Patent US3859992A successfully refreshed from Google Patents.
US3859992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum-operated acetabular cup holder and positioner
Assignee: Individual
•
Filing: 1973-06-06
•
Granted: 1975-01-14
•
Expires: 1993-06-06
Abstract
Abstract A vacuum-operated holding and positioning instrument is provided for use in inserting an acetabular cup during hip surgery. The instrument includes a cup-engaging head, and means for forming at least a partial vacuum between the head and the cup to retain the cup on the head. A suction passage is formed through an instrument tube and handle between a port in the head and a remote suction generator. A thumb-operated suction vent is provided to selectively break the vacuum and deposit the cup at the desired surgical site.
Inventors
- 👤 Harlan C Amstutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4603; A61F2/4609; A61F2002/30001; A61F2002/30316; A61F2002/30535; A61F2002/30589; A61F2002/4685; A61F2250/00; A61F2250/0058; A61F2250/0069; A61F2250/007
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
In an instrument for holding and positioning an acetabular cup during anthroplastic surgery, the improvement comprising a head member having a distal tip portion contoured to mate with the interior surface of said cup and a flange extending radially therefrom, said flange having a planar surface to locate said cup upon said head member, a resilient member mounted on said tip for forming a seal of at least partial air-tightness with the surface of the cup interior and vacuum-forming means including means forming a fluid pathway between a vacuum port formed in said head member and remote suction means for forming at least a partial atmospheric vacuum between said head member and said cup.
Claim 2
Dependent Claim
114 words
In an instrument for holding and positioning an acetabular cup during anthroplastic surgery, the improvement comprising a head member having a distal tip portion contoured to mate with the interior surface of said cup and a flange extending radially therefrom, said flange having a planar surface to locate said cup upon said head member, a resilient member mounted on said tip for forming a seal of at least partial air-tightness with the surface of the cup interior and vacuum-forming means including means forming a fluid pathway between a vacuum port formed in said head member and remote suction means for forming at least a partial atmospheric vacuum between said head member and said cup.
Claim 3
Dependent Claim
39 words
A device according to claim 1 including selectively operable venting means communicating with said fluid pathway means for selectively breaking said vacuum between said tip and said cup, thereby permitting said cup to be selectively released from said instrument.
Claim 4
Dependent Claim
63 words
A device according to claim 2 wherein said suction vent means includes valve seat means and a ball valve member positioned for engagement with said valve seat means to seal said valve seat means and said vacuum forming means from communication with outside atmosphere, and lever means for selectively moving said ball valve member to and from engagement with said valve seat means.
Claim 5
Dependent Claim
30 words
A device according to claim 3 wherein said ball valve member is resiliently urged toward said ball valve seat means, thereby positioning said valve means in a normally closed configuration.
Claim 6
Dependent Claim
38 words
A device according to claim 4 Wherein said lever means includes retaining means for engaging said ball valve member and pulling said ball valve member away from said ball seat means when said lever means is selectively actuated.
Claim 7
Dependent Claim
48 words
A device according to claim 1 wherein said means forming a fluid pathway includes a tube member, a handle member, and a hose barb member, said members having inter-communicating hollow passageways formed therein for operably connecting said vacuum port in said head member with said remote suction means.
Claim 8
Dependent Claim
31 words
An instrument according to claim 1 including pusher arm means engaging said instrument to provide additional manual grasping means for assisting in locating and inserting said acetabular cup during said surgery.
Claim 9
Dependent Claim
33 words
A device according to claim 7 wherein said pusher means includes a pusher rod member engaging said head member, and a second handle member connected to the free end of said rod 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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |