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Surgical Blade Patent
 

Ultrasonic surgical blade with improved cutting and coagulation features

The present invention is directed to an ultrasonic surgical blade including a top surface, a bottom surface and a cutting-edge. The cutting-edge is defined by a cutting-surface intermediate the top surface and the bottom surface, and the top surface has a width greater than the width of the bottom surface. The blade may be straight or curved. In one embodiment of the invention, at least a portion of the cutting-surface is substantially parallel to at least a portion of the top surface. In still another embodiment of the invention first and second side-walls intersect the top surface to form first and second cutting-edges that may be sharp or blunt. Alternately, a second cutting-edge may be defined by a second cutting surface intermediate the top and bottom surfaces. Depending on the angle between the intermediate cutting-surface and the top surface, the cutting-edge may be sharp or blunt. In yet another embodiment of the present invention, a central ridge is provided on the bottom surface of the blade to eliminate blade burrowing and improve precision during coagulation. The cutting-edge is optimized to increase cutting speed of the blade while providing desirable hemostasis. The invention is of particular benefit for breast surgery, due to its cutting and coagulation characteristics.

Closed channel retractable surgical blade device and associated method

A retractable surgical blade includes a handle defining a channel and a surgical blade member. The handle has a front portion and a back portion. The front portion defines a channel which confines the surgical blade member. The back portion includes a front wall and may be solid. The surgical blade member includes a slider to which is secured a surgical blade. The slider has a portion which engages the channel so that the surgical blade member can move from a cutting position in which the surgical blade projects from the handle and can be employed in a surgical procedure to a parked position in which the surgical blade is disposed in the channel. When in the parked position, the surgical blade is unable to cut or stab persons associated with the surgical procedure. The device may include a locking device to lock the surgical blade member in the parked position. An associated method of performing a surgical procedure is also disclosed.

Surgical blade

A surgical blade for use in ophthalmic surgery has distal cutting edges formed by a pair of anterior-to-posterior bevels which meet at an angle greater than 90.degree. and preferably 140.degree., resulting in a blade with a surface area greater than that of similarly dimensioned prior art blades. An anterior shoulder is positioned intermediate the distal and proximal ends of the blade to direct the blade to dimple down when the blade has been inserted into the cornea a sufficient distance to bring the shoulder into contact with the corneal tissue, allowing the surgeon to make a reproducible, leak-free incision by using a straight-in hand motion. The distal cutting surface is rounded at its lateral edges to avoid snagging the incision when the blade is passed through the cornea.

Surgical blade removal and disposal device

A disposable case for deposing surgical blades includes a surgical blade removal device for removing a blade from a surgical knife handle. The case has an upper half and a bottom half connected by hinge means for allowing the upper half and the bottom half to be opened or closed, and also includes latches for securing the upper half and the bottom half together. Magnetic means are provided on the bottom half for retaining the blades thereon, with counting indicia provided thereon for designating and counting the blades that are to be disposed. A pad is provided on the outer surface of the upper half for receiving an adhesive tape, wherein the adhesive tape may be peeled from the pad and secured onto portions of the upper half and the bottom half to secure the case in a closed position. The blade removal device comprises a blade seat for receiving the blade, a handle seat for receiving the handle, a dividing wall provided between the blade seat and the handle seat and having a sharp curved edge for separating the blade from the handle, and a restraining wall for restraining the blade from rearward movement once the blade has been positioned in the blade seat and the handle withdrawn rearwardly.


Surgical blade package
SURGICAL BLADE COATINGS

PAT. NO. Title
1 7036660 Surgical blade package
2 6926727 Surgical blade for use with a surgical tool for making incisions for scleral eye implants
3 6547802 Surgical blade
4 6423082 Ultrasonic surgical blade with improved cutting and coagulation features
5 6254621 Closed channel retractable surgical blade device and associated method
6 6139559 Surgical blade
7 5729879 Surgical blade removal and disposal device
8 5706942 Surgical blade dispenser and disposal apparatus
9 5657541 Holder assembly for surgical blade
10 5531754 Retractable surgical blade device and associated method
11 5430942 Surgical blade holder and blade combination
12 5411510 Surgical blade and method for ocular surgery
13 5406684 Sanitary surgical blade removal instrument
14 5308311 Electrically heated surgical blade and methods of making
15 5272812 Surgical blade holder and blade combination
16 5146685 Multi-dimensional surgical blade holder and blade combination
17 4704760 Surgical blade cleaning device
18 4617738 Surgical blade handle
19 4497320 Surgical blade unit
20 4466539 Surgical blade remover
21 4395807 Surgical blade remover
22 4386457 Surgical blade remover-receptacle
23 4344532 Surgical blade remover
24 4275735 Surgical blade holder
25 4180162 Combination dispenser-disposal cartridge for a surgical blade
26 4157758 Surgical blade package assembly
27 4151941 Machine for detaching a surgical blade from a continuous strip in which it is formed and presenting it to a position for a subsequent operation
28 4106620 Surgical blade dispenser
29 20060157363 Surgical blade package
30 20060106408 Surgical blade for use with a surgical tool for making incisions for scleral eye implants
31 20060036269 Surgical blade for use with a surgical tool for making incisions for scleral eye implants
32 20050234484 Ultrasonic surgical blade having transverse and longitudinal vibration
33 20050096679 Ultrasonic surgical blade and instrument having a gain step
34 20020156493 Ultrasonic surgical blade with improved cutting and coagulation features
35 20020120285 Surgical blade for use with a surgical tool for making incisions for scleral eye implants
36 20010031950 SURGICAL BLADE COATINGS

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