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Metal wire used in sternal closure surgery and manufacturing method thereof

A production method and metal wire technology, applied in the field of metal wire, can solve problems such as poor strength, and achieve the effect of improving compatibility and tissue compatibility

Inactive Publication Date: 2009-12-02
宋永春 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with stainless steel wire, pure titanium and commonly used titanium alloy wire have disadvantages such as poor strength, so for some operations, stainless steel wire is irreplaceable

Method used

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  • Metal wire used in sternal closure surgery and manufacturing method thereof
  • Metal wire used in sternal closure surgery and manufacturing method thereof
  • Metal wire used in sternal closure surgery and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Describe an embodiment of the present invention below in conjunction with accompanying drawing

[0020] In this embodiment, the material of the metal wire for clinical operation is titanium alloy Ti-6Al-7Nb.

[0021] figure 1 The shape of this example is shown: it is 300 mm long and 1 mm in diameter. Both ends of the wire are pointed.

[0022] figure 2 , image 3 respectively figure 1 A-A sectional view and partial enlarged view of B. Titanium alloy wire adopts surface bioactive coating treatment technology, so that the surface of the wire forms a rough ceramic oxide film with many pits.

[0023] Figure 4 , Figure 5 Shows the processing status of a metal wire subjected to micro-arc oxidation. Put the metal wire on the porous jig, the jig is paired up and down, and the material is copper. The fixture is circular, with a diameter of 60mm and a thickness of 20mm, and 104 round holes with a diameter of 2mm are evenly distributed. . Metal wire surface treatmen...

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Abstract

The invention relates to a metal wire used in a clinic cardiac sternal closure surgery and a manufacturing method thereof. The metal wire is made of a titanium alloy Ti-6Al-7Nb wire subjected to bioactive coating treatment. Tests show that the Ti-6Al-7Nb wire has excellent mechanical properties similar to those of a stainless steel wire and excellent compatibility similar to human tissues and avoids damages to human bodies. After the further surface bioactive coating treatment of the metal wire, a ceramic oxide film with a plurality of pits are formed on the surface of the wire, so the compatibility of the meal wire with the human tissues is further improved. The Ti-6Al-7Nb wire can be implanted into a human body permanently and can meet requirements on the metal wires used in the clinic cardiac sternal closure surgeries.

Description

technical field [0001] The invention relates to a metal wire used in clinical operations, in particular to a non-magnetic metal wire used in sternal closure of heart surgery and a manufacturing method thereof. Background technique [0002] In current clinical cardiac surgery, stainless steel wire is usually used as the suture when closing the sternum. Although stainless steel wire has good deflection, fatigue resistance and tensile strength, long-term implantation of stainless steel wire into the human body has great disadvantages: First, more than half of the patients receiving cardiac surgery are children (such as congenital atrial and ventricular valve defects) patient). The permanent implant of the stainless steel wire means these children cannot undergo tests such as MRIs later in life. Because of this, the hospital clearly informs all patients and family members who undergo heart surgery that "the steel wire is permanently implanted, and the patient cannot undergo MR...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L17/04A61B17/04C25D11/26C25D7/06
Inventor 宋永春曹罡
Owner 宋永春