A surgical sheath adapted for use in the nasal cavity has an elongated hollow body made of a braided material having interstitial spaces with a dimension of 0.25 mm to 1.50 mm. The interstitial spaces filled with a filling material, such as silicone. The sheath has a low profile configuration during placement into the naris, and may be stretched into an expanded configuration. In methods of placing the sheath in the naris, the sheath is folded and then pulled into the naris using a surgical tool.

A cannula for providing a pathway for surgical instruments in a minimally invasive procedure having a flexible body portion having a flexible flange extending radially outwardly from the distal region of the flexible body portion. A first seal is positioned within the body portion to prevent egress of fluids from the body of the patient. A rigid ring is positioned at the distal region of the body portion, the ring having an opening dimensioned to receive at least a distal portion of an obturator tip therethrough and a surface surrounding the opening in the ring onto which at least a portion of the obturator contacts to prevent further passage of the obturator.

A surgical instrument kit for spinal fusion. The instrument kit includes a curved trocar (10), a flexible cannula (30) for positioning over the curved trocar, a flexible rasp device (70), and a bone graft delivery container (90).

A device and method are disclosed for an elastic strip with a first fixed end and a second movable end, the elastic strip configured to be in at least one of a tense state and an elastic state. A release mechanism is configured to maintain the elastic strip in a tense state when the release mechanism is in a holding state, and configured to release the elastic strip when in a release state. A needle path with a first bend is provided. A rigid needle is configured to traverse a first portion of the needle path when the elastic strip is in the elastic state and a cannula is located in the needle path and configured to traverse a second portion of the needle path when the rigid needle traverses the first portion of the needle path.

A cannula for use in a surgical procedure includes a tubular shaft and a tether coupled to a distal end portion of the tubular shaft. The distal end portion of the tubular shaft is configured to turn inside out in response to a threshold proximally-oriented force applied to the tether. Sections of the distal end portion may break apart or separate from one another about a groove formed in the tubular shaft.

A device for removing fat from a body can include a pair of nested hollow members that each has at least one opening and an adjustment means for adjusting the orientation of the nested hollow members from a first configuration to a second configuration to change an amount of overlap between openings in the nested hollow members. The nested members can be deformable to change the shape of the openings.

A method of accessing a target site within the brain of a patient, through the skull of the patient, with an expandable cannula.

An example assembly for use with a vacuum system and an esophageal positioning device esophageal positioning device includes an introducer, in which the esophageal positioning device includes a first segment and a second segment. The second segment is pivotally connected to the first segment. A gap portion of an outer tube of the introducer is defined along a longitudinal axis between a tube tip of the introducer and the distal end of the second segment of the esophageal positioning device when the esophageal positioning device is disposed within the introducer. The gap portion defines one or more radial vacuum holes.

An integrated sheath assembly for inserting f a medical device such as a percutaneous pump into a vessel can include a first sheath having a first lumen defining a first opening between proximal and distal ends of the first sheath for passage of a portion of the pump and a second sheath having a second lumen defining a second opening between proximal and distal ends of the second sheath. The second lumen is expandable to allow passage of the first sheath containing the portion of the pump. The first sheath fills a space between the second sheath and the portion of the percutaneous pump when the first sheath containing the percutaneous pump is inserted into the second lumen. The first sheath has a first hub, and the second sheath has a second hub. In some embodiments, a single sheath and a movable connector can be integrated on the medical device.

A valve assembly for instruments and/or guide wires for use as access/tool port includes a cannula attached to a valve housing with a through hole. Elastic valve members are housed in the valve housing for sealing the through hole either when no device is inserted, or when a specific device with a compatible cross section is inserted. A further sealing arrangement is housed in the valve housing. The further sealing arrangement is extendable within the valve housing to selectively reduce the width of the through hole from a non-sealed configuration where one generic device or a group of generic devices, not necessarily having the same size and/or shape, can be inserted into and/or removed from the through hole, to a sealed configuration where the sealing arrangement seals the through hole with the generic device or the group of generic devices inserted into the through hole.