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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0486070 (2002-08-08) |
우선권정보 | IE-S2001/0748(2001-08-09) |
국제출원번호 | PCT/IE02/000118 (2002-08-08) |
§371/§102 date | 20040206 (20040206) |
국제공개번호 | WO03/013363 (2003-02-20) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 672 인용 특허 : 54 |
A surgical stapling device is provided having an elongate housing and a surgical staple slidable longitudinally within the housing towards a free forward end thereof, the staple having a back and two forwardly pointing legs. The housing contains a staple-firing mechanism for driving the staple towar
A surgical stapling device is provided having an elongate housing and a surgical staple slidable longitudinally within the housing towards a free forward end thereof, the staple having a back and two forwardly pointing legs. The housing contains a staple-firing mechanism for driving the staple towards the free end of the housing, bending the staple to bring the free ends of the legs towards one another to close the staple, and releasing the closed staple. A cap is located at the free end of the housing at a position where, in operation of the staple-firing mechanism, the cap becomes trapped between the back of the closed staple and human or animal tissue being stapled so as to provide a greater area of pressure on the tissue than in the absence of the cap.
What is claimed is: 1. A surgical stapling device, comprising: an elongate housing; a surgical staple slidable longitudinally within the housing towards a free forward thereof, the staple having a back and two forwardly pointing legs; a staple-firing mechanism for driving the staple towards the fre
What is claimed is: 1. A surgical stapling device, comprising: an elongate housing; a surgical staple slidable longitudinally within the housing towards a free forward thereof, the staple having a back and two forwardly pointing legs; a staple-firing mechanism for driving the staple towards the free end of the housing, bending the staple to bring the free ends of the legs towards one another to close the staple, and releasing the closed staple; and a cap located at the free end of the housing at a position where, in operation of the staple-firing mechanism, the cap becomes trapped between the back of the closed staple and human or animal tissue being stapled so as to provide a greater area of pressure on the tissue than in the absence of the cap, and closure of the staple effects a lateral compression of the cap to at least partially close a central opening formed in the cap. 2. A device as claimed in claim 1, wherein the free end of the housing has a circular cross-section and the cap is generally in the form of a disk positioned substantially concentrically relative to the free end. 3. A device as claimed in claim 2, wherein the disk has two diametrically opposite apertures for accommodating the legs of the staple. 4. A device as claimed in claim 3, wherein the apertures comprise slots extending radially inwards from the periphery of the disk. 5. A device as claimed in claim 1, further including an elongated locator member slidable longitudinally within the housing between an initial forward position wherein the locator member projects beyond the free end of the housing to enter a puncture site in a liquid-carrying vessel in a human or animal, thereby to locate the free end of the housing at the puncture site, and a rearward position wherein to locator member is retracted into the housing in coordination with the closure of the staple, wherein the central opening in the cap fits over the projecting locator member in its initial forward position, the locator member being withdrawn from the central opening when it is retracted into the housing. 6. A device as claimed in claim 5, wherein the disk is made of a resilient material and the central opening is a slit extending substantially normal to the direction of closure of the staple legs, the slit being resiliently forced apart by insertion of the blood locator tube and closing automatically, through the resilience of the disk, when the blood locator tube is retracted. 7. A device as claimed in claim 5, wherein the central opening is generally oval with its major axis substantially normal to the direction of closure of the staple legs. 8. A method of stapling human or animal tissue, the method including: providing a stapling device comprising an elongate housing, a surgical staple slidable longitudinally within the housing towards a free forward end thereof, the staple having a back end two forwardly pointing legs, and a staple-firing mechanism for driving the staple towards the free end of the housing; bending the staple to bring the free ends of the legs towards one another to close the staple; releasing the closed staple; and placing a cap at the free end of the housing and operating the staple-firing mechanism, the cap being located at a position where, in operation of the staple-firing mechanism, the cap becomes trapped between the back of the closed staple and human or animal tissue being stapled so as to provide a greater area of pressure on the tissue than in the absence of the cap.
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