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Patent

Self-contained gas powered surgical stapler

23 May 1980-
TL;DR: In this paper, a surgical stapler powered by a relatively low pressure gas supply contained in the staplers is described, which has a mechanical linkage between the pneumatic actuator and the staple driver with a differential mechanical advantage to match the substantially constant force provided by the pNE to the different forces required to first advance and then form the staple.
Abstract: A surgical stapler powered by a relatively low pressure gas supply contained in the stapler. The stapler has a mechanical linkage between the pneumatic actuator and the staple driver with a differential mechanical advantage to match the substantially constant force provided by the pneumatic actuator to the different forces required to first advance and then form the staple. This mechanical linkage allows use of a relatively small low pressure actuator and also substantially increases the efficiency with which the gas supply is utilized.
Citations
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Patent
10 Jun 2011
TL;DR: In this article, a surgical stapling device particularly suited for endoscopic procedures is described, which includes a handle assembly and an elongated body extending distally from the handle assembly.
Abstract: A surgical stapling device particularly suited for endoscopic procedures is described The device includes a handle assembly and an elongated body extending distally from the handle assembly The distal end of the elongated body is adapted to engage a disposable loading unit A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device

2,013 citations

Patent
03 Aug 1995
TL;DR: In this article, a self-contained powered surgical stapling apparatus is provided which includes an elongate body, a fastener applying assembly including an anvil for forming a surgical fastener driven thereagainst, a motor assembly and power source for energizing the motor assembly disposed within the elongated body, and a pusher driven by the motor assembler for driving a surgeon fastener toward the anvil to be formed thereby and fastened to body tissue.
Abstract: A self-contained powered surgical stapling apparatus is provided which includes an elongate body, a fastener applying assembly including an anvil for forming a surgical fastener driven thereagainst, a motor assembly and power source for energizing the motor assembly disposed within the elongate body, and a pusher driven by the motor assembly for driving a surgical fastener toward the anvil to be formed thereby and fastened to body tissue. The apparatus is configured for utilization during conventional invasive surgical procedures as well as endoscopic or laparoscopic surgical procedures by providing a detachable extension shaft.

1,894 citations

Patent
17 Jun 2004
TL;DR: In this paper, a surgical stapling device for applying an array of surgical staples to tissue is provided, which includes an approximation mechanism for moving a cartridge assembly and an anvil assembly between spaced and approximated positions and a firing mechanism for ejecting the array of staples from the cartridge assembly.
Abstract: A surgical stapling device for applying an array of surgical staples to tissue is provided. The stapling device includes an approximation mechanism for moving a cartridge assembly and an anvil assembly between spaced and approximated positions and a firing mechanism for ejecting the array of staples from the cartridge assembly. A single trigger is operable to effect approximation and firing of the device. The device also includes an alignment pin assembly which can be selectively manually or automatically advanced. The anvil assembly includes a stiffener plate which allows the device to have a reduced head portion profile.

1,659 citations

Patent
30 Sep 2004
TL;DR: In this paper, a surgical stapling instrument (1) comprises a body portion (2, 3), a handle (4), and a staple fastening assembly (8), which includes a curved cartridge (10), which comprises at least one curved open row of staples, and a curved anvil (22), which is adapted to cooperate with the cartridge for forming the ends of the staples exiting from the cartridge.
Abstract: A surgical stapling instrument (1) comprises a body portion (2, 3), a handle (4) and a staple fastening assembly (8). The staple fastening assembly (8) includes a curved cartridge (10), which comprises at least one curved open row of staples, and a curved anvil (22), which is adapted to cooperate with the cartridge (10) for forming the ends of the staples exiting from the cartridge (10). The staple fastening assembly (8) is adapted to allow unobstructed access towards the concave inner faces of the cartridge (10) and the anvil (22). The cartridge (10) can be moved towards the anvil (22) from a spaced position for positioning tissue therebetween to a closed position for clamping the tissue. Preferably, a knife is contained within the cartridge (10) and is positioned such that there is at least one row of staples on at least one side of the knife.

1,502 citations

Patent
14 Jun 2016
TL;DR: Newness and distinctiveness is claimed in the features of ornamentation as shown inside the broken line circle in the accompanying representation as discussed by the authors, which is the basis for the representation presented in this paper.
Abstract: Newness and distinctiveness is claimed in the features of ornamentation as shown inside the broken line circle in the accompanying representation.

1,500 citations

References
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Patent
14 Dec 1970
TL;DR: In this paper, a disposable staple cartridge is used to insert a plurality of staples on a flexible belt and adapted to inject and form the staples, singly, into the disunited skin or fascia of a patient.
Abstract: A disposable staple cartridge housing a plurality of staples on a flexible belt and adapted to inject and form the staples, singly, into the disunited skin or fascia of a patient. Downwardly projecting flanges on a staple pusher act directly on the forwardmost staple positioned between a pair of adjacent teeth in the flexible belt and move the staple, the belt and its contents, with each stroke of the pusher. The forwardmost staple, when acted upon by the pusher, advances, rides out of the plane of the flexible belt and into the plane of the pusher and is ejected and bent around an anvil assembly. On the return stroke of the pusher, the downwardly projecting flanges flex out of the plane of the next successive staple, moving over that staple, and then take a position in readiness for the following stapling operation. The cartridge is provided with means for preventing the retraction of the staple housing belt during the rearward stroke of the pusher. In a second embodiment of the disposable cartridge, a plurality of staples are advanced as described above, but the number of disposable elements are reduced. With this embodiment, an inventive adaptor serves to associate the cartridge with a powering instrument. Also disclosed is a novel and simplified gas activated powering unit which develops a rectilinear thrust for advancing and forming staples.

841 citations

Patent
26 Feb 1970
TL;DR: In this article, a gas-powered instrument for applying surgical staples to effect the joining of disunited skin or fascia is presented, which is powered by a gas under pressure originating from a gas filled tank.
Abstract: An instrument for applying surgical staples to effect the joining of disunited skin or fascia. The instrument of the present invention is powered by a gas under pressure originating from a gas filled tank, positioned within a housing and adapted to ensure that the introduction of the tank and removal thereof may be easily and quietly accomplished without danger of injury to the operator. The surgical staples are carried in one of two types of cartridge assemblies, the first and smaller being designed for the application of staples to external skin and the second and larger being designed for the application of staples to the more tender internal fascia. The cartridge is held in the body of the instrument by means of a spring which greatly facilitates the introduction of the cartridge. The instrument is further provided with means for preventing more than one driving operation per trigger activation, means for returning the stapledriving mechanisms to their pre-stapling positions, and a novel power unit. Staple cartridges are also disclosed which ensure proper initial phasing between staple-advancing screws, proper alignment of the screws before insertion into the instrument, and means for preventing accidental ejection of staples during transit.

803 citations

Patent
05 Feb 1981
TL;DR: A pusher bar and knife assembly including a pair of pusher bars and a central knife carrier moves longitudinally relative to the jaws to eject staples sequentially from the magazine and form laterally spaced staple rows in tissue gripped between the jaws while the knife cuts the tissue along a line between the staple rows.
Abstract: A surgical stapling instrument has upper and lower elongate jaws for receiving a staple cartridge and an anvil respectively. A pusher bar and knife assembly including a pair of pusher bars and a central knife carrier moves longitudinally relative to the jaws to eject staples sequentially from the magazine and form laterally spaced staple rows in tissue gripped between the jaws whilethe knife cuts thetissue along a line between the staple rows. The instrument includes means for locally supporting the jaws in the region of the pusher bar cams and knife blade as these elements move along the jaws to resist forces created during staple ejection and shaping which tend to vertically separate and/or laterally distort the jaws.

745 citations

Patent
18 Oct 1974
TL;DR: In this article, a shifter dog mechanism is used to ensure the completion of a ligating, suturing and dividing cycle to avoid jamming the staple-carrying cartridge.
Abstract: A surgical instrument for controlling the operation of a three-stage staple-carrying cartridge adapted to ligate, suture and divide organic tubular structures such as blood vessels. The instrument also operates in three-stages to positively control the ligating, suturing and dividing operations of the cartridge. The cartridge actuating mechanism takes the form of three saddles which are in turn controlled by the operating mechanism of the instrument. A two-link mechanical toggle positively controls the operation of two of the three cartridge-actuating saddles. The third saddle is, in turn, controlled by a shifter dog mechanism. The instrument is also equipped with a mechanism which ensures the completion of a ligating, suturing and dividing cycle to avoid jamming the staple-carrying cartridge.

613 citations

Patent
01 Jun 1970
TL;DR: An instrument for use by surgeons particularly in cases involving resection and anastomosis of vascular and digestive tract organs is described in this paper.The instrument is dimensioned for insertion of the principal parts of the instrument into the open ends of or through stab wounds in the lumena after resection by stapling the tissue entirely around the stoma which is formed by an endless knife, illustrated as annular.
Abstract: An instrument for use by surgeons particularly in cases involving resection and anastomosis of vascular and digestive tract organs. The instrument is dimensioned for insertion of the principal parts of the instrument into the open ends of or through stab wounds in the lumena after resection and the actual anastomosis is by stapling the tissue entirely around the stoma which is formed by an endless knife, illustrated as annular, and the tissue cut away to form the stoma is conveniently removed with instrument. The staples and knife are in a replaceable cartridge. Remote power means connected by a flexible conduit allows maximized ease of maneuverability of the principal parts of the instrument during actual surgical procedure.

523 citations