SU1217421A1 - Enteric probe - Google Patents

Description

The invention relates to medicine, in particular to gastroenterology, and can be used to decompress the gastrointestinal tract, test studies of the functional state of the intestine to establish indications for probe feeding and prolonged enteral feeding with non-surgical placement of the probe under conditions of impaired gastrointestinal motor function. tract.

The purpose of the invention is to prevent injury to the intestinal mucosa when the probe is non-operatively inserted and to prevent aspiration cessation due to the overlap of the lumen of the perforated portion of the aspiration channel when the probe is bent.

FIG. 1 shows the proposed probe section; in fig. 2 shows section A-A in FIG. one.

Intestinal probe contains aspiration channel 1 with side holes 2, perfusion channel 3 with side hole 4, metal head 5, radiopaque flexible silicone core 6 with a length of 33- 37 mm and silicone socket 7 for a guide in the distal end. A second radiopaque flexible silicone core 8 is located inside the perfusion channel 3 opposite the perforated area of the aspiration channel 1 at a length of 83-87 mm. In the area of the side opening 4 of channel 3 there is a radiopaque mark 9, made in the form of a stopper covering the lumen of channel 3 above opening 4 (towards the head 5). The distance c (between hole 4 and the nearest hole 2 is 245-255 mm.

The proposed probe works as follows.

The probe is carried out intraoperatively or in the early postoperative period using a fibrogastroscope. The probe smeared with vaseline with a metal guide (not shown) introduced into the aspiration channel 1, the end of which is inserted all the way into the socket 7, is passed through the nasal passage into the stomach. Then an endoscope is inserted into the stomach and the distal end of the probe (for example, between the head 5 and the stem / 6) is gripped with its pin, after which the probe is passed into the duodenum and further into the small intestine.

Thus, the metal head 5 is located at a distance of 50-60 mm behind the truss link. After that, the probe with the guide is fixed at the nasal passage,

slowly remove the endoscope, and then remove the guide.

For aspiration of intestinal contents, the aspiration channel t is connected to a standard suction.

and aspirate the intestinal contents. In order to carry out test studies of the preservation of the digestive and absorption functions of the intestine in order to establish indications for probe feeding, the perfusion channel 3 is connected to the drip and the aspiration channel 1 to the suction. After that, through the perfusion channel 3 through the hole 4 drip

A test nutrient mixture is introduced into the intestine, while suction is performed through the openings 2 at the same time. According to the difference between the injected and aspirated volumes, the degree of absorption of the mixture is judged and, thus, the possibility of its use for long-term enoterapny nutrition.

When a contraindication caused by impaired absorption and abundant secretion into the intestinal lumen is established, both channels (1 and 3) actively suck the fluid (with negative pressure to 40-50 mm Hg). When the indications for the conduction of the probe feeding along the aspirate channel T are established, the enteral feeding is carried out. The perfusion channel 3 at this time can be used to record the pressure inside the intestine in order to prevent an excessive increase in pressure in the intestinal lumen or to remove the undigested mixture.

The proposed probe can be used for both planned and emergency surgical interventions on the organs of the gastrointestinal tract, when paresis can be expected or when there is paresis. With the help of an endoscope, in cases of developing dynamic obstruction, the probe can be carried out in both surgical and non-surgical

the sick.

Insertion into the distal end of the probe x-ray € рntrastnogo flexible silicone rod 6 between the head 5

3

and nest 7, as well as making nest 7 of silicone rubber, reduces the overall rigidity of the distal end, giving it the ability to bend in the zone of the flexible rod and the flexible nest 7 to adequately bowel bends. Also, some increase in the length of the distal end of the probe (by the length of the rod 6) reduces the danger of the probe being sharply bent, since the entire distal end fits better into bowel bends. All this facilitates non-operational institution of the probe. Exceeding the length of the rod 6 above the experimentally set limit unnecessarily increases the length of the distal end, making it difficult to hold the probe. Reducing the length of the rod 6 below the set limit leads to an increase in the stiffness of the dispersed end of the probe, which also makes it difficult to carry out.

The introduction of a radiopaque-growing flexible silicone rod 8 into the channel 3 along the side holes 2 counteracts the reduction of the skeleton of the distal end of the probe in the area of the holes 2, which reduces the danger of sharp bending of the probe in this zone. This improves the aspiration of intestinal contents. Increasing the length of the rod 8 above the experimentally set limit reduces the flexibility of the distal end of the probe, and reducing the length of the specified rod

j you js 20

17421 4.

but below the limit creates the danger of bending the probe

The x-ray contrast of the rods 6 and 8 increases the overall x-ray-5 contrast of the distal end of the probe, which facilitates the determination of the location of the probe during non-surgical establishment and during its use.

The selected experimental distance is a. between the hole 4 and the nearest hole 2 within 245-255 mm provides the length of the studied segment of the intestine, which is necessary for conducting a test study of its digestive and absorption functions. Increasing this distance above the selected limit leads to such a decrease in the volume of enteral contents aspirated through apertures 2, which prevents the biochemical analysis of fluid entering the outside through the suction channel 1. As the specified distance decreases below the selected limit, through the opening 4 of the perfusion channel 3, too quickly aspirated through the holes 2 of the aspiration channel 1, which prevents the digestion and absorption of the components of the nutritionally injected mixture and thus distorts the results of the test examination

Editor M.Dshyn

Compiled by N.Soloveva

Tehred A. Babinets Corrector L. Pilipenko

Order 1025/8 Circulation 659 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch of PPP Zdtent, Uzhgorod, Proektna str., 4

Srig.G.

Claims (1)

INTESTINAL PROBE, containing aspiration and perfusion channels with lateral openings, a metal head and a guide slot, characterized in that, in order to prevent injury to the intestinal mucosa during non-surgical insertion of the probe and to prevent aspiration from ceasing due to the lumen of the perforated section of the aspiration channel when the probe is bent, the latter is additionally equipped with two rods of silicone rubber, one of which is located inside the perfusion- _β channel foot opposite perforated - ® section of the suction channel, and the guide slot is made of silicone rubber. figure 1 SU, „1217421