CN113295925A - State detection and control device - Google Patents
State detection and control device Download PDFInfo
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- CN113295925A CN113295925A CN202110499688.2A CN202110499688A CN113295925A CN 113295925 A CN113295925 A CN 113295925A CN 202110499688 A CN202110499688 A CN 202110499688A CN 113295925 A CN113295925 A CN 113295925A
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Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00875—Resistance or impedance
Abstract
The invention relates to a state detection and control device, which is used for detecting the state of a handle of a freezing instrument, wherein the surface of the handle of the freezing instrument, which is close to a region to be frozen, is provided with at least two electrodes, and the device comprises: providing an excitation electrical signal to at least one pair of electrodes; acquiring output electric signals of the pair of electrodes; calculating an impedance value corresponding to the electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal; and the impedance value judges the state of the handle according to the change quantity of the impedance value in a preset monitoring period. This application is direct through detect with treat that the handle state of freezing appearance is judged to the impedance value that the electrode of freezing regional contact corresponds, can detect out the handle state of freezing appearance more timely, accurately and comprehensively, improves intelligence, convenience and the security of freezing appearance.
Description
Technical Field
The application belongs to the technical field of medical equipment, and particularly relates to a state detection and control device.
Background
With the increasing living standard of people, the problems of body and skin such as acne caused by obesity, poor body, skin pigmentation and excessive secretion of oil from sebaceous glands gradually increase the demand of various body-building and beauty-care products, wherein the effects of losing weight, removing pigment and acne can be achieved by freezing the skin. However, during the freezing process, over-treatment may occur, resulting in skin damage, or a desired therapeutic effect may not be achieved and side effects are significant. For example, freezing liposolution causes skin frostbite, freezing to remove pigments causes discoloration, and freezing to remove acne causes incomplete removal of acne.
In summary, although the freezing technology can achieve the effects of reducing fat, inhibiting pigment generation and treating acne, the prior art has difficulty in avoiding skin frostbite and excessive treatment of skin pigment deposition in the process of freezing and dissolving fat or achieving effective acne treatment effect.
Disclosure of Invention
In view of the above, it is necessary to provide a state detection and control device capable of detecting the state of a refrigeration instrument in real time during the process of freezing a region to be frozen, so as to effectively improve the intelligence, safety and reliability of the freezing process of the refrigeration instrument.
To achieve the above and other objects, a first aspect of the present application provides a state detecting device for detecting a state of a handle of a freezing apparatus to improve intelligence, convenience of use and safety of the freezing apparatus, the handle of the freezing apparatus having at least two electrodes disposed on a surface thereof near an area to be frozen, the device including a controller electrically connected to each of the electrodes, the controller being configured to:
controlling an excitation source to provide an excitation electrical signal to at least one pair of electrodes;
acquiring output electric signals of the pair of electrodes;
calculating an impedance value corresponding to the electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal;
judging the state of the handle according to the change of the impedance value in a preset monitoring period, wherein the state of the handle comprises a normal freezing treatment state, a falling event, an unfreezing treatment state, a shifting event and a freezing working state of a freezing area;
and if the reduction of the impedance value in the preset monitoring period is greater than or equal to a first preset reduction threshold, judging that the handle is in the freezing working state of the freezing area, wherein the first preset reduction threshold is greater than zero.
In the state detection device in the above embodiment, since the impedance value of the to-be-frozen region in the normal state should be within the stable impedance range and have small variation, when the to-be-frozen region is frozen, the local liquid therein may be frozen, and the liquid phase change may cause the electrical conductivity to change abruptly, resulting in the impedance value measured through the electrode in contact with the to-be-frozen region changing abruptly and having large variation. Therefore, according to the application, the plurality of electrodes are arranged on the surface, close to the area to be frozen, of the handle of the freezing instrument, the excitation electric signals are provided for at least one pair of electrodes, the impedance values corresponding to the electrodes are calculated according to the amplitude of the excitation electric signals and the amplitude of the output electric signals, and the state of the handle is judged according to the change quantity of the impedance values in the preset monitoring period. In other words, the handle state of the freezing instrument is detected by detecting the change of the conductivity of the area to be frozen by the electrodes, so that corresponding countermeasures can be taken in time, and the use safety and the effectiveness of the freezing instrument are improved. In addition, a plurality of uniformly distributed electrodes can be arranged on the surface of the handle of the freezing instrument, which is close to the area to be frozen, so that the change of the conductivity of the area to be frozen can be comprehensively detected, and the detection blind zone caused by the large area and the nonuniform temperature distribution of the area to be frozen can be avoided, and all events can not be completely and accurately and timely detected. For traditional handle state that utilizes temperature sensor to detect the temperature value of treating freezing region and come indirect detection refrigeration appearance, be influenced by temperature sensor's sensitivity, need great temperature variation just can discern effective signal, this application is direct to judge or the handle state of refrigeration appearance through the impedance value that detects the electrode that treats freezing region contact, can be more timely, accurately discern the slight change of freezing region, therefore can be more timely, accurately and detect out the handle state of refrigeration appearance comprehensively, improve the intelligence of refrigeration appearance, convenience in use and security, and reduce the dependence to user's operation experience.
In one embodiment, the determining the state of the handle according to the variation of the impedance value in the preset monitoring period includes:
acquiring a curve of the impedance value changing along with time;
and judging the state of the handle according to the curve.
In the state detection device in the above embodiment, because the change of the state of the freezing region causes the change of the impedance of the freezing region in the process of freezing the region to be frozen, the variation of the impedance value corresponding to the electrode in contact with the freezing region along with the change of time can be obtained according to the curve, so that the state of the handle of the freezing instrument can be timely, accurately and comprehensively judged according to the variation of the impedance value in the preset monitoring period, and the intelligence, the use safety and the effectiveness of the freezing instrument are improved.
In one embodiment, the determining the state of the handle according to the curve includes:
and if the variation of the impedance value in the preset monitoring period is within the range of a preset stable threshold value, judging that the handle is in a normal freezing treatment state.
In one embodiment, the determining the state of the handle according to the curve includes:
if the increment of the impedance values in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, judging that the handle is in a falling-off event and/or the handle is in a non-freezing treatment state, wherein the first preset increment threshold value is larger than zero.
In one embodiment, the determining the state of the handle according to the curve includes:
if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in the two adjacent preset monitoring periods, the handle is judged to have a displacement event and/or is judged to be in a non-freezing treatment state, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
In one embodiment, the excitation electrical signal includes at least one of a dc electrical signal, an ac electrical signal, or a pulsed electrical signal having an amplitude within a predetermined range.
In one embodiment, the providing the excitation electrical signal to the at least one pair of electrodes comprises:
providing an excitation electrical signal to an adjacent pair of electrodes; and/or
One electrode is selected as a common electrode, and electrode pairs are formed with different electrodes, respectively, to supply an excitation electric signal to each of the electrode pairs.
In one embodiment, the freezing apparatus comprises at least one of a frozen liposoluble apparatus, a frozen depigmentation apparatus, and a frozen acne treatment apparatus.
A second aspect of the present application provides a condition monitoring device for detecting and controlling an operating condition of a handle of a cryoscope to improve intelligence, ease of use, and safety of the cryoscope, the handle of the cryoscope being provided with at least two electrodes adjacent to a surface of an area to be frozen, the device comprising a controller electrically connected to each of the electrodes, the controller being configured to:
controlling an excitation source to provide an excitation electrical signal to at least one pair of electrodes;
acquiring output electric signals of the pair of electrodes;
calculating an impedance value corresponding to an electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal, and controlling the working state of the handle according to the change of the impedance value in a preset monitoring period, wherein the control of the working state of the handle comprises the control of the refrigeration temperature of the handle to be constant and the control of the handle to execute a preset action, and the preset action comprises at least one of the steps of stopping refrigeration, lifting up, increasing temperature, turning off a power supply and recording movement information;
and if the decrement of the impedance value in a preset monitoring period is larger than or equal to the first preset decrement threshold, controlling the handle to lift and/or controlling the handle to raise the temperature, wherein the first preset decrement threshold is larger than zero.
In the state monitoring device in the above embodiment, the working state of the handle of the refrigeration instrument is controlled by detecting the change of the impedance value of the area to be refrigerated by using the electrode, and corresponding countermeasures are taken in time, so that the use safety and the effectiveness of the refrigeration instrument are improved. For traditional handle state that utilizes temperature sensor to detect the temperature value of treating freezing region and come indirect detection refrigeration appearance, be influenced by temperature sensor's sensitivity, need great temperature variation just can discern effective signal, the handle state of refrigeration appearance is judged through the impedance value that the electrode that this application is direct to be through detecting and treating freezing region contact, can be more timely, accurately discern the slight change of treating freezing region, therefore can be more timely, accurately control the operating condition of refrigeration appearance handle, improve the intelligence of refrigeration appearance, convenience in utilization and security.
In one embodiment, the controlling the operating state of the handle according to the change of the impedance value in the preset monitoring period includes:
acquiring a curve of the impedance value changing along with time;
and controlling the working state of the handle according to the curve.
In the state monitoring device in the above embodiment, since the change of the state of the freezing region causes the change of the impedance thereof in the process of freezing the region to be frozen, the change of the impedance value corresponding to the electrode in contact with the region to be frozen along with the change of time is obtained by obtaining the curve of the impedance value corresponding to the electrode in contact with the region to be frozen along with the change of time, so as to control the working state of the handle according to the change of the impedance value, thereby improving the use safety and the effectiveness of the freezing instrument.
In one embodiment, the controlling the operating state of the handle according to the curve comprises:
and if the variation of the impedance value in the preset monitoring period is within the preset stable threshold range, controlling the refrigerating temperature of the handle to be unchanged.
In one embodiment, the controlling the operating state of the handle according to the curve comprises:
and if the increment of the impedance value in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, controlling the handle to execute a first preset action, wherein the first preset increment threshold value is larger than zero.
In one embodiment, the controlling the operating state of the handle according to the curve comprises:
and if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in the two adjacent preset monitoring periods, controlling the handle to execute a third preset action, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
In one embodiment, controlling the handle to perform the first preset action includes:
and controlling the handle to stop refrigerating and/or alarming.
In one embodiment, controlling the handle to perform the third preset action includes:
and controlling the handle to turn off the power supply and/or record the movement information.
In one embodiment, the freezing apparatus comprises at least one of a frozen liposoluble apparatus, a frozen depigmentation apparatus, and a frozen acne treatment apparatus.
The third aspect of the application provides a state detection device for detect the handle state of freezing appearance to improve the intelligence of freezing appearance, use convenience and security, the device includes:
the electrodes are configured into at least two, are arranged on the surface of the freezer handle close to the area to be frozen and are used for being in contact with the area to be frozen;
the driving electric signal source is connected with at least one pair of electrodes and used for providing driving electric signals for the pair of electrodes;
an output electric signal acquisition unit connected with the pair of electrodes and used for acquiring output electric signals of the pair of electrodes;
a handle working state judging unit connected with the excitation electric signal source and the output electric signal obtaining unit and configured to calculate an impedance value corresponding to the electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal, an
Judging the state of the handle according to the change of the impedance value in a preset monitoring period, wherein the state of the handle comprises a normal freezing treatment state, a falling event, an unfreezing treatment state, a shifting event and a freezing working state of a freezing area;
if the reduction of the impedance value in the preset monitoring period is larger than or equal to a first preset reduction threshold, the handle working state judgment unit judges that the handle is in the freezing working state of the freezing area, and the first preset reduction threshold is larger than zero.
In the state detection device in the above embodiment, a plurality of electrodes are disposed on a surface of a handle of the refrigeration instrument, the surface being close to a region to be frozen, an excitation electrical signal is provided to at least one pair of electrodes, an output electrical signal of the pair of electrodes is acquired by an output electrical signal acquisition unit, and a handle working state judgment unit is used for calculating an impedance value corresponding to the electrode in contact with the region to be frozen according to an amplitude of the excitation electrical signal and an amplitude of the output electrical signal, so as to judge a state of the handle according to a change amount of the impedance value in a preset monitoring period. The handle state of the freezing instrument is detected by detecting the change of the conductivity of the area to be frozen by the electrodes, so that corresponding countermeasures can be taken in time, and the intelligence, the use safety and the effectiveness of the freezing instrument are improved. In addition, a plurality of uniformly distributed electrodes can be arranged on the surface of the handle of the freezing instrument, which is close to the area to be frozen, so that the change of the conductivity of the area to be frozen can be comprehensively detected, and the detection blind zone caused by the large area and the nonuniform temperature distribution of the area to be frozen can be avoided, and all events can not be completely and accurately and timely detected. For traditional temperature value that utilizes temperature sensor to detect the area of waiting to freeze comes indirect detection refrigeration appearance's handle state, be influenced by temperature sensor's sensitivity, need great temperature variation just can discern the effective signal, the handle state of refrigeration appearance is judged through the impedance value that detects the area of waiting to freeze to the directness of this application, can be more timely, accurately discern the slight change of waiting to freeze the area, therefore can be more timely, accurately and detect out the handle state of refrigeration appearance comprehensively, improve the intelligence of refrigeration appearance, convenience in utilization, security and validity.
In one embodiment, the handle operating state determining unit is further configured to:
acquiring a curve of the impedance value changing along with time;
and judging the state of the handle according to the curve.
In one embodiment, the determining the state of the handle according to the curve includes:
and if the variation of the impedance value in the preset monitoring period is within the range of a preset stable threshold value, judging that the handle is in a normal freezing treatment state.
In one embodiment, the determining the state of the handle according to the curve includes:
if the increment of the impedance values in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold, judging that the handle falls off and/or the area to be frozen is in a non-frozen state, wherein the first preset increment threshold is larger than zero;
in one embodiment, the determining the state of the handle according to the curve includes:
if the increment of the impedance value in the former preset monitoring period is larger than or equal to the first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to the second preset decrement threshold value in the two adjacent preset monitoring periods, the handle is judged to have a displacement event and/or is judged to be in a non-freezing treatment state, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
In one embodiment, the state detection apparatus further includes:
a cooling surface for contacting an area to be frozen;
wherein the cooling surface comprises a flat surface and/or an arc surface.
In one embodiment, the electrode is disposed on the cooling surface, the electrode being configured to:
the surface of the electrode close to the area to be frozen is higher than the surface of the handle close to the area to be frozen; or
And the surface of the electrode close to the area to be frozen is flush with the surface of the handle close to the area to be frozen.
In one embodiment, the handle further comprises an anti-freezing film disposed between the cooling surface and the area to be frozen.
In one embodiment, the anti-freeze film includes a plurality of electrode through holes, and the electrodes are exposed to the electrode through holes.
In one embodiment, the excitation electrical signal includes at least one of a dc electrical signal, an ac electrical signal, or a pulsed electrical signal having an amplitude within a predetermined range.
In one embodiment, each of the electrodes is uniformly arranged in an array, wherein two adjacent electrodes form an electrode pair, and/or
One electrode is a common electrode and forms an electrode pair with a different electrode, respectively, to supply an excitation electric signal to each of the electrode pairs.
In one embodiment, the freezing apparatus comprises at least one of a frozen liposoluble apparatus, a frozen depigmentation apparatus, and a frozen acne treatment apparatus.
The fourth aspect of this application provides a state monitoring device, including arbitrary this application embodiment state detection device for the operating condition of detection and control refrigeration appearance handle realizes having improved the intelligence, the safety in utilization and the validity of refrigeration appearance when effectively freezing local region.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain drawings of other embodiments based on these drawings without any creative effort.
Fig. 1 is a schematic flow chart of a state detection apparatus provided in a first embodiment of the present application;
fig. 2 is a partial schematic flow chart of a status detection apparatus provided in a second embodiment of the present application;
fig. 3 is a partial schematic flow chart of a status detection apparatus provided in a third embodiment of the present application;
fig. 4 is a partial schematic flow chart of a status detection apparatus provided in a fourth embodiment of the present application;
fig. 5 is a partial schematic flow chart of a status detecting device provided in a fifth embodiment of the present application;
fig. 6 is a schematic flow chart of a state detection apparatus provided in a sixth embodiment of the present application;
fig. 7 is a schematic flow chart of a condition monitoring apparatus provided in a seventh embodiment of the present application;
fig. 8 is a partial schematic flow chart of a condition monitoring apparatus provided in an eighth embodiment of the present application;
fig. 9 is a partial schematic flow chart of a condition monitoring apparatus provided in a ninth embodiment of the present application;
fig. 10 is a partial schematic flow chart of a condition monitoring apparatus provided in a tenth embodiment of the present application;
fig. 11 is a partial schematic flow chart of a condition monitoring apparatus provided in an eleventh embodiment of the present application;
fig. 12 is a schematic diagram illustrating an architecture of a status detection apparatus according to a twelfth embodiment of the present application;
FIG. 13 is a schematic view of a handle of a freezer provided in a thirteenth embodiment of the present application;
FIG. 14a is a schematic top view of a handle of a freezer provided in an embodiment of the present application;
FIG. 14b is a schematic top view of a handle of a cryocooler provided in another embodiment of the present application;
fig. 15 is an exploded pictorial illustration of a handle of a freezer provided in an embodiment of the present application.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present application.
In this application, unless otherwise expressly stated or limited, the terms "connected" and "connecting" are used broadly and encompass, for example, direct connection, indirect connection via an intermediary, communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the process of freezing and dissolving fat in the skin by using the freezing and fat dissolving instrument, because the operation object is the skin of a living object, the actual working state of the freezing instrument is difficult to monitor and judge, so that the blindness and the low efficiency of the operation are caused, and the skin frostbite is easy to occur.
Hyperpigmentation of the skin can lead to dark areas of the skin, such as freckles, age spots, cafe milk spots, under-eye puffiness, or the like. Temporary cooling or freezing of skin tissue can lead to hypopigmentation of the skin tissue, and the hypopigmentation after skin cooling or freezing may result from a reduction in melanosome production, destruction of melanocytes, or inhibition of melanosome transfer to keratinocytes in the lower region of the epidermal layer, and thus hypopigmentation by freezing skin may be long-term or permanent. Freezing can inhibit the production of pigment or apoptosis of pigment cells. In the traditional treatment process, pigment is frozen for a long time to cause pigment cell apoptosis, and the excessive treatment mode can cause melanocyte apoptosis and clinically show the phenomena of leukoderma, even pigment loss and other depigmentation.
Exocrine glands in the skin lubricate or cool the skin or hair follicles of the body by draining water-based, oily, or waxy substances through the skin pores or hair follicles. Overproduction or over secretion of these substances by certain exocrine glands, such as sebaceous and sweat glands, can lead to skin disorders. Acne is treated by freezing, and because the operation is the skin of a living object, the actual working state of the frozen acne treatment instrument is difficult to monitor and judge, so that the blindness and the low efficiency of the operation are caused, and the condition that the acne treatment is not complete often occurs.
Therefore, the application provides a state detection and control device for detect the handle state of freezing appearance to improve intelligence, safety in utilization and the reliability of freezing appearance.
Referring to fig. 1, in one embodiment of the present application, a state detection device is provided for detecting a state of a handle of a refrigeration apparatus to improve intelligence, convenience and safety of the refrigeration apparatus, the handle of the refrigeration apparatus having at least two electrodes disposed on a surface thereof near an area to be refrigerated, the device including a controller electrically connected to each of the electrodes, the controller being configured to perform at least the following steps:
step 22: controlling an excitation source to provide an excitation electrical signal to at least one pair of electrodes;
step 24: acquiring output electric signals of the pair of electrodes;
step 26: calculating an impedance value corresponding to the electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal;
step 28: judging the state of the handle according to the change of the impedance value in a preset monitoring period, wherein the state of the handle comprises a normal freezing treatment state, a falling event, an unfreezing treatment state, a shifting event and a freezing working state of a freezing area; and if the reduction of the impedance value in the preset monitoring period is greater than or equal to a first preset reduction threshold, judging that the handle is in the freezing working state of the freezing area, wherein the first preset reduction threshold is greater than zero.
Specifically, since the impedance value of the area to be frozen in the normal state should be within a stable impedance range and have small variation, when the frozen area, such as skin or artificial skin, is frozen, the local liquid in the frozen area is frozen, and the conductive characteristic is abruptly changed due to the liquid phase change, so that the impedance value is abruptly changed and the variation is large. Therefore, the plurality of electrodes are arranged on the surface of the handle of the freezing instrument, which is close to the area to be frozen, the exciting electric signals, such as exciting current signals, are provided for at least one pair of electrodes, the impedance values corresponding to the electrodes are calculated according to the amplitude of the exciting current signals and the amplitude of the output electric signals, such as output voltage signals, so as to judge the state of the handle according to the change quantity of the impedance values in a preset monitoring period, wherein the exciting electric signals comprise at least one of direct current electric signals, alternating current electric signals or pulse electric signals with the amplitude within a preset range, for example, the exciting electric signals can be direct current electric signals with constant amplitude, and the electric signals comprise current signals or voltage signals. The handle state of the freezing instrument is detected by detecting the change of the impedance value corresponding to the electrode in contact with the area to be frozen, so that corresponding countermeasures can be taken in time, freezing injury events of the freezing area are avoided, and the intelligence, the use safety and the reliability of the freezing instrument are improved. In addition, a plurality of electrodes which are uniformly distributed in an array mode can be arranged on the surface, close to the area to be frozen, of the handle of the freezing instrument, so that the change of the impedance value of the area to be frozen can be comprehensively detected, and the detection blind area caused by the fact that the area of the area to be frozen is large and the temperature distribution is uneven is avoided, and all events cannot be completely and accurately detected in time. For traditional temperature value that utilizes temperature sensor to detect the area of waiting to freeze comes indirect detection refrigeration appearance's handle state, be influenced by temperature sensor's sensitivity, need great temperature variation just can discern effective signal, the handle state of refrigeration appearance is judged through the impedance value that detects directly to this application, can be more timely, accurately discern the slight change in freezing area, therefore can be more timely, accurately and comprehensively detect out the handle state of refrigeration appearance, improve the intelligence of refrigeration appearance, safety in utilization and validity, and reduce the dependence to user's operation experience.
By way of example, in one embodiment of the present application, the cryo-apparatus comprises at least one of a frozen liposolution apparatus, a frozen macula removing apparatus, and a frozen acne treatment apparatus. In the process of freezing and dissolving fat by using the frozen fat dissolving instrument, the handle state of the frozen fat dissolving instrument is detected by using the electrode to detect the change of the conductivity of the area to be frozen, so that corresponding countermeasures can be taken in time, and the occurrence of frostbite accidents is avoided. In the process of utilizing the frozen pigment spot removing instrument to remove the frozen pigment spots, the handle state of the frozen pigment spot removing instrument is detected by utilizing the electrode to detect the change of the electrical conductivity of the area to be frozen, the refrigeration output can be stopped after the frozen area is detected to be frozen, the side effect caused by uneven skin color due to over-treatment is avoided, and the use safety and the reliability of the frozen pigment spot removing instrument are improved. In the process of carrying out the freezing treatment on the acne by using the freezing acne treatment instrument, the handle state of the freezing acne treatment instrument is detected by using the electrode to detect the change of the electrical conductivity of the area to be frozen, so that after the freezing area is detected to be frozen, the refrigeration temperature is maintained for the preset time to freeze the acne, the incomplete acne treatment is avoided, and the use safety and the reliability of the freezing acne treatment instrument are improved.
Specifically, in general, the impedance value of the frozen processing region entering the normal and steady state should be maintained within a preset steady threshold range, for example, remain unchanged. When the freezing area is frozen, the local liquid in the freezing area is frozen, and the electric conduction characteristic is changed rapidly due to the liquid phase change, so that the measured impedance value is reduced rapidly and the variation is large. For example, a preset monitoring period may be set to 0s-3s, and if the decrease amount of the impedance value in the preset monitoring period is greater than or equal to a first preset decrement threshold, it is determined that the handle is in the freezing working state in the freezing region, where the first preset decrement threshold is greater than zero. Generally, when the handle of the freezing instrument monitors the freezing event of the freezing area, the further temperature reduction can be immediately stopped or a slight temperature increase measure can be adopted, so that the freezing injury range is prevented from being enlarged.
Further, referring to fig. 2, in an embodiment of the present application, the determining the state of the handle according to the variation of the impedance value in a preset monitoring period includes:
step 282: acquiring a curve of the impedance value changing along with time, wherein the states of the handle comprise a normal freezing treatment state, a falling event, an unfreezing treatment state, a shifting event and a freezing region icing working state;
step 284: and judging the state of the handle according to the curve, and if the reduction of the impedance value in a preset monitoring period is greater than or equal to a first preset reduction threshold, judging that the handle is in a freezing working state of a freezing area, wherein the first preset reduction threshold is greater than zero. .
Specifically, in the process of freezing the area to be frozen, the change of the state of the frozen area can cause the change of the impedance of the frozen area, and the change of the impedance value corresponding to the electrode in contact with the area to be frozen along with the change of time can be obtained according to the curve, so that the change of the curve in a preset monitoring period can be obtained according to the change of the impedance value of the frozen area, the handle state of the freezing instrument can be judged timely, accurately and comprehensively, the freezing injury event of the frozen area can be avoided, and the freezing instrument can be improvedIntelligence Property of,Safety and reliability in use.
Further, referring to fig. 3, in an embodiment of the present application, the determining the state of the handle according to the curve includes:
step 2841: if the variation of the impedance value in the preset monitoring period is within the range of a preset stable threshold value, judging that the handle is in a normal freezing treatment state; and if the reduction of the impedance value in the preset monitoring period is greater than or equal to a first preset reduction threshold, judging that the handle is in the freezing working state of the freezing area, wherein the first preset reduction threshold is greater than zero.
Specifically, in general, the frozen impedance value entering the normal and steady state should be maintained within a preset steady threshold range, for example, remain unchanged. Therefore, if the change of the impedance value corresponding to the electrode in contact with the area to be frozen in the preset monitoring period is monitored to be within the preset stable threshold range, the handle is determined to be in a normal freezing treatment state, or the handle is determined to be in a normal working state.
Further, referring to fig. 4, in an embodiment of the present application, the determining the state of the handle according to the curve includes:
step 2842: if the increment of the impedance values in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, judging that the handle is in a falling-off event and/or the handle is in a non-freezing treatment state, wherein the first preset increment threshold value is larger than zero.
Specifically, in a general case, if an increase amount of an impedance value corresponding to an electrode in contact with a region to be frozen in a preset monitoring period is greater than or equal to a first preset increment threshold, it is determined that the handle is in an abnormal working state, where the first preset increment threshold is greater than zero, and in a general case, the first preset increment threshold is significantly greater than a change amount of the impedance value of the region to be frozen in a preset stable threshold range. That is, when it is detected that the impedance value of the frozen area suddenly and rapidly increases during the actual freezing process of the frozen area, it is determined that the handle is in the abnormal operation state. And if the measured impedance value is increased sharply in the preset monitoring period and the increase of the impedance value in two continuous preset monitoring periods is greater than or equal to a first preset increment threshold value, judging that the handle is in a falling-off event and/or the handle is in a non-freezing treatment state, wherein the first preset increment threshold value is greater than zero.
Further, referring to fig. 5, in an embodiment of the present application, the determining the state of the handle according to the curve includes:
step 2843: if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in the two adjacent preset monitoring periods, the handle is judged to have a displacement event and/or is judged to be in a non-freezing treatment state, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
Specifically, if the measured impedance value in the previous monitoring period sharply increases and the measured impedance value in the next monitoring period sharply decreases or even returns to a stable freezing treatment state in two consecutive preset monitoring periods, the handle is determined to have a displacement event, and/or the handle is determined to be in a non-freezing treatment state.
As an example, an excitation current I is input to a pair of electrodes of a cryoscope handle close to the side surface of the region to be frozen, the amplitude of the excitation current I is 100nA to 10uA, an output voltage signal V is obtained through the pair of electrodes, and an impedance value R between the electrodes is calculated based on ohm's law R ═ V/I. The skin impedance value R is 1K-10M during the freezing process when the pair of electrodes is in contact with the skin in the fat-reducing area. When the handle of the freezing instrument is lifted and separated from the surface of the skin to generate a falling event, the measured impedance value is sharply increased and is close to the impedance value of the atmosphere between the two electrodes, a preset monitoring period can be set to be 0s-3s, if the skin impedance value measured in the preset monitoring period is sharply increased and the increase of the skin impedance value in two continuous preset monitoring periods is greater than or equal to a first preset increment threshold value, the falling event of the handle and/or the skin in a non-freezing treatment state are judged, wherein the first preset increment threshold value is greater than zero. When the skin is frozen, the liquid in the local part of the skin can be frozen, and the electric conduction characteristic of the skin is rapidly changed due to the phase change of the liquid in the skin, so that the impedance value of the skin is rapidly reduced and the change amount is large. For example, a preset monitoring period may be set to 0s to 3s, and if the decrease amount of the skin impedance value in the preset monitoring period is greater than or equal to a first preset decrement threshold, it is determined that the skin is in an icing state, wherein the first preset decrement threshold is greater than zero. Generally, when the freezing instrument handle monitors the skin freezing event, further temperature reduction can be stopped immediately or a slight temperature increase measure can be taken, so that the skin frostbite range is prevented from being enlarged. When the handle of the freezing instrument is displaced, the measured impedance value can be increased sharply, but the impedance value can be reduced instantly because the handle is placed in another freezing area, therefore, the preset monitoring period can be set to be 0s-3s, and if the skin impedance value measured in the former monitoring period is increased sharply and the skin impedance value measured in the latter monitoring period is reduced sharply in two continuous preset monitoring periods, and even the skin impedance value is recovered to a stable freezing treatment state, the displacement event of the handle and/or the handle is in a non-freezing treatment state are judged. If any one of the shedding event, the freezing event, the shifting event and the like is not monitored, the normal working state of the handle of the freezer can be preliminarily judged. During the working period of the handle of the freezing instrument, the working state of the skin can be judged according to the impedance value of the skin, wherein the working state at least comprises an unfrozen state, an icing state or a normal frozen state. If the skin is monitored to be in the icing state, the handle of the freezer should be controlled to stop continuously cooling in time, so that the skin frostbite range is prevented from being enlarged.
Further, referring to fig. 6, in an embodiment of the present application, the providing the excitation electrical signal to the at least one pair of electrodes includes:
step 221: providing an excitation electrical signal to an adjacent pair of electrodes; and/or selecting one electrode as a common electrode and forming electrode pairs with different electrodes respectively so as to provide excitation electric signals for the electrode pairs.
As an example, the electrodes of the handle of the freezing instrument close to the side surface of the area to be frozen are arranged in a uniform array distribution, and then two adjacent electrodes are arranged to form an electrode pair, and an excitation electric signal is provided for each electrode pair; it is also possible to select one electrode as a common electrode and form electrode pairs with different electrodes, respectively, and use the common electrode as a common anode or cathode to supply an excitation electrical signal to each of the electrode pairs.
Further, referring to fig. 7, in an embodiment of the present application, a status monitoring device is provided for detecting and controlling an operating status of a handle of a refrigeration apparatus to improve intelligence, convenience and safety of the refrigeration apparatus, the handle of the refrigeration apparatus is provided with at least two electrodes near a surface of an area to be refrigerated, the device includes a controller electrically connected to each of the electrodes, and the controller is configured to perform at least the following steps:
step 32: controlling an excitation source to provide an excitation electrical signal to at least one pair of electrodes;
step 34: acquiring output electric signals of the pair of electrodes;
step 36: calculating an impedance value corresponding to an electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal, and controlling the working state of the handle according to the change of the impedance value in a preset monitoring period, wherein the control of the working state of the handle comprises the control of the refrigeration temperature of the handle to be constant and the control of the handle to execute a preset action, and the preset action comprises at least one of the steps of stopping refrigeration, lifting up, increasing temperature, turning off a power supply and recording movement information; and if the decrement of the impedance value in a preset monitoring period is larger than or equal to the first preset decrement threshold, controlling the handle to lift and/or controlling the handle to raise the temperature, wherein the first preset decrement threshold is larger than zero.
In the state monitoring device in the above embodiment, the working state of the handle of the refrigeration instrument is controlled by detecting the change of the impedance value of the region to be refrigerated by using the electrode, and corresponding countermeasures are taken in time, so that the occurrence of a frostbite event is avoided, and the use safety and reliability of the refrigeration instrument are improved. For the handle state that traditional utilization temperature sensor detected the regional temperature value of waiting to freeze and come indirect detection refrigeration appearance, be influenced by temperature sensor's sensitivity, need great temperature variation just can discern effective signal, the application directly judges the handle state of refrigeration appearance through the impedance value that detects the electrode that contacts with waiting to freeze the region, can more in time, accurately discern the slight change of waiting to freeze the region, therefore can more in time, accurately control the operating condition of refrigeration appearance handle, avoid producing because of not discerning characteristic signal and not in time controlling the action of refrigeration appearance handle, lead to missing the best guard period and cause the unnecessary harm to the user, can improve the intelligence of refrigeration appearance, convenience in utilization and security.
Specifically, if the reduction of the impedance value in a preset monitoring period is greater than or equal to the first preset reduction threshold, which indicates that the handle of the refrigeration instrument is frozen, the handle is controlled to be lifted and/or the handle is controlled to increase the temperature by a proper amount, so that the handle is prevented from being continuously cooled, a rewarming protection function is started, and the area of the frostbite is prevented from being increased.
In one embodiment of the present application, the freezing apparatus comprises at least one of a frozen liposolution apparatus, a frozen macula removing apparatus, and a frozen acne treatment apparatus.
Further, referring to fig. 8, in an embodiment of the present application, a state monitoring apparatus is provided, where controlling the operating state of the handle according to the change amount of the impedance value in a preset monitoring period includes:
step 362: acquiring a curve of the impedance value changing along with time, wherein the control of the working state of the handle comprises the control of the refrigeration temperature of the handle to be unchanged and the control of the handle to execute a preset action, and the preset action comprises at least one of stopping refrigeration, lifting, increasing temperature, turning off a power supply and recording mobile information;
step 364: and controlling the working state of the handle according to the curve, and if the reduction of the impedance value in a preset monitoring period is greater than or equal to the first preset reduction threshold, controlling the handle to lift and/or controlling the handle to increase the temperature, wherein the first preset reduction threshold is greater than zero.
Specifically, in the process of freezing the area to be frozen, the impedance of the area to be frozen is changed due to the change of the state of the area to be frozen, and the change of the impedance value corresponding to the electrode in contact with the area to be frozen along with the change of time is obtained according to the curve, so that the working state of the handle is controlled according to the change of the impedance value, corresponding protection measures are taken in time, the frostbite event is avoided, and the use safety and the reliability of the freezing instrument are improved.
Further, referring to fig. 9, in an embodiment of the present application, the controlling the operating state of the handle according to the curve includes:
step 3641: and if the change amount of the impedance value in the preset monitoring period is within the range of a preset stable threshold value, controlling the refrigerating temperature of the handle to be unchanged, and if the reduction amount of the impedance value in the preset monitoring period is greater than or equal to the first preset decrement threshold value, controlling the handle to be lifted and/or controlling the handle to increase the temperature, wherein the first preset decrement threshold value is greater than zero.
Specifically, if the variation of the impedance value in the preset monitoring period is within the preset stable threshold range, it indicates that the area to be frozen is in a normal frozen processing state, and the refrigerating temperature of the handle is controlled to be unchanged, so as to perform normal freezing operation.
Further, referring to fig. 10, in an embodiment of the present application, a status monitoring device is provided, wherein the controlling the operating status of the handle according to the curve includes:
step 3642: and if the increment of the impedance value in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, controlling the handle to execute a first preset action, wherein the first preset increment threshold value is larger than zero.
Specifically, if the increment of the impedance value obtained in two consecutive preset monitoring periods is greater than or equal to a first preset increment threshold, which indicates that the handle of the refrigeration instrument is lifted and separated from the surface of the refrigeration area, the handle may be controlled to perform a first preset action, for example, the handle is controlled to stop cooling and/or alarm.
Further, referring to fig. 11, in an embodiment of the present application, a status monitoring device is provided, wherein the controlling the operating status of the handle according to the curve includes:
step 3643: and if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in the two adjacent preset monitoring periods, controlling the handle to execute a third preset action, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
Specifically, if the increment of the impedance value in the previous preset monitoring period is greater than or equal to the first preset increment threshold value and the decrement of the impedance value in the next preset monitoring period is greater than or equal to the second preset decrement threshold value in the two adjacent preset monitoring periods, both the first preset decrement threshold value and the second preset decrement threshold value are greater than zero, which indicates that a handle of the refrigeration instrument is shifted, the handle is controlled to execute a third preset action, for example, the handle is controlled to turn off a power supply and/or record movement information, so as to avoid the situation that the refrigeration treatment is not performed on an area which is not expected to be refrigerated; recording movement information facilitates the detection of the cause of the occurrence of the handle movement event.
In the embodiment, when the handle of the freezing instrument is separated from the surface of the freezing area, the handle is controlled to give an alarm, so that related workers can be reminded to take corresponding measures in time, and the convenience and the efficiency of freezing treatment of the area to be frozen are improved.
Further, referring to fig. 12, in an embodiment of the present application, a state detection apparatus 100 is provided for detecting an operating state of a handle 10 of a refrigeration instrument, the state detection apparatus 100 includes at least two electrodes 12, an excitation electric signal source 20, an output electric signal obtaining unit 30, and a handle operating state determining unit 40, and the electrodes 12 are disposed on a surface 11 of the handle of the refrigeration instrument near an area to be refrigerated; the excitation electric signal source 20 is connected to at least one pair of electrodes, and is configured to provide an excitation electric signal to the pair of electrodes, where the excitation electric signal includes at least one of a direct current electric signal, an alternating current electric signal, or a pulse electric signal with an amplitude value within a preset range, and the electric signal includes a voltage signal or a current signal; the output electric signal obtaining unit 30 is connected to the pair of electrodes and is configured to obtain output electric signals of the pair of electrodes, where the electric signals include voltage signals or current signals; the handle working state judging unit 40 is connected with the excitation electric signal source 20 and the output electric signal acquiring unit 30, the handle working state judging unit 40 is configured to calculate an impedance value corresponding to an electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal, and judge the state of the handle according to the change quantity of the impedance value in a preset monitoring period, wherein the state of the handle comprises a normal freezing processing state, a falling event, a non-freezing processing state, a shifting event and a freezing area freezing working state; if the reduction of the impedance value in the preset monitoring period is larger than or equal to a first preset reduction threshold, the handle working state judgment unit judges that the handle is in the freezing working state of the freezing area, and the first preset reduction threshold is larger than zero.
Specifically, with reference to fig. 12, a plurality of electrodes are disposed on the surface 11 of the handle 10 of the refrigeration apparatus near the region to be refrigerated, and then the driving electrical signal source 20 is controlled to provide driving electrical signals to at least one pair of electrodes, and the output electrical signals of the pair of electrodes are obtained through the output electrical signal obtaining unit 30, so that the handle working state determining unit 40 is used to calculate impedance values corresponding to the electrodes according to the amplitudes of the driving electrical signals and the amplitudes of the output electrical signals, and the state of the handle is determined according to the variation of the impedance values in a preset monitoring period. The handle state of the freezing instrument is detected by detecting the change of the conductivity of the area to be frozen by the electrodes, so that corresponding measures can be taken in time, the freezing injury event is avoided, and the use safety and the reliability of the freezing instrument are improved. In addition, because a plurality of uniformly distributed electrodes can be arranged on the surface of the handle of the freezing instrument, which is close to the area to be frozen, the change of the conductivity of the area to be frozen can be comprehensively detected, and the detection blind zone caused by the large area and the nonuniform temperature distribution of the area to be frozen can be avoided, so that all events can not be completely and accurately detected in time. For traditional handle state that utilizes temperature sensor to detect the handle state that comes indirect detection refrigeration appearance of temperature value of waiting to freeze the region, receive temperature sensor's sensitivity influence, need great temperature variation just can discern effective signal, the handle state of refrigeration appearance is judged through the impedance value that the electrode that this application is direct to be contacted with waiting to freeze the region, can more in time, accurately discern the slight change of freezing region, therefore can more in time, accurately and detect out the handle state of refrigeration appearance comprehensively. In one embodiment of the present application, the freezing apparatus comprises at least one of a frozen liposolution apparatus, a frozen macula removing apparatus, and a frozen acne treatment apparatus.
In one embodiment of the application, the state detection device further comprises a cooling surface for contacting the area to be frozen, and the cooling surface comprises a plane surface and/or a cambered surface so as to meet different requirements of different application scenes of the handle of the freezer.
As an example, referring to fig. 13, in an embodiment of the present application, the state detection apparatus further includes a cooling surface 11 for contacting the skin of the area to be frozen, the cooling surface 11 is configured in an arc shape and forms a receiving cavity for receiving the skin to be fat-reduced. The cooling surface 11 is provided with a plurality of electrodes 12.
By way of example, with continued reference to fig. 13, in one embodiment of the present application, the electrode 12 is cylindrical, and the surface of the electrode 12 near the area to be frozen is higher than the surface 11 of the handle near the area to be frozen, so as to directly contact the area to be frozen, such as the skin, and measure the impedance value of the skin. In other embodiments of the present application, the electrode 12 may be arranged in a planar shape, and the surface of the electrode 12 close to the area to be frozen may be arranged flush with the surface 11 of the handle 10 close to the area to be frozen.
In one embodiment of the present application, a plurality of electrodes are disposed on the surface of the cryoscope handle near the area to be frozen, and each of the electrodes is distributed in a uniform array, wherein two adjacent electrodes form an electrode pair, and/or one electrode is selected as a common electrode and forms an electrode pair with different electrodes respectively, so as to provide an excitation electrical signal to each of the electrode pairs.
By way of example, referring to fig. 14a, in one embodiment of the present application, a plurality of electrodes 12 are disposed on a surface 11 of a handle of a freezer near an area to be frozen, each electrode 12 is disposed in a uniform array, two adjacent electrodes form an electrode pair, i.e., electrode 1 forms 1 electrode pair with electrode 2, electrode 2 forms 1 electrode pair with electrode 3, electrode 4 forms 1 electrode pair with electrode 5, electrode 5 forms 1 electrode pair with electrode 6, and an excitation electrical signal is provided to each of the electrode pairs to measure an impedance value corresponding to the electrode in contact with the area to be frozen.
As an example, referring to fig. 14b, in an embodiment of the present application, a plurality of electrodes 12 are disposed on a surface 11 of a handle of a freezing apparatus near an area to be frozen, the electrodes 12 are disposed in a uniform array, the electrode 5 is selected as a common electrode, and the electrodes form electrode pairs with different electrodes, that is, the electrode 5 forms 1 electrode pair with the electrode 1, the electrode 5 forms 1 electrode pair with the electrode 2, the electrode 5 forms 1 electrode pair with the electrode 3, the electrode 5 forms 1 electrode pair with the electrode 4, the electrode 5 forms 1 electrode pair with the electrode 6, the electrode 5 forms 1 electrode pair with the electrode 7, the electrode 5 forms 1 electrode pair with the electrode 8, and the electrode 5 forms 1 electrode pair with the electrode 9. The electrodes 5 are provided as a common anode or cathode, and by supplying an excitation electric signal to each of said pairs of electrodes, the impedance value corresponding to the electrode in contact with the area to be frozen is measured and the number of electrodes used is reduced.
Further, referring to fig. 15, in an embodiment of the present application, the cryoscope handle 10 further includes an anti-freezing film 50, the anti-freezing film 50 is disposed between the cooling surface 11 and the skin, and the anti-freezing film 50 is used to prevent the cooling surface 11 from directly contacting the skin, which may affect the sanitation of the handle. A plurality of electrode through holes 51 may be provided on the anti-freezing film 50, and the electrodes 12 are exposed to the electrode through holes 51, so that the electrodes 12 may be in direct contact with the skin through the electrode through holes 51 to improve the accuracy of the electrodes 12 in measuring the skin impedance value.
It should be understood that although the various steps in the flow charts of fig. 1-11 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-11 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (29)
1. A condition detection apparatus for detecting a condition of a handle of a cryocooler for improving intelligence, ease of use and safety of the cryocooler, the cryocooler handle having at least two electrodes disposed adjacent a surface of an area to be cooled, the apparatus comprising a controller electrically connected to each of the electrodes, the controller being configured to:
controlling an excitation source to provide an excitation electrical signal to at least one pair of electrodes;
acquiring output electric signals of the pair of electrodes;
calculating an impedance value corresponding to the electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal;
judging the state of the handle according to the change of the impedance value in a preset monitoring period, wherein the state of the handle comprises a normal freezing treatment state, a falling event, an unfreezing treatment state, a shifting event and a freezing working state of a freezing area;
and if the reduction of the impedance value in the preset monitoring period is greater than or equal to a first preset reduction threshold, judging that the handle is in the freezing working state of the freezing area, wherein the first preset reduction threshold is greater than zero.
2. The apparatus of claim 1, wherein the determining the state of the handle according to the variation of the impedance value in a preset monitoring period comprises:
acquiring a curve of the impedance value changing along with time;
and judging the state of the handle according to the curve.
3. The apparatus of claim 2, wherein said determining the state of the handle from the curve comprises:
and if the variation of the impedance value in the preset monitoring period is within the range of a preset stable threshold value, judging that the handle is in a normal freezing treatment state.
4. The apparatus of claim 2, wherein said determining the state of the handle from the curve comprises:
if the increment of the impedance values in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, judging that the handle is in a falling-off event and/or the handle is in a non-freezing treatment state, wherein the first preset increment threshold value is larger than zero.
5. The apparatus of claim 2, the determining the state of the handle from the curve comprising:
if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in two adjacent preset monitoring periods, judging that the handle has a displacement event and/or is in a non-freezing treatment state, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
6. The device of any one of claims 1-5, wherein the excitation electrical signal comprises at least one of a DC electrical signal, an AC electrical signal, or a pulsed electrical signal having an amplitude within a predetermined range.
7. The apparatus of any one of claims 1-5, wherein said providing an excitation electrical signal to at least one pair of electrodes comprises:
providing an excitation electrical signal to an adjacent pair of electrodes; and/or selecting one electrode as a common electrode and forming electrode pairs with different electrodes respectively so as to provide excitation electric signals for the electrode pairs.
8. The device of any one of claims 1-5, wherein the cryo-meter comprises at least one of a cryo-liposolution meter, a cryo-depigmentation meter, and a cryo-acne treatment meter.
9. A condition monitoring device for detecting and controlling the operating condition of a cryosurgical handle, the cryosurgical handle having at least two electrodes disposed adjacent to a surface of an area to be frozen, to improve the intelligence, ease of use, and safety of the cryosurgical handle, the device comprising a controller electrically connected to each of the electrodes, the controller configured to:
controlling an excitation source to provide an excitation electrical signal to at least one pair of electrodes;
acquiring output electric signals of the pair of electrodes;
calculating an impedance value corresponding to an electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal, and controlling the working state of the handle according to the change of the impedance value in a preset monitoring period, wherein the control of the working state of the handle comprises the control of the refrigeration temperature of the handle to be constant and the control of the handle to execute a preset action, and the preset action comprises at least one of the steps of stopping refrigeration, lifting up, increasing temperature, turning off a power supply and recording movement information;
and if the decrement of the impedance value in a preset monitoring period is larger than or equal to a first preset decrement threshold, controlling the handle to lift and/or controlling the handle to raise the temperature, wherein the first preset decrement threshold is larger than zero.
10. The apparatus of claim 9, wherein the controlling the operating state of the handle according to the change of the impedance value within the preset monitoring period comprises:
acquiring a curve of the impedance value changing along with time;
and controlling the working state of the handle according to the curve.
11. The device of claim 10, wherein said controlling the operating state of the handle according to the curve comprises:
and if the variation of the impedance value in the preset monitoring period is within the preset stable threshold range, controlling the refrigerating temperature of the handle to be unchanged.
12. The device of claim 10, wherein said controlling the operating state of the handle according to the curve comprises:
and if the increment of the impedance value in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, controlling the handle to execute a first preset action, wherein the first preset increment threshold value is larger than zero.
13. The device of claim 10, wherein said controlling the operating state of the handle according to the curve comprises:
if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in two adjacent preset monitoring periods, controlling the handle to execute a third preset action, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
14. The device of claim 12, wherein controlling the handle to perform a first preset action comprises:
and controlling the handle to stop refrigerating and/or alarming.
15. The device of claim 13, wherein controlling the handle to perform a third preset action comprises:
and controlling the handle to turn off the power supply and/or record the movement information.
16. The device of any one of claims 9-15, wherein the cryo-meter comprises at least one of a cryo-liposolution meter, a cryo-depigmentation meter, and a cryo-acne treatment meter.
17. The utility model provides a state detection device for detect the handle state of freezing appearance, with intelligent, the convenience in use and the security that improve freezing appearance, the device includes:
the electrodes are configured into at least two, are arranged on the surface of the freezer handle close to the area to be frozen and are used for being in contact with the area to be frozen;
the driving electric signal source is connected with at least one pair of electrodes and used for providing driving electric signals for the pair of electrodes;
an output electric signal acquisition unit connected with the pair of electrodes and used for acquiring output electric signals of the pair of electrodes;
a handle working state judging unit connected with the excitation electric signal source and the output electric signal obtaining unit and configured to calculate an impedance value corresponding to the electrode according to the amplitude of the excitation electric signal and the amplitude of the output electric signal, an
Judging the state of the handle according to the change of the impedance value in a preset monitoring period, wherein the state of the handle comprises a normal freezing treatment state, a falling event, an unfreezing treatment state, a shifting event and a freezing working state of a freezing area;
if the reduction of the impedance value in the preset monitoring period is larger than or equal to a first preset reduction threshold, the handle working state judgment unit judges that the handle is in the freezing working state of the freezing area, and the first preset reduction threshold is larger than zero.
18. The apparatus of claim 17, wherein the handle operating state determining unit is further configured to:
acquiring a curve of the impedance value changing along with time;
and judging the state of the handle according to the curve.
19. The apparatus of claim 18, wherein said determining the state of the handle from the curve comprises:
and if the variation of the impedance value in the preset monitoring period is within the range of a preset stable threshold value, judging that the handle is in a normal freezing treatment state.
20. The apparatus of claim 18, wherein said determining the state of the handle from the curve comprises:
if the increment of the impedance values in two adjacent preset monitoring periods is larger than or equal to a first preset increment threshold value, judging that the handle falls off and/or the area to be frozen is in a non-frozen state, wherein the first preset increment threshold value is larger than zero.
21. The apparatus of claim 18, wherein said determining the state of the handle from the curve comprises:
if the increment of the impedance value in the former preset monitoring period is larger than or equal to a first preset increment threshold value and the decrement of the impedance value in the latter preset monitoring period is larger than or equal to a second preset decrement threshold value in two adjacent preset monitoring periods, judging that the handle has a displacement event and/or is in a non-freezing treatment state, wherein the first preset decrement threshold value and the second preset decrement threshold value are both larger than zero.
22. The apparatus of claim 17, further comprising:
a cooling surface for contacting an area to be frozen;
wherein the cooling surface comprises a flat surface and/or an arc surface.
23. The apparatus of claim 22, wherein the electrode is disposed on the cooling surface, the electrode configured to:
the surface of the electrode close to the area to be frozen is higher than the surface of the handle close to the area to be frozen; or
And the surface of the electrode close to the area to be frozen is flush with the surface of the handle close to the area to be frozen.
24. The device of claim 22, wherein the handle further comprises:
and the anti-freezing film is arranged between the cooling surface and the area to be frozen.
25. The apparatus of claim 24, wherein the anti-freeze film comprises a plurality of electrode vias, the electrodes being exposed to the electrode vias.
26. The apparatus of any one of claims 17-25, wherein the excitation electrical signal comprises at least one of a direct current electrical signal, an alternating current electrical signal, or a pulsed electrical signal having an amplitude within a predetermined range.
27. The device according to any of claims 17-25, wherein each of said electrodes is arranged in a uniform array, wherein two adjacent electrodes form an electrode pair, and/or
One electrode is a common electrode and forms an electrode pair with a different electrode, respectively, to supply an excitation electric signal to each of the electrode pairs.
28. The apparatus of any one of claims 17-25, wherein the cryo-meter comprises at least one of a cryo-liposolution meter, a cryo-depigmentation meter, and a cryo-acne treatment meter.
29. A condition monitoring device, comprising:
a condition sensing device as claimed in any one of claims 17 to 28, for sensing and controlling the handle of a freezer to change operating conditions.
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| CN202110499688.2A CN113295925A (en) | 2021-05-08 | 2021-05-08 | State detection and control device |
| PCT/CN2022/080181 WO2022237294A1 (en) | 2021-05-08 | 2022-03-10 | State detection and control device |
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