JPH0215459Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a chair-type traction machine for medical use.

Prior Art As a prior art, there is Utility Model Application Publication No. 177129/1983.
In this invention, the waist part 2 of a bed consisting of a back part 1, a waist part 2, and a leg part 3 is supported by a base part 4, and this bed can be transformed into a reclining chair and has a traction wire 5. The electric traction means is built into the base part 4.

Problems to be solved by the invention In the conventional device, the back part 1 and the foot part 3 are connected to a connecting rod 6.
are connected and tilt together at the same time. For example, when the back portion 1 is moved from an upright position to a horizontal position, the foot portions are moved from a hanging position to a horizontal position. When performing lumbar traction, the back part 1, lumbar part 2, and leg part 3 are used as one horizontal plane, so the length in the longitudinal direction of the top surface of the device is long from the traction arm 7 to the bottom of the leg part 3. This has the drawback that the space occupied by the entire device becomes large.

Furthermore, it is well known that in the shrimp-shaped posture with the patient's back 1 tilted forward and the knees raised, the spine is enlarged at the back, and therefore the shrimp-shaped posture is effective for lumbar traction. However, the conventional device described above has a drawback in that it is not possible to easily place the patient in a shrimp-shaped position and perform lumbar traction.

Purpose of the invention The purpose of the invention is to solve the drawbacks of conventional devices, to reduce the space occupied by the device, and to provide a device that allows an effective therapeutic posture.

Means for Solving the Problems The present invention provides a chair 12 in which a seat 9 is provided on the upper part of an underframe 8, and a backrest 11 is provided at the rear of the upper part of the underframe 8 via a backrest hinge 10. A traction arm 7 is extended from the tip of the backrest portion 11 via an arm hinge 34, and a traction mechanism 40 is housed inside the underframe 8. The seat portion 9 is constructed by providing a sliding seat 16 on the upper part of a sliding frame 15 that slides in the front-rear direction of the chair 12 in conjunction with the sliding frame 15 .
This is a chair-type traction machine in which foot pads 59 are provided in front of the sliding seat 16 via pad hinges 57.

Moreover, the armrest 23 is provided on the sliding frame 15 via the armrest hinge 22.

Further, in the traction mechanism 40, a neck winding mechanism 44 and a waist winding mechanism 45 are connected to a single electric motor 41 via fitting clutches 43, 43, which operate independently. The tips of the neck winding wire 46 and the waist winding wire 47 to which the proximal ends are fixed are each fixed to one detector 48 that detects traction force, and the neck winding wire 4
6. The middle part of the waist winding wire 47 is a movable pulley 4
9, 50, and the movable pulley 49,
The tips of the neck traction wire 36 and the waist traction wire 70 whose base ends are fixed to the neck brace 68 or the sliding frame 15 are hooked to the neck brace 68 or the sliding frame 15.

Embodiment A seat part 9 is provided on the upper part of the underframe 8, and a backrest part 11 is attached to the rear of the upper part of the underframe 8 via a backrest hinge 10.
The chair 12 is formed by providing the following.

The seat part 9 consists of a sliding frame 15 and a sliding seat 16,
The sliding frame 15 is placed on rails 14 provided horizontally above the left and right sides of the underframe 8, and the sliding frame 15 is slidable in the front and rear directions with respect to the underframe 8 by rollers 17. . The sliding frame 15 has a step-like shape when viewed from the side, and is made by connecting a roller mounting frame 75 on the lower side and a rail frame 76 on the higher side with a vertical frame 77. Two rollers 17 are provided protruding from the left and right sides of the roller mounting frame 75.

Further, the end of the waist traction wire 70 is fixed to the vertical frame 77.

The sliding seat 16 is a rail portion 7 provided on a rail frame 76.
4 so as to be slidable in the front-rear direction of the chair 12.

A friction body 18 that presses into contact with the lower surface of the sliding frame 15 is provided on the underframe 8 below the sliding seat 16 . A brake rod 19 with the friction body 18 attached to its tip is attached to the underframe 8, a stop pedal 20 for pushing up the brake rod 19 is provided outside the underframe 8, and the brake rod 19 is pushed up further and locked. A release pedal 21 for releasing the lock is provided alongside the stop pedal 20.

When the sliding frame 15 is moved to the rearmost end and the stop pedal 20 is pressed to fix the sliding body 15, the sliding seat 16 is also held between the backrest part 11 and the front end of the rail part 74 and fixed. is composed of

Armrests 23 are provided on the upper surface of both left and right sides of the roller mounting frame 75 via armrest hinges 22 so as to face upward. The armrest 23 is curved toward the front horizontal direction from the middle of the extension.

A hook 25 is provided at the tip of the armrest 23 to hang a waist brace 24 attached to the waist of a human body.

A reinforcing plate 26 is attached to the curved inside of the armrest 23, and the armrest 23 is provided on the sliding frame 15 so as to be rotatable about the armrest hinge 22.

At the end of rotation when the armrest 23 is rotated downward, a hook 27 protruding from a part of the lower end of the reinforcing plate 26 is attached.
is hooked to a stopper 28 provided on the side of the underframe 8. Although detailed illustrations are omitted, the stopper 28 has a plate that is pushed in one direction by a spring to catch and fix the hook 27 that has entered the stopper 28, and the hook can be locked by manually sliding the plate in the direction of the spring. The tool 27 is of a well-known construction and is removable.

The backrest portion 11 is pivotally connected to a backrest hinge 10 provided on the underframe 8 toward the rear end of the seat portion 9, and a frame body 29 serving as the core of the backrest portion 11 extends downward from the backrest hinge 10. A gas spring 30 is connected between the extension end 78 and the front side wall 79 of the underframe 8 . In the gas spring 30, a base end portion of a piston 81 is inserted into a cylinder 80, and a push rod 82, which penetrates inside the piston 81, is protruded by a slight length from the tip of the piston 81.

A push lever 31 is provided in contact with the end of the push rod 82, the push lever 31 is connected to a wire 32, and a reclining pedal 33 for pulling and relaxing the wire 32 is provided below the outside of the underframe 8.

There is a push valve (not shown) inside the gas spring 30, and the reclining pedal 33
By stepping on or releasing the button, the push rod 82 acts to open or close the push valve, allowing the gas spring 30 to expand and contract or to be fixed.

An arm hinge 34 is provided at the tip of the backrest portion 11 shown in FIG. 8, and the base end of the traction arm 7, which can be rotated and fixed within a predetermined angle range, is pivotally connected to the arm hinge 34. Ru. The traction arm 7 has a pipe bent into an inverted U shape when viewed from the front, and is bent into a dogleg shape when viewed from the side with the tip of the traction arm 7 directed toward the front of the chair 12. At the intermediate portion of the traction arm 7, hooks 72, 72 are provided for hanging an armpit brace 71 attached to the patient's armpit. Arm pulleys 73, 73 to which the neck traction wire 36 is engaged are provided at the tip and base ends of the traction arm 7, respectively. The base end of the traction arm 7 with a keyway 39 carved therein is fitted onto the outside, and the shaft 38 is attached to the end of the shaft 38.
By pushing the cap 13 provided integrally with the tow arm 7 against the spring, the key groove 39 at the base end of the traction arm 7 and the key 37 of the shaft 38 are disengaged, so that the shaft 38 is attached to the support member at the tip of the backrest portion 11. 35 and configured. The shaft 38 is prevented from rotating relative to the support 35 by a key 37, but is allowed to slide freely in the axial direction. When performing lumbar traction, move traction arm 7 to chair 1.
2, and the traction arm 7 is fixed so that the traction arm 7 can be rotated from this position toward the general extension direction of the backrest 11 during cervical traction. 7. The keyway 39 is carved at the base end.

In the traction mechanism 40, an electric motor 41 serving as a rotating power source is connected to a speed reducer 42, and the output of the speed reducer 42 is connected to a neck winding mechanism 44 and a waist winding mechanism 45 via a fitting clutch 43. The base ends of a neck winding wire 46 and a waist winding wire 47 are fixed to the waist winding mechanism 45. This neck winding wire 46 and waist winding wire 47
The tips of each of the neck winding wires 4 are integrated and fixed to a single tractive force detector 48.
A movable pulley 49 is provided in the middle of tensioning the wire 6, and a movable pulley 50 is provided in the middle of tensioning the waist winding wire 47. Shaft fixing frame portion 83 of movable pulleys 49, 50
A neck traction wire 36 and a waist traction wire 70 are connected to.

In the detector 48, a load spring 53 is fitted onto a shaft 52 suspended from the center of a disc 51, and the shaft 52 is inserted through a hole 55 formed in a horizontal crosspiece 54 fixed to the underframe 8. A potentiometer 56 is provided on a crosspiece 54 which is suspended parallel to the shaft body 52 and below the disc 51. A neck winding wire 46 and a waist winding wire 47 are fixed to the end of the shaft body 52.

The drive of the electric motor 41 and the operation of the fitting clutch 43 are driven by the operation of various switch groups (not shown) housed in an operation box 69 fixed to an appropriate position such as the side of the underframe 8. 36 and the traction force of the waist traction wire 70 are also set using a volume (not shown) housed in the operation box 69.

Pad arms 58 are pivotally connected to pad hinges 57 provided on the left and right sides of the front end of the sliding seat 16, respectively.
A foot pad 59 made of cylindrical sponge is horizontally fixed between the ends of both bread arms 58.

In the pad hinge 57, a pad shaft 61 passes through a receiver 60 protruding from the sliding seat 16, and the base end of the pad arm 58 contacts the receiver 60 and is passed through the pad shaft 61. The claw 63 of the claw cap 62 placed over the end of the pad shaft 61 is configured to pass through a small hole 64 drilled at the base end of the pad arm 58 and also to fit into a small hole 65 drilled in the receiver 60. .

When the claw cap 62 is slid toward the shaft end of the pad shaft 61, the claw 63 comes out of the small hole 65 of the receiver 60, and the claw cap 62 is pushed against the pad shaft 61 while being pushed by the spring 66. It is fitted onto the outside so that it can freely slide in the axial direction. A plurality of small holes 65 are bored on the circumference of the receiver 60 at equal distances from the pad shaft 61.

Effect The function and usage of the present invention will be explained.

A patient to be subjected to traction treatment is placed on a chair 12 of a traction device formed into a chair shape. When a patient gets on and off the chair 12, the patient gets on and off from the front of the chair 12, but if the patient releases the stopper 28 on the right or left armrest 23 and then lifts the armrest 23 upward and rotates it, the patient can get on and off from the side of the chair 12. You can also get on and off the train.

When getting on and off, move the sliding frame 15 backwards, then step on the stop pedal 20 to press the friction body 18 against the sliding frame 15 to prevent the sliding frame 15 from sliding, and at the same time as shown in FIG. The sliding seat 16 is then held between the backrest portion 11 and the front end of the rail portion 74 of the sliding seat 15 to prevent the sliding seat 16 from sliding. When performing lumbar traction treatment after the patient is seated, the release pedal 21 is depressed and the friction body 18 is pulled down by the brake spring 67, allowing the sliding frame 15 and the sliding seat 16 to slide freely.

We will describe the operations and effects when performing cervical traction treatment using the invented device with a patient on it.

As shown in FIG. 1, the patient stands with the backrest 11 slightly tilted backwards, and the patient is fitted with a neck brace 68 that hooks the chin and lower part of the head, and the patient is made to wait in a relaxed posture while sitting.

The electric motor 41 is operated by operating the switches etc. on the operation box 69.
is driven, the fitting clutch 43 is connected, the neck winding mechanism 44 is operated, and the neck winding wire 46 is wound up. The tension applied to the neck winding wire 46 is transmitted to the neck traction wire 36, pulling the neck brace 68 and applying traction to the patient. The traction force applied to the patient is detected by a detector 48.

The detector 48 uses a potentiometer 56 to detect the displacement of the load spring 53 contracted by the tension of the neck winding wire 44, and transmits this detected value to the operation box 6.
9 is converted into the tension of the neck traction wire 36.

Next, we will discuss cases in which lumbar traction treatment is performed.

The operator steps on the reclining pedal 33 and pulls the push lever 31, puts the gas spring 30 in a telescopic state, tilts the backrest 11 back to an appropriate angle, and then presses the reclining pedal 33.
is released to prevent the gas spring 30 from expanding and contracting, and fix the backrest 11 in an appropriate backward position.

The cap 13 of the arm hinge 34 is pressed against the spring to bend the traction arm 7 toward the front of the chair 12, and after bending, the cap 13 is released to fix the traction arm 7 at the bent position.

The foot pads 59 supporting the lower part of the knees of the patient lying on the chair 12 are positioned upward by rotating the pad hinges 57 about the axis, thereby placing the patient in a kneeling position as shown in FIG.

The pad hinge 57 is constructed by pulling the claw cap 62, removing the claw 63 from the small hole 65 of the receiver 60, rotating the pad arm 58 to the appropriate position, and then releasing the claw cap 62. The pad arm 58 is fitted into the fitting 60 and fixed to the receiving fitting 60.

The electric motor 41 is operated by operating the switches etc. on the operation box 69.
This driving force drives the waist winding mechanism 45 via the reducer 42 and the fitting clutch 43 to wind the waist traction wire 70. Waist winding wire 4
The tension of 7 is applied to the waist traction wire 7 via the movable pulley 50.
0, and the tension of the waist traction wire 70 is detected by the detector 48.

The waist traction wire 70 is connected to a plurality of underframe pulleys 84.
The sliding frame 15 having the armrest 23 is towed through. A lumbar brace 24 attached to the patient's lower back is hooked to a hook 25 at the tip of an armrest 23 to pull the patient's lumbar vertebrae.

The upper body is equipped with a chest brace (not shown) or a side brace 71
is hung on the hook 72 of the traction arm 7 to prevent the upper body from moving toward the lower body.

Effects of the invention: The traction arm, which is provided at the tip of the backrest via an arm hinge, is configured to be bent toward the front of the chair, and there is no foot part to support the lower legs as in conventional devices, and the traction arm is arranged so that it can be bent toward the front of the chair. Since the chair is configured with foot pads that can be supported to create a kneeling position, the space occupied by the chair is limited, making effective use of the room and allowing it to be installed even in small rooms.

In addition, since the armrest is configured to rotate around the armrest hinge, patients with back pain can easily get on and off by opening the armrest upward when getting on and off the chair, which is very advantageous in terms of use.

In addition, the lumbar and cervical vertebrae are pulled by a single electric motor, and a gas spring is used to set the backward tilt angle of the backrest so that it can be manually set, simplifying the device's configuration. This resulted in a significant reduction in manufacturing costs.

[Brief explanation of the drawing]

Attached Figures 1 to 12 show an embodiment of the present invention; Figure 1 is a side view when performing cervical traction, Figure 2 is a side view when performing lumbar traction, and Figure 3 is a front view. Figure 4 is a transparent side view of the underframe, Figure 5 is a transparent side view of the underframe, Figure 6 is a perspective view of the sliding frame, Figure 7 is a transparent side view of the underframe, and Figure 8 is a transparent side view of the underframe. FIG. 9 is a cross-sectional view of the arm hinge, FIG. 9 is a view showing the traction mechanism, FIG. 10 is a cross-sectional view of the pad hinge, FIG. 11 is an enlarged cross-sectional view of the connecting portion between the gas spring piston and the underframe, and FIG. Figure 12 is a cross-sectional view of the arm hinge, the first
FIG. 3 shows an overall side view of the conventional device, with only the base section seen through. 7... Traction arm, 8... Underframe, 9... Seat,
10...backrest hinge, 11...backrest part, 1
2...Chair, 15...Sliding frame, 16...Sliding seat,
22... Armrest hinge, 23... Armrest, 34
...Arm hinge, 40... Traction mechanism, 41...
...Electric motor, 48...Detector, 57...Hinge for pads, 59...Leg pads, 68...Neck brace.

Claims (1)

[Scope of utility model registration request] A seat part 9 is provided on the upper part of the underframe 8, and a backrest part 11 is attached to the rear of the upper part of the underframe 8 via a backrest hinge 10.
A traction arm 7 is attached to the tip of the backrest 11 of the chair 12 with an arm hinge 34.
is extended, and a traction mechanism 40 is provided inside the underframe 8.
a sliding frame 15 that is placed on the underframe 8 and slides in the front and back direction of the chair 12 in conjunction with the traction mechanism 40;
The seat part 9 is constructed by providing a sliding seat 16 on the upper part of the sliding frame 15, an armrest 23 is provided on the upper part of the sliding frame 15, and a foot pad 59 is provided in front of the sliding seat 16 via a pad hinge 57. In the arm hinge 34, a shaft 38 is fitted and held in a support 35 extending at the tip of the backrest portion 11 in a direction perpendicular to the extending direction of the support 35. The proximal end of the towing arm 7 is externally fitted and held at 38, and when one end of the shaft 38 is pushed in the axial direction against the spring, the towing arm 7
The armrest 23 is unfixed to the shaft 38 and becomes freely rotatable, and a hook 25 is formed at the tip of the armrest 23 to hang a string portion of a waist brace 24 attached to the waist of a human body. Chair type traction machine.