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公开(公告)号：US5759179A
公开(公告)日：1998-06-02
申请号：US777897
申请日：1996-12-31
申请人： Daniel J. Balbierz
发明人： Daniel J. Balbierz
CPC分类号： A61M25/0606 , A61M25/0662 , A61M25/065
摘要： A needle assembly for use with a catheter. The needle assembly includes a valve disposed in a first shaft; the valve seals, when closed, fluid flow from a first side of the valve to a second side of the valve. The needle assembly further includes a needle system having a second shaft disposed parallel to the first shaft. The second shaft has a first dimension at a first position on the second shaft and has a second dimension at a second position on the second shaft. The second position corresponds to a position of the valve when the needle system is inserted into the valve such that the second position aligns with the position of the valve. In this manner, the valve is stressed less during storage when the needle system remains inserted through the valve. The valve is typically part of an introducer member which includes the first shaft and a flexible sheath which encloses a portion of the second shaft of the needle system.
摘要翻译： 用于导管的针组件。 针组件包括设置在第一轴中的阀; 阀密封，当关闭时，流体从阀的第一侧流到阀的第二侧。 针组件还包括具有平行于第一轴设置的第二轴的针系统。 第二轴在第二轴上的第一位置具有第一尺寸，并且在第二轴上的第二位置具有第二尺寸。 第二位置对应于当针系统插入阀中时阀的位置，使得第二位置与阀的位置对准。 以这种方式，当针系统保持插入通过阀时，在储存期间阀被应力较小。 该阀通常是导引器构件的一部分，其包括第一轴和围绕针系统的第二轴的一部分的柔性护套。
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公开(公告)号：US5755693A
公开(公告)日：1998-05-26
申请号：US389294
申请日：1995-02-16
申请人： Jack M. Walker , Daniel J. Balbierz , George Tsai
发明人： Jack M. Walker , Daniel J. Balbierz , George Tsai
CPC分类号： A61M39/06 , A61M25/0668 , A61M2039/0633 , A61M2039/064 , A61M2039/0653 , A61M2039/0686
摘要： An apparatus is provided for facilitating substantially bloodless insertion into and withdrawal from a patient's body of a longitudinal member having a proximal end portion and having a distal end portion which is adapted to extend into the patient's body. The apparatus comprises a longitudinally extending sleeve having proximal and distal end portions and defining a lumen extending there along. The longitudinal member is positioned along the lumen. The sleeve has a line extending longitudinally along it which is either split or splittable so that the sleeve can be separated along the line for removal from about the longitudinal member while the distal end portion of the longitudinal member remains extended into the patient. A valve structure serves for preventing blood flow through the lumen. An access is present for allowing substantially bloodless insertion and withdrawal of the longitudinal member through the lumen.
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公开(公告)号：US4840613A
公开(公告)日：1989-06-20
申请号：US186560
申请日：1988-04-27
申请人： Daniel J. Balbierz
发明人： Daniel J. Balbierz
CPC分类号： A61M25/0612 , A61M5/158 , A61M39/1011
摘要： An improvement in a catheter assembly including a cannula, an inserter having a guide channel therethrough in which the cannula slidably fits and a hub structure with the cannula proximal end portion attached to the hub structure. The improvement includes a sheath having a longitudinal slit or weakened portion and being about the cannula between the inserter and the hub structure. A sheath stripping construction carried by the inserter strips the sheath from about the cannula as the cannula slides distally through the guide channel. A first lock member is carried by the inserter and an interlocking second lock member is located about the cannula between the inserter and the hub structure. The cannula is protected from contamination and from kinking and a positive lock serves to prevent its accidental withdrawal. A method of inserting a cannula using such an assembly is likewise set forth.
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