CN107811697A - Tibial plateau is to line handle - Google Patents
Tibial plateau is to line handle Download PDFInfo
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- CN107811697A CN107811697A CN201610825374.6A CN201610825374A CN107811697A CN 107811697 A CN107811697 A CN 107811697A CN 201610825374 A CN201610825374 A CN 201610825374A CN 107811697 A CN107811697 A CN 107811697A
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- handle
- tibial plateau
- connecting rod
- line
- pin
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8863—Apparatus for shaping or cutting osteosynthesis equipment by medical personnel
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- Heart & Thoracic Surgery (AREA)
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Abstract
Line handle, the handle are included the invention provides a kind of tibial plateau：Handle handlebody, one end of the handle handlebody are provided with the handle connection part for being used for coupling with the die trial connection part of tibial plateau die trial；Locking mechanism, the locking mechanism is configured to make the handle connection part and the die trial connection part is in the lock state or release conditions；Wherein, the locking mechanism includes lock piston, lever handle and connecting rod, and in the lock-out state, the elastic force provided by one or more of the lock piston, the lever handle and described connecting rod causes the locking mechanism to be in self-locking state.The tibial plateau of the present invention is simple to line handle locking/release process operation, saves the time, self-locking is realized using elastic force, makes handle and die trial sealed firmly, reliability height, meanwhile, it also limit coupling mechanism force, there is provided clearly feedback is reminded.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of tibial plateau pair for artificial knee replacement surgery
Line handle.
Background technology
Total knee replacement is a kind of lesion knee joint, recovery knee joint that human body is replaced using bioartificial materials
The plastic surgery operations of normal physiological function.In operation, doctor needs that the kneed shin bone of patient is carried out to characterize to cut
Bone, to match artificial knee joint prosthesis.
After to proximal tibia osteotomy, it usually needs tibial plateau die trial is clamped to line handle using tibial plateau,
It is compared with the osteotomy surface of proximal tibia, measures the tibial plateau size of needs, and position is determined for tibial plateau implant,
Fixation after being easy to.After tibial plateau die trial is fixed, other are arranged in pairs or groups to the interface on line handle using tibial plateau
Apparatus, such as line of force bar, to assess whether the fixed position of tibial plateau die trial is directed at the lower limb line of force.
Tibial plateau that is widely used, can completing similar functions substantially may be used to line handle in current replacement knee in arthroplasty
It is divided into two kinds：One kind is designed for integral type, i.e. tibial plateau die trial and tibial plateau is integrated to line handle, and both are inseparable
From；Another kind is split-type design, i.e., tibial plateau die trial is connected with tibial plateau to line handle by interface, then passes through locking
Mechanism is sealed.For unitary design, for example, certain handle of Ai Kangyicheng companies, there are two shortcomings in this design：
First, non-removable handle can disturb the visual field and the operation of surgical staff in operation, secondly as tibial plateau die trial
Size model number has a lot, can increase processing and cost of transportation.For split-type design, although this design overcomes one
, but the shortcomings that other be present in the disadvantages mentioned above of formula design, such as it is sealed loosely, it is sealed/release steps are cumbersome and are not easy to grasp in art
Make etc..For example, the outer handle for tool of Shi Saike shin bone marrow, is designed using spiral locking, on the one hand multistep is needed to grasp in locking
Make, expend the operating time of preciousness, on the other hand during the twist-lock handle on handle is tightened, without clearly anti-
Feedback reminds surgical staff handle firm with die trial locking, therefore, it may appear that sealed jail excessively and damage apparatus, or it is sealed loosely
And the accident for making handle be come off with die trial.
Problem present in above-mentioned existing product, which is always that those skilled in the art are desired, to be solved.
The content of the invention
Present invention aim to overcome above-mentioned at least one defect of the prior art, a kind of improved shin bone is proposed
For platform to line handle, this handle can realize the quick connection with tibial plateau die trial, make that locking/release process is simple, lock
Close firmly, and there is clearly feedback to remind in locking.
Therefore, according to an aspect of the present invention, there is provided a kind of tibial plateau includes to line handle, the handle：
Handle handlebody, one end of the handle handlebody are provided with the hand for being used for coupling with the die trial connection part of tibial plateau die trial
Handle connection part；
Locking mechanism, the locking mechanism are configured to make the handle connection part be in locking with the die trial connection part
State or release conditions；
Wherein, the locking mechanism includes lock piston, lever handle and connecting rod, wherein the first end of the lock piston
Can extend beyond the end face of the handle connection part, the second end of the lock piston and the first end of the connecting rod respectively with institute
The union end for stating lever handle couples at the diverse location of the union end, and the second end of the connecting rod is pivotally coupled
To the handle handlebody；In the lock-out state, by one in the lock piston, the lever handle and the connecting rod
Or the elastic force of multiple offers causes the locking mechanism to be in self-locking state.
Preferably, the second end of the lock piston is joined by the first hole of the first pin and the union end of the lever handle
Connecing, the first end of the connecting rod is coupled by the second pin with the second hole of the union end of the lever handle, and the connecting rod
Second end is pivotally attached to the handle handlebody by the 3rd pin；In the release conditions, the center of second pin
Positioned at the center of the described first pin and the first side of the line at the center of the 3rd pin；In the lock-out state, described
Two pins are centrally located at the second side of the line at the center of first pin and the center of the 3rd pin.
Preferably, in the release conditions, the handle end of the lever handle is away from the handle handlebody；In the lock
Determine in state, the handle end of the lever handle props up the handle handlebody.
Preferably, it is characterised in that the inside of the handle handlebody is provided with sky in the position of the neighbouring handle connection part
Chamber, the locking mechanism is arranged in the cavity and the handle end of the lever handle be located at the handle handlebody outside
Portion.
Preferably, the connecting rod is one-piece elastic part or Combined elastic part, wherein the Combined elastic portion
Part includes first connecting rod connector and second connecting rod connector, the first connecting rod connector and the second connecting rod connector it
Between be provided with flexible member so that the connecting rod is integrally rendered as elastomeric element.
Preferably, the union end of the lever handle is provided with least one between first hole and second hole
Groove so that the union end of the lever handle turns into elastomeric element.
Preferably, the lock piston is elastomeric element so that the first end of the lock piston and the lever handle
Union end between form resilient connection.
Preferably, the lock piston includes first piston connector and second piston connector, the first piston connection
Flexible member is provided between fitting and the second piston connector so that the lock piston is integrally rendered as elastomeric element.
Preferably, the handle connection part is one kind in protuberance and slot, and the die trial connection part is form fit
The protuberance and the slot in another kind, and the protuberance is only capable of the extension along the slot in the slot
Move in direction.
Preferably, the protuberance is swallow-tail form, T-shaped or trapezoidal protuberance, and the slot is the dovetail of form fit
Groove, T-slot or dovetail groove.
Preferably, line of force bar jack is additionally provided with the handle handlebody.
It is of the invention with now widely used unitary design or the tibial plateau of split-type design to compared with line handle
Tibial plateau is locked to line handle using the self-lock mechanism of linkage, can realize the fast of handle and tibial plateau die trial
Speed connection, makes locking/release process simple, and sealed firm, and can produce clearly feedback and remind.
Brief description of the drawings
With reference to the accompanying drawings come be described in detail the present invention exemplary embodiment and the present invention is explained further, in accompanying drawing
In：
Fig. 1 and Fig. 2, which is tibial plateau according to embodiments of the present invention respectively, to be shown the axonometric schematic diagram of line handle and facing
It is intended to；
Fig. 3 is the amplification view of tibial plateau shown in Fig. 1 and 2 to a part for line handle, illustrated therein is locking
Mechanism；
Fig. 4 is the sectional view when tibial plateau shown in Fig. 1 and 2 locks to line handle and tibial plateau die trial；
Fig. 5 and Fig. 6 is the axonometric schematic diagram and section view of another embodiment of the connecting rod of the locking mechanism shown in Fig. 3 respectively
Figure；
Fig. 7 is the schematic elevation view of another embodiment of the lever handle of the locking mechanism shown in Fig. 3；
Fig. 8-10 is the axonometric schematic diagram of another embodiment of the lock piston of the locking mechanism shown in Fig. 3 respectively, faced
Schematic diagram and sectional view.
Embodiment
Tibial plateau according to a preferred embodiment of the invention is described in detail below in conjunction with the accompanying drawings to line handle.This area skill
Art personnel should be understood that these exemplary embodiments are not meant to form any restrictions to the present invention.In addition, do not conflicting
In the case of, the feature in embodiments of the invention and embodiment can be mutually combined.
Fig. 1 and Fig. 2, which is tibial plateau according to embodiments of the present invention respectively, to be shown the axonometric schematic diagram of line handle and facing
It is intended to.As illustrated in fig. 1 and 2, tibial plateau includes handle handlebody 10 and locking mechanism 30 to line handle 1.The one of handle handlebody 10
End 16 is provided with handle connection part 12, and handle connection part 12 is used to (in Fig. 4 show with the die trial connection part 21 of tibial plateau die trial 2
Go out) connection.The other end 15 of handle handlebody 10 is used to be gripped by surgical staff.Line of force bar jack can be also provided with handle handlebody 10
17.Locking mechanism 30 is arranged on the position of the close handle connection part 12 of handle handlebody 10, wherein, only show in fig 1 and 2
The handle end positioned at the outside of handle handlebody 10 of the lever handle 32 of locking mechanism 30.The handle end of lever handle 32 can be by
Surgical staff promotes towards or away from handle handlebody 10.
Fig. 3 is the amplification view of tibial plateau shown in Fig. 1 and 2 to a part for line handle, illustrated therein is locking
Mechanism 30.As shown in figure 3, it is provided with cavity 11, locking mechanism 30 close to the position of handle connection part 12 in the inside of handle handlebody 10
It is accommodated in cavity 11, and the handle end of lever handle 32 is located at the outside of handle handlebody 10.According to tibial plateau to line hand
The specific configuration of handle 1, handle handlebody 10 can also be not provided with cavity, and locking mechanism 30 is arranged on the outside of handle handlebody 10.
In addition, the handle end of the lever handle 32 of locking mechanism 30 may be alternatively located at the inside of handle handlebody 10.
Fig. 4 is the sectional view when tibial plateau shown in Fig. 1 and 2 locks to line handle and tibial plateau die trial.Locking machine
Structure 30 is configured to make handle connection part 12 and die trial connection part 21 is in the lock state or release conditions.As shown in Figures 3 and 4,
Locking mechanism 30 includes lock piston 31, lever handle 32 and connecting rod 40.The first end of lock piston 31 can extend beyond hand
The end face of handle connection part 12.When the tibial plateau of the present invention couples to line handle 1 with tibial plateau die trial 2, lock piston 31
The end face of first end prop up tibial plateau die trial 2, to provide coupling mechanism force, as shown in Figure 4.In the embodiment shown in Fig. 3 and 4
In, the first end of lock piston 31 passes through the through hole in handle connection part 12 to extend.As long as however, the first of lock piston 31
End can also use other set-up modes in lock timed contact die trial connection part 21, the first end of lock piston 31, for example, from
Extend the position of neighbouring handle connection part 12.Second end of lock piston 31 and the first end of connecting rod 40 respectively with lever handle
32 union end couples at the diverse location of the union end, and the second end of connecting rod 40 is pivotally coupled to handle handlebody
10.For example, the second end of lock piston 31 is coupled by the first pin 33 with the first hole 36 of lever handle 32, the first of connecting rod 40
End is coupled by the second pin 34 with the second hole 37 of lever handle 32, and the second end of connecting rod 40 passes through the 3rd pin 35 and handle handlebody
10 connections.Therefore, the pin-and-hole 19 (as shown in figs. 1 and 2) for the 3rd pin 35 is provided with handle handlebody 10.Lock piston
31st, lever handle 32 and connecting rod 40 together form linkage.In the above-described embodiments, lock piston 31, lever handle 32,
It is to be coupled respectively by single first pin 33, the second pin 34 and the 3rd pin 35 between connecting rod 40 and handle handlebody 10, but
In further embodiment, it can also be realized by the structure of the pin that is integrally formed with corresponding part or similar pin.
In the embodiment shown in Fig. 3 and 4, the locking mechanism 30 shown in Fig. 3 is in release conditions, and the lock shown in Fig. 4
Determine mechanism 30 to be in the lock state.In release conditions, as shown in figure 3, lock piston 31, lever handle 32 and connecting rod 40 are located
In the state of not stressing, the handle end of lever handle 32 is centrally located in the first pin 34 away from handle handlebody 10, the second pin 33
First side of the line at the center of the heart and the 3rd pin 35.In lock-out state, as shown in figure 4, the first end of lock piston 31 is supported
One or more of the firmly die trial connection part 21 of tibial plateau die trial 2, lock piston 31, lever handle 32 and connecting rod 40 provides
Elastic force locking mechanism 30 is in self-locking state.Now, the handle end of lever handle 32 props up handle handlebody 10, the second pin 34
It is centrally located at the second side of the line at the center of the first pin 33 and the center of the 3rd pin 35.
Working condition referring to the descriptions of Fig. 3 and 4 tibial plateau of the invention to the locking mechanism 30 of line handle 1.
In locking process, the handle end of lever handle 32 is promoted thus to make thick stick until colliding and propping up handle handlebody 10
Bar handle 32 rotates around the first pin 33, drives the second pin 34 along the center towards the first pin 33 and the company at the center of the 3rd pin 35
Line is inwardly swung.Because the first end of connecting rod 40 is connected with the union end of lever handle 32 by the second pin 34, now connecting rod
40 also inwardly swing around the 3rd pin 35, so that the center of the second pin 34 is from positioned at the center and the 3rd pin 35 of the first pin 33
The side of line first of the heart is moved to the second side, while lock piston 31 is ejected from the end face of handle connection part 12.Due to handle
Space is limited between the end face of connection part 12 and die trial connection part 21, and the first end of lock piston 31 can not eject completely,
The amount of piston displacement having more passes to the elastomeric element in locking mechanism 30.So, the first end of lock piston 31 props up die trial
The end face of connection part 21, and lock piston 31 props up elasticity anti-work of the coupling mechanism force equal to elastomeric element feedback of die trial connection part 21
Firmly.Because the second pin 34 is centrally located at the second side of the line at the center of the first pin 33 and the center of the 3rd pin 35, second
Point to the direction that lever handle 32 continues inwardly to rotate in the direction of the reaction force for the lock piston 31 being subject at pin 34.But
It is, because now the handle end of lever handle 32 props up with handle handlebody 10, it is impossible to be rotated further, so making locking mechanism 30 exist
Self-locking is formed at second pin 34, realizes the purpose that self-locking is realized while locking tibial plateau die trial, and coupling mechanism force is by locking
Elastomeric element in mechanism 30 provides, and can be adjusted to suitable size.
During release, the handle end of lever handle 32 is promoted along the direction away from handle handlebody (10), driven
The first end opposite direction of connecting rod 40 is swung, and makes the center of centrally directed first pin 33 of the second pin 34 and the center of the 3rd pin 35
Line is mobile and crosses the line, the first side is moved to from the second side of the line, so that the first of lock piston 31
Hold in retraction handle handlebody 10, coupling mechanism force disappears.So, surgical staff can separate handle connection part 12 and die trial connection part
21。
In the embodiment shown in fig. 3, connecting rod 40 is illustrated as the one-piece elastic part of bending, such as by elastic preferable
Flat spring or flat spring made of stainless steel or super-elasticity stainless steel.When locking mechanism 30 is in the lock state, connecting rod 40 carries
Ammunition feed masterpiece is the coupling mechanism force of lock piston 31 and the self-lock force of locking mechanism 30.According to another embodiment, connecting rod 40 can also
It is Combined elastic part, as it can be seen in figures 5 and 6, connecting rod 40 includes first connecting rod connector 44 and second connecting rod connector 45,
Flexible member 47, such as spring are provided between first connecting rod connector 44 and second connecting rod connector 45 so that connecting rod 40 is overall
It is rendered as elastomeric element.For example, first connecting rod connector 44 is provided with through hole 42 and chamber 48, through hole 44 is used to insert the second pin 34
And couple with the second hole 37 of the union end of lever handle 32.Second connecting rod connector 45 is provided with through hole 43 and axostylus axostyle 46, through hole
43 are used to insert the 3rd pin 35 and the second end of connecting rod 44 is pivotally coupled into handle handlebody 40.After assembly is completed, bullet
Property element 47 be located in chamber 48, axostylus axostyle 46 insert chamber 48 in and flexible member 47 is pressed in chamber 48.So, connecting rod 40
Entirety shows elasticity.
Certainly, according to another embodiment, connecting rod 40 can also be rigid rod, and the elastic force in locking mechanism 30 is by lock piston
31 and/or lever handle 32 provide.As shown in fig. 7, in another embodiment, the union end of lever handle 32 is provided with groove 38,
Groove 38 is between the first hole 36 and the second hole 37 so that when locking mechanism 30 is in the lock state, the connection of lever handle 32
Connect end and be rendered as elastomeric element, and then the coupling mechanism force of lock piston 31 and the self-lock force of locking mechanism 30 are provided.Shown in Fig. 7
In embodiment, groove 38 is a groove, however, in a further embodiment, the number of groove 38 can be multiple.In addition, the shape of groove
Shape can be elongated shape, arc or any shape that can provide required elastic force.
In the embodiment shown in fig. 3, lock piston 31 is illustrated as rigid element.However, in another embodiment, locking
Piston 31 or elastomeric element, as seen in figs. 8-10.Reference picture 8, lock piston 31 include first piston connector 50 and the
Two piston connectors 52, flexible member 55, such as spring are provided between first piston connector 50 and second piston connector 52,
So that lock piston 31 is overall to be rendered as elastomeric element.In the example of the present invention, first of first piston connector 50
It is divided into lock piston bar 51, lock piston bar 51 is used for the end face for propping up die trial connection part 21.The of first piston connector 50
Two parts are coupling part 53, and coupling part 53 is provided with groove 57, and second piston connector 52 is provided with pin 54 so that second lives
The pin 54 of plug connector 52, which can be moved and formed in the groove 57 of first piston connector 50, to be actively coupled.In addition, second lives
Plug connector 52 is additionally provided with the hole 56 coupled for the first hole 36 of the union end with lever handle 32 by the first pin 33.
One end opposite with hole 56 of two piston connectors 52, which is provided with, to be used to install and guide the guiding bar 58 of flexible member 55.Such as Fig. 9
Shown, flexible member 55 is set around guiding bar 58.Correspondingly, first piston connector 50 lock piston bar 51 inside
Provided with groove 59, so that guiding bar 58 can move in groove 59, as shown in Figure 10.After installation is in place, pin 54 is second
Be relatively fixed on piston connector 52, and due to flexible member 55 elastic force and against one end of groove 57.Therefore, first piston joins
Fitting 50 (that is, the first end of lock piston 31) forms resilient connection between the union end of lever handle 32.Work as lever handle
During 32 swing, the compression elastic element 55 by the thrust that lever handle 32 transmits of second piston connector 52 so that pin 54 exists
Moved in groove 57, while guiding bar 58 moves in groove 59, so, the active force of flexible member 55 acts on lock piston bar
On 51, it is set to prop up the end face of die trial connection part 21.In a further embodiment, lock piston 31 need not use above-mentioned first
The form of piston connector 50, second piston connector 52 and flexible member 55, but can use can make lock piston overall
It is rendered as any structure or form of elastomeric element.
Under normal circumstances, the elastic force that any one in lock piston 31, lever handle 32 and connecting rod 40 provides can be realized
Locking and the function of self-locking.Certainly, by above-mentioned part multiple parts provide elastic force also the present invention design within.
Handle connection part referring again to the descriptions of Fig. 3 and 4 tibial plateau of the invention to line handle 1.Handle connection part 12
Can be one kind in protuberance and slot, correspondingly, die trial connection part 21 is another in the protuberance and slot of form fit
One kind, and the protuberance is only capable of moving along the bearing of trend of slot in the slot.As shown in Figures 3 and 4, handle connection part
12 be swallow-tail form end, correspondingly, the die trial in tibial plateau die trial 2 coupled with the tibial plateau of the present invention to line handle 1
Connection part 21 is the dovetail groove of form fit.Bearing of trend of the handle connection part 12 along dovetail groove is being inserted into die trial connection part
When in 21, both may only be moved along the bearing of trend of dovetail groove, and the free degree in the other direction is constrained.When towards hand
When handle shank body 10 pulls lever handle 32 and makes the locking of locking mechanism 30, lock piston 31 passes through the through hole in handle connection part 12
Stretched out perpendicular to the end face of swallow-tail form end, prop up the end face of the dovetail groove of die trial connection part 21, make the both wings of swallow-tail form end
Be in close contact with the both wings of dovetail groove, using on each contact surface caused frictional force by two connection parts along dovetail groove extension side
Upward motion limits.Certainly, handle connection part 12 can also be T-shaped end, and correspondingly, die trial connection part 21 is shape
The T-slot matched somebody with somebody.Vice versa, and handle connection part 12 can be dovetail groove or T-slot, and die trial connection part 21 is swallow-tail form or T
Shape end.In a further embodiment, handle connection part 12 and die trial connection part 21 can be trapezoidal end and dovetail groove respectively,
Or handle connection part 12 and die trial connection part 21 can be made to form other matched shapes of connection.In addition, the fortune of lock piston 31
Dynamic direction can also be not orthogonal to the end face of the slot or the protuberance, but along not with the slot or the protuberance
Parallel other directions of bearing of trend.
In the above-described embodiments, lever handle 32 is the handle shapes of bending, and this is only exemplary, lever handle 32
Can be other shapes.In addition, limit pin hole 18 can be also provided with handle handlebody 10, for inserting spacer pin, so as to solve
The swing angle of limiting rod 40 during lock release.For example, when connecting rod 40 is one-piece elastic part, spacer pin can prevent connecting rod
40 swing further out, so as to avoid 32 outward angle of lever handle excessive, operation is brought inconvenience；In connecting rod
For Combined elastic part when, the swing angle of spacer pin energy limiting rod 40, so as to avoid the connection of the two of connecting rod 40 connecting rods
Mutual displacement between part is excessive, plays a part of avoiding dislocation.In addition, limit pin hole 18 can also be arranged for insertion limit
The spacer pin of the swing angle of lever handle 32 processed.
Use example of the tibial plateau for replacement knee in arthroplasty of the present invention to line handle is described below in detail.
In replacement knee in arthroplasty, after proximal tibia osteotomy is completed, using the tibial plateau of the present invention to line handle 1.
First, handle end of the tibial plateau to the lever handle 32 of line handle 1, band fixed handle are promoted away from handle handlebody 10
Internal connecting rod mechanism movement, makes the first end of lock piston 31 be retracted in handle handlebody 10；
The tibial plateau die trial 2 of appropriate model is chosen, joins tibial plateau to the handle of line handle 1 according to being correctly oriented
Socket part 12 couples with the die trial connection part 21 of tibial plateau die trial 2 so that the end face of handle connection part 12 and die trial connection part 21
End face it is concordant；
The handle end of lever handle 32 is promoted towards handle handlebody 10, the handle end of lever handle 32 is collided handle handlebody
10 send sound, and surgical staff is reminded with clear and definite feel and sound feedback：Now locking mechanism 30 is in the lock state, so as to
Avoid that accident caused by lock-out state can not be determined；
The tibial plateau die trial 2 of firm grip is put on the osteotomy end face of shin bone using handle and measures, position, and
Fixed tibial platform die trial；
Line of force bar is inserted in the line of force bar jack 17 on handle handlebody 10, calibrates the lower limb line of force, confirms that position location is
It is no correct；
Hand or hands promote the handle end of lever handle 32 so that the first end of lock piston 32 retracts handle handlebody 10
It is interior, unlock；
Die trial connection part 21 and handle connection part 12 are separated, dismounting tibial plateau is to line handle.
Using the tibial plateau of the present invention to line handle, it can conveniently and efficiently realize and couple with tibial plateau die trial,
Locking/release process operation is simple, saves the time, and locking mechanism realizes self-locking using elastic force, makes handle and die trial sealed firmly,
Reliability is high, while also limit coupling mechanism force, there is provided clearly feedback is reminded.
Above in association with specific embodiment to the present invention have been described in detail.Obviously, above description and show in the accompanying drawings
The embodiment gone out should be construed as it is exemplary, without being construed as limiting the invention.For those skilled in the art
Speech, can carry out various variations or modifications, these variations or modifications are not to it without departing from the spirit of the invention
Depart from the scope of the present invention.
Claims (11)
1. a kind of tibial plateau includes to line handle (1), the handle：
Handle handlebody (10), one end (16) of the handle handlebody (10) are provided with the die trial being used for tibial plateau die trial (2) and joined
The handle connection part (12) of socket part (21) connection；
Locking mechanism (30), the locking mechanism (30) are configured to make the handle connection part (12) and the die trial connection part
(21) it is in the lock state or release conditions；
Characterized in that, the locking mechanism (30) includes lock piston (31), lever handle (32) and connecting rod (40), wherein institute
The end face of the handle connection part (12) can be extended beyond by stating the first end of lock piston (31), and the of the lock piston (31)
The first end of two ends and the connecting rod (40) respectively the union end from the lever handle (32) in the different positions of the union end
Place's connection is put, and the second end of the connecting rod (40) is pivotally attached to the handle handlebody (10)；
In the lock-out state, by one in the lock piston (31), the lever handle (32) and the connecting rod (40)
The elastic force of individual or multiple offers causes the locking mechanism (30) to be in self-locking state.
2. tibial plateau according to claim 1 is to line handle, it is characterised in that the second end of the lock piston (31)
Coupled by the first pin (33) with the first hole (36) of the union end of the lever handle (32), the first end of the connecting rod (40)
Coupled by the second pin (34) with the second hole (37) of the union end of the lever handle (32), and the second of the connecting rod (40)
End is pivotally attached to the handle handlebody (10) by the 3rd pin (35)；
In the release conditions, second pin (34) is centrally located at the center of first pin (33) and the 3rd pin
(35) the first side of the line at center；In the lock-out state, second pin (34) is centrally located at first pin
(33) center and the second side of the line at the center of the 3rd pin (35).
3. tibial plateau according to claim 2 is to line handle, it is characterised in that in the release conditions, the thick stick
The handle end of bar handle (32) is away from the handle handlebody (10)；In the lock-out state, the handle of the lever handle (32)
Hand end props up the handle handlebody (10).
4. the tibial plateau according to any one of Claim 1-3 is to line handle, it is characterised in that the handle handle
The inside of body (10) is provided with cavity (11) in the position of the neighbouring handle connection part (12), and the locking mechanism (30) is set
The handle end of interior in the cavity (11) and described lever handle (32) is located at the outside of the handle handlebody (10).
5. the tibial plateau according to any one of Claim 1-3 is to line handle, it is characterised in that the connecting rod
(40) it is one-piece elastic part or Combined elastic part, wherein the Combined elastic part includes first connecting rod connector
(44) and second connecting rod connector (45), set between the first connecting rod connector (44) and the second connecting rod connector (45)
Have elastic component (47) so that the connecting rod (40) is integrally rendered as elastomeric element.
6. the tibial plateau according to Claims 2 or 3 is to line handle, it is characterised in that the connection of the lever handle (32)
Connect end and at least one groove (38) is provided between first hole (36) and second hole (37) so that the lever handle
(32) union end turns into elastomeric element.
7. the tibial plateau according to any one of Claim 1-3 is to line handle, it is characterised in that the locking is lived
It is elastomeric element to fill in (31) so that shape between the first end of the lock piston (31) and the union end of the lever handle (32)
Into resilient connection.
8. tibial plateau according to claim 7 is to line handle, it is characterised in that the lock piston (31) includes first
Piston connector (50) and second piston connector (52), the first piston connector (50) and the second piston connector
(52) flexible member (55) is provided between so that the lock piston (31) is integrally rendered as elastomeric element.
9. the tibial plateau according to any one of Claim 1-3 is to line handle, it is characterised in that the handle connection
Socket part (12) is one kind in protuberance and slot, and the die trial connection part (21) is the protuberance of form fit and described
Another kind in slot, and the protuberance is only capable of moving along the bearing of trend of the slot in the slot.
10. tibial plateau according to claim 9 is to line handle, it is characterised in that the protuberance is swallow-tail form, T-shaped
Or trapezoidal protuberance, the slot are the dovetail groove, T-slot or dovetail groove of form fit.
11. the tibial plateau according to any one of Claim 1-3 is to line handle, it is characterised in that the handle handle
Line of force bar jack (17) is additionally provided with body (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825374.6A CN107811697B (en) | 2016-09-14 | 2016-09-14 | Tibial plateau alignment handle |
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| CN201610825374.6A CN107811697B (en) | 2016-09-14 | 2016-09-14 | Tibial plateau alignment handle |
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| CN107811697A true CN107811697A (en) | 2018-03-20 |
| CN107811697B CN107811697B (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839839A (en) * | 2020-07-21 | 2020-10-30 | 北京市春立正达医疗器械股份有限公司 | Novel tibial platform test pad |
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| CN202568411U (en) * | 2012-04-27 | 2012-12-05 | 黄国富 | Combined tibial plateau former |
| CN102846416A (en) * | 2011-06-30 | 2013-01-02 | 德普伊产品公司 | Surgical instrument assemblies for use in surgically preparing a tibia for implantation of a prosthetic component |
| CN203750663U (en) * | 2014-03-19 | 2014-08-06 | 浙江嘉民塑胶有限公司 | Improved molding plastic collecting device |
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| CN2049170U (en) * | 1989-01-20 | 1989-12-13 | 徐炜 | Spanner type pipe wrench |
| EP0780093A1 (en) * | 1995-12-21 | 1997-06-25 | JOHNSON & JOHNSON PROFESSIONAL Inc. | Quick-release tibial tray handle |
| CN2399163Y (en) * | 1999-11-05 | 2000-10-04 | 徐永明 | Auto-locking tongs |
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| CN102846416A (en) * | 2011-06-30 | 2013-01-02 | 德普伊产品公司 | Surgical instrument assemblies for use in surgically preparing a tibia for implantation of a prosthetic component |
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| CN111839839A (en) * | 2020-07-21 | 2020-10-30 | 北京市春立正达医疗器械股份有限公司 | Novel tibial platform test pad |
| CN111839839B (en) * | 2020-07-21 | 2021-09-14 | 北京市春立正达医疗器械股份有限公司 | Novel tibial platform test pad |
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|---|---|
| CN107811697B (en) | 2020-02-07 |
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