Akustiki fleşbang, kinetiki täsir we märekäniň dargamak şikesleri ilkinji kömek¶

During civil disturbances, public demonstrations, or law enforcement crowd dispersal operations, bystanders, journalists, medics, and residents can be exposed to a spectrum of crowd control weapons (often classified by medical and human rights bodies as "less-lethal weapons"). These devices include kinetic impact projectiles (KIPs) such as rubber bullets, foam baton rounds, beanbag rounds, and sponge grenades; explosive pyrotechnic stun grenades (flashbangs) and concussion grenades; long-range acoustic devices (LRADs / sound cannons); and chemical irritants (tear gas / CS, pepper spray / OC, and pepper balls).

Despite the term "less-lethal," peer-reviewed medical studies published in the BMJ and The New England Journal of Medicine demonstrate that kinetic impact projectiles and pyrotechnic stun devices cause severe, life-threatening injuries at close range: open globe eye ruptures, depressed skull fractures, internal thoracic or abdominal bleeding, tympanic membrane (eardrum) perforation from acoustic blast overpressure, and deep thermal metal-oxide burns. Knowing how to extract an injured person out of the line of fire, shield a ruptured eyeball without applying pressure, treat a flashbang blast burn or eardrum rupture, and flush chemical irritants safely prevents permanent disability and saves lives.

Indi et¶

1. Move the injured person laterally out of the line of fire and upwind immediately: Before attempting detailed wound care, guide or carry the injured person sideways out of the street corridor behind solid hard cover (such as a concrete building corner or masonry wall) and upwind / uphill away from heavy tear gas clouds, which sink into low doorways and subway stairs.
2. Call your local emergency number immediately for head, chest, neck, or eye impacts: Dial 911 in the United States and Canada, 112 across the European Union, 999 in the United Kingdom, or 000 in Australia. A rubber bullet or beanbag round striking the head, neck, or chest can cause fatal intracranial bleeding, airway collapse, or cardiac arrest (commotio cordis) even if the outer skin is not broken. See our gyssagly kömek belgileri.
3. Never touch, press, or rub an eye struck by a projectile or blast: If a rubber bullet, paintball/pepper ball, or flashbang fragment hits the eye or orbit, do NOT apply direct pressure to the eye and do NOT try to pull out stuck fragments. Cover the injured eye with a rigid protective dome (such as a metal eye shield or the bottom of a clean paper cup taped over the bony brow and cheek) and cover the uninjured eye as well to stop sympathetic eye movement during hospital transport.
4. Never kick, pick up, or pour water on a smoking flashbang or tear gas canister: Pyrotechnic stun grenades and military-style tear gas canisters burn internal magnesium or aluminum-perchlorate charges at 1,000 to 2,700 degrees Celsius (1,800 to 4,900 degrees Fahrenheit) and can detonate a secondary blast that amputates fingers or feet. Step away immediately; if clothing catches fire, Stop, Drop, and Roll or smother flames with a heavy coat, then cool skin burns with running water for 20 minutes.
5. Keep water, soap, and fingers OUT of a bleeding or ringing ear after a flashbang blast: If a stun grenade explodes near someone's head, the 170-to-180-decibel shockwave frequently ruptures the eardrum (tympanic membrane). Never put drops, water, or cotton swabs into the ear canal. Gently place a loose, dry sterile gauze pad over the outer ear to catch blood or clear fluid and seek urgent medical care.
6. Decontaminate tear gas or pepper spray with plain cold water or saline (skip milk and antacids on open wounds): Move to fresh air, lean forward so runoff does not wash down into the eyes or groin, and flush eyes from the inner corner (near the nose) outward using a brisk stream of sterile normal saline or clean cold drinking water. Never pour milk, baby shampoo, or liquid antacid into an eye that also has a cut, abrasion, or projectile injury.

flowchart TD
    A["Crowd Dispersal Injury Occurs"] --> B["Move casualty laterally behind hard cover and upwind to a safe zone"]
    B --> C{"What is the primary injury mechanism?"}
    C -->|"Kinetic Projectile Impact (Rubber Bullet, Beanbag, Sponge Round)"| D{"Which body region was struck?"}
    C -->|"Flashbang / Pyrotechnic Blast or Acoustic LRAD"| E{"Is there thermal burning, ear bleeding, or shrapnel?"}
    C -->|"Chemical Irritant Only (Tear Gas CS / Pepper Spray OC)"| F["Strip contaminated outer layer, blink in fresh wind, and flush eyes inner-to-outer with plain water or saline"]
    D -->|"Head, Neck, Chest, or Abdomen"| G["Call emergency services immediately: monitor airway/breathing and watch for internal bleeding or concussion"]
    D -->|"Eye or Orbit"| H["ZERO pressure on eye: tape a rigid paper cup shield over bony socket and cover both eyes"]
    D -->|"Limb Laceration or Embedded Round"| I["Control bleeding with firm ring/direct pressure without pushing embedded projectile deeper"]
    E -->|"Thermal Burn from Canister or Flash"| J["Cool burn with clean running water for 20 minutes and cover loosely with sterile cling wrap or non-stick dressing"]
    E -->|"Ruptured Eardrum (Deafness, Ringing, Ear Bleeding)"| K["Keep ear canal 100% dry (no drops or water), cover outer ear loosely with dry gauze, and check for concussion"]

Triage matrix: crowd dispersal weapons and specific injury patterns¶

Understanding the physical mechanism of each crowd dispersal device allows first responders and bystanders to look for hidden internal injuries that are easy to miss in a chaotic street environment.

Step 1: Treating Kinetic Impact Projectile (Rubber Bullet & Beanbag) injuries¶

A widespread myth is that "rubber bullets" are made of soft, bouncy rubber like a child's toy ball. In reality, many kinetic impact projectiles consist of a solid steel, lead, or aluminum core coated in a thin 2-millimeter layer of hard vulcanized rubber or dense polyurethane foam, while 12-gauge "beanbag" rounds consist of a Kevlar fabric pillow packed with 40 grams (1.4 ounces) of #9 lead birdshot fired from a shotgun at 70 to 90 meters per second (230 to 300 feet per second).

When fired from short range, or when a projectile ricochets off asphalt pavement and tumbles edge-on into a bystander, the concentrated kinetic energy slices straight through skin, shatters bone, and embeds the projectile (along with dirty fabric from the victim's clothing) deep inside muscle or body cavities.

1. Ocular trauma: when a projectile or pepper ball hits the eye¶

Medical reviews show that eye impacts from kinetic projectiles carry one of the highest rates of permanent disability in crowd dispersal settings, frequently rupturing the eyeball (open globe injury), detaching the retina, or filling the anterior chamber with blood (traumatic hyphema).

Immediate eye trauma protocol: - Recognize an Open Globe Injury: Look (without touching or pulling on the eyelids) for a teardrop-shaped or irregular pupil, blood pooling inside the colored iris (hyphema), dark jelly-like tissue protruding from the white of the eye, a flattened or collapsed appearance of the eyeball, or sudden loss of vision ("everything went black or red"). - Apply ZERO pressure to the eyeball: Never press a gauze pad against a struck eye, and never pour high-pressure water or homemade antacid mixtures into an eye that has suffered blunt impact. Pressing on a lacerated eyeball squeezes the vitreous humor out of the eye, causing irreversible blindness. - Construct an improvised rigid eye shield: If you do not have a military aluminum Fox Eye Shield, take a clean disposable paper or foam drinking cup, cut or tear the bottom half off so it is 4 centimeters (1.5 inches) tall, and tape the rim of the cup over the bony brow ridge above the eye and the bony cheekbone below the eye so nothing touches the eyelid or eyeball itself. - Cover the uninjured eye too (Bilateral Patching): Human eyes are neurologically yoked together (consensual conjugate eye movement): every time your good left eye darts around to look at paramedics or streetlights, your injured right eye moves identically inside its socket, grinding fractured orbital bone or tearing retinal tissue. Gently covering the good eye with gauze calms both eyes while you guide the person by the arm to an ambulance. - Position upright at 30 to 45 degrees: Keep the patient sitting upright (never lying flat and never bending their head down) and instruct them not to cough, blow their nose, or strain, which spikes intraocular pressure. See our detailed eye injuries first aid guide.

2. Head, neck, and facial impacts¶

A 40-millimeter foam baton or rubber bullet striking the forehead, temple, jaw, or neck delivers enough blunt force to fracture the skull, crush the larynx (voicebox), or dissect the carotid artery.

• Airway first on neck hits: A projectile striking the front of the throat can fracture the thyroid or cricoid cartilage, causing rapid internal swelling that blocks the airway within 10 to 20 minutes. If someone struck in the neck develops a hoarse voice, difficulty swallowing saliva, noisy high-pitched breathing (stridor), or bubbling/crunching under the skin of the neck (subcutaneous emphysema), call emergency services immediately and keep them sitting upright leaning slightly forward.
• ** Intrakranial gan akma üçin ekran **: Huşuny ýitiren (hatda 3 sekuntda) kellä urlan, gusýan, bulaşýan, deň bolmadyk okuwçylary ösdürip ýetişdirýän, burnundan ýa-da gulaklaryndan arassa suwuklyk ýa-da gan damýan ýa-da agyrlaşýan kelle agyryny başdan geçirýän, gyssagly kömek otagynyň KT suratyny talap edýär. Bize serediň kelle şikesleri boýunça gollanma.

3. Chest and abdominal blunt trauma (and embedded projectiles)¶

• Never pull out an embedded rubber bullet or beanbag round: At ranges under 15 meters (50 feet), 40-millimeter sponge rounds and 12-gauge lead-shot beanbags regularly punch right through the skin and lodge inside the chest wall, abdomen, or thigh. Treat an embedded projectile exactly like an impaled knife blade: pulling it out in the street can uncork a torn artery. Leave it in place, pack clean gauze around the edges to stabilize it, and transport to a trauma surgeon. (Note for ER doctors: 12-gauge beanbag rounds contain lead birdshot that can rupture open inside the wound, requiring X-ray confirmation that all lead pellets and fabric wadding are surgically removed.)
• Watch for Delayed Internal Bleeding (Spleen, Liver, and Lung): A person struck in the lower ribs or stomach by a baton round often walks away thinking they only have a nasty purple bruise, only to collapse 2 hours later at home from a ruptured spleen, lacerated liver, or tension pneumothorax (collapsed lung). Seek urgent hospital evaluation after any torso impact if the person develops shortness of breath, sharp pain when taking a deep breath, pain radiating to the tip of the left shoulder (Kehr's sign of blood irritating the diaphragm from a ruptured spleen), pale clammy skin, dizziness when standing up, or a rigid, tender abdomen.

Step 2: Treating Flashbang (Stun Grenade) and Acoustic Blast injuries¶

A flashbang (stun grenade) is an explosive device originally designed for military hostage-rescue room entries, not open street crowds. Yet when deployed into dense crowds, a flashbang detonates with an overpressure shockwave of 170 to 185 decibels (more than 1,000 times the acoustic pressure threshold that ruptures human ear structures), a blinding 6-to-8-million-candela light flash, and an intense fireball fuelled by metallic magnesium or aluminum powder.

1. Primary Blast Injury: Ruptured Eardrums (Tympanic Membrane Perforation) and Blast Concussion¶

When a flashbang or concussion grenade detonates within 1 to 5 meters (3 to 16 feet) of a person, the supersonic blast wave slams into the skull and external ear canal:

• Signs of a Ruptured Eardrum: Sudden sharp ear pain at the moment of the blast followed by immediate muffled hearing or deafness on that side, loud roaring or high-pitched ringing (tinnitus), severe spinning dizziness (vertigo and loss of balance from inner-ear semicircular canal shock), and bright red blood or clear/pinkish fluid draining from the ear canal.
• Strict First Aid Rules for Blast Ear Trauma:
  1. Keep the ear canal 100 percent DRY: Never flush a blast-injured ear with water, saline, or eyewash when washing off tear gas. If a person has a perforated eardrum from a flashbang and someone pours contaminated tear-gas wash water down their ear canal, bacteria and CS chemical crystals enter the middle ear space directly, causing severe middle-ear infections (otitis media) and intense pain.
  2. Never plug the inside of a bleeding ear canal tightly: If clear fluid or watery blood is trickling out of the ear after a blast or head strike, it may contain cerebrospinal fluid (CSF) from a basilar skull fracture. Never jam cotton balls or earplugs into a bleeding ear canal. Instead, tape a sterile, dry gauze pad loosely over the outside of the ear so fluids can drain freely onto the pad, and seek emergency medical evaluation. (Most clean blast eardrum perforations heal on their own over 4 to 8 weeks if kept completely dry, while larger tears require an ENT specialist patch or tympanoplasty.)

2. Secondary and Tertiary Flashbang Trauma: Shrapnel and Magnesium Thermal Burns¶

Although stun grenades are designed so the heavy steel top and bottom sub-munitions stay intact while gas vents through side holes, modern lightweight composite/plastic-bodied flashbangs and pyrotechnic smoke grenades frequently shatter upon detonation, propelling razor-sharp fragments of burning plastic, metal pins, and hot chemical slag outward at ballistic speeds:

• Cooling Flashbang and Canister Thermal Burns: If a flashbang detonates against someone's leg, backpack, or coat, or if someone accidentally brushes against a 500-degree-Celsius (932-degree-Fahrenheit) tear gas canister:
  1. Extinguish any burning synthetic clothing immediately (synthetic nylon or polyester jackets melt into hot sticky tar; strip off smoldering outer garments if not melted into the skin).
  2. Gently brush off any loose dry powder residue, then flood the burn with cool, clean running water for a full 20 minutes (never use ice, butter, toothpaste, or baking soda paste on a burn).
  3. Cover the cooled burn loosely with clean plastic kitchen cling film (laid flat, not wrapped tightly around a swelling limb) or a sterile non-stick dressing and go to a hospital burn or emergency unit.

3. Defending against Long-Range Acoustic Devices (LRADs / Sound Cannons)¶

When an LRAD (Long-Range Acoustic Device) activates its high-pitched deterrent tone, it projects a tightly focused beam of 2,000-to-4,000-hertz sound energy at 135 to 162 decibels. Because decibels are measured on a logarithmic scale, every 10-decibel increase multiplies acoustic energy by 10-fold: 150 decibels is 1,000 times more intense than a 120-decibel rock concert or ambulance siren, causing immediate mechanical shearing of the delicate stereocilia hair cells inside the inner ear cochlea within seconds.

Step 3: Safe decontamination of Tear Gas (CS) and Pepper Spray (OC) alongside wounds¶

When a person has both an open physical wound (such as a scrape, laceration, or ruptured eardrum) AND heavy chemical irritant contamination (CS tear gas or OC / PAVA pepper spray), your decontamination technique must avoid poisoning the open wound.

How to flush eyes and skin without spreading chemical crystals downward¶

1. Do NOT rub your eyes: CS tear gas is not actually a gas; it is a fine aerosol cloud of microscopic solid crystalline particles (2-chlorobenzalmalononitrile) with tiny sharp edges. Rubbing your eyes grinds those crystals straight into your cornea, causing painful corneal abrasions.
2. Stand into the wind and blink rapidly: Once out of the smoke cloud, face the clean breeze, hold your arms out from your sides, and blink rapidly so natural tears begin floating the particles out.
3. Flush from the nose outward while leaning forward: Tilt your head forward and sideways (so contaminated wash water drips straight onto the ground rather than running down your neck, chest, and into your groin, where thin skin burns intensely). Pour a steady stream of clean cold water or sterile saline across the open eye starting at the inner corner next to the bridge of the nose and flowing outward across the temple for 5 to 10 minutes.
4. Watch for severe Asthma or COPD bronchospasm: Inhaling CS tear gas or pepper spray triggers violent airway constriction in people with asthma or reactive airway disease. Help them sit upright in fresh air and assist them in using their prescribed albuterol / salbutamol rescue inhaler (2 to 4 puffs via spacer); if wheezing continues or lips turn blue, call emergency medical services immediately.
5. Cold shower at home (before hot): When you get home, strip off your contaminated clothes inside a garage or bathroom into a sealed plastic bag. Step into a stone-cold shower for the first 5 minutes while leaning your head forward so water does not wash hair residue onto your lower body; taking a hot shower first opens skin pores and reactivates trapped CS crystals, causing a fresh full-body burning sensation.

Freygy-ýygydan berilýän soraglar¶

Çeşmeler barlandy¶

• International Committee of the Red Cross (ICRC) and International Federation of Red Cross and Red Crescent Societies (IFRC) (International): First Aid in Armed Conflicts and Other Situations of Violence clinical guidelines for blast injuries, kinetic impact trauma, ocular shielding, and chemical irritant decontamination.
• Physicians for Human Rights (PHR) and International Network of Civil Liberties Organizations (INCLO) (United States / International): Lethal in Disguise: The Health Consequences of Crowd-Control Weapons and BMJ Open systematic review on mortality and morbidity from kinetic impact projectiles, stun grenades, acoustic weapons, and chemical irritants.
• American Academy of Ophthalmology (AAO) (United States): Recognizing and Treating Eye Injuries Among Protestors (open globe rupture shielding, traumatic hyphema management, and avoidance of ocular pressure).
• Centers for Disease Control and Prevention (CDC) and National Institute for Occupational Safety and Health (NIOSH) (United States): Riot Control Agents (CS, CN, and OC) Medical Management Guidelines and Treatments for Blast Injuries: Ear and Blast Overpressure Trauma.
• National Health Service (NHS) and Faculty of Pre-Hospital Care, Royal College of Surgeons of Edinburgh (United Kingdom): Pre-hospital blast barotrauma, tympanic membrane perforation dry-ear protocols, and thermal burn cooling guidelines.
• World Health Organization (WHO) (International): Emergency trauma care guidelines for blunt thoracic, cranial, and ocular trauma.

Degişli gollanmalar¶

• Gra civildan tolgunyşyklary
• Köpçüligiň ezilmegi we diri galmagy
• Göz şikesleri
• Kellede şikes