11 results about "Pancreatic Fluid" patented technology

The invention discloses a self-breaking outer drainage tube, and relates to the technical field of medical instruments, the self-breaking outer drainage tube comprises a tube body, and the tube body comprises a drainage part, a breaking part, a leading-out part and a puncture part; the drainage part and the fracture part are both made of degradable materials; the hole wall thickness of the circulation hole at the fracture part is smaller than the hole wall thickness of the circulation hole at the drainage part; during surgical operation, the degradable inner drainage part is placed in the pancreatic duct, the fracture part crosses the anastomotic stoma by 7-8 cm and crosses the biliary-intestinal anastomotic stoma, and the leading-out part walks in the enteric cavity to a proper position, penetrates out of the intestinal wall and is led out of the body through the abdominal wall. Cutting the puncture part to expose the outlet of the circulation hole, and discharging the body fluid through the circulation hole; after a certain period of time after the operation, the fracture part is automatically fractured under the action of pancreatic juice, the leading-out part is pulled out, the degradable drainage part continues to be degraded in the body and maintains the drainage function, and finally the drainage part is absorbed by the body or discharged out of the body without being taken out through the operation.

The invention belongs to the field of biomedical materials, and particularly relates to an inner drainage end-by-end reducer tube based on the electrostatic spinning technology and a preparation method thereof.The inner drainage end-by-end reducer tube comprises an end-by-end reducing drainage tube, the whole drainage tube is of a hollow conical tubular structure, and the surface of the drainage tube is provided with regularly-arranged thread structures; the invention further provides a preparation method of the inner drainage end-by-end reducer pipe. The defects of existing internal drainage are overcome, and the natural anatomical form of the pancreatic duct is complied with by means of the drainage tube with the diameter changed end by end; the drainage tube is provided with a surface thread structure, and by matching with the swelling characteristic of a biodegradable material, the friction force between the drainage tube and the pancreatic duct wall is increased, and the probability of displacement of the drainage tube due to intestinal tract movement or pancreatic juice scouring is reduced.

The present disclosure relates to a medical tissue adhesive for pancreatic plugging and the preparation method and use thereof. The medical tissue adhesive composition forming the medical tissue adhesive of the present disclosure comprises a medical tissue adhesive component and a chelating agent component; wherein the medical tissue adhesive component comprises a first component and a second component, the first component comprises four-arm polyethylene glycol amine, and the second component comprises four-arm-polyethylene glycol-succinimidyl glutarate; wherein m and n are natural numbers; and the chelating agent component comprises polyphenol. The medical tissue adhesive prepared from the medical tissue adhesive composition of the present disclosure is capable of firmly binding to the surface of the pancreatic tissue, and is capable of withstanding the dynamic pressure as a result of pancreatic juice leakage and the enzymatic degradation activity of pancreatic juice. More importantly, the medical tissue adhesive of the present disclosure has an excellent antibacterial ability and is capable of preventing the infection caused by the long-term accumulation of the leaked pancreatic juice.

The utility model relates to medical instrument technical field especially, and it is a kind of covered stent and implantation system.This covered stent includes support framework and film, wherein: support framework is the hollowed out cylinder structure of peripheral surface, it can be radially compressed and expand;Film is coated on part support framework, and drainage mesh is formed at the region of support framework not being coated by film.Due to film being coated on part support framework, drainage mesh is formed at the region of support framework not being coated by film, bile of gallbladder, bile in common hepatic duct and pancreatic juice in pancreatic duct can enter the inside of covered stent through drainage mesh and reach duodenal papilla, thereby avoiding the phenomenon that bile and pancreatic juice cannot flow out from common bile duct and reach duodenal papilla due to common bile duct being pressed by stent, and simultaneously, a plastic stent does not need to be additionally implanted in common bile duct to help common bile duct drainage, to achieve the purpose of reducing operation cost and operation complexity.

The application provides a fluorescent probe, a preparation method and application thereof, and relates to the technical field of chemical analysis and detection. The fluorescent probe comprises a compound represented by formula (I) or a salt thereof. The application provides a probe capable of being used for rapid detection and imaging of pancreatic juice leakage in operation and after operation. The probe has good stability and optical performance, high selectivity and sensitivity, and the preparation method is simple.

This invention discloses an intelligent monitoring and repair system for gastrointestinal anastomoses, relating to the fields of medical devices and biomedical engineering technology. The system includes a bioresponsive sealing adhesive, an intelligent drainage catheter, and an external intelligent terminal. The sealing adhesive covers the surface of the anastomosis and releases colorimetric and fluorescent signals under the action of gastric, intestinal, or pancreatic juice. The intelligent drainage catheter has a main drainage chamber, a pneumatic monitoring chamber, an optical conduction channel, and a perfusion chamber, with an anti-adhesion cage at its tip. The external intelligent terminal is used for optical detection and vacuum attenuation determination. This system can achieve local sealing of the anastomosis, identification of abnormal signals, and monitoring of catheter status.

The invention discloses a bile and pancreatic juice diversion catheter set which comprises guide wires (1), a diversion catheter (2), a pushing catheter (3) and an outer sheath tube (4), the diversion catheter (2) is installed at the head end in the outer sheath tube (4), one end of the pushing catheter (3) is inserted from the tail end of the outer sheath tube (4), the number of the guide wires (1) is two, and the number of the guide wires (1) is two. And the two guide wires penetrate through the shunting catheter (2) and the pushing catheter (3). The device can be arranged in the bile duct and the pancreatic duct, can block pancreatic-bile reflux, does not affect the normal physiological structure and function of the human body, and is suitable for all patients.

The utility model discloses an adjustable negative pressure pancreatic juice drainage device, which relates to the technical field of medical supplies and comprises a drainage main pipe, a plurality of drainage ports are arranged at the tail of the drainage main pipe, the head of the drainage main pipe is fixedly communicated with a flushing shunt pipe and a negative pressure connecting pipe, and a sputum suction pipe is inserted into an opening of the negative pressure connecting pipe. A connecting device is arranged between the negative pressure connecting pipe and the sputum suction pipe for limiting; the connecting device provided by the utility model is made of a disposable medical plastic material, is not easy to generate adverse reaction when being in contact with a human body, is high in sanitation and safety, is convenient to assemble and disassemble, can realize the fixed limiting of the sputum suction tube and the adjustment of the suction force of negative pressure drainage, and is high in practicability.

The application relates to the technical field of a biliopancreatic chronic disease remote cooperative management system, and particularly discloses a biliopancreatic chronic disease remote cooperative management system. The system comprises a medical image data acquisition unit, an individualized anatomical model construction unit, a biliopancreatic fluid dynamics simulation engine, a virtual intervention simulation unit, a risk early warning analysis unit and a remote cooperative diagnosis and treatment platform; a digital twin model of a biliopancreatic duct system of a patient is constructed, the biliopancreatic fluid flow state is simulated in combination with computational fluid dynamics, and virtual stent implantation and other intervention effect pre-performance are supported, so that identification of occult obstruction and quantitative evaluation of a treatment scheme are realized; the system also supports multi-territory expert cooperative consultation, dynamic model updating and risk grading early warning. Through the technical scheme, a leap from morphological diagnosis to functional diagnosis is realized, and early lesion detection rate, individualized diagnosis and treatment level and remote cooperation efficiency are improved.

The invention relates to the technical field of medical instruments, in particular to a pancreatic juice drainage tube flusher used after pancreas operation, which comprises a handle and a drainage tube, and further comprises a chip scraping assembly, the handle is connected with the drainage tube, the drainage tube comprises an inner tube and an outer tube, the inner tube is coaxially arranged in the outer tube, and the chip scraping assembly is arranged in the outer tube. The chip scraping assembly is arranged in the outer tube and connected with the lower ends of the inner tube and the outer tube, a plurality of side holes are formed in the circumferential side of the outer tube in a circumferential array mode, and when flushing fluid is conveyed from top to bottom in the inner tube and flushing fluid mixed with adipose tissue fragments is sucked into the outer tube through the side holes, the chip scraping assembly is impacted to rotate; when the scrap scraping assembly rotates, adipose tissue fragments at the outlet end of the side hole are scraped. Through the arranged scrap scraping assembly, normal discharge of flushing fluid is achieved on the basis of preventing the side holes from being blocked by fat fragments, and then the condition of a patient is prevented from being aggravated.