RU1779344C - Method for treatment of bone treatment - Google Patents

Abstract

Usage: in surgery, orthopedics and traumatology. The hollow body 3 is introduced into a pre-prepared channel, after which a drill is turned on, the rotation of which through the shank 16 is transmitted to the hollow body 3. 5 silt vj XJ О СО-б

Description

Fig. /

The invention relates to a medical technician, in particular to surgical cutting tools and can be used in orthopedics and traumatology.

A device for treating cavities is known, comprising a spherical working part with cutting elements, a shaft with a handle, and a working part in the form of two elastic shells arranged in one another with holes.

However, the prior art cavity treatment device does not allow the formation of newly created cavities in bone tissue.

Known end mill, containing consistently pivotally interconnected rod, cutting elements, supporting syukp and rod, movably mounted inside the rod with the possibility of fixing it with a button

However, such an end milling cutter does not provide the target spherical necracemia in predefined viutricost areas with minimal trismatization of healthy bone tissue

Closest to the present invention is a tissue dissection apparatus comprising a first housing cooperating with a shaft with a handle, and in a first housing it moves a first screw installed in a coupling integrally with the second housing, the first housing has a second handle with a second screw on a shaft mounted on bearings and having a gear wheel interacting with the pinion shaft with holes for the cutter and its shank, the pinion shaft rotates in the third housing and in the cover secured by a screw in this housing, and This case is screwed into the first case, into the groove of which the cover enters, the first key enters the end of the gear shaft, the second key enters, the conductor bracket with the first tube is installed on the coupling with the third screw, the second tube with a clip is installed in the second case for the rod with the other end, tubes and clamps for stops, and the rod is made with a groove for the fourth screw,

However, such a device for treating bone tissue does not provide low-invasiveness of intraosseous necrosectomy when it is carried out in the depth of bone tissue.

The purpose of the invention is to reduce the trauma of intraosseous necrosctomy and to ensure that it is performed deep in the bone tissue.

This is achieved by the fact that in a known tissue dissection apparatus comprising a stand connected by a carriage to a hollow body, in which a cutting element is connected to rotate, connected by a first gear to a rod, a first handle and a bearing, first and second axes, a bar, are additionally introduced the liner, flanges, shank and additional handle, while the rod is gear and installed with the possibility of axial movement in the inner housing rails with the possibility of interaction with the first gear mounted on the first axis oriented transversely to the housing, on which a cutting element is mounted, located opposite a side slot made about the housing, moreover, the bar is fixed with a screw on the rod end oriented to the side from the cutting element and mounted for movement in additional lateral cuts of the housing , the liner is movable and connected to the bar by the first additional screws, the bearing is fixed to the liner by an inner ring and connected to the carriage by an outer ring, the first and second handle sizes puppies on the second axis, equipped with a second gear and flanges connected to the carriage by second additional screws, the rack is made support, and in the inoperative end of the housing on the thread is attached a shank with a nut,

In FIG. 1 shows the cutter; in FIG. 2 - the same, top view; in FIG. 3 is a section AA in FIG. 1; in FIG. 4 is a section BB in FIG. 1, in FIG. 5 - section bb in figure 1

The device for processing bone tissue contains a cutting element 1 mounted on an axis 2 in a hollow body 3, on the inner guide of which a rod 4 is placed with its groove with teeth applied on its opposite side, interacting with the teeth of the gears of the cutting element 1. In a horizontal groove on on the upper end side of the rod with the help of screw 5, a bar 6. is installed, which is movably passing in the slots of the hollow body 3 and is connected by screws 7 to the insert 8, which is pressed against the hollow body 3, on which the bearing is pressed IK 9, the outer ring of which is pressed into the bracket of the carriage 10, moving along the support rack 11, with the teeth of which interacts with the gear of the second axis 12, passing through the flanges 13, mounted on the carriage 10 with screws 14 and having at the ends of the handle 15, and a shank 16 with a nut 17 is screwed into the upper part of the hollow body 3.

The Assembly of the device for processing bone tissue is as follows

The cutting element 1 is mounted inside the hollow body 3 on the axis 2. The rod 4 is placed on top of the hollow body 3 and is inserted with its groove in the lower part onto the inner guide of the hollow body 3 on one side and engaged with the gear of the cutting element 1 on the other side. A support post 11 and a second axis 12 are mounted in the carriage 10, and their gear engages the teeth of the support post 11. Then, the flanges 13 are worn on the second axis 12 on both sides and fastened to the carriage 10 with screws 14. The second axis 12c the handles are mounted on both sides 15. The bearing 9 is pressed onto the insert 8, and then into the bracket of the carriage 10, the hollow body 3 is installed inside the insert 8, the strip b is installed in the slot of the hollow body 3 and the groove of the rod 4 and fastened with screws 5 and 7 to the rod 4 and insert 8. Top screw into the hollow body shank 16 is fastened and secured with nut 17.

The preparation of the bone processing apparatus is as follows.

Turning the handle counterclockwise to the handle 13, the carriage 10 is lowered to the lower position. In this case, the cutting element 1 completely enters the hollow body 3. During operations, the support column 11 and the external drill must be fixed to relatively stationary external supporting elements.

Necrectomy is performed as follows.

The hollow body 3 is inserted into a pre-prepared channel of a slightly larger diameter than the diameter of the hollow body 3. to the site of necrectomy. A drill is turned on, the rotation of which through the shank 16 is transmitted to the hollow body 3. By slowly rotating the handle 13, in the direction of the arrow, the carriage 10 is moved upward along the support column 11 by means of the second axis 12, the gear transmission of the gear of the second axis 12 and the support column 11. Carriage 10 Moving upward, with its bracket, through the bearing 9, the insert 8. sliding on the hollow body 3, the bar b, moving into the slot x of the hollow body 3, screw 5 raises the stem 4 inwardly, which with its teeth rotates the cutting element 1 around the axis 2. Cutting element 1 output ith, from the slots of the hollow body 3 and its cutting edges on the long sides, it removes the bone tissue, which through the gap between the hollow body 3 and the wall

channel through the voids of the hollow body 3 is knocked out of the cutting zone. The cutting process will be completed after lifting the carriage 10 p to its highest position. In this case, the cutting element 1 will rotate 180 ° about the axis 2. After that, the device for processing bone tissue is removed from the channel.

The invention provides guaranteed targeted spherical and private samples of necrotic bone tissue in the affected areas of the bone with minimal trauma to healthy tissues. Such necrectomy allows further

to produce bone grafting with a spongy tissue, which ensures a quick resumption of bone vitality and a quick recovery of a patient's vitality.

Claims (1)

The claims A device for processing bone tissue, comprising a stand connected by a carriage to a hollow body, with which a cutting element is mounted for rotation, connected by a first gear to a rod, a first handle and a bearing, characterized in that, in order to reduce the trauma of intraosseous necrectomy and to ensure that it is carried deep in the bone tissue, the first and second axes are inserted into it. the bar, liner, flanges, shank and additional handle, while the rod is gear and installed with the possibility of axial movement in the inner housing rails with the possibility of interaction with the first gear located on the first axis oriented across the housing on which the cutting element is installed, opposite made in the body of the side slot, and the bar is fixed with a BAND on the end of the rod, oriented away from the cutting element, and installed with the possibility moving into an additional side slot of the housing, the insert is movable and connected to the bar by the first additional screws, the bearing is fixed to the insert by an inner ring and connected to the carriage by an outer ring, the first and second handles are placed on second axis equipped with a second gear and flanges connected to the carriage with one hundred additional screws, stand is made supporting, and in the non-working end of the housing, a shank with a nut is fixed to the thread. FIG. I 4-A fig.Z J FIG. 4 fl FIG. 5