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ASTM

ASTM F340-71(1993)

(Specification)

Specification for Pilot-Type Medical Countersinks (Withdrawn 1997)

Specification for Pilot-Type Medical Countersinks (Withdrawn 1997)

SCOPE
1.1 This specification covers an acceptable countersink instrument intended to countersink a drilled pilot hole in bone to receive the tapered head of a medical bone screw. The specific design covered by this specification incorporates a pilot tip of suitable diameter to engage the pilot hole and a countersink contour for medical bone screws conforming to Specification F543.  
1.2 The values stated in inch-pound units are to be regarded as the standard.

General Information

Status
Withdrawn
Publication Date
31-Dec-1992
Withdrawal Date
09-Nov-1997
ICS
11.040.30 - Surgical instruments and materials
Technical Committee
F04 - Medical and Surgical Materials and Devices
Drafting Committee
F04.21 - Osteosynthesis
Current Stage
Ref Project

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ASTM F340-71(1993) - Specification for Pilot-Type Medical Countersinks (Withdrawn 1997)ASTM F340-71(1993) - Specification for Pilot-Type Medical Countersinks (Withdrawn 1997)
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ASTM F340-71(1993) - Specification for Pilot-Type Medical Countersinks (Withdrawn 1997)
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: F 340 – 71 (Reapproved 1993)
Standard Specification for
Pilot-Type Medical Countersinks
This standard is issued under the fixed designation F 340; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
e NOTE—Section 6 was added editorially May 1993.
1. Scope determines will meet the functional requirements of these
countersinks.
1.1 This specification covers an acceptable countersink
instrument intended to countersink a drilled pilot hole in bone
4. Dimensions
to receive the tapered head of a medical bone screw. The
4.1 Medical countersinks conforming to this specification
specific design covered by this specification incorporates a
shall be fabricated in accordance with the dimensions illus-
pilot tip of suitable diameter to engage the pilot hole and a
trated in Fig. 1.
countersink contour for medical bone screws conforming to
Specification F 543.
5. Tolerances
1.2 The values stated in inch-pound units are to be regarded
5.1 Medical countersinks conforming to this specification
as the standard.
shall be fabricated in accordance with the tolerances indicated
for specific dimensions illustrated in Fig. 1. Where tolerances
2. Referenced Documents
are not indicated for dimensions, the following tolerances shall
2.1 ASTM Standards:
2 apply:
F 543 Specification for Cortical Bone Screws
Fractional dimensions 6 ⁄64 in. (0.40 mm)
Decimal dimensions 60.005 in. (0.13 mm)
3. Material
Angles 62°
3.1 Medical countersinks conforming to this specification Metric dimensions 60.5 mm (0.019 in.)
shall be fabricated from such material as the manufacturer
6. Keywords
6.1 countersinks; instruments; orthopaedic medical devic
...

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