Device for arthroplasty

 

(57) Abstract:

The invention relates to medical equipment, namely to the means of arthroplasty and can be used to install the implant in stenothermy areas of the bronchi. The device comprises a sleeve with a piston, which is made removable, different diameter below implants of different diameters. Outdoor tapered end of the sleeve provided with a sliding petals that allows immediately after increasing diameter stenosis of bronchus to insert the implant. The technical result consists in the possibility of the simultaneous installation of the endoprosthesis and dilations. 2 C.p. f-crystals, 3 ill.

The present invention relates to medical equipment, namely, equipment replacement, and can be used for the introduction of elastic prostheses for the restoration of the patency of the hollow tubular organs (trachea, bronchi, esophagus).

A device for introduction of the implant [1], consisting of a long metal tube, in which the implant is placed and the piston, through which the implant is pushed into the lumen of the trachea (bronchi).

It is also known a device for introduction of the implant [2] containing W the GE sleeves implant punishes and takes the desired position at the end of the piston.

However, the known devices for joint replacement surgery require prior preparation of the prosthetic cavity, consisting of excision of pathologic tissue or dilations special tool. In emergency situations and extreme circumstances, for example in case of violation of ventilation stenosis III degree, it is necessary to increase the lumen of the stenosis and install the implant. In this case (after intubation tube called a bronchoscope and identify areas of prosthesis) to reduce the time of resuscitation and recovery ventilation should use the tool, which also increases the lumen of the stenosis and provides a lasting effect its elimination.

To eliminate these disadvantages and possibilities of using the device in an emergency on the tube-conductor wrapped around the sleeve, one end of which has a conical shape that is created by a sliding petals. The rod is wrapped around the piston, which is located in the sleeve. In the case of manufacturing the liner of non-radio-opaque material on it the entire length of the applied radio-opaque label.

The invention is illustrated by drawings (Fig. 1, 2). Ustroystvami petals (2). At the other end is the base of the sleeve (3), connected with a tube-guide (4). The sleeve is endoprosthesis (5). Between the prosthesis and the base of the sleeve is a piston (6) connected with the rod (7). The end surface of the piston and the base of the sleeves have deep notches that prevent turning of the piston at its connection with the rod. At the end of the rod and the tube guide has a handle (8, 9).

The Assembly of the device is performed as follows. In sleeve (1) from the end opposite the conical laid a folded implant (5), then close insert the piston (6). The plunger fits the base of the sleeve (3) so that the end surface of the base liner and the piston has entered into mutual engagement. After that, the base sleeve is fixed. Sleeve Assembly sealed in a plastic bag and sterilized.

The device operates as follows. Depending on endoscopic situation in the trachea and extent of the proposed recanalization is taken sleeve with the appropriate implant length and diameter. Of the package is extracted to the sleeve (1), the base (3) and the piston (6) in the sleeve. Tube Explorer and its stem attached to the base of the liner and porsha; Fig. 3A - extension region of the stenosis with the sleeve; Fig. 3b - additional extension region of stenosis using a tube called a bronchoscope; Fig 3b - installing tube called a bronchoscope and a sleeve on the level of the trachea, which should be the proximal end of the endoprosthesis, Fig. 3G - divergence petal cone liners and ejection of the implant in the region of the stenosis.

The device is inserted into the bronchoscope. Conical end of the sleeve increases the diameter of the stenosis (Fig. 3A). On the shell stenosis enter tube called a bronchoscope to increase the diameter of the area of the stenosis (Fig. 2B). Then the bronchoscope and the device is retrieved from the stenosis and the end of the bronchoscope and liners are installed at the proximal border of the stenosis (Fig. 3b). Then from the sleeve by compressing the handles in canal stenosis is pressed implant (Fig. 3G). The implant is installed. The entire device is removed from the bronchoscope. The device is used both for dilations stenosis of the trachea and bronchi, and installation of implants, which is especially important in emergency situations. Sleeve with a tapered end allows immediately after increasing diameter stenosis of bronchus to insert the implant. Previously used device for insertion of the endoprosthesis is not what it complicates the installation of the endoprosthesis of the selected diameter. And in the case of rupture of the trachea canal stenosis can "lose" in the process of manipulation of various tools.

In emergency situations it is important to have ready sterile implants and bearing liners of all sizes, excluding infection.

Sources of information

1. Dumon V. F. A dedicated tracheobronchial sent.-chest, 1990, 97, N 2, p. 328-332.

2. The application for invention N 5056537/14 from 19.05.92,

1. The device for insertion of the endoprosthesis consisting of a sleeve with the piston and tube, wire rod, characterized in that the open end of the sleeve is made in the form of a sliding petals for dilations of the internal cavity of the anatomical body.

2. The device under item 1, characterized in that the sleeve with the piston is made interchangeable with different size implants under different diameters.

3. The device under item 1, characterized in that the sleeve with the piston and endoprosthesis in presterilization form sealed in airtight envelopes for a single use.

 

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