Title of Invention

"AN IMPROVED MONOPOLAR CAUTERY FOR TRANS-ORAL SURGERY FOR CRANTO VERTEBRAL JUNCTION ANOMALIES (CVJA)"

Abstract

This invention relates to an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA) comprising of : a handle member of a conducting material with an insulation sheathing thereon; a tip member of a conducting material integrally formed with said handle member having an insulation sheathing with the cutting edge of the tip member being exposed; the posterior of said handle member has a connecting element for connecting the cautery to a cautery head. (Fig- 1)

Full Text

FIELD OF INVENTION This invention relates to an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA). BACKGROUND OF INVENTION In trans-oral surgery (for CVJA) an entry is to be made through mouth, for excision of the odontoid process. This surgery is highly complicated, and the surgeon has to work through a very limited space. For the purpose of dissection monopolar cauteries are used but the conventional cauteries have the disadvantage of having a limited length of only 9-10 cm. With the consequence that the surgeon can not conveniently reach the surgical field and, therefore, it is quite difficult to operate. The known cautery consisted of a handle member having a wooden insulating covering. A tip member was removably held to the handle member. Such known monopolar cauteries were attended with several disadvantages, namely they are not long enough. A further disadvantage is that the handle member was very thick and obstructed the operating field. Yet a further disadvantage is that the tip member did not provide enough insulation along the sides as a result the mucosa was often scarred. A still further disadvantage is that the tip member was removably held to the handle member. OBJECTS OF THE INVENTION An object of this invention is to propose an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA). Another object of this invention is to propose an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA) which obviates the disadvantages referred to hereinabove and associated with the prior art. Still another object of this invention is to propose an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA) which no longer obstructs the operating field Yet another object of this invention is to propose an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA) which prevetns the mucosa from being scarred. Another object of this invention is to propose an improved construction of a monopolar cautery for trans-oral surgery which is efficient. DESCRIPTION OF INVENTION According to this invention there is provided an improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA) comprising of i) a handle member of a conducting material with an insulation sheathing thereon; ii) a tip member of a conducting material integrally formed with said handle member having an insulation sheathing with the cutting edge of the tip member being exposed; iii) the posterior of said handle member has a connecting element for connecting the cautery to a cautery head. DESCRIPTION WITH REFERENCE TO DARWINGS Further objects and advantages of this invention will be more apparent from this ensuing description when read in conjunction with the accompanying drawing and wherein:- Fig. 1. shows the monopolar cautery of the present invention Referring to Fig. 1, cautery 1 comprises a handle member 2 and a tip member. Handle member 2 is made of any suitable conducting metal, such as steel, and has a plastic sheath made of a hard plastic 4 and covers almost the entire portion of the dissector except the tip and provides insulation against mucosal burns. The tip member 3 is also made of a conducting metal, such as steel, and has a rubber sheathing 5 extending along the length, except for the cutting tip 6. Tip member 5 is integrally formed with handle member. It would be apparent that as the non conductive sheathing 5 on tip member is of rubber, the length of the cutting tip 6 can be enlarged, required, by peeling a part of the rubber sheathing. The posterior part of handle 2 has a hole for receiving an electrical jack 7 so that the cautery may be connected to a cautery head through an electrical cable. The entire length of the instrument is for example 21 cm and this provides adequate length for all trans-oral surgeries. The instrument is also narrow and thus does not obstruct the field during surgery. A switch may be provided with the handle so as to connect the cautery to the power source. WE CLAIM:- 1. An improved monopolar cautery for trans-oral surgery for cranio vertebral junction anomalies (CVJA) comprising of i) a handle member of a conducting material with an insulation sheathing thereon; ii) a tip member of a conducting material integrally formed with said handle member having an insulation sheathing with the cutting edge of the tip member being exposed; iii) the posterior of said handle member has a connecting element for connecting the cautery to a cautery head. 2. An improved monopolar cautery as claimed in claim 1 wherein the insulation sheathing on said handle, has a plastic sheathing. 3. An improved monopolar cautery as claimed in claim 1 wherein the insulation sheathing on said tip member has a rubber sheathing. 4. An improved monopolar cautery for trans-oral surgery substantially as herein described and illustrated.

Documents:

848-del-2002-abstract.pdf

848-del-2002-claims.pdf

848-del-2002-correspondence-others.pdf

848-del-2002-correspondence-po.pdf

848-del-2002-description (complete).pdf

848-del-2002-drawings.pdf

848-del-2002-form-1.pdf

848-del-2002-form-19.pdf

848-del-2002-form-2.pdf

848-del-2002-form-3.pdf

848-del-2002-gpa.pdf

abstract.jpg