阅读说明：本技术 防沾血手术电极及其制备方法 (Blood-sticking-preventing operation electrode and preparation method thereof ) 是由 刘新 王德伦 秦文跃 于 2019-10-16 设计创作，主要内容包括：本发明涉及医疗器械技术领域,具体公开了一种防沾血手术电极及其制备方法,所述方法包括对手术电极的表面进行除油、抛磨和清洗处理,对所述手术电极进行激光扫线加工,使其表面具有超亲水微纳米结构,将所述手术电极浸泡在低表面能材料的乙醇溶液中进行修饰,然后取出烘干,使其表面形成超疏水基底,将所述手术电极浸泡在润滑剂溶液中,充分浸泡后取出,倾斜静置并自然实干,使其表面形成均匀的油膜。本发明使手术电极前端金属零部件表面对人体组织、血液及组织液具有一定的防粘性,解决了现有技术中手术电极在手术过程中电极前端与人体组织、组织液、血液发生粘结等问题,降低对患者造成的影响,有助于患者术后恢复。(The invention relates to the technical field of medical instruments, and particularly discloses a blood-sticking-preventing surgical electrode and a preparation method thereof. The invention ensures that the surface of the metal part at the front end of the operation electrode has certain anti-adhesion property to human tissues, blood and tissue fluid, solves the problems that the front end of the operation electrode is bonded with the human tissues, the tissue fluid and the blood in the operation process in the prior art, reduces the influence on a patient and is beneficial to the postoperative recovery of the patient.)

1. A preparation method of a blood-staining-preventing surgical electrode is characterized by comprising the following steps:

s1, carrying out oil removal, polishing and cleaning treatment on the surface of an operation electrode;

s2, performing laser line sweeping processing on the surgical electrode to enable the surface of the surgical electrode to have a super-hydrophilic micro-nano structure;

s3, soaking the surgical electrode in an ethanol solution of a low-surface-energy material for modification, and then taking out and drying to form a super-hydrophobic substrate on the surface;

and S4, soaking the surgical electrode in a lubricant solution, taking out after the surgical electrode is fully soaked, obliquely standing and naturally drying to form a uniform oil film on the surface of the surgical electrode.

2. The method of claim 1, wherein in step S1, the surgical electrode is cleaned with absolute ethanol to remove oil, dried, sanded with sand paper to remove surface oxide layer, cleaned with deionized water, cleaned with ultrasonic waves, and dried.

3. The method of claim 2, wherein the surgical electrode is polished with 800# and 1500# sandpaper and cleaned with ultrasound for 5 min.

4. The method of claim 1, wherein in step S2, the surgical electrode is fixed on a workbench, and a laser scanning process is performed on the surface of the surgical electrode with a light pulse laser.

5. The method for preparing a blood-staining resistant surgical electrode according to claim 4, wherein the power of the fiber pulse laser is 40W, the pulse frequency is 20kHz, the moving speed of a light spot is 200mm/s, the distance between laser scanning lines is 50 μm, the width of the scanning line is 10 μm, and the number of times of scanning lines is 1.

6. The method for preparing a blood-staining-resistant surgical electrode according to claim 1, wherein in step S3, the low-surface-energy material is one or more of stearic acid, palmitic acid, lauric acid, and myristic acid, and the surgical electrode is dried in an oven and then naturally cooled to room temperature.

7. The method for preparing the blood-staining-resistant surgical electrode according to claim 6, wherein the ethanol solution of the low-surface-energy material is in a mass part of more than 0.1%, the modification time is more than or equal to 20min, the temperature in the oven is 50-80 ℃, and the drying time is 20-50 min.

8. The method of claim 1, wherein in step S4, the lubricant solution is one of perfluoropolyether oil, dupont krytox, silicone oil, and perfluorotriamide, the soaking time is greater than or equal to 15min, the inclined standing angle is 15 ° to 50 °, the inclined standing time is 2h, and the natural drying is 20 ℃ to 25 ℃ and the soaking time is 12 h to 24 h.

9. The method for preparing a blood-stained resistant surgical electrode according to any one of claims 1-8, wherein the material of the surgical electrode is one of aluminum, copper, zinc, iron, titanium alloy, magnesium alloy and stainless steel.

10. A blood-staining resistant surgical electrode prepared by the method for preparing a blood-staining resistant surgical electrode according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a blood-sticking-preventing surgical electrode and a preparation method thereof.

Background

Minimally invasive surgery has gradually become the mainstream of surgery due to its advantages of small wound, light pain, quick recovery, etc. In the process of cutting and stopping bleeding of the tissue of the minimally invasive surgery, the tissue is seriously stuck with a knife, which can cause scabbing and tearing of the knife, and cause medical accidents caused by secondary trauma. How to solve the important technical problem that the blood and body fluid sticking knife in the minimally invasive surgery is the minimally invasive surgery instrument.

The patent with the publication number of CN108836438A discloses a minimal access surgery sword for general surgery, the inside of this kind of scalpel blade is equipped with the dead slot, the inner chamber middle part of handle is equipped with the spread groove, spread groove and dead slot intercommunication, the left end of handle is equipped with the micropump, the inlet end and the spread groove intercommunication of micropump, the exit end of micropump is connected with the fluid-discharge tube, can in time clear up the blood of incision department, but unable complete clearance scalpel go up the human tissue of adhesion, further disinfection clearance is unlikely to increase operating time, lead to the disease to bleed many, resume slowly, produce other complications easily.

Patent publication No. CN206979575U discloses a knife-type surgical electrode, wherein the base body of the knife blade is made of stainless steel, and the surface of the knife blade is firstly heat-treated, so that the hardness, impact resistance and corrosion resistance of the surface of the knife blade are improved. The surface after heat treatment is further processed by electrolytic polishing to form a clean surface, which can further prevent rusting. However, the method has high operation temperature, which causes the human tissue to stick to the knife in the operation process, causes tissue trauma, lacerated bleeding and scalding, and causes operation accidents.

Patent publication No. CN108013931A discloses a low-temperature plasma surgical electrode which is a bipolar electrode, reduces current flowing through a human body, has small thermal injury, can realize fine cutting, ablation and hemostasis effects, and has high safety. But the problems that the surface lyophilic property of the operation electrode is bonded with human tissue fluid and blood in the operation process cannot be solved, the operation time is prolonged, and the postoperative recovery of a patient is not facilitated.

In the research method, the problems of much bleeding, slow recovery, easy generation of other complications and the like of a patient due to the use of the minimally invasive scalpel exist; the electric knife or the low-temperature plasma operation electrode has the problems that the front end of the electrode is bonded with human tissues, tissue fluid and blood due to the surface lyophilic property of the electrode, secondary damage is caused to a patient, and the electrode bonded with the human tissues and the blood is not easy to disinfect and clean, so that a new operation electrode is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to provide a blood-staining-preventing surgical electrode and a preparation method thereof, so as to solve the problem that the front end of the surgical electrode is bonded with human tissues, interstitial fluid and blood in the surgical process in the prior art.

In order to solve the technical problem, the invention provides a preparation method of a blood-sticking-preventing surgical electrode, which comprises the following steps:

s1, carrying out oil removal, polishing and cleaning treatment on the surface of an operation electrode;

s2, performing laser line sweeping processing on the surgical electrode to enable the surface of the surgical electrode to have a super-hydrophilic micro-nano structure;

s3, soaking the surgical electrode in an ethanol solution of a low-surface-energy material for modification, and then taking out and drying to form a super-hydrophobic substrate on the surface;

and S4, soaking the surgical electrode in a lubricant solution, taking out after the surgical electrode is fully soaked, obliquely standing and naturally drying to form a uniform oil film on the surface of the surgical electrode.

Preferably, in step S1, the surgical electrode is cleaned with absolute ethanol to remove oil, and then dried, and then polished with sand paper to remove a surface oxide layer, and then cleaned with deionized water, and then cleaned with ultrasonic waves, and dried.

Preferably, the surgical electrode is sanded with 800# and 1500# sandpaper, respectively, and the time for cleaning with ultrasonic waves is 5 min.

Preferably, in step S2, the surgical electrode is fixed to a table, and the surface of the surgical electrode is laser-processed by a light pulse laser.

Preferably, the power of the fiber pulse laser is 40W, the pulse frequency is 20kHz, the spot moving speed is 200mm/s, the laser scanning line interval is 50 μm, the scanning line width is 10 μm, and the scanning line times are 1.

Preferably, in step S3, the low surface energy material is one or more of stearic acid, palmitic acid, lauric acid, and myristic acid, and the surgical electrode is dried by an oven and then naturally cooled to room temperature.

Preferably, the mass part of the ethanol solution of the low surface energy material is more than 0.1%, the modification time is more than or equal to 20min, the temperature in the oven is 50-80 ℃, and the drying time is 20-50 min.

Preferably, in step S4, the lubricant solution is one of perfluoropolyether oil, dupont krytox, silicone oil, and perfluorotriamylamine, the soaking time is greater than or equal to 15min, the inclined standing angle is 15 to 50 degrees, the inclined standing time is 2 hours, and the lubricant solution is naturally dried at 20 to 25 ℃ and is placed for 12 to 24 hours.

Preferably, the material of the surgical electrode is one of aluminum, copper, zinc, iron, titanium alloy, magnesium alloy and stainless steel.

The invention also provides a blood-staining-preventing surgical electrode which is prepared by the preparation method of the blood-staining-preventing surgical electrode.

The blood-sticking-preventing surgical electrode and the preparation method thereof provided by the invention have the advantages that the surface of the metal part is treated by an etching method to form a micro-nano rough structure, and the blood-sticking-preventing metal part is obtained by modifying a low-surface-energy solution and a lubricant, so that the surface of the metal part instrument at the front end of the surgical electrode has certain anti-sticking property to human tissues, blood and interstitial fluid, the problems that the front end of the surgical electrode is stuck with the human tissues, the interstitial fluid and the blood in the surgical process in the prior art are solved, the influence on a patient is reduced, and the postoperative recovery of the patient is facilitated. The preparation method has the advantages that complex processing devices and operation steps are not needed, the preparation process is simple, rapid, efficient and environment-friendly, after the silicon oil is modified by the low-surface-energy material, the silicon oil can be stably stored in the microstructure on the surface of the substrate and is not easily replaced by other liquid, certain anti-adhesion performance is realized on human blood and tissue fluid in the operation process, the prepared metal material does not change the conductivity of the original electrode, the preparation method can be applied to a minimally invasive operation system, and the applied materials have biological safety and environmental friendliness.

Detailed Description

The following examples further describe embodiments of the present invention in detail. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The preparation method of the blood-staining-preventing surgical electrode comprises the following steps:

s1, carrying out oil removal, polishing and cleaning treatment on the surface of an operation electrode;

the operation electrode is made of one of aluminum, copper, zinc, iron, titanium alloy, magnesium alloy and stainless steel. And cleaning the surgical electrode by absolute ethyl alcohol to remove oil, after drying, polishing by 800# and 1500# abrasive paper respectively to remove a surface oxide layer, cleaning by deionized water, then cleaning by ultrasonic for 5min, and drying.

S2, performing laser line sweeping processing on the surgical electrode to enable the surface of the surgical electrode to have a super-hydrophilic micro-nano structure;

fixing the operation electrode on a workbench, and carrying out laser line sweeping processing on the surface of the operation electrode by using an optical fiber pulse laser, wherein the power of the optical fiber pulse laser is 40W, the pulse frequency is 20kHz, the light spot moving speed is 200mm/s, the laser line sweeping interval is 50 microns, the line sweeping width is 10 microns, and the line sweeping times are 1.

S3, soaking the surgical electrode in an ethanol solution of a low-surface-energy material for modification, and then taking out and drying to form a super-hydrophobic substrate on the surface;

the low-surface-energy material is one or a mixture of stearic acid, palmitic acid, lauric acid and myristic acid, the mass part of the ethanol solution of the low-surface-energy material is more than 0.1%, the modification time is more than or equal to 20min, the surgical electrode is dried by an oven, the temperature in the oven is 50-80 ℃, the drying time is 20-50 min, and the dried surgical electrode is naturally cooled to the room temperature.

S4, soaking the surgical electrode in a lubricant solution, taking out after sufficient soaking, obliquely standing and naturally drying to form a uniform oil film on the surface of the surgical electrode;

the lubricant solution is one of perfluoropolyether oil, DuPont krytox, silicone oil and perfluoro triamylamine, the soaking time is more than or equal to 15min, the inclined standing angle is 15-50 degrees, the inclined standing time is 2 hours, and the lubricant solution is naturally dried at the temperature of 20-25 ℃ and is placed for 12-24 hours.