This invention relates to an endoscopic lumber discectomy device. The device is used during the operation of a patient.
A device for endoscopic operation is known in the art and is being imported in India. The device comprises a cylindrical tube having a ring attachment mounted on the top end thereof for holding a special kind of telescope, which enters in the cylindrical tube. However, there are certain disadvantages associated with the conventional device. One of the main disadvantages is that the ring attachment is mounted on the proximal/upper end of the cylindrical tube and therefore the working depth of the device is increased and thus the device is not a users friendly device.
Another disadvantage is that the telescope and the working instrument are inserted through the same opening in the cylindrical tube and thus it is difficult to carry on the work smoothly during the operation.
Yet another disadvantage is that the device is very costly and is not manufactured in India.
Still another disadvantage associated with the conventional device is that the working space in the tube is very less and angular displacements in the working tube are very difficult.
Therefore, the main object of the present invention is to provide a novel device, which obviates the disadvantages associated with the conventional device.
Another object of this invention is to provide a novel device wherein the use of specific/special telescope and other instruments is not required.
Yet another object of this invention is that to provide a device wherein a separate side entry is provided in the working tube for mounting telescope and which avoids crowding and interference with other working instruments
Still another object of this invention is to provide a novel device having a working tube of the more space for manipulation and anglution of instruments.
According to this invention there is provided an endoscopic lumber discectomy device comprising a working tube having a bracket secured at the upper end thereof for holding the device with the table mounted arm, charactereised in that an oval hole is provided in said working tube and in the proximity of the lower end thereof, a guide tube provided with said bracket at an inclination thereto for the introduction of canula and trocar into the oval hole to fix the telescope therein.
In accordance with this invention the device has a working port preferably of conical shape having the upper end as the wider end and the lower end as the narrow end. A bracket is provided at the upper end/wide end at an angle preferably 110° and having a holder at the other end thereof provided for holding. An oval hole is provided above the bottom/lower/narrow end of the working port and on the same side as that of the bracket. A guiding tube is secured with the bracket at an angle of 25° with respect to the working tube and is provided for guiding the insertion of canula and trocar such that the lower end of the canula and trocar enters the oval hole provided in the working tube so as to fix the telescope therewith.
An endoscopic lumber discectomy device according to the preferred embodiment is herein described and illustrated in the accompanying drawings wherein:-
Fig. 1 shows the perspective side view of the device Fig. 2 shows the perspective view of canula and trocar.
Referring to the drawings particularly fig. 1 the device comprises a working tube 1 of a cylindrical and preferably conical shape tube 1 has own upper end 1A as the wide end and a lower end IB as the narrow end. A bracket 2 is provided at the upper proximal end of tube 1 and disposed at an angle of 110-120° and preferably at 110°, to said tube. Bracket 2 has a holder 3 provided at one end thereof for securing the device with table mounted arm (not shown). An oval hole 4 provided in the working tube 1 and in the proximity of the lower end IB and on the same side as that of holder 3. A guide tube 5 is provided with the bracket 2 at an angle of 20-30° preferably 25° with respect to the working tube 1 for guiding the insertion of the canula and trocar (fig. 2) such that the lower end thereof just enters the oval hole 4 provided in the working tube 1 to fix the telescope therein.
During use of the device, the telescope is fixed in the oval hole 4 by means of canula and trocar of Fig. 2 and the working instruments are inserted through the working tube 1 to carry on the operation activities. As working tube is of the conical shape, the manipulation and angulation of the working instrument becomes easy. Also as a separate entry/hole 4 is provided for fixing the telescope with working tube 1, the unnecessary crowding and interference of the telescope with the working instruments has been completely avoided and thus the device of the present invention is of great use to the doctors for endoscopic lumber discectomy operations.

CLAIM
1. An endoscopic lumber discectomy device comprising a working tube having a bracket secured at the upper end thereof for holding the device with the table mounted arm, characterized in that an oval hole is provided in said working tube and in the proximity of the lower end thereof, a guide tube provided with said bracket at an inclination thereto for the introduction of canula and trocar into the oval hole to fix the telescope therein.
2. A device as claimed in claim 1 wherein said working tube is preferably of conical shape for easy manipulation and angulation of the working instrument.
3. An endoscopic lumber discectomy device substantially as herein described and illustrated in the drawings.