Radial universal sealing device for trocar and trocar
A technology of sealing device and puncture device, applied in the field of puncture device, to achieve the effect of low resistance, good dynamic sealing performance and increased resistance
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Embodiment 1
[0073] Embodiment 1: Radial universal sealing device of the present invention
[0074] refer to Figure 1 to Figure 13 , according to the technical scheme of the present invention, design concrete part drawings.
[0075] The guide adjustment mechanism (1), the guide adjustment mechanism housing (2), and the rotation mechanism (4) are made of medical polymer materials, and the materials are selected from: including but not limited to, medical PC, medical PP, medical PE, medical PU, medical PA and other medical plastics. Wherein, super-slippery material coatings can be provided on the upper guide surface (102) and the lower guide surface (103) to reduce the frictional resistance when the surgical instrument moves.
[0076] The sealing ring (3) is made of medical elastic materials, including but not limited to flexible medical materials such as medical silicone, medical rubber, medical polyurethane, and medical latex. Sjiao
[0077] When assembling, insert the positioning hoo...
Embodiment 2
[0090] Embodiment 2: trocar of the present invention
[0091] refer to figure 1 , figure 2 , image 3 , Figure 15-1 to Figure 15-4 .
[0092] In this embodiment, the trocar includes the radial universal sealing device of the present invention.
[0093] In this embodiment, the trocar consists of a sheath (7) and a puncture rod (8). The sheath (7) contains a radial sealing module (71), a one-way valve module (72) and an outer tube (73).
[0094] The radial sealing module (71) includes a casing (711), a radial universal sealing device (5) of the present invention, an upper pressing plate (712), a lower pressing plate (713), and a special-shaped sealing ring (714). The universal sealing device (5) of the present invention is installed in the casing (711). The upper pressing plate (712) presses the installation edge (34) of the sealing device (5) of the present invention, and a special-shaped sealing ring (714) is installed between the upper pressing plate (712) and the lo...
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