CN213609428U - Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology - Google Patents

Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology Download PDF

Info

Publication number
CN213609428U
CN213609428U CN202021130779.6U CN202021130779U CN213609428U CN 213609428 U CN213609428 U CN 213609428U CN 202021130779 U CN202021130779 U CN 202021130779U CN 213609428 U CN213609428 U CN 213609428U
Authority
CN
China
Prior art keywords
magnetic
moving magnet
transistor
coil
disk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202021130779.6U
Other languages
Chinese (zh)
Inventor
方昌家
尹立杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Senrong Pharmaceutical Technology Co ltd
Original Assignee
Guangzhou Senrong Pharmaceutical Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Senrong Pharmaceutical Technology Co ltd filed Critical Guangzhou Senrong Pharmaceutical Technology Co ltd
Priority to CN202021130779.6U priority Critical patent/CN213609428U/en
Application granted granted Critical
Publication of CN213609428U publication Critical patent/CN213609428U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Magnetic Treatment Devices (AREA)

Abstract

The utility model relates to a medical care technical field, in particular to adopt sole reflection to move magnetic treatment device that moves of magnetism technique, including applying the shell on human skin, the middle part position of shell is equipped with a bellied vertical scroll, be equipped with antifriction bearing on the vertical scroll antifriction bearing's outer lane is equipped with the disk, the equidistance distributes on the concentric circle of disk and is equipped with the magnetic sheet, and the clearance department of the top of disk installs control disk pivoted electronic circuit board be equipped with the coil on the position that takes place the effect of cutting magnetic line of force when the disk is ensured to the top of disk. The device realizes the miniaturization and micro-power consumption of the moving magnet technology, achieves the prerequisite of combined application of portability, wearability and the like, can be conveniently combined with external application therapies of various forms, generates a novel portable and wearable plantar reflex therapy technology, and is convenient for patients to use and operate.

Description

Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology
Technical Field
The utility model relates to the technical field of medical care, in particular to a moving magnet therapy device adopting the plantar reflection moving magnet technology.
Background
Magnetotherapy refers to the treatment of diseases by applying a magnetic field to the human body. Ancient medical literature in China has records of using magnetism to relieve pain and treat certain diseases. The literature records that the magnet is externally used for treating uterine prolapse as soon as spring, autumn and warring countries by famous medical magpies. The Ming Dynasty's famous medical Li Shizhen in Ben Cao gang mu describes the magnetic field therapy of meridian point for treating rectocele by placing magnet on Baihui point. In recent years, with the development of material science and medicine, the research and application development of magnetic materials and magnetic therapy technology at home and abroad is faster, a certain curative effect is achieved on the treatment of some diseases, and the magnetic therapy becomes one of the more common physical therapies.
Experiments prove that the magnetic field can affect the mobility of ions inside and outside biological cells, the potential of cell membranes, the activity of certain enzymes, the respiration of cells, the synthetic decomposition and chemical reaction processes of certain substances, the metabolism of tissues and the functions of tissues and organs. Magnetic fields can also affect the growth and development of certain organisms. The magnetic field influences the bioelectric current and the biological magnetic field of human tissues such as nerves, muscles, heart, lung, brain, etc., interferes the pathological process, regulates the physiological balance, and promotes the recovery of normal functions.
According to the research, the magnetic field can reduce the inductivity of the nerve endings to external stimulation, increase the pain threshold and play a role in easing pain. Skalak and Morris in the United states also found that treatment with static magnetic fields immediately following inflammatory injury significantly reduced vessel dilation and accelerated recovery of inflammatory injury. The magnetic field also has effects of tranquilizing, improving sleep, relieving muscle spasm and lowering blood pressure.
In China, the developed magnetic therapy health care products comprise a magnetic therapy belt, a magnetic therapy pillow, a magnetic therapy mattress, a magnetic therapy waistcoat, a magnetic therapy shoulder pad, a magnetic therapy knee pad, a magnetic therapy five-row needle and the like. In foreign countries, a magnetic therapy bracelet has also been popular for a while. These magnetotherapy health products are all static magnetic therapy. One or more permanent magnets are placed on the affected part or acupoint, and the treatment is carried out by using a constant static magnetic field, so that the method is simple and easy to implement. However, magnetostatic therapy has significant limitations. Some parts of the human body can be subjected to magnetic adaptation or magnetic fatigue under a high-strength magnetic field for a long time, so that the curative effect is influenced, and even the harmful effect is realized. In view of this, gyromagnetic therapy apparatuses capable of generating a dynamic magnetic field have been developed at home and abroad. The machine head of the gyromagnetic machine is internally provided with 2-4 samarium-cobalt alloy permanent magnets which are driven by a small motor to act on a human body through a moving magnetic field, so that a better analgesic effect can be obtained. In addition, the electromagnetic therapeutic apparatus which utilizes the pulse or alternating current to generate the pulse or alternating magnetic field through the special coil to act on the human body can also overcome the defects in the static magnetic therapy.
The gyromagnetic therapy machine and the electromagnetic therapy apparatus have defects in practical use. Firstly, magnetic therapy is a physiotherapy method which can obtain curative effect for a long time, people expect a variable magnetic field which can act on a treatment part for a long time, and have special requirements on energy dependence, such as a gyromagnetic therapy machine which needs a motor to drag a permanent magnet, and an electromagnetic therapy machine which needs a pulsating or alternating current drive coil to generate the variable magnetic field, and the method has limitations in practical application. Second, for the vast population that requires everyday healthcare, they are more demanding of a portable and low power consumption device. In fact, the electromagnetic therapeutic apparatus is a device with considerable volume, weight and power consumption; even if the gyromagnetic therapy machine adopts a micro motor, the volume of the gyromagnetic therapy machine can meet the requirement of portability, but when the gyromagnetic therapy machine is used in a portable mode, the requirement for a power supply battery is not easy to meet.
An object of the utility model is to provide an utilize electron motor of little consumption to drag the magnetotherapy device that the permanent magnet produced the dynamic magnetic field, under the prerequisite of guaranteeing the curative effect, satisfy energy-conserving and portable requirement among the magnetotherapy technique.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defects of the prior art, the utility model provides a moving magnetic therapy device adopting the sole reflection moving magnetic technology to solve the problem proposed in the above-mentioned background art.
The utility model provides a technical scheme that problem among the prior art adopted does: a movable magnetic treatment device adopting a plantar reflection movable magnetic technology comprises a shell applied to the skin of a human body, wherein a raised vertical shaft is arranged in the middle of the shell, a rolling bearing is arranged on the vertical shaft, a magnetic disc is arranged on the outer ring of the rolling bearing, magnetic sheets are distributed on the concentric circle of the magnetic disc at equal intervals, an electronic circuit board for controlling the rotation of the magnetic disc is installed in a gap above the magnetic disc, and a coil is arranged at a position above the magnetic disc, which is used for ensuring the effect of cutting magnetic lines of force when the magnetic disc rotates.
As the preferred scheme of the utility model one of them end department of shell is equipped with the cavity, set up in the cavity for the button cell of electronic circuit board power supply.
As a preferable embodiment of the present invention, the electronic circuit board is an electronic motor driving circuit including a two-stage closed-loop coupling electromagnetic amplifier, the electronic motor driving circuit is provided with a transistor Q1 and a transistor Q2, bases of the transistor Q1 and the transistor Q2 are connected with an electrolytic capacitor C1 and an electrolytic capacitor C2 which couple induced electromotive force generated when the coil cuts magnetic lines to the base of the transistor Q1, collectors of the transistor Q1 and the transistor Q2 are connected with a coil L1 and a coil L2 which generate electromagnetic force for driving the magnetic sheet to rotate in the same direction so as to continuously rotate the magnetic sheet, the other ends of the coil L1 and the coil L2 are further connected with a diode LED, the diode LED is connected with a battery E, and the battery E is connected with a starting switch K.
As a preferred embodiment of the present invention, the electronic motor driving circuit is provided with a capacitor C3 for eliminating self-oscillation.
As the preferred scheme of the utility model, the shell is provided with medical adhesive tapes for fixing the shell and the skins of different positions of the human body, a bracket or other equipment which can be combined and used in a matched way.
As the utility model discloses a preferred scheme, can increase and decrease the magnetic sheet or change the magnetic sheet of different magnetic field intensity according to the magnetic field energy of difference or rotational speed requirement on the disk.
As the preferred proposal of the utility model, the magnetic sheet adopts a round cake shape, a cylinder shape, a square shape, a spherical shape and a bar-shaped structure.
Compared with the prior art, the utility model discloses following technological effect has:
1. according to the foot bottom reflection moving magnetic technology, the electronic circuit board is arranged to drive the magnetic disk, so that the moving magnetic technology is miniaturized and consumes little power, and the prerequisite condition of combined application such as portability and wearability is achieved;
2. can be conveniently combined with various forms of external application therapy to generate a novel portable and wearable plantar reflex therapy technology, and is convenient for patients to use and operate.
Drawings
Fig. 1 is a cross-sectional view of a moving magnet therapeutic apparatus using the technique of moving magnet by foot sole reflection of the present invention;
FIG. 2 is a schematic circuit diagram of an electronic circuit board in a moving magnet therapeutic apparatus using the technique of moving magnet by foot sole reflection according to the present invention;
fig. 3 is a schematic view of the application method of the moving magnet therapeutic device and the drug application device of the present invention using the technique of moving magnet by foot sole reflection.
Reference numbers in the figures: 1. a housing; 2. a vertical shaft; 3. a rolling bearing; 4. a magnetic disk; 5. a magnetic sheet; 6. an electronic circuit board; 7. a coil; 8. a cavity.
Detailed Description
The following describes the embodiment of the present invention with 7 bodies with reference to the attached drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in figure 1: a movable magnetic treatment device adopting a plantar reflection movable magnetic technology comprises a plastic shell 1 applied to the skin of a human body, a raised vertical shaft 2 is arranged in the middle of the plastic shell 1, a miniature rolling bearing 3 is pressed into the vertical shaft 2, a magnetic disc 4 is arranged on the outer ring of the rolling bearing 3, even-number circular permanent magnetic sheets 5 are distributed on a concentric circle of the magnetic disc 4 at equal intervals, an electronic circuit board 6 for controlling the rotation of the magnetic disc 4 is installed at a gap above the magnetic disc 4, and a coil 7 is arranged at a position above the magnetic disc 4, which is used for ensuring the effect of cutting magnetic lines when the magnetic disc 4 rotates.
Further, a cavity 8 is arranged at one end of the shell 1, and a button battery for supplying power to the electronic circuit board 6 is arranged in the cavity 8, so that the size of the device can be further reduced.
Specifically, the device adopts a disk 4 with the diameter of 36mm, 4 circular neodymium iron boron permanent magnetic sheets 5 with the diameter of 8mm and the thickness of 1mm to be equidistantly distributed on a concentric circle with the diameter of 26mm on the disk 4, and the surface magnetic field intensity of the circular neodymium iron boron permanent magnetic sheets is 200 +/-20 gausses. The micro rolling bearing 3 with the outer ring diameter of 7mm and the inner ring diameter of 3mm is pressed in the center of the magnetic disc 4, and the inner ring of the rolling bearing 3 is pressed into the boss with the middle of 3mm of the shell 1, so that the magnetic disc 4 assembly can rotate freely. The electronic circuit board 6 is fixed above the magnetic disk 4 by the bayonet of the shell 1, and the distance between the electronic circuit board and the magnetic disk 4 is 1 mm. Self-adhesive coils 7 are adhered to the positions, corresponding to the concentric circles, of the magnetic sheets 5 above the circuit board, so that the coils 7 can cut magnetic lines of force and generate magnetic driving force when the magnetic disk 4 rotates.
The utility model discloses the pulsating magnetic field working method in the time-varying magnetic field classification is adopted to the moving magnetic mode. The magnetic source adopts flaky permanent magnetic sheets 5 which are arranged circumferentially in a synonym way and form a rotatable magnetic head together with the magnetic disk 4. An electronic circuit board 6 with a center tap is used as an electromagnetic induction and rotation driving component, and pulse current is output to an electromagnetic coil 7 through feedback of the electronic circuit board 6, so that electromagnetic driving force is generated between the coil 7 and a magnetic sheet 5 above the coil 7, and the magnetic head is driven to rotate.
Preferably, the electronic circuit board 6 is an electronic motor driving circuit composed of two-stage closed-loop coupled electromagnetic amplifiers, the electronic motor driving circuit is provided with a transistor Q1 and a transistor Q2, the bases of the transistor Q1 and the transistor Q2 are connected with an electrolytic capacitor C1 and an electrolytic capacitor C2 which couple the induced electromotive force generated when the coil 7 cuts the magnetic force line to the base of the transistor Q1, the collectors of the transistors Q1 and Q2 are connected to a coil 7L1 and a coil 7L2 which generate an electromagnetic force for driving the magnetic sheet 5 to rotate in the same direction to continuously rotate the magnetic sheet 4, the other ends of the coil 7L1 and the coil 7L2 are also connected with a light emitting diode LED for preventing the polarity of the battery E from being reversed to cause the over-current burning of the transistor, and meanwhile, the LED is also used as an electronic motor work instruction, the diode LED is connected with a battery E, and the battery E is connected with a starting switch K.
In the scheme, the transistor Q1 and the transistor Q2 are NPN type triodes 9014, the resistor R1 and the resistor R2 are 270K omega, the electrolytic capacitor C1 and the electrolytic capacitor C2 are 47 mu F, the light emitting diode LED is red, the tube voltage drops by about 1.5V under the working current of 3-5 mA for maintaining the rotation of the magnetic disc 4, and the light emitting diode LED flashes and emits light.
Preferably, a capacitor C3 for eliminating self-oscillation is arranged on the electronic motor driving circuit, which is beneficial to the self-starting of the electronic circuit board 6 after the starting switch K is powered on, and the negative feedback capacitor C3 is 0.22 muF.
Preferably, the housing 1 is provided with a medical adhesive tape fixing device, a bracket fixing device or other devices which can be combined and matched for use and fix the housing 1 and the skin of different positions of the human body.
Preferably, four magnetic sheets 5 are adopted in the scheme, but the magnetic sheets 5 can be increased or decreased or the magnetic sheets 5 with different magnetic field strengths can be replaced on the magnetic disc 4 according to different magnetic field energies or rotating speed requirements.
Preferably, the solution uses four magnetic sheets 5 in the shape of a disk, but at the same time the magnetic sheets 5 are cylindrical, square, spherical, bar-shaped or other types of structures.
Preferably, the driving circuit of the electronic circuit board 6 adopted in the present scheme is a simple basic architecture, and if various modes such as different rotation speeds, interval time, timing time and the like are required to work, other various circuits such as integrated circuit control and the like can be adopted.
In addition, the mechanism of the acupoint application therapy is further explained:
1. acupoint effect
The application is based on the theory of meridians and collaterals, as in acupuncture therapy.
The theory of meridians of traditional Chinese medicine considers that meridians have the functions of internally belonging to viscera, externally connecting with limbs, communicating with exterior and interior, and penetrating up and down, and are channels for ying, wei, qi and blood, circulation, going in and out, while the acupoints on meridians are junction points in qi-flowing channels, and the acupoints are closely related to viscera through meridians, thus not only reflecting the physiological functions and pathological states of various viscera of human body, but also being effective stimulation points for regulating qi, blood and yin and yang of viscera. No matter the disease enters from the outside or the disease grows from the inside, the channels and collaterals can not be left, the acupoint application therapy is applied, the medicine is applied on the skin acupoints and acts on the corresponding skin parts of the acupoints on the body surface, the medicine gas permeates to the channels and collaterals, the medicine acts on the internal organs through the conduction of the channels and the collaterals, and the treatment effects of correcting the excessive or weak state of yin and yang of the internal organs, improving the circulation of qi and blood of the channels and the collaterals, regulating the internal organs through the channels, strengthening the body resistance and eliminating pathogenic factors can be achieved through the stimulation of the medicine.
2. Medicinal effect
The TCM treatment is not limited to internal treatment and external treatment, but is guided by the theory of zang-fu organs and meridians. The internal treatment can treat internal and external diseases, and the external treatment can treat internal and external diseases as well, but the administration routes are different. The internal treatment administration can be delivered to the whole body to exert the drug effect after being absorbed by the digestive tract. The medicine for external treatment is applied to the body surface acupuncture points, the stimulation of the medicine can expand local blood vessels, accelerate blood circulation, promote the transdermal absorption of the medicine at local parts, and make the medicine penetrate through skin and hair and skin striae from the outside to the inside and play a stronger drug effect through the through running of meridians and collaterals. As described in \28729chowen: "surely take in the skin, penetrate through the flesh, absorb air and dissolve in the seepage", can also pass through the skin and directly reach the meridians, take in the body, dissolve in the body fluid, have a wonderful effect inside and outside consistently, with the compatible meaning of its medicines, can dispel the evil, expel toxin, inhibit the evil and eliminate the interior; has effects in strengthening body resistance, regulating ying and wei, regulating ascending and descending, coordinating yin and yang, and regulating five internal organs. Therefore, although the administration modes of internal treatment and external treatment are different, the internal treatment and external treatment have the function of returning to the health care and regulation of the body through different ways.
Compared with the prior art, the utility model discloses following technological effect has:
1. according to the foot bottom reflection moving magnetic technology, the magnetic disk 4 is driven by the electronic circuit board 6, so that the moving magnetic technology is miniaturized and has low power consumption, and the prerequisite condition of combined application such as portability and wearability is achieved;
2. can be conveniently combined with various forms of external application therapy to generate a novel portable and wearable plantar reflex therapy technology, and is convenient for patients to use and operate.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A moving magnet therapeutic device adopting a plantar reflex moving magnet technology is characterized in that: the magnetic disc cutting device comprises a shell applied to the skin of a human body, a raised vertical shaft is arranged in the middle of the shell, a rolling bearing is arranged on the vertical shaft, a magnetic disc is arranged on the outer ring of the rolling bearing, magnetic discs are distributed on the concentric circle of the magnetic disc at equal intervals, an electronic circuit board for controlling the rotation of the magnetic disc is arranged in a gap above the magnetic disc, and a coil is arranged above the magnetic disc at a position where the magnetic disc is ensured to cut magnetic lines of force when rotating.
2. The moving magnet therapeutic apparatus using the plantar reflex moving magnet technology according to claim 1, wherein: and a cavity is arranged at one end of the shell, and a button battery for supplying power to the electronic circuit board is arranged in the cavity.
3. The moving magnet therapeutic apparatus using the plantar reflex moving magnet technology according to claim 1, wherein: the electronic circuit board is an electronic motor driving circuit formed by two-stage closed-loop coupling electromagnetic amplifiers, the electronic motor driving circuit is provided with a transistor Q1 and a transistor Q2, bases of the transistor Q1 and the transistor Q2 are connected with an electrolytic capacitor C1 and an electrolytic capacitor C2 which couple induced electromotive force generated when a coil cuts magnetic lines to the base of the transistor Q1, collectors of the transistor Q1 and the transistor Q2 are connected with a coil L1 and a coil L2 which generate electromagnetic force for driving a magnetic sheet to rotate towards the same direction so that the magnetic sheet continuously rotates, the other ends of the coil L1 and the coil L2 are further connected with a diode LED, the diode LED is connected with a battery E, and the battery E is connected with a starting switch K.
4. The moving magnet therapeutic apparatus using the plantar reflex moving magnet technology according to claim 3, wherein: and a capacitor C3 for eliminating self-oscillation is arranged on the electronic motor driving circuit.
5. The moving magnet therapeutic apparatus using the plantar reflex moving magnet technology according to claim 1, wherein: the shell is provided with medical adhesive tape fixing and bracket fixing for fixing the shell and the skin of different positions of the human body.
6. The moving magnet therapeutic apparatus using the plantar reflex moving magnet technology according to claim 1, wherein: the magnetic disk can be increased or decreased or replaced with magnetic disks with different magnetic field strengths according to different magnetic field energies or rotating speed requirements.
7. The moving magnet therapeutic apparatus using the plantar reflex moving magnet technology according to claim 6, wherein: the magnetic sheet is in a round cake shape, a cylindrical shape, a square shape, a spherical shape or a strip-shaped structure.
CN202021130779.6U 2020-06-17 2020-06-17 Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology Expired - Fee Related CN213609428U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021130779.6U CN213609428U (en) 2020-06-17 2020-06-17 Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021130779.6U CN213609428U (en) 2020-06-17 2020-06-17 Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology

Publications (1)

Publication Number Publication Date
CN213609428U true CN213609428U (en) 2021-07-06

Family

ID=76620032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021130779.6U Expired - Fee Related CN213609428U (en) 2020-06-17 2020-06-17 Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology

Country Status (1)

Country Link
CN (1) CN213609428U (en)

Similar Documents

Publication Publication Date Title
CN107242971A (en) Ring of calming the nerves for treating insomnia
CN214971189U (en) Miniature dynamic magnetic system for medical instrument combination
CN213609428U (en) Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology
CN111672030A (en) Dynamic magnetic therapy device adopting plantar reflex dynamic magnetic technology
CN103893005B (en) A kind of intelligent abdominal part meridian point massage device
CN111888650A (en) Miniature dynamic magnetic scheme for medical instrument combination
CN202605540U (en) Natural magnetic massager improved structure
CN206324993U (en) Cervical-vertebra health care U-shaped circle
CN214050205U (en) Gyromagnetic pressure reducing instrument
CN1082370A (en) Electromagnetic shoe
CN214050204U (en) Gyromagnetic pressure reducing bed
CN113081735A (en) A gastroenteritis nursing device for gastroenterology
CN112972178A (en) Rotating magnetic colliding acupoint rotating magnetic moxibustion rapid blood pressure conditioning bed
CN204863929U (en) Neck brain health care utensil is treated to abnormal shape polypody traditional chinese medicine electromagnetism
CN207837858U (en) A kind of tranquilizing the mind ring for treating insomnia
CN201361364Y (en) Therapeutic electrode for electrotherapy apparatus
CN111973879A (en) Magnetic energy physical therapy method and device for simulating dynamic magnetic field
CN205598435U (en) TTS biological electricity intelligence physiotherapy equipment
CN2551271Y (en) Multifunctional physiotherapeutic apparatus
CN221579473U (en) Magnetic therapy massage device
CN201404439Y (en) Health-caring device for finger magnetotherapy
CN215961032U (en) Traditional chinese medical science internal medicine low limbs massage device of health institute in villages and towns
CN220459735U (en) Endocrine adjusting device
CN219398110U (en) Gastroenterology expands abdomen auxiliary treatment device
CN1022733C (en) Negative pressure magnetic hygienic therapeutic cupping

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210706

CF01 Termination of patent right due to non-payment of annual fee