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Publication numberUS559122 A
Publication typeGrant
Publication dateApr 28, 1896
Filing dateAug 21, 1895
Publication numberUS 559122 A, US 559122A, US-A-559122, US559122 A, US559122A
InventorsJohn W. Daily
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Endoscopic instrument
US 559122 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)





SPECIFICATION forming part of Letters Patent No. 559,122, datedApril 28, 1896.

Application filed August 21, 1895. Serial No. 560,078. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN W. DAILY, of Bos- I electric lamp of any suitable size and shape desired, varying in size and length of tube, as may be required, and in the details of construction hereinafter more fully described, and specifically set forth in the annexed claim. To the posterior extremity of this lamp-carrying tube and integral with it is a thin bif urcated or slotted metal plate of any suitable length desired. The said plate is preferably constructed to project at right angles with the tube, but may be arranged at any angle or in any position best adapted to the convenient attachment of the tube carrying lamp to any of the many and various instruments to which it may be applied and for which it may be more especially designed.

In the drawings hereto attached, which form a part of this specification, and to which reference is made, Figure 1 represents a vertical section of a female speculum, showing a lamp-tube attached to the posterior extremity thereof by means of a slotted plate and thumbscrew, whereby the lamp-tube and inclosed electric lamp may be detached and removed therefrom, as desired. sectional perspective view of the tube inclosing an incandescent electric lamp detached and removed from the speculum, so as to permit the speculum or instrument, after being used, to be cleansed more conveniently, the tube and lamp being drawn on an enlarged scale.

A represents a female speculum or any other instrument adapted for examining cavities of the human body, illuminated by means of an electric light applied as shown or otherwise in the instrument when inclosed within a tube.

Fig. 2 represents a- B represents a metal tube formed of any shape and size desired, the inward end there of being provided with a removable cap provided with a transparent disk 0 of mica or other desired material, so as to permit the light of the incandescent electric lamp E to shine provided with a hard-rubber insulator-plug F, through which pass the electric wires H,

connected with the small incandescent electric lamp E in the usual mannerheretofore employed, wherein the terminals of the wires are connected to the opposite poles or elements of a common galvanic battery. Now in order to permit the said lamp and tube to be temporarily connected and held in position within the speculum or other instrument, and when desired to be quickly detached and removed, I provide the said metal tube B, near the outward end thereof, with a thin sheet-metal plate K, projecting downward at aright angle thereto and having the lower end portion bifurcated or provided with a vertical slot N, adapted to pass over the threaded thumb-screwP, provided in the handle portion L of the said speculum, so as to contact with thepron gs of the said projecting plate K when turned or screwed inwardly, and thereby hold the said lamp-tube firmly in position while being used, as shown in Fig. 1, clamped to the said handle L.

It will be seen and understood that the said lamp-carrying tube may be detached and removed from the instrument when desired by simply turning the said thumb-screw, so as to release the said attaching-plate held in contact with said handle, asshown and described.

Having thus described my invention, what I claim is An endoscopic instrument having a separate, or independent tube inclosin g therein an incandescent electric lamp and detachably connected to the instrument by means of a slotted plate and set-screw, as shown and described, as and for the purposes set forth. JOHN W. DAILY.

Witnesses SYLVENUS .WALKER, HENRY Ho'oenron.

Referenced by
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US2592190 *Aug 27, 1948Apr 8, 1952Nat Electric Instr Company IncIlluminated speculum
US3565061 *Apr 30, 1969Feb 23, 1971Reynolds Verne JFree sliding bivalve vaginal speculum
US3769968 *Nov 22, 1971Nov 6, 1973Blount LSpeculum
US4300541 *Aug 22, 1980Nov 17, 1981Kermit BurginSpeculum lens structure
US5785648 *Oct 9, 1996Jul 28, 1998David Min, M.D., Inc.Speculum
US6394950 *Oct 15, 2001May 28, 2002Sol WeissSurgical instrument
US6830547 *Mar 11, 2002Dec 14, 2004Sol WeissAttachment devices for surgical instruments
US9332898 *Jan 31, 2014May 10, 2016Welch Allyn, Inc.Vaginal speculum apparatus
US20140148653 *Jan 31, 2014May 29, 2014Welch Allyn, Inc.Vaginal speculum apparatus
US20170172404 *Mar 8, 2017Jun 22, 2017Welch Allyn, Inc.Vaginal speculum apparatus
WO2003032821A1 *Sep 27, 2002Apr 24, 2003Sol WeissSurgical instrument