CN108272499B - Far-end locking sighting device of light-permeable intramedullary nail - Google Patents
Far-end locking sighting device of light-permeable intramedullary nail Download PDFInfo
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- CN108272499B CN108272499B CN201711488024.6A CN201711488024A CN108272499B CN 108272499 B CN108272499 B CN 108272499B CN 201711488024 A CN201711488024 A CN 201711488024A CN 108272499 B CN108272499 B CN 108272499B
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- 239000002184 metal Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000012780 transparent material Substances 0.000 claims description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000008733 trauma Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- 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
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a medical instrument in the field of orthopaedics trauma, in particular to intramedullary fixation of fracture, and especially relates to a light-permeable intramedullary nail distal locking nail sighting device. Comprises a handle, a proximal connecting guide rod, a distal adjusting mechanism and a distal aiming bracket; one end of the handle is fixedly connected with the intramedullary nail through a bolt, the handle and the proximal connecting guide rod are positioned through two pin holes and a pin, and then are connected through a second connecting bolt in a threaded manner; the far-end adjusting mechanism is formed by assembling a connecting guide rod and a far-end connecting guide rod, and one end of the connecting guide rod is provided with a specification positioning device and a guiding device; one end of the distal connecting guide rod is provided with a positioning hole of the distal aiming bracket, the other end of the distal connecting guide rod is embedded and fixed with a metal insert, and the distal connecting guide rod is assembled with the connecting guide rod in a combined way through a pin and a fixing screw, so that the distal connecting guide rod can rotate around the pin. One end of the metal insert is provided with a transmission tooth with a modulus matched with that of the screw rod; the far-end aiming bracket is positioned with the far-end connecting guide rod through two pin holes and a pin, and is fixed by a first connecting bolt.
Description
Technical Field
The invention relates to a medical instrument in the field of orthopaedics trauma, in particular to intramedullary fixation of fracture, and especially relates to a light-permeable intramedullary nail distal locking nail sighting device.
Background
Currently, intramedullary nail fixation surgery is often used in the treatment of tubular bone fractures of the femur, tibia, etc. Normally, when a longer intramedullary nail is implanted, the intramedullary nail is undesirably deformed inside the medullary cavity of a patient due to the difference in the physiological radian of the medullary cavity of the human body and the existence of the isthmus, and thus, a problem of aiming the distal locking nail is generated. In performing distal locking, it is necessary to use a corresponding distal aiming device, which requires very high aiming accuracy.
The aiming techniques commonly used at present are as follows: mechanical positioning compression bar aiming technology, magnetic navigation positioning aiming technology and far-end freehand technology. The mechanical positioning compression bar technology is a common general technology in China at present, but the success rate of the aiming mode is very low, and the problem of aiming failure often occurs; although the magnetic navigation positioning aiming technology is accurate in positioning, the problem of response delay can also occur in the operation process, thereby leading to aiming failure, and more importantly, the cost is too high; the bare-handed sighting technology has a surgical success rate reaching a hundred percent, but has higher surgical technical requirements on doctors, and can bring serious harm to the physiology of the doctors and patients after being put in an X-ray environment for a long time.
Disclosure of Invention
The invention aims at: provides a light-permeable intramedullary nail distal locking sighting device, which is a safe, effective, economical and applicable intramedullary nail distal sighting device.
In order to achieve the aim of the invention, the invention adopts the following scheme:
a far-end locking nail sighting device of a light-permeable intramedullary nail comprises a handle, a near-end connecting guide rod, a far-end adjusting mechanism and a far-end sighting frame.
One end of the handle is fixedly connected with the intramedullary nail by adopting a bolt. The handle and the proximal connecting guide rod are positioned through two pin holes and pins, and are in threaded connection through a second connecting bolt. The proximal connecting guide rod is provided with a chute (groove), and a plurality of ball holes are arranged at the bottom of the chute (groove) for selecting different intramedullary nail specifications.
The remote adjusting mechanism is assembled by a connecting guide rod and a remote connecting guide rod. One end of the connecting guide rod is provided with a specification positioning device and a guide device, the guide device consists of a guide screw and a nut, the guide screw is inserted into the chute of the proximal connecting guide rod and screwed by the nut, so that the sliding capacity of the connecting guide rod is realized; the specification positioning device consists of a positioning seat, a first pin, a second pin, a ball head positioning pin and a spring, wherein the positioning seat and the first pin are fixed at one end of a connecting guide rod through the second pin, the ball head positioning pin and the spring are assembled in the base in a combined mode, the specification positioning device is arranged in a sliding groove of the proximal connecting guide rod, and when the ball head positioning pin is in contact with a ball hole at the bottom of the sliding groove, one positioning is formed to perform specification selection.
The other end of the connecting guide rod is provided with an open slot, one end of the open slot is provided with a cylindrical cavity, and a screw device is arranged in the cavity. The screw device consists of a screw and a fixing screw and is assembled in the cylindrical cavity. Two straight holes with higher coaxiality are arranged on the end face perpendicular to the opening direction of the opening groove of the connecting guide rod.
One end of the distal connecting guide rod is provided with a positioning hole of the distal aiming bracket, the other end of the distal connecting guide rod is embedded and fixed with a metal insert, and the distal connecting guide rod is assembled with the connecting guide rod in a combined way through a pin and a fixing screw, so that the distal connecting guide rod can rotate around the pin.
One end of the metal insert is provided with a transmission tooth with a modulus matched with that of the screw, and when the screw is rotated, the screw power can be rotated to the metal insert to be led to the far-end connection guide rod to rotate. The far-end aiming bracket is positioned with the far-end connecting guide rod through two pin holes and a pin, and is fixed by a first connecting bolt, and a plurality of aiming holes are formed in the far-end aiming bracket. Under the condition of X-ray perspective, the distal connecting guide rod is adjusted, the distal connecting guide rod is guided to an aiming hole on the distal aiming bracket to a correct position, and finally distal locking is performed.
The handle is a bending piece, one end of the handle is fixed with the intramedullary nail through a bolt, the other end of the handle is positioned with the proximal connecting guide rod through two pin holes, and the handle is fixed through a connecting bolt II. The connecting rod is characterized in that a sliding groove is formed in the rod portion of the proximal connecting rod, the connecting rod is assembled with a connecting rod with an open groove at one end through a connecting piece, and the connecting rod has sliding capacity relative to the proximal connecting rod. The slotted end of the connecting guide rod is connected with the far-end connecting guide rod through a pin shaft, the far-end connecting guide rod can rotate around the pin shaft, and a screw rod is arranged at the other end of the open slot.
One end of the far-end connecting guide rod is provided with a positioning hole, the other end of the far-end connecting guide rod is provided with a metal insert, the end part of the metal insert is provided with transmission teeth, and the metal insert and a screw rod in the connecting guide rod form a worm and gear structure to provide a power device. The distal aiming bracket and the distal connecting guide rod are positioned through two pin holes and then fixed by connecting bolts, and the distal aiming bracket is provided with a plurality of aiming holes for aiming the distal locking nail holes of the intramedullary nail.
In order to achieve the X-ray perspective effect, the handle is a metal piece, and the other proximal connecting guide rod, the distal connecting guide rod and the distal aiming bracket are all made of light-permeable materials, such as carbon fiber and other light-permeable materials with higher hardness.
The proximal end connecting guide rod part is designed as a chute, and a plurality of ball holes can be formed in the bottom of the chute, so that the intramedullary nail selecting device is suitable for intramedullary nails of different specifications.
One end of the connecting guide rod is embedded with an intramedullary nail specification selecting device and a fixing device, the other end of the connecting guide rod is provided with a groove, the end part of the groove is provided with a cylindrical cavity, a screw rod is arranged in the cavity, and two straight holes with higher coaxiality are arranged in the vertical direction of the opening end of the groove.
One point of the far-end connecting guide rod comprises a metal insert, one end of the insert is of a tooth-shaped structure, one end of the insert is provided with a straight hole, the straight hole is overlapped with the two straight holes of the connecting guide rod and is fixed by a pin shaft, so that the far-end connecting guide rod rotates around the pin shaft, the far-end aiming bracket connected with the far end is driven to rotate, a proper aiming position is found,
the metal insert and the screw rod in the connecting guide rod form a worm and gear structure to provide a power device. The tooth-shaped inserts of the far-end connecting guide rod are meshed with the screw rods at the grooves of the connecting guide rod, and power is transmitted to the inserts through rotating the screw rods, so that the far-end connecting guide rod rotates around the pin shafts, and the position adjustment of the far-end aiming bracket is achieved.
The invention provides a light-permeable intramedullary nail distal locking sighting device
Compared with the mechanical positioning compression bar aiming technology, the invention removes the step of pressing down and positioning, reduces the trauma caused by the operation incision, simplifies the operation step, and improves the aiming precision and reduces the operation time compared with the mechanical positioning due to the light transmittance of the material of the invention; compared with the magnetic navigation technology, the cost of the light-permeable material adopted by the invention is greatly reduced relative to the magnetic navigation on the premise of reaching the same aiming precision due to the injection molding process; compared with freehand aiming technology, the invention has less requirements for doctors, so that more doctors can perfect related operations.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic view of a light-permeable intramedullary nail distal lock nail sight;
FIG. 2 is a schematic view of a proximal connecting guide rod of a distal lock pin sight of a light-permeable intramedullary nail;
FIG. 3 is a schematic view of a distal adjustment mechanism for a light permeable intramedullary nail distal lock target;
FIG. 4 is a cross-sectional view of a proximal connecting guide A-A of the distal lock-pin sight of the light-permeable intramedullary nail of FIG. 2;
FIG. 5 is a cross-sectional view of a distal adjustment mechanism B-B of the distal lock-pin sight of the light permeable intramedullary nail of FIG. 3;
FIG. 6 is an enlarged schematic view of the worm gear power structure of a light permeable intramedullary nail distal lock target;
FIG. 7 is an enlarged schematic view of a gauge setting device of a light transmissive intramedullary nail distal lock target.
The labels in the figures are illustrated below: 1. an intramedullary nail; 2. a handle; 3. the proximal end is connected with a guide rod; 3-1, a chute; 3-2, ball holes; 4. connecting a guide rod; 4-1, a specification positioning device; 4-11, positioning seats; 4-12, pin one; 4-13, pin II; 4-14, ball head locating pins; 4-15, springs; 4-2, a guiding device; 4-21, a guide screw; 4-22, screw cap; 4-3, a screw device; 4-31, screw rod; 4-32, fixing screws; 4-4, an open slot; 4-41, a cylindrical cavity; 5. the distal end is connected with a guide rod; 5-1, a metal insert; 5-11, driving teeth; 5-2, positioning holes; 5-21, pins; 5-22, fixing screws; 6. a first connecting bolt; 7. a distal aiming block; 7-1, aiming holes; 8. and a second connecting bolt.
Detailed Description
Referring to fig. 1-7, a light-permeable intramedullary nail distal locking and aiming device comprises an intramedullary nail 1, a handle 2, a proximal connecting guide rod 3, a distal adjusting mechanism and a distal aiming bracket 7.
The handle 2 is a bending piece. The intramedullary nail 1 and the handle 2 are metal parts, and the other proximal connecting guide rod 3, the connecting guide rod 4, the distal connecting guide rod 5 and the distal aiming bracket 7 are made of X-ray transparent materials, such as carbon fiber and other transparent materials with higher hardness. One end of the handle 2 is fixedly connected with the intramedullary nail 1 by adopting a bolt. The handle 2 and the proximal connecting guide rod 3 are positioned through two pin holes and are in threaded connection through a connecting bolt II 8. The proximal connecting guide rod 3 is provided with a chute (groove) 3-1, the design of which is shown in fig. 2 and 4, and the bottom of the chute (groove) is provided with a plurality of ball holes which are mainly used for selecting different intramedullary nail specifications.
The distal end adjusting mechanism is as shown in fig. 1, 3 and 5, and is assembled by the connecting guide rod 4 and the distal end connecting guide rod 5. One end of the connecting guide rod 4 is provided with a specification positioning device 4-1 and a guiding device 4-2, the guiding device consists of a guiding screw 4-21 and a nut 4-22, the guiding screw 4-21 is inserted into a chute of the proximal connecting guide rod, and the nut 4-22 is screwed tightly, so that the connecting guide rod has sliding capability; the specification positioning device 4-2 is shown in fig. 6, and consists of a positioning seat 4-11, a first pin 4-12, a second pin 4-13, a ball head positioning pin 4-14 and a spring 4-15, wherein the positioning seat 4-11 and the first pin 4-12 are fixed at one end of the connecting guide rod 4 through the second pin 4-13, the ball head positioning pin 4-14 and the spring 4-15 are assembled in the base in a combined way, the specification positioning device 4-1 is arranged in a chute of the proximal connecting guide rod 3, and when the ball head positioning pin 4-14 contacts with a chute bottom ball hole 3-2, a positioning is formed, and the specification is selected.
The other end of the connecting guide rod 4 is provided with an open slot 4-4, one end of the open slot 4-4 is provided with a cylindrical cavity 4-41, and a screw device 4-3 is arranged in the cavity. The screw device 4-3 consists of a screw 4-31 and a fixing screw 4-32, and is assembled in the cylindrical cavity 4-41; the surface of the open end of the open groove 4-4 perpendicular to the groove is provided with two straight holes with higher coaxiality.
One end of the distal connecting guide rod 5 is provided with a positioning hole 5-2 of the distal aiming bracket 7, the other end is embedded and fixed with a metal insert 5-1, and the distal connecting guide rod 5 is assembled with the connecting guide rod 4 through a pin 5-21 and a fixing screw 5-22 in a combined way, so that the distal connecting guide rod can rotate around the pin 5-21.
One end of the metal insert 5-1 is provided with a transmission tooth 5-11 with the modulus matched with that of the screw 4-31, and when the screw 4-31 is rotated, the screw power can be rotated to the metal insert 5-1 to be led to the far-end connecting guide rod 5 to rotate. The far-end aiming bracket 7 is positioned with the far-end connecting guide rod 5 through two pin holes and pins and then is fixed by the connecting bolt I6, and a plurality of aiming holes 7-1 are arranged on the far-end aiming bracket 7. The far-end aiming bracket is provided with aiming holes corresponding to the far-end locking holes of the intramedullary nail. Under the condition of X-ray perspective, the distal connecting guide rod 5 is adjusted to guide the aiming hole on the distal aiming bracket 7 to the correct position, and finally distal locking is performed.
The proximal connecting guide rod 3 is provided with a chute 3-1, a plurality of ball holes 3-2 are arranged at the bottom of the chute 3-1, and the proximal connecting guide rod is used for selecting and fixing different intramedullary nail specifications through a positioning device and a guiding device.
One end of the far-end connecting guide rod 5 is provided with a positioning hole 5-2, the other end of the far-end connecting guide rod is provided with a metal insert 5-1, the end part of the metal insert 5-1 is provided with a transmission tooth 5-11, and the metal insert 5-1 and a screw rod 4-31 in the connecting guide rod form a worm and gear structure to provide power to complete power driving. The distal aiming bracket and the distal connecting guide rod are positioned through two pin holes and then fixed by connecting bolts, and the distal aiming bracket is provided with a plurality of aiming holes for aiming the distal locking nail holes of the intramedullary nail.
The specific operation steps are as follows: the first step, connecting an intramedullary nail 1 to one end of a handle 2 through a bolt; secondly, fixing the proximal connecting guide rod 3 at the other end of the handle 2 by a first connecting bolt 8; thirdly, inserting a positioning device 4-1 and a guiding device 4-2 on a connecting guide rod 4 in the connected far-end adjusting mechanism along a chute of a near-end connecting guide rod 3, and sliding the far-end adjusting device to a corresponding position according to the specification of the intramedullary nail 1; fourthly, fixing a far-end aiming bracket 7 at the far end of a far-end connecting rod 5 by a first connecting bolt 6, and inserting a metal protective sleeve into the aiming hole; and fifthly, rotating the screw 4-31 by using a spanner to adjust the position of the aiming hole of the far-end aiming bracket, so that the aiming hole corresponds to the far-end locking nail hole of the intramedullary nail, and locking the far-end locking nail after the accurate position is adjusted under X-rays because the metal sleeve forms a developing circle.
The above embodiments are only for explaining the present invention, but are not limited thereto. Obvious variations that are extended by the invention are still within the scope of the invention.
Claims (5)
1. A light-permeable intramedullary nail distal locking nail sighting device, which is characterized in that: comprises a handle, a proximal connecting guide rod, a distal adjusting mechanism and a distal aiming bracket;
one end of the handle is fixedly connected with the intramedullary nail through a bolt, the handle and the proximal connecting guide rod are positioned through two pin holes and pins, and then are in threaded connection through a connecting bolt II; the proximal connecting guide rod is provided with a chute, and the bottom of the chute is provided with a plurality of ball holes for selecting different intramedullary nail specifications;
the remote adjusting mechanism is formed by assembling a connecting guide rod and a remote connecting guide rod, and one end of the connecting guide rod is provided with a specification positioning device and a guiding device; the guide device consists of a guide screw and a nut, wherein the guide screw is inserted into the chute of the proximal connecting guide rod and screwed by the nut, so that the guide device has sliding capability; the specification positioning device consists of a positioning seat, a first pin, a second pin, a ball head positioning pin and a spring, wherein the positioning seat and the first pin are fixed at one end of a connecting guide rod through the second pin, the ball head positioning pin and the spring are assembled in the base in a combined manner, the specification positioning device is arranged in a chute of the proximal connecting guide rod, and when the ball head positioning pin is contacted with a ball hole at the bottom of the chute, a positioning is formed for specification selection;
the other end of the connecting guide rod is provided with an open slot, one end of the open slot is provided with a cylindrical cavity, and a screw device is arranged in the cavity; the screw device consists of a screw and a fixing screw and is assembled in the cylindrical cavity;
one end of the distal connecting guide rod is provided with a positioning hole of the distal aiming bracket, the other end of the distal connecting guide rod is embedded and fixed with a metal insert, and the distal connecting guide rod is assembled with the connecting guide rod in a combined way through a pin and a fixing screw so that the distal connecting guide rod can rotate around the pin;
one end of the metal insert is provided with a transmission tooth with a modulus matched with that of the screw, when the screw is rotated, the screw power can be rotated to the metal insert, and the screw is led to the far-end connecting guide rod to rotate; the far-end aiming bracket is positioned with a far-end connecting guide rod through two pin holes and a pin, and is fixed by a first connecting bolt;
the far-end aiming bracket is provided with a plurality of aiming holes, the far-end connecting guide rod is adjusted under the condition of X-ray perspective, the far-end connecting guide rod is guided to the aiming holes on the far-end aiming bracket to the correct positions, and finally, the far-end locking nails are locked;
the intramedullary nail and the handle are metal pieces, and the other proximal connecting guide rod, the distal connecting guide rod and the distal aiming bracket are made of X-ray transparent materials.
2. The light permeable intramedullary nail distal lock nail sight of claim 1, wherein: the far-end aiming bracket is provided with aiming holes corresponding to the far-end locking holes of the intramedullary nail.
3. The light permeable intramedullary nail distal lock nail sight of claim 1, wherein: the open end of the open slot arranged at the other end of the connecting guide rod is perpendicular to the slot and is provided with two straight holes with higher coaxiality.
4. The light permeable intramedullary nail distal lock nail sight of claim 1, wherein: the proximal connecting guide rod is provided with a chute, a plurality of ball holes are arranged at the bottom of the chute, and the proximal connecting guide rod is used for selecting and fixing different intramedullary nail specifications through the positioning device and the guiding device.
5. The light permeable intramedullary nail distal lock nail sight of claim 1, wherein: the remote end adjusting mechanism is characterized in that a positioning hole is formed in one end of a remote end connecting guide rod of the remote end adjusting mechanism, a metal insert is arranged at the other end of the remote end connecting guide rod, transmission teeth are arranged at the end part of the metal insert, and the metal insert and a screw rod in the connecting guide rod form a worm and gear structure to provide power for completing power driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711488024.6A CN108272499B (en) | 2017-12-29 | 2017-12-29 | Far-end locking sighting device of light-permeable intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711488024.6A CN108272499B (en) | 2017-12-29 | 2017-12-29 | Far-end locking sighting device of light-permeable intramedullary nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108272499A CN108272499A (en) | 2018-07-13 |
| CN108272499B true CN108272499B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711488024.6A Active CN108272499B (en) | 2017-12-29 | 2017-12-29 | Far-end locking sighting device of light-permeable intramedullary nail |
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| Country | Link |
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| CN (1) | CN108272499B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110693594A (en) * | 2019-11-07 | 2020-01-17 | 常州市康辉医疗器械有限公司 | Intramedullary nail sighting device |
| CN110693592A (en) * | 2019-11-07 | 2020-01-17 | 常州市康辉医疗器械有限公司 | Lateral support of intramedullary nail sighting device and intramedullary nail sighting device |
| CN113855208B (en) * | 2021-10-08 | 2024-04-16 | 四川省骨科医院 | Handle for installing femoral intramedullary nail |
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|---|---|---|---|---|
| CN2766797Y (en) * | 2005-02-02 | 2006-03-29 | 王鹏程 | Instrument for taking aim of shank intramedullary nail with lock |
| CN203328795U (en) * | 2013-07-13 | 2013-12-11 | 乔锋 | Intramedullary nail far-end lock hole collimation device |
| CN203328787U (en) * | 2013-07-13 | 2013-12-11 | 乔锋 | Intramedullary nail far end lock hole collimation device |
| CN208339587U (en) * | 2017-12-29 | 2019-01-08 | 常州市康辉医疗器械有限公司 | A kind of light-permeable intra medullary nail far-end lock pin sighting device |
-
2017
- 2017-12-29 CN CN201711488024.6A patent/CN108272499B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2766797Y (en) * | 2005-02-02 | 2006-03-29 | 王鹏程 | Instrument for taking aim of shank intramedullary nail with lock |
| CN203328795U (en) * | 2013-07-13 | 2013-12-11 | 乔锋 | Intramedullary nail far-end lock hole collimation device |
| CN203328787U (en) * | 2013-07-13 | 2013-12-11 | 乔锋 | Intramedullary nail far end lock hole collimation device |
| CN208339587U (en) * | 2017-12-29 | 2019-01-08 | 常州市康辉医疗器械有限公司 | A kind of light-permeable intra medullary nail far-end lock pin sighting device |
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| Publication number | Publication date |
|---|---|
| CN108272499A (en) | 2018-07-13 |
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