• 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:
    needle liner remover set. the invention relates to a needle casing remover comprising a cap (10) removably attached to a compartment of a medication delivery device, a casing pickup (20) connected to said cap and configured to be coupled to a needle liner (42) of a medicament container positioned (46) within said medicament delivery device, wherein the cap and liner pickup are axially movable with respect to each other and where the liner pickup and the cover are configured to interact with each other in such a way that upon removing the cover from the compartment, the liner pickup is able to engage and remove said needle liner.
    公开号:BR112014000197B1
    申请号:R112014000197-9
    申请日:2012-06-15
    公开日:2021-03-23
    发明作者:Anders Boström
    申请人:Shl Medical Ag；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a kit for the safe and easy removal of needle coatings from drug delivery devices. BACKGROUND
    [0002] Many drug delivery devices on the market have been developed for drug self-administration, where a large group is that of drug injection devices. Many of these injection devices have been fitted with removable needle cover assemblies, where the core cover is a needle cover.
    [0003] These linings are arranged to protect an injection needle prior to use, in order to keep the needle sterile and also to protect the user against unintentional needle sticks. The liners are pushed towards the neck portion of a medication container, such as a syringe or cartridge, during assembly of the container, needle and liner. The coating is preferably made of a resilient material, usually rubber, which ensures firm compression and a good seal between the external environment and the syringe. However, this firm compression also means that it is relatively difficult to remove the coating from the syringe for an injection.
    [0004] Therefore, a number of coating removal devices have been developed, which are designed to assist the user in removing the coating. WO2010089589 and EP2021067 reveal different solutions to this problem.
    [0005] WO2010089589 describes a device in which an autoinjector compartment comprises an axially extending protrusion positioned to interfere with axially extended finger cam surfaces of a needle liner removal means. During axial separation, interference from the cam surfaces and the projection force the fingers to flex radially inward to grasp a needle casing of the autoinjector. This solution has the disadvantage of having the projection integrated with the compartment, that is, stationary, as the needle casing moves axially in relation to the compartment. If the fingers do not obtain a good grip until the cam surfaces fully enter the narrow passage formed by the protrusion of the compartment, the liner may refuse to move and the fingers will slide. The liner remover also runs the risk of getting stuck due to the mismatch of tolerance that can cause the passage of the protrusion / compartment to be too narrow for the cam surfaces to be able to enter it. In addition, the proposed design of the auto-injector compartment is very complicated to manufacture.
    [0006] EP2021057 describes a cap for an injection device comprising a first part with an adhesive means for engaging the rear surface of a needle liner with a neck portion of a medicament container. Upon assembly of the device, the first part is attached to the front end of the injection device in such a way that the adhesion means engage the engagement behind the needle casing. A second part is subsequently attached to the first part to prevent the adhesion means from disengaging from the rear surface of the coating.
    [0007] Adhering behind the needle liner is difficult, as the tolerances for assembling the needle liners and liners are not very accurate. If, during assembly of the liner, needle and container, the liner is pushed away from the neck portion of the container, there may not be enough space for the fingers of the adhesion means to engage behind the liner. In addition, the adhesion is not very firm, as it depends only on the adhesion means that flex radially behind the coating and which are then blocked by the second part. There is no force to compress the coating during removal. Therefore, such a solution would risk losing its grip on a soft rubber needle coating.
    [0008] An additional disadvantage is that as the user tries to remove the cap and liner from the injection device, he will have to overcome the friction between the cap and the device, as well as the friction between the liner and the needle at the same time. It can be difficult for users with weak hands, or for users with impaired manual dexterity, to overcome the accumulated strength of the two friction interfaces.
    [0009] Therefore, there is a need for a device that can safely remove a needle liner from a needle regardless of the tolerances of the container or liner. The device must also require little resistance to removal and must be simple to manufacture. SUMMARY
    [0010] According to the main aspect of the invention, it relates to a needle casing removal set for use in a drug delivery device, axially elongated in a near and distal direction, comprising a cap configured to be removably attached to a compartment of a medication delivery device, a liner pickup connected to said cap and configured to be engageable with a needle liner of a medication container positioned within said medication delivery device, wherein said cap and said liner pickup are axially movable to each other and wherein said liner pickup and said lid are configured to interact with each other in such a way that by removing the lid from the compartment, said liner pickup is able to engage and removing said needle liner.
    [0011] According to another aspect of the invention, said coating pickup comprises the second stop means and the engagement means, and the cap comprises the second locking means and driving means.
    [0012] According to a further aspect of the invention, said cap is coaxially movable with respect to the coating pickup, preferably in which the movement of the coating pickup is limited by the interaction between the driving means and the engaging means, in such a way that the pickup is prone to engage the liner and where the movement of the lid in relation to the liner pickup is limited by the interaction between the second locking means and the second stop means, such that the lid, the pickup and the liner can be removed from the device.
    [0013] In accordance with yet another aspect of the invention, the cap comprises an outer tubular member and an inner coaxial tubular member.
    [0014] According to a further aspect of the invention, said outer tubular member and the inner tubular member are integrally arranged or joined by a generally annular cross wall, which extends between the proximal ends of the inner and outer tubular members.
    [0015] According to another aspect of the invention, the casing pickup is arranged coaxially and is slidable within the inner tubular member of the lid.
    [0016] According to a further aspect of the invention, said coating pickup further comprises the first stop means, and wherein said cover further comprises a guide means and the first lock means arranged for said guide means.
    [0017] According to yet another aspect of the invention, said first stop means is slidably arranged for said guide means and configured to interact with said first locking means to retain the coating pickup inside the cover.
    [0018] According to a further aspect of the invention, said second stop means is a cross member, wherein said engagement means comprises at least two radially elastic flexible arms extending longitudinally from said cross member, and wherein said first stop means is an integral flexible locking member with, or attached to, at least two radially elastic flexible arms.
    [0019] According to another aspect of the invention, each of at least two of the radially elastic flexible arms comprise hooks or edges, grooves and / or protrusions radially directed inward to improve friction and / or connection between the engaging means and the casing. needle.
    [0020] According to a further aspect of the invention, said second locking means consists of at least two longitudinally extending edges on the inner circumferential surface of the inner tubular member.
    [0021] According to yet another aspect of the invention, the guide means consists of at least two grooves or ridges that extend longitudinally on the inner circumferential surface of said inner tubular member and in which the first locking means is in the form of a distally directed surface or a shoulder disposed inside or integrally in each of at least two longitudinally extending grooves or ridges.
    [0022] In accordance with a further aspect of the invention, the drive means is configured as a variety of radially protruding fins, longitudinally elongated, equally spaced around the inner circumferential surface of the inner tubular member, in which the fins are in the form of a ramp, such that the sloping edges of the fins tilt from the inner surface of the inner tubular member towards the distal end of said inner tubular member.
    [0023] According to another aspect of the invention, the fins project to a predetermined height at a predetermined distance from the distal end of the inner tubular member, and in which said height and distance are adapted to the configuration of the engagement means to drive said engagement means. engage radially inward and thereby obtain maximum engagement force between the engagement means and the needle liner when the cap is coaxially movable with respect to the liner pickup.
    [0024] According to a further aspect of the invention, the second stop means is positioned at a predetermined distance from the second lock means when the lid is attached to the device and when the second stop means and the second lock means touch each other when the cover is coaxially moved with respect to the pickup by a predetermined distance, in such a way that the cover impels the casing pickup to move axially.
    [0025] The present invention has several advantages. The relative movement capability between the cover and the coating remover allows the grip on the coating to be increasingly tightened, as a user pulls the cover from the compartment, to a point where the cover begins to pull the coating remover, and consequently the coating, of the needle, at which point the grip is at its strongest point. The coating remover set will continue to adhere to the coating throughout the removal process - in fact, even after the coating has been completely removed.
    [0026] In this way, since the adhesion means and the lid are connected together and the pusher member is also part of the remover assembly, the adhesion force will remain strong throughout the process. The remover set also does not run the risk of being stuck in the compartment due to the mismatch of tolerance.
    [0027] In addition, as the user pulls the cover, the cover will first become loose from the compartment. The cap will then engage the liner remover and liner to remove the latter from the needle.
    [0028] Consequently, removing the cap and needle casing is divided into two stages, such that the frictional force between the cap and the compartment is overcome in the first stage, followed by overcoming the frictional force between the casing and the needle in the second stage. stage. Therefore, the cap and needle liner are easy to remove, even for users with weak hands or impaired manual dexterity.
    [0029] The experiments also showed that the coating remover set is capable of removing a rigid needle protector (RNS) from a needle. A rigid needle protector is characterized by the fact that the soft rubber lining is surrounded by a hard metal or plastic casing. BRIEF DESCRIPTION OF THE DRAWINGS
    [0030] In the following description of embodiments of the invention, reference will be made to the accompanying drawings, of which: Figure 1 is a perspective view of an exemplary embodiment of the present invention when mounted on a drug delivery device. Figure 2 is an enlarged perspective view of an exemplary embodiment of the device shown in Figure 1. Figure 3 is an enlarged cross section of an exemplary embodiment of the present invention. Figures 4A and 4B are cross sections showing the principle of operation of the present invention. DETAILED DESCRIPTION
    [0031] The embodiments of the present invention will now be described in detail. As should be noted in the present application, when the term "distal part / end" is used, it refers to the part / end of the release device, or the parts / ends of the limbs of the same, which is / are located (s) more distant from the patient's medication delivery site. Correspondingly, when the term "proximal part / end" is used, it refers to the part / end of the release device, or to the parts / ends of the limbs of the same, which is / are located closest to the site release of medication from the patient.
    [0032] According to a main aspect, the invention relates to a needle coating remover set for use in a drug delivery device, axially elongated in a proximal and distal direction, comprising a lid configured to be removably attached to a compartment of a medication delivery device, a liner pickup connected to said cap and configured to be coupled to a needle liner of a medication container positioned in said medication delivery device, wherein said cap and the said liner pickup are axially movable in relation to each other and in which said liner pickup and said lid are configured to interact with each other in such a way that after removal of said liner cover, said liner pickup is able to engage and remove the needle casing.
    [0033] An exemplary embodiment of the present invention is shown in Figures 1-4. Figure 1 is a perspective view of a drug delivery device 30 that extends along a longitudinal axis Z and has a proximal end and a distal end. In the text below, references will be made to the longitudinal axis Z. Terms such as axial, axially, longitudinal, longitudinally, coaxial, along an axis or around an axis all refer to movements and / or positions in relation to the longitudinal axis Z .
    [0034] Likewise, the reference to a radial inward or radial outward direction is intended to mean a direction orthogonally close or orthogonally away from the longitudinal axis Z, respectively.
    [0035] The exemplary delivery device in Figure 1 is an autoinjector, but in practice it could be any type of delivery device that has a needle coating that must be removed before administering its contents.
    [0036] The figures show a soft needle liner, for example, rubber, but the liner could also be a rigid needle protector (RNS), in which a rigid liner, for example, plastic or metal, securely surrounds a soft liner.
    [0037] The device shown in Figure 1 comprises a compartment 32 (Figure 2) to whose proximal end is attached a coating remover assembly according to the present invention. The liner remover assembly comprises a lid 10, removably attached to the compartment, and a liner pickup 20. The liner 10 and liner pickup 20 are mechanically connected, but movable in relation to each other along the longitudinal axis Z within certain limits, as will be explained below.
    [0038] Figure 2 illustrates an enlarged perspective view of the embodiment of Figure 1. The release device is shown to comprise a compartment 32, an extendable needle guard 34, a container holder 36 and a power supply 38. A container of medicine 46, containing a medicine and a plug 48, can be accommodated in the container holder 36. A needle (not shown) is attached to a proximal end of the medicine container 46. The needle is covered, in turn, by a needle casing 42. The needle casing is preferably made of a soft, flexible, elastic material, for example, rubber.
    [0039] Also shown in Figure 2 is the coating remover assembly, comprising the lid 10 and the coating pickup 20. In Figure 2, the cover and pickup are shown in a disassembled state. When the device is released to a user, the cover and pickup are mounted and attached to the proximal end of the compartment 32, as shown in Figure 1, such that the cover and the pickup liner can interact to engage and remove the liner from needle 42 of the needle when the user removes the cover of the release device by pulling it proximally in relation to the compartment, as will be explained below.
    [0040] Figure 3 shows a detailed view of an enlarged cross section of the coating remover assembly. The cap 10 comprises an outer tubular member 11 and an inner coaxial tubular member 12, which are integrally arranged, or joined, by a generally annular cross wall 16, which extends between the proximal ends of the inner and outer tubular members. In this way, the proximal end of the inner tubular member 12 is opened, such that it can receive the coating pickup 20 by mounting the cover and the coating pickup. In Figure 3, the annular transverse wall is substantially dome shaped, but it could also be of any other shape without affecting the functionality of the present invention. When assembled, the liner pickup 20 is coaxially and slidably disposed within the inner tubular member 12 of the lid.
    [0041] In the exemplary embodiment, the inner circumferential surface of the inner tubular member 12 of the cap further comprises the first locking means 14, the second locking means 17 and the thrusting means 18, which are configured to interact with the first stop means 21, the second stop means 24 and engagement means 22, respectively, comprised by the coating pickup.
    [0042] The first stop means 21 of the casing pickup, in the exemplary embodiment of Figure 3, is in the form of locking members integral with, or attached to a proximal part of the engaging means 22, such that said locking members are resiliently flexible in a radial direction, but substantially rigid in a longitudinal direction. In the assembled device, the first stop means 21 is slidably disposed on a guide means 15 and configured to interact with the first lock means 14 to retain the liner pickup 20 in the lid 10.
    [0043] The second stop means 24 of the casing pickup is a cross member and can be configured in the shape of a cross wall part configured in such a way that said cross wall part can be accommodated within the inner tubular member 12 of the cap 10. The engagement means 22 extends distally from a distal surface of said transverse wall part. The engagement means 22 may, for example, comprise at least two radially elastic flexible arms extending longitudinally from the cross member, equally spaced along a peripheral edge of the distal surface of said first stop means 21 and configured to be flexible in a radial direction. The first stop means 21 can be flexible locking members integral with, or attached to at least two of the radially elastic flexible arms. A distal part of the engagement means 22 is arranged with adhesion structures for improved friction between the engagement means and the needle liner 42 during a liner removal operation. For example, each of at least two radially elastic flexible arms may comprise hooks or edges, grooves and / or protrusions radially directed inward to improve friction and / or connection between the engaging means and the needle liner 42.
    [0044] The first locking means 14 is disposed at a proximal end of a guide means 15. The first locking means can be in the form of a distally directed surface, for example, a shoulder, disposed inside or integrally in the middle of guide. The guide means can be configured as at least two longitudinal grooves extending distally from the proximal end of the inner circumferential surface of the inner tubular member 12, such that the first stop means 21, for example, the locking members , can be slidably arranged in said grooves. It would also be possible to use ridges or edges instead of grooves. In such a case, it would obviously be necessary to modify the locking members, the first locking means and the second stopping means to be able to interact with a ridge instead of a groove, however such modifications are within the ability of a skilled person in the technique.
    [0045] When the cover and the liner pickup are positioned in such a relationship that a proximally directed surface of the first stop means 21 of the liner pickup abuts the distally directed surface of the first locking means 14 of the cover, the set of coating remover is defined as being in a first state.
    [0046] The second locking means 17 is also disposed on the inner circumferential surface of the inner tubular member 12, for example, in the shape of at least two longitudinally extending edges. A proximal end of the second locking means is configured with a proximally directed shoulder at a predetermined distance from the proximal end of the inner tubular member. When the cover and the liner pickup are positioned in a mutual relationship such that a distally directed surface of the second stop means 24 of the liner pickup abuts the proximally directed shoulder of the second locking means 17 of the cover, the set of coating remover is defined as being in a second state.
    [0047] The cap is coaxially movable with respect to the coating pickup, preferably when the movement of the coating pickup is limited by the interaction between the driving means 18 and the engaging means 22, such that the pickup is driven to engage the coating 42 and where the movement of the lid relative to the liner pickup is limited by the interaction between the second locking means 17 and the second stop means 24, such that the lid, the pickup and the liner can be removed from the device .
    [0048] The second stop means 24 is positioned at a predetermined distance from the second stop means 17 when the lid is attached to the device, such that the second stop means and the second stop means touch each other when the stop is coaxially moved relative to the pickup at said predetermined distance, such that the cover pushes the casing pickup to move axially.
    [0049] The distal part of the inner tubular member 12 is arranged with the driving means 18. In the exemplary embodiment of Figure 3, the driving means is configured as a variety of radially protruding fins, longitudinally elongated, equally spaced along the inner circumferential surface of the internal tubular member. The fins are in the shape of a ramp, such that the sloping edges of the fins slope from the inner surface of the inner tubular member towards the distal end of said inner tubular member, to a predetermined height at a predetermined distance from the distal end of the inner tubular member. Said height and distance are adapted to the configuration of the latching means 22 to propel said latching means radially inward and, thus, to obtain a maximum latching force between the latching means and the needle liner 42 when the cap is coaxially relative to the casing pickup. The angle between the sloping edges of the fins and the inner surface of the inner tubular member is preferably less than 45 degrees.
    [0050] The function of the protector remover set will now be described together with Figures 4A and 4B. After fabrication, the component parts of the device are assembled. For the liner remover assembly, this means inserting the liner pickup 20 into the inner tubular member 12 of the cap 10. The liner pickup is aligned with the cap in such a way that the first stop means 21 enters the guide means 15 when pushing the liner pickup distally with respect to the lid until the first stop means breaks beyond the first locking means 14. The lid and liner remover are then mechanically connected and axially movable in mutual relationship between the first state and second state, as described above. The cover and the coating remover are rotationally locked around the axis in relation to each other, since the first stop means 21 protrudes into the groove of the guide means 15. In the first state, the proximal surface of the second stop means stop 24 can be flush with the proximal surface of the lid, as shown in Figure 1.
    [0051] When a medicament container 46 with a needle 44 and a needle liner 42 has been loaded onto the release device 30, the liner remover assembly can be mounted on the release device in such a way that the liner remover assembly covers the needle coating. During assembly, as the assembly is pushed distally from the release device and the liner, the engagement means 22 is slightly forced radially outward by the needle liner, such that a slight pressure, i.e. , friction or connection, is obtained between the engagement means and the needle liner 42. During this movement, the first stop means 21 abuts the first lock means 14. At the end of the assembly movement, a distal part of the tubular member outer 11 engages a proximal part of compartment 32, such that a mechanical connection is established between the liner remover assembly and the compartment. In the exemplary embodiment, the connection is frictional and can be broken simply by pulling the cover and the compartment separately, however other forms of connections are conceivable, for example, a threaded connection or a bayonet coupling. It is important to note that, in the first state, a pivoting movement of the coating remover assembly around the axis would not rotate the coating, since the pickup is not compressing the coating.
    [0052] The drug delivery device is thus released to the user with the coating remover set mounted to the device in the first state, as shown in Figure 1 and Figure 4A.
    [0053] To prepare the device for drug delivery, the user needs to remove the needle liner 42 from the needle 44. This is done by the user by pulling the cap 10 proximally to the compartment 32. As the frictional force between the cap and the compartment is overcome, the lid starts to move proximally in relation to the compartment.
    [0054] Initially, due to the slight friction / connection between the engagement means 22 and the needle liner 42, the liner pickup 20 is not axially displaced by the cap, but remains stationary in relation to the compartment. When the push means 18 of the cap makes contact with the pickup engaging means, the interaction between the push means and the engaging means therefore engages the engaging means between the driving means and the needle liner, and forces the flexible engagement means radially inward, increasing the radial pressure on the needle casing to engage it. In the exemplary embodiment, this is illustrated by the arms of the engagement means rising up the ramps of the driving means, while at the same time the adhesion structures of the engagement means penetrate the relatively soft rubber material of the needle liner.
    [0055] As the liner remover assembly reaches the second state, the second stop means 24 is placed in contact with the second lock means 17. At that point, the engagement means has reached a maximum engagement with the needle liner. This is exemplified by the adhesion structures of the coupling means in Figure 4B being aligned with the maximum predetermined height of the fins. Once the second stop means and the second lock means touch, the cover and the coating pickup are now stationary with respect to each other.
    [0056] Hypothetically, if the drive means were allowed to pass through the adhesion structures of the exemplary embodiment, the arms of the engagement means would risk flexing radially outward again, thereby decreasing the grip on the needle casing. Therefore, the maximum height of the drive means is arranged at a predetermined distance from the proximal end of the second locking means 17 equal to the longitudinal length of the engaging means, such that the exemplary adhesion structures rest in maximum engagement with the liner. needle in the second state of the liner remover set.
    [0057] Therefore, as the user continues to pull the cap, the interaction between the second stop means and the second lock means forces the liner remover assembly to continue the movement as a unit, i.e. the liner pickup. starts to move together with the cover in relation to the release device. Since the engagement between the liner pickup and the needle liner is strong at that point, the needle liner is forced to move together with the liner remover assembly. As the needle liner is removed from the needle, the device is ready for drug delivery.
    [0058] In other words, the cover is coaxially movable with respect to the coating pickup in a proximal direction, while the movement of the coating pickup is limited by the interaction between the driving means and the engaging means, such that the pickup is driven to engage the casing and movement of the cover in relation to the casing pickup is limited by the interaction between the second locking means and the second stopping means, such that the cap, the pickup and the casing can be removed from the device when pulled in a proximal direction.
    [0059] The second stop means is positioned at a predetermined distance from the second stop means when the cover is attached to the device so that the second stop means and the second stop means touch each other when the cover is coaxially moved. proximal to the pickup at said predetermined distance, such that the cover impels the casing pickup to move axially in the proximal direction.
    [0060] Although the invention has been illustrated and described in detail in the drawings and description above, such illustration and description should be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications can be made by those with common knowledge in the scope of the following claims. In particular, the present invention covers additional embodiments with any combination of characteristics of different embodiments described above and below.
    [0061] Furthermore, in the claims the word "comprising" does not exclude other elements or steps, and the indefinite article "one" or "one" does not exclude a plurality. A single unit can serve the functions of several characteristics mentioned in the claims. The terms "essentially", "about", "approximately" and the like, with respect to an attribute or a value, particularly also define exactly the attribute or exactly the value, respectively. Any reference signs in the claims should not be construed as limiting the scope.
    权利要求:
    Claims (12)
    [0001]
    Needle liner remover set for use in a drug delivery device, axially elongated in a proximal and distal direction, comprising - a lid (10) comprising a second locking means (17) and pushing means (18), said lid (10) being configured to be removably attached to a compartment (32) of a medication delivery device , - a liner pickup (20) comprising a second stop means (24) and latching means (22), said liner pickup (20) being connected to said cover (10) and configured to be coupled to a liner of needle (42) of a medication container (46) positioned within said medication delivery device characterized by the fact that said cover (10) and said coating pickup (20) are axially mobile in relation to each other and in which said coating pickup and said cover are configured to interact with each other in such a way that upon removing the compartment cover (32), said liner pickup (20) is able to engage and remove the needle liner (42), and said cover (10) is coaxially movable with respect to the coating pickup (20), in which the movement of the coating pickup (20) is limited by the interaction between the driving means (18) and the engaging means (22) , in such a way that the pickup is driven to engage the liner (42) and in which the movement of the lid in relation to the liner pickup is limited by the interaction between the second locking means (17) and the second stopping means (24 ) in such a way that the cover, the pickup and the casing can be removed from the device, and wherein the second stop means (24) is positioned at a predetermined distance from the second stop means (17) when the lid is attached to the device and where the second stop means and the second stop means touch each other when the cap is coaxially moved with respect to the pickup at said predetermined distance, such that the cap drives the casing pickup to move axially.
    [0002]
    Needle liner removal assembly according to claim 1, characterized in that the cap (10) comprises an outer tubular member (11) and an inner coaxial tubular member (12).
    [0003]
    Needle liner removal assembly according to claim 2, characterized in that said outer tubular member and said inner tubular member are integrally arranged, or joined, by a generally annular cross-wall (16), which extends between the proximal ends of the inner and outer tubular members.
    [0004]
    Needle liner removal assembly according to claim 2 or 3, characterized in that the liner pickup (20) is arranged coaxially and slidably within the inner tubular member (12) of the cap.
    [0005]
    Needle liner removal assembly according to claim 4, characterized in that the liner pickup (20) further comprises first stop means (21), and wherein said cap (10) further comprises guide means (15) and first locking means (14) arranged for said guide means (15).
    [0006]
    Needle liner removal assembly according to claim 5, characterized in that said first stop means (21) is slidably arranged to said guide means (15) and configured to interact with said first means lock (14) to retain the liner pickup (20) in the cover (10).
    [0007]
    Needle lining removal assembly according to claim 5 or 6, characterized in that said second stop means (24) is a cross member, wherein said latch means (22) comprises at least two arms radially elastic flexible members extending longitudinally from said cross member, and wherein said first stop means (21) are flexible locking members integral with or attached to at least two radially elastic flexible arms.
    [0008]
    Needle lining removal assembly according to claim 7, characterized in that each of at least two of the radially elastic flexible arms comprises hooks or edges, grooves and / or protrusions directed radially inward to improve friction and / or connection between the coupling means and the needle casing (42).
    [0009]
    Needle liner removal assembly according to any one of claims 2 to 8, characterized in that said second locking means (17) has at least two edges that extend longitudinally over the inner circumferential surface of said tubular member internal (12).
    [0010]
    Needle liner removal assembly according to any one of claims 5 to 9, characterized in that the guide means (15) is at least two grooves or ridges that extend longitudinally over the inner circumferential surface of said tubular member internal (12) and in which the first locking means (14) is in the form of a distally directed surface or a shoulder disposed inside or integrally in each of at least two of the longitudinally extending grooves or ridges.
    [0011]
    Needle lining removal assembly according to any one of claims 2 to 10, characterized in that the drive means (18) is configured as a variety of radially protruding, longitudinally elongated fins equally spaced around the inner circumferential surface of the inner tubular member (12), in which the fins are in the shape of a ramp, such that the sloping edges of the fins tilt from the inner surface of the inner tubular member towards the distal end of said inner tubular member.
    [0012]
    Needle lining removal assembly according to claim 11, characterized in that the fins project to a predetermined height at a predetermined distance from the distal end of the inner tubular member, and in which the said height and distance are adapted to the configuration of the latching means (22) to propel said latching means radially inward and thus obtaining a maximum latching force between the latching means and the needle liner (42) when the cap is coaxially movable with respect to the coating pickup.
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    CN103764207B|2016-05-11|
    KR101638261B1|2016-07-08|
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    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-02-27| B25A| Requested transfer of rights approved|Owner name: SHL MEDICAL AG (CH) |
    2020-04-07| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-29| B09A| Decision: intention to grant|
    2021-03-23| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/06/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161504555P| true| 2011-07-05|2011-07-05|
    SE1150630|2011-07-05|
    US61/504,555|2011-07-05|
    SE1150630-0|2011-07-05|
    PCT/SE2012/050655|WO2013006119A1|2011-07-05|2012-06-15|Needle sheath remover assembly|
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