Minimally Invasive Surgery Generator

• ShouLiang-med SEH80A: Refining Physical Principles, Advancing the Future of Surgery

  Oct 29, 2025

  As a core device in modern surgical procedures, the high-frequency electrosurgical generator derives its efficiency and safety from the precise application of deep physical principles. It converts standard 50Hz low-frequency current into high-frequency current ranging from 300kHz to 750kHz, and relies mainly on three mechanisms—the skin effect, thermal effect, and Faraday effect—to achieve precise cutting and effective coagulation while ensuring maximum patient safety. The ShouLiang-med High Frequency Generator SEH80A is developed based on a profound understanding of these principles, integrating intelligent control technologies to further enhance surgical precision, safety, and operational efficiency.     The skin effect, also known as the surface effect, refers to the phenomenon where high-frequency current tends to flow along the surface of a conductor. In electrosurgery, this ensures that current primarily flows along the tissue surface rather than penetrating deeply into internal organs, thereby avoiding unintended electrical injury to vital structures. To ensure this effect functions safely, proper contact between the return electrode and the patient’s skin is essential. The ShouLiang-med SEH80A is equipped with a real-time Disposable Patient Return Electrode monitoring system that continuously checks electrode contact quality and current distribution. When abnormal impedance is detected, the system promptly alerts the operator, effectively preventing skin burns caused by excessive current density.   The thermal effect is the direct mechanism that enables tissue cutting and coagulation. When high-frequency current passes through tissue, ions oscillate rapidly in the electric field, generating heat through friction. The ShouLiang-med SEH80A features intelligent tissue sensing technology that automatically detects changes in tissue impedance and adjusts output power in real time. This intelligent adjustment allows heat to be precisely focused during cutting, causing rapid vaporization and clean tissue separation, while controlled heat diffusion during coagulation denatures proteins and seals blood vessels effectively. This not only improves surgical efficiency but also significantly reduces tissue charring and surgical smoke, enhancing visibility. The device also provides eight monopolar and six bipolar modes, flexibly meeting the needs of various surgical scenarios from open procedures to minimally invasive laparoscopic operations.   The Faraday effect explains the potential dangers of low-frequency electrical stimulation to the neuromuscular system. When current frequency falls below 100kHz, it can cause muscle spasms, pain, or even ventricular fibrillation. By operating above 300kHz, high-frequency electrosurgical generators effectively avoid nerve and muscle stimulation.   In summary, the excellent performance of high-frequency electrosurgery is built upon solid physical foundations, including the skin effect, thermal effect, and Faraday effect. Through the integration of real-time monitoring, adaptive power control, and multi-mode output, the ShouLiang-med SEH80A high-frequency surgical system transforms these physical principles into clinical efficiency and safety, exemplifying the intelligent and precise evolution of modern surgical equipment.

  Hot Tags : Electrosurgical High Frequency Generator Monopolar & Bipolar Electrosurgical Unit High-Frequency Electrosurgical Unit Surgical Diathermy Machine Energy-Based Surgical Generator Minimally Invasive Surgery Generator

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• High-Frequency Electrosurgical Unit Demonstrates Significant Advantages in Treating Hemorrhoids

  Aug 15, 2025

  Hemorrhoids, also known as anal fistula disease, have an incidence rate of 40%-50%. There's a  folk saying that "nine out of ten people develop hemorrhoids." Modern medical research has found that hemorrhoids are a physiological change, and humans naturally have a risk of developing hemorrhoids. Hemorrhoids can cause significant harm, with severe pain being the primary symptom during an episode. META analysis indicates that hemorrhoids are an important risk factor for colorectal cancer and are closely related to constipation, among other conditions. They negatively impact patients' daily lives and work, severely impairing their quality of life.   Hemorrhoid treatment can be divided into surgical and conservative therapies. Among them, surgical treatment has been increasingly popular due to its continuous improvement in technology and significantly reduced trauma. External excision and internal ligation, automatic hemorrhoid ligation, and circular mucosal resection and stapling of the hemorrhoids have gradually become widespread. Minimally invasive surgery has been proven effective, but its indications are limited. High-frequency electrosurgical unit combines the advantages of traditional ligation and circular ligation, using the electrosurgical unit to remove hemorrhoidal tissue, achieving good removal results.[1]   According to research data from the Department of Anorectal Surgery at Wuhan Fifth Hospital involving 174 patients, the incidence of complications in the observation group treated with high-frequency electrosurgical unit surgery was 26.4%, significantly lower than the 52.9% in the control group treated with traditional ligation surgery. particularly in key indicators such as anal-rectal stenosis (13.8% vs. 23.0%) and postoperative edema (8.0% vs. 14.9%), where the differences were statistically significant. This technique combines electrocoagulation hemostasis with ligation technology to achieve simultaneous hemostasis during surgery, reduce nerve ending exposure, and lower the pain score to 2.5 ± 1.4 points within three days postoperatively (3.9 ± 1.2 points in the traditional group). The pain score during dressing changes was controlled at 5.6 ± 1.3 points (7.1 ± 1.6 points in the traditional group). Patients recovered faster postoperatively, with time to ambulation shortened to 7.3 ± 1.3 hours and time to first bowel movement reduced to 4.3 ± 1.1 minutes. At the 6-month follow-up, the incidence of defecation difficulties (3.4%) and symptomatic recurrence rate (5.7%) in the observation group were significantly lower than those in the traditional surgery group (16.1%). The precise resection characteristics of the observation group preserved more normal anal cushion tissue, effectively reducing the risk of anal functional damage.   In summary, high-frequency electrosurgery unit enables simultaneous resection and hemostasis through minimally invasive procedures, demonstrating significant clinical advantages—particularly for treating multiple mixed hemorrhoids.     ShouLiang-med's independently developed high-frequency electrosurgical unit offers multiple cutting and coagulation modes, meeting all functional requirements for hemorrhoid surgery while further reducing patient injury and complications. Additionally, the monopolar electrodes and electrical pencils provided by ShouLiang-med are made from high-quality anti-adhesive materials, further optimizing surgical efficiency.     [1] Dai Luo, Hu Qi. Clinical Study on High-Frequency Electrosurgery Unit for Hemorrhoid Treatment [J]. *Journal of North Sichuan Medical College*, 2017, 32(3): 419-421.  

  Hot Tags : HF Generator Energy Platform Monopolar & Bipolar Electrosurgical Unit Minimally Invasive Surgery Generator Electrosurgical Pencil Monopolar Electrosurgical Pencil Surgical Cutting and Coagulation Pencil

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