Patent application number | Description | Published |
20090131961 | MICRO SURGICAL CUTTING INSTRUMENTS - The present invention relates to methods and apparatus for micro surgical blades, knives and assemblies. | 05-21-2009 |
20090177217 | MICROSURGICAL CUTTING INSTRUMENTS - The present invention relates to methods and apparatus for self-sharpening micro surgical blades, knives and assemblies. | 07-09-2009 |
20100185222 | Vacuum-Assisted Microscale Cutting Device - A vacuum-assisted microscale cutting instrument applies a vacuum pressure to pull an area of tissue towards a microknife. The cutting instrument can be configured to make one or more stabbing cuts or a slicing cut, and the housing of the instrument is shaped to address any of a variety of tissue geometries to allow a vacuum seal to be created therewith. To achieve a consistent cut depth in the tissue, a depth stop may be used to prevent the knife from cutting deeper than a predetermined depth. | 07-22-2010 |
20100234864 | Three-Dimensional Cutting Instrument - A cutting instrument includes a blade and a cutting edge that is curved in a direction having a vector component that is transverse to a cutting direction of the instrument, thereby forming a three-dimensional cutting edge. In use, this structure allows the cutting instrument to be drawn across tissue, without necessarily rotating, and separate a strip from the tissue. Various geometries for the cutting instrument can be created by forming a planar blade, heating the blade, and then plastically deforming the blade around a mandrel to achieve the desired three-dimensional geometry. | 09-16-2010 |
20110071524 | OPHTHALMIC SURGICAL DEVICE FOR CAPSULOTOMY - A surgical device and procedure are provided for performing microsurgery, including a capsulotomy of a lens capsule of an eye. The device has an elastically deformable cutting element mounted within an elastomeric suction cup. The suction cup is attached to an arm for manipulating the device. The device can be inserted into the anterior chamber of the eye, through a corneal incision, to cut a piece from the anterior portion of the lens capsule of the eye. The device is secured against the lens capsule using suction applied by one or more suction elements. The device is then removed from the eye, with the cut piece of membrane retained within the device by suction. | 03-24-2011 |
20130197548 | OPHTHALMIC SURGICAL DEVICE FOR ACCESSING TISSUE AND FOR PERFORMING A CAPSULOTOMY - A surgical device and procedure are provided for smoothly and easily accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision in the cornea of the eye. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position on the lens capsule. A cutting element mounted to the suction cup is used to cut a portion of the lens capsule and to remove the portion from the eye. | 08-01-2013 |
20140142560 | OPHTHALMIC SURGICAL DEVICE FOR CAPSULOTOMY - A surgical device and procedure are provided for performing microsurgery, including a capsulotomy of a lens capsule of an eye. The device has an elastically deformable cutting element mounted within an elastomeric suction cup. The suction cup is attached to an arm for manipulating the device. The device can be inserted into the anterior chamber of the eye, through a corneal incision, to cut a piece from the anterior portion of the lens capsule of the eye. The device is secured against the lens capsule using suction applied by one or more suction elements. The device is then removed from the eye, with the cut piece of membrane retained within the device by suction. | 05-22-2014 |
20140207137 | CAPSULOTOMY DEVICE WITH SUCTION CUP COMPRESSION CHAMBER - A surgical device and procedure are provided for smoothly and easily accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision in the cornea of the eye. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position on the lens capsule. A cutting element mounted to the suction cup is used to cut a portion of the lens capsule and to remove the portion from the eye. | 07-24-2014 |
20140350554 | CAPSULOTOMY DEVICE - A surgical device and procedure for accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position. A cutting element mounted to the suction cup is used to cut a portion and to remove the portion. The cutting element may be mounted to a cutting element support structure in a way that prevents heating of the device. | 11-27-2014 |