CN110811801A - Pedicle screw-rod system for lifting and restoring vertebral column vertebral body - Google Patents
Pedicle screw-rod system for lifting and restoring vertebral column vertebral body Download PDFInfo
- Publication number
- CN110811801A CN110811801A CN201911206060.8A CN201911206060A CN110811801A CN 110811801 A CN110811801 A CN 110811801A CN 201911206060 A CN201911206060 A CN 201911206060A CN 110811801 A CN110811801 A CN 110811801A
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- rod
- pressing
- sleeve
- pedicle screw
- extension sleeve
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- 230000009467 reduction Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
-
- 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
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
-
- 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The application discloses a vertebral pedicle screw-rod system for lifting and resetting a vertebral body of a spine, which comprises a vertebral pedicle screw, a rod, a resetting extension sleeve, a rod pressing sleeve and a rod pressing wrench, wherein the resetting extension sleeve, the rod pressing sleeve and the rod pressing wrench are matched with the vertebral pedicle screw; the pressing rod spanner is in threaded connection with the reset extension sleeve, a step portion is arranged in the middle section of the pressing rod spanner, the step portion supports the pressing rod sleeve, and the pressing rod spanner supports the pressing rod sleeve to drive a pressing rod to the bottom of the U-shaped groove through rotation.
Description
Technical Field
The application belongs to the field of medical equipment, and particularly relates to a pedicle screw rod system for lifting and resetting a vertebral column vertebral body.
Background
In the prior art, the development of the minimally invasive spine surgery technology has the advantages of small wound, less pain, quick recovery, good curative effect, less complications, low cost and the like for patients. Meanwhile, higher requirements are provided for medical instruments of related minimally invasive spine surgery; in the traditional operation, the reduction forceps (frog type and gun type) for carrying out vertebral body lifting reduction for reducing the vertebral body after cutting the tissue are designed for the open type operation, the structure of the instrument is larger, and the instrument is not suitable for the minimally invasive operation with small wound surface. Therefore, it is desirable to provide an instrument for lifting and repositioning of vertebral bodies of the spine that is suitable for minimally invasive surgery.
Disclosure of Invention
The invention aims to provide a pedicle screw rod system for lifting and restoring vertebral bodies of a spine, which overcomes the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a pedicle screw and rod system for lifting and resetting a vertebral column vertebral body comprises a pedicle screw, a rod, a resetting extension sleeve, a rod pressing sleeve and a rod pressing spanner, wherein the resetting extension sleeve, the rod pressing sleeve and the rod pressing spanner are matched with the pedicle screw; the pressing rod spanner is in threaded connection with the reset extension sleeve, a step portion is arranged in the middle section of the pressing rod spanner, the step portion supports the pressing rod sleeve, and the pressing rod spanner supports the pressing rod sleeve to drive a rod to the bottom of the U-shaped groove through rotation.
Preferably, the two ends of the bottom of the nail seat are provided with positioning holes, the reset extension sleeve is connected with the bottom of the nail seat and extends inwards to form a protruding portion, and the protruding portion is matched with the positioning holes.
Preferably, the upper end of the U-shaped groove is upwards inclined to form a positioning notch, and the inner part of the reset extension sleeve is inwards inclined to form an inclined plane boss matched with the positioning notch.
Preferably, the interior of the pressure bar wrench is hollow and provided with internal threads, and the internal threads are matched with the surface threads of the reset extension sleeve.
Compared with the prior art, the pedicle screw rod system lengthens the pedicle screw seat part and is provided with the instrument positioning holes and the guide positioning notches on the left and the right. The pedicle screw is implanted into a vertebral body, after a rod is threaded, the reset extension sleeve is pushed along the notch, the reset extension sleeve can be fixed on the screw seat, the tail of the reset extension sleeve is provided with a thread design, then the rod pressing sleeve is sleeved on the reset extension sleeve, finally the wrench is screwed on the thread of the reset extension sleeve, the rod can be pressed into the screw groove by rotating the wrench, and the vertebral body is pulled and reset to a preset position
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a pedicle screw and rod system for lifting and repositioning of vertebral bodies of the spine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pedicle screw rod system for lifting and repositioning of vertebral bodies of a spine according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a reduction extension sleeve of a pedicle screw and rod system for lifting and reducing vertebral bodies of a spine according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a rod pressing sleeve of a pedicle screw rod system for lifting and reduction of vertebral bodies in a vertebral column according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a rod pressing wrench of a pedicle screw rod system for lifting and repositioning a vertebral body of a spine according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-5, a pedicle screw and rod system for lifting and reduction of vertebral bodies of spine comprises a pedicle screw 1, a rod 2, a reduction extension sleeve 3, a rod pressing sleeve 4 and a rod pressing wrench 5, wherein the reduction extension sleeve 3, the rod pressing sleeve 4 and the rod pressing wrench are matched with the pedicle screw. The pedicle screw 1 comprises a head 101 and a screw seat 102 which are integrally formed, two sides of the screw seat 102 extend upwards to form a U-shaped groove 106, a pressing rod 2 is transversely arranged in the screw seat groove 106, the bottom of the U-shaped groove 106 of the screw seat is provided with a plurality of clamping parts 104, the clamping parts 104 are used for clamping the rod 2, a resetting extension sleeve 2 is sleeved on the screw seat 102, and a resetting extension sleeve 3 is sleeved on the screw seat 102 together with the U-shaped groove 106; the upper end surface of the resetting extension sleeve 3 is provided with threads 302, the pressing rod sleeve 4 is arranged on the resetting extension sleeve 3, two sides of the lower end of the pressing rod sleeve 4 are inwards sunken to form a groove 401, and the groove 401 abuts against the rod 2; pressing rod spanner 5 and 3 threaded connection of extension cover that resets, 5 sections are provided with step portion 502 in the pressing rod spanner, and step portion 502 supports and holds pressing rod sleeve 4, supports through rotatory pressing rod spanner 5 and holds pressing rod sleeve 4 and drive stick 2 to U font recess 106 tank bottoms.
Preferably, both ends of the bottom of the nail seat 102 are provided with positioning holes 103, the reset extension sleeve 3 is connected with the bottom of the nail seat 102 and extends inwards to form a protruding part 301, and the protruding part 301 is matched with the positioning holes 103.
Preferably, the upper end of the U-shaped groove 106 is formed with a positioning notch 105 inclined upward, and the inside of the reduction extension sleeve 3 is inclined inward to form an inclined plane boss 303 matched with the positioning notch 105.
In the technical scheme, the reset extension sleeve 3 is connected with the nail seat 102 through the clamping and finishing of the positioning hole 103 and the boss 301, and the matching of the positioning notch 105 and the inclined plane boss 303 is convenient for the reset extension sleeve 3 to be connected with the nail seat 102, so that the operation is convenient.
Preferably, the inside of the pressure bar wrench 5 is provided with an internal thread 501, and the internal thread 501 is matched with the surface thread 302 of the reset extension sleeve 3.
In conclusion, the pedicle screw rod system lengthens the pedicle screw seat part and is provided with the instrument positioning holes and the guide positioning notches on the left and the right. The pedicle screw is implanted into a vertebral body, after a rod is threaded, the reset extension sleeve is pushed along the notch, the reset extension sleeve can be fixed on the screw seat, the tail of the reset extension sleeve is provided with a thread design, then the rod pressing sleeve is sleeved on the reset extension sleeve, finally the wrench is screwed on the thread of the reset extension sleeve, the rod can be pressed into the screw groove by rotating the wrench, and the vertebral body is pulled and reset to a preset position
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.
Claims (4)
1. A pedicle screw rod system for lifting and resetting vertebral bodies of a spine is characterized in that: the pedicle screw comprises a pedicle screw, a rod, a reset extension sleeve, a rod pressing sleeve and a rod pressing wrench, wherein the reset extension sleeve, the rod pressing sleeve and the rod pressing wrench are matched with the pedicle screw, the pedicle screw comprises a screw head and a screw seat which are integrally formed, two sides of the screw seat extend upwards to form a U-shaped groove, the rod is transversely arranged in the screw seat groove, the bottom of the U-shaped groove of the screw seat is provided with a plurality of clamping parts, the clamping parts are used for clamping the rod, the reset extension sleeve is sleeved on the screw seat, the upper end surface of the reset extension sleeve is provided with threads, the rod pressing sleeve is sleeved on the reset extension sleeve, two sides of the lower end of the rod pressing sleeve are inwards sunken to form grooves, and the grooves abut against the rod; the pressing rod spanner is in threaded connection with the reset extension sleeve, a step portion is arranged in the middle section of the pressing rod spanner, the step portion supports the pressing rod sleeve, and the pressing rod spanner supports the pressing rod sleeve to drive a rod to the bottom of the U-shaped groove through rotation.
2. A pedicle screw and rod system for lifting reduction of a vertebral body of a spine as claimed in claim 1, wherein: the nail seat is characterized in that positioning holes are formed in two ends of the bottom of the nail seat, the reset extension sleeve is connected with the bottom of the nail seat and extends inwards to form a protruding portion, and the protruding portion is matched with the positioning holes.
3. A pedicle screw and rod system for lifting reduction of a vertebral body of a spine as claimed in claim 1, wherein: the upper end of the U-shaped groove is upwards inclined to form a positioning notch, and the inner part of the reset extension sleeve is inwards inclined to form an inclined plane boss matched with the positioning notch.
4. A pedicle screw and rod system for lifting reduction of a vertebral body of a spine as claimed in claim 1, wherein: the interior of the pressure bar wrench is hollow and provided with internal threads, and the internal threads are matched with the surface threads of the reset extension sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206060.8A CN110811801A (en) | 2019-11-29 | 2019-11-29 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206060.8A CN110811801A (en) | 2019-11-29 | 2019-11-29 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110811801A true CN110811801A (en) | 2020-02-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911206060.8A Pending CN110811801A (en) | 2019-11-29 | 2019-11-29 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110811801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440235A (en) * | 2021-06-22 | 2021-09-28 | 浙江德康医疗器械有限公司 | Rod pressing system and method for minimally invasive spine surgery |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102028533A (en) * | 2011-01-13 | 2011-04-27 | 邱勇 | Spinal deformation correcting device and using method thereof |
| CN102247201A (en) * | 2011-08-12 | 2011-11-23 | 贺新宁 | Percutaneous minimally invasive pedicle screw/rod internal fixation system |
| CN102920503A (en) * | 2012-11-15 | 2013-02-13 | 寇万红 | Pedicle screw and pedicle screw connector |
| US20150142067A1 (en) * | 2013-11-15 | 2015-05-21 | K2M, Inc. | System for corrective spinal surgery and method of use |
| CN104783879A (en) * | 2015-05-12 | 2015-07-22 | 山东威高骨科材料股份有限公司 | Pedicle screw and bar pressing device |
| CN206214167U (en) * | 2016-03-22 | 2017-06-06 | 北京中安泰华科技有限公司 | A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail |
| CN206621412U (en) * | 2016-12-16 | 2017-11-10 | 黄冈市中医医院 | Pedicle screw lifts restorer |
| CN208784882U (en) * | 2018-04-04 | 2019-04-26 | 江苏创立康医疗器械有限公司 | A kind of lifting resetting orthopedic extension rod |
| CN211723386U (en) * | 2019-11-29 | 2020-10-23 | 苏州欣荣博尔特医疗器械有限公司 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
-
2019
- 2019-11-29 CN CN201911206060.8A patent/CN110811801A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102028533A (en) * | 2011-01-13 | 2011-04-27 | 邱勇 | Spinal deformation correcting device and using method thereof |
| CN102247201A (en) * | 2011-08-12 | 2011-11-23 | 贺新宁 | Percutaneous minimally invasive pedicle screw/rod internal fixation system |
| CN102920503A (en) * | 2012-11-15 | 2013-02-13 | 寇万红 | Pedicle screw and pedicle screw connector |
| US20150142067A1 (en) * | 2013-11-15 | 2015-05-21 | K2M, Inc. | System for corrective spinal surgery and method of use |
| CN104783879A (en) * | 2015-05-12 | 2015-07-22 | 山东威高骨科材料股份有限公司 | Pedicle screw and bar pressing device |
| CN206214167U (en) * | 2016-03-22 | 2017-06-06 | 北京中安泰华科技有限公司 | A kind of backbone minimal invasion pedicle nail nail seat and extension piece draw bail |
| CN206621412U (en) * | 2016-12-16 | 2017-11-10 | 黄冈市中医医院 | Pedicle screw lifts restorer |
| CN208784882U (en) * | 2018-04-04 | 2019-04-26 | 江苏创立康医疗器械有限公司 | A kind of lifting resetting orthopedic extension rod |
| CN211723386U (en) * | 2019-11-29 | 2020-10-23 | 苏州欣荣博尔特医疗器械有限公司 | Pedicle screw-rod system for lifting and restoring vertebral column vertebral body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440235A (en) * | 2021-06-22 | 2021-09-28 | 浙江德康医疗器械有限公司 | Rod pressing system and method for minimally invasive spine surgery |
| CN113440235B (en) * | 2021-06-22 | 2023-02-24 | 浙江德康医疗器械有限公司 | Rod pressing system and method for minimally invasive spine surgery |
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