Patent US5067483A successfully refreshed from Google Patents.
US5067483A
Expired / Lapsed
US
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Cervical traction device
Assignee: Individual
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Filing: 1990-08-21
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Granted: 1991-11-26
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Expires: 2010-08-21
Abstract
Abstract A portable cervical traction device for applying tractive forces to the cervical spine of a patient, having a head support means for the neck and head of the patient, including an occipital pad which has a reversed angled surface which causes increased cervical flexion when the device is in use and while ensuring contact between the back of the head and the occipital pad for comfort. The angle of the tractive force is also adjustable so as to isolate portions of the cervical spine for application of the traction. The invention further allows the patient to vary the tractive force applied through the use of an air cylinder, which is directly affixed to the head support means.
Inventors
- 👤 William L. Freed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:58
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0218; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1604; A61H2201/1607
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
245 words
A cervical traction apparatus comprising: a base, a head support means, said head support means comprising a neck receiving portion and an occipital pad having a top surface, said occipital pad being of decreasing thickness with the thickest portion of said pad being adjacent to said neck receiving means and being approximately the same height as said neck receiving portion and the thinnest portion of said pad being opposite said neck receiving portion so that said top surface is disposed at an acute angle from the plane of said neck receiving portion, said occipital pad being angled so that the back of the head of the patient and not the head and neck junction is in contact with the pad when in use, and a drive means, said drive means being attached to said head support means and also being connected to said base, wherein when in use said drive means selectively moves said head support means with respect to said base to apply cervical traction to a patient, the back of whose head is disposed on said occipital pad and whose neck is disposed in said neck receiving potion, said pad remaining in contact with the back of the patient's head as traction is applied, as the patient's head slips on said pad thereby avoiding pressure on the greater occipital nerve and artery and at the same time the angle of said pad tilting the patient's head forward providing cervical flexion for the patient.
Claim 2
Dependent Claim
245 words
A cervical traction apparatus comprising: a base, a head support means, said head support means comprising a neck receiving portion and an occipital pad having a top surface, said occipital pad being of decreasing thickness with the thickest portion of said pad being adjacent to said neck receiving means and being approximately the same height as said neck receiving portion and the thinnest portion of said pad being opposite said neck receiving portion so that said top surface is disposed at an acute angle from the plane of said neck receiving portion, said occipital pad being angled so that the back of the head of the patient and not the head and neck junction is in contact with the pad when in use, and a drive means, said drive means being attached to said head support means and also being connected to said base, wherein when in use said drive means selectively moves said head support means with respect to said base to apply cervical traction to a patient, the back of whose head is disposed on said occipital pad and whose neck is disposed in said neck receiving potion, said pad remaining in contact with the back of the patient's head as traction is applied, as the patient's head slips on said pad thereby avoiding pressure on the greater occipital nerve and artery and at the same time the angle of said pad tilting the patient's head forward providing cervical flexion for the patient.
Claim 3
Dependent Claim
45 words
The apparatus of claim 1 wherein said head support means includes a means for adjusting the angle of said head support means with respect to said base so as to isolate the tractive force on a particular section of the cervical spine when in use.
Claim 4
Dependent Claim
66 words
The apparatus of claim 2 wherein said means for adjusting comprises an adjustable rod, said adjustable rod having a first end which is fixed to said base and a second end which is attached to said base by a means for raising and lowering, which may be selectively positioned to vary the height of said second end of said rod with respect to said first end.
Claim 5
Dependent Claim
64 words
The apparatus of claim 3 wherein said means for raising and lowering comprises a support attached to said rod, said support being selectively connected to one pair of a series of pairs of holes disposed in said base, the selection of one of said pairs of holes determining the angle of said adjustable rod and said head support means with respect to said base.
Claim 6
Dependent Claim
20 words
The apparatus of claim 1 wherein said neck receiving portion comprises a pair of neck pads bounding a recessed portion.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 wherein said occipital pad has a generally triangular cross-section.
Claim 8
Dependent Claim
74 words
The apparatus of claim 1 wherein said drive means comprises a rod connected to said base, an air cylinder being movably disposed on said rod, said air cylinder being fixed to said head support means, said air cylinder moving on said rod when air pressure is applied to it by an air pressure means, the movement of said air cylinder on said rod also moving said head support means with respect to said base.
Claim 9
Dependent Claim
50 words
The apparatus of claim 8 wherein said air pressure means comprises an air pressure bulb and a valve, said bulb being connected to said air cylinder by a tube, said bulb being operated by the patient when said apparatus is in use to apply air pressure to said air cylinder.
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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) | 1994-11-25 | 1995-05-27 | 1995-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-25 | 1999-05-27 | 1999-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-25 | 2003-05-27 | 2003-11-26 | $7700.00 | Window Closed / Lapsed |