The utility model discloses a free knife of a breast flap, including a knife body, including a knife head and a knife tip. The tip of the knife includes the back of a knife and a knife edge, the cutter head and the blade are all arc shaped, and the arc center of the circular arc corresponding to the back of the knife and the blade is located near the side of the back of the knife, and the arc length of the blade is larger than the arc length of the back of the knife; the handle of the knife is fixed to the front face. It is connected with a knife body, and a plurality of lights are arranged around the blade body, a power supply is provided in the knife handle, a groove is provided on the upper end face of the knife handle, a conductive piece is provided with an electric connection with the lamp ball on the bottom wall of the groove, and an elastic conductive contact sheet is separated on the upper part of the conductive piece, and the elastic conductive touch sheet is electrically connected with the power supply; when the elastic conducting touch plate is subjected to pressure, the elastic conductive contact sheet is subjected to pressure. After that, the elastic deformation can occur and contact with the conductive sheet to brighten up a plurality of lamp beads. The effect: the back and blade of the knife are all set into a arc structure, and the arc length of the blade is longer than the length of the back arc. Then the length of the free flap with the blade tip is long, so the free time and the overall operation time of the flap can be shortened.
【技术实现步骤摘要】
乳腺皮瓣游离刀
本技术涉及医疗器械领域,尤其涉及一种乳腺皮瓣游离刀。
技术介绍
乳腺癌是女性常见恶性肿瘤,根治性手术仍是目前主要的治疗方法。我国普遍采用乳腺癌根治术或改良根治术,无论何种术式,首先需将乳腺皮肤与皮下脂肪层分离,形成皮瓣。各种术式均对皮瓣游离有较高的要求,皮瓣太薄,则皮肤与其下方的动、静脉血管易脱离,致使皮瓣血循环不良而导致皮瓣坏死,太厚则可能导致癌残留和术后肿瘤复发。一般认为术中皮瓣游离厚度为3-4mm,近肿瘤处皮瓣可适当薄,其余处皮瓣保留适当厚度的皮下脂肪层以保存其内的血管网,尽量使皮瓣厚度均匀,即形成“切缘薄外围厚的薄梯形”皮瓣。临床大多使用普通手术刀进行皮瓣游离,而现有的手术刀,刀尖弧长较小,因此,每次切割的切口长度均较小,从而使得在进行皮瓣游离时花费的时间较长,使得整体的手术时间较长,不利于使用。
技术实现思路
本技术旨在至少在一定程度上解决相关技术中的技术问题之一。为此,本技术的目的在于提出一种乳腺皮瓣游离刀。为实现上述目的,根据本技术实施例的乳腺皮瓣游离刀,包括:刀身,所述刀身包括刀头及连接于所述刀头前端的刀尖;所述刀尖包括刀背及刀刃,所述刀背 ...
【技术保护点】
1.一种乳腺皮瓣游离刀,其特征在于,包括:刀身,所述刀身包括刀头及连接于所述刀头前端的刀尖;所述刀尖包括刀背及刀刃,所述刀背及所述刀刃均呈圆弧形结构,且所述刀背的弧长小于所述刀刃的弧长;所述刀背及所述刀刃所对应的圆弧的弧心均位于靠近所述刀背的一侧;刀柄,所述刀柄的前端面固定连接有所述刀身,且所述前端面上环绕所述刀身设置有多个相互串联的灯珠,所述刀柄内设置有用于为所述多个灯珠供电的电源;所述刀柄的上端面开设有一凹槽,所述凹槽的底壁上设置有与多个所述灯珠电连接的导电片,所述导电片的上方设置有与所述导电片相分离的弹性导电触片,所述弹性导电触片与所述电源电连接;当所述弹性导电触片受 ...
【技术特征摘要】
1.一种乳腺皮瓣游离刀,其特征在于,包括:刀身,所述刀身包括刀头及连接于所述刀头前端的刀尖;所述刀尖包括刀背及刀刃,所述刀背及所述刀刃均呈圆弧形结构,且所述刀背的弧长小于所述刀刃的弧长;所述刀背及所述刀刃所对应的圆弧的弧心均位于靠近所述刀背的一侧;刀柄,所述刀柄的前端面固定连接有所述刀身,且所述前端面上环绕所述刀身设置有多个相互串联的灯珠,所述刀柄内设置有用于为所述多个灯珠供电的电源;所述刀柄的上端面开设有一凹槽,所述凹槽的底壁上设置有与多个所述灯珠电连接的导电片,所述导电片的上方设置有与所述导电片相分离的弹性导电触片,所述弹性导电触片与所述电源电连接;当所述弹性导电触片受向下的按压力时,所述弹性导电触片可发生弹性形变并与所述导电片相接触,以使所述电源及多个所述灯珠之间形成闭合回路。2.根据权利要求1所述的乳腺皮瓣游离刀,其特征在于,所述刀柄的上端面由前至后间隔均匀的开设有多个凹槽,相邻两个凹槽之间均开设有连通两个所述凹槽的第一通孔及第二通孔,所述导电片的长度与所述刀柄的长度相等并由前至后依次穿设于每个所述第一通孔内,所述弹性导电触片的长度与所述刀柄的长度相等并由前至后依次穿设于每个所述第二通...
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