Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of hollow needle material for medical products

A hollow needle and product technology, which is applied in the field of medical titanium alloy material processing, can solve the problems of difficult processing of thick-walled and small-diameter hollow needle materials, and achieve the effect of simple equipment and processing technology, stable inner and outer diameters, and mass production.

Active Publication Date: 2022-08-09
中科锐金山东钛业科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a method for preparing hollow needle materials for medical products, in order to solve the problem of difficult processing of hollow needle materials with thick walls and small apertures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of hollow needle material for medical products
  • A kind of preparation method of hollow needle material for medical products
  • A kind of preparation method of hollow needle material for medical products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this embodiment, the preparation method of medical products with hollow needle materials is as follows:

[0038] Step 1. Select a rod with φ30.0mm. Machining the inner holes of φ8.0mm in a mechanical drilling.

[0039] Step 2: Select the stainless steel core rod. The rough surface roughness of the core rod is not greater than RA1.6 microns.

[0040] Step 3: MOS on the surface of the core rod 2 The coating is lubricated and filled in the hole; MOS 2 The thickness of the coating is 0.1 to 0.2mm, and the ends of both ends are sealed after filling.

[0041] Step 4. Use a rotary forging process to process the rod below φ20mm. The core rods are extracted and replaced between the two adjacent fires.

[0042] Step 5. Pull the rod billet below φ20mm. Use a fixed core rod or swim the core rod to pull out, or pull it with the deformation method of the core rod, pull it to the outer diameter φ4.5mm.

[0043] Step 6. Using bilateral straight straight, the surface temperature during t...

Embodiment 2

[0051] In this embodiment, the preparation method of medical products with hollow needle materials is as follows:

[0052] Step 1. Select a rod with φ45.0mm. Machining the inner hole of φ10.0mm in a mechanical drilling method. The wall of the hole is smooth, and the surface roughness is not greater than RA1.6 microns.

[0053] Step 2: Select the stainless steel core rod. The rough surface roughness of the core rod is not greater than RA1.6 microns.

[0054] Step 3: MOS on the surface of the core rod 2 The coating is lubricated and filled in the hole; MOS 2 The thickness of the coating is 0.2 to 0.3mm, and the ends of both ends are sealed after filling.

[0055] Step 4. Use a rotary forging process to process the rod below φ20mm. The core rods are extracted and replaced between the two adjacent fires.

[0056] Step 5. Pull the rod billet below φ20mm. Use a fixed core rod or swim the core rod to pull out, or use the core rod to follow the deformed method to pull the outer diameter φ...

Embodiment 3

[0065] In this embodiment, the preparation method of medical products with hollow needle materials is as follows:

[0066] Step 1: Select a rod of φ60.0mm, and process the inner hole of φ15.0mm in a mechanical drilling. The wall of the hole is smooth, and the surface roughness is not greater than RA1.6 microns.

[0067] Step 2: Select the stainless steel core rod. The rough surface roughness of the core rod is not greater than RA1.6 microns.

[0068] Step 3: MOS on the surface of the core rod 2 The coating is lubricated and filled in the hole; MOS 2 The thickness of the coating is 0.3 to 0.4mm, and the ends of both ends are sealed after filling.

[0069] Step 4. Use a rotary forging process to process the rod below φ20mm. The core rods are extracted and replaced between the two adjacent fires.

[0070] Step 5. Pull the rod billet below φ20mm. Use a fixed core rod or swim the core rod to pull out, or pull it with the method of following the deformation, pull it to the outer diamete...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
surface roughnessaaaaaaaaaa
surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of processing titanium alloy materials for medical use, and particularly relates to a preparation method of a hollow needle material for medical products. The outer diameter of the hollow needle material is 4.0-6.0 mm, and the inner hole size is 0.8-1.5 mm. First, a round bar blank of a certain size is obtained through the smelting and forging process; then the through hole is machined by mechanical drilling, and a suitable mandrel is selected to be filled and then forged and drawn; finally, the finished wire is prepared by straightening, stress relief annealing, grinding and polishing material. The method of the invention can obtain a hollow needle wire material with a central hole diameter of 0.8-1.5 mm, which provides qualified raw materials for manufacturing orthopedic medical products.

Description

Technical field [0001] The present invention is a medical technology field for medical treatment, and it involves a preparation method for a hollow needle material for medical products. Background technique [0002] Titanium alloy has excellent biocompatibility, corrosion resistance, non -magnetic, non -toxic, and is widely used in the medical field. In the medical field, the treatment method for femoral head necrosis is a culcatory pressure decompression, but this surgery will cause a weak support structure in the femoral head. Therefore, the hollow nails of the hollow titanium rod are needed to support it. At present, there are a series of problems such as core stick selection, surface lubrication, and internal hole processing during the production process of titanium alloy hollow rods. Invention content [0003] The technical problem solved by the present invention is to provide a method of preparation of hollow needle materials for medical products, in order to solve the pro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B21G1/08
CPCB23P15/00B21G1/08B21G1/006
Inventor 柏春光张志强赵建杨锐
Owner 中科锐金山东钛业科技有限公司