Patent US6475221B1 successfully refreshed from Google Patents.
US6475221B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for domed cutting tool
Assignee: Greatbatch Medical SA
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Filing: 1999-03-18
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Granted: 2002-11-05
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Expires: 2019-03-18
Abstract
Abstract The surgical reamer ( 20 ) has a hollow dome ( 24 ) with apertures ( 26 ) spaced apart arranged in arcs ( 28 ) extending from an apex ( 30 ) of the dome to the base portion ( 32 ) of the dome, and removable teeth ( 22 ) positioned in the apertures. Each cutting tooth ( 22 ) has a flange ( 52 ) that is aligned flush with the external surface of the dome ( 24 ), and a raised cutting edge ( 50 ) extending above the flange and the external surface ( 36 ) of the dome, and an interior passageway ( 39 ) communicating between the outside and inside of the dome. In one embodiment, a base plate ( 56 ) is removably secured on the base portion ( 32 ) of the dome ( 24 ) to provide closure of the central cavity (34) of the dome.
Inventors
- 👤 Patrick M. White
- 👤 Meyer Fishbein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1684; A61B17/1664; A61B17/1666
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
103 words
A rotary reamer assembly comprising: a hollow reamer body having a wall with an external surface and a base, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; a shaft provided for transmitting torque for rotation of the reamer body; and a retaining member extending diametrically across the base including a central embossed portion, for retaining the shaft and the reamer body in a fixed relative position.
Claim 2
Dependent Claim
103 words
A rotary reamer assembly comprising: a hollow reamer body having a wall with an external surface and a base, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; a shaft provided for transmitting torque for rotation of the reamer body; and a retaining member extending diametrically across the base including a central embossed portion, for retaining the shaft and the reamer body in a fixed relative position.
Claim 3
Dependent Claim
16 words
The assembly of claim 1 wherein the shaft is adapted to articulate with the embossed portion.
Claim 4
Dependent Claim
26 words
The assembly of claim 1 wherein the base further comprises a periphery, and the retaining member has terminal ends that are affixed to the periphery, respectively.
Claim 5
Dependent Claim
18 words
The assembly of claim 3 wherein the terminal ends are affixed to a back side of the periphery.
Claim 6
Dependent Claim
12 words
The assembly of claim 1 wherein the embossment has a rounded shape.
Claim 7
Dependent Claim
22 words
The assembly of claim 1 wherein the retaining member has a considerably flat configuration with terminal ends that extend into the base.
Claim 8
Dependent Claim
13 words
The assembly of claim 1 wherein the embossed portion is a flat embossment.
Claim 9
Dependent Claim
23 words
The assembly of claim 1 wherein the base further comprises a periphery and the retaining member is a bar attached to the periphery.
Claim 10
Dependent Claim
14 words
The assembly of claim 1 wherein the retaining member further comprising a leaf spring.
Claim 11
Dependent Claim
37 words
The assembly of claim 1 further comprising closure means adapted to be secured to the base for transmitting torque from the shaft to the reamer body, while keeping the bone and tissue contained in the central cavity.
Claim 12
Dependent Claim
115 words
A rotary surgical reamer assembly comprising: a hollow reamer body having a wall with an external surface and a base having a periphery, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; a shaft provided for transmitting torque for rotation of the reamer body; and a retaining member including a rounded central portion having a flat embossment, the retaining member extending diametrically across the base and affixed to the periphery for retaining the shaft and the reamer body together.
Claim 13
Dependent Claim
115 words
A rotary surgical reamer assembly comprising: a hollow reamer body having a wall with an external surface and a base having a periphery, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; a shaft provided for transmitting torque for rotation of the reamer body; and a retaining member including a rounded central portion having a flat embossment, the retaining member extending diametrically across the base and affixed to the periphery for retaining the shaft and the reamer body together.
Claim 14
Dependent Claim
37 words
The assembly of claim 11 further comprising closure means adapted to be secured to the base for transmitting torque from the shaft to the reamer body, while keeping the bone and tissue contained in the central cavity.
Claim 15
Dependent Claim
119 words
A rotary surgical reamer assembly comprising: a hollow reamer body having a wall with an external surface and a base having a periphery, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; a shaft provided for transmitting torque for rotation of the reamer body; and a considerably flat retaining member including a rounded central embossment having terminal ends extending into the base, the retaining member extending diametrically across the base for retaining the shaft and the reamer body in a fixed relative position.
Claim 16
Dependent Claim
119 words
A rotary surgical reamer assembly comprising: a hollow reamer body having a wall with an external surface and a base having a periphery, the wall defining a central cavity and a plurality of passageways through the wall defining cutting sites, the passageways communicating between the external surface of the wall and the central cavity for passage of removed bone and tissue through the wall into the central cavity; a shaft provided for transmitting torque for rotation of the reamer body; and a considerably flat retaining member including a rounded central embossment having terminal ends extending into the base, the retaining member extending diametrically across the base for retaining the shaft and the reamer body in a fixed relative position.
Claim 17
Dependent Claim
37 words
The assembly of claim 13 further comprising closure means adapted to be secured to the base for transmitting torque from the shaft to the reamer body, while keeping the bone and tissue contained in the central cavity.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-11-04 | 2006-05-06 | 2006-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-04 | 2010-05-06 | 2010-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-04 | 2014-05-06 | 2014-11-05 | $7700.00 | Window Closed / Lapsed |