IP Library › Granted Patent US 12,245,957
Granted Patent B1
US 12,245,957 · App. 18/781,531 · Granted Mar 11, 2025

Prosthetic

Inventor: Arav Yash Bhargava (McLean, VA)
A61F2/78A61F2002/543
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Quick Facts
Patent No.
US 12,245,957
App. No.
18/781,531
Granted
Mar 11, 2025
Kind
B1
Abstract

A prosthetic for a limb that extends distally to a limb end includes a main body and plural struts. The main body has an opening for receiving the limb end. The main body defines a first zone of coverage of the limb. The struts are coupled to the main body and distributed along the circumference of the main body. Each strut has a main longitudinal extent that is essentially orthogonal to the circumference of the main body and that extends away from the main body to define a second zone of coverage of the limb that is adjacent to the first zone of coverage. Each strut includes a plurality of transverse through-openings configured to receive a lace. The transverse through-openings extend tangentially to the second zone of coverage.

Claims (28)

1. A prosthetic for a limb, the limb extending distally to a limb end, the prosthetic comprising:

a main body having an opening for receiving the limb end, and having a circumference, wherein the main body defines a first zone of coverage of the limb; and

a plurality of struts coupled to the main body and distributed along the circumference of the main body, wherein each strut has a main longitudinal extent that is essentially orthogonal to the circumference of the main body and that extends away from the main body to define a second zone of coverage of the limb that is adjacent to the first zone of coverage,

wherein each strut includes a plurality of transverse through-openings configured to receive a lace, the transverse through-openings extending around the second zone of coverage,

wherein the prosthetic further comprises a cuff including:

a cuff main body;

one or more tabs at one side of the cuff main body; and

one or more corresponding insertion points on an opposite side of the cuff main body, wherein the one or more tabs are configured to flex and to be inserted into the one or more corresponding insertion points to form a circumference around a limb portion.

2. The prosthetic of claim 1 , wherein a transverse width of each strut is wider at the through-openings than at locations between the through-openings.

3. The prosthetic of claim 1 , further comprising one or more laces threaded through the through-openings of the plurality of struts.

4. The prosthetic of claim 1 , further comprising a lacing closure system configured for tightening the one or more laces.

5. The prosthetic of claim 4 , wherein the lacing closure system is a dial lacing system.

6. The prosthetic of claim 1 , further comprising a cap having a concave portion configured to accommodate the limb end.

7. The prosthetic of claim 1 , wherein the plurality of struts include at least three struts.

8. The prosthetic of claim 1 , wherein the plurality of struts include five struts.

9. The prosthetic of claim 1 , wherein the plurality of struts are 3D-printed.

10. The prosthetic of claim 9 , wherein each strut has a fully flat side configured such that the strut is 3D-printed on a flat 3D printer bed.

11. The prosthetic of claim 1 , wherein the cuff is configured to connect to the plurality of struts.

12. The prosthetic of claim 1 , wherein the cuff main body is configured to directly connect to at least one of the plurality of struts.

13. The prosthetic of claim 1 , further comprising cuff attachment elements configured to directly connect to one of the one or more tabs and to at least one of the plurality of struts.

14. The prosthetic of claim 1 , wherein the cuff main body is lined with a silicone liner.

15. The prosthetic of claim 1 , further comprising a lace for tightening the cuff around a limb.

16. The prosthetic of claim 1 , wherein the cuff main body and the one or more tabs are 3D-printed.

17. The prosthetic of claim 16 , wherein the cuff main body and the one or more tabs each have a fully flat side configured such that the cuff main body and the one or more tabs are 3D-printed on a flat 3D printer bed.

18. A method of making the prosthetic of claim 1 , comprising:

3D-printing the plurality of struts.

19. A method of making the prosthetic of claim 1 , comprising:

3D-printing the cuff main body and the one or more tabs.

References Cited (31)
US 8414658B2 · Johnson et al. · 2013 [cited by applicant]
US 9283093B2 · Alley · 2016 [cited by applicant]
US 9468543B2 · Hurley et al. · 2016 [cited by applicant]
US 10172724B2 · Thomas · 2019 [cited by applicant]
US 11596219B2 · Alley · 2023 [cited by applicant]
US 11617667B2 · Will et al. · 2023 [cited by applicant]
US 11801154B2 · Bache et al. · 2023 [cited by applicant]
US 20110071647A1 · Mahon · 2011 [cited by examiner]
US 20150230945A1 · Bache · 2015 [cited by examiner]
US 20200297514A1 · Prescott et al. · 2020 [cited by applicant]
US 20230121736A1 · Gair, Jr. · 2023 [cited by applicant]
US 20230255803A1 · Kuniholm · 2023 [cited by examiner]
CN 103655011B · 2016 [cited by applicant]
CN 111803251B · 2023 [cited by applicant]
CN 113855348B · 2024 [cited by applicant]
Baldock, M., et al., “Adjustable prosthetic sockets: a systematic review of industrial and research design characteristics and their justifications”, Journal of NeuroEngineering and Rehabilitation, vol. 20, Nov. 6, 2023… [cited by applicant]
Biddiss, E., et al., “Upper-limb prosthetics: critical factors in device abandonment”, Am J Phys Med Rehabil, vol. 86, No. 12, Dec. 2007, pp. 977-987. [cited by applicant]
Cruz, D. M., et al., “Assistive Technology Accessibility and Abandonment: Challenges for Occupational Therapists”, The Open Journal of Occupational Therapy, vol. 4, No. 1, Jan. 2016, 9 pages. [cited by applicant]
Drew, A. J., et al., “Transhumeral loading during advanced upper extremity activities of daily living”, Plos One, vol. 12, No. 12, Dec. 19, 2017, 13 pages. [cited by applicant]
Hallworth, B. W., et al., “A Modular Adjustable Transhumeral Prosthetic Socket for Evaluating Myoelectric Control”, IEEE Journal of Translational Engineering in Health and Medicine, vol. 8, Jul. 1, 2020, 10 pages. [cited by applicant]
Hansen, T. C., et al., “A Multi-User Transradial Functional-Test Socket for Validation of New Myoelectric Prosthetic Control Strategies”, Front. Neurorobot., vol. 16, Jun. 17, 2022, 12 pages. [cited by applicant]
Hanspal, R. S., et al., “Prosthetic socket fit comfort score”, Disability and Rehabilitation, vol. 25, No. 22, Jul. 1, 2003, pp. 1278-1280. [cited by applicant]
Lao, C., et al., “A market landscape and strategic approach to increasing access to prosthetic devices and related services in low- and middle-income countries”, ATscale under the AT2030 Programme, Apr. 2020, 56 pages. [cited by applicant]
Mcdonald, C. L., et al., “Global prevalence of traumatic non-fatal limb amputation”, Prosthetics and Orthotics International, vol. 45, vol. 2, Apr. 2021, pp. 105-114. [cited by applicant]
Miller, L. A., et al., “A novel, low-cost transradial socket fabrication method using mass-producible components and expanding rigid foam”, Prosthetics and Orthotics International, vol. 45, No. 1, Feb. 2021, pp. 89-93. [cited by applicant]
Olsen, J., et al., “3D-Printing and Upper-Limb Prosthetic Sockets: Promises and Pitfalls”, IEEE Trans Neural Syst Rehabil Eng., vol. 29, 2021, 9 pages. [cited by applicant]
Pruzansky, M. E., “Right Arm Normal Anatomy”, HandSport Surgery Institute, Oct. 2, 2023. [cited by applicant]
Rand, S., et al., “Upper Limb Amputations”, PM&R KnowledgeNow., available online at: <https://now.aapmr.org/upper-limb-amputations/>, Aug. 26, 2021, 29 pages. [cited by applicant]
Stelt, M. V., et al., “Strength testing of low-cost 3D-printed transtibial prosthetic socket”, Proc Inst Mech Eng H., vol. 236, No. 3, Dec. 1, 2021, pp. 367-375. [cited by applicant]
Zuniga, J., et al., “Cyborg beast: a low-cost 3d-printed prosthetic hand for children with upper-limb differences”, BMC Research Notes, vol. 8, Jan. 20, 2015, 9 pages. [cited by applicant]
Zuniga, M. Z., et al., “Remote fitting procedures for upper limb 3d printed prostheses”, Expert Review of Medical Devices, vol. 16, No. 3, 2019, pp. 257-266. [cited by applicant]