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    • 3. 发明授权
    • Facilitating endoscopy
    • 促进内镜检查
    • US5236423A
    • 1993-08-17
    • US895193
    • 1992-06-05
    • Thomas W. MixErnesto E. BlancoNorman RosskothenMaria L. HernandezGordon C. VineyardLiem T. Vu
    • Thomas W. MixErnesto E. BlancoNorman RosskothenMaria L. HernandezGordon C. VineyardLiem T. Vu
    • A61B1/31A61M25/00A61M25/01
    • A61B1/00151A61B1/31A61M25/0111A61M25/0009Y10S600/92
    • One aspect is a method for inserting an instrument into the gastrointestinal tract of a mammal, by emplacing at least a portion of a flexible liner to form within the intestine an inner tube within an outer tube, the inner tube defining a lumen lying within the intestine and having a distal end accessible via the anal opening from outside the body of the mammal, and thereafter passing the instrument into the lumen via its distal end. Another aspect is the combination of an elongate evertible liner, a liner support chamber having a proximal port and a distal port, the liner having its two ends attached respectively at the ports, and a pressurizer for increasing the pressure within the chamber to cause the liner to be everted, the liner comprising a material characterized by having a wall thickness to diameter ratio and a zero strain elasticity modulus whose product is less than 4.0 lb/inch.sup.2, preferably less than 1.0 lb/inch.sup.2, and a wall thickness to diameter ratio and a 100% strain modulus of elasticity whose product is greater than 0.5 lb/inch.sup.2, preferably greater than 2.0 lb/inch.sup.2. In another aspect, a layer of lubricous material, such as polyvinylpyrrolidone (PVP), is directly bonded to a surface of a layer of elastomeric material (such as polyurethane) without the use of adhesive materials between the layers. The resultant PVP-coated sheet is formed into the flexible liner. Yet another aspect is several devices for emplacing the liner in the intestine.
    • 一个方面是用于将器械插入哺乳动物的胃肠道中的方法,通过将至少一部分柔性衬垫放置在肠内,在内管内部形成内管,内管限定位于肠内的内腔 并且具有通过肛门开口从哺乳动物的身体外部接近的远端,然后经由其远端将器械通入内腔。 另一方面是细长的可翻转衬垫,具有近端口和远端口的衬垫支撑室的组合,衬垫的两端分别在端口附近,以及用于增加腔室内的压力以使衬垫 该衬垫包括材料,其特征在于具有壁厚与直径的比率和零应变弹性模量,其零度应变弹性模量小于4.0磅/英寸2,优选小于1.0磅/英寸2,壁厚比和 产品的100%应变弹性模量大于0.5磅/英寸2,最好大于2.0磅/英寸2。 另一方面,一层润滑材料,例如聚乙烯吡咯烷酮(PVP),直接粘合到一层弹性体材料(如聚氨酯)的表面,而不用层之间使用粘合剂材料。 所得到的PVP涂层片材形成柔性衬垫。 另一方面是用于在肠中放置衬垫的若干装置。
    • 8. 发明授权
    • Safety trocar with progressive cutting tip guards and gas jet tissue deflector
    • 安全套管针与渐进式切割护板和气体喷射组织导流板
    • US06497687B1
    • 2002-12-24
    • US09598453
    • 2000-06-22
    • Ernesto E. Blanco
    • Ernesto E. Blanco
    • A61M532
    • A61B17/3494A61B17/3417A61B17/3474A61B17/3496A61B2017/00424A61B2017/00544A61B2017/346A61B2090/0811
    • A surgical device for endoscopic surgical procedures capable of preventing injuries to internal organs during insertion. The surgical device can include one or more of the following: a multiple system of sharp blade edges, a mechanical tissue protection device that includes a series of thin plastic guards sliding along the sides of the planar knives and having an angle between their edges smaller than that of the cutting knife edges, one or more fixed conical deflectors to expand the cut tissue passage leaving the guards to contact tissue contact only at their tips, an insufflation passage configured to transport fluid into the body cavity during penetration, a locking system for the guards that prevents accidental reuse of the cutting features, and/or an ergonomic design which facilitates handling.
    • 用于内插式外科手术的手术装置,能够在插入期间防止内部器官的损伤。 手术装置可以包括以下中的一个或多个:锋利的刀片边缘的多重系统,机械组织保护装置,其包括沿着平面刀的侧面滑动的一系列薄塑料防护件,并且在它们的边缘之间具有小于 切割刀刃边缘的一个或多个固定的锥形偏转器以使切割的组织通道膨胀,留下护罩仅在其尖端处与组织接触接触,吹气通道构造成在穿透期间将流体输送到体腔中,用于 防止意外重复使用切割特征的防护装置和/或便于处理的人机工程学设计。
    • 10. 发明授权
    • Surgical stapling system
    • 手术吻合系统
    • US4969591A
    • 1990-11-13
    • US373622
    • 1989-06-27
    • William D. RichardsJohn C. MeadeErnesto E. Blanco
    • William D. RichardsJohn C. MeadeErnesto E. Blanco
    • A61B17/064A61B17/068
    • A61B17/0682A61B17/0644
    • A microsurgical stapling system for suturing delicate tissue. The system comprises a staple magazine and a stapler. The magazine has a framework to which a plurality of pre-formed staples are integrally attached in parallel, spaced-apart formation. The stapler comprises a housing, a staple support and ram assembly, a driver body and a driver assembly. The magazine is disposed within the housing and is advanced toward the staple support and ram assembly. The staple support and ram assembly comprises a front wall that engages the front edge of the leading staple in the magazine and a rear wall that engages the trailing edge of the leading staple, whereby the leading staple can be captivated between the front and rear walls. The front wall may not be movable; the rear wall is movable so that it can move down to engage the rear side of a staple which has just passed beneath the rear wall. The staple support and ram assembly also comprises a ram plate slidably mounted between the front and rear walls for driving the leading staple downwardly between the front and rear walls. An ejection slot is formed in the housing through which the leading staple is ejected into the tissue to be sutured. The rear wall and ram plate are coupled to and driven by the driver assembly. The driver assembly retracts the rear wall and ram plate from the inserted staple at the same time the assembly advances the staple magazine toward the front wall.
    • 用于缝合微细组织的显微手术吻合系统。 该系统包括钉仓和订书机。 杂志具有框架,多个预成形的订书钉以平行的间隔开的形式整体地附接到该框架上。 订书机包括壳体,订书钉支架和柱塞组件,驱动器主体和驱动器组件。 盒子被设置在壳体内并且朝向钉支撑件和柱塞组件前进。 订书钉支撑和柱塞组件包括前壁,其与钉仓中的引导钉的前边缘接合,后壁与主钉的后缘相接合,由此可将前导钉卡在前壁和后壁之间。 前壁可能不可移动; 后壁是可移动的,使得其可以向下移动以接合刚刚通过后壁的订书钉的后侧。 缝钉支撑和柱塞组件还包括可滑动地安装在前壁和后壁之间的柱塞板,用于在前壁和后壁之间向下驱动引导钉。 在壳体中形成有弹出槽,引导钉通过该排出口被喷射到待缝合的组织中。 后壁和柱塞板联接到驱动器组件并由驱动器组件驱动。 驱动器组件在插入的订书钉上缩回后壁和柱塞板,同时组装件将订书钉匣前进到前壁。