Indian Journal of Plastic Surgery
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 IDEAS AND INNOVATIONS
Year : 2015  |  Volume : 48  |  Issue : 3  |  Page : 293--296

Simple device to determine the pressure applied by pressure clips for the treatment of earlobe keloids


1 Department of Plastic and Reconstructive Surgery, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
2 Department of Bioengineering, Christian Medical College and Hospital, Vellore, Tamil Nadu, India

Correspondence Address:
Ashish Kumar Gupta
Department of Plastic Surgery, Christian Medical College and Hospital, Vellore - 632 004, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-0358.173128

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Background: Keloids of the ear are common problems. Various treatment modalities are available for the treatment of ear keloids. Surgical excision with intralesional steroid injection along with compression therapy has the least recurrence rate. Various types of devices are available for pressure therapy. Pressure applied by these devices is uncontrolled and is associated with the risk of pressure necrosis. We describe here a simple and easy to use device to measure pressure applied by these clips for better outcome. Objectives: To devise a simple method to measure the pressure applied by various pressure clips used in ear keloid pressure therapy. Materials and Methods: By using a force sensitive resistor (FSR), the pressure applied gets converted into voltage using electrical wires, resistors, capacitors, converter, amplifier, diode, nine-volt (9V) cadmium battery and the voltage is measured using a multimeter. The measured voltage is then converted into pressure using pressure voltage graph that depicts the actual pressure applied by the pressure clip. Results: The pressure applied by different clips was variable. The spring clips were adjustable by slight variation in the design whereas the pressure applied by binder clips and magnet discs was not adjustable. Conclusion: The uncontrolled/suboptimal pressure applied by certain pressure clips can be monitored to provide optimal pressure therapy in ear keloid for better outcome.






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