Field of the Invention
[0001] This invention relates to lifting slings for use with invalid hoists, and is particularly
concerned with one-piece lifting slings for this purpose. Such slings support the
back and thighs of a patient and are suspended from the hoist by suspension means
which are readily attached to and detached from the hoist.
[0002] Such one-piece lifting slings are formed from flexible material, normally a synthetic
textile fabric, which conforms to the shape of the body of the patient. Four-point
attachment of the suspension means is normally required, two at the sides of the sling
in the shoulder region and two others at the bottom end of the sling. In some instances,
attachments from the hip regions of the patient may also be required and the term
"four-point suspension means" as used herein is accordingly to be interpreted as including
suspension means at at least four points.
[0003] One prior form of sling, for use with a hoist having a hanger with fixing studs,
is described in British Patent Specification No. 2 195 978 and includes connecting
elements in the form of key-hole plates which hook on to the fixing studs. Such an
arrangement is, however, not suitable for use with a hoist having a coat-hanger type
support for the sling.
[0004] It is thus not unknown for a patient to be fitted with two different slings at the
same time, to enable him or her to be lifted by means of different types of hoist.
[0005] It is accordingly an object of the present invention to provide an improved form
of sling having attachment means which is such that the sling can be attached to more
than one kind of hoist.
Summary of the Invention
[0006] According to the present invention there is provided a lifting sling for use with
invalid hoists, which sling includes a main body portion which is shaped to support
the back and thighs of a patient and is provided with four-point suspension means
as defined, two at the sides of the sling in the shoulder region and two at the bottom
end of the body portion of the sling, characterised in that the material forming each
of said suspension means has a plurality of elongated slots for attachment either
to a hoist having lifting studs or to a hoist having a coat-hanger type support.
[0007] There are preferably at least three elongated slots in each suspension means.
[0008] Each suspension means is preferably formed from webbing and each elongated slot is
preferably in the form of a button hole.
[0009] The webbing forming each suspension means may be of double thickness for at least
the part(s) in which the button-hole slot(s) is or are formed. The webbing is preferably
of double thickness throughout the length of each suspension means and the parts of
the webbing between the button holes are preferably connected together, for example,
by sewing, but with a layer of contrast material wrapped around the two thicknesses
of the webbing, i.e. a material of a colour which contrasts with that of the webbing.
The layers of contrast material wrapped around the two thicknesses of the webbing
are preferably of different colours for ease of identification of the individual button-hole
slots.
[0010] The free end portion of each suspension means, i.e. the end thereof remote from the
body portion of the sling, preferably provides a hand-grip which can be grasped to
facilitate use of the sling.
Brief Description of the Drawings
[0011]
Figure 1 shows a sling in accordance with the invention being used for lifting a patient
by means of a hoist having fixing studs,
Figure 2 shows the sling of Figure 1 being used for lifting a patient by means of
a hoist having a coat-hanger type support, and
Figure 3 is an underneath view of the sling.
Description of the Preferred Embodiment
[0012] Figure 1 of the drawings shows the sling 10 being used in combination with a known
type of hoist 11, which includes lifting by means of fixing studs, whereas Figure
2 of the drawings shows the sling 10 being used with another known type of hoist 12,
which includes a coat-hanger type support 13.
[0013] The sling 10 is shown in Figure 3 and includes two quilted leg areas 14, to each
of which a suspension means 15 is attached. The quilted leg areas 14 fit between the
legs of the patient and provide padded support for the patient's legs. The lower part
16 of the main body portion of the sling 10 is formed with a number of darts (as shown
in Figure 3) so that the shape of the sling 10 conforms to that required to fit comfortably
to the trunk of the patient, so as to support the back and thighs of the patient.
[0014] The upper part 17 of the main body portion of the sling 10 includes a layer of thick
wadding positioned to support the head and neck of the patient. Adjustable straps
18 are positioned one on either side of the layer of wadding at upper part 17 such
that, by appropriate adjustment of the lengths of the straps 18, the upper part 17
of the main body portion of the sling 10 can be caused to conform to the shape of
the head and shoulders of the patient.
[0015] A suspension means 15 is also attached to each side of the main body portion of the
sling 10 in the shoulder region, i.e. just at or below a position corresponding to
that of a shoulder of the patient, to provide a total of four suspension points. In
some instances (not shown in the drawings) two additional suspension means may be
provided, one attached to each side of the sling 10 at positions corresponding to
the hips of the patient.
[0016] Each suspension means 15 is formed from webbing and, in particular, from commercially
available webbing which has a series of button holes extending along its centre line.
The webbing is folded in two and the two thicknesses of webbing are then sewn together
at the positions 19 indicated by the "X's" in Figure 3. Before sewing together the
two thicknesses of webbing, contrast material is wrapped around the two thicknesses
of webbing, such contrast material being of different colours, for ease of slot identification.
[0017] As will be seen, each of the suspension means 15 includes four button-hole slots
20A, 20B, 20C and 20D which have not been sewn up. The contrast material located inwardly
of each of the slots 20D will be of one colour, for example, blue, while the contrast
material located outwardly of each of the slots 20D will be of another colour, for
example, red, while the contrast material located outwardly of each of the slots 20C
will be of a third colour, for example, yellow. The contrast material located outwardly
of each of the button-hole slots 20B will be of a fourth colour, for example, green,
and the contrast material located outwardly of the slots 20A will be of a fifth colour,
for example, black.
[0018] The lengths of the button-hole slots 20A, 20B, 20C and 20D are such that, when it
is desired to attach the sling 10 to a hoist having fixing studs, the studs can be
passed through the appropriate button-hole slots 20A, 20B, 20C or 20D.
[0019] Each of the suspension means 15 terminates in a double-thickness portion around which
the contrast material is wrapped so that a hand-grip 21 is provided. The arrangement
is thus such that, when it is desired to attach the sling 10 to a hoist having a coat-hanger
type support, it is possible to use the hand-grips 21 when engaging the appropriate
button-hole slots 20A, 20B, 20C or 20D with the support. The hand-grips 21 can also
be used to facilitate handling of the sling 10, particularly when attaching the sling
10 to a hoist having studs (as shown in Figure 1) or when detaching the sling 10 from
the hoist.
[0020] When the sling 10 is attached to a hoist, it is necessary that the lengths of the
suspension means 15 should be the same, i.e. that each of the suspension means 15
should be attached to the hoist using the same button-hole slots 20A, 20B, 20C or
20D. Identification of the slots 20A, 20B, 20C and 20D is facilitated by the use of
the different colours for the contrast materials sewn around the two thicknesses of
webbing. These thus provide a readily visible colour coding for ensuring correct positioning
of the patient.
[0021] A modesty strap 22 is attached to one of the quilted leg areas 14 for engagement
with the other quilted leg area 14 so as to hold the two leg areas 14 together and
thereby prevent inadvertent separation of the patient's legs.
[0022] It will be appreciated that, for an authority or hospital having hoists of different
types, i.e. some as shown in Figure 1 and others as shown in Figure 2, the sling 10
of the present invention will offer substantial advantages since any of the patients
who require lifting can be provided with a single sling which can then be used in
conjunction with any of the hoists.
1. A lifting sling (10) for use with invalid hoists, which sling (10) includes a main
body portion which is shaped to support the back and thighs of a patient and is provided
with four-point suspension means (15) as defined, two at the sides of the sling (10)
in the shoulder region and two at the bottom end of the main body portion of the sling
(10), characterised in that the material forming each of said suspension means (15)
has a plurality of elongated slots (20A, 20B, 20C and 20D) for attachment either to
a hoist (11) having lifting studs or to a hoist (12) having a coat-hanger type support
(13).
2. A lifting sling as claimed in Claim 1, characterised in that there are at least three
elongated slots (20A, 20B, 20C, 20D) in each suspension means (15).
3. A lifting sling as claimed in claim 2, characterised in that each suspension means
(15) is formed from webbing.
4. A lifting sling as claimed in Claim 3, characterised in that each elongated slot (20A
20B, 20C, 20D) is in the form of a button hole.
5. A lifting sling as claimed in Claim 4, characterised in that the webbing forming each
suspension means (15) is of double thickness for at least the parts in which the button-hole
slots (20A, 20B, 20C, 20D) are formed.
6. A lifting sling as claimed in Claim 4, characterised in that the webbing forming each
suspension means (15) is of double thickness throughout its length.
7. A lifting sling as claimed in Claim 5 or Claim 6, characterised in that the parts
of the webbing between the button hole slots (20A, 20B, 20C, 20D) are connected together,
with a layer of contrast material wrapped around the two thicknesses of the webbing.
8. A lifting sling as claimed in Claim 7, characterised in that the layers of contrast
material wrapped around the two thicknesses of webbing are of different colours for
ease of identification of the individual button-hole slots (20A, 20B, 20C, 20D).
9. A lifting sling as claimed in any one of the preceding claims, in which each suspension
means (15) has a free end portion which forms a hand-grip (21).