CN103263290B - Screw implantation sighting device - Google Patents
Screw implantation sighting device Download PDFInfo
- Publication number
- CN103263290B CN103263290B CN201310202320.0A CN201310202320A CN103263290B CN 103263290 B CN103263290 B CN 103263290B CN 201310202320 A CN201310202320 A CN 201310202320A CN 103263290 B CN103263290 B CN 103263290B
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- CN
- China
- Prior art keywords
- sight
- back segment
- leading portion
- sighting device
- positioning
- 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.)
- Expired - Fee Related
Links
- 238000002513 implantation Methods 0.000 title abstract 4
- 210000001931 lesser pelvis Anatomy 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 2
- 210000004197 pelvis Anatomy 0.000 abstract description 12
- 210000000588 acetabulum Anatomy 0.000 abstract description 6
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 10
- 208000010392 Bone Fractures Diseases 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 2
- 206010061213 Iatrogenic injury Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001981 hip bone Anatomy 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 210000002239 ischium bone Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000003689 pubic bone Anatomy 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 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
- A61B17/16—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
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1742—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip
- A61B17/1746—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip for the acetabulum
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)
- Prostheses (AREA)
Abstract
The invention discloses a screw implantation sighting device and belongs to the field of orthopedics department medical instruments. The screw implantation sighting device comprises a sighting device front section and a sighting device back section, the back portion of the sighting device front section is movably connected with the front portion of the sighting device back section, the front portion and the bottom face of the sighting device front section are matched with the edge of the small pelvis, and a plurality of locating through holes are formed in the sighting device front section. When the front portion and the bottom face of the sighting device front section are adhered to the edge of the small pelvis, an extension line of the locating through holes is located in an acetabulum posterior column, an arc-shaped limiting plate is arranged on the back portion of the sighting device back section, the arc-shaped limiting plate is formed by bending of the back portion of the sighting device back section towards the bottom face of the sighting device back section, and the radian of an inner arc of the arc-shaped limiting plate is matched with the upper edge of the anterior superior spine. The screw implantation sighting device is simple in structure and low in cost and has the advantages of being accurate in locating and convenient to operate due to the adoption of multipoint locating and fixing.
Description
Technical field
The present invention relates to orthopedic medical device field, particularly a kind of screw placement sight.
Background technology
Acetabular bone is positioned at hipbone lateral surface middle and lower part; jointly be made up of body of ilium, body of ischium and body of pubis; deeply recessed in hemispherical; towards front lower foreign side; and with femoral head associated section; fracture of acetabulum is the common fracture compound comminuted of a kind of orthopaedics; fracture of acetabulum is generally that acetabular bone place is by greater impact power; therefore; fracture of acetabulum usually can along with acetabular anterior column and acetabular posterior column impaired fracture simultaneously; because acetabular bone position is comparatively dark, it is complicated to dissect, replacement and fixation is difficult, the reasons such as complication is many are difficult problems for field of orthopaedics always.
At present for fracture of acetabulum, general employing hold-down screw is fixed fracture affected part, in operation technique, cannot precise quantification inserting needle direction, mostly current acetabular posterior column implanted prosthetics, be after acetabular posterior column percutaneous or minimal incision * reset, pedicle screw under X-ray examination, owing to needing repeatedly to have an X-rayed in operation, and the difficulty accurately implanted is comparatively large, and some hospital uses area of computer aided facility costly to navigate.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Owing to adopting area of computer aided facility to carry out the expensive order navigated, so, be difficult to extensively popularize in the treatment of fracture of acetabulum.
Summary of the invention
In order to solve the high problem of prior art Computer auxiliary equipment price, embodiments provide a kind of screw placement sight.Described technical scheme is as follows:
The invention provides a kind of screw placement sight, described sight comprises: sight leading portion and sight back segment, the rear portion of described sight leading portion and the front portion of described sight back segment are movably connected, the front portion of described sight leading portion and bottom surface and true pelvis edge suitable, described sight leading portion offers several positioning through hole, when the front portion of described sight leading portion and bottom surface and described true pelvis edge are fitted, the extended line of described positioning through hole is positioned at acetabular posterior column, the rear portion of described sight back segment arranges arc-shaped limit plate, described arc-shaped limit plate by described sight back segment bottom surface from rear portion to described sight back segment bend form, the inner arc radian of described arc-shaped limit plate and the outer rim of anterior superior iliac spine suitable, the anterior end face of described sight leading portion is provided with periosteal elevator, and described periosteal elevator is arched roof structure, and described arched roof structure is arched upward to the rear portion of described sight leading portion by the front portion of described sight leading portion.
Particularly, the rear portion of described sight leading portion is provided with slot, and the front portion of described sight back segment is provided with the latch suitable with described slot.
Particularly, described sight also comprises length adjustment device, described length adjustment device comprises screw rod and is fixed on the swivel bearing on described sight back segment, the screw matched with described screw rod is provided with in described sight leading portion, one end of described screw rod is inserted in described screw through described swivel bearing and described sight back segment, and the other end of described screw rod is placed in outside described sight back segment.
Further, described sight also comprises screw rod knob, and the described other end of described screw rod is located at by described screw rod knob.
Particularly, the end face of described sight leading portion is provided with boss, and described positioning through hole penetrates described boss along through direction.
Further, described positioning through hole is provided with three, and three described positioning through hole are in the arrangement triangular in shape of described boss.
Further, the inwall of described positioning through hole is provided with abutment sleeve.
Particularly, the rear portion of described sight back segment is fan-shaped.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: screw placement sight provided by the invention is with low cost, structure is simple, and the mode that the present invention adopts three-point fix fixing, namely true pelvis edge is withstood in sight front end, it is the first point herein, sight back segment blocks anterior superior iliac spine outer rim, now anterior superior iliac spine outer rim has at least fit with sight back segment at 2, material is thus formed three-point fix to fix, make sight fixing more firm, shake when can effectively avoid inserting needle to operate.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the plan structure schematic diagram of the screw placement sight that the embodiment of the present invention provides;
Fig. 2 is the sectional view of Fig. 1 along A-A direction;
Fig. 3 is the using state figure of the screw placement sight that the embodiment of the present invention provides.
In figure: 1-sight leading portion, 2-sight back segment, 3-arc-shaped limit plate, 4-latch, 5-slot, 6-screw rod, 7-screw, 8-swivel bearing, 9-screw rod knob, 10-boss, 11-abutment sleeve, 12-periosteal elevator, 13-guide pin, 14-inner arc, a-acetabular anterior column, b-acetabular posterior column, c-anterior superior iliac spine, d-true pelvis edge.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
The invention provides a kind of screw placement sight, as shown in figures 1 and 3, this sight comprises: sight leading portion 1 and sight back segment 2, the rear portion of sight leading portion 1 and the front portion of sight back segment 2 are movably connected, the front portion of sight leading portion 1 and bottom surface and true pelvis edge suitable, sight leading portion 1 offers several positioning through hole, when the front portion of sight leading portion 1 and bottom surface and true pelvis edge are fitted, the extended line of positioning through hole is positioned at acetabular posterior column, the rear portion of sight back segment 2 arranges arc-shaped limit plate 3, arc-shaped limit plate 3 by sight back segment 2 bottom surface from rear portion to sight back segment 2 bend form, inner arc 14 (see Fig. 2) radian of arc-shaped limit plate 3 and the outer rim of anterior superior iliac spine c suitable, wherein, true pelvis edge d is withstood in the front portion of sight leading portion 1, it is the first anchor point herein, the inner arc 14 of arc-shaped limit plate 3 blocks the outer rim of anterior superior iliac spine c, now the outer rim of anterior superior iliac spine c and the inner arc 14 of arc-shaped limit plate 3 are fitted, it is the second anchor point, the position of sight can be fixed by these two points, ensure accurate positioning.
Particularly, as shown in Figure 1, the rear portion of sight back segment 2 can be that fan-shaped, such sector structure can increase the contact area with the outer rim of anterior superior iliac spine c, firm sight.
In a kind of embodiment of inventive embodiments; as shown in Figure 2; the anterior end face of sight leading portion 1 is provided with periosteal elevator 12; periosteal elevator 12 is arched roof structure; this arched roof structure is arched upward to the rear portion of sight leading portion 1 by the front portion of sight leading portion 1; periosteal elevator 12 is for separating of iliacus and true pelvis edge d; when using sight; iliacus can withstand by periosteal elevator 12; so not only can protect abdominal cavity and iliacus; effectively can also expand surgical field of view, facilitate operation technique.
In conjunction with above-mentioned embodiment, in the another kind of embodiment of inventive embodiments, the rear portion of sight leading portion 1 is provided with slot 5, and the front portion of sight back segment 2 is provided with the latch 4 suitable with slot 5.This slot 5 extends along the length direction of sight leading portion 1, and similarly, this latch 4 extends along the length direction of sight back segment 2.The coarse adjustment that can realize sight length is coordinated by slot 5 and latch 4, wherein, slot 5 and the contact surface of latch 4 can enclose the large material of one deck frictional force, as silica gel, rubber etc., the frictional force between slot 5 and latch 4 can be increased like this, make connection therebetween more firm.
In conjunction with above-mentioned embodiment, in the another kind of embodiment of inventive embodiments, this sight can also comprise length adjustment device, the swivel bearing 8 that length adjustment device comprises screw rod 6 and is fixed on sight back segment 2, the screw 7 matched with screw rod 6 is provided with in sight leading portion 1, with in sight back segment 2, one end of screw rod 6 is inserted in screw 7 through swivel bearing 8 and sight back segment 2, in addition, also the screw 7 matched with screw rod 6 can be provided with in sight leading portion 1, one end of screw rod 6 is made to pass the screw 7 of swivel bearing 8 and sight leading portion 1 and insert in the screw 7 of sight back segment 2, the other end of screw rod 6 is placed in outside sight back segment 2, this length adjustment device can realize fine adjustment to the length of sight by the mode of threaded adjusting, simultaneously, sight can also be made more firm.
Preferably, sight also comprises screw rod knob 9, and the other end of screw rod 6 is located at by screw rod knob 9, installs this screw rod knob 9 and can facilitate rotary screw 6.
Preferably, as shown in Figure 2, the end face of sight leading portion 1 is provided with boss 10, in the present embodiment, this boss 10 is limited by the first side and the second side.Angle between this first side and end face of sight leading portion 1 is acute angle (see Fig. 1), and this boss 10 is triangular in shape along the cross section of the length direction of sight.Further, this first side semicircular in shape, this second side is cambered surface.The through boss 10 of positioning through hole is also through the first side of boss 10, and this first side is preferably vertical with the through direction of positioning through hole 11.If not this boss 10, then user in operation, be not easy to see clearly be arranged on sight leading portion 1 end face on positioning through hole, by installing this boss 10, positioning through hole is made to extend on the first side of boss 10 by the end face of sight leading portion 1, being convenient to user when using this sight, observing the positioning through hole on boss 10, and guide pin 13 is inserted in positioning through hole exactly.Easily know, this boss 10 also can be square or rectangular structure, as long as this boss 10 can higher than the end face of sight leading portion 1, and positioning through hole can extend on a side of this boss 10, and the sight line homonymy of this side and user.
Further, positioning through hole is provided with three, three positioning through hole can triangular in shapely be arranged on boss 10, preferably, three positioning through hole arrangements in equilateral triangle on boss 10, in addition, three positioning through hole also can be the length direction longitudinal arrangements along this sight leading portion 1 on boss 10, also can be transversely arranged along the width of sight leading portion 1.For different human body, the shape of its pelvis has larger difference, it is accurate that these three positioning through hole can ensure that sight is located, when using sight, guide pin 13 is placed in different abutment sleeve 11 respectively and carries out X-ray three-dimensional imaging, thus select abutment sleeve 11 also inserting needle the most accurately, in addition, when the positioning through hole of actual processing sight, first process pelvis model, the sight adapting to pelvis physiological curve is made for this pelvis model, again the sight of undressed positioning through hole is fixed on pelvis model, laser-beam drilling machine is utilized oppositely to punch from acetabular posterior column b direction, and sight leading portion 1 is punched, obtain positioning through hole, again abutment sleeve 11 is assembled in positioning through hole, the i.e. parent model of obtained sight, this parent model is utilized to set up 3-D graphic, machining or formed in mould mode is adopted to produce in batches, and for left and right acetabular bone, left and right amphitypy should be divided, mirror image is processed each other, this sight can adopt the material that can penetrate X-ray to make, facilitate in art and develop, simultaneously, the sight adapting to pelvis physiological curve can be made for pelvis model.
Preferably, the inwall of positioning through hole can also be provided with abutment sleeve 11, this abutment sleeve 11 plays the effect of reinforcing.
Further, abutment sleeve 11 can be metal sleeve, in order to reduce X-ray three-dimensional imaging number of times, reduce the damage that X-ray radiation causes patient, the surgery cost of patient can be saved simultaneously, abutment sleeve 11 adopts metal material to make, because human body acetabular posterior column b has certain size, and guide pin 13 is thinner, therefore with the human body in one-piece type scope, even if the size dimension of pelvis and shape have different, also can ensure to have at least the extended line of one piece of abutment sleeve 11 can penetrate acetabular posterior column b completely completely.
Further, this sight can also comprise guide pin 13, and the diameter of guide pin 13 and the internal diameter of abutment sleeve 11 match, and this guide pin 13 is for passing abutment sleeve 11 and being implanted in acetabular posterior column b.
Adopt the operating process of sight provided by the invention as follows: for acetabular anterior column a and acetabular posterior column b fracture patient, first reset acetabular anterior column a simultaneously, to insert sight leading portion 1 by the operative incision of acetabular anterior column a afterwards; For being only the patient that acetabular posterior column b fractures, can cut in the middle part of crista iliaca, sight leading portion 1 is inserted from incision, with periosteal elevator 12 iliacus upwards pushed open afterwards and inwardly push sight leading portion 1 always, until sight leading portion 1 is positioned at true pelvis edge d, the front portion of sight leading portion 1 is made to withstand true pelvis edge d, then turn screw rod 6, sight back segment 2 is made constantly to cut and move inward, until arc-shaped limit plate 3 fastens the outer rim of anterior superior iliac spine c and clamps, then carry out X-ray three-dimensional perspective, select the abutment sleeve 11 of the most applicable angle; Finally guide pin 13 is placed in abutment sleeve 11, tightens screw, complete operation technique.
Employing of the present invention and the suitable configuration of true pelvis edge physiological curve, as the profile of sight, adopt multipoint positioning fixed index, and have employed and be in collinear abutment sleeve as positioner with acetabular posterior column, registration, simple operation.Sight provided by the invention can be inserted from acetabular anterior column operative incision, without the need to cutting the acetabular posterior column place of patient, significantly reduce the iatrogenic injury to patient, secondly, sight mates with human pelvis physiological curve, fit closely with skeleton, now the extended line of abutment sleeve is positioned at acetabular posterior column, it is very accurate to locate, and, the mode that the embodiment of the present invention adopts three-point fix fixing, namely true pelvis edge is withstood in sight front end, it is the first point herein, sight back segment blocks anterior superior iliac spine outer rim, now anterior superior iliac spine outer rim has at least fit with sight back segment at 2, material is thus formed three-point fix to fix, effectively can avoid the shake of guide pin when entering like this, finally, structure of the present invention is simple, with low cost, easy and simple to handle, greatly can shorten operating time, reduce the suction volume of patient's anaesthetic, improve operation safety.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a screw placement sight, it is characterized in that, described sight comprises: sight leading portion (1) and sight back segment (2), the rear portion of described sight leading portion (1) and the front portion of described sight back segment (2) are movably connected, the front portion of described sight leading portion (1) and bottom surface and true pelvis edge (d) suitable, described sight leading portion (1) offers several positioning through hole, when the front portion of described sight leading portion (1) and bottom surface and described true pelvis edge (d) are fitted, the extended line of described positioning through hole is positioned at acetabular posterior column (b), the rear portion of described sight back segment (2) arranges arc-shaped limit plate (3), described arc-shaped limit plate (3) by described sight back segment (2) bottom surface from rear portion to described sight back segment (2) bend form, inner arc (14) radian of described arc-shaped limit plate (3) and the outer rim of anterior superior iliac spine (c) suitable, the anterior end face of described sight leading portion (1) is provided with periosteal elevator (12), described periosteal elevator (12) is arched roof structure, and described arched roof structure is arched upward to the rear portion of described sight leading portion (1) by the front portion of described sight leading portion (1).
2. sight according to claim 1, it is characterized in that, the rear portion of described sight leading portion (1) is provided with slot (5), and the front portion of described sight back segment (2) is provided with the latch (4) suitable with described slot (5).
3. sight according to claim 1, it is characterized in that, described sight also comprises length adjustment device, described length adjustment device comprises screw rod (6) and is fixed on the swivel bearing (8) on described sight back segment (2), the screw (7) matched with described screw rod (6) is provided with in described sight leading portion (1), one end of described screw rod (6) is inserted in described screw (7) through described swivel bearing (8) and described sight back segment (2), the other end of described screw rod (6) is placed in described sight back segment (2) outward.
4. sight according to claim 3, is characterized in that, described sight also comprises screw rod knob (9), and described screw rod knob (9) is located at the described other end of described screw rod (6).
5. the sight according to any one of claim 1-4, it is characterized in that, the end face of described sight leading portion (1) is provided with boss (10), and described positioning through hole penetrates described boss (10) along the through direction of positioning through hole.
6. sight according to claim 5, is characterized in that, described positioning through hole is provided with three, and three described positioning through hole are in the upper arrangement triangular in shape of described boss (10).
7. sight according to claim 5, is characterized in that, the inwall of described positioning through hole is provided with abutment sleeve (11).
8. sight according to claim 7, is characterized in that, described abutment sleeve (11) is metal sleeve.
9. the sight according to any one of claim 1-4, is characterized in that, the rear portion of described sight back segment (2) is fan-shaped.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202320.0A CN103263290B (en) | 2013-05-28 | 2013-05-28 | Screw implantation sighting device |
| PCT/CN2013/080174 WO2014190606A1 (en) | 2013-05-28 | 2013-07-26 | Screw implantation sighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202320.0A CN103263290B (en) | 2013-05-28 | 2013-05-28 | Screw implantation sighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103263290A CN103263290A (en) | 2013-08-28 |
| CN103263290B true CN103263290B (en) | 2015-07-01 |
Family
ID=49006990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310202320.0A Expired - Fee Related CN103263290B (en) | 2013-05-28 | 2013-05-28 | Screw implantation sighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103263290B (en) |
| WO (1) | WO2014190606A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496520B (en) * | 2016-01-05 | 2018-01-19 | 湖北嘉一三维高科股份有限公司 | A kind of individuation hip joint percutaneous puncture guider |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102657553A (en) * | 2012-05-02 | 2012-09-12 | 王钢 | Navigation template for implanting acetabulum posterior column screw |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100525721C (en) * | 2001-11-02 | 2009-08-12 | 国际专利所有者(开曼)有限公司 | Clamper for thighbone surgery |
| CN201131790Y (en) * | 2007-09-23 | 2008-10-15 | 王友 | Adjustable cross locking intramedullary nail positional lever |
| US8439925B2 (en) * | 2009-05-11 | 2013-05-14 | Trinity Orthopedics, Llc | Transiliac-transsacral method of performing lumbar spinal interventions |
| CN201668492U (en) * | 2010-04-23 | 2010-12-15 | 创生医疗器械(江苏)有限公司 | Intramedullary nail aiming device |
| US20120150242A1 (en) * | 2010-12-14 | 2012-06-14 | Richard Mannion | Method for placing spinal implants |
| US9445857B2 (en) * | 2011-07-21 | 2016-09-20 | Smith & Nephew, Inc. | Bone graft placement device |
| US9295497B2 (en) * | 2011-08-31 | 2016-03-29 | Biomet Manufacturing, Llc | Patient-specific sacroiliac and pedicle guides |
-
2013
- 2013-05-28 CN CN201310202320.0A patent/CN103263290B/en not_active Expired - Fee Related
- 2013-07-26 WO PCT/CN2013/080174 patent/WO2014190606A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102657553A (en) * | 2012-05-02 | 2012-09-12 | 王钢 | Navigation template for implanting acetabulum posterior column screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103263290A (en) | 2013-08-28 |
| WO2014190606A1 (en) | 2014-12-04 |
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Owner name: ZHANG YINGZE Free format text: FORMER OWNER: THIRD HOSPITAL OF HEBEI MEDICAL UNIVERSITY Effective date: 20150703 |
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Effective date of registration: 20150703 Address after: 050051 the dean's office of the Third Hospital of Hebei Medical University, 139 Jian Lu, Hebei, Shijiazhuang Patentee after: Zhang Yingze Address before: 050051 Shijiazhuang City, Hebei province self-improvement Road, No. 139 Patentee before: Third Hospital of Hebei Medical University |
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