Patent US5205820A successfully refreshed from Google Patents.
US5205820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid delivery apparatus
Assignee: PESCADERO BEACH HOLDINGS Corp
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Filing: 1992-04-17
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Granted: 1993-04-27
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Expires: 2012-04-17
Abstract
Abstract An apparatus for accurately infusing medicinal agents into an ambulatory patient at specific rates over extended periods of time. The apparatus is of a compact, low profile, laminate construction and includes an elastic distendable membrane, which, in cooperation with a thin planar base, defines a fluid chamber having a fluid outlet. Disposed within the fluid chamber is a thin fluid permeable member which precisely controls the rate of fluid flow through the fluid outlet.
Inventors
- 👤 Marshall S. Kriesel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:23
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/1407; A61M5/1409; A61M5/142; A61M5/145; A61M5/148; A61M5/152; A61M2205/00; A61M2205/19; A61M2205/192; A61M2205/197; A61M5/14244; A61M5/14248; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
129 words
A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising: (a) a base having a fluid inlet and fluid outlet interconnected by a fluid flow path; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; and (d) adding means disposed within said fluid flow path for adding an additive to fluid flowing therethrough.
Claim 2
Independent Claim
129 words
A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising: (a) a base having a fluid inlet and fluid outlet interconnected by a fluid flow path; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; and (d) adding means disposed within said fluid flow path for adding an additive to fluid flowing therethrough.
Claim 3
Dependent Claim
58 words
A device as defined in claim 1 in which said adding means comprises an additive and an additive presentation means for presenting said additive to the fluid, said additive presentation means being disposed within said fluid flow path so that at least a part of said additive will be added to said fluid introduced into said fluid inlet.
Claim 4
Dependent Claim
43 words
A device as defined in claim 1 in which said adding means comprises an additive and an additive presentation means for presenting said additive to the fluid, said additive presentation means having exposed surfaces, said additive being removably connected to said exposed surfaces.
Claim 5
Dependent Claim
59 words
A device as defined in claim 1 in which said adding means comprises a structural support having exposed surfaces and a beneficial agent present on said exposed surfaces said structural support being disposed within said fluid flow path so that at least a portion of said beneficial agent will be added to said fluid introduced into said fluid inlet.
Claim 6
Dependent Claim
55 words
A device as defined in claim 1 in which said adding means comprises a polymer support and an additive carried by said polymer support, said polymer support being disposed within said fluid flow path so that at least a portion of said additive will be added to the fluid flowing through said fluid flow path.
Claim 7
Dependent Claim
54 words
A device as defined in claim 1 in which said adding means comprises a member having exposed surfaces and a biologically active material present on said exposed surfaces, said member being disposed within said fluid flow path so that said biologically active material will be added to said fluid introduced into said fluid inlet.
Claim 8
Dependent Claim
35 words
A device as defined in claim 1 in which said distendable membrane comprises a plurality of layers of an elastic material one said layer being in contact with the fluid introduced by said filling means.
Claim 9
Dependent Claim
33 words
A device as defined in claim 1 further including at least one fluid flow control means disposed internally of said chamber for controlling the rate of flow of fluid toward said fluid outlet.
Claim 10
Dependent Claim
28 words
A device as defined in claim 8 further including means disposed intermediate said distendable membrane and said fluid flow control means for creating an ullage within said chamber.
Claim 11
Dependent Claim
22 words
A device as defined in claim 8 in which said fluid flow control means comprises a thin film, planar shaped permeable membrane.
Claim 12
Dependent Claim
42 words
A device as defined in claim 8 in which said fluid flow control means comprises first and second permeable members, each of said permeable members having different permeability, whereby the rate of fluid flow along said fluid flow path is controllably regulated.
Claim 13
Dependent Claim
22 words
A device as defined in claim 8 further including infusion means connected to said fluid outlet for infusing fluid into the patient.
Claim 14
Dependent Claim
22 words
A device as defined in claim 12 in which said filling means comprises a self-sealing, puncturable septum disposed within said fluid inlet.
Claim 15
Independent Claim
159 words
A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising: (a) a base having a fluid inlet, a fluid outlet and a fluid passageway interconnecting said fluid inlet and said fluid outlet; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid passageway, and with said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet and having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; (d) adding means disposed within said fluid passageway for adding an additive to fluid flowing therethrough, said adding means comprising a support and an additive removably connected to said support; and (e) infusion means communicating with said fluid passageway for infusing fluid into the patient.
Claim 16
Independent Claim
159 words
A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising: (a) a base having a fluid inlet, a fluid outlet and a fluid passageway interconnecting said fluid inlet and said fluid outlet; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid passageway, and with said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet and having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; (d) adding means disposed within said fluid passageway for adding an additive to fluid flowing therethrough, said adding means comprising a support and an additive removably connected to said support; and (e) infusion means communicating with said fluid passageway for infusing fluid into the patient.
Claim 17
Dependent Claim
42 words
A device as defined in claim 14 in which said support has an exposed region, said additive being present at said region, said support being disposed within said fluid passageway so that said additive will be added to said fluid flowing therethrough.
Claim 18
Dependent Claim
16 words
A device as defined in claim 15 in which said additive includes an active surface agent.
Claim 19
Dependent Claim
16 words
A device as defined in claim 15 in which said support extends transversely of said base.
Claim 20
Dependent Claim
16 words
A device as defined in claim 15 in which said support extends longitudinally of said base.
Claim 21
Dependent Claim
17 words
A device as defined in claim 15 in which said support comprises a body having interstitial voids.
Claim 22
Dependent Claim
35 words
A device as defined in claim 15 in which said support comprises a solid member and in which said exposed region comprises an exposed surface on said member, said additive being deposited on said surface.
Claim 23
Dependent Claim
20 words
A device as defined in claim 15 in which said support comprises a body comprising a multiplicity of microporous polymers.
Claim 24
Dependent Claim
20 words
A device as defined in claim 15 in which said support comprises a body constructed from high porosity, semi-synthetic celullosics.
Claim 25
Dependent Claim
30 words
A device as defined in claim 15 in which said support comprises a plurality of spaced apart porous disk shaped wafers each said wafer having a site exhibiting an additive.
Claim 26
Dependent Claim
20 words
A device as defined in claim 15 in which said support comprises a body formed of a porous ceramic material.
Claim 27
Dependent Claim
15 words
A device as defined in claim 15 in which said support comprises a crystal sponge.
Claim 28
Dependent Claim
22 words
A device as defined in claim 15 in which said support comprises a body constructed from a multiplicity of porous glass beads.
Claim 29
Dependent Claim
14 words
A device as defined in claim 15 in which said additive comprises a drug.
Claim 30
Dependent Claim
16 words
A device as defined in claim 15 in which said additive comprises a biologically active material.
Claim 31
Dependent Claim
15 words
A device as defined in claim 15 in which said additive comprises a chemical compound.
Claim 32
Dependent Claim
16 words
A device as defined in claim 15 in which said support comprises an azlactone functional polymer.
Claim 33
Independent Claim
169 words
A device for use in infusing beneficial agents into a patient at a controlled rate comprising: (a) a base having a fluid inlet, a fluid outlet and a fluid passageway interconnecting said fluid inlet and said fluid outlet; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid passageway, said membrane being distendable by fluid introduce into said chamber under pressure through said fluid passageway and having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; (d) adding means mounted within said base for adding an additive to fluid introduced by said filling means, said adding means comprising: (i) additive presentation means disposed within said fluid passageway for presenting an additive to the fluid flowing therethrough; and (ii) an additive removably interconnected to said additive presentation means, said additive comprising a beneficial agent.
Claim 34
Independent Claim
169 words
A device for use in infusing beneficial agents into a patient at a controlled rate comprising: (a) a base having a fluid inlet, a fluid outlet and a fluid passageway interconnecting said fluid inlet and said fluid outlet; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid passageway, said membrane being distendable by fluid introduce into said chamber under pressure through said fluid passageway and having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; (d) adding means mounted within said base for adding an additive to fluid introduced by said filling means, said adding means comprising: (i) additive presentation means disposed within said fluid passageway for presenting an additive to the fluid flowing therethrough; and (ii) an additive removably interconnected to said additive presentation means, said additive comprising a beneficial agent.
Claim 35
Dependent Claim
24 words
A device as defined in claim 31 in which said adding means comprises a vial assembly having said additive presentation means sealably contained therein.
Claim 36
Dependent Claim
32 words
A device as defined in claim 32 in which said additive presentation means comprises a functional substrate and in which said additive comprises a beneficial agent removably affixed to said functional substrate.
Claim 37
Dependent Claim
28 words
A device as defined in claim 33 in which said vial assembly comprises a glass vial having first and second ends sealed by first and second sealing members.
Claim 38
Dependent Claim
21 words
A device as defined in claim 34 in which said base includes a longitudinally extending chamber for receiving said glass vial.
Claim 39
Dependent Claim
41 words
A device as defined in claim 35 in which a hollow needle is mounted within said longitudinally extending chamber for piercing said second sealing member, said hollow needle having a fluid passageway in communication with said fluid passageway of said base.
Claim 40
Dependent Claim
24 words
A device as defined in claim 36 further including vial locking means for locking said vial within said longitudinally extending chamber of said base.
Claim 41
Dependent Claim
20 words
A device as defined in claim 36, further including end caps sealably receivable over said first and second sealing members.
Claim 42
Dependent Claim
37 words
A device as defined in claim 36 in which said filling means comprises a hollow needle interconnected with a source of fluid, said hollow needle being adapted to pierce said first sealing member of said vial assembly.
Claim 43
Independent Claim
178 words
A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising: (a) a base having a fluid inlet and fluid outlet interconnected by a fluid flow path; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; and (d) adding means disposed within said fluid flow path for adding an additive to fluid flowing therethrough, said adding means comprising an additive and an additive presentation means for presenting said additive to the fluid, said additive presentation means being disposed within said fluid flow path so that at least a part of said additive will be added to said fluid introduced into said fluid inlet.
Claim 44
Independent Claim
178 words
A device for use in infusing fluids into an ambulatory patient at a controlled rate comprising: (a) a base having a fluid inlet and fluid outlet interconnected by a fluid flow path; (b) filling means for introducing fluid into said fluid inlet; (c) a distendable membrane constructed of an elastic material which is fitted over said base to define a chamber in communication with said fluid inlet and said fluid outlet, said membrane being distendable by fluid introduced into said chamber under pressure through said fluid inlet, said membrane having a tendency to return to a substantially nondistended configuration whereby fluid within said chamber will be expelled through said fluid outlet; and (d) adding means disposed within said fluid flow path for adding an additive to fluid flowing therethrough, said adding means comprising an additive and an additive presentation means for presenting said additive to the fluid, said additive presentation means being disposed within said fluid flow path so that at least a part of said additive will be added to said fluid introduced into said fluid inlet.
Claim 45
Dependent Claim
36 words
A device as defined in claim 40 in which said distendable membrane includes a surface in contact with the fluid introduced by said filling means and in which said additive is removably interconnected with said surface.
Claim 46
Dependent Claim
47 words
A device as defined in claim 40 in which said additive presentation means comprises a flow rate control membrane disposed between said fluid outlet of said base and said chamber, said flow rate control membrane having exposed surfaces, said additive being removably connected to said exposed surfaces.
Claim 47
Dependent Claim
27 words
A device as defined in claim 40 in which said additive presentation means comprises a surface on said base, said additive being removably connected to said surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |