Case sharing丨Jinshazhou Hospital of Guangzhou University of Chinese Medicine completed the first clinical application of SIS Staple Line Reinforcement


Basic information of Patients

  • Age: 41

  • Gender: Female

  • Height: 161cm

  • Weight: 84.5kg

  • BMI:32.6kg/㎡

Preoperative Diagnosis

Metabolic Syndrome

Modus Operandi

Laparoscopic gastric volume reduction (sleeve gastrectomy) + Open jejunum surgery

Expert Team

Jinshazhou Hospital, Guangzhou University of Chinese Medicine

Intraoperative application

1. Sleeve gastrectomy

2. Jejunum transection

3. Side to side jejunum anastomosis


Figure: Sleeve gastrectomy performed using a stapler loaded with SIS Staple Line Reinforcement2.jpg

Figure: Demonstration of anastomosis during sleeve gastric surgery3.jpg

Figure: Jejunum transection performed using a stapler loaded with SIS Staple Line Reinforcement4.jpg

Figure: Demonstration of anastomosis after jejunum transection5.jpg

Figure: Side to side jejunum anastomosis performed using a stapler loaded with SIS Staple Line Reinforcement6.jpg

Figure: Demonstration of anastomosis after side to side jejunum anastomosis

Experts usage feedback

Director Dai Xiaojiang team usage feedback:

1. VIDASIS® SIS Staple Line Reinforcement and the anastomosis fit well, and the loading process is smooth and without pressure.

2. Smooth through the 12mm trocar, with no lag.

3. Before firing, the backing needs to be removed by drawing wire, which is easy to operate, and the backing is easy to be pulled out.

4. After loading the SIS Staple Line Reinforcement, no obvious resistance to the anastomotic pressing and cutting tissue.

5. In the sleeve gastric surgery, VIDASIS®SIS Staple Line Reinforcement was used. After the operation, the overall margin examination was clean, with no small blood vessel blood seepage, and no nail explosion, and the overall effect was satisfied.

6.In the past, there was no SIS Staple Line Reinforcement in the jejunum separation, and there was usually bleeding, which takes time to stop the bleeding. During this operation, after the jejunum separation with VIDASIS®SIS Staple Line Reinforcement, the cutting margin was very clean and no bleeding, which saved the hemostasis operation time.

7. In the jejunal lateral anastomosis, after medical lubrication was added to the backing of VIDASIS®SIS Staple Line Reinforcement, the compliance was good when the stapler entered the jejunal opening, with no problems of large friction and difficult to enter. After the cutting, the internal anastomosis was checked with no bleeding and good results.

In general, by using the VIDASIS®SIS Staple Line Reinforcement in the whole operation, gastrointestinal detachment and margin bleeding after anastomosis can be significantly reduced, which is worthy of clinical application. The SIS Staple Line Reinforcement is prepared from SIS material that can promote tissue regeneration. By promoting tissue regeneration and accelerating the patient healing time, we will continue to pay attention to the patient recovery in the subsequent follow-up, and actually verify the product effect.

VIDASIS®SIS Staple Line Reinforcement

VIDASIS®SIS Staple Line Reinforcement, adopt SIS materials of Biosis Healing with independent intellectual property rights. In 2016, creative design and invention patent were launched, and clinical trial was launched in 2017, which was officially approved for the special approval process of innovative medical devices in 2018. In August 2022, the class III medical device registration certificate of National Medical Products Administration was officially obtained.

This product can be used with a stapler for strengthening the site of the anastomosis, and it is suitable for distal gastrectomy, proximal gastrectomy, sleeve gastrectomy, and gastrointestinal gastrostomy. The participating clinical centers include: West China Hospital of Sichuan University, Peking University Cancer Hospital, Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology, Zhongshan Hospital Affiliated to Fudan University, and Jiangsu Provincial People's Hospital.7.png

Figure: Official website of the NMPA

By searching the database of domestic devices of National Medical Products Administration, there are no domestic devices for the same expected purpose. Biosis Healing SIS Staple Line Reinforcement is the exclusive and first product in China. Through the search of foreign competing products, we also found that SIS Staple Line Reinforcement prepared by SIS materials for Disposable Circular Stapler reinforcement, it is unprecedented in the world. For SIS Staple Line Reinforcement for Disposable Linear Stapler, there are similar applications in the United States, but never entered China.

Moreover, we also found that SIS Staple Line Reinforcement used for Disposable Linear Stapler have many years of application experience in foreign surgery. As it is reported in the literature, there is a high incidence of anastomotic-related complications such as bleeding and anastomotic leakage during surgery with an stapler. A large-sample meta-analysis of 16,967 articles (56,309 cases included in anastomotic leakage related studies, 41,864 cases included in bleeding-related studies) indicated, the incidence of bleeding was up to 3.45% in cases without SIS Staple Line Reinforcement, the incidence of anastomotic leakage was up to 2.75%, however, the incidence of bleeding and anastomotic leakage with SIS Staple Line Reinforcement of animal-derived biomaterials decreased to 1.23% and 1.28%, respectively. The results significantly were better than applied suture reinforcement (the incidence of bleeding was 2.69%, the incidence of anastomotic leakage was 2.45%) and reinforced products with synthetic materials (the incidence of bleeding was 2.48%, the incidence of anastomotic leakage was 2.61%). This large meta-analysis showed that SIS Staple Line Reinforcement for sleeve gastrectomy and gastrojejunostomy surgery can significantly reduce the incidence of bleeding and anastomotic leakage, and that the biomaterial anastomotic reinforcement products are better than the synthetic material anastomotic reinforcement products.

In a prospective study of Biologic Staple Line Reinforcement products in 722 sleeve gastrectomy by Morris et al showed that the incidence of bleeding was 1.2%, and the incidence of anastomotic leakage was 0.6%, no postoperative deaths. The results indicating that non-crosslinked pig small intestinal submucosal material (SIS) could significantly reduce the incidence of anastomotic bleeding and anastomotic leakage during sleeve gastrectomy, confirming the safety and effectiveness of SIS materials for sleeve gastrectomy.

In 2020, the European Association of Endoscopic Surgery (EAES) issued clinical practice guidelines for weight loss surgery, summarizing the latest evidence on weight loss surgery and strongly recommending the use of SIS Staple Line Reinforcement during sleeve gastrectomy to reduce perioperative complications, including overall mortality and the incidence of bleeding.8.jpg

Figure: some foreign evidence-based medical data

Product Superiority:

  • National Medical Products Administration Special Approval Channel Products for Innovative Medical Devices (No.1,2018);

  • Domestic exclusive full series of SIS Staple Line Reinforcement;

  • World's first SIS Staple Line Reinforcement for pipe stapler;

  • Accelerates anastomotic tissue regeneration and promotes anastomotic healing;

  • Reduce anastomotic bleeding and reduce anastomotic leakage-related complications;

  • Circular SIS Staple Line Reinforcement (can be used with Disposable Endoscopic Linear Cutter Stapler, Disposable Linear Cutter Stapler), flat type SIS Staple Line Reinforcement, round SIS Staple Line Reinforcement (used with Disposable Circular Stapler), unique invention patent can support most of the mainstream stapler manufacturers products.

This product has been on the market, and the national investment

promotion has been officially launched.

For more product details, please contact us.

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