CN204636518U - Dilator in vertebral body - Google Patents
Dilator in vertebral body Download PDFInfo
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- CN204636518U CN204636518U CN201520125627.XU CN201520125627U CN204636518U CN 204636518 U CN204636518 U CN 204636518U CN 201520125627 U CN201520125627 U CN 201520125627U CN 204636518 U CN204636518 U CN 204636518U
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Abstract
This utility model relates to dilator in a kind of vertebral body, belongs to medical instruments field, and be applicable to vertebral body ostelytic metastases tumor, Treatment of osteoporotic spinal compression fractures etc., are applicable in bone surgery.In vertebral body, dilator is made up of swollen body (1) and expansion core (2), there is the hole (4) of a concentric swollen body (1) left end circular shaft (3) inside, thin-walled (8) easy bending distortion when stressed of the outside design at hole (7) two ends, left and right, right side taper surface design (10) is conducive to swollen body (1) and implants vertebral body, expansion core (2) left end circular shaft (12), there are screwed hole (13) and hole (14) in inside, middle part is circular protrusion (15), short round shape groove (17) is had at oval shape groove (16) offside, oval shape groove (19) offside has short round shape groove (18) and (20), axle (21) middle part is designed with oval shape groove (22), under C-arm X-ray machine monitors, insert dilator in vertebral body and support to lesion locations, pull expansion core (2) left, swollen body (1) distending reaches the effect supporting vertebral body, finally inject bone cement.
Description
Technical field
This utility model relates to dilator in a kind of vertebral body, belongs to medical instruments field, and be applicable to vertebral body ostelytic metastases tumor, Treatment of osteoporotic spinal compression fractures etc., are applicable in bone surgery.
Background technology
Vertebroplasty has the history of decades for the defect left over after strengthening pedicle screw and filling tumor resection as a kind of open surgery, for some case, because the risk of open surgery is too large, and doctor and patient is halted, therefore there is percutaneous vertbroplasty (PVP), percutaneous vertbroplasty refers to that percutaneous increases vertebral body strength and stability by injecting bone cement in pedicle of vertebral arch or the export-oriented vertebral body of pedicle of vertebral arch to reach, prevent from subsiding, alleviating pain, even part recovers a kind of Wicresoft spinal surgery technology for the purpose of vertebral height.PVP in 1994 (method of application Deramond) is taken the lead in making referrals to the U.S. by University of Virginia.From then on, PVP becomes a kind of common method for the treatment of painful vertebral body disease.The application of percutaneous vertbroplasty is promoted gradually, except vertebral hemangioma, myeloma, ostelytic metastases tumor, is applied to the patient of Osteoporotic Vertebral Compression Fractures with intractable pain more.Along with the life span of neoplasm metastasis patient extends, they the final stage of quality of life and disease can be movable requirement also improve thereupon.In spinal metastasis patient, it is reported that PVP can alleviating pain and structurally strengthen by the vertebral body of molten osteoclasia, the misery of patient is alleviated and daily weight-bearing activities can be continued, better therapeutic effect is arrived in order to make patient experiences, have developed a kind of simple to operate on this basis, dilator in vertebral body rational in infrastructure.
Summary of the invention
This utility model embodiment technical problem to be solved is, provides dilator in a kind of vertebral body with easy to operate, novel structure.
In described vertebral body, dilator is made up of swollen body and expansion core.
There is the first hole of a concentric described swollen body left end circular shaft inside, hole wall there is groove, first circular shaft connects the second circular shaft, thin-walled easy bending distortion when stressed of the outside design in the second two ends, left and right, hole, swollen cubical expansion can be made to open, and the arc in outside is symmetrical up and down, and the arcwall face in outside can prevent the damage to cone, on the right side of swollen body, taper surface is designed with and is beneficial to swollen body implantation vertebral body, and right-hand member has a circular hole.
Described expansion core left end the 3rd circular shaft, there is screwed hole inside, middle part be side by side in trapezoidal circular protrusion, and be designed with the first oval shape groove, the first short round shape groove is had at the first oval shape groove offside, first uniform six of short round shape groove, first axle middle part is designed with the 3rd oval shape groove, 3rd uniform four of oval shape groove, in vertebral body, dilator injects bone cement by the 3rd oval shape groove, right-hand member second axle matches with the right-hand member circular hole of swollen body, after expansion core is loaded swollen body, pull expansion core left, the thin-walled place of swollen body is squeezed power effect flexural deformation, thus the arc of swollen body upper end is upturned, the arc of lower end tilts downwards, swollen cubical expansion is opened, reach the effect supporting cone.
Vertebroplasty can recover old people's mobility as early as possible, be applicable to senile osteoporosis vertebral compression fracture, due to above-mentioned Some features, it be particularly suitable for the gerontal patient of many, the unsuitable long-term beds of medical problems occurring, the sharp ache person of being impatient at, through effect of conservative treatment gastrointestinal disease patient repeatedly.
In vertebral body, the advantage of dilator is as follows: 1. percutaneous puncture is without the need to open surgery, and wound is little; 2. safety is high, can prevent nerve and blood vessel injury in operation process, occurs without all the other severe complications; 3. curative effect is certainly, patient's immediate postoperative or in several days lumbago and backache symptom obviously alleviate or disappear, and curative effect can long term maintenance.
This utility model adopts novel project organization, simple to operate, practical, is suitable for Orthopedic Clinical and applies.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is the structure chart of this utility model distending.
Fig. 3 is the structure chart of swollen body 1 of the present utility model.
Fig. 4 is the structure chart of expansion core 2 of the present utility model.
Fig. 5 is the sectional view of the A-A of expansion core 2 of the present utility model.
Fig. 6 is the sectional view of the B-B of expansion core 2 of the present utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
In this utility model embodiment vertebral body, dilator is made up of swollen body 1 and expansion core 2, there is the first hole 4 of a concentric swollen body 1 left end circular shaft 3 inside, hole wall there is groove 5, first circular shaft 3 connects the second circular shaft 6, thin-walled 8 easy bending distortion when stressed of the outside design in the second two ends, hole about 7, swollen body 1 distending can be made, the arc about 9 in outside is symmetrical, the arcwall face in outside can prevent the damage to cone, on the right side of swollen body 1, taper surface design 10 is conducive to swollen body 1 and implants vertebral body, right-hand member has a circular hole 11, expansion core 2 left end the 3rd circular shaft 12, there are screwed hole 13 and the 3rd hole 14 in inside, middle part be side by side in trapezoidal circular protrusion 15, and be designed with the first oval shape groove 16 and the second oval shape groove 19, the first short round shape groove 17 is had at the first oval shape groove 16 offside, first uniform six of short round shape groove 17, second oval shape groove 19 offside has the second short round shape groove 18 and the 3rd short round shape groove 20, second short round shape groove 18 and uniform six of the 3rd short round shape groove 20, first axle 21 middle part is designed with the 3rd oval shape groove 22, 3rd uniform four of oval shape groove 22, in vertebral body, dilator injects bone cement by the 3rd oval shape groove 22, right-hand member second axle 23 matches with the right-hand member circular hole 11 of swollen body 1, after expansion core 2 is loaded swollen body 1, pull expansion core 2 left, thin-walled 8 place of swollen body 1 is squeezed power effect flexural deformation, thus the arc 9 of swollen body 1 upper end is upturned, the arc 9 of lower end tilts downwards, make swollen body 1 distending, reach the effect supporting cone.Preoperative detailed disease history inquire, physical examination and relevant image analysis are with the position of clear and definite pathological changes, character, vertebral body involved, comprise collapse of vertebra degree, pedicle of vertebral arch and vertebral body trailing edge sclerotin are destroyed situation and intervertebral foramina, dura mater involvement, and get rid of the situations such as intervertebral disk hernia, spinal cord and nerve roots compressing, the pain of discogenic, Minor articulus pathological changes and spinal canal stenosis.
In art after routine disinfection drape, skin entry point is determined under C-arm X-ray machine monitors, local anaesthesia infiltrates to periosteum, on skin, an osculum is cut centered by entry point, insert dilator in vertebral body and support to lesion locations, to confirm under C-arm X-ray machine in vertebral body that dilator is positioned at vertebral pedicle puncture point and consistent with pedicle of vertebral arch direction, pull expansion core 2 left, thin-walled 8 place of swollen body 1 is squeezed power effect flexural deformation, thus the arc 9 of swollen body 1 upper end is upturned, the arc 9 of lower end tilts downwards, make swollen body 1 distending, reach the effect supporting cone, bone cement or syringeability artificial bone are in harmonious proportion to proper viscosity, with syringe, bone cement pressurization is injected vertebral body through expansion core 2, filling and the spread condition (once there is the seepage of bone cement, stopping injection immediately) of infusion need be paid close attention under the C-arm X-ray machine of position, side in injection process, average injection rate is about 5.5ml at thoracic vertebra, the therapeutic effect that 6-8ml can reach the best is about at lumbar vertebra.
Claims (3)
1. dilator in vertebral body, it is characterized in that: be made up of swollen body (1) and expansion core (2), there is first hole (4) of a concentric described swollen body (1) left end circular shaft (3) inside, hole wall there is groove (5), first circular shaft (3) connects the second circular shaft (6), thin-walled (8) easy bending distortion when stressed of the outside design at the second hole (7) two ends, left and right, can make swollen body (1) distending, described expansion core (2) left end the 3rd circular shaft (12), there are screwed hole (13) and the 3rd hole (14) in inside, middle part be side by side in trapezoidal circular protrusion (15), and be designed with the first oval shape groove (16) and the second oval shape groove (19), the first short round shape groove (17) is had at the first oval shape groove (16) offside, first uniform six of short round shape groove (17), second oval shape groove (19) offside has the second short round shape groove (18) and the 3rd short round shape groove (20), second short round shape groove (18) and uniform six of the 3rd short round shape groove (20), first axle (21) middle part is designed with the 3rd oval shape groove (22), 3rd uniform four of oval shape groove (22).
2. dilator in vertebral body according to claim 1, it is characterized in that: the arc (9) in outside is symmetrical up and down, the arcwall face in outside can prevent the damage to cone, swollen body (1) right side taper surface design (10) is conducive to swollen body (1) and implants vertebral body, and right-hand member has a circular hole (11).
3. dilator in vertebral body according to claim 1, it is characterized in that: in vertebral body, dilator injects bone cement by the 3rd oval shape groove (22), right-hand member second axle (23) matches with the right-hand member circular hole (11) of swollen body (1), after expansion core (2) is loaded swollen body (1), pull expansion core (2) left, thin-walled (8) place of swollen body (1) is squeezed power effect flexural deformation, thus the arc (9) of swollen body (1) upper end is upturned, the arc (9) of lower end tilts downwards, make swollen body (1) distending, reach the effect supporting vertebral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125627.XU CN204636518U (en) | 2015-03-05 | 2015-03-05 | Dilator in vertebral body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520125627.XU CN204636518U (en) | 2015-03-05 | 2015-03-05 | Dilator in vertebral body |
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| CN204636518U true CN204636518U (en) | 2015-09-16 |
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| CN201520125627.XU Active CN204636518U (en) | 2015-03-05 | 2015-03-05 | Dilator in vertebral body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137473A (en) * | 2016-08-10 | 2016-11-23 | 邹德威 | Lumbar vertebral posterior multi-functional Intervertebral disc fusion device |
| CN108498133A (en) * | 2018-06-22 | 2018-09-07 | 王志荣 | A kind of multi-functional terminal plate of vertebral body processor |
-
2015
- 2015-03-05 CN CN201520125627.XU patent/CN204636518U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137473A (en) * | 2016-08-10 | 2016-11-23 | 邹德威 | Lumbar vertebral posterior multi-functional Intervertebral disc fusion device |
| CN106137473B (en) * | 2016-08-10 | 2018-05-18 | 邹德威 | The multi-functional Intervertebral disc fusion device of lumbar vertebral posterior |
| CN108498133A (en) * | 2018-06-22 | 2018-09-07 | 王志荣 | A kind of multi-functional terminal plate of vertebral body processor |
| CN108498133B (en) * | 2018-06-22 | 2024-01-05 | 王志荣 | Multifunctional vertebral endplate processor |
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| Date | Code | Title | Description |
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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: 20160217 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 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210104 Address after: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee after: BEIJING FULE SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 101204 West Beijing District of Pinggu City Mafang Industrial Zone No. 50 Patentee before: Hu Huanyu |
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| TR01 | Transfer of patent right |