| Apparatus for performing trans-anal resection -> Monitor Keywords |
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Apparatus for performing trans-anal resectionRelated Patent Categories: Elongated-member-driving Apparatus, Surgical Stapler, With Magazine, Tubular Driving PathApparatus for performing trans-anal resection description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070181631, Apparatus for performing trans-anal resection. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a surgical stapling and cutting instrument adapted for use in trans-anal resection and an associated method for performing trans-anal resection. More particularly, the present invention relates to a surgical stapling and cutting instrument having a curvature particularly adapted to fit within the rectum adjacent the anal canal for the performance of the trans-anal resection as well as the method for using the surgical stapling and cutting instrument. [0003] 2. Description of the Prior Art [0004] Surgical stapling and cutting instruments are commonly utilized in the diagnosis and treatment of pathologies treated by staple resection. Surgical stapling instruments provide a mechanism to extend the transluminal exploitation of mechanical suturing devices introduced via the anal canal, mouth, stomach and service accesses. Although surgical stapling and cutting instruments are most commonly utilized with rectal pathologies, surgical stapling and cutting instruments may be used in a variety of environments. [0005] Surgical stapling and cutting instruments generally include a support frame, an anvil attached to the support frame and a cartridge module carrying a plurality of staples. The instruments also include a driver within the cartridge module which pushes all of the staples out simultaneously into the anvil to form the staples into a generally B-shape, suturing tissue together. In addition, these instruments include approximation mechanisms for moving the cartridge module from a spaced position relative to the anvil to accept tissue therebetween to a closed position where the tissue is clamped between the anvil and the cartridge module. Finally, the instruments include a firing means for moving the staple driver forward to form the staples against the anvil. [0006] In addition to other procedures, surgical stapling and cutting instruments have been utilized in conjunction with trans-anal resections. Trans-anal resection is a surgical procedure utilized to remove tissue, for example, tumorous tissue, within the rectum by operating through the anus. This procedure is commonly performed to treat early stage rectal cancer or rectal tumors close to the anus. In accordance with this procedure, a section of the rectum is removed and the remaining opposed edges are coupled to complete the linking of the anus with the remainder of the rectum. [0007] With the foregoing in mind, those skilled in the art will appreciate the need for more advanced procedures relating to trans-anal resection, as well as the need for advanced instruments specifically designed to facilitate the advanced surgical procedures. The present invention addresses this need through the provision of a technique for trans-anal resection and an associated curved cutter stapler adapted for assisting in the performance of the procedure. SUMMARY OF THE INVENTION [0008] It is, therefore, an object of the present invention to provide a surgical instrument adapted for applying a plurality of surgical fasteners to body tissue. The surgical instrument includes a frame having a proximal end and a distal end, with a handle positioned at the proximal end and an end effector positioned at the distal end. The end effector is shaped and dimensioned for supporting a cartridge module. A firing mechanism is associated with the end effector and the cartridge module for selective actuation. The end effector has a radius of curvature optimized for a trans-anal resection such that the end effector has a curvature of at most approximately a 40 mm diameter. [0009] It is also an object of the present invention to provide a surgical instrument wherein the end effector has a curvature of between approximately a 20 mm diameter and approximately a 40 mm diameter. [0010] It is another object of the present invention to provide a surgical instrument wherein the end effector has a curvature adapted to fit within an envelope having a diameter of approximately 40 mm. [0011] It is a further object of the present invention to provide a surgical instrument wherein the end effector has a curvature of approximately a 36 mm diameter. [0012] It is also another object of the present invention to provide a surgical kit adapted for the performance of trans-anal resection. The surgical kit includes a surgical instrument as described above and a dilator having an opening with a curvature of at most approximately a 40 mm diameter. [0013] It is a further object of the present invention to provide a surgical instrument wherein the dilator has a curvature of approximately 40 mm. [0014] Other objects and advantages of the present invention will become apparent from the following detailed description when viewed in conjunction with the accompanying drawings, which set forth certain embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0015] FIG. 1 is a perspective view of the surgical stapler in accordance with the present invention. [0016] FIG. 2 is perspective view of the surgical stapler with the cartridge module removed. [0017] FIG. 3 is a perspective view of the surgical stapler with the cartridge housing moved to an intermediate position. [0018] FIG. 4 is a perspective view of the surgical stapler with the cartridge housing moved to a closed position. [0019] FIG. 5 is a perspective view of the surgical stapler with the firing trigger in a firing position. [0020] FIG. 6 is a front perspective view of the cartridge module with the retainer secured thereto. [0021] FIG. 7 is a front perspective view of the cartridge module with the retainer removed. Continue reading about Apparatus for performing trans-anal resection... Full patent description for Apparatus for performing trans-anal resection Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Apparatus for performing trans-anal resection patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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