CN110226964A - A kind of disassembly skeletal fixation instrument screw extractor - Google Patents

A kind of disassembly skeletal fixation instrument screw extractor Download PDF

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Publication number
CN110226964A
CN110226964A CN201910615345.0A CN201910615345A CN110226964A CN 110226964 A CN110226964 A CN 110226964A CN 201910615345 A CN201910615345 A CN 201910615345A CN 110226964 A CN110226964 A CN 110226964A
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China
Prior art keywords
fixed plate
disassembly
clamping piece
sleeve pipe
adjusting sleeve
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CN201910615345.0A
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Chinese (zh)
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CN110226964B (en
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王海涛
余志平
王晓科
丛海波
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/88Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92Impactors 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)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The present invention relates to Orthopedic medical equipment technical field more particularly to a kind of disassembly skeletal fixation instrument screw extractors.A kind of disassembly skeletal fixation instrument screw extractor, including steady rest, clamping part and the adjusting sleeve pipe being connect with clamping part, clamping part includes clamping piece and the arc firmware for being mounted on clamping piece port, clamping piece includes that in horn-like clamping piece ontology and the screwed pipe of clamping piece tail portion is arranged in, adjusting sleeve pipe is sleeved on the screwed pipe, steady rest includes fixed plate and the bracket for supporting fixed plate, at least two jacks are offered in fixed plate, adjusting sleeve pipe is inserted into the jack, fixed plate is arranged at intervals with adjustable plate, through-hole is offered on adjustable plate, adjusting sleeve pipe is inserted into the through-hole, adjusting sleeve pipe is equipped with regulation handle far from one end of screwed pipe;The regulating part for adjusting distance between the fixed plate and adjustable plate is provided in fixed plate.Multiple screws can be unloaded simultaneously, be greatly improved work efficiency.

Description

A kind of disassembly skeletal fixation instrument screw extractor
Technical field
The present invention relates to Orthopedic medical equipment technical fields more particularly to a kind of disassembly skeletal fixation instrument to be taken out with screw Device.
Background technique
It constantly brings forth new ideas and improves with development, orthopaedic technique with advances in technology.In the clinical practice of bone surgery, warp It is often used steel plate and fracture site is fixed in auxiliary screw.It performed the operation in the installation operation or the disassembly of steel plate of steel plate Due to being got rusty etc. in journey setting angle, firmly uneven or screw, cause during needing to carry out knockout screw not The case where disassembly can be more efficiently completed.Both solved the problems, such as that this clinical process generated, again as far as possible not to screw way Expanded, prevents from causing injury bigger injury to become urgent problem.
In clinical practice, more traditional mode be with pliers or tweezers by the exposed broken nail on the outside of bone or It gets rusty the screw turn-back repeatedly of stripped thread, the process which medical worker lays down screw is time-consuming and quite laborious, removes stage makeup and costume It is uncertain comparable big.
Currently, there are some devices also in actual clinical application to solve the problem above-mentioned, but existing dress The screw that can efficiently dismantle skeletal fixation instrument is set, but its structure is complicated, cumbersome;Although some device structures are more Simply, easy to operate, but efficiency is lower, can not effectively mitigate medical worker in the screw of disassembly skeletal fixation instrument.
Due to generally requiring multiple screws and fixing, if in uninstall process during fixed to skeletal fixation instrument In unloaded one by one, discharge time will be considerably increased, increases time of operation for patient and medical worker all Biggish burden, and existing device single unloading can only be carried out to screw can not be multiple while to carry out efficiency lower.
Summary of the invention
The present invention provides a kind of disassembly skeletal fixation instrument screw extractor, can only be right to solve the existing device of shortage Screw carries out single unloading and can not be multiple while carrying out the lower problem of efficiency.
A kind of disassembly skeletal fixation instrument of the invention adopts the following technical scheme that a kind of disassembly bone with screw extractor Fixed instrument screw extractor, including steady rest, clamping part and the adjusting sleeve pipe being connect with clamping part, the clamping part Including clamping piece and it is mounted on the arc firmware of clamping piece port, the clamping piece includes in horn-like clamping piece sheet Body and the screwed pipe that clamping piece tail portion is arranged in, the adjusting sleeve pipe are sleeved on the screwed pipe, the stabilization Frame includes fixed plate and the bracket for supporting fixed plate, offers at least two jacks, the adjusting in the fixed plate Casing is inserted into the jack, and the fixed plate is arranged at intervals with adjustable plate, offers through-hole on the adjustable plate, The adjusting sleeve pipe is inserted into the through-hole, and the adjusting sleeve pipe is equipped with adjusting hand far from one end of screwed pipe Handle;It is provided in the fixed plate and adjusts regulating part between the fixed plate and adjustable plate.
The clamping piece outer body is provided with screw thread, and the clamping piece ontology uses flexible metal strip.
The regulating part includes regulating part ontology, the rotary shaft being arranged on regulating part ontology and is arranged in the fixation Fixed sleeving on plate, the rotary shaft are inserted into the fixed sleeving.
The regulating part is arranged at intervals with two.
The regulating part ontology is used to hook type metal block.
The regulation handle uses the handle of cross shape.
The beneficial effects of the present invention are: the present apparatus plays a supporting role to whole device by the way that steady rest is arranged, by setting The screw that clamping part dismantles needs is set to dismantle.The adjusting sleeve pipe being arranged in the present apparatus is used to adjust the clamping of clamping part Dynamics.Adjusting sleeve pipe is equipped with regulation handle far from one end of screwed pipe, reduces intensity of exerting oneself convenient for medical worker.Wherein, institute The steady rest stated includes fixed plate and the bracket for supporting fixed plate, offers at least two jacks in the fixed plate, adjusts Section casing is passed through from jack, according to actual screw position, selects corresponding jack, and can be according to the quantity of screw The quantity of selection inserting adjusting sleeve pipe dismantles multiple screws simultaneously.The present apparatus is additionally provided with adjusting at the interval location of fixed plate Plate, the adjusting sleeve pipe also insert adjustable plate while inserting fixed plate, are provided with described in adjusting in the fixed plate The regulating part of distance between fixed plate and adjustable plate.Unloading screw is carried out by regulating part paramedical personnel, reduces medical matters The labor intensity of personnel improves the efficiency of unloading screw.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art To obtain other drawings based on these drawings.
Fig. 1 is a kind of structural representation of the specific embodiment of disassembly skeletal fixation instrument screw extractor of the invention Figure;
Fig. 2 is the structural schematic diagram of clamping part in Fig. 1;
Fig. 3 is the structural schematic diagram of fixed plate in Fig. 1;
Fig. 4 is a kind of structural schematic diagram of the specific embodiment two of disassembly skeletal fixation instrument screw extractor of the invention;
Fig. 5 is a kind of structural schematic diagram of the specific embodiment three of disassembly skeletal fixation instrument screw extractor of the invention;
Fig. 6 is the top view of Fig. 5;
In figure: 1, clamping part;2, clamping piece ontology;21, arc firmware;3, screwed pipe;4, adjusting sleeve pipe;5, fixed plate;6, Steady rest;7, part ontology is saved;71, rotary shaft;8, fixed sleeving;9, adjustable plate;10, regulation handle;11, jack.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
A kind of embodiment one of disassembly skeletal fixation instrument screw extractor of the invention, as shown in Figure 1 to Figure 3, one Kind disassembly skeletal fixation instrument screw extractor, including steady rest 6, clamping part 1 and the adjusting sleeve pipe being connect with clamping part 4, the clamping part 1 includes clamping piece and the arc firmware 21 for being mounted on clamping piece port, the clamping piece include In horn-like clamping piece ontology 2 and the screwed pipe 3 of clamping piece tail portion is set, the adjusting sleeve pipe 4 is sleeved on described Screwed pipe 3 on, the steady rest includes fixed plate 5 and the bracket 6 for supporting fixed plate, is opened up in the fixed plate 5 There are at least two jacks 11, the adjusting sleeve pipe 4 is inserted into the jack 11, and the fixed plate 5 is arranged at intervals with Adjustable plate 9 offers through-hole on the adjustable plate 9, and the adjusting sleeve pipe 4 is inserted into the through-hole, the tune It saves casing 4 and regulation handle 10 is installed far from one end of screwed pipe 3;It is provided in the fixed plate 5 and adjusts the fixed plate 5 The regulating part between adjustable plate 9.
The present apparatus plays a supporting role to whole device by the way that steady rest is arranged, and is dismantled by setting clamping part to needs Screw is dismantled.The adjusting sleeve pipe being arranged in the present apparatus is used to adjust the clamping force of clamping part.Adjusting sleeve pipe is far from spiral shell One end of line pipe is equipped with regulation handle, reduces intensity of exerting oneself convenient for medical worker.
Wherein, the steady rest includes fixed plate and the bracket for supporting fixed plate, is offered in the fixed plate At least two jacks, adjusting sleeve pipe are passed through from jack, according to actual screw position, select corresponding jack, and can To select the quantity of inserting adjusting sleeve pipe to dismantle multiple screws simultaneously according to the quantity of screw.Gap digit of the present apparatus in fixed plate The place of setting is additionally provided with adjustable plate, and the adjusting sleeve pipe also inserts adjustable plate, the fixed plate while inserting fixed plate On be provided with the regulating part for adjusting distance between the fixed plate and adjustable plate.By regulating part, paramedical personnel is unloaded Screw.
Preferably, screw thread is provided on the outside of clamping piece ontology 2, the clamping piece ontology 2 uses flexible metal Item.
Preferably, regulating part includes regulating part ontology 7, the rotary shaft being arranged on regulating part ontology 71 and is arranged in institute The fixed sleeving 8 in fixed plate is stated, the rotary shaft 71 is inserted into the fixed sleeving 8.
Preferably, regulating part is arranged at intervals with two.
Preferably, regulating part ontology 7 is using to hook type metal block.
Preferably, regulation handle 10 uses the handle of cross shape.
The beneficial effects of the present invention are: the present apparatus plays a supporting role to whole device by the way that steady rest is arranged, by setting The screw that clamping part dismantles needs is set to dismantle.The adjusting sleeve pipe being arranged in the present apparatus is used to adjust the clamping of clamping part Dynamics.Adjusting sleeve pipe is equipped with regulation handle far from one end of screwed pipe, reduces intensity of exerting oneself convenient for medical worker.Wherein, institute The steady rest stated includes fixed plate and the bracket for supporting fixed plate, offers at least two jacks in the fixed plate, adjusts Section casing is passed through from jack, according to actual screw position, selects corresponding jack, and can be according to the quantity of screw The quantity of selection inserting adjusting sleeve pipe dismantles multiple screws simultaneously.The present apparatus is additionally provided with adjusting at the interval location of fixed plate Plate, the adjusting sleeve pipe also insert adjustable plate while inserting fixed plate, are provided with described in adjusting in the fixed plate The regulating part of distance between fixed plate and adjustable plate.Unloading screw is carried out by regulating part paramedical personnel.
A kind of embodiment two of disassembly skeletal fixation instrument screw extractor of the invention, as shown in Figure 4: in this technology In scheme, there are two adjusting sleeve pipes 4 for inserting in fixed plate 5, while dismantling to two screws.
In this technology, the axis of fixed sleeving 8 is parallel with the transverse axis of fixed plate 5.Remaining technical solution is same Embodiment one.
A kind of embodiment three of disassembly skeletal fixation instrument screw extractor of the invention, as shown in Figure 5 and Figure 6: this In technical solution, the axis of fixed sleeving 8 is parallel with the vertical axis of fixed plate 5.The same embodiment of remaining technical solution One.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (6)

1. a kind of disassembly skeletal fixation instrument screw extractor, it is characterised in that: including steady rest, clamping part and with clamping The adjusting sleeve pipe of portion's connection, the clamping part includes clamping piece and the arc firmware for being mounted on clamping piece port, described Clamping piece include that in horn-like clamping piece ontology and the screwed pipe of clamping piece tail portion is set, the adjusting set pipe sleeve On the screwed pipe, the steady rest includes fixed plate and the bracket for supporting fixed plate, in the fixed plate At least two jacks are offered, the adjusting sleeve pipe is inserted into the jack, and the fixed plate is arranged at intervals with tune Plate is saved, through-hole is offered on the adjustable plate, the adjusting sleeve pipe is inserted into the through-hole, the adjusting sleeve pipe One end far from screwed pipe is equipped with regulation handle;It is provided with and is adjusted between the fixed plate and adjustable plate in the fixed plate The regulating part of distance.
2. a kind of disassembly skeletal fixation instrument screw extractor according to claim 1, it is characterised in that: the folder Gripping member outer body is provided with screw thread, and the clamping piece ontology uses flexible metal strip.
3. a kind of disassembly skeletal fixation instrument screw extractor according to claim 1, it is characterised in that: the adjusting Part includes regulating part ontology, the rotary shaft being arranged on regulating part ontology and the fixed sleeving being arranged in the fixed plate, The rotary shaft is inserted into the fixed sleeving.
4. a kind of disassembly skeletal fixation instrument screw extractor according to claim 3, it is characterised in that: the adjusting Part is arranged at intervals with two.
5. a kind of disassembly skeletal fixation instrument screw extractor according to claim 4, it is characterised in that: the tune Part ontology is saved to use to hook type metal block.
6. a kind of disassembly skeletal fixation instrument screw extractor according to claim 1, it is characterised in that: the tune Save the handle that handle uses cross shape.
CN201910615345.0A 2019-07-09 2019-07-09 Screw extractor for disassembling bone fixing instrument Active CN110226964B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910615345.0A CN110226964B (en) 2019-07-09 2019-07-09 Screw extractor for disassembling bone fixing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910615345.0A CN110226964B (en) 2019-07-09 2019-07-09 Screw extractor for disassembling bone fixing instrument

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Publication Number Publication Date
CN110226964A true CN110226964A (en) 2019-09-13
CN110226964B CN110226964B (en) 2020-09-15

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090187220A1 (en) * 2008-01-17 2009-07-23 Hamada James S Pedicle dart system
US20100087831A1 (en) * 2008-10-07 2010-04-08 Donald Marx Knee replacement nail remover
CN106511019A (en) * 2016-12-14 2017-03-22 合肥工业大学 Power-assisting device for incarcerated intramedullary nail removal operation
CN106624757A (en) * 2016-12-29 2017-05-10 青岛海泰新光科技股份有限公司 Device capable of simultaneously mounting and adjusting multiple screws
CN206198034U (en) * 2016-07-12 2017-05-31 南京卓策知识产权服务有限公司 A kind of nail taking out apparatus in orthopaedics
CN206333960U (en) * 2016-10-13 2017-07-18 赵福亭 A kind of extractor for bone-pin
CN207152646U (en) * 2017-03-08 2018-03-30 孙正明 A kind of safe and reliable Orthopeadic Surgery device for fetching nail
CN108703801A (en) * 2018-06-15 2018-10-26 中国人民解放军陆军军医大学第附属医院 It is a kind of percutaneously to position the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method
CN208741130U (en) * 2018-01-19 2019-04-16 叶茂 A kind of orthopaedics quickly positions device for fetching nail

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090187220A1 (en) * 2008-01-17 2009-07-23 Hamada James S Pedicle dart system
US20100087831A1 (en) * 2008-10-07 2010-04-08 Donald Marx Knee replacement nail remover
CN206198034U (en) * 2016-07-12 2017-05-31 南京卓策知识产权服务有限公司 A kind of nail taking out apparatus in orthopaedics
CN206333960U (en) * 2016-10-13 2017-07-18 赵福亭 A kind of extractor for bone-pin
CN106511019A (en) * 2016-12-14 2017-03-22 合肥工业大学 Power-assisting device for incarcerated intramedullary nail removal operation
CN106624757A (en) * 2016-12-29 2017-05-10 青岛海泰新光科技股份有限公司 Device capable of simultaneously mounting and adjusting multiple screws
CN207152646U (en) * 2017-03-08 2018-03-30 孙正明 A kind of safe and reliable Orthopeadic Surgery device for fetching nail
CN208741130U (en) * 2018-01-19 2019-04-16 叶茂 A kind of orthopaedics quickly positions device for fetching nail
CN108703801A (en) * 2018-06-15 2018-10-26 中国人民解放军陆军军医大学第附属医院 It is a kind of percutaneously to position the minimally invasive internal fixation steel plate screw withdrawing device of orthopaedics and method

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