CN108618783B - Method and device for judging position of catheter and monitoring equipment - Google Patents
Method and device for judging position of catheter and monitoring equipment Download PDFInfo
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- CN108618783B CN108618783B CN201710158967.6A CN201710158967A CN108618783B CN 108618783 B CN108618783 B CN 108618783B CN 201710158967 A CN201710158967 A CN 201710158967A CN 108618783 B CN108618783 B CN 108618783B
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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
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
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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
- A61B5/02—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
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
- A61B5/02152—Measuring pressure in heart or blood vessels by means inserted into the body specially adapted for venous pressure
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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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
- A61B5/68—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
- A61B5/6852—Catheters
Abstract
The invention discloses a method and a device for judging the position of a catheter and monitoring equipment. The method comprises the following steps: acquiring a plurality of physiological parameter data of a patient; generating a plurality of parameter characteristic signals according to the plurality of physiological parameter data; matching the plurality of parameter characteristic signals with a position signal template established in advance; when the matching result meets a preset condition, determining human body structure positions corresponding to the parameter characteristic signals; and determining the current position of the catheter according to the position of the human body structure. Therefore, in the whole process, the position of the catheter can be synchronously determined while the physiological parameters are monitored, extra auxiliary equipment is not required to be introduced, the operation space during operation is saved, and the space constraint when medical staff carry out medical treatment on patients due to the fact that the equipment is too many and the treatment hidden danger and the like caused by unchanged operation are avoided.
Description
Technical Field
The invention relates to the technical field of medical monitoring, in particular to a method and a device for judging the position of a catheter and monitoring equipment.
Background
In the clinic, there are many situations where vascular or intraluminal catheterization of a patient is required. For example, arterial and Venous blood pressure monitoring, cardiac output monitoring, arterial blood draw, supraluminal fluid infusion, administration of PICC (Peripherally Inserted Central Venous Catheters), etc. When the intubation is clinically carried out at present, the current position of the intubation often needs medical care personnel to carry out subjective judgment according to years of clinical experience, and the specific position of the intubation at present cannot be obtained, so that the operation proficiency is extremely high. In addition, the tissue structures of patients are different, and the positions of the intubation tubes, whether the intubation tubes are deviated and the like all depend on subjective feeling and judgment of medical care personnel.
In the related art, the position of the cannula is usually assisted by electronic devices, such as ultrasound and X-ray imaging. However, this approach often requires the tacitly cooperation of at least two physicians, either by intubating the health care provider with one hand for primary aid guidance, or by assisting the physician for primary guidance, which, however, requires an accurate judgment and quick response by the assisting physician to the current position of the catheter. Meanwhile, in order to obtain a good imaging positioning effect, the ultrasonic and X-ray imaging equipment is often required to be closely placed around the intubation operation position, which inevitably hinders the operation of an operator, is very inconvenient, and even hinders the intubation operation of the operator.
Disclosure of Invention
The object of the present invention is to solve at least to some extent one of the above mentioned technical problems.
To this end, a first object of the invention is to propose a method of determining the position of a catheter. The method saves the operation space during operation, and avoids the space constraint when medical care personnel carry out medical treatment on patients due to the multiple devices, the treatment hidden danger caused by unchanged operation and the like.
A second object of the present invention is to provide a device for determining the position of a catheter.
A third object of the invention is to propose a monitoring device.
In order to achieve the above object, a method for determining a position of a catheter according to an embodiment of the first aspect of the present invention includes: acquiring a plurality of physiological parameter data of a patient; generating a plurality of parameter signature signals from the plurality of physiological parameter data; matching the parameter characteristic signals with a position signal template established in advance; when the matching result meets a preset condition, determining human body structure positions corresponding to the parameter characteristic signals; and determining the current position of the catheter according to the position of the human body structure.
According to the method for judging the position of the catheter, disclosed by the embodiment of the invention, a plurality of physiological parameter data of a patient can be obtained, then a plurality of parameter characteristic signals can be generated according to the plurality of physiological parameter data, and finally, the current position of the catheter is determined according to a pre-established position signal template and the plurality of parameter characteristic signals. The method can realize the acquisition of physiological parameter data through the existing monitoring equipment, generate the acquired physiological parameter data into corresponding parameter characteristic signals, and accurately determine the current position of the catheter according to different parameter characteristic signals and a position signal template established in advance.
In order to achieve the above object, an apparatus for determining a position of a catheter according to an embodiment of the second aspect of the present invention includes: an acquisition module for acquiring a plurality of physiological parameter data of a patient; a first generation module for generating a plurality of parameter characteristic signals from the plurality of physiological parameter data; the matching module is used for matching the parameter characteristic signals with a position signal template established in advance; the first determining module is used for determining human body structure positions corresponding to the parameter characteristic signals when the matching result meets a preset condition; and the second determination module is used for determining the current position of the catheter according to the position of the human body structure.
According to the device for judging the position of the catheter, which is disclosed by the embodiment of the invention, the acquisition module can be used for acquiring a plurality of physiological parameter data of a patient, the first generation module generates a plurality of parameter characteristic signals according to the plurality of physiological parameter data, the matching module matches the plurality of parameter characteristic signals with the pre-established position signal template, if the matching result meets the preset condition, the first determination module determines the human structure positions corresponding to the plurality of parameter characteristic information, and the second determination module determines the current position of the catheter according to the human structure positions. The method can realize the acquisition of physiological parameter data through the existing monitoring equipment, generate the acquired physiological parameter data into corresponding parameter characteristic signals, and accurately determine the current position of the catheter according to different parameter characteristic signals and a position signal template established in advance.
In order to achieve the above object, a monitoring device according to a third embodiment of the present invention includes: the device for judging the position of the catheter is described in the embodiment of the second aspect of the invention.
According to the monitoring device provided by the embodiment of the invention, a plurality of physiological parameter data of a patient can be acquired, then a plurality of parameter characteristic signals can be generated according to the plurality of physiological parameter data, and finally, the current position of the catheter is determined according to a pre-established position signal template and the plurality of parameter characteristic signals. The method can realize the acquisition of physiological parameter data through the existing monitoring equipment, generate the acquired physiological parameter data into corresponding parameter characteristic signals, and accurately determine the current position of the catheter according to different parameter characteristic signals and a position signal template established in advance.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a method of determining a position of a catheter according to one embodiment of the present invention;
FIG. 2(a) is a schematic diagram illustrating a characteristic value of physiological parameter data according to an embodiment of the present invention;
FIG. 2(b) is a schematic diagram illustrating a value association relationship of physiological parameter data according to an embodiment of the invention;
FIG. 3 is a flow diagram of establishing a location signal template according to one embodiment of the present invention;
FIG. 4 is a schematic illustration of determining a current position of a catheter in accordance with one embodiment of the present invention;
FIG. 5 is a flow chart of a method of determining a position of a catheter according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of the structure of an apparatus for determining the position of a catheter in accordance with one embodiment of the present invention;
FIG. 7 is a schematic diagram of a first generation module according to one embodiment of the invention;
FIG. 8 is a schematic diagram of a first generation module according to another embodiment of the invention;
FIG. 9 is a schematic diagram of an apparatus for determining the position of a catheter in accordance with one embodiment of the present invention;
FIG. 10 is a schematic structural diagram of an apparatus for determining the position of a catheter in accordance with another embodiment of the present invention;
FIG. 11 is a schematic structural diagram of an apparatus for determining the position of a catheter in accordance with yet another embodiment of the present invention;
fig. 12 is a schematic structural diagram of a monitoring device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes a method, a device and a monitoring device for judging the position of a catheter according to an embodiment of the invention with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method of determining a position of a catheter according to one embodiment of the present invention. It should be noted that the method for determining the position of the catheter according to the embodiment of the present invention can be applied to the apparatus for determining the position of the catheter according to the embodiment of the present invention, and the apparatus may include multiple modules, and these modules may be disposed on the same monitoring device, or may be independently disposed on different monitoring devices.
As shown in fig. 1, the method for determining the position of a catheter may include:
s101, acquiring a plurality of physiological parameter data of a patient.
In particular, physiological parameter data of the patient may be acquired by the monitoring device. In embodiments of the present invention, the physiological parameter data may include, but is not limited to, physiological parameter values, waveform data, and the like. The monitoring devices may include, but are not limited to, single parameter monitors, multi-parameter monitors, or distributed monitoring devices associated via a network, wherein the signal acquisition and data processing, and display for the distributed monitoring devices are each independently separated.
It should be noted that the type of physiological parameter data is determined by the type of catheter placement performed on the patient, and different physiological parameter data requires different monitoring devices to acquire. That is, different catheters are used for different patients, and the physiological parameter data of the patients are obtained differently. For example, when a PICC is placed or a central vein is placed, Central Venous Pressure (CVP) may be acquired synchronously by a pressure monitoring device; for another example, when the catheter is placed in the floating catheter in the heart, the Right Atrial Pressure (RAP), the Right Ventricular Pressure (RVP), the pulmonary artery Pressure (PA), the Pulmonary Artery Wedge Pressure (PAWP), the Electrocardiogram (ECG), the blood Temperature (TB), etc. can be synchronously obtained through the multi-parameter monitor. It is to be understood that the monitoring devices and physiological parameter data described above are not limited to the above.
S102, generating a plurality of parameter characteristic signals according to the plurality of physiological parameter data.
It will be appreciated that there are many ways of generating corresponding parameter signature signals from physiological parameter data, two different examples of which are given below:
as an example, the specific implementation process for generating the plurality of parameter characteristic signals according to the plurality of physiological parameter data may be as follows: and extracting the characteristic values of the plurality of physiological parameter data, and generating a plurality of parameter characteristic signals from the characteristic values of the plurality of physiological parameter data.
It can be understood that different tissue parts of human body have different physiological parameter data and have their own individual differences. For example, as shown in fig. 2(a), in the case of a blood pressure (ART) waveform and a Central Venous Pressure (CVP) waveform of a radial artery blood vessel, the characteristics of the two waveforms are significantly different and have a very significant difference with the contraction and relaxation of the heart. The ART and CVP waveforms are different in amplitude, and the number, form, position, 1-cycle duration and start-stop time of the peaks, troughs and notches are different, and the secondary peaks and troughs are different.
Thus, the present invention utilizes the above principles to achieve a determination of the current position of the catheter. The feature values of the acquired physiological parameter data can be extracted, and then the extracted feature values are used for generating corresponding parameter feature signals, so that the current position of the catheter can be judged according to the parameter feature signals.
In the embodiment of the present invention, the number of the characteristic values may be one or more, and the characteristic values may include, but are not limited to, parameter measurement values, waveform amplitudes, waveform shapes, N periodic waves and typical wave durations, peaks, troughs, notch positions, and the like.
As another example, the specific implementation of the above-mentioned generating the plurality of parameter characteristic signals according to the plurality of physiological parameter data may be as follows: and finally, generating a plurality of parameter characteristic signals by using the characteristic values and the association relation values of the plurality of physiological parameter data after the association analysis.
It can be understood that, in addition to the characteristic values of the data themselves, the data collected at the same point location can effectively determine the current location, and meanwhile, there is a certain correlation relationship between the physiological parameter data, in order to improve the accuracy of the catheter location determination, in this example, correlation analysis may be performed between the physiological parameter data to calculate the correlation relationship value between the physiological parameter data, then, the characteristic values of the plurality of physiological parameter data after the correlation analysis are extracted, and finally, the extracted characteristic values and the correlation relationship values are used to generate corresponding parameter characteristic signals, for example, the physiological parameter data with a larger value of the correlation relationship value may be marked with a large proportion, the physiological parameter data with a smaller value of the correlation relationship value may be marked with a small proportion, and thus, the parameter characteristic signal generated according to the correlation value is used to facilitate the subsequent judgment of the position of the catheter according to the parameter characteristic signal, for example, the current position of the catheter can be judged according to the judgment result of the parameter characteristic signal with large reference weight. The calculation method of the correlation value may be weighting or windowing.
For example, as shown in fig. 2(b), taking physiological parameter data as a Central Venous Pressure (CVP) waveform and an Electrocardiogram (ECG) waveform as an example, characteristic values of the Central Venous Pressure (CVP) waveform can be extracted, including but not limited to: a wave, c wave, x wave, v wave, y wave, wave amplitude, duration, starting and ending time point, wave structure and the like of each characteristic wave; and extracting characteristic values of an Electrocardiogram (ECG) waveform, including but not limited to: p wave, QRS wave, T wave, U wave, time length characteristic value, amplitude value and the like; wherein, the duration characteristic value comprises: p-wave duration, PR interval, QT interval, etc.; the amplitude includes: p-wave amplitude, R-wave amplitude, ST-up or down amplitude, etc.
As shown in fig. 2(b), when the catheter is located in the central vein (which is pre-close to the right atrium), the acquired ECG and CVP waveforms have data association relationship values generated corresponding to the time-axis position relationship, in addition to their respective characteristic values, so as to enhance the accuracy of position determination. For example, the a-wave of CVP usually occurs at end diastole, i.e. after the P-wave, during the PR interval; the C wave of CVP usually appears at the end of QRS wave and RST connection, and the position relation can calculate the correlation value and takes the correlation value as a characteristic value. The characteristic value has obvious accuracy on position judgment under special pathological conditions.
In this way, after obtaining the characteristic value between the correlation value and the physiological parameter data after correlation analysis, the correlation value and the characteristic value may be used to generate a corresponding parameter characteristic signal, so as to determine the current position of the catheter according to the parameter characteristic signal.
And S103, matching the plurality of parameter characteristic signals with a position signal template established in advance.
Wherein it is understood that the location signal template may be pre-established. In one embodiment of the present invention, as shown in FIG. 3, the position signal template may be created by:
s301, when the catheter is placed on a sample patient, a plurality of sample physiological parameter data of the sample patient are obtained.
S302, extracting characteristic values of a plurality of sample physiological parameter data.
And S303, generating a plurality of sample parameter characteristic signals from the characteristic values of the plurality of sample physiological parameter data.
In order to improve the accuracy of the catheter position determination, preferably, in an embodiment of the present invention, a correlation analysis may be performed on a plurality of sample physiological parameter data, a correlation relationship value between the plurality of sample physiological parameter data is obtained, and finally, a corresponding sample parameter characteristic signal is generated according to the correlation relationship value and a characteristic value extracted from the sample physiological parameter data after the correlation analysis. In this way, in practical application, the sample parameter characteristic signal generated according to the correlation value is used to judge the catheter position, and the accuracy can be improved.
S304, establishing the corresponding relation between the plurality of sample parameter characteristic signals and the current position of the catheter in the human body structure.
That is, when the catheter is placed on the patient, the characteristics of the current physiological parameter data of the patient are related to the current position of the catheter in the human body structure, so that the corresponding relationship between the sample parameter characteristic signal and the current position of the catheter in the human body structure can be pre-established, so that in practical application, the position of the catheter can be determined according to the corresponding relationship and the current parameter characteristic signal.
S305, establishing a position signal template according to the corresponding relation and the plurality of sample parameter characteristic signals.
For example, the sample parameter signature may be summed with a correspondence of the current position of the catheter in the anatomy to generate the position signal template. It can be understood that the position signal template has templates of sample parameter characteristic signals corresponding to a plurality of kinds of catheters when the catheters are put in the tubes, and also suggests a template of a sample parameter characteristic signal corresponding to a certain single catheter when the catheter is put in the tubes.
For example, taking the location signal template for intracardiac floating catheter placement as an example, as shown in fig. 4, during intracardiac floating catheter placement, the floating catheter passes through the right atrium, right ventricle, pulmonary artery, and finally reaches the pulmonary arteriole. In this process, characteristic values of Right Atrial Pressure (RAP), Right Ventricular Pressure (RVP), pulmonary artery Pressure (PA), and Pulmonary Artery Wedge Pressure (PAWP) can be extracted, and in order to improve the accuracy of position determination, characteristic values of Electrocardiogram (ECG) and blood Temperature (TB), and correlation values of pressure parameters, electrocardiogram parameters, and temperature parameters are also extracted. And performing data processing on the characteristic value and the association relation value to generate a position signal template of each position point, for example, generating a right room position signal template through a right room pressure (RAP) characteristic value and an association relation value. And by analogy, generating a position signal template of the right ventricle, the pulmonary artery and the pulmonary arteriole.
Due to patient variability in signs and cases, optionally, in one embodiment of the invention, the user may be provided with a template setup module that allows the user to custom add, or revise, location signal templates.
In summary, the position signal template can be pre-established according to the above steps S301 to S305.
Therefore, the current position of the catheter can be finally judged according to the matching result by matching the plurality of parameter characteristic signals with the position signal template established in advance.
And S104, when the matching result meets a preset condition, determining the human body structure positions corresponding to the plurality of parameter characteristic signals.
And S105, determining the current position of the catheter according to the position of the human body structure.
For example, when a catheter is placed on a patient, the parameter characteristic signals may be generated in real time according to the above steps S101 and S102, and the parameter characteristic signals generated in real time are matched with the position signal templates established in advance one by one, for example, matching may be performed in a similarity calculation manner, then, whether the matching result meets a preset condition is determined, if yes, the body structure position corresponding to the parameter characteristic signals is found from the position signal templates, and finally, the current position of the catheter is determined according to the body structure position.
It should be noted that, in the embodiment of the present invention, the basis for determining whether the matching result meets the preset condition may be: if the extracted characteristic values are all main characteristic values (wherein the main characteristic values can be understood as the characteristics which can most embody the physiological parameter data), the matching result of each main characteristic value is required to be larger than the corresponding judgment threshold value; or, determining the characteristic values corresponding to the physiological parameter data having the association according to the association relation values, and determining that the matching results of the characteristic values are all larger than the corresponding judgment threshold values.
According to the method for judging the position of the catheter, disclosed by the embodiment of the invention, a plurality of physiological parameter data of a patient can be obtained, then a plurality of parameter characteristic signals can be generated according to the plurality of physiological parameter data, and finally, the current position of the catheter is determined according to a pre-established position signal template and the plurality of parameter characteristic signals. The method can realize the acquisition of physiological parameter data through the existing monitoring equipment, generate the acquired physiological parameter data into corresponding parameter characteristic signals, and accurately determine the current position of the catheter according to different parameter characteristic signals and a position signal template established in advance.
FIG. 5 is a flow chart of a method of determining a position of a catheter according to another embodiment of the present invention.
In order to improve the use experience and enable the user to know the current position of the catheter more intuitively, in the embodiment of the present invention, the current position of the catheter may be displayed in combination with a human body or tissue structure diagram. Specifically, as shown in fig. 5, the method for determining the position of the catheter may include:
s501, acquiring a plurality of physiological parameter data of a patient.
S502, generating a plurality of parameter characteristic signals according to the plurality of physiological parameter data.
It will be appreciated that there are many ways of generating corresponding parameter signature signals from physiological parameter data, two different examples of which are given below:
as an example, the specific implementation process for generating the plurality of parameter characteristic signals according to the plurality of physiological parameter data may be as follows: and extracting the characteristic values of the plurality of physiological parameter data, and generating a plurality of parameter characteristic signals from the characteristic values of the plurality of physiological parameter data.
As another example, the specific implementation of the above-mentioned generating the plurality of parameter characteristic signals according to the plurality of physiological parameter data may be as follows: and finally, generating a plurality of parameter characteristic signals by using the characteristic values and the association relation values of the plurality of physiological parameter data after the association analysis.
And S503, matching the plurality of parameter characteristic signals with a position signal template established in advance.
The position signal template may be pre-established, and the specific implementation process of pre-establishing the position signal template may be as described in fig. 3 above.
And S504, when the matching result meets a preset condition, determining the human body structure positions corresponding to the plurality of parameter characteristic signals.
And S505, determining the current position of the catheter according to the position of the human body structure.
S506, position confirmation information is generated according to the current position of the catheter.
For example, after determining the current position of the catheter, the position confirmation information corresponding to the current position of the catheter in the human body or the tissue structure, such as the information of which part of the human body the catheter is currently located, may be generated according to the current position of the catheter.
And S507, displaying the position confirmation information.
In the embodiment of the present invention, there are many display manners of the position confirmation information: for example, the position confirmation information may be displayed in a text form, or displayed in a voice broadcast manner, or displayed in a text + voice broadcast manner, or the like.
In order to enhance the use experience, preferably, in an embodiment of the present invention, a human body structure diagram may be provided, and the current position of the catheter may be displayed on the corresponding position of the human body structure diagram according to the position confirmation information. For example, a body structure map may be provided, and after generating the position confirmation information, the current position of the catheter may be displayed at a corresponding position of the body structure map by a position indication signal.
According to the method for judging the position of the catheter, after the current position of the catheter is determined, the position confirmation information can be generated according to the current position of the catheter and displayed, so that a user can know the current position of the catheter more intuitively, and the use experience is improved.
To further enhance the experience of use, preferably, in an embodiment of the present invention, the method for determining the position of the catheter may further include: and judging whether the current position of the catheter deviates from the reference position according to a pre-established reference position constraint condition, if so, generating reminding information and providing the reminding information for a user.
It will be appreciated that the reference location constraint may be generated in accordance with the principles of building a location signal template, and the same. Therefore, whether the current position of the catheter deviates from the reference position can be judged according to the reference position constraint condition, and if so, prompt or alarm is given so as to enable an operator to carry out timely correction or early warning measures. In the embodiment of the present invention, the reminding manner may include, but is not limited to: textual instructions, visual cues (including graphical displays, light signals, etc.), audio cues, and the like.
In summary, the present invention collects physiological parameter data of a patient through a monitoring device, performs data processing on the physiological parameter data to generate a parameter feature signal, and finally matches the generated parameter feature signal with a preset position signal template to determine and display a current position of a catheter.
Because each tissue part of the human body is different, the parameter characteristic signals of each part of the human body are different and have individuality, and when different pathological characteristics appear, the parameter characteristic signals are also different and have individuality, so that the current position of the catheter can be accurately determined according to the different parameter characteristic signals.
In addition, the monitoring device is used for physical sign monitoring of patients as a necessary device in clinical environments (including sickrooms, ICUs, operating rooms, emergency services and the like). After various clinical intubations, sign monitoring is often necessary to understand the sign status of the patient or the influence of the current medication on the patient's signs. Therefore, as long as monitoring equipment is used, the position of the catheter can be synchronously determined while physiological parameters are monitored, additional auxiliary equipment is not required to be introduced, the operation space during operation is saved, and the space constraint when medical staff carry out medical treatment on patients and the treatment hidden danger caused by inconvenient operation are avoided.
Meanwhile, the position of the catheter can be timely and effectively obtained by an operator, barrier limits on operation proficiency and experience are reduced, more medical workers can quickly and accurately know the current position of the catheter, and low efficiency and adverse effects caused by uncertainty and position deviation of the position of the catheter during artificial empirical intubation are avoided. In addition, the whole intubation process can be completed by only one operator, and other auxiliary personnel and auxiliary equipment are not needed, so that the effective utilization rate of medical resources is improved.
Corresponding to the methods for determining the position of a catheter provided in the above embodiments, an embodiment of the present invention further provides a device for determining the position of a catheter, and since the device for determining the position of a catheter provided in the embodiments of the present invention corresponds to the methods for determining the position of a catheter provided in the above embodiments, the embodiments of the method for determining the position of a catheter described above are also applicable to the device for determining the position of a catheter provided in this embodiment, and will not be described in detail in this embodiment. Fig. 6 is a schematic structural diagram of an apparatus for determining the position of a catheter according to an embodiment of the present invention. As shown in fig. 6, the apparatus 1000 for determining the position of a catheter may include: an acquisition module 100, a first generation module 200, a matching module 300, a first determination module 400, and a second determination module 500.
In particular, the acquisition module 100 is used to acquire a plurality of physiological parameter data of a patient.
The first generation module 200 is configured to generate a plurality of parameter characteristic signals according to a plurality of physiological parameter data.
As an example, as shown in fig. 7, the first generating module 200 may include: a first extraction unit 210 and a first generation unit 220. The first extraction unit 210 is configured to extract feature values of a plurality of physiological parameter data. The first generating unit 220 is configured to generate a plurality of parameter feature signals from feature values of a plurality of physiological parameter data.
As another example, as shown in fig. 8, the first generating module 200 may include: an association analysis unit 230, a second extraction unit 240, and a second generation unit 250. The correlation analysis unit 230 is configured to perform correlation analysis on the multiple physiological parameter data to obtain a correlation value between the multiple physiological parameter data. The second extraction unit 240 is configured to extract feature values of the plurality of physiological parameter data after the association analysis. The second generating unit 250 is configured to generate a plurality of parameter characteristic signals by associating the analyzed characteristic values of the plurality of physiological parameter data with the association relation values.
The matching module 300 is configured to match the plurality of parameter signatures with a pre-established location signal template.
The first determining module 400 is configured to determine human body structure positions corresponding to the plurality of parameter characteristic signals when the matching result satisfies a preset condition.
The second determination module 500 is configured to determine a current position of the catheter according to the position of the human body structure.
Further, in an embodiment of the present invention, as shown in fig. 9, the apparatus 1000 for determining the position of a catheter may further include: the preprocessing module 600 is used for pre-establishing a position signal template. In this embodiment, as shown in fig. 9, the preprocessing module 600 may include: an obtaining unit 610, an extracting unit 620, a generating unit 630, a first establishing unit 640, and a second establishing unit 650.
The obtaining unit 610 is configured to obtain a plurality of sample physiological parameter data of a sample patient when performing catheter catheterization on the sample patient. The extracting unit 620 is configured to extract feature values of the plurality of sample physiological parameter data. The generating unit 630 is configured to generate a plurality of sample parameter characteristic signals from the characteristic values of the plurality of sample physiological parameter data. The first establishing unit 640 is configured to establish a correspondence relationship between the plurality of sample parameter characteristic signals and a current position of the catheter in the human body structure. The second establishing unit 650 is configured to establish a position signal template according to the corresponding relationship and the plurality of sample parameter characteristic signals.
In order to enhance the use experience and enable the user to more intuitively know the current position of the catheter, further, in an embodiment of the present invention, as shown in fig. 10, the apparatus 1000 for determining the position of the catheter may further include: a second generation module 700 and a display module 800. Wherein the second generating module 700 is configured to generate the location confirmation information according to the current location of the catheter. The display module 800 is configured to display the position confirmation information.
Preferably, in an embodiment of the present invention, as shown in fig. 10, the display module 800 may include: a providing unit 810 and a display unit 820. The providing unit 810 can be used for providing the human body structure diagram. The display unit 820 is used for displaying the current position of the catheter at the corresponding position of the human body structure diagram according to the position confirmation information.
To further enhance the experience of use, preferably, in an embodiment of the present invention, as shown in fig. 11, the device 1000 for determining the position of the catheter may further include: a decision block 900 and a reminder block 910. The determining module 900 is configured to determine whether the current position of the catheter deviates from the reference position according to a pre-established reference position constraint condition. The reminding module 910 is configured to generate a reminding message when the current position of the catheter deviates from the reference position, and provide the reminding message to the user.
According to the device for judging the position of the catheter, disclosed by the embodiment of the invention, a plurality of physiological parameter data of a patient can be acquired through the acquisition module, the first generation module generates a plurality of parameter characteristic signals according to the plurality of physiological parameter data, and the determination module determines the current position of the catheter according to a pre-established position signal template and the plurality of parameter characteristic signals. The method can realize the acquisition of physiological parameter data through the existing monitoring equipment, generate the acquired physiological parameter data into corresponding parameter characteristic signals, and accurately determine the current position of the catheter according to different parameter characteristic signals and a position signal template established in advance.
In order to realize the embodiment, the invention further provides monitoring equipment.
Fig. 12 is a schematic structural diagram of a monitoring device according to an embodiment of the present invention. As shown in fig. 12, the monitoring apparatus 1200 may include: the device 1000 for determining the position of a catheter according to any of the above embodiments of the present invention.
According to the monitoring device provided by the embodiment of the invention, a plurality of physiological parameter data of a patient can be acquired, then a plurality of parameter characteristic signals can be generated according to the plurality of physiological parameter data, and finally, the current position of the catheter is determined according to a pre-established position signal template and the plurality of parameter characteristic signals. The method can realize the acquisition of physiological parameter data through the existing monitoring equipment, generate the acquired physiological parameter data into corresponding parameter characteristic signals, and accurately determine the current position of the catheter according to different parameter characteristic signals and a position signal template established in advance.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A method of determining the position of a catheter, comprising the steps of:
acquiring a plurality of physiological parameter data of a patient;
generating a plurality of parameter signature signals from the plurality of physiological parameter data; wherein said generating a plurality of parameter signature signals from said plurality of physiological parameter data comprises: performing correlation analysis on the plurality of physiological parameter data to obtain correlation relationship values among the plurality of physiological parameter data; extracting characteristic values of the plurality of physiological parameter data after correlation analysis; generating the plurality of parameter characteristic signals by using the characteristic values of the plurality of physiological parameter data after the correlation analysis and the correlation values; marking the characteristic value corresponding to the physiological parameter data with a large numerical value of the correlation relation value with a large specific gravity, marking the characteristic value corresponding to the physiological parameter data with a small numerical value of the correlation relation value with a small specific gravity, and judging the current position of the catheter according to the judgment result of the parameter characteristic signal with the large specific gravity;
matching the parameter characteristic signals with a position signal template established in advance;
when the matching result meets a preset condition, determining human body structure positions corresponding to the parameter characteristic signals;
determining the current position of the catheter according to the position of the human body structure;
generating position confirmation information according to the current position of the catheter and providing a human body structure diagram;
and displaying the current position of the catheter at the corresponding position of the human body structure diagram according to the position confirmation information.
2. The method of claim 1, wherein generating a plurality of parameter signature signals from the plurality of physiological parameter data comprises:
extracting characteristic values of the plurality of physiological parameter data;
generating the plurality of parameter characteristic signals from the characteristic values of the plurality of physiological parameter data.
3. The method of claim 1, wherein the location signal template is pre-established by:
obtaining a plurality of sample physiological parameter data of a sample patient;
extracting characteristic values of the plurality of sample physiological parameter data;
generating a plurality of sample parameter characteristic signals from the characteristic values of the plurality of sample physiological parameter data;
establishing a corresponding relation between the plurality of sample parameter characteristic signals and the current position of the catheter in the human body structure;
and establishing the position signal template according to the corresponding relation and the plurality of sample parameter characteristic signals.
4. The method of any of claims 1 to 3, further comprising:
judging whether the current position of the catheter deviates from a reference position according to a pre-established reference position constraint condition;
and if so, generating reminding information and providing the reminding information for the user.
5. An apparatus for determining a position of a catheter, comprising:
an acquisition module for acquiring a plurality of physiological parameter data of a patient;
a first generation module for generating a plurality of parameter characteristic signals from the plurality of physiological parameter data; wherein, the
The first generation module comprises: the correlation analysis unit is used for performing correlation analysis on the plurality of physiological parameter data to acquire correlation relation values among the plurality of physiological parameter data; the second extraction unit is used for extracting characteristic values of the plurality of physiological parameter data after the correlation analysis; a second generation unit, configured to generate the plurality of parameter characteristic signals from the characteristic values of the plurality of physiological parameter data after the correlation analysis and the correlation values; marking the characteristic value corresponding to the physiological parameter data with a large numerical value of the correlation relation value with a large specific gravity, marking the characteristic value corresponding to the physiological parameter data with a small numerical value of the correlation relation value with a small specific gravity, and judging the current position of the catheter according to the judgment result of the parameter characteristic signal with the large specific gravity;
the matching module is used for matching the parameter characteristic signals with a position signal template established in advance;
the first determining module is used for determining human body structure positions corresponding to the parameter characteristic signals when the matching result meets a preset condition;
the second determination module is used for determining the current position of the catheter according to the position of the human body structure;
a second generation module for generating location confirmation information according to the current location of the catheter;
a display module, configured to display the position confirmation information, where the display module includes:
the providing unit is used for providing a human body structure diagram;
and the display unit is used for displaying the current position of the catheter at the corresponding position of the human body structure diagram according to the position confirmation information.
6. The apparatus of claim 5, wherein the first generating module comprises:
a first extraction unit for extracting characteristic values of the plurality of physiological parameter data;
a first generating unit, configured to generate the plurality of parameter feature signals from the feature values of the plurality of physiological parameter data.
7. The apparatus of claim 6, further comprising:
the preprocessing module is used for establishing the position signal template in advance;
wherein the preprocessing module comprises:
an acquisition unit for acquiring a plurality of sample physiological parameter data of a sample patient;
an extraction unit for extracting characteristic values of the plurality of sample physiological parameter data;
a generating unit, configured to generate a plurality of sample parameter characteristic signals from the characteristic values of the plurality of sample physiological parameter data;
the first establishing unit is used for establishing the corresponding relation between the plurality of sample parameter characteristic signals and the current position of the catheter in the human body structure;
and the second establishing unit is used for establishing the position signal template according to the corresponding relation and the plurality of sample parameter characteristic signals.
8. The apparatus of any one of claims 5-7, further comprising:
the judging module is used for judging whether the current position of the catheter deviates from a reference position according to a pre-established reference position constraint condition;
and the reminding module is used for generating reminding information when the current position of the catheter deviates from the reference position, and providing the reminding information for a user.
9. A monitoring device, comprising: the device for determining the position of a catheter according to any of claims 5 to 8.
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| CN111312371B (en) * | 2020-02-14 | 2022-06-24 | 首都医科大学附属北京儿童医院 | Early warning method, server and system for endotracheal intubation of newborn |
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| EP2134403B1 (en) * | 2007-04-11 | 2012-12-12 | Elcam Medical Agricultural Cooperative Association Ltd. | System for accurate placement of a catheter tip in a patient |
| US20100049061A1 (en) * | 2008-08-21 | 2010-02-25 | Mr Holdings (Hk) Ltd. | Systems and methods for providing auditory feedback during catheter placement |
| KR101856267B1 (en) * | 2010-08-20 | 2018-05-09 | 씨. 알. 바드, 인크. | Reconfirmation of ecg-assisted catheter tip placement |
| ES2922673T3 (en) * | 2010-09-23 | 2022-09-19 | Bard Inc C R | Apparatus and method for catheter navigation using endovascular energy mapping |
| US20150216445A1 (en) * | 2012-08-15 | 2015-08-06 | Elcam Medical Agricultural Cooperative Association Ltd. | System and method for accurate placement of a catheter tip in a patient |
| CN104771161A (en) * | 2015-04-15 | 2015-07-15 | 深圳开立生物医疗科技股份有限公司 | Catheter tail end positioning method, device and system |
| CN105054922A (en) * | 2015-07-17 | 2015-11-18 | 深圳开立生物医疗科技股份有限公司 | Intravascular catheter location prompting method, device and system |
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