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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0190301 (1980-09-24) |
| 발명자 / 주소 |
|
| 인용정보 | 피인용 횟수 : 512 인용 특허 : 0 |
The present invention is a new kind of bipolar coagulating instrument which has special application in certain microsurgical or neurosurgical contexts in which one must grip and coagulate a web of tissue or membrane which is inside a deep surgical hole, and where the web hangs from the side wall of
The present invention is a new kind of bipolar coagulating instrument which has special application in certain microsurgical or neurosurgical contexts in which one must grip and coagulate a web of tissue or membrane which is inside a deep surgical hole, and where the web hangs from the side wall of the hole and is in a plane perpendicular to the line of sight. The instrument must then be adapted to grip the hanging membrane with its tips and close down on the membrane in a direction which is parallel to the line of sight, and then apply a coagulating potential to its tips to coagulate the membrane. The invention then has a side-biting tips which close in a longitudinal direction, i.e. parallel to the line of sight or the distal axis of the instrument, and which has tips that are electrically insulated to become the two poles of the coagulating electric potential. Thus this longitudinally, side-biting, bipolar coagulating, surgical instrument is in marked contrast to conventional bipolar coagulating forceps, the tips of which always close in direction which is transverse, i.e. perpendicular, to the direction of line of sight or the distal axis of the instrument.
A bipolar coagulating surgical instrument adapted for closing upon and coagulating tissue in a direction parallel to its distal axis, comprising: a proximal portion having a proximal end and a distal portion having a distal end, the proximal portion being so adapted to be held when in use, the dista
A bipolar coagulating surgical instrument adapted for closing upon and coagulating tissue in a direction parallel to its distal axis, comprising: a proximal portion having a proximal end and a distal portion having a distal end, the proximal portion being so adapted to be held when in use, the distal portion being so adapted to be directed toward the tissue to be coagulated when in use, and said distal portion being of elongated shape so that it can be directed into a deep surgical hole in the living body in order to reach a portion of tissue deep within the surgical hole and so that said distal portion defines approximately a distal axis of said surgical instrument, a first conductive element and a second conductive element which both extend from said proximal end to said distal end, means for electrically insulating at least a portion of said conductive elements with the tips of said conductive elements at said distal end being at least in part uninsulated and being the bipolar coagulating portion of said instrument, and the proximal ends of said conductive elements being adapted to be connected across a coagulating electric potential source when said instrument is in use, actuation means located at said proximal portion being so adapted and so cooperatively coupled to said two conductive elements that when said actuation means is pressed then said tips of said conductive elements will move relative to each other along a direction approximately parallel to the distal axis of said instrument, and said tips being so shaped that at least part of their uninsulated portions will close toward each other in such a way that said uninsulated tip portions can close upon each other and upon a plane which is oriented approximately perpendicular to said distal axis of said instrument, said conductive elements being so adapted to be electrically insulated from each other whenever said uninsulated portions of said tips of said conductive elements are not in contact with each other; whereby, when in use, said distal portion of said instrument can be inserted in to a deep surgical hole in the living body so that said distal axis of said instrument can be approximately aligned with the axis of said deep surgical hole, and, by pressing said actuation means, said uninsulated portions of said tips can be made to close upon a portion of membrane of tissue which hangs from the side walls of said deep surgical hole at a deep location in said surgical hole, said membrane being oriented in a plane that is perpendicular to said distal axis of said instrument, said uninsulated portions of said tips closing upon said portion of hanging membrane in a direction approximately parallel to said distal axis of said instrument; whereupon, when a coagulating electric potential is applied to said conductive elements, said membrane may be coagulated between said uninsulated portions of said tips.
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