CN107595378B - Femoral intramedullary nail distal collimator and aiming method - Google Patents
Femoral intramedullary nail distal collimator and aiming method Download PDFInfo
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- CN107595378B CN107595378B CN201711157987.8A CN201711157987A CN107595378B CN 107595378 B CN107595378 B CN 107595378B CN 201711157987 A CN201711157987 A CN 201711157987A CN 107595378 B CN107595378 B CN 107595378B
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- 238000000034 method Methods 0.000 title abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 39
- 210000000689 upper leg Anatomy 0.000 abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 description 4
- 208000008924 Femoral Fractures Diseases 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008685 targeting Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The invention discloses a far-end collimator of a femoral intramedullary nail and a sighting method, which adopts a three-dimensional adjusting frame fixed on a carrier, wherein the tail end of the three-dimensional adjusting frame is provided with a left universal joint and a right universal joint, the free ends of the left universal joint and the right universal joint are respectively provided with a shaft hole, an adjusting rod is arranged in the two shaft holes, and two parallel diameter holes penetrating the center of the adjusting rod are arranged on the adjusting rod; the angle of the intramedullary nail in the femur is observed by respectively arranging X-ray transmission on the horizontal plane and the vertical plane of the femur, and then the left universal joint and the right universal joint are regulated to enable the regulating rod to be parallel to the intramedullary nail in the femur and have the same height; a locking screw is installed into each bore and into the corresponding locking screw hole. According to the invention, through the adjustment of the left universal joint, the right universal joint and the connecting rod and the locking piece, the arbitrary angle adjustment of the adjusting rod can be realized, so that the success rate of distal aiming of the femoral intramedullary nail reaches one hundred percent.
Description
Technical field:
the invention belongs to the technical field of distal aiming of locking screws of femoral intramedullary nails, and particularly relates to a distal aiming device and an aiming method of a femoral intramedullary nail.
The background technology is as follows:
currently, femoral intramedullary nails are used clinically for fractures of the femoral region, and are a minimally invasive treatment method for treating femoral fractures. The distal locking difficulty often occurs due to the degree of deformation that occurs after the intramedullary nail is implanted into the bone. To reduce the occurrence of distal stapling difficulties, mechanical aiming devices are typically used to increase the success rate of stapling. However, the basic principle of the mechanical sighting device used at present is that the deflection of the sighting device is regulated through a positioning rod, the success rate of first locking nails in actual clinical application is not high, and the sighting device can be successfully used only by drilling holes for many times. The deflection of the sighting device is regulated through the locating rod, and the sighting device cannot be regulated after being fixed, but the deflection occurs when the locating rod is used for regulating the drilling, so that the difficult condition of locking nails during drilling is necessarily caused.
Skin at the fracture is cut in the operation process, and in order to achieve the purpose of minimally invasive surgery with a small wound area, the skin is usually cut into a small wound, the required femur end is inserted into an intramedullary nail, and then the distal end of the intramedullary nail is fixed by a locking screw. Because the femoral component has a large bone curvature and the bone plate is located below the skin level, it is not possible to visually inspect the bone plate, and therefore the location of the corresponding locking screw hole cannot be found accurately. Because the intramedullary nail has high technical requirements for treating femoral fracture, the intramedullary nail cannot be fully developed, one of the difficulties is that the distal end locking is difficult, and various aiming devices (freehand aiming, mechanical aiming and magnetic navigation) exist at present, so that a plurality of defects exist.
The invention comprises the following steps:
aiming at the problems of high operation difficulty and low popularization rate caused by the lack of an effective intramedullary nail distal locking screw aiming instrument in the process of treating femoral fracture in the current intramedullary nail, the invention designs a novel distal aiming device, so that the success rate of distal aiming of the femoral intramedullary nail reaches one hundred percent.
Techniques for scheme for the production of a semiconductor device the method comprises the following steps: the distal collimator of the femoral intramedullary nail comprises a clamping component connected with a fixed carrier, wherein a lifting translation mechanism is arranged on the clamping component, a longitudinal translation mechanism is arranged on the lifting translation mechanism, two transverse translation mechanisms are arranged on the longitudinal translation mechanism in parallel, and universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms; the universal joint comprises a universal shaft inner sphere and an inner sphere locking pin which are matched and assembled together, the inner sphere locking pin is vertically arranged on the side face of the universal shaft inner sphere, a shaft hole penetrating through the center of the universal shaft inner sphere is formed in the inner sphere shaft hole of the left universal joint and the inner sphere shaft hole of the right universal joint, an adjusting rod is installed in the inner sphere shaft hole of the left universal joint and the right universal joint in a penetrating mode, two radial holes penetrating through the center of the adjusting rod and parallel to the adjusting rod are formed in the adjusting rod, the distance between the two radial holes is equal to the distance between two parallel locking screw holes in the inner end of an intramedullary nail, and a locking screw is arranged in each radial hole Bie An.
The tail ends of the two transverse translation mechanisms are respectively provided with a locking block, each locking block is provided with a vertical hole, and the side wall of each locking block is vertically provided with a connecting rod locking pin; the universal shaft outer spherical shell is fixedly provided with a connecting rod, the connecting rod is installed in a vertical hole of the corresponding locking block in a matching mode, and the connecting rod is fixed through a connecting rod locking pin.
The vertical dovetail sliding blocks are arranged at the inner ends of the two independent longitudinal rods respectively and are matched and installed in the corresponding vertical dovetail sliding grooves.
The two transverse sleeves positioned on the longitudinal beam are respectively provided with a vertical dovetail chute, the inner ends of the transverse rods are respectively provided with a vertical dovetail slide block, and the vertical dovetail slide blocks are matched and installed in the corresponding vertical dovetail chutes.
One end or two ends of the adjusting rod are provided with free hanging rods, and the axes of the free hanging rods are perpendicular to the axes of the two diameter holes.
A horizontal reference rod is arranged at the exposed end of the intramedullary nail, and the horizontal reference rod is parallel to two parallel locking screw holes at the inner end of the intramedullary nail; or, a handle is fixed at the exposed end of the intramedullary nail, a positioning clamping groove is arranged on the handle, a level gauge which can be flexibly detached is arranged in the positioning clamping groove, and the level gauge is parallel to two parallel locking screw holes at the inner end of the intramedullary nail.
A vertical rotating shaft and a vertical rotating sleeve are arranged in the middle of the lifting adjusting and moving mechanism, are sleeved together, and a vertical rotating shaft locking pin for locking the vertical rotating shaft is vertically connected to the side wall of the vertical rotating sleeve; or, the lifting regulator is characterized in that a fixed sleeve is arranged on the clamping part, an upright post is sleeved in the fixed sleeve in a matching way, a longitudinal sleeve is arranged at the upper end of the upright post, a longitudinal rod locking pin is vertically arranged on the side surface of the longitudinal sleeve, and a longitudinal rod of a longitudinal translation mechanism is arranged in the longitudinal sleeve in a matching way; the transverse sleeve is arranged on the longitudinal rod, the transverse rod locking pin is vertically arranged on the side wall of the transverse sleeve, and the transverse rod of the transverse translation mechanism is sleeved in the transverse sleeve in a matching way.
The lifting regulator is characterized in that a stand column is fixed on a clamping part, a vertical sleeve capable of lifting and sliding is sleeved on the upper side of the stand column, a stand column locking pin is installed, a vertical sleeve is arranged on the vertical sleeve, a vertical rod locking pin is vertically installed on the side surface of the vertical sleeve, and a vertical rod of a longitudinal translation mechanism is installed in the vertical sleeve in a matching manner; the transverse sleeve is arranged on the longitudinal rod, the transverse rod locking pin is vertically arranged on the side wall of the transverse sleeve, and the transverse rod of the transverse translation mechanism is sleeved in the transverse sleeve in a matching way.
A distal targeting method of intramedullary nail of femur, adjust the intramedullary nail outer end to set up the horizontal reference component at first, make it keep the level, the horizontal reference pole is parallel with two parallel locking screw holes of intramedullary nail inner; a three-dimensional adjusting frame fixed on a carrier is adopted, the tail end of the three-dimensional adjusting frame is provided with a left universal joint and a right universal joint, the free ends of the left universal joint and the right universal joint are respectively provided with a shaft hole, an adjusting rod is arranged in the two shaft holes, and two parallel radial holes penetrating through the center of the adjusting rod are arranged on the adjusting rod; then the angle of the intramedullary nail in the femur is observed by respectively arranging X-ray transmission on the horizontal plane and the vertical plane of the femur, the three-dimensional adjusting frame is adjusted to enable the adjusting rod to be positioned at a position close to the parallel position of the intramedullary nail in the femur, the left universal joint and the right universal joint are respectively adjusted to enable the adjusting rod to be parallel to the intramedullary nail in the femur and have the same height; and then the adjusting rod and the intramedullary nail are respectively rotated to enable the two radial holes on the adjusting rod and the two locking screw holes at the inner ends of the intramedullary nail to be horizontally aligned, and locking screws are installed in each radial hole and enter the corresponding locking screw holes.
The method for keeping the two diameter holes on the adjusting rod horizontal is that a free hanging rod is arranged at the end part of the adjusting rod, and the axis of the free hanging rod is perpendicular to the axis of the two diameter holes.
The invention has the following beneficial effects: the invention can enable the left and right universal joint inner end adjusting rods to move to a range which is approximately parallel to the intramedullary nail at the inner end of the femur through adjusting the three-dimensional frame. The outer spherical shell of the universal shaft and the inner spherical body of the universal shaft can swing at will, so that the shaft hole of the inner spherical body of the universal shaft is at any angle. When the left universal joint and the right universal joint are matched, the adjustment of the connecting rod and the locking block is combined, so that any angle adjustment of the adjusting rod can be realized. The aim of adjusting any angle of the adjusting rod in a proper range is fulfilled, and the success rate of distal aiming of the femoral intramedullary nail reaches one hundred percent.
Under the action of X-ray projection, the retaining and adjusting rod is parallel to the intramedullary nail in the femur and positioned at the same height. Thereby facilitating translation of the locking screw from the two locating holes of the adjustment rod into the two locking screw holes at the inner end of the intramedullary nail.
By arranging the free hanging rod at the end part of the adjusting rod, two adjusting holes on the adjusting rod can be automatically kept in a horizontal state. The inner sphere locking pin is locked after the free hanging rod is kept in a free hanging state after the inner sphere locking pin is loosened after the adjusting rod is adjusted to be parallel to the intramedullary nail at the same height.
The horizontal reference rod is arranged at the outer end of the intramedullary nail, so that the intramedullary nail can be adjusted from the outer side, and the two locking screw holes at the inner end of the intramedullary nail can be kept horizontal.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic view of another relationship between the longitudinal sleeve and the longitudinal rod of FIG. 1.
Fig. 3 is a schematic view of another relationship between the cross-braces and cross-bars of fig. 1.
Fig. 4 is a schematic diagram of two independent three-dimensional adjustment structures implemented using double columns.
In the figure, reference numeral 1 is a clamping component, 2 is a fixed sleeve, 3 is a stand column, 4 is a stand column locking pin, 5 is a longitudinal sleeve, 5a is an adjusting sleeve, 6 is a longitudinal rod, 6a is an independent longitudinal rod, 7 is a longitudinal rod locking pin, 8 is a transverse sleeve, 9 is a transverse rod, 10 is a transverse rod locking pin, 11 is a locking block, 12 is a connecting rod, 13 is a connecting rod locking pin, 14 is a universal shaft outer spherical shell, 15 is a universal shaft inner spherical body, 16 is an inner spherical body locking pin, 17 is an adjusting rod, 18 is an adjusting rod positioning hole, 19 is a locking screw, 20 is a free vertical rod, 21 is a vertical rotating shaft, 22 is a vertical rotating sleeve, 23 is a vertical rotating shaft locking pin, 24 is an intramedullary nail, 25 is an adjusting end, 26 is a horizontal reference rod, 27 is a handle, 28 is a level gauge, 29 is a positioning clamping groove, 30 is a vertical dovetail chute, 31 is a vertical dovetail sliding block, 32 is a blocking cover, and 33 is a lifting adjusting knob.
The specific embodiment is as follows:
implementation of the embodiments example 1: the distal collimator of the intramedullary nail 24 shown in fig. 1 comprises a clamping member 1 attached to a fixed carrier, which may be a bed rail or instrument holder, or other ground or wall-mounted member. The clamping members 1 are of various types, mainly fixed.
The three-dimensional translation mechanism is arranged on the clamping part 1 and mainly comprises a lifting translation mechanism arranged on the clamping part 1, a longitudinal translation mechanism arranged on the lifting translation mechanism, and two transverse translation mechanisms arranged on the longitudinal translation mechanism in parallel. Specifically, a fixed sleeve is arranged on the clamping component 1, an upright post is sleeved in the fixed sleeve in a matching way, a longitudinal sleeve is arranged at the upper end of the upright post, a longitudinal rod locking pin is vertically arranged on the side surface of the longitudinal sleeve, and a longitudinal rod of a longitudinal translation mechanism is arranged in the longitudinal sleeve in a matching way; the transverse sleeve is arranged on the longitudinal rod, the transverse rod locking pin is vertically arranged on the side wall of the transverse sleeve, and the transverse rod of the transverse translation mechanism is sleeved in the transverse sleeve in a matching way.
The locking blocks 11 are respectively arranged at the tail ends of the two transverse translation mechanisms (namely, the tail ends of the two parallel cross bars), each locking block 11 is provided with a vertical hole, and the side wall of each locking block 11 is vertically provided with a connecting rod locking pin 13.
In FIG. 1The universal joint comprises a universal shaft inner sphere 15 and an inner sphere locking pin 16 which are matched and assembled together, the inner sphere locking pin 16 is vertically arranged on the side surface of the universal shaft inner sphere 15, a connecting rod 12 is fixed on a universal shaft outer sphere shell 14, the connecting rod 12 is matched and installed in a vertical hole of a corresponding locking block 11, and the connecting rod 12 is fixed through the connecting rod locking pin 13.
The inner ball 15 of the universal shaft is provided with a shaft hole penetrating through the center of the inner ball, and an adjusting rod 17 is installed in the shaft holes of the inner balls of the left universal joint and the right universal joint in a penetrating way. Two parallel radial holes penetrating the center of the adjusting rod 17 are arranged on the adjusting rod, the distance between the two radial holes is equal to the distance between two parallel locking screw 19 holes at the inner end of the intramedullary nail 24, and each radial hole is internally provided with a locking screw 19 at the part Bie An.
Referring to fig. 1, an adjustment section and a horizontal reference rod 26 are provided at the exposed end of the intramedullary nail 24, see fig. 1The horizontal reference rod 26 is shown parallel to the two parallel locking screw 19 bores at the inner end of the intramedullary nail 24.
Example 2: see fig. 1As shown, in the embodiment 1, a free hanging rod 20 is provided at one end or both ends of the adjusting rod 17, and the axis of the free hanging rod 20 is perpendicular to the axis of the two-diameter holes.
Example 3: see fig. 1The vertical rotating shaft and the vertical rotating sleeve are sleeved together, and a vertical rotating shaft locking pin for locking the vertical rotating shaft is vertically connected to the side wall of the vertical rotating sleeve.
Example 4: see fig. 1On the basis of the embodiment 1, a vertical column is fixed on a clamping component 1, a vertical sleeve capable of lifting and sliding is sleeved on the upper side of the vertical column, a vertical sleeve is arranged on the vertical sleeve, a vertical rod locking pin is vertically arranged on the side surface of the vertical sleeve, and a vertical rod of a vertical translation mechanism is arranged in the vertical sleeve in a matching manner; the transverse sleeve is arranged on the longitudinal rod, the transverse rod locking pin is vertically arranged on the side wall of the transverse sleeve, and the transverse rod of the transverse translation mechanism is sleeved in the transverse sleeve in a matching way.
Example 5: referring to fig. 2, on the basis of embodiment 1, locking blocks are respectively installed at the tail ends of two transverse translation mechanisms, each locking block is provided with a vertical hole, and the side wall of each locking block is vertically provided with a connecting rod locking pin; the universal shaft outer spherical shell is fixedly provided with a connecting rod, the connecting rod is installed in a vertical hole of the corresponding locking block in a matching mode, and the connecting rod is fixed through a connecting rod locking pin.
Example 6: referring to fig. 3, on the basis of embodiment 1, an adjusting sleeve is fixed at the upper end of the upright post, vertical dovetail sliding grooves are respectively formed in two sides of the adjusting sleeve, the longitudinal rods are two independent symmetrical longitudinal rods, vertical dovetail sliding blocks are respectively arranged at the inner ends of the two independent longitudinal rods, and the vertical dovetail sliding blocks are installed in the corresponding vertical dovetail sliding grooves in a matching manner.
Example 7: referring to fig. 4, on the basis of example 1, the upright 3 is arranged as two parallel uprights, so that there are two independent three-dimensional adjustment mechanisms on the same base.
Example 8: a method of distal targeting of femoral intramedullary nail 24 comprising the steps of.
The outer end of the intramedullary nail 24 is first adjusted to be provided with a horizontal reference rod 26 to keep it horizontal, which horizontal reference rod 26 is parallel to the two parallel locking screw 19 holes at the inner end of the intramedullary nail 24.
Next, a three-dimensional adjusting frame fixed on the carrier is used, and the three-dimensional adjusting frame can be referred to as adjusting price shown in FIG. 1. The tail end of the three-dimensional adjusting frame is provided with a left universal joint and a right universal joint, the free ends of the left universal joint and the right universal joint are respectively provided with a shaft hole, an adjusting rod 17 is arranged in the two shaft holes, and two parallel radial holes penetrating through the center of the adjusting rod 17 are formed in the adjusting rod 17.
Then, the angle of the intramedullary nail 24 is observed by respectively setting X-ray transmission on the horizontal plane and the vertical plane of the femur, the three-dimensional adjusting frame is adjusted to enable the adjusting rod 17 to be positioned in a position close to being parallel to the intramedullary nail 24, and the left universal joint and the right universal joint are respectively adjusted to enable the adjusting rod 17 to be parallel to the intramedullary nail 24 and have the same height.
Finally, the adjustment rod 17 and the intramedullary nail 24 are rotated, respectively, so that the two radial holes on the adjustment rod 17 and the two locking screw 19 holes at the inner end of the intramedullary nail 24 are kept in horizontal alignment, and the locking screw 19 is installed into each radial hole and enters the corresponding locking screw 19 hole.
Example 9: on the basis of embodiment 8, the method for keeping two radial holes on the adjusting rod 17 horizontal is to provide a free hanging rod 20 at the end of the adjusting rod 17, and the axis of the free hanging rod 20 is perpendicular to the axes of the two radial holes.
Example 10: based on example 8, the method of adjusting the intramedullary nail to maintain the two locking screw holes horizontal may also be to fix a handle 27 at the exposed end of the intramedullary nail, as shown in fig. 1. A positioning clamping groove 29 is arranged on the handle 27, a level gauge 28 which can be flexibly detached is arranged in the positioning clamping groove 29, and the level gauge 28 is parallel to two parallel locking screw holes at the inner end of the intramedullary nail.
Claims (5)
1. A distal collimator of a femoral intramedullary nail comprises a clamping component connected with a fixed carrier, a lifting translation mechanism arranged on the clamping component, the lifting translation mechanism is provided with a longitudinal translation mechanism, and the longitudinal translation mechanism is provided with two transverse translation mechanisms in parallel, which are characterized in that: universal joints are respectively arranged at the tail ends of the two transverse translation mechanisms; the universal joint comprises a universal shaft inner sphere and an inner sphere locking pin which are matched and assembled together, the inner sphere locking pin is vertically arranged on the side surface of the universal shaft inner sphere, the universal shaft inner sphere is provided with a shaft hole penetrating through the center of the universal shaft inner sphere, an adjusting rod is installed in the inner sphere shaft hole of the left universal joint and the right universal joint in a penetrating way, two radial holes penetrating through the center of the adjusting rod and parallel to the adjusting rod are arranged on the adjusting rod, the distance between the two radial holes is equal to the distance between two parallel locking screw holes at the inner end of an intramedullary nail, and a locking screw is arranged in each radial hole Bie An; the tail ends of the two transverse translation mechanisms are respectively provided with a locking block, each locking block is provided with a vertical hole, and the side wall of each locking block is vertically provided with a connecting rod locking pin; a connecting rod is fixed on the outer spherical shell of the universal shaft, is matched and installed in a vertical hole of the corresponding locking block, and is fixed by a connecting rod locking pin; one end or two ends of the adjusting rod are provided with free hanging rods, and the axes of the free hanging rods are perpendicular to the axes of the two diameter holes; a horizontal reference rod is arranged at the exposed end of the intramedullary nail, and the horizontal reference rod is parallel to two parallel locking screw holes at the inner end of the intramedullary nail; or, a handle is fixed at the exposed end of the intramedullary nail, a positioning clamping groove is arranged on the handle, a level gauge which can be flexibly detached is arranged in the positioning clamping groove, and the level gauge is parallel to two parallel locking screw holes at the inner end of the intramedullary nail.
2. The femoral intramedullary nail distal collimator of claim 1, wherein: the vertical dovetail sliding blocks are arranged at the inner ends of the two independent longitudinal rods respectively and are matched and installed in the corresponding vertical dovetail sliding grooves.
3. The femoral intramedullary nail distal collimator of claim 1, wherein: the two transverse sleeves positioned on the longitudinal beam are respectively provided with a vertical dovetail chute, the inner ends of the transverse rods are respectively provided with a vertical dovetail slide block, and the vertical dovetail slide blocks are matched and installed in the corresponding vertical dovetail chutes.
4. The femoral intramedullary nail distal collimator of claim 1, wherein: a vertical rotating shaft and a vertical rotating sleeve are arranged in the middle of the lifting translation mechanism, are sleeved together, and a vertical rotating shaft locking pin for locking the vertical rotating shaft is vertically connected to the side wall of the vertical rotating sleeve; or, the lifting translation mechanism is characterized in that a fixed sleeve is arranged on the clamping part, an upright post is sleeved in the fixed sleeve in a matching way, a longitudinal sleeve is arranged at the upper end of the upright post, a longitudinal rod locking pin is vertically arranged on the side surface of the longitudinal sleeve, and a longitudinal rod of the longitudinal translation mechanism is arranged in the longitudinal sleeve in a matching way; the transverse sleeve is arranged on the longitudinal rod, the transverse rod locking pin is vertically arranged on the side wall of the transverse sleeve, and the transverse rod of the transverse translation mechanism is sleeved in the transverse sleeve in a matching way.
5. The femoral intramedullary nail distal collimator of claim 1, wherein: the lifting translation mechanism is characterized in that a stand column is fixed on a clamping part, a vertical sleeve capable of lifting and sliding is sleeved on the upper side of the stand column, a stand column locking pin is installed, a longitudinal sleeve is arranged on the vertical sleeve, a longitudinal rod locking pin is vertically installed on the side surface of the longitudinal sleeve, and a longitudinal rod of the longitudinal translation mechanism is installed in the longitudinal sleeve in a matched mode; the transverse sleeve is arranged on the longitudinal rod, the transverse rod locking pin is vertically arranged on the side wall of the transverse sleeve, and the transverse rod of the transverse translation mechanism is sleeved in the transverse sleeve in a matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157987.8A CN107595378B (en) | 2017-11-20 | 2017-11-20 | Femoral intramedullary nail distal collimator and aiming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157987.8A CN107595378B (en) | 2017-11-20 | 2017-11-20 | Femoral intramedullary nail distal collimator and aiming method |
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| Publication Number | Publication Date |
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| CN107595378A CN107595378A (en) | 2018-01-19 |
| CN107595378B true CN107595378B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711157987.8A Active CN107595378B (en) | 2017-11-20 | 2017-11-20 | Femoral intramedullary nail distal collimator and aiming method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742977B (en) * | 2018-05-11 | 2020-09-11 | 北京国械堂科技发展有限责任公司 | Orthopedics traction device |
| CN110063780A (en) * | 2019-05-22 | 2019-07-30 | 陈聚伍 | Digitize neck of femur guide pin machinery guidance pointing instrumentation |
| CN110063779A (en) * | 2019-05-23 | 2019-07-30 | 陈聚伍 | Visualize intra medullary nail far-end pointing instrumentation |
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|---|---|---|---|---|
| CN2662844Y (en) * | 2003-08-27 | 2004-12-15 | 王庆贤 | Improved femoral intramedullary nail aiming instrument |
| WO2011006413A1 (en) * | 2009-07-14 | 2011-01-20 | 常州市康辉医疗器械有限公司 | Intramedullary nail fixing device for proximal femoral fracture |
| CN201847767U (en) * | 2010-10-28 | 2011-06-01 | 常州康鼎医疗器械有限公司 | Far-end aiming device for lengthened intramedullary nail |
| CN104688322A (en) * | 2015-03-11 | 2015-06-10 | 北京德康健医药科技有限公司 | Positioning device for distal locking of intramedullary nail |
| WO2015122807A1 (en) * | 2014-02-12 | 2015-08-20 | Swemac Innovation Ab | Targeting device and method |
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2017
- 2017-11-20 CN CN201711157987.8A patent/CN107595378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2662844Y (en) * | 2003-08-27 | 2004-12-15 | 王庆贤 | Improved femoral intramedullary nail aiming instrument |
| WO2011006413A1 (en) * | 2009-07-14 | 2011-01-20 | 常州市康辉医疗器械有限公司 | Intramedullary nail fixing device for proximal femoral fracture |
| CN201847767U (en) * | 2010-10-28 | 2011-06-01 | 常州康鼎医疗器械有限公司 | Far-end aiming device for lengthened intramedullary nail |
| WO2015122807A1 (en) * | 2014-02-12 | 2015-08-20 | Swemac Innovation Ab | Targeting device and method |
| CN104688322A (en) * | 2015-03-11 | 2015-06-10 | 北京德康健医药科技有限公司 | Positioning device for distal locking of intramedullary nail |
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Effective date of registration: 20240509 Address after: No. 35 Xingsheng Road, Jinfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215600 Patentee after: SUZHOU SUNAN ZIMMERED MEDICAL INSTRUMENT Co.,Ltd. Country or region after: China Address before: 450000 No.27, building 4, courtyard 78, Zhongyuan East Road, Erqi District, Zhengzhou City, Henan Province Patentee before: Chen Juwu Country or region before: China |
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