JP2010279419A - Chair type traction therapy apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chair type traction therapy apparatus performing comfortable traction therapy, and suppressing side pains of a person to be treated by reducing force applied to the side part of the person. <P>SOLUTION: The chair type traction therapy apparatus includes a chair portion which includes a seat portion and a backrest portion and is provided so as to be raised and brought down through reclining means with respect to a base portion mounted on a floor surface, and the chair type traction therapy apparatus tracts the lumbar of the person to be treated by moving the seat portion in the direction of separating from the backrest portion. In the chair type traction therapy apparatus, by a backrest portion free lock function for preventing the backrest portion 6 from sliding toward the seat portion direction during traction therapy, friction force generated on the contact surface of a backrest seat and the back part of the person to be treated is utilized, and the force applied to an abutting portion of a side pad 8 and the side part of the person to be treated during the traction therapy is reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a chair-type traction treatment apparatus for performing lumbar traction treatment.

  For a chair-type traction treatment device, after sitting down on a chair part with a seat part to be seated and a backrest part in a backward direction with respect to the base part, the side pads are brought into contact with both sides of the subject. A device that supports the body and moves the seat in a direction away from the backrest and performs traction treatment of the lumbar spine is known. (For example, see Patent Document 1 below)

  However, in the conventional chair-type traction treatment device, the force that is almost the same as the traction force generated during traction treatment is applied to both sides of the patient, so that pain is likely to occur on both sides, thus eliminating this problem. In order to do this, studies have been made on the shape and material of the side pads.

JP 2008-212407 A

  An object of the present invention is to provide a chair-type traction therapy apparatus that can perform comfortable traction therapy and that can reduce side pain by reducing the force applied to the side of the patient.

  That is, the present invention provides a chair portion having a seat portion and a backrest portion with respect to the base portion placed on the floor surface so as to be able to stand upside down via reclining means, and the seat portion is provided to the backrest portion. In a chair-type traction treatment device that pulls the lumbar spine of the patient by moving in the direction of separation, the chair portion includes a traction frame, and a backrest portion is slidably provided with respect to the traction frame, and the backrest is supported during traction treatment. A chair-type traction therapy apparatus having a backrest free lock function that suppresses sliding of a seat portion toward a seat.

  The present invention is provided with a backrest free lock function that suppresses sliding of the backrest in the seating direction during traction treatment, so that a frictional force is applied to the contact surface between the backrest seat and the back of the subject. Occurs and has an effect of reducing the force applied to the contact point between the side pad and the side of the person to be treated during traction treatment, and can suppress side pain. Furthermore, the effect can be exhibited without hindering the effect of suppressing the side pain due to the shape and material of the side pads.

It is the top view which made the chair part of Example 1 of this invention into the lying state. It is the front view which made the chair part of Example 1 of this invention into the lying state. It is the right view which made the chair part of Example 1 of this invention the fall state. It is sectional drawing which shows operation | movement of Example 1 of this invention. It is a fragmentary perspective view which shows the seat part and pulling frame of Example 1 of this invention. It is a block diagram which shows control of Example 1 of this invention. It is a fragmentary figure which shows the side arm part of Example 1 of this invention. It is a fragmentary sectional view which shows the backrest free lock function of Example 1 of this invention. It is a fragmentary sectional view which shows the backrest free lock function of Example 1 of this invention. It is a fragmentary sectional view which shows the backrest free lock function of Example 2 of this invention. It is a fragmentary sectional view which shows the backrest free lock function of Example 2 of this invention. It is a block diagram which shows control of Example 2 of this invention.

  The purpose is to provide a chair-type traction treatment device that can perform comfortable traction treatment and reduce side pain by reducing the force applied to the side of the subject. By using the frictional force generated on the contact surface with the back, it was realized without interfering with the results of research on the shape and material of the side pads.

  In the following description, the downward direction (seat portion 5 side) in FIG. 1 is referred to as the front direction of the chair-type traction therapy apparatus 1, and the upward direction (backrest portion 6 side) is referred to as the rear direction. As shown in FIGS. 1, 3, and 7, the chair-type traction treatment device 1 includes a base portion 3 placed on the floor via an adjuster, and a chair portion that is supported by the base portion 3 and on which a patient is seated. It consists of 2 etc. The chair portion 2 abuts on both sides of the patient during traction treatment, and has a side arm portion 4 provided with side pads 8 that support the body, and a seat portion that supports the lower body extending from the waist of the patient to the lower limbs. 5, a backrest 6 that receives the upper body from the back to the head, a side arm 4, a seat 5, and a traction frame 7 that slidably supports the backrest 6.

  As shown in FIG. 5, the traction frame 7 is formed by connecting a square pipe 9 and a square pipe 10 with an end fitting 11 and a connecting fitting 12, and is formed between the square pipe 9 and the square pipe 10 in a substantially U shape. A pair of backrest rail fixing metal fittings 13 are provided and fixed to the end face metal fittings 11 and the connecting metal fittings 12. The pair of left and right backrest rail fixing brackets 13 are provided with a pair of left and right backrest rails 14 whose end surfaces are formed in a substantially C shape. Further, the traction frame 7 is provided with a pair of left and right side arm rails 15 and a seat rail 16 whose end surfaces are formed in a substantially C shape.

  As shown in FIG. 4, the chair portion 2 is pivotally attached to the base portion 3 with a support shaft 17, and can stand up and down in the front-rear direction indicated by a double arrow A in FIG. 4 by a reclining actuator 19 as the reclining means 18. Is provided. The cylinder portion 20 of the reclining actuator 19 is pivotally attached to the bottom plate 22 of the base portion 3 and the tip of the rod portion 21 is pivotally attached to the connecting fitting 12 via a bracket 23. The operation | movement which concerns on the expansion-contraction of the rod part 21 is controlled by the control part 24 (refer FIG. 6) of the chair type traction treatment apparatus 1. FIG. In FIG. 4, when the contracted rod portion 21 is operated in the extending direction, the reclining operation is performed in the direction in which the chair portion 2 as a whole rises (forward direction). The chair part 2 is controlled so that the reclining operation is completed when the extension of the rod part 21 reaches the maximum.

  Conversely, when the extended rod portion 21 is actuated in the contracting direction, the reclining operation is started in a direction (rearward direction) in which the entire chair portion 2 falls. When the rod portion 21 contracts by a predetermined amount, the contracting operation is stopped by the control portion 24, and the reclining operation in the falling direction is controlled at a predetermined falling position indicated by a solid line in FIG.

  As shown in FIG. 3, the seat portion 5 includes a seat surface portion 25 on which the patient sits down and a seat surface support frame 26 that is fixed to the back side of the seat surface portion 25 and supports the seat surface portion 25. As shown in FIG. 2, a plurality of rolling rollers 27 are disposed on the right side surface of the seating surface support frame 26, and the rolling rollers 27 are fitted to the seating rails 16 so as to be slidable along the longitudinal direction of the seating rails 16. Match. Although not shown, a plurality of rollers are similarly disposed on the left side surface of the seat support frame 26.

  As shown in FIG. 4, one end of a load cell 31 as a traction load detection unit 30 that detects a thrust value of a traction actuator 29 as a traction means 28 is fixed to the coupling metal 12, and a traction actuator is connected to the other end of the load cell 31. 29, the bottom portion of the cylinder portion 32 is pivotally attached, the rod portion 33 extends in the front-rear direction substantially in parallel with the extending direction of the seat rail 16, and the tip portion is fixed to the seating surface support frame 26. 34 is attached to the shaft. When the rod portion 33 of the pulling actuator 29 is expanded and contracted, the rolling roller 27 rolls along the inner periphery of the seat rail 16, and the seat portion 5 smoothly reciprocates in the direction of the double arrow B shown in FIG.

  Information on the thrust value detected by the load cell 31 is sequentially input to the control unit 24 (see FIG. 6). Although not described in detail because it is not directly related to the present invention, the load cell 31 detects the weight value of the subject when the subject is seated on the chair portion 2 in a predetermined standing position. Also plays. That is, the detected weight value detected by the load cell 31 is input to a traction force calculation setting unit (not shown) provided in the control unit 24, and the traction force switching setting unit provided in the operation panel unit 35 described later in this traction force calculation setting unit. The ratio that is appropriately switched and input from, specifically, one of the ratios of 20, 30, 40, and 50% is multiplied by the detected body weight value, and the multiplied value is automatically set as the set traction force value. The For example, when the weight value of the patient to be treated by the load cell 31 is 60 kgf and the ratio selected and set in the traction force switching setting unit is 20%, the set traction force value of 60 kgf × 20% = 12 kgf is automatically set. It will be.

  The automatically set traction force value is input to the control unit 24. The control unit 24 sequentially compares the thrust value of the traction actuator 29 detected by the load cell 31 with the automatically set traction force value, and the thrust value is set as the set traction force. Control relating to the extension operation of the rod portion 33 during towing is performed so as to match the value.

  The backrest part 6 includes a backrest sheet 36 that receives the upper body from the back part of the subject to the head, a slide rail bracket 37 that is fixed to the surface of the backrest sheet 36 on the traction frame 7 side, and a slide rail bracket 37. A stopper plate 38 is provided. A slide plate 39 is provided on the slide rail bracket 37 so as to be slidable within the backrest rail 14.

  As shown in FIG. 7, the side arm portion 4 has a pair of left and right side arms 40 and a side arm support frame 41, and each of the pair of left and right side arms 40 is provided with a side pad 8 for supporting the patient's body at one end. The other end is pivotally attached to the side arm support frame 41 so as to be rotatable. The side arm support frame 41 is rotatably provided with a plurality of rolling rollers 42, and the rolling rollers 42 roll along the inner periphery of the side arm portion rail 15.

  The tip of the rod portion 45 of the side arm actuator 43 serving as the side arm drive means 59 is pivotally attached to the side arm support frame 41, and the cylinder portion 44 is pivotally attached to the end face fitting 11. The side arm portion 4 moves smoothly in conjunction with the expansion and contraction of the rod portion 45 of the side arm actuator 43, and the side pad 8 reciprocates in the direction of the double arrow C shown in FIG.

  As shown in FIGS. 8 and 9, the chair-type traction treatment device 1 has a backrest free lock function 46, which includes a stopper fitting 47, a release lever 48, a stopper shaft 49, A torsion spring 51 is used. The release lever 48 is rotatably supported by a stopper shaft 49 fixed to the inner surface of the backrest rail fixing bracket 13. The release lever 48 is provided through a hole 50 provided in a surface substantially orthogonal to the surface to which the stopper shaft 49 of the backrest rail fixing bracket 13 is fixed. The stopper fitting 47 is fixed to the side arm support frame 41. When the rod part 45 of the side arm actuator 43 extends and the side arm part 4 moves in the forward direction, the stopper metal part 47 contacts the one end of the release lever 48. The release lever 48 is in contact with and is provided at a position where one end of the release lever 48 is rotated forward. The torsion spring 51 urges the release lever 48 in the rotational direction to contact the front end face of the hole 50. When the release lever 48 is in contact with the front end face of the hole 50 as shown in FIG. 9, the other end of the release lever 48 can come into contact with the stopper plate 38, but as shown in FIG. When one end of 48 is in contact with the stopper fitting 47 and rotating in the forward direction, the other end of the release lever 48 cannot be brought into contact with the stopper plate 38.

  As shown in FIG. 5, the seat support frame 26 in the rearward direction of the seat section 25 is provided with a substantially U-shaped waist support member 52 so as to support a portion from the back side to the left and right sides of the patient's waist. The lumbar support member 52 is composed of three left, middle, right members 52a, 52b, 52c arranged at left, middle, and right positions, and between the left member 52a and the intermediate member 52b and between the intermediate members. A slight gap is provided between 52b and the right member 52c. The base ends of the band-like members 53a and 53b wound around the waist of the patient are inserted into the gaps, and the base ends are fixed to the seat support frame 26. The belt-like members 53a and 53b form a waist orthosis 53 that fixes the waist of the patient to the seat 5. Although not shown, a hook-and-loop fastener of Velcro (registered trademark) is attached to the front end side of the band-like members 53a and 53b, and the band-like members 53a and 53b are overlapped on the front end side as shown in FIG. It is configured so that it can be combined.

  In addition, the chair-type traction therapy apparatus 1 is provided with an operation panel 35 that is rotatably supported by a support arm 54 that protrudes rightward from the right side surface of the backrest 6 as shown in FIG. Yes. In addition to the traction force switching setting unit described above, the operation panel unit 35 includes a treatment time setting unit for setting the traction treatment time, a duration setting unit for setting the traction duration, and a traction pause time. Various switches such as a pause time setting section to be set, traction treatment start / pause switch, and various display sections (not shown) are provided.

  In FIG. 1, 55 is a pillow that is detachably provided on the upper surface of the backrest sheet 36 by appropriate means such as a hook-and-loop fastener of Velcro (registered trademark), and in FIG. 3, 56 is an elbow rest fixed to the traction frame 7. It is a tool. Reference numeral 60 denotes a chair part cover attached to the chair part 2, and 61 denotes a seat part cover attached to the seat part 5.

  Next, operation | movement of the chair type traction therapy apparatus 1 which concerns on embodiment of this invention is demonstrated. In addition, the chair part 2 shall be in the state of the predetermined standing position shown with the dashed-two dotted line of FIG. A therapist, such as a doctor, seats the patient on the chair 2, wraps a waist brace 53 around the waist, overlaps and joins the distal ends, and fixes and holds the patient on the seat 5. The position of both arms is changed so that the position of the side pad 8 is between the trunk and both arms of the patient. Next, after setting the set traction force value, the traction treatment time, the traction duration, the traction pause time, and the like on the operation panel unit 35, the traction treatment start switch is operated to start the traction treatment.

  When the traction treatment is started, the chair type traction treatment device 1 starts a reclining operation in which the rod portion 21 of the reclining actuator 19 is contracted and the entire chair portion 2 is laid down. When the chair part 2 reaches a predetermined lying position, the reclining operation is terminated. The position of the side arm part 4 when the chair part 2 finishes the reclining operation at the predetermined lying position is hereinafter referred to as a lower limit position. Next, the rod part 45 of the side arm actuator 43 is contracted to bring the side pad 8 provided on the side arm part 4 into contact with both side parts of the patient. Further, the release lever 48 changes from a state in which the stopper fitting 47 fixed to the side arm support frame 41 is in contact with one end to a state in which it is in contact with the front end face of the hole 50 provided in the backrest rail fixing fitting 13. To do.

  Further, the backrest portion 6 slidably provided with respect to the traction frame 7 is in contact with the seat portion 5 by its own weight before the reclining operation is started, but in the backward direction along with the movement of the center of gravity of the patient to be treated by the reclining operation. Slide to prevent the patient's body from becoming cramped.

  After the side pad 8 comes into contact with both sides of the patient, the traction operation is started. Hereinafter, the position of the seat part 5 when the chair part 2 finishes the reclining operation at the predetermined lying position will be referred to as a lying stop position. First, the rod portion 33 is extended until the load cell 31 detects that the thrust value of the traction actuator 29 has reached the set traction force value. The seat portion 5 moves forward along the seat rail 16 by the extension operation of the rod portion 33. At this time, since the patient is pulled forward, the backrest 6 slides forward in contact with the back of the patient, but the stopper plate 38 is connected to the other end of the release lever 48. At the point of contact, the forward movement is suppressed and stops. In addition, by making the backrest sheet 36 into a concave shape along the trunk of the patient, the adhesion between the back of the patient and the backrest sheet 36 during traction treatment is improved, and the friction between the two is increased. The resistance can be increased.

  The control unit 24 stops the extension operation of the rod unit 33 at the same time as the detection value of the load cell 31 indicates the set traction force value. Hereinafter, the position of the seat portion 5 will be referred to as a towing position. During the duration of traction, traction treatment is performed in a state where the controller 24 maintains the set traction force value. When it is detected by the timer means that the duration of traction has ended, the controller 24 starts the contraction operation of the rod portion 33, and the traction pause operation is started. The rod portion 33 is contracted until the seat portion 5 is restored and moved to a substantially intermediate position between the pulling position and the stop position when lying down. The position where the rod part 33 is contracted and the seat part 5 is restored and moved is not limited to the intermediate position described above.

  After repeating the above-described continuous traction operation and temporary pause operation within the set treatment time range, when the timer means instructs that the treatment time is completed, the control unit 24 controls the contraction operation of the rod portion 33. Then, the seat 5 is restored and moved to the stop position when lying down (the position indicated by the solid line in FIG. 4), and the traction operation is completed. Thereafter, the rod portion 45 of the side arm actuator 43 is extended to move the side arm portion 4 to the lower limit position. At this time, the release lever 48 is brought into contact with one end of the stopper fitting 47 fixed to the side arm support frame 41 from the state in which the release lever 48 is brought into contact with the front end face of the hole 50 provided in the backrest rail fixing fitting 13. Change. Next, a reclining operation is started in which the rod portion 21 of the reclining actuator 19 is extended to raise the chair portion 2 as a whole. When the chair part 2 reaches a predetermined standing position, the reclining operation is terminated. At this time, the backrest 6 is in contact with the seat 5 due to its own weight.

  In the second embodiment, the backrest free lock function 46 of the first embodiment is implemented using a solenoid 57.

  As shown in FIGS. 10 and 11, in the backrest free lock function 46 of the second embodiment, the solenoid 57 is fixed to the inner surface of the backrest rail fixing bracket 13, and the plunger 58 of the solenoid 57 passes through the hole 50. It is provided as possible.

  The solenoid 57 is a push type having a return spring. The plunger 58 protrudes when applied, and returns to a predetermined position by the action of the return spring when not applied. Control of application and non-application of the solenoid 57 is performed by the control unit 24 (see FIG. 12).

  When the traction treatment is started, the chair type traction treatment device 1 starts a reclining operation for lying down the entire chair portion 2. When the chair portion 2 reaches the predetermined lying position, the reclining operation is terminated, and the rod portion 45 of the arm arm actuator 43 is contracted to move the side pads 8 provided on the arm arm portion 4 to both sides of the subject. Make contact. Next, the control unit 24 performs control to be applied to the solenoid 57 and causes the plunger 58 to protrude. At this time, the plunger 58 can come into contact with the stopper plate 38 as shown in FIG.

  After causing the plunger 58 to protrude, the operation proceeds to a traction operation, and the rod portion 33 of the traction actuator 29 is extended to move the seat portion 5 in the forward direction. The backrest 6 slides forward while in contact with the back of the patient, but stops moving forward when the stopper plate 38 contacts the protruding plunger 58.

  After the repetition of the traction continuous operation and the pause operation within the set treatment time range, when the timer means indicates that the treatment time is completed, the control unit 24 controls the contraction operation of the rod unit 33, The seat part 5 is restored and moved to the stop position when lying down (the position indicated by the solid line in FIG. 4), and the towing operation is completed. Thereafter, the control unit 24 stops the application to the solenoid 57. The plunger 58 returns to a predetermined position by the action of a return spring. At this time, the plunger 58 cannot contact the stopper plate 38 as shown in FIG. The rod portion 45 of the side arm actuator 43 is extended to move the side arm portion 4 to the lower limit position. Next, a reclining operation is started in which the rod portion 21 of the reclining actuator 19 is extended to erect the chair portion 2 as a whole. When the chair part 2 reaches a predetermined standing position, the reclining operation is terminated. At this time, the backrest 6 is in contact with the seat 5 due to its own weight.

  The present invention provides a chair portion having a seat portion and a backrest portion with respect to a base portion placed on the floor so as to be able to stand up and down via reclining means, and the seat portion is separated from the backrest portion. It can be applied to a chair-type traction treatment apparatus that pulls the lumbar spine of the person to be treated by moving it in the direction of movement.

DESCRIPTION OF SYMBOLS 1 Chair type traction treatment apparatus 2 Chair part 3 Base part 5 Seat part 6 Backrest part 7 Traction frame 18 Reclining means 46 Backrest free lock function 48 Release lever 57 Solenoid

Claims (1)

A chair part with a seat part and a backrest part is installed on the floor so that it can stand upside down via reclining means, and the seat part moves away from the backrest part. In the chair-type traction treatment device that pulls the lumbar spine of the subject by
The chair part has a tow frame, and the back part is slidable with respect to the tow frame, and the back part has a free-lock function that prevents the back part from sliding in the seat direction during tow treatment. A chair-type traction therapy device.

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