Medical Devices

Abstract

In order to provide a medical device having a power supply means making it possible to avoid the risk of running out of battery, a medical device is equipped with a medical device main body and a first battery pack for power supply provided detachably from the medical device main body, the first battery pack has a power receiving coil for receiving magnetic field generated by a power transmission coil provided on a power transmission side, and a secondary battery charged based on the power received by the power receiving coil, and the battery pack is configured to be chargeable without contact even when detached from the medical device main body.

Description

[Technical field]

[0001] The present invention relates to medical equipment, and more particularly to a power supply means for medical equipment. [Background technology]

[0002] In the medical field, handheld medical devices have been used for examining subjects such as humans and animals. Patent Document 1 discloses an examination device that can irradiate a slit light onto the subject's eye and examine the anterior segment while being held in one hand by an operator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4136620 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, some medical devices are equipped with functions that consume power, and as the number of functions increases, the amount of power consumed tends to increase. From the viewpoint of ensuring a stable power supply, it is most preferable to secure the power supply by a power cord, but in the case of a medical device that is used while being held by a doctor, such as the examination device described in Patent Document 1, the power cord may be a hindrance, so a configuration in which the power supply is secured by a battery such as a secondary battery provided inside may be prioritized. In the case of a medical device that can secure a power supply by a wire, there is no problem because the power supply is always stable, but in the case of a medical device that secures a power supply by an internal battery, there is a risk of the battery running out. If the medical device uses a secondary battery as the battery, the risk can be avoided by frequently charging it, but it is difficult to manage the charging timing of a medical device that is used daily in a medical institution, and if the device is not charged for a long time, the battery may run out at the time when it is desired to use it.

[0005] The present invention has been made in consideration of the above problems, and has an object to provide a medical device having a power supply means that can avoid the risk of the battery running out. [Means for solving the problem]

[0006] The medical device of the present invention comprises a medical device main body and a first battery pack for supplying power that is detachably attached to the medical device main body, the first battery pack having a receiving coil for receiving a magnetic field generated by a transmitting coil provided on the transmitting side, and a secondary battery that is charged based on the power received by the receiving coil, and is configured to be capable of contactless charging even when detached from the medical device main body.

[0007] The medical device according to the present invention is characterized in that it further comprises a second battery pack for power supply, which is configured to be attachable to the medical device body in place of the first battery pack.

[0008] In addition, the medical device of the present invention is characterized in that the second battery pack has a receiving coil for receiving a magnetic field generated by a transmitting coil provided on the transmitting side, and a secondary battery that is charged based on the power received by the receiving coil, and is configured to be capable of contactless charging even when removed from the medical device main body.

[0009] In addition, the medical device of the present invention is characterized in that the second battery pack has a battery holder into which a primary battery or a secondary battery can be attached, and power is supplied to the medical device main body by the primary battery or secondary battery attached to the battery holder.

[0010] In the medical device according to the present invention, the first battery pack has at least one shape characteristic of being asymmetrical up and down, asymmetrical left and right, and asymmetrical front and rear.

[0011] In addition, the medical device of the present invention is characterized in that the medical device main body includes a main body side terminal portion that is responsible for conducting electricity between the first battery pack and the medical device body, and a protective convex portion arranged on either side of the main body side terminal portion, and the first battery pack includes a battery side terminal portion that can come into contact with the main body side terminal portion, and a protective recess formed on either side of the battery side terminal portion to receive the protective convex portion.

[0012] In addition, the medical device of the present invention further comprises a charging stand having a power transmitting coil capable of transmitting power to the power receiving coil of the first battery pack by electromagnetic induction, a mounting surface for mounting the medical device main body, and a main body receiving portion for fixing the position of the medical device main body on the mounting surface by fitting a part of the medical device main body, and the mounting surface has a battery mounting position indication means for indicating the position of the first battery pack when the medical device main body is fitted into the main body receiving portion. Effect of the Invention

[0013] The embodiments of the present application address one or more of the deficiencies. [Brief description of the drawings]

[0014] [Figure 1] 1 is an external view showing an external appearance example of a configuration of a medical device corresponding to at least one of the embodiments of the present invention. [Diagram 2] 1 is an external view showing an external appearance example of a configuration of a medical device corresponding to at least one of the embodiments of the present invention. [Diagram 3] 1 is an external view showing an external appearance example of a configuration of a medical device corresponding to at least one of the embodiments of the present invention. [Figure 4] 1 is an external view showing an example of a battery pack insertion position at the bottom of a main body of a medical device corresponding to at least one of the embodiments of the present invention. [Diagram 5] 1 is a perspective view showing an example of a battery pack used in a medical device corresponding to at least one of the embodiments of the present invention. [Figure 6] FIG. 1 is a perspective view showing an example of a charging stand for placing a medical device according to at least one of the embodiments of the present invention. [Figure 7] FIG. 1 is a block diagram showing an example of a contactless charging method applied to a medical device corresponding to at least one of the embodiments of the present invention. [Figure 8] 1 is a perspective view showing an example of a battery pack used in a medical device corresponding to at least one of the embodiments of the present invention. [Figure 9] FIG. 11 is a perspective view showing another example of a charging stand for placing a medical device according to at least one of the embodiments of the present invention. [Figure 10] FIG. 11 is a plan view showing another example of a charging stand for placing a medical device according to at least one of the embodiments of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an example of a medical device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view showing an external example of a configuration of a medical device corresponding to at least one of the embodiments of the present invention. As shown in FIG. 1, the medical device according to the embodiment of the present invention includes a medical device main body 100, a battery pack (first battery pack) 200, and a charging stand 400. In addition, a spare battery pack (second battery pack) 300 may be further included. The medical device according to the embodiment of the present invention is characterized in that it employs a battery pack as a power source, and that the battery pack can be charged by contactless charging. In the following description, the reference numeral 100 may be used to refer to the entire medical device.

[0016] The medical device according to the embodiment of the present invention may be any medical device that requires power supply from a battery. In the following, as an example of the medical device, a device called a slit lamp is used for irradiating slit light onto an eye (hereinafter referred to as "examined eye"), which is an example of a subject, and observing the scattered light generated by scattering in the examined eye to examine the cornea, crystalline lens, etc. of the examined eye. Other examples of the medical device include ophthalmic devices such as a tonometer, a fundus camera, and an auto reflex keratometer, and a thermometer. In the following, a case where the medical device is an examination device using a slit lamp will be described as an example. In the following, a configuration of an examination device using a slit lamp, which is an example of a medical device according to the embodiment of the present invention, will be described.

[0017] 1 to 3 are external views showing an external appearance example of a configuration of a medical device 100 corresponding to at least one of the embodiments of the present invention. The medical device 100 is a device for examining a subject's eye by operating it while holding it in one hand. As shown in FIGS. 1 to 3, the medical device 100 includes an irradiation unit 10, an observation unit 20, a grip unit 30, a finger hook unit 40a, an index finger side operation unit 50, a thumb side operation unit 60a, a base unit 70, an irradiation angle adjustment unit 80, and a scale unit 90.

[0018] The irradiation unit 10 has a function of irradiating the subject's eye with irradiation light. In this example, the irradiation unit 10 has a function of irradiating the subject's eye with slit light or spot light as irradiation light. The irradiation unit 10 is composed of an irradiation tube 11, an irradiation port 12, a disk operation unit 13, a swing unit 14, and a separate light source installation unit 15. The irradiation tube 11 has a known configuration for irradiating slit light as described in the above-mentioned Patent Document 1 arranged inside. In this example, the irradiation tube 11 has a light source, a condenser lens, a spot disk, a slit disk, and a projector lens inside. An example of the light source is an LED. In the irradiation tube 11, light emitted from the light source is collected by a condenser lens and then passes through the slit disk to generate slit light or spot light. The slit light or spot light is incident on the irradiation port 12. The irradiation port 12 is composed of a projector prism arranged inside. The slit light or spot light incident on the projector prism changes direction and is irradiated toward the subject's eye outside the device. The disk operation unit 13 is a dial that allows an operator to rotate the spot disk and the slit disk to select the length and width of the irradiated slit light and the diameter of the spot light. The swing unit 14 is provided at one end and at the bottom of the irradiation tube 11, and is made of a plate-like member whose other end, located a predetermined distance away from the irradiation tube 11, is connected to the irradiation angle adjustment unit 80 described later. A marker for indicating the rotation angle of the irradiation unit 10 is provided at the part of the swing unit 14 that contacts the outer periphery of the irradiation angle adjustment unit 80.

[0019] The separate light source installation section 15 has a function of irradiating the subject's eye with light for fluorescent observation illumination and background illumination, and is provided separately from the irradiation port 12. The separate light source installation section 15 is composed of a fluorescent observation illumination light source installation section and a background illumination light source installation section. For example, a blue LED is installed as a light source in the fluorescent observation illumination light source installation section, and a white LED is installed as a light source in the background illumination light source installation section. The separate light source installation section 15 may include only one of the fluorescent observation illumination light source installation section and the background illumination light source installation section. Conventionally, light for fluorescent observation illumination and background illumination was irradiated from the same irradiation port as the slit light and spot light, but it was necessary to switch between the slit light and spot light and the fluorescent observation illumination and background illumination, and simultaneous irradiation was not possible. However, since a light source is directly installed in the separate light source installation section 15 provided in the medical device 100, light for fluorescent observation illumination and background illumination can also be irradiated when irradiating the slit light and spot light. As a result, it can be used for, for example, photographing to explain the irradiation state of the slit light to the subject (for example, photographing using background illumination of the anterior eye of the subject). In addition, since the light for the fluorescent observation illumination and the background illumination is generated on a different optical path from the optical path of the slit light and the spot light, the irradiation range is not limited by the size of the slit turret, and it is possible to install the light source so that the light for the fluorescent observation illumination and the background illumination hits a wider range than when they are generated on the same optical path. In addition, as shown in FIG. 2, the separate light source installation unit 15 is provided so that the light irradiated from the irradiation port 12 and the light irradiated from the separate light source installation unit 15 always face in approximately the same direction. For example, the separate light source installation unit 15 rotates in the same manner as the rotation of the irradiation port 12. With such a configuration, it is not necessary to separately adjust the direction of the fluorescent observation illumination and the background illumination when adjusting the irradiation direction of the slit light and the spot light, and as a result, it is possible to improve the ease of handling of the medical device 100.

[0020] The observation unit 20 has a function of observing the subject's eye with the irradiation light emitted from the irradiation unit 10. In this example, the observation unit 20 includes an observation housing 21, a right eye eyepiece 22, a left eye eyepiece 23, and a variable magnification lever 24. The observation housing 21, the right eye eyepiece 22, and the left eye eyepiece 23 are internally configured with a known observation optical system described in the above-mentioned Patent Document 1. The observation optical system is divided into an observation optical system for the right eye and an observation optical system for the left eye. The observation optical system for the right eye is configured inside the observation housing 21 and the right eye eyepiece 22. The observation optical system for the left eye is configured inside the observation housing 21 and the left eye eyepiece 23. For example, the observation optical system is composed of at least an objective lens, an eyepiece prism, a reticle lens, and an eyepiece. The slit light from the irradiation unit 10 is scattered by the subject's eye and enters the objective lens as scattered light. The incident scattered light passes through the eyepiece prism, the reticle lens, and the eyepiece to become light that can be observed by the operator. The magnification change lever 24 is a lever that can change the observation magnification of the eye to be examined by moving the objective lens back and forth by moving it left and right.

[0021] The grip portion 30 is provided so that an operator can hold it between the thumb and at least one of the four fingers on the index finger side of one hand (hereinafter referred to as "fingers on the index finger side"). The shape of the grip portion 30 is not particularly limited as long as the operator can hold it, but a substantially cylindrical shape is preferable. In this example, the grip portion 30 is attached to the lower part of the observation housing 21 as shown in Figs. 1 to 3, and has a shape like a warped cylinder. Hereinafter, a state in which the central axis of the grip portion 30 is oriented in a substantially vertical direction (up and down direction in Figs. 1 to 3) is referred to as a "reference state". The direction of the central axis of the grip portion 30 shown in Figs. 1 to 3 is assumed to be substantially vertical. Therefore, the state shown in Figs. 1 to 3 is the reference state.

[0022] The finger hook 40a is provided on the grip portion 30 so that when an operator holds the grip portion 30 with one hand, the finger hook 40a can be hooked on one of the fingers on the index finger side. Here, the index finger side refers to the side of the side of the grip portion 30 that the index finger can contact when the operator holds the grip portion 30. The fingers on the index finger side are at least one of the index finger, middle finger, ring finger, and little finger. In addition, the finger hook 40a hooking on the finger refers to a state in which the finger is subjected to the load of the finger hook 40a. The shape of the finger hook 40a is not particularly limited as long as the finger on the index finger side can be hooked on the finger. In the example shown in FIG. 1 to FIG. 3, the finger hook 40a has a shape that protrudes from the side of the grip portion 30 in a brim-like shape. By providing the finger hook 40a on the grip portion 30, the operator can hold the grip portion 30 by hooking the finger hook 40a onto any of the fingers located on the index finger side. Therefore, it becomes possible for the operator to stably perform an inspection operation at the ideal position of the hand holding the grip portion 30 determined by the finger hook 40a. Examples of the shape of the finger hook will be described later.

[0023] The index finger side operation unit 50 is used for the operation of the examination, and is provided at a position within the reach of the finger assumed to be used for the operation among the fingers on the index finger side whose position is determined by the finger hook portion 40a when the operator holds the grip portion 30 with one hand. The finger assumed to be used for the operation is not particularly limited as long as it is any of the fingers on the index finger side, but a finger other than the finger on which the finger hook portion 40a is hooked is preferable. In this example, the index finger is assumed to be used for the operation. In addition, the position within the reach of the finger refers to a position that can be reached by moving the finger. An example of a position within the reach of the finger assumed to be used for the operation is the position of the grip portion 30 facing the finger assumed to be used for the operation when the operator holds the grip portion 30 with one hand. The index finger side operation unit 50 is, for example, a button or a switch. In this example, the index finger side operation unit 50 is a switch in which a light source arranged in the irradiation tube 11 of the irradiation unit 10 emits light while being pressed down, and light is irradiated from the irradiation port 12.

[0024] Moreover, the index finger side operation unit 50 may be provided at a position within the reach of a finger for operation that is closer to the thumb than the finger that receives the load from the finger hook 40a. For example, if the finger that receives the load in the reference state is the middle finger, the finger that is closer to the thumb than the finger that receives the load is the index finger. With this configuration, it becomes possible to perform the test operation more stably with a finger that is relatively less affected by the load from the finger hook 40a.

[0025] The thumb side operation unit 60a is used for the operation of the examination of the subject's eye, and is provided at a position within the reach of the thumb, the position of which is determined by the finger hook 40a when the operator holds the grip unit 30 with one hand. The thumb side operation unit 60a may be provided with a plurality of operation locations. The operation locations include operation members such as buttons, various switches, and dials for inputting operations related to the examination of the subject's eye. In this example, the operation locations of the thumb side operation unit 60a include operation buttons 61a to 63a and an operation dial 64 as operation members. The operation buttons 61a to 63a are assigned various functions related to the examination, such as turning on and off the fluorescent observation illumination and background illumination. The operation dial 64 is assigned a function of adjusting the light amount of the slit light irradiated from the irradiation port 12 of the irradiation unit 10, for example. The operation locations of the plurality of operation buttons included in the thumb side operation unit 60a are not particularly limited as long as they are within the reach of the thumb, the position of which is determined by the finger hook 40a when the operator holds the grip unit 30 with one hand. Examples of the shapes, sizes, arrangements, etc. of the multiple operating members included in the thumb side operating section 60a will be described later.

[0026] The base portion 70 is a plate-like member having one end portion attached to the lower portion of the grip portion 30. The other end portion of the base portion 70 is provided with an irradiation angle adjustment portion 80, which will be described later.

[0027] The irradiation angle adjustment unit 80 is a member that adjusts the irradiation angle of the irradiation light by rotating the irradiation unit 10 with the rotation axis as a reference. In this example, the irradiation angle adjustment unit 80 is fixedly attached to the other end portion of the base unit 70. In this example, the irradiation angle adjustment unit 80 is rotatably attached to a hole formed in the swing unit 14 at a position spaced a predetermined distance from the irradiation tube 11, and the upper surface is exposed. That is, the base unit 70 and the swing unit 14 are connected via the irradiation angle adjustment unit 80, and the swing unit 14 is rotatable with respect to the base unit 70 with the irradiation angle adjustment unit 80 as a reference. The irradiation angle adjustment unit 80 is, for example, configured by a bearing.

[0028] The scale unit 90 has a scale indicating the rotation angle on the upper surface of the rotating shaft. Specifically, the scale unit 90 has a scale corresponding to the irradiation angle of the irradiation light irradiated by the irradiation unit 10, which is provided in an arc shape on the upper surface of the rotating shaft. In this example, the scale unit 90 is provided as a mark indicating the rotation angle based on the irradiation angle adjustment unit 80 of the swing unit 14, in an arc shape on the upper surface of the irradiation angle adjustment unit 80 fitted into the swing unit 14. The scale unit 90 will be described in detail later.

[0029] Fig. 4 is an external view showing an example of a battery pack insertion location on the bottom of the main body of a medical device corresponding to at least one of the embodiments of the present invention. As shown in Fig. 4, a mounting recess 110 for mounting the battery pack 200 (300) is formed on the bottom of the medical device main body 100. On the inside of this mounting recess 110, a main body side terminal part 120 for electrically connecting with the battery pack 200 (300), a protection protrusion part 130 for protecting the main body side terminal part 120, and a locking recess part 140 for fixing the battery pack 200 (300) are provided.

[0030] FIG. 5 is a perspective view showing an example of a battery pack used in a medical device corresponding to at least one of the embodiments of the present invention. As shown in FIG. 5, the battery pack 200 includes a battery side terminal portion 210 for electrically connecting with the main body side terminal portion 120, a protection recess 220 for receiving the protection protrusion portion 130 when the battery pack 200 is attached to the mounting recess 110, a locking protrusion portion 230 for locking the battery pack 200 by fitting into the locking recess 140, and a locking spring member 240 for attaching and detaching the battery pack 200 to the mounting recess 110. The locking spring member 240 locks and releases the battery pack 200 by elastic force against a groove (not shown) provided in the mounting recess 110. In addition, the battery pack 200 preferably has at least one of the shape characteristics of being asymmetrical up and down, asymmetrical left and right, and asymmetrical front and back. By providing the battery pack 200 with the shape characteristics of being asymmetrical up and down, asymmetrical left and right, and asymmetrical front and back, it is possible to prevent erroneous insertion into the mounting recess 110. The battery pack (second battery pack) 300 shown in FIG. 1 has the same structure as the battery pack (first battery pack) 200, except that it is a spare, and therefore a description thereof will be omitted.

[0031] FIG. 6 is a perspective view showing an example of a charging stand on which a medical device corresponding to at least one of the embodiments of the present invention is placed. As shown in FIG. 6, the charging stand 400 includes a placement surface 410 for placing the medical device main body 100, a main body receiving part 420 for fixing the position of the medical device main body on the placement surface by fitting a part of the medical device main body, and a battery placement position display means 430 for indicating the position of the battery pack 200 (300) in a state in which the medical device main body 100 is fitted to the main body receiving part 420. Although not shown in the figure, the charging stand 400 includes a power cord for drawing power from a commercial power source. In addition, an AC adapter 440 for converting AC voltage from a commercial power source to DC voltage may be provided inside the charging stand 400, or may be provided between the commercial power outlet and the charging stand 400. The main body receiving part 420 plays a role of fixing the medical device main body 100 itself and a role of accurately positioning the medical device main body. The battery placement position indication means 430 may be any means capable of indicating the placement position of the battery pack 200 (300), but in the example of Fig. 6, an indication line indicating the placement position is displayed on the placement surface 410. As another example of the battery placement position indication means 430, it is possible to form only the place where the battery pack 200 (300) is placed one step lower to form a recess. This battery placement position indication means 430 effectively functions as a configuration for accurately identifying the placement location when only the battery pack 200 (300) is charged separately from the medical device main body 100, as shown in the lower part of Fig. 6.

[0032] FIG. 7 is a block diagram showing an example of a contactless charging method applied to a medical device corresponding to at least one of the embodiments of the present invention. As shown in FIG. 7, the charging stand 400 includes an AC adapter 440 and a power transmission coil 450 for transmitting power for contactless charging. The battery pack 200 (300) includes a power reception coil 250 for receiving a magnetic field (magnetic flux) generated by the power transmission coil 450 and converting it into a current, a charging control IC 260 for controlling charging based on the current converted by the power reception coil 250, a secondary battery 270 to be charged, and a battery side terminal unit 210 for electrically connecting to the main body. The medical device main body 100 supplies power from the battery pack 200 (300) to a required portion via a main body side terminal unit 120 electrically connected to the battery side terminal unit 210. As shown in FIG. 7, when the medical device main body 100 or the battery pack 200 (300) alone is correctly positioned and placed on the charging stand 400, the power transmitting coil 450 and the power receiving coil 250 are configured to face each other so as to maximize charging efficiency.

[0033] As described above, the medical device of the present invention comprises a medical device main body and a first battery pack for supplying power that is detachably attached to the medical device main body. The first battery pack has a receiving coil for receiving a magnetic field generated by a transmitting coil provided on the power transmitting side, and a secondary battery that is charged based on the power received by the receiving coil. The first battery pack is configured to be capable of contactless charging even when detached from the medical device main body, making charging easy by using contactless charging. Also, a receiving coil is provided inside the battery pack to enable contactless charging of the battery pack alone. As a result, charging is possible in two ways: by placing the medical device 100 with the battery pack attached on the charging stand and charging, or by removing the battery pack and charging the battery pack alone. In addition, since the battery pack can be charged contactlessly by itself, if an identical spare battery pack is prepared, one battery pack (first battery pack) can be attached to the medical device main body 100 and the other battery pack (second battery pack) can be charged while the medical device is being used. Therefore, even if one battery pack (first battery pack) runs out of charge, it is possible to continue using the medical device by simply replacing it with the other battery pack (second battery pack).

[0034] In the above embodiment, the second spare battery pack has been described as having the same configuration as the first battery pack 200, but the second spare battery pack may use a dry battery. FIG. 8 is a perspective view showing an example of a battery pack used in a medical device corresponding to at least one of the embodiments of the present invention. The battery pack 500 can be attached to the medical device body 100 in the same manner as the battery pack 200 by sharing the shape and terminal structure, but as shown in FIG. 8, the battery pack 500 has a portion for attaching a dry battery 510 instead of a secondary battery, and is configured to supply power from the dry battery 510. In this way, by using the dry battery 510 as the spare battery pack 500, when the battery pack 200 runs out of charge, the medical device 100 can be used using the dry battery 510, and during that time, the battery pack 200 can be charged by itself.

[0035] Fig. 9 is a perspective view showing another example of a charging stand on which a medical device corresponding to at least one of the embodiments of the present invention is placed. Fig. 10 is a plan view showing another example of a charging stand on which a medical device corresponding to at least one of the embodiments of the present invention is placed. The configuration of a charging stand 600 as another example will be described with reference to Figs. 9 and 10.

[0036] As shown in Figures 9 and 10, the charging stand 600 is equipped with a horizontal placement surface 610 for placing the medical device main body 100, a grip fixing portion 620 (main body fixing means) for fixing the grip portion 30 when the medical device main body 100 is placed, a battery guide line 630 (battery placement position display means) that indicates the appropriate placement position when charging the battery pack 200 (300) alone, and a main body guide line 640 (main body placement position determining means) that indicates the appropriate placement position when charging the medical device main body 100.

[0037] The grip fixing part (main body fixing means) 620 is formed in a bank shape higher than the placement surface 610, and has the effect of determining the placement position of the medical device main body 100 by surrounding the lower end of the grip part 30 and the base part 70 with the bank-shaped part. As shown in FIG. 2, the medical device main body 100 in this example determines the positional relationship between the grip part 30 and the base part 70 so that the grip end 31, which is the lower end of the grip part 30, protrudes from the base part rear end 71 of the base part 70 (it can also be said that the base part rear end 71 is set back from the grip end 31). The grip fixing part 620 is formed so as to contact the grip end 31 and the base part rear end 71 when the medical device main body 100 is placed at an appropriate position. Therefore, in this example, the grip fixing part 620 is formed in a state in which the part corresponding to the grip end 31 is recessed as a grip end housing part 622. An indicator 621 for displaying the charging status of the battery pack 200 (300) may be provided at a certain location (for example, the center) of the grip fixing part 620. In this case, the storage position of the grip end 31 becomes easier to see, which helps to smoothly place the medical device 100. In the charging stand 600 shown in Figs. 9 and 10, the grip end 31 portion is fixed as the main body fixing means, but the main body fixing means may be any means capable of fixing at least a part of the medical device main body 100.

[0038] The battery guide lines 630 (battery placement position indicator) indicate the placement position of the battery pack 200 (300) such that the positions of the power transmitting coil of the charging stand 620 and the power receiving coil of the battery pack 200 (300) coincide (positional relationship that maximizes charging efficiency). By providing the battery guide lines 630, the user can place the battery pack 200 (300) in the optimal position on the placement surface 610 even in a situation where the battery pack can be placed freely on the placement surface 610.

[0039] The guide wire 640 for the main body (main body placement position determining means) indicates the placement position of the medical device main body 100 such that the positions of the power transmitting coil of the charging stand 620 and the power receiving coil of the battery pack 200 (300) connected to the medical device main body 100 coincide (the positional relationship is such that charging efficiency is maximized). By providing this guide wire 640 for the main body, the user can place the medical device main body 100 in the optimal position on the placement surface 610. Note that the position of the battery pack 200 (300) connected to the medical device main body 100 at the optimal placement position of the medical device main body 100 indicated by the guide wire 640 for the main body and the position of the battery pack 200 (300) connected to the medical device main body 100 at the optimal placement position of the battery pack 200 (300) indicated by the battery guide wire 630 are the same.

[0040] In this way, the charging stand 600 shown in Figs. 9 and 10 can suppress a decrease in charging efficiency caused by misalignment of the power receiving coil with respect to the power transmitting coil. [Explanation of symbols]

[0041] 100 Medical device body (medical device) 10 Irradiation unit 11 Irradiation tube 12 Irradiation port 13 Disk operation unit 14 Swing section 15 Marker 20 Observation Section 21 Observation housing 22 Observation section for right eye 23 Left eye observation section 24 Magnification lever 30 Grip section 31 Grip end 40a~40c Finger rest 50 Index finger side operation part 60a~60e Thumb side operation part 70 Base 71 Rear end of base 80 Irradiation angle adjustment section 90 Scale 110 Mounting recess 120 Main unit terminal 130 Protective protrusion 140 Locking recess 200 Battery Packs 210 Battery side terminal section 220 Protective recess 230 Locking protrusion 240 Locking spring member 250 Receiving coil 260 Charging Control IC 270 Secondary battery 300 Battery Pack 400 charging stand 410 Placement surface 420 Main body receiving part 430 Battery placement position display means 440 AC adapter 450 Transmitting Coil 500 Battery Packs 510 Dry cell battery 600 charging stand 610 Placement surface 620 Grip fixing part 621 Indicator 622 Grip end storage section 630 Battery guide wire 640 Guide wire for main body

Claims

1. The medical device itself, A first battery pack for supplying power, the first battery pack being detachably provided to the medical device body; a charging stand configured to be able to charge the first battery pack attached to the medical device body; Equipped with the first battery pack includes a power receiving coil for receiving a magnetic field generated by a power transmitting coil provided on a power transmitting side, and a secondary battery that is charged based on the power received by the power receiving coil, and is configured to be capable of being contactlessly charged even in a state where the first battery pack is detached from the medical device body; The charging stand includes: a body placement position determination means for assisting in determining an appropriate placement position for the medical device body when charging the first battery pack attached to the medical device body; a battery placement position display means for displaying a position of the first battery pack attached to the medical device body when the medical device body is placed based on the body placement position determination means. A medical device characterized by:

2. The charging stand is configured so that the first battery pack can be charged by itself by placing the first battery pack on the charging stand based on the battery placement position display means.

2. The medical device according to claim 1 .

3. The charging stand further includes the power transmitting coil arranged so as to coincide with the position of the power receiving coil of the first battery pack placed based on the battery placement position display means.

2. The medical device according to claim 1 .

4. The main body placement position determination means of the charging stand includes a main body fixing means for fixing at least a part of the medical device main body so that the positions of the power transmitting coil and the power receiving coil coincide with each other when the medical device main body is placed on the placement surface of the charging stand.

4. The medical device according to claim 3.

5. The main body fixing means of the charging stand has an indicator that shows the charging state of the first battery pack placed on the placement surface.

5. The medical device according to claim 4.

Images