Patent ID: 11864796
Assignee: OHDAE CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. The needle channel bundle of claim 9, wherein, when an external force is not applied, the ratchet gear teeth of the needle channel bundle are seated and supported on the ratchet gear recesses of the ratchet support holder, respectively, and the elevation gear holder is positioned under the ratchet support holder,
wherein, when the elevation gear holder moves up until the wedge-type protrusions are higher than the ratchet gear recesses, the ratchet gear teeth slide down along inclined surfaces of the wedge-type protrusions, and the needle channel bundle is rotated by the predetermined angle, and, when the elevation gear holder moves down until the wedge-type protrusions are lower than the ratchet gear recesses, the ratchet gear teeth slide down along inclined surfaces of the ratchet gear recesses, and the needle channel bundle is configured to be rotated by the predetermined angle, such that the needle channel bundle is rotated by one channel by the ascending and descending operation of the elevation gear holder.