Activity-inertia combined adjusting control outer fixer for distal radius fracture

An external fixator combined with dynamic and static technology, applied in medical science, surgery, etc., can solve problems such as joint stiffness and poor reduction, and achieve the effects of promoting bone reconstruction, convenient use, and avoiding re-injury

CN103445832AActive Publication Date: 2013-12-18JIANGSU GUANGJI MEDICAL TECH
9 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2013-12-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

An activity-inertia combined adjusting control outer fixer for a distal radius fracture is formed by an outer fixer frame body, steel needle fixing clamps connected onto the outer fixer frame body and steel needles clamped in the steel needle fixing clamps; the outer fixer frame body comprises a far end hole arc ring and a near end hole arc ring, which are arranged in parallel, have the same opening directions and are provided with multiple uniformly distributed holes respectively; a first thread connection rod is connected to the far end hole arc ring; the far end hole arc ring and the near end hole arc ring are connected by at least two second thread connection rods penetrating the holes; the far end hole arc ring, the first thread connection rod and the second thread connection rods are connected with the steel needles by the steel needle fixing clamps. The activity-inertia combined adjusting control outer fixer can be used for the reset of the distal radius fracture, and can perform joint-crossing fixing or local fracture fixing according to different treatment periods, thus more according with the anatomic and therapeutical demands of the distal radius fracture. The activity-inertia combined adjusting control outer fixer is suitable for treatment of various radius fractures, particularly, the opening distal radius fracture or a severe comminuted fracture.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an orthopedic surgical instrument, in particular to a novel external fixator for treating fractures of the distal end of the radius. Background technique

[0002] Since Roger Anderson first reported the use of external fixators to treat distal radius fractures in 1944, various external fixators have emerged, such as Roger-Anderson external fixators, AO static external fixators, and Hoffman-II external fixators. Orthofix external fixator, Clyburn external fixator, Shen Yixin distal radius dynamic external fixator, etc. are all applied. Among them, dynamic fixation is to allow the wrist joint to gradually increase the range of motion by loosening the rotating device or removing some components during the fracture healing process, so as to achieve the purpose of early functional exercise. In order to meet the treatment requirements of various complex injuries, in recent years, unilateral dynamic external fixators with locking jo...

Examples

Embodiment Construction

[0025] Examples see figure 1 As shown, the dynamic and static control external fixator for distal radius fractures is composed of an external fixator frame, a steel needle clip connected to the external fixator frame, and a steel needle clamped in the steel needle clip. The frame body of the external fixator includes a distal hole arc-shaped ring 1 and a proximal hole arc-shaped ring 2 placed in parallel, both of which have the same opening direction and are provided with a plurality of evenly distributed holes. Angle scales are engraved on the outer edge of the front side and the outer edge of the back side of the ring, which can improve the applicability of the external fixator, especially for the accuracy of the operation of the external fixator, the speed of operation and installation, the level of operation and installation, and teaching. It has very great practical significance. It can make the installation of the connecting rod and the insertion and rotation of the stee...