[Objective]To introduce the design and preliminary application results of multi-purpose shield in total knee arthroplasty(TKA).[Methods]The multi-purpose shield was comprised with shield plate connected with each other,a handle and a negative pressure getter.The shield plate was provided with a circular transparent window,a circular transparent window channel and a rectangular transpar-ent window.The rectangular transparent window was arranged in the middle of the top edge of the baffle,while the circular transparent win-dow was arranged on one side of the geometric center of the shield.The handle was connected with the lower part of the shield,where a nega-tive pressure getter connected with the opening in the middle part of the shield plate to form an suction port.The rear end opening was con-nected to an external negative pressure suction pipe to suck out the blood and debris near the shield plate or attached to the surface of the plate.[Results]The multi-purpose shield was applied in TKA in 86 patients,which effectively shielded the spattered blood and bone frag-ments,greatly reduced the surgical infection rate,and effectively protected medical staff to prevent blood-borne occupational exposure.All 86 patients had the operation performed successfully,with surgical incision healed well.All of them got knee function recovered well,with no serious complications such as infection occurred during follow-up.[Conclusion]This multi-purpose shield blocks and absorbs the pollut-ants such as blood and bone fragments spattered during TKA,reduces the infection rate,and reduces the pollution and injury to medical staff.
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