GB781511A - An improved surgical drill - Google Patents

An improved surgical drill

Info

Publication number
GB781511A
GB781511A GB5878/55A GB587855A GB781511A GB 781511 A GB781511 A GB 781511A GB 5878/55 A GB5878/55 A GB 5878/55A GB 587855 A GB587855 A GB 587855A GB 781511 A GB781511 A GB 781511A
Authority
GB
United Kingdom
Prior art keywords
rod
lower member
bit
tubular
rotary bit
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.)
Expired
Application number
GB5878/55A
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
Application filed by Individual filed Critical Individual
Publication of GB781511A publication Critical patent/GB781511A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1695—Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Neurosurgery (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Drilling And Boring (AREA)

Abstract

781,511. Surgical drills. HAINAULT, M. Feb. 28, 1955 [March 2, 1954], No. 5878/55. Class 81 (2). [Also in Group XXII] A power-driven surgical drill comprises a rod rotated by driving means, a lower member aligned and coaxially rotatable with the rod and slidable towards and away from the rod, co-operating clutch means on adjacent ends of the rod and the lower member, a compression spring urging the rod and the lower member apart, a central rotary bit secured to the lower member, a second tubular bit surrounding the rotary bit, fixed relative to the rod and keyed to the lower member to allow axial displacement of the lower member and the rotary bit within the tubular bit, the working end of the rotary bit projecting, when the clutch means is disengaged beyond the working end of the tubular bit. A rod 10 within the device is rotated by a drive 1 perpendicular to it and which engages a driven pinion 2 keyed to the rod 10. A sleeve 3 secured to the rod 10 is spaced by a spring 5 from a lower member 4 carrying a boring tool 6. Concentric with the member 4, a tubular rotary bit 7 is secured to the member 4 by a pin 8 slidably engaging a straight or helical slot. When the device is applied to the work, pressure on a pushmember 9 causes clutch teeth 11 on the sleeve member 3 to engage corresponding teeth 12 on the member 4 so that rotation is transmitted to the tools 6, 7. When the boring is completed, lack of resistance at the boring tool 6 allows the spring 5 to separate the clutch teeth 11, 12 and rotation of the tools 6, 7 ceases.
GB5878/55A 1954-03-02 1955-02-28 An improved surgical drill Expired GB781511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1094174T 1954-03-02

Publications (1)

Publication Number Publication Date
GB781511A true GB781511A (en) 1957-08-21

Family

ID=9616910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5878/55A Expired GB781511A (en) 1954-03-02 1955-02-28 An improved surgical drill

Country Status (3)

Country Link
DE (1) DE1051457B (en)
FR (1) FR1094174A (en)
GB (1) GB781511A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797497A (en) * 1972-02-28 1974-03-19 Stryker Corp Drill like driving device
DE2943501A1 (en) * 1979-10-27 1981-05-07 Robert Bosch Gmbh, 7000 Stuttgart TOOL HOLDER FOR MACHINE TOOLS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916221C2 (en) * 1979-04-21 1980-10-30 Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen Cranial trepan

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE228577C (en) *
FR950126A (en) * 1947-07-25 1949-09-19 Improvements to automatic trephines for perforating the cranial vault
US2525669A (en) * 1947-07-25 1950-10-10 Hainault Marcel Automatic trepans

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797497A (en) * 1972-02-28 1974-03-19 Stryker Corp Drill like driving device
DE2943501A1 (en) * 1979-10-27 1981-05-07 Robert Bosch Gmbh, 7000 Stuttgart TOOL HOLDER FOR MACHINE TOOLS

Also Published As

Publication number Publication date
DE1051457B (en) 1959-02-26
FR1094174A (en) 1955-05-13

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