摘要:
A trocar for performing a procedure on a patient. The trocar has a hollow cannula with a distal end and a proximal end. The trocar also has a housing with a distal end attached to the proximal end of the cannula and a proximal end having a wall attached thereto. The wall has an aperture therethrough. The trocar further includes a seal assembly disposed within the housing. The seal assembly includes a first substantially rigid ring, a second substantially rigid ring, and a plurality of layered elastomeric members compressed therebetween. The first ring has a plurality of distally extending protrusions extending from a distal surface thereof, and the second ring has a plurality of proximally extending protrusions extending from a proximal surface thereof.
摘要:
A trocar for performing a procedure on a patient. The trocar includes a hollow cannula having a distal end and a proximal end. The trocar includes a housing having a distal end attached to the proximal end of the cannula and a proximal end having a wall attached thereto. The wall having an aperture therethrough. The trocar further includes a first seal disposed within the housing comprising a plurality of layered elastomeric members forming conical shape.
摘要:
A lock assembly for use in conjunction with a trocar sleeve includes a lock assembly housing having an aperture extending therethrough. The lock assembly also includes a cam lever and an elastomeric block positioned within the lock assembly housing. The cam lever includes a first end pivotally secured to the lock assembly housing and a free second end that is adapted for user actuation, wherein rotation of the cam lever brings the elastomeric block into engagement with an instrument passing through the lock assembly housing for locking an instrument relative thereto.
摘要:
A surgical apparatus particularly suited for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. A handle assembly includes a movable handle. The movable handle is movable through an actuation stroke. An elongate body extends distally from the handle assembly and defines a longitudinal axis. The elongate body has a distal end adapted to releasably engage both articulating and non-articulating disposable loading unit types. An actuation shaft is supported at least in part within the handle assembly and is mounted for longitudinal movement in response to manipulation of the actuation handle. An energy activated firing lockout system prevents operation of the surgical apparatus under a plurality of conditions.
摘要:
A staple cartridge assembly for use with a surgical stapler. The assembly has a cartridge body having a support portion with a plurality of staple cavities with openings. There is also a plurality of staples, wherein at least a portion of each the staple is removably stored within a the staple cavity. Each the staple is movable between an unfired position and a fired position, and is deformable between an unfired configuration and a fired configuration. The assembly also includes a compressible tissue thickness compensator configured to be captured within the staples. The compressible tissue thickness compensator at least partially covers the staple cavity openings. The compressed tissue thickness compensator is configured to assume different compressed heights within different the staples. The compressible tissue thickness compensator includes a visualization means.
摘要:
An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. A load monitor ensures that excessive pressure is not applied to a patient's body organ or duct.
摘要:
An apparatus including a surgical instrument may be used to sever and staple a portion of tissue. In some versions, the apparatus comprises a retainer cap. The retainer cap is in communication with the surgical instrument. The apparatus also comprises buttress material operable to couple with a portion of the surgical instrument. In some versions, the buttress material may comprise a plurality of tabs or other similar structures for coupling the buttress material to the surgical instrument. In some versions, a cutter may be operable to decouple the buttress material from the surgical instrument.
摘要:
A surgical stapling apparatus. Various embodiments include a rotatable elongated body that extends from a rotatable shroud on handle assembly and has a distal end configured for attachment to a disposable loading unit. The apparatus further includes a lockable rotation system for selectively locking the rotatable shroud to prevent rotation thereof about a longitudinal axis.
摘要:
In various embodiments, a surgical stapling instrument can include a handle, a shaft extending from the handle, wherein the shaft defines an axis, and a disposable loading unit which is assembled to the shaft in a direction which is transverse to the shaft axis. Such a connection between the disposable loading unit and the shaft can prevent, or at least inhibit, the disposable loading unit from being unintentionally displaced proximally and/or distally relative to the shaft of the surgical instrument. The surgical stapling instrument and/or disposable loading unit can further include a threaded collar and/or detent assembly configured to hold the disposable loading unit in place. In various embodiments, a disposable loading unit can include a lockout feature which can prevent, or at least inhibit, an expended disposable loading unit from being reassembled to the elongated body of the surgical instrument.
摘要:
An apparatus for regulating the functioning of a patient's organ or duct includes an elongated member having a first end and a second end. A fastener is disposed on the first end of the elongated member. The fastener is configured to engage the second end of the elongated member so that the elongated member forms a loop around the organ or duct. A tension element is disposed for movement within the elongated member. A drive element is associated with and engages the tension element for causing the tension element to control the tension applied by the elongated member against a patient's body organ or duct. A tension release mechanism is associated with the tension element.