CN208551995U - Skeletal fixation device - Google Patents
Skeletal fixation device Download PDFInfo
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- CN208551995U CN208551995U CN201721263343.2U CN201721263343U CN208551995U CN 208551995 U CN208551995 U CN 208551995U CN 201721263343 U CN201721263343 U CN 201721263343U CN 208551995 U CN208551995 U CN 208551995U
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- side plate
- bottom plate
- shaped hole
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Abstract
The utility model relates to a kind of skeletal fixation device, including fixed ontology, fixed ontology includes bottom plate, the first side plate and the second side plate, and the first side plate is equipped with the first strip-shaped hole, and the first side plate is additionally provided with the first break slot, and the trough rim of the first break slot extends to the first strip-shaped hole；First side plate and the second side plate are all provided with the same side in bottom plate and are arranged with bottom plate in angle, and the second side plate is equipped with the second strip-shaped hole, and the second side plate is additionally provided with the second break slot, and the trough rim of the second break slot extends to the second strip-shaped hole.Pass through the setting of bottom plate, the first side plate and the second side plate, bottom plate and bone-contact cooperate, first fixed jaw and the second fixed jaw hold bone tightly, and then the cooperation and fixation of realization and bone, it due to being made by human body absorbable material, is degraded and absorbs by human body in bone healing, skeletal fixation device takes out without second operation, the setting of first break slot and the second break slot reduces stimulation of the skeletal fixation device to bone damage position, promotes bone Rapid development.
Description
Technical field
The utility model relates to skeletal fixation technical fields, more particularly to a kind of skeletal fixation device.
Background technique
Internal fixation is that face will break directly in or beyond knochenbruch with objects such as metallic screw, steel plate, intramedullary needle, steel wire or bone plates
The operation that bone is connected and fixed, referred to as internal fixation.This operation is chiefly used in open reduction of fracture and osteotomy, to keep
Roll over the reset at end.
Metal inside-fixture is wider in the clinical application of orthopaedics, is one of most common inside-fixture of current treatment fracture.
Traditional bone fracture internal fixation material is generally made of stainless steel, titanium and its alloy, and as time goes by and metal inside-fixture is answered
Constantly expanded with range, its own disadvantage also gradually exposes, and fitness is poor between metal inside-fixture and bone, is also easy to produce secondary work
With.
Utility model content
Based on this, it is necessary to aiming at the problem that working poor between inside-fixture and bone, provide a kind of skeletal fixation device.
Its technical solution is as follows:
A kind of skeletal fixation device, including ontology is fixed made of absorbable material, fixed ontology includes: bottom plate, bottom plate
Including the first side and the second side being oppositely arranged with the first side；First side plate, the first side plate be set to the first side, first
Side plate be equipped with the first strip-shaped hole, the first strip-shaped hole in spacing be equipped with it is multiple, make the first side plate formed the first fixed jaw, the first side plate
It is additionally provided with the first break slot, the first break slot is through slot and not to be equipped in spacing multiple, and the trough rim of the first break slot extends to the
One strip-shaped hole；And second side plate, the second side plate are set to the second side, the first side plate and the second side plate are all provided in the same of bottom plate
Side simultaneously with bottom plate in angle be arranged, the second side plate be equipped with the second strip-shaped hole, the second strip-shaped hole in spacing be equipped with it is multiple, make second
Side plate forms the second fixed jaw, and the second side plate is additionally provided with the second break slot, and the second break slot is equipped with more for not through slot and in spacing
A, the trough rim of the second break slot extends to the second strip-shaped hole.
Above-mentioned skeletal fixation device, by the setting of bottom plate, the first side plate and the second side plate, bottom plate and bone-contact cooperate,
First fixed jaw and the second fixed jaw hold bone tightly, and then realize the cooperation and fixation with bone, due to bottom plate, the first side plate and
Second side plate is made by human body absorbable material, after skeletal fixation device and skeletal fixation, in bone growth and healing
It is gradually degraded and absorbs by human body, taken out without second operation, the setting of the first break slot and the second break slot reduces skeletal fixation
Stimulation of the device to bone damage position promotes bone Rapid development.
Technical solution is illustrated further below:
Bottom plate is equipped with the stress window for discharging stress in one of the embodiments, and stress window is arranged in through-hole.
The setting of stress window can be relieved skeletal fixation device using when the distortional stress that generates and then avoid can not more preferably and bone after deformation
Bone cooperation is fixed, and the fitness of skeletal fixation device and bone is further improved.
The width direction of bottom plate and length direction are respectively X axis and Y-axis in one of the embodiments, and bottom plate is set
There is first surface, axial direction where arc surface of the first surface in length direction is in the same direction with X axis, and first surface is in width direction
It is axial in the same direction with Y-axis where arc surface.The setting of first surface is to preferably cooperate with bone and fix, and first surface exists
The cambered surface of X axis and Y-axis can make skeletal fixation device pass through when in use deformation stress realize with the closer cooperation of bone,
To realize better clinical use effect.
It is additionally provided with the second curved surface and third curved surface in one of the embodiments, the second curved surface connects the interior of the first side plate
The arc surface place of the medial surface of side and bottom plate, the second curved surface is axial in the same direction with Y-axis, and third curved surface connects the second side plate
The arc surface place of the medial surface of medial surface and bottom plate, third curved surface is axial in the same direction with Y-axis.Second curved surface and third curved surface
Setting further makes skeletal fixation device and skeletal fixation that marginal position be made also can preferably to match fixation when cooperating, and utilizes the
The setting of two curved surfaces and third curved surface also reduces the influence to skeleton development, and then improves secure fit degree, promotes bone raw
Long and clinical treatment.
The first fixed jaw includes multiple first grasping parts in one of the embodiments, two neighboring first grasping part it
Between form the first strip-shaped hole, the thickness of the first grasping part gradually becomes smaller towards the direction far from bottom plate, and the second fixed jaw includes multiple
Second grasping part, forms the second strip-shaped hole between two neighboring second grasping part, and the thickness of the second grasping part is towards far from bottom plate
Direction gradually becomes smaller.The purpose of the setting is to keep the thickness of the first grasping part end and the second grasping part end smaller, to reduce
To the stimulation of bone when holding, the side effect to bone and bone peripheral organs is reduced.
The gripper end of the first grasping part and the gripper end of the second grasping part are set in arc surface in one of the embodiments,
It sets.Stimulation of the reduction of gripper end maximizing when being held tightly with bone of arc surface setting to bone, especially holding position
It is also possible to touch the corporality tissue of bone root, the injury caused by human body when setting greatly reduces holding in this way,
Improve clinical therapeutic efficacy.
The inclined face of the groove bottom of the first break slot is arranged, makes the slot bottom of the first break slot in one of the embodiments,
Wall thickness gradually becomes smaller far from bottom plate direction, the inclined face setting of the groove bottom of the second break slot, the slot for making the second break slot
Bottom wall thickness gradually becomes smaller far from bottom plate direction.Skeletal fixation device in pre- thermal deformation, the notch position of the first break slot and
The notch position of second break slot can thicken or generate fold and then make to the clinical difficulty for increasing wound suture, and easily to bone
Bone tissue generates stimulation, is unfavorable for clinical treatment, and slot bottom wall thickness weakens pre- in the gradually smaller setting in separate bottom plate direction
The degree of the increase of thickness or generation fold when thermal deformation uses, makes thickness that will not increase excessive or generate excessive fold, into
And play better clinical therapeutic efficacy.
Bottom plate is additionally provided with the shelves pin with the cooperation of fracture gap in one of the embodiments, and shelves pin is equipped with bottom plate in folder
The inclined-plane of angle setting, shelves pin are equipped at least two in spacing.Shelves pin and the cooperation of fracture gap, prevent the expansion in fracture gap,
In fracture site tissue development agglutination, shelves pin is gradually degraded and absorbed, so that stress is also gradually reduced, improves fracture portions
Development degree, the setting of shelves pin ramp directly slides into fracture line gap convenient for shelves pin, saving temporary treatment and operating time.
Stress window is in there are two spacing is set in one of the embodiments, and the spacing of two stress windows is that bottom plate is long
The half of degree.Two stress windows are set in distance and keep the stress relief of plastic deformation more uniform, make skeletal fixation device and bone
Bone more preferably cooperates fixation, improves matching degree, and the pressure that bone can generate may be made by reducing skeletal fixation device by uniform force
With.
The U-shaped setting of the shape of the shape of first strip-shaped hole and the second strip-shaped hole in one of the embodiments, the
The position of one strip-shaped hole and the position of the second strip-shaped hole are in be arranged in a staggered manner.It is arranged in a staggered manner so that the first side plate and the second side plate are to bone
The holding of bone is closer and stress is more uniform, avoids side effect caused by holding unbalance stress tightly.
Detailed description of the invention
Fig. 1 is the overall structure diagram of skeletal fixation device；
Fig. 2 is the front view of skeletal fixation device；
Fig. 3 is the left view of skeletal fixation device；
Fig. 4 is the intermediate cross-section schematic diagram of skeletal fixation device.
100, bottom plate, 110, stress window, 120, shelves pin, 130, first surface, the 210, first side plate, the 211, first grasping
Portion, the 212, first strip-shaped hole, the 213, first break slot, the 214, second curved surface, the 220, second side plate, the 221, second grasping part,
222, the second strip-shaped hole, the 223, second break slot, 224, third curved surface.
Specific embodiment
The embodiments of the present invention are described in detail with reference to the accompanying drawing:
It should be noted that it can be directly in another element when alleged element is with another element " fixation " in text
Above or there may also be elements placed in the middle.When an element is considered as with another element " connection ", it be can be directly
It is connected to another element in succession or may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element
When "upper", intermediary element is not present.Term as used herein "vertical", "horizontal", "left" and "right" and similar table
It states for illustrative purposes only, is not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
As shown in Figures 1 to 4, a kind of skeletal fixation device, including ontology is fixed made of absorbable material, fixed ontology
It include: bottom plate 100, bottom plate 100 includes the first side and the second side being oppositely arranged with the first side；First side plate 210, the
Side plate 210 is set to the first side, and the first side plate 210 is equipped with the first strip-shaped hole 212, and the first strip-shaped hole 212 is equipped with more in spacing
It is a, so that the first side plate 210 is formed the first fixed jaw, the first side plate 210 is additionally provided with the first break slot 213, and the first break slot 213 is
Not through slot and in spacing be equipped with it is multiple, the trough rim of the first break slot 213 extends to the first strip-shaped hole 212；And second side plate 220,
Second side plate 220 is set to the second side, the first side plate 210 and the second side plate 220 set on the same side of bottom plate 100 and with bottom
Plate 100 is arranged in angle, and the second side plate 220 is equipped with the second strip-shaped hole 222, the second strip-shaped hole 222 in spacing be equipped with it is multiple, make the
Two side plates 220 form the second fixed jaw, and the second side plate 220 is additionally provided with the second break slot 223, the second break slot 223 be not through slot,
And in spacing be equipped with it is multiple, the trough rim of the second break slot 223 extends to the second strip-shaped hole 222.
By the setting of bottom plate 100, the first side plate 210 and the second side plate 220, bottom plate 100 and bone-contact cooperate, and first
Fixed jaw and the second fixed jaw hold bone tightly, and then realize the cooperation and fixation with bone, due to bottom plate 100, the first side plate 210
It is made with the second side plate 220 by human body absorbable material, after skeletal fixation device and skeletal fixation, in bone growth and more
It is gradually degraded and absorbs by human body in conjunction, taken out without second operation, the setting drop of the first break slot 213 and the second break slot 223
Stimulation of the low skeletal fixation device to bone damage position promotes bone Rapid development.
Further, bottom plate 100, the first side plate 210 and the second side plate 220 are in being wholely set, as shown in Figure 1 to Figure 3,
Skeletal fixation device is arranged in inverted u-shaped, and manufacture is integrally formed when production, can be used directly after water bath processing, structure is simple, adds
Work is convenient, reduces production cost.
It is harmless or have certain side effect, this kind in addition, absorbable material refers to the material for the degradation that can be absorbed by the body
Material can be chitin, collagen, polylactic acid, poly- second glue ester-lactide copolymer, poly-p-dioxanone and polycaprolactone
Etc. any, or meet any several mixing materials in the case where functional requirement again.Such as: solid using poly-lactic acid material production bone
Determine device.
Polylactic acid, full name in English Polylactic acid, abbreviation PLA are to rapidly develop the new of rise the 1990s
A generation can degradable high molecular material.Polylactic acid has excellent biocompatibility and absorbability, nontoxic, nonirritant,
It is decomposed completely under the effects of its microorganism in nature, water, acid, alkali, final product CO2And H2O, no pollution to the environment,
Extensive concern and further investigation by countries in the world.Meanwhile it is passed through in the intracorporal intermediate product lactic acid of people property nontoxic to the human body
United States Food and Drag Administration (FDA) approval is used as biodegradable stent, medicine controlled release carrier, medical operation suture thread and fracture
The biological medical polymer materials such as internal fixation material.
Using the physics and chemical modification of polylactic acid, by different processing technologys, it is made in the orthopaedics of different purposes solid
Earnest, such as maxillofacial bone bone plate, rib connecting plate, bone fracture plate for breastbone and skeletal fixation screw is made.Due to can be directly by people
Body absorbs degradation, takes out without subsequent open surgery, intensity is gradually reduced in degradation process, the distortional stress of polylactic acid material
It is slowly transferred to fracture site, and then fracture end is stimulated to heal.The fixed stress shielding generated, the material in relatively traditional metal
Skeletal fixation device made of matter can significantly mitigate patient physiologically, psychological burden.
As shown in Figure 1, Figure 2 and Figure 4, bottom plate 100 is equipped with the stress window 110 for discharging stress, and stress window 110 is in
Through-hole setting.The setting of stress window 110 can be relieved skeletal fixation device using when the distortional stress that generates and then after avoiding deformation
It can not more preferably cooperate with bone and fix, further improve the fitness of skeletal fixation device and bone.
The setting of stress window 110 has the effect that in clinic plastic deformation
One, the bottom plate 100 of the stretcher strain outward of skeletal fixation device both ends namely skeletal fixation device is resisted respectively towards the
The stretcher strain in 220 direction of 210 direction of side plate and the second side plate is made since this deformation can play certain obstruction to clinical manipulation
With, enable intermediate width narrow indirectly, so the occurrence of setting stress window 110 avoids this；
Two, when skeletal fixation device clinical application moulding, moulding stress is released by stress window 110, avoids bottom
Play fold in the upper surface of plate 100；
Three, the setting of stress window 110 can also be used in the grasping for cooperating mating instrument, shorten skeletal fixation device from water-bath to
The crawl time of fracture site, and then product is extended from soft state to the solid time, and then strives for more times and bone
It carries out more preferably fixed and cooperates.
On the basis of any of the above-described a embodiment, the width direction and length direction of bottom plate 100 are respectively X axis and Y
Axial direction, bottom plate 100 are equipped with first surface 130, and axial direction where arc surface of the first surface 130 in length direction is in the same direction with X axis,
It is axial in the same direction with Y-axis where arc surface of the first surface 130 in width direction.The setting of first surface 130 is in order to more preferable
Cooperate with bone and fix, first surface 130 can make skeletal fixation device pass through change when in use in the cambered surface of X axis and Y-axis
The stress of shape is realized and the closer cooperation of bone, to realize better clinical use effect.
On the basis of any of the above-described a embodiment, it is additionally provided with the second curved surface 214 and third curved surface 224, the second curved surface 214
The medial surface of the first side plate 210 and the medial surface of bottom plate 100 are connected, the arc surface place of the second curved surface 214 is axial same with Y-axis
To third curved surface 224 connects the medial surface of the second side plate 220 and the medial surface of bottom plate 100, the arc surface institute of third curved surface 224
It is in the same direction with Y-axis in axial direction.The setting of second curved surface 214 and third curved surface 224 further makes skeletal fixation device and skeletal fixation
So that marginal position also can be preferably matched fixation when cooperation, and is also dropped using the setting of the second curved surface 214 and third curved surface 224
The low influence to skeleton development, and then secure fit degree is improved, promote bone growth and clinical treatment.
Further, each connecting portion of skeletal fixation device is equipped with arc-shaped curved surface, which is R arc, and R arc is
The radian data obtained after medically for statistical analysis to the radian of different bone privileged sites.For example, in skeletal fixation device
When carrying out that clinical rib cage is fixed to cure, R arc be according to the radian of clinically practical rib cage it is for statistical analysis after take averagely
Data and the radian data being designed out, this radian are the radian of both direction, X axis radian namely the second curved surface 214
Radian and third curved surface 224 radian, specific data be the second curved surface 214 radian and third curved surface 224 radian it is equal,
That is the arc radius of the second curved surface 214 and the arc radius of third curved surface 224 be between 25mm-29mm, Y-axis radian namely
The radian data of first surface 130, specific data are the radian of first surface 130, and the arc radius of first surface 130 is
192mm-195mm, the arc radius of first surface 130 are greater than the arc radius of the second curved surface 214, first surface 130 herein
Arc radius refers to that arc radius of the first surface 130 in Y-axis, first surface 130 are bent in the arc radius wall first of X axis
Face 130 is small in the arc radius of Y-axis.The bending strength for improving skeletal fixation device is set in this way, and average bending strength is
520N, and then keep the structure of skeletal fixation device firmer.Since skeletal fixation device needs to carry out water-bath change in clinical use first
Shape, in the hot water, skeletal fixation device is along the first surface 130 of its setting, each circle of the second curved surface 214 and third curved surface 224
Cambered surface is deformed, and to be more bonded rib surface, is realized the more preferable fitness of skeletal fixation device and rib cage, is realized patient bone
More preferable clinical therapeutic efficacy.
On the basis of any of the above-described a embodiment, as shown in Figures 1 to 4, the first fixed jaw includes multiple first graspings
Portion 211 forms the first strip-shaped hole 212 between two neighboring first grasping part 211, and the thickness of the first grasping part 211 is towards the bottom of far from
The direction of plate 100 gradually becomes smaller, and the second fixed jaw includes multiple second grasping parts 221, between two neighboring second grasping part 221
The second strip-shaped hole 222 is formed, the thickness of the second grasping part 221 gradually becomes smaller towards the direction far from bottom plate 100.The purpose of the setting
It is to keep the thickness of 221 end of 211 end of the first grasping part and the second grasping part smaller, stimulation when being held tightly with reducing to bone,
Reduce the side effect to bone and bone peripheral organs.
For convenience of description, the first break slot 213 and the second break slot 223 are referred to as break slot, by the first bar shaped
Hole 212 and the second strip-shaped hole 222 are referred to as strip-shaped hole, and the first grasping part 211 and the second grasping part 221 are referred to as grasping part,
First fixed jaw and the second fixed jaw are referred to as fixed jaw.
As shown in Figures 1 to 4, fixed jaw includes multiple grasping parts, and the thickness of each grasping part is designed using Variable rate,
The thickness of each grasping part gradually becomes smaller from top to bottom, it may be assumed that the depth of skeletal fixation position is deeper, then the thickness of grasping part is got over
Thin, therefore, the thickness for holding position when grasping part holds bone lesion locations tightly or in art when moulding tightly will not be because holding squeezing for generation tightly
It presses and increases its own thickness excessively, the thickness of grasping part terminal position is minimum, even if generating compression or fold, the increasing of thickness
Add also limited, so that side effect will not be generated to bone and perienchyma, while being also conducive to the suture of wound, and reduce to periosteum
Stimulation, conducive to the healing of wound.
Further, as depicted in figs. 1 and 2, the thickness of grasping part is from top to bottom gradually thinning, and thinning mode is served as reasons
Plate face on the outside of side plate inwards tilts, it may be assumed that the lateral surface of grasping part be equipped with flare face, flare face by break slot lower end position
Start setting up, the tilt angle in flare face is 7 °, the grasping part end position Bao with a thickness of 1mm.In the clinic of rib cage treatment
In, after skeletal fixation device water-bath, bending processing is carried out to fixed jaw, the fixed jaw after bending stimulates most on the inside of rib cage
It is small, but since the thickness of grasping part from top to bottom gradually becomes smaller, after rib cage is encircled in the complete bending of fixed jaw, the entirety of fixed jaw
Thickness will increase, because of the from top to bottom gradually thinning setting of grasping part thickness, the thickness of fixed jaw is made to be unlikely to blocked up, thus
Mitigate the stimulation to rib cage, be internal organ on the inside of rib cage, and then mitigate the influence to peripheral organs, plays better therapeutic effect,
Reduce or avoid the side effect to human body.
On the basis of any of the above-described a embodiment, the grasping of the gripper end of the first grasping part 211 and the second grasping part 221
End is arranged in arc surface.Stimulation of the reduction of gripper end maximizing when being held tightly with bone of arc surface setting to bone,
Position is especially held tightly to be also possible to touch the corporality tissue of bone root, it may be to people when setting greatly reduces holding in this way
It is injured caused by body, improves clinical therapeutic efficacy.
Further, shown in as shown in Figure 1, Figure 3 and Figure 4, the end of gripper end is in semicircle shape setting, and each portion of gripper end
Divide and is arranged in arc surface.
On the basis of any of the above-described a embodiment, the inclined face setting of the groove bottom of the first break slot 213 makes first to slit
The slot bottom wall thickness of mouth slot 213 gradually becomes smaller far from 100 direction of bottom plate, and the inclined face of groove bottom of the second break slot 223 is set
It sets, gradually become smaller the slot bottom wall thickness of the second break slot 223 far from 100 direction of bottom plate.Skeletal fixation device is in pre- thermal deformation
When, the notch position of the notch position of the first break slot 213 and the second break slot 223 can thicken or generate fold, and then make to
Clinic increases the difficulty of wound suture, and easily generates stimulation to skeletal tissue, is unfavorable for clinical treatment, slot bottom wall thickness is separate
The gradually smaller setting in 100 direction of bottom plate weakens the increase of thickness when pre- thermal deformation uses or the degree of generation fold, makes thickness
Degree will not increase excessive or generate excessive fold, and then play better clinical therapeutic efficacy.
As shown in figures 1 and 3, the thinner thickness of the thickness of the first break slot 213 and the second break slot 223, inclined surface
Setting, so that this thinning thinning in gradual manner.In the clinical treatment of rib cage, the pre- thermal deformation of water-bath, grasping part are carried out
Bending processing is carried out according to frame section surface, although at this point, grasping part becomes in the first break slot 213 and 223 position of the second break slot
Thickness, but the thickness for avoiding due to the design gap groove location is blocked up, and then reduces the stimulation to skeletal tissue, promotes
The development and treatment of bone.
Specifically, the inclination plane inclination of 213 groove bottom of the first break slot is 10 ° -15 °, 223 groove bottom of the second break slot
Inclination plane inclination be 10 ° -15 °.
It it should be noted that the first break slot 213 and the second break slot 223 are not through slot, namely is not penetrating
Slot, as shown in figures 1 and 3.
On the basis of any of the above-described a embodiment, as shown in Figure 2 and Figure 4, bottom plate 100 is additionally provided with and the cooperation of fracture gap
Shelves pin 120, shelves pin 120 be equipped with bottom plate 100 be in angle setting inclined-plane, shelves pin 120 in spacing be equipped at least two.Shelves pin
120 cooperate with fracture gap, prevent the expansion in fracture gap, in fracture site tissue development agglutination, shelves pin 120 is gradually
It is degraded and absorbed, so that stress is also gradually reduced, improves the development degree of fracture portions, shelves are convenient in the setting of 120 ramp of shelves pin
Pin 120 directly slides into fracture line gap, saves temporary treatment and operating time.
Further, shelves pin 120 can be the other structures with the cooperation of fracture gap, such as pillar.
The purpose that shelves pin 120 is arranged is to reduce the increase in fracture gap after the fixed fracture site of clinic.As in rib cage
In clinical application, due to physiological respiration, rib cage can carry out expansion contraction along thorax, between skeletal fixation device and rib cage
Often there is not exclusively fixed situation, in the case where applying certain intensity of pressure, fracture site will appear cunning and drag, and increase fracture
Line will lead to bone delayed healing, in the case, designs shelves pin 120 and is used cooperatively during surgery with matched specific purpose tool,
When carrying out moulding to skeletal fixation device in art, shelves pin 120 is taken advantage of a situation in the fracture gap slided on bone, to further realize essence
True fixation and cooperation.
Specifically, two shelves pins 120 are set to the following table of bottom plate 100 there are two such as Fig. 2 and as shown in figure 4, shelves pin 120 sets
Face, the inclined design of shelves pin 120, when operation being made to carry out water-bath moulding to skeletal fixation device, the shelves pin 120 of 100 lower surface of bottom plate
In the slide-in fracture that can take advantage of a situation gap, according to bone clinical data, need to guarantee fracture line gap within 2mm, therefore, shelves pin 120
Width design is 2.5mm, and the inclined-plane angle of shelves pin 120 is designed as 50 °, and the line space design of shelves pin 120 is 40mm, is arranged so not
The condition of poroma formation can only be met, and compared with the design being completely fixed originally, become from rigidly fixing for Metallic anchors
The flexible fastening of this structure, the more conducively formation of poroma promote knitting.
As shown in figure 4, upper and lower part is respectively provided with a shelves pin 120,120 inclined-plane of shelves pin on top is set towards upper right side inclination
It sets, 120 inclined-plane of shelves pin of lower part is obliquely installed towards lower right, and setting is after shelves pin 120 slides into fracture gap in this way, due to bone
The whole effect of fixator avoids the further expansion in fracture gap, in fractures so that the both ends bone to split can not separate
During the growth healing of position, shelves pin 120 is also gradually degraded and absorbed, and stress suffered by the position of gap of fracturing also gradually becomes
It is small, thus quick healing, 120 pairs of shelves pin fracture gap positions against the effect of stimulating growth is also acted as, to promote clinic
Treatment.It is of course also possible to multiple grades of pins 120 are according to circumstances arranged, the inclined-plane inclined direction of shelves pin 120 can in the same direction or in the same direction and not
Interval setting in the same direction.
On the basis of any of the above-described a embodiment, stress window 110 is in two stress windows 110 there are two spacing is set
Spacing be 100 length of bottom plate half.Two stress windows 110 are set in distance and keep the stress relief of plastic deformation more equal
It is even, so that skeletal fixation device and bone is more preferably cooperated fixation, improve matching degree, reducing skeletal fixation device by uniform force may be right
The pressure effect that bone can generate.
Further, stress window 110 can be according to circumstances arranged multiple, the setting of the rounded through-hole of stress window 110, round
The setting of through-hole reduces production cost so that processing is more convenient, while being also convenient for and supporting tool cooperation clamps.
Specifically, as shown in Figure 1, Figure 2 and Figure 4, stress window 110 designs for circular through hole, Circularhole diameter 3.5mm,
The circular hole hole center spacing of two neighboring stress window 110 is L/2, and L is the total length of bottom plate 100, this stress window 110 is main
For in clinic when plastic deformation produced stress release.Skeletal fixation device deforms in hot bath, due to skeletal fixation
Curved surface arcuate positions on device generate opposite stress, if be arranged without stress window 110, skeletal fixation device in the hot water can
Towards radian opposite direction deform, cause can not clinical use consequence, since stress window 110 is to the release of stress and to stress
Relaxation effect, when plastic deformation in the hot water, skeletal fixation device is softened along radian direction, thus for clinical normal
It uses.
On the basis of any of the above-described a embodiment, the shape of the shape of the first strip-shaped hole 212 and the second strip-shaped hole 222 is equal
The position of U-shaped setting, the position of the first strip-shaped hole 212 and the second strip-shaped hole 222 is in be arranged in a staggered manner.First strip-shaped hole 212
It is similar with the effect of stress window 110 with the effect of the second strip-shaped hole 222, there is the benefits of playing the same tune on different musical instruments, be arranged in a staggered manner so that
Side plate 210 and the second side plate 220 is closer to the holding of bone and stress is more uniform avoids caused by holding unbalance stress tightly
Side effect.
Shown in as shown in Figure 1, Figure 3 and Figure 4, the first strip-shaped hole 212 and the second strip-shaped hole 222 are not to correspond to each other the difference of position
Set on the first side plate 210 and the second side plate 220, but in position setting is mutually staggered, in this way consolidate the first fixed jaw and second
It is more firm to the holding of bone to determine pawl.
Further, shown in as shown in Figure 1, Figure 3 and Figure 4, since the first strip-shaped hole 212 and the second being staggered for strip-shaped hole 222 are set
It sets, also makes the first side plate 210 and the both ends of the second side plate 220 have avoiding space, which can also play
When being bonded fixed with bone, it is further reduced the stimulation to skeletal tissue or its hetero-organization of periphery, reduces the generation of side effect.
When using skeletal fixation device, puts it into carry out water-bath in the hot water of insulating box first, the hot water in insulating box
For physiological saline, when water-bath, the pre- thermal deformation of skeletal fixation device.In practical operation, physiological saline is carried out being heated to one first
Determine temperature, skeletal fixation device is placed in insulating box 2 minutes, takes out, put after soft state to solid-state by the temperature then kept constant
Fixed fracture site is being needed, is being fixed.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of skeletal fixation device, which is characterized in that including fixing ontology, the fixed ontology packet made of absorbable material
It includes:
Bottom plate, the bottom plate include the first side and the second side for being oppositely arranged with first side；
First side plate, first side plate be set to first side, first side plate be equipped with the first strip-shaped hole, described first
Strip-shaped hole in spacing be equipped with it is multiple, so that first side plate is formed the first fixed jaw, first side plate is additionally provided with the first gap
Slot, first break slot be not through slot and in spacing be equipped with it is multiple, the trough rim of first break slot extends to described first
Strip-shaped hole；And
Second side plate, second side plate are set to second side, and first side plate and second side plate are all provided in institute
It states the same side of bottom plate and is arranged with the bottom plate in angle, second side plate is equipped with the second strip-shaped hole, second bar shaped
Hole in spacing be equipped with it is multiple, so that second side plate is formed the second fixed jaw, second side plate is additionally provided with the second break slot, institute
State the second break slot be not through slot and in spacing be equipped with it is multiple, the trough rim of second break slot extends to second bar shaped
Hole.
2. skeletal fixation device according to claim 1, which is characterized in that the bottom plate is equipped with the stress for discharging stress
Window, the stress window are arranged in through-hole.
3. skeletal fixation device according to claim 2, which is characterized in that the width direction and length direction of the bottom plate point
Not Wei X axis and Y-axis, the bottom plate is equipped with first surface, axial where arc surface of the first surface in length direction
It is in the same direction with the X axis, it is axial in the same direction with the Y-axis where arc surface of the first surface in width direction.
4. skeletal fixation device according to claim 3, which is characterized in that it is additionally provided with the second curved surface and third curved surface, it is described
Second curved surface connects the medial surface of first side plate and the medial surface of the bottom plate, axis where the arc surface of second curved surface
To in the same direction with the Y-axis, the third curved surface connects the medial surface of second side plate and the medial surface of the bottom plate, described
It is axial in the same direction with the Y-axis where the arc surface of third curved surface.
5. skeletal fixation device according to claim 1, which is characterized in that first fixed jaw includes multiple first graspings
Portion forms first strip-shaped hole between two neighboring first grasping part, and the thickness of first grasping part is towards far from institute
The direction for stating bottom plate gradually becomes smaller, and second fixed jaw includes multiple second grasping parts, two neighboring second grasping part
Between form second strip-shaped hole, the thickness of second grasping part gradually becomes smaller towards the direction far from the bottom plate.
6. skeletal fixation device according to claim 5, which is characterized in that the gripper end of first grasping part and described
The gripper end of two grasping parts is in arc surface setting.
7. skeletal fixation device according to claim 1, which is characterized in that the inclined face of groove bottom of first break slot
It is arranged, gradually becomes smaller the slot bottom wall thickness of first break slot far from the bottom plate direction, second break slot
The inclined face setting of groove bottom gradually becomes smaller the slot bottom wall thickness of second break slot far from the bottom plate direction.
8. skeletal fixation device according to claim 1, which is characterized in that the bottom plate is additionally provided with and the cooperation of fracture gap
Shelves pin, the shelves pin are equipped with the inclined-plane with the bottom plate in angle setting, and the shelves pin is equipped at least two in spacing.
9. skeletal fixation device according to claim 2, which is characterized in that the stress window is in there are two spacing is set two
The spacing of a stress window is the half of the floor length.
10. -9 described in any item skeletal fixation devices according to claim 1, which is characterized in that the shape of first strip-shaped hole
With the U-shaped setting of shape of second strip-shaped hole, the position of the position of first strip-shaped hole and second strip-shaped hole
Set is in be arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721263343.2U CN208551995U (en) | 2017-09-28 | 2017-09-28 | Skeletal fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721263343.2U CN208551995U (en) | 2017-09-28 | 2017-09-28 | Skeletal fixation device |
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| Publication Number | Publication Date |
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| CN208551995U true CN208551995U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721263343.2U Withdrawn - After Issue CN208551995U (en) | 2017-09-28 | 2017-09-28 | Skeletal fixation device |
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| CN (1) | CN208551995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693101A (en) * | 2017-09-28 | 2018-02-16 | 山东威高骨科材料股份有限公司 | Skeletal fixation device |
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2017
- 2017-09-28 CN CN201721263343.2U patent/CN208551995U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693101A (en) * | 2017-09-28 | 2018-02-16 | 山东威高骨科材料股份有限公司 | Skeletal fixation device |
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