With the rapid advancement of technologies such as microprocessors and sensors, electrosurgical techniques in the medical field have also seen significant improvement. In electrosurgery, large vessel sealing technology is a revolutionary development. Currently, LigaSure-type large vessel sealing devices dominate the market. Among them, ShouLiang-med’s AGISEAL series stands out for its excellent performance and has received widespread acclaim both domestically and internationally. These devices are now widely used in clinical surgical procedures.

In thyroid surgery, the use of energy devices has improved both safety and precision. However, the choice of energy device is a critical consideration for surgeons. Different types of energy devices have their own applications, advantages, and limitations at various stages of surgery—for example, ultrasonic energy devices versus large vessel sealing devices.

Ultrasonic energy devices convert electrical energy at 55.5 kHz into mechanical energy via piezoelectric ceramics. The mechanical vibration is transmitted to the tissue through the blade, causing high-frequency friction. This results in vaporization of water molecules, breakdown of protein hydrogen bonds, cell disruption, tissue separation, protein denaturation, and vessel coagulation. Approved by the U.S. FDA, ultrasonic scalpels can safely seal vessels with diameters under 5 mm. While these devices feature lightweight, compact, and flexible curved-tip designs and are increasingly used in thyroid surgery, it’s important to note that their higher operating temperatures can lead to significant lateral thermal spread—especially near the recurrent laryngeal nerve—posing a risk of postoperative complications due to nerve damage.

Traditional monopolar and bipolar energy devices typically seal vessels by forming an intraluminal coagulum and rely solely on visual cues for energy control. These devices lack a feedback mechanism to monitor output power and impedance, making it difficult to gauge optimal coagulation power and duration.

ShouLiang-med’s independently developed AGISEAL series of advanced energy devices addresses these shortcomings by incorporating a negative feedback detection system. Using enhanced bipolar pressure, AGISEAL denatures and fuses the collagen and fibrin in blood vessels, permanently sealing the lumen. AGISEAL can seal vessels with diameters less than 7 mm, and the sealed vessels can withstand arterial pressures up to three times the normal human level. Additionally, it operates at a lower temperature and produces minimal lateral thermal damage, effectively protecting the recurrent laryngeal nerve and reducing the risk of complications.

With intelligent feedback that accurately senses tissue coagulation levels and precisely regulates optimal coagulation power and time, AGISEAL maximizes surgical safety and has become the preferred energy device for thyroid surgery.

With the rapid growth of the global aging population and the steady advancement of minimally invasive surgical techniques, the energy-based surgical device market has emerged as a promising blue ocean with substantial growth potential. Among these, large vessel sealing system stands out as one of the most widely used energy surgical devices in clinical practice.

Large vessel sealing system is the advancement of the high frequency electrosurgical unit, employing the thermal effects generated by high-frequency electrical current applied to biological tissues to achieve effective hemostasis.Compared to traditional high-frequency electrosurgical unit, which offers rapid cutting speeds but operate at relatively high temperatures, large vessel sealing system achieves precise sealing at lower temperatures, thereby minimizing collateral tissue damage. This characteristic has made it the preferred choice for clinical surgeons.

ShouLiang-med is dedicated to the research, development, and manufacturing of large vessel sealing technologies and is recognized as an innovator in this field. The core product SL100M high-frequency surgical device has won favor among customers both at home and abroad for its advanced technology and professional support.

The SL100M is a versatile generator that integrates bipolar coagulation and vessel sealing functions. It delivers energy through precise algorithms and features intelligent tissue-sensing technology, which monitors tissue composition and impedance in real time. This enhances the speed and consistency of tissue sealing, laying a solid foundation for its outstanding surgical performance.

As an integrated surgical platform, the SL100M supports standard bipolar instruments for delicate procedures such as neurosurgery and microsurgery, while also being fully compatible with the AGISEAL series for sealing vessels up to 7mm in diameter. It overcomes the limitations of conventional bipolar systems—such as the need for full tissue exposure and prolonged operation time—and avoids foreign body residue from hemostatic clips. Compared to traditional electrosurgical units, it offers superior performance, particularly in laparoscopic and open tumor surgeries, significantly improving surgical safety.

The SL100M also excels in user experience. Equipped with the latest vessel sealing technology and a responsive feedback control system, it accurately detects the impedance of target tissue between the jaws. Once optimal sealing is achieved, the system automatically stops energy delivery and provides an audible alert. This intelligent design eliminates reliance on manual judgment, offering real-time audio-visual cues to help surgeons clearly understand the device’s status. With its intuitive interface and easy operation, even new users can quickly master the system, making it a reliable assistant in the operating room.