Abstract:
Oxygen-scavenging polymers and packaging for holding oxygen-sensitive products. A heat treatment process has been found to significantly increase the oxygen-scavenging performance of the polymer. The enhanced scavenging polymer can be effectively incorporated into various packaging, including transparent multilayer containers for beer and juice. In one embodiment, a multilayer package made from the scavenger provides an actual reduction in oxygen content of a contents of the package, over a long period of time (e.g., 24 weeks). The package can be stored unfilled for an extended period (without significant loss of scavenging capability) and will scavenge substantially immediately upon filling with a liquid product. The package may incorporate a relatively low weight percentage of the scavenger, thus providing enhanced scavenging in a cost-effective manner.
Abstract:
Describeed is a full-thickness resection system which includes a control unit coupled to a proximal end of a flexible endoscope. The control unit remains outside of a body when the stapling head is in an operative position within a body lumen. The control unit includes (i) an anvil actuator coupled to an anvil in the stapling head, actuation of the anvil actuator moves the anvil axially relative to a stapling mechanism in the stapling head to compress a folded full-thickness portion of lumenal tissue between the anvil and the stapling mechanism. In addition, the control unit includes (ii) a stapler actuator coupled to the stapling mechanism in the stapling head, actuation of the stapler actuator causing the stapling mechanism to drive staples through the folded lumenal tissue against the anvil. Also, the control unit includes (iii) a tissue cutter actuator coupled to a tissue cutter in the stapling head, actuation of the tissue cutter actuator causing the tissue cutter to resect portions of the folded lumenal tissue.
Abstract:
A proximal housing for a full-thickness resection device (FTRD) is provided with a plurality of chambers through which fasteners are introduced into a portion of tissue to be resected. The proximal housing has a noncircular cut-out opposite the plurality of chambers to receive a noncircular endoscope. The proximal housing also is provided with a resection cavity into which the tissue to be resected is to be received. In addition, shaft openings are provided through which mounting shafts may be inserted. A noncircular endoscope is also disclosed for insertion into the cut-out whereby the endoscope has passages to house the functions of remote viewing, illumination, insufflation and irrigation.
Abstract:
A system including an implantable fastener for fastening layers of tissue is disclosed. In one embodiment, the fastener includes a proximal anchor member and a distal anchor member each being movable from a reduced profile position to a deployed position. The anchor members are mesh structures capable of moving to the deployed position by reducing the axial spacing between opposite ends of the anchor members. Methods of treating gastroesophageal reflux disease (GERD) are also disclosed. One of the methods includes placing the distal anchor member through a hole formed in the wall of the esophagus and through a hole formed in the gastric wall. The distal anchor member and the proximal anchor member are then placed in their deployed positions to fasten the wall of the esophagus and the gastric wall together between the anchor members.
Abstract:
A distal assembly of an endoscopic surgical device, and a related method, having a first arm and a second arm pivotal relative to the first arm. Each arm is configured to hold a part of a two-part fastener at a distal end of the arm. A closing mechanism is positioned proximate a proximal end of each of the first and second arms opposite the distal end of each of the first and second arms. The dosing mechanism is configured to move in relation to the first and second arms so as to close over at least one of the first and second arms to cause the distal ends of the arms to come together. An actuation member is also attached to the closing mechanism actuable to cause the closing mechanism to move in relation to the first and second arms.
Abstract:
A system including an implantable fastener for fastening layers of tissue is disclosed. In one embodiment, the fastener includes a proximal anchor member and a distal anchor member each being movable from a reduced profile position to a deployed position. The anchor members are mesh structures capable of moving to the deployed position by reducing the axial spacing between opposite ends of the anchor members.Methods of treating gastroesophageal reflux disease (GERD) are also disclosed. One of the methods includes placing the distal anchor member through a hole formed in the wall of the esophagus and through a hole formed in the gastric wall. The distal anchor member and the proximal anchor member are then placed in their deployed positions to fasten the wall of the esophagus and the gastric wall together between the anchor members.
Abstract:
A controllable sheath for optimizing the control of surgical instruments at the operation site includes a flexible sheath surrounding an endoscope and including a lumen extending along the walls of the sheath and adjacent to the endoscope. The lumen permits the passage of surgical instruments from the proximal end of the endoscopic device to the operation site. The lumen extends beyond the distal end of the endoscope and deflects at the distal end as desired by the operator's manipulation of a controller device. This distal end deflection may occur through various different techniques where the ability to deflect the lumen gives the operator increased control and maneuverability over the surgical implements located in the lumen. Depending upon the particular requirements of the surgical procedure, the controllable sheath may include any number of lumens capable of distal end deflection.
Abstract:
Clips having pseudoelastic properties at body temperature are used to cause hemostatis of blood vessels located along the gastrointestinal tract. Methods for causing the hemostasis of blood vessels and ulcer beds using the clips of the present invention are also disclosed.
Abstract:
Medical devices and methods used to cause hemostasis of blood vessels located along the gastrointestinal tract. The medical devices include a clip having a stem, an anchor at a first end of the stem and a bolster at or near a second end of the stem. Methods of deploying the medical devices are disclosed.
Abstract:
A system including an implantable fastener for fastening layers of tissue is disclosed. In one embodiment, the fastener includes a proximal anchor member and a distal anchor member each being movable from a reduced profile position to a deployed position. The anchor members are mesh structures capable of moving to the deployed position by reducing the axial spacing between opposite ends of the anchor members.Methods of treating gastroesophageal reflux disease (GERD) are also disclosed. One of the methods includes placing the distal anchor member through a hole formed in the wall of the esophagus and through a hole formed in the gastric wall. The distal anchor member and the proximal anchor member are then placed in their deployed positions to fasten the wall of the esophagus and the gastric wall together between the anchor members.