FR3053879A1 - APPARATUS FOR ENABLING THERAPY OF MEDICAL COMPRESSION ORTHESES ON PATIENT MEMBERS BELOW OR ABOVE - Google Patents

Abstract

The present invention relates to an apparatus (100) for threading medical compression orthoses on a patient's legs or on a patient's arms, comprising a housing (Bt) equipped with a operating mechanism (Mm) adapted to move in translation two spacing means (Mt1, Mt2) in two opposite directions and simultaneously, the two spacing means (Mt) being arranged vis-à-vis to open a medical compression orthosis previously threaded on the two spacing means (Mt) when they are arranged in a maximum approach position, the operating mechanism (Mm) comprising a threaded shaft (Af) disposed in the housing (Bt), comprising two threads (F +, F-) of inverted pitches, two threaded nuts (Nt) screwed onto the two threads (F +, F-) and capable of displacing the two spacing means (Mt) during the rotation of said threaded shaft ( af). According to the invention, the apparatus (100) comprises two parallel arms (Br1, Br2) spaced apart and carrying the two threaded nuts (Nt), the two arms (Br) emerging from said housing and the two spacing means ( Mt) are respectively fixed on the two spacer arms.

Description

053 879

56765 ® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:

(only to be used for reproduction orders) © National registration number

COURBEVOIE © Int Cl ⁸ : A 47 G 25/90 (2017.01)

PATENT INVENTION APPLICATION

A1

Date of filing: 13.07.16. © Applicant (s): GILLES RAULT— FR. © Priority : © Date of availability of the request: 19.01.18 Bulletin 18/03. @ Inventor (s): RAULT GILLES, RAULT CATHERINE, GARDE THERESANNE, FONTAINE CECILE, RAULT LOUIS-GILLES and LE HELLOCO EMILIE. (56) List of documents cited in the preliminary search report: See the end of this brochure © References to other related national documents: ® Holder (s): GILLES RAULT. o Extension request (s): © Agent (s): CABINET LE GUEN ET MAILLET Professional civil society.

APPARATUS FOR ALLOWING THREADING OF MEDICAL COMPRESSION ORTHESES ON THE LOWER OR UPPER MEMBERS OF A PATIENT.

FR 3,053,879 - A1 yV) The present invention relates to an apparatus (100) intended to allow the donning of medical compression orthotics on the legs of a patient or on the arms of a patient, comprising, a housing (Bt) equipped with an operating mechanism (Mm) designed to move in translation two spacing means (Mt1, Mt2) in two opposite directions and simultaneously, the two spacing means (Mt) being arranged in opposite to open a medical compression orthosis previously threaded on the two spacing means (Mt) when they are disposed in a position of maximum approximation, the operating mechanism (Mm) comprising a threaded shaft (Af) arranged in the housing (Bt), comprising two threads (F +, F-) of reversed pitch, two threaded nuts (Nt) screwed onto the two threads (F +, F-) and capable of displacing the two spacing means (Mt ) during the rotation of said threaded shaft (Af).

According to the invention, the apparatus (100) comprises two parallel arms (Br1, Br2) for spacing and carrying the two threaded nuts (Nt), the two arms (Br) emerging from said housing and the two spacing means ( Mt) are respectively fixed on the two spacer arms.

The present invention relates to an apparatus for threading compression stockings on the legs or compression sleeves on the arms of a patient.

For people suffering from blood circulation problems or edema in the legs, they are often prescribed to wear compression stockings. The difficulty in donning these stockings is relatively great, since they are made in an elastic veil that is difficult to stretch and opening them with the hands is quickly tiring for the patient and even for the caregiver who performs this treatment. This work is all the more difficult when the patient is an elderly or disabled person.

Devices have been designed to help allow the threading of these compression stockings. Reading from patent FR3020936, an assistance system for threading a medical compression device on the legs of a patient is thus known. It comprises a housing in which are mounted two driving carriages of two stretching members, a double-threaded screw of inverted pitch which can move the two stretching members apart or during their rotation, the screw being connected to a electric motor. Each stretching member is manufactured in a cylindrical bar shaped flat to receive the opening of a stocking. Its two free ends are oriented 90 ° relative to the axis of introduction of the stretching member into the compression stocking. The two free ends are however situated on a plane perpendicular to the complementary part of the stretching member and are offset laterally to reinforce the bending stiffness of the stretching member which must in cooperation with the other stretching member. stretching open the compression stocking to allow it to be threaded onto a patient's leg. The two free ends of the relatively long drawing member penetrate the housing and are fixed on a corresponding carriage. The spacing force required to open a compression stocking is relatively large and the deformations of the two stretching members are heterogeneous, not allowing them to correctly hold the compression stocking open.

To this end, there is provided an apparatus intended to allow the threading of medical compression orthoses on the legs of a patient or on the arms of a patient, comprising a housing equipped with an operating mechanism designed to move in translation of two spacing means in two opposite directions and simultaneously, the two spacing means being disposed opposite to open a medical compression orthosis previously threaded on the two spacing means when they are disposed in a position of maximum approximation, the operating mechanism comprising a threaded shaft disposed in the housing, comprising two threads of inverted pitches, two threaded nuts screwed onto the two threads and capable of displacing the two spacing means during the rotation of said shaft threaded; according to the invention, the apparatus comprises two parallel spacer arms carrying the two threaded nuts, the two arms protruding from said housing and the two spacer means are respectively fixed on the two spacer arms.

Thus, in operation, it is mainly the spacer arms, which can take place on either side of the patient's leg or arm and which then support the bending forces during the opening of the compression orthosis. medical.

According to an additional characteristic of the invention, two guide shafts are arranged in the housing, the two guide shafts being arranged in parallel on either side of the threaded shaft, each spacer arm being slidably mounted on the two guide shafts.

The presence of the two guide shafts increases the rigidity of the guide of the two spacer arms.

According to an additional characteristic of the invention, each spacing means comprises a fixing part on a corresponding arm and a threading part.

These two distinct functions are implemented by two different means.

Advantageously, each spacing means is formed of a hollow or full and shaped tube, the fixing part comprising the two sections constituting the two ends of the tube and which are mounted respectively in two holes made from the back wall of said arm.

The threading part of the spacer means is fixed as close as possible to the spacer arm.

According to an additional characteristic of the invention, each spacer arm is delimited by two symmetrical longitudinal walls and a second section extends perpendicularly following each end section, a third section extending the second section towards said first section, so that the third sections constituting the fixing part can bear on one of the longitudinal walls of a corresponding spacer arm to limit the deflection inward of the spacer means fixed on said arm.

The threading portions of the two spacing means are more resistant to bending during the opening of the medical compression orthosis.

According to an additional characteristic of the invention, the threading part comprises a U-shaped section composed of an intermediate branch extended by other branches connected to the fixing part and the intermediate branch is concave when viewed from above.

This geometry of the end of the threading part facilitates the introduction of the foot between the two spacing means.

According to an additional characteristic of the invention, the threaded shaft is connected to a rotary drive means.

The two spacing means can thus be moved away or brought closer.

Advantageously, the rotary drive means consists of a crank disposed outside the housing and which is connected to one end of the threaded shaft.

Thus, the device can operate autonomously by manually turning the crank.

According to an additional characteristic of the invention, the housing is delimited by two parallel main faces and the two arms stand out between the two main faces and parallel to them.

We can thus rest the device on one or the other of its two main faces and reverse the two spacing means from top to bottom or from bottom to top. The crank can then be placed on the right of the housing or on its left, thus suitable for both a right-handed user and a left-handed user.

According to an additional characteristic of the invention, the threading part has, in front view, a curved geometry and the thickness and of each arm measured in a plane intersecting at the first hole is less than the thickness e2 measured in a plane intersecting at the second hole, the two first and third sections of one end of the tube being closer to each other than the other two first and third corresponding sections of the other end of the tube, so as to constitute a key which requires that the two spacing means cannot be reversed when they are turned on the same side.

According to an additional characteristic of the invention, the device comprises a covering cap for the inner face of each spacer arm.

According to an additional characteristic of the invention, the device is equipped with two handles respectively provided with fixing means with said device making it possible to catch it and move it from a distance.

The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:

Fig. 1 shows a perspective view of an apparatus for threading stockings or compression sleeves according to the invention, FIG. 2 shows a top view of an apparatus for threading stockings or compression sleeves according to the invention, FIG. 3 shows a perspective view of an arm intended to carry a spacer for an apparatus for threading stockings or compression sleeves according to the invention, FIG. 4 shows a perspective view of an arm according to FIG. 3 and which is covered on its inner face with a covering cap according to the invention, FIG. 5 shows a perspective view of a pair of spacing means for an apparatus for threading stockings or compression sleeves according to the invention, FIG. 6 shows a side view of a pair of spacing means for an apparatus for threading stockings or compression sleeves according to the invention and, FIG. 7 shows a perspective view of a handle for keeping at a distance an apparatus for threading stockings or compression sleeves according to the invention.

The apparatus 100 which is shown in FIG. 1 is intended to allow the donning of compression stockings on the legs or compression sleeves on the arms of a patient. For legs, the term compression stockings includes stockings, socks, tights and all types of medical compression orthotics. For the arms, the medical compression orthosis is commonly called a cuff. The term medical compression orthosis designates all of these objects in the remainder of this description.

This treatment can be carried out by the patient himself or by a third person, such as a carer and who uses the device. It allows to open a medical compression orthosis in a sufficient size to allow the introduction of a foot or a wrist in the medical compression orthosis and then to bring the orthosis up along the leg, along of the patient's arm.

The apparatus 100 is made up, in this FIG. 1, of a housing Bt containing an operating mechanism, of two spacer arms Brl and Br2 capable of being displaced longitudinally in the housing Bt, by means of the operating mechanism and on which are mounted two means d '' Mtl and Mt2 spacing to open a medical compression orthosis. The two spreader arms can be moved between a position of maximum approximation and a position of maximum separation.

The Bt housing has a prismatic appearance. It consists of two half-shells C1 and C2 which are hollowed out internally and assembled together, for example using screws V or rivets. The housing Bt thus has two main faces Fp which are parallel and only one of which is visible in this FIG. 1. The housing Bt is symmetrical by a joint plane joining the two half-shells Cl and C2. Anti-slip pads Ps are fixed on the two main faces Fp of the housing Bt to facilitate the use of the device, for example on a table.

The half-shell C1 is visible in FIG. 2, the other having been removed to see the interior of the housing.

The two spacer arms Br can be moved in translation in opposite directions by means of the operating mechanism Mm. They can thus come together as the arrows Fl suggest or move away as the arrows F2 suggest.

The Brl arm is presented in broken lines to better see the operating mechanism Mm.

The operating mechanism Mm comprises a threaded shaft Af, connected to a rotation drive means Mr, two guide shafts Agi and Ag2, two tapped nuts Nt mounted respectively in the two arms Br to move them during the rotation of the threaded shaft Af. The axes of the threaded shaft Af as well as those of the two guide shafts Ag are parallel. The threaded shaft Af is arranged between the two guide shafts Ag.

The threaded shaft Af has two threads F +, F- of inverted pitch and which are produced on either side of a transverse plane of symmetry of said threaded shaft. The two threaded nuts Nt are respectively screwed onto the two threads F +, F-. The threaded shaft Af is preferably made of metal but can however be made of a plastic material.

The threaded shaft Af is mounted to rotate freely at its two ends, by means of two pli bearings, P12 shouldered and held in the housing between the two half-shells. At least one shouldered intermediate bearing Pi also rotates the threaded shaft Af in its middle and between the two threads F +, F- of inverted steps. Again, the intermediate bearing is held in the housing between the two half-shells. More specifically, the threaded shaft has two shoulders in the middle which rotate respectively in two intermediate bearings Pii and Pi2 and which are separated by a gap in the form of a crown allowing a step Rd secured to each half-shell of it. take place to prevent translation of the threaded shaft Af.

The two Ag guide shafts are made of metal. They are respectively held at their two ends in two semi-cylindrical housings produced in each of the half-shells of the housing.

The rotation drive means Mr is constituted in this FIG. 2, a crank disposed outside the housing and which is connected to one end of the threaded shaft Af. Thus, the apparatus 100 can operate independently.

This crank is, in an alternative embodiment not shown, replaced by an electric motor powered by batteries mounted in a housing attached to the motor.

A slot Ft is produced through the front wall of the housing, facing the two spacing means Mt. One end of each arm Br is inserted into the housing through said slot. The two arms can thus slide freely in said housing. The slot Ft is produced in the two half-shells of the housing.

The two arms Brl and Br2 facing each other have a symmetrical structure.

In Fig. 3, the arm Br presented consists of a long piece, for example manufactured by injection of a plastic material, in a manufacturing mold. Two examples of interesting choice of materials are: polyamide filled with glass fibers, polycarbonate, for their mechanical characteristics, in particular with regard to rigidity.

The elongated part is hollowed out internally from its internal face, that is to say from its face intended to be turned opposite the other arm. The elongate part is thus essentially delimited by a back wall Pd, two symmetrical longitudinal walls Pt and only one of which is visible, as well as two end walls.

Nv ribs, however, internally reinforce the structure of the elongated part so that the spacer arm can withstand the bending force to which it is subjected in operation. The inner face is concave to facilitate the passage of the patient's leg or arm between the two spacer arms.

The arm Br is symmetrical in a median transverse plane. Its plane of symmetry is practically coplanar with the joint plane of the two half-shells of the housing. An apparatus is thus obtained with symmetrical positioning depending on whether it rests on one or the other of its two half-shells.

The elongated part is traversed right through by several orifices arranged parallel to one another. The axes of these orifices are coplanar with the median plane of the arm. We thus distinguish:

two housings Lgl and Lg2 in which are respectively mounted guide bearings Pg which can slide on the two guide shafts held in the housing,

a housing Lg3 disposed between the two housings Lg in which is mounted a threaded nut Nt capable of cooperating with the threaded shaft mounted in the housing,

- Two holes Tri and Tr2 intended to receive respectively the two end sections constituting a corresponding spacing means.

In an alternative embodiment shown in FIG. 4, a covering cap Cr covers the concave inner face of the arm Br. Its outer wall is also concave. It is also smooth because it is easier to clean than the interior of the elongated and hollowed-out part, to protect the patient from a nosocomial infection.

Each spacer means Mt takes the form, in FIG. 5, of a hollow or full tube and preferably circular and which is shaped. Each spacer means Mt is preferably made of metal, by shaping the tube. It thus includes:

a fixing part Pf which is intended to be used for mounting said spacing means on a corresponding arm,

a donning part Pn intended to be introduced into a medical compression orthosis to be opened jointly with the other spacing means and which is planar.

In Fig. 6, the fixing part Pf consists of the two ends of the tube and which are shaped as follows: each end comprises a first section Tl constituted by one end of the tube, a second section T2 which extends perpendicularly following the first section Tl, a third section T3 which extends the second section T2 in the direction of the first section Tl so as to be able to bear on one Pt of the two longitudinal walls of a corresponding spacer arm Br.

Each first section T1 is intended and with reference to FIG. 3, to be introduced into a corresponding hole Tri or Tr2 of the arm Br. Note that in this FIG. 3, the thickness el of the arm Br measured in a plane intersecting at the hole Tri is less than the thickness e2 measured in a plane intersecting at hole Tr2. In Fig. 6, the two sections Tl and T3 of one end of the tube are closer to each other than the other two sections Tl and T3 corresponding to the other end of the tube. Thus, the cooperation of these two characteristics forms a key which requires that the two spacing means Mt cannot be reversed when they are turned on the same side.

However, given that each arm has symmetry in a median transverse plane and that the housing is also symmetrical in a joint plane joining its two half-shells, it is possible to turn, from top to bottom, the two means of 'spacing Mt and reversing them from left to right, so that they can be rotated, either up or down. This possibility allows a patient or caregiver to use the crank on the right or left, depending on whether he is right-handed or left-handed.

The threading part Pn, consisting of a shaped portion of the tube, is connected to the two sections T3. It is connected so that the two spacing means Mt have between them, in their position of use, an acute angle comprised, in particular, between 2 and 10 degrees.

The threading part Pn thus comprises, in FIG. 5, a U-shaped section composed of an intermediate branch Bi extended by two branches of a first row B la and B lb reentrant, arranged opposite the fixing part Pf, the U-section comprising three other pairs of branches B2, B3 and B4 respectively extending the first rows Bl. There are thus two second rows B2a, B2b which are flared down towards the fixing part Pf, then two third rows B3a, B3b reentrant and finally two branches of fourth row B4a, B4b which join by rounded parts the third sections of the fixing part Pf. This structure of the threading part Pn makes it possible to retain in a staged manner a medical compression orthosis threaded on the two means of spacing Mt, the U-shaped section retaining the heel (for compression stockings) and the other branches holding the enlarged part of the medical compression orthosis.

Furthermore, one of the second-tier branches, the branch B2b, is longer than the branch B2a, which gives the threading portion Pn a curved geometry in front view, and which facilitates the fitting of the medical compression orthosis on the leg of a patient, as it makes it easier to pass the kick without touching the tibia.

In Fig. 5, the two intermediate branches Bi of the two spacing means Mtl and Mt2 arranged opposite one another in their operating position, are preferably concave to facilitate the introduction of the foot between the two spacing means Mtl and Mt2.

The operation of the apparatus 100 will now be described for the installation of a medical compression orthosis on a leg of a patient. The apparatus is placed on the edge of a table and the two spacing means Mtl and Mt2 are brought closer by turning the crank Mr in their position of maximum approximation. A medical compression orthosis is put on the two spacer means Mt. Then the crank is turned in the opposite direction to move the two spacer spacer Mt apart in order to open the medical compression orthosis.

In this position of maximum stress in the two spacer arms Br holding the two spacer means Mt, the presence of the two guide shafts Agi and Ag2, limits the bending of the two spacer arms inwards.

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Furthermore, the inward bending of the two spacing means Mt is limited by the third sections T3 which come to bear on one of the longitudinal walls Pt of the two spacer arms Brl and Br2.

The deflection towards the inside of the two spacing means Mt is also homogeneous because, in top view, the four retaining points, that is to say the four sections Tl, constituting the two spacing means Mt , are arranged around the constituent branches of the threading part Pn.

For a patient with an arm disability, this person can clamp the device 100 to the table using a clamp. It can thus rotate the crank without having to hold the case.

The patient or the caregiver then places the device so as to be able to thread a patient's foot into the open medical compression orthosis, then reassembles the device and finally removes the medical compression orthosis from the two spacing means.

The apparatus 100 of the invention for donning compression stockings provides sufficient rigidity to open a medical compression orthosis of the class 3 or class 4 type corresponding to a compression exerted, in particular on the patient's leg, which can reach 48 hPa or 36 mmHg.

The device 100 is partially removable, in particular its two spacing means, the crank. It can thus be easily stored in a space-saving box.

In Fig. 7, the device 100 is equipped with two handles Mn respectively provided with fixing means Mf with said device making it possible to catch and move it from a distance. Only one handle and its fixing means are visible on this

Fig. 7. This accessory is very useful for patients who are not very mobile. Fe fixing means Mf consists of a fork comprising at least two fingers and which are capable of being housed in two housings hollowed out in a corresponding arm Br, from its dorsal face Pd.

Claims (12)

1) Apparatus (100) intended to allow the donning of medical compression orthotics on the legs of a patient or on the arms of a patient comprising a housing (Bt) equipped with an operating mechanism (Mm) designed to move in translation two spacing means (Mtl, Mt2) in two opposite directions and simultaneously, the two spacing means (Mt) being arranged opposite to open a medical compression orthosis previously threaded on both spacing means (Mt) when they are disposed in a position of maximum approximation, the operating mechanism (Mm) comprising a threaded shaft (Af) disposed in the housing (Bt), comprising two threads (F +, F-) reverse pitch, two threaded nuts (Nt) screwed onto the two threads (F +, F-) and capable of moving the two spacing means (Mt) during the rotation of said threaded shaft (Af), characterized in that the apparatus (100) comprises two arms (Brl, Br2) paral spacers and carriers of the two threaded nuts (Nt), the two arms (Br) coming out of said housing and in that the two spacing means (Mt) are respectively fixed on the two spacer arms. 2) Apparatus (100) according to claim 1, characterized in that two guide shafts (Agi and Ag2) are arranged in the housing (Bt), the two guide shafts (Ag) being arranged in parallel on either side of the threaded shaft (Af), each arm (Brl, Br2) being slidably mounted on the two guide shafts (Ag). 3) Apparatus (100) according to claim 1 or 2, characterized in that each spacing means (Mt) comprises a fixing part (Pf) on a corresponding arm and a threading part (Pn). 4) Apparatus (100) according to claim 3, characterized in that each spacing means (Mt) is formed of a hollow or full and shaped tube, the fixing part (Pf) comprising the two sections (Tl) constituting of the two ends of the tube and which are respectively mounted in two holes (Tri, Tr2) produced from the dorsal wall (Pd) of said arm. 5) Apparatus (100) according to claim 4, characterized in that each spacer arm (Br) is delimited by two symmetrical longitudinal walls and in that a second section (T2) extends perpendicularly following each end section (Tl), a third section (T3) extending the second section (T2) in the direction of said first section (Tl), so that the third sections (T3) constituting the fixing part (Pf) can take support on one (Pt) of the longitudinal walls of a corresponding spacer arm (Br) to limit the deflection inward of the spacer means fixed on said arm. 6) Apparatus (100) according to claim 3, 4 or 5, characterized in that the threading part (Pn) comprises a section in (U) composed of an intermediate branch (Bi) extended by other connected branches to the fixing part (Pf) and in that the intermediate branch (Bi) is concave when viewed from above. 7) Apparatus (100) according to any one of the preceding claims, characterized in that the threaded shaft (Af) is connected to a rotary drive means (Mr). 8) Apparatus (100) according to claim 7, characterized in that the rotary drive means consists of a crank (Mr) disposed outside the housing (Bt) and which is connected to one end of the 'threaded shaft (Af). 9) Apparatus (100) according to any one of the preceding claims, characterized in that the housing (Bt) is delimited by two main faces (Fp) parallel and in that the two arms (Br) protrude between the two main faces (Fp) and parallel to them. 10) Apparatus (100) according to any one of claims 6 to 9, characterized in that the threading part (Pn) has in front view a curved geometry and in that the thickness (el) of each arm (Br) measured in a plane intersecting the hole (Tri) is less than the thickness (e2) measured in a plane intersecting the hole (Tr2), the two sections (Tl and T3) of one end of the tube being more close to each other than the two other sections (Tl and T3) corresponding to the other end of the tube, so as to constitute a polarizing device which requires that the two spacing means (Mt) cannot be reversed when turned to the same side. 11) Apparatus (100) according to any one of the preceding claims, characterized in that it comprises a covering cap (Cr) of the inner face of each spacer arm (Br). 12) Apparatus (100) according to any one of the preceding claims, characterized in that it is equipped with two sleeves (Mn) respectively provided with fixing means (Mf) with said apparatus for catching and moving it remotely. PL. 2/7 & vv · 3Π <3 <p \ If ⁹ PL. 5/7 Bi Pf PL. 6/7