Rapid hemostatic fully automatic intelligent biopsy needle based on electric frequency control

Abstract

The present invention belongs to the technical field of medical devices, and specifically relates to a fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control, which includes a biopsy device and a sampling needle, wherein the sampling needle includes a sampling needle head, a sampling needle tube, a sampling groove and a trocar; the sampling needle head is connected to the front end of the sampling needle tube, the outer ring of the sampling needle tube is provided with an insulating layer, the sampling groove is provided on the outside of the sampling needle tube, and the left and right sides of the sampling groove are inclined, and the whole is columnar, the sampling needle tube is sleeved on the inside of the trocar, the inside of the sampling needle tube is provided with an electrode sheet, the outer ring of the electrode sheet is also sleeved with an insulating layer, and is electrically connected to the sampling needle head; the interior of the biopsy device is provided with a power supply device, which solves the problem that the current biopsy needle has poor control accuracy of current, the output current is unstable due to the resistance change of the sampling needle, and the hemostasis effect and surgical safety are affected.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control. Background Art

[0002] The existing biopsy needle, application number 202411525606.7, is a fully automatic biopsy needle and biopsy needle with a hemostatic function. This biopsy needle has a small sampling volume and is easily bent. In addition, the current output during hemostatic ablation after sampling is unstable. There is a positive correlation between metal resistance and temperature, that is, the higher the temperature, the greater the metal resistance. This is because rising temperature increases the thermal motion of atoms inside the metal, resulting in enhanced scattering of electrons by atoms, thereby increasing the resistance to current. When a metal sampling needle enters or comes into contact with the human body, the resistance value changes slightly due to the influence of human body temperature. At this time, if the output current accuracy is poor, the circuit will generate high or insufficient temperature, resulting in poor hemostasis and even affecting the safety of the operation. This phenomenon has become a problem that needs to be solved urgently by those in this field. Summary of the Invention

[0003] The purpose of the present invention is to provide a fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control, including a biopsy device and a sampling needle, the sampling needle including a sampling needle head, a sampling needle tube, a sampling groove and a trocar; the sampling needle head is connected to the front end of the sampling needle tube, the outer ring of the sampling needle tube is provided with an insulating layer, the sampling groove is provided on the outside of the sampling needle tube, and the left and right sides of the sampling groove are inclined, and the whole is columnar, the sampling needle tube is sleeved on the inside of the trocar, the inside of the sampling needle tube is provided with an electrode sheet, the outer ring of the electrode sheet is also sleeved with an insulating layer, and is electrically connected to the sampling needle head; a power supply device is provided inside the biopsy device, an electric frequency control system is provided inside the power supply device, the power supply device is electrically connected to the electrode sheet, and the sampling needle head is metal.

[0005] The present invention further illustrates that the electric frequency control system includes a high-frequency signal module, a high-frequency control module, an output module, a feedback module, a power control module and an ACDC module. The high-frequency signal module is electrically connected to the ACDC module and the high-frequency control module respectively, the ACDC module is electrically connected to the high-frequency control module, the high-frequency control module is electrically connected to the output module, the output module is electrically connected to the electrode sheet and the feedback module respectively, the feedback module is electrically connected to the power control module, and the power control module is electrically connected to the output module and the ACDC module respectively; the high-frequency signal module is used to receive current and emit a high-frequency signal, the ACDC module is used to convert alternating current into direct current through a rectifier circuit, and the specific process includes rectification and filtering, the high-frequency control module is used to input the rectified and filtered current into the output module, the output module is used to input current into the electrode sheet and feed back the current signal to the feedback module, the feedback module is used to feed back the current signal to the power control module, and the power control module is used to control the electric frequency power and receive the current signal.

[0006] The present invention further describes that the power control module includes an electrical frequency optimization unit, a resistance unit and a body temperature prediction unit. The body temperature prediction unit is electrically connected to the resistance unit, and the resistance unit is electrically connected to the electrical frequency optimization unit. The electrical frequency optimization unit is used to optimize the output current, the resistance unit is used to predict the resistance value of the sampling needle, and the body temperature prediction unit is used to predict human body temperature.

[0007] The present invention further illustrates that the operation steps of the electric frequency control system include: step S1, receiving current through the high-frequency signal module and sending a high-frequency signal, then the ACDC module converts the alternating current into direct current through the rectifier circuit, controls the electric frequency power through the power control module, inputs the rectified and filtered current into the output module, and inputs the current into the electrode sheet through the output module; step S2, the output current signal is fed back to the feedback module, and then the current signal is fed back to the power control module, and the current signal is received through the power control module.

[0008] The present invention further illustrates that step S1 includes: step S1.1, measuring the patient's body temperature before the operation, preliminarily calculating the resistance of the sampling needle based on the body temperature, and then optimizing the output current based on the resistance; step S1.2, optimizing the patient's body temperature based on the patient's nervousness during the operation, changing the resistance value of the sampling needle, thereby optimizing the output current for the second time, and entering step S1.3 when the resistance value is greater than the system set value, otherwise entering step S1.5; step S1.3, the temperature generated by the circuit is high, thereby optimizing the output current for the third time; step S1.4, the mood gradually stabilizes during the operation, and the body temperature gradually decreases, thereby optimizing the output current for the fourth time, and finally the stability of the current after the fourth optimization is improved, and optimization is performed for the fifth time.

[0009] The present invention further illustrates that in step S1.1, the optimized output current is:

[0010] , is the resistance value of the sampling needle, is the resistance value of the sampling needle at constant temperature, is the temperature coefficient, is the difference between the patient's body temperature and the constant temperature; that is, , For an optimized output current, is the highest resistance value of the sampling needle, It is the maximum output current of the power supply device.

[0011] The present invention further illustrates that in step S1.2, the secondary optimized output current is: , , For the secondary optimized output current, is the resistance value of the sampling needle after the body temperature changes, It is the difference between the patient's body temperature and the constant temperature after the temperature changes; that is, the patient's emotional tension during the operation causes the body temperature to rise, thereby optimizing the body temperature data and further improving the output current.

[0012] The present invention further illustrates that in step S1.2 and step S1.3, the three optimized output currents are: hour, The normal resistance value of the sampling needle: , Optimize output current three times, It is the reduced output current value in the loop state; when hour: .

[0013] The present invention further illustrates that in step S1.4, the four optimized output currents are: hour: , Optimize output current four times, It is the difference between the patient's body temperature and the constant temperature after the patient's body temperature gradually stabilizes during surgery; hour: .

[0014] The present invention further illustrates that in step S1.4, the five optimized output currents are: hour: , is five times the optimized output current, and , The output current set for the system, The output current value set for the system; when hour: .

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the biopsy needle used in the present invention has a larger area and can sample more than the traditional single groove by setting a columnar sampling groove, and has high overall strength and is not easy to bend, so as to achieve rapid tissue ablation and coagulation, and avoid needle tract bleeding. At the same time, the electric frequency is automatically controlled by the electric frequency control system, and the coagulation effect and safety are higher. During the operation, the patient's body temperature affects the resistance value of the sampling needle. At this time, the output current is optimized according to the patient's body temperature. On the one hand, it ensures that the output current is sufficient, and it can stop bleeding smoothly and promptly, and avoid excessive current damaging the human body. On the other hand, it avoids insufficient output current and poor hemostasis effect. The current output accuracy is high, the ablation and coagulation effect is better, and the safety of the operation is further improved. In addition, due to emotional tension, the patient's body temperature gradually rises. At this time, the body temperature data is optimized, thereby optimizing the resistance value of the sampling needle, so that the output current is optimized and the output current is increased, so as to avoid insufficient temperature when a loop is generated between the electrode sheet and the sampling needle, resulting in failure to stop bleeding quickly and in time, and the current output accuracy is further improved.

[0016] When the resistance of the sampling needle is large, the temperature of the circuit is high. At this time, in order to avoid excessive temperature that may damage the human body, the output current is relatively reduced. The output current is optimized three times, and the high-frequency voltage control accuracy is higher and the safety is stronger. As the operation progresses, the patient's mood gradually stabilizes, so that the patient's body temperature gradually returns to normal, and the output current is optimized four times to further reduce the output current. When the biopsy needle is inserted into the patient's body for sampling, as the sampling is completed, the patient's body temperature gradually recovers, thereby reducing the output current to avoid excessive output current that may damage the human body, and further improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of the sampling needle of the present invention;

[0019] Figure 2 Schematic diagram showing the difference between the sampling needle of the present invention and a traditional sampling needle;

[0020] Figure 3 This is a schematic diagram of the module connection relationship of the electric frequency control system of the present invention;

[0021] In the figure: 1. Sampling needle; 2. Sampling needle tube; 3. Sampling slot; 4. Trocar; 5. Electrode sheet; 6. Insulation layer. DETAILED DESCRIPTION

[0022] The following is a non-limiting detailed description of the technical solutions of the present invention in conjunction with preferred embodiments and the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 3 The present invention provides a technical solution: a fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control, including a biopsy device and a sampling needle, the sampling needle including a sampling needle head 1, a sampling needle tube 2, a sampling slot 3 and a trocar 4;

[0024] The sampling needle 1 is connected to the front end of the sampling needle tube 2. The outer ring of the sampling needle tube 2 is provided with an insulating layer 6. The sampling groove 3 is provided on the outside of the sampling needle tube 2, and the left and right sides of the sampling groove 3 are inclined. The whole is cylindrical. The sampling needle tube 2 is sleeved inside the cannula needle 4. The interior of the sampling needle tube 2 is provided with an electrode sheet 5. The outer ring of the electrode sheet 5 is also sleeved with an insulating layer 6 and is electrically connected to the sampling needle 1.

[0025] The biopsy device is provided with a power supply device inside, and an electric frequency control system is provided inside the power supply device. The power supply device is electrically connected to the electrode sheet 5, and the sampling needle 1 is metal;

[0026] During the biopsy process, the biopsy device is started to pop out the cannula needle 4 and cut the tissue. The cut tissue is located in the sampling slot 3. After the sampling slot 3 is columnar, compared with the traditional single slot, its area is larger, more samples can be taken, and the overall strength is high and it is not easy to bend. Then the power supply device in the biopsy device supplies power to energize the electrode 5. The electrode 5 generates current and introduces it into the sampling needle 1. Since the sampling needle 1 is made of metal, and the sampling needle tube 2 and the outer circle of the electrode 5 are both provided with an insulating layer 6, a circuit is generated between the electrode 5 and the sampling needle 1, and discharge is performed, thereby achieving tissue ablation and coagulation, avoiding needle tract bleeding, and automatically controlling the electric frequency through the electric frequency control system, so that the coagulation effect and safety are higher.

[0027] The electric frequency control system includes a high-frequency signal module, a high-frequency control module, an output module, a feedback module, a power control module and an ACDC module. The high-frequency signal module is electrically connected to the ACDC module and the high-frequency control module respectively, the ACDC module is electrically connected to the high-frequency control module, the high-frequency control module is electrically connected to the output module, the output module is electrically connected to the electrode sheet 5 and the feedback module respectively, the feedback module is electrically connected to the power control module, and the power control module is electrically connected to the output module and the ACDC module respectively;

[0028] The high-frequency signal module is used to receive current and emit high-frequency signals. The ACDC module is used to convert alternating current into direct current through a rectifier circuit. The specific process includes rectification and filtering. The high-frequency control module is used to input the rectified and filtered current into the output module. The output module is used to input current into the electrode sheet 5 and feed back the current signal to the feedback module. The feedback module is used to feed back the current signal to the power control module. The power control module is used to control the electric frequency power and receive the current signal.

[0029] The power control module includes an electric frequency optimization unit, a resistance unit and a body temperature prediction unit. The body temperature prediction unit is electrically connected to the resistance unit, and the resistance unit is electrically connected to the electric frequency optimization unit. The electric frequency optimization unit is used to optimize the output current, the resistance unit is used to predict the resistance value of the sampling needle 1, and the body temperature prediction unit is used to predict the human body temperature.

[0030] The operation steps of the electric frequency control system include:

[0031] Step S1: The high-frequency signal module receives current and sends a high-frequency signal. The ACDC module then converts the AC power into DC power through a rectifier circuit, controls the power of the power control module, and inputs the rectified and filtered current into the output module, which then inputs the current into the electrode sheet 5.

[0032] Step S2: The output current signal is fed back to the feedback module, and then the current signal is fed back to the power control module, and the current signal is received by the power control module.

[0033] Step S1 includes:

[0034] Step S1.1: Measure the patient's body temperature before surgery, preliminarily calculate the resistance of the sampling needle 1 based on the body temperature, and then optimize the output current based on the resistance;

[0035] Step S1.2: Optimize the patient's body temperature based on the patient's nervousness during the operation, sample the resistance change of needle 1, and then optimize the output current. If the resistance value is greater than the system set value, proceed to step S1.3; otherwise, proceed to step S1.5.

[0036] Step S1.3: The temperature generated by the loop is high, thereby optimizing the output current three times;

[0037] Step S1.4: During the operation, the patient's emotions gradually stabilize and the body temperature gradually decreases, so the output current is optimized four times. Finally, the stability of the current after the four optimizations is improved and the current is optimized for the fifth time.

[0038] In step S1.1, the optimized output current is:

[0039] , is the resistance value of the sampling needle 1, is the resistance value of the sampling needle 1 at constant temperature, is the temperature coefficient, is the difference between the patient's body temperature and constant temperature;

[0040] Right now , For an optimized output current, is the highest resistance value of sampling needle 1, is the maximum output current of the power supply device;

[0041] During the operation, the patient's body temperature affects the resistance value of the sampling needle 1. At this time, the output current is optimized according to the patient's body temperature. On the one hand, it ensures that the output current is sufficient to stop bleeding smoothly, promptly and quickly, and avoids excessive current that damages the human body. On the other hand, it avoids insufficient output current and poor hemostasis effect. The current output accuracy is high, the ablation and coagulation effect is better, and the safety of the operation is further improved.

[0042] In step S1.2, the secondary optimized output current is:

[0043] , , For the secondary optimized output current, is the resistance value of the sampling needle 1 after the body temperature changes, It is the difference between the patient's body temperature after the temperature changes and the constant temperature;

[0044] That is, the patient's emotional tension during surgery causes the body temperature to rise, thus optimizing the body temperature data and further increasing the output current;

[0045] During the operation, the patient's body temperature gradually rises due to emotional tension. At this time, the body temperature data is optimized, thereby optimizing the resistance value of the sampling needle 1, optimizing the output current, and increasing the output current to avoid insufficient temperature when a circuit is generated between the electrode sheet 5 and the sampling needle 1, resulting in the inability to stop bleeding quickly and in time, and the current output accuracy is further improved.

[0046] In steps S1.2 and S1.3, the three optimized output currents are:

[0047] when hour, is the normal resistance value of sampling needle 1: , Optimize output current three times, It is the reduced output current value in the loop state;

[0048] when hour: ;

[0049] When the resistance of the sampling needle 1 is large, the temperature of the circuit is high. At this time, in order to avoid excessive temperature damage to the human body, the output current is relatively reduced and optimized three times. The high-frequency voltage control accuracy is higher and the safety is stronger.

[0050] In step S1.4, the four optimized output currents are:

[0051] when hour: , Optimize output current four times, It is the difference between the patient's body temperature and the constant temperature after the patient's body temperature gradually stabilizes during surgery;

[0052] when hour: ;

[0053] As the operation progresses, the patient's emotions gradually stabilize, causing the patient's body temperature to gradually return to normal. The output current is optimized four times to further reduce the output current. When the biopsy needle is inserted into the patient's body for sampling, the patient's body temperature gradually recovers as the sampling is completed, thereby reducing the output current to avoid excessive output current that may damage the human body, further improving safety.

[0054] In step S1.4, the five optimized output currents are: hour:

[0055] , is five times the optimized output current, and , The output current set for the system, The output current value set for the system;

[0056] when hour: ;

[0057] Due to the high resistance value, the temperature generated by the circuit is extremely high. At this time, the output current is reduced to a large extent to further prevent the high circuit temperature from injuring the patient. The reduced current will not be too large, which can ensure the stability of the current and avoid insufficient voltage to stop bleeding smoothly. Safety is guaranteed to the greatest extent, and the current will not exceed the system setting value. Protection is performed again, and the output current is finely controlled to ensure the safety of the operation.

[0058] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0059] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the aforementioned embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fully automatic intelligent biopsy needle with rapid hemostasis based on electric frequency control, including a biopsy device and a sampling needle, characterized by: The sampling needle comprises a sampling needle head (1), a sampling needle tube (2), a sampling groove (3) and a trocar (4); The sampling needle (1) is connected to the front end of the sampling needle tube (2), the outer ring of the sampling needle tube (2) is provided with an insulating layer (6), the sampling groove (3) is provided on the outside of the sampling needle tube (2), and the left and right sides of the sampling groove (3) are inclined, and the whole is columnar, the sampling needle tube (2) is sleeved inside the trocar (4), and the interior of the sampling needle tube (2) is provided with an electrode sheet (5), the outer ring of the electrode sheet (5) is also sleeved with an insulating layer (6), and is electrically connected to the sampling needle (1); The biopsy device is provided with a power supply device inside, and an electric frequency control system is provided inside the power supply device. The power supply device is electrically connected to the electrode sheet (5). The sampling needle (1) is made of metal. The electric frequency control system includes a high-frequency signal module, a high-frequency control module, an output module, a feedback module, a power control module and an ACDC module. The power control module includes an electric frequency optimization unit, a resistance unit and a body temperature prediction unit. The operation steps of the electric frequency control system include: Step S1, receiving current through the high-frequency signal module and sending a high-frequency signal, then the ACDC module converts the alternating current into direct current through the rectifier circuit, controls the electric frequency power through the power control module, inputs the rectified and filtered current into the output module, and inputs the current into the electrode sheet (5) through the output module; Step S2: the output current signal is fed back to the feedback module, and then the current signal is fed back to the power control module, and the current signal is received by the power control module; The step S1 comprises: Step S1.1, measuring the patient's body temperature before surgery, preliminarily calculating the resistance of the sampling needle (1) based on the body temperature, and then optimizing the output current based on the resistance; Step S1.2, according to the patient's nervousness during the operation, the patient's body temperature is optimized, the resistance value of the sampling needle (1) changes, and the output current is optimized twice. When the resistance value is greater than the system setting value, step S1.3 is entered, otherwise step S1.5 is entered; Step S1.3: The temperature generated by the loop is high, thereby optimizing the output current three times; Step S1.4: During the operation, the patient's emotions gradually stabilize and the body temperature gradually decreases, so the output current is optimized four times. Finally, the stability of the current after the four optimizations is improved and the current is optimized for the fifth time.

2. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 1 is characterized by: The high-frequency signal module is electrically connected to the ACDC module and the high-frequency control module respectively, the ACDC module is electrically connected to the high-frequency control module, the high-frequency control module is electrically connected to the output module, the output module is electrically connected to the electrode sheet (5) and the feedback module respectively, the feedback module is electrically connected to the power control module, and the power control module is electrically connected to the output module and the ACDC module respectively; The high-frequency signal module is used to receive current and send high-frequency signals. The ACDC module is used to convert alternating current into direct current through a rectifier circuit. The specific process includes rectification and filtering. The high-frequency control module is used to input the rectified and filtered current into the output module. The output module is used to input the current into the electrode sheet (5) and feed back the current signal to the feedback module. The feedback module is used to feed back the current signal to the power control module. The power control module is used to control the electric frequency power and receive the current signal.

3. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 2 is characterized by: The body temperature prediction unit is electrically connected to the resistance unit, and the resistance unit is electrically connected to the electric frequency optimization unit. The electric frequency optimization unit is used to optimize the output current, the resistance unit is used to predict the resistance value of the sampling needle (1), and the body temperature prediction unit is used to predict the human body temperature.

4. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 3 is characterized by: In step S1.1, the optimized output current is: , is the resistance value of the sampling needle (1), is the resistance value of the sampling needle (1) at constant temperature, is the temperature coefficient, is the difference between the patient's body temperature and constant temperature; Right now , For an optimized output current, is the highest resistance value of the sampling needle (1), It is the maximum output current of the power supply device.

5. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 4 is characterized by: In step S1.2, the secondary optimized output current is: , , For the secondary optimized output current, is the resistance value of the sampling needle (1) after the body temperature changes, It is the difference between the patient's body temperature after the temperature changes and the constant temperature; That is, the patient's emotional tension during the operation causes the body temperature to rise, thereby optimizing the body temperature data and further increasing the output current.

6. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 5 is characterized by: In step S1.2 and step S1.3, the three optimized output currents are: when hour, is the normal resistance value of the sampling needle (1): , Optimize output current three times, It is the reduced output current value in the loop state; when hour: .

7. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 6 is characterized by: In step S1.4, the four optimized output currents are: when hour: , Optimize output current four times, The resistance difference of the sampling needle (1) between the patient's body temperature and the constant temperature after the patient's body temperature gradually stabilizes during the operation; when hour: .

8. The fast hemostatic fully automatic intelligent biopsy needle based on electric frequency control according to claim 7 is characterized by: In step S1.4, the five optimized output currents are: hour: , is five times the optimized output current, and , The output current set for the system, The output current value set for the system; when hour: .

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