US2534990A - Veterinary forceps - Google Patents

Description

Dec 19, 1950 F. D. RANDOLPH 2,534,999

VETERINARY FORCEPS Filed Nov. 21, 1947 /9 l 9 I lureuml Fran ,W Z

A 1/0 may:

Patented Dec. 19, 1950 Ul'lED STATES .NATQENT QFFICE VETERINARY FORGEPS Frank 13. Randolph, Cheyenne, Wye, assignorof one-half to George G. Davis Albin, Wyo.

3 Claims.

This invention relates to improvements in forceps especially adapted for use in veterinary obstetrics and has for its primary object to provide a pair of forceps especially intended and adapted for use in eiiiciently accomplishing the delivery of calves or foals under circumstances where an abnormal presentation prevails, such as where the head is bent to the side, to the back or down between the forelegs.

More particularly, it is an object of the present invention to provide an improved construction of forceps for use in delivering calves or foals having jaws adapted to be applied and secured to the lower jaw of the fetus and so as not to cause injury thereto, in any way, should the calf or foal still be alive, and which will likewise not injure the cow or mare.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawing, illustrating a preferred embodiment of the invention, and wherein:

Figure l is a side elevational view of the instrument;

Figure 2 is an edge elevational view thereof, and

Figure 3 is a cross sectional view taken substantially along a plane as indicated by the line 3-3 of Figure 1.

Referring more specifically to the drawing, the

instrument or forceps in its entirety is designated generally 5 and comprises two members 6 and l of substantially identical construction and which include elongated, substantially straight rod portions 8, which are crossed adjacent their inner i ends and which are pivotally connected in crossed relationship at their points of intersection by a pivot pin 9. The rods 8 which are substantially circular in cross section are flattened, as seen at It in Figures 1 and 2 on their inner, opposed sides from the pivot 9 in one direction to the inner ends of said rods 8 and for a distance in the opposite direction. The flattened inner sides it], at their last mentioned ends, are beveled as seen at H along the remote portions thereof. The outer ends or terminals of the rods 8 are provided with substantially spherical enlargements or stops 12. The portions of the rods 8, between the pivot 9 and enlargements l2, constitute the handle members of the forceps or instrument 5.

The opposite ends of the members 5 and 7! constitute jaws l3 and M, respectively, which are bowed outwardly and which terminate at their free ends in spherical enlargements or heads l5. The jaws l3 and i l are each arcuately shaped and when the handle portions of the rods 8 are disposed in adjacent positions, as seen in full lines in Figure l, the terminals or heads ldof the jaws l3 and M are disposed in substantially opposed, abutting relationship. The curved jaws I3 and [4 when thus disposed in closed positions, combine to form an elongated loop, disposed substantially transversely to the longitudinal axis of the instrument 5.

An elongated loop it has its end portions slidablyengaging the rods 8, between the pivot 9 and the enlargements l2, and the intermediate portion of the loop [5 is drawntogether, as seen in Figure 3, and is welded or otherwise secured at I! to the shank end of an elongated shank l8 havinganeye H9 at its outer end and remote to the pivot 9 and whichis preferably formed from a relativel yheavystrandof wire which is bent back upon itself to form the eye Hi, the end portions of which are disposed in abutting, substantially parallel relationship to provide the shank 18. The end portions of the loop it which slidably engage the handle portions of the rods 8 engage sufficiently close thereabout so as to be prevented from moving out of engagement therewith by the enlargements l2 which form stops to limit the movement of the loop it from its dotted line to its full line position of Figure 1. The loop l6 and connected eye l9 combine to form a closing means for the jaws l3 and M of the instrument 5 when said loop is moved to its full line position of Figure 1 or its position of Figure 2.

As previously stated, the jaws l3 and it are employed to enga e the lower jaw of a calf or foal to assist in delivery where an abnormal presentation prevails, and the lower jaw of the fetus will be engaged between the heads it of the jaws l3 and Hi. A cord or other flexible member, not shown, is attached to the eye is and after the jaws of the instrument 5 have been inserted and engaged with the lower jaw of the calf or foal, an outward pull exerted on the loop it through the eye IE? will cause it to move from its dotted line toward its full line position of Figure 1 to cause the heads if of the jaws l3 and i i to grip the lower jaw of the fetus and so that the instrument will then guide the head, accomplishing the delivery. Obviously, the instrument is initially inserted in the closed position, as seen i full lines in Figure l, and the jaws are subsequently opened to engage lower jaw of the fetus.

Various modifications and changes are contemplated and may obviously be resorted to, without departing from the spirit or scope of the in- 3 vention as hereinafter defined by the appended claims.

I claim as my invention:

1. In a veterinary instrument of the character described, a pair of forcep members each including an elongated, substantially Straight rod-like member having an arcuate, outwardly bowed jaw at one end thereof, said rod-like members being pivotally connected in crossed relationship adjacent the jaws, the ends of the rod-like members, a

extending from the pivot away from said jaws, forming handle portions of the instrument, and a closing member having enlarged end portions slidably engaging said handle portions for closing the jaws when moved toward the extremities of the handle portions, said closing member having a restricted intermediate portion for engaging adjacent sides of the handle portions for opening the jaws when the closing member is moved toward the pivot.

2. An instrument of the character described comprising a pair of substantially corresponding forcep members, each including n elongated rodlike portion forming one end thereof, and an outwardly bowed, arcuate portion forming a jaw at the opposite end thereof, said rod-like portions being disposed in crossed relationship and being pivotally connected at a point adjacent the jaws, the ends of said rod-like portions extending from the pivot and away from the jaws forming handle portions swingable relatively to one another for moving the jaws to opened or closed positions, the free ends of said jaws being disposed substantially in opposed abutting relationship when in a closed position, and a closing member slidably engaging the handle portions of the forcep members and movable in a direction outwardly thereof for closing the jaws and inwardly thereof for opening the jaws.

3. An instrument of the character described comprising a pair of substantially corresponding forcep members, each including an elongated rodlike portion forming one end thereof, and an outwardly bowed, arcuate portion forming a jaw at the opposite end thereof, said rod-like portions being disposed in crossed relationship and being pivotally connected at a point adjacent the jaws, the ends of said rod-like portions extending from the pivot and away from the jaws forming handle portions swingable relatively to one another for moving the jaws to opened or closed positions, the free ends of said jaws being disposed substantially in opposed abutting relationship when in a closed position, and a closing member slidably engaging the handle portions of the forcep members and movable in a direction outwardly thereof for closing the jaws, said closing member comprising an elongated loop, the end portions of which slidably engage said handle members, and having an eye member projecting from the intermediate portion thereof and in a direction away from the pivot and upon which a pull is adapted to be exerted for urging said jaws to their closed positions and for retaining the jaws in closed positions while a pull is exerted on the instrument.

FRANK D. RANDOLPH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 828,146 Somers Aug. '7, 1906 1,396,427 Hatch Nov. 8, 1921 1,510,066 Madland Sept. 30, 1924

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