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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0882131 (2001-06-15) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 779 인용 특허 : 89 |
A disposable loading unit is disclosed for use in conjunction with a surgical stapling apparatus configured to sequentially apply a plurality of surgical fasteners to body tissue. The apparatus includes an actuation assembly for effectuating a fastener applying operation, and a housing for receiving
A disposable loading unit is disclosed for use in conjunction with a surgical stapling apparatus configured to sequentially apply a plurality of surgical fasteners to body tissue. The apparatus includes an actuation assembly for effectuating a fastener applying operation, and a housing for receiving and releasably supporting the disposable loading unit. The disposable loading unit includes a staple cartridge body having a longitudinal pathway extending therethrough and a plurality of spaced apart retention slots defined therein each supporting a respective surgical fastener, a plurality of fastener ejection members disposed adjacent the plurality of spaced apart retention slots and communicating with the longitudinal pathway, and an actuator supported within the staple cartridge body and configured to engage the actuation assembly of the apparatus and translate through the longitudinal pathway to contact the fastener ejection members and thereby sequentially eject the surgical fasteners from their respective retention slots.U.S. PATENT DOCUMENTS4,273,111June 1981Tsukaya.4,283,165August 1981Vertut.4,290,421September 1981Siegmund.4,347,837September 1982Hosono.4,351,323September 1982Ouchi et al..4,429,695February 1984Green.4,432,349February 1984Oshiro.4,473,077September 1984Noiles et al..4,483,326November 1984Yamaka et al..4,494,417January 1985Larson et al..4,503,842March 1985Takayama.4,557,254December 1985Yamaguchi.4,593,679June 1986Collins.4,606,343August 1986Conta et al..4,608,981September 1986Rothfuss et al..4,688,555August 1987Wardle.4,700,693October 1987Lia et al..4,718,407January 1988Chikama.4,721,099January 1988Chikama.4,726,355February 1988Okada.4,753,223June 1988Bremer.4,754,909July 1988Barker et al..4,762,118August 1988Lia et al..4,762,119August 1988Allred, III et al..4,770,185September 1988Silverstein et al..4,773,395September 1988Suzuki et al..4,779,612October 1988Kishi.4,787,369November 1988Allred, III et al..4,790,294December 1988Allred, III et al..4,794,912January 1989Lia.4,796,607January 1989Allred, III et al..4,805,596February 1989Hatori.4,815,911March 1989Bengtson et al..4,834,069May 1989Umeda.4,873,965October 1989Danieli.4,905,666March 1990Fukuda.4,911,148March 1990Sosonowski et al..4,919,112April 1990Siegmund.4,947,827August 1990Opie et al..4,955,959September 1990Thompkins et al..4,977,790December 1990Nishi et al..4,996,974March 1991Ciarlei.5,002,041March 1991Chikama.5,005,558April 1991Aomori.5,007,406April 1991Takahasi et al..5,014,515May 1991Krauter.5,014,685May 1991Takahashi.5,025,804June 1991Kondo.5,031,814July 1991Tompkins et al..5,042,707August 1991Taheri.5,065,929November 1991Schulze et al..5,108,819April 1992Wollschager et al..5,125,395June 1992Adair.5,143,475September 1992Chikama.5,156,315October 1992Green et al..5,158,086October 1992Brown et al..5,167,221December 1992Chikama.5,168,864December 1992Shockey.5,174,276December 1992Crockard.5,174,277December 1992Matsumaru.5,176,126January 1993Chikama.5,178,129January 1993Chikama.5,179,935January 1993Miyagi.5,195,968March 1993Lundquist et al..5,307,976May 1994Olson et al..5,312,023May 1994Green et al..5,318,221June 1994Green et al..5,326,013July 1994Green et al..5,332,142July 1994Robinson et al..5,391,180February 1995Tovey et al..5,394,864March 1995Kobayashi et al..5,411,519May 1995Tovey et al..5,417,203May 1995Tovey et al..5,447,265September 1995Vidol et al..5,478,003December 1995Green et al..5,485,947January 1996Olson et al..5,489,058February 1996Plyley et al..5,632,432May 1997Schulze et al.. 227/180.1B1 5,040,715August 1991Green et al..
1. A disposable loading unit for a surgical stapling apparatus comprising:a) a staple cartridge body having a longitudinal pathway extending therethrough and a plurality of spaced apart retention slots defined therein, each supporting a respective surgical fastener; b) a plurality of fastener ejecti
1. A disposable loading unit for a surgical stapling apparatus comprising:a) a staple cartridge body having a longitudinal pathway extending therethrough and a plurality of spaced apart retention slots defined therein, each supporting a respective surgical fastener; b) a plurality of fastener ejection members disposed adjacent the plurality of spaced apart retention slots and communicating with the longitudinal pathway; c) an actuator at least partially disposed within the staple cartridge body and configured to be translated through the longitudinal pathway to contact the fastener ejection members and thereby sequentially eject the surgical fasteners from their respective retention slots, the actuator including a base portion defining a plane and having at least two upstanding parallel cam plates each defining an angled leading edge for contacting the fastener ejection members; d) a cutting member configured to translate through the staple cartridge body, the cutting member having a blade and a blade support, the blade support including a camming surface spaced from the blade configured to interact with an abutment surface defined within a distal end portion of the staple cartridge body, wherein the staple cartridge body includes a planar tissue contacting surface through which extends a linear slot to accommodate translation of the cutting member, the planar tissue contacting surface defining a tissue contacting plane, the cutting member intersecting the tissue contacting plane during the translation thereof, and moving out of intersection with the tissue contacting plane when the camming surface of the cutting member contacts the abutment surface of the staple cartridge body. 2. A disposable loading unit according to claim 1, wherein the cutting member is pivotably supported at least partially within the staple cartridge body.3. A disposable loading unit according to claim 2, wherein the cutting member is pivotably supported by the actuator about a pivot axis located distally of the blade.4. A disposable loading unit for a surgical stapling apparatus comprising:a) a staple cartridge body having a longitudinal pathway extending therethrough and at least two rows of spaced apart retention slots defined therein, each slot supporting a respective surgical fastener, the staple cartridge body defining a planar tissue contacting surface having a linear slot extending therethrough, the staple cartridge body further defining an abutment surface formed near a distal end thereof; b) a plurality of fastener ejection members disposed adjacent the plurality of spaced apart retention slots and communicating with the longitudinal pathway; c) an actuator at least partially disposed within the staple cartridge body, the actuator having: i) a base portion; and ii) at least two upstanding parallel cam plates extending from a base portion, each of the at least two cam plates defining an angled leading edge, such that the angled leading edges are longitudinally aligned with the at least two rows of spaced apart retention slots so as to contact the fastener ejection members upon translational movement of the actuator through the longitudinal pathway and to thereby sequentially eject the surgical fasteners from their respective retention slots; and d) a cutting member pivotably mounted with respect to the actuator and translatably slidable with the actuator in the linear slot of the staple cartridge body, the cutting member having a blade and a flange including an upper surface which interacts with the abutment surface of the staple cartridge body, the flange being spaced distally of the blade, the cutting member being pivotable from a first position intersecting a tissue contacting plane defined by the planar tissue cutting surface, to a second position out of intersection with the tissue contacting plane, the cutting member being pivotable to the second position when the camming surface of the cutting member contacts the abutment surface of the staple cartridge body. 5. A disposable loading unit for a surgical stapling apparatus comprising:a staple cartridge body defining a longitudinal pathway and a plurality of spaced apart retention slots, each retention slot being dimensioned to receive a surgical fastener; a plurality of fastener ejection members disposed adjacent the plurality of spaced apart retention slots and communicating with the longitudinal pathway; an actuator at least partially disposed within the staple cartridge body and configured to be translated through the longitudinal pathway to contact the fastener ejection members and sequentially eject the surgical fasteners from their respective retention slots, the actuator including a base portion defining a plane and having at least two upstanding parallel cam plates each defining an angled leading edge for contacting the fastener ejection members; a cutting member including a blade and a blade carrier, the cutting member being configured to translate through the staple cartridge body, the blade carrier including a flange configured to engage the base portion of the actuator; wherein the staple cartridge body includes a planar tissue contacting surface through which extends a linear slot to accommodate translation of the cutting member, the planar tissue contacting surface defining a tissue contacting plane, the cutting member being movable from a first position intersecting the tissue contacting plane to a second position located beneath the tissue contacting plane. 6. A disposable loading unit according to claim 5, wherein the at least two upstanding parallel cam plates includes four upstanding parallel cam plates. 7. A disposable loading unit according to claim 6, wherein two of the four upstanding parallel cam plates are positioned on each side of the linear slot. 8. A disposable loading unit according to claim 5, wherein the blade is located proximally of the angled leading edge of each of the at least two upstanding parallel cam plates. 9. A disposable loading unit for a surgical stapling apparatus comprising:a staple cartridge body having a planar tissue contacting surface defining a tissue contacting plane, said body defining a longitudinal pathway therethrough and a linear slot traversing said planar tissue contacting surface, said body further defining a plurality of fastener retention slots on both sides of said linear slot, said fastener retention slots slidably supporting a respective surgical fastener and at least a portion of a surgical fastener ejection member; an actuator having a beam portion and at least two cam plates having distal camming surfaces, said actuator configured to move in at least a distal direction through said longitudinal pathway to sequentially engage said cam plates with a portion of said surgical fastener ejection members to drive said surgical fasteners transversely with respect to said longitudinal pathway; a cutting member having a blade support and a blade, the blade support of said cutting member being connected to said beam portion of said actuator in a manner that allows said blade to translate with said actuator from adjacent a proximal end of said linear slot to adjacent a distal end of said linear slot to bisect said tissue contacting plane, said blade support including a proximally projecting flange which contacts the actuator, wherein when the actuator moves distally through said longitudinal pathway, the blade support, in cooperation with the beam portion of the actuator, maintains the blase in a cutting position. 10. A disposable loading unit according to claim 9, wherein said blade support is positioned proximal to said distal camming surfaces of said cam plates. 11. A disposable loading unit according to claim 9, wherein said longitudinal pathway defined in said staple cartridge body is configured to allow said blade to be lowered substantially out of said tissue contacting plane adjacent a distal portion of said linear slot.
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