SU921551A1 - Traction wire stretcher - Google Patents

Description

(S) SPITNESSER

I

The invention relates to medical technology, namely to compression-distraction apparatus, for osteosynthesis.

Known spicate givatel containing frame., In which a screw with a nut is installed, having a through channel under the needle and popun LU.

The disadvantage of the known spitsen-: pulling gear is the necessity of successively performing two operations — stretching and fixing the spoke, which leads to a delay in the process of stretching the spokes and, consequently, the imposition of a compression-distraction apparatus.

The purpose of the invention is to accelerate the process of tensioning the spokes by combining the tension and fixation of the spokes.

The goal is achieved by the fact that the NTO in the distributor has a frame in which the PMMT is installed with a nut. having a through channel under the needle and a slider, the latter is connected with a screw and is designed as a fork, between the ends of which there is a spring-loaded wedge, with the needle located between the ends of the fork and the wedge.

Figure 1 shows a spicate givatel, front view, partial semen; figure 2 is the same, side view.

Speaker pack contains a frame

to 1, in which a slider 2 is installed, connected to a screw pair 3. Slider 2 has the shape of an asymmetrical plug, between which ends there is a wedge 4. End face

The IS of the wedge k is connected by the strut surface of the frame 1 by a spring 5 of double-sided action. The needle 6 is mounted on the annular support 7 of the compression-distraction apparatus, passes through the through channel 8 of the screw pair 3. The inclined surface 9 of the wedge is in contact with the inclined cheek 10 of the slider 2, and the corrugated surface 11 of the wedge i faces the Spitz's cheek 12 of the slider 2, Spring 5 double acting passes through an oval hole made in the end part of the slide and is connected to the end surface of the wedge and frame 1, the screw 13 of the screw pair 3 passes through the hole I of the end part of the frame 1 and is fixed in it with a handle 15, which is held at the end of the two parts of the frame by means of a coupling (not shown). In addition, the frame 1 of the givatel is provided with fixing attachments t6, 8za, which are equipped with an annular support 7 of the apparatus, which in turn is equipped with clips 17.. The list of sponsors is as follows. The spicate gauge is placed on the annular support 7 of the compression-distraction apparatus with its fittings NO 16, and the needle 6 to be pulled is passed between the corrugated surface 11 of the wedge t and the spoke cheek 12 of the ram 2. With a long needle, 6 its end passes into the squam channel 8 screw pair 3. Then the handle 15 is rotated, whereby the screw 13 moves towards the front part of the frame 1. At the same time, the slider 2, rigidly connected with the screw 13, moves in the same direction. In this case, fixation and tension of the spokes takes place. During the movement of the slider 2, its inclined cheek 10 interacts with the inclined surface 9 of the wedge C, as a result of which the latter, under the action of the spring 5, moves the side of the spoke 6. At the same time, the spring 5 also moves towards the spoke 6 in the oval hole of the end part of the slide 2, the corrugated surface The wedge II II, moving closer to the slotted cheek of the slider 2, fixes the needle 6. With the further rotation of the handle 15, the tension of the fixed needles takes place with a simultaneous increase in the clamping force. The tension of the needle is fixed by the clamp 17 of the compression-distraction apparatus. Then, the spokes are released from the spicant of the spreader by reverse rotation of the handle 15. At the same time, the handle 15 is held by the coupling at the end part of the frame 1, as a result of which the slide 2 in the frame guides 1 returns to its original position, Pruging 5 initially completely relaxes, then upon further movement of the slider 2, the spring 5 over-expands and, shifting in the oval hole of the end part of the slider, withdraws the wedge from the back 6, releasing it. Thus, the design of the spicate alloys provides simultaneous reliable fixation and tension of the spokes, speeds up the procedures for fixing and releasing the spokes, and in general. The process of tightening simplifies the operation of the surgeon, creates comfortable working conditions, prevents deformation of the spokes. The use of a givatel spicate improves the efficiency and quality of work with the compression-distraction apparatus. Claims of the invention A spicer containing a frame in which a screw with a nut is installed, having a through channel for a needle and a slider, characterized in that, in order to accelerate the process of tension of the spoke by combining the tension and fixing the needle, the slider is connected to the screw and made in the form of a fork, between the ends of which a spring-loaded wedge is located, with the needle being located between the end of the fork and the wedge. Sources of information taken into account in the examination I. Transosseous compression and constructional osteosynthea in traumatology and orthopedics. Collection of scientific papers. Kurgan, 1972, p. 99.

Phi /

FIG. 2

Claims (1)

Claim A tensioner containing a frame with a screw and nut installed, having a through channel for a spoke and a slider, characterized in that, in order to accelerate the process of pulling the spoke by combining the tension and fixing of the spoke, the slider is connected to the screw and made in the form of a fork, between the ends of which a spring-loaded wedge is located, and the spoke is located between the end of the fork and the wedge.