CN114916922B - 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. The patient end includes a data storage component, an implantable sensor, a wire, and a wireless transmission unit; The storage component is forwarded to the nursing end; the implantable sensor is equipped with an anchoring device, and the size of the anchoring device can be adjusted; the nursing end performs dynamic analysis according to the first preset cycle, and switches the implantation according to the result of the dynamic analysis Acquisition mode of sex sensor. The data storage component uses a ring stack to store the state data. The hemodynamic monitoring system proposed by the present invention can be used for monitoring the state of the left atrium of patients in the intensive care unit, and can adjust the monitoring mode adaptively, so as to ensure the health of the patient and make the data monitoring more targeted.

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, in many situations, it is necessary to collect hemodynamic information in the left atrium of the heart. 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. The tissue in the left atrium is simply sutured and fixed, and it can be pulled out directly after use, which is very easy to bleed when pulled out, and may cause unsafe accidents.

In addition, it has been reported that elevated left atrial pressure is also a characteristic manifestation of cardiac decompensation. There is a lack of clinical indicators for accurate evaluation of left atrial pressure, and 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 the device is used for patients with chronic heart failure, most of it is aimed at the general clinical or remote home environment of the patient, and the working mode is single. Once adjusted, it cannot be changed again, that is, it is in a fixed state. There is also a simpler left atrial hemodynamic monitoring device used in the intensive care unit in the prior art, such as utility model patent CN213940726U.

However, in the clinical intensive care environment, especially in the intensive care unit environment, the patient's heart rate and respiratory status may change significantly at any time, resulting in changes in the real-time atrial septal thickness. At this time, the sensor on the fixed state The anchoring device cannot be adjusted in time, and the acquisition mode of the sensor cannot be dynamically adjusted for feedback. As a result, the above-mentioned implantable left heart pressure monitoring device cannot be applied to the continuous full-process monitoring of the clinical intensive care unit environment.

Contents of the invention

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

Technical scheme of the present invention is made up of patient end and nursing end, wherein:

The patient terminal is installed on a patient in the intensive care unit and communicated 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 to collect the state data of the left atrium, and transmit the state data to the data storage component through the wire, and forward the data storage component to the nursing end;

The implantable sensor is configured with an anchoring device, and the size of the anchoring device is adjustable;

After the nursing terminal receives the status data forwarded by the patient terminal, it 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.

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

The acquisition mode parameters are one of the following or any combination thereof:

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

The left atrial state data includes left atrial pressure, left atrial 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 end after the state data is preprocessed 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 end, the nursing end performs dynamic analysis according to a first preset cycle, and switches the acquisition of the implantable sensor according to the result of the dynamic analysis. modes, including:

receiving k left atrial pressure sampling data {P ₁ , P ₂ ,...P _k } and k 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 relationship 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 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, then 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 at this time does not include the ECG data, then 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, left atrial body temperature, and intracardiac electrogram.

In another aspect, after receiving the state data forwarded by the patient end, the nursing end performs dynamic analysis according to a first preset cycle, and switches the implantable sensor according to the result of the dynamic analysis. Acquisition modes, including:

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

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

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

If the sampling points exceeding the first preset number can be matched, then switching the collection mode of the implantable sensor, so that the implantable sensor collects the left atrial pressure and left atrial body temperature during the first time period, While the intracardiac electrogram is acquired during 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 electrogram data;

The third ring stack is the innermost ring stack.

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

The data storage component forwards the state data to the nursing end.

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 adaptively adjust the monitoring mode, making data monitoring more targeted while ensuring the health of the patient; and, the present invention By using different levels of ring stack storage for different status data and forwarding data when the ring stack is full, it can avoid data transmission conflicts between multiple patient terminals and nursing terminals, and avoid data overflow or data blocking.

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

Description of drawings

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

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;

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

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

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

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

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

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

detailed description

In the following, the invention will be further described in conjunction with the accompanying drawings and specific embodiments.

Before introducing various embodiments of the present invention, relevant concepts and principles related to the technical solution of the present invention will be introduced. These principles and concepts 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.

The introduction of prior art can be found in:

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

Elevated left atrial pressure is a characteristic manifestation of cardiac decompensation, and there is a lack of clinical indicators for accurate evaluation of left atrial pressure. Direct measurement of left atrial pressure is helpful for early detection and treatment of acute exacerbations of CHF.

An implantable left heart pressure monitoring device used by the inventor in actual use, the implantable left heart pressure monitoring device is used for CHF patients, and the device is composed of implantable sensors, wires, subcutaneous induction coils, external patient interrogation components and physicians computer software components. 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 the atrial septal puncture; the sensor has an anchoring device that can be adjusted in size according to the thickness of the atrial septum, and the sensor is fixed on the The room is separated. Safe and accurate continuous hemodynamic monitoring can be performed on CHF patients.

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

However, in the clinical intensive care environment, especially in the intensive care unit environment, the patient's heart rate and respiratory status may change significantly at any time, resulting in changes in the real-time atrial septal thickness. At this time, the sensor on the fixed state The anchoring device cannot be adjusted in time, and the acquisition mode of the sensor cannot be dynamically adjusted by feedback, so the above-mentioned implantable left heart pressure monitoring device cannot be applied to the clinical intensive care unit environment.

For this reason, 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 used in 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 the 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 communicated with the nursing end.

As a specific embodiment, the patient end includes at least one wearable component, so that it can be worn on patients in the intensive care unit.

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

In FIG. 2 , the patient end includes a data storage component, an implantable sensor, a wire, and a wireless transmission unit.

It can be seen that part of the components at the patient end shown in Figure 2 can directly follow the existing implantable left heart pressure monitoring device HeartPOD, and in the specific configuration, the sensor is sent to the right atrium through the delivery system after femoral vein puncture , the sensor system was implanted in the left atrial side of the atrial septum through atrial septal puncture.

However, as an improved part of the present invention, the implantable sensor is provided with an anchoring device which is adjustable in size.

Here, the size can be adjusted, which means that the size of the anchoring device can be adjusted in different acquisition modes based on the change of the interatrial septal thickness represented by the current state data.

The specific change of the acquisition mode will be introduced in detail in the subsequent part of the embodiment. 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 lead to real-time atrial septal thickness (relative cavity position) may change, which is more in line with the actual health status of patients in the intensive care unit.

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

Similar to the existing implantable left heart pressure monitoring device HeartPOD, the device provides energy through PAM's 125kHz wireless 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 it can be 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 Fig. 3-Fig. 4, taking N=2, M=1 as an example, Fig. 3 shows that the left atrial hemodynamic monitoring system described in Fig. 1 includes multiple (2) patient terminals for severe cases Schematic diagram of the structure of the intensive care unit;

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

In the patient end of FIG. 2 or FIG. 4, the implantable sensor is used to collect left atrial state data, and transmit the state data to the data storage component through the wire, and the data storage component 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 care terminal after the state data is preprocessed by the state data preprocessing unit.

The preprocessing here includes various data preprocessing methods, such as obvious duplicate data removal, obvious wrong data removal, noise filtering, data smoothing, etc., the embodiment of the present invention does not limit this, and those skilled in the art can The attributes of the data determine the corresponding preprocessing method.

Fig. 5 is a schematic diagram of the working mode adjustment of the left atrial hemodynamic monitoring system used in the intensive care unit according to an embodiment of the present invention, that is, the nursing terminal follows the first preset cycle after receiving the status data forwarded by the patient terminal performing a 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 parameters are one of the following or any combination thereof:

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

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

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

As an illustrative example:

When in collection mode A, the single collection time of the implantable sensor is tA, and the collection is left atrial pressure and left atrial body temperature;

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

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

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

Fig. 6-Fig. 7 shows the switching control principle of the acquisition mode for two different situations.

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

Wherein, after receiving the status data forwarded by the patient, the nursing terminal 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, Specifically include:

receiving k left atrial pressure sampling data {P ₁ , P ₂ ,...P _k } and k 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 relationship 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 of the anchoring device is adjusted for tracking the thickness of the interatrial septum, so as to fix the sensor on the interatrial septum.

Judging whether the difference between the left atrial pressure-left atrial 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, then 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 at this time does not include the ECG data, then 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, left atrial body temperature, and intracardiac electrogram.

In the above embodiment, the BMI index is Body Mass Index (BMI) for short, 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: kilogram; height unit: meter.)

As a further improvement of the present invention, an experimental preferred embodiment of the above-mentioned fitting relation 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 rules. In actual implementation, T∈[0,2] is preferred, and 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 calculate The sum of squared differences, therefore, this Σ notation does not show superscripts and subscripts, but those skilled in the art know, Pm, Pn, Tm, Tnε{P ₁ , P ₂ , . . . P _k }.

It is judged whether the difference between the left atrial pressure-left atrial 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 an optimization,

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 the nursing end receives the state data forwarded by the patient end, it performs dynamic analysis according to the first preset cycle, and switches the implantable sensor according to the result of the dynamic analysis. Acquisition modes, including:

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

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

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

There is a nickel-titanium alloy anchoring device on the sensor, which can be adjusted in size according to the interatrial septal thickness adjustment command input by the nurse.

Specifically, as a preferred embodiment, the atrial septal thickness adjustment instruction input by the nurse may be an atrial septal thickness adjustment instruction obtained by fitting and fitting according to the current patient state parameters, including the sizes of different atrial/ventricular cavities A change command; it may also be an input simulation size change command, so that the anchoring device thinks that the interatrial septal thickness has changed, thereby changing the anchoring size.

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

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

If the sampling points exceeding the first preset number can be matched, then switching the collection mode of the implantable sensor, so that the implantable sensor collects the left atrial pressure and left atrial body temperature during the first time period, While the intracardiac electrogram is acquired during 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 a continuous cycle of periodic sampling execution. If there is no "previously received ECG curve Spre 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 correspond to one nursing terminal, or N ICU patients correspond to M nursing terminals,

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 data transmission conflicts or even congestion between the patient end and the nursing end, endangering the health of patients, but the balance between data processing and feedback and data communication broadband must be maintained.

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

The data storage component uses a ring 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 stacks is used to store left atrial pressure data; the second layer of ring stacks is used to store left atrium body temperature data; the third layer of ring stacks is used to store intracardiac ECG data; The third ring stack is the innermost ring stack.

When the specific data is forwarded, when one of the first layer ring stack or the second layer ring stack is full, the data storage component stores the state data (in this case, left atrial pressure data+left atrial body temperature data) ) is forwarded to the nursing end;

Certainly, when the third-layer ring stack is full, the data storage component page forwards the status data (in this case, ECG data) to the nursing terminal.

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

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

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

In addition, different embodiments of the present invention solve one or more technical problems mentioned in the background technology and achieve corresponding technical effects, and combinations of different embodiments can solve all the technical problems mentioned and achieve all technical effects; however, It is not required that every single embodiment of the present invention can solve all technical problems or obtain all improved effects. The corresponding embodiment aimed at solving a certain problem or improving a single technical effect may constitute an independent technical solution 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 and not 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 Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall fall within the protection scope of the claims of the present invention.

For some module structures not particularly defined in the present invention, the content recorded in the prior art shall prevail. The prior art mentioned in the background 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 shall be determined by the contents actually recorded in the claims.

Claims (10)

1. A left atrial hemodynamic monitoring system for an intensive care unit, said monitoring system comprising a patient end and a nursing end, characterized in that: The patient terminal is installed on a patient in the intensive care unit and communicated with the nursing terminal; The patient end includes a data storage component, an implantable sensor, a wire and a wireless transmission unit; The implantable sensor is used to collect the state data of the left atrium, and transmit the state data to the data storage component through the wire, and forward the data storage component to the nursing end; The implantable sensor is configured with an anchoring device, and the size of the anchoring device is adjustable; After the nursing end receives the state data forwarded by the patient end, it performs dynamic analysis according to the first preset period, and switches the acquisition mode of the implantable sensor according to the result of the dynamic analysis; different The acquisition mode corresponds to different acquisition mode parameter settings; The acquisition mode parameters are one of the following or any combination thereof: The duration of a single acquisition of the implantable sensor, the combination of collected state data, and the size of the set anchoring device; The left atrial state data includes left atrial pressure, left atrial temperature, intracardiac electrogram, and sensor acquisition time. 2. a kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 1, is characterized in that: The data storage component includes a state data preprocessing unit; The data storage component forwards the state data to the nursing end after the state data is preprocessed by the state data preprocessing unit. 3. a kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 1, is characterized in that: After the nursing terminal receives the state data forwarded by the patient terminal, it performs dynamic analysis according to the first preset cycle, and switches the acquisition mode of the implantable sensor according to the result of the dynamic analysis, specifically including : receiving k left atrial pressure sampling data {P ₁ , P ₂ ,...P _k } and k 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 relationship 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 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. 4. a kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 1, is characterized in that: After the nursing terminal receives the state data forwarded by the patient terminal, it performs dynamic analysis according to the first preset cycle, and switches the acquisition mode of the implantable sensor according to the result of the dynamic analysis, specifically including : receiving the current intracardiac electrocardiogram curve Scur within the first preset period forwarded by the patient end, the current intracardiac electrogram curve Scur including a plurality of sampling points; performing sampling point matching on the current intracardiac ECG curve Scur and the previous intracardiac ECG curve Spre forwarded by the patient end received last time; If the sampling points exceeding the first preset number cannot be matched, the nursing terminal notifies the nursing staff to adjust the size of the anchoring device. 5. a kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 4, is characterized in that: If the sampling points exceeding the first preset number can be matched, switch the collection mode of the implantable sensor, so that the implantable sensor collects the left atrial pressure and left atrial body temperature in the first time period, and in the first time period The intracardiac electrogram is collected in a second time period, and the first time period is different from the second time period. 6. A kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 3, is characterized in that: Judging whether the difference between the left atrial pressure-left atrial temperature matching change value PT and the preset standard value ST is within a predetermined range; If not, then reduce the sensor acquisition duration and the first preset period, And, if the state data forwarded by the patient terminal received by the nursing terminal at this time does not include the ECG data, the nursing terminal notifies the nursing staff to adjust the acquisition mode of the implantable sensor so that all The implantable sensor synchronously collects the left atrial pressure, left atrial temperature, and intracardiac electrogram. 7. A kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 1, is characterized in that: The monitoring system is powered by a wireless radio frequency transmission system. 8. A kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 1, is characterized in that: The data storage component uses a ring stack to store the state data. 9. A kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 8, is characterized in that: 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 electrogram data; The third ring stack is the innermost ring stack. 10. A kind of left atrial hemodynamic monitoring system for intensive care unit as claimed in claim 9, is characterized in that: When one of the first layer ring stack or the second layer ring stack is full, The data storage component forwards the state data to the nursing end.

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