CA2074101A1 - Aid for the insertional placement of solid, straight intramedullary and fixation nails - Google Patents
Aid for the insertional placement of solid, straight intramedullary and fixation nailsInfo
- Publication number
- CA2074101A1 CA2074101A1 CA 2074101 CA2074101A CA2074101A1 CA 2074101 A1 CA2074101 A1 CA 2074101A1 CA 2074101 CA2074101 CA 2074101 CA 2074101 A CA2074101 A CA 2074101A CA 2074101 A1 CA2074101 A1 CA 2074101A1
- Authority
- CA
- Canada
- Prior art keywords
- nail
- spear
- drill
- hole
- solid
- 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.)
- Abandoned
Links
- 239000007787 solid Substances 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 210000000988 bone and bone Anatomy 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 8
- 230000000717 retained effect Effects 0.000 claims 3
- 238000002513 implantation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 description 4
- KWGRBVOPPLSCSI-WPRPVWTQSA-N (-)-ephedrine Chemical compound CN[C@@H](C)[C@H](O)C1=CC=CC=C1 KWGRBVOPPLSCSI-WPRPVWTQSA-N 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 229920004937 Dexon® Polymers 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1717—Guides or aligning means for drills, mills, pins or wires for applying intramedullary nails or pins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00004—(bio)absorbable, (bio)resorbable, resorptive
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
F.2060 AID FOR THE INSERTIONAL PLACEMENT OF SOLID, STRAIGHT INTRAMEDULLARY AND FIXATION NAILS
ABSTRACT OF THE DISCLOSURE
The invention relates to an aid for introducing straight, solid intramedullary and fixation nails and it proposes, on the one hand, a tubular or helical guide body which preferably consists of a material which is absorbable by the body and, on the other hand, a special embodiment of a nail, which is provided with a receiving opening for guided coaction with a drill spear.
-?-
ABSTRACT OF THE DISCLOSURE
The invention relates to an aid for introducing straight, solid intramedullary and fixation nails and it proposes, on the one hand, a tubular or helical guide body which preferably consists of a material which is absorbable by the body and, on the other hand, a special embodiment of a nail, which is provided with a receiving opening for guided coaction with a drill spear.
-?-
Description
F.2060 2 ~
AID FOR THE INSERTIONAL PTACEMENT OF SOLID, STRAIGHT INTR~EDULLARY AND FIXATION NAILS
BACKGROUND OF THE INVENTION
The present invention relates to guidance means, as an aid for the insertional positioning of solid, straight intramedullary and fixation nails, in bone-surgery operations.
Intramedullary and fixation nails are known,illustratively from the publication of German patents 2,542,263 and 3,928,460.
Straight, unbent, solid intramedullary and fixation nails are known as Colchero nails. Such nails present difficulties when introduced into medullary space, since it is not possible to guide such nails on an ordinary so-called drill spear.
In the case of conventional hollow (non-solid) nails, the medullary space is drilled open after the introduction of a drill spear, and the drill spear remains in the opened medullary space after removal of the drill, so that the spear can then serve as an aid for the insertion of a hollow nail, which is ordinarily open along one side.
Admittedly, it is possible to insert a solid nail into a medullary space which has been drilled open, using great dexterity and by monitoring the insertion on an x-ray screen; however, in many cases, the required dexterity is absent and, in many other cases, an x-ray monitoring device is not available.
BRIEF STATEMENT OF THE INVENTION
The object of the present invention is to provide an aid for the guided insertion of solid intramedullary and fixation nails whereby, even ln the region of a bone fracture, a nail is guided dependably from one part and into another part of the fractured bone.
2~7~
The invention achieves this object by providing a thin-walled, guide body which may be developed as a tube or which may conslst of a cylindrical helix, there being in either case a guide opening -to receive a drill spear.
Stated differently, i-t is proposed that, having used a drill spear in drilling open an intramedullary space, the drlll spear is allowed to remain in the drllled medullary space~ whereupon a thin-walled tubular or helical body is introduced along the drill spear into the inside of the medullary space and over the entire opened length of the drilled medullary space; and this tubular or helical guide body is of a material which can be absorbed by the body, for example the material known today under the brand name 'IVicryl'' or "Dexon". After the guide body has been introduced into the cavity in the medullary space, the drill spear is removed, and the solid Colchero nail which is then to be introduced is guided along the guide body up to the distal end of the drilled medullary cavity.
Advantageously, the wall of the guide body itself may include a reinforcement similar to a corset bone, thereby enhancing the positional stability and security of the guide body. Alternatively, the wall structure of the guide body may inherently possess sufficient strength for stable and secure guidance of an inserted nail.
The guide body may be inserted either with the aid of the corset-bone reinforcement or with the aid of a mandrin. After introduction of the guide body, the drill spear and the mandrin can be removed. In the case of a corset-bone reinforcement, the material of the reinforcement may be of the same body-absorbable material as the guide body; alternatively the corset-bone reinforcement may be of a different material which is removed before insertion of the nail.
Thus, a helical or catheter-like structural part is provided -~hich performs its task of guiding the insertion of a Colchero nail and which then remains in the wound, for absorption by the body.
2~7~
Another embodiment of the invention is character-ized by an outwardly open guide opening, arranged preferably in the outer circumference of the nail, and sized for guided coaction with a drill spear. In this embodiment, it is proposed that, after a drill spear has been lnserted and the medullary space has been drilled out, the drill spear remain in the cavity of the medullary space, and that the nail then be introduced into the cavity of the medullary space and that it be guided on the drill spear. In this case, nail guidance on the inserted drill spear is along the opening provided in the outer circumference of the nail. The nail and the drill spear remain together in the wound, until the nail is later extracted with the drill spear.
DETAILED DESCRIPTION
Illustrative embodiments of the invention are shown in the accompanying drawings, in which:
Fig. 1 is a perspective view of a part of the guide body of a ~irst embodiment of the invention;
Fig. 2 is a section taken at 2~2 of Fig. l;
Fig. 3 is a section through a new solid nail having a guide formation for guided coaction wi-th a drill spear;
and Fig. 4 is a perspective view of another embodiment, involving a helical guide body.
The drawings show a portion of a guide body 1 which is closed at its lower end, and this closed end has a central guide opening 2. Locally along the inner surface of the wall of the guide body 1, elongate reinforcement 3 is shown. The reinforcement 3 ls preferably removable, and reinforcement 3 may be one of an angularly spaced plurality.
In the embodiment of Fig. 3, an otherwise solid round nail 4 is provided at a local region of its periphery with an elongate receiving opening or groove 5, which is sized for guided coaction with a drill spear 6. In use of this configuration, an open hole is first drilled into the medullary region of the bone, to depth and diameter for ultimate accommodation of the nail 4. A drill spear 6 is then driven into the open hole in parallel and substantially 207~10~
tangent relation to the wall of the drilled open hole, but to greater depth; and the drill spear is left in place for piloting guidance of the groove 5 in the course of nail 4 insertion into the cavity of the medullar space established by the drilled open hole.
The drill spear and the nail 4 remain in the wound until the nail 4 is withdrawn together with the drill spear 6. For this reason, it is important that the opening 5 shall be externally open, as shown, so as to avoid development of any inflammation of the wound.
The external opening is afforded by a substantial clearance relation of the drill spear 6 within the opening 5 of the groove.
The arrangement of Fig. 4 is a modification of Figs. 1 and 2, in that the spiral of the helical body shown will be understood to be body-absorbable and to provide a lining of the drilled open hole of medullar space, i~ being indicated that an interference relation should exist between that inserted nail and the inner-diameter geometric cylinder defined by and within thehelix. Also, it will be noted in Fig. 4, that the distal end of the helix terminates with a centered loop to define the equivalent of the aperture 2 in Figs. 1 and 2.
AID FOR THE INSERTIONAL PTACEMENT OF SOLID, STRAIGHT INTR~EDULLARY AND FIXATION NAILS
BACKGROUND OF THE INVENTION
The present invention relates to guidance means, as an aid for the insertional positioning of solid, straight intramedullary and fixation nails, in bone-surgery operations.
Intramedullary and fixation nails are known,illustratively from the publication of German patents 2,542,263 and 3,928,460.
Straight, unbent, solid intramedullary and fixation nails are known as Colchero nails. Such nails present difficulties when introduced into medullary space, since it is not possible to guide such nails on an ordinary so-called drill spear.
In the case of conventional hollow (non-solid) nails, the medullary space is drilled open after the introduction of a drill spear, and the drill spear remains in the opened medullary space after removal of the drill, so that the spear can then serve as an aid for the insertion of a hollow nail, which is ordinarily open along one side.
Admittedly, it is possible to insert a solid nail into a medullary space which has been drilled open, using great dexterity and by monitoring the insertion on an x-ray screen; however, in many cases, the required dexterity is absent and, in many other cases, an x-ray monitoring device is not available.
BRIEF STATEMENT OF THE INVENTION
The object of the present invention is to provide an aid for the guided insertion of solid intramedullary and fixation nails whereby, even ln the region of a bone fracture, a nail is guided dependably from one part and into another part of the fractured bone.
2~7~
The invention achieves this object by providing a thin-walled, guide body which may be developed as a tube or which may conslst of a cylindrical helix, there being in either case a guide opening -to receive a drill spear.
Stated differently, i-t is proposed that, having used a drill spear in drilling open an intramedullary space, the drlll spear is allowed to remain in the drllled medullary space~ whereupon a thin-walled tubular or helical body is introduced along the drill spear into the inside of the medullary space and over the entire opened length of the drilled medullary space; and this tubular or helical guide body is of a material which can be absorbed by the body, for example the material known today under the brand name 'IVicryl'' or "Dexon". After the guide body has been introduced into the cavity in the medullary space, the drill spear is removed, and the solid Colchero nail which is then to be introduced is guided along the guide body up to the distal end of the drilled medullary cavity.
Advantageously, the wall of the guide body itself may include a reinforcement similar to a corset bone, thereby enhancing the positional stability and security of the guide body. Alternatively, the wall structure of the guide body may inherently possess sufficient strength for stable and secure guidance of an inserted nail.
The guide body may be inserted either with the aid of the corset-bone reinforcement or with the aid of a mandrin. After introduction of the guide body, the drill spear and the mandrin can be removed. In the case of a corset-bone reinforcement, the material of the reinforcement may be of the same body-absorbable material as the guide body; alternatively the corset-bone reinforcement may be of a different material which is removed before insertion of the nail.
Thus, a helical or catheter-like structural part is provided -~hich performs its task of guiding the insertion of a Colchero nail and which then remains in the wound, for absorption by the body.
2~7~
Another embodiment of the invention is character-ized by an outwardly open guide opening, arranged preferably in the outer circumference of the nail, and sized for guided coaction with a drill spear. In this embodiment, it is proposed that, after a drill spear has been lnserted and the medullary space has been drilled out, the drill spear remain in the cavity of the medullary space, and that the nail then be introduced into the cavity of the medullary space and that it be guided on the drill spear. In this case, nail guidance on the inserted drill spear is along the opening provided in the outer circumference of the nail. The nail and the drill spear remain together in the wound, until the nail is later extracted with the drill spear.
DETAILED DESCRIPTION
Illustrative embodiments of the invention are shown in the accompanying drawings, in which:
Fig. 1 is a perspective view of a part of the guide body of a ~irst embodiment of the invention;
Fig. 2 is a section taken at 2~2 of Fig. l;
Fig. 3 is a section through a new solid nail having a guide formation for guided coaction wi-th a drill spear;
and Fig. 4 is a perspective view of another embodiment, involving a helical guide body.
The drawings show a portion of a guide body 1 which is closed at its lower end, and this closed end has a central guide opening 2. Locally along the inner surface of the wall of the guide body 1, elongate reinforcement 3 is shown. The reinforcement 3 ls preferably removable, and reinforcement 3 may be one of an angularly spaced plurality.
In the embodiment of Fig. 3, an otherwise solid round nail 4 is provided at a local region of its periphery with an elongate receiving opening or groove 5, which is sized for guided coaction with a drill spear 6. In use of this configuration, an open hole is first drilled into the medullary region of the bone, to depth and diameter for ultimate accommodation of the nail 4. A drill spear 6 is then driven into the open hole in parallel and substantially 207~10~
tangent relation to the wall of the drilled open hole, but to greater depth; and the drill spear is left in place for piloting guidance of the groove 5 in the course of nail 4 insertion into the cavity of the medullar space established by the drilled open hole.
The drill spear and the nail 4 remain in the wound until the nail 4 is withdrawn together with the drill spear 6. For this reason, it is important that the opening 5 shall be externally open, as shown, so as to avoid development of any inflammation of the wound.
The external opening is afforded by a substantial clearance relation of the drill spear 6 within the opening 5 of the groove.
The arrangement of Fig. 4 is a modification of Figs. 1 and 2, in that the spiral of the helical body shown will be understood to be body-absorbable and to provide a lining of the drilled open hole of medullar space, i~ being indicated that an interference relation should exist between that inserted nail and the inner-diameter geometric cylinder defined by and within thehelix. Also, it will be noted in Fig. 4, that the distal end of the helix terminates with a centered loop to define the equivalent of the aperture 2 in Figs. 1 and 2.
Claims (13)
1. An aid device for the guided insertion introducing of solid, straight, intramedullary and fixation nails, characterized by a thin-walled guide body (1) of tubular development or consisting of a cylindrical helix, said body having a guide opening (2) to receive a drill spear.
2. The device of claim 1, wherein the guide body (1) is of a material which is absorbable by the human body.
3. The device of claim 1, wherein the length of the guide body (1) corresponds to at least the length of the intramedullary and fixation nail to be used.
4. The device of claim 1, in which the guide body (1) has an elongate corset-bone-like reinforce-ment (3) in its wall.
5. The device of claim 1, wherein the guide body (1) has sufficient structural integrity in its wall alone, to withstand insertional implantation in a drilled intramedullary hole.
6. As an article of manufacture, a solid, straight intramedullary and fixation nail, character-ized by an elongate receiving opening (5) in the nail (4), said opening being sized for guided coaction with an implanted drill spear (6).
7. The article of claim 6, wherein the receiving opening (5) is an outwardly open groove in the outer circumference of the nail (4).
8. The method of using a tubular sheath in aid of implanting a solid fixation nail in the medullary region of a bone, comprising the steps of:
(a) drilling an open hole of predetermined depth into said region;
(b) inserting the tubular sheath into the hole to provide a sheathed lining of the drilled hole; and (c) inserting the nail into frictionally retained engagement with the inner wall of the tubular sheath.
(a) drilling an open hole of predetermined depth into said region;
(b) inserting the tubular sheath into the hole to provide a sheathed lining of the drilled hole; and (c) inserting the nail into frictionally retained engagement with the inner wall of the tubular sheath.
9. The method of claim 8, wherein the tubular sheath is of selected body-absorbable material.
10. The method of claim 8, wherein the nail is selected for interference fit with the inner wall of the sheath.
11. The method of using an elongate helix of body-absorbable material in aid of implanting a solid fixation nail in the medullary region of a bone, comprising the steps of:
(a) drilling an open hole of predetermined depth into said region;
(b) inserting the helix into the hole to provide a helically distributed lining of the drilled hole; and (c) inserting the nail into frictionally retained engagement with and within said helix.
(a) drilling an open hole of predetermined depth into said region;
(b) inserting the helix into the hole to provide a helically distributed lining of the drilled hole; and (c) inserting the nail into frictionally retained engagement with and within said helix.
12. The method of using a tubular sheath in aid of implanting a solid fixation nail in the medullary region of a bone, wherein the sheath has a closed distal end wall with a central pilot aperture, said method comprising the steps of:
(a) drilling an open hole of predetermined depth into said region, said drilling being by:
(i) selecting a drill spear sized to fit said aperture and driving the same to more than said pre-determined depth; and (ii) using the drill spear as a central pilot for enlarging said hole to substantially sheath diameter and to said predetermined depth;
(b) using the drill spear as a pilot with sheath engagement via said aperture in the course of inserting the sheath to establish a sheathed lining of the drilled hole, and to said predetermined depth;
(c) extracting the drill spear; and (d) inserting the nail into frictionally retained engagement with the inner wall of the tubular sheath.
(a) drilling an open hole of predetermined depth into said region, said drilling being by:
(i) selecting a drill spear sized to fit said aperture and driving the same to more than said pre-determined depth; and (ii) using the drill spear as a central pilot for enlarging said hole to substantially sheath diameter and to said predetermined depth;
(b) using the drill spear as a pilot with sheath engagement via said aperture in the course of inserting the sheath to establish a sheathed lining of the drilled hole, and to said predetermined depth;
(c) extracting the drill spear; and (d) inserting the nail into frictionally retained engagement with the inner wall of the tubular sheath.
13. The method of implanting a solid fixation nail in the medullary region of a bone, wherein the nail has an elongate pilot groove at one location on its circum-ference, said method comprising the steps of:
(a) drilling an open hole of predetermined depth into said region and of diameter to receive said nail;
(b) selecting a drill spear sized for guided engagement with the nail groove;
(c) using the drill spear to drive the same on an alignment parallel to the drilled open hole and substan-tially tangent to a local part of the drilled open hole;
and (d) using the nail groove in engaged relation to the drill spear for piloted insertion of the nail into the drilled open hole.
(a) drilling an open hole of predetermined depth into said region and of diameter to receive said nail;
(b) selecting a drill spear sized for guided engagement with the nail groove;
(c) using the drill spear to drive the same on an alignment parallel to the drilled open hole and substan-tially tangent to a local part of the drilled open hole;
and (d) using the nail groove in engaged relation to the drill spear for piloted insertion of the nail into the drilled open hole.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914124007 DE4124007C1 (en) | 1991-07-19 | 1991-07-19 | |
DEP4124007.3 | 1991-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2074101A1 true CA2074101A1 (en) | 1993-01-20 |
Family
ID=6436573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2074101 Abandoned CA2074101A1 (en) | 1991-07-19 | 1992-07-17 | Aid for the insertional placement of solid, straight intramedullary and fixation nails |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0528145A1 (en) |
JP (1) | JPH05184596A (en) |
CA (1) | CA2074101A1 (en) |
DE (2) | DE4143362C2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4341677C1 (en) * | 1993-12-07 | 1995-07-13 | Endocare Ag | Locking nail |
ATE255855T1 (en) * | 1998-11-17 | 2003-12-15 | Synthes Ag | METHOD NAIL FOR THE OPERATIVE TREATMENT OF FOREARM FRACTURES |
DE29823113U1 (en) * | 1998-12-28 | 2000-05-11 | Howmedica Gmbh | Femoral neck screw |
AUPQ246799A0 (en) | 1999-08-26 | 1999-09-16 | Australian Surgical Design And Manufacture Pty Limited | Surgical screw and guidewire |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1766905A1 (en) * | 1968-08-08 | 1971-09-16 | Ortopedia Gmbh | Intramedullary nail for the treatment of fracture bridges and insertion device for use with such an intramedullary nail |
DE2542263A1 (en) * | 1975-09-23 | 1977-03-24 | Christian Lassen | Osteo synthetic pin for bone fractures - has slotted ends which are expanded by screwed spindle |
GB8501907D0 (en) * | 1985-01-25 | 1985-02-27 | Thackray C F Ltd | Surgical instruments |
IT1214567B (en) * | 1986-12-02 | 1990-01-18 | Cremascoli G S P A | ENDOMIDOLLAR NAIL STRUCTURE, AND EQUIPMENT FOR ITS INSERTION INTO THE BONE. |
DE3835682A1 (en) * | 1988-10-20 | 1990-04-26 | Labitzke Reiner Prof Dr Med Ha | Device for stabilizing fractures of tubular bones and of joints |
DE3841288A1 (en) * | 1988-12-08 | 1990-06-13 | Pertti Prof Dr Toermaelae | OSTEOSYNTHESE IMPLANTS |
DD278491A1 (en) * | 1988-12-27 | 1990-05-09 | Medizin Labortechnik Veb K | MARK SPACE LOCK BRAND |
-
1991
- 1991-07-19 DE DE4143362A patent/DE4143362C2/en not_active Expired - Fee Related
- 1991-07-19 DE DE19914124007 patent/DE4124007C1/de not_active Expired - Lifetime
-
1992
- 1992-06-26 EP EP92110889A patent/EP0528145A1/en not_active Withdrawn
- 1992-07-15 JP JP4188259A patent/JPH05184596A/en active Pending
- 1992-07-17 CA CA 2074101 patent/CA2074101A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE4143362A1 (en) | 1993-01-21 |
EP0528145A1 (en) | 1993-02-24 |
DE4124007C1 (en) | 1992-11-05 |
JPH05184596A (en) | 1993-07-27 |
DE4143362C2 (en) | 1994-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Dead |