公开(公告)号：US5843173A

公开(公告)日：1998-12-01

申请号：US844482

申请日：1997-04-18

Applicant: Donald Shannon ,  John McIntyre ,  Chris Kuo ,  Chris McCollam ,  Robert Peterson

Inventor： Donald Shannon ,  John McIntyre ,  Chris Kuo ,  Chris McCollam ,  Robert Peterson

IPC: A61F2/06 ,  B29D23/00

CPC classification number: B29D23/001 ,  A61F2/06 ,  Y10S623/901

Abstract: A method for improving the radial enlargeability and other properties of tape-reinforced tubular vascular graft formed of sintered fluoropolymer(s), such as expanded, sintered PTFE. Broadly, the method comprises the step of radially shrinking the reinforcement tape layer of the graft, or the entire tape-reinforced graft, after sintering thereof. Such radial shrinkage of the reinforcement tape layer, or of the entire graft, renders the graft subsequently radially enlargeable by more than 5%, without tearing or breaking of the reinforcement tape layer of the graft. Radially enlargeable grafts of the present invention may be combined with various types of stents or anchoring systems, to form endovascular graft devices which are transluminally insertable and implantable within the lumen of a host blood vessel. Alternatively, radially enlargeable grafts of the present invention may be implanted by way of traditional surgical graft implantation techniques, without any radial enlargement of the graft at the time of implantation, so as to take advantage of the improved strength properties and suture-holding properties of the radially-shrunken tape-reinforced grafts of the present invention.

Abstract translation: 一种用于改善由烧结的氟聚合物形成的带状增强的管状血管移植物的径向扩大性等的方法，例如膨胀的烧结PTFE。 广泛地，该方法包括在烧结之后径向收缩移植物的加强带层或整个带增强移植物的步骤。 增强带层或整个移植物的这种径向收缩使得移植物随后可以径向放大超过5％，而不会撕裂或破坏移植物的加强带层。 本发明的可径向扩大的移植物可以与各种类型的支架或锚定系统组合，以形成血管内移植装置，其可平移插入并且可植入主体血管的腔内。 或者，本发明的径向可放大的移植物可以通过传统的手术移植物植入技术植入，而在植入时没有移植物的任何径向扩大，以便利用改进的强度性质和缝线保持性能 本发明的径向缩小的带状增强移植物。

公开(公告)号：US5336237A

公开(公告)日：1994-08-09

申请号：US111984

申请日：1993-08-25

Applicant: Albert K. Chin ,  John McIntyre ,  Stephen A. Morse

Inventor： Albert K. Chin ,  John McIntyre ,  Stephen A. Morse

IPC: A61B17/00 ,  A61B17/22 ,  A61B17/32

CPC classification number: A61B17/3207 ,  A61B17/00234 ,  A61B17/320016 ,  A61B2017/00287 ,  A61B2017/00685 ,  A61B2017/320775

Abstract: A method and system for removing an organ or piece of tissue severed from its supporting tissue within a patient's body cavity, such as the abdominal cavity, which includes an elongated expandable tubular member with a sealed interior. In one preferred embodiment for morcellation, means are provided within the sealed interior to tear or cut off tissue fragments from the organ or tissue which are small enough to pass out of the patient's body cavity through an inner lumen of an exit trocar sheath disposed within the patient and in communication with the body cavity. The organ or piece of tissue is placed within an inner lumen defined by the sealed interior through an opening provided in a leading portion of the elongated expandable tubular member. The organ or piece of tissue is fragmented into smaller pieces which are withdrawn from the patient's body cavity by the passage of the morcellation system through the inner lumen of the exit trocar sheath. In one embodiment of the morcellation system, one or more elongated cutting strips are disposed within the inner lumen defined by the sealed interior and secured to the lining to cut or tear the tissue into small fragments. In another embodiment of the invention one or more elongated helical ribbons are provided to cut or tear the tissue into small fragments.

Abstract translation: 一种用于去除患者体腔（例如腹腔）内的其支撑组织切除的器官或系统的方法和系统，其包括具有密封内部的细长可扩张管状构件。 在一个优选的实施方式中，在密封的内部设置有用于撕开或切断器官或组织的组织碎片的装置，该器官或组织足够小以通过设置在内部的出口套管针护套的内腔 患者和身体的沟通。 器官或组织被放置在由密封内部限定的内腔内，通过设置在细长可扩张管状构件的引导部分中的开口。 器官或组织碎片被分割成较小的片，其通过穿过出口套管针鞘的内腔而从患者体腔抽出。 在切割系统的一个实施例中，一个或多个细长切割条设置在由内部限定的内腔内并固定到衬里上以将组织切割或撕裂成小碎片。 在本发明的另一个实施例中，提供一个或多个细长螺旋带以将组织切割或撕裂成小碎片。