Continuous passive motion device
First Claim
1. A continuous passive motion device for articulating the knee of a patient'"'"'s leg, comprising:
- a drive tube having a mounting means reciprocally mounted along said drive tube wherein said mounting means includes opposing leg members on opposite sides of said drive tube;
a thigh support bar pivotally connected to one end of said drive tube;
a calf support bar having one end pivotally connected to said thigh support bar, and having another end connected to said mounting means;
drive means coupled to said drive tube for reciprocally driving said mounting means along said tube to cylically raise and lower said thigh and calf support bars; and
a support saddle connected to each said support bar, each said support saddle including a rigid frame and a soft central portion removably attached to said rigid frame, in which said soft central portion of each saddle lifts up the thigh and calf of the patient'"'"'s leg, respectively, when said thigh and calf support bars are being raised by said drive means, and in which said rigid frame pushes down on the top of said thigh and calf when said thigh and calf support bars are lowered by said drive means.
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Accused Products
Abstract
A CPM device is disclosed having a single drive tube supporting the calf and thigh support members. Arms extend upwardly from the calf and thigh support members, each supporting an adjustable cradle in which the calf or thigh rests. The support arms are rotatable 180 degrees so that either leg may be supported over the single drive tube. A foot support is also cantilevered from the end of the calf support drive bar. The drive tube which supports the calf and thigh drive support bars is cantilevered from a unique support mechanism which attaches an end of the drive tube to the horizontal bed frame at the end of the hospital bed. A rack and pinion mechanism is combined with a unique gas spring in order to allow the drive tube to be easily rotated up above the hospital bed with the gas spring providing a power assist to the person lifting the drive tube off the bed in order that the drive tube may be easily rotated up off the bed without undue physical exertion.
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Citations
20 Claims
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1. A continuous passive motion device for articulating the knee of a patient'"'"'s leg, comprising:
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a drive tube having a mounting means reciprocally mounted along said drive tube wherein said mounting means includes opposing leg members on opposite sides of said drive tube; a thigh support bar pivotally connected to one end of said drive tube; a calf support bar having one end pivotally connected to said thigh support bar, and having another end connected to said mounting means; drive means coupled to said drive tube for reciprocally driving said mounting means along said tube to cylically raise and lower said thigh and calf support bars; and a support saddle connected to each said support bar, each said support saddle including a rigid frame and a soft central portion removably attached to said rigid frame, in which said soft central portion of each saddle lifts up the thigh and calf of the patient'"'"'s leg, respectively, when said thigh and calf support bars are being raised by said drive means, and in which said rigid frame pushes down on the top of said thigh and calf when said thigh and calf support bars are lowered by said drive means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A continuous passive motion device for articulating the knee of a patient'"'"'s leg, comprising:
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a single drive tube having a mounting means reciprocally mounted along said drive tube; a thigh support bar pivotally connected to said drive tube wherein said mounting means includes opposing leg members on opposite sides of said drive tube; a calf support bar having one end pivotally connected to said thigh support bar, and having another end connected to said mounting means; drive means coupled to said drive tube for reciprocally driving said mounting means along said tube to cyclically raise and lower said thigh and calf support bars; a support saddle suspended from each said support bar, for supporting the thigh and calf, respectively, of said patient'"'"'s leg; and means for pivotally connecting one end of said drive tube to a stationary frame member of a bed, said drive tube being movable between an upright position wherein said drive tube is elevated to an inclined position off of said bed, and a down position wherein said drive tube is lowered to a substantially horizontal position onto said bed. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A continuous passive motion device for articulating the knee of a patient, comprising:
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a single drive tube; a thigh support bar hingedly connected to said drive tube to establish a hip pivot; a calf support bar hingedly connected to said thigh support bar to establish a knee pivot; a mounting means connected to said calf support bar and reciprocally movable along said drive tube between a first position wherein said thigh support and calf support bar are in substantially linear alignment, and a second position wherein said thigh support bar and calf support bar form an angle;
wherein said mounting means includes opposing leg members on opposite sides of said drive tubes; anda support saddle connected to each said support bar, each said support saddle including a soft central portion for supporting the thigh and calf, respectively, of the patient'"'"'s leg, and including a rigid frame portion for pushing down on the top of said thigh and calf to extend said patient'"'"'s leg when said thigh support bar and calf support bar are in said aligned substantially linear alignment. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification