CN102151161B - Cutting navigator of femoral myelocavity file - Google Patents
Cutting navigator of femoral myelocavity file Download PDFInfo
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- CN102151161B CN102151161B CN 201110054217 CN201110054217A CN102151161B CN 102151161 B CN102151161 B CN 102151161B CN 201110054217 CN201110054217 CN 201110054217 CN 201110054217 A CN201110054217 A CN 201110054217A CN 102151161 B CN102151161 B CN 102151161B
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- cutting
- navigator
- femoral
- probe
- cavity
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Abstract
The invention provides a cutting navigator of a femoral cavity medullary cavity file. The navigator comprises an image acquisition unit, a central control unit (4), a display unit (5) and a button keyboard (6). The navigator is characterized by further comprising a probe stick, wherein the central control unit (4) is respectively connected with the image acquisition unit, the display unit (5) and the button keyboard (6); and the image acquisition unit comprises a fixing bracket (1) and at least two of cameras, and the fixing bracket (1) comprises a semicircular bracket for putting the cameras. The navigator can be used for displaying a cutting reference guide way of the medullary cavity file to help the operating doctor to ensure the position and direction of the guide way for the medullary cavity file to cut the cancellous bone of the femoral cavity, so that the hip joint femoral handle prosthesis can be successfully implanted for once, and the matching degree between the custom-made femoral handle prosthesis and the medullary cavity of the patient can be guaranteed.
Description
Technical field
The present invention relates to a kind of operation navigation device, in particular in the orthopaedics hip replacement surgery to the cutting navigator of patient's femoral cavity.
Background technology
In human hip replacement operation process, need to adopt Myelocavity file excision near end of thighbone part spongy bone so that implant femoral hip stem prosthesis.Have at present many hip replacement surgeries to adopt the Custom Prosthesis type femoral bone end prosthesis, require as much as possible closely connected coupling of femoral hip stem prosthesis and patient's femoral cavity, it is suitable that this just requires the cutting of patient's femoral cavity spongy bone.At present, in the hip replacement surgery process, operative doctor is determined the cutting guide passage of Myelocavity file fully by rule of thumb.Yet even if experienced operative doctor, the Myelocavity file that sometimes also can occur selecting cutting guide passage is incorrect, and appearance can't be implanted the situation of femoral hip stem prosthesis, sometimes even cause patient's femur bone splits phenomenon.By again cutting femoral cavity ability implanting prosthetic, this just occurs too much machining away the situation of patient's femoral cavity spongy bone inevitably, at this moment matching degree greatly reduces between near end of thighbone pulp cavity and the femoral hip stem prosthesis, affect human hip place power to the conduction of femur, increase simultaneously in early days loosening risk of type femoral bone end prosthesis, be unfavorable for the rehabilitation behind the operation in patients.In addition, in order to know femoral hip stem prosthesis stuck situation in patient's femoral cavity, need to take X-ray to the patient, cause on the one hand the further radiation to the patient, increase on the other hand operating time.
Summary of the invention
The object of the present invention is to provide a kind of operation navigation device of definite Myelocavity file cutting patient femoral cavity operation guide passage, the assisting operation doctor determines Myelocavity file cutting guide passage, make the disposable implantation success of femoral hip stem prosthesis, guarantee the matching degree of Custom Prosthesis type femoral bone end prosthesis and patient's pulp cavity.
The technical scheme of cutting navigator of femoral cavity medullary cavity file of the present invention is: a kind of cutting navigator of femoral cavity medullary cavity file, comprise image acquisition units, central control unit, display unit, button keyboard and probe, this central control unit are connected with image acquisition units, display unit and button keyboard respectively; Image acquisition units comprises fixed mount and plural photographic head, and this fixed mount comprises the semi-circular support of placing photographic head, and the angle between the photographic head can be regulated between 0～180 degree.
Beneficial effect of the present invention is: the data analysis that the CPU of cutting navigator of femoral cavity medullary cavity file gathers image acquisition units, simulation and the Myelocavity file that demonstrates in real unit cut with reference to guide passage, can guarantee by this method implantation success of type femoral bone end prosthesis, guarantee the matching degree of preset artificial hip-joint thigh-bone handle prosthese and patient's femoral cavity.
Description of drawings
Fig. 1 is the cutting navigator of femoral cavity medullary cavity file structural representation
Fig. 2 is the pulp chamber bur structural representation
Wherein, 1-fixed mount, 2-the first photographic head, 3-second camera, 4-central control unit, 5-display, 6-button keyboard, 8-on and off switch, 9-pulp chamber bur shell, 10-drilling rod.
The specific embodiment
Structure of the present invention as shown in Figure 1, this device mainly comprises: fixed mount 1, the first photographic head 2, second camera 3, central control unit 4, display unit 5, button keyboard 6 and an adnexa probe form.Fixed mount 1 is fixed on the operating-table, and fixedly on the fixed mount 1, angle can be adjusted between 0～180 degree between the two for the first photographic head 2 and second camera 3, in order to gathering the operative region image, and with image transmission to central control unit 4; Central control unit 4 receives operational order and the first photographic head 2 and second camera 3 transmission and comes picture signal, command request according to button keyboard 6 inputs is processed image information, determine the Myelocavity file cutting with reference to guide passage, and the image of Myelocavity file cutting with reference to guide passage and current operative region shown by display unit 5; Display unit 5 receives and shows the information that central control unit 4 transmits, and demonstrates the Myelocavity file cutting with reference to the image of guide passage and operative region, for the operative doctor reference; Button keyboard 6 is used for sending operational order; The adnexa probe is a pole, and after operation on hip joint was clipped patient's neck of femur and exposed femoral bone cavitas medullaris, patient's femoral cavity was inserted in examination, and the Myelocavity file cutting will build according to probe with reference to guide passage.
Work process of the present invention is: before hip replacement surgery, start the cutting navigator of femoral cavity medullary cavity file system, at this moment display unit 5 only shows the operative region image information, when the operation on hip joint osteotomy is finished, after exposing patient's femoral cavity, visible place nails on three index points at patient's femoral greater trochanter, the adnexa probe is inserted in patient's femoral cavity, by the button on the button click keyboard 6, what display unit 5 showed arranges the Myelocavity file cutting with reference to the guide passage programs menu, central control unit 4 receives the Myelocavity file that arranges that transmits on the button keyboard 6 and cuts with reference to after the guide passage instruction, sends instruction to display unit 5, and display unit 5 demonstrates operation indicating, according to operation indicating input probe diameter, with reference to guide passage diameter (Myelocavity file injection-drawing out device diameter is with reference to the guide passage diameter), after finishing, enter next step; Selection is with reference to the guide passage display mode, and display mode has two kinds: a kind of loop wire shape, and a kind of transparent cylindrical after finishing, enters next step; Determine three index point positions, after finishing, enter next step; Confirm probe, the probe picture signal that central control unit 4 will transmit according to photographic head and the probe diameter of setting, simulate a cylindrical and probe image identical with probe diameter and carry out image registration, determine the centrage of probe, simulate with reference to the cutting guide passage according to the probe centrage again, with reference to cutting guide passage centrage and probe central lines, and connect with reference to cutting guide passage and index point, like this when patient's femur position changes, to change with the femur change in location with reference to the cutting guide passage, click with reference to the setting of cutting guide passage and finish knob, take out probe, will demonstrate on the operative region image that display demonstrates with reference to the cutting guide passage.Operative doctor will be according to determine Myelocavity file cutting guide passage with reference to the cutting guide passage, make the actual guide passage of Myelocavity file cutting patient's femoral cavity spongy bone consistent with the reference guide passage as far as possible, so just can guarantee implantation success of type femoral bone end prosthesis, and guarantee the matching degree of preset artificial hip-joint thigh-bone handle prosthese and patient's femoral cavity.
As further improvement of this embodiment, as shown in Figure 2, the drilling rod 10 of pulp chamber bur replaces the adnexa probe to make up the Myelocavity file cutting with reference to guide passage, and pulp chamber bur comprises on and off switch 8 and pulp chamber bur shell 9.When the operation on hip joint osteotomy is finished, expose patient's femoral cavity, after the visible place of patient's femoral greater trochanter nails on index point, with pulp chamber bur patient's femoral cavity being expanded marrow processes, after expanding marrow, begin to arrange the Myelocavity file cutting with reference to guide passage, because the drilling rod 10 of pulp chamber bur is the right cylinder bar, cutting is determined according to the pulp chamber bur drilling rod with reference to guide passage, and cutting is with reference to guide passage centrage and pulp chamber bur drilling rod central lines.
Claims (4)
1. a cutting navigator of femoral cavity medullary cavity file comprises image acquisition units, central control unit (4), display unit (5), button keyboard (6), three index points; It is characterized in that: also comprise probe, described central control unit (4) is connected 6 with image acquisition units, display unit (5) with button keyboard respectively) be connected; Described image acquisition units comprises fixed mount (1) and plural photographic head, and described fixed mount (1) comprises the semi-circular support of placing photographic head; The probe picture signal that described central control unit (4) transmits according to described photographic head and the probe diameter of setting by button keyboard (6), simulate a cylindrical and described probe image identical with described probe diameter and carry out image registration, determine the centrage of described probe, centrage according to described probe simulates with reference to the cutting guide passage again, described with reference to the centrage of cutting guide passage and the central lines of described probe, described reference cutting guide passage is associated with three index point positions.
2. a kind of cutting navigator of femoral cavity medullary cavity file according to claim 1 is characterized in that: the angle between the photographic head is between 0～180 degree.
3. a kind of cutting navigator of femoral cavity medullary cavity file according to claim 1 and 2, it is characterized in that: the angle between the photographic head can be regulated.
4. a kind of cutting navigator of femoral cavity medullary cavity file according to claim 1 and 2, it is characterized in that: described probe is the drilling rod (10) of pulp chamber bur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054217 CN102151161B (en) | 2011-03-08 | 2011-03-08 | Cutting navigator of femoral myelocavity file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054217 CN102151161B (en) | 2011-03-08 | 2011-03-08 | Cutting navigator of femoral myelocavity file |
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| Publication Number | Publication Date |
|---|---|
| CN102151161A CN102151161A (en) | 2011-08-17 |
| CN102151161B true CN102151161B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110054217 Expired - Fee Related CN102151161B (en) | 2011-03-08 | 2011-03-08 | Cutting navigator of femoral myelocavity file |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300905A (en) * | 2013-06-21 | 2013-09-18 | 江苏大学 | Distal and proximal positioning combined probe for selecting cutting guide of marrow cavity file |
| CN103654911B (en) * | 2013-12-11 | 2015-12-30 | 中国科学院深圳先进技术研究院 | A kind of control method of the robot for grinding of performing the operation and device |
| CN111227995B (en) * | 2020-03-19 | 2022-02-15 | 闫新峰 | Femoral head prosthesis component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672957A (en) * | 1983-10-04 | 1987-06-16 | South African Inventions Development Corporation | Surgical device |
| CN101224104A (en) * | 2007-01-15 | 2008-07-23 | 杭州市萧山区中医院 | Orthopaedics operation navigation system |
-
2011
- 2011-03-08 CN CN 201110054217 patent/CN102151161B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672957A (en) * | 1983-10-04 | 1987-06-16 | South African Inventions Development Corporation | Surgical device |
| CN101224104A (en) * | 2007-01-15 | 2008-07-23 | 杭州市萧山区中医院 | Orthopaedics operation navigation system |
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| Publication number | Publication date |
|---|---|
| CN102151161A (en) | 2011-08-17 |
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