Percutaneous endoscopic gastrostomy device
First Claim
1. A catheter insertable into a passage through a wall using a rod having a tip, said catheter comprising:
- a resilient tube having a distal end, a central axis and a proximal end;
a pair of resilient diametrically opposed, oppositely extending wings connected about the distal end; and
a pocket in at least one of said wings, said pocket being spaced radially outward from the central axis of said tube and being adapted to receive the tip of the rod, whereby the pair of wings may be urged to a position collateral with the tube by inserting the tip in the pocket and orienting the rod collateral with the tube.
2 Assignments
0 Petitions
Accused Products
Abstract
A gastrostomy device that may be placed either endoscopically or percutaneously is disclosed. The catheter is a resilient tube with a resilient T-bar at one end. One wing of the T is provided with a pocket for the tip of an obturator rod. By inserting the rod in the pocket and orienting the rod along the tube, the bar is forced to a position in-line with the tube. The catheter may then be easily inserted into an established stoma. When the rod is removed, the bar returns to its orthogonal position, thereby retaining the catheter within the stomach. The device may be provided with a cup-shaped bolster whose mouth engages the skin about, but not adjacent to, the stoma to hold the bar snugly against the stomach wall. By providing the bolster with air vents, healing of the stoma is encouraged. By providing the device with two diametrically opposed pockets in the T-bar, a forked obturator may be used to fold both wings into a forward oriented, small axial cross section configuration for insertion into a stoma.
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Citations
25 Claims
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1. A catheter insertable into a passage through a wall using a rod having a tip, said catheter comprising:
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a resilient tube having a distal end, a central axis and a proximal end; a pair of resilient diametrically opposed, oppositely extending wings connected about the distal end; and a pocket in at least one of said wings, said pocket being spaced radially outward from the central axis of said tube and being adapted to receive the tip of the rod, whereby the pair of wings may be urged to a position collateral with the tube by inserting the tip in the pocket and orienting the rod collateral with the tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A bolster for retaining a catheter in a passage through a wall, said bolster comprising a cupped resilient member having:
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a mouth; a central aperture, said aperture being expandable to slide about said catheter and being contractible to grip said catheter when released; and at least one vent hole between said aperture and said mouth, whereby the mouth of the member may be urged against the wall about the passage but spaced radially away therefrom and air may enter the vent hole and circulate within said member immediately adjacent said passage.
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12. A method for placement of a catheter into a passage using a rod having a tip, said catheter having a resilient tube having a proximal end and a distal end, a resilient retaining means connected about the distal end, and a pocket in said retaining means, said pocket being spaced radially outward from said tube and being adapted to receive the tip of the rod, the method comprising:
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inserting the tip of the rod into the pocket; orienting the rod collateral with the tube, thereby orienting the retaining means collateral with the tube; and inserting the retaining means along with a portion of the tube and rod into the passage.
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13. A catheter insertable into a passage through a wall using a rod having a two-pronged forked tip, said catheter comprising:
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a resilient tube having a distal end and a proximal end; a resilient retaining means connected about the distal end; and a pair of pockets in said retaining means, said pockets being spaced radially outward in opposite directions from said tube and being adapted to receive said prongs, whereby said retaining means be urged to a folded position generally collateral with the tube and extending beyond the distal end by inserting the prongs in respective pockets and orienting the rod collateral with the tube. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for placement of a catheter into a passage using a rod having a two-pronged forked tip, said catheter having a resilient tube having a proximal end and a distal end, a resilient retaining means connected about the distal end, and a pair of pockets in said retaining means, said pockets being spaced radially outward in opposite directions from said tube and being adapted to receive said prongs, the method comprising:
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inserting the prongs into respective pockets, thereby urging said retaining means to a folded position extending beyond the distal end; orienting the rod collateral with the tube, thereby orienting the retaining means collateral with the tube; and inserting the retaining means along with a portion of the tube and rod into the passage.
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Specification