CN114916922A - Left atrium hemodynamics monitoring system for intensive care unit - Google Patents

Abstract

The invention provides a left atrial hemodynamic monitoring system for an intensive care unit, which belongs to the technical field of health monitoring. The monitoring system includes a patient end and a nursing end, and the patient end includes a data storage component, an implantable sensor, a wire, and a wireless transmission unit; the implanted sensor is used to collect left atrial state data and transmit it to the data storage component through the wire, and the data is sent to the data storage component. The storage component is forwarded to the nursing end; the implantable sensor is configured with an anchoring device, and the size of the anchoring device can be adjusted; the nursing end performs kinetic analysis according to the first preset cycle, and switches the implantation according to the result of the kinetic analysis The acquisition mode of the sex sensor. The data storage component stores the state data using a circular stack. The hemodynamic monitoring system proposed by the present invention can be used for left atrial state monitoring of patients in the intensive care unit, and can adjust the monitoring mode adaptively, making data monitoring more targeted while ensuring the health of patients.

Description

A left atrial hemodynamic monitoring system for intensive care unit

technical field

The invention belongs to the technical field of health monitoring, in particular to a left atrial hemodynamic monitoring system for an intensive care unit.

Background technique

In clinical medicine, it is necessary to collect hemodynamic information in the left atrium of the heart in many situations. The conventional monitoring method is to enter a catheter for measurement from the superior vena cava, and extend one end of the catheter into the left atrium, and connect it with the left atrium. The intracardiac tissue of the left atrium is simply sutured and fixed, and it is directly pulled out after use, which is prone to bleeding and may cause unsafe accidents.

In addition, it has been reported that elevated left atrial pressure is also a characteristic manifestation of cardiac decompensation, and there is a lack of clinical indicators to accurately assess left atrial pressure. Direct measurement of left atrial pressure is helpful for early detection and treatment of chronic heart failure, such as left atrial pressure. Atrial pressure monitoring device HeartPOD. However, when this device is used in patients with chronic heart failure, most of it is aimed at the patients' ordinary clinical or remote home environment, the working mode is single, and the parameters of the entire working state cannot be adjusted according to the actual situation of different patients. Once adjusted, it cannot be changed again, that is, it is in a fixed state. In the prior art, there are simpler left atrial hemodynamic monitoring devices for use in intensive care units, such as utility model patent CN213940726U.

However, in the clinical critical environment, especially in the intensive care unit environment, the patient's heart rate and breathing state may change significantly at any time, resulting in changes in the real-time atrial septal thickness. The anchoring device cannot be adjusted in time, and the acquisition mode of the sensor cannot be dynamically adjusted for feedback, resulting in the above-mentioned implantable left ventricular pressure monitoring device, which cannot be applied to the continuous whole-process monitoring of the clinical intensive care unit environment.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention proposes a left atrial hemodynamic monitoring for intensive care unit, which can adjust the monitoring mode adaptively, and make data monitoring more targeted while ensuring the health of patients.

The technical scheme of the present invention is composed of a patient end and a nursing end, wherein:

The patient terminal is installed on the patient in the intensive care unit, and communicates with the nursing terminal;

Specifically, the patient end may be a wearable device component.

The patient end includes a data storage component, an implantable sensor, a wire, and a wireless transmission unit;

The implantable sensor is used for collecting left atrial state data, and transmitting the state data to the data storage component through the wire, and forwarded by the data storage component to the nursing end;

the implantable sensor is configured with an anchoring device, the anchoring device is adjustable in size;

After receiving the state data forwarded by the patient terminal, the nursing terminal performs kinetic analysis according to a first preset period, and switches the acquisition mode of the implantable sensor according to the result of the kinetic analysis.

In the present invention, different collection modes correspond to different collection mode parameter settings;

The acquisition mode parameter is one of the following or any combination thereof:

The single acquisition time of the implantable sensor, the combination of collected state data, and the set size of the anchoring device;

The left atrial state data includes left atrial pressure, left atrial body temperature, intracardiac electrogram, and sensor acquisition time.

As an improvement, the data storage component includes a state data preprocessing unit;

The data storage component forwards the state data to the nursing terminal after performing preprocessing by the state data preprocessing unit.

The monitoring system is powered by a wireless radio frequency transmission system.

In one aspect, after receiving the state data forwarded by the patient terminal, the nursing terminal performs a kinetic analysis according to a first preset period, and switches the acquisition of the implantable sensor according to the result of the kinetic analysis mode, including:

Receive k pieces of left atrial pressure sampling data {P ₁ , P ₂ ,...P _k } and k pieces of left atrial body temperature sampling data {T ₁ , T ₂ , ...T _k }, k >2;

Calculate the left atrial pressure-left atrial temperature matching change value PT according to the fitting relation f;

Among them, PT=f(P _s ,T _s ,W,M,T);

P _s is a pressure data set composed of k left atrial pressure sampling data;

T _s is a body temperature data set composed of k left atrial body temperature sampling data;

M is the size value of the anchoring device set in the first preset period;

W is the BMI index of the patient;

T is the length of the first preset period;

judging whether the difference between the left atrial pressure-left atrial body temperature matching change value PT and the preset standard value ST is within a predetermined range;

If yes, increase the sensor acquisition duration and the first preset period.

If not, reduce the sensor acquisition duration and the first preset period, and if the state data forwarded by the patient end received by the nursing end does not include the ECG data, the The nursing terminal notifies the nursing staff to adjust the acquisition mode of the implantable sensor, so that the implantable sensor synchronously acquires the left atrial pressure, the left atrial temperature, and the intracardiac electrogram.

In another aspect, after receiving the state data forwarded by the patient terminal, the nursing terminal performs kinetic analysis according to a first preset period, and switches the implantable sensor according to the result of the kinetic analysis. Collection mode, including:

receiving the current intracardiac electrogram curve Scur within the first preset period forwarded by the patient terminal, where the current intracardiac electrogram curve Scur includes a plurality of sampling points;

Perform sampling point matching on the current intracardiac electrogram curve Scur with the previous intracardiac electrogram curve Spre received and forwarded by the patient end last time;

If the sampling points exceeding the first preset number cannot be matched, the nursing end informs the nursing staff to adjust the size of the anchoring device.

If the sampling points exceeding the first preset number can be matched, the acquisition mode of the implantable sensor is switched, so that the implantable sensor collects the left atrial pressure and the left atrial body temperature in the first time period, While the intracardiac electrogram is acquired in a second time period, the first time period is different from the second time period.

As a further improvement of the present invention, the data storage component uses a ring stack to store the state data.

Specifically, the ring stack includes a first-layer ring stack, a second-layer ring stack, and a third-layer ring stack;

The first-layer ring stack is used to store left atrial pressure data;

The second-layer ring stack is used to store left atrial body temperature data;

The third-layer ring stack is used to store intracardiac electrocardiogram data;

The third layer ring stack is the innermost layer ring stack.

When one of the first-layer ring stack or the second-layer ring stack is full,

The data storage component forwards the status data to the care end.

The hemodynamic monitoring system proposed by the present invention can be used to monitor the state of the left atrium of patients in the intensive care unit, and can adjust the monitoring mode adaptively, making data monitoring more targeted while ensuring the health of the patient; and, the present invention By storing different status data in different levels of ring stacks and forwarding data when the ring stack is full, data transmission conflicts between multiple patient terminals and nursing terminals can be avoided, and data overflow or data blocking can be avoided.

Further advantages of the present invention will be further embodied in detail in the specific embodiments section in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic diagram of the arrangement and composition of a left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention;

2 is a detailed structural schematic diagram of a patient end of a left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention;

3 is a schematic structural diagram of the left atrium hemodynamic monitoring system used in the intensive care unit when the left atrial hemodynamic monitoring system described in FIG. 1 includes a plurality of patient terminals;

4 is a schematic diagram of a parallel architecture of multiple patient terminals in the schematic structural diagram of FIG. 3;

5 is a schematic diagram of the working mode adjustment of a left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention;

6 is a flow chart of acquisition mode control of a left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention in one situation;

Fig. 7 is a flow chart of acquisition mode control of the left atrial hemodynamic monitoring system for intensive care unit in another situation according to an embodiment of the present invention.

Detailed ways

The invention will be further described below with reference to the accompanying drawings and specific embodiments.

Before introducing the various embodiments of the present invention, related concepts and principles related to the technical solutions of the present invention are first introduced. This part of the principles and concepts will help those skilled in the art to better understand the improvements and beneficial effects of the present invention.

For implantable hemodynamic monitoring, there are currently three types of implantable hemodynamic monitoring systems, including right ventricular pressure, left atrial pressure and wireless pulmonary artery pressure monitoring devices. These devices remotely monitor and manage CHF (chronic heart failure, chronic heart failure) patients by monitoring blood pressure, heart rate, body weight and other indicators.

For example, HeartPOD (St. Jude Medical Inc, Minneapolis) was first used in CHF patients in 2007.

For an introduction to the prior art, see:

[1]Ritzema J,Melton I C,RichardsAM,et al.Direct left atrial pressure monitoring in ambulatory heart failure patients:initial experience with a newpermanent implantable device.[J].Circulation,2007,116(25):2952-2959.

Elevated left atrial pressure is a characteristic manifestation of cardiac function decompensation. There is a lack of clinical indicators to accurately assess left atrial pressure. Direct measurement of left atrial pressure is helpful for early detection and treatment of acute exacerbations of CHF.

An implantable left ventricular pressure monitoring device in practical use by the inventor, the implantable left ventricular pressure monitoring device is used for CHF patients. of computer software. After femoral vein puncture, the sensor is sent to the right atrium through the delivery system, and the sensor system is implanted into the left atrium side of the atrial septum through atrial septal puncture; there is an anchoring device on the sensor, which can adjust the size according to the thickness of the atrial septum and fix the sensor in the on the room divider. Safe and accurate continuous hemodynamic monitoring in CHF patients.

The inventor found that when the device is used for CHF patients, most of it is aimed at the patients' ordinary clinical or remote home environment, the working mode is single, and the entire working state parameters cannot be adjusted with the actual situation of different patients, especially the sensor on the sensor. After implantation, the anchoring device can only adjust the size after roughly sensing the thickness of the interatrial septum, and once the size is adjusted, it cannot be changed again, that is, it is in a fixed state.

However, in the clinical critical environment, especially in the intensive care unit environment, the patient's heart rate and breathing state may change significantly at any time, resulting in changes in the real-time atrial septal thickness. The anchoring device cannot be adjusted in time, and the acquisition mode of the sensor cannot be dynamically adjusted for feedback, resulting in the above-mentioned implantable left ventricular pressure monitoring device that cannot be applied to the clinical intensive care unit environment.

To this end, the present invention proposes corresponding improved technical solutions.

FIG. 1 is a schematic diagram of the arrangement and composition of a left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention.

In FIG. 1 , it is shown that the left atrial hemodynamic monitoring system for intensive care unit includes a patient end and a nursing end; the patient end is installed on a patient in the intensive care unit, and is connected in communication with the nursing end.

As a specific example, the patient end includes at least one wearable component so as to be worn with an intensive care unit patient.

More specifically, referring to FIG. 2 , FIG. 2 is a detailed structural schematic diagram of the patient end of the left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention.

In Figure 2, the patient end includes a data storage assembly, an implantable sensor, leads, and a wireless transmission unit.

It can be seen that some of the components on the patient side shown in FIG. 2 can directly use the existing implantable left ventricular pressure monitoring device HeartPOD. In the specific configuration, the sensor is also sent to the right atrium through the delivery system after femoral vein puncture. , the sensor system was implanted into the left atrium side of the atrial septum through transseptal puncture.

However, as a refinement of the present invention, the implantable sensor is provided with an anchoring device, the anchoring device being adjustable in size.

The size adjustable here means that the size of the anchoring device can be adjusted in position based on the change in the thickness of the interatrial septum represented by the current state data under different acquisition modes.

The specific acquisition mode changes will be described in detail in the subsequent embodiment section. Here, it can be understood that different anchoring positions correspond to different acquisition modes of the sensor, rather than a fixed anchoring method. Considering that in the intensive care unit environment, the patient's heart rate and breathing state may occur at any time Significant changes, resulting in a situation where real-time interatrial septal thickness (relative cavity position) may change, more in line with the actual health status of ICU patients.

The monitoring system is powered by a wireless radio frequency transmission system.

Similar to the existing implantable left ventricular pressure monitoring device, HeartPOD, the device provides energy through PAM's 125kHz radio frequency transmission system and monitors data such as left atrial pressure, body temperature, and intracardiac electrogram.

表示向下取整；N、K均为大于2的正整数，M≥1。It should be understood that the patient end described in the present invention is located on the patient side, and the technical solution of the present invention can be applied to multiple patient sides at the same time, that is, multiple intensive care unit patients correspond to one nursing end, or N intensive care units. The patient corresponds to M nursing terminals,

Indicates rounding down; N and K are both positive integers greater than 2, and M≥1.

For the convenience of description, in Figures 3 to 4, N=2, M=1 is taken as an example, Figure 3 shows the left atrial hemodynamic monitoring system described in Figure 1 when it includes multiple (2) patient terminals for critically ill patients. Schematic diagram of the structure of the ICU;

FIG. 4 is a schematic diagram of a parallel architecture of multiple (2) patient terminals in the schematic structural diagram of FIG. 3 .

In the patient side of FIG. 2 or FIG. 4, the implantable sensor is used to collect left atrial status data, and transmit the status data through the lead to the data storage assembly, and from the data storage assembly forwarded to the nursing end.

Preferably, the data storage component includes a state data preprocessing unit; the data storage component forwards the state data to the nursing terminal after performing preprocessing by the state data preprocessing unit.

The preprocessing here includes various data preprocessing methods, such as obvious duplicate data elimination, obvious wrong data elimination, noise filtering, data smoothing, etc., which are not limited in the embodiment of the present invention, and those skilled in the art can collect data according to the actual state of the collection. The attributes of the data determine the corresponding preprocessing method.

5 is a schematic diagram of adjustment of the working mode of the left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention, that is, the nursing end receives the state data forwarded by the patient end according to a first preset cycle performing kinetic analysis, and switching the acquisition mode of the implantable sensor according to the result of the kinetic analysis; different acquisition modes correspond to different acquisition mode parameter settings;

The acquisition mode parameter is one of the following or any combination thereof:

The single acquisition time of the implantable sensor, the combination of collected state data, and the set size of the anchoring device;

The left atrial state data includes left atrial pressure, left atrial body temperature, intracardiac electrogram, and sensor acquisition time.

It can be seen that the acquisition mode is determined by different acquisition mode parameters;

As a schematic example:

When in the acquisition mode A, the single acquisition duration of the implantable sensor is tA, and the left atrial pressure and the left atrial body temperature are collected;

When in the acquisition mode B, the single acquisition duration of the implantable sensor is tB, and the acquisition is an intracardiac electrogram;

When in the acquisition mode C, the single acquisition duration of the implantable sensor is tC, and the acquisition is to first collect the intracardiac electrogram, and then collect the left atrial pressure and left atrial temperature;

When in the acquisition mode D, the single acquisition duration of the implantable sensor is tD, and the acquisition is synchronous acquisition of intracardiac electrogram, left atrial pressure and left atrial temperature.

Figures 6-7 show the switching control principle of the acquisition mode for two different situations.

FIG. 6 is a flow chart of acquisition mode control in a situation of a left atrial hemodynamic monitoring system for an intensive care unit according to an embodiment of the present invention.

Wherein, after receiving the state data forwarded by the patient, the nursing terminal performs kinetic analysis according to a first preset period, and switches the acquisition mode of the implantable sensor according to the result of the kinetic analysis, Specifically include:

Receive k pieces of left atrial pressure sampling data {P ₁ , P ₂ ,...P _k } and k pieces of left atrial body temperature sampling data {T ₁ , T ₂ , ...T _k }, k >2;

Calculate the left atrial pressure-left atrial temperature matching change value PT according to the fitting relation f;

Among them, PT=f(P _s ,T _s ,W,M,T);

P _s is a pressure data set composed of k left atrial pressure sampling data;

T _s is a body temperature data set composed of k left atrial body temperature sampling data;

M is the size value of the anchoring device set in the first preset period;

W is the BMI index of the patient;

T is the length of the first preset period;

It can be understood that the size value of the anchoring device is adjusted to track the thickness of the interatrial septum, so as to realize the fixation of the sensor on the interatrial septum.

judging whether the difference between the left atrial pressure-left atrial body temperature matching change value PT and the preset standard value ST is within a predetermined range;

If yes, increase the sensor acquisition duration and the first preset period.

If not, reduce the sensor acquisition duration and the first preset period, and if the state data forwarded by the patient end received by the nursing end does not include the ECG data, the The nursing terminal notifies the nursing staff to adjust the acquisition mode of the implantable sensor, so that the implantable sensor synchronously acquires the left atrial pressure, the left atrial temperature, and the intracardiac electrogram.

In the above embodiment, the BMI index is a body mass index (Body Mass Index) referred to as body mass index, which is a standard commonly used in the world to measure the degree of fatness and thinness of a human body and whether it is healthy.

(体重单位：千克；身高单位：米。)The calculation formula is:

(Weight unit: kilograms; height unit: meters.)

As a further improvement of the present invention, an experimental preferred embodiment of the above-mentioned fitting relationship is as follows:

It can be seen that the above formula comprehensively considers various factors such as (P _s ,T _s ,W,M,T), and conforms to the clinical sampling law. In actual implementation, it is preferable that T∈[0,2], the unit is second.

意味着要对所有{P₁,P₂,…P_k}、{T₁,T₂,…T_k}中的每两个不同的Pm、Pn(Tm、Tn)执行一次差值计算然后求平方差的和，因此，此∑符号并未示出上标和下标，但是本领域技术人员知晓，Pm，Pn、Tm、Tn∈{P₁,P₂,…P_k}。in,

It means to perform a difference calculation for every two different Pm, Pn(Tm, Tn) in all {P ₁ ,P ₂ ,...P _k }, {T ₁ ,T ₂ ,...T _k } and then find The sum of squared differences, therefore, this Σ notation does not show superscripts and subscripts, but those skilled in the art know that Pm, Pn, Tm, _{Tn∈ {} P1,P2,... _Pk }.

It is judged whether the difference between the left atrial pressure-left atrial body temperature matching change value PT and the preset standard value ST is within a predetermined range.

The preset standard value ST here can be obtained according to the statistics of clinical experiments. As a preference,

δT为设定的时间扰动量，0.01＜δT＜0.05。

δT is the set time disturbance amount, 0.01<δT<0.05.

In FIG. 7 , after receiving the state data forwarded by the patient terminal, the nursing terminal performs kinetic analysis according to a first preset period, and switches the implantable sensor according to the result of the kinetic analysis. Collection mode, including:

receiving the current intracardiac electrogram curve Scur within the first preset period forwarded by the patient terminal, where the current intracardiac electrogram curve Scur includes a plurality of sampling points;

Perform sampling point matching on the current intracardiac electrogram curve Scur with the previous intracardiac electrogram curve Spre received and forwarded by the patient end last time;

If the sampling points exceeding the first preset number cannot be matched, the nursing end informs the nursing staff to adjust the size of the anchoring device.

There is a nickel-titanium alloy anchoring device on the sensor, which can adjust the size according to the inter-atrial septum thickness adjustment command input by the nursing staff.

Specifically, as a preferred embodiment, the atrial septal thickness adjustment instruction input by the nursing staff may be the atrial septal thickness adjustment instruction obtained by fitting according to the current patient state parameters, including the size of different atrial/ventricular chambers A change instruction; it can also be an input simulated size change instruction, so that the anchoring device considers that the thickness of the interatrial septum has changed, thereby changing the anchor size.

Since the anchoring device can automatically track the thickness of the atrial septum and adjust the size, the sensor can be fixed on the atrial septum.

Of course, it is understandable that the adjustments here are all very small fine-tuning, but since it is in the atrium/ventricular cavity, even small fine-tuning will be fed back to the subsequent state parameter changes, thus forming a closed-loop self-adaptation Sexual feedback has a more targeted effect than complete stillness.

If the sampling points exceeding the first preset number can be matched, the acquisition mode of the implantable sensor is switched, so that the implantable sensor collects the left atrial pressure and the left atrial body temperature in the first time period, While the intracardiac electrogram is acquired in a second time period, the first time period is different from the second time period.

It can be understood that each electrocardiogram includes multiple time-sampling values, and the sampling point matching is to translate different electrocardiogram curves to the same starting point, and monitor the number of overlapping sampling points.

It can be understood that the above process is performed by continuous cyclic periodic sampling. If there is currently no “previous intracardiac electrogram curve Spre received and forwarded by the patient end”, wait for the next cycle.

表示向下取整；N、K均为大于2的正整数，M≥1。As mentioned above, the technical solution of the present invention can be applied to multiple patient sides at the same time, that is, multiple ICU patients corresponding to one nursing end, or N ICU patients corresponding to M nursing ends,

Indicates rounding down; N and K are both positive integers greater than 2, and M≥1.

When the number of N is much greater than M, for example, when k is greater than 10, there may be a conflict or even blocking of data transmission between the patient and the nursing end, endangering the health of the patient, but it is necessary to maintain a balance between data processing and feedback and data communication bandwidth.

For this reason, the present invention proposes further improved embodiments as follows:

The data storage component uses a circular stack to store the state data. The ring stack includes a first-layer ring stack, a second-layer ring stack and a third-layer ring stack.

During specific storage, the first layer of ring stack is used to store left atrial pressure data; the second layer of ring stack is used to store left atrial body temperature data; the third layer of ring stack is used to store intracardiac electrogram data; The third layer ring stack is the innermost layer ring stack.

During specific data forwarding, when one of the first-layer ring stack or the second-layer ring stack is full, the data storage component stores the state data (left atrial pressure data + left atrial body temperature data at this time) ) is forwarded to the nursing terminal;

Certainly, when the third-layer ring stack is full, the data storage component page forwards the state data (here is the ECG data) to the nursing terminal.

A full stack means that the storage space of the ring stack of this layer is full.

The structure of the ring stack can avoid data overflow, and at the same time, the full stack sending method can prevent each nursing end from preempting the communication path with the nursing end all the time. The stack size of each layer of the ring stack can be freely adjusted to change the period of the "full stack".

It can be seen that the hemodynamic monitoring system proposed by the present invention can be used for left atrial state monitoring of patients in the intensive care unit, and can adjust the monitoring mode adaptively, making data monitoring more targeted while ensuring the health of patients; Moreover, the present invention can avoid data transmission conflicts between multiple patient terminals and nursing terminals, and avoid data overflow or data blocking by storing different status data in different levels of ring stacks and forwarding data when the ring stack is full.

In addition, different embodiments of the present invention respectively solve one or more technical problems mentioned in the background art, and achieve corresponding technical effects, and different combinations of embodiments can solve all the mentioned technical problems and achieve all technical effects; however, It is not required that every single embodiment of the present invention solves all technical problems or obtains all improvements. The corresponding embodiments aimed at solving a certain problem or improving a single technical effect can all constitute independent technical solutions of the present invention.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications or equivalent replacements are made to the specific embodiments of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall be included within the protection scope of the claims of the present invention.

For the part of the module structure that is not particularly specified in the present invention, the content recorded in the prior art shall prevail. The prior art mentioned in the foregoing background section of the present invention can be used as a part of the present invention to understand the meaning of some technical features or parameters. The protection scope of the present invention is subject to the content actually recorded in the claims.

Claims (10)

1. The utility model provides an intensive care unit is with left atrium hemodynamics monitoring system, monitoring system includes patient end and nursing end, its characterized in that:

the patient end is arranged on a patient in an intensive care unit and is in communication connection with the nursing end;

the patient end comprises a data storage component, an implantable sensor, a lead and a wireless transmission unit;

the implantable sensor is used for acquiring left atrial state data, transmitting the state data to the data storage component through the lead and forwarding the state data to the nursing end through the data storage component;

the implantable sensor is configured with an anchoring device that is adjustable in size;

the nursing end receives the state data forwarded by the patient end, performs dynamic analysis according to a first preset period, and switches the acquisition mode of the implantable sensor according to the result of the dynamic analysis; different acquisition modes correspond to different acquisition mode parameter settings;

the acquisition mode parameter is one of the following parameters or any combination thereof:

the single acquisition duration of the implantable sensor, the acquired state data combination and the set size of the anchoring device;

the left atrial state data includes left atrial pressure, left atrial temperature, intracardiac electrocardiogram, and sensor acquisition duration.

2. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 1, wherein:

the data storage component comprises a state data preprocessing unit;

and the data storage component forwards the status data to the nursing end after the status data is preprocessed by the status data preprocessing unit.

3. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 1, wherein:

the nursing terminal receives the state data forwarded by the patient terminal, performs dynamics analysis according to a first preset period, and switches the acquisition mode of the implantable sensor according to the result of the dynamics analysis, specifically including:

receiving k left atrial pressure sampling data { P) forwarded by the patient end within the first preset period ₁ ,P ₂ ,…P _k And k left atrial body temperature sampling data { T } ₁ ,T ₂ ,…T _k }，k>2；

Calculating a left atrium pressure-left atrium body temperature matching change value PT according to the fitting relation f;

wherein PT ═ f (P) _s ,T _s ,W,M,T)；

P _s A pressure data set consisting of k left atrial pressure sample data;

T _s a body temperature data set formed by k left atrial body temperature sampling data;

m is the size value of the anchoring device set in the first preset period;

w is the BMI index of the patient;

t is the length of the first preset period;

judging whether the difference value of the left atrial pressure-left atrial body temperature matching change value PT and a preset standard value ST is in a preset range;

if yes, increasing the sensor acquisition time length and the first preset period.

4. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 1, wherein:

the nursing end receives the state data forwarded by the patient end, performs dynamics analysis according to a first preset period, and switches the acquisition mode of the implantable sensor according to the result of the dynamics analysis, specifically including:

receiving a current intracardiac electrocardiogram curve Scur forwarded by the patient end within the first preset period, wherein the current intracardiac electrocardiogram curve Scur comprises a plurality of sampling points;

performing sampling point matching on the current intracardiac electrocardiogram curve Scur and the previously received previous intracardiac electrocardiogram curve Spre forwarded by the patient end;

and if the sampling points exceeding the first preset number cannot be matched, the nursing end informs a nursing staff to adjust the size of the anchoring device.

5. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 4, wherein:

if more than a first preset number of sampling points can be matched, switching the acquisition mode of the implantable sensor, so that the implantable sensor acquires the left atrial pressure and the left atrial body temperature in a first time period, and acquires the intracardiac electrocardiogram in a second time period, wherein the first time period is different from the second time period.

6. A left atrial hemodynamic monitoring system for an intensive care unit as recited in claim 3, wherein:

judging whether the difference value of the left atrial pressure-left atrial body temperature matching change value PT and a preset standard value ST is in a preset range;

if not, reducing the acquisition time length of the sensor and the first preset period,

and if the state data forwarded by the nursing terminal receiving the patient terminal does not contain the intracardiac electrocardiogram data, the nursing terminal informs nursing staff to adjust the acquisition mode of the implanted sensor, so that the implanted sensor synchronously acquires the left atrial pressure, the left atrial body temperature and the intracardiac electrocardiogram.

7. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 1, wherein:

the monitoring system provides energy through a wireless radio frequency transmission system.

8. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 1, wherein:

and the data storage component stores the state data by adopting an annular stack.

9. A left atrial hemodynamic monitoring system for an intensive care unit as recited in claim 8, wherein:

the annular stacks comprise a first layer of annular stack, a second layer of annular stack and a third layer of annular stack;

the first layer ring stack is used for storing left atrial pressure data;

the second layer ring stack is used for storing left atrium body temperature data;

the third layer of ring stack is used for storing intracardiac electrocardiogram data;

the third layer of ring stack is the innermost layer of ring stack.

10. A left atrial hemodynamic monitoring system for intensive care units as recited in claim 9, wherein:

when one of the first layer ring stack or the second layer ring stack is full,

the data storage component forwards the status data to the care end.

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