Patent US5102413A successfully refreshed from Google Patents.
US5102413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable bone fixation device
Assignee: Individual
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Filing: 1990-11-14
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Granted: 1992-04-07
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Expires: 2010-11-14
Abstract
Abstract A device for intramedullary fixation of a fractured bone is disclosed. The device includes an elongate support rod and an inflatable bladder which is attached to the support rod and includes a plurality of bone-contacting surfaces. The device is inserted into the medullary cavity of the broken bone and the bladder is inflated to expand the bladder and extend the bone-contacting surfaces to the inner wall of the bone, where they adhere to and stabilize the bone.
Inventors
- 👤 Satish B. Poddar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3662; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/72; A61B17/7233; A61B17/7258; A61B17/7266; A61B90/00; A61B90/02; A61B2017/00535; A61B2017/00557; A61F2002/30001; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30535; A61F2002/30579; A61F2002/30581; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2230/00; A61F2230/0063; A61F2230/0069
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
57 words
An intramedullary bone fixation device comprising: (a) an elongate hollow support rod having at least one aperture formed therein; (b) an inflatable bladder disposed within said support rod, said bladder including at least one bone-contacting surface which extends through said aperture and contacts said bone when said bladder is inflated; and (c) means for inflating said bladder.
Claim 2
Dependent Claim
57 words
An intramedullary bone fixation device comprising: (a) an elongate hollow support rod having at least one aperture formed therein; (b) an inflatable bladder disposed within said support rod, said bladder including at least one bone-contacting surface which extends through said aperture and contacts said bone when said bladder is inflated; and (c) means for inflating said bladder.
Claim 3
Dependent Claim
13 words
A device in accordance with claim 1 wherein said bone-contacting surface is serrated.
Claim 4
Dependent Claim
19 words
A device in accordance with claim 2 further comprising an adhesive layer applied to each of said bone-contacting surfaces.
Claim 5
Dependent Claim
100 words
An intramedullary bone fixation device comprising: (a) an elongate support rod having an outer surface, said rod including an inflation channel and a plurality of inflation apertures each connected to said inflation channel; (b) an inflatable bladder including a inner wall and an outer wall, said inner wall adhered to said outer surface of said support rod and including a plurality of bladder apertures each in substantial alignment with one of said inflation apertures, and said outer wall including at least one bone-contacting surface for contacting said bone when said bladder is inflated; and (c) means for inflating said bladder.
Claim 6
Dependent Claim
100 words
An intramedullary bone fixation device comprising: (a) an elongate support rod having an outer surface, said rod including an inflation channel and a plurality of inflation apertures each connected to said inflation channel; (b) an inflatable bladder including a inner wall and an outer wall, said inner wall adhered to said outer surface of said support rod and including a plurality of bladder apertures each in substantial alignment with one of said inflation apertures, and said outer wall including at least one bone-contacting surface for contacting said bone when said bladder is inflated; and (c) means for inflating said bladder.
Claim 7
Dependent Claim
13 words
A device in accordance with claim 4 wherein said bone-contacting surface is serrated.
Claim 8
Dependent Claim
19 words
A device in accordance with claim 5 further including an adhesive layer applied to each of said bone-contacting surfaces.
Claim 9
Dependent Claim
65 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder carried by said support rod, said bladder including at least one bone-contacting region for contacting said bone when said bladder is inflated, said bone-contacting region being serrated when said bladder is inflated; (c) an adhesive layer applied to each of said bone-contacting regions; and (d) means for inflating said bladder.
Claim 10
Dependent Claim
65 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder carried by said support rod, said bladder including at least one bone-contacting region for contacting said bone when said bladder is inflated, said bone-contacting region being serrated when said bladder is inflated; (c) an adhesive layer applied to each of said bone-contacting regions; and (d) means for inflating said bladder.
Claim 11
Dependent Claim
76 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder carried by said support rod, said bladder including at least one bone-contacting region for contacting said bone when said bladder is inflated and said support rod including a longitudinal channel for receiving said bladder and at least one aperture aligned with said bone-contacting region through which said region expands when said bladder is inflated; and (c) means for inflating said bladder.
Claim 12
Dependent Claim
76 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder carried by said support rod, said bladder including at least one bone-contacting region for contacting said bone when said bladder is inflated and said support rod including a longitudinal channel for receiving said bladder and at least one aperture aligned with said bone-contacting region through which said region expands when said bladder is inflated; and (c) means for inflating said bladder.
Claim 13
Dependent Claim
52 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable sleeve surrounding said rod, said sleeve including at least one bone-contacting region for contacting said bone when said bladder is inflated; and (c) a means for inflating said bladder, said means including a longitudinal channel in said rod.
Claim 14
Dependent Claim
52 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable sleeve surrounding said rod, said sleeve including at least one bone-contacting region for contacting said bone when said bladder is inflated; and (c) a means for inflating said bladder, said means including a longitudinal channel in said rod.
Claim 15
Dependent Claim
54 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder carried by said support rod, said bladder including at least one bone contacting region which is expandable to form a bone support finger for contacting said bone when said bladder is inflated, and (c) means for inflating said bladder.
Claim 16
Dependent Claim
54 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder carried by said support rod, said bladder including at least one bone contacting region which is expandable to form a bone support finger for contacting said bone when said bladder is inflated, and (c) means for inflating said bladder.
Claim 17
Dependent Claim
58 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder having an inner wall attached to said support rod and an outer wall, said outer wall including at least one serrated bone-contacting region formed therein; (c) an adhesive layer applied to each of said bone-contacting regions; and (d) means for inflating said bladder.
Claim 18
Dependent Claim
58 words
An intramedullary bone fixation device comprising: (a) an elongate support rod; (b) an inflatable bladder having an inner wall attached to said support rod and an outer wall, said outer wall including at least one serrated bone-contacting region formed therein; (c) an adhesive layer applied to each of said bone-contacting regions; and (d) means for inflating said bladder.
References Cited (Backward Citations)
US3812841A
Cited
US3879887A
Cited
US3993056A
Cited
US4169467A
Cited
US4313434A
Cited
US4799914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-07 | 1995-10-07 | 1996-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-07 | 1999-10-07 | 2000-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-07 | 2003-10-07 | 2004-04-07 | $7700.00 | Window Closed / Lapsed |