Plasma low-temperature tumor ablation equipment

Abstract

The invention discloses plasma low-temperature tumor ablation equipment in the technical field of surgical equipment, which comprises a main control module, a plasma operation module and a radio frequency ablation module, and is characterized in that the main control module, the plasma operation module and the radio frequency ablation module are integrated in a shell; unified management is facilitated, meanwhile, the multi-device operation problem is solved, clinical operation of doctors is facilitated, and the existing multi-device purchasing cost is effectively reduced; through the arrangement of the peristaltic pump, the flow speed and the like can be adjusted through a human-computer interaction interface, and cold saline water injection or cold water scalpel head internal circulation can be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical equipment, and in particular to a plasma low-temperature tumor ablation device. Background Art

[0002] Currently, in the field of tumor ablation surgery, radiofrequency ablation and microwave ablation are used to destroy malignant and benign tumors, and have achieved widespread clinical effects and use in treatment.

[0003] Radiofrequency tumor ablation can be traced back to the early 20th century. It was originally used for clinical ablation of cardiac stenosis. Later, it was discovered that the thermal effect of radiofrequency electric field can also be used. Tumor tissue molecules are effectively inactivated during the heating of the radiofrequency electrode, achieving a therapeutic effect. The radiofrequency ablation needle is inserted into the tumor target tissue and continuously releases radiofrequency electric field heat to heat the tissue around the ablation needle to "80-100°C" within 10 to 30 minutes. The targeted tissue molecules produce protein denaturation and necrosis, achieving the purpose of treating and inactivating the tumor. It became the most advanced and effective tumor ablation technique at the time.

[0004] Since the range of radiofrequency ablation is generally only between 1 and 2 cm, it is not possible to completely eliminate larger tumors. In the 21st century, the country has adopted the use of 2450MHz magnetron-controlled microwave antennas that can be inserted into tumor-targeted tissues. It can release microwave radiation more quickly within "3 to 10 minutes", causing the water molecules in tumor tissue molecules to quickly rub and move to produce high temperatures of "100 to 120°C", causing the proteins in the tissue molecules to coagulate, denature and necrotize, and the thermal coagulation range can reach "2 to 3 cm". Due to the efficient treatment range of microwaves, the "radiofrequency tumor ablation heat" was once cancelled in clinical practice, and it has become the preferred tumor ablation method for major hospitals.

[0005] Radiofrequency and microwave tumor ablation both use high temperatures to kill tumor tissue molecules. While inactivating tissue molecules, they also destroy the thicker and more abundant vascular tissue. When blood vessels are destroyed, blood no longer flows to the tumor target tissue, and the necrotic tissue of the tumor ablation will slowly harden and become scars and connective tissue in the human body.

[0006] Plasma tumor ablation has opened a new revolution in the field of tumor ablation. Plasma breaks the molecular bonds of NaCl in saline and NaCl in tissues under the action of electric field. The low temperature effect of plasma is only 40-70℃, which can not completely destroy the surrounding vascular structure when vaporizing tumor tissue molecules, thus maintaining a good channel for blood flow after ablation.

[0007] Compared with radiofrequency and microwave ablation, plasma ablation has the following advantages: 1. The ablation operation time is shorter and more efficient, generally only 30 to 60 seconds; 2. The ablation range is generally more stable and can be controlled at around 2 to 3 cm; 3. The low temperature effect during ablation will not cause postoperative scar connectivization, and the scar can slowly shrink and absorb the tissue molecules destroyed by ablation through the vascular channels, achieving a reversible effect; 4. The plasma ablation needle is always in a low-temperature saline environment, and there is no high-temperature carbonization or adhesion during surgery, and the ablation range is stable. Different from radio frequency and microwave, which may cause high-temperature carbonization and tissue adhesion, making the ablation range unstable; 5. Radio frequency and microwave generally have complications after high-temperature effect surgery, and the recovery time is long. Plasma has low temperature and does not destroy blood vessels, which makes the post-operative absorption fast, complications are fewer, and healing is fast; 6. After radio frequency and microwave ablation, the tissue cannot be ablated again due to connective tissue formation, but plasma is different. It can be repeated within 6 months after ablation for the edges that have not been ablated cleanly; 7. Under the action of the plasma electric field, NaCl molecules in saline can stimulate the activity of normal tissue molecules, help phagocytize diseased tissue molecules, and accelerate the structural tissue immune mechanism; 8. The plasma tumor ablation needle adopts a bipolar water outlet design, which is different from the radio frequency single-stage ablation needle. During radio frequency ablation surgery, a neutral negative plate will be attached to the human body, which will not affect other tissues and nerves, and will not cause other postoperative complications. Summary of the invention

[0008] The present invention provides a plasma low-temperature tumor ablation device, which can increase the ablation area, has good guidance, no resistance to puncture, and can accurately adjust the position, so as to solve the defect of insufficient adaptability in existing radiofrequency ablation and microwave ablation devices.

[0009] The purpose of this section is to summarize some aspects in the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification summary and invention title of the present invention to avoid blurring the purpose of this section, specification summary and invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0010] To solve the above technical problems, the present invention provides a plasma low-temperature tumor ablation device, which adopts the following technical solution: it includes a main control module, a plasma surgery module and a tumor ablation module, and the main control module, plasma surgery module and tumor ablation module are placed in a casing.

[0011] Optionally, an output module is provided on the housing, and the output module includes a plasma output interface and a radiofrequency ablation output interface. The plasma output interface is connected to a plasma surgery module, and the main control module controls the output of the plasma surgery module.

[0012] Optionally, it also includes a surgical knife head, which includes a plasma knife head and a pedal interface, and the plasma output interface is connected to the plasma knife head.

[0013] Optionally, the tumor ablation module further comprises a peristaltic pump, through which cold saline injection or cold water is cooled and circulated in the ablation needle.

[0014] Optionally, it also includes a human-machine interaction interface arranged on the casing, and the human-machine interaction interface is connected to the peristaltic pump through the main control module.

[0015] Optionally, the tumor ablation module also includes

[0016] The nerve stimulation module is used to find the focus of the lesion nerves through a certain low-frequency rectangular wave before the formal tumor ablation module outputs, thereby stimulating the motor nerves;

[0017] The mode setting module includes fixed mode, power mode, automatic mode and temperature mode. The fixed mode outputs the set power value; the power mode outputs the power curve according to the real-time impedance to achieve different power values ​​for different impedances; the automatic mode is based on the power mode, and the automatic control algorithm can accept repeated treatments.

[0018] Optionally, the plasma surgery module and the tumor ablation module both include a temperature detection module, the temperature detection module of the plasma surgery module is used to detect the temperature of the plasma blade in real time, and the temperature detection module of the tumor ablation module is used to detect the temperature of the ablation needle in real time.

[0019] Optionally, it also includes a pedal, which includes an electrocuting pedal and an electrocoagulation pedal. The pedal contains a Bluetooth controller and a pedal wiring terminal. The main control module controls the pedal wirelessly via the Bluetooth controller. A pedal interface is provided on the casing, and the main control module controls the pedal via the pedal wiring terminal in a wired manner.

[0020] Optionally, the pedal chassis is also provided with a suction cup claw.

[0021] Optionally, the main control module is also connected to an overvoltage detection module and an overcurrent detection module.

[0022] In summary, the present invention includes at least one of the following beneficial effects:

[0023] 1. The present invention integrates the main control module, plasma surgery module and tumor ablation module into one housing, which facilitates unified management, solves the problem of multi-device operation, facilitates doctors' clinical surgery, and effectively reduces the cost of purchasing multiple devices.

[0024] 2. The present invention can adjust the flow rate through the human-machine interface by setting a peristaltic pump, and can perform cold saline injection or cold water circulation in the surgical blade.

[0025] 3. The present invention uses a nerve stimulation module to find the focus of the lesion nerves through a certain low-frequency rectangular wave before the formal radio frequency output, thereby stimulating the motor nerves; the mode setting module includes a fixed mode, a power mode, an automatic mode, and a temperature mode. The fixed mode outputs a fixed power value; the power mode outputs a power curve according to the real-time impedance to achieve different power values ​​for different impedances; the automatic mode, based on the power mode, the automatic control algorithm can accept repeated treatments, the purpose of which is to ensure that the impedance of the lesion should not rise too fast and prevent the lesion from carbonizing, etc. The setting of the foot pedal, the foot pedal 10 integrates wired and wireless functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the principle block diagram structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the present invention.

[0029] Explanation of the accompanying drawings: 1. Main control module; 2. Plasma surgery module; 3. Tumor ablation module; 4. Output module; 401. Plasma output interface; 402. Tumor ablation output interface; 403. Foot pedal interface; 5. Housing; 6. Surgical blade; 7. Peristaltic pump; 8. Human-computer interaction interface; 9. Temperature detection module; 10. Foot pedal. DETAILED DESCRIPTION

[0030] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be 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.

[0033] Embodiment 1

[0034] Reference Figure 1-Figure 2 The present invention discloses a plasma low-temperature tumor ablation device, comprising a main control module 1, a plasma surgery module 2 and a tumor ablation module 3, wherein the main control module 1, the plasma surgery module 2 and the tumor ablation module 3 are integrated in a housing 5. The present invention integrates the main control module 1, the plasma surgery module 2 and the tumor ablation module 3 in a housing 5, which is convenient for unified management, solves the problem of multi-device operation, facilitates doctors' clinical operations, and effectively reduces the cost of purchasing multiple devices.

[0035] In detail, in this embodiment, an output module 4 is provided on the housing 5, and the output module 4 includes a plasma output interface 401 and a radiofrequency ablation output interface 402. The plasma output interface 401 is connected to the plasma surgery module 2, and the radiofrequency ablation output interface 402 is connected to the tumor ablation module 3. The main control module 1 controls the output of the plasma surgery module 2 and the tumor ablation module 3.

[0036] The plasma surgery module 2 is an independent function module. It can be switched and adjusted through serial ports, analog signals, etc. It is an electrosurgical device that uses the heat energy and discharge generated by high-frequency current with a frequency greater than 200KHz acting on the human body in a loop to cut and stop bleeding. It is a delicate, low-temperature, and less traumatic surgical operation.

[0037] Tumor ablation module 3 is a module with independent functions. It can be switched and adjusted through serial ports, analog signals, etc. It uses the working principle of alternating current with a frequency range within the radio frequency range (460kHz~500kHz), rather than true radio frequency. In the process of current transmission to the ground plate, the ion components in the tissue around the electrode needle are activated, friction heat is generated, and it is conducted to the surrounding tissue to cause a thermal ablation effect, while the electrode needle itself does not generate heat. The ion vibration and the subsequent heat energy are directly related to the intensity and duration of the alternating current. The heat energy makes the tissue dry, which then causes coagulative necrosis.

[0038] In this embodiment, a surgical blade 6 is also included. The surgical blade 6 includes a plasma blade and a pedal 10 interface 403. The plasma output interface 401 is connected to the plasma blade, and the radio frequency ablation output interface 402 is connected to the ablation needle.

[0039] In detail, in this embodiment, the tumor ablation module 3 further includes a peristaltic pump 7, through which cold saline injection or cold water cooling circulation is achieved in the ablation needle.

[0040] In detail, in this embodiment, a human-machine interface 8 is also included, which is arranged on the housing 5 and connected to the peristaltic pump 7 through the main control module 1. The display screen adopts a 10-inch LCD capacitive touch screen, which can control the power level adjustment, working mode setting, voice and volume control of each functional blade; the flow rate can be adjusted through the human-machine interface 8, and cold saline injection or cold water circulation can be performed in the surgical blade.

[0041] Embodiment 2

[0042] Based on the same concept as the first embodiment, the tumor ablation module 3 of the plasma low-temperature tumor ablation device further includes

[0043] The nerve stimulation module is used to find the focal nerve concentration through a certain low-frequency rectangular wave before the formal radio frequency output, thereby stimulating the motor nerve;

[0044] The mode setting module includes fixed mode, power mode, automatic mode and temperature mode. The fixed mode outputs the set power value; the power mode outputs the power curve according to the real-time impedance to achieve different power values ​​for different impedances; the automatic mode is based on the power mode, and the automatic control algorithm can accept repeated treatments to ensure that the impedance of the lesion does not rise too quickly and to prevent carbonization of the lesion.

[0045] Embodiment 3

[0046] Reference Figure 1Based on the same concept as the above-mentioned embodiment 1, the plasma surgery module 2 and the tumor ablation module 3 of the plasma low-temperature tumor ablation device both include a temperature detection module 9. The temperature detection module 9 of the plasma surgery module 2 is used to detect the temperature of the plasma blade in real time, and the temperature detection module 9 of the radiofrequency ablation module 3 is used to detect the temperature of the ablation needle in real time.

[0047] The main control module 1 is also connected to an overvoltage detection module and an overcurrent detection module.

[0048] Embodiment 4

[0049] Based on the same concept as the first embodiment, the plasma low-temperature tumor ablation device also includes a foot pedal 10, the foot pedal 10 includes an electrocuting foot pedal 10 and an electrocoagulation foot pedal 10, the foot pedal 10 includes a Bluetooth controller and a foot pedal 10 connection terminal, the main control module 1 controls the foot pedal 10 wirelessly through the Bluetooth controller, the housing 5 is provided with a foot pedal 10 interface 403, and the main control module 1 controls the foot pedal 10 in a wired manner through the foot pedal 10 connection terminal. The foot pedal 10 integrates wired and wireless functions. Generally, the wired mode is used. The use of the wired mode is also the process of charging the built-in battery of the foot pedal. When the distance, angle, or doctor has a need. It is recommended to use the wireless mode of the foot pedal.

[0050] Wherein, the chassis of the pedal 10 is also provided with a suction cup claw. When the pedal 10 is stepped on for the first time, the pedal 10 can be firmly adsorbed on the ground, which is of course also related to the roughness of the ground.

[0051] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plasma low-temperature tumor ablation device, characterized in that: It comprises a main control module (1), a plasma surgery module (2) and a radiofrequency ablation module (3), wherein the main control module (1), the plasma surgery module (2) and the radiofrequency ablation module (3) are integrated in a housing (5).

2. The plasma low-temperature tumor ablation device according to claim 1, characterized in that: The housing (5) is provided with an output module (4), the output module (4) comprising a plasma output interface (401) and a radiofrequency ablation output interface (402), the plasma output interface (401) being connected to the plasma surgery module (2), the radiofrequency ablation output interface (402) being connected to the radiofrequency ablation module (3), and the main control module (1) controlling the output of the plasma surgery module (2) and the radiofrequency ablation module (3).

3. The plasma low-temperature tumor ablation device according to claim 1, characterized in that: It also includes a surgical blade head (6), the surgical blade head (6) including a plasma blade head and a pedal (10) interface (403), the plasma output interface (401) is connected to the plasma blade head, and the radiofrequency ablation output interface (402) is connected to the ablation needle.

4. The plasma low-temperature tumor ablation device according to claim 1, characterized in that: The radiofrequency ablation module (3) further comprises a peristaltic pump (7), through which cold saline injection or cold water cooling circulation is achieved in the ablation needle.

5. The plasma low-temperature tumor ablation device according to claim 4, characterized in that: It also includes a human-machine interaction interface (8) arranged on the housing (5), and the human-machine interaction interface (8) is connected to the peristaltic pump (7) through the main control module (1).

6. The plasma low-temperature tumor ablation device according to claim 4, characterized in that: The radiofrequency ablation module (3) also includes The nerve stimulation module is used to find the focal nerve concentration through a certain low-frequency rectangular wave before the formal radio frequency output, thereby stimulating the motor nerve; The mode setting module includes fixed mode, power mode, automatic mode and temperature mode. The fixed mode outputs the set power value; the power mode outputs the power curve according to the real-time impedance to achieve different power values ​​for different impedances; the automatic mode is based on the power mode, and the automatic control algorithm can accept repeated treatments.

7. The plasma low-temperature tumor ablation device according to claim 1, characterized in that: The plasma surgery module (2) and the radiofrequency ablation module (3) both comprise a temperature detection module (9); the temperature detection module (9) of the plasma surgery module (2) is used to detect the temperature of the plasma blade in real time, and the temperature detection module (9) of the radiofrequency ablation module (3) is used to detect the temperature of the ablation needle in real time.

8. A plasma low-temperature tumor ablation device according to any one of claims 1 to 7, characterized in that: It also includes a foot pedal (10), the foot pedal (10) includes an electrocuting foot pedal (10) and an electrocoagulation foot pedal (10), the foot pedal (10) internally includes a Bluetooth controller and a foot pedal (10) connection terminal, the main control module (1) controls the foot pedal (10) in a wireless manner via the Bluetooth controller, the housing (5) is provided with a foot pedal (10) interface (403), and the main control module (1) controls the foot pedal (10) in a wired manner via the foot pedal (10) connection terminal.

9. The plasma low-temperature tumor ablation device according to claim 8, characterized in that: The pedal (10) chassis is also provided with a suction cup claw.

10. The plasma low-temperature tumor ablation device according to claim 1, characterized in that: The main control module (1) is also connected to an overvoltage detection module and an overcurrent detection module.

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