Patents by Inventor Brian Maxfield
Brian Maxfield has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230364351Abstract: The present disclosure concerns an autoinjector sub-assembly having a cap with a tubular housing extending from a proximal closed end to a distal open end and an arm attached to the tubular housing, wherein the arm extends in the axial direction from the distal open end, a syringe holder having a tubular body with a tubular flange attached to the proximal end of the tubular body, the tubular flange having an inner surface facing towards the axis, wherein the arm of the cap is between the axis and the inner surface of the flange of the syringe holder, wherein the arm of the cap has a protrusion extending in the radial direction away from the axis, and wherein the arm of the cap has a protrusion extending in the radial direction towards the axis.Type: ApplicationFiled: October 29, 2021Publication date: November 16, 2023Inventors: Thad Miley, Brian Maxfield, Randall Goldfarb
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Publication number: 20230285674Abstract: A sub-assembly of a medicament delivery device is presented, where the sub-assembly includes a plunger rod that is biased, a main body arranged on the plunger rod, and a coupling member movable relative to the main body, where the main body includes a first locking element, the coupling member includes a second locking element, and where the first locking element and the second locking element are configured to be releasably engaged with each other such that the coupling member is prevented from moving relative to the main body.Type: ApplicationFiled: May 17, 2023Publication date: September 14, 2023Inventors: Sebastian Karlsson, Anders Boström, Brian Maxfield, Mattias Daniel
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Patent number: 11690956Abstract: A sub-assembly of a medicament delivery device is presented, where the sub-assembly includes a plunger rod that is biased, a main body arranged on the plunger rod, and a coupling member movable relative to the main body, where the main body includes a first locking element, the coupling member includes a second locking element, and where the first locking element and the second locking element are configured to be releasably engaged with each other such that the coupling member is prevented from moving relative to the main body.Type: GrantFiled: April 1, 2016Date of Patent: July 4, 2023Assignee: SHL MEDICAL AGInventors: Sebastian Karlsson, Anders Boström, Brian Maxfield, Mattias Daniel
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Publication number: 20230082704Abstract: A dose delivery mechanism and a medicament delivery device are presented having a housing holding a medicament container and a power unit, where the power unit has a plunger rod, a drive spring, operably arranged to act on the plunger rod and on the medicament container. A locking ring is operatively engaged with an actuator having a holding ledge that can releasably hold the plunger rod with the drive spring in a tensioned state, and with an actuator sleeve to form a lock that prevents axially movement of the actuator after dose delivery. The locking ring also cooperates with the actuator to generate an end-of-dose delivery signal. An activator is directly engaged with the actuator to provide a well-defined activation point.Type: ApplicationFiled: December 21, 2020Publication date: March 16, 2023Inventor: Brian Maxfield
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Publication number: 20220387712Abstract: A medicament delivery device is presented having a housing with an inner surface structure, a delivery member cover slidably arranged in the housing, a medicament container housing arranged in the housing, a rotator configured to cooperate with the inner surface structure, the rotator being in axial engagement with the medicament container housing, wherein the delivery member cover is configured to be moved axially from an extended position relative to the housing to a retracted position, thereby causing the rotator to rotate from a first rotator position to a second rotator position, a forward-biased plunger rod extending through the rotator and having a first axial engagement position with the rotator when the rotator is in the first rotator position and in the second rotator position, wherein the rotator has an engagement structure configured to engage with the inner surface structure when the rotator is in the first rotator position to prevent forward movement of the rotator, and wherein the rotator is coType: ApplicationFiled: October 12, 2020Publication date: December 8, 2022Inventor: Brian Maxfield
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Publication number: 20220203034Abstract: A triggering mechanism for a medicament delivery device, wherein the triggering mechanism comprises: a delivery member cover, a rotator, and a delivery member hub, wherein the delivery member cover is configured to move linearly relative to the rotator, wherein the delivery member cover is configured to cause rotation of the rotator when the delivery member cover is moved linearly in a first direction, and wherein the rotator is configured to cause linear movement of the delivery member hub in a second direction opposite to the first direction when the rotator is rotated.Type: ApplicationFiled: April 27, 2020Publication date: June 30, 2022Inventor: Brian Maxfield
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Patent number: 11318259Abstract: A needle shield remover is presented having a generally tubular body with a longitudinal extension and a grip element composed of a braided sleeve arranged to the tubular body, where the braided sleeve has an opening of such a diameter that a needle shield may be introduced, where the diameter narrows such that a friction fit is created between the braided sleeve and the needle shield when said needle shield is pulled for removing the needle shield.Type: GrantFiled: April 23, 2018Date of Patent: May 3, 2022Assignee: SHL MEDICAL AGInventors: Brian Maxfield, Dane Kris, Jason Frost
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Publication number: 20210316074Abstract: A medicament delivery device extends along a longitudinal axis and includes: a generally tubular elongated housing having a proximal and a distal end, where the generally tubular elongated housing is arranged to accommodate a medicament container; a drive unit comprising a drive element and plunger rod operably arranged to act on the medicament container; a tubular element rotatably arranged in relation to the housing and operably arranged to the plunger rod, where the plunger rod includes at least one holding member and where the tubular element includes at least one arm extending generally transversal to the longitudinal axis of the device, wherein the at least one arm is arranged to engage the at least one holding member on the plunger rod to releasable hold the drive unit in an energy accumulated state.Type: ApplicationFiled: June 22, 2021Publication date: October 14, 2021Inventor: Brian Maxfield
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Patent number: 11110230Abstract: A needle shield remover is presented having a generally tubular body with a longitudinal extension and a number of grip elements arranged at a distal area of the body, where the grip elements extend radially inwards from a circumference of the body. At least one longitudinally extending cut-out in the body and adjacent to the grip elements engage an outer surface of a needle shield when the needle shield remover is pushed onto the needle shield, where the at least one cut-out enables a generally radial outwardly bias of the grip elements during the pushing action to facilitate mounting of the needle shield remover on the needle shield.Type: GrantFiled: April 23, 2018Date of Patent: September 7, 2021Assignee: SHL MEDICAL AGInventors: Brian Maxfield, Jason Frost, Dane Kris
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Publication number: 20210228814Abstract: A cap assembly for a medicament delivery device is disclosed. The cap assembly includes a cap configured to be mounted to a proximal end of the medicament delivery device, wherein the cap comprises a cam surface. The cap assembly further includes a squeezer comprising (i) a body defining a first longitudinally extending channel configured to receive a delivery member shield and (ii) a plurality of radial arms flexible in a radial direction. The cap assembly also includes a spinner comprising (i) a proximal end face configured to cooperate with the cam surface of the cap, (ii) a body defining a second longitudinally extending channel configured to receive the squeezer, and (iii) a plurality of holes in the body of the spinner configured to receive the plurality of radial arms of the squeezer.Type: ApplicationFiled: April 16, 2021Publication date: July 29, 2021Inventor: Brian Maxfield
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Patent number: 11071822Abstract: A medicament delivery device extends along a longitudinal axis and includes: a generally tubular elongated housing having a proximal and a distal end, where the generally tubular elongated housing is arranged to accommodate a medicament container; a drive unit comprising a drive element and plunger rod operably arranged to act on the medicament container; a tubular element rotatable rotatably arranged in relation to the housing and operably arranged to the plunger rod, where the plunger rod includes at least one holding member and where the tubular element includes at least one arm extending generally transversal to the longitudinal axis of the device, wherein the at least one arm is arranged to engage the at least one holding member on plunger rod to releasable hold the drive unit in an energy accumulated state.Type: GrantFiled: April 23, 2015Date of Patent: July 27, 2021Assignee: SHL MEDICAL AGInventor: Brian Maxfield
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Patent number: 10980949Abstract: A cap assembly for a medicament delivery device is disclosed. The cap assembly includes a cap configured to be mounted to a proximal end of the medicament delivery device, wherein the cap comprises a cam surface. The cap assembly further includes a squeezer comprising (i) a body defining a first longitudinally extending channel configured to receive a delivery member shield and (ii) a plurality of radial arms flexible in a radial direction. The cap assembly also includes a spinner comprising (i) a proximal end face configured to cooperate with the cam surface of the cap, (ii) a body defining a second longitudinally extending channel configured to receive the squeezer, and (iii) a plurality of holes in the body of the spinner configured to receive the plurality of radial arms of the squeezer.Type: GrantFiled: December 26, 2018Date of Patent: April 20, 2021Assignee: SHL MEDICAL AGInventor: Brian Maxfield
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Publication number: 20210001055Abstract: A needle shield remover is presented having a generally tubular body with a longitudinal extension and a grip element composed of a braided sleeve arranged to the tubular body, where the braided sleeve has an opening of such a diameter that a needle shield may be introduced, where the diameter narrows such that a friction fit is created between the braided sleeve and the needle shield when said needle shield is pulled for removing the needle shield.Type: ApplicationFiled: April 23, 2018Publication date: January 7, 2021Inventors: Brian Maxfield, Dane Kris, Jason Frost
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Publication number: 20200384209Abstract: The present invention relates to a drive mechanism for a medicament delivery device, comprising a plunger rod (54) arranged to act on a stopper (28) arranged in a medicament container (16); a compression drive spring (58) operably connected to said plunger rod (54) and capable of applying a force on said plunger rod (54); a spring guide (78) arranged coaxial with, and radially outside, said compression drive spring (58), capable of preventing buckling of said drive spring, wherein said spring guide (78) comprises a resilient force element (86) capable of applying a force on said medicament container (16).Type: ApplicationFiled: August 13, 2020Publication date: December 10, 2020Inventor: Brian Maxfield
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Patent number: 10758677Abstract: The present invention relates to a drive mechanism for a medicament delivery device, comprising a plunger rod (54) arranged to act on a stopper (28) arranged in a medicament container (16); a compression drive spring (58) operably connected to said plunger rod (54) and capable of applying a force on said plunger rod (54); a spring guide (78) arranged coaxial with, and radially outside, said compression drive spring (58), capable of preventing buckling of said drive spring, wherein said spring guide (78) comprises a resilient force element (86) capable of applying a force on said medicament container (16).Type: GrantFiled: March 23, 2016Date of Patent: September 1, 2020Assignee: SHL MEDICAL AGInventor: Brian Maxfield
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Patent number: 10583255Abstract: The present disclosure relates to a medicament container assembly (11) for a medicament delivery device, comprising: an elongated body (3) configured to receive a medicament container (17) and provided with a radially flexible first gripper arm (3f) extending in the axial direction of the body (3) and an oppositely arranged radially flexible second gripper arm (3g) extending in the axial direction of the body (3), wherein the first gripper arm (3g) and the second gripper arm (3f) are configured to support a neck portion of a medicament container, and a clamp member (13) configured to be arranged radially outside of the first gripper arm (3f) and the second gripper arm (3g), to press the first gripper arm (3f) and the second gripper arm (3g) radially inwards, to prevent proximal displacement of a medicament container.Type: GrantFiled: July 27, 2016Date of Patent: March 10, 2020Assignee: SHL Medical AGInventor: Brian Maxfield
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Publication number: 20200046910Abstract: A needle shield remover is presented having a generally tubular body with a longitudinal extension and a number of grip elements arranged at a distal area of the body, where the grip elements extend radially inwards from a circumference of the body. At least one longitudinally extending cut-out in the body and adjacent to the grip elements engage an outer surface of a needle shield when the needle shield remover is pushed onto the needle shield, where the at least one cut-out enables a generally radial outwardly bias of the grip elements during the pushing action to facilitate mounting of the needle shield remover on the needle shield.Type: ApplicationFiled: April 23, 2018Publication date: February 13, 2020Inventors: Brian Maxfield, Jason Frost, Dane Kris
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Patent number: 10363373Abstract: A medicament delivery device is presented having an elongated housing extending in a longitudinal direction, which housing is arranged to accommodate a medicament container, an end cap arranged with a first attachment element designed to engage with a second attachment element on the housing for attaching the end cap to the housing, a rotator rotatably arranged inside the housing, an activator axially slidable with respect to the housing from an extended position to a retracted position and operably connected to the rotator such as to rotate the rotator from an initial non-activated rotational position and an activated rotational position when the activator is moved from the extended to the retracted position. The rotator further comprises a blocking element arranged to cooperate with the first attachment element for preventing disengagement of the first attachment element from the second attachment element when the rotator is in the activated rotational position.Type: GrantFiled: March 23, 2016Date of Patent: July 30, 2019Assignee: SHL MEDICAL AGInventor: Brian Maxfield
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Publication number: 20190217021Abstract: A cap assembly for a medicament delivery device is disclosed. The cap assembly includes a cap configured to be mounted to a proximal end of the medicament delivery device, wherein the cap comprises a cam surface. The cap assembly further includes a squeezer comprising (i) a body defining a first longitudinally extending channel configured to receive a delivery member shield and (ii) a plurality of radial arms flexible in a radial direction. The cap assembly also includes a spinner comprising (i) a proximal end face configured to cooperate with the cam surface of the cap, (ii) a body defining a second longitudinally extending channel configured to receive the squeezer, and (iii) a plurality of holes in the body of the spinner configured to receive the plurality of radial arms of the squeezer.Type: ApplicationFiled: December 26, 2018Publication date: July 18, 2019Inventor: Brian Maxfield
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Patent number: 10307545Abstract: A cap assembly for a medicament delivery device is disclosed. The cap assembly includes a cap configured to be mounted to a proximal end of the medicament delivery device, wherein the cap comprises a cam surface. The cap assembly further includes a squeezer comprising (i) a body defining a first longitudinally extending channel configured to receive a delivery member shield and (ii) a plurality of radial arms flexible in a radial direction. The cap assembly also includes a spinner comprising (i) a proximal end face configured to cooperate with the cam surface of the cap, (ii) a body defining a second longitudinally extending channel configured to receive the squeezer, and (iii) a plurality of holes in the body of the spinner configured to receive the plurality of radial arms of the squeezer.Type: GrantFiled: May 1, 2017Date of Patent: June 4, 2019Assignee: SHL Medical AGInventor: Brian Maxfield