CN107811688B - Plate-type external fixing support for fracture wound treatment - Google Patents
Plate-type external fixing support for fracture wound treatment Download PDFInfo
- Publication number
- CN107811688B CN107811688B CN201711244745.2A CN201711244745A CN107811688B CN 107811688 B CN107811688 B CN 107811688B CN 201711244745 A CN201711244745 A CN 201711244745A CN 107811688 B CN107811688 B CN 107811688B
- Authority
- CN
- China
- Prior art keywords
- locking
- adjusting
- ring
- module
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 208000027418 Wounds and injury Diseases 0.000 title description 11
- 206010052428 Wound Diseases 0.000 title description 6
- 208000014674 injury Diseases 0.000 claims abstract description 12
- 230000008733 trauma Effects 0.000 claims abstract description 7
- 238000007667 floating Methods 0.000 claims description 82
- 230000007704 transition Effects 0.000 claims description 18
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 8
- 229920002530 polyetherether ketone Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 description 7
- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 210000005036 nerve Anatomy 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—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
- A61B17/66—Alignment, compression or distraction mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00902—Material properties transparent or translucent
- A61B2017/00911—Material properties transparent or translucent for fields applied by a magnetic resonance imaging system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00902—Material properties transparent or translucent
- A61B2017/00915—Material properties transparent or translucent for radioactive radiation
- A61B2017/0092—Material properties transparent or translucent for radioactive radiation for X-rays
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a plate-type external fixing bracket for fracture trauma treatment, which comprises a locking module, a locking plate and a fixing plate, wherein the locking module comprises a locking ring, a spherical locking clamp and a base; the first plane of the base is provided with a counter bore, the bottom surface of the counter bore and a second conical ring surface through hole; the outer surface of the spherical locking clamp comprises a spherical surface and two mutually parallel circular planes, a locking needle through hole is formed between the circle centers of the two circular planes, a plurality of vertical grooves are formed in the vertical direction of the two circular planes from the inner surface of the locking needle through hole, and the vertical grooves formed in the two circular planes are mutually staggered by a certain angle to form an elastic contractible structure; the spherical locking clamp is placed in a counter bore of the base, the locking pin is inserted into the through hole of the locking pin, and the locking ring is screwed into the counter bore. The invention is realized by changing the integral knot of the combined external fixing bracket into the corresponding functional module, thereby effectively reducing the difficulty of clinical operation.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a plate-type external fixing bracket for fracture trauma treatment.
Background
In the process of treating fracture wounds, an operation treatment mode of internal fixation reduction and external fixation reduction is mostly adopted, and the internal fixation reduction is suitable for the treatment of closed wounds combined with fracture; external fixation reduction is often suitable for the treatment of open trauma complicated with fractures. External fixation reduction surgery requires the use of an external fixation stent.
The structure types of the existing external fixing support mainly comprise an integral external fixing support, a ring frame type external fixing support and a combined external fixing support.
The integral external fixing support is of an integral structure as the name implies, and has the advantage of higher integral strength. The disadvantage is that the overall structure of such external fixation brackets lacks flexibility, is single in function and is cumbersome. During surgical treatment, it is sometimes difficult to avoid important blood vessels and nerves, often causing difficulties in surgical treatment or secondary injury to the patient, and difficult to achieve precision in the reduction of relatively complex fracture trauma. Such external fixation brackets are currently less useful.
The integral external fixing bracket is improved and optimized on the basis of the integral external fixing bracket, and has the advantages of higher integral strength and certain flexibility of the structure; the disadvantage is that the whole structure of the external fixing bracket is still heavy, the adjustable range of the external fixing bracket is smaller, and the functions are few; in the surgical treatment process, although the device has a certain flexibility, the device still cannot effectively avoid important blood vessels and nerves due to a smaller adjustable range, so that the surgical treatment is difficult, the secondary injury of a patient cannot be effectively avoided, and the device cannot be accurate in the complex fracture wound reduction.
The ring frame type external fixing support is an external fixing support which adopts a round semi-ring frame, a full-ring frame or a horseshoe-shaped ring frame as a main structure and is assisted by a straight connecting rod. The external fixing bracket has the advantages of higher flexibility, the overall strength is higher. The disadvantage is that the structure of such an external fixation bracket is complex, and the overall size is large and heavy. In the operation treatment process, the requirements are strict, the requirements on the installation technology and the installation precision are high, the fracture reduction process in the operation is complex and tedious, and the functions are few. Such external fixation stents have been replaced by combined external fixation stents, and are rarely used in clinical practice.
The combined external fixing support is a novel external fixing support which is used in a large amount under the background of rapid development of modern industry and modern material technology, and the application of high-performance, high-strength and light metal materials, composite materials and high polymer materials can lead the external fixing support to reduce the weight, reduce the size and improve the performance. The device has the advantages of simple and convenient operation and installation, flexible adjustment, light weight, good adaptability, multiple functions, simple fracture reduction process in operation and good avoidance of important blood vessels and nerves. The disadvantage is that the combined external fixation bracket is relatively large, although the overall size is reduced; secondly, the combined external fixing support takes a single component as a combined unit, the number of required components is large, and different functional components are required to be used for realizing different functions, so that the composition and the use of the combined external fixing support are complex; in addition, patients face daily activities difficulty in the postoperative recovery period, wearing clothes in winter is difficult, and the patients are difficult to keep warm, and the patients are bothered by adding much life.
Because of various disadvantages of the integral external fixation support, the ring frame type external fixation support and the combined external fixation support, the clinical application of the external fixation support is hindered. What is needed is a targeted improvement of an external fixing support, and on the basis of flexibility, light weight, easy use and good adaptability of a combined external fixing support, the advantages of high strength and simple structure of the integrated external fixing support are combined, and the external fixing support with better use performance is designed and developed.
Disclosure of Invention
The invention aims to overcome the defects and provide the plate-type external fixing bracket for treating fracture wounds.
The invention discloses a plate-type external fixing bracket for fracture trauma treatment, which comprises a locking module, wherein the locking module comprises a locking ring, a spherical locking clamp and a base, the outer ring surface of the locking ring is provided with first external threads, the inner ring surface of the locking ring comprises a first conical ring surface, the first conical ring surface is intersected with a first annular end surface at one end of the locking ring, and a groove-shaped opening for screwing up the threads is formed in the first annular end surface;
the base comprises a first plane and a second plane which are parallel to each other, the first plane is provided with a counter bore, the inner wall of the counter bore is provided with a first internal thread matched with the first external thread, and a second conical annular surface through hole is formed between the bottom surface of the counter bore and the second plane;
the outer surface of the spherical locking clamp comprises a spherical surface and two mutually parallel circular planes, a needle locking through hole is formed between circle centers of the two circular planes, a plurality of vertical grooves are formed in the vertical direction of the two circular planes from the inner surface of the needle locking through hole, the vertical grooves start to be directly communicated with the spherical surface from the inner surface of the needle locking through hole, a plurality of vertical groove bottoms formed in one circular plane are at a certain distance from the other circular plane, a plurality of vertical groove bottoms formed in the other circular plane are at a certain distance from the one circular plane, and the vertical grooves formed in the two circular planes are mutually staggered at a certain angle to form an elastic contractible structure;
the spherical locking clamp is placed in a counter bore of the base, and a locking ring is screwed into the counter bore.
Preferably, the inner surface of the spherical locking clip is designed with protruding teeth.
Preferably, the cross grooves formed in the two circular planes of the spherical locking clamp are offset from each other by 45 degrees.
Specifically, the locking module comprises two locking rings, two spherical locking clamps and two bases, wherein a certain included angle is formed between the two bases and the two bases are symmetrically arranged relative to an angular bisector of the included angle, and the two bases are connected through an arc transition base body.
The device comprises a fixed connecting rod, a locking convex ring and a locking connecting rod, wherein the fixed connecting rod is fixed in length, two ends of the fixed connecting rod are square, and the middle part of the fixed connecting rod is provided with the locking convex ring; the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with the two ends of the fixed connecting rod; locking ring grooves are arranged at openings at two ends of the square connecting through hole and are matched with the locking convex rings of the fixed connecting rod; the locking module comprises two locking ring grooves and locking convex rings which are respectively connected with the fixed connecting rod into a whole.
Preferably, the floating adjusting module comprises a connecting rod and a locking spiral ring, wherein one end of the connecting rod is a square rod, the middle part of the connecting rod is provided with a locking convex ring, the other end of the connecting rod is provided with a ball head, the ball head is externally sleeved with the locking spiral ring, one end of the inner part of the locking spiral ring is provided with a conical locking ring surface, and the other end of the locking spiral ring is provided with a second internal thread;
the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with one end of the connecting rod; locking ring grooves are arranged at the openings (outer edges) at the two ends of the square connecting through hole and are matched and locked with the locking convex rings of the connecting rod;
the floating adjusting and connecting module comprises two floating adjusting seats, the floating adjusting seats are cylindrical, one end of each floating adjusting seat is provided with a spherical concave surface, the spherical concave surface is matched with a ball head on a connecting rod, the two floating adjusting seats are combined into a whole at the other end, and the surface of each cylinder is provided with second external threads which are matched with second internal threads of the locking spiral ring; the connecting rod is used for connecting the floating adjusting module and the locking module;
the locking modules comprise two locking modules which are respectively connected with the floating adjusting connecting module through the floating adjusting module into a whole.
The floating adjusting module comprises a connecting rod and a locking spiral ring, wherein one end of the connecting rod is a square rod, a locking convex ring is arranged in the middle of the connecting rod, a ball head is arranged at the other end of the connecting rod, the locking spiral ring is sleeved outside the ball head, a conical locking ring surface is arranged at one end of the inner part of the locking spiral ring, and a second internal thread is arranged at the other end of the locking spiral ring;
the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with one end of the connecting rod; locking ring grooves are arranged at openings at two ends of the square connecting through hole and are matched and locked with the locking convex rings of the connecting rod;
the connecting rod is inserted into the square connecting through hole and used for connecting the floating adjusting module and the locking module;
the device also comprises an extension adjusting module, wherein the extension adjusting module comprises two floating adjusting seats, an extension adjusting screw rod, an adjusting nut, a locking nut and an extension adjusting loop bar;
the two floating adjusting seats are respectively arranged at one ends of the extension adjusting screw rod and the extension adjusting sleeve rod, the floating adjusting seat is a cylinder, one end of the floating adjusting seat is provided with a spherical concave surface, the spherical concave surface is matched with a ball head on the connecting rod, and the surface of the cylinder is provided with a second external thread which is matched with a second internal thread of the locking spiral ring; the other end of one floating adjusting seat is connected with one end of the extension adjusting threaded rod into a whole, and the other end of the other floating adjusting seat is connected with one end of the extension adjusting sleeve rod into a whole; the other ends of the extension adjusting screw rod and the extension adjusting sleeve rod are connected together through a locking nut and an adjusting nut;
the extension adjusting sleeve rod is of a hollow tubular structure, one end of the extension adjusting sleeve rod is provided with an annular clamping groove, and a plurality of elastic deformation grooves are formed in the clamping groove along the axial direction and used for clamping the adjusting nut so that the adjusting nut and the extension adjusting sleeve rod are connected into a whole; the other end is connected with the floating adjusting seat into a whole;
one end of the extension adjusting screw rod is connected with the floating adjusting seat into a whole, and the other end of the extension adjusting screw rod is provided with a third external thread for extension adjustment;
the adjusting nut is of an annular structure, one end of the inner surface is provided with a third internal thread, the third internal thread is matched and connected with the extension adjusting screw rod, the other end of the adjusting nut is provided with an annular buckle matched with the buckle groove and used for being connected to one end of the extension adjusting sleeve rod, so that the adjusting nut and the extension adjusting sleeve rod are integrated and can rotate freely relative to the extension adjusting sleeve rod;
the locking nut is of an annular structure, and a fourth internal thread is arranged on the inner surface of the locking nut and matched with the third external thread for extension adjustment, so that the locking nut is locked;
the locking modules comprise two locking modules which are respectively connected with the extension adjusting module into a whole through the floating adjusting module.
Specifically, each structural module is fabricated using a polyetheretherketone material.
The bone needle locking structure is simplified, and the spherical locking module mode of the spherical locking clamp is adopted, so that the bone needle locking structure is convenient for flexibly adjusting the positioning direction, is beneficial to effectively avoiding important blood vessels and nerves, prevents secondary injury to a patient to the greatest extent, and ensures reliable locking of the bone needle;
the plate-type external fixing support realizes multifunctional application, is realized by connecting the components of the combined external fixing support into an integrated structure, and is changed into the implementation by using corresponding functional modules, so that the difficulty of clinical operation is effectively reduced, the convenience of product operation is improved, important blood vessels and nerves can be effectively avoided in the operation process, and secondary injury to patients is avoided;
the novel spherical locking module and the floating adjusting module adopted by the invention simplify the structure of the external fixing support, realize multi-dimensional adjustment of the spherical surface range by adopting a plurality of proper spherical connection structures, achieve the high flexibility of the integral positioning of the external fixing support in a state without accurate positioning, improve the adaptability, usability and reliability of the external fixing support, reduce auxiliary surgical instruments, greatly reduce the surgical time, reduce the bleeding in surgery and reduce the infection risk;
the module structure changes the component combination mode of the combined type external fixing support, becomes a plate type external fixing support, greatly reduces the number of components of the external fixing support, is convenient for clinical application, simplifies the production and manufacturing process and reduces the production and manufacturing cost;
the simple and reliable integral structure of the invention greatly reduces the height of the external fixing support, so that the main body of the external fixing support is close to the skin as much as possible, the height of the external fixing support after installation is greatly reduced, the trouble of difficult daily activities of a patient in the postoperative recovery period is reduced, and the invention is convenient for the patient to wear clothes and keep warm in winter;
the polyether-ether-ketone (PEEK) material is used for manufacturing each structural module, the problem that the shielding of the examination and the nuclear magnetic resonance examination in and after the operation can not be influenced due to the fact that the original metal external fixing support cannot penetrate X-rays in the orthopedic operation is solved by using the new material and the new technology, and the weight of the external fixing support can be effectively reduced by using the polyether-ether-ketone (PEEK) material on the premise that the performance, the strength and the rigidity of the external fixing support are guaranteed, the processing efficiency and the yield of products are improved, the cost is reduced, and the pressure of patients or medical insurance expenses is reduced.
Drawings
FIG. 1 is a front view of a locking module of the present invention;
FIG. 2 is a cross-sectional view of FIGS. 1 A-A;
FIG. 3 is a front view of the ball lock clip;
FIG. 4 is a cross-sectional view of FIG. 3B-B;
FIG. 5 is a cross-sectional view of FIG. 3C-C;
FIG. 6 is a front view of a locking module according to the second embodiment;
FIG. 7 is a D-D sectional view of FIG. 6;
FIG. 8 is an E-direction view of FIG. 6;
fig. 9 is a front view of a plate-type external fixation bracket of the third embodiment;
fig. 10 is a front view of a plate-type external fixing bracket and an axial sectional structure schematic view of a floating adjustment module according to a fourth embodiment;
fig. 11 is a front view of a plate-type external fixing bracket and an axial sectional structure schematic diagram of a floating adjustment module and an extension adjustment module according to the fifth embodiment.
In the figure:
01-locking module (1-lock ring; 11-first external thread; 12-slot opening; 13-first conical torus; 13 a-first annular end face; 13 b-first torus;
2-a spherical locking clip; 21-a spherical surface; 22-circle plane; 221-a lock pin through hole; 23-cross grooves; 25-triangular ring teeth;
3-a base; 31 A-A first plane; 31 b-a second plane; 311-counter bores are symmetrically formed on two sides; 31-first internal threads; 32-a second conical annulus (through hole); 33-square connecting through holes; 34-locking ring grooves; 303-arc transition seat body);
04-floating adjusting module (4-connecting rod, 41-square connecting rod, 42-locking convex ring, 43-ball head;
5-locking a spiro ring; 51-conical locking ring surface, 52-second internal thread);
010-extension adjustment module (10-floating adjustment seat; 10 a-spherical concave; 10 b-second external thread;
9-extending the adjusting screw; 91-third external threads;
8-locking nuts; 81-fourth internal threads;
7-adjusting the nut; 71-a third internal thread; 72-annular snap;
6-extending an adjusting sleeve rod; 61-a snap groove; 62-elastically deformable groove);
202-a floating adjustment coupling module (comprising two floating adjustment seats 10);
101-a fixed coupling module (fixed length coupling rod 4);
the cross grooves formed by the beta-two circular planes are staggered with each other by a certain angle value;
the theta-two bases are connected into a whole to form a certain included angle value.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Embodiment one:
the plate-type external fixing support for fracture trauma treatment comprises a locking module, wherein the locking module comprises a locking ring, a spherical locking clamp and a base, the locking ring is circular, a first external thread is arranged on the surface of an outer ring (outer diameter) of the locking ring, the inner ring surface of the locking ring comprises a first conical ring surface, the plate-type external fixing support further comprises a first ring surface connected to the lower part of the first conical ring surface, the first ring surface is convenient for processing the first external thread, the first conical ring surface is intersected with a first annular end face of one end of the locking ring, a groove-shaped opening for screwing up the thread is formed in the first annular end face, and a special tool is arranged on the first ring end face for screwing up;
the base comprises a first plane and a second plane which are parallel to each other, the first plane is provided with a counter bore, the inner wall of the counter bore is provided with a first internal thread matched with the first external thread, a second conical ring surface through hole is formed between the bottom surface of the counter bore and the second plane, namely, the internal ring surface of the through hole is a second conical ring surface, and after the first external thread of the locking ring is screwed into the first internal thread of the base, the second conical ring surface is vertically symmetrical with the first conical ring surface;
as shown in fig. 3, 4 and 5, the outer surface of the spherical locking clip includes a spherical surface and two parallel circular planes (in this embodiment, a first circular plane and a second circular plane), a locking needle through hole (circular) is formed between the centers of the two circular planes, a plurality of vertical grooves are formed along the vertical direction of the two circular planes from the inner surface of the locking needle through hole, the bottoms of the plurality of vertical grooves formed on one circular plane are at a certain distance from the other circular plane, the bottoms of the plurality of vertical grooves formed on the other circular plane are at a certain distance from the one circular plane, and the vertical grooves formed on the two circular planes are offset from each other by a certain angle beta, so as to form an elastic contractible structure; the vertical groove is directly communicated with the spherical surface of the spherical locking clamp from the inner surface of the locking needle through hole; in this embodiment, four cross grooves are formed, and the cross groove bottom formed along the vertical direction of the first circular plane is at a certain distance from the second circular plane, i.e. is not formed along the vertical direction, and the cross groove bottom formed along the vertical direction of the second circular plane is at a certain distance from the first circular plane, and the cross grooves formed in the two circular planes are mutually staggered by 45 degrees;
the spherical locking clamp is placed in a counter bore of the base, and a locking ring is screwed into the counter bore. After the lock needle is inserted, the angle direction of the lock needle is flexibly adjusted, and the lock ring is screwed tightly, so that the lock needle is clamped.
When the locking device is used, the spherical locking clamp is placed in the counter bore of the base, then the locking ring is screwed in, the locking needle is inserted, the tightening tool is used for inserting the groove-shaped opening, the locking ring is screwed down, so that the spherical locking clamp contracts along the first conical ring surface and the second conical ring surface to clamp the locking needle, flexible positioning of the bone needle is facilitated, important blood vessels and nerves are avoided effectively, secondary injury to a patient is prevented to the maximum extent, and meanwhile locking reliability of the bone needle is guaranteed. The spherical locking clamp is automatically positioned through the conical ring surface during assembly.
The inner surface of the spherical locking clamp is provided with protruding teeth, namely a plurality of circles of annular teeth with triangular cross sections are arranged on the inner surface of the spherical locking clamp, so that the locking force is enhanced.
Embodiment two:
as shown in fig. 6, 7 and 8, the plate-type external fixing support of the present invention is different from the first embodiment in that the locking module includes two locking rings, two spherical locking clips and two bases, the two bases are connected together to form a certain included angle θ, in this embodiment 120 ° and symmetrically arranged with a bisector of 120 ° as a symmetry axis, and arc transitions are formed between the included angle lines, and the arc transition section is called an arc transition seat.
In the embodiment, the arc transition seat body is provided with a bulge, a square connecting through hole is axially formed in the bulge along the counter bore of the base, round corners are chamfered at four corners of the square connecting through hole, and locking ring grooves are formed in two ends of the square connecting through hole.
The structure of the lock ring, the spherical lock clamp and the base is the same as that of the first embodiment.
Embodiment III:
as shown in fig. 9 and 10, the plate-type external fixing bracket of the present invention is different from the second embodiment in that it further includes a fixing coupling module, the fixed connection module is a connection rod with fixed length, the two ends of the connecting rod are square (round corners are rounded) and the middle part of the connecting rod (between the connecting rod and the ball head) is provided with a locking convex ring; the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with two ends of the connecting rod; the two ends of the square connecting through hole are provided with locking ring grooves (outer edges) which are matched and locked with the locking convex rings of the connecting rod, and one side of the locking ring groove of the square connecting through hole, which faces the opening of the hole, is provided with a plurality of radial protrusions for locking and fixing the connecting rod; the locking modules comprise two locking convex rings which are respectively locked through the locking ring grooves and are connected with the connecting rod to form an integral plate-type external fixing support, when the locking device is used, the connecting rod with square round corners keeps the parallelism of the two locking modules, the connecting rod is optional in various lengths according to the condition of patients, and once the length is selected, the length of the connecting rod is not adjustable.
The rest is the same as in the second embodiment.
Embodiment four:
as shown in fig. 11, the plate-type external fixing support of the invention is different from the second embodiment in that the plate-type external fixing support of the invention also comprises a floating adjusting module, wherein the floating adjusting module comprises a connecting rod and a locking spiral ring, one end of the connecting rod is a square end (round corners are chamfered), the middle part of the connecting rod is provided with a locking convex ring, namely a circular bulge, the other end of the connecting rod is provided with a ball head, the ball head is externally sleeved with the locking spiral ring, one end of the inner part of the locking spiral ring is provided with a conical locking ring surface, and the other end of the locking spiral ring is provided with a second internal thread;
a square connecting through hole is formed at the bulge of the arc transition seat body part of the locking module and is matched with one end (square end) of the connecting rod; the two ends of the square connecting through hole are provided with locking ring grooves (outer edges) which are matched with the locking convex rings of the connecting rod, and one side of the locking ring groove of the square connecting through hole, which faces the opening of the hole, is provided with a plurality of radial protrusions for locking and fixing the connecting rod;
the floating adjusting and connecting module comprises two floating adjusting seats, wherein the floating adjusting seats are cylindrical, one end of each floating adjusting seat is provided with a spherical concave surface, the spherical concave surface is matched with a ball head on a connecting rod, the two floating adjusting seats are combined into a whole at the other end, the two floating adjusting seats are integrally processed into a whole in the embodiment, and the cylindrical surface is provided with second external threads which are matched with second internal threads of the locking spiral ring; the connecting rod is used for connecting the floating adjusting module and the locking module, when the connecting rod is used, the connecting rod has various lengths which are selectable according to the condition of a patient, and once the length is selected, the length of the connecting rod is not adjustable.
The locking modules comprise two locking modules which are respectively connected with the floating adjusting connecting module through the floating adjusting module into a whole. Specifically, the two locking modules are respectively connected with the floating adjusting module, the connecting rod penetrates into the locking spiral ring, the ball head is tightly attached to the conical locking ring surface, the square end of the connecting rod is inserted into the square connecting through hole of the circular arc transition seat body of the locking module, and the locking convex ring in the middle is matched with the locking ring groove for locking; and then the locking spiral ring of one floating adjusting module is in threaded connection with one end of the floating adjusting seat of the integrally-machined floating adjusting connecting module, the locking spiral ring of the other floating adjusting module is in threaded connection with the other end of the floating adjusting seat, and finally the two locking modules are connected to form an integral plate-type external fixing support. The multi-dimensional adjustment of the sphere range is realized by four proper sphere connection structures, the high flexibility of the whole positioning of the external fixing support is achieved in a state without accurate positioning, the adaptability, usability and reliability of the external fixing support are improved, auxiliary surgical instruments are reduced, the surgical time is greatly reduced, and the bleeding and infection risk in the operation are reduced.
The rest is the same as in the second embodiment.
Fifth embodiment:
as shown in fig. 12, the plate-type external fixing support of the present invention is different from the second embodiment in that the plate-type external fixing support further comprises a floating adjustment module, wherein the floating adjustment module comprises a connecting rod and a locking spiral ring, one end of the connecting rod is a square rod, a locking convex ring is arranged in the middle part (between the connecting rod with a square round angle and a ball head), the other end of the connecting rod is provided with a ball head, the ball head is externally sleeved with the locking spiral ring, one end of the interior of the locking spiral ring is provided with a conical locking ring surface, and the other end of the locking spiral ring is provided with a second internal thread;
the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with one end of the connecting rod; the two ends of the square connecting through hole are provided with locking ring grooves (outer edges) which are matched and locked with the locking convex rings of the connecting rod, and one side of the locking ring groove of the square connecting through hole, which faces the opening of the hole, is provided with a plurality of radial protrusions for locking and fixing the connecting rod;
the connecting rod is inserted into the square connecting through hole and used for connecting the floating adjusting module and the locking module;
the device also comprises an extension adjusting module, wherein the extension adjusting module comprises two floating adjusting seats, an extension adjusting screw rod, an adjusting nut, a locking nut and an extension adjusting sleeve rod which are positioned at two ends, and is used for connecting the floating adjusting module and the locking module, and the length of the extension adjusting module is adjustable;
the two floating adjusting seats are respectively arranged at one ends of the extension adjusting screw rod and the extension adjusting sleeve rod, the floating adjusting seat is a cylinder, one end of the floating adjusting seat is provided with a spherical concave surface, the spherical concave surface is matched with a ball head on the connecting rod, and the surface of the cylinder is provided with a second external thread which is matched with a second internal thread of the locking spiral ring; one end of the extension adjusting threaded rod is connected with one end of the extension adjusting sleeve rod, and the other end of the extension adjusting threaded rod is connected with the other end of the extension adjusting sleeve rod; the other ends of the extension adjusting screw rod and the extension adjusting sleeve rod are connected together through a locking nut and an adjusting nut;
the extension adjusting sleeve rod is of a hollow tubular structure, one end of the extension adjusting sleeve rod is provided with an annular clamping groove, and a plurality of elastic deformation grooves are formed in the clamping groove along the axial direction and used for clamping the adjusting nut to enable the adjusting nut and the extension adjusting sleeve rod to be connected into a whole, so that the extension adjusting sleeve rod is prevented from falling off; the other end is connected with the floating adjusting seat into a whole;
one end of the extension adjusting screw rod is connected with the floating adjusting seat into a whole, the other end is provided with a third external thread for extension adjustment;
the adjusting nut is of an annular structure, one end of the inner surface is provided with a third internal thread, the third internal thread is matched and connected with the extension adjusting screw rod, the other end of the adjusting nut is provided with an annular buckle matched with the buckle groove and used for being connected to one end of the extension adjusting sleeve rod, so that the adjusting nut and the extension adjusting sleeve rod are integrated and can rotate freely relative to the extension adjusting sleeve rod;
the locking nut is of an annular structure, and the inner surface of the locking nut is provided with a fourth internal thread which is matched with the third external thread for extension adjustment and is used for locking the adjusting nut;
in this embodiment, the locking modules include two locking modules, which are respectively connected to the extension adjustment module through the floating adjustment module as a whole. Specifically, the two locking modules are respectively connected with the floating adjusting module, the connecting rod penetrates into the locking spiral ring, the ball head is tightly attached to the conical locking ring surface, the square end of the connecting rod is inserted into the square connecting through hole of the circular arc transition seat body of the locking module, and the locking convex ring in the middle is matched with the locking ring groove for locking; then assembling an extension adjusting module, clamping an adjusting nut into an annular clamping groove of an extension adjusting sleeve rod, screwing the adjusting nut into an extension adjusting screw rod through a third external thread, and screwing the extension adjusting screw rod into the adjusting nut through the third external thread; finally, the extension adjusting module is connected with the two floating adjusting modules, one end of the extension adjusting sleeve rod, which is integrated with the floating adjusting seat, is screwed into the locking spiral ring of one floating adjusting module, and one end of the extension adjusting screw, which is integrated with the floating adjusting seat, is screwed into the locking spiral ring of the other floating adjusting module; finally, the two locking modules are connected to form an integral plate-type external fixing bracket. The whole length is adjustable, and the clinical application is convenient.
When the floating adjusting module is used, the locking module is in a free state and can be adjusted; when the fixed connection module is used, the two locking modules are in a parallel state.
The plate-type external fixing support in the embodiment uses polyether-ether-ketone (PEEK) materials to manufacture each structural module, solves the problem that the prior metal external fixing support cannot transmit X rays in the orthopedic operation to influence the shielding of the examination during and after the operation and the tabu of nuclear magnetic resonance examination, and reduces the weight of the external fixing support.
The rest is the same as in the second embodiment.
Claims (8)
1. The plate-type external fixing support for fracture trauma treatment is characterized by comprising a locking module, wherein the locking module comprises a locking ring, a spherical locking clamp and a base, a first external thread is arranged on the outer ring surface of the locking ring, the inner ring surface of the locking ring comprises a first conical ring surface, the first conical ring surface is intersected with a first annular end surface at one end of the locking ring, and a groove-shaped opening for screwing up the thread is formed in the first annular end surface;
the base comprises a first plane and a second plane which are parallel to each other, the first plane is provided with a counter bore, the inner wall of the counter bore is provided with a first internal thread matched with the first external thread, and a second conical annular surface through hole is formed between the bottom surface of the counter bore and the second plane;
the outer surface of the spherical locking clamp comprises a spherical surface and two mutually parallel circular planes, a needle locking through hole is formed between circle centers of the two circular planes, a plurality of vertical grooves are formed in the vertical direction of the two circular planes from the inner surface of the needle locking through hole, the vertical grooves start to be directly communicated with the spherical surface from the inner surface of the needle locking through hole, a plurality of vertical groove bottoms formed in one circular plane are at a certain distance from the other circular plane, a plurality of vertical groove bottoms formed in the other circular plane are at a certain distance from the one circular plane, and the vertical grooves formed in the two circular planes are mutually staggered at a certain angle to form an elastic contractible structure;
the spherical locking clamp is placed in a counter bore of the base, and a locking ring is screwed into the counter bore.
2. The plate-type external fixation stent of claim 1, wherein the inner surface of the spherical locking clip is designed with protruding teeth.
3. The plate type external fixing support according to claim 2, wherein the cross grooves formed in two circular planes of the spherical locking clamp are offset from each other by 45 degrees.
4. A plate-type external fixing support according to claim 3, wherein the locking module comprises two locking rings, two spherical locking clamps and two bases, a certain included angle is formed between the two bases and the two bases are symmetrically arranged relative to an angular bisector of the included angle, and the two bases are connected by an arc transition base body.
5. The plate-type external fixing support according to claim 4, further comprising a fixing and connecting module, wherein the fixing and connecting module is a fixing and connecting rod with a fixed length, two ends of the fixing and connecting rod are square, and a locking ring is arranged in the middle of the fixing and connecting rod; the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with the two ends of the fixed connecting rod; locking ring grooves are arranged at openings at two ends of the square connecting through hole and are matched with the locking convex rings of the fixed connecting rod; the locking module comprises two locking ring grooves and locking convex rings which are respectively connected with the fixed connecting rod into a whole.
6. The plate-type external fixing support according to claim 4, further comprising a floating adjusting module, wherein the floating adjusting module comprises a connecting rod and a locking spiral ring, one end of the connecting rod is a square rod, a locking convex ring is arranged in the middle of the connecting rod, a ball head is arranged at the other end of the connecting rod, the locking spiral ring is sleeved outside the ball head, a conical locking ring surface is arranged at one end of the inner part of the locking spiral ring, and a second internal thread is arranged at the other end of the locking spiral ring;
the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with one end of the connecting rod; locking ring grooves are arranged at openings at two ends of the square connecting through hole and are matched and locked with the locking convex rings of the connecting rod;
the floating adjusting and connecting module comprises two floating adjusting seats, the floating adjusting seats are cylindrical, one end of each floating adjusting seat is provided with a spherical concave surface, the spherical concave surface is matched with a ball head on a connecting rod, the two floating adjusting seats are combined into a whole at the other end, and the surface of each cylinder is provided with second external threads which are matched with second internal threads of the locking spiral ring; the connecting rod is used for connecting the floating adjusting module and the locking module;
the locking modules comprise two locking modules which are respectively connected with the floating adjusting connecting module through the floating adjusting module into a whole.
7. The plate-type external fixing support according to claim 4, further comprising a floating adjusting module, wherein the floating adjusting module comprises a connecting rod and a locking spiral ring, one end of the connecting rod is a square rod, a locking convex ring is arranged in the middle of the connecting rod, a ball head is arranged at the other end of the connecting rod, the locking spiral ring is sleeved outside the ball head, a conical locking ring surface is arranged at one end of the inner part of the locking spiral ring, and a second internal thread is arranged at the other end of the locking spiral ring;
the circular arc transition seat body part of the locking module is provided with a square connecting through hole which is matched with one end of the connecting rod; locking ring grooves are arranged at openings at two ends of the square connecting through hole and are matched and locked with the locking convex rings of the connecting rod;
the connecting rod is inserted into the square connecting through hole and used for connecting the floating adjusting module and the locking module;
the device also comprises an extension adjusting module, wherein the extension adjusting module comprises two floating adjusting seats, an extension adjusting screw rod, an adjusting nut, a locking nut and an extension adjusting loop bar;
the two floating adjusting seats are respectively arranged at one ends of the extension adjusting screw rod and the extension adjusting sleeve rod, the floating adjusting seat is a cylinder, one end of the floating adjusting seat is provided with a spherical concave surface, the spherical concave surface is matched with a ball head on the connecting rod, and the surface of the cylinder is provided with a second external thread which is matched with a second internal thread of the locking spiral ring; one end of the extension adjusting threaded rod is connected with one end of the extension adjusting sleeve rod, and the other end of the extension adjusting threaded rod is connected with the other end of the extension adjusting sleeve rod; the other ends of the extension adjusting screw rod and the extension adjusting sleeve rod are connected together through a locking nut and an adjusting nut;
the extension adjusting sleeve rod is of a hollow tubular structure, one end of the extension adjusting sleeve rod is provided with an annular clamping groove, and a plurality of elastic deformation grooves are formed in the clamping groove along the axial direction and used for clamping the adjusting nut so that the adjusting nut and the extension adjusting sleeve rod are connected into a whole; the other end is connected with the floating adjusting seat into a whole;
one end of the extension adjusting screw rod is connected with the floating adjusting seat into a whole, and the other end of the extension adjusting screw rod is provided with a third external thread for extension adjustment;
the adjusting nut is of an annular structure, one end of the inner surface is provided with a third internal thread, the third internal thread is matched and connected with the extension adjusting screw rod, the other end of the adjusting nut is provided with an annular buckle matched with the buckle groove and used for being connected to one end of the extension adjusting sleeve rod, so that the adjusting nut and the extension adjusting sleeve rod are integrated and can rotate freely relative to the extension adjusting sleeve rod;
the locking nut is of an annular structure, and a fourth internal thread is arranged on the inner surface of the locking nut and matched with the third external thread for extension adjustment, so that the locking nut is locked;
the locking modules comprise two locking modules which are respectively connected with the extension adjusting module into a whole through the floating adjusting module.
8. The plate-type external fixing support according to any one of claims 1 to 7, wherein each structural module is manufactured using a polyetheretherketone material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244745.2A CN107811688B (en) | 2017-11-30 | 2017-11-30 | Plate-type external fixing support for fracture wound treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244745.2A CN107811688B (en) | 2017-11-30 | 2017-11-30 | Plate-type external fixing support for fracture wound treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107811688A CN107811688A (en) | 2018-03-20 |
| CN107811688B true CN107811688B (en) | 2024-04-16 |
Family
ID=61606570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244745.2A Active CN107811688B (en) | 2017-11-30 | 2017-11-30 | Plate-type external fixing support for fracture wound treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107811688B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529029B (en) * | 2020-05-21 | 2024-01-23 | 上海长海医院 | Integrative external fixation support of ring around pelvis |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0707832A1 (en) * | 1994-10-12 | 1996-04-24 | Jean-Marie Hardy | External fixator |
| RU2177272C1 (en) * | 2000-06-19 | 2001-12-27 | Общество с ограниченной ответственностью Научно-производственный центр "Углеродные волокна и композиты" | Device for performing perosseous osteosynthesis |
| CN201108488Y (en) * | 2007-12-20 | 2008-09-03 | 周建明 | Articulatio carpi exterior fixing rack |
| CN101828951A (en) * | 2010-04-26 | 2010-09-15 | 奚华高 | In vitro fracture fixer |
| CN102895022A (en) * | 2012-11-01 | 2013-01-30 | 北京市富乐科技开发有限公司 | Multidirectional adjustable external radioulna fixing frame |
| CN202960717U (en) * | 2012-12-14 | 2013-06-05 | 黄智勇 | External fixing device for fractured clavicle |
| EP2613074A1 (en) * | 2010-09-01 | 2013-07-10 | Lap Shun Manufacture Co. Ltd. | Tripod head locking device, adjusting device and holder panel device |
| US8574232B1 (en) * | 2012-11-13 | 2013-11-05 | Texas Scottish Hospital for Children | External fixation connection rod for rapid and gradual adjustment |
| CN105596067A (en) * | 2016-03-25 | 2016-05-25 | 郭谦 | Outer fixing bracket for wrist joint |
| CN106943185A (en) * | 2017-03-23 | 2017-07-14 | 哈尔滨博斯首创医疗设备有限公司 | A kind of controllable limbs reduction unit |
| CN107260274A (en) * | 2017-07-11 | 2017-10-20 | 荆门市第二人民医院 | A kind of orthopaedics replacement and fixation frame |
| CN208435754U (en) * | 2017-11-30 | 2019-01-29 | 武汉恒鑫康得科技有限公司 | A kind of board-like exterior fixing rack for trauma fracture treatment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6887242B2 (en) * | 2001-10-17 | 2005-05-03 | Ortho Innovations, Llc | Split ring bone screw for a spinal fixation system |
| US7320555B2 (en) * | 2005-10-14 | 2008-01-22 | Sercomm Corporation | Cardan shaft structure with tightness adjustable functions |
| WO2009100459A1 (en) * | 2008-02-08 | 2009-08-13 | Texas Scottish Rite Hospital For Children | External fixation strut |
-
2017
- 2017-11-30 CN CN201711244745.2A patent/CN107811688B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0707832A1 (en) * | 1994-10-12 | 1996-04-24 | Jean-Marie Hardy | External fixator |
| RU2177272C1 (en) * | 2000-06-19 | 2001-12-27 | Общество с ограниченной ответственностью Научно-производственный центр "Углеродные волокна и композиты" | Device for performing perosseous osteosynthesis |
| CN201108488Y (en) * | 2007-12-20 | 2008-09-03 | 周建明 | Articulatio carpi exterior fixing rack |
| CN101828951A (en) * | 2010-04-26 | 2010-09-15 | 奚华高 | In vitro fracture fixer |
| EP2613074A1 (en) * | 2010-09-01 | 2013-07-10 | Lap Shun Manufacture Co. Ltd. | Tripod head locking device, adjusting device and holder panel device |
| CN102895022A (en) * | 2012-11-01 | 2013-01-30 | 北京市富乐科技开发有限公司 | Multidirectional adjustable external radioulna fixing frame |
| US8574232B1 (en) * | 2012-11-13 | 2013-11-05 | Texas Scottish Hospital for Children | External fixation connection rod for rapid and gradual adjustment |
| CN202960717U (en) * | 2012-12-14 | 2013-06-05 | 黄智勇 | External fixing device for fractured clavicle |
| CN105596067A (en) * | 2016-03-25 | 2016-05-25 | 郭谦 | Outer fixing bracket for wrist joint |
| CN106943185A (en) * | 2017-03-23 | 2017-07-14 | 哈尔滨博斯首创医疗设备有限公司 | A kind of controllable limbs reduction unit |
| CN107260274A (en) * | 2017-07-11 | 2017-10-20 | 荆门市第二人民医院 | A kind of orthopaedics replacement and fixation frame |
| CN208435754U (en) * | 2017-11-30 | 2019-01-29 | 武汉恒鑫康得科技有限公司 | A kind of board-like exterior fixing rack for trauma fracture treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107811688A (en) | 2018-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11660124B2 (en) | Non-fusion scoliosis expandable spinal rod | |
| CA2823579C (en) | Clamp for temporary or definitive external orthopaedic fixation, and external fixation system comprising said clamp | |
| RU2643103C2 (en) | External fixing connecting rod for fast and smooth adjustment | |
| EP3383297B1 (en) | External fixator assembly | |
| AU762786B2 (en) | Monolateral orthopaedic device with external fixing | |
| US9757153B2 (en) | External fixator | |
| US11812995B2 (en) | External fixation connection rod with female attachment | |
| CN114126517B (en) | Powered lap joint providing component interconnection for external fixator | |
| US20180368888A1 (en) | Orthopedic Strut With Lockable Swivel Hinges | |
| CN107811688B (en) | Plate-type external fixing support for fracture wound treatment | |
| CN111511298B (en) | Deformable power device | |
| CN102283700B (en) | Orthopedic external fixation support | |
| CN202207195U (en) | Outer fixed support for elbow joint facture | |
| CN109223160A (en) | Adjustable minimally invasive pressurization fixed guider and its application method of fracturing | |
| US11918253B1 (en) | Active variable stiffness clamping device for pelvic fracture reduction robot | |
| CN111053633A (en) | Extensible type broach for pediatric patient replacement surgery and use method thereof | |
| CN208435754U (en) | A kind of board-like exterior fixing rack for trauma fracture treatment | |
| CN203619643U (en) | External fixing support for pelvis fracture | |
| CN215606168U (en) | Orthopedic locking and fixing needle | |
| US20160151099A1 (en) | Bone fixation device | |
| CN215606170U (en) | Orthopedic locking external fixation frame | |
| TWI394553B (en) | External fixation for orthopedics | |
| CN220424340U (en) | Drainage tube fixing device | |
| CN103431899B (en) | Multifunctional traction repositor | |
| US10695095B2 (en) | Orthopedic strut with multiple attachment clamps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |