CN202920190U - Measurer for measuring femoral eccentricity in orthopedic operation - Google Patents
Measurer for measuring femoral eccentricity in orthopedic operation Download PDFInfo
- Publication number
- CN202920190U CN202920190U CN 201220647570 CN201220647570U CN202920190U CN 202920190 U CN202920190 U CN 202920190U CN 201220647570 CN201220647570 CN 201220647570 CN 201220647570 U CN201220647570 U CN 201220647570U CN 202920190 U CN202920190 U CN 202920190U
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- depth
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- expansion link
- measuring device
- femur
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Abstract
The utility model discloses a measurer for measuring the femoral eccentricity in an orthopedic operation. The measurer comprises a stand, wherein a depth measuring device which is inserted into a femur body and used for measuring the depth of the femur body is arranged at the lower part of the stand, and a diameter measuring device which is used for measuring the width of the femur head and a length measuring device which is used for measuring the femoral eccentricity are arranged at the upper part of the stand; a depth display and a length display which are electrically connected with a control circuit are also arranged on the stand; and the depth display and the length display are used for displaying corresponding measurement parameters and rapidly and accurately measuring accurate data, such as the calibre of the femur head of the femur as well as the depth and eccentricity of the femur body. The measurer disclosed by the utility model can be used for ensuring the operation quality and helping a patient to obtain an optimal treatment effect.
Description
Technical field
This utility model belongs to Orthopedic operation assist device tool technical field, is specifically related to a kind of measuring apparatus that uses for Hip surgery.
Background technology
Before full hip patient with operation is carried out art, the femoral offset data of postoperative compare research, draw complete data, formulate before perfect, practicable art and art in operation planning, operate in research and development and improvement art, make the patient reach best rehabilitation efficacy, very necessary to treatment hip illness patient.Also more coarse simple and crude to the instrument that eccentric throw in art is measured, most of measuring method is indirectly to measure according to the imaging data data, have the more factor that affects data validity, cause the inaccurate of measurement, the impact hyperphoric rear artificial joint service life.
Summary of the invention
The purpose of this utility model is: the deficiency for prior art exists provides a kind of easy to operate, the measuring device that is used for the bone surgery femoral offset that accuracy is high.
For realizing the purpose of this utility model, be achieved by the following technical solutions: a kind of measuring device for the bone surgery femoral offset, include support, the support bottom is provided with inserts in shaft of femur in order to measure the depth measurement device of the shaft of femur degree of depth, upper part of the frame is provided with to measure the diameter measuring device of femoral head width, and in order to measure the length-measuring appliance of femoral offset; Also be provided with the depth displays and the length display that electrically connect with control circuit on described support;
Described depth measurement device includes the housing with support below jack grafting, be socketed in the depth survey bar in housing, also be provided with the elevating lever A that is connected with the depth survey bar in housing, elevating lever A is connected with the motor-driven that is arranged in housing, and depth survey bar bottom is provided with inductive probe; Be provided with the severity control switch of controlling depth measuring stick lifting on support, described severity control switch, motor and inductive probe electrically connect with control circuit respectively;
Described diameter measuring device comprises the annular rotation seat that is arranged at upper part of the frame, coaxial sleeve is located at the turning set of rotation seat periphery, be connected to the dwang on turning set, expansion link D on dwang is slidably located in, and middle part and expansion link D end be by the hinged diameter measurement bar of jointed shaft, and diameter measurement bar and dwang are perpendicular, and diameter measurement bar two ends symmetry slip cap is connected to expansion link A, expansion link A is provided with scale label, and expansion link A outer end is fixedly connected with dop;
Described length-measuring appliance comprises and being positioned in the middle of rotation seat and the coaxial hinged rotor of rotation seat, be vertically connected at the support bar on rotor top, the elevating lever B that is slidably socketed with support bar, be vertically connected at the linear measure longimetry bar of elevating lever B upper end, the expansion link B that is slidably socketed with the linear measure longimetry bar, expansion link B outer end is provided with the tablet that offsets with peak place, femoral head upper end, and tablet and control circuit electrically connect.
As preferred version: the dop slip cap of described diameter measuring device is connected to expansion link C, and expansion link C is mutually vertical with the diameter measurement bar.
As preferred version: described support lower end one side is provided with the assay plate of fitting with the shaft of femur lateral wall, offer on assay plate for positioning needle pass and with fixing mensuration hole, shaft of femur lateral wall.
Compared with prior art, the beneficial effects of the utility model are: due to will be for inserting in shaft of femur in order to measure the depth measurement device of the shaft of femur degree of depth, upper part of the frame is provided with to measure the diameter measuring device of femoral head width, and become one in order to the length-measuring appliance of measuring femoral offset, and display is set on support shows corresponding measurement parameter, can record rapidly and accurately the accurate data of femoral head diameter, the shaft of femur pulp cavity degree of depth and the eccentric throw of femur, guarantee the quality of operation, make patient obtain best therapeutic effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The structural representation of Fig. 2 diameter measuring device part.
Fig. 3 is the structural representation of support part.
1, support; 2, depth survey bar; 3, housing; 4-1, elevating lever A; 4-2, elevating lever B; 5, inductive probe; 6, motor; 7, depth displays; 8, length display; 9, severity control switch; 10, rotation seat; 11, dwang; 12-1, expansion link A; 12-2, expansion link B; 12-3, expansion link C; 12-4, expansion link D; 13, turning set; 14, dop; 15, scale label; 16, diameter measurement bar; 17, support bar; 18, linear measure longimetry bar; 19, tablet; 20, jack; 22, rotor; 23, assay plate; 24, measure the hole; 25, jointed shaft; 26, femoral head; 27, shaft of femur.
The specific embodiment
The below makes a detailed explanation the specific embodiment of the present utility model with reference to the accompanying drawings.
According to illustrated in figures 1 and 2, the described a kind of measuring device for the bone surgery femoral offset of the present embodiment, include support 1, support 1 bottom is provided with inserts in shaft of femur 27 in order to measure the depth measurement device of shaft of femur 27 degree of depth, support 1 top is provided with to measure the diameter measuring device of femoral head width, and in order to measure the length-measuring appliance of femoral offset; Also be provided with Depth display 7 devices and the length display 8 that electrically connect with control circuit on described support 1.
Described depth measurement device includes the housing 3 of pegging graft with support 1 below jack 20, be socketed in the depth survey bar 2 in housing 3, also be provided with the elevating lever A4-1 that is connected with depth survey bar 2 in housing 3, elevating lever A4-1 is in transmission connection with the motor 6 that is arranged in housing 3, and depth survey bar 2 bottoms are provided with inductive probe 5; Be provided with the severity control switch 9 of controlling depth measuring stick 2 liftings on support 1, described severity control switch 9, motor 6 and inductive probe 5 electrically connect with control circuit respectively; Control circuit and power supply are arranged in support 1.
Described diameter measuring device comprises the annular rotation seat 10 that is arranged at support 1 top, coaxial sleeve is located at the turning set 13 of rotation seat 10 peripheries, be connected to the dwang 11 on turning set 13, expansion link D12-4 on dwang 11 is slidably located in, and middle part and expansion link D12-4 end are by the hinged diameter measurement bar 16 of jointed shaft 25, diameter measurement bar 16 is perpendicular with dwang 11, the symmetrical slip cap in diameter measurement bar 16 two ends is connected to expansion link A12-1, expansion link A12-1 is provided with scale label 15, and expansion link A12-1 outer end is fixedly connected with dop 14;
Described length-measuring appliance comprises and is positioned in the middle of rotation seat 10 and the coaxial hinged rotor 22 of rotation seat, be vertically connected at the support bar 17 on rotor 22 tops, the elevating lever B4-2 that is slidably socketed with support bar 16, be vertically connected at the linear measure longimetry bar 18 of elevating lever B4-2 upper end, the expansion link B12-2 that is slidably socketed with linear measure longimetry bar 18, expansion link B12-2 outer end is provided with the tablet 19 that offsets with femoral head 26 peak places, upper end, and tablet 19 electrically connects with control circuit.Be provided with the electronic range measurement module between described expansion link B12-2 and linear measure longimetry bar, in order to measure the support bar center to the distance of tablet 19 with expansion link B12-2 junction, the electronic range measurement module reaches control circuit with data measured; Tablet 19 is resistance-type or capacity-type electronic tablet, and it delivers to control circuit with data after recording the coordinate of femoral head 26 peaks, and the data that coordinate the electronic range measurement module to obtain are calculated, and obtains eccentric throw numerical value and also shows on length display 8.
Described support 1 lower end one side is provided with the assay plate 23 of fitting with shaft of femur 27 lateral walls, offer on assay plate 23 for positioning needle pass and with fixing mensuration hole 24, shaft of femur 27 lateral walls.
Measure before operation, depth measurement device on measuring device is assembled, depth survey bar 2 inserts in the pulp cavity of shaft of femur 27 by pears shape nest, axis is positioned, simultaneously by 9 controlling depth measuring stick 2 liftings of severity control switch, till making depth survey bar 2 be inserted into the bottom by inductive probe 5 cooperations, this moment, measuring device fixed.rotate dwang 11, femoral head diameter 26 to original damage is measured, because femoral head 26 is ball-type, but the first half is easy to distortion after damage, so will position centre point by diameter measuring device, at first rotating dwang 11 makes diameter measurement bar 16 in the outside of femoral head 26, draw high expansion link A12-1, allow dop 14 be stuck in the outside of femoral head 26, the scale label 15 of observing on expansion link A12-1 is determined longest distance, due to the centre position of dwang 11 at diameter measurement bar 16, so when observing measurement, also to guarantee scale label 15 correspondences of both sides, so just can accurately find central point accurately, rotary supporting rod 17 again, adjusting elevating lever B4-2 makes linear measure longimetry bar 18 correspondences directly over dwang 11, and dwang 11 is just in time at the mid point of diameter measurement bar 16, guaranteed that like this linear measure longimetry bar 18 is on the horizontal plane at place, the femoral head center of circle, draw high the expansion link B12-2 on linear measure longimetry bar 18, allow the upper surface of upper surface contact femoral head 26 of linear measure longimetry bar 18, because femur 26 is single point for the spheroid contact, can measure the axis of support bar 17 to the distance of this point by tablet 19, namely obtain the eccentric throw data and be presented on length display 8.
Because the center of circle is eccentric throw to the vertical dimension of axis, thus the length distance that the method measures equate with eccentric throw, the little accuracy of error is higher.Position at femoral cortex by vertically pass mensuration hole 24 in 2 above positioning needles of assay plate 23 assay plate 23 use in the pulp cavity outside when measuring, positioning needle has stayed obvious location vestige on femoral cortex like this, after completing measurement, positioning needle is taken off, take off simultaneously whole measuring device.After carrying out the prosthetic replacement, depth measurement device on measuring device is taken off, by the corresponding location vestige that originally stays on the joint of positioning needle, assay plate 23 is loaded onto together with measuring device fixed, measuring device just guarantees on original position like this, has also determined the direction of axis simultaneously, then has been fixed by 23 pairs of measuring devices of assay plate, in the situation that do not have the depth measurement device measuring device can not be offset, guaranteed the accuracy of measuring.After the new displacement of other measurements, the step of artificial femur is consistent with measurement femur method before art.Compare after obtaining 2 length data of preoperative and postoperative and corresponding the adjustment, as adjusting the neck of femur degree of depth, the femoral head size.
Claims (3)
1. measuring device that is used for the bone surgery femoral offset is characterized in that:
Include support, the support bottom is provided with inserts in shaft of femur in order to measure the depth measurement device of the shaft of femur degree of depth, and upper part of the frame is provided with to measure the diameter measuring device of femoral head width, and in order to measure the length-measuring appliance of femoral offset; Also be provided with the depth displays and the length display that electrically connect with control circuit on described support;
Described depth measurement device includes the housing with support below jack grafting, be socketed in the depth survey bar in housing, also be provided with the elevating lever A that is connected with the depth survey bar in housing, elevating lever A is connected with the motor-driven that is arranged in housing, and depth survey bar bottom is provided with inductive probe; Be provided with the severity control switch of controlling depth measuring stick lifting on support, described severity control switch, motor and inductive probe electrically connect with control circuit respectively;
Described diameter measuring device comprises the annular rotation seat that is arranged at upper part of the frame, coaxial sleeve is located at the turning set of rotation seat periphery, be connected to the dwang on turning set, expansion link D on dwang is slidably located in, and middle part and expansion link D end be by the hinged diameter measurement bar of jointed shaft, and diameter measurement bar and dwang are perpendicular, and diameter measurement bar two ends symmetry slip cap is connected to expansion link A, expansion link A is provided with scale label, and expansion link A outer end is fixedly connected with dop;
Described length-measuring appliance comprises and being positioned in the middle of rotation seat and the coaxial hinged rotor of rotation seat, be vertically connected at the support bar on rotor top, the elevating lever B that is slidably socketed with support bar, be vertically connected at the linear measure longimetry bar of elevating lever B upper end, the expansion link B that is slidably socketed with the linear measure longimetry bar, expansion link B outer end is provided with the tablet that offsets with peak place, femoral head upper end, and tablet and control circuit electrically connect.
2. a kind of measuring device for the bone surgery femoral offset according to claim 1, it is characterized in that: the dop slip cap of described diameter measuring device is connected to expansion link C, and expansion link C is mutually vertical with the diameter measurement bar.
3. a kind of measuring device for the bone surgery femoral offset according to claim 1, it is characterized in that: described support lower end one side is provided with the assay plate of fitting with the shaft of femur lateral wall, offer on assay plate for positioning needle pass and with fixing mensuration hole, shaft of femur lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647570 CN202920190U (en) | 2012-11-28 | 2012-11-28 | Measurer for measuring femoral eccentricity in orthopedic operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647570 CN202920190U (en) | 2012-11-28 | 2012-11-28 | Measurer for measuring femoral eccentricity in orthopedic operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202920190U true CN202920190U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647570 Withdrawn - After Issue CN202920190U (en) | 2012-11-28 | 2012-11-28 | Measurer for measuring femoral eccentricity in orthopedic operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202920190U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102988056A (en) * | 2012-11-28 | 2013-03-27 | 丽水市人民医院 | Measurer for measuring femoral offset in orthopedic operation |
| CN113017942A (en) * | 2021-03-17 | 2021-06-25 | 山东大学齐鲁医院(青岛) | Device for measuring length change of lower limb |
| CN113017943A (en) * | 2021-03-17 | 2021-06-25 | 山东大学齐鲁医院(青岛) | Measuring device for acetabulum position change amount |
-
2012
- 2012-11-28 CN CN 201220647570 patent/CN202920190U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102988056A (en) * | 2012-11-28 | 2013-03-27 | 丽水市人民医院 | Measurer for measuring femoral offset in orthopedic operation |
| CN113017942A (en) * | 2021-03-17 | 2021-06-25 | 山东大学齐鲁医院(青岛) | Device for measuring length change of lower limb |
| CN113017943A (en) * | 2021-03-17 | 2021-06-25 | 山东大学齐鲁医院(青岛) | Measuring device for acetabulum position change amount |
| CN113017943B (en) * | 2021-03-17 | 2024-01-09 | 山东大学齐鲁医院(青岛) | Acetabular position change measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20140716 |
|
| RGAV | Abandon patent right to avoid regrant |