公开(公告)号：US20230256206A1

公开(公告)日：2023-08-17

申请号：US18011975

申请日：2021-06-22

Applicant: NIPRO CORPORATION

Inventor： Kaname SADAHIRO ,  Hiroyuki NAKAGAMI ,  Tatsuya KUDO ,  Naoya KATAOKA

IPC: A61M25/06 ,  A61M39/06

CPC classification number: A61M25/0606 ,  A61M39/06 ,  A61M2039/062

Abstract: An outer needle assembly 10 comprises an outer needle 48 wherethrough an inner needle 16 passes, and a passage forming member 50 connected to the outer needle 48 and including a valve body 64 inside such that a first internal space 78 on a distal side of the valve body 64 is longer than a second internal space 79 on a proximal side thereof. A ventilation path 80 for discharging air to an outside communicates with the first internal space 78 near the valve body 64. The first internal space 78 comprises: a puncture part 56 formed in a puncturing portion of the outer needle 48; a tapered part 57 formed on the proximal side of the puncture part 56 with an inner diameter increasing toward the proximal side; and a small-diameter part 89 formed on the proximal side of the tapered part 57 with an inner diameter smaller than or equal to that of a proximal end of the tapered part 57.

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

IPC: A61M5/158 ,  A61M25/06

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.

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

IPC: A61M5/32 ,  A61M5/34

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.

公开(公告)号：US20200038596A1

公开(公告)日：2020-02-06

申请号：US16595176

申请日：2019-10-07

Applicant: Artisan Lab Co., Ltd. ,  Nipro Corporation

Inventor： Kazuhiko SHIBATA ,  Hiroyuki NAKAGAMI ,  Tatsuya KUDO ,  Naoya KATAOKA

IPC: A61M5/32 ,  A61M5/158 ,  A61M1/36 ,  A61M5/00

Abstract: A needle cap and a dialysis circuit priming device with increased safety and convenience in the cleaning and priming of a blood circuit are provided. According to the present invention, a needle cap is provided including two needle connecting parts, and a flow path connecting the two needle connecting parts. A dialysis circuit priming device is also provided including two needles, two needle connecting parts each arranged with the two needles respectively, and a flow path for connecting the two needle connecting parts.

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

IPC: A61M39/06 ,  A61M25/06 ,  A61M39/10

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.

公开(公告)号：US20170209230A1

公开(公告)日：2017-07-27

申请号：US15328421

申请日：2015-07-28

Applicant: NIPRO CORPORATION ,  FINE PRO CORPORATION

Inventor： Hiroyuki NAKAGAMI ,  Takumi MORO

IPC: A61B50/36

CPC classification number: A61B50/362 ,  A61B2050/005 ,  A61M5/3205

Abstract: A syringe needle disposal container for disposing of a syringe needle having a needle holder detachably screw-fitted to an end of a syringe body and a needle body, which includes a lid that covers an opening of a container body and a moving member mounted on the lid so as to be slide-movable. A first holding part for holding one side of needle holder is provided at a predetermined part of the lid. The moving member is formed with a second holding part for holding the other side of the needle holder. An open end of the first holding part on the lid side is deviated toward the first holding part with respect to a reference center axis line L that passes through the center P of a syringe needle holding part in the holding position state and that is substantially perpendicular to a slide-moving direction of the moving member.

公开(公告)号：US20200271232A1

公开(公告)日：2020-08-27

申请号：US16753705

申请日：2018-10-04

Applicant: NIPRO CORPORATION

Inventor： Hiroyuki NAKAGAMI ,  Minami KAWABE ,  Tomoe MORITA ,  Kazunari KAMEI

IPC: F16K11/085 ,  A61M1/36 ,  A61M39/22

Abstract: The flow path switching device includes: a body 100 including an outer cylinder 101 having four ports 111 and a plug 102 having two arc-shaped tunnel-like flow paths 121 each connecting adjacent two of four openings 102a formed in a side surface of the plug 102. The plug 102 is rotatable between a first position and a second position, the first position being a position in which one of the flow paths 121 connects adjacent two of the four ports 111 and the other flow path 121 connects the remaining two ports, and the second position being a position in which each of the flow paths connects adjacent two of the ports 111 which are not connected when the plug 102 is located at the first position.

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

IPC: A61M5/38 ,  A61M39/06 ,  A61M39/26 ,  A61M5/165 ,  A61M5/158

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.

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

IPC: A61M39/26 ,  A61M39/04 ,  A61M5/14

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.

公开(公告)号：US20240023852A1

公开(公告)日：2024-01-25

申请号：US18024382

申请日：2021-09-02

Applicant: SHIMADZU CORPORATION ,  NIPRO CORPORATION ,  HUNDRED CO., LTD.

Inventor： Ippei TAKEUCHI ,  Hiroyuki NAKAGAMI ,  Tatsuya KUDO ,  Takashi ESHIMA ,  Naoyuki KAYAMOTO ,  Makoto MURAKAMI

IPC: A61B5/15

CPC classification number: A61B5/150251 ,  A61B5/15003 ,  A61B5/150213 ,  A61B5/150389 ,  A61B5/15074 ,  A61B2560/0406

Abstract: A novel blood collection instrument with which it is possible to prevent blood from coming into contact with air during collection of blood, and a blood collection plate that is suitably used therefor. A blood collection instrument including: a blood holding member having a structure in which a plurality of plate-shaped members, are overlapped with each other and including a collected blood holding passage formed between overlapped surfaces of the plate-shaped members; a connection part provided at an inflow port of the collected blood holding passage in the blood holding member; and a puncture member including a puncturing hollow needle while being connected to the connection part. An inner hole of the hollow needle of the puncture member is allowed to communicate with the collected blood holding passage in the blood holding member.