CN105852950B - A kind of hollow screw structure and its application method - Google Patents
A kind of hollow screw structure and its application method Download PDFInfo
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- CN105852950B CN105852950B CN201610241145.XA CN201610241145A CN105852950B CN 105852950 B CN105852950 B CN 105852950B CN 201610241145 A CN201610241145 A CN 201610241145A CN 105852950 B CN105852950 B CN 105852950B
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- screw
- spiral
- hollow screw
- latasuture
- hollow
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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
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
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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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
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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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
-
- 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
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
-
- 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
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8825—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details
-
- 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)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
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- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
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- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of hollow screw structures, including hollow screw ontology, syringe and closing nut, the application method of above-mentioned hollow screw structure is also provided, the hollow screw structure of the present invention is fixedly secured by the way that the external screw thread of injector tip is chimeric with spiral latasuture hollow screw proximal end internal thread, after injecting the injection types curing materials such as bone cement, it can be uniformly discharged around screw from the spiral latasuture and top end opening of hollow screw, and it is filled in the fixation of surrounding, the hold of screw can be increased, improve fixing intensity, improve local fixed environment, reduce the generation of postoperative complications.It can prevent the liquid of injection from being overflowed from rear portion after rear threads are chimeric, quantity is injected convenient for control, positive traveling spiral sides slit at bone cement sheath can avoid screw loosening fall back, and the hollow-core construction of screw is conducive to first use needle location, directly screw is sleeved on fine needle after position suitable and is screwed into, it is easy to operation.
Description
Technical field
The invention belongs to the field of medical instrument technology, specifically, being related to a kind of hollow screw structure and its application method.
Background technology
Clinical treatment fracture, which mostly uses steel plate screw or screw is used alone, at present fixes, in treatment fracture of neck of femur and vertebra
When body compression fracture, apply bone screws or pedicle screw to be treated more.The patient of normal sclerotin can be provided relatively
Strong fixing intensity, but for osteoporosis and other bone matter caused by metabolic disease, dystrophia etc.
Amount declines, and when bone density reduces, then plain screw fixation is unable to reach satisfied fixed effect.It is crisp since patient's bone amount is reduced
Property increase, plain screw can not effectively hold sufficient amount of bone trabecula and maintain fixing intensity, thus often occur screw exit,
It loosens, fixed failure, the complication such as sclerotin collapses, bone delay in healing even bone nonunion.
Invention content
In order to overcome above-mentioned existing bone screws to be unable to reach effective fixing intensity in the bad patient of fix bone quality
Problem, it includes with spiral latasuture that the present invention, which provides a kind of hollow screw structure and its application method, the hollow screw structure,
Hollow screw and the externally threaded syringe of distally can be reached using this hollow screw and syringe with spiral latasuture in screw
To after its expection fixed position, the injection types curing materials such as bone cement are injected into screw using syringe, pass through spiral shell
It is overflowed in rotation latasuture and ailhead hole, fixed effect can be enhanced after solidification.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme：
A kind of hollow screw structure, including,
Hollow screw ontology has the centre gangway of direction perforation along its longitudinal axis, the inner wall proximal end of the centre gangway
Equipped with internal thread, and the spiral latasuture that setting is penetrated through with the centre gangway on the screw body side；
Syringe, it is internal to cure material equipped with injection type for screwing in the centre gangway of the hollow screw ontology
Material, distal end carry external screw thread, are matched with the centre gangway inner wall proximal end internal thread；
Nut is closed, for hollow screw ontology described in latch enclosure.
In the above-mentioned technical proposal of the present invention, the spiral latasuture is the positive spiral shell for being parallel to screw body y direction
Revolve shape.
Wherein, the spiral latasuture is spiral shape continuously or discontinuously, i.e. spiral latasuture can be continuous, and can also be
It is discontinuous.
Wherein, the total length of the spiral latasuture accounts for the 1/4~1/3 of screw body total length.
In the above-mentioned technical proposal of the present invention, the syringe is metal or plastic construction comprising housing and inner core,
The end of the inner core, which is equipped with, promotes handle that can arrange the curing materials being wherein equipped with from topped hole for pushing its inner core
Go out, the housing tail end is equipped with auxiliary handle, the completion of auxiliary propulsion action.
Wherein, the injection type curing materials are bone cement.
The application method of above-mentioned hollow screw structure, includes the following steps：
In use, being first threaded into fixation with the fine needle across screw body centre gangway, determine that fine needle position is closed
After suitable, fine needle is inserted in the centre gangway of screw body and is screwed into screw body, screw body screwed in pre- to fixation
Behind phase position, reconciliation bone cement is added in syringe, and syringe is screwed in screw body proximal end, is allowed to and screw body proximal end
Internal thread is mutually fitted and fixed with, and pushes the inner core of syringe, bone cement is injected in the centre gangway of screw body, while from screw
It overflows, is filled in around screw body in the spiral latasuture of ontology and open top, syringe is removed after bone cement solidification, in spiral shell
Nail body proximal end is screwed into closing nut, and the external screw thread for making closing nut is mutually fitted and fixed with the internal thread of screw body.
The screw of the present invention is hollow structure along its longitudinal axis, is provided with transport screw shape along its longitudinal axis in its this body side surface and walks
Capable spiral latasuture, spiral latasuture length account for the 1/4~1/3 of screw body total length, can continuously or discontinuously property.Screw is close
End part inner wall has internal thread, can be mutually chimeric with the external screw thread of the externally threaded injector tip part of distally, passes through syringe
After injecting the injection types hardened materials such as bone cement into hollow screw, it can be overflowed from screw spiral latasuture and top end opening,
It is filled in around screw and in fixation, fixing intensity can be increased, convenient for control injection quantity, hollow-core construction is convenient for implantation
Operating process, positive traveling spiral sides slit at bone cement sheath can avoid screw loosening fall back.Close nut confining zone spiral
The hollow screw proximal end of latasuture can prevent soft tissue from growing into inside screw.
Compared with prior art, the advantages and positive effects of the present invention are：
The hollow screw structure of the present invention is by the external screw thread of injector tip and in spiral latasuture hollow screw proximal end
Screw thread is chimeric and is fixedly secured, after the injection types curing materials such as injection bone cement, can from the spiral latasuture of hollow screw and
Top end opening is uniformly discharged around screw, and is filled in the fixation of surrounding, can increase the hold of screw, improves solid
Determine intensity, improves local fixed environment, reduce the generation of postoperative complications.The liquid of injection can be prevented after rear threads are chimeric certainly
Rear portion overflow, convenient for control injection quantity, positive traveling spiral sides slit at bone cement sheath can avoid screw loosening fall back, and
And the hollow-core construction of screw is conducive to first use needle location, and directly screw is sleeved on fine needle after position suitable and is screwed into, is convenient for
Operation.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the overall structure half sectional view of hollow screw construction embodiment use state of the present invention；
Fig. 2 is the overall structure diagram of screw body；
Fig. 3 is the vertical section schematic diagram of screw body；
Fig. 4 is the structural schematic diagram for closing nut.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and examples pair
The present invention is described in further detail.It should be appreciated that embodiment described herein is only used to explain the present invention, and do not have to
It is of the invention in limiting.
In the description of the present invention, it is to be understood that, term " proximal end ", " distal end ", " longitudinal direction ", " center ", "inner",
The orientation or positional relationship of the instructions such as "outside", "upper", "lower", " parallel ", "top" is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The embodiment of the present invention is unable to reach for existing bone screws in the bad patient of fix bone quality effectively fixed strong
The problem of spending proposes that a kind of hollow screw structure, the screw body have hollow and spiral latasuture are arranged in its side so that logical
Cross syringe injection bone cement can be distributed in screw body all by the way that the opening of spiral latasuture and screw head be discharged
It encloses, increases fixing intensity.Specifically,
With reference to shown in figure 1-4, which is a kind of hollow screw structure, including hollow screw ontology 10, syringe 20,
Close nut 30, wherein
Hollow screw ontology 10 has the centre gangway 11 of direction perforation along its longitudinal axis, the inner wall of centre gangway 11 close
End is equipped with internal thread 12, and the spiral latasuture 13 that setting is penetrated through with centre gangway 11 on 10 side of screw body, the screw sheet
Body 10 itself has external screw thread, and convenient for screwing in fixation, internal centre gangway 11 is that up and down, lower end also has
There is opening 14；Spiral latasuture 13 is also perforation with centre gangway 11, and spiral latasuture 13 is to be parallel to 10 longitudinal axis side of screw body
To continuous transport screw shape.Its total length accounts for the 1/3 of 10 total length of screw body.
Certainly, spiral latasuture 13 can be continuous, and be can also be discontinuous, determined according to actual processing complexity
It is fixed.
Syringe 20, it is internal to cure equipped with injection type for screwing in the centre gangway 11 of hollow screw ontology 10
Material, wherein the injection type curing materials generally use bone cement, 20 distal end of syringe carry external screw thread 25, logical with center
11 inner wall proximal end internal thread 12 of road matches；The syringe 20 is plastic construction comprising housing 21 and inner core 22, inner core 22
End, which is equipped with, promotes handle 23 curing materials being wherein equipped with can be discharged from topped hole, housing for pushing its inner core 22
21 tail ends are equipped with auxiliary handle 24, the completion of auxiliary propulsion action.
Nut 30 is closed, is used for latch enclosure hollow screw ontology 10, which has external screw thread 31, with center
11 inner wall proximal end internal thread 12 of channel matches.
The application method of above-mentioned hollow screw structure, includes the following steps：
In use, being first threaded into fixation with the fine needle across 10 centre gangway 11 of screw body, fine needle position is determined
After setting properly, fine needle is inserted in the centre gangway 11 of screw body 10 and is screwed into screw body, screw body 10 is screwed in quilt
After the desired location of fixture, reconciliation bone cement is added in syringe 20, and syringe 20 is screwed in 10 proximal end of screw body, is made
Be fitted and fixed with 10 proximal end internal thread of screw body, 12 phase, push syringe 20 inner core 22, by bone cement inject screw sheet
It in the centre gangway 11 of body 10, while being overflowed from the spiral latasuture 13 of screw body 10 and open top 14, is filled in screw
Around ontology 10, syringe 20 is removed after bone cement solidification, closing nut 30 is screwed into 10 proximal end of screw body, makes closing nut
30 external screw thread 31 is mutually fitted and fixed with the internal thread 12 of screw body 10.
The presence of spiral latasuture 13 makes the centre gangway 11 of screw body 10 be communicated with the external world, and screw body 10 has itself
External screw thread, the internal thread 12 on 10 proximal end inner wall of screw body are mutually chimeric with 20 distal end external screw thread 25 of syringe.
After the external screw thread 25 of 20 distal end of syringe is chimeric with 10 proximal end internal thread 12 of screw body, injection bone cement etc. can
Injecting type curing materials can be discharged from the spiral latasuture 13 and top end opening 14 of screw body 10 to be distributed in screw body
Around 10, fixing intensity can be increased after solidification, the bone cement sheath that transport screw latasuture is formed can avoid screw loosening and fall back.It uses
Closing nut 30 is screwed into 10 proximal end of screw body, makes 12 phase of external screw thread 31 and 10 proximal end internal thread of screw body of closing nut 30
It is fitted and fixed with, can prevent surrounding soft tissue from growing into inside screw body 10.
Certainly, it finally should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than limits it
System；Although the present invention is described in detail referring to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its
Still can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equal
It replaces；And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (3)
1. a kind of hollow screw structure, it is characterised in that：Including,
There is hollow screw ontology the centre gangway of direction perforation along its longitudinal axis, the inner wall proximal end of the centre gangway to be equipped with
Internal thread, and the spiral latasuture that setting is penetrated through with the centre gangway on the screw body side；
Syringe, it is internal that injection type curing materials are housed for screwing in the centre gangway of the hollow screw ontology,
Distal end carries external screw thread, is matched with the centre gangway inner wall proximal end internal thread；
Nut is closed, for hollow screw ontology described in latch enclosure；
The spiral latasuture is the transport screw shape for being parallel to screw body y direction；
The spiral latasuture is spiral shape continuously or discontinuously；
The total length of the spiral latasuture accounts for the 1/4~1/3 of screw body total length.
2. hollow screw structure according to claim 1, it is characterised in that：The syringe be metal or plastic construction,
Including housing and inner core, the end of the inner core, which is equipped with, promotes handle, and the housing tail end is equipped with auxiliary handle.
3. hollow screw structure according to claim 1, it is characterised in that：The injection type curing materials are bone cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610241145.XA CN105852950B (en) | 2016-04-19 | 2016-04-19 | A kind of hollow screw structure and its application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610241145.XA CN105852950B (en) | 2016-04-19 | 2016-04-19 | A kind of hollow screw structure and its application method |
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| Publication Number | Publication Date |
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| CN105852950A CN105852950A (en) | 2016-08-17 |
| CN105852950B true CN105852950B (en) | 2018-09-14 |
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| CN201610241145.XA Active CN105852950B (en) | 2016-04-19 | 2016-04-19 | A kind of hollow screw structure and its application method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431587B (en) * | 2018-12-12 | 2020-08-14 | 南昌大学第二附属医院 | Pedicle screw placing device |
| CN111557725B (en) * | 2020-05-23 | 2022-03-22 | 余丹丹 | Bone screw and perforating device with low damage and high holding force |
| CN112386327B (en) * | 2020-11-13 | 2022-06-03 | 毕建平 | Fracture fixing system adopting negative pressure environment and bone cement single-hole injection and working method |
| CN113974927B (en) * | 2021-12-24 | 2022-05-03 | 北京爱康宜诚医疗器材有限公司 | Intermediate implant for an implantable prosthesis |
Citations (3)
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|---|---|---|---|---|
| FR2820631A1 (en) * | 2001-02-15 | 2002-08-16 | Karim Benazzouz | Implant for feeding bone cement into fracture site has passage extending into screw with cross openings to discharge cement |
| CN201591618U (en) * | 2010-01-18 | 2010-09-29 | 李润红 | Medical bone screw |
| CN102940523A (en) * | 2012-11-26 | 2013-02-27 | 中国人民解放军***总医院 | Assembly for reinforcing injectable vertebral pedicle screw |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8062270B2 (en) * | 2003-07-15 | 2011-11-22 | Spinal Generations, Llc | Method and device for delivering medicine to bone |
| CN201346237Y (en) * | 2009-01-14 | 2009-11-18 | 杨惠林 | Pourable screw for pedicle of vertebral arch |
| US20110144703A1 (en) * | 2009-02-24 | 2011-06-16 | Krause William R | Flexible Screw |
| JP6411446B2 (en) * | 2013-03-15 | 2018-10-24 | インノビシオン， インコーポレーティッド | Bone screw and method of use |
-
2016
- 2016-04-19 CN CN201610241145.XA patent/CN105852950B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2820631A1 (en) * | 2001-02-15 | 2002-08-16 | Karim Benazzouz | Implant for feeding bone cement into fracture site has passage extending into screw with cross openings to discharge cement |
| CN201591618U (en) * | 2010-01-18 | 2010-09-29 | 李润红 | Medical bone screw |
| CN102940523A (en) * | 2012-11-26 | 2013-02-27 | 中国人民解放军***总医院 | Assembly for reinforcing injectable vertebral pedicle screw |
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| CN105852950A (en) | 2016-08-17 |
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Effective date of registration: 20220224 Address after: No.23, Lane 3399, Kangxin highway, Pudong New Area, Shanghai, 201314 Patentee after: SHANGHAI LONGHUI MEDICAL TECHNOLOGY Co.,Ltd. Address before: 266003 joint surgery, Affiliated Hospital of Qiingdao University, 59 Haier Road, Laoshan District, Qingdao, Shandong Patentee before: THE AFFILIATED HOSPITAL OF QINGDAO University |
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