To heal a chronic wound and continuously monitoring healing process remotely by using smart bandage technology

1. A
Seminar Presentation on
Smart Bandage Technology
Under the Guidance of
PUSHPALATHA .S
Associate Professor
Department of DECS
VTU,PG Centre,Mysuru
Presented by
Gopinath k v
4VZ16LDS05

2. INTRODUCTION
• Advances in wearable and flexible electronics along with
the growth of wireless networking have created new
paradigms of applications for smart living.
• Increase in population and rising cost of healthcare services
have also created a growing demand to monitor a patient‟s
health in personal environment outside of a hospital.
• Chronic wounds are wounds that do not follow normal
healing processes and timelines.
• They bleed randomly and show variations in pH levels as a
result of infection.
• External pressure can also cause these wounds to become
chronic.

3. Why It Is Better ?
• There are currently no commercially available
wireless devices to continuously monitor the
wound-healing process.
• The proposed smart bandage, for the first
time, provides a complete wearable system to
wirelessly monitor chronic wounds in real-
time.

4. Technology Details
• This technology comprises two parts .
1) The first part contains a disposable bandage with inkjet-printed
sensors.
2) second part consists of a reusable electronic sensors.

5. Technology Details(cont..)
• (a) Bottom side of the bandage showing printed carbon based sensor
electrode.
• (b) Top side of the bandage showing folded connection of the
bottom electrode.
• (c) Top side of inkjet printed circuit board on kapton tape.
• (d) Bottom side of the circuit board highlighting vias and pads for
connecting bottom sensor electrode.

6. • (e) Detachable electronics comprising Kapton
printed circuit tape after mounting of the
components.
• (f) Electronics being mounted on the bandage.
• (g) Smart bandage enclosed by a bandage strip
acting as a cover package.
• (h) The detachable electronics can be easily
removed from the bandage after use.

7. How It Works?
• The smart bandage is part disposable and part reusable. The
sensors used to detect bleeding, pH levels and external pressure on
the wound are located on a disposable bandage
• whereas the electronics on the flexible kapton tape can be
detached and reused multiple times.
• The capacitive sensor detects bleeding, as well as pressure levels on
the wound.
• A resistive sensor detects pH levels on the wound. The changes in
capacitance and resistance are processed by the electronics, and
the information is sent in a wireless fashion.
• The wireless communication is done through an inkjet-printed loop
antenna that is integrated with the circuit. This data can then be
sent to remote health care providers using either the mobile
network or the internet

8. Antenna measurement
• The system level measurements have
been performed that involve the wireless
tests of the bandage with electronics
mounted.
• The active pattern is omnidirectional as
expected from a loop antenna. Also the
antenna is impedance matched at the
operating frequency of 2.4 GHz.

9. Applications
• Consumer healthcare
• Hospitals and long-term remote health care
• Bed sore management

10. Benefits
• Reduces healthcare costs for patients.
• Detects infections in a timely manner
• Better wound management
• Reusable electronics can be used on multiple
disposable bandages
• Pressure sensors can alert patients and help them
avoid pressure ulcers
• Provides dressing alerts for patients
• Hassle free wireless and real-time monitoring

11. CONCLUSION
• The development and characterisation of the sensors
capable of providing qualitative and quantitative data.
• The measurement of pH has been suggested as a
useful marker for both wound infection but also for
assessing healing physiology.
• The development of new, rapid PoCT diagnostics is
needed to allow the early detection of the non-
preventable infection of wounds.

12. THANK YOU