Ob tus kws kho mob tau tsim lub saw saw hauv 1780 kom tshem tawm cov pob txha hauv plab yooj yim dua thiab siv sijhawm tsawg dua thaum yug menyuam. … Lub chainsaw tau siv sai sai rau lwm yam kev txiav cov pob txha thiab txiav hauv chav phais.
Thaum twg lawv tau tso tseg tsis siv saws tes rau kev yug menyuam?
Cov txheej txheem tau raug hu ua symphysiotomy thiab tseem siv hauv kev kho mob raws li cov kws phais tau pom tias nws tuaj yeem ua haujlwm tau zoo npaum li cas hauv lwm qhov xwm txheej, xws li kev txiav tawm. Nws kav dhau ntau xyoo pua 19 ua ib feem ntawm lub thawv phais kom txog rau thaum C-sections loj hlob tuaj.
Puas yog chainsaw tsim rau kev yug menyuam?
Yog, thawj chainsaw tiag tiag tau tsim los siv thaum yug menyuam- txawm hais tias ua tsaug nws yog qhov kev quaj deb ntawm cov hluav taws xob uas cov neeg txiav ntoo nrog niaj hnub no. Tus qauv yog tsim los ntawm ob tug kws kho mob Scottish - John Aitken thiab James Jeffray - nyob rau hauv lub xyoo pua 18th, rau cov txheej txheem ntawm symphysiotomy.
Thaum twg 1 chainsaw tau tsim?
Lub hauv paus pib ntawm cov saw saw niaj hnub no tau sib cav. Thawj chainsaw yog tsim los ntawm German orthopaedist Bernhard Heine hauv 1830. Nws hu ua osteotome, los ntawm Greek osteo (pob txha) thiab tome los yog tomi (txiav); lus, tus pob txha. Lub chainsaw no, nrog rau ntau tus ua raws, tau siv rau kev kho mob.
Husqvarna chainsaw zoo tshaj plaws puas tau ua?
YBest Husqvarnachainsaws
- Husqvarna 455 Rancher gas chainsaw: Cov roj chainsaw zoo tshaj plaws. …
- Husqvarna 120i cordless chainsaw: Lub roj teeb zoo tshaj plaws-powered chainsaw. …
- Husqvarna 435e II gas chainsaw: Tus nqi zoo tshaj Husqvarna chainsaw. …
- Husqvarna 460 Rancher chainsaw: Zoo tshaj plaws chainsaw. …
- Husqvarna 120 Mark II chainsaw: Zoo tshaj rau cov hauj lwm me.
