Patent US3628813A successfully refreshed from Google Patents.
US3628813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid connecting device
Assignee: Individual
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Filing: 1970-06-09
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Granted: 1971-12-21
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Expires: 1990-06-09
Abstract
Abstract A fluid connecting device particularly adapted for use in connection with hemodialysis operations to permit repeated access to the blood system of chronic hemodialysis patients. The device comprises a pair of tube elements and a base structure adapted for rigidly mounting the tube elements in spaced relationship. A compressible, resilient, elongated conduit member is compressed between the tube elements, to normally intercommunicate the same. When hemodialysis is required, the conduit member can be removed from the device utilizing only one hand and replaced by a similar member providing inlet and outlet connections for the hemodialysis operation.
Inventors
- 👤 Henry L Lee Jr
- 👤 Gordon W Culp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:38
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/10; A61M39/1011; A61M1/00; A61M1/36; A61M1/3621; A61M1/3653; A61M1/3659; A61M1/3661; F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/1225
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
215 words
A fluid connecting device comprising: a pair of elongated tube elements each having a positioning flange at one end and means at the opposite end for facilitating connection of the element to a remote liquid flow system, each of said flanges having a generally planar surface facing away from its corresponding tube element, there being a hole in each surface extending inwardly through the flange and communicating with the interior of the tube element; an elongated base structure rigidly mounting said flanges with said surfaces disposed in spaced, facing, generally parallel relationship presenting an elongated space extending therebetween; and an elongated conduit member disposed in said space and having a pair of opposed, generally planar, generally parallel faces, one at each end thereof, said member including fluid passageway defining means presenting an opening at each of said faces, said base structure including means engaging said conduit member and positioning the same in said space with said faces each engaging a corresponding surface and with said openings each disposed in fluid communication with a corresponding hole, said member being constructed with said faces initially spaced apart a distance slightly greater than the length of said space, said member being longitudinally compressible and resilient whereby said faces are resiliently urged into tight frictional engagement with corresponding surfaces.
Claim 2
Dependent Claim
215 words
A fluid connecting device comprising: a pair of elongated tube elements each having a positioning flange at one end and means at the opposite end for facilitating connection of the element to a remote liquid flow system, each of said flanges having a generally planar surface facing away from its corresponding tube element, there being a hole in each surface extending inwardly through the flange and communicating with the interior of the tube element; an elongated base structure rigidly mounting said flanges with said surfaces disposed in spaced, facing, generally parallel relationship presenting an elongated space extending therebetween; and an elongated conduit member disposed in said space and having a pair of opposed, generally planar, generally parallel faces, one at each end thereof, said member including fluid passageway defining means presenting an opening at each of said faces, said base structure including means engaging said conduit member and positioning the same in said space with said faces each engaging a corresponding surface and with said openings each disposed in fluid communication with a corresponding hole, said member being constructed with said faces initially spaced apart a distance slightly greater than the length of said space, said member being longitudinally compressible and resilient whereby said faces are resiliently urged into tight frictional engagement with corresponding surfaces.
Claim 3
Dependent Claim
25 words
A device as set forth in claim 1 wherein said passageway defining means defines a single passageway extending through said member and intercommunicating said openings.
Claim 4
Dependent Claim
57 words
A device as set forth in claim 1 wherein said member includes a pair of laterally extending conduit branches, said passageway defining means defining a separate branch passageway for each opening, each branch passageway connecting its opening with a respective one of said conduit branches, said branch passageways being out of fluid communication internally of the member.
Claim 5
Dependent Claim
38 words
A fluid connecting device as set forth in claim 1 wherein said conduit member is generally cylindrically shaped and wherein said means engaging said conduit member defines a cylindrically shaped cavity configured to complementally receive said member therewithin.
Claim 6
Dependent Claim
29 words
A fluid connecting device as set forth in claim 4 wherein the end portions of the member adjacent said faces are larger in diameter than the central portion thereof.
Claim 7
Dependent Claim
40 words
A fluid connecting device as set forth in claim 1 wherein the lateral edges of said faces and said surfaces are rounded to facilitate compressing of the member during insertion thereof into said space between the surfaces of the flanges.
Claim 8
Dependent Claim
50 words
A fluid connecting device as set forth in claim 4 wherein said conduit member is circular in cross-sectional configuration, the cross-sectional configuration of said cavity comprising a segment of a circle of approximately equal diameter, said openings being concentric with said member and said holes being concentric with said cavity.
Claim 9
Dependent Claim
33 words
A fluid connecting device as set forth in claim 1 wherein is included an extension at each end of said base structure to facilitate immobilization of said structure relative to a host therefor.
Claim 10
Dependent Claim
42 words
A device as set forth in claim 1 wherein said base structure includes a boss for each tube element, said bosses being substantially coextensive in size with said flanges, said tube elements extending through said bosses with said flanges abutting the bosses.
Claim 11
Dependent Claim
33 words
A device as set forth in claim 1 wherein is included a cover for said member, said cover being snappingly engageable with said base structure into surrounding relationship relative to said conduit member.
Claim 12
Dependent Claim
104 words
A device as set forth in claim 1 and a second conduit member interchangeable with said first-mentioned conduit member, the passageway defining means of one of said members defining a single passageway extending through said one member and intercommunicating its openings, the second of said members including a pair of laterally extending conduit branches, the passageway defining means of said second member defining a sEparate passageway for each opening thereof, each of the passageways of the second member connecting its opening with a respective one of said branches, the passageways of said second member being out of fluid communication internally of said second member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |