CN101664342A - Bushing-type oral implanting device - Google Patents

Bushing-type oral implanting device Download PDF

Info

Publication number
CN101664342A
CN101664342A CN 200910139268 CN200910139268A CN101664342A CN 101664342 A CN101664342 A CN 101664342A CN 200910139268 CN200910139268 CN 200910139268 CN 200910139268 A CN200910139268 A CN 200910139268A CN 101664342 A CN101664342 A CN 101664342A
Authority
CN
China
Prior art keywords
implant
implanting
provided
body
telescopic
Prior art date
Application number
CN 200910139268
Other languages
Chinese (zh)
Inventor
一 李
辉 李
李新昌
王元生
Original Assignee
威海威高生物技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CN200810212499 priority Critical
Priority to CN200810212499.7 priority
Application filed by 威海威高生物技术有限公司 filed Critical 威海威高生物技术有限公司
Priority to CN 200910139268 priority patent/CN101664342A/en
Publication of CN101664342A publication Critical patent/CN101664342A/en

Links

Abstract

The invention relates to a defected-tooth implanting or restoring technology, in particular to a bushing-type oral implanting device which is characterized in that at least two grooves with openings on the upper ends are distributed on a cylindrical surface through which an implanting body is connected with a base station; the upper end of the base station is provided with lug bosses which are matched with the grooves; the combination length of the implanting body and a tubular connecting handle of the base station is nearly 1/2 or more of the length of the implanting body so that the implanting body can be embedded in shaped holes on the alveolar bone to shorten the operation time; the implanting body has good bone extruding effect, thus the early-stage stability and the later-stage osseointegration stability after the operation are improved, and the use effect after the healing is enhanced; the contact surface of the thread-type implanting body and the alveolar bone is enlarged, thusthe implanting body and the alveolar bone can be more firmly combined, and the implanting quality of the implanting body is improved; the base station and the implanting body are more tightly connected and are more firmly combined, thus the operation is more convenient; the bushing-type oral implanting device can be operated conveniently and can be well combined with the alveolar bone; the implanting body has good stability and can bear larger lateral force with little or no inclination; the base station and the implanting body can be adjusted in angle and can be connected in high precision;and the bushing-type oral implanting device can inhibit the bone resorption.

Description

套管式口腔种植装置 Oral Implant telescopic means

技术领域: FIELD:

本发明涉及牙齿缺损后的种植或修复技术领域,具体地说是一种套管式口腔种植装置。 The present invention relates to a technical field cultivation or repair after tooth-deficient, in particular oral implantology is a telescopic device.

背景技术- Background technique-

20世纪60年代,瑞典Gothenburg大学的BrSnemark教授进行了关于口腔种植材料和骨--种植体界面的研究,创立了钛金属的"骨结合"理论,为现代口腔种植学的应用奠定了理论基础,口腔种植应用技术是现代口腔种植学中最主要的部分。 1960s, Professor BrSnemark Gothenburg University in Sweden conducted on oral implant material and bone - implant interface research, the creation of "osseointegration" theory titanium, laid the theoretical foundation for the application of modern dental implantology, application of oral Implantology oral Implantology modern technology is the most important part. 口腔种植义齿的广泛开展和应用解决了临床上牙齿缺失带来的一系列美观和功能上的问题。 Implant denture extensive and applied to solve problems on a series of clinical aesthetic and functional tooth loss brings.

然而,种植体在种植过程中,由于缺齿空间狭小,手术操作难度大,由于种植体本身结构和骨质及手术等因素导致种植后的初期稳定性差,进而影响后期骨结合稳定性和修复效果,常遇三个方面的问题, 一是种植体与基台配合精度要求与加工成本、手术操作的方便性之间有矛盾,精度高则加工成本高、手术操作的方便性就变差,精度低则基台与种植体间就有松动或有虚位,对修复和以后的使用都将产生不良影响;二是骨挤压程度难于把握,会出现挤压过度或是无挤压有间隙的情况;三是当基台及上部结构承受较大横向力或横向分力时,基台与种植体结合平面会因弹性变形而出现局部微小缝隙。 However, the implant during the planting process, due to the missing tooth space is small, surgical operation is difficult, due to the implant and the bone structure itself and the difference between the initial surgery and other factors lead to stability after planting, thereby affecting the stability of the late osseointegration and repair effect , often encountered in three aspects, one contradiction between the implant and abutment with precision and processing costs, easy surgical operation, high accuracy is high, the processing costs, easy surgical operation is deteriorated, accuracy lower the base station and there is loose between implants or empty spaces, would have a negative impact on the restoration and future use of all; the second is difficult to grasp the extent of bone extrusion, there will be no squeeze or excessive extrusion gap of situation; Third, when the abutment and superstructure withstand large lateral or transverse force component, the base implant would be a partial elastic deformation in conjunction with the small gap plane.

发明内容: SUMMARY:

本发明的目的是为克服上述现有技术的不足,提供一种抗旋转效果好、与牙槽骨结合效果好、操作方便、稳定性好、配合精度高而零件精度适当、能承受更大横向力的套管式口腔种植装置。 Object of the present invention is to overcome the disadvantages of the prior art, to provide a good anti-rotation effect, in combination with alveolar effective, easy to operate, good stability, high accuracy and precision parts with appropriate, can withstand greater transverse the telescopic force oral implant device. 本发明可以通过如下措施达到- The present invention can be reached by the following measures -

一种套管式口腔种植装置,包括种植体、基台及紧固螺栓,种植体上设有外螺纹,种植体内设有阶梯圆柱面内腔,基台下部设有与种植体相连接的管状连接柄,基台经紧固螺栓与种植体相连接,其特征在于种植体与基台相连接的柱面上均布至少2个上端开口的凹槽,基台连接柄上端部设有与凹槽相配合的凸台。 One kind of telescopic implant dentistry apparatus, comprising an implant, abutment and fastening bolt, is provided with external threads on the implant body is provided with a stepped cylindrical surface planting lumen, provided with a tubular base portion and the audience is connected to the implant a handle connected to the base station by a fastening bolt connected to the implant, wherein the implant and abutment on the cylindrical connecting at least two grooves evenly distributed open upper end, a handle connected to the upper end of the base portion is provided with a recess grooves cooperating bosses.

本发明中种植体内腔可以由三个自上而下直径逐渐减小的阶梯柱面组成, The present invention may be an implant lumen of decreasing diameter from top to bottom by a three step cylinder composition,

上柱面均布至少2个上端开口的凹槽,中间柱面和下柱面都设有螺纹,基台下部设有与种植体相连接的阶梯管状连接柄,阶梯管状连接柄上部设有与凹槽相配合的凸台,凹槽与凸台的配合,基台周向定位更精确、基台的抗旋转能力更强,基台的管状连接柄与种植体的结合长度可长达种植体长度的1/2或更长, 可使种植体与基台连接更可靠、更牢固、更容易将基台插入或从种植体内拆除, 可承受更大的横向力,种植体中间柱面上的螺纹用于与基台管状连接柄的配合, 另外还可安装愈合螺栓、愈合基台及用于种植体的置入或取出,下柱面的螺纹用于紧固螺栓连接基台。 The cylinder uniform at least two grooves open upper end, middle and lower cylinders are provided with a thread cylinder, the base is provided a stepped portion audience tubular connector connected to the implant stem, the stem is provided with a stepped upper portion and the tubular connector with projections, grooves and projections cooperating recess, the circumferential abutment to the positioning more accurate, anti-rotation capability stronger base, connected to the tubular handle and the combined length of the implant up to the base of the implant 1/2 length or longer, the base is connected to the implant can be more reliable, stronger and more easily inserted into the base body or removal from the planting, can withstand greater lateral force on the implant intermediate cylinder thread for mating with the base connected to the tubular shank, additional bolts may be installed healing, healing abutment and the implant for placement or removal, the cylinder fastening screw for bolting the base.

本发明种植体可以具有粗化的表面,外表面上可设有微观不规则凹坑,以增加种植体的表面面积,扩大与牙槽骨的结合面积,使种植体与牙槽骨结合得更牢固,提高了种植体的后期稳定性及种植质量和使用效果。 Implant of the present invention may have a roughened surface, the outer surface may be provided with an irregular microscopic pits, to increase the surface area of ​​the implant, and to expand the bonding area of ​​the alveolar bone, and the alveolar bone so that the implant more binding firm to improve the stability and post-planting quality and the results of the implant.

本发明还可以在种植体的上端部外表面设有微型环形凹槽,以增加种植体这部分的表面面积,扩大与牙槽骨的结合面积,使种植体与牙槽骨结合得更牢固,提高了种植体的稳定性及种植质量和使用效果。 The present invention may also be a surface provided with micro-grooves on the outer annular portion of the upper end of the implant to increase the surface area of ​​this part of the implant, and to expand the bonding area of ​​the alveolar bone, so the implant alveolar bone more firmly bound, improve the stability of the implant and grow quality and the results.

本发明种植体呈柱形颈部直径略大的微锥度体,种植体上的外螺纹呈锯齿状,提高种植体的骨挤压效果和对受力的均匀分散,提高手术初期稳定性,使种植体与牙槽骨结合得牢固、提高种植质量和使用效果。 The present invention generally grown slightly larger diameter cylindrical neck micro taper body, external threads on the implant serrated, increasing bone implants and squeeze effect uniform dispersion of the force, to improve the stability of the initial operation, so that combined with alveolar bone implant was firmly planted to improve the quality and use of effects.

本发明中种植体凹槽数是基台连接柄凸台数的整数倍,以调节基台与种植 The number of grooves in the implant of the present invention is connected to the base station handles an integer multiple of the number of projections, and the base to adjust planting

4体的相对角度,方便手术操作,提高种植质量和使用效果。 The relative angle of the body 4, to facilitate surgical procedures, and the effect of improving the quality of cultivation.

本发明中种植体的下端部可以设有切削槽,是切削槽自下向上渐浅至中部消失,以便使植体自攻植入并提高与牙槽骨结合的紧密性。 The lower end portion of the implant of the present invention may be provided with a cutting groove, the cutting groove is gradually shallow from up to middle disappears, so that the self-tapping implant and explant improve binding to the alveolar bone tightness.

本发明便于将种植体植入牙槽骨上制备的成型孔内,减短手术时间;种植体的骨挤压效果好,提高了手术后的初期稳定性和后期骨结合稳定性及愈后的使用效果;种植体与牙槽骨的接触面积增大,种植体与牙槽骨结合得更牢固, 提高了种植体的稳定性及种植质量和使用效果;基台与种植体的连接更紧密、 更精密、更稳定、结合更牢固,可承受更大的横向力,使手术操作更方便,所以具有操作方便、与牙槽骨结合效果好、种植体能承受更大力、稳定性好、基台与种植体周向角度可调节、基台与种植体连接精度高等优点。 The present invention facilitates the preparation of the implants shaped hole on the alveolar bone, to shorten the operation time; good implant bone pressing effect and improve the stability of the initial post-operative and post-bone binding stability and the prognosis results; alveolar bone implant contact area increases, the more firmly bound alveolar bone implant, the implant improves the stability and quality of cultivation and results; linker station closer to the implant, more sophisticated, more stable, firmer binding, can withstand greater transverse force, the surgical operation easier, it is easy to operate, in conjunction with effective alveolar bone, bear more vigorously growing fitness, good stability, and the base implant can adjust the angle, connected to the base station with high precision implant.

附图说明: BRIEF DESCRIPTION OF:

附图是本发明的结构示意图,也是一种实施例的结构示意图。 The drawings are schematic structural diagram of the present invention, there is also a schematic structural diagram of the embodiment. 图l是本发明的连接示意图。 Figure l is a connection diagram of the present invention. 图2是本发明中的种植体的结构示意图。 FIG 2 is a schematic view of the implant structure in the present invention. 图3是图2的俯视图。 FIG 3 is a plan view of FIG. 2. 图4是图2中A处的局部放大图。 FIG 4 is a partially enlarged view at A 2. 图5本发明中的种植体上端部的结构放大示意图。 The upper end portion of the implant structure in FIG. 5 enlarged view of the present invention. 图6是本发明中基台的结构示意图。 FIG 6 is a schematic view of the present invention, the base station. 图7是本发明中连接紧固螺栓的结构示意图。 FIG 7 is a schematic structural diagram of the present invention, the fastening bolt connection. 具体实施方式: Detailed ways:

下面结合附图对本发明作进一步描述: . DRAWINGS The present invention is further described:

如附图所示, 一种套管式口腔种植装置,包括种植体l、基台2以及紧固螺栓3,种植体1上设有外螺纹4,外螺纹4呈锯齿状,外螺纹4朝向上端(种植体1头部)的齿面(螺纹面)坡度小,朝向下端(种植体1尾部)的齿面(螺纹面)坡度大,齿(螺纹)的顶角的角度在36-40°间,以提高种植体的骨挤压效果和分散受力,提高手术后的初期稳定性,使种植体与牙槽骨结合得牢固、提高种植质量和使用效果,种植体1内腔可以由三个自上而下直径逐渐减小的 As shown in the drawings a telescopic implant dentistry apparatus, comprising a implant L, the base 2 and the fastening bolt 3, the implant 1 is provided with an external thread 4, serrated outer thread 4, toward the external thread 4 the upper end of the tooth surface (implant head 1) of the (thread surface) of small slope, toward the lower end (the tail of the implant 1) tooth surface (flank) large slope, the teeth (threads) in the apex angle of 36-40 ° between, and to enhance the dispersion effect of the bone pressing force of the implant, to improve the stability after the initial surgery, alveolar bone so that the implant is held firmly in combination, to improve the quality and the results cultivation, the implant may be formed of a three lumen a decreasing diameter from top to bottom

阶梯柱面组成,上柱面12均布至少2个上端开口的凹槽5,中间柱面8和下柱面19都设有螺纹,基台2的下部设有与种植体相连接的阶梯管状连接柄10,阶梯管状连接柄10上部设有与凹槽5相配合的凸台6,凹槽5与凸台6的配合, 大大提高了基台定位精度和基台的抗旋转能力,而阶梯管状连接柄10的总长度可长达接近种植体长度的l/2或更长,可使种植体与基台连接更可靠、更牢固、 更容易将基台插入或从种植体内拆除,种植体中间柱面8上的螺纹内孔主要用于与基台管状连接柄10的配合,另外还可安装愈合螺栓、愈合基台及用于种植体的置入或取出,下柱面19的螺纹用于紧固螺栓3连接基台2,另外,种植体凹槽5的数量是基台连接柄凸台6的数量的整数倍,以调节基台与种植体的相对角度,方便手术操作,提高种植质量和使用效果。 A stepped cylinder composed of the cylindrical fabric 12 are at least two upper opening groove 5, the intermediate cylinder 8 and the cylinder 19 are provided with a thread, the lower part of the base 2 is provided with a stepped tubular implant connecting connecting handle 10, the upper portion of the stepped tube connector 10 is provided with a handle 5 and a recess cooperating projection 6, with the recess 5 and the boss 6, which greatly improves the ability of anti-rotation abutment positioning accuracy and the base, and the step the total length of the tubular shank 10 is connected up to the length of the implant closest l / 2 or longer, and can implant abutment connection is more reliable, stronger and more easily inserted into the base body from the cultivation or removal of the implant threaded bore in the intermediate cylinder 8 is used to connect the base station with the tubular shank 10, additional bolts may be installed healing, healing abutment and the implant for placement or removal of, the cylinder 19 is threaded with fastening bolt 3 is connected to the base 2, Further, the number of implants groove 5 is connected to the base station the number of projections 6 of an integer multiple of the shank, to adjust the relative angle between the base and the implant, a surgical procedure to facilitate and improve the cultivation quality and results.

本发明种植体1表面可以设有微观不规则的凹坑, 一般采用种植体表面喷砂酸蚀粗化工艺进行处理,以增加种植体1的表面面积,扩大与牙槽骨结合面积,使种植体与牙槽骨结合得更牢固,提高了种植体与骨的结合稳定性及种植质量和使用效果。 1 of the present invention can be provided with surface micro-implant of irregular pits, the general blasted acid etched implant surface roughening process are treated to increase the surface area of ​​the implant 1, the expansion of the area combined with the alveolar bone, so planting alveolar bone more firmly bound body, to improve the binding stability and planting quality and the results of the implant and the bone.

本发明还可以在种植体1的上端部13设微型环形凹槽18,以增加种植体这部分表面的面积,扩大与牙槽骨结合面积,使种植体与牙槽骨结合得更牢固, 提高了种植体的稳定性及种植质量和使用效果。 The present invention may also be in the upper portion of the implant 13 of the annular groove 18 is provided a micro, to increase the area of ​​the surface of this part of the implant, in combination with the expansion of the area of ​​the alveolar bone, so the implant alveolar bone more firmly bound and improve the stability of the implant and grow quality and the results.

本发明中种植体的下端部可以设有切削槽7,是切削槽自下向上渐浅至中部消失,以便使种植体自攻植入并提高与牙槽骨结合的紧密性。 The lower end portion of the implant of the present invention may be provided with cutting flutes 7, is cutting up the tapered slot from the middle to disappear, so that the self-tapping implant and implant in combination with improved tightness alveolar bone.

本发明便于将种植体植入牙槽骨上制备的成型孔内,减短手术时间;种植体的骨挤压效果好,提高了手术后的初期稳定性和后期骨结合稳定性及愈后的使用效果;种植体与牙槽骨的接触面积增大,种植体与牙槽骨结合得更牢固, 提高了种植体的稳定性及种植质量和使用效果;基台与种植体的连接更紧密、 更精密、更稳定、结合更牢固,可承受更大的横向力而不会倾斜,使手术操作更方便。 The present invention facilitates the preparation of the implants shaped hole on the alveolar bone, to shorten the operation time; good implant bone pressing effect and improve the stability of the initial post-operative and post-bone binding stability and the prognosis results; alveolar bone implant contact area increases, the more firmly bound alveolar bone implant, the implant improves the stability and quality of cultivation and results; linker station closer to the implant, more sophisticated, more stable, firmer binding, can withstand greater forces without lateral tilt, surgical operation more convenient.

Claims (7)

1、一种套管式口腔种植装置,包括种植体、基台及紧固螺栓,种植体上设有外螺纹,种植体内设有阶梯圆柱面内腔,基台下部设有与种植体相连接的管状连接柄,基台经紧固螺栓与种植体相连接,其特征在于种植体与基台相连接的柱面上均布至少2个上端开口的凹槽,基台连接柄上端部设有与凹槽相配合的凸台。 A telescopic implant dentistry apparatus, comprising an implant, abutment and fastening bolt, is provided with external threads on the implant body is provided with a stepped cylindrical surface planting lumen, the audience group is connected to the implant portion is provided with tubular connecting handle, by fastening bolts and the base is connected to the implant, wherein the implant and abutment on the cylindrical connecting at least two grooves evenly distributed open upper end, a handle connected to the upper end portion of the base is provided with cooperating projections and recesses.
2、 根据权利要求l所述的一种套管式口腔种植装置,其特征在于种植体内腔可以由三个自上而下直径逐渐减小的阶梯柱面组成,上柱面均布至少2个上端开口的凹槽,中间柱面和下柱面都设有螺纹,基台下部设有与种植体相连接的阶梯管状连接柄,阶梯管状连接柄上部设有与凹槽相配合的凸台。 2. A telescopic implant dentistry apparatus according to claim l, characterized in that the lumen of the implant may be formed of three decreasing diameter from top to bottom of the cylinder consisting of the step, the at least two cylindrical uniform an upper opening groove, and the intermediate cylinder are provided with a thread cylinder, the base is provided a stepped portion audience tubular connector connected to the implant stem, the upper portion of the stepped tube connector has a handle cooperating projections and recesses.
3、 根据权利要求l所述的一种套管式口腔种植装置,其特征在于种植体表面设有微观不规则的凹坑。 3. An oral implant telescopic apparatus according to claim l, wherein the implant surface is provided with microscopic irregular pits.
4、 根据权利要求l所述的一种套管式口腔种植装置,其特征在于种植体的上端部设有环形凹槽。 4, according to one telescopic implant dentistry apparatus according to claim l, characterized in that the upper end portion of the implant is provided with an annular groove.
5、 根据权利要求l所述的一种套管式口腔种植装置,其特征在于种植体呈柱形颈部直径略大的微锥度体,种植体上的外螺纹呈锯齿状。 5. A telescopic implant dentistry apparatus according to claim l, characterized in that the substantially cylindrical neck diameter slightly larger planting micro taper body, external threads on the implant jagged.
6、 根据权利要求l所述的一种套管式口腔种植装置,其特征在于种植体凹槽数是基台连接柄凸台数的整数倍。 6. A telescopic implant dentistry apparatus according to claim l, wherein the number of grooves are implant abutment connection handle projections integral multiple of the number.
7、 根据权利要求l所述的一种套管式口腔种植装置,其特征在于种植体的下端部设有切削槽,是切削槽自下向上渐浅至中部消失。 7. An oral implant telescopic apparatus according to claim l, characterized in that the lower end portion of the implant is provided with cutting grooves, the tapered upward from the lower to middle cut groove disappears.
CN 200910139268 2008-09-02 2009-04-23 Bushing-type oral implanting device CN101664342A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200810212499 2008-09-02
CN200810212499.7 2008-09-02
CN 200910139268 CN101664342A (en) 2008-09-02 2009-04-23 Bushing-type oral implanting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910139268 CN101664342A (en) 2008-09-02 2009-04-23 Bushing-type oral implanting device

Publications (1)

Publication Number Publication Date
CN101664342A true CN101664342A (en) 2010-03-10

Family

ID=41801230

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200910139268 CN101664342A (en) 2008-09-02 2009-04-23 Bushing-type oral implanting device

Country Status (1)

Country Link
CN (1) CN101664342A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102283714A (en) * 2011-07-26 2011-12-21 常州百康特医疗器械有限公司 The dental implant assembly of formula
CN102319125A (en) * 2011-08-01 2012-01-18 四川大学 Anti-loosing and corrosion-proof dental-implant central screw
CN106943216A (en) * 2011-04-06 2017-07-14 德普伊新特斯产品有限责任公司 Instrument assembly for implanting revision hip prosthesis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106943216A (en) * 2011-04-06 2017-07-14 德普伊新特斯产品有限责任公司 Instrument assembly for implanting revision hip prosthesis
CN102283714A (en) * 2011-07-26 2011-12-21 常州百康特医疗器械有限公司 The dental implant assembly of formula
CN102283714B (en) 2011-07-26 2013-10-09 常州百康特医疗器械有限公司 Assembled dental implant
CN102319125A (en) * 2011-08-01 2012-01-18 四川大学 Anti-loosing and corrosion-proof dental-implant central screw
CN102319125B (en) 2011-08-01 2013-04-10 四川大学 Anti-loosing and corrosion-proof dental-implant central screw

Similar Documents

Publication Publication Date Title
AU2004241822B2 (en) Condensing skeletal implant that facilitate insertion
US4016651A (en) Device for implanting an artificial endosseous element of ceramics and an implant method for use of the device
US6981873B2 (en) Dental implant and head for a compaction drill
EP2328509B1 (en) Compact dental implant
DE602005005452T2 (en) Anchoring element for use in bone
CN100591300C (en) Pipe sleeve anti-rotary dentistry implant
US5795160A (en) Tapered dental implant in a stepped orifice
US7247020B2 (en) Drill set for dental screw implant fixture with self-tap
US9314318B2 (en) Dental anchor apparatus and method
US8277218B2 (en) Screw-type dental implant
JP4212239B2 (en) Dental implant
CN1200653C (en) Implant
EP1849431B1 (en) Narrow dental implant and associated pieces
CN101883537A (en) Dental implant
JP2006512123A (en) Device for the implantation of the fixture
JP2007502648A (en) The dental implant
US10441386B2 (en) Dental implant
CN100571651C (en) Bionics tooth planting body
US20130224687A1 (en) Dental implant
EP1030622B2 (en) Threaded implant for obtaining reliable anchoring in bone
KR20120117893A (en) Dental platform assembly and methods
US20140199658A1 (en) Dental implant with multiple thread patterns
AU1057499A (en) Arrangement and its use for anchoring a threaded implant in bone, for example dentine
KR101536227B1 (en) Medical implant and method of implantation
US20180078297A1 (en) Self-clearing self-cutting implant

Legal Events

Date Code Title Description
C06 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)