RU2238685C2 - Device for selecting and transecting veins - Google Patents

Abstract

FIELD: medical engineering.

SUBSTANCE: device has handle, rack, and sharp cutting instrument having sharp-edged rib directed toward the handle. The handle has two branches having working lips. One of branches has cutting depth restrictor like adjustable microscrew or protrusion sliding along branch length. The working protrusion of one of the branches is connected to pressure plate that has movable insert. Removable cutting member having sides and angles is attached to the other branch working lip. The sides and angles are selected depending on location, state and size of vein.

EFFECT: reduced risk of traumatic complications; wide range of functional applications.

3 cl, 4 dwg

Description

The invention relates to medical equipment, in particular to devices for extraction and intersection of veins.

A device for surgical treatment of varicose veins [1], taken as a prototype, containing a handle and connected to the handle of a pointed cutting element with a rib oriented to the handle with a cutting edge, a cremallera. However, the known device has the following disadvantages:

- the invasiveness of the operation (the possibility of cutting through tissues with improper adhesion of the rack);

- low functionality.

An object of the invention is to increase the functionality of the device and reduce the morbidity of the operation. The task is achieved due to the fact that the device is additionally equipped with a depth-of-cut limiter in the form of an adjusting microscrew or protrusion and a swivel of the pressure plate with the sponge, the cutting element being removable with different angles and sharpening sides, and the pressure plate is made curved to form a convex section facing the cutting edge.

The installation of a depth-of-cut limiter in the form of an adjusting microscrew or protrusion and a swivel connection of the pressure plate with the sponge guarantee the fixation of the distance and relative position of the pressure plate and the cutting element depending on the thickness of the skin and the location of the vein, which ensures its intersection without damaging the skin and reducing the invasiveness of the operation .

The implementation of the cutting element removable with different angles and sides of the sharpening makes it possible to quickly establish the necessary cutting configuration according to the condition, size and location of the veins, which eliminates tissue injury and the likelihood of damage to the skin, thereby increasing the functionality and usability of the device.

By performing a clamping plate curved with the formation of a convex section facing the cutting edge, a guaranteed grip and compression of the vein to the cutting edge, complete simultaneous intersection of the vein without damaging the skin, which reduces the invasiveness of the operation, is achieved.

The invention is illustrated by the following graphic materials:

figure 1 - General view of the device;

figure 2 - embodiment of the device;

figure 3 - embodiment of the device;

figure 4 - embodiments of the cutting element.

A device for separating and crossing a vein (Fig. 1) consists of working jaws 1, 2, made as a whole with branches 3 and 4, acting as handles, pivotally connected to each other and having ring ends 5. In the handling part of the device near the rings 5, there is a rack 6, with which the jaws 3 and 4 are fixed in position. In jaw 3, closer to the hinge, a microscrew 7 or ledge 8 is installed (Fig. 2), abutting in jaw 4. Moreover, in one embodiment, the ledge can be made movable. The microscrew 7 is equipped with a lock nut 9. The working jaw 1 has a lock 10 for a removable cutting element (blade) 11. The working part of the second jaw 2 acts as a pressure plate 12 and is equipped with a movable gasket 13. In the embodiment of the device (figure 2), the pressure plate 12 is connected with the working part of the jaw 2 by means of the hinge 14. Also, a removable cutting element (blade) 11 can be used in conjunction with the handle 15 from the scalpel with removable blades (figure 3). In an embodiment of the device, the pressure plate may be curved to form a convex portion 16 facing the cutting edge (FIG. 2).

The cutting element (blade) 11 (Fig. 4) has a tip 20 and cutting edges 17. Depending on the location, condition and size of the vein, the cutting element is made with various options for the angles and location of the cutting edge 17.

I-III - embodiments of the angles of orientation of the cutting edge to the centerline of the cutting element.

IV-IX - options for the location of the cutting edge (the arrow indicates the cutting edge).

The device is operated as follows (Fig. 1). Previously, depending on the location, condition and size of the vein, the necessary cutting element (blade) 11 is selected, installed on the device and depending on the skin thickness with a microscrew 7 and a lock nut, the required distance between the cutting edge 17 and the pressure plate 12 is set. The device is brought to the site skin 18, under which there is a vein 19 to be crossed. By longitudinal movement (+ V) of the tip 20, the skin 18 is pierced. A cutting element (blade) 11 of the device is introduced into the hole formed by combined longitudinal (+ V) and angular (+ W) movements and is brought under the vein 19 in the transverse direction with a movement (+ V), then rotated 90 °. Then, with the help of rings 5, the jaws 3, 4 are reduced to closing the cremallera 6. By reverse longitudinal (-V) and angular (-W) movements, the device is moved backward, crossing the vein 19. After crossing the vein 19, the cremalera 6 is released and the device is removed from the operating cavity.

Sourse of information

1. A.c. No. 950365, A 61 B 17/22.

Claims (3)

1. A device for separating and crossing veins, containing a handle connected to a handle with a pointed cutting element with a rib oriented to the handle with a cutting edge and a cremallera, characterized in that the handle is made in the form of two branches with working jaws, a depth limiter is located on one of the branches cutting in the form of an adjustable microscrew or a protrusion displaced along the length of the jaw, the working jaw of one of the jaws is connected to a pressure plate equipped with a movable gasket, and a removable mode is attached to the working jaw of the other jaw with a lock a rake is an element with angles and sides of sharpening, which are selected depending on the location, condition and size of the vein. 2. The device according to claim 1, characterized in that the working jaw of one of the branches is connected to the pressure plate by a hinge. 3. The device according to claim 1, characterized in that the pressure plate is curved with the formation of a convex section facing the cutting edge.

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