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Publication Number
US-10603447-B2
Publication Date
2020-03-31
Expiration Date
Abstract
In a safety apparatus for medical needles, when leg portions are extended from a first folded position to a second extended position, a distal end of a needle is introduced into a space of a shield member connection hub, and a first blocking wall and a second blocking wall overlap so as to block the cross section of the space to form a double blocking wall and blocks the cross section of the space. The double blocking wall is capable of preventing the distal end of the needle from moving downward from the double blocking wall and preventing the distal end of the needle from being exposed to the outside of the apparatus.
Core Innovation
A safety apparatus for medical needles is disclosed that includes a needle member, a shield member, and a fixing member. The needle member comprises a needle having a distal end, and the fixing member comprises a fixing member connection hub. The shield member comprises a shield member connection hub disposed inside the fixing member connection hub and a leg portion connected to the shield member connection hub, and the shield member connection hub comprises a first blocking wall and a second blocking wall.
When the leg portion is in a folded position, the first blocking wall and the second blocking wall are separated from each other. With the leg portion extending from the folded position to an extended position, the distal end of the needle is introduced into a space in the shield member connection hub, and the first blocking wall and the second blocking wall move relative to each other so as to overlap directly below the distal end of the needle to form a double blocking wall.
The double blocking wall is formed to prevent the distal end of the needle from moving downward from the double blocking wall and from being exposed. The disclosure describes the overlapping blocking-wall arrangement within the shield member connection hub to ensure the cross-section of the needle-receiving space is fully blocked when the leg portions move to the extended state, addressing a prior-art issue in which a lower wall could be caught and fail to block an opening.
Claims Coverage
The claim coverage identifies 7 inventive features centered on a shield member connection hub having first and second blocking walls that are separated in a folded position and overlap in an extended position to form a double blocking wall directly below the needle distal end.
Double blocking wall formed by overlapping first and second blocking walls
With the leg portion extending from the folded position to an extended position, the first blocking wall and the second blocking wall move relative to each other so as to overlap each other directly below the distal end of the needle to form a double blocking wall.
Preventing the needle distal end from moving downward
The double blocking wall is formed to prevent the distal end of the needle from moving downward from the double blocking wall.
Separated blocking walls in folded position and introduction into a space
When the leg portion is in a folded position, the first blocking wall and the second blocking wall are separated from each other, and the distal end of the needle is introduced into a space in the shield member connection hub with the leg portion extending to an extended position.
Shield member connection hub with a first blocking wall on a proximal slide member
The shield member connection hub includes a slide member at the proximal end, and the first blocking wall is provided on the slide member.
Second blocking wall at a lower portion of the connection hub
A second blocking wall is arranged at a lower portion of the shield member connection hub.
Relative rotational movement between blocking walls
The first blocking wall can rotate relative to the second blocking wall.
Folding-state arrangement permitting downward movement through an inter-wall space
When the leg portion is folded, the first blocking wall and the second blocking wall are separated so as to allow the distal end of the needle to move downward through the space between the first blocking wall and the second blocking wall.
Across the independent and dependent claim set, the coverage centers on the shield member connection hub having first and second blocking walls that are separated in a folded position and overlap in an extended position to form a double blocking wall directly below the needle distal end, thereby preventing downward movement and related exposure. Dependent claims refine the structure and relative movement of the blocking walls within the hub, including slide-member placement, lower-portion placement, rotational relative movement, and the folded-state inter-wall space behavior.
Stated Advantages
The overlapping blocking walls form a double blocking wall that fully blocks the cross-section of a needle-receiving space.
Prevents the distal end of the needle from moving downward from the double blocking wall.
Prevents the needle distal end from being exposed.
Addresses a prior-art issue where a lower wall could be caught and fail to block an opening.
Documented Applications
Not explicitly described in patent.
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