Joint range of motion measurement device and mobility enhancer

• US 7,942,785 B1
• Filed: 08/05/2008
• Issued: 05/17/2011
• Est. Priority Date: 08/06/2007
• Status: Expired due to Fees

• Current Assignee: Lori E. Russell
• Original Assignee: Lori E. Russell
• Inventors: Russell, Lori E.
• Primary Examiner(s): Donnelly; Jerome W
• Application Number:
  US12/221,587
• Time in Patent Office: 1,015 Days
• Field of Search: 482/49, 482/44, 482/45, 482/148, 283/81, 283/101, 283/104, 220/503, 220/506, 220/428, 220/283, 600/587
• US Class Current: 482/44
• CPC Class Codes: A61B 5/1121 Determining geometric values, e.g. centre of rotation or angular range of movement
• CPC Class Codes: A61H 1/0285 Hand
• CPC Class Codes: A61H 2201/1276 by the other leg or arm
• CPC Class Codes: A61H 2201/5069 Angle sensors
• CPC Class Codes: A63B 2071/0602 Non-electronic means therefor
• CPC Class Codes: A63B 21/0004 Exercising devices moving as a whole during exercise bar bells or dumb bells A63B21/072; on wheels A63B22/20
• CPC Class Codes: A63B 21/0602 Fluids, e.g. water
• CPC Class Codes: A63B 21/072 Dumb-bells, bar-bells or the like , e.g. weight discs having an integral peripheral handle
• CPC Class Codes: A63B 2220/20 Distances or displacements
• CPC Class Codes: A63B 2220/50 Force related parameters
• CPC Class Codes: A63B 23/16 for hands or fingers for teaching typing G09B13/00
• CPC Class Codes: A63B 71/0009 for handicapped persons

Abstract

One embodiment of a multi-functional device for measuring joint range of motion of the wrist and forearm. In general, the embodiment includes a casing (20) containing fluid (23), and a plural number of calibration scale (24) assemblies. The casing (20) is sized appropriately to be gripped in a user'"'"'s hand, and enables the user to obtain an assessment of his or her range of motion as various motions are performed. Specifically, the various motions made by the user while gripping the embodiment causes fluid (23) to shift inside of casing (20) as a reaction to the downward pull of gravity. The user obtains an instant visual measurement of joint range of motion by viewing the location of fluid (23) on the calibration scale (24) assemblies. The overall design empowers the user to measure his or her own range of motion, which engages him or her as he or she works to re-gain mobility, and provides a positive motivating influence. The device is also suitable for use when performing exercises and stretches. The device is intuitive, portable, and requires no medical training to use. Other embodiments are described and shown.

Claims

1. A method of measuring joint range of motion, comprising:

a) providing a casing of substantially cylindrical shape, of sufficient size to accommodate the grip of a human hand, and with walls fabricated of a water-tight and substantially transparent material, and having a top and a bottom,

b) providing a fluid inside of said casing,

c) providing a plurality of calibration means for providing predefined graduated incremental scale of values when mounted along the length of and around the circumference of said casing,

d) selecting a human arm as the subject for the measurement activities,

e) bending a elbow of said human arm to 90 degrees and holding said elbow next to the human'"'"'s body,

f) gripping said casing in a pre-determined location with said human hand of said human arm,

g) performing various bending and rotation movements with said human hand gripping said casing, which causes said fluid to simultaneously shift locations within said casing due to the downward pull of gravity,

h) viewing the point of intersection of said fluid on said calibration means at the point where no additional movement of said human hand is possible,

whereby a measurement of joint range of motion is obtained.

2. A method of assessing joint range of motion according to claim 1, further comprising:

a) gripping said casing with said top pointing up and with the palm side of said human hand facing the inside of the human'"'"'s body,

b) rotating said human hand of said human arm into the palm up position,

c) viewing the point of intersection of said fluid on said calibration means at the point where no additional movement of said human hand is possible,

whereby a measurement of supination is obtained.

3. A method of assessing joint range of motion according to claim 1, further comprising

a) gripping said casing with said top pointed towards the inside of the human body and with the palm side of said human hand facing the floor,

b) bending the wrist of said human arm downwards such that the fingers of said human hand curl to a position closer to the human'"'"'s lower body,

c) viewing the point of intersection of said fluid on said calibration means at the point where no additional movement of said human hand is possible,

whereby a measurement of flexion in the palm down position is obtained.

4. A method of assessing joint range of motion according to claim 1, further comprising:

a) gripping said casing with said top pointed towards the inside of the human body and with the palm side of said human hand facing the floor,

b) bending the wrist of said human arm upwards such that the fingers of said human hand curl to a position closer to the human'"'"'s upper body,

c) viewing the point of intersection of said fluid on said calibration means at the point where no additional movement of said human hand is possible,

whereby a measurement of extension is obtained.

5. A method of assessing joint range of motion according to claim 1, further comprising:

a) straightening the elbow of the selected arm and holding the arm down next to the lower body such that the palm side of the hand is facing the body,

b) gripping said casing with said casing'"'"'s top pointing forwards,

c) bending the wrist of said human arm forwards (fingers towards radius bone) and backwards (fingers toward ulnar bone),

d) viewing the point of intersection of said fluid on said calibration means at the point where no additional movement of said human hand is possible,

whereby a measurement of radial deviation and ulnar deviation is obtained.

6. A method of assessing joint range of motion according to claim 1, further comprising:

a) performing pre-determined exercise movements, including bending and rotation actions, for a defined number of repetitions, with said human hand gripping said casing,

whereby exercise is achieved by repeating the exercise movements until the exercise is complete.

7. A method of assessing joint range of motion according to claim 1, further comprising:

a) performing pre-determined stretching movements, including bending and rotation motions, for a defined number of repetitions and duration, with said human hand gripping said casing, and with a second human hand assisting to deepen the stretch,

whereby stretching is achieved by increasing the joint range of motion.