Developing type degradable restoration pancreatic duct bracket
A pancreatic duct and contrast agent technology, applied in the field of developing degradable pancreatic duct stents, can solve the problems of inability to understand the shape and position of implanted materials, vulnerable tissue of patients, low electron density, etc., and achieve controllable degradation time. , reduce scarring, promote healing and repair effect
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Embodiment 1
[0057] Example 1 Preparation method of developing-type degradable repair of pancreatic duct
[0058] Extrusion threaded pipe: Extrusion complete set of equipment includes extruder, traction device, sizing device, cooling device and supporting equipment. Extrusion temperature: 150°C. The extrusion material is a biodegradable material: polylactic acid-polyglycolic acid copolymer (PLGA). The pitch of the thread groove is: 10mm.
[0059] Cooling: cooling by air cooling.
[0060] Guachuang coating: through automatic dispensing machine and other equipment, glue is applied to the spiral groove of the outer wall of the threaded pipe, dried, washed with absolute ethanol, dried, and the healing and repairing functional material is a colloid solution made of polysaccharide .
[0061] The preparation method of the healing and repairing functional material is as follows: weigh 50g of chitosan powder, put it into a glass reaction vessel, add 130mL of propionic anhydride solution of acyl...
Embodiment 2
[0069] Example 2 Preparation method of developing-type degradable repair of pancreatic duct
[0070] Extrusion threaded pipe: Extrusion complete set of equipment includes extruder, traction device, sizing device, cooling device and supporting equipment. Extrusion temperature: 150°C. The extrusion material is a biodegradable material: polylactic acid-polyglycolic acid copolymer (PLGA). The pitch of the thread groove is: 10mm.
[0071] Cooling: cooling by air cooling.
[0072] Guachuang coating: through automatic dispensing machine and other equipment, glue is applied to the spiral groove of the outer wall of the threaded pipe, dried, washed with absolute ethanol, dried, and the healing and repairing functional material is a colloid solution made of polysaccharide .
[0073] The preparation method of the healing and repairing functional material is as follows: weigh 50g of chitosan powder, put it into a glass reaction vessel, add 130mL of propionic anhydride solution of acyl...
Embodiment 3
[0081] Example 3 Preparation method of developing-type degradable repair of pancreatic duct
[0082] Extrusion threaded pipe: Extrusion complete set of equipment includes extruder, traction device, sizing device, cooling device and supporting equipment. Extrusion temperature: 150°C. The extrusion material is a biodegradable material: polylactic acid-polyglycolic acid copolymer (PLGA). The pitch of the thread groove is: 10mm.
[0083] Cooling: cooling by air cooling.
[0084] Guachuang coating: through automatic dispensing machine and other equipment, glue is applied to the spiral groove of the outer wall of the threaded pipe, dried, washed with absolute ethanol, dried, and the healing and repairing functional material is a colloid solution made of polysaccharide .
[0085] The preparation method of the healing and repairing functional material is as follows: weigh 50g of chitosan powder, put it into a glass reaction vessel, add 130mL of propionic anhydride solution of acyl...
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