RU2240141C1 - Probe for irrigating large intestine - Google Patents

Abstract

FIELD: medical engineering.

SUBSTANCE: device has three-canalled tube having gastric canal, two pressure canals isolated from each other and flexible working balloons. The working balloons have property to increase volume in working state. The balloons are sequentially spaced to a distance from each other and are usable for making fixation in patient rectum. Each of the flexible balloons is connected to the corresponding pressure canal. The pressure canals are connected to corresponding autonomous canals for introducing liquid via separation device. A control balloon is placed in every autonomous canal of the separation device to follow working balloon state. External diameter of tube is equal to 15 mm. Probe length is equal to 1400 mm. Distance between balloons is equal to 20 mm.

EFFECT: probe tightly adjacent to the intestine wall; prevented water leakage from the rectum.

2 cl, 1 dwg

Description

FIELD OF THE INVENTION

The invention relates to medicine and can be used in surgery of the colon (coloproctology) when performing measures for the conservative resolution of tumor colonic obstruction.

State of the art

At present, in emergency surgery of the colon, with the occurrence of large bowel obstruction due to the closure of the lumen of the colon with a tumor, the only effective method to remove stool from the colon and resolve obstruction before surgery is enemas.

It is known to use glass tips for enemas [1]. The disadvantage of this solution is also the low efficiency of activities carried out using such tips.

Also known is a single-channel probe used for enemas [2] in order to clean the rectum and end sections of the colon from fecal contents. The disadvantage of this solution is also low efficiency due to lack of tightness between the probe and the walls of the intestine, as well as the possibility of its rupture.

The closest analogue of the invention is a colon irrigation probe, which includes a tube of flexible material and a second tube of a smaller diameter installed in the inner cavity of a larger external tube. Tubes allow you to release the irrigation fluid first through a chamber or pipeline, as well as deliver the irrigation fluid to a remote part of the intestine. The enlarged end of the outer tube facilitates the fixation of the tube placed in the intestine so that it can be brought to the area that is irrigated. In one embodiment, a balloon is pressurized with air through a third tube installed inside a larger external tube, which can be inflated as soon as the device is inserted into the intestine to facilitate fixation (US No. 4842583 A, A 61 M 3/00, 1989).

Disclosure of invention

The problem solved by the invention is the creation of a probe that allows you to effectively carry out irrigation of the colon.

The problem is solved due to the fact that the probe is made in the form of a three-channel tube containing the gastric canal, two injection channels isolated from each other and an elastic working balloon configured to increase the volume in working condition, while the probe further comprises a second elastic working balloon, also made with the possibility of increasing the volume in working condition, while the cylinders are sequentially located at a distance from each other and are intended for fixation in the rectum of the patient, to each trunk bladders connected to a respective discharge channel, wherein the injection channels are connected to the breeding assembly with independent channels for the fluid and, in each autonomous channel dilution device is controlling the balloon, allowing the balloon to monitor the working condition.

In a preferred embodiment, the outer diameter of the tube is 15 mm, the length of the probe is 1400 mm, and the distance between the cylinders is 20 mm.

A useful medical and technical result from the use of the proposed solution is as follows. Sequential injection of 100 and 80 ml of saline into cylinders, respectively, into each cylinder ensures a tight location of the probe in the rectum and a tight connection with the walls of the intestine and prevention of leakage of water from the rectum of the patient. If it is impossible to enter the entire working part of the probe into the rectum, it is possible to carry out the procedure with the introduction of one balloon with injection of a smaller amount of liquid. The sizes and volumes of the cylinders, the dimensions of the working part of the probe were selected empirically, based on the average anatomical dimensions of the rectum. The sequential arrangement of the cylinders is due to the need to find them in the mid-ampullar section of the rectum (first balloon) and lower ampullar section (second balloon). Anatomically, the rectum bends along the frontal plane, so a gap of 20 mm is made between the cylinders, which makes it possible to reliably fix the probe in the patient's body.

The length of the probe is 1400 mm in order to perform enemas, draining water into a container on the floor, and not to lift the patient from the couch. This is very important for the convenience of performing the procedure, as many patients are weakened.

The design of the probe allows you to perform both cleaning and siphon enemas.

When the probe is in the rectum, the tightness between the balloon (in a swollen state) and the inner wall of the rectum is achieved by ease of regulation of the volume of fluid introduced into the balloon. The softness and elasticity of the materials used in the manufacture of the probe (silicone rubber) allows you to avoid injuries of the rectal mucosa during its introduction.

The invention is illustrated in the drawing, which shows a diagram of a probe for irrigation of the colon.

The implementation of the invention is disclosed by the example of a specific implementation of the probe.

The probe is made in the form of a three-channel tube 1 made of silicone rubber (hardness 60-70 units along Shore), 1400 mm long and 15 mm outer diameter. On the working part, 110 mm long, there are two successively located elastic working cylinders 2 and 3 with a distance between the cylinders of about 20 mm. For the convenience of introducing the probe in the idle (not inflated) state, the cylinders 2 and 3 have a diameter close to the diameter of the three-channel tube and exceed it by about 3-4 mm.

The injection channels of the probe are connected to a dilution unit having autonomous channels 5 for introducing liquid into the working cylinders 2 and 3. In the autonomous channels 5 there are control cylinders 4, which make it possible to monitor the condition of the working cylinders. The gastric channel 6 of the probe is intended for the introduction of fluid and irrigation of the colon.

The probe is as follows.

The probe is inserted into the rectum of the patient to a length of 110-120 mm in the unblown state of the working cylinders 2 and 3. The fluid through the injection channel is supplied to the first working cylinder 2 in an amount of about 100 ml, while the balloon is inflated, fixed in the rectum. The mobility of the probe is controlled by a medical professional by applying a slight axial force (back and forth). Upon reaching fixation of the first balloon 2, that is, when its walls are tightly attached to the inner wall of the rectum, liquid (up to 80 ml) is supplied through the second injection channel to the second balloon 3, which provides even greater tightness of the probe – rectum contact.

Since the device is designed so that the working cylinders 2 and 3 can be located above and below the bend of the rectum - in the middle ampullar section (first working balloon 2) and lower ampullar section (second working balloon 3), the probe is securely fixed in the patient's body, preventing the leakage of fluid from the rectum with sphincter weakness.

Control cylinders 4 allow you to monitor the condition of the elastic cylinders 2 and 3.

Then, liquid for irrigation of the colon (water, a solution of drugs, a decoction of medicinal plants, etc.) is supplied to the gastric channel 6 of the probe in the required volume (1-1.5 L) under the supervision of a medical professional, taking into account the patient’s well-being.

Then the gastric channel 6 of the probe is disconnected from the fluid source without changing the position of the probe in the patient’s body, and the end of the probe is lowered into a container into which water with feces is poured. A sufficient probe length (up to one and a half meters) allows you to carry out the entire procedure without lifting the patient from the couch.

If necessary, the procedure is repeated as many times as necessary for a complete cleansing of the intestines from feces.

Sources of information

1. Alexandrov I.I., Lytkin M.M., Petrov V.P. Emergency surgery for colon cancer. Minsk, 1980, p.303.

2. Erokhina I.A., Petrov V.P., Kanevich M.D. Intestinal obstruction. A guide for doctors. 1999, p. 488.

Claims (2)

1. The probe for irrigation of the colon, made in the form of a three-channel tube containing the gastric canal, two injection channels isolated from each other and an elastic working balloon made with the possibility of increasing the volume in working condition, characterized in that it further comprises a second elastic working balloon, also made with the possibility of increasing the volume in working condition, while the cylinders are sequentially located at a distance from each other and are intended for fixation in the rectum of the patient, each of elastic cylinders is connected to the corresponding discharge channel, the discharge channels being connected by a dilution unit with autonomous channels for introducing liquid, and a control cylinder is located in each autonomous channel of the dilution device to monitor the state of the working cylinder. 2. The probe according to claim 1, characterized in that the outer diameter of the tube is 15 mm, the length of the probe is 1400 mm, and the distance between the cylinders is 20 mm.