Patent US3748021A successfully refreshed from Google Patents.
US5730757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Access platform for internal mammary dissection
Assignee: Nokia of America Corp
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Filing: 1996-02-20
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Granted: 1998-03-24
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Expires: 2016-02-20
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 the first blade. A torsional member is operably interconnected to the first blade and the spreader member and is used to vertically displace the first blade in either direction 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 is used to draw the soft tissue around an incision away from the surgeon's working area.
Inventors
- 👤 Federico J. Benetti
- 👤 Charles S. Taylor
- 👤 William N. Aldrich
- 👤 Ivan Sepetka
- 👤 Robert G. Matheny
- 👤 Eugene E. Reis
- 👤 Brent Regan
- 👤 Richard M. Ferrari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:56
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: 48
Claim 1
Independent Claim
84 words
A surgical access platform comprising a spreader member, first and second blade interconnected to said spreader member, said first and second blades being adapted to engage opposing sides of a chest incision, with adjustment of said spreader member causing lateral displacement of said first blade relative to said second blade, and a displacement member operably interconnected to said first blade and said spreader member, with adjustment of said displacement member causing generally vertical bi-directional displacement of said first blade relative to said second blade.
Claim 2
Dependent Claim
84 words
A surgical access platform comprising a spreader member, first and second blade interconnected to said spreader member, said first and second blades being adapted to engage opposing sides of a chest incision, with adjustment of said spreader member causing lateral displacement of said first blade relative to said second blade, and a displacement member operably interconnected to said first blade and said spreader member, with adjustment of said displacement member causing generally vertical bi-directional displacement of said first blade relative to said second blade.
Claim 3
Dependent Claim
17 words
The surgical access platform of claim 1, further comprising a support pad interconnected to said first blade.
Claim 4
Dependent Claim
18 words
The surgical access platform of claim 2, wherein said support pad is adjustably interconnected to said first blade.
Claim 5
Dependent Claim
26 words
The surgical access platform of claim 1, further comprising a first support pad and a second support pad interconnected to said first and second blades respectively.
Claim 6
Dependent Claim
15 words
The surgical access platform of claim 1, wherein said spreader member further comprises a hub.
Claim 7
Dependent Claim
21 words
The surgical access platform of claim 5, wherein said hub further comprises an upper hub rotatably connected to a lower hub.
Claim 8
Dependent Claim
26 words
The surgical access platform of claim 5, wherein said hub further comprises a ratchet mechanism operably interconnecting a first hub member to a second hub member.
Claim 9
Dependent Claim
27 words
The surgical access platform of claim 5, wherein said hub further comprises a harmonic gear assembly operably interconnecting a first hub member to a second hub member.
Claim 10
Dependent Claim
22 words
The surgical access platform of claim 6, further comprising first and second spreader arms extending from said upper and lower hubs respectively.
Claim 11
Dependent Claim
18 words
The surgical access platform of claim 1, wherein said spreader member further comprises a rack and pinion assembly.
Claim 12
Dependent Claim
45 words
The surgical access platform of claim 10, wherein said rack and pinion assembly further comprises a pinion housing slidably received over said rack and interconnected to said first blade, and a pinion wrench rotatably received in said pinion housing and operably connected to said rack.
Claim 13
Dependent Claim
16 words
The surgical access platform of claim 1, wherein said first blade further comprises an elongated vane.
Claim 14
Dependent Claim
16 words
The surgical access platform of claim 1, wherein said first blade further comprises a recessed throat.
Claim 15
Dependent Claim
22 words
The surgical access platform of claim 1, wherein the displacement member further comprises a first member operably connected to a second member.
Claim 16
Dependent Claim
16 words
The surgical access platform of claim 14, wherein said first member further comprises a reduction gear.
Claim 17
Dependent Claim
16 words
The surgical access platform of claim 14, wherein said first member further comprises a ratchet mechanism.
Claim 18
Dependent Claim
21 words
The surgical access platform of claim 14, wherein said first and second members further comprises a curved rack and pinion assembly.
Claim 19
Dependent Claim
18 words
The surgical access platform of claim 1, further comprising a tissue retractor operably interconnected to said first blade.
Claim 20
Dependent Claim
24 words
The surgical access platform of claim 1, further comprising a blade arm extending from said first blade and operably connected to said torsional member.
Claim 21
Dependent Claim
24 words
The surgical access platform of claim 19, further comprising a tissue retractor pivotally connected to said blade arm and connected to said first blade.
Claim 22
Dependent Claim
65 words
The surgical access platform of claim 1 further comprising first and second elongated stanchions coupled to said first and second blades, respectively, and said spreader member, said first stanchion being operably coupled to said displacement member, said first stanchion being adjustable in a lateral direction relative to said second stanchion, said first blade being displaceable in a generally vertical direction relative to said second blade.
Claim 23
Dependent Claim
46 words
The access platform of claim 21, further comprising first and second rotational members mounted adjacent the top of said first and second stanchions, and first and second blade arms extending outwardly from said first and second rotational members and connecting to said first and second blades.
Claim 24
Dependent Claim
22 words
The surgical access platform of claim 1, further comprising a second displacement member interconnected to said second blade and said spreader member.
Claim 25
Dependent Claim
42 words
The surgical access platform of claim 1, further comprising a blade arm connected to said second blade and interconnected to said spreader member, and a surgical instrument attached to said blade arm and extendable into the chest cavity through a chest incision.
Claim 26
Dependent Claim
22 words
The surgical access platform of claim 24, wherein said surgical instrument comprises a stabilizer, said stabilizer being positionable on a beating heart.
Claim 27
Dependent Claim
80 words
A surgical access platform comprising a hub, first and second blade interconnected to said hub, said first and second blades being adapted to engage opposing incision edges of a chest incision, with adjustment of said hub causing relative lateral displacement between said first and said second blades, and a torsional member operably interconnected to said first blade and said hub, with adjustment of said torsional member causing generally vertical bi-directional displacement of said first blade relative to said second blade.
Claim 28
Dependent Claim
80 words
A surgical access platform comprising a hub, first and second blade interconnected to said hub, said first and second blades being adapted to engage opposing incision edges of a chest incision, with adjustment of said hub causing relative lateral displacement between said first and said second blades, and a torsional member operably interconnected to said first blade and said hub, with adjustment of said torsional member causing generally vertical bi-directional displacement of said first blade relative to said second blade.
Claim 29
Dependent Claim
17 words
The surgical access platform of claim 26, further comprising a support pad interconnected to said first blade.
Claim 30
Dependent Claim
18 words
The surgical access platform of claim 27 wherein said support pad is adjustably interconnected to said first blade.
Claim 31
Dependent Claim
26 words
The surgical access platform of claim 26, further comprising a first support pad and a second support pad interconnected to said first and second blades respectively.
Claim 32
Dependent Claim
21 words
The surgical access platform of claim 26, wherein said hub further comprises an upper hub rotatably connected to a lower hub.
Claim 33
Dependent Claim
26 words
The surgical access platform of claim 26, wherein said hub further comprises a ratchet mechanism operably interconnecting a first hub member to a second hub member.
Claim 34
Dependent Claim
27 words
The surgical access platform of claim 26, wherein said hub further comprises a harmonic gear assembly operably interconnecting a first hub member to a second hub member.
Claim 35
Dependent Claim
22 words
The surgical access platform of claim 30, further comprising first and second spreader arms extending from said upper and lower hubs respectively.
Claim 36
Dependent Claim
16 words
The surgical access platform of claim 26, wherein said first blade further comprises an elongated vane.
Claim 37
Dependent Claim
16 words
The surgical access platform of claim 26, wherein said first blade further comprises a recessed throat.
Claim 38
Dependent Claim
22 words
The surgical access platform of claim 26, wherein the torsional member further comprises a first member operably connected to a second member.
Claim 39
Dependent Claim
16 words
The surgical access platform of claim 36, wherein said first member further comprises a reduction gear.
Claim 40
Dependent Claim
16 words
The surgical access platform of claim 36, wherein said first member further comprises a ratchet mechanism.
Claim 41
Dependent Claim
18 words
The surgical access platform of claim 26, further comprising a tissue retractor operably interconnected to said first blade.
Claim 42
Dependent Claim
24 words
The surgical access platform of claim 26, further comprising a blade arm extending from said first blade and operably connected to said torsional member.
Claim 43
Dependent Claim
24 words
The surgical access platform of claim 40, further comprising a tissue retractor pivotally connected to said blade arm and connected to said first blade.
Claim 44
Independent Claim
128 words
A method of thoracic surgery comprising the steps of providing a surgical access platform, said platform comprising first and second blades adapted to engage opposing sides of a chest incision, a spreader member interconnected to said first and second blades, and a displacement member operably interconnected to said first blade and said spreader member, with adjustment of said displacement member causing generally vertical bi-directional displacement of said first blade relative to said second blade, positioning said first and second blades in a chest incision to engage opposing sides of the incision, spreading said first blade relative to said second blade in a generally lateral direction, and displacing said first blade relative to said second blade in a generally vertical direction to vertically offset opposing sides of the incision.
Claim 45
Independent Claim
128 words
A method of thoracic surgery comprising the steps of providing a surgical access platform, said platform comprising first and second blades adapted to engage opposing sides of a chest incision, a spreader member interconnected to said first and second blades, and a displacement member operably interconnected to said first blade and said spreader member, with adjustment of said displacement member causing generally vertical bi-directional displacement of said first blade relative to said second blade, positioning said first and second blades in a chest incision to engage opposing sides of the incision, spreading said first blade relative to said second blade in a generally lateral direction, and displacing said first blade relative to said second blade in a generally vertical direction to vertically offset opposing sides of the incision.
Claim 46
Dependent Claim
40 words
The method of thoracic surgery of claim 42, further comprising the steps of providing a support pad interconnected to said first blade, positioning said support pad on the chest adjacent the sternum, and depressing the sternum adjacent said support pad.
Claim 47
Dependent Claim
45 words
The method of thoracic surgery of claim 42, further comprising the steps of providing a second displacement member interconnected to said second blade and said spreader member, and displacing said second blade in a generally vertical direction opposite to the displacement of said first blade.
Claim 48
Dependent Claim
34 words
The method of thoracic surgery of claim 42, further comprising the steps of providing a stabilizer interconnected to said second blade, and positioning said stabilizer on a beating heart to stabilize said beating heart.
References Cited (Backward Citations)
GB168216A
Cited
US4049000A
Cited
US4434791A
Cited
US4747395A
Cited
US4627421A
Cited
USRE34150E
Cited
US4726356A
Cited
US4829985A
Cited
US4702230A
Cited
US4852552A
Cited
US4884559A
Cited
US4865019A
Cited
US5052373A
Cited
US4971037A
Cited
US4993862A
Cited
US5167223A
Cited
GB2267827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-03-23 | 2001-09-22 | 2002-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-23 | 2005-09-22 | 2006-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-23 | 2009-09-22 | 2010-03-24 | $7700.00 | Window Closed / Lapsed |