JPH0247929Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a gallstone removal drill for removing gallstones stuck in bile ducts, etc.

Prior Art FIG. 3 is a perspective view for explaining an example of a conventional gallstone removal drill, and FIG. 4 is a perspective view showing an example of parts used in the gallstone removal drill of FIG. 2 is a drill, and 2 is a rotating shaft having the drill 1 at its tip. When in use, the other end 2a of the rotating shaft 2 is connected to a drive source (not shown). 3 is a basket; 4 is a flexible cylindrical body having the basket 3 at its tip; the rotary shaft 2 is inserted into the cylindrical body 4; Reference numeral 5 denotes a hollow body made of a ribbon-like thin plate wound spirally. A coaxial structure consisting of the rotating shaft 2 and the cylindrical body 4 is coaxially inserted into the body 5. A pair of control wires 6 and 7 are inserted into the hollow body 5, and the tip ends of the wires 6 and 7 are fixed at symmetrical positions at the tip of the hollow body 5. Reference numeral 8 denotes a control lever for advancing and retracting the cylinder 4. When the control lever 8 is pulled in the direction of arrow A, the basket 3 is pulled in the direction of arrow A', the basket 3 is closed, and the tube is inserted into the bile duct. It becomes easier, and when you push it in the B direction, basket 3 will also be released.
The basket 3 moves in the direction B' and becomes open as shown. Further, the pair of control wires 6, 7
are configured to be moved in opposite directions by, for example, a pinion 9a and hooks 9b, 9c provided at the end of the control knob 9, and when the control knob 9 is rotated in the direction of arrow C, one side is moved. At the same time as the control wire 6 is pulled, the other control wire is loosened and the tip of the hollow body 5 is bent in the direction of arrow C', and conversely, when the control knob 9 is rotated in the direction of arrow D, The control wire 7 is pulled and the control wire 6 is loosened so that the tip of the hollow body 5 is bent in the direction of arrow D', thereby allowing the drill 1, the basket 3, etc. These are inserted into the bile duct while controlling the direction. With the basket 3 in the retracted state in this manner, the basket 3 and the drill 1 are inserted into the bile duct, for example, and when the tip hits a gallstone, the operating lever 8 is activated.
When pushed in direction B, only the basket 3 moves further forward, and at the same time, the basket 3 opens, and the gallstones are placed inside the basket 3. When the drill 1 is rotated and the operating lever 8 is pulled in the direction of arrow A, the gallstones that have been placed in the basket 3 as described above will hit the drill 1 and be crushed by the drill 1. However, the conventional gallstone removal drill described above has a separate drive source for rotating the drill 1, and when used, the rotating shaft 2 must be connected to the drive source, and the entire device The disadvantage was that it was complicated and difficult to operate.

Purpose The present invention was made in view of the above-mentioned circumstances, and was made for the purpose of providing a gallstone removal drill that has a compact overall configuration and is easy to operate.

Configuration Fig. 1 is an overall perspective view for explaining an embodiment of the gallstone removal drill according to the present invention, and Fig. 2 is an exploded perspective view showing an example of parts used in the gallstone removal drill shown in Fig. 1. In the figure, the same reference numerals as in the case of FIG. 3 are given to the parts having the same function as the conventional technique shown in FIG. 3. Therefore, the present invention has a hand piece 10 in which a battery, a motor, etc. are built-in, and the drill 1 is rotated by the motor by the switch/volume 11. Moreover, the rotation speed is controlled, and the operation lever 8 moves the cylinder 4 forward and backward as described above, and the control knob 9 controls the drill 1 and the basket 3 at the tip. The direction of travel is controlled.

Effects As described above, according to the present invention, it is possible to provide a gallstone removal drill that has a compact overall structure and is very easy to operate.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram for explaining an embodiment of a gallstone removal drill according to the present invention, and FIG. 2 is an exploded perspective view showing an example of parts used in the gallstone removal drill shown in FIG. 1. FIG. 3 is a perspective view for explaining an example of a conventional gallstone removal drill, and FIG. 4 is an exploded perspective view showing an example of parts used in the gallstone removal drill shown in FIG. 3. 1... Drill, 2... Rotating shaft, 3... Basket, 4... Cylindrical body, 5... Hollow body, 6, 7... Wire, 8... Operating lever, 9... Knob, 9a...
Pinion, 9b, 9c...Rack, 10...Handpiece, 11...Switch and volume.

Claims (1)

[Scope of utility model registration request] A rotary shaft having a drill at its tip; a flexible cylinder through which the rotary shaft is inserted and which can move forward and backward and which has a basket at its distal end; a spiral hollow body through which the cylinder is inserted; a pair of control wires each having one end secured to a symmetrical point of the distal end of the body and extending within the hollow body to the other end of the hollow body;
Loosen one of the wires and simultaneously pull the other wire to move the drill and basket forward and backward while controlling the direction of the tip having the drill and basket, and rotate the drill to crush the gallstones captured by the basket. In the gallstone removal drill,
The other ends of the rotating shaft, the cylindrical body, and the hollow body are attached to a handpiece, and the handpiece has a built-in power battery and a motor for rotating the rotating shaft, and the cylindrical body is attached to the handpiece. A gallstone removal drill characterized in that it has an operating lever for advancing and retracting the wire, and a control knob for controlling the pair of wires.