CN203290996U - Bar bending device - Google Patents

Abstract

The utility model relates to the technical field of medical apparatuses and instruments, in particular to a bar bending device. The bar bending device comprises a left pincers handle and a right pincers handle, a left elastic sheet and a right elastic sheet are fixed on the inner side of the left pincers handle and the inner side of the right pincers handle respectively through fixing bolts, the tail end of the left elastic sheet and the tail end of the right elastic sheet are overlapped, the left pincers handle and the right pincers handle are connected through first fixing nuts and an arc bending base assembly, rotating rollers are fixed at the head end of the left pincers handle and the head end of the right pincers handle through second fixing nuts, and the inside of the arc bending base assembly is arc. The bar bending device is suitable for making a connection bar with the diameter phi being 3.5 be bent to form cervical vertebra physiological curvature in a cervical vertebra posterior approach operation, and is convenient to operate and simple in structure.

Description

The curved rod device

Technical field

This utility model relates to technical field of medical instruments, especially a kind of curved rod device.

Background technology

Existing curved rod device is in cervical posterior approach, and the doctor can not carry out bending according to the good mould rod of bending, and bending is prone to deviation.

The utility model content

In order to overcome the deficiency of existing technology, this utility model provides a kind of curved rod device.

The technical scheme that its technical problem that solves this utility model adopts is: a kind of curved rod device, comprise left clamp handle and right clamp handle, left clamp handle and right clamp handle inboard are fixed with respectively left shell fragment and right shell fragment by hold-down screw, the end of left shell fragment, right shell fragment is overlapping, described left clamp handle, right clamp handle connect by hold-down nut one, bending arc-shaped seat assembly, described left clamp handle, right clamp handle head end are fixed with rotation roller by hold-down nut two, and described bending arc-shaped seat assembly inside is arc.

According to another embodiment of the present utility model, comprise that further described hold-down screw screw thread place scribbles screw thread glue.

The beneficial effects of the utility model are, are applicable to φ 3.5 pitman bendings in cervical posterior approach and become cervical curvature, and are easy to operate, simple in structure.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, this utility model is further illustrated.

Fig. 1 is front view schematic diagram of the present utility model;

Fig. 2 is rearview schematic diagram of the present utility model;

In figure 1, left clamp handle, 2, hold-down nut one, 3, hold-down nut two, 4, left shell fragment, 5, right shell fragment, 6, right clamp handle, 7, bending arc-shaped seat assembly, 8, rotation roller, 9, hold-down screw.

The specific embodiment

As shown in Figure 1 and Figure 2, a kind of curved rod device, comprise left clamp handle 1 and right clamp handle 6, and left clamp handle 1 and right clamp handle 6 inboards are fixed with respectively left shell fragment 4 and right shell fragment 5 by hold-down screw 9, the end of left shell fragment 4, right shell fragment 5 is overlapping, and left and right shell fragment spring energy springs back to original position by clamp handle.Described left clamp handle 1, right clamp handle 6 connect by hold-down nut 1, bending arc-shaped seat assembly 7, and described left clamp handle 1, right clamp handle 6 head ends are fixed with rotation roller 8 by hold-down nut 23, and described bending arc-shaped seat assembly 7 inside are arc.Described hold-down screw 9 screw thread places scribble screw thread glue, it are difficult for loosening.The hold-down nut 23 and the rotation roller 8 that assemble can rotate freely, and rotation roller 8 can be adjusted bending arc-shaped seat assembly 7 to required radian.

During work, after φ 3.5 pitmans are inserted, carry out bending, pitman can be bent into to the radian of die for fisrt forming rod pattern.This utility model is applicable to φ 3.5 pitman bendings in cervical posterior approach and becomes cervical curvature, and is easy to operate, simple in structure.

Claims (2)

1. curved rod device, the left clamp handle (1) that comprises and right clamp handle (6), left clamp handle (1) and right clamp handle (6) are inboard is fixed with respectively left shell fragment (4) and right shell fragment (5) by hold-down screw (9), left shell fragment (4), the end of right shell fragment (5) is overlapping, it is characterized in that, described left clamp handle (1), right clamp handle (6) is by hold-down nut one (2), bending arc-shaped seat assembly (7) connects, described left clamp handle (1), right clamp handle (6) head end is fixed with rotation roller (8) by hold-down nut two (3), described bending arc-shaped seat assembly (7) inside is arc.

2. curved rod device according to claim 1, is characterized in that, described hold-down screw (9) screw thread place scribbles screw thread glue.

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