Abstract: The present invention provides an in-vivo detection apparatus and system based on a flexible tube. The apparatus includes: a detection component, a main circuit board, a detection circuit board, an auxiliary circuit board, a cable, and an outer tube. The in-vivo detection apparatus has improved welding strength and reliability particularly when a packaging size is limited.

Abstract: a dilatable balloon catheter, comprising: a guide wire inserted and disposed in the inside of the catheter, an operation portion is fixedly connected to one end of the catheter, a balloon is disposed at the outer side of the catheter remote from the operation portion, the lumen of the catheter and the inner cavity of the balloon are connected by a communication structure provided on the catheter, the guide wire includes a first guide wire and a second guide wire which are separated from each other, the rear end of the first guide wire is connected to insertion-extraction structure in the rear end of the operation portion, the second guide wire is fixed to the inside of the catheter by a fixing process.

Abstract: a dilatable balloon catheter, comprising: a guide wire inserted and disposed in the inside of the catheter, an operation portion is fixedly connected to one end of the catheter, a balloon is disposed at the outer side of the catheter remote from the operation portion, the lumen of the catheter and the inner cavity of the balloon are connected by a communication structure provided on the catheter, the guide wire includes a first guide wire and a second guide wire which are separated from each other, the rear end of the first guide wire is connected to insertion-extraction structure in the rear end of the operation portion, the second guide wire is fixed to the inside of the catheter by a fixing process.

Abstract: A non-vascular lumen guide wire, comprising a mandrel (1) and a ball head (2) prepared with a metal material, wherein an outer diameter of the insertion end of the mandrel (1) is smaller than the outer diameter of the non-insertion end of the mandrel; the insertion end of the mandrel (1) is connected to the ball head (2), a plastic coating layer (3) is wrapped around the outer side of the mandrel (1), the outer diameter of the ball head (2) is larger than the outer diameter of the insertion end of the plastic coating layer (3), and the outer diameter of the ball head (2) is not larger than the non-insertion end of the plastic coating layer (3). The guide wire, by means of using a ball head (2) with a diameter slightly larger than the plastic coating layer (3) at a far end, may effectively avoid the defects that the guide wire falls off in actual use, or the plastic coating layer (3) at the far end easily rolls up when inserted.