Implantable micropump dosing device
By designing a flat, elongated micropump drug delivery device, the problems of large incisions and inconsistent drug delivery required by traditional implantable drug delivery devices have been solved. This device achieves precise and consistent drug release through small incisions, improving patients' convenience and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZETTASENSING TECH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-15
AI Technical Summary
Existing implantable drug delivery devices have difficulty ensuring consistent drug delivery over long-term use, and traditional designs require large incisions for implantation, affecting patient comfort and convenience.
A flat, elongated micropump drug delivery device is designed, comprising a non-biotoxic shell, a micropump, and a drug storage container. It uses deformable materials, combines 3D packaging technology and timing control, and is powered by non-contact communication to monitor human indicators and adjust the drug delivery dosage.
It enables small-incision implantation, reduces foreign body sensation, ensures the accuracy and consistency of drug administration, and improves the convenience and comfort of patients' lives.
Smart Images
Figure CN224235506U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical technology, and in particular to an implantable micropump drug delivery device. Background Technology
[0002] Currently, in the medical field, chronic diseases (such as diabetes and cancer treatment) require long-term, scheduled drug injections. However, long-term, continuous injection therapy lacks convenience and causes ongoing trauma and pain for patients. Therefore, implantable devices that can continuously release medication over a longer period would greatly improve patients' quality of life and reduce their suffering. However, existing sustained-release technologies struggle to guarantee consistent drug delivery throughout the patient's lifespan.
[0003] Traditional implantable drug delivery devices are mostly designed as slender cylinders. The thinner circular cross-section allows for implantation through smaller incisions, while the longer length provides sufficient volume to hold the drug solution. Traditional implantable drug delivery often uses osmosis or diffusion methods, which are not conducive to precise control or adjustment of the dosage. Using micropumps can effectively solve this problem. Micropumps are typically manufactured using microelectromechanical systems (MEMS) technology. These micropumps are very thin but need to have a certain area, and both the length and width dimensions of this area need to maintain a certain scale to ensure efficiency. In contrast, a slender cylinder only has one dimension with sufficient scale. If this design were still used, it would greatly increase the diameter, requiring a larger implantation incision. An excessively thick device after implantation can easily form a noticeable bulge under the skin, affecting patient comfort. Utility Model Content
[0004] The purpose of this invention is to provide an implantable micropump drug delivery device to solve the problems in the prior art.
[0005] To solve the above-mentioned technical problems, this utility model provides an implantable micropump drug delivery device, comprising:
[0006] The outer shell is flat and elongated, making it easy to implant under the skin.
[0007] Both the drug storage container and the micro pump are located within the flat, elongated outer shell; the micro pump is used to control the release of the drug from the drug storage container.
[0008] In one embodiment, the medicine storage container is made of a deformable material, and its volume decreases accordingly after the medicine is released.
[0009] In one embodiment, the outer shell is provided with openings, slots, or a semi-permeable membrane. After the volume of the drug storage container is reduced, human tissue fluid enters the outer shell through the openings to balance the internal and external pressures.
[0010] In one embodiment, the implantable micropump drug delivery device further includes a control circuit for controlling the micropump to release the drug solution from the drug storage container.
[0011] In one embodiment, the implantable micropump drug delivery device further includes a timing device or the control circuit has a timing function for timing control of the micropump.
[0012] In one embodiment, the micropump and the control circuit are vertically bonded using 3D packaging technology.
[0013] In one embodiment, the implantable micropump drug delivery device further includes an energy storage element that supplies the required energy to the micropump, the control circuit, and the timing device via electrical connection components.
[0014] In one embodiment, the energy storage element includes, but is not limited to, a battery, a rechargeable battery, and a capacitor.
[0015] In one embodiment, the electrical connection component includes, but is not limited to, a circuit board, a flexible circuit board, and a wire harness.
[0016] In one embodiment, the micropump is positioned along the flat direction of the housing.
[0017] In one embodiment, the implantable micropump drug delivery device further includes an antenna for non-contact communication and power supply. The antenna includes, but is not limited to, lines drawn on electrical connection components, wire windings, or ceramic antennas, for directly controlling the operation of the device, modifying device parameters, exporting device data, directly powering the implantable micropump drug delivery device, or storing energy for energy storage elements.
[0018] In one embodiment, the micropump is a valveless pump or a valved pump. If it is a valved pump, its inlet and / or outlet have actively or passively controlled valves to control the flow direction of the liquid medicine. If it is a valveless pump, the flow direction of the liquid medicine is controlled by the flow channel design.
[0019] In one embodiment, the outer shell is non-biotoxic and has stable performance.
[0020] In one embodiment, the flat, elongated shape of the outer shell includes, but is not limited to, one or more combinations of horizontal, curved, and folded elongated shapes, to adapt to the implantation site.
[0021] In one embodiment, the implantable micropump drug delivery device is wired or wirelessly interconnected with an internal or external monitoring device, which monitors human indicators and controls the release of drug liquid by the implantable micropump drug delivery device based on changes in human indicators.
[0022] In one embodiment, the monitoring device includes, but is not limited to, sensors and instruments for monitoring human body indicators.
[0023] This invention provides an implantable micropump drug delivery device, which has the following beneficial effects:
[0024] (1) By setting the micropump and the shell in a flat direction, the overall thickness of the drug delivery device is controlled within a small range, avoiding the feeling of foreign body after subcutaneous implantation. At the same time, the inlet / outlet of the micropump is directly connected to the flow channel of the drug reservoir, reducing fluid resistance.
[0025] (2) The shell is flat and long, the material is non-toxic and stable, and the shell is designed as a flat and long shell with an arc, or with one or more bends to adapt to the implantation site. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the present invention;
[0027] Figure 2 for Figure 1 A top-down view;
[0028] Figure 3 for Figure 1 A front view diagram.
[0029] In the diagram: 1. Outer shell; 2. Medicine storage container; 3. Micro pump; 4. Energy storage element; 5. Electrical connection component; 6. Opening; 7. Control circuit; 8. Timing device. Detailed Implementation
[0030] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the implantable micropump drug delivery device proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0031] Please see Figure 1-3 This invention provides an implantable micropump drug delivery device, including a shell 1. The shell 1 is made of a non-biotoxic and stable material, preferably titanium. The shell 1 has a flat and elongated structure; preferably, the shell 1 can be entirely parallel and elongated, or partially designed as a flat and elongated shell with a curved or bent arc, which can be adapted and adjusted according to the implantation site.
[0032] The outer shell 1 is flat and elongated, and contains a drug storage container 2 and a micro pump 3 that controls the release of the drug solution. The micro pump 3 is placed along the flat direction of the outer shell 1. The outer shell 1 also contains an energy storage element 4 that powers the micro pump 3. The energy storage element 4 can be a battery, a rechargeable battery, or a capacitor. The outer shell 1 has openings 6, slots, or semi-permeable membranes. The drug storage container 2 is made of deformable material. After the drug solution is pumped out by the micro pump, the volume of the drug storage container 2 decreases accordingly. The tissue fluid of the human body enters the outer shell 1 through the openings 6 to balance the internal and external pressures.
[0033] Please see Figure 2 The micropump 3 has an inlet and an outlet on the left and right sides of its circular cavity, respectively. The left inlet is directly connected to the drug storage container 2, or connected via a tube. When the micropump 3 is working, the drug in the drug storage container 2 is drawn into the micropump 3 through the left inlet and then pumped out through the right outlet. There is an opening on the far right side of the outer casing 1, through which the drug enters the human body. There is a blank area between the outlet on the right side of the micropump 3 and the outlet of the outer casing 1, which can be used to place components such as semi-permeable membranes and filter membranes for drug isolation and filtration.
[0034] The micro pump 3 can be a valveless pump or a valved pump. If it is a valved pump, its inlet and / or outlet have valves with active or passive control to control the flow direction of the liquid medicine. If it is a valveless pump, the flow direction of the liquid medicine is controlled by the flow channel design.
[0035] The housing 1 also includes a control circuit 7 for controlling the micropump 3 to release the drug solution from the drug storage container 2. The implantable micropump drug delivery device also includes a timing device 8 or a timing function in the control circuit 7 for timing control of the micropump 3. Furthermore, the micropump 3 and the control circuit 7 are vertically bonded using 3D packaging technology to reduce size.
[0036] Implantable micropump drug delivery devices can also be wired or wirelessly interconnected with internal or external monitoring devices. These monitoring devices detect human indicators and control the release of medication via the micropump device based on changes in these indicators. The monitoring devices can be sensors and instruments that monitor human indicators. Sensors can be blood glucose sensors, blood pressure sensors, heart rate sensors, etc.; instruments can be blood pressure monitors, blood glucose meters, etc.
[0037] The outer casing 1 also includes an electrical connection component 5. The energy storage element 4 supplies the required energy to the micro-pump 3, control circuit 7, and timing device 8 through the electrical connection component 5. The electrical connection component 5 can be a circuit board, a flexible circuit board, or a wire harness. The implantable micro-pump drug delivery device also includes an antenna for non-contact communication and power supply. The antenna can be a circuit drawn on the circuit board or flexible circuit board of the electrical connection component 5, or an independent component such as a wire winding or a ceramic antenna. The antenna can directly control the operation of the device, modify device parameters, and export various data, including stored data, system status data, and sensor monitoring data. It can also directly supply power to devices that require electrical energy or store energy in the energy storage element 4.
[0038] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. An implantable micropump drug delivery device, characterized in that, include: The outer shell (1) has a flat, elongated shape, which facilitates subcutaneous implantation in the human body; The liquid medicine storage container (2) and the micro pump (3) are both located in the flat, elongated outer shell (1); the micro pump (3) is used to control the release of liquid medicine from the liquid medicine storage container (2).
2. The implantable micropump drug delivery device as described in claim 1, characterized in that, The liquid medicine storage container (2) is made of a deformable material, and its volume decreases accordingly after the liquid medicine in the liquid medicine storage container (2) is released.
3. The implantable micropump drug delivery device as described in claim 2, characterized in that, The outer shell (1) is provided with an opening (6), a groove or a semi-permeable membrane. After the volume of the drug storage container (2) is reduced, human tissue fluid enters the outer shell (1) through the opening (6) to balance the internal and external pressure.
4. The implantable micropump drug delivery device as described in claim 1, characterized in that, The implantable micropump drug delivery device also includes a control circuit (7) for releasing the drug solution in the drug solution storage container (2) by controlling the micropump (3).
5. The implantable micropump drug delivery device as described in claim 4, characterized in that, The implantable micropump drug delivery device also includes a timing device (8) or the control circuit (7) has a timing function for timing control of the micropump (3).
6. The implantable micropump drug delivery device as described in claim 4 or 5, characterized in that, The micropump (3) and the control circuit (7) are vertically bonded using 3D packaging technology.
7. The implantable micropump drug delivery device as described in claim 5, characterized in that, The implantable micropump drug delivery device also includes an energy storage element (4) that supplies the required energy to the micropump (3), the control circuit (7), and the timing device (8) via an electrical connection component (5).
8. The implantable micropump drug delivery device as described in claim 7, characterized in that, The energy storage element (4) includes, but is not limited to, batteries, rechargeable batteries, and capacitors.
9. The implantable micropump drug delivery device as described in claim 7, characterized in that, The electrical connection component (5) includes, but is not limited to, circuit boards, flexible circuit boards, and wire harnesses.
10. The implantable micropump drug delivery device as described in claim 1, characterized in that, The micro pump (3) is positioned along the flat direction of the housing (1).
11. The implantable micropump drug delivery device as described in claim 7, characterized in that, The implantable micropump drug delivery device also includes an antenna for non-contact communication and power supply. The antenna includes, but is not limited to, lines drawn on the electrical connection component (5), wire windings, or ceramic antennas, for directly controlling the operation of the device, modifying device parameters, exporting device data, directly powering the implantable micropump drug delivery device, or storing energy for the energy storage element (4).
12. The implantable micropump drug delivery device as described in claim 1, characterized in that, The micro pump (3) is either a valveless pump or a valved pump. If it is a valved pump, its inlet and / or outlet have valves that are actively or passively controlled to control the flow direction of the liquid medicine. If it is a valveless pump, the flow direction of the liquid medicine is controlled by the flow channel design.
13. The implantable micropump drug delivery device as described in claim 1, characterized in that, The outer shell (1) is non-biotoxic and has stable performance.
14. The implantable micropump drug delivery device as described in claim 1, characterized in that, The flat, elongated shape of the outer shell (1) includes, but is not limited to, one or more combinations of horizontal, curved, and folded elongated shapes, to adapt to the implantation site.
15. The implantable micropump drug delivery device as described in claim 1, characterized in that, The implantable micropump drug delivery device is wired or wirelessly interconnected with an internal or external monitoring device. The monitoring device is used to monitor human indicators and control the release of drug liquid by the implantable micropump drug delivery device based on changes in human indicators.
16. The implantable micropump drug delivery device as described in claim 15, characterized in that, The monitoring device includes, but is not limited to, sensors and instruments used to monitor human body indicators.