U.S. patent number 3,840,221 [Application Number 05/393,988] was granted by the patent office on 1974-10-08 for top-within-top for x-ray table.
Invention is credited to William F. Hogan.
United States Patent |
3,840,221 |
Hogan |
October 8, 1974 |
TOP-WITHIN-TOP FOR X-RAY TABLE
Abstract
An X-ray examination table assembly includes a flat top which is
movable elevationally and also lengthwise and transversely on a
table base. Mounted slidably on the flat table top in the
lengthwise direction is a second top or patient panel board having
a narrow head area which, when positioned out beyond the under top,
allows for neuro examination of the head of the patient. All
accessories pertinent to the patient are attached directly to the
slidable upper panel board and move with the patient.
Inventors: |
Hogan; William F. (Woodbury,
NJ) |
Family
ID: |
23557071 |
Appl.
No.: |
05/393,988 |
Filed: |
September 4, 1973 |
Current U.S.
Class: |
5/601; 5/600;
5/625; 5/623; 108/143 |
Current CPC
Class: |
A61G
1/00 (20130101); A61G 13/10 (20130101); A61B
6/04 (20130101) |
Current International
Class: |
A61B
6/04 (20060101); A61G 1/00 (20060101); A61G
13/00 (20060101); A61G 13/10 (20060101); A61g
001/00 (); A61g 013/00 () |
Field of
Search: |
;269/322-328
;250/439,444,446,448-452,456 ;308/3.6,3.8 ;108/143 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Lake; Roy
Assistant Examiner: Abrams; Neil
Attorney, Agent or Firm: Paul & Paul
Claims
What is claimed is:
1. In an X-ray table assembly:
a. a cubical table base;
b. an elongated first table top mounted on said base and extending
therebeyond in both lengthwise directions;
c. said first table top being movable in both the lengthwise and
transverse directions relative to said base;
d. said first table top including a frame having thereon a
flat-surfaced panel having inclined lengthwise side edge
portions;
e. a side rail supported along each lengthwise edge of said
first-table-top frame;
f. a patient-receiving second table top supported on said panel of
said first table top for manually actuated sliding movement
thereon;
g. said second table top having a narrow head board portion at its
forward end;
h. said second table top having along its lengthwise edge portions
metal guide rails having downwardly inclined portions having
therein strips of lowfrictional material facing said inclined edge
portions of said first-table-top panel for guiding said second
table top in its sliding movement on said first table top;
i. anti-tilt retaining means supported in depending position from a
rearward side portion of said second table top for engaging the
under-surface of said side rails of said first-table-top frame for
preventing tilting of said second table top relative to said first
table top when said second table top is moved slidingly forward to
position said head board beyond said first table top; and
j. attachment means at spaced intervals along said metal guide
rails of said second table top for attachment of a plurality of
accessory devices, whereby said accessory devices move with said
patient.
2. Apparatus according to claim 1 wherein:
a. said retaining means includes downwardly extending arms attached
to said second table top having rollers adapted to engage the
undersurface of said side rails of first table top.
3. Apparatus according to claim 1 wherein:
a. carry handles are provided at spaced-apart locations along said
guide rails of said second table top;
b. pivotal arm boards are removably attached to said second table
top near the forward end thereof.
4. Apparatus according to claim 1 wherein said head board portion
is non-angulating.
5. Apparatus according to claim 1 wherein said retaining means
includes downwardly extending arms attached to the rearward end
portions of said guide rails of said second table top.
6. Apparatus according to claim 1 wherein said guide rails of said
second table top includes strips of plastic material inserted into
the undersurface of said guide rails in position to contact the
flat upper surface of said first table top panel.
Description
FIELD OF THE INVENTION
This invention relates to an X-ray table assembly of the type
having a table base or pedestal on which is mounted a table top
which is movable elevationally and also longitudinally and
transversely on the table base.
SUMMARY OF THE INVENTION
The object of the present invention is to provide an improved X-ray
table assembly of the above type having particular usefulness in
neuro work.
A further object is to provide an improved apparatus of the
foregoing type which may be advantageously used for trauma as well
as for neuro and other work.
The foregoing objects, as well as other objects which will become
apparent during the description which follows, are achieved by
providing a so-called top-within-top, that is, a second or upper
top in the form of a flat panel board which is slidable lengthwise
on the upper surface of a known form of flat table top which is
supported on a known form of table base or pedestal. The slidable
second or upper top is provided with means for attaching thereto
all accessories pertinent to the patient, so that the accessories
move with the patient. The second top has a narrow head portion at
its forward end, with sloping shoulder portions, thereby allowing
for close examination and X-ray photography of the head of the
patient when the second top is pulled forwardly out beyond the
under top and allowing for visual viewing of the patient when the
top is slid back over the under top with a separate viewing
apparatus located within and above the table top. These motions are
thus accomplished without physically disturbing the patient and
without physiological gear attached to the patient.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view showing a table base in
phantom having thereon a flat table top, and showing thereabove a
slidable upper panel or second top, and thereabove a patient pad
which fits on to the second top.
FIG. 2 is a plan view showing the slidable top on the flat under
top. The patient pad has been omitted.
FIG. 3 is a side elevational view looking along the line 3--3 of
FIG. 2.
FIG. 4 is an end elevational view, partly in section, looking along
the line 4--4 of FIG. 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to FIG. 1, a flat table top 20 is supported on a
cubical table base or pedestal 10 shown in phantom. Table base 10
may be equipped with an elevator mechanism for elevating the flat
table top 20 to an adjustable desired height. The table top 20 is
also movable on base 10 in both the lengthwise and transverse
directions, as indicated by the arrows in FIG. 1.
The construction of table top 20 is seen in elevation, and in
section, in FIG. 4. As there illustrated, table top 20 may comprise
a hollow frame formed by four metal channel members 21, which may
preferably be steel. A rectangular panel 22, which may preferably
be plywood, and which has a plastic laminate surface 23, such as
Formica, is supported on the metal frame 21. The longitudinal sides
27 of panel 22 are inclined at an angle, which may be of the order
of 45.degree..
Referring again to FIG. 1, secured to the sides of the longitudinal
channel members are four push-pull handles 26, two on opposite
sides at each end of the table top. Also secured to the sides of
the longitudinal channel members 21 are a pair of metal accessory
rails 24, one on each side of the table top. The rails 24 are
spaced from the sides of the channel members 21 by spacers 25, as
seen in FIGS. 2 and 4. Various accessories may be supported at
desired positions on rails 24 as by clamping blocks, not shown.
In accordance with the present invention, supported for sliding
lengthwise movement on flat table top 20 is a second top in the
form of a panel board 40 having at the forward end (the left end as
viewed in FIGS. 1 and 2) a head board 41. Panel board 40, which is
seen in elevation and in section in FIG. 4, may preferably consist
of a rectangular panel 41, preferably plywood, having on its upper
and edge surfaces a plastic laminate 42, such as Formica. Secured
to the under surface of panel 40, along opposite longitudinal edge
portions thereof, are metal guide rails 45. The outward portions 43
of the metal guide rails 45 are turned angularly downwardly at an
angle corresponding to that of the sides 27 of the panel 22 of the
under table top 20.
Each of the metal guide rails 45 is provided on its under surface
with first and second strips 46 and 47 of low friction material,
such as Teflon, which extend the full length of the panel board 40.
The one strip 46 is on the underside of the downwardly inclined
portion 43 of metal guide rail 45 adapted to engage the inclined
Formica surface 27 of the panel 22 of table top 20. The other strip
47 is on the underside of the guide rail 45 inward of the inclined
edge portion 27 and adapted to engage the upper surface 23
(Formica) of the panel 22.
Secured to each of the metal guide rails 45, at the rearward ends
thereof, is a metal mounting block 51, and secured to one of these
mounting blocks 51, the right-hand block in the illustration, is a
receptacle 52 which receives a plug 53 at the terminal end of a
ground cable 54.
Cut into the underside of the panel board 40 is a transverse groove
50 which receives a metal ground strap 49 which extends between and
interconnects a pair of ground blocks 48 mounted on the metal guide
rails 45. Thus, the left-hand metal guide rail 45 is connected to
ground through the ground block 48, ground strap 49, righthand
guide rail 45, mounting block 51, receptacle 52, plug 53, and
ground cable 54.
Secured at spaced-apart intervals to each of the metal guide rails
45 are handles 62 which may preferably be of the folding type and
which are used for several purposes. These handles are used for
manual pick up and carry of panel board 40, with or without a
patient thereon. They are also used for pushing and pulling the
panel board 40 in the lengthwise directions on flat table top 20
guided by the guide rails 45. And through these handles 62 are
passed the patient retention straps, as indicated in phantom in
FIG. 1.
Also secured to each of the metal guide rails 45, at spaced-apart
intervals, are basic blocks 63 to which special accessories may be
secured, either directly or by means of intervening adaptors. A few
examples are shown in FIG. 1. One example is pole-block 64 secured
to one of the basic blocks 63. This block 64 is used for supporting
an I.V. pole 65 on which brackets 66 may be fastened for supporting
bottles of intra-venous solutions. To another of the basic blocks
63, a sterile instrument tray (not shown) may be mounted. To
another, a patient monitoring device clamp fixture (not shown) may
be mounted. These are but some of the accessories which may be
mounted on the basic blocks 63, as needed.
Secured to metal guide rails 45 at the forward ends thereof are a
pair of pivotal arm boards 67 which may be supported in arm-board
mounts 68 seen in FIGS. 1 and 2. Each arm board 67 is pivotally
secured to bracket 69 having extending rearwardly therefrom a pin
70 having thereon a post 71. Pin 70 is received within a slot of
the arm board mount 68 and is secured as by a set screw. The arm
board is maintained in horizontal position by post 71 which bears
against one edge of the slot.
Also secured to metal guide rails 45, on each side of the panel
board 40, is an accessory rail 73 to which a patient restraining
handle 75 may be clamped, as by a basic clamp block 74. By
adjustment of the position of clamp blocks 74, the handles 75 are
adjustable to accommodate to the particular patient who is being
examined on the panel board 40. Arm restraint straps (not shown)
are ordinarily used in connection with the handles 75.
To prevent the panel board 40 from tilting downward at the forward
or head end when board 40 is pulled forwardly sufficiently to bring
the heavier upper portions of the patient beyond the forward edge
of the table top 20, a pair of restraining arms 78 are secured to
the rearward ends of the guide rails 45. Arms 78 have rollers 79 at
their lower ends which, when the panel board 40 is pulled or pushed
forwardly, are in a position to engage the under edge of the
accessory rails 24 in the event the panel board 40 should attempt
to tilt.
A patient pad 76 may be placed on top of the panel board 40, and
held in position by means of slotted handle-receiving retaining
tabs 77 which may be bonded to the borders of the pad 76.
The second top or panel board 40 is a versatile device and has a
number of useful purposes and advantages, as will now be briefly
discussed.
Its primary purpose is to function as a so-called top-within-top in
which it is slidable on flat table top 20. As such, it is
especially useful for neuro work. For neuro work, the panel board
40 bearing the patient is pushed or pulled forwardly to bring the
narrow head board 41 well out beyond the forward edge of flat table
top 20, so that the head of the patient may be closely examined and
X-ray photographs taken. This allows for improved flexibility of Ap
and Lateral film-changer positioning and Towne projection by
angling X-ray tube. Thereafter, the panel board 40 and its patient
may be returned with but very little effort from the film-changer
position to the amplifier viewing position without disturbing the
patient, thereby to bring the chest, abdomen, or other central or
lower portion of the patient to the X-ray amplifier viewing
position.
It will be understood that when the patient panel board 40 is moved
slidingly on the flat table top 20, the board 40 is guided by the
downwardly angled portions 43 of the guide rails 45. The
anti-friction (Teflon) strips 46 and 47 slide easily on the plastic
laminate (Formica) surface 23 of the plywood panel 22 of table top
20, and the patient board 40, with patient thereon, is easily
moved, as by pulling or pushing on the handles 62. Movement of the
board 40 stops almost instantly when the pulling or pushing force
is removed. It does not coast beyond its desired position as it
would if it were mounted on rollers or casters. Also, no locking
mechanism is required to lock the board 40 in place.
It is also to be noted that the entire patient area of the panel
board 40 is free of interfering metal, in both the extended and
non-extended positions. The retaining arms 78 prevent tilting of
the board 40 when extended forwardly. All accessories pertinent to
the patient may be attached directly to the sliding panel board 40,
and thus move with the patient. This latter feature provides a
second useful purpose for panel board 40. Previously, all
accessories had been attached, as by clamp blocks, to the accessory
rails 24 of the table top 20.
The second useful purpose for the patient panel support 40 referred
to above is in connection with emergency room and trauma work. For
example, in the case of a highway accident, the light weight panel
board 40 may be taken in the ambulance to the scene of the accident
and the injured person may be placed directly on the padded patient
panel board 40 which is then carried by handles 62 to the
anbulance. Upon arriving at the hospital, the patient board with
its patient may be carried into the hospital and placed on table
top 20 for X-ray or other examination. In the case of a major
disaster, with many injured waiting for treatment, the panel board
40 with its patient could be placed in a temporary location, as on
suitable supports provided in the halls or corridors of the
hospital, until the patient can be accomodated in the X-ray room,
or elsewhere.
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