TECHNICAL FIELD OF THE INVENTION
[0001] The invention relates to an assist device for pulling on and off compression stockings,
in particular therapeutic compression stockings. The invention likewise relates to
a method for pulling compression stockings on and off while making use of the device.
BACKGROUND OF THE INVENTION
[0002] A therapeutic compression stocking is frequently applied as medical aid for users
with varicose veins and other vascular problems. For a good therapeutic effect the
compression stocking must exert pressure on the leg with a determined tensioning force.
Owing to the desired tensioning force the user encounters problems when pulling on
and pulling off the compression stocking, this requiring sufficient strength and mobility
of the user. It is however precisely in this respect that the user group is often
limited, for instance due to advanced age, illness, limited mobility or disorders
of the support and locomotion system.
SUMMARY OF THE INVENTION
[0003] The invention has for its object to provide an assist device for pulling on and off
compression stockings, in particular therapeutic compression stockings, more easily.
[0004] According to the invention this object is achieved by an assist device comprising
a pair of elongated support poles, each with a proximal end and a distal end, wherein
the support poles are joined at their proximal end by a grip member and at their distal
end each comprise a stocking expanding element forming an adjacently placed pair over
which an compression stocking can be arranged, wherein the grip member comprises a
spring element configured to move the distal ends of the support poles under bias
towards and away from one another in a transverse direction. Preferably, the initial
spring force experienced when moving the distal ends towards one another differs from
the initial spring force experienced when moving the distal ends away from one another.
[0005] The initial spring force is the force that is needed to perform the indicated movements
starting from a state of rest in which the assist device is not solicited.
[0006] In an embodiment the spring element is configured such that the initial spring force
experienced when moving the distal ends towards one another is smaller than the initial
spring force experienced when moving the distal ends away from one another.
[0007] The invented assist device allows bringing the poles relatively easily towards one
another to mount a compression stocking on the device. In the same time, the device
offers sufficient spring force against the elastic energy stored in the stocking applied
to the device. This prevents a too high force around the leg.
[0008] The assist device is particularly suitable for users with reduced mobility, possibly
in combination with decreased strength. Only a limited degree of mobility is expected
of the user, for instance in that he/she is able to reach his/her ankle when bending
at the hip and knee.
[0009] According to another embodiment of the invention, the spring element is configured
such that the spring force experienced when moving the distal ends towards one another
increases from the initial spring force to an end spring force larger than the initial
spring force. This is particularly useful since unnecessary high levels of pressure
exerted by the (expanding elements of) device on the leg are counteracted.
[0010] The assist device according to the invention is suitable for pulling a compression
stocking on and off under the knee, wherein the compression stocking can have an open
as well as a closed toe piece.
[0011] In the context of the present application the terms proximal, distal, frontal and
sagittal are defined in relation to a user who is standing upright (or sitting upright
during use) and holding the assist device in upright position at the grip member of
the assist device. This position of the assist device is referred to in the context
of this application as the tensioning position of the assist device. In a stocking
tensioning position of the device, the distal ends of the support poles carrying the
expanding elements are located on or close to a substrate such as the ground. A frontal
plane is defined in the usual manner as a plane extending transversely (from left
to right) of the body of the user or of the assist device. A sagittal plane is defined
in the usual manner as a plane extending in the direction of view of a user (from
the back to the front). A sagittal plane of the assist device extends perpendicularly
of a frontal plane of the assist device.
[0012] In an embodiment of the invention the assist device has the feature that the support
poles do not bend when moving the distal ends of the support poles under bias towards
and away from one another in the transverse direction. The bending stiffness of the
poles is preferably such that the operation of the device does not depend on bending
of the poles, and this bending stiffness preferably is at least 2 times larger than
the bending stiffness of the grip member comprising the spring element, more preferably
at least 5 times larger than the bending stiffness of the grip member comprising the
spring element, even more preferably at least 10 times larger than the bending stiffness
of the grip member comprising the spring element. Bending is defined around an axis
lying in the sagittal plane (or perpendicular to a frontal plane).
[0013] The spring element of the assist device may be made as a separate piece from the
grip member. A practical embodiment of the invention however provides a device in
which the spring element is integrally formed with the grip member, for instance by
injection molding or by compression molding.
[0014] The spring element may be positioned vis-a-vis, or within, the grip member at any
position. It is for instance possible to position the spring element close to one
side pole attachment to the grip member. Another embodiment may provide two spring
members positioned at each side pole attachment to the grip member. In a preferred
embodiment, the assist device comprises a spring element positioned at a center position
of the grip member, and more preferably at equal distance (in the frontal plane) from
the side poles.
[0015] Another useful embodiment provides an assist device wherein the spring element is
covered with a flexible sleeve, preferably long enough to accommodate a hand's width.
In this embodiment at least part of the covered spring element forms a handle with
which the assist device can be safely gripped with at least one hand. The handle preferably
extends in a frontal plane.
[0016] Another embodiment of the invention provides an assist device wherein the grip member
has a height and the spring element comprises a portion of the grip member having
a reduced height. Such an embodiment allows forming the spring element and the grip
member in one piece and conveniently provides a bending stiffness of the spring element
that is reduced vis-a-vis the bending stiffness of the grip member.
[0017] In yet another embodiment of the assist device, the spring element has a height and
has an asymmetrical shape with respect to a line extending at half height. The bending
stiffness in this embodiment may then be different, depending on the direction of
the bending in a frontal plane.
[0018] Yet another embodiment of the invention is provided by an assist device wherein the
spring element comprises a number of deformable wall parts extending substantially
in a height direction of the spring element, and arranged parallel to each other in
a length direction of the spring element. The deformable wall parts may be solicited
when bringing the side poles towards one another thereby bending the grip member and
in particular the spring element. The deformation of the wall parts stores elastic
energy that is released again when the side poles are allowed to return to their position
of rest, i.e. without any soliciting force on these poles. The spring element is this
embodiment performs somewhat equal to a bellows.
[0019] Another further improved embodiment of the assist device is characterized in that
the deformable wall parts comprise projections. The projections are wall parts that
extend out of the plane of the deformable wall parts. The height of the projections
may be adjusted as further elucidated below.
[0020] According to an embodiment, an assist device is provided wherein the projections
do not contact each other in the rest position and/or in an initial position corresponding
to soliciting the device with the initial spring force.
[0021] In another embodiment, the projections of the assist device have such height that
the projections contact each other when moving the distal ends of the side poles towards
one another over a certain transverse distance. The latter distance is predetermined
and for instance depends on the particular size of the device, on the type of compression
stockings to be used, their compression classification, etc.
[0022] When bringing the distal ends of the side poles further towards one another, the
(contacting surfaces of the) projections come closer until, in yet another embodiment
of the invention, substantially all the projections contact each other when moving
the distal ends towards one another over an end transverse distance, corresponding
to an end spring force. This end spring force may be designed such that the side poles
may not be brought further to one another, either by hand, or by the compression stockings
provided on the device.
[0023] In another useful embodiment, an assist device is provided wherein deformable wall
parts of the spring element are mutually connected through curved wall parts, arranged
at an underside of the spring element. The wall parts then form smoothly curved elements
that minimize the risk of entrapping skin when holding grip member, even in an embodiment
without sleeve.
[0024] The expanding elements provided at distal ends of the side poles may have any form
suitable for the attachment of compression stockings. An embodiment of an assist device
wherein the stocking expanding elements are placed at a distance from the support
poles in a sagittal plane of the assist device by means of spacers has the advantage
that neither the support poles nor the grip member are at risk of coming into contact
with the shinbone during use of the assist device.
[0025] A further embodiment according to the invention relates to an assist device wherein
first stocking expanding elements are directed toward the proximal outer end and second
stocking expanding elements toward the distal end, thus forming S-shaped spoon elements.
[0026] The stocking expanding elements of the assist device can in principle take any form.
It is thus possible for instance that they are embodied in the form of ball-like elements,
for instance made of rubber, arranged on a spacer. A practical embodiment provides
an assist device with support poles which each comprise at the distal outer end a
spoon element, the outer ends (or spoons) of which form the stocking expanding elements
and the middle part of which forms a spacer. The spoons preferably take a flat and
to some extent curved form, thereby creating a slightly concave inner surface which
fits onto the shape of the lower leg. The contours of the spoons are preferably round
and blunt so that an compression stocking can be tensioned thereover without appreciable
risk of damage, for instance due to excessive local stretching.
[0027] In yet another embodiment the assist device has the feature that the grip member
comprises jackets for releasably receiving the proximal ends of the support poles.
This embodiment allows for easy transport, during which the device may be carried
in disassembled form.
[0028] A practical embodiment provides an assist device wherein the releasable connection
between the support poles and the sleeves comprises a locking pin that engages in
aligned wall openings of the jacket and a support pole, is held in a locking position
by means of a spring and can be pushed into an unlocking position in which the locking
pin leaves the wall opening of the jacket clear. This is for instance helpful for
carrying the device into a suitcase when travelling. It may be helpful to provide
support poles with telescopically extendable parts.
[0029] The invention also relates to a method for pulling a compression stocking on a leg.
The method comprises the steps of
- a) providing an assist device according to the invention;
- b) moving the distal ends of the support poles under bias towards one another in a
transverse direction and apply an compression stocking over the stocking expanding
elements, thereby forming an opening for a foot;
- c) inserting the foot into the opening;
- d) moving the assist device in the proximal direction, wherein the compression stocking
is moved together with the stocking expanding elements along the lower leg towards
the knee and into the desired position; and
- e) remove the stocking expanding elements from the compression stocking.
[0030] Another embodiment of the method has the feature that a flexible body made of a smooth
material with low frictional resistance is introduced into the opening prior to insertion
of the foot. Such a flexible body is for instance known from
NL 8902619 and preferably comprises a flexible tube-like peripheral body of a smooth material
with an insertion end for a foot, the peripheral body being provided with a lining
of a smooth material. The lining is attached to the peripheral body at the position
of the insertion end and can otherwise be moved freely relative to the peripheral
body from an inward folded position, in which the lining is situated in the peripheral
body, to an outward folded position in which the lining is situated outside the peripheral
body. Such a flexible and smooth body makes the sliding of a compression stocking
along a surface considerably easier in that the body arranged between stocking and
surface perceptibly reduces the friction forces. It is noted that the flexible body
need in no way be tube-like. A single strip of flexible smooth material can also suffice,
for instance a strip which is slightly longer than the compression stocking and has
a width of about 15 cm.
[0031] In an embodiment, the device may be used in conjunction with a rubbing mat, for instance
a (foam) rubber or silicone mat of some thickness, preferably at least 5 to 10 mm.
[0032] In an embodiment which comprises first stocking expanding elements directed toward
the proximal outer end and second stocking expanding elements toward the distal end,
thus forming S-shaped spoon elements, the shape of the spoon elements allows a whole
foot to rest on the mat such that the foot in this position is able to slide over
the mat while being accommodated in the opening of a compression stocking provided
and stretched on the spoon elements. There is therefore no need to lift and stretch
the foot to insert toes in the opening of the compression stocking.
[0033] The device assists merely in holding the compression stocking in place, and there
is no need to pull on the stocking to bring it further along the leg. Instead, by
sliding the foot provided with the compression stocking around it, over the rubbing
mat in a repeated movement, the foot further slides into the compression stocking
provided around the spoon elements. This process may be repeated until the compression
stocking extends over the heel, and completely surrounds the foot.
[0034] By loosely pulling the device upwards by the grip member, which requires relatively
little force, the compression stocking is pulled up further along the lower leg until
about halfway. In that positon, the compression stocking may be released from the
spoon elements and pulled up further by hand.
[0035] In an embodiment that makes use of a flexible smooth body having a tension loop,
the loop of the body may protrude from a toe portion of the compression stocking.
To remove the smooth body, the loop may be provided around spoon elements of the device
and these are then used to pull the smooth body from underneath the compression stocking.
[0036] The rubbing mat also allows performing some positional corrections, for instance
in case the compression stocking is slightly turned.
[0037] A rubbing mat may also be used when removing the compression stocking from a leg.
[0038] The invention likewise relates to a method for pulling a compression stocking off
a leg, comprising the steps of
- a) providing an assist device according to the invention;
- b) attaching the stocking expanding elements to a compression stocking arranged around
the leg by positioning the stocking expanding elements under an upper edge of the
compression stocking;
- c) moving the assist device in the distal direction, wherein the compression stocking
is moved together with the stocking expanding elements along the lower leg towards
the foot;
- d) peeling off the compression stocking over the foot until it is free from the foot;
and
- e) removing the stocking expanding elements from the compression stocking.
[0039] The assist device according to the invention need not be adjusted at all for the
purpose of pulling off compression stockings as according to the above stated method.
The dual functionality of the assist device, among other reasons because of the presence
of the extension means, provides a great advantage for the user.
[0040] Finally, it is stated that the embodiments of the invention described in this patent
application can be combined in any possible combination of these embodiments, and
that each embodiment can individually form the subject-matter of a divisional patent
application.
BRIEF DESCRIPTION OF THE FIGURES
[0041] The invention will now be further elucidated on the basis of the exemplary embodiments
shown in the figures, without otherwise being limited thereto. Herein:
Fig. 1A is a schematic perspective view of an embodiment of the assist device according
to the invention provided with a sleeve;
Fig. 1B is a schematic perspective view of the embodiment shown in figure 1A without
the sleeve and showing the spring element;
Fig. 2 represents a schematic perspective view a grip member comprising a spring element
in accordance with the embodiment shown in figure 1B;
Fig. 3 is a schematic front view of the grip member shown in figure 2 coupled to a
pair of support poles;
Fig. 4 is a schematic perspective detailed view of the spring element of the grip
member shown in figures 2 and 3; and finally
Fig. 5 is a schematic cross-sectional view of a releasable connection between the
grip member and a support pole in accordance with an embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
[0042] Figure 1 shows an assist device 1 for pulling on and off a compression stocking in
a rest position. Assist device 1 is shown in a horizontal position whereas in use
the device is generally held in an upright position. For the relative positioning
of the assist device components, reference is made in the context of this description
to a sagittal plane 2 and a frontal plane 3 running at a right angle thereto in accordance
with the planes defined in a user. Indeed, a frontal plane of a user extends from
shoulder to shoulder, whereas a sagittal plane extends perpendicular to the frontal
plane. Assist device 1 comprises a pair of elongated support poles (5a, 5b) running
in a longitudinal direction 4 and having a length that can vary in accordance with
the user. The support poles (5a, 5b) preferably have a low specific weight and are
for instance made of aluminium, which is optionally anodized in the desired colour.
The anodizing helps to prevent the aluminium giving off black residue onto body and
clothing. Each support pole (5a, 5b) has a proximal end (7a, 7b) and a distal support
end (8a, 8b).
[0043] The support poles (5a, 5b) are joined at their proximal end (7a, 7b) by a grip member
6. For the purpose of arranging the compression stockings the support poles (5a, 5b)
are each provided at the distal end (8a, 8b) with a spoon element (13a, 13b), the
outer ends (the spoons) of which form stocking expanding elements (14a, 14b, 15a,
15b). The middle portion of the a pair of spoon elements (13a, 13b) holds the stocking
expanding elements (14a, 14b, 15a, 15b) at a distance from support poles (5a, 5b)
in the sagittal plane 2 of assist device 1, and therefore forms a spacer for stocking
expanding elements (14a, 14b, 15a, 15b). Each spoon element (13a, 13b) comprises a
first stocking expanding element (15a, 15b) situated between the distal outer end
(8a, 8b) and pivoting connection 6. The a pair of first stocking expanding elements
(15a, 15b) form an adjacently placed pair over which an compression stocking (not
shown) can be arranged. Each spoon element (13a, 13b) is also provided with a second
stocking expanding element (14a, 14b) situated at the distal outer end (8a, 8b) of
each support (5a, 5b). The pair of second stocking expanding elements (14a, 14b) likewise
form an adjacently placed pair over which a compression stocking (not shown) can be
arranged. Spoon elements (13a, 13b) can for instance be connected to support poles
(5a, 5b) by means of a pin-hole connection or by means of gluing. If desired, the
spoons (14a, 15a, 14b, 15b) of spoon elements (13a, 13b) are provided on the inward
facing side or all around with inserts (not shown) of a relatively frictional material
such as for instance rubber.
[0044] The grip member 6 of the assist device 1 comprises a spring element 60, configured
to move the distal ends (8a, 8b) of the support poles (5a, 5b) under bias towards
and away from one another in a transverse direction 9 (parallel to the frontal plane
3). Preferably, the initial spring force experienced when moving the distal ends (8a,
8b) towards one another according to the arrows (12a, 12b) differs from the initial
spring force experienced when moving the distal ends (8a, 8b) away from one another
according to the arrows (11a, 11b).
[0045] In the embodiment shown in figure 1A, the spring element 60 is not visible because
it is concealed from view by a rubber sleeve 10 arranged over the spring element 60.
In the shown embodiment the rubber sleeve 10 forms a handle for the user.
[0046] The grip member 6 provided with a spring element 60 is shown in more detail in figures
2 and 3, whereas the spring element 60 itself is shown in more detail in figure 4.
In the embodiment shown, the spring element 60 is integrally formed with the grip
member 6 by injection moulding of a suitable plastic, and is positioned at a center
position of the grip member 6. The grip member 6 comprises a cross-element 61 having
a longitudinal direction 62 extending about parallel to the frontal plane 3. Provided
at the ends of the crossbar are two jackets (62a, 62b) for releasably receiving the
proximal ends (7a, 7b) of the support poles (5a, 5b). The spring element 60 is positioned
at a center position of the grip member 6, and in particular forms a central part
of the cross-element 61. End parts (63a, 63b) of the cross-element 61 are relatively
stiff compared to the spring element 60. To this end, parts (63a, 63b) are provided
with stiffening ribs 63c as shown. This not only provides sufficient bending stiffness
of parts (63a, 63b) about an axis 4 running perpendicular to a plane of the cross-element
61 and to the frontal plane 3 with the device in an upright position, but also provides
sufficient torsional stiffness to the device 1.
[0047] As shown in figure 5, the releasable connection between the support poles (5a, 5b)
and the jackets (62a, 62b) comprises a locking pin 11 that engages in aligned wall
openings 80 of the jacket (62a, 62b) and wall openings 50 of a support pole (5a, 5b).
The locking pin 11 is held in a locking position by means of a spring 110 and can
be pushed in the direction 111 into an unlocking position in which the locking pin
11 leaves the wall opening 80 of the jacket (62a, 62b) clear. In this position, each
pole (5a, 5b) may be slid out of the corresponding jacket (62a, 62b).
[0048] As shown in figure 4, the spring element 60 comprises a portion of the grip member
6 having a reduced height 64, relative to the (mean) height 65 of the grip member
6 and of the cross-element 61 in particular. Since the spring element 60 has an upper
rim that is thicker than a lower rim, the spring element 60 is configured such that
the initial spring force experienced when moving the distal ends (8a, 8b) towards
one another (according to arrows (70a, 70b) is smaller than the initial spring force
experienced when moving the distal ends (8a, 8b) away from one another according to
the arrows (71a, 71b).
[0049] As also, shown, the spring element 60 has a total height about equal to the height
65 of the cross-element 61 yet has an asymmetrical shape with respect to a line 66
extending at half height. The spring element 60 further comprises a number of deformable
wall parts 67 extending substantially in a height direction 68 of the spring element
60. The deformable wall parts 67 are arranged parallel to each other in a length direction
62 of the grip member 6 and spring element 60. The deformable wall parts 67 comprise
projections 69 that extend out of a plane of the deformable wall parts 67. Some wall
parts 69a extend outward whereas other projections 69b extend inward. Yet other projections
69c extend from the end parts (63a, 63b) of the grip member 6.
[0050] As shown in figures 3 and 4 in particular, the projections 69 do not contact each
other in an initial or rest position of the device 1, nor when the support poles (5a,
5b) are initially brought towards one another with a force corresponding to the initial
spring force.
[0051] Increasing the spring force in bringing the distal end (8a, 8b) of the support poles
(5a, 5b) towards one another will deform the deformable wall parts 67 until projections
69 or at least some of them contact each other when moving the distal ends (8a, 8b)
towards one another over a certain transverse distance. This distance is a design
consideration and can be chosen by varying the distance between the projections 69
and/or varying the stiffness of the wall parts 67.
[0052] Increasing the spring force still further causes substantially all the projections
69 to contact each other when moving the distal ends (8a, 8b) towards one another
over an end transverse distance, corresponding to an end spring force. The embodiment
described above yields a spring element 60 that is configured such that the spring
force experienced when moving the distal ends (8a, 8b) towards one another increases
from the initial spring force to an end spring force larger than the initial spring
force. This benefices the functionality of the device 1.
[0053] It is essential to the invention that the support poles (5a, 5b) do not substantially
bend when moving the distal ends (8a, 8b) of the support poles (5a, 5b) under bias
towards and away from one another in a transverse direction according to the arrows
(11a, 11b, 12a, 12b).
[0054] By pushing the support poles (5a, 5b) slightly inwards, the distal outer ends (8a,
8b) are moved inward by deformation of the spring element 60 as according to the arrows
(12a, 12b). Should the support poles (5a, 5b) be pulled slightly outwards, the distal
outer ends (8a, 8b) then move outward in a direction opposite to that of arrows (12a,
12b), i.e. according to arrows (11a, 11b).
[0055] As can be seen in figures 1A and 1B, first stocking expanding elements (15a, 15b)
are directed toward the proximal outer end (7a, 7b), while the second stocking expanding
elements (14a, 14b) are directed toward the distal outer end (8a, 8b). Because the
first and second stocking expanding elements point in opposite directions, spoon elements
(13a, 13b) take a substantially S-like form. The stocking expanding elements (14a,
14b, 15a, 15b) have a form which is substantially flat and to some extent curved,
whereby a more or less concave surface fitting onto the shape of the lower leg is
created on the inner side of stocking expanding elements (14a, 14b, 15a, 15b). Stocking
expanding elements (14a, 14b, 15a, 15b) are rounded and made somewhat blunt at the
corners so that a compression stocking can be tensioned there over without much risk
of damage due to excessive local stretching. Because the first stocking expanding
elements (15a, 15b) in the sagittal plane 2 form an angle of 120 degrees with the
longitudinal axis of the associated support (5a, 5b) and the second stocking expanding
elements (14a, 14b) in the sagittal plane 2 form an angle of 90 degrees with the longitudinal
axis of the associated support (5a, 5b), and are held a distance of 6 to 7 centimetres
from the support poles (5a, 5b), support poles (5a, 5b) or the grip member 6 are prevented
from coming into contact with the shinbone during use of the assist device 1.
[0056] The above described components of assist device 1 can be manufactured from any material
suitable for the purpose. Components such as the spoon elements (13a, 13b), grip member
6 and optionally sleeve handle 10 are thus preferably made by injection moulding of
glass fibre-reinforced plastic. Other components such as the fixing pins 11 and spring
110 are preferably made of steel, while support poles (5a, 5b) are typically made
of anodized aluminium.
[0057] Because assist device 1 consists of pre-assembled components, it can be easily assembled
or disassembled by a user. The division into components further ensures that assist
device 1 can be packaged, shipped and stored in compact form. This moreover provides
the option of length adjustment in accordance with build, height and reach, and adjustment
of the opening range of a compression stocking arranged on the assist device.
[0058] A compression stocking can be pulled on as follows using assist device 1. Assist
device 1 is placed upside down with the grip member 6 resting on a ground surface
between the legs of the user. The compression stocking is then clamped with the seam
(or rear side) directed upward at the heel between the second stocking expanding elements
(14a, 14b), which point upward in the upside down position. The upper edge of the
compression stocking is then folded back over the other (first) stocking expanding
elements (15a, 15b). This does not involve any appreciable tension. An elongated sliding
strip of a flexible, smooth material, for instance spinnaker cloth, can then also
be placed with a relatively short outer end in the compression stocking, wherein the
remaining, relatively long part is likewise clamped between the second stocking expanding
elements (14a, 14b) together with the heel part of the compression stocking. Assist
device 1 is then turned over again and placed in a position in which the grip member
6 is allocated above the expanding elements (13a, 13b). The latter rest on the ground,
at least the second expanding elements (14a, 14b). The support poles (5a, 5b) are
then slightly brought outward. This movement places the compression stocking under
tension and widens the opening for a foot of the user. The first stocking expanding
elements (15a, 15b) over which the compression stocking is tensioned are set down
on the ground close to the foot, in front of the toes, after which the foot is pushed
into the opening of the compression stocking. The opening is sufficiently large due
to the compression energy stored in the spring element 60. In a subsequent step the
compression stocking is pulled further upward. The upper body can hereby optionally
also assist in pulling up the compression stocking along the leg by leaning backwards
a little. The compression stocking is pulled further until it is in place. Stocking
expanding elements (15a, 15b) are then removed from the compression stocking, and
the optionally present sliding strip is pulled from between the leg and the stocking
via the top side. If desired, the compression stocking can be pulled slightly further
using manual force.
[0059] The same assist device 1 can likewise be used for the purpose of pulling off a compression
stocking. The distal (second) stocking expanding elements (14a, 14b) point downward
here, and support poles (5a, 5b) rest along the body with the grip member 6 resting
in the lap of a patient. The second stocking expanding elements (14a, 14b) are pushed
into the compression stocking on either side of the lower leg via the top side of
the compression stocking. The compression stocking is then pushed downward using the
grip member 6 of support poles (5a, 5b). Once the compression stocking has in this
way been peeled off the lower leg, stocking expanding elements (14a, 14b) are removed
from the compression stocking. If desired, use can also be made of a sliding strip
when the stocking is being pulled off.
[0060] A (therapeutic) compression stocking can be pulled on and off as described in simple
manner using little force and small movements. The assist device is easy to handle,
light in weight and, owing to the modular structure, saves storage space. Arranging
a compression stocking over the stocking expanding elements is also simple. Because
the spoon elements take an ergonomic form and are covered with relatively smooth rubber,
these elements cause less friction and do not press painfully into the skin of a user.
The assist device may further be adjustable in length, which increases the convenience
of use and the flexibility thereof.
[0061] The invention is not limited to the above described exemplary embodiments. It will
be apparent that within the scope of the invention different modifications can be
made which will be self-evident to the skilled person.
1. Assist device for pulling a compression stocking on and off a leg, comprising a pair
of elongated support poles, each with a proximal end and a distal end, wherein the
support poles are joined at their proximal end by a grip member and at their distal
end each comprise a stocking expanding element forming an adjacently placed pair over
which a compression stocking can be arranged, wherein the grip member comprises a
spring element configured to move the distal ends of the support poles under bias
towards and away from one another in a transverse direction, wherein the spring element
has a height and has an asymmetrical shape with respect to a line extending at half
height.
2. Assist device according to claim 1, wherein the spring element is configured such
that the initial spring force experienced when moving the distal ends towards one
another differs from the initial spring force experienced when moving the distal ends
away from one another, and is preferably smaller than the initial spring force experienced
when moving the distal ends away from one another.
3. Assist device according to claim 1 or 2, wherein the spring element is configured
such that the spring force experienced when moving the distal ends towards one another
increases from the initial spring force to an end spring force larger than the initial
spring force.
4. Assist device according to any one of the preceding claims, wherein the support poles
do not substantially bend when moving the distal ends of the support poles under bias
towards and away from one another in the transverse direction.
5. Assist device according to any one of the preceding claims, wherein the spring element
is integrally formed with the grip member.
6. Assist device according to any one of the preceding claims, wherein the grip member
has a height and the spring element comprises a portion of the grip member having
a reduced height.
7. Assist device according to any one of the preceding claims, wherein the spring element
comprises a number of deformable wall parts extending substantially in a height direction
of the spring element, and arranged parallel to each other in a length direction of
the spring element.
8. Assist device according to claim 8, wherein the deformable wall parts comprise projections,
wherein the projections do not contact each other in an initial position corresponding
to the initial spring force.
9. Assist device according to claim 8, wherein the projections contact each other when
moving the distal ends towards one another over a certain transverse distance.
10. Assist device according to any one of the preceding claims, wherein deformable wall
parts of the spring element are mutually connected through curved wall parts, arranged
at an underside of the spring element.
11. Assist device according to any one of the preceding claims, wherein the spring element
is covered with a flexible sleeve.
12. Assist device according to any one of the preceding claims, wherein the grip member
comprises jackets for releasably receiving the proximal ends of the support poles.
13. Assist device according to claim 12, wherein the releasable connection between the
support poles and the sleeves comprises a locking pin that engages in aligned wall
openings of the jacket and a support pole, is held in a locking position by means
of a spring and can be pushed into an unlocking position in which the locking pin
leaves the wall opening of the jacket clear.
14. Method for pulling a compression stocking on a leg, comprising of
a) providing an assist device according to any one of the preceding claims;
b) moving the distal ends of the support poles under bias towards one another in a
transverse direction and apply an compression stocking over the stocking expanding
elements, thereby forming an opening for a foot;
c) inserting the foot into the opening;
d) moving the assist device in the proximal direction, wherein the compression stocking
is moved together with the stocking expanding elements along the lower leg towards
the knee and into the desired position; and
e) removing the stocking expanding elements from the compression stocking.
15. Method for pulling a compression stocking off a leg, comprising of
a) providing an assist device according to any of the claims 1-13;
b) attaching the stocking expanding elements to a compression stocking arranged around
the leg by positioning the stocking expanding elements under an upper edge of the
compression stocking;
c) moving the assist device in the distal direction, wherein the compression stocking
is moved together with the stocking expanding elements along the lower leg towards
the foot;
d) peeling off the compression stocking over the foot until it is free from the foot;
and
e) removing the stocking expanding elements from the compression stocking.