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Sleeve external fixation needle for bone transverse moving operation

A technology of external fixation and cannula, applied in trocars, external fixators, surgery, etc., can solve the problems of large volume of external fixator, hinder limb movement, complex structure, etc., to improve treatment effect, reduce surgical injury, The effect of simplifying surgical steps

Inactive Publication Date: 2020-12-25
王培林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of large volume, complex structure, large damage (need to drill 4-6 holes in the bone), difficult care, and hindrance to limb activities in the existing external fixator in transverse bone transfer surgery

Method used

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  • Sleeve external fixation needle for bone transverse moving operation
  • Sleeve external fixation needle for bone transverse moving operation
  • Sleeve external fixation needle for bone transverse moving operation

Examples

Experimental program
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Embodiment Construction

[0024] In Example 1, a cannula external fixation needle is used in the operation, see Figure 8 , Open a window in the middle of the long bone for osteotomy, put the bone chip in place, drill a round hole in the vertical bone chip to fix the threaded part (of the sleeve head) 2.6, use the center hole drill protector, pass through the circle on the bone chip Drill a small round hole in the contralateral cortex to fix the threaded part 1.6 (at the head end of the inner core); 2.6 is fixed in the round hole of the bone slice, the threaded part 1.6 (of the head end of the inner core) is fixed in the smaller round hole of the cortical bone on the opposite side, and then installed on the threaded part 2.1 (in the middle of the sleeve) (with the middle of the sleeve Screw the nut 2.2 and the transmission frame 3 to the appropriate position, so that the ring 3.2 (at the lower end of the transmission frame) is semi-fixed between two nuts 2.2 (matched with the thread in the middle of th...

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Abstract

The present invention relates to an orthopaedic external fixation needle and particularly to a sleeve external fixation needle for a bone transverse bone moving operation, belongs to orthopaedic external fixation devices, and solves problems that existing operation devices (needing uses of 4-6 external fixation needles and a pair of an external fixation frame) are large in size, large in trauma, low in patient compliance, difficult in later nursing and the like. The sleeve external fixation needle for bone transverse moving operation is characterized in that a main body part of the sleeve external fixation needle is characterized by comprising an inside inner core and an outside sleeve, the inner core inserts into the sleeve to form a sleeve structure, an outer wall of a head end of the sleeve and a head end of the inner core are provided with threads, the sleeve external fixation needle is used for fixing bones, a tail end of the main body part of the sleeve external fixation needle is provided with an adjusting device, the adjusting device is composed of a transmission frame, threads on the outer wall of the sleeve and corresponding nuts, one end of the transmission frame is semi-fixed between the two nuts on the outer wall of the sleeve, the other end of the transmission frame is semi-fixed at a tail end of the inner core, the inner core and the sleeve are driven to move relatively by rotating the nuts on the outer wall of the sleeve, so that a relative position between bone blocks is adjusted. The sleeve external fixation needle is used for fracture fixation, a transverse bone movement can be achieved through 1-2 sleeve external fixation needles, surgical operations are simplified, surgical wounds are reduced, a fear of a patient is relieved, compliance is improved,and postoperative care is simplified.

Description

technical field [0001] The invention belongs to the technical field of medical instruments and equipment, and in particular relates to an external cannula fixation needle used for bone lateral movement operation. Background technique [0002] The tibial lateral bone transfer technique (which can treat thromboangiitis obliterans and diabetic foot) is a surgical treatment based on the technical theory of "tension-stress law" created by the former Soviet scientist "Ga. A. Irizalov". When the biological tissue is slowly pulled, it will generate a certain tension, which can stimulate tissue regeneration and active growth. During the process of cortical bone osteotomy and gradual traction and extension, bone and limb blood vessels are significantly regenerated. Therefore, it is used in the treatment of thromboangiitis obliterans, diabetic foot and refractory wounds of limbs. For example: Transverse tibial bone transfer surgery is generally used to treat chronic lower limb ischemi...

Claims

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Application Information

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IPC IPC(8): A61B17/66A61B17/16A61B17/34
CPCA61B17/1604A61B17/66A61B17/3472A61B2017/3492
Inventor 王培林
Owner 王培林
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