Apart from boat wedge joint fusion plate
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of apart from boat wedge joint fusion plate.
Background technology
Muller-Weiss disease is a kind of rare clinical and agnogenic foot affliction, also known as " adult navicular bone is downright bad ".This disease is multiple is born in middle and aged women, carries out Varus deformity for feature with mesopodium chronic pain, navicular bone compression fragmentation and calcaneus.This sick most typical pathophysiological change is subtalar joint varus, arch of foot step-down, i.e. the formation of so-called unusual " varus-flatfoot " deformity and " apart from wedge joint ".For making a definite diagnosis and the invalid patient of expectant treatment, surgical operation is a kind of effective Therapeutic Method, conventional operation method is apart from boat wedge joint fusion, the key of joint fusion is to stablize, lead lean on fixing, and as stable, firm in hollow nail, pressed nail etc. often can not obtain the fixing of existing fixing means, loosening and solid failure are merged in postoperative easy appearance, finally cannot reach the therapeutic effect of expection.
When adopting traditional common fusion plate to carry out distance boat wedge facet fusion surgery, surgeon according to the skeleton profile of patient, need carry out bending to fusion plate, makes to merge plate and can be close to skeleton place.The bending of art light plate has a lot of limitation, is first to merge plate bending to add operating time, increases operation risk; Secondly, the fusion plate after bending easily forms stress and concentrates, and causes and merges plate fracture.In addition fixing hole can be caused to be out of shape after merging plate bending, cause fixing insecure, postoperative easy generation is merged plate and is loosened and slippage.And fusion plate mostly is " X " shape, for trans-articular fixes astragalus and cubitale, Anatomical Reconstruction arch of foot in the unfavorable Rhizoma Atractylodis Macrocephalae of this Type fusion plate.
Utility model content
The technical problems to be solved in the utility model is: adopt fixing easily appearance the such as hollow nail, pressed nail to merge loosening and solid failure to solve in prior art, common fusion plate is adopted to need bending in art, increase operating time, fusion plate after bending easily forms stress and concentrate to cause and merge plate fracture and fixing hole distortion causes fixing insecure, merge plate simultaneously and mostly be " X " shape, for trans-articular fixes astragalus and cubitale, the problem such as Anatomical Reconstruction arch of foot in unfavorable Rhizoma Atractylodis Macrocephalae.
This utility model provides a kind of apart from boat wedge joint fusion plate, this fusion plate designs for anatomical form, be convenient to anatomical reduction, without the need in art again to steel plate pre-bending, this fusion plate is fixed astragalus, navicular bone and cubitale simultaneously, not only solve adopt hollow nail, pressed nail etc. fixing easily occur merging loosen and solid failure problem, and solve in common fusion plate art and need bending to increase operating time, easily form stress and concentrate to cause and merge plate fracture and fixing hole distortion and to cause in fixing insecure and art the problems such as Anatomical Reconstruction arch of foot.
This utility model solves the technical scheme that its technical problem adopts:
A kind of distance boat wedge joint fusion plate comprises integrated fusion plate near-end, merge plate middle-end, merge plate far-end, merge plate near-end for connecting and merge the fusion plate plate body one of plate middle-end and merge plate middle-end and the fusion plate plate body two merging plate far-end for being connected, described fusion plate is provided with several for fusion plate is fixed on astragalus, the fixing hole of navicular bone and cubitale, described fusion plate is provided with a synthetism face, described fusion plate near-end synthetism face and astragalus configuration of surface match, described fusion plate middle-end synthetism face and navicular bone configuration of surface match, described fusion plate far-end synthetism face and cubitale configuration of surface match.
Particularly, described cubitale is one or more in medial cuneiform bone, intermediate cuneiform bone and lateral cuneiform bone.
Particularly, described fusion plate far-end is provided with several fixing holes, at least corresponding two fixing holes of every block cubitale.
Particularly, described fusion plate far-end is provided with several fixing holes, corresponding two fixing holes of every block cubitale.
Particularly, described fusion plate near-end is provided with at least two fixing holes, and described fusion plate middle-end is provided with at least two fixing holes.
Particularly, female thread is provided with in described fixing hole.
Particularly, described fusion plate is that rustless steel merges plate, titanium alloy merges plate, magnesium alloy merges plate, pure titanium merges plate or carbon steel merges plate.
The beneficial effects of the utility model are: this utility model provides a kind of apart from boat wedge joint fusion plate, this utility model provides a kind of apart from boat wedge joint fusion plate, this fusion plate designs for anatomical form, be convenient to anatomical reduction, without the need in art again to steel plate pre-bending, this fusion plate is simultaneously to astragalus, navicular bone and cubitale are fixed, not only solve employing hollow nail, fixing easily appearance the such as pressed nail merges loosening and solid failure problem, and solve in common fusion plate art need bending increase operating time, easy formation stress is concentrated to cause and is merged plate fracture and fixing hole and be out of shape problems such as causing in fixing insecure and art Anatomical Reconstruction arch of foot.
Merging plate plate body two is 2, for joint fusion provides more reliable stability; Merging plate fixing hole is the distribution of space multistory type, all has stronger hold to astragalus, navicular bone, cubitale; Merge plate and screw designs fully foundation Asia human body anatomical curvature design, fusion plate is placed more docile; Merge plate and adopt high strength design, be convenient to early functional exercise; Merge plate and adopt concealed edges design, the stimulation to soft tissue, lower than fusion plate face, all can be reduced in the head of a nail face of the screw of employing; This fusion plate is that the low incisura of anatomical form merges plate, plays better fixation equally for sufferers of osteoporosis face; This fusion plate can coordinate hollow nail to use together, can greatly increase internal fixtion stability, improves fusion rate; This fusion plate is specially adapted to pes cavus and the flat foot of arch of foot dorsal part, for plantar arch collapse and rebuild and can play good fixation, is also applicable to old wound deformity and rheumatoid arthritis simultaneously, and multi-joint osteotomy and merge orthomorphia.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation apart from boat wedge joint fusion plate of the present utility model;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the top view of Fig. 1.
In figure: 1. merge plate near-end, 2. merge plate middle-end, 3. merge plate far-end, 4. merge plate plate body one, 5. merge plate plate body two, 6. fixing hole, 7. synthetism face.
Detailed description of the invention
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with this utility model.
As shown in Figure 1 to Figure 3, a kind of apart from boat wedge joint fusion plate, comprise integrated fusion plate near-end 1, merge plate middle-end 2, merge plate far-end 3, merge plate near-end 1 for connecting and merge the fusion plate plate body 1 of plate middle-end 2 and merge plate plate body 25 for being connected two pieces of merging plate middle-end 2 and fusion plate far-end 3, merge plate and be provided with a synthetism face 7, the synthetism face 7 of merging plate near-end 1 matches with astragalus configuration of surface, the synthetism face 7 of merging plate middle-end 2 matches with navicular bone configuration of surface, the synthetism face 7 of merging plate far-end 3 matches with the configuration of surface of cubitale, merge plate and be provided with several for fusion plate is fixed on astragalus, the fixing hole 6 of navicular bone and cubitale.
As preferably, the fusion plate thickness in this specific embodiment is 1.7mm.
In a kind of detailed description of the invention, merge synthetism face 7 and the medial cuneiform bone of plate far-end 3, the configuration of surface of one or more in intermediate cuneiform bone and lateral cuneiform bone matches, it is contemplated that: astragalus can be fixed on whole apart from boat wedge fusion plate, navicular bone and single cubitale (medial cuneiform bone, intermediate cuneiform bone or lateral cuneiform bone) on, also can be fixed on astragalus by whole apart from boat wedge fusion plate, navicular bone and two cubitale (medial cuneiform bones, the combination of two of intermediate cuneiform bone and lateral cuneiform bone) on, also can be fixed on astragalus by whole apart from boat wedge fusion plate, navicular bone, medial cuneiform bone, on intermediate cuneiform bone and lateral cuneiform bone.In this specific embodiment, the synthetism face 7 of merging plate far-end 3 matches with the configuration of surface of medial cuneiform bone, intermediate cuneiform bone and lateral cuneiform bone, and fixed range is large, and the suitability is wide.
In a kind of detailed description of the invention, each position of merging plate corresponding with astragalus, navicular bone and cubitale is at least provided with two fixing holes 6 for fixing fusion plate.In this specific embodiment, merge plate far-end 3 and be provided with 6 fixing holes 6, each corresponding two fixing holes 6 of medial cuneiform bone, intermediate cuneiform bone and lateral cuneiform bone three pieces of cubitales, merge plate near-end 1 and be provided with two fixing holes 6, merge plate middle-end 2 and be provided with three fixing holes 6.
This merges plate is the low incisura steel plate of anatomical form, when performing the operation, merging plate and being positioned over astragalus, navicular bone, cubitale dorsal part, merging the holes of plate near-end 1, for fixing head of talus; Three holes of merging plate middle-end 2 are used for fixing foot nut bone; Merge plate far-end 3 the widest, for fixing three pieces of cubitales.Merge plate and form parcel to astragalus, navicular bone, cubitale dorsal part, when making to be screwed, screw is that space multistory type is fixed, and has stronger hold, play better fixation equally for sufferers of osteoporosis face to three Os Sus domestica blocks.In order to avoid post-operative fusion plate or screw incisura too high, can select locking 2.7mm and non-locking 2.7mm two kinds of screws.
In a kind of detailed description of the invention, merge plate and rustless steel fusion plate, titanium alloy fusion plate, magnesium alloy fusion plate, pure titanium fusion plate or carbon steel can be selected to merge plate.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, must determine its technical scope according to right.