GB593213A - Improvements in and relating to instruments for obtaining access to and viewing cavities, particularly cavities of the human body - Google Patents

Improvements in and relating to instruments for obtaining access to and viewing cavities, particularly cavities of the human body

Info

Publication number
GB593213A
GB593213A GB1599945A GB1599945A GB593213A GB 593213 A GB593213 A GB 593213A GB 1599945 A GB1599945 A GB 1599945A GB 1599945 A GB1599945 A GB 1599945A GB 593213 A GB593213 A GB 593213A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
end
lenses
mounted
tube
spring
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
GB1599945A
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.)
E R Watts & Son Ltd
GUENTHER LOECK
Original Assignee
E R Watts & Son Ltd
GUENTHER LOECK
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/002Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor having rod-lens arrangements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661Endoscope light sources
    • A61B1/0676Endoscope light sources at distal tip of an endoscope

Abstract

593,213. Gastroscopes &c. WATTS & SON, Ltd., E. R., and LOECK, G. June 22, 1945, No. 15999. [Class 81 (ii)] In a gastroscope &c. of the kind comprising a flexible tube containing a succession of lens components, each mounted in its individual cell, one end of the tube is mounted in a socket incorporated in a rigid tubular end piece of larger diameter than the flexible tube and carrying one or more lenses of larger diameter than that of the lenses in the flexible tube, an enlarged image being transmitted to the eye piece also incorporated in the rigid end piece. As shown, the tube comprises a coil spring 11, the lenses 8, 8a being mounted in two-part members 9, 9a separated by spacers 10. The spring is fitted with a socket 12 carrying an extension piece 13, in which are positioned window 7, prism 7a and lamp 2, and which is, formed for the attachment of a sponge 14. The 'other end of the spring fits into ring 15 on which is screwed a coupling sleeve 16 carrying a tube 3 containing the larger diameter lens or lenses 4, and eye piece 5. The end of this sleeve and a tubular plug 17 secure the end portion of an outer rubber cover 18. The spring is provided with a rubber cover 19, e.g., by dipping, and the space between the two covers serves for the passage of air blown in by an air bulb attached to nipple 21. The air escapes at the other end through an aperture in the outer cover. A lead 20 for the lamp is wound spirally around cover 19, terminating in connector 22 mounted on ring 23 for rotation about the main axis of the instrument. Specification 454,713, [Group XX], is referred to.
GB1599945A 1945-06-22 Improvements in and relating to instruments for obtaining access to and viewing cavities, particularly cavities of the human body Expired GB593213A (en)

Publications (1)

Publication Number Publication Date
GB593213A true true GB593213A (en) 1947-10-10

Family

ID=1731983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1599945A Expired GB593213A (en) 1945-06-22 Improvements in and relating to instruments for obtaining access to and viewing cavities, particularly cavities of the human body

Country Status (1)

Country Link
GB (1) GB593213A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057345A (en) * 1960-05-16 1962-10-09 Bausch & Lomb Duodenoscope
US3100482A (en) * 1961-04-14 1963-08-13 American Cystoscope Makers Inc Flexible optical surgical instrument
DE1241878B (en) * 1962-05-15 1967-06-08 Marie G R P Device for guiding electromagnetic waves in the millimeter range and below, or for guiding optical waves
FR2390148A1 (en) * 1977-05-09 1978-12-08 American Hospital Supply Corp modular assembly of cylindrical lens and process for its manufacturing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057345A (en) * 1960-05-16 1962-10-09 Bausch & Lomb Duodenoscope
US3100482A (en) * 1961-04-14 1963-08-13 American Cystoscope Makers Inc Flexible optical surgical instrument
DE1241878B (en) * 1962-05-15 1967-06-08 Marie G R P Device for guiding electromagnetic waves in the millimeter range and below, or for guiding optical waves
FR2390148A1 (en) * 1977-05-09 1978-12-08 American Hospital Supply Corp modular assembly of cylindrical lens and process for its manufacturing

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