CN-122005889-A - Intelligent disinfection control method and device for electric otoscope

CN122005889ACN 122005889 ACN122005889 ACN 122005889ACN-122005889-A

Abstract

The invention relates to an intelligent disinfection control method and device for an electric otoscope, wherein the method comprises the steps of synchronously collecting pollution spectrum data, ultraviolet intensity reference data, disinfection temperature and humidity data and probe insertion state signals of an endoscopic optical window at the front end of a probe to obtain a disinfection initial state vector before disinfection is started, calculating a dynamic pollution index according to historical use frequency and adjacent use time intervals of the disinfection initial state vector and the probe, matching basic disinfection parameters according to the dynamic pollution index and a preset disinfection mapping table, carrying out parameter dynamic calibration on the basic disinfection parameters according to the deviation degree of the index to generate a personalized disinfection protocol, carrying out process protection control in the process of executing the personalized disinfection protocol, and carrying out accumulated ultraviolet dose standard reaching verification and pollution spectrum data comparison verification after disinfection is finished. The invention obviously improves the reliability of the disinfection process and avoids the risk of cross infection caused by human negligence.

Inventors

GUAN XIAOLI
LU XIANG
ZENG MING
ZHOU MIN
XIANG WEN
XIE LI

Assignees

华中科技大学同济医学院附属同济医院

Dates

Publication Date: 20260512
Application Date: 20260109

Claims (10)

1. An intelligent disinfection control method for an electric otoscope is characterized by comprising the following steps: Before disinfection is started, a sensor array arranged on a detachable probe base of the electric otoscope is used for synchronously collecting pollution spectrum data, ultraviolet intensity reference data, disinfection temperature and humidity data and probe insertion state signals of an endoscopic optical window at the front end of the probe to obtain a disinfection initial state vector; calculating a dynamic pollution index according to the disinfection initial state vector and the historical use frequency and the adjacent use time interval of the probe; Matching basic disinfection parameters according to the dynamic pollution index and a preset disinfection mapping table, and carrying out parameter dynamic calibration on the basic disinfection parameters according to the index deviation degree to generate a personalized disinfection protocol comprising an irradiation mode and a dose; Performing process protection control according to ultraviolet intensity reference data, disinfection temperature and humidity data and a preset threshold value in the process of executing the personalized disinfection protocol; And after the sterilization is finished, carrying out accumulated ultraviolet dose standard-reaching verification and pollution spectrum data comparison verification, wherein after the standard-reaching verification and the comparison verification are passed, writing a sterilization completion state and a circulating check code into a radio frequency identification chip carried by the probe, and carrying out hardware interlocking on a circuit of the electric ear mirror when the probe is reinstalled.
2. The intelligent disinfection control method for an electric otoscope according to claim 1, wherein after the detachable probe of the electric otoscope is physically connected with the base of the host computer and the power is turned on, an insertion state signal of the probe is detected by a photoelectric sensor arranged in the base, and when the insertion state signal confirms that the probe is stably positioned in the disinfection chamber, a synchronous acquisition instruction of the sensor array is triggered; The sensor array comprises an ultraviolet visible spectrum sensor arranged at the top of the disinfection chamber, an ultraviolet radiation reference sensor arranged on the wall of the chamber and a temperature and humidity sensor arranged in the chamber.
3. The intelligent disinfection control method for an electric otoscope according to claim 1, wherein the calculation formula of the dynamic pollution index is: ; Wherein: ; ; ; ; Wherein, the Absorbance/reflectance values measured at a set of characteristic wavelengths; Including biofilms and particulates; noise floor threshold for corresponding wavelength; a maximum measurement range allowed for the system; Measuring the inverse weight of uncertainty for each wavelength; Is a spectral gradient; Is the average absorbance; Penalty index for non-uniformity; As a complementary error function; , Dominant time constants of the first process and the second process respectively; , the stretching parameters of the first process and the second process are respectively; For using the accumulation factor; is a polynomial expansion coefficient; , reference environmental coefficients for temperature and relative humidity; amplifying the coefficient for the coupling effect; To be in history information Under the condition of Conditional probability of risk-like event; is the first The relative risk of risk-like events; for probability estimation Is a variance of (2); is the first Probability estimation of risk-like events; is the number of risk events; is a saturated subtraction operator; a weighted fusion operator; Is a spectral pollution index; Is the temperature; is relative humidity; ; Is the water activity.
4. The intelligent disinfection control method for an electric otoscope according to claim 1, wherein the preset disinfection mapping table is a three-layer preset disinfection mapping table; The first layer is a pollution level and basic parameter mapping table and is used for discretely mapping continuous dynamic pollution indexes into a plurality of pollution levels and presetting a group of basic disinfection parameters for each level, wherein the basic disinfection parameters comprise a basic ultraviolet irradiation dose, a basic irradiation power, a basic irradiation duration and a basic irradiation mode; the second layer is a probe type and correction coefficient table and is used for matching corresponding optical material transmittance correction coefficients, geometric structure attenuation coefficients and thermal sensitivity coefficients according to probe type identifiers read in the radio frequency identification chip of the probe carrier tape; The third layer is an environment compensation table and is used for providing an ultraviolet lamp efficiency temperature compensation coefficient and an environment humidity influence coefficient according to the real-time temperature and the relative humidity in the disinfection temperature and humidity data.
5. The intelligent disinfection control method for an electric otoscope of claim 4, wherein dynamically calibrating said base disinfection parameters according to an exponential deviation degree, generating a personalized disinfection protocol comprising an irradiation pattern and a dose further comprises: According to the dynamic pollution index threshold range corresponding to the current pollution level obtained from the first layer pollution level and the basic parameter mapping table, calculating an index deviation degree factor; Reading an optical material transmittance correction coefficient, a geometric structure attenuation coefficient and a thermal sensitivity coefficient of a current probe from a second-layer probe type and correction coefficient table, and acquiring an ultraviolet lamp efficiency temperature compensation coefficient and an environment humidity influence coefficient corresponding to the current real-time temperature and relative humidity from a third-layer environment compensation table; And dynamically correcting the probe and environment comprehensive correction factor matrix according to the intensity compensation coefficient and the time compensation coefficient, and packaging the probe and environment comprehensive correction factor matrix into a structured protocol object comprising an irradiation mode and a dose, wherein the structured protocol object comprises a protocol ID, a probe mark, a protocol generation time stamp, a calibration parameter set and an expected accumulated dose target value.
6. The intelligent disinfection control method for an electric otoscope according to claim 1, wherein a closed-loop dose regulation loop is constructed by ultraviolet intensity reference data and a real-time ultraviolet radiation sensor feedback value during disinfection execution; the method comprises the steps of dividing a preset accumulated ultraviolet dose target value into target sub-doses of a plurality of time slices, comparing deviation between actual accumulated doses and the target sub-doses when each time slice is finished, dynamically adjusting ultraviolet lamp driving current or pulse duty ratio of the next time slice according to deviation direction and amplitude if the deviation exceeds a preset tolerance threshold, and outputting corrected irradiation parameter instructions by the closed-loop dose regulating circuit.
7. The intelligent disinfection control method for an electric otoscope according to claim 1, wherein when the probe is reinstalled to the electric otoscope host, the host reads a disinfection completion state and a cyclic check code stored in the radio frequency identification chip through near field communication and performs hardware interlock verification; The method comprises the steps of checking whether a cyclic check code is consistent with a locally generated hash value, prohibiting equipment starting and prompting disinfection record abnormality if the cyclic check code is inconsistent with the locally generated hash value, further comparing whether the time difference between the current system time and a protocol generation time stamp exceeds a preset expiration threshold value if the time difference is consistent with the preset expiration threshold value, regarding disinfection failure and forcing the current system time and the protocol generation time stamp to enter a state to be disinfected if the time difference exceeds the expiration threshold value, and simultaneously writing a current use event into a use frequency counter of a chip by a host and updating adjacent use time interval parameters.
8. The intelligent disinfection control method for an electric otoscope of claim 1, further comprising: continuously monitoring a probe insertion state signal and an environmental temperature and humidity change rate when the electric ear mirror host is in a standby state; When the probe is detected to be removed and the next use time interval is expected to be smaller than a preset threshold value, the ultraviolet lamp preheating circuit is activated in advance and the micro-positive pressure drying airflow of the cavity is maintained; when the probe is reinserted and the insertion status signal stabilizes, the sensor array is started to collect synchronously and take the pre-load protocol as an initial guess value.
9. An intelligent disinfection control device for an electric otoscope, comprising: The initial state sensing module is used for synchronously acquiring pollution spectrum data, ultraviolet intensity reference data, disinfection temperature and humidity data and probe insertion state signals of the endoscopic optical window at the front end of the probe through a sensor array arranged on the detachable probe base of the electric otoscope before disinfection is started to obtain a disinfection initial state vector; the dynamic pollution evaluation module is used for calculating a dynamic pollution index according to the disinfection initial state vector, the historical use frequency of the probe and the adjacent use time interval; the personalized protocol generation module is used for matching basic disinfection parameters according to the dynamic pollution index and a preset disinfection mapping table, carrying out parameter dynamic calibration on the basic disinfection parameters according to the index deviation degree, and generating a personalized disinfection protocol comprising an irradiation mode and a dose; The process safety monitoring module is used for performing process protection control according to the ultraviolet intensity reference data, the disinfection temperature and humidity data and a preset threshold value in the process of executing the personalized disinfection protocol; the sterilization verification and interlocking writing module is used for carrying out accumulated ultraviolet dose standard-reaching verification and pollution spectrum data comparison verification after sterilization is finished, wherein a sterilization completion state and a circulation verification code are written into the radio frequency identification chip carried by the probe after the standard-reaching verification and comparison verification are passed, and the sterilization completion state and the circulation verification code are used for carrying out hardware interlocking on the circuit of the electric ear mirror when the probe is reinstalled.
10. A computer device comprising a processor, a memory, a communication interface and a communication bus, said processor, said memory and said communication interface completing communication with each other through said communication bus; the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the intelligent disinfection control method for the electric otoscope.

Description

Intelligent disinfection control method and device for electric otoscope Technical Field The invention relates to the technical field of medical equipment sterilization, in particular to an intelligent sterilization control method and device for an electric otoscope and computer equipment. Background The electric otoscope is used as one of the most commonly used examination tools in otorhinolaryngology, and the probe of the electric otoscope is in direct contact with the external auditory meatus and even the tympanic membrane area of a patient, so that pollutants such as earwax, secretion, microorganism and even blood are very easy to be contaminated. If the sterilization is not carried out effectively, cross infection is very easy to cause, hospital Acquired Infection (HAI) can be caused when serious, and the health of patients and medical staff is threatened. The world health organization and the disease control centers clearly require strict disinfection or sterilization procedures for the reused endoscopic instruments. Most of traditional electric otoscope disinfection modes rely on manual wiping or soaking of chemical disinfectants, so that the efficiency is low, the operation is not standard, the disinfection thoroughness is difficult to ensure, and part of high-end equipment introduces ultraviolet disinfection, but the irradiation parameters of the high-end equipment are mostly in a fixed mode and cannot be dynamically adjusted, so that the optical elements are damaged by excessive disinfection or the hidden danger of infection is left due to insufficient disinfection, and the high requirements of modern medical treatment on traceability and safety are difficult to meet. For example, ultraviolet irradiation is automatically initiated for a fixed period of time (e.g., 30 seconds or 60 seconds) after probe insertion, and the same dose is administered regardless of whether the probe is clean or severely contaminated. Few high-end products are added with ultraviolet intensity sensors or temperature sensors for rough feedback, but are only used for fault alarm or simple start-stop control, and no pollution information is acquired. In order to solve the problems, the invention provides an intelligent disinfection control method for an electric otoscope, which is used for improving the reliability of a disinfection process and avoiding the risk of cross infection caused by human negligence. Disclosure of Invention In view of the above problems, the invention provides an intelligent disinfection control method and device for an electric otoscope and computer equipment. According to one aspect of the present invention, there is provided an intelligent disinfection control method for an electric otoscope, comprising: Before disinfection is started, a sensor array arranged on a detachable probe base of the electric otoscope is used for synchronously collecting pollution spectrum data, ultraviolet intensity reference data, disinfection temperature and humidity data and probe insertion state signals of an endoscopic optical window at the front end of the probe to obtain a disinfection initial state vector; calculating a dynamic pollution index according to the disinfection initial state vector and the historical use frequency and the adjacent use time interval of the probe; Matching basic disinfection parameters according to the dynamic pollution index and a preset disinfection mapping table, and carrying out parameter dynamic calibration on the basic disinfection parameters according to the index deviation degree to generate a personalized disinfection protocol comprising an irradiation mode and a dose; Performing process protection control according to ultraviolet intensity reference data, disinfection temperature and humidity data and a preset threshold value in the process of executing the personalized disinfection protocol; And after the sterilization is finished, carrying out accumulated ultraviolet dose standard-reaching verification and pollution spectrum data comparison verification, wherein after the standard-reaching verification and the comparison verification are passed, writing a sterilization completion state and a circulating check code into a radio frequency identification chip carried by the probe, and carrying out hardware interlocking on a circuit of the electric ear mirror when the probe is reinstalled. In an alternative mode, after the detachable probe of the electric ear mirror is physically connected with the base of the host computer and is powered on, an insertion state signal of the probe is detected through a photoelectric sensor arranged in the base, and when the insertion state signal confirms that the probe is stably positioned in the disinfection cavity, a synchronous acquisition instruction of the sensor array is triggered; The sensor array comprises an ultraviolet visible spectrum sensor arranged at the top of the disinfection chamber, an ultraviolet radiation reference sensor ar