IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0209650
(2011-08-15)
|
등록번호 |
US-8640921
(2014-02-04)
|
우선권정보 |
IL-207715 (2010-08-19) |
발명자
/ 주소 |
- Meron, Moti
- Tsuk, Aner
- Atlas, Roee
- Nur, Israel
|
출원인 / 주소 |
- Omrix Biopharmaceuticals Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
10 |
초록
▼
The invention relates to a device for dispensing a fixed dose of fluid, the device comprising at least one barrel; at least one plunger at least partially enclosed within the barrel; a motion conversion mechanism for transferring actuated pressure force applied outside the barrel into movement of th
The invention relates to a device for dispensing a fixed dose of fluid, the device comprising at least one barrel; at least one plunger at least partially enclosed within the barrel; a motion conversion mechanism for transferring actuated pressure force applied outside the barrel into movement of the at least one plunger in a dispensing direction, wherein the motion conversion mechanism comprises at least one rotating gear; and a releasing mechanism for disconnecting the plunger from the motion conversion mechanism, wherein at a released position the at least one plunger can move in a direction opposite to the dispensing direction, independent of a rotational movement of the at least one gear, and wherein the movement of the plunger in the opposite direction to the dispensing enables loading the fluid into the barrel.
대표청구항
▼
1. A device for dispensing a fixed dose of fluid, the device comprising: at least one barrel;at least one plunger at least partially enclosed within the barrel;a motion conversion mechanism for transferring actuated pressure force applied outside the barrel into movement of the at least one plunger
1. A device for dispensing a fixed dose of fluid, the device comprising: at least one barrel;at least one plunger at least partially enclosed within the barrel;a motion conversion mechanism for transferring actuated pressure force applied outside the barrel into movement of the at least one plunger in a dispensing direction, wherein the motion conversion mechanism comprises at least one rotating gear, wherein the motion conversion mechanism comprises at least one rotatable cylindrical threaded shaft connected directly or indirectly to the at least one plunger; anda releasing mechanism for disconnecting the plunger from the motion conversion mechanism, wherein at a released position the at least one plunger can move in a direction opposite to the dispensing direction, independent of a rotational movement of the at least one gear, and wherein the movement of the plunger in the opposite direction to the dispensing enables loading the fluid into the barrel, wherein the releasing mechanism comprises a split nut attached to the at least one plunger, wherein the split nut engages the cylindrical threaded shaft and rotates along the cylindrical threaded shaft and the operation of the releasing mechanism comprises opening the split nut to enable free movement of the plunger. 2. The device of claim 1, wherein the motion conversion mechanism further comprises at least one rack gear, and at least one pinion gear, wherein the releasing mechanism disconnects the plunger from the cylindrical threaded shaft. 3. The device of claim 2, wherein the releasing mechanism further comprises a splitting element, wherein the split nut is composed of two parts connected via a pivot and has an opened and closed position, such that when the splitting element is moved along the barrel axis during the loading, the split nut is opened by the splitting element. 4. The device of claim 3, wherein the splitting element is part of a bar having a fork-like channel structure, wherein the bar is connected to a pulling handle, wherein the split nut is composed of two parts connected via a pivot connection and the bar is associated with the two parts of the split nut such that the movement of the bar caused by pulling the handle pushes the split nut parts apart in the fork-like channel, thereby opening the split nut. 5. The device of claim 4, further comprising an actuating handle located outside the barrel and rack and pinion gears which convert a linear movement of the handle into the rotational movement of the cylindrical threaded shaft. 6. The device of claim 5, wherein at each actuation operation the fixed dose is determined by the pitch of the cylindrical threaded shaft and the diameter of the barrel. 7. The device of claim 6, wherein the rack gear is connected to the rotatable cylindrical threaded shaft by two opposite crown gears enabling rotation of the cylindrical threaded shaft only in one direction. 8. The device of claim 7, wherein the crown gears design forms small gaps between the gear's teeth preventing backwards movement of the plunger throughout the motion conversion mechanism operation. 9. A device for dispensing a fixed dose of fluid, the device comprising: at least one barrel;at least one plunger at least partially enclosed within the barrel;a motion conversion mechanism for transferring actuated pressure force applied outside the barrel into movement of the at least one plunger in a dispensing direction, wherein the motion conversion mechanism comprises at least one rotating gear; anda releasing mechanism for disconnecting the plunger from the motion conversion mechanism, wherein at a released position the at least one plunger can move in a direction opposite to the dispensing direction independent of a rotational movement of the at least one gear, wherein the movement of the plunger in the opposite direction enables loading the fluid into the barrel,wherein the motion conversion mechanism comprises at least one rack gear, at least one pinion gear, and at least one rotatable cylindrical threaded shaft connected directly or indirectly to the at least one plunger, wherein the releasing mechanism disconnects the plunger from the cylindrical threaded shaft;wherein the releasing mechanism comprises a split nut attached to the at least one plunger and engages the cylindrical threaded shaft, wherein the split nut rotates along the cylindrical threaded shaft and the operation of the releasing mechanism comprises opening the split nut to enable free movement of the plunger in the opposite direction. 10. A system for dispensing a fixed dose of two fluids and creating a mixed composition of the two fluids, the system comprising: a housing enclosing two cylindrical cavities forming two barrels;two plungers at least partially enclosed within the barrels;a motion conversion mechanism for transferring actuated pressure force applied outside the housing into movement of the plungers in a dispensing direction, wherein the motion conversion mechanism comprises at least one rack gear, at least one pinion gear, and at least one rotatable cylindrical threaded shaft connected with the two plungers;a releasing mechanism for disconnecting the two plungers from the rotatable cylindrical threaded shaft, wherein at a released position the plungers can move in an opposite direction to the dispensing direction independent of the rotational movement of the motion conversion mechanism; andtwo nozzles for each barrel connected to an outlet opening of the system, wherein the fluids pass from the barrels through the nozzles into the outlet opening of the system. 11. The system of claim 10, wherein the system comprises a split nut attached to the two plungers and engages the cylindrical threaded shaft, wherein the split nut rotates along the rotatable cylindrical threaded shaft and the operation of the releasing mechanism comprises opening the split nut to enable free movement of the plungers. 12. The system of claim 11, wherein the releasing mechanism comprises a pulling handle connected to a bar having fork-like channel structure, wherein the split nut is composed of two parts connected via a pivot connection, and the bar is associated with the two parts of the split nut such that the movement of the bar caused by pulling the handle pushes the split nut parts apart in the fork-like channel, thereby opening the split nut. 13. The system of claim 12, further comprising an actuating handle located outside the housing, and rack and pinion gears which convert a linear movement of the handle into the rotational movement of the cylindrical threaded shaft. 14. The system of claim 13, wherein at each actuation operation the fixed dose is determined by the pitch of the cylindrical threaded shaft and the diameter of the barrels. 15. The system of claim 14, wherein the rack and pinion gears are connected to the rotatable threaded shaft by two opposite crown gears enabling rotation of the cylindrical threaded shaft only in one direction. 16. The system of claim 15, wherein the crown gears design forms small gaps between the gear teeth preventing backwards movement of the plunger throughout the motion conversion mechanism operation. 17. A method for loading and dispensing a fluid, the method comprising the steps of: moving an at least one plunger through an at least one barrel in a dispensing direction by transforming pressure applied outside the at least one barrel into a linear movement of the at least one plunger in the dispensing direction, the transformation achieved through a rotational movement of a motion conversion mechanism, wherein the rotational movement comprises rotation of a split nut along a rotatable cylindrical threaded shaft, wherein the split nut is directly or indirectly connected to the at least one plunger and the cylindrical threaded shaft is part of the motion conversion mechanism,disconnecting the at least one plunger from the motion conversion mechanism for moving the at least one plunger in a direction opposite to the dispensing direction independent of the rotational movement of the motion conversion mechanism, wherein the movement of the at least one plunger in the opposite direction enables loading the fluid from a connected reservoir into the at least one barrel. 18. The method of claim 17, wherein the disconnecting comprises opening the split nut to enable free movement of the at least one plunger for loading the at least one barrel with the fluid. 19. The method of claim 18, further comprising the step of closing the split nut to reconnect the at least one plunger to the cylindrical threaded shaft for enabling the dispensing operation. 20. The method of claim 18, wherein the opening and loading further comprises pulling a handle connected to a bar having a fork-like channel structure, wherein the split nut is composed of two parts connected via a pivot connection and the fork-like channel structure is associated with the two parts of the split nut such that the movement of the fork-like channels structure, caused by pulling the handle, pushes the parts apart, thereby opening the split nut. 21. The method of claim 17, wherein the rotational movement is achieved by converting a linear movement of a handle into the rotational movement using a rack, and pinion gears. 22. The method of claim 21, wherein the rack and pinion gears are connected to the rotatable threaded shaft by two opposite crown gears enabling rotation only in one direction. 23. The method of claim 17, wherein the dispensing is selected from the group consisting of injecting, spraying and dripping. 24. The system of claim 10, wherein the ratio between the diameters of the two barrels is correlated to the required ratio between the two fluids. 25. The device of claim 4, wherein the split nut has a pair of bulges attached at the end of each part of the split nut, the bulges are designed to slide in the channels of the spread bar for opening or closing the split nut. 26. A device for dispensing a liquid comprising: at least one barrel; at least one plunger which can be disposed within the at least one barrel; a rotatable cylindrical threaded shaft; a split nut connected directly or indirectly to the at least one plunger and having an opened position and a closed position, wherein the split nut engages the threaded shaft in the closed position and is disengaged from the threaded shaft in the opened position, when the split nut is in the closed position, rotation of the threaded shaft translates into a linear movement of the split nut and the at least one plunger in a dispensing direction, and when the split nut is in the opened position it disengages from the threaded shaft, thereby allowing the at least one plunger to move opposite to the dispensing direction. 27. The system according to claim 10, wherein the two fluids are a thrombin component and a fibrinogen component.
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