Electrode for electrosurgery for treating trichiasis and operation steps of electrode

Abstract

According to the electrode for the electrosurgical operation for treating trichiasis, a solid or hollow needle with the diameter of a needle head being 0.1-0.5 is adopted, the needle head is covered with an insulating coating, a distance is formed between the upper edge of the insulating coating and a needle point of the needle head, the thickness D of the insulating coating is 0.01-0.05 mm, the covering length L of the insulating coating outside the needle head is 1-2 mm, and the diameter of the insulating coating is 0.1-0.5 mm. The tail end of the needle head is connected with the front end of the conductor, and an insulating sleeve is wrapped outside the front end of the conductor. The novel electrode is characterized by an exposed active sharp tip portion of the fine needle, the portion thereof extending beyond the exposed tip being fully insulated by a thin electrically insulating coating. The portion of the needle adjacent the tip is made insulated to avoid overheating and to concentrate high frequency current at the needle tip. The electrosurgical operation using the needle electrode has the important advantage of concentrating the current causing the tissue damage at the required tissue, the damage to the surrounding tissue is minimal, the operation is relatively fast, the pain or trauma to a patient is small, and no influence is caused on the skin and the conjunctival tissue of the surrounding tissue after the operation.

Description

Technical Field

[0001] The invention relates to the technical field of medical machinery, in particular to an electrode for electrosurgery for treating trichiasis, and is used for surgical treatment of trichiasis of upper and lower eyelids. Background Art

[0002] For adults with small amounts of localized trichiasis with entropion, the following treatment options are usually used: (1) Plucking method: When the number of inverted eyelashes is small, you can directly use eyelash tweezers to pluck them out. This is simple and effective, but because the eyelash follicles are not damaged, they are prone to recurrence within a few weeks. The eyelashes that grow again will be thicker and harder, irritating the cornea. Therefore, plucking is only done when the conditions are simple and there is no other way, or when other methods have been tried and failed; (2) Electrolysis: Electrolysis destroys the hair follicles and removes them. Sometimes it takes several times to achieve the desired effect. The success rate is about 10-20%. (3) Cryotherapy: It can relieve many cases of ingrown trichiasis. Potential complications include: skin depigmentation, postoperative facial notching, damage to facial glands, and effects on tear film stability. (4) Laser treatment: Laser separation is effective for a small number of scattered trichiasis; (5) Surgical excision of hair follicles under direct microscope: The hair follicles can be removed under direct microscope. If there are a large number of inverted eyelashes, wedge-shaped excision or anterior lamellae excision can be performed. This is effective for localized clusters of inverted eyelashes that cannot be treated by other methods.

[0003] The object of the present invention is an improved surgical procedure for trichiasis. The electrosurgical current used is preferably higher than 1.5 MHz, preferably higher than 3 MHz. At these high frequencies (commonly known as radiosurgery), the destruction is accomplished by volatilization of the intracellular fluid at the contact point of the transmitting electrode, which mainly causes less lateral heat diffusion and therefore less damage to adjacent cell layers. High-frequency ablation is a new surgical procedure that can be used to treat localized trichiasis. This procedure is non-recurrent and the wound heals within 3 days. During the operation, an ultra-fine radiofrequency probe with an insulating layer is used to ablate the hair follicles of the trichiasis with entropion of the lower eyelid.

[0004] Our novel electrode features an exposed active sharp tip portion of a thin needle, the portion of which extending beyond the exposed tip is completely insulated by a thin electrically insulating coating. The portion of the needle adjacent to the tip is made insulated to avoid excessive heating and to concentrate the high frequency current at the needle tip. Electrosurgery using needle electrodes has the important advantages of concentrating the current that causes tissue damage at the desired tissue, with minimal damage to surrounding tissue, and the procedure is relatively quick with little pain or trauma to the patient. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an electrode for electrosurgery for treating trichiasis, which effectively solves the problems in the prior art.

[0006] The technical solution adopted by the present invention is: an electrode for electrosurgery for treating trichiasis, characterized in that: it includes a solid or hollow needle with a needle diameter of 0.1-0.5, the outside of the needle is covered with a layer of insulating coating, a distance is formed between the upper edge of the insulating coating and the needle tip of the needle, the thickness D of the insulating coating is 0.01-0.05mm, the covering length L of the insulating coating on the outside of the needle is 1-2mm, the tail end of the needle is connected to the front end of the conductor, the outside of the front end of the conductor is wrapped with an insulating sleeve, and a fixing glue is formed between the insulating coating of the needle and the end of the insulating sleeve.

[0007] The electrode operation steps for electrosurgery for treating trichiasis include the following steps: Ⅰ. The needle tip is an electrically exposed sharp point for applying electrosurgical current when the electrical conductor is connected to an electrosurgical current source; II. The sharp point is capable of piercing the patient's skin and is configured to allow a physician to advance the sharp point proximally into the patient's eyelid; III. Open the patient's eyelid and advance the electrode proximally into the patient's eyelid; IV. Activate the electrosurgical device until the lining of the vein adjacent to the active tip is damaged; V. The frequency of the electrosurgical current is 1.5 MHz to 4.8 MHz; VI. Simultaneously activate the electrosurgical device to damage other parts of the eyelid.

[0008] Compared with the prior art, the present invention provides an electrode for electrosurgery for treating trichiasis, the novel electrode is characterized by an exposed active sharp tip portion of a thin needle, the portion of which extending beyond the exposed tip is completely insulated by a thin electrical insulating coating. The portion of the needle adjacent to the tip is made insulated to avoid overheating and to concentrate the high-frequency current at the tip of the needle. Electrosurgery using needle electrodes has the important advantages of concentrating the current that causes tissue damage at the desired tissue, with minimal damage to surrounding tissue, relatively quick surgery, little pain or trauma to the patient, and no effect on the skin and conjunctival tissue of the surrounding tissue after the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention.

[0010] Figure 2 It is a schematic diagram of the needle structure of the present invention.

[0011] Figure 3Schematic diagram of the structure of a needle tip embodiment of the present invention. DETAILED DESCRIPTION

[0012] The following will be combined with 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] like Figure 1-3 As shown, the present invention discloses an electrode for electrosurgery for treating trichiasis, comprising a needle 1, the outer portion of the needle is covered with an insulating coating 6, a distance is formed between the upper edge of the insulating coating 6 and the needle tip of the needle 1, the thickness of the insulating coating 6 is 0.01-0.05 mm, the covering length of the insulating coating 6 on the outer portion of the needle 1 is 1-2 mm, the tail end of the needle 1 is connected to the front end of the conductor 2, the outer portion of the front end of the conductor 2 is wrapped with an insulating sleeve 3, and a fixing glue 5 is formed between the insulating coating 6 of the needle 1 and the end of the insulating sleeve 3.

[0014] In a specific implementation, the conductor 2 is a copper rod or a stainless steel conductor.

[0015] In a specific implementation, a protective sleeve 4 is provided outside the insulating sleeve 3 .

[0016] In a specific implementation, the needle tip of the needle 1 is a single-bevel needle tip.

[0017] In a specific implementation, the needle tip of the needle 1 is a three-bevel needle tip.

[0018] In a specific implementation, the needle tip of the needle 1 is a four-bevel needle tip.

[0019] In a specific implementation, the needle tip of the needle 1 is a conical needle tip.

[0020] In specific implementation, the thickness of the insulating coating is 0.01mm, the coverage length of the insulating coating is 1.2mm, the needle tip length is 4mm-28mm, the outer diameter specification of the needle can be selected from 25G-34G, the insulating sleeve can withstand a high temperature of 570 degrees Celsius, and the protective sleeve is used to protect the needle from damage.

[0021] An electrode operation procedure for electrosurgery for treating trichiasis comprises the following steps: Ⅰ. The tip of the needle (1) is an electrically exposed sharp point for applying electrosurgical current when the conductor (2) is connected to an electrosurgical current source; II. The sharp point is capable of piercing the patient's skin and is configured to allow a physician to advance the sharp point proximally into the patient's eyelid; III. Open the patient's eyelid and advance the electrode proximally into the patient's eyelid; IV. Activate the electrosurgical device until the lining of the vein adjacent to the active tip is damaged; V. The frequency of the electrosurgical current is 1.5 MHz to 4.8 MHz; VI. Simultaneously activate the electrosurgical device to damage other parts of the eyelid.

[0022] In a specific implementation, the frequency of the electrosurgical current in step V is 3 MHz.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrode for electrosurgery for treating trichiasis, characterized in that: The invention comprises a solid or hollow needle with a needle tip (1) having a diameter of 0.1-0.5 mm, the outer portion of the needle tip being covered with a layer of insulating coating (6), a distance being formed between the upper edge of the insulating coating (6) and the needle tip of the needle tip (1), the thickness D of the insulating coating (6) being 0.01-0.05 mm, the covering length L of the insulating coating (6) on the outer portion of the needle tip (1) being 1-2 mm, the tail end of the needle tip (1) being connected to the front end of a conductor (2), the outer portion of the front end of the conductor (2) being wrapped with an insulating sleeve (3), and a fixing glue (5) being formed between the insulating coating (6) of the needle tip (1) and the end of the insulating sleeve (3).

2. An electrode for electrosurgery for treating trichiasis according to claim 1, characterized in that: The conductor (2) is a copper rod or a stainless steel conductor.

3. An electrode for electrosurgery for treating trichiasis according to claim 1, characterized in that: A protective sleeve (4) is provided outside the insulating sleeve (3).

4. The electrode for electrosurgery for treating trichiasis according to claim 1, characterized in that: The needle tip of the needle (1) is a single-bevel needle tip.

5. The electrode for electrosurgery for treating trichiasis according to claim 1, characterized in that: The needle tip of the needle (1) is a three-bevel needle tip.

6. The electrode for electrosurgery for treating trichiasis according to claim 1, characterized in that: The needle tip of the needle (1) is a four-bevel needle tip.

7. The electrode for electrosurgery for treating trichiasis according to claim 1, characterized in that: The needle tip of the needle (1) is a conical needle tip.

8. An electrode operation procedure for electrosurgery for treating trichiasis, comprising the following steps: Ⅰ. The tip of the needle (1) is an electrically exposed sharp point for applying electrosurgical current when the conductor (2) is connected to an electrosurgical current source; II. The sharp point is capable of piercing the patient's skin and is configured to allow a physician to advance the sharp point proximally into the patient's eyelid; III. Open the patient's eyelid and advance the electrode proximally into the patient's eyelid; IV. Activate the electrosurgical device until the lining of the vein adjacent to the active tip is damaged; V. The frequency of the electrosurgical current is 1.5 MHz to 4.8 MHz; VI. Simultaneously activate the electrosurgical device to damage other parts of the eyelid.

9. The electrode operation steps for electrosurgery for treating trichiasis according to claim 1, characterized in that: The frequency of the electrosurgical current in step V is 3 MHz.

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