U.S. patent number 3,851,870 [Application Number 05/359,339] was granted by the patent office on 1974-12-03 for surgical operation table.
This patent grant is currently assigned to Matburn (Holdings) Limited. Invention is credited to Ronald Joseph Cook.
United States Patent |
3,851,870 |
Cook |
December 3, 1974 |
SURGICAL OPERATION TABLE
Abstract
A surgical operation table has a table top comprising a main
section mounted on a frame so as to be slidable lengthwise of
itself, a lower trunk section which can be mounted on the frame
adjacent an end of the main section but which can be removed from
the frame as desired, and a leg section, The leg section is secured
in slots in the main frame so that it can be moved from a working
position in which it is adjacent to an end of the lower trunk
section and a storage position beneath the main section.
Inventors: |
Cook; Ronald Joseph (London,
EN) |
Assignee: |
Matburn (Holdings) Limited
(London, EN)
|
Family
ID: |
10203697 |
Appl.
No.: |
05/359,339 |
Filed: |
May 11, 1973 |
Foreign Application Priority Data
|
|
|
|
|
May 22, 1972 [GB] |
|
|
23935/72 |
|
Current U.S.
Class: |
5/618; 5/601;
5/620; 297/423.33; 297/423.24 |
Current CPC
Class: |
A61G
13/08 (20130101) |
Current International
Class: |
A61G
13/00 (20060101); A61G 13/08 (20060101); A61g
013/00 () |
Field of
Search: |
;269/322-326
;297/430 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Lake; Roy
Assistant Examiner: Abrams; Neil
Attorney, Agent or Firm: Liberman; William R.
Claims
What I claim is:
1. trunk surgical operation table comprising a base, a pedestal,
and a table top receiving frame supported on the pedestal, the
table top comprising a main body section, a lower trunk section,
and a leg section, the body, turnk and leg sections being coplanar,
the main body section and the leg section being permanently engaged
to the table top frame, the lower trunk section being readily
removable from between the main body section and the leg section of
the table top, the main body section being reciprocably movable
towards and into the space vacated by the lower trunk section on
removal thereof, the leg section being swingable about its
permanent engagement to the table top frame from a position
normally coplanar with the main body section to a position at right
angles thereto or selectively to storage position below the main
body section and wherein the table top supporting frame includes a
pair of downwardly extending brackets on opposite sides thereof,
slots in the brackets extending downwardly and rearwardly of the
table top, and the leg section is provided with laterally extending
pins at the end thereof proximate the body section, the pins being
engaged to the slots and slidable therealong.
Description
BACKGROUND OF THE INVENTION
The surgical operation table of the present invention is, while
capable of general use, particularly suitable for specialised use
in gynaecological and urological operations. In such operations,
the surgeon works at one end of the table and the legs of the
patient are supported above the level of the table top. It is
obviously desirable that the buttocks and perineum of the patient
be supported as close as possible to the working end of the table
top as the area of table top projecting beyond the patient towards
the surgeon should be as small as possible to avoid interference
with the work of the surgeon. The present invention aims at making
this possible. The invention also seeks to provide a table with
which the amount of lifting of a patient by operation theatre staff
is reduced as compared with that required when using known
tables.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
FIG. 1 is a perspective view of a surgical operation table
according to the invention,
FIG. 2 is an elevation of a slightly modified table,
FIGS. 3 and 4 are detail views illustrating a locking mechanism,
and
FIGS. 5 and 6 are further detail views.
In the drawings similar parts are designated by the same
references.
DESCRIPTION OF PREFERRED EMBODIMENTS
In the illustrated embodiments of the invention, a surgical
operation table comprises a base 1 carrying a patient-supporting
platform or table top T. Any suitable means are provided for
enabling the table top to be arranged at any desired height with
respect to the base. For example, the height can be adjusted by a
conventional hydraulic means operated by a pedal 2.
The table top 1 is carried by a metal support frame F including
side plates 3 at opposite sides of the table. The table top is
composed of three sections arranged adjacent to one another in end
to end relationship, namely a main section 4 arranged to support
the head and upper part of the trunk of the patient, an
intermediate or lower trunk or lower trunk section 5 and a leg
section 6. If desired the main section 4 may (as shown in FIG. 2)
itself be composed of two sections, namely the upper trunk section
4 and a separate head section 7 removably fitted to the end of the
trunk section 4 remote from the lower trunk section 5. The
construction of the table of FIGS. 1 and 2 is exactly the same
except for the provision of the additional and separate head
section in the FIG. 2 construction. If desired, all of the various
sections of the table top may be made of an X-ray translucent
material.
The intermediate lower trunk section 5 is removably supported on
the main frame F so that it can be simply lifted off when it is not
required. The main section 4 is slidably mounted on the main frame
F as it is arranged to run on wheels 4a (one of which is
illustrated in FIG. 5) so that it can be moved lengthwise of
itself. Thus, when the removable lower trunk section 5 is lifted
off the main frame, the main section 4 can be moved lengthwise into
the space vacated by the lower trunk section as shown in FIG.
2.
A spring-loaded or other suitable locking means accessible from one
side of the table is provided to enable the main section to be
fixed in any desired longitudinal position relative to the main
frame. This locking means is conveniently in the form of a locking
pin 8 (FIGS. 3 and 4) slidable in the main section 4 into and out
of engagement in the hole 9 in the frame F. The pin can be moved in
and out of the hole by means of a knob 10. When the pin is
disengaged from the hole 9 against the action of a spring 14 the
section 4 is free to slide. A disc 11 is fitted to the inner end of
the pin 8 and when the section 4 is tilted from the horizontal into
the so-called Trendelenburg position it will engage the inside of
the frame F to prevent accidental withdrawal. There is sufficient
play to enable the disc 11 to be withdrawn through the hole 9 when
the section 4 is horizontal.
The leg section 6 of the table top is fixed to the main frame in
such a way that, when it is not required, it can be slid beneath
the main section to the position shown in broken lines in FIG. 2.
For this purpose, the leg section 6 is secured to a mounting bar 12
extending transversely of the table top. This mounting bar 12 is
provided with wedge-shaped retaining blocks 13 (FIG. 6) which
engage in sockets of complementary shape in the main frame to
retain the mounting bar in position. Retaining means other than
wedge-shaped blocks and sockets can be used if desired. The
mounting bar 12 also has extensions or runners at each end, i.e.,
at each side of the main frame, and each of these runners is
located in one of two identical guide slots S in the two side
plates 3 of the main frame. Each guide slot S includes a vertical
portion 15 at the bottom of which one of the runners is located
with the leg section 6 is in its position of use and with the
wedge-shaped blocks engaged in their associated sockets. These
vertical portions 15 of the guide slots lead from the top to
intermediate portions 16, 17 which themselves lead to horizontal
portions 18, extending a major part of the length of the side
plates 3. Thus, when the leg section is not required, the leg
section is first lifted in the vertical portions of the guide slots
to disengage the wedge-shaped blocks from their sockets and the
runners are then caused to slide in the guide slots (and while
remaining captive in them) until the runners are located in the
horizontal portions 18 of the guide slots. The leg section will
then be located in a docked position beneath the main section.
Means are provided for holding the leg section in a horizontal
position when it is beneath the main section. In a convenient
arrangement, a support bracket 26 covered with a low friction
material extends beneath the side plates in a position such that a
portion of the bottom of the leg section can rest on the bracket 26
to prevent it swinging down. If desired, the leg section can be
used as a shelf when in the docked position beneath the main
section. If the table is to be used with a fluroscope the section 6
can be positioned to hang vertically from the slots S as also shown
in FIG. 2.
The two runners on the mounting bar 12 are provided with locking
screw knobs 19 which can be tightened against the main plates 3 to
prevent movement of the runners in the guide slots.
The leg section has a hinged connection with its mounting bar and
any suitable means such as a stay 20 can be provided for holding
the leg section at a desired inclination with respect to the main
section when it is in its position of use.
The main frame is also provided with a support 21 for an X-ray
cassette tray 22 beneath the table top. The main frame is provided
with suitable openings to enable a cassette tray to be loaded from
either side or either end of the table as desired.
Side bars 23 are provided on each side of the main section 4 to
enable lithotomy stirrups or other equipment to be secured to the
table.
When the table is ready for normal use, the main section,
intermediate or lower trunk section and leg section are arranged
end to end to provide a table top of normal length as shown in FIG.
1. Conveniently, two mattresses 24, 25 are arranged on the table
top, one mattress being arranged on the main section and a second
one being arranged on both the lower trunk section and leg section.
When it is desired to make the table ready for gynaecological or
urological operations the patient is placed on the table top and
anaesthetised. The legs are then lifted on the lithotomy stirrups
so as to raise them clear of the lower trunk section 5. The lower
trunk section 5 is then lifted off the main frame complete with its
mattress which also covers the leg section. The locking screw knobs
19 of the leg section are then unscrewed and the leg section is
then lifted in the vertical position of the guide slots to
disengage the wedge-shaped blocks on the mounting bar from the
wedge-shaped sockets in the main frame. The leg section is then
slid beneath the main section. Finally, the main section is then
slid lengthwise into the space vacated by the removal of the lower
trunk section.
* * * * *