Medical electrode clamp power indication method and device and medical electrode clamp

Abstract

The invention discloses a medical electrode clamp power indication method and device and a medical electrode clamp, and belongs to the technical field of medical electrode clamps, and the method comprises the steps: obtaining a thickness value D of a clamped tissue, dynamically calculating an energy threshold value T, and monitoring the output voltage and current of the electrode clamp in real time, so as to calculate instant power and accumulated total energy E; according to the medical electrode forceps, power output can be automatically adjusted according to actual tissue characteristics, the energy utilization efficiency is improved, potential damage to tissue is reduced, meanwhile, the operation state can be fed back in real time, and the safety and accuracy of an operation are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of electrode clamps, and in particular relates to a power indication method and device for medical electrode clamps and a medical electrode clamp. Background Art

[0002] In the medical field, especially during surgery, electrode clamps are widely used to clamp and coagulate tissues. Power control and monitoring of electrode clamps are crucial to ensure the safety and effectiveness of surgery. At present, traditional electrode clamp power indication systems generally rely on fixed power output. When the fixed power output method is adopted, the electrode clamps work at the set power regardless of the thickness of the clamped tissue. Although this method is simple, it cannot adapt to the requirements of different tissues. It may lead to excessive energy output on thinner tissues, causing tissue burns or ischemia; while on thicker tissues, insufficient energy will affect the hemostatic effect.

[0003] With the development of medical technology, modern surgery has an increasingly urgent need for precise control of force and energy. In the existing technology, most electrode forceps do not take into account the actual thickness of the tissue, which makes their effects different in different patients or different parts of the same patient. Therefore, it is necessary to develop a power indication method for medical electrode forceps that can automatically adjust the power output according to the tissue thickness and provide real-time feedback to improve the safety and success rate of surgery. Summary of the invention

[0004] In order to solve the problems that the current electrode clamp control scheme lacks adaptability, lacks real-time performance, and is relatively complicated to use, the present invention provides a medical electrode clamp power indication method based on dynamic adjustment of tissue thickness, which will be able to solve the above shortcomings, improve the safety and success rate of surgery, and has important clinical application value, specifically including:

[0005] First aspect

[0006] The present invention provides a medical electrode clamp power indication method, comprising:

[0007] S1: Obtaining a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D;

[0008] Specifically, the thickness value D between the tissues clamped by the electrode clamp is obtained through a high-precision sensor. The measurement of this thickness value is crucial for subsequent energy calculations. Based on the measured thickness value D, an energy threshold T is calculated using a pre-set algorithm. This energy threshold T will serve as a benchmark for subsequent energy monitoring and prompts. This improves the energy management and use efficiency of the electrode clamp in medical operations.

[0009] S2: Collect the output voltage V and current I of the electrode clamp, and calculate the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point;

[0010] Specifically, the output voltage V and current I of the electrode clamp are monitored in real time to calculate the power. The instantaneous power value at a specific sampling time point can be obtained through the formula P = V*I. This step ensures that we can accurately evaluate the energy consumption of the electrode clamp during operation.

[0011] S3: Calculate the single continuous cumulative capacity of the electrode clamp, taking the start time of the single continuous power-on as the starting point, and calculate the cumulative total energy E in the power-on according to the instantaneous power P(t);

[0012] Specifically, calculating the accumulated total energy E in the current power-on according to the instantaneous power P(t) in S3 includes: obtaining the total energy by integrating the power curve:

[0013]

[0014] Consider the input of heat E at one end of human tissue, which is transferred to the tissue with thickness D in time t. Based on the total energy input, we have:

[0015] E=q·A·t

[0016] Where q is the heat flux (unit: W / m 2 ), A is the cross-sectional area in square meters (m2), and t is the heat transfer time of the heat flow.

[0017] Combined with Fourier's law of heat conduction:

[0018]

[0019] Where q is the heat flux in watts per square meter (W / m 2 ), which represents the heat flow through a unit area; k is the thermal conductivity of the tissue, measured in watts per meter per Kelvin (W / (m·K)), which indicates the quality of the tissue's thermal conductivity; is the temperature gradient, which expresses the rate at which temperature changes with spatial position, and is measured in Kelvin per meter (K / m). This is the rate of change of temperature in a certain direction.

[0020] The following formula can be obtained:

[0021]

[0022] Where k is the thermal conductivity of the tissue, in W / (m·K); is the temperature gradient, which indicates the rate of change of temperature in the thickness direction, with the unit of Kelvin per meter (K / m); A is the cross-sectional area, with the unit of square meters (m2); D is the thickness value between tissues, with the unit of m.

[0023] Arranging the above formulas, the temperature change ΔT can be obtained as follows:

[0024]

[0025] After simplifying the above formula, the temperature change ΔT is:

[0026]

[0027] Where ΔT is the temperature change of the tissue from the start of a single continuous power-on to the current moment (in Kelvin K or Celsius °C); E is the total energy input in a certain period of time (joule J); D is the thickness of the tissue (m); A is the cross-sectional area of ​​the tissue (m 2 ), k is the thermal conductivity of the tissue (W / (m·K)), which reflects the thermal conductivity of the tissue; ρ is the density of the tissue (kg / m 3 );c p is the specific heat capacity of the tissue (J / (kg·K)).

[0028] According to relevant experimental data, considering the blood circulation taking away some heat, tissue type and ambient temperature, the safe temperature rise threshold of human tissue ΔT max Generally, it is 42°C. Based on this, the safe input energy Emax allowed to be accumulated during the operation of the electrode clamp can be obtained, that is, the energy threshold T:

[0029] T=E max =ΔT max ·ρ·c p ·A·D

[0030] After the power calculation is completed, the cumulative total energy E generated during the power-on process is calculated step by step based on the instantaneous power value obtained previously, taking the time point when a single continuous power-on begins as the starting point. This cumulative value can reflect the energy usage of the electrode clamp during the entire operation process, providing necessary data support for subsequent judgments.

[0031] S4: Based on the proportional relationship between the accumulated total energy E and T, the control prompt device responds to the change of the proportional relationship.

[0032] Specifically, according to the proportional relationship between the accumulated total energy E and the energy threshold T, the control prompt device sends feedback to the external user. When the ratio of E to T changes, the prompt device will be updated in real time to provide the operator with intuitive feedback on the energy usage status. Such a design can help doctors or operators better understand the use effect of the electrode forceps and ensure the safety and effectiveness of the surgical process.

[0033] The electrode clamp is composed of a clamp body 101, an electrode 102, an extension rod 103, a connecting wire 105, a handle 104 and an elastic component, wherein the electrode 102 is arranged at one end of the clamp body 101 away from the handle, and the extension rod 103 connects the clamp body 101 and the handle. The clamp body 101 is the main body of the electrode clamp, which is usually made of insulating tissue to avoid current leakage or false triggering. The electrode 102 is the part that contacts the patient's skin and is responsible for conducting bioelectric signals. The electrode 102 is generally made of silver / silver chloride, gold or other conductive tissues. The connecting wire connects the electrode 102 to the monitoring equipment (such as an electrocardiogram or electroencephalograph) and is responsible for transmitting signals. The handle is the operating part of the electrode clamp, which is usually designed to be ergonomic and easy to hold and operate. The electrode clamp is also equipped with an elastic component, which is used to assist the electrode clamp to automatically open or close the clamp body 101. This can improve the convenience of use in the case of frequent clamping and releasing.

[0034] Between the extension rod 103 and the electrode 102, a Hall sensor 106 and a circular coil 107 are relatively arranged on the clamp body 101. The circular coil 107 is used to generate a magnetic field. The Hall sensor 106 senses the magnetic field based on the Hall effect, so that the thickness of the human tissue clamped by the clamp body 101 can be measured. Specifically:

[0035]

[0036] Wherein, B(D) represents the function between magnetic field strength and tissue thickness value D; k and n are constants determined experimentally. Appropriate k and n values ​​can be fitted by calibrating the magnetic field strength measured at different tissue thickness values ​​D before leaving the factory.

[0037] When calculating the magnetic field strength, the Hall voltage can be used to calculate the actual magnetic field strength. When current passes through a conductor and there is a magnetic field perpendicular to the current direction, a voltage perpendicular to the current and magnetic field will be generated inside the conductor (Hall voltage V H ), specifically:

[0038]

[0039] Where B represents the magnetic field strength; V His the Hall voltage obtained by keeping the current I of the circular coil 107 constant through the Hall sensor 106; j is the concentration of carriers; q is the charge of the carriers.

[0040] According to the above formula, the Hall voltage V can be obtained by combined calculation. H The calculation relationship between the tissue thickness value D is:

[0041]

[0042] The thickness of human tissue has a certain attenuation effect on the magnetic field strength generated by the coil. Especially in fields such as medical imaging and bioelectromagnetism, this influence needs to be considered and compensated. Through experiments, the attenuation characteristics of human tissues of different thicknesses (such as skin, muscle, fat, etc.) to magnetic fields of specific frequencies are obtained, and a correction factor based on tissue thickness is established.

[0043] B corr =B measured ·C(d)

[0044] Among them, B corr is the magnetic field strength after compensation; B measured is the magnetic field strength actually measured; C(d) is the compensation factor determined experimentally, which is a function of the tissue thickness value D. It can be obtained by calibrating at different tissue thickness values ​​D at the factory.

[0045] The above method can effectively compensate for the attenuation effect of the thickness of human tissue on the magnetic field strength generated by the coil. The specific compensation strategy should be adjusted according to the application scenario, device characteristics and tissue type.

[0046] Furthermore, the electrode 102 is arranged on the inner side surface opposite to the clamp body 101 and has a mutually fitted electrode 102 surface, and between the extension rod 103 and the electrode 102, a Hall sensor 106 and a circular coil 107 are also relatively arranged on the clamp body 101, wherein the circular coil 107 is arranged in one of the clamp bodies 101, and the Hall sensor 106 is arranged in the other of the clamp bodies 101, and a surface of the Hall sensor 106 opposite to the circular coil 107 is recessed relative to the electrode 102 surface, and the recess depth is S, wherein S is between 0.5-2mm.

[0047] By making the end points of the connection line between the Hall sensor 106 and the circular coil 107 perpendicular to the electrode surface, and making the opposite side of the Hall sensor 106 and the circular coil 107 recessed by a suitable distance relative to the electrode surface, the Hall sensor 106 and the circular coil 107 can have a suitable clearance area during use, avoiding the adverse effect of human tissue on the measured tissue thickness value D, thereby improving the measurement accuracy.

[0048] The electrode clamp also includes a prompting device, which includes a speaker 109 and / or an indicator light 108. As the difference between the accumulated total energy E and the energy threshold T decreases, the occurrence frequency of the speaker 109 increases, and / or the color of the indicator light 108 changes or the flashing frequency increases.

[0049] In one implementation, the prompt device includes a multi-color indicator light 108. When the difference between the accumulated total energy E and the energy threshold T is large, the color of the multi-color indicator light 108 is green or white. As the difference between the accumulated total energy E and the energy threshold T decreases, the color of the multi-color indicator light 108 changes from green or white to red.

[0050] In one implementation, the prompt device includes an indicator light 108, and the flashing frequency of the indicator light 108 changes with the difference between the accumulated total energy E and the energy threshold T. When the accumulated total energy (E) approaches the energy threshold (T), the flashing frequency of the indicator light 108 will also increase accordingly.

[0051] This visual signal provides an intuitive feedback method, allowing the operator to quickly identify the working status of the electrode clamp in a tense medical environment. Through different flashing modes, the indicator light 108 can effectively convey the dynamic changes in energy use, allowing the operator to clearly understand the current energy level in any situation.

[0052] In one implementation, the electrode clamp integrates a speaker 109 and an indicator light 108 and other feedback mechanisms in various forms. The sound frequency of the speaker 109 changes with the difference between the accumulated total energy E and the energy threshold T. When the accumulated total energy (E) approaches the energy threshold (T), the sound frequency of the speaker 109 will also increase. These feedback mechanisms can respond to changes in the operating state of the electrode clamp in real time, especially to the difference between the accumulated total energy (E) and the energy threshold (T).

[0053] Second aspect

[0054] The present invention provides an electrode clamp power indicating device, comprising:

[0055] An acquisition module, used for acquiring a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D;

[0056] The acquisition module is used to acquire the output voltage V and current I of the electrode clamp and calculate the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point;

[0057] A calculation module is used to calculate the single continuous accumulation capacity of the electrode clamp, taking the start time of a single continuous power-on as the starting point, and calculating the accumulated total energy E in the power-on according to the instantaneous power P(t);

[0058] The control module is used to control the prompt device to respond to the change of the proportional relationship between the accumulated total energy E and T.

[0059] The third aspect

[0060] The present invention provides a computer device, characterized in that it includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the medical electrode clamp power indication method as described in the first aspect is implemented.

[0061] The fourth aspect

[0062] The present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the program is executed by a processor, the medical electrode clamp power indication method as described in the first aspect is implemented.

[0063] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0064] The present invention proposes a power indication method for medical electrode clamps, which obtains the thickness value D of the clamped tissue, dynamically calculates the energy threshold T, and monitors the output voltage and current of the electrode clamp in real time to calculate the instantaneous power and the accumulated total energy E. The advantage of this solution is that it can automatically adjust the power output according to the actual tissue characteristics, improve the energy utilization efficiency, reduce the potential damage to the tissue, and can provide real-time feedback on the operation status, enhance the safety and accuracy of the operation, and effectively solve the shortcomings of the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0066] Figure 1 The present invention is a schematic flow chart of a method for indicating power of a medical electrode clamp.

[0067] Figure 2The present invention is a schematic structural diagram of an electrode clamp power indicating device provided by the present invention.

[0068] Figure 3 The present invention is a schematic structural diagram of an electrode clamp provided by the present invention.

[0069] Figure 4 The present invention is a schematic structural diagram of an electrode clamp body.

[0070] Figure 5 It is a structural schematic diagram of a computer device provided by the present invention. DETAILED DESCRIPTION

[0071] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0072] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0073] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0074] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In addition, in the description of the present invention, the terms “first”, “second”, etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0076] Example 1

[0077] In one embodiment, the reference specification Figure 1, which shows a schematic flow chart of a medical electrode clamp power indication method provided by the present invention. Figure 2 , showing a schematic structural diagram of the medical electrode clamp power indication method provided by the present invention.

[0078] The present invention provides a medical electrode clamp power indication method, comprising:

[0079] S1: Obtaining a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D;

[0080] Specifically, the thickness value D between the tissues clamped by the electrode clamp is obtained through a high-precision sensor. The measurement of this thickness value is crucial for subsequent energy calculations. Based on the measured thickness value D, an energy threshold T is calculated using a pre-set algorithm. This energy threshold T will serve as a benchmark for subsequent energy monitoring and prompts. This improves the energy management and use efficiency of the electrode clamp in medical operations.

[0081] S2: Collect the output voltage V and current I of the electrode clamp, and calculate the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point;

[0082] Specifically, the output voltage V and current I of the electrode clamp are monitored in real time to calculate the power. The instantaneous power value at a specific sampling time point can be obtained through the formula P = V*I. This step ensures that we can accurately evaluate the energy consumption of the electrode clamp during operation.

[0083] S3: Calculate the single continuous cumulative capacity of the electrode clamp, taking the start time of the single continuous power-on as the starting point, and calculate the cumulative total energy E in the power-on according to the instantaneous power P(t);

[0084] Specifically, calculating the accumulated total energy E in the current power-on according to the instantaneous power P(t) in S3 includes: obtaining the total energy by integrating the power curve:

[0085]

[0086] Consider the input of heat E at one end of human tissue, which is transferred to the tissue with thickness D in time t. Based on the total energy input, we have:

[0087] E=q·A·t

[0088] Where q is the heat flux (unit: W / m 2 ), A is the cross-sectional area in square meters (m2), and t is the heat transfer time of the heat flow.

[0089] Combined with Fourier's law of heat conduction:

[0090]

[0091] Where q is the heat flux in watts per square meter (W / m 2 ), which represents the heat flow through a unit area; k is the thermal conductivity of the tissue, measured in watts per meter per Kelvin (W / (m·K)), which indicates the quality of the tissue's thermal conductivity; is the temperature gradient, which expresses the rate at which temperature changes with spatial position, and is measured in Kelvin per meter (K / m). This is the rate of change of temperature in a certain direction.

[0092] The following formula can be obtained:

[0093]

[0094] Where k is the thermal conductivity of the tissue, in W / (m·K); is the temperature gradient, which indicates the rate of change of temperature in the thickness direction, with the unit of Kelvin per meter (K / m); A is the cross-sectional area, with the unit of square meters (m2); D is the thickness value between tissues, with the unit of m.

[0095] Arranging the above formulas, the temperature change ΔT can be obtained as follows:

[0096]

[0097] After simplifying the above formula, the temperature change ΔT is:

[0098]

[0099] Where ΔT is the temperature change of the tissue from the start of a single continuous power-on to the current moment (in Kelvin K or Celsius °C); E is the total energy input in a certain period of time (joule J); D is the thickness of the tissue (m); A is the cross-sectional area of ​​the tissue (m 2 ), k is the thermal conductivity of the tissue (W / (m·K)), which reflects the thermal conductivity of the tissue; ρ is the density of the tissue (kg / m 3 );c p is the specific heat capacity of the tissue (J / (kg·K)).

[0100] According to relevant experimental data, considering the blood circulation taking away some heat, tissue type and ambient temperature, the safe temperature rise threshold of human tissue ΔT max Generally, it is 42°C. Based on this, the safe input energy Emax allowed to be accumulated during the operation of the electrode clamp can be obtained, that is, the energy threshold T:

[0101] T=E max =ΔT max ·ρ·c p ·A·D

[0102] After the power calculation is completed, the cumulative total energy E generated during the power-on process is calculated step by step based on the instantaneous power value obtained previously, taking the time point when a single continuous power-on begins as the starting point. This cumulative value can reflect the energy usage of the electrode clamp during the entire operation process, providing necessary data support for subsequent judgments.

[0103] S4: Based on the proportional relationship between the accumulated total energy E and T, the control prompt device responds to the change of the proportional relationship.

[0104] Specifically, according to the proportional relationship between the accumulated total energy E and the energy threshold T, the control prompt device sends feedback to the external user. When the ratio of E to T changes, the prompt device will be updated in real time to provide the operator with intuitive feedback on the energy usage status. Such a design can help doctors or operators better understand the use effect of the electrode forceps and ensure the safety and effectiveness of the surgical process.

[0105] The electrode clamp is composed of a clamp body 101, an electrode 102, an extension rod 103, a connecting wire 105, a handle 104 and an elastic component, wherein the electrode 102 is arranged at one end of the clamp body 101 away from the handle, and the extension rod 103 connects the clamp body 101 and the handle. The clamp body 101 is the main body of the electrode clamp, which is usually made of insulating tissue to avoid current leakage or false triggering. The electrode 102 is the part that contacts the patient's skin and is responsible for conducting bioelectric signals. The electrode 102 is generally made of silver / silver chloride, gold or other conductive tissues. The connecting wire connects the electrode 102 to the monitoring equipment (such as an electrocardiogram or electroencephalograph) and is responsible for transmitting signals. The handle is the operating part of the electrode clamp, which is usually designed to be ergonomic and easy to hold and operate. The electrode clamp is also equipped with an elastic component, which is used to assist the electrode clamp to automatically open or close the clamp body 101. This can improve the convenience of use in the case of frequent clamping and releasing.

[0106] Between the extension rod 103 and the electrode 102, a Hall sensor 106 and a circular coil 107 are relatively arranged on the clamp body 101. The circular coil 107 is used to generate a magnetic field. The Hall sensor 106 senses the magnetic field based on the Hall effect, so that the thickness of the human tissue clamped by the clamp body 101 can be measured. Specifically:

[0107]

[0108] Wherein, B(D) represents the function between magnetic field strength and tissue thickness value D; k and n are constants determined experimentally. Appropriate k and n values ​​can be fitted by calibrating the magnetic field strength measured at different tissue thickness values ​​D before leaving the factory.

[0109] When calculating the magnetic field strength, the Hall voltage can be used to calculate the actual magnetic field strength. When current passes through a conductor and there is a magnetic field perpendicular to the current direction, a voltage perpendicular to the current and magnetic field will be generated inside the conductor (Hall voltage V H ), specifically:

[0110]

[0111] Where B represents the magnetic field strength; V H is the Hall voltage obtained by keeping the current I of the circular coil 107 constant through the Hall sensor 106; j is the concentration of carriers; q is the charge of the carriers.

[0112] According to the above formula, the Hall voltage V can be obtained by combined calculation. H The calculation relationship between the tissue thickness value D is:

[0113]

[0114] The thickness of human tissue has a certain attenuation effect on the magnetic field strength generated by the coil. Especially in fields such as medical imaging and bioelectromagnetism, this influence needs to be considered and compensated. Through experiments, the attenuation characteristics of human tissues of different thicknesses (such as skin, muscle, fat, etc.) to magnetic fields of specific frequencies are obtained, and a correction factor based on tissue thickness is established.

[0115] B corr =B measured ·C(d)

[0116] Among them, B corr is the magnetic field strength after compensation; B measured is the magnetic field strength actually measured; C(d) is the compensation factor determined experimentally, which is a function of the tissue thickness value D. It can be obtained by calibrating at different tissue thickness values ​​D at the factory.

[0117] The above method can effectively compensate for the attenuation effect of the thickness of human tissue on the magnetic field strength generated by the coil. The specific compensation strategy should be adjusted according to the application scenario, device characteristics and tissue type.

[0118] Furthermore, the electrode 102 is arranged on the inner side surface opposite to the clamp body 101 and has a mutually fitted electrode 102 surface, and between the extension rod 103 and the electrode 102, a Hall sensor 106 and a circular coil 107 are also relatively arranged on the clamp body 101, wherein the circular coil 107 is arranged in one of the clamp bodies 101, and the Hall sensor 106 is arranged in the other of the clamp bodies 101, and a surface of the Hall sensor 106 opposite to the circular coil 107 is recessed relative to the electrode 102 surface, and the recess depth is S, wherein S is between 0.5-2mm.

[0119] By making the end points of the connection line between the Hall sensor 106 and the circular coil 107 perpendicular to the electrode surface, and making the opposite side of the Hall sensor 106 and the circular coil 107 recessed by a suitable distance relative to the electrode surface, the Hall sensor 106 and the circular coil 107 can have a suitable clearance area during use, avoiding the adverse effect of human tissue on the measured tissue thickness value D, thereby improving the measurement accuracy.

[0120] The electrode clamp also includes a prompting device, which includes a speaker 109 and / or an indicator light 108. As the difference between the accumulated total energy E and the energy threshold T decreases, the occurrence frequency of the speaker 109 increases, and / or the color of the indicator light 108 changes or the flashing frequency increases.

[0121] In one implementation, the prompt device includes a multi-color indicator light 108. When the difference between the accumulated total energy E and the energy threshold T is large, the color of the multi-color indicator light 108 is green or white. As the difference between the accumulated total energy E and the energy threshold T decreases, the color of the multi-color indicator light 108 changes from green or white to red.

[0122] In one implementation, the prompt device includes an indicator light 108, and the flashing frequency of the indicator light 108 changes with the difference between the accumulated total energy E and the energy threshold T. When the accumulated total energy (E) approaches the energy threshold (T), the flashing frequency of the indicator light 108 will also increase accordingly.

[0123] This visual signal provides an intuitive feedback method, allowing the operator to quickly identify the working status of the electrode clamp in a tense medical environment. Through different flashing modes, the indicator light 108 can effectively convey the dynamic changes in energy use, allowing the operator to clearly understand the current energy level in any situation.

[0124] In one implementation, the electrode clamp integrates a speaker 109 and an indicator light 108 and other feedback mechanisms in various forms. The sound frequency of the speaker 109 changes with the difference between the accumulated total energy E and the energy threshold T. When the accumulated total energy (E) approaches the energy threshold (T), the sound frequency of the speaker 109 will also increase. These feedback mechanisms can respond to changes in the operating state of the electrode clamp in real time, especially to the difference between the accumulated total energy (E) and the energy threshold (T).

[0125] Example 2

[0126] The present invention provides an electrode clamp power indicating device, comprising:

[0127] An acquisition module, used for acquiring a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D;

[0128] The acquisition module is used to acquire the output voltage V and current I of the electrode clamp and calculate the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point;

[0129] A calculation module is used to calculate the single continuous accumulation capacity of the electrode clamp, taking the start time of a single continuous power-on as the starting point, and calculating the accumulated total energy E in the power-on according to the instantaneous power P(t);

[0130] The control module is used to control the prompt device to respond to the change of the proportional relationship between the accumulated total energy E and T.

[0131] Specifically, the acquisition module is used for S1: acquiring a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D;

[0132] Furthermore, the thickness value D between the tissues clamped by the electrode clamp is obtained through a high-precision sensor. The measurement of this thickness value is crucial for subsequent energy calculations. Based on the measured thickness value D, an energy threshold T is calculated using a pre-set algorithm. This energy threshold T will serve as a benchmark for subsequent energy monitoring and prompts. This improves the energy management and use efficiency of the electrode clamp in medical operations.

[0133] The acquisition module is used for S2: collecting the output voltage V and current I of the electrode clamp, and calculating the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point;

[0134] Specifically, the output voltage V and current I of the electrode clamp are monitored in real time to calculate the power. The instantaneous power value at a specific sampling time point can be obtained through the formula P = V*I. This step ensures that we can accurately evaluate the energy consumption of the electrode clamp during operation.

[0135] The calculation module is used for S3: calculating the single continuous accumulation capacity of the electrode clamp, taking the start time point of the single continuous power-on as the starting point, and calculating the accumulated total energy E in the power-on according to the instantaneous power P(t);

[0136] Specifically, calculating the accumulated total energy E in the current power-on according to the instantaneous power P(t) in S3 includes: obtaining the total energy by integrating the power curve:

[0137]

[0138] Consider the input of heat E at one end of human tissue, which is transferred to the tissue with thickness D in time t. Based on the total energy input, we have:

[0139] E=q·A·t

[0140] Where q is the heat flux (unit: W / m 2 ), A is the cross-sectional area in square meters (m2), and t is the heat transfer time of the heat flow.

[0141] Combined with Fourier's law of heat conduction:

[0142]

[0143] Where q is the heat flux in watts per square meter (W / m 2 ), which represents the heat flow through a unit area; k is the thermal conductivity of the tissue, measured in watts per meter per Kelvin (W / (m·K)), which indicates the quality of the tissue's thermal conductivity; is the temperature gradient, which expresses the rate at which temperature changes with spatial position, and is measured in Kelvin per meter (K / m). This is the rate of change of temperature in a certain direction.

[0144] The following formula can be obtained:

[0145]

[0146] Where k is the thermal conductivity of the tissue, in W / (m·K); is the temperature gradient, which indicates the rate of change of temperature in the thickness direction, with the unit of Kelvin per meter (K / m); A is the cross-sectional area, with the unit of square meters (m2); D is the thickness value between tissues, with the unit of m.

[0147] Arranging the above formulas, the temperature change ΔT can be obtained as follows:

[0148]

[0149] After simplifying the above formula, the temperature change ΔT is:

[0150]

[0151] Where ΔT is the temperature change of the tissue from the start of a single continuous power-on to the current moment (in Kelvin K or Celsius °C); E is the total energy input in a certain period of time (joule J); D is the thickness of the tissue (m); A is the cross-sectional area of ​​the tissue (m 2 ), k is the thermal conductivity of the tissue (W / (m·K)), which reflects the thermal conductivity of the tissue; ρ is the density of the tissue (kg / m 3 );c p is the specific heat capacity of the tissue (J / (kg·K)).

[0152] According to relevant experimental data, considering the blood circulation taking away some heat, tissue type and ambient temperature, the safe temperature rise threshold of human tissue ΔT max Generally, it is 42°C. Based on this, the safe input energy Emax allowed to be accumulated during the operation of the electrode clamp can be obtained, that is, the energy threshold T:

[0153] T=E max =ΔT max ·ρ·c p ·A·D

[0154] After the power calculation is completed, the cumulative total energy E generated during the power-on process is calculated step by step based on the instantaneous power value obtained previously, taking the time point when a single continuous power-on begins as the starting point. This cumulative value can reflect the energy usage of the electrode clamp during the entire operation process, providing necessary data support for subsequent judgments.

[0155] The control module is used for S4: according to the proportional relationship between the accumulated total energy E and T, controlling the prompting device to respond to the change of the proportional relationship.

[0156] Specifically, according to the proportional relationship between the accumulated total energy E and the energy threshold T, the control prompt device sends feedback to the external user. When the ratio of E to T changes, the prompt device will be updated in real time to provide the operator with intuitive feedback on the energy usage status. Such a design can help doctors or operators better understand the use effect of the electrode forceps and ensure the safety and effectiveness of the surgical process.

[0157] The electrode clamp is composed of a clamp body 101, an electrode 102, an extension rod 103, a connecting wire 105, a handle 104 and an elastic component, wherein the electrode 102 is arranged at one end of the clamp body 101 away from the handle, and the extension rod 103 connects the clamp body 101 and the handle. The clamp body 101 is the main body of the electrode clamp, which is usually made of insulating tissue to avoid current leakage or false triggering. The electrode 102 is the part that contacts the patient's skin and is responsible for conducting bioelectric signals. The electrode 102 is generally made of silver / silver chloride, gold or other conductive tissues. The connecting wire connects the electrode 102 to the monitoring equipment (such as an electrocardiogram or electroencephalograph) and is responsible for transmitting signals. The handle is the operating part of the electrode clamp, which is usually designed to be ergonomic and easy to hold and operate. The electrode clamp is also equipped with an elastic component, which is used to assist the electrode clamp to automatically open or close the clamp body 101. This can improve the convenience of use in the case of frequent clamping and releasing.

[0158] Between the extension rod 103 and the electrode 102, a Hall sensor 106 and a circular coil 107 are relatively arranged on the clamp body 101. The circular coil 107 is used to generate a magnetic field. The Hall sensor 106 senses the magnetic field based on the Hall effect, so that the thickness of the human tissue clamped by the clamp body 101 can be measured. Specifically:

[0159]

[0160] Wherein, B(D) represents the function between magnetic field strength and tissue thickness value D; k and n are constants determined experimentally. Appropriate k and n values ​​can be fitted by calibrating the magnetic field strength measured at different tissue thickness values ​​D before leaving the factory.

[0161] When calculating the magnetic field strength, the Hall voltage can be used to calculate the actual magnetic field strength. When current passes through a conductor and there is a magnetic field perpendicular to the current direction, a voltage perpendicular to the current and magnetic field will be generated inside the conductor (Hall voltage V H ), specifically:

[0162]

[0163] Where B represents the magnetic field strength; V H is the Hall voltage obtained by keeping the current I of the circular coil 107 constant through the Hall sensor 106; j is the concentration of carriers; q is the charge of the carriers.

[0164] According to the above formula, the Hall voltage V can be obtained by combined calculation. H The calculation relationship between the tissue thickness value D is:

[0165]

[0166] The thickness of human tissue has a certain attenuation effect on the magnetic field strength generated by the coil. Especially in fields such as medical imaging and bioelectromagnetism, this influence needs to be considered and compensated. Through experiments, the attenuation characteristics of human tissues of different thicknesses (such as skin, muscle, fat, etc.) to magnetic fields of specific frequencies are obtained, and a correction factor based on tissue thickness is established.

[0167] B corr =B measured ·C(d)

[0168] Among them, B corr is the magnetic field strength after compensation; B measured is the magnetic field strength actually measured; C(d) is the compensation factor determined experimentally, which is a function of the tissue thickness value D. It can be obtained by calibrating at different tissue thickness values ​​D at the factory.

[0169] The above method can effectively compensate for the attenuation effect of the thickness of human tissue on the magnetic field strength generated by the coil. The specific compensation strategy should be adjusted according to the application scenario, device characteristics and tissue type.

[0170] Furthermore, the electrode 102 is arranged on the inner side surface opposite to the clamp body 101 and has a mutually fitted electrode 102 surface, and between the extension rod 103 and the electrode 102, a Hall sensor 106 and a circular coil 107 are also relatively arranged on the clamp body 101, wherein the circular coil 107 is arranged in one of the clamp bodies 101, and the Hall sensor 106 is arranged in the other of the clamp bodies 101, and a surface of the Hall sensor 106 opposite to the circular coil 107 is recessed relative to the electrode 102 surface, and the recess depth is S, wherein S is between 0.5-2mm.

[0171] By making the end points of the connection line between the Hall sensor 106 and the circular coil 107 perpendicular to the electrode surface, and making the opposite side of the Hall sensor 106 and the circular coil 107 recessed by a suitable distance relative to the electrode surface, the Hall sensor 106 and the circular coil 107 can have a suitable clearance area during use, avoiding the adverse effect of human tissue on the measured tissue thickness value D, thereby improving the measurement accuracy.

[0172] The electrode clamp also includes a prompting device, which includes a speaker 109 and / or an indicator light 108. As the difference between the accumulated total energy E and the energy threshold T decreases, the occurrence frequency of the speaker 109 increases, and / or the color of the indicator light 108 changes or the flashing frequency increases.

[0173] In one implementation, the prompt device includes a multi-color indicator light 108. When the difference between the accumulated total energy E and the energy threshold T is large, the color of the multi-color indicator light 108 is green or white. As the difference between the accumulated total energy E and the energy threshold T decreases, the color of the multi-color indicator light 108 changes from green or white to red.

[0174] In one implementation, the prompt device includes an indicator light 108, and the flashing frequency of the indicator light 108 changes with the difference between the accumulated total energy E and the energy threshold T. When the accumulated total energy (E) approaches the energy threshold (T), the flashing frequency of the indicator light 108 will also increase accordingly.

[0175] This visual signal provides an intuitive feedback method, allowing the operator to quickly identify the working status of the electrode clamp in a tense medical environment. Through different flashing modes, the indicator light 108 can effectively convey the dynamic changes in energy use, allowing the operator to clearly understand the current energy level in any situation.

[0176] In one implementation, the electrode clamp integrates a speaker 109 and an indicator light 108 and other feedback mechanisms in various forms. The sound frequency of the speaker 109 changes with the difference between the accumulated total energy E and the energy threshold T. When the accumulated total energy (E) approaches the energy threshold (T), the sound frequency of the speaker 109 will also increase. These feedback mechanisms can respond to changes in the operating state of the electrode clamp in real time, especially to the difference between the accumulated total energy (E) and the energy threshold (T).

[0177] Example 3

[0178] The present invention provides a computer device, characterized in that it includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, it implements the medical electrode clamp power indication method as described in Example 1.

[0179] In one embodiment, the reference specification Figure 4 , showing a schematic structural diagram of a computer device provided by the present invention.

[0180] A computer device provided by the present invention includes: a memory 302, a processor 301, and a computer program stored in the memory 302 and executable on the processor 301, wherein the processor 301 implements the medical electrode clamp power indication method as described in any one of Example 1 when executing the computer program.

[0181] The computer device may include a processor 301 and a memory 302 storing computer program instructions.

[0182] Specifically, the processor 301 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiment of the present invention.

[0183] Among them, the memory 302 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 302 may include a hard disk drive (HDD), a floppy disk drive, a solid state drive (SSD), a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 302 may include a removable or non-removable (or fixed) medium. Where appropriate, the memory 302 may be inside or outside a data processing device. In a specific embodiment, the memory 302 is a non-volatile memory. In a specific embodiment, the memory 302 includes a read-only memory (ROM) and a random access memory (RAM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (Programmable Read-Only Memory, PROM for short), an erasable PROM (ErasableProgrammable Read-Only Memory, EPROM for short), an electrically erasable PROM (Electrically ErasableProgrammable Read-Only Memory, EEPROM for short), an electrically alterable ROM (ElectricallyAlterable Read-OnlyMemory, EAROM for short) or a flash memory (FLASH) or a combination of two or more of these. Under appropriate circumstances, the RAM can be a static random access memory (SRAM) or a dynamic random access memory (DRAM), wherein the DRAM can be a fast page mode dynamic random access memory (FPMDRAM), an extended data output dynamic random access memory (EDODRAM), a synchronous dynamic random access memory (SDRAM), etc.

[0184] The memory 302 may be used to store or cache various data files that need to be processed and / or used for communication, as well as possible computer program instructions executed by the processor 301 .

[0185] The processor 301 implements any one of the medical electrode clamp power indication methods in Example 1 by reading and executing the computer program instructions stored in the memory 302 .

[0186] In some embodiments, the computer device may further include a communication interface 303 and a bus 300. Figure 5 As shown, the processor 301, the memory 302, and the communication interface 303 are connected via a bus 300 and communicate with each other.

[0187] The communication interface 303 is used to implement communication between the modules, devices, units and / or equipment in the embodiment of the present invention. The communication interface 303 can also implement data communication with other components such as: external devices, image / data acquisition equipment, databases, external storage, and image / data processing workstations.

[0188] The bus 300 includes hardware, software or both, and couples the components of the computer device to each other. The bus 300 includes but is not limited to at least one of the following: a data bus, an address bus, a control bus, an expansion bus, and a local bus. By way of example and not limitation, bus 300 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Extended Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hyper Transport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local Bus (VLB) bus, or other suitable buses or a combination of two or more of these. Bus 300 may include one or more buses, where appropriate. Although embodiments of the present invention describe and illustrate a particular bus, the present invention contemplates any suitable bus or interconnect.

[0189] The computer device provided by the present invention can realize the steps and effects of the medical electrode clamp power indication method in the above-mentioned embodiment 1. To avoid repetition, the present invention will not go into details.

[0190] Example 4

[0191] The present invention provides a computer-readable storage medium on which a computer program is stored, characterized in that when the program is executed by a processor, the medical electrode clamp power indication method described in any one of Example 1 is implemented.

[0192] A computer-readable storage medium provided by the present invention can implement the steps and effects of the medical electrode clamp power indication method in the above-mentioned embodiment 1. To avoid repetition, the present invention will not go into details.

[0193] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0194] The present invention proposes a power indication method for medical electrode clamps, which obtains the thickness value D of the clamped tissue, dynamically calculates the energy threshold T, and monitors the output voltage and current of the electrode clamp in real time to calculate the instantaneous power and the accumulated total energy E. The advantage of this solution is that it can automatically adjust the power output according to the actual tissue characteristics, improve the energy utilization efficiency, reduce the potential damage to the tissue, and at the same time can provide real-time feedback on the operation status, enhance the safety and accuracy of the operation, and effectively solve the shortcomings of the existing technology.

[0195] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for indicating power of a medical electrode clamp, characterized in that: include: S1: Obtaining a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D; S2: Collect the output voltage V and current I of the electrode clamp, and calculate the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point; S3: Calculate the single continuous cumulative capacity of the electrode clamp, taking the start time of the single continuous power-on as the starting point, and calculate the cumulative total energy E in the power-on according to the instantaneous power P(t); S4: Based on the proportional relationship between the accumulated total energy E and T, the control prompt device responds to the change of the proportional relationship.

2. The medical electrode clamp power indication method according to claim 1, characterized in that: The S3 specifically includes: The total energy is calculated by integrating the power curve:

3. The medical electrode clamp power indication method according to claim 2, characterized in that: The energy threshold T meets the following requirements: T=E max =ΔT max ·ρ·c p ·A·D Where, ΔT max The maximum temperature rise allowed for the organization at the start of a single continuous power-on (in Kelvin (K) or Celsius (℃)). max is related to ΔT max The corresponding electrode clamp allows the accumulated safe input energy (joule J) during operation; ρ is the density of the tissue (kg / m 3 );c p is the specific heat capacity of the tissue (J / (kg·K)); D is the thickness of the tissue (m); A is the cross-sectional area of ​​the tissue (m 2 ).

4. The medical electrode clamp power indication method according to claim 3, characterized in that: ΔT max It is 42℃.

5. The medical electrode clamp power indication method according to claim 1, characterized in that: The S1 specifically includes: also includes measuring the Hall voltage V H , Hall voltage V H Conversion relationship between thickness value D Where, I is the current flowing through the circular coil on the electrode clamp body 101; V H is the Hall voltage obtained by keeping the circular coil current I constant through the Hall sensor; j is the concentration of carriers; q is the charge of the carriers; where the relationship between D and k and n is: Wherein, B(D) represents the function between magnetic field strength and tissue thickness value D; k and n are constants determined experimentally. Appropriate k and n values ​​can be fitted by calibrating the magnetic field strength measured at different tissue thickness values ​​D before leaving the factory.

6. The medical electrode clamp power indication method according to claim 1, characterized in that: The electrode clamp also includes a prompting device, which includes a speaker and / or an indicator light. As the difference between the accumulated total energy E and the energy threshold T decreases, the speaker's frequency of occurrence increases, and / or the indicator light changes color or its flashing frequency increases.

7. An electrode clamp power indicator, characterized in that: include: An acquisition module, used for acquiring a thickness value D between the tissues clamped by the electrode clamp, and calculating an energy threshold value T according to the thickness value D; The acquisition module is used to acquire the output voltage V and current I of the electrode clamp and calculate the instantaneous power P(t)=V(t)×I(t) of the electrode clamp at the sampling time point; A calculation module is used to calculate the single continuous accumulation capacity of the electrode clamp, taking the start time of a single continuous power-on as the starting point, and calculating the accumulated total energy E in the power-on according to the instantaneous power P(t); The control module is used to control the prompt device to respond to the change of the proportional relationship between the accumulated total energy E and T.

8. A medical electrode clamp comprising: The power indicator device of the medical electrode forceps as claimed in claim 7, and the medical electrode forceps are composed of a forceps body, an electrode, an extension rod, a connecting wire, a handle and an elastic component, wherein the electrode is arranged at one end of the forceps body away from the handle, and the extension rod connects the forceps body and the handle; The electrode is arranged on the inner side surface opposite to the clamp body and has electrode surfaces that fit each other. Between the extension rod and the electrode, a Hall sensor and a circular coil are also arranged relatively on the clamp body, wherein the circular coil is arranged in one of the clamp bodies, and the Hall sensor is arranged in the other of the clamp bodies 101. The surface of the Hall sensor opposite to the circular coil is recessed relative to the electrode surface, and the depth of the recess is S, wherein S is between 0.5-2mm.

9. A computer device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the medical electrode clamp power indication method as described in any one of claims 1 to 6 when executing the computer program.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the medical electrode clamp power indication method according to any one of claims 1 to 6 is implemented.

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