Device for mixing and storing polymethyl methacrylate bone cement with pressure pump and ampoule breaker 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US2017291153 A1 2017-10-12 [US20170291153] / 2017-10-12
申请号/申请日
2017US-15479919 / 2017-04-05
发明人
VOGT SEBASTIAN;KLUGE THOMAS;
申请人
HERAEUS MEDICAL;
主分类号
IPC分类号
A61B-017/88B01F-003/12B01F-007/16B01F-007/20B01F-015/00B01F-015/02
摘要
(US20170291153) A device mixes bone cement and stores parent components of the bone cement.  The device has a cartridge comprising an interior, that is closed on one side by a movable delivery plunger, a receptacle comprising side walls for receiving a monomer liquid container that are closed at least in some regions.  The receptacle has at least one deformable closed side wall, a screen and/or a filter arranged below the receptacle so that the contents of the opened monomer liquid container flow through the screen and/or the filter.  The device further has a connecting line through which the monomer liquid is to be routed into the interior of the cartridge, a hollow cylinder which is connected to the connecting line and which is connected to the receptacle by way of a fluid connection so that the hollow cylinder is arranged in a fluid line between the receptacle and the interior of the cartridge.  A pump plunger is arranged in the hollow cylinder, which is axially displaceable in the hollow cylinder, and an opening device, which is movably mounted against the deformable side wall of the receptacle.  The opening device extends into the hollow cylinder, wherein, by pressing the pump plunger into the hollow cylinder, the opening device is to be pressed against the deformable side wall of the receptacle so that the deformable side wall deforms such that a monomer liquid container located in the receptacle is to be opened by the pressure of the opening device.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2016DE-10106261 2016-04-06
主权利要求
(US20170291153) We claim: 1.  A device for mixing bone cement and for storing the parent components of the bone cement, wherein at least a monomer liquid and a cement powder are parent components of the bone cement, the device comprising: a cartridge comprising an interior for mixing the bone cement, wherein the interior is closed on one side by a movable delivery plunger;   a receptacle comprising side walls for receiving a monomer liquid container, which side walls are closed at least in some regions, wherein the receptacle has at least one deformable closed side wall;   at least one selected from a screen and a filter which is or are arranged below the receptacle so that the contents of the opened monomer liquid container flow through the at least one selected from the screen and the filter;   a connecting line through which the monomer liquid is to be routed into the interior of the cartridge;   a hollow cylinder connected to the connecting line and which is connected to the receptacle by way of a fluid connection so that the hollow cylinder is arranged in a fluid line between the receptacle and the interior of the cartridge, wherein a pump plunger is arranged in the hollow cylinder, which is axially displaceable in the hollow cylinder; and   an opening device movably mounted against the deformable side wall of the receptacle, wherein the opening device extends into the hollow cylinder, wherein, by pressing the pump plunger into the hollow cylinder, the opening device is to be pressed against the deformable side wall of the receptacle so that the deformable side wall deforms in such a way that a monomer liquid container located in the receptacle is to be opened by the pressure of the opening device. 2. The device according to claim 1, wherein the monomer liquid is flowable out of the opened monomer liquid container into the hollow cylinder, and the connecting line connects the hollow cylinder to the interior of the cartridge in such a way that, by means of the pump plunger, the monomer liquid is to be pressed out of the hollow cylinder through the connecting line into the interior of the cartridge by pressing the pump plunger into the hollow cylinder. 3. The device according to claim 1, further comprising: a mixing device, which is externally operable, is arranged in the cartridge, wherein the mixing device is operable by way of a mixing rod which is guided through a feed-through in the delivery plunger into the interior of the cartridge and which is movably mounted. 4. The device according to claim 1, wherein the cement powder is contained in the interior of the cartridge. 5. The device according to claim 1, wherein a filter which is impermeable to the cement powder and permeable to the monomer liquid is arranged between the connecting line and the interior of the cartridge. 6. The device according to claim 1, wherein the device has a stand in which at least part of the connecting line is arranged, wherein the cartridge is releasably connected to the stand by way of a screw thread, wherein the filter which is impermeable to the cement powder and permeable to the monomer liquid is preferably optionally arranged in the connection between the cartridge and the stand. 7. The device according to claim 1, wherein the receptacle leads into the hollow cylinder at a circumferential surface of the hollow cylinder. 8. The device according to claim 1, wherein the connecting line is connected to the hollow cylinder at the lowest point of the hollow cylinder, wherein the pump plunger is particularly preferably arranged on the opposite side of the hollow cylinder. 9. The device according to claim 1, wherein the hollow cylinder has, on the side opposite the pump plunger, a conical, semi-conical or otherwise downwardly tapering base, wherein the face of the pump plunger, which faces the base of the hollow cylinder, forms a negative shape of the base. 10. The device according to claim 1, wherein the device has a tensioned pressure spring and at least one detent, wherein the pressure spring and/or the pump plunger is or are releasably arrested by the detent, wherein the pressure spring exerts a pressure on the pump plunger, when the detent is released so that the pump plunger is pressed into the hollow cylinder. 11. The device according to claim 1, wherein the connecting line between the hollow cylinder and the interior of the cartridge has an upwardly pointing loop, wherein the highest point of the loop is located above the mouth of the receptacle leading into the hollow cylinder. 12. The device according to claim 1, wherein the volume in the hollow cylinder is smaller than or equal to the volume of the monomer liquid in the monomer liquid container. 13. The device according to claim 1, wherein the opening device is a lever which is mounted against the receptacle to be rotatable about an axis, wherein a free end of the lever is pressable against the deformable side wall of the receptacle by the pump plunger, so that the free end of the lever deforms the deformable side wall in such a way that a monomer liquid container located in the receptacle and matching the receptacle is to be opened by the pressure of the free end of the lever, in particular is to be broken open or split open or punctured. 14. The device according to claim 13, wherein the free end, with the lever, is arranged inside the hollow cylinder, and abuts against the deformable side wall, in such a way that the lever, starting from the axis with the free end and the deformable side wall, forms a triangle with a web as a leg opposite the corner formed by the axis of rotation, wherein the triangle is arranged in the hollow cylinder. 15. The device according to claim 1, wherein the receptacle is a hollow cylinder and/or the receptacle consists of an elastomer or comprises an insert made of an elastomer, wherein the elastomer has a Shore hardness of greater than 60. 16. The device according to claim 1, wherein a shoulder for supporting the monomer liquid container is arranged in the receptacle, wherein the shoulder is smaller than half the area of the base of the monomer liquid container or the cross-section of the monomer liquid container. 17. The device according to claim 1, wherein, upon a movement of the pump plunger into the hollow cylinder, a free end of the opening device presses on the deformable side wall in such a way that the vector of the force has a component which is directed towards the screen and/or filter and/or which presses a monomer liquid container inserted in the receptacle into the receptacle in the direction of the shoulder. 18. The device according to claim 1, wherein the opening device extends into the hollow cylinder above the fluid connection. 19. The device according to claim 1, wherein the pump plunger is fixable in place by a manually releasable latching device which, after an axial displacement of the pump plunger over the opening device in the hollow cylinder, locks the pump plunger above the mouth of the fluid connection to the receptacle in the hollow cylinder, so that the pump plunger in the hollow cylinder is not movable over the mouth of the fluid connection when the latching device is not released, wherein the latching device is arranged on or in the pump plunger or extends through the pump plunger. 20. A method for mixing a bone cement chronological comprising: A) pressing the pump plunger into a hollow cylinder of the device according to claim 1, wherein the opening device is pressed against the deformable side wall of the receptacle as a result of the movement of the pump plunger;   B) opening the monomer liquid container containing the monomer liquid as a result of the deformation of the side wall of the receptacle by the opening device;   C) flowing the monomer liquid out of the opened monomer liquid container and into the hollow cylinder;   D) pressing the pump plunger further into the hollow cylinder and the monomer liquid is thereby pressed out of the hollow cylinder and through a connecting line into the interior of a cartridge, wherein the cement powder is located in the interior of the cartridge; and   E) the monomer liquid and the cement powder are mixed in the interior of the cartridge. 21. The method according to claim 20, wherein the movement of the pump plunger is stopped by a latching device in A) and the latching device is released prior to D) to enable the pump plunger to be pressed further into the hollow cylinder. 22. The method according to claim 20, wherein the pump plunger is pressed into the hollow cylinder by a tensioned spring element, wherein a latching means or a detent, engaging in the pump plunger and/or in the spring element, is released beforehand. 23. The method according to claim 20, wherein the monomer liquid and the cement powder are mixed in the interior by a mixing device in that the mixing device is operated by moving a mixing rod, which is guided into the interior of the cartridge to be rotatable and longitudinally displaceable, wherein, after the mixing process, the mixing rod is withdrawn from the interior of the cartridge until it comes to a stop and, after being withdrawn until it comes to a stop, the mixing rod is breakable at a predetermined breaking point. 24. The method according to claim 20, wherein the cartridge containing the fully mixed cement paste is released from the connecting line, the hollow cylinder and the receptacle, and the fully mixed cement paste is delivered from the interior of the cartridge by the propulsion of a delivery plunger, which is mounted to be axially movable in the cartridge and which delimits the interior of the cartridge on one side. 25. The method according to claim 20, wherein the monomer liquid is movable into the cartridge by a vacuum in the interior of the cartridge, wherein the vacuum in the cartridge is effected by evacuating the interior of the cartridge by means of the delivery plunger arrested against the cartridge.
法律状态
(US20170291153) LEGAL DETAILS FOR US2017291153  Actual or expected expiration date=2037-04-05    Legal state=ALIVE    Status=PENDING     Event publication date=2017-04-05  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US15479919  Application date=2017-04-05  Standardized application number=2017US-15479919     Event publication date=2017-04-05  Event code=US/EXMR  Event type=Administrative notifications  USPTO Examiner Name Primary Examiner: GRIFFIN, WALTER DEAN    Event publication date=2017-04-05  Event code=US/ART  Event type=Administrative notifications  USPTO Art Group  ART=1774     Event publication date=2017-04-05  Event code=US/DK  Event type=Examination events  Attorney Docket Number Docket Nbr: 117400-20    Event publication date=2017-04-05  Event code=US/CUST  Event type=Examination events  Attorney/Agent Customer Number Customer Nbr: 27384    Event publication date=2017-04-05  Event code=US/ENT  Event type=Administrative notifications  Entity Status Set to Undiscounted Business Entity Status: UNDISCOUNTED    Event publication date=2017-04-05  Event code=US/AIA  Event type=Administrative notifications  First Inventor File Indicated:  AIA=Yes     Event publication date=2017-04-05  Event code=US/APST  Event indicator=Pos  Event type=Examination events  PAIR Application Status    Event publication date=2017-04-05  Event code=US/DISCSEF  Event type=OAI  Electronic Information Disclosure Statement    Event publication date=2017-04-05  Event code=US/IDS  Event type=Examination events  Event type=OAI  Information Disclosure Statement Filed    Event publication date=2017-04-05  Event code=US/ENT  Event type=Administrative notifications  Entity Status Set to Undiscounted    Event publication date=2017-04-13  Event code=US/APPFILEREC  Event type=Administrative notifications  Event type=OAO  Filing Receipt    Event publication date=2017-05-22  Event code=US/PTARDY  Event indicator=Pos  Event type=Examination events  Patent Term Adjustment - Ready for Examination    Event publication date=2017-05-24  Event code=US/POAC  Event type=Change of name or address  Change in Power of Attorney (May Include Associate POA)    Event publication date=2017-05-24  Event code=US/RECEIPTUP  Event type=Administrative notifications  Event type=OAO  Filing Receipt - Updated    Event publication date=2017-06-19  Event code=US/DOCK  Event indicator=Pos  Event type=Examination events  Case Docketed to Examiner    Event publication date=2017-08-22  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment Owner: HERAEUS MEDICAL GMBH, GERMANY ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:VOGT, SEBASTIAN, DR. KLUGE, THOMAS, DR. SIGNING DATES FROM 20170531 TO 20170614 REEL/FRAME:043356/0593     Event publication date=2017-10-12  Event code=US/A1  Event type=Examination events  Application published  Publication country=US  Publication number=US2017291153  Publication stage Code=A1  Publication date=2017-10-12  Standardized publication number=US20170291153     Event publication date=2017-10-12  Event code=US/PGPUBN  Event indicator=Pos  Event type=Examination events  Event type=OAO  PG-Pub Issue Notification    Event publication date=2018-02-23  Event code=US/IDS  Event type=Examination events  Event type=OAI  Information Disclosure Statement Filed
专利类型码
A1
国别省市代码
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