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Surgical knife safety handle

A safety handle, scalpel technology, used in surgery, ophthalmic surgery, anatomical instruments, etc., can solve problems such as unwanted movement of the blade

Active Publication Date: 2006-07-05
BEAVER VISITEC INT US
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These concerns also apply to situations where the user is required to hold the retracted guard as a handle, so that any movement between the guard and the handle could result in unwanted movement of the blade

Method used

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  • Surgical knife safety handle
  • Surgical knife safety handle
  • Surgical knife safety handle

Examples

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Embodiment Construction

[0044] Embodiments of the invention described below disclose a scalpel safety handle for ophthalmic and non-ophthalmic use, said safety handle having a movable shield that is retracted to expose the blade when in use, The guard is extended to cover the sharp blade when not in use. The shield is located at the distal end of the handle, extends partially from within the handle, and includes a larger diameter shielded end that becomes part of the exposed handle when fully retracted. When fully extended, the guard covers the exposed edge of the blade without distorting the handle profile. The shroud engages a drive mechanism that is slidably mounted within the handle body and includes leaf springs that engage the detents in the fully extended and fully retracted positions and provide an audible and tactile engagement response . When fully extended, the engagement between the shroud and the drive mechanism also serves to prevent displacement of the shroud other than controlled by...

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PUM

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Abstract

A surgical knife safety device (10 or 100) having a handle (20 or 120), a blade (40 or 140) connected to the handle, and a guard (30 or 130) carried by the handle for sliding movement between a retracted position in which the blade is exposed for use, and an extended position for covering the sharp cutting edge of the blade. In the retracted position, an enlarged guard (30 or 130) radius is provided at the distal end of the handle (20 or 120) to allow improved handle control and blade orientation. The enlarged guard radius is positioned to allow the user to firmly grip a large distal handle portion which is preferably molded as a single piece with the blade holder (26 or 126), preventing unwanted blade or handle movement due to guard mechanism tolerances. A spring, such as leaf spring (52 or 152), and a pair of detents (54, 56) or slots (154,156) are provided to fix the guard (30 or 130) in the extended or retracted position, and provide resistance during movement between the two positions. Additionally, an antitravel mechanism is incorporated in the guard to prevent accidental retraction from the fully extended position.

Description

technical field [0001] The present invention relates to a system and method for a safety handle of a scalpel for ophthalmic and non-ophthalmic use having a movable shield that is retracted to expose the blade when in use, The guard is extended to cover the blade when not in use, and the guard includes a back-off prevention mechanism to ensure that the blade is covered until exposed by hand. This application is a continuation-in-part of US Patent Application Serial No. 10 / 420,614, filed April 22, 2003, by Michael J. Morawski et al., entitled "Safety Handle for Scalpel", the entire contents of which are hereby incorporated by reference. This application also claims priority to US Provisional Patent Application Serial No. 60 / 519,614, filed November 14, 2003, by Dana M. Cote et al., entitled "Safety Handle for Scalpel", the entire contents of which are hereby incorporated by reference as refer to. Background technique [0002] During various surgical procedures, physicians oft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/32A61B19/00A61F9/013
CPCA61B2019/4805A61F9/0133A61B17/3211A61B2017/32113A61B2090/0801
Inventor M·莫罗斯基D·克特P·特莱尔基尔D·斯鲍尔M·拉扎塞克兰B·拉普
Owner BEAVER VISITEC INT US