US1124285A

US1124285A - Device for withdrawing blood from the body.

Info

Publication number: US1124285A
Application number: US70020212A
Authority: US
Inventors: Philip V Brown
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-05-28
Filing date: 1912-05-28
Publication date: 1915-01-12
Anticipated expiration: 1932-01-12

Description

. BROWN.

DEVICE FOB. WITHDRAWING BLOOD FROM THE BODY.

APPLICATION FILED MAY 28,1912.

5 IW@ WI'OZ ma MEW QH@ 1121 weer To all 'whom it moyconccm itknownthat LPHILIP V. BROWN, a citia'en of. the United States, residing at New. York, Ain themeunty of NewYork and State of New `York, have invented new and useful-improvements in Devices for With drawing v:Blood from the Body, of which the following is a specification. v

My invention relates to the; withdrawal of samples of blood from the body for tests and consists .ina simple device whereby this may be done conveniently and the sample then conveniently transportedif necessary, an indeiinitedistance to the laboratory.

.lhe essentialy features of thedevice are a closed .glass tube or receptacle of any convenient shape, within which a vacuum has been produced, a hypodermic needle and a iuitable tubular connectinggg1 means, preferv 'f-lcnible, between lthe yreceptacles, and

must be provided wherenicr den be means and the interior .be after the needle has been rai i., herewith ll have illuse and desirable :form of device ny invention. n hipires i and 2 are longitudinal sections respectively before and after said communication has been established. Fig. 3 shows a slightly modilied form of receptacle.

the 'rigores l indicates the ,glass recepen bod tacle iior the blood, which may be merely a test-tube as indicated. A vacuum is created in this receptacle by any usual means and then closed either by sealing the end at Qas shown in Fig. 3 or by inserting an airtight rubber cork 3 provided with the short glass tube or tip 4, whose end 5 is sealed in a gas llame after the vacuum has been established. This end should be slightly elongated so that it may be broken to make connection between the vein and the receptacle after the needle has been inserted, as indicated in Fig. 2, whereby the blood is drawn from the body into the receptacle.

6 is the connecting means, preferably a rubber tube fitted over the closed end of the top 4, as shown in the figures and carryingr in its other end the needle 7.

When the sample has been drawn into the receptacle, the rubber tube may be closed air tight byl means of a suitable clamp 8, but l much prefer to seal the tip at about 's m v. shown, on

"i aten. Patenten aan.' ia, este. application' inea mayas, 1912. eel-1am. mazda'.

test. Heretofore blood tests have been in'- convenient and dicultfor ithas been necessary to bring `the patient to the laboratory Where the expert could take the blood sample.

ln Fig. l is indicated at 10 ammonium oxyflate for preventing coagulation, where that is necessary, .or some suitable culture medium may be deposited in lglass tube, but generally speaking the latter is not done for the Vcnltnre is: mad-e fat the liaibcratori?.j.`E pieter the form of tube shown in l and 2, closed by a rubber coi-lr, for this may f dy the old method there be cleaned easily. was danger ci contamination; the blood was withdrawn by a syringe and was deposited in the various media at the bedside.l All of which was complicated and inconvenient, often frightening' the patient andthose implements were diiicult to manipulate and to transport. nly a pathologist could practise those old methods; evidently they were almost impossible for the country physician, whereas with my device the blood can easily be Withdrawn by any physician. This device is always ready .and convenient and may be used, not only for blood tests, but to draw liquids from any part of the body.

Having?,l described my invention, l claim:

1. A simple, compact device for extracting blood from the body, comprising a small receptacle having a vacuum produced therein and provided with a single opening, a

plug fitted thereto and having' also a single Sti dbb

a receptacle having a vacuum produced therein and provided with la glass neck adapted for the attachment of a connection from a hypodermic needle, said neck having an elongated weakened seal portion to be inclosed within the connection and adapted to be broken therein without exterior exposure.l

3. A simple, portable device for extracting blood from the body and temporarily retaining the blood, comprising a small, glass receptacle having a single opening only, the same being the mouth of the receptacle, a plug fitted to said opening, `said plug having a single perforation only eX- tending therethrough and adapted to connect the interior of the receptacle with the Iexterior, a hypodermic needle, a tubular connection between the needle and the perforation forming a continuous channel from the needle to the interior of the receptacle, means initially to close said channel, and' then permitting the same to be opened whenv the needle hasbeen inserted, and means to close the same when the blood has been withdrawn.

4. A device of the character described consistlng of a receptacle having a vacuum produced therein, said receptacle having a single open end, a stopper fitted to said end, a single glass inlet tube carried by the stopper, a fused seal portion for said tube, a hypodermic needle and a flexible connection therefrom to the tube arranged to inclose .the fused seal portion to permit breaking of the seal therein without exterior exposure. v c

5. A device ofthe character described consisting of a receptacle having a vacuum produced therein, said receptacle having an open end, a stopper fitted to said end, a glass inlet tube extended through said stopper, a fused seal portion for said tube, a

PHILIP V. BROWN. Witnesses R. W. SPECHT, O'rro M. GABLER.