CN203662878U - Cervical vertebra plate door opener - Google Patents
Cervical vertebra plate door opener Download PDFInfo
- Publication number
- CN203662878U CN203662878U CN201320870069.0U CN201320870069U CN203662878U CN 203662878 U CN203662878 U CN 203662878U CN 201320870069 U CN201320870069 U CN 201320870069U CN 203662878 U CN203662878 U CN 203662878U
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- Prior art keywords
- screw rod
- arm
- cervical vertebra
- door opener
- plate door
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- Expired - Fee Related
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- 210000003462 vein Anatomy 0.000 claims description 9
- 238000003756 stirring Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 206010008313 Cervical spinal stenosis Diseases 0.000 description 1
- 206010028570 Myelopathy Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002684 laminectomy Methods 0.000 description 1
- 210000004446 longitudinal ligament Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 208000005198 spinal stenosis Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
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Abstract
The utility model relates to a cervical vertebra plate door opener which comprises a long rod, a screw rod and a vertebra plate door opener. The screw rod is in thread connection into the long rod. The front end of the screw rod is connected with a vertebra plate door opening head, and the back end of the screw rod is provided with an operation handle. The vertebra plate door opening head comprises two movable supporting arms and a connecting rod component formed by two connecting rods and a threaded sleeve. The front end of each movable supporting arm is provided with a stirring head. The section of each stirring head is in an L shape. The two stirring heads are arranged symmetrically with the backs against each other. The front end of the long rod is provided with two fixed supporting arms. The front ends of the fixed supporting arms are movably connected with the back ends of the movable supporting arms through pin shafts. The two connecting rods and one end of the threaded sleeve are connected together through pin shafts. The other ends of the two connecting rods are connected to the two movably supporting arms through pin shafts respectively. The front end of the screw rod is arranged in the other end of the threaded sleeve. By controlling the forward path of the screw rod, the separating force and the width of the two stirring heads can be effectively controlled, the phenomenon of vertebra plate breaking due to overexertion is avoided, and successful vertebra plate door opening is guaranteed.
Description
Technical field
This utility model relates to a kind of hospital orthopedics medical apparatus and instruments, relates in particular to a kind of cervical vertebra plate door opener.
Background technology
In bone surgery, have the operation of opening the door of a kind of cervical vertebra plate, i.e. laminoplasty, cuts cervical vertebra plate one side or bilateral by surgical operation, make vertebral plate backward lateral displacement to expand canalis spinalis, remove narrow canalis spinalis to spinoneural compressing.Cervical vertebra plate forming art is applicable to: the diseases such as serious cervical spinal stenosis, cervical ossified posterior longitudinal ligament, Multilevel cervical spondylotic myelopathy and ligamenta flava calcification.In cervical vertebra plate forming art, conventionally taking a side vertebral plate as door-hinge side, opposite side vertebral plate is the side of opening the door, opening in the process of the side vertebral plate that opens the door, use at present conventionally and comprise periosteal elevator, laminectomy rongeur and can not accurately control door opening width or the instrument such as the Laminoplasty spreader of the strength of opening the door, Chang Yin overexerts and causes door-hinge side vertebral plate complete fracture, fracture, causes laminoplasty failure.
Summary of the invention
This utility model mainly solves original vertebral plate instrument of opening the door does not have the controlled structure of dynamics, is easy to overexert cause door-hinge side vertebral plate complete fracture, fracture, causes the technical problem of laminoplasty failure; A kind of cervical vertebra plate door opener is provided, and it can effectively control vertebral plate door opening width by dynamics controlled architecture, makes vertebral plate realize appropriateness and opens the door, and effectively avoids overexertion and vertebral plate phenomenon of rupture occurs, and guarantees that vertebral plate successfully opens the door.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: this utility model comprises stock, screw rod and the vertebral plate head that opens the door, screw rod is located in stock, screw rod and stock are threaded, the front end of screw rod and the described vertebral plate head that opens the door is connected, the rear end of screw rod is provided with operating grip, described vertebral plate open the door head be provided with two symmetrically arranged shifting blocks, shifting block cross section is L-type, two shifting blocks arrange back-to-back.Rotary screw, screw rod can advance or retreat, convert rectilinear motion to by rotatablely moving, can effectively control the process of screw rod, and the forward travel distance control vertebral plate of screw rod open the door head open angle, therefore can effectively control the dynamics of opening of vertebral plate, make vertebral plate realize appropriateness and open the door, avoid the original vertebral plate overexertion and vertebral plate phenomenon of rupture occurs in operation that opens the door, guarantee that vertebral plate successfully opens the door.
As preferably, the described vertebral plate head that opens the door comprises two active supporting arms and a link assembly, the front end of each active supporting arm is provided with the shifting block described in, the front end of described stock is provided with two fixed support arms that extend out, the front end of fixed support arm connects the rear end of active supporting arm by bearing pin, described link assembly is located in the space that active supporting arm becomes with fixed support upper-arm circumference, link assembly comprises two connecting rods and a screw shell, one end of two connecting rods and a screw shell links together by bearing pin, the other end of two connecting rods is connected on two active supporting arms by bearing pin respectively, the front end of described screw rod is located in the other end of screw shell.Open the door in operation at vertebral plate, first two shifting blocks are close together back-to-back, then shifting block are injected in the patient's who offers in advance vertebral plate gap to slowly rotating operation handle, screw rod is turned clockwise in stock, screw rod worms, and promotes forward screw shell, and it is large that the angle of two connecting rods becomes, strut two active supporting arms, thereby make two shifting blocks separately, one of them shifting block is stirred the vertebral plate of a side and is opened, and completes vertebral plate and opens the door; Otherwise, being rotated counterclockwise screw rod, screw rod retreats, and pulls back screw shell, and two connecting rod angles diminish, and active supporting arm draws in, and two shifting blocks are close.
As preferably, the junction point of described connecting rod and described active supporting arm is between the mid point of active supporting arm or mid point and front end at active supporting arm.The power of stirring that can more effectively the thrust of expansion link be converted to shifting block, opens the door vertebral plate more laborsaving, also more reliable.
As preferably, between two described active supporting arms, be connected with a back-moving spring.While guaranteeing to reset, two shifting blocks are drawn close smoothly.
As preferably, the described vertebral plate head that opens the door comprises a lever arm and a fixed arm, the rear end of fixed arm is connected with the front end of described stock, fixed arm is provided with a fixed block, lever arm is the L-type of button down, and the corner of lever arm is connected on described fixed block by bearing pin, and the rear end of lever arm is connected with a screw shell by bearing pin, the front end of described screw rod is located in screw shell, and the front end of described lever arm and the front end of fixed arm are respectively provided with the shifting block described in.Open the door in operation at vertebral plate, first two shifting blocks are close together back-to-back, then shifting block is injected in the patient's who offers in advance vertebral plate gap, slowly rotating operation handle turns clockwise screw rod in stock, screw rod worms, promote forward screw shell, lever arm turns clockwise, and the shifting block on lever arm is slowly away from the shifting block on fixed arm, shifting block on lever arm is stirred the vertebral plate of a side and is opened, and completes vertebral plate and opens the door; When operating grip is rotated counterclockwise while retreating, under the effect of recoil of spring power, lever arm is rotated counterclockwise, and two shifting blocks are close.
As preferably, between described lever arm and fixed arm, be connected with a spring.When active force on operating grip disappears, under the resilience force effect of spring, lever arm is rotated counterclockwise, and guarantees that two shifting blocks are close smoothly.
As preferably, described fixed arm is provided with a chute towards a side of lever arm, and described screw shell is provided with the slide block towards fixed arm, and slide block is embedded in described chute.When screw shell advances, slide block moves forward in chute, guarantees that the direction that screw shell moves forward can not be offset, and guarantees that shifting block is firmly accurate on vertebral plate, can stir more reliably vertebral plate, completes vertebral plate and opens the door.
As preferably, described stock is arranged with a gripping handle outward, and gripping handle is positioned at the rear end of stock, and the lateral wall of gripping handle is provided with waveform anti-slip veins.By the hands shape that fists, be held in outside gripping handle, the width of four fingers just in time with anti-slip veins laminating, both anti-skidding, grip again comfortable.Certainly anti-slip veins also can adopt the anti-slip veins such as check or groove stricture of vagina.
As preferably, the rounded or hexagon of described operating grip, the sidewall of operating grip is provided with anti-slip veins.Rotating operation handle is more laborsaving, anti-skidding again, improves reliability.Operating grip also can adopt leaf handle, and two leaves are symmetrical arranged, and are arranged in in-line, and the plane of rotation of blade face and operating grip is vertical.
As preferably, the across back of described shifting block is 3～10MM, and the thickness of shifting block is 0.5～2MM, and described shifting block is 15～30CM to the distance B of stock rear end, and the diameter of described screw rod is 4～8MM.
The beneficial effects of the utility model are: by controlling the distance of advancing of screw rod, can effectively control dynamics and width that two shifting blocks separate, make vertebral plate realize appropriateness and open the door, avoid overexertion and vertebral plate phenomenon of rupture occurs, guarantee that vertebral plate opens the door smoothly, subsequent procedures is successfully normally carried out.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Fig. 3 is another structural representation of the present utility model.
1. stocks in figure, 2. screw rod, 3. operating grip, 4. shifting block, 5. active supporting arm, 6. fixed support arm, 7. connecting rod, 8. screw shell, 9. back-moving spring, 11. lever arms, 12. fixed arms, 13. fixed blocks, 14. springs, 15. chutes, 16. slide blocks, 17. gripping handles.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the cervical vertebra plate door opener of the present embodiment, as shown in Figure 1, comprise stock 1, screw rod 2 and the vertebral plate head that opens the door, screw rod 2 stretches in stock 1, screw rod 2 and stock 1 are threaded, the front end of screw rod 2 and the vertebral plate head that opens the door is connected, the rear end of screw rod 2 is connected with an operating grip 3, operating grip is rounded, on the sidewall of operating grip 3, there is anti-slip veins, stock 1 overcoat has a gripping handle 17, and gripping handle 17 is positioned at the rear end of stock 1, has the waveform anti-slip veins fitting with finger width on the lateral wall of gripping handle 17.The vertebral plate head that opens the door comprises two active supporting arms 5 and a link assembly, the front end of stock 1 has two fixed support arms 6 that extend out, the front end of fixed support arm 6 connects the rear end of active supporting arm 5 by bearing pin, link assembly is arranged in the space that active supporting arm 5 and fixed support arm 6 surround, link assembly is made up of two connecting rods 7 and a screw shell 8, one end of two connecting rods 7 and a screw shell 8 links together by bearing pin, the other end of two connecting rods 7 is connected to respectively the mid point of two active supporting arms 5 by bearing pin, the other end of screw shell 8 is enclosed within the front end outside of screw rod 2.Between two active supporting arms 5, be connected with a back-moving spring 9, the front end of each active supporting arm 5 is connected with a shifting block 4, and shifting block 4 cross sections are L-type, and two shifting blocks 4 are symmetrical arranged back-to-back.In the present embodiment, the across back of shifting block 4 is 6MM, and the thickness of shifting block is 1MM, and shifting block 4 is 25CM to the distance B of stock 1 rear end, and the diameter of screw rod 2 is 6MM.
Open the door in operation at vertebral plate, first two shifting blocks are close together back-to-back, then shifting block are injected in the patient's who offers in advance vertebral plate gap to slowly rotating operation handle, screw rod is turned clockwise in stock, screw rod worms, and promotes forward screw shell, and it is large that the angle of two connecting rods becomes, strut two active supporting arms, thereby make two shifting blocks separately, one of them shifting block is stirred the vertebral plate of a side and is opened, and completes vertebral plate and opens the door; Otherwise, being rotated counterclockwise screw rod, screw rod retreats, and pulls back screw shell, and two connecting rod angles diminish, and active supporting arm draws in, and two shifting blocks are close.By controlling the distance of advancing of screw rod, can effectively control the dynamics that two shifting blocks separate, make vertebral plate realize appropriateness and open the door, can avoid overexertion and vertebral plate phenomenon of rupture occurs, guarantee that vertebral plate opens the door smoothly, subsequent procedures is successfully normally carried out.
Embodiment 2: the cervical vertebra plate door opener of the present embodiment, as shown in Figure 2, the vertebral plate head that opens the door comprises a lever arm 11 and a fixed arm 12, the rear end of fixed arm 12 is connected with the front end of stock 1, a fixed block 13 is installed on fixed arm 12, lever arm 11 is the L-type of button down, the corner of lever arm 11 is connected on fixed block 13 by bearing pin, the rear end of lever arm 11 is connected with a screw shell 8 by bearing pin, screw shell 8 is enclosed within the front end of screw rod 2, and the front end of the front end of lever arm 11 and fixed arm 12 respectively has a shifting block 4.Between lever arm 11 and fixed arm 12, be connected with a spring playing reset role 14.All the other structures are with embodiment 1.
Open the door in operation at vertebral plate, first two shifting blocks are close together back-to-back, then shifting block is injected in the patient's who offers in advance vertebral plate gap, slowly rotating operation handle turns clockwise screw rod in stock, screw rod worms, promote forward screw shell, lever arm turns clockwise, and the shifting block on lever arm is slowly away from the shifting block on fixed arm, shifting block on lever arm is stirred the vertebral plate of a side and is opened, and completes vertebral plate and opens the door; When there is no the masterpiece used time on operating grip, under the effect of recoil of spring power, lever arm is rotated counterclockwise, and two shifting blocks are close.By controlling the distance of advancing of screw rod, can effectively control the angle that lever arm turns clockwise, shifting block is stirred the dynamics of vertebral plate, making vertebral plate realize appropriateness opens the door, can avoid overexertion and vertebral plate phenomenon of rupture occurs, guarantee that vertebral plate opens the door smoothly, subsequent procedures is successfully normally carried out.
Embodiment 3: the cervical vertebra plate door opener of the present embodiment, as shown in Figure 3, the vertebral plate head that opens the door comprises a lever arm 11 and a fixed arm 12, fixed arm 12 has a chute 15 towards a side of lever arm 11, the side of screw shell 8 is connected with a slide block 16 towards fixed arm 12, and slide block 16 is embedded in chute 15.All the other structures are with embodiment 2.
When screw rod advances, promote forward screw shell, slide block moves forward in chute, guarantees that the direction that screw shell moves forward can not be offset, and guarantees that shifting block is firmly accurate on vertebral plate, can stir more reliably vertebral plate, completes vertebral plate and opens the door.
Claims (10)
1. a cervical vertebra plate door opener, it is characterized in that comprising stock (1), screw rod (2) and the vertebral plate head that opens the door, screw rod (2) is located in stock (1), screw rod (2) and stock (1) are threaded, the front end of screw rod (2) and the described vertebral plate head that opens the door is connected, and the rear end of screw rod (2) is provided with operating grip (3), and described vertebral plate opens the door and is provided with two symmetrically arranged shifting blocks (4), shifting block (4) cross section is L-type, and two shifting blocks (4) arrange back-to-back.
2. cervical vertebra plate door opener according to claim 1, it is characterized in that the described vertebral plate head that opens the door comprises two active supporting arms (5) and a link assembly, the front end of each active supporting arm (5) is provided with the shifting block (4) described in, the front end of described stock (1) is provided with two fixed support arms (6) that extend out, the front end of fixed support arm (6) connects the rear end of active supporting arm (5) by bearing pin, described link assembly is located in the space that active supporting arm (5) and fixed support arm (6) surround, link assembly comprises two connecting rods (7) and a screw shell (8), one end of two connecting rods (7) and a screw shell (8) links together by bearing pin, the other end of two connecting rods (7) is connected on two active supporting arms (5) by bearing pin respectively, the front end of described screw rod (2) is located in the other end of screw shell (8).
3. cervical vertebra plate door opener according to claim 2, the junction point that it is characterized in that described connecting rod (7) and described active supporting arm (5) be positioned at the mid point of active supporting arm (5) or be positioned at the mid point of active supporting arm (5) and front end between between.
4. according to the cervical vertebra plate door opener described in claim 2 or 3, it is characterized in that being connected with a back-moving spring (9) between described two active supporting arms (5).
5. cervical vertebra plate door opener according to claim 1, it is characterized in that the described vertebral plate head that opens the door comprises a lever arm (11) and a fixed arm (12), the front end of the rear end of fixed arm (12) and described stock (1) is connected, fixed arm (12) is provided with a fixed block (13), lever arm (11) is the L-type of button down, the corner of lever arm (11) is connected on described fixed block (13) by bearing pin, the rear end of lever arm (11) is connected with a screw shell (8) by bearing pin, the front end of described screw rod (2) is located in screw shell (8), the front end of described lever arm (11) and the front end of fixed arm (12) are respectively provided with the shifting block (4) described in.
6. cervical vertebra plate door opener according to claim 5, is characterized in that being connected with a spring (14) between described lever arm (11) and fixed arm (12).
7. according to the cervical vertebra plate door opener described in claim 5 or 6, it is characterized in that described fixed arm (12) is provided with a chute (15) towards a side of lever arm (11), described screw shell (8) is provided with the slide block (16) towards fixed arm (12), and slide block (16) is embedded in described chute (15).
8. according to the cervical vertebra plate door opener described in claim 1 or 2 or 5, it is characterized in that the outer gripping handle (17) that is arranged with of described stock (1), gripping handle (17) is positioned at the rear end of stock (1), and the lateral wall of gripping handle (17) is provided with waveform anti-slip veins.
9. according to the cervical vertebra plate door opener described in claim 1 or 2 or 5, it is characterized in that the rounded or hexagon of described operating grip (3), the sidewall of operating grip (3) is provided with anti-slip veins.
10. according to the cervical vertebra plate door opener described in claim 1 or 2 or 5, the across back that it is characterized in that described shifting block (4) is 3～10MM, the thickness of shifting block is 0.5～2MM, described shifting block (4) is 15～30CM to the distance B of stock (1) rear end, and the diameter of described screw rod (2) is 4～8MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870069.0U CN203662878U (en) | 2013-12-27 | 2013-12-27 | Cervical vertebra plate door opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870069.0U CN203662878U (en) | 2013-12-27 | 2013-12-27 | Cervical vertebra plate door opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203662878U true CN203662878U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320870069.0U Expired - Fee Related CN203662878U (en) | 2013-12-27 | 2013-12-27 | Cervical vertebra plate door opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203662878U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105748138A (en) * | 2014-12-26 | 2016-07-13 | 林仲可 | Anterior dislocation reduction fixator for atlantoaxial joint |
| WO2017107673A1 (en) * | 2015-12-22 | 2017-06-29 | 深圳市第二人民医院 | Minimally-invasive collagen membrane clamper for tissue-engineered cartilage transplant |
| CN108042219A (en) * | 2017-12-21 | 2018-05-18 | 四川大学华西医院 | The vertebral plate measuring instrument of slotting position is determined in performing the operation for single open-door |
| CN108283509A (en) * | 2018-01-06 | 2018-07-17 | 张艳梅 | A kind of orthopaedics Minimally Invasive Surgery adjusting extension fixture |
| CN115227333A (en) * | 2022-06-02 | 2022-10-25 | 燕山大学 | Cutting and taking integrated angle-adjustable curet for intervertebral fusion operation |
-
2013
- 2013-12-27 CN CN201320870069.0U patent/CN203662878U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105748138A (en) * | 2014-12-26 | 2016-07-13 | 林仲可 | Anterior dislocation reduction fixator for atlantoaxial joint |
| WO2017107673A1 (en) * | 2015-12-22 | 2017-06-29 | 深圳市第二人民医院 | Minimally-invasive collagen membrane clamper for tissue-engineered cartilage transplant |
| CN108042219A (en) * | 2017-12-21 | 2018-05-18 | 四川大学华西医院 | The vertebral plate measuring instrument of slotting position is determined in performing the operation for single open-door |
| CN108042219B (en) * | 2017-12-21 | 2020-03-10 | 四川大学华西医院 | Vertebral plate measuring instrument for determining slotting position in single-door operation |
| CN108283509A (en) * | 2018-01-06 | 2018-07-17 | 张艳梅 | A kind of orthopaedics Minimally Invasive Surgery adjusting extension fixture |
| CN108283509B (en) * | 2018-01-06 | 2020-01-10 | 山东省肿瘤防治研究院（山东省肿瘤医院） | Adjusting and expanding device for orthopedic minimally invasive surgery |
| CN115227333A (en) * | 2022-06-02 | 2022-10-25 | 燕山大学 | Cutting and taking integrated angle-adjustable curet for intervertebral fusion operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 |