Company

LOGO

Implantable Medical Devices

BY CHIRAG

IMD

Implant:

Man-made Medical Devices

Carmel J Caruana Medical Physics IHC Univ of Malta

3

Prosthetic Devices - Implants

Robotic device for knee prosthesis implantation

Carmel J Caruana Medical Physics IHC Univ of Malta

4

Prosthetic Devices – „Artificial Organs“

Artificial heartCochlear implant

Retinal implant

VentilatorCardiopul-monary bypass

IMD

Medical Device Definition An instrument, apparatus, implement, machine, contrivance,

implant, in vitro reagent, or other similar or related article, including a component part, or accessory which is:

-Intended for use in the diagnosis of disease or other conditions

-Intended to affect the structure or any function of the body of man or other animals

IMD

Applications

Technique: Total Hip ReplacementTechnique: Total Hip Replacement

Femoral neck Femoral neck resectionresection

 The ball and socket components are made of metal. These metal implants have been used in total hip replacement surgeries

TJR Failure and risksTJR Failure and risks Despite the success Despite the success

achieved with most achieved with most primary TJR procedures, primary TJR procedures, factors related to factors related to implant longevityimplant longevity and a and a younger, younger, more active more active patient populationpatient population have have led to a steady increase led to a steady increase in the number of in the number of failed failed TJR’sTJR’s

Surgical Treatment OptionsSurgical Treatment Options Joint preserving Joint preserving

operationsoperations• ArthroscopyArthroscopy• Cartilage transplantationCartilage transplantation• OsteotomyOsteotomy

Arthroplasty Options:Arthroplasty Options:• HemiarthroplastyHemiarthroplasty• Resurfacing Resurfacing

arthroplastyarthroplasty• Total joint Total joint

arthroplastyarthroplasty

Design Process

Specification

Idea / Concept

DesignPrototype /

ProductVerification

Small Production

Validation

Design Review

Technology Transfer

Large Production

Research

Active implantable medical devices

Types

•Implantable cardiac pacemakers•Implantable defibrillators•Cochlear implants•Implantable nerve stimulators (FES)

•Limb function stimulation•Bladder stimulators•Diaphragm stimulator

•Implantable infusion pumps•Implantable active monitoring devices

Active implantable medical devices

Implantable cardiac pacemaker

Active implantable medical devices

Cochlear Implant

Application Fields

• Heart Failure • Obesity• Diabetes• Blood pressure control• Foot drop correction• Urinary incontinence• Patient monitoring

LATEST ADVANCEMENT• Each leg is fitted with a Bluetooth device.

• Bluetooth is more often recognized for its ability to connect pieces of technology together without the use of wires. Bleill’s case, the Bluetooth devices communicate with each other to regulate stride, pressure and speed in the prosthetic legs.

LATEST ADVANCEMENT• With an onboard computer within the prosthesis, people with

above-knee amputations have greater control over walking, stopping and moving on inclines. These “robotic” knees, termed microprocessor knees, analyze the pressure an amputee puts on the missing limb. Also contained within the knee is a fluid control unit, which the microprocessor monitors

to appropriate joint resistance when walking on inclines.

References

[1] Roland Gubisch, Intertek ETL SEMKO, EMC for active implantable medical devices[2]http://en.wikipedia.org/wiki/Implant_(medicine)[3] http://en.wikipedia.org/wiki/Medical_device[4] http://en.wikipedia.org/wiki/VeriChip