KR20140055012A

KR20140055012A - Pillow for patients with cervical disc herniation

Info

Publication number: KR20140055012A
Application number: KR1020120121222A
Authority: KR
Inventors: 정선근; 안성훈; 김윤호; 김성인; 박성준; 윤치열
Original assignee: 서울대학교산학협력단
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2014-05-09
Also published as: KR101443971B1

Abstract

The present invention relates to a pillow device for inducing cervical extensor movement and inducing long-term rehabilitation treatment to a cervical disc herniation patient by changing the height of the headrest by adjusting the length of the shape memory alloy wire, and fixing the shape memory alloy wire A horizontal rack for converting the tension generated by a change in length of the wire into a linear motion, a first gear for converting the motion of the horizontal rack into a rotary motion, A rotary part including a second gear and a third gear, a first vertical rack for converting the rotary motion of the second gear into a linear motion, and a rotary motion of the third gear, A second vertical rack for converting the first vertical rack into a linear motion, and a driving unit including a first vertical rack and a head plate fixed to the second vertical rack. The pillow device of the present invention can induce the cervical spine extension motion desired by the user by controlling the flow of electric current, so that it is possible to continuously and periodically provide the physical stimulation that is helpful for the rehabilitation treatment, So that the user can receive physical therapy more comfortably.

Description

[0001] The present invention relates to a pillow for patients with cervical disc herniation,

The present invention relates to a pillow device for a patient with cervical intervertebral disc prolapse, and more particularly, to a device for cervical vertebra prolapse, To a pillow device for inducing rehabilitation treatment of a disease.

The neck disc treatment devices used in hospitals are not suitable for general use because they are lethal in exposure to bad attitudes in daily life due to limited use time of patients, are bulky, bulky and generate a lot of noise. In order to secure this, there is a pillow for a neck disk made for daily life, but it is difficult to provide customized treatment according to the physical characteristic of the user due to a collective manufacturing method, and the structure of the pillow is always kept fixed, And thus the effect of the treatment is small. In addition, since the shape and size of the device are fixed after the device is manufactured on the market, the device can not induce the movement of the cervical vertebrae by changing the position of the head and cervical spine continuously. .

It is an object of the present invention to provide a cervical spine which is capable of automatically and continuously changing the position of the head and neck without noise and vibration by utilizing the deformation of the shape memory alloy according to the temperature, And to provide a pillow device for a herniated disc patient.

In order to achieve the above object, a pillow device for a cervical intervertebral disc herniation patient according to the present invention comprises a power unit for fixing a shape memory alloy wire and providing a force to a horizontal rack through a change in length, A first gear for converting the motion of the horizontal rack into a rotational motion, and a shaft for transmitting the rotational motion of the first gear to the second gear and the third gear, a second gear, and a third gear A first vertical rack for converting the rotational motion of the second gear into a linear motion, a second vertical rack for converting the rotational motion of the third gear into a linear motion, a head plate fixed to the first vertical rack and the second vertical rack, And a driving unit including the driving unit.

The pillow device for a cervical intervertebral disc herniation patient according to the present invention is characterized in that both ends of the shape memory alloy wire are insulated so that electricity does not pass through them and are firmly fixed by a fixing portion.

The pillow device for a patient with cervical intervertebral disc herniation according to the present invention is characterized in that when an electrode is connected to both ends of a shape memory alloy wire, power is supplied in a manner that the wire contracts due to a temperature rise due to a heat application of current .

The pillow device for a cervical intervertebral disc prolapse patient according to the present invention is characterized in that both ends of a shape memory alloy wire necessary for driving can be sufficiently secured and a plurality of guide bearings are fixed so that the wires do not cross each other .

The pillow device for a cervical intervertebral disc prolapse patient according to the present invention is characterized in that a wire is wrapped with an insulating material for insulation of a shape memory alloy wire.

In the pillow device for a cervical intervertebral disc herniation patient according to the present invention, a first through hole and a second through hole are formed in a horizontal rack, and an end of the shape memory alloy wire is inserted into a first through hole And the entirety of the horizontal rack is moved through the second through hole and the tension generated when the shafts are retracted while both ends are fixed.

The pillow device for a cervical intervertebral disc prolapse patient according to the present invention is a pillow device for a cervical intervertebral disc prolapse patient which has a structure in which a horizontal rack guide allows a horizontal rack to move linearly and a horizontal rack and a first gear can be engaged by engagement with an axial holder including a bearing .

In the pillow device for a cervical intervertebral disc herniation patient according to the present invention, movement is limited so that the shaft is fixed by the bearing of the shaft holder and can only rotate, and the first gear, the second gear and the third gear are parallel to the shaft And is rotated at the same rotation speed.

The pillow device for a cervical intervertebral disc prolapse patient according to the present invention is characterized in that a shaft is fixed by a first gear cover including a bearing and a second gear cover.

Also, the pillow device for a cervical intervertebral disc prolapse patient according to the present invention is characterized in that the displacement is amplified by a difference in gear configuration ratio between the first gear and the second gear. The gear ratios of the second and third gears are 1: 1, and therefore both gears have the same displacement amplification.

The pillow device for a cervical intervertebral disc herniation according to the present invention is characterized in that the second gear and the first vertical rack are vertically connected by a vertical rack guide included in the second gear cover. Further, the third gear and the second vertical rack are vertically connected by the vertical rack guide included in the third gear cover.

The pillow device for a cervical intervertebral disc prolapse patient according to the present invention is characterized in that an initial load is supported by a first spring fixed to a lower portion of a first vertical rack and a first spring is compressed when a first vertical rack is lowered . The initial load is supported by the second spring fixed to the lower portion of the second vertical rack, and the second spring is compressed when the second vertical rack is lowered.

The pillow device for a cervical intervertebral disc prolapse patient according to the present invention is characterized in that a first spring guide of a cylindrical shape passes through a first spring and a third through hole formed in the first vertical rack. In addition, the second spring guide in the shape of a cylinder passes through the second spring and the fourth through-hole formed in the second vertical rack.

The pillow device for a patient with cervical intervertebral disc herniation according to the present invention is characterized in that the head plate, the first vertical rack and the second vertical rack are fixed and the head plate is also driven in the vertical direction when the two vertical racks are driven .

According to the present invention, in a device in which the height is controlled by the shape memory alloy wire, the user can induce the desired cervical extensor movement by controlling the current flow, so that the physical stimulation that is helpful for the rehabilitation treatment is continuously You can give. In addition, there is no noise and vibration generated by a driving method using a conventional motor, thereby providing convenience to a user who receives rehabilitation treatment.

1 is a perspective view of a pillow device for a patient with cervical intervertebral disc prolapse according to the present invention.
2 is an exploded perspective view of a pillow device for a cervical intervertebral disc prolapse patient according to the present invention.
FIG. 3 is a state diagram illustrating an operation principle and a use method of a pillow device for a patient with cervical intervertebral disc prolapse according to the present invention.

The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a pillow device for a patient with cervical intervertebral disc prolapse according to the present invention, and FIG. 2 is an exploded perspective view of a pillow device for a patient with a cervical intervertebral disc prolapse according to the present invention.

A pillow device for a patient with cervical intervertebral disc prolapse according to the present invention comprises a shape memory alloy wire and a wire fixture, a power section (100) constituted by a horizontal ratchet, a linear movement of the horizontal rack into rotational motion, And a driving unit 300 for converting the rotational motion of the rotary unit 200 into linear motion and adjusting the displacement of the head plate which the user's head touches.

The power unit 100 includes a shape memory alloy wire 110 that shrinks due to a thermal effect when current flows through electrodes connected to both ends of the wire and a horizontal rack 120 that converts power due to the contraction action of the wire into a horizontal displacement ) And fixtures of wire and horizontal racks.

The large lower plate 130a is coupled to the small lower plate 130b by the plate bolts 150 and the plate nuts 160 and the small plate 130b is also coupled to the first wire 130a by the plate bolts 150 and the plate nuts 160. [ And is combined with the fixing table 140a and the second wire fixing table 140b. The end portions of the shape memory alloy wires 110 that flow current from the power supply as the actual power source are fixed by the first wire fixing table 140a and the second wire fixing table 140b, respectively. The guide bearing 170 which provides a path for increasing the length of the shape memory alloy wire 110 is joined to the small lower plate 130b by the guide bearing fixing bolt 180 to maintain its height and the shape memory alloy wire 110 are fixed by a tension force as they pass between the guide bearings 170.

The fixed shape memory alloy wire 110 passes through the first through hole 140a and the second through hole 140b of the horizontal rack 120 so that when the wire shrinks, , Which serves to change the power of the machine moving into a horizontal displacement. The horizontal rack guide 190 coupled with the small lower plate 130b by the plate bolts 150 and the plate nuts 160 serves to limit the movement of the horizontal racks 120 in the horizontal direction.

The rotation unit 200 includes a first gear 210, an axis holder 220, a shaft 230, a second gear 240a, a third gear 240b, a second gear cover 250a, 250b and an auxiliary device for engagement of the gear and the shaft.

The shaft holder 220 is connected to the horizontal rack guide 190 by the shaft holder fixing bolts 260a and b and is engaged with the small lower plate 130b by the plate bolt 150 and the plate nut 160. [ The shaft 230 is fixed by the shaft holder 220 and the rotation of the first gear 210 is transmitted to the second gear 240a and the third gear 240b by the shaft. At this time, the gear ratio of the second gear 240a and the third gear 240b is the same, but the gear ratio is different from that of the first gear 210, so that the gear ratio is amplified by the ratio.

The driving unit 300 includes a first vertical rack 310a, a second vertical rack 310b, a first spring 320a, a second spring 320b, a first spring guide 330a, a second spring guide 330b, A first head plate 340a, a second head plate 340b, and a head plate joining bar 350. [

The displacement amplified by the second gear 240a is converted into a linear motion by the first vertical rack 310a coupled to the first vertical rack 310a by the first head fixing bolt 360a, The first head plate 340a is linearly moved together to drive the apparatus. Similarly, the displacement of the third gear 240b is also converted into a linear motion by the second vertical rack 310b coupled to the second vertical rack 320a by the second head fixing bolt 360b. 2 The head plate 340b is linearly moved together to drive the apparatus. The first headboard 340a and the second headboard 340b are joined by the headboard joining bar 350 and have the same displacement.

A first spring 320a is provided at the lower portion of the first vertical rack 310a to prevent the headboard from diving and bear the load of the head and neck portions and to provide restoring force to the first vertical racks so that the headboards 340a, . At this time, the first spring guide 330a fixed to the small lower plate 130b limits the path of the first spring 320a in the vertical direction. Likewise, a second spring 320b is provided below the second vertical rack 310b. At this time, the second spring guide 330b fixed to the small lower plate 130b restricts the path of the second spring 320b in the vertical direction. At this time, the displacement of the spring is the same as the displacement of the vertical racks 310a, b.

FIG. 3 is a state diagram illustrating an operation principle and a use method of a pillow device for a patient with cervical intervertebral disc prolapse according to the present invention. Hereinafter, the principle of operation of the pillow device according to the present invention will be described with reference to FIG.

When electric current is supplied to the shape memory alloy wire 110 by the power supply device and the wire is contracted due to the thermal effect of the current, the horizontal rack 120 connected to the wire makes linear motion, and the first gear 210 Is rotated. When the rotation of the shaft connected to the first gear 210 is transmitted by the rotation of the second gear 240a and the third gear 240b, the first vertical rack 310a and the second vertical rack 310b are amplified The vertical displacement is reduced. As the head plates 340a, b connected thereto are lowered, the back of the user's head is lowered, and the cervical spine extension motion is induced. The shape memory alloy wire 110 is loosened again and the first vertical rack 310a and the second vertical rack 320b are rotated by the restoring force of the first spring 320a and the second spring 320b, The second gear 240a and the third gear 240b are rotated and the first gear 210 connected to the same axis is also rotated so that the horizontal rack 120 connected to the first gear 210 rotates And a linear motion is performed. This action causes the head plates 340a, b to return to the initial position, and the head and the neck of the user rises again. It is more effective to use a support cushion (400) that heightens the shoulder portion to further improve the degree of cervical extension of the user.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: power unit 200:
300: driving part 110: shape memory alloy wire
120: horizontal rack 130a: large baffle
130b: small bottom plate 140a: first wire fixing base
140b: second wire fixing table 150: plate bolt
160: Plate nut 170: Guide bearing
180: Guide bearing fixing bolt 190: Horizontal rack guide
210: first gear 220: shaft holder
230: shaft 240a: second gear
240b: third gear 250a: second gear cover
250b: third gear cover 260a, 260b: shaft holder fixing bolt
310a: first vertical rack 310b: second vertical rack
320a: first spring 320b: second spring
330a: first spring guide 330b: second spring guide
340a: first headboard 340b: second headboard
350: head plate joining bar 360a: first head plate fixing bolt
360b: second head plate fixing bolt 400: pedestal

Claims

A power section for fixing the shape memory alloy wire and providing a force to the horizontal rack through a change in length;
A first gear for converting the motion of the horizontal rack into a rotational motion; a shaft for transmitting rotational motion of the first gear to the second gear and the third gear; A second gear, and a third gear; And
A first vertical rack for converting the rotary motion of the second gear into a linear motion, a second vertical rack for converting the rotary motion of the third gear into a linear motion, and a head plate fixed to the first vertical rack and the second vertical rack And a driving unit for driving the cervical intervertebral disc prolapse patient.
The method according to claim 1,
Characterized in that both ends of the shape memory alloy wire are fixed by a wire fixing portion and the end portion of the wire is insulated.
The method according to claim 1,
Wherein when the electrode is connected to both ends of the shape memory alloy wire so as to flow, power is provided in a manner that the wire is contracted due to the temperature rise due to the heat application of the current.
The method according to claim 1,
Characterized in that both ends of the shape memory alloy wire are fixed across several guide bearing devices so as to ensure a sufficient length for driving within the device.
The method according to claim 1, 2, or 3,
Wherein the wire is wrapped with an insulating material for insulation of the shape memory alloy wire.
The method according to claim 1 or 3,
In the pillow device for a cervical intervertebral disc herniation patient according to the present invention, a first through hole and a second through hole are formed in a horizontal rack, and an end of the shape memory alloy wire is inserted into a first through hole And the entirety of the horizontal rack is moved through the second through hole and the tension generated at the time of contraction while both ends are fixed.
The method according to claim 1 or 6,
Wherein the horizontal rack guide restricts the horizontal rack to move in the horizontal direction and has a structure in which the horizontal rack and the first gear are engaged by engagement with the shaft holder.
The method of claim 1 or claim 7,
Wherein the first shaft, the second shaft, and the third shaft are fixed by a bearing of the shaft holder so as to be rotatable only, and the first gear, the second gear, and the third gear are fixed in parallel with the shaft. .
The method of claim 8,
Wherein the first gear, the second gear, and the third gear rotate at the same rotational speed.
The method of claim 8,
Wherein a displacement is amplified by a difference in gear configuration ratio between the first gear and the second gear,
And the gear ratio of the second gear and the third gear is 1: 1, so that the two gears have the same displacement amplification.
The method according to claim 1,
The second gear and the first vertical rack are vertically connected by the vertical rack guide included in the second gear cover and the third gear and the second vertical rack are connected by the vertical rack guide included in the third gear cover Wherein the pillars are vertically connected to each other.
The method according to claim 1 or 3,
An initial load is supported by a first spring fixed to a lower portion of the first vertical rack, a first spring is compressed when the first vertical rack is lowered, and a second spring is fixed to a lower portion of the second vertical rack And the second spring is compressed when the second vertical rack is lowered. &Lt; Desc / Clms Page number 20 >
The method according to claim 1 or 12,
A first spring guide in the form of a circular cylinder passes through a first spring and a third through hole formed in the first vertical rack and a second spring guide in the form of a circumference is formed in the second spring and the second vertical rack Through the fourth through hole of the cervical intervertebral disc prolapse patient.
The method according to claim 1 or 12,
Wherein the head plate, the first vertical rack, and the second vertical rack are fixed, and when the two vertical racks are driven, the head plate is also driven in the vertical direction.