Implantable catheter
First Claim
1. An implantable catheter for peritoneal access, said catheter comprising:
- an elongated tubular member one portion of which is adapted to extend into the peritoneal cavity of the body of a user to an end within said cavity, and a second portion which is adapted to be external of the body of a said user; and
a terminating member having first and second walls each of which is spaced with respect to the other at least at central and outer portions to thereby form a passage therebetween with said passage being maintained by reinforcing means engaging each of said first and second walls, said outer portions having access means for opening said passage externally of said catheter, and said central portion of said first wall having means defining an opening therein for engaging said end of said one portion of said tubular member so that said passage established between said first and second walls is in communication with the interior of said tubular member with said passage being substantially normal with respect to the axis of said end of said tubular member when said tubular member is in engagement with said means defining said opening in said first wall.
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Accused Products
Abstract
An implantable catheter is disclosed that is particularly useful as a peritoneal access device. The catheter includes an elongated, flexible tube, one portion of which is adapted to extend into the body of a user with a second portion external to the body of the user. The end of the one portion of the tube within the body has connected thereto a flexible terminating member comprised of a pair of spaced apart sheets extending outwardly of the periphery of the tube in a direction substantially normal to the axis of the end portion of the tube with the spaced sheets forming a passage therebetween communicating with the interior of the tube through a central opening in one of the sheets so that access to the tube is through the passage formed by the spaced sheets. In the disclosed embodiments, the sheets are either substantially flat discs held in spaced relationship with respect to one another by means of a plurality of columns extending between the discs or are apertured, curved sheets with opposite edges connected together. Columns of reduced diameter are also disclosed to enable folding of the discs to facilitate insertion into the body of a user.
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Citations
19 Claims
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1. An implantable catheter for peritoneal access, said catheter comprising:
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an elongated tubular member one portion of which is adapted to extend into the peritoneal cavity of the body of a user to an end within said cavity, and a second portion which is adapted to be external of the body of a said user; and a terminating member having first and second walls each of which is spaced with respect to the other at least at central and outer portions to thereby form a passage therebetween with said passage being maintained by reinforcing means engaging each of said first and second walls, said outer portions having access means for opening said passage externally of said catheter, and said central portion of said first wall having means defining an opening therein for engaging said end of said one portion of said tubular member so that said passage established between said first and second walls is in communication with the interior of said tubular member with said passage being substantially normal with respect to the axis of said end of said tubular member when said tubular member is in engagement with said means defining said opening in said first wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable catheter for peritoneal access, said catheter comprising:
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an elongated, flexible tube one portion of which is adapted to extend through the abdominal wall and peritoneum of a user and having an end within the peritoneal cavity of said user when said one portion is positioned to extend through said abdominal wall and said peritoneum of user; and a terminating member including a pair of sustantially flat discs maintained in spaced relationship with respect to one another by a plurality of columns extending therebetween and engaging both of said discs, with one of said discs having an opening therein and being connected with said end of said elongated tube thereat so that the interior of said tube is in communication with the area between said discs whereby the interior of said tube is open through said end to the exterior of said catheter through said area between said discs. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An improved catheter for peritoneal access, said catheter comprising:
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an elongated tube one portion of which is adapted to extend through the abodominal wall and peritoneum of a user and having an end within the peritoneal cavity of said user when said one portion is positioned to extend through said abdominal wall and said peritoneum of said user; and a terminating member including a pair of curved rectangular sheets joined along opposite edges to form a hollow area therebetween, said sheets having spaced apertures therein, with one of said sheets having an opening therein and being connected with said end of said elongated tube thereat so that said hollow area formed by said sheets is in communication with the interior of said tube whereby the interior of said tube is open to the exterior of said catheter through said hollow area, and each of said sheets having reinforcing means engaging said sheets. - View Dependent Claims (19)
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Specification