SU995764A1 - Retractor - Google Patents

Description

(54) Retractor

one

The invention relates to medicine, in particular to surgical instruments, namely to retractors for amputation.

The known retractor, containing two shariirno connected semicircles with a notch 1.

However, this retractor cannot be used for amputation of the lower limb at the level of the tibia, where there are two bones.

A retractor is also known; the contents are two articulated sectors with notches 2.

However, the sectors in this retractor are flat, and the notches are hemispherical and rectangular. Therefore, it is also impossible to simultaneously amputate two bones of the limbs simultaneously with this retractor.

The purpose of the invention is the possibility of simultaneous sawing of tibial and fibula bones.

This goal is achieved by the fact that in a retractor containing two sectors with hinged joints with notches, each sector is made in the form of a plate bent to form two parallel parts that are spaced apart from the other.

2.5-3 cm, and the notches have a semi-oval shape.

FIG. 1 depicts the proposed retractor, open position; in fig. 2 - the same, closed position; in fig. 3 - 5 same, cut.

The retractor contains two sectors 1 and 2 connected in a hinged manner. Each of them has two semi-oval grooves 3 and a handle 4. Sector 2 has protrusions 5 dl. fixing sector 2 to sector 1. Each sector 1 and 2 is made in the form of a plate, bent to form two parallel parts 6 and 7, 2.5–3 cm apart from one another.

The retractor works as follows.

Claims (2)

In the middle third of the leg, the anterior and posterior skin-fascial flaps are cut out. The flaps of tissue are wrapped up and the muscles cross transversely on the same level at the rate of half the distance from the base of the flap to its end. After crossing the muscles under the exposed more than 20 tibial and fibula bones, the retractor is brought in and, accordingly, they are laid in the semi-oval notches 3 (Fig. I) on either sector 1 or 2, after which both sectors 1, 2 draw together and the soft tissues pull up to a certain level of future bone sawdust of both bones. Subsequently, the retractor is completely closed by bringing together both sectors 1 and 2, fixed with projections 5, and the lower limb is placed on the operating table. After it is closed, it is independently fixed to the bone of the shin. Then, Gigli wire saws are held at the same time for the tibia and fibula at different levels. Next, it fixes the lower limb by the foot and at the same time the sawing of both bones of the tibia is performed. The sawing of both bones is processed, the retractor is removed and the stump of the lower leg is stitched. The tibial bone is sawed in the middle third of the tibia, and the fibular bone is 2.5–3 cm above the tibial sawdust, in order to facilitate the replacement of the limb. The proposed retractor reliably fixes both bones of the tibia, frees the assistant’s hands from holding the retractor, which can simultaneously cut the second tibial bone (forearm) with the surgeon, does not injure the soft tissues of the extremities, creates convenience for the work of the surgical teams, reduces the time of operations. Claims of the invention A retractor containing two articulated sectors with grooves, characterized in that, in order to enable simultaneous cutting of the tibial and fibular bones, each sector is made in the form of a plate bent to form two parallel parts that are spaced apart from one another by 2, 5-3 cm, and the notches have a semi-oval shape. Sources of information taken into account in the examination 1.TU-64-970-77. Price list № 28-02-22 of the Ministry of Medical Industry. M., 1976. 2. Catalog “Shvabe, Medicine, p. 532, IND 8788/1, 1901.