CN113674234A - Pressure damage detection method and system - Google Patents
Pressure damage detection method and system Download PDFInfo
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Abstract
The invention discloses a pressure injury detection method and a system, comprising the steps of selecting a corresponding interface to input patient information according to the hospitalization condition of a patient; setting shooting information; adjusting the position of a camera and the distance between the camera and the wound of the patient, wherein when the distance between the camera and the wound of the patient is within a set distance range, the camera takes a picture of the wound of the patient; calculating the corresponding wound area under the corresponding shooting information according to the shot wound picture of the patient, and judging the recovery condition of the wound of the patient; the shooting information is used for obtaining the wound treatment content. The invention ensures that the pictures taken by the nursing staff each time are basically consistent, improves the accuracy of picture taking and facilitates the diagnosis of wound information; meanwhile, the input of the patient information every time is guaranteed, continuous nursing of the patient based on last nursing is carried out according to the stored patient information, and the accuracy of wound judgment is further improved.
Description
Technical Field
The invention relates to the technical field of medical detection, in particular to a pressure injury detection method and system.
Background
The aged deteriorates the body function along with the aging, the quantity of elastic fibers and collagen in the skin is continuously reduced, the skin of the patient is dry, loose and poor in elasticity, the sensory perception is reduced, the function of the epidermal permeability barrier is easily damaged, the resistance to the external pressure and the friction force is obviously weakened, and the possibility of skin damage and pressure sores of the patient is increased.
In the prior art, in the process of nursing pressure sores, photos of pressure sore wounds need to be collected before nursing at every time, nursing staff who nurse and change dressings to patients in clinic are on duty, the nursing staff are not necessarily changed by the same nurse, even the same nurse cannot guarantee that the distance from the wounds to be shot at every time is within a required distance range, nurses in a ward area are not necessarily specialized nursing staff when taking photos, the nurses have beautiful faces or flash lamps when taking photos by themselves, the standards of the shot photos are different, and part of patient information is incomplete and cannot be continuous, tracking and evaluation are performed, follow-up scientific research cannot count data, when cloud consultation is carried out, if the photos are not standard, experts cannot judge some information of the wounds, and misjudgment is caused.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned conventional problems.
Therefore, the invention provides a pressure injury detection method and system, which can solve the problem that the wound information in the current medical detection cannot be accurately judged.
In order to solve the technical problems, the invention provides the following technical scheme: selecting a corresponding interface to input patient information according to the hospitalizing condition of the patient; setting shooting information; adjusting the position of a camera and the distance between the camera and the wound of the patient, wherein when the distance between the camera and the wound of the patient is within a set distance range, the camera takes a picture of the wound of the patient; calculating the corresponding wound area under the corresponding shooting information according to the shot wound picture of the patient, and judging the recovery condition of the wound of the patient; the shooting information is used for obtaining the wound treatment content.
As a preferable aspect of the method for detecting a stress damage according to the present invention, wherein: the shooting information comprises a shooting date i and a shooting serial number n of the wound.
As a preferable aspect of the method for detecting a stress damage according to the present invention, wherein: the method comprises the steps that after the shooting date i is set, a system automatically retrieves the shooting information before the shooting date i; if the shooting information before the shooting date i is stored, searching and finding the shooting date closest to the shooting date i to obtain the largest shooting serial number n-1 before the shooting date i and the corresponding wound treatment information; setting a shooting serial number n and new wound treatment information; if the shooting date before the shooting date i is not searched, the shooting number n is set to 1 and the nth wound treatment content is set.
As a preferable aspect of the method for detecting a stress damage according to the present invention, wherein: the method comprises the steps of comparing a newly shot wound picture with a stored wound picture which is good in recovery under a shooting serial number to obtain a wound recovery result; and if the wound is recovered well, treating the wound according to the wound treatment content under the shooting serial number n, otherwise, retreating the wound.
As a preferable aspect of the method for detecting a stress damage according to the present invention, wherein: the judgment comprises the steps of constructing a judgment model based on a cloud statistical theory of historical data of a wound of a patient; establishing an objective function by using the range frequency of the patient wound historical data,
Mk＝wRk+(1-w)Jk
Rk＝(Lk-Lmink)÷(Lmaxk-Lmink)
Jk＝(Rankk-1)÷(N-1)
wherein M isk: determination of wound type of said patient's wound history data, Rk: range function, Jk: frequency function, k: total wound type indicator value, N: detection of the Environment, Rankk: the type grade of the patient wound history data in the detection environment.
As a preferable aspect of the method for detecting a stress damage according to the present invention, wherein: further comprising adding the historical data average of all wound types and the current detected patient wound type average as decision factors to the objective function; defining the related data influencing wound detection as an error rate, substituting the error rate into the objective function to form the judgment model,
Dk＝W1Rk+W2(Fitk-Pi)+W3
Pi∈{Lmink，Lmaxk}
wherein, Pi: target wound rating, { Lmink，Lmaxk}: range of selectable target wound grades, Rk: range function, Fit, of alternative target wound typesk: average of most appropriate historical wound type to currently detected wound type, Dk: decision making judgment, W1: error-impacting error rate, W, of historical wound-grade data2: target wound level data error impact error rate, W3: detecting the influence error rate of environmental errors by historical and target wound grade data; the judgment model outputs a final judgment decision based on the parameter information.
As a preferable aspect of the pressure damage detection system of the present invention, wherein: the system comprises an image collector, an information transmission module, an information processing module and a main control module; the image collector is provided with a distance sensor and a pose sensor, the distance sensor sends a detected distance signal to the information transmission module, and the pose sensor sends collected pose information to the information transmission module; and the information transmission module transmits the received distance signal and the pose information to the information processing module.
As a preferable aspect of the pressure damage detection system of the present invention, wherein: the information processing module processes the distance signal and the pose signal to obtain the minimum distance between the image collector and the skin surface and the placing angle of the image collector; then sending the processed distance signal and the processed angle signal to the main control module; and the main control module sends a control instruction to the image collector according to the received and processed distance signal so as to control the on-off of the image collector.
As a preferable aspect of the pressure damage detection system of the present invention, wherein: the method also comprises the steps that if the detected distance value is within a set shooting distance range and the placing angle of the image collector is within a set angle range, the main control module controls the image collector to be powered on, otherwise, the main control module controls the image collector to be powered off; if the distance exceeds the set maximum distance threshold, the main control module sends a first voice prompt instruction to descend the image collector; if the distance is smaller than the set minimum distance threshold, the main control module sends a second voice prompt instruction to raise the image collector; if the placing angle of the image collector is not within the set angle range, the main control module analyzes the size of the adjusting angle of the image collector and sends a third voice prompt instruction, and an operator operates according to the voice prompt instruction according to the size of the adjusting angle in the front-back direction or the left-right direction of the image collector.
The invention has the beneficial effects that: the invention ensures that the pictures taken by the nursing staff each time are basically consistent, improves the accuracy of picture taking and facilitates the diagnosis of wound information; meanwhile, the input of the patient information every time is guaranteed, continuous nursing of the patient based on last nursing is carried out according to the stored patient information, and the accuracy of wound judgment is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic flow chart of a method and a system for detecting a pressure damage according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a test comparison curve of the pressure damage detection method and system according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, a first embodiment of the present invention provides a method for detecting a pressure injury, which specifically includes:
s1: and selecting a corresponding interface to input patient information according to the medical condition of the patient.
S2: and setting shooting information.
S3: adjust camera position and relative patient wound's distance, when the distance between camera and the patient wound was in the distance range of setting for, patient wound photo was shot to the camera.
S4: and calculating the corresponding wound area under the corresponding shooting information according to the shot wound picture of the patient, and judging the recovery condition of the wound of the patient.
S5: the shooting information is used for obtaining the wound treatment content.
It should be noted that the shooting information includes:
shooting date i and shooting serial number n of the wound;
after the shooting date i is set, the system automatically searches shooting information before the shooting date i;
if the shooting information before the shooting date i is stored, searching and finding the shooting date closest to the shooting date i to obtain the maximum shooting serial number n-1 before the shooting date i and the corresponding wound treatment information;
setting a shooting serial number n and new wound treatment information;
if the shooting date before the shooting date i is not searched, the shooting number n is set to 1 and the nth wound treatment content is set.
Specifically, it should be noted that:
comparing the newly shot wound picture with the wound picture which is recovered well under the stored shooting serial number to obtain a wound recovery result;
and if the wound is recovered well, treating the wound according to the wound treatment content under the shooting serial number n, otherwise, retreating the wound.
Further, the judging includes:
constructing a judgment model based on a patient wound historical data cloud statistical theory;
establishing an objective function by using the range frequency of the historical data of the wound of the patient,
Mk＝wRk+(1-w)Jk
Rk＝(Lk-Lmink)÷(Lmaxk-Lmink)
Jk＝(Rankk-1)÷(N-1)
wherein M isk: determination of wound type from historical patient wound data, Rk: range function, Jk: frequency function, k: total wound type indicator value, N: detection of the Environment, Rankk: the type level of the patient wound history data in the test environment.
Still further, still include:
adding the historical data average value of all wound types and the current detection patient wound type average value as decision factors into an objective function;
defining related data influencing wound detection as an error rate, substituting the error rate into an objective function to form a judgment model,
Dk＝W1Rk+W2(Fitk-Pi)+W3
Pi∈{Lmink，Lmaxk}
wherein, Pi: target wound rating, { Lmink，Lmaxk}: range of selectable target wound grades, Rk: range function, Fit, of alternative target wound typesk: average of most appropriate historical wound type to currently detected wound type, Dk: decision making judgment, W1: error-impacting error rate, W, of historical wound-grade data2: target wound level data error impact error rate, W3: detecting the influence error rate of environmental errors by historical and target wound grade data;
the judgment model outputs a final judgment decision based on the parameter information.
Preferably, the method ensures that the pictures taken by the nursing staff each time are basically consistent, improves the accuracy of picture taking, and facilitates the diagnosis of wound information; meanwhile, the input of the patient information every time is guaranteed, continuous nursing of the patient based on last nursing is carried out according to the stored patient information, and the accuracy of wound judgment is further improved.
In order to better verify and explain the technical effects adopted in the method, the embodiment of the invention selects a traditional manual experience judgment method to perform a comparison test with the method of the invention, and compares test results by means of scientific demonstration to verify the real effect of the method of the invention.
In order to verify that the method of the present invention has higher accuracy of wound detection and judgment compared with the conventional method, the present embodiment respectively performs real-time test and comparison on the wound type of the simulation platform by using the conventional method and the method of the present invention.
And (3) testing environment: establishing a three-dimensional patient model, importing the three-dimensional patient model into a simulation platform to run a simulation wound detection scene, judging by manual experience of a traditional method to perform detection test and record test result data, starting automatic test equipment and using MATLB to realize simulation test of the method according to the invention by the method of the invention, obtaining simulation data according to the experiment result, testing 100 groups of data in each method, calculating the time for obtaining each group of data, and performing error comparison calculation with the predicted value input by simulation.
Referring to fig. 2, a solid line is a curve output by the method of the present invention, a dotted line is a curve output by a conventional method, and according to the schematic diagram of fig. 2, it can be seen intuitively that the solid line and the dotted line show different trends along with the increase of time, the solid line shows a stable rising trend in the former period compared with the dotted line, although the solid line slides down in the latter period, the fluctuation is not large and is always above the dotted line and keeps a certain distance, and the dotted line shows a large fluctuation trend and is unstable, so that the accurate state of the solid line is always greater than that of the dotted line, i.e. the true effect of the method of the present invention is verified.
Example 2
Different from the first embodiment, the present embodiment provides a pressure damage detection system, which specifically includes an image collector, an information transmission module, an information processing module, and a main control module.
The image collector is provided with a distance sensor and a pose sensor, the distance sensor sends a detected distance signal to the information transmission module, and the pose sensor sends collected pose information to the information transmission module;
and the information transmission module transmits the received distance signal and pose information to the information processing module.
Specifically, the information processing module processes the distance signal and the pose signal to obtain the minimum distance between the image collector and the skin surface and the placement angle of the image collector; then the processed distance signal and angle signal are sent to a main control module; and the main control module sends a control instruction to the image collector according to the received processed distance signal so as to control the power on and off of the image collector.
Still further, this embodiment should be further explained as follows:
if the detected distance value is within the set shooting distance range and the placing angle of the image collector is within the set angle range, the main control module controls the image collector to be powered on, otherwise, the main control module controls the image collector to be powered off;
if the distance exceeds the set maximum distance threshold, the main control module sends a first voice prompt instruction to descend the image collector;
if the distance is smaller than the set minimum distance threshold, the main control module sends a second voice prompt instruction to raise the image collector;
if the placing angle of the image collector is not within the set angle range, the main control module analyzes the size of the adjusting angle of the image collector, a third voice prompt instruction is sent, the size of the adjusting angle of the image collector in the front-back direction or the left-right direction is adjusted, and an operator operates according to the voice prompt instruction.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein. A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
As used in this application, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of example, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. A method for detecting pressure damage is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
selecting a corresponding interface to input patient information according to the hospitalizing condition of the patient;
setting shooting information;
adjusting the position of a camera and the distance between the camera and the wound of the patient, wherein when the distance between the camera and the wound of the patient is within a set distance range, the camera takes a picture of the wound of the patient;
calculating the corresponding wound area under the corresponding shooting information according to the shot wound picture of the patient, and judging the recovery condition of the wound of the patient;
the shooting information is used for obtaining the wound treatment content.
2. The pressure damage detection method according to claim 1, characterized in that: the shooting information comprises a shooting date i and a shooting serial number n of the wound.
3. The pressure damage detection method according to claim 2, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
after the shooting date i is set, the system automatically retrieves the shooting information before the shooting date i;
if the shooting information before the shooting date i is stored, searching and finding the shooting date closest to the shooting date i to obtain the largest shooting serial number n-1 before the shooting date i and the corresponding wound treatment information;
setting a shooting serial number n and new wound treatment information;
if the shooting date before the shooting date i is not searched, the shooting number n is set to 1 and the nth wound treatment content is set.
4. The pressure damage detection method according to claim 2 or 3, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
comparing the newly shot wound picture with the stored wound picture which is recovered well under the shooting serial number to obtain a wound recovery result;
and if the wound is recovered well, treating the wound according to the wound treatment content under the shooting serial number n, otherwise, retreating the wound.
5. The pressure damage detection method according to claim 4, characterized in that: the determining includes determining, based on the received signal,
constructing a judgment model based on a patient wound historical data cloud statistical theory;
establishing an objective function by using the range frequency of the patient wound historical data,
Mk＝wRk+(1-w)Jk
Rk＝(Lk-Lmink)÷(Lmaxk-Lmink)
Jk＝(Rankk-1)÷(N-1)
wherein M isk: determination of wound type of said patient's wound history data, Rk: range function, Jk: frequency function, k: total wound type indicator value, N: detection of the Environment, Rankk: the type grade of the patient wound history data in the detection environment.
6. The pressure damage detection method according to claim 5, characterized in that: also comprises the following steps of (1) preparing,
adding the historical data average value of all wound types and the current detection patient wound type average value as decision factors into the objective function;
defining the related data influencing wound detection as an error rate, substituting the error rate into the objective function to form the judgment model,
Dk＝W1Rk+W2(Fitk-Pi)+W3
Pi∈{Lmink，Lmaxk}
wherein, Pi: target wound rating, { Lmink，Lmaxk}: range of selectable target wound grades, Rk: range function, Fit, of alternative target wound typesk: average of most appropriate historical wound type to currently detected wound type, Dk: decision making judgment, W1: error-impacting error rate, W, of historical wound-grade data2: target wound level data error impact error rate, W3: detecting the influence error rate of environmental errors by historical and target wound grade data;
the judgment model outputs a final judgment decision based on the parameter information.
7. A pressure damage detection system, characterized by: the system comprises an image collector, an information transmission module, an information processing module and a main control module;
the image collector is provided with a distance sensor and a pose sensor, the distance sensor sends a detected distance signal to the information transmission module, and the pose sensor sends collected pose information to the information transmission module;
and the information transmission module transmits the received distance signal and the pose information to the information processing module.
8. The pressure injury detection system of claim 7, wherein: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the information processing module processes the distance signal and the pose signal to obtain the minimum distance between the image collector and the skin surface and the placement angle of the image collector;
then sending the processed distance signal and the processed angle signal to the main control module;
and the main control module sends a control instruction to the image collector according to the received and processed distance signal so as to control the on-off of the image collector.
9. The pressure injury detection system of claim 7 or 8, wherein: also comprises the following steps of (1) preparing,
if the detected distance value is within a set shooting distance range and the placing angle of the image collector is within a set angle range, the main control module controls the image collector to be powered on, otherwise, the main control module controls the image collector to be powered off;
if the distance exceeds the set maximum distance threshold, the main control module sends a first voice prompt instruction to descend the image collector;
if the distance is smaller than the set minimum distance threshold, the main control module sends a second voice prompt instruction to raise the image collector;
if the placing angle of the image collector is not within the set angle range, the main control module analyzes the size of the adjusting angle of the image collector and sends a third voice prompt instruction, and an operator operates according to the voice prompt instruction according to the size of the adjusting angle in the front-back direction or the left-right direction of the image collector.
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