Medical devices, medical instrument parts and medical instruments

Abstract

Provided are a medical device, a medical equipment component, and medical equipment with which it is possible to easily locate a prescribed part of medical equipment used embedded in the body.　The medical equipment 10 has: a main body unit 11; a chemical container 12 installed in the main body unit 11; and a notification unit 17 constituted from a plurality of light-emitting units 17a for emitting, when the relative positional relationship between a power transmission unit 22 and a power reception unit 16 reaches a prescribed state, light using electrical power received by the power reception unit 16 and thereby communicating a notification that the prescribed state has been reached; and a soft part 13 through which an injection needle is inserted. The plurality of light-emitting units 17a are positioned along the outer edge of the soft part 13. A first coil 15 is a coreless coil positioned so that the inside diameter is greater than the outside diameter of the chemical container 12.

Description

[Technical Field]

[0001] The present disclosure relates to a medical device, a medical device component, and a medical device that detects the position of a medical device that is used by being implanted in the body of a subject. [Background technology]

[0002] Implantable medical devices, in which a medical device is implanted in the body, are used to inject medicinal liquids into the body. These medical devices reduce the burden on patients who must frequently receive injections to inject medicinal liquids. The medical device has a soft portion in its main body through which an injection needle is inserted. This soft portion is made of, for example, silicone rubber. The medicinal liquid is then injected into the medicinal liquid container of the medical device through the soft portion. The medicinal liquid is then transported to the blood vessels through an infusion tube.

[0003] In such medical devices, the main body is embedded in the body, making it difficult to visually identify the position of the soft part from outside the body.

[0004] Therefore, it is conceivable to apply the technology proposed in Patent Document 1 to a medical instrument in which a soft section is formed by mixing a light-emitting material that emits near-infrared fluorescence when irradiated with near-infrared excitation light into a resin material. With such a medical instrument, it may be possible to visually identify the position of the soft section by converting the near-infrared fluorescence into visible light.

[0005] Furthermore, Patent Document 2 discloses a technology for an implantable medical device in which power is supplied to multiple light sources provided in the medical device by a non-contact power supply using a coil, causing the light sources mounted on the medical instrument to emit light. This technology may enable the location of the medical device implanted in the body to be identified using the light sources as markers. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 5958922 [Patent Document 2] U.S. Patent No. 7,191,011 Summary of the Invention [Problem to be solved by the invention]

[0007] However, if the soft part is formed by mixing an luminescent material into a resin material, the luminescent material will aggregate, and the amount of near-infrared fluorescence emitted by the luminescent material will decrease due to concentration quenching, which may result in making it difficult to identify the position of the soft part.

[0008] Although the medical device having a soft portion has been described here, the same problem also exists in implantable medical devices that do not have a soft portion.

[0009] Additionally, multiple light sources are required to accurately identify the position and inclination of medical devices implanted inside the body, and a certain level of light intensity is required for the light from the light sources implanted inside the body to reach the body surface, which means that a certain level of power supply is required.

[0010] One possible method to ensure sufficient power supply is to attach a coil with a core made of a magnetic material such as ferrite to each light source for efficient power supply. However, magnetic materials such as ferrite have the problem of easily causing artifacts in MRI images. On the other hand, if a ferrite core is not used, the power receiving unit including the coil will become larger, which will increase the thickness of the medical device, and the size of the medical device itself will inevitably increase.

[0011] The present disclosure has been made in consideration of the above, and aims to provide a medical device, a medical device component, and a medical device that can easily identify a specific location in a medical device that is implanted in the body and used. [Means for solving the problem]

[0012] The medical device of the present invention comprises a medical instrument that is implanted in the body and has a power transmission unit with a second coil that transmits power contactlessly, and a power receiving unit that includes a first coil that receives the power transmitted from the power transmission unit, the medical instrument having a housing, a container installed in the housing, an alarm unit composed of multiple light-emitting units that, when the relative positional relationship between the power transmission unit and the power receiving unit reaches a predetermined state as the power transmission unit moves, emits light using the power received by the power receiving unit to alert the user that the predetermined state has been reached, and a soft section through which an injection needle is inserted, the multiple light-emitting units being arranged along the outer edge of the soft section, and the first coil being a coreless coil whose inner diameter is larger than the outer diameter of the container.

[0013] In the medical device according to the present invention, the plurality of light-emitting units share the power-receiving unit, and the light-emitting units are electrically connected in parallel.

[0014] Furthermore, the medical device component of the present invention is a medical device component mounted on a medical device to be implanted in the body, the medical device component having a power receiving unit including a first coil that receives power transmitted contactlessly from a power transmitting unit of an extracorporeal unit, and an alarm unit composed of a plurality of light-emitting units that, when the relative positional relationship between the power transmitting unit and the power receiving unit reaches a predetermined state as the power transmitting unit moves, emits light using the power received by the power receiving unit to notify that the predetermined state has been reached, wherein the first coil is a coreless coil, the power receiving unit is installed on one plane of a substrate, and the alarm unit is installed on the other plane of the substrate.

[0015] In the medical instrument component according to the present invention, the other flat surface of the substrate, together with the notification portion, is covered with a resin material.

[0016] Furthermore, the medical device of the present invention is a medical device that is implanted in the body and used, and comprises: a power receiving unit including a first coil that receives power transmitted contactlessly from a power transmitting unit of an extracorporeal unit; an alarm unit composed of a plurality of light-emitting units that, when the relative positional relationship between the power transmitting unit and the power receiving unit reaches a predetermined state as the power transmitting unit moves, emits light using the power received by the power receiving unit to notify that the predetermined state has been reached; a housing; a container installed within the housing; and a soft part through which an injection needle is inserted, wherein the plurality of light-emitting units are arranged along the outer edge of the soft part, and the first coil is a coreless coil that is arranged so that its inner diameter is larger than the outer diameter of the container.

[0017] The medical device according to the present invention also includes a first exterior part in which the housing has the container, a second exterior part having an insertion part into which the first exterior part is inserted, and a medical device component arranged between the second exterior part and the first exterior part, with the power receiving unit installed on one plane and an alarm unit installed on the other plane located opposite the one plane.

[0018] In the medical device according to the present invention, the light emitting section emits light from the first exterior section toward the second exterior section.

[0019] In the medical instrument according to the present invention, the medical instrument component is installed in the first exterior portion. [Effects of the Invention]

[0020] According to the present disclosure, it is possible to easily check a predetermined location in a medical device that is to be implanted in the body when used. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1(a) is an exploded perspective view showing a first coil according to the first embodiment of the present invention and a plurality of light-emitting units mounted on a substrate, and FIG. 1(b) is a perspective view showing an example in which the number of light-emitting units mounted on a substrate according to the first embodiment of the present invention is different. [Figure 2] FIG. 2(a) is an exploded perspective view of the medical device according to the first embodiment of the present invention, and FIG. 2(b) is an overall perspective view of the medical device according to the first embodiment of the present invention. [Figure 3] FIG. 3 is a side cross-sectional view of the medical device according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a side cross-sectional view of a medical device according to a second embodiment of the present invention. [Figure 5] FIG. 5 is a side cross-sectional view of a medical device according to a third embodiment of the present invention. [Figure 6] FIG. 6 is a side cross-sectional view of a medical device according to a fourth embodiment of the present invention. [Figure 7] FIG. 7 is a side cross-sectional view of a medical device according to a fifth embodiment of the present invention. [Figure 8] FIG. 8(a) is a perspective view of a capacitor and a plurality of light-emitting units mounted on a substrate according to a sixth embodiment of the present invention, and FIG. 8(b) is a perspective view illustrating that the capacitor and a plurality of light-emitting units mounted on the substrate are molded with transparent resin. [Figure 9] FIG. 9 is a perspective view illustrating a capacitor according to a seventh embodiment of the present invention, in which a plurality of types of light-emitting units are mounted on a substrate. [Figure 10] FIG. 10 is a diagram illustrating another example of the extracorporeal unit. [Figure 11] FIG. 11 is a side cross-sectional view of a medical device according to an eighth embodiment of the present invention. [Figure 12] FIG. 12 is a side cross-sectional view of a medical device according to a ninth embodiment of the present invention. [Figure 13] FIG. 13 is a side cross-sectional view of a medical device according to a tenth embodiment of the present invention. [Figure 14] FIG. 14 is a side cross-sectional view of a medical device according to an eleventh embodiment of the present invention. [Figure 15] FIG. 15 is a side cross-sectional view of a medical device according to a twelfth embodiment of the present invention. [Figure 16] FIG. 16 is a side cross-sectional view of a medical device according to a thirteenth embodiment of the present invention. [Figure 17] Figure 17 shows the 14th embodiment of the present invention, in which Figure 17(a) is a side cross-sectional view of the medical device, and Figures 17(b), 17(c), and 17(d) are views of the surface of the main body portion facing the substrate as viewed from below. [Figure 18] FIG. 18 is a side cross-sectional view of a medical device according to a fifteenth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not limited to the following embodiments. Furthermore, the drawings referred to in the following description merely show a rough outline of the shape, size, and positional relationship to the extent that the contents of the present invention can be understood. In other words, the present invention is not limited to the shape, size, and positional relationship exemplified in each drawing. Furthermore, the following description will provide a detailed description of medical devices and medical devices that are implanted in the living body of a subject, including humans and animals.

[0023] First Embodiment 1 to 3 show a first embodiment of the present invention. In the first embodiment, a medical instrument is provided with a notification unit that notifies when a predetermined state is reached.

[0024] [Configuration of medical device] As shown in FIG. 3, the medical device 1 includes a medical instrument 10 that is implanted in the living body of a subject and used, and an extracorporeal unit 20.

[0025] [Configuration of medical device] The medical device 10 shown in FIGS. 2 and 3 is, for example, what is called a subcutaneously implantable port (CV port).

[0026] Main body 11 is a housing made of, for example, epoxy resin. Main body 11 includes: a liquid medicine container 12; a soft portion 13; an infusion tube 14; a power receiving portion 16 including a first coil 15; and an alarm portion 17 that uses power received by power receiving portion 16 to notify that a predetermined relative positional relationship between first coil 15 and a power transmitting portion (described later) has been achieved. Main body 11 may also be formed with an insertion portion 11a into which power receiving portion 16 and alarm portion 17 are inserted. Main body 11, liquid medicine container 12, and soft portion 13 are welded together to form an airtight space in insertion portion 11a.

[0027] The liquid medicine container 12 is a chamber for temporarily storing the liquid medicine. The liquid medicine container 12 has a circular opening 12a on the outside of the body and an infusion tube 14 for connecting a catheter (not shown). Furthermore, a plurality of protrusions 12b are provided at intervals in the circumferential direction on the upper surface of the liquid medicine container 12 to engage with notches provided in a substrate (described later). Furthermore, a partition wall 12c is provided on the upper surface of the liquid medicine container 12 to separate the soft portion 13 from the substrate (described later).

[0028] The soft portion 13 is what is called a septum. The soft portion 13 closes the opening 12a of the drug solution container 12. The soft portion 13 is a soft lid (silicone diaphragm) made of, for example, silicone rubber, and is provided in a manner that it is exposed from the main body 11. The soft portion 13 is cylindrical. The soft portion 13 is a portion through which an injection needle for drug solution injection (infusion) can be inserted from the body surface of the subject after the main body 11 is implanted in the living body.

[0029] One end of the infusion tube 14 is connected to the liquid medicine container 12, and the other end is connected to a catheter (not shown), which is further inserted into a blood vessel (not shown) or the like. The infusion tube 14 transports the liquid medicine temporarily stored in the liquid medicine container 12.

[0030] First coil 15 does not have a core such as ferrite (magnetic material) and is formed by winding an electric wire multiple times in an annular shape. First coil 15 is formed so that its inner diameter is larger than the outer diameter of drug solution container 12.

[0031] The power receiving unit 16 includes a first coil 15 and a power receiving circuit. The first coil 15 receives power transmitted from the power transmitting unit 22. A capacitor 17c may be used in the power receiving circuit. The power receiving circuit receives the power (induced electromotive force) generated in the first coil 15 and supplies the received power to a light-emitting element (described later) of the alarm unit 17. The power receiving unit 16 and the alarm unit 17 may be provided on the same substrate. The power receiving unit 16 may be attached to one surface of a ring-shaped substrate 18 as shown in FIG. 1(a), or some components, such as the capacitor 17c, may be provided on the opposite surface. Alternatively, a circuit pattern may be formed integrally into a coil shape by etching, as in a printed circuit board (PCB). In this case, the risk of disconnection during handling of the components is further reduced, and the manufacturing costs during mass production can also be reduced. Furthermore, a plurality of notches 18a, into which a plurality of protrusions 12b of chemical solution container 12 engage, are provided at intervals in the circumferential direction on the outer periphery of substrate 18.

[0032] The notification unit 17 is made up of a plurality of light-emitting units 17a each made up of an LED chip. The light-emitting units 17a share the power receiving unit 16, and the light-emitting units 17a are electrically connected in parallel.

[0033] The light-emitting units 17a are disposed, for example, on the other plane of the substrate 18 as shown in FIG. 1(a), so as to be spaced apart at predetermined intervals along the outer edge of the flexible portion 13. Specifically, the light-emitting units 17a are disposed at three locations along the outer edge of the flexible portion 13 at 120-degree intervals around the center of the first coil 15. The light-emitting units 17a emit light in response to the power received by the power receiving unit 16. It is preferable that the light-emitting units 17a use LEDs with high directionality. More specifically, it is preferable that the light-emitting units 17a use red LEDs that emit light in the red wavelength band in order to penetrate the living body of a subject or the like. The number and arrangement of the light-emitting units 17a can be changed as appropriate. For example, as shown in FIG. 1(b), the light-emitting units 17a may be disposed at six locations along the outer edge of the flexible portion 13 at equal intervals around the center of the first coil 15 in a circular pattern.

[0034] Here, when the exterior part having the liquid medicine container 12 is defined as the first exterior part and the main body part 11 having the insertion part 11a into which the first exterior part is inserted is defined as the second exterior part, the medical device part is arranged between the first exterior part and the second exterior part, and has a power receiving part 16 installed on one surface of the substrate 18 and an alarm part installed on the other surface of the substrate.

[0035] [Configuration of the extracorporeal unit] As shown in Fig. 3, the external unit 20 includes a housing 21 and a power transmission unit 22. The power transmission unit 22 has a second coil 22a. The housing 21 and the power transmission unit 22 are connected by wire or wirelessly. In the case of a wired connection, a cable of a predetermined length may be used to connect the two units, and power may be supplied from the housing 21 to the power transmission unit 22. In the case of a wireless connection, power may be supplied from the housing 21 to the power transmission unit 22 by, for example, contactless power supply.

[0036] As shown in FIGS. 10(a) and 10(b), the second coil 22a has an annular shape, generates a magnetic flux in response to power input from a power supply (not shown), and transmits power to the first coil 15. The power supplied by the second coil 22a is sufficient to illuminate the multiple light-emitting elements 17a even when the second coil 22a and the first coil 15 are separated by a predetermined distance, e.g., several tens of centimeters. As shown in FIGS. 10(c) and 10(d), the second coil may form a recess. In this case, the recess may be larger than the soft portion 13, as long as it has enough space to allow for puncture. This facilitates removal of the second coil after power is supplied.

[0037] The medical device 1 configured as described above receives power from the extracorporeal unit 20, and indicates the location where the medical device 10 is implanted by emitting light from the multiple light-emitting sections 17a in the medical device 10. This allows the user to intuitively grasp the position and center of the soft section 13 in the medical device 10 from outside the subject.

[0038] According to the first embodiment, the position of the soft portion 13 is indicated by the multiple light-emitting portions 17a in the medical instrument 10 emitting light, so that the position of the soft portion 13 in the medical instrument 10 can be intuitively grasped from outside the subject.

[0039] As described above, the medical device 1 of this embodiment includes a power transmission unit 22 having a second coil 22a that transmits power contactlessly, and a power receiving unit 16 including a first coil 15 that receives the power transmitted from the power transmission unit 22, and a medical device 10 that is implanted in the body for use. The medical device 10 includes a main body 11, a medicinal solution container 12 installed in the main body 11, an alarm unit 17 composed of multiple light-emitting units 17a that, when the relative positional relationship between the power transmission unit 22 and the power receiving unit 16 reaches a predetermined state as the power transmission unit 22 moves, emits light using the power received by the power receiving unit 16 to indicate that the predetermined state has been reached, and a soft portion 13 through which an injection needle is inserted, and the multiple light-emitting units 17a are arranged along the outer edge of the soft portion 13, and the first coil 15 is a coreless coil that is arranged so that its inner diameter is larger than the outer diameter of the medicinal solution container 12.

[0040] Preferably, the plurality of light-emitting units 17a share the power receiving unit 16, and the light-emitting units 17a are electrically connected in parallel.

[0041] Furthermore, according to the medical device component of the present invention, there is provided a medical device component to be mounted on a medical device 10 to be used by being implanted in the body, the medical device component comprising: a power receiving unit 16 including a first coil 15 that receives power transmitted contactlessly from a power transmitting unit 22 of an extracorporeal unit 20; and an alarm unit 17 composed of a plurality of light-emitting units 17a that, when the relative positional relationship between the power transmitting unit 22 and the power receiving unit 16 reaches a predetermined state as the power transmitting unit 22 moves, emits light using the power received by the power receiving unit 16 to notify that the predetermined state has been reached. In this medical device component, the first coil 15 is a coreless coil, and the power receiving unit 16 and the alarm unit 17 may be mounted on the same substrate, and it is preferable that the power receiving unit 16 is mounted on one plane of the substrate 18 and the alarm unit 17 is mounted on the other plane of the substrate 18.

[0042] Furthermore, according to a medical device 10 of the present invention, the medical device 10 is implanted in the body and includes a power receiving unit 16 including a first coil 15 that receives power transmitted contactlessly from a power transmitting unit 22 of an extracorporeal unit 20, an indicator 17 including a plurality of light-emitting units 17a that, when the relative positional relationship between the power transmitting unit 22 and the power receiving unit 16 reaches a predetermined state as the power transmitting unit 22 moves, emits light using the power received by the power receiving unit 16 to indicate that the predetermined state has been reached, a main body 11, a liquid medicine container 12 installed within the main body 11, and a soft portion 13 through which an injection needle is inserted, the plurality of light-emitting units 17a being arranged along the outer edge of the soft portion 13, and the first coil 15 being a coreless coil whose inner diameter is larger than the outer diameter of the liquid medicine container 12. The inner diameter of the first coil is preferably 15 mm or more and its outer diameter is preferably 21 mm or less, although this depends on the size of the medical device. Such a diameter makes it possible to ensure a predetermined amount of power supply and to make the medical device thinner.

[0043] Furthermore, the medical device 10 of the present invention preferably comprises a first exterior part having a drug solution container 12, a second exterior part having an insertion part 11a into which the first exterior part is inserted, and a medical device component arranged between the second exterior part and the first exterior part, with a power receiving part 16 installed on one surface of a substrate 18 and an alarm part 17 installed on the other surface of the substrate 18. Furthermore, according to the medical device 10 of the present invention, the exterior of the medical device may be composed of two exterior parts that can be engaged with each other. Furthermore, an insertion part 11a in which the notification part 17 and the first coil 15 can be installed may be formed between the two engageable exterior parts, and it is more preferable that the insertion part 11a is provided in one exterior part where the soft part 13 is exposed, and a fixing part for the soft part 13, the notification part 17, and the first coil 15 is provided in the other exterior part. With this configuration, fixing of the soft part 13, the notification part 17, and the first coil 15 and fitting and welding of the exterior parts can be performed simultaneously. More specifically, it is preferable that the medical device component comprises a first exterior part having a drug solution container 12, a second exterior part exposing the soft part 13, a medical device component arranged between the second exterior part and the first exterior part, in which a power receiving part 16 including a first coil 15 is installed on one surface of a substrate 18 in the first exterior part and an alarm part 17 is installed on the other surface of the substrate 18, and a support part that supports at least a portion of each of the soft part 13 and the power receiving part 16 with the first exterior part. Furthermore, a fitting portion may be provided for fitting the substrate of the medical device component, in which the power receiving unit 16 including the first coil 15 is installed on one surface of the substrate 18 and the notification unit 17 is installed on the other surface of the substrate 18, with the support portion of the first exterior part. More specifically, examples include a protrusion installed on the support portion and a groove formed in the substrate.

[0044] Furthermore, according to the medical device 10 of the present invention, it is preferable that the light emitting section 17a emits light from the first exterior section including the drug solution container 12 toward the second exterior section where the soft section 13 is provided.

[0045] Second Embodiment 4 shows a second embodiment of the present invention. Note that the same components as those in the first embodiment are given the same reference numerals and detailed explanations thereof will be omitted.

[0046] The medical device 10 of the second embodiment includes a light guide plate 17b on the outer periphery of the light emitting portion 17a. The light guide plate 17b is installed perpendicular to the plane of the substrate 18 on which the light emitting portion 17a is provided. The light guide plate 17b may be replaced with a light shielding plate. A light shielding plate can further reduce light diffusion and improve visibility under certain environments.

[0047] As a result, the light emitted from the light emitting portion 17a is directed toward the surface of the main body portion 11 on which the soft portion 13 is located without being diffused, improving visibility for the user.

[0048] In this case, a convex portion or a concave portion to which light guide plate 17b engages may be formed on the surface of main body 11 facing light emitting portion 17a. In this case, liquid medicine container 12 is positioned in the rotational direction, and it is possible to prevent liquid medicine container 12 from being misaligned with respect to main body 11 in the rotational direction.

[0049] <Third embodiment> 5 shows a third embodiment of the present invention. Note that the same components as those in the first and second embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0050] The medical device 10 of the third embodiment is installed so that the light guide plate 17b provided on the outer periphery of one light emitting portion 17a and the light guide plate 17b provided on the outer periphery of another light emitting portion 17a face in different directions.

[0051] As a result, the light emitted from the light emitting unit 17a is centered around the soft portion 13, and interference of light emitted from the plurality of light emitting units 17a can be suppressed, thereby improving visibility for the user.

[0052] <Fourth embodiment> 6 shows a fourth embodiment of the present invention. Note that the same components as those in the first to third embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0053] The medical device 10 of the fourth embodiment includes a light guide plate 17b provided on the outer periphery of a light emitting portion 17a, and a light collecting portion 17b1 having a curved surface facing the light emitting portion 17a.

[0054] As a result, the light emitted from the light emitting portion 17a is directed toward the surface of the main body 11 where the soft portion 13 is located without being diffused, improving the user's visibility. The direction of the light guide plate 17b can be determined in the same way as in the second or third embodiment.

[0055] Fifth Embodiment 7 shows a fifth embodiment of the present invention. Note that the same components as those in the first to fourth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0056] In the medical device 10 of the fifth embodiment, the main body 11 is formed with a light collecting section 11b having a curved surface facing the light emitting section 17a.

[0057] As a result, the light emitted from the light emitting portion 17a is guided toward the surface of the main body 11 on which the soft portion 13 is located without being diffused, improving visibility for the user.

[0058] Incidentally, a light guide plate 17b may be provided around the outer periphery of the light emitting portion 17a, as in the second or third embodiment.

[0059] Sixth Embodiment 8 shows a sixth embodiment of the present invention. Note that the same components as those in the first to fifth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0060] In the medical device 10 of the sixth embodiment, a power receiving unit 16 is provided on one plane of a substrate 18, and a plurality of light-emitting units 17a serving as a notification unit 17 are provided on the other plane of the substrate 18. In this case, a capacitor 17c may be provided on the same plane as the plurality of light-emitting units 17a. Furthermore, the other plane of the substrate 18 has the plurality of light-emitting units 17a, capacitor 17c, and wiring that are provided covered with a transparent resin material 17d.

[0061] As a result, the light emitting portion 17a, the capacitor 17c, and the wiring, which are arranged on the plane of the substrate 18, are covered with the support material, so that damage to the components when assembling the medical device 10 can be prevented.

[0062] Seventh Embodiment 9 shows a seventh embodiment of the present invention. Note that the same components as those in the first to sixth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0063] In the medical device 10 of the seventh embodiment, a power receiving unit 16 is provided on one flat surface of a substrate 18, and a capacitor 17c is provided on the other flat surface of the substrate 18 together with a plurality of light-emitting units 17a as a notification unit 17. The plurality of light-emitting units 17a provided on the other flat surface of the substrate 18 include a plurality of first light-emitting units 17a1 that emit light in a direction perpendicular to the plane of the substrate 18, and a plurality of second light-emitting units 17a2 that emit light in the outer circumferential direction of the substrate 18.

[0064] This allows the single first coil 15 to supply power to a plurality of first light-emitting parts 17a1 and a plurality of second light-emitting parts 17a2 having different uses.

[0065] Eighth Embodiment 11 shows an eighth embodiment of the present invention. Note that the same components as those in the first to seventh embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0066] As shown in FIG. 11, in a medical device 10 of the eighth embodiment, a drug solution container 12 and a partition wall 12c are integrally formed.

[0067] This prevents a gap from occurring between the liquid medicine container 12 and the partition wall 12c, thereby improving the pressure resistance of the medical device 10. Furthermore, because the liquid medicine container 12 and the partition wall 12c are formed as a single component, the number of assembly steps can be reduced.

[0068] Ninth Embodiment 12 shows a ninth embodiment of the present invention. Note that the same components as those in the first to eighth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0069] 12, in the medical device 10 of the ninth embodiment, the main body 11 and the partition wall 12c are integrally formed. The lower end of the partition wall 12c abuts against the soft portion 13 over the circumferential direction.

[0070] This increases the contact area between the main body portion 11 and the soft portion 13, improving the pressure resistance of the medical device 10. Furthermore, since the main body portion 11 and the partition wall 12c are formed into a single component, the number of assembly steps can be reduced.

[0071] Tenth Embodiment 13 shows a tenth embodiment of the present invention. Note that the same components as those in the first to ninth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0072] The medical device 10 of the tenth embodiment does not have a partition wall 12c. A notch 12d is formed in the circumferential direction on the outer periphery of the upper side of the drug solution container 12 of the tenth embodiment. A first coil 15, a plurality of light-emitting units 17a, and a substrate 18 are disposed in the notch 12d. When the main body 11 and the drug solution container 12 are assembled together, the first coil 15, the plurality of light-emitting units 17a, and the substrate 18 disposed in the notch 12d are housed in a space surrounded by the main body 11 and the drug solution container 12.

[0073] Thus, according to the medical device of this embodiment, when the exterior part having the drug solution container 12 is the first exterior part and the main body part 11 having the insertion part 11a into which the first exterior part is inserted is the second exterior part, the first coil 15, the multiple light-emitting parts 17a and the substrate 18 are installed in the first exterior part.

[0074] This makes it possible to prevent the infiltration of chemicals into the first coil 15, the multiple light-emitting sections 17a, and the substrate 18 with a simple configuration without requiring a partition wall 12c, thereby reducing manufacturing costs.

[0075] In the tenth embodiment, the first coil 15, the plurality of light-emitting units 17a, and the substrate 18 are disposed in the notch 12d formed in the circumferential direction on the outer periphery of the upper side of the liquid medicine container 10, but this is not limiting. The first coil 15, the plurality of light-emitting units 17a, and the substrate 18 may be disposed in a groove formed in the circumferential direction on the upper side of the liquid medicine container 10, for example.

[0076] Eleventh Embodiment 14 shows an eleventh embodiment of the present invention. Note that the same components as those in the first to tenth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0077] The medical device 10 of the eleventh embodiment does not have a partition wall 12c. A groove 12e extending circumferentially is formed on the upper surface of the drug solution container 12 of the eleventh embodiment. A first coil 15, a plurality of light-emitting units 17a, and a substrate 18 are disposed in the groove 12e. When the main body 11 and the drug solution container 12 are assembled together, the first coil 15, the plurality of light-emitting units 17a, and the substrate 18 disposed in the groove 12e are accommodated in a space surrounded by the main body 11 and the drug solution container 12.

[0078] This makes it possible to prevent the infiltration of chemicals into the first coil 15, the multiple light-emitting sections 17a, and the substrate 18 with a simple configuration without requiring a partition wall 12c, thereby reducing manufacturing costs.

[0079] <Twelfth embodiment> 15 shows a twelfth embodiment of the present invention. Note that the same components as those in the first to eleventh embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0080] 15, in medical device 10 of the twelfth embodiment, drug solution container 12 and partition wall 12c are integrally formed. A fitting groove 11c into which the upper end side of partition wall 12c fits is formed circumferentially on the lower surface of main body 11. When main body 11 and drug solution container 12 are assembled together, the upper end side of partition wall 12c fits into fitting groove 11c over the circumferential direction.

[0081] This closes the gap between medicinal solution container 12 and partition wall 12c and the gap between main body 11 and partition wall 12c, thereby further improving the pressure resistance of medical device 10. In addition, since medicinal solution container 12 and partition wall 12c are formed as a single component, the number of assembly steps can be reduced.

[0082] <Thirteenth embodiment> 16 shows a thirteenth embodiment of the present invention. Note that the same components as those in the first to twelfth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0083] 16, the medical device 10 of the thirteenth embodiment has a partition wall 12c, and a protruding portion 12f that protrudes radially outward in the circumferential direction is formed on the lower side of the side surface of the liquid medicine container 12. Furthermore, steps are formed on the inside of the main body 11 so that the upper side of the liquid medicine container 12 and the protruding portion 12f can fit into each other.

[0084] This makes it possible to increase the contact area between the main body 11 and the drug solution container 12, thereby further improving the pressure resistance of the medical device 10.

[0085] <Fourteenth embodiment> 17 shows a fourteenth embodiment of the present invention. Note that the same components as those in the first to thirteenth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0086] As shown in Figure 17(a), the medical device 10 of the 14th embodiment has a light-collecting section 11d1 formed on the surface 11d of the main body 11 facing the substrate 18, which protrudes downward and is used to collect light emitted from the light-emitting section 17a provided on the substrate 18.

[0087] As a result, the light emitted from the light-emitting unit 17a is collected by the light-collecting unit 11d1, thereby making it possible to improve the visibility of the subject from outside without having to adjust the amount of light emitted by the light-emitting unit 17a.

[0088] Here, FIGS. 17(b), 17(c), and 17(d) are views of the surface 11d of the main body 11 facing the substrate 18, as viewed from below, and relate to the light collecting portion 11d1.

[0089] 17(b), the surface 11d is formed as a flat surface without the light collecting portion 11d1. In this case, there is no effect of collecting the light emitted from the light emitting portion 17a, but the simple structure is advantageous in terms of manufacturing costs.

[0090] 17(c) shows a surface 11d having a light collecting portion 11d11 formed only at a position facing the light emitting portion 17a. In this case, the light emitted from the light emitting portion 17a is highly collected, which makes it possible to further improve the visibility of the subject from outside.

[0091] 17(d) shows a surface 11d having a light collecting portion 11d12 formed in the circumferential direction at a position facing the light emitting portion 17a in the radial direction of the main body portion 11. In this case, there is no need to circumferentially align the light emitting portion 17a and the light collecting portion 11d12, which makes assembly easier and reduces manufacturing costs.

[0092] <Fifteenth embodiment> 18 shows a fifteenth embodiment of the present invention. Note that the same components as those in the first to fourteenth embodiments are given the same reference numerals and detailed description thereof will be omitted.

[0093] In the medical device 10 of the fifteenth embodiment, the upper surface of the substrate 18 together with the light-emitting portion 17a is covered with a transparent resin material 17d for the purpose of protecting the wiring and components provided on the substrate 18. The resin material 17d is formed to protrude from a portion located above the light-emitting portion 17a and has a light-collecting portion 17d1 for collecting light emitted from the light-emitting portion 17a.

[0094] As described above, according to the medical instrument part of this embodiment, the upper surface of the substrate 18, together with the light emitting portion 17a, is covered with the resin material 17d.

[0095] This makes it possible to form the light collecting portion 17d1 at the same time as covering the upper surface of the substrate 18 with the resin material 17d, eliminating the need to form a separate light collecting portion, and thus reducing manufacturing costs.

[0096] Although some of the embodiments of the present application have been described in detail above with reference to the drawings, these are merely examples, and the present invention can be implemented in other forms that have undergone various modifications and improvements based on the knowledge of those skilled in the art, including the aspects described in the disclosure of the present invention. [Explanation of symbols]

[0097] 1 Medical devices 10 Medical equipment 11 Main body 11a Insertion part 11b Light collecting part 12. Chemical container 13 Soft part 15 First coil 16 Power receiving unit 17. Information Department 17a Light-emitting part 18 PCB 20 Extracorporeal Unit 22 Power Transmission Section 22a Second coil

Claims

1. a power transmission unit having a second coil that transmits power in a contactless manner; a medical device that is implanted in a body and used, the medical device having a power receiving unit including a first coil that receives power transmitted from the power transmitting unit, The medical device comprises: The housing and a container disposed within the housing; a notification unit configured with a plurality of light-emitting units that, when a relative positional relationship between the power transmitting unit and the power receiving unit reaches a predetermined state as the power transmitting unit moves, emits light using the power received by the power receiving unit to notify that the predetermined state has been reached; a soft portion through which an injection needle is inserted; the plurality of light-emitting sections are arranged along an outer edge of the soft section, the first coil is a coreless coil arranged so that an inner diameter thereof is larger than an outer diameter of the container, the power receiving unit is installed on one surface of the substrate, The notification unit is installed on the other plane of the substrate. Medical device.

2. The plurality of light-emitting units share the power receiving unit, and the light-emitting units are electrically connected in parallel. The medical device of claim 1 .

3. A medical device component to be mounted on a medical device that is used by being implanted inside the body, the medical device component having: a power receiving unit including a first coil that receives power transmitted in a non-contact manner from a power transmitting unit of an external unit; and a notification unit that is composed of a plurality of light emitting units that, when a relative positional relationship between the power transmitting unit and the power receiving unit reaches a predetermined state as the power transmitting unit moves, emits light using the power received by the power receiving unit to notify that the predetermined state has been reached, the first coil is a coreless coil, the power receiving unit is installed on one surface of the substrate, The notification unit is installed on the other plane of the substrate. Medical equipment parts.

4. The other flat surface of the substrate is covered with a resin material together with the notification unit. The medical device component of claim 3 .

5. A medical device that is implanted in the body and used, a power receiving unit including a first coil that receives power transmitted contactlessly from a power transmitting unit of the external unit; a notification unit configured with a plurality of light-emitting units that, when a relative positional relationship between the power transmitting unit and the power receiving unit reaches a predetermined state as the power transmitting unit moves, emits light using the power received by the power receiving unit to notify that the predetermined state has been reached; The housing and a container disposed within the housing; a soft portion through which an injection needle is inserted; a first exterior part including the container; a second exterior part having an insertion part into which the first exterior part is inserted; a medical instrument component disposed between the second exterior part and the first exterior part, the power receiving unit being provided on one surface of a substrate, and a notification unit being provided on the other surface of the substrate; the plurality of light-emitting sections are arranged along an outer edge of the soft section, The first coil is a coreless coil arranged so that the inner diameter is larger than the outer diameter of the container. Medical equipment.

6. The light emitting unit emits light from the first exterior unit toward the second exterior unit. The medical device according to claim 5.

7. The medical device component is mounted on the first exterior portion. The medical device according to claim 5 or 6.

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