BRPI1000499A2 - passive plantar and dorsal flexion equipment for post trauma therapy - Google Patents

Abstract

EQUIPMENT FOR PASSIVE PLANTAR AND DORSAL ANKLE FLEXION IN POST TRAUMA THERAPY. Formed by a worm shaft (7) connected to an electronically controlled motor (4) for the slide of a coupled mobile carriage (8), provided with a pivoting and pivoting system through a rod (10) connected by pivot points (9) and (11) to a pedal (12). The mechanism is pivotally attached to the support structure (16) and (19) of the user's leg which strap-secures the foot to the pedal (12) and is seated on a bench (B) and provided with a control (21). ), drives the motor (4) so that, through the articulation system, from the pedal (12) the continuous and mechanized uniform flexion of the patient's foot is caused, allowing the physiotherapeutic treatment of passive plantar and dorsal passive flexion. .

Description

"EQUIPMENT FOR PASSIVE PLANTAR AND DORSAL ANKLE FLEXION SYSTEM IN POST TRAUMA THERAPY"

This descriptive report refers to a patent application for mechanized, electronically controlled equipment enabling a system whereby the patient can perform passive plantar and dorsal flexion movements of the ankle in postoperative or preventive cases under your own control, whether in the office, hospital or your home, without the need for constant presence of the responsible professional, and should only follow your medical recommendations.

The equipment, by the proposed system, allows a mechanized, uniform, continuous and smooth passive movement, performed according to the desired intensity or indicated thanks to the electronic control, which is able to record the flexion cycles, thus making the physiotherapy treatment extremely effectively and fully monitored by the doctor.

TECHNICAL STATE

It is well known that one of the critical points in terms of the articulation of the human body is the ankle through which man walks and runs, that is, makes up his most elementary and essential movements.

Such movements, in fact, depend not only on the correct articulation or the correct way of walking, since the surfaces vary at any moment, whether flat, inclined, stepped (in the case of stairs). In any case the stepping action becomes important since, if done wrongly or on a bumpy surface, it can cause the foot to turn inward and, with the weight of the body itself motivate sprains or sprains, extremely frequent injuries in humans. . As is well known, with the sprain the ligaments are abruptly and excessively elongated and rupture. In more severe cases, also very common, surgeries are required.

However, if the problem has occurred, whether surgery or not, an indispensable procedure is the repetitive exercise of moving the foot up and down so that the pain disappears over time and the joint can resume normally. If this is not possible, passive movement should be resorted to - movements performed by the strength and skill of a professional without the assistance of the injured individual.

In this case the professional (orthopedist or physiotherapist) should guide the joint from the patient's heel, grasping the forearm and initiating the flexion, performed repeatedly, in several sessions. Of course, such sessions require the professional to be present or the patient to travel to the office, clinic or similar locations.

As has been said, such exercise also depends on the practitioner's ability to have the movements repeated with speed and intensity, as far as possible, uniform, so that the treatment has the desired effect. Of course, this uniformity or continuity is relative because it depends on human action, which, of course, is subject to innumerable physical or psychological conditions, depending on the professional's state of mind.

PATENT OBJECTIVE

The equipment in question, the reason for this patent application, combines mechanized operation with electronic animation, enabling a system whereby the patient can perform passive plantar and dorsal flexion movements of the ankle in postoperative or preventive cases under his own. control and absolutely uniform. The equipment allows the user to sit comfortably on a seat with an electronic control, extend one leg, support it and attach the foot to a pivoting pedal attached to the pendulum rod of a mobile car, which is coupled to the worm shaft of a motor.

The motor has the speed, forward and reverse determined by the electronic control, so that with the rotation of the worm shaft (which is positioned parallel and superior to the user's leg), the back and forth movement is caused. of the car with the pendulum rod. Such pendular motion is transmitted to the sole or toe of the user (controlled by himself), causing the passive joint of the ankle.

The equipment is therefore recommended for ankle joint reconstruction, ligament repairs, arthrosis (surgical procedure for restoration of joint mobility) arthroscopy surgery (surgical procedure for examination or treatment of injuries within joints), burns, joint sepsis (arthritis) and other similar physical therapy events to accelerate post-surgical recovery or for prevention.

Explained superficially, it passes the equipment and the system that surrounds it, to be more detailed, through the attached drawings by which we see:

Figure 1 - Schematic view showing the patient seated comfortably on a bench, positioned next to the equipment in question and holding, with one hand, an electronic control, as shown in detail A. As observed, the patient supports the leg to be treated in the guide of a tilt-adjustable rod as shown in detail B, then securing the foot to the velcro strap of a swivel pedal, as shown in the sequence of detail C. The mechanism of the apparatus has an arrangement of joints by which the pedal is attached to a rod which, in turn, is attached to the movable carriage coupled to the worm shaft of a motor, forming a system that, after the worm shaft is rotated, gains pendulum movement.

Due to the constructive design of the equipment, the patient's leg is positioned parallel to the worm axis. The motor is controlled at its shaft speed, forward and reverse through a printed circuit board, wired to the control used by the patient.

The following views show the patient performing plantar flexion through the equipment. However, the flexion can also be dorsal, with the patient lying on his stomach, keeping the same operating system:

Figure 2 - Schematic view according to the previous figure, showing the electronic control being activated by the patient, for the motor shaft rotation;

Figure 3 - Schematic view according to the previous figure, showing the drive for the advance, so that the mobile car slides against the patient. The pendular movement offered by the arrangement of the joints between the carriage, the rod and the pedal is transmitted to the patient's foot, which is bent downwards;

Figure 4 - Schematic view according to the previous figure, showing the movement after actuation of the reverse, so that the mobile carriage slides away from the patient and, with the return, the foot is articulated upwards;

Figure 5 - Schematic view according to the previous figure, showing the already articulated foot up, completing a passive flexion cycle to the ankle.

In accordance with the accompanying drawings, the "PASSIVE PLANTAR AND DISTAL ANKLE FLEXION EQUIPMENT, AFTER TRAUMA THERAPY", the subject-matter of this patent application, consists of equipment the mechanism of which is installed from a on a base formed by two parallel horizontal sleepers (1) with rubber mounts (2), which at their rear end support a fairing (3) that surrounds and protects a motor (4), whose shaft (5) receives , by means of transmission gear (6), a worm shaft (7).

The worm shaft (7) extends from the fairing (3), running parallel to the base parallel horizontal sleepers (1) and is coupled to its sliding body by a coupling of a movable carriage (8) ).

The movable carriage (8) is connected by a pivot point (9) to a rod (10), whose free opposite end, also by a pivot point (11), is connected to a pedal (12) with a strap ( 13) with Velcro strap closure (14).

The pedal (12), in turn, is also connected by pivot point (15) fixedly to the end of a pair of upper horizontal sleepers (16) which are supported by tilt-adjustable points ( 17) by a pair of vertical columns (18) extended from the parallel horizontal cross members (1) of the base of the equipment. At their free end, the upper horizontal sleepers (16) are joined by a clamp, forming a support (19).

The motor (4) is integrated in its electrical circuit with a printed circuit board (20) interconnected by cable (C) with an electronic control (21) with a display (22) and also with higher intensity keys. (23) and (24), a central stop key (25) and two further keys, one forward key (26) and one reverse key (27).

Thus constituted, the equipment will be used for passive plantar and dorsal flexion movements of the ankle by patients undergoing postoperative treatment and also to prevent joint stiffness.

For use, the patient sits comfortably on a bench (B), provided with the control (21) in one hand. The bench is positioned at the front of the equipment at a distance determined by the physiotherapist or orthopedist, so that the patient extends the leg properly, accommodating the calf of the leg on the support (19) and, consequently, resting the foot plan (12) on the foot. heel by securing it by the velcro fastener (14) of the strap (13).

In this condition, the patient's leg is positioned superior and parallel to the worm axis (7).

By logic programming, by means of control (21), forward key (26) and speed intensity keys (23) and (24), according to the type of exercise, the motor (4) is driven whose axis (5) by

4 drive gear (6) causes the worm shaft to rotate (7) by sliding the movable carriage (8). The latter, by sliding, by its pivot point (9) moves the rod (10) close to the pivot point (11) with the pedal (12), which, by being secured by the fixed pivot point (15) with the pair of upper horizontal sleepers (16) is forced to make pendulum motion.

In this way the patient's ankle joint is provoked, flexing his foot down, as shown in figure 3.

As shown in Figure 4, after the reverse key (27) is pressed, the mobile carriage (8) returns, which, by the same pendulum movement, flexes the patient's foot upwards and so on, causing the mechanized flexion system. passive, continuous ankle.

Claims (4)

1. "EQUIPMENT" consists of equipment the mechanism of which is installed from one on a base formed by two parallel horizontal sleepers (1) with rubber mounts (2), which support at their rear end a fairing ( 3) which surrounds and protects a motor (4), whose shaft (5) receives, by means of transmission gear (6), a worm (7), extending from the fairing (3) and driving parallel to the horizontal base crossbars (1), receiving, in its threaded body, the coupling of a mobile carriage (8), characterized in that it is connected by a pivot point (9) to a rod (10), whose opposite end, free, also by pivot point (11), connects to a pedal (12) with strap (13) with velcro strap closure (14), said pedal (12) also connected by hinge (15) fixedly to the end of a pair of upper horizontal sleepers (16) supported by tilt-adjustable points (17) for a pair of vertical columns (18) extended from the parallel horizontal cross members (1) of the base of the equipment, and at their free end the upper horizontal cross members (16) are joined by a clamp forming a support (19) . 2. "PASSIVE PLANTAR AND DORSAL ANKLE FLEXION SYSTEM IN POST TRAUMA THERAPY" according to claim 1, the motor (4), integrated by its electrical circuit, with a cable-connected printed circuit board (20) ( C) an electronic control (21) having a display (22) and also top speed intensity keys (23) and (24), a central stop key (25) and two further keys, one key being (26) and a reverse key (27), so that the patient sitting on the bench seat (B), provided with one hand, the control (21), positioned on the front of the equipment at a distance determined by the physiotherapist or orthopedist, to extend the leg properly, characterized by accommodating the calf of the leg on the support (19) and resting on the pedal (12), the sole of the foot by the heel, securing it by the velcro closure (14) of the strap (13), positioned higher and parallel to the worm shaft (7). 3 "PASSIVE PLANTAR AND DORSAL ANKLE FLEXION SYSTEM IN POST TRAUMA THERAPY" according to Claims 1 and 2, characterized in that, by means of the control (21), the advance key (26) and the keys (23) and ( 24) of speed intensity, depending on the type of exercise, the motor (4) whose shaft (5), through the transmission gear (6) causes the worm shaft to rotate (7), by sliding the motor mobile carriage (8), which by its pivot point (9) moves the rod (10) close to the pivot point (11) with the pedal (12), secured by the fixed pivot point (15) with the pair upper horizontal sleepers (16), and after the reverse key (27) is pressed, the mobile carriage (8) returns, flexing the patient's foot upwards and so on.