# US 2021/0274879 A1 · Footwear

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- Number: US 2021/0274879 A1
- Document ID: US20210274879A1
- Status: Published application
- Kind: A1
- Application number: 17/191,221
- Filed: 2021-03-03
- Published: 2021-09-09
- Earliest claimed: 2020-03-03
- Assignees: Actiweight Labs AS
- Applicants: Actiweight Labs AS
- Inventors: Gard Mikalsen Lohne; Marcus Christian Sletten
- Web page: https://patentgrep.com/patent/US20210274879A1

## CPC

- A43B 7/20: Ankle-joint supports or holders
- A43C 11/165: {characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation}
- A61F 5/0111: {for the feet or ankles}
- A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43C: FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
- 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

Footwear for rehabilitation after an ankle sprain or for preventive training to avoid an ankle sprain includes a sock body including a foot section and a leg section. The footwear further includes a leg strap device and an adjustable tensioning device connected to the leg strap device. A tensioning element is defined with a first end section, a second end section and an intermediate section between the first and second end sections, where the first end section is connected to the foot section, the second end section is connected to the adjustable tensioning device and the intermediate section is provided below, or integrated as part of, an arch section of the foot section. The adjustable tensioning device is connected to the leg strap device.

## Claims

### Claim 1

Footwear for rehabilitation after an ankle sprain or for preventive training to avoid an ankle sprain, wherein the footwear comprises:
a sock body comprising a foot section, a leg section, and an ankle section between the foot section and the leg section; the foot section comprising an arch section;
a leg strap device;
an adjustable tensioning device connected to the leg strap device;
a tensioning element having a first end section, a second end section and an intermediate section between the first and second end sections, where:
the first end section is connected to the foot section;
the second end section is connected to the adjustable tensioning device;
the intermediate section is provided below, or integrated as part of, the arch section.

### Claim 2 (depends on 1)

The footwear according to claim 1, wherein the adjustable tensioning device provides adjustable tensioning of the tensioning element with respect to the foot section of the sock body.

### Claim 3 (depends on 1)

The footwear according to claim 1, wherein the footwear is configured to provide an adjustable inversion force or an adjustable eversion force by adjustment of the adjustable tensioning device.

### Claim 4 (depends on 1)

The footwear according to claim 1, wherein the tensioning element is at least partially elastic.

### Claim 5 (depends on 1)

The footwear according to claim 1, wherein the adjustable tensioning device is connected on a medial side of the leg strap device, resulting in an adjustable inversion force by adjustment of the adjustable tensioning device.

### Claim 6 (depends on 1)

The footwear according to claim 1, wherein the adjustable tensioning device is connected on a lateral side of the leg strap device, resulting in an adjustable eversion force by adjustment of the adjustable tensioning device.

### Claim 7 (depends on 1)

The footwear according to claim 1, wherein the adjustable tensioning device comprises a wire connected to the second end section of the tensioning element.

### Claim 8 (depends on 1)

The footwear according to claim 1, wherein:
the second end section of the tensioning element is provided at, or adjacent to the ankle section of the sock body or at or adjacent the leg section of the sock body.

### Claim 9 (depends on 1)

The footwear according to claim 1, wherein the leg strap device is connected to the leg section of the sock body.

### Claim 10 (depends on 1)

The footwear according to claim 1, wherein the footwear comprises a zipper provided in the upper part of the leg section of the sock body.

### Claim 11 (depends on 1)

The footwear according to claim 1, wherein the first end section is connected to the foot section on the opposite side of the adjustable tensioning device.

### Claim 12 (depends on 1)

The footwear according to claim 1, wherein the footwear further comprises a guide connected to the ankle section of the sock body for positioning the tensioning element in relation to the sock body.