CN108309418A - A kind of Magnetic force tracting device - Google Patents
A kind of Magnetic force tracting device Download PDFInfo
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- CN108309418A CN108309418A CN201810117259.2A CN201810117259A CN108309418A CN 108309418 A CN108309418 A CN 108309418A CN 201810117259 A CN201810117259 A CN 201810117259A CN 108309418 A CN108309418 A CN 108309418A
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- snap ring
- electromagnet
- magnetic force
- rod
- ring
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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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
-
- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6491—Devices extending alongside the bones to be positioned allowing small-scale motion of bone ends
-
- 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)
- Life Sciences & Earth Sciences (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 belongs to technical field of medical equipment,Relate generally to a kind of Magnetic force tracting device,Including the im rod being set in bone cavity,And by bone and the fixed intramedullary nail of im rod,Magnetic force tracting device both ends are equipped with the first snap ring and the second snap ring,First snap ring and second snap ring one end are hinged,The other end is equipped with fixed otic placode,Connecting hole is offered on the fixed otic placode,First snap ring and the second snap ring lateral wall radially offer tapped through hole,Adjusting screw rod is equipped in the tapped through hole,Flexural pivot has positioning to block to the adjusting screw rod in annulus where the first snap ring,Outer diameter equal cylinder guide rod and threaded guide rod are connected between first snap ring at Magnetic force tracting device both ends,Between second snap ring,It mitigates the problem of patient burden avoids puncturing hole infection simultaneously,It draws more convenient,And do not easily cause sense of discomfort.
Description
Technical field
The invention belongs to technical field of medical equipment, and in particular to a kind of Magnetic force tracting device.
Background technology
Intramedullary nail is a kind of inner fixing device of human bone marrow's intracavitary, treats the common medical instrument of fracture.Intramedullary nail is
The long bone after fracture is connected by intramedullary nail body and pinning in ossis, having makes sclerite contraposition pair
Line, it is fixed, the function of certain gravity is supported, with sharp growth of spur union.And intramedullary nail is difficult when in big section of defect of bone
To play good fixed function, and do not have the ability of skeletal traction, generally requires to use bone to move and be fixed from outside
Each segment of bone carries out minimally invasive osteotomy, is slowly pulled daily at one end, with the original bone defect of newly long Bone Defect Repari,
But pinprick is more to be susceptible to infection, while bone is moved and is fixed on patient body-surface and is affected to patient's daily life, is easy
Making patients' physical and mental burden is unfavorable for rehabilitation medical.It is traditional draw intramedullary nail and be connected through a screw thread mode make fixed traction,
It needs to draw bone by force when adjusting, patient is made to be susceptible to sense of discomfort, while adjusting more inconvenience.
Invention content
The problem of based on being mentioned in above-mentioned background technology, the present invention provides a kind of Magnetic force tracting devices, it mitigates patient
The problem of bearing while avoiding puncturing hole infection, traction is more convenient, and does not easily cause sense of discomfort.
The technical solution adopted by the present invention is as follows:
A kind of Magnetic force tracting device, including the im rod that is set in bone cavity and by bone and the fixed marrow of im rod
Interior nail, Magnetic force tracting device both ends are equipped with the first snap ring and the second snap ring, first snap ring and second snap ring one end
The hinged, other end is equipped with fixed otic placode, and connecting hole, first snap ring and the second snap ring are offered on the fixed otic placode
Lateral wall radially offers tapped through hole, is equipped with adjusting screw rod in the tapped through hole, the adjusting screw rod is in the first snap ring
Flexural pivot has positioning to block in the annulus of place, and the equal cylinder of outer diameter is connected between first snap ring at Magnetic force tracting device both ends
Guide rod and threaded guide rod are equipped with the first electromagnet, institute between first snap ring in sliding sleeve on cylinder guide rod and threaded guide rod
It states and is connected with two cylinder guide rods between second snap ring at Magnetic force tracting device both ends, in two cylinders between second snap ring
Sliding sleeve is equipped with the second electromagnet on guide rod, and first electromagnet and the second electromagnet are respectively connected with the pulse power.
It further limits, first electromagnet and the second electromagnet are semi-annular shape structure, first electromagnet
Both ends be equipped with rectangular preiection, the both ends of second electromagnet are equipped with rectangular recess, the width dimensions etc. of the rectangular preiection
It is less than the length dimension of rectangular recess in the width dimensions of rectangular recess, the length dimension of rectangular preiection.
It further limits, regulating mechanism is bolted on the threaded guide rod, the regulating mechanism includes regulation ring, connecting pole
And connection ring, the regulation ring axially offer the threaded hole to match with threaded guide rod, the regulation ring passes through with connection ring
Connecting pole is fixedly connected, and the connection ring section is circle, and the first electromagnet right end is opened up in regulating mechanism corresponding position
There is the link slot to match with connection ring, circular arc where the connection channel section cell wall is minor arc.
It further limits, cylinder guide rod surface is equipped with length scale.
It further limits, the first snap ring is hinged one end and is equipped with hinged fixture block, and second snap ring is hinged one end and is equipped with two pieces
Hinged otic placode, the hinged fixture block are arranged between hinged otic placode and by hingedly column articulated, fixed ear on second snap ring
The connecting hole inner wall of plate is axially arranged with connecting pin, and the connecting pin, which is pierced by the first snap ring, fixes otic placode one end equipped with ball head column
The connecting hole of plug, first snap ring is rounded structure at the second snap ring one end open.
A kind of traction method of Magnetic force tracting device, includes the following steps in the present invention:
A, Medullary fixation:Im rod is penetrated in bone cavity, so that im rod both ends is located in the knochenbruch at both ends, then leads to
It crosses intramedullary nail the knochenbruch at im rod both ends is fixed with im rod both ends respectively, then im rod one end knochenbruch be carried out micro-
Wound osteotomy forms traction bone and traction magnetic patch is fixed in traction bone;
B, timing is drawn:By being connected with Power supply timer between first the second electromagnet of electromagnet and power supply, control
The work in stipulated time section of first electromagnet and the second electromagnet;
C, concussion traction:The company's of series connection pulse power between the first electromagnet, the second electromagnet and time switch, passes through arteries and veins
It rushes power supply and forms pulse current, it is in alternately to change to make the power of the first electromagnet and the magnetic field intensity of the second electromagnet, in turn
Traction magnetic patch to being fixed on bones forms the gravitation of variation, realizes that the concussion to bone is drawn, keeps the growth of osteotomy area new
Bone.
It further limits, the power parameter of the pulse power described in step c is:In a T, the width carved at the beginning
Value is 20V, and the amplitude at T moment is 24V, is 20V at the T moment, is 16V in the amplitude at T moment, is 20V at the 1T moment.
The advantageous effect that the present invention has:
1, fixed traction magnetic patch in osteotomy is pulled by forming magnetic field in external electromagnet, guiding osteotomy area is new
The growth of bone, dismounting is easy for installation, and patient is facilitated to use;
2, Magnetic force tracting device is set to external and is not required to puncture injected organism tissue, mitigates patient burden and avoids simultaneously
The problem of puncturing hole infection;
3, by Power supply timer can unrestricted choice use time have reached better traction effect;
4, electromagnet connects the pulse power, and the pulse current formed by the pulse power makes the magnetic field intensity of electromagnet be in
Variable condition, and then electromagnet is made to be in variable condition, stimulation of the enhancing tractive force to osteotomy area to the tractive force for drawing magnetic patch
Effect is to improve traction effect;
5, the position of positioning card is adjusted by changing the penetration depth of adjusting screw rod, eliminates individual difference to using
The influence of demand, and then coordinate the use of different crowd;
6, cylinder guide rod is equipped with length marking, is bolted with the regulating mechanism being connected with electromagnet on threaded guide rod, passes through
The position for rotating the changeable electromagnet of regulating mechanism, is adjusted the position of electromagnet according to new bone growth situation, into one
Step improves traction effect.
Description of the drawings
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides:
Fig. 1 is a kind of structural schematic diagram of Magnetic force tracting device embodiment of the present invention;
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1;
Fig. 3 is the structural schematic diagram of unfolded state in a kind of Magnetic force tracting device embodiment of the present invention;
Fig. 4 is the structural schematic diagram of solenoid part element in a kind of Magnetic force tracting device embodiment of the present invention;
Fig. 5 is the partial structural diagram of solenoid part element in a kind of Magnetic force tracting device embodiment of the present invention
Fig. 6 is the enlarged structure schematic diagram at C in Fig. 5;
Main element symbol description is as follows:
First snap ring 11, connecting pin 121, bulb plunger 122, adjusting screw rod 13, positioning card 14, is fixed second snap ring 12
Otic placode 15, connecting hole 16, hinged fixture block 17, hinged otic placode 18, the first electromagnet 21, the second electromagnet 22, via 23, connection
Slot 24, cylinder guide rod 3, threaded guide rod 4, regulating mechanism 5, regulation ring 51, connection ring 52, connecting pole 53, threaded hole 54.
Specific implementation mode
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
Embodiment
As shown in figs. 1 to 6, a kind of Magnetic force tracting device, including the im rod that is set in bone cavity and by bone and marrow
The fixed intramedullary nail of interior bar, Magnetic force tracting device both ends are equipped with the first snap ring 11 and the second snap ring 12, the first snap ring 11 and
Two snap rings, 12 one end is hinged, the other end is equipped with fixed otic placode 15, and connecting hole 16, the first snap ring are offered on fixed otic placode 15
11 and 12 lateral wall of the second snap ring radially offer tapped through hole, adjusting screw rod 13, adjusting screw rod 13 are equipped in tapped through hole
There is positioning card 14 in flexural pivot in 11 place annulus of the first snap ring, is connected between first snap ring 11 at Magnetic force tracting device both ends outer
The equal cylinder guide rod 3 of diameter and threaded guide rod 4 are equipped in sliding sleeve on cylinder guide rod 3 and threaded guide rod 4 between first snap ring 11
First electromagnet 21, is connected with two cylinder guide rods 3 between second snap ring 12 at Magnetic force tracting device both ends, the second snap ring 12 it
Between in sliding sleeve on two cylinder guide rods 3 be equipped with the second electromagnet 22, the second electromagnet 22 be equipped with cylinder guide rod 3 it is matched
Via 23, the first electromagnet 21 and the second electromagnet 22 are respectively connected with the pulse power, and such structure design is drawn
When that draft gear is fixed on patient is external, it is the first electromagnet 21 and the second electromagnetism to provide pulse current by the pulse power
Iron 22 is powered, and variation magnetic field is generated by pulse current, by completing, to the drawing of knochenbruch, drawing to the traction of traction magnetic patch
Osteotomy is stimulated by the tractive force of fluctuation in the process, to promote osteotomy area new bone growth.
Using steps are as follows in the present embodiment:
1, Medullary fixation:Im rod is penetrated in bone cavity, so that im rod both ends is located in the knochenbruch at both ends, then leads to
It crosses intramedullary nail the knochenbruch at im rod both ends is fixed with im rod both ends respectively, then im rod one end knochenbruch be carried out micro-
Wound osteotomy forms traction bone and traction magnetic patch is fixed in traction bone;
2, timing is drawn:By being connected with Power supply timer between 21 second electromagnet 22 of the first electromagnet and power supply,
Control the work in stipulated time section of the first electromagnet 21 and the second electromagnet 22;
3, concussion traction:The company's of series connection pulse power between the first electromagnet 21, the second electromagnet 22 and time switch leads to
Extra pulse power supply forms pulse current, and it is in alternately to become to make the power of the first electromagnet 21 and the magnetic field intensity of the second electromagnet 22
Change, and then form the gravitation of variation to the traction magnetic patch for being fixed on bones, realizes that the concussion to bone is drawn, make osteotomy area
Grow new bone.
It is preferred that the power parameter of the pulse power is in step c:In a T, the amplitude carved at the beginning is 20V, T
The amplitude at moment is 24V, is 20V at the T moment, is 16V in the amplitude at T moment, is 20 at the 1T moment.
It is preferred that the first electromagnet 21 and the second electromagnet 22 are semi-annular shape structure, the both ends of the first electromagnet 21 are set
There are rectangular preiection, the both ends of the second electromagnet 22 to be equipped with rectangular recess, the width dimensions of rectangular preiection are equal to the width of rectangular recess
Spend size, rectangular preiection length dimension be less than rectangular recess length dimension, such structure design, in use just
It cooperates, is easily installed in the first electromagnet 21 and the second electromagnet 22.
It is preferred that being bolted with regulating mechanism 5 on threaded guide rod 4, regulating mechanism 5 includes regulation ring 51, connecting pole 53 and connection
Ring 52, regulation ring 51 is axial to offer the threaded hole 54 to match with threaded guide rod 4, and regulation ring 51 passes through with connection ring 52 to be connect
Column 53 is fixedly connected, and 52 section of connection ring is circle, and 21 right end of the first electromagnet offers and connects in 5 corresponding position of regulating mechanism
The link slot 24 that ring 52 matches is connect, circular arc where 24 section cell wall of link slot is minor arc, and such structure design passes through rotation
Regulation ring 51 makes regulation ring 51, and threadingly the sliding of guide rod 4 can drive the first electromagnet 21 and the second electromagnet 22 to move, and simplify
Easy to operate use.
It is preferred that 3 surface of cylinder guide rod is equipped with length scale, such structure design is adjusting the first electromagnet 21 and the
When two electromagnet 22, make that degree of regulation is more preferable as reference with length scale.
It is preferred that the first snap ring 11, which is hinged one end, is equipped with hinged fixture block 17, it is hinged equipped with two pieces that the second snap ring 12 is hinged one end
Otic placode 18, hinged fixture block 17 are arranged between hinged otic placode 18 and are hinged by hinge column 19, and otic placode is fixed on the second snap ring 12
15 16 inner wall of connecting hole is axially arranged with connecting pin 121, and connecting pin 121, which is pierced by the first snap ring 11, to be fixed 15 one end of otic placode and set
There is bulb plunger 122, the connecting hole 16 of the first snap ring 11 is rounded structure, such knot at 12 one end open of the second snap ring
Structure designs, and the first snap ring 11 and the second snap ring 12 can directly carry out snapping during the installation process, and when dismounting presses bulb plunger 122
First snap ring 11 and the second snap ring 12 are pulled to both ends, separation can be completed, easy to use, practicability is preferable.
A kind of Magnetic force tracting device provided by the invention is described in detail above.The explanation of specific embodiment is
It is used to help understand the method and its core concept of the present invention.It should be pointed out that coming for those skilled in the art
It says, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It also falls within the protection scope of the claims of the present invention.
Claims (7)
1. a kind of Magnetic force tracting device, including the im rod that is set in bone cavity and will bone in the fixed marrow of im rod
Nail, it is characterised in that:Magnetic force tracting device both ends are equipped with the first snap ring (11) and the second snap ring (12), first card
Ring (11) and the second snap ring (12) one end is hinged, the other end is equipped with fixed otic placode (15), is opened on the fixed otic placode (15)
Equipped with connecting hole (16), first snap ring (11) and the second snap ring (12) lateral wall radially offer tapped through hole, described
Adjusting screw rod (13) is equipped in tapped through hole, flexural pivot has positioning to the adjusting screw rod (13) in annulus where the first snap ring (11)
Block (14), outer diameter equal cylinder guide rod (3) and spiral shell are connected between first snap ring (11) at Magnetic force tracting device both ends
Line guide rod (4) is equipped with the first electromagnetism between first snap ring (11) in sliding sleeve on cylinder guide rod (3) and threaded guide rod (4)
Iron (21) is connected with two cylinder guide rods (3), second card between second snap ring (12) at Magnetic force tracting device both ends
Between ring (12) the second electromagnet (22), first electromagnet (21) and the are equipped in sliding sleeve on two cylinder guide rods (3)
Two electromagnet (22) are respectively connected with the pulse power.
2. a kind of Magnetic force tracting device according to claim 1, it is characterised in that:First electromagnet (21) and second
Electromagnet (22) is semi-annular shape structure, and the both ends of first electromagnet (21) are equipped with rectangular preiection, second electromagnetism
The both ends of iron (22) are equipped with rectangular recess, and the width dimensions of the rectangular preiection are convex equal to width dimensions, the rectangle of rectangular recess
The length dimension risen is less than the length dimension of rectangular recess.
3. a kind of Magnetic force tracting device according to claim 2, it is characterised in that:It is bolted on the threaded guide rod (4)
Regulating mechanism (5), the regulating mechanism (5) include regulation ring (51), connecting pole (53) and connection ring (52), the regulation ring
(51) axial to offer the threaded hole (54) to match with threaded guide rod (4), the regulation ring (51) passes through with connection ring (52)
Connecting pole (53) is fixedly connected, and connection ring (52) section is circle, and the first electromagnet (21) right end is in regulating mechanism
(5) corresponding position offers the link slot (24) to match with connection ring (52), circle where link slot (24) the section cell wall
Arc is minor arc.
4. a kind of Magnetic force tracting device according to claim 3, it is characterised in that:Cylinder guide rod (3) surface is equipped with
Length scale.
5. a kind of Magnetic force tracting device according to claim 4, it is characterised in that:Fixed ear on second snap ring (12)
Connecting hole (16) inner wall of plate (15) is axially arranged with connecting pin (121), and the connecting pin (121) is pierced by the first snap ring (11) solid
Determine otic placode (15) one end and be equipped with bulb plunger (122), the connecting hole (16) of first snap ring (11) is close to the second snap ring (12)
It is rounded structure at one end open.
Further include a kind of Magnetic force tracting method 6. according to a kind of Magnetic force tracting device described in any one of Claims 1 to 5,
It is characterized in that:Include the following steps:
A, Medullary fixation:Im rod is penetrated in bone cavity, so that im rod both ends is located in the knochenbruch at both ends, then passes through marrow
The knochenbruch at im rod both ends is fixed with im rod both ends interior nail respectively, then carries out minimally invasive section to im rod one end knochenbruch
Bon e formation draws bone and traction magnetic patch is fixed in traction bone;
B, timing is drawn:By being connected with Power supply timer between power supply in (21) second electromagnet (22) of the first electromagnet,
Control the first electromagnet (21) and the second electromagnet (22) work in stipulated time section;
C, concussion traction:In the first electromagnet (21), the second electromagnet (22) company's of series connection pulse power between time switch, lead to
Extra pulse power supply forms pulse current, and it is in replace to make the first electromagnet (21) and the power of the magnetic field intensity of the second electromagnet (22)
Property variation, and then form the gravitation of variation to the traction magnetic patch for being fixed on bones, realize and the concussion of bone is drawn.
7. a kind of Magnetic force tracting device according to claim 6, it is characterised in that:The pulse power described in step c
Power parameter is:In a T, the amplitude carved at the beginning is 20V,The amplitude at moment is 24V,Moment is 20V,
The amplitude at moment is 16V, is 20V at the 1T moment.
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CN201810117259.2A CN108309418B (en) | 2018-02-06 | 2018-02-06 | A kind of Magnetic force tracting device |
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CN201810117259.2A CN108309418B (en) | 2018-02-06 | 2018-02-06 | A kind of Magnetic force tracting device |
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CN108309418B CN108309418B (en) | 2019-09-13 |
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CN201810117259.2A Expired - Fee Related CN108309418B (en) | 2018-02-06 | 2018-02-06 | A kind of Magnetic force tracting device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110013295A (en) * | 2019-05-15 | 2019-07-16 | 柴益民 | A kind of exterior fixing rack promoting bone uptake |
CN111714193A (en) * | 2020-05-28 | 2020-09-29 | 广州新诚生物科技有限公司 | Orthopedic external fixation support |
CN111714192A (en) * | 2020-05-28 | 2020-09-29 | 广州新诚生物科技有限公司 | Noninvasive orthopedics external fixation support capable of automatically adjusting bone section spacing |
CN112643575A (en) * | 2020-12-10 | 2021-04-13 | 安徽上元家居材料股份有限公司 | Template positioning magnetic direction-adjusting lifting hand and positioning process thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110013295A (en) * | 2019-05-15 | 2019-07-16 | 柴益民 | A kind of exterior fixing rack promoting bone uptake |
CN111714193A (en) * | 2020-05-28 | 2020-09-29 | 广州新诚生物科技有限公司 | Orthopedic external fixation support |
CN111714192A (en) * | 2020-05-28 | 2020-09-29 | 广州新诚生物科技有限公司 | Noninvasive orthopedics external fixation support capable of automatically adjusting bone section spacing |
CN112643575A (en) * | 2020-12-10 | 2021-04-13 | 安徽上元家居材料股份有限公司 | Template positioning magnetic direction-adjusting lifting hand and positioning process thereof |
CN112643575B (en) * | 2020-12-10 | 2022-07-29 | 安徽上元家居材料股份有限公司 | Template positioning magnetic direction-adjusting lifting hand and positioning process thereof |
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