Title:
【発明の名称】手術器具及び組立体
Document Type and Number:
Japanese Patent JP2672674
Kind Code:
B2
Abstract:
A surgical instrument for use in forming a tracheostomy comprises a needle with a sharply pointed angled tip joined at its rear end to plastics hub. The length of the needle from the hub is greater than the thickness of neck tissue but less than the distance between the skin surface and the anterior wall of the trachea. The hub has a laterally extending face which has an area at least fifty times the cross sectional area of the needle. Two parallel walls have stepped edges which provide a gripping region for the hub, enabling it to be gripped between finger and thumb. A tapered recess in the hub receives the nose of a syringe which provides a loss of resistance device so that the plunger can be displaced along the barrel when the tip of the needle enters the trachea.
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Inventors:
Graham George Leicester
Application Number:
JP27878089A
Publication Date:
November 05, 1997
Filing Date:
October 27, 1989
Export Citation:
Assignee:
Smiths Industries Public Limited Company
International Classes:
A61B17/34; A61M16/04; (IPC1-7): A61B17/34; A61M16/04
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)