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

Method of controlling a surgical system based on a load on the cutting tip of a handpiece

A handheld device and control system technology, applied in surgery, suction and irrigation systems, ophthalmic surgery, etc., can solve the problems of reduced effect, tip heating, and increased unwanted burns of tissue at the incision

Active Publication Date: 2009-08-12
ALCON INC
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surgery is less effective, and wasted energy can lead to unnecessary heating of the tip, which can increase the likelihood of unwanted burns to tissue at the incision site

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
  • Method of controlling a surgical system based on a load on the cutting tip of a handpiece
  • Method of controlling a surgical system based on a load on the cutting tip of a handpiece
  • Method of controlling a surgical system based on a load on the cutting tip of a handpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] This specification describes an embodiment of a method of controlling a surgical system, such as used in phacoemulsification. These embodiments provide a surgical system capable of detecting the stage of a surgical event such as an occlusion, such as the onset of an occlusion, a pre-occlusion condition, a complete occlusion, and the extent of an occlusion by detecting changes in the pressure levels of an aspiration system, an irrigation system, or a combination thereof. abort. By monitoring how the aspiration vacuum or irrigation pressure levels vary, the onset and cessation of an occlusion can be accurately detected. Once an occlusion is detected, the surgical system can be programmed to increase the power available to the handheld, either by increasing the travel of the tip or by increasing the duty cycle of the pulsed ultrasonic power.

[0046] To help avoid overheating of the tip, the surgical system monitors the irrigation flow rate and automatically reduces power...

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 present invention provides a method for controlling a surgical system according to the load on the tip of handpiece. The surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip.

Description

[0001] This application was submitted by Alcon, the international application date is March 21, 2005, the international application number is PCT / US2005 / 009274, the Chinese national application number is 200580009298.1, and the invention name is "According to the A divisional application of the invention patent application of "Method for Load Control Surgical System". technical field [0002] The present invention relates generally to the field of ophthalmic surgery, and more particularly to a method of controlling surgical parameters of a phacoemulsification system. Background technique [0003] The human eye functions to provide vision by conducting light through a transparent outer portion called the cornea and focusing the image via the lens onto the retina. The quality of the focused image depends on many factors including the size and shape of the eye, and the transparency of the cornea and lens. When age or disease causes the lens to become less transparent, vision d...

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): A61F9/007A61B17/32A61B17/00A61B17/20A61M1/00A61M3/02
CPCA61M1/0058A61M2205/3368A61M3/0258A61F9/00745A61B17/320068A61B2017/0003A61B2017/00017A61B2017/00973A61M3/0202A61M1/77A61M2205/50A61M3/0208A61M3/0216A61M3/022A61B2017/32007
Inventor 米哈伊尔·伯克尼拉斐尔·乔丹迈克尔·莫甘安·亚德洛斯基
Owner ALCON INC