Patent US967810A successfully refreshed from Google Patents.
Patent US5976171A successfully refreshed from Google Patents.
US5976171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Access platform for internal mammary dissection
Assignee: Maquet Cardiovascular LLC
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Filing: 1996-03-20
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Granted: 1999-11-02
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Expires: 2016-03-20
Abstract
Abstract An access platform having a first and a second blade interconnected to a spreader member that laterally drives the blades apart or together and support pads interconnected to a blade. A torsional member is operably interconnected to a blade and the spreader member and is used to vertically displace the interconnected blade and, thus, increase a surgeon's working space and visual access for the dissection of an internal mammary artery. A tissue retractor interconnected to the blades and is used to draw the soft tissue around an incision away from the surgeon's working area.
Inventors
- 👤 Charles S. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:07
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61B17/3421; A61B17/3423; A61B17/02; A61B17/0206; A61B90/00; A61B90/50; A61B17/025; A61B2017/3427; A61B2017/348; A61B2017/3482; A61B2017/349
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
An access platform comprising a spreader member, a first blade and a second blade pivotally interconnected to said spreader member, said first and second blades being capable of rotating about an axis of rotation parallel to said spreader member, and a offset member interposed between and operably connected to said first blade and said spreader member, with adjustment of said offset member causing generally vertical displacement of said first blade relative to said second blade.
Claim 2
Dependent Claim
75 words
An access platform comprising a spreader member, a first blade and a second blade pivotally interconnected to said spreader member, said first and second blades being capable of rotating about an axis of rotation parallel to said spreader member, and a offset member interposed between and operably connected to said first blade and said spreader member, with adjustment of said offset member causing generally vertical displacement of said first blade relative to said second blade.
Claim 3
Dependent Claim
22 words
The surgical access platform of claim 1, wherein said offset member further comprises a first member operably connected to a second member.
Claim 4
Dependent Claim
16 words
The surgical access platform of claim 2, wherein said first member further comprises a reduction gear.
Claim 5
Dependent Claim
16 words
The surgical access platform of claim 2, wherein said first member further comprises a ratchet mechanism.
Claim 6
Dependent Claim
17 words
The surgical access platform of claim 1, further comprising a tissue retractor connected to said first blade.
Claim 7
Dependent Claim
34 words
The surgical access platform of claim 5, further comprising a blade arm extending from said first blade and operably connected to said offset member, said tissue retractor being pivotally connected to said blade arm.
Claim 8
Dependent Claim
17 words
The surgical access platform of claim 5, wherein said tissue retractor comprises a plurality of retractor fingers.
Claim 9
Dependent Claim
23 words
The surgical access platform of claim 7, wherein said plurality of retractor fingers are adjustable between a first position and a second position.
Claim 10
Dependent Claim
14 words
The access platform of claim 1 wherein said spreader member comprises an adjustable hub.
Claim 11
Dependent Claim
42 words
The access platform of claim 5 wherein said hub comprises upper and lower hub members, said upper hub member being operably connected to said lower hub member, said first and second blades being interconnected to said upper and lower hub members, respectively.
Claim 12
Dependent Claim
23 words
The access platform of claim 10 wherein said hub further comprises a harmonic gear assembly operably interconnecting said upper and lower hub members.
Claim 13
Dependent Claim
17 words
The surgical access platform of claim 1, wherein said spreader member comprises a rack and pinion assembly.
References Cited (Backward Citations)
US34150A
Cited
GB168216A
Cited
US4049000A
Cited
US4434791A
Cited
US4747395A
Cited
US4627421A
Cited
US4726356A
Cited
USRE34150E
Cited
US4829985A
Cited
US4884559A
Cited
US4865019A
Cited
US5052373A
Cited
US5167223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-01 | 2003-05-03 | 2003-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-01 | 2007-05-03 | 2007-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-01 | 2011-05-03 | 2011-11-02 | $7700.00 | Window Closed / Lapsed |