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Exmoor Plastics Ltd
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Somerset, TA1 2LB
Tel +44(0)1823 276837


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Ear Prostheses
CAUSSE UNIVERSAL HA PROSTHESIS
Developed for: Dr. J-B. Causse, Béziers, France

“...I consider them, even if not perfect, to be the best partial prostheses I have ever used in my life”........
Dr. J-B. Causse.


......and they’re just as effective when used as total ossicular replacement prostheses!

....which means that there is no longer the need to keep an assortment of patterns and sizes.
This device comprises three components, namely:
  • a dense hydroxylapatite ‘mushroom’, which is intended to be located on the malleus or directly on the tympanum. Note: clinical experience makes it clear that this material is highly unlikely to extrude.
  • a clear ptfe tube, to fit securely over the stalk of the mushroom, the other end swaged out into a bell shape to fit over the head of the stapes. Note: this component is supplied extra long, so that, if shortened in error, sufficient would remain to allow the surgeon to correct the length of the trimmed tube,
  • a white ptfe plug, which fits securely into the clear ptfe tube (the bell end having been removed), and which is intended to be located on the footplate of the stapes.
Order Code
Pack Quantity
Sterilised by
Elements
Materials
Colour
Flange Dia Ø
Lenght mm
Dia Ø o.d.
Features
ORP/1
1
Steam


ha
white
3.0
1.5
-
-
ptfe
clear
-
20.0
1.32
transparent & easily customised
ptfe
white
-
5.0
0.4
-

‘I was extremely pleased with the result because, in three out of the four cases, there was an over-closure in between 10-15 dB on the 250 Hz, 500Hz and 1KHz. In one case only, there was a slight gap of 5dB on the 1KHz and 10dB on the 2KHz. Obviously, this was my fault: probably the contact with the tympanic membrane was not good enough. There was not enough pressure of the tympanic membrane on the platform of the prosthesis.’

Extract from a letter from Dr. J-B. Causse
Partial  

Gap before partial prosthesis placed

Result
Total
  

Gap before total prosthesis placed

Result
“I confirm that those patients, whom I operated on, two years ago, are doing well.” Dr. J-B Causse, Beziers, France
‘The prosthesis was used over the top of an intact stapes, using the tubular component. A hydroxylapatite cap was placed under the tympanic membrane. It can be seen quite easily through the drum on examination today. The patient is delighted with his progress and it may well be that the hearing will do even better than this but, even if it does not, he is now within the normal range.’

Extract from a letter from Mr. J. Robinson FRCS, following a clinical inspection three months after an ossiculoplasty was performed.
       
   
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