US1576397A - Tourniquet - Google Patents

Description

March 9 1926.

T. YANAGI TOURNIQUET Filed Julyls, 1925 Patented Mar. 9, 1926.

YUNITEi"S'lrfalElSy isiaieif@ Parser erici'f.".'

Application filed muy is, i925. serial, ne. 44,554.

To ZZ whom t1/)my concern:

Be it known that LToirUJIno YANAGLa subject of Japan, residing at Honolulu, Territory of Hawaii, have invented certain newand useful lmprovements in 'Tournr quets, of which the following is a specilication, reference being had to the accompanying drawings. f, i

This invention relates to tourniquets, and particularly to those `tourniquets wherein there is a band of material adapted to extend partially around the arm and to be en-` gaged at its ends by a clamping device,

@ne of the objects of the invention is to provide a very simple, easily applied and extremely effective. tourniquet which is particularly adapted for use when adminstering injections through a vein and in order to stop the flow .of blood. 1

A further object is to provide a device of this character which consists of a special form of clamp'adapted to engage one end portion of a small rubber hose which is passed around the arm and engaged by means of a clamp with another small portion of rubber hose or tube, the clamping arrangement being of such construction that the rubber hose or pipe may be pulled up tight around the arm to thereby constrictthe same.

My Vinvention is illustrated in the accompanying drawing, wherein Figure 1 is a perspective view of my tourniquet in applied position;

Figure 2 is a top plan view of the clamp of the tourniquet;

Figure 3 is a. side elevation thereof;

Figure 4 is a perspective view thereof;

Referring to this drawing, it will be seen that the clamp 10 is formed of a single length of wire bent to form the two parallel legs 11, which at their free ends are connected by a clip 12. The vlegs at the opposite end from the clip 12 are bent to form two resilient coils 13 extending at right angles to the plane of the legs 11. Freni these coils the wire forming each leg is eX- tended upward and inward and then eX- tended reversely so as to form the hook 14, and the two inner wires of the hooks 14 are then carried rearward and twisted, as at 15, and then laterally extended beneath the legs 11, as at 16, then longitudinally eX- tended, as at 17, then again inwardly bent, as at 18, then extended forward and bent to form the heart-shapedloop or jaw 19.

The coils 13 act to force the rectangular member formed by the bendsilG, 17 and `18 downward, thus forcing the jaw 19 toward the legs. This'jaw 19 constitutes a clamp- 14 so as to hold the two legs which form.,y these hooks closelytogcther and prevent any lateral movement ofthese hooks. The reotangularportion formed by the bends 16, 17 l ing jaw through which the rubber tube is andV 18 constitute a base which is adapted-ta,

lieagainst the skin and bearV flatagainst the part yto Lwhich the tourniquet is to be applied. f

ln the use. of thisdevice, the tube V21,`

which isa medium sized rubber tube, is

passedarouncl the hooks 14, then around theI arm, and the extremity is passed between the clampingjaw 19. inthe manner shown in Figure *,1, and then the rubber-tube `istight-y cned up upon the arm or other limb,A as shown, so that the flat base formed by the bends 16, 17 and 18 will rest flat against the arm as, for instance, against the inner surface of the arm. rlhe rubber tube is pulled up and tightened until this base is forced tightlyagainst the arm and the arm is constricted at this point. A syringe may be then used for the purpose of injecting the proper medicament into a vein and without any danger of a flow of blood.

It will be understood that two or three windings ofthe rubber tube over an artery would stop the flow of blood in the artery. The rubber tube is particularly effective, though other elastic material might be used, for the reason that the rubber tube is easily obtainable and other materials than therubber tube are difficult to apply.l This is particularly true where the tourniquet is used for the purpose of stopping the flow of blood ina vein. In the case of stopping the How of blood in an artery, although elastic material is preferable, any other material might be used.

The device is simple, easily applied, and extremely effective and can be manufactured at a low cost. It can be applied easily by one person, whereas other tourniquets now on the market are difficult to apply by one person and perform the necessary injection. In other words, the tourniquet must be applied by one person while another person injects the medicament into the limb.

the other endk coact-ing fixed and resilienty jaws disposed in a plane parallel to the plane of the relatively wide member, and a tube of flexible material formed to be engaged bythe hook at one end and at its other end engaged by said jaws.

2. A tourniquet of the character described formed to provide a longitudinally extending shank having a hook at one end, a base f connected to the shank by resilient coils acting to resiliently force the base awa-y from the shank, the extremity of the base distant from said coils being formed with a clamping jaw, and a tube of elastic material adapted to be engaged at one end by the hook and at its opposite end engaged between said shank and the clamping'jaw. 1

3. A tourniquet of the character described comprising a longitudinally extending shank and a base, resilient coils carried by the shank and base and urging the base away1 from the shank, the Shank being formed at one end with an upwardly extending hook and the base at the end opposite the hook being formed with a clamping jaw extending upward through the shank, and a tube vof elastic material engaged at distantportions with the hook and between the clamping jaw and the shank.

4. A tourniquet of the character described comprising a shank and formed of wire, the

wire being formed to provide two longitudinally extending parallel legs together constituting a shank, the legs being connected at one end and at the other end formed with coils, then extended upward to form hooks, then extended longitudinally and twisted and then bent to form a rectangular base wider than the shank and below'the same, the wire at the extremity of said base being upwardly and inwardly turned between the legs of the shank to constitute a clamping jaw, and a length of flexible material engaged at one end with said hook and at the other end engaged between the clamping jaw and the shank.

In testimony whereof I hereunto afhxmy signature.

ToKUJIRo YANAGI.

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