JP7303588B1 - Micro-vibration head and massage device with micro-vibration head - Google Patents

Abstract

A massage device equipped with a micro-vibration head is provided, which enhances longitudinal wave components of extracorporeal shock waves, reduces transverse wave components that cause patient discomfort, and can propagate vibrations of appropriate frequencies to affected areas. A massage device (10) includes a micro-vibration head unit (20), a piston head unit (40) movably arranged in the micro-vibration head unit (20), and a sleeve of the piston head unit (40) and the micro-vibration head unit (20) connected. The hexagonal bag of the piston head unit 40 is activated in a state in which the tip of the hexagonal box nut 34 of the micro-vibration head unit 20 is in contact with the surface of the affected area SK. The longitudinal wave component LW of the shock wave hits the tip of the hexagon cap nut 34 of the micro-vibration head unit 20 by repeatedly and continuously hitting the end face of the head of the hexagon bolt 24 of the micro-vibration head unit 20 with a predetermined stroke of the nut. It occurs in the affected part through the part of the body. [Selection drawing] Fig. 1

Description

The present invention relates to a micro-vibration head and a massage device provided with the micro-vibration head.

As a muscle disorder in the human body, a trigger point of the fascia (for example, as defined in Patent Document 3, a lump occurs in the muscle membrane, inhibits blood circulation in the muscle, and causes the muscle to contract. (a phenomenon that inhibits the relaxation of the muscle), for example, as shown in Patent Document 1, a stimulator equipped with a fluid injection device is used to apply extracorporeal shock waves to trigger points of the fascia in the affected area. treatment is suggested. Such a stimulator includes a contact assembly consisting of a plurality of contact members for ejecting fluid (gas or liquid) from a fluid ejection device, which will be described later, toward trigger points in the fascia, and a base for supporting the contact assembly. is composed of A fluid ejection device connected to the base body of the base is adapted to supply medicated fluid through transmission channels in the base body to the transmission channels of each contact member and to the ejection channels controlled to open and close. This results in fluid being pressurized by the injection channels of each contact member and then such pressurized fluid stimulating the fascial trigger points at the affected area.

Further, for example, as shown in Patent Document 2, a fascia gun has been proposed that massages soft tissues near joints by impact (vibration) on the soft tissues of the human body with a spherical massage head instead of fluid. there is The massage head of the fascia gun is reciprocated by a predetermined stroke via an eccentric wheel, a connecting shaft, a link and a piston respectively connected to two output shafts of a drive motor.

Japanese Patent Publication No. 2022-502123 Utility model registration No. 3232352 Japanese translation of PCT publication No. 2009-514591

With the fascia cancer disclosed in Patent Document 2, for example, when treatment of fascia adhesions in affected areas such as around the neck (around the cervical vertebrae) and around each joint is performed by applying extracorporeal shock waves as described above, the massage head is used. Patients may feel uncomfortable because the affected skin in contact with the body shakes due to the relatively large transverse wave component of the extracorporeal shock wave. In such a case, it is conceivable to further increase the frequency of the extracorporeal shock wave so as to reduce the transverse wave component of the extracorporeal shock wave.

However, if the frequency of the extracorporeal shock wave is further increased, the longitudinal wave component of the extracorporeal shock wave becomes even larger. Such accurate control becomes difficult, and there is a risk that the impact noise will become louder.

In consideration of the above problems, the present invention provides a micro-vibration head and a massage device equipped with the micro-vibration head, which enhances the longitudinal wave component of the extracorporeal shock wave when performing treatment by applying the extracorporeal shock wave to the affected area. To provide a micro-vibration head capable of transmitting vibration of an appropriate frequency to an affected part by reducing transverse wave components of extracorporeal shock waves that cause patient discomfort, and a massage device equipped with the micro-vibration head. for the purpose.

In order to achieve the above object, the micro-vibration head according to the present invention includes a sleeve detachably connected to a head connecting portion of a massage device main body, and a lid portion fixed to the distal end portion of the sleeve. A vibration transmitting member and a stimulation transducer arranged movably in the axial direction, a stimulation transducer supporting member supporting the stimulation transducer and the vibration transmitting member so as to be close to or separated from the lid, and a massage device main body. a piston head unit including a connecting shaft portion detachably arranged at the connection end arranged inside the head connection portion of the body and reciprocated, wherein the stimulating vibrator and the vibration transmitting member are connected to the piston head unit; When the connecting shaft portion is moved toward the abutting end portion, the drive control portion of the massage device main body portion is activated, and when the connecting shaft portion of the piston head unit is reciprocated, the connecting shaft of the piston head unit is moved. The abutment end portion of the portion is continuously abutted against the base end portion of the vibration transmission member so that microvibrations are propagated to the stimulating transducer via the vibration transmission member.

Further, the stimulation transducer support member may attract and hold at least the vibration transmission member with the magnetic force of a magnet so as to be able to approach or separate from the lid portion.

The abutting ends of the connecting shafts of the stimulation transducer and the piston head unit may each be formed by a metal hexagonal cap nut. The proximal end of the vibration transmitting member may be formed by the head of a hexagonal bolt.

A massage device equipped with a micro-vibration head according to the present invention has a head connecting portion, a connecting end portion disposed inside the head connecting portion and reciprocatingly moved, and a drive control portion for driving and controlling the connecting end portion. A main body, a sleeve detachably connected to the head connecting portion of the massage device main body, a vibration transmitting member and a stimulator arranged movably in the central axis direction of the sleeve on the lid fixed to the distal end of the sleeve. a stimulating vibrator, a stimulating vibrator supporting member that supports the stimulating vibrator and the vibration transmitting member so as to be able to approach or separate from the lid, and a stimulating vibrator supporting member disposed inside the head connecting portion of the massage device main body and reciprocated. and a micro-vibration head having a piston head unit including a connecting shaft portion detachably arranged at the connection end portion, wherein the stimulation vibrator and the vibration transmission member are at the abutting end of the connecting shaft portion of the piston head unit. When the piston head unit is moved toward the part, the drive control part of the massage device body is activated, and when the connecting shaft of the piston head unit is reciprocated, the abutting end of the connecting shaft of the piston head unit A micro-vibration is transmitted to the stimulating vibrator through the vibration transmitting member by continuously contacting the proximal end of the vibration transmitting member.

According to the micro-vibration head and the massage device equipped with the micro-vibration head according to the present invention, when the stimulation transducer and the vibration transmission member are moved toward the contact end of the connecting shaft of the piston head unit, When the drive control section of the massage device main body is activated and the connecting shaft of the piston head unit is reciprocated, the contact end of the connecting shaft of the piston head unit is continuous with the base end of the vibration transmitting member. When the affected area is treated with extracorporeal shock waves, the longitudinal wave component of the extracorporeal shock waves is increased and moreover, micro-vibrations are propagated to the stimulating transducer through the vibration transmitting member. , reduce the transverse wave component of the extracorporeal shock wave, which may cause discomfort to the patient, so that vibrations of appropriate frequency can be propagated to the affected area.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an exploded configuration of a first embodiment of a micro-vibration head according to the present invention and an example of a massage device provided with a micro-vibration head; FIG. 2 is a perspective view showing the appearance of a massage device main body in the massage device shown in FIG. 1 together with a massage head; (A) and (B) are respectively an exploded perspective view showing the appearance of the micro-vibration head unit and the component parts constituting the micro-vibration head unit. (A) and (B) are perspective views showing the appearance of a piston head unit and exploded components of the piston head unit, respectively. (A), (B), (C), and (D) are diagrams provided for explaining the operation of the micro-vibration head unit and the piston head unit, respectively. (A) is an echo image showing the affected part of the levator scapula muscle of a patient suffering from stiff shoulders, and (B) is an image of the above-mentioned affected part after treatment using an example of a massage device shown in FIG. Echo image showing the healed affected levator scapula muscle. (A) is a side view showing the appearance of a second embodiment of the micro-vibration head according to the present invention, and (B) is a micro-vibration head unit in the second embodiment of the micro-vibration head shown in (A). 1 is a perspective view showing an exploded configuration of the . (A) is a cross-sectional view along line VIIIA-VIIIA in FIG. 7(A), and (B) is an exploded perspective view showing the configuration of the micro-vibration head unit shown in (A). There is, (C) is an enlarged and exploded perspective view showing the stimulation transducer, the lid, the magnet support member, and the hexagon bolt that constitute a part of the micro-vibration head unit shown in (B). .

FIG. 1 schematically shows the configuration of an example of a massage device equipped with a micro-vibration head according to a first embodiment of the present invention.

The massage device 10 includes a micro-vibration head unit 20, a piston head unit 40 movably arranged in a sleeve 22 of the micro-vibration head unit 20, and the piston head unit 40 and the sleeve 22 of the micro-vibration head unit 20 are connected. and a massage device main body 12.

As shown in FIG. 2, the massage device main body 12 is provided inside the housing of the handle 14, although not shown, for example, a drive motor supported by a motor support and an output shaft of the drive motor. A connected eccentric shaft, a link member connected to the eccentric shaft, a piston rod coupled to one end of the link member and caused to reciprocate, a control board for driving and controlling the drive motor, and a drive motor and the control board The main elements are a secondary battery (lithium ion battery DC 5V) that supplies power to the control board, and an operation unit (not shown) that performs on/off control of the above-mentioned control board. The above-described eccentric shaft, link member, and piston rod have the same configurations as the eccentric connecting shaft, piston, and link, respectively, which constitute the driving portion of a fascia gun, as shown in Patent Document 3, for example. have. The cylindrical connection end portion 18 provided at the tip of the piston rod is, for example, a connection shaft 8S formed at the base end portion of the spherical massage head 8, or instead of the spherical massage head 8, a piston head described later. A connecting shaft portion 44 (see FIG. 4(B)) of the unit 40 can be inserted into the connecting end portion 18 to be detachably connected. The piston rod is, for example, reciprocated with a predetermined stroke, eg, 8 mm±1 mm. The weight of the massage device main body 12 is set to a relatively light weight of, for example, about 680 g in consideration of operability.

A micro-vibration head unit 20, which is an example of a micro-vibration head, is a sleeve connected to the outer peripheral portion of the cylindrical head connection portion 16 of the massage device main body 12, as shown in FIGS. 22, a lid portion 30 which is fixed to the distal end of the sleeve 22 by four screws 36 and has a substantially frusto-conical projection, and a vibration transmitting member for transmitting vibration due to impact from a piston head unit 40, which will be described later. A metal hexagon bolt 24, a magnet support member 28 that supports two magnets 26 that attract the sides of a hexagonal head 24H of the hexagon bolt 24, and a male threaded portion of the shaft of the hexagon bolt 24. A lock nut 32, a metal hexagon cap nut 34 into which the tip of the shaft of the hexagon bolt 24 is screwed, and a piston head unit 40 (Fig. 1, 4 (A) and (B)) as main elements.

By detachably fitting the inner peripheral portion of the base end portion 22E of the resin sleeve 22 to the outer peripheral portion of the cylindrical head connection portion 16 of the massage device body portion 12, the sleeve 22 of the micro-vibration head unit 20 is It is detachably connected to the head connecting portion 16 . A through hole 22a through which the hexagonal bolt 24 and the entire magnet support member 28 pass is formed in the central portion of the end portion of the sleeve 22 . Four female threaded holes 22FS into which four screws 36 are respectively screwed through the respective through holes 30b of the lid portion 30 are formed at equal intervals in the circumferential direction on the end surface of the peripheral edge of the through hole 22a of the sleeve 22. ing.

The projecting portion of the lid portion 30 has an opening portion 30a through which the cylindrical portion 28C of the magnet support member 28 passes. Through-holes 30b through which the four screws 36 pass are formed in the flange portion 30F formed at the bottom portion of the projection of the lid portion 30, corresponding to the four female screw holes 22FS in the sleeve 22. ing. As a result, the four screws 36 are screwed into the four female screw holes 22FS of the sleeve 22 via the through holes 30b of the lid portion 30, so that the flange portion 30F of the lid portion 30 is positioned at the distal end of the sleeve 22. Fixed to the end face.

The threaded shaft portion 24S of the metal hexagon bolt 24 is passed through the hole 28a in the cylindrical portion 28C of the magnet support member 28, two lock nuts 32, and a hexagon cap nut (for example, a screw) as a stimulating oscillator. Nominal diameter M12: Width across flats 19 mm) 34 is screwed and fitted. The two magnets 26 are mounted on the lower end surface of the flange portion 28F of the magnet support member 28 so as to face the mutually facing side surfaces of the head portion 24H of the hexagon bolt 24 so that the head portion 24H of the hexagon bolt 24 is interposed therebetween. are placed. The magnet support member 28 is attracted and held by a magnet (not shown) provided in the lid portion 30 by the magnetic force between the magnet and the two magnets 26 . As a result, when the head 24H of the hexagonal bolt 24 is brought close to between the two magnets 26, the head 24H is attracted by the magnetic force of the two magnets 26 and is attached to the lower end surface of the flange portion 28F of the magnet support member 28. retained.

When the head portion 24H of the hexagon bolt 24 abuts against the lower end surface of the flange portion 28F and is attracted and held by the magnetic force of the two magnets 26, the tip of the cylindrical portion 28C of the magnet support member 28 and the tip of the cylindrical portion 28C A predetermined gap is formed between the lock nut 32 on one side facing the . Such a predetermined gap is, for example, a state in which the head portion 24H of the hexagon bolt 24 contacts the lower end surface of the flange portion 28F and is attracted and held by the magnetic force of the two magnets 26. It is set so that there is a gap of about 4 to 5 mm from the position of the tip of the hexagon cap nut 50 of the piston head unit 40 which is in the initial position closest to the piston head unit 40 . For example, when the hexagon cap nut 34 is brought into contact with the skin of the affected area and further pushed in by about 4 to 5 mm, the tip of the hexagon cap nut 50 of the piston head unit 40 is brought into contact with the head 24H of the hexagon bolt 24. .

On the other hand, when the hexagonal cap nut 34 as the stimulating vibrator of the micro-vibration head unit 20 is not in contact with the affected skin (the hexagonal cap nut 34 is not pushed into the opening 30a of the lid 30 together with the lock nut 32). ), the tip of the hexagon cap nut 50 of the piston head unit 40 does not contact the head 24H of the hexagon bolt 24 even if the piston head unit 40 operates.

On the other hand, the hexagon cap nut 34 of the micro-vibration head unit 20 is brought into contact with the skin of the affected area and pressed against the magnetic attraction force of the magnet 26 toward the base end 22E of the sleeve 22 together with the hexagon bolt 24. (when the lock nut 32 is pushed into the opening 30a of the lid portion 30), the head portion 24H of the hexagon bolt 24 causes one lock nut 32 to contact the tip of the cylindrical portion 28C of the magnet support member 28. It is separated from the lower end surface of the flange portion 28F of the magnet support member 28 by a predetermined distance until it comes into contact with it. As a result, the head 24H of the hexagon bolt 24 comes into contact with the tip of the hexagon cap nut 50 of the piston head unit 40 at the initial position, which will be described later. As a result, when the piston head unit 40 is operated, the vibration caused by the tip of the hexagon cap nut 50 colliding with the head 24H of the hexagon bolt 24 causes the head 24H of the hexagon bolt 24 and the minute vibration head unit. It is propagated to the affected skin through a hexagonal cap nut 34 as a stimulating transducer of 20 .

As shown in FIGS. 4A and 4B, the piston head unit 40 is a resin coupling that is inserted into and detachably fitted into the cylindrical portion of the connecting end portion 18 of the massage device body 12 described above. A shaft portion 44 and a metal hexagonal box nut (for example, nominal diameter M6: width across flats 10 mm) 50 whose one end is screwed into the female threaded hole 44 a of the connecting shaft portion 44 and whose other end is via a washer 48 . and a nitrile rubber O-ring 42 provided at a stepped portion between the cylindrical portion of the connecting shaft portion 44 and the head portion 44H, for example, are connected adjacent to each other with a predetermined interval. Two nitrile rubber O-rings 42 are attached to O-ring grooves 44ga and 44gb formed in the cylindrical portion of the shaft portion 44 .

In such a configuration, when using the massage device 10 to which the micro-vibration head unit 20 and the piston head unit 40 are attached, the patient's affected area is treated with extracorporeal shock waves. , as shown in FIG. 5A, after the tip of the hexagonal cap nut 34 as the stimulating transducer of the micro-vibration head unit 20 is arranged to face the surface of the affected area SK, the hexagonal cap nut 34 is By pressing the tip portion against the surface of the affected area SK by a predetermined amount, the head portion 24H of the hexagon bolt 24 is retracted in the direction indicated by the arrow toward the piston head unit 40, as shown in FIG. 5(B). As a result of being pulled away from the lower end surface of the flange portion 28F of the magnet support member 28 against the magnetic force of the two magnets 26, as shown in FIG. abutted. At this time, while the tip of the hexagon cap nut 34 is in contact with the surface of the affected area SK, the hexagon cap nut 50 of the piston head unit 40, which is activated, moves the head 24H of the hexagon bolt 24 with a predetermined stroke. Due to repeated and continuous collisions with the end face, mainly the longitudinal wave component LW of the shock wave is generated in the affected area SK via the tip of the hexagonal cap nut 34 as the stimulating vibrator of the micro-vibration head unit 20 . This is because when the hexagonal cap nut 50 of the piston head unit 40 collides with the head 24H of the hexagonal bolt 24, a large acceleration is generated at the tip of the hexagonal cap nut 34, so that the affected part SK does not move and the momentary because it is compressed to

Next, as shown in FIG. 5(D), the handle 14 of the massage device main body 12 is operated, and the tip of the hexagonal cap nut 34 moves toward the deep part of the affected area SK in the direction indicated by the arrow by a predetermined amount, and furthermore. When pushed, the transverse wave component TW of the shock wave is generated in the affected area SK through the tip of the hexagonal cap nut 34 of the micro-vibration head unit 20 in a state of being added to the decaying longitudinal wave component LW. This is because after the hexagon cap nut 50 of the piston head unit 40 collides with the head 24H of the hexagon bolt 24, the acceleration of the tip of the hexagon cap nut 34 gradually decreases, so the above-mentioned compressed affected part does not move. because it begins

As a result, the hexagonal cap nut 50 of the piston head unit 40, which is in the actuated state, hits the end face of the head 24H of the hexagonal bolt 24 repeatedly and continuously with a predetermined stroke in a relatively shallow region of the affected area SK. , the longitudinal wave component LW of the shock wave is generated in the affected area SK in the soft tissue around the joint or neck via the tip of the hexagon cap nut 34 as the stimulating transducer of the micro-vibration head unit 20, so that the transverse wave of the shock wave A patient's discomfort caused by the ingredients is avoided.

When the tip of the hexagonal cap nut 34 is separated from the surface of the affected area SK, the magnetic force of the magnet 26 returns the hexagonal cap nut 34 and the head 24H of the hexagon bolt 24 to their initial positions. As a result, even if the piston head unit is operated, the tip of the hexagonal cap nut 50 does not collide with the head 24H of the hexagonal bolt 24.

The echo image obtained by the ultrasonic diagnostic apparatus shown in FIG. 6(A) shows the affected levator scapula muscle of a patient suffering from shoulder stiffness. It is believed that this stiff shoulder is caused by the levator scapula muscle (in the area indicated by the arrow) being pulled toward the ribs located deeper in the shoulder than in its normal position. ing. Therefore, the affected levator scapula muscle of the patient was continuously treated for about 20 seconds by the massage device 10 equipped with the micro-vibration head unit 20 and the piston head unit 40 described above. As a result, as is clear from the echo image obtained by the ultrasonic diagnostic equipment shown in FIG. It has been pulled away from the deep ribs of the shoulder and returned to its original normal position on the shoulder. The inventors of the present application have verified that the patient's stiff shoulders were cured as a result of the longitudinal wave component LW of the shock wave acting effectively on the affected area.

In the above example, the hexagonal bolt 24 as the vibration transmitting member and the hexagonal cap nut 34 as the stimulation transducer are formed separately, but the present invention is not limited to such an example. The hexagon bolt 24, the lock nut 32, and the hexagon cap nut 34 as the stimulating oscillator may be integrally formed.

FIGS. 7A and 7B each show a micro-vibration head unit 60 as a second embodiment of the micro-vibration head. In FIGS. 7A and 7B, the same components as those shown in FIG. 1 are denoted by the same reference numerals, and redundant description thereof will be omitted.

The micro-vibration head unit 60 has a sleeve 62 connected to the outer peripheral portion of the cylindrical head connection portion 16 of the massage device main body 12 of the massage device 10 described above, and four screws BS3 at the end of the sleeve 62. A lid portion 64 which is fixed and has a substantially truncated conical protrusion, and a metallic metal plate serving as a vibration transmitting member for directly transmitting vibration due to impact from a piston head unit, which will be described later, to a tip member 72 serving as a stimulating vibrator. A hexagonal bolt 24, a magnet support member 66B and a support plate 70 for cooperatively supporting a plurality of magnets 68B near the end of the metal connecting shaft portion 80 of the piston head unit, a plurality of magnets 68B and magnets. A magnet 68A that faces the support member 66B and is arranged near the tip member 72, a magnet support member 66A that supports the magnet 68A (see FIG. 8B), and a sleeve 62 as will be described later. and a piston head unit movably arranged in the body.

As shown in FIG. 8A, the inner peripheral portion of the base end portion 62E of the resin sleeve 62 is detachably fitted to the outer peripheral portion of the cylindrical metal head connection portion 16 of the massage device main body 12. As a result, the sleeve 62 of the micro-vibration head unit 60 is detachably connected to the head connecting portion 16 . A plurality of relatively shallow grooves 62eg (see FIG. 7(B)) are formed along the central axis of the sleeve 62 at equal intervals in the circumferential direction on the inner peripheral portion of the base end portion 62E of the sleeve 62. ing. As a result, the frictional force between the inner peripheral portion of the proximal end portion 62E of the sleeve 62 and the outer peripheral portion of the head connecting portion 16 is reduced, and the outer peripheral portion of the head connecting portion 16 is positioned within the inner peripheral portion of the proximal end portion 62E of the sleeve 62. It is easily detachably fitted to the periphery. A through hole 62a is formed in the center of the terminal end of the sleeve 62, through which the hexagonal bolt 24 and the entire magnet support members 66A and 66B pass. A cavity communicating with the through hole 62a of the sleeve 62 is formed inside the sleeve 62, which is formed in a substantially truncated cone shape, at the portion extending from the proximal end 62E of the sleeve 62 to the distal end of the sleeve 62. As shown in FIG.

Four screws BS3 are screwed into four female threaded holes (not shown) of the lid portion 64 on the end surface 62b of the peripheral edge of the through hole 62a of the sleeve 62. The through holes are arranged at equal intervals in the circumferential direction. formed. As a result, the lower end surface of the lid portion 64 is fixed to the end surface 62b of the sleeve 62 by the four screws BS3.

As shown in FIG. 8(A), one end of the lid portion 64 has an opening 64a penetrating along the central axis. A magnet 68A and a magnet support member 66A are fixed to the inner peripheral edge of the opening 64a, and the lower end of the chip member 72 is movably arranged.

As shown in FIGS. 8(B) and 8(C), a metal tip member 72 as a stimulation transducer includes a contact surface portion having a conical surface continuous around a substantially spherical tip portion, and a contact surface portion. A cylindrical portion 72b protruding toward the through hole 66a of the magnet support member 66A is provided at the lower end portion of the contact surface portion. A magnet support member 66A made of a magnetic material for holding two magnets 68A is disposed on the outer peripheral portion of the cylindrical portion 72b of the chip member 72 inserted into the through hole 66a of the magnet support member 66A. The magnet support member 66A is fixed to the inner peripheral edge of the opening 64a of the lid portion 64. As shown in FIG. The male threaded portion 24S of the hexagon bolt 24 is inserted and screwed into the female threaded portion 72FS formed inside the inner peripheral portion of the cylindrical portion 72b of the tip member 72 and the abutted surface portion of the tip member 72 . At that time, the male threaded portion 24S of the hexagon bolt 24 is passed through the through hole 66b of the magnet support member 66B made of a magnetic material for holding the two magnets 68B and the through hole 70a of the support plate 70, and the above-mentioned female thread is inserted. It is screwed into the portion 72FS.

As a result, the cylindrical portion 72b of the tip member 72 is engaged with the peripheral edge portion of the through hole 66b of the magnet support member 66B, and the male screw portion 24S of the hexagon bolt 24 is engaged with the through hole 66b of the magnet support member 66B and the supporting member. The tip member 72 is integrated with the magnet support member 66B and the support plate 70 by being screwed into the female screw portion 72FS through the through hole 70a of the plate 70. As shown in FIG. At that time, the dimension of the gap Da between the lower end surface of the abutted surface portion of the tip member 72 and the upper end surface of the magnet support member 66A is determined by the end surface of the connecting shaft portion 80 of the piston head unit and the head of the hexagon bolt 24, which will be described later. It is set larger than the dimension of the gap Db between it and the portion 24H.

For example, when the abutted surface portion of the tip member 72 is pressed toward the connecting shaft portion 80 of the piston head unit to be described later and is moved by a predetermined value or more, the magnet support member 66B and the support plate 70 are connected to two magnets. When the magnet support member 66B and the support plate 70 are pulled away from the magnet support member 66A against the mutual attraction magnetic force between 68A and the two magnets 68B, the head 24H of the hexagonal bolt 24 is brought into contact with the end face of the connecting shaft portion 80. will be brought into contact with. In this case, when the piston head unit is operated, the vibration caused by the collision of the end surface of the connecting shaft portion 80 with the head portion 24H of the hexagon bolt 24 causes the head portion 24H of the hexagon bolt 24 and the minute vibration head unit 60 to move. is propagated to the affected skin through the tip member 72 as a stimulating transducer. On the other hand, the magnet support member 66B and the support plate 70 are held by the magnet support member 66A due to the magnetic force of mutual attraction between the two magnets 68A and the two magnets 68B. When the gap Db is formed between the end surface of the connecting shaft portion 80 of the piston head unit and the head portion 24H of the hexagon bolt 24, as described above, even if the piston head unit is operated, the end surface of the connecting shaft portion 80 does not collide with the head 24H of the hexagon bolt 24.

As shown in FIG. 8(A), the piston head unit comprises a metallic connecting shaft portion 80 which is inserted into and detachably fitted into the cylindrical portion of the connection end portion 18 of the massage device main body portion 12; Two nitrile rubber O-rings 82 respectively attached to O-ring grooves 80G1 and 80G2 formed in the outer peripheral portion of the cylindrical portion of the connecting shaft portion 44 adjacent to each other at a predetermined interval. It is

As described above, the connecting shaft portion 80 is formed at one end, and the head portion 80H selectively contacts the head portion 24H of the hexagonal bolt 24, and the cylindrical shape of the connection end portion 18 of the massage device main body portion 12. The outer peripheral portion has a flange portion 80F for positioning the relative position of the connecting end portion 18 of the connecting shaft portion 80 with respect to the end portion of the cylindrical portion. The other end of the connecting shaft portion 80 is formed with an opening that communicates with a cavity 80a that extends inwardly along the central axis. A communicating passage (air escape hole) 80b that communicates between the inner peripheral portion of the cylindrical portion of the connecting end portion 18 and the cavity 80a of the connecting shaft portion 80 is located below the flange portion 80F, that is, closer to the other end portion. It is formed so as to be orthogonal to the central axis in the part. O-ring grooves 80G1 and 80G2 are formed at predetermined intervals on the outer peripheral portion of the connecting shaft portion 80 below the communication passage 80b.

In such a configuration, when treating an affected area of a patient with extracorporeal shock waves using the massage device 10 to which the micro-vibration head unit 60 and the piston head unit are attached, first, the piston head unit is activated, and then the micro-vibration is applied. After the tip of the tip member 72 as a stimulating transducer of the vibration head unit 60 is arranged to face the surface of the affected area SK, the tip of the tip member 72 is pressed against the surface of the affected area SK by a predetermined amount, Head 24H of hexagon bolt 24 is retracted toward the piston head unit in the direction indicated by the arrow in FIG. is pulled away from the magnet support member 66A, the head 24H of the hexagon bolt 24 comes into contact with the head 80H of the connecting shaft portion 80 of the piston head unit. At this time, while the tip of the tip member 72 is in contact with the surface of the affected area SK, the head portion 80H of the connecting shaft portion 80 of the piston head unit, which is to be activated, moves the head portion of the hexagon bolt 24 with a predetermined stroke. 24H, the longitudinal wave component LW of the shock wave is generated in the affected area SK via the tip of the tip member 72 as the stimulating vibrator of the micro-vibration head unit 60. FIG. Next, when the handle 14 of the massage device main body 12 is operated and the distal end of the tip member 72 is further pushed toward the deep part of the affected area SK by a predetermined amount, the transverse wave component TW of the shock wave is generated at the tip of the micro-vibration head unit 60. It occurs in the affected area SK via the distal end of the member 72 .

As a result, the head portion 80H of the connecting shaft portion 80 of the actuated piston head unit repeatedly and continuously collides with the end surface of the head portion 24H of the hexagon bolt 24 with a predetermined stroke in a relatively shallow region of the affected area SK. As a result, the longitudinal wave component LW of the shock wave is generated in the affected area SK in the soft tissue around the joint or the neck via the tip of the tip member 72 as the stimulating transducer of the micro-vibration head unit 60. This avoids the patient's discomfort due to the transverse wave component of . When the tip of the tip member 72 is separated from the surface of the affected area SK, the attractive magnetic force between the magnets 68A and 68B causes the tip member 72 and the head 24H of the hexagon bolt 24 to return to their initial positions. As a result, the end surface of the connecting shaft portion 80 does not collide with the head portion 24H of the hexagon bolt 24 even when the piston head unit is operated.

8 massage head 10 massage device 12 massage device main body 16 head connection portion 18 connection end portion 20, 60 fine vibration head unit 22, 62 sleeve 24 hexagon bolt 24H head 26, 68A, 68B magnet 28, 66A, 66B magnet support member 34, 50 Hexagonal cap nut 40 Piston head unit 44, 80 Connecting shaft portion 72 Tip member

Claims (5)

A sleeve detachably connected to a head connecting portion of a massage device main body, a vibration transmitting member and stimulating vibrations arranged movably in a central axis direction of the sleeve on a lid portion fixed to an end portion of the sleeve. a stimulating vibrator supporting member for supporting the stimulating vibrator and the vibration transmitting member so as to be close to or separated from the lid; a piston head unit including a connecting shaft portion detachably arranged at the connecting end portion of the
When the stimulation vibrator and the vibration transmission member are moved toward the abutment end of the connecting shaft of the piston head unit, the drive control section of the massage device main body is activated, and the piston head unit is moved. When the connecting shaft portion of the piston head unit is reciprocated, the abutting end portion of the connecting shaft portion of the piston head unit is continuously abutted against the base end portion of the vibration transmitting member, thereby causing minute vibrations to be transmitted to the vibration transmitting member. A micro-vibration head characterized by propagating to the stimulation transducer via a member. 2. The micro-vibration head according to claim 1, wherein the stimulation transducer support member attracts and holds at least the vibration transmission member so as to be able to approach or separate from the lid portion by magnetic force of a magnet. 2. The micro-vibration head according to claim 1, wherein the abutting ends of the connecting shafts of the stimulating vibrator and the piston head unit are each formed of a metal hexagonal cap nut. 2. The micro-vibration head according to claim 1, wherein the base end of said vibration transmitting member is formed by the head of a hexagonal bolt. a massage device main body having a head connecting portion, a connecting end portion arranged inside the head connecting portion and reciprocatingly moved, and a drive control portion for driving and controlling the connecting end portion;
A sleeve detachably connected to the head connecting portion of the massage device main body, a vibration transmitting member movably disposed in the lid portion fixed to the distal end of the sleeve in the central axis direction of the sleeve, and stimulation. a stimulating vibrator, a stimulating vibrator supporting member for supporting the stimulating vibrator and the vibration transmitting member so as to be close to or separated from the lid, and a stimulating vibrator supporting member disposed inside the head connecting portion of the massage device main body. a micro-vibration head having a piston head unit including a connecting shaft portion detachably arranged at the reciprocating connection end portion;
When the stimulation vibrator and the vibration transmission member are moved toward the abutment end of the connecting shaft of the piston head unit, the drive control section of the massage device main body is activated, and the piston head unit is moved. When the connecting shaft portion of the piston head unit is reciprocated, the abutting end portion of the connecting shaft portion of the piston head unit is continuously abutted against the base end portion of the vibration transmitting member, thereby causing minute vibrations to be transmitted to the vibration transmitting member. A massage device comprising a micro-vibration head characterized in that the vibration is propagated to the stimulation vibrator via a member.

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