RU29853U1 - Foreign body removal device - Google Patents

Abstract

A device for removing foreign bodies, containing a handle, a working body, characterized in that the handle is made in the form of a hollow cylinder in which the piston is telescopically arranged with axial movement, the working body includes a needle-cannula and a suction tube that are attached to the distal ends, respectively , the piston and the handle, in addition, the handle has an annular vacuum chamber, and the piston has a spool hole when moving the piston to the right extreme position.

Description

DEVICE FOR REMOVING FOREIGN BODIES

The invention relates to medicine, namely to ophthalmology and can be used to remove foreign bodies from the cornea and conjunctiva of the eyeball, as well as from the skin of the face.

A known set of tools for removing foreign bodies from the cornea and conjunctiva of the eyeball is a needle, chisel, spear (EI Kovalevsky. Eye diseases. M, "Medicine, 1990, p. 362-364), which has significant disadvantages:

-for removal, it is necessary to introduce the working body of the instrument under a foreign body, which leads to additional injuries of surrounding tissues;

- it is not always possible to completely remove a foreign body, especially small particles;

- long wound healing after removal of a foreign body due to additional injuries;

-Duration of operation.

The tasks arising from the listed disadvantages of the known set of tools are solved by the proposed device comprising a handle, a working body, the handle being made in the form of a hollow cylinder, in which the piston is telescopically arranged with the possibility of axial movement, the working body includes a needle-cannula and a suction tube, which attached to the distal ends of the piston and the handle, respectively. In addition, the handle has an annular vacuum chamber, and the piston has a spool hole when moving the piston to the right extreme position.

These signs of the proposed device allow you to combine the operation of fixation and removal of a foreign body from the cornea or conjunctiva of the eyeball.

MGZH7 A61F9 / 007

Figure 1 presents a General view of the device in its original position; figure 2 is the same view from the distal side; in Fig.Z - the working body of the device is in communication with the vacuum system.

The proposed device contains:

- a handle 1, made in the form of a hollow cylinder, having an annular vacuum chamber 2, a disk 3 with an oil seal 4, a nozzle 5 for connection to a vacuum system; attached to the distal end of the handle 1 is a suction tube 5;

a piston 6 having an opening 7 for communication with an annular vacuum chamber 2, a cover 8; a needle-cannula 9 with a tip 10 is attached to the distal end of the piston 6 for scraping a foreign body from the eyeball.

- the piston 6 is telescopically located in the handle 1 with the possibility of axial movement in it. The cannula needle 9 is telescopically located in the suction tube 5 with the possibility of axial movement in it. The needle 9 and the suction tube 5 constitute the working body of the device. To fix the relative position of the handle 1 and the piston 6, a stud 11 is provided.

The initial position of the device. Piston 6 in the leftmost position. The annular vacuum chamber 2 and the spool hole 7 are disconnected. The cannula needle 9 with the tip 10 is pulled out of the suction tube 5.

The proposed device is used as follows.

The device in its initial position (inner tube 9 is extended) with the tip 10 lead to a foreign body, it is defixed. The outer tube 5 by means of the handle 1 extend and bring to the scraped foreign body. In this case, the spool hole 7 is combined with the vacuum annular chamber 2. A vacuum is created in the inner tube 9, the foreign body is sucked into the tube 9.

In addition to a foreign body, dead tissue, impurities, exudates are drawn into the affected area. The affected area of the eyeball becomes clean.

Example 1. Injured K., 18 years old.

The diagnosis is a foreign body in the cornea. After washing and anesthesia, the foreign body is removed using the proposed device. The wound healed on the 2nd day.

Example 2. Patient I., 12 years old.

The diagnosis is a lot of foreign bodies in the cornea of the eye. Removal is identical to that in example 1. The wounds healed on the 2nd day without consequences.

The practice of using the proposed device in the clinic of the Ufa Research Institute of Eye Diseases showed:

- manages to simultaneously defix and remove a magnetic or amagnetic foreign body, dead tissue, exudates;

- low injuries;

-convenience of the operation (comfort);

- reduction of time of intervention;

-does not cause postoperative complications;

- reduced tissue repair time.

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Claims (1)

A device for removing foreign bodies, containing a handle, a working body, characterized in that the handle is made in the form of a hollow cylinder in which the piston is telescopically arranged with axial movement, the working body includes a needle-cannula and a suction tube that are attached to the distal ends, respectively , the piston and the handle, in addition, the handle has an annular vacuum chamber, and the piston has a spool hole when moving the piston to the right extreme position.