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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | UP-0031618 (2008-02-14) |
| 등록번호 | US-7810692 (2010-11-01) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 621 인용 특허 : 307 |
A disposable loading unit for operable attachment to a surgical stapling apparatus. The disposable loading unit may have a carrier that supports a staple cartridge therein, an anvil assembly that is movably coupled to the carrier, and an axial drive assembly that is constructed to move in a distal d
A disposable loading unit for operable attachment to a surgical stapling apparatus. The disposable loading unit may have a carrier that supports a staple cartridge therein, an anvil assembly that is movably coupled to the carrier, and an axial drive assembly that is constructed to move in a distal direction from a start position to an end position through the staple cartridge in response to a drive motion imparted to the axial drive assembly from the surgical stapling apparatus. A firing indicator is provided on at least one of the anvil assembly and housing for indicating a position of the axial drive assembly as the axial drive assembly is driven from the start position to the end position.
What is claimed is: 1. A disposable loading unit for attachment to a surgical stapling apparatus, said disposable loading unit comprising: a carrier; a staple cartridge supported in said carrier; an anvil assembly movably coupled to said carrier for selective movable travel between open and closed
What is claimed is: 1. A disposable loading unit for attachment to a surgical stapling apparatus, said disposable loading unit comprising: a carrier; a staple cartridge supported in said carrier; an anvil assembly movably coupled to said carrier for selective movable travel between open and closed positions relative to said staple cartridge; an axial drive assembly having a distal end portion constructed to move in a distal direction from a start position to an end position through said staple cartridge in response to a drive motion imparted to said axial drive assembly from the surgical stapling apparatus, said axial drive assembly having a firing indicator region spaced from said distal end thereof; and a housing coupled to said carrier and configured for operable attachment to the surgical stapling apparatus, said housing having a distal end and an axially extending opening therein spaced from said distal end thereof such that said firing indicator region is observable through said axially extending opening; as said axial drive assembly is driven from said start position to said end position. 2. The disposable loading unit of claim 1 wherein said firing indicator region of said axial drive assembly has a color that differs from a color of said housing. 3. The disposable loading unit of claim 1 further comprising a firing indicator assembly associated with said carrier. 4. The disposable loading unit of claim 3 wherein said firing indicator assembly comprises an elongate slot through said carrier to permit another portion of said axial drive assembly to be observed as said axial drive assembly is driven from said start position to said end position. 5. The disposable loading unit of claim 1 further comprising a transparent window covering said axially extending opening in said housing. 6. The disposable loading unit of claim 1 wherein a said firing indicator region of said axial drive assembly protrudes out of said axially extending opening in said housing. 7. The disposable loading unit of claim 1 further comprising a second axially extending opening through said housing such that a second portion of said axial drive assembly is viewable therethrough. 8. The disposable loading unit of claim 1 further comprising a firing scale adjacent said axially extending opening in said housing. 9. The disposable loading unit of claim 8 wherein said firing scale comprises indicia selected from the group of indicia consisting of numbers, letters, colors and combinations of numbers letters and colors. 10. A disposable loading unit for attachment to a surgical stapling apparatus, said disposable loading unit comprising: a staple cartridge supported in a carrier operably couplable to the surgical stapling apparatus; an anvil assembly movably coupled to said carrier for selective movable travel between open and closed positions relative to said staple cartridge; an axial drive assembly having a distal end portion constructed to move in a distal direction from a start position to an end position through said staple cartridge in response to a drive motion imparted to said axial drive assembly from the surgical stapling apparatus; a housing coupled to said carrier and configured for operable attachment to the surgical stapling apparatus; and a firing indicator movably supported on said housing for contact by a portion of said axial drive assembly as said axial drive assembly is driven from said start position to said end position. 11. The disposable loading unit of claim 10 further comprising indicia on said housing for cooperating with said firing indicator to assess a travel of said axial drive assembly as said axial drive assembly is driven from said start position to said end position. 12. The disposable loading unit of claim 10 wherein said firing indicator has a color that differs from a color of said housing. 13. A disposable loading unit for attachment to a surgical stapling apparatus, said disposable loading unit comprising: a staple cartridge supported in a carrier operably couplable to the surgical stapling apparatus; an anvil assembly movably coupled to said carrier for selective movable travel between open and closed positions relative to said staple cartridge; an axial drive assembly having a distal end portion constructed to move in a distal direction from a start position to an end position through said staple cartridge in response to a drive motion imparted to said axial drive assembly from the surgical stapling apparatus; and a firing indicator movably supported on said anvil assembly for contact by a portion of said axial drive assembly as said axial drive assembly is driven from said start position to said end position. 14. The disposable loading unit of claim 13 wherein said anvil assembly comprises and anvil portion and a cover portion attached to said anvil portion and wherein said firing indicator is slidably mounted on said anvil cover. 15. The disposable loading unit of claim 13 wherein said firing indicator is movably supported in an elongated slot in said anvil assembly. 16. The disposable loading unit of claim 13 further comprising indicia on said anvil assembly to assess a travel of said axial drive assembly as said axial drive assembly is driven from said start position to said end position. 17. The disposable loading unit of claim 13 further comprising another firing indicator assembly associated with said carrier.
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