UA60540A - Sushkodevice for treating obstetric injuries of pelvic joints - Google Patents

Abstract

The device for treating the obstetric injuries of the pelvic joints consists of the external frame and the wires inserted into the bones. The external frame consists of the linear beams.

Description

Description of the invention

The invention relates to medicine, namely obstetrics and traumatology, can be used for the treatment of 2 obstetric injuries and diseases of joints and bones of the pelvis.

A well-known apparatus for transosseous osteosynthesis, in which round rods with a high thread are used instead of external fixators, and instead of an external structure - a design scheme with unipolar fixation of the rod is used (apparatus in which the method of attaching the structure to the rod is located in one place) patent of Ukraine 6574, 29309, 31590 A. 70 The known apparatus lacks the fact that the forces created by the apparatus and necessary for repositioning are located outside the plane of damage to the pelvis, which, in combination with the low strength of the bone in the metaphyseal sections, leads to the fact that the rod in this place is easily rotated and the more it worsens the adhesion to the bone.

The closest to the declared technical solution is the apparatus for transosseous osteosynthesis, which has a support in the form of a beam and a slider installed on it, connected by a threaded pin to a needle holder with smooth 72 needles. At the same time, each needle holder has one pair of mutually perpendicularly located regulating rods connected by a hinge, differing in that each needle holder has at least two pairs of mutually perpendicularly located threaded regulating rods connected by a hinge (patent of Russia Mo2085143. M.

Cl. АЕ1В17/66, 06/27/1997).

The disadvantage of this technical solution is the lack of possibility to eliminate the displacement of the pelvic bones in the case of ruptures of the pubic and sacroiliac joints in obstetric injuries of the pelvic joints.

The disadvantage of this technical solution is the impossibility of creating a uniform adjustable compression in the plane of the pubic and sacroiliac joints when they are torn.

The invention is based on the task of creating an external fixation device, which would provide the possibility of closed repositioning in case of obstetric injuries of the pelvic joints, namely, in the case of ruptures of the pubic and sacroiliac joints, and would provide the possibility of uniform application of fixing forces in the link of the "front and the posterior semiring of the pelvis. The proposed device should be simple in design and be able to adapt to individual variants of the external dimensions of the pelvis.

The task is solved by the fact that the device is made of rectilinear beams, each of which has through holes located in three mutually perpendicular planes. The holes made on the end sides of the beams are threaded, and the surfaces of the end beams are concave. The longitudinal side surfaces of the opposite sides are turned outwards with radially concave surfaces. In addition, the apparatus is made of two parallel vertical beams, connected to each other by two beams with movably mounted sliders, which have one or more holes, and has threaded pins with elements for fixing thin spokes. Ha")

The spokes have the form of a pointed rod with a lock and a movable sleeve mounted on the rod. One of the 3o ends is enlarged and rounded, and the other is flat. The latter is designed to interact with the retainer, which is made as one piece with the rod. It appears as at least one open and bent loop, and the flat end of the bushing has the ability to interact with one branch of the loop.

Fig. 1 shows the general view of the Sushko-Amro device in assembled form in relation to obstetric "injuries of the joints of the pelvic bones; in Fig.2. the depicted node of connecting the beams "end to side" with the help of a threaded Z 70 bolt and radial bending of the contacting surfaces. c The device has a closed external support, presented in the form of a square created from four

From" rectilinear beams (1,2,3,4), interconnected by bolts (5). Two parallel horizontal, front (1) and rear (2) beams, and two vertical beams (3,4).

Beams are made in the form of bars, which have two straight surfaces in the transverse section, and two parallel longitudinal surfaces have a radially curved outwardly convex surface. Beams have through threaded and unthreaded openings located in three mutually perpendicular planes. The end surfaces of the beams have av! radial concave bend and threaded holes. When tightening the bolt (5), which will connect the beams end to side"; due to the radial curvature of the contacting surfaces, the possibility of their scrolling relative to each other is excluded. "iz" 20 Vertical supports (3,4) can also have a radial bend along body contours.

At least two sliders (8) are movably attached to the horizontally located beams (1,2) with the help of threaded pins (b) and nuts c (7). On the side surface of the sliders (8) there is one or more through holes (9), through which brackets (10) with distraction threaded rods (11) and nuts (12), 2 mm diameter spokes-inserts, on which arc-shaped bends (15) are attached ) removable stops (16) are attached. The removable stops 25 are tubular segments, one end of which is club-shaped, and the other end is enlarged. the surface touches one knee of the bend of the spoke (14). Fixation of the removable stop (16) relative to the spoke (14) is carried out due to the fact that the difference between the diameter of the spoke is minimal, which allows their mutual movement, for example, O0.y1mm. on an even link. The presence of a bent bend (15) of the spoke (14) with such a ratio of diameters in this pair enables it to fix the removable stop (16) on the spoke (14). 60 The opposite end of the spoke (14) is fastened with a clip-insert (13).

The device works as follows. Under general or local anesthesia, after treatment of the operative field, a needle (14) is passed supraacetabularly through each iliac bone at the level of the anterior lower spine in the direction of the posterior lower spine until its cutting end exits from the side of the dorsal surface of the pelvis. After that, a removable stop (16) is placed on the inserted needle (14) from the side of the dorsal surface of the pelvis, which is fixed to the side of the needle (14) by its arc-shaped bend (15), since one of the knees is in contact with the end surface of the removable stop

(16). Wired spokes (14) with removable stops (16), inserts (13) are fixed to distraction threaded rods (11) on sliders (8). In order to avoid the separation of the pubic bones and the creation of compression at the border of the sacro-iliac joints, when screwing the nuts (7) on the threaded studs (6), the sliders (8) are moved towards each other.

At the same time, the pelvic bones in the link of the pubic joint converge.

Due to the fact that not only the ends of the spokes (14) are attached to the external structure of the device on the front surface of the body, but also the ends of the spokes on the side of the back surface, when the sliders (8) approach the beam (2) located on the side of the dorsal surface of the pelvis, there is an even compression of the sacroiliac joints on both sides. 70 In necessary cases, the external structure of the apparatus can consist not only of one square support, but also of several, and the number of spokes used can be increased.

If necessary, the device provides not only a dosed convergence of the innominate bones, but also their dilution in order to increase the size of the narrow pelvic cavity in obstetric practice.

Claims (5)

19 Formula of the invention 1. Apparatus for the treatment of obstetric injuries of the pelvic joints, which consists of an external structure made of needles for transosseous conduction, which is characterized by the fact that the external support of the apparatus is made of separate straight beams connected to each other in the form of a closed frame, for example in the form of square 2. The apparatus according to claim 1, which differs in that at least one of the beams has movably fixed sliders with threaded pins with the possibility of their metered movement. C. The apparatus according to claim 1, which is characterized by the fact that the spokes have a fixator of removable stops, made as a single unit with the rod, in the form of at least one open loop, and the flat end of the removable stop has the ability to interact with one branch of the loop. 4. The apparatus according to claim 1, which differs in that the apparatus has at least two parallel spokes, which "have removable stops." 5. The apparatus according to claim 1, which differs in that the side and end surfaces of the beams, which create a square support, have a radial bend: the side surface has a convex shape, and the end surface is concave. o " IF) "c) (Se) - and? (o) ("c) 1 sh" (42) 60 b5