Dual-type catheter connection system
First Claim
1. A catheter connection system for effecting a mechanical joinder between a medical device and a selected catheter chosen from either a first catheter or a second catheter, the first catheter being made from a first material and the second catheter being made from a second material, the second material being less pliant than the first material, the selected catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
- (a) a rigid stem attached at a proximal end thereof to the medical device, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween;
(b) attachment means on said exterior surface of said stem for engaging the interior surface of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter, and for enabling locking of the selected catheter on said stem; and
(c) securing means operative when said distal end of said stem is received in the lumen of the selected catheter for radially, inwardly compressing a portion of the body wall of the selected catheter against a portion of said attachment means on said stem, and for interacting with said attachment means to preclude unintentional disengagement of the selected catheter from said stem, said securing means comprising a set of fastening assemblies, individual of said fastening assemblies corresponding to the first catheter and the second catheter.
2 Assignments
0 Petitions
Accused Products
Abstract
A catheter connection system is defined by a rigid, tubular stem attached at a proximal end thereof to a medical device. The stem has a plurality of comparably configured engagement barbs encircling and radially, outwardly extending on an exterior surface of the stem. A locking barb also encircles and radially, outwardly extends on the surface of the stem between the medical device and the engagement barbs. A rigid first locking sleeve is provided for inwardly compressing a portion of a body wall of a silicone catheter against the locking barb on the stem when the stem is received in the lumen of the silicone catheter to create a mechanical joinder and liquid-tight seal between the silicone catheter and the stem. In the alternative, a compression sleeve housed within a rigid second locking sleeve is provided for compressing a body wall of a polyurethane catheter against the engagement barbs on the stem to create a mechanical joinder and liquid-tight seal between the polyurethane catheter and the stem.
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Citations
119 Claims
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1. A catheter connection system for effecting a mechanical joinder between a medical device and a selected catheter chosen from either a first catheter or a second catheter, the first catheter being made from a first material and the second catheter being made from a second material, the second material being less pliant than the first material, the selected catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
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(a) a rigid stem attached at a proximal end thereof to the medical device, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween; (b) attachment means on said exterior surface of said stem for engaging the interior surface of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter, and for enabling locking of the selected catheter on said stem; and (c) securing means operative when said distal end of said stem is received in the lumen of the selected catheter for radially, inwardly compressing a portion of the body wall of the selected catheter against a portion of said attachment means on said stem, and for interacting with said attachment means to preclude unintentional disengagement of the selected catheter from said stem, said securing means comprising a set of fastening assemblies, individual of said fastening assemblies corresponding to the first catheter and the second catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A catheter connection system for effecting a fluid tight coupling and a mechanical joinder between a medical device that accommodates a fluid flow and a selected catheter chosen from either a first catheter or a second catheter, the first catheter being made from a first material and the second catheter being made from a second material, the second material being less pliant than the first material, the selected catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
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(a) a rigid, tubular stem attached at a proximal end thereof in fluid communication to the medical device, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween; (b) attachment means on said exterior surface of said stem for engaging the interior surface of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter, and for enabling locking of the selected catheter on said stem, said attachment means comprising; (i) an engagement barb radially, outwardly extending on said exterior surface of said stem and encircling said stem, said engagement barb having a maximum outer diameter so sized as to fit within the lumen of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter; and (ii) a locking barb radially, outwardly extending on said exterior surface of said stem and encircling said stem between said engagement barb and the medical device, said locking barb having a maximum outer diameter that is larger than said maximum outer diameter of said engagement barb; and (c) securing means operative when said distal end of said stem is received in the lumen of the selected catheter for radially, inwardly compressing a portion of the body wall of the selected catheter against a portion of said attachment means on said stem, and for interacting with said attachment means to preclude unintentional disengagement of the selected catheter from said stem. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A catheter connection system for effecting a fluid tight coupling and a mechanical joinder between a medical device that accommodates a fluid flow and a selected catheter chosen from either a silicone catheter or a polyurethane catheter, the selected catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
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(a) a rigid, tubular stem attached at a proximal end thereof in fluid communication to the medical device, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween; (b) attachment means on said exterior surface of said stem for engaging the interior surface of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter, and for enabling locking of the selected catheter on said stem; and (c) a pair of locking sleeves comprising a first locking sleeve corresponding to the silicone catheter and a second locking sleeve corresponding to the polyurethane catheter, each of said first locking sleeve and said second locking sleeves having a distal end, a proximal end, an interior surface defining a passageway longitudinally extending through said sleeve, and an annular securement ring radially inwardly extending from said interior surface of said locking sleeve, said interior surface of said locking sleeve radially inwardly compressing a portion of the body wall of the selected catheter against a portion of said attachment means on said stem, when said stem is received in the lumen of the selected catheter and the selected catheter with said stem received therein is positioned within said passageway of said locking sleeve. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A catheter connection system for effecting a fluid tight coupling and a mechanical joinder between a medical device that accommodates a fluid flow and a selected catheter chosen from either a silicone catheter or a polyurethane catheter, the selected catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
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(a) a rigid, tubular stem attached at a proximal end thereof in fluid communication to the medical device, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween; (b) a plurality of comparably configured engagement barbs radially, outwardly extending on said exterior surface of said stem and encircling said stem, said engagement barbs having a maximum outer diameter so sized as to fit within the lumen of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter; (c) a locking barb radially, outwardly extending on said exterior surface of said stem and encircling said stem between said engagement barbs and the medical device, said locking barb having a maximum outer diameter that is larger than said maximum outer diameter of said engagement barbs; and (d) a set of fastening assemblies, individual of said fastening assemblies corresponding to each one of the polyurethane catheter and the silicone catheter, said set of fastening assemblies comprising; (i) a first fastening assembly corresponding to the silicone catheter, said first fastening assembly comprising; (A) a first locking sleeve having a proximal end, a distal end, and an interior surface defining a passageway longitudinally extending through said first locking sleeve, said interior surface of said first locking sleeve radially, inwardly compressing a portion of the body wall of the silicone catheter against said locking barb on said stem when said stem is received in the lumen of the silicone catheter and the silicone catheter with said stem received therein is positioned within said passageway of said first locking sleeve; and (B) an annular compression ring extending inwardly from said interior surface of said first locking sleeve to interact with said locking barb; and (ii) a second fastening assembly corresponding to the polyurethane catheter, said second fastening assembly comprising; (A) a second locking sleeve having a distal end, a proximal end, and an interior surface defining a passageway extending through said second locking sleeve; (B) a pliable compression sleeve longitudinally disposed within said passageway of said second locking sleeve and having an interior surface defining a passageway longitudinally extending therethrough, said interior surface of said compression sleeve radially, inwardly compressing a portion of the body wall of the polyurethane catheter against said engagement barbs on said stem when said stem is received in the lumen of the polyurethane catheter and the polyurethane catheter with said stem received therein is positioned within said passageway of said compression sleeve; and (C) an opposing set of radially displacable, resilient C-shaped clamps positioned at said proximal end of said second locking sleeve to grasp said locking barb. - View Dependent Claims (73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97)
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98. A catheter connection system for mechanically joining a medical tunneling instrument to a selected catheter chosen from either a silicone catheter or a polyurethane catheter, the selected catheter having a body wall with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
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(a) a rigid, tubular stem attached at a proximal end thereof to the tunneling instrument, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween; (b) attachment means on said exterior surface of said stem for engaging the interior surface of the selected catheter when said distal end of said stem is received in the lumen of the selected catheter, and for enabling locking of the selected catheter on said stem; and (c) securing means operative when said distal end of said stem is received in the lumen of the selected catheter for radially, inwardly compressing a portion of the body wall of the selected catheter against a portion of said attachment means on said stem, and for interacting with said attachment means to preclude unintentional disengagement of the selected catheter from said stem, said securing means comprising a set of fastening assemblies, individual of said fastening assemblies corresponding to the silicone catheter and the polyurethane catheter. - View Dependent Claims (99, 100, 101, 102, 103)
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104. A catheter connection system for effecting a fluid tight coupling and a mechanical joinder between a medical device that accommodates a fluid flow and a polyurethane catheter, the polyurethane catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said connection system comprising:
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(a) a rigid, tubular stem attached at a proximal end thereof in fluid communication to the medical device, said stem having a free distal end opposite said proximal end and an exterior surface extending therebetween; (b) an engagement barb radially, outwardly extending on said exterior surface of said stem and encircling said stem, said engagement barb having a maximum outer diameter so sized as to fit within the lumen of the polyurethane catheter when said distal end of said stem is received in the lumen of the polyurethane catheter; (c) a locking barb radially, outwardly extending on said exterior surface of said stem and encircling said stem between said engagement barb and the medical device, said locking barb having a maximum outer diameter that is larger than said maximum outer diameter of said engagement barb; and (d) a fastening assembly comprising; (i) a locking sleeve having a distal end, a proximal end, and an interior surface defining a passageway extending therebetween; (ii) a pliable compression sleeve longitudinally disposed within said passageway of said locking sleeve and having an interior surface defining a passageway longitudinally extending therethrough, said interior surface of said compression sleeve radially, inwardly compressing a portion of the body wall of the polyurethane catheter against said engagement barb on said stem when said stem is received in the lumen of the polyurethane catheter and the polyurethane catheter with said stem received therein is positioned within said passageway of said compressive sleeve; and (iii) an opposing set of radially displacable, resilient C-shaped clamps positioned at said proximal end of said second locking sleeve to grasp said locking barb. - View Dependent Claims (105, 106, 107, 108, 109, 110, 111)
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112. A method for effecting a mechanical joinder between a medical device and a catheter, the method comprising the steps of:
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(a) choosing a selected catheter from either a silicone catheter or a polyurethane catheter, said selected catheter having a body wall with an exterior surface and with an interior surface defining a longitudinally extending, fluid flow lumen, said lumen being sized to receive a rigid, tubular stem attached at a proximal end thereof to the medical device; (b) positioning said tubular stem in said lumen of said selected catheter, said tubular stem having a free distal end opposite said proximal end and an exterior surface extending therebetween, said stem further comprising an attachment means on said exterior surface of said stem for engaging said interior surface of said selected catheter when said distal end of said stem is received in said lumen of said selected catheter, and for enabling locking of said selected catheter on said stem; (c) picking a selected fastening assembly from a pair of fastening assemblies including a first fastening assembly corresponding to said silicone catheter and a second fastening assembly corresponding to said polyurethane catheter, said selected fastening assembly being chosen to correspond to said selected catheter and comprising a locking sleeve having a distal end, a proximal end, an interior surface defining a passageway longitudinally extending through said sleeve, and an annular securement ring radially inwardly extending from said interior surface of said locking sleeve; and (d) placing said stem positioned in said lumen of said selected catheter within said passageway of said locking sleeve, said interior surface of said locking sleeve radially, inwardly compressing a portion of said body wall of said selected catheter against a portion of said attachment means on said stem. - View Dependent Claims (113, 114, 115, 116, 117, 118, 119)
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Specification