CN209107539U - The locking device of bone fixation needle - Google Patents
The locking device of bone fixation needle Download PDFInfo
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- CN209107539U CN209107539U CN201721503332.7U CN201721503332U CN209107539U CN 209107539 U CN209107539 U CN 209107539U CN 201721503332 U CN201721503332 U CN 201721503332U CN 209107539 U CN209107539 U CN 209107539U
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- sliding shoe
- main piece
- locking device
- fixation hole
- along
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Abstract
Present disclose provides a kind of locking devices of bone fixation needle, it include: sliding shoe (11), the sliding shoe fixation hole (111) for running through the sliding shoe along first direction is provided on sliding shoe, sliding shoe fixation hole is used to pass through the sliding shoe along the first direction for the bone fixation needle；With intermediate mass (12), intermediate mass is flexibly connected with sliding shoe；And it is connected to two main piece (13) of intermediate mass two sides, main piece is provided with and runs through main piece of main piece of fixation hole (131) along first direction, main piece of fixation hole is used to pass through main piece along first direction for bone fixation needle, sliding shoe and main piece can in a second direction relative motion to enter the second mated condition, so that the projection of sliding shoe fixation hole and main piece of fixation hole in the plane perpendicular to first direction at least partly misplaces, to lock the bone fixation needle.
Description
Technical field
The utility model relates to bone fixation technical fields, and in particular, to a kind of locking device of bone fixation needle.
Background technique
In medical practice, the grasping and reset of bone are generally required using bone anchoring device.Specifically, especially to fracture
When being that long bone carries out the minimally invasive reduction of the fracture (as resetted robot reset or minimally invasive reset manually), need to fracture proximally and distally
Securely grasped.
In the mode of traditional treatment fracture, bone fixation needle is a kind of common selection.It is penetrated in backbone pulp cavity with control
The position of the backbone is made, it is easy to operate, fixed, it can be used as and object is auxiliarily fixed, but exist and be easy loosening, migration, skid off
Or the problem of stimulation local skin, influence therapeutic effect.
For being provided with the bone fixation needle of protruding portion, such as olive needle, protruding portion can play certain blocking restriction effect,
Thus there is certain reinforcing effect to the locking of bone fixation needle.
Utility model content
At least one of in order to solve the above-mentioned technical problem aspect, embodiment of the disclosure provide a kind of locking device,
To lock bone fixation needle.
According to one aspect of the disclosure, a kind of locking device of bone fixation needle is provided, comprising: sliding shoe, the sliding
The sliding shoe fixation hole for running through the sliding shoe along first direction is provided on block, the sliding shoe fixation hole is used to supply the bone
Fixed pin passes through the sliding shoe along the first direction；
Intermediate mass, the intermediate mass are flexibly connected with the sliding shoe；With
It is connected to two main piece of the intermediate mass two sides, described main piece is provided with along the first direction through the master
Main piece of fixation hole of block, the main piece of fixation hole are used to pass through described main piece along the first direction for the bone fixation needle,
Wherein, the sliding shoe and it is described main piece can along be different from the first direction second direction relative motion with
Into the first mated condition, so that the sliding shoe fixation hole and the main piece of fixation hole are perpendicular to the flat of the first direction
Projection on face is overlapped, so that the bone fixation needle passes through the sliding shoe and main piece described；And
The sliding shoe and it is described main piece can along the second direction relative motion with enter the second mated condition so that
The projection of the sliding shoe fixation hole and the main piece of fixation hole on the plane perpendicular to the first direction is at least partly wrong
Position, to lock the bone fixation needle.
According to some embodiments, the receiving portion for accommodating the sliding shoe is provided in the intermediate mass, wherein the receiving
The intermediate mass is run through along the first direction in portion.
According to some embodiments, bulge-structure, also, the side wall of the sliding shoe are provided on the side wall of described accommodation section
Upper setting is fluted, the bulge-structure and groove cooperation,
Alternatively, fluted, also, the sliding shoe is arranged on the side wall that described accommodation section is parallel to the second direction
Side wall on be provided with bulge-structure, the bulge-structure and groove cooperation.
According to some embodiments, there are gaps in the cooperation along the second direction for the sliding shoe and described accommodation section.
According to some embodiments, the sliding shoe fixation hole and/or the main piece of fixation hole have multiple.
According to some embodiments, the second direction is perpendicular to the first direction.
According to some embodiments, the locking device further includes driving assembly, for driving the sliding shoe relative to institute
Main piece is stated to move along the second direction.
According to some embodiments, the driving component include actuator and with the actuator cooperation matching hole,
Wherein, external screw thread is formed on the actuator, the matching hole includes the interior spiral shell being formed in the intermediate mass
Pit, for cooperating with the external screw thread being formed on the actuator.
According to some embodiments, the driving component has 2 groups.
According to some embodiments, handle is provided on the actuator.
According to some embodiments, the locking device further includes stopper, is provided on the stopper along described first
The stopper fixation hole of the stopper is run through in direction, and the stopper fixation hole is for abutting and stopping the bone fixation needle
Protruding portion.
According to some embodiments, the locking device further includes interconnecting piece, for connecting described main piece and the stopper.
According to some embodiments, the both ends of the interconnecting piece are respectively connected to described main piece above and on the stopper, or
The stopper and an one described main piece end being respectively formed as in the both ends of the interconnecting piece.The disclosure
The locking device of embodiment further locks bone fixation needle in conjunction with the blocking restriction effect of bone fixation needle protruding portion, can enhance
Bone fixation grips effect for backbone, effectively prevent adverse effect caused by sliding because of bone fixation needle.
Detailed description of the invention
It is described by below with reference to attached drawing to made by the disclosure, the other objects and advantages of the disclosure will be aobvious and easy
See, and can help to be fully understood by the disclosure.
Fig. 1 is the overall schematic of locking device according to the exemplary embodiment of the disclosure；
Fig. 2 is the decomposition diagram of locking device according to the exemplary embodiment of the disclosure；
Fig. 3 is the decomposition diagram of the fixation kit of locking device according to the exemplary embodiment of the disclosure；
Fig. 4 is that the sliding shoe of locking device according to the exemplary embodiment of the disclosure shows with what intermediate mass receiving portion cooperated
It is intended to；And
Fig. 5 is the main view of locking device according to the exemplary embodiment of the disclosure.
It should be noted that each attached drawing is not necessarily to scale to draw, but only not influence the signal that reader understands
Property mode is shown.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present disclosure clearer, below in conjunction with the embodiment of the present disclosure
Attached drawing, the technical solution of the embodiment of the present disclosure is clearly and completely described.Obviously, described embodiment is this public affairs
The a part of the embodiment opened, instead of all the embodiments.Based on described embodiment of the disclosure, ordinary skill
Personnel's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the range of disclosure protection.
Unless expressly stated otherwise, in the attached drawing of the embodiment of the present disclosure size of each structure and ratio do not represent it is actual
Size and ratio.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood.
It should be noted that, although term " first ", " second " etc. can be used herein to description various parts, component, member
Part, regions, layers, and/or portions, but these components, component, element, regions, layers, and/or portions should not be limited by these terms
System.But these terms are for mutually distinguishing a component, component, element, regions, layers, and/or portions with another.Thus,
For example, the first component discussed below, first component, first element, first area, first layer and/or first part can be by
Referred to as second component, second component, second element, second area, the second layer and/or second part, without departing from the disclosure
Introduction.
In addition, the similar word such as " comprising " or "comprising" means that the element or component that occur before the word are covered out
The element of the present word presented hereinafter perhaps component and its equivalent and be not excluded for other elements or component." connection " or " phase
The similar words such as company " are not limited to physics or mechanical connection, but may include electrical connection, either directly
It is connecing or indirect.
In the disclosure, for convenience, directional terminology " first direction ", " second direction " etc., Ying Li have been used
Solution, the directional terminology are only used for indicating relative positional relationship, after the absolute position for being described object changes, then should
Relative positional relationship may also correspondingly change.For example, in description according to the locking device of the bone fixation needle of the embodiment of the present disclosure
When, it is referred to that the locking device is actual using orientation, is indicated to be parallel to inserting for the bone fixation needle with " first direction "
The direction for entering direction indicates the direction of the direction of insertion perpendicular to the bone fixation needle with " second direction ".
In the disclosure, term " bone fixation needle " may include various types of needle or nail for fixing bone, for example,
" bone fixation needle " may include steinman pin, Kirschner wire and/or screw needle.Particularly, including be provided with protruding portion orthopaedics pin or
Nail, such as olive needle.
Fig. 1 shows the overall schematic of locking device according to the exemplary embodiment of the disclosure, and Fig. 2 is corresponding point
Solve schematic diagram.As seen from the figure, the locking device for locking bone fixation needle include fixation kit 1, actuator 2, interconnecting piece 3 and
Stopper 4.Wherein, the actuator 2 acts on the fixation kit 1, and 3 both ends of interconnecting piece are respectively connected to described solid
Determine on component 1 and the stopper 4.
Fig. 3 is the decomposition diagram of the fixation kit of locking device according to the exemplary embodiment of the disclosure.As schemed
Show, the fixation kit 1 is respectively placed in main piece 13 of 12 two sides of intermediate mass including sliding shoe 11, intermediate mass 12 and 2.Its
In, the intermediate mass 12 is flexibly connected with the sliding shoe 11.
Referring to Fig. 3, in embodiment of the disclosure, it is provided on the sliding shoe 11 along first direction through the sliding
The sliding shoe fixation hole 111 of block 11, the sliding shoe fixation hole 111 are used to pass through for the bone fixation needle along the first direction
The sliding shoe 11.Correspondingly, it is provided with and runs through described main piece 13 of main piece of fixation hole along the first direction for described main piece 13
131, the main piece of fixation hole 131 is used to pass through described main piece 13 along the first direction for the bone fixation needle.The disclosure is simultaneously
The quantity of the sliding shoe fixation hole 111 and/or the main piece of fixation hole 131 is not restricted, in the illustrated embodiment,
It has multiple, and size is that bore dia can accommodate orthopaedics and often use bone fixation needle.As an example, the sliding shoe is solid
The shape for determining hole 111 and/or the main piece of fixation hole 131 can be circle.But in other examples, it is also possible to
Other shapes, such as square.
In embodiment of the disclosure, sliding shoe 11 and main piece 13 can be along the second directions for being different from the first direction
Relative motion is to enter the first mated condition, so that sliding shoe fixation hole 111 and main piece of fixation hole 131 are perpendicular to described first
Projection in the plane in direction is overlapped, as shown in figure 4, so that bone fixation needle passes through sliding shoe 11 and main piece 13.In an example
In, the second direction is perpendicular to the first direction.
In embodiment of the disclosure, sliding shoe 11 and main piece 13 can enter the along the second direction relative motion
Two mated conditions, so that the sliding shoe fixation hole 111 and the main piece of fixation hole 131 are perpendicular to the flat of the first direction
Projection on face at least partly misplaces, to reduce the area of sliding shoe fixation hole and main piece of fixation hole cross section, to fasten
Clamp bone fixation needle.By using above-mentioned locking device, so that lock mode is easy to operate, and multiple fixations can be controlled simultaneously
Hole grips multiple bone fixation needles, and ensure that uniformity of the multiple positions clamped in stress, is conducive to
Therapeutic effect.
As shown in figure 3, being provided with the receiving portion 121 for accommodating the sliding shoe 11 in the intermediate mass 12.In an example
In, the intermediate mass 12 is run through along the first direction in described accommodation section 121, and kisses with the shape approximation of the sliding shoe 11
It closes.In the illustrated embodiment, described accommodation section 121 is approximately hexahedral shape, is opened wide along through direction, and by intermediate mass 12
Four sides inner wall enclose.
Referring to Fig. 3, bulge-structure 123, phase are provided on the side wall that described accommodation section 121 is parallel to the second direction
Ying Di is provided with the groove 112 with the bulge-structure 123 cooperation on the side wall of the sliding shoe 11.In the embodiment of diagram
In, the bulge-structure 123 is the quadrangular shape that one side is bonded with the inner wall of the intermediate mass 12.This bulge-structure with it is recessed
The mode of slot cooperation can enhance the cooperation intensity between sliding shoe 11 and intermediate mass receiving portion 121, improve system reliability.
Alternatively, groove can be set on the side wall that described accommodation section 121 is parallel to the second direction, accordingly
The bulge-structure with groove cooperation is arranged in ground on the side wall of the sliding shoe 11.
Fig. 4 is that the sliding shoe of locking device according to the exemplary embodiment of the disclosure shows with what intermediate mass receiving portion cooperated
It is intended to.As shown, the sliding shoe 11 and described accommodation section 121 in the cooperation along the second direction there are gap, so as to
Opposite sliding occurs hence into second mated condition with main piece 13 in sliding shoe 11.In addition, sliding shoe 11 carries out chamfering
Processing can prevent it from cooperating tension with intermediate mass 12 and blocking.
In embodiment of the disclosure, the locking device can also include driving assembly, for driving the sliding shoe
11 move relative to described main piece 13 along the second direction.Referring to Fig. 3, the driving component include actuator 2 and with it is described
The matching hole 122 that actuator 2 cooperates.Wherein, external screw thread is formed on the actuator 2, the matching hole 122 includes being formed in
Internal thread hole 122 in the intermediate mass 12, for cooperating with the external screw thread being formed on the actuator 2.The matching hole
122 extend along the second direction, in the illustrated embodiment, there is 2.Thus, it is possible to provide two 2 (not shown) of actuator
It is matched, a use is selected when facilitating work or is used simultaneously, convenient and efficient.And it is provided with handle on the actuator 2,
Facilitate driving operate and can be laborsaving.
In embodiment of the disclosure, actuator 2 is screwed by screw and the cooperation of internal thread hole 122, and is passed through interior
Threaded hole 122 touches 11 surface of sliding shoe.Since the receiving portion 121 of sliding shoe 11 and intermediate mass 12 is along the second direction
Cooperation there are gaps, under further screw, actuator 2 push sliding shoe 11 moved along the second direction, and
Intermediate mass 12 and main piece it is 13 fixed.In this way, there is the opposite fortune along the second direction between sliding shoe 11 and main piece 13
It is dynamic.By this method, the sliding shoe fixation hole 111 and the main piece of fixation hole 131 are in the plane perpendicular to the first direction
On projection dislocation, into the second mated condition, and then realize the fixation to bone fixation needle.Meanwhile actuator 2 and internal thread hole
Cooperated between 122 by spiral fixing compact, maintains the stabilization of second mated condition.
Referring to Fig. 2 and Fig. 5, locking device according to the exemplary embodiment of the disclosure includes interconnecting piece 3 and stopper 4.
Wherein, the shape of the stopper 4 is similar to described main piece 13.In one example, the both ends of the interconnecting piece 3 and the blocking
Block 4 is respectively arranged with along the perforative interconnecting piece fixation hole 31 of the first direction and stopper fixation hole 41.The interconnecting piece is solid
Determine hole 31 and the stopper fixation hole 41 corresponds to the main piece of fixation hole 131.Also, the ruler of the stopper fixation hole 41
The very little protruding portion 61 less than on bone fixation needle, can stop it to pass through, therefore play the role of stopping to limit.
In one embodiment, the both ends of the interconnecting piece 3 are respectively connected on described main piece 13 of the fixation kit 1
On the stopper 4.Firstly, the intermediate mass 12 of the fixation kit 1 and it is main piece 13 described on have several corresponding apertures, can
It is fixed via fixing piece (such as screw), it the intermediate mass 12 and is engaged to its internal sliding shoe 11 at this time and is placed in described
An independent entirety is collectively formed in main piece 13 of 12 two sides of intermediate mass, i.e., the described fixation kit 1.Secondly, 1 He of fixation kit
The first end of the interconnecting piece 3 is additionally provided with part corresponding aperture, and the fixation kit 1 cooperation is fixed to the interconnecting piece
3 first end, at this point, the main piece of fixation hole 131 and the interconnecting piece fixation hole 31 correspond.Similarly, the blocking
Block is connected to the second end of the interconnecting piece 3 also by corresponding aperture and fixing piece.
In another embodiment, the both ends of the interconnecting piece 3 are respectively formed with described main piece 13 and the stopper 4,
It is connect without individually main piece 13 and stopper 4 with the interconnecting piece 3.
In embodiment of the disclosure, the interconnecting piece 3 is set as arc, both ends be respectively set to described main piece 13 and
The groove portion that the stopper 4 cooperates.Also, the first end of the interconnecting piece 3 and the line of the second end can determine bone fixation
Needle passes through direction, along with gripping for first end fixation kit limits with the blocking of the second end stopper, jointly
The multiple locking of bone fixation needle is realized, it is stable and firm.
Below with reference to Fig. 1-5, the operating process of the locking device of the embodiment of the present disclosure is described.
Firstly, sliding shoe 11 is engaged to the receiving portion 121 of intermediate mass 12, at this point, the sidewall notches of sliding shoe 11 are (or convex
Rise) projected side wall (or groove) part 123 of part 112 and receiving portion 121 fastens, enhance matching for sliding shoe 11 and intermediate mass 12
Close intensity.
Then, 12 two sides of intermediate mass are respectively connected to by 2 main piece 13, and fixing piece is inserted into main piece 13 and intermediate mass 12
Corresponding aperture in fastened, at this point, sliding shoe, intermediate mass and main piece collectively constitute fixation kit 1.
Then, fixing piece is inserted into the corresponding aperture of fixation kit 1 and 3 first end of interconnecting piece and is fastened, at this point, main
Block fixation hole and interconnecting piece fixation hole correspond.Similarly, stopper 4 is connected to the second end of interconnecting piece 3, makes stopper
Fixation hole and interconnecting piece fixation hole correspond.
Finally, the rectilinear direction that bone fixation needle determines between the both ends of interconnecting piece 3 is sequentially inserted into each fixation hole, make to hinder
Block 4 stops the protruding portion 61 for limiting bone fixation needle；And actuator 2 is operated, make sliding shoe 11 and main piece 13 along described second
Direction relative motion is to enter the second mated condition, so that the sliding shoe fixation hole 111 and the main piece of fixation hole 131 are hanging down
It directly at least partly misplaces in the projection in the plane of the first direction, is intersected with reducing sliding shoe fixation hole and main piece of fixation hole
Partial area realizes the fixation to bone to be fixed so that anchorage clip handles bone fixation needle.
For embodiment of the disclosure, it is also necessary to explanation, in the absence of conflict, embodiment of the disclosure and reality
Applying the feature in example can be combined with each other to obtain new embodiment.
More than, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, the disclosure
Protection scope should be subject to the protection scope in claims.
Claims (13)
1. a kind of locking device of bone fixation needle, which is characterized in that the locking device includes:
Sliding shoe (11) is provided with the sliding shoe along first direction through the sliding shoe (11) on the sliding shoe (11) and fixes
Hole (111), the sliding shoe fixation hole (111) are used to pass through the sliding shoe along the first direction for the bone fixation needle
(11)；
Intermediate mass (12), the intermediate mass (12) are flexibly connected with the sliding shoe (11)；With
Two main piece (13) of the intermediate mass (12) two sides are connected to, main piece (13) are provided with to be passed through along the first direction
Wear the main piece of fixation hole (131) of main piece (13), the main piece of fixation hole (131) is used for for the bone fixation needle along described the
One direction passes through main piece (13),
Wherein, the sliding shoe (11) and main piece (13) can be along the opposite fortune of second direction for being different from the first direction
It moves to enter the first mated condition, so that the sliding shoe fixation hole (111) and the main piece of fixation hole (131) are perpendicular to institute
The projection stated in the plane of first direction is overlapped, so that the bone fixation needle is across the sliding shoe (11) and main piece described
(13)；And
The sliding shoe (11) and main piece (13) can along the second direction relative motion to enter the second mated condition,
So that the sliding shoe fixation hole (111) and the main piece of fixation hole (131) are on the plane perpendicular to the first direction
Projection at least partly misplaces, to lock the bone fixation needle.
2. locking device according to claim 1, which is characterized in that be provided in the intermediate mass (12) and accommodate the cunning
The receiving portion (121) of motion block (11), wherein described accommodation section (121) run through the intermediate mass (12) along the first direction.
3. locking device according to claim 2, which is characterized in that be parallel to described second in described accommodation section (121)
It is provided on the side wall in direction bulge-structure (123), also, fluted (112), institute is set on the side wall of the sliding shoe (11)
Bulge-structure (123) and the groove (112) cooperation are stated,
Alternatively, fluted, also, the sliding is arranged on the side wall that described accommodation section (121) are parallel to the second direction
Bulge-structure, the bulge-structure and groove cooperation are provided on the side wall of block (11).
4. the locking device according to any one of claim 2-3, which is characterized in that the sliding shoe (11) and the appearance
Receive portion (121) in the cooperation along the second direction there are gaps.
5. locking device according to any one of claim 1-3, which is characterized in that the sliding shoe fixation hole (111)
And/or the main piece of fixation hole (131) have it is multiple.
6. locking device according to any one of claim 1-3, which is characterized in that the second direction is perpendicular to described
First direction.
7. locking device according to any one of claim 1-3, which is characterized in that further include driving assembly, for driving
It moves the sliding shoe (11) and is moved relative to main piece (13) along the second direction.
8. locking device according to claim 7, which is characterized in that the driving component include actuator (2) and with institute
The matching hole (122) of actuator (2) cooperation is stated,
Wherein, external screw thread is formed on the actuator (2), the matching hole (122) includes being formed in the intermediate mass (12)
In internal thread hole, for cooperating with the external screw thread that is formed on the actuator (2).
9. locking device according to claim 7, which is characterized in that the driving component has 2 groups.
10. locking device according to claim 8, which is characterized in that be provided with handle on the actuator (2).
11. locking device according to any one of claim 1-3, which is characterized in that the locking device further includes resistance
Block (4) is provided with the stopper fixation hole for running through the stopper (4) along the first direction on the stopper (4)
(41), the stopper fixation hole (41) is used to abut and stop the protruding portion (61) of the bone fixation needle.
12. locking device according to claim 11, which is characterized in that the locking device further includes interconnecting piece (3), is used
In connection main piece (13) and the stopper (4).
13. locking device according to claim 12, which is characterized in that the both ends of the interconnecting piece (3) are respectively connected to
On main piece (13) and on the stopper (4),
Alternatively, the stopper (4) and one main piece (13) one be respectively formed as in the both ends of the interconnecting piece (3)
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721503332.7U CN209107539U (en) | 2017-11-10 | 2017-11-10 | The locking device of bone fixation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721503332.7U CN209107539U (en) | 2017-11-10 | 2017-11-10 | The locking device of bone fixation needle |
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| Publication Number | Publication Date |
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| CN209107539U true CN209107539U (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721503332.7U Active CN209107539U (en) | 2017-11-10 | 2017-11-10 | The locking device of bone fixation needle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854169A (en) * | 2017-11-10 | 2018-03-30 | 唐佩福 | The locking device of bone fixation pin |
-
2017
- 2017-11-10 CN CN201721503332.7U patent/CN209107539U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107854169A (en) * | 2017-11-10 | 2018-03-30 | 唐佩福 | The locking device of bone fixation pin |
| CN107854169B (en) * | 2017-11-10 | 2024-03-08 | 中国人民解放军总医院 | Locking device for bone fixation needle |
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