這種新型可轉(zhuǎn)動(dòng)的大核心乳房活檢設(shè)備，是一種全自動(dòng)一次性的手工操作的設(shè)備。該設(shè)備對(duì)乳房造成的創(chuàng)傷最小，是傳統(tǒng)乳房活檢設(shè)備很好的替代選擇。

該設(shè)備被稱作Cassi，操作方便而且無需準(zhǔn)備時(shí)間、無需固定設(shè)備的投資，節(jié)約醫(yī)護(hù)人員的時(shí)間與醫(yī)療成本。設(shè)備采用了保護(hù)的“棒狀冷凍”工藝，能夠傳遞體積大、精細(xì)的組織標(biāo)本，減少了傳遞次數(shù)。每次在一個(gè)地方，Cassi迅速使用“棒狀冷凍”方法固定病變組織，確保了活檢針接觸靶組織的安全。切割套管然后迅速轉(zhuǎn)動(dòng)穿刺針獲取組織樣本。該設(shè)備能夠獲得較大塊組織，證明其比細(xì)穿刺針吸入方法更加可靠，能夠幫助醫(yī)生對(duì)病變性質(zhì)做出準(zhǔn)確診斷。

Cassi設(shè)備與棒狀冷凍工藝是由Sanarus醫(yī)療公司(Pleasanton, CA, USA)研制成功的。在醫(yī)生診療室發(fā)現(xiàn)患者有房結(jié)節(jié)的時(shí)候，就能夠使用Cassi當(dāng)場(chǎng)進(jìn)行快速活檢，而且只需要局部麻醉。這就免除了患者預(yù)約回訪接受活檢的麻煩，而且患者精神上的壓力也較小。

美國(guó)Lemoyne(PA, USA)私人開業(yè)的乳房外科醫(yī)生Angela Soto Hamlin醫(yī)生解釋說：“最近，使用Cassi的確很好地幫助我從我的患者獲取高質(zhì)量組織標(biāo)本。而使用這些標(biāo)本，我就能夠做出更加準(zhǔn)確的診斷。而且?guī)椭冶苊饬藶榛颊吡硗獍才艜r(shí)間預(yù)約進(jìn)行活檢或者送患者到手術(shù)室。”

Minimally Invasive Breast Biopsy Device
 
A new rotational large-core breast biopsy device is a fully automated, disposable handheld device that offers a minimally invasive alternative to traditional breast biopsy devices.

Called Cassi, the device requires no set-up time, performs quickly, and requires no capital equipment investment, saving doctors time and cost. The device uses proprietary Stick Freeze technology to deliver large, precise tissue samples with fewer passes. Once in place, Cassi quickly immobilizes the lesion with a “stick freeze” that secures the targeted tissue to the biopsy needle. A cutting cannula then rotates quickly over the needle to obtain the tissue sample. Larger tissue samples are proving more reliable than fine-needle aspirations in helping doctors to accurately diagnose the nature of a lesion.

Cassi and Stick Freeze were developed by Sanarus Medical, Inc. (Pleasanton, CA, USA). When a breast lump is detected during a visit to a doctor’s office, Cassi can be used to perform a biopsy immediately and with local anesthesia. This may eliminate the need to schedule a return visit to perform the biopsy and is less stressful for patients.

“Recently, Cassi proved instrumental in helping me obtain a quality tissue specimen from one of my patients,” explained Dr. Angela Soto Hamlin , a private-practice breast care surgeon in Lemoyne (PA, USA). “From this specimen I was able to make a more accurate diagnosis, one that helped me avoid the delay of scheduling her biopsy for another day or sending her to the operating room.”