US5026344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable injection chamber device
Assignee: Individual
•
Filing: 1989-12-19
•
Granted: 1991-06-25
•
Expires: 2009-12-19
Abstract
Abstract An implantable injection chamber device comprising a housing which encloses an injection chamber and has at least one wall that can be pierced with a hollow needle, and a bore provided in a wall of the chamber, there being further provided connecting means for connecting a catheter to the bore, and in which the connecting means comprise a tube of pliable material which is connected to the bore and in operation extends through a bore in a first member of the connecting means, at least a part of said first member surrounding the tube relatively tightly and said part being provided with a plurality of radially disposed longitudinal grooves; and a second member of the connecting means is provided, which in operation surrounds the part of the first member that is provided with longitudinal grooves and is capable of pressing inwardly the parts of the first member between the longitudinal grooves.
Inventors
- 👤 Klaas Dijkstra
- 👤 Frans P. Boersma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:37
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/10; A61M39/12; A61M25/00; A61M2025/0098; A61M39/02; A61M39/0208
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
152 words
An implantable injection chamber device comprising a housing which encloses an injection chamber and has at least one wall that can be pierced with a hollow needle, and a bore provided in a wall of the chamber, there being further provided connecting means for connecting a catheter to the bore, characterized in that the connecting means comprise a tube of pliable material which is connected to the bore and in operation extends through a bore in a first member of the connecting means, at least a part of said first member surrounding the tube relatively tightly and said part being provided with a plurality of radially disposed longitudinal grooves; and that a second member of the connecting means is provided, which in operation surrounds the part of the first member that is provided with longitudinal grooves and is capable of pressing inwardly the parts of the first member between the longitudinal grooves.
Claim 2
Dependent Claim
152 words
An implantable injection chamber device comprising a housing which encloses an injection chamber and has at least one wall that can be pierced with a hollow needle, and a bore provided in a wall of the chamber, there being further provided connecting means for connecting a catheter to the bore, characterized in that the connecting means comprise a tube of pliable material which is connected to the bore and in operation extends through a bore in a first member of the connecting means, at least a part of said first member surrounding the tube relatively tightly and said part being provided with a plurality of radially disposed longitudinal grooves; and that a second member of the connecting means is provided, which in operation surrounds the part of the first member that is provided with longitudinal grooves and is capable of pressing inwardly the parts of the first member between the longitudinal grooves.
Claim 3
Dependent Claim
32 words
An implantable injection chamber device according to claim 1, characterized in that said longitudinal grooves of said first member extend from one end thereof to form resilient tongues between said longitudinal grooves.
Claim 4
Dependent Claim
29 words
An implantable injection chamber device according to claim 2, characterized in that said second member is a sleeve in operation surrounding said tongues and which presses said tongues inwardly.
Claim 5
Dependent Claim
17 words
An implantable injection chamber device according to claim 3, characterized in that said sleeve is internally tapered.
Claim 6
Dependent Claim
19 words
An implantable injection device according to claim 3, characterized in that the sleeve comprises first internal annular shoulder means.
Claim 7
Dependent Claim
33 words
An implantable injection chamber device according to claim 5, characterized in that the first member comprises an annular groove provided near the tongues, said groove in operation seating the shoulder of the sleeve.
Claim 8
Dependent Claim
18 words
An implantable injection chamber device according to claim 3, characterized in that the sleeve is a sliding sleeve.
Claim 9
Dependent Claim
18 words
An implantable injection chamber device according to claim 3, characterized in that the sleeve is a threaded sleeve.
Claim 10
Dependent Claim
31 words
An implantable injection chamber device according to claim 3, characterized in that the sleeve has second internal shoulder means, which in operation engage behind a corresponding shoulder of the first member.
Claim 11
Dependent Claim
48 words
An implantable injection chamber device according to claim 9, characterized in that the second internal shoulder means of the sleeve and the corresponding shoulder of the first member permit the sleeve to be displaced between a clamping position and an uncoupling position without the shoulders passing each other.
Claim 12
Dependent Claim
22 words
An implantable injection chamber device according to claim 1, characterized in that the first member forms an integral part of the housing.
Claim 13
Dependent Claim
30 words
An implantable injection chamber device according to claim 1, characterized in that the tube is clamped tight in the bore in the chamber wall by means of a bored plug.
Claim 14
Dependent Claim
22 words
An implantable injection chamber device according to claim 1, characterized in that the second member is provided with external grooves and/or ribs.
Claim 15
Dependent Claim
28 words
An implantable injection chamber device according to claim 1, characterized in that the second member can be coupled to the first member by means of a bayonet joint.
Claim 16
Dependent Claim
31 words
An implantable injection chamber device according to claim 14, characterized in that the sleeve is provided with one or more internal projections, which cooperate with ascending shoulders in the first member.
Claim 17
Dependent Claim
22 words
A connecting arrangement for connecting an injection chamber with a catheter, which comprises first and second cooperating members according to claim 1.
References Cited (Backward Citations)
GB891392A
Cited
GB2020385A
Cited
US4398910A
Cited
EP0091773A2
Cited
US4652255A
Cited
EP0258580A2
Cited
US4781680A
Cited
FR2612784A1
Cited
US4955861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |