Unlock instant, AI-driven research and patent intelligence for your innovation.

Hf surgical device

A technology of high-frequency surgery and surgical equipment, applied in the direction of surgery, heating surgical instruments, parts of surgical instruments, etc., can solve the problems of unfavorable, expensive and economical sensors

Active Publication Date: 2012-10-24
ERBE ELEKTROMEDIZIN GMBH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently known systems have two drawbacks in this approach: generally the device contains a separate sensor for determining the impedance between the connected terminals, Or the measuring technology of the high-frequency generator, which is usually used to determine the current high-frequency operating data, is used for this purpose in combination with the high-frequency generator as the measurement power supply
However, this is expensive and economically disadvantageous due to the accuracy of the sensors required

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hf surgical device
  • Hf surgical device
  • Hf surgical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 A schematic view of a circuit 1 for a high-frequency surgical device with automatic activation is shown. figure 2 A flow chart of a method for operating a high-frequency surgical device with automatic start-up is shown. The circuit 1 has a high-frequency generator 65 for generating a high-frequency current. A first comparator 44 , a second comparator 50 , a third comparator 55 and a fourth comparator 60 are provided in the circuit 1 . The circuit 1 has four outputs 15 to which a monopolar electrode 70 or a bipolar electrode 71 are respectively connected. A first measuring device 5 is assigned to each connection 15 .

[0027] Firstly, the automatic start function for one or more outputs 15 is activated by switching on the respective first measuring device 5 of one or more outputs 15 . The automatic activation function can be activated for all outputs 15 of the high-frequency surgical device or only for some of the outputs 15 . The respective first me...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an HF surgical device having an autostart function for cutting and / or coagulating biological tissue by means of HF current, said HF surgical device comprising an HF generator (65) for producing the HF current, a selected output for connecting a monopolar or bipolar electrode (70, 71) to the HF surgical device, a first measuring device (5) associated with the output (15) for measuring a first measured value of an impedance of the electrode (70, 71) connected to the output (15), a first comparator (44) for comparing the first measured value to a first target value, for switching off the first measuring devices (5) and switching on the second measuring device (10) if the first measured value is less than the first target value, and for measuring a second measured value of the impedance for the connected electrode (70, 71), and a second comparator (50); for comparing the second measured value to a second target value and for switching on the HF current for the output (15) if the second measured value is less than the second target value.

Description

technical field [0001] The present invention relates to a high-frequency surgical device for cutting and / or coagulating biological tissue with an automatic activation function, and a method for automatically starting a high-frequency current of the high-frequency surgical device. Background technique [0002] There are high frequency surgical devices with automatic activation. Here, as soon as there is sufficient contact between the device and the tissue, a high-frequency current with preset parameters is activated. This can be done in both bipolar and unipolar applications. The device can be configured such that the high-frequency current is automatically activated in the event of contact with the forceps or clips to the tissue and thus not exceeding a preset impedance threshold (after a defined time delay has elapsed). [0003] The currently known systems have two drawbacks in this method: generally the device contains a separate sensor for determining the impedance betw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B17/00
CPCA61B5/053A61B2018/00702A61B2018/00875A61B18/1206A61B5/6885
Inventor P.塞利希M.弗里茨
Owner ERBE ELEKTROMEDIZIN GMBH