Acoustic flashbang, phello ea kinetic, le thuso ea pele ea likotsi tsa letšoele¶

Nakong ea merusu ea sechaba, lipontšo tsa sechaba, kapa ts'ebetso ea ts'ebetso ea ho qhala batho ba molao, ba shebelletseng, baqolotsi ba litaba, lingaka le baahi ba ka pepesehela libetsa tse laolang bongata (tseo hangata li hlalosoang ke mekhatlo ea bongaka le ea litokelo tsa botho e le "libetsa tse kotsi haholo"). Lisebelisoa tsena li kenyelletsa kinetic impact projectiles (KIPs) tse kang likulo tsa rabara, foam baton rounds, beanbag rounds, le liqhomane tsa seponche; liqhomane tse phatlohang tsa pyrotechnic (li-flashbangs) le liqhomane tsa concussion; ** lisebelisoa tsa acoustic tsa nako e telele (LRADs / likanono tsa molumo) ; le ** li-irritants tsa lik'hemik'hale (khase ea ho taboha / CS, pepere spray / OC, le libolo tsa pepere).

Leha ho na le poleloana e reng "e sa bolaeeng," liphuputso tsa bongaka tse hlahlobiloeng ke lithaka tse phatlalalitsoeng ho BMJ le The New England Journal of Medicine li bontša hore li-kinetic impact projectiles le lisebelisoa tsa pyrotechnic stun li baka likotsi tse tebileng, tse sokelang bophelo haufi-ufi: ho phatloha ha mahlo a bulehileng, ho robeha ha lehata le tepeletseng maikutlo, ho tsoa mali ka har'a sefuba kapa ka mpeng. ho phatloha ho feteletseng, le ho chesa ho tebileng ha tšepe-oxide ea tšepe. Ho tseba ho ntša motho ea lemetseng moleng oa mollo, ho sireletsa thaka ea leihlo e phatlohileng ntle le ho hatella, ho phekola ho cha ha flashbang blast kapa ho phatloha ha tsebe, le ho ntša lintho tse lutlang lik’hemik’hale ka tsela e sireletsehileng ho thibela kholofalo ea ka ho sa feleng ’me ho pholosa bophelo.

Etsa sena hona joale¶

1. Tlosa motho ea lemetseng ka thōko ho moleng oa mollo 'me u phahamise hang hang: Pele u leka ho hlokomela maqeba ka botlalo, tataisa kapa u jare motho ea lemetseng ka thoko ho phasejeng ea seterata ka mor'a sekoahelo se thata (joalo ka sekhutlo sa moaho oa konkreite kapa lerako la masonry) le holima / hloa hole le maru a matla a khase, a tebang mamating a tlase le litepising tsa ka tlas'a lefatše.
2. Letsa nomoro ea hau ea tšohanyetso ea lehae hang-hang bakeng sa mathata a hlooho, sefuba, molala, kapa mahlo: Letsetsa 911 United States le Canada, 112 ho pholletsa le European Union, 999 United Kingdom, kapa 000 Australia. Rubber kapa mokotlana oa linaoa o pota-potileng hlooho, molala kapa sefuba o ka baka ho tsoa mali ka mpeng, ho putlama ha moea, kapa ho tšoaroa ke pelo (commotio cordis) leha letlalo la ka ntle le sa robeha. Bona rona lenane la dinomoro tsa tshohanyetso.
3. Le ka mohla u se ke ua tšoara, ua hatella, kapa ua tlotsa leihlo le otlileng ke projectile kapa ho phatloha: Haeba kulo, paintball/pepperball, kapa sekotoana sa flashbang se otla leihlo kapa orbit, U SE KE UA kenya khatello e tobileng leihlo 'me U SE KE UA Leka ho ntša likhechana tse khomaretseng. Koahela leihlo le lemetseng ka lesela le thata la leihlo le sireletsang holim'a letlapa le hloekileng (joalo ka lesela le hloekileng la lesela le hloekileng). bony brow le cheek) le ho koahela leihlo le sa tsoa kotsi hammoho le ho emisa motsamao oa mahlo a nang le kutloelo-bohloko nakong ea lipalangoang tsa sepetlele.
4. Le ka mohla u se ke ua raha, ua thonaka, kapa ua tšela metsi holim'a flashbang e tsubang kapa sekoti sa khase e tabolang: Liqhomane tsa Pyrotechnic le ligase tse tabolang tsa mofuta oa sesole li chesa litefiso tse ka hare tsa magnesium kapa aluminium-perchlorate ka *1,000 ho isa ho 2,700 degrees Celsius (1,800 ho isa ho 4,900 degrees Celsius) e kgaola menoana kapa maoto. Tloha hang-hang; haeba liaparo li ka tšoara mollo, **Emisa, Lahlela, 'me U Roll ** kapa li tima malakabe ka jase e boima, ebe letlalo le pholileng le chesa ka metsi a phallang metsotso e 20.
5. Blosa metsi, sesepa, le menoana HO TSOA ha tsebe e tsoang mali kapa e llang ka mor'a ho phatloha ho hoholo: Haeba seqhomane se phatlohang haufi le hlooho ea motho e mong, shockwave ea 170-to-180-decibel hangata e phatlola eardrum (tympanic membrane). Le ka mohla u se ke ua kenya marotholi, metsi, kapa li-swabs tsa k'hothone ka har'a kanale ea tsebe. Ka bonolo, beha lesela le omeletseng le sa hloekang holim'a tsebe e ka ntle ho tšoara mali kapa lero le hlakileng 'me u batle thuso ea bongaka hanghang.
6. Tlosa segase sa likhapha kapa pepere ka metsi a batang feela kapa letsoai (tlola lebese le li-antacids maqebeng a bulehileng): Tsamaea moeeng o hloekileng, o tšetlehe pele e le hore metsi a se ke a fihla mahlong kapa ka mpeng, 'me u phunye mahlo ho tloha hukung e ka hare (haufi le nko) ho ea ka ntle u sebelisa molapo o phoroselang oa *metsi a tloaelehileng a nooang a hloekileng kapa a hloekile. Le ka mohla u se ke ua tšela lebese, shampoo ea lesea, kapa antacid e metsi ka leihlong le nang le leqeba, lekhopho kapa leqeba la projectile.

flowchart TD
    A["Kotsi ea Bongata ba Phatlalatso ea Hlaha"] --> B["Tsamaisa mahlatsipa ka thōko ka mor'a sekoahelo se thata 'me u nyolohele sebakeng se sireletsehileng"]
    B --> C{"Mokhoa oa mantlha oa kotsi ke ofe?"}
    C -->|"Kinetic Projectile Impact (Rubber Bullet, Beanbag, Sponge Round)"| D{"Ke sebaka sefe sa 'mele se ileng sa otloa?"}
    C -->|"Flashbang / Pyrotechnic Blast kapa Acoustic LRAD"| E{"A na ho na le ho chesa ha mocheso, ho tsoa mali litsebeng, kapa likotoana?"}
    C -->|"Chemical Irritant Feela (Tear Gas CS / Pepper Spray OC)"| F["Hlobola bokantle bo silafetseng, o panya ka moea o mocha, 'me u sutumelle mahlo ka ntle ho ea ka ntle ka metsi a hlakileng kapa a saline."]
    D -->|"Hlooho, Molala, Sefuba kapa Mpa"| G["Letsetsa litšebeletso tsa tšohanyetso hang-hang: hlokomela tsela ea moea / phefumoloho 'me u shebelle ho tsoa mali ka hare kapa ho ferekana"]
    D -->|"Leihlo kapa Orbit"| H["ZERO pressure on eye: theipi thebe e thata ya kopi ya pampiri hodima sokete ya marapo ebe o kwahela mahlo ka bobedi"]
    D -->|"Limb Laceration kapa Embedded Round"| I["Laola ho tsoa ha mali ka selikalikoe se tiileng/khatello e tobileng ntle le ho sutumelletsa projectile e kentsoeng botebong ba eona"]
    E -->|"Thermal Burn ho tloha ho Canister kapa Flash"| J["Ho chesa ka metsi a hloekileng ka metsotso e 20, 'me u koahele ka mokhoa o hlephileng ka sekoahelo se sa hloekang kapa seaparo se sa thupeng."]
    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.
• Screen for Intracranial Bleeds: Anyone struck in the head who loses consciousness (even for 3 seconds), vomits, becomes confused, develops unequal pupils, has clear fluid or blood dripping from the nose or ears, or experiences a worsening headache requires immediate emergency room CT imaging. See our head injuries guide.

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

• Le ka mohla u se ke ua ntša likulo tse kentsoeng tsa rabara kapa mokotla oa linaoa: Libakeng tse ka tlase ho limithara tse 15 (maoto a 50), liponche tsa liponche tsa 40-millimeters le mekotla ea linaoa tse nang le loto ea 12-gauge hangata li phunya letlalong ebe li lula ka har'a lebota la sefuba, mpeng kapa serope. Tšoara projectile e kentsoeng hantle joalo ka lehare la thipa e khokhothetsoeng: ho e hula seterateng ho ka ntša mothapo o tabohileng. E tlohele sebakeng sa eona, paka gauze e hloekileng ho pota-pota mathōko ho e tsitsisa, 'me u e ise ngakeng ea khatello ea maikutlo. (Tlhokomeliso bakeng sa lingaka tsa ER: 12-gauge beanbag rounds e na le **leto ea linonyana ** e ka phatlohang e bulehile ka har'a leqeba, e hlokang tiiso ea X-ray ea hore li-pellets tsohle tsa loto le masela a masela a tlosoa ka opereishene.)
• Hlokomela ho Liehisa ho Tsoela Mali ka Hare ho Liehile (Lebete, Sebete le Matšoafo): Motho ea otloang likhopong tse ka tlaase kapa mpeng ke molamu hangata o tsamaea a nahana hore o na le leqeba le lebe le pherese, ebe o oa ka mor'a lihora tse 2 ha a le hae ka lebaka la **lebete le phatlohileng, sebete se robehileng, kapa tension pneumothops (*collaps) Batla tlhahlobo e potlakileng ea sepetlele ka mor'a tšusumetso leha e le efe ea 'mele haeba motho a e-ba le phefumoloho e khutšoanyane, bohloko bo bohale ha a phefumoloha haholo, bohloko bo phallang ho ea fihla ntlheng ea lehetla le letšehali (Letšoao la Kehr la mali le halefisang diaphragm ho tloha spleen e phatlohileng), letlalo la clammy, ho tsekela ha u ema, kapa motho ea thata.

Mohato oa 2: Ho phekola Flashbang (Stun Grenade) le likotsi tsa Acoustic Blast¶

flashbang (stun grenade) ke seqhomane se neng se etselitsoe batho ba phaposing ea pholoso ea masole, eseng matšoele a bulehileng literateng. Leha ho le joalo ha e kenngoa ka har'a matšoele a teteaneng, flashbang e phatloha ka ho tsieleha ho feteletseng ho 170 ho ea ho 185 decibel (e fetang makhetlo a 1,000 ho feta moeli oa khatello ea acoustic e senyang likarolo tsa litsebe tsa motho), e foufatsang 6-to-8-million-candela light flashtense, le magnesium powder

1. Kotsi e ka sehloohong ea ho phatloha: Li-Eardrums tse Ruptured (Tympanic Membrane Perforation) le Blast Concussion¶

Ha seqhomane sa flashbang kapa concussion grenade se phatloha ka har'a limithara tse 1 ho isa ho tse 5 ho tloha ho motho, leqhubu la ho phatloha ho matla le otla lehata le kanale ea tsebe e kantle:

• ** Matšoao a Eardrum e Senyehileng **: Bohloko bo bohloko ba tsebe ka tšohanyetso nakong ea ho phatloha ho lateloa ke kutlo e sa utloahaleng hang-hang kapa ho se utloe litsebeng ka lehlakoreng leo, lerata le lerata kapa molumo o phahameng oa molumo (**tinnitus **), ho tsekela ho matla (vertigo ** le tahlehelo ea ho leka-lekana ho tloha ka hare ho tsebe ea tsebe), le ho tsieleha ha metsi a ka hare-ea tsebe), le ho tsieleha ha metsi a semicircular / pipa e hlakileng. kanane ea tsebe.
• Melao e thata ea Thuso ea Pele bakeng sa Trauma ea Blast Ear:
  1. Tlosa tsebe e Omme ka liperesente tse 100: Le ka mohla u se ke ua hlatsoa tsebe e lemetseng ka metsi, saline, kapa sehlatso sa mahlo ha u hlatsoa mosi o tabolang. Haeba motho a e-na le moropa oa tsebe o phunyehileng ka lebaka la flashbang ’me motho e mong a tšela metsi a silafetseng a hlatsuoang a khase ho theosa le kanaleng ea tsebe ea hae, libaktheria le likristale tsa lik’hemik’hale tsa CS li kena sebakeng sa tsebe e bohareng ka ho toba, li baka mafu a matla a tsebe e bohareng (otitis media) le bohloko bo matla.
  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.

Lipotso tse botsoang khafetsa¶

Mehloli e hlahlobiloe¶

• 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.

Litataiso tse amanang¶

• Merusu ea lehae
• Letšoele le pshatla le ho phonyoha
• Dikotsi tsa mahlo
• Maqeba a hlooho