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Патент USA US2106150

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Jan. 18, 1938.
2,106,150
E. E. LONGFELLOW
‘ SURGICAL HYPEREXTENSION FRAME
Fixed Aug. 19, 1935.
INVENTOR.
‘
‘I
4' ATTORNEY.
iaateiited Jan. 18>, 1938
2,106,150
SURGICAL HYPEREX'K‘ENSEGN FRAME
Earl E. Longfellow, Warsaw, 1nd, assignor to
Harry Herschel Lciter, Warsaw, Ind.
Application August 19, 1935, Se 'ial No. 36,321
5 Claims.
(01. 128-584)
invention relates to improvements in sur
gical hypei'extension frames and the object there
to afford
adjustable support for a person
hsving an injured spine by which is iaciIitated
5
a iustrncnt of fractures or dislocations of "the
'eparatory to applying a plaster cast. An—
object is to provi ie an appliance for grad
ually producing hyperezrtcnsion to the torso of
"
nt preparatory to adjustment thereof
. d eucasing it in‘ plaster cast so that the spine
will he sustained with proper curvature during
convaloscence iollowing adjustment. Other ob
" and advantages of the invention will appear
in, t
15
following description.
.
An illustrative embodiment of the invention
is shown in the accompanying drawing, in
which.
Fig. l is
perspective View of the appliance;
2 is a, iragmentary elevation of one of
the standards and corresponding ink-bar; and
Fig. 3 is a fragmentary side elevation of a sup
porting side and standard thereon.
illu ‘rative ainbodiment of the invention
1 sts of a basal formed of a. horizontal bar
we ill "I. at one end a
'tical standard 2 provided
at its top with a cross head 3. The other end
- the ‘car has an upturned portion constituting
a. post
0:
in which is disposed a threaded adjust
. id rod 5 The base i is superimposed upon feet
is consisting of cross bars which are secured
thereto.
Upon the base is mounted a slide 1 having an
upright standard 8 through which the adjusting
rod 5 extends, there being stops 9 secured on
C13 bi said rod upon the opposite sides of the stand
ard 3 arranged to permit turning movement of
the rod in the standard and prevent axial move
ment of the rod relative thereto, so that upon
turning the adjusting red the standard 8 and its
40 slide ‘l are moved upon the base toward or from
the opposite standard 2 accordingly. The slide
7 has lugs ill between which ismounted a roller
i! upon a pintle i2 the ends of which are se
cured in said lugs. The roller has contact with
45 the base i and thereby the slide is retained in
proper operating position on said base.
The standard 8 has
head i3 similar to the
of the standard 2, and
has a horizontal shaft
at its upper end a. cross
cross head 3 on the top
each of said cross-heads
Hi, the ends of which ex
tend through upwardly projecting lugs l5 located
at the ends of said cross heads.
Upon each shaft M is pivotally mounted a link
a bar
it having downwardly projecting lugs ll‘
I
‘through which the corresponding shalt ill ea‘:v
tends.‘ Each link bar has made therein a hori~
zontal slot it‘. that
through one side there~
of and closed at the opposite side. The link bars
are disposed upon their respective cross heads so oi
that the openings of their slots l8 are faced to
ward each other. Upon each shaft M is dis
posed a spring 59 the terminals of which respec
tively bear against the corresponding cross head
Zi-~-i3 and
link bar mounted thereon so that
said link bars are moved yieldingly toward each
other to an extent limited by a jaw 26 on one of
the lugs ll’ that has contact with a stop iii in
the corresponding cross head.
A pair of hyperextension flexible bridge bars 15
22, ‘preferably of spring i etal, are disposed with
their opposite ends inserted in the link bars and
are by manipulation conveniently spaced apart
to expose therebetwecn the spinal column of a
patient while posed supine upon said bridge bars 20
and permit the surgeon to closely examine and
conveniently adjust displaced vertebra. The
link-bars constitute connections for removably
securing the respective ends of the bridge bars
to the standards 2 and 8 and are preferably ar 25
r vnged to have tilting movement upon their lon~
gitudinal axes in the upper ends of said stand
ards which constitute their supports. It is de
sirable that the link-bars are of such character
as to’ cause the bridge bars when positioned there 30
in to bow upwardlywhen the supports for the
link-bars‘ are moved toward each other, and to
readily free the bridge bars from the connections
when the supports are moved away from each
35
other.
Operation
In operation the appliance is placed upon a
floor or bench (not shown) and, a blanket (not
shown) is laid over the bridge bars and the pa 40
tient is positioned supine thereon with the spine
disposed lengthwise parallel with the bridge bars
and in suspension in the space therebetween.
The lengths of the bridge bars preferably are
such as to afford support for that portion of the
torso of the patient which extends from the
clavicle to the pelvic regions. The adjusting rod
55 is then turned by manipulating its handle 55',
causing movement of the slide 7 and its stand“
ard 8 toward the stationary standard 2 on the (
base.
In this operation the bridge bars 22 are
compressed lengthwise, and the link bars l3
thereupon accommodatingly tilt upwardly away
from each other upon their respective shafts iii.
Due to the tilting movement of the link bars l6,
2,106,150
as the standards are moved toward each other,
the bridge bars are ?exed upwardly more or less
low
dependent upon the travel of the adjusting rod 5,
and in the manner hyperextension is gradually
applied to the patient without material discom
fort.
If desired, the bridge bars may be initially en—
cased with gauze and/or a lubricant, after which,
a plaster cast is- applied so- as to encompass the
10 torso of the patient and the bridge bars.
After
the plaster cast has set, the slide is retracted
on the base so as to permit the ends of the bridge
bars to be released from the link bars. The pa
tient, together with the plaster cast and the
15 bridge bars are removed from the appliance, and
subsequently, if so desired, the bridge bars may
be withdrawn by sliding them endwise from the
plaster cast.
I claim:—
20
1. A surgical hyperextension frame consisting
of a base having feet to prevent lateral tilting
thereof, and provided at one end with a vertical
standard and at its opposite end with a post, said
standard having a cross head at its top, a slide
on said base between said standard and post pro
vided with means to retain the slide in operating
position on said base and having also an upright
standard provided with a cross head at its top,
link bars pivotally mounted respectively in said
cross heads, said link bars having corresponding
horizontal slots that are open through the oppos
ing faces of said link bars and closed at the op
posite sides thereof, means to limit tilting move
ment of said link bars in their respective cross
heads toward each other, springs acting to move
said link bars toward each other, flexible bridge
bars the opposite ends of which are removably
positioned in the slots of the corresponding link
bars and spaced apart from each other, and an
40 adjusting rod threaded in said post operatively
associated with the standard on said slide for
moving same toward the standard on said base
thereby to cause upward ?exure of, said bridge
bars.
2. In a surgical hyperextension frame, a base
member provided at one end with a standard and
at its opposite end with a post, a slide on said
base between said standard and post having an
upright standard, said standards each having a
cross head at its top, link bars pivotally mounted
in said cross heads and having corresponding
horizontal slots made in their opposing faces,
means to limit tilting movement of said link bars,
?exible bridge bars the opposite ends of which
are removably positioned in the slots of the cor
responding link bars, spaced apart from each
other, and an adjusting rod threaded in said post
operatively associated with said slide to cause
relative movement of said standards toward each
other and thereby cause upward ?exure of said
bridge bars.
3. In a surgical hyperextension frame, a base
member, a slide member on said base member 10
provided with means for adjustably moving same
relative to the base member, link bars respec
tively having pivotally supported relation with
said base and slide members located opposite with
respect to each other, the opposing faces of which
link bars are slotted, and ?exible bridge bars the
opposite ends of which are removably positioned
in the slots of the corresponding link bars and
spaced apart from each other, said linkbars and
bridge bars being so operatively associated with
said members that upon movement of said slide
member in one direction said bridge bars are up
wardly ?exed.
4. In a surgical hyperextension frame, two
link bars each of which has a pivotal support
therefor, said bars being disposed oppositely and
in parallel relation with each other, the opposing
faces of said bars having corresponding slots
therein, means for adjustably moving the sup
ports for said link bars relatively toward and
from each other, and bridge bars the opposite
ends of which are removably positioned in the
slots of the corresponding link bars and spaced
apart from each other, said bridge bars, link bars
and the adjustable means being operatively asso
30
ciated so that when said supports are moved to
ward each other the bridge bars are ?exed up
wardly and upon movement of said supports
away from each other said bridge bars are dis
connected from said link-bars.
40
5. An appliance of the class described consist
ing of a base having standards thereon arranged
for adjustable movement toward and from each
other, means for adjusting said standards, tilting
members on the upper ends of said standards, and
bridge bars connected with and suspended be
tween said members and adapted to be bowed up
wardly upon relative movement of said members
toward each other and to become freed from con
nection with said members upon relative move
50
ment of said members from each other.
EARL E. LONGFELLOW.
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