CN104997557A - Two-end-fixed rectangular frame-type sighting device - Google Patents
Two-end-fixed rectangular frame-type sighting device Download PDFInfo
- Publication number
- CN104997557A CN104997557A CN201510301402.XA CN201510301402A CN104997557A CN 104997557 A CN104997557 A CN 104997557A CN 201510301402 A CN201510301402 A CN 201510301402A CN 104997557 A CN104997557 A CN 104997557A
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- far
- sleeve pipe
- sight
- fixed frame
- fixed
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
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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
- A61B17/90—Guides therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a two-end-fixed rectangular frame-type sighting device. The sighting device comprises a near-end fixing frame, an outer cantilever and an intramedullary nail. The upper end of the near-end fixing frame is connected to the near end of the outer cantilever, and the lower end of the near-end fixing frame is connected to the near end of the intramedullary nail. The sighting device also comprises a far-end fixing frame, a far-end sliding sleeve and a locator pin. The near end of the far-end fixing frame is connected to the far end of the outer cantilever. The far-end sliding sleeve is arranged at the lower end of the far-end fixing frame. The locator pin penetrates a near-end intramedullary nail connecting and fixing sleeve, the central hollow portion of the intramedullary nail, and the far-end sliding sleeve. The sighting device is simple is structure and low in manufacturing cost, is convenient to operate, and is suitable for popularizing on a large scale.
Description
Technical field
The present invention relates to a kind of two ends and fix rectangular frame-sight, belong to bone surgery set articles for use field.
Background technology
The patient of extremity fracture gets more and more, wherein most of patients need operative's internal fixation treatment.Surgical menopause treatment fracture just be unable to do without the implants such as inner fixer.Conventional material has steel plate and intramedullary pin.Concerning long bone fracture, adopt Interal fixation to belong to eccentricity to fix, namely fixture departs from self stress axis of long bone, belong to a kind of fixed form of instability, its fixation is similar to exterior fixation bracket, Interal fixation relies on screw to put on the pressure of steel plate, makes to produce between steel plate and skeleton certain frictional force to reach fixation.This art formula also often needs too much to peel off periosteal tissue.And the nutrition of long bone depends on adventitia in bone, particularly periosteum.Because adopt the patient of the postoperative bone does not connect of Interal fixation, at dismounting steel plate when using Intramedullary nailing and bone grafting instead, although intramedullary pin is inserted will destroy more perimyelis, the perimyelis destroyed when especially expanding marrow is more, the healing that Postoperative Bone folding part in the same old way can be good.The healing of visible periosteum to fracture is extremely important.Peel off too much periosteum and will destroy the blood confession of fracture local, have a strong impact on for quick healing of bone fracture causes, the advantage of visible intramedullary pin Medullary fixation is self-evident.It is fixing that Medullary fixation belongs to central authorities, and the axis that intramedullary pin inserts its place rear is approximate overlapping with long bone axis, and stress loading direction is consistent, and fractures side shearing action drops to minimum, belongs to the good methods of internal fixation of stability.Although this fixed form has certain advantage, also there is its weak point.Be mainly manifested in locking position and be positioned at intramedullary pin two ends, the floatability that far-end aims at junction point is comparatively large, and far-end locking is comparatively difficult, loses interlocking phenomenon and occurs more.Because the outer cantilever of sight has certain elasticity when intramedullary pin is inserted, easily move to limbs back and forth or left and right, particularly displacement is the main cause causing far-end losing lock forwards, backwards.In addition, femur marrow interior shape is not quite similar, and mating with intramedullary pin has different, and after intramedullary pin is inserted, rivet nut is out of shape because of elasticity.Only have a mere contact junction point at intramedullary pin near-end between pole bracket sight and intramedullary pin, this point is comparatively weak, is the main portions that the outer suspension of sight produces elastic displacement.There are many orthopaedics scholars to solve the problem, carry out unremitting effort, develop multiple auxiliary sighting device.As being with ultrasonic mediation device, magnetic force to mediate device and infrared ray mediation device etc., although these devices also solve some practical problems, but there is certain losing lock rate.And the sight non-refractory sterilization had, easily cause bacteriological infection; What have can only single use, not only adds the cost of medical treatment but also bring unnecessary financial burden to patient.For this reason, inventor develops a kind of novel long bone fracture Medullary fixation sight device (through type rectangular frame-sight).Cardinal principle utilizes parallel lines to determine the solid geometry principle of plane, makes all and any in plane two the crossing mathematical theories of straight line all in this plane.Design sight and intramedullary pin have two place's contact points, allow them form plane be in metastable state, eliminate the elastic foundation effect of the outer suspension of sight as far as possible, make the drill bit of suspension sight hole outside sight and screw accurately can enter intramedullary pin two ends locking nail smoothly, reach firmly interlocking fixed function.
Summary of the invention
The present invention is directed to the problems referred to above, provide a kind of two ends and fix rectangular frame-sight, object is: precisely can be completed by the present invention and on skeleton, carry out the boring of far and near pinning put tack operation operation.
Technical solution of the present invention:
Rectangular frame-sight is fixed at a kind of two ends, comprise near-end fixed frame, outer cantilever and intramedullary pin, described near-end fixed frame upper end is connected with outer cantilever near-end, near-end fixed frame lower end is connected with intramedullary pin near-end, it is characterized in that: described sight also comprises far-end fixed frame, far-end slippage sleeve pipe and positioning needle, the near-end of described far-end fixed frame is connected with outer cantilever far-end, the far-end of far-end fixed frame is provided with far-end slippage sleeve pipe, described positioning needle is connected and fixed sleeve pipe through near-end intramedullary pin, the central hollow portion of intramedullary pin and far-end slippage sleeve pipe.
As the preferred version of previous step, the upper end of described far-end fixed frame is connected with connector, described connector is provided with connector proximally-located projection and connector far-end positioning convex.
As the preferred version of previous step, the protruding outer cantilever detent with being arranged on outer cantilever far-end of described connector proximally-located cooperatively interacts.
As the preferred version of previous step, described connector far-end positioning convex cooperatively interacts with the far-end fixed frame front groove be arranged on far-end fixed frame or far-end fixed frame negative grooves.
As the preferred version of previous step, described connector and outer cantilever far-end are provided with the first identical screw, and connector is connected by the first bolted in screw-in first screw with outer cantilever far-end.
As the preferred version of previous step, described first screw is arranged on connector proximally-located projection and connector proximally-located groove.
As the preferred version of previous step, the far-end of described far-end fixed frame is provided with a through hole, is provided with far-end slippage sleeve pipe in described through hole.
As the preferred version of previous step, the outer wall of the far-end of described far-end fixed frame is provided with three screw vertical with through hole, is provided with the 3rd bolt in described 3rd screw, and far-end slippage sleeve pipe is fastened in through hole by described 3rd bolt.
As the preferred version of previous step, described far-end slippage sleeve pipe one end is provided with far-end slippage sleeve pipe back-up ring, and one end is designed to coniform.
As the preferred version of previous step, described far-end slippage sleeve pipe back-up ring or far-end slippage sleeve pipe are provided with far-end slippage sleeve pipe gripping member.
Beneficial effect of the present invention:
1, the present invention is by increasing far-end fixed frame and far-end slippage sleeve pipe, and present invention is designed to be a rectangular frame by positioning needle, utilize rectangular frame upper and lower, parallel and the principle in same plane in left and right, sight hole on intramedullary pin and outer cantilever is alignd in advance, even if intramedullary needle also can be holed accurately in bone condyle intracavity portion on backbone like this, solve existing all technology first by carrying out in sagittal plane direction the trouble positioned by intramedullary needle of holing, improve locking efficiency, reduce and may bring the risk infecting losing lock to patient's wound because operating time is long, 2, intramedullary pin end can be placed in condyle under nest cortex by structure of the present invention, inserts in femur marrow spongy bone, after screwing in pinning, reaches the fixed effect that " nailing " is the same, removes from and put all limbs complication of following closely and bringing through knee joint, structure of the present invention is simple, and easy to operate, cost of manufacture is lower, suitable large-scale promotion.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present invention.
Fig. 2 is installation forming structural representation of the present invention.
Fig. 3 is the outer cantilever far-end of the present invention and connector conjunctive decomposition plan structure schematic diagram.
Fig. 4 is far-end slippage sleeve structure schematic diagram of the present invention.
Fig. 5 is the A place structure for amplifying schematic diagram of Fig. 1 and Fig. 2.
Fig. 6 is intra medullary nail far-end part-structure schematic diagram of the present invention.
In figure: 1, near-end fixed frame, 2, Intramedullary nailing connector, 3, intramedullary pin, 4, near-end intramedullary pin is connected and fixed sleeve pipe, 5, positioning needle, 6, outer cantilever, 7, far-end fixed frame, 8, connector, 9, far-end slippage sleeve pipe back-up ring, 10, location fixed leg, 11, location fixing hole, 12, first screw, 13, near-end fixed frame locking nail hole, 14, far-end slippage sleeve pipe gripping member, 15, first bolt, 16, far-end slippage sleeve pipe, 17, connector proximally-located is protruding, 18, connector proximally-located groove, 19, second bolt, 20, second screw, 21, 3rd screw, 22, 3rd bolt, 23, connector locating distal is protruding, 24, far-end fixed frame front groove, 25, far-end fixed frame negative grooves, 26, outer cantilever locking nail hole, 27, the nearly locking nail hole of intramedullary pin, 28, intramedullary pin locking nail hole far away.
Detailed description of the invention
Following institute drawings attached is only convenient to explain basic condition of the present invention, in accompanying drawing by form the component count of preferred embodiment, position, relation and size extension will have illustrated by, belong to industry technical ability at the change read and be correlated with after understanding situation of the present invention.In addition, in reading and after understanding situation of the present invention, specific strength, weight, intensity and the accurate dimension of similar requirement and the change of dimension scale is coordinated also to belong to industry technical ability.
Identical or similar assembly is indicated in different figures with identical label; Please understand in addition such as " first ", " second " in literary composition, " the 3rd ", " on ", D score, "front", "rear", " interior ", " outward ", " end ", " portion ", " section ", " width ", " thickness ", " district " etc. and similar term to be only convenient in observer's reference diagram structure and only to describe the present invention for helping.Such as, the first screw of the present invention, the second screw and the 3rd screw can design same size, and the first bolt, the second bolt and the 3rd bolt also can design same size.
As shown in Figures 1 to 5, rectangular frame-sight is fixed at a kind of two ends, comprise near-end fixed frame 1, outer cantilever 6 and intramedullary pin 3, described near-end fixed frame upper end is connected with outer cantilever near-end, near-end fixed frame lower end is connected with intramedullary pin near-end, described sight also comprises far-end fixed frame 7, far-end slippage sleeve pipe 16 and positioning needle 5, the near-end of described far-end fixed frame is connected with outer cantilever far-end, the far-end of far-end fixed frame is provided with far-end slippage sleeve pipe, described positioning needle is connected and fixed sleeve pipe through near-end intramedullary pin, the central hollow portion of intramedullary pin and far-end slippage sleeve pipe.
The upper end of described far-end fixed frame is connected with connector 8, described connector is provided with connector proximally-located protruding 17 and connector far-end positioning convex 23.
The protruding outer cantilever detent 18 with being arranged on outer cantilever far-end of described connector proximally-located cooperatively interacts.
Described connector distal end positioning convex cooperatively interacts with the far-end fixed frame front groove 24 be arranged on far-end fixed frame or far-end fixed frame negative grooves 25.
Described connector and outer cantilever far-end are provided with the first identical screw 12, and connector and outer cantilever far-end are fastenedly connected by the first bolt 15 in screw-in first screw.
Described first screw is arranged on connector proximally-located projection and connector proximally-located groove.
The far-end of described far-end fixed frame is provided with a through hole, is provided with far-end slippage sleeve pipe in described through hole.
The outer wall of the far-end of described far-end fixed frame is provided with three screw 21 vertical with through hole, is provided with the 3rd bolt 22 in described 3rd screw, and far-end slippage sleeve pipe is fastened in through hole by described 3rd bolt.
Described far-end slippage sleeve pipe one end is provided with far-end slippage sleeve pipe back-up ring 9, and one end is designed to coniform.
Described far-end slippage sleeve pipe back-up ring or far-end slippage sleeve pipe are provided with far-end slippage sleeve pipe gripping member 14.
Described near-end fixed frame upper end is provided with fixed leg 10 lower end, location and is provided with the Intramedullary nailing connector 2 with intramedullary pin proximal anastomosis, described intramedullary pin one end inwall is provided with female thread, described female thread and be arranged on the external screw thread that near-end intramedullary pin is connected and fixed sleeve pipe 4 one end and cooperatively interact; Described outer cantilever is provided with multiple and that location fixed leg is identical location fixing hole 11, the second screw 20 is provided with between the location fixed leg of described near-end fixed frame upper end, also be provided with the second screw between the fixing hole of described location, described outer cantilever is fastenedly connected proximally by the second bolt 19 in screw-in second screw and described near-end fixed frame upper end.
Intramedullary needle two ends of the present invention and outer cantilever two ends are provided with near-end fixed frame locking nail hole 13.Nearly locking nail hole be prior art for the ease of carry out holing on bone and by pinning by Intramedullary nailing on bone.
Concrete installation and using method:
As shown in Figures 1 to 5, first the near-end of intramedullary pin of the present invention and Intramedullary nailing connector are pressed close to, then being connected and fixed sleeve pipe by near-end intramedullary pin is fastened on Intramedullary nailing connector by intramedullary pin, in near end of thighbone perforate, then intramedullary pin is inserted pulp cavity, again the upper end of the near-end of outer cantilever and near-end fixed frame is connected, the far-end of outer cantilever and the upper end of far-end fixed frame connect, then far-end slippage sleeve pipe is inserted in the through hole of far-end fixed frame lower end, then positioning needle is connected and fixed sleeve pipe through near-end intramedullary pin successively, Intramedullary nailing connector, intramedullary pin and far-end slippage sleeve pipe, then drill bit is inserted near-end fixed frame locking nail hole, outer cantilever locking nail hole 26, the nearly locking nail hole 27 of intramedullary pin, hole in intramedullary pin locking nail hole 28 far away, when drill bit gets into positioning needle, extract positioning needle out to continue drill-through for drill bit femur contralateral cortex.
Basic instruction of the present invention is illustrated, for the people with the usual technical ability in this area, many extensions and change will be aobvious and Yi Zhizhe, as shown in Figure 6, the length L of the through hole of intra medullary nail far-end inside of the present invention must be provided with at least 4cm elongated cylindrical, thus can ensure that positioning needle can accurately be located.The present invention disclosed due to description can not depart from the present invention's spirit or other particular form of general characteristics be implemented, and some forms of these particular forms are noted, so the embodiment that description discloses should be considered as illustrating and unrestricted.Scope of the present invention is defined by appended claim, instead of defined by above-mentioned explanation, and the institute for the impartial meaning and scope that fall into claim changes and will be included within its scope.
To sum up, the present invention produces a desired effect.
Claims (10)
1. rectangular frame-sight is fixed at two ends, comprise near-end fixed frame, outer cantilever and intramedullary pin, described near-end fixed frame upper end is connected with outer cantilever near-end, near-end fixed frame lower end is connected with intramedullary pin near-end, it is characterized in that: described sight also comprises far-end fixed frame, far-end slippage sleeve pipe and positioning needle, the near-end of described far-end fixed frame is connected with outer cantilever far-end, the far-end of far-end fixed frame is provided with far-end slippage sleeve pipe, described positioning needle is connected and fixed sleeve pipe through near-end intramedullary pin, the central hollow portion of intramedullary pin and far-end slippage sleeve pipe.
2. rectangular frame-sight is fixed at a kind of two ends according to claim 1, it is characterized in that: the upper end of described far-end fixed frame is connected with connector, described connector is provided with connector proximally-located projection and connector far-end positioning convex.
3. rectangular frame-sight is fixed at a kind of two ends according to claim 2, it is characterized in that: the protruding outer cantilever detent with being arranged on outer cantilever far-end of described connector proximally-located cooperatively interacts.
4. rectangular frame-sight is fixed at a kind of two ends according to claim 3, it is characterized in that: described connector far-end positioning convex cooperatively interacts with the far-end fixed frame front groove be arranged on far-end fixed frame or far-end fixed frame negative grooves.
5. rectangular frame-sight is fixed at a kind of two ends according to claim 4, it is characterized in that: described connector and outer cantilever far-end are provided with the first identical screw, and connector is connected by the first bolted in screw-in first screw with outer cantilever far-end.
6. rectangular frame-sight is fixed at a kind of two ends according to claim 5, it is characterized in that: described first screw is arranged on connector proximally-located projection and connector proximally-located groove.
7. rectangular frame-sight is fixed at a kind of two ends according to claim 1, it is characterized in that: the far-end of described far-end fixed frame is provided with a through hole, is provided with far-end slippage sleeve pipe in described through hole.
8. rectangular frame-sight is fixed at a kind of two ends according to claim 7, it is characterized in that: the outer wall of the far-end of described far-end fixed frame is provided with three screw vertical with through hole, be provided with the 3rd bolt in described 3rd screw, far-end slippage sleeve pipe is fastened in through hole by described 3rd bolt.
9. rectangular frame-sight is fixed at a kind of two ends according to claim 8, it is characterized in that: described far-end slippage sleeve pipe one end is provided with far-end slippage sleeve pipe back-up ring, and one end is designed to coniform.
10. rectangular frame-sight is fixed at a kind of two ends according to claim 9, it is characterized in that: described far-end slippage sleeve pipe back-up ring or far-end slippage sleeve pipe are provided with far-end slippage sleeve pipe gripping member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301402.XA CN104997557B (en) | 2015-06-04 | 2015-06-04 | Rectangular frame sight is fixed at a kind of two ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301402.XA CN104997557B (en) | 2015-06-04 | 2015-06-04 | Rectangular frame sight is fixed at a kind of two ends |
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| Publication Number | Publication Date |
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| CN104997557A true CN104997557A (en) | 2015-10-28 |
| CN104997557B CN104997557B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510301402.XA Active CN104997557B (en) | 2015-06-04 | 2015-06-04 | Rectangular frame sight is fixed at a kind of two ends |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822704A (en) * | 2017-11-24 | 2018-03-23 | 苏州市康力骨科器械有限公司 | The multi-direction adjustable fixer of near-end |
| CN110215271A (en) * | 2019-06-10 | 2019-09-10 | 闫峰 | Ultrasonic pinning aims at auxiliary device in a kind of orthopaedics marrow |
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| US20090326541A1 (en) * | 2008-06-30 | 2009-12-31 | Depuy Products, Inc. | Targeting Apparatus for Use in a Medical Procedure |
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| CN203861335U (en) * | 2014-05-13 | 2014-10-08 | 广州中医药大学第一附属医院 | Novel simple and convenient calcaneal sustentaculum talus aiming guider |
| CN204708974U (en) * | 2015-06-04 | 2015-10-21 | 杨春 | Rectangular frame-sight is fixed at a kind of two ends |
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2015
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| RU2252723C1 (en) * | 2004-07-07 | 2005-05-27 | Государственное образовательное учреждение высшего профессионального образования Башкирский государственный медицинский университет Министерства здравоохранения Российской Федерации (ГОУ ВПО БГМУ Минздрава России) | Distal locking method for fixing cannulated rods in performing intramedullary osteosynthesis of long tubular bones |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822704A (en) * | 2017-11-24 | 2018-03-23 | 苏州市康力骨科器械有限公司 | The multi-direction adjustable fixer of near-end |
| CN107822704B (en) * | 2017-11-24 | 2024-03-22 | 苏州市康力骨科器械有限公司 | Near-end multidirectional adjustable fixing device |
| CN110215271A (en) * | 2019-06-10 | 2019-09-10 | 闫峰 | Ultrasonic pinning aims at auxiliary device in a kind of orthopaedics marrow |
| CN110215271B (en) * | 2019-06-10 | 2022-02-22 | 闫峰 | Auxiliary device for aiming of intramedullary ultrasonic locking nail for orthopedics department |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104997557B (en) | 2017-08-25 |
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