A Pleximeter is a device used in percussion

Percussion (medicine)

Percussion is a method of tapping on a surface to determine the underlying structure, and is used in clinical examinations to assess the condition of the thorax or abdomen. It is one of the four methods of clinical examination, together with inspection, palpation and auscultation...

 to absorb the energy generated by the strike from the plexor

Plexor

The plexor is usually the middle finger of the examiner's right hand is kept flexed so as to form a right angle between the proximal and middle phalanges. During percussion, the middle finger of examiner's hand is routinely used as pleximeter and the technique involves making series of strokes with...

.
During percussion the middle finger of examiner's hand is routinely used as pleximeter. The finger of the examiner's left hand is firmly applied to the chest wall so as to displace any air between it and the chest wall and the plexor strikes on the middle phalanx

Phalanx bones

In anatomy, phalanx bones are those that form the fingers and toes. In primates such as humans and monkeys, the thumb and big toe have two phalanges, while the other fingers and toes consist of three. Phalanges are classified as long bones.The phalanges do not have individual names...

 of the pleximeter. It can also be an instrument made of wood

Wood

Wood is a hard, fibrous tissue found in many trees. It has been used for hundreds of thousands of years for both fuel and as a construction material. It is an organic material, a natural composite of cellulose fibers embedded in a matrix of lignin which resists compression...

, ivory

Ivory

Ivory is a term for dentine, which constitutes the bulk of the teeth and tusks of animals, when used as a material for art or manufacturing. Ivory has been important since ancient times for making a range of items, from ivory carvings to false teeth, fans, dominoes, joint tubes, piano keys and...

, or other substances.

External links

• http://cancerweb.ncl.ac.uk/cgi-bin/omd?pleximeter
• http://www.shahrukh.co.uk/resp/examination2.html