| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 604209000 | By rachet and pawl | 24 |
| 20080200882 | CONTROLLED VOLUME INJECTION/ASPIRATION DEVICE - A controlled volume injection/aspiration device includes a syringe having a body for containing a medicament, a needle and a piston slidably disposed within the body. A shell is provided for receiving the syringe body and a plunger rack is disposed within the shell. A manually operated control is disposed in an operative relationship with the plunger rack for moving the plunger rack in a stepwise forward direction causing the piston to eject discrete doses of medication from the syringe body through the needle. The manual operated control is also operative for moving the piston in a stepwise reverse direction causing the piston to aspirate fluid into the syringe body through the needle. | 08-21-2008 |
| 20080208143 | Automatically Disabled Syringe - A syringe ( | 08-28-2008 |
| 20100137812 | Pen style liquid dispenser - A hand-held device ( | 06-03-2010 |
| 20100168679 | Ultra Low Dose Delivery System of Injectables For Animal Health Care - Disclosed is an ultra-low dose injection delivery system. The system includes a pistol grip having front and rear handles, a barrel containing an injectable fluid, and a bottle mount integrated with the barrel for receiving and securing a bottle holder, the bottle mount including a conduit running from a spike tip that punctures a bung of the bottle into the barrel. The system further includes a needle coupling attached to the barrel adapted to receive and secure a needle and a plunger for assisting in drawing an injectable fluid from a bottle into the barrel and for forcing the injectable fluid out of the barrel. A ratcheting mechanism incrementally advances a selectable ultra-low dose of injectable fluid out of the barrel upon a full stroke of the pistol grip. A full stroke is defined as advancing the plunger forward by squeezing the front and rear handles together until the ratcheting mechanism stops the plunger from further advancing yet still allows the front and rear handles to be fully squeezed. | 07-01-2010 |
| 20110257604 | Additive Force Device For Drug Delivery Pen For Intradermal Medication Injection - An additive force device ( | 10-20-2011 |
| 20110282299 | Dispenser device - A dispenser device comprising a pistol housing, a needle direction control mechanism, a boost mechanism, a quantification control mechanism, and a combination of a housing, a needle direction control mechanism, a boost mechanism, and a syringe positioning mechanism or a holding ring embodies the present invention with features and advantages shown as follows, (1) Uniform injection of agents synchronously mixed by not less than two contents; (2) Mixed agents not exposed in air; (3) Uniform injection, high air tightness, injection direction controlled by easy turning, smooth and convenient operation, high powerful operation via shifts of a push rod driven by a pressed trigger, promoted yield rate, assembly easily constructed, reduced manufacture cost, and convenient maintenance. | 11-17-2011 |
| 20120089100 | Pen-Type Injector - A housing for a dispensing apparatus. The housing comprising a main housing and a dose dial sleeve. The dose dial sleeve comprising a helical groove configured to engage a threading provided by the housing. A dose knob is disposed near a proximal end of the dose dial sleeve and a piston rod is provided within the housing. The piston rod is non-rotatable during a dose setting step. A driver comprises an internal threading near a distal portion of the driver and is adapted to engage an external thread of the piston rod. A tubular clutch is located adjacent a distal end of the dose knob and operatively coupled to the dose knob. The dose dial sleeve may extend circumferentially around at least a portion of the tubular clutch. | 04-12-2012 |
| 20130197449 | DOSING INJECTOR - A metered dose syringe includes a barrel having an open end and a opposing spaced apart port adapted to receive a needle. A plunger rod is provided and slidably disposed within the barrel through the barrel open end. Structure interconnected with the barrel and the plunger rod is provided for enabling stepwise movement of the plunger rod within the barrel. A syringe within the scope of our present invention permits injection of repeated and accurate doses due to the physical stops or dosage administered indicators. | 08-01-2013 |
| 20130289493 | Dose Dividing Delivery Device - A simple method and device enabling a unit dose from a reservoir is provided. The dose is drawn into the reservoir and is then expelled from the device by depressing a plunger. The plunger has features which divide the dose into discrete intervals. As the plunger is moved during delivery, features on the plunger and features connected to a barrel interact to provide for intermittent stops to the delivery. Other aspects of the device provide for reduced dead space, safety and selective interconnection with other devices. Thus, the device divides the dose. | 10-31-2013 |
| 20140025016 | Dose Setting Mechanism and Injection Device - A dose setting mechanism for a resettable drug delivery device is provided comprising a dose setting member and a drive member for driving a piston rod in a distal direction during dose dispensing, wherein the drive member comprises a proximal drive member and a distal drive member. Further, a first clutch is provided for releasably coupling the proximal drive member and the distal drive member. A spring means biases the proximal drive member and the distal drive member in the coupled state during dose setting and dose dispensing. According to one aspect of the invention engaging means are provided associated to the proximal drive member and to the dose setting member, wherein the engaging means are designed and arranged such that the proximal drive member entrains the dose setting member in the distal direction during dose setting but allows a relative axial movement of the proximal drive member with respect to the dose setting member in the proximal direction. Further, the invention refers to an injection device with such a dose setting mechanism. | 01-23-2014 |
| 20140046268 | Multiple Use Disposable Injection Pen - A medication injection pen ( | 02-13-2014 |
| 20140088515 | Medicament Delivery Device with Dose Re-Setting - The present invention relates to a medicament delivery device comprising a housing ( | 03-27-2014 |
| 20140323980 | MEDICAL INJECTOR WITH RATCHETING PLUNGER - A medical injector has a body with a displaceable plunger. The plunger includes a plurality of spaced-apart ratchet teeth disposed along the length thereof. At least one indexer is provided to engage the plunger, wherein the indexer is configured to allow the plunger to displace distally toward a distal end of the body but not proximally toward a proximal end of the body. The medical injector also includes an actuator having an engagement portion formed to engage one or more of the ratchet teeth. The actuator is displaceable to a ready state, the engagement portion being displaced proximally relative to the plunger with the actuator being displaced to the ready state. The indexer prevents proximal movement of the plunger, thereby allowing the engagement portion to bypass one or more of the ratchet teeth with the actuator being displaced to the ready state. In addition, the actuator is displaceable from the ready state to cause actuation of the medical injector. The displacement from the ready state causes distal displacement of the engagement portion with the engagement portion engaging one or more of the ratchet teeth and causing distal displacement of the plunger with the engagement portion. | 10-30-2014 |
| 20150112275 | Medical Injector with Ratcheting Plunger - A medical injector is provided herein having a body with a displaceable plunger. The plunger includes a plurality of spaced-apart ratchet teeth disposed along the length thereof. At least one indexer is provided formed to engage the plunger, wherein the indexer is configured to allow the plunger to displace distally towards a distal end of the body but not proximally towards a proximal end of the body. The medical injector also includes an actuator having an engagement portion formed to engage one or more of the ratchet teeth. The actuator is displaceable to a ready state, the engagement portion being displaced proximally relative to the plunger with the actuator being displaced to the ready state. The indexer prevents proximal movement of the plunger thereby allowing the engagement portion to by-pass one or more of the ratchet teeth with the actuator being displaced to the ready state. In addition, the actuator is displaceable from the ready state to cause actuation of the medical injector. The displacement from the ready state causes distal displacement of the engagement portion with the engagement portion engaging one or more of the ratchet teeth and causing distal displacement of the plunger with the engagement portion. Advantageously, the subject invention provides a plunger for a medical injector which may be controllably advanced with a minimum number of cooperating parts. | 04-23-2015 |
| 20150112276 | Medical Injector with Ratcheting Plunger - A medical injector is provided herein having a body with a displaceable plunger. The plunger includes a plurality of spaced-apart ratchet teeth disposed along the length thereof. At least one indexer is provided formed to engage the plunger, wherein the indexer is configured to allow the plunger to displace distally towards a distal end of the body but not proximally towards a proximal end of the body. The medical injector also includes an actuator having an engagement portion formed to engage one or more of the ratchet teeth. The actuator is displaceable to a ready state, the engagement portion being displaced proximally relative to the plunger with the actuator being displaced to the ready state. The indexer prevents proximal movement of the plunger thereby allowing the engagement portion to by-pass one or more of the ratchet teeth with the actuator being displaced to the ready state. In addition, the actuator is displaceable from the ready state to cause actuation of the medical injector. The displacement from the ready state causes distal displacement of the engagement portion with the engagement portion engaging one or more of the ratchet teeth and causing distal displacement of the plunger with the engagement portion. Advantageously, the subject invention provides a plunger for a medical injector which may be controllably advanced with a minimum number of cooperating parts. | 04-23-2015 |
| 20150133871 | INJECTING DEVICE WITH DOSE RESETTING MECHANISM - Injecting device with dose resetting mechanism enables release energy accumulated in spring means ( | 05-14-2015 |
| 20150141932 | Dose Dividing Delivery Device - A simple method and device enabling a unit dose from a reservoir is provided. The dose is drawn into the reservoir and is then expelled from the device by depressing a plunger. The plunger has features which divide the dose into discrete intervals. As the plunger is moved during delivery, the features on the plunger and the features connected to a barrel interact to provide for intermittent stops to the delivery. Other aspects of the device provide for reduced dead space, safety and selective interconnection with other devices. Thus, the device divides the dose. | 05-21-2015 |
| 20160022919 | DISPENSING MECHANISM FOR A MEDICAL DEVICE - A dispensing mechanism for administering a dosage of a medicament includes dosage setting means ( | 01-28-2016 |
| 20160038676 | Injection Device - The invention refers to a handheld injection device comprising a housing ( | 02-11-2016 |
| 20160038686 | DISPENSING MECHANISM FOR A MEDICAL DEVICE - A dispensing mechanism for administering a dosage of a medicament includes dosage setting means ( | 02-11-2016 |
| 20160045673 | HAND-HELD DRUG INJECTION DEVICE AND DOSE SETTING LIMITER MECHANISM THEREFOR - The present invention relates to a drive mechanism of a drug delivery device for dispensing of a dose of a medicament, the mechanism comprising: —a housing ( | 02-18-2016 |
| 20160058952 | PEN-TYPE DRUG INJECTION DEVICE AND DOSE SETTING LIMITER MECHANISM THEREFOR - The present invention relates to a pen type drug delivery device having a dose setting limiter mechanism. The mechanism comprises a housing ( | 03-03-2016 |
| 20160144121 | Drive Mechanism for a Drug Delivery Device - A drive mechanism for a delivery device or a positioning mechanism comprising a rod ( | 05-26-2016 |
| 20160158456 | DRIVE MECHANISM FOR A DELIVERY DEVICE - A drive mechanism for a delivery device is presented. The drive mechanism comprises a housing ( | 06-09-2016 |
