EP2020963A2 - Device for cleaning bones or bone pieces - Google Patents
Device for cleaning bones or bone piecesInfo
- Publication number
- EP2020963A2 EP2020963A2 EP07718395A EP07718395A EP2020963A2 EP 2020963 A2 EP2020963 A2 EP 2020963A2 EP 07718395 A EP07718395 A EP 07718395A EP 07718395 A EP07718395 A EP 07718395A EP 2020963 A2 EP2020963 A2 EP 2020963A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- bag
- bone
- nozzles
- cleaning unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4644—Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
- A61L27/3604—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix characterised by the human or animal origin of the biological material, e.g. hair, fascia, fish scales, silk, shellac, pericardium, pleura, renal tissue, amniotic membrane, parenchymal tissue, fetal tissue, muscle tissue, fat tissue, enamel
- A61L27/3608—Bone, e.g. demineralised bone matrix [DBM], bone powder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
- A61L27/3683—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment
- A61L27/3691—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix subjected to a specific treatment prior to implantation, e.g. decellularising, demineralising, grinding, cellular disruption/non-collagenous protein removal, anti-calcification, crosslinking, supercritical fluid extraction, enzyme treatment characterised by physical conditions of the treatment, e.g. applying a compressive force to the composition, pressure cycles, ultrasonic/sonication or microwave treatment, lyophilisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3732—Diamonds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3733—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon having a heterogeneous or anisotropic structure, e.g. powder or fibres in a matrix, wire mesh, porous structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4644—Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material
- A61F2002/4646—Devices for cleaning bone graft
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the invention relates to a device for cleaning bones or bone pieces with a central cleaning unit and to these connectable containers for cleaning fluid and spent cleaning fluid.
- bone pieces are also suitable as a carrier material for bringing medication directly to defined application sites.
- Tissue banks have been set up to meet the need for implant material.
- the cleaning methods that have become known in this context are usually time-consuming and technologically complex, with correspondingly high criteria being set for cleaning with regard to the desired application in order to prevent a risk of infection.
- the cancellous structure of the bone substance is preferably used for such a cleaning, in which, however, cleaning is made more difficult by the high number of channels, cavities and blind holes.
- a corresponding surface cleaning does not lead to the desired result with regard to this structure.
- granulation of bone into very small pieces followed by cleaning in a drum under the action of a variety of different liquid chemicals has been proposed.
- a disadvantage of this method is that the granules obtained in this way are not easy to handle for larger implants.
- Bone implants are adapted to the particular purpose and it is therefore advantageous if the respectively required shape of the implant can be made by cutting from a larger piece of bone. Larger pieces of bone, however, are again only to be cleaned with greater effort, the known cleaning methods are usually also so time-consuming that it is hardly possible to provide the appropriate amount of material required also in an economical manner.
- the bone is hereby cut into small pieces, washed with water, dried and then treated with lipophilic solvents, e.g. Ethanol, freed from lipids.
- the bone material is in this case sprayed by means of nozzles with the cleaning medium under pressure, wherein a plurality of nozzles are disclosed in a circular arrangement, wherein the lower part of the nozzles is rotatably mounted.
- the previously known cleaning devices must be completely disinfected after each cleaning process.
- the spent cleaning liquid must first be removed from the cleaning unit and disposed of accordingly, after which the cleaning unit itself is completely cleaned using appropriate disinfectants or by ultrasound or by irradiation in order to be usable again for a subsequent cleaning operation.
- Such disinfecting is both time-consuming and expensive, and therefore, the present invention aims to provide a cleaning device which eliminates the need for disinfecting between each cleaning operation.
- the device according to the invention is essentially characterized in that the central cleaning unit and the container are formed as replacement parts and releasably connected to a receiving unit and that the container is formed as a bag and at least partially accommodated in fixed to the receiving unit pressure chambers. Due to the fact that those components of the cleaning device which come into direct contact with cleaning fluid or soiled cleaning fluid and the bone or bone piece to be cleaned are designed as replacement parts, these parts removed after each cleaning procedure can be removed in a simple manner and by a correspondingly new one Parts are replaced. Disinfecting the soiled parts is therefore no longer necessary.
- the central cleaning unit and the containers for the cleaning liquid and the spent cleaning liquid are thus formed as disposable or disposable parts, for ease of interchangeability, these disposable parts are detachably connected to a receiving unit.
- the container, which recording the cleaning fluid or the used cleaning fluid serve, according to the invention are designed as a bag, whereby a cost-effective training is ensured, since usually with cheap plastic bags Aus GmbH can be found.
- the bags are at least partially accommodated in pressure chambers defined on the receiving unit, and after a corresponding pressure has been built up in the pressure chamber, the cleaning liquid contained in the bag is placed under a corresponding pressure, without the bag itself being stressed in any way.
- two bags are preferably used, one bag being filled with fresh cleaning liquid and the other bag being used for receiving the used cleaning liquid.
- the cleaning liquid thus flows from the bag filled with fresh cleaning liquid through corresponding nozzles through the central cleaning unit and can then be collected in the bag disposed opposite the first bag for the spent cleaning liquid.
- the design is preferably developed in such a way that the pressure chambers and the central cleaning unit are pivotably mounted about a common pivot axis.
- the relevant parts of the entire device can be pivoted, for example, by 180 ° after a first cleaning step, so that the bag filled with at least partially used cleaning liquid enters the position of the bag originally filled with fresh cleaning liquid, whereupon a further cleaning step passes through the at least partially ver - Needed cleaning fluid can be made through the cleaning unit.
- the embodiment is preferably developed in such a way that the pressure chambers each have closure means for sealing the bag in a fluid-tight manner.
- the bag is suitably closed, a corresponding pressure in the pressure chamber and therefore at the same time also in the bag can be built up, the application of the cleaning liquid in the sequence preferably via a separate pressure line to ensure that the liquid outlet via a correspondingly small, through the Pressure line defined passage cross section under a correspondingly high pressure.
- the training is preferably further developed such that the bag is connected to a pressure line which connects the bag, bypassing the closure means with the central cleaning unit.
- the pressure chambers preferably each have a pressurized water connection, wherein, for example, a conventional H 2 0 standard connection can be used.
- the embodiment is further preferably developed in such a way that the cleaning unit has a plurality of nozzles, which are fed by the pressure line.
- a plurality of nozzles is preferably arranged on opposite sides of the bone holder in the cleaning unit.
- the axes of the nozzles can in this case be arranged substantially parallel to one another.
- the training is developed such that the nozzles are at least partially oriented in directions different from each other, so that the application of the Cleaning liquid can be made simultaneously from different directions.
- the nozzles may in this case preferably be designed with an adjustable spray angle and / or adjustable spray direction.
- the cleaning agent is sprayed onto the surface under pressure via one or more nozzles, a corresponding penetration into the channels, cavities or blind holes of spongy structures can also be ensured. Due to the mechanical impulse applied in each case by the application of pressure, in addition to the chemical cleaning, a mechanical cleaning is made possible, wherein, in particular with the choice of correspondingly easily evaporating cleaning agents, such as diethyl ether, after the impact of the liquid jet together with the mechanical cleaning by the evaporation a particularly intensive and pore-deep cleaning of the cavities and blind holes as well as a deep penetration into channels is ensured.
- correspondingly easily evaporating cleaning agents such as diethyl ether
- the cleaning agent is ejected through a plurality of nozzles with mutually different axis of their beam, the complex surface structure of cancellous bone substances can be taken into account.
- appropriate nozzle heads such a plurality of differently oriented nozzles can be realized in a simple manner, being used with advantage as a cleaning agent for the spray cleaning diethyl ether and / or alcohol.
- diethyl ether under a pressure of about 2 to 3 bar results in the impact of the detergent to "micro-explosions" and evaporation, with maximum protection of the surface structure by the formation of turbulence in the micro-cavities mechanical and chemical cleaning in a very short time succeed.
- the required cleaning time can be further reduced by the fact that the bone discs and / or the nozzles are pivoted during the spraying process.
- a lipid freedom can be ensured by selecting appropriate detergents, for which, for example, a multiple treatment with ether and / or alcohol is expedient in the further treatment steps with oxidants and buffer solutions, the elimination of germs and an optically attractive appearance Achieved bone.
- these subsequent steps need not be performed by spraying, but can also be realized by inserting the bones or bone slices in the solution and occasionally panning.
- the cleaning chamber has a holder for the bone or bone piece to be cleaned.
- the holder may in this case preferably be rotatably mounted so that spraying can take place from several sides in a simple manner.
- the training is preferably further developed such that the holder is arranged on an impeller whose drive is formed by a drive wheel associated with the impeller, the is fed by cleaning fluid from the bag.
- the bag is connected to the cleaning unit with the interposition of a filter.
- a filter In such a filter, the coarsest impurities are trapped so as not to come in contact with the bone to be cleaned again in the sequence.
- a trough 1 is designated, which receives a bone cleaning device.
- a receiving unit 2 is provided, on which a central cleaning unit 5 is releasably fixed.
- two pressure chambers 3 are attached to the receiving unit 2, each receiving a bag 4, such as an elastic pressure bag.
- the pressure chambers 3 are made in two parts and have a base part 19 and a cover part 20, wherein the cover part 20 is designed to be removable in order to facilitate the insertion of the bag 3.
- the lid part 20 is placed, with a circumferential seal 7 is provided to ensure the appropriate tightness of the pressure chamber 3.
- the pressure chambers 3 each have a vent 6 and closure means.
- the closing of the bag 4 can in this case be such that an outlet opening of the bag between the base part and the lid part 20 of the pressure chamber 3 is clamped.
- a separate closure lid can be provided, as is designated, for example, in the modified embodiment according to FIG.
- a respective pressure line 8 is connected, which passes through the wall of the pressure chamber 3 and is connected to the cleaning unit 5.
- the cleaning unit 5 has on two opposite sides in each case a plurality of nozzles 15, which are directed against the bone piece 18 to be cleaned, which is formed in the present case as a bone slice.
- the bone piece 18 is held on an impeller 13 which is rotatably mounted about an axis 12.
- the holder of the bone piece 18 may in this case be formed, for example, by radial webs, as they are denoted by 17.
- the impeller 13 is associated with a drive nozzle 14, which directs a liquid jet against the blades of the impeller 13 and thereby causes the impeller 13 in rotation.
- the device consists of a disposable insert and reusable components.
- the disposable component consists of two bags 4, which open into a common cleaning unit 5.
- One of the bags 4 is filled with cleaning liquid.
- the cleaning unit 5 is opened and a piece of bone, for example a bone slice, inserted into the holder 17 of the impeller 12 and fixed there.
- the cleaning unit 5 is closed, whereupon the cleaning unit 5 is inserted with the attached bags 4 in the rotatably mounted receiving unit 2, wherein the bags 4 are received in the respective pressure chambers 3.
- the full bag filled with fresh cleaning fluid is at the bottom and the empty bag at the top.
- the pressure chambers 3 are closed, wherein the full, filled with cleaning liquid bag is sealed.
- the sealing takes place in the region of the bag (design according to FIG. 1 and FIG. 2) or in the region of the cleaning chamber neck, wherein the bag seal is designated 9 (embodiment according to FIG. 3).
- the tub 1 is closed to protect the environment from splash water. Thereafter, the receiving unit 2 is pivoted together with the attached parts of the cleaning device by 180 °, so that the full, filled with fresh cleaning liquid bag 4 comes to rest.
- the corresponding pivot axis may in this case according to the line 22 in Figure 2 or according to the line 23 in Fig.l run.
- the vent valves 6 are opened so that air trapped in the pressure chambers 3 can escape. Pure water is then pumped into the upper pressure chamber, the corresponding water connection being denoted by 16. The filling of water takes place until the upper pressure chamber 3 is full, whereupon the venting valve 6 is closed. Hydraulic pressure is then applied via the connection 16, which acts directly on the cleaning liquid contained in the bag when the upper bag is closed.
- the pressurized cleaning liquid can exit via the pressure line 8 and reach the central cleaning unit 5, the cleaning liquid being distributed to the plurality of high-pressure nozzles 15.
- the cleaning can be carried out until all the cleaning liquid has been squeezed out of the upper bag, the spent cleaning liquid, together with the material rinsed out of the bone, passing through a built-in filter 10 into the lower bag.
- the pressure water applied to the upper pressure chamber is turned off and the opening of the lower bag is closed.
- the vent valve of the upper pressure chamber is opened to drain the water from the pressure chamber.
- the upper bag is opened and there is again a VerSchwenkung of the entire device by 180 °, wherein the removed dirt particles are collected by dirt trap lips 11 so that they can not contaminate the bone again.
- the full bag will again be at the top and another cleaning step may be taken.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Transplantation (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Botany (AREA)
- Molecular Biology (AREA)
- Epidemiology (AREA)
- Physical Education & Sports Medicine (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Zoology (AREA)
- Cardiology (AREA)
- Urology & Nephrology (AREA)
- Prostheses (AREA)
- Meat, Egg Or Seafood Products (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0038906U AT9318U1 (en) | 2006-05-15 | 2006-05-15 | DEVICE FOR CLEANING BONES OR BONE PIECES |
PCT/AT2007/000179 WO2007131249A2 (en) | 2006-05-15 | 2007-04-19 | Device for cleaning bones or bone pieces |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2020963A2 true EP2020963A2 (en) | 2009-02-11 |
Family
ID=38117160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07718395A Withdrawn EP2020963A2 (en) | 2006-05-15 | 2007-04-19 | Device for cleaning bones or bone pieces |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2020963A2 (en) |
AT (1) | AT9318U1 (en) |
WO (1) | WO2007131249A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101326609B1 (en) * | 2013-06-07 | 2013-11-20 | (주)코리아덴탈솔루션 | Automated for teeth processing machine for bone graft material |
CN113262086A (en) * | 2021-05-14 | 2021-08-17 | 青岛大学附属医院 | Electric sound wave pulse brushing device for artificial joint infection renovation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3721144C1 (en) * | 1987-06-26 | 1988-09-22 | Helmut Steinhilber | Device for cleaning liquid clinical thermometers |
FR2699408B1 (en) * | 1992-12-21 | 1995-03-24 | Bioland | Method for treating bone tissue and corresponding implantable biomaterials. |
US20040094190A1 (en) * | 2002-11-15 | 2004-05-20 | Steris Inc. | Water displacement/vortex inhibiting device |
AT413075B (en) * | 2003-02-25 | 2005-11-15 | Austria Wirtschaftsserv Gmbh | METHOD FOR PRODUCING A BONE IMPLANT MATERIAL AND DEVICE FOR CARRYING OUT THIS METHOD |
DE102004029970B3 (en) * | 2004-06-21 | 2006-03-02 | Simmoteit, Robert, Dr. | Washing machine for medical instruments comprises water supply pipe with holder at one end which attaches it to support, e.g. instrument basket, pipe being rotatable about its axis and holder also being rotatable and of adjustable height |
-
2006
- 2006-05-15 AT AT0038906U patent/AT9318U1/en not_active IP Right Cessation
-
2007
- 2007-04-19 EP EP07718395A patent/EP2020963A2/en not_active Withdrawn
- 2007-04-19 WO PCT/AT2007/000179 patent/WO2007131249A2/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007131249A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007131249A2 (en) | 2007-11-22 |
WO2007131249A3 (en) | 2008-12-24 |
AT9318U1 (en) | 2007-08-15 |
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Inventor name: VUJANIC, DUSAN Inventor name: KMENT, CHRISTOPH Inventor name: VUJANIC, ALEKSANDAR |
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Effective date: 20120327 |