laparoscopic instruments manufacturers

In laparoscopic surgery, the safe extraction of pathological tissues or resected organs is a critical step. Laparoscopic bags, are precise tools addressing this challenge. These seemingly simple bags are actually key equipment to prevent contamination and ensure surgical safety. This article provides a comprehensive guide to Laparoscopic Bags 101: Types, Features, and Applications in Surgery.

Laparoscopic Specimen Retrieval Bags: Indispensable Partners in Minimally Invasive Surgery

Core Purpose

In laparoscopic procedures, safely and intactly extract resected specimens (e.g., gallbladder, appendix, lymph nodes, uterine fibroids, spleen, kidney, or suspicious tissues) through a 5–12mm Trocar channel.

Critical Value

Containment: Effectively isolates infectious, potentially malignant, or fragile tissues to prevent leakage of contents (e.g., bile, pus, tumor cells) that could contaminate the abdominal cavity or trocar tract, reducing risks of postoperative infection and implantation metastasis.

Facilitated Removal: Allows large or irregular specimens to be morcellated within the bag (using a tissue morcellator) or extracted through small incisions via curling/folding.

Maintain Pneumoperitoneum: Helps maintain CO₂ pneumoperitoneum pressure during extraction to ensure clear surgical fields.

Protect Port Site: Reduces direct contact between specimens and incision edges, minimizing risks of incision complications.

Main Types: Tailored for Diverse Surgical Needs

Classified by Material & Structure

Non-Impermeable Specimen Retrieval Bags

Material: Typically blue non-woven fabric.

Features: Lower cost, high flexibility for easy folding/unfolding and specimen loading. Suitable for benign, non-infectious, non-fragile tissues (e.g., uterine fibroids, non-perforated appendix, ovarian cysts). Lacks liquid/cell leakage prevention.

Impermeable/Isolation Specimen Retrieval Bags

Material: Usually multi-layer composite films (e.g., nylon/polyethylene/barrier layers), clear or yellow.

Features: Core advantage: complete prevention of liquid and cell leakage! Equipped with secure sealed edges (heat-sealed or glued). The gold standard for extracting infectious (e.g., purulent perforated appendix, abscesses), potentially malignant, or fragile tissues (e.g., gallbladder, spleen), offering the highest protection level.

Endocatch Type (with Metal Deployment Ring)

Features: The classic self-deploying bag, pre-loaded in a slim deployment tube with a foldable metal spring ring (or plastic memory ring) at the front. Inserted through a Trocar, pushing the handle releases the ring to automatically expand into a circular/oval shape, opening the bag mouth.

Advantages: One-handed operation, stable opening for easy specimen capture in deep/narrow spaces; the mouth can be closed after extraction. Mostly made of impermeable materials.

Pouch Type (without Rigid Ring)

Features: No rigid support ring, pre-loaded in a deployment tube or folded in an introducer. The mouth is opened and fixed by instruments (e.g., grasper) inside the abdomen.

Advantages: Lower cost, compatible with thinner Trocars (e.g., 5mm), and more flexible opening shape after deployment. Available in both impermeable and non-impermeable materials.

Key Features: Ensuring Safety & Efficiency

Material Safety & Strength

Medical-grade Materials: All laparoscopic bags must use biocompatible, non-toxic, and harmless materials.

Tear Resistance: The bag body must have sufficient mechanical strength to withstand grasper clamping and sharp edges (e.g., bone fragments, stones) to prevent intraoperative rupture—critical for impermeable bags.

Impermeability (Critical for Isolation Bags)

Multi-layer composite structure ensures no liquid, cells, or tiny particles can penetrate the wall.

User-Friendly Design

Smooth Deployment: E.g., Endocatch's spring ring deploys quickly and reliably; pouch types are easy to open with instruments.

Large Opening: Facilitates loading specimens of various shapes and sizes.

Secure Closure Mechanism: Typically equipped with a pre-installed drawstring. After loading, the string is tightened, pulled out, and knotted or clamped to ensure full sealing and prevent spillage during extraction.

Clear Visibility: Transparent or semi-transparent body allows intraoperative observation of the specimen.

Introducer System: Ingeniously designed deployment tubes/introducers slide smoothly through Trocars with minimal resistance.

Size Variety

Offered in multiple specifications , adapting to specimens from lymph nodes to spleens. Choosing the right size is crucial.

Wide Applications Across Surgical Procedures

Laparoscopic Cholecystectomy

Extracting gallbladders with stones is mandatory. Impermeable Endocatch or similar bags are preferred to prevent bile and stone leakage, typically using 10mm bags.

Laparoscopic Appendectomy

For purulent or perforated appendix, impermeable bags are essential to isolate infection sources, sized according to swelling.

Laparoscopic Splenectomy

The large, vascular-rich spleen is morcellated in a large/extra-large impermeable bag (using a morcellator) before extraction.

Laparoscopic Nephrectomy/Partial Nephrectomy

Kidneys or renal tumors require large impermeable bags; small specimens from partial nephrectomy use medium/small bags.

Gynecologic Surgery

Myomectomy: Extracting fibroids, using non-impermeable or impermeable bags.

Ovarian Cystectomy/Salpingo-Oophorectomy: Removing cysts or adnexal tissues.

Hysterectomy: In laparoscopic-assisted vaginal hysterectomy (LAVH) or total laparoscopic hysterectomy (TLH), the uterus is morcellated in a large impermeable bag.

Laparoscopic Colorectal Surgery

Extracting resected intestine, tumors, or lymph nodes; choose impermeable/non-impermeable bags based on specimen nature.

Lymph Node Dissection

Extracting dissected lymph nodes (especially suspicious ones) requires impermeable bags to prevent potential tumor cell spread.

Other Procedures: Adrenalectomy, removal of cyst walls after hepatic cyst fenestration, abdominal abscess drainage, etc.

Safeguarding Minimally Invasive Surgery with a Trusted Partner

Laparoscopic bags are far more than simple containers—they are indispensable links in the laparoscopic safety chain. Their tight impermeability, reliable tear resistance, and user-friendly self-deployment/closure designs ensure safe extraction of infectious, malignant, or fragile specimens, minimizing secondary harm to patients. Choosing the right type (impermeable/non-impermeable, ringed/pouch) and size is vital for surgical success.

As a professional laparoscopic instruments manufacturer focused on minimally invasive surgical devices, Segimed deeply understands the strict requirements for retrieval bag performance and reliability in operating rooms. We offer a full range of laparoscopic specimen retrieval bag solutions.

Choose Segimed laparoscopic specimen retrieval bags to add peace of mind to every minimally invasive procedure. We are committed to being a trusted partner for surgeons worldwide through innovative designs and reliable quality. Contact Segimed today for detailed product catalogs and technical materials, and experience the surgical safety upgrade brought by professional-grade products!