Surgery – Instruments – Cutting – puncturing or piercing
Reexamination Certificate
1998-07-24
2001-04-17
Dawson, Glenn K. (Department: 3761)
Surgery
Instruments
Cutting, puncturing or piercing
C128S898000, C606S225000
Reexamination Certificate
active
06217597
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a cutting device. In particular, the present invention is directed to a surgical cutting device for use in remote controlled surgical procedures. The present invention is also directed to a method of operating the cutting device.
BACKGROUND OF THE INVENTION
Recent developments in the repair of abdominal aortic aneurysms permit minimally invasive surgical procedures through either an axillary or brachial incision or both. This requires the remote manipulation of a repair graft and surgical components. The proximal repair graft is positioned and manoeuvred within the vessel through the use of control lines that are attached to the perimeter of the graft lip and extend to the axillary/brachial incision. Upon completion of the repair procedure, it is necessary to remove the control lines from the vessel. Furthermore, it is desirable to remove as much of the control line as possible to prevent the buildup of thrombus on the remnant control line. There are currently no prior art devices available that are capable of closely cropping these control lines to prevent the referenced build-up.
OBJECTS OF THE INVENTION
It is therefore an object of the present invention to provide a cutting device for use in surgical procedures.
It is another object of the present invention to provide a cutting device that may be used in remote controlled surgical procedures.
It is another object of the present invention to provide a cutting device that may be used in intraluminal surgical procedures.
It is another object of the present invention to provide a cutting device that may be used in minimally invasive surgical procedures.
It is another object of the present invention to provide a cutting device that is capable of cutting control lines.
It is another object of the present invention to provide a cutting device that is capable of cutting suture material.
It is another object of the present invention to provide a method of cutting control lines.
It is another object of the present invention to provide a method of removing a control line during a remote controlled surgical procedure.
It is another object of the present invention to provide a method of removing suture material during a remote controlled surgical procedure.
It is another object of the present invention to provide a cutting method using a thermoelectric device.
It is another object of the present invention to minimize remnant line upon which thrombus can form.
It is another object of the present invention to provide a cutting device that permits close cropping of control lines to prevent thrombus build-up.
SUMMARY OF THE INVENTION
The present invention is directed to a surgical cutting device. The surgical cutting device may include a housing, an assembly for gripping the cutting device upon the object to be cut, and cutting assembly for cutting the object. The housing may be formed from a flexible material. The assembly for gripping the cutting device may be positioned within the housing. Furthermore, the cutting assembly may be positioned within the housing.
The present invention further includes an assembly for remotely actuating the cutting assembly. The actuating assembly may include electronic circuitry that delivers an electric current to the electrothermal cutting assembly or filament. The electrothermal cutting device includes at least one filament. The gripping assembly may include a gripping mechanism for gripping the control line. The securing assembly preferably engages the control line or suture within the housing.
The present invention is also directed to a method of cutting a control line or suture located within a vessel. The method includes the steps of releasably securing a cutting device to the control line, positioning the cutting device within the vessel at a desired location, and operating the cutting device to cut the control line within the vessel. The method may further includes the step of removing the cutting device from the vessel.
The step of releasably securing the cutting device to the control line may include the step of positioning a housing of the cutting device around a portion of the control line. Additionally, the step of operating the cutting device may include the step of applying focused heat to the control line.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only, and are not restrictive of the invention, as claimed. The accompanying drawings, which are incorporated herein by reference, and which constitute a part of this specification, illustrate certain embodiments of the invention, and together with the detailed description serve to explain the principles of the present invention.
REFERENCES:
patent: 4562596 (1986-01-01), Kornberg
patent: 4787899 (1988-11-01), Lazarus
patent: 5042707 (1991-08-01), Taheri
patent: 5676696 (1997-10-01), Marcade
patent: 5759150 (1998-06-01), Konou et al.
patent: 5899912 (1999-05-01), Eaves
patent: 5904679 (1999-05-01), Clayman
patent: 5910150 (1999-06-01), Saadat
Dawson Glenn K.
Eva Corporation
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