Peritoneal fluid treatment apparatus, package and method
First Claim
1. A method for peritoneal fluid treatment in which:
- a portion of the skin surface about the peritoneum is sterilized using skin preparation means;
a local anesthetic is administered to said sterilized skin surface;
a short, small, shallow incision is made in the area of said sterilized skin;
an intravascular catheter of the type having a first cannula connected to a hub and removable placement means is inserted through said incision and into the peritoneal cavity;
the placement means of said intravascular catheter is removed and said first cannula left inserted;
flexible guide means are inserted into the peritoneal cavity through said first cannula;
said first cannula is removed leaving said guide means inserted;
a second cannula which is elongated and flexible is inserted into the peritoneal cavity over said guide means;
said guide means is removed; and
fluid operation means is connected to said second cannula by connector means adapted to one end of said cannula to effect fluid treatment operations.
1 Assignment
0 Petitions
Accused Products
Abstract
The cannula of a conventional intravascular catheter is placed into the peritoneal cavity through a small shallow incision in antiseptically prepared skin. The stylet or trocar of the conventional catheter is removed; and a stainless steel elongated flexible guide is inserted through the catheter'"'"'s cannula into the peritoneal cavity. The catheter'"'"'s cannula is removed and a flexible elongated cannula inserted into the cavity over the guide and secured in place with a suture. Fluid operation means is connected to the elongated cannula by connector means to permit fluid treatment after removal of the guide. Apparatus to effect peritoneal fluid treatment are placed in sterile openable sealed packages for storage and transport.
71 Citations
6 Claims
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1. A method for peritoneal fluid treatment in which:
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a portion of the skin surface about the peritoneum is sterilized using skin preparation means; a local anesthetic is administered to said sterilized skin surface; a short, small, shallow incision is made in the area of said sterilized skin; an intravascular catheter of the type having a first cannula connected to a hub and removable placement means is inserted through said incision and into the peritoneal cavity; the placement means of said intravascular catheter is removed and said first cannula left inserted; flexible guide means are inserted into the peritoneal cavity through said first cannula; said first cannula is removed leaving said guide means inserted; a second cannula which is elongated and flexible is inserted into the peritoneal cavity over said guide means; said guide means is removed; and fluid operation means is connected to said second cannula by connector means adapted to one end of said cannula to effect fluid treatment operations. - View Dependent Claims (2)
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3. A method for peritoneal fluid treatment in which:
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a portion of the skin surface about the peritoneum is sterilized using skin preparation means; a local anesthetic is administered to said sterilized skin surface; a nick-type incision is made in the area of said sterilized skin using incision means; a hollow first cannula is placed through said incision and just slightly into the peritoneal cavity; flexible guide means is inserted into the peritoneal cavity through said first cannula well into said cavity, said guide means being from about 20 to about 50 centimeters in length and from about 0.5 millimeters to about 2 millimeters in diameter for insertion into the peritoneal cavity through said first cannula, said guide means being sized in cross-section to fit within said first cannula and in length to be substantially longer than said first cannula, said guide means having a first end which is blunt for insertion into the peritoneal cavity, and said guide means being a stainless steel piano-wire-like wire made of a refractory metal having substantial flexibility from its first end to a point from about one-third to one-half the length of said guide means measured from said first end and thereafter said guide means has less flexibility along its length to its second end; said first cannula is removed leaving said guide meams inserted; a second cannula which is elongated and flexible is inserted into the peritoneal cavity over said guide means, said second cannula being a flexible plastic-like tube having a plurality of spaced apart apertures formed in it from its second end to a point about one-third to one-half along its length and secured in placed by suture means before performance of fluid operations in which fluids are introduced and thereafter extracted from the peritoneal cavity; said guide means is removed; and fluid operation means is connected to said second cannula by connector means adapted to one end of said cannula to effect fluid treatment operations. - View Dependent Claims (4, 5)
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6. A method for peritoneal fluid treatment in which:
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a portion of the skin surface about the peritoneum is prepared for incision making; a local anesthetic is selectively administered to the prepared skin surface; a small incision is made within the prepared skin surface area; a hollow first cannula is placed through the incision and just slightly into the peritoneal cavity; flexible guide means is inserted into the peritoneal cavity, said guide means being sized in cross-section to fit within said first cannula and in length to be substantially longer than said first cannula; said first cannula is removed leaving said guide means inserted; a second cannula which is elongated and flexible is inserted into the peritoneal cavity over the guide means; said second cannula is selectively secured in place using securing means; said guide means is removed; and fluid operation means is connected to said second cannula by connector means to effect fluid treatment operations.
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Specification