Wound healing and other surgical technologies traditionally solved by suturing and stapling have recently been enhanced by the application of laser tissue welding. The usage of high energy laser radiation to anastomose tissues eliminates a foreign body reaction, reduces scar formation, and allows for the creation of watertight closure. In the current work, we show that an ultrafast pulsed fibre laser beam with 183 µJ·cm⁻² energy fluence at 1550 nm provides successful welding of dissected chicken heart walls with the tensile strength of 1.03±0.12 kg·cm⁻² equal to that of native tissue. The welding process was monitored employing fluorescence spectroscopy that detects the biochemical composition of tissues. We believe that fluorescence spectroscopy guided laser tissue welding is a promising approach for decreasing wound healing times and the avoiding risks of postoperative complications.

中文翻译：

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通过1550 nm的激光脉冲猝发进行心脏组织的自体荧光引导焊接

传统上通过缝合和缝合解决的伤口愈合和其他外科技术最近已通过激光组织焊接的应用得到了增强。对吻合组织使用高能激光辐射可消除异物反应，减少疤痕的形成，并形成防水密封。在当前的工作中，我们显示了在1550 nm处能量通量为183 µJ ·cm ^-2的超快脉冲光纤激光束可成功焊接切开的鸡心壁，其拉伸强度为1.03±0.12 kg·cm ^-2。等于天然组织。使用检测组织的生化成分的荧光光谱法监测焊接过程。我们认为，荧光光谱引导的激光组织焊接是减少伤口愈合时间并避免术后并发症风险的一种有前途的方法。