RU183277U1 - Device for collecting biological fluid from the body - Google Patents

Abstract

A useful model for collecting biological fluid from the body, relates to medical instruments and can be used in dentistry, intensive care for non-invasive sampling of oral fluid, in surgery for collecting fluid from the abdominal cavity, in gynecology for taking aspirate from the uterine cavity. The device includes a sterile test tube made of plastic material with a cap and a stopper in the form of an elastic cap, a test tube holder. In the holder, on the opposite side of the tube, there is a needle with a rubber safety valve directed inside the holder, and on the outside there is a flexible elastic hollow tube with a rounded end, and a piston with a rod is installed inside the tube from the back of the tube, and at the junction There are notches with the possibility of separating the stem from the piston.

Description

The utility model relates to medical instruments and can be used, for example, in dentistry, resuscitation for non-invasive sampling of oral fluid, in surgery for taking fluid from the abdominal cavity, in gynecology for taking aspirate from the uterine cavity.

A device for sampling fluid from the body (RU No. 2422158, publ. 06/27/2011), containing a flexible hollow tube, inside which is installed with the possibility of longitudinal movement of the piston with a handle at the proximal end. The handle is equipped with a graduated scale and a thread made on its outer lateral surface, the tube is a hollow cylinder with an internal thread, and the piston is rounded at the distal end, while the piston handle is mounted inside the hollow cylinder with the possibility of its external thread interacting with the internal thread of the cylinder, and the length of the rod with the piston is 1.01-1.05 L, where L is the length of the tube.

The disadvantage of this technical solution is the limited length and diameter of the tube, which does not allow it to penetrate into the narrow natural channels and fistulas, as well as through drainage tubes installed in organs and tissues, the difficulty in use.

A technical solution according to the patent "Device for blood sampling" (RU No. 2320263, 03/27/2008) is known, containing a guide sleeve and a tube, closed at its front end with a cap. The cover is provided with a cylindrical domed protrusion with a punctured plug for the guide sleeve to be inserted. The sleeve on the side facing the domed protrusion has a cannula with a rubber fuse, and on the opposite side has a connecting element or the front of the double cannula. The protrusion has an area configured to deform inwardly. The outer wall of the protrusion in this region and the inner wall of the made non-deformable sleeve in the additional region is made with a contour protruding relative to the rest of the external region of the protrusion and the remaining inner region of the sleeve. The contour when fitting a rigid sleeve is able to deform the wall of the protrusion radially inward to form a connection with a rigid kinematic connection, the holding force of which is greater than the restoring force of the rubber fuse.

The disadvantage of this technical solution is the difficulty in use, the presence of additional elements, clamping with prestressing of the sleeve, that is, holding force is required.

A known device for blood sampling - vacuette (https://yandex.ru/images/search?text=%D0%B2%D0%B0%D0%BA%D1%83%D1%82%D0%B5%D0%B9 % D0% BD% D0% B5% D1% 80% D1% 8B% 20% D0% B4% D0% BB% D1% 8F% 20% D0% B7% D0% B0% D0% B1% D0% BE% D1 % 80% D0% B0% 20% D0% BA% D1% 80% D0% BE% D0% B2% D0% B8% 20% D0% BE% D0% BF% D0% B8% D1% 81% D0% B0 % D0% BD% D0% B8% D0% B5 & img_url = https% 3A% 2F% 2Fwww.viena.by% 2Fwp-content% 2Fuploads% 2F2017% 2F08% 2Fgbovaccomp.jpg & pos = 39 & rpt = simage & lr = 4),

consisting of a disposable system for collecting blood from a vein and including a bilateral needle with a safety valve, a test tube holder, a sterile test tube made of plastic material with a cap and a stopper in the form of an elastic cap.

The disadvantage of this solution is the inability to access various cavities of the body.

The objective of the proposed utility model is to create a device devoid of drawbacks of analogues and prototype, as well as expanding the arsenal of means for collecting biological fluid from various body cavities.

The problem is solved using the proposed device for collecting biological fluid from body cavities, including a sterile test tube made of plastic material with a cap and a stopper in the form of an elastic cap, a test tube holder that is configured to connect to the test tube through the cap, a needle with a rubber is installed in the holder safety valve directed inside the holder and configured to pierce the plug, and in the opposite direction a flexible elastic hollow tube is installed a barrel with a rounded end, interconnected, while inside the tube on the back side of the tube there is a piston with a rod, and at the point of their connection there are notches with the possibility of separating the rod from the piston.

The technical result consists in the convenience of collecting biological fluid from various body cavities due to the proposed design.

Distinctive features are:

- in the holder, on the opposite side of the tube, there is a needle with a rubber safety valve directed inside the holder, and on its outside there is a flexible flexible hollow tube with a rounded end, interconnected, which allows the collection of biological fluid from various body cavities, for example, in dentistry, resuscitation for non-invasive sampling of oral fluid, in surgery for taking fluid from the abdominal cavity, in gynecology for taking aspirate from the uterine cavity;

- inside the test tube, a piston with a rod is installed on the back of the test tube, which allows you to adjust the intake of the required amount of biological fluid from any area of the body;

- at the junction of the rod with the piston there are notches for their disconnection, which allows you to install the tube in a tripod located in the container.

The proposed utility model is represented by drawings:

FIG. 1 - disposable holder.

FIG. 2 is a general view of a test tube with a piston.

FIG. 3 - device assembly.

The device comprises: a test tube holder 1 made of unbreakable plastic material, in which a needle 2 with a rubber safety valve 3 is installed and in the opposite direction a flexible elastic hollow tube 4 with a rounded end (Fig. 1), interconnected, a test tube 5 s the protrusion 6 and the lid 7 with a stopper 8 in the form of an elastic cap and a piston 9 installed in the test tube 5, a rod 10 with an emphasis 11 for fingers, a notch 12 at the junction of the piston and the rod (Fig. 2).

The device operates as follows (Fig. 3).

The holder 1 with a needle 2 installed in it with a rubber safety valve 3 and a flexible elastic hollow tube 4 with a rounded end is hermetically connected to the test tube 5 with the protrusion 6 through the cover 7 and fits onto the stopper 8 in the form of an elastic cap. In this case, first, the needle 2 with the safety valve 3 enters the stopper 8 in the form of an elastic cap, and when the needle 2 is further inserted, the safety valve 3 moves, pulled into an accordion and pierces the stopper 8 in the form of an elastic cap so that the needle 2 with the safety valve 3 is inside test tubes 5 with a piston 9 and a rod 10 installed in it, avoiding contact between them. After that, the holder 1, made of unbreakable plastic material, is securely mounted on the lid 7 with the plug 8 installed in it in the form of an elastic cap.

To take the biological fluid, a flexible elastic hollow tube 4 with a rounded end is inserted into the necessary cavity (for example, the abdominal, oral cavity, etc.), then, using the finger rest 11, the rod 10 starts to move toward itself; at the same time, the piston starts to move 9, thereby filling the test tube 5 with the cap 7 with biological fluid. After the test tube 5 is filled with liquid, and the piston 9 with the rod 10 abuts against the protrusion 6 of the test tube 5, the rod 10 is separated from the piston 9 by means of notches 12 and the holder 1 for the test tube is removed. In this case, the tube 8 in the form of an elastic cap ensures the tightness of the tube 5, which is filled with biological fluid and is placed in a tripod located in the container.

The device is disposable and sealed in sterile packaging.

Thus, a one-time use device for collecting biological fluid from the body, providing the collection of biological fluid from various cavities of the body, as well as ease of storage and use. The coating of the systems is made of unbreakable plastic material, which guarantees the safety of the biological fluid directly in the test tube, and the lack of contact of the biomaterial with the environment and people is important in order to protect against infection by infection for health workers and technical personnel.

Claims (1)

A device for collecting biological fluid from body cavities, characterized in that it has a sterile test tube made of plastic material with a cap and a stopper in the form of an elastic cap, a test tube holder that is connected to the test tube through the cap, a needle with a rubber valve is installed in the holder safety, directed inside the holder and made with the possibility of piercing the plug, and in the opposite direction there is a flexible flexible hollow tube with a rounded end, with interconnected, while inside the test tube, on the reverse side of the tube, a piston with a rod is installed, and at their junction there are notches with the possibility of separating the rod from the piston.

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