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公开(公告)号：US4465481A
公开(公告)日：1984-08-14
申请号：US371941
申请日：1982-04-26
申请人： Larry W. Blake
发明人： Larry W. Blake
CPC分类号： A61M25/0029 , A61M27/00 , A61M2025/0034 , A61M2025/004 , A61M25/003 , A61M25/0071
摘要： The present invention comprises both a single piece wound drain catheter and the die from which such a catheter is extruded. The wound drain catheter of the present invention comprises a single, continuous flexible elongate member having a drain segment, a transition tube segment, and an extrusion tube segment. The drain segment comprises a fluted body having one or more longitudinal lumens in fluid communication with the wound in which the drain segment is located. The transition tube segment has internal cavities opening at one end into the lumens of the drain segment and at the other end into the central longitudinal cavity of the tubular extension tube segment. At least a portion of the drain segment is formed of a radiopaque material. The extension tube segment is formed of a translucent material, as is the outer portion of the transition segment. The entire flexible member is preferably made from a silicone elastomer having sufficient elasticity to permit the cross-sectional area of the member to decrease by at least 30% when a pulling force is applied to it. The die of the present invention, which is used to make the catheter of the present invention, comprises a die nozzle with a die cavity, within which are one or more die forms or die mandrels. These die forms and die mandrels are movable within the die cavity while the drain catheter of the present invention is being extruded to change the cross section of the extruded parison, so the single piece drain catheter of the present invention can be formed in a single continuous extrusion process. Consideration of the various aspects of the drain and die of the present invention will reveal that the apparatus of the present invention may be used in a variety of settings other than the draining of bodily wounds.
摘要翻译： 本发明包括单片绕线排水导管和挤出这种导管的模具。 本发明的伤口排水导管包括具有排水段，过渡管段和挤压管段的单个连续的柔性细长构件。 排水段包括具有一个或多个纵向内腔的凹槽体，该纵向流体与排出段所在的伤口流体连通。 过渡管段具有在一端处于排水段的内腔中的内部空腔，另一端在管状延伸管段的中心纵向空腔中开口。 排水段的至少一部分由不透射线材料形成。 延伸管段由半透明材料形成，与过渡段的外部部分一样。 整个柔性构件优选地由具有足够弹性的硅氧烷弹性体制成，以允许当施加拉力时构件的横截面积减小至少30％。 用于制造本发明的导管的本发明的模具包括具有模腔的模头喷嘴，在模腔内具有一个或多个模具形状或模具芯棒。 这些模具形状和模具心轴可以在模腔内移动，同时本发明的排水导管被挤出以改变挤压型坯的横截面，因此本发明的单件式排水导管可以形成为单个连续的 挤出工艺。 考虑到本发明的排水管和管芯的各个方面将揭示出本发明的装置可以用于排除身体伤口以外的各种设置。
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公开(公告)号：US4446581A
公开(公告)日：1984-05-08
申请号：US295464
申请日：1981-09-02
申请人： Larry W. Blake
发明人： Larry W. Blake
CPC分类号： A61F2/16 , A61F2002/1681 , A61F2009/00887
摘要： An intraocular lens for implantation within an eye after cataract surgery, etc. The intraocular lens has a free-ended, compressible, sizing prong, which sizing prong in its natural uncompressed state has a preformed closed coil spring section between its ends. This intraocular lens with its sizing prong is particularly suited for implantation within the posterior chamber behind the iris where the sizing prong is outwardly biased against the ciliary sulcus area of the eye to hold the intraocular lens in proper viewing position.
摘要翻译： 在白内障手术后眼内植入人工晶状体等。眼内透镜具有自由端，可压缩的上胶头，其自然未压缩状态的钉头具有在其端部之间的预制闭合螺旋弹簧部分。 这种具有其尺寸插脚的眼内透镜特别适用于在虹膜后面的后室中植入，其中，尺寸尖端向外偏压抵靠眼睛的睫状沟沟区域，以将眼内透镜保持在适当的观察位置。
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公开(公告)号：US4429693A
公开(公告)日：1984-02-07
申请号：US187711
申请日：1980-09-16
IPC分类号： A61M1/00
CPC分类号： A61M1/0011 , A61M1/0005
摘要： A flexible, compressible reservoir draws a substantially constant vacuum to permit uniform removal of fluid from a surgical incision through a wound drain catheter. The reservoir includes a compression spring interposed between a pair of congruent articulated plates. The spring provides biasing force to expand the reservoir and create a vacuum therein. Each of the articulated plates has a central member hinged on opposite sides to wing members. As the reservoir expands, the wing members pivot relative to the central members to decrease the effective area to which the spring force is applied. Such decrease in the effective area permits the spring force per unit of area to remain more nearly constant, and thus, reduces changes in reservoir vacuum.
摘要翻译： 灵活的可压缩储存器抽取基本恒定的真空，以允许通过伤口排水导管从外科切口均匀地去除流体。 储存器包括插入在一对相关铰接板之间的压缩弹簧。 弹簧提供偏压力以膨胀储存器并在其中产生真空。 每个铰接板具有铰接在翼构件的相对侧上的中心构件。 当储存器膨胀时，翼构件相对于中心构件枢转以减小施加弹簧力的有效面积。 有效面积的这种下降允许每单位面积的弹簧力保持更接近恒定，从而减少储层真空的变化。
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公开(公告)号：US4398910A
公开(公告)日：1983-08-16
申请号：US238640
申请日：1981-02-26
CPC分类号： A61M27/00 , A61M25/0071 , A61M2025/0034 , A61M2025/004 , A61M25/003
摘要： The wound drain catheter of the present invention is comprised of a drain portion connected to an outflow tube portion. The drain portion comprises a central core with plural T-shaped members projecting therefrom to form plural lumens having respective longitudinal grooves for fluid communication with the wound. This drain has a uniform cross-sectional area and is preferably made from a silicone elastomer having a durometer shore between 40 and 70 shore A. Such uniform cross-sectional area provides added strength to prevent the drain from breaking during its removal from the patient's body, and the silicone elastomer provides sufficient elasticity to permit the cross-sectional area of the drain to decrease by at least 30 percent when a pulling force is applied thereto, thereby reducing the gripping force of tissue surrounding the wound.
摘要翻译： 本发明的伤口排水导管包括连接到流出管部分的排水部分。 排水部分包括具有从其突出的多个T形构件的中心芯，以形成具有用于与伤口流体连通的各个纵向凹槽的多个腔。 该排水管具有均匀的横截面积，并且优选由具有40至70海岸A之间的硬度岸的硅氧烷弹性体制成。这种均匀的横截面面积提供附加的强度，以防止排出物在其从患者身体移除期间断裂 ，并且硅氧烷弹性体提供足够的弹性，以允许当施加拉力时排水管的横截面积至少减少30％，从而减少围绕伤口的组织的夹持力。
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