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This utility model relates to a plant transplanting moisture-retaining support device, including a fixing strap with a locking mechanism. A connecting rod is fixedly installed on the outer surface of the fixing strap, and a support cylinder is rotatably installed at the end of the connecting rod. A support rod is fixedly installed at the bottom of the support cylinder, and a connecting cylinder is fixedly installed at the bottom of the support rod. A water inlet pipe is provided on the front of the connecting cylinder, and an insert is movably installed at the bottom of the connecting cylinder. Two cotton threads are provided inside the insert. A resistance-increasing block is fixedly installed on the inner side of the fixing strap, and a water storage tank is fixedly installed inside the connecting cylinder. This plant transplanting moisture-retaining support device, through the locking mechanism, allows adjustment of the inner diameter of the fixing strap by inserting it into the groove, accommodating plants of different thicknesses. Water from the water storage tank is slowly injected into the ground, thereby moisturizing the area around the transplanted plant and improving the success rate of plant transplanting.

The utility model discloses a double-cavity balloon catheter structure with non-coaxial double cavities, which comprises a catheter body with double cavities and a balloon arranged at the far end of the catheter body, the catheter body comprises an inner tube and an outer tube, the inner tube is arranged in the inner cavity of the outer tube, the tube cavity of the inner tube forms a guide wire cavity, a pressure-resistant balloon charging and discharging tube is arranged between the inner tube and the outer tube, and the balloon charging and discharging tube is arranged in the outer tube. The balloon charging and discharging pipe is provided with a balloon charging and discharging cavity, the far end of the balloon charging and discharging pipe is connected with an inner cavity of the balloon, so that the balloon charging and discharging cavity is communicated with the inner cavity of the balloon, the balloon is charged and discharged, and the inner wall of the outer pipe is tightly attached to the outer wall of the inner pipe. Compared with the prior art, when the balloon is filled, the filling pressure of the balloon does not affect the guide wire cavity, it is guaranteed that the guide wire cavity is not deformed due to extrusion of peripheral pressure, passing of a guide wire and other instruments in the guide wire cavity is not affected, the use risk is reduced, the success rate of an operation is improved, and the probability of occurrence of operative complications is reduced.