Infusion-drainage device

 

(57) Abstract:

The invention relates to medical equipment, namely to devices used in surgery, and is intended for infusion or drainage of hollow organs and narrow cavities. The technical result of the invention is to provide x-ray contrast infusion and drainage device is rigidly fixed inner end, with an atraumatic needle and surgical thread with atraumatic deleting it at the right time, and this excludes complications after removal of similar products. The device is equipped with a fixing device on the inner end of the housing and solid branch of a body, which, as well as through the entire body, inside it, is flexible monoactive electrode in direct contact with the wick hydrophobic or hydrophilic thread with an atraumatic needle on the active end of the thread and rigidly connected with the monolithic branch housing the passive end of the locking thread. 2 Il.

The invention relates to medical equipment, namely to devices used in surgery, and is intended for infusion and drainage of hollow organs and narrow cavities.

Known truscello USSR N 543401, m CL 61 M 27/00, 25.01.77 - 2 C.) have the following disadvantages:

1. The inner end of such device does not have a fixation device and therefore able to migrate drained from the hollow body or inside it, making it difficult or completely disrupts the process of infusion or drainage.

2. When rigid fixation of the inner end of the infusion and drainage device within a hollow organ, such as the thoracic lymphatic duct, surgical suture or ligature, closed the removal of infusion and drainage device becomes traumatic and leads to a number of complications (bleeding, pain, tearing of the wall of a hollow organ, adhesions and others)

3. When removing such infusion and drainage devices in tissues remains suture material, which supports an inflammatory response.

4. Existing infusion-drain devices x-ray lack contrast and the contrast in the wall of the latter must be incorporated x-ray contrast chord.

5. After removing the usual infusion and drainage devices, which were recorded by ligature, a narrowing of the lumen of a hollow organ in the place of standing ligatures, which reduces the functionality of the hollow body.

The invention consists in that in the wall of the tubular housing infusion and drainage device is placed flexible monoactive electrode, the inner end of which is allocated out of the total housing in the form of a monolithic junction of the casing and parallel to the infusion and drainage housing and is in direct contact with the wick hydrophobic or hydrophilic thread (for example made of silk, woven nylon or Dacron) with atraumatic needle on the end. Body infusion and drainage device is inserted through the incision or through a stump in the lumen of a hollow organ, and a monolithic offshoot of the housing electrode is located outside the walls of the hollow body, the fixation device is a thread with an atraumatic needle on the end. The outer end of infusion and drainage device is displayed on the surface of the skin through a separate hole. The ligature contact the disorder so, that being briefly cut off after tying surgical knots, can be extracted from the tissues with the current time together with the electrode and the housing infusion and drainage device after burnout her discharge high-frequency current in the solid branch of the corps infusion and drainage devices, which is an insulating sheath for the electrode, and the electrode x-ray contrasting chord for infusion and drainage devices.

The invention is illustrated in Fig. 1 and 2. In Fig. 1 shows an infusion and drainage device of Fig. 2 - the same, in the working position. The device is prepared in advance for disposable and pre-sterilized in any way. The device consists of a tubular infusion and drainage of the housing 1, made for example of silicone rubber, the inner end of the housing has a fixing device, such as fixing groove 2, and monolithic offshoot of the housing 3 containing the inner end 4 of the electrode 10, which is held in the housing infusion-drain devices. Monolithic branch separated from the overall body and is parallel infusion-drainage body 1, the wall of which is placed a flexible monoactive is rpose infusion-drain device and inside the solid branch of the housing is in direct contact with the wick hydrophobic or hydrophilic thread 5, 7, which has an active end 5, provided with an atraumatic needle 6 and the passive end 7, which is rigidly fixed to the bifurcated end 3 of the housing 1 infusion and drainage device at the point 8, for example, soldered to the body, the lumen of the infusion and drainage device 9.

The device is used as follows (Fig. 2). After surgical exposure required of a hollow organ (duct, vessel, intestine) into the lumen of the body 14 is inserted body infusion and drainage device 1 and the monolithic branch 3 of the housing with the inner end 4 of the electrode 10 is located outside of the hollow body 11. The device is fixed in the lumen of a hollow organ using an atraumatic needle and thread, knotted at the fixation device 2 of the housing 1. The ends of the threads 5 and 7 are fixed conventional surgical site 6, located as close as possible to the monolithic branch 3 of the housing. The ends of the thread briefly cut off, and the skin surface 12 through a separate hole deduce the outer end of infusion and drainage device in the housing 1 which is flexible monoactive electrode 10, and the wound is sutured on tightly. Through the infusion lumen drainage device 9 is infusion or drainage of substances into the lumen or lumen of Porogaramu for high-frequency surgery, for example of the type EN-n, and to the outer end of the flexible monoactive electrode 10, a pre-released from the insulating sheath, attached monoactive electrode device for high frequency surgery and miss the high-frequency discharge. In the wet strands of tissue fluid and electric discharge on the inner end 4 monoactive electrode 10 instantly blows the active end of the ligature 5 is in close contact with the inner end monoactive electrode 10. Burnout happens inside a monolithic junction 3 of the housing 1 infusion and drainage devices, and the burnout so small that it is not possible to damage the hull of a monolithic branch 3, the surrounding tissues 11 and the hollow body 14, and the device together with a ligature 5, 7, which is fixed on a monolithic branch 3 of the housing 1 infusion and drainage device at the point 8, atraumatic is retrieved to the surface.

The thickness monoactive electrode is chosen empirically and is approximately equal to the thickness of the applied ligatures. Chosen experimentally and corresponds to division 6 of the rheostat device for high frequency surgery, the voltage of high-frequency current, it is necessary what is the inner end of the infusion and drainage device is rigidly fixed on the fixing device in the lumen of a hollow organ, and the available atraumatic needle allows not only ligation and circular seam, which will record not only the infusion and drainage device, but the hollow body, which further facilitates the process of infusion or drainage.

Infusion-drain device may noninvasive and completely removed from the cavity or hollow organ in the estimated time, not leaving in the tissue suture material, infusion and drainage device has a rent contrasting chord.

Conducted bench tests proposed infusion-drain devices (200 pieces). Dummy foam was placed on the passive electrode device for high frequency surgery, type EN-n. The model was attached a rubber tube into the lumen of which is inserted the inner end of the housing infusion and drainage devices, and monolithic branch housing infusion and drainage devices were placed on the outside of the rubber tube. Infusion-drain device is recorded in a rubber tube ligature with an atraumatic needle. Fixation was carried out simple surgical usli second layer of foam, through the opening in which the surface whenever the outer end of the housing infusion-drain devices. The top layer of foam podshivalsya to the bottom layer of foam. All the foam was soaked 9% solution of sodium chloride, and to the outer end of the electrode infusion-drain devices connected monoactive the electrode device for high frequency surgery. In the wet filaments solution of sodium chloride and high-frequency discharge thread locking infusion-drain device burned out, and the device is removed from the foam and microscopically under a magnifying glass MBS-9.

In all cases, infusion-drainage device is removed completely, the body infusion and drainage device and the rubber tube is not damaged, and fixing the ligature was left on the device.

Conducted experiments in 15 rabbits, which through the middle section of the neck was exposed external jugular vein, which was catheterizable proposed devices after heparinisation. Surgical wounds were usuals tightly, and the device is displayed on the surface of the skin. After exposure of the device from 1 to 5 days device of the animals were extracted by connecting to the outer end of the guy who kind of device for high frequency surgery, and on the skin of the rabbit, after her rich wetting tap water was connected to the passive electrode device for high frequency surgery. Passing through rabbit discharge of high-frequency current after burn-out locking ligatures, all devices were extracted atraumatic at exactly the specified time. The animals were killed for collection of tissues with the aim of histological research.

Device microscopically under a magnifying glass MBS-9. In all cases, the devices were intact. Histological studies have identified low degree of inflammation and the absence of suture material in the tissue.

Infusion-drainage device containing tubular body, characterized in that the inner tubular end of the housing has a monolithic branch, rigidly United with matchlock hydrophobic or hydrophilic ligature with an atraumatic needle on the end directly contacting the inside of the solid branch housing with flexible monoactive electrode held in the case of infusion-drain devices.

 

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