Trans Urinary Bladder Access Device and Method
First Claim
1. A device for trans-urinary bladder access of an anatomical cavity comprising:
- an elongated member having distal and proximal end portions with a lumen extending longitudinally therein, said lumen adapted to receive an endoscope or obturator, said distal end portion of the elongated member configured to penetrate a wall of a bladder, a hollow piercing member having a sidewall, a distal end region of said member having multiple openings in said sidewall and the distal end of the member configured to penetrate the wall of the bladder.
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Abstract
The present invention relates to a device and method for accessing an anatomical cavity using a natural body orifice where penetration of a tissue wall is required. In particular, an objective of this invention is to provide a system for delivering an access device to the abdominal cavity through the bladder. An access device is described suitable for introduction into the bladder, at least partially disinfecting the access site, accessing the abdominal cavity through a wall of the bladder and insufflating the bladder and the abdominal cavity as required. The access device may be used to deliver an endoscope or other diagnostic or therapeutic instruments into the abdominal cavity.
24 Citations
25 Claims
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1. A device for trans-urinary bladder access of an anatomical cavity comprising:
an elongated member having distal and proximal end portions with a lumen extending longitudinally therein, said lumen adapted to receive an endoscope or obturator, said distal end portion of the elongated member configured to penetrate a wall of a bladder, a hollow piercing member having a sidewall, a distal end region of said member having multiple openings in said sidewall and the distal end of the member configured to penetrate the wall of the bladder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for trans-urinary bladder access of an abdominal cavity comprising:
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an elongated member having distal and proximal end portions with a lumen extending longitudinally therein, a first expandable member positioned at the distal end portion, said first expandable member adapted to expand radially from a non-expanded condition to an expanded condition having a cross sectional area larger than said elongated member, the distal end portion adapted to penetrate a wall of a bladder, and the depth of the penetration of the distal end portion of the elongated member into the cavity is controlled by the distance between a distal edge of the first expandable member in the expanded condition and the distal end portion of the elongated member. - View Dependent Claims (11, 12, 13, 14)
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15. A method of performing trans-urinary bladder access of an abdominal cavity comprising:
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positioning a tip of a hollow elongated member through a urethra and against a wall of a bladder, the elongated member adapted to receive an endoscope, disinfecting at least a portion of the bladder by infusing a disinfecting fluid through the hollow portion of the elongated member, and puncturing the wall with a hollow piercing member and advancing the elongated member through the wall and into the cavity. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of sterilizing an anatomical cavity access site having a wall, said wall having an outer region comprising:
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positioning a distal end of a hollow elongated member against a portion of the outer region, the elongated member having a piston-like obturator moveably disposed within such that a distal end of the obturator lies proximal of the distal end of a hollow elongated member thus forming an open space, said obturator having a sealing member adapted to provide a fluid seal between the obturator and the inner diameter of the elongated member, infusing a fluid for sterilizing tissue into said open space and advancing the piston-like obturator toward the distal end of the elongated member to reduce the open space and force the sterilizing fluid through the distal end of the elongated member and into and around a portion of the outer region of the wall. - View Dependent Claims (25)
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Specification