CN113069197B - Bone block lifting and fixing device and installation method - Google Patents
Bone block lifting and fixing device and installation method Download PDFInfo
- Publication number
- CN113069197B CN113069197B CN202110386774.2A CN202110386774A CN113069197B CN 113069197 B CN113069197 B CN 113069197B CN 202110386774 A CN202110386774 A CN 202110386774A CN 113069197 B CN113069197 B CN 113069197B
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- disc
- connecting rod
- hollow tube
- rod
- bone block
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title abstract description 7
- 238000009434 installation Methods 0.000 title abstract description 6
- 238000005553 drilling Methods 0.000 description 6
- 210000001185 bone marrow Anatomy 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 208000001132 Osteoporosis Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010012665 Diabetic gangrene Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010053206 Fracture displacement Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 201000002818 limb ischemia Diseases 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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, 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a bone block lifting and fixing device and an installation method, which effectively solve the problems that the existing screw at the present stage is insufficient in holding force and bone blocks are easy to move or cannot be pressurized well; the technical scheme that it solves includes a horizontal and axis left and right directions's hollow tube, be equipped with the external screw thread on the left outer disc of hollow tube, the right side of external screw thread is equipped with the limiting plate on the hollow tube, this has a polished rod that can control the removal in the hollow tube is coaxial, the coaxial first disc that is fixed with in left end portion of polished rod, the equipartition has a plurality of first connecting rods of articulating on first disc on the outer fringe face of first disc, the left side interval and the coaxial second disc that is equipped with of first disc, the articulated second connecting rod that has a plurality of and first connecting rod one-to-one on the outer disc of second, the free end of first connecting rod and corresponding second connecting rod articulates each other, be connected through the extension spring between first disc and the second disc.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a bone block lifting and fixing device and an installation method.
Background
For patients with severe osteoporosis and diseases such as diabetic gangrene or remote limb ischemic diseases or fracture displacement caused by external force, the fracture blocks need to be stably and effectively moved inwards and outwards, rotated, local reduction and pressurization are realized, a stable fixing mode is formed, the traditional fixing mode at the present stage is medical nail fixing, the traditional nail has insufficient holding force on bones of the patients, and bad results that the bone blocks cannot be moved or cannot be pressurized well appear, so that the treatment effect is influenced.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the bone block lifting and fixing device and the installation method, which effectively solve the problems that the existing screw holding force is insufficient at the present stage, and the bone block is easy to move or not pressurized well.
The technical scheme of the bone block lifting fixing device comprises a hollow pipe which is horizontal and has a left axis and a right axis, an external thread is arranged on the outer circular surface of the left side of the hollow pipe, a limiting disc is arranged on the right side of the external thread on the hollow pipe, a hexagonal prism is arranged on the outer circular surface of the right end part of the hollow pipe, a polish rod which can move left and right is coaxially arranged in the hollow pipe, a first disc is coaxially fixed on the left end part of the polish rod, a plurality of first connecting rods hinged to the first disc are uniformly distributed on the outer circular surface of the first disc, a second disc is coaxially arranged at intervals on the left side of the first disc, a plurality of second connecting rods which are in one-to-one correspondence with the first connecting rods are hinged to the outer circular surface of the second disc, the first connecting rods are hinged to the free ends of the corresponding second connecting rods, a cover body which can be rotatably arranged at the right end of the hollow pipe is arranged on the outer circular surface of the hollow pipe in a rotating mode, and when the cover body is rotatably arranged on the hollow pipe, the first disc stretches out of the left end of the hollow pipe, and the first connecting rods can be completely retracted to the first connecting rods and the second connecting rods are completely retracted to the right sides of the first disc.
The first connecting rod and the second connecting rod are uniformly distributed with a plurality of baffle plates perpendicular to the axis at intervals along the axis, and the baffle plates do not interfere with each other when the first connecting rod and the second connecting rod retract into the hollow tube.
The hollow tube is internally provided with a guide ring, and the polish rod penetrates through the guide ring and is limited by the guide ring.
The method for installing the bone block lifting and fixing device comprises the following steps:
Firstly, pre-drilling a bone block by using a 2.0mm Kirschner wire, directly drilling holes through the relatively thin pre-drilling holes to avoid the situation that the conventional thicker screw is directly drilled into bone, so that the bone around the screw is tiny broken, even the bone with an angle appears due to osteoporosis, then sleeving the device into a handheld screw driver to enable a hexagonal prism to bear force, rotating the device to enable the external thread part of the hollow tube to penetrate through the bone cortex and enter the bone marrow cavity, and keeping the limit disc outside the bone cortex to limit the device to continuously extend into the bone marrow cavity, thereby ensuring that the external thread part of the structural hollow tube of the device is at the inner side of the bone cortex and the limit disc is at the outer side of the bone cortex;
Pushing the cover body to enable the cover body to drive the polish rod to push the first disc, the second disc and the first connecting rod and the second connecting rod on the first disc and the second disc out of the left end of the hollow tube and enter the marrow cavity, after the first connecting rod is completely separated from the constraint of the hollow tube, the first connecting rod and the second connecting rod are mutually close to each other under the action of the tension spring and are like an umbrella, and after the fixing of the polish rod is achieved by the cover body being screwed on the hollow tube;
step three, lifting the device, wherein the external thread can have a certain binding force on the bone block in the bone cortex, when the holding force is insufficient, a plurality of first connecting rods in the device can contact the bone block skin support and tightly prop up the bone block, so that the device can firmly hold the bone block, and further, the movement of the bone block is realized, more than two devices can realize the free movement of the bone block, when the bone block needs to move along the axial direction of the hollow tube, the device is pressed down, if the external thread cannot have a certain binding force on the bone block in the bone cortex, and when the holding force is insufficient, the limiting disc is pressed to the bone surface of the bone block, so that the device is prevented from directly passing through the bone block;
Step four, when the treatment effect is satisfied and the device needs to be taken out, the cover body is screwed out from the right end of the hollow tube, and the polish rod is pulled rightwards, so that the second disc of the first disc, the second disc, the first connecting rod and the second connecting rod are contracted into the hollow tube, at the moment, the non-hinged ends of the first connecting rod and the second connecting rod are mutually far away, the first disc and the second disc are mutually far away, the tension spring is stretched, and the umbrella-shaped structure is completely contracted into the hollow tube;
And fifthly, sleeving the screw-out device on the hexagonal prism of the device, and rotating anticlockwise to enable the device to be taken out of the bone block.
The screw clamping device is novel in conception, ingenious in structure and high in practicability, and effectively solves the problems that in the prior art, the holding force of the screw is insufficient, and bone blocks cannot be moved or cannot be pressurized well easily.
Drawings
FIG. 1 is a front cross-sectional view of the first and second links of the present invention retracted into a hollow tube.
Fig. 2 is a front cross-sectional view of the present invention with the first and second links expanded to the outside of the hollow tube.
FIG. 3 is a left side view of the first and second links of the present invention when opened.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As can be seen from fig. 1 to 3, the bone block lifting and fixing device comprises a hollow tube 1 which is horizontal and has a left-right axis direction, an external thread 2 is arranged on the outer circle surface of the left side of the hollow tube 1, a limit disc 3 is arranged on the right side of the external thread 2 on the hollow tube 1, a hexagonal prism 4 is arranged on the outer circle surface of the right end part of the hollow tube 1, a polish rod 5 which can move left and right is coaxially arranged in the hollow tube 1, a first disc 6 is coaxially fixed on the left end part of the polish rod 5, a plurality of first connecting rods 7 hinged on the first disc 6 are uniformly distributed on the outer edge surface of the first disc 6, a second disc 8 is coaxially arranged at intervals on the left side of the first disc 6, the outer circular surface of the second disc 8 is hinged with a plurality of second connecting rods 9 which are in one-to-one correspondence with the first connecting rods 7, the first connecting rods 7 are hinged with the free ends of the corresponding second connecting rods 9, the first disc 6 and the second disc 8 are connected through tension springs 10, the right side of the hollow tube 1 is provided with a cover body 11 which can be rotatably arranged at the right end of the hollow tube 1, the right end part of the polish rod 5 is rotatably arranged on the cover body 11, when the cover body 11 is rotatably arranged on the hollow tube 1, the first disc 6 extends out from the left end of the hollow tube 1, the hinged ends of the first connecting rods 7 and the second connecting rods 9 are outwards extruded under the shrinkage state of the tension springs 10, and the polish rod 5 is pulled rightwards to enable the second disc 8 of the first disc 6, the first connecting rods 7 and the second connecting rods 9 to be completely retracted into the hollow tube 1.
In order to realize that the first connecting rod 7 and the second connecting rod 9 can better support, a plurality of baffle plates perpendicular to the axis of the first connecting rod 7 and the second connecting rod 9 are uniformly distributed on the first connecting rod 7 and the second connecting rod 9 at intervals along the axis, and the baffle plates do not interfere with each other when the first connecting rod 7 and the second connecting rod 9 retract into the hollow tube 1.
In order to realize the installation of the polish rod 5, a guide ring is arranged in the hollow tube 1, and the polish rod 5 penetrates through the guide ring and is limited by the guide ring.
The method for installing the bone block lifting and fixing device comprises the following steps:
Firstly, pre-drilling a bone block by using a 2.0mm Kirschner wire, through the relatively thin pre-drilling, avoiding the conventional thicker screw from directly drilling into bone, causing tiny bone fracture around the screw and even angle bone fracture caused by osteoporosis, then sleeving the device into a handheld screw driver to enable the hexagonal prism 4 to bear force, rotating the device to enable the external thread 2 of the hollow tube 1 to penetrate through bone cortex and enter the bone marrow cavity, leaving the limit disc 3 outside the bone cortex, and limiting the device to continuously penetrate into the bone marrow cavity, thereby ensuring that the external thread 2 of the structural hollow tube 1 of the device is positioned at the inner side of the bone cortex and the limit disc 3 is positioned at the outer side of the bone cortex;
Pushing the cover 11, so that the cover 11 drives the polish rod 5 to push the first disc 6, the second disc 8 and the first connecting rod 7 and the second connecting rod 9 thereon out of the left end of the hollow tube 1 and into the marrow cavity, after the first connecting rod 7 is completely separated from the constraint by the hollow tube 1, the first connecting rods 7 and the second connecting rod 9 are mutually close under the action of the tension spring 10 and are like an umbrella, and after the fixing of the polish rod 5 is realized by screwing the cover 11 on the hollow tube 1;
Step three, lifting the device, wherein the external thread 2 can have a certain binding force on the bone block in the bone cortex, when the holding force is insufficient, a plurality of first connecting rods 7 in the device can contact the bone block skin support and tightly prop up, so that the device can firmly hold the bone block, and further the movement of the bone block is realized, more than two devices can realize the free movement of the bone block, when the bone block needs to move along the axial direction of the hollow tube 1, the device is pressed down, if the external thread 2 cannot have a certain binding force on the bone block in the bone cortex, and when the holding force is insufficient, the limiting disc 3 is pressed to the bone surface of the bone block, so that the device is prevented from directly penetrating through the bone block;
step four, when the treatment effect is satisfied and the device needs to be taken out, the cover 11 can be screwed out from the right end of the hollow tube 1, and the polished rod 5 is pulled rightwards, so that the second disc 8 of the first disc 6 and the second disc 7 as well as the first connecting rod 7 and the second connecting rod 9 are contracted into the hollow tube 1, at the moment, the non-hinged ends of the first connecting rod 7 and the second connecting rod 9 are mutually far away, the first disc 6 and the second disc 8 are mutually far away, the tension spring 10 is stretched, and finally the umbrella-shaped structure is completely contracted into the hollow tube 1;
And fifthly, sleeving the screw-out device on the hexagonal prism 4 of the device, and rotating anticlockwise to enable the device to be taken out of the bone block.
The device is made of stainless steel, and needs to maintain enough hardness.
The screw clamping device is novel in conception, ingenious in structure and high in practicability, and effectively solves the problems that in the prior art, the holding force of the screw is insufficient, and bone blocks cannot be moved or cannot be pressurized well easily.
Claims (3)
1. The bone block lifting and fixing device is characterized by comprising a hollow pipe (1) which is horizontal and has a left axis and a right axis, wherein an external thread (2) is arranged on the outer circular surface of the left side of the hollow pipe (1), a limit disc (3) is arranged on the right side of the external thread (2) on the hollow pipe (1), a hexagonal prism (4) is arranged on the outer circular surface of the right end part of the hollow pipe (1), a polish rod (5) which can move left and right is coaxially arranged in the hollow pipe (1), a first disc (6) is coaxially fixed at the left end part of the polish rod (5), a plurality of first connecting rods (7) which are hinged to the first disc (6) are uniformly distributed on the outer circular surface of the first disc (6), a second disc (8) is coaxially arranged at the left side interval of the first disc (6), a plurality of second connecting rods (9) which are in one-to-one correspondence with the first connecting rods (7) are hinged to each other on the outer circular surface of the second disc (8), the free ends of the first connecting rods (7) and the corresponding second connecting rods (9) are mutually hinged, a first disc (6) and the second connecting rods (8) are coaxially fixed at the left end part of the right end part of the polish rod (5) and a hollow pipe (11) are rotatably arranged on the right end part (1) through the hollow pipe (1), the first disc (6) extends out of the left end of the hollow tube (1), the hinged ends of the first connecting rod (7) and the second connecting rod (9) are extruded outwards under the shrinkage state of the tension spring (10), and the first disc (6), the second disc (8) and the first connecting rod (7) and the second connecting rod (9) can be completely retracted into the hollow tube (1) by pulling the polished rod (5) to the right.
2. The bone block lifting and fixing device according to claim 1, wherein a plurality of baffle plates perpendicular to the axis of the first connecting rod (7) and the second connecting rod (9) are uniformly distributed on the first connecting rod and the second connecting rod (9) at intervals along the axis, and the baffle plates do not interfere with each other when the first connecting rod (7) and the second connecting rod (9) retract into the hollow tube (1).
3. Bone block lifting and fixing device according to claim 1, characterized in that a guiding ring is arranged in the hollow tube (1), and a polish rod (5) penetrates through the wire ring and is limited by the guiding ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386774.2A CN113069197B (en) | 2021-04-12 | 2021-04-12 | Bone block lifting and fixing device and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386774.2A CN113069197B (en) | 2021-04-12 | 2021-04-12 | Bone block lifting and fixing device and installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113069197A CN113069197A (en) | 2021-07-06 |
| CN113069197B true CN113069197B (en) | 2024-04-19 |
Family
ID=76617215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110386774.2A Active CN113069197B (en) | 2021-04-12 | 2021-04-12 | Bone block lifting and fixing device and installation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN113069197B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457017A1 (en) * | 1990-05-15 | 1991-11-21 | Synthes AG, Chur | Fixations system for clamps |
| CN2243865Y (en) * | 1995-03-27 | 1997-01-01 | 陈奇 | Internal fixing screw for fracture of neck of femur |
| DE19841252A1 (en) * | 1998-09-09 | 2000-03-30 | Aesculap Ag & Co Kg | Device for inserting bone-screw, comprising of sleeve, pulling rod and tensioning element, in particular suitable for inserting screw in distant area of body |
| CN2404491Y (en) * | 2000-01-14 | 2000-11-08 | 霍新明 | Pressing type steel bone plate with internal fixation |
| DE20303647U1 (en) * | 2003-02-27 | 2003-05-08 | Aesculap AG & Co. KG, 78532 Tuttlingen | Surgical instrument for positioning of fixing device for flat bone sections, comprising arrangement for consecutive moving of joint element |
| CN103610489A (en) * | 2013-11-26 | 2014-03-05 | 张英泽 | Intramedullary repositor for fracture of long bones of arms and legs |
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| CN104665902A (en) * | 2015-03-02 | 2015-06-03 | 毕宏政 | Guide fixing device for reduction of fracture |
| CN107280758A (en) * | 2017-07-21 | 2017-10-24 | 湖南丹尼尔智能科技有限公司 | A kind of orthopaedics Kirschner wire fixation device |
| CN109464184A (en) * | 2019-01-15 | 2019-03-15 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6736819B2 (en) * | 2001-10-18 | 2004-05-18 | Kishore Tipirneni | System and method for fixation of bone fractures |
| US20040092945A1 (en) * | 2002-04-10 | 2004-05-13 | Ferree Bret A. | Implant integrity measurement apparatus |
| US8162990B2 (en) * | 2006-11-16 | 2012-04-24 | Spine Wave, Inc. | Multi-axial spinal fixation system |
| US8961523B2 (en) * | 2007-07-13 | 2015-02-24 | K2M, Inc. | Rod reduction device and method of use |
| US20110184426A1 (en) * | 2007-09-04 | 2011-07-28 | Garces Martin Gerardo | Device for fixing screws in osteoporotic bones |
| US20140243826A1 (en) * | 2013-02-28 | 2014-08-28 | Yechiel Gotfried | Method for connecting fractured bone |
-
2021
- 2021-04-12 CN CN202110386774.2A patent/CN113069197B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457017A1 (en) * | 1990-05-15 | 1991-11-21 | Synthes AG, Chur | Fixations system for clamps |
| CN2243865Y (en) * | 1995-03-27 | 1997-01-01 | 陈奇 | Internal fixing screw for fracture of neck of femur |
| DE19841252A1 (en) * | 1998-09-09 | 2000-03-30 | Aesculap Ag & Co Kg | Device for inserting bone-screw, comprising of sleeve, pulling rod and tensioning element, in particular suitable for inserting screw in distant area of body |
| CN2404491Y (en) * | 2000-01-14 | 2000-11-08 | 霍新明 | Pressing type steel bone plate with internal fixation |
| DE20303647U1 (en) * | 2003-02-27 | 2003-05-08 | Aesculap AG & Co. KG, 78532 Tuttlingen | Surgical instrument for positioning of fixing device for flat bone sections, comprising arrangement for consecutive moving of joint element |
| CN103610489A (en) * | 2013-11-26 | 2014-03-05 | 张英泽 | Intramedullary repositor for fracture of long bones of arms and legs |
| CN203953780U (en) * | 2014-07-29 | 2014-11-26 | 青岛市市立医院 | A kind of elongated tunnel bone cavity bone grafting instrument |
| CN104665902A (en) * | 2015-03-02 | 2015-06-03 | 毕宏政 | Guide fixing device for reduction of fracture |
| CN107280758A (en) * | 2017-07-21 | 2017-10-24 | 湖南丹尼尔智能科技有限公司 | A kind of orthopaedics Kirschner wire fixation device |
| CN109464184A (en) * | 2019-01-15 | 2019-03-15 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
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| Publication number | Publication date |
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| CN113069197A (en) | 2021-07-06 |
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