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1.发明授权公开(公告)号：US12029869B2
公开(公告)日：2024-07-09
申请号：US17472346
申请日：2021-09-10
发明人： Rishi Baid
CPC分类号： A61M25/0606 , A61M5/3273 , A61M25/0097 , A61M39/06 , A61M2025/0078 , A61M25/0618 , A61M2039/062 , A61M2039/064
摘要： The invention relates to an intravenous catheter apparatus comprising: a catheter hub arranged at a proximal end of a catheter tube, the catheter hub having an inner surface defining a chamber; a needle defining an axial direction and having a needle tip, the needle extending through the chamber and the catheter tube when in a ready position; a needle guard slidably arranged on the needle and at least partially received in the chamber when the needle is in the ready position, the needle guard including a base portion and first and second arms extending from the base portion, wherein the first arm is deflected radially outwards by the needle against a restoring force when the needle is in the ready position whereby the needle guard is brought into retaining contact with the catheter hub; and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.
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公开(公告)号：US10751512B2
公开(公告)日：2020-08-25
申请号：US15029996
申请日：2014-10-13
发明人： Rishi Baid
摘要： An intravenous (IV)catheter apparatus comprising: a tubular catheter (10) having a proximal end (50) and a distal end (16) mounted to a catheter hub (40); a needle (12) defining an axial direction (A) having a needle shaft (22) with a needle tip (14) at a distal end (16) and a needle hub mounted to the proximal end (50) of the needle shaft (22); a needle guard (30) arranged movably on the needle shaft (22), wherein said needle shaft (22) extends through said tubular catheter (10) such that said needle tip (14) of said needle (12) protrudes from said distal end (16) of said tubular catheter (10); and wherein said needle shaft (22) is provided with: an engagement means (26) adapted to engage with the said needle guard (30) in order to prevent said needle guard (30) from sliding off said needle tip (14); and one or more lateral openings (28) covered by said tubular catheter (10).
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公开(公告)号：US20220000517A1
公开(公告)日：2022-01-06
申请号：US17432789
申请日：2020-02-20
发明人： Rishi Baid , Raunak Gupta
IPC分类号： A61B17/34
摘要： A safety introducer needle assembly having an introducer needle defining an axial direction, the needle having an outer surface and an inner surface defining a lumen which extends along the length of the needle in the axial direction; the outer surface defined by a wall of the needle forming a needle shaft that extend along the axial direction having a distal end and a proximal end, wherein the proximal end connected to a needle hub and the distal end comprising a sharp bevelled tip wherein the needle has a roughened or echogenic region having echogenic features; and a needle tip protector housed in a safety barrel and slidably arranged on the needle shaft from moving beyond the needle tip and wherein the safety barrel is engageably attached to the needle hub.
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5.发明申请公开(公告)号：US20210402154A1
公开(公告)日：2021-12-30
申请号：US17472346
申请日：2021-09-10
发明人： Rishi Baid
摘要： The invention relates to an intravenous catheter apparatus comprising: a catheter hub arranged at a proximal end of a catheter tube, the catheter hub having an inner surface defining a chamber; a needle defining an axial direction and having a needle tip, the needle extending through the chamber and the catheter tube when in a ready position; a needle guard slidably arranged on the needle and at least partially received in the chamber when the needle is in the ready position, the needle guard including a base portion and first and second arms extending from the base portion, wherein the first arm is deflected radially outwards by the needle against a restoring force when the needle is in the ready position whereby the needle guard is brought into retaining contact with the catheter hub; and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.
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公开(公告)号：US10813579B2
公开(公告)日：2020-10-27
申请号：US15849516
申请日：2017-12-20
发明人： Rishi Baid
摘要： The application relates to a blood collection device comprising: a cannula hub defining a chamber; an in-let cannula defining an axis and having a distal end and a lumen extending therethrough, the inlet cannula being mounted to the cannula hub such that the distal end of the inlet cannula is external of the cannula hub and such that the lumen through the inlet cannula communicates with the chamber; an outlet cannula having a proximal end and a lumen extending therethrough, the outlet cannula being mounted to the cannula hub such that the proximal end of the outlet cannula is external of the cannula hub and such that the lumen of the outlet cannula communicates with the chamber; a closed sleeve mounted over a portion of the outlet cannula disposed externally of the cannula hub; and a venting mechanism providing communication between the chamber and ambient surroundings.
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7.发明申请公开(公告)号：US20180311475A1
公开(公告)日：2018-11-01
申请号：US15768754
申请日：2017-01-31
发明人： Rishi Baid
CPC分类号： A61M5/3273 , A61M25/0097 , A61M25/0606 , A61M25/0618 , A61M39/06
摘要： The invention relates to an intravenous catheter apparatus comprising: a catheter hub (12) arranged at a proximal end of a catheter tube (10), the catheter hub (12) having an inner surface (14) defining a chamber (16); a needle (20) defining an axial direction and having a needle tip (24), the needle (20) extending through the chamber (16) and the catheter tube (10) when in a ready position; a needle guard (32) slidably arranged on the needle (20) and at least partially received in the chamber (16) when the needle (20) is in the ready position, the needle guard (32) including a base portion (34) and first and second arms (36, 38) extending from the base portion (34), wherein the first arm (36) is deflected radially outwards by the needle (20) against a restoring force when the needle (20) is in the ready position whereby the needle guard (32) is brought into retaining contact with the catheter hub (12); and wherein the catheter apparatus includes a valve which separates a distal space arranged in distal direction from the valve from a proximal space arranged on proximal direction from the valve. The invention further provides that the valve opens based on a pressure differential between the pressure prevailing in the distal space and the pressure prevailing in the proximal space.
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公开(公告)号：US09950145B2
公开(公告)日：2018-04-24
申请号：US15262425
申请日：2016-09-12
发明人： Rishi Baid
CPC分类号： A61M25/0618 , A61M5/321 , A61M5/3273 , A61M25/0606 , A61M25/0631 , A61M2005/325
摘要： The invention relates a safety IV catheter assembly comprising a catheter tube having a distal end and a proximal end; a catheter hub having a distal end and a proximal end; a needle extending through the catheter hub and the catheter tube having opposite proximal and distal ends defining an axial direction A, wherein the proximal end is joined to the needle hub and the distal end forms a needle tip and a change in profile is provided between the proximal and distal ends of the needle; and a tip protector assembly being arranged movably on the needle in-between the catheter hub and needle hub outside the catheter hub in an arrangement engaging with one or more second locking means provided on the catheter hub in its ready position, wherein the first arm is deflected radially outwards by the needle against a restoring force, wherein the tip protector assembly is configured to entrap the needle tip upon withdrawal of the needle from the catheter hub.
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公开(公告)号：US09636484B2
公开(公告)日：2017-05-02
申请号：US14380358
申请日：2013-02-13
发明人： Rishi Baid
CPC分类号： A61M25/0631 , A61M5/1626 , A61M25/0606 , A61M25/0618 , A61M2210/12
摘要： An intravenous catheter apparatus having a needle having a needle shaft, a needle tip at the distal end of the needle shaft and a needle hub mounted to the proximal end of the needle shaft, an intravenous catheter tube mounted to a catheter hub and a needle guard movable on the needle shaft. The needle guard having a base portion having a needle passage extending in an axial direction from a proximal side of the base portion through the base portion to a distal side of the base portion, first and second arms extending substantially in the axial direction from the distal side of the base portion and a distal wall which is transversely arranged at a distal region of the first arm. A recess is provided in the needle guard that receives a stopping element for stopping movement of the needle shaft relative to the needle guard.
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公开(公告)号：US20170007804A1
公开(公告)日：2017-01-12
申请号：US15248419
申请日：2016-08-26
发明人： Rishi Baid
IPC分类号： A61M25/06
CPC分类号： A61M25/0631 , A61M5/3273 , A61M25/0618 , A61M2005/325
摘要： The invention relates to a needle safety device for a medical device, the needle safety device comprising: a base portion having a bore extending along a longitudinal center axis therethrough for receiving a needle; and two opposing jaws extending from the base portion generally in the axial direction and each having a head portion in the region of its free end, wherein the needle safety device includes a locking projection for securing the needle safety device to the medical device. The needle safety device according to the invention further provides at least one elastic element mounted to the jaws in a non-surrounding manner lateral to the center axis in a region between the base portion and the head portions, wherein at least one elastic element and the jaws are configured such that the jaws can be spread apart against a restoring force of at least one elastic element in order to allow the needle received in the bore to extend all the way through the needle safety device.
摘要翻译： 本发明涉及一种用于医疗装置的针头安全装置，所述针头安全装置包括：基部，其具有沿其纵向中心轴线延伸的孔，用于接收针头; 以及两个相对的夹爪，其大致沿轴向从基部延伸，并且每个在其自由端的区域中具有头部部分，其中针安全装置包括用于将针安全装置固定到医疗装置的锁定突起。 根据本发明的针头安全装置还提供了至少一个弹性元件，该弹性元件在基部和头部之间的区域中以与中心轴线横向的非围绕方式安装到钳口，其中至少一个弹性元件和 夹爪被构造成使得夹爪能够克服至少一个弹性元件的恢复力而分开，以允许容纳在孔中的针一直延伸穿过针安全装置。
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