JPS6238665Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is mainly used in extracerebral surgery, etc., and allows the suction power of cerebrospinal fluid, blood, pus, etc. from the affected area to be smoothly adjusted with the fingers. This relates to micro suction tubes.

In the past, the diameter of the suction tube was constant and the suction adjustment hole was a round hole, which caused the suction power to decrease due to clogging with foreign matter, and the suction adjustment hole could not be adjusted smoothly by hand. However, even if the suction adjustment hole is opened, the pressure does not reach zero, causing damage to the affected area by suctioning into small blood vessels and diameters.

The present invention has been devised in view of these points, and its contents will be explained below with reference to the illustrated embodiments.

1 is a tapered suction tube body made of metal, and is composed of a bendable flexible tube portion 2, an adjustment body portion 4 having a suction pressure adjustment hole 3, and a rigid connecting tube portion 5.

Reference numeral 6 denotes a tapered suction hole formed in the tapered suction tube main body 1, which is tapered at the distal end 7 and becomes thicker toward the proximal end 8.

The suction pressure adjustment hole 3 described above is formed in an open state above the tapered suction hole 6 passing through the adjustment body portion 4, and is bored in the shape of a teardrop, as shown in FIGS. 2 to 5. Of course, it may be formed into various shapes such as.

In short, any shape may be used as long as the suction pressure adjustment hole 3 is gradually opened or closed by sliding movement of the finger and the suction pressure can be adjusted smoothly.

Specifically, it is preferable to form a linear taper or a curved taper in the longitudinal direction.

When this suction pressure adjustment hole 3 is closed with a finger, the suction pressure by the suction pump 9 can be increased, and when it is opened, the suction pressure can be decreased.

That is, by controlling the amount of intake air from the suction pressure adjustment hole 3 with fingers, the suction force from the tip 7 of the suction tube body 1 can be adjusted.

The suction tube cleaning tool 10 shown in FIG. It is inserted into the tapered suction hole 6 from the proximal end 8 side to clean foreign matter inside the suction hole 6.

This tapered spiral portion 11 is formed into a wave shape in which the spiral shape collapses toward the distal end portion 14 .

By employing the suction tube cleaning tool 10 having this tapered spiral portion 11, foreign matter can be cleaned smoothly.

Next, the mode of use of the present invention having the above configuration will be explained.

First, the flexible tube portion 2 of the suction tube body 1 is bent at an angle according to the operator's preference.

Thereafter, the distal end 7 of the suction tube body 1 is inserted into the affected area (not shown), and the suction pump 9 is activated to aspirate cerebrospinal fluid, blood, pus, etc.

At that time, the operator's finger is placed on the suction pressure adjustment hole 3 in the regulator part 4 of the suction tube main body 1, and the finger is slid little by little in the longitudinal direction, and the suction pressure adjustment hole 3 is slightly adjusted. When opened one by one, air flows through the suction pressure adjustment hole 3.
The suction pressure at the tip 7 smoothly and gradually decreases, and the amount of suction can be adjusted.

Thus, the present invention has the structure and operation as described above, and in particular, the tapered suction hole is formed to eliminate clogging with foreign matter and prevent a drop in suction pressure. Furthermore, the shape of the suction adjustment hole is formed into a linear taper hole that gradually expands along the longitudinal direction, a curved taper hole, etc., so that continuous fine adjustment of the suction pressure can be performed smoothly with fingers, and it is possible to easily adjust the suction pressure by controlling small blood vessels and nerves. This has the effect of eliminating the risk of damage caused by inhaling foreign matter.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the product of the present invention, FIGS. 2 to 5 are views showing various embodiments of the suction pressure adjustment hole, and FIG.
The figure is a plan view of the suction tube cleaning tool. 1... Suction tube body, 3... Suction pressure adjustment hole, 4...
... Adjustment body part, 6... Tapered suction hole.

Claims (1)

[Scope of utility model registration request] A tapered suction tube main body 1 is composed of a bendable flexible tube section 2, an adjustment body section 4 having a suction pressure adjustment hole 3, and a rigid connecting tube section 5. This micro suction tube is used in brain surgery, etc., in which a shaped suction hole 6 is formed, and the shape of the suction pressure adjustment hole 3 is formed into a linear taper hole, a curved taper hole, etc. that gradually widens along the longitudinal direction.