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

A copper-containing birth control material adopting a PEO-LDPE alloy as a substrate and a device of the same

A technology of alloy matrix and composite materials, applied in surgery, medical science, etc., to achieve the effects of reducing surface area, ensuring service life, and increasing release rate

Active Publication Date: 2016-05-04
HUAZHONG UNIV OF SCI & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existing technology does not solve this series of problems well

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 copper-containing birth control material adopting a PEO-LDPE alloy as a substrate and a device of the same
  • A copper-containing birth control material adopting a PEO-LDPE alloy as a substrate and a device of the same
  • A copper-containing birth control material adopting a PEO-LDPE alloy as a substrate and a device of the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 10g of polyethylene oxide (PEO), 70g of medical grade low-density polyethylene (LDPE), 10g of nano-copper, and 10g of submicron copper, first blend PEO and LDPE evenly, and then add nano-copper and submicron copper Mix evenly, and finally adopt methods such as pressure injection or injection molding to prepare a copper-containing birth control material based on PEO-LDPE alloy, that is, Cu / PEO-LDPE composite material and its device.

Embodiment 2

[0028] Weigh 5g of polyethylene oxide (PEO), 70g of medical grade low-density polyethylene (LDPE), 10g of nano-copper, and 15g of micron-copper, first blend PEO and LDPE evenly, then add nano-copper and micron-copper to blend evenly , and finally adopt pressure injection or injection molding and other methods to prepare a copper-containing birth control material based on PEO-LDPE alloy, that is, Cu / PEO-LDPE composite material and its device.

[0029] Examples 3-23 were all prepared by a method similar to that of Example 1 and Example 2, wherein the components of the prepared Cu / PEO-LDPE composite material and its devices are shown in Table 1.

[0030] In addition, Example 24 is a Cu / LDPE composite material containing submicron copper 15wt% with the same shape and the same size prepared by the same equipment and the same process, and is used for comparative research: Weigh 85g of medical grade low density polyethylene (LDPE), 15g of submicron copper particles, after blending th...

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

No PUM Login to View More

Abstract

A copper-containing birth control material adopting a PEO-LDPE alloy as a substrate, namely a Cu / PEO-LDPE composite material, and a device of the same are disclosed. The Cu / PEO-LDPE composite material comprises a PEO-LDPE alloy substrate and copper-containing metal particles distributed in the substrate, wherein the weight percentage of the copper-containing metal particles is 0.5-30%, and the weight percentage of PEO in the PEO-LDPE alloy substrate in the Cu / PEO-LDPE composite material is 0.5-30% (preferentially 5-15%). Compared with Cu / LDPE birth control materials, Cu-IUDs prepared from the novel birth control material are advantaged by greatly reduced weights, excellent compatibility with endometria, and the like, thus ensuring service lifetime of the prepared Cu-IUDs and theoretically greatly reducing hemorrhage, pain and other side effects caused by the Cu-IUDs.

Description

technical field [0001] The invention relates to a copper-containing intrauterine device material and its device, in particular to a copper-containing birth control material based on a polymer alloy of polyethylene oxide (PEO) and low-density polyethylene (LDPE), namely Cu / PEO - LDPE composite material and its devices. technical background [0002] Contraception is a problem that every healthy family must face for a long time. According to the relevant data in the "China Population and Employment Statistical Yearbook-2013", male sterilization, female sterilization, intrauterine device, subcutaneous implant, oral and injectable contraceptives, condoms, external medicine and others are available for people to choose. Among the contraceptive measures, the total number of people who placed intrauterine devices (Intrauterine Devices, IUDs) in 2012 was about 132 million, accounting for 54.2% of the total number of 243 million people who used various contraceptive measures that yea...

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 Applications(China)
IPC IPC(8): A61L31/02A61L31/06A61L31/04A61L31/14A61L31/16
CPCA61L31/022A61L31/048A61L31/06A61L31/146A61L31/16A61L2300/102A61L2300/602C08L23/30C08L23/06
Inventor 夏先平王欢刘知为
Owner HUAZHONG UNIV OF SCI & TECH