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US3698670A Expired / Lapsed US ⏱️ 0.0 years remaining

Vertebral fracture prevention system

Assignee: United States Department of the Navy
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Filing: 1970-12-17
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Granted: 1972-10-17
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Expires: 1990-12-17
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Abstract

Abstract Disclosed herewith is a vertebral fracture prevention system which incorporates motor driven body restraint devices for positioning and holding a person in a safe postural position within a rapidly moving craft immediately prior to his being subjected to +Gz acceleration generated by any means including forceful ejection. Also included is a resilient inflatable bag or other device that is disposed against the back of said person which is inflated or otherwise actuated in such a manner immediately prior to exposure to +Gz acceleration as to cause the thoraco-lumbar region of the spinal column thereof to assume an arcuate posterial curvature due to hyperextension thereat, so as to prevent wedge fractures of the forward edges of the adjacent vertebrae thereof as a result of their being exposed to extreme anterior bending acceleration forces.

Inventors

  • 👤 Channing L Ewing

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 15:07
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/02

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 171 words
A system for preventing the fracture of spinal column vertebrae of a person exposed to dangerous forces of acceleration while located within a vehicle, comprising in combination: means for firmly securing said person in a predetermined restrained postural position within an envelope-like confinement means located within said vehicle in response to a predetermined actuation signal; means disposed against the thoraco-lumbar region of the spinal column of said person for timely effecting a predetermined posterior arcuate curvature thereof in programmed response to the aforesaid predetermined actuation signal and immediately after said person is firmly secured within said predetermined envelope-like confinement means, said means including a resilient bag capable of being inflated and expanded by a pressurized gas, and means connected to said resilient bag for timely supplying said gas thereto in response to said predetermined actuation signal; and means effectively connected to said predetermined envelope-like confinement means for effecting a predetermined disposition thereof and the person firmly secured therein with respect to said vehicle in timely response to said predetermined actuation signal.
Claim 2
Independent Claim 171 words
A system for preventing the fracture of spinal column vertebrae of a person exposed to dangerous forces of acceleration while located within a vehicle, comprising in combination: means for firmly securing said person in a predetermined restrained postural position within an envelope-like confinement means located within said vehicle in response to a predetermined actuation signal; means disposed against the thoraco-lumbar region of the spinal column of said person for timely effecting a predetermined posterior arcuate curvature thereof in programmed response to the aforesaid predetermined actuation signal and immediately after said person is firmly secured within said predetermined envelope-like confinement means, said means including a resilient bag capable of being inflated and expanded by a pressurized gas, and means connected to said resilient bag for timely supplying said gas thereto in response to said predetermined actuation signal; and means effectively connected to said predetermined envelope-like confinement means for effecting a predetermined disposition thereof and the person firmly secured therein with respect to said vehicle in timely response to said predetermined actuation signal.
Claim 3
Dependent Claim 11 words
The system of claim 1, wherein said vehicle is an aircraft.
Claim 4
Dependent Claim 12 words
The system of claim 1, wherein said vehicle is a space craft.
Claim 5
Dependent Claim 12 words
The system of claim 1, wherein said vehicle is an underwater craft.
Claim 6
Dependent Claim 13 words
The system of claim 1, wherein said vehicle is a water surface craft.
Claim 7
Dependent Claim 12 words
The system of claim 1 wherein said vehicle is a land vehicle.
Claim 8
Dependent Claim 118 words
The system of claim 1, wherein said means effectively connected to said predetermined envelope-like confinement means for effecting a predetermined disposition thereof and the person firmly secured therein with respect to said vehicle in timely response to said predetermined actuation signal comprises: a pressurized gas supply means; a valve means connected to the output of said pressurized gas supply means for timely allowing the pressurized gas therefrom to pass therethrough in response to the aforesaid predetermined actuation signal; and motor means connected between the output of said valve means and the aforesaid predetermined envelope-like confinement means for effecting said predetermined disposition thereof with respect to said vehicle in response to the pressurized gas received from said valve means.
Claim 9
Dependent Claim 135 words
The system of claim 1, wherein said means for firmly securing said person in a predetermined restrained postural position within an envelope-like confinement means located within said vehicle in response to a predetermined actuation signal comprises: a seat in which said person sits during the piloting of said vehicle; harness-like means effectively connected to said seat and disposed about the body of said person as he sits therein; a pressurized gas supply means; motor means connected to said harness-like means for the drawing thereof about said person in such manner that he is firmly restrained within said seat; and valve means connected between the output of said pressurized gas supply means and the inputs of said motor means for supplying pressurized gas thereto for the energization thereof in response to the aforesaid predetermined actuation signal.
Claim 10
Dependent Claim 30 words
The invention of claim 8, further characterized by a condition responsive actuator means connected to said valve means for the opening thereof in response to a predetermined parameter sensed thereby.
Claim 11
Independent Claim 168 words
A system for preventing the fracture of spinal column vertebrae of a person during the emergency ejection thereof from an otherwise dangerously situated vehicle, comprising in comBination: means for firmly securing said person in a predetermined restrained postural position within an envelope-like confinement means located within said vehicle in response to a predetermined ejection signal; means disposed against the thoraco-lumbar region of the spinal column of said person for timely effecting a predetermined posterior arcuate curvature thereof in programmed response to the aforesaid predetermined ejection signal and immediately after said person is firmly secured within said predetermined envelope-like confinement means, said means including a resilient bag capable of being inflated and expanded by a pressurized gas, and means connected to said resilient bag for timely supplying said gas thereto in response to said predetermined ejection signal; and means effectively connected to said predetermined envelope-like confinement means for effecting the ejection thereof and the person firmly secured therein from said vehicle in timely response to said predetermined ejection signal.
Claim 12
Independent Claim 168 words
A system for preventing the fracture of spinal column vertebrae of a person during the emergency ejection thereof from an otherwise dangerously situated vehicle, comprising in comBination: means for firmly securing said person in a predetermined restrained postural position within an envelope-like confinement means located within said vehicle in response to a predetermined ejection signal; means disposed against the thoraco-lumbar region of the spinal column of said person for timely effecting a predetermined posterior arcuate curvature thereof in programmed response to the aforesaid predetermined ejection signal and immediately after said person is firmly secured within said predetermined envelope-like confinement means, said means including a resilient bag capable of being inflated and expanded by a pressurized gas, and means connected to said resilient bag for timely supplying said gas thereto in response to said predetermined ejection signal; and means effectively connected to said predetermined envelope-like confinement means for effecting the ejection thereof and the person firmly secured therein from said vehicle in timely response to said predetermined ejection signal.
Claim 13
Dependent Claim 11 words
The system of claim 10, wherein said vehicle comprises an aircraft.
Claim 14
Dependent Claim 12 words
The system of claim 10, wherein said vehicle comprises a space craft.
Claim 15
Dependent Claim 12 words
The system of claim 10, wherein said vehicle comprise a marine vehicle.
Claim 16
Dependent Claim 12 words
The system of claim 10, wherein said vehicle comprises a land vehicle.
Claim 17
Independent Claim 442 words
A system for preventing wedge fracture of the anterior edges of adjacent vertebrae of the spinal column of a pilot during the emergency ejection thereof from a movable craft, comprising in combination: a pressurized gas supply; a normally closed master valve, adapter for being opened by a predetermined signal, connected to the output of said pressurized gas supply; a first gas powered motor having a gas input, a mechanical power movement output, and a control output, with the gas input thereof connected to the output of said normally closed master valve; a first normally closed delay valve having a gas input, a control input for effecting the opening thereof, and a gas output, with the gas input thereof connected to the gas output of said master valve, and with the control input thereof connected to the control output of the aforesaid first gas powered motor; a seat having a bearing-mounted movable bottom pan, an automatically actuated back in the fully retracted position which may be unlocked for normal use, and a rigid back; a pilot sitting within said seat in such manner as to be in contact with said bottom pan and rigid back; a torso restraint shoulder strap connected to the output of said first gas powered motor, effectively connected to said seat, and disposed around said pilot; a second gas powered motor having a gas input and a mechanical power movement output, with the gas input thereof connected to the output of said master valve; a pelvic restraining seatbelt connected to the mechanical power movement output of said second gas powered motor, effectively connected to said seat, and disposed around the pelvic region of said pilot; a third gas powered motor having a gas input and a mechanical power movement output, with the gas input thereof connected to the gas output of the aforesaid master valve; a head restraining means connected to the mechanical power output of said third motor, effectively connected to said seat, and mounted on the head of said pilot; a second normally closed delay valve, having a gas input and a gas output, the opening of which is automatic but delayed for such preset period of time that it remains closed until after the aforesaid first normally closed delay valve is opened; a seat ejector motor connected between the gas output of said second normally closed delay valve and the aforesaid seat; and an inflatable resilient bag, having a gas input connected to the gas output of the aforesaid first normally closed delay valve, disposed between the thoraco-lumbar region of the back of said pilot and the front of the rigid back of the aforesaid seat.
Claim 18
Independent Claim 442 words
A system for preventing wedge fracture of the anterior edges of adjacent vertebrae of the spinal column of a pilot during the emergency ejection thereof from a movable craft, comprising in combination: a pressurized gas supply; a normally closed master valve, adapter for being opened by a predetermined signal, connected to the output of said pressurized gas supply; a first gas powered motor having a gas input, a mechanical power movement output, and a control output, with the gas input thereof connected to the output of said normally closed master valve; a first normally closed delay valve having a gas input, a control input for effecting the opening thereof, and a gas output, with the gas input thereof connected to the gas output of said master valve, and with the control input thereof connected to the control output of the aforesaid first gas powered motor; a seat having a bearing-mounted movable bottom pan, an automatically actuated back in the fully retracted position which may be unlocked for normal use, and a rigid back; a pilot sitting within said seat in such manner as to be in contact with said bottom pan and rigid back; a torso restraint shoulder strap connected to the output of said first gas powered motor, effectively connected to said seat, and disposed around said pilot; a second gas powered motor having a gas input and a mechanical power movement output, with the gas input thereof connected to the output of said master valve; a pelvic restraining seatbelt connected to the mechanical power movement output of said second gas powered motor, effectively connected to said seat, and disposed around the pelvic region of said pilot; a third gas powered motor having a gas input and a mechanical power movement output, with the gas input thereof connected to the gas output of the aforesaid master valve; a head restraining means connected to the mechanical power output of said third motor, effectively connected to said seat, and mounted on the head of said pilot; a second normally closed delay valve, having a gas input and a gas output, the opening of which is automatic but delayed for such preset period of time that it remains closed until after the aforesaid first normally closed delay valve is opened; a seat ejector motor connected between the gas output of said second normally closed delay valve and the aforesaid seat; and an inflatable resilient bag, having a gas input connected to the gas output of the aforesaid first normally closed delay valve, disposed between the thoraco-lumbar region of the back of said pilot and the front of the rigid back of the aforesaid seat.
Claim 19
Dependent Claim 13 words
The system of claim 15, wherein said movable craft comprises a jet aircraft.
Claim 20
Dependent Claim 13 words
The system of claim 15, wherein said movable craft comprises a space craft.
Claim 21
Dependent Claim 13 words
The system of claim 15, wherein said movable craft comprises a submarine vehicle.
Claim 22
Dependent Claim 13 words
The system of claim 15, wherein said movable craft is a land craft.
Claim 23
Independent Claim 173 words
A method of preventing the fracture of spinal column vertebrae of a person sitting in and leaning against the back of a seat disposed within a vehicle during the emergency ejection thereof from said vehicle, comprising the steps of: firmly restraining said person in a safe postural position within and against the back of the seat disposed within said vehicle in response to a predetermined ejection signal; forcefully bending the spinal column of said person in such manner that it has a backward arcuate curvature at the thoraco-lumbar region thereof while said person is being firmly restrained in a safe postural position within said seat and against the back thereof, said step being implemented by inflating a resilient bag in such manner against the back of said person that the spinal column thereof assumes the aforesaid backward arcuate curvature; and timely ejecting said seat and the person restrained therein from said vehicle while the spinal column of said person is being forcefully bent to have a backward curvature at the thoraco-lumbar region thereof.
Claim 24
Independent Claim 173 words
A method of preventing the fracture of spinal column vertebrae of a person sitting in and leaning against the back of a seat disposed within a vehicle during the emergency ejection thereof from said vehicle, comprising the steps of: firmly restraining said person in a safe postural position within and against the back of the seat disposed within said vehicle in response to a predetermined ejection signal; forcefully bending the spinal column of said person in such manner that it has a backward arcuate curvature at the thoraco-lumbar region thereof while said person is being firmly restrained in a safe postural position within said seat and against the back thereof, said step being implemented by inflating a resilient bag in such manner against the back of said person that the spinal column thereof assumes the aforesaid backward arcuate curvature; and timely ejecting said seat and the person restrained therein from said vehicle while the spinal column of said person is being forcefully bent to have a backward curvature at the thoraco-lumbar region thereof.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-17 1976-04-17 1976-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-17 1980-04-17 1980-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-17 1984-04-17 1984-10-17 $7700.00 Window Closed / Lapsed

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