US4425113A — Flow control mechanism for a plasmaspheresis asse…

Claim 1

Independent Claim 114 words

A flow control device for a flexible conduit comprising a first member, means for releasably securing a length of flexible conduit on said first member, a second member including a housing and a platen movably mounted on said housing, means for mounting said second member housing in an operative position on said first member, in which position the secured conduit is disposed between said first member and said movable platen of said second member, and means on said movable platen operative, in response to displacement of said movable platen when said second member housing is in said operative position, for selectively pinching close the secured conduit between said movable platen and said first member.

Claim 2

Dependent Claim 114 words

A flow control device for a flexible conduit comprising a first member, means for releasably securing a length of flexible conduit on said first member, a second member including a housing and a platen movably mounted on said housing, means for mounting said second member housing in an operative position on said first member, in which position the secured conduit is disposed between said first member and said movable platen of said second member, and means on said movable platen operative, in response to displacement of said movable platen when said second member housing is in said operative position, for selectively pinching close the secured conduit between said movable platen and said first member.

Claim 3

Dependent Claim 26 words

A flow control device according to claim 1 wherein said movable platen of said second member is operative for movement transversely of said second member housing.

Claim 4

Dependent Claim 37 words

A flow control device according to claim 2 wherein the path of movement of said movable platen extends generally transversely of the axis of the secured conduit when said second member housing is in said operative position.

Claim 5

Dependent Claim 26 words

A flow control device according to claim 1 wherein said movable platen of said second member is operative for rotation relative to said second member housing.

Claim 6

Dependent Claim 73 words

A flow control device according to claim 1 or 2 or 4 wherein said conduit pinching means includes cam means operative, when said movable portion is in a first platen, for engaging the secured conduit to pinch the conduit between said cam means and said first member, thereby pinching close the secured conduit, and, when said movable platen is moved from said first position toward a second position, for disengaging the secured conduit.

Claim 7

Dependent Claim 54 words

A flow control device according to claim 5 wherein said mounting means includes means attaching said second member on said first member housing for movement between an inoperative position, in which said movable platen generally faces away from the secured conduit, and said operative position, in which said movable platen faces the secured conduit.

Claim 8

Dependent Claim 34 words

A flow control device according to claim 6 wherein said attachment means includes a hinge attaching said second member on said first member housing for movement between said inoperative position and said operative position.

Claim 9

Dependent Claim 54 words

A flow control device according to claim 1 or 2 or 4 wherein said conduit pinching means includes cam means on said platen operative, in response to movement of said platen relative to said housing, for selectively engaging the secured conduit between said cam means and said first member to pinch close the conduit.

Claim 10

Dependent Claim 67 words

A flow control device according to claim 8 wherein said platen is movable on said housing between spaced first and second positions, wherein said cam means is operative for engaging the secured conduit in response to movement of said platen toward one of said first and second positions and for disengaging the conduit in response to movement of said platen toward the other one of said positions.

Claim 11

Dependent Claim 87 words

A flow control device according to claim 1 wherein said means for releasably securing a length of conduit on said first member includes means for releasably securing at least two lengths of flexible conduit on said first member, and wherein said conduit pinching means on said movable platen is operative, in response to movement of said movable platen when said second member housing is in said operative position, for selective pinching close at least one of the secured conduits between said movable platen and said first member.

Claim 12

Dependent Claim 29 words

A flow control device according to claim 10 wherein said conduit pinching means is operative for pinching close more than one of the secured conduits at the same time.

Claim 13

Dependent Claim 33 words

A flow control device according to claim 10 or 11 wherein said conduit pinching means is operative for pinching close at least one of the secured conduits without pinching close other secured conduits.

Claim 14

Dependent Claim 27 words

A flow control device according to claim 12 wherein said movable platen of said second member housing is operative for movement transversely of said second member housing.

Claim 15

Dependent Claim 39 words

A flow control device according to claim 13 wherein the path of movement of said movable platen extends generally transversely of the axis of some of the secured conduits when said second member housing is in said operative position.

Claim 16

Dependent Claim 26 words

A flow control device according to claim 12 wherein said movable platen of said second member is operative for rotation relative to said second member housing.

Claim 17

Dependent Claim 89 words

A flow control device according to claim 12 wherein said movable platen of said second member housing is operative for movement between spaced first and second positions, and wherein said conduit pinching means includes cam means operative for engaging at least one of the secured conduits in response to movement of said movable platen toward one of said first and second positions, thereby pinching close the engaged conduit, and for subsequently disengaging the conduit in response to movement of said movable platen toward the other one of said positions.

Claim 18

Dependent Claim 54 words

A flow control device according to claim 12 wherein said mounting means includes means attaching said second member on said first member housing for movement between an inoperative position, in which said movable platen generally faces away from the secured conduits, and said operative position, in which said movable platen faces the secured conduits.

Claim 19

Dependent Claim 136 words

A flow control assembly for flexible fluid conduits comprising first means attachable to two or more flexible fluid conduits and operative for establishing flow communication between the attached conduits, and a flow control device comprising a first member, means for releasably securing on said first member said first means and the conduits attached thereto, a second member including a movable portion, means for mounting said second member on said first member, in which position the conduits which are attached to said first means are disposed between said first means and said movable portion, and means on said movable portion operative, in response to movement of said movable portion when said second member is in said operative position, for selectively pinching close at least one of the attached conduits between said movable portion and said first member.

Claim 20

Dependent Claim 136 words

A flow control assembly for flexible fluid conduits comprising first means attachable to two or more flexible fluid conduits and operative for establishing flow communication between the attached conduits, and a flow control device comprising a first member, means for releasably securing on said first member said first means and the conduits attached thereto, a second member including a movable portion, means for mounting said second member on said first member, in which position the conduits which are attached to said first means are disposed between said first means and said movable portion, and means on said movable portion operative, in response to movement of said movable portion when said second member is in said operative position, for selectively pinching close at least one of the attached conduits between said movable portion and said first member.

Claim 21

Dependent Claim 29 words

A flow control assembly according to claim 18 wherein said conduit pinching means is operative for pinching close more than one of the secured conduits at the same time.

Claim 22

Dependent Claim 33 words

A flow control assembly according to claim 18 or 19 wherein said conduit pinching means is operative for pinching close at least one of the secured conduits without pinching close other secured conduits.

Claim 23

Dependent Claim 29 words

A flow control assembly according to claim 20 wherein said movable portion of said second member is operative for movement transversely of the remaining portion of said second member.

Claim 24

Dependent Claim 38 words

A flow control assembly according to claim 20 wherein the path of movement of said movable portion extends generally transversely of the axis of some of the secured conduits when said second member is in said operative position.

Claim 25

Dependent Claim 28 words

A flow control assembly according to claim 20 wherein said movable portion of said second member is operative for rotation relative to the remaining portion said second member.

Claim 26

Dependent Claim 96 words

A flow control assembly according to claim 20 wherein said movable portion of said second member is operative for movement between spaced first and second positions, and wherein said conduit pinching means includes cam means operative for engaging at least one of the secured conduits between said cam means and said first member in response to movement of said movable portion toward one of said first and second positions, thereby pinching close the engaged conduit, and for subsequently disengaging the conduit in response to movement of said movable portion toward the other one of said positions.

Claim 27

Dependent Claim 53 words

A flow control assembly according to claim 20 wherein said mounting means includes means attaching said second member on said first member for movement between an inoperative position, in which said movable portion generally faces away from the secured conduits, and said operative position, in which said movable portion faces the secured conduit.

Claim 28

Dependent Claim 57 words

A flow control assembly according to claim 25 wherein said movable portion of said second member includes a platen, wherein the remaining portion of said second member includes a housing on which said platen is movably mounted, and wherein said mounting means attaches said housing on said first member for movement between said operative and inoperative positions.

Claim 29

Dependent Claim 52 words

A flow control assembly according to claim 26 wherein said conduit pinching means includes cam means on said platen operative, when said housing is in said operative position, for selectively pinching close at least one secured conduit between said cam means and said first member in response to movement of said platen.

Claim 30

Dependent Claim 86 words

A flow control assembly according to claim 27 wherein said platen is movable on said housing between spaced first and second positions, wherein said cam means is operative for engaging at least one of the secured conduits between said cam means and said first member in response to movement of said platen toward one of said first and second positions, thereby pinching close the engaged conduit, and for subsequently disengaging the conduit in response to movement of said platen toward the other one of said positions.

Claim 31

Dependent Claim 162 words

A plasmapheresis assembly comprising a primary conduit including, at one end thereof, a phlebotomy needle, first and second blood collection containers, first and second auxiliary conduits respectively attached in flow communication with said collection containers, a manifold interconnecting said primary conduit with said first and second auxiliary conduits, and a flow control device comprising a first member, means for releasably securing said manifold and a portion of said attached conduits on said first member, a second member including a movable portion, and means for mounting said second member in an operative position on said first member, in which position said secured portions of said primary and said auxiliary conduits are disposed between said first means and said movable portion, and means on said movable portion operative, in response to movement of said movable portion when said second member is in said operative position, for individually and selectively pinching close each of said auxiliary conduits between said first means and said movable member.

Claim 32

Dependent Claim 162 words

A plasmapheresis assembly comprising a primary conduit including, at one end thereof, a phlebotomy needle, first and second blood collection containers, first and second auxiliary conduits respectively attached in flow communication with said collection containers, a manifold interconnecting said primary conduit with said first and second auxiliary conduits, and a flow control device comprising a first member, means for releasably securing said manifold and a portion of said attached conduits on said first member, a second member including a movable portion, and means for mounting said second member in an operative position on said first member, in which position said secured portions of said primary and said auxiliary conduits are disposed between said first means and said movable portion, and means on said movable portion operative, in response to movement of said movable portion when said second member is in said operative position, for individually and selectively pinching close each of said auxiliary conduits between said first means and said movable member.

Claim 33

Dependent Claim 112 words

A plasmapheresis assembly according to claim 29 wherein said manifold includes a main passage having an end attached in flow communication with said primary conduit and an end normally open to communication with the atmosphere and accommodating attachment to a recipient set for conducting fluids into said main passage, a pair of branch passages each communicating with said main passage intermediate said ends thereof and attached in flow communication with a respective one of said first and second auxiliary conduit means, and plug means removably insertable into said open end of said main passage for sealing said open end while simultaneously blocking flow communication between said branch passages through said main passage.

Claim 34

Dependent Claim 74 words

A plasmapheresis assembly according to claim 30 wherein said conduit securing means is operative for releasably securing on said first member a portion of the recipient set which is attached to said manifold, and wherein said conduit pinching means is operative, when said second member is in said operative position, for selectively pinching said recipient set portion close between said movable portion and said first means in response to movement of said movable portion.

Claim 35

Dependent Claim 30 words

A plasmapheresis assembly according to claim 29 or 31 wherein said movable portion of said second member is operative for movement transversely of the remaining portion of said second member.

Claim 36

Dependent Claim 30 words

A plasmapheresis assembly according to claim 29 or 31 wherein said movable portion of said second member is operative for rotation relative to the remaining portion of said second member.

Claim 37

Dependent Claim 69 words

A plasmapheresis assembly according to claim 29 or 31 wherein said conduit pinching means includes cam means operative, when said movable portion is in a first position, for engaging the secured conduit to pinch the conduit between said cam means and said first member, thereby closing the secured conduit, and, when said movable portion is moved from said first position toward a second position, for disengaging the secured conduit.

Claim 38

Dependent Claim 54 words

A plasmapheresis assembly according to claim 29 or 31 wherein said mounting means includes means attaching said second member on said first member for movement between an inoperative position, in which said movable portion generally faces away from the secured conduits, and said operative position, in which said movable portion faces the secured conduit.

Claim 39

Dependent Claim 56 words

A plasmapheresis assembly according to claim 35 wherein said movable portion of said second member includes a platen, wherein the other portion of said second member includes a housing on which said platen is movably mounted, and wherein said mounting means attaches said housing on said first member for movement between said operative and inoperative positions.

Claim 40

Dependent Claim 51 words

A plasmapheresis assembly according to claim 36 wherein said conduit pinching means includes cam means on said platen operative for selectively pinching close at least one secured conduit between said cam means and said first member in response to movement of said platen when said housing is in said operative position.

Claim 41

Dependent Claim 85 words

A plasmapheresis assembly according to claim 37 wherein said platen is movable on said housing between spaced first and second positions, wherein said cam means is operative for engaging at least one of the secured conduits between said cam means and said first member in response to movement of said platen toward one of said first and second positions, thereby pinching close the engaged conduit, and for subsequently disengaging the conduit in response to movement of said platen toward the other one of said positions.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1987-01-09	1987-07-11	1988-01-10	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1991-01-09	1991-07-11	1992-01-10	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1995-01-09	1995-07-11	1996-01-10	$7700.00	Window Closed / Lapsed

Flow control mechanism for a plasmaspheresis assembly or the like

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