Improvements in gum elastic and flexible catheters and bougies / [Marcus Allen].

  • Allen, Marcus.
Date:
1905
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in gum elastic and flexible catheters and bougies / [Marcus Allen]. Source: Wellcome Collection.

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    N 23,893 A.D. 1904 Date of Application, 4th Nov., 1904 Complete Specification Left, 3rd July, 1905—Accepted, 3rd Aug,, 1905 PROVISIONAL SPECIFICATION. Improvements in Gum Elastic and Flexible Catheters and Bougies. I, Marcus Allen, of 134 Islington, Liverpool, in tlie County of Lancaster, Medical Man (retired); do hereby declare the nature of this invention to be as follows It is a matter of common knowledge to members of the medical profession 5 that gum elastic and flexible catheters and bougies are liable, when in use, to break off at the end, and that the part which thus becomes separated is likely to form the nucleus of a calculus or stone in the bladder, possibly requiring the operation of lithotomy. The object of this invention is to produce a gum elastic or a flexible instru- 10 ment which may be left without any risk in the patient’s urethra, and which will be more durable than the ordinary gum elastic or the flexible instrument, while possessing the safety from breakage of the metal instrument. According to this invention the catheter or bougie is made of gum elastic or of flexible material with a metallic, core. The material used is 15 moulded or otherwise formed or fashioned around or upon the core, which is preferably made of metal wire with a bulb or projection at one end or at both ends. The instruments may thus be reversible in character, and the ends may vary in shape and in size. In both gum elastic and flexible instruments, if only one end of the instru- 20 ment is used the metal at the other end may be fashioned into a top, which, being permanent, will be an improvement on the ordinary bone top which so readily comes away. Dated this 4th day of November 1904. E. W. GOLBY, 25 Patent Agent, 36, Chancery Lane, London. W.C. Agent for the Applicant. COMPLETE SPECIFICATION. Improvements in Gum Elastic and Flexible Catheters and Bougies. 30 I, Marcus Allen, of 134 Islington, Liverpool, in the County of Lancaster, Medical Man (retired); do hereby declare the nature of this invention and in what manner the same is to be performed to be particularly described and ascertained in and by the following statement: It is a matter of common knowledge to members of the medical profession 35 that gum elastic and flexible catheters and bougies are liable, when in use, to [Price 8d.]