Lumbar traction device

Abstract

To suppress a change in a positional relationship between a back of a user and a backrest part at the time of traction of a lumbar of the user, and thereby to reduce a pain in a side of the user.SOLUTION: A lumbar traction treatment device includes: a backrest part supporting an upper half of a body of a user; a side abutment part supporting a side of the user; a seat part supporting a lower half of the body of the user; waist holding means that holds the lower half of the body of the user on the seat part; a chair bed including the backrest part, the side abutment part, and the seat part; separation drive means that moves the side abutment part in a direction of separating from the seat part; and an inclination mechanism part that causes the chair bed to be tilted. The backrest part includes a high-friction part on a contact surface with the user.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lumbar traction device. [Background technology]

[0002] Several proposals have been made regarding lumbar traction devices. For example, Patent Document 1 describes a lumbar traction device in which a user sits on a seat with their back against a backrest, tightens a waist support means to hold their buttocks on the seat, and traction is performed on the lumbar vertebrae. When treatment begins, the armpit support parts move to the user's armpits. In this state, the bed on which the backrest and seat are placed tilts (reclines), and a traction mechanism is activated that separates the seat and backrest and generates a traction force, thereby traction-treating the user's lumbar vertebrae. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-12249 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the lumbar traction device described in Patent Document 1 traction the lumbar vertebrae by supporting the sides of the user. Therefore, if the positional relationship between the user's back and the backrest changes when traction is being performed on the user's lumbar vertebrae, a traction force may be applied to the user's sides, which may cause pain. [Means for solving the problem]

[0005] Therefore, the lumbar traction device of the present invention comprises a backrest portion that supports the upper body of the user, side support portions that support the sides of the user, a seat portion that supports the lower body of the user, a waist holding means that holds the lower body of the user on the seat portion, a bed base that has the backrest portion, side support portions and seat portion, a separation drive means that moves the side support portions in a direction away from the seat portion, and a tilting mechanism portion that tilts the bed base, and the backrest portion has a high-friction portion on the surface that comes into contact with the user. [Effects of the Invention]

[0006] According to the lumbar traction device of the present invention, when traction is applied to the lumbar vertebrae of a user, it is possible to suppress changes in the positional relationship between the user's back and the backrest, thereby reducing pain in the user's side. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of a lumbar traction device according to the present invention; [Figure 2] 1 is a schematic diagram of a side view of a lumbar traction device of the present invention; [Figure 3] FIG. 10 is a diagram showing the sliding structure of the backrest of the present invention. [Figure 4] FIG. 10 is a diagram showing a modified example of the high friction portion of the present invention. [Figure 5] 1 shows a connection part of the present invention. [Figure 6] 10A and 10B are diagrams showing modified examples of the connecting portion of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0008] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. Various features shown in the following embodiments can be combined with each other.

[0009] The lumbar traction device of the present invention comprises a backrest portion 1, side support portions 2, a seat portion 3, a waist support means 4, a bed base 5, a separation drive means 6, and a tilting mechanism portion 7.

[0010] The backrest 1 supports the upper body of the user, mainly the head and back. The backrest 1 is provided so as to be slidable on the bed platform 5. For example, as shown in FIGS. 2 and 3, rails 9 are provided on the backrest 1, and rollers 8 on the bed platform 5 rotate within the rails 9, allowing the backrest 1 to slide on the bed platform 5. Alternatively, multiple rollers 8 may be provided on the backrest 1, and U-shaped rails 9 on the bed platform 5 may be provided so as to be slidable.

[0011] The armpit support 2 supports the armpits of the user. The armpit support 2 is provided so that it can move on the bed 5. The movement of the armpit support 2 is controlled by a separation drive means 6. Whether the armpit support 2 has moved to the appropriate armpit position can be determined by various sensing methods, such as measuring the motor current of the electric actuator or the load on the armpits.

[0012] The seat 3 supports the lower body of the user, mainly the lower back and buttocks. The user sits on the seat 3 and receives treatment.

[0013] The waist support means 4 supports the lower body of the user, mainly the waist and buttocks, on the seat part 3. The waist support means 4 moves the waist brace by the winding force of a winding unit using a seat belt, and supports the lower body of the user on the seat part 3.

[0014] The bed 5 has a backrest 1, side rests 2, and a seat 3. The bed 5 is tilted by a tilting mechanism 7.

[0015] The separation drive means 6 moves the side support 2 on the bed 5 in a direction separating it from the seat 3. For example, as shown in FIG. 2, the side support 2 is moved by a motor incorporating a ball screw that runs parallel to the rail 9 of the backrest 1. A trapezoidal screw, a belt, a chain, or the like may be used instead of the ball screw. The separation drive means 6 may also be configured to move by the extension and contraction of an electric actuator.

[0016] The tilting mechanism 7 tilts the bed 5 by the extension and contraction of the electric actuator. During treatment, in order to minimize the effect of gravity on the user's spinal cord, the backrest 1 is tilted to a nearly horizontal position so that the user can move from a seated position on the seat 3 to a reclining position with their upper body reclined.

[0017] The lumbar traction treatment device configured as described above traction the lumbar vertebrae of a user. The user sits on the seat 3, and the lower half of the user's body is held on the seat 3 by the waist support means 4. The tilting mechanism 7 then tilts the backrest 1 to a nearly horizontal position. At this time, the armpit support 2 moves along the backrest 1 toward the user's head. Then, treatment begins with the armpit support 2 supporting the user's sides. When treatment begins, the armpit support 2 moves toward the user's head, thereby traction-driving the upper half of the user's body toward the head and traction-driving the lumbar vertebrae.

[0018] 1, the lumbar traction device of this embodiment has a high-friction portion 10 in the backrest portion 1, which has a higher coefficient of friction between the backrest portion 1 and the user compared to other portions of the backrest portion 1. This increases the frictional force at the contact surface between the user and the backrest portion 1, suppressing changes in the positional relationship between the user's back and the backrest portion 1 when traction is applied to the user's lumbar vertebrae, and reducing pain in the user's armpits.

[0019] The high-friction portion 10 is a member formed from a material with a high coefficient of friction, such as polyvinyl chloride, vinyl leather cloth, or polyurethane resin. The high-friction portion 10 may have a rough surface to provide a high coefficient of friction. The surface of the backrest portion 1 may also be resin-coated to provide a high coefficient of friction.

[0020] A plurality of high-friction portions 10 may be present in a horizontal stripe pattern or a matrix pattern as shown in Fig. 4. The number, shape and arrangement of the high-friction portions 10 are merely examples and are not particularly limited.

[0021] The high-friction portion 10 is preferably provided in the widthwise center of the backrest portion 1. This allows the high-friction portion 10 to correctly detect and support the user's sides without interfering with the movement of the armpit support portion 2 when detecting the armpit position. The widthwise direction is the widthwise direction of the lumbar traction device, as shown in Figure 1.

[0022] When the armpit support 2 moves toward the user's head, it moves on the backrest 1. At that time, the backrest 1 and the armpit support 2 move close to each other to ensure that the armpit support 2 fits securely under the user's armpits. There is a possibility that the backrest 1 and the armpit support 2 may come into contact with each other, and the high friction portion 10 may hinder the movement of the armpit support 2. As a result, the position of the user's armpit may be incorrectly detected, and treatment may not be performed in the appropriate armpit position, causing pain in the armpit.

[0023] Therefore, the high-friction portions 10 are provided in areas that are at least 5 cm away from both ends of the backrest 1 in the width direction, and are not provided in the movement area of ​​the armpit support 2. This reduces the risk of the armpit support 2 erroneously detecting the position of the user's armpits, and reduces pain in the armpits of the user. The minimum distance is more preferably 10 cm or more.

[0024] Furthermore, it is preferable that the high-friction portion 10 is located in an area at least 20 cm away from the end of the backrest portion 1 on the head side in the height direction. This prevents the high-friction portion 10 from coming into contact with the back of the user's head during traction treatment, reducing discomfort such as pulling on the user's hair and allowing the traction treatment to be performed in a relaxed state. The shortest distance is more preferably 40 cm or more.

[0025] The high-friction portion 10 is detachable from the backrest portion 1. A hook-and-loop fastener is provided at the contact point between the high-friction portion 10 and the backrest portion 1. Alternatively, a snap button or a magnetic hook may be used. The height and friction coefficient of the high-friction portion 10 can be adjusted for each user.

[0026] The armpit support 2 has a connecting portion 11 that connects the backrest portion 1 and the armpit support 2. The traction force is received by the frictional force between the armpit support 2 and the back, which further reduces pain in the armpits.

[0027] The connecting portion 11 can use a solenoid 12. The side support portion 2 has the solenoid 12, and a hole 14 through which a plunger 13 of the solenoid 12 can pass is provided in the backrest portion 1 or the rail 9. For example, a solenoid 12 of the type that protrudes the plunger 13 when energized is used.

[0028] The user sits on the seat 3 of the lumbar traction device, the armpit support 2 supports the user's armpit, and then electricity is applied to the solenoid 12. When electricity is applied, the plunger 13 of the solenoid 12 protrudes and penetrates the hole 14 in the backrest 1, connecting the backrest 1 and the armpit support 2. When treatment begins, the backrest 1 moves together with the armpit support 2 toward the user's head, as shown in Figure 5.

[0029] Therefore, the positional relationship between the backrest 1 and the user's back is unlikely to change. Furthermore, the traction force can be received by the frictional force between the side support 2 and the back. This further reduces pain in the sides.

[0030] 6, the solenoid 12 of the connecting part 11 provided on the side rest 2 may connect the backrest 1 and the side rest 2 using a link mechanism 15. For example, a protruding plunger 13 and the link mechanism 15 may be connected, and when electricity is applied, the plunger 13 is attracted, causing the link mechanism 15 to rotate around a rotation axis 16, so that teeth provided on the link mechanism 15 mesh with teeth provided on the backrest 1.

[0031] An electromagnet may also be provided in the connecting portion 11. Specifically, an electromagnet provided in the side rest 2 and a magnetic body provided in the backrest 1 may be attached to connect the backrest 1 and the side rest 2. [Explanation of symbols]

[0032] 1 Backrest 2 Armpit 3 Seat area 4 Waist holding means 5 Bed table 6 Separation drive means 7 Tilt mechanism section 8 Roller 9 Rail 10 High friction area 11 Connecting part 12 Solenoid 13 Plunger 14 holes 15 Link mechanism 16 Rotation Axis

Claims

1. A lumbar traction device comprising a backrest portion that supports the upper body of a user, side support portions that support the sides of the user, a seat portion that supports the lower body of the user, a waist support means that holds the lower body of the user on the seat portion, a bed base having the backrest portion, the side support portions, and the seat portion, a separation drive means that moves the side support portions in a direction away from the seat portion, and a tilting mechanism portion that tilts the bed base, wherein the backrest portion has a high-friction portion on the surface that comes into contact with the user.

2. 2. The lumbar traction device according to claim 1, wherein the backrest has the high friction portion at a central portion in the width direction of the backrest.

3. 2. The lumbar traction device according to claim 1, wherein the high friction portion is detachable from the backrest portion.

4. 2. The lumbar traction device according to claim 1, wherein the armpit support has a connecting portion that connects the backrest and the armpit support.

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