UA7829U - Device for osteosynthesis with the aid of metal plate - Google Patents

Abstract

The device for osteosynthesis with the aid of metal plate consists of the conductor for delivering the screws with the guide for passing the plate through the puncture of the soft tissues.

Description

Description of the invention

The proposed technical solution refers to medicine, namely to orthopedics and traumatology, and can be used for osteosynthesis of fractures of flat and tubular bones with the help of fixing plates.

A well-known prototype is a conductor for driving screws when connecting bone fragments with a metal plate with holes placed across the fracture line. It is used in the following way. Soft tissues over the area of bone damage are dissected. A plate is applied to the fracture site. A conductor is installed above the plate - a guide for the screw. A screw and a screwdriver are introduced into the conductor, with which the plate is screwed to the 70th bone. Operative access to the bone made through soft tissues is sutured |1, 21.

The main shortcomings of the prototype include the following. Performing osteosynthesis according to the described method requires dissection of soft tissues in order to expose the bone area at the place of the intended location of the plate, and, after its fixation, suturing of soft tissues. This requires additional time spent on the operation, dressings, tools, etc. Applying the wound to soft tissues leads to an increase in the volume of 12 operations and injuries. A large volume of injured soft tissues increases the pain syndrome in the postoperative period, increases the risk of developing postoperative complications, in particular painful shock, bleeding, inflammation in the wound. The conditions for the fusion of fractures in the conditions of a large wound of soft tissues deteriorate significantly.

The proposed useful model is based on the task of creating such a device for osteosynthesis with a metal plate, which would not require large dissections of soft tissues, and, therefore, would be devoid of the above-mentioned shortcomings of the prototype.

The task is solved by the fact that the device for osteosynthesis with a metal plate, consisting of a conductor for inserting screws fixing the plate, is additionally equipped with a guide for inserting the plate through a puncture in soft tissues (Fig. 1).

It consists of a body made of stainless medical steel 1 (Fig. 1), in which holes are made - conductors for directional driving of screws 2 (Fig. 1) and a socket-slit hole C (Fig. 1) for fixing a plate, which is superimposed on the fracture site 4 (Fig. 1). At the same time, the direction of the conductor holes strictly corresponds to the holes in the plate fixed at the fracture site.

The device is used in the following way. 1. A plate designed to be applied to the fracture site is fixed in the slot-like opening of the device. Ha 2. A puncture-dissection of soft tissues with a length equal to the width of the plate intended for application to the fracture site is performed. co

C. Through this incision, using the plate as a tool that bluntly pushes soft tissues, the plate is brought to the place of the intended application to the bone (Fig. 2, C).

From 4. Through the holes in the conductor of the device, a trocar is made, which pierces the soft tissues to the plate. 5. After removing the trocar stylet, a screw for fixing the plate on the bone and a screwdriver for screwing this screw are inserted through its sleeve. " 6. The screw is screwed in, that is, the plate is fixed to the bone in the fracture zone. 8 7. The screwdriver and then the trocar are removed. 50 8. In the same way, other screws are screwed into the bone (Fig. 4). c 9. After completion of fixation, the device is removed (Fig. 5). Holes from the trocar and dissection are not sewn up

Because of their small size.

Thus, the device for osteosynthesis with a metal plate, which is claimed, and which consists of a conductor for conducting plate-fixing elements, eliminates the shortcomings of the prototype, namely - it allows fixing the plate above the fracture site with screws brought exactly to the holes in the plate and, at the same time , 7 place the plate on the bone without a large soft tissue incision. Therefore, time consumption is thereby reduced

Ge | for surgery, dressings, instruments, etc. The minimum amount of surgery and injuries to soft tissues reduce the pain syndrome in the postoperative period, the risk of developing postoperative complications, in particular, painful shock, bleeding, suppuration in the wound. The conditions for the fusion of fractures in the conditions of a minimal wound of soft (Che) 20 tissues are significantly improved.

Approbation of the device was carried out on cadaveric material as well as in the conditions of clinics of the Donetsk Regional Traumatology Hospital, where its high efficiency, ease of use, and atraumaticity were confirmed.

Sources:

So» 1. M. Müller, M. Allhover, R. Schneider, H. Willinegger "Guide to internal osteosynthesis".

Zrgipdeg-Mepad. Berlin - Heidelberg - New York - London - Paris - Tokyo - Hong Kong - Barcelona -

Budapest-Moscow. 1996 2. L.N. Ankin, N.L. Ankin "Practice of soteosynthesis and probe prosthesis". Kyiv. 1994 60 b5 in r and r-, ee ki oi i

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Claims (1)

;" The formula of the invention is a device for osteosynthesis with a metal plate, which consists of a conductor for carrying screws fixing the plate, which is distinguished by the fact that it is equipped with a guide for carrying the plate through a puncture in soft tissues. "in/o Official Bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2005, M 7, 15.07.2005. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. Su; 60 b5