Magnetic control vibration capsule capable of being adsorbed for long time and system

Abstract

The invention belongs to the field of medical instruments, and particularly discloses a magnetic control vibration capsule capable of being adsorbed for a long time and a system. The magnetic control component responds to polarity change of an external magnetic field, multiple times of starting and stopping of the vibration motor are achieved, the annular magnet magnetized in the radial direction responds to existence of the external magnetic field, the vibration capsule is attracted to the designated position in the digestive tract for a long time, attraction and vibration control are achieved at the same time through the external magnetic field, and the vibration effect is improved. The capsule can be retained for a long time, triggered for multiple times and stimulated to the gastric vagus nerve for multiple times, so that the purposes of repeatedly using the weight-losing vibration capsule and reducing the times of swallowing the capsule are achieved. The whole circuit is triggered by depending on a mechanical structure, an external magnetic field can be used for controlling the on-off of the circuit, the circuit can be closed when not used, and the theoretical endurance time is not less than 10 hours.

Description

Technical Field

[0001] The present application belongs to the field of medical devices, and more specifically, to a magnetically controlled vibration capsule and system capable of long-term adsorption. Background Art

[0002] Using a vibrating capsule to stimulate stomach receptors is an effective way to lose weight. The principle is that it can produce a false sense of fullness, thereby reducing food intake and fundamentally treating obesity.

[0003] Patent CN113384385A of Shanghai Anhan Medical proposes a vibrating capsule, in one embodiment of which the capsule opening / closing module is a magnetically controlled reed switch. The magnetically controlled reed switch interacts with the magnetic base in the vibrating capsule package and is magnetically paired with each other. The capsule is in a closed state when in the package. Once the package is removed, the reed switch can open the capsule. However, the circuit is always in a working state, causing battery leakage and reducing battery life. And after swallowing, the capsule changes position following the peristalsis of the digestive tract, and it cannot be guaranteed that it will stay in the designated position in the digestive tract for a long time.

[0004] Therefore, a vibrating capsule that can stay for a long time and can be selectively switched on and off is needed. Summary of the invention

[0005] In view of the defects of the prior art, the purpose of this application is to propose a magnetically controlled vibration capsule and system that can be adsorbed for a long time, aiming to solve the problems of short battery life and inability to stay for a long time in the prior art.

[0006] The first aspect of the present application relates to a magnetically controlled vibration capsule capable of long-term adsorption, the magnetically controlled vibration capsule comprising a shell and a vibration motor, a magnetically controlled component, a ring magnet and a power supply fixed in the shell; The magnetic control component has a default disconnected state and is used to drive the vibration motor to start and shut down in response to a change in the polarity of the external magnetic field; The annular magnet radially sleeved on the vibration motor is pre-treated with radial magnetization and is used to respond to the existence of an external magnetic field to generate an adsorption force on the capsule, so that it is adsorbed in the digestive tract at a position directly opposite to the external magnetic field generating device.

[0007] In some embodiments, the magnetism control component is located at one axial end of the shell, and the annular magnet is located at the other axial end of the shell.

[0008] It should be noted that the magnetic control component and the annular magnet are disposed at opposite ends of the capsule in the axial direction, thereby preventing the internal magnet from accidentally triggering the magnetic control component.

[0009] In some embodiments, the axial distance between the magneto control component and the annular magnet satisfies that: the magnetic field intensity generated by the annular magnet at the magneto control component is lower than the triggering magnetic field intensity of the magneto control component.

[0010] It should be noted that the present application prefers the above axial distance setting, at which time the transverse magnetization magnet does not reach the trigger magnetic field of the magnetic control component, so the triggering of the magnetic control component and the capsule adsorption are decoupled. In actual use, the magnetic field generated by the internal magnet used to adsorb the capsule will trigger the magnetic control component by mistake, causing the circuit to be in the open state all the time, resulting in the capsule circuit being unable to be closed normally, so it is necessary to decouple the triggering of the magnetic control component from the adsorption.

[0011] In some embodiments, the magnetic control component is composed of a plurality of magnetic control switches connected in parallel and a single bipolar Hall latch connected in series, and the triggering directions of the magnetic control switches and the bipolar Hall latch are different.

[0012] It should be noted that the present application preferably connects the magnetically controlled switch in series with a single bipolar Hall latch, and the triggering direction of the magnetically controlled switch is different from that of the bipolar Hall latch, so as to prevent the entire capsule circuit from being accidentally opened.

[0013] In some embodiments, the plurality of magnetically controlled switches are composed of two or three orthogonally placed reed switches.

[0014] It should be noted that a single reed switch has a triggering dead zone. The present application preferably places two reed switches orthogonally so that the triggering dead zone is reduced from a plane to a straight line. Preferably, three reed switches are placed orthogonally to directly avoid the dead zone of the reed switch.

[0015] In some embodiments, the magnetically controlled vibration capsule further comprises: The circuit board is used to change the duty cycle of the power supply output current waveform in response to an external control instruction, so as to change the output current mean value of the power supply, thereby changing the vibration frequency of the vibration motor.

[0016] A second aspect of the present application relates to a magnetically controlled vibration capsule system, comprising the magnetically controlled vibration capsule as described in any embodiment of the present application and an external control terminal; The external control terminal is used to communicate with the magnetically controlled vibration capsule and send control instructions to change the duty cycle of the power supply output current waveform.

[0017] In some embodiments, it also includes: a wearable magnetic field generating device for providing a magnetic field to the magnetically controlled vibration capsule.

[0018] In some embodiments, the wearable magnetic field generating device is a magnetic soft body made of neodymium iron boron particles coated with silicone.

[0019] It should be noted that the present application preferably uses the above-mentioned magnetic software to constitute a wearable magnetic field generating device. Since the magnetic software has good ductility and high space utilization, the weight of the device is reduced and it is convenient to wear.

[0020] In some embodiments, the system is applied to digestive tract massage or medical weight loss.

[0021] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0022] In general, the above technical solutions conceived by this application have the following beneficial effects compared with the prior art: The present application proposes a magnetically controlled vibration capsule that can be adsorbed for a long time. The magnetically controlled component responds to the change in polarity of the external magnetic field to realize multiple starts and stops of the vibration motor. The radially magnetized annular magnet responds to the existence of the external magnetic field to realize the long-term adsorption of the vibration capsule at a specified position in the digestive tract. The adsorption and vibration control are realized simultaneously through an external magnetic field. The capsule can be retained for a long time, triggered multiple times, and stimulate the vagus nerve of the stomach multiple times, thereby realizing the multiple use of the weight loss vibration capsule and reducing the number of times the capsule is swallowed. The overall circuit relies on the mechanical structure for triggering, and its switch can be controlled by an external magnetic field. It can be turned off when not needed, and the theoretical battery life is not less than 10 hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of a magnetically controlled vibration capsule capable of long-term adsorption provided in an embodiment of the present application.

[0024] Figure 2 This is a schematic diagram of the circuit connection of a magnetically controlled vibration capsule capable of long-term adsorption provided in an embodiment of the present application.

[0025] Figure 3 This is a schematic diagram of the external magnetic field of the magnetically controlled vibration capsule provided in an embodiment of the present application.

[0026] Figure 4 It is a schematic diagram of the specific working process of the magnetically controlled vibration capsule provided in an embodiment of the present application.

[0027] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1 is a housing, 2 is a vibration motor, 3 is a magnetic control component, 4 is a ring magnet, 5 is a power supply, 6 is a circuit board, 31 is a magnetic control switch, and 32 is a bipolar Hall latch. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0030] First, as Figure 1 As shown, the present application relates to a magnetically controlled vibration capsule capable of long-term adsorption, the magnetically controlled vibration capsule comprising a shell 1 and a vibration motor 2, a magnetically controlled component 3, an annular magnet 4 and a power supply 5 fixed in the shell; the magnetically controlled component 3 has a default disconnected state, and is used to drive the start and shut down of the vibration motor 2 in response to the polarity change of the external magnetic field; the annular magnet 4 radially sleeved on the vibration motor 2 has been subjected to radial magnetization pretreatment, and is used to respond to the existence of an external magnetic field, generate an adsorption force acting on the capsule, so that it is adsorbed in the digestive tract at a position directly opposite to the external magnetic field generating device.

[0031] The shell can support internal components to ensure that the vibrating capsule works normally under vibration. The shell is also made of biocompatible materials that pass safety standards, for example, medical grade polycarbonate is used as the shell material.

[0032] The magnetically controlled vibrating capsule can have any size or dimension as long as it can be placed in the patient's body. In one embodiment, the capsule is 26 mm long from the front end to the rear end, and has two hemispherical ends, the diameter of the hemispherical ends is about 12 mm, and the shell thickness is 0.6 mm.

[0033] The magnetically controlled vibrating capsule can have any weight as long as it does not cause significant discomfort to the patient when moved or vibrated, and the weight can be changed according to the built-in battery. In one embodiment, the weight of the capsule is less than 3 grams; in another embodiment, the weight of the capsule is less than 3.5 grams.

[0034] In one embodiment, the vibration motor is an eccentric wheel motor. The motor and the eccentric wheel provide vibration power for the capsule, and by changing the duty cycle of the power supply output current waveform, the vibration capsule has an adjustable vibration frequency, for example, a vibration with a frequency of 5-20Hz and an adjustable duty cycle of 0.1 to 1. The vibration intensity of the vibration capsule has a preset value, which is preset when the capsule leaves the factory. Each vibration capsule can be customized to a different vibration intensity. In one embodiment, the rotation speed of the vibration motor can be 100 rpm to 6000 rpm, and the theoretical endurance time at the maximum speed of the motor is not less than 10 hours.

[0035] The magnetic control component can sense the change of the external magnetic field to realize the opening and closing of the entire internal circuit of the magnetic control capsule, thereby putting the magnetic control capsule in the starting and closing state. Preferably, the triggering magnetic field of the magnetic control component is 2mT-20mT. In one embodiment, the triggering magnetic field is less than 4mT; in another embodiment, the triggering magnetic field is less than 5mT.

[0036] In one embodiment, the magnetic control component is located at one axial end of the shell, and the annular magnet is located at the other axial end of the shell.

[0037] In one embodiment, the axial distance between the magneto control component and the annular magnet satisfies that: the magnetic field intensity generated by the annular magnet at the magneto control component is lower than the triggering magnetic field intensity of the magneto control component.

[0038] In one embodiment, the annular magnet is an N35 annular magnet with an inner radius of 2 mm and an outer radius of 4 mm, and its residual magnetization intensity is 1.21 T. At this time, it is necessary to keep a distance of more than 12 mm from the reed switch to ensure that the internal magnet does not cause malfunction of the internal magnetic control element.

[0039] In one embodiment, the magnetic control component 3 is composed of a plurality of magnetic control switches 31 connected in parallel and a single bipolar Hall latch 32 connected in series. The magnetic control switch 31 includes but is not limited to a normally open reed switch, a normally closed reed switch and a Hall switch.

[0040] In one embodiment, the plurality of magnetically controlled switches 31 are composed of two or three orthogonally placed reed switches.

[0041] In one embodiment, the magnetically controlled vibration capsule further includes: a circuit board 6, which is used to change the duty cycle of the power supply output current waveform in response to an external control instruction, so as to change the output current mean value of the power supply, thereby changing the vibration frequency of the vibration motor. The duty cycle includes but is not limited to 50%, 80%, and 100%. Figure 2 As shown, the circuit board is connected between the vibration motor and the Hall latch, and is controlled to be disconnected by the bipolar Hall latch. It can only be controlled to be disconnected when the polarity of the external magnetic field changes.

[0042] like Figure 2 As shown, the power source 5 supplies power to the overall circuit, which includes: a magnetic control element, a vibration motor and a circuit board. The power source involved in this application includes but is not limited to a lithium battery, a silver oxide battery, a rechargeable battery and a wireless charging device.

[0043] In the second aspect, the present application relates to a magnetically controlled vibration capsule system, comprising a magnetically controlled vibration capsule as described in any embodiment of the present application and an external control terminal; the external control terminal is used to communicate with the magnetically controlled vibration capsule and send control instructions to change the duty cycle of the power supply output current waveform.

[0044] The circuit board and the external control terminal can communicate via Bluetooth or wireless protocol. The external control terminal can be a smart phone or a tablet.

[0045] In some embodiments, the device further comprises: a wearable magnetic field generating device for providing a magnetic field to the magnetically controlled vibrating capsule. In one embodiment, the wearable magnetic field generating device is an N35 magnet, which is used to adsorb the vibrating capsule and provide a triggering magnetic field to the capsule. The magnetic field generated at the capsule position is not less than 3mT.

[0046] In actual use, if the reed switch and Hall latch are not placed in a special direction, since the magnetic lines of force are closed curves, both devices will respond under the action of the magnetic field, resulting in false triggering of the circuit, which will cause the circuit to be open for a long time and cause power loss.

[0047] like Figure 3 As shown, when in use, due to the gradient of the magnetic field of the magnet, the magnetic field component in the axial direction of the capsule can reach the trigger value of the reed switch and the Hall latch, so that the trigger magnetic field directions of the reed switch and the Hall latch are different, and therefore the actions of the two are decoupled.

[0048] If the magnetization direction of the ring magnet is in the X direction, adjust the direction of the wearable magnetic field generating device so that it applies a magnetic field in the X direction to the ring magnet, thereby achieving the adsorption of the capsule. Adjust the direction of the wearable magnetic field generating device so that it applies a magnetic field in the Y direction to the three reed switches and the bipolar Hall latch, thereby achieving the adsorption and vibration of the capsule. At this time, the ring magnet and the magnetic control component are completely decoupled.

[0049] In one embodiment, the wearable magnetic field generating device is a magnetic soft body made of neodymium iron boron particles coated with silicone.

[0050] In one embodiment, the system is applied to digestive tract massage or medical weight loss.

[0051] like Figure 4As shown, the working process of the magnetically controlled vibration capsule involved in the above embodiment is as follows: (1) When the capsule is stored or before use, it is in a non-magnetic field environment and the entire circuit is disconnected; (2) The capsule is swallowed, and the capsule is in state A (free); (3) A magnet is placed on the outer side of the stomach. At the beginning, the direction of the magnetic field is opposite to the magnetic field triggered by the bipolar Hall latch, and the entire circuit is disconnected to achieve the purpose of saving power. At this time, the capsule is in state B (adsorption only); (4) The magnetic field of the magnet is flipped, the bipolar Hall latch is activated, the circuit is closed, the circuit board starts to work, the capsule starts to release signals, and the capsule is connected with an external control device to control the vibration frequency of the capsule and whether it vibrates. At this time, the capsule is in state C (adsorption + vibration); (5) When it is necessary to stop halfway, the magnetic field of the magnet is flipped again. At this time, the capsule is in state B (adsorption only) to achieve power saving mode; (6) When the capsule is out of power or no longer needs to be used, the external magnet is removed and the capsule is discharged with the digestive tract. At this time, the capsule is in state D.

[0052] It should be understood that expressions such as "including" and "may include" that may be used in the present application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In the present application, terms such as "including" and / or "having" may be interpreted as indicating specific characteristics, numbers, operations, constituent elements, components, or combinations thereof, but may not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0053] In addition, in the present application, the expression "and / or" includes any and all combinations of the associated listed words. For example, the expression "A and / or B" may include A, may include B, or may include both A and B.

[0054] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. "Rotational connection" means that the two are connected to each other and can rotate relative to each other after connection. "Sliding connection" means that the two are connected to each other and can slide relative to each other after connection. The directional terms mentioned in the embodiments of the present application, such as "top", "bottom", "inside", "outside", "left", "right", etc., are only reference directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0055] In addition, in the embodiments of the present application, the mathematical concepts mentioned are symmetry, equality, parallelism, verticality, etc. These limitations are all for the current state of the art, rather than being absolutely strict definitions in a mathematical sense, and allow a small amount of deviation, approximation to symmetry, approximation to equality, approximation to parallelism, approximation to verticality, etc. are all possible. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0056] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A magnetically controlled vibration capsule capable of long-term adsorption, characterized in that: It includes a housing, a vibration motor, a magnetic control component, a ring magnet and a power supply fixed in the housing; The magnetic control component has a default disconnected state and is used to drive the vibration motor to start and shut down in response to a change in the polarity of the external magnetic field; The annular magnet radially sleeved on the vibration motor is pre-treated with radial magnetization and is used to respond to the existence of an external magnetic field to generate an adsorption force on the capsule, so that it is adsorbed in the digestive tract at a position directly opposite to the external magnetic field generating device.

2. The magnetically controlled vibrating capsule according to claim 1, characterized in that: The magnetic control component is located at one axial end of the shell, and the annular magnet is located at the other axial end of the shell.

3. The magnetically controlled vibrating capsule according to claim 2, characterized in that: The axial distance between the magneto control component and the annular magnet satisfies that the magnetic field intensity generated by the annular magnet at the magneto control component is lower than the triggering magnetic field intensity of the magneto control component.

4. The magnetically controlled vibrating capsule according to claim 1, characterized in that: The magnetic control component is composed of a plurality of magnetic control switches connected in parallel and a single bipolar Hall latch connected in series, and the triggering directions of the magnetic control switches and the bipolar Hall latch are different.

5. The magnetically controlled vibrating capsule according to claim 4, characterized in that: The plurality of magnetically controlled switches are composed of two or three orthogonally placed reed switches.

6. The magnetically controlled vibrating capsule according to claim 1, characterized in that: The magnetically controlled vibration capsule also includes: The circuit board is used to change the duty cycle of the power supply output current waveform in response to an external control instruction, so as to change the output current mean value of the power supply, thereby changing the vibration frequency of the vibration motor.

7. A magnetically controlled vibrating capsule system, characterized in that: It comprises the magnetically controlled vibration capsule as claimed in any one of claims 1 to 6 and an external control terminal; The external control terminal is used to communicate with the magnetically controlled vibration capsule and send control instructions to change the duty cycle of the power supply output current waveform.

8. The magnetically controlled vibrating capsule system according to claim 7, characterized in that: Also includes: A wearable magnetic field generating device is used to provide a magnetic field to a magnetically controlled vibrating capsule.

9. The magnetically controlled vibrating capsule system according to claim 8, characterized in that: The wearable magnetic field generating device is a magnetic soft body made of neodymium iron boron particles coated with silicone.

10. The magnetically controlled vibrating capsule system according to any one of claims 7 to 9, characterized in that: The system is applied to digestive tract massage or medical weight loss.

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