CN111134817B - A bone transport device based on intramedullary nail system - Google Patents
A bone transport device based on intramedullary nail system Download PDFInfo
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- CN111134817B CN111134817B CN202010114264.5A CN202010114264A CN111134817B CN 111134817 B CN111134817 B CN 111134817B CN 202010114264 A CN202010114264 A CN 202010114264A CN 111134817 B CN111134817 B CN 111134817B
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- nail
- bone
- rope lock
- intramedullary nail
- retractor
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 85
- 230000007547 defect Effects 0.000 claims abstract description 20
- 238000004804 winding Methods 0.000 claims description 11
- 230000002427 irreversible effect Effects 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 206010031252 Osteomyelitis Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 208000018084 Bone neoplasm Diseases 0.000 description 1
- 208000024779 Comminuted Fractures Diseases 0.000 description 1
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010061619 Deformity Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 206010052904 Musculoskeletal stiffness Diseases 0.000 description 1
- 206010061304 Nail infection Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000003275 diaphysis Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 201000000585 muscular atrophy Diseases 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary devices, e.g. pins or nails
- A61B17/7216—Intramedullary devices, e.g. pins or nails for bone lengthening or compression
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (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 bone moving device based on the intramedullary nail system comprises an intramedullary nail, a main traction rope lock and a traction rope lock, wherein the intramedullary nail provides stable support for the limb of the bone defect, the main traction rope lock passes through the nail hole of the intramedullary nail or is fixed in the far end or near end normal bone of the bone defect through the side of the intramedullary nail, a slideway for the traction rope lock to move is arranged in the axial direction of the main traction rope lock, the head end of the traction rope lock is fixed on the traction rope of the main traction rope nail, the tail end of the traction rope lock is fixedly connected to the active bone block of the osteotomy through a drill after extending through a slideway, and the traction rope lock is driven by a mobile traction device to drive the active bone block of the osteotomy to move.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a bone moving device based on an intramedullary nail system.
Background
The defects of long bones of limbs are commonly caused by severe open comminuted fracture, postoperative infection of fracture, massive bone removal of osteomyelitis and bone tumor operation, and are often accompanied by limb shortening, deformity, osteomyelitis, muscular atrophy and stiffness of adjacent joints, which are one of the most troublesome problems in the orthopedics field.
Bone transport technology (bone transport) is an original method of treating bone defects by illizaloff physicians in the 70 th century, and is gradually used in clinic after the 80 th year, and is called one of the "twenty-century orthopedics three milestone technologies".
The existing bone moving technology provides stable support for the limb of the bone defect through an external fixator or an extension system combined with the inside and outside of an intramedullary nail and the external fixator, then cuts off the normal bone at the upper end or the lower end of the diaphysis of the bone defect, and moves the bone block with bioactivity after cutting the bone at a speed of 1mm per day by means of the fixation of a movable steel needle of the external fixator, so that the bone block gradually leans against the broken end of the corresponding bone defect, and further the bone defect is repaired.
The existing external fixing support is heavy in design and inconvenient to care after operation, and especially a plurality of steel needles are used for fixing the far and near ends of bone defects through skin, so that serious complications such as nail infection, joint stiffness and the like are easy to occur. The early stage of bone movement causes local nerve stimulation due to the traction of the Kirschner wire or the half nail, and the edema is not resolved at the early stage of bone movement, the local tension is larger, and the bone segment is moved, so that the nerve is excessively pulled and the local compression is caused in a high tension environment, and in the case of larger bone defects, the Kirschner wire or the half nail cuts the skin during the movement, so that the patient can feel serious pain in the early stage or the long-term bone movement process, and even the patient actively requires to abandon the treatment due to intolerable pain.
Disclosure of Invention
The invention aims to provide a bone moving device based on an intramedullary nail system, which is used for solving the problems in the background technology.
The technical scheme includes that the bone osteotomy device comprises an intramedullary nail, a main traction rope lock and a traction rope lock, wherein the main traction rope lock penetrates through a nail hole of the intramedullary nail or is fixed in a distal end or a proximal end of a bone defect through the side of the intramedullary nail, a slideway for the traction rope lock to move is arranged in the axial direction of the main traction rope lock, the head end of the traction rope lock is fixed on the traction rope of the main traction rope lock, the tail end of the traction rope lock is fixedly connected to an osteotomy active bone block through a drill after extending through the slideway, and the traction rope lock is moved to drive the traction rope lock to pull the osteotomy active bone block to move.
The working principle of the invention is as follows:
The device uses the unidirectional winding principle of the traction device on the traction device main nail, and the traction rope lock is used for traction the truncated active bone blocks, so that bone effect is generated between the active bone blocks and the original normal bone tissues, and the clinical purpose of bone movement and bone defect treatment is achieved.
The distal end and the proximal end of the bone defect are fixed by adopting an intramedullary nail system, a main traction device nail passes through a nail hole of the intramedullary nail or is fixed in the distal end or the proximal end of the bone defect through the side of the intramedullary nail, a slideway for the traction rope lock to move is arranged in the axial direction of the main traction device nail, the head end of the traction rope lock is fixed on the traction device of the main traction device nail, the tail end of the traction rope lock is fixedly connected on an active bone block of the osteotomy through drilling binding, and the traction device is moved to drive the traction rope lock to pull the active bone block of the osteotomy to move. The soft tissue is prevented from being stimulated by the traction rope lock in the whole traction and osteogenesis process, and the simplification and painless of the bone moving technology can be effectively realized.
The invention has the beneficial effects that:
1. The device combines the intramedullary nail and the bone traction device, maintains the stability of osteotomy, does not need to wear a heavy external fixing bracket in the bone moving process, and can systematically perform rehabilitation training for patients in the bone moving process, thereby realizing a simple, effective and painless bone moving technology.
2. The invention further improves the overall stability of the device, and is provided with the anti-rotation nail and the anti-rotation nail fixing device, the anti-rotation nail and the anti-rotation nail fixing device can prevent the main nail of the traction device from rotating in the traction process, and the universal joint with the locking function can change the angle of the anti-rotation nail placed into the bone of a patient according to actual needs, so that the anti-rotation nail traction device has practicability.
3. After the adjusting screw rod rotates for a certain angle, the traction rope lock can drive the osteotomy active bone block to move, the traction rope lock can be wound in the spiral winding groove, and the moving distance and speed of the active bone block can be accurately adjusted and controlled through the scale adjusting disc arranged at the head end of the traction sleeve.
Drawings
Fig. 1 is a schematic connection of a retractor staple, a retractor cord lock, and an anti-rotation staple fastening device.
Fig. 2 is a cross-sectional view of the connection of the retractor staple, the retractor cord lock, and the anti-rotation staple fastening device.
Fig. 3 is an enlarged partial cross-sectional view of the connection of the retractor staple, the retractor cord lock, and the anti-rotation staple fastening device.
Fig. 4 is a cross-sectional view of the connection of the retractor staple and the anti-rotation staple fastening device.
Fig. 5 is a schematic structural view of the adjusting lever.
Fig. 6 is an enlarged partial schematic view at a in fig. 4.
Fig. 7 is a cross-sectional view of the connection of the pin body and the pulling sleeve.
Fig. 8 is a cross-sectional view of the anti-rotation nail fixing device.
Fig. 9 is a schematic illustration of the cooperation of the scale adjustment plate and the reference indicator.
Fig. 10 is a perspective view of the anti-rotation nail fixing device.
Fig. 11 is a schematic structural view of the anti-rotation nail fixing device.
Fig. 12 is a cross-sectional view at B-B in fig. 11.
Fig. 13 is a cross-sectional view of the present invention.
Fig. 14 is a schematic view of the structure of the present invention.
Fig. 15 is a schematic view of the present invention installed in a bone defect of a long bone.
Detailed Description
Referring to fig. 1 to 14, a bone moving device based on an intramedullary nail system includes an intramedullary nail 1, a main traction device nail 2 and a traction rope lock 3, the main traction device nail 2 passes through a nail hole of the intramedullary nail or is fixed in a far end or near end normal bone of a bone defect through the side of the intramedullary nail, a slideway 25 for moving the traction rope lock 3 is arranged in the axial direction of the main traction device nail 2, the head end of the traction rope lock 3 is fixed on a traction device of the main traction device nail 2, the tail end of the traction rope lock 3 is fixedly connected to an active bone block of an osteotomy through a drill after being extended by the slideway 25, and the traction rope lock 3 is driven by the mobile traction device to move the active bone block of the osteotomy.
Furthermore, the main retractor nail 2 comprises a nail body 20, an adjusting rod 21 and a retractor sleeve 22, wherein a slideway 25 is arranged in the nail body 20, the head end of the retractor rope lock 3 is fixedly connected to the adjusting rod 21, the adjusting rod 21 and the retractor sleeve 22 are matched to do irreversible movement along the axial direction of the retractor sleeve 22, and the irreversible movement along the single direction means that the adjusting rod 21 always moves forwards along the axial direction of the retractor sleeve 22 and cannot retract, or always moves backwards along the axial direction of the retractor sleeve 22 and cannot advance.
Furthermore, the adjusting rod 21 is an adjusting screw, and the inner cavity of the pulling sleeve 22 is provided with an internal thread 220 matched with the adjusting screw.
Furthermore, the inner cavity of the tail end of the traction sleeve 22 is fixedly connected with a linear bearing 24, the inner cavity of the linear bearing 24 is axially and slidably connected with a one-way bearing 23, and the tail end of the adjusting screw is fixedly connected with an inner ring of the one-way bearing 23.
Still further, the bone traction device further comprises an anti-rotation nail 5 and an anti-rotation nail fixing device 4, the head end of the anti-rotation nail fixing device 4 is fixedly connected to the tail end of the traction sleeve 22, and the anti-rotation nail 5 is fixed into the nail hole of the intramedullary nail 1 or fixed into normal bone through the side of the intramedullary nail through the anti-rotation nail fixing device 4.
Further, the anti-rotation nail fixing device 4 includes a universal joint 40 with a locking function and an anti-rotation nail clamp 41, the tail end of the universal joint 40 with the locking function is fixedly connected with the tail end of the traction sleeve 22, and the adjusting end of the universal joint 40 with the locking function is fixedly connected with the head end of the anti-rotation nail clamp 41.
Furthermore, the universal joint 40 with locking function is a rod-shaped ball-end rod-end joint bearing with locking function, which consists of a rod-shaped ball 400 and a shell 401 for the ball to rotate, wherein 3 adjustable studs 402,3 adjustable studs 402 are uniformly arranged in the radial direction of the shell 401 to lock the rod-shaped ball 400 in a locking state.
Furthermore, the anti-rotation nail clamp 41 comprises a clamp base 410 and a clamp arm 411, the clamp arm 411 is hinged to the tail end of the clamp base 410 through a hinge, the clamp base 410 is connected with the clamp arm 411 through a detachable locking bolt, and a clamping groove for clamping the anti-rotation nail 5 is formed between the clamp base 410 and the clamp arm 411.
Further, the adjusting rod 21 includes a winding area 210 and a pulling area 211, and spiral winding grooves 212 extending along the axial direction of the adjusting rod 21 are uniformly formed on the outer surface of the winding area 210, and the width of the spiral winding grooves 212 is equal to the diameter of the pulling rope lock 3.
Furthermore, the pulling rope lock 3 is a titanium cable, the pulling rope lock 3 is provided with a clamping block 30, and the tail end of the pulling rope lock 3 is fixed on the pulling rope lock 3 through the clamping block 30 after being wound around the osteotomy.
Furthermore, the head end of the pulling sleeve 22 is provided with a scale adjusting disc 222, and the head end of the adjusting bolt is provided with a reference indicator 221.
The working principle and the using process of the embodiment are as follows:
When in use, the intramedullary nail 1 is fixed in the bone cavity of a patient, the far and near ends of the bone defect are fixed at the center, the main traction device nail 2 passes through the nail hole of the intramedullary nail or is fixed in the far end or near end normal bone of the bone defect through the side of the intramedullary nail, the far end or near end of the bone defect is drilled by a Kirschner wire, the tail end of the traction rope lock 3 is wound on a bone segment to be cut, the fixing mode can be locked by using the U-shaped clamp block 30 or can be locked by adopting other clamping mechanisms, then the bone segment fixed at the tail end of the traction rope lock 3 is cut at the metaphyseal end, and the bone segment to be moved is free into an active bone block. In order to further improve the overall stability of the device, the anti-rotation nail 5 and the anti-rotation nail fixing device 4 have the functions of assisting in fixing the main traction nail 2, preventing the main traction nail 2 from rotating in the traction process, and the universal joint 40 with the locking function can change the angle of the anti-rotation nail 5 placed into the bone of a patient according to actual needs, so that the anti-rotation nail fixing device has practicability.
After the adjusting screw rod rotates on the retractor by a certain angle, the adjusting screw rod moves along the axial direction of the traction sleeve 22, the unidirectional bearing 23 arranged at the rear end of the adjusting screw rod can ensure that the adjusting screw rod does unidirectional irreversible movement, the linear bearing 24 can ensure that the unidirectional bearing 23 and the adjusting screw rod only slide along the axial direction, the distance of the axial movement of the unidirectional bearing 23 relative to the linear bearing 24 is equal to the distance of the adjusting screw rod relative to the traction sleeve 22, it is required that the unidirectional bearing 23 can only do axial movement in the linear bearing 24 and cannot do radial rotation movement, which is defined by the self structure of the linear bearing 24, the linear bearing 24 is in the prior art, after the adjusting screw rod rotates by a certain angle, the traction rope lock 3 can drive the osteotomy active bone block to move, and the traction rope lock 3 can be wound in the spiral winding groove 212. The distance and speed of the moving of the active bone pieces are precisely regulated by a scale regulating disc 222 arranged at the head end of the traction sleeve 22.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010114264.5A CN111134817B (en) | 2020-02-25 | 2020-02-25 | A bone transport device based on intramedullary nail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010114264.5A CN111134817B (en) | 2020-02-25 | 2020-02-25 | A bone transport device based on intramedullary nail system |
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| Publication Number | Publication Date |
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| CN111134817A CN111134817A (en) | 2020-05-12 |
| CN111134817B true CN111134817B (en) | 2025-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010114264.5A Active CN111134817B (en) | 2020-02-25 | 2020-02-25 | A bone transport device based on intramedullary nail system |
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| CN (1) | CN111134817B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839711B (en) * | 2020-08-19 | 2025-03-11 | 吴丹凯 | A gun-type lifting forceps capable of effectively pressurizing the fracture ends |
| CN220089617U (en) * | 2023-03-29 | 2023-11-28 | 孙建民 | Intramedullary guiding device |
| CN120114159B (en) * | 2025-03-19 | 2025-11-04 | 中国人民解放军联勤保障部队第九二〇医院 | Pull-type bone moving system of titanium cable pulley track in sleeve-mediated body without outer frame |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205597995U (en) * | 2015-12-14 | 2016-09-28 | 重庆医科大学附属永川医院 | Be used for damaged bone handling device of big section bone of osteoporosis patient's thighbone |
| CN108498149A (en) * | 2018-07-13 | 2018-09-07 | 任广凯 | A kind of titanium cable drawing bone Filtting device and its application method |
| CN211610018U (en) * | 2020-02-25 | 2020-10-02 | 吴丹凯 | A Bone Transfer Device Based on Intramedullary Nail System |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8901908U1 (en) * | 1989-02-15 | 1989-03-30 | Mecron Medizinische Produkte Gmbh, 1000 Berlin | Orthopaedic fixation device |
| US5626579A (en) * | 1993-02-12 | 1997-05-06 | The Cleveland Clinic Foundation | Bone transport and lengthening system |
| US5429638A (en) * | 1993-02-12 | 1995-07-04 | The Cleveland Clinic Foundation | Bone transport and lengthening system |
| CN101543425A (en) * | 2009-02-18 | 2009-09-30 | 曹莹莹 | Anti-rotary automatic-lock intramedullary nail of primary-secondary type |
| AU2010289288B2 (en) * | 2009-09-04 | 2015-11-26 | Nuvasive Specialized Orthopedics, Inc. | Bone growth device and method |
| DE202010012927U1 (en) * | 2010-11-18 | 2011-01-20 | Matveev, Anatoly L. | Apparatus for the endoprosthesis of the hip joint with replacement of the joint surfaces and for the operative prophylaxis of thigh fractures in the proximal region in osteoporosis |
| US10299847B2 (en) * | 2016-09-22 | 2019-05-28 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| CN109157276A (en) * | 2018-09-26 | 2019-01-08 | 深圳市龙华区中心医院 | It is a kind of to digitize controllable constant force bone Filtting device |
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2020
- 2020-02-25 CN CN202010114264.5A patent/CN111134817B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205597995U (en) * | 2015-12-14 | 2016-09-28 | 重庆医科大学附属永川医院 | Be used for damaged bone handling device of big section bone of osteoporosis patient's thighbone |
| CN108498149A (en) * | 2018-07-13 | 2018-09-07 | 任广凯 | A kind of titanium cable drawing bone Filtting device and its application method |
| CN211610018U (en) * | 2020-02-25 | 2020-10-02 | 吴丹凯 | A Bone Transfer Device Based on Intramedullary Nail System |
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| CN111134817A (en) | 2020-05-12 |
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