Keeb Kwm Ntawm Koob Hypodermic - Part 2

Nws yog Charles Gabriel Pravaz thiab Alexander Wood uas tsim cov koob txhaj tshuaj hypodermic. Tus qub yog los ntawm Scotland thiab tom kawg yog los ntawm Fabkis. Nws yog ib qho tseem ceeb heev rau tus neeg tsim khoom los patent nws txoj haujlwm; txwv tsis pub lub tswv yim yuav raug nyiag. Lub sijhawm ntawd leej twg patented yam tsis pom hauv google. Nws tau dag nyob rau hauv ib qho chaw ua hauj lwm nyob rau hauv lub inventor lub teb chaws. Lub koob txhaj tshuaj tsim los ntawm Pravaz tuaj rau kev siv tib lub sijhawm thaum Wood qhia txog nws txoj haujlwm. Qhov no yog vim li cas vim li cas ob leeg tau txais txiaj ntsig rau qhov kev tsim kho no.

Letitia Mumford Geer yog thawj tus patent rau ib qho kev siv lub koob txhaj tshuaj. Ua ntej ntawd ib tug xav tau kev pab los ntawm lwm tus neeg rau kev tswj hwm. Lub sijhawm ntawd, qhov no tsis suav tias muaj txiaj ntsig zoo, tsis nco qab txog yav tom ntej. Reusable syringe yog tsim los ntawm Chance Brothers hauv Askiv nrog rau lub thoob tshem tau thiab plunger. Nws yog txhua hom iav syringe. Nws kuj yog ib qho nyuaj los hloov cov koob txhaj tshuaj thiab kuj nyuaj rau nyiaj txiag.

Qhov kev hloov pauv loj tshaj plaws hauv kev kho mob yog kev tsim kho ntawm polymer thiab nws cov kev siv. Koob thiab koob txhaj tshuaj yog ib qho piv txwv zoo tshaj plaws. Colin Murdoch yog thawj tus tsim cov yas txhaj tshuaj yas pov tseg hauv xyoo 1956. Tom qab ntawd ntau thiab ntau cov patents tau pib nyob rau hauv patents chaw ua hauj lwm thiab cov me nyuam pib ntshai mus ntsib kws kho mob.

Yog tias koj muaj lus nug, thov hu rau peb. Peb lub tuam txhab tuaj yeem tsim ntau yam koob txhaj tshuaj, koob tshuaj kho mob, koob txhaj tshuaj, koob txhaj tshuaj, koob tshuaj tiv thaiv kab mob, koob txhaj tshuaj, koob txhaj tshuaj, koob txhaj tshuaj, koob xaum koob, koob ovum khaws koob, koob txhaj tshuaj, thiab lwm yam. Yog tias koj xav tau cov khoom siv koob txhaj tshuaj, thov hu rau peb. Peb tos ntsoov rau koj qhov kev nug! Qhov zoo ntawm cov khoom tsim nyob rau hauv peb lub Hoobkas yuav txaus siab rau koj!

Thov hu rau peb yog tias koj xav tau: zhang@sz-manners.com