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High elastic scalp needle connecting duct material

A technology for connecting catheters and scalp needles, which is applied in the field of medical PVC modified materials, can solve the problems of high cost, poor elasticity, and patient injury, and achieve the effect of low cost and excellent elasticity

Active Publication Date: 2012-02-01
CHENGDU XINJIN SHIFENG MEDICAL APP ANDINSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plasticizer DOP (dioctyl phthalate) is highly mobile and accumulates in the blood, liver, kidney and lungs, which is harmful to the reproductive system of the human body and reacts with paclitaxel and other injections; The catheter is a thin tube used at the connection between the infusion needle and the infusion set. The tube needs to be soft, and the ordinary PVC hose has poor elasticity, so it is not suitable as a catheter connected to the scalp needle, and it is easy to cause harm to the patient.
Although there are PVC materials modified by TPU on the market, the cost is relatively high

Method used

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  • High elastic scalp needle connecting duct material
  • High elastic scalp needle connecting duct material
  • High elastic scalp needle connecting duct material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh raw materials (kg) according to the following ratio:

[0026] High polymerization degree PVC resin powder (polymerization degree is 2500) 90

[0027] PVC resin powder (polymerization degree is 1000) 20

[0028] Diisononyl cyclohexane-1,2-dicarboxylate 55

[0029] Paste Calcium Zinc 0.8

[0030] Tris(nonylphenyl)phosphite 0.7

[0031] Epoxidized soybean oil 3

[0032] Benzyl silicone oil 0.5

[0033] The preparation method is as follows:

[0034] Mixing: Add high-polymerization degree PVC resin powder with a degree of polymerization of 2500 and PVC resin powder with a degree of polymerization of 1000 and paste calcium zinc into the high-speed mixer at a low speed (operating speed is 441 rpm). When the temperature reaches 65°C Add cyclohexane-1,2-diisononyl dicarboxylate, tris(nonylphenyl phosphite), epoxidized soybean oil, turn to high speed (877 rpm) after 2 minutes, when the temperature reaches 110 After ℃, add benzyl silicone oil, continue to stir until ...

Embodiment 2

[0040] Weigh raw materials (kg) according to the following ratio:

[0041] High polymerization degree PVC resin powder (polymerization degree is 2500) 80

[0042] PVC resin powder (polymerization degree is 1000) 10

[0043] Diisononyl cyclohexane-1,2-dicarboxylate 50

[0044] Liquid Calcium Zinc 0.6

[0045] Phosphite monophenyl diisooctyl 0.3

[0046] Epoxidized soybean oil 1

[0047] Polyethylene wax 0.2

[0048] The preparation method is as described in Example 1.

Embodiment 3

[0050] Weigh raw materials (kg) according to the following ratio:

[0051] High polymerization degree PVC resin powder (polymerization degree is 2500) 100

[0052] PVC resin powder (polymerization degree is 1000) 30

[0053] Diisononyl cyclohexane-1,2-dicarboxylate 60

[0054] Paste Calcium Zinc 1.3

[0055] Tris(2,4-di-tert-butylphenyl)phosphite 1.2

[0056] Epoxidized soybean oil 6

[0057] Oxidized polyethylene wax 1

[0058] The preparation method is as described in Example 1.

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Abstract

The invention provides a high elastic scalp needle connecting duct material, which is characterized in that the connecting duct material comprises the following components in part by weight: 80-100 parts of high polymerization degree PVC resin powder with polymerization degree of 2500, 0-20 parts of PVC resin powder with polymerization degree of 1000, 50-60 parts of plasticizer, 0.6-1.3 parts of stabilizing agent, 0.3-1.2 parts of anti-oxidant, 1-6 parts of auxiliary stabilizing agent and 0.2-1 part of lubricant. The invention has the advantages that the material has low cost and is suitable for producing a connecting duct of a scalp needle of an infusion apparatus; the material has the excellent elasticity without containing DOP.

Description

technical field [0001] The invention relates to the field of medical PVC modified materials, in particular to a high-elastic non-DOP medical PVC scalp needle connecting catheter modified material. Background technique [0002] Medical PVC is one of the main raw materials for disposable medical devices. It has many advantages: chemical corrosion resistance, low permeability of gas and water vapor, comprehensive mechanical properties, and good product transparency. It is also the most cost-effective general-purpose material. However, the plasticizer DOP (dioctyl phthalate) is highly mobile and accumulates in the blood, liver, kidney and lungs, which is harmful to the reproductive system of the human body and reacts with paclitaxel and other injections; The catheter is a thin tube used at the connection between the infusion needle and the infusion set. The tube needs to be soft, and the ordinary PVC hose has poor elasticity. Although there are PVC materials modified by TPU on...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/12C08K5/098C08K5/526C08K5/1515C08K5/09B29B9/06
Inventor 张晓董合军李静
Owner CHENGDU XINJIN SHIFENG MEDICAL APP ANDINSTR CO LTD
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