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Disposable needle tip sheath for sampling blood and preparation method thereof

A manufacturing method and disposable technology, applied in the field of medical devices, can solve problems such as the inability to reliably protect nurses from blood sample contamination, poor closure and sealing of puncture holes, and inability to bounce back needle tips, etc., to achieve strong resilience, excellent self-sealing performance, and anti-aging good performance

Active Publication Date: 2014-11-12
丹阳市金晟医用橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The needle tip sheath used in the existing market has unstable performance during puncture and rebound, and sometimes cannot rebound to completely cover the needle tip, or the puncture hole is poorly closed and sealed, and cannot reliably protect nurses from blood sample contamination

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) batching: accurately take by weighing zinc oxide 2.5kg, stearic acid 1.5kg, antioxidant 2246 0.5kg, white carbon black 955-1 8kg, glycerin 0.3kg, polyisobutylene BH-100 2.5kg, calcined clay 10kg , Titanium dioxide GA-100 1.0kg, accelerator DM0.4kg, accelerator PZ1.0kg, accelerator CZ0.1kg, DTDM0.7kg, sulfur 0.5kg, grafting agent JT-510A2kg, carbon black N330 0.2kg, evenly mixed backup;

[0017] (2) mastication and kneading: accurately weigh 100kg of natural rubber (or synthetic rubber), after masticating according to the traditional rubber process method, knead with the uniformly mixed raw materials in step (1);

[0018] (3) film production: the raw material kneaded through step (2) is put into the film unloader to make film;

[0019] (4) vulcanization: put the film made in step (3) into a molding die, and put the die into a vulcanizer, and vulcanize it for 180 to 210 seconds at a temperature of 155°C to 175°C to make a semi-finished product;

[0020] (5) trimming...

Embodiment 2

[0023] (1) batching: accurately take by weighing zinc oxide 4kg, stearic acid 0.5kg, antioxidant 2246 2kg, white carbon black 955-1 6kg, glycerin 0.8kg, polyisobutylene BH-100 2.0kg, calcined clay 12kg, titanium White powder GA-100 0.4kg, accelerator DM 1.0kg, accelerator PZ 0.4kg, accelerator CZ 0.5kg, DTDM 0.3kg, sulfur 2kg, grafting agent JT-510A 1.0kg, carbon black N330 0.6kg, evenly mixed for backup use;

[0024] (2) mastication and kneading: accurately weigh 100kg of natural rubber (or synthetic rubber), after masticating according to the traditional rubber process method, knead with the uniformly mixed raw materials in step (1);

[0025] (3) film production: the raw material kneaded in step (2) is put into the film unloader to make film;

[0026] (4) vulcanization: put the film made in step (3) into a molding die, and put the die into a vulcanizer, and vulcanize it for 180 to 210 seconds at a temperature of 155°C to 175°C to make a semi-finished product;

[0027] (5) ...

Embodiment 3

[0030] (1) batching: accurately take by weighing zinc oxide 3kg, stearic acid 1kg, anti-aging agent 2246 1kg, white carbon black 955-1 7kg, glycerin 0.5kg, polyisobutylene BH-100 2.2kg, calcined clay 11kg, titanium dioxide GA-100 0.5kg, accelerator DM 0.5kg, accelerator PZ 0.5kg, accelerator CZ 0.3kg, DTDM 0.5kg, sulfur 1kg, grafting agent JT-510A 1.5kg, carbon black N3300.4kg, mixed evenly for later use ;

[0031] (2) mastication and kneading: accurately weigh 100kg of natural rubber (or synthetic rubber), after masticating according to the traditional rubber process method, knead with the uniformly mixed raw materials in step (1);

[0032] (3) film production: the raw material kneaded through step (2) is put into the film unloader to make film;

[0033] (4) vulcanization: put the film made in step (3) into a molding die, and put the die into a vulcanizer, and vulcanize it for 180 to 210 seconds at a temperature of 155°C to 175°C to make a semi-finished product;

[0034] (5...

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PUM

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Abstract

The invention provides a disposable needle tip sheath for sampling blood and a preparation method thereof. The method comprises the following steps: mixing zinc oxide, a stearic acid, an anti-aging agent 2246, white carbon black 955-1, glycerol, polyisobutene BH-100, calcined clay, titanium dioxide GA-100, an accelerant DM, an accelerant PZ, an accelerant CZ, DTDM, sulphur, a grafting agent JT-510A and carbon black N330 serving as auxiliary materials with natural rubber (or synthetic rubber); respectively preparing a film and a semi-finished product; and deflashing, cleaning, drying and checking the film and the semi-finished product, so as to obtain the needle tip sheath. The disposable needle tip sheath for sampling blood provided by the invention is good in ageing resistance, large in resilience force, excellent in self-sealing performance, and free of pyrogen reaction, and can well meet with the relevant standards of medical equipment.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a needle tip sheath for disposable blood collection and a manufacturing method thereof. Background technique [0002] One-time use of vacuum blood collection eliminates the need for post-collection processing such as blood sample packaging, avoids contamination or pouring of blood samples during operation, and has the characteristics of high sterility and good airtightness. The use of lancet sheaths can prevent nurses from becoming infected by direct contact with blood. When the blood collection needle tip is inserted into the vacuum blood collection tube, the sheath is pierced by the needle tip and then compressed; when the blood collection needle is pulled out from the vacuum blood collection tube, the sheath should spring back quickly and still completely wrap the needle tip, and the puncture hole should still be completely Closed without leakage. [0003] The need...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L21/00C08K13/02C08K3/22C08K3/36C08K3/34C08K3/04C08K3/06
Inventor 桂双才
Owner 丹阳市金晟医用橡塑制品有限公司
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