wall outward while a trocar/cannula assembly is being inserted by said apparatus through said wall in the terminal direction of the spine.
Dependencies are inferred from the claim text.