CN107115163A - A kind of personalized articular fossa of temporal bone prosthese - Google Patents
A kind of personalized articular fossa of temporal bone prosthese Download PDFInfo
- Publication number
- CN107115163A CN107115163A CN201610105007.9A CN201610105007A CN107115163A CN 107115163 A CN107115163 A CN 107115163A CN 201610105007 A CN201610105007 A CN 201610105007A CN 107115163 A CN107115163 A CN 107115163A
- Authority
- CN
- China
- Prior art keywords
- patient
- wing plate
- condyle
- zygomatic arch
- temporal bone
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
- A61F2/3099—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for temporo-mandibular [TM, TMJ] joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
- A61F2002/30326—The prosthesis having different structural features at different locations within the same prosthesis differing in height or in length
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
- A61F2002/30654—Details of the concave socket
- A61F2002/30655—Non-spherical concave inner surface
Abstract
The invention discloses a kind of personalized articular fossa of temporal bone prosthese, including outside maintenance wing plate and the prominent support face of condyle, outside maintenance wing plate medial surface is fitted maintenance with patient's zygomatic arch lateral surface, the lower edge of outside maintenance wing plate is connected as one with the prominent support face of condyle, there is a top bump on the top surface in the prominent support face of condyle, top bump is located at the medial surface direction of outside maintenance wing plate, the prominent support face top surface of condyle with top bump is fitted with temporomandibular joint nest, fitted in the form of wrapping up with lower condyle protruding head the bottom surface in the prominent support face of condyle, the length of the outside maintenance wing plate, height and zygomatic arch structure matching of at least one in the rough pattern of medial surface according to patient.The present invention can reduce the bone stock removal to patient's zygomatic arch in the operation of articular fossa of temporal bone Using prosthesis, mitigate wound and interference of the articular fossa of temporal bone Using prosthesis to patient's zygomatic arch surrounding tissue, and fossa glenoid prosthese is had more preferable stability.
Description
Technical field
The present invention relates to field of medical technology, and in particular to a kind of personalized articular fossa of temporal bone prosthese.
Background technology
Remporomandibular joint displacement is the serious osteoarthritis for the treatment of, arthrocleisis, the prominent tumour of condyle and condyle thumping
The important means of the diseases such as hair property absorption.Remporomandibular joint prosthetic replacement is performed the operation, and there is stabilization not absorb, need not
The second field of operation is opened up so as to reduce the advantage of operation wound, is widely used abroad.External standard
Type articular fossa of temporal bone prosthese is according to designed by white anatomical structure, to be deposited with the anatomical structure of Chinese
In different, using when art in need to carry out bone grinding to match prosthese form, operating difficulty is big, there is basis cranii
And nervus alverlaris vascular bundles damage risk.
At present, existing domestic scholars disclose a kind of artificial temporomandibular joint of standard type of suitable Chinese's anatomic form
Fossa glenoid prosthese, the fossa glenoid prosthese includes a maintenance wing plate for contacting and being fixed thereon with zygomatic arch, Gu
Position wing plate has the length, height and thickness of standard.Due to the personalized difference of human body zygomatic arch structure, especially
It is the length, highly inconsistent of the zygomatic arch of Different Individual, and is found in process of clinical application, patient's cheekbone
It is generally in up-and-down form to bend lateral surface, false using standard type articular fossa of temporal bone for different patients
Body carries out replacement operation, easily occurs maintenance wing plate size and is mismatched with patient's zygomatic arch size, causes wing plate maintenance
Effect is not good, and wing plate fits imprecision with patient's zygomatic arch lateral surface, it is necessary to carry out sclerotin to patient's zygomatic arch
Grinding, or cause articular fossa of temporal bone entirety because there is laminating gap.And under temporo
The stability of jaw fossa glenoid is not good, and slight reach, lift occurs in the center of rotation for easily causing whole remporomandibular joint
High or decline, so that the problems such as triggering including chewing muscular fatigue, limitation of mouth opening.
The content of the invention
The purpose of the present invention, is to provide a kind of articular fossa of temporal bone prosthese of individualized fit design, to solve
The unstable problem of maintenance of the articular fossa of temporal bone prosthese in process of clinical application.
To realize object above, the invention provides a kind of articular fossa of temporal bone prosthese, the articular fossa of temporal bone
Prosthese includes outside maintenance wing plate and the prominent support face two parts of condyle, medial surface and the patient's cheekbone of outside maintenance wing plate
Bend lateral surface laminating maintenance, the lower edge of outside maintenance wing plate is connected as one with the prominent support face of condyle, condyle is dashed forward support
The top surface in face is located at the medial surface direction of outside maintenance wing plate, band with a top bump, the top bump
The condyle for having top bump support face top surface of dashing forward fit with the basis cranii medial surface of patient, the bottom surface in the prominent support face of condyle with
Parcel form is fitted with lower condyle protruding head, in the rough pattern of the length of the maintenance wing plate, height and medial surface
At least one according to the zygomatic arch structure individualized fit of patient.
At least one in the rough pattern of the length of outside maintenance wing plate, height and medial surface is according to patient's
Zygomatic arch structure individualized fit includes：By the measurement of the zygomatic arch to patient, the zygomatic arch structure number of patient is obtained
According to, including：In the rough pattern on the zygomatic arch length of patient, zygomatic arch height and zygomatic arch lateral surface surface at least
One.
As an alternative, the articular fossa of temporal bone prosthese is processed by the integration of high-molecular polythene material
Shaping.
As an alternative, the length of outside maintenance wing plate according to patient's zygomatic arch length individualized fit,
Scope is 20~30mm.
As an alternative, the height of outside maintenance wing plate according to patient's zygomatic arch height individualized fit,
The upper limb of wing plate is without departing from the bone region upper limb of patient's zygomatic arch, and scope is 5~8mm.
As an alternative, the rough pattern of the medial surface of outside maintenance wing plate is according to the zygomatic arch knot of patient
Structure individualized fit, including：The rough pattern of the medial surface of outside maintenance wing plate and patient's zygomatic arch lateral surface table
The rough pattern in face matches, at the most protrusion of patient's zygomatic arch lateral surface surface, the thickness value of outside maintenance wing plate
It is minimum；Patient's zygomatic arch lateral surface surface most recess, the thickness value of the outside maintenance wing plate is maximum；Outside
The thickness value of maintenance wing plate changes according to the sinking degree of patient's zygomatic arch lateral surface, scope be 1.5~
3.5mm。
As an alternative, there are multiple screw holes on the maintenance wing plate of outside, screw hole is with single row or multiple rows
Staggeredly form arrangement, screw hole diameter range be 1.5~2.0mm, using with screw bore dia identical spiral shell
Nail, the zygomatic arch for making wing plate and patient through screw hole is connected.
As an alternative, the shape and size of the top bump on the prominent support face top surface of condyle, according to trouble
The depression form individualized fit of person's articular fossa of temporal bone, the condyle with a top bump is dashed forward support face top surface,
It can be brought into close contact with temporomandibular joint noodles.
As an alternative, the bottom surface in the prominent support face of condyle is oval spherical a, support caved inward
Thickness >=the 4mm in face, the prominent support face of condyle connects downwards lower condyle protruding head in the form of wrapping up.
As an alternative, the width of the top planes width and temporomandibular joint nest in the prominent support face of condyle
Individualized fit is spent, scope is 12~15mm.
As an alternative, the condyle protruding head size of the base plane width and bottom parcel in the prominent support face of condyle
Individualized fit, scope is 14~20mm.
As an alternative, condyle dash forward support face bottom front and back direction, be respectively provided with one piece along holding
The baffle plate that support bottom is extended downwardly, the height of baffle plate is that 5mm, thickness are 3mm, can prevent condyle protruding head from existing
The dislocation that may occur during being moved in fossa glenoid prosthese.
The advantage of the invention is that：With the length and the outside maintenance wing plate of height individualized fit of patient's zygomatic arch,
While being effectively available for the area of fossa glenoid prosthese maintenance using patient's zygomatic arch, it is to avoid standard type fossa glenoid is false
The side maintenance wing plate of body is long, it is too high caused by wound to patient's zygomatic arch surrounding tissue and interference, eliminate
The harmful effect that healing is caused is grown to patient's postoperative muscle；According to the concave-convex on patient's zygomatic arch lateral surface surface
The outside maintenance wing plate of state personalized designs medial surface concave-convex surface form, is solved fixed thick in the prior art
The side maintenance wing plate of degree fitted with patient's zygomatic arch maintenance when, because patient's zygomatic arch lateral surface surface is that out-of-flatness is concavo-convex
The problem of there is gap after the caused bad, laminating of fitting of form, effectively increases outside maintenance wing plate and cheekbone
Bend the stability after maintenance, and ensure that the intensity of wing plate, so that the problems such as will not being produced in art because prizing
And the prothesis dislocation triggered, wherein, thickness minimum value is set as that 1.5mm ensure that the strong of maintenance wing plate itself
Degree and rigidity requirement, maximum thickness 3.5mm ensure that will not be because of the growth of the blocked up influence patient muscle of wing plate
And cause the influence of patient facial region's projection attractive in appearance；The diameter range of maintenance wing plate upper bolt aperture is 1.5~2.0mm,
Both the retention intensity of screw had been can guarantee that, good maintenance is served to fossa glenoid prosthese, will not also cause side maintenance
Wing plate self-strength is remarkably decreased；The shape and size of top bump on the prominent support face top surface of condyle, with trouble
The depression form matching of person's articular fossa of temporal bone, makes the prominent support face top surface of condyle and temporomandibular joint noodles
Realize good laminating effect, it is to avoid during due to standard type fossa glenoid Using prosthesis, because of top bump shape
Mismatch, it is oversized or too small, when causing to fit with temporomandibular joint nest, patient's temporomandibular joint is closed
The trauma damage that section noodles region is caused, or laminating imprecision, the problem of existing compared with big gap；Condyle is dashed forward
Support face thickness >=4mm design ensure that the strength and stiffness of prosthetic joint nest nest body；The prominent support face of condyle
Top planes width is matched with temporomandibular joint nest width, and variable range is 12~15mm, and this is personalized
Width design, it is to avoid lower condyle protruding head stress point changes caused by top planes width is too small, with
And it is likely to result in the damage to patient's basis cranii blood vessel, nerve because top planes are wide；The bottom in the prominent support face of condyle
Facial planes width is matched with the condyle protruding head size that bottom is wrapped up, and this personalized width design is avoided and lower condyle
Protruding head size mismatch caused by condyle protruding head zone of action it is too small or excessive, while variable range be 14~
20mm is to count gained based on anatomical data；The baffle design of support face bottom fore-and-aft direction, 5mm's
Height of baffle plate prevents condyle protruding head from producing dislocation in motion enough, and 3mm Weir Plate Thickness can then ensure baffle plate
Strength and stiffness demand.
Brief description of the drawings
Fig. 1 is the front schematic view of personalized articular fossa of temporal bone prosthese provided in an embodiment of the present invention；
Fig. 2 is the schematic rear view of personalized articular fossa of temporal bone prosthese provided in an embodiment of the present invention；
Fig. 3 is the top schematic diagram of personalized articular fossa of temporal bone prosthese provided in an embodiment of the present invention；
Fig. 4 is the side schematic view of personalized articular fossa of temporal bone prosthese provided in an embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and in conjunction with specific embodiments, the present invention is described in further detail.
Accompanying drawing is refer to, articular fossa of temporal bone prosthese includes outside maintenance wing plate 1 and the prominent support face 2 of condyle, outside
The medial surface of maintenance wing plate 1 is fitted maintenance with patient's zygomatic arch lateral surface, the lower edge of outside maintenance wing plate with condyle is prominent holds
Support 2 is connected as one, and has a top bump 3 on the top surface in the prominent support face of condyle, the top bump 3 is located at
The medial surface direction of outside maintenance wing plate 1, the top surface in the prominent support face 2 of the condyle with top bump 3 and patient
Articular fossa of temporal bone is fitted, and the bottom surface in the prominent support face 2 of condyle is fitted in the form of wrapping up with lower condyle protruding head.
More specifically, the medial surface of outside maintenance wing plate 1 fits with patient's zygomatic arch lateral surface, with screw
Form through multiple screw holes 4 on maintenance wing plate is fixed on the outside of patient's zygomatic arch, so as to whole joint
Nest prosthese plays maintenance, upper limb of the upper limb without departing from patient's zygomatic arch bone region of outside maintenance wing plate 1,
Lower edge is integrally connected with the prominent support face 2 of condyle, and outside maintenance wing plate 1 is overall to be erected in the prominent support face 2 of condyle
The edge of top surface；With a top bump 3 swelled upwards on the top surface in the prominent support face 2 of condyle, the top is convex
The 3 medial surface directions for being located at outside maintenance wing plate 1 are played, for the depression form with temporomandibular joint nest
Matching, and the top surface in the prominent support face 2 of the condyle with top bump 3 can be tight with temporomandibular joint noodles
It is closely connected to close；The dash forward bottom surface in support face 2 of condyle is the oval spherical designs that cave inward, and the bottom surface is to wrap up
Form be connected with condyle protruding head downwards；The bottom surface in the prominent support face 2 of condyle, along before the direction of outside maintenance wing plate 1
Two ends are respectively equipped with one piece of baffle plate extended downwardly 5 afterwards, for preventing condyle protruding head when condyle dashes forward support in-plane moving
Situation about may dislocate.
At least one in the rough pattern of the length of outside maintenance wing plate, height and medial surface is according to patient's
Zygomatic arch structure matching includes：By the measurement of the zygomatic arch to patient, the zygomatic arch structured data of patient, bag are obtained
Include：The zygomatic arch length of patient, zygomatic arch height and at least one in the rough pattern on zygomatic arch lateral surface surface.
It can be measured according to CT (Computed Tomography, CT scan) mode,
Obtain the zygomatic arch structured data of patient so that according to the structured data of patient's zygomatic arch, personalization make carry with
The individual character of patient's zygomatic arch length, either the outside maintenance wing plate of the rough pattern matching of height or lateral surface
Change fossa glenoid prosthese.
As an alternative, the articular fossa of temporal bone prosthese in the embodiment of the present invention is by high-molecular polythene
Material integration machine-shaping.High-molecular polythene material ensure that the demand of the strength and stiffness of the prosthese,
Integrated molding eliminates the destabilizing factors such as the relative movement that may occur between each functional part of prosthese.
Optionally, the length of outside maintenance wing plate is according to measured patient's zygomatic arch length matched design, simultaneously
According to anatomical data count and wing plate on for fixed screw hole number and screw diametric requirements, Gu
The length selectable range of position wing plate is 20~30mm.The maintenance wing plate matched with patient's zygomatic arch length,
While obtaining good retention effect, it is to avoid to patient's zygomatic arch surrounding tissue caused by wing plate length is long
Injury, be more beneficial for the growth healing of patient postoperative zygomatic arch front and rear sides tissue muscle.
Optionally, the height of outside maintenance wing plate is designed according to measured patient's zygomatic arch matched, wing plate
Upper limb is counted, Chinese's zygomatic arch is most narrow without departing from the bone region upper limb of patient's zygomatic arch according to anatomical data
The average height at place is 6mm, and to be distributed in 5~8mm zygomatic arch altitude information interval more, thus in the present invention
The zygomatic arch height selectable range of property matched design should be 5~8mm, with consolidating that patient's zygomatic arch highly matches
Position wing plate, while good retention effect is obtained, it is to avoid because wing plate upper limb is beyond patient's zygomatic arch bone
Compressing and infringement of the region upper limb to musculature above patient's zygomatic arch, are more beneficial for above the postoperative zygomatic arch of patient
The growth healing of tissue.
Optionally, the rough pattern of the medial surface of outside maintenance wing plate is according to the patient's zygomatic arch outer surface measured
Concaveconvex structure is matched, at patient's zygomatic arch outer surface most protrusion, and the thickness value of outside maintenance wing plate is minimum；
Patient's zygomatic arch outer surface most recess, the thickness value of outside maintenance wing plate is maximum；The thickness value of wing plate according to
Patient's zygomatic arch lateral surface depression in the surface degree and change, scope be 1.5~3.5mm.Wherein, wing plate thickness
Minimum value is set as that 1.5mm ensure that the strength and stiffness requirement of wing plate itself, and maximum thickness 3.5mm is protected
Demonstrate,proved will not because wing plate it is blocked up influence patient muscle growth and caused by patient facial region's projection influence it is attractive in appearance, this
Plant and the maintenance wing plate that personalized thickness is designed is carried out according to patient's zygomatic arch outer surface concaveconvex structure, solve existing
The side maintenance wing plate for having fixed thickness in technology fitted with patient's zygomatic arch maintenance when, because of patient's zygomatic arch lateral surface table
The problem of face is has gap after bad, laminating of being fitted caused by out-of-flatness rough pattern, effectively increases outer
Stability after side maintenance wing plate and zygomatic arch maintenance, and ensure that the intensity of wing plate without produced in art because
The problems such as prizing and the prothesis dislocation triggered, extend the service life of articular fossa of temporal bone prosthese in the present invention.
Those skilled in the art know, the outside maintenance wing plate of articular fossa of temporal bone prosthese in the embodiment of the present invention
Can be according to any one in the above-mentioned three kinds modes matched, two or three, the zygomatic arch structure with patient
Matching.
Optionally, multiple screw holes, the shape that screw hole is interlocked with single row or multiple rows are carried on outside maintenance wing plate
Formula is arranged, and screw hole diameter range is 1.5~2.0mm, and maintenance wing plate passes through above-mentioned screw by using screw
Hole is connected with patient's zygomatic arch, screw bore dia 1.5mm~2.0, both can guarantee that screw retention intensity,
Good maintenance is served to fossa glenoid prosthese, will not also cause being remarkably decreased for side maintenance wing plate self-strength.
Optionally, the shape and size of the top bump on the prominent support face top surface of condyle, are closed according to patient's temporomandibular joint
The depression form matching of nest is saved, the prominent support face top surface of condyle is realized with temporomandibular joint noodles good,
Tight laminating effect, it is to avoid during due to standard type fossa glenoid Using prosthesis, top bump shape is mismatched,
It is oversized or too small patient articular's nest region is caused when causing to fit with temporomandibular joint noodles
Trauma damage produces laminating imprecision, the problem of existing after laminating compared with big gap.
Optionally, the bottom surface in the prominent support face of condyle is oval spherical, the thickness in support face caved inward
>=4mm, support face connects downwards lower condyle protruding head in the form of wrapping up.When normal adult human is engaged, temporomandibular joint
The strength that fossa glenoid region is born is up to 200~300N, support face thickness >=4mm design, it is ensured that close
Section nest prosthese is not susceptible to fracture when bearing snap-in force.
Optionally, the top planes width in the prominent support face of condyle is matched with temporomandibular joint nest width, variable
Change scope is 12~15mm, this personalized width design, it is to avoid under caused by top planes width is too small
Portion's condyle protruding head stress point changes, and because top planes are wide may be to temporomandibular joint nest area
The blood vessel and nerve in domain cause damage.
Optionally, the base plane width in the prominent support face of condyle is matched with the condyle protruding head size that bottom is wrapped up, this
Property width design avoid with lower condyle protruding head size mismatch caused by condyle protruding head zone of action it is too small or
It is excessive, while it is to count gained based on anatomical data that variable range, which is 14~20mm,.
Optionally, the prominent support face bottom fore-and-aft direction of condyle, what each setting one was extended downwardly along support face bottom surface
Baffle plate, to prevent condyle protruding head from producing dislocation in support in-plane moving, the height of baffle plate is designed as 5mm,
Thickness is designed as 3mm, and 5mm height of baffle plate prevents condyle protruding head from producing dislocation, 3mm in motion enough
Weir Plate Thickness can then ensure the strength and stiffness demand of baffle plate.
The optional technical scheme of the above, can be independent or any number of, and patient's cheekbone is matched with outside maintenance wing plate
Bend the technical scheme common implementing of structure, if the optional technical scheme of all of the above is matched with outside maintenance wing plate
The technical scheme common implementing of patient's zygomatic arch structure, is up to the best implementation result of the present invention.
Following examples are the real case in clinical process.It is to the data measured by patient's zygomatic arch：Zygomatic arch
Length 28mm, zygomatic arch bone region height is 6mm, and the configuration of surface of patient's zygomatic arch lateral surface is most to be recessed
Place at most protrusion with differing 1mm.Then in the present embodiment, the outside wing plate of personalized articular fossa of temporal bone prosthese
Length is 28mm, is highly 6mm, and thickness range is 2~3mm, and wherein patient's zygomatic arch surface is most protruded
Place, wing plate has minimum thickness 2mm, and patient's zygomatic arch surface most recess, wing plate has maximum gauge 3mm, the wing
There is single 5 screw holes, a diameter of 2mm of screw hole on plate, bolts through bolt holes make wing plate and trouble
Person's zygomatic arch is connected maintenance, and shape and size and the patient's temporomandibular joint of the top bump that condyle is dashed forward on the top surface of support face are closed
The depression form matching of nest is saved, the thinnest part thickness in the prominent support face of condyle is designed as 4.5mm, the prominent support face top of condyle
Face width is matched with the articular fossa of temporal bone width of patient, is 13mm, and the prominent support face bottom width of condyle is dashed forward with condyle
Area of bed is matched, and is that rear is high upwards with two pieces of baffle plates extended downwardly in face of 19mm, the prominent support of condyle
5mm, thick 3mm.
The articular fossa of temporal bone prosthese provided in the embodiment of the present invention, because of outside maintenance wing plate and patient's zygomatic arch
Individualized fit, significantly reduce in surgical procedure and the bone of patient's zygomatic arch be ground, it is to avoid standard
Wound and bother that the dimensional problem of type prosthese maintenance wing plate is brought to patient's zygomatic arch and surrounding tissue, while its
The stability of maintenance is better than standard type fossa glenoid prosthese；The functional part and condyle of articular fossa of temporal bone prosthese are prominent to be held
The top surface width and bottom width of support, the position being mutually connected therewith all in accordance with patient are matched, it is to avoid condyle is dashed forward
The infringement of support face top surface and bottom surface to junction and tissue above and below the fossa glenoid prosthese of patient；Condyle is dashed forward support
Top bump on the top surface of face is matched according to temporomandibular joint Correct Hollow of The Eye Socket form, condyle is dashed forward support face top surface
With temporomandibular joint noodles it can realize good, tight effect of fitting, it is to avoid because standard type is closed
Save nest Using prosthesis when, top bump shape mismatch, it is oversized or it is too small cause and patient's temporomandibular joint close
The trauma damage that is caused to temporomandibular joint nest region during section noodles laminating, or cause laminating imprecision,
The problem of existing after laminating compared with big gap.
The articular fossa of temporal bone prosthese provided in the embodiment of the present invention, is reducing implantation fossa glenoid prosthese to patient
While fossa glenoid surrounding tissue is damaged, the stability of fossa glenoid prosthese is improved, remporomandibular joint is extended
The service life of nest prosthese, improves the adventure in daily life that patient uses articular fossa of temporal bone prosthese.
Described above is only the preferred embodiment of the present invention, does not constitute the limitation to technical solution of the present invention.
Claims (13)
1. a kind of articular fossa of temporal bone prosthese, it is characterised in that the articular fossa of temporal bone prosthese includes outside
Maintenance wing plate and condyle are dashed forward support face, and the outside maintenance wing plate medial surface is fitted maintenance with patient's zygomatic arch lateral surface,
The lower edge of the outside maintenance wing plate is connected as one with the prominent support face of the condyle, the top in the prominent support face of the condyle
There is a top bump on face, the top bump is located at the medial surface direction of the outside maintenance wing plate, band
The top surface for having the prominent support face of the condyle of the top bump is fitted with temporomandibular joint nest, and the condyle is dashed forward
The bottom surface in support face is fitted in the form of wrapping up with lower condyle protruding head, length, the height of the outside maintenance wing plate
With zygomatic arch structure matching of at least one in the rough pattern of medial surface according to patient.
2. articular fossa of temporal bone prosthese according to claim 1, it is characterised in that the outside maintenance
At least one in the rough pattern of the length of wing plate, height and medial surface is according to the zygomatic arch structure matching of patient
Including：By the measurement of the zygomatic arch to patient, the zygomatic arch structured data of patient is obtained, including：The cheekbone of patient
Length of bow's degree, zygomatic arch height and at least one in the rough pattern on zygomatic arch lateral surface surface.
3. articular fossa of temporal bone prosthese according to any one of claim 1 to 2, it is characterised in that
The articular fossa of temporal bone prosthese is by the integrated machine-shaping of high-molecular polythene material.
4. articular fossa of temporal bone prosthese according to any one of claim 1 to 3, it is characterised in that
The length of the outside maintenance wing plate is matched according to patient's zygomatic arch length, and scope is 20~30mm.
5. articular fossa of temporal bone prosthese according to any one of claim 1 to 4, it is characterised in that
The height of the outside maintenance wing plate is according to patient's zygomatic arch matched, and scope is 5~8mm.
6. articular fossa of temporal bone prosthese according to any one of claim 1 to 5, it is characterised in that
The rough pattern of the medial surface of the outside maintenance wing plate according to the zygomatic arch structure matching of patient, including：It is described
The rough pattern of the medial surface of outside maintenance wing plate and the rough pattern on patient's zygomatic arch lateral surface surface match.
7. articular fossa of temporal bone prosthese according to claim 6, it is characterised in that patient's zygomatic arch
At the most protrusion of lateral surface surface, the thickness value of the outside maintenance wing plate is minimum；Patient's zygomatic arch lateral surface
Surface most recess, the thickness value of the outside maintenance wing plate is maximum；The thickness value of the outside maintenance wing plate
Changed according to the sinking degree of patient's zygomatic arch lateral surface with zygomatic arch form of fitting completely, thickness range is
1.5~3.5mm.
8. articular fossa of temporal bone prosthese according to any one of claim 1 to 7, it is characterised in that
There are multiple screw holes on the outside maintenance wing plate, the screw hole is arranged in the form of single row or multiple rows are interlocked,
Diameter range is 1.5~2.0mm, and the outside maintenance wing plate passes through the screw hole and patient's cheekbone by screw
Bow is connected.
9. articular fossa of temporal bone prosthese according to any one of claim 1 to 8, it is characterised in that
The shape and size of the top bump on the prominent support face top surface of the condyle, according to temporomandibular joint nest
Depression form matching.
10. articular fossa of temporal bone prosthese according to any one of claim 1 to 9, it is characterised in that
The condyle dash forward support face bottom surface for one cave inward it is oval spherical, minimum thickness is 4mm, with parcel
Form connect lower condyle protruding head downwards.
11. articular fossa of temporal bone prosthese according to any one of claim 1 to 10, it is characterised in that
The dash forward top planes width in support face of the condyle is matched with the width of temporomandibular joint nest, scope for 12~
15mm。
12. the articular fossa of temporal bone prosthese according to any one of claim 1 to 11, it is characterised in that
The base plane width in the prominent support face of the condyle is matched with lower condyle protruding head size, and scope is 14~20mm.
13. the articular fossa of temporal bone prosthese according to any one of claim 1 to 12, it is characterised in that
The bottom in the prominent support face of the condyle is respectively arranged in the front and the rear with one piece of baffle plate extended downwardly, and the height of the baffle plate is
5mm, thickness is 3mm.
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Cited By (1)
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| CN116492114A (en) * | 2022-03-18 | 2023-07-28 | 上海交通大学医学院附属第九人民医院 | Skull base joint fossa prosthesis, construction method thereof and preparation method thereof |
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