High-frequency and low-temperature plasma multifunctional operation electrode

Abstract

The utility model discloses a high frequency and low temperature plasma multi-functional operation electrode, including: electrode group, external support tube, telescopic handle subassembly and circuit unit, the electrode group includes first electrode group and second electrode group that have the same structure, first electrode group includes first electrode tip, first electrode tip wire, second electrode tip and second electrode tip wire, the first electrode tip is connected with a first electrode tip wire; the second electrode tip is connected with a second electrode tip wire; the second electrode group comprises a third electrode tip and a fourth electrode tip, the outer side of an electrode tip wire of the electrode group is sleeved with an outer supporting tube, the outer supporting tube is connected with one end of a telescopic handle assembly through an outer supporting tube assembly, and the other end of the telescopic handle assembly is connected with a circuit unit; the electrode assembly sequentially penetrates through the outer supporting pipe assembly and the telescopic handle assembly to be electrically connected with the circuit unit, the circuit unit comprises a cable and a power plug connected with the cable, the cable is connected with a wire clamping head, and the cable is sleeved with a rear end locking piece located between the wire clamping head and the power plug.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical instruments, especially relates to a high frequency and low temperature plasma multifunctional surgical electrode. BACKGROUND

[0002] At present, the two separated operation modes of using radio frequency electrode for coagulation and using plasma electrode for ablation are generally adopted under endoscope, and the radio frequency electrode and the plasma electrode still need to be used with different electrosurgical devices, for example, the low temperature plasma device can only support the plasma electrode for body surface ablation, and the radio frequency device can only support the small power electrode for coagulation operation.Although there are many so-called "radio frequency plasma electrodes", the electrodes still need to be replaced between different electrodes, that is, the radio frequency electrode and the plasma electrode, and the frequent replacement of the electrodes not only prolongs the operation time, but also increases the treatment cost of the patient.

[0003] The electrode products on the market currently, the electrode head is often two symmetrical bean-shaped electrode heads with a small gap isolation in the middle, and such electrode is only suitable for small range coagulation and ablation, and is still limited in clinical application; since the bean-shaped electrode head can only generate small energy current, the small current has narrow action surface and shallow action depth on the operation site during hemostasis and ablation, which further prolongs the operation time and increases the pain of the patient; however, when the electrode releases large energy, on the one hand, the isolation insulating layer between the two electrodes will be broken down, the ionization layer cannot be generated, and the function of plasma ablation cannot be realized, and the electrode will be short-circuited due to the failure of energy release and too large energy, and even cause the harm of falling into the human body; on the other hand, the high temperature generated by the electrode head will not only adhere to the biological tissue, but also cause the side effects of tissue damage due to tissue necrosis and degradation after operation.

[0004] Therefore, the radio frequency plasma electrode still needs to be improved in aspects of controlling low temperature operation environment, simplifying the conversion between radio frequency and plasma, expanding the number of levels on the same electrode, and adapting the electrode to the device. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects of the prior art, and provides a high frequency and low temperature plasma multifunctional surgical electrode, which uses two electrodes, that is, a four-core electrode in parallel to increase the area, and realizes the characteristics of switching output high frequency and plasma exchange mode.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model provides a high frequency and low temperature plasma multifunctional operation electrode, including: electrode group 1, outer support pipe 2, telescopic handle assembly and circuit unit 4, the electrode group 1 includes the first electrode group and the second electrode group of same structure, the first electrode group includes first electrode head, first electrode head silk, second electrode head and second electrode head silk, and the first electrode head is connected first electrode head silk, and the second electrode head is connected second electrode head silk, and the second electrode group includes third electrode head, third electrode head silk fourth electrode head and fourth electrode head silk, and the electrode head silk outside electrode group is sleeved with outer support pipe, and the outer support pipe is connected with telescopic handle assembly one end through outer support pipe assembly, and the other end of telescopic handle assembly is connected with circuit unit 4, and electrode group passes through outer support pipe assembly, telescopic handle assembly and circuit unit 4 electric connection in turn, and the circuit unit 4 includes cable 41 and cable line connected power plug 42, and cable 41 is connected with wire clamp head 13, and cable 41 is sleeved with rear end locking piece 14 between wire clamp head and power plug.

[0008] Preferably, the outer support pipe assembly includes a front end locking piece 8 sleeved on the outer support pipe, a plastic clamp 10 and a front end stopper 11, and the front end locking piece 8 is installed and fixed with a front end plug 9 of the front end locking piece.

[0009] Preferably, the telescopic handle assembly includes a telescopic handle, one end of the telescopic handle 3 is detachably connected with a front guide sleeve 5 through a handle fixing pin, the other end of the telescopic handle 3 is fixed on a rear guide column 6, the front guide sleeve 5 is detachably connected with the outer support pipe assembly and the outer support pipe, a spring 7 sleeved with electrode wires is installed in the front guide sleeve 5, the rear guide column 6 is detachably connected with the circuit unit 4, the front guide sleeve 5 is slidingly connected on the rear guide column 6, the telescopic handle 3 drives the front guide sleeve 5 to extend or retract the rear guide column 6, controls the switching of electrode connection, and the front guide sleeve 5 is threadedly connected with the front end locking piece 8.

[0010] Preferably, the front end locking piece 8 is clamped between the outer support pipe and the front guide sleeve, the plastic clamp 10 and the front end stopper 11 are installed between the front end locking piece 8 and the front guide sleeve 5, and the inner cavity of the front end locking piece 8 is adjacent to the front end stopper 11.

[0011] Preferably, the rear guide column 6 is fixed with a tail part 12, the tail part 12 is fixed with a wire clamp head 13 penetrating through the cable line, and the rear guide column 6 moves relatively in the front guide sleeve 5.

[0012] Preferably, the outer support pipe is sleeved on the outside of an inner pipe, the outer support pipe is a hollow cylindrical structure, the outer support pipe includes a heat shrink tube 22 and a stainless steel tube 21 sleeved in the heat shrink tube, the stainless steel tube is a flat round tube, and the inner pipe is a four-cavity tube.

[0013] Preferably, the first electrode head and the second electrode head are symmetrically distributed up and down, and the third electrode head and the fourth electrode head are symmetrically distributed up and down; the first electrode group and the second electrode group are arranged in parallel and inserted into the outer support tube, and the first electrode group and the second electrode group are isolated by an insulating layer.

[0014] Preferably, the first electrode group, the second electrode group and the outer support tube form an electrode assembly, and the electrode assembly is connected with a corresponding cable.

[0015] Preferably, the first electrode group and the second electrode group form a high-frequency loop, and form a blood coagulation function when a high-frequency current is input; when a high-frequency current is output, the two pairs of electrodes generate high-frequency electromagnetic waves to coagulate blood of tissues close to the intervertebral disc.

[0016] Preferably, the first electrode head, the second electrode head, the third electrode head and the fourth electrode head are connected in parallel to form an electrode, and the outer support tube with the insulating tube is used as another electrode for transmitting plasma function, thereby forming a plasma loop.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The surgical electrode device integrates the plasma electrode and the high-frequency ablation electrode into one device. The plasma electrode is more rapid in ablation, and the high-frequency electrode is used for hemostasis in the last link of the operation. The surgical electrode device can freely switch between the high-frequency bipolar blood coagulation mode and the plasma bipolar ablation mode, so that the doctor can select different modes according to needs during the operation, complete different operations, and meet the operation requirements of multiple departments (such as the orthopedics department, the ear-nose-throat department, the head and neck department, the gynecology department and the pain department). The integrated surgical electrode device integrates multiple devices into one, has a small footprint and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic view of a multifunctional surgical electrode with high-frequency and low-temperature plasma according to the utility model;

[0020] Figure 2 FIG. 2 is an electrode head connection schematic view of the multifunctional surgical electrode with high-frequency and low-temperature plasma according to the utility model;

[0021] Figure 3 FIG. 3 is an electrode head connection perspective view of the multifunctional surgical electrode with high-frequency and low-temperature plasma according to the utility model;

[0022] Figure 4 FIG. 4 is a telescopic handle assembly schematic view of the multifunctional surgical electrode with high-frequency and low-temperature plasma according to the utility model;

[0023] Figure 5The utility model discloses a high frequency and low temperature plasma multifunctional surgical electrode electrode head structure schematic diagram.

[0024] Figure 6 The utility model discloses a high frequency and low temperature plasma multifunctional surgical electrode power plug structure perspective view.

[0025] Figure 7 The utility model discloses a high frequency and low temperature plasma multifunctional surgical electrode power plug structure front view.

[0026] Figure 8 The utility model discloses a high frequency and low temperature plasma multifunctional surgical electrode power plug structure side view. DETAILED DESCRIPTION

[0027] In order to better illustrate the utility model, below in conjunction with the drawing carries out the detailed description.

[0028] Embodiment one

[0029] The utility model provides a high frequency and low temperature plasma multifunctional surgical electrode, as shown in Figure 1 、 Figure 2 Shown, including: electrode group 1, outer support pipe 2, telescopic handle assembly and circuit unit 4, electrode group 1 includes the first electrode group and second electrode group of same structure, and the first electrode group includes first electrode head 101, first electrode head silk 102, second electrode head and second electrode head silk, and first electrode head 101 is connected first electrode head silk 102, and second electrode head is connected second electrode head silk, and the second electrode group includes third electrode head, third electrode head silk, fourth electrode head and fourth electrode head silk, and third electrode head is connected third electrode head silk, and fourth electrode head is connected fourth electrode head silk, and the electrode head silk outside of electrode group is sleeved with outer support pipe, and outer support pipe is connected with telescopic handle assembly one end through outer support pipe assembly, and telescopic handle assembly other end is connected with circuit unit 4, and electrode group passes through outer support pipe assembly, telescopic handle assembly and circuit unit 4 electric connection in proper order, and circuit unit 4 is used to provide electric signal for electrode group, including cable 41 and power plug 42 connected with cable, and cable 41 is connected with wire clamp head 13, and cable is sleeved with rear end locking piece 14 between wire clamp head 13 and power plug 42.The electrode head silk is zigzag in particular. The wire clamp head 13 is locked by the rear end locking piece 14, and the rear end locking piece 14 and the telescopic handle are detachably connected, and the telescopic handle is locked and fixed.

[0030] The multifunctional electrode device has the functions of plasma output radio frequency ablation and high frequency current output coagulation system, and uses a pedal to switch the two different output modes together. The electrode device integrates a high frequency module and a plasma module, and outputs two different electric energy through software switching control on a bipolar electrode to meet the needs of clinical medicine. At present, the electrode is essential for UBE surgery and intervertebral disc ablation surgery in bone spine surgery, and is a bipolar electrode for high frequency coagulation and intervertebral disc external plasma ablation. It outputs plasma function and high frequency current. Figure 6 The actual output is that a cable 41 is connected to the electrode assembly, the cable 41 is a three-core parallel cable, and switching is performed through a five-pin output power plug 42. Figure 7 、 Figure 8 The power plug 42 includes a plug handle 43, a plug front cover 44 connected to the plug handle, a first plug pin 45, a second plug pin 46, a metal film resistor 47 welded to the second plug pin, and a plug pin 48 welded to a jumper wire. The first plug pin 45 is a 4.0 plug pin, the second plug pin 46 is a 2.5 plug pin, and the first plug pin and the second plug pin are both made of copper plated tin. The number of metal film resistors 47 is two, and the specifications are 1 / 4W, 1.6KΩ and 1 / 4W, 2.4KΩ; the three-core parallel cable is a PVC wire, and the power plug is a five-pin output power plug. The five-pin output power plug is connected to the PRF300 device, which is made of beryllium copper and can switch between plasma and high frequency modes.

[0031] Preferably, the outer support tube assembly includes a front end locking piece 8 sleeved on the outer support tube, a plastic clamp 10, and a front end stopper 11. The front end locking piece 8 is installed and fixed with a front end plug 9 of the front end locking piece. The inner diameter of the front end plug 9 matches the outer diameter of the outer support tube, and the front end locking piece 8 is threadedly connected with the front guide sleeve 5.

[0032] Preferably, as shown in Figure 4 , the telescopic handle assembly includes a telescopic handle. One end of the telescopic handle 3 is detachably connected with the front guide sleeve 5 through a handle fixing pin 16, and the other end of the telescopic handle 3 is fixedly connected to the rear guide column 6. The front guide sleeve 5 is detachably connected with the outer support tube assembly and the outer support tube, and the front guide sleeve 5 is internally installed with a compression spring 7 sleeved with an electrode wire. The rear guide column 6 and the circuit unit 4 are detachably connected. The front guide sleeve 5 is slidingly connected to the rear guide column 6. The telescopic handle 3 drives the front guide sleeve 5 to extend or retract the rear guide column 6 to control the switching of the electrode connection. The rear guide column and the rear end locking piece are detachably connected to define the circuit unit.

[0033] Preferably, the front guide sleeve 5 is provided with a stroke fixing pin 15 for limiting the relative movement distance of the rear guide column and the front guide sleeve. The telescopic handle is in a u-shaped structure, which controls the extension amount of the double-lumen tube by hand. The compression spring 7 is a stainless steel 304 compression spring, which is compressed when the front guide sleeve 5 and the rear guide column 6 move relative to each other, providing a spring force.

[0034] Preferably, a plastic clamp 10 and a front stopper 11 are installed between the front end locking member 8 and the front guide sleeve 5 to fix and limit the outer support tube. The inner cavity of the front end locking member 8 is adjacent to the front stopper 11, which locks the stainless steel tube and ensures that the working end of the double-lumen inner tube can extend out of the stainless steel outer tube. The front guide sleeve and the front end locking member jointly lock the stainless steel tube, the compression spring is placed inside the front guide sleeve, and the relative movement of the front part of the rear guide column is completed in the front guide sleeve 5. The front stopper cooperates with the plastic clamp and the front guide sleeve to jointly complete the locking of the stainless steel outer tube and limit the expanded stainless steel outer tube. The plastic clamp 10 matches the front end locking member to complete the locking of the stainless steel tube and limit the expanded stainless steel tube.

[0035] Preferably, the rear guide column 6 is provided with a tail part 12, which is fixed with a wire clamp 13 penetrating the cable line. The rear guide column 6 moves relative to the front guide sleeve 5 to realize the free switching of the high-frequency bipolar coagulation mode and the plasma bipolar ablation mode. The tail part 12 fixes the double-lumen inner tube to limit the movement length of the double-lumen inner tube; the tail part 12 fixes the wire between the cable line 41 and the stainless steel tube.

[0036] Preferably, as shown in Figure 5 The outer support tube 2 is sleeved outside the inner tube 23, which is a hollow cylindrical structure. The outer support tube 2 includes a heat shrink tube 22 and a stainless steel tube 21 sleeved inside the heat shrink tube. The electrode wire penetrates the inner tube. The inner tube 23 is a four-lumen tube made of nylon, which insulates the electrode wire from the stainless steel tube to avoid short circuit. The stainless steel tube is a flat circular tube made of AISI 304, which supports the four-lumen tube and ensures the movement of the four-lumen tube. The heat shrink tube is made of PVDF, which insulates the stainless steel tube.

[0037] Preferably, as shown in Figure 2 , Figure 3As shown, the first electrode head and the second electrode head are symmetrically arranged up and down, and the third electrode head and the fourth electrode head are symmetrically arranged up and down; the first electrode group and the second electrode group are arranged in parallel and inserted into the outer support tube, and the first electrode group and the second electrode group are isolated by an insulating layer. There are other ways for the first electrode group and the second electrode group to also adopt an inner and outer layer structure or double helix arrangement and be inserted into the outer support tube. The electrode head wire is AISI 304, the electrode head wire is connected to the electrode line, the electrode head is the working output end, the two groups of electrode heads and the electrode heads and the stainless steel outer tube can form a loop to realize high frequency and plasma two output modes respectively.

[0038] Preferably, the first electrode group, the second electrode group and the outer support tube form an electrode assembly 50, and the electrode assembly is connected with a corresponding cable line. That is, one end of the three-core cable line is connected with the outer support tube, the first electrode group and the second electrode group arranged up and down, and the other end of the three-core cable line is connected with the case through a five-pin power plug.

[0039] Preferably, the first electrode group and the second electrode group form a high-frequency loop to form a coagulation function when a high-frequency current is input; when a high-frequency current is output, the two pairs of electrodes generate high-frequency electromagnetic waves to coagulate the tissues near the intervertebral disc. The outer support tube of the insulating tube serves as a support tube for the conductor, and the electrode group is composed of four 0.8 electrode head wires, and the two electrode groups each form a high-frequency electrode loop by a pair of electrode heads and corresponding electrode head wires.

[0040] Preferably, the first electrode head, the second electrode head, the third electrode head and the fourth electrode head are connected in parallel to form an electrode, and the outer support tube sleeved with the insulating tube serves as another electrode for transmitting the plasma function to form a plasma loop to generate an ablation effect on the tissue. The first electrode group and the second electrode group are symmetrically and cross-shaped arranged. The first electrode head and the second electrode head are in a semi-cylindrical or sheet structure.

[0041] In use, the embodiment of the utility model realizes two switchable circuit connections by different devices, and corresponds to at least two working modes of electrodes. Because the voltages released by different circuits are different, the maximum currents transmitted by the high-frequency electrode head group, the first electrode line and the second electrode are different, and the transformation of the two interactive modes is to increase the area by connecting the two groups of four-core electrodes in parallel, and to output high frequency by switching. The high frequency is for coagulation; the maximum currents transmitted by the plasma electrode head group, the first electrode line and the second electrode are different, and the plasma ablation is more rapid. Therefore, the two electrode groups 1 of the utility model can realize low-temperature plasma ablation and different high-frequency output, and the adjustment control of the telescopic handle 3 is further improved and promoted to adapt to the operation application of different areas.

[0042] Although, above has used general description, specific implementation and test, has made detailed description to the utility model, can make some modification or improvement to it on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of the utility model claimed.

Claims

1. A multi-functional surgical electrode for high frequency and low temperature plasma, comprising: The electrode group (1), the outer support tube (2), the telescopic handle assembly and the circuit unit (4) are characterized in that the electrode group comprises a first electrode group and a second electrode group which are structurally identical, the first electrode group comprises a first electrode head, a first electrode head wire, a second electrode head and a second electrode head wire, the first electrode head is connected to the first electrode head wire, and the second electrode head is connected to the second electrode head wire; the second electrode group comprises a third electrode head, a third electrode head wire, a fourth electrode head and a fourth electrode head wire, the electrode head wire of the electrode group is sleeved with the outer support tube outside, the outer support tube is connected to one end of the telescopic handle assembly through the outer support tube assembly, the other end of the telescopic handle assembly is connected with the circuit unit (4), the electrode group is sequentially connected with the circuit unit (4) through the outer support tube assembly and the telescopic handle assembly, the circuit unit (4) comprises a cable (41) and a power plug (42) connected with the cable, the cable (41) is connected with a wire clamp head (13), and the cable (41) is sleeved with a rear end locking piece (14) between the wire clamp head and the power plug.

2. The multi-functional surgical electrode for high-frequency and low-temperature plasma according to claim 1, characterized by The outer support tube assembly comprises a front end locking piece (8) sleeved on the outer support tube (2), a plastic clamp (10) and a front end stopper (11), and the front end locking piece (8) is installed and fixed with a front end plug (9) of the front end locking piece.

3. The multi-functional surgical electrode for high-frequency and low-temperature plasma according to claim 1, characterized by The telescopic handle assembly comprises a telescopic handle, one end of the telescopic handle (3) is detachably connected with a front guide sleeve (5) through a handle fixing pin, the other end of the telescopic handle (3) is fixed on a rear guide column (6), the front guide sleeve (5) is detachably connected with the outer support tube assembly and the outer support tube, a spring (7) sleeved with an electrode wire is installed in the front guide sleeve (5), the rear guide column (6) is detachably connected with the circuit unit (4), the front guide sleeve (5) is slidably connected on the rear guide column (6), the telescopic handle (3) drives the front guide sleeve (5) to extend or retract the rear guide column (6), and the electrode connection is controlled and switched; the front guide sleeve (5) is threadedly connected with the front end locking piece (8).

4. The multi-functional surgical electrode for high-frequency and low-temperature plasma according to claim 3, characterized by The plastic clamp (10) and the front end stopper (11) are installed between the front end locking piece (8) and the front guide sleeve (5), and an inner cavity of the front end locking piece (8) is adjacent to the front end stopper (11).

5. The multi-functional surgical electrode for high frequency and low temperature plasma according to claim 3, wherein The rear guide column (6) is fixed with a tail part (12), the tail part (12) is fixed with a wire clamp head (13) penetrating through the cable, and the rear guide column (6) moves relatively in the front guide sleeve (5).

6. The multi-functional surgical electrode for high frequency and low temperature plasma according to claim 1, wherein The outer support tube is sleeved on the outside of an inner tube, and the outer support tube is a hollow cylindrical structure; the outer support tube comprises a heat shrink tube (22) and a stainless steel tube (21) sleeved in the heat shrink tube, the stainless steel tube is a flat circular tube, and the inner tube is a four-cavity tube.

7. The multi-functional surgical electrode for high frequency and low temperature plasma according to claim 1, wherein The first electrode head and the second electrode head are symmetrically distributed in an up-down manner, and the third electrode head and the fourth electrode head are symmetrically arranged in an up-down manner; the first electrode group and the second electrode group are arranged in parallel and inserted into the outer support tube, and an insulating layer is arranged between the first electrode group and the second electrode group.

8. The multi-functional surgical electrode for high frequency and low temperature plasma according to claim 7, wherein The first electrode group, the second electrode group and the outer support tube form an electrode assembly, and the electrode assembly is connected with a corresponding cable.

9. The multi-functional electrosurgical electrode of high frequency and cryo-ion for use in surgery according to claim 1, characterized in that, The first electrode group and the second electrode group form a high frequency loop, and when high frequency current is output, the two electrode groups generate high frequency electromagnetic waves to coagulate the tissues close to the intervertebral disc.

10. The multi-functional electrosurgical electrode of high frequency and cryoionization according to claim 1, characterized in that, The first electrode head, the second electrode head, the third electrode head and the fourth electrode head are connected in parallel to form an electrode, and the outer support tube with the insulating tube is used as another electrode for transmitting plasma function, thereby forming a plasma loop.

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