Rotatably actuated constricting catheter valve
First Claim
1. A valve for effecting selective closure of a catheter lumen to control fluid flow through said catheter lumen once a catheter is inserted into a patient'"'"'s body, said valve comprising:
- means for defining a valve body with an inside opening therethrough which communicates with said catheter lumen, said means for defining said valve body comprising hub means for joining said valve body to said catheter, and cap means for rotatably joining to said hub means, and the hub means and cap means each comprising a clamping means; and
means for constricting said inside opening of said valve body as said cap means is rotated relative to said hub means and said means for constricting having one end wrapped around and clamped by the clamping means of the hub means, and having another end wrapped around and clamped by the clamping means of the cap means, so as to provide an unobstructed lining along said inside opening of said valve body, such that when said cap means is rotated to a first position said means for constricting does not obstruct said inside opening, and when said cap means is rotated to a second position, said means for constricting effects closure of said inside opening of said valve body.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for a catheter valve which can be used to effect selective closure of a catheter lumen in order to control fluid flow through the catheter lumen once the catheter is inserted into a patient'"'"'s body. The apparatus has a valve body with a hub which is joined to the catheter, and a rotatable cap which is joined to the hub. An elastomeric sleeve is positioned in an opening through the interior of the valve body. One end of the elastomeric sleeve is joined to the rotatable cap while the other end of the elastomeric sleeve is joined to the hub. When the cap is rotated in one direction to a first position, the circular opening of the sleeve is fully opened. When the cap is rotated in the opposite direction to a second position, the elastomeric sleeve is twisted intermediate the two ends so as to ultimately effect closure of the circular opening. Due to the elastomeric properties of the sleeve, the circular opening through the sleeve tends to be uniformly constricted as the cap is rotated to effect closure.
315 Citations
24 Claims
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1. A valve for effecting selective closure of a catheter lumen to control fluid flow through said catheter lumen once a catheter is inserted into a patient'"'"'s body, said valve comprising:
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means for defining a valve body with an inside opening therethrough which communicates with said catheter lumen, said means for defining said valve body comprising hub means for joining said valve body to said catheter, and cap means for rotatably joining to said hub means, and the hub means and cap means each comprising a clamping means; and means for constricting said inside opening of said valve body as said cap means is rotated relative to said hub means and said means for constricting having one end wrapped around and clamped by the clamping means of the hub means, and having another end wrapped around and clamped by the clamping means of the cap means, so as to provide an unobstructed lining along said inside opening of said valve body, such that when said cap means is rotated to a first position said means for constricting does not obstruct said inside opening, and when said cap means is rotated to a second position, said means for constricting effects closure of said inside opening of said valve body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A valve for controlling fluid flow through a catheter connected to said valve when said catheter is inserted into a blood vessel, said valve comprising:
a valve body having an inside opening, said valve body comprised of a hub means for joining said valve to said catheter and a cap means for rotatably joining to said hub means, said hub means and said cap means each comprising a means for clamping an end of a cylindrical elastomeric sleeve, said cylindrical, elastomeric sleeve having one end wrapped around one of said clamping means and clamped to said hub means, and having another end wrapped around the other said clamping means and clamped to said cap means, such that when said cap means is rotated relative to said hub means to a first position, said cylndrical elastomeric sleeve is untwisted and open and provides an uninterrupted, seamless lining along said inside opening of said valve body, and when said cap means is rotated relative to said hub means to a second position, said cylindrical elastomeric sleeve is twisted to effect closure of said opening of said valve body. - View Dependent Claims (9, 10, 11, 12)
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13. A valve for effecting selective closure of a catheter lumen to control fluid flow through said catheter lumen once a catheter is inserted into a patient'"'"'s body, said valve comprising:
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means for defining a valve body with an inside opening therethrough which communicates with said catheter lumen, said means for defining said valve body comprising hub means for joining said valve body to said catheter lumen, and cap means for rotatably joining to said hub means said catheter lumen, and the hub means and cap means each comprising a clamping means; means for constricting said opening of said valve body as said cap means is rotated relative to said hub means, such that when said cap means is rotated to a first position said means for constricting does not obstruct said opening and said means for constricting having one end wrapped around and clamped by the clamping means of the hub means, and having another end wrapped around and clamped by the clamping means of the cap means, so as to provide an unobstructed lining along said inside opening of said valve body, and when said valve is rotated to a second position, said means for constricting effects closure of said inside opening of said valve body; and stop means for limiting rotation of said cap means relative to said hub means so as to stop said cap means at said first position when said cap means is rotated in one direction, and so as to stop said cap means at said second position when said cap means is rotated in an opposite direction. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A valve for effecting selective closure of a catheter lumen and about a tube inserted therethrough to prevent escape of body fluid through said catheter lumen when said catheter is inserted into a patient'"'"'s body, said valve comprising:
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means for defining a valve body with an circular opening through the inside of said valve body and which communicates with said catheter lumen, said means for defining said valve body comprising hub means for joining said valve body to said catheter lumen, and cap means for rotatably joining to said hub means, and the hub means and cap means each comprising a clamping means; and means for variably constricting said circular opening of said valve body as said cap means is rotated relative to said hub means, said means for variably constricting having one end wrapped around and clamped by the clamping means of the hub means, and having another end wrapped around and clamped by the clamping means of the cap means so as to provide an unobstructed lining along said opening along the inside of said valve body, such that when said means is rotated to a first position said means for variably constricting said circular opening seamlessly lines the inside of said valve body but does not obstruct said circular opening so that said tube is freely slidable through said circular opening and the lumen of said catheter, and such that when said valve body is rotated to a second position said means for variably constricting said circular opening uniformly closes around said tube and frictionally engages said tube to prevent escape of body fluid through said catheter lumen and around said tube through said circular opening of said valve body. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification