High throughput endo-illuminator probe

A technology of illuminator and throughput, applied in the direction of instruments, endoscopes, percussion instruments, etc.

Active Publication Date: 2008-04-02
NOVARTIS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Another disadvantage of prior art small aperture (e.g. 25 aperture) illuminators is that they are generally designed to operate at smaller angle cones (e.g. ~30 degree half angle and ~ 22 degrees half angle) transmits transmitted light

Method used

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Examples

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Embodiment Construction

[0031] Preferred embodiments of the invention are shown in the drawings, and like reference numerals are used to indicate like and corresponding parts of the various drawings.

[0032] Various embodiments of the present invention provide high-gauge fiber-optic (eg, 20 and / or 25-gauge compatible fiber)-based internal illuminators for use in surgical procedures, such as in vitreous-retinal / posterior segment surgery device. Embodiments of the present invention may include a handpiece such as the Alcon-Grieshaber Revolution-DSP sold by Alcon Laboratories, Inc., of Fort Worth, Texas, operatively coupled to a cannula, such as a 25 gauge cannula TM handle. The inner dimensions of the cannula can be used to accommodate tapered end fibers according to the teachings of the present invention. Embodiments of the high throughput internal illuminator may be configured for use in the general field of eye surgery. However, those skilled in the art can conceive and appreciate that the scope...

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PUM

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Abstract

A high throughput endo-illuminator and illumination surgical system are disclosed. One embodiment of the high throughput endo-illumination surgical system comprises: a light source for providing a light beam; a proximal optical fiber, optically coupled to the light source for receiving and transmitting the light beam; a distal optical fiber, optically coupled to a distal end of the proximal optical fiber, for receiving the light beam and emitting the light beam to illuminate a surgical site, wherein the distal optical fiber comprises a tapered section having a proximal-end diameter larger than a distal-end diameter; a handpiece, operably coupled to the distal optical fiber; and a cannula, operably coupled to the handpiece, for housing and directing the distal optical fiber. The tapered section's proximal end diameter can be the same as the diameter of the proximal optical fiber, and can be, for example, a 20 gauge diameter. The tapered section's distal end diameter can be, for example, a 25 gauge compatible diameter. The cannula can be a 25 gauge inner-diameter cannula. The proximal optical fiber can preferably have an NA equal to or greater than the NA of the light source beam and the distal optical fiber preferably can have an NA greater than that of the proximal optical fiber and greater than that of the light source beam at any point in the distal optical fiber (since the light beam NA can increase as it travels through the tapered section).

Description

technical field [0001] The present invention generally relates to surgical instruments. In particular, the present invention relates to surgical instruments for illuminating an area during eye surgery. More particularly, the present invention relates to high throughput endo-illuminator probes for illuminating surgical fields. Background technique [0002] In ophthalmic surgery, especially in vitreoretinal surgery, it is desirable to use a wide-field surgical microscope system in order to view as large a portion of the retina as possible. Widefield objectives exist for such microscope systems, but they require wider illumination fields than provided by the conical illumination field of typical existing fiber optic illuminator probes. As a result, various techniques have been developed to increase the beam spread of the relatively incoherent light provided by fiber optic illuminators. These known widefield illuminators can thus illuminate larger portions of the retina as de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/07A61F9/007A61B9/00G02B6/00
CPCA61B19/52A61F9/007A61B2019/5206A61B90/36A61B2090/306A61B3/0008A61B9/00A61B1/07G02B6/00
Inventor 罗纳德·T·史密斯
Owner NOVARTIS AG
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