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US3765411A Expired / Lapsed US ⏱️ 0.0 years remaining

Mobile traction apparatus

Assignee: Medical Controls Inc
•
Filing: 1972-01-03
•
Granted: 1973-10-16
•
Expires: 1992-01-03
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Abstract

Abstract A portable traction apparatus provides a patient with mobility in bed as well as freedom to use a wheelchair, or otherwise move about as by stretcher, while maintaining substantially constant tractive force on the fractured member. An articulated support is provided for cradling the leg above and below the knee with locking means provided for pre-setting the knee angle. Traction is applied to the fractured member by means of a traction bow and surgical pin connected to a pulley system incorporating a spring scale for adjusting tractive force thereon. Tractive force is applied in line with the fractured member. The support and the traction producing elements are pivotally supported in such a fashion as to balance the leg irrespective of shifting about by the patient whereby the fractured members will not be disturbed from a preset fixed position. When used in the bed, the pivotal support is mounted on a carriage which is free to move longitudinally to permit the patient to be raised and lowered from a prone to a sitting position without changing traction force. The device is detachably connected to the carriage to permit transfer to a wheelchair provided with a cooperating attachment whereby the patient may be wheeled about without changing traction force or leg support.

Inventors

  • 👤 G Ward

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 12:13
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 160 words
Apparatus for applying traction to a limb, comprising a. a first limb supporting member, b. a second limb supporting member articulated to said first member and slidably and lockably connected thereto, c. angle adjustment means connecting said first and second members for setting a preselected angle between said members, d. fulcrum means pivotally supporting said members, e. fulcrum position means connecting said fulcrum means to said members for selectively balancing said members, f. adjustable spring traction means engagable with a limb supported by said members, g. a height adjustable upright member mounted to one of said first and second members and supporting said traction means, h. said upright member being adjustably movable lengthwise along one of said first and second members, i. said traction means including pulley means connected to said one member, a limb engaging device, a cord connected to said pulley means and said device and tension adjustment means connected to said cord for adjusting the tension thereon.
Claim 2
Dependent Claim 160 words
Apparatus for applying traction to a limb, comprising a. a first limb supporting member, b. a second limb supporting member articulated to said first member and slidably and lockably connected thereto, c. angle adjustment means connecting said first and second members for setting a preselected angle between said members, d. fulcrum means pivotally supporting said members, e. fulcrum position means connecting said fulcrum means to said members for selectively balancing said members, f. adjustable spring traction means engagable with a limb supported by said members, g. a height adjustable upright member mounted to one of said first and second members and supporting said traction means, h. said upright member being adjustably movable lengthwise along one of said first and second members, i. said traction means including pulley means connected to said one member, a limb engaging device, a cord connected to said pulley means and said device and tension adjustment means connected to said cord for adjusting the tension thereon.
Claim 3
Dependent Claim 16 words
Apparatus according to claim 1 including slide means supporting said fulcrum means for limited movement thereof.
Claim 4
Dependent Claim 16 words
Apparatus according to claim 2 wherein said fulcrum means is detachably connected to said slide means.
Claim 5
Dependent Claim 23 words
Apparatus according to claim 1 in combination with a wheelchair including fulcrum mounting means mountable to said wheelchair for engaging said fulcrum means.
Claim 6
Dependent Claim 18 words
Apparatus according to claim 1 including tension measuring means connected to said cord for indicating the tension thereon.
Claim 7
Dependent Claim 24 words
Apparatus according to claim 1 including height adjustment means connected to said fulcrum means for selectively raising and lowering said first and second members.
Claim 8
Dependent Claim 33 words
Apparatus according to claim 1 wherein said upright member is angularly adjustable with respect to one of said first and second members through a plane perpendicular to the length of said one member.

References Cited (Backward Citations)

DE713701C Cited
US2374163A Cited
US2413053A Cited
US2511659A Cited
FR1068590A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-15 1977-04-16 1977-10-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-15 1981-04-16 1981-10-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-15 1985-04-16 1985-10-16 $7700.00 Window Closed / Lapsed

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