CN207236855U - Clearance checking scale - Google Patents
Clearance checking scale Download PDFInfo
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- CN207236855U CN207236855U CN201720140599.8U CN201720140599U CN207236855U CN 207236855 U CN207236855 U CN 207236855U CN 201720140599 U CN201720140599 U CN 201720140599U CN 207236855 U CN207236855 U CN 207236855U
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- handle
- distraction plate
- rack
- distraction
- clearance checking
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Abstract
The utility model proposes a kind of clearance checking scale, it includes first handle, second handle, the first distraction plate, the second distraction plate, gear and rack；Second handle is articulated in the first handle；First distraction plate is connected to the first handle；Second distraction plate is slidably connected to the first handle, can be slided up and down relative to first distraction plate, and a pin and measuring device are additionally provided with second distraction plate, and the measuring device is used to measure the gap between the first distraction plate and the second distraction plate；Gear is rotatably dispose in first distraction plate vertically, and the gear is equipped with pivot structure, and there is spiral groove in the periphery of the pivot structure, and the pin is engaged with the spiral groove；Rack is slideably positioned in first distraction plate and is meshed with the gear, and the second handle is connected with rack to be moved with drive rack.
Description
Technical field
It the utility model is related to and used in a kind of total knee replacement apparatus, more particularly to a kind of operation of total knee replacement
Clearance checking scale.
Background technology
At present, in the operation of total knee replacement, stretch or the strutting of flexing gap, soft tissue balance evaluation and gap
Size measures most by different apparatus realizations, seldom can be by three kinds of function sets a to apparatus.Such as use board-like support
Drive device and carry out space distraction and soft tissue balance evaluation, clearance measurement is carried out using a series of clearance measurement block of different-thickness.
Therefore surgical procedure is more complicated, and operating theater instruments quantity is more.
Above- mentioned information is only used for strengthening the understanding to the background of the utility model disclosed in the background section, because
This it can include not forming the information to the prior art known to persons of ordinary skill in the art.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided one kind can realize at the same time stretch or
The gap measuring apparatus of the strutting of flexing gap, soft tissue balance evaluation and gap size measurement.
The additional aspect and advantage of the utility model will be set forth in part in the description, and partly will be from retouching
It is apparent from stating, or can be by the practice of the utility model and acquistion.
One side according to the present utility model, a kind of clearance checking scale, including first handle, second handle, the first support
Open plate, the second distraction plate, gear and rack；Second handle is articulated in the first handle；First distraction plate is connected to described
One handle；Second distraction plate is slidably connected to the first handle, can be slided up and down relative to first distraction plate, and described
A pin and measuring device are additionally provided with two distraction plates, the measuring device is used to measure the first distraction plate and the second distraction plate
Between gap；Gear is rotatably dispose in first distraction plate vertically, and the gear is equipped with pivot structure, the shaft knot
There is spiral groove in the periphery of structure, and the pin is engaged with the spiral groove；Rack is slideably positioned in first distraction plate simultaneously
It is meshed with the gear, the second handle is connected with rack to be moved with drive rack.
An embodiment according to the present utility model, further includes stop device, is arranged at the tail end of rack, prevents the tooth
Bar slides rearwardly out.
An embodiment according to the present utility model, the second distraction plate include the sliding part close to first handle, Yi Jishu
It is connected to the rotation section of the sliding part.
An embodiment according to the present utility model, the first handle includes first handle handle part and first handle prolongs
Extending portion, formed with cavity in the first handle extension, passes through for the rack, second distraction plate with it is described first-hand
Handle extension is slidably connected.
An embodiment according to the present utility model, the first handle, which is equipped with, promotes piece, the second handle and institute
Rack is stated to connect by the promotion piece.
An embodiment according to the present utility model, is additionally provided with resetting spring, the resetting spring on the first handle
Between the first handle and the promotion piece, the second handle is resetted by the resetting spring.
An embodiment according to the present utility model, the stop device includes a unlocking board and a retaining spring, described
Retaining spring and the unlocking board are socketed in the afterbody of the rack successively.
An embodiment according to the present utility model, the measuring device are the sign on second distraction plate
Cylinder, the sign cylinder are equipped with graduation mark, there is the marking part coordinated with the graduation mark on the pivot structure.
An embodiment according to the present utility model, described indicate offer window on cylinder, and the graduation mark is arranged on window
Mouth side.
An embodiment according to the present utility model, first distraction plate and the second distraction plate are equipped with consistency from top to bottom
The through hole for insertion force line bar.
As shown from the above technical solution, it is the advantages of the utility model with good effect：
The gap measuring apparatus of the utility model, in same step i.e. realize stretch or flexing gap strut and
Gap size measures.Further, since the meshing relation between gear and the meshing relation and screw-rod structure and pin of rack, when
When two handles rotate, the distance of second distraction plate movement is very small, can more be accurately determined the position of the second distraction plate,
Only need the strength of very little to can reach the purpose for strutting gap, improve convenience and comfort in surgical.This
The gap width of gap measuring appliance can be continuously adjustable between the minimum and maximum, compared with the clearance measurement block of fixed thickness, behaviour
Work is more flexible, and reduces the quantity of operating theater instruments.In alternative embodiments, the second distraction plate is included close to first-hand
Whether the sliding part of handle and the rotation section for being articulated in the sliding part, can be balanced by the state evaluation soft tissue of rotation section,
It can realize that space distraction, clearance measurement and soft tissue evaluate three functions, convenient operation at the same time.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, the above and other feature and advantage of the utility model will
Become readily apparent from.
Fig. 1 is the structure diagram of the clearance checking scale of one embodiment of the utility model；
Fig. 2 is the diagrammatic cross-section figure of Fig. 1；
Fig. 3 is the schematic top plan view of Fig. 1；
Schematic diagram when Fig. 4 is measuring device reading；
Fig. 5 to Fig. 7 is that the clearance checking scale of the utility model is used for schematic diagram when soft tissue is evaluated；
Fig. 8 is the partial enlarged view for showing the second distraction plate and the first distraction plate shown in Fig. 2；
Fig. 9 is the exploded perspective view of the clearance checking scale shown in Fig. 1.
In figure：1st, first handle；11st, resetting spring；12nd, first handle extension；13rd, first handle handle part；2nd,
Two handles；3rd, the first distraction plate；4th, the second distraction plate；41st, sliding part；42nd, rotation section；43rd, pin；44th, axis pin；5th, gear；
51st, pivot structure；52nd, spiral groove；6th, rack；7th, measuring device；71st, cylinder is indicated；72nd, marking part；73rd, window；8th, stop
Device；81st, unlocking board；82nd, retaining spring；91st, through hole；92nd, through hole；10th, piece is promoted.
Embodiment
Example embodiment is described more fully with referring now to attached drawing.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, these embodiments are provided so that this practicality is new
The design of example embodiment fully and completely, and will be comprehensively communicated to those skilled in the art by type.It is identical in figure
Reference numeral represents same or similar structure, thus will omit their detailed description.
Referring to Fig. 1 to Fig. 9, the utility model embodiment discloses a kind of clearance checking scale, which is used for
Total knee replacement is performed the operation.The clearance checking scale include first handle 1, second handle 2, the first distraction plate 3, the second distraction plate 4,
Gear 5, rack 6, measuring device 7 and stop device 8.
According to Fig. 1, Fig. 2 and Fig. 9, the first handle 1 and second handle 2 form en scissors-like construction, that is, this second
Handle 2 is articulated on the first handle 1, and second handle 2 and first handle 1 can relatively rotate.First distraction plate 3 and
Two distraction plates 4 are used cooperatively, to strut the gap between shin bone and femur.First distraction plate, 3 and second distraction plate 4 is substantially
Tablet, wherein, the first distraction plate 3 is connected to first handle 1, which can directly be connected with first handle 1
Connect, first handle can also be indirectly attached to by connecting other parts such as extension, in addition, first distraction plate 3 with
First handle 1 can be integrated part, both can be integrally cast, or be connected through a screw thread again after manufacturing respectively, weld, rivet
It is attached etc. mode.
Second distraction plate 4 is slidably connected to the first distraction plate 3 and can be slided up and down relative to the first distraction plate 3.By Fig. 9
Understand, in the present embodiment, first handle 1 has first handle extension 12 and first handle handle part 13, first handle
Extension 12 is formed at the top of first handle handle part 13, interior formed with cavity, is passed through for the rack 6, first handle prolongs
12 front end of extending portion is connected with the second distraction plate 4, can set a vertical raised line, fluted on the second distraction plate 4, by with it is first-hand
Raised line on handle extension 12 is engaged, and is slided up and down so as to fulfill the extension relative to first handle 1.Second distraction plate 4
It can also include a sliding part 41 and a rotation section 42, be sliding part 41 close to first handle 3, which can be relative to
First handle extension 12 slides up and down, and can be slided up and down relative to the first distraction plate 3, rotation section 42 is then articulated in slip
In portion 41 and positioned at the top of the first distraction plate 3.It should be pointed out that due to consolidating between the first distraction plate 3 and first handle 1
Surely the relation connected, therefore, even if when sliding part 41 is slidably connected to the first distraction plate 3, is still also considered as the company of slip
It is connected on first handle 1.
Relative motion between second distraction plate 4 and the first distraction plate 3 is by gear 5, rack 6 and second handle 2
Collective effect realize.The gear 5 is rotatably arranged on the first distraction plate 3 vertically, and gear 5 is equipped with one and the gear
The pivot structure 51 of connection, the upper end periphery of the pivot structure 51 are equipped with spiral groove 52.One is additionally provided with the second distraction plate 4
Pin 43, the pin 43 are engaged in the spiral groove 52 of pivot structure 51.When gear 5 rotates, pivot structure 51 is driven to rotate,
The spiral groove 52 of pivot structure 51 drives pin to move up, and is further driven to strutting for the second distraction plate, therefore pass through pin
The interaction of nail 43 and screw-rod structure 52 so that the gear 5 can drive the second distraction plate 4 to slide up and down.Rack 6 is slided and set
Put on the first distraction plate 3, be divided into rack head, middle part and afterbody, the rack head is with teeth and is meshed with gear 5.The tooth
Bar 6 is also connected by a promotion piece 10 with second handle 2.Piece is promoted to be arranged in the cavity of first handle extension 12, with
Rack is connected.Consequently, it is possible to which the second handle 2 when being rotated relative to first handle 1, promotes piece 10, piece 10 is promoted
It is connected on rack 6, can travels forward with carry-over bar 6, band moving gear 5 rotates the rack 6 again., being capable of band when gear 5 rotates
Dynamic pin 43 rotates, so as to drive the second distraction plate 4 to be moved relative to the first distraction plate.
Measuring device 7 is used to measure the gap between the first distraction plate 3 and the second distraction plate 4.Due to 3 He of the first distraction plate
The thickness of second distraction plate 4 be it is certain, thus the gap between 3 and second distraction plate 4 of the first distraction plate can directly or
Switch through the gap being changed between two bones.The specific constructive form of the measuring device 7 is not intended to limit, as long as between can reaching measurement
The purpose of gap.The measuring device 7 can be formed directly on the second distraction plate 4, can also be used as single component, assembling
On the second distraction plate 4.As shown in figure 4, in the present embodiment, measuring device 7 includes sign cylinder 71.Indicating cylinder 71 is substantially in
Tubular, it is located on upper first distraction plate, has window on sign cylinder 71, window both sides or side are provided with graduation mark, the mark
Show that cylinder 71 and upper first distraction plate can be integrated part, but be not limited thereto.It is equipped with pivot structure 51 with indicating on cylinder 71
Graduation mark coordinate marking part 72, in the present embodiment, which is 51 periphery of pivot structure of the second distraction plate
Ring.When the second distraction plate 4 moves up and down, which is engaged with the graduation mark on sign cylinder 71, can be used for
Read the distance between the first distraction plate 3 and the second distraction plate 4.
As shown in Figure 1, a resetting spring 11 is also provided with first handle 1, which is socketed in rack
Middle part, in the cavity of the first handle extension 12, and between 12 front inner wall of extension and the promotion piece 10,
By promoting piece 10 to be connected with second handle 2, so as to drive second handle 2 to reset.The resetting spring 11 can be cylinder
Helical spring, but be not limited thereto, or deformed spring is selected according to the design feature of first handle 1.
The stop device 8 is used to prevent rack 6 from sliding backward, and prevents that rack slides rearwardly out effective model in use
Enclose.Rack 6 and 5 position of gear can thus be locked so that 4 relative position of the first distraction plate 3 and the second distraction plate
It is constant.After first distraction plate 3 and the locking of the second distraction plate 4, the hand of doctor can loosen, and be not required to continuing firmly can
Keep the relative position of the first distraction plate 3 and the second distraction plate 4.In the present embodiment, which includes a unlocking board
81 and retaining spring 82.One end of the retaining spring 82 is connected with the rear of first handle extension, the other end and unlocking board
81 are connected, and are socketed on rack afterbody, and the afterbody of rack does not have tooth, which is also connected on rack afterbody, and
And there is a protruding block backward on the upper edge of first handle extension, there is a groove on unlocking board 81, and it is convex to be movably connected to this
On first handle extension in bittiness.In normal state, the lower end under the promotion of retaining spring 82 of unlocking board 81 tilts, with
After rack 6 engages, which can only be preceding and then can not fall back, and after hand being unlocked by pressing plate 81, which overcomes only
Move spring 82 elastic force and leave the engaging of rack 6, this hour rack 6 can retreat.
From Fig. 2 and Fig. 8, consistency from top to bottom is additionally provided with the first distraction plate 3 and the second distraction plate 4 is used for insertion force
The through hole of line bar, wherein being equipped with through hole 91 on the second distraction plate 4, is equipped with through hole 92 on the first distraction plate 3.This two
The axis of a through hole is to overlap.
Referring to Fig. 5 to Fig. 7, due to being the relation being mutually pivotally connected between the sliding part 41 of the second distraction plate 4 and rotation section 42,
Rotation section 42 is pivotally attached to the axis line position of rotation section by a pin, thus, when the second distraction plate 4 and the first distraction plate 3 are inserted
When entering to spatium interosseum, it can be used for the evaluation of soft tissue balance.Wherein, as shown in figure 5, when soft tissue balance situation is preferable,
42 and first distraction plate of rotation section, 3 substantial equilibrium, as shown in FIG. 6 and 7, when soft tissue balance situation is poor, the rotation
Portion 42 can tilt in lower section or lower right to the left relative to the first distraction plate 3.Doctor can according to the inclination conditions of rotation section 42,
Judge the soft tissue balance situation at spatium interosseum.
The use process of the clearance checking scale of the utility model embodiment is as follows.
After proximal tibia osteotomy and distal femur osteotomy is completed, the proximal tibia and distal femur be provided with it is certain between
Gap, when for stretching gap, which is located at distal femur osteotomy surface and proximal tibia is cut
Between bone face, when for flexing gap, which, which is located at femur four-in-one osteotomy plate bottom, puts down
Between face and proximal tibia osteotomy surface.
Doctor only needs a hand to grip first handle 1 and second handle 2, you can operates the clearance measurement of the utility model
Device.The first distraction plate 3 and the second distraction plate 4 are inserted into the gap between femur and shin bone first, then, hold with a firm grip this first
Handle 1 and second handle 2, in the process, second handle 2 travels forward with carry-over bar 6, which rotates.
The screw-rod structure 52 of 5 upper end of gear engages with the pin 43 on the second distraction plate 4 and drives the second distraction plate 4 to be strutted away from first
Plate 3.In the process, measuring device can measure the distance between 4 and first distraction plate 3 of the second distraction plate size, and by
This achievees the purpose that to measure gap size between femur and shin bone.When the second distraction plate 4 moves to finger relative to the first distraction plate 3
After fixed distance, because being provided with chocking construction, rack moves the second distraction plate, thus the second distraction plate 4 and after will not occurring
One distraction plate 3 is fixed on a specific range, and at this time, the gap between femur and shin bone is softened and is fixed to specific
Value, doctor can let go, free hand to continue to do other work.Doctor is opposite by the rotation section 42 for observing the second distraction plate 4
In the inclined degree of the first distraction plate 3, soft tissue balance evaluation can also be carried out.
In conclusion the clearance checking scale of the utility model can simplify operating procedure, three are realized in same step
Kind of function, that is, realize and stretch or the strutting of flexing gap, soft tissue evaluation and gap size measurement.Further, since gear 5 and tooth
Meshing relation between the meshing relation and pivot structure 52 and pin 43 of bar 6, when second handle 2 rotates, second support
It is very small to open the distance of the movement of plate 4, equivalent to can be finely adjusted to the position of the second distraction plate 4, it is thus possible to more accurate
Ground determines the position of the second distraction plate 4, and doctor is also more laborsaving when in use, it is only necessary to which the strength of very little can reach and strut
The purpose in gap, improves convenience and comfort in surgical.The clearance checking scale of the utility model is closed by selecting
The spacing of suitable pivot structure groove, can be in the case where second handle 2 rotates equal angular, within the specific limits to second
4 mobile range of distraction plate is finely adjusted, and further matches the individual service condition of doctor, improves the comfort of doctor.This
The gap width of gap measuring appliance can be continuously adjustable between the minimum and maximum, compared with the clearance measurement block of fixed thickness, behaviour
Work is more flexible, and reduces the quantity of operating theater instruments.
The illustrative embodiments of the utility model are particularly shown and described above.It should be understood that the utility model
Disclosed embodiment is not limited to, on the contrary, the utility model is intended to cover included in spirit and scope of the appended claims
Interior various modifications and equivalent arrangements.
Claims (10)
- A kind of 1. clearance checking scale, it is characterised in that including：First handle；Second handle, is articulated in the first handle；First distraction plate, is connected to the first handle；Second distraction plate, is slidably connected to the first handle, can be slided up and down relative to first distraction plate, described second Be additionally provided with a pin and measuring device on distraction plate, the measuring device be used to measuring the first distraction plate and the second distraction plate it Between gap；Gear, is rotatably dispose in first distraction plate vertically, and the gear is equipped with pivot structure, the pivot structure it is outer There is spiral groove week, the pin is engaged with the spiral groove；Rack, is slideably positioned in first distraction plate and is meshed with the gear, the second handle is connected with rack Moved with drive rack.
- 2. clearance checking scale according to claim 1, it is characterised in that：Stop device is further included, is arranged at the tail of rack End, prevents the rack from sliding rearwardly out.
- 3. clearance checking scale according to claim 1, it is characterised in that：Second distraction plate includes the cunning close to first handle Dynamic portion, and it is articulated in the rotation section of the sliding part.
- 4. clearance checking scale according to claim 1, the first handle includes first handle handle part and first handle Extension, the first handle extension is interior formed with cavity, is passed through for the rack, second distraction plate and described first Handle extensions portions are slidably connected.
- 5. clearance checking scale according to claim 4, it is characterised in that the first handle, which is equipped with, promotes piece, described Second handle is connected with the rack by the promotion piece.
- 6. clearance checking scale according to claim 5, it is characterised in that：Resetting spring is additionally provided with the first handle, For the resetting spring between the first handle extension and the promotion piece, the second handle passes through the resetting spring Reset.
- 7. clearance checking scale according to claim 2, it is characterised in that the stop device stops including a unlocking board and one Move spring, the retaining spring and the unlocking board are socketed in the afterbody of the rack successively.
- 8. clearance checking scale according to claim 1, it is characterised in that the measuring device is to be strutted positioned at described second Sign cylinder on plate, the sign cylinder are equipped with graduation mark, there is the marking part coordinated with the graduation mark on the pivot structure.
- 9. clearance checking scale according to claim 8, it is characterised in that offer window, the quarter on the sign cylinder Degree line is arranged on window side.
- 10. clearance checking scale according to claim 1, it is characterised in that first distraction plate and the second distraction plate It is equipped with the through hole for insertion force line bar of consistency from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140599.8U CN207236855U (en) | 2017-02-16 | 2017-02-16 | Clearance checking scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720140599.8U CN207236855U (en) | 2017-02-16 | 2017-02-16 | Clearance checking scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207236855U true CN207236855U (en) | 2018-04-17 |
Family
ID=61876160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720140599.8U Active CN207236855U (en) | 2017-02-16 | 2017-02-16 | Clearance checking scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207236855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433822A (en) * | 2017-02-16 | 2018-08-24 | 北京纳通医学科技研究院有限公司 | Clearance checking scale |
| CN113440319A (en) * | 2021-07-29 | 2021-09-28 | 佛山健翔医院有限公司 | Expandable interbody fusion cage test mold |
-
2017
- 2017-02-16 CN CN201720140599.8U patent/CN207236855U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433822A (en) * | 2017-02-16 | 2018-08-24 | 北京纳通医学科技研究院有限公司 | Clearance checking scale |
| CN108433822B (en) * | 2017-02-16 | 2024-05-07 | 北京纳通医疗科技控股有限公司 | Gap measurer |
| CN113440319A (en) * | 2021-07-29 | 2021-09-28 | 佛山健翔医院有限公司 | Expandable interbody fusion cage test mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100095 3, 2 floor, 2 building, 103 Beiqing Road, Haidian District, Beijing. Patentee after: Beijing natong Medical Technology Holding Co.,Ltd. Patentee after: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Address before: 100095 3, 2 floor, 2 building, 103 Beiqing Road, Haidian District, Beijing. Patentee before: BEIJING NATON INSTITUTE OF MEDICAL TECHNOLOGY Co.,Ltd. Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210323 Address after: G356, 3rd floor, building 1, yard 9, CHENGWAN street, Haidian District, Beijing 100094 Patentee after: Beijing natong Medical Technology Holding Co.,Ltd. Address before: 100095 3, 2 floor, 2 building, 103 Beiqing Road, Haidian District, Beijing. Patentee before: Beijing natong Medical Technology Holding Co.,Ltd. Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |