The device for replacement of catheters

 

(57) Abstract:

The invention relates to the field of medical engineering, in particular, to surgical instruments used for replacement of catheters. The invention consists in the implementation of the guiding element for the drainage tube of two detachable parts, a cylindrical probe and a removable rod. This embodiment simplifies the replacement of the catheter and as a consequence reduces the risk of complications. 10 Il.

The invention relates to surgical instruments, in particular used for replacement of catheters and may find application in the surgical departments of medical institutions.

Currently, if necessary, replacement of the catheter of small diameter mounted in cavity formation on the catheter with a larger diameter flexible metallic conduit, and a set of bugey [1]

The disadvantage of the use of conductors and bugei is a high risk of leakage of the contents along the needle channel. In addition, the complex procedure of replacement of catheters.

The aim of the present invention is to simplify the replacement of catheters and reduce the risk of complications.

Set the ASI from the cylindrical probe, on which there is mounted a flexible drainage tube, and a distal rod having a threaded connection with the probe and meats to connect with replaceable catheter.

Thus due to the straightening of a previously installed catheter distal rod, fixing a previously installed catheter using slicing, and relegated drainage tube for the previously installed catheter before getting her into the cavity provides maximum simplicity, low traumatism and prevents leakage of the contents drained cavity along the needle channel.

In Fig. 1 shows a General view of the device of Fig. 2 cylindrical probe of Fig. 3 flexible drain pipe; Fig. 4 interchangeable distal rod; Fig. 5-10 scheme replacement of catheters.

The device comprises a cylindrical probe 2. On the cylindrical probe 2 is placed a flexible drainage tube 3, the internal diameter greater than the outer diameter of the replaceable catheter. The length of the cylindrical probe 2 and installed drainage tube 3 is chosen arbitrarily. The hole diameter of the distal end of the drainage tube 3 corresponds to the outer diameter of the replaceable catheter.

To the probe by means of a threaded connection priceprice and stem length are selected depending on the internal diameter of the replaceable catheter and the depth location of the cavity.

Replacement of catheters is as follows:

First through the lumen of the replaceable catheter in the cavity is injected contrast agent and is guided fluoroscopy.

The unit is going to replace the catheter. For this purpose, the cylindrical probe is placed a flexible drainage tube, the diameter of which is larger than the diameter of the replaceable catheter, and the diameter of its distal end corresponds to the outside diameter of the replaceable catheter. Selected removable distal rod, having a length corresponding to the depth of the location of the cavity and the diameter of the cut corresponding to the inner diameter of the replaceable catheter. Replacement of the distal rod is connected with a cylindrical probe.

In the lumen of the replaceable catheter distal terminal device (Fig. 5) is screwed to the screw cutting (Fig. 6).

Use the handle of a cylindrical probe 2 is fixed, the position of the device and replacement of the catheter (Fig. 7).

The drainage tube 3 mounted on the cylindrical probe 2, is reduced in the cavity (Fig. 8).

Through the lumen of the drainage tube 3 is removed, the cylindrical probe 2 with fixed thereto distal rod 4 and exchangeable CA is teterow, containing a guide element, which is removable drainage tube, wherein the guide element is made detachable and consists of two parts: a cylindrical probe with thread on one end and a removable distal rod having a feedback thread for connection with a cylindrical probe and a screw thread for connection with the replaceable catheter.

 

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