Місця та орієнтири для декомпресії за допомогою голки: 2-й ICS проти 5-го ICS для покупців наборів для надання допомоги при травмах

For years, many responders learned needle decompression as a single anterior landmark: the second intercostal space at the midclavicular line. Current field references and medical-director protocols may also cite a lateral landmark at the fourth or fifth intercostal space near the anterior axillary line. That shift creates a practical problem for buyers: the device can be physically acceptable while the label, IFU, training card, or kit insert points to the wrong site.

Written for procurement teams, EMS and tactical kit builders, distributors, and training organizations reviewing chest decompression needle documentation. It is not clinical instruction and must not be used to perform needle decompression. Field use, side selection, repeat decompression, and operator authorization belong to the customer’s current protocol and medical director.

Quick Facts for Buyers

The Two Site Names Buyers Keep Seeing

Two site names appear again and again in RFQs, training slides, product descriptions, and tenders:

• 2nd ICS MCL: second intercostal space at or near the midclavicular line.
• 4th or 5th ICS AAL: fourth or fifth intercostal space at or near the anterior axillary line.

For a clinician, those phrases sit inside a training pathway. For a buyer, they are documentation labels that must match the program’s approved wording. Do not let the abbreviations hide the risk. MCL, AAL, ICS, “anterior,” and “lateral” are not cosmetic terms. They tell the operator which site the program expects, and they tell the buyer what the IFU, label, diagram, and insert must say.

That is the first procurement trap: a supplier can ship an acceptable NCD while the paperwork still fails the program.

Why the 5th ICS AAL Site Gained Ground

The lateral site gained attention because anterior placement can drift too medial under stress. The Defense Health Board’s CoTCCC recommendation review reported that medics frequently placed anterior needle decompressions medial to the intended midclavicular line, increasing risk near central structures. The same report recommended that the fourth or fifth intercostal space at the anterior axillary line be accepted as an alternate site.

StatPearls’ 2025 tension pneumothorax review also describes the fifth intercostal space at the anterior axillary line as preferred when time permits, because the site may offer higher success and fewer complications. That is useful context for buyers, but it is not a license to print “5th ICS only” on every insert.

For kit builders, the lateral-site discussion shows up in practical details:

• Training cards may need to show both anterior and lateral protocol wording.
• Product labels should avoid implying one universal insertion site.
• Landmark diagrams should be reviewed by a qualified medical reviewer before publication or printing.
• The NCD must have adult protocol-level reach, not a short IV cannula repackaged as a decompression needle.

Key takeaway: 5th ICS AAL is a serious protocol option. Treat it as a documentation and review requirement, not as a marketing phrase.

Why the 2nd ICS MCL Site Still Appears in Protocols

The anterior site is not obsolete just because lateral placement appears in newer discussions. It has been taught for decades, appears in many references, and may still be named directly in a customer’s protocol.

That matters in tenders. If an agency’s protocol says 2nd ICS MCL, the buyer may reject a kit insert that only illustrates 5th ICS AAL. If a training organization teaches both, it may reject a one-site card even when the physical needle is acceptable. If a distributor sells into multiple jurisdictions, it may need neutral wording that tells customers to follow local medical direction instead of hard-coding one clinical decision into packaging.

The buyer’s job is not to pick a winning site from an article. The buyer’s job is to make the device, IFU, label, training insert, and protocol point in the same direction.

The Landmark-Protocol Gap

We call the procurement failure here the Landmark-Protocol Gap: the space between the anatomical landmark printed on a product insert and the site named in the buyer’s actual medical protocol.

That gap creates three kinds of problems.

First, training friction. The responder learns one landmark in class and sees another on the kit card. That slows recognition under stress.

Second, audit friction. Tender reviewers and medical directors may treat mismatched wording as a documentation failure before they even evaluate the sample device.

Third, sourcing drift. A buyer searches “needle decompression site,” finds multiple site names, and lets the supplier choose the wording. That is backwards. The protocol chooses the wording; the supplier supports it.

The fix is simple enough to put in an RFQ:

1. Name the protocol family or medical-director requirement.
2. State whether the kit insert should reference the 2nd ICS MCL, the 4th/5th ICS AAL, both, or neutral “follow protocol” wording.
3. Require the current IFU, product label, and packaging sample before production.
4. Require clinical review of any landmark diagram before publication or printing.

If a supplier cannot separate product specification from clinical instruction, pause the order.

The Chest-Wall Reach Problem

The point is simple. A needle decompression device must cross skin, soft tissue, and the chest wall before the catheter can do its job. Site choice may affect that distance, but device length still has to support the protocol and patient population.

Health.mil’s TCCC/DHB recommendation review states that catheter length is a variable in successful needle decompression, that a 5 cm needle may be too short to reliably reach the pleural space, and that current TCCC guidance at the time recommended an 8 cm needle. The same document recommended continued use of a 14G, 3.25 in / 8 cm catheter at the second ICS MCL or the fourth or fifth ICS AAL. StatPearls similarly recommends long angiocatheters to overcome chest-wall thickness.

For procurement, that becomes a product-specification checklist.

For Rusun TacMed orders, include the required protocol wording in the RFQ. The team can quote the NCD configuration, packaging, and documentation set against that requirement instead of forcing every protocol into one generic label.

Before You Standardize a Site in a Kit

Do not standardize a site from a blog article. Standardize the documentation package around the medical direction that already governs the user.

Before ordering printed inserts, training cards, or private-label packaging, ask these questions:

1. Which protocol or medical director wording controls the kit?
2. Does the customer want 2nd ICS MCL, 4th/5th ICS AAL, both, or neutral “follow protocol” wording?
3. Does the IFU mention a site or only describe the product?
4. Will the landmark diagram be reviewed by a qualified clinical advisor before printing?
5. Does the NCD spec sheet clearly state usable length, bore, catheter material, sterility method, shelf life, storage, and lot coding?
6. Will the same packaging be sold into multiple jurisdictions with different protocols?

The expensive error is not choosing 2nd or 5th. The expensive error is printing the wrong one at volume.

How to Review a Landmark Diagram Before It Goes Into a Kit

Many suppliers treat the diagram as decoration. It is not decoration. It is clinical-adjacent material, and it should be reviewed like an IFU component.

Use this five-point screen before a diagram goes into packaging, a product page, or a training card:

7. The diagram names the protocol source or states “follow local medical direction.”
8. It does not present one site as universal when the customer teaches more than one.
9. It avoids step-by-step procedural detail unless it is part of a reviewed IFU.
10. It is clear enough for the intended audience but not a substitute for training.
11. It has been reviewed by the program’s medical director, clinical advisor, or authorized training lead.

A clean diagram can reduce confusion. An unreviewed diagram can create liability.

For export buyers, the risk is wider than medical accuracy. Translation errors can turn “anterior axillary line” into vague underarm wording. Cropped illustrations can shift landmarks. Reused stock anatomy can show the wrong body position. These are not design mistakes; they are product-documentation defects.

When to Specify 2nd ICS, 5th ICS, or Both

The following table does not choose a clinical site. It tells buyers how to package documentation once the controlling protocol is known.

[H2] How This Connects to Chest Seals and the MARCH Kit

Needle decompression does not sit alone in the kit. It belongs in the respiration part of the MARCH sequence, beside chest seals and airway items.

That architecture matters. A vented chest seal manages a penetrating chest wound by sealing the wound and allowing air to escape through the seal design. A decompression needle is a different line item for suspected tension physiology under protocol. Buyers often source both in the same R-category restock, but the documentation burden is not the same. Chest seals are easier to describe as equipment. NCDs require tighter clinical boundaries.

For internal linking, the best reader path is:

• Learn the MARCH context on the existing TCCC article.
• Compare NCDs with chest tubes in the first NCD blog after it is published.
• Use this site-and-landmark article to align training language.
• Move to the NCD product pillar once the product page is published.
• Finish on the quote page when the protocol and documentation requirements are clear.

Also add one contextual link from the existing chest seal page after publication, because chest seals and decompression needles are commonly reviewed together in the respiration category.

Поширені запитання

Які існують основні ділянки для проведення голкової декомпресії?

The two commonly cited sites are the second intercostal space at the midclavicular line and the fourth or fifth intercostal space at the anterior axillary line. Which one is used is a protocol and training decision, not a catalog decision. Buyers should check the program’s medical-director wording before approving labels or kit inserts.

Чи 5-й ICS AAL кращий за 2-й ICS MCL?

Some references favor or allow the lateral site because it may reduce certain anterior-placement problems and can be easier to access in some field conditions. That does not make it universal. If your protocol names the 2nd ICS MCL, buy and label against that protocol. If it names 5th ICS AAL, make sure the IFU and training card reflect that.

Що таке проблема обмеженої рухливості грудної клітки?

Саме це питання щодо закупівлі лежить в основі багатьох дискусій на робочих майданчиках: катетер повинен бути достатньо довгим, щоб досягти необхідної ділянки для конкретної групи пацієнтів та відповідно до протоколу. Короткі канюлі для внутрішньовенних ін’єкцій не слід розглядати як рівноцінні замінники голок для декомпресії грудної клітки у дорослих.

Чи слід на сторінці товару NCD розміщувати схему монтажу?

Only if the diagram is clinically reviewed and clearly framed as protocol-dependent. A product page can show product components, packaging, and documentation. A landmark diagram crosses into clinical-adjacent territory and should be approved by a qualified reviewer before publication.

На яку довжину голки слід звернути увагу покупцям?

For adult trauma programs, verify the usable catheter length against the customer’s protocol. Health.mil’s TCCC/DHB recommendation supports a 14G, 3.25 in / 8 cm catheter, and StatPearls recommends long angiocatheters to overcome chest-wall thickness. Short IV cannulas should not be treated as equivalent substitutes.

Чи може один і той самий комплект NCD підтримувати як 2-й, так і 5-й протоколи ICS?

The physical NCD may be the same, but the documentation may not be. If the kit is sold across multiple protocol environments, keep the product label neutral and provide customer-approved inserts where needed. Do not print a one-site instruction card for every buyer.

Does Rusun TacMed decide which site a customer should use?

No. Rusun TacMed supplies the NCD device and procurement documentation. Site selection, operator authorization, and clinical use belong to the customer’s protocol, medical director, and training system. The RFQ should name the required wording so packaging and IFU materials can be checked before production.

Next Step

Send the NCD protocol wording you need supported, including whether your kit insert should mention the 2nd ICS MCL, the 4th/5th ICS AAL, both, or neutral “follow protocol” wording. Rusun TacMed can then quote the 14G x 8 cm NCD, packaging, and documentation set against those requirements.

Request the spec sheet and bulk pricing.

• Rusun TacMed Technical Supply Desk

Про цей посібник

Reviewed by the Rusun TacMed Technical Supply Desk. Rusun TacMed supplies the product side of this topic—a 14G x 8 cm catheter-over-needle chest decompression needle with a protective case—and does not provide clinical authorization or procedure training. Clinical statements are drawn from public medical references and are provided for procurement context only. Protocol questions belong with the program’s medical director. Last updated: 2026-07-03.

Посилання та джерела

1. Committee on Tactical Combat Casualty Care Guidelines – Joint Trauma System
2. Needle Decompression of Tension Pneumothorax: Tactical Combat Casualty Care Guideline Recommendations – Defense Health Board / Health.mil
3. Tension Pneumothorax – StatPearls, NCBI Bookshelf
4. What Is TCCC? Tactical Combat Casualty Care Explained – Rusun TacMed
5. Chest Seal – Rusun TacMed