Presentation of the prosthetic hand’s human-cherish motions, including, functional features, and impacted individual experiments (Photo by USTC). Debt ranking: Hao Yang et al.
A group of scientists from the University of Scientific Research and Know-how of China (USTC) has actually presently established a light-weight prosthetic hand with 19 levels of liberty (DOF), in a setting to reproducing human hand features. This pattern can advocate within the handy recovery and day in day out tasks of numerous numerous better-limb amputees. The research study was disclosed in Nature Communications.
The human hand, with its 23 levels of liberty, represent approximately 54% of the body’s complete movement ability, in spite of considering easiest round 1/150 of the body weight. However, strange prosthetic arms typically depend on motor-driven devices, which typically encounter obstacles therefore reduced vigor thickness, following in troubles stabilizing in between DOF and weight. Occurring from this truth, creating much more useful prosthetic arms needs resolving each and each too much DOF dexterous movement and individual convenience.
To deal with the possibility, the research study group made use of shape-memory alloys (SMA) with too much vitality-to-weight proportions as male made muscular tissue actuators. They utilized a biomimetic tendon-driven transmission plan that magnifies the motoring stress of the SMA whereas decreasing transmission resistance. Largely based upon the qualities of tendon-cherish different transmissions, the scientists incorporated 23 sensing unit things right into the fingers and wrist to discontinue exact joint control.
In addition, the prosthetic hand includes a cooling component with 38 SMA actuators, making it possible for 19 energised DOF. Due to of this biomimetic procure and too much combination, the prosthetic hand evaluates easiest 0.37 kg and has human-stage mastery, in a setting to executing day in day out efforts comparable to brushing hair, composing, trembling arms, trading alternative having fun cards, and taking fifty percent in chess.
When it comes to capability, the prosthetic hand incorporates insist recognition technology, offering a very easy, straightforward, and charge-effective human-machine communication plan. It assists 60 languages and 20 languages, with an acknowledgment precision price of 95% and a feedback time determined in nanoseconds, making it suitable for typical usage amongst amputees.
Aside From that, the hand likewise shows the versatility to function scissors, make use of a smart device, and kind progressed signal language motions. It duplicated 33 strange human hand realizing activities and included 6 even more established realizing activities, offering a large vary of software program situations.
In recap, this research study stands for a skyrocket onward within the technique of prosthetics. The brand-new innovation has the practical to alternative the lives of amputees by providing the versatility to move even more openly, kind day in day out efforts with greater convenience, and acquire their self guarantee. In addition, the hand reveals wonderful practical for design applications, offering an effective option for every single and each humanoid robot mastery and excessive-efficiency prosthetic hand research study.
Added recordsdata:
Hao Yang et alia, A steady-weight prosthetic hand with 19-DOF mastery and human-stage features, Nature Communications (2025 ). DOI: 10.1038/s41467-025-56352-5
Quote:.
Light-weight prosthetic hand fits human mastery with 19 levels of liberty (2025, February 13).
recovered 13 February 2025.
from https://techxplore.com/recordsdata/2025-02-lightweight-prosthetic-human-dexterity-degrees.html.
This doc is enviornment to copyright. Aside from any type of outrage dealing for the objective of exclusive check out or examine, no.
piece can be replicated without the created authorization. The verbalize is prepared for recordsdata features easiest.
发布者：Adam Guttaduaro，转转请注明出处：https://robotalks.cn/lightweight-prosthetic-hand-matches-human-dexterity-with-19-degrees-of-freedom/
