Source: https://patents.google.com/patent/DE202005014270U1/en
Timestamp: 2020-01-20 11:36:53
Document Index: 596377654

Matched Legal Cases: ['art 10', 'art 10', 'art 10', 'art 10', 'arts 21', 'art 14', 'art 14']

DE202005014270U1 - Insertion aid for femur implant, comprises guiding unit for striker and particularly safe holding arrangement - Google Patents
Insertion aid for femur implant, comprises guiding unit for striker and particularly safe holding arrangement
DE202005014270U1
DE202005014270U1 DE200520014270 DE202005014270U DE202005014270U1 DE 202005014270 U1 DE202005014270 U1 DE 202005014270U1 DE 200520014270 DE200520014270 DE 200520014270 DE 202005014270 U DE202005014270 U DE 202005014270U DE 202005014270 U1 DE202005014270 U1 DE 202005014270U1
DE200520014270
2005-09-09 Application filed by Waldemar LINK GmbH and Co KG filed Critical Waldemar LINK GmbH and Co KG
2005-09-09 Priority to DE200520014270 priority Critical patent/DE202005014270U1/en
2007-01-11 Publication of DE202005014270U1 publication Critical patent/DE202005014270U1/en
2015-09-10 Anticipated expiration legal-status Critical
238000003780 insertion Methods 0 abstract title 2
210000000689 upper leg Anatomy 0 title 1
The prosthesis (1) has a shaft (10) to be inserted into a cavity prepared at the bone, a collar (11) and a conical segment to be connected to the ball element. A fork located at the front of the insertion aid (2) is clamped to the neck (12) of the implant (1) additionally held by two pins protruding from a bearing element inserted into matching bores at the implant (1). The striker (31) is guided through a hollow shaft (21) towards the collar (11) at the implant (1) and has a rounded tip .
The The invention relates to an insertion instrument for an endoprosthesis comprising a Neck part and has to be used in a medullary canal stem portion, wherein the instrument a clamping device with a holding fork and a Anvils that are designed to be in a stretched condition hold the prosthesis stem and release it in the relaxed state, and a beater.
to Connection of endoprostheses to the end of a long bone, like the femur, are common Prothesesenschäfte provided, which are introduced into a medullary canal of the tubular bone. For this purpose, the medullary cavity must be open during the implantation of the prosthesis Interior to the extent necessary, and finally the Insert shaft of the prosthesis. To become a solid and secure Seat of the prosthetic stem to enter the tubular bones, should the cavity to be created in the medullary cavity as close as possible to the contour of the adapted to be accommodated. Subsequent corrections of the position lead the prosthetic stem on expansions of the cavity, and thus a less secure fit. The long-term stability of the prosthesis is at risk. This is especially true if the implantation of the endoprosthesis should be cementless.
Various instruments have become known with which the prosthesis can be implanted with its shaft. From the EP B 0 852 931 a deployment instrument is known, which has a grip part with a coupling, to which a rasp for clearing the cavity in the medullary cavity or a shaft of the endoprosthesis to be inserted can be arranged. The rasp is designed as a form rasp and serves to form a cavity corresponding to the contour of the shaft to be inserted. Once the cavity has been created, the rasp can be removed from the grip and now the shaft of the endoprosthesis can be connected to the grip part. The handle now acts as an insertion tool. A similar Einsetzinstrument is from the EP B 0 956 824 known. The grip part has a remote-controlled quick coupling, by means of which the rasp or the prosthesis shaft to be inserted is held on the grip part. Next, the handle part at its rear, clutch remote end an anvil. This serves as a striking head. Thus, with tight fit of the shaft in the medullary cavity, the endoprosthesis can be driven by hammer blows into their final position.
One Disadvantage of the known insertion instruments is that position changes, as they occur especially with corrections, to a widening and thus to a deterioration of the seat of the shaft in the Guide the medullary canal of the bone. This is especially true if corrections only when hitting be made. It can also come unintentionally, if due to Difficult access conditions the hammer blows from unfavorable direction on the impact head to meet. This not only leads to incorrect positioning of the Shaft and thus the prosthesis in relation to the bone, but also to a worse seat and thus to a danger of premature Easing.
Of the Invention is based on the object, a use of the instrument to improve the above-mentioned type so that it is a safe and position-accurate insertion simplified.
The inventive solution lies in the characteristics of the independent Claim. Advantageous developments are the subject of the dependent claims.
According to the invention is at an insertion instrument for an endoprosthesis that has a neck and a medullary cavity to be used shaft part comprising a clamping device with a retaining fork and an abutment that are designed to in a tensioned state to hold the endoprosthesis and a release relaxed state, and a beating device, provided, that on the clamping device, a guide rail for a striking element fixed and aligned so that one of the guide rail certain path on an end face in the clamping device held endoprosthesis leads.
First, some terms are explained:
A holding fork is understood to mean a receptacle which is open to one side in order to introduce the held object into or out of the receptacle. The opening when the object is closed by a lock, but this is not required.
Under an abutment becomes one for transmission of compressive forces trained element understood that the holding fork opposite is arranged to hold the part of the endoprosthesis to be held between them.
Under a guide rail is understood an arrangement that the striker both a Position as well as a direction of movement (path) pretends.
The invention is based on the idea to achieve a positionally accurate insertion of the shaft portion of the prosthesis into the medullary cavity with the insert instrument such that the position of the prosthesis Both during insertion, as well as when hitting is precisely defined. With the deployment instrument according to the invention, the precise guidance of the prosthesis is ensured not only in the phase of insertion into the medullary cavity, but also beyond during the phase of wrapping. With the guide for the impact element arranged on the insert instrument according to the invention, it is achieved that the impact force is exerted in a precisely defined manner on the prosthesis to be implanted. Misalignments that may result from unavoidable variations of an unguided percussion instrument, such as a free handheld hammer, are effectively avoided. This is particularly a great advantage if the accessibility of the implantation site is restricted for the surgeon. Especially under difficult access conditions, it is conventionally due to the then not possible in exact extension of the holder instrument possible guidance of the percussion instrument to deviations that lead to incorrect positioning. With the insert instrument designed according to the invention, position-accurate implantation can be achieved in a simple and reliable manner even under such difficult conditions.
Although not absolutely necessary, but it is nevertheless appropriate if the guide rail is closed laterally. It is particularly preferred if they as a pipe running is. It can then at the same time as a part of the handle to grasp to operate the surgeon. The closed version prevents it from entering of foreign bodies. The risk of inhibition or hardening of the striking element in the lead is thereby almost eliminated.
Especially it is preferred if the impact element in the guide rail inserted ram is. The pestle is due to its elongated shape in preferably as a tube with a contoured inner shape running guide rail optimally guided. Of the Shank of the plunger is used but not just for leadership, but does not act because of its by the relatively long extension inconsiderable Mass even already as impact element. An optional addition to the End of the ram provided Impact head can therefore be made smaller. The insertion instrument comes thereby with relatively small Extra weight, and is due to the distributed mass of the plunger in handling technology cheaper Balanced way. The impact head is preferably as a handle executed. Thus, the plunger of both Hand operated as well as over his as anvil surface trained backside be used as impact head.
Of the Tappet points at its front ends a point which is rounded off with advantage is. Opposite one blunt tip hereby gives the advantage that at one Angular impact on a face of the endoprosthesis the danger notches and damage is reduced. Notches or other damage would weaken the Denture lead material at this point, resulting in more appropriate Reduction of stability and thus the long-term durability of the prosthesis can lead. The rounded one execution The tip also offers an advantage in the case when the ram impact receiving face the prosthesis is not quite level.
As already mentioned Due to the mass distribution of the plunger, the insertion tool is good balanced. To this for the handling cheap Property also when driving the prosthesis using the To maintain pestle, is the plunger expediently equipped with a recoil damper. This serves to jump back of the plunger to prevent or at least reduce the blow. Such Jump back would like a setback act, and the risk of an undesirable change in position of the Lead insertion instrument. This is countered by the recoil damper. The for the recoil damper required Additional effort is extremely low. So it can already be enough on the shaft of the plunger Frictional element provide that a frictional force on the guide rail exercises. Especially useful it, on the shaft of the plunger one Forming circumferential groove, in which an O-ring is inserted. The dimensions of the O-ring are chosen so that it is on the inside of the wall of the guide rail designed as a tube is applied.
Of the Pestle is segmented with advantage, one segment having a smaller cross-section than the other. Is the segment with the smaller cross section in the direction of The holding device seen in front, so can with the at the transition shoulder to the wider cross-section segment a depth stop for the Tappet formed be. The risk of slipping out and driving too far the plunger to the to be implanted endoprosthesis is minimized thereby. Which thus devoted gradual rejuvenation of the shaft to the top does not allow just the formation of a stop, but also facilitates the replacement of the O-ring from the top of the ram.
According to a further aspect of the invention, a position marker for a correct angular position of the endoprosthesis on the insertion instrument is provided on the clamping device. This provides the surgeon with an easy-to-use indication that the prosthesis is in the correct angular orientation on the insertion instrument is tert. The position marker can be designed in different ways, in the simplest case by markings. It has been proven to perform the position markings as projections on the clamping device, which are designed to engage in a recess on the endoprosthesis in the tensioned state. If the projections engage the recesses on the endoprosthesis only in the correct angular position, the endoprosthesis can be fixed in a simple and expedient manner in its relative position to the insertion instrument. A visual control of the orientation is superfluous. The orientation remains even under difficult circumstances with poor accessibility available, or may optionally be easily restored even without eye contact. Preferably, the projection is arranged on the abutment and dimensioned so that it is about 0.1 mm to 1 mm larger than the depth of the Rezesses in one end face of the endoprosthesis. This ensures that the contact between the abutment and the endoprosthesis passes over the projections, more precisely, that the tips of the projections rest on the bottom of the recesses. Incidentally, the abutment need not have any contact with the endoprosthesis; in particular, the abutment can remain free from the end face of the endoprosthesis. This is a not to be underestimated advantage, since not infrequently, the end face of the endoprosthesis is part of a dimensionally stable holding part, which must be protected as possible to ensure dimensional positioning of joint components as possible from damage.
at an expedient embodiment the holding fork is designed such that in it a seat for a Fixing cone of the holding part is incorporated. In the seat is the mounting cone with its lower edge in the retaining fork been recorded. The seat does not need a great depth to show a depth of up to 2.5 mm, preferably 1 mm, is sufficient regularly. With This seat is achieved that the retaining fork only in the lower edge area needs to act on the mounting cone. The sensitive one Cone surface remains thus spared from influences by the retaining fork. damage the lateral surface can prevented in this way.
The Invention will now be described with reference to the accompanying drawings described in more detail, in the one embodiment is shown. Show it:
1 a plan view of an embodiment of an inventive insertion instrument in the tensioned state with an endoprosthesis;
2 a view of the insertion according to 1 in the relaxed state;
3 a partial section through the in 1 illustrated insertion instrument;
4 a frontal view of a portion of a clamping device of in 1 illustrated insertion instrument; and
5 a partial sectional view of the clamping device with the male endoprosthesis.
The insertion instrument according to the embodiment is of a generally pliers-like basic shape with a grip part in the rear region and a tensioning part (hereinafter referred to as tensioning device). 29 in the front area. The two areas are separated by a swivel joint 29 , The handle part has two rod-like backwards extending handles 21 . 22 on. They are in a compressed position by means of a latching device 24 fixable.
At the front end of the insertion instrument, in its entirety with reference to the figure 2 is designated, is the clamping device 20 arranged. It essentially consists of a fork 25 at the front end of the handle 21 connected thigh. The fork 25 has a receiving opening, in which the endoprosthesis to be clamped 1 is to use. The clamping device 20 points further to the front end of the handle 22 formed thigh an abutment on. It is formed by a sliding block 26 pivotally mounted at the front end so as to provide a sliding back and forth motion when closing and opening the tensioner 20 is executing. The sliding block 26 has one of the holding fork 25 facing end face, at the two projections 28 are arranged. The projections are pin-shaped and have a length of about 4 mm. Are oriented so that they are on the holding fork 25 are directed, and that their opening area.
The construction of the guide rails in the insertion instrument will now be described. The handle 21 is tubular in its rear area. He has a bore extending through its entire length 23 on. It acts as a guide rail for a plunger 31 , The pestle 31 is designed as a striking tool and consists essentially of his in two segments 34 . 35 divided shaft with a rounded tip 36 , At the rear end of the pestle 31 is a handle 32 arranged for actuation by the operator. The pestle 31 Like the rest of the insertion tool is made of stainless steel. Due to the mass of the ram 31 including the handle 32 In many cases, by hand power sufficient impact effect can be achieved. In the event that a higher impact is required, the return side of the handle 32 with an anvil surface 33 Mistake. On them can be acted with hammer blows, whereby the from the point 36 transmitted impact effect can be significantly increased.
At the pestle 31 is on its outer surface in the area of the first segment 34 a circumferential groove 37 educated. There is an O-ring in it 38 arranged. He is so measured that he is not flush with the surface of the shaft segment 34 but it protrudes so far that it is the inner wall of the hole 31 contacted. As a result, the O-ring exerts a frictional force, which is the movement of the plunger 31 directed against.
The O-ring 38 can thus return the plunger 31 after impact, especially with hammer blows on the Ambusfläche 33 , largely prevent.
To explain the mode of action of the insert instrument, the endoprosthesis to be implanted is briefly presented below. The endoprosthesis is a shaft prosthesis, as it forms the femoral component of a total hip joint prosthesis. The shaft prosthesis consists essentially of an elongated bent shaft part 10 , a support collar 11 and one on the support collar 11 uplifting neck 14 , In the outer area of the neck 14 is a cone 13 educated. It serves to receive a joint ball. The lateral surface of the cone 13 as well as its front side 16 define the positioning of the joint ball (not shown). They are precisely manufactured and must be protected against damage. The shaft part 10 serves to be implanted in the medullary cavity of the (previously opened) femur. The shaft part 10 can be designed for cemented or cementless implantation. Especially in the case of cementless implantation, a good fit to the surrounding structure in the medullary cavity is important. Directional changes of the endoprosthesis 1 or the shaft part 10 during insertion or insertion, widening of the medullary canal will occur, compromising the fit and thus reducing the stability and safety of anchoring the endoprosthesis in the femur. To ensure safe guidance of the endoprosthesis 1 when inserting and turning in, it is firmly attached to the insertion instrument 2 clamped. This happens with the clamping device 20 in the manner described below.
The clamping device 20 with her holding fork 25 and their counterpoint 26 is designed to endoprosthesis 1 to the cone 13 of the neck 14 to keep. In the holding fork 25 is a circular step incorporated as a seat 27 for the bottom edge 15 of the cone 13 serves. The depth of the seat 27 is chosen so that the cone 13 about 1 mm deep in the retaining fork 25 dips. Only in this area is there a contact between the holding fork 25 and cone 13 , This area is typically uncritical for connection to the condyle because the condylar heads are not so far on the cone 13 extend. In the remaining area of the cone 13 attacks the seat 27 not on, so that it is protected from damage. The counter bearing 26 acts with the front side 16 of the cone 13 together. It is not right on the front page 16 but attacks with its projections 28 in corresponding recesses 18 at the front 16 of the cone 13 one. Here is the height of the projections 28 slightly larger than the depth of the recesses 18 , Has proven to have a height of 4 mm for the projections 28 at a depth of 3 mm for the recesses 18 , This ensures that the projections 28 with its tip in the bottom of the recesses 18 rest without the front side 16 even from the slide block 26 is touched. There remains a safety gap of about 1 mm. The sliding block 26 with the projections 28 is by squeezing the handle parts 21 and 22 moved forward (in the tensioning direction). The projections dive 28 in the recesses 18 and squeeze the cone 13 with its bottom edge 15 in the seat 27 the holding fork 25 , This is the endoprosthesis 1 firmly clamped to the insertion instrument. The angular position is through the projections 28 Are defined. They also act as position markers. The prosthesis 1 can now be performed safely and accurately by the surgeon.
In the first step of implantation, the prosthesis 1 with her shaft 10 by means of the insertion instrument 2 introduced into the medullary canal. This is possible over about 2/3 to 3/4 of the length of the shaft 10 because of its conicity usually without special effort. Thereafter, the increasingly tighter fit of the prosthetic stem requires 10 in the bed of the medullary cavity an ever greater force, until reaching the final position the endoprosthesis 1 must be taken.
This can be done with the insertion instrument according to the invention, without the instrument needs to be discontinued. The surgeon operates by means of the handle 32 the pestle 31 , The arrangement of the retaining fork 25 with the counter bearing 26 is so on the location of the hole 23 matched that of her specific path 30 the plunger is chosen so that the tip 36 on the collar 11 on the endoprosthesis 1 meets. The one from the pestle 31 transmitted impulse is thus directly on the collar 11 and thus on the shaft 10 passed without the cone 13 and the neck part 14 to charge. This direct transfer is not only gentle on the cone 13 and the neck part 14 the endoprosthesis 1 but allows it, even with relative weak blows by the pestle 31 to achieve a high driving effect.
The angle of placement of the endoprosthesis relative to the path 30 of the plunger (angle α) is about 20 degrees to 40 degrees (preferably 25 degrees) and is chosen so that in the position of the endoprosthesis 1 in which the highest forces required for driving in, the guide path 30 is approximately perpendicular to the section surface of the bone. This ensures optimum force transmission for this section requiring a particularly high expenditure of force.
In the insertion instrument according to the invention, the endoprosthesis can be clamped positionally and precisely to the angle of the insertion instrument, and can be inserted precisely into the medullary canal in this well-defined position. The look-up required to reach the fixed end position of the prosthesis can be performed with the insertion instrument, whereby the guidance of the plunger 31 It is ensured that the momentum forces by hitting a favorable spot on the collar 11 the endoprosthesis 1 be initiated. The sensitive cone 13 the endoprosthesis 1 is protected from absorbing impact forces. The hammering can be done using the integrated plunger 31 without changing the instrument. If necessary, can over the Ambusfläche 33 at the rear end of the pestle 31 additionally be looked up with a hammer.
Insertion device for an endoprosthesis, which has a neck part ( 12 ) and to be used in a medullary canal shaft part ( 10 ), comprising a tensioning device ( 2 ) with a holding fork ( 25 ) and an abutment ( 26 ), which are designed, in a tensioned state, the endoprosthesis ( 1 ) and release a relaxed state, and a beating device ( 3 ), characterized in that on the tensioning device ( 2 ) a guide rail ( 23 ) is fixedly arranged for an impact element and is oriented such that a path determined by the guide rail leads to an end face of the endoprosthesis obtained in the tensioning device.
Insertion tool according to claim 1, characterized in that the guide rail ( 23 ) closed is.
Insertion tool according to claim 2, characterized in that the guide rail ( 23 ) is designed as a tube.
Insertion instrument according to one of the preceding claims, characterized in that in the retaining fork ( 25 ) a seat ( 27 ) for a fastening cone ( 13 ) of the prosthesis is incorporated.
Insertion tool according to claim 4, characterized in that the seat ( 27 ) has a depth of less than 2 mm, preferably less than 1 mm.
Insertion tool according to one of the preceding claims, characterized in that the striking element is inserted into the guide rail ram ( 31 ).
Insertion tool according to claim 6, characterized in that the plunger ( 31 ) at its rear endoprosthesis remote end a handle ( 32 ) having.
Insertion instrument according to claim 7, characterized in that the handle ( 32 ) a clubface ( 33 ) having.
Insertion tool according to one of claims 6 to 8, characterized in that the plunger ( 31 ) a rounded tip ( 36 ) having.
Insertion instrument according to one of claims 6 to 9, characterized in that a Rückspringdämpfer is provided for the plunger.
Insertion tool according to claim 10, characterized in that the rebound damper is designed as one in a circumferential groove ( 37 ) arranged O-ring ( 38 ) is executed.
Insertion instrument according to one of claims 6 to 11, characterized in that the plunger ( 31 segmented, where one segment ( 35 ) has a smaller cross section than the other segment ( 34 ) having.
Insertion instrument according to one of the preceding claims, characterized in that on the clamping device ( 2 ) Position marks are provided for an angular correct position of the endoprosthesis.
Insertion tool according to claim 13, characterized in that the position mark a projection ( 28 ) on the clamping device ( 2 ), which is to intervene in a recess ( 18 ) on the endoprosthesis ( 1 ) is formed in the tensioned state.
Insertion tool according to claim 14, characterized in that the projection ( 28 ) on the abutment ( 26 ) and is preferably 0.1 mm to 1 mm larger than the depth of the recession ( 18 ).
DE200520014270 2005-09-09 2005-09-09 Insertion aid for femur implant, comprises guiding unit for striker and particularly safe holding arrangement Expired - Lifetime DE202005014270U1 (en)
DE200520014270 DE202005014270U1 (en) 2005-09-09 2005-09-09 Insertion aid for femur implant, comprises guiding unit for striker and particularly safe holding arrangement
CA 2621008 CA2621008C (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a medullary cavity
PCT/EP2006/008679 WO2007028588A2 (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a marked chamber
US11/997,593 US8157808B2 (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a medullary cavity
KR20087004186A KR101317052B1 (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a marked chamber
RU2008113186/14A RU2412675C2 (en) 2005-09-09 2006-09-06 Instrument for installation of endoprosthesis with leg inserted into medullary space
AU2006289304A AU2006289304B2 (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a medullary cavity
ES06791866T ES2458302T3 (en) 2005-09-09 2006-09-06 Insertion instrument for a stent with a prosthetic rod that must be inserted into a medullary space
EP20060791866 EP1922035B1 (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a marked chamber
CN 200680032698 CN101257867B (en) 2005-09-09 2006-09-06 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a medullary cavity
BRPI0614856 BRPI0614856A2 (en) 2005-09-09 2006-09-06 endoprosthesis insertion instrument
JP2008530386A JP5099521B2 (en) 2005-09-09 2006-09-06 Insertion device for an internal prosthesis with a prosthetic trunk inserted into the medullary cavity
ZA200802154A ZA200802154B (en) 2005-09-09 2008-03-07 Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a marked chamber
DE202005014270U1 true DE202005014270U1 (en) 2007-01-11
ID=37681424
DE200520014270 Expired - Lifetime DE202005014270U1 (en) 2005-09-09 2005-09-09 Insertion aid for femur implant, comprises guiding unit for striker and particularly safe holding arrangement
US (1) US8157808B2 (en)
EP (1) EP1922035B1 (en)
JP (1) JP5099521B2 (en)
KR (1) KR101317052B1 (en)
CN (1) CN101257867B (en)
AU (1) AU2006289304B2 (en)
BR (1) BRPI0614856A2 (en)
CA (1) CA2621008C (en)
DE (1) DE202005014270U1 (en)
ES (1) ES2458302T3 (en)
RU (1) RU2412675C2 (en)
WO (1) WO2007028588A2 (en)
ZA (1) ZA200802154B (en)
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2005-09-09 DE DE200520014270 patent/DE202005014270U1/en not_active Expired - Lifetime
2006-09-06 WO PCT/EP2006/008679 patent/WO2007028588A2/en active Application Filing
2006-09-06 EP EP20060791866 patent/EP1922035B1/en active Active
2006-09-06 KR KR20087004186A patent/KR101317052B1/en active IP Right Grant
2006-09-06 US US11/997,593 patent/US8157808B2/en active Active
2006-09-06 RU RU2008113186/14A patent/RU2412675C2/en not_active IP Right Cessation
2006-09-06 ES ES06791866T patent/ES2458302T3/en active Active
2006-09-06 BR BRPI0614856 patent/BRPI0614856A2/en not_active Application Discontinuation
2006-09-06 AU AU2006289304A patent/AU2006289304B2/en active Active
2006-09-06 JP JP2008530386A patent/JP5099521B2/en active Active
2006-09-06 CA CA 2621008 patent/CA2621008C/en active Active
2006-09-06 CN CN 200680032698 patent/CN101257867B/en active IP Right Grant
2008-03-07 ZA ZA200802154A patent/ZA200802154B/en unknown
EP2049032A4 (en) * 2006-08-01 2011-08-31 Enztec Ltd Improved impactor
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US20080221576A1 (en) 2008-09-11
EP1922035B1 (en) 2014-01-22
AU2006289304B2 (en) 2011-08-25
JP2009507587A (en) 2009-02-26
RU2412675C2 (en) 2011-02-27
CN101257867A (en) 2008-09-03
CN101257867B (en) 2010-12-15
US8157808B2 (en) 2012-04-17
KR101317052B1 (en) 2013-10-11
AU2006289304A1 (en) 2007-03-15
RU2008113186A (en) 2009-10-20
JP5099521B2 (en) 2012-12-19
BRPI0614856A2 (en) 2011-04-19
WO2007028588A2 (en) 2007-03-15
CA2621008A1 (en) 2007-03-15
ZA200802154B (en) 2009-05-27
WO2007028588A3 (en) 2007-06-28
EP1922035A2 (en) 2008-05-21
KR20080043785A (en) 2008-05-19
CA2621008C (en) 2013-01-08
ES2458302T3 (en) 2014-04-30
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2007-02-15 R207 Utility model specification
2009-02-12 R150 Term of protection extended to 6 years
2012-01-26 R151 Term of protection extended to 8 years
2013-11-21 R152 Term of protection extended to 10 years
2015-09-30 R071 Expiry of right