Ihe mgbawa ọkụ Mortar na-ebugharị ihe ọkụ na Candle Backfire¶

Ndị na-eri ihe na ihe ngosi ** ngwa agha nwere ike ibugharị ikuku (44-millimita / 1.75-inch ahịa bọọlụ na 75-to-150-millimeter / 3-to-6-inch market salute shells), achịcha ikuku dị iche iche, na kandụl Roman ejiri aka ** akaụntụ karịrị ** 10,000 US Admission Department kwa afọ na CP. data), ya na ** aka na mkpịsị aka (pasent 30 ruo 35), isi / ihu / ntị (pasent 22), na anya (pasent 15 ruo 20) na-ebu oke mgbawa mgbawa na ** 1,200-na-2,000-degree-Celsius (2,200-to--3,600-green). Ihe fọrọ nke nta ka ọ bụrụ ọkụ ọkụ ọ bụla na-emerụ ahụ ma ọ bụ ọnwụ sitere na ọnyà pyrotechnic physics anọ a na-egbochi: (1) ** ngwa agha na-ebugharị embers-in-tube mgbawa *** ma ọ bụ ** na-ebuli shei elu **, ebe onye na-arụ ọrụ na-atụba ihe mkpuchi ojii na-ebuli ntụ ntụ na-agbada n'oge na-adịbeghị anya High-Density Polyethylene, tube polyethylene, mortar mortar akwụkwọ na-egbuke egbuke, na-agbapụ shea ahụ 0.5 sekọnd ka e mesịrị mgbe ihu na aka onye ọrụ nọ n'elu mkpuchi ahụ, (2) ** shei "dud" na-aga n'ihu na ọnyà relight **, ebe fuse na-egbu oge na-agbapụ na-adịghị ahụ anya n'ime tube maka nkeji 3 ruo 10 (hangfire) ma na-agba ọkụ ozugbo n'ime okpokoro isi nke onye na-eleba gbọmgbọm ahụ, (3) ** Roman candle cardboard plug-out (backfire) ** mgbe onye ọrụ na-ejide kandụl multi-bọọlụ Roman na aka ha na ụrọ gbawara agbawa na-agbanye ọkụ ** 1,500 C magnesium / strontium kpakpando azụ azụ site n'ọbụ aka ha na nkwojiaka PVC ***, na ọkpọkọ ọkpọkọ (4) . na-akụrisị n'ọkpụkpụ rediolucent (X-ray-adịghị ahụ anya) n'elu mgbawa shei. Ọ bụrụ na ọkụ gbawara mmadụ n'aka, tie anya, ma ọ bụ tie ihu ma ọ bụ obi, kpọọ nọmba mberede nke mpaghara gị ozugbo (911 na United States na Canada, 112 gafee European Union, 999 na United Kingdom, 000 na Australia, 111 na New Zealand) ma ọ bụ lelee akwụkwọ ndekọ aha zuru ụwa ọnụ nke anyị. nọmba mberede. Maka ogbugba ogbunigwe nwere njikọ chiri anya, nbipụ, na ụkpụrụ trauma nke anya, gụọ ntuziaka anyị na ya ọkụ ngwa ngwa tube n'ọnụ-n'elu, shei misfire, na dud imi, mgbawa ọkụ, ọkụ ọkụ, na mmerụ ahụ gbawara, igbupụ ihe nhụsianya: mkpịsị aka, aka, na ichekwa ụkwụ, na mmerụ ahụ anya na ihe nchekwa ụwa mepere emepe.

Mee nke a ugbu a¶

1. ** Ọ bụrụ na ọkụ ọkụ ma ọ bụ ngwa agha kụrie anya, AGHỊGHỊ ite, sachapụ, ma ọ bụ pịa na bọọlụ anya: tepe ọta dome siri ike ma ọ bụ gbutuo akwụkwọ mpempe akwụkwọ n'elu ọkpụkpụ orbital ozugbo:** Mgbawa ọkụ na-eme ka ** ruptures mepere emepe, corneal lacerations, hyphema (ọbara na-ejuputa ihu n'ihu) na blackpocular. Ịpị gauze megide bọọlụ anya nwere akwa na-amanye oghere, iris na vitreous jel site na ọnya ahụ, na-ebute kpuru ìsì na-enweghị ike ịgbanwe. Tee ala nke akwụkwọ dị ọcha ma ọ bụ iko mmanya na-egbu ụfụfụ n'ofe ọkpụkpụ brow na cheekbone ka ọ dịghị ihe ọ bụla metụrụ anya, kpuchie anya ahụ na-emerụghị ahụ iji belata mmegharị ahụ, ma buru ngwa ngwa gaa na Ngalaba Mberede nke nwere mkpuchi ịwa ahụ anya.
2. ** Ọ bụrụ na shei ngwa agha, ọkụ ọkụ (M-80 / salute), ma ọ bụ Roman kandụl na-agbawa n'aka mmadụ, na-achịkwa ọbara ọgbụgba na-eyi ndụ egwu radial/ulnar arterial na nrụgide kpọmkwem ma ọ bụ ihe nlegharị anya windlass forearm/n'elu:* Jiri akwa gauze saline dị mmiri na-ekpo ọkụ were kụchie nkwụ ahụ nke ọma, tinye nrụgide siri ike na akwara nkwojiaka / ogwe aka, ma ọ bụ eriri CoTCCC windlass tourniquet 5 ruo 8 centimita (2 ruo 3 sentimita) n'elu nkwojiaka/ikpere ma ọ bụrụ na ọbara ọgbụgba na-acha ọbara ọbara na-aga n'ihu.
3. Chọta mkpịsị aka niile e bepụrụ ma ọ bụ akụkụ mkpịsị aka, kechie ha na gauze na-adịghị mma nke ejiri saline mee ntakịrị, mechie ha n'ime akpa rọba mmiri na-adịghị mma, tinyekwa akpa ahụ n'elu akwa ice na mmiri (Edokwala anụ ahụ e bepụrụ ozugbo na ice ma ọ bụ ice kpọrọ nkụ):** Ndị microsurgeons nwere ike na-atụgharị ugboro ugboro na-agbawa agbapụ na mkpịsị aka ya na Celsius 4. (ogo Fahrenheit 39)**. Itinye mkpịsị aka na-adịghị ahụ ọkụ ozugbo na ice cubes ma ọ bụ n'ime ịwụ mmiri na-ajụ oyi ma mee ka mkpụrụ ndụ endothelial microvascular, na-ebibi ohere ọ bụla nke ịghagharị.
4. ** Ọ bụrụ na shei ma ọ bụ achicha ikuku anaghị agba ọkụ mgbe ị gbanyechara ọkụ ahụ ("Dud" ma ọ bụ "Misfire"), agaghachila azụ iji nyochaa ya ma ọ bụ gbalịa mee ka ọ dị mkpụmkpụ: chere opekempe 20 ruo 30 nkeji na mita 30 (100-ụkwụ) guzoro: ** Pyrotechnic ntụ ntụ nwere ike ịgbanye ngwa ngwa n'ime ime ụlọ na cosmotch.hangfire) na anwụrụ ọkụ a na-ahụ anya ma ọ bụ na-egbuke egbuke maka nkeji 5 ruo 15 ** tupu ịkụtu ụgwọ ebuli ntụ ntụ ojii na mberede. Debe ndị na-ekiri ihe niile maka ** opekata mpe 20 ruo 30 nkeji, wee bịaruo nso n'akụkụ (anaghị adabere n'akụkụ ahụ ọ bụla n'ọnụ ọnụ nke tube) wee jupụta ụrọ ngwa ngwa site n'ogologo ogwe aka site na iji ** oghere ubi ** tupu ịkwanye shei ahụ na bọket mmiri ** 20-lita (5-galọn) n'abali.
5. If a reloadable mortar tube has just fired a shell, wait at least 10 minutes, shake out any paper debris, or switch to a second cold mortar tube before loading another shell: The number-one cause of reloadable mortar facial blasts is dropping a second shell into a hot tube that still has a smoldering cardboard disk or glowing fuse ember sitting at the bottom. The hot ember ignites the exposed black-powder lift pouch on the bottom of the new shell the instant it slides down the barrel, firing the shell straight into the operator's face and hands before they can pull their arm back.
6. Check the arrow on every reloadable mortar shell (THIS SIDE UP) with a flashlight before loading: If an aerial shell is loaded upside down into the mortar tube (with the time-delay fuse facing up and the black-powder lift charge on top), lighting the fuse ignites the lift charge at the top of the tube, driving the heavy aerial break shell downward into the base of the tube where it detonates at ground level like a fragmentation grenade.

Decision tree: fireworks mortar blast, hand amputation, corneal burn, and dud shell triage¶

flowchart TD
    Start["Fireworks Emergency: Mortar Blast, Roman Candle Backfire, or Misfire"] --> EventType{"1. What emergency has occurred?"}

    EventType -->|"1. HAND BLAST / FINGER AMPUTATION"| HandTrauma["HAND BLAST PROTOCOL: 1. Pack palm wound with moist sterile gauze & apply direct pressure 2. If arterial wrist bleed -> Apply CoTCCC Windlass Tourniquet to forearm/upper arm 3. Recover digits -> Wrap in damp saline gauze -> Seal in dry bag -> Place on ICE-WATER SLURRY"]

    EventType -->|"2. EYE IMPACT OR BLACK POWDER IN EYE"| EyeCheck{"2. Mgbawa ọkụ dị elu ma ọ bụ ntụ elu?"}

    EyeCheck -->|"Explosive Blast or Projectile Impact"| OpenGlobe["OPEN-GLOBE RUPTURE (DO NOT FLUSH OR PRESS): 1. DO NOT rub, rinse, or press gauze on eye 2. Tape Rigid Eye Shield or Paper Cup Bottom over bony orbit 3. Patch UNINJURED eye -> Immediate Ophthalmology ED"]

    EyeCheck -->|"Ash dị elu dị larịị (Intact Globe)"| AshFlush["ALKALINE ASH IRRIGATION: 1. Dụgharịa nku anya nke ọma (na-agbanye naanị na ọkpụkpụ ọkpụkpụ / ntì) 2. Jiri nwayọọ na-agbanye mmiri 0.9% saline ma ọ bụ mmiri dị nro maka 15 min iji sachaa ihe fọdụrụ na alkaline potassium carbonate -> Slit-Lamp Exam"]

    EventType -->|"3. DUD SHELL / MISFIRE IN TUBE"| DudProtocol["20-TO-30-MINUTE HANGFIRE STANDOFF: 1. NEVER look down tube or relight a dud fuse 2. Clear 30 m (100 ft) perimeter and wait 20 to 30 minutes 3. Flood tube from distance with garden hose, then soak shell in 20 L water bucket overnight"]

Deep dive 1: The physics of mortar shell reload explosions, upside-down shells, and dud hangfires¶

Understanding how a reloadable consumer or commercial aerial mortar shell works explains why reloading a hot tube and peering over a misfired tube are the two most lethal actions in pyrotechnics.

1. Inside an Aerial Mortar Shell: Lift Charge vs. Time Fuse vs. Break Charge¶

Every reloadable aerial mortar shell (whether a 44-millimeter consumer canister shell or a 100-millimeter commercial spherical display shell) is a two-stage explosive ordnance device: 1. Stage 1: The Black-Powder Lift Charge (75% KNO3 + 15% Charcoal + 10% Sulfur) at the Base: - Packaged in a thin paper cone or pouch at the very bottom of the shell. When you light the long green visco safety fuse protruding from the top of the mortar tube, the flame burns down the side of the shell to the bottom and ignites the lift charge. - The lift charge deflagrates in 0.02 seconds, generating a high-pressure gas piston inside the closed bottom of the mortar tube that launches the shell 30 to 100 meters (100 to 330 feet) into the sky at 150 to 250 kilometers per hour (95 to 155 miles per hour). 2. Stage 2: The Pyrotechnic Time-Delay Fuse and Flash-Powder Break Charge: - At the exact millisecond the lift charge fires at the bottom of the tube, the hot gases ignite a thick, slow-burning pyrotechnic time-delay fuse (calibrated to burn for 2.5 to 4.0 seconds while the shell climbs to apogee). - Mgbe shei ahụ rutere n'ọnụ ọnụ ụzọ ya, fuse oge rutere n'etiti shea ahụ wee gbawaa ụgwọ mgbawa ọkụ-flash-powder.potassium perchlorate + aluminum/titanium powder***, na-agbawa agba agba kpakpando ọla na-enwu n'èzí na mpaghara 50-mita.

====================================================================================
   THREE LETHAL MORTAR SHELL FAILURE MODES: EMBER RELOAD, UPSIDE-DOWN & HANGFIRE
====================================================================================

   [1] HOT-TUBE EMBER RELOAD BLAST       [2] UPSIDE-DOWN SHELL ("FLOWERPOT")
        (Operator Hand Over Muzzle)          (Lift Charge on TOP, Break on BOTTOM)
               \ (Hand) /                              || Fuse Lit
                \  ||  /                               \/
            +--------------+                    +--------------+
            |   [Shell]    |                    | [Lift Charge]| <-- Fires DOWNWARD
            |      ||      |                    |  [Break Core]| <-- Detonates at
            |      \/      |                    |    (Arrow    |     Ground Level
            | [Lift Pouch] |                    |  Points Down)|     Shredding Tube
            |  * EMBER *   |                    +--------------+
            +--------------+                    ================
          Glowing paper ember at              Shell loaded upside down in dark;
         bottom ignites lift pouch           explodes inside tube 3 sec later.
         instantly upon drop-in.

   [3] THE "HANGFIRE" DUD TRAP (SMOLDERING DELAY FUSE)
         Fuse stops sparkling outside -> Smolders invisibly inside paper casing
         for 3 to 12 minutes -> Fires 150 km/h shell straight into face of
         person leaning over tube. (MANDATORY RULE: Wait 20-30 Min + Hose Soak).
====================================================================================

2. Gịnị mere Reloading a na-adịbeghị anya ọkụ ngwa agha Tube na-efepụ aka na ihu¶

Mgbe ị na-agbapụ shei site na HDPE ma ọ bụ kaadiboodu ngwa agha, ihe na-ebuli ntụ ntụ na-ahapụ n'azụ ** iberibe akwụkwọ kraft na-ese anwụrụ, na-egbuke egbuke na-egbuke egbuke, na diski kaadiboodu na-ekpo ọkụ ** na ala nke gbọmgbọm gbara ọchịchịrị: - Mpempe akwụkwọ ndị ahụ na-enwu nwayọ na 400 ruo 600 degrees Celsius (750 ruo 1,100 degrees Fahrenheit) maka 2 ruo nkeji 8 mgbe ebidochara ya, site na mpempe anwụrụ ọkụ nke tube kwụ ọtọ. - N'ihi na a na-ekechi akpa akpa ojii na ala nke shei na-esote n'ime akwụkwọ anụ ahụ dị mkpa (ọkụ ọkụ ** 280 ruo 300 degrees Celsius / 536 ruo 572 degrees Fahrenheit **), ozugbo onye ọrụ na-ejide shei ọhụrụ n'elu mkpuchi ahụ wee tụba ya na tube, ** ala nke shea ahụ na-adaba na ọkụ ọkụ na-egbuke egbuke. - Instead of the operator having 6 seconds of green-fuse burn time to walk away, the shell fires instantaneously out of the barrel in 0.05 seconds while the operator's fingers are still inside the muzzle and their eye socket and forehead are 30 centimeters (12 inches) above the tube. - How to Prevent Reload Detonations: 1. Never place your face, head, chest, or hands directly over the open mouth of a mortar tube at any time (even when loading an unlit shell). Hold the shell by its top fuse string from the side of the tube at arm's length so that if it fires immediately upon touching the bottom, it shoots harmlessly past your shoulder into the sky. 2. Allow at least 10 minutes of cooling time between shots in the same tube, invert the cold tube to dump out all paper ash, and inspect the bottom with a flashlight before reloading (or buy pre-loaded multi-shot cakes that never require manual reloading).

Deep dive 2: Prehospital trauma care for "Fireworks Blast Hand" and finger amputations¶

When a firecracker, salute, Roman candle backfire, or mortar shell explodes inside or next to a human hand, it produces a signature reconstructive surgical emergency known as "The Fireworks Blast Hand."

1. The Four-Zone Biomechanics of a Closed-Fist Pyrotechnic Blast¶

Hand surgeons classify fireworks hand blasts as a combined high-pressure barotrauma, ballistic shrapnel, and 1,500 C thermal-chemical burn injury: 1. Hyperextension Dislocation and Thumb Carpometacarpal (CMC) Avulsion: - The expanding spherical gas bubble inside the palm forces the thumb and fingers into violent hyperextension and abduction, ripping the thenar muscles (thumb web space) apart, splitting the skin of the palm down to the carpal tunnel, and either dislocating or completely amputating the thumb, index, and middle fingers. 2. Digital Artery Thrombosis vs. Radial/Ulnar Hemorrhage: - While small digital arteries in amputated finger stumps often go into vasospasm initially, partial lacerations of the superficial and deep palmar arches or the radial and ulnar arteries at the wrist bleed profusely, rapidly leading to hemorrhagic shock, especially in children and adolescents. 3. Step-by-Step First Aid for a Mangled Hand and Amputated Digits: - Step 1 (Control Bleeding): Lay the patient flat. Place a thick pad of sterile gauze (moistened with sterile saline or clean water so it does not stick to raw burned tendons) over the palm and wrap firmly with an elastic roller bandage, elevating the hand above heart level. If bright red blood continues soaking through or spurting from the wrist/forearm, apply a CoTCCC windlass tourniquet 5 to 8 centimeters (2 to 3 inches) above the wrist or on the upper arm and twist until bleeding stops completely. - Step 2 (Remove All Rings, Watches, and Bracelets on the Injured Limb Within 60 Seconds): Blast-injured hands and wrists swell to twice their normal diameter within 15 minutes. A wedding band or fashion ring left on a surviving finger acts as a rigid steel tourniquet that causes ischemic gangrene and costs the patient a second finger. Slide or cut all rings and wristwatches off immediately. - Step 3 (Proper "Bag-on-Ice-Water" Preservation of Amputated Fingers): - Search the ground with a flashlight for any amputated fingers, thumb tips, or large bone/skin segments (bring every piece to the hospital; even if a badly crushed index finger cannot be replanted, hand surgeons frequently use its intact skin, nerves, and bone as "spare-parts microsurgical grafts" to save and reconstruct the thumb). - Gently rinse loose dirt off the amputated finger with sterile saline (never scrub it and never soak it in antiseptic, alcohol, or hydrogen peroxide). - Wrap the finger in a piece of sterile gauze lightly moistened with saline, seal it inside a clean, dry zippered plastic bag, and place that sealed bag inside a second container filled with a slurry of half ice and half water (4 C / 39 F). Never let an amputated finger touch ice directly (causes frostbite crystal necrosis) and never submerge it loose in water (causes hypotonic tissue maceration).

====================================================================================
     CORRECT MICROVASCULAR PRESERVATION OF AMPUTATED FINGERS ("BAG-ON-SLURRY")
====================================================================================

                     +---------------------------------------+
                     |     OUTER CONTAINER / COOLER CUP      |
                     |   Filled With 50% Ice + 50% Water     |
                     |          (Maintains 4 C / 39 F)       |
                     |    +-----------------------------+    |
                     |    |  SEALED WATERTIGHT ZIPLOC   |    |
                     |    |  +-----------------------+  |    |
                     |    |  | Amputated Finger/Thumb|  |    |
                     |    |  | Wrapped in Moistened  |  |    |
                     |    |  | Sterile Saline Gauze  |  |    |
                     |    |  +-----------------------+  |    |
                     |    +-----------------------------+    |
                     +---------------------------------------+
====================================================================================

Deep dive 3: Corneal thermal burns, alkaline potassium carbonate residue, and open-globe shielding¶

One in five fireworks injuries strikes the eye, and bystanders (especially children watching from 3 to 15 meters away) account for nearly 50 percent of all fireworks eye blinding incidents.

1. Why Fireworks Eye Injuries Are a Triple Threat: Blunt Rupture + 1,500 C Burn + Alkaline Burn¶

When a misfired mortar shell, bottle rocket, or Roman candle star strikes the eye: 1. Blunt & Penetrating Open-Globe Trauma: A 44-millimeter mortar shell or bottle rocket hits the eyeball at 100 to 200 km/h (60 to 125 mph), causing an open-globe rupture (corneoscleral laceration), traumatic hyphema (blood filling the anterior chamber), lens dislocation, and retinal detachment. 2. Alkaline Potassium Carbonate (K2CO3) Saponification: Burned black powder (KNO3 + C + S) and pyrotechnic stars leave behind a caustic residue of potassium carbonate (K2CO3), potassium sulfide (K2S), and metallic oxides with an alkaline pH of 10.5 to 12.0. Unlike acids, alkaline firework residue saponifies fatty acids in corneal cell membranes, eating deeper into the corneal stroma every minute it stays in the tear film.

2. The Critical Ocular Triage Split: When to Shield Only vs. When to Irrigate Gently¶

Before touching a fireworks eye injury, inspect the eye under a flashlight (without pressing on the eyelid) to make this decision: 1. IF ANY SIGN OF OPEN-GLOBE RUPTURE IS PRESENT -> SHIELD ONLY (DO NOT FLUSH, DO NOT PRESS): - Red Flags: (a) The patient was struck directly by a flying projectile (rocket, shell, casing fragment, or PVC shard); (b) the pupil looks teardrop-shaped, peaked, or pulled to one side; © brown iris tissue or clear jelly is protruding; (d) the front of the eye is filled with blood (hyphema); or (e) the eyeball looks deflated. - Action: Do NOT irrigate with a forceful tap stream, do NOT pull out any embedded sliver, and do NOT put ointment into the eye. Cut the bottom 4 centimeters (1.5 inches) off a clean paper or foam cup (or use a rigid aluminum Fox eye shield) and tape it across the bony forehead brow and cheekbone to form a protective dome vault. 2. IF ONLY FINE ASH, SPARKS, OR POWDER SMOKE ENTERED AN INTACT EYE -> IRRIGATE GENTLY FOR 15 MINUTES: - If no projectile struck the eye, the pupil is round and centered, and only fine gunpowder smoke, sparkler flakes, or ash blew into the eye, gently irrigate the open eye with sterile 0.9% normal saline or lukewarm water for 15 to 20 minutes (pressing your fingers solely against the bony brow ridge and cheekbone, never on the globe itself) to wash out alkaline potassium carbonate ash before going to the Emergency Department.

Nọmba mberede mpaghara na ụkpụrụ ụlọ ọrụ¶

Ajụjụ a na-ajụkarị¶

Kedu ihe kpatara na agaghị m agbago n'ọkụ ọkụ "dud" ma ọ bụ gbalịa ime ka fuse dị ọhụrụ pụta?¶

Mgbe ihe ọkụ ọkụ na-egosi na ọ kwụsịrị ire ọkụ n'èzí, isi ntụ ntụ ojii na-aga n'ihu ugboro ugboro ** na-ese anwụrụ ọkụ n'ime mpempe akwụkwọ ma ọ bụ ngwa ngwa (mortar tube).`a hangfire`*** maka ** nkeji 5 ruo 15 ** na anwụrụ ọkụ na-ahụ anya ma ọ bụ ọkụ. Ije ije iji lelee gbọmgbọm nke ngwa ngwa ma ọ bụ na-ehulata ala iji nwulite obere stub nke fuse na-etinye anya gị, ihu gị na ụbụrụ gị ozugbo n'elu mkpuchi ahụ ozugbo ọkụ na-ese anwụrụ na-adaba ụgwọ mbuli wee malite shei ahụ na ** 160 kilomita kwa elekere (100 kilomita kwa elekere)**. Chere oge siri ike ** opekempe nkeji 20 ruo 30**, gbanye ngwaọrụ ahụ n'ebe dị anya, wee tinye ya n'ime bọket mmiri n'otu abalị.

Kedu ihe kpatara shei ngwa agha nwere ike ibugharị ji gbawa ozugbo m tụbara ya n'ime tube tupu mụ enwee ọkụ ahụ?¶

Mgbe ị na-agbapụ shei ikuku site na tube ngwa agha, mgbawa ntụ ntụ na-ahapụ n'azụ ** obere akwụkwọ na-egbuke egbuke na icheku ọkụ ** na ala nke gbọmgbọm gbara ọchịchịrị nke na-ekpo ọkụ (** 400 ruo 600 degrees Celsius ***) ruo ọtụtụ nkeji. N'ihi na ala nke shei ọzọ a na-ebugharị nwere obere akpa akwụkwọ ekpughere nke ** ụgwọ ebuli ntụ ntụ **, na-atụba shea ọhụrụ n'ime tube agbanyụ ọkụ na nso nso a na-edobe shei ọhụrụ ahụ n'elu ọkụ na-egbuke egbuke, na-agba ya ** 0.05 sekọnd ka emechara mgbe aka gị na ihu gị nọ n'elu ọnụ nke tube ahụ. Chere ma ọ dịkarịa ala ** nkeji 10 *** n'etiti ibugharị, tụfuo ntụ niile, ma jide shells n'akụkụ n'ogologo ogwe aka mgbe ị na-ebu.

Kedu otu m ga-esi chekwaa mkpịsị aka ma ọ bụ mkpịsị aka e bepụrụ ebipụrụ ka agbawara aka gbawara ọkụ ka ndị dọkịta na-awa ahụ nwee ike itinyeghachi ya?¶

Soro microsurgical **"Bag-on-Ice-water Slurry"**: (1) Jiri nwayọọ saline dị ọcha ma ọ bụ mmiri dị ọcha sachapụ unyi na-adịghị ọcha na mkpịsị aka ya (a kpochasịla ya ma ọ bụ tinye mmanya na-egbu egbu na ya); (2) kechie mkpịsị aka ahụ n'ime mpempe ** sterile gauze nke nwere saline na-ekpocha obere mmiri**; (3) mechie ya n'ime ** akọrọ, mmiri na-adịghị ekpuchi akpa rọba ***; na (4) tinye akpa ahụ akara n'elu ** ngwakọta nke ọkara ice na ọkara mmiri **. ** etinyela mkpịsị aka e bepụrụ ozugbo n'akpụrụ akpụ ma ọ bụ ice kpọrọ nkụ ***, nke na-ajụ oyi wee gbawaa arịa ọbara dị ntakịrị ka enweghị ike ịtụgharị mkpụrụ ọnụọgụ ahụ. Weta iberibe mkpịsị aka niile agbakere n'ụlọ ọgwụ, ọ bụrụgodị na agbajikwa ya, n'ihi na ndị dọkịta na-awa ahụ na-eji ha dị ka ihe eji eme ihe iji chekwaa mkpịsị aka ya.

Kedu ihe kpatara m ga-eji tinye teepu mpempe akwụkwọ n'elu mmerụ anya ọkụ kama ịpịnye gauze na ya?¶

Igwe ọkụ na-agba ọsọ dị elu, ihe mkpuchi mkpuchi, na ebili mmiri na-agbawa ugboro ugboro ** iberi ma ọ bụ gbajie mgbidi nke bọọlụ anya (`an open-globe injury`)**. Ọ bụrụ na ị pịa akwa gauze mpịaji ma ọ bụ mkpọ ice ozugbo megide bọọlụ anya gbajiri agbaji, nrụgide dị na mpụga ** na-amanye iris siri ike, oghere, na retina site na anya mmiri ahụ ***, na-ebute kpuru ìsì na-adịgide adịgide. Kama, bepụ ala dị ọcha ** akwụkwọ ma ọ bụ iko ọñụụụ ụfụfụ** ma techie ya n'ofe oghere ọkpụkpụ siri ike na cheekbone** nke mere na ọ ga-etolite dome siri ike n'anya na-enweghị imetụ bọọlụ anya ma ọ bụ nku anya.

Gịnị mere o ji dị ize ndụ ijide kandụl ndị Rom n'aka mgbe ị na-agbapụ ya?¶

Kandụl Roman na-agba bọọlụ 5 ruo 10 nke magnesium na-ere ọkụ na nnu dara na ** 1,500 degrees Celsius (2,730 degrees Fahrenheit) ** site na tube kaadiboodu nke njedebe ala ya na-agbanye naanị site na diski ** ụrọ agbakwunyere **. Ọ bụrụ na plọg na ala ụrọ gbawara ma ọ bụ mgbidi kaadiboodu na-agbaji na agba nke atọ ma ọ bụ nke anọ, ụgwọ mgbapụta ** na-agbanye bọọlụ na-acha ọcha na-acha ọkụ azụ azụ na ala nke tube ahụ ozugbo n'ime ọbụ aka gị gbachitere na nkwojiaka **, na-eme ka eriri afọ nke atọ na-ere ọkụ na ọbara ọgbụgba radial. Na-eli kandụl ndị Rom mgbe ọ bụla n'ime bọket ájá ma ọ bụ kegide ha n'osisi dị n'ala. Inweta enyemaka izizi agbaziri agbaziri, CPR, na Kwụsị usoro ọbara site na Red Cross, St John Ambulance, ma ọ bụ ebe trauma mpaghara na-akwado gị ịzaghachi na mgbawa ọ bụla ma ọ bụ ọkụ mberede.

Ntuziaka emetụtara¶

• Ntụnye ogbunigwe ogbunigwe ọkụ, shei misfire, imi dud, na kandụl Roman na-agbaghachi azụ.
• Mgbawa ọkụ, ọkụ ọkụ, na mmerụ ahụ gbawara
• Mbipụ n'ọgba aghara: mkpịsị aka, aka, na nchekwa ụkwụ
• mmerụ ahụ anya, kemịkalụ mwụsa, na ihe mkpuchi ụwa
• Ọbara siri ike na ngwa njem nlegharị anya ikuku

Isi mmalite na nduzi ọchịchị¶

• United States Consumer Product Safety Commission (CPSC) & National Fire Protection Association (NFPA): Akụkọ ọkụ ọkụ kwa afọ (Ngalaba Mberede na-agwọ ọrịa ọkụ site n'ụdị ngwaọrụ na mpaghara anụ ahụ), NFPA 1123 (koodu maka Ngosipụta ọkụ: 20-to-30-Minutar PVC na Misfire 6). 1507.
• ** American Society for Surgery of the Hand (ASSH) & American College of Surgeons (ACS):** * Nlekọta ahụike nke Fireworks Blast Hand (Thenar Space Disruption, Digital Artery Thrombosis, Ring Removal, and Indirect 4 C Normothermic/Hypothermic Replantation Transport)*.
• ** American Academy of Ophthalmology (AAO):*** Ọkụkụ Ọkụkụ Ọkụkụ Ọkụkụ Ọhụụ: Protocol Shielding Open-Globe (Fox Shield / Paper Cup Vault), Alkaline Potassium Carbonate (K2CO3) Mgbochi mmerụ ahụ nke ogbugba mmiri n'ubi, na nke ndị nọ n'akụkụ*.
• ** Health and Safety Executive (HSE, United Kingdom) & Natural Resources Canada (NRCan Explosives Regulatory Division):** * Na-arụ ọrụ nke ọma na Ngosipụta na Ọkụ Ndị Ahịa (Hangfire Standoff Intervals, Mortar Rack Bracing, and Category F2/F3/F4 Separation Distances)*.