Laparoscopic surgical retractor, retractor head for laparoscopic surgery, retractor head main body and manufacturing method thereof

Abstract

The invention discloses a laparoscopic surgical retractor, a retractor head for laparoscopic surgery, a retractor head main body and a manufacturing method thereof. The laparoscopic surgical retractor is provided with a handle, a handle seat, a wire thread insert, a stem, a fixed sleeve, a screw rod, a connection sleeve, a seal ring, a fixed plate, a retractor rod, a pull tube, a retractor seat and a retractor head, wherein a retractor head main body is made from shape memory hyperelastic nickel-titanium alloy. The retractor head comprises the retractor head main body and the front part of the retractor head. The invention further comprises the retractor head main body for the laparoscopic surgery and the manufacturing method thereof, the manufacturing method of the retractor head main body comprises the steps that: nickel and titanium raw materials are placed in a copper crucible to seal and vaccumize, and are smelted at 1800 DEG C for 2h; a plate is rolled after four times of rolling and annealing; the plate is cut into strips through electric sparks; the strip-shaped plates undergo finish machining to form blanks; and the blanks are placed in a shaper to be thermally treated for 20min at 480-500 DEG C, are cooled and demoulded. The laparoscopic surgical retractor and the retractor head main body have reasonable structures, and the retractor head has the superstrong reset function, and can be flexible in an instrument, so the surgery is facilitated.

Description

technical field

[0001] The invention relates to a laparoscopic surgery drag hook specially used for moving and separating tissues and organs in a human body in minimally invasive laparoscopic surgery, a drag hook head for laparoscopic surgery, a drag hook head body and a manufacturing method thereof. Background technique

[0002] In the prior art, there is no disclosure of the manufacturing method of the retractor head for minimally invasive laparoscopic surgery with good elasticity; if it is necessary to move and separate tissues and organs in the human body during laparoscopic surgery, special-purpose tissue and organ grasping forceps or separating forceps are usually used, resulting in There are many instruments, the operation application is troublesome, the operation time is prolonged, and the ideal operation effect cannot be satisfied. Due to the large curvature of the existing laparoscopic surgery retractor, it is difficult to enter the abdominal cavity of the human bo...

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