JP2015062563A - Medical aid and medical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical aid and a medical instrument which can reduce the pains felt, for example, at fluid administration or blood sampling by a syringe, and also be handled easily and surely with one hand.SOLUTION: A medical aid 2 comprises: a body part 4 for supporting a syringe 3 and provided with an applying part 42 having a contact face 421 brought into contact with a target site of a living body surface; a vibration mechanism 5 for vibrating the applying part 42; a switch 6 for starting the actuation of the vibration mechanism 5; and a vibration easing mechanism 7 for restraining the vibration of the applying part 42 from being transmitted to the syringe 3. The vibration easing mechanism 7 comprises a magnet unit 7a installed in the body part 4 and a magnet unit 7b installed at the syringe 3.

Description

  The present invention relates to a medical auxiliary tool and a medical tool.

  Conventionally, administration of a drug solution to a human body by a syringe is known as a means of treatment in the medical field. In the administration of the drug solution by this syringe, pain and discomfort are given when the injection needle of the syringe is punctured into the human body, and therefore it is desired in the clinical field to reduce the puncture pain. Particularly in diabetic patients and the like, since fluctuations in blood glucose level are adjusted by self-administration of insulin several times a day, reduction of puncture pain is particularly desirable.

  For such a problem, Patent Document 1 discloses a syringe equipped with an ultrasonic transducer that applies ultrasonic vibration to the needle tip of the injection needle, thereby facilitating the puncture of the injection needle into the human body. Has been. According to the syringe equipped with this ultrasonic transducer, by applying vibration to the needle tip, the injection needle can be smoothly inserted into the human body, thereby reducing puncture pain.

  However, in the syringe equipped with the ultrasonic transducer, since the needle tip vibrates, it is difficult to puncture the blood vessel of the injection needle, and there is a risk of damaging the tissue with the injection needle.

  Moreover, since the puncture pain is reduced by smoothly inserting the injection needle into the human body, the puncture pain cannot be sufficiently reduced.

JP-A-9-239031

  An object of the present invention is to provide a medical auxiliary device and a medical device that can reduce pain when, for example, liquid administration, blood sampling, and the like are performed with a syringe and can be easily and reliably operated with one hand. There is.

Such an object is achieved by the present inventions (1) to (15) below.
(1) A main body portion that includes a contact portion that supports a syringe and has an abutting surface that abuts against a target site on a living body surface;
A vibration mechanism for vibrating the contact portion;
A switch for starting the operation of the vibration mechanism;
A medical auxiliary device comprising: a vibration mitigation mechanism that suppresses transmission of vibration of the abutment portion to the syringe.

(2) The main body has a cylindrical shape,
The said syringe is a medical auxiliary tool as described in said (1) inserted in the said main-body part.

(3) The syringe includes a needle tube having a sharp needle tip at the tip,
The abutting portion has a cylindrical shape, a first position covering at least the needle tip of the needle tube, and a second position where the needle tip is retreated from the first position in the proximal direction. The medical aid according to (2), which is movable between the two.

  (4) The medical auxiliary tool according to (3), further including a biasing member that biases the abutting portion in the distal direction with respect to the syringe.

  (5) The switch does not operate the vibration mechanism when the abutting portion is located at the first position, and when the abutting portion moves to the second position, The medical aid according to (3) or (4), which is configured to start operation.

  (6) The medical assisting device according to (1) or (2), wherein the vibration relaxation mechanism includes an impact absorber that is provided between the main body portion and the syringe and absorbs an impact.

  (7) The vibration mitigation mechanism has a plurality of magnets provided between the main body and the syringe, and the vibration of the contact portion is transmitted to the syringe by the repulsive force of the plurality of magnets. The medical aid according to any one of (1) to (6), which is configured to be suppressed.

  (8) The position restricting mechanism for restricting the position of the syringe with respect to the main body is provided between the abutting portion and the syringe, according to any one of (1) to (7) above. Medical aid.

  (9) The medical assisting device according to any one of (1) to (8), wherein the vibration relaxation mechanism has a function of supporting the syringe.

(10) The main body portion has a grip portion to be gripped by hand when in use,
The said vibration relaxation mechanism is a medical auxiliary tool of any one of said (1)-(9) provided between the said holding part and the said syringe.

(11) The main body has a gripping part that is gripped by hand when in use,
The medical assisting device according to any one of (1) to (5), wherein the vibration relaxation mechanism is configured to prevent the gripping portion from vibrating due to vibration of the contact portion.

  (12) The medical assisting device according to (11), wherein the vibration mitigating mechanism provides the gripping portion with vibration having a phase opposite to that of the gripping portion that is vibrated by vibration of the contact portion.

(13) The main body portion has a grip portion to be gripped by hand when in use,
The medical auxiliary tool according to any one of (1) to (12), further including a vibration transmission suppression mechanism that suppresses vibration of the abutting portion from being transmitted to the hand gripping the grip portion.

  (14) The medical auxiliary tool according to (13), wherein the vibration transmission suppression mechanism includes an impact absorber that is provided on an outer surface of the grip portion and absorbs an impact.

(15) The medical aid according to any one of (1) to (14) above,
A medical device comprising the syringe supported by the main body.

  According to the present invention, by applying vibration stimulation to a target site on the surface of a living body, for example, pain when performing liquid administration, blood sampling, or the like by a syringe, that is, puncture pain of a needle tube attached to a syringe, When using a jet injector as a syringe, pain when injecting a liquid can be reduced.

  In addition, transmission of vibration to the syringe can be suppressed, and the medical auxiliary tool supports the syringe so that the medical auxiliary tool and the syringe are integrated, so that it is easy and reliable with one hand. Can be operated.

1 is a cross-sectional view (including a block diagram) showing a first embodiment of a medical device of the present invention. FIG. 2 is a cross-sectional view (including a block diagram) sequentially illustrating operating states when the medical device illustrated in FIG. 1 is used. FIG. 2 is a cross-sectional view (including a block diagram) sequentially illustrating operating states when the medical device illustrated in FIG. 1 is used. It is sectional drawing (including a block diagram) which shows 2nd Embodiment of the medical device of this invention. It is sectional drawing (a block diagram is included) which shows the modification of 2nd Embodiment of the medical device of this invention. It is sectional drawing (including a block diagram) which shows 3rd Embodiment of the medical device of this invention. It is sectional drawing (a block diagram is included) which shows 4th Embodiment of the medical device of this invention. It is sectional drawing (including a block diagram) which shows 5th Embodiment of the medical device of this invention. It is sectional drawing (including a block diagram) which shows 6th Embodiment of the medical device of this invention. It is sectional drawing (including a block diagram) which shows 7th Embodiment of the medical device of this invention. It is a perspective view which shows 8th Embodiment of the medical device of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a medical auxiliary tool and a medical tool according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

<First Embodiment>
FIG. 1 is a cross-sectional view (including a block diagram) showing a first embodiment of the medical device of the present invention. 2 and 3 are cross-sectional views (including a block diagram) that sequentially show the operating states when the medical device shown in FIG. 1 is used.

  In the following, for convenience of explanation, the vertical direction in FIGS. 1 to 3 is referred to as “axial direction”, the upper side is referred to as “base end” or “rear end”, and the lower side is referred to as “tip” (FIGS. 4 to FIG. The same applies to 11).

  A medical device 1 shown in FIG. 1 is a device used when a liquid is administered (injected) into a living body. The liquid is appropriately selected according to the purpose of use, and is not particularly limited. For example, anti-diabetes, hematopoietic agent, vaccine, hormone preparation, anti-rheumatic agent, anti-cancer agent, anesthetic agent, anticoagulant agent And the like, which are mainly injected subcutaneously.

  As shown in FIG. 1, the medical device 1 includes a syringe 3 and a medical auxiliary device 2 that supports the syringe 3. In addition, the syringe 3 may be detachably attached to the medical auxiliary tool 2, or the syringe 3 may be fixedly installed. The syringe 3 may be a prefilled syringe prefilled with a liquid, or may not be initially filled with a liquid.

First, the syringe 3 will be described.
As shown in FIG. 1, the syringe 3 is installed in an outer cylinder (cylinder) 31 that can be filled with a liquid, and can be slid along the axial direction (longitudinal direction) of the outer cylinder 31. A gasket 32, a pusher 33 for moving (pressing) the gasket 32 along the axial direction of the outer cylinder 31, and a needle tube 34 are provided. The gasket 32 is connected to the tip of the pusher 33.

  The outer cylinder 31 is formed of a bottomed cylindrical member, and a needle tube 34 is attached to the bottom portion on the distal end side. The needle tube 34 has a sharp needle tip at the tip thereof, and the lumen of the needle tube 34 and the lumen of the outer cylinder 31 communicate with each other. Note that the needle tube 34 may be detachably attached to the outer cylinder 31, and the needle tube 34 may be fixedly installed.

  An annular flange 311 is formed on the outer periphery of the base end of the outer cylinder 31. Further, a scale (not shown) indicating the amount of liquid is attached to the outer peripheral surface of the outer cylinder 31.

  The constituent material of the outer cylinder 31 is not particularly limited. For example, polyvinyl chloride, polyethylene, polypropylene, cyclic polyolefin, polystyrene, poly- (4-methylpentene-1), polycarbonate, acrylic resin, acrylonitrile-butadiene- Styrene copolymer, polyester such as polyethylene terephthalate, polyethylene naphthalate, butadiene-styrene copolymer, various resins such as polyamide (for example, nylon 6, nylon 6,6, nylon 6,10, nylon 12), glass, etc. Among them, resins such as polypropylene, cyclic polyolefin, and polyester are preferable because they are easily molded and have low water vapor permeability. In addition, it is preferable that the outer cylinder 31 has light transmittance (substantially transparent or translucent) in order to ensure internal visibility.

  In the outer cylinder 31, a gasket 32 made of an elastic material is accommodated so as to be slidable along the axial direction of the outer cylinder 31. A plurality (two in the present embodiment) of ring-shaped protrusions 321 and 322 are formed on the outer periphery of the gasket 32 over the entire periphery, and these protrusions 321 and 322 are the inner peripheral surface of the outer cylinder 31. By sliding while being in close contact with each other, liquid tightness can be more reliably maintained and slidability can be improved.

  The elastic material constituting the gasket 32 is not particularly limited. For example, various rubber materials such as natural rubber, butyl rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, silicone rubber, polyurethane, polyester, polyamide Examples thereof include various thermoplastic elastomers such as olefins, olefins, and styrenes, or elastic materials such as a mixture thereof.

  The pusher 33 is a member that performs a pressing operation for discharging the liquid in the outer cylinder 31 from the needle tube 34 by pressing and moving the gasket 32 toward the distal direction. The pusher 33 has a rod-like main body portion 331, and a disc-shaped flange 332 is formed at the base end of the main body portion 331.

  A connecting portion (not shown) corresponding to the shape of a recess (not shown) formed in the gasket 32 is formed at the distal end of the main body portion 331, and this connecting portion is inserted into the recess of the gasket 32. As a result, the pusher 33 and the gasket 32 are connected. The method for fixing the gasket 32 to the main body 331 is not limited to this. For example, a male screw is formed on the main body 331 and a female screw is formed on the gasket 32 to be engaged with the male screw. And a method of screwing them together, a method of fixing by adhesion, fusion, etc., a method of integral molding, and the like. In the present embodiment, the pusher 33 is connected to the proximal end side of the gasket 32, but may not be connected.

  Moreover, as a constituent material of the pusher 33, the thing similar to what was illustrated as a constituent material of the outer cylinder 31 mentioned above can be used.

  In this syringe 3, a predetermined liquid is filled in a space (liquid storage space) surrounded by the outer cylinder 31 and the gasket 32.

Next, the medical aid 2 will be described.
As shown in FIG. 1, the medical auxiliary tool 2 includes a main body 4 that supports the syringe 3, a vibration mechanism 5, a switch 6 that starts the operation of the vibration mechanism 5, a vibration relaxation mechanism 7, and a vibration mechanism 5. And a coil spring 9.

  The main body 4 has a cylindrical shape. The main body 4 includes a grip 41 that is gripped by hand during use, and a contact 42 having a contact surface 421 that contacts a target portion of the biological surface 100 at the tip (see FIGS. 2 and 3). ). The syringe 3 is inserted into the main body 4 and supported by the main body 4. The syringe 3 may be detachably attached to the medical aid 2 or may be supported so as not to be removed.

  The grip portion 41 has a cylindrical shape and is disposed concentrically with the syringe 3 on the outer peripheral side of the syringe 3. The medical device 1 may be used for self-injection, and the outer peripheral surface of the grasping portion 41 is preferably formed with a groove that fits four fingers so as to easily fit the palm (see FIG. Not shown). Needless to say, the medical device 1 may be used by medical personnel such as doctors.

  The constituent material of the grip part 41 and the abutting part 42 is not particularly limited, and for example, a hard material such as resin, ceramic, metal, wood, and glass, or a soft material such as epoxy resin, sponge, and silicone can be used. .

  In addition, in order to ensure the visibility of the inside of the holding part 41, it is preferable that it has light transmittance (substantially transparent or translucent).

  The abutting portion 42 has a cylindrical shape and is disposed concentrically with the syringe 3 on the outer peripheral side of the syringe 3. The abutting portion 42 is disposed concentrically with the gripping portion 41 on the distal end side of the gripping portion 41 and on the inner peripheral side of the gripping portion 41, and is installed so as to be movable in the axial direction with respect to the gripping portion 41. Has been. In this case, the abutting portion 42 is retracted from the first position (see FIGS. 1 and 2) covering at least the needle tip of the needle tube 34 of the syringe 3 in the proximal direction, and the needle of the needle tube 34 It can move between a second position where the tip is exposed (see FIG. 3).

  As described above, the abutting portion 42 has a function of a cover member for the needle tube 34, and when the abutting portion 42 is located at the first position, the contact surface 421 of the abutting portion 42 is the needle tip of the needle tube 34. The needle tip of the needle tube 34 is covered by the abutment portion 42 that protrudes further toward the distal end side. Thereby, it is possible to prevent the user from erroneously piercing with the needle tip of the needle tube 34 before puncturing or damaging the needle tip.

  The constituent material of the abutting portion 42 is not particularly limited, and examples thereof include hard materials such as resin, ceramic, metal, wood, and glass.

  In addition, when it is not desired to visually recognize that the needle tube 34 punctures a living body during self-injection, the abutting portion 42 is preferably opaque. In addition, when a medical worker wants to confirm the puncture site of the needle tip of the needle tube 34, the abutting portion 42 has a light transmission property (substantially transparent or translucent to ensure the internal visibility). Preferably).

  The coil spring 9 is a biasing member that biases the abutting portion 42 toward the grip portion 41 and the syringe 3 in the distal direction. The coil spring 9 is installed on the grip 41 of the main body 4 in a slightly contracted state from a natural state where no external force is applied. Thereby, in the initial state of the medical device 1, the contact part 42 is hold | maintained in a 1st position.

  The vibration mechanism 5 is a mechanism that vibrates the abutting portion 42. This vibration mechanism 5 is installed in the contact part 42 or its vicinity.

  The vibration mechanism 5 is not particularly limited as long as it can vibrate the abutting portion 42, and examples thereof include a vibration motor such as a portable vibration motor, a piezoelectric element (ultrasonic generator), and the like. Further, a spring or the like provided with an eccentric weight may be used as the vibration mechanism 5, and in this case, the power supply 8 is unnecessary.

  The dimensions of the vibration mechanism 5 are not particularly limited and are appropriately set according to various conditions such as the dimensions of the abutting portion 42. When a vibration motor is used as the vibration mechanism 5, the diameter of the vibration motor is 1 to It is preferably about 10 mm, more preferably about 2 to 5 mm. The total length of the vibration motor is preferably about 5 to 500 mm, and more preferably about 10 to 30 mm.

  Moreover, the vibration motor has an eccentric weight such as a semicircular shape at the tip of the rotating shaft. When the weight rotates, an eccentric load is applied, and the weight vibrates, that is, vibration is generated. The amount of vibration is set by the number of rotations, the weight of the weight, and the like.

  The number of rotations of the vibration motor is not particularly limited and is appropriately set according to various conditions, but is preferably about 10 to 50000 rpm, and the weight of the weight is not particularly limited, and is appropriately determined according to various conditions. Although set, it is preferably about 0.01 to 10 g. The resonance frequency in the case of the rotation speed and the weight is preferably about 0.1 to 5000 Hz, and more preferably about 1 to 1000 Hz.

  The types of vibration motors include, for example, a linear type, a coin type, a cylinder type, and the like, which are appropriately selected. In the linear type, vibration in one axial direction is obtained, and in other cases, vibration in two axial directions is obtained.

  Further, when a piezoelectric element is used as the vibration mechanism 5, the same frequency as that of the vibration motor is set.

  In addition, in a mainspring provided with an eccentric weight, an eccentric weight, such as a semicircular shape, is provided at the tip of the rotating shaft that is rotated by the operation of the mainspring. Vibrate, that is, vibration occurs.

  The vibration amount of the weight depends on the number of rotations of the mainspring, the plate thickness, the plate width, the plate length, and the weight of the weight, and is appropriately set as described above. Moreover, the operating time of the weight depends on the number of rotations of the mainspring, and the operating time of the weight is preferably 5 to 120 seconds.

  When the living body is punctured by the needle tube 34 by vibrating stimulation (vibration) in the vicinity of the target site, that is, the puncture site by the needle tube 34 by the vibration of the abutting portion 42 that is vibrated by the operation of the vibration mechanism 5. Pain (puncture pain) is suppressed. This theory stimulates thick nerve fibers that convey low threshold sensations such as touch, pressure, vibration, etc., thereby activating spinal dorsal keratoid neurons, closing pain signal pathway gates and suppressing pain This is based on the gate control theory. In addition, pain suppression includes not only reducing pain but also eliminating pain.

  The power source 8 is means for supplying power to the vibration mechanism 5 and is installed in the grip portion 41. As the power supply 8, it can be comprised with a battery, a power converter circuit, etc., for example. The vibration mechanism 5 is operated by the electric power supplied from the power supply 8 to vibrate the contact portion 42.

The switch 6 is a mechanism that starts and stops the operation of the vibration mechanism 5.
The switch 6 does not operate the vibration mechanism 5 when the abutting portion 42 is located at the first position, and starts the operation of the vibration mechanism 5 when the abutting portion 42 moves to the second position. It is configured as follows. In the present embodiment, the vibration mechanism 5 is actuated while the abutting portion 42 is moving from the first position to the second position, that is, immediately before the needle tip of the needle tube 34 protrudes from the contact surface 421 of the abutting portion 42. To start.

  Specifically, the switch 6 has a slider 61 fixed to the base end portion of the abutting portion 42, terminals 62 and 63 installed on the slider 61, and terminals 64 and 65 installed on the grip portion 41. doing. The terminals 62 and 63 are each electrically connected to the vibration mechanism 5, and the terminals 64 and 65 are respectively electrically connected to the power supply 8.

  A groove 411 extending in the axial direction is formed on the inner peripheral surface of the grip portion 41, and the slider 61 is inserted into the groove 411 and along the groove 411 along the groove 411 in the axial direction. Moving. The coil spring 9 is inserted into the groove 411, and the distal end portion of the coil spring 9 is fixed or abutted on the slider 61, and the base end portion is fixed or abutted on the grip portion 41. Note that the position of the coil spring 9 is not limited as long as the abutting portion 42 can move between the first position and the second position. For example, the coil spring 9 may be installed between the abutting portion 42 and the vibration relaxation mechanism 7.

  In the initial state, the abutting portion 42 is located at the first position (see FIGS. 1 and 2), the terminal 62 and the terminal 64 are connected, and the terminal 63 and the terminal 65 are not connected. That is, the switch 6 is off. In this state, power is not supplied from the power supply 8 to the vibration mechanism 5, and the vibration mechanism 5 is stopped.

  As shown in FIG. 3, by pressing the medical device 1 against the living body surface 100, the grip portion 41 moves in the proximal direction against the urging force of the coil spring 9, and at this time, first, the terminals 62 and 64 Is maintained, and the terminal 63 and the terminal 65 are connected. That is, the switch 6 is turned on. In this state, power is supplied from the power source 8 to the vibration mechanism 5 and the vibration mechanism 5 is activated. When the abutting portion 42 is further pressed after the vibration mechanism 5 is actuated, the needle tip of the needle tube 34 protrudes from the contact surface 421 of the abutting portion 42, and the needle tube 34 is punctured into the living body.

  The vibration relaxation mechanism 7 is a mechanism that suppresses transmission of vibration of the abutting portion 42 to the syringe 3, and is provided between the grip portion 41 of the main body portion 4 and the syringe 3. The vibration relaxation mechanism 7 has a function of supporting the syringe 3 and regulating the position of the syringe 3 with respect to the main body 4. The suppression of the vibration transmission includes not only reducing the vibration of the syringe 3 but also eliminating the vibration of the syringe 3.

  The dimension of the vibration relaxation mechanism 7 is not particularly limited, and is appropriately set according to various conditions such as the dimension of the gripping portion 41.

  The vibration relaxation mechanism 7 has a magnet unit 7 a installed in the main body 4 and a magnet unit 7 b installed in the syringe 3.

  The magnet unit 7 a includes a pair of permanent magnets 71 and 72 and a permanent magnet 73 and a support member 70 a that supports them, and the support member 70 a is formed on the inner peripheral surface of the grip portion 41 of the main body portion 4. It is fixed. This fixing method is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method of fixing with a frictional force.

  The shape of the support member 70a is not particularly limited. In the present embodiment, the support member 70a has a hollow ring shape, and a magnet unit 7b described later is disposed in the hollow portion of the support member 70a. The syringe 3 passes through the magnet units 7a and 7b, and the magnet unit 7a is not in contact with the syringe 3. Moreover, the shape of each of the permanent magnets 71 to 73 is not particularly limited, but in the present embodiment, it has an annular shape.

  The permanent magnet 71 is installed concentrically with the syringe 3 at the proximal end portion of the support member 70a, and the permanent magnet 72 is installed concentrically with the syringe 3 at the distal end portion of the support member 70a. . Further, the permanent magnet 71 and the permanent magnet 72 are disposed so as to face each other in the axial direction of the syringe 3 (vertical direction in FIG. 1). Further, the permanent magnet 73 is disposed concentrically with the syringe 3 and is disposed on the outer peripheral side of the permanent magnets 71 and 72.

  Further, the permanent magnets 71 and 72 are magnetized so that both end surfaces in the axial direction of the syringe 3 are magnetic poles, and the opposing surfaces of the permanent magnets 71 and 72 are different polarities. The permanent magnet 73 is magnetized so that both end surfaces in the radial direction, that is, the outer peripheral surface and the inner peripheral surface become magnetic poles.

  The magnet unit 7 b includes a permanent magnet 74 and a permanent magnet 75 and a support member 70 b that supports them. The support member 70 b is fixed to the outer peripheral surface of the proximal end portion of the outer cylinder 31 of the syringe 3. Has been. This fixing method is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method of fixing with a frictional force.

  The shape of the support member 70b is not particularly limited, but has an annular shape in the present embodiment. Further, the shapes of the permanent magnets 74 and 75 are not particularly limited, respectively, but in the present embodiment, they form an annular shape.

  The permanent magnet 74 is disposed concentrically with the syringe 3 and is disposed so as to face the permanent magnets 71 and 72 in the axial direction of the syringe 3.

  The permanent magnet 75 is disposed concentrically with the syringe 3, and is disposed on the outer peripheral side of the permanent magnet 74 and on the inner peripheral side of the permanent magnet 73. Further, the permanent magnet 75 is disposed so as to face the permanent magnet 73 in the radial direction of the syringe 3.

  Further, in the permanent magnet 74, both end surfaces in the axial direction of the syringe 3 are magnetic poles, the surfaces of the permanent magnets 74 and 71 facing each other are the same, and the surfaces of the permanent magnets 74 and 72 facing each other are the same. Magnetized to be poles.

  The permanent magnet 75 is magnetized so that both end surfaces in the radial direction, that is, the outer peripheral surface and the inner peripheral surface are magnetic poles, and the opposing surfaces of the permanent magnets 75 and 73 are the same pole. .

  As specific examples of the polarities of the magnetic poles of the permanent magnets 71 to 75, the permanent magnet 71, 72, 74 has a “N pole” surface on the tip side of the permanent magnet 71, and a base end side of the permanent magnet 72. The surface of the permanent magnet 74 is “N pole”, the surface of the permanent magnet 74 is “S pole”, and the surface of the tip side is “S pole”. The base end surface of the permanent magnet 72 is “N pole”, the base end surface of the permanent magnet 74 is “S pole”, and the tip end surface is “N pole”. As for the permanent magnets 73 and 75, the inner peripheral side of the permanent magnet 73 is the case where the inner peripheral surface of the permanent magnet 73 is “N pole” and the outer peripheral surface of the permanent magnet 75 is “N pole”. And the surface on the outer peripheral side of the permanent magnet 75 is “S pole”.

The permanent magnets 71 to 75 are not particularly limited, and examples thereof include alnico magnets, ferrite magnets, neodymium magnets, samarium cobalt magnets, KS steel, and MK steel. The maximum energy products (BH) max of the permanent magnets 71 to 75 are each preferably as large as possible, and are preferably set within a range of about 1 to 500 kJm ³ , for example.

  In the vibration relaxation mechanism 7, the permanent magnet 74 receives a repulsive force (repulsive force) from the permanent magnets 71 and 72, and the permanent magnet 75 receives a repulsive force from the permanent magnet 73. Thereby, the magnet unit 7b is supported by the magnet unit 7a in a non-contact manner with the magnet unit 7a, and its axial and radial positions are restricted.

  In this manner, the syringe 3 is supported at the base end portion thereof by the grip portion 41 of the main body portion 4 via the vibration relaxation mechanism 7, and thereby the position of the syringe 3 with respect to the main body portion 4, that is, the grip portion 41. The position of the syringe 3 with respect to the axial direction and the radial direction is regulated.

  In addition, the repulsive force of the permanent magnets 71 to 75 suppresses the vibration of the contact portion 42 from being transmitted to the syringe 3.

  Next, a method of using the medical device 1 and an operating state at the time of use will be described with reference to FIGS.

  As shown in FIG. 1, in the initial state, the abutting portion 42 is located at the first position (see FIGS. 1 and 2), the terminal 62 and the terminal 64 are connected, and the terminal 63 and the terminal 65 are connected. Not done. That is, the switch 6 is off. In this state, power is not supplied from the power supply 8 to the vibration mechanism 5, and the vibration mechanism 5 is stopped. Further, the abutting surface 421 of the abutting portion 42 protrudes toward the tip side from the needle tip of the needle tube 34, and the needle tip of the needle tube 34 is covered by the abutting portion 42.

  When administering the liquid, as shown in FIG. 2, the grasping portion 41 of the medical device 1 filled with the liquid in the outer cylinder 31 of the syringe 3 is grasped by hand, and the contact surface 421 of the abutting portion 42 is placed on the living body. Abut against the surface 100.

  Then, as shown in FIG. 3, the medical device 1 is pressed against the living body surface 100. As a result, the grip portion 41 moves in the proximal direction against the urging force of the coil spring 9. At this time, first, the state where the terminal 62 and the terminal 64 are connected is maintained, and the terminal 63 and the terminal 65 are connected. That is, the switch 6 is turned on. In this state, power is supplied from the power source 8 to the vibration mechanism 5 and the vibration mechanism 5 is activated. Thereby, a vibration stimulus is given in the vicinity of the puncture site by the needle tube 34. When the abutting portion 42 is further pressed after the vibration mechanism 5 is activated, the needle tube 34 needle tip protrudes from the contact surface 421, and the needle tube 34 is punctured into the living body. Pain puncturing a living body with the needle tube 34 is suppressed by the vibration stimulation.

  Further, the vibration mitigating mechanism 7 suppresses the vibration of the abutting portion 42 from being transmitted to the syringe 3.

  When the biasing force of the coil spring 9 is relatively large, the contact surface 421 of the abutting portion 42 is strongly pressed against the living body surface 100, and the pain of puncturing the living body with the needle tube 34 is also caused by the pressure, that is, pressure stimulation. It is suppressed.

Next, the pusher 33 of the syringe 3 is pressed to administer the liquid.
Then, after the administration of the liquid is completed, the medical device 1 is moved in the proximal direction, and the needle tube 34 is removed from the living body. Thereby, the gripping portion 41 is moved in the distal direction by the urging force of the coil spring 9. At this time, first, the needle tube 34 is removed from the living body, and the needle tip of the needle tube 34 is covered by the abutting portion 42. Thereafter, the terminal 63 and the terminal 65 are disconnected. That is, the switch 6 is turned off. In this state, power is not supplied from the power supply 8 to the vibration mechanism 5 and the vibration mechanism 5 stops. In this way, vibration stimulation is applied to the vicinity of the puncture site by the needle tube 34 from just before the needle tube 34 is punctured into the living body to immediately after it is removed from the living body.

  As described above, according to the medical device 1, it is possible to reduce the puncture pain of the needle tube 34 when the liquid is administered by the syringe 3 by applying a vibration stimulus to the target site on the surface of the living body.

  Moreover, it can suppress that a vibration is transmitted to the syringe 3, and the medical auxiliary tool 2 supports the syringe 3, and these are integrated so that the medical tool 1 can be easily and reliably operated with one hand. can do. In particular, since it is possible to suppress vibrations from being transmitted to the syringe 3, the needle tube 34 can be easily and reliably inserted into the target location.

The shape of the support member 70a of the magnet unit 7a and the support member 70b of the magnet unit 7b is changed, a pair of permanent magnets 71 and 72 are installed on the support member 70b, and a permanent magnet 74 is installed on the support member 70a. Also good.
Further, the vibration relaxation mechanism 7 may be provided between the abutting portion 42 and the syringe 3.

Second Embodiment
FIG. 4 is a cross-sectional view (including a block diagram) showing a second embodiment of the medical device of the present invention.

  Hereinafter, the second embodiment will be described with a focus on the differences from the first embodiment described above, and the description of the same matters will be omitted.

  As shown in FIG. 4, in the medical device 1 of the second embodiment, the vibration relaxation mechanism 7 has an impact absorber 11 that absorbs an impact. The shock absorber 11 has a cylindrical shape and is provided between the main body 4 and the syringe 3. In this case, the inner peripheral surface of the shock absorber 11 is fixed or brought into contact with the outer peripheral surface of the proximal end portion of the outer cylinder 31 of the syringe 3, and the outer peripheral surface of the shock absorber 11 is the inner part of the grip portion 41 of the main body 4. It is fixed to the peripheral surface. This fixing method is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method of fixing with a frictional force.

  The dimensions of the shock absorber 11 are not particularly limited and are appropriately set according to various conditions such as the dimensions of the gripping portion 41. The diameter of the shock absorber 11 is preferably about 5 to 50 mm, The height is preferably about 5 to 150 mm. Moreover, it is preferable that the thickness of the shock absorber 11, that is, the distance between the outer peripheral surface of the outer cylinder 31 of the syringe 3 and the inner peripheral surface of the grip portion 41 is about 0.1 to 22 mm.

  The shock absorber 11 is not particularly limited as long as it can absorb the impact applied from the main body 4, that is, vibrations. For example, a structure formed of a shock absorber, such as an elastic body, or flexible And a shock absorbing bag composed of a bag having a bag and a filler filled in the bag.

  Examples of the elastic body include various elastomers (rubbers) such as anti-vibration rubber, various springs, and the like. The anti-vibration rubber preferably has a Shore A hardness of about 15 to 95. Moreover, higher vibration proofing can be exhibited by subjecting the surface to surface treatment such as unevenness. In addition, the structural example in case the elastic body which comprises the shock absorber 11 is a spring is demonstrated in 3rd Embodiment mentioned later.

  The impact absorbing material is not particularly limited as long as it can absorb the impact applied from the main body 4, that is, vibration, and examples thereof include silicone, urethane, acrylic, etc., and a combination of these two or more types. It may be used. Moreover, a sponge-like foam may be sufficient. The elongation is preferably about 50 to 1000%, and the rebound resilience is preferably 1% or less.

  Further, the material constituting the flexible bag of the shock absorbing bag is not particularly limited. For example, vinyl chloride, polyurethane, polyurethane elastomer, styrene-ethylene-butylene-styrene copolymer (SEBS), styrene-ethylene. -Propylene-styrene copolymer (SEPS), ethylene vinyl acetate copolymer (EVA), polyamide resins and polyamide elastomers such as nylon, polyester resins such as polyethylene terephthalate (PET) and polyester elastomers, olefin resins such as polyethylene, Examples include elastomers (rubbers) such as natural rubber, silicone elastomer, fluororubber, and fluororesin. Further, the shape of the bag is not particularly limited, and for example, it may have a plurality of partition walls like a bubble cushioning material.

  In addition, the filling material to be filled in the bag is not particularly limited as long as it can absorb the impact applied from the main body 4, that is, vibrations. For example, in addition to the shock absorbing material, a gas such as air, Examples thereof include fluids such as liquids such as water, granular materials composed of sand, silicone, elastomer (rubber), springs, and the like.

Moreover, the vibration relaxation mechanism 7 may be provided between the contact part 42 and the holding part 41 as shown in FIG. In this case, the vibration relaxation mechanism 7 is configured by an elastic body, a shock absorbing material, and the like, and the gripping portion 41 has a support portion 417 that supports the syringe 3 on the inner peripheral side thereof.
According to the medical device 1, the same effect as that of the first embodiment described above can be obtained.

<Third Embodiment>
FIG. 6 is a cross-sectional view (including a block diagram) showing a third embodiment of the medical device of the present invention.

  Hereinafter, the third embodiment will be described with a focus on differences from the first embodiment described above, and descriptions of the same matters will be omitted.

  As shown in FIG. 6, in the medical device 1 of the third embodiment, the vibration relaxation mechanism 7 has a mesh spring (spring) 12 as an impact absorber that absorbs an impact.

  The mesh spring 12 is formed, for example, after a wire material is knitted (knitted into a mesh shape). The overall shape of the mesh spring 12 is cylindrical, and the mesh spring 12 is provided between the main body 4 and the syringe 3. In this case, the inner peripheral surface of the mesh spring 12 is fixed or brought into contact with the outer peripheral surface of the proximal end portion of the outer cylinder 31 of the syringe 3, and the outer peripheral surface is fixed to the inner peripheral surface of the grip portion 41 of the main body portion 4. Yes. This fixing method is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method of fixing with a frictional force.

  The amount of deflection of the mesh spring 12 (how much it shrinks from the total length) is preferably set in the range of 10 to 90%, the total length of the mesh spring 12, the mesh thickness, the constituent material of the wire constituting the mesh spring 12, It is appropriately set according to various conditions such as the diameter of the wire.

  Moreover, the dimension of the mesh spring 12 is not particularly limited, and is appropriately set according to various conditions such as the dimensions of the syringe 3 and the main body 4. The diameter of the mesh spring 12 is about 5 to 50 mm. Preferably, the height is preferably about 5 to 150 mm, the mesh thickness is preferably about 0.1 to 22 mm, and the diameter of the wire constituting the mesh spring 12 is 0.1 to It is preferably about 1 mm.

  The constituent material of the mesh spring 12 is not particularly limited, and examples thereof include steel, Si—Mn steel, Mn—Cr steel, Mn—Cr—V steel, Mn—CR—B steel, Si—Mn—Cr steel, Mn—Cr—Co steel, Cr—Ni steel, Cr—Ni—Cu steel, Cr—Ni—Al steel, C—Cr steel, carbon steel, beryllium steel, brass, phosphor bronze, nickel silver, Cu -Ni steel, Cu-Ni-Zn steel, Cu-Sn steel, Cu-Zn-Al steel, Cu-Ni-Sn steel, Cu-Be steel, Cu-Be-Co steel, Ni-Co steel, Ni alloy, Stainless steel, Ti alloy, Ti-Pd steel, Ni-Ti steel, Ni-Al steel, In-Ti steel, In-Cd steel, Ti-Ni-Cu steel, T-Ni-Fe steel, Cu-Zn steel, Carbon fiber, glass fiber, ceramic, PSZ, nitriding Silicon, shape memory alloy, Ag-Cd steel, Au-Cd steel, Cu-Al-Ni steel, Cu-Au-Zn steel, metal matrix composite (FRM), polymer matrix composite (FRP), ceramic matrix A composite material (FRC), glass fiber reinforced plastic (GFRP), elastomer (rubber), epoxy resin, or the like can be used.

  In addition, as a spring which comprises an impact-absorbing body, not only a mesh spring but a coil spring, a leaf | plate spring, a disc spring etc. are mentioned, for example, You may use combining these 2 or more types. A plurality of the same type may be used.

  One end of the coil spring is fixed or abutted to the outer peripheral surface of the outer cylinder 31 of the syringe 3, and the other end is fixed to the inner peripheral surface of the grip portion 41 of the main body portion 4.

  The dimension of the coil spring is not particularly limited, and is appropriately set according to various conditions such as the dimensions of the syringe 3 and the main body part 4, but the diameter of the coil spring is preferably about 1 to 50 mm. Is preferably about 0.1 to 22 mm, the number of windings is preferably about 1 to 20 times, and the diameter of the wire constituting the coil spring is preferably about 0.1 to 1 mm.

  Similarly, the dimensions of the disc spring and the leaf spring are not particularly limited, and are appropriately set according to various conditions such as the dimensions of the syringe 3 and the main body 4. The total length is preferably about 5 to 150 mm, the plate thickness is preferably about 0.1 to 5 mm, and the plate width is preferably about 1 to 30 mm.

The constituent materials such as a coil spring, a leaf spring, and a disc spring are not particularly limited, but the same material as the mesh spring can be applied.
According to the medical device 1, the same effect as that of the first embodiment described above can be obtained.

<Fourth embodiment>
FIG. 7 is a cross-sectional view (including a block diagram) showing a fourth embodiment of the medical device of the present invention.

  Hereinafter, the fourth embodiment will be described focusing on the differences from the first embodiment described above, and description of similar matters will be omitted.

  As shown in FIG. 7, in the medical device 1 of the fourth embodiment, the abutting portion 42 of the main body portion 4 is disposed concentrically with the grip portion 41 on the outer peripheral side of the grip portion 41. A groove 412 into which the slider 61 and the coil spring 9 are inserted is formed on the outer peripheral surface of the grip portion 41. The vibration mechanism 5 is installed at the tip of the abutting portion 42.

  Further, the outer cylinder 31 of the syringe 3 is fixed or supported by the grip portion 41. The fixing method is not particularly limited, and examples thereof include fitting, adhesion using an adhesive, fusion, and a method of fixing by frictional force.

  The vibration mitigating mechanism 7 is a mechanism for suppressing the gripping portion 41 from being vibrated by the vibration of the abutting portion 42, that is, a vibration having a phase opposite to that of the gripping portion 41 that is vibrated by the vibration of the abutting portion 42. It is a mechanism to give to.

  Specifically, the vibration relaxation mechanism 7 includes an antiphase vibration mechanism 13. The medical auxiliary tool 2 further includes a switch 14 for starting the operation of the antiphase vibration mechanism 13, a power supply 15 that supplies electric power to the antiphase vibration mechanism 13, and an abutting portion 42 for the grip portion 41 and the syringe 3. A coil spring (biasing member) 16 that biases in the distal direction is provided.

  The antiphase vibration mechanism 13 is a mechanism that vibrates the grip 41 and is installed in the grip 41. In the present embodiment, the anti-phase vibration mechanism 13 is installed in the central portion of the grip portion 41 in the axial direction.

  As the antiphase vibration mechanism 13, for example, the one exemplified as the vibration mechanism 5 described above can be used. Further, when a spring or the like provided with an eccentric weight is used as the antiphase vibration mechanism 13, the power supply 15 is not necessary. The antiphase vibration mechanism 13 and the vibration mechanism 5 may be the same (same type) or different (different types).

  The antiphase vibration mechanism 13 is configured to give the gripping portion 41 vibration having a phase opposite to that of the gripping portion 41 caused by the vibration of the padding portion 42 when the contact portion 42 vibrates by the operation of the vibration mechanism 5. ing. In other words, the antiphase vibration mechanism 13 causes the gripper 41 to vibrate with a ½ cycle shift with respect to the vibration of the gripper 41 caused by the operation of the vibration mechanism 5, thereby canceling both vibrations. Thereby, the vibration of the holding part 41 can be suppressed.

  The power supply 15 and the coil spring 16 are the same as the power supply 8 and the coil spring 9 described above, respectively, and thus description thereof is omitted.

  The switch 14 is a mechanism for starting and stopping the operation of the antiphase vibration mechanism 13 and is substantially the same as the switch 6 described above, although the wiring is slightly different. By this switch 14, the antiphase vibration mechanism 13 starts to operate substantially simultaneously with the vibration mechanism 5 and stops almost simultaneously with the vibration mechanism 5.

  Specifically, the switch 14 has a slider 141 fixed to the proximal end portion of the abutting portion 42, terminals 142 and 143 installed on the slider 141, and terminals 144 and 145 installed on the grip portion 41. doing. Further, one input terminal of the antiphase vibration mechanism 13 is electrically connected to one output terminal of the power source, and the other input terminal is electrically connected to the terminal 145. The other output terminal of the power supply 15 is electrically connected to the terminal 144.

  A groove 412 extending in the axial direction is formed on the outer peripheral surface of the grip portion 41, and the slider 141 is inserted into the groove 412 and moves in the axial direction along the groove 412 together with the abutting portion 42. To do. The coil spring 16 is inserted into the groove 412, and the distal end portion of the coil spring 16 is fixed or abutted on the slider 141, and the base end portion is fixed or abutted on the grip portion 41.

According to the medical device 1, the same effect as that of the first embodiment described above can be obtained.
One of the coil spring 9 and the coil spring 16 may be omitted.

<Fifth Embodiment>
FIG. 8 is a cross-sectional view (including a block diagram) showing a fifth embodiment of the medical device of the present invention.

  Hereinafter, the fifth embodiment will be described with a focus on differences from the first embodiment described above, and descriptions of similar matters will be omitted.

As shown in FIG. 8, the medical device 1 of the fifth embodiment has a position regulating mechanism 17.
The position restricting mechanism 17 is provided on the tip side of the vibration relaxation mechanism 7, that is, between the abutting portion 42 and the syringe 3. The position regulating mechanism 17 has a function of regulating the radial position of the distal end portion of the syringe 3 with respect to the main body portion 4.

  The position restricting mechanism 17 includes a permanent magnet 171 installed in the main body 4 and a permanent magnet 172 installed in the syringe 3.

  The shape of the permanent magnet 171 is not particularly limited, but has an annular shape in the present embodiment. The permanent magnet 171 is fixed to the inner peripheral surface of the grip portion 41 of the main body portion 4. The method for fixing the permanent magnet 171 is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method for fixing with a frictional force. The permanent magnet 171 is magnetized so that both end surfaces in the radial direction, that is, the outer peripheral surface and the inner peripheral surface become magnetic poles.

  In addition, the shape of the permanent magnet 172 is not particularly limited, but in the present embodiment, it has an annular shape. The permanent magnet 172 is disposed on the inner peripheral side of the permanent magnet 171 and is fixed to the outer peripheral surface of the distal end portion of the outer cylinder 31 of the syringe 3. Further, the permanent magnet 172 is arranged so as to face the permanent magnet 171 in the radial direction of the syringe 3. The method for fixing the permanent magnet 172 is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method for fixing with a frictional force. The permanent magnet 172 is magnetized so that both end surfaces in the radial direction, that is, the outer peripheral surface and the inner peripheral surface serve as magnetic poles, and the opposing surfaces of the permanent magnets 172 and 171 have the same polarity. .

  In the position restriction mechanism 17, the permanent magnet 172 receives a repulsive force (repulsive force) from the permanent magnet 171. Accordingly, the permanent magnet 172 is not in contact with the permanent magnet 171 and its radial position is regulated.

In this manner, the position restricting mechanism 17 restricts the radial position of the distal end portion of the syringe 3 with respect to the main body portion 4 and suppresses the vibration of the abutting portion 42 from being transmitted to the syringe 3.
According to the medical device 1, the same effect as that of the first embodiment described above can be obtained.

  In the medical device 1, the syringe 3 is supported at the base end portion by the grip portion 41 of the main body portion 4 via the vibration relaxation mechanism 7, and further, the position restriction mechanism 17 allows the syringe 3 to be attached to the main body portion 4. The radial position of the tip is regulated. Thereby, the syringe 3 is stably supported by the medical auxiliary tool 2, and thereby, the needle tube 34 can be inserted into a target location more easily and reliably.

  The position restricting mechanism 17 is not limited to the one described above, and for example, the same mechanism as the vibration mitigating mechanism 7 in the second embodiment and the third embodiment may be used.

  Further, the vibration relaxation mechanism 7 is not limited to the illustrated one, and for example, the vibration relaxation mechanism 7 similar to the vibration relaxation mechanism 7 in the second to fourth embodiments may be used.

<Sixth Embodiment>
FIG. 9 is a cross-sectional view (including a block diagram) showing a sixth embodiment of the medical device of the present invention.

  Hereinafter, the sixth embodiment will be described with a focus on differences from the first embodiment described above, and descriptions of similar matters will be omitted.

  As shown in FIG. 9, in the medical device 1 of the sixth embodiment, the medical auxiliary tool 2 includes a vibration transmission suppressing mechanism 18 that suppresses transmission of vibration of the abutting portion 42 to the hand holding the grip portion 41. Have.

  The vibration transmission suppressing mechanism 18 includes an impact absorber 19 that absorbs an impact. The shock absorber 19 has a cylindrical shape and is provided on the outer peripheral surface of the grip portion 41. In this case, the inner peripheral surface of the shock absorber 19 is fixed to the outer peripheral surface of the grip portion 41. This fixing method is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method of fixing with a frictional force.

  As the shock absorber 19, the same one as the shock absorber 11 in the second embodiment can be used.

  Needless to say, the vibration transmission suppressing mechanism 18 may be composed of other than the shock absorber 19.

According to the medical device 1, the same effect as that of the first embodiment described above can be obtained.
In this medical device 1, the vibration transmission suppressing mechanism 18 can suppress the vibration of the abutting portion 42 from being transmitted to the hand holding the gripping portion 41, so that the needle tube 34 can be used more easily and reliably. Can be inserted in the place.

Note that the vibration relaxation mechanism 7 is not limited to the illustrated one, and for example, the vibration relaxation mechanism 7 similar to that in the second to fourth embodiments may be used.
The sixth embodiment can also be applied to the fifth embodiment.

<Seventh embodiment>
FIG. 10 is a cross-sectional view (including a block diagram) showing a seventh embodiment of the medical device of the present invention.

Hereinafter, the seventh embodiment will be described with a focus on differences from the first embodiment described above, and description of similar matters will be omitted.
The medical device 1 of 7th Embodiment is a thing of the form which medical workers, such as a doctor, use.

  As shown in FIG. 10, in the medical device 1, a pair of protrusions 413 and 414 are formed on the outer peripheral surface of the gripping part 41 so as to protrude radially outward. The protrusions 413 and 414 are arranged so as to be line-symmetric with respect to the central axis of the grip portion 41. Each protrusion 413, 414 functions as a finger hook for hooking a finger.

  When using the medical device 1, for example, a medical worker hangs the middle finger on the protrusion 414, the ring finger on the protrusion 413, and the thumb is placed on the flange 332 of the pusher 33 of the syringe 3. Do. Needless to say, the medical device 1 may be used for self-injection. Further, the contact surface 421 of the abutting portion 42 is inclined at a predetermined angle with respect to the central axis of the abutting portion 42. Moreover, in order to ensure the visibility of the inside of the contact part 42, it is preferable that it has light transmittance (substantially transparent or translucent).

  Further, in the magnet unit 7 b of the vibration relaxation mechanism 7, the flange 311 of the outer cylinder 31 of the syringe 3 is used as a support member that supports the permanent magnets 74 and 75. Accordingly, it is possible to prevent the positions of the permanent magnets 74 and 75 from being shifted, and it is not necessary to separately provide a support member, so that the number of parts can be reduced and the structure can be simplified.

According to the medical device 1, the same effect as that of the first embodiment described above can be obtained.
In addition, you may change each protrusion 413,414 to an annular | circular shaped flange, for example.
The seventh embodiment can also be applied to the second to sixth embodiments.

<Eighth Embodiment>
FIG. 11 is a perspective view showing an eighth embodiment of the medical device of the present invention.

  Hereinafter, the eighth embodiment will be described with a focus on differences from the second embodiment described above, and description of similar matters will be omitted.

  As shown in FIG. 11, in the medical device 1 of the eighth embodiment, the grip portion 41a of the main body portion 4a of the medical auxiliary device 2 has a box shape, and one end portion of the grip portion 41a has An inclined surface 415 is formed. The inclined surface 415 is formed with a C-shaped clip (support member) 416 that supports the syringe 3. The syringe 3 is detachably attached to the clip 416.

  The shock absorber 21 of the vibration relaxation mechanism 7 has a C shape and is provided between the clip 416 and the syringe 3. In this case, the outer peripheral surface of the shock absorber 21 is fixed to the inner peripheral surface of the clip 416. This fixing method is not particularly limited, and examples thereof include adhesion with an adhesive, fusion, and a method of fixing with a frictional force. The proximal end portion of the outer cylinder 31 of the syringe 3 is in contact with the inner peripheral surface of the shock absorber 21 and is held by the clip 416 through the shock absorber 21. The syringe 3 is not in contact with any part other than the shock absorber 21 with respect to the medical auxiliary tool 2.

  In addition, as the shock absorber 21, the thing similar to the shock absorber 11 in 2nd Embodiment can be used.

  The abutting portion 42a is formed so as to protrude from the end portion on the side where the inclined surface 415 of the grip portion 41a is formed.

  The abutting portion 42a has a C-shaped cross section, that is, the contact surface 421a has a C-shape. The distal end portion of the syringe 3 is inserted into the abutting portion 42a.

  In addition, an operation switch (not shown) is installed at a predetermined position of the grip portion. When the operation switch is operated, the switch 6 is turned on and off.

According to this medical device 1, the same effect as the second embodiment described above can be obtained.
The eighth embodiment can also be applied to the first embodiment and the third to seventh embodiments.

  As mentioned above, although the medical aid and medical device of this invention were demonstrated based on embodiment of illustration, this invention is not limited to this, The structure of each part is arbitrary structures which have the same function Can be substituted. In addition, any other component may be added to the present invention.

  In addition, the present invention may be a combination of any two or more configurations (features) of the embodiment.

  Moreover, although the magnet of the vibration mitigation mechanism is a permanent magnet in the embodiment, the present invention is not limited to this, and may be an electromagnet, for example. In addition, when using an electromagnet, it comprises so that the action | operation of an electromagnet works with the action | operation of a vibration mechanism, for example.

  Moreover, in the said embodiment, although a syringe is an instrument which administers liquids, such as a chemical | medical solution, in this invention, it is not limited to this, For example, the instrument which collects body fluids, such as blood, may be sufficient.

  Moreover, although the pressing operation of a syringe is performed manually in the said embodiment, in this invention, it is not limited to this, For example, you may come to perform using automatic injection apparatuses, such as a pump.

  In the above-described embodiment, the syringe is a device that has a needle tube and administers a liquid via the needle tube. However, in the present invention, the syringe is not limited to this, for example, without using a needle tube such as a jet injector. It may be a device for administering a liquid.

  In the above-described embodiment, the syringe is a device for manually administering a liquid. However, in the present invention, the syringe is not limited thereto. For example, the syringe may be a device for automatically administering a liquid such as an auto injector. Good. As an example of the auto injector, the auto injector has, for example, a biasing member such as a coil spring that biases the pusher in the distal direction, and when the liquid is administered, the pusher is moved by the biasing force of the coil spring. The pusher is pressed in the distal direction, and the pusher is automatically moved in the distal direction.

DESCRIPTION OF SYMBOLS 1 Medical tool 2 Medical auxiliary tool 3 Syringe 31 Outer cylinder 311 Flange 32 Gasket 321, 322 Protrusion part 33 Pusher 331 Main part 332 Flange 34 Needle tube 4, 4a Main part 41, 41a Grasping part 411, 412 Groove 413, 414 Protrusion Part 415 Inclined surface 416 Clip 417 Support part 42, 42a Contact part 421, 421a Contact surface 5 Vibration mechanism 6 Switch 61 Slider 62-65 Terminal 7 Vibration relaxation mechanism 7a, 7b Magnet unit 70a, 70b Support member 71-75 Permanent magnet DESCRIPTION OF SYMBOLS 8 Power supply 9 Coil spring 11 Shock absorber 12 Mesh spring 13 Reverse phase vibration mechanism 14 Switch 141 Slider 142-145 Terminal 15 Power supply 16 Coil spring 17 Position control mechanism 171, 172 Permanent magnet 18 Vibration transmission suppression mechanism 19, 21 Shock absorption Body 100 surface of the living body

Claims (15)

A main body portion that includes a contact portion that supports a syringe and has an abutting surface that abuts against a target site on a living body surface;
A vibration mechanism for vibrating the contact portion;
A switch for starting the operation of the vibration mechanism;
A medical auxiliary device comprising: a vibration mitigation mechanism that suppresses transmission of vibration of the abutment portion to the syringe. The main body has a cylindrical shape,
The medical aid according to claim 1, wherein the syringe is inserted into the main body. The syringe is provided with a needle tube having a sharp needle tip at the tip,
The abutting portion has a cylindrical shape, a first position covering at least the needle tip of the needle tube, and a second position where the needle tip is retreated from the first position in the proximal direction. The medical aid according to claim 2, which is movable between the two.   The medical auxiliary tool according to claim 3, further comprising a biasing member that biases the abutting portion in a distal direction with respect to the syringe.   The switch does not operate the vibration mechanism when the abutting portion is located at the first position, and starts the operation of the vibration mechanism when the abutting portion moves to the second position. The medical aid according to claim 3 or 4, wherein the medical aid is configured.   The medical assistance tool according to claim 1 or 2, wherein the vibration relaxation mechanism includes an impact absorber that is provided between the main body and the syringe and absorbs an impact.   The vibration relaxation mechanism has a plurality of magnets provided between the main body and the syringe, and suppresses the vibration of the abutting portion from being transmitted to the syringe by the repulsive force of the plurality of magnets. The medical aid of any one of Claims 1-6 comprised.   The medical auxiliary tool according to any one of claims 1 to 7, wherein a position regulating mechanism that regulates a position of the syringe with respect to the main body is provided between the contact portion and the syringe.   The medical aid according to any one of claims 1 to 8, wherein the vibration relaxation mechanism has a function of supporting the syringe. The main body has a gripping part that is gripped by hand during use,
The medical auxiliary tool according to any one of claims 1 to 9, wherein the vibration relaxation mechanism is provided between the grip portion and the syringe. The main body has a gripping part that is gripped by hand during use,
The medical aid according to any one of claims 1 to 5, wherein the vibration relaxation mechanism suppresses the gripping portion from vibrating due to vibration of the abutting portion.   The medical auxiliary tool according to claim 11, wherein the vibration relaxation mechanism gives the gripping part vibration having a phase opposite to that of the gripping part that is vibrated by vibration of the abutting part. The main body has a gripping part that is gripped by hand during use,
The medical auxiliary tool according to any one of claims 1 to 12, further comprising a vibration transmission suppression mechanism that suppresses transmission of vibration of the abutment portion to the hand gripping the grip portion.   The medical auxiliary tool according to claim 13, wherein the vibration transmission suppressing mechanism includes an impact absorber that is provided on an outer surface of the grip portion and absorbs an impact. The medical aid according to any one of claims 1 to 14,
A medical device comprising the syringe supported by the main body.

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