CN207613856U - A kind of universal lock mechanism and proximal humerus bone plate - Google Patents
A kind of universal lock mechanism and proximal humerus bone plate Download PDFInfo
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- CN207613856U CN207613856U CN201720547283.0U CN201720547283U CN207613856U CN 207613856 U CN207613856 U CN 207613856U CN 201720547283 U CN201720547283 U CN 201720547283U CN 207613856 U CN207613856 U CN 207613856U
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- hole
- lock
- retaining ring
- universal
- head
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Abstract
The utility model discloses a kind of universal lock mechanism and proximal humerus bone plate, the universal lock mechanism includes universal hole, retaining ring, lock screw and bayonet lock, the spherical shape of outer wall of retaining ring, the inner wall of retaining ring and the head threads of lock screw connect, universal hole includes the first hole and the second hole, first hole and the second hole are mutually penetrated along axis, in this way, each self-forming in first hole and the second hole accordingly connects circular arc, and each circular arc extends beyond 180 °, first hole is in spherical, and it is matched with the outer wall of retaining ring, second hole is for placing bayonet lock, bayonet lock is for locking retaining ring, due to the spherical shape of the outer wall of retaining ring, and first hole in spherical, therefore, lock screw can realize multidirectional be screwed into, and the screw-in convenient for lock screw and back-out.
Description
Technical field
The utility model is related to medical instruments field more particularly to a kind of universal lock mechanism and proximal humerus bones plate.
Background technology
Proximal humeral fracture is a kind of common classification of fracture, and when treating fracture, it is close to fix humerus using bone plate
The fracture portions at end make it restore anatomical structure, are generally arranged on the bone plate for fixing proximal humerus part in the prior art
There are several threaded holes, by the mounting screw in threaded hole thus by plate fixation in proximal humerus.But due to each
The direction of threaded hole is designed according to predetermined direction, therefore can only be according to the axis side of threaded hole when fixing screws screw-in
To being installed, but during actual operation, the position of fracture is often uncertain, therefore uses the fixed-direction
Just there is larger limitation when the bone plate of threaded hole makees proximal humeral fracture operation.
To solve the above-mentioned problems, existing bone plate, which uses, can meet the multi-direction threaded hole for being screwed into demand of screw,
Such as a kind of multi-direction locking steel plate of proximal humerus disclosed in Chinese patent (CN2015105206306) comprising threaded hole, spiral shell
Offer 3~6 notch on the hole wall of pit, the notch threadingly hole it is axially extending.Hole wall is divided into several sections by the notch, hand
When art, doctor can select the angle that is screwed into of screw according to the specific location of fracture line, which direction no matter be threaded towards, always there is one section
The internal thread of hole wall is mutually screwed with screw, remaining a few sector hole wall squeezes screw, to realize multi-direction locking.
In practical applications, there are following technical problems for above-mentioned threaded hole：
First, multi-direction be screwed into of screw is to be realized by the notch on threaded hole, therefore the quantity of notch determines
Screw is screwed into direction, but the quantity of notch is certain, and then limits the multi-direction of screw and be screwed into.
And since threaded hole meets screw multi-direction the needs of being screwed into, when threaded hole and screw screw, screw thread
The axis in hole and the axis of screw can be misaligned, and position relationship at an angle, in addition, screw can be partially embedded into notch
It is interior, accordingly, need larger power that screw could be threaded in or out to threaded hole, or even cause killing for screw and threaded hole.
In addition, when threaded hole and screw screw, there is threaded hole the internal thread of an at least sector hole wall mutually to be screwed with screw,
Remaining a few sector hole walls squeeze screw, therefore, can have gap between remaining a few sector hole wall and screw, cause threaded hole and
Screw fit it is not close.
Utility model content
The utility model solves the problems, such as that the technical solution of above-mentioned insufficient sum in the prior art is：Provide a kind of Universal lock
Determine mechanism and proximal humerus bone plate, wherein universal lock mechanism can realize that lock screw is multi-direction and be screwed into, and effectively prevent
Situations such as lock screw and bone plate are killed, the screw-in convenient for lock screw and back-out, and proximal humerus bone plate have this ten thousand
To locking mechanism.
To achieve the above objectives, the utility model provides a kind of universal lock mechanism, including universal hole, retaining ring, lock
Determine screw and bayonet lock；
The spherical shape of outer wall of the retaining ring, the inner wall of the retaining ring and the head threads of the lock screw connect
It connects；
The universal hole includes the first hole and the second hole, and first hole and second hole are mutually penetrated along axis, this
Sample, first hole and each self-forming in the second hole accordingly connect circular arc, and each circular arc extends beyond 180 °, first hole
It in spherical, and is matched with the outer wall of the retaining ring, second hole is for placing the bayonet lock, and the bayonet lock is for locking
The retaining ring.
Further, a notch is additionally provided in the retaining ring, the notch extends to institute from the outer wall of the retaining ring
The inner wall of retaining ring is stated, the notch coordinates with the bayonet lock.
Further, it is provided with a card slot on the end face of at least one of two end faces of the retaining ring.
The utility model additionally provides a kind of proximal humerus bone plate, includes the plate body with upper and lower surface, institute
It states and is provided with universal lock mechanism on plate body, wherein the universal hole extends to lower surface from the upper surface of the plate body；
The plate body includes head and cadre, and the head setting in curved surface, the head is opposite with humerus head, the head
Lower surface is arc-shaped, and is adapted with the shape of humerus head, and the cadre is opposite with the body of humerus, and the cadre lower surface is in arc
Shape, and be adapted with the body of humerus.
Further, the universal lock mechanism is located on the head.
Further, threaded hole is additionally provided on the head, the threaded hole extends to down from the upper surface of the plate body
Surface.
Further, guide pinhole is additionally provided on the head, the guide pinhole extends to down from the upper surface of the plate body
Surface.
Further, eight word holes are provided on the cadre, eight word hole extends to following table from the upper surface of the plate body
Face；
Eight word hole includes lock hole and pressurization hole, and the lock hole and the pressurization hole are mutually penetrated along axis, this
Sample, each self-forming of the lock hole and the pressurization hole accordingly connect circular arc, and each circular arc extends beyond 180 °, in addition, the lock
Determine hole and be provided with internal thread, the pressurization hole is smooth inside, also, the pressurization hole is provided with pressurization curved surface.
Further, kidney slot is additionally provided on the cadre, the kidney slot both ends are both provided with pressurization curved surface, the waist
Shape hole extends to lower surface from the upper surface of the plate body, also, the kidney slot is located at the universal hole and eight word hole
Between.
Further, the lower surface of the cadre is provided with relief groove.
According to preferred embodiment, the utility model offers the advantage that：
The universal lock mechanism of the utility model can realize that lock screw is multi-direction and be screwed into, and effectively prevent lock screw
Situations such as being killed with bone plate, the screw-in convenient for lock screw and back-out, and proximal humerus bone plate is in addition to having the Universal lock
Determine outside mechanism, also there is threaded hole, wherein universal lock mechanism can realize that the screw-in of lock screw variable-angle, threaded hole can
Realize that the screw-in of lock screw fixed angle is provided most by the cooperation of universal lock mechanism and threaded hole for fracture fixation
Big stability.
The utility model is further illustrated with reference to the accompanying drawings and embodiments.
Description of the drawings
Fig. 1 is the structural schematic diagram of universal lock mechanism described in the utility model；
Fig. 2 is the structural schematic diagram of retaining ring described in the utility model；
Fig. 3 is the structural schematic diagram in universal hole described in the utility model；
Fig. 4 is the schematic diagram that proximal humerus bone plate described in the utility model is applied to humerus；
Fig. 5 is the structural schematic diagram of proximal humerus bone plate described in the utility model；
Fig. 6 is the rearview of proximal humerus bone plate described in the utility model.
Specific implementation mode
It is described below for disclosing the utility model so that those skilled in the art can realize the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It is retouched following
The basic principle of the utility model defined in stating can be applied to other embodiments, deformation scheme, improvement project, etc. Tongfangs
The other technologies scheme of case and spirit and scope without departing from the utility model.
As shown in Figure 1, the universal lock mechanism includes universal hole 100, retaining ring 200, lock screw 300 and bayonet lock
400。
As shown in Fig. 2, the spherical shape of the outer wall of the retaining ring 200, the inner wall of retaining ring 200 are provided with internal thread,
For being connect with the head threads of lock screw 300, therefore, the lock screw 300 of the utility model is outside its head is provided with
The screw of screw thread, it will be appreciated by persons skilled in the art that the head of the lock screw 300 can be in cone-shaped, ball-type or circle
Cylindricality etc..
A notch 201 is additionally provided in retaining ring 200, notch 201 extends to retaining ring 200 from the outer wall of retaining ring 200
Inner wall, the notch 201 can make retaining ring 200 exist elasticity.
As shown in figure 3, the universal hole 100 includes the first hole 101 and the second hole 102, the first hole 101 and the second hole 102
It is mutually penetrated along axis, in this way, the first hole 101 and 102 each self-forming of the second hole accordingly connect circular arc, each circular arc extends beyond
180°。
First hole 101 with the outer wall of retaining ring 200 for matching, i.e. the first hole 101 is in spherical, due to retaining ring 200
The spherical shape of outer wall and the first hole 101 in spherical, therefore, retaining ring 200 in the first hole 101 can 360 ° of rotations, preferably
Each 20 ° of the scope of activities in left and right can be achieved in ground, retaining ring 200 in each active face.
Further, thread is may be provided on the inner wall in the first hole 101, for increasing between the first hole 101 and retaining ring 200
Frictional force.
Second hole 102 is for placing bayonet lock 400, when bayonet lock 400 is placed in the second hole 102, due to 101 He of the first hole
Second hole 102 is connected, and therefore, a part for bayonet lock 400 can be located in the first hole 101, which can coordinate with notch 201,
Retaining ring 200 is blocked, prevents retaining ring 200 from rotating along circumferential direction.
In the present embodiment, the axis in the first hole 101 and the axis in the second hole 102 can be mutually parallel.
In other embodiments, the axis in the first hole 101 and the axis in the second hole 102 can be not parallel.
Referring to figs. 1 to Fig. 3, when the universal lock mechanism assembles, retaining ring 200 is placed into the first hole 101 first,
And the notch of retaining ring 200 201 is corresponding with the second hole 102, then bayonet lock 400 is placed into the second hole 102, realizes locking
The locking of ring 200.
Hereafter, the angle entered according to lock screw 300, rotation lock ring 200, and enable its axis and lock screw
The direction of 300 entrance is consistent, finally, will be in 300 precession retaining ring 200 of lock screw.Since retaining ring is only leaned in the rotation of angle
200 and first hole 101 cooperation realize, the case where being killed thus, there is no the inner wall on 300 head of lock screw and retaining ring 200,
Screw-in convenient for lock screw 300 and back-out.
In above-mentioned steps, retaining ring 200, which is placed into the first hole 101 or is taken out out of first hole 101, can be used a word knife
Equal tools are realized, with reference to Fig. 2, are provided with a card slot 202 on the end face of at least one of 200 two end faces of retaining ring, the card slot
202 and one the tools such as word knife coordinate.
Universal lock mechanism described here is not limited to be used for proximal humerus bone plate, it may also be used for other devices.For
Description the utility model, it is following to refer only to be used for proximal humerus bone plate.
The utility model additionally provides a kind of proximal humerus bone plate, as shown in Figure 4 and Figure 5, the proximal humerus synthetism
Plate includes the plate body 500 for having upper and lower surface, and plate body 500 can be integrally formed structures, including head 501 and cadre
502, head 501 connects cadre 502, and the opposite end that cadre 502 connects head 501 is arranged in wedge.Wherein, head 501 is in song
Face is arranged, and head 501 is opposite with humerus head, and 501 lower surface of head is arc-shaped, and is adapted with the shape of humerus head, and cadre 502
Opposite with the body of humerus, 502 lower surface of cadre is arc-shaped, and is adapted with the body of humerus.
As shown in figure 5, being provided with universal hole 100, threaded hole 600 and guide pinhole 700, universal hole in the first contact 501
100, threaded hole 600 and guide pinhole 700 extend to lower surface from the upper surface of plate body 500.Wherein, universal hole 100 can be with lock
Tight ring 200, lock screw 300 and bayonet lock 400 coordinate, and realize the locking of 300 variable-angle of lock screw；Threaded hole 600 is realized
The locking of 300 fixed angle of lock screw is provided by the combination in universal hole 100 and threaded hole 600 for fixed plate body 500
The stability of bigger.In addition, guide pinhole 700 can coordinate with guide pin, plate body 500 is fixed on according to guide pin direction on bone.
Universal hole 100 above-mentioned, the quantity of threaded hole 600 and guide pinhole 700 and position can be set according to actual conditions
It sets, by taking the present embodiment as an example, the quantity in universal hole 100 is five, and the quantity of threaded hole 600 is one, the quantity of guide pinhole 700
It is five.Wherein, which is looped around around threaded hole 600, another universal hole 100 is located at 501 He of head
Between cadre 502.
In other embodiments, head 501 is only provided with universal hole 100 and guide pinhole 700.
Kidney slot 800 and eight word holes 900 are provided on cadre 502, kidney slot 800 and eight word holes 900 are along 502 axis of cadre
It is arranged to array, which can be one, and 800 both ends of kidney slot are both provided with pressurization curved surface, and are arranged in universal hole
100 and eight between word hole 900, and the quantity in eight word holes 900 can be four.
Eight word holes 900 include lock hole 901 and pressurization hole 902, and lock hole 901 and pressurization hole 902 are mutually penetrated along axis,
In this way, lock hole 901 and pressurization 902 each self-forming of hole accordingly connect circular arc, each circular arc extends beyond 180 °.901 He of lock hole
In pressurization hole 902, wherein lock hole 901 is provided with internal thread, and pressurization hole 902 is smooth inside, also, hole 902 of pressurizeing is set
It is equipped with pressurization curved surface.
It will be appreciated by persons skilled in the art that the size in four eight word holes 900 above-mentioned can be different.
As described in Figure 6, the lower surface of cadre 502 is provided with relief groove 5021, which effectively prevent cadre 502
Lower surface vascular compression etc..
In the present embodiment, relief groove 5021 is arranged at the edge of cadre 502, and is symmetrical arranged.
Embodiment described above is merely to illustrate the technological thought and feature of the utility model, and its object is to make ability
Technical staff in domain can understand the content of the utility model and implement according to this, only cannot limit this practicality with the present embodiment
Novel the scope of the claims uses, i.e., all according to same changes or modifications made by the revealed spirit of the utility model, still falls at this
In the scope of the claims of utility model.
Claims (10)
1. a kind of universal lock mechanism, which is characterized in that including universal hole (100), retaining ring (200), lock screw (300) and
Bayonet lock (400)；
The spherical shape of outer wall of the retaining ring (200), inner wall and the lock screw (300) of the retaining ring (200)
Head threads connect；
The universal hole (100) includes the first hole (101) and the second hole (102), first hole (101) and second hole
(102) it is mutually penetrated along axis, in this way, first hole (101) and second hole (102) each self-forming accordingly connect circle
Arc, and each circular arc extends beyond 180 °, first hole (101) is in spherical, and is matched with the outer wall of the retaining ring (200)
It closes, second hole (102) is for placing the bayonet lock (400), and the bayonet lock (400) is for locking the retaining ring (200).
2. universal lock mechanism as described in claim 1, which is characterized in that be additionally provided with one on the retaining ring (200) and lack
Mouth (201), the notch (201) extends to the inner wall of the retaining ring (200) from the outer wall of the retaining ring (200), described
Notch (201) coordinates with the bayonet lock (400).
3. universal lock mechanism as described in claim 1, which is characterized in that in (200) two end faces of the retaining ring extremely
It is provided with a card slot (202) on a few end face.
4. a kind of proximal humerus bone plate, which is characterized in that include the plate body (500) with upper and lower surface, the plate
Universal lock mechanism as described in any one of claims 1 to 3 is provided on body (500), wherein the universal hole (100) from
The upper surface of the plate body (500) extends to lower surface；
The plate body (500) includes head (501) and cadre (502), and the head (501) is opposite with humerus head, the head
(501) lower surface is arc-shaped, and is adapted with the shape of humerus head, and the cadre (502) is opposite with the body of humerus, the cadre
(502) lower surface is arc-shaped, and is adapted with the body of humerus.
5. proximal humerus bone plate as claimed in claim 4, which is characterized in that the universal lock mechanism is located at the head
(501) on.
6. proximal humerus bone plate as claimed in claim 4, which is characterized in that be additionally provided with screw thread on the head (501)
Hole (600), the threaded hole (600) extend to lower surface from the upper surface of the plate body (500).
7. proximal humerus bone plate as claimed in claim 4, which is characterized in that be additionally provided with guide pin on the head (501)
Hole (700), the guide pinhole (700) extend to lower surface from the upper surface of the plate body (500).
8. proximal humerus bone plate as claimed in claim 4, which is characterized in that be provided with eight word holes on the cadre (502)
(900), eight word hole (900) extend to lower surface from the upper surface of the plate body (500)；
Eight word hole (900) includes lock hole (901) and pressurizes hole (902), the lock hole (901) and the pressurization hole
(902) it is mutually penetrated along axis, in this way, the lock hole (901) and each self-forming of the pressurization hole (902) accordingly connect circle
Arc, each circular arc extend beyond 180 °, in addition, the lock hole (901) is provided with internal thread, the pressurization hole (902) is smooth
Inside, also, the pressurization hole (902) is provided with pressurization curved surface.
9. proximal humerus bone plate as claimed in claim 8, which is characterized in that be additionally provided with kidney-shaped on the cadre (502)
Hole (800), kidney slot (800) both ends are both provided with pressurization curved surface, and the kidney slot (800) is from the plate body (500)
Upper surface extends to lower surface, also, the kidney slot (800) be located at the universal hole (100) and eight word hole (900) it
Between.
10. proximal humerus bone plate as claimed in claim 4, which is characterized in that the lower surface of the cadre (502) is provided with
Relief groove (5021).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720547283.0U CN207613856U (en) | 2017-05-17 | 2017-05-17 | A kind of universal lock mechanism and proximal humerus bone plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720547283.0U CN207613856U (en) | 2017-05-17 | 2017-05-17 | A kind of universal lock mechanism and proximal humerus bone plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207613856U true CN207613856U (en) | 2018-07-17 |
Family
ID=62818587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720547283.0U Active CN207613856U (en) | 2017-05-17 | 2017-05-17 | A kind of universal lock mechanism and proximal humerus bone plate |
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| Country | Link |
|---|---|
| CN (1) | CN207613856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758221A (en) * | 2019-03-29 | 2019-05-17 | 大博医疗科技股份有限公司 | A kind of compound locking bone fracture plate |
| CN115844508A (en) * | 2023-02-22 | 2023-03-28 | 首都医科大学附属北京同仁医院 | Anatomical locking steel plate for minimally invasive treatment of humeral fracture |
-
2017
- 2017-05-17 CN CN201720547283.0U patent/CN207613856U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109758221A (en) * | 2019-03-29 | 2019-05-17 | 大博医疗科技股份有限公司 | A kind of compound locking bone fracture plate |
| CN109758221B (en) * | 2019-03-29 | 2023-10-24 | 大博医疗科技股份有限公司 | Composite locking bone fracture plate |
| CN115844508A (en) * | 2023-02-22 | 2023-03-28 | 首都医科大学附属北京同仁医院 | Anatomical locking steel plate for minimally invasive treatment of humeral fracture |
| CN115844508B (en) * | 2023-02-22 | 2023-05-09 | 首都医科大学附属北京同仁医院 | Anatomical locking plate for minimally invasive treatment of humerus fractures |
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