RU2553569C2 - Instrument for trapping, holding and dosed shifting of microparticles - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to instruments for trapping, holding and dosed shifting of microparticles, and can be applied in micro-surgery in work with microparticles. Instrument consists of body and working end, connected by cone-like passage. Lifted part of working end is connected with cone-like passage through elbow-forming curve. Lifted part of working end and elbow-forming curve have the same internal diameters, sufficient for free shifting of microparticles. Elastic silicone pneumatic-nozzle is put on upper part of body, and body is equipped with silicon handle.

EFFECT: invention application makes it possible to ensure reliable trapping, holding and dosed shifting of microparticles with size of tenth and hundredth parts of millimetre.

2 dwg

Description

A tool for capturing, holding and dosing the movement of microparticles relates to medicine, in particular to ophthalmology, and can be used in microsurgery when conducting research on experimental animals, in particular, can be used in microsurgery when working with microparticles.

Currently, existing tools in practice are not able to capture and transfer microparticles as small as tenths or hundredths of a millimeter. The most common and relatively close to the claimed tool is medical tweezers [1], the main purpose of which is mechanical gripping and holding, however, the dimensions of the working part of this tweezers allow you to capture and hold only relatively large objects.

A step forward is the creation of microsurgical forceps, the dimensions of the working part of which are much smaller and allow the capture and holding of a smaller area [2].

However, as our studies have shown, the dimensions of the working part of even microsurgical forceps are not able to capture and hold microparticles the size of tenths or hundredths of a millimeter, that is, the principle of mechanical capture and retention of microparticles does not work.

The technical result of the invention is the provision of reliable capture, retention and dosed movement of microparticles in the size of tenths and hundredths of a millimeter.

The technical result obtained by the tool for capturing, holding and dosing the movement of microparticles is achieved due to the fact that it consists of a housing equipped with a silicone handle and an elastic silicone pneumatic nozzle worn on its upper part, a cone-shaped transition and a working tip, and the raised tip of the working tip is connected with a cone-shaped transition through the knee-forming bend, and the raised part of the working tip and the knee-forming bend have the same inner diameters, Meth for free movement of the microparticles.

In FIG. 1 shows a general view of a tool for gripping, holding and dosing the movement of microparticles.

In FIG. 2 shows the working tip.

A tool for gripping, holding and dosing the movement of microparticles consists of: a working tip 1, a cone-shaped transition 2, a housing 3, a silicone pneumatic nozzle 4, a silicone handle 5.

The working tip 1 has a raised up part 6 and a knee-forming bend 7.

The inner diameter of the working tip 1 provides free passage of microparticles under the influence of air flow passing inside the tool.

Raised up part 6 prevents the loss of microparticles in the vertical position of the tool.

The knee-forming bend 7 prevents the microparticles from falling back from the tool. Cone-shaped transition 2 provides a transition from the diameter of the lumen of the working tip 1 to the diameter of the lumen of the housing 3 and serves to store microparticles.

The housing 3 is a hollow cylinder, the air volume of which together with the air volume of the silicone pneumatic nozzle 4 provides sufficient air flow.

Silicone pneumatic nozzle 4 is an elastic tube, changing the diameter of which by manual compression, ensure the creation of air flow. One end of the pneumatic nozzle 4 is dressed on the housing 3, and its second end is closed.

The silicone handle 5 is mounted on the housing 3 and provides convenient fixation of the tool for gripping, holding and dosing the movement of microparticles in the hand.

A new constructive solution is the capture and dosed movement of microparticles by air flow, and the retention of microparticles in the tool for gripping, holding and dosed movement of microparticles is ensured by the design feature of working tip 1. Working tip 1, conical transition 2 and housing 3 are made of glass.

The procedure for working with a tool for capturing, holding and dosing the movement of microparticles is as follows. Squeeze the silicone pneumatic nozzle 4 and, releasing air from the tool to capture, hold and metered movement of the microparticles, bring the working tip 1 to the microparticle. Then, releasing the silicone pneumatic nozzle 4, suck the microparticle with an air stream to the level of the conical transition 2 and bring the working tip 1 to the place of introduction of the microparticle into the eye of the experimental animal. By compressing the silicone pneumatic nozzle 4, introduce the microparticle into the injection site by air flow.

Numerous studies on experimental animals have shown manipulative comfort when working with a tool for gripping, holding and dosing the movement of microparticles, ensuring targeted capture of microparticles and their reliable retention and aiming movement.

The design of the tool for capturing, holding and dosing the movement of microparticles ensures the capture and dosed movement of the microparticles by the air flow, prevents the microparticles from falling out of the tool and allows creating a pneumatic rod of sufficient strength due to the elastic silicone pneumatic nozzle 4.

Literature

1. G.M. Semenov, SZO, Modern surgical instruments. - St. Petersburg: Peter, 2006 .-- 352 p. - (Series “Quick Guide”). Page 277-281.

2. E.M. Turgunov, A.A. Nurbekov. Surgical Instruments - Educational visual aid. Karaganda, 2008 .-- 24 p. Page 10.

Claims (1)

A tool for gripping, holding and dosing the movement of microparticles, consisting of a body equipped with a silicone handle and an elastic silicone pneumatic nozzle worn on its upper part, a cone-shaped transition and a working tip, the part of the working tip raised upwardly connected with the cone-shaped transition through the knee-forming bend, and raised upwardly part of the working tip and the knee-forming bend have the same inner diameters sufficient for the free movement of microparticles.

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