CN110464311A - A kind of velocity of blood flow monitoring device and its method based on carotid stents - Google Patents
A kind of velocity of blood flow monitoring device and its method based on carotid stents Download PDFInfo
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- CN110464311A CN110464311A CN201910822111.3A CN201910822111A CN110464311A CN 110464311 A CN110464311 A CN 110464311A CN 201910822111 A CN201910822111 A CN 201910822111A CN 110464311 A CN110464311 A CN 110464311A
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- blood flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0031—Implanted circuitry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0285—Measuring or recording phase velocity of blood waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6862—Stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
- A61B5/6876—Blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7455—Details of notification to user or communication with user or patient ; user input means characterised by tactile indication, e.g. vibration or electrical stimulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7465—Arrangements for interactive communication between patient and care services, e.g. by using a telephone network
- A61B5/747—Arrangements for interactive communication between patient and care services, e.g. by using a telephone network in case of emergency, i.e. alerting emergency services
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
Abstract
The present invention relates to medical monitoring technical field, specially a kind of velocity of blood flow monitoring device and its method based on carotid stents, which includes carotid stents, flexible circuit board and external processing apparatus;The carotid stents are used as antenna, it is set on the flexible circuit board there are two integrated circuit, the mounting cylinder is that upper end is silent, can be apparent from the health status of itself, when narrow or blocking occurs for native blood vessel, accurate hemadostewnosis lesion locations can be provided for doctor;By the way that mounting cylinder is inserted into circular hole, so that annulus is attached on the wall of blood vessel, carotid stents and annulus are bonded through femoral arteriography by Minimally Invasive Surgery mode with vascular wall again and are fixed together, so that velocity of blood flow sensor and blood pressure sensor installation it is more convenient, it is more minimally invasive, and then reduce operation risk and complication.
Description
Technical field
The present invention relates to medical monitoring technical field, specially a kind of velocity of blood flow monitoring device based on carotid stents
And its method.
Background technique
Vascular diseases are in high-incidence situation in recent years, and blood vessel embolism is one of important diseases, and Etiological is dynamic in neck
The some lipid material accumulations of arteries and veins inner membrance cause arteria carotis chamber narrow, blood flow are made to be obstructed, lead to neck ischemic into white patch.
Carotid plaques are the performances of carotid atherosclerosis, are apt to occur in arteria carotis communis crotch, it is now recognized that with the elderly's ischemic
The generation of cerebral apoplexy is closely related.Its mechanism for causing cerebral arterial thrombosis may are as follows: patch increase causes arteria carotis caliber narrow
Cause encephalic Low perfusion and patch to fall off to form embolus, leads to entocranial artery embolism.
Clinically, it is measured by the morphology of stenosis and patch to arteria carotis, to comment carotid plaques
Valence judges its harmfulness.Carotid stents are to treat the important means of carotid artery embolism, and carotid stents intervention operation is completed
Afterwards, it needs to carry out periodic review, cannot monitor in real time.
Summary of the invention
For above-mentioned problem, the present invention provides a technical solution: a kind of velocity of blood flow prison based on carotid stents
Survey device, including carotid stents, flexible circuit board and external processing apparatus;Wherein,
The carotid stents are used as antenna, are set on the flexible circuit board there are two integrated circuit, described integrated
Circuit includes power supply module, mounting cylinder, flow sensor, pressure sensor, memory, data processor and the first radio-frequency receiving-transmitting
Module, the mounting cylinder are that upper end is silent, and the barreled structure of lower ending opening, the lower end for installing bucket is fixed through setting in blood vessel
On, two mounting cylinders are respectively fixedly disposed at vascular entrance and the exit of carotid stents, difference in the mounting cylinder
The flow sensor and the pressure sensor are installed, two flow sensors are arranged in carotid stents
At the entrance and exit of blood vessel, two pressure sensors are arranged in the entrance and exit of the blood vessel of carotid stents
Place, the power supply module are used for the power supply of integrated circuit, the velocity of blood flow that the memory detects the flow sensor
The blood pressure signal that signal and the pressure sensor detect is transmitted to the data processor, the data processor
Digital signal is converted by velocity of blood flow signal and blood pressure signal, and will be digital by first RF receiving and transmission module
Signal is transferred to the external processing apparatus through the carotid stents.
Preferably, annulus is fixedly connected on the lateral wall of the mounting cylinder, the annulus is integrally set with carotid stents
Meter, is placed in Carotid Atherosclerosis position for the device by way of Minimally Invasive Surgery, both can treat primary carotid artery stenosis,
It whether there is restenosis further through velocity of blood flow monitoring device detection blood vessel both ends.
Preferably, the external processing apparatus includes the second RF receiving and transmission module, processor, transmission module and work station,
Emit electromagnetic transmission energy from second RF receiving and transmission module to the intracorporal integrated circuit, while receiving intracorporal institute
It states integrated circuit and is sent to external velocity of blood flow signal and blood pressure signal, second RF receiving and transmission module will receive
Velocity of blood flow signal and blood pressure signal through the processor and transmission module be sent to the work station.
Preferably, the work station includes display module and alarm module, and the display module is for showing real-time blood
Flow velocity data and blood pressure data, the alarm modules exceed default threshold in velocity of blood flow data or blood pressure data
It is made a sound when value or vibration alarm.
Preferably, the carotid stents include more than two bracing structures and several longitudinal support structures, often
One bracing structure is formed by bending ring support by wire, passes through several friendships between adjacent two ring support
The longitudinal support structure of mistake setting is fixedly connected, and forms reticular structure after strutting bracket, the carotid stents by etc.
Two long section brackets are constituted, and one end of bracket described in every section is connect with an ic output, bracket described in every section
The other end be respectively arranged with insulating materials.
Preferably, the carotid stents are arranged as the resonance frequency f of antenna are as follows:
In formula, N is the quantity of ring support, n is waveform in ring support fluctuating quantity, l are longitudinal support structure
Length, C1, C2 and C3 are positive coefficient.
A kind of velocity of blood flow monitoring method based on carotid stents, comprising:
1) carotid stents are placed in arteria carotis by femoral artery puncture Minimally Invasive Surgery mode, while velocity of blood flow is passed
Sensor and blood pressure sensor installation in the blood vessels, then by flexible circuit board are arranged in extravascular, are received using the first radio frequency
Send out module and the second RF receiving and transmission module wireless connection, will include receiving antenna, the second RF receiving and transmission module, processor,
The external processing apparatus of transmission module and work station is connect with velocity of blood flow sensor, blood pressure sensor;
2) two flow sensors acquire the velocity of blood flow signal at carotid stents blood vessel both ends, two blood pressures respectively
Sensor acquires the blood pressure signal at carotid stents blood vessel both ends respectively, and respectively by corresponding data processor handle after
It is transmitted to the first RF receiving and transmission module, two first RF receiving and transmission modules lead to after being modulated respectively to received velocity of blood flow signal
It crosses antenna and is sent to external processing apparatus;
3) receiving antenna passes through the velocity of blood flow signal at the carotid stents blood vessel both ends received and blood pressure signal
It is sent to work station after second RF receiving and transmission module is demodulated and after processor is handled, display module is by real-time blood stream
Fast data and blood pressure data show, sending sound when velocity of blood flow data or blood pressure data exceed preset threshold
Sound or vibration alarm.
Compared with prior art, the beneficial effects of the present invention are: a kind of blood based on carotid stents of the present invention
Flow velocity monitoring device and its method, by the mutual cooperation of the elements such as flow sensor, pressure sensor and processor,
When the difference between the signal that two velocity of blood flow sensors detect has exceeded preset threshold value, handle at this time
Device judgement, which is equipped on the blood vessel of carotid stents, has occurred restenosis, and information is occurred to work by transmission module for processor
It stands, user is prompted to need to see a doctor in time;
When the signal that two blood pressure sensors detect has been more than preset threshold value, processor judgement is equipped with
Blood on the blood vessel of carotid stents is excessively high, and after prolonged blood is excessively high, processor is then judged as dynamic in non-mounting neck
Information is occurred by transmission module for this information for the case where blood vessels downstream of pulsation frame may have occurred blood vessel blockage, processor
To work station, user is prompted to need to see a doctor in time;
When the signal that two blood pressure sensors detect is lower than preset threshold value, processor judgement is equipped with neck
Hypopiesia on the blood vessel of arterial bracket, after prolonged blood is too low, processor, which is then judged as, is not installing arteria carotis
Information is arrived this information by transmission module by the case where blood vessel upstream of bracket may have occurred blood vessel blockage, processor
Work station prompts user to need to see a doctor in time;
When the difference between the signal that two blood pressure sensors detect has exceeded preset threshold value, locate at this time
Reason device judgement, which is equipped on the blood vessel of carotid stents, has occurred restenosis, and information is occurred to work by transmission module for processor
It stands, prompts user to need to see a doctor in time, whether the blood vessel for being equipped with carotid stents has occurred restenosis, can pass through
Velocity of blood flow sensor and blood pressure sensor double check, it is common to judge, it avoids judging by accident;
The health status of itself can be apparent from, when native blood vessel blocks, can also be provided for doctor compared with
For accurate blood vessel blockage position;
By the way that mounting cylinder to be inserted into circular hole, so that annulus is attached on vascular wall, narrow or blocking occurs in native blood vessel
When, accurate hemadostewnosis lesion locations can be provided for doctor;By the way that mounting cylinder to be inserted into circular hole, so that annulus pastes
Carotid stents and annulus are bonded fixation with vascular wall through femoral arteriography on the wall of blood vessel, then through Minimally Invasive Surgery mode
Together, so that velocity of blood flow sensor and blood pressure sensor installation it is more convenient, it is more minimally invasive, so reduce
Operation risk and complication device device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the velocity of blood flow monitoring device based on carotid stents of the present invention;
Fig. 2 is that installation bucket is mounted on the scheme of installation on carotid artery vascular in the present invention;
Fig. 3 is the schematic perspective view that bucket is installed in the present invention.
Specific embodiment
Below in conjunction with the attached drawing in embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clear
Chu is fully described by, it is clear that described embodiment is only some embodiments of the invention, rather than whole implementation
Mode.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution:
A kind of velocity of blood flow monitoring device based on carotid stents 500 of the present invention, including carotid stents
500, flexible circuit board and external processing apparatus;The carotid stents 500 are transmitted as antenna for ability and signal, described
Integrated circuit there are two setting on flexible circuit board, the integrated circuit includes power supply module, mounting cylinder 100, flow sensor
200, pressure sensor 300, memory, data processor and the first RF receiving and transmission module, the mounting cylinder 100 close for upper end
Mouthful, the barreled structure of lower ending opening, the lower end for installing bucket is fixed through being arranged on blood vessel, and two mounting cylinders 100 are distinguished
It is fixed at vascular entrance and the exit of carotid stents 500, the flow velocity is separately installed in the mounting cylinder 100 and is passed
Sensor 200 and the pressure sensor 300, two flow sensors 200 are arranged in the blood vessel of carotid stents 500
Entrance and exit at, two pressure sensors 300 are arranged in the entrance and exit of the blood vessel of carotid stents 500
Place, the power supply module are used for the power supply of integrated circuit, the blood stream that the memory detects the flow sensor 200
The blood pressure signal that fast signal and the pressure sensor 300 detect is transmitted to the data processor, the data
Velocity of blood flow signal and blood pressure signal are converted digital signal by processor, and passes through first RF receiving and transmission module
Digital signal is transferred to the external processing apparatus through the carotid stents 500;Wherein, the data processor can be adopted
The NRF51822 chip produced with NORDIC company.
As one embodiment of the present invention, annulus 400, institute are fixedly connected on the lateral wall of the mounting cylinder 100
It states and is fixedly connected with annulus 400 on the lateral wall of mounting cylinder 100, the annulus 400 is integrally designed with carotid stents 500, is led to
The device is placed in Carotid Atherosclerosis position by the mode for crossing Minimally Invasive Surgery, not only can treat primary carotid artery stenosis, but also logical
Velocity of blood flow monitoring device detection blood vessel both ends are crossed with the presence or absence of restenosis.
As one embodiment of the present invention, the external processing apparatus include the second RF receiving and transmission module, processor,
Transmission module and work station emit electromagnetic transmission energy from second RF receiving and transmission module to the intracorporal integrated circuit
Amount, while receiving the intracorporal integrated circuit and being sent to external velocity of blood flow signal and blood pressure signal, described second
RF receiving and transmission module sends the velocity of blood flow signal received and blood pressure signal through the processor and transmission module
To the work station, processor is for judging velocity of blood flow signal and blood pressure signal;
When the difference between the signal that two velocity of blood flow sensors 200 detect has exceeded preset threshold value, at this time
Processor judgement, which is equipped on the blood vessel of carotid stents 500, has occurred restenosis, and processor is sent out information by transmission module
It is raw to arrive work station, prompt user to need to see a doctor in time;
When the signal that two blood pressure sensors 300 detect has been more than preset threshold value, processor judgement peace
Blood on blood vessel equipped with carotid stents 500 is excessively high, and after prolonged blood is excessively high, processor, which is then judged as, is not pacifying
The case where blood vessels downstream of dress carotid stents 500 may have occurred blood vessel blockage, this information is passed through transmission module by processor
Information is occurred to work station, user is prompted to need to see a doctor in time;
When the signal that two blood pressure sensors 300 detect is lower than preset threshold value, processor judgement installation
There is the hypopiesia on the blood vessel of carotid stents 500, after prolonged blood is too low, processor, which is then judged as, not to be installed
The case where blood vessel upstream of carotid stents 500 may have occurred blood vessel blockage, processor will by transmission module by this information
Information occurs to work station, and user is prompted to need to see a doctor in time;
When the difference between the signal that two blood pressure sensors 300 detect has exceeded preset threshold value, this
When processor judgement be equipped on the blood vessel of carotid stents 500 restenosis have occurred, processor is by transmission module by information
Occur to work station, prompts user to need to see a doctor in time, it is narrow whether the blood vessel for being equipped with carotid stents 500 has occurred again
It is narrow, can be common to judge by 300 double check of velocity of blood flow sensor 200 and blood pressure sensor, it avoids judging by accident.
As one embodiment of the present invention, the work station includes display module and alarm module, the display mould
Block is for showing real-time velocity of blood flow data and blood pressure data, and the alarm modules are in velocity of blood flow data or blood
Pressure data makes a sound when exceeding preset threshold or vibration alarm, work station can run on smart phone, smartwatch, intelligence
On the energy smart machines such as bracelet or intelligence AR glasses.
As one embodiment of the present invention, the carotid stents 500 include more than two bracing structures
With several longitudinal support structures, each bracing structure is formed by bending ring support by wire, described in adjacent two
It is fixedly connected between ring support by several longitudinal support structures being staggered, forms netted knot after strutting bracket
Structure, the carotid stents 500 are made of two isometric section brackets, one end of bracket described in every section with an integrated circuit
Output end connects, and the other end of bracket described in every section is respectively arranged with insulating materials.
Preferably, the carotid stents 500 are arranged as the resonance frequency f of antenna are as follows:
In formula, N is the quantity of ring support, n is waveform in ring support fluctuating quantity, l are longitudinal support structure
Length, C1, C2 and C3 are positive coefficient, in use, due to the size for being unable to adjust carotid stents 500, so by adjusting
The length l of the fluctuating quantity n of waveform and longitudinal support structure adjusts antenna in the quantity N of ring support, ring support
Resonance frequency.
A kind of velocity of blood flow monitoring method based on carotid stents 500, detailed process include:
1) when the carotid artery stenosis of patient is more than 50%, by femoral artery puncture Minimally Invasive Surgery mode by carotid stents
500 are placed in arteria carotis, can reach expansion blood vessel after placing carotid stents 500, lead to the purpose of blood flow again, while by blood
Flow sensor 200 and the installation of blood pressure sensor 300 in the blood vessels, then by flexible circuit board are arranged in extravascular, benefit
It will include receiving antenna, the second radio-frequency receiving-transmitting with the wireless connection of the first RF receiving and transmission module and the second RF receiving and transmission module
Module, processor, transmission module and work station external processing apparatus and velocity of blood flow sensor 200, blood pressure sensor
300 connections;Carotid stents 500 are placed in inside arteria carotis by Minimally Invasive Surgery, flexible circuit board can be placed in it is subcutaneous or
In vitro, achieve the purpose that reduce wound, while flexible circuit board may be designed in micro-nano chip, it is dynamic to be individually fixed in neck
500 both ends of pulsation frame and middle part reach detection restenosis because restenosis is most common at three positions of carotid stents 500
Purpose, the cost of this mode is higher, but wound is smaller, with clinical application practicality, specific mounting means is herein
Without limitation;
2) two flow sensors 200 acquire the velocity of blood flow signal at 500 blood vessel both ends of carotid stents, two blood respectively
Hydraulic force snesor 300 acquires the blood pressure signal at 500 blood vessel both ends of carotid stents respectively, and passes through corresponding data respectively
It is transmitted to the first RF receiving and transmission module after processor processing, two first RF receiving and transmission modules distinguish received velocity of blood flow signal
External processing apparatus is sent to by antenna after being modulated;
3) receiving antenna is by the velocity of blood flow signal and blood pressure signal at the 500 blood vessel both ends of carotid stents received
It is sent to work station after the second RF receiving and transmission module is demodulated and after processor is handled, display module is by real-time blood
Flow speed data and blood pressure data show that velocity of blood flow data or blood pressure data issue when exceeding preset threshold
Sound or vibration alarm.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction executing device with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect
It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Although hereinbefore invention has been described by reference to embodiment, the scope of the present invention is not being departed from
In the case where, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as being not present
Structural conflict, the various features in presently disclosed embodiment can be combined with each other use by any way, In
The description for not carrying out exhaustive to the case where these combinations in this specification is examined merely for the sake of omission length with what is economized on resources
Consider.Therefore, the invention is not limited to specific embodiments disclosed herein, but the institute including falling within the scope of the appended claims
There is technical solution.
Claims (7)
1. a kind of velocity of blood flow monitoring device based on carotid stents, which is characterized in that including carotid stents, flexible circuit
Plate and external processing apparatus;Wherein,
The carotid stents are used as antenna, are set on the flexible circuit board there are two integrated circuit, the integrated circuit
Including power supply module, mounting cylinder, flow sensor, pressure sensor, memory, data processor and the first radio-frequency receiving-transmitting mould
Block, the mounting cylinder are that upper end is silent, the barreled structure of lower ending opening, and the lower end for installing bucket is fixed through setting on blood vessel,
Two mounting cylinders are respectively fixedly disposed at vascular entrance and the exit of carotid stents, install respectively in the mounting cylinder
There are the flow sensor and the pressure sensor, two flow sensors are arranged in the blood vessel of carotid stents
Entrance and exit at, at the entrance and exit for the blood vessel that two pressure sensors are arranged in carotid stents, institute
State power supply module for integrated circuit power supply, the velocity of blood flow signal that the memory detects the flow sensor with
And the blood pressure signal that detects of the pressure sensor is transmitted to the data processor, the data processor is by blood
Flow velocity signal and blood pressure signal are converted into digital signal, and are passed through digital signal by first RF receiving and transmission module
The carotid stents are transferred to the external processing apparatus.
2. a kind of velocity of blood flow monitoring device based on carotid stents according to claim 1, it is characterised in that: described
Annulus is fixedly connected on the lateral wall of mounting cylinder, the annulus and carotid stents are integrally designed, and pass through the side of Minimally Invasive Surgery
The device is placed in Carotid Atherosclerosis position by formula, both can treat primary carotid artery stenosis, has been detected further through velocity of blood flow
Device, which detects blood vessel both ends, whether there is restenosis.
3. a kind of velocity of blood flow monitoring device based on carotid stents according to claim 1, it is characterised in that: described
External processing apparatus includes the second RF receiving and transmission module, processor, transmission module and work station, by the second radio-frequency receiving-transmitting mould
Block emits electromagnetic transmission energy to the intracorporal integrated circuit, at the same receive the intracorporal integrated circuit be sent to it is external
Velocity of blood flow signal and blood pressure signal, the velocity of blood flow signal and blood that second RF receiving and transmission module will receive
Hydraulic force signal is sent to the work station through the processor and transmission module.
4. a kind of velocity of blood flow monitoring device based on carotid stents according to claim 3, it is characterised in that: described
Work station includes display module and alarm module, and the display module is for showing real-time velocity of blood flow data and blood pressure
Force data, the alarm modules make a sound or vibrate police when velocity of blood flow data or blood pressure data exceed preset threshold
Report.
5. a kind of velocity of blood flow monitoring device based on carotid stents according to claim 1, it is characterised in that: described
Carotid stents include more than two bracing structures and several longitudinal support structures, and each bracing structure is equal
Ring support is formed by bending by wire, passes through several longitudinal bracings being staggered between adjacent two ring support
Structure is fixedly connected, and reticular structure is formed after strutting bracket, and the carotid stents are made of two isometric section brackets, every section
One end of the bracket is connect with an ic output, and the other end of bracket described in every section is respectively arranged with insulation
Material.
6. a kind of velocity of blood flow monitoring device based on carotid stents according to claim 1, it is characterised in that: described
Carotid stents are arranged as the resonance frequency f of antenna are as follows:
In formula, the fluctuating quantity that N is the quantity of ring support, n is waveform in ring support, the length that l is longitudinal support structure,
C1, C2 and C3 are positive coefficient.
7. one kind is based on velocity of blood flow monitoring method as described in any one of claims 1-9 characterized by comprising
1) carotid stents are placed in arteria carotis by femoral artery puncture Minimally Invasive Surgery mode, while by velocity of blood flow sensor
It in the blood vessels, then by flexible circuit board is arranged in extravascular with blood pressure sensor installation, utilizes the first radio-frequency receiving-transmitting mould
The wireless connection of block and the second RF receiving and transmission module will include receiving antenna, the second RF receiving and transmission module, processor, transmission
The external processing apparatus of module and work station is connect with velocity of blood flow sensor, blood pressure sensor;
2) two flow sensors acquire the velocity of blood flow signal at carotid stents blood vessel both ends, two blood pressure sensings respectively
Device acquires the blood pressure signal at carotid stents blood vessel both ends respectively, and transmits after being handled respectively by corresponding data processor
To the first RF receiving and transmission module, two first RF receiving and transmission modules pass through day after being modulated respectively to received velocity of blood flow signal
Line is sent to external processing apparatus;
3) receiving antenna is by the velocity of blood flow signal at the carotid stents blood vessel both ends received and blood pressure signal through second
It is sent to work station after RF receiving and transmission module is demodulated and after processor is handled, display module is by real-time velocity of blood flow number
Accordingly and blood pressure data are shown, velocity of blood flow data or blood pressure data made a sound when exceeding preset threshold or
Vibration alarm.
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