CN104382640A - Joint cavity area anatomy locking internal fixation instrument - Google Patents
Joint cavity area anatomy locking internal fixation instrument Download PDFInfo
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- CN104382640A CN104382640A CN201410670692.0A CN201410670692A CN104382640A CN 104382640 A CN104382640 A CN 104382640A CN 201410670692 A CN201410670692 A CN 201410670692A CN 104382640 A CN104382640 A CN 104382640A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
- A61B17/8038—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers the additional component being inserted in the screw head
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
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Abstract
Disclosed is a joint cavity area anatomy locking internal fixation instrument. The joint cavity area anatomy locking internal fixation instrument is an integral bone connection steel plate made of memory alloy, wherein the integral bone connection steel plate is divided into two portions of a shoulder blade lateral border portion and a joint cavity portion which are arranged in a Y shape, and the joint cavity portion is provided with two encircling wings according to the physiological anatomy shape of a joint cavity. The joint cavity area anatomy locking internal fixation instrument is suitable for a shoulder blade joint cavity fracture, and can stereoscopically fix a shoulder blade lateral border portion and a joint cavity portion of a human body together in connection mod. The joint cavity area anatomy locking internal fixation instrument is made of memory alloy, and good in elasticity and intensity, and further can optionally perform treatment of bending, twisting, cutting and the like according to fixation needs of fracture surgery. Additionally, the joint cavity area anatomy locking internal fixation instrument facilitates molding and installation, greatly enhances stability, does not need external fixation after the fracture surgery, facilitates early functional exercise of shoulder joints, and prevents postoperative joint stiffness. The joint cavity area anatomy locking internal fixation instrument can improve curative effect and decrease the number of complications, simplifies complex surgical operations, reduces surgical risk, and is worthy of popularization.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of apparatus of internal fixtion for glenoid cavity district fracture taking memorial alloy as material and make.
Background technology
Along with economic development, the industry such as traffic, building is flourishing, and fracture of scapula is day by day common in recent years, accounts for 3% ~ 5% of shoulder fractures, and close to 1% of whole body fracture, the most common is body fracture, is secondly fractures of neck.Previously it has been generally acknowledged that and mostly can obtain good efficacy through expectant treatment.But a lot of scholar's retrospective study finds that expectant treatment can remain many sequela.Ada and Miller is by finding 113 routine retrospective studies, the neck of scapula of displacement and fracture of spina scapula patient is had to occur obvious dysfunction, residual pain is 50% ~ 100%, miopragia accounts for 40% ~ 60%, pain companion dysfunction 20% ~ 66%, and the firm internal fixtion of 8 routine operative reduction, early functional exercise, obtains satisfactory effect.Nordgvist and Petersson reports the patient of 68 routine expectant treatments, mostly has that shoulder is light, the afunction of moderate, the wherein residual omoplates deformity of 15 example and shoulder symptoms, and lay special stress on fracture of the neck of the scapula weak curative effect.Increasing scholar has been familiar with the importance of surgical operation therapy.Along with patient required day by day to improve to quality of life, after fracture, good functional rehabilitation becomes the emphasis that patient pays close attention to.Want to obtain good functional rehabilitation, except for except surgical indication, more and more tend to adopt operative treatment, object is all resume stability.
Scapula is one piece of irregular triangle flat bone, before slightly recessed, point two face three edge.Neck of scapula is narrow, and sclerotin is weak, and easily fracture, its stability relies on the integrity of three posts, if fracture is failed to pinpoint a disease in diagnosis, easily causes malunion of fracture, glenohumeral instability can be caused to determine or dislocation.Scapula is a part for shoulder suspention complex, connects upper limb and axial bone, has to enrich muscle and hold around it, is also starting point and the attachment point of polylith muscle.Accurate Diagnosis fracture of scapula, has important value to selection therapeutic scheme and the prognosis of the assessment state of an illness.Because scapula taxonomic hierarchies is comparatively complicated, there is no unified criteria for classification at present.Common sorting technique has Hardegger typing, Mille typing and international internal fixtion EASD (AO)/bone wound orthopaedics association of the U.S. (OTA) typing.Hardegger typing: specifically can be subdivided into fracture of scapular body, Scapula glenoid edge fracture, Scapula glenoid nest fracture, anatomical neck fracture, fracture of surgical neck, acromion fracture, fracture of spina scapula and fracture of coracoid process of scapula.Current most scholar thinks to the fracture of scapula especially positive operative treatment of some serious displacement type fracture of scapula row, and the shoulder dysfunction that can to a certain degree exempting expectant treatment and cause, is more conducive to its functional rehabilitation.For there being the scapula glenoid cavity of displaced to fracture, previously conventional employing expectant treatment, usually causes traumatic arthritis, pain, the serious sequela such as limitation of activity; Adopt open reduction and Kirschner wire fixation, because topography is complicated, wound is large, surgical technic requires high, post-operative recovery is also difficult to reach ideal effect.Chinese scholars is had to be fractured and acromioclavicular joint dislocation by the scapula glenoid cavity of minimal invasive operation displaced in the recent period, respond well.Fracture of scapula more after, depend on the one hand the degree of injury of fracture, on the other hand and operation well reset and be fixed with substantial connection.Just when coming to see, the material category selected of internal fixation treatment is many, reconstruction plate, T steel plate, deformed steel flats, calcaneal steel plate and Kirschner wire, steel wire, Absorbable rod and nonabsorable screw.The geometric shape of scapula is very irregular, and anatomical position compared with dark, attachment muscle is many, therefore, has the probability of raw nonunion more occurred frequently; Moreover internal fixation material need be considered to bear unnecessary misery to exempt patient's Repeated Operation from the permanent angle inserted as far as possible.Comprehensive two aspect factors are considered, titanium alloy material is not only the metal with higher inertia, and plasticity is very strong, there is good biocompatibility, both can reduce thus insert rear to tissue produce too much pessimal stimulation, again can be fully moulding to guarantee to produce with scapula to stick effect preferably, and can for producing separation stresses when effectively resisting shoulder mobility and shear stress provides sufficient constant intensity.
Current open source literature also reports the internal fixation device of some scapulas, and through retrieval, we take passages as follows:
1, Chinese patent, title: a kind of Scapula anatomize type steel plate (the statutory status day for announcing: 2007.11.21 statutory status: the termination cessation of patent right due to non-payment of the annual fee of patent right).Application Number (patent): CN200420089952.7, application (patent right) people: Chen Lijun; Invention (design) people: Chen Lijun.Address: MP major path Cixi City second the People's Hospital, Guangcheng town, Cixi City of Zhejiang Province orthopaedics.Summary: a kind of Scapula anatomize type steel plate, relates to a kind of internal fixation steel plate being used for the treatment of fracture of scapula.Its steel plate is thin plate, and the dissect physiology shape of plate profile and scapula adapts, and this steel plate form is connected as two T steel plates, can respectively axillary margin of scapula, and Scapula glenoid, spine of scapula solid is fixed together.Steel plate is plane before using, and can carry out moulding according to scapula profile, steel plate is designed with multiple screw fixed hole and a screw secured adjusted hole during use.Steel plate adopts titanium matter steel plate, thin and have elasticity, and intensity is good, close to flexible bone modulus, settles in easy Rhizoma Atractylodis Macrocephalae, needs steel plate bending, to reverse according to scapula profile, the process such as to wipe out.
2. Chinese patent, title: elastic nickle-titanium alloy fixer for acromioclavicular (the statutory status day for announcing: 2006.07.05 statutory status: the termination cessation of patent right due to non-payment of the annual fee of patent right), Application Number (patent): CN02217424.9, the applying date: 2002.05.15, application (patent right) people: Zhang Desheng; Xu Shuogui; Invention (design) people: Zhang Desheng; Xu Shuogui.Address: Room 601, No. 25, Yangpu district of Shanghai Huan Sha six village.Summary: this utility model relates to a kind of elastic nickle-titanium alloy fixer for acromioclavicular, comprises blade plate, it is characterized in that: there are the acromion hook of semicircular in shape, the opening upwards of acromion hook in a top of blade plate, blade plate has and has at least three groups to encircle arm.The utility model has the advantages that the anatomical position that can maintain acromioclavicular joint, imposing acromioclavicular joint can elastic active persistent pressure, ensures that the fine motion physiological function of acromioclavicular joint is unrestricted, promotes the healing of acromioclavicular joint dislocation and dislocation companion distal clavicle fracture.
3. Chinese patent, title: y shape acromioclavicular joint dissects fixing head (the statutory status day for announcing: 2010.11.10 statutory status: the termination of patent right), Application Number (patent): CN200820026574.6, the applying date: 2008.08.01, application (patent right) people: Shi Jie; Invention (design) people: Shi Jie; Yang Ruifang; Chen Yujin; Sun Qiyun.Address: No. 216 Taierzhuang Districts, Wenhua road, Taierzhuang District, Zaozhuang City of Shandong Province Tuberculosis Control Institute digest: a kind of y shape acromioclavicular joint of good fixing effect dissects fixing head, comprise plate body, plate has screw nail with it, plate is as " y " shape, plate body is two crossing plate arms, two plate arm tops are all connected with crotch, crotch have screw nail, crotch and plate arm perpendicular.This utility model meets acromioclavicular joint anatomic form, meets biological fixation principle, easy and simple to handle, and fixed effect is definitely reliable, and energy early functional exercise, reaches functional rehabilitation to greatest extent.
Above-mentioned disclosed document can solve some problems of fracture of scapula, but the shortcoming existed has: apparatus structure is too simple, failing other positions close with fracture of scapula position locks mutually, and it is insecure that apparatus is fixed on fracture site, and therapeutic effect is undesirable then; And some structures are too complicated, complicated and loaded down with trivial details in operative process, practicality is strong, and what really should use is few.Meanwhile, similar scapula is dissected in internal fixation device research and development at home, the open source literature report of dissecting locking internal fixation device in order to processus coracoideus district made there are no adopting memorial alloy.
In sum, fracture of scapula and pathological changes are day by day common multiple, the complicated fracture of scapula incidence rate caused by the violence of the high-energy such as vehicle accident and building accident in recent years increases gradually, shoulder joint deformity, limitation of activity is caused after expectant treatment, shoulder pain etc., affect suffering limb function and quality of life.Tend to implement surgical menopause treatment to intraarticular and the serious fracture of scapula that is shifted.Because this position is irregular and anatomical structure complicated, surgical technic difficulty is large, risk is high, and operating theater instruments and operation method quality directly can affect therapeutic effect.The traditional operation mode of current employing and apparatus can solve some problems, but the shortcoming existed is that therapeutic effect is not satisfactory, and some the new apparatus practicality once occurred are not strong, are therefore difficult to promote the use.
The dissection internal fixation device that current shortage and scapula match and increase operation technique difficulty and directly affect therapeutic effect.Along with the developing rapidly of studying such as Preclinic and clinic, material science, biomechanics and internal fixation system is updated, new Therapeutic Method, treatment technology continue to bring out, and are in the constantly progressive stage.We are necessary to carry out the basic research such as Systematic anatomy to scapula, and the personalized internal fixation device of dissecting of research and development is that this district's internal fixation treatment improves new and practical method.
Summary of the invention
Object of the present invention is exactly overcome the existing deficiency being applied to fracture of scapula internal fixation device, and provide brand-new a kind of take memorial alloy as the apparatus of the internal fixtion for glenoid cavity district fracture that material is made.This apparatus is one piece of overall bone-fracture fixation steel plate, and this block plate is divided into again axillary margin of scapula portion and glenoid cavity portion two parts, and its physique structure is in " Y " font; Wherein, glenoid cavity portion part glenoid dissect physiology profile is provided with two encircle the wing; Be applicable to the internal fixtion medical apparatus and instruments needed for scapula glenoid cavity fracture.Its shape designs according to glenoid cavity portion dissect physiology shape, respectively axillary margin of scapula portion can be connected solid with glenoid cavity portion and be fixed together.The present invention is made up of memorial alloy, elasticity and intensity good, also arbitrarily can need to do the process such as bending, torsion, shearing according to fracture operation is fixing.In addition, the present invention is more convenient for moulding with installation, and stability strengthens greatly, postoperative without the need to extenal fixation, is convenient to shoulder joint early functional exercise, prevention of postoperative ankylosis.Application the present invention can improve curative effect and reduce complication, complicated operation simple operation, reduces operation risk, be worthy to be popularized.
The present invention is achieved through the following technical solutions:
1, the apparatus of locking internal fixtion is dissected in a kind of glenoid cavity district, be in technical scheme: this apparatus is one piece of overall bone-fracture fixation steel plate, this block plate is divided into again axillary margin of scapula portion (1) and glenoid cavity portion (2) two parts, and its physique structure is in " Y " font; Wherein, glenoid cavity portion (2) part glenoid dissect physiology profile is provided with two encircle the wing (3); In axillary margin of scapula portion (1), glenoid cavity portion (2) connecting portion is provided with screw secured adjusted hole (4); Axillary margin of scapula portion (1) and glenoid cavity portion (2) are provided with several screw lock holes (5) along bone-fracture fixation steel plate center all respectively, and screw lock hole (5) is provided with screw thread.
2, described bone-fracture fixation steel plate is by can the Nickel-titanium alloy for medical purpose of implant into body be prepared from.
Tool of the present invention has the following advantages and brings many beneficial effects:
What 1, the present invention formed is scientific and reasonable for structure, and during application, measure is unique, Be very effective.
2, the present invention take memorial alloy as material, and its structure is one piece of overall bone-fracture fixation steel plate, and this block plate is divided into axillary margin of scapula portion and two, glenoid cavity portion part.Its shape is dissected profile according to the physiological structure in axillary margin of scapula portion and glenoid cavity portion and designs, and axillary margin of scapula portion can be connected solid with glenoid cavity portion simultaneously be fixed together.With the steel plate that memorial alloy is made, elasticity and intensity good, also arbitrarily can fix needs according to fracture operation, can bend, reverse, the process such as shearing.The element particularly also having incorporated locking internal fixtion and fracture with memory alloy embrace fixator strengthens stable and firm, adopt marmem to make to be more convenient for moulding with installation, the more important thing is that associating memorial alloy is encircled fixing design and made fixing more firm, stability strengthens greatly.Assisting outward without the need to steel plate uses screw to reach firmly fixing, postoperative without the need to extenal fixation, is convenient to shoulder joint early functional exercise, prevention of postoperative ankylosis.
3, the present invention is the shape by being designed to glenoid cavity portion to encircle arm, convenient operation, is easy to firmly encircle effectively prevent from getting loose.
4, in the present invention set in respect of female thread lock hole match with lock screw, locking is fixing firmly not to be occurred loosening afterwards.
The device system of the dissection locking internal fixtion 5, in axillary margin of scapula portion of the present invention and glenoid cavity portion all designs according to the dissect physiology of human body, and matching degree is high, without the need to bending repeatedly, easy to operation.
6, for the case of unstable fracture having the positions such as scapula comminuted fracture, clavicle distal portion, spine of scapula portion and scapula acromion portion, current internal fixation material is all failed a scapula each position internal fixtion and is regarded entirety simultaneously as and consider, usually needs auxiliaryly to use screw or Kirschner wire after using steel plate.Because the constant intensity of use steel plate male screw thread is obviously weaker than the intensity through steel plate screw.The present invention's design overcomes the shortcoming of current internal fixtion, the element simultaneously also having incorporated locking internal fixtion and fracture with memory alloy embrace fixator strengthens stable and firm, adopt marmem to make to be more convenient for moulding with installation, the more important thing is that associating memorial alloy is encircled fixing design and made fixing more firm, stability strengthens greatly.
7, device system material of the present invention is memorial alloy composition, and memorial alloy feature is low temperature flow, any bending of deliquescing during cooling, and it is strong fixing to recover warm rear recovery; Utilize memorial alloy feature, be convenient to moulding for each position rear installation, particularly glenoid cavity portion encircles arm opening installation, installs rear immersion warm water rewarming and can make and encircle arm and firmly encircle and not easily get loose.
8, apply the present invention, needing fixing position to complete internal fixation operation by exposing, simplifying operation, reducing operation risk.
9, the titanium alloy material histocompatibility that the present invention is used is good, and reaction is few, can reduce infection rate.Meanwhile, the advantage of designed memorial alloy composition can be given full play to, complicated operation is become simple installation process, simplify operation, shorten operating time, greatly reduce operation risk, very easily to each clinical application, and there are larger practical value and wide application prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In Fig. 1: 1 is axillary margin of scapula portion, 2 is glenoid cavity portions, 3 is that two of arranging according to glenoid physiological anatomic architecture profile encircle the wing, and 4 is the screw secured adjusted holes be provided with in axillary margin of scapula portion, and 5 is hit exactly along bone-fracture fixation steel plate the screw lock hole be provided with respectively.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
The present invention is one piece of overall bone-fracture fixation steel plate, and this block plate is divided into again axillary margin of scapula portion (1) and glenoid cavity portion (2) two parts.
Shown in Fig. 1 is structural representation of the present invention.Wherein, 1 is axillary margin of scapula portion (1), 2 is glenoid cavity portion (2), 3 is that set by glenoid dissect physiology profile two encircle the wing (3), 4 is the screw secured adjusted holes (4) arranged with glenoid cavity portion (2) connecting portion in axillary margin of scapula portion (1), and 5 is hit exactly along bone-fracture fixation steel plate the screw lock hole (5) be provided with respectively.
Below with reference to accompanying drawing, clear, complete description is carried out to technical scheme of the present invention.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the present invention protects.
Embodiment 1:
Dissecting the apparatus of locking internal fixtion for glenoid cavity district, is one piece of overall bone-fracture fixation steel plate, and this block bone-fracture fixation steel plate is by can the Nickel-titanium alloy for medical purpose of implant into body be prepared from.Described marmem is can the Nickel-titanium alloy for medical purpose of implant into body, and the weight ratio of Ti: Ni is 1: 1.
Meanwhile, in preparation process, bone-fracture fixation steel plate is prepared into " Y " font; Wherein, glenoid cavity portion (2) part glenoid physiological anatomic architecture profile is provided with two encircle the wing (3); In axillary margin of scapula portion (1), glenoid cavity portion (2) connecting portion is provided with screw secured adjusted hole (4); Axillary margin of scapula portion (1) and glenoid cavity portion (2) are provided with several screw lock holes (5) along bone-fracture fixation steel plate center all respectively, and screw lock hole (5) is provided with the screw thread mated with lock screw.
Embodiment 2:
Dissect the apparatus of locking internal fixtion for glenoid cavity district, its physique structure is with embodiment 1.Wherein, product is that material is prepared from memorial alloy.And described marmem is can the Nickel-titanium alloy for medical purpose of implant into body, the weight ratio of Ti: Ni is 1: 1-1.2.
Embodiment 3:
Dissect the apparatus of locking internal fixtion for glenoid cavity district, its physique structure is with embodiment 2.Wherein, product is that material is prepared from memorial alloy.And described marmem is can the Nickel-titanium alloy for medical purpose of implant into body, the weight ratio of Ti: Ni is 1: 1-1.5.
Embodiment 4:
Dissect the apparatus of locking internal fixtion for glenoid cavity district, its physique structure is with embodiment 3.Product memory alloy material used be Ti: Ni weight ratio be 1: 1-1.2, also add the Cu of 0.2.
Embodiment 5:
Dissect the apparatus of locking internal fixtion for glenoid cavity district, its physique structure is with embodiment 4.Product shape memory alloy material used be Ti: Ni weight ratio be 1: 1-1.2, also add the Al of 0.1.
Embodiment 6:
Dissect the apparatus of locking internal fixtion for glenoid cavity district, its physique structure is with embodiment 5.Product shape memory alloy material used be Ti: Ni weight ratio be 1: 1-1.2, also add the Zn of 0.3.
In addition, various embodiment provided by the invention also can combine as required in any way mutually, the technical scheme obtained by this combination, also within the scope of the invention.
Meanwhile, those skilled in the art can carry out various change and modification to the present invention and not depart from characteristic sum scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention also comprises these change and modification.
Application Example of the present invention:
The present invention is in application process, and as shown in drawings, the present invention is prepared from according to the layout at two positions in axillary margin of scapula portion and glenoid cavity portion and physique structure, is reset with appearing fracture in Rhizoma Atractylodis Macrocephalae and use as internal fixtion.Wherein, axillary margin of scapula portion (1) shown in this internal fixation device, glenoid cavity portion (2), encircle the wing (3), screw secured adjusted hole (4) and screw lock hole (5), the function at each position is: axillary margin of scapula portion (1) is mounted to shoulder blade ridge portion's lateral border and fixes this position fracture, glenoid cavity portion (2) and encircle the wing (3) and install and encircle glenoid cavity portion thus by this position fracture fixation; Glenoid cavity portion (2) is provided with two according to glenoid dissect physiology profile to encircle the wing (3), and when monoblock steel plate is connected with glenoid cavity portion with axillary margin of scapula portion, the bone wound surface at steel plate and two positions also coincide in succession.Corresponding and above-mentioned axillary margin of scapula portion, each position of steel plate and glenoid cavity portion coincide and after fixing, enter in the screw lock hole (5) on steel plate with screw, each position steel plate has enough screw lock hole (5) fixing joint broad-mouthed receptacle for holding liquid portions and axillary margin of scapula place fracture, on lock screw and steel plate, lock hole mutually locks and namely fracture firm stable is fixed by steel plate.
The present invention, in application process, also can need steel plate bending, can to reverse according to scapula profile and different fracture fixation, the process such as to wipe out, forms the distinctive solid in this position and fix entity.
In addition, the element that the present invention has also incorporated locking internal fixtion and fracture with memory alloy embrace fixator strengthens stable and firm, adopt marmem to make to be more convenient for moulding with installation, the more important thing is that associating memorial alloy is encircled fixing design and made fixing more firm, stability strengthens greatly.Assisting outward without the need to steel plate uses screw to reach firmly fixing, postoperative without the need to extenal fixation, is convenient to shoulder joint early functional exercise, prevention of postoperative ankylosis.Titanium alloy material histocompatibility is good, and reaction is few, can reduce infection rate.Complicated operation simple operation, reduce operation risk, for position fracture operation internal fixtion such as various axillary margin of scapula portion and glenoid cavity portions, be worthy to be popularized.
Effect embodiment of the present invention
Effect embodiment 1, Liu, Tianyang County, Guangxi, workman, female, 21 years old, because high falling causes right glenoid cavity fracture, expectant treatment can not recover, and dissects the apparatus of locking internal fixtion, Operation internal fixtion through glenoid cavity district of the present invention on probation.Month after operation is fully recovered, and outward appearance is obviously improved.Follow-up After 1 year, check union of fracture, gets loose without internal fixtion and shoulder joint function recovers normal.
Effect embodiment 2, Zhang, people from Youjiang District, City: A Case Study in Baise, man, 36 years old, because traffic accident causes left glenoid cavity to fracture joint dislocation shoulder to shoulder, difficulty of taking care of oneself, dissects the apparatus of locking internal fixtion through glenoid cavity district of the present invention on probation, operative reduction is corrected and is implanted internal fixtion, fully recover after 1 first quarter moon, life can take care of oneself, and can recover normal work after half a year.Follow-up After 2 years, check union of fracture, gets loose without internal fixtion and shoulder joint function recovers normal.
Effect embodiment 3, Zhu, Nanning company personnel, man, 29 years old, because traffic accident causes doublejointed broad-mouthed receptacle for holding liquid to be fractured and acromioclavicular joint dislocation, dissect the apparatus of locking internal fixtion through glenoid cavity district of the present invention on probation, operative reduction is corrected and is implanted internal fixtion, fully recovers after 2 months, life can take care of oneself, and can recover normal work after half a year.Follow-up After 1 year half, check fracture heals completely, gets loose and shoulder joint function recovers normally without internal fixtion.
Claims (2)
1. the apparatus locking internal fixtion is dissected in a glenoid cavity district, it is characterized in that: this apparatus is one piece of overall bone-fracture fixation steel plate, this block plate is divided into again axillary margin of scapula portion (1) and glenoid cavity portion (2) two parts, and its physique structure is in " Y " font; Wherein, glenoid cavity portion (2) part glenoid physiological anatomic architecture profile is provided with two encircle the wing (3); In axillary margin of scapula portion (1), glenoid cavity portion (2) connecting portion is provided with disciform screw secured adjusted hole (4); Axillary margin of scapula portion (1) and glenoid cavity portion (2) are provided with several screw lock holes (5) along bone-fracture fixation steel plate center all respectively, and screw lock hole (5) is provided with screw thread.
2. the apparatus of locking internal fixtion is dissected in a kind of glenoid cavity district according to claim 1, it is characterized in that: described bone-fracture fixation steel plate is by can the Nickel-titanium alloy for medical purpose of implant into body be prepared from.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670692.0A CN104382640A (en) | 2014-11-21 | 2014-11-21 | Joint cavity area anatomy locking internal fixation instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410670692.0A CN104382640A (en) | 2014-11-21 | 2014-11-21 | Joint cavity area anatomy locking internal fixation instrument |
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| CN104382640A true CN104382640A (en) | 2015-03-04 |
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| CN201410670692.0A Pending CN104382640A (en) | 2014-11-21 | 2014-11-21 | Joint cavity area anatomy locking internal fixation instrument |
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