发明申请
US20090182274A1 SYRINGE WITH ALIGNMENT FLANGE AND EXPANSION SECTION WITH REDUCED WALL THICKNESS
有权
具有对准法兰和膨胀部分的减少壁厚的SYRINGE
- 专利标题: SYRINGE WITH ALIGNMENT FLANGE AND EXPANSION SECTION WITH REDUCED WALL THICKNESS
- 专利标题(中): 具有对准法兰和膨胀部分的减少壁厚的SYRINGE
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申请号: US12408914申请日: 2009-03-23
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公开(公告)号: US20090182274A1公开(公告)日: 2009-07-16
- 发明人: Ralph H. Schriver , Michael A. Spohn , Thomas P. Joyce , Herbert M. Grubic , John A. Haury
- 申请人: Ralph H. Schriver , Michael A. Spohn , Thomas P. Joyce , Herbert M. Grubic , John A. Haury
- 申请人地址: US PA Indianola
- 专利权人: MEDRAD, Inc.
- 当前专利权人: MEDRAD, Inc.
- 当前专利权人地址: US PA Indianola
- 主分类号: A61M5/315
- IPC分类号: A61M5/315
摘要:
A syringe includes a cylindrical body having a distal end and a proximal end, an injection section at the distal end and an expansion section at the proximal end, the injection section and the expansion section being connected by a cylindrical center section of relatively uniform outer diameter. The injection section includes a conical portion and an injection neck, the conical portion including an alignment flange extending outward from at least a portion of the conical portion. The syringe further includes a plunger movably received in the body and having a coupling end with a pair of flexible coupling members defining a slot therebetween for engaging a drive piston of an injector, the slot being substantially aligned with the alignment flange such that the alignment flange provides an indication of the orientation of the slot, the plunger seated for storage in the expansion section. A syringe has a reduced wall thickness at the expansion section such that an inner diameter of the expansion section is larger than the inner diameter of the center section for allowing the expansion section to expand under radial outward force exerted by the plunger.