US1458958A - Bleeding apparatus - Google Patents

Description

June 19, 1923.

1,458,958 F. SCHNEIDER BLEEDING APPARATUS Filed Oct. 31 1921 WIN/E8858 llW/E/VTOH G /N67051:" lv fm s By A TTOR/VEYS Patented June 19, i

=",BLEEDLNGAPPABIATUS. l

4 ,u ification fi daact ter 21, 1921. Seria1No.511,7 18. y

I it mag concern; H v

F. Sc trr nnmn Be it knownthatl, RALri-i:

.a citizen,of-the rUnitedlstates, angl a .resi- I "dent of 'IerseyCity, in the r;;ounty' -ot Hud-Q 5 and State of ew Jersey, have invented ne arse lm q le in A ara us, 19 th he jfO QW Q is )3 u lw lee a exact description. v v

This invention relates to improvements in bleeding apparatus which is; commonly used; for extracting blood from the-body for the purpose of making blood tests.

The common practice heretofore has been to use a vacuum tube with a. relatively long neck and a hypodermic needle. T he necko't the tube and the needle have vbeencoupled by a short length of r'ubber'hose. After the needle has been inserted in a blood vessel it has been customary to use a pair of pincers or other suitable tool to squeezethe rubber tubing and break the neck of the vacuum tube, thusfcreating a suction to draw blood. through the needle into the'tub'e.

With the old form of apparatus it has practically been impossible to manually break the neck of the vacuum tube after the insertion of the needle since no adequate means has been provided for holding the needle steady while such breaking was done.

' An object of this invention is to provide an improved form of support and coupling, which is interposed between the needleandtube, and which makes it possible for the neck of the tube to be manually broken while the needle is in the flesh. v

A further object isto provide an improved apparatus using a coupling of this charac" ter, whichwill expedite the bleeding of a patient, and which will be simple and practical in construction, durable and eflicient in use, capable of sterilization, and with which. there'isabsolutelyno danger of injuringthe patient because of thelack of a firm support for the needle.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and ar rangements of parts as will be more full hereinafter described and pointed out in the claims. r y Y In the accompanying drawings:

Figure 1 is a perspective view illustrating the manner of use of my improved apparas; a 7 Figure 2 is a view-in elevation of the apt r y emma ily bmken- .ple 7.

ness; and

lt r si z etail t t e]dr wingsien fe en s el'uP d nimneed e erme ato was t screws i ilre 3 s-fl n arge iew. i i Se ti I thr'ough the n'e liofihervacuum tube.

nd [wit mks; memb r. ui j .glass vacuum tube 3 is 'formedfwithj a rela per d m ek ;.Wh c may; be

. v..Myimprovedicqup ir i the tube and needle comprises a stem 5 have ing ashort longitudinal bore 6 at onefend which communicates with a nipple 7 located" at an angle to the longitudinal andtransverse planes of the stem thumb-receive 7 ing handle or disc Sisseoured to the other anda laterally projecting 1 pin9 is fixed tothe stem;

end of the stem 5 finger receiving adjacent the nipple 7 and on the opposite side of the stem from thenipple Thefsocket portion 20f the hyoodermic" needle 1- receivesthe bored end of the stem 5 and frictionally the outerjend of'the nipple 7 and receives fits the same; ,A short length of rubber tubing 10 iscOnnected to '8 d the neck 4 of :the vacuum tube. or bleeding tube It will be noted-that the-tube 10 is of such a length that the extremity of the neck 40f the tube .is located within the nip- The manner of useofthedeviceis illustrated clearly in Figure 1, where it'will be it seen that the operatorplaceshis thumb against the disc 8 and his'middlefingeren gages the pin 9 t0 firmly hold the; same after the needle and, bleeding tub have been. at-

tached. After'theunee'dle has, been inserted into a patient, the operator, usestheindex.

tube ,3; Inasmuch as theextremity of this neck extends into the nipple :7, it will be seen theta very slight pressure of the neck will cause breaking of the,

num in the tube 3 will suck bloodflthrough ger of tearing. a patients operation. v

v finger to exert pressure on the neck 4 of the.

tub'e'so that the" vaCR-li 7 Although ha e illustrated ne got the preferred embodiments of my inventionyii;

Will beevident that variousslight' changes 7' I and alterations might be fiesh during the P eral form and arrangement of the parts described without departing from the invention, and hence I do not wish to limit myself to the precise details set forth, but shall consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. An apparatus of the class described, including a handle having a passage therein adapted to communicate with a hypod'e'rmic needle, a rigid nipple fixed to the handle and communicating with the passage, and a flexible airtight coupling member adapted to hold the reduced breakable end of a vacuum tube within said nipple.

2. In an apparatus of the character described, a rigid tubular member, a vacuum tube including a reduced breakable end, and

a flexible airtight coupling member adapted to hold said end of the vacuuintube within the rigid tubular member.

3. An apparatus of the character described, including a handle, thumb and finger receiving elements carried by the handle, said handle having a passage in one end adapted to communicate with a hypodermic needle, a rigid nipple extending at an angle to the handle, and communicating with the passage, a flexible airtight coupling member adapted to maintain the breakable end of a vacuum tube within the nipple, and said thumb and finger receiving elements being so arranged that one finger of a hand holding the handle is left free to brealithe end of the tube by exerting pressure on said flexible coupling member.

RALPH 1*. SCHNEIDER.

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