Anorectal pocket formation

An ostomy pouch is a medical device designed to collect bodily waste, such as urine or feces.

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I. Classification

Ostomy pouches are generally categorized into three types:

1. Closed-End Pouches
   Suitable for users requiring pouch replacement no more than once daily.

2. Drainable Pouches
   Designed for semi-formed or liquid stool, allowing frequent emptying as needed.

3. Urostomy Pouches
   Specifically for urine and liquid drainage, equipped with an anti-reflux valve and compatibility with drainage bags.

By Application:

1. Single-Use Pouches
2. Double-Use Pouches

By Design:

1. One-Piece Systems
   Typically disposable with pre-cut openings for ease of use, ideal for dexterous users or the elderly.

2. Two-Piece Systems
   Feature separable pouches and adhesive bases, enabling base retention during pouch changes. Benefits include:

   • Skin protection around the stoma.
   • Customizable base cutting to match stoma size.
   • Floating flange design to avoid abdominal pressure.
     Note: Not recommended for patients with stoma prolapse, parastomal hernias, or peristomal凹陷 (use convex bases for recessed stomas).

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II. Materials

1. Co-Extruded Film
   Made from multi-layer PE (high-barrier), EVA, or TPE films, offering:

   • Soft texture and superior odor resistance.
   • Biocompatibility and antimicrobial properties to reduce infection risks.
   • Durability and wear resistance for long-term use.

2. Silicone
   A flexible, durable organic material with:

   • Excellent biocompatibility and antimicrobial performance.
   • Superior sealing to prevent leaks.
     Drawback: Limited breathability, which may cause skin irritation or eczema.
     Ideal for chronic conditions (e.g., diabetes) requiring long-term comfort.

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III. Applications

Ostomy pouches are widely used in medical settings for patient care, including:

1. Urinary Incontinence
   Collect urine/feces to minimize contamination of clothing and surroundings.

2. Gas Relief
   Assist patients with intestinal obstruction or post-surgery gas drainage.

3. Constipation Management
   Facilitate stool collection and support complementary therapies (e.g., medication, dietary adjustments).

4. Hernia Repair
   Post-surgical use with synthetic mesh implants to prevent abdominal contamination.

5. Radiation Therapy
   Manage secretions from skin ulcers caused by cancer radiotherapy.

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IV. Production Process

Manufacturing scales vary based on output demands:

• Automated High-Frequency (HF) Equipment
• Semi-Automated HF Systems
  Recommended: Puxiong Group’s Four-Station Rotary Heat Sealing Machine
  • Integrates sealing and cutting in one step for precision and strength.
  • Automated four-station cycle enhances efficiency.
  • PLC control system for accuracy, user-friendliness, and multi-recipe storage.
  • Versatile for diverse medical products via mold changes, maximizing ROI.