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8, 1938.
L. EISELE
2»7lw’123
HYPODERMIC NEEDLE GUARD
Filed April 9, 1957
Loam Elam/E
INVENTOR.
“wag/AW
A TTORNEYS.
Patented Mar. 8, 1938
2,119,123
‘UNITED STATES
ATENT
2,110,123
HYI’ODERMIC NEEDLE GUARD
Logan Eisele, Nashville, Tenn.
Application April 9, 1937, Serial No. 135,964
6 Claims.
This invention relates to a guard or holder for
(Cl. 206-43)
hypodermic needles.
Figure 8 is a perspective view of a preferred
form of my invention.
One of the objects of this invention is to pro
vide a guard for a hypodermic needle which will
Referring now in greater detail to the drawing
and to Figures 1, 2, 3, 4, and 5 in particular, the
5 prevent injury to. the canula or point during
shipping, handling, sterilizing and the like.
Another object of this invention is the provision
of a hypodermic needle guard which will act as a
gauge to indicate the length of the canula of the
10 hypodermic needle.
Another object of this invention is to provide
a hypodermic needle guard which may be easily
attached to and detached from the hypodermic
numeral l0 denotes the hub of a conventional Ll
hypodermic needle having a tapered internal
bore H and a circumferential groove l2. A
sharpened canula or needle I3 is affixed in one
end of hub l0‘ and communicates with the ta~
pered bore 1 l. A wire or stylet l4 passes through i 10
the bore of the canula to protect it when the
needle is not in use. The wire M is provided with
a handle plug I5 attached to one end thereof,
needle even with wet or gloved hands.
said .plug having a tapered portion l5a adapted
A further object of this invention is to provide to fit into and to close the tapered bore H, and
in a hypodermic needle guard of this type means adapted to be used as a handle for inserting, re
for facilitating the removal and subsequent han
moving and handling the wire M. The parts
dling of the usual looped wire commonly used to . thus far described form no part of this inven
protect the bore of the canula.
tion but constitute a conventional type ‘of hypo
Another object of my invention is to provide in dermic needle and accessory parts with which
a hypodermic needle guard means for protecting the device of the present invention is designed
from injury the looped wire commonly used to to be used.
protect the canula bore from damage, and also
The hypodermic needle guard of the present
for preventing accidental removal of said wire invention comprises a relatively narrow, ?at, rec~
'~1.1 ,, therefrom.
tangular base plate l5 having one end I‘! turned
A further object of this invention is to provide up at right angles to the plane of its surface.
a hypodermic needle guard of the type described This upturned end portion serves to guard and
which is very simple and easily made, being protect the stylet handle l5 from injury by con
formed of a single strip of metal or other suit
tact with external objects and also prevents wire
'30 able material, which has no movable or compli
M or handle l5 from falling or being accidental- ,
cated parts, which is strong and durable and not ly withdrawn from. the needle.
likely to get out of order.
Two tabs or ?ngers l8 are formed integrally
The means by which I accomplish the above with the base plate I6 and are turned upwardly
and other objects which will later be apparent from substantially the center of the two longest
:37, are best understood by referring to the following edges of the base plate opposite each other, and
description taken in connection with the accom
the upper ends I9 of. said tabs are bent slightly
panying drawing, in which
toward each other thus adapting them to grip
Figure 1 is a side elevation of a hypodermic the hub 10 of the hypodermic needle in the cir
needle guard constructed according to my inven
cumferential groove 12, the hub lying along the
All) tion, shown attached to a hypodermic needle of
upper surface of the base plate It.
the usual type, having a stylet formed with a
The base plate It has joined thereto, by means
solid head contained therein,
of the integrally formed connecting portion 20
Figure 2 is an end view of the same looking which forms an obtuse angle with the base plate
from the canula end of the needle,
I6, a trough or groove portion 2|, formed inte
l
Figure 3 is a vertical cross section of same
taken along its longitudinal medial axis,
Figure 4 is an end view of the same taken from
grally with the base plate 16, and connecting por- »
tion at, and having a V-shaped cross section as
shown clearly in Figure 2.
a
the end opposite to that of Figure 2,
Figure 5 is a plan view of the same,
The longitudinal axis of the trough portion 2|
is parallel to the surface of the base plate is and
Figure 6 is a side elevation of an optional form
of my invention shown attached to an ordinary
hypodermic needle containing a wire loop for pro
to the longitudinal axis thereof and is so spaced ;
therefrom that when a conventional hypodermic
needle is so placed in the device that the hub 10
rests on base plate IS with tabs I8 and the bent
tecting the bore of the canula,
Figure 7 is an end view of the same taken from
55 the end opposite the canula, and
"'
end portions I9 thereof engaging and gripping
the hub NJ at the circumferential groove l2, the
2
2,110,123
canula l3 will lie wholly within said trough por
tion, thus protecting canula l3 from contact with
external objects. The two inner surfaces of the
trough portion 2| may, if desired, be inscribed
said base plate portion from the edges thereof,
an upwardly and outwardly slanting connecting
with suitable indicia such as maker’s or owner’s
names, trademarks etc., or may have suitable
ation of said connecting portion and lying parallel
to said base plate portion.
scales laid off thereupon for indicating the length
of the canula of the needle, such as for example
those shown in Figure 5, where one face carries
3.'A hypodermic needle guard of narrow rec
tangular form comprising a base plate, integrally
10 an English and the other face a metric scale.
portion forming an extension of said base plate
portion, and a trough portion forming a continu
formed needle engaging tabs projecting at right
angles to said base plate from opposite edges
thereof, an end tab projecting at right angles to
[said base plate from one end thereof, and an
Figures 6 and 7 show an alternate or optional = " integrally formed trough portion forming an ex
form of my invention. The hypodermic needle tension of said base plate spaced from and par
allel thereto, said trough portion carrying men 15
15 hub Illa carries a looped wire Ma, instead of the
wire and plug or handle previously described. In suration indicia on its inner surface.
' 4. A hypodermic needle guard of one-piece
this form of my invention the upwardly turned
end Ila is narrowed toward its base as shown in " construction comprising a base plate portion, a
Figure '7. This upwardly turned end lid is made plurality of tabs projecting at right angles to said
v20 small enough to pass through the loop Ma and base plate portion from the edges thereof, an 20
may thus be used as a‘ hook or handle to facilitate upwardly and outwardly slanting connecting por
removing the looped wire from the needle and tion forming an extension of said base plate por
Similarly the upper and lower face of base plate
I6 may be inscribed or stamped as. desired.
in subsequently handling or reinserting said wire,
it being understood that the needle is removed
25 from the guard during this operation. The nar
tion, and a trough portion forming a continuation
of said connecting'portion and lying parallel to
said base plate portion, said trough portion being
rowed neck portion of the upturned end Ha is
for the purpose of preventing the wire loop Illa
from accidentally becoming disengaged there
from. It is, of course, understood that either of
30 the upturned tabs I8 may be used as above de
inscribed with mensuration indicia on its inner
scribedto remove and handle the looped wire.
The operation of inserting the needle into the
device consists in placing the hub in position so
from opposite edges of said base plate at sub
stantially right angles thereto, and having their
free ends bent slightly, toward each other and
that the ends IQ of tabs l8 lie in groove l2 and
along vthe trough portion 2|.
adapted to engage the hub of a conventional hy
podermic needle, an integral end tab projecting
Slight pressure of the hub will then spring the
‘tabs l8 apart su?iciently to allow the hub 10 to
upwardly from one end of said base plate sub
pass between them until it lies upon base plate H6.
The inherent elasticity or springiness of tabs l8
will cause them to grip the hub and retain it in
this position. To remove, the hub is gripped be
tween thumb and fore?nger and pulled upward,
upwardly slanting connecting portion positioned
at the opposite end of said base plate, an integral
trough member of substantially a V-shaped cross 40
section connected by said connecting member to
said base plate, said trough member spaced above
meanwhile holdingrthe guard in the other hand.
The tabs I8 spring apart and allow the hub to
member carrying suitable mensuration scales on
35 the canula lies
45
pass out between them.
'
-
While I have here shown and described cer
tain preferred forms of my invention it will be
obvious to those ‘skilled in the art that certain
changes may be made in the details of construc
tion, and I therefore do not wish to be limited
by the actual construction shown except insofar
as I am limited by the scope of the appended
claims.
Having described my invention, what I claim
55 as new and desire to secure by Letters Patent is:
1. A hypodermic needle guard of narrow rec
tangular form comprising a base plate, integrally
formed needle engaging tabs projecting at right
angles to said base plate from opposite edges
60 thereof, and end tab projecting at right angles to
said base plate from one end thereof, and an in
tegrally formed trough portion forming an ex
tension of said base plate spaced from and paral
lel thereto.
2. A hypodermic needle guard of one-piece
65
construction comprising a base plate portion, a
plurality of tabs projecting at right angles to
surface.
5. A hypodermic needle guard of relatively
narrow rectangular form comprising‘ a base plate,
integrally formed side tabs projecting upwardly 30
stantially at right angles thereto, an integral
said base plate and parallel thereto, said trough
its inner surfaces and adapted to partially enclose 45
the canula of a hypodermic needle.
6. A hypodermic needle guard of narrowrec
tangular form comprising a base plate, integrally
formed side tabs projecting upwardly from op
posite edges of said base plate at substantially 50
right angles thereto and having their free ends
bent slightly toward each other and adapted to
engage the hub of a conventional hypodermic
needle, an integrally formed end tab projecting
upwardly from one end of said base plate sub,
stantially at right angles thereto and having a
narrowed neck portion adjacent said base plate,
an integrally formed upwardly and outwardly
slanting connecting portion positioned at the op
posite end of said base plate and forming an ob 60
tuse angle therewith, an integrally formed trough
member of substantially V-shaped cross section
joined by said connecting portion to said base
plate, and spaced upwardly, outwardly and par
allel to said base plate, and adapted to partially
enclose the canula of a hypodermic needle.
‘
'
LOGAN
EISELE.
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