Endoscopic surgical access port and method
First Claim
1. Fluid sealing apparatus for operation with an endoscopic instrument at a surgical site, the apparatus comprising:
- a body having a central bore dimensioned to receive an endoscopic instrument therein, the bore extending through the body between distal and proximal ends thereof;
an element disposed about the body near one of the distal and proximal ends thereof for selectively expanding radially outwardly about the body to provide an external tissue seal; and
a fluid seal disposed about the body near the other of the distal and proximal ends having an aperture therethrough substantially aligned with the central bore through the body, and having an inner dimension resiliently and flexibly disposed to receive an endoscopic instrument therein in sliding fluid-sealing engagement therewith, wherein the diameter of the central bore is large enough to permit a range of angulation of an endoscopic instrument extending through the central bore,wherein the body includes a plurality of circumferential grooves for receiving and retaining both the element and the fluid seal.
3 Assignments
0 Petitions
Accused Products
Abstract
A sliding gas-tight seal on an access port promotes insufflation of an anatomical space formed in tissue at a surgical site only during insertion of an endoscopic instrument through the access port into the anatomical space, and promotes deflation of the inflated space upon removal of the endoscopic instrument from within the access port. An inflatable balloon disposed about the port near the distal end may be selectively expanded to seal and anchor the access port within an incision through which a surgical procedure with insufflation is to be performed. Multiple resilient seals may be attached to the body of the port, and an auxiliary resilient seal may be inserted within the aperture of a seal attached to the body to accommodate a wide range of endoscopic instruments of various exterior dimensions inserted through the seals.
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Citations
46 Claims
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1. Fluid sealing apparatus for operation with an endoscopic instrument at a surgical site, the apparatus comprising:
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a body having a central bore dimensioned to receive an endoscopic instrument therein, the bore extending through the body between distal and proximal ends thereof; an element disposed about the body near one of the distal and proximal ends thereof for selectively expanding radially outwardly about the body to provide an external tissue seal; and a fluid seal disposed about the body near the other of the distal and proximal ends having an aperture therethrough substantially aligned with the central bore through the body, and having an inner dimension resiliently and flexibly disposed to receive an endoscopic instrument therein in sliding fluid-sealing engagement therewith, wherein the diameter of the central bore is large enough to permit a range of angulation of an endoscopic instrument extending through the central bore, wherein the body includes a plurality of circumferential grooves for receiving and retaining both the element and the fluid seal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An endoscopic surgical procedure performed through an access port, the procedure comprising:
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forming an incision in tissue; dissecting tissue to form an anatomical space in tissue in communication with the incision; inserting the access port within the incision and anatomical space; laterally outwardly expanding the portion of the access port inserted within the incision to form fluid-sealing engagement with tissue about the incision; inserting an endoscopic instrument into the anatomical space through the access port; forming a fluid-tight seal in the access port in response to insertion of the endoscopic instrument in the access port; insufflating the anatomical space with fluid under pressure during formation of the fluid-tight seal; and disabling a fluid-tight seal within the access port to permit deflating the anatomical space inflated with fluid under pressure upon removal of an endoscopic instrument from within the access port. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. An access port kit including:
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a body having a central bore therethrough between distal and proximal ends thereof; an element disposed about the body near the distal end thereof for selectively expanding laterally outwardly from the body; a plurality of resilient fluid seals, each selectively attachable to the proximal end of the body for forming a fluid-tight seal with the body near the proximal end thereof, each of the fluid seals including a resilient aperture therethrough of selected different dimensions disposed to axially align with the central bore in the body in position attached to the proximal end of the body. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. An access port kit including:
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a body having a central bore therethrough between distal and proximal ends thereof; an element disposed about the body near the distal end thereof for selectively expanding laterally outwardly from the body; at least one resilient fluid seal for attachment in fluid-tight engagement with the body near the proximal end thereof, and including a resilient aperture therethrough of selected dimension to axially align with the central bore upon attachment to the body; and an auxiliary resilient fluid seal for insertion within the resilient aperture of the resilient fluid seal to form a fluid-tight seal therewith, including an aperture therein of smaller dimension than the resilient aperture of the resilient fluid seal for forming a sliding, substantially fluid-tight seal about a cylindrical member of sectional dimension larger than the aperture in the auxiliary resilient fluid seal and smaller than the aperture in the resilient fluid seal. - View Dependent Claims (30, 31, 32)
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33. Fluid sealing apparatus for operation with an endoscopic instrument at a surgical site, the apparatus comprising:
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a body having a central bore dimensioned to receive an endoscopic instrument therein, the bore extending through the body between distal and proximal ends thereof; an inflatable element disposed about the body near one of the distal and proximal ends thereof for selectively expanding radially outwardly about the body unobstructively of the central bore; a resilient fluid seal disposed external to the body near the other of the distal and proximal ends having an aperture therethrough substantially aligned with the central bore through the body, and having an inner dimension resiliently and flexibly disposed to receive an endoscopic instrument therein in sliding fluid-sealing engagement therewith; an inlet conduit communicating with the bore for supplying fluid under pressure thereto; and a valve disposed within the inlet conduit for selectively controlling flow of fluid under pressure therethrough, the valve including an actuator attached thereto for configuring the valve to permit fluid under pressure to flow therethrough in response to engagement of the actuator with an endoscopic instrument disposed within the bore.
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34. An access port kit including:
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a body having a central bore therethrough between distal and proximal ends thereof; an element disposed about the body near the distal end thereof for selectively expanding laterally outwardly from the body; a plurality of resilient fluid seals, each selectively attachable to the proximal end of the body for forming a fluid-tight seal with the body near the proximal end thereof, each of the fluid seals including a resilient aperture therethrough of selected different dimensions disposed to axially align with the central bore in the body in position attached to the proximal end of the body; and wherein the body includes an inlet conduit communicating with the central bore for supplying fluid under pressure thereto at a location therein intermediate attachment of a fluid seal to the body and the distal end thereof, and further including a valve disposed within the inlet conduit for selectively controlling flow therethrough of fluid under pressure in response to insertion of an endoscopic instrument within the resilient aperture of a fluid seal.
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35. Fluid seating apparatus for operation with an endoscopic instrument at a surgical site, the apparatus comprising:
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a body having a central bore dimensioned to receive an endoscopic instrument therein the bore extending through the body between distal and proximal ends thereof; an element disposed about the body near one of the distal and proximal ends thereof for selectively expanding radially outwardly about the body to provide an external tissue seal; and a fluid seal disposed about the body near the other of the distal and proximal ends having an aperture therethrough substantially aligned with the central bore through the body, and having an inner dimension resiliently and flexibly disposed to receive an endoscopic instrument therein in sliding fluid-sealing engagement therewith, wherein the diameter of the central bore is large enough to permit a range of angulation of an endoscopic instrument extending through the central bore, and wherein the fluid seal is generally annular and comprised of a resilient polymeric material the fluid seal including an outer perimeter adapted to couple to the other of the distal and proximal ends of the body, and the aperture being defined by a diaphragm extending inwardly from the outer perimeter and formed of a portion of the polymeric material that is thinner-walled than the outer perimeter for providing an effective fluid-seal around an endoscope received therein. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification