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Патент USA US2269065

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« Jan. 6, 1942.
F. w. RoBER'rs
' 2,269,065
Filed April 26,- 1941
4 Sheets-Shee'tl v1
/4 27027269/
Jan. 6, 1942.
Filed April 26, 1‘941
‘ _2,269,065
4 Sheets-Sheet 2
FP50 „4790615797152
Jan. 6, 1942.
Filed April 26, 1941
4 `Shee‘lZS-Shee‘íl 3
F/Qfß W. @oef/Ws,
Jan. 6, 1942.
Filed April 26, 1941
4 Sheets-Sheet 4
F/Pfß //1/. Hoef/Pf6
Patented Jan. 6, 1942
’ ~
Fred W. Roberts, Portland, Oreg.
Application April 26, 19.41, Serial No. 390,618 v '
1 claim.
(C1. 12S-87)
This invention relates'to an emergency splint
for supporting fractures of accident victims, to
put them in safe condition for -ambulance trans
portation to hospitals, orr the like, while keeping
factured- bones separated by tension superior to f
the expected reñex muscular action that would
otherwise cause rough ends of= fractured bones
to lacerate the victim’s flesh.
ture, hip fracture or a combination-of these two
types of injury;
Figure V shows the splint applied to an »arm
fractureof the lower arm bonesfor elbow and
for the upper arm bone-the application will vary
only in the placement of the arm straps;
Figure VI shows the application of the splint
to a broken knee cap; and
I am aware that many types' of- apparatus have
been devised for such purposes,kthe majority of ‘
Figure VII is a side view of the application
for hip fracture, femur, tibia, ñbula or any com
which require a different appliance‘for each type
of fracture, being, in fact, so complicated that a
person of unusual >skill is required to select the
proper piece required for a given case, select
from a large assort’ment'of~ straps and bandages
to properly apply it and consume a considerably
bination of these injuries;
longer time than will- be necessary with a device
that is properly simpliñed.
The object of the present invention is sim
plicity, with a superior degree of effectiveness
and versatility which favors application to su-p
port fractures, such as arm> bones, shoulder frac
tures, hip, knee and leg fractures, or to a very
effective extent combinations of them, with a
minimum selection of support straps 'andband-f'l
Another object of the invention is a splint set i
of such relatively simple construction and num
ber of parts and relatively small compass that
it, or several sets, can be readily carried in high
Way patrolautomobiles and applied by highway
patrol officers withoutv surgical training upon
very simpleinstruction being given.
In delineating my invention and its useful
features, I have drawn typical illustrations of
the splintV in use, partially showing its versatility
Figure VIII is a modiñed form of strap means
for determining the amount of tension applied
to the flexible portion of the splint.
vReferring now to the structural drawings,
Figs. I to III inclusive. I isa substantially rigid
bar member, made from a strong piece of
metal, preferably aluminum alloy, and having
both edges turned inwardly to form oppositely
facing longitudinal grooves as shown inl Figures
I, II, and III at Ia and Ib.
This flanging and inturning the edges will
render the piece substantially rigid under the
magnitude of forces to be expected in applying
it and this is important. The member I is pro
vided with cross slots 2 at» both ends, as shown;
though iingers made'by notching the end may
be added or substituted; and a clamp member 3
may be riveted or autogenously welded in place
near the opposite end as shown in Figures I, II,
and‘III. Both endsy of the member I are 'also
provided with apertures 2A for a purpose to be
hereinafter pointed out.
The clamp member 3 has a screw 4 that is
adapted to frictional contact With the flexible
slide 5 kwhereby the latter may beheld in se
lectedl positions relative to the bar member I.
and ability to serve with; excellence in a con
Both ends of the slide are rounded, as shown, to
siderable number of' widely varying circum
prevent snagging the clothing, bandages, or the
stances, its very simplicity being the important 40 flesh of the patient being dealt with.
, The flexibility of the slide 5 is a very impor
tant feature as will be pointed out in connection
with descriptions of the drawings- showing the
application of the splint. Light weight is very
used’. to show the construction of the splint and
theA remainder to illustrate its application as 45 desirable combined with springiness and rela
tively high strength. Both ends of thek slide 5
are also provided with apertures 5A. These
In the drawings:
apertures and those at 2A in the rigid member
Figure I is a plan ofr my splint, showing the
Drawings accompany -and form a part of this
speciñcation, in which the ñrstthree iigures are
telescopic- elements thereoffslightly extended;
Figure’II is an `Orthographie projection of Fig->
ure I;
Figure III isa section of ~ Figure I at III-III,
Figure I ; ‘
I are useful in suspending the splinted limb of a
patient in an elevated position in an ambulance
or the like by looping a cord through the aper
tures and over a suitable support.
I have found that alength of about 40~inches1
is' ' desirable, both‘ the~rigidi barl 'andy vthe flexible
FigureIVus‘one-'of‘ the drawings showing ap
plication of the splint, in this case to a leg frac 55 slide being the same length. I prefer to make
the rigid bar of about 13 gage strong aluminum
alloy, such as “dural,” and the flexible slide of
11 gage; and the slide should be a smooth fit
within the grooves formed by inturning the
edges of the rigid bar. The slide will be about
31/2” Wide and if made of one of the strong
aluminum alloys and of 11 gage flat stock, the
required springiness will be pretty close to what
is needed.
The rigid bar will be somewhat Wider
the arm in tension with the‘springy reaction
sustained by the armpit, the bandages, such as
26 and 21, being last applied. This again shows
that spring tension is present at both ends of
the splint, which is one of the essential features
of my splint assembly.
Figure VI illustrates the application of the
splint to a knee cap fracture. (The boot 2l is
used as in other applications, also the spring
so that the slide can telescope into it properly 10 scale 22, supplemented by the springy slide 5
and all outside exposed edges Will be rounded.
which is here turned end for end.) Additionally
If made according to the dimension given, an
a support pad 3|, which will preferably be a block
overall effective extension to hold fractures on
of fabric covered sponge rubber, will support the
a six foot individual is attainable or the splint
under side of the knee. This pad is useful in
may be adjusted in most cases to hold a fracture 15 case of hip fracture, being shown in Figures IV
on a child.
and VII.
In emergency preparation of an accident vic
Figure VII is a view of the same application
tim for transportation to a hospital, the impor
shown in Figure IV, being taken at right angles
tant thing is to so splint the fractured bones
to the latter View, the additional ‘detail being
that reflex muscular -action does not draw jagged 20 deemed advisable since this application will be
used far oftener than any other.
ends of bone into the flesh, which will invariably
It Will be especially noted that in practically
occur unless the broken ends are forcibly held
every application of my splint, the spring scale
Considering Figure IV which will be assumed
applies resilient tension to an injured member,
to represent an accident victim having frac 25 at one end of the splint, While the spring slide 5
reacts at the other end; hence the very important
tures of the femur, both lower leg bones and hip
bones, or any lesser number of the combinaresult, that the tension is the same at both ends.
This tension will vary according to the judgment
The splint is extended until the ñexible slide is
of the person applying> it, considering the
far enough above the crotch so that a crotch 30 physique of the patient.
strap 20 will pull upwardly and outwardly, the
The words “spring scale” are used because a
latter under the springly influence of the slide.
reasonably correct indication of the amount of
tension actually applied is of great assistance to
A boot 2l will be held under regulated tension
he person using the splint, however great his
to the slot 2 in the flexible slide 5, or bar, either
by placing a spring scale 22 in the hook-up, or 35 skill and experience; hence the device Will be
by the use of a graduated pull strap 22A having
regarded as the same thing whether or not there
is a pound indicating scale.
a scale 22B graduated in units of stress and
While the slide 5 is an integral part of my
fractions thereof for determining the amount of
splint and the spring scale is preferably a sepa
tractio-n applied to the fracture.
Because the slide is springy, the reaction 40 rate part, attached by straps or the like, it is
just as much a part of the splint as either of the
against the strap 20 will be just the same tension
as shown on the spring scale, or that shown on
other two members, since the overall advantage
the pull strap. The leg bone fractures will all
be held apart b-y the same amount of force, say
cannot be realized without it.
Having fully disclosed my invention and widely
15 pounds for an average adult, as will suffice 45 shown the manner of its best use, what I claim
to resist the involuntary muscular contraction
as new and desire to secure by Letters Patent is:
A splint for fractures comprising an elongated
mentioned hereinbefore. This is easily regulated,
all at once, b-y one pull strap, such as 25, the
flat rigid bar of greater length than that of a
upper connections having been made ñrst. Since
human limb being dealt with and having two of
the surfaces of the splint are smooth, the appli 50 its edges turned inwardly to form oppositely fac
cation of intermediate straps will not interfere.
ing longitudinal grooves to afford rigidity to the
Intermediate strap bandages, such as 26, 21, 2B,
bar throughout its length, a flexible flat plate
and 29, hold the splint to the injured parts; and
equal in length to that of the rigid bar and slid
if hip bone fracture is present, the body strap 353
ably embraced by the longitudinal grooves in said
willbe employed.
55 rigid barV whereby either end of the ñexible plate
It will be at once apparent that application
may be extended beyond the ends of the rigid
of the splint and holding devices could have been
bar, means for locking the flexible plate in any
done by one even reasonably expert, in much
of its extended positions with respect «to the
less time than it has taken to read the foregoing
rigid bar, said flexible plate adapted to be bent
description of how it is done.
60 as a bow throughout the length of its extended
I am aware that spring scales have been pro
portion with respect to the rigid bar, strap
posed, but not in combination with an oppositely
springy slide. Heretofore, there has been pro
fastening means for attaching the rigid bar to a
limb, bending means for the flexible plate com
posed a quite complicated metal structure and
prisingV straps removably secured at opposite ends
harness that obviously requires several times the 65 of `the splint on -,the same side thereof to bend
adjustment; nor was spring tension on broken
the extended portion of the flexible plate, means
bones equal and opposite as with my splint.
formed on one end of said last mentioned straps
Figure V represents a victim dressed with splint
for attaching the end of the limb to the end of
and bandages for a lower arm fracture. The
the flexible plate, additional straps removably se
same spring scale 22 and lower strap arrange 70 cured to the splint and adapted to attach to a
ment Will be employed as in Figure IV; the strap
limb on both sides of a fracture in such manner
20 is now placed under the armpit with the
that the springiness of the bent portion of the
flexible plate holds the fracture under tension.
flexible slide well above the shoulder.
The mitten 2I2 is buckled up close and holds
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