US1322050A

US1322050A - V tourniquet

Info

Publication number: US1322050A
Authority: US
Publication date: 1919-11-18
Anticipated expiration: 1936-11-18

Description

H. W. PLUMMER.

TUURNIQUET.

APPLICATION FILED OCT. 14. ms.

1,3Q2,050. Patentd Nov. 18, 1919.

"ninn snares Ba HENRY W. PLUMMELR, 0F .AUGU$TA, MAINE.

TOUBNIQUET.

original application filed. March 13, 1918, Serial No. 222,142. Divided and this application filed October 14,

1918. Serial No. 257,975.

To all whom it may concern:

Be it known that l, IIENRY W. PLUMMnn, a citizen of the United States, residing at Augusta, in the county of Kennebec and State of Maine, have invented certain new and useful Improvements in Tourniquets, of which the following is a specification.

This invention relates to certain improvements in tourniquets, and it is an object of the invention to provide a device of this general character including a body provided with a compression member together with a limb embracing compression band anchored at one end of the body, and having its opposite end portion adjustably engaged with the body and wherein novel and improved means are employed for effectively locking the compression band in its different adjustments relative to the body, and wherein said means may be readily controlled by a persons hand engaged with the body.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved tourniquet whereby certain.important advantages are attained and the device rendered simpler, less expensive and other wise more com-enient and advantageous for use, as will be hereinafter more fully set forth. t

The novel, features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understoochl will now proceed to describe the same with reference to the accompanying drawings, wherein.

Figure l is a View in elevation of a tourniquet constructed in accordance with an embodiment of my invention, the inter-- mediateportion of the limb encircling band being broken away;

.Pig. 2 is a fragmentary view in top plan of my improved device as illustrated in Fig. '1 and t l 3 'is an enlarged fragmentary sectional view taken substantially on the line of Fig. l. n

As disclosed in the accompanying d awings, B denotes a block perferably rectangu lar in form. C denotes a compression member coacting with the body B in a manner and for a purpose set forth in my copending application, Serial No. 222,142, filed March 13, 1918, and of which. the present application is a division.

Specification of Letters Patent tion is also provided with a slot 23 throu Patented Nov. 18, 1919.

The longitudinal margins of one of the faces of the block B are defined by the oppositely directed flanges 2 provided with the slots 3 extending longitudinally of and substantially in parallelism with the side faces of the block B.

P denotes an elongated plate arranged longitudinally on a slight curvature, and which has an end portion returned to afford a barrel 17 through which is directed the bar 18 of one of the flanges 2 and as afforded by a slot 3. By this arrangement the plate P has swinging movement about an axis substantially at right angles to the compression member (l. The plate P is also of such a length as to have its outer end portion engage a limb to which my improved tourniquet or hemostatic bandage may be applied. Suitably secured to the outer end portion of t the plate P is a flexible limbembracing compresslon band or web WV which has its opposite end portion adjustably engaged with a second plate P. The outer end portion of the plate P is returned to afford a hook 'member 19 insertible through a second slot 3 in a direction outwardly of the member (l and which interlocks with the bar 20 iiiforded by a second slot 3. The band W is preferably formed of textile material and prevent it from tippingwhen the same is being forced against the flesh. It is also preferred that the plates P and P be formed of steel.

Welded or otherwise secured to the outer face of the plate P in close proximity to the hook member 19 is a cross'strip or plate 21 extending transversely of the plate. The

outer marginal portion of the plate 21 is off set relative to the plateP' and said offset portion has the slot 22 through which the free end portion of the band W is threaded. The end portion of the plate P remote from the hook member 19, is offset outwardly on a predetermined incline and such offset popg i which band W directed. The side marginal portions of the plate P are provided with the outstanding and diametrically opposed wings or ears-2 4e whiclrse'rve as supports for the pin extending transversely of the plate P. Pivotally engaged withthe pin 25 are thearms 26carried by the opposite ends-of the lockingbar 27. The bar 27 I is provided withthe' teeth 28 which are adapted to penetrate or impinge upon- 3/1301- tion of the band disposed therebeneath and as will hereinafter be more fully explained. The bar27 is constantly -urged toward a the 7 plate P through themedium of theexpansible member 29herein disclosedas a coiled sprlng and which member 1s interposed between the free end portion of therearwardly directed arm 30 carried by theupper marginal portion ofthe bar27 and the bar or strip 31 to be hereinaftermore-particularly referred to'.

Thefree end portion of theband'is first threaded throughtheslot 23 andextended between the plate P and the bar27, threaded through theslot .22, and then again threaded through the slot 23; The bandis then returned and passed beneath thebar '27. By imposing a pull upon the returned ,portion or bight a oftheba-nd VV'the band tion act the band when-the device 'is in applied position and particularlyduring its application I' have slidably engaged withthe plate 21 and movable in r direction-transverselyoi' the plate P the bar or strip 31 having one end portion provided with-an outstanding-V lateral extension 32 which underlies the free enl. -p0rtion of the arm 30 when at the-limit of its movement'i-n one direction and thereby serves toholdthe arm '30-against'depression: It is also-tob'e noted such close proximity to the block B when the device is in applied position to permit the requisite operations thereof by the-digits of the hand engaged with the block B.

The bar or strip 31 is provided with a slot 33 through which extend rivets "34L orthe like ;carrie'd bythe plate 21. The rivets 34 *serveto maintainthe bar or strip-31- inapiplied position upon the plate 21 and the movement of said-bar for str ip31 is'limited bylthe slot a 33. employingia fplurality of rivetsl 34: or-=the-=like, it" will; Joe selfi-evident 'thatthe bar or strip is heldagainst swinging movement and is mounted for sliding movement in a fixed path. One of the rivets 34also serves as ametaining means for an end portion of the expansible member .29.

By having the member 29 hearing directly upon the bar or strip 31, it will be at once noted that the member 29 serves to normally maintain the bar or strip 31 against sliding movement so that the same will be effectively held in position with the lateral extension 32 positioned beyondorbeneath the arm 30, as the occasions-of practice may necessitate. From the foregoing description, it is thoughtto be obvious that a tourniquet constructed in accordance with myinvention is particularly well adapted for use by reason of the convenience=andfacility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spiritthereof, and for this reason. I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying outmy invention in practice except as here- I inafter claimed.

constantly urging the locking bar toward the plate and servin'gto normally hold the second bar against movement.

2-. In combination with a plate adapted to have avmember adjustably engaged there with, a swinginglocking bar carried by the platefor engagement with said member to hold the member against retrograde movement, and a slide carriedby the plate and meeting with the locking bar for locking the same against movement-and in engage ment with the member adjustably engaged with the plate, said slide having movement in a direction substantially parallel to the axis-of movement of the swinging locking bar.

In testimony whereof I hereunto ailix my signature.

HENRY w. PLUMMER.