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Degradable composite material for manufacturing uterine curettage spoon

A composite material and palace spoon technology, applied in the field of degradable composite materials, can solve problems such as no consideration of degradation performance, plastic pollution, poor degradation performance, etc.

Active Publication Date: 2021-06-08
台州市中心医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current curettage spoons are usually made of stainless steel and are used for many times. However, such curettage spoons usually need to be disinfected before use, and there may be insufficient disinfection during use or during the transfer process. There is a risk of cross-infection, and the disinfection process also increases the workload of medical staff
Although there are existing curettage spoons made of plastic materials, they are not good in terms of degradation performance or directly use non-degradable plastic materials. Most of them do not consider the degradation performance, and it is easy to cause a large amount of plastic pollution after use. can also cause serious environmental pollution

Method used

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  • Degradable composite material for manufacturing uterine curettage spoon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The degradable composite material that is used for curettage spoon making of the present embodiment comprises the parts by weight of following composition:

[0025] Polylactic acid-glycolic acid copolymer: 70; chitosan oligosaccharide: 15, and the weight average molecular weight of chitosan oligosaccharide is 3000Da; polypivalolactone: 6.2; antioxidant: 8.0, using antioxidant 1010; Toughening agent: 9.0, composite toughening agent of tributyl citrate and polyethylene glycol; biodegradable fiber reinforcement polylactic acid fiber: 13, length 2mm; modified inorganic filler: 5.0, modified inorganic filler It is made of polylactic acid coated nano-silica particles, and the mass ratio of polylactic acid to nano-silica in the modified inorganic filler is 1:0.3.

[0026] The above-mentioned composite material is used to make the method of curettage spoon adopting the conventional processing method in this field, specifically can be processed by the following method:

[0027]...

Embodiment 2

[0029] The degradable composite material that is used for curettage spoon making of the present embodiment comprises the parts by weight of following composition:

[0030] Polylactic acid-glycolic acid copolymer: 60; chitosan oligosaccharide: 10, and the weight average molecular weight of chitosan oligosaccharide is 3000Da; polypivalolactone: 5.0; antioxidant: 8.0, using antioxidant 1010; Toughening agent: 8.0, composite toughening agent of tributyl citrate and polyethylene glycol; biodegradable fiber reinforcement material polylactic acid fiber: 12, length 3mm; modified inorganic filler: 4.0, modified inorganic filler It is made of polylactic acid coated nano-silica particles, and the mass ratio of polylactic acid to nano-silica in the modified inorganic filler is 1:0.25.

[0031] The manufacturing method of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

Embodiment 3

[0033] The degradable composite material that is used for curettage spoon making of the present embodiment comprises the parts by weight of following composition:

[0034] Polylactic acid-glycolic acid copolymer: 65; chitosan oligosaccharide: 13, and the weight average molecular weight of chitosan oligosaccharide is 2500Da; polypivalolactone: 5.5; antioxidant: 6.0, using antioxidant 1010; Toughening agent: 8.5, composite toughening agent of tributyl citrate and polyethylene glycol; biodegradable fiber reinforcement polylactic acid fiber: 10, length 4mm; modified inorganic filler: 2.0, modified inorganic filler It is made of polylactic acid coated nano-silica particles, and the mass ratio of polylactic acid to nano-silica in the modified inorganic filler is 1:0.2.

[0035] The manufacturing method of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to a degradable composite material for manufacturing a uterine curettage spoon, and belongs to the technical field of medical instrument materials. In order to solve the risk that an existing non-disposable uterine curettage spoon is prone to infection, the degradable composite material for manufacturing the uterine curettage spoon is provided. The degradable composite material comprises the following components in parts by weight: 60-70 parts of polylactic acid-glycolic acid copolymer, 10-15 parts of chitosan oligosaccharide, 5.0-6.2 parts of poly (neopentyl lactone), 1.0-8.0 parts of an antioxidant, 8.0-9.0 parts of a composite toughening agent, 10-13 parts of biodegradable fiber reinforced material, and 2.0-5.0 parts of modified inorganic filler, wherein the modified inorganic filler is prepared by coating nano silicon dioxide particles with polylactic acid. According to the invention, the invention can ensure that the whole material has basically complete degradation capability, and has the effect of high strength performance.

Description

technical field [0001] The invention relates to a degradable composite material used for making curettage spoons, and belongs to the technical field of medical device materials. Background technique [0002] Dettage is a common method for clinical diagnosis and treatment of gynecological diseases. It is an operation to scrape endometrium or uterine cavity contents. It is divided into two types: diagnostic curettage and therapeutic curettage. At present, the main tool when performing curettage to a patient clinically is exactly a curettage spoon. Usually, when performing a curettage to a patient clinically, the depth of the uterus is first probed with a probe, and then the curettage spoon is used for clear curettage. Current curettage spoons are usually made of stainless steel and are used for many times. However, such curettage spoons usually need to be disinfected before use, and there may be insufficient disinfection during use or during the transfer process. There is a r...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L5/08C08L1/02C08K9/10C08K7/26C08K7/06C08K5/19C08K5/09C08K5/3445C08K13/06
CPCC08L67/04C08L2205/035C08L2205/025C08L2205/16C08L2201/06C08K2201/011C08L5/08C08K9/10C08K7/26C08L1/02C08K7/06C08K5/19C08K5/09C08K13/06C08K5/3445
Inventor 瞿向东张玲杜二球谢吉蓉张优扬
Owner 台州市中心医院
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