CN110432973A - A kind of Kirschner wire propeller of the orthopaedics with self-locking function - Google Patents
A kind of Kirschner wire propeller of the orthopaedics with self-locking function Download PDFInfo
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- CN110432973A CN110432973A CN201910755182.6A CN201910755182A CN110432973A CN 110432973 A CN110432973 A CN 110432973A CN 201910755182 A CN201910755182 A CN 201910755182A CN 110432973 A CN110432973 A CN 110432973A
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- sleeve
- push rod
- kirschner wire
- fixes sleeve
- pipe
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary 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)
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- Animal Behavior & Ethology (AREA)
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Abstract
The invention discloses a kind of Kirschner wire propeller of orthopaedics with self-locking function, including propulsion unit, accommodate pipe and the solid lock unit for fixation Kel's needle, propulsion unit includes fixes sleeve, adjust sleeve, actuator push rod and engaging mechanism, actuator push rod is equipped with threaded portion, the right part of fixes sleeve is provided with screwed ring, it is formed in the inner circumferential of screwed ring and carries out thread binding internal screw thread with the threaded portion of actuator push rod, engaging mechanism is provided between screwed ring and the inner circumferential of fixes sleeve, engaging mechanism rotates screwed ring relative to fixes sleeve when being used to apply to actuator push rod predetermined an or more load, adjust the right end that sleeve is connected to fixes sleeve, adjusting sleeve can rotate around the axis of fixes sleeve, the inner circumferential for adjusting sleeve is equipped with guiding groove, the right end of actuator push rod is connected with to be cooperated with guiding groove Key male member, accommodate pipe and be connected to the left end of fixes sleeve, the setting of solid lock unit is accommodating in pipe, easy to use.
Description
Technical field
The present invention relates to the field of medical instrument technology, specifically, refer to a kind of kirschner of the orthopaedics with self-locking function
Needle propeller.
Background technique
Kirschner wire is a kind of common internal fixation material of orthopaedics, and former specification is generally fixed to 20 centimeters or so, diameter
There are different several specifications between 0.5-2 millimeters, it is solid for fixing short and small fracture or the little fracture of avulsion fracture iso-stress
It is fixed, it is also commonly used in bone surgery in the fixation of interim sclerite.
Clinically for Orthopeadic Surgery doctor in fracture site fixed to patient, bone junction is usually bored one with electric drill by doctor
Then a hole needs doctor to be pounded Kirschner wire into hole using hammer with hand steered Kirschner wire, an another hand, there may come a time when by
Patient bone is damaged in overexerting, uses the clamping Kirschner wire of collet sometimes, but the radius adjusting range of collet has
Limit, can not adapt to large range of Kirschner wire model, thus when in use, and collet does not have a versatility, more universal for more
A head meets the Kirschner wire of different size, inconvenient to use, and it is bad to clamp feel, the biggish effect for reducing operation
Rate.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to above-mentioned state of the art, and provide a kind of orthopaedics use have from
The Kirschner wire propeller of lock function, impeller design of the invention is reasonable, it is laborsaving to promote, while having preferable clamping radius tune
Energy saving power, thus there is the versatility for different size Kirschner wire, and easy to use, work efficiency is high, in operation,
Actuator push rod and solid lock unit matching, can be fixed Kirschner wire.
The technical scheme of the invention to solve the technical problem is:
Fixation Kel's are managed and are used for a kind of Kirschner wire propeller of the orthopaedics with self-locking function, including propulsion unit, receiving
The solid lock unit of needle, propulsion unit include fixes sleeve, adjust sleeve, actuator push rod and engaging mechanism, set on actuator push rod
There is threaded portion, the right part of fixes sleeve is provided with screwed ring, the screw thread with actuator push rod is formed in the inner circumferential of screwed ring
Part carries out thread binding internal screw thread, engaging mechanism is provided between screwed ring and the inner circumferential of fixes sleeve, engaging mechanism is used for
Rotate screwed ring relative to fixes sleeve when applying predetermined an or more load to actuator push rod, adjust sleeve be connected to it is solid
Determine the right end of sleeve, adjusting sleeve can rotate around the axis of fixes sleeve, and the inner circumferential for adjusting sleeve is equipped with guiding groove, pass
The right end of dynamic push rod is connected with the key male member with guiding groove cooperation, accommodates the left end that pipe is connected to fixes sleeve, solid lock unit
Setting is accommodating in pipe and can make straight-line displacement accommodating in pipe, solid lock unit include base, multiple lock sheets, guidance disk with
And actuating turntable, base, guidance disk and actuating turntable are offered using center as the center of circle, the identical circular through hole of size,
Multiple lock sheets, guidance disk and actuating turntable are successively set in base from the inside to the outside, and multiple lock sheets are supported to can
It is opened and closed the circular through hole of base, guides and is provided with rotation guiding groove on disk, lock sheet is equipped with the guide post cooperated with guiding groove, causes
For turn disk for driving lock sheet to be opened and closed, the locking end of lock sheet is formed with opening portion, and opening portion has with the circle of base
The opening of open amount of opening is determined centered on shape through-hole, the Kirschner wire periphery in the locking end and opening of lock sheet contradicts cooperation,
The left end of actuator push rod is provided with the actuator with actuating turntable cooperation, and the left side of actuator and the right side of actuating turntable are supported
Touching cooperation.
To optimize above-mentioned technical proposal, the measure taken further include:
In embodiment, the left side of actuator and the right side corresponding position of actuating turntable are equipped with strong magnets, relatively
Strong magnets be oppositely arranged with heteropolar, on same end face, the adjacent identical setting of strong magnets magnetic pole, for actuating turn
Disk makes actuator push rod relative to actuating turntable idle running when applying predetermined an or more load.
It in embodiment, accommodates and is provided with guide rail in pipe, the periphery of base is equipped with the guide groove being adapted to guide rail.
In embodiment, engaging mechanism is made of wind spring and the ratchet being arranged in fixes sleeve inner circumferential, and wind spring is inserted in screw thread
Between the periphery of ring and the inner circumferential of fixes sleeve, one end is disposed along in the card slot that screwed ring is axially formed, another side pressure
It leans against in the ratchet of fixes sleeve.
In embodiment, the arrival end for accommodating pipe is provided with fixing sleeve, and fixing sleeve is by connecting cylinder and along connecting cylinder right end in
The elastic piece composition that taper is uniformly arranged, connecting cylinder and the inner wall for accommodating pipe, which are interference fitted, to be connected.
In embodiment, the center of actuator push rod is equipped with Kirschner wire receiving hole.
It in embodiment, adjusts and offers positioning screw hole on sleeve, a bulb positioning screw places the positioning spiral shell for adjusting sleeve
The annular groove of hole and fixes sleeve is closely slidably matched, and limits and adjusts sleeve in the axial position of fixes sleeve.
In embodiment, accommodates pipe and be made of transparent material.
It in embodiment, accommodates and is provided with scale on the periphery of pipe, adjust and be provided with and accommodate on sleeve on the periphery of pipe
The corresponding scale of scale, fixes sleeve be equipped with a scale reference line, adjust sleeve rotate a circle, actuator push rod advance or
Retreat a screw pitch.
In embodiment, the locking end of lock sheet is provided with rubber latch item.
A kind of orthopaedics of the invention use with self-locking function Kirschner wire propeller, including propulsion unit, accommodate pipe and
For the solid lock unit of fixation Kel's needle, propulsion unit includes fixes sleeve, adjusts sleeve, actuator push rod and engaging mechanism,
Actuator push rod is equipped with threaded portion, and the right part of fixes sleeve is provided with screwed ring, is formed with and passes in the inner circumferential of screwed ring
The threaded portion of dynamic push rod carries out thread binding internal screw thread, is provided with engaging mechanism between screwed ring and the inner circumferential of fixes sleeve,
Engaging mechanism rotates screwed ring relative to fixes sleeve when being used to apply to actuator push rod predetermined an or more load, adjusts
In the right end of fixes sleeve, adjusting sleeve can rotate sleeve connection around the axis of fixes sleeve, adjust and set in the inner circumferential of sleeve
There is guiding groove, the right end of actuator push rod is connected with the key male member with guiding groove cooperation, accommodates pipe and is connected to fixes sleeve
Left end, the setting of solid lock unit are accommodating in pipe and can make straight-line displacement accommodating in pipe, and solid lock unit includes base, Duo Gesuo
Tight piece, guidance disk and actuating turntable, base, guidance disk and actuating turntable are offered using center as the center of circle, size phase
Same circular through hole, multiple lock sheets, guidance disk and actuating turntable are successively set in base from the inside to the outside, multiple lock sheets
It is supported to that the circular through hole of base can be opened and closed, guides and be provided with rotation guiding groove on disk, lock sheet is equipped with and guiding groove
The guide post of cooperation, for actuating turntable for driving lock sheet to be opened and closed, the locking end of lock sheet is formed with opening portion, opening portion tool
There is an opening that open amount of opening is determined centered on the circular through hole of base, outside the Kirschner wire in the locking end and opening of lock sheet
Contradict cooperation week, the left end of actuator push rod is provided with the actuator with actuating turntable cooperation, and the left side of actuator and actuating turn
The right side of disk contradicts cooperation, and design is reasonable, it is laborsaving to promote, while having preferable clamping radius regulating power, thus has
For the versatility of different size Kirschner wire, and it is easy to use, work efficiency is high, in operation, actuator push rod and solid lock
Unit matching can be locked to Kirschner wire.
Of the invention has the advantage that
1, facilitate gripping, when fixed, by rotating the adjusting sleeve of propulsion unit, Kirschner wire, time saving province can be quickly propelled
Power；
2, suitable for the Kirschner wire of different thicknesses, when using the Kirschner wire of different thicknesses, as long as adjusting solid lock unit, make to lock
The opening portion of piece composition, becomes larger or becomes smaller, to clamp the Kirschner wire of different thicknesses；
3, this propeller is linear advancement, is suitable for various types of Kirschner wires, while can be avoided rotation and having promoted Kirschner wire
To the secondary injury of fracture site.
4, actuator push rod and solid lock unit matching, when actuator push rod rotates and promotes solid lock unit, actuator push rod can make
Turntable rotation is activated, so that solid lock unit be made to lock Kirschner wire.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is axial sectional view of the invention；
Fig. 3 is engaging mechanism cross-sectional view of the invention；
Fig. 4 is solid lock unit three-dimensional structural schematic diagram of the invention；
Fig. 5 is solid lock unit left view of the invention；
Fig. 6 is left view after solid lock unit removal actuating turntable of the invention；
Fig. 7 is that removal guides left view after disk in Fig. 6；
Fig. 8 is that solid lock unit of the invention reduces schematic diagram after amount of opening.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 to Fig. 8 is structural schematic diagram of the invention.
Appended drawing reference therein are as follows: propulsion unit 1, fixes sleeve 11, adjusts sleeve 12, transmission at Kirschner wire receiving hole 10
Push rod 13, screwed ring 14, guiding groove 15, key male member 16, actuator 17, guide rail 18, guide groove 19, accommodate pipe 2, solid lock unit 3,
Base 31, lock sheet 32, guidance disk 33, actuating turntable 34, guide post 35, rotation guiding groove 36, opening 37, engaging mechanism 4, wind spring
41, ratchet 42, card slot 43, strong magnets 5, fixing sleeve 6, connecting cylinder 61, elastic piece 62, bulb positioning screw 7, rubber latch item
8。
It is as shown in Figures 1 to 8:
A kind of Kirschner wire propeller of orthopaedics with self-locking function, including propulsion unit 1, accommodate pipe 2 and for fixed gram
The solid lock unit 3 of family name's needle, propulsion unit 1 include fixes sleeve 11, adjust sleeve 12, actuator push rod 13 and engaging mechanism 4, pass
Dynamic push rod 13 is equipped with threaded portion, and the right part of fixes sleeve 11 is provided with screwed ring 14, is formed in the inner circumferential of screwed ring 14
Have and carry out thread binding internal screw thread with the threaded portion of actuator push rod 13, is arranged between screwed ring 14 and the inner circumferential of fixes sleeve 11
Have an engaging mechanism 4, engaging mechanism 4 make when being used to apply to actuator push rod 13 predetermined an or more load screwed ring 14 relative to
Fixes sleeve 11 rotates, and after Kirschner wire enters the innermost end in the hole accomplished fluently in advance, actuator push rod 13 just will not be in anterior displacement, this
When screwed ring 14 just rotated together with actuator push rod 13, adjust sleeve 12 and be connected to the right end of fixes sleeve 11, adjust sleeve 12
It can be rotated around the axis of fixes sleeve 11, the inner circumferential for adjusting sleeve 12 is equipped with guiding groove 15, the right end of actuator push rod 13
It is connected with the key male member 16 cooperated with guiding groove 15, sleeve 12 is adjusted and drives actuator push rod 13 to revolve together by key male member 16
Turn, accommodate the left end that pipe 2 is connected to fixes sleeve 11, the setting of solid lock unit 3 is accommodating in pipe 2 and can make in receiving pipe 2 straight
Displacement of the lines, solid lock unit 3 include base 31, multiple lock sheets 32, guidance disk 33 and actuating turntable 34, base 31, guidance disk
33 and actuating turntable 34 offer using center as the center of circle, the identical circular through hole of size, multiple lock sheets 32, guidance disk
33 and actuating turntable 34 be successively set in base 31 from the inside to the outside, multiple lock sheets 32 are supported to that base 31 can be opened and closed
Circular through hole, guide disk 33 on be provided with rotation guiding groove 36, lock sheet 32 be equipped with and rotation guiding groove 36 cooperate leads
Column 35 is additionally provided with secondary guide post on lock sheet 32, and secondary guide post is concordant with guidance 33 end face of disk, and actuating turntable 34 is for driving lock sheet
32 are opened and closed, and actuating turntable 34 is equipped with the guide hole being adapted to guide post 35, so that guide post 35 is driven to rotate, lock sheet 32
Locking end is formed with opening portion, and opening portion has the opening 37 that open amount of opening is determined centered on the circular through hole of base 31,
Kirschner wire periphery in the locking end and opening 37 of lock sheet 32, which contradicts, to be cooperated, and the left end of actuator push rod 13 is provided with to be turned with actuating
The actuator 17 that disk 34 cooperates, the left side of actuator 17 and the right side of actuating turntable 34 contradict and cooperate, when actuator push rod 13
Rotation pushes forward solid lock unit 3, and the driving actuating turntable 34 of actuator 17 of actuator push rod 13 rotates, and makes 32 locking end of lock sheet
The opening portion opening 37 of formation is reduced with fixation Kel's needle, and in moving process, the actuator 17 of actuator push rod 13 acts on always
In actuating turntable 34, therefore locking effect is good, and using actuator push rod 13, propulsion is laborsaving, and solid lock unit 3 has preferable clamping half
Diameter regulating power, thus there is the versatility for different size Kirschner wire, and easy to use, work efficiency is high, is grasping
In work, Kirschner wire can be fixed in actuator push rod and solid lock unit matching.
In embodiment, the left side of actuator 17 and the right side corresponding position of actuating turntable 34 are equipped with strong magnetic
Iron 5, opposite strong magnets 5 are oppositely arranged with heteropolar, and on same end face, the adjacent identical setting of 5 magnetic pole of strong magnets is used
Actuator push rod 13 is set to dally relative to actuating turntable 34 when applying predetermined an or more load to actuating turntable 34, Kirschner wire
Into after the innermost end in the hole accomplished fluently in advance, solid lock unit 3 just will not be in anterior displacement, and the strong magnets 5 being mutually attracted will
It misplaces, actuator push rod 13 dallies, when actuator push rod 13 is reversely rotated and bounced back backward, because making in 5 magnetic force of strong magnets
Under, actuating turntable 34 is reversely rotated, and the opening 37 for the opening portion for forming the locking end of lock sheet 32 expands, solid lock unit 3
Just Kirschner wire is unclamped, Kirschner wire can be exited from accommodating in pipe 2, while solid lock unit 3 can be with the position backward of actuator push rod 13
It moves.
It in embodiment, accommodates and is provided with guide rail 18 in pipe 2, the periphery of base 31 is equipped with the guide groove being adapted to guide rail 18
19, it prevents solid lock unit 3 from rotating, guides 3 straight-line displacement of solid lock unit.
In embodiment, engaging mechanism 4 is made of wind spring 41 and the ratchet 42 being arranged in 11 inner circumferential of fixes sleeve, wind spring 41
It is inserted between the periphery of screwed ring 14 and the inner circumferential of fixes sleeve 11, one end is disposed along the card that screwed ring 14 is axially formed
In slot 43, the other end is pressed against in the ratchet 42 of fixes sleeve 11, when applying predetermined an or more load to actuator push rod 13
When, deformation occurs for wind spring 41, and screwed ring 14 can rotate in fixes sleeve 11, and wind spring 41 and the friction of ratchet 42 generate click click
Sound, after load disappears, wind spring 41 will be pressed against again in the ratchet 42 of fixes sleeve 11, and screwed ring 14 just will not revolve
Turn, it is simple and practical in structure.
In embodiment, the arrival end for accommodating pipe 2 is provided with fixing sleeve 6, and fixing sleeve 6 is right by connecting cylinder 61 and along connecting cylinder 61
End is formed in the elastic piece 62 that back taper is uniformly arranged, and connecting cylinder 61 and the inner wall for accommodating pipe 2 are interference fitted and connect, and facilitates kirschner
Needle, which enters, accommodates pipe 2, is capable of fixing Kirschner wire by elastic piece 62.
In embodiment, the center of actuator push rod 13 is equipped with Kirschner wire receiving hole 10, and longer Kirschner wire can enter actuator push rod
Kirschner wire receiving hole 10 in, so as to shorten propeller overall length, reduce manufacturing cost, while more convenient to use.
It in embodiment, adjusts and offers positioning screw hole on sleeve 12, a bulb positioning screw 7, which places, adjusts determining for sleeve 12
Position screw hole and the annular groove of fixes sleeve 11 are closely slidably matched, and limit and adjust sleeve 12 in the axial position of fixes sleeve 11.
In embodiment, accommodates pipe 2 and be made of transparent material.
It in embodiment, accommodates and is provided with scale on the periphery of pipe 2, adjust the periphery for being provided on sleeve 12 and accommodating pipe 2
On the corresponding scale of scale, fixes sleeve 11 be equipped with a scale reference line, adjust sleeve 12 rotate a circle, transmission pushes away
Bar 13 moves forward or back a screw pitch, and the length for entering Kirschner wire is more accurate.
In embodiment, the locking end of lock sheet 32 is provided with rubber latch item 8.
In embodiment, location hole is offered on base 31, a positioning screw places location hole and actuating turn on base 31
The annular groove of disk 34 is closely slidably matched, and limits actuating turntable 34 in the axial position of base 31.
Kirschner wire propeller working principle and operating method of a kind of orthopaedics of the invention with self-locking function:
Kirschner wire is accommodated in pipe 2 by accommodating 2 front end fixing sleeve 6 of pipe into entering, after Kirschner wire reserves the length of needs, rotation
Modulation section sleeve 12 adjusts sleeve 12 and drives actuator push rod 13 to rotate together by key male member 16, actuator push rod 13 and screwed ring
14 internal screw threads engagement, so that accommodating anterior displacement in pipe 2, the rotation of actuator push rod 13 pushes forward solid lock unit 3, actuator push rod
The 13 driving actuating turntable 34 of actuator 17 rotates, and the opening portion opening 37 for forming 32 locking end of lock sheet is reduced with fixed gram
Family name's needle, actuator push rod 13 push solid lock unit 3 along accommodate 2 anterior displacement of pipe, Kirschner wire enter accomplish fluently in advance hole most in
Behind end, actuator push rod 13 does not just readvance, and deformation occurs for wind spring 41, and screwed ring 14 can rotate in fixes sleeve 11, wind spring
41 generate the sound of click click with the friction of ratchet 42, while solid lock unit 3 just will not be in anterior displacement, the strong magnets that are mutually attracted
5 will misplace, and actuator push rod 13 dallies, and operator hears that kaka sound just stops operation at this time, reversely rotate and adjust sleeve
12, because under 5 magneticaction of strong magnets, actuating turntable 34 is reversely rotated, the opening portion for forming the locking end of lock sheet 32
Opening 37 expand, solid lock unit 3 just unclamps Kirschner wire, can exit Kirschner wire, while 3 energy of solid lock unit from accommodating in pipe 2
Enough with 13 rearward displacement of actuator push rod, so as to subsequent operation.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (10)
1. Kirschner wire propeller of a kind of orthopaedics with self-locking function, it is characterized in that: including propulsion unit (1), accommodating pipe (2)
And the solid lock unit (3) for fixation Kel's needle, the propulsion unit (1) include fixes sleeve (11), adjust sleeve (12),
Actuator push rod (13) and engaging mechanism (4), the actuator push rod (13) are equipped with threaded portion, the fixes sleeve (11)
Right part is provided with screwed ring (14), and the threaded portion with the actuator push rod (13) is formed in the inner circumferential of the screwed ring (14)
Divide and carry out thread binding internal screw thread, is provided with the engagement between the screwed ring (14) and the inner circumferential of the fixes sleeve (11)
Mechanism (4), the engaging mechanism (4) make the spiral shell when being used to apply to the actuator push rod (13) predetermined an or more load
Line ring (14) is rotated relative to fixes sleeve (11), the right end for adjusting sleeve (12) and being connected to fixes sleeve (11), described
Adjusting sleeve (12) can rotate around the axis of fixes sleeve (11), and the inner circumferential for adjusting sleeve (12) is equipped with guiding groove
(15), the right end of the actuator push rod (13) is connected with the key male member (16) with the guiding groove (15) cooperation, the receiving
Pipe (2) is connected to the left ends of the fixes sleeve (11), and solid lock unit (3) setting is interior in receivings pipe (2) and can be
Accommodate in pipe (2) and make straight-line displacement, the solid lock unit (3) include base (31), multiple lock sheets (32), guidance disk (33) with
And actuating turntable (34), the base (31), guidance disk (33) and activate turntable (34) offer using center as the center of circle,
The identical circular through hole of size, multiple lock sheets (32), guidance disk (33) and actuating turntable (34) are set gradually from the inside to the outside
In base (31), multiple lock sheets (32) are supported to that the circular through hole of the base (31) can be opened and closed, described to draw
Rotation guiding groove (36) is provided on godet (33), the lock sheet (32) is equipped with the guide post with rotation guiding groove (36) cooperation
(35), the actuating turntable (34) is for driving the lock sheet (32) to be opened and closed, the locking end shape of the lock sheet (32)
At there is opening portion, the opening portion has the opening (37) that open amount of opening is determined centered on the circular through hole of base (31),
The locking end of the lock sheet (32) and the Kirschner wire periphery in opening (37) contradict and cooperate, the left end of the actuator push rod (13)
It is provided with the actuator (17) with actuating turntable (34) cooperation, the left side of the actuator (17) and the actuating turntable
(34) right side contradicts cooperation.
2. Kirschner wire propeller of a kind of orthopaedics according to claim 1 with self-locking function, it is characterized in that: the drive
The right side corresponding position of the left side of moving part (17) and actuating turntable (34) is equipped with strong magnets (5), relatively
Strong magnets (5) be oppositely arranged with heteropolar, on same end face, the identical setting of adjacent strong magnets (5) magnetic pole, for
Actuating turntable (34) makes the actuator push rod (13) relative to actuating turntable (34) idle running when applying predetermined an or more load.
3. Kirschner wire propeller of a kind of orthopaedics according to claim 2 with self-locking function, it is characterized in that: the appearance
Pipe (2) of receiving is interior to be provided with guide rail (18), and the periphery of the base (31) is equipped with the guide groove (19) being adapted to the guide rail (18).
4. Kirschner wire propeller of a kind of orthopaedics according to claim 3 with self-locking function, it is characterized in that: described connect
It closes mechanism (4) to be made of wind spring (41) and the ratchet (42) being arranged in fixes sleeve (11) inner circumferential, the wind spring (41) is inserted in
Between the periphery of the screwed ring (14) and the inner circumferential of the fixes sleeve (11), one end is disposed along the screwed ring
(14) in the card slot (43) being axially formed, the other end is pressed against in the ratchet (42) of the fixes sleeve (11).
5. Kirschner wire propeller of a kind of orthopaedics according to claim 4 with self-locking function, it is characterized in that: the appearance
The arrival end of pipe (2) received is provided with fixing sleeve (6), and the fixing sleeve (6) is in by connecting cylinder (61) and along connecting cylinder (61) right end
Elastic piece (62) composition that back taper is uniformly arranged, the connecting cylinder (61) and the inner wall for accommodating pipe (2) are interference fitted and connect
It connects.
6. Kirschner wire propeller of a kind of orthopaedics according to claim 5 with self-locking function, it is characterized in that: the biography
The center of dynamic push rod (13) is equipped with Kirschner wire receiving hole (10).
7. Kirschner wire propeller of a kind of orthopaedics according to claim 6 with self-locking function, it is characterized in that: the tune
Positioning screw hole is offered on section sleeve (12), a bulb positioning screw (7) places the positioning screw hole for adjusting sleeve (12) and fixation
The annular groove of sleeve (11) is closely slidably matched, and limits and adjusts sleeve (12) in the axial position of fixes sleeve (11).
8. Kirschner wire propeller of a kind of orthopaedics according to claim 7 with self-locking function, it is characterized in that: the appearance
Pipe (2) of receiving is made of transparent material.
9. Kirschner wire propeller of a kind of orthopaedics according to claim 8 with self-locking function, it is characterized in that: the appearance
Receive pipe (2) periphery on be provided with scale, described adjust is provided on sleeve (12) and accommodates the scale phase on the periphery for managing (2)
Corresponding scale, the fixes sleeve (11) are equipped with a scale reference line, and the adjusting sleeve (12) rotates a circle, described
Actuator push rod (13) moves forward or back a screw pitch.
10. Kirschner wire propeller of a kind of orthopaedics according to claim 9 with self-locking function, it is characterized in that: described
The locking end of lock sheet (32) is provided with rubber latch item (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910755182.6A CN110432973A (en) | 2019-08-15 | 2019-08-15 | A kind of Kirschner wire propeller of the orthopaedics with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910755182.6A CN110432973A (en) | 2019-08-15 | 2019-08-15 | A kind of Kirschner wire propeller of the orthopaedics with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110432973A true CN110432973A (en) | 2019-11-12 |
Family
ID=68435808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910755182.6A Withdrawn CN110432973A (en) | 2019-08-15 | 2019-08-15 | A kind of Kirschner wire propeller of the orthopaedics with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110432973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112220548A (en) * | 2020-09-26 | 2021-01-15 | 北京中安泰华科技有限公司 | Axial tensioner capable of measuring force |
-
2019
- 2019-08-15 CN CN201910755182.6A patent/CN110432973A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112220548A (en) * | 2020-09-26 | 2021-01-15 | 北京中安泰华科技有限公司 | Axial tensioner capable of measuring force |
| CN112220548B (en) * | 2020-09-26 | 2024-05-24 | 北京中安泰华科技有限公司 | Axial tensioner capable of measuring force |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191112 |
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| WW01 | Invention patent application withdrawn after publication |