RU23374U1 - SPECIAL WIRE - Google Patents

Abstract

A spoke cable containing a coupling, membranes with a central hole, a clamp for attaching a spoke, the second end of which serves to connect to the drive shaft, characterized in that it is made telescopic from tubes inserted into each other, each of which contains one of these membranes with a central hole while the proximal section is placed in the coupling, which is used for fastening to the electric drive, and the distal section is equipped with a stop for contact with the treated surface.

Description

The utility model relates to medicine, namely to surgical instruments, and can be used in orthopedics, traumatology and surgery, mainly for perforated knitting needles.

Known surgical tool for processing bones 1, comprising a housing in which a pneumatic engine (pneumatic drive) is placed, the piston of which is installed in the chamber between its two openings, providing the camera with a compressed air source, with the possibility of reciprocating movement in the chamber cavity and interacting with the anvil affecting the working tool, the stabilizer of the spokes, made in the form of several spring-loaded plates with central holes for guiding the spokes and with at least three radially placed additional holes through which guide rods are inserted with the possibility of longitudinal movement of plates on them.

A well-known tool has the disadvantage that a long and thin spoke, when subjected to end-face impact, starts to bend and vibrate with a certain shock frequency, which can cause injury to the tissue surrounding the surgical field, and also the air leaving the pneumatic drive does not contribute to the sterility of the operation . In addition, the device 1 is not able to hold the needle to its entire length, since the rigid part of the stabilizing system occupies more than a third of the length of the spoke and such a length (about 150 mm) remains outside the stabilizer.

The task to which the creation of a utility model is directed is to expand the technological capabilities of the tool for processing bone tissue, reduce the possibility of injury to tissues, with

fitting to the surgical field, as well as the maximum use of the useful length of the spokes.

The problem is solved in that the spoke cable containing the coupling, membranes with a central hole, a clamp for attaching the spokes, the second end of which is used to connect to the drive shaft, is made telescopic from tubes inserted into each other, each of which contains one of these membranes with a central hole, while 1 focal section is placed in the coupling, which serves for {fepment to the electric drive, and the distal - is equipped with a stop for contact with the treated surface.

In FIG. 1 shows a telescopic spoke with a partial section.

The conduit contains a sleeve 1 with screw 2 for mounting on a drive head (not shown). Starting from the first proximal section, the tubes 3 with the membranes 4 fixed in their rear walls and the central holes for conducting the spokes 5 are placed in the sleeve 1 in turn, the fixed proximal membrane 7 also has a central hole for the spokes 5 and is attached to the sleeve 1 with a screw 2. The fixed proximal membrane 7 keeps the sections from falling out of the sleeve 1.

A stop 9 is mounted on the distal tube 8 of the distal section with an opening for conducting the spoke 5. A collet 6 (or another clamp) of the spoke 5 is connected to the drive shaft.

The pipe runs as follows.

A pin 5 is fixed in the collet clamp 6. The tube sections 3 are installed in the sleeve 1 until the stop in the stationary 1 focal membrane 7 and together with the sleeve 1 are put on the working end of the spoke 5, pushing the sleeve 1 to the drive for mounting on it. Then, over the stop 9, sections of the traction block 3 are pulled over the entire length, which is approximately 310 mm. This length is the working depth to which the spoke can be drawn into bone tissue. Nri

entering the knitting needles into the bone surface of the section gradually folding one into the other.

When the drive is turned on, the spoke 5 rotates, which stabilizes along the axis in the holes of the membranes 4. When the working end of the spoke 5 is pressed, when it is inserted into the work surface, it does not oscillate like a long and thin rod loaded along the axis.

The splitting duct provides the possibility of reducing trauma to tissues adjacent to the surgical field, as well as maximizing the use of the useful length of the inserted needle.

1. A. p. USSR No. SOURCES OF INFORMATION 1466724, cl. A 61 B 17/16, publ. 09/23/89, bull. No. 11.

Claims (1)

A spoke cable containing a coupling, membranes with a central hole, a clamp for attaching a spoke, the second end of which serves to connect to the drive shaft, characterized in that it is made telescopic from tubes inserted into each other, each of which contains one of these membranes with a central hole while the proximal section is placed in the coupling, which is used for fastening to the electric drive, and the distal section is equipped with a stop for contact with the treated surface.