CN114343836A - Novel radio frequency electrode and manufacturing and using methods thereof - Google Patents

Novel radio frequency electrode and manufacturing and using methods thereof Download PDF

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Publication number
CN114343836A
CN114343836A CN202210134443.4A CN202210134443A CN114343836A CN 114343836 A CN114343836 A CN 114343836A CN 202210134443 A CN202210134443 A CN 202210134443A CN 114343836 A CN114343836 A CN 114343836A
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electrode
radio frequency
contact
elastic tube
electrode tip
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卢科军
李芳�
王李成
冯超
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Shaanxi Xindailu Electronic Technology Co ltd
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Shaanxi Xindailu Electronic Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/263—Bioelectric electrodes therefor characterised by the electrode materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/296—Bioelectric electrodes therefor specially adapted for particular uses for electromyography [EMG]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00434—Neural system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00714—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00839—Bioelectrical parameters, e.g. ECG, EEG
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
    • A61B2562/125—Manufacturing methods specially adapted for producing sensors for in-vivo measurements characterised by the manufacture of electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor

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Abstract

The invention discloses a novel radio-frequency electrode and a manufacturing and using method thereof, and the novel radio-frequency electrode comprises electrode tips (1), elastic tubes (2) and switching contacts (3), wherein the number of the electrode tips (1) is the same as that of the electrode tips (1), the electrode tips (1) are arranged at the head of the radio-frequency electrode, the elastic tubes (2) are connected between two adjacent electrode tips (1), the switching contacts (3) are arranged at the tail of the radio-frequency electrode, the elastic tubes (2) are connected between two adjacent switching contacts (3), and the electrode tips (1) are connected with the corresponding switching contacts (3) through electrode wires (5).

Description

Novel radio frequency electrode and manufacturing and using methods thereof
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a novel radio-frequency electrode and a manufacturing and using method thereof.
Background
The radio frequency ablation technology is mainly used for treating neuropathic pains, most of the treatments are disposable minimally invasive operations, a radio frequency electrode used for the operations is generally rigid and disposable access consumable materials, the electrode is 304 stainless steel mostly, the whole structure is rigid, and the joint is sticky mostly. At present, a treatment channel needs to be established by a puncture needle during treatment of a radio-frequency electrode, the radio-frequency electrode enters a target spot for treatment through the channel established by the puncture needle, and the puncture needle is taken out after the radio-frequency electrode is taken out after the treatment is finished. However, for the treatment of intractable pain, the symptoms of the acrosomatic sensation and the motor nerve injury caused by central nerve and peripheral nerve injuries, the long-term treatment is needed, and the steps are repeated for each treatment, so that the patient needs to be subjected to frequent puncture by a puncture needle in the whole treatment course, and more physiological trauma, mental burden and economic burden are brought to the patient; however, the existing rf electrode is generally a rigid rf electrode, as shown in fig. 8, the electrode tip and the electrode rod are made of stainless steel, the electrode tip and the electrode rod are integrally made of a rigid rod, and the rigid rod is implanted into a human body like a metal needle or a metal rod, which may cause unpredictable risk if the human body moves; in addition, the stainless steel material selected is not beneficial to long-term implantation, as shown in fig. 9, the electrode head and the rear end part are adhered by glue, and at present, glue meeting the long-term implantation requirement does not exist, so that the existing radio-frequency electrode cannot be implanted. The characteristics of how to reduce the puncture times of the patient to the greatest extent in the treatment course and making one puncture only in one treatment course are favorable for the long-term and periodic treatment of the patient.
Therefore, a novel radio frequency electrode which is flexible, implantable, good in elasticity, free of adhesion, convenient to operate and multifunctional is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a novel radio-frequency electrode and a manufacturing and using method thereof, and solves the problems that the conventional radio-frequency electrode is hard, cannot be implanted, has no elasticity, needs to be glued and is inconvenient to operate.
In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides a novel radio frequency electrode, includes electrode tip, elastic tube and switching contact, and the electrode tip is a plurality of, and the quantity of switching contact is the same with the quantity of electrode tip, a plurality of the electrode tip sets up in radio frequency electrode's head, is connected with elastic tube, a plurality of between two adjacent electrode tips the switching contact sets up in radio frequency electrode's afterbody, is connected with the elastic tube between two adjacent switching contacts, the electrode tip passes through the switching contact that electrode line connection corresponds.
Preferably, the electrode head, the elastic tube and the switching contact are all provided with hollow channels along the axial direction, and the hollow channels are used for guide wires to pass through.
Preferably, the outer diameters of the electrode tip, the elastic tube and the adapter contact are the same, and the inner diameters of the hollow passages of the electrode tip, the elastic tube and the adapter contact are also the same.
Preferably, the elastic tube is a double-layer annular tube body, the elastic tube comprises an inner tube and an outer tube, the inner tube is sleeved in the outer tube, the outer diameter of the outer tube of the elastic tube is the same as the outer diameter of the electrode tip, the inner diameter of the inner tube of the elastic tube is the same as the inner diameter of the hollow channel of the electrode tip, and the electrode wire penetrates through an annular space between the inner tube and the outer tube of the elastic tube to connect the electrode tip and the switching contact.
Preferably, a temperature sensor is arranged in the elastic tube close to one side of the head of the radio-frequency electrode, the temperature sensor is arranged in an annular space between the inner tube and the outer tube of the elastic tube, and the temperature sensor is connected with the switching contact through an electrode wire.
Preferably, a first electrode tip, a second electrode tip, a third electrode tip, … … and an nth electrode tip are arranged along the direction from the head part to the tail part of the radio frequency electrode, wherein the second electrode tip, the third electrode tip, … … and the nth electrode tip are provided with through holes along the direction from the head part to the tail part of the radio frequency electrode, and the through holes are used for electrode wires to pass through.
Preferably, the adapter contact is externally connected with the radio frequency therapeutic apparatus through an adapter plug.
Preferably, the end of the electrode tip or the switching contact connected with the elastic tube is provided with a convex step, the outer wall of the convex step is provided with a groove along the circumferential direction, the end of the elastic tube connected with the electrode tip or the switching contact is provided with an inner concave step, the convex step is matched with the inner concave step, when the electrode tip or the switching contact is connected with the elastic tube, the convex step and the inner concave step are firstly matched, and then the hot pressing process is adopted for crimping.
Preferably, a method for manufacturing the novel radio-frequency electrode comprises the following steps:
step 1: selectively manufacturing a single-contact electrode, a double-contact electrode or a multi-contact electrode, wherein the single-contact electrode comprises an electrode tip, a switching contact and two elastic tubes, the double-contact electrode comprises two electrode tips, two switching contacts and four elastic tubes, and the multi-contact electrode comprises n electrode tips, n switching contacts and 2n elastic tubes;
step 2: the electrode tip, the elastic tube and the switching contact are butted in sequence, hot pressing process crimping is carried out on the butted position in sequence, the electrode tip or the switching contact is heated at first, and meanwhile, the butted position of the elastic tube is pressurized, so that physical connection with connection strength and sealing is realized.
Preferably, the use method of the novel radio-frequency electrode comprises the following steps:
step 1: selecting a single-contact electrode, a double-contact electrode or a multi-contact electrode according to the disease condition of a patient;
step 2: puncturing by using a puncture needle, then penetrating the selected radio-frequency electrode into the puncture needle, leaving the tail part of the radio-frequency electrode outside the patient body, and then taking out the puncture needle to leave the radio-frequency electrode inside the patient body;
and step 3: the switching contact at the tail part of the radio frequency electrode is connected with the radio frequency therapeutic apparatus through the switching plug, and radio frequency current is input through the radio frequency therapeutic apparatus and acts on the affected part in the body of a patient at different electrode tips for treatment.
Compared with the prior art, the invention has the advantages that:
(1) the invention discloses a novel radio-frequency electrode, which is used for matching with a radio-frequency pulse regulation and control technology to treat intractable pain, limb somatosensory caused by central nerve and peripheral nerve injury and motor nerve injury;
(2) the end of the radio frequency electrode connected with the electrode tip or the switching contact and the elastic tube is provided with an outward convex step, the outer wall of the outward convex step is provided with a groove along the circumferential direction, the end of the elastic tube connected with the electrode tip or the switching contact is provided with an inward concave step, the outward convex step is matched with the inward concave step, when the electrode tip or the switching contact is connected with the elastic tube, the outward convex step is matched with the inward concave step, and then the outward convex step and the inward concave step are pressed and connected by adopting a hot pressing process, so that certain connection strength and sealed physical connection between the outward convex step and the inward concave step are realized;
(3) the electrode tip is made of titanium alloy, has biocompatibility and corrosion resistance, and can be implanted into a human body for a long time;
(4) the elastic tube is made of a hose material which has insulating property and can be implanted for a long time, and the elastic tube is used as the electrode body, so that the electrode has good stability after being implanted into a target point and is not easy to deviate along with the movement of a human body due to certain elasticity;
(5) the whole external diameter of the radio-frequency electrode is the same and is smaller, and the puncture needle can be taken out before treatment, so that the radio-frequency electrode is implanted into a patient body for a long time.
Drawings
FIG. 1 is a schematic structural diagram of a novel RF electrode of the present invention;
FIG. 2 is a schematic diagram illustrating a hot-pressing process of the novel RF electrode according to the present invention;
FIG. 3 is a schematic cross-sectional view of a single-contact electrode of a novel RF electrode of the present invention;
FIG. 4 is a schematic view of a single-contact electrode of the novel RF electrode according to the present invention;
fig. 5 is a schematic view of a dual-contact electrode of the novel rf electrode according to the present invention.
FIG. 6 is a schematic cross-sectional view of a multi-contact electrode of a novel RF electrode of the present invention;
FIG. 7 is a schematic view of a multi-contact electrode of the novel RF electrode of the present invention;
FIG. 8 is a schematic diagram of a prior art rigid RF electrode structure;
FIG. 9 is a schematic diagram of a prior art hard RF electrode bonding process.
Description of reference numerals:
1. the electrode comprises an electrode tip, 2, an elastic tube, 3, a switching contact, 4, a hollow channel, 5, an electrode wire, 6, a temperature sensor, 7, an outer convex step, 8, an inner concave step, 9, an electrode rod, 10, a handle, 11, a cable, 12 and a connector;
7-1 and a groove.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The basic idea of the novel radio-frequency electrode is to adopt a long-term implanted material, a soft structure and an elastic component for design.
Example 1
As shown in fig. 1, the invention discloses a novel radio frequency electrode, which comprises electrode tips 1, elastic tubes 2 and switching contacts 3, wherein the number of the electrode tips 1 is the same as that of the electrode tips 1, the electrode tips 1 are arranged at the head of the radio frequency electrode, the elastic tubes 2 are connected between two adjacent electrode tips 1, the switching contacts 3 are arranged at the tail of the radio frequency electrode, the elastic tubes 2 are connected between two adjacent switching contacts 3, and the electrode tips 1 are connected with the corresponding switching contacts 3 through electrode wires 5.
Example 2
As shown in fig. 1, 3 and 6, the electrode head 1, the elastic tube 2 and the adapter contact 3 are preferably provided with hollow channels 4 along the axial direction, and the hollow channels 4 are used for guide wires to pass through.
The hollow channel 4 is used as a medicine injection channel during treatment and used for placing a guide wire during electrode implantation to enhance the integral rigidity of the radio-frequency electrode, so that the electrode is conveniently implanted, and the guide wire is drawn out after the electrode is implanted.
As shown in fig. 1, 3 and 6, the outer diameters of the electrode head 1, the elastic tube 2 and the adapter contact 3 are the same, and the inner diameters of the hollow passages 4 of the electrode head 1, the elastic tube 2 and the adapter contact 3 are also the same.
The electrode head 1 is made of titanium alloy, has biocompatibility and corrosion resistance, and can be implanted into a human body for a long time; the electrode tip 1 is used for leading radio frequency current into human tissues for treatment; and the other is used as an electrode for detecting the bioelectrical information of the nerve of the human tissue.
The radiofrequency electrode without the hollow channel 4 belongs to the products that can be derived and also belongs to the protection scope of the present invention.
Example 3
As shown in fig. 1, 3 and 6, preferably, the elastic tube 2 is a double-layer annular tube body, the elastic tube 2 includes an inner tube and an outer tube, the inner tube is sleeved in the outer tube, the outer diameter of the outer tube of the elastic tube 2 is the same as the outer diameter of the electrode tip 1, the inner diameter of the inner tube of the elastic tube 2 is the same as the inner diameter of the hollow channel 4 of the electrode tip 1, and the electrode wire 5 passes through an annular space between the inner tube and the outer tube of the elastic tube 2 to connect the electrode tip 1 and the transfer contact 3.
The elastic tube 2 is made of a hose material (such as TPU and Pebax) which has insulating property and can be implanted for a long time, and the elastic tube 2 is used as an electrode body, so that the electrode has good stability after being implanted into a target point due to certain elasticity, and is not easy to deviate along with the movement of a human body.
Example 4
As shown in fig. 1, 3 and 6, preferably, a temperature sensor 6 is arranged in the elastic tube 2 near one side of the head of the radio frequency electrode, the temperature sensor 6 is arranged in an annular space between an inner tube and an outer tube of the elastic tube 2, and the temperature sensor 6 is connected with the transfer contact 3 through an electrode wire 5.
The temperature sensor 6 is used for measuring the temperature of the target point during treatment, and the output energy is adjusted through the temperature radio frequency therapeutic apparatus, so that the temperature of the target point is kept at the temperature set by a doctor, and the optimal treatment effect and safety are achieved.
The electrode wire 5 is used for guiding the radio frequency current output by the radio frequency therapeutic apparatus to the electrode head 1.
Preferably, a first electrode tip, a second electrode tip, a third electrode tip, … … and an nth electrode tip are arranged along the head-to-tail direction of the radio frequency electrode, wherein the second electrode tip, the third electrode tip, … … and the nth electrode tip are provided with through holes along the head-to-tail direction of the radio frequency electrode, and the through holes are used for the electrode wire 5 to pass through.
The through holes are used for the electrode wires 5 to penetrate through, so that the electrode wires 5 pass through the inside of the radio-frequency electrode, and the using effect and the overall appearance quality of the radio-frequency electrode are improved.
Preferably, the adapter contact 3 is externally connected with a radio frequency therapeutic apparatus through an adapter plug.
The function of the changeover contact 3 is to connect with a radio frequency therapeutic apparatus through a changeover plug during treatment and input radio frequency current.
Example 5
As shown in fig. 2, preferably, an outer convex step 7 is arranged at one end of the electrode tip 1 or the adapting contact 3 connected to the elastic tube 2, a groove 7-1 is circumferentially arranged on the outer wall of the outer convex step 7, an inner concave step 8 is arranged at one end of the elastic tube 2 connected to the electrode tip 1 or the adapting contact 3, wherein the outer convex step 7 is matched with the inner concave step 8, when the electrode tip 1 or the adapting contact 3 is connected to the elastic tube 2, the outer convex step 7 is matched with the inner concave step 8, and then a hot pressing process is adopted for compression joint.
The electrode tip 1 and the switching contact 3 are made of metal, and the elastic tube 2 is made of nonmetal.
As shown in fig. 2, a proper feature (which is not limited to the outer convex step 7 and the inner concave step 8 described in the present invention) is processed at the metal and non-metal connecting portions, and the metal portion is pressed while being heated properly, so that the non-metal deformation at the connecting overlapping portion is embedded in the metal feature, thereby achieving a certain connecting strength and a sealed physical connection between the two.
Example 6
Preferably, a method for manufacturing the novel radio-frequency electrode comprises the following steps:
step 1: selecting and manufacturing a single-contact electrode, a double-contact electrode or a multi-contact electrode;
as shown in fig. 3 and 4, which are schematic structural diagrams of a single-contact electrode, the single-contact electrode comprises an electrode head 1, an adapter contact 3 and two elastic tubes 2;
as shown in fig. 1 and 5, which are schematic structural diagrams of a dual-contact electrode, the dual-contact electrode includes two electrode tips 1, two adapter contacts 3 and four elastic tubes 2;
as shown in fig. 6 and 7, the structure of the multi-contact electrode is schematically illustrated, and the multi-contact electrode includes n electrode tips 1, n relay contacts 3, and 2n elastic tubes 2;
step 2: as shown in fig. 2, the electrode tip 1, the elastic tube 2 and the adapter contact 3 are sequentially butted, and the butted portion is sequentially subjected to hot pressing, and the electrode tip 1 or the adapter contact 3 is heated and the butted portion of the elastic tube 2 is pressurized, so that physical connection with connection strength and sealing is realized.
Example 7
Preferably, the use method of the novel radio-frequency electrode comprises the following steps:
step 1: selecting a single-contact electrode, a double-contact electrode or a multi-contact electrode according to the disease condition of a patient;
step 2: puncture by a puncture needle, and then penetrate the selected radio-frequency electrode into the puncture needle (before penetrating into the puncture needle, a guide wire can be penetrated into a hollow channel 4 of the radio-frequency electrode, so that the rigidity of the radio-frequency electrode is increased, the radio-frequency electrode is conveniently implanted, the guide wire is drawn out after the radio-frequency electrode is implanted), the tail part of the radio-frequency electrode is left outside the patient body, and then the puncture needle is taken out, so that the radio-frequency electrode is left inside the patient body;
and step 3: the switching contact 3 at the tail part of the radio frequency electrode is connected with the radio frequency therapeutic apparatus through the switching plug, and radio frequency current is input through the radio frequency therapeutic apparatus to act on the affected part in the body of a patient at different electrode tips 1 for treatment.
As shown in fig. 8, the existing electrode comprises an electrode head 1, an electrode rod 9, a handle 10, a cable 11 and a connector 12, the handle 10 of the existing electrode is large, and after treatment is finished, the electrode can be taken out firstly, and then the puncture needle can be taken out; the whole external diameter of the radio-frequency electrode is the same and is smaller, and the puncture needle can be taken out, so that the radio-frequency electrode is implanted into a patient body for a long time.
The working principle of the invention is as follows:
as shown in figures 1-2, the invention provides a novel radio frequency electrode, which comprises electrode tips 1, elastic tubes 2 and transfer contacts 3, wherein the number of the electrode tips 1 is the same as that of the electrode tips 3, the electrode tips 1 are arranged at the head of the radio frequency electrode, the elastic tubes 2 are connected between two adjacent electrode tips 1, the transfer contacts 3 are arranged at the tail of the radio frequency electrode, the elastic tubes 2 are connected between two adjacent transfer contacts 3, the joint is pressed and connected by adopting a hot pressing process, an electrode wire 5 passes through the elastic tubes 2 or the electrode tips 1 to enable the corresponding electrode tips 1 to be connected with the transfer contacts 3, the transfer contacts 3 are externally connected with a radio frequency therapeutic apparatus through transfer plugs, the elastic tubes 2 have insulating property and flexibility, the radio frequency electrode can be flexible and elastic, and the electrode tips 1 are titanium alloy, the elastic tube 2 is a hose material which can be implanted for a long time and can be implanted for a long time, the joint of the metal and the nonmetal adopts a hot pressing process for crimping, does not need gluing, is convenient to manufacture and can be implanted into the body of a patient for a long time.
The invention discloses a novel radio-frequency electrode, which is used for matching with a radio-frequency pulse regulation and control technology to treat intractable pain, limb somatosensory caused by central nerve and peripheral nerve injury and motor nerve injury.
The invention relates to a radio frequency electrode, which is characterized in that an outer convex step is arranged at one end of an electrode tip or a switching contact of the radio frequency electrode, which is connected with an elastic tube, a groove is arranged on the outer wall of the outer convex step along the circumferential direction, an inner concave step is arranged at one end of the elastic tube, which is connected with the electrode tip or the switching contact, wherein the outer convex step is matched with the inner concave step, and when the electrode tip or the switching contact is connected with the elastic tube, the outer convex step is matched with the inner concave step, and then hot pressing technology is adopted for compression joint, so that certain connection strength and sealed physical connection of the outer convex step and the inner concave step are realized.
The electrode tip is made of titanium alloy, has biocompatibility and corrosion resistance, and can be implanted into a human body for a long time.
The elastic tube is made of a hose material which has insulating property and can be implanted for a long time, and the elastic tube is used as the electrode body, so that the electrode has good stability after being implanted into a target point and is not easy to deviate along with the movement of a human body due to certain elasticity.
The whole external diameter of the radio-frequency electrode is the same and is smaller, and the puncture needle can be taken out before treatment, so that the radio-frequency electrode is implanted into a patient body for a long time.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims (10)

1. A novel radio frequency electrode is characterized in that: including electrode tip (1), elastic tube (2) and switching contact (3), electrode tip (1) is a plurality of, and the quantity of switching contact (3) is the same with the quantity of electrode tip (1), a plurality of electrode tip (1) sets up in the head of radio frequency electrode, is connected with elastic tube (2) between two adjacent electrode tips (1), a plurality of switching contact (3) set up in the afterbody of radio frequency electrode, are connected with elastic tube (2) between two adjacent switching contacts (3), corresponding switching contact (3) are connected through electrode line (5) in electrode tip (1).
2. The novel radio frequency electrode of claim 1, wherein: the electrode tip (1), the elastic tube (2) and the switching contact (3) are all provided with hollow channels (4) along the axial direction, and the hollow channels (4) are used for guide wires to pass through.
3. The novel radio frequency electrode of claim 2, wherein: the outer diameters of the electrode tip (1), the elastic tube (2) and the switching contact (3) are the same, and the inner diameters of the hollow channels (4) of the electrode tip (1), the elastic tube (2) and the switching contact (3) are also the same.
4. The novel radio frequency electrode of claim 2, wherein: elastic tube (2) are double-deck cyclic annular body, and elastic tube (2) include inner tube and outer tube, and the inner tube suit is in the outer tube, and the outer tube external diameter of elastic tube (2) is the same with the external diameter of electrode tip (1), and the inner tube internal diameter of elastic tube (2) is the same with hollow channel (4) internal diameter of electrode tip (1), electrode line (5) are passed from the annular space between the inner tube of elastic tube (2) and the outer tube and are connected electrode tip (1) and switching contact (3).
5. The novel radio frequency electrode as claimed in claim 4, wherein: be close to radio frequency electrode head one side be provided with temperature sensor (6) in elastic tube (2), temperature sensor (6) set up in the annular space between elastic tube (2) inner tube and the outer tube, and temperature sensor (6) are through electrode line (5) connection switching contact (3).
6. The novel radio frequency electrode of claim 2, wherein: and a first electrode tip, a second electrode tip, a third electrode tip, … … and an nth electrode tip are arranged along the direction from the head part to the tail part of the radio-frequency electrode, wherein through holes are formed in the direction from the head part to the tail part of the radio-frequency electrode, and are used for the electrode wire (5) to pass through.
7. The novel radio frequency electrode of claim 2, wherein: the adapter contact (3) is externally connected with a radio frequency therapeutic apparatus through an adapter plug.
8. The novel radio frequency electrode of claim 2, wherein: the electrode tip (1) or the switching contact (3) is provided with an outward protruding step (7) at one end connected with the elastic tube (2), the outer wall of the outward protruding step (7) is provided with a groove (7-1) along the circumferential direction, the elastic tube (2) is provided with an inward recessed step (8) at one end connected with the electrode tip (1) or the switching contact (3), wherein the outward protruding step (7) is matched with the inward recessed step (8), when the electrode tip (1) or the switching contact (3) is connected with the elastic tube (2), the outward protruding step (7) is matched with the inward recessed step (8), and then hot pressing technology is adopted for crimping.
9. A method for manufacturing a novel radio frequency electrode according to any one of claims 1 to 8, comprising the following steps:
step 1: the method comprises the following steps of selectively manufacturing a single-contact electrode, a double-contact electrode or a multi-contact electrode, wherein the single-contact electrode comprises an electrode tip (1), a switching contact (3) and two elastic tubes (2), the double-contact electrode comprises two electrode tips (1), two switching contacts (3) and four elastic tubes (2), and the multi-contact electrode comprises n electrode tips (1), n switching contacts (3) and 2n elastic tubes (2);
step 2: the electrode tip (1), the elastic tube (2) and the switching contact (3) are butted in sequence, hot pressing process crimping is carried out on the butted position in sequence, the electrode tip (1) or the switching contact (3) is heated at first, and meanwhile, the butted position of the elastic tube (2) is pressurized, so that physical connection with connection strength and sealing is realized.
10. The use method of the novel radio-frequency electrode as claimed in any one of claims 1 to 9, comprising the following steps:
step 1: selecting a single-contact electrode, a double-contact electrode or a multi-contact electrode according to the disease condition of a patient;
step 2: puncturing by using a puncture needle, then penetrating the selected radio-frequency electrode into the puncture needle, leaving the tail part of the radio-frequency electrode outside the patient body, and then taking out the puncture needle to leave the radio-frequency electrode inside the patient body;
and step 3: the switching contact (3) at the tail part of the radio frequency electrode is connected with the radio frequency therapeutic apparatus through the switching plug, and radio frequency current is input through the radio frequency therapeutic apparatus to act on the affected part in the body of a patient at different electrode tips (1) for treatment.
CN202210134443.4A 2022-02-14 2022-02-14 Novel radio frequency electrode and manufacturing and using methods thereof Pending CN114343836A (en)

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CN202210134443.4A CN114343836A (en) 2022-02-14 2022-02-14 Novel radio frequency electrode and manufacturing and using methods thereof

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Application Number Priority Date Filing Date Title
CN202210134443.4A CN114343836A (en) 2022-02-14 2022-02-14 Novel radio frequency electrode and manufacturing and using methods thereof

Publications (1)

Publication Number Publication Date
CN114343836A true CN114343836A (en) 2022-04-15

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