JPH0647448Y2 - Endometrial cell collection tool - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for uterine cancer screening in medical facilities, and relates to collection of mucous membranes, cells and the like of the uterine body above the uterine ostium.

[0002]

2. Description of the Related Art There are rod-shaped screw brushes and plastic spatula-shaped or ring-shaped collection tools for collecting mucous membranes, cells and the like of the uterine body. The stopper is provided at the tip, and the stopper is rigid and has a size and hardness that cannot be stored in the sheath.

[0003]

[Problems to be Solved by the Invention]
When collecting cells etc. in the uterine cavity, the rod-shaped brush can be collected only from a relatively narrow area due to the shape, and when storing the brush in the sheath after collection, cells etc. adhering to the brush can be collected before the sheath. There is a problem that the amount of collection is reduced by scraping off at the end.

In addition, a spatula-shaped or ring-shaped collection tool made of plastic has a collection part that is flat and hard, the endometrium is easily scraped off with a thickness, and the shape of cells may be destroyed, rather than cytodiagnosis. It is a sampling tool similar to histology.

In the case of either the brush or the plastic collecting tool described above, the hard stopper at the tip is for preventing contamination by closing the front end opening of the sheath, and is not intended to be sucked by pulling it into the sheath. Can not.

[0006]

[Means and Actions for Solving the Problems] The present invention is intended to solve the above-mentioned problems. The brush is a loop and can collect cells and the like from a wide range of the uterine cavity. When inserting, the stopper closes the front end opening of the sheath to prevent contamination. Further, when the brush is housed in the sheath, the inside of the loop does not touch the front end of the sheath, so that the attached cells are not scraped off, and the required amount of collected cells can be secured.

Further, when the brush is accommodated in the sheath by providing an elastic stopper at the loop-shaped tip and the pulling is continued as it is, the stopper is deformed and closely adheres to the inside of the sheath to be pulled into a pump shape, near the front end of the sheath. A negative pressure part is generated in the inner part of the body, and the fallen contents such as the endometrium can be suctioned. Therefore, both the collection of shed cells and the collection by brush scraping are possible, so that the above problems can be solved.

[0008]

EXAMPLES Examples will be described with reference to the drawings. FIG. 1 shows an embodiment, in which stainless steel wires (2) are twisted together, and a synthetic resin such as nylon or animal hair is sandwiched therebetween to form a brush (1), and a spherical through hole is formed from one end of the wire. A soft rubber stopper (3) is passed through the brush portion, and the brush is bent into a loop to fix the wire to the handle (4) made of synthetic resin. In this example, one end of the wire was lengthened, penetrated through the hollow handle, folded back at the rear end, and covered and fixed by the rubber cover (6). Fixing can also be done by welding or adhesive.

Since the purpose of this brush is to collect endometrial cells, it is possible to prevent cells of the cervix and cervix from adhering and mixing during insertion into the uterus. 5) is provided.

The inner diameter of this sheath is slightly smaller than the diameter of the soft rubber stopper, and if the handle is pulled back and stored in the sheath, the stopper deforms and comes into close contact with the inner diameter of the sheath, and is pulled in as a sliding contact. A negative pressure part is generated near the tip of the sheath, and endometrial cells and the like can be sucked. Further, the rubber cover for fixing the wire also serves to prevent the sheath from falling off.

[0011]

[Effect of device]

1 A soft brush is suitable for collecting in a shape close to the original shape without destroying cells in the uterus. 2 The loop-shaped brush can collect cells and the like from a wider area in the uterine cavity. 3 When the looped brush is stored in the sheath after collection, a considerable amount of cells necessary for diagnosis can be secured inside the loop. 4 The elastic stopper closes the front end of the sheath and is effective in preventing contamination. 5 By making the stopper elastic, it can be drawn into the sheath, and it is also possible to suction and collect the fallen cells in the area where the brush cannot reach.

When a large amount of cells at multiple sites necessary for accurate diagnosis are to be secured, both the scraping collection with a brush and the collection with suction can be performed almost simultaneously. The effect is great.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a combination of a brush and a sheath.

FIG. 2 is a cross-sectional view in which a brush and a stopper are housed in a sheath.

FIG. 3 is a partially enlarged sectional view in which a brush and a stopper are housed in a sheath.

[Explanation of symbols]

 1 Brush 2 Wire 3 Stopper 4 Handle 5 Sheath 6 Rubber Cover

Claims (1)

[Scope of utility model registration request] 1. A wire (2) extending from a brush, wherein a brush (1) having flocked continuously is bent into a loop shape with a wire (2) as a twisted wire, and an elastic stopper (3) is provided at substantially the apex position of the loop. (2) is locked to the handle (4). An endometrial cell collecting tool having a structure in which the brush (1) is housed in a flexible sheath (5) and is moved in the sheath to generate a negative pressure portion in the sheath.