JPS6214809Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a tissue cell collection device.

As a method for collecting tissue cells within a body cavity, there is a method in which an endoscope is inserted into the body cavity and a collection tool is inserted into the body cavity using a forceps introduction tube of the endoscope. Fig. 1 and Fig. 2 show a conventional example, in which 1 is a collection tool, 2 is an operating wire,
A cell collection brush 3 is formed at its tip, and an operation wire operating section 4 is formed at its rear end. 5 is a mantle tube into which this operating wire 2 is inserted.

The collection tool 1 thus constructed is inserted through the forceps introduction tube of the endoscope 6 inserted into the body cavity as shown in FIG. However, at this time, as shown in the figure, the collecting worker holds the mantle tube 5 with one hand.
In order to support the end of the endoscope 6 and hold the operation wire operation part 4 with the other hand, the handle of the endoscope 6 is held by another person, so that the handle of the endoscope 6 cannot be seen through the eyepiece of the endoscope. It is impossible for the operator of the endoscope to rub the cell collection brush 3 on the patient while looking at the affected area. This is because cells are collected near the affected area by commands, or a third party is provided with the endoscope 6 and the collection tool 1 is operated while looking at the eyepiece of the endoscope 6. It was difficult to accurately observe the affected area and collect cells.

The purpose of this invention is to solve the above-mentioned drawbacks, and by making it possible to operate the collection wire with one hand, the endoscope operator can operate the collection tool while looking inside the affected area. The feature is that the cell collection can be carried out reliably.

An embodiment of the present invention will be described below with reference to FIG.

Reference numeral 8 denotes a mantle tube, and 9 denotes an operation wire that is passed through the mantle tube 8 so as to be able to advance and retreat.A cell collection brush 10 is attached to the tip of the wire, and an operation wire operating tool 11 is connected to the rear end. .

This operating wire operating tool 11 consists of a support part 12 and a movable part 13, and the support part 12 is connected to the mantle tube 8.
The movable part 13 is connected to the end of the operating wire 9, so that the movable part 13 is movable along the support part 12.

The support portion 12 includes a guide portion 1 having an elongated hole 14.
5 and a finger holder 16 into which the thumb is inserted are integrated, and on the opposite side of the finger holder 16 there is a hole through which the operating wire 9 is passed, and the tip of the operating wire 9 is made to protrude into the elongated hole 14.

The movable portion 13 is movably fitted between the guide portions 15 of the support portion 12, and is connected to the rear end of the operating wire 9 via a connector 17 within the elongated hole 14. Reference numeral 18 denotes a finger locking portion, which can be operated by holding it between the index finger and middle finger.

In the drawings, reference numeral 19 denotes a spring, which is not essential but is provided to improve operability and is stretched in a direction in which the cell sampling brush 10 is housed in the tip of the outer tube 9.

According to the sampling tool configured as described above, the thumb is inserted into the finger holder 16 of the support portion 12, and the locking portion 18 of the movable body 13 is held between the index finger and the middle finger. Therefore, since the cell collection brush 10 of the operating wire 9 is normally urged in the direction of entering the tip of the mantle tube 8 by the elastic force of the spring 19, if you apply force with your thumb, index finger, and middle finger, When the finger insert 16 and the locking part 18 are brought close to each other and the force is released, the elastic force of the spring 19 returns them to their original positions. In this manner, this operation is repeated and the cell collection brush 10 is rubbed against the affected area to perform scraping collection of cells.

Therefore, by being able to operate the collection tool with one hand, the operator of the endoscope can collect cells while checking the state in which the cell collection brush 10 is in contact with the affected area through the eyepiece. .

In the above-mentioned embodiment, if there is no spring, the operation wire can be pushed and pulled repeatedly using the thumb placed in the finger holder and the index finger and middle finger held between the locking portions.

According to the present invention having the above structure and operation, the support part fixed to the mantle tube and the movable part connected to the operating wire are mutually movable and locked, and the support part and the movable part are connected with the fingers of one hand. By making it possible to operate the endoscope, the operator of the endoscope can collect cells while looking at the affected area, making it possible to collect cells reliably.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional example of a cell collection device, Fig. 2 is a partially enlarged perspective view showing a conventional cell collection state, Fig. 3 is a sectional view showing an embodiment of the present invention, and Fig. 4 is a sectional view showing a conventional cell collection device. The figure is a partially enlarged perspective view showing the state of cell collection. 8... Mantle tube, 9... Operation wire, 10...
Cell collection brush, 11... Operation wire operating tool,
12... Support part, 13... Movable part, 16... Finger insertion, 18... Locking part.

Claims (1)

[Scope of utility model registration request] It consists of a manipulation wire with a cell collection brush at its tip and a mantle tube into which this manipulation wire is inserted so that it can move forward and backward.The mantle tube is inserted into the forceps introduction tube of the endoscope and the cell collection brush is inserted into the body cavity. guide you,
In the collection tool, a cell collection brush is protruded from the tip of the mantle tube to scrape and collect tissue cells in the body cavity, and the support part having a finger hole is connected to the rear end of the mantle tube, and the operation wire is connected to the support part having a finger hole formed therein. Collection of tissue cells, characterized in that a movable part having a finger stop part is connected to the rear end, and the movable part is assembled so as to be movable along the support part, so that the operation wire can be operated with one hand. Ingredients.