Nail Gun Puncture Akuru ne Mframa Adwinnade Fastener Apirakuru¶

Pneumatic, cordless gas-fuel, ne powder-actuated nail guns yɛ adwumayɛ apɔnkɔ a wɔde yɛ nnɛyi atrae a wɔde yɛ nneɛma, ɔdan atifi, pallet a wɔyɛ, ne ofie a wɔyɛ no ankasa, nanso ɛno nso ne ade biako pɛ a ɛde apirakuru a wɔde anyinam ahoɔden adwinnade a wɔde tow gu ayaresabea ba wɔ wiase nyinaa nso. Sɛnea Ɔman Asoɛe a Ɛhwɛ Adwumayɛ mu Ahobammɔ ne Akwahosan So (NIOSH) ne Centers for Disease Control and Prevention (CDC) kyerɛ no, nnadewa atuo de nnipa bɛyɛ 37,000 kɔ ayaresabea dwumadibea ahorow a wɔhwɛ ntɛmpɛ so afe biara wɔ United States nkutoo, a ɛkame ayɛ sɛ afiewuranom a wɔyɛ wɔn ankasa adwuma wɔ atrae 15,000 ka ho. Pneumatic framing nailer a ɛyɛ adwuma wɔ 5.5 kosi 8.3 bar (80 kosi 120 pounds per square inch / psi) tow dade framing nnade a ne kɛse yɛ sɛntimita 8 kosi 9 (3.0-to-3.5-inch) fi hwene no mu wɔ sekan mpempem kakraa bi mu wɔ ahoɔhare 30 kosi 45 mita wɔ sekan biara mu (100 kosi 150 anammɔn wɔ sekan biara mu). Nea tumi wom kɛse mpo ne nnwinnade a wɔde powder yɛ adwuma (Hilti anaa Ramset atuo), a wɔde .22-caliber kosi .27-caliber a ɛpae a wusiw nnim-powder cartridges di dwuma de tow dade nhama a ayɛ den kɔ ɔdan kɔnkrit ne dade I-beams mu wɔ mita 100 kosi 160 wɔ sekan biara mu (anammɔn 330 kosi 525 wɔ sekan biara mu), ahoɔhare ne ahoɔden a ɛma ɛyɛ pɛ ne tuo a wɔde nsa tuo yɛ pɛ.

Sɛ framing nnadewa anaa kɔnkrit pin bɔ onipa nipadua, sɛ́ efi contact-trip ("bump-fire") double-fire recoil, nnadewa a ɛbɔ tẽẽ fa nnua a wɔde abɔ mu no nkyɛn kɔ nsa benkum a ɛboa no mu, anaasɛ ricochet a ɛde ahoɔhare kɛse tu fi kɔnkrit anaa dade hardware so a, ɛde ballistic trauma a ɛkɔ akyiri a ɛkɔ akyiri ba. Nanso wɔ mmeae a wɔyɛ adwuma ne afie mu kar dan mu da biara da no, adwumayɛfo anaa mfɛfo adwumayɛfo a wɔapirapira di mfomso kɛse a ɛne sɛ wɔbɛfa duadwumfo afiri anaa nsateaa hama na wɔn ankasa twe nnadewa a wɔde ahyɛ mu no fi mu. Efisɛ nnɛyi nnadewa a wɔde yɛ fram no kura kɔbere nhama a ano yɛ nnam te sɛ agyan, plastic a ɛyɛ nsensanee, resin gluu a ɛyɛ hyew a ɛyɛ nnam, anaasɛ nkaa a ɛyɛ nsɔe a wɔde weld abɔ wɔn nhama ho, na ɛtwe nnadewa bi kɔ akyi fi nsa, kotodwe, moma so, anaa ti nhwi mu a X-ray nnim no tetew ntini, ntini, ne mogya ntini a enni dɛm mu bere a ɛrefi hɔ no kɔbere ne plastic nsɔe a ɛde ɔyare ba a wɔasie wɔ dompe no mu. Sɛ wunim nea enti a ɛsɛ sɛ wugyaw atuo biara a wɔde kyekyere nnadewa no wɔ nea ɛwɔ hɔ, sɛnea wobɛde odwumayɛni a wɔde nnadewa abɔ ne nsa anaa ne mpaboa denneennen wɔ nnua a wɔde abɔ no so, ne sɛnea wobɛyɛ w’ade wɔ asɛndua a wɔde abɔ ne koko ne ne ti nhwi mu a ɛde ne nkwa to asiane mu ho a, gye akwaa ne ne nkwa.

Yɛ eyi mprempren¶

1. Disconnect the air compressor hose, remove the battery/fuel cell, or unload the explosive cartridge strip from the nail gun immediately. When a worker is shot with a nail gun, their startled reflex or collapsing grip frequently squeezes the trigger a second time against their own body or a rescuer. Make the tool completely dead before kneeling beside the victim.
2. NEVER pull out a nail-gun nail or concrete pin using pliers, a claw hammer, or your hands. Leave the embedded nail strictly in place, whether it is in a finger, palm, knee joint, foot, eye, chest, or skull. Pulling a barbed, wire-collated, or ring-shank nail backward shreds nerves and blood vessels and strips toxic plastic or copper wire fragments off inside the bone.
3. If the victim's hand, fingers, or boot is nailed fast into a wooden stud, subfloor, or truss, cut the block of wood free rather than prying the hand off the nail. Use a handsaw or cordless reciprocating saw (cutting carefully at least 15 centimeters / 6 inches away from the victim's flesh while a second person braces the board to stop vibration) to cut out the small chunk of wood so the wooden block stays attached to the nail and rides with the patient to the emergency room.
4. Call your local emergency number immediately for any nail penetrating the head, eye, neck, chest, abdomen, thigh, or major joint. Dial 911 in the United States and Canada, 112 across the European Union, or 999 in the United Kingdom (see nɔma ahorow a egye ntɛmpɛ). A 9-centimeter (3.5-inch) framing nail shot into the chest or skull is a true life-threatening surgical emergency on par with a gunshot wound.
5. Stabilize the protruding nail head with bulky gauze padding and splint the limb. Wrap thick rolls of sterile gauze or clean cloth around both sides of the protruding nail shaft (or tape a protective paper cup over a short nail) so nothing can bump, twist, or push the nail deeper during transport; see mogya a ɛretu mmoa a edi kan.
6. Keep the patient completely still and give nothing by mouth (no food, water, or oral pain pills with liquids). Removing a barbed framing nail or debriding a joint capsule requires two-view orthopedic X-rays followed by sterile local nerve block or general anesthesia in the operating room.

How nail guns cause trauma: the four mechanical failure modes¶

Understanding how a nail leaves the tool and enters the human body helps emergency responders anticipate hidden internal damage (such as curved nail paths or deeply buried plastic collars) and helps carpenters eliminate the root cause on the jobsite.

flowchart TD
    A["Nail Gun or Powder-Actuated Fastener Injury"] --> B["1. Disconnect air hose / battery / cartridge IMMEDIATELY<br/>2. NEVER pull out the nail with pliers or claw hammer"]
    B --> C{"Where is the fastener impaled?"}
    C -->|"Head, Eye, Neck, Chest, Abdomen, or Groin"| D["LIFE-THREATENING EMERGENCY:<br/>Call 911/112/999 immediately; keep patient still; pad around nail without touching it"]
    C -->|"Hand, Finger, Wrist, Knee, or Foot"| E{"Is the victim's hand or boot pinned fast to a wooden structure?"}
    E -->|"Yes: Nailed to stud, rafter, or subfloor"| F["Do NOT pry hand off nail; brace wood to stop vibration and SAW the small block of wood free"]
    E -->|"No: Nail only in flesh/bone or through two fingers"| G["Pad around protruding nail with bulky gauze rolls; splint limb; remove rings immediately"]
    F --> H["Transport to Hospital ER for two-view X-rays and surgical extraction + tetanus & antibiotics"]
    G --> H

1. Contact-trip ("bump-fire") double-fire recoil¶

The number one mechanical cause of unintended nail-gun injuries is the Trigger Mechanism:

2. Knots, grain deflection ("fish-hooking"), and blow-through into the supporting hand¶

Over 60 percent of all nail-gun injuries strike the non-dominant hand (usually the left thumb, index, and middle fingers). Why? Because carpenters routinely hold two wooden studs or a truss joint together with their left hand while firing the nail gun with their right hand:

• Internal wood grain and knot deflection: A framing nail does not always travel in a straight line inside wood. When a high-velocity steel nail hits a dense resinous pine knot, a twisted grain line, an engineered laminated veneer lumber (LVL) glue layer, or a hidden drywall screw inside the wood, the bevel of the nail point deflects 45 to 90 degrees ("fish-hooking").
• Side blowout at 35 meters per second: The deflected nail blows straight out the side of the 2x4 stud up to 10 to 15 centimeters (4 to 6 inches) away from the nose of the gun, punching directly through the carpenter's left thumb or palm that was holding the board steady and pinning their hand fast to the wall.

3. Nosepiece slip-off ("toe-nailing") and through-air missiles¶

When framing walls or rafters, carpenters frequently drive nails at a steep 30-to-45-degree diagonal angle into the edge of a stud (toe-nailing). If the toothed nosepiece of a bump-fire gun slips off the sharp wooden corner just as the nose spring depresses, the nail fires straight through open air across the room like an arrow, striking a coworker or the operator's own leg, chest, or eye from several meters away.

4. Powder-actuated tool (Hilti / Ramset) concrete spalling and ricochet¶

Powder-actuated tools use explosive rimfire cartridges (.22, .25, or .27 caliber) to drive hardened ballistic steel pins into poured concrete slabs or structural steel girders:

• Concrete edge blowout and ricochet: If a powder-actuated pin is fired within 7.5 centimeters (3 inches) of the edge of a concrete slab, into an existing crack, or hits a thick steel rebar rod just beneath the concrete surface, the concrete shatters (spalling) and the hardened steel pin ricochets backward at 100+ meters per second, penetrating the operator's safety glasses, abdomen, or neck.
• Blow-through of hollow block or drywall: If a worker mistakenly fires a high-velocity powder-actuated concrete gun into a hollow cinder block or drywall partition wall, the steel pin shoots straight through both sides of the wall into the room next door like a rifle bullet.

Why you must NEVER pull out a nail-gun nail yourself: the surgical anatomy¶

To understand why emergency physicians and hand surgeons strictly forbid pulling a nail-gun fastener out on the jobsite (unlike stepping on a smooth, rusty loose nail lying on a board), look closely at how nail-gun strips are manufactured:

1. Barbed copper collation wires, serrated plastic collars, and resin glues¶

Nail guns feed nails from long strips or coils held together by one of three collation materials:

2. Why doctors take two-view X-rays before touching the nail¶

When you arrive at the hospital emergency department with the nail still in place:

1. Detecting wire barbs and bone fractures: An anteroposterior (AP) and lateral X-ray reveals immediately whether the nail has a copper wire barb stuck to its shaft, whether the tip is bent into a J-hook from hitting bone, and whether the phalanx or metacarpal bone has a comminuted fracture.
2. Choosing the right direction of extraction ("Push-Through" vs. "Pull-Back"): If the X-ray shows sharp copper wire barbs pointing backward toward the nail head and the point of the nail is already poking out (or nearly out) the far side of the finger, the hand surgeon will NOT pull the barbed nail backward through the finger. Instead, under sterile local anesthesia in the emergency room or operating room, the surgeon will snip the flat head off the nail with heavy sterile surgical bolt cutters and pull the nail FORWARD out the tip exit direction so the backward-facing copper barbs glide out cleanly without tearing a single nerve or tendon.

Step-by-step first aid for every nail gun injury scenario¶

Scenario A: Nail impaled in the Hand, Finger, Wrist, Knee, or Foot¶

1. Free the worker from the structure if nailed to wood:
2. If the nail passed through the finger or boot and locked into a 2x4 wall stud, roof rafter, or plywood subfloor, do not pull the person's hand off the nail.
3. Have a coworker firmly hold and brace the wooden board on both sides of the hand to prevent painful vibration, and use a handsaw or reciprocating saw to cut the board 15 centimeters (6 inches) on either side of the hand so the small block of wood comes away with the patient.
4. If two fingers are nailed together ("buddy-pinned"):
5. Do not try to pull the two fingers apart. Place a small folded piece of sterile gauze gently between the two fingers for cushioning, wrap bulky gauze around the whole hand to immobilize both fingers together as a single unit, and slide off any rings on uninjured fingers immediately before swelling starts.
6. If the nail pierced a leather work boot or sneaker into the foot:
7. Mma **ntwe boot no mfi nnadewa no so, na ntwe nnadewa no mfi boot no ase. Gyae boot no (bue hama a ɛwɔ soro no kakra na ama nan no ahonhon), pad twa nnadewa a ɛpuepue wɔ boot no ase no ho hyia sɛnea ɛbɛyɛ a ɔyarefo no remfa emu duru nhyɛ so, na ma ayaresabea no ntwa boot no nkɔ akyiri bere a wɔayɛ X-ray awie no. (Sneaker rɔba nan ase de Pseudomonas aeruginosa mmoawa kɔ nan nnompe mu, na ɛhwehwɛ sɛ wɔde oprehyɛn titiriw tew ho na wɔde nnuru a ekum ɔyare mmoawa kata so; hwɛ akuru a wɔatwitwa, apetepete, na wɔatow akuru.) .
8. Dɛn nti na nkotodwe-nkwaa nnadewa a wɔtow hwehwɛ sɛ wɔhohoro wɔ oprehyɛn dan mu arthroscopic washout:
9. Carpenters frequently shoot themselves in the knee while resting a nail gun against their leg or climbing scaffolding. Even if a nail touching the kneecap barely bleeds and can be wiggled easily, any nail that penetrates the synovial capsule of the knee joint is a surgical emergency requiring arthroscopic irrigation and intravenous antibiotics within hours to prevent permanent cartilage destruction from septic arthritis.

Tebea B: Nnadewa a wɔde abɔ Ti, Aniwa, Koma, Kɔn, anaa Yafunu mu a ɛde nkwa to asiane mu¶

1. Ti ne Ti ne Ti nhwi a ɛkɔ mu (Intracranial Nail):
2. Framing nnadewa a wɔtow fi bounce-triggers anaa ricochets mu no betumi abɔ mpanyimfo parietal, frontal, anaa temporal skull bone no mu tẽẽ (anaasɛ afa aniwa no mu anaa ano atifi akɔ mu) akodu nnadewa no ti so.
3. Remarkably, many patients with a 9-centimeter nail buried completely inside their brain remain awake, talking, and walking for the first 15 to 30 minutes because a narrow nail has lower kinetic energy cavitation than a rifle bullet.
4. Action: Sit or lay the person down immediately, forbid them from walking, never touch or pull the nail head, keep their head and neck immobilized still, call 911/112/999 for immediate transport to a Level 1 Trauma Center with Neurosurgery, and prepare for potential seizures or sudden unconsciousness; see ti a wɔapirapira.
5. Chest and Heart Penetration (Cardiac / Thoracic Nail):
6. If a nail strikes anywhere between the collarbones, the lower ribs, and the mid-axillary lines (especially the "cardiac box" in the center/left chest), assume the nail has pierced the right or left ventricle of the heart, the pericardial sac, the aorta, or the lung.
7. Action: Call 911/112/999 immediately. Leave the nail strictly untouched (it will often visibly pulse or wiggle in rhythm with every heartbeat; never strap down or push down on a pulsing cardiac nail). Tape a loose protective plastic dome or bulky gauze ring around the nail so nothing bumps it, keep the patient calm in a comfortable semi-sitting position, and watch closely for signs of cardiac tamponade (pale/blue skin, bulging neck veins, plummeting blood pressure, restlessness, and faint heart sounds).
8. Ocular (Eye) Nail or Wire Collation Fragment:
9. Even when a nail strikes wood normally, the pneumatic gun blasts tiny 3-millimeter copper wire snippets or plastic collation shards sideways out of the exhaust port at high speed. If a nail or wire fragment hits the eye, tape a rigid paper cup over the orbital bones without touching the protruding object, cover the uninjured eye as well (to stop sympathetic eye movement), and go straight to an emergency room; see eye injuries.

Mandatory OSHA / NIOSH jobsite prevention checklist for nail guns¶

Whether you are a professional framing contractor or a homeowner renting a nail gun for a weekend fence or deck project, follow these six proven engineering and work-practice controls:

• Use a Full Sequential Trigger (Single-Shot mode) at all times: Check the trigger selector switch on the side of your nail gun before connecting the air hose and set it to the single-nail sequential symbol (where the nose must be depressed before the trigger is pulled for every shot).
• Never hold wood within 30 centimeters (12 inches) of the nailing point with your free hand: Use mechanical framing clamps, vise grips, or tack blocks to hold unstable studs, rafters, and trim pieces in place while nailing so your left hand is completely out of the fish-hook blow-through zone.
• Disconnect the compressed air hose (not just your finger off the trigger) whenever:
• Clearing a jammed nail inside the nosepiece or magazine.
• Climbing up or down a ladder, scaffold, or roof truss.
• Passing the nail gun to another worker.
• Leaving the nail gun unattended on the floor or sawhorse.
• Never carry a nail gun with your index finger resting on the trigger, and never rest the nose of a connected nail gun against your thigh, foot, or chest.
• Always wear ANSI Z87.1+ side-shielded impact safety glasses or goggles and a hard hat (for both the operator and every coworker working in the same room, as copper wire and plastic collation fragments shoot sideways on every single shot).
• Never bypass, tape back, or remove the spring-loaded nosepiece safety contact yoke (doing so turns a pneumatic nailer into an illegal, un-aimed air rifle that shoots nails across the room whenever the trigger is touched).

Cordless gas-cartridge nailers, air compressor hazards, and infection signs¶

Modern construction sites use three different power sources to drive nails, and each introduces specific emergency hazards beyond the steel nail itself:

Recognizing post-removal bone and tendon sheath infections¶

Because every nail-gun fastener drags dirty work-glove leather fibers, sawdust, skin bacteria (Staphylococcus aureus and Streptococcus), copper plating, and synthetic collation glue deep into poorly vascularized bone and synovial tendon spaces, the emergency is not over once the doctor pulls the nail out in the hospital:

1. Kanavel's Four Cardinal Signs of Pyogenic Flexor Tenosynovitis (Tendon Sheath Infection): If a nail punctured the palm side of a finger or thumb and bacteria begin multiplying inside the sealed flexor tendon sheath 12 to 72 hours after injury, the patient will develop four classic surgical emergency signs:
2. Fusiform ("sausage-like") symmetrical swelling of the entire finger.
3. Flexed resting posture: The finger stays held in a slightly bent hook position.
4. Tenderness along the entire course of the flexor tendon sheath (from the fingertip all the way down into the palm crease, not just at the nail hole).
5. Severe, excruciating pain upon passive extension (when someone gently tries to straighten the bent finger tip).
6. Immediate action: Return to the hospital emergency room immediately; flexor tenosynovitis can destroy the gliding tendon permanently within 24 hours without intravenous antibiotics and surgical catheter washout.
7. Plantar Pseudomonas osteochondritis after a nail-through-boot injury: When a framing nail or roofing nail punches through the warm, damp foam rubber sole of a work boot or athletic sneaker into the foot bones (calcaneus or metatarsals), it inoculates the bone directly with Pseudomonas aeruginosa, a bacteria that thrives inside shoe foam. If deep throbbing foot pain, redness, or drainage appears 3 to 14 days after a foot puncture despite taking standard oral skin antibiotics (like cephalexin, which does not kill Pseudomonas), go to the hospital for bone imaging, surgical debridement, and targeted anti-pseudomonal antibiotic therapy.

Taking a hands-on First Aid, Stop the Bleed, and Workplace Trauma course from the Red Cross, St John Ambulance, or an occupational safety council gives you the confidence to stabilize penetrating tool injuries until trauma surgeons take over; see workplace injuries.

Nsɛm a wɔtaa bisa¶

Why shouldn't I pull a nail-gun nail out of my finger or hand with pliers like a normal nail?¶

Nea ɛnte sɛ nnadewa a ɛyɛ mmerɛw a ɛyɛ mmerɛw a ebia wobɛtiatia so no, wɔde kɔbere nhama a wɔde weld ayɛ no nsensanee, plastic kɔla a ɛyɛ mmerɛw, anaa resin gluu a ɛyɛ hyew na ɛkyekyere nnade a wɔde nnade tuo tow no bom wɔ nhama mu, na pii wɔ nkaa a ɛyɛ nsɔe. Sɛ nnadewa no tow kɔ wo nsa mu a, kɔbere hama a ano yɛ nnam te sɛ agyan anaa plastic asinasin a ɛyɛ nsensanee no kɔ so bata nnadewa no afã horow ho wɔ wo honam mu tɔnn. Sɛ wode pliers twe nnadewa no kɔ akyi a X-ray nnim a, ɛyɛ adwuma te sɛ nea wobɛtwe mpataa a wɔde nsɔe ayɛ afa wo nsateaa mu, atetew dijitaal ntini, ntini, ne ntini a enni dɛm mu bere a woreprapra plastic anaa kɔbere asinasin a ɛde ɔyare ba no mu akɔ dompe no mu no. Bere nyinaa gyaw nnadewa no wɔ nea ɛwɔ hɔ sɛnea ɛbɛyɛ a oduruyɛfo a ɔhwɛ ntɛmpɛ so betumi ayɛ no X-ray na mpɛn pii no otwitwa ti no de atwe akɔ n’anim yiye.

Sɛ obi de nnadewa bɔ ne nsa anaa ne boot mu tẽẽ wɔ kwan bi so wɔ nnua a wɔde ayɛ ɔfasu anaa fam a ɛwɔ fam mu a, dɛn na ɛsɛ sɛ yɛyɛ?¶

Nea edi kan no, twa mframa hose anaa batere no fi nnadewa tuo no mu ntɛm ara sɛnea ɛbɛyɛ a entumi nto tuo bio. Mmɔ mmɔden da sɛ wobɛtwe onipa no nsa anaa ne nan afi nnadewa no so, na mmɔ mmɔden da sɛ wobɛtwe nnadewa no afi dua no mu afa wɔn nsa so. Mmom no, ma obi a ɔto so abien nkura na ɔkyekyere nnua a wɔde ayɛ no denneennen wɔ nsa a apira no afã abien no nyinaa na amma ɛwosow a ɛyɛ yaw, na fa nsa a wɔde saw anaasɛ saw a ɛsan kɔ (twa no yiye sentimita 15 / nsateakwaa 6 fi honam ani) ntwitwa nnua no fã ketewaa no sɛnea ɛbɛyɛ a nnua no bɛkɔ so abata nnadewa no ho na ɔne ɔyarefo no atu kwan akɔ ayaresabea.

Nsonsonoe bɛn na ɛda contact-trip ("bump-fire") trigger ne full sequential trigger a ɛwɔ nnade tuo so ntam?¶

Contact-trip ("bump-fire") trigger ma nea ɔde di dwuma no tumi piapia na ɔkura trigger no ase bere nyinaa sɛnea ɛbɛyɛ a nnadewa bi bɛtow bere biara a wɔbɛbɔ tuo no hwene ano wɔ biribi so no. Bere a ɛyɛ ntɛmntɛm ma ade a wɔde kata so a ɛyɛ tratraa no, bere a tuo no tow nnade akyi no, recoil taa ma tuo no bɔ ne mprenu so wɔ dua no so anaasɛ ɛkɔ nea ɔde di dwuma no ankasa kotodwe, nan, anaa nsa a ɛboa no so, na ɛtow nnadewa a ɛto so abien a wanhyɛ da wɔ sekan mu nkyem abien mu. Nnadewa a ɛtoatoa so a edi mũ hwehwɛ sɛ nea ɔde di dwuma no mia hwene no ano petee wɔ dua no so KAN na afei ɔtwe afiri no ma nnadewa ankorankoro biara, na ɛtew nnadewa a wɔanhyɛ da apira no so bɛboro ɔha biara mu nkyem 50 sɛnea NIOSH nhwehwɛmu ahorow kyerɛ no.

Dɛn nti na duadwumfo pii tow wɔn ankasa nsa benkum tuo bere a na wɔde nnade tuo no akyerɛ nnua kyerɛwpon bi mu tẽẽ no?¶

Sɛ nnadewa a ɛde ahoɔhare kɛse yɛ framing no hyɛn nnua a wɔde hyɛ mu a ɛyɛ mita 35 wɔ sekan biara mu (anammɔn 115 wɔ sekan biara mu) na ɛbɔ nhama a ɛyɛ den a ɛwɔ mu, nnua a wɔakyinkyim, anaasɛ nkɔnsɔnkɔnsɔn bi a ahintaw wɔ board no mu a, nnadewa no beveled point no dan kɔ nkyɛn denneennen ("fish-hooking"). Wɔ milisekɔn kakraa bi mu no, nnadewa no kɔ akyiri digrii 90 na ɛbɔ tẽẽ fi 2x4 nhama no nkyɛn kɔ sɛntimita 10 kosi 15 (nsateakwaa 4 kosi 6) fi tuo no hwene ho, na sɛ wɔkura kyerɛwpon no bɛn nkwaa no dodo a, ɛbɔ duadwumfo no nsa benkum mu tẽẽ.

Sources checked¶

• National Institute for Occupational Safety and Health (NIOSH / CDC) and Occupational Safety and Health Administration (OSHA, United States): Nail Gun Safety: A Guide for Construction Contractors (NIOSH Publication No. 2011-202 / OSHA EPUB 3459)
• Centers for Disease Control and Prevention (CDC, United States): Nnadewa-Tuo a Wɔapirapira a Wɔsa Wɔ Dwumadibea a Ɛho Hia Ntɛmntɛm (MMWR Surveillance Summaries)
• Amerika Fekuw a Ɛhwɛ Nsa Oprehyɛn So (ASSH) ne Journal of Bone and Joint Surgery (JBJS): Oprehyɛn a Wɔde Di Nsa ne Nsa ne Kotodwe Ho Apirakuru a Wɔde Nsaawa a Wɔde Nnua a Wɔde Nsɔe Ayɛ ne Plastic a Wɔde Ayɛ Mframa Nnadewa Tuo Ho
• Akwahosan ne Ahobammɔ Dwumadibea (HSE, United Kingdom): Nnade a Wɔde Siesie Tuo ne Nnwinnade a Wɔde Siesie Nneɛma a Wɔde Cartridge Di Dwuma (Powder-Actuated Systems) a Wɔde Di Dwuma Dwoodwoo
• Consumer Product Safety Commission (CPSC) ne ANSI SNT-101 (United States): Ahobammɔ ho Ahwehwɛde ahorow a ɛfa Nnwinnade a Wɔde Ka Kar a Wotumi Fa, Mframa a Wɔahyɛ no Den, Fastener a Wɔde Ka Kar Ho wɔ Adansi mu

Akwankyerɛ ahorow a ɛfa ho¶

• Nhyɛso kɛse injection opira ne anyinam ahoɔden adwinnade kickback
• Severe bleeding and tourniquet application
• Ntwitwiridii, twitwiw, ne akuru a wɔatow
• Eye injuries: chemical splashes, foreign objects, and trauma
• Workplace injuries and industrial accidents