Anesthesia plane measuring instrument

Abstract

The utility model provides an anesthesia level measuring instrument, which comprises a shell, a first circuit, a second circuit, a first switch, a second switch, a third switch and a battery, the first circuit, the second circuit and the battery are all arranged in the shell, the whole shell is Y-shaped, the first switch is arranged in the shell, and the second switch is arranged in the shell. The housing has a handle portion, a first branch portion, and a second branch portion. A first electrode plate is arranged at the tail end of the first branch part, and a second electrode plate is arranged at the tail end of the second branch part. And the Y-shaped shell is adopted, so that one-hand operation can be realized, and convenience and rapidness are realized. Current is output through the first circuit and the second circuit to stimulate the to-be-measured skin, the temperature of the to-be-measured skin is detected through the temperature sensor, the anesthesia plane can be safely, efficiently and rapidly measured without depending on perception of a patient and an anesthetist, the anesthetist can more clearly know the anesthesia condition of the patient, and follow-up treatment is facilitated. The utility model is mainly used in the field of medical instruments.

Description

Technical Field

[0001] This technical solution relates to the field of medical devices, specifically to an anesthesia plane measuring instrument. Background Technology

[0002] Spinal anesthesia is a commonly used method of anesthesia in clinical surgery. Anesthetic drugs are injected into the subarachnoid or epidural space of the spinal canal, blocking the spinal nerve roots and producing anesthesia in the corresponding area innervated by those nerve roots. The anesthetic level is a concept in anesthesia, referring to the area or upper and lower boundaries of the loss of pain sensation in the skin. Currently, most anesthesiologists measure the anesthetic level using methods such as tactile measurement by touch, thermometry by applying alcohol, and pain measurement by using painful stimuli. However, obtaining an accurate anesthetic level is difficult when encountering patients who are uncooperative or have cognitive impairment. Utility Model Content

[0003] This utility model provides an anesthesia plane measuring instrument to solve one or more technical problems existing in the prior art, and at least provides a beneficial option or creates conditions.

[0004] An anesthesia plane measuring instrument is provided, comprising: a housing, a first circuit, a second circuit, a first switch, a second switch, a third switch, and a battery.

[0005] The first circuit, the second circuit, and the battery are all installed inside the housing. The housing is Y-shaped and has a handle, a first branch, and a second branch.

[0006] The first branch has a first electrode plate at its end, and the second branch has a second electrode plate at its end. The first electrode plate and the second electrode plate are used to adhere to the skin to be tested.

[0007] The positive terminal of the battery is connected to one end of the first switch, the other end of the first switch is connected to one end of the second switch and one end of the third switch, the other end of the second switch is connected to the positive power supply terminal of the first circuit, the other end of the third switch is connected to the positive power supply terminal of the second circuit, and the negative power supply terminals of the first circuit and the second circuit are both connected to the negative terminal of the battery.

[0008] The first switch, the second switch, and the third switch are all located at the handle position.

[0009] The positive output terminal of the first circuit is connected to the first electrode plate, the negative output terminal of the first circuit is connected to the second electrode plate, the positive output terminal of the second circuit is connected to the first electrode plate, and the negative output terminal of the second circuit is connected to the second electrode plate.

[0010] The first circuit is used to generate a first stimulating current between the first electrode and the second electrode, and the second circuit is used to generate a second stimulating current between the first electrode and the second electrode, wherein the first stimulating current is less than the second stimulating current.

[0011] Furthermore, it also includes: a fourth switch, a temperature sensor, a display screen, and a main control module;

[0012] The temperature sensor is located at the end of the first branch or the end of the second branch, and the display screen is located at the handle position.

[0013] One end of the fourth switch is connected to the positive terminal of the battery, and the other end of the fourth switch is connected to the positive power supply terminal of the main control module.

[0014] The negative power supply terminal of the main control module is connected to the negative terminal of the battery, and the main control module is connected to the temperature sensor and the display screen respectively.

[0015] The temperature sensor is used to collect the temperature signal of the skin to be tested, and the main control module is used to convert the temperature signal into a temperature value and display the temperature value on the display screen.

[0016] Furthermore, the first circuit includes a second switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a first transistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first coil, a second coil, and a third coil; one end of the second switch is connected to the positive terminal of the battery, and the other end of the second switch is connected to one end of the first resistor, the collector of the first transistor, and one end of the first coil; the other end of the first resistor is connected to the anode of the first diode, the cathode of the first diode is connected to the cathode of the battery, and one end of the second coil is connected to the second resistor; the other end of the second resistor is connected to the base of the first transistor, and the emitter of the first transistor is connected to... The other end of the second coil is connected, one end of the third coil is connected to one end of the first capacitor and the negative terminal of the second diode, the other end of the third coil is connected to one end of the third capacitor, one end of the third resistor and the first electrode plate, the other end of the second diode is connected to the other end of the third capacitor, one end of the fourth capacitor and the negative terminal of the third diode, the positive terminal of the third diode is connected to the other end of the first capacitor, the negative terminal of the fourth diode and one end of the second capacitor, the positive terminal of the fourth diode is connected to the other end of the fourth capacitor, the negative terminal of the fifth diode and one end of the fifth capacitor, the positive terminal of the fifth diode is connected to the other end of the second capacitor and the negative terminal of the sixth diode, the positive terminal of the sixth diode is connected to the other end of the fifth capacitor, one end of the fourth resistor and the second electrode plate, and the other end of the third resistor is connected to the other end of the fourth resistor.

[0017] Furthermore, the second circuit includes: a third switch, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, a twelfth diode, a second transistor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a fourth coil, a fifth coil, and a sixth coil. One end of the third switch is connected to the positive terminal of the battery, and the other end of the third switch is connected to one end of the fifth resistor, one end of the fourth coil, and the collector of the second transistor. The other end of the fifth resistor is connected to the anode of the seventh diode, and the cathode of the seventh diode is connected to the cathode of the battery and one end of the fifth coil. The emitter of the second transistor is connected to the other end of the fifth coil, and the base of the second transistor is connected to one end of the sixth resistor. The other end of the resistor is connected to the other end of the fourth coil. One end of the sixth coil is connected to the negative terminal of the eighth diode and one end of the sixth capacitor. The other end of the sixth coil is connected to one end of the eighth capacitor, one end of the seventh resistor, and the first electrode plate. The positive terminal of the eighth diode is connected to one end of the eighth capacitor, one end of the ninth capacitor, and the negative terminal of the ninth diode. The positive terminal of the ninth diode is connected to the other end of the sixth capacitor, one end of the seventh capacitor, and the negative terminal of the tenth diode. The positive terminal of the tenth diode is connected to the other end of the ninth capacitor, one end of the tenth capacitor, and the negative terminal of the eleventh diode. The positive terminal of the eleventh diode is connected to the other end of the seventh capacitor and the negative terminal of the twelfth diode. The positive terminal of the twelfth diode is connected to the tenth capacitor, the eighth resistor, and the second electrode plate. The other ends of the seventh and eighth resistors are connected.

[0018] Preferably, the battery is a dry cell battery.

[0019] Preferably, the display screen is a liquid crystal display screen.

[0020] Furthermore, the first circuit is a voltage multiplier circuit, which increases the output voltage of the battery, and the first stimulation current can be calculated through the human body impedance.

[0021] Furthermore, the second circuit is a voltage multiplier circuit, which increases the output voltage of the battery, and the second stimulation current can be calculated through the human body impedance.

[0022] Preferably, the outer shell is made of plastic.

[0023] Furthermore, the first stimulation current is smaller than the second stimulation current.

[0024] The beneficial effects of this invention are: It adopts a Y-shaped shell design, allowing for one-handed operation, which is convenient and quick. By stimulating the skin to be tested with current output through the first and second circuits, and using a temperature sensor to detect the temperature of the skin, it can safely, efficiently, and quickly measure the anesthesia level, eliminating reliance on the perception of the patient and anesthesiologist. This allows doctors to more clearly understand the patient's anesthesia status, facilitating subsequent treatment. This invention is mainly used in the field of medical devices. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0026] Figure 1 This is a schematic diagram of the overall structure of the anesthesia plane measuring instrument;

[0027] Figure 2 This is a schematic diagram of the control module connection structure;

[0028] Figure 3 This is a schematic diagram of the first circuit connection structure;

[0029] Figure 4 This is a schematic diagram of the second circuit connection structure. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 . Figure 1 This is a schematic diagram of the overall structure of the anesthesia plane measuring instrument. Figure 2 This is a schematic diagram of the control module connection structure. Figure 3 This is a schematic diagram of the first circuit connection structure. Figure 4 This is a schematic diagram of the second circuit connection structure.

[0032] Anesthesia is generally considered to be a reversible inhibition of the central and / or peripheral nervous systems produced by drugs or other methods. The main characteristic of this inhibition is the loss of sensation, especially pain.

[0033] The term "anesthesia," as the name suggests, refers to the temporary loss of sensation in a patient, either generalized or localized, through medication or other methods to achieve painless surgical treatment. Anesthesiology is a science that utilizes fundamental theories, clinical knowledge, and techniques related to anesthesia to eliminate surgical pain, ensure patient safety, and create favorable conditions for surgery. Currently, anesthesiology has become a specialized and independent discipline within clinical medicine, primarily encompassing clinical anesthesiology, emergency resuscitation medicine, critical care medicine, pain management, and other related medical research and their mechanisms. It is a comprehensive discipline studying anesthesia, analgesia, emergency resuscitation, and critical care medicine. In spinal anesthesia, after sensory nerves are blocked, the area of ​​loss of pain sensation in the skin can be determined using acupuncture; its upper and lower boundaries are called the anesthetic plane.

[0034] To facilitate the measurement of the anesthesia level, in some further specific examples, an anesthesia level measuring instrument is provided, comprising: a housing, a first circuit, a second circuit, a first switch K1, a second switch K2, a third switch K3, and a battery BAT.

[0035] The first circuit, the second circuit, and the battery BAT are all installed inside the housing. The housing is Y-shaped and has a handle 100, a first branch 110, and a second branch 120.

[0036] The first branch 110 is provided with a first electrode plate P1 at its end, and the second branch 120 is provided with a second electrode plate P2 at its end. The first electrode plate P1 and the second electrode plate P2 are used to adhere to the skin to be tested.

[0037] The positive terminal of battery BAT is connected to one end of the first switch K1. The other end of the first switch K1 is connected to one end of the second switch K2 and one end of the third switch K3. The other end of the second switch K2 is connected to the positive power supply terminal of the first circuit. The other end of the third switch K3 is connected to the positive power supply terminal of the second circuit. The negative power supply terminals of the first circuit and the negative power supply terminals of the second circuit are both connected to the negative terminal of battery BAT.

[0038] The first switch K1, the second switch K2, and the third switch K3 are all located at the handle position.

[0039] The positive output terminal of the first circuit is connected to the first electrode plate P1, the negative output terminal of the first circuit is connected to the second electrode plate P2, the positive output terminal of the second circuit is connected to the first electrode plate P1, and the negative output terminal of the second circuit is connected to the second electrode plate P2.

[0040] The first circuit is used to generate a first stimulating current between the first electrode plate P1 and the second electrode plate P2, and the second circuit is used to generate a second stimulating current between the first electrode plate P1 and the second electrode plate P2.

[0041] The anesthesia plane measuring instrument also includes: a fourth switch, a temperature sensor, a display screen, and a main control module;

[0042] The temperature sensor is located at the end of the first branch or the end of the second branch, and the display screen is located on the handle.

[0043] One end of the fourth switch is connected to the positive terminal of the battery, and the other end of the fourth switch is connected to the positive power supply terminal of the main control module.

[0044] The negative power supply terminal of the main control module is connected to the negative terminal of the battery, and the main control module is connected to the temperature sensor and the display screen respectively.

[0045] The temperature sensor is used to collect the temperature signal of the skin to be tested, and the main control module is used to convert the temperature signal into a temperature value and display the temperature value on the display screen.

[0046] The anesthesiologist simply holds the handle 100 of the outer casing with one hand, places the first electrode P1 and the second electrode P2 against the skin to be tested, turns on the first switch K1, and then selects the desired stimulation level. For low current, the second switch K2 is turned on; for high current, the third switch K3 is turned on. After turning on the fourth switch K4, the temperature sensor continuously monitors the temperature of the skin to be tested and displays the current temperature on the display screen 130 via the main control module. The display screen is an LCD screen, which uses a liquid crystal solution in two polarizing materials. When current passes through the liquid, the crystals rearrange to achieve imaging, offering advantages such as low power consumption, small size, and low radiation. Observing the temperature change on the display screen, if the temperature of the skin to be tested rises by more than 0.5°C, and the patient feels no electrical stimulation, this indicates that the anesthesia plane has reached the measurement point.

[0047] In order to output a lower voltage, in some further specific examples, the first circuit includes a second switch K2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode D6, a first transistor Q1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a first coil L1, a second coil L2, and a third coil L3.

[0048] One end of the second switch K2 is connected to the positive terminal of the battery BAT. The other end of the second switch K2 is connected to one end of the first resistor R1, the collector of the first transistor Q1, and one end of the first coil L1. The other end of the first resistor R1 is connected to the positive terminal of the first diode D1. The negative terminal of the first diode D1 is connected to the negative terminal of the battery BAT. One end of the second coil L2 is connected to one end of the second resistor R2. The other end of the second resistor R2 is connected to the base of the first transistor Q1. The emitter of the first transistor Q1 is connected to the other end of the second coil L2. One end of the third coil L3 is connected to one end of the first capacitor C1 and the negative terminal of the second diode D2. The other end of the third coil L3 is connected to one end of the third capacitor C3 and the third resistor R1. One end of R3 is connected to the first electrode P1. The other end of the second diode D2 is connected to the other end of the third capacitor C3, one end of the fourth capacitor C4 and the negative terminal of the third diode D3. The positive terminal of the third diode D3 is connected to the other end of the first capacitor C1, the negative terminal of the fourth diode D4 and one end of the second capacitor C2. The positive terminal of the fourth diode D4 is connected to the other end of the fourth capacitor C4, the negative terminal of the fifth diode D5 and one end of the fifth capacitor C5. The positive terminal of the fifth diode D5 is connected to the other end of the second capacitor C2 and the negative terminal of the sixth diode D6. The positive terminal of the sixth diode D6 is connected to the other end of the fifth capacitor C5, one end of the fourth resistor R4 and the second electrode P2. The other end of the third resistor R3 is connected to the other end of the fourth resistor R4.

[0049] In order to output a higher voltage, in some further specific examples, the second circuit includes: a third switch K3, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a seventh diode D7, an eighth diode D8, a ninth diode D9, a tenth diode D10, an eleventh diode D11, a twelfth diode D12, a second transistor Q2, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, a fourth coil L4, a fifth coil L5, and a sixth coil L6.

[0050] One end of the third switch K3 is connected to the positive terminal of the battery BAT. The other end of the third switch K3 is connected to one end of the fifth resistor R5, one end of the fourth coil L4, and the collector of the second transistor Q2. The other end of the fifth resistor R5 is connected to the positive terminal of the seventh diode D7. The negative terminal of the seventh diode D7 is connected to the negative terminal of the battery BAT and one end of the fifth coil L5. The emitter of the second transistor Q2 is connected to the other end of the fifth coil L5. The base of the second transistor Q2 is connected to one end of the sixth resistor R6. The other end of the sixth resistor R6 is connected to the other end of the fourth coil L4. One end of the sixth coil L6 is connected to the negative terminal of the eighth diode D8 and one end of the sixth capacitor C6. The other end of the sixth coil L6 is connected to one end of the eighth capacitor C8 and the seventh resistor R5. One end of R7 is connected to the first electrode P1. The positive terminal of the eighth diode D8 is connected to one end of the eighth capacitor C8, one end of the ninth capacitor C9, and the negative terminal of the ninth diode D9. The positive terminal of the ninth diode D9 is connected to the other end of the sixth capacitor C6, one end of the seventh capacitor C7, and the negative terminal of the tenth diode D10. The positive terminal of the tenth diode D10 is connected to the other end of the ninth capacitor C9, one end of the tenth capacitor C10, and the negative terminal of the eleventh diode D11. The positive terminal of the eleventh diode D11 is connected to the other end of the seventh capacitor C7 and the negative terminal of the twelfth diode D12. The positive terminal of the twelfth diode D12 is connected to the tenth capacitor C10, the eighth resistor R8, and the second electrode P2. The other ends of the seventh resistor R7 and the eighth resistor R8 are connected.

[0051] Under normal circumstances, the safe voltage the human body can withstand is 36V, and the safe current is 10mA. A current of 1mA passing through the body will generally be felt. Skin resistance is the resistance of the stratum corneum on the skin's surface. Its value varies considerably, depending on the skin's condition (whether it is damaged, its moisture level), the voltage of the electric shock, and the duration of the shock. When the skin is intact and dry, the human body's resistance can reach over 10kΩ, while when the stratum corneum is moist or damaged, the resistance drops sharply. Skin resistance mainly depends on the thickness of the outer stratum corneum; thicker layers have higher resistance, and thinner layers have lower resistance. Furthermore, it decreases with increasing skin moisture, the presence of chemicals, and dust, and is inversely proportional to the contact area. If the applied voltage increases and the current flows for a longer time, the skin resistance also decreases significantly.

[0052] The first and second circuits are voltage multiplier circuits. The first circuit can boost the voltage of the battery BAT to 10V, and the second circuit can boost the voltage of the battery BAT to 20V. In this embodiment, the skin resistance is taken as 10000Ω. It can be calculated that the first stimulation current output by the first circuit is 1mA, and the second stimulation current output by the second circuit is 2mA.

[0053] Although the description of this application has been quite detailed and particularly focused on the described embodiments, it is not intended to limit itself to any of these details or embodiments or any particular embodiment, but should be considered as effectively covering the intended scope of this application by referring to the appended claims and taking into account the prior art to provide a broad possible interpretation of these claims. Furthermore, the foregoing description of this application with respect to embodiments foreseeable by the inventors is intended to provide a useful description, and non-substantial modifications to this application that have not yet been foreseen may still represent equivalent modifications.

Claims

1. An anesthesia plane measuring instrument, characterized in that, include: The casing, the first circuit, the second circuit, the first switch, the second switch, the third switch, and the battery; The first circuit, the second circuit, and the battery are all installed inside the housing. The housing is Y-shaped and has a handle, a first branch, and a second branch. The first branch is provided with a first electrode plate at its end, and the second branch is provided with a second electrode plate at its end. The first electrode plate and the second electrode plate are used to adhere to the skin to be tested. The positive terminal of the battery is connected to one end of the first switch, the other end of the first switch is connected to one end of the second switch and one end of the third switch, the other end of the second switch is connected to the positive power supply terminal of the first circuit, the other end of the third switch is connected to the positive power supply terminal of the second circuit, and the negative power supply terminals of the first circuit and the second circuit are both connected to the negative terminal of the battery. The first switch, the second switch, and the third switch are all located at the handle position; The positive output terminal of the first circuit is connected to the first electrode plate, the negative output terminal of the first circuit is connected to the second electrode plate, the positive output terminal of the second circuit is connected to the first electrode plate, and the negative output terminal of the second circuit is connected to the second electrode plate. The first circuit is used to generate a first stimulating current between the first electrode and the second electrode, and the second circuit is used to generate a second stimulating current between the first electrode and the second electrode, wherein the first stimulating current is less than the second stimulating current.

2. The anesthesia plane measuring instrument according to claim 1, characterized in that, Also includes: The fourth switch, temperature sensor, display screen, and main control module; The temperature sensor is located at the end of the first branch or the end of the second branch, and the display screen is located at the handle position; One end of the fourth switch is connected to the positive terminal of the battery, and the other end of the fourth switch is connected to the positive power supply terminal of the main control module. The negative power supply terminal of the main control module is connected to the negative terminal of the battery, and the main control module is connected to the temperature sensor and the display screen respectively. The temperature sensor is used to collect the temperature signal of the skin to be tested, and the main control module is used to convert the temperature signal into a temperature value and display the temperature value on the display screen.

3. The anesthesia plane measuring instrument according to claim 1, characterized in that, The first circuit includes a second switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a first transistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a first coil, a second coil, and a third coil. One end of the second switch is connected to the positive terminal of the battery, and the other end of the second switch is connected to one end of the first resistor, the collector of the first transistor, and one end of the first coil. The other end of the first resistor is connected to the anode of the first diode, the cathode of the first diode is connected to the cathode of the battery, and one end of the second coil is connected to the first coil. The other end of the first coil is connected to one end of the second resistor, and the other end of the second resistor is connected to the base of the first transistor. The emitter of the first transistor is connected to the second coil. The other end of the coil is connected to the first capacitor and the negative terminal of the second diode. The other end of the third coil is connected to the third capacitor, the third resistor, and the first electrode plate. The other end of the second diode is connected to the third capacitor, the fourth capacitor, and the negative terminal of the third diode. The positive terminal of the third diode is connected to the first capacitor, the fourth diode, and the second capacitor. The positive terminal of the fourth diode is connected to the fourth capacitor, the fifth diode, and the fifth capacitor. The positive terminal of the fifth diode is connected to the second capacitor and the negative terminal of the sixth diode. The positive terminal of the sixth diode is connected to the fifth capacitor, the fourth resistor, and the second electrode plate. The other end of the third resistor is connected to the fourth resistor.

4. The anesthesia plane measuring instrument according to claim 1, characterized in that, The second circuit includes: a third switch, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, a twelfth diode, a second transistor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a fourth coil, a fifth coil, and a sixth coil. One end of the third switch is connected to the positive terminal of the battery. The other end of the third switch is connected to one end of the fifth resistor, one end of the fourth coil, and the collector of the second transistor. The other end of the fifth resistor is connected to the anode of the seventh diode. The cathode of the seventh diode is connected to the cathode of the battery and one end of the fifth coil. The emitter of the second transistor is connected to the other end of the fifth coil. The base of the second transistor is connected to one end of the sixth resistor. The other end of the sixth resistor... One end of the sixth coil is connected to the other end of the fourth coil. One end of the sixth coil is connected to the negative terminal of the eighth diode and one end of the sixth capacitor. The other end of the sixth coil is connected to one end of the eighth capacitor, one end of the seventh resistor, and the first electrode plate. The positive terminal of the eighth diode is connected to one end of the eighth capacitor, one end of the ninth capacitor, and the negative terminal of the ninth diode. The positive terminal of the ninth diode is connected to the other end of the sixth capacitor, one end of the seventh capacitor, and the negative terminal of the tenth diode. The positive terminal of the tenth diode is connected to the other end of the ninth capacitor, one end of the tenth capacitor, and the negative terminal of the eleventh diode. The positive terminal of the eleventh diode is connected to the other end of the seventh capacitor and the negative terminal of the twelfth diode. The positive terminal of the twelfth diode is connected to the tenth capacitor, the eighth resistor, and the second electrode plate. The other ends of the seventh resistor and the eighth resistor are connected.

5. The anesthesia plane measuring instrument according to claim 1, characterized in that, The battery is a dry cell battery.

6. The anesthesia plane measuring instrument according to claim 2, characterized in that, The display screen is a liquid crystal display screen.

7. The anesthesia plane measuring instrument according to claim 1, characterized in that, The first circuit is a voltage multiplier circuit, which increases the output voltage of the battery, and the first stimulation current can be calculated by the human body impedance.

8. The anesthesia plane measuring instrument according to claim 1, characterized in that, The second circuit is a voltage multiplier circuit, which increases the output voltage of the battery, and the second stimulation current can be calculated by the human body impedance.

9. The anesthesia plane measuring instrument according to claim 1, characterized in that, The outer shell is made of plastic.

10. An anesthesia plane measuring instrument according to claim 1, characterized in that, The first stimulation current is less than the second stimulation current.

Images