CN106963447B - Intramedullary canal central device - Google Patents
Intramedullary canal central device Download PDFInfo
- Publication number
- CN106963447B CN106963447B CN201710108368.3A CN201710108368A CN106963447B CN 106963447 B CN106963447 B CN 106963447B CN 201710108368 A CN201710108368 A CN 201710108368A CN 106963447 B CN106963447 B CN 106963447B
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- CN
- China
- Prior art keywords
- drill bit
- sleeve
- intramedullary canal
- inner core
- guide
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- 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.)
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- 238000005553 drilling Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 208000005189 Embolism Diseases 0.000 abstract description 8
- 208000007536 Thrombosis Diseases 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 description 13
- 210000000988 bone and bone Anatomy 0.000 description 10
- 230000006378 damage Effects 0.000 description 9
- 230000001054 cortical effect Effects 0.000 description 7
- 239000004568 cement Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003275 diaphysis Anatomy 0.000 description 1
- 210000001513 elbow Anatomy 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001009 osteoporotic effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000707 wrist Anatomy 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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/164—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans intramedullary
-
- 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
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a intramedullary canal center device, comprising: a pipe sleeve; the inner core is rotatably arranged in the pipe sleeve in a penetrating way; the drill bit is arranged at one end of the inner core, and the drilling end of the drill bit is positioned at the outer side of the pipe sleeve so as to drill into the intramedullary cavity embolus. The intramedullary canal central device solves the problem that the diaphyseal cortex is easy to be damaged when the thrombus is taken out in the prior art.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a intramedullary canal center.
Background
Cement-type prosthetic replacement is a treatment particularly useful for elderly and osteoporotic patients and is widely used, including hip, knee, elbow, ankle, wrist, etc., particularly in long prostheses such as femoral stems, prosthetic extension rod prostheses, or prosthetic extension rod portions.
Along with the popularization of the treatment mode, joint revision caused by postoperative trauma, infection, aseptic loosening and other reasons is also greatly increased year by year. One of the difficulties in joint revision surgery is to open the distal medullary cavity lock of the original prosthesis caused by the distal cement plug of the long prosthesis or bone sclerosis, so as to replace the prosthesis of a longer model as required.
However, the current methods are not only time-consuming and inconvenient to operate, but also easily cause the destruction of diaphyseal cortex, and mainly comprise the following aspects:
1. various drill bits were used to directly drill holes. Because the cement embolus or sclerotin is hard and has irregular surface, the drill bit is easy to deflect to cause the penetration damage of cortical bone, and further causes the poor position of the expanded marrow penetrating out of the cortical bone and the prosthesis and even diaphysis fracture;
2. the distal cortical bone of the prosthesis is windowed and the emboli are removed. This approach can significantly increase trauma, lengthen the surgical incision and lead to a distal cortical bone defect of the prosthesis, significantly increasing the risk of post-operative local fracture.
Disclosure of Invention
The invention mainly aims to provide a intramedullary canal central device, which solves the problem that the diaphyseal cortex is easy to damage when a bolt is taken out in the prior art.
In order to achieve the above object, the present invention provides a intramedullary canal sealer comprising: a pipe sleeve; the inner core is rotatably arranged in the pipe sleeve in a penetrating way; the drill bit is arranged at one end of the inner core, and the drilling end of the drill bit is positioned at the outer side of the pipe sleeve so as to drill into the intramedullary cavity embolus.
Further, the intramedullary canal applicator further comprises: the guide sleeve is arranged on the pipe sleeve, and one end of the drill bit penetrates through the guide sleeve and then is connected with the inner core.
Further, one end of the pipe sleeve is provided with a connecting thread, the guide sleeve is provided with a fixing thread matched with the connecting thread, and the guide sleeve is installed on the pipe sleeve through threaded connection of the connecting thread and the fixing thread.
Further, the connecting screw thread sets up on the inner wall of pipe box, and the uide bushing is including being used for inserting the guide part of establishing in the pipe box, and the fixed screw thread sets up on the outer wall of guide part.
Further, the uide bushing includes interconnect's guiding part and marrow cavity occupation portion, and guiding part sets up in marrow cavity occupation portion's one side, and guiding part is used for being connected with the pipe box, and marrow cavity occupation portion is located the outside of pipe box.
Further, one end of the inner core, which is far away from the drill bit, is provided with a power interface for connecting a driver, and the driver is connected with the power interface to drive the inner core to rotate.
Further, a drill bit interface for connecting a drill bit is arranged on the inner core, and one end of the drill bit is inserted into the drill bit interface.
Further, the drill bit interface is a polygonal interface, one end of the drill bit is provided with a polygonal connector matched with the polygonal interface, and the polygonal connector is inserted into the drill bit interface.
Further, the inner core is provided with a fixing hole for the fixing nail to pass through, and the fixing hole is communicated with the drill bit interface so that the fixing nail is connected with the drill bit after passing through the fixing hole.
Further, the pipe sleeve comprises an elbow pipe part and a straight pipe part which are connected with each other, and the drill bit is arranged at one end of the straight pipe part far away from the elbow pipe part.
Further, the bent pipe part is a flexible pipe body, and the inner core is a flexible inner core.
The intramedullary cavity centrally-mounted device comprises the pipe sleeve and the inner core, and the drill bit is arranged at one end of the inner core, and the inner core is rotatably arranged in the pipe sleeve in a penetrating manner, and the drilling end of the drill bit is positioned at the outer side of the pipe sleeve, so that the drill bit can be driven to rotate by driving the inner core to rotate, and then the drill bit is drilled into the intramedullary cavity embolus. Therefore, the intramedullary cavity centrally-mounted device can be conveniently perforated by using the drill bit, and the situation of cortical bone punch-through damage caused by drill bit deflection can be reduced, so that the problem of diaphyseal damage easily caused by taking out the plug in the prior art 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 specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 shows a schematic structural view of an embodiment of a intramedullary canal applicator according to the present invention;
FIG. 2 shows a schematic view of the cannula of the intramedullary canal applicator of FIG. 1;
FIG. 3 shows a schematic view of the core of the intramedullary canal applicator of FIG. 1;
FIG. 4 shows a schematic view of the drill bit of the intramedullary canal center of FIG. 1;
FIG. 5 shows a schematic view of a view of the guide sleeve of the intramedullary canal applicator of FIG. 1; and
fig. 6 shows a schematic view of another view of the guide sleeve of the intramedullary canal applicator of fig. 1.
Wherein the above figures include the following reference numerals:
10. a pipe sleeve; 11. a connecting thread; 12. a bent pipe part; 13. a straight pipe section; 20. an inner core; 21. a power interface; 22. a drill bit interface; 23. a fixing hole; 30. a drill bit; 31. a polygonal joint; 32. a threaded portion; 33. a polish rod part; 34. a nail hole; 40. a guide sleeve; 41. a fixed thread; 42. a guide part; 43. a medullary cavity occupying part; 44. a guide hole; 50. and (5) fixing nails.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The present invention provides a intramedullary canal applicator, please refer to fig. 1-6, comprising: a tube sleeve 10; the inner core 20 is rotatably arranged in the pipe sleeve 10 in a penetrating way; the drill bit 30, the drill bit 30 is installed at one end of the core 20, and the penetration end of the drill bit 30 is located at the outer side of the socket 10 to drill into the intramedullary canal tap.
The intramedullary cavity mid-setting device comprises a pipe sleeve 10 and an inner core 20, wherein a drill bit 30 is arranged at one end of the inner core 20, and the inner core 20 is rotatably penetrated in the pipe sleeve 10, and the drilling end of the drill bit 30 is positioned at the outer side of the pipe sleeve 10, so that the drill bit 30 can be driven to rotate by driving the inner core 20 to rotate, and the drill bit 30 is further drilled into a intramedullary cavity embolus. Therefore, the intramedullary cavity centrally-mounted device can be conveniently perforated by using the drill bit, and the situation of cortical bone punch-through damage caused by drill bit deflection can be reduced, so that the problem of diaphyseal damage easily caused by taking out the plug in the prior art is solved.
To effect steering of the drill bit 30, as shown in FIG. 1, the intramedullary canal center further includes: the guide sleeve 40, the guide sleeve 40 is installed on the pipe sleeve 10, and one end of the drill bit 30 passes through the guide sleeve 40 and then is connected with the inner core 20.
In order to ensure that the drill bit 30 passes through the guide sleeve 40, as shown in fig. 5 and 6, a guide hole 44 is provided in the guide sleeve 40, and the drill bit 30 passes through the guide hole 44. In this way, the drill bit 30 can be guided relatively easily.
Preferably, the drill 30 in this embodiment is a self-tapping screw.
In order to mount the guide bush 40, as shown in fig. 2, 5 and 6, one end of the pipe sleeve 10 is provided with a connecting screw thread 11, the guide bush 40 is provided with a fixing screw thread 41 matched with the connecting screw thread 11, and the guide bush 40 is mounted on the pipe sleeve 10 through screw connection of the connecting screw thread 11 and the fixing screw thread 41. In this way, a threaded connection between the sleeve 10 and the guide sleeve 40 can be achieved relatively easily.
Specifically, the connection screw 11 is provided on the inner wall of the socket 10, the guide bush 40 includes a guide portion 42 for insertion into the socket 10, and the fixing screw 41 is provided on the outer wall of the guide portion 42. In this way, the connection between the sleeve 10 and the sleeve 40 can be achieved by inserting the sleeve 40 into the sleeve 10.
In the present embodiment, the guide sleeve 40 includes a guide portion 42 and a medullary cavity occupation portion 43 connected to each other, the guide portion 42 is disposed at one side of the medullary cavity occupation portion 43, the guide portion 42 is used for connection with the socket 10, and the medullary cavity occupation portion 43 is located at the outer side of the socket 10. The present embodiment can more conveniently occupy the space in the medullary cavity by providing the medullary cavity occupying part 43, and can more conveniently realize the connection between the guide sleeve 40 and the sleeve 10 by providing the guide part 42.
In order to conveniently drive the core 20 to rotate, a power interface 21 for connecting a driver is arranged at one end of the core 20 away from the drill bit 30, and the driver is connected with the power interface 21 to drive the core 20 to rotate.
In order to conveniently realize the connection between the core 20 and the drill bit 30, as shown in fig. 3, a drill bit interface 22 for connecting the drill bit 30 is provided on the core 20, and one end of the drill bit 30 is inserted into the drill bit interface 22.
The specific structural form of the drill bit interface 22 is that, as shown in fig. 3 and 4, the drill bit interface 22 is a polygonal interface, one end of the drill bit 30 is provided with a polygonal connector 31 adapted to the polygonal interface, and the polygonal connector 31 is inserted into the drill bit interface 22.
In this embodiment, as shown in fig. 1 and 3, the core 20 is provided with a fixing hole 23 for passing the fixing pin 50 therethrough, and the fixing hole 23 communicates with the bit interface 22 so that the fixing pin 50 is connected to the bit 30 after passing through the fixing hole 23. In this embodiment, the fixing holes 23 are provided, and the fixing nails 50 pass through the fixing holes 23, so that the fixing of the drill bit 30 can be conveniently realized, and the drill bit 30 is prevented from being separated from the inner core 20.
The specific structure of the pipe sleeve 10 in this embodiment is that the pipe sleeve 10 includes an elbow pipe portion 12 and a straight pipe portion 13 connected to each other, and a drill bit 30 is disposed at one end of the straight pipe portion 13 away from the elbow pipe portion 12.
In this embodiment, the elbow 12 is a flexible tube and the core 20 is a flexible core. The present embodiment allows the intramedullary canal accumulator to bend along a path by forming both the elbow 12 and the core 20 from flexible materials, thereby accommodating bending deformations of the intramedullary canal.
The specific structure of the intramedullary canal sealer in this embodiment is described in detail below:
the intramedullary canal central device in the embodiment is a flexible intramedullary canal central device, and comprises a flexible outer sleeve, a flexible inner core, a guide sleeve, a self-tapping screw and a fixing nail, which are assembled together for use.
The flexible jacket in this embodiment includes a curved portion that can bend along a path and a straight portion having connecting threads for connecting to the guide sleeve.
The flexible core in this embodiment structurally includes a power interface for connecting to a power tool to provide rotational power to the self-tapping screw.
The flexible core in this embodiment structurally includes square shaped interfaces and anchor holes for attaching and securing anchor screws.
The drill bit in this embodiment is a self-tapping screw, and structurally includes a nail hole 34, and the nail hole 34 is a blind hole, and after being fixed by a fixing nail, the self-tapping screw can be prevented from moving axially.
The self-tapping screw in this embodiment structurally includes a rod portion 33 and a threaded portion 32, the rod portion 33 being intended to move within a guide sleeve 40, the threaded portion 32 being intended to be screwed into a intramedullary canal tap.
The guide sleeve 40 structurally includes a fixed screw for the guide sleeve mounting and the flexible core, and structurally also includes a screw guide hole and a screw guide chamfer for the guiding of the tapping screw.
In addition, the guide sleeve structurally comprises a medullary cavity occupying part for occupying the medullary cavity position. The marrow cavity occupying part of the guide sleeve is of a customized structure, so that the screw guide hole is ensured to be positioned in the center or the expected position of the marrow cavity.
The guide holes 44 of the guide sleeve have a depth that ensures that the tapping screw is perpendicular to the guide sleeve 40 and is not affected by square changes in the flexible core.
In a specific application, the details are as follows:
before operation, a guiding sleeve with a proper shape is selected according to the shape of the medullary cavity and is arranged on the flexible outer sleeve, a tapping screw with a proper length is arranged on the flexible inner core and is arranged in the flexible outer sleeve to form a customized flexible medullary cavity middle device.
In operation, the assembled flexible intramedullary canal central device is installed into the intramedullary canal as required, and the other end of the flexible inner core is provided with power and rotated, and the tapping screw is tightly screwed into the cement plug.
At this time, the flexible inner core connected with the power is pulled outwards, and if the embolus can be taken out, the embolus is successfully taken out; if the bolt can not be taken out, the above process is repeated by adopting the guide sleeve of the large-diameter screw guide hole and the self-tapping screw of the large-diameter screw thread part until the bolt can be taken out, or the cement bolt becomes a shell body because of adopting the large-diameter self-tapping screw, so that the bolt can be taken out easily by adopting other tools.
The marrow cavity middle setting device has the beneficial effects that:
1. the drill is conveniently controlled to the center of the medullary cavity through the centrally-mounted device, so that the central opening and the reaming of the far end of the locking medullary cavity are easy to realize, and the operation efficiency and the safety are improved;
2. the middle device is flexible, and has strong applicability to bending or deformed long bones and the like;
3. the far end of the middle device adopts a quasi-customized design, is suitable for marrow cavities with different shapes, and has strong universality;
4. the long strip-shaped design is adopted at the far end of the middle device, so that the drill bit is ensured not to hurt bone;
5. the screw thread part of the tapping screw and the screw guide hole of the guide sleeve adopt a series of sizes, so that the gradual erosion of the center of the tap can be realized, and the final extraction of the tap is ensured.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
the intramedullary cavity mid-setting device comprises a pipe sleeve 10 and an inner core 20, wherein a drill bit 30 is arranged at one end of the inner core 20, and the inner core 20 is rotatably penetrated in the pipe sleeve 10, and the drilling end of the drill bit 30 is positioned at the outer side of the pipe sleeve 10, so that the drill bit 30 can be driven to rotate by driving the inner core 20 to rotate, and the drill bit 30 is further drilled into a intramedullary cavity embolus. Therefore, the intramedullary cavity centrally-mounted device can be conveniently perforated by using the drill bit, and the situation of cortical bone punch-through damage caused by drill bit deflection can be reduced, so that the problem of diaphyseal damage easily caused by taking out the plug in the prior art is solved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A intramedullary canal applicator, comprising:
a tube sleeve (10);
an inner core (20), wherein the inner core (20) is rotatably arranged in the pipe sleeve (10) in a penetrating way;
a drill bit (30), the drill bit (30) is installed at one end of the inner core (20), and the drilling end of the drill bit (30) is positioned at the outer side of the pipe sleeve (10) so as to drill into a intramedullary cavity plug;
the pipe sleeve (10) comprises an elbow pipe part (12) and a straight pipe part (13) which are connected with each other, and the drill bit (30) is arranged at one end of the straight pipe part (13) far away from the elbow pipe part (12);
the bent pipe part (12) is a flexible pipe body, and the inner core (20) is a flexible inner core;
the intramedullary canal applicator further comprises: the guide sleeve (40) is arranged on the pipe sleeve (10), and one end of the drill bit (30) passes through the guide sleeve (40) and then is connected with the inner core (20);
wherein the guide sleeve (40) is arranged on the straight pipe part (13);
one end of the pipe sleeve (10) is provided with a connecting thread (11), the guide sleeve (40) is provided with a fixing thread (41) matched with the connecting thread (11), and the guide sleeve (40) is installed on the pipe sleeve (10) through threaded connection of the connecting thread (11) and the fixing thread (41).
2. The intramedullary canal applicator according to claim 1, characterized in that the connecting threads (11) are provided on an inner wall of the sleeve (10), the guide sleeve (40) comprises a guide portion (42) for insertion into the sleeve (10), and the fixing threads (41) are provided on an outer wall of the guide portion (42).
3. The intramedullary canal applicator according to claim 1, wherein the guide sleeve (40) comprises a guide portion (42) and an intramedullary canal space portion (43) connected to each other, the guide portion (42) being arranged on one side of the intramedullary canal space portion (43), the guide portion (42) being adapted to be connected to the sleeve (10), the intramedullary canal space portion (43) being located outside the sleeve (10).
4. The intramedullary canal accumulator according to claim 1, characterized in that an end of the core (20) remote from the drill bit (30) is provided with a power interface (21) for connection to a driver, which is connected to the power interface (21) for driving the core (20) in rotation.
5. The intramedullary canal accumulator according to claim 1, characterized in that a drill bit interface (22) for connecting the drill bit (30) is provided on the inner core (20), one end of the drill bit (30) being inserted into the drill bit interface (22).
6. The intramedullary canal accumulator according to claim 5, characterized in that the drill bit interface (22) is a polygonal interface, one end of the drill bit (30) is provided with a polygonal connector (31) adapted to the polygonal interface, and the polygonal connector (31) is inserted into the drill bit interface (22).
7. The intramedullary canal applicator according to claim 6, wherein the core (20) is provided with fixation holes (23) for a fixation pin (50) to pass through, the fixation holes (23) being in communication with the drill bit interface (22) such that the fixation pin (50) is connected to the drill bit (30) after passing through the fixation holes (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108368.3A CN106963447B (en) | 2017-02-27 | 2017-02-27 | Intramedullary canal central device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108368.3A CN106963447B (en) | 2017-02-27 | 2017-02-27 | Intramedullary canal central device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106963447A CN106963447A (en) | 2017-07-21 |
| CN106963447B true CN106963447B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108368.3A Active CN106963447B (en) | 2017-02-27 | 2017-02-27 | Intramedullary canal central device |
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| Country | Link |
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| CN (1) | CN106963447B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5047035A (en) * | 1990-08-10 | 1991-09-10 | Mikhail Michael W E | System for performing hip prosthesis revision surgery |
| US6524319B1 (en) * | 1998-12-22 | 2003-02-25 | Ferton Holding S.A. | Surgical instrument for mechanically removing bone cement |
| DE102004043315A1 (en) * | 2004-09-08 | 2006-03-30 | Andrej Nowakowski | Bone marrow cavity boring system for removal of foreign substances such as polymethyl methacrylate comprises a guide rod provided with a centering and support unit |
| CN201572163U (en) * | 2009-11-30 | 2010-09-08 | 钱齐荣 | Hollow femur far-end intra-medullary positioning and guiding device |
| CN202446195U (en) * | 2011-11-28 | 2012-09-26 | 北京纳通科技集团有限公司 | Electric rebuilding appliance for hip joint rebuilding operation |
| CN204033419U (en) * | 2014-07-30 | 2014-12-24 | 常州健力邦德医疗器械有限公司 | Medical expansion marrow bores |
| CN105534564A (en) * | 2016-02-24 | 2016-05-04 | 中南大学湘雅医院 | Marrow cavity bone cement extractor |
| CN205586067U (en) * | 2016-02-25 | 2016-09-21 | 北京积水潭医院 | Bone cement cracker in pulp cavity |
-
2017
- 2017-02-27 CN CN201710108368.3A patent/CN106963447B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5047035A (en) * | 1990-08-10 | 1991-09-10 | Mikhail Michael W E | System for performing hip prosthesis revision surgery |
| US6524319B1 (en) * | 1998-12-22 | 2003-02-25 | Ferton Holding S.A. | Surgical instrument for mechanically removing bone cement |
| DE102004043315A1 (en) * | 2004-09-08 | 2006-03-30 | Andrej Nowakowski | Bone marrow cavity boring system for removal of foreign substances such as polymethyl methacrylate comprises a guide rod provided with a centering and support unit |
| CN201572163U (en) * | 2009-11-30 | 2010-09-08 | 钱齐荣 | Hollow femur far-end intra-medullary positioning and guiding device |
| CN202446195U (en) * | 2011-11-28 | 2012-09-26 | 北京纳通科技集团有限公司 | Electric rebuilding appliance for hip joint rebuilding operation |
| CN204033419U (en) * | 2014-07-30 | 2014-12-24 | 常州健力邦德医疗器械有限公司 | Medical expansion marrow bores |
| CN105534564A (en) * | 2016-02-24 | 2016-05-04 | 中南大学湘雅医院 | Marrow cavity bone cement extractor |
| CN205586067U (en) * | 2016-02-25 | 2016-09-21 | 北京积水潭医院 | Bone cement cracker in pulp cavity |
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| Publication number | Publication date |
|---|---|
| CN106963447A (en) | 2017-07-21 |
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