Physical rehabilitation writing stylus

Patent metadata

Field	Value
Publication number	US-2026037078-A1
Application number	US-202519352532-A
Country	US
Kind code	A1
Filing date	Oct 8, 2025
Priority date	Mar 7, 2024
Publication date	Feb 5, 2026
Grant date	—

Abstract

A smart stylus for use in hand therapy includes an elongate body having a stylus end, a central body, a C-shaped handle, and a handle end cap. The stylus end is connected to a first end of the central body and a second end of the central body is connected to a first end of the C-shaped handle. The central body is configured to taper in width and depth from the second end of the central body to the first end of the central body and the handle end cap is connected to a second end of the C-shaped handle. The length of the central body may be adjusted by sliding mechanisms. A pressure sensor measures the amount of force of the stylus tip on a therapeutic tablet. The therapeutic tablet presents therapy exercises and communicates therapy results to a physical therapist of the patient.

First claim

1 . A physical rehabilitation writing stylus, comprising:
an elongate body having a stylus end, a central body, a C-shaped handle, and a handle end cap, wherein the stylus end is connected to a first end of the central body, a second end of the central body is connected to a first end of the C-shaped handle, wherein the central body is configured to taper in width and depth from the second end of the central body to the first end of the central body, wherein the handle end cap is connected to a second end of the C-shaped handle; a first sliding mechanism located between the central body and the first end of the C-shaped handle; and a second sliding mechanism located between the second end of the C-shaped handle and the handle end cap, wherein a length of the elongate body depends on an adjustment of the first sliding mechanism and the second sliding mechanism; and a stopping mechanism in the second end of the central body configured to prevent detachment of the central body.

2 . The physical rehabilitation writing stylus of claim 1 , wherein an outer region of the C-shaped handle includes a first groove which extends from the first end of the C-shaped handle to the second end of the C-shaped handle, wherein the first groove has a width in a range of 80% to 90% of a width of the C-shaped handle and a depth in a range of 0.25 to 1.0 cm.

3 . The physical rehabilitation writing stylus of claim 2 , wherein an outer region of the central body from the second end of the central body to about halfway between the first end of the central body and the second end of the central body includes a second groove which matches the first groove of the C-shaped handle in depth and width.

4 . The physical rehabilitation writing stylus of claim 1 , further comprising:
a first flexible grip located on the central body halfway between the first end of the central body and the second end of the central body, wherein the first flexible grip includes raised lines extending across the central body perpendicular to a central axis of the central body; and a second flexible grip located on the handle end cap, wherein the second flexible grip includes raised lines extending across the handle end cap perpendicular to a central axis of the handle end cap.

5 . The physical rehabilitation writing stylus of claim 1 , further comprising:
at least two upper weight receiving compartments, wherein each upper weight receiving compartment is located on either side of the C-shaped handle near the first end; at least two lower weight receiving compartments, wherein each lower weight receiving compartment is located on either side of the C-shaped handle near the second end; and a plurality of weights, wherein each weight is sized to fit within a respective weight receiving compartment.

6 . The physical rehabilitation writing stylus of claim 5 , wherein the plurality of weights includes an oblong weight and a cylindrical weight, wherein each side of the C-shaped handle includes a weight receiving compartment sized to receive the oblong weight and a weight receiving compartment sized to receive the cylindrical weight.

7 . The physical rehabilitation writing stylus of claim 1 , wherein the elongate body and the C-shaped handle are made of elastomeric thermoplastic.

8 . The physical rehabilitation writing stylus of claim 1 , further comprising:
a rechargeable battery located within the handle end cap.

9 . The physical rehabilitation writing stylus of claim 8 , further comprising:
a pressure sensor located within the elongate body and connected to the stylus end.

10 . The physical rehabilitation writing stylus of claim 9 , further comprising:
a microcontroller located within the central body, wherein the microcontroller is operatively connected to the rechargeable battery and the pressure sensor; and a near field communications unit located within the central body and operatively connected with the microcontroller.

11 - 20 . (canceled)

Assignees

• Univ Imam Abdulrahman Bin Faisal

Inventors

• Al-Hawas Razan Osama
• El-Wakeel Hala
• Kattan Noran
• Alshehri Lama
• Alamri Lojain

Classifications

• G16H40/67

  for remote operation · CPC title

• G16H20/30

  relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising · CPC title

• G06F3/0442

  using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser · CPC title

• G06F3/0441 Primary

  using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals · CPC title

• G06F3/04162

  for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware · CPC title