CN105434025A - Transverse connecting device for internal fixation of spine - Google Patents
Transverse connecting device for internal fixation of spine Download PDFInfo
- Publication number
- CN105434025A CN105434025A CN201510839264.0A CN201510839264A CN105434025A CN 105434025 A CN105434025 A CN 105434025A CN 201510839264 A CN201510839264 A CN 201510839264A CN 105434025 A CN105434025 A CN 105434025A
- Authority
- CN
- China
- Prior art keywords
- hole
- out against
- screw
- tight block
- withstanding tight
- 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.)
- Pending
Links
Classifications
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
- A61B17/7052—Connectors, not bearing on the vertebrae, for linking longitudinal elements together of variable angle or length
-
- 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
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- 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
Abstract
The invention discloses a medical apparatus and particularly relates to a transverse connecting device connected to fixing connection rods and used for internal fixation of the spine. The transverse connecting device comprises two connectors arranged symmetrically, wherein a connecting hook is arranged at one end of each connector, a connecting rod is arranged at the other end of each connector, and the two connecting rods are mutually connected through an adjusting bolt capable of adjusting the distance of the two connectors. The transverse connecting device is structurally characterized by further comprising tightening blocks, tightening screws and pins, arc-shaped grooves with lateral openings are formed in connecting hooks, threaded holes are formed in the connectors, pin holes communicated with the threaded holes are formed in the side faces of the connectors, the tightening blocks and the tightening screws are installed in the threaded holes, the tightening blocks are movably in riveted connection with the tightening screws, the tightening screws are in threaded connection with the threaded holes, the pins are installed in pin holes, the tightening blocks and the arc-shaped grooves form clamping cavities for clamping the connection rods, and the positions, in contact with the connection rods, of the tightening blocks present in forms of cambered surfaces. The transverse connecting device has the advantages of being convenient to install, stable in structure and adjustable in length.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially a kind ofly connect and be fixedly connected with excellent internal fixation of spine cross-connecting apparatus.
Background technology
Spinal internal fixation system comprises pedicle screw, pitman and lateral connector.In operation process, first pedicle screw is screwed into vertebral body both sides, then pitman and pedicle screw is fixed, install lateral connector after the installation of both sides between two pitmans, its effect is that guarantee two pitmans are firmly stable, does not shake.
As Chinese utility model 201520312479.2 disclosed " the adjustable lateral connector of a kind of internal fixation of spine ", one end of its first hook and the second hook is provided with C type draw-in groove, the sidewall of C type draw-in groove is provided with screwed hole, the horizontal retaining screw that connects is threaded with screwed hole, the end of horizontal even retaining screw is exposed in C type draw-in groove, form with C type draw-in groove and clamp chamber, by the pitman clamping be placed in C type draw-in groove.Connect position that retaining screw and pitman clamp mutually conically due to horizontal, horizontal to connect the area that retaining screw and pitman contact with each other very little, and pitman is easy to skid off from C type draw-in groove, causes spinal internal fixation system to be stablized not firm, even shakes and get loose.
By lateral connector be made up of two union joints and a lateral connection bar, its lateral connection rod can not regulate length, its length carries out cutting according to the distance between two pitmans, not only the cross section of cutting is irregular, and union joint will be exposed in the two ends of lateral connection rod, to determine that the length of lateral connection rod is more than the distance between two union joints.Operation process is complicated, and operating time is long, and the length of lateral connection rod is wayward, the too short danger having disengaging union joint, long meeting stimulated muscle soft tissue.Although the lateral connection rod also had can regulate length, its structural stability is poor, not easy to operate, and two easy run-off the straights of union joint depart from, and affect surgical effect.
Summary of the invention
Technical problem to be solved by this invention is to provide the internal fixation of spine cross-connecting apparatus that a kind of easy for installation, Stability Analysis of Structures, length can regulate.
The present invention's adopted technical scheme that solves the problem is: this device comprises two union joints be arranged symmetrically with, each union joint one end is provided with butt hook, the other end is provided with connecting rod, two connecting rods are connected to each other by the adjusting bolt that can adjust two union joint distances, its construction features also comprises withstanding tight block, hold out against screw and pin, butt hook is provided with the arcuate groove of lateral openings, union joint is provided with screwed hole, the side of union joint is also provided with the pin hole be connected with screwed hole, withstanding tight block and hold out against screw and be arranged in screwed hole, withstanding tight block with hold out against screw activity rivet, hold out against screw to be threaded with screwed hole, pin is arranged in pin hole, withstanding tight block and arcuate groove are configured for the clamping chamber clamping pitman, and the position that withstanding tight block contacts with pitman is cambered surface.
Of the present invention holding out against in screw is provided with through hole, through hole is made up of the first through hole, the second through hole and the 3rd through hole, first through hole is circular port, and the 3rd through hole is hexagonal hole, and the second through hole is the round taper hole from the 3rd through hole to the first through hole convergent; What one end of withstanding tight block was provided with evagination holds out against ring, and hold out against rotating being placed in of ring and hold out against in the first through hole of screw, and the end holding out against ring is provided with flange, the external diameter of flange is greater than the internal diameter of the first through hole.
The end of a connecting rod of the present invention is provided with bolt hole, and another root connecting rod is provided with chute, and the screw rod of adjusting bolt to be placed in chute and to be threaded with bolt hole, and the diameter of adjusting bolt screw rod is less than the width of chute.
Adjusting bolt of the present invention is hexagon socket head cap screw.
The opening in clamping chamber of the present invention is tilted to lower layout.
The present invention compared with prior art, there is following beneficial effect: 1, this cross-connecting apparatus is provided with screwed hole on union joint, withstanding tight block and hold out against screw and be arranged in screwed hole, hold out against screw to be threaded with screwed hole, arcuate groove on withstanding tight block and butt hook is configured for the clamping chamber clamping pitman, the position that withstanding tight block and pitman clamp mutually is cambered surface, therefore not only contact area is large for withstanding tight block and pitman, and adhered shape, can firmly pitman be clamped in butt hook, with pin, withstanding tight block is struck tightly again, structure is more firmly stable, not easily rock and get loose, 2, this cross-connecting apparatus arranges chute and bolt hole respectively on two connecting rods, the diameter of the screw rod of adjusting bolt is less than the width of chute, by screw rod mobile distance regulated between two union joints in chute of adjusting bolt, and adopt adjusting bolt to be fixed, structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is axonometric chart of the present invention.
Fig. 3 is the axonometric chart after the present invention decomposes.
Fig. 4 is sectional view of the present invention.
Fig. 5 is the sectional view of adjusting bolt in the present invention.
Fig. 6 is the sectional view after the present invention decomposes.
Fig. 7 is the A place partial enlarged drawing of Fig. 6.
Fig. 8 is using state figure of the present invention.
Fig. 9 is the state diagram of Fig. 8 after implant into body.
Detailed description of the invention
See Fig. 1-Fig. 7, the present embodiment comprises two union joints 1 be arranged symmetrically with, and each union joint 1 one end is provided with butt hook 2, and the other end is provided with connecting rod 3.Two connecting rods 3 are connected to each other by adjusting bolt 4, and adjusting bolt 4 is hexagon socket head cap screw; Wherein the end of a connecting rod 3 is provided with bolt hole 5, and another root connecting rod 3 is provided with chute 6, and the screw rod of adjusting bolt 4 to be placed in chute 6 and to be threaded with bolt hole 5, and the diameter of adjusting bolt 4 screw rod is less than the width of chute 6.Moved around in chute 6 by adjusting bolt 4 screw rod like this, the distance between two union joints 1 can be adjusted; After adjusting to suitable distance, by tightening adjusting bolt 4, two connecting rods 3 are fixed together.
Each union joint 1 is provided with withstanding tight block 7, holds out against screw 8 and pin 9.Butt hook 2 is provided with the arcuate groove 21 of lateral openings, union joint 1 is provided with screwed hole 11, the side of union joint 1 is also provided with the pin hole 12 be connected with screwed hole 22, withstanding tight block 7 and hold out against screw 8 and be arranged in screwed hole 11, withstanding tight block 7 and hold out against screw 8 activity riveted joint, hold out against screw 8 to be threaded with screwed hole 11, pin 9 is arranged in pin hole 12, the end of withstanding tight block 7 protrudes screwed hole 11 and is configured for arcuate groove 21 the clamping chamber 13 clamping pitman 10, the opening in clamping chamber 13 is tilted to lower layout, and the position that withstanding tight block 7 contacts with pitman 10 is cambered surface.
Hold out against in screw 8 and be provided with through hole, through hole is made up of the first through hole 81, second through hole 82 and the 3rd through hole 83, wherein the first through hole 81 is circular port, 3rd through hole 83 is hexagonal hole, and the second through hole 82 is the round taper hole from the 3rd through hole 83 to the first through hole 81 convergent.What one end of withstanding tight block 7 was provided with evagination holds out against ring 71, holds out against rotating being placed in of ring 71 and holds out against in the first through hole 81 of screw 8.Be specially and holding out against after ring 71 inserts the first through hole 81, axial force is applied from the 3rd through hole 83 to holding out against ring 71 with instrument, the edge holding out against ring 71 is outwards turned down and forms flange 72, external diameter due to flange 72 is greater than the internal diameter of the first pipe perforation 81, thus by withstanding tight block 7 together with holding out against screw 8 and being movably riveted on, withstanding tight block 7 and hold out against screw 8 and can mutually rotate.
See Fig. 8 and Fig. 9, this cross-connecting apparatus and pitman 10, pedicle screw 14 form spinal internal fixation system.During use, first unclamp adjusting bolt 4, the distance between two butt hooks 2 can be adjusted; After implanting, regulate the distance between two butt hooks 2 according to actual needs, two butt hooks 2 are caught on a pitman 10 respectively; Then will hold out against screw 8 with inner hexagon spanner to tighten, due to withstanding tight block 7 with to hold out against between screw 8 be movable riveted joint, tighten when holding out against screw 8, withstanding tight block 7 can not rotate together; After the clamping chamber 13 that withstanding tight block 7 and arcuate groove 21 are formed clamps pitman 10, knocked in by pin 9 in pin hole 12, pin 9 withstands withstanding tight block 7, prevents withstanding tight block 7 from loosening, thus firmly clamps pitman 10.Finally tighten adjusting bolt 4, the distance between two butt hooks 2 is fixed.
Claims (5)
1. an internal fixation of spine cross-connecting apparatus, comprise two union joints (1) be arranged symmetrically with, each union joint (1) one end is provided with butt hook (2), the other end is provided with connecting rod (3), two connecting rods (3) are connected to each other by the adjusting bolt (4) that can adjust two union joint (1) distances, it is characterized in that: also comprise withstanding tight block (7), hold out against screw (8) and pin (9), butt hook (2) is provided with the arcuate groove (21) of lateral openings, union joint (1) is provided with screwed hole (11), the side of union joint (1) is also provided with the pin hole (12) be connected with screwed hole (11), withstanding tight block (7) and hold out against screw (8) and be arranged in screwed hole (11), withstanding tight block (7) with hold out against screw (8) activity rivet, hold out against screw (8) to be threaded with screwed hole (11), pin (9) is arranged in pin hole (12), withstanding tight block (7) and arcuate groove (21) are configured for the clamping chamber (13) clamping pitman (10), and the position that withstanding tight block (7) contacts with pitman (10) is cambered surface.
2. internal fixation of spine cross-connecting apparatus according to claim 1, it is characterized in that: described holding out against in screw (8) is provided with through hole, through hole is made up of the first through hole (81), the second through hole (82) and the 3rd through hole (83), first through hole is circular port (81), 3rd through hole is hexagonal hole (83), and the second through hole (82) is the round taper hole from the 3rd through hole (83) to the first through hole (81) convergent; What one end of withstanding tight block (7) was provided with evagination holds out against ring (71), holding out against rotating being placed in of ring (71) holds out against in first through hole (81) of screw (8), and the end holding out against ring (71) is provided with flange (72), the external diameter of flange (72) is greater than the internal diameter of the first through hole (81).
3. internal fixation of spine cross-connecting apparatus according to claim 1, it is characterized in that: the end of a described connecting rod (3) is provided with bolt hole (5), another root connecting rod (3) is provided with chute (6), the screw rod of adjusting bolt (4) to be placed in chute (6) and to be threaded with bolt hole (5), and the diameter of adjusting bolt (4) screw rod is less than the width of chute (6).
4. internal fixation of spine cross-connecting apparatus according to claim 1, is characterized in that: described adjusting bolt (4) is hexagon socket head cap screw.
5. internal fixation of spine cross-connecting apparatus according to claim 1, is characterized in that: the opening of described clamping chamber (13) is tilted to lower layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839264.0A CN105434025A (en) | 2015-11-27 | 2015-11-27 | Transverse connecting device for internal fixation of spine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839264.0A CN105434025A (en) | 2015-11-27 | 2015-11-27 | Transverse connecting device for internal fixation of spine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105434025A true CN105434025A (en) | 2016-03-30 |
Family
ID=55544980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510839264.0A Pending CN105434025A (en) | 2015-11-27 | 2015-11-27 | Transverse connecting device for internal fixation of spine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105434025A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725791A (en) * | 2017-03-01 | 2017-05-31 | 常州凯耀医疗器械有限公司 | Backbone correcting fixed system |
| CN110680488A (en) * | 2019-09-16 | 2020-01-14 | 北京市春立正达医疗器械股份有限公司 | Transverse connecting device and spinal internal fixing system applying same |
| US10851830B1 (en) | 2019-05-29 | 2020-12-01 | Pegatron Corporation | Connecting rod structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087806A (en) * | 1992-10-22 | 1994-06-15 | 丹内克医学有限公司 | In order to support the spinal rod transverse connector of spinal fixation element |
| US6432108B1 (en) * | 2000-01-24 | 2002-08-13 | Depuy Orthopaedics, Inc. | Transverse connector |
| US20030018334A1 (en) * | 2001-02-12 | 2003-01-23 | Marc Richelsoph | Rod to rod connector |
| CN203315062U (en) * | 2013-01-24 | 2013-12-04 | 天津市威曼生物材料有限公司 | Universal horizontal connector for internal fixation of spines |
| US9131964B2 (en) * | 2009-04-23 | 2015-09-15 | Spinal Elements, Inc. | Transverse connectors |
| CN205286505U (en) * | 2015-11-27 | 2016-06-08 | 周建明 | Transverse connection device for spinal internal fixation |
-
2015
- 2015-11-27 CN CN201510839264.0A patent/CN105434025A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087806A (en) * | 1992-10-22 | 1994-06-15 | 丹内克医学有限公司 | In order to support the spinal rod transverse connector of spinal fixation element |
| US6432108B1 (en) * | 2000-01-24 | 2002-08-13 | Depuy Orthopaedics, Inc. | Transverse connector |
| US20030018334A1 (en) * | 2001-02-12 | 2003-01-23 | Marc Richelsoph | Rod to rod connector |
| US9131964B2 (en) * | 2009-04-23 | 2015-09-15 | Spinal Elements, Inc. | Transverse connectors |
| CN203315062U (en) * | 2013-01-24 | 2013-12-04 | 天津市威曼生物材料有限公司 | Universal horizontal connector for internal fixation of spines |
| CN205286505U (en) * | 2015-11-27 | 2016-06-08 | 周建明 | Transverse connection device for spinal internal fixation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725791A (en) * | 2017-03-01 | 2017-05-31 | 常州凯耀医疗器械有限公司 | Backbone correcting fixed system |
| CN106725791B (en) * | 2017-03-01 | 2023-11-28 | 常州凯耀医疗器械有限公司 | Spinal orthopedic fixation system |
| US10851830B1 (en) | 2019-05-29 | 2020-12-01 | Pegatron Corporation | Connecting rod structure |
| CN110680488A (en) * | 2019-09-16 | 2020-01-14 | 北京市春立正达医疗器械股份有限公司 | Transverse connecting device and spinal internal fixing system applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
|
| RJ01 | Rejection of invention patent application after publication |