CN216725522U

CN216725522U - Vomiting preventing device for percutaneous electrical stimulation

Info

Publication number: CN216725522U
Application number: CN202122742562.1U
Authority: CN
Inventors: 沈平
Original assignee: Jinzhunlixing Shanghai Medical Technology Co ltd
Current assignee: Jinzhunlixing Shanghai Medical Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-06-14
Anticipated expiration: 2031-11-10

Abstract

An antiemetic device for transcutaneous electrical stimulation comprising: the neck electrode plate is magnetically attracted with the host; a neck electrode pad, comprising: the conductive adhesive layer is used for adhering skin to conduct electricity, and the magnetic interface is used for magnetically attracting the solid magnetic conductor; after the host machine and the neck electrode plate are combined by magnetic attraction, the neck electrode plate is adhered to the skin of the first and second cervical vertebrae or the occiput area of the human body; a host, comprising: the shell and hold the electro photoluminescence generation unit in the shell, wherein, electro photoluminescence generation unit includes: the device comprises a main control circuit, a communication unit, a stimulation current amplification unit and a neck electrode plate monitoring circuit, wherein the communication unit, the stimulation current amplification unit and the neck electrode plate monitoring circuit are electrically connected with the main control circuit; the neck electrode plate monitoring circuit is connected with the stimulating current amplifying unit and the solid magnetic conductor. The utility model has the advantages of no need of operation, adjustable stimulation position and electric stimulation scheme, higher safety and low cost.

Description

Vomiting preventing device of percutaneous electrostimulation

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an anti-vomiting device for percutaneous electrical stimulation.

Background

The PONV accounts for 20% -37% of all hospitalized patients, the incidence rate of major surgery reaches 35% -50%, and the incidence rate of PONV of high risk patients reaches 70% -80%.

PONV generation mechanism: the central vomiting center is located above the four ventral ventrolateral posterolateral (area postrem) chemotrigger zone (CTZ) and the nucleus solitarius. In fact, multiple nuclei located in the brainstem are involved in the emission of effector signals, including the small cell network, the Botzinger complex and the solitary bundle nucleus. Chemical Trigger Zone (CTZ) comprises 5-HT₃、5-HT₄Various sites of action related to nausea and vomiting, such as opioid receptors, cholinergic receptors, cannabinoid receptors, dopamine receptors, etc., are located outside the blood-brain barrier of the basal plane of the fourth ventricle, and CTZ projects to the vomiting center through nerves to cause vomiting. In addition to CTZ, there are three pathways that nerve signals excite the vomiting center: 1. the medicine directly or indirectly stimulates mucous membrane of stomach or near small intestine, so that enterochromaffin cells release neurotransmitter to stimulate afferent fibers of vagus nerve and visceral nerve on intestinal wall, directly transmit signals to vomiting central nerve nucleus or initiate vomiting reflex through CTZ. 2. Afferent signals from the vestibular system stimulate the vomiting center. 3. Direct stimulation from the central nervous system triggers emesis.

At present, the main drugs are used for preventing and treating nausea and vomiting. Antiemetic drugs can be classified into the following types: acting on one or more of the cortex, the vomiting center, the vomiting chemical trigger zone, or the visceral afferent nerves. However, certain side effects are inevitably brought about by drug treatment, such as the adverse reactions of hypersomnia, urine retention, dry mouth, mental confusion and the like caused by histamine receptor antagonist, 5-HT₃Liver function damage, dry stool, abdominal distension, etc. caused by receptor antagonists. In addition to drug therapy, acupressure, aromatherapy, acupuncture and moxibustion, and transdermal electrical stimulation have good effects on PONV.

Disclosure of Invention

The utility model aims to provide an anti-vomiting device which can be directly and integrally pasted on an affected part and can carry out wearable electrical stimulation.

The utility model is realized by the following steps:

an antiemetic device for transcutaneous electrical stimulation comprising: the neck electrode plate is magnetically attracted with the host;

the neck electrode sheet includes: the conductive adhesive layer is used for adhering skin to conduct electricity, and the magnetic interface is used for magnetically attracting the solid magnetic conductor;

after the host and the neck electrode plate are combined through magnetic attraction, the neck electrode plate is adhered to the skin of a first cervical vertebra area of a human body;

the host, comprising: the electric stimulation generating unit comprises a shell and an electric stimulation generating unit contained in the shell, wherein the electric stimulation generating unit comprises: the device comprises a main control circuit, and a communication unit, a stimulation current amplification unit and a neck electrode plate monitoring circuit which are electrically connected with the main control circuit; the neck electrode plate monitoring circuit is connected with the stimulating current amplifying unit and the solid magnetic conductor;

the housing, on a surface thereof: an interface for connecting the solid magnetic conductor and a communication interface for connecting the communication unit.

Further, the master control circuit includes: the device comprises an MCU (microprogrammed control Unit), a charging and communication interface, a lithium ion charging circuit, a power management circuit, a booster circuit, a current detection circuit, a stimulus generator, a stimulus current output interface, an overcurrent protection circuit, an open-circuit detection circuit, a communication interface chip, a key, an indicator lamp, a sampling logic generator and a sampling holding circuit; the MCU is respectively connected with the power management circuit, the booster circuit, the overcurrent protection circuit, the open circuit detection circuit, the sampling logic generator, the communication interface chip, the key and the indicator light; the lithium ion charging circuit is respectively connected with the power management circuit and the charging and communication interface; the communication interface chip is also connected with the charging and communication interface; the current detection circuit is respectively connected with the boosting circuit, the sampling and holding circuit and the stimulation generator; the sampling hold circuit is also respectively connected with the overcurrent protection circuit, the open-circuit detection circuit and the sampling logic generator; the stimulation generator is also connected with the stimulation current output interface.

Further, the frequency is continuously adjustable at 0-20kHz, and the low frequency is continuously adjustable at 0-200 Hz.

Further, the host further includes: and a charging circuit connecting the charging connector and a rechargeable internal power supply including a lithium battery with a battery protection circuit.

Further, the housing is formed by plastic molding or metal processing, and the total volume of the housing is less than 50 cubic centimeters; the solid magnetic conductor is made of neodymium iron boron materials, and the thickness of the solid magnetic conductor is not more than 8 mm.

Further, the communication unit includes: bluetooth or WIFI.

Further, the host is connected with an upper computer, and the upper computer comprises a mobile phone, a tablet personal computer, other personal terminals or a cloud server.

Further, a hydrophobic wave with a frequency of 2/100Hz was selected for electrical stimulation.

The utility model has the advantages that: the operation is not needed, the stimulation position and the electric stimulation scheme are adjustable, the safety is higher, and the cost is low. The electrode plate falling monitoring function of the neck is achieved, and accidental safety risks are prevented.

Drawings

The utility model will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a functional block diagram of a master control circuit in an embodiment of the utility model.

Detailed Description

As shown in fig. 1, an anti-emesis device for transcutaneous electrical stimulation includes: the device comprises a main machine 1 and a neck electrode plate 2 magnetically attracted by the main machine 1. Neck electrode slice 2, includes: a conductive adhesive layer for adhering skin to conduct electricity and a magnetic interface for magnetically attracting the solid magnetic conductor. After the main machine 1 and the neck electrode plate 2 are combined through magnetic attraction, the neck electrode plate 2 is adhered to the skin of a first cervical vertebra area of a human body.

Host 1, comprising: a housing 11 and an electrical stimulation generation unit accommodated in the housing 11, wherein the electrical stimulation generation unit includes: the device comprises a main control circuit 12, a communication unit 13, a stimulation current amplification unit 14 and a neck electrode plate monitoring circuit 15, wherein the communication unit 13, the stimulation current amplification unit 14 and the neck electrode plate monitoring circuit are electrically connected with the main control circuit 12; the neck electrode plate monitoring circuit 15 is connected with the stimulation current amplifying unit 14 and the solid magnetic conductor.

A housing 11 having disposed on a surface thereof: an interface for connecting the solid magnetic conductor and a communication interface for connecting the communication unit 13.

As shown in fig. 2, the main control circuit 12 includes: the device comprises an MCU (microprogrammed control unit), a charging and communication interface, a lithium ion charging circuit, a power management circuit, a booster circuit, a current detection circuit, a stimulus generator, a stimulus current output interface, an overcurrent protection circuit, an open-circuit detection circuit, a communication interface chip, a key, an indicator lamp, a sampling logic generator and a sampling holding circuit; the MCU is respectively connected with the power management circuit, the booster circuit, the overcurrent protection circuit, the open circuit detection circuit, the sampling logic generator, the communication interface chip (485 communication is adopted in the embodiment), the key and the indicator light; the lithium ion charging circuit is respectively connected with the power management circuit and the charging and communication interface; the communication interface chip is also connected with the charging and communication interface; the current detection circuit is respectively connected with the boosting circuit, the sampling and holding circuit and the stimulation generator; the sampling hold circuit is also respectively connected with the overcurrent protection circuit, the open-circuit detection circuit and the sampling logic generator; the stimulation generator is also connected with the stimulation current output interface.

Wherein, the charging and communication interface uses a non-exposed blade type battery charging interface;

the lithium ion charging circuit realizes a charging function;

the power management circuit realizes the functions of battery low-voltage protection, real-time clock power supply, battery hardware overcurrent protection and the like;

the boost circuit realizes the voltage program control boost function of the single-section lithium battery;

a current detection circuit for monitoring the output current of the battery;

the stimulation generator modulates the low-frequency waveform to the intermediate-frequency electric pulse by utilizing the MOS tube array and a related control circuit;

a stimulation current output interface: using a magnetic buckle as a stimulation current output interface;

the overcurrent protection circuit: the device is used for preventing the damage of an internal circuit caused by the short circuit of the stimulation output circuit, stopping stimulation output when overcurrent occurs, and sending an alarm sound by the buzzer;

open circuit detection circuit: the device is used for detecting the communication state of the stimulation output electrode and a human body, and when an open circuit occurs, the output is stopped, and the buzzer sends out an alarm sound;

MCU (master control chip): STM32 ultra-low power consumption, high performance

Kernel CPU

Pressing a key: comprises a power key, an emergency stop key and a stimulation intensity adjusting key.

An indicator light: the device comprises a working state indicator light, a battery state indicator light, a stimulation output intensity indicator light and a fault indicator light.

The host 1 is further connected with an upper computer, and the upper computer comprises a mobile phone, a tablet personal computer, other personal terminals or a cloud server. The host computer is used for managing the joint protection vomiting device.

The neck electrode plate 2 with the magnetic joint has the function of being adhered to the skin of the first cervical vertebra region, and can fix the host 1 after being attracted and connected with the solid magnetic conductor on the host 1, so that the host 1 and the neck electrode plate 2 are combined and adhered to the skin to achieve the wearable function. The main machine 1 is internally provided with a neck electrode plate monitoring circuit for monitoring loop resistance, and once the neck electrode plate falls off from a human body to cause overlarge loop resistance, the main control unit immediately interrupts or stops current output so as to ensure safety.

When in use, the intermediate frequency is continuously adjustable at 0-20kHz, and the low frequency is continuously adjustable at 0-200 Hz.

Transcutaneous Electrical Nerve Stimulation (TENS) is a method of inputting a pulse current of a specific frequency into a human body through the skin surface to relieve the symptoms of pain, etc. At present, the technology is widely applied to clinical treatment, such as relieving pain (childbirth pain, chronic lumbago, chronic pelvic pain, migraine and the like), treating insomnia, rehabilitation training of hemiplegia patients with cerebral apoplexy, treating dysphagia after cerebral apoplexy and the like, and has no toxic or side effect by a simple, non-invasive and non-drug treatment method.

The utility model has the advantages of compact structure, small volume, light weight, convenient operation, low cost, safety and reliability.

Claims

1. An antiemetic device with transcutaneous electrical stimulation, comprising: the method comprises the following steps: the neck electrode plate is magnetically attracted with the host;

after the host and the neck electrode plate are combined through magnetic attraction, the neck electrode plate is adhered to the skin of the first cervical vertebra, the second cervical vertebra or the occiput area of the human body;

the host includes: the electrical stimulation generating device comprises a shell and an electrical stimulation generating unit accommodated in the shell, wherein the electrical stimulation generating unit comprises: the device comprises a main control circuit, and a communication unit, a stimulation current amplification unit and a neck electrode plate monitoring circuit which are electrically connected with the main control circuit; the neck electrode plate monitoring circuit is connected with the stimulating current amplifying unit and the solid magnetic conductor;

2. The anti-emetic device of transcutaneous electrical stimulation of claim 1, wherein:

the master control circuit comprises: the device comprises an MCU (microprogrammed control Unit), a charging and communication interface, a lithium ion charging circuit, a power management circuit, a booster circuit, a current detection circuit, a stimulus generator, a stimulus current output interface, an overcurrent protection circuit, an open-circuit detection circuit, a communication interface chip, a key, an indicator lamp, a sampling logic generator and a sampling holding circuit; the MCU is respectively connected with the power management circuit, the booster circuit, the overcurrent protection circuit, the open circuit detection circuit, the sampling logic generator, the communication interface chip, the key and the indicator light; the lithium ion charging circuit is respectively connected with the power management circuit and the charging and communication interface; the communication interface chip is also connected with the charging and communication interface; the current detection circuit is respectively connected with the boosting circuit, the sampling and holding circuit and the stimulation generator; the sampling hold circuit is also respectively connected with the overcurrent protection circuit, the open-circuit detection circuit and the sampling logic generator; the stimulation generator is also connected with the stimulation current output interface.

3. An antiemetic device by transcutaneous electrical stimulation as claimed in claim 1 or 2, wherein: the medium frequency is continuously adjustable at 0-20kHz, and the low frequency is continuously adjustable at 0-200 Hz.

4. A transdermal electro-stimulation anti-emesis device as claimed in claim 1 or claim 2, wherein: the host computer further comprises: and a charging circuit connecting the charging connector and a rechargeable internal power supply including a lithium battery with a battery protection circuit.

5. An antiemetic device by transcutaneous electrical stimulation as claimed in claim 1 or 2, wherein: the housing is formed by plastic molding or metal processing, and the total volume of the housing is less than 50 cubic centimeters; the solid magnetic conductor is made of neodymium iron boron materials, and the thickness of the solid magnetic conductor is not more than 8 mm.

6. An antiemetic device by transcutaneous electrical stimulation as claimed in claim 1 or 2, wherein: the communication unit includes: bluetooth or WIFI.

7. An antiemetic device by transcutaneous electrical stimulation as claimed in claim 1 or 2, wherein: the host is further connected with an upper computer, and the upper computer comprises a mobile phone, a tablet personal computer, a personal terminal or a cloud server.

8. An antiemetic device by transcutaneous electrical stimulation as claimed in claim 1 or 2, wherein: electrical stimulation was performed by selecting a hydrophobic wave with a frequency of 2/100 Hz.