Patent US4970926A successfully refreshed from Google Patents.
US4970926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making angled hole ventricular catheter
Assignee: Neurodynamics Inc
•
Filing: 1988-08-02
•
Granted: 1990-11-20
•
Expires: 2008-08-02
Abstract
Abstract An apparatus for making a hollow elongated member having a plurality of apertures therein comprising: a first component for supporting a hollow elongated member in a predetermined position and orientation for formation of a plurality of apertures therein; and a second component for forming a plurality of apertures at a predetermined position and orientation and of a predetermmined dimension thereof in the hollow elongated member; the second component being guidably received within the first component for alignment therewith. Alternatively, the apparatus includes an insert comprising rod means for forming a plurality of apertures of a predetermined size; and means for forming and supporting the hollow bore of the elongated member. The rod means is positioned at a predetermined orientation with respect to the bore forming means so that the hollow elongated member receives a plurality of apertures therein at a predetermined position, orientation and dimension. This embodiment includes a molding assembly comprising means for forming and supporting a hollow elongated member by substantially completely surrounding the member; a plurality of apertures located in the forming means for guidably receiving the rod means therein to properly orient the insert within a forming means; and means for introducing a polymerizable liquid into the molding assembly so as to form the catheter by polymerization of the liquid therein.
Inventors
- 👤 Jamshid B. G. Ghajar
- 👤 Robert J. Hariri
- 👤 Fathali Ghahremani-Ghadjar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:29
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0009; A61M25/0015; A61M25/0067; A61M25/0068; A61M25/007; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/748; Y10T83/7593; Y10T83/7667; Y10T83/7673; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8857; Y10T83/889; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/944
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
179 words
An apparatus for making a hollow elongated member having a plurality of apertures therein, comprising: a cutting assembly comprising means for cutting a plurality of apertures of a predetermined size in said hollow elongated member; and a holding assembly comprising: a machined metal cube containing an elongated aperture of a size and dimension slightly larger than that of said hollow elongated member so that said elongated member can be easily and removably inserted into said elongated aperture, said elongated aperture extending along a diagonal line passing through the center of said cube; means in said cube for guidably directing said cutting assembly through said cube for cutting contact with said hollow elongated member at a predetermined angle thereto; and means operatively associated with said cube and said directing means for positioning said portion of said hollow elongated member at a predetermined orientation with respect to said cutting assembly so that said hollow elongated member can be placed into said holding assembly in a manner to receive a plurality of said apertures therein at a predetermined position, orientation and dimension.
Claim 2
Independent Claim
179 words
An apparatus for making a hollow elongated member having a plurality of apertures therein, comprising: a cutting assembly comprising means for cutting a plurality of apertures of a predetermined size in said hollow elongated member; and a holding assembly comprising: a machined metal cube containing an elongated aperture of a size and dimension slightly larger than that of said hollow elongated member so that said elongated member can be easily and removably inserted into said elongated aperture, said elongated aperture extending along a diagonal line passing through the center of said cube; means in said cube for guidably directing said cutting assembly through said cube for cutting contact with said hollow elongated member at a predetermined angle thereto; and means operatively associated with said cube and said directing means for positioning said portion of said hollow elongated member at a predetermined orientation with respect to said cutting assembly so that said hollow elongated member can be placed into said holding assembly in a manner to receive a plurality of said apertures therein at a predetermined position, orientation and dimension.
Claim 3
Dependent Claim
46 words
The apparatus of claim 1 wherein said directing means comprises at least three sets of alignment apertures, each set being spaced from the others so that said hollow elongated member will be provided with three rows of apertures spaced about 120° apart along its outer periphery.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2 wherein the cutting means includes a plurality of elongated tubes.
Claim 5
Dependent Claim
15 words
The apparatus of claim 2 wherein the cutting means includes a plurality of rod members.
Claim 6
Dependent Claim
43 words
The apparatus of claim 3 wherein said alignment apertures are of slightly greater size and dimension than said elongated tubes so as to allow said tubes to easily and removably pass therethrough for cutting said plurality of apertures in said hollow elongated member.
Claim 7
Independent Claim
29 words
The apparatus of claims 3 or 4 wherein said cutting means have a cutting end and are connected by an alignment member at their ends opposite said cutting end.
Claim 8
Dependent Claim
28 words
The apparatus of claim 6 wherein said alignment member contacts said cube so that the cutting ends do not pass the longitudinal axis of said hollow elongated member.
Claim 9
Dependent Claim
44 words
The apparatus of claim 4 wherein said alignment apertures are of slightly greater size and dimension than said rod members so as to allow said rod members to easily and removably pass therethrough for cutting said plurality of apertures in said hollow elongated member.
Claim 10
Dependent Claim
29 words
The apparatus of claim 2 wherein each of said sets of alignment apertures of the directing means extends along the diagonal line across a face of the metal cube.
Claim 11
Dependent Claim
37 words
The apparatus of claim 1 wherein said positioning means comprises a stop member for prevention of insertion of an end of said hollow elongated member beyond a predetermined point in said elongated aperture of said metal cube.
Claim 12
Dependent Claim
15 words
The apparatus of claim 1 wherein said elongated aperture extends only partially through said cube.
Claim 13
Dependent Claim
60 words
The apparatus of claim 1, wherein said directing means is positioned so that said apertures are formed at an angle with respect to the axis of said elongated member such that, when said apertures are viewed perpendicular to the longitudinal axis of said hollow elongated member, there is no direct linear access to the interior of said hollow elongated member.
References Cited (Backward Citations)
US676781A
Cited
US676782A
Cited
US984425A
Cited
US1544856A
Cited
US2116083A
Cited
US3489045A
Cited
US3747450A
Cited
US3739461A
Cited
US3996832A
Cited
US4149695A
Cited
US4181051A
Cited
US4750877A
Cited
US4554849A
Cited
US4647419A
Cited
US4712950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-19 | 1994-05-21 | 1994-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-19 | 1998-05-21 | 1998-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-19 | 2002-05-21 | 2002-11-20 | $7700.00 | Window Closed / Lapsed |