Limb supporting device for arthroscopic surgery

Surgery – Truss – Perineal

Patent

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Details

128 77, A61H 102, A61F 510

Patent

active

050277995

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
This invention relates to a limb holding device designed to immobilize a hip during arthroscopic surgery, and it is also adaptable to most types of leg surgery, as well as for surgery on the arm or shoulder. To function properly in the surgical environment, a limb supporting device must provide firm immobilization of the upper or lower extremity involved in the surgery, allow for the extremity to be moved in any direction and then be firmly fixed in place, and allow the joint involved to be distracted to allow insertion of surgical instruments or the like.
2. Description of the Prior Art
Prior art devices have been cumbersome to use and ineffective in providing a universal range of movement of the limb being treated such that the surgeon may most efficiently and effectively treat the patient.
Examples of such prior art devices include U.S. Pat. No. 3,087,489 issued to H. Gilbert et al on Apr. 30, 1963, entitled "Universal Orthopedic Traction and Holding Device" and U.S. Pat. No. 3,840,166 issued to Tammy et al on Nov. 26, 1974, entitled "Fracture Reduction Device". Both of these patents show cumbersome devices which impede a surgeon's treatment of a limb by causing him to work around the hardware of the apparatus, wherein a portion of the limb being treated may be inaccessible without shifting the position of either the patient or the apparatus, or causing the surgeon to lean completely across the patient's body to treat the limb. Such inconveniencing of and acrobatics by the surgeon are precluded by the limb supporting device of the subject invention.


BRIEF SUMMARY OF THE INVENTION

The invention consists of two L-shaped or straight poles designed to be secured to one end of a standard operating table, with the horizontal or vertical portions of the poles attached to the table sides, and the upright portions extending vertically upward above the table top. The upright portions for the poles are interconnected by an adjustable connecting bar, to which is secured by a universally adjustable clamp a fork-like limb holding member. The two tines of the fork-like member are formed of two telescoping elements, the outer, female portions of the fork being interconnected by an outer base member which includes a post for a foot holder, and the inner, male portions of the fork being interconnected by an inner base member. The open ends of the tines of the fork are interconnected by a canvas or plastic material to comfortably cradle the patient's arm or leg, and attached along the length of the cradle material are a plurality of strap means for immobility and securing the limb. The handle end of the fork is a threaded shaft terminating in a T-handle. Located along the threaded portion of the handle are a threaded handle and associate stop nuts to allow positional and tensional adjustments of the fork member and its cradled limb. A tension measuring device is placed between the inner and outer base members of the fork to indicate directly the tension being applied to the patient's limb. To provide further adaptability of the device, a foot attachment device may be attached to the foot holder post attached to the outer base of the limb holding fork. The foot plate or shoe includes a plurality of straps and cuffs to allow firm attachment of the foot to the post to facilitate rotation, flexion, extension abduction or adduction of the lower extremity.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of the limb supporting device of the invention shown secured to a standard operating table (illustrated in phantom);
FIG. 2 is a perspective view of the foot plate which may be added to the limb supporting device to aid positioning of a leg;
FIG. 3 is a top plan view of the limb supporting fork member removed from its vertical and horizontal support structure for clarity, and including the tension measuring device; and
FIG. 4 is a perspective view of a second embodiment of the limb supporting device of the invention shown mounted to a standard operating

REFERENCES:
patent: 198723 (1877-12-01), Woods
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patent: 2020262 (1935-11-01), Longfellow
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patent: 4551872 (1985-11-01), Reed
patent: 4649907 (1987-03-01), Whitehead
patent: 4753228 (1988-06-01), Selner

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