CN108742949A - The isometric reconstruction positioning system of the isometric class of anterior cruciate ligament - Google Patents
The isometric reconstruction positioning system of the isometric class of anterior cruciate ligament Download PDFInfo
- Publication number
- CN108742949A CN108742949A CN201810797999.5A CN201810797999A CN108742949A CN 108742949 A CN108742949 A CN 108742949A CN 201810797999 A CN201810797999 A CN 201810797999A CN 108742949 A CN108742949 A CN 108742949A
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- Prior art keywords
- isometric
- femur
- locator
- fixed link
- shin bone
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- 210000001264 anterior cruciate ligament Anatomy 0.000 title claims abstract description 26
- 210000002303 tibia Anatomy 0.000 claims abstract description 69
- 210000000689 upper leg Anatomy 0.000 claims abstract description 65
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 210000003041 ligament Anatomy 0.000 claims abstract description 24
- 238000005452 bending Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 238000004080 punching Methods 0.000 abstract description 4
- 108010048734 sclerotin Proteins 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 210000000629 knee joint Anatomy 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 241000219307 Atriplex rosea Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002224 dissection Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 208000005137 Joint instability Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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
- A61F2/08—Muscles; Tendons; Ligaments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0811—Fixation devices for tendons or ligaments
-
- 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
- A61F2/08—Muscles; Tendons; Ligaments
- A61F2/0811—Fixation devices for tendons or ligaments
- A61F2002/0876—Position of anchor in respect to the bone
- A61F2002/0882—Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone
Abstract
The present invention provides a kind of isometric reconstruction positioning systems of the isometric class of anterior cruciate ligament, including locator structure has measurement lead, include femur locator and ligament tibia locator in multiple locator structures；Femur locator is connected with ligament tibia locator by the measurement lead, and the both ends of lead along its length that measure are fastenedly connected or are slidably connected on corresponding locator structure respectively；Femur locator includes femur contact portion, and ligament tibia locator includes shin bone contact portion, and the measurement lead is on length extending direction by the femur contact portion and shin bone contact portion.After the present invention carries out the isometric positioning of isometric or class, it can directly be passed through Kirschner wire from femur guide pipe and shin bone guide pipe, complete the positioning in the punching orientation on femur and shin bone；In turn, low to sclerotin extent of injury without determining the isometric reconstruction tunnel of ligament by repeatedly punching in operation, and there is good guidance quality in drill process, operation is more convenient.
Description
Technical field
The present invention relates to medical instruments fields, and in particular, to a kind of isometric class of anterior cruciate ligament isometric reconstruction positioning system
System.
Background technology
Anterior cruciate ligament (anterior cruciate ligament, ACL) reconstruction operations are in nearly 30 years under arthroscope
Significant progress is obtained.The kneed process of bending and stretching is the compound motion for rolling and sliding, and track is an evolute, and
ACL is the important feature that knee joint is stablized, it has the kneed physiological movement of guidance concurrently and limits the dual of its non-physiological movement
Effect.ACL reconstructions at present are to restore acl feature by both ends osseous tunnel fixation implant, and intra-articular when joint motion
When the distance at fixed site end-end is Length discrepancy, there is situations such as graft relaxation in a certain range or graft tension, it can
Lead to the clinical symptoms such as limitation of activity, event trace change or joint instability.Therefore the anchor point of osseous tunnel is in ACL Reconstructions
It is no isometric most important.Multiple studies have shown that anterior cruciate ligament of knee joint dissection stop is during bending and stretching and non-fully equidistant
, normal anterior cruciate ligament is dual beam structure, and alternation is mutually assisted during bending and stretching.Thus the isometric reconstruction of physiology
Concept is suggested, i.e. graft length after ACL is rebuild keeps minimum variation (to be no more than 2-during knee joint is bent and stretched
3mm), i.e., tension keeps minimum variation, especially keeps tensioned in activity.The stock of graft minimum length variation can be reached
Bone and tibial tunnel internal orifice anchor point are known as isometric point.
To achieve the purpose that the isometric reconstruction of physiology, the positioning of the isometric point of femur and shin bone is most important.Generally recognize at present
Isometric point for, femur and non-specific site, but a region, the i.e. isometric region of class.Ligament in this area
Keep opposite isometric characteristic.However, at present can only be after reconstruction of anterior cruciate ligament fixation by measuring the isometric property of graft
To determine whether being isometric reconstruction, rather than isometric site is selected to be rebuild again in art, simultaneously because individual difference, so-called class
The isometric property of graft in isometric region is simultaneously non-ideal.Need to measure and find in art the instrument and method in isometric site.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of isometric rebuild of the isometric class of anterior cruciate ligament to determine
Position system.
According to the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament provided by the invention, including locator structure has measurement
Lead includes femur locator and ligament tibia locator in multiple locator structures；
Femur locator is connected with ligament tibia locator by the measurement lead, it is described measure lead along its length two
End is fastenedly connected or is slidably connected on corresponding locator structure respectively；
Femur locator includes femur contact portion, and ligament tibia locator includes shin bone contact portion, and the measurement lead is in length
By the femur contact portion and shin bone contact portion on extending direction.
Preferably, the femur locator includes fixed link and the outer fixed link of femoral joint, femoral joint in femoral joint
The both ends of interior fixed link in axial direction are respectively formed the first adjustment portion, femur contact portion；
First adjustment portion is slidably connected or is fastenedly connected outside femoral joint in fixed link.
Preferably, first adjustment portion is socketed in the outer fixed link of femoral joint, and first by setting adjusts spiral shell
Nail completes slide lock or the unlock of the opposite outer fixed link of femoral joint.
Preferably, the femur locator also includes femur guide pipe；
Wherein one end is integrally formed or is fastenedly connected with first to the outer fixed link of the femoral joint in both ends along its length
Pipe guide part；
The femur guide pipe is slidably mounted on the first pipe guide part, and completes phase by the second adjusting screw of setting
Slide lock to the first pipe guide part or unlock.
Preferably, the first tip duct and the first fixing screws are provided in the femur contact portion；
The measurement lead is threaded through in the first tip duct, and is relatively fixed in femur by first fixing screws
In contact portion；
The central axes extending direction of the femur guide pipe is directed toward femur contact portion.
Preferably, the ligament tibia locator includes fixed link and the outer fixed link of tibial prosthesis in tibial prosthesis；
Fixed link is respectively formed the second adjustment portion, shin bone contact portion along the both ends of length extending direction in tibial prosthesis；
Second adjustment portion is slidably connected or is fastenedly connected outside tibial prosthesis in fixed link.
Preferably, second adjustment portion is socketed in the outer fixed link of tibial prosthesis, and adjusts spiral shell by the third of setting
Nail completes slide lock or the unlock of the opposite outer fixed link of tibial prosthesis.
Preferably, the ligament tibia locator also includes shin bone guide pipe；
Wherein one end is integrally formed or is fastenedly connected with second to the outer fixed link of the tibial prosthesis in both ends along its length
Pipe guide part；
The shin bone guide pipe is slidably mounted on the second pipe guide part, and completes phase by the 4th adjusting screw of setting
Slide lock to two pipe guide parts or unlock；
The central axes extending direction of the shin bone guide pipe is directed toward shin bone contact portion.
Preferably, fixed link also includes mobile jib portion, the second adjustment portion, mobile jib portion, shin bone contact portion in the tibial prosthesis
It is sequentially connected；
Linear extension or the presence bending in the longitudinal direction of mobile jib portion；Stringer duct is provided in the mobile jib portion, it is described
The second tip duct is provided in shin bone contact portion；
Lead is measured to be slidably mounted in stringer duct and the second tip duct.
Preferably, also include measurement structure, the measurement structure includes following any structure or various structures：
-- the graduated scale being arranged in fixed link in tibial prosthesis；
-- the angle mark being arranged in second adjustment portion；
-- it is provided with scale mark on the measurement lead.
Compared with prior art, the present invention has following advantageous effect：
1, it after femur locator and ligament tibia locator fix, by 0 ° -120 ° of movable knee joint, can be positioned by shin bone
Device graduated scale observes and measures the movement of lead, and then measures intra-articular anchor point end-end distance and distance change；In turn,
2, the isometric property of anchor point is evaluated before doing femoral tunnel in art, first clearly isometric anchor point, then do osseous tunnel, weight
Build anterior cruciate ligament；
It 3, can be directly from femur guide pipe and shin bone guide pipe after the present invention carries out the isometric positioning of isometric or class
It is passed through Kirschner wire, completes the positioning in the punching orientation on femur and shin bone；In turn,
4, low to sclerotin extent of injury without determining the isometric reconstruction tunnel of ligament by repeatedly punching in performing the operation, and
Have good guidance quality, operation more convenient in drill process；
5, femur guide pipe is provided with tooth type structures with one end that shin bone guide pipe is contacted with sclerotin, increase with sclerotin it
Between frictional force, anti-sliding stop；
6, measurement lead is worn and connects convenience in the present invention, is convenient for replacing, and it is firm to be connected in use, is conducive to operation and measures
Safety and accuracy；
7, the present invention can accurate judgement graft rebuild osseous tunnel position, while can measure graft in intra-articular length
Degree has larger clinical meaning.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is femur locator structure schematic diagram；
Fig. 2 is ligament tibia locator structural schematic diagram；
Fig. 3 is overall structure of the present invention；
Fig. 4 is to measure lead high scale to identify schematic diagram.
It is shown in figure：
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on ... shown in the drawings or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, device is not indicated or implied the indicated or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
As shown in figure 3, the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament provided by the invention, including locator structure
Have and measure lead 17, includes femur locator 100 and ligament tibia locator 200 in multiple locator structures；Femur locator 100
It is connected by the measurement lead 17 with ligament tibia locator 200, the both ends of lead 17 along its length that measure fasten respectively
It connects or is slidably connected on corresponding locator structure；Femur locator 100 includes femur contact portion 2, ligament tibia locator 200
Including shin bone contact portion, the measurement lead 17 is on length extending direction by the femur contact portion 2 and shin bone contact portion.
As shown in Figure 1, the femur locator 100 includes fixed link 1 and the outer fixed link 6 of femoral joint in femoral joint,
The both ends of fixed link 1 in axial direction are respectively formed the first adjustment portion, femur contact portion 2 in femoral joint；Described first is adjusted
Portion is slidably connected or is fastenedly connected outside femoral joint in fixed link 6.First adjustment portion is socketed in fixed outside femoral joint
On bar 6, and the slide lock of fixed link 6 or unlock outside opposite femoral joint are completed by the first adjusting screw 5 of setting.It is described
Femur locator 100 also includes femur guide pipe 8；The wherein one end in both ends along its length of the outer fixed link of the femoral joint 6
It is integrally formed or is fastenedly connected with the first pipe guide part；The femur guide pipe 8 is slidably mounted on the first pipe guide part, and is led to
The second adjusting screw 7 for crossing setting completes slide lock or the unlock of opposite first pipe guide part.It is set in the femur contact portion 2
It is equipped with the first tip duct 3 and the first fixing screws 4；The measurement lead 17 is threaded through in the first tip duct 3, and passes through institute
The first fixing screws 4 are stated to be relatively fixed in femur contact portion 2；The central axes extending direction of the femur guide pipe 8 is directed toward stock
Bone contact portion 2.
As shown in Fig. 2, the ligament tibia locator 200 includes fixed link 9 and the outer fixed link of tibial prosthesis in tibial prosthesis
14；Fixed link 9 is respectively formed the second adjustment portion, shin bone contact portion along the both ends of length extending direction in tibial prosthesis；Described
Two adjustment portions are slidably connected or are fastenedly connected outside tibial prosthesis in fixed link 14.Second adjustment portion is socketed in tibial prosthesis
In outer fixed link 14, and by the third adjusting screw 15 of setting complete outside opposite tibial prosthesis the slide lock of fixed link 14 or
Unlock.The ligament tibia locator 200 also includes shin bone guide pipe 16；The both ends along its length of the outer fixed link of the tibial prosthesis 14
In wherein one end be integrally formed or be fastenedly connected with the second pipe guide part；The shin bone guide pipe 16 is slidably mounted on the second pipe and leads
The slide lock of two pipe guide parts or unlock relatively are completed in portion, and by the 4th adjusting screw 18 of setting；The shin bone
The central axes extending direction of guide pipe 16 is directed toward shin bone contact portion.In the tibial prosthesis fixed link 9 also include mobile jib portion, second
Adjustment portion, mobile jib portion, shin bone contact portion are sequentially connected；Linear extension or the presence bending in the longitudinal direction of mobile jib portion；The master
It is provided with stringer duct 11 in bar portion, the second tip duct 10 is provided in the shin bone contact portion；Measure the sliding peace of lead 17
In stringer duct 11 and the second tip duct 10.Preferably, also include measurement structure, the measurement structure includes following
Any structure appoints various structures：The graduated scale 12 being arranged in fixed link 9 in tibial prosthesis；It is arranged in second adjustment portion
Angle mark 13；It is provided with scale mark on the measurement lead 17.
Preferably for femur guide pipe 8 and shin bone guide pipe 16 this two guide pipes, on one end of bone contact
Tooth type structures are provided with, are conducive to be fixed on bone face.Certainly, the tooth type structures can also be texture structure, bayonet fittings or
The combination of person's various structures, convenient for enhancing frictional force or grabbing resultant force.2.0 kirschner can also be inserted into the guide pipe
Needle, or it is directly added into drill bit structure, it drills on bone.Due to fixed link 6 and tibial prosthesis outside the femoral joint
Outer fixed link 14 is arcuate structure, therefore central axes extending direction of two guide pipes in adjustment process is respectively directed to always
Femur contact portion 2, shin bone contact portion.In addition, fixation measuring lead 17 can be squeezed by the first fixing screws 4, lead is measured
17 do not slip easily, it is preferable that the second tip duct 10 exports proximally facing.
Preferably, all channel diameters of the present invention are 2mm, measure 17 diameter 1.5mm of lead, as shown in Fig. 4,
Measure lead 17 and indicate scale, 1-0-1-2 to 30, unit cm (figure middle or long line), least unit mm (figure middle short line) 0,5,10,
Red scale is marked at 15cm, makees blue scale, total length 30cm, with the small PET materials of ductility at red scale both sides 1cm
Material, it is preferable that measuring lead 17 can be replaced for limited access times consumables due to easy to disassemble, ensure operation peace
Quan Xing.Preferably, the graduated scale 12 in tibial prosthesis in fixed link 9 indicates scale, 2-1-0-1-2, unit cm, least unit
mm.Graduated scale 12 is located at 9 corner extremities of fixed link, the lower section in stringer duct 11 in tibial prosthesis.
Preferred embodiment：
First, lead 17 will be measured to penetrate in the first tip duct 3, adjustment measures lead 17, is fixed with the first of front end
The scale 0 of the measurement lead 17 of screw 4 is fixed on the exit in the first tip duct 3.Under conventional Arthroscopic portals, medial approach is set
Enter joint sem observation, lateral approach is placed in fixed link 1 in femoral joint.Preferably, femur contact portion 2 is fixed under arthroscope
The isometric region of anterior cruciate ligament class, this region are located at dissection stop front upper place, and there are individual differences.Fixed link 6 outside femoral joint
On the pressurization of femur guide pipe 8 be fixed on joint dermoskeleton face, complete femur locator 100 and fix.
Then, lead 17 will be measured to pull out from medial approach, penetrates the second tip duct 10 of ligament tibia locator 200, after
It is continuous to penetrate stringer duct 11, the tail portion in stringer duct 11 is pulled out, fixed tibial locator 200 is continued.Preferably, by shin bone contact
Portion is placed in shin bone anterior cruciate ligament top dead center point to the front, and there are individual differences.The shin bone of fixed link outside tibial prosthesis 14 is led
It is fixed on bone face to the pressurization of pipe 16, ligament tibia locator 200 is completed and fixes.
Finally, it pulls and measures lead 17, make its not relaxation or curling, it is observed in the process for 0 ° to 120 ° in joint motion
Length changes.It is considered as isometric reconstruction point if measuring 17 length of lead and changing very little and (be less than 1mm) to have chosen, before continuing routine
Cruciate ligament reconstruction surgery step.It is dissatisfied (length variation is more than 1-3mm) when measuring the variation of 17 length of lead, it can continue to adjust
It is whole, according to current most research reports as a result, can mainly do 2 kinds of subtle adjustment, the adjustment of shin bone anchor point and femur anchor point tune
It is whole.
Preferably, femur anchor point is adjusted, when measuring lead 17 in 0 ° to 120 degree length variation of knee articulation, most
Big gap is negative, it is meant that intra-articular anchor point end-end distance tends to be elongated in active procedure, at this time determines femur
The lower adjustment forward of Blumensaat lines is prolonged in site, after adjusting, is measured once again, if dissatisfied, above step is repeated, if gone out
It is positive number now to measure the variation of 17 length of lead, then reversed adjustment.Preferably, shin bone anchor point is adjusted, when femur anchor point is complete
It is still dissatisfied after optimal selection, it measures the variation of 17 length of lead and is slightly above ideal value, adjust shin bone anchor point, shin at this time
The adjustment of bone anchor point can be biased to adjustment in front of footmark area, but no more than footmark area, consider graft radius and graft not
Fossa intercondyloidea shock can occur.If still undesirable, aforesaid operations are repeated, find best orientation, it is (long to carry out the isometric reconstruction of class
Degree variation is in 1-3mm).
Other embodiment：
Preferably, for example, anterior cruciate ligament double bundle reconstruction positioning in application, because it can measure graft joint
Interior length, the selection that anchor point is rebuild for two-beam is more helpful, is positioned referring in particular to the adjustment of above-mentioned shin bone anchor point and femur
Point set-up procedure, but observation focuses on the intra-articular length of graft.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the absence of conflict, the feature in embodiments herein and embodiment can arbitrary phase
Mutually combination.
Claims (10)
1. a kind of isometric reconstruction positioning system of the isometric class of anterior cruciate ligament, which is characterized in that there is measurement to draw comprising locator structure
Line (17) includes femur locator (100) and ligament tibia locator (200) in multiple locator structures；
Femur locator (100) is connected with ligament tibia locator (200) by the measurement lead (17), the measurement lead (17)
Both ends along its length are fastenedly connected or are slidably connected on corresponding locator structure respectively；
Femur locator (100) includes femur contact portion (2), and ligament tibia locator (200) includes shin bone contact portion, and the measurement is drawn
Line (17) is on length extending direction by the femur contact portion (2) and shin bone contact portion.
2. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 1, which is characterized in that the femur
Locator (100) includes the outer fixed link (6) of fixed link (1) and femoral joint in femoral joint, fixed link (1) edge in femoral joint
The both ends of axial direction are respectively formed the first adjustment portion, femur contact portion (2)；
First adjustment portion is slidably connected or is fastenedly connected outside femoral joint in fixed link (6).
3. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 2, which is characterized in that described first
Adjustment portion is socketed in the outer fixed link (6) of femoral joint, and completes opposite femoral joint by the first adjusting screw (5) of setting
The slide lock of outer fixed link (6) or unlock.
4. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 2, which is characterized in that the femur
Locator (100) also includes femur guide pipe (8)；
Wherein one end is integrally formed or is fastenedly connected with the first pipe to the outer fixed link (6) of the femoral joint in both ends along its length
Guide part；
The femur guide pipe (8) is slidably mounted on the first pipe guide part, and is completed by the second adjusting screw (7) of setting
The slide lock of opposite first pipe guide part or unlock.
5. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 4, which is characterized in that the femur
The first tip duct (3) and the first fixing screws (4) are provided in contact portion (2)；
The measurement lead (17) is threaded through in the first tip duct (3), and is relatively fixed by first fixing screws (4)
In femur contact portion (2)；
The central axes extending direction of the femur guide pipe (8) is directed toward femur contact portion (2).
6. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 1, which is characterized in that the shin bone
Locator (200) includes fixed link (9) and the outer fixed link (14) of tibial prosthesis in tibial prosthesis；
Fixed link (9) is respectively formed the second adjustment portion, shin bone contact portion along the both ends of length extending direction in tibial prosthesis；
Second adjustment portion is slidably connected or is fastenedly connected outside tibial prosthesis in fixed link (14).
7. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 6, which is characterized in that described second
Adjustment portion is socketed in the outer fixed link (14) of tibial prosthesis, and is completed opposite shin bone by the third adjusting screw (15) of setting and closed
The slide lock of the outer fixed link (14) of section or unlock.
8. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 6, which is characterized in that the shin bone
Locator (200) also includes shin bone guide pipe (16)；
Wherein one end is integrally formed or is fastenedly connected with second to the outer fixed link (14) of the tibial prosthesis in both ends along its length
Pipe guide part；
The shin bone guide pipe (16) is slidably mounted on the second pipe guide part, and complete by the 4th adjusting screw (18) of setting
Slide lock at opposite two pipe guide parts or unlock；
The central axes extending direction of the shin bone guide pipe (16) is directed toward shin bone contact portion.
9. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 6, which is characterized in that the shin bone
Intra-articular fixed link (9) includes also mobile jib portion, and the second adjustment portion, mobile jib portion, shin bone contact portion are sequentially connected；
Linear extension or the presence bending in the longitudinal direction of mobile jib portion；Stringer duct (11) is provided in the mobile jib portion, it is described
The second tip duct (10) is provided in shin bone contact portion；
Lead (17) is measured to be slidably mounted in stringer duct (11) and the second tip duct (10).
10. the isometric reconstruction positioning system of the isometric class of anterior cruciate ligament according to claim 9, which is characterized in that also include
Measurement structure, the measurement structure include following any structure or various structures：
-- the graduated scale (12) being arranged in fixed link (9) in tibial prosthesis；
-- the angle mark (13) being arranged in second adjustment portion；
-- it is provided with scale mark on the measurement lead (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495470 | 2018-05-22 | ||
| CN2018104954708 | 2018-05-22 |
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| Publication Number | Publication Date |
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| CN108742949A true CN108742949A (en) | 2018-11-06 |
| CN108742949B CN108742949B (en) | 2024-04-02 |
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|---|---|---|---|
| CN201810797999.5A Active CN108742949B (en) | 2018-05-22 | 2018-07-19 | Equal-length type equal-length reconstruction positioning system for anterior cruciate ligament |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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