Shanghai Orsin Medical Technology Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 20million/pcs/moth |
| Delivery Time | 1-4 weeks |
| Merit | convenient and efficient |
| Shipping Options | Sea, Air, Train |
| Sterilization Method | Ethylene Oxide |
| Coagulant | Orsin-specific coagulant |
| Application | Hospital, Laboratory, Clinic |
| Specialized Tube | Clot Activator tube |
| Shelf Life | 3 Years |
| Platelet Activity | Stability upheld |
| Advantages | Superior sample quality |
| Anticoagulant Properties | Excellent |
| Brand Name | Orsin |
| Model Number | Gel Clot ActivatoR |
| Certification | ISO 13485 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 20million/pcs/moth |
| Delivery Time | 1-4 weeks | Merit | convenient and efficient |
| Shipping Options | Sea, Air, Train | Sterilization Method | Ethylene Oxide |
| Coagulant | Orsin-specific coagulant | Application | Hospital, Laboratory, Clinic |
| Specialized Tube | Clot Activator tube | Shelf Life | 3 Years |
| Platelet Activity | Stability upheld | Advantages | Superior sample quality |
| Anticoagulant Properties | Excellent | Brand Name | Orsin |
| Model Number | Gel Clot ActivatoR | Certification | ISO 13485 |
| Place of Origin | China |
Red-top vacuum blood collection tubes are primarily classified into two types with distinct purposes:
Additive-Free Plain Tube (Classic Red Top):
Contains no anticoagulants or clot activators; relies on natural blood coagulation to separate serum.
Suitable for: Serum biochemistry (liver/kidney function, cardiac enzymes, electrolytes), thyroid function, tumor markers, immunology (e.g., syphilis, HBV quantification), blood bank cross-matching.
Clot Activator Tube (Red or Orange-Red Top ):
Interior coated with clot activators to accelerate coagulation (5–15 minutes).
Suitable for: Emergency biochemistry, rapid serological immunology, pharmacokinetic studies, and other time-sensitive tests.
| Feature | Additive-Free Plain Tube | Clot Activator Tube |
|---|---|---|
| Additive | None | Clot activator (uniformly coated) |
| Clotting Time | Natural (30–60 minutes) | Rapid (5–15 minutes) |
| Serum Quality | Silicone-coated wall minimizes wall adhesion and hemolysis risk | Uniform activation reduces fibrinogen precipitation; yields clear serum |
| Anti-Interference | Additive-free, ideal for sensitive immunoassays | Physical activation avoids chemical contamination |
| Application Scope | Routine biochemistry, blood banking, long-term sample storage | Emergency tests, rapid reporting |
Sample Handling Protocol:
Additive-Free Tube: After collection, let stand upright (no mixing). Incubate at 37°C for ≥30 minutes to accelerate clotting before centrifugation.
Clot Activator Tube: Invert gently 5–8 times immediately after collection (ensuring contact with activator). Let stand upright for 15–20 minutes before centrifugation.
❗ Critical: Inadequate mixing or insufficient standing time may cause "fibrin microclots" (jelly-like serum), affecting test accuracy (e.g., estradiol, Down syndrome screening).
General Contraindications:
Never transfer blood from other tubes into red-top tubes to avoid cross-contamination.
Fill to the nominal volume (e.g., 6ml/10ml) to ensure proper serum yield.
Avoid vigorous shaking to prevent hemolysis.
| Issue | Cause | Solution |
|---|---|---|
| Insufficient Fill | Vacuum loss / venous collapse / needle not penetrating stopper | Check tube seal; reposition needle or tap vein; insert needle vertically |
| Poor Serum Separation | Inadequate mixing / insufficient standing time | Re-invert tube; extend standing time to 30 minutes |
| Fibrin Microclots | Incomplete fibrin precipitation | Stir clot with wooden stick; re-centrifuge |
| Hemolysis | Excessive mixing / needle scraping tube wall | Gently invert; avoid needle contact with inner wall |
| Parameter | Specifications |
|---|---|
| Volume | 1ml-10ml (6ml/10ml most common) |
| Material | Glass or PET plastic (shatter-resistant) |
| Storage | Room temperature, dark; avoid freezing (prevents breakage) |
| Shelf Life | Typically 2–3 years (verify packaging label) |
Red-top vacuum blood collection tubes are indispensable for biochemistry and immunology testing due to their additive-free purity (plain tubes) and rapid separation capability (clot activator tubes). Strict adherence to protocols—distinguishing tube types, proper mixing, and standing time—is essential to ensure serum integrity. Clot activator tubes excel in emergencies, while additive-free tubes remain the gold standard for precision testing and long-term storage.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Trading Company,Seller
Year Established:
2010
Employee Number:
30~60
Ecer Certification：
Verified Supplier
Shanghai Orsin Medical Technology Co., Ltd. is located in No. 599, Wanhua Road, Zhelin Town, Fengxian District, Shanghai. Is China's production of one-time vacuum collection of professional companies, Shanghai Medical Device Industry Backbone Enterprises. The product takes Orsin pattern as the r... Shanghai Orsin Medical Technology Co., Ltd. is located in No. 599, Wanhua Road, Zhelin Town, Fengxian District, Shanghai. Is China's production of one-time vacuum collection of professional companies, Shanghai Medical Device Industry Backbone Enterprises. The product takes Orsin pattern as the r...
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