CA2158854A1 - An apparatus for testing the passive fit of screw retained structures - Google Patents

An apparatus for testing the passive fit of screw retained structures

Info

Publication number
CA2158854A1
CA2158854A1 CA002158854A CA2158854A CA2158854A1 CA 2158854 A1 CA2158854 A1 CA 2158854A1 CA 002158854 A CA002158854 A CA 002158854A CA 2158854 A CA2158854 A CA 2158854A CA 2158854 A1 CA2158854 A1 CA 2158854A1
Authority
CA
Canada
Prior art keywords
testing
structures
fit
screw retained
passive fit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002158854A
Other languages
French (fr)
Other versions
CA2158854C (en
Inventor
Andrew Joseph Stanley Dawood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9401332A external-priority patent/GB9401332D0/en
Application filed by Individual filed Critical Individual
Publication of CA2158854A1 publication Critical patent/CA2158854A1/en
Application granted granted Critical
Publication of CA2158854C publication Critical patent/CA2158854C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/185—Drives or transmissions
    • A61C1/186—Drives or transmissions with torque adjusting or limiting means

Abstract

A passivity indicating apparatus for use where structures are to be joined by threaded components and a passive, precise, fit is sought, comprising means (9) for indicating the precision of fit of structures that are to be joined which means is responsive to a change in the resistance to rotation of the retention screw (4) or other threaded rotary component.
CA002158854A 1994-01-25 1995-01-25 An apparatus for testing the passive fit of screw retained structures Expired - Fee Related CA2158854C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9401332.3 1994-01-25
GB9401332A GB9401332D0 (en) 1994-01-25 1994-01-25 An apparatus for testing the passive fit of screw retained structures
PCT/IB1995/000055 WO1995020146A1 (en) 1994-01-25 1995-01-25 An apparatus for testing the passive fit of screw retained structures

Publications (2)

Publication Number Publication Date
CA2158854A1 true CA2158854A1 (en) 1995-07-27
CA2158854C CA2158854C (en) 2007-04-10

Family

ID=38007141

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002158854A Expired - Fee Related CA2158854C (en) 1994-01-25 1995-01-25 An apparatus for testing the passive fit of screw retained structures

Country Status (1)

Country Link
CA (1) CA2158854C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113349979A (en) * 2015-07-20 2021-09-07 W和H牙科产品比莫斯有限公司 Medical device, in particular dental device, for determining bone quality

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113349979A (en) * 2015-07-20 2021-09-07 W和H牙科产品比莫斯有限公司 Medical device, in particular dental device, for determining bone quality
CN113349979B (en) * 2015-07-20 2022-06-14 W和H牙科产品比莫斯有限公司 Medical device, in particular dental device, for determining bone quality

Also Published As

Publication number Publication date
CA2158854C (en) 2007-04-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed