# US 9,750,631 B2 · Dynamic hallux tension device for treatment of plantar fasciitis

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- Number: US 9,750,631 B2
- Document ID: US9750631B2
- Status: Granted
- Kind: B2
- Application number: 15/098,696
- Filed: 2016-04-14
- Published: 2016-10-20
- Granted: 2017-09-05
- Earliest claimed: 2013-01-19
- Assignees: Arthrology Designs, LLC
- Applicants: Arthrology Designs, LLC
- Inventors: Derek Amanatullah
- Web page: https://patentgrep.com/patent/US9750631B2

## CPC

- A61F 5/019: {Toe correcting or spreading devices}
- A61F 5/0111: {for the feet or ankles}
- A61F 5/042: for extension or stretching
- A61F 5/0585: {for the legs (toe correcting devices A61F5/019)}
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A physical rehabilitation device for the treatment of a medical condition of the foot known as plantar fasciitis includes a splint which is connected to the toe and ankle of a patient. The splint can be used in a method for treating plantar fasciitis known as “dynamic splinting”. This device allows the patient to bend the ankle and thus dynamically change the flexion in the foot of the patient. The device itself is unique, but the method of treatment made possible by this device is also unique.

## Claims

### Claim 1

A foot splint for treating plantar fasciitis, comprising: a first sling portion configured to fit over a hallux but not the metatarsophalangeal joint in a natural human foot; and
a second sling portion attached to a dorsal side of the first sling portion, the second sling portion defining two straps of flexible material configured to releasably wrap around an ankle of the natural human foot to secure the hallux in a dorsiflexed position and thereby tension a plantar fascia of the natural human foot by pulling on said dorsal side of the first sling portion, said two straps extending from said dorsal side of the first sling portion, and configured to extend over a top of the foot and around the ankle, the two straps of flexible material releasably fastenable to each other around the ankle, the first sling portion and second sling portion defining a helix,
wherein the foot splint is configured for daily wear within a shoe during ambulation and allows a user to dynamically control an amount of tension applied to the plantar fascia by allowing the user to dorsiflex and plantarflex the ankle while wearing the splint.

### Claim 2 (depends on 1)

The foot splint of claim 1, wherein the first sling portion is configured to fit over the hallux and the second toe of the natural human foot.

### Claim 3 (depends on 1)

The foot splint of claim 1, wherein the first and second sling portions each comprise a band of elastic material.

### Claim 4 (depends on 1)

The foot splint of claim 1, wherein the two straps of the second sling portion are coupleable to each other via a hoop and loop fastener.

### Claim 5 (depends on 1)

The foot splint of claim 1, further comprising a sock attached to the first and second sling portions along a length of the first and second sling portions and configured to fit over the foot.

### Claim 6 (depends on 5)

The foot splint of claim 5, wherein the first and second sling portions are disposed over the sock.

### Claim 7 (depends on 6)

The foot splint of claim 6, wherein the first and second sling portions, when fitted over the hallux and ankle of the natural human foot, do not secure the hallux in a fixed position or the ankle at a 90 degree angle, thereby allowing for dynamic splinting of the plantar fascia of the foot.

### Claim 8

A foot splint for treating plantar fasciitis, comprising:
a first sling portion comprising a loop configured to fit over a hallux distal of the metatarsophalangeal joint in a natural human foot; and
a second sling portion attached to the first sling portion, the second sling portion comprising two bands configured to releasably wrap around an ankle of the natural human foot to secure the hallux in a dorsiflexed position and thereby tension a plantar fascia of the natural human foot by pulling on a dorsal side of the first sling portion, the two bands configured to releasable attach to each other via an attachment member, the first and second sling portions together defining a helix shape,
wherein the foot splint allows a user to dorsiflex and plantarflex the ankle while wearing the splint, thereby allowing the user to dynamically control an amount of tension applied to the plantar fascia during use.

### Claim 9 (depends on 8)

The foot splint of claim 8, wherein the first sling portion is configured to fit over the hallux and the second toe of the natural human foot.

### Claim 10 (depends on 8)

The foot splint of claim 8, wherein the first sling portion comprises a band of elastic material.

### Claim 11 (depends on 8)

The foot splint of claim 8, wherein the two bands of the second sling portion comprise elastic material.

### Claim 12 (depends on 8)

The foot splint of claim 8, wherein the attachment member comprises a hoop and loop fastener.

### Claim 13 (depends on 8)

The foot splint of claim 8, further comprising a sock attached to the first and second sling portions along their lengths and configured to fit over the foot.

### Claim 14 (depends on 8)

The foot splint of claim 8, wherein the second sling portion is attached to the dorsal side of the first sling portion, and wherein said two bands are configured to extend from said dorsal side of the first sling portion, over a top of the foot and around the ankle, such that the two bands solely fasten the splint to the ankle.