CN103431902B - Vertebral body fusion device - Google Patents

Vertebral body fusion device Download PDF

Info

Publication number
CN103431902B
CN103431902B CN201310389000.0A CN201310389000A CN103431902B CN 103431902 B CN103431902 B CN 103431902B CN 201310389000 A CN201310389000 A CN 201310389000A CN 103431902 B CN103431902 B CN 103431902B
Authority
CN
China
Prior art keywords
sleeve
flexibly connected
housing
assembly
slide block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310389000.0A
Other languages
Chinese (zh)
Other versions
CN103431902A (en
Inventor
胡火星
贾爱红
庄寅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU DINGJIAN MEDICAL APPLIANCE Co Ltd
Original Assignee
CHANGZHOU DINGJIAN MEDICAL APPLIANCE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGZHOU DINGJIAN MEDICAL APPLIANCE Co Ltd filed Critical CHANGZHOU DINGJIAN MEDICAL APPLIANCE Co Ltd
Priority to CN201310389000.0A priority Critical patent/CN103431902B/en
Publication of CN103431902A publication Critical patent/CN103431902A/en
Application granted granted Critical
Publication of CN103431902B publication Critical patent/CN103431902B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Neurology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

The invention relates to the technical field of vertebral body fusion devices, in particular to a vertebral body fusion device capable of well supporting and fixing a vertebral body. The vertebral body fusion device comprises a first outer shell, a second outer shell, a first sleeve, a second sleeve, a push rod, a first distraction component, a second distraction component and a sliding block component. One end of the first outer shell stretches into the second outer shell. The first sleeve and the push rod are arranged in the first outer shell. One end of the push rod stretches into the first sleeve, the first sleeve is sleeved with one end of the second sleeve, and the other end of the second sleeve is located in the second outer shell. The first distraction component and the second distraction component are respectively connected with the sliding block component in a movable mode, and the first sleeve is movably connected with the second sleeve. The vertebral body fusion device is convenient to operate and capable of playing a good supporting role in a spine, facilitates the operation of surgery, and has good stability.

Description

Threaded fusion cage
Technical field
The present invention relates to threaded fusion cage technical field, especially a kind of threaded fusion cage that better can support, fix vertebral body.
Background technology
Threaded fusion cage is inserted between spinal segments, the effect doing to support spinal column is played to it, although existing threaded fusion cage also can support spinal column, but its steadiness is poor, because human spine also can move along with while human action thereupon, if the support effect of threaded fusion cage is poor, just do not reach the object of expection treatment.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of threaded fusion cage.
The technical solution adopted for the present invention to solve the technical problems is: a kind of threaded fusion cage, comprise the first shell, second housing, first sleeve, second sleeve, push rod, first struts assembly, second struts assembly and slide block assembly, one end of the first described shell stretches in second housing, first sleeve and push rod are arranged in the first shell, one end of push rod is stretched in the first sleeve, one end of second sleeve is sleeved on the first sleeve, the other end is positioned at second housing, first struts assembly, second struts assembly is flexibly connected with slide block assembly respectively, first sleeve is flexibly connected with the second sleeve,
Described slide block assembly has promotion slide block, connection sliding block and fixed block, promote slide block and be arranged on the first sleeve inner, one end of connection sliding block is positioned at the first sleeve, and the other end is positioned at the second sleeve, and fixed block is arranged on the bottom of the second sleeve and contacts with second housing;
Described first struts assembly has two the first blades and two head rods, two the first blades lay respectively at the both sides of second housing, first blade is flexibly connected with head rod, second struts assembly has two the second blades and two the second connecting rods, two the second blades lay respectively at the both sides of second housing, second blade is flexibly connected with the second connecting rod, two described head rods are flexibly connected with promotion slide block and the end of connection sliding block in the first sleeve respectively, end in the second sleeve is flexibly connected two the second connecting rods with fixed block and connection sliding block respectively.
The first described blade is flexibly connected by bearing pin with head rod.
The second described blade is flexibly connected by bearing pin with the second connecting rod.
Described head rod is flexibly connected by bearing pin with promotion slide block and the end of connection sliding block in the first sleeve respectively.
End in the second sleeve is flexibly connected by bearing pin two described the second connecting rods with fixed block and connection sliding block respectively.
The first described shell is flexibly connected by pin with second housing.
The invention has the beneficial effects as follows: the present invention is easy to operate, good supporting role can be played to spinal column, facilitate the operation of operation, there is good steadiness, the length of blade can make fusion device play the effect effectively fixing vertebral body, not easily deviates from from vertebral body, thus reduces the postoperative probability implanting inefficacy, two groups of blades open in order, facilitate Operation and the taking-up of whole assembly.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is further described.
Fig. 1 is the schematic diagram of original state of the present invention.
Fig. 2 is the schematic diagram that the present invention promotes the first shell in the direction of the arrow.
Fig. 3 is end-state schematic diagram of the present invention.
Fig. 4 is the A-A sectional view of Fig. 2.
In figure: 1. the first shell, 2. second housing, 3. the first sleeve, 4. the second sleeve, 5. push rod, 6. first struts assembly, 61. first blades, 62. head rods, 7. second strut assembly, 71. second blade 72. second connecting rods, 8. slide block assembly, 81. promote slide block, 82. connection sliding blocks, 83. fixed blocks.
Detailed description of the invention
The present invention is further illustrated by reference to the accompanying drawings now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present invention in a schematic way, and therefore it only shows the formation relevant with the present invention.
Threaded fusion cage as shown in Figure 3, comprise the first shell 1, second housing 2, first sleeve 3, second sleeve 4, push rod 5, first struts assembly 6, second struts assembly 7 and slide block assembly 8, one end of the first described shell 1 stretches in second housing 2, first sleeve 3 is arranged in the first shell 1 with push rod 5, one end of push rod 5 is stretched in the first sleeve 3, one end of second sleeve 4 is sleeved on the first sleeve 3, the other end is positioned at second housing 2, first struts assembly 6, second struts assembly 7 is flexibly connected with slide block assembly 8 respectively, chute is provided with in second sleeve 4, first sleeve 3 is slidably connected by chute and the second sleeve 4.
Slide block assembly 8 has promotion slide block 81, connection sliding block 82 and fixed block 83, promote slide block 81 and be arranged on the first sleeve 3 inside, one end of connection sliding block 82 is positioned at the first sleeve 3, the other end is positioned at the second sleeve 4, and fixed block 83 is fixedly installed on the bottom of the second sleeve 4 and contacts with second housing 2;
First struts assembly 6 has two the first blades 61 and two head rods 62, two the first blades 61 lay respectively at the both sides of second housing 2, first blade 61 passes through pinned connection with head rod 62, second struts assembly 7 has two the second blades 71 and two the second connecting rods 72, two the second blades 71 lay respectively at second housing 2 both sides, second blade 71 and the second connecting rod 72 pass through pinned connection, two head rods 62 are flexibly connected with promotion slide block 81 and the end of connection sliding block 82 in the first sleeve 3 respectively, two the second connecting rods 72 are connected with the end of connection sliding block 82 in the second sleeve 4 with fixed block 83 respectively by bearing pin.
Head rod 62 is made up of two poles, and two poles are flexibly connected, and form tetragon after two head rods 62 are connected; Second connecting rod 72 is also made up of two poles, and two poles are flexibly connected, and form tetragon after two the second connecting rods 72 are connected.
First shell 1 is connected by pin with second housing 2, and the first shell 1 can be mobile in second housing 2 along pin.
First shell 1, second housing 2, first sleeve 3, second sleeve 4 there is the groove being provided with and two the first blades 61 and two the second blades 71 can be made to pass through.
Initial condition of the present invention is for shown in Fig. 1, the end of the first shell 1 is positioned at the outside of second housing 2, push rod 5 is the outsides being placed on the first shell 1, and two head rods 62 and two the second connecting rods 72 tighten up all separately, the top card of the first blade 61 is on the side of the first shell 1, and the top card of the second blade 71 is on the side of second housing 2.
As Fig. 1, Fig. 2, Fig. 3 and Fig. 4 is when needs use threaded fusion cage, first shell 1 is promoted in second housing 2, because fixed block 83 touches with the bottom connection of second housing 2, connection sliding block 82 slowly drives two the second connecting rods 72 to become deployed condition from the respective state of tightening up, the second blade 71 is made to stretch out second housing 2, when second struts assembly 7 and reach softened state completely, hold-down screw is used to be fixed the first shell 1 and second housing 2, again push rod 5 is advanced in the first shell 1, promotion slide block 81 inwardly promotes by push rod 5, first struts assembly 6 starts to launch, two head rods 62 become deployed condition from the respective state of tightening up, the first blade 61 is driven to stretch out second housing 2, after push rod 5 enters the first shell 1 completely, first struts assembly 6 and second struts assembly 7 and all reaches the state strutted, just can complete operation process, two groups of blades open in order, facilitate Operation and the taking-up of whole assembly, be convenient to the operation of performing the operation.
Above-mentioned embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.

Claims (6)

1. a threaded fusion cage, it is characterized in that: comprise the first shell (1), second housing (2), first sleeve (3), second sleeve (4), push rod (5), first struts assembly (6), second struts assembly (7) and slide block assembly (8), one end of described the first shell (1) stretches in second housing (2), first sleeve (3) and push rod (5) are arranged in the first shell (1), one end of push rod (5) is stretched in the first sleeve (3), one end of second sleeve (4) is sleeved on the first sleeve (3), the other end is positioned at second housing (2), first struts assembly (6), second struts assembly (7) is flexibly connected with slide block assembly (8) respectively, first sleeve (3) is flexibly connected with the second sleeve (4),
Described slide block assembly (8) has promotion slide block (81), connection sliding block (82) and fixed block (83), promote slide block (81) and be arranged on the first sleeve (3) inside, one end of connection sliding block (82) is positioned at the first sleeve (3), the other end is positioned at the second sleeve (4), and fixed block (83) is arranged on the bottom of the second sleeve (4) and contacts with second housing (2);
Described first struts assembly (6) has two the first blades (61) and two head rods (62), two the first blades (61) lay respectively at the both sides of second housing (2), first blade (61) is flexibly connected with head rod (62), second struts assembly (7) has two the second blades (71) and two the second connecting rods (72), two the second blades (71) lay respectively at the both sides of second housing (2), second blade (71) is flexibly connected with the second connecting rod (72), two described head rods (62) are flexibly connected with promotion slide block (81) and the end of connection sliding block (82) in the first sleeve (3) respectively, end in the second sleeve (4) is flexibly connected two the second connecting rods (72) with fixed block (83) and connection sliding block (82) respectively.
2. threaded fusion cage according to claim 1, is characterized in that: described the first blade (61) is flexibly connected by bearing pin with head rod (62).
3. threaded fusion cage according to claim 1, is characterized in that: described the second blade (71) is flexibly connected by bearing pin with the second connecting rod (72).
4. threaded fusion cage according to claim 1, is characterized in that: described head rod (62) is flexibly connected by bearing pin with promotion slide block (81) and the end of connection sliding block (82) in the first sleeve (3) respectively.
5. threaded fusion cage according to claim 1, is characterized in that: the end in the second sleeve (4) is flexibly connected by bearing pin two described the second connecting rods (72) with fixed block (83) and connection sliding block (82) respectively.
6. threaded fusion cage according to claim 1, is characterized in that: described the first shell (1) is flexibly connected by pin with second housing (2).
CN201310389000.0A 2013-08-30 2013-08-30 Vertebral body fusion device Active CN103431902B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310389000.0A CN103431902B (en) 2013-08-30 2013-08-30 Vertebral body fusion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310389000.0A CN103431902B (en) 2013-08-30 2013-08-30 Vertebral body fusion device

Publications (2)

Publication Number Publication Date
CN103431902A CN103431902A (en) 2013-12-11
CN103431902B true CN103431902B (en) 2015-05-06

Family

ID=49685696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310389000.0A Active CN103431902B (en) 2013-08-30 2013-08-30 Vertebral body fusion device

Country Status (1)

Country Link
CN (1) CN103431902B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105662565B (en) * 2016-03-29 2018-03-02 苏州点合医疗科技有限公司 Support meanss between the two-way expansion type vertebra of a kind of X-axis, Y-axis
CN106137473B (en) * 2016-08-10 2018-05-18 邹德威 The multi-functional Intervertebral disc fusion device of lumbar vertebral posterior
CN108478311B (en) * 2018-04-24 2024-01-16 黄振强 Interbody fusion cage
CN111671554B (en) * 2020-05-26 2020-12-22 常州集硕医疗器械有限公司 Cervical vertebra minimally invasive expansion type intervertebral fusion system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070276493A1 (en) * 2005-02-17 2007-11-29 Malandain Hugues F Percutaneous spinal implants and methods
BRPI0808817A2 (en) * 2007-03-13 2014-08-19 Synthes Gmbh EXPANSIBLE INTERVERTEBRAL IMPLANT FOR IMPLEMENTATION BETWEEN FIRST AND SECOND VERTEBAS AND METHOD FOR SIZING ADJUSTABLE INTERVERTEBRAL IMPLANT
CN201085670Y (en) * 2007-09-28 2008-07-16 陈唯宁 Intervertebral fusion device with adjustable angular wheel
TW200938157A (en) * 2008-03-11 2009-09-16 Fong-Ying Chuang Interspinous spine fixing device
CN201356642Y (en) * 2009-03-11 2009-12-09 吴乃庆 Centrum expanding fusion cage
US8945184B2 (en) * 2009-03-13 2015-02-03 Spinal Simplicity Llc. Interspinous process implant and fusion cage spacer
CN203447346U (en) * 2013-08-30 2014-02-26 常州鼎健医疗器械有限公司 Threaded fusion cage

Also Published As

Publication number Publication date
CN103431902A (en) 2013-12-11

Similar Documents

Publication Publication Date Title
CN103431902B (en) Vertebral body fusion device
MY176476A (en) A device for bone support with improved rotational stability
CN203447346U (en) Threaded fusion cage
CN203168540U (en) Folding foot rest mechanism of chair
CN203841220U (en) Boot supports for high boots
CN206197987U (en) A kind of pouch stretching pliers
CN208573151U (en) Connector for outdoor umbrella and the outdoor umbrella that is used convenient for Rapid Combination
CN105124958A (en) Splittable double rocking chair
CN203774240U (en) Jet type fuse with jet type fusing drop driving mechanism
CN203314269U (en) Portable sunshade
CN204962660U (en) Folding floor lamp lighting fixture
CN202604910U (en) lateral vertebral body restorer
CN204781099U (en) A steam collection device for coastal area
CN203168508U (en) Compact shelf fixing device
Ambasciano et al. Strangers in a Strange Land No More: Introducing the Book Review Symposium Section and Jennifer Larson’s Understanding Greek Religion (2016)
CN203314273U (en) Portable sunshade
CN101564316B (en) Unfolded vertebral ridge supporting and stabilizing device
CN203663021U (en) Medical quilt supporting frame
CN103070565A (en) Foldable foot bracket mechanism for chair
CN105534567A (en) Tissue morcellating protecting basket and using method thereof
CN205458844U (en) Ware is pushed open to intestines tube
CN204766013U (en) Bistrique frame
CN202682273U (en) Supporting rod facilitating abduction of operating table
CN203468225U (en) Boot leg supporting frame
CN106320445A (en) Water vapour collecting device for coastal region

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant