• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    It is a disposable safe vein transfusion puncture needle comprising a needle head (4), a needle base (3), a jacketed needle sheath on the needle head (4) and a hose (6) in communication with the needle base (3), and which further comprises a plurality of slidable components (1, 2) and a plurality of limiting mechanisms (11, 12, 13, 21, 31, 32), wherein the base needle (3) has a tubular shape, with a stationary end and in communication with the needle head (4) and the other end connected to the hose (6); each of the sliding components (1, 2) having a tubular shape and having two open ends, the plurality of sliding components (1, 2) are jacketed together, the innermost sliding component (1) is jacketed movable way over the needle base (3), and a sum of lengths of the plurality of slidable components (1, 2) in a motion direction is longer than the length of the needle head (4); the limiting mechanisms (11, 12, 13, 21, 31, 32) are arranged in the plurality of slidable components (1, 2) as well as in the needle base (3). By providing a plurality of slidable components (1, 2) jacketed to the needle base (3) in a layered manner, the length of the operational portion of the disposable safe vein transfusion needle becomes shorter, and unfolds if the components are slidable (1, 2) layer by layer in order to shield the needle head (4) during use and after use, the level of safety is increased and the pain felt by the patient is relieved.
    公开号:BR112016021855A2
    申请号:R112016021855-8
    申请日:2015-04-01
    公开日:2020-06-30
    发明作者:Yaling MAO
    申请人:Gemtier Medical (Shanghai) Inc.；
    IPC主号:
    专利说明:

    [001] [001] The present invention relates to an intravenous needle and, in particular, relates to a disposable safe vein transfusion puncture needle. BACKGROUND OF THE INVENTION
    [002] [002] Currently, commonly used disposable intravenous needles need to be jacketed with a needle sheath prior to use in order to prevent the needle head from being bent or collided. During use, when the needle sheath is removed, a risk of puncture injury is easily caused. But the real danger is at the disposal stage after a transfusion is completed, when the needle was removed from the body of a patient who received the transfusion, for disposal of the needle, the needle is placed in a special or covered disposal box with a needle sheath and, as a result, a risk of injury from a puncture is easily caused, which can lead to serious consequences such as infection suffered by medical staff.
    [003] [003] In order to deal with such a defect, some intravenous needles use a retractable needle technical means, in which, after a transfusion is completed, using an elastic force of a structure such as a spring, the needle head becomes retracts into a protective sheath to protect the needle head. As such, although the needle head is effectively protected and the medical staff is prevented from being punctured, however, the patient feels a lot of pain due to the mechanical motion of the needle head retraction.
    [004] [004] On the other hand, when the retractable needle retracts, since the retractable mechanical structure of the needle usually has gaps that can pinch the patient's skin, the patient may experience more pain. DESCRIPTION OF THE INVENTION
    [005] [005] A problem of the technique to be solved by the present invention is that the intravenous needles of the prior art have safety problems and their mechanical motion causes pain felt by the patient, in order to overcome the defects of the prior art and provide a needle of disposable safe vein transfusion puncture that has a better level of safety and causes less pain during mechanical motion.
    [006] [006] The problem of the technique mentioned above is solved by solving the following technique of the present invention: A disposable safe vein transfusion needle comprising a needle head, a needle base, a jacketed needle sheath on the head needle and a hose in communication with the needle base, wherein the disposable safe vein transfusion puncture needle further comprises a plurality of slidable components and a plurality of limiting mechanisms, the needle base has a tubular shape with one end stationary and in communication with the needle head and the other end connected to the hose; each of the sliding components has a tubular shape and has two open ends, the plurality of sliding components are jacketed together, the innermost sliding component is mobile jacketed over the needle base, and a sum of plural lengths of sliding components in a motion direction is longer than the length of the needle head; the limiting mechanisms are arranged in the plurality of sliding components as well as in the needle base and adapted to fix the innermost sliding component in the needle base as well as fixing the plurality of sliding components in each other when the plurality of sliding components slide to completely shield the needle head.
    [007] [007] In this document, the hose is a flexible hose to perform blood transfusion or liquid transfusion that is commonly used in the technique. That is, before use, a plurality of slidable components are jacketed in the needle base in a layered manner, which is a retracted state, and the needle head is exposed, a needle sheath can be jacketed over the needle head to shield the needle head. During use, the needle sheath is removed and blood transfusion is performed and, after that, in the process of removing the needle head, the plurality of tubular sliding components slide to unfold, and are fixed in an end-to-end manner. by the limiting mechanisms provided in the sliding components and the needle base, in order to shield the needle head and prevent the needle head from injuring the operator or the patient. As such, when removing the needle head, it not only ensures safety, but also prevents pain caused by sudden retraction of the needle head in the prior art.
    [008] [008] Furthermore, since the operational portion length (the length of components including the needle base and excluding the hose) of an intravenous needle is at least the length of the needle head plus the length of the needle base, and the needle head length is a standard length that cannot be changed, so the needle base length design becomes the key that determines the length of the operating portion of an intravenous needle. In the present invention, using a structure of multiple slidable components jacketed together in a layered way, in a retracted state (when the needle head is completely exposed),
    [009] [009] Preferably, the disposable safe vein transfusion puncture needle comprises a first movable jacketed slide component in the needle base, and a second mobile jacketed slide member in the first slide member.
    [010] [010] Preferably, the limiting mechanisms comprise a first spring washer, two second spring washers and two third spring washers, the first spring washer is circumferentially attached to an inner wall at one end of the first slide component close to the hose, and one the edge of the first spring washer is gently attached to the inner wall of the first sliding component; the two second spring washers are jacketed and secured to the needle base, the second spring washers are adapted to engage with the first spring washer when the first sliding component and the second sliding component slide to completely shield the needle head or when the head needle is completely exposed, in order to limit the movement of the first sliding component; the third elastic washers are arranged circumferentially respectively on an outer wall of the other end of the first slide component away from the hose as well as circumferentially attached to an interior wall of one end of the second slide component next to the hose, the third elastic washers are adapted to engage with each other when the first slide member and the second slide member slide to completely shield the needle head or when the needle head is fully exposed, in order to limit the movement of the second slide member.
    [011] [011] Preferably, the limiting mechanisms comprise two elastic fasteners and four grooves, one of the elastic fasteners is disposed on the first sliding component and the other elastic fastener is disposed on the second sliding component; two of the grooves are arranged on the needle base and the other two grooves are circumferentially arranged on an outer wall of the first slidable component; the elastic fasteners and the grooves are adapted to engage with each other when the first slide component and the second slide component slide to completely shield the needle head or when the needle head is completely exposed, in order to limit the movement of the first slide component and the second slide component.
    [012] [012] Preferably, the first slide component also has an elastic locking member adapted to extend to prevent the second slide component from sliding back towards the hose when the first slide component and the second slide component slide to completely shield the head needle.
    [013] [013] In this document, when the first slide component and the second slide component unfold, it is necessary to ensure that the needle head is not exposed, so the locking stability between the two slide components is directly related to the safety of use of the intravenous needle. Therefore, an extensible elastic locking member is provided on the outer wall of the first slidable component. When the second slide member has unfolded along the first slide member to a pre-defined position, the elastic locking member extends and, as a result, if the second slide member has a tendency to slide back, the locking member elastic will push against a portion of the edge of the second sliding component, making it unable to slide back.
    [014] [014] Preferably, one end of the second slide component next to the hose has a smooth projection portion arranged circumferentially thereon. This smooth projection portion is adapted to prevent human skin from being pinched in the gap between the first sliding component and the second sliding component when the needle head is being inserted into the human body.
    [015] [015] In this document, since the sliding components and the needle base are jacketed by sliding, there are gaps between the sliding components as well as between the sliding component and the needle base. These gaps tend to pinch the patient's skin during the operation, causing pain felt by the patient. By providing the projection portion, the projection portion will press on the patient's skin during the operation to make the skin slightly recessed, so that the skin adjacent to the part that touches the projection portion is prevented from touching the connecting portion. with gaps between the first sliding component and the second sliding component as well as between the first sliding component and the needle base, thereby preventing the skin from being easily pinched through the gap.
    [016] [016] Preferably, a smooth flat surface is arranged on a lateral side of the second slidable component, and the plane of the smooth flat surface forms an angle of 5º to 20º with an axial line of the needle head.
    [017] [017] Preferably, the second sliding component has a notch arranged on the side with the smooth flat surface, and the notch is in a plane parallel to an axial line of the needle head, one end of the notch extends to an open end of the second component slid away from the hose and the other end of the notch extends to intersect with the smooth flat surface.
    [018] [018] In the present document, in the process of unfolding the first slide component and the second slide component, it is required that the needle head is kept as close as possible to the patient's skin, therefore, if the diameters of the first slide component and of the second sliding component are very large, this requirement cannot be met. By providing the smooth flat surface on the second slide component, the needle head can be placed close to the skin in the process of unfolding the first slide component and the second slide component. By providing the notch in a position where the smooth, flat surface extends close to the axial line of the needle head, the requirement for the needle head to be close to the skin can be additionally fulfilled, thereby relieving the pain felt by the patient. In the meantime, in order to prevent the needle head from accidentally injuring the operator during or after the operation, the needle head should not be placed too close to the notch.
    [019] [019] Preferably, the notch is located at a predefined distance from an axial line of the needle head.
    [020] [020] Preferably, the disposable safe vein transfusion puncture needle additionally comprises a handle, wherein the second slidable component is provided with at least one non-slip area on it;
    [021] [021] In this document, the holding member can additionally prevent the sliding components and the needle base from being removed by sliding. The retaining member can be any barrier structure, for example, annular retaining rings are provided on an outer wall at one end of the needle base near the needle tip and on an outer wall at one end of the first slide component near the tip of needle, two protrusions are provided respectively on an inner wall at one end of the first slide component next to the hose and on an interior wall at one end of the second slide component next to the hose, so that the two protuberances on the interior walls of the first and the second sliding components are attached to the annular retaining rings after unfolding.
    [022] [022] The beneficial enhancement effects of the present invention are: by providing a plurality of slidable jacketed components in the needle base in a layered manner, the length of the operating portion of the disposable safe vein transfusion needle becomes longer short, and unfolding the sliding components layer by layer in order to shield the needle head during use and after use, the safety level is increased and the pain felt by the patient is relieved. BRIEF DESCRIPTION OF THE DRAWINGS
    [023] [023] Figure 1 is a plan view of the disposable safe vein transfusion puncture needle in an unfolded state in a preferred embodiment of the present invention.
    [024] [024] Figure 2 is a plan view of the disposable safe vein transfusion puncture needle in a retracted state in a preferred embodiment of the present invention.
    [025] [025] Figure 3 is a structural diagram of the disposable safe vein transfusion puncture needle in a preferred embodiment of the present invention.
    [026] [026] Figure 4 is another structural diagram of the disposable safe vein transfusion puncture needle in a preferred embodiment of the present invention.
    [027] [027] Figure 5 is a sectional view along line A-A in Figure 1. DESCRIPTION OF ACCOMPLISHMENTS OF THE INVENTION
    [028] [028] The present invention is further described by means of embodiments. However, the present invention is therefore not restricted to the scope of the described embodiments.
    [029] [029] Figure 1 is a plan view of the disposable safe vein transfusion puncture needle in an unfolded state in this embodiment of the present invention, and Figure 2 is a plan view of the disposable safe vein transfusion puncture needle in a retracted state in that embodiment of the present invention. As shown in Figure 1 and Figure 2, the disposable safe vein transfusion puncture needle involved in this embodiment comprises a needle head 4, a needle base 3, a jacketed needle sheath on the needle head 4, and a hose 6 in communication with the needle base 3, where the needle base 3 has a tubular shape with a stationary end and is in communication with the needle head 4 and the other end connected to the hose 6.
    [030] [030] Figure 3 and Figure 4 are structural diagrams of the disposable safe vein transfusion puncture needle in a preferred embodiment of the present invention, and Figure 5 is a cross-sectional view along line AA in Figure 1. shown in Figure 3; in Figure 4 and Figure 5, the disposable safe vein transfusion puncture needle involved in this embodiment additionally comprises a sliding component 1 movably jacketed in the needle base 3, and a sliding component 2 movably jacketed in the sliding component 1 .
    [031] [031] Both the sliding component 1 and the sliding component 2 have a tubular shape with two open ends and are jacketed together. The innermost sliding component 1 is movably jacketed over the needle base 3, and a sum of lengths of the sliding component 1 and the sliding component 2 in a motion direction is longer than the length of the needle head 4.
    [032] [032] An elastic fastener 13, an elastic fastener 21 and a groove 31, a groove 32, a groove 11, a groove 12 are provided as limiting mechanisms on the needle base 3, the slide component 1 and the slide component 2. When the sliding component 1 and the sliding component 2 are in an unfolded or retracted state, the elastic fasteners and the grooves are adapted to engage with each other in order to secure the sliding component 1, the sliding component 2 and the needle base 3 on each other.
    [033] [033] Where the groove 31 and the groove 32 are arranged on the needle base 3, the elastic fastener 13 is arranged on the slide component 1, the groove 11 and the groove 12 are arranged on an outer wall of the slide component 1, and the elastic fastener 21 is arranged on the sliding component 2. The elastic fastener 13, the elastic fastener 21, and the groove 31, the groove 32, the groove 11, the groove 12 are adapted to engage with each other when the sliding component 1 and the slide member 2 slide to completely shield the needle head 4 or when the needle head 4 is completely exposed, in order to limit the movement of the slide member 1 and the slide member 2.
    [034] [034] An elastic locking member 14 is also provided on the slide component 1. This elastic locking member 14 is adapted to extend to prevent the slide component 2 from sliding back towards hose 6 when the slide component 1 and the sliding component 2 slides to completely shield the needle head 4.
    [035] [035] One end of the sliding component 2 near the hose 6 has a smooth projection portion 22 arranged circumferentially thereon. This smooth projection portion 22 is adapted to prevent human skin from being pinched in the gap between the sliding component 1 and the sliding component 2 when the needle head 4 is being inserted into the human body.
    [036] [036] Since the sliding component 1, the sliding component 2 and the needle base 3 are jacketed by sliding, there are gaps between the sliding component 1 and the sliding component 2 as well as between the sliding component 1 and the needle base 3. These gaps tend to pinch the patient's skin during the operation, causing pain felt by the patient. By providing the projection portion 22, the projection portion 22 will press on the patient's skin during the operation to make the skin slightly recessed, so that the skin adjacent to the part touching the projection portion 22 is prevented from touching the gap connection portion between the slidable component 1 and the slidable component 2 as well as between the slidable component 1 and the needle base, thereby preventing the skin from being easily pinched by the gap.
    [037] [037] A smooth flat surface 23 is arranged on a side side of the sliding component 2, and the plane of the smooth flat surface 23 forms an angle of 5 ° with an axial line of the needle head 4. Sliding component 2 has a notch arranged on the side with the smooth flat surface 23, and the notch is in a plane parallel to the axial line of the needle head 4, one end of the notch extends to an open end of the slide component 2 away from the hose 6 and the other end of the the notch extends to cross with the smooth flat surface 23. The distance between the notch and the axial line of the needle head 4 is 0.5 mm.
    [038] [038] The disposable safe vein transfusion puncture needle involved in this embodiment additionally comprises a handle 5, in which the sliding component 2 is provided with at least one non-slip area 24 in it (see Figure 4); the sliding component 1 and the sliding component 2 are produced from elastic material, the elastic fasteners are formed integrally in one piece with the sliding component 1 and with the sliding component 2, and the groove 32 is formed integrally in one piece with the needle base 3; the handle is attached to one end of the needle base 3 connected to the hose 6.
    [039] [039] Before use, the slide component 1 and slide component 2 are jacketed in the needle base in a layered fashion, which is a retracted state, and the needle head 4 is exposed, a needle sheath can be jacketed over the needle head 4 to shield the needle head. During use, the needle sheath is removed and blood transfusion is performed, and afterwards, in the process of removing the needle head 4, the slide component 1 and slide component 2 slide to unfold, and are fixed in a end-to-end mode by the limiting mechanisms (elastic locking member, elastic fastener, etc.) provided in the slide component 1, slide component 2 and the needle base, in order to shield the needle head 4 and prevent the needle injures the operator or the patient. As such, removing the needle head not only guarantees safety, but also prevents pain caused by sudden retraction of the needle head in the prior art.
    [040] [040] In addition, in the process of unfolding the sliding component 1 and sliding component 2, it is required that the needle head 4 is kept as close as possible to the patient's skin, therefore, if the diameters of the sliding component 1 and of the sliding component 2 are too large, this requirement cannot be met. By providing the smooth flat surface 23 on the sliding component 2, the needle head 4 can be placed close to the skin in the process of unfolding the sliding component 1 and the sliding component 2. Providing the notch in a position where the surface smooth plane 23 extends close to the axial line of the needle head, the requirement that the needle head is close to the skin can be additionally fulfilled, thereby relieving the pain felt by the patient.
    [041] [041] In addition, the annular protrusions and retaining rings (not shown in the Figures) are provided as retaining members on the slide component 1 and the needle base, where the annular retaining rings are respectively provided on an outer wall at one end of the needle base next to the needle tip and on an outer wall of one end of the slide component 1 next to the needle tip, two protuberances are provided respectively on an inner wall of one end of the slide component 1 next to the hose and on an inner wall from one end of the sliding component 2 close to the hose, so that the two protuberances on the inner walls of the first and second sliding components are attached to the annular retaining rings after unfolding, thereby preventing the sliding component 1 or the component slide 2 is removed by sliding with a pulling force after the groove is engaged tied with the elastic fastener.
    [042] [042] Although the specific embodiments of the present invention are described above, a person skilled in the art should understand that they are only illustrations, and the scope of protection of the present invention is defined by the appended claims. With the premise of not deviating from the principle and essence of the present invention, a technician in the subject can make several changes and modifications to these implementation achievements. For example, the buckle structure such as elastic fasteners and grooves may not be used and, instead, the sliding components can be attached to the needle base by mutual grasping of elastic washers. These changes and modifications are all within the scope of protection of the present invention.
    权利要求:
    Claims (6)
    [1]
    1. “DISPOSABLE SAFE VEHICLE TRANSFUSION PUNCTURE NEEDLE comprising a needle head (4), a needle base (3), a needle sheath, jacketed in the needle head (4); and a hose (6), in communication with the needle base (3), characterized by the fact that it additionally comprises a plurality of slidable components (1,2); and a plurality of limiting mechanisms (11, 12, 13, 21, 31, 32), wherein the needle base (3) has a tubular shape, with a stationary end and in communication with the needle head (4) and the other end connected to the hose (6); each of the sliding components (1, 2) has a tubular shape and has two open ends, with the plurality of sliding components (1, 2) being jacketed together, the innermost sliding component (1) is jacketed movable way over the needle base (3), and a sum of lengths of the plurality of components slidable in a motion direction is longer than the length of the needle head (4); the limiting mechanisms (11, 12, 13, 21, 31, 32) are arranged in the plurality of sliding components (1, 2) as well as in the needle base (3) and adapted to fix the innermost sliding component (1) in the needle base (3) as well as fixing the plurality of sliding components to each other when the plurality of sliding components slide to completely shield the needle head (4),
    the disposable safe vein transfusion puncture needle comprises a first slide component (1) movably jacketed to the needle base (3) and a second slide component (2) mobile jacketed to the first slide component, the limiting mechanisms comprise two elastic fasteners (13, 21) and four grooves (11, 12, 31, 32), one of the elastic fasteners (13) is arranged on the first sliding component, and the other elastic fastener (21) is arranged on the second sliding component ; two of the grooves (31, 32) are arranged on the needle base, and the other two grooves (11, 12) are circumferentially arranged on an outer wall of the first slidable component; the elastic fasteners and the grooves are adapted to engage with each other when the first slide component and the second slide component slide to completely shield the needle head (4) or when the needle head is completely exposed, in order to limit the movement of the first slidable component and the second slidable component, one end of the second slidable component next to the hose (6) has a smooth projection portion circumferentially arranged thereon.
    [2]
    2. NEEDLE according to claim 1, characterized in that the first slide member also has an elastic locking member adapted to extend to prevent the second slide member from sliding back towards the hose when the first slide member and the second slidable component slides to completely shield the needle head.
    [3]
    3. NEEDLE, according to claim 1, characterized by the fact that a smooth flat surface is arranged on a lateral side of the second slidable component, and the plane of the smooth flat surface forms an angle of 5º to 20º with an axial line of the needle head.
    [4]
    4. NEEDLE, according to claim 3, characterized by the fact that the second sliding component has a notch arranged on the side with the smooth flat surface, and the notch is in a plane parallel to an axial line of the needle head, one end of the notch extends to an open end of the second slidable component away from the hose and the other end of the notch extends to intersect with the smooth flat surface.
    [5]
    5. NEEDLE, according to claim 4, characterized by the fact that the notch is located at a predefined distance from an axial line of the needle head.
    [6]
    NEEDLE according to any one of claims 1 to 5, characterized by the fact that it additionally comprises a handle, in which the second slide component is provided with at least one non-slip area in it; the sliding components are produced from elastic material, the elastic fastener is formed integrally in one piece with the sliding component and the grooves are formed integrally in one piece with the needle base; the handle is attached to one end of the needle base connected to the hose; the limiting mechanisms additionally comprise at least one holding member disposed on the first slide component or on the needle base, adapted to prevent the second slide component or the first slide component from being removed by sliding by means of a pulling force after the groove is engaged with the elastic fastener.
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    US10639455B2|2015-10-28|2020-05-05|Becton, Dickinson And Company|Closed IV access device with paddle grip needle hub and flash chamber|
    JP6336008B2|2015-11-23|2018-06-06|ジェムティア メディカル （シャンハイ） インコーポレイテッド|Needle stick device|
    WO2017088737A1|2015-11-23|2017-06-01|上海金塔医用器材有限公司|Needle puncture device|
    US10238852B2|2016-10-05|2019-03-26|Becton, Dickinson And Company|Septum housing|
    USD819802S1|2016-10-05|2018-06-05|Becton, Dickinson And Company|Catheter adapter|
    USD835262S1|2016-10-05|2018-12-04|Becton, Dickinson And Company|Intravenous catheter assembly|
    USD837368S1|2016-10-05|2019-01-01|Becton, Dickinson And Company|Catheter adapter grip|
    USD844781S1|2016-10-05|2019-04-02|Becton, Dickinson And Company|Needle hub|
    USD885574S1|2018-02-21|2020-05-26|Ethicon Llc|Knitted tissue scaffold|
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    法律状态:
    2020-08-04| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-07-20| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-08-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-11-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    CN201410577644.7A|CN104288866B|2014-10-24|2014-10-24|The anti-acupuncture venous transfusion puncturing needle of single use|
    CN201420621938.0U|CN204181959U|2014-10-24|2014-10-24|The anti-acupuncture venous transfusion puncturing needle of single use|
    CN201420621938.0|2014-10-24|
    CN201410577644.7|2014-10-24|
    PCT/CN2015/075658|WO2016062016A1|2014-10-24|2015-04-01|Disposable anti-acupuncture intravenous infusion puncture needle|
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