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Instrument for the Coagulation and Dissection of Biological Tissue and Method for Operating such an Instrument

A technology of biological tissues and instruments, applied in the field of instruments for coagulation and dissection of biological tissues and for operating such instruments, can solve the problems of high manufacturing costs and achieve the effect of avoiding the formation of sparks or electric arcs

Active Publication Date: 2020-04-24
ERBE ELEKTROMEDIZIN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Manufacturing costs play a large role especially in the case of single-use instruments

Method used

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  • Instrument for the Coagulation and Dissection of Biological Tissue and Method for Operating such an Instrument
  • Instrument for the Coagulation and Dissection of Biological Tissue and Method for Operating such an Instrument
  • Instrument for the Coagulation and Dissection of Biological Tissue and Method for Operating such an Instrument

Examples

Experimental program
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Embodiment Construction

[0035] figure 1 A device 20 for coagulation and dissection is illustrated. The arrangement 20 comprises a device 21 which provides a supply voltage UV or a supply current IV at a first device output 22 . The second device output 23 is connected to ground M. The evaluation signal S is provided at the third device output 24 . In an exemplary embodiment, the evaluation signal S is a periodic signal, such as a voltage or a current, which has: a first half-wave S1 with one polarity; and a second half-wave S2 with a correspondingly other polarity. polarity. In an exemplary embodiment, the first half-wave S1 is negative, and the second half-wave S2 is positive, as Figure 4 as schematically depicted in . exist Figure 4 In , the evaluation signal S is shown as a rectangular signal. As an alternative, the evaluation signal S can also display any other waveform with positive and negative half-waves, for example a sinusoidal or triangular waveform.

[0036] Preferably, the evalu...

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Abstract

The present invention relates to an instrument for coagulation and dissection of biological tissue including a tool with coagulation electrodes and at least one cutting electrode. The electrodes are actuated via an operating circuit including an evaluation circuit, to which an external apparatus delivers an evaluation signal with first and second half-waves having opposite polarities. During at least one first half-wave, the evaluation circuit checks whether a first switch or a second switch are actuated on the instrument. Depending on the evaluation result, a triggering signal is transmittedto a switching unit. Depending on the triggering signal, the switching unit is switched into a first or second switching state. In the second switching state, no voltage suitable for dissection and nocurrent suitable for dissection, respectively, is applied to the cutting electrode. In the first switching state, a voltage suitable for dissection or a current suitable for dissection is applied tothe cutting electrode.

Description

technical field [0001] The invention relates to an instrument for coagulating and dissecting biological tissue. Background technique [0002] Such an apparatus is already known, for example, from publication EP 3132765 A1. The instrument includes a tool with a cutting electrode and several coagulation electrodes. By means of an operating circuit it is possible to supply these electrodes with electrical energy. To achieve this, the operating circuit comprises a transformer connected on its secondary side, for example via a cable, to a power switch. The instrument includes a cut activation switch and a coagulation activation switch. The freeze actuation switch is mechanically coupled with the power switch. When the coagulation activation switch is actuated, the electrical connection between the cutting electrode and the transformer is broken or reversed such that no cutting voltage is applied to the cutting electrode. [0003] Instruments for coagulating and / or dissecting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
CPCA61B17/32A61B18/1445A61B18/12A61B2018/00607A61B2018/00636A61B18/1233A61B2018/00708A61B2018/00928A61B2018/00958A61B2018/124A61B2018/1246A61B2018/1286A61B2018/1457A61B18/1482A61B2018/00916A61B2018/00827A61B2018/00892A61B2018/00922A61B2018/00934A61B2018/0094H03K17/687
Inventor T.里普林格
Owner ERBE ELEKTROMEDIZIN GMBH
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