Implantable drug delivery device with near field communication function

Abstract

The utility model relates to the technical field of implantable drug delivery devices, and discloses an implantable drug delivery device with a near field communication function, which comprises a shell, a drug delivery cavity and an isolation frame, the drug delivery cavity and the isolation frame are arranged in the shell, the drug delivery cavity is positioned above the isolation frame, a charging coil is printed on the outer wall of the drug delivery cavity, and the charging coil is positioned above the isolation frame. An NFC antenna is arranged at the lower end of the isolation frame, a circuit board is arranged on the isolation frame, and the charging coil and the NFC antenna are electrically connected with the circuit board; the implantable drug delivery device with the near field communication function solves the problems that an existing implantable drug delivery device is large in size and cannot be accurately aligned with external read-write equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of implantable drug delivery devices, in particular to an implantable drug delivery device with a near field communication function. Background Art

[0002] Traditional implantable drug delivery tools are only used as long-term infusion tools and have no other functions. In recent years, NFC (near field communication) technology has been widely used in various fields, including the medical industry, and NFC+WPC technology can achieve wireless communication and wireless energy transmission, which greatly improves the quality of life and treatment effect of patients.

[0003] An implantable drug delivery tool is a medical device implanted in the human body. The smaller and thinner the structure size, the better. As one of the important components of smart drug delivery tools, the antenna must be miniaturized while ensuring performance meets standards. NFC transmits electromagnetic signals and energy through near-field coupling. The existing solution is generally to set the wireless charging coil and NFC antenna side by side, or nest them in a plane. However, this design method will take up a large area and is not suitable for use in implantable medical devices. In addition, the wireless charging coil and NFC antenna set side by side will also interfere with each other during operation, making it impossible for external reading and writing devices to be accurately aligned. Utility Model Content

[0004] The purpose of the utility model is to provide an implantable drug delivery device with a near field communication function, so as to solve at least one of the above problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An implantable drug delivery device with near field communication function comprises a shell, a drug delivery cavity and an isolation frame, wherein the drug delivery cavity and the isolation frame are arranged in the shell, the drug delivery cavity is located above the isolation frame, a charging coil is printed on the outer wall of the drug delivery cavity, an NFC antenna is arranged at the lower end of the isolation frame, a circuit board is arranged on the isolation frame, and the charging coil and the NFC antenna are both electrically connected to the circuit board.

[0007] In this technical solution, since the drug delivery cavity and the isolation frame are arranged in the shell, the drug delivery cavity is located above the isolation frame, that is, the isolation frame is placed in the space between the lower end of the drug delivery cavity and the shell, the charging coil is printed on the outer wall of the drug delivery cavity, and the lower end of the isolation frame is provided with an NFC antenna. The charging coil and the NFC antenna are respectively arranged on different planes, which will not occupy a large area and affect the size of the product; the charging coil printed on the outer wall of the drug delivery cavity is closer to the skin, which can reduce charging loss. In addition, the isolation frame can also isolate the NFC antenna and the charging coil to avoid the problem of mutual interference between the NFC antenna and the charging coil during operation, and at the same time facilitate the precise alignment of the external reading and writing equipment with the drug delivery device to read relevant information. The overall structure of the utility model is simple, the design is flexible, and it can make better use of space and reduce the difficulty of assembly.

[0008] Furthermore, in order to facilitate the installation of the circuit board, a mounting groove is provided at the lower bottom of the isolation frame, and the circuit board is embedded in the mounting groove.

[0009] Furthermore, in order to rationally utilize space, facilitate the installation of the circuit board and the NFC antenna on the isolation frame, and facilitate the electrical connection between the charging coil and the NFC antenna and the circuit board, the lower bottom of the isolation frame is located on the outer circumference of the mounting groove and is provided with a recessed platform, the NFC antenna is arranged at the recessed platform, the electrode of the charging coil is located at the bottom of the dosing cavity, and the electrodes of the charging coil and the NFC antenna are connected to the circuit board through spring clips.

[0010] Furthermore, in order to enable the NFC antenna to match the shape of the isolation frame, the NFC antenna is a planar spiral NFC antenna.

[0011] Furthermore, the charging coil is directly printed on the outer wall of the drug delivery cavity through the PDS process.

[0012] The beneficial effects of the utility model are as follows: in this technical solution, since the drug delivery cavity and the isolation frame are arranged in the shell, the drug delivery cavity is located above the isolation frame, that is, the isolation frame is placed in the space between the lower end of the drug delivery cavity and the shell, and a charging coil is printed on the outer wall of the drug delivery cavity, and an NFC antenna is arranged at the lower end of the isolation frame. The charging coil and the NFC antenna are respectively arranged on different planes, which will not occupy a large area and affect the size of the product; the charging coil printed on the outer wall of the drug delivery cavity is closer to the skin, which can reduce charging loss. In addition, the isolation frame can also isolate the NFC antenna and the charging coil to avoid the problem of mutual interference between the NFC antenna and the charging coil during operation, and at the same time facilitate the precise alignment of the external reading and writing equipment with the drug delivery device to read relevant information. The utility model has a simple overall structure and flexible design, can make better use of space, and reduces the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model in a partially cut-away state;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure in which a charging coil is printed on the outer wall of the drug delivery cavity in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the lower end surface of the isolation frame in the utility model.

[0017] In the figure: housing 1; drug delivery cavity 2; isolation frame 3; charging coil 4; NFC antenna 5; circuit board 6; mounting groove 7; recessed platform 8; and accommodating area 9. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0019] Embodiment 1:

[0020] like Figure 1-Figure 4 As shown, this embodiment provides an implantable drug delivery device with a near field communication function, comprising a housing 1, a drug delivery cavity 2 and an isolation frame 3, wherein the drug delivery cavity 2 and the isolation frame 3 are arranged in the housing 1, and the drug delivery cavity 2 is located above the isolation frame 3, as shown in FIG. Figure 3 As shown, a charging coil 4 is printed on the outer wall of the drug delivery cavity 2. The charging coil 4 is directly printed on the outer wall of the drug delivery cavity 2 by the PDS process. The charging coil 4 is a cylindrical (including conical) spiral coil structure, as shown in FIG. Figure 4 As shown, an NFC antenna 5 is provided at the lower end of the isolation frame 3 , a circuit board 6 is provided on the isolation frame 3 , and the charging coil 4 and the NFC antenna 5 are both electrically connected to the circuit board 6 .

[0021] In this technical solution, since the drug delivery cavity 2 and the isolation frame 3 are arranged in the shell 1, the drug delivery cavity 2 is located above the isolation frame 3, that is, the isolation frame 3 is placed in the space between the lower end of the drug delivery cavity 2 and the shell 1, the charging coil 4 is printed on the outer wall of the drug delivery cavity 2, and the lower end of the isolation frame 3 is provided with an NFC antenna 5. The charging coil 4 and the NFC antenna 5 are respectively arranged on different planes, which will not occupy a large area and affect the size of the product; the charging coil 4 printed on the outer wall of the drug delivery cavity 2 is closer to the skin, which can reduce the charging loss. In addition, the isolation frame 3 can also isolate the NFC antenna 5 and the charging coil 4 to avoid the problem of mutual interference between the NFC antenna 5 and the charging coil 4 during operation, and at the same time facilitate the precise alignment of the external reading and writing equipment with the drug delivery device to read relevant information. The overall structure of the utility model is simple, the design is flexible, and it can make better use of space and reduce the difficulty of assembly.

[0022] Embodiment 2:

[0023] This embodiment is optimized based on the above-mentioned embodiment 1.

[0024] In order to facilitate the installation of the circuit board 6 , a mounting groove 7 is provided at the bottom of the isolation frame 3 , and the circuit board 6 is embedded in the mounting groove 7 .

[0025] Embodiment 3:

[0026] This embodiment is optimized based on the above-mentioned embodiment 1.

[0027] In order to make rational use of space, facilitate the installation of the circuit board 6 and the NFC antenna 5 on the isolation frame 3, and facilitate the electrical connection between the charging coil 4 and the NFC antenna 5 and the circuit board 6, the lower bottom of the isolation frame 3 is located on the outer side of the mounting groove 7 and a recessed platform 8 is provided in the circumferential direction. The NFC antenna 5 is arranged at the recessed platform 8, and the electrodes (contact A and contact B) of the charging coil 4 are located at the bottom of the dosing cavity 2. The two electrodes (contact A and contact B) of the charging coil 4 and the two electrodes (contact C and contact D) of the NFC antenna 5 are connected to the circuit board 6 through spring clips.

[0028] Embodiment 4:

[0029] This embodiment is optimized based on the above-mentioned embodiment 1.

[0030] In order to make the NFC antenna 5 match the shape of the isolation frame 3, the NFC antenna 5 is a planar spiral NFC antenna.

[0031] Specific assembly steps:

[0032] According to the designed shape of the charging coil 4 , it is directly printed on the outer wall of the medication cavity 2 through the PDS process, and the electrodes (contact A and contact B) of the charging coil 4 are printed at the bottom of the medication cavity 2 .

[0033] The circuit board 6 is installed in the position of the installation groove 7 reserved on the isolation frame 3.

[0034] The NFC antenna 5 is mounted on the concave platform 8 at the lower end of the isolation frame 3, and it is ensured that the electrodes (contact C and contact D) of the NFC antenna 5 are in contact with the springs of the circuit board 6 to realize the antenna function.

[0035] The assembled isolation frame 3 is installed in the housing 1 so as to be located in the accommodation area 9 between the medication cavity 2 and the housing 1 .

[0036] The dosing cavity 2 is mounted on the isolation frame 3, and the electrodes (contact A and contact B) of the charging coil 4 at the bottom of the dosing cavity 2 are ensured to contact the springs of the circuit board 6 to realize the charging function. Positioning silk screens can be added during the entire assembly process to ensure that the assembly is in a reliable position.

[0037] In summary, since the NFC antenna 5 and the charging coil 4 in this technical solution are not in the same plane and have no overlapping area, they can avoid mutual interference, making it convenient for the external smart device to align with the drug delivery device. This solution can reduce costs, improve yield, increase production capacity, and make the internal space structure stacking of the device more advantageous.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An implantable drug delivery device with near field communication function, characterized in that: It includes a shell, a dosing cavity and an isolation frame, wherein the dosing cavity and the isolation frame are arranged in the shell, the dosing cavity is located above the isolation frame, a charging coil is printed on the outer wall of the dosing cavity, an NFC antenna is arranged at the lower end of the isolation frame, a circuit board is arranged on the isolation frame, and the charging coil and the NFC antenna are both electrically connected to the circuit board.

2. The implantable drug delivery device with near field communication function according to claim 1, characterized in that: The lower bottom of the isolation frame is provided with a mounting groove, and the circuit board is embedded in the mounting groove.

3. The implantable drug delivery device with near field communication function according to claim 1, characterized in that: The lower bottom of the isolation frame is located on the outer side of the mounting groove and is circumferentially provided with a concave platform, the NFC antenna is arranged at the concave platform, the electrode of the charging coil is located at the bottom of the drug delivery cavity, and the electrodes of the charging coil and the NFC antenna are connected to the circuit board through spring clips.

4. The implantable drug delivery device with near field communication function according to claim 1, characterized in that: The NFC antenna is a planar spiral NFC antenna.

5. The implantable drug delivery device with near field communication function according to claim 1, characterized in that: The charging coil is directly printed on the outer wall of the drug delivery cavity through the PDS process.

Images