US473632A

US473632A - Veterinary impregnator

Info

Publication number: US473632A
Authority: US
Publication date: 1892-04-26
Anticipated expiration: 1909-04-26

Description

(NovModel.)

' C. C. LYFORD.

VETERINARY IMPRBGNATOR. No. 473,632. Patented Apr. 26,1892.

IINiTEn Sterns Pani* union.,

CHARLES O. LYFORD, OF MINNEAPOLIS, MINNESOTA.

VETERINARY IMPREGNATOR.

SPECIFICATION forming part of Letters Patent No. 473,632, dated April 26, 1892. Application led September 18, 1891. Serial No. l1.06160. (No model.)

I'o @ZZ whom t may concern.-

Be itknown that I, CHARLES O. LYFORD, of Minneapolis, in the county of Hennepin and State of Minnesota., have invented certain Improvements in Impregnators for Veterinary Use, of which the following is a specification.

My invention relates to means for use in breeding mares. I-Ieretofore much trouble has been experienced in getting mares into foal, owing to the contraction or displacement of the female parts so as to close the opening through the cervex, thus preventing the passage of the male semen into the uterus when it comes into contact with the female ovum, which must take place before impregnation can result. It has been found by experience that less than fifty per cent. of the attempts at breeding are successful, nearly every mare requiring several services, and notwithstanding repeated services of the stallion many valuable mares remain barren season after season, thereby causing the owner much eX- pense and also great pecuniary loss, owing to his being deprived of colts which would otherwise have been raised. In addition to the loss occasioned by the inability of the mare to conceive is the detrimental sapping of the vitality of the stallion, thus greatly limiting the number of pregnant mares each season.

The object of this invention is to provide means for insuring impregnation; and my invention consists, generally, in the devices hereinafter described, and particularly pointed out in the claims.

My invention will be more readily understood by reference to the accompanying drawings, in which* Figure l is a longitudinal section of a device embodying my invention. Fig. 2 is a similar view of another form of my impregnator. Fig. 3 is a side elevation of a device embodying my invention.

In the drawings, 2 represents the main portion of the device, which is in the form of a tube open at both ends and having a rounded or funnel-shaped opening in its center corresponding to the opening through the tube 2. The tube 2 is provided at its opposite end with the bulb 5, preferably made hollow, so as to make it flexible and capable of `being compressed while being inserted, while the tube itself is possessed of considerable rigidity. The disk 8 is preferably in the form of a hollow ring surrounding the open end of the tube 2. This ring is tlexible,but possesses considerable spring, which makes it easily put in place and causes it to closely engage the surrounding vparts when the device is in use. Thishollowringforrusacushion, against which the end of the male organ is brought when the device is in use, thus preventing the device-from interfering with the natural action of the organs when it is being used. The hollow bulb at the end of the tube may be of any preferred form or size, as shown in Figs. 1 and 2.

As above spoken of, the entire device is preferably formed of rubber, so as to be flexible and at the same time possess sufficient rigidity to prevent its being collapsed when in position.

The funnel shape of the opening in the disk end of the device renders the same an assistance when in use in creating a vacuum in the uterus by the action of the male organ against the disk as a valve, thereby causing a suction through the tube and into the uterus. After copulation the impregnator should be immediately removed to prevent straining.

rIlhe principal advantages of the impregnator are ease of insertion, non-compressibility, and the advantage set forth in the preceding paragraph.

lVhen the device is used, it is carried in through the vagina and the end of the tube pushed through the cervex or neck of the uterus, the same being first somewhat dilated to make the insertion of the tube easy. After being forced through the neck of the womb the disk comes in contact with the posterior end or vaginal surface of the os uteri. The tube is firmly held in position by the closing of the neck of the womb about the portion 4. of the tube. Y

Having thus described my invention, I claim as new, and desire to secure by Letters Patentl. The herein-described veterinary instrument, consisting of a tube 2, provided with a flexible bulb at one end thereof and with a hollow flexible ring surrounding its opposite end. i

2. The herein-described veterinary instru- IOO ment, consisting of the tube 2, having a holend, andaflexible ring surrounding said fun- 1o 10W iiexible ring surrounding one end thereof. nel-shaped end,'substant1a.lly as described.

3. The herein-described Veterinary instruln testimony whereof I have hereunto set ment, consisting of the tube 2, provided withv my hand this 8th day of September, 1891. 5- a bulb or rounded end and with a hollow flexi- CHARLES C. LYFORD. ble rlng surrounding its opposite end.

4. The herein-described veterinary instru- In presence Ofment, consisting of the tube 2, having a exi- F. S. LYON, ble bulb at one end, afunnel-shaped opposite A. C. PAUL.