Hand Arm Vibration Syndrome (HAVS) in fossil preparation Mark R. Graham, Fossil Preparator, The Natural History Museum, London, UK Darren H. Tanke, Senior Technician II, Royal Tyrrell Museum, Alberta, Canada
HAVS is a recognised risk/medical condition HAVS is a recognised risk/medical condition
Profile of survey respondents 180 160 140 120 100 Female 80 Male All 60 40 20 0 No. actual Pro % 1-10 Yrs exp 10+ Yrs exp % %
What at br bran and( d(s) of of ai air s scribe( be(s) h hav ave y e you ou u used? ed? I If ot other er, pl pleas ease e iden dentify u unit m mak ake/ e/model odel. 90.0% 80.0% 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% Chicago ARO De souter Mini/Microjack Other Pneumatic series
HAVS awareness prior to survey Prior or t to an o answer ering t g this s survey ey, h how ow aw awar are w e wer ere y e you ou of of t the e medi edical al c con ondi dition on H HAVS? ( (al also k o know own as as ‘ ‘White F e Finger ger’, ‘ ‘Dead ead Finger ger’ or or ‘ ‘Ray aynau aud’ d’s S Syndr drom ome’ e’). Not at all Partially aware Fully aware
HAVS awareness prior to survey by region 70 60 50 40 N America Europe 30 Other 20 10 0 Not Aware Partial Fully Aware Awareness
77.8% reported no H&S protocol in place Do y o you ou or or y you our em empl ploy oyer er h hav ave a s e a spec pecific h heal ealth an and s d saf afet ety pr prot otoc ocol ol at at y you our h hom ome/ e/institution on t to addr o addres ess t the H e HAVS i issue? e? 85% have received no HAVS Yes training No Hav ave y e you ou ev ever er r rec ecei eived an ed any t trai aining r g regar egardi ding H g HAVS? Yes No
Protective measures taken by those that do have HAVS protocols in place If y you ou h hav ave an e answer ered y ed yes es t to t o the pr e prev eviou ous qu ques estion on do y do you ou (pl pleas ease t e tick as as m man any as as appl apply) 80.0% 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% have limits on airscribing wear protective take other protective periods gloves/padding measures (please specify)
73% of respondents have experienced symptoms (multiple choice questions) Pleas ease i e indi dicat ate w e whet ether er y you ou h hav ave ex e exper perien enced an ed any of of t the e fol ollow owing s g sympt ptom oms ( (han and c d cram ampi ping i g is ex excluded f ded from om t this ques qu estion on): 70.0% 60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% Numbness in Tingling in Fingertips Inability to Enhanced None of the finger or finger or turning white pick up small sensitivity of above fingertips? fingertips? in colour? objects after fingers to extended cold? airscribe use?
For how long do symptoms persist? If y you ou ex exper perien ence H e HAVS s sympt ptom oms do t do thes ese u e usual ally go aw go away ay afte fter: A few minutes A few hours A few days A few weeks A few months It is permanent
Our survey results confirmed the ‘several years’ lead time for symptoms If y you ou h hav ave ex e exper perien enced H ed HAVS s sympt ptom oms w wou ould y d you ou s say ay t the e effe ffects ts: were immediate when you first started using these tools started after several weeks started after several months started after several years
Symptoms may take 10 years to develop “ The hand-arm vibration syndrome causes changes in sensory perception which can lead to permanent numbness of fingers, muscle weakness and, in some cases, bouts of white finger. It is caused by working with vibrating tools. It would be unusual for you to develop hand-arm vibration syndrome unless you had used vibrating tools for at least ten years. If you stop working with vibrating tools it may prevent mild symptoms from getting worse ”. Source: http://www.patient.co.uk
Approx % time spent using airpens 10 20 30 40 50 60 70 80 90 100% 18 12 20 10 22 11 24 23 10 3 = 153 Appr pprox oximat atel ely w what at per percen entage of age of y you our pr prepar eparat ation on w wor orkload do oad do you t yo think i k invo volve ves a s airscr scribes: s: 10 20 30 40 50 60 70 80 90 100
Impact of HAVS, project control and airscribing periods Has as H HAVS i impac pacted y ed you our w wor ork as as a f a fos ossil pr prepar eparat ator or? Are y e you our pr prepar eparat ation on pr proj ojec ects del deliber berat atel ely s spac paced i ed in s such a w a way ay so as o as t to m o minimise or e or al alter ernat ate u e use of e of ai airscribes bes ( (i.e. e. pr proj ojec ect 1 1 har ard r d roc ock n needi eeding ai g airscirbes bes, pr proj ojec ect 2 2 s sof oft r roc ock, n no ai o airscribes bes etc tc.) .) Never Occasionally Regularly Yes No I can no longer use vibration- causing preparation tools What at i is t the l e lon onges gest t time y e you ou h hav ave s e spen pent i in a day a day ai airscribi bing? g? 1-2 hours 2-4 hours 5-6 hours 7-8 hours More than 8 hours
http://www.hse.gov.uk/vibration/hav/index.htm Version 3 June HAND-ARM VIBRATION EXPOSURE CALCULATOR 2005 Vibratio Exposu Time to reach n re EAV Time to reach ELV Exposure Partial Partial magnitu time in 5 m/s 2 time in time in exposu partial exposu 2.5 m/s 2 A (8) de points min A (8) min duration mins re exp re m/s ² per minut minut hou minut m/s ² r.m.s. hour hours es hours es rs es A (8) points Tool or process 1 0 Tool or process 2 0 Tool or process 3 0 Tool or process 4 0 Tool or process 5 0 Tool or process 6 0 0 Instructions for use: Daily Total exposu exposu re re m/s ² Enter vibration magnitudes and exposure durations in the white areas. A (8) points To calculate, press the Enter key, or move the cursor to a different cell. The results are displayed in the yelllow areas. To clear all cells, click on the 'Reset' button. For more information, click the HELP tab below.
Padded gloves & airscribe collars offer comfort only, not protection against HAVS
Be aware and safeguard yourself!
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