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System for simultaneous tissue coagulation and tissue dissection

A series of electrode technologies, applied in parts of surgical instruments, medical science, surgery, etc., can solve problems affecting the results of biological tissues and the distribution of mechanical forces

Active Publication Date: 2016-03-16
爱尔博电子医疗仪器股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both influencing factors influence the distribution of electric current and the distribution of mechanical forces on the tissue and thus the results obtained in biological tissues

Method used

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  • System for simultaneous tissue coagulation and tissue dissection
  • System for simultaneous tissue coagulation and tissue dissection
  • System for simultaneous tissue coagulation and tissue dissection

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 A system 8 is shown, comprising a generator 9 and a surgical instrument 10 powered thereby. The generator 9 supplies the instrument 10 with a high-frequency voltage, which is transmitted to the tool 12 fastened on the shaft 11 . The proximal end of the shaft 11 is connected to the housing 13, at which end an actuation element 14 is positioned to move and actuate the tool 12. Tool 12 is used to sever the tissue by sealing the remaining tissue suture such that the blood vessels contained within the tissue and lumen are sealed at the tissue suture.

[0027] figure 2 The tool 12 shown in has two branches 15 , 16 at least one of which is rotatably mounted about a pivot 17 . The branches 15 , 16 can be moved towards each other by actuating the actuating element 14 and away from each other by releasing the actuating element 14 . The branches 15, 16 may also be moved by other means, such as pneumatic, hydraulic or electric drives (not shown).

[0028] image 3Th...

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Abstract

An instrument (10) provided for simultaneous coagulation and dissection of tissue has tissue receptacles between the cutting electrode and the sealing electrode for the formation of tissue bulges to secure the tissue in the tool during the sealing process. In order to make it possible to form voluminous tissue bulges and to prevent their atrophy, the cutting electrode is supplied by a current limiting component, preferably in the form of a coupling capacitor. Thereby, in particular, in tissue that can be cut through easily, but which requires a long time for sealing, a high degree of process safety is achieved.

Description

technical field [0001] Well-known surgical instruments can be used to cut tissue (dissection) and seal tissue (coagulation). Background technique [0002] US8394094B2 discloses such an instrument. This instrument is designed as a forceps type for grasping tissue between two branches. At one of the branches, a coagulation electrode and a cutting electrode are attached. The other branch serves as a counter electrode. Furthermore, a movable counter-bearing is arranged opposite the cutting electrode. [0003] WO 00 / 47124 discloses a similar instrument with a movably mounted cutting electrode. The cutting electrode is held between two sealing electrodes associated with a counter electrode embedded in the groove. A generator powers the device and derives output voltages from the device, namely coagulation voltage and cutting voltage. Transformers have single or two-component primary windings and two secondary windings. In a modified embodiment, the two output windings are c...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/1445A61B2018/1452A61B2018/0063A61B2018/00607A61B2018/00601A61B18/1206A61B2018/1286A61B2018/1467A61B2018/162A61B17/00A61B18/14A61B18/1442A61B18/1482A61B2018/00077A61B2018/00083A61B2018/00178
Inventor 海科·沙尔阿希姆·布罗德贝克罗尔夫·维勒福尔克尔·梅耶尔托比亚斯·阿曼
Owner 爱尔博电子医疗仪器股份有限公司
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