US11982A - Mary ann loomis - Google Patents

Description

UNTTED sTATEs PATENT oEEIoE.

JOSEPH G. LOOMIS, OF PHILADELPHIA, PENNSYLVANIA; MARY ANN LOOMIS, EXECUTRIX OF SAID JOSEPH G. LOOMIS, DEGEASED, ASSIGNOR TO W. A. GARDINER.

SURGICAL FORCEPS.

Speccaton of Letters Patent No. 11,982, dated November 21, 1854'.

To all whom t may Concern.'

Be it known that JOSEPH G. LooMIs, late of the city of Philadelphia and State of Pennsylvania, has invented a new and useful Improvement upon the Surgical Forceps, called the Ovum Forceps, and do hereby declare that the following is a full, clear, and exact description of the construction A and operation of the same, reference being had to the annexed drawings, making a part of this specification.

The nature of my invention consists of a rotary joint, by which one blade of the forceps is capable of making a partial revolution within the other blade, in order to bring the convexity of the scoop of one blade into the concavity of the scoop of the other blade (like one spoon laid into another,) and thus to facilitate the introduction of the forceps during an operation.

Figure 6, represents the ovum forceps in the position in which it is introduced; Fig. 7 the instrument at a partial sweep; Fig. 8, the instrument open, extended and in a position to grasp its object; Fig. 9, exposes the joint with the upper half of the nut removed; Fig. l0, represents a part of the stationary blade A, the full nut and joint with the groove in which the rotary blade rests when the instrument is closed upon` an object.

In constructing the joint of the forceps, I make the blade A wit-h a slotinto which twowashers a, a, are inserted, and then held by screws l), 6,-each of these washers has a semicylindrical groove to receive the contracted central portion of the blade B, and one of them has two holes o, c, to receive corresponding studs upon the other.-Blade B carries a stud d, fitting the two notches f, of the washers; and thus B is capable of a partial revolution in relation to blade A, the motion being arrested by stud al.

For the extraction or removal of the ovum or other object the forceps is introduced as represented in Fig. 6, thescoop and blade B rest-ing in the scoop and groove of the blade A. The blade B is then rotated, as

in Fig. 7, and its grasp ifnecessary eX- tended by the scissors movement to secure the object, as represented in Fig. S.'

This forceps with my improvements will be useful in removing the ovum between the third and sixth months of gestation, in removing detachable placenta polypus and other tumors that have become detached by ligation and are too large to be removed without forceps. Also for removing har dened foeces from an inactive rectum when the scoop would otherwise be used, and in other cases of forceps where the passage of both blades upon the same side is necessary or important.

I do not claim the invention of the surgical forceps, but

p J. G. LOOMIS. Witnesses c J As. H. CARR, E. B. BOILEAU,

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