The document summarizes the evolution of artificial limbs from ancient Egypt to modern times. It discusses some of the earliest known prosthetics from ancient Egypt dating back to 2750-2625 BC. It then outlines key developments in prosthetics throughout history from ancient Greece and Rome to modern innovations like the Jaipur Foot, microprocessor knees, myoelectric arms, and cutting edge research into areas like osseointegration and mind-controlled prosthetics.
Four Main Types of Artificial Limbs, by Matthew GaribaldiMatthew Garibaldi
There are four different types of artificial limbs. Here is a presentation that elaborates on these, and talks about some of the challenges amputees will face with these different types of prosthesics.
Well explained slides about lower limb prosthesis of knee and hip after transfemoral ans transtibial amputation. Hip disarticulation and bilateral amputation not discussed
Over the past decade, technology and research have greatly expanded the functionality and aesthetics of prosthetic feet. Today, amputees have a wide array of feet from which to choose. Various models are designed for activities ranging from walking, dancing and running to cycling, golfing, swimming and even snow skiing.
A complete description of the lower limb orthosis is available in the following presentation with an in depth understanding of the same.It covers the ankle foot orthosis,Knee orthosis the knee ankle foot orthosis and hip orthosis.
ADVANCED UPPER LIMB ORTHOTIC MANAGEMENT IN STROKE PPT.pptxDibyaRanjanSwain3
In this ppt we have included stroke and its types and causes and advanced orthotic management of stroke for upper extrimity. like shoulder orthosis, elbow orthosis, wrist and hand orthosis and also electrical stimulation. also the biomechanics of shoulder orthosis and elbow and wrist hand orthosis also included.
Four Main Types of Artificial Limbs, by Matthew GaribaldiMatthew Garibaldi
There are four different types of artificial limbs. Here is a presentation that elaborates on these, and talks about some of the challenges amputees will face with these different types of prosthesics.
Well explained slides about lower limb prosthesis of knee and hip after transfemoral ans transtibial amputation. Hip disarticulation and bilateral amputation not discussed
Over the past decade, technology and research have greatly expanded the functionality and aesthetics of prosthetic feet. Today, amputees have a wide array of feet from which to choose. Various models are designed for activities ranging from walking, dancing and running to cycling, golfing, swimming and even snow skiing.
A complete description of the lower limb orthosis is available in the following presentation with an in depth understanding of the same.It covers the ankle foot orthosis,Knee orthosis the knee ankle foot orthosis and hip orthosis.
ADVANCED UPPER LIMB ORTHOTIC MANAGEMENT IN STROKE PPT.pptxDibyaRanjanSwain3
In this ppt we have included stroke and its types and causes and advanced orthotic management of stroke for upper extrimity. like shoulder orthosis, elbow orthosis, wrist and hand orthosis and also electrical stimulation. also the biomechanics of shoulder orthosis and elbow and wrist hand orthosis also included.
Tans femoral Amputee : Prosthetics Knee Joints.pptxKezaiah S
Prosthetic knee joints are artificial devices designed to replace the function of a natural knee joint in individuals who have lost their knee joint due to injury, disease, or amputation.
Tans femoral Amputee : Prosthetics Knee Joints.pptxKezaiah S
Prosthetic knee joints are artificial devices designed to replace the function of a natural knee joint in individuals who have lost their knee joint due to injury, disease, or amputation.
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disability is a physical or mental condition that limits a person’s movement , sense or activities.
It is an important public health problem especially in developing countries like India . Any form of disability cannot be fully restored but measures and efforts can be put in to improve the conditions.
prosthetic devices are an artificial device that replaces a missing body part which may be lost through trauma, diseases or congenital conditions.
Purpose- used to replace a missing limb to perform functional tasks.
The importance of Rehabilitation explains about the trends in development of prosthetic and orthotic devices and how, the technology can be used to improve the current devices in the market. Devices for mobility, Devices for visual impairment and hearing impairment and its uses are explained.
An artificial limb usually replaces a missing limb, such as an arm or leg.
The type of artificial limb used is determined largely by the extent of amputation of the missing extremity – each one is a little different.
Reasons include disease, accidents, and congenital (birth) defects.
Prosthesis upper limb and lower limb.pptxBadalverma11
Physiotherapy- Complete details about prosthesis both upper and lower limb, and training and physiotherapy management #gait training #sports
Contents-
Introduction
Purpose
Components
Upper limb- above elbow And below elbow, socket, cable mechanism, elbow and wrist unit, hand/terminal device
Lower limb- above knee, below knee and syme prosthesis
Socket- quadrilateral, PTB
Knee and ankle unit
Foot
Physiotherapy management -
First therapy, muscle strengthening, mobility
Training of don and doff , care of. Stump and bandaging
Gait training and sports
@cpu
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
The Gram stain is a fundamental technique in microbiology used to classify bacteria based on their cell wall structure. It provides a quick and simple method to distinguish between Gram-positive and Gram-negative bacteria, which have different susceptibilities to antibiotics
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
Basavarajeeyam is a Sreshta Sangraha grantha (Compiled book ), written by Neelkanta kotturu Basavaraja Virachita. It contains 25 Prakaranas, First 24 Chapters related to Rogas& 25th to Rasadravyas.
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
3. Answer to Quiz
Tom Whittaker, a British, the first person without a leg to
climb the Everest 1998
Arunima Sinha, UP, India, the first woman without a leg
to climb the Everest 2013
5. Egyptian Mummy:
The 5th Egyptian Dynasty (2750-2625 B.C.); archaeologists have
unearthed the oldest known splint from that period.
Image source: http://www.egyptarchive.co.uk/html/hidden_treasures/hidden_treasures_31.html
6. Prosthetic care History
• The 5th Egyptian Dynasty (2750-2625 B.C.);
• The earliest written reference:
Herodotus,500 B.C., wrote of a prisoner who
escaped from his chains by cutting off his
foot, which he later replaced with a wooden
substitute.
• An artificial limb from 300 B.C.: A copper &
wood leg (unearthed at Capri, Italy in 1858.)
7. Ancient to Modern technology
• The earliest recorded mention is the
warrior queen Vishpala in the Rigveda.
• Rigveda : 1000 BC
• In 1529, French surgeon, Ambroise
Pare (1510-1590) introduced amputation as
a lifesaving measure in medicine. He started
developing prosthetic limbs scientifically
10. LOWER-EXTREMITY PROSTHESES
A Good prostheses design –
Must minimize the risk of injury associated with
stumbling, slipping and falling.
Socket
(Customized
component)
Residual limb
(soft tissue and bones)
11.
12. “Jaipur foot”: 1969.
• Dr P K Sethi: Orthopedic surgeon.
(1927 –2008)
• An inexpensive and
flexible artificial limb.
• Ram C Sharma, co-invented the
“Jaipur foot”
14. The Jaipur foot
•
•
•
•
Inexpensive prosthetic foot – India
Made of vulcanized rubber
Wooden keel
Consists of three inserts: fore-foot and heel of micro cellular rubber
and an ankle of laminated wood
• Flexibility in three planes
• Well suited for walking over uneven terrain, climbing trees, etc.
15. In case of partial amputation, inserts within a conventional shoe are can be
applied.
Energy-stored feet.
In general, it is realized via flexible keel, which provides non-linear spring action
similar to the push-off phase of walking or running.
DYNAMIC RESPONSE FEET
The distinguishing characteristic of this
group is a plastic spring mechanism in
the keel which deflects during heel off
and returns to its resting position during
toe off. Often called "energy storing" by
manufacturers, these feet provide a
subjective sense of push-off for the
wearer, a more normal range of
motion, and a more symmetric gait.
SINGLE-AXIS FOOT
Single axis solid ankle cushioned heel (SACH) prosthetic foot – provides planar
flexion and smooth transition to mid-stance; increased knee stability; best
suited for short-term use, such as on preparatory devices or for elders who
may walk with a shuffling gait and never fully load the forefoot.
17. Design considerations& Performance
factors to consider when designing a prosthesis.
•
Fit – athletic/active amputees, or those
•
with bony residua, may require a
Ground compliance – stability independent of
terrain type and angle
carefully detailed socket fit; less-active
•
Rotation – ease of changing direction
patients may be comfortable with a
•
Weight – maximizing comfort, balance and
speed
'total contact' fit and gel liner
•
Energy storage and return – storage of
•
Suspension – how the socket will join and fit to
the limb
energy acquired through ground contact
and utilization of that stored energy for
propulsion
•
Energy absorption – minimizing the
effect of high impact on the
musculoskeletal system
The patient’s concerns
•
•
•
•
Cosmetics
Cost
Ease of use
Size availability
18. Knee joint – much important component
• It should be lightweight
and safe in operation.
• Simple mechanical
/manually operated
locking mechanism
• Low functionality
• Doesn’t allow
bending during the
swing phase.
19. Otto-Bock knee
prostheses:
3R45 Modular Knee Joint
An optimal gait pattern is
achieved by adjusting the
independent swing phase
flexion and extension
resistances
Integrated miniature
hydraulic cylinder
20. Hydraulic knees
• They allow stance and swing phase control; Adjustment of
the swing phase to suit to individual’s pattern of walking.
• Hydraulic resistance to flexion;
• Lock of the knee joint in hyperextension;
• Unlock the joint when the forces to the prosthetic forefoot
exceed threshold;
• Manual lock option: for activities which require maximal
stability (driving ,standing on a bus, vocational activities);
• Release for maximum flexibility.
21. Solutions:
• Piston and a hydraulic cylinder.
• The cylinder is perforated to allow fluid to flow from one
side of the cylinder to the opposite side when the piston
moves.
• The distribution of the holes within the cylinder determines
the amount of damping.
• Hydraulic cylinder and piston.
• Holes on the cylinder ends and electromagnet-controlled
valve determine the fluid flow.
• Microprocessor control unit and a hall-effect sensor for
knee-bending measurement.
24. Four bar linkage knee The
The most common type of
mechanism is the four-bar
linkage in a modern day
prosthesis
25. Prosthetic gait analysis
Biomechanical techniques for assessing the adaptation of the user to the prostheses:
Gait analysis & force-reactions measurement are important & can be measured
•Prosthethic limbs do not provide direct proprioceptive feedback.
•Force information is transferred via the socket.
•Often prostheses produce sound or vibrations with the force and cadence.
People with lower-limb prostheses use a higher oxygen consumption, which
varies to the different model prostheses.
ANSYS has pioneered the development and application of Simulation Methods to
solve the most challenging product engineering problems. Simulation software
enables organizations to confidently predict how their products will operate in the real
world.
26.
27.
28. CAD-CAM design: Custom Fit
•
•
•
CAD-CAM design can be applied in
the socket production.
The wire-frame model
representation of the socket
modified.
Quantification and automation of
prosthesis and custom footwear
design and manufacture
29.
30. Microprocessor controlled prosthesis
• C-Leg
• The main advantage of
microprocessor
controlled prosthesis is
closer approximation to
an amputee’s natural
gait
32. The Endolite intelligent prosthesis
•Swing-phase controller
(in different cadences)
•4-bit microprocessor
which controls a needle
valve, via a stepper motor
•The controller is
programmed to provide an
optimal damping in
different walking patterns.
33. Myoelectric Versus Mechanical body powered prosthesis
• Uses Electromyography Signals or potentials from voluntarily contracted
muscles within a person's residual limb on the surface of the skin to control
the movements of the prosthesis
• Elbow flexion/extension, wrist supination/pronation (rotation) or hand
opening/closing of the fingers.
• Utilizes the residual neuro-muscular system of the human body to control
the functions of an electric powered prosthetic hand, wrist or elbow.
• It has a self suspending socket with pick up electrodes placed over flexors
and extensors for the movement of flexion and extension respectively.
• The first commercial myoelectric arm was developed in 1964 by the Central
Prosthetic Research Institute of the USSR, and distributed by the Hangar
Limb Factory of the UK.
34.
35. Robotic arms
•
•
•
•
•
Advancements in the processors used in myoelectric arms has allowed to make gains in fine tuned control
of the prosthetic.
The Boston Digital Arm is a recent artificial limb that has taken advantage of these more advanced
processors. The arm allows movement in five axes and allows the arm to be programmed for a more
customized feel.
Recently the i-Limb hand, invented in Edinburgh, Scotland, by David Gow has become the first
commercially available hand prosthesis with five individually powered digits. The hand also possesses a
manually rotatable thumb which is operated passively by the user and allows the hand to grip in
precision, power and key grip modes.
The hand, manufactured by "Touch Bionics“ of Scotland (a Livingston company), 2007 in Britain.
Another neural prosthetic is Johns Hopkins University Applied Physics Laboratory Proto 1. & Proto 2
in 2010.
36. Bionics
Having artificial body parts, esp. electromechanical
ones. Having ordinary human powers increased by
or as if by the aid of such devices
41. • Flexfoot Cheetah carbon-fibre
running blades by Össur
• Born without fibulae and
with malformed feet, his legs
were amputated about
halfway between knee and
ankle so he could wear
prosthetic legs.
42. Italian racer Alex Zanardi made
careers in both CART and Formula
One racing.
In September of 2001, he was
leading a race when a near-fatal
accident caused him to lose both
legs above the knee.
Rather than retire, Zanardi
designed his own prosthetic legs.
By 2003 he was racing again with a
car modified with a handcontrolled accelerator and brakes,
and was racing full time again by
2005.
43. THE FUTURE
3-D spatial geometry and
surface topography of
amputee’s residual limbs
Neural extension
Thought command
Fit and forget prosthesis
TECHNOLOGY & InnOVATion
Merging the body With the machine
12% overlap : Biology & Technology
44. The first robotic arm which is mind-controlled and
can be permanently attached to the body
• Early in 2013, Chalmers
University of Technology,
and Sahlgrenska University
Hospital in Sweden,
succeeded in making the
first robotic arm which is
mind-controlled
• It can be permanently
attached to the body
• Osseointegration
• Max Ortiz Catalan and
Rickard Brånemark
45. Somato-sensory Neuro-prosthesis
•
A new study it is hoped that artificial hands could regain their sense of touch.
•
By surgically connecting the brain with an artificial fingertip equipped with
sensors, researchers found that it is possible for animals to feel contact and pressure
with their hands, paving the way for human trial.
•
Contact sensor, to signal the start and end of handling an object; and a force
sensor, to determine how much strength to exert on an object.
•
A computer then monitors the amount of force that is exerted on the prosthetic
finger, then analyzes the information and delivers an electrical stimulus to the brain,
which they hope will create a sensation that mimics what a real hand would feel.
Bensmaia et al "Behavioral Demonstration of a Somatosensory Neuroprosthesis" Transactions on Neural
Systems and Rehabilitation Engineering
48. Post-Traumatic Stress Disorder in combatants.
•
•
•
41.7% suffered from Post-Traumatic Stress
Disorder.
42.5% of the lower limb amputees, 33.3%
of the upper limb amputees had symptoms
compatible with PTSD
This study highlights the need to pay more
attention in providing psychological care as
a part of the overall health management of
injured combatants.
Abeyasinghe , de Zoysa , Bandara et al
The prevalence of symptoms of Post-Traumatic
Stress Disorder among soldiers with amputation
of a limb or spinal injury: a report from a
rehabilitation centre in Sri Lanka. Psychol
Health Med. 2012;17(3):376-81.
•
•
Lower limb amputees had 50%
more complications than upper limb
amputees.
Two-thirds of patients had a mental
health disorder with rates of major
disorder categories between 18%
and 25%.
Melcer T, Walker GJ, Galarneau et al
Midterm health and personnel outcomes
of recent combat amputees. Mil Med.
2010 Mar;175(3):147-54.
49. Ramachandran’s mirror therapy.
•
•
•
V.S. Ramachandran, University of
California, devised this therapy.
His patient complained an
excruciating phantom arm: Felt
that phantom hand was clenched
so tightly that the fingernails were
digging into his phantom palm.
Ramachandran came up with an
unusual treatment: Placed a mirror
in a cardboard box and instructed
the patient to place his existing
hand inside the box, next to the
mirror.
When the patient looked down at
the mirror, the reflection of his
existing hand stood in as a visual
replacement of his phantom limb
• The patient was told to imagine
that the reflection was in fact the
lost limb, and to practice
clenching and unclenching his
hand while looking in the mirror.
• To the patient's surprise after two
weeks, pain vanished
• Mirror Therapy is now being
adopted by many doctors to
combat phantom pain. It can
also be used to aide people
who have had a stroke and
other types of pain
conditions.
50. “You never conquer a mountain. Mountains can't be conquered; you conquer yourself
And… if you aren't living on the edge, you are taking up too much space”
51. Merging the body With the machine
Touch sensitive & interactive prosthesis
THANK YOU