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Internal fixation screw positioner

A technology of fixing screws and locators, applied in the direction of fixers, etc., can solve the problems of long operation time, excessive blood loss, large incision and trauma, etc., and achieve the effect of reduced operation time, less trauma and less bleeding

Inactive Publication Date: 2009-01-14
南京医科大学附属南京第一医院 +2
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to: in view of the current open positioning, internal fixation plate screw removal surgery surgical incision and trauma is too large, long operation time, blood loss and other problems, invented a kind of internal fixation screw locator, through its use to achieve The purpose of skin closure and positioning, minimally invasive removal of internal fixation plate screws

Method used

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Embodiment Construction

[0025] The following structural drawings and embodiments further illustrate the present invention.

[0026] An internal fixation plate screw positioner, comprising a puncture needle 1, a vertical rod 2, a sleeve rod 3, a positioning rod 4, a first puncture guide hole 5, a second puncture guide hole 6, a third puncture guide hole 7, a fourth puncture guide hole Puncture guide hole 8, sliding box 9, base 10, sliding opening 11, nail cap groove 12, internal fixing steel plate 13, positioning screw 14, internal fixing screw 15, cylindrical protrusion 16, spring leaf 17, the left side of the base 10 and the vertical The rod 2 is vertically integrated, the sleeve rod 3 is installed on the vertical rod 2, the sliding box 9 is connected with the vertical sleeve rod 3 and the horizontal positioning rod 4 sets of rods, the base 10 is similar to a single-hole steel plate, 1.5-3mm thick, and the surface A nail cap groove 12 is provided and is open to the right side, and the vertical bar 2...

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Abstract

The invention aims at the problem of large trauma of plate and screw removal surgeries to study a minimally invasive plate and screw removal method. An internal fixing screw positioning device is invented according to the method, and comprises a base, a vertical rod, a sleeve rod, a slide box, a positioning rod and a puncture nail. The device turns the cutting for positioning into percutaneous closed positioning for minimally invasive removal of the internal fixing plates and screws. The internal fixing screw positioning device is used in an operation in the way: firstly, an incision with 1.5 to 2 cm length is cut at one end of the original incision, then the top end screws are found and the base is inserted to be screwed tightly and be fixed, the distance between the target screw and the base screw is measured through an X-ray film or a plate model; the positioning rod is adjusted to determine the body surface projection of the screw, the puncture screw reaches the screw cap along a puncture guiding hole, a hollow sleeve tube is spread and the screw is removed by a screwdriver, and finally the hollow sleeve tube is moved to remove the adjacent screw. The base screw is taken out after other screws are removed, and the plate is extracted from the incision.

Description

technical field [0001] The invention relates to a percutaneous intracorporeal plate screw locator, which is a necessary positioning instrument for minimally invasive internal fixation plate screw extraction. Background technique [0002] Most patients with fractures have to suffer from trauma and open reduction, plate and screw internal fixation. After the fracture heals, they have to suffer as much pain and similar economic burden as the first operation to remove the internal fixation plate and screw. To determine the position of the internal fixation screw, the surgeon needs to make a complete incision and fully expose it. Therefore, the surgical trauma is no less than that of the first operation. We often hear such preoperative conversations, "Except that no need to buy steel plates, everything else is the same as the last operation." . [0003] Problems existing in traditional plate and screw extraction: 1. The surgical incision and trauma are too large. 2. The operati...

Claims

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Application Information

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IPC IPC(8): A61B17/92
Inventor 杨洪武马新瑜徐杰曾逸文
Owner 南京医科大学附属南京第一医院
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