GB781511A - An improved surgical drill - Google Patents
An improved surgical drillInfo
- 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
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.
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE228577C (en) * | ||||
US2525669A (en) * | 1947-07-25 | 1950-10-10 | Hainault Marcel | Automatic trepans |
FR950126A (en) * | 1947-07-25 | 1949-09-19 | Improvements to automatic trephines for perforating the cranial vault |
-
1954
- 1954-03-02 FR FR1094174D patent/FR1094174A/en not_active Expired
-
1955
- 1955-02-28 GB GB5878/55A patent/GB781511A/en not_active Expired
- 1955-03-02 DE DEH23173A patent/DE1051457B/en active Pending
Cited By (2)
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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