Endoscopic placement of nasoenteric feeding tubes is a common technique used in clinical practice. However, use of the endoscopic “ drag and pull" method to pull the tube into position by grasping the feeding tu...Endoscopic placement of nasoenteric feeding tubes is a common technique used in clinical practice. However, use of the endoscopic “ drag and pull" method to pull the tube into position by grasping the feeding tube with a biopsy forceps requires considerable skill. In this paper, we describe a modified suture, which markedly diminishes the technical difficulty for nasoenteric feeding tube place ment. Patients admitted to the intensive care unit, with evidence of impaired ga stric emptying, referred for placement of a nasoenteric tube, were included in t his study. A modification of the feeding tube was made by securing two strands o f nylon suture to the tip of a 12- Fr feeding tube. Three knots were made along the sutures on both sides. The feeding tube was introduced through the nose and passed into the stomach. Then, placement of the nasoenteric tube was attempted by an endoscopic “ drag and pull" method. Eighty- six patients (49% male, me an age of 60 years) underwent 94 procedures for attempted nasoenteric feeding tu be placement. Feeding tubes were placed successfully in 91 of 94 (97% ) procedu res in these patients. The procedures required an average time of range 5 to 14 minutes, and no major complications were incurred. These results indicate that a modified suture tied to the tip of a nasoenteric feeding tube reduces the techn ical difficulty of the procedure and facilitates rapid successful placement into the small bowel.展开更多
Rapid prototyping technology can greatly improve the actual processing industrial prototype; this paper introduces the main principle, characteristics and technology of rapid prototype manufacturing. The current rapid...Rapid prototyping technology can greatly improve the actual processing industrial prototype; this paper introduces the main principle, characteristics and technology of rapid prototype manufacturing. The current rapid prototype manufacturing products and production problems are analyzed. Because of the direct metal forming process have the characteristic of point by point, surfacing with stack molding manufacturing layer by layer, so it is suitable for complex shape parts two-dimensional or three-dimensional functionally gradient materials manufacturing.展开更多
文摘Endoscopic placement of nasoenteric feeding tubes is a common technique used in clinical practice. However, use of the endoscopic “ drag and pull" method to pull the tube into position by grasping the feeding tube with a biopsy forceps requires considerable skill. In this paper, we describe a modified suture, which markedly diminishes the technical difficulty for nasoenteric feeding tube place ment. Patients admitted to the intensive care unit, with evidence of impaired ga stric emptying, referred for placement of a nasoenteric tube, were included in t his study. A modification of the feeding tube was made by securing two strands o f nylon suture to the tip of a 12- Fr feeding tube. Three knots were made along the sutures on both sides. The feeding tube was introduced through the nose and passed into the stomach. Then, placement of the nasoenteric tube was attempted by an endoscopic “ drag and pull" method. Eighty- six patients (49% male, me an age of 60 years) underwent 94 procedures for attempted nasoenteric feeding tu be placement. Feeding tubes were placed successfully in 91 of 94 (97% ) procedu res in these patients. The procedures required an average time of range 5 to 14 minutes, and no major complications were incurred. These results indicate that a modified suture tied to the tip of a nasoenteric feeding tube reduces the techn ical difficulty of the procedure and facilitates rapid successful placement into the small bowel.
文摘Rapid prototyping technology can greatly improve the actual processing industrial prototype; this paper introduces the main principle, characteristics and technology of rapid prototype manufacturing. The current rapid prototype manufacturing products and production problems are analyzed. Because of the direct metal forming process have the characteristic of point by point, surfacing with stack molding manufacturing layer by layer, so it is suitable for complex shape parts two-dimensional or three-dimensional functionally gradient materials manufacturing.
