Patent US6022335A successfully refreshed from Google Patents.
US6022335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable hemodialysis triple port assembly
Assignee: Individual
•
Filing: 1998-07-01
•
Granted: 2000-02-08
•
Expires: 2018-07-01
Abstract
Abstract An implantable dialysis connection assembly for connecting first and second catheters positioned with a vein to first and second terminals of a dialysis machine. The assembly includes a housing having first, second and third recesses extending into a face side thereof. A first port is positioned within the first recess for receiving the first terminal and retaining an end of the first terminal within the first recess. A second port is positioned within the second recess for receiving the second terminal and retaining an end of the second terminal within the second recess. A third port is positioned within the third recess for connecting to a supply of heparin for deposit within the third recess. The third port is connected to the first port for supplying heparin thereto by a first conduit and the third port is connected to the second port for supplying heparin thereto by a second conduit. First and second connection devices connect the first and second ports to the first and second conduits, respectively. In operation, the first terminal causes blood to be removed from the vein through the first catheter and first recess for delivery to and detoxification by the dialysis machine and the second terminal causes detoxified blood to be returned to the vein through the second recess and second catheter, said heparin being supplied to said first and second recesses during dialysis for preventing the blood passing through said first and second recesses from clotting and thereby clogging the first and second terminals.
Inventors
- 👤 Hossein Ramadan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:23
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/0208; A61M2039/0211; A61M2202/00; A61M2202/04; A61M2202/0468; A61M2202/0478
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
295 words
An implantable dialysis connection assembly for connecting first and second catheters positioned with a vein in a patients body to first and second terminals of a dialysis machine, said implantable dialysis connection assembly comprising: a) a housing including a face side, and first, second and third recesses extending into said face side; b) a first port positioned within said first recess for receiving the first terminal and retaining an end of the first terminal within said first recess; c) a second port positioned within said second recess for receiving the second terminal and retaining an end of the second terminal within said second recess; d) a third port positioned within the third recess for connecting to a supply of heparin for deposit within the third recess; e) a first conduit extending between said first and third recesses for supplying heparin from said third recess to said first recess; f) a second conduit extending between said second recess and said third recess for supplying heparin from said third recess to said second recess; g) first means extending from said first recess for connecting said first recess to the first catheter; and h) second means extending from said first recess for connecting said second recess to the second catheter, wherein blood is removed from the vein through the first catheter, said first connecting means and said first recess and through the first terminal retained within said first recess to the dialysis machine and blood is returned to the vein through the second terminal, said second recess, said second connecting means and the second catheter, said heparin being supplied to said first and second recesses during dialysis for preventing the blood passing through said first and second recesses from clotting and thereby clogging the first and second terminals.
Claim 2
Dependent Claim
295 words
An implantable dialysis connection assembly for connecting first and second catheters positioned with a vein in a patients body to first and second terminals of a dialysis machine, said implantable dialysis connection assembly comprising: a) a housing including a face side, and first, second and third recesses extending into said face side; b) a first port positioned within said first recess for receiving the first terminal and retaining an end of the first terminal within said first recess; c) a second port positioned within said second recess for receiving the second terminal and retaining an end of the second terminal within said second recess; d) a third port positioned within the third recess for connecting to a supply of heparin for deposit within the third recess; e) a first conduit extending between said first and third recesses for supplying heparin from said third recess to said first recess; f) a second conduit extending between said second recess and said third recess for supplying heparin from said third recess to said second recess; g) first means extending from said first recess for connecting said first recess to the first catheter; and h) second means extending from said first recess for connecting said second recess to the second catheter, wherein blood is removed from the vein through the first catheter, said first connecting means and said first recess and through the first terminal retained within said first recess to the dialysis machine and blood is returned to the vein through the second terminal, said second recess, said second connecting means and the second catheter, said heparin being supplied to said first and second recesses during dialysis for preventing the blood passing through said first and second recesses from clotting and thereby clogging the first and second terminals.
Claim 3
Dependent Claim
43 words
The implantable dialysis connection assembly as recited in claim 1, wherein the first and second terminals each include a needle extending therefrom and said first and second ports each receive a needle of a respective one of the first and second terminals therein.
Claim 4
Dependent Claim
41 words
The implantable dialysis connection assembly as recited in claim 2, further comprising a first entrance extending between said first recess and said first means for connecting and a second entrance extending between said second recess and said second means for connecting.
Claim 5
Dependent Claim
42 words
The implantable dialysis connection assembly as recited in claim 3, further comprising a first hollow protrusion extending from said first entrance for connection to said first means for connection and a second hollow protrusion for connecting to said second means for connecting.
Claim 6
Dependent Claim
47 words
The implantable dialysis connection assembly as recited in claim 4, wherein said first protrusion includes a thread spiraling therearound and said first means for connecting is hollow and includes a thread spiraling around an inner side thereof for mating with said thread spiraling around said first protrusion.
Claim 7
Dependent Claim
47 words
The implantable dialysis connection assembly as recited in claim 5, wherein said second protrusion includes a thread spiraling therearound and said second means for connecting is hollow and includes a thread spiraling around an inner side thereof for mating with said thread spiraling around said second protrusion.
Claim 8
Dependent Claim
42 words
The implantable dialysis connection assembly as recited in claim 6, wherein the first catheter is secured within said inner side of said first means for connecting and the second catheter is secured within said inner side of said second means for connecting.
Claim 9
Dependent Claim
51 words
The implantable dialysis connection assembly as recited in claim 7, further comprising a first compression sleeve positioned between said inner side of said first means for connecting and the first catheter and a second compression sleeve positioned between said inner side of the second means for connecting and said second catheter.
Claim 10
Dependent Claim
44 words
The implantable dialysis connection assembly as recited in claim 8, wherein said first and second ports have a surface area of a size able to provide a large number of insertion points thereby allowing an area time to heal after puncture with a needle.
Claim 11
Dependent Claim
50 words
The implantable dialysis connection assembly as recited in claim 2, wherein said first and second ports each have a thickness and said first and second recesses each have a depth, said thickness of said first and second ports being less than the depth of said first and second recesses, respectively.
Claim 12
Dependent Claim
36 words
The implantable dialysis connection assembly as recited in claim 10, wherein a pool is formed in said first recess below said first port and a pool is formed in said second recess below said second port.
Claim 13
Dependent Claim
25 words
The implantable dialysis connection assembly as recited in claim 11, wherein said first and second ports are formed of a rubberized self sealing silicone material.
Claim 14
Dependent Claim
47 words
The implantable dialysis connection assembly as recited in claim 12, wherein said first and second ports each include a defining wall, said defining wall of said first and second ports being coated with a material able to prevent a needle inserted therein from piercing the defining wall.
Claim 15
Dependent Claim
58 words
The implantable dialysis connection assembly as recited in claim 13, wherein the needle extending from the first terminal extends through said first port and into said pool formed in said first recess upon insertion and the needle extending from the second terminal extends through said second port and into said pool formed in said second recess upon insertion.
Claim 16
Dependent Claim
28 words
The implantable dialysis connection assembly as recited in claim 1, wherein said assembly is implanted positioned below subcutaneous tissue in a left subclavicular area of the patient's body.
Claim 17
Dependent Claim
27 words
The implantable dialysis connection assembly as recited in claim 15, further comprising means extending from said housing for securing said assembly within the body of the user.
Claim 18
Dependent Claim
29 words
The implantable dialysis connection assembly in claim 16, wherein said means for securing is at least one of suchered and stapled to the subcutaneous tissue in the patient's body.
Claim 19
Dependent Claim
23 words
The implantable dialysis connection assembly as recited in claim 1, wherein said third port is formed of a rubberized self sealing silicone material.
Claim 20
Dependent Claim
27 words
The implantable dialysis connection assembly as recited in claim 1, further comprising means extending from said housing for securing said assembly within the body of the user.
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) | 2003-02-07 | 2003-08-09 | 2004-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-07 | 2007-08-09 | 2008-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-07 | 2011-08-09 | 2012-02-08 | $7700.00 | Window Closed / Lapsed |