A multi-channel single-hole laparoscopic trocar
A single-hole, multi-channel technology, used in puncture needles, puncture needles, inoculation and ovulation diagnosis, etc., can solve problems such as the influence of the range of motion of the instrument, the influence of the softness of the product, and the inconvenience of surgical operation, and achieves good air tightness. Operation time, convenient connection and operation effect
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Embodiment 1
[0022] Such as Figure 1-3 Shown: a multi-channel single-hole endoscopic trocar, which includes a multi-hole operating platform 1 and a channel tube 2 connected to the multi-hole operating platform 1. The channel tube 2 includes a tubular flexible film channel 3 and a flexible film channel located on the flexible film channel. 3, the lower ring 4 at the lower end, the upper end of the flexible film channel 3 is connected to the porous operating platform 1, and the porous operating platform 1 is connected to the flexible film channel 3 through a sealing connection assembly, and the sealing connection assembly includes a flexible The flexible flange 5 at the upper end of the membrane passage 3, the disk surface of the flexible flange 5 is connected to the lower surface of the porous operating platform 1, and the flexible flange 5 connects the porous operating platform 1 with the flexible membrane passage 3 and makes the porous operation Platform 1 rotates on its central axis. T...
Embodiment 2
[0048] Embodiment 2 of the present invention has substantially the same structure as Embodiment 1, and the main difference is that in Embodiment 2, the ring-shaped sealing plate A9 in Embodiment 1 is replaced by the ring-shaped sealing plate B12.
[0049] In the second embodiment, the sealing connection assembly includes an annular sealing plate B12 arranged between the surface of the flexible flange 5 and the lower surface of the porous operating platform 1, and the lower surface of the annular sealing plate B12 is connected to the flexible flange. 5 is fixedly connected to the disk surface, the upper surface of the annular sealing plate B12 is provided with an annular groove C13 and / or an annular protrusion C, and the lower surface of the porous operating platform 1 is provided with an interference fit with the annular groove C13 The annular protrusion D14 and / or the annular groove D that interferes with the annular protrusion C.
[0050] Such as Figure 4 , 5 Shown: In th...
Embodiment 3
[0051] Embodiment 3: Embodiment 3 of the present invention has substantially the same structure as Embodiments 1 and 2. The main difference is that the ring-shaped sealing plate B and the ring-shaped sealing plate A are not provided in Embodiment 3, but the porous operating platform 1 The lower surface of the lower surface is in direct contact with the upper surface of the flexible flange 5. In Embodiment 3: the lower surface of the porous operating platform 1 is provided with an annular protrusion E and / or an annular groove E, and the flexible flange An annular groove F matching the annular protrusion E and / or an annular protrusion F matching the annular groove E are provided on the upper surface of the disk 5 .
[0052] Because when the porous operating platform 1 and the flexible flange 5 are both made of flexible materials, they are in direct contact, the friction of the contact surface will be relatively larger than that of the first and second embodiments, and the sealing...
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