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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0442849 (2006-05-30) |
| 등록번호 | US-8128624 (2012-03-06) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 427 인용 특허 : 454 |
An electrode sealing assembly is designed for use with an electrosurgical instrument for sealing tissue and includes first and second jaw members each having an insulative housing and being movable from a first position in spaced relation relative to one another to at least one second position for g
An electrode sealing assembly is designed for use with an electrosurgical instrument for sealing tissue and includes first and second jaw members each having an insulative housing and being movable from a first position in spaced relation relative to one another to at least one second position for grasping tissue therebetween. Each of the jaw members includes an electrically conductive sealing member disposed within the respective insulative housing. At least one of the insulative housings includes at least one tissue engaging surface configured to extend beyond the electrically conductive sealing member of one of the jaw members. The tissue engaging surface of the insulative housing cooperates with the opposing insulative housing of the opposing jaw member to both pinch and spread tissue when the jaw members are moved to the second position to decrease extraneous energy transmittance to tissue surrounding the jaw members.
1. An electrode sealing assembly designed for use with an electrosurgical instrument for sealing tissue, comprising: first and second jaw members each having an insulative housing and being movable from a first position in spaced relation relative to one another to at least one second position for g
1. An electrode sealing assembly designed for use with an electrosurgical instrument for sealing tissue, comprising: first and second jaw members each having an insulative housing and being movable from a first position in spaced relation relative to one another to at least one second position for grasping tissue therebetween;each of the jaw members including an electrically conductive sealing member disposed within said respective insulative housing;at least one elastomeric insulative member operably coupled to at least one of the insulative housings and including a tissue engaging surface extending beyond a tissue engaging surface of said electrically conductive sealing member in a direction towards the opposing jaw member, wherein said tissue engaging surface of said at least one elastomeric insulative member cooperates with the opposing insulative housing of the opposing jaw member to both pinch and spread tissue when the jaw members are moved to the second position to decrease extraneous energy transmittance to tissue surrounding the jaw members,wherein the at least one elastomeric insulative member includes a mechanically interfacing surface that is configured to engage a corresponding mechanically interfacing surface of a respective electrically conductive sealing member, wherein the mechanically interfacing surface of the at least one elastomeric insulative member includes a generally concave horizontal medial portion providing flexibility to further deflect the tissue engaging surface of the at least one elastomeric insulative member. 2. The electrode sealing assembly according to claim 1, wherein each of the jaw members includes at least one elastomeric insulative member including a respective tissue engaging surface that extends beyond the electrically conductive sealing member. 3. The electrode sealing assembly according to claim 2, wherein said at least one elastomeric insulative member of each of said jaw members is disposed in general vertical registration with respect to the other at least one elastomeric insulative member of the opposing jaw member. 4. The electrode sealing assembly according to claim 2, wherein each jaw member includes at least two electrically conductive sealing members. 5. The electrode sealing assembly according to claim 4, wherein at least one jaw member includes at least two insulative housings that extend beyond an outer peripheral surface of each electrically conductive sealing members. 6. . The electrode sealing assembly according to claim 1, wherein the at least one elastomeric insulative member is made from a silicon-based material. 7. The electrode sealing assembly according to claim 1, wherein the at least one elastomeric insulative member is made from an elastomer that is selected from the group consisting of polychloropene rubber (neoprene rubber), and latex (natural rubber) and the at least one insulative housing is made from a material that is selected from the group consisting of polyphthalamide, nylon and plastic. 8. An electrosurgical instrument having an end effector assembly for sealing tissue, the end effector assembly comprising: first and second complementary jaw members each having an insulative housing with elastomeric insulative members and opposing electrically conductive sealing members being operably coupled thereto, the elastomeric insulative members each including a tissue engaging surface extending beyond a tissue engaging surface of respective electrically conductive sealing members in a direction towards the opposing jaw member such that when the two electrically conductive sealing members are moved relative to one another the tissue engaging surfaces cooperate to pinch tissue therebetween, the elastomeric insulative members being configured to decrease extraneous energy transmittance to tissue surrounding the end effector assembly,wherein each of the elastomeric insulative members includes a mechanically interfacing surface that is configured to engage a corresponding mechanically interfacing surface of each of the respective electrically conductive sealing members, wherein the mechanically interfacing surface of each of elastomeric insulative members includes a generally concave horizontal medial portion providing flexibility to further deflect an opposing tissue engaging surfaces of the elastomeric insulative members.
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