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Lau Chung Yin
07-27-1998, 11:55 AM
Dear All

Thanks a lot to those who replied to my query on the matter above. A
summary of the suggestions received is listed below :

-----------------------------------
I found an article, entitled 'A finger function simulator and the
laboratory testing of joint replacements' in Proc Instn Mech Engrs part H:
J Engineering in Medicine 1990;204:233-40.

- Bart Verkerke

------------------------------------
The American Society for Testing and Materials (ASTM)
(I think it is www.astm.org) has tried for a number of years to
develop a standard to test finger prostheses. At this point there
is only F1781-97 that covers elastomeric flexible hinge finger
total joint implants. It is quite sketchy in the area of testing.

One issue is whether to include any axial torsion into
the test. One implant design did fine without any torsion loading, but
failed miserably clinically due to in vivo torsional loading.

> - Fred Werner
>
--------------------------


Sam Lau



> ----------
> From: Lau Chung Yin[SMTP:mpelaucy@NUS.EDU.SG]
> Reply To: Lau Chung Yin
> Sent: Tuesday, July 14, 1998 2:33 PM
> To: BIOMCH-L@NIC.SURFNET.NL
> Subject: Finger joint prosthesis fatigue testing
>
> Dear All,
>
> I am currently working on the design of a simple fatigue tester for a
> finger
> joint prosthesis. Somehow, I have not been able to find any established
> test protocols and standards in this area. I would appreciate any
> contributions and information as to the desired range of motion (ROM), no.
> of cycles, testing medium and any such relevant information for such a
> testing system. I will post a summary of the replies received. Thanks in
> advance.
>
> Best regards
>
> Sam Lau
> Research Assistant
> BIOMAT Centre
>
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