CN111700673A - Utensil is examined to thighbone intramedullary nail near-end distal end hole site - Google Patents
Utensil is examined to thighbone intramedullary nail near-end distal end hole site Download PDFInfo
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- CN111700673A CN111700673A CN202010620576.3A CN202010620576A CN111700673A CN 111700673 A CN111700673 A CN 111700673A CN 202010620576 A CN202010620576 A CN 202010620576A CN 111700673 A CN111700673 A CN 111700673A
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
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Abstract
The application relates to a proximal end and distal end hole site detection tool for a femoral intramedullary nail, which belongs to the field of intramedullary nail hole site detection tools and comprises a base, wherein a proximal end fixing reference seat is fixed on the base, a proximal end hole site detection table and a distal end hole site detection table are sequentially fixed on the base along the length direction of the fixed intramedullary nail, standard holes are formed in the proximal end hole site detection table and the distal end hole site detection table, cavities for the intramedullary nail to penetrate through are formed below the standard holes of the proximal end hole site detection table and the standard holes of the distal end hole site detection table, the cavities are communicated with the standard holes, and a pressurizing assembly is arranged on the distal end hole site detection table; during detection, the pressurizing assembly is tightly propped against the far end of the intramedullary nail and pushes the far end of the intramedullary nail into the bending direction of the intramedullary nail when the femur is implanted by 5 mm to 10 mm. This application can simulate the implantation state of femoral intramedullary nail and detect its near-end distal end hole site before the operation, can also calibrate the unqualified intramedullary nail in hole site, has reduced the complexity and the danger of intramedullary nail implantation operation.
Description
Technical Field
The application relates to the technical field of intramedullary nail hole site inspection tools, in particular to a proximal end and distal end hole site inspection tool for a femoral intramedullary nail.
Background
The femoral intramedullary nail is used for treating the diaphysis fracture, has the advantages of simple operation, small incision, less damage, convenient intramedullary nail taking out after fracture healing, no need of external fixation after operation, capability of carrying a load for movement in early stage, avoidance of local and systemic complications and the like, and is continuously developed and widely applied to the fracture treatment.
The proximal end and the distal end of the femoral intramedullary nail are provided with a plurality of hole sites for fixing the intramedullary nail and the proximal end and the distal end of the femur, when the femoral intramedullary nail is implanted, a handle is required to be connected to the proximal end of the intramedullary nail, a proximal sighting device for aiming at the hole sites of the intramedullary nail is connected to the handle, an aiming guide rod is fixed on the proximal sighting device along the length of the intramedullary nail, and the distal sighting device is fixed at one end of the aiming guide rod, which is far away from the proximal. The hole positions of the near end and the far end of the intramedullary nail implanted in the femur are determined by the near end sighting device and the far end sighting device respectively in the operation process, so that a locking hole which can be aligned with the hole position of the intramedullary nail is accurately drilled on the femur. Therefore, the precision of the hole site is very important when the femoral intramedullary nail is produced, and once the hole site is provided with deviation, the aiming hole of the aiming device is difficult to aim at the hole site on the intramedullary nail accurately in clinical operation, thereby increasing the complexity and the danger of the operation. Due to the natural radian of the human femur, the distal end of the intramedullary nail can deform gradually according to the bending radian of the skeleton of a patient in the implantation process, and the intramedullary nail can not be ensured to penetrate into a bone marrow channel of the femur without deforming even if the intramedullary nail is reamed in the operation, so that almost all the intramedullary nails on the market at present can deform to a certain extent in the implantation process of a femoral medullary cavity, so that the bending radians of the intramedullary nails are not coincident when the intramedullary nails are in a free state and a use state, and the difficulty in detecting the hole position of the femoral intramedullary nail is increased.
Therefore, it is necessary to develop a detection tool which is convenient for simulating the implantation state of the femoral intramedullary nail before the operation and accurately detects the hole position of the femoral intramedullary nail.
Disclosure of Invention
In order to accurately detect the hole position of the femoral intramedullary nail by simulating the implantation state of the femoral intramedullary nail before an operation, the application provides a proximal end and distal end hole position detection tool of the femoral intramedullary nail.
The application provides a utensil is examined to thighbone intramedullary nail near-end distal end hole site adopts following technical scheme:
a proximal end and distal end hole site detection tool for a femoral intramedullary nail comprises a base, wherein a proximal end fixing reference seat for fixing the proximal end of the intramedullary nail is fixed on the base, a proximal end hole site detection table and a distal end hole site detection table are sequentially fixed on the base along the length direction of the fixed intramedullary nail, standard holes for detecting the hole site of the intramedullary nail are formed in the proximal end hole site detection table and the distal end hole site detection table, cavities for the intramedullary nail to penetrate through are formed below the standard holes of the proximal end hole site detection table and the standard holes of the distal end hole site detection table, the cavities are communicated with the standard holes, and a pressurizing assembly is arranged on the distal end hole site detection table; during detection, the pressurizing assembly is tightly propped against the far end of the intramedullary nail and pushes the far end of the intramedullary nail into the bending direction of the intramedullary nail when the femur is implanted by 5 mm to 10 mm.
By adopting the technical scheme, during detection, the near end of the intramedullary nail to be detected penetrates through the cavity at one end of the near-end hole site detection table far away from the near-end hole site detection table from the far-end hole site detection table and is fixed with the near-end fixed reference base after penetrating to the near-end fixed reference base, and the intramedullary nail to be detected is positioned below the standard holes on the near-end hole site detection table and the far-end hole site detection table at the moment. The deformation that takes place because the thighbone radian when waiting to examine the intramedullary nail distal end and penetrating the thighbone marrow intracavity is simulated through the pressure components, makes the crooked radian of waiting to examine the intramedullary nail on examining the utensil in this scheme be close its crooked radian when clinical use. Under the condition of simulating the actual use condition of the intramedullary nail, the hole positions on the intramedullary nail are detected through the standard holes, and when the intramedullary nail with qualified detected hole positions is clinically used, the possibility that the sighting device cannot accurately aim at the hole positions of the intramedullary nail is reduced, so that the implantation operation of the intramedullary nail in the femur is simpler, and the complexity and the operation risk of the operation of a patient are reduced.
Preferably, the standard hole on the far-end hole position detection platform is a left intramedullary nail standard hole or a right intramedullary nail standard hole.
Because the left and the right of the femur of a human body are in a pair, by adopting the technical scheme, the checking tool provided with the standard hole of the left intramedullary nail is used for correspondingly checking the hole position of the left intramedullary nail of the femur, and the checking tool provided with the standard hole of the right intramedullary nail is used for correspondingly checking the hole position of the right intramedullary nail of the femur.
Preferably, the standard holes on the far-end hole position detection platform are a left intramedullary nail standard hole and a right intramedullary nail standard hole, and the left intramedullary nail standard hole and the right intramedullary nail standard hole are symmetrically arranged.
Through adopting above-mentioned technical scheme, the utensil of examining that will be used for examining right thigh intramedullary nail and examine a utensil of examining left thigh intramedullary nail unites two into one for a pair is examined a utensil and can is examined right thigh intramedullary nail and can be examined left thigh intramedullary nail, overcome left thigh intramedullary nail and right thigh intramedullary nail separately make examine utensil, separately examine and the inconsistent problem of reference surface that exists, make the reference difference between left thigh intramedullary nail after the inspection calibration and the right thigh intramedullary nail littleer, to the patient that needs a pair of intramedullary nail implanted the operation can be more high-efficient safety. On the other hand, the two checking tools are combined into one, so that the manufacturing cost and the installation and use space of the checking tool are saved.
Preferably, the pressurizing assembly comprises a fixing plate, a pressurizing rod and a limiting insertion piece; the fixing plate is fixed with the far-end hole site detection table along the direction vertical to the base; a first through hole is formed in the fixing plate along the thickness direction of the fixing plate, a second through hole is formed in the side wall of the far-end hole site detection table adjacent to the fixing plate, the second through hole is aligned with the first through hole, and the pressurizing rod sequentially penetrates through the first through hole and the second through hole and then abuts against the intramedullary nail; the spacing groove that is used for pegging graft spacing inserted sheet is seted up to the pressure bar outer peripheral face, be located between first wear to establish hole and the second wear to establish the hole during spacing inserted sheet mounted state, the thickness of spacing inserted sheet is 5 millimeters to 10 millimeters.
Cross adopting above-mentioned technical scheme, when the pressure bar wears to locate first wearing hole and second wearing hole downthehole, spacing inserted sheet can utilize its thickness to impel the pressure bar towards the intramedullary nail, and, the spacing groove plays limiting displacement to spacing inserted sheet, make it peg graft the back be difficult to along pressure bar axial displacement, and limiting displacement plays limiting displacement to the pressure bar after pegging graft, make the pressure bar be difficult to along the axial displacement of first wearing hole and second wearing hole, finally realize that the crooked direction of pressure bar when the thighbone is planted is to the stable pressurization of intramedullary nail distal end and impel 5 millimeters to 10 millimeters effect.
Preferably, the first through holes are sequentially arranged on the fixing plate along the length direction of the intramedullary nail.
Through adopting above-mentioned technical scheme for the distal end of waiting to examine the intramedullary nail of different length can be played pressurized effect to the pressurization subassembly.
Preferably, the proximal fixed reference seat is screwed with a proximal locking piece for being screwed with the proximal end of the intramedullary nail.
Through adopting above-mentioned technical scheme, make the fixed reference seat of near-end can realize stable fixed and the convenient effect of dismantling to the near-end of intramedullary nail.
Preferably, the standard hole and the qualified hole on the intramedullary nail are coaxially arranged.
By adopting the technical scheme, the hole site on the standard intramedullary nail is used as a reference to manufacture the standard hole on the checking fixture, and when the detection rod is used for sequentially passing through the standard hole on the checking fixture and the hole site on the intramedullary nail without jamming during detection, the qualification of the hole site on the checked intramedullary nail is indicated.
Preferably, the base is in threaded connection with a positioning screw rod for fixing the base; the utility model discloses a spacing inserted sheet setting of far-end hole site detection platform, including the fixed plate, the fixed plate is detected to the far-end hole site, and the far-end hole site is detected the bench and is dismantled and be connected with the calibration supporting shoe, and during the calibration, the base is fixed, the calibration supporting shoe supports tightly between the lateral wall that the intramedullary nail.
Through adopting above-mentioned technical scheme, when the hole site disalignment of the intramedullary nail hole site after detecting and standard hole, can install the intramedullary nail on examining the circumstances on, support the calibration supporting shoe between the lateral wall of intramedullary nail distal end and detection platform, support the unsettled distal end of intramedullary nail, can directly use external bracing piece to penetrate distal end hole site detection platform from the calibration mouth this moment, support the lateral wall of intramedullary nail tightly, utilize the hammer to strike the one end that the intramedullary nail was kept away from to the bracing piece softly, the crooked radian of calibration intramedullary nail, so that the hole site and the standard hole of intramedullary nail are coaxial, thereby it is qualified to calibrate the hole site on the unqualified intramedullary nail of hole site after will examining. The calibration and the inspection in the scheme are simultaneously carried out on the inspection device, and compared with a calibration method for disassembling the intramedullary nail and knocking the intramedullary nail outside the inspection device after the inspection is unqualified, the method is easy to knock the intramedullary nail while observing the contact ratio of hole positions, and can improve the accuracy of the calibration.
Preferably, a lighting lamp for enabling light to irradiate from the hole position of the intramedullary nail from bottom to top is fixed on the far-end hole position detection table and is positioned below the intramedullary nail.
Through adopting above-mentioned technical scheme, the light of lamp of lighting passes from the hole site of intramedullary nail, if intramedullary nail hole site and standard hole are coaxial, light directly passes the standard hole from the below of standard hole and shines, if the condition of intramedullary nail hole site and standard hole disalignment appears, then light is sheltered from by part or whole, calibrator downward looks from the standard hole top this moment, because the irradiation of lamp of lighting makes the calibrator see clearly very easily and gets the deviation between hole site and the calibration hole on the intramedullary nail, in the calibration process, light in the standard hole can be observed in real time, in order to further improve the accuracy of calibration.
Drawings
Fig. 1 is a schematic view of the entire structure of embodiment 1.
Fig. 2 is an exploded view of the embodiment 1 for illustrating the connection relationship between the proximal locking bolt and the intramedullary nail.
FIG. 3 is a sectional view of a standard hole on the test bed for detecting the position of a proximal hole in example 1.
FIG. 4 is a sectional view of a standard hole on the test bed for detecting a position of a distal hole in example 1.
FIG. 5 is an exploded view showing the connection between the pressurizing unit and the remote hole site testing table in example 1.
Fig. 6 is an enlarged schematic view of a portion a in fig. 4.
FIG. 7 is a schematic view of the entire structure of embodiment 2.
FIG. 8 is a schematic view of the entire structure of embodiment 3.
Description of reference numerals: 1. a base; 2. a reference seat is fixed at the proximal end; 21. a proximal locking bolt; 22. a limiting bump; 3. a near-end hole site detection table; 31. a proximal standard hole; 4. a far-end hole site detection table; 41. a distal standard hole; 411. a left intramedullary nail standard hole; 412. a right intramedullary nail standard hole; 42. a second through hole; 43. calibrating the hole; 44. a sliding groove; 45. calibrating the supporting block; 5. intramedullary nails; 51. a limiting hole; 52. a proximal end hole site; 53. a distal hole site; 6. positioning a screw rod; 7. a pressurizing assembly; 71. a fixing plate; 711. a first through hole; 72. a pressurizing rod; 721. a limiting groove; 73. a limiting insertion sheet; 8. an LED strip.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses utensil is examined to thighbone intramedullary nail near-end distal end hole site. Referring to fig. 1, the checking fixture comprises a horizontally arranged base 1, wherein a near-end fixing reference base 2 for fixing the near end of the intramedullary nail 5, a near-end hole position detecting platform 3 for detecting the near-end hole position of the intramedullary nail 5 and a far-end hole position detecting platform 4 for detecting the far-end hole position of the intramedullary nail 5 are sequentially arranged on the upward surface of the base 1 along the length direction of the intramedullary nail 5. The near-end fixed reference seat 2, the near-end hole site detection platform 3 and the far-end hole site detection platform 4 are respectively provided with a positioning hole penetrating through the base 1 along the vertical direction, the positioning hole is internally threaded with a positioning screw rod 6 penetrating out of the lower surface of the base 1, the near-end fixed reference seat 2, the near-end hole site detection platform 3 and the far-end hole site detection platform 4 are respectively fixed through the positioning screw rod 6, and the base 1 is fixed on a platform horizontally arranged by the positioning screw rod 6.
Referring to fig. 1, a proximal locking member is threadedly connected to an end of the proximal fixation reference base 2 remote from the base 1, and the proximal locking member is a proximal locking bolt 21, and the proximal locking bolt 21 extends along the length of the intramedullary nail 5 toward the intramedullary nail 5 and out of the proximal fixation reference base 2 for threaded connection with the proximal end of the intramedullary nail 5.
Referring to fig. 2, a limit bump 22 is fixed on one surface of the proximal fixing reference seat 2 facing the intramedullary nail 5, and the limit bump 22 is extended along the radial direction of the proximal locking bolt 21 and is used for being inserted into a limit hole 51 formed along the radial direction of the proximal end of the intramedullary nail 5, so that the intramedullary nail 5 installed on the inspection device is not easy to rotate in the circumferential direction.
Referring to fig. 3, a cavity for the intramedullary nail 5 to pass through is formed in the proximal hole site detection platform 3, a proximal standard hole 31 communicated with the cavity is formed in the proximal hole site detection platform 3, and the proximal standard hole 31 and a proximal hole site 52 of a qualified intramedullary nail 5 in clinical use are coaxially arranged.
Referring to fig. 4, a cavity for the intramedullary nail 5 to pass through is formed in the distal hole site detection table 4, a distal standard hole 41 communicated with the cavity is formed in the distal hole site detection table 4, and the distal standard hole 41 and a distal hole site 53 of the qualified intramedullary nail 5 in clinical use are coaxially arranged. The distal standard hole 41 on the distal hole position detection table 4 comprises a left intramedullary nail standard hole 411 for detecting the distal hole position of the left intramedullary nail 5 and a right intramedullary nail standard hole 412 for detecting the distal hole position of the right intramedullary nail 5, and the left intramedullary nail standard hole 411 and the right intramedullary nail standard hole 412 are symmetrically arranged by taking the central axis of the distal hole position detection table 4 in the length direction as a symmetry axis.
Referring to fig. 4, the left and right femurs of the human body have different curvatures, and therefore, the intramedullary nail 5 is manufactured with the left intramedullary nail 5 and the right intramedullary nail 5 having different curvatures according to the human femurs. And because the human body left femur far-end medullary cavity is naturally bent leftwards and right femur far-end medullary cavity is naturally bent rightwards, the far end of the left femur intramedullary nail 5 is easy to bend leftwards when being implanted, and the far end of the right femur intramedullary nail 5 is easy to bend rightwards when being implanted. In this embodiment, two sides of the width direction of the far-end hole site detection table 4 are provided with a group of pressurizing assemblies 7, which are used for simulating the actual condition of stress bending in the medullary cavity when the left-thigh intramedullary nail 5 or the right-thigh intramedullary nail 5 is implanted during detection. When the left intramedullary nail 5 is inspected, the pressurizing assembly 7 is used for pressurizing from the right side of the far end of the left intramedullary nail 5, so that the left intramedullary nail 5 is bent to the left, and when the right intramedullary nail 5 is inspected, the pressurizing assembly 7 is used for pressurizing from the left side of the far end of the right intramedullary nail 5, so that the right intramedullary nail 5 is bent to the right.
Referring to fig. 4, the pressing assembly 7 includes a fixing plate 71, a pressing rod 72 and a limiting insertion sheet 73, the fixing plate 71 is fixed on the outer side of the far-end hole site detection table 4 in the width direction, and the fixing plate 71 is perpendicular to the base 1. A first through hole 711 is formed in the fixing plate 71 along the thickness direction thereof, and a plurality of the first through holes 711 are arranged in the longitudinal direction of the fixing plate 71. The lateral wall of the far-end hole position detection table 4 adjacent to the fixing plate 71 is provided with a second through hole 42, the second through hole 42 is aligned with the first through hole 711, the second through holes 42 are arranged along the length direction of the lateral wall of the far-end hole position detection table 4, and the number of the first through holes 711 and the number of the second through holes 42 are used for adapting to the femoral intramedullary nails 5 to be detected with different lengths. The pressure rod 72 passes through the first through hole 711 and the second through hole 42 in sequence along a direction parallel to the base 1 and abuts against the distal end of the intramedullary nail 5.
Referring to fig. 5, a limiting groove 721 is circumferentially cut on the outer circumferential surface of the pressing rod 72, when pressing, the pressing rod 72 is used to push the distal end of the intramedullary nail 5, so that the limiting groove 721 is located between the adjacent fixing plate 71 and the side wall of the distal hole site detection table 4, a limiting insertion sheet 73 with a thickness of 5 mm to 10 mm is inserted into the limiting groove 721, the pressing position of the intramedullary nail 5 is locked by the pressing rod 72, and the pressing assembly 7 can push the intramedullary nail 5 forward by 5 mm to 10 mm along the radial direction of the intramedullary nail 5.
Referring to fig. 5, the hole site testing fixture in the embodiment can calibrate the intramedullary nail 5 with unqualified hole sites when detecting the hole site of the intramedullary nail 5. Specifically, the positions of the far-end hole site detection table 4 close to the fixing plates 71 on the two sides of the far-end hole site detection table are respectively provided with the calibration holes 43 from top to bottom, and the calibration holes 43 are communicated with the cavity on the far-end hole site detection table 4, so that the upper end surface of the far-end hole site detection table 4 is in an I shape in plan view.
Referring to fig. 6, the inner side of each side wall of the far-end hole site detection table 4 adjacent to the fixed plate 71 is provided with a sliding groove 44, the length of the sliding groove 44 is equal to the length of the far-end hole site detection table 4, and the sliding groove 44 is slidably connected with a calibration support block 45. During the calibration, calibration supporting shoe 45 is used for supporting at the unsettled distal end of intramedullary nail 5, the calibrator chooses for use the bracing piece to wear into the cavity of distal end hole site detection platform 4 and support tightly with intramedullary nail 5 from calibration hole 43, according to the difference of 5 hole sites of intramedullary nail and standard hole, utilize the hammer to strike the bracing piece gently and keep away from the one end of intramedullary nail 5, and, the spacing fastener of V style of calligraphy or U type can be fixed to the one end of bracing piece and 5 butts of intramedullary nail, stability of butt between bracing piece and the intramedullary nail 5 during with the increase calibration. According to the length of the intramedullary nail 5 and the distance between the intramedullary nail and the inner side wall of the far end hole position detection table 4, the intramedullary nail is provided with calibration support blocks 45 with different thicknesses in the embodiment so as to stably support different intramedullary nails 5.
Referring to fig. 5, the distal hole site detection station 4 is fixed with a light-striking lamp below the intramedullary nail 5 to illuminate the cavity of the distal hole site detection station 4 from below the intramedullary nail 5. The light of lighting is LDE lamp area 8, and LED lamp area 8 can detect platform 4 bonding with distal end hole site like this embodiment, also can detect platform 4 fixedly with distal end hole site through the screw in another embodiment. The LED lamp strip 8 below the left intramedullary nail standard hole 411 and the right intramedullary nail standard hole 412 is consistent with the bending radians of the corresponding standard holes respectively, when the LED lamp strip 8 is opened, light rays upwards irradiate from the hole position of the intramedullary nail 5, and a calibrator is helped to observe the concentricity of the hole position of the intramedullary nail 5 and the standard holes on the distal hole position detection table 4 during calibration.
The implementation principle of the embodiment of the application is as follows: when the proximal and distal hole site inspection tool for the femoral intramedullary nail in the embodiment is used, the inspection tool is fixed on a table board, and one left-femoral intramedullary nail 5 or one right-femoral intramedullary nail 5 is inspected at one time. The intramedullary nail 5 to be detected is fixed on the detection tool by the proximal end fixed reference seat 2, the actual use working condition of the intramedullary nail 5 to be detected is simulated by the pressurizing assembly 7, and the far end of the intramedullary nail 5 is pressurized, so that the radian of the intramedullary nail is similar to the curvature of the intramedullary nail in actual use. At the moment, a rod-shaped detection rod sequentially penetrates through the standard holes and the corresponding hole positions on the intramedullary nail 5, and when the detection rod sequentially penetrates through the standard holes and the corresponding hole positions of the intramedullary nail 5 without jamming, the hole positions of the intramedullary nail 5 are qualified; when the detection rod is jammed in the hole position of the intramedullary nail 5, the hole position of the intramedullary nail 5 is indicated to be unqualified, at the moment, under the condition that the intramedullary nail 5 is fixed on the detection tool, the LDE lamp strip 8 is opened, the calibration support block 45 capable of abutting against the far end of the intramedullary nail 5 is installed, the standard hole on the detection tool is used as a reference, the hammer and the support rod are used for knocking and calibrating the intramedullary nail 5, and the detection rod can sequentially penetrate through the standard hole and the hole position of the intramedullary nail 5 corresponding to the standard hole without jamming.
Example 2:
the embodiment of the application discloses utensil is examined to proximal end distal hole site of femoral intramedullary nail and embodiment 1 difference lies in, refer to fig. 7, the standard hole on distal hole site detection platform 4 is left intramedullary nail standard hole 411, sliding tray 44, calibration supporting shoe 45 only set up in the inboard of left intramedullary nail 5 bending direction, LDE lamp area 8 is located the below of left intramedullary nail standard hole 411, pressure components 7 only set up in the outside of left intramedullary nail 5 bending direction, observe from the direction that is close to the fixed reference base 2 of proximal end, pressure components 7 in this embodiment can follow the right side and pressurize left intramedullary nail 5, make its distal end take place the bending to the left, so that examine utensil in this embodiment can inspect and calibrate left femoral intramedullary nail 5.
Example 3:
the embodiment of the application discloses utensil is examined to proximal end distal end hole site of femoral intramedullary nail 5 and embodiment 1 difference lies in, refer to fig. 8, the standard hole on distal end hole site detection platform 4 is right intramedullary nail standard hole 412, sliding tray 44, calibration supporting shoe 45 only set up in the inboard of the crooked direction of right intramedullary nail 5, LDE lamp area 8 is located the below of right intramedullary nail standard hole 412, pressure components 7 only set up in the outside of the crooked direction of right intramedullary nail 5, observe from the direction that is close to the fixed reference base 2 of proximal end, pressure components 7 in this embodiment can follow the left side and pressurize right intramedullary nail 5, make its distal end take place the bending to the right, so that examine the utensil in this embodiment can examine and calibrate right femoral intramedullary nail 5.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a utensil is examined to thighbone intramedullary nail near-end distal hole site, includes base (1), its characterized in that: a near-end fixing reference seat (2) for fixing the near end of an intramedullary nail (5) is fixed on the base (1), a near-end hole site detection table (3) and a far-end hole site detection table (4) are sequentially fixed on the base (1) along the length direction of the fixed intramedullary nail (5), standard holes for detecting the hole site of the intramedullary nail (5) are formed in the near-end hole site detection table (3) and the far-end hole site detection table (4), cavities for the intramedullary nail (5) to penetrate through are formed below the standard holes of the near-end hole site detection table (3) and the standard holes of the far-end hole site detection table (4), the cavities are communicated with the standard holes, and a pressurizing assembly (7) is arranged on the far-end hole site detection table (4); during detection, the pressurizing component (7) is tightly propped against the far end of the intramedullary nail (5) and pushes the far end of the intramedullary nail (5) to 5-10 mm along the bending direction of the intramedullary nail (5) during femoral implantation.
2. The inspection device for hole positions at the proximal end and the distal end of a femoral intramedullary nail of claim 1, wherein: the standard hole on the far-end hole site detection table (4) is a left intramedullary nail standard hole (411) or a right intramedullary nail standard hole (412).
3. The inspection device for hole positions at the proximal end and the distal end of a femoral intramedullary nail of claim 1, wherein: the standard holes on the far-end hole position detection table (4) are a left intramedullary nail standard hole (411) and a right intramedullary nail standard hole (412), and the left intramedullary nail standard hole (411) and the right intramedullary nail standard hole (412) are symmetrically arranged.
4. The inspection device for the hole position of the proximal end and the distal end of the femoral intramedullary nail of claim 2 or 3, wherein: the pressurizing assembly (7) comprises a fixing plate (71), a pressurizing rod (72) and a limiting insertion sheet (73); the fixing plate (71) is fixed with the far-end hole site detection table (4) along the direction vertical to the base (1); a first through hole (711) is formed in the fixing plate (71) along the thickness direction of the fixing plate, a second through hole (42) is formed in the side wall of the far-end hole position detection platform (4) adjacent to the fixing plate (71), the second through hole (42) is aligned with the first through hole (711), and the pressurizing rod (72) sequentially penetrates through the first through hole (711) and the second through hole (42) and then abuts against the intramedullary nail (5); the outer peripheral surface of the pressurizing rod (72) is provided with a limiting groove (721) for inserting a limiting insertion sheet (73), the limiting insertion sheet (73) is positioned between the first penetrating hole (711) and the second penetrating hole (42) in the installation state, and the thickness of the limiting insertion sheet (73) is 5-10 mm.
5. The inspection device for hole positions at the proximal end and the distal end of a femoral intramedullary nail of claim 4, wherein: the first through holes (711) are sequentially arranged on the fixing plate (71) along the length direction of the intramedullary nail (5).
6. The inspection device for the hole position of the proximal end and the distal end of the femoral intramedullary nail of claim 2 or 3, wherein: the proximal end fixed reference seat (2) is in threaded connection with a proximal end locking piece which is in threaded connection with the proximal end of the intramedullary nail (5).
7. The inspection device for the hole position of the proximal end and the distal end of the femoral intramedullary nail of claim 2 or 3, wherein: the standard holes and the qualified hole positions on the intramedullary nail (5) are coaxially arranged.
8. The inspection device for hole positions at the proximal end and the distal end of a femoral intramedullary nail of claim 4, wherein: a positioning screw rod (6) for fixing the base (1) is connected to the base in a threaded manner; the utility model discloses a calibration of a hole site detection platform, including base (1), distal end hole site detection platform (4), base (45), spacing inserted sheet (73) set up, calibration mouth has been seted up to one side that distal end hole site detection platform (4) is close to fixed plate (71), just the distal end hole site detects and can dismantle on platform (4) and be connected with calibration supporting shoe (45), and during the calibration, base (1) is fixed, calibration supporting shoe (45) support tightly in intramedullary nail (5) and distal end hole site detect between the lateral wall of platform, just calibration supporting shoe.
9. The inspection device for the hole position of the proximal end and the distal end of the femoral intramedullary nail of claim 2 or 3, wherein: and a lighting lamp for enabling light to irradiate from the hole position of the intramedullary nail (5) from bottom to top is fixed on the far-end hole position detection table (4) below the intramedullary nail (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620576.3A CN111700673A (en) | 2020-06-30 | 2020-06-30 | Utensil is examined to thighbone intramedullary nail near-end distal end hole site |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620576.3A CN111700673A (en) | 2020-06-30 | 2020-06-30 | Utensil is examined to thighbone intramedullary nail near-end distal end hole site |
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| CN111700673A true CN111700673A (en) | 2020-09-25 |
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| CN202010620576.3A Pending CN111700673A (en) | 2020-06-30 | 2020-06-30 | Utensil is examined to thighbone intramedullary nail near-end distal end hole site |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262031A (en) * | 2021-06-28 | 2021-08-17 | 宁波兆盈医疗器械有限公司 | Tibial intramedullary nail distal hole aiming gauge and use method thereof |
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2020
- 2020-06-30 CN CN202010620576.3A patent/CN111700673A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262031A (en) * | 2021-06-28 | 2021-08-17 | 宁波兆盈医疗器械有限公司 | Tibial intramedullary nail distal hole aiming gauge and use method thereof |
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