Medical Grade Liquid Silicone Negative Pressure Suction Ball

# Medical Grade Liquid Silicone Negative Pressure Suction Ball

Product Overview

The Medical Grade Liquid Silicone Negative Pressure Suction Ball is a precision-engineered single-use or reusable medical device manufactured via injection molding of high-purity medical liquid silicone rubber (LSR), designed to generate controlled, consistent negative pressure for wound drainage, surgical fluid removal, and respiratory secretion management. Unlike traditional PVC or natural rubber suction bulbs, this LSR-based suction ball eliminates leachable plasticizers, latex allergens, and material degradation risks, making it suitable for long-term clinical use and sensitive patient populations.

Core features of the product include biocompatibility compliant with ISO 10993 standards, a calibrated rebound structure that delivers stable negative pressure output of 60–120 mmHg under manual compression, a leak-proof one-way valve design to prevent fluid backflow, and autoclavable (for reusable models) or gamma-sterilizable (for single-use models) compatibility. It is ergonomically shaped for one-handed operation, with a matte non-slip surface that reduces hand fatigue during prolonged clinical use, and is available in 30mL, 60mL, 90mL, and 120mL volumetric variants to match different clinical scenarios.

Technical Specifications

Material Properties

Physical Performance

Process Parameters

Product Advantages

1. Superior Biocompatibility for Sensitive Clinical Scenarios: Platinum-cured medical LSR contains no harmful additives or latex allergens, eliminating risks of contact dermatitis, tissue irritation, or toxic leaching even during extended contact with mucosal tissue or open wounds. It is validated for use in pediatric, geriatric, and immunocompromised patient populations where PVC and natural rubber devices carry safety risks.
2. Stable, Consistent Negative Pressure Performance: The optimized LSR elastic modulus and structural design ensure predictable negative pressure output across 10,000+ compression cycles, with no material fatigue or pressure decay over the product’s service life. Unlike PVC bulbs that harden and lose elasticity after repeated use or cold storage, this LSR suction ball maintains consistent performance across -40°C to 180°C operating temperatures.
3. Leak-Proof Backflow Prevention Design: The integrated one-way LSR valve is molded in a single co-injection process with the bulb body, eliminating assembly gaps that cause fluid leakage or backflow. The valve opens and closes with <0.2s response time, preventing aspirated fluid, blood, or secretions from re-entering the patient’s wound or airway, reducing cross-infection risks by 87% compared to assembled valve designs (internal clinical simulation data).
4. Ergonomic and Cost-Effective Operation: The matte non-slip surface and tapered shape reduce hand grip force by 30% compared to smooth PVC models, minimizing clinician fatigue during frequent use. Reusable models withstand 50+ autoclave cycles without degradation, reducing per-procedure costs by 60% compared to single-use PVC alternatives, while single-use models are pre-sterilized and ready for deployment in emergency settings.
5. : Medical LSR is inert and fully recyclable at end of life, with no toxic emissions during incineration, unlike PVC which releases dioxins when disposed of. The product meets EU RoHS and REACH regulations for hazardous substance restriction, supporting healthcare facilities’ sustainability goals.

Applications

The Medical Grade Liquid Silicone Negative Pressure Suction Ball is deployed across a wide range of clinical settings, including:

1. General and Minimally Invasive Surgery: Used for intra-operative and post-operative drainage of serous fluid, blood, and exudate from surgical sites including abdominal, thoracic, orthopedic, and plastic surgery procedures. The 90mL and 120mL variants are ideal for post-surgical closed wound drainage systems, delivering consistent negative pressure to prevent hematoma and promote tissue healing.
2. Emergency and Pre-Hospital Care: The 60mL portable variant is a core component of first aid kits and ambulance equipment, used for clearing upper airway secretions, blood, or vomit from unresponsive patients, as well as for emergency wound suction in trauma scenarios. Its resistance to extreme temperatures makes it suitable for use in field and disaster response settings.
3. Home Care and Chronic Wound Management: The 30mL and 60mL reusable variants are prescribed for at-home management of chronic wounds including pressure ulcers, diabetic foot ulcers, and venous stasis ulcers, as well as for post-discharge surgical drainage care. Patients and caregivers can operate the device with minimal training, and its autoclavable design supports repeated use over multi-week wound healing regimens.
4. Otolaryngology (ENT) and Dental Clinics: Used for suction of saliva, blood, and irrigation fluid during ENT procedures (tonsillectomy, sinus surgery) and dental surgeries (implant placement, wisdom tooth extraction). The non-toxic material is safe for contact with oral and nasal mucosal tissue, and the low-noise operation (≤ 30dB during compression and rebound) improves patient comfort during outpatient procedures.
5. Veterinary Medicine: Suitable for use in small and large animal clinical settings, for airway management, post-surgical drainage, and wound care, with a material formulation that resists degradation from animal saliva and veterinary disinfectants.

Application note: Ensure the suction ball is connected to a compatible drainage catheter of matching inner diameter (standard 6Fr to 18Fr connector compatibility) before use. For sterile applications, do not use if the Tyvek packaging is damaged or the expiration date has passed. Reusable models should be thoroughly cleaned of all fluid residue before autoclaving to prevent material staining or performance degradation.

Selection Guide

Hardness Selection

• 35 Shore A: Recommended for pediatric and neonatal applications, with lower compression force required for operation, and lower maximum negative pressure output (60–70 mmHg) to avoid damage to delicate tissue.
• 40 Shore A (standard): Universal hardness for most adult clinical scenarios, balanced compression force and negative pressure output, suitable for general surgery, emergency care, and dental/ENT use.
• 45 Shore A: Recommended for high-volume drainage scenarios including thoracic surgery and trauma care, with higher maximum negative pressure output (100–120 mmHg) for rapid removal of viscous exudate or blood clots.

Size Specifications

• 30mL: Ideal for pediatric use, ENT/dental outpatient procedures, and at-home chronic wound care for small wound sites, with a compact form factor that fits in portable first aid kits.
• 60mL: Universal size for emergency care, general surgery post-operative drainage, and routine veterinary use, balancing portability and fluid capacity.
• 90mL / 120mL: Designed for high-drainage scenarios including abdominal and thoracic surgery, large traumatic wound management, and inpatient post-surgical care, reducing the frequency of fluid emptying during use.

Material Grade

• Single-use grade: Gamma or EO sterilized, supplied in individual blister packaging, intended for one-time use to eliminate cross-infection risks, recommended for operating room, emergency department, and isolation ward use.
• Reusable grade: Validated for 50+ autoclave cycles, with a thicker LSR wall structure for improved durability, recommended for home care, outpatient clinics, and veterinary settings where repeated use is cost-effective.
• Implant-contact grade: Validated for up to 30 days of contact with exposed tissue and implant surfaces, suitable for post-orthopedic implant surgery and reconstructive plastic surgery drainage.

Quality Assurance

Our Medical Grade Liquid Silicone Negative Pressure Suction Ball is manufactured in an ISO 13485 certified cleanroom (Class 100,000) with full traceability of all raw materials from batch to finished product. Each unit undergoes 100% in-line testing for negative pressure leakage, valve function, and visual defects before packaging, with batch release testing including biocompatibility verification, sterilization validation, and cycle life testing.

The product holds the following certifications:

• CE marking in compliance with EU MDR 2017/745 (Class IIa medical device)
• FDA 510(k) clearance for use in general surgical drainage and airway management
• CFDA registration for clinical use in China
• Compliance with USP Class VI material requirements for implantable medical device components

We offer a 2-year warranty for reusable models against manufacturing defects, and a 5-year shelf life guarantee for unopened sterile single-use units when stored under recommended conditions (15–30°C, 40–60% relative humidity, away from direct sunlight and corrosive chemicals). Custom branding, packaging, and size modifications are available for OEM/ODM orders with a minimum order quantity of 5,000 units.