Trocar assembly with pneumatic sealing
First Claim
1. A trocar for creating a pneumatic seal during a minimally-invasive surgical procedure, comprising:
- an elongated body having a lumen extending therethrough, the proximal end portion of the body defining a housing;
a fluid supply plenum defined in the housing, adapted and configured to deliver pressurized insufflation fluid to a nozzle in fluid communication therewith, the nozzle configured and adapted for directing pressurized fluid into the lumen and creating a pneumatic seal relative to a patient having a portion of the lumen inserted therewithin; and
a fluid return plenum defined in the housing, spaced from the fluid supply plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid, the fluid return plenum including a plurality of axially and radially oriented elongate vanes configured and adapted to permit spent insufflation fluid to proceed between the vanes and direct spent insufflation fluid back to the fluid return plenum.
2 Assignments
0 Petitions
Accused Products
Abstract
A trocar assembly for creating a pneumatic seal during a minimally-invasive surgical procedure. The trocar assembly including an elongated body having a lumen extending therethrough. The proximal end portion of the body defining a housing. A fluid supply plenum is defined in the housing configured to deliver pressurized insufflation fluid to a nozzle. The nozzle configured for directing pressurized fluid into the lumen and creating a pneumatic seal. A fluid return plenum is defined in the housing configured to collect spent insufflation fluid from as patient'"'"'s abdominal cavity. The fluid return plenum including a plurality of axially and radially oriented elongate vanes configured to permit spent insufflation fluid to proceed between the vanes and direct spent insufflation fluid back to the fluid return plenum.
178 Citations
26 Claims
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1. A trocar for creating a pneumatic seal during a minimally-invasive surgical procedure, comprising:
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an elongated body having a lumen extending therethrough, the proximal end portion of the body defining a housing; a fluid supply plenum defined in the housing, adapted and configured to deliver pressurized insufflation fluid to a nozzle in fluid communication therewith, the nozzle configured and adapted for directing pressurized fluid into the lumen and creating a pneumatic seal relative to a patient having a portion of the lumen inserted therewithin; and a fluid return plenum defined in the housing, spaced from the fluid supply plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid, the fluid return plenum including a plurality of axially and radially oriented elongate vanes configured and adapted to permit spent insufflation fluid to proceed between the vanes and direct spent insufflation fluid back to the fluid return plenum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A trocar for creating a pneumatic seal during a minimally-invasive surgical procedure, comprising:
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an elongated body having a lumen extending therethrough, the proximal end portion of the body defining a housing; a fluid supply plenum defined in the housing, adapted and configured to deliver pressurized insufflation fluid to a nozzle in fluid communication therewith, the nozzle configured and adapted for directing pressurized fluid into the lumen and creating a pneumatic seal relative to a patient having a portion of the lumen inserted therewithin the nozzle of the fluid supply plenum is defined by an annular tube component nested with an annular ring jet member to form one or more fluid conduits wherein a locking assembly is provided for nesting, and temporarily locking, the annular tube component at a spaced distance from the annular ring jet member; a fluid return plenum defined in the housing, spaced from the fluid supply plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid; and a pressure sensing chamber defined in a distal end portion of the housing, distal to the fluid return plenum, adapted and configured to be placed in fluid communication with a patient'"'"'s abdominal cavity. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A trocar for creating a pneumatic seal during a minimally-invasive surgical procedure, comprising:
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an elongated body having a lumen extending therethrough, the proximal end portion of the body defining a housing; a fluid supply plenum defined in the housing, adapted and configured to deliver pressurized insufflation fluid to a nozzle in fluid communication therewith, the nozzle configured and adapted for directing pressurized fluid into the lumen and creating a pneumatic seal relative to a patient having a portion of the lumen inserted therewithin, the nozzle of the fluid supply plenum is defined by an annular tube component nested with an annular ring jet member to form one or more fluid conduits wherein a locking assembly is provided for nesting, and temporarily locking, the annular tube component at a spaced distance from the annular ring jet member; and a fluid return plenum defined in the housing, spaced from the fluid supply plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid, the fluid return plenum including a plurality of axially and radially oriented elongate vanes configured and adapted to permit spent insufflation fluid to proceed between the vanes and direct spent insufflation fluid back to the fluid return plenum.
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24. A trocar for use in a minimally-invasive surgical procedure, comprising:
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an elongated body, the proximal end portion of the body defining a housing; a first insert having a substantially tubular configuration extending through the body; a second insert arranged in the housing proximal the first insert, and having a substantially annular configuration and a plurality of axially and radially oriented elongate vanes permitting spent insufflation fluid to proceed between the vanes for allowing passage of spent insufflation fluid to pass therethrough; a third insert arranged in the housing proximal the second insert, and having a substantially annular configuration, the housing, first, second and third inserts defining respective walls of a fluid return plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid; and a fourth insert arranged in the housing proximal the third insert, having a substantially annular configuration and substantially tubular member extending distally therefrom, a nozzle being defined between the substantially tubular member and an central portion of the third insert, the housing and third and fourth inserts defining a fluid supply plenum in fluid communication with the nozzle.
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25. A trocar for use in a minimally-invasive surgical procedure, comprising:
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an elongated body, the proximal end portion of the body defining a housing; a first insert having a substantially tubular configuration extending through the body; a second insert arranged in the housing proximal the first insert, and having a substantially annular configuration and configured to permit spent insufflation fluid to proceed therethrough; a third insert arranged in the housing proximal the second insert, and having a substantially annular configuration, the housing, first, second and third inserts defining respective walls of a fluid return plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid; and a fourth insert arranged in the housing proximal the third insert, having a substantially annular configuration and substantially tubular member extending distally therefrom, a nozzle being defined between the substantially tubular member and an central portion of the third insert wherein a locking assembly is provided for nesting, and temporarily locking, the third insert at a spaced distance from the fourth insert whereby the housing and third and fourth inserts define a fluid supply plenum in fluid communication with the nozzle.
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26. A trocar for use in a minimally-invasive surgical procedure, comprising:
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an elongated body, the proximal end portion of the body defining a housing; a first insert having a substantially tubular configuration extending through the body; a second insert arranged in the housing proximal the first insert, and having a substantially annular configuration and a plurality of axially and radially oriented elongate vanes permitting spent insufflation fluid to proceed between the vanes for allowing passage of spent insufflation fluid to pass therethrough; a third insert arranged in the housing proximal the second insert, and having a substantially annular configuration, the housing, first, second and third inserts defining respective walls of a fluid return plenum, the fluid return plenum being adapted and configured to collect spent insufflation fluid; and a fourth insert arranged in the housing proximal the third insert, having a substantially annular configuration and substantially tubular member extending distally therefrom, a nozzle being defined between the substantially tubular member and an central portion of the third insert wherein a locking assembly is provided for nesting, and temporarily locking, the third insert at a spaced distance from the fourth insert whereby the housing and third and fourth inserts define a fluid supply plenum in fluid communication with the nozzle.
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Specification