Customizable functional upper limb prostheses for children & adults
In the EU approx. 3500 children suffer annually
from an upper-limb deficiency as a result of pediatric amputation or inborn upper-limb reductions each year
1,2 million people globally require hand prosthesis
including orthotics services to have a decent life
Only 20% use prostheses and less then 5% use functional prosthesis. Why?
Ignorance about modern prostheses
Financial or actual unavailability
One-fit-all design solutions not addressing individual need
Clinical importance of the robotic arms usage
  • Musculoskeletal disorders of the arm (2)
    Unilateral upper limb amputation leads to weight loss and loss of function, which in turn can result in musculoskeletal disorders of the arm, specifically muscle atrophy.
  • Muscular asymmetries (3)
    Unilateral upper limb amputation leads to weight loss and loss of function, resulting in a shift in the center of gravity and muscular asymmetries. Additionally, weight loss can contribute to scoliosis with a bowing towards the side of amputation, while the loss of function leads to compensatory movements and overactivity of certain muscles, causing postural changes and increased stress on the hip joint.
  • Abnormalities of the spine in relation to congenital upper limb deficiencies (4)
    The patients with congenital upper limb deficiencies had an increased incidence of scoliosis compared with the general population. The results of bracing were poor, due to patient rejection of the brace.
  • Overuse symptoms in patients with unilateral upper limb amputation (5)
    Missing one of the hands, individuals may experience increased strain and reliance on their remaining hand, which can lead to various issues and discomfort such as pain, fatigue, muscle tension, or overuse. These symptoms can arise due to the heightened demand placed on the remaining limb during daily tasks and activities that are typically performed with both hands. Problems were noted in the remaining arm in 50% of cases.
Prosthesis affect other aspects of life
  • Psychological and emotional well-being
    It helps them regain confidence, self-esteem, and a sense of normalcy, reducing feelings of loss and improving their emotional well-being. (6)
  • Quality of Life and idependence
    Users move and navigate their environment, which significantly impacts their independence. They also can engage in various other activities improving their quality of life. (7)
  • Family relationship and social interactions
    Prosthesis have a positive impact on family dynamics and relationships. Prosthetics allow individuals to actively participate in social and community activities, participate in events, minimize this sense of difference, regaining a sense of worth. (8)
  • Leisure activities and employment
    Prostheses enrich persons' lives outside of medical routines. For individuals in the workforce, the use of prosthetics can significantly impact their ability to maintain or find employment.
Market needs new solution
  • Choice between affordability and comfort required
    The available solutions are either complicated to use or do not fit into all budgets.
  • Maintenance is a continuous issue
    Present difficulties of maintenance and repair.
  • Existing solutions are limited
    Limited solutions for the majority of transradial and partial hand amputees.
  • Esthetic aspects
    A new generation of users
    demands fashionable solutions.
  • Expensive (especially for kids)
    Kids need to change prosthetics
    very often, making
    rehabilitation particularly
  • Self-esteem (especially for kids)
    Kids have the most substantial
    psychological barrier in using
    the prosthesis (ex., bullying).
Our solution
We specialize in developing and producing functional hand prosthetics and rehabilitation technologies. We assist individuals with congenital conditions and amputations at the wrist and forearm level, providing powerful and controllable upper limb prostheses.
We enhance the quality of life
Designed and suitable for users of any age, including children, and various types of congenital and acquired hand injuries (aplasia) at the wrist and forearm level. Easy to handle and comfortable to carry all day long, keeping the arm muscles toned and preventing curvature of the spine.

Our functional 3D-printed prostheses are 100% body powered or robotic. They might be complemented by gadgets that extend human capabilities, allowing users to control their lives and actions fully. Kids especially love the idea of being superheroes with extra-human powers, they receive by using our prostheses.

Our Advantages
3D printing provides several advantages. First of all, it's very much customizable resulting in comfort. Second, the cost is very affordable, which is an important aspect to consider for kids who need to change their prostheses often because of their growth. Finally, the maintenance is quick because the production cycle is very quick.
Esthetics and self-esteem
By being very customizable, we can produce a prosthesis of any configuration and taste. Moreover, we change the paradigm of prosthetic usage. Nowadays, individuality is highly appreciated. We promote and support a sense of uniqueness for our clients. For example, a child can choose to have a superhero hand, suitable for his/her favorite gadget or toy implementation, and also decide on having a picture of a favorite character and also choose shape and color.
Our revolutionary solution tailored to address the limitations faced by the majority of transradial and partial hand amputees. Unlike existing options, our functional prosthetic offers an intuitive and user-friendly design, eliminating complexity and ensuring ease of use.
AR, VR, gamification
for rehabilitation, and
  • Have been successfully used in several medical field but for orthopedic rehabilitation is scant
  • Most of the existing solutions target adult population
  • Remote virtual technologies allow the delivery of high-quality care at reduced cost

HeroHand's Purpose

We want to become the global leading company in rehabilitation technology recognized for our cutting-edge innovations and humandriven expertise

We aim to empower people with limb deficiency to feel powerful and in absolute control of their quality of life and happiness, providing them with functional, customizable, and affordable prosthetic solutions.

Customer centricity
Quality and reliability
Physical, emotional and social wel-being
Continuous learning
Social impact
Experienced team
  • Vlad Rumyantsev
    Social entrepreneur specialized in
    digital manufacturing
  • Yulia Smal
    Product and BD director
    Biomedical engineer and entrepreneur in
    health care
  • Paulo Peças
    R&D director
    IST professor. Expert in
    Industralization 4.0
  • Mariia Melnikova
    Medical consultant
    General medicine doctor with expertise in injuries in pediatrics
Our Partners
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YOU heard from us...
we'd love to hear from YOU
Phone: +351 963469033
Email: vlad.rum.pt@gmail.com


World Health Organization,Geneva, Switzerland, 2017
Greitemann B, Güth V, Baumgartner R. Asymmetrie der Haltung und der Rumpfmuskulatur nach einseitiger Armamputation--eine klinische, elektromyographische, haltungsanalytische und rasterphotogrammetrische Untersuchung [Asymmetry of posture and truncal musculature following unilateral arm amputation--a clinical, electromyographic, posture analytical and photogrammetric study]. Z Orthop Ihre Grenzgeb. 1996 Nov-Dec;134(6):498-510. German. doi: 10.1055/s-2008-1037445. PMID: 9027119.
Powers Е A et al. Journal of Pediatric Orthopaedics 3(4):p 471-474, September 1983.
Jones, L. E.1,; Davidson, J. H.1 Prosthetics and Orthotics International 23(1):p 55-58, April 1999. 6.
Mayer A, Kudar K, Bretz K, Tihanyi J.Prosthet Orthot Int. 2008 Sep;32(3):363-82.
Yamamoto M, Chung KC, Sterbenz J, Shauver MJ, Tanaka H, Nakamura T, Oba J, Chin T, Hirata H. Plast Reconstr Surg Glob Open. 2019 May 24;7(5):e2205.
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