RU2746640C1 - Probe for passing channels (options) - Google Patents

Abstract

FIELD: medical technology.

SUBSTANCE: group of inventions relates to medical technology, it is intended for the study of hollow spaces in horizontal, vertical and inclined directions, straight or having a complex curved shape, a variable amount of lumen, as well as for filling the cavities between the piston and the cylinder, valves, rods and other cylindrical mechanisms with reciprocating motion for the purpose of their protection, lubrication, sealing and heat dissipation. The probe for the passage of channels contains an elastic elongated shell. The shell is toroidal and has two axially arranged walls. The shell is made of a flat plate wrapped on itself and glued at the end. A cavity is formed between the outer and inner walls, in which elastic rings are installed at an equal distance, perpendicular to the axis of the shell. In the second embodiment, the probe for the passage of channels contains an elastic elongated shell. The shell is toroidal and has two axially arranged walls. The shell is made of a flat plate wrapped on itself and glued at the end. A cavity is formed between the outer and inner walls, in which an elastic pipe is installed. In the third embodiment, the probe for the passage of channels contains an elastic elongated shell. The shell is toroidal and has two axially arranged walls. The shell is made of a flat plate wrapped on itself and glued at the end. A sealed cavity is formed between the outer and inner walls, which is subjected to the pressure of an elastic medium or is under vacuum.

EFFECT: use of the inventions makes it possible to increase the length of the probe passage through channels with different shapes and sizes.

3 cl, 4 dwg

Description

The claimed group of technical solutions refers mainly to the fields of medicine and geophysics and is intended for the study of hollow spaces (pipes, wells, hollow organs of the food and circulatory system, etc.) in horizontal vertical and inclined directions, straight or having a complex curved shape, variable value lumen, also for filling the cavities between the piston and the cylinder, valves with rods and other cylindrical mechanisms with a reciprocating movement in order to protect them, lubricate, seal and dissipate heat.

Known, for example, an endoscopic probe (RU 2246891 C2, 27.02.2005, [1]), containing a flexible sleeve, laid inside the base with the possibility of expanding and uniform feeding from the proximal to the distal end.

In the analogue [1], the probe contains a guide block, which is configured to bend the probe head relative to the base. The targeting block is used to change the direction of the probe on bends and to avoid obstructions in the gastrointestinal tract. Most preferably, the guide block comprises a series of opposed bellows and for effecting the rotation of the block, the bellows being designed to be inflated with a gas or liquid supplied through the tubes.

Also known is a catheter (EP 1891914 A, 02/27/2008, [2]) containing a catheter in which an elongated stent with a piston is located.

In analogue [2], the diameter of the piston corresponds to the diameter of the lumen of the catheter. When using the device [2], the pressurized medium moves the coiled stent through the catheter. The coiled stent is pulled through the catheter with a distal piston.

Known probe (RU 2012366 C1, 15.05.1994, [3]), containing a hollow elastic tube with a blind rounded working end. The guide of the probe is made in the form of a tightly wound helical cylindrical spring and is located in the thickness of the elastic tube wall.

The specified analogue [3] is, by the totality of essential features, the closest analogue of the same purpose to the claimed technical solutions. Therefore, it is accepted as a prototype.

The technical problem to be solved is the need to create a probe for passage of channels without limitation in length, as well as for passage of complexly curved, thin-walled, with a variable diameter, multidirectional cavities with minimal damage to their walls.

In the analogue [1], the capabilities of the device are limited by the overall dimensions of the endoscope, which do not allow the device to be used when moving in small cavities, in particular in vessels, and thus do not provide the ability to move the endoscope in the cavities and vessels of the body. In addition, the elements of the endoscope during operation completely overlap the lumen of the organ under study, which also excludes its use in vessels, and does not provide sufficient contact pressure of the inflated elements on the areas of the tissue under study without traumatic effects on the walls of the cavities, which makes it ineffective when moving the device throughout channel of cavities.

Analogue [2] has restrictions on the length of the passage of the cavities.

The disadvantage of the prototype [3] is the friction of the walls of the probe against the walls of the hollow organ during translational motion. Also, the probe is twisted, which makes it difficult to advance and is not safe for the patient, as it can damage the wall of the hollow organ.

The technical result provided by each invention from the group is to increase the length of the probe passage through channels with different shapes and sizes.

Other technical results are:

- elimination of friction of the walls of the probe against the walls of the channel;

- ensuring the passage of wells with variable cross-section and direction;

- ensuring the passage of the probe in the hollow tubular organs of the gastrointestinal tract, ureters and blood vessels;

- sealing, heat dissipation and lubrication in the cylinder - piston group.

The technical result according to option 1 is achieved by the fact that the probe for the passage of the channels contains an elastic elongated shell. It differs in that the shell is made toroidal and has two axially located walls, while the shell is made of a flat plate, wrapped over itself and glued at the end, while a cavity is formed between the outer and inner walls, in which elastic rings are installed at an equal distance, perpendicular shell axis.

The technical result according to option 2 is achieved by the fact that the probe for the passage of the channels contains an elastic elongated shell. It differs in that the shell is made toroidal and has two axially located walls, while the shell is made of a flat plate, wrapped over itself and glued at the end, while a cavity is formed between the outer and inner walls, in which an elastic pipe is installed.

The technical result according to option 3 is achieved by the fact that the probe for passage of the channels contains an elastic elongated shell. It differs in that the shell is made toroidal and has two axially located walls, while the shell is made of a flat plate, wrapped on itself and glued at the end, while between the outer and inner walls a sealed cavity is formed, which is subjected to the pressure of an elastic medium or is under vacuum ...

The author of the technical solutions of the claimed group made prototypes of these solutions, tests of which confirmed the achievement of the technical result.

Figure 1 shows a probe for passing channels according to option 1;

in fig. 2 - probe for passage of channels according to option 2;

in fig. 3 - probe for passage of channels according to option 3;

in fig. 4 - General view of the probe according to option 3 for passage of channels with a rod with a piston and a sleeve.

Implementation options for technical solutions.

The probe for passage of channels according to version 1 (Fig. 1) contains an elastic toroidal shell with two axially located walls (1, 2). The shell is made of a flat plate, wrapped over itself and glued at the end.

Between the outer and inner walls (1, 2), a sealed or non-sealed cavity (3) is formed, in which elastic rings (4) are installed at an equal distance, perpendicular to the shell axis.

The probe according to option 1 can be located between the piston with the rod and the cylinder in order to protect them (not shown). In addition, the probe can be used to penetrate wells and pass through the hollow tubular organs of the gastrointestinal tract, ureters and blood vessels. The dimensions of the probe depend on the application.

Description of the work of the technical solution for option 1.

The outer wall (1) is fixed motionlessly. For example, when a probe with a sheath length of 12 m is inserted into the esophagus, the outer wall (1) is fixed by hand. In this case, the shell moves throughout the human gastrointestinal tract. Such artificial fixation does not require close contact with the hollow cavities, and the length of the probe should ensure the passage of the entire cavity.

During the movement of the shell, the inner wall (2) comes out from the inside and passes into the outer wall (1) at one end, causing the shell to move in the direction of this end. Accordingly, at the other end, the outer wall (1) passes into the end, and then into the inner wall (2). The rings (4) rotate during this.

The probe for the passage of channels according to option 2 (Fig. 2) contains elastic toroidal shell with two axially located walls (1, 2). The shell is made of a flat plate, wrapped over itself and glued at the end. Between the outer and inner walls (1, 2), a sealed or non-sealed cavity (3) is formed, in which an elastic pipe (5) is installed. The probe according to option 2 can be located between the piston with the rod and the cylinder in order to protect them (not shown). In addition, the probe can be used to penetrate wells and pass through the hollow tubular organs of the gastrointestinal tract, ureters and blood vessels. The dimensions of the probe depend on the application.

Description of the work of the technical solution for option 2.

The outer wall (1) is fixed motionlessly. For example, when a probe with a sheath length of 12 m is inserted into the esophagus, the outer wall (1) is fixed by hand. In this case, the shell moves throughout the human gastrointestinal tract. Such artificial fixation does not require close contact with the hollow cavities, and the length of the probe should ensure the passage of the entire cavity.

During the movement of the shell, the inner wall (2) comes out from the inside and passes into the outer wall (1) at one end, causing the shell to move in the direction of this end. Accordingly, at the other end, the outer wall (1) passes into the end, and then into the inner wall (2). The pipe (5) provides rigidity and shape to the device.

The probe for the passage of channels according to option 3 (Fig. 3, 4) contains elastic toroidal shell with two axially located walls (1, 2). The shell is made of a flat plate, wrapped over itself and glued at the end. A sealed cavity (3) is formed between the outer and inner walls (1, 2), which is subjected to the pressure of an elastic medium (gas or liquid) or is under vacuum.

According to option 3, the probe can be located between the piston (6) with the rod (7) and the cylinder (8) for the purpose of their protection, lubrication, sealing, heat removal (Fig. 4). In addition, the probe can be used to penetrate wells and pass through the hollow tubular organs of the gastrointestinal tract, ureters and blood vessels. The dimensions of the probe depend on the application.

Description of the work of the technical solution for option 3.

The outer wall (1) is fixed motionless. For example, when a probe with a short-body sheath is introduced into a borehole, the outer wall (1) adheres tightly to the walls of the hollow space due to the pressure of the medium. During the movement of the shell, the inner wall (2) comes out from the inside and passes into the outer wall (1) at one end, causing the shell to move in the direction of this end. Accordingly, at the other end, the outer wall (1) passes into the end, and then into the inner wall (2).

Option 3 probe is also placed between the piston (6) with the rod (7) and the cylinder (8) for the purpose of their protection, lubrication, sealing and heat dissipation.

The claimed technical solution is implemented using commercially available devices and materials and will find wide application in those areas where the passage of hollow spaces is required without damaging their walls.

Claims (3)

1. A probe for passage of channels, containing an elastic elongated shell, characterized in that the shell is made toroidal and has two axially located walls, the shell is made of a flat plate, wrapped over itself and glued at the end, while between the outer and inner walls is formed a cavity in which elastic rings are installed at an equal distance, perpendicular to the shell axis. 2. A probe for passage of channels containing an elastic elongated shell, characterized in that the shell is made toroidal and has two axially located walls, while the shell is made of a flat plate wrapped over itself and glued at the end, while between the outer and inner walls is formed the cavity in which the elastic pipe is installed. 3. A probe for passage of channels containing an elastic elongated shell, characterized in that the shell is made toroidal and has two axially located walls, while the shell is made of a flat plate wrapped over itself and glued at the end, while between the outer and inner walls is formed a sealed cavity, which is subjected to the pressure of an elastic medium or is under vacuum.

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