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Publication numberUS2889160 A
Publication typeGrant
Publication dateJun 2, 1959
Filing dateOct 23, 1957
Priority dateOct 23, 1957
Publication numberUS 2889160 A, US 2889160A, US-A-2889160, US2889160 A, US2889160A
InventorsNelson Kurt B
Original AssigneeNelson Kurt B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Clutch and connector for orthopedic appliance
US 2889160 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 2, 1959 S N 2,889,160

CLUTCH AND CONNECTOR FOR ORTHOPEDIC APPLIANCE Filed Oct 23. 1957 'fllEe l M/VE/VFOR KURT B. NELSON AI arney States Patent Ofiice "2,889,160 Patented June 2, 1959 CLUTCH AND CONNECTOR FOR ORTHOPEDIC APPLIANCE Kurt B. Nelson, Monroeville, Pa.

Application October 23, 1957, Serial No. 691,905

6 Claims. (Cl. 287-14) This invention relates to a device which enables persons with paralyzed fingers to manipulate toilet articles, eating implements, etc.

Certain types of paralysis leave the victim with helpless fingers yet with full use of the arms. It is accordingly the object of the invention to provide an attachment which can be wielded by arm motion and is adapted to receive and hold implements or tools of various kinds needed in personal care, eating and the like.

In a preferred embodiment, the invention comprises a drum-shaped body or cup adapted to be secured to an arm brace, having a knob retractably and rotatably carried thereon, actuable by pressure against the users thigh or other part of the body, and a head rotatable with the knob, adapted to receive and engage the handles of toilet articles or implements A locking disc is carried by the rotatable head but is displaceable by the knob, and normally engages a pin fixed in the body.

A complete understanding of the invention may be obtained from the following detailed description and explanation which refer to the accompanying drawing illustrating the preferred embodiment.

In the drawings,

Fig. l is a view of the palm of a hand having the invention in position thereon;

Fig. 2 is a plan view with a portion in section along the plane of line iii-H of Fig. 3;

Fig. 3 is an elevation with a portion in section along the plane of line IIIIII of Fig. 2;

Fig. 4 is a section taken along the plane of line IV-IV of Fig. 3;

Fig. 5 is a full axial section showing the knob depressed for rotation of the head; and

Fig. 6 is a perspective of a handle to be inserted in the head.

Referring now in detail to the drawings, the device of my invention, indicated generally at 10, is preferably secured to a hand-encircling strap 11 mounted on a brace (not shown) adapted to be worn on the patients forearm. The device comprises a body 12 of drum or cup shape, having a closure or head 13 rotatable thereon. The head has a circumferential groove 14 therein and radial screws 15 threaded through tapped holes in the body have their inner ends turned down to fit loosely in the groove, so as to permit rotation of the head.

A toothed locking disc 16 is pressed by a spring 17 against the bottom of head 13. In the position shown in Fig. 3, the disc cooperates with a fixed radial pin 18 which prevents rotation thereof. A pair of pins 19 on disc 16 are slidable through holes in head 13 and support a knob 20 in a position spaced thereabove. The head has a transverse slot 21 therethrough adapted to receive the handle 22 of a toilet article of other implement. This handle is special in that it has a beveled end 23 and a hole 24. The hole is positioned and dimensioned to receive a locking pin 25 upstanding centrally on disc 16 and slidably extending through a central hole in head 13 into slot 21.

When knob 20 is depressed as shown in Fig. 5, disc 16 is clear of pin 18 and head 13 may be freely rotated on body 12. At the same time, pin 25 is withdrawn from hole 24, permitting handle 22 to be removed if desired. Thus, to change the angle at which handle 22 extends, or to remove it altogether, it is only necessary for the user to press the knob against his thigh or some other part of the body, using arm motion, in order to be able to change the adjustment of the handle or replace it. When inserting the handle in the head 13, the beveled end thereof engages the rounded end of pin 25 so as to displace it sufficiently to enable the handle to be fully inserted, whereupon spn'ng 17 restores both the disc 16 and pin 25 to normal locking position as shown in Fig. 3.

It will be apparent from the foregoing that the invention permits one whose fingers are paralyzed to operate simple tools and implements by arm motion after first inserting the tool handle and adjusting it to the proper angle in the rotatable head. When once adjusted, the handle is held rigidly until the knob is again depressed for removal or a change of angle. Disc 16 and pin 18 constitute a clutch and pin 25 serves to make a releasable connection, both being actuated by spring 17.

Although I have disclosed herein but a preferred embodiment it will be understood that the invention may be modified as to details of construction without departing from the scope of the appended claims.

I claim:

1. A clutch and connector for an orthopedic appliance comprising a hollow body, a head rotatable thereon, said head having a recess for an implement handle, a locking disc movable axially and rotatable in said body, means constantly urging said disc toward said head, handle-engaging means on said disc entering said head, a knob for operating said disc and means on the disc extending slidably through said Ihead mounting said knob, said means being eccentric to said head thereby preventing relative angular movement between said head and disc.

2. A device as defined by claim 1 characterized by said recess being a transverse slot.

3. A device as defined by claim 1 characterized by said lbangle-engaging means being a stud having a rounded 4. A device as defined by claim 1 characterized by said disc having teeth formed in its periphery and said body having a radial projection adapted to cooperate with said tee 5. A device as defined by claim 1 characterized by said last-mentioned means being a pair of pins fixed to said disc and knob.

6. A device as defined by claim 1 characterized by said head having a circumferential goove therein and said body having inward projections extending loosely into said groove.

References Cited in the file of this patent UNITED STATES PATENTS 1,899,656 Wigley et al. Feb. 28, 1933 2,646,037 Cook et a1 July 21, 1953 2,822,551 Alderson Feb. 11, 1958

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1899656 *Sep 11, 1930Feb 28, 1933Irving Air Chute Co IncParachute harness
US2646037 *Jun 23, 1950Jul 21, 1953Welch Allyn IncLocking means for folding laryngoscopes
US2822551 *Dec 28, 1955Feb 11, 1958Alderson Samuel WElbow lock
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3358527 *Sep 7, 1965Dec 19, 1967Louise Entpr IncWrist attachment and manual control for motor vehicles
US3942194 *Aug 30, 1974Mar 9, 1976Sybil Betty Anna WinterProsthetic device for handicapped persons
US4165896 *Dec 2, 1977Aug 28, 1979Hunt Alvin WInstrument holder for use on disabled hands
US4339844 *Jun 30, 1978Jul 20, 1982Caterpillar Tractor Co.Assembly for holding open a door or the like
US4606484 *Oct 18, 1985Aug 19, 1986Sybil B. A. WinterTool holding appliance for persons with limited use of hands
US4615690 *Dec 5, 1984Oct 7, 1986Flottweg-Werk Bmco. GmbhCentrifuge
US4944766 *Jul 20, 1989Jul 31, 1990Williams Brian RGripping device
US5106117 *Sep 12, 1990Apr 21, 1992Wang Lee MFolding golf cart
US5694818 *Aug 29, 1996Dec 9, 1997Nickipuck; Michael F.Locking joint for a ratchet wrench
US5779292 *Jan 2, 1997Jul 14, 1998Lucent Technologies Inc.Manipulation aid for attachment to human body parts
US5853210 *May 2, 1996Dec 29, 1998Robinson; GalePen and instrument holder for physically impaired hands
US6053076 *Feb 16, 1999Apr 25, 2000Barnes; Benny R.Offset head ratchet wrench
US6394516 *Dec 13, 2000May 28, 2002Alexander ZhuravskyUtensil holding device
US20120291256 *May 16, 2011Nov 22, 2012David Chen YuMethod and apparatus for dorsally carrying a device
U.S. Classification403/93, 294/25, 623/65, 74/527, 74/557, 188/69, 74/528
International ClassificationA61F2/58, A61F2/50
Cooperative ClassificationA61F2/583
European ClassificationA61F2/58H