JP2024010896A - Micro-vibration head, and massage apparatus with micro-vibration head - Google Patents

Abstract

To provide a massage apparatus equipped with a micro-vibration head which can enhance longitudinal wave components of extracorporeal shock waves, reduce lateral wave components that causes patient discomfort, and cause vibrations of appropriate frequency to be propagated to an affected part.SOLUTION: A massage apparatus 10 comprises: a micro-vibration head unit 20; a piston head unit 40 movably disposed in the micro-vibration head unit 20; and a massage apparatus body part to which the piston head unit 40 and sleeves of the micro-vibration head unit 20 are connected. A hexagonal cap nut of the piston head unit 40 in an operation state repeatedly collides with an end surface of a head of a hexagon bolt 24 of the micro-vibration head unit 20 with a prescribed stroke in the state that an end of a hexagonal cap nut 34 of the micro-vibration head unit 20 contacts a surface of an affected part SK, so that a longitudinal wave component LW of a shock wave occurs to the affected part via the end part of the hexagonal cap nut 34 of the micro-vibration head unit 20.SELECTED DRAWING: Figure 1

Description

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

Muscle disorders in the human body include trigger points in the fascia (for example, as defined in Patent Document 3, a lump-like lump occurs in the muscle membrane, inhibits blood circulation in the muscle, and causes the muscle to contract. For example, as shown in Patent Document 1, an extracorporeal shock wave is applied to trigger points in the fascia in the affected area using a stimulation device equipped with a fluid ejection device. Treatment is suggested. Such a stimulator includes a contact assembly consisting of a plurality of contact members that each inject fluid (gas or liquid) from a fluid ejection device (described later) toward a trigger point in the fascia, a base that supports the contact assembly, and a base that supports the contact assembly. It is composed of: The fluid ejection device connected to the base body of the base supplies medicinal fluid through the transmission channel in the base body to the transmission channel of each contact member and the ejection channel whose opening and closing are controlled. Thereby, after the fluid is pressurized by the injection channels of each contact member, the pressurized fluid stimulates the trigger points in the fascia at the affected area.

Furthermore, for example, as shown in Patent Document 2, a fascia gun has been proposed that massages soft tissue near joints by applying impact (vibration) to the soft tissue of the human body using a spherical massage head instead of using fluid. There is. The massage head of the fascia gun is caused to reciprocate by a predetermined stroke via two output shafts of a drive motor, each connected to an eccentric wheel, a connecting shaft, a link, and a piston.

Special Publication No. 2022-502123 Utility model registration No. 3232352 Special Publication No. 2009-514591

When treating fascia adhesions in affected areas, such as around the neck (cervical vertebrae) and around each joint, due to the fascia cancer shown in Patent Document 2, for example, by applying the above-mentioned extracorporeal shock waves, the massage head The patient may feel uncomfortable because the skin of the affected area in contact 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, when the frequency of the extracorporeal shock wave is further increased, the longitudinal wave component of the extracorporeal shock wave becomes even larger, so it is especially important to place the massage head at an appropriate position on the affected areas, such as around the neck (around the cervical vertebrae) and around each joint. Therefore, it becomes difficult to control accurately, and there is a possibility that the impact noise becomes 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 an extracorporeal shock wave to an affected area. In addition, to provide a micro-vibration head capable of reducing transverse wave components of extracorporeal shock waves that cause patient discomfort and propagating vibrations of an appropriate frequency to the affected area, and a massage device equipped with the micro-vibration head. The purpose is to

In order to achieve the above object, the micro-vibration head according to the present invention includes a sleeve that is detachably connected to the head connection part of the massage device main body, and a lid part fixed to the end part of the sleeve and a center part of the sleeve. A vibration transmission member and a stimulation vibrator arranged to be movable in the axial direction; a stimulation vibrator support member that supports the stimulation vibrator and the vibration transmission 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 removably disposed on a connecting end that is disposed inside the head connecting section of the piston head unit and reciprocated; When the connecting shaft is moved toward the abutting end, the drive control section of the massage device main body is activated, and when the connecting shaft of the piston head unit is reciprocated, the connecting shaft of the piston head unit The contact end of the vibration transmitting member is continuously brought into contact with the base end of the vibration transmitting member, so that micro vibrations are propagated to the stimulation vibrator via the vibration transmitting member.

Further, the stimulation vibrator supporting member may attract and hold at least the vibration transmitting member so as to be able to approach or separate from the lid portion using the magnetic force of a magnet.

The contact ends of the connecting shaft portions of the stimulation vibrator and the piston head unit may each be formed by metal hexagonal cap nuts. The base end portion of the vibration transmission 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 includes a head connection portion, a connection end portion arranged inside the head connection portion and reciprocated, and a drive control portion that drives and controls the connection end portion. A main body part, a sleeve detachably connected to a head connection part of the massage device main body part, and a vibration transmitting member and a stimulation member disposed on a lid part fixed to an end part of the sleeve so as to be movable in the central axis direction of the sleeve. a stimulation vibrator support member that supports the stimulation vibrator and the vibration transmission member so as to be close to or separated from the lid portion; a piston head unit including a connecting shaft removably disposed at a connecting end, and a micro-vibrating head having a micro-vibration head, wherein the stimulation vibrator and the vibration transmission member are connected to the abutting 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 abutting end of the connecting shaft of the piston head unit The stimulation vibrator is characterized in that micro vibrations are propagated to the stimulation vibrator via the vibration transmission member by being continuously brought into contact with the base end of the vibration transmission 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 vibrator and the vibration transmission member are moved toward the contact end of the connecting shaft portion 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 caused to reciprocate, the contact end of the connecting shaft of the piston head unit is connected to the base end of the vibration transmission member. When the external shock wave is applied to the affected area for treatment, the micro-vibration is propagated to the stimulation vibrator via the vibration transmission member. The transverse wave component of the extracorporeal shock wave, which causes patient discomfort, can be reduced, and vibrations of an appropriate frequency can be propagated to the affected area.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing the configuration of a first embodiment of a micro-vibration head according to the present invention and an example of a massage device including the micro-vibration head. FIG. 2 is a perspective view showing the external appearance of a massage device main body in the massage device shown in FIG. 1 together with a massage head. (A) and (B) are perspective views showing the appearance of a micro-vibration head unit and exploded components of the micro-vibration head unit, respectively. (A) and (B) are perspective views showing the external appearance of a piston head unit and exploded components of the piston head unit, respectively. (A), (B), (C), and (D) are diagrams for explaining the operations of the micro-vibration head unit and the piston head unit, respectively. (A) is an echo image showing the levator scapulae muscle in the affected area of a patient suffering from shoulder stiffness, and (B) is an echo image showing the affected area of the patient suffering from stiff shoulders after treatment using an example of the massage device shown in Figure 1. This is an echo image showing the healed affected levator scapulae 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). FIG. (A) is a sectional view taken 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). (C) is an enlarged and exploded perspective view showing a stimulation vibrator, a lid part, a magnet support member, and a hexagonal 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 including a first embodiment of a micro-vibration head according to the present invention.

The massage device 10 includes a micro-vibrating head unit 20, a piston head unit 40 movably disposed within the sleeve 22 of the micro-vibrating head unit 20, and the piston head unit 40 and the sleeve 22 of the micro-vibrating head unit 20 being connected to each other. The massage device main body section 12 is configured to include a massage device main body section 12.

As shown in FIG. 2, the massage device main body 12 has a drive motor supported by a motor support and an output shaft of the drive motor inside the housing of the handle 14, although not shown. A connected eccentric shaft, a link member connected to the eccentric shaft, a piston rod connected to one end of the link member and reciprocated, a control board for driving and controlling the drive motor, and the drive motor and control board. The main elements are a secondary battery (lithium ion battery DC5V) that supplies power to the controller, and an operation section (not shown) that performs on/off control of the control board described above. The above-mentioned eccentric shaft, link member, and piston rod each have the same configuration as the eccentric connecting shaft, piston, and link that constitute the drive section of the fascia gun, for example, as shown in Patent Document 3. have. The cylindrical connection end 18 provided at the tip of the piston rod is, for example, a connecting shaft 8S formed at the base end of the spherical massage head 8, or a piston head described later in place of the spherical massage head 8. A connecting shaft portion 44 (see FIG. 4(B)) of the unit 40 can be inserted inside the connecting end portion 18 and removably connected thereto. The piston rod is, for example, reciprocated with a predetermined stroke, for example, 8 mm±1 mm. The weight of the massage device main body 12 is set to be relatively light, for example, about 680 g, taking operability into consideration.

As shown in FIGS. 3A and 3B, the micro-vibration head unit 20 as an example of a micro-vibration head is a sleeve connected to the outer circumference of the cylindrical head connection portion 16 of the massage device main body 12. 22, a lid portion 30 fixed to the end portion of the sleeve 22 by four screws 36 and having a substantially truncated conical projection, and a lid portion 30 serving as a vibration transmission member for transmitting vibrations due to impact from a piston head unit 40, which will be described later. A metal hexagonal bolt 24, a magnet support member 28 that supports two magnets 26 that attract the sides of the hexagonal head 24H of the hexagonal bolt 24, and a 2 screwed into which the male threaded portion of the shaft of the hexagonal bolt 24 is screwed. A hexagonal cap nut 34 made of metal into which the tip of the shaft of the hexagonal bolt 24 is screwed, and a piston head unit 40 movably disposed within the sleeve 22 (see FIG. 1, (See FIGS. 4(A) and 4(B)) as main elements.

The inner periphery of the base end 22E of the resin sleeve 22 is removably fitted into the outer periphery of the cylindrical head connection part 16 of the massage device main body 12, so that the sleeve 22 of the micro-vibrating head unit 20 can It is detachably connected to the head connecting portion 16 . At the end of the sleeve 22, a through hole 22a through which the hex bolt 24 and the entire magnet support member 28 pass is formed in the center. Four female screw holes 22FS 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, into which four screws 36 are respectively screwed through the through holes 30b of the lid part 30. ing.

The protrusion of the lid portion 30 has an opening 30a through which the cylindrical portion 28C of the magnet support member 28 passes. In the flange portion 30F formed at the bottom of the protrusion of the lid portion 30, through holes 30b, through which the four screws 36 described above pass through, are formed 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 in the sleeve 22 through the respective through holes 30b of the lid part 30, so that the flange part 30F of the lid part 30 is attached to the distal end of the sleeve 22. Fixed to the end face.

The threaded shaft portion 24S of the metal hexagonal bolt 24 passes through the hole 28a in the cylindrical portion 28C of the magnet support member 28, and is connected to two lock nuts 32 and a hexagonal cap nut (for example, a screw cap nut) as a stimulation vibrator. Nominal diameter M12: Width across flats 19 mm) 34 and fit together. The two magnets 26 are attached to the lower end surface of the flange portion 28F of the magnet support member 28, facing the mutually facing side surfaces of the head 24H of the hexagon bolt 24 so that the head 24H of the hexagon bolt 24 is interposed between them. It is located. 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 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 24H of the hexagon bolt 24 comes into contact with 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 and the lock nut 32 facing each other. Such a predetermined gap is, for example, when the head 24H of the hexagonal bolt 24 is in contact with the lower end surface of the flange portion 28F and is attracted and held by the magnetic force of the two magnets 26. On the other hand, a gap is created that is approximately 4 to 5 mm away from the position of the tip of the hexagonal cap nut 50 of the piston head unit 40, which is at the initial position that is closest to the piston head unit. For example, the hexagonal cap nut 34 is brought into contact with the skin of the affected area and pushed further by about 4 to 5 mm, so that the tip of the hexagonal cap nut 50 of the piston head unit 40 is brought into contact with the head 24H of the hexagonal bolt 24. .

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

On the other hand, the hexagonal cap nut 34 of the micro-vibrating head unit 20 is brought into contact with the skin of the affected area, and is pressed together with the hexagonal bolt 24 against the magnetic attraction force of the magnet 26 toward the proximal end 22E of the sleeve 22. (when the lock nut 32 is pushed into the opening 30a of the lid part 30), the head 24H of the hexagonal bolt 24 touches the tip of the cylindrical part 28C of the magnet support member 28 when one of the lock nuts 32 mentioned above comes into contact with the tip of the cylindrical part 28C. The magnet support member 28 is separated and separated from the lower end surface of the flange portion 28F by a predetermined distance until they come into contact with each other. Thereby, the head 24H of the hexagonal bolt 24 comes into contact with the tip of the hexagonal cap nut 50 of the piston head unit 40 in the initial position, which will be described later. As a result, when the piston head unit 40 is operated, vibrations caused by the tip of the hexagonal cap nut 50 colliding with the head 24H of the hexagonal bolt 24 are transmitted to the head 24H of the hexagonal bolt 24 and the slightly vibrating head unit. The stimulation is transmitted to the skin of the affected area via the hexagonal cap nut 34 as a stimulation vibrator.

As shown in FIGS. 4A and 4B, the piston head unit 40 is a resin connection that is inserted into the cylindrical portion of the connection end 18 of the massage device main body 12 and removably fitted together. The shaft portion 44 is screwed into the female threaded hole 44a of the connecting shaft portion 44 at one end, and the other end is inserted through the washer 48 into a metal hexagonal cap nut (for example, the nominal diameter of the screw M6: width across flats 10 mm) 50. A screw shaft portion 46 screwed into the connecting shaft portion 44 and an O-ring 42 made of nitrile rubber provided at a stepped portion between the cylindrical portion of the connecting shaft portion 44 and the head portion 44H, for example, are connected adjacently to each other at a predetermined interval. It is configured to include two O-rings 42 made of nitrile rubber that are attached to O-ring grooves 44ga and 44gb formed in the cylindrical portion of the shaft portion 44.

In such a configuration, when treating an affected area of a patient with extracorporeal shock waves using the massage device 10 to which the above-described micro-vibration head unit 20 and piston head unit 40 are attached, first, the piston head unit 40 is activated and then As shown in FIG. 5(A), after the tip of the hexagonal cap nut 34 as a stimulation vibrator of the micro-vibration head unit 20 is placed so as 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 24H of the hexagonal bolt 24 is retreated toward the piston head unit 40 in the direction indicated by the arrow, 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. 5(C), the hexagonal cap nut 50 of the piston head unit 40 be touched. At that time, with the tip of the hexagonal cap nut 34 in contact with the surface of the affected area SK, the hexagonal cap nut 50 of the piston head unit 40, which is in the activated state, moves the head 24H of the hexagonal bolt 24 with a predetermined stroke. By repeatedly and continuously colliding with the end face, the longitudinal wave component LW of the shock wave is mainly generated in the affected area SK via the tip of the hexagonal cap nut 34 as the stimulation vibrator of the micro-vibration head unit 20. This is because at the moment 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 moment occurs. This is because it is compressed into

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 is moved a predetermined amount toward the deep part of the affected area SK in the direction indicated by the arrow. When pushed in, the transverse wave component TW of the shock wave is generated in the affected area SK via the tip of the hexagonal cap nut 34 of the micro-vibrating head unit 20 in a state where it is added to the decreasing longitudinal wave component LW. This is because after the hexagonal cap nut 50 of the piston head unit 40 collides with the head 24H of the hexagonal bolt 24, the acceleration of the tip of the hexagonal cap nut 34 gradually decreases, so that the compressed affected area is moved. Because it begins.

As a result, the hexagonal cap nut 50 of the activated piston head unit 40 is repeatedly and continuously collided with the end surface of the head 24H of the hexagonal bolt 24 with a predetermined stroke in a relatively shallow area of the affected area SK. , the longitudinal wave component LW of the shock wave is generated at the affected area SK in the soft tissue around the joint or the neck, for example, through the tip of the hexagonal cap nut 34 as the stimulation vibrator of the micro-vibration head unit 20, so that the transverse wave of the shock wave A situation where the patient feels uncomfortable due to the ingredients is avoided.

Then, 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 hexagonal bolt 24 to the initial position. This prevents the tip of the hexagonal cap nut 50 from colliding with the head 24H of the hexagonal bolt 24 even if the piston head unit is operated.

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

In addition, in the above-mentioned example, the hexagonal bolt 24 as a vibration transmission member and the hexagonal cap nut 34 as a stimulation vibrator are formed separately, but the present invention is not limited to this example, and for example, The hexagonal bolt 24, the lock nut 32, and the hexagonal cap nut 34 as a stimulation vibrator 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. Note that in FIGS. 7A and 7B, the same components as those shown in FIG. 1 are denoted by the same reference numerals, and redundant explanation thereof will be omitted.

The micro-vibrating head unit 60 includes a sleeve 62 connected to the outer circumference of the cylindrical head connecting portion 16 of the massage device main body 12 of the massage device 10 described above, and four screws BS3 connected to the end of the sleeve 62. A lid part 64 that is fixed and has a substantially truncated conical protrusion, and a metal lid part 64 that serves as a vibration transmission member that directly transmits vibrations due to impact from a piston head unit, which will be described later, to a tip member 72 that serves as a stimulation vibrator. A magnet support member 66B and a support plate 70 that cooperatively support the hexagonal bolt 24, a plurality of magnets 68B near the end of the metal connecting shaft portion 80 of the piston head unit, and a plurality of magnets 68B and magnets. A magnet 68A that faces the support member 66B and is disposed close to the above-mentioned chip member 72, and a magnet support member 66A that supports the magnet 68A (see FIG. 8(B)) and the inside of the sleeve 62 as described later. The main element is a piston head unit that is movably arranged in the piston head unit.

As shown in FIG. 8(A), the inner periphery of the base end 62E of the resin sleeve 62 is removably fitted into the outer periphery of the cylindrical metal head connection part 16 of the massage device main body 12. As a result, the sleeve 62 of the micro-vibrating head unit 60 is removably 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 along the circumferential direction on the inner circumference of the base end 62E of the sleeve 62. ing. This reduces the frictional force between the inner periphery of the proximal end 62E of the sleeve 62 and the outer periphery of the head connecting portion 16, so that the outer periphery of the head connecting portion 16 It is easily and removably fitted into the peripheral part. At the end of the sleeve 62, a through hole 62a is formed in the center, through which the hex bolt 24 and the entire magnet support members 66A and 66B pass. In a portion extending from the proximal end 62E of the sleeve 62 to the distal end of the sleeve 62, 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 conical shape.

On the end surface 62b of the peripheral edge of the through hole 62a of the sleeve 62, four screws BS3 that are screwed into four female threaded holes (not shown) of the lid part 64 are inserted into the through holes at equal intervals in the circumferential direction. It is formed. Thereby, 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 portion of the lid portion 64 has an opening 64a that passes through the lid portion 64 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 disposed.

As shown in FIGS. 8(B) and 8(C), a metal tip member 72 as a stimulation vibrator has a contact surface portion having a conical surface continuous around a substantially spherical tip portion, and a contact surface portion having a conical surface continuous around a substantially spherical tip portion. A cylindrical portion 72b is provided at the lower end of the contact surface portion and projects toward the through hole 66a of the magnet support member 66A. A magnet support member 66A made of a magnetic material and holding two magnets 68A is disposed on the outer periphery 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. The male threaded portion 24S of the hexagonal 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 hexagonal bolt 24 is inserted into the female thread through the through hole 66b of the magnet support member 66B made of a magnetic material that holds the two magnets 68B, and the through hole 70a of the support plate 70. It is screwed into part 72FS.

As a result, the cylindrical portion 72b of the chip member 72 is engaged with the peripheral edge of the through hole 66b of the magnet support member 66B, and the male threaded portion 24S of the hexagonal bolt 24 is engaged with the through hole 66b of the magnet support member 66B and the support The chip member 72 is integrated with the magnet support member 66B and the support plate 70 by being screwed into the above-mentioned female threaded portion 72FS through the through hole 70a of the plate 70. At that time, the size of the gap Da between the lower end surface of the abutted surface of the tip member 72 and the upper end surface of the magnet support member 66A is the same as the size of the gap Da between the end surface of the connecting shaft section 80 of the piston head unit and the head of the hexagonal bolt 24, which will be described later. The dimension is set to be larger than the dimension of the gap Db between the part 24H and the part 24H.

For example, when the abutted surface of the tip member 72 is pressed toward the connecting shaft portion 80 of the piston head unit, which will be described later, and is moved beyond a predetermined value, the magnet support member 66B and the support plate 70 are connected to the two magnets. When the magnet support member 66B and the support plate 70 are pulled apart from the magnet support member 66A against the mutually attractive magnetic force between the magnets 68A and the two magnets 68B, the head 24H of the hexagonal bolt 24 touches the end surface of the connecting shaft portion 80. It will be brought into contact with the In this case, when the piston head unit is operated, vibrations caused by the end surface of the connecting shaft portion 80 colliding with the head 24H of the hexagonal bolt 24 cause the head 24H of the hexagonal bolt 24 and the slightly vibrating head unit 60 to vibrate. The stimulation is transmitted to the affected skin via the tip member 72 as a stimulation vibrator. 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 mutually attracted magnetic force between the two magnets 68A and the two magnets 68B. When the gap Db is formed between the end face of the connecting shaft part 80 of the piston head unit and the head 24H of the hexagonal bolt 24, as described above, even if the piston head unit is operated, the end face of the connecting shaft part 80 does not collide with the head 24H of the hexagonal bolt 24.

As shown in FIG. 8(A), the piston head unit includes a metal connecting shaft portion 80 that is inserted into the cylindrical portion of the connecting end portion 18 of the massage device main body portion 12 and removably fitted together; Two O-rings 82 made of nitrile rubber are respectively attached to O-ring grooves 80G1 and 80G2 formed on the outer periphery of the cylindrical portion of the connecting shaft portion 44 adjacent to each other at a predetermined interval. has been done.

As described above, the connecting shaft portion 80 is formed at one end and has a head 80H that selectively abuts the head 24H of the hexagonal bolt 24, and a cylindrical portion of the connecting end 18 of the massage device main body 12. The flange portion 80F has a flange portion 80F on the outer periphery that positions the connecting end portion 18 of the connecting shaft portion 80 relative to the end portion of the cylindrical portion by abutting against 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 communication passage (air escape hole) 80b that communicates the inner peripheral part of the cylindrical part of the connecting end part 18 and the cavity 80a of the connecting shaft part 80 is located in a lower part than the flange part 80F, that is, closer to the other end. The part is formed perpendicularly to the central axis. O-ring grooves 80G1 and 80G2 are formed at a predetermined interval on the outer periphery of the connecting shaft portion 80 in a portion further below the communication path 80b.

In such a configuration, when treating an affected area of a patient with extracorporeal shock waves using the massage device 10 equipped with the above-mentioned micro-vibration head unit 60 and piston head unit, first, the piston head unit is activated, and then the micro-vibration head unit 60 and the piston head unit are activated. After the tip of the tip member 72 as a stimulation vibrator of the vibrating head unit 60 is arranged so as 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. The head 24H of the hexagonal bolt 24 is retreated toward the piston head unit in the direction indicated by the arrow in FIG. As a result of being pulled away from the magnet support member 66A, the head 24H of the hexagonal bolt 24 comes into contact with the head 80H of the connecting shaft 80 of the piston head unit. At that time, with the tip of the tip member 72 in contact with the surface of the affected area SK, the head 80H of the connecting shaft 80 of the piston head unit that is in the activated state moves the head of the hex bolt 24 with a predetermined stroke. 24H repeatedly and continuously, a longitudinal wave component LW of the shock wave is generated in the affected area SK via the tip of the tip member 72 as a stimulation vibrator of the micro-vibration head unit 60. Next, when the handle 14 of the massage device main body 12 is operated and the tip of the tip member 72 is further pushed in a predetermined amount toward the deep part of the affected area SK, the transverse wave component TW of the shock wave is transmitted to the tip of the micro-vibrating head unit 60. It occurs at the affected area SK via the distal end of the member 72.

As a result, the head 80H of the connecting shaft 80 of the piston head unit that is in the activated state is repeatedly and continuously collided with the end face of the head 24H of the hexagonal bolt 24 with a predetermined stroke in a relatively shallow area of the affected part SK. As a result, the longitudinal wave component LW of the shock wave is generated at the affected area SK in the soft tissue around the joint or the neck, for example, via the tip of the tip member 72 as the stimulation vibrator of the micro-vibration head unit 60, so that the shock wave is generated. A situation in which the patient feels uncomfortable due to the transverse wave component of the image is avoided. Then, when the tip of the tip member 72 is separated from the surface of the affected area SK, the tip member 72 and the head 24H of the hexagonal bolt 24 are returned to the initial position due to the attraction magnetic force between the magnets 68A and 68B. Thereby, even if the piston head unit is operated, the end surface of the connecting shaft portion 80 will not collide with the head 24H of the hexagonal bolt 24.

8 Massage head 10 Massage device 12 Massage device body 16 Head connection portion 18 Connection end 20, 60 Micro-vibration head unit 22, 62 Sleeve 24 Hex 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 the head connection part of the massage device main body, a vibration transmitting member movably disposed on the lid fixed to the distal end of the sleeve in the direction of the central axis of the sleeve, and a stimulating vibration. a stimulation vibrator support member that supports the stimulation vibrator and the vibration transmission member so as to be close to or separated from the lid portion; a piston head unit including a connecting shaft portion removably disposed on a connecting end portion of the piston head unit;
When the stimulation vibrator and the vibration transmission member are moved toward the contact 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 When the connecting shaft of the piston head unit is reciprocated, the contact end of the connecting shaft of the piston head unit continuously contacts the base end of the vibration transmitting member, so that micro vibrations are transmitted to the vibration transmitting member. A micro-vibration head characterized in that micro-vibration is transmitted to the stimulation vibrator via a member. 2. The micro-vibration head according to claim 1, wherein the stimulation vibrator support member attracts and holds at least the vibration transmission member so as to be able to approach or separate from the lid portion using the magnetic force of a magnet. 2. The micro-vibration head according to claim 1, wherein the contact ends of the stimulation vibrator and the connecting shaft of the piston head unit are each formed by a metal hexagonal cap nut. The micro-vibration head according to claim 1, wherein the base end portion of the vibration transmission member is formed by the head of a hexagonal bolt. a massage device body having a head connection part, a connection end disposed inside the head connection part and reciprocated, and a drive control part driving and controlling the connection end;
a sleeve removably connected to the head connection portion of the massage device main body; a vibration transmission member and a stimulation member disposed on a lid portion fixed to a distal end portion of the sleeve so as to be movable in the central axis direction of the sleeve; a stimulation vibrator supporting member that supports the stimulation vibrator and the vibration transmission member so as to be close to or separated from the lid portion; a piston head unit including a connecting shaft portion removably disposed on the connecting end portion that is reciprocated; and a micro-vibrating head having
When the stimulation vibrator and the vibration transmission member are moved toward the contact 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 When the connecting shaft of the piston head unit is reciprocated, the contact end of the connecting shaft of the piston head unit continuously contacts the base end of the vibration transmitting member, so that micro vibrations are transmitted to the vibration transmitting member. A massage device equipped with a micro-vibration head, characterized in that micro-vibration is transmitted to the stimulation vibrator via a member.