RU33306U1 - Bone grafts delivery device - Google Patents

Description

DEVICE FOR THE INTRODUCTION OF BONE TRANSNLANTATES

The utility model relates to medicine, namely to traumatology and orthopedics, and can be used in the treatment of patients with destructive-dystrophic diseases of large joints.

In the complex treatment of patients with deforming arthrosis, with traumatic injuries, joint articular defects are widely used.

A known method of introducing bone grafts by their "clogging in the canals of bones (1).

The disadvantage of this method is the risk of trauma to bone tissue and the inability to use spongy grafts, which can be destroyed during installation.

A device for introducing bone grafts is known, which comprises a tubular body and a shaft with a handle mounted therein

The disadvantage of this device is the increased trauma of bone tissue, the inability to use spongy grafts and small tubular bones, which limits the technological capabilities of the device.

The purpose of creating a utility model is to reduce tissue trauma with the introduction of a bone graft.

This goal is achieved by the fact that the working end of the housing is cone-shaped and provided with a conical thread, and the end face is made in the form of a wavy cut; its edges, and the proximal end of the rod is provided with a flare exit of its distal end from the tubular cone.

2 0 S 3

 at 17/18.

Comparison of the proposed device with others known in the field of orthopedics showed its compliance with the criteria of a utility model.

The utility model is illustrated by graphic material, which shows the proposed device for the introduction of bone grafts.

The device for introducing bone grafts contains a tubular body 1, the working end 2 of which is conical in shape and provided with a taper thread 3. The end face of the working end 2 of the body 1 is made in the form of a wave-shaped cutting edge 4. A handle 5 is mounted on the proximal end of the body 1. a rod 6 with a handle 7. At the proximal end 8 of the rod 6, a scale 9 is made for the outlet of its distal end 10 from the housing 1. The distal end of the rod is made with a cutting edge 11. The rod 6 can be made in the form of a tube with, for example measures serrated edge, or in the form of a stylet with cutting functional end.

The proposed device is used as follows.

All elements of the device are sterilized.

The operation is performed in the operating room, under aseptic conditions. After processing the skin, under the general anesthesia, the knee joint is opened, during the audit, a defect site or a zone of deep dystrophic changes in the articular cartilage is found. The device is assembled in working condition. The device through the wound is placed on the affected area perpendicular to the articular surface. Rotate the rod 6 into the bone tissue to a predetermined depth. Then the body 1 is displaced all the way into the bone. By rotational-translational movements for the handle 5, screw the threaded part 2 of the distal end of the body 1 into the bone tissue. Cabinet 9 determines the depth of the created channel in the bone. Rod 6 is removed from

body 1. The finished bone graft of a given length, placed in the body 1 and push it into the bone channel. The body 1 is removed from the bone and from the soft tissues. The wound is sutured.

The presence of tapered threads on the working end of the body allows you to securely fix it in the bone, to eliminate the displacement and injury of tissues. The proposed device can be used to replace defects in articular cartilage and skeleton bones.

Using the device can reduce the morbidity and complexity of the operation. The device is easy to perform, can be used in a clinical setting. Sources of information:

.Author Certificate of the USSR 1400774855, cl. A 61 B 17/16, 1988 2. The author's certificate of the USSR JVo500798, cl. A 61 B 17/18, 1974

The authors:

Patentee:

G.P. Kotelnikov S.N. Izmalkov

Yu. V. Lartsev

A.M.Smirnitsky B.G. Carriers

2003 year

Claims (2)

1. A device for introducing bone grafts, comprising a tubular body and a shaft mounted therein with a handle at the proximal end and with a cutting part at the distal end, characterized in that, in order to reduce tissue trauma during the introduction of the bone graft, the working end of the body is cone-shaped and equipped with a taper thread, and the end face is made in the form of a wave-shaped cutting edge. 2. The device according to claim 1, characterized in that the proximal end of the rod is equipped with a scale for the output of its distal end from the tubular body.