CN208936998U - Bone plate lock hole detection device - Google Patents
Bone plate lock hole detection device Download PDFInfo
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- CN208936998U CN208936998U CN201821973045.7U CN201821973045U CN208936998U CN 208936998 U CN208936998 U CN 208936998U CN 201821973045 U CN201821973045 U CN 201821973045U CN 208936998 U CN208936998 U CN 208936998U
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- bone plate
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Abstract
The utility model discloses a kind of bone plate lock hole detection devices, it include: detection piece, the detection piece has the conical outer wall of the bottom outlet location fit for the lock hole with the bone plate and can be pierced by the traversing through end of bone plate, and the traversing through end is located at the small end of the conical outer wall；Testing agency, the testing agency is for detecting the size that the traversing through end is pierced by the bone plate.Bone plate lock hole detection device provided by the utility model, the size of bottom diameter affects the size that traversing through end is pierced by bone plate: when bottom diameter is bigger than normal, the size that traversing through end is pierced by bone plate is larger, and when bottom diameter is less than normal, the size that traversing through end is pierced by bone plate is smaller.Therefore, the size that traversing through end is pierced by bone plate is detected by testing agency, according to the actual size of size, that is, can determine whether the concrete condition of bottom diameter, without carrying out two sides detection to the same lock hole by drift and no-go gage, effectively increase detection efficiency.
Description
Technical field
The utility model relates to technical field of medical equipment, in particular to a kind of bone plate lock hole detection device.
Background technique
As shown in Figures 1 and 2, there is lock hole 11, the depth of lock hole 11 directly decides on locking-typed bone plate 1
Locking effect after operation between bone plate 1 and bone.As Figure 2-Figure 5, lock hole 11 is conical screw hole, lock screw
2 head 21 is the pyramidal structure matched with lock hole 11.When lock hole 11 is partially deep, the bottom diameter d of conical screw hole
Less than normal, scheduled lock depth will be not achieved in lock screw 2, reduce surgical effect, in some instances it may even be possible to will lead to operative failure；Work as lock
Determine hole 11 it is partially shallow when, the bottom diameter d of conical screw hole is bigger than normal, lock screw 2 screw in bone depth can be excessive, it is possible to meeting
Other bones and tissue are injured, malpractice is caused.Wherein, the bottom outlet of conical screw hole is the hole of one end of its minor diameter.
Usually the method for detection 11 depth of lock hole is logical only for the bottom outlet inspection for being inserted into lock hole 11 using divider, and drift leads to
And when no-go gage stops, the bottom diameter d of lock hole 11 meets regulation, then lock hole 11 is qualified.Therefore, in detection lock hole 11
When, drift and no-go gage are required to detect the same lock hole, equal qualification Shi Caineng obtain 11 qualification of lock hole as a result,
Detection efficiency is not high.
Therefore, how detection efficiency is improved, be the technical problem to be solved by the personnel in the art.
Utility model content
In view of this, the present invention provides a kind of bone plate lock hole detection devices, to improve detection efficiency.
To achieve the above object, the utility model provides the following technical solutions:
A kind of bone plate lock hole detection device, comprising:
Detection piece, the detection piece have the conical outer wall of the bottom outlet location fit for the lock hole with the bone plate
And it can be pierced by the traversing through end of bone plate, the traversing through end is located at the small end of the conical outer wall；
Testing agency, the testing agency is for detecting the size that the traversing through end is pierced by the bone plate.
It can be seen from the above technical scheme that bone plate lock hole detection device provided by the utility model, passes through inspection
Taper can all be influenced when lock hole is partially deep or partially shallow by surveying the hole wall location fit of the conical outer wall of part and the lock hole of bone plate
The size of the bottom diameter of threaded hole, due to bottom diameter be lock hole minimum dimension, the conical outer wall of detection piece with
After the bottom outlet location fit of lock hole, i.e., so that detection piece is positioned relative to bone plate.The size of bottom diameter, which affects, to be pierced by
End is pierced by the size of bone plate: when bottom diameter is bigger than normal, the size that traversing through end is pierced by bone plate is larger, when bottom diameter is less than normal,
The size that traversing through end is pierced by bone plate is smaller.Therefore, the size that traversing through end is pierced by bone plate is detected by testing agency, according to ruler
Very little actual size can determine whether the concrete condition (bigger than normal, less than normal or qualified) of bottom diameter, without passing through drift and no-go gage pair
The same lock hole carries out two sides detection, effectively increases detection efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic view of the front view of bone plate；
Fig. 2 is a kind of overlooking structure diagram of bone plate；
Fig. 3 is a kind of structural schematic diagram of the lock hole of bone plate；
Fig. 4 is a kind of structural schematic diagram of lock screw；
Fig. 5 is the fit structure schematic diagram of a kind of bone plate and lock screw；
Fig. 6 is the structural schematic diagram of bone plate lock hole detection device provided by the embodiment of the utility model；
Fig. 7 is the correcting state schematic diagram of bone plate lock hole detection device provided by the embodiment of the utility model；
Fig. 8 is the fit structure schematic diagram of detection piece provided by the embodiment of the utility model and bone plate.
Specific embodiment
The utility model discloses a kind of bone plate lock hole detection devices, to improve detection efficiency.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 6, Fig. 7 and Fig. 8 are please referred to, the utility model embodiment provides a kind of bone plate lock hole detection device, packet
Include detection piece 7 and testing agency.Detection piece 7 has the conical outer wall of the bottom outlet location fit for the lock hole with bone plate 1
And it can be pierced by the traversing through end of bone plate 1, traversing through end is located at the small end of conical outer wall；Testing agency is pierced by for detecting traversing through end
The size h of bone plate 1.
Bone plate lock hole detection device provided by the embodiment of the utility model, conical outer wall by detection piece 7 with connect
The hole wall location fit of the lock hole of bone plate 1 can all influence the bottom diameter d of conical screw hole when lock hole is partially deep or partially shallow
Size, due to the minimum dimension that bottom diameter d is lock hole, the bottom outlet of the conical outer wall of detection piece 7 and lock hole is fixed
After the cooperation of position, i.e., so that detection piece 7 is positioned relative to bone plate 1.The size of bottom diameter d affects traversing through end and is pierced by bone plate
1 size h: when bottom diameter d is bigger than normal, the size h that traversing through end is pierced by bone plate 1 is larger, when bottom diameter d is less than normal, traversing through end
The size h for being pierced by bone plate 1 is smaller.Therefore, the size h that traversing through end is pierced by bone plate 1 is detected by testing agency, according to size
The actual size of h can determine whether the concrete condition (bigger than normal, less than normal or qualified) of bottom diameter d, without passing through drift and no-go gage pair
The same lock hole carries out two sides detection, effectively increases detection efficiency.
Wherein it is possible to specifically set the acceptability limit of bottom diameter d, and the acceptability limit of size h is obtained according to this.Work as detection
When the size h that mechanism detection traversing through end is pierced by bone plate 1 is located at acceptability limit, then lock hole is qualified；When testing agency's detection is worn
The size h that outlet is pierced by bone plate 1 is greater than maximum value in acceptability limit or when less than minimum value in acceptability limit, then locks
Hole is unqualified.
As shown in fig. 6, testing agency includes detection part 4 and locating piece 6.Detection part 4 has the detection that can stretch
Detection bar, the test side of detection bar are for the contact jaw for being pierced by end in contact with detection piece 7；Locating piece 6 and detection part 4
Main body is fixedly connected, and one end of locating piece 6 towards the test side of detection bar is the positioning end for contacting with bone plate 1.It is examining
When surveying the size h of mechanism detection bone plate 1, the positioning end of locating piece 6 is contacted with bone plate 1, the test side of detection bar and detection
Part 7 is pierced by end in contact and detection bar is shunk, by between the positioning end of locating piece 6 and the test side of detection bar away from
From obtaining the size h of bone plate 1.As shown in fig. 7, detecting for convenience, setting can be reset before testing.That is, using one
The positioning end of block plate 8, locating piece 6 is contacted with the same plane of plate 8 with the test side of detection bar, so that locating piece 6
The test side of positioning end and detection bar is located at being axially aligned for detection bar.In the detection process, the positioning end of locating piece 6 with connect
The contact of bone plate 1, detection bar contraction and its test side are pierced by end in contact with detection piece 7, therefore, the positioning end of locating piece 6 and inspection
The test side of measuring staff is located at the size h that the distance in the axial direction of detection bar is bone plate 1.
Due to the curved-surface structure of bone plate 1, cause the positioning end of locating piece 6 after contacting with bone plate 1, locating piece 6
Positioning end and detection piece 7 are pierced by the intersection location of bone plate 1, and there are differences in height.The difference in height can calculate the qualification in size h
Within the scope of.Such as, the theoretical value of the acceptability limit of size h is 15mm~20mm, due to the curved-surface structure of bone plate 1, so that fixed
It is 1mm that the positioning end and detection piece 7 of position part 6, which are pierced by difference in height existing for the intersection location of bone plate 1, then the qualified model of size h
The actual value enclosed is 14mm~19mm.
In order to ensure locating effect, locating piece 6 is sleeve；Sleeve is sheathed on the outside of detection bar.By above-mentioned setting, really
The positioning end of locating piece 6 and the steady contact of bone plate 1 have been protected, has also ensured the test side of detection bar and being pierced by for detection piece 7
The steady contact at end.Support rod can also be set by locating piece 6, be parallel to each other with detection bar or be arranged in certain inclination angle.
Bone plate lock hole detection device provided by the embodiment of the utility model, further includes sleeve fixture block 5, and sleeve passes through set
Collet chuck block 5 is detachably secured in the main body of detection part 4.By above-mentioned setting, in order to by sleeve and detection part 4
The separation and assembling of main body realize the replacement and maintenance of sleeve.As shown in Figures 7 and 8, in the present embodiment, lock hole
The surface normal of axis and bone plate 1 is mutually perpendicular to, and therefore, in correcting process, the axis and plate 8 of sleeve and detection bar hang down
Directly.But it is not the axis of each lock hole and the surface normal of bone plate 1 is orthogonal structure, lock hole can also be made
The surface normal of axis and bone plate 1 be arranged at an angle, therefore, the structure of the positioning end of sleeve is also required to accordingly adjust
It is whole, in order to be adapted to different lock holes.
In the present embodiment, anchor ear preferably is set by sleeve fixture block 5.By the bolt locking on anchor ear, so that anchor ear is embraced
Fixed cylinder, in order to which sleeve to be fixed in the main body of detection part 4.Can also set sleeve fixture block 5 to spring clip or its
His structure.
As shown in Fig. 6 and Fig. 8, detection piece 7 has the tapered portion matched with lock hole, and conical outer wall is the outer of tapered portion
Wall；The positioning end of locating piece 6 is contacted with the inner wall of bone plate 1；The inner wall of bone plate 1 is the bottom outlet that bone plate 1 has lock hole
Wall surface.By above-mentioned setting, so that the bottom outlet of the lock hole of bone plate 1 is effectively kept away towards locating piece 6 by above-mentioned setting
The impaired situation of lock hole is exempted from.
It is of course also possible to make the bottom outlet of the lock hole of bone plate 1 backwards to locating piece 6, that is, the positioning end of locating piece 6 with connect
The outer wall of bone plate 1 contacts.
At present using divider detection during, often there is reviewer's misoperation or firmly excessive lead to lock hole
Screw thread the case where being destroyed, erroneous detection is be easy to cause when detecting using divider；Simultaneously as the screw-thread ending in aperture, leads to bottom
Hole is not a complete circular hole (notch has been broken at screw-thread ending), and erroneous detection is also be easy to cause when detecting using divider.
Therefore, product qualified rate is reduced, and there are also defective products to be detected the risk for qualified product, detection accuracy is not high.
Therefore, in the present embodiment, conical outer wall is cone shaped outer wall.By above-mentioned setting, conical outer wall has been preferably ensured that
With the contact area of the lock hole of bone plate 1, damage of the detection piece 7 to the internal thread structure of lock hole is reduced, is effectively increased
Detection accuracy improves product qualified rate.
Further, there is the external thread structure matched with the internal thread structure of lock hole on conical outer wall.That is, detection
Part 7 imitates the structure of lock screw, is matched by detection piece 7 with lock hole, effectively prevents detection piece 7 in lock hole
The damage of helicitic texture；And, it is ensured that during the detection bar of detection part 4 is contacted with detection piece 7, detection piece 7 and lock
The locating effect for determining hole, effectively increases detection accuracy.
In the present embodiment, the end face of the positioning end of locating piece 6 is curved-surface structure；The positioning surface of curved-surface structure and bone plate 1
Curved surface coincide；The position that the positioning surface of bone plate 1 contacts with each other for the positioning end of itself and locating piece 6.By above-mentioned setting,
It ensures the locating effect that locating piece 6 is contacted with bone plate 1, the effect for improving detection accuracy can be further functioned as.
In the present embodiment, detection part 4 is dial gauge.Component 4 can also be will test and be set as other equipment, herein no longer
Tire out one by one and states and within protection scope.
In another embodiment, testing agency is slide calliper rule.That is, being directly pierced by bone plate 1 using calliper to measure traversing through end
Size h.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (11)
1. a kind of bone plate lock hole detection device characterized by comprising
Detection piece, the detection piece have the conical outer wall and energy of the bottom outlet location fit for the lock hole with the bone plate
It is enough pierced by the traversing through end of bone plate, the traversing through end is located at the small end of the conical outer wall；
Testing agency, the testing agency is for detecting the size that the traversing through end is pierced by the bone plate.
2. bone plate lock hole detection device as described in claim 1, which is characterized in that the testing agency includes:
Detection part, the detection part have the detection bar of detection of capable of stretching, the test side of the detection bar be for
The contact jaw for being pierced by end in contact of the detection piece；
Locating piece, the locating piece are fixedly connected with the main body of the detection part, and the locating piece is towards the detection bar
One end of test side is the positioning end for contacting with the bone plate.
3. bone plate lock hole detection device as claimed in claim 2, which is characterized in that the locating piece is sleeve；
The sleeve is sheathed on the outside of the detection bar.
4. bone plate lock hole detection device as claimed in claim 3, which is characterized in that further include sleeve fixture block, the set
Cylinder is detachably secured in the main body of the detection part by the sleeve fixture block.
5. bone plate lock hole detection device as claimed in claim 4, which is characterized in that the sleeve fixture block is anchor ear.
6. such as the described in any item bone plate lock hole detection devices of claim 2-5, which is characterized in that the detection piece has
The tapered portion matched with the lock hole, the conical outer wall are the outer wall of the tapered portion；
The positioning end of the locating piece is contacted with the inner wall of the bone plate；
The inner wall of the bone plate is the wall surface for the bottom outlet that the bone plate has the lock hole.
7. bone plate lock hole detection device as claimed in claim 6, which is characterized in that the conical outer wall is that cone is outer
Wall.
8. bone plate lock hole detection device as claimed in claim 7, which is characterized in that have and institute on the conical outer wall
State the external thread structure that the internal thread structure of lock hole matches.
9. bone plate lock hole detection device as claimed in claim 2, which is characterized in that the end of the positioning end of the locating piece
Face is curved-surface structure；
The curved surface of the curved-surface structure and the positioning surface of the bone plate coincides；
The position that the positioning surface of the bone plate contacts with each other for the positioning end of itself and the locating piece.
10. bone plate lock hole detection device as claimed in claim 2, which is characterized in that the detection part is dial gauge.
11. bone plate lock hole detection device as described in claim 1, which is characterized in that the testing agency is slide calliper rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973045.7U CN208936998U (en) | 2018-11-27 | 2018-11-27 | Bone plate lock hole detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821973045.7U CN208936998U (en) | 2018-11-27 | 2018-11-27 | Bone plate lock hole detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208936998U true CN208936998U (en) | 2019-06-04 |
Family
ID=66728104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821973045.7U Active CN208936998U (en) | 2018-11-27 | 2018-11-27 | Bone plate lock hole detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208936998U (en) |
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2018
- 2018-11-27 CN CN201821973045.7U patent/CN208936998U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: 430065, Tsing Ling Town Industrial Zone, Hongshan District, Hubei, Wuhan Province, No. 18 Patentee after: Wuhan Mindray Technology Co., Ltd Address before: 430070 Hubei, Wuhan Ling Ling Industrial Park, green Ling Road, No. 18, Hongshan Patentee before: WUHAN DRAGONBIO ORTHOPEDIC PRODUCTS Co.,Ltd. |