US1703050A - Veterinary obstetrical forceps - Google Patents

Description

Feb. 19, 1929. 1,703,050

H. ZINS VETERINARY OBSTETRI CAL FORCBPS Filed Nov. 1927 ping from the luinds. vided at-its front end with an upwardly ex Patented Feb. -19, 1929; i

UNITEDJSTATES PATENT oFFICE,

I-IUBERT ZINS,VOF WABASSO, MINNEsoTii.

VETERINARY OBSTETRICAL EoEoEPs,

Application filed November 3, 1927. Serial No. 230,814.

This invention relates to an obstetrical forceps adapted to be usedfor the purpose of delivering a pig which duet-o its size-is held against natural delivery by the pelvic bone of the sow, and has for one of itsob:-

jects to provideanovel, simple and highly ei'iicientinstrument of thischaracter which shall be so constructed as to permit it to be readily insertedinto the vagina and engaged with the jaw of the pig.

With the foregoing-and other objects View, the nature'of which will appear as the description proceeds, the invention consists alane indicated b the line 33 of Fi ure-1.

The forceps comprise elongated straight jaws land 2 which have their rear endportions reversely bent and connected by a pivot 3. Elongated handles at and 5 extend rearwardly from the jaws 1 and 2, respectively, and they are provided with hooked rear terminals 6 and 7, respectively, which. are adapted to prevent the handles from slip- The jaw 1 is protei'uling curved beak 8. The aw l and its beak 8 are circular incross section, the free end of the beak is roi'indcd, and. the jaw gradually tapers 1n the direction of the beak.

The jaw 2 is provided at, its front endwith' a flat beak 9 which extends directly forward therefrom to a point forwardly beyond the beak 8. The beak 9 iselliptical in contour, and the edge thereof is rounded. The jaw 2 is circular in cross section and tapers gradually in the direction of the beak 9; r

In practice, when the mouth ofthb pig, which due to its size cannot pass the pelvic bone of the sow, can be felt with one finger, the forceps are inserted into the Vagina with the jaws 1 and 2 in closed relation and with the flat beak 9 in contact with the finger, which is used to guide the beak 9 into the mouth of the pig until the. curved beak side elevation of the Figure 3 is a sectional View taken on the 8 'reachesthe lower jaw. The forceps are then manipulated to slightly open-the jaws 1 and 2, and they are then pushed further intothe vagina untilthe curved beak 8' reaches the bifurcation of the lower jaw. Theforceps are then closed to grip the lower aw and thereafter traction is applied to effect the delivery of the pig.

As the jaws 1 and 2 are of considerable length, and'as the flat beak 9 extends for-- Wardly beyond the curved beak 8, the jaw of thepig maybe engaged with comparatively little effort and in a comparatively short tnne. V 1 and 2 permit them to be brought into c0mparatively close relation when they are deep in the'vagina, and the extension of the flat beak 9 beyond the curved beak 8 permits the fiat beak to act as a guide in placing the flat beak into the mouth of the pig. As the jaws 1 and 2 and the curved beak 8 are round Furthermore, the length of the jaws in cross section, as the free end of the curved beak is rounded, and as the edges of the flat beak 9 are rounded, it is impossible to injure the sow or pig during the insertion of the forceps into the vagina and during their engagement with the mouth. lVhen necessary to use other instruments before the finaldelivery of the pig, the forceps may be held in place, witlrthe jaws ltand 2 on gaging the mouth of the pig, by means of a string or rubber band 10 applied to the ter urinals 6 and 7, as shown in Figure 1. The forceps are also adapted, as will be ap iiaront, to beused for the un-pose of delivering the fetus of dogs, cats and other small animals.

Itfshouldbe understood that the drawing is merely illustrative and does not pretend :to give exactproportions. Furthern'mre, the said drawing is illustrativeof a preferred construction, it being my expectation that various changes and modification may be 'm'ade without departing from the spirit and scope of myinvention.

What is claimed is 1. A forceps comprising a pair of elongated straight jaws, Jneans pivotally connecting the jaws, handles carried by the j aws,

acurved beak Carried by the forward end of one of the jaws and extending therefrom inthe direction of the other jaw, and a flat beakextending directly forward from the contour carried by the long jaw and extending forwardly therefrom to a point beyond the curved beak, the jaws and curved beak being circular in cross section, and the free end of theecurved' beak end the edge of'the flat beak being roundecb In testimony whereof I aflix my signature.

HUBERT ZINS.

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