Lafayette Instrument 16013 User manual

Fax: [phone] . www.lafayetteinstrument.com . E-mail: [email protected]
Model 16013 User’s Manual
Model 16013
© 2004 by Lafayette Instrument Company, Inc. All Rights Reserved- Rel. 7.1.04
VON FREY AESTHESIOMETERVON FREY AESTHESIOMETER
VON FREY AESTHESIOMETERVON FREY AESTHESIOMETER
VON FREY AESTHESIOMETER
USER INSTRUSER INSTR
USER INSTRUSER INSTR
USER INSTRUCTIONSUCTIONS
UCTIONSUCTIONS
UCTIONS
DESCRIPTION:
The Von Frey Aesthesiometer consists of a disk
snapped to the handle from which nine graduated
nylon bristles extend. Use of this small but
reliable aesthesiometer provides a quick and
convenient way to establish relative sensitivity in
different regions of the skin.
SAMPLE EXPERIMENT:
Problem
Determine the relative sensitivity of selected areas of the skin.
Material & Apparatus
Von Frey-type aesthesiometer, blindfold (Lafayette’s #33010 blindfold goggle or similar), paper
and pencil.
Procedure
Blindfold Subject (S). Apply the bristle of the aesthesiometer to 8 areas of the skin in the
following manner: press bristle #1 against skin until it flexes slightly. Maintain this slight flex
and ask if S can feel the bristle; if S cannot, apply bristle #2 and so on until S reports feeling
bristle. Apply the next larger bristle and then repeat the above procedure in the reverse
direction until S reports that he can no longer feel the bristle. Be sure to record the number of
the first and last bristle felt each time. This ascending and descending test procedure should be
repeated three times for each bristle at each of the eight sites. Suggested sites: volar pad of
index finger, back of hand, top of forearm (area with hair), underside of forearm (area without
hair), lips, cheek, back of neck and calf of leg.
Results
Construct a table listing the eight areas of the skin tested. Beside each area listed, present the mean
ascending threshold, mean descending threshold and combined mean threshold.
Discussion
What areas of the skin are most sensitive and which are least sensitive? What biological significance
can you associate with the relative sensitivity of different areas of the skin? How is the differential
touch sensitivity of various parts of the skin associated with behavior?

3700 Sagamore Parkway North . PO Box 5729 . Lafayette, IN 47903 USA . Ph: 765-423-1505
Lafayette Instrument Von Frey Aesthesiometer
3700 Sagamore Parkway North
P.O. Box 5729 • Lafayette, IN 47903 USA
Tel: [phone] • 800.428.7545
Fax: [phone]
E-mail: [email protected]
www.lafayetteinstrument.com
Lafayette Instrument Von Frey Aesthesiometer
Model 16013 User’s Manual
Ordering Information:
All phone orders must be accompanied by a hard copy of
your order. All must include the following information:
1) Complete billing and shipping addresses
2) Name and department of end user
3) Model number and description of desired item(s)
4) Quantity of each item desired
5) Purchase order number or method of payment
6) Telephone number
DOMESTIC TERMS
There is a $50 minimum order. Open accounts can be extended
to most recognized educational institutions, hospitals and
government agencies. Net amount due 30 days from the date
of shipment. Enclose payment with the order; charge with
VISA, MasterCard; or pay COD. We must
have a hard copy of your order by mail or fax. Students,
individuals and private companies may call for a credit
application.
INTERNATIONAL PAYMENT INFORMATION
There is a $50 minimum order. Payment must be made in
advance by: draft drawn on a major US bank; wire transfer to
our account; charge with VISA, MasterCard;
or confirmed irrevocable letter of credit. Proforma
invoices will be provided upon request.
RETURNS
Equipment may not be returned without first receiving a Return
Goods Authorization Number (RGA).
When returning equipment for service, please call Lafayette
Instrument to receive a RGA number. Your RGA number will
be good for 30 days. Address the shipment to: Lafayette
Instrument Company, 3700 Sagamore Parkway North,
Lafayette, IN 47904, U.S.A. Shipments cannot be received at
the PO Box. The items should be packed well, insured for full
value, and returned along with a cover letter explaining the
malfunction. Please also state the name of the Lafayette
Instrument representative authorizing the return. An estimate
of repair will be given prior to completion ONLY if requested
in your enclosed cover letter. We must have a hard copy of
your purchase order by mail or fax, or repair work cannot
commence.
WARRANTY
Lafayette Instrument guarantees its equipment against all defects
in materials and workmanship to the ORIGINAL PURCHASER
for a period of one (1) year from the date of shipment, unless
otherwise stated. During this period, Lafayette Instrument will
repair or replace, at its option, any equipment found to be
defective in materials or workmanship. If a problem arises,
please contact our office for prior authorization before returning
the item. This warranty does not extend to damaged equipment
resulting from alteration, misuse, negligence or abuse, normal
wear or accident. In no event shall Lafayette Instrument be
liable for incidental or consequential damages. There are no
implied warranties or merchantability of fitness for a particular
use, or of any other nature. Warranty period for repairs or
used equipment purchased from Lafayette Instrument is 90 days.
DAMAGED GOODS
Damaged equipment should not be returned to Lafayette
Instrument prior to thorough inspection.
When a shipment arrives damaged, note damage on delivery
bill and have the driver sign it to acknowledge the damage.
Contact the delivery service, and they will file an insurance
claim. When damage is not detected at the time of delivery,
contact the carrier and request an inspection within 10 days of
the original delivery. Please call the Lafayette Instrument
Customer Service Department for a return authorization for
repair or replacement of the damaged merchandise.
Lafayette Instrument Co. Europe
4 Park Road, Sileby,
Loughborough, Leics., LE12 7TJ. UK.
Tel: [phone]
Fax: [phone]
E-mail: [email protected]