CN204411031U - Strut type fusion device - Google Patents

Strut type fusion device Download PDF

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Publication number
CN204411031U
CN204411031U CN201420732252.9U CN201420732252U CN204411031U CN 204411031 U CN204411031 U CN 204411031U CN 201420732252 U CN201420732252 U CN 201420732252U CN 204411031 U CN204411031 U CN 204411031U
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CN
China
Prior art keywords
fusion device
body
bone
strut
upper
Prior art date
Application number
CN201420732252.9U
Other languages
Chinese (zh)
Inventor
王雅玲
白云生
樊国平
黄锡艺
白艳丽
Original Assignee
北京市富乐科技开发有限公司
胡桓宇
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Application filed by 北京市富乐科技开发有限公司, 胡桓宇 filed Critical 北京市富乐科技开发有限公司
Priority to CN201420732252.9U priority Critical patent/CN204411031U/en
Application granted granted Critical
Publication of CN204411031U publication Critical patent/CN204411031U/en

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Abstract

This utility model relates to and struts type fusion device, belongs to medical instruments field, is applicable to the spinal surgery that unstable, the serious intervertebral disc disorder of lumbar intervertebral disc degenerative disease companion vertebral body need carry out extensively decompression.Strut type fusion device by merging body (1) and movable block (2) forms, it is characterized in that: the dentalation that fusion body (1) upper and lower surface has tetrapyamid shape effectively prevents fusion device from sliding, large appearance bone hole in the middle part of upper and lower end face, can carry out the implantation of homogeneous allogenic bone or artificial bone; Movable block (2) left end outside is hexagon shape, convenient rotation, and middle part is multidiameter, and right-hand member is a rectangular block and with chamfering, is convenient to strut and merges body (1).By preoperative imaging examination, determine the surgery location of patient and implement operation, inserting broken bone, knocking and beat real broken bone, implanting fusion device to final location, with the final position of X-ray line justification fusion device with apparatus.

Description

Strut type fusion device

Technical field

This utility model relates to and struts type fusion device, belongs to medical instruments field, is applicable to the spinal surgery that unstable, the serious intervertebral disc disorder of lumbar intervertebral disc degenerative disease companion vertebral body need carry out extensively decompression.

Background technology

China is developing country, medical level is still in medium level in the world, still when state its people go to a doctor because lumbago is uncomfortable, usually degenerative lumbar is heavier, the general performance that all can be associated with lumbar instability, and Lumbar Fusion technology is the important means for the treatment of the diseases such as lumbar instability at present, many scholars think that the marrow of modern spinal surgery is four parts now: decompression, fusion, orthopedic, internal fixtion, the as can be seen here status of Lumbar Fusion technology in spinal surgery.

Waist interbody fusion is one of method for the treatment of spinal disease, and annual increasing crowd accepts the treatment of interbody fusion.Interbody fusion comprises autologous bone transplanting and merges and allogenic bone transplantation fusion, due to autologous bone limited source, increase for district wound, can not provide the shortcoming such as mechanically stable timely that the clinical practice of interbody fusion is restricted, and allogenic bone transplantation not only costly, limited amount but also the virus disseminating caused by allograph bone and immunologic rejection be also affect its main cause in wide clinical application.In recent years, for improving bone collection fusion rate, reduce extenal fixation dependency, improve and keep the curvature of spinal column, Invasive lumbar fusion device arises at the historic moment.

Summary of the invention

The purpose of this utility model is: for prior art Problems existing, the invention provides and struts type fusion device.

The technical solution of the utility model is as follows:

This utility model adopts polyether-ether-ketone (PEEK) material, the features such as this material has that temperature classification is high, radiation hardness, chemical-resistant resistance, impact strength are high, wearability and fatigue durability is good, fire-retardant, excellent electrical property.

This utility model is by merging body 1 and movable block 2 forms.

Merge body 1: overall in arc line type structure, close with corpus vertebrae planform, the upper and lower surface contacted with terminal plate of vertebral body has the dentalation of tetrapyamid shape, embeds in upper and lower soleplate, can effectively prevent fusion device from moving, slide, cause fusion failure; Left end has a screwed hole, and has rectangular channel, this structural strengthening stability; Allograph bone or artificial bone can be filled in the specially designed hole of mid portion; Right-hand member has an opening and opening reaches the hole of middle part, is convenient to strut, and right-hand member arcwall face designs, and avoids injured nerve, conveniently implants; Appearance bone hole large in the middle part of upper and lower end face, can carry out the implantation of homogeneous allogenic bone or artificial bone, and is conducive to growth and the healing of skeleton.

Movable block 2: left end outside is hexagon shape, convenient rotation, middle part is multidiameter, and right-hand member is a rectangular block and with chamfering, is convenient to strut and merges body 1.

Loaded by movable block 2 during use and merge in body 1, after ensureing assembling, movable block 2 right-hand member does not exceed fusion body 1 right side.

By preoperative imaging examination, the diagnosis such as row x-ray, CT examination patient condition, determine the surgery location of patient and implement operation: row operation opening, select the implant of corresponding size, insert broken bone, knock and beat real broken bone, implant fusion device to final location, with the final position of X-ray line justification fusion device with apparatus.

This utility model novel in structural design, practicality, safety, operation technique are simple, this utility model adopts polyetheretherketonematerials materials, good biocompatibility, and elastic modelling quantity is close to skeleton, can enough mechanical strengths be maintained in human body, be suitable for Orthopedic Clinical and apply.

This utility model has the following advantages:

1. window greatly design, great through-hole rate increases the contact surface of bone grafting, is beneficial to bone grafting growth and merges.

2. polyether-ether-ketone polymer composite, good biocompatibility, elastic modelling quantity, close to human body bone, effectively reduces stress shielding.

3. edge circular arc process, stimulates little to surrounding tissue in art, neuroprotective tissue.

4. the toothed surfaces of upper and lower end face, significantly improves the resistant slide power in all directions during operation.

Accompanying drawing explanation

Fig. 1 is the structure chart that this utility model struts type fusion device.

Fig. 2 is the front view that this utility model merges body 1.

Fig. 3 is that this utility model merges body 1 right view.

Fig. 4 is the structure chart of this utility model movable block 2.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The first step carries out surgical exposure.

Second step, in order to enter intervertebral disc through intervertebral space, excises.

3rd step uses special equipment to strut and implants space until implant space to recover suitable height, removal equipment, strut and implant space.

4th step uses the cartilage on special equipment removal intervertebral disc and soleplate, notes keeping the complete of soleplate during operation.

5th step implants fusion device to requirements of operation position, carries out operation and fixes and post surgery treatment.

Claims (2)

1. strut type fusion device by merging body (1) and movable block (2) forms, it is characterized in that: merge body (1) entirety in arc line type structure, close with corpus vertebrae planform, the upper and lower surface contacted with terminal plate of vertebral body has the dentalation of tetrapyamid shape, left end has a screwed hole, and have rectangular channel, this structural strengthening stability; Right-hand member has an opening and opening reaches the hole of middle part, is convenient to strut, appearance bone hole large in the middle part of upper and lower end face, can carries out the implantation of homogeneous allogenic bone or artificial bone, and be conducive to growth and the healing of skeleton; Movable block (2) left end outside is hexagon shape, convenient rotation, and middle part is multidiameter, and right-hand member is a rectangular block and with chamfering, is convenient to strut and merges body (1).
2. according to claim 1ly strut type fusion device, it is characterized in that: the upper and lower surface that fusion body (1) contacts with terminal plate of vertebral body has the dentalation of tetrapyamid shape, embed in upper and lower soleplate, can effectively prevent fusion device from moving, slide and cause fusion failure; Right-hand member arcwall face designs, and avoids injured nerve, convenient implantation.
CN201420732252.9U 2014-12-01 2014-12-01 Strut type fusion device CN204411031U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420732252.9U CN204411031U (en) 2014-12-01 2014-12-01 Strut type fusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420732252.9U CN204411031U (en) 2014-12-01 2014-12-01 Strut type fusion device

Publications (1)

Publication Number Publication Date
CN204411031U true CN204411031U (en) 2015-06-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420732252.9U CN204411031U (en) 2014-12-01 2014-12-01 Strut type fusion device

Country Status (1)

Country Link
CN (1) CN204411031U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105232190A (en) * 2015-10-21 2016-01-13 苏州锐进医疗科技有限公司 Assembled lumbar interbody fusion cage
CN105853030A (en) * 2016-03-25 2016-08-17 广州军区广州总医院 Dilatable cervical vertebral fusion cage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105232190A (en) * 2015-10-21 2016-01-13 苏州锐进医疗科技有限公司 Assembled lumbar interbody fusion cage
CN105853030A (en) * 2016-03-25 2016-08-17 广州军区广州总医院 Dilatable cervical vertebral fusion cage

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C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160223

Address after: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50

Patentee after: Hu Huanyu

Address before: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50

Patentee before: Beijing Fule Science & Technology Development Co., Ltd.

Patentee before: Hu Huanyu