CN112741676A - Simple single-side external fixing frame with multi-angle fixation and adjustable length in wartime - Google Patents
Simple single-side external fixing frame with multi-angle fixation and adjustable length in wartime Download PDFInfo
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- CN112741676A CN112741676A CN202110038997.XA CN202110038997A CN112741676A CN 112741676 A CN112741676 A CN 112741676A CN 202110038997 A CN202110038997 A CN 202110038997A CN 112741676 A CN112741676 A CN 112741676A
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- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
Abstract
The invention discloses a simple one-sided external fixation frame with fixed multi-angle and adjustable length in wartime, which comprises an intraosseous implantation half needle, an extraosseous fixation frame rod and a drafting extension screw rod, wherein two ends of the drafting extension screw rod are in threaded connection with the extraosseous fixation frame rod; the outer fixing frame rod is provided with a long strip hole along the length direction, a plurality of intra-osseous implantation half needles are connected with the outer fixing frame rod at the long strip hole, the included angle alpha between at least two intra-osseous implantation half needles is 0-30 degrees, and the included angle is positioned in the transverse section of the outer fixing frame rod; the simple one-sided external fixing frame device with adjustable length and multi-angle fixation in wartime has the advantages that the overall length is adjustable, the operation is simple, the carrying is convenient, the wound nursing is convenient, the shortening and angulation deformity of affected limbs can be reduced as much as possible in the early stage of injury when half needles are implanted into bones during emergency treatment in a battlefield, and the second-stage injury of the fractured ends to peripheral vascular nerves in the transportation process is reduced.
Description
Technical Field
The invention belongs to the field of external fixing frames for battlefield front line open fracture first aid, and particularly relates to a simple one-sided external fixing frame with multi-angle fixing and adjustable length in wartime.
Background
The battlefield injury presents the characteristics of high energy and high violence due to the appearance and the use of the large-scale destructive weapon in modern war. The incidence rate of open limb fracture is gradually increased due to high-energy injury, and the portable battlefield first-aid external fixing frame which is safe, effective, simple to operate and convenient to carry becomes a hotspot and a difficulty of research. The traditional splints, plasters or braces for curing open fracture on the front line of the battlefield have the following problems: 1) the bone fracture end is fixed by using splints, plaster or braces, the fixing effect is poor, the bone fracture end can still move in the transferring process of a wounded person, and the bleeding of the bone fracture end and the secondary damage to surrounding soft tissues are increased; 2) the limb shortness and angular deformity cannot be corrected in the early stage of injury only through simple fixation; 3) the wound nursing and transferring are inconvenient; 4) the binding is too tight, so that skin pressure sores are easily caused, limb ischemia and limb anoxia are easily caused, and secondary injury of the limbs is aggravated; the complications such as deformity of limbs in later stage are many.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a simple single-side external fixing frame device capable of adjusting the length and fixing in multiple angles in wartime.
In order to achieve the purpose, the invention adopts the technical scheme that: a simple one-sided external fixation frame with multi-angle fixation and adjustable length in wartime comprises an intraosseous implantation half needle, an extraosseous fixation frame rod and a drawing extension screw rod, wherein two ends of the drawing extension screw rod are in threaded connection with the extraosseous fixation frame rod; the outer fixing frame rod is provided with a long strip hole along the length direction, a plurality of intra-osseous implantation half needles are connected with the outer fixing frame rod at the long strip hole, the included angle alpha between at least two intra-osseous implantation half needles is 0-30 degrees, and the included angle is positioned in the transverse section of the outer fixing frame rod.
The external thread is arranged on the drafting extension screw rod, a threaded hole is formed in one end, connected with the drafting extension screw rod, of the external bone fixing frame rod in the axial direction, and the thread of the threaded hole is matched with the external thread.
And a locking nut is arranged at the joint of the external bone fixing frame rod and the drawing extension screw rod.
The middle part of draft extension screw rod sets up drive division, drive division adopts prism or cylinder structure, a plurality of blind holes are seted up along circumference to the drive division.
The semi-needle for implanting into the bone is connected with the external fixing frame rod through a thread clamp; the thread clamp comprises a bolt, a nut and a clamping block, a through hole is formed in the clamping block, the bolt penetrates through the through hole formed in the clamping block, the bolt is connected with the nut, the bolt simultaneously penetrates through the strip hole of the external bone fixing frame rod, a groove is formed in the surface, facing the external bone fixing frame rod, of the clamping block, the groove is used for accommodating a semi-needle implanted into a bone, and an anti-skidding structure is arranged on the surface of the groove.
Half needle slope of implanting in the bone passes the rectangular hole on the external fixation hack lever of bone, is equipped with three combination hole in the rectangular hole, combine the hole and establish the internal thread, be equipped with the contained angle between two combination holes of keeping away from each other in same rectangular hole, implant in the bone half needle with combine hole threaded connection, implant in the bone half needle and combine the hole junction and be provided with fastening nut.
The external skeletal fixation frame rod is divided into at least two sections, namely a first rod section and a second rod section, and the first rod section is connected with the second rod section through a threaded rod; the joints of the first rod section and the second rod section with the threaded rod are provided with locking nuts, and the second rod section is connected with the drafting extension screw rod.
Total length L of external fixing frame1Is 350mm, and the rod length L of the external bone fixing frame rod2170mm in length, and the length of the strip hole is 110 mm; total length L of traction pressure bar460mm, and the maximum traction and compression length is 50 mm.
The surface of the percutaneous part of the semi-needle implanted into the bone is provided with a groove and an MOF coating, the width W of the groove is 80 +/-5 mu m, the width L of a ridge is 60 +/-5 mu m, and the depth H of the groove is 10 mu m; the MOF coating specifically comprises: constructing a hybrid coating Mg/Zn-MOF74 of a magnesium/zinc metal organic framework on the surface of the titanium subjected to alkali heat treatment; the thickness of the MOF coating was 8.5. + -. 1.5. mu.m.
The external bone fixing frame rod is a carbon fiber rod or a titanium alloy rod.
Compared with the prior art, the invention has at least the following beneficial effects:
the simple single-side external fixing frame device with the adjustable length and the multi-angle fixation in wartime has the advantages that the overall length is adjustable, the relative angle of the half needles implanted in bones can be changed, the half needles implanted in bones can be used for realizing emergency treatment in a battlefield, the operation is simple, the carrying is convenient, the wound nursing and transferring are convenient, the shortening and angulation deformity of affected limbs can be reduced as far as possible in the early stage of injury, the secondary injury of fractured ends to peripheral vascular nerves in the process of transferring is reduced, and the possibility of deformity of later-stage limbs is reduced.
Furthermore, the surface of the implant nail is designed with a physical structure and is combined with bioactive surface modification in different modes, so that the surface has a physically modified structure and biological activity, the biological fixation function and the biological activity fixation function are exerted, and the biological sealing performance and the antibacterial performance of the percutaneous implant can be improved; reduce the nail tract reaction of the percutaneous implant to surrounding soft tissues, such as cutting, irritation, and the like, and reduce the occurrence of nail tract infection and retrograde bone infection caused by percutaneous implantation.
Drawings
Fig. 1 is a schematic view of an external fixing frame rod structure of the present invention.
Fig. 2 is a schematic view of an extension rod connected with a rod for external fixation of bones according to the present invention.
FIG. 3 is a schematic cross-sectional view of the A-A section of the external frame fixing rod structure of the present invention.
Fig. 4 is a schematic view of the connection between the two external skeletal fixation frame rods and the traction extension rod according to the present invention.
Fig. 5 is a schematic view of another external skeletal fixation rod structure according to another embodiment of the present invention.
Fig. 6 is a schematic view of a combined implementation of the structures shown in fig. 4 and 5 according to the present invention.
Fig. 7 is a partial view of a groove in the surface of an endosseous implanted half-needle according to the present invention.
Fig. 8 is a schematic view of the connection of the semi-needle for intraosseous implantation and the external fixator frame rod of the invention.
FIG. 9a is a schematic view of a truncated cone-shaped clamping block in accordance with an embodiment of the present invention.
Figure 9b is a schematic view of another alternative frustoconical clamping block embodying the present invention.
FIG. 9c is a schematic view of a rectangular clamping block in accordance with the present invention.
Figure 9d is a schematic view of another rectangular clamping block in accordance with the present invention.
Fig. 10 is a schematic size diagram of various parts of the external fixation frame rod according to the present invention.
FIG. 11 is a schematic view showing a multi-angle arrangement of half needles for intraosseous implantation according to the present invention.
In the attached drawing, 1-a half needle for intraosseous implantation, 2-a frame rod for extraosseous fixation, 21-a first rod section, 22-a second rod section, 3-a drawing extension screw, 23-a strip hole, 31-a bolt, 32-a nut, 33-a clamping block, 4-a locking nut and 5-a blind hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, 3, 4 and 8, a simple one-sided external fixator device with adjustable length and multi-angle fixation in wartime comprises an intraosseous implantation half needle 1, an extraosseous fixator frame rod 2 and a drafting extension screw 3, wherein two ends of the drafting extension screw 3 are in threaded connection with the extraosseous fixator frame rod 2; the outer fixing frame rod 2 is provided with a strip-shaped hole 23 along the length direction, a plurality of intra-osseous implantation half needles 1 are connected with the outer fixing frame rod 2 at the strip-shaped hole 23, the included angle alpha between at least two intra-osseous implantation half needles 1 is 0-30 degrees, and the included angle is positioned in the transverse section of the outer fixing frame rod 2.
Referring to fig. 2, the extension screw 3 is provided with an external thread, and a threaded hole is axially formed at one end of the external fixation frame rod 2 connected to the extension screw 3, and the thread of the threaded hole is matched with the external thread.
The middle part of the drafting extension screw rod 3 is provided with a driving part, the driving part adopts a prism structure or a cylinder structure, and further, a plurality of blind holes 5 are formed in the circular structure along the circumferential direction.
The intraosseous implantation half needle 1 is connected with the extraosseous fixing frame rod 2 through a thread clamp; the thread clamp comprises a bolt 31, a nut 32 and a clamping block 33, a through hole is formed in the clamping block 33, the bolt 31 penetrates through the through hole formed in the clamping block, the bolt 31 is connected with the nut 32, the bolt 31 simultaneously penetrates through the strip hole 23 of the external bone fixing frame rod 2, a groove is formed in the surface, facing the external bone fixing frame rod 2, of the clamping block 33, the groove is used for containing the intra-bone implantation half needle 1, and an anti-skidding structure is arranged on the surface of the groove.
The intraosseous implantation half needle 1, the extraosseous fixing frame rod 2, the drawing extension screw 3 and the thread clamp are all made of titanium alloy.
Referring to fig. 9a, 9b, 9c and 9d, the clamping block 33 is in the shape of a cuboid or a truncated cone, the groove is in the shape of a cylinder or a hexagon prism, although other prism shapes can be adopted, the shape of the groove is the same as that of the joint of the half bone implantation needle 1, the half bone implantation needle 1 is prevented from rotating, and anti-slip structures, such as surface anti-slip concave-convex stripes or tooth-shaped structures, are arranged on the surface of the groove.
Referring to fig. 11, the half intraosseous implantation needles 1 obliquely penetrate through the elongated holes of the external skeletal fixation frame rod 2, an included angle is formed between two adjacent half intraosseous implantation needles 1, and the oblique direction of the half intraosseous implantation needles 1 is along the circumferential direction of the external skeletal fixation frame rod 2.
Referring to fig. 5 and 6, as an alternative embodiment of the multi-angle fixation, the external fixator rod 2 is divided into at least two segments, a first segment 21 and a second segment 22, the first segment 21 and the second segment 22 are connected by a threaded rod; the joints of the first rod section 21 and the second rod section 22 with the threaded rod are both provided with locking nuts, the second rod section 22 is connected with the drafting extension screw 3, namely, both ends of the second rod section 22 are both provided with threads, the threads at one end are used for assisting in driving the extension of the external skeletal fixation frame rod 2, and the threads at the other end are used for connecting the first rod section 21; through rotating first pole section 21 and second pole section 22 relatively, all be connected with intraosseous implantation half needle 1 on first pole section 21 and the second pole section 22, after intraosseous implantation half needle 1 on first pole section 21 and the second pole section 22 reached predetermined contained angle, lock nut 4 of first pole section 21 and second pole section 22 respectively.
The locking nut 4 can be arranged outside the end surface of the external bone fixing frame rod 2 and can also extend into the threaded hole of the external bone fixing frame rod 2, so that the external bone fixing frame rod 2 and the extension rod 3 can be locked relatively.
The length of the long hole in the first rod section 21 is 1/3-1/2 of the length of the long hole in the external skeletal fixation rod 2.
The threaded rod is an external thread rod or an internal thread rod, and correspondingly, the first rod section 21 and the second rod section 22 are provided with internal threads or external threads to be connected with the threaded rod.
Of course, in the implementation process, the two ends of the extension screw 3 can be connected with the external fixator frame rod 2 and the first rod section 21, so that the external fixator frame is suitable for the injury with short length.
As another optional embodiment of multi-angle fixation, a rotatable connecting column is arranged on the clamping block, one end of the rotatable connecting column is fastened with the clamping block 33 through a locking nut, the other end of the rotatable connecting column is provided with a through hole for connecting the half-needle 1 implanted in the bone, and a fastening screw is arranged at the through hole.
As an optional embodiment of multi-angle fixation, the distance between the far-end hole and the near-end hole is 10mm respectively from the edge of the strip hole, 3 semi-needles for intraosseous implantation 1 are arranged in one strip hole, combination holes matched with the semi-needles for intraosseous implantation 1 are arranged in the strip hole, the axes of the combination holes at two ends of the strip hole and the axis of the combination hole in the middle are provided with included angles, the middle hole is perpendicular to the fixed rod, the axis of the middle hole is parallel to the central plane of the rod 2 for extraosseous fixation, internal threads are arranged in the combination holes, the combination between the semi-needles for intraosseous implantation 1 and the combination holes of the strip hole is connected with the threads at the tail end of the semi-needles for intraosseous implantation 1 through the internal threads of.
One or two fastening nuts are arranged at the joint of the intraosseous implantation half needle 1 and the combining hole, and when the two fastening nuts are arranged, the fastening nuts are positioned at two sides of the extraosseous fixation frame rod 2; for convenience of operation, the fastening nut may be a wing nut.
The external bone fixing frame rod 2 is telescopically connected with the extension screw 3, and the intraosseous implantation half needle 1 is connected with the clamping block 33 on the external bone fixing frame rod 2.
Referring to fig. 6, in an embodiment of the locking nut 4, the first end of the locking nut 4 is provided with an external thread, the first end of the locking nut is screwed into one end of the external bone fixation frame rod 2, of course, the diameter of the first end of the locking thread 4 is larger than that of the extension rod 3, the locking nut 4 is provided with a thread through hole, and the extension rod 3 passes through the thread through hole and then extends into the thread hole of the external bone fixation frame rod 2.
Referring to fig. 2, it is a matter of course that the locking nut 4 may be disposed at the end surface of the external skeletal fixation rod 2 using a general nut.
As an alternative embodiment, the external fixation frame rods 2 are rod-shaped carbon fiber structures with equal length, the proximal ends of the external fixation frame rods 2 are carbon fiber structures with long holes 23, the distal ends of the external fixation frame rods 2 are hollow structures, the distal ends of the external fixation frame rods 2 (i.e., the ends of the two external fixation frame rods 2 connected with the extension screw 3) are provided with threads, and the two external fixation frame rods 2 connected with the same extension screw 3 have opposite thread rotation directions.
The external bone fixing frame rod 2 is a carbon fiber rod, and internal threads in the carbon fiber rod and internal threads in the combination hole are metal threads.
The two ends of the drafting extension rod 3 are solid threaded rods, the middle part of the drafting extension rod is a solid prismatic structure with holes, the drafting extension rod is integrally connected with the solid threaded rods at the far and near ends, the drafting extension of the external fixing frame can be realized by an L-shaped spanner through the anticlockwise rotation of nuts with the hole structures, and the extension of the bone fracture ends can be realized through half-pins; the clockwise rotation realizes the shortening of external fixation frame, through half needle, realizes the pressurization between the fractured bone end.
In order to facilitate the operation, a handle for assisting the twisting is arranged in the middle of the drafting extension rod 3.
Referring to fig. 7, the semi-needle for intraosseous implantation 1 is provided with a groove and an MOF coating on the surface of the percutaneous part, wherein the groove width W of the groove is 80 +/-5 μm, the ridge width L of the groove is 60 +/-5 μm, and the groove depth H of the groove is 10 μm; the MOF coating specifically comprises: constructing a hybrid coating of magnesium/zinc metal organic framework Mg/Zn-MOF74 on an alkali heat treated titanium (AT) surface; the thickness of the MOF coating was 8.5. + -. 1.5. mu.m.
Referring to fig. 10, the overall length of the external fixator is L1Is 350mm, the diameter of the external bone fixing frame rod 2 is D1Is 16mm, and the length of 2 rods of the external bone fixing frame rod is L2Is 170mm, and the hollow structure (namely the strip hole) of the carbon fiber rod is long L3Is 110 +/-5 mm and has a hollow diameter D24.5mm, total length L of the traction pressure rod460mm, 25mm length of the single-side traction and pressurization parts at the two sides, and the diameter D of the traction and pressurization rod connected with a rotary bolt with the middle length of 10mm into a whole36mm, the maximum length of both sides traction and pressurization is 50mm, the near end traction and pressurization part is connected with the forward rotating screw thread at the far end of the near end bone external fixation frame rod 2, and the far end traction and pressurization part is connected with the far end external fixation frame rodThe reverse rotation threads at the near end of the fixed frame rod are connected; design 3 departments and fixed half needle combination hole in the rectangular hole of outer fixed hack lever, the interval that 3 departments combined the hole is 45mm, wherein the distal end, near-end hole are 10mm apart from hollow out construction (being rectangular hole) edge respectively wherein be close to the end hole and be 15 degrees angles with the dead lever outside, the centre hole is perpendicular with the dead lever, distal end hole and dead lever are inside to become 15 degrees angles, half needle and the combination between the hole of fretwork part combine, through the thread fixed connection who implants half needle 1 tail end in the embedded metal screw thread and the bone on combining the hole.
Claims (10)
1. A simple single-side external fixation frame with multi-angle fixation and adjustable length in wartime is characterized by comprising an intraosseous implantation half needle (1), an extraosseous fixation frame rod (2) and a drafting extension screw (3), wherein two ends of the drafting extension screw (3) are in threaded connection with the extraosseous fixation frame rod (2); the outer fixing frame rod (2) is provided with strip holes (23) along the length direction, a plurality of semi-needles (1) for intrabony implantation are connected with the outer fixing frame rod (2) at the strip holes (23), the included angle alpha between at least two semi-needles (1) for intrabony implantation is 0-30 degrees, and the included angle is positioned in the transverse section of the outer fixing frame rod (2).
2. The simple single-sided external fixator in wartime with multi-angle fixation and adjustable length as claimed in claim 1, wherein the extension screw (3) is provided with external threads, one end of the external fixator frame rod (2) connected with the extension screw (3) is provided with a threaded hole along the axial direction, and the threads of the threaded hole are matched with the external threads.
3. The simple single-sided external fixator in wartime with multi-angle fixation and adjustable length as claimed in claim 1, wherein the joint of the external fixator rod (2) and the extension screw (3) is provided with a lock nut.
4. The simple single-side external fixator in wartime according to claim 1, which is multi-angle fixed and adjustable in length, wherein a driving part is arranged in the middle of the extension screw (3), the driving part is of a prism or cylinder structure, and a plurality of blind holes (5) are formed in the driving part along the circumferential direction.
5. The simple single-sided external fixator in wartime with multi-angle fixation and adjustable length as claimed in claim 1, wherein the semi-needle (1) for intraosseous implantation is connected with the rod (2) for extraosseous fixator through a threaded clamp; the thread clamp comprises a bolt (31), a nut (32) and a clamping block (33), a through hole is formed in the clamping block (33), the bolt (31) penetrates through the through hole formed in the clamping block, the bolt (31) is connected with the nut (32), the bolt (31) penetrates through a long hole (23) of the external bone fixing frame rod (2), a groove is formed in the surface, facing the external bone fixing frame rod (2), of the clamping block (33), the groove is used for containing a semi-needle (1) implanted into a bone, and an anti-skidding structure is arranged on the surface of the groove.
6. The simple one-sided external fixator in wartime with multi-angle fixation and adjustable length as claimed in claim 1, wherein the semi-needle (1) for intraosseous implantation obliquely passes through the strip hole (23) on the external fixator frame rod (2), three combining holes are arranged in the strip hole (23), the combining holes are provided with internal threads, an included angle is arranged between two combining holes far away from each other in the same strip hole (23), the semi-needle (1) for intraosseous implantation is in threaded connection with the combining holes, and a fastening nut is arranged at the joint of the semi-needle (1) for intraosseous implantation and the combining holes.
7. The simple single-sided external fixator in wartime of claim 1, which is characterized in that the external fixator rod (2) is divided into at least two segments, a first rod segment (21) and a second rod segment (22), and the first rod segment (21) and the second rod segment (22) are connected through a threaded rod; the joints of the first rod section (21) and the second rod section (22) and the threaded rod are both provided with locking nuts, and the second rod section (22) is connected with the drafting extension screw (3).
8. The simple single-sided external multi-angle fixed length adjustable wartime holder as claimed in claim 1, wherein the total length L of the external holder is L1Is 350mm, and the rod length L of the external bone fixing frame rod (2)2Are all 170mm, and the length of the long holes (23) is 110mm; total length L of traction pressure bar460mm, and the maximum traction and compression length is 50 mm.
9. The simple one-sided external fixator in wartime according to claim 1, wherein the semi-needle (1) for intraosseous implantation is provided with a groove and an MOF coating on the surface of the skin part, the groove has a width W of 80 ± 5 μm, a ridge width L of 60 ± 5 μm, and a groove depth H of 10 μm; the MOF coating specifically comprises: constructing a hybrid coating Mg/Zn-MOF74 of a magnesium/zinc metal organic framework on the surface of the titanium subjected to alkali heat treatment; the thickness of the MOF coating was 8.5. + -. 1.5. mu.m.
10. The simple single-sided external fixator in wartime of claim 1, which is multi-angle fixed and adjustable in length, wherein the external fixator bars (2) are carbon fiber bars or titanium alloy bars.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038997.XA CN112741676A (en) | 2021-01-12 | 2021-01-12 | Simple single-side external fixing frame with multi-angle fixation and adjustable length in wartime |
| PCT/CN2021/087241 WO2022151606A1 (en) | 2021-01-12 | 2021-04-14 | Multi-angle-fixing and length-adjustable wartime simple unilateral external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038997.XA CN112741676A (en) | 2021-01-12 | 2021-01-12 | Simple single-side external fixing frame with multi-angle fixation and adjustable length in wartime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112741676A true CN112741676A (en) | 2021-05-04 |
Family
ID=75651004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110038997.XA Pending CN112741676A (en) | 2021-01-12 | 2021-01-12 | Simple single-side external fixing frame with multi-angle fixation and adjustable length in wartime |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112741676A (en) |
| WO (1) | WO2022151606A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308863A (en) * | 1979-10-18 | 1982-01-05 | Ace Orthopedic Manufacturing, Inc. | External fixation device |
| US4475546A (en) * | 1983-06-23 | 1984-10-09 | Patton Stephen M | External fixation apparatus |
| US4895141A (en) * | 1984-04-26 | 1990-01-23 | Harrington Arthritis Research Center | Unilateral external fixation device |
| CN2555787Y (en) * | 2002-08-26 | 2003-06-18 | 赵建军 | Simple external fixation support of fracture |
| US9161790B2 (en) * | 2012-06-01 | 2015-10-20 | Clarkson University | Adjustable length orthopedic device |
| CN202908824U (en) * | 2012-08-17 | 2013-05-01 | 刘建 | Portable external fixing frame for fracture locking |
| CN203425015U (en) * | 2013-09-06 | 2014-02-12 | 江苏广济医疗科技有限公司 | Rapid-drawing extension rod |
| CN108635028B (en) * | 2018-04-13 | 2023-06-20 | 中国人民解放军陆军军医大学 | Temporary external fixing support for mandible in war time or field environment |
| CN109045353B (en) * | 2018-09-29 | 2020-09-22 | 重庆大学 | Preparation method of zinc/magnesium composite MOF coating mediated antibacterial/anti-inflammatory/bone-promoting type titanium-based implant material |
| CN112076348B (en) * | 2020-07-22 | 2021-09-24 | 浙江大学 | Medical metal surface anti-infection and osseointegration promotion coating, preparation method and application |
-
2021
- 2021-01-12 CN CN202110038997.XA patent/CN112741676A/en active Pending
- 2021-04-14 WO PCT/CN2021/087241 patent/WO2022151606A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2022151606A1 (en) | 2022-07-21 |
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