Fluid delivery device

Abstract

Disclosed herein is a fluid dispenser comprising a barrel defining a longitudinal axis terminating at a first fluid delivery end region; a body movable along the barrel relative to the first fluid delivery end region, the body including a needle carrier, a plunger and a capsule carrier therebetween, a latch interface between the body and the barrel and responsive to a release force therebetween caused by compressive engagement of the barrel at a fluid delivery site on a patient, to enable travel of the plunger and capsule carrier toward the needle carrier, to a dispensing configuration in which an upstream end of the needle pierces the capsule and projects form the first fluid delivery end region to deliver a fluid to the fluid delivery site.

1 . A fluid dispenser comprising a barrel defining a longitudinal axis terminating at a first fluid delivery end region; a dispenser body movable along the barrel relative to the first fluid delivery end region in a first phase between a pre-dispensing configuration and a dispensed configuration, and in a second phase between the dispensed configuration and a locked post-dispensing configuration, wherein the dispenser body is configured to rotate about the longitudinal axis during the first phase for aligned orientation with at least one locking structure configured to lock the dispenser body in the locked post-dispensing configuration during travel in the second phase. 
     
     
         2 . A dispenser as defined in any of the preceding or following claims, wherein the dispenser body includes a needle carrier with a second fluid delivery end region defined thereon. 
     
     
         3 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier is configured to be in a retracted position within the barrel in the locked post-dispensing configuration. 
     
     
         4 . A dispenser as defined in any of the preceding or following claims, wherein the dispenser body includes a fluid capsule carrier moveable relative to the needle carrier in the first phase to dispense fluid from a carried capsule. 
     
     
         5 . A dispenser as defined in any of the preceding or following claims, wherein the dispenser body includes a plunger structure movable relative to the fluid capsule carrier in at least part of the first phase to pressurize a carried capsule. 
     
     
         6 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule carrier is configured, during at least part of the first phase, to travel with the plunger structure. 
     
     
         7 . A dispenser as defined in any of the preceding or following claims wherein, during at least part of the first phase, the fluid capsule carrier is configured to rotate axially between lock-unaligned and lock-aligned angular positions. 
     
     
         8 . A dispenser as defined in any of the preceding or following claims, further comprising at least one rotation interface defined across a plurality of cooperating elements respectively on the fluid capsule carrier and at least one of the plunger structure and the needle carrier, to enable axial rotation of the fluid capsule carrier relative to the barrel. 
     
     
         9 . A dispenser as defined in any of the preceding or following claims, wherein the at least one rotation interface includes a first rotation interface provided between the fluid capsule carrier and the plunger structure, each including one of a corresponding first set of first cooperating elements. 
     
     
         10 . A dispenser as defined in any of the preceding or following claims, wherein the at least one rotation interface includes a second rotation interface provided between the fluid capsule carrier and the needle carrier, each including one of a corresponding second set of second cooperating elements. 
     
     
         11 . A dispenser as defined in any of the preceding or following claims, wherein the first and/or second cooperating elements include at least one guide path and at least one follower to travel along the guide path. 
     
     
         12 . A dispenser as defined in any of the preceding or following claims, wherein the guide path is ramped. 
     
     
         13 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule carrier includes a capsule carrier body comprising an open end region opposite the second fluid delivery end region to receive the plunger structure therethrough. 
     
     
         14 . A dispenser as defined in any of the preceding or following claims, wherein the at least one first guide path is operatively oriented near the open end region to engage the first follower on the plunger structure. 
     
     
         15 . A dispenser as defined in any of the preceding or following claims, wherein the second guide path is operatively oriented near the second fluid delivery end region to engage the second follower on the needle carrier. 
     
     
         16 . A dispenser as defined in any of the preceding or following claims, wherein the capsule carrier body is cylindrical and includes a pair of first guide paths and a pair of second guide paths, each pair being symmetrically arranged relative to the longitudinal axis. 
     
     
         17 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule carrier includes a transverse fluid capsule receiving surface, and a needle passage extending therethrough to receive an upstream end of a needle. 
     
     
         18 . A dispenser as defined in any of the preceding or following claims, wherein the plunger structure includes a plunger end region to travel during at least part of the first phase toward the fluid capsule receiving surface to pressurize the fluid capsule, thereby to express the fluid through the needle. 
     
     
         19 . A dispenser as defined in any of the preceding or following claims, wherein the first phase includes at least in part:
 a. a first rotation phase during which the fluid capsule carrier is rotatable relative to the needle carrier about the longitudinal axis, as the plunger end region approaches the fluid capsule receiving surface; and   b. a second dispensing phase during which the plunger end region is movable axially relative to the fluid capsule receiving surface, at least in part, to pressurize the fluid capsule.   
     
     
         20 . A dispenser as defined in any of the preceding or following claims, wherein during the second dispensing phase, at least in part, the plunger end region is movable axially with the fluid capsule receiving surface, toward piercing contact with a needle on the needle carrier, to dispense the fluid. 
     
     
         21 . A dispenser as defined in any of the preceding or following claims, wherein the at least one locking structure includes a lock interface to fix the dispenser body at a locking location when the dispenser body is in the lock-aligned angular position. 
     
     
         22 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier is biased to travel from the second dispensed position to the locking location. 
     
     
         23 . A dispenser as defined in any of the preceding or following claims, wherein the lock interface is configured between the fluid capsule carrier and the barrel to engage when the dispenser is in the lock-aligned angular position. 
     
     
         24 . A dispenser as defined in any of the preceding or following claims, further comprising at least one latch structure extending laterally outwardly from the fluid capsule carrier and at least one axial latch edge formation extending along an inner surface of the barrel and terminating at a transition region, wherein the latch structure is configured to travel along the axial latch edge formation toward and beyond the transition, thereby to release the plunger structure. 
     
     
         25 . A dispenser as defined in any of the preceding or following claims, wherein the at least one locking structure and the at least one latch structure are each defined in common by a pair of locking tabs extending outwardly from the fluid capsule carrier. 
     
     
         26 . A dispenser as defined in any of the preceding or following claims, wherein the bias is provided by at least one spring acting between the first and second fluid delivery end regions. 
     
     
         27 . A dispenser as defined in any of the preceding or following claims, wherein the lock interface is configured between the at least one locking structure extending laterally outwardly from the needle carrier and at least one transverse locking edge formation extending transversely across a surface of the barrel at the locking location, wherein the locking structure is configured to travel toward and engage the transverse locking edge formation at the locking location when in the lock-aligned angular position. 
     
     
         28 . A dispenser as defined in any of the preceding or following claims, wherein the at least one locking structure includes at least one locking tab extending laterally outwardly from the fluid capsule carrier to engage a corresponding locking edge formation on the barrel. 
     
     
         29 . A dispenser as defined in any of the preceding or following claims, wherein the plunger structure includes a plunger and a plunger support, the plunger configured to swivel through at least a predetermined range relative to the plunger support to rotate with the fluid capsule carrier. 
     
     
         30 . A dispenser as defined in any of the preceding or following claims, the fluid capsule carrier and the plunger being configured to fix an angular position of the plunger relative to the fluid capsule carrier at least during the first phase. 
     
     
         31 . A dispenser as defined in any of the preceding or following claims, the fluid capsule carrier and the plunger further comprising complementary guide formations to align the plunger with the fluid capsule carrier. 
     
     
         32 . A dispenser as defined in any of the preceding or following claims, wherein the guide formations include at least one laterally outwardly extending tab on the plunger and at least one longitudinal groove formed in an inner surface of the fluid capsule carrier. 
     
     
         33 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support and the needle carrier are configured to fix an angular position of the plunger support relative to the needle carrier. 
     
     
         34 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier and the plunger support include complementary formations aligned with the longitudinal axis to form a plunger support travel path along the longitudinal axis. 
     
     
         35 . A dispenser as defined in any of the preceding or following claims, wherein the complementary formations include a pair of flanges extending from one of the needle carrier and the plunger support, to be received in complementary groove formations on the other of the needle carrier and the plunger support. 
     
     
         36 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support includes a cover flange laterally outwardly spaced to form an annular passage to receive an adjacent end region on the barrel. 
     
     
         37 . A dispenser as defined in any of the preceding or following claims, further comprising at least one user gripping tab extending outwardly from the needle carrier or the barrel for a user to engage for manipulating the dispenser through at least part of the first phase. 
     
     
         38 . A dispenser as defined in any of the preceding or following claims, further comprising a signal emitter to emit a signal indicating that the plunger structure has reached a dispensed position. 
     
     
         39 . A dispenser as defined in any of the preceding or following claims, wherein the signal emitter includes a signal emitting interface between the barrel and the dispenser body. 
     
     
         40 . A dispenser as defined in any of the preceding or following claims, wherein the signal emitting interface includes at least one resilient tab and at least one locking formation aligned therewith, each of which is located on one a respective one of the barrel and the dispenser body. 
     
     
         41 . A dispenser as defined in any of the preceding or following claims, wherein the at least resilient tab extends from the plunger support and the at least one locking formation is positioned on an inner surface of the barrel. 
     
     
         42 . A dispenser as defined in any of the preceding or following claims, wherein the at least one resilient tab is locked in position with at least one locking formation in the dispensed position. 
     
     
         43 . A dispenser as defined in any of the preceding or following claims, further comprising a lock interface to lock the dispenser body relative to the barrel in the dispensed position. 
     
     
         44 . A dispenser as defined in any of the preceding or following claims, wherein the lock interface includes at least one resilient tab and a boss aligned therewith, each of which is located on one a respective one of the barrel and the body. 
     
     
         45 . A dispenser as defined in any of the preceding or following claims, wherein the resilient tab extends from the plunger support and the boss is positioned on an inner surface of the barrel. 
     
     
         46 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support, the needle carrier and/or the barrel include formations to form a guide interface for inhibiting rotational movement therebetween. 
     
     
         47 . A dispenser as defined in any of the preceding or following claims, wherein the guide interface includes at least one support passage to receive an extended section on the barrel. 
     
     
         48 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support includes a pair of symmetrically opposed circumferentially extended webs, each defining an outer periphery of one of a corresponding pair of support passages. 
     
     
         49 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier includes a pair of opposed and circumferentially cross sectioned guide sections to engage corresponding surfaces on the plunger support. 
     
     
         50 . A fluid dispenser comprising:
 a. a barrel defining a longitudinal axis terminating at a first fluid delivery end region;   b. a body movable along the barrel relative to the first fluid dispensing end region, the body including:
 i. a needle carrier aligned with the longitudinal axis and terminating at a second fluid delivery end region, at which is located a needle having a downstream end configured to project through the first fluid delivery end region in a first dispensing position; 
 ii. a plunger structure aligned with the longitudinal axis and movable axially relative to the needle carrier; and 
 iii. a fluid capsule carrier which is configured to receive a fluid capsule, the fluid capsule carrier being aligned with the longitudinal axis and movable axially relative to the needle carrier and the plunger structure; 
 iv. a latch interface operable under the action of a compressive force between the barrel and the body, to release the plunger structure to travel relative to the needle carrier; and 
 v. the fluid capsule carrier configured, in a dispensing mode, to travel toward piercing contact of the needle with the fluid capsule. 
   
     
     
         51 . A dispenser as defined in claim any of the preceding or following claims, wherein the fluid capsule carrier is configured, in at least part of the dispensing mode, to travel with the plunger structure. 
     
     
         52 . A dispenser as defined in any of the preceding or following claims, wherein, in at least part of the dispensing mode, the fluid capsule carrier is configured to rotate axially between lock-unaligned and lock-aligned angular positions. 
     
     
         53 . A dispenser as defined in any of the preceding or following claims, further comprising at least one rotation interface including a plurality of cooperating elements respectively on the fluid capsule carrier and at least one of the plunger structure and the needle carrier. 
     
     
         54 . A dispenser as defined in any of the preceding or following claims, wherein the at least one rotation interface includes a first rotation interface provided between the fluid capsule carrier and the plunger structure , each including one of a corresponding first set of first cooperating elements. 
     
     
         55 . A dispenser as defined in any of the preceding or following claims, wherein the at least one rotation interface includes a second rotation interface provided between the fluid capsule carrier and the needle carrier, each including one of a corresponding second set of second cooperating elements. 
     
     
         56 . A dispenser as defined any of the preceding or following claims, wherein the first and/or second cooperating elements include at least one guide path and at least one follower to travel along the guide path. 
     
     
         57 . A dispenser as defined in any of the preceding claims, wherein the guide path is ramped. 
     
     
         58 . A dispenser as defined in any of the preceding or following claims, wherein the follower in the first and/or second sets of cooperating elements includes a follower guide path. 
     
     
         59 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule carrier includes a capsule carrier body comprising an open end region opposite the second fluid delivery end region to receive the plunger structure therethrough, 
     
     
         60 . A dispenser as defined in any of the preceding or following claims, wherein at least one first guide path is operatively oriented near the open end region to engage the first follower on the plunger structure, and at least one second guide path operatively oriented near the second fluid delivery end region to engage the second follower on the needle carrier. 
     
     
         61 . A dispenser as defined in any of the preceding or following claims, wherein the capsule carrier body is cylindrical and includes a pair of first guide paths and a pair of second guide paths, each pair being symmetrically arranged relative to the longitudinal axis. 
     
     
         62 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule carrier includes a fluid capsule receiving surface, and a needle passage extending therethrough to receive the upstream end of the needle in the first dispensing position, the plunger structure including a plunger end region to travel during the dispensing mode toward a second dispensed position adjacent the fluid capsule receiving surface and to cooperate therewith to pressurize the fluid capsule, thereby to express the fluid through the needle. 
     
     
         63 . A dispenser as defined in any of the preceding or following claims, wherein the dispensing mode includes at least in part:
 a. a first rotation phase during which the fluid capsule carrier rotates relative to the needle carrier about the longitudinal axis, while the plunger end region approaches the fluid capsule receiving surface; and   b. a second dispensing phase during which the plunger end region is movable axially relative to the fluid capsule receiving surface, at least in part, to pressurize the fluid capsule and dispense the fluid.   
     
     
         64 . A dispenser as defined in any of the preceding or following claims, wherein during the second dispensing phase, at least in part, the plunger end region is movable axially with the fluid capsule receiving surface, toward piercing contact with a needle on the needle carrier, to dispense the fluid. 
     
     
         65 . A dispenser as defined in any of the preceding or following claims, further comprising a lock interface to fix the body at a locking location when the fluid capsule carrier is in the lock-aligned angular position. 
     
     
         66 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier is biased to travel from the second dispensed position to the locking location. 
     
     
         67 . A dispenser as defined in any of the preceding or following claims, wherein the bias is provided by at least one spring acting between the first and second fluid delivery end regions. 
     
     
         68 . A dispenser as defined in any of the preceding or following claims, further comprising a latch interface configured between at least one locking tab extending laterally outwardly from the fluid capsule carrier and at least one axial latch edge formation extending along an inner surface of the barrel and terminating at a transition region, wherein the locking tab is configured to travel along the axial locking edge formation under the action of the compressive force toward and beyond the transition region, thereby to release the plunger structure for travel relative to the fluid capsule carrier. 
     
     
         69 . A dispenser as defined in any of the preceding or following claims, wherein the lock interface is configured between at least one locking tab extending laterally outwardly from the fluid capsule carrier and at least one transverse locking edge formation extending transversely across an inner surface of the barrel at the lock location, wherein the locking tab is configured to travel toward and engage the transverse locking edge formation at the locking location when in the lock-aligned angular position. 
     
     
         70 . A dispenser as defined in any of the preceding or following claims, wherein the at least one locking tab includes a pair of locking tabs extending laterally outwardly from the fluid capsule carrier. 
     
     
         71 . A dispenser as defined in any of the preceding or following claims, wherein the plunger structure includes a plunger and a plunger support, the plunger configured to swivel through at least a predetermined range relative to the plunger support to rotate with the fluid capsule carrier. 
     
     
         72 . A dispenser as defined in any of the preceding or following claims, the fluid capsule carrier and the plunger being configured to fix an angular position of the plunger relative to the fluid capsule carrier at least during the dispensing mode. 
     
     
         73 . A dispenser as defined any of the preceding or following claims, the fluid capsule carrier and the plunger further comprising complementary guide formations. 
     
     
         74 . A dispenser as defined in any of the preceding or following claims, wherein the guide formations include at least one laterally outwardly extending tab on the plunger and at least one longitudinal groove formed in an inner surface of the fluid capsule carrier. 
     
     
         75 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support and the needle carrier are configured to fix an angular position of the plunger support relative to the needle carrier in the dispensing mode. 
     
     
         76 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier and the plunger support include complementary formations aligned with the longitudinal axis to form a plunger support travel path along the longitudinal axis. 
     
     
         77 . A dispenser as defined in any of the preceding or following claims, the complementary formations including a pair of flanges extending from the needle carrier toward the plunger support, to be received in complementary groove formations on the plunger support. 
     
     
         78 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support includes a cover flange laterally outwardly spaced to form an annular passage to receive an adjacent end region on the barrel. 
     
     
         79 . A dispenser as defined in any of the preceding or following claims any, further comprising at least one user gripping tab extending outwardly from the needle carrier or the barrel for a user to engage for manipulating the dispenser through at least part of the dispensing mode. 
     
     
         80 . A dispenser as defined in any of the preceding or following claims, further comprising a signal emitter to emit a signal indicating that the plunger structure has reached the second dispensed position. 
     
     
         81 . A dispenser as defined in any of the preceding or following claims, wherein the signal emitter includes a signal emitting interface between the barrel and the body. 
     
     
         82 . A dispenser as defined in any of the preceding or following claims, wherein the signal emitting interface includes at least one resilient tab and at least one locking formation aligned therewith, each of which is located on one a respective one of the barrel and the body. 
     
     
         83 . A dispenser as defined in any of the preceding or following claims, wherein the resilient tab extends from the plunger support and at least one locking formation is positioned on an inner surface of the barrel. 
     
     
         84 . A dispenser as defined any of the preceding or following claims, wherein the resilient tab is locked in position with the at least one locking formation in the second dispensed position. 
     
     
         85 . A dispenser as defined in any of the preceding or following claims, further comprising a lock interface to lock the body relative to the barrel in the second dispensed position. 
     
     
         86 . A dispenser as defined in any of the preceding or following claims, wherein the lock interface includes at least one resilient tab and a boss aligned therewith, each of which is located on a respective one of the barrel and the body. 
     
     
         87 . A dispenser as defined in any of the preceding or following claims, wherein the resilient tab extends from the plunger support and the boss is positioned on an inner surface of the barrel. 
     
     
         88 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support, the needle carrier and/or the barrel include formations to form a guide interface for guiding movement therebetween. 
     
     
         89 . A dispenser as defined in any of the preceding or following claims, wherein the guide interface includes at least one support passage to receive an extended section on the barrel. 
     
     
         90 . A dispenser as defined in any of the preceding or following claims, wherein the plunger support includes a pair of symmetrically opposed circumferentially extended webs, each defining an outer periphery of one of a corresponding pair of support passages. 
     
     
         91 . A dispenser as defined in any of the preceding or following claims, wherein the needle carrier includes a pair of opposed and circumferentially cross sectioned guide sections to engage corresponding surfaces on the plunger support. 
     
     
         92 . A fluid dispenser comprising a barrel defining a longitudinal axis and terminating at a first fluid delivery end region; a body movable along the barrel relative to the first fluid delivery end region, the body including a needle carrier, a plunger and a fluid capsule carrier therebetween, a latch interface between the body and the barrel and responsive to a release force therebetween caused by compressive engagement of the barrel at a fluid delivery site, to enable travel of the plunger and the fluid capsule carrier toward the needle carrier, to a dispensing configuration in which an upstream end of a needle on the needle carrier extends into a capsule carrying region of the fluid capsule carrier and a downstream end of the needle projects extends through the first fluid delivery end region for delivery of a fluid thereto. 
     
     
         93 . A fluid dispenser comprising a barrel defining a longitudinal axis terminating at a dispensing end; a dispenser body movable along the barrel relative to the dispensing end, the dispenser body including a needle carrier, a plunger and a fluid capsule carrier moveable relative to the needle carrier and the plunger, and a latch interface configured to release the dispenser body for travel in the barrel in response to a release force between the barrel and the dispenser body. 
     
     
         94 . A fluid dispenser comprising a barrel defining a longitudinal axis terminating at a dispensing end; a dispenser body movable along the barrel relative to the dispensing end, the dispenser body including a needle carrier, a plunger and a fluid capsule carrier moveable relative to the needle carrier and the plunger, and a latch interface configured to release the dispenser body for dispensing travel in the barrel in response to a compressive engagement of the dispensing end at a fluid delivery site. 
     
     
         95 . A fluid dispenser, comprising a fluid capsule receiver configured to form a fluid capsule pressuring zone in a first capsule pressurizing mode, a needle carrier supporting a fluid delivery needle, the needle carrier and the fluid capsule receiver configured to cause the needle to extend into the fluid capsule pressurizing zone to pierce the pressurized fluid capsule in a second fluid capsule piercing mode; and a body containing the fluid capsule receiver and the needle carrier, the fluid capsule receiver and the needle carrier configured to move along the body to expose a fluid delivery end of the needle in a third fluid delivery mode. 
     
     
         96 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule receiver includes a plunger and a fluid capsule carrier, the plunger and fluid capsule carrier having complementary surfaces to locate the fluid capsule therebetween. 
     
     
         97 . A dispenser as defined in any of the preceding or following claims, further comprising a plunger support to support the plunger, at least one interface operable between the plunger support, the fluid capsule carrier, the needle carrier and/or the body to enable displacement of the plunger relative to the fluid capsule carrier in the first, second and/or third modes while exerting a compressive force at substantially consistent magnitude between the plunger support and the body. 
     
     
         98 . A method of dispensing a fluid from a fluid capsule, comprising:
 a. locating a fluid capsule on a fluid capsule support surface;   b. displacing a plunger along an axis to toward engagement with the fluid capsule;   c. pressurizing the fluid capsule between the plunger and the fluid capsule support surface, so that a membrane of the fluid capsule against the fluid capsule support surface is in a tensioned needle receiving configuration;   d. displacing the plunger and the fluid capsule support, with the fluid capsule in the needle receiving configuration toward a needle support to cause a capsule-piercing end of a fluid delivery needle thereon, to extend through the fluid capsule support surface to penetrate the membrane to initiate onset of dispensing of fluid through the needle; and   e. advancing the plunger, the fluid capsule support and the needle support toward a fluid delivery configuration with an opposite fluid delivery end of the needle exposed to penetrate a delivery location.   
     
     
         99 . A method of securing a dispensing device following delivery of a fluid therefrom, comprising providing a barrel defining a longitudinal axis terminating at a first fluid delivery end region and a dispenser body movable along the barrel relative to the first fluid delivery end region, the dispenser body movable in a first phase between a pre-dispensing configuration and a dispensed configuration, and in a second phase between the dispensed configuration and a locked post-dispensing configuration, wherein the dispenser body is configured to rotate about the longitudinal axis, at least in part, during the first phase for aligned orientation with at least one locking structure during travel in the second phase. 
     
     
         100 . A method of securing a dispensing device following delivery of a fluid therefrom, comprising:
 a. providing a barrel defining a longitudinal axis terminating at a first fluid delivery end region and a dispenser body movable along the barrel relative to the first fluid delivery end region;   b. displacing the dispenser body in a first phase between a pre-dispensing configuration and a dispensed configuration, and in a second phase between the dispensed configuration and a locked post-dispensing configuration, wherein the dispenser body is rotated about the longitudinal axis, at least in part, during the first phase and/or the second phase for aligned orientation with at least one locking structure during travel in the second phase.   
     
     
         101 . A fluid dispenser comprising a barrel defining a longitudinal axis terminating at a first fluid delivery end region; a dispenser body movable along the barrel relative to the first fluid delivery end region in a first phase between a pre-dispensing configuration and a dispensed configuration, and in a second phase between the dispensed configuration and a locked post-dispensing configuration, wherein the dispenser body is configured to rotate about the longitudinal axis during the first phase and/or the second phase for aligned orientation with at least one locking structure configured to lock the dispenser body in the locked post-dispensing configuration during travel in the second phase. 
     
     
         102 . A fluid dispenser comprising housing means defining a longitudinal axis terminating at a first fluid delivery end region; dispensing means movable along the housing means relative to the first fluid delivery end region in a first phase between a pre-dispensing configuration and a dispensed configuration, and in a second phase between the dispensed configuration and a locked post-dispensing configuration, wherein the dispensing means is configured to rotate about the longitudinal axis during the first phase and/or the second phase for aligned orientation with at least one locking means during travel in the second phase. 
     
     
         103 . A fluid dispenser comprising housing means defining a longitudinal axis terminating at a first fluid delivery end region; dispensing means movable along the housing means relative to the first fluid delivery end region in a first phase between a pre-dispensing configuration and a dispensed configuration, and in a second phase between the dispensed configuration and a locked post-dispensing configuration, wherein the dispensing means is configured to rotate about the longitudinal axis during the first phase for aligned orientation with at least one locking means during travel in the second phase. 
     
     
         104 . A dispenser as defined in any of the preceding or following claims, wherein the dispensing means includes a needle support means with a second fluid delivery end region defined thereon. 
     
     
         105 . A dispenser as defined in any one of the preceding or following claims, wherein the dispensing means includes fluid capsule carrier means movable relative to the needle support means in at least part of the first phase to dispense fluid from a carried capsule therein. 
     
     
         106 . A dispenser as defined in any one of the preceding or following claims, wherein the dispensing means includes plunger means movable relative to the fluid capsule carrier means in at least part of the first phase to pressurize a carried capsule therein. 
     
     
         107 . A dispenser as defined in any of the preceding or following claims, wherein the needle support means is retracted to within the housing means in the locked post-dispensing configuration. 
     
     
         108 . A dispenser as defined in any of the preceding or following claims, wherein the fluid capsule carrier means is configured, during at least part of the first phase, to travel with the plunger means. 
     
     
         109 . A dispenser as defined in any of the preceding or following claims wherein, during at least part of the first phase, the fluid capsule carrier means is configured to rotate axially between lock-unaligned and lock-aligned angular positions. 
     
     
         110 . A dispenser as defined in any of the preceding or following claims, further comprising at least one rotation means provided between the fluid capsule carrier means and at least one of the plunger means and the needle support means. 
     
     
         111 . A dispenser as defined in any of the preceding or following claims, wherein the at least one rotation means includes a first rotation means provided between the fluid capsule carrying means and plunger means. 
     
     
         112 . A dispenser as defined in any of the preceding or following claims, wherein the at least one rotation means includes a second rotation means provided between the fluid capsule carrier means and the needle support means. 
     
     
         113 . A dispenser as defined in any of the preceding or following claims, wherein the capsule carrier means is configured to receive a fluid capsule to be pressurized therein by the plunger means, the fluid capsule carrier means is configured in a first dispensing position to receive an upstream end of a needle on the needle support means to penetrate the fluid capsule as pressurized, and the plunger means is configured to travel with the fluid capsule carrier means toward a dispensed position to express the fluid through the needle at the first delivery end region. 
     
     
         114 . A dispenser as defined in any of the preceding or following claims, wherein the first phase includes at least in part:
 a. a first rotation phase during which the fluid capsule carrier means is rotatable relative to the needle carrier means about the longitudinal axis, as the plunger means approaches the fluid capsule carrier means; and   b. a second dispensing phase during which the plunger means is movable axially relative to the fluid capsule carrier means toward the dispensed position to pressurize the capsule and dispense the fluid.   
     
     
         115 . A dispenser as defined in any of the preceding or following claims, wherein during the second dispensing phase, at least in part, the plunger means is movable axially with the fluid capsule carrying means, toward piercing contact with a needle means on the needle carrier means, to dispense the fluid. 
     
     
         116 . A dispenser as defined in any of the preceding or following claims, wherein the at least one locking means is configured to fix the fluid capsule carrier means at a locking location when the fluid capsule carrier means is in the lock-aligned angular position, the needle support means being biased to travel from the dispensed position toward the locking location. 
     
     
         117 . A dispenser as defined in any of the preceding or following claims, wherein the at least one locking means is configured between the fluid capsule carrier means and the housing means to engage when the dispensing means is in the lock-aligned angular position. 
     
     
         118 . A dispenser as defined in any of the preceding or following claims, wherein the bias is provided by at least one biasing means acting between the first and second fluid delivery end regions. 
     
     
         119 . A dispenser as defined in any of the preceding or following claims, further comprising latch means which configured to release the dispensing means at a transition region following relative travel of the dispensing means along the longitudinal axis, toward and beyond the transition, thereby to release the plunger means. 
     
     
         120 . A method as shown or described herein. 
     
     
         121 . A dispenser as shown or described herein.