CN201453325U

CN201453325U - Boring angle guider for department of osteology

Info

Publication number: CN201453325U
Application number: CN2009201037169U
Authority: CN
Inventors: 张奇; 陈伟; 吴啸波; 张英泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-15
Filing date: 2009-07-15
Publication date: 2010-05-12
Anticipated expiration: 2019-07-15

Abstract

The utility model discloses a boring angle guider for the department of osteology, which belongs to the technical field of surgical instrument and is used for accurately determining the boring direction of a sleeve in an operation. The utility model adopts a technical scheme that: the boring angle guider consists of the sleeve, a handle and an angle measurement board, wherein the angle measurement board is a hard circular slice in uniform thickness and is carved with angle scales around the centre; the wall of the sleeve is contacted in parallel with a side plane of the angle measurement board; the front end of the sleeve is connected and fixed at the centre of the angle measurement board through a rotating shaft; and the handle is connected to the rear end of the sleeve. When the angle guider is adopted in the operations, the sleeve performs boring according to the directions indicated by the angle measurement board, thereby ensuring that the directions in which screws are placed into bones are accurate in the process of treating periprosthetic hip joint fractures comprising acetabular fractures and the like and the fractures at knees, ankles, elbows and the like, avoiding the screws entering joint cavities and damaging arthroidal cartilages and important neurovascular structures, improving the quality of the operations and relieving the pain of patients.

Description

A kind of orthopaedics bore angle guider

Technical field

Determine the aid of bore angle when this utility model relates to a kind of bone surgery, belong to the medical surgical instrument technical field.

Background technology

Blade plate and screw are the apparatuses commonly used that orthopaedics is used for the treatment of fracture, in treatment fracture process, need insert screw by the nail hole of blade plate, perhaps directly screw are inserted sclerite.Before inserting screw, can be by sleeve to inserting the position boring of screw.At present the sleeve that uses is independent tubular structure, when holing around in the joint, may make screw enter articular cavity because direction holds improper or damages important neurovascular structure.Find that through secular operation practice go in the process of screw in disposal such as hip joint, knee joints, if direction is incorrect, screw may enter articular cavity, the infringement cartilage, complication such as traumatic arthritis may take place in long term.Therefore necessary taking measures improved, with quality that improves operation and the complication of avoiding the patient.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of orthopaedics bore angle guider that can accurately determine the sleeve boring direction when operation.

The technical scheme that solves the problems of the technologies described above is:

A kind of orthopaedics bore angle guider, it is made up of sleeve, handle, Angle protractor, Angle protractor is the uniform hard circle sheet of thickness, be carved with angle line around the center of circle, the parallel contact of one side plane of sleeve wall and Angle protractor, telescopic front end is connected and fixed by rotating shaft at the centre point place of Angle protractor, and handle is connected telescopic rear end.

Above-mentioned orthopaedics bore angle guider, described Angle protractor are 1/4 circle, are carved with 90 ° of angle lines around the center of circle.

Above-mentioned orthopaedics bore angle guider, described Angle protractor is a semicircle, is carved with 180 ° of angle lines around the center of circle.

Above-mentioned orthopaedics bore angle guider, have on the heteropleural plane of described Angle protractor and sleeve wall contact plane one or more perpendicular to the plane and with its pillar that continues mutually, the bottom surface of pillar is plane or cone angle.

Above-mentioned orthopaedics bore angle guider has position line on the described telescopic barrel, and position line is positioned on barrel and the side that Angle protractor contacts, and the position line direction is along the axis of sleeve wall, and width is identical with the graduation mark of Angle protractor.

In operation, adopt this angle guideline, sleeve is holed according to the Angle protractor indicated direction, can guarantee to locate in the treatment of fractures process at hip joint surrounding fractures such as fracture of acetabulum and knee joint, ankle, shoulder, elbow etc., the direction that screw is inserted is accurate, avoided screw to enter articular cavity, damage articular cartilage and important neurovascular structure, improve the quality of operation, alleviated patient's misery.

Description of drawings

Fig. 1 is the structural representation of an embodiment of this utility model;

Fig. 2 is the structural representation of another embodiment of this utility model.

Labelling is as follows among the figure: sleeve 1, handle 2, Angle protractor 3, rotating shaft 4, pillar 5.

The specific embodiment

Referring to Fig. 1, Fig. 2, this utility model is made up of sleeve 1, handle 2, Angle protractor 3.

Angle protractor 3 can adopt general protractor, perhaps adopts the semicircle or 1/4 circular Angle protractor of customization, can use transparent material or opaque material.

Sleeve 1 is existing sleeve, the parallel contact of a side plane of the barrel of sleeve 1 and Angle protractor 3, and the front end of sleeve 1 is connected and fixed by rotating shaft 4 at the centre point place of Angle protractor 3, and handle 2 is connected with the rear end of sleeve 1.

On the barrel of sleeve 1 position line is arranged, position line is positioned on barrel and the side that Angle protractor 3 contacts, along the axis direction of sleeve 1 barrel.Operator can be by position line and the axial angle of the Angle protractor accurate abutment sleeve of 3 high scale lines.

Referring to Fig. 2, Angle protractor 3 with sleeve 1 barrel noncontact plane on can fix 1 or a plurality of perpendicular to planar pillar, the bottom surface of pillar 5 is plane or cone angle, their effect is to support Angle protractor, makes Angle protractor can place blade plate 3 times.

Before the use, measure, determine the best angle and the maximum magnitude of different parts sleeve boring, can hole according to this scope in the operation the safety range of different parts angle of pedicle screw.

Using method:

At first separate soft tissue, expose fracture and sclerotin on every side thereof, the reseting fracture piece;

Then angle guideline is seated on the skeleton such as acetabular bone, adjusts its position and make barrel end aim at the position that will hole, select suitable angle according to measurement result, this angle can directly read out from Angle protractor, boring.

If put blade plate, can select angle guideline for use with pillar, the space of storing is provided for blade plate.

Claims

1. orthopaedics bore angle guider, it is characterized in that: it is made up of sleeve [1], handle [2], Angle protractor [3], Angle protractor [3] is the uniform hard circle sheet of thickness, be carved with angle line around the center of circle, the parallel contact of one side plane of sleeve [1] barrel and Angle protractor [3], the front end of sleeve [1] is connected and fixed by rotating shaft [4] at the centre point place of Angle protractor [3], and handle [2] is connected the rear end with sleeve [1].

2. orthopaedics bore angle guider according to claim 1 is characterized in that: described Angle protractor [3] is 1/4 circle, is carved with 90 ° of angle lines around the center of circle.

3. orthopaedics bore angle guider according to claim 1 is characterized in that: described Angle protractor [3] is a semicircle, is carved with 180 ° of angle lines around the center of circle.

4. according to claim 1,2 or 3 described orthopaedics bore angle guiders, it is characterized in that: one or more are arranged perpendicular to planar pillar [5] on the heteropleural plane of described Angle protractor [3] and sleeve [1] barrel contact plane, the bottom surface of pillar is plane or cone angle.

5. orthopaedics bore angle guider according to claim 4, it is characterized in that: on the barrel of described sleeve [1] position line is arranged, position line is positioned on barrel and the side that Angle protractor [3] contacts, and the position line direction is along the axis of sleeve [1] barrel, and width is identical with the graduation mark of Angle protractor [3].