US 1667409 A
Description (OCR text may contain errors)
April 24, 1928.
D. R. BARR ANATOMICAL sLEEvE Filed Sept. 21. 1927 INVENTOR:
BY ./C4 ATTORNEY;
Patented Apr. 24, 1928.
UNITED STATES! PATENTIOFFICE.,7;
DANIEL a. BARR, onGnAND RAPIDS, OHIO, assrenos To warms INSTRUMENT COMPANIES, or ROCHESTER, NEW YORK,
A GORIORATION OF NEWYOBK."
Application filed September 21,1927, Serial 110,221,102. 1 I
This invention relates'to apparatus for measuring the pressure characteristics of, the. blood stream 111 the human body and more in particular toCan improvement in the means for holding a fluid pressure container such as the usual armlet or cuff against the artery in a limb (as the upper arm of a human being);
For a full understanding of the principle of operation upon which the invention is based, its advantages and characteristic features, reference is made to the accompanying drawings wherein: 1
Fig.1 is a plan view of a construction embodying the invention and;
Fig. 2 is a perspective view showing the application thereof.
Heretofore it was almost general. practice to use as a backing a sleeve or bandage of flexible fabric indiscriminately wrapped about the limb and the bag thereon. I have found that by that method the pressure reaction of the backing upon the bag is not uniform with the result that the pressure indications of the instrument may vary within relatively wide limits.
I have discovered that highly satisfactory results may be obtained by providing a bandage which may be applied on the style of the well known spirally wrapped puttee.
Having reference to Fig. 1. the sleeve'or binder preferably consists of three parts, namely a pocket portion 10 for receiving the bag 11. an intermediate portion 12 of the same width as the pocket portion and of a length sufficient to overlap the pocket portion or rather the bag when the latter is in operative position on the limb, and a strap portion 13 which, generally expressed, has a relatively small width, which may vary within certain limits, but which must not exceed one half the width of the pocket portion and must be disposed entirely on one side of the longitudinal center line of the binder, except for a short transition area 1.4. One edge of the strap portion is preferably a continuation of and in alignment with the corresponding edge of the pocket portion and the intermediate portion. I
By this construction it possible to obtain the desired effect. The bandage is so applied that the straight edge a is uppermost on the arm, i. e., nearest to the shoul- I der. The bag 11 has a length to encircle an average arm and the intermediate portion a binder of a. flexible fabric 12 is preferably of the same as the bagllor the pocket portion 10 so that may fully overlap the latter in operative position :on the arm. Thestrap portion 12 is then spirally wound about the arm so as to cover substantially the whole width of the bag; The narrower the strap portion the greater must be its length. For practical reasons I prefer a strap having a width between one third and one half the Width of the bag and lengthto provide at leastthree full turns about the arm.
The arm, at the point where the bag is usually applied, tapers somewhat toward the elbow so that the strap portion 13may be wound spirally and yet so as not to leave a fold or the'like. I have found that under the usual circumstances, the spiral winding of the strap portion provides a backing of substantially uniform pressure reaction throughout and thereby brings about a unifor'm dstribution of the pressure upon the region containing the artery.
While the form disclosed satisfies the usual requirements, the strap portion may be cut bias so as to more perfectly fit certain conditions, if that should be found' necessary or desirable.
In the drawi g, the bulb .15 and the manometer 16, represent the usual pressure producing and pressure indicating devices and 17 represents anarm to which. the air bag is most commonly applied.
I claim: 7 p 1. In a. device of the character described, the combination with an elastic air bag. of for securing the bag to a limb, comprising at one end a pocket portion for receiving the bag, an intermediate portion defining a continuation of the pocket portion, having thesame width as the latter and a length sufiicient to substantially overlap the pocket portion in operative position on the limb, and a strap portion at the other end, the strap portion having a width not in excess of one half the width of the other portions and a length sufficient to provide at least three turns about the limb, the strap portion lying on one side of the longitudinal center line of the binder. y
2. In adevice of the character described, the combination with an elastic air bag, of a binder of a flexible fabric for securing the bag to a'limb, including a pocket portion for receiving the bag having a Width not in excess of one half the width of the pocket portion and a length suflicient to provide at least three turns about the limb, the line of juncture bet-ween the strap portion and the remaining part of the binder lying substantially on one side of the longitudinal centerline of the latter.
3. In a device of the character described, the combination with an elastic air bag, of a binder of a flexible fabric for securing the bag to a limb, comprising at one end a pocket portion for receiving the bag, an intermediate portion defining a continuation and a strap portion of the pocket portion, having substantially the same Width as the latter and a length sufiieient to substantially overlap the pocket portion in operative position on the limb, and a strap portion at the other end, the strap portion having a width not in excess of one half the width of the other portions and a length sufiicient to provide at least three turns about the limb, the line of juncture between the strap and the intermediate portion lying substantially on one side of the longitudinal centerline of the latter..
In testimony whereof I afiix my signature;
DANIEL R. BARR.