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公开(公告)号：US20210138162A1
公开(公告)日：2021-05-13
申请号：US16611744
申请日：2018-05-08
Applicant: NIPRO CORPORATION
Inventor： Hiroyuki NAKAGAMI , Shingo SAKAMOTO
Abstract: A valved needle assembly including a needle hub provided to a proximal end side of a hollow needle, and a valve member incorporated therein for blocking communication with the hollow needle. A protrusion protrudes from a distal end side toward a proximal end side inside the needle hub and the valve member blocks the proximal end side of the protrusion inside the needle hub. A central valve part of the valve member having a slit moves toward the protrusion such that the slit is opened and placed in communication by the protrusion. The central valve part includes a distal end tubular part and a proximal end tubular part extending from its outer circumferential portion toward the distal end side and the proximal end side respectively.
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公开(公告)号：US20190298933A1
公开(公告)日：2019-10-03
申请号：US16465857
申请日：2017-12-04
Applicant: NIPRO CORPORATION
Inventor： Shingo SAKAMOTO , Asumi MINO
IPC: A61M5/32
Abstract: This needle assembly is provided with a needle having a needle tip, a needle hub, and a protector. The protector is displaceable between a non-protection position at which the needle is exposed and a protection position at which the needle tip is covered; has an opening formed elongated to match the needle, and includes a main body and a claw-like portion. The needle enters the main body from the opening to cover the needle tip when the protector is displaced to the protection position. The claw-like portion is bent by the needle when the protector is displaced to the protection position, allows the needle to advance into the protector main body, and is elastically restored to lock the needle when the needle enters the main body. The claw-like portion projects obliquely from the main body, extends across the opening in the width direction, and extends in the longitudinal direction.
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公开(公告)号：US20180043093A1
公开(公告)日：2018-02-15
申请号：US15526832
申请日：2015-11-20
Applicant: NIPRO CORPORATION
Inventor： Hiroyuki NAKAGAMI , Shingo SAKAMOTO , Asumi MINO
CPC classification number: A61M5/158 , A61M5/50 , A61M25/0014 , A61M25/0017 , A61M25/06 , A61M25/0618 , A61M25/065 , A61M25/0693
Abstract: In an indwelling needle assembly, a safety mechanism part is provided with an outer-needle-hub engaging part to be engaged with an outer needle hub, and an engaging-part opposing wall. Relative rotation of the outer-needle-hub engaging part and the engaging-part opposing wall is restricted, and at least one of the outer-needle-hub engaging part and the engaging-part opposing wall displaces integrally with urging parts. When an inner needle is pulled out of the outer needle hub, a block part engaged with the inner needle through an inner-needle engaging part is moved relative to the urging parts and forced to a non-contact state, and the urging parts displace in a direction approaching the inner needle, thereby preventing a needle tip of the inner needle from protruding from the safety mechanism part and releasing engagement of the outer needle hub with the safety mechanism part.
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公开(公告)号：US20250099688A1
公开(公告)日：2025-03-27
申请号：US18712595
申请日：2022-11-22
Applicant: NIPRO CORPORATION
Inventor： Shingo SAKAMOTO
IPC: A61M5/32
Abstract: The needle tip protector is attached to a puncture needle and prevents exposure of a needle tip by being moved to the needle tip side, and includes a first side plate and a second side plate extending from a bottom part located on a needle base side of the puncture needle to the needle tip side, and facing each other while sandwiching the puncture needle from both sides. The first side plate and the second side plate include lateral cover pieces protruding inward in a direction of facing at respective widthwise edges, which are opposite to each other in a plate width direction. With the needle tip protector attached to the puncture needle, the puncture needle is located between the respective lateral cover pieces of the first side plate and the second side plate.
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Patent Agency Ranking
公开(公告)号：US20190262599A1
公开(公告)日：2019-08-29
申请号：US16319937
申请日：2017-08-04
Applicant: NIPRO CORPORATION
Inventor： Hiroyuki NAKAGAMI , Shingo SAKAMOTO , Haruo AKIMOTO , Ryosuke MIYAZAKI
Abstract: A valved needle assembly includes a connector having an inner hole, a pipe body fixed to a tip end of the connector, a valve body, and an assembly part in which an insertion part provided to one of the connector and the pipe body is inserted into another such that the connector is disposed within or about the pipe body. A locking protrusion and a locking part are provided to superposed faces of the connector and the pipe body in the assembly part for preventing the insertion part from dislodgment by mutual lock, and an inclined guide surface for guiding the locking protrusion is formed on a tip end in a direction of assembly of the connector or the pipe body to which the locking part is provided. The valve body is incorporated by being mated with the connector and the pipe body.
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公开(公告)号：US20200254195A1
公开(公告)日：2020-08-13
申请号：US16635219
申请日：2018-08-02
Applicant: NIPRO CORPORATION
Inventor： Hiroyuki NAKAGAMI , Shingo SAKAMOTO
Abstract: A novel hemostasis valve-equipped indwelling needle that is capable of discharging air in an internal flow path includes a cannula to be inserted percutaneously into a blood vessel on a distal end side thereof, a link connector on a proximal end side thereof, an internal flow path extending from the cannula to the link connector, and a hemostatic valve disposed inside the link connector. An air vent passage that allows the internal flow path to communicate with an external space is formed in the link connector further on the cannula side than the hemostatic valve, and a filter that allows gas to pass through but does not allow liquid to pass through is mounted in a compressed state on the air vent passage.
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公开(公告)号：US20170106182A1
公开(公告)日：2017-04-20
申请号：US15300551
申请日：2015-04-07
Applicant: NIPRO CORPORATION
Inventor： Kiyotaka YOSHIOKA , Hiroyuki NAKAGAMI , Shingo SAKAMOTO
CPC classification number: A61M39/26 , A61M5/14 , A61M39/04 , A61M2039/0072 , A61M2039/1072
Abstract: A medical valve which is able to more reliably support an outer peripheral part of an elastic valve body with respect to a housing, and prevent a problem of the elastic valve body becoming dislodged inward. A medical valve includes an elastic valve body with annular grooves formed thereon and a tubular support part formed at an outer peripheral side of an annular joining part positioned between the annular grooves. Inside and outside holding parts engage the annular grooves provided to the valve inside and outside surfaces of the annular joining part. The outside holding part and inside holding part are provided to an opening member, and with the tubular support part, a part projecting inward in an axial direction is sandwiched and supported between the inside holding part and outside holding part.
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公开(公告)号：US20240009406A1
公开(公告)日：2024-01-11
申请号：US18372770
申请日：2023-09-26
Applicant: NIPRO CORPORATION
Inventor： Hiroyuki NAKAGAMI , Shingo SAKAMOTO
CPC classification number: A61M5/385 , A61M5/158 , A61M5/165 , A61M39/0693 , A61M39/26 , A61M2205/7536
Abstract: A novel hemostasis valve-equipped indwelling needle that is capable of discharging air in an internal flow path includes a cannula to be inserted percutaneously into a blood vessel on a distal end side thereof, a link connector on a proximal end side thereof, an internal flow path extending from the cannula to the link connector, and a hemostatic valve disposed inside the link connector. An air vent passage that allows the internal flow path to communicate with an external space is formed in the link connector further on the cannula side than the hemostatic valve, and a filter that allows gas to pass through but does not allow liquid to pass through is mounted in a compressed state on the air vent passage.
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公开(公告)号：US20210113811A1
公开(公告)日：2021-04-22
申请号：US16965266
申请日：2019-01-28
Applicant: NIPRO CORPORATION
Inventor： Hiroyuki NAKAGAMI , Shingo SAKAMOTO , Haruo AKIMOTO
Abstract: A hub assembly with a hub body connected to a tube from an external appliance, a hub outer casing which is coupled to the hub body and forms a liquid passage, a slitted separating wall disposed in the liquid passage in the hub outer casing, a filter disposed on the living body-side of the separating wall to allow the passage of gas and regulate the passage of liquid, and a ventilation passage which communicates between the liquid passage and the outside of the hub outer casing by way of the filter, wherein an end portion of the ventilation passage on the separating wall side of an opening portion facing the liquid passage is in a location at most 10 mm toward the distal end side relative to the distal end of the separating wall.
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