CN106691570B - Screw nail - Google Patents
Screw nail Download PDFInfo
- Publication number
- CN106691570B CN106691570B CN201710053995.1A CN201710053995A CN106691570B CN 106691570 B CN106691570 B CN 106691570B CN 201710053995 A CN201710053995 A CN 201710053995A CN 106691570 B CN106691570 B CN 106691570B
- Authority
- CN
- China
- Prior art keywords
- screw body
- screw
- fixed
- stabilizing mechanism
- ejector rod
- 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.)
- Active
Links
Images
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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/8635—Tips of screws
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
-
- 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
- A61F2/30721—Accessories
- A61F2/30749—Fixation appliances for connecting prostheses to the body
-
- 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
- A61B2017/564—Methods for bone or joint treatment
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
Abstract
The invention discloses a screw, comprising: a screw body and a stabilizing mechanism; the stabilizing mechanism is arranged in the screw body, and when the screw body enters the object to be fixed, at least part of the stabilizing mechanism is embedded into the object to be fixed so as to lock the screw body on the object to be fixed. Therefore, when the artificial joint replacement operation is carried out, after the screw body enters the prosthesis and the bone, at least part of the stabilizing mechanism is embedded into the bone for the conditions of serious osteoporosis, serious bone defect, early severe motion of a patient and the like, so that the fixing firmness can be effectively enhanced, and the problem that the medical screw in the prior art cannot firmly fix the artificial joint replacement under the conditions of serious osteoporosis, serious bone defect, early severe motion of the patient and the like is solved.
Description
Technical Field
The invention relates to the field of medical devices, in particular to a screw.
Background
In modern orthopedics, screws have become almost a necessary implant for every operation. In artificial joint replacement, the screw functions to fix the prosthesis and the bone, ensure the initial stability of the prosthesis, and particularly reduce the relative displacement between the bone and the prosthesis, so that the prosthesis has better bone ingrowth and is beneficial to the medium-and long-term stability of the prosthesis.
The existing medical screw can realize good fixation of the prosthesis under general conditions, but for the conditions of severe osteoporosis, severe bone defect, early severe motion of a patient and the like, the existing medical screw cannot be firmly fixed, so that the prosthesis cannot have good bone growth, and the service life of the prosthesis is influenced.
Disclosure of Invention
The embodiment of the invention provides a screw, which at least solves the problem that a medical screw in the prior art cannot firmly fix artificial joint replacement under the conditions of severe osteoporosis, severe bone defect, early severe motion of a patient and the like.
According to an aspect of an embodiment of the present invention, there is provided a screw including: a screw body; and when the screw body enters the object to be fixed, at least part of the stabilizing mechanism is embedded into the object to be fixed so as to lock the screw body on the object to be fixed.
Further, the stabilizing mechanism includes: a plurality of locking pins, each pin having a first position projecting from the interior of the screw body to the exterior of the screw body and a second position retracted from the exterior of the screw body to the interior of the screw body; when the locking nail is located at the first position, the extending part of the locking nail is embedded into the object to be fixed so as to lock the screw body.
Further, the stabilizing mechanism further comprises: and the ejector rod is movably arranged in the screw body and used for ejecting each locking nail from the second position to the first position.
Further, each locking pin is movably arranged along the radial direction of the screw body; wherein, offer the cylindricality chamber that matches with the ejector pin along the axial of screw body, the ejector pin is movably set up in the cylindricality intracavity in order to be ejected each lock pin to the first position by the second position.
Furthermore, a plurality of through holes communicated with the cylindrical cavity are formed in the side wall of the screw body, and a positioning plate is arranged in each through hole; wherein, seted up flexible hole on the locating plate, the fitting pin telescopically sets up in flexible downthehole in order to remove between primary importance and second place.
Furthermore, the side wall of the positioning plate is provided with an external thread, and the inner wall of the through hole is provided with an internal thread matched with the external thread, so that the positioning plate is in threaded connection with the through hole.
Further, the stabilizing mechanism further comprises: each spring is sleeved on a corresponding locking nail; the tail end of the locking nail is provided with a nail cap which is positioned on the inner side of the positioning plate, the first end of the spring is abutted to the nail cap, and the second end of the spring is abutted to the positioning plate, so that the locking nail is retracted to the second position from the first position.
Furthermore, an annular step structure is arranged around the edge of the telescopic hole of the positioning plate, and the second end of the spring is abutted to the inside of the annular step structure.
Further, the outer end face of the nail cap is an arc face matched with the side wall of the ejector rod, and when the ejector rod penetrates into the cylindrical cavity, the side wall of the ejector rod is abutted to the arc face on the nail cap so as to eject the locking nail from the second position to the first position.
Further, the head of the ejector rod is a conical tip.
Furthermore, the ejector rod is provided with an insertion end for being inserted into the cylindrical cavity and a fixed end opposite to the insertion end, the fixed end of the ejector rod is provided with a fixed thread, and a threaded hole section matched with the fixed thread is arranged at the opening of the cylindrical cavity so that the fixed end of the ejector rod is in threaded connection with the opening of the cylindrical cavity.
The screw applying the technical scheme of the invention comprises: a screw body and a stabilizing mechanism; the stabilizing mechanism is arranged in the screw body, and when the screw body enters the object to be fixed, at least part of the stabilizing mechanism is embedded into the object to be fixed so as to lock the screw body on the object to be fixed. Therefore, when the artificial joint replacement operation is carried out, after the screw body enters the prosthesis and the bone, at least part of the stabilizing mechanism is embedded into the bone for the conditions of serious osteoporosis, serious bone defect, early severe motion of a patient and the like, so that the fixing firmness can be effectively enhanced, and the problem that the medical screw in the prior art cannot firmly fix the artificial joint replacement under the conditions of serious osteoporosis, serious bone defect, early severe motion of the patient and the like is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic illustration of an alternative screw according to an embodiment of the present invention in cross-section of the interior thereof;
FIG. 2 is a schematic structural view of an alternative screw body according to an embodiment of the present invention;
FIG. 3 is a schematic view of a split structure of a screw body and a top rod of an alternative screw according to an embodiment of the present invention;
FIG. 4 is a schematic view of an alternative embodiment of a screw retaining plate according to the present invention;
FIG. 5 is a schematic structural view of an alternative screw body stabilizing mechanism according to an embodiment of the present invention
Fig. 6 is a schematic structural view of an alternative screw locking pin according to an embodiment of the present invention; and
fig. 7 is a schematic structural diagram of a push rod of an alternative screw according to an embodiment of the invention.
10. A screw body; 11. a through hole; 20. a stabilizing mechanism; 21. locking nails; 211. a nail cap; 22. a top rod; 23. a spring; 30. positioning a plate; 31. a telescopic hole; 32. and an annular step structure.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A screw according to an embodiment of the present invention, as shown in fig. 1, includes: a screw body 10 and a stabilizing mechanism 20; the stabilizing mechanism 20 is disposed on the screw body 10 such that when the screw body 10 is advanced into the object to be secured, at least a portion of the stabilizing mechanism 20 is embedded within the object to be secured to lock the screw body 10 to the object to be secured.
The screw applying the technical scheme of the invention comprises: a screw body 10 and a stabilizing mechanism 20; the stabilizing mechanism 20 is disposed within the screw body 10 such that when the screw body 10 is advanced into an object to be secured, at least a portion of the stabilizing mechanism 20 is embedded within the object to be secured to lock the screw body 10 to the object to be secured. Therefore, when the artificial joint replacement operation is carried out, for the conditions of severe osteoporosis, severe bone defect, severe early-stage movement of a patient and the like, after the screw body 10 enters the prosthesis and the bone, at least part of the stabilizing mechanism 20 is embedded into the bone, so that the fixing firmness can be effectively enhanced, and the problem that the medical screw in the prior art cannot be firmly fixed for the artificial joint replacement under the conditions of severe osteoporosis, severe bone defect, severe early-stage movement of the patient and the like is solved.
In particular implementation, the stabilizing mechanism 20 includes: a plurality of locking pins 21 and a carrier rod 22, each locking pin 21 having a first position projecting from the interior of the screw body 10 to the exterior of the screw body 10 and a second position retracted from the exterior of the screw body 10 to the interior of the screw body 10; the top rod 22 is movably arranged in the screw body 10, and when the top rod 22 moves in the screw body 10, each locking nail 21 is ejected from the second position to the first position, namely, the locking nails 21 are ejected from the screw body 10 so that the protruding parts of the locking nails are embedded into a prosthesis and a joint to lock the screw body 10, thereby enhancing the fastening effect of the screw body 10.
Specifically, in order to ensure the stability of each locking pin 21, further, each locking pin 21 is movably disposed in the radial direction of the screw body 10;
as shown in fig. 2 and 3, a cylindrical cavity matched with the ejector rod 22 is formed along the axial direction of the screw body 10, and the ejector rod 22 is movably arranged in the cylindrical cavity to eject each locking pin 21 from the second position to the first position along the radial direction of the screw body 10; a plurality of through holes 11 communicated with the cylindrical cavity are formed in the side wall of the screw body 10, and a positioning plate 30 is arranged in each through hole 11; as shown in fig. 4, a telescopic hole 31 is opened on the positioning plate 30, the telescopic hole 31 extends along the radial direction of the screw body 10, and the locking pin 21 is telescopically arranged in the telescopic hole 31 to move between a first position and a second position along the radial direction of the screw body 10 so as to realize ejection of the locking pin 21.
In order to facilitate the installation of the locking pin 21, as shown in fig. 1, fig. 3 and fig. 4, each positioning plate 30 is detachably installed in a corresponding through hole 11, specifically, an external thread is provided on a side wall of the positioning plate 30, an internal thread matched with the external thread is provided on an inner wall of the through hole 11, the positioning plate 30 is screwed with the through hole 11 through the thread, so that when the locking pin 21 is installed, the locking pin 21 is inserted into the telescopic hole 31 of the positioning plate 30, and then the locking pin 21 and the positioning plate 30 are integrally installed in the through hole 11.
Before the screw body 10 has been driven into the prosthesis and the joint, it is necessary to ensure that each locking pin 21 is retracted within the screw body 10, and therefore, further, as shown in fig. 1 and 5, the stabilizing mechanism 20 further comprises: a plurality of springs 23, wherein each spring 23 is sleeved on a corresponding locking nail 21; wherein, the tail end of lock pin 21 has the nail cap 211, the nail cap 211 is located the inboard of locating plate 30, the first end and the nail cap 211 butt of spring 23, the second end and the locating plate 30 butt of spring 23 to after installing lock pin 21 and locating plate 30 wholly in through-hole 11, before ejector pin 22 has not inserted the cylindricality intracavity of the screw body 10, under the effect of spring 23 elasticity, lock pin 21 retracts in through-hole 11 of the screw body 10, thereby make the screw body 10 can normally nail into prosthesis and joint.
In order to keep the stability of the spring 23 and prevent the spring 23 from shaking, as shown in fig. 4, an annular step structure 32 is opened around the edge of the telescopic hole 31 of the positioning plate 30, and the second end of the spring 23 abuts against the inside of the annular step structure 32, so as to prevent the second end of the spring 23 from sliding on the positioning plate 30.
In order to be able to adapt to the locking pin 21 when the ejector rod 22 is inserted into the cylindrical cavity of the screw body 10, further, as shown in fig. 6, the outer end surface of the nut 211 of each locking pin 21 is an arc surface adapted to the side wall of the ejector rod 22, and when the ejector rod 22 penetrates into the cylindrical cavity, the side wall of the ejector rod 22 abuts against the arc surface on the nut 211 so as to eject the locking pin 21 out of the screw body 10.
In order to eject the locking pins 21 one by one from the inside of the screw body 10 when the carrier rod 22 is inserted into the cylindrical cavity of the screw body 10, further, as shown in fig. 7, the head of the carrier rod 22 is a tapered tip, and the tapered tip can eject the locking pins 21 gradually outward when contacting the nut 211 of the locking pin 21.
In order to keep the stability of each locking pin 21 after the ejector rod 22 completely ejects all the locking pins 21, further, as shown in fig. 7, the ejector rod 22 has an insertion end for inserting into the cylindrical cavity and a fixed end opposite to the insertion end, the insertion end of the ejector rod 22 is a tapered tip, the fixed end of the ejector rod 22 has a fixed thread, a threaded hole section matched with the fixed thread is arranged at the opening of the cylindrical cavity, and after the ejector rod 22 completely enters the cylindrical cavity to completely eject all the locking pins 21, the fixed end of the ejector rod 22 is in threaded connection with the opening of the cylindrical cavity through the thread, so that the ejector rod 22 can be prevented from sliding in the cylindrical cavity, and the stability of each locking pin 21 is ensured.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A screw, comprising:
a screw body (10);
a stabilizing mechanism (20), wherein the stabilizing mechanism (20) is arranged on the screw body (10), and when the screw body (10) enters the object to be fixed, at least part of the stabilizing mechanism (20) is embedded into the object to be fixed so as to lock the screw body (10) on the object to be fixed;
the stabilizing mechanism (20) comprises a plurality of locking pins (21), each locking pin (21) having a first position protruding from the interior of the screw body (10) to the exterior of the screw body (10) and a second position retracted from the exterior of the screw body (10) to the interior of the screw body (10); when the locking nail (21) is in the first position, the protruding part of the locking nail (21) is embedded into the object to be fixed so as to lock the screw body (10);
the stabilizing mechanism (20) further comprises an ejector rod (22) movably arranged in the screw body (10) and used for ejecting each locking nail (21) from the second position to the first position;
a cylindrical cavity matched with the ejector rod (22) is formed along the axial direction of the screw body (10);
a plurality of through holes (11) communicated with the cylindrical cavity are formed in the side wall of the screw body (10), and a positioning plate (30) is arranged in each through hole (11); the positioning plate (30) is provided with a telescopic hole (31), and the locking nail (21) is arranged in the telescopic hole (31) in a telescopic manner so as to move between the first position and the second position;
the tail end of the locking nail (21) is provided with a nail cap (211), and the nail cap (211) is positioned on the inner side of the positioning plate (30).
2. A screw according to claim 1, wherein each locking pin (21) is movably arranged in a radial direction of the screw body (10);
wherein the ejector rod (22) is movably arranged in the cylindrical cavity to eject each locking pin (21) from the second position to the first position.
3. The screw according to claim 2, wherein the side wall of the positioning plate (30) is provided with an external thread, and the inner wall of the through hole (11) is provided with an internal thread matching the external thread, so that the positioning plate (30) is screwed with the through hole (11).
4. Screw according to claim 2, characterized in that the head of the ejector pin (22) is a conical tip.
5. The screw according to claim 2, characterized in that the ejector rod (22) has an insertion end for inserting into the cylindrical cavity and a fixed end opposite to the insertion end, the fixed end of the ejector rod (22) has a fixed thread, and the opening of the cylindrical cavity is provided with a threaded hole section matched with the fixed thread, so that the fixed end of the ejector rod (22) is in threaded connection with the opening of the cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053995.1A CN106691570B (en) | 2017-01-22 | 2017-01-22 | Screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710053995.1A CN106691570B (en) | 2017-01-22 | 2017-01-22 | Screw nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106691570A CN106691570A (en) | 2017-05-24 |
| CN106691570B true CN106691570B (en) | 2020-11-06 |
Family
ID=58909510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710053995.1A Active CN106691570B (en) | 2017-01-22 | 2017-01-22 | Screw nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106691570B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115444531B (en) * | 2022-08-10 | 2023-05-26 | 郭建利 | Proximal posterolateral anatomical locking device for tibia |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327054C1 (en) * | 1993-08-12 | 1995-04-13 | Schaefer Micomed Gmbh | Ventral intervertebral implant |
| WO1997048352A1 (en) * | 1996-06-18 | 1997-12-24 | Mehran Kasra | Bone prosthesis fixation device and methods of using same |
| US5702391A (en) * | 1995-05-16 | 1997-12-30 | Lin; Chih-I | Intervertebral fusion device |
| CN102322467A (en) * | 2011-09-07 | 2012-01-18 | 梁幸平 | A kind of locking nail |
| CN202960735U (en) * | 2012-11-23 | 2013-06-05 | 尹国瑞 | Self-locking bone nail |
| CN104287819A (en) * | 2014-10-09 | 2015-01-21 | 中国人民解放军第四军医大学 | Medical pedicle screw component with telescopic double thread and capable of resisting pullout |
| CN204169918U (en) * | 2014-10-09 | 2015-02-25 | 中国人民解放军第四军医大学 | The pedicle screw assemblies that the two screw thread of a kind of Medical flexible, resistance to plucking go out |
| CN204744381U (en) * | 2015-06-26 | 2015-11-11 | 重庆医科大学附属永川医院 | Locking pedicle of vertebral arch screw that takes off |
| CN205423448U (en) * | 2016-03-15 | 2016-08-03 | 天津市华泰金峰科技有限公司 | High stability metal peg |
| CN205667574U (en) * | 2016-04-16 | 2016-11-02 | 中南大学湘雅三医院 | The nail that can quickly remove |
| CN207125783U (en) * | 2017-01-22 | 2018-03-23 | 北京爱康宜诚医疗器材有限公司 | Screw |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1570813A1 (en) * | 2004-03-05 | 2005-09-07 | Cervitech, Inc. | Cervical intervertebral disc prosthesis with anti-luxation means, and instrument |
| US8435238B2 (en) * | 2004-10-05 | 2013-05-07 | Michigan State University | Devices and methods for interlocking surgical screws and nails |
| CN103654936B (en) * | 2012-09-17 | 2016-05-25 | 上海微创骨科医疗科技有限公司 | Form pusher and the method for the barbed pedicle screw of tool |
| US9370383B2 (en) * | 2013-03-15 | 2016-06-21 | Zimmer Biomet Spine, Inc. | Minimally invasive splitable pedicle screw extender |
-
2017
- 2017-01-22 CN CN201710053995.1A patent/CN106691570B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327054C1 (en) * | 1993-08-12 | 1995-04-13 | Schaefer Micomed Gmbh | Ventral intervertebral implant |
| US5702391A (en) * | 1995-05-16 | 1997-12-30 | Lin; Chih-I | Intervertebral fusion device |
| WO1997048352A1 (en) * | 1996-06-18 | 1997-12-24 | Mehran Kasra | Bone prosthesis fixation device and methods of using same |
| CN102322467A (en) * | 2011-09-07 | 2012-01-18 | 梁幸平 | A kind of locking nail |
| CN202960735U (en) * | 2012-11-23 | 2013-06-05 | 尹国瑞 | Self-locking bone nail |
| CN104287819A (en) * | 2014-10-09 | 2015-01-21 | 中国人民解放军第四军医大学 | Medical pedicle screw component with telescopic double thread and capable of resisting pullout |
| CN204169918U (en) * | 2014-10-09 | 2015-02-25 | 中国人民解放军第四军医大学 | The pedicle screw assemblies that the two screw thread of a kind of Medical flexible, resistance to plucking go out |
| CN204744381U (en) * | 2015-06-26 | 2015-11-11 | 重庆医科大学附属永川医院 | Locking pedicle of vertebral arch screw that takes off |
| CN205423448U (en) * | 2016-03-15 | 2016-08-03 | 天津市华泰金峰科技有限公司 | High stability metal peg |
| CN205667574U (en) * | 2016-04-16 | 2016-11-02 | 中南大学湘雅三医院 | The nail that can quickly remove |
| CN207125783U (en) * | 2017-01-22 | 2018-03-23 | 北京爱康宜诚医疗器材有限公司 | Screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106691570A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11701148B2 (en) | Bone screw implant for sacroiliac joint fusion | |
| JP5385668B2 (en) | Instruments and systems for assembling bone fixation devices | |
| ES2552987T3 (en) | Polyaxial bone anchoring device | |
| JP6285554B2 (en) | Mounting and connecting members for thumb carpal metacarpal joint prosthesis, and thumb carpal metacarpal joint prosthesis | |
| US20080147128A1 (en) | Cannulated bone screw and cannulated driver for the implantation thereof | |
| CN106691570B (en) | Screw nail | |
| WO2005081692A3 (en) | Closure for rod receiving orthopedic implant having a pair of spaced apertures for removal | |
| US11026723B2 (en) | Pedicle screw assemblies with 3D printed components | |
| EP4144322A3 (en) | Implant component for a humerus | |
| US20180243053A1 (en) | Impression jig assembly | |
| CN116035774B (en) | Long bone prosthesis | |
| RU2498787C2 (en) | Endoprosthesis with insertion joint and improved rotational protection | |
| CN207125783U (en) | Screw | |
| JP2012045152A (en) | Stick cosmetic delivery container | |
| CN211156486U (en) | Knee joint fusion prosthesis | |
| CN111281615A (en) | Total acetabular prosthesis | |
| MX2022012612A (en) | Cortically stabilized bone anchoring implant. | |
| KR20150051348A (en) | Screw for implant | |
| CN211213691U (en) | Bone filling prosthesis | |
| CN110848234A (en) | Locking mechanism | |
| CN204839712U (en) | Hollow rivet | |
| CN211211439U (en) | Electronic cigarette | |
| CN213787728U (en) | Tail cap for intramedullary nail system and intramedullary nail system thereof | |
| WO2006000289A1 (en) | Abutment of dental implant | |
| AU2018283948B2 (en) | Expanding anchor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |