公开(公告)号：US20220361887A1

公开(公告)日：2022-11-17

申请号：US17470808

申请日：2021-09-09

申请人： ZHEJIANG UNIVERSITY

发明人： Xiujun CAI ,  Shuyou PENG ,  Yifan WANG ,  Chen LU ,  Mingyu CHEN

IPC分类号： A61B17/12 ,  A61B17/132 ,  A61B17/128

摘要： A laparoscopic staged hepatectomy using round-the-liver ligation is carried out includes: (1) a laparoscopic operation is performed with general anesthesia using round-the-liver ligation, the branches of the portal vein of the hemiliver are ligated, a tourniquet is used to tighten the connecting part between the right and left hemilivers to block the communicating blood flow between the hemiliver to be removed and the hemiliver to be reserved, a drainage tube is put into the peritoneal cavity, then close the peritoneal cavity; (2) the patient gradually resumes eating after the first operation, and recuperate to make the volume of the hemiliver increase to an expected volume; (3) after the hemiliver increases to the expected volume, a laparoscopic liver resection is carried out with general anesthesia to remove the diseased hemiliver, and then the patient is nursed to be completely recovered. An instrument for implementing the laparoscopic staged hepatectomy is also disclosed.

公开(公告)号：US20200029968A1

公开(公告)日：2020-01-30

申请号：US16337849

申请日：2017-07-17

申请人： ZHEJIANG UNIVERSITY

发明人： Xiujun CAI ,  Mingyu CHEN ,  Chen LU ,  Yifan WANG ,  Diyu HUANG ,  Hepan ZHU ,  Yibin ZHU ,  Bin ZHANG

IPC分类号： A61B17/11

摘要： An absorbable and unidirectionally compressible intestine-intestine stapler, comprising a first through pipe portion and a second through pipe portion. The first through pipe portion can move back and forth relative to the second through pipe portion, and the first through pipe portion and the second through pipe portion are inseparable. The first through pipe portion and the second through pipe portion respectively comprises large ends and small ends; the large ends are used for fixing an intestinal canal; and the small end of the second through pipe portion is sheathed into the small end of the first through pipe portion. The two large ends are consistent in size; when the first through pipe portion moves relative to the second through pipe portion, the two large ends are draw close to each other to achieve an intestine-intestine and end-end anastomosis. The outer sides of circular rings at the ends of the small ends of the first through pipe portion and the second through pipe portion are provided with gradually-expanded elastic horn-shaped openings; when the first through pipe portion closes up or opens relative to the second through pipe portion, the elastic horn-shaped openings of the two ends open or are squeezed into the large ends of the first through pipe portion and the second through pipe portion. The stapler can make two stapled intestinal canals rest relatively, thereby avoiding adjustments required in other assembling modes.

公开(公告)号：US20240299154A1

公开(公告)日：2024-09-12

申请号：US18670257

申请日：2024-05-21

申请人： ZHEJIANG UNIVERSITY

发明人： Xiujun CAI ,  Zhongyu WU ,  Mingyu CHEN ,  Diyu HUANG ,  Yifan WANG ,  Lei SHI ,  Weijian DAI ,  Yanli MA

IPC分类号： A61F2/04 ,  A61L31/04

CPC分类号： A61F2/04 ,  A61L31/04 ,  A61F2002/045 ,  A61F2230/0069 ,  A61F2250/0059 ,  A61F2250/0069

摘要： A method of an intestinal protective ostomy with the use of a degradable intestinal diversion device and an intubation includes steps of: preparing the degradable intestinal complete diversion device; after cutting off the terminal ileum intestine, measuring the diameter of the intestine, and then selecting a degradable intestinal diversion device of appropriate specifications according to the diameter of the intestine; when diverting, placing the device in the intestinal cavity, and fixing the ileum on the device with a thread at the convex ring; inserting the stoma drainage tube in the proximal ileum where the device is placed against the direction of intestinal peristalsis; and disintegrating and discharging the device with the contents of the intestine. The invention used with a drainage tube realizes complete intestinal diversion without secondary operations of stoma reintroduction.

公开(公告)号：US20220347931A1

公开(公告)日：2022-11-03

申请号：US17762361

申请日：2020-08-28

申请人： ZHEJIANG UNIVERSITY

发明人： Jun YIN ,  Yang LI ,  Yifan WANG ,  Qijiang MAO ,  Jianzhong FU

IPC分类号： B29C64/393 ,  B29C64/129 ,  B29C64/264 ,  B33Y50/02

摘要： A control method for digital light processing (DLP) printing based on an absorbance of a photocurable material includes: adding a light absorber to a photocurable material for DLP printing, measuring a liquid absorbance and a solid absorbance per unit thickness of the photocurable material at different concentrations of the light absorber, calculating an actual solid-liquid absorbance ratio, and comparing the ratio with a theoretically predicted value of a solid-liquid absorbance ratio to obtain an actual concentration of the light absorber in the photocurable material; measuring a curing threshold time of the photocurable material, substituting the solid absorbance per unit thickness, the liquid absorbance per unit thickness and the curing threshold time into a single-layer curing model to obtain a relationship between an exposure time tT and a curing thickness H; this method can accurately obtain the exposure time corresponding to the thickness of any material that needs to be printed.

公开(公告)号：US20210059676A1

公开(公告)日：2021-03-04

申请号：US16999698

申请日：2020-08-21

申请人： ZHEJIANG UNIVERSITY

发明人： Xiujun CAI ,  Zhongyu WU ,  Mingyu CHEN ,  Diyu HUANG ,  Yifan WANG ,  Lei SHI ,  Weijian DAI ,  Yanli MA

IPC分类号： A61B17/11 ,  A61B17/12 ,  C08L67/02 ,  C08K3/30

摘要： A degradable intestinal complete diversion device, made of biocompatible degradable materials, includes a circular tube constituting the bridge for the intestinal incisions on both sides to crawl towards each other and anastomosed; the end of the circular tube is connected with a gradually expanding flared opening, and a convex ring for binding the broken end of the intestine is arranged on the circular tube near each flared opening, and the hollow inner cavity of the circular tube is provided with a barrier film for blocking the hollow inner cavity. The invention used with a drainage tube realizes complete intestinal diversion without secondary operations of stoma reintroduction.