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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0894354 (2007-08-21) |
| 등록번호 | US-8192433 (2012-06-05) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 21 인용 특허 : 668 |
An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member inc
An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes an electrically conductive tissue contacting surface connected to an electrosurgical energy source. At least one of the jaw members includes an electrically conductive cutting element disposed within an insulator defined in the jaw member. A rigid structural support is included which is configured to support the electrically conductive tissue sealing surface and includes at least one flow channel defined therein.
1. An end effector assembly for use with an instrument for sealing and/or cutting vessels and/or tissue, the end effector assembly comprising: a pair of opposing first and second jaw members at least one of which is movable relative to the other jaw member from a first position wherein the jaw membe
1. An end effector assembly for use with an instrument for sealing and/or cutting vessels and/or tissue, the end effector assembly comprising: a pair of opposing first and second jaw members at least one of which is movable relative to the other jaw member from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween, at least one of the first and second jaw members including a cam slot configured to regulate movement of the at least one movable jaw member from the first position to the second position;each jaw member including an electrically conductive tissue sealing surface extending along a length thereof, each tissue sealing surface being adapted to connect to a source of electrosurgical energy such that the tissue sealing surfaces are capable of conducting electrosurgical energy through tissue held therebetween to effect a tissue seal;an insulative material configured to support each electrically conductive sealing surface;a first electrically conductive cutting element disposed within a slot defined in at least one of the jaw members; anda second electrically conductive cutting element disposed within the insulative material of the opposing jaw member, the second electrically conductive cutting element generally opposing the first electrically conductive cutting element, the first and second electrically conductive cutting elements configured to abut one another in vertical registration when the jaw members are transitioned to the second position. 2. An end effector assembly according to claim 1 wherein the insulative material is disposed between the electrically conductive tissue sealing surfaces and further comprising a rigid structural support configured to support the electrically conductive tissue sealing surface. 3. An end effector assembly according to claim 2 wherein the rigid structural support includes perforations. 4. An end effector assembly according to claim 3 wherein the insulative material is located between the perforations of the rigid structural support. 5. An end effector assembly according to claim 1 wherein the electrically conductive cutting element includes at least one mechanically interfacing surface configured to mate with the insulative material to retain the electrically conductive cutting element within the insulative material. 6. An end effector assembly according to claim 1 wherein the electrically conductive tissue sealing surfaces are photochemically etched onto the insulative material. 7. An end effector assembly according to claim 1 wherein the electrically conductive tissue sealing surfaces are formed onto the insulative material by a stamping process. 8. An end effector assembly according to claim 1 wherein the insulative material of at least one of the electrically conductive sealing surfaces is configured to at least partially extend to a position which is at least substantially flush with the electrically conductive cutting element. 9. An end effector assembly according to claim 1 wherein at least one of the jaw members includes a bridge located at a distal end thereof.
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