Operating channel/insufflation port assemblies
    1.
    发明授权
    Operating channel/insufflation port assemblies 失效
    操作通道/吹气口组件

    公开(公告)号:US5226876A

    公开(公告)日:1993-07-13

    申请号:US837862

    申请日:1992-02-18

    Abstract: Operating channel/insufflation port assemblies are disclosed herein which facilitate the operation of percutaneous surgical procedures with remotely operable instrumentation. In one of the disclosed assemblies, an operating channel/insufflation port member defines an operating channel sized to receive remotely operable instrumentation, and an insufflation lumen. The port assembly is anchorable in place, extending percutaneously into the stomach with remotely operable instrumentation being advanceable through the operating channel and into the stomach, and with CO.sub.2 being passable into the stomach through the insufflation lumen. An insufflation valve member, connectable to said insufflation port, provides means for variably controlling the supply of CO.sub.2 into the stomach while a sealing member prevents gas leakage through the operating channel during operation/insufflation by providing a seal between the port member and the remotely operable instrumentation received therethrough.In a second disclosed assembly, the operating channel/insufflation port member defines an operating channel sized to receive remotely operable instrumentation, and a dual purpose inflation/insufflation lumen. The port assembly is anchorable in place by a balloon which is inflatable through the inflation/insufflation lumen. After the balloon has been inflated, an inflation/insufflation tube within the inflation/insufflation lumen is advanced to seal the inflated balloon and open an insufflation port, through which a positive pressure may be maintain within the stomach during a subsequent surgical procedure performed through the operating channel. Also provided are a set of seals which prevent gas leakage both during and after operation/insufflation.

    Abstract translation: 本文公开了操作通道/吹入口组件,其通过远程可操作的仪器便于经皮外科手术的操作。 在所公开的组件中的一个中,操作通道/吹入口构件限定尺寸适于接收可远程操作的仪器的操作通道和吹气腔。 端口组件可固定到位,通过远程可操作的仪器经皮操作通过操作通道进入胃,并且CO 2可通过吹入腔通过胃。 可连接到所述吹入口的吹入阀构件提供用于可变地控制向胃中供应CO 2的装置,同时密封构件通过在端口构件和可远程操作的位置之间提供密封来防止气体在操作/吹入期间通过操作通道泄漏 仪器接收通过。 在第二个公开的组件中,操作通道/吹入口构件限定尺寸适于接收可远程操作的仪器的操作通道以及双重目的的充气/吹入腔。 端口组件可通过气囊可靠地固定在适当的位置,气球可以通过充气/吹气腔充气。 在球囊膨胀之后,进入充气/吹入腔内的充气/吹入管,以密封膨胀的气囊并打开吹入口,在随后的外科手术过程中,通过该口可以在胃内保持正压力 操作通道。 还提供了一组在操作/吹气期间和之后防止气体泄漏的密封件。

    Method for esophageal invagination and devices useful therein
    2.
    发明授权
    Method for esophageal invagination and devices useful therein 失效
    用于食管诱发的方法及其有用的装置

    公开(公告)号:US5088979A

    公开(公告)日:1992-02-18

    申请号:US608339

    申请日:1990-11-02

    Abstract: A technique for invaginating the esophagus at the gastroesophageal junction is disclosed, as well as an invagination device useful in the described technique. The invagination device includes an introducer guide which has an outside diameter approximating that of the esophagus and a plurality of needle-receiving lumens extending to its outer diametric surface. The invagination device also has an engagement assembly which includes 10 needles, each having a retracted position in which they lie within the needle-receiving lumens of the introducer guide, and an extended position in which they extend out of the lumens and project radially from the guide for engagement with the esophagus at the gastroesophageal junction. The invagination device is introduced transorally into the esophagus, its engagement assembly is activated to place the needles in their extended position in engagement with the esophagus, and the engaged invagination device is advanced the toward the stomach to fold the attached esophagus beyond the gastroesophageal junction. A remotely operable fastening assembly, which has been introduced into the stomach through an operating channel/insufflation port, is then operated to fasten the invaginated gastroesophageal junction to the surrounding involuted fundic wall. Finally, the needles are retracted back into their needle-receiving lumens and the invagination device and the fastening assembly are removed from the body of the patient. This minimally-invasive technique accomplishes the formation of a new valve between the esophagus and stomach, thus preventing acid reflux.

    Gastrostomy feeding ports with positively sealing entrance valves
    4.
    发明授权
    Gastrostomy feeding ports with positively sealing entrance valves 失效
    胃肠造口喂养口具有正密封进口阀

    公开(公告)号:US5716347A

    公开(公告)日:1998-02-10

    申请号:US441054

    申请日:1995-05-15

    Abstract: Gastrostomy feeding ports are disclosed which remain positively sealed after repeated and extensive use. In one embodiment, a valve housing defines an inner passageway to provide fluid communication into a long term indwelling catheter and includes a rigid compression collar portion which defines a valve member receiving cavity within the inner passageway. The resilient valve member has an outer peripheral edge which generally conforms in shape to the valve member receiving cavity but is larger in dimension than the cavity when uncompressed. The resilient valve member also includes an outer wall portion which extends away from the outer peripheral edge of the diaphragm portion and which generally conforms in shape to the cavity. The resilient valve member is compressively fitted within the receiving cavity by the advancing of the outer wall portion into said cavity to thereby cause the outer peripheral edge to be compressed in dimension to fit within the cavity, with the compression collar pressing inwardly against the outer peripheral edge of the diaphragm portion to apply laterally compressive forces which bias the slit toward a normally closed position. Additional embodiments are disclosed which provide for the direct conversion of an implanted PEG tube into a low profile feeding port, and which further provide for the direct secure connection to an enteral feeding tube adapter.

    Abstract translation: 公开了胃肠造口供给口,其在重复和广泛使用后保持积极密封。 在一个实施例中,阀壳体限定内部通道以提供流体连通到长期留置导管中,并且包括在内部通道内限定阀构件接收空腔的刚性压缩套环部分。 弹性阀构件具有大致与阀构件接收腔形状一致的外周边缘,但是当未压缩时尺寸大于空腔的尺寸。 弹性阀构件还包括外壁部分,该外壁部分远离隔膜部分的外周边缘延伸,并且大致与形状相一致。 弹性阀构件通过外壁部分前进到所述空腔中而被压缩地装配在容纳空腔内,从而使得外周边缘的尺寸被压缩以适应于空腔内,其中压缩套环向内压靠外周边 边缘,以施加横向压缩力,其将狭缝偏向正常关闭位置。 公开了另外的实施方案,其提供将植入的PEG管直接转化成低轮廓进料口,并进一步提供与肠内给药管适配器的直接安全连接。

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