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US4774955A Expired / Lapsed US ⏱️ 0.0 years remaining

Programmable dialyzer system analyzer and method of use

Assignee: Solutech Inc
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Filing: 1987-07-29
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Granted: 1988-10-04
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Expires: 2007-07-29
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Abstract

Abstract An apparatus and a method of use for removing specified dialyzable components from a complex reference fluid such as, for example, blood. The invention includes a semi-permeable tubular dialysis membrane, which is inserted into the reference fluid. An equilibration fluid is injected into the tubular membrane and allowed to equilibrate with the outside reference fluid. The equilibrated fluid is then removed for analysis.

Inventors

  • 👤 Jeffrey S. Jones

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 13:30
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0002; A61B5/0031; A61B5/07; A61B5/145; A61B5/14525; A61B5/14528; A61B5/68; A61B5/6846; A61B5/6847; A61B5/686; B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/487; G01N33/49; G01N33/491

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 142 words
An apparatus for treating a complex fluid comprising: (a) a dialysis system for recovering dialyzable components from said complex fluid, said dialysis system comprising a body portion including a flexible, elongated tubular semi-permeable dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said dialyzing membrane, a wire stylet within said lumen for maintaining the longitudinal integrity of said body portion, and fluid communication means adapted to pass a membrane solution to and from said body portion; (b) means for analyzing the content and quantity of said dialyzable components; (c) programmable means for processing said analyzed information generated from step (b); and (d) means for delivering a controlled amount of an injection dose to said complex fluid in accordance with the result of said processing from said programmable means of step (c).
Claim 2
Independent Claim 142 words
An apparatus for treating a complex fluid comprising: (a) a dialysis system for recovering dialyzable components from said complex fluid, said dialysis system comprising a body portion including a flexible, elongated tubular semi-permeable dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said dialyzing membrane, a wire stylet within said lumen for maintaining the longitudinal integrity of said body portion, and fluid communication means adapted to pass a membrane solution to and from said body portion; (b) means for analyzing the content and quantity of said dialyzable components; (c) programmable means for processing said analyzed information generated from step (b); and (d) means for delivering a controlled amount of an injection dose to said complex fluid in accordance with the result of said processing from said programmable means of step (c).
Claim 3
Dependent Claim 21 words
The apparatus according to claim 1, wherein said means for delivering said controlled amount of injection dose is an infusion pump.
Claim 4
Dependent Claim 47 words
The apparatus according to claim 1, further comprising means for delivering said injection dose to said body portion lumen wherein said semi-permeable dialyzing membrane of said lumen is permeable to said injection dose, allowing said injection dose to pass through said semi-permeable membrane to said complex fluid.
Claim 5
Dependent Claim 69 words
The apparatus according to claim 1 wherein said fluid communication means comprises a tubular conduit having a lumen along the longitudinal axis of said conduit, said conduit having a first and a second end, wherein said first end of said conduit is attached to the proximal end of said body portion such that the lumens of each of said body portion and said conduit communicate directly with each other.
Claim 6
Independent Claim 216 words
A method for treating a complex fluid comprising: (a) placing a dialysis apparatus into said fluid, said apparatus comprising a body portion including an elongated tubular dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said tubular dialyzing membrane, means within said lumen for maintaining the longitudinal integrity of said body portion, an elongated tubular conduit having a lumen along the longitudinal axis of said conduit, said conduit having a first end and a second end wherein said first end of said conduit is attached to said proximal end of said body portion such that the lumens of each of said body portion and said conduit communicate directly with each other, and said conduit being adapted to receive a means for injecting and withdrawing a membrane solution into said body portion lumen in such a manner that said injecting means is in adjacent and direct communication with said body portion lumen; (b) injecting a membrane solution through said conduit into said lumen of said tubular membrane, said membrane solution being adapted to equilibrate with said complex fluid; (c) analyzing said equilibrated membrane solution; and (d) delivering a controlled amount of an injection dose to said complex fluid in accordance with the result of said analyzing.
Claim 7
Independent Claim 216 words
A method for treating a complex fluid comprising: (a) placing a dialysis apparatus into said fluid, said apparatus comprising a body portion including an elongated tubular dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said tubular dialyzing membrane, means within said lumen for maintaining the longitudinal integrity of said body portion, an elongated tubular conduit having a lumen along the longitudinal axis of said conduit, said conduit having a first end and a second end wherein said first end of said conduit is attached to said proximal end of said body portion such that the lumens of each of said body portion and said conduit communicate directly with each other, and said conduit being adapted to receive a means for injecting and withdrawing a membrane solution into said body portion lumen in such a manner that said injecting means is in adjacent and direct communication with said body portion lumen; (b) injecting a membrane solution through said conduit into said lumen of said tubular membrane, said membrane solution being adapted to equilibrate with said complex fluid; (c) analyzing said equilibrated membrane solution; and (d) delivering a controlled amount of an injection dose to said complex fluid in accordance with the result of said analyzing.
Claim 8
Independent Claim 165 words
An apparatus for treating a complex fluid comprising: (a) a dialysis system for recovering dialyzable components from said complex fluid, said dialysis system comprising a body portion including a flexible, elongated tubular semi-permeable dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said dialyzing membrane, means within said lumen for maintaining the longitudinal integrity of said body portion, and fluid communication means adapted to pass a membrane solution to and from said body portion; (b) means for analyzing the content and quantity of said dialyzable components; (c) programmable means for processing said analyzed information generated from step (b); and (d) means for delivering a controlled amount of an injection dose to said body portion lumen in accordance with the result of said processing from said programmable means of step (c), wherein said semi-permeable membrane is permeable to said injection dose allowing said injection dose to pass through said semi-permeable membrane to said complex fluid.
Claim 9
Independent Claim 165 words
An apparatus for treating a complex fluid comprising: (a) a dialysis system for recovering dialyzable components from said complex fluid, said dialysis system comprising a body portion including a flexible, elongated tubular semi-permeable dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said dialyzing membrane, means within said lumen for maintaining the longitudinal integrity of said body portion, and fluid communication means adapted to pass a membrane solution to and from said body portion; (b) means for analyzing the content and quantity of said dialyzable components; (c) programmable means for processing said analyzed information generated from step (b); and (d) means for delivering a controlled amount of an injection dose to said body portion lumen in accordance with the result of said processing from said programmable means of step (c), wherein said semi-permeable membrane is permeable to said injection dose allowing said injection dose to pass through said semi-permeable membrane to said complex fluid.
Claim 10
Dependent Claim 21 words
The apparatus according to claim 6, wherein said means for delivering said controlled amount of injection dose is an infusion pump.
Claim 11
Independent Claim 221 words
A method for treating a complex fluid comprising: (a) placing a dialysis apparatus into said fluid, said apparatus comprising a body portion including an elongated tubular dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said tubular dialyzable membrane, means within said lumen for maintaining the longitudinal integrity of said body portion, an elongated tubular conduit having a lumen along the longitudinal axis of said conduit, said conduit having a first end and a second end wherein said first end of said conduit is attached of said proximal end of said body portion such that the lumens of each of said body portion and said conduit communicate directly with each other, and said conduit being adapted to receive a means for injecting and withdrawing a membrane solution into said body portion lumen in such a manner that said injecting means is in adjacent and direct communication with said body portion lumen; (b) injecting a membrane solution through said conduit into said lumen of said tubular membrane, said membrane solution being adapted to equilibrate with said complex fluid; (c) analyzing said equilibrated membrane solution; and (d) delivering a controlled amount of an injection dose through said tubular dialyzing membrane to said complex fluid in accordance with the result of said analyzing.
Claim 12
Independent Claim 221 words
A method for treating a complex fluid comprising: (a) placing a dialysis apparatus into said fluid, said apparatus comprising a body portion including an elongated tubular dialyzing membrane having a closed distal end and a proximal end, said body portion further including a single lumen within said tubular dialyzable membrane, means within said lumen for maintaining the longitudinal integrity of said body portion, an elongated tubular conduit having a lumen along the longitudinal axis of said conduit, said conduit having a first end and a second end wherein said first end of said conduit is attached of said proximal end of said body portion such that the lumens of each of said body portion and said conduit communicate directly with each other, and said conduit being adapted to receive a means for injecting and withdrawing a membrane solution into said body portion lumen in such a manner that said injecting means is in adjacent and direct communication with said body portion lumen; (b) injecting a membrane solution through said conduit into said lumen of said tubular membrane, said membrane solution being adapted to equilibrate with said complex fluid; (c) analyzing said equilibrated membrane solution; and (d) delivering a controlled amount of an injection dose through said tubular dialyzing membrane to said complex fluid in accordance with the result of said analyzing.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-10-04 1992-04-04 1992-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-10-04 1996-04-04 1996-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-10-04 2000-04-04 2000-10-04 $7700.00 Window Closed / Lapsed

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