510K Clear



Top Premium Quality

   -- by LEAN

          -- by Zero Defect                     -- by UWELL

We make trocars and other medical devices as 

TOYOTA makes automobiles.


In Uwell, Quality is not a problem, but a solution

TianJin Uwell Medical Device Manufacturing Co.,Ltd
  • Postoperative Ascites of Unknown Origin following Laparoscopic Appendicectomy: An Unusual Complication of Laparoscopic Surgery


  • Single-Access Laparoscopic Surgery for Ileal Disease


  • Single-Incision Laparoscopic Surgery for Intersigmoid Hernia


    Intersigmoid hernia is a rare form of internal hernia. Here, we report a case of intersigmoid hernia and provide a brief review of the 62 cases involving the mesosigmoid reported in Japan from 2000 to 2013. In the current case, a 26-year-old man with no previous history of abdominal surgery presented with abdominal pain and vomiting. Abdominal computed tomography revealed an extensively dilated small bowel and a closed loop of small bowel in the mesosigmoid. The patient was diagnosed with an intestinal obstruction due to an incarcerated internal hernia involving the mesosigmoid. There was no blood flow obstruction at the incarcerated bowel. An elective single-incision laparoscopic surgery was performed after decompression of the bowel using ileus tube. As the ileum herniated into the intersigmoid fossa, the patient was diagnosed with an intersigmoid hernia. The incarcerated small bowel was reduced in order to make it viable, and the hernial defect was closed with interrupted sutures. The patient had an uneventful recovery and was discharged on postoperative day five.

  • Laparoscopic Surgery for Recurrent Crohn's Disease


    In spite of the recent improvements in drug therapy, surgery still represents the most frequent treatment for Crohn's disease (CD) complications. Laparoscopy has been widely applied over the last twenty years in colorectal surgery and was associated with lower postoperative pain, shorter hospitalization, faster return to daily activities, and better cosmetic results. Laparoscopy experienced a slower diffusion in inflammatory bowel disease surgery than in oncologic colorectal surgery, but proved to be safe and effective, and is currently considered the gold standard for the treatment of primary uncomplicated ileocolic CD. Indications for laparoscopy in CD have recently been widened to embrace more complicated or recurrent CD. This paper reviews the available data on the subset of recurrent CD patients. The reported results indicate that laparoscopy may be safely applied even in selected recurrent CD cases in hands of IBD surgeons with broad laparoscopic experience

  • Laparoscopic Surgery Can Reduce Postoperative Edema Compared with Open Surgery


    Aim. The study aimed to investigate the impact of laparoscopic surgery and open surgery on postoperative edema in Crohn’s disease. Methods. Patients who required enterectomy were divided into open group (Group O) and laparoscopic group (Group L). Edema was measured using bioelectrical impedance analysis preoperatively (PRE) and on postoperative day 3 (POD3) and postoperative day 5 (POD5). The postoperative edema was divided into slight edema and edema by an edema index, defined as the ratio of total extracellular water to total body water. Results. Patients who underwent laparoscopic surgery had better clinical outcomes and lower levels of inflammatory and stress markers. A total of 31 patients (26.05%) developed slight edema and 53 patients (44.54%) developed edema on POD3. More patients developed postoperative edema in Group O than in Group L on POD3 (). The value of the edema index of Group O was higher than that of Group L on POD3 and POD5 ( versus , ; versus , , resp.). Conclusions. Compared with open surgery, laparoscopic surgery can reduce postoperative edema, which may contribute to the better outcomes of laparoscopic surgery over open surgery.

  • Laparoscopic Surgery in Elderly Patients Aged 65 Years and Older with Gynecologic Disease


    Objectives. The study was conducted to characterize the use of the laparoscopic surgery in elderly patients. Methods. The medical records of elderly patients aged ≥65 years who underwent laparoscopic surgery were retrospectively reviewed for diseases, surgical procedures, histological diagnosis, intraoperative and postoperative complications, and reasons for presentation. Results. Of the 405 patients who underwent laparoscopic surgery between January 2005 and March 2012, 41 (10.1%) were aged ≥65 years. The most common disease treated by surgery was ovarian tumor, followed by uterine prolapse. Histological diagnosis of ovarian tumor specimens obtained from 23 patients included serous cystadenoma (44.0%), mature cystic teratoma (20.0%), mucinous cystadenoma (20.0%), and endometrioma (4%). In contrast, in the non-elderly group, the most common histological diagnosis was endometrioma (42.9%), followed in order by mature cystic teratoma (28.3%), serous cystadenoma (18.0%), and mucinous cystadenoma (4.7%). While 23.7% of the non-elderly patients required emergency laparoscopic surgery, none of the elderly patients required emergency surgery. Only 1 of 27 patients who underwent surgery for an ovarian or adnexal mass presented with abdominal pain. No one developed serious intraoperative or postoperative complications. Conclusion. Laparoscopic surgery can be safely performed in elderly patients. It should be noted, however, that few elderly patients with benign pelvic mass manifest symptoms before undergoing surgery.

  • Recommendation Regarding the Use of Cloth Face Coverings, Especially in Areas of Significant Community-Based Transmission


  • People who are at higher risk for severe illness


    COVID-19 is a new disease and there is limited information regarding risk factors for severe disease. Based on currently available information and clinical expertise, older adults and people of any age who have serious underlying medical conditions might be at higher risk for severe illness from COVID-19.

  • How to Determine Classification


  • Classify Your Medical Device