CN213641155U - Vertebral body forming positioning guider for thoracolumbar vertebral compression fracture - Google Patents
Vertebral body forming positioning guider for thoracolumbar vertebral compression fracture Download PDFInfo
- Publication number
- CN213641155U CN213641155U CN202022270098.6U CN202022270098U CN213641155U CN 213641155 U CN213641155 U CN 213641155U CN 202022270098 U CN202022270098 U CN 202022270098U CN 213641155 U CN213641155 U CN 213641155U
- Authority
- CN
- China
- Prior art keywords
- arc
- shaped
- sleeve
- puncture needle
- positioning
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model provides a vertebral body forming and positioning guider for thoracolumbar vertebral compression fracture, which comprises an angle adjusting mechanism, wherein the angle adjusting mechanism consists of an arc-shaped inner sleeve part and an arc-shaped outer sleeve part which are sleeved inside and outside, the arc-shaped inner sleeve part is connected with the arc-shaped outer sleeve part through the pull adjustment of a meshed arc-shaped rack and an adjusting gear, and is matched with a limiting chute through a marking T-shaped nut to be screwed and fixedly connected; the outer sides of the arc-shaped inner sleeve piece and the arc-shaped outer sleeve piece are fixedly provided with a first sleeve for positioning and limiting the Kirschner wire and a second sleeve for positioning the puncture needle with the needle core; the puncture needle is of a hollow structure, the head end and the tail end of the puncture needle are communicated, and scales are uniformly distributed on the outer surface of the puncture needle. The utility model discloses simple structure and low price, it is convenient nimble to use, in the chest lumbar vertebrae compressibility fracture vertebroplasty, ensure that unilateral pedicle of vertebral arch puncture is located the centrum central line, both can improve the precision of pjncture needle, improve the operation success rate, can avoid the both sides puncture again for the misery and the operation risk that the patient brought.
Description
Technical Field
Embodiments of the present disclosure relate generally to the field of medical instruments, and more particularly to intraoperative auxiliary positioning and guidance devices, and more particularly to a vertebroplasty positioning guide for thoracolumbar vertebral compression fractures.
Background
The vertebroplasty usually is performed under the monitoring of C-arm fluoroscopy, a percutaneous pedicle of vertebral arch is punctured to reach the vertebral body, a channel is formed by the puncture of the puncture needle, and then medical bone cement with high viscosity is injected into the vertebral body. Because open operation direct vision is lacked, the needle insertion angle and direction are often adjusted through multiple C-arm perspective at present to accurately insert the needle, otherwise, the danger of penetrating into a vertebral canal is caused, and the needle insertion is needed for the vertebral pedicles at two sides, so that the operation risk is increased, the pain of a patient is increased, the operation time is long, and the risk is high.
The vertebroplasty is ideally to puncture the center of the vertebral body through the pedicle of one side, so that the injected bone cement can be uniformly distributed on the two sides of the vertebral body, which has higher requirements on the clinical experience and the operation technical level of an operating physician, and the puncture is performed only according to an approximately estimated angle, so that a more accurate puncture angle can be found by needing multiple punctures and multiple corrections, but the puncture is not painful for a patient; in addition, the X-ray exposure of the patient and the doctor is relatively large during the operation.
In addition, in order to avoid damaging the spinal cord, the lateral blood vessels and the nervous tissues, the kirschner wires need to enter the vertebral body through the pedicles at a certain angle during puncture, in order to ensure that bone cement is injected into the middle position of the vertebral body to ensure the operation effect, most of the vertebral pedicles on two sides need to be respectively subjected to puncture needle operation to achieve better puncture and treatment effects, but the vertebral pedicles on multiple sides are punctured, so that the risk and the cost are increased.
Furthermore, although the existing pedicle guiding and positioning device can adopt the computer navigation technology to aim the pedicle, the structure is complex and the price is high, and the device can not be equipped in a general hospital or the patient can hardly bear the high cost.
Consequently, design a simple structure and price cheaper, use convenient, can nimble angle modulation, improve precision and the operation success rate of pjncture needle location puncture in the operation of chest lumbar vertebrae fracture vertebroplasty, reduce operation risk and X ray and use the number of times, shorten operation time, and then alleviate the painful vertebroplasty location director of patient is the utility model discloses research and modified purpose.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model discloses lie in providing the centrum shaping location director of chest lumbar vertebrae compressibility fracture, the problem that above-mentioned prior art exists can effectively be solved to this location director.
The technical scheme of the utility model is that:
a vertebral body forming and positioning guider for thoracolumbar vertebral compression fracture, which comprises
The angle adjusting mechanism is an arc-shaped positioning plate with an angle of 25-50 degrees formed by an arc-shaped inner sleeve piece and an arc-shaped outer sleeve piece which are sleeved inside and outside, and the arc-shaped inner sleeve piece is connected with the arc-shaped outer sleeve piece in a drawing and adjusting mode through an arc-shaped rack and an adjusting gear which are meshed with each other;
the adjusting and fixing mechanism comprises a marking T-shaped nut penetrating through the arc-shaped outer sleeve piece and a limiting sliding groove arranged in the middle of the arc-shaped inner sleeve piece, and the arc-shaped inner sleeve piece and the arc-shaped outer sleeve piece are matched, screwed and fixedly connected with the limiting sliding groove through the marking T-shaped nut;
the positioning mechanism comprises a first sleeve and a second sleeve, the first sleeve is fixedly arranged on the outer side edges of the arc-shaped inner sleeve piece and the arc-shaped outer sleeve piece respectively and used for positioning and limiting the Kirschner wire, and the second sleeve is used for positioning the puncture needle;
the puncture needle penetrates through the second sleeve, the puncture needle is of a hollow structure, the head end and the tail end of the puncture needle are communicated, a needle core is arranged in the hollow part in a drawing mode, and scales are uniformly distributed on the outer surface of the puncture needle;
the limiting Kirschner wire penetrates through the first sleeve and the length of the limiting Kirschner wire is smaller than that of the puncture needle, and a convex edge used for limiting the first sleeve to move is fixedly connected to the outer side of the upper end of the limiting Kirschner wire.
The arc rack is fixedly installed on the arc inner sleeve, and the adjusting gear is rotatably installed on the arc outer sleeve through a bearing.
The other side of the adjusting gear connected with the arc-shaped outer sleeve piece extends outwards to form a hexagonal nut.
The arc rack is evenly arranged on the outer arc end face of the arc inner sleeve, and the hexagon nut is rotatably arranged on any one side face of the arc outer sleeve.
The outer arc terminal surface of arc internal member is provided with rectangular hole downwards, the equal relative distribution of side about the rectangular hole the arc rack, adjusting gear installs between two arc racks and rotates rather than the hexagon nut who is connected and install the outer arc terminal surface at arc external sleeve spare.
The inner arc end face of the arc inner sleeve is in matched limit connection with the arc outer sleeve through the guide rail and the sliding block.
The utility model has the advantages that:
(1) the utility model discloses simple structure and price are cheaper, use convenient, can nimble angle modulation, ensure that unilateral pedicle of vertebral arch puncture is located centrum central line, both can improve the puncture precision and the operation success rate of pjncture needle, reducible misery and the operation risk that brings for the patient because of both sides puncture again to and X ray use number of times, shorten the operation time, and then alleviate patient's misery, be applicable to generally can't be equipped with the hospital of high-volume equipment or be difficult to undertake the patient of high-volume expense.
(2) The utility model discloses a spacing pedicle of vertebral arch medial border (normal position), centrum trailing edge (side position) of being fixed in of spacing kirschner wire to fixed mounting adjusts fixed establishment on spacing kirschner wire. The adjusting and fixing mechanism can be used for fixing the puncture needle and adjusting the angle of the puncture needle, flexibly, conveniently and accurately controls the entering depth through the scales displayed on the puncture needle, and ensures that the puncture needle reaches the center of the centrum. Because of spacing kirschner wire length is fixed to the most advanced of spacing kirschner wire is the intersect, and spacing kirschner wire and pjncture needle form and use the arc locating plate radian as the intersection of alignment angle, and then can be convenient and accurate carry out the puncture operation, ensure that the pjncture needle stretches into centrum central authorities, reduce puncture deviation and puncture number of times, combine C type arm perspective, can read out the length that the pjncture needle got into the centrum from the scale of pjncture needle.
(3) The utility model can not only stabilize the positioning adjusting fixing mechanism through the limiting kirschner wire, but also is beneficial to positioning and puncturing of the puncture needle; and the tip of the puncture needle can be used as a limiting protection point, so that the puncture needle is prevented from penetrating into the vertebral canal during puncture, the spinal cord is effectively protected, the risk of operation is reduced, and the success rate is improved.
(4) The angle adjusting mechanism consists of an arc-shaped inner sleeve piece and an arc-shaped outer sleeve piece which are sleeved inside and outside, so that the stability of the angle adjusting mechanism is ensured, and flexible primary drawing adjustment is facilitated; the arc-shaped rack and the adjusting gear are used for fine adjustment of the arc-shaped inner sleeve piece and the arc-shaped outer sleeve piece, and fine angle adjustment is visually and accurately performed according to requirements, so that the angle adjustment accuracy is improved; and finally, the marking T-shaped nut and the limiting sliding groove are utilized to be beneficial to limiting connection of the arc inner sleeve and the arc outer sleeve, more importantly, the arc inner sleeve and the arc outer sleeve can be fixed, the stability is improved, and the follow-up effect is promoted.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
fig. 1 is a schematic structural diagram of the present invention (example 1).
Fig. 2 is a schematic structural view of the arc-shaped inner sleeve in fig. 1.
Fig. 3 is a schematic view of the usage state of fig. 1.
Fig. 4 is a schematic structural view of embodiment 2.
Fig. 5 is a schematic structural view of the arc-shaped inner sleeve in fig. 4.
Fig. 6 is a schematic view of the usage state of fig. 3.
Detailed Description
Example 1: referring to Figs. 1-3, a vertebroplasty positioning guide for thoracolumbar vertebral compression fractures, comprises
The angle adjusting mechanism 1 is an arc-shaped positioning plate with 25-50 degrees formed by an arc-shaped inner sleeve part 101 and an arc-shaped outer sleeve part 102 which are sleeved inside and outside, and the arc-shaped inner sleeve part 101 is connected with the arc-shaped outer sleeve part 102 in a drawing and adjusting mode through an arc-shaped rack 2 and an adjusting gear 3 which are meshed with each other;
the adjusting and fixing mechanism 4 comprises a marking T-shaped nut 401 penetrating through the arc-shaped outer sleeve part 102 and a limiting sliding groove 402 arranged in the middle of the arc-shaped inner sleeve part 101, and the arc-shaped inner sleeve part 101 and the arc-shaped outer sleeve part 102 are matched, screwed and fixedly connected with the limiting sliding groove 402 through the marking T-shaped nut 401;
the positioning mechanism 5 comprises a first sleeve 501 and a second sleeve 502, wherein the first sleeve 501 and the second sleeve 502 are fixedly arranged on the outer side edges of the arc-shaped inner sleeve 101 and the arc-shaped outer sleeve 102 respectively and used for positioning and limiting the kirschner wire 7;
the puncture needle 6 penetrates through the second sleeve 502, the puncture needle 6 is of a hollow structure with a needle core, the head end and the tail end of the puncture needle are communicated, the needle core is arranged in the hollow part in a pulling mode, and scales are uniformly distributed on the outer surface of the puncture needle 6;
the limiting kirschner wire 7 penetrates through the first sleeve 501, the length of the limiting kirschner wire 7 is smaller than that of the puncture needle 6, and a convex edge 701 used for limiting the movement of the first sleeve 501 is fixedly connected to the outer side of the upper end of the limiting kirschner wire 7.
The arc-shaped rack 2 is fixedly arranged on the arc-shaped inner sleeve member 101, and the adjusting gear 3 is rotatably arranged on the arc-shaped outer sleeve member 102 through a bearing.
The other side of the adjusting gear 3 connected with the arc-shaped outer sleeve member 102 extends outwards to form a hexagonal nut 8.
The arc-shaped racks 2 are uniformly arranged on the outer arc end face of the arc-shaped inner sleeve member 101, and the hexagonal nut 8 is rotatably arranged on any one side face of the arc-shaped outer sleeve member 102.
The inner arc end face of the arc-shaped inner sleeve member 101 is in matched limit connection with the arc-shaped outer sleeve member 102 through a guide rail and a sliding block.
Example 2: referring to fig. 4 to 6, the structure is the same as that of embodiment 1 except that:
the outer arc end face of the arc inner sleeve 101 is provided with a strip hole downwards, the left side and the right side of the strip hole are respectively distributed on the arc racks 2, and the adjusting gear 3 is installed between the two arc racks 2 and is rotatably installed on the outer arc end face of the arc outer sleeve 102 through a hexagon nut 8 connected with the adjusting gear.
The utility model discloses a service condition explains (embodiment 1 and embodiment 2 are different in local structure, but theory of operation and operating procedure are all the same):
(1) in the prone position, the diseased vertebra is positioned under the perspective of the C-shaped arm, the limiting kirschner wire 7 is vertically placed in the vertebral body along the inner side edge of the vertebral pedicle as far as possible until the tip end of the limiting kirschner wire 7 is approximately positioned at the rear edge of the vertebral body, then the fixing and limiting are carried out, the side edge is adjacent to the vertebral canal at the inner side edge of the vertebral pedicle when the tip end of the limiting kirschner wire 7 is in the prone position, and the position of the limiting kirschner wire 7 can be determined by matching with the perspective; the limiting kirschner wire 7 is mainly used for limiting and fixing, and is required to be fixed in the vertebral pedicle and attached to the inner side edge of the vertebral pedicle as far as possible, and the depth of the limiting kirschner wire reaches the rear edge of the vertebral body, so that the limiting kirschner wire can be used for stably positioning;
(2) according to the size of different position centrums 9, according to CT before the art to sick vertebra measuring actual size, the radian of the arc locating plate of angle adjustment mechanism 1 is accurately judged, not hard up mark T type nut 401, through the radian of pull arc internal member 101 and arc outer sleeve member 102 preliminary adjustment arc locating plate, 3 rotations of rethread rotatory hexagon nut 8 drive adjusting gear, adjusting gear 3 drives the arc internal member 101 of arc rack 2 rigid coupling rather than the meshing connection and stretches out and draws back the setting, it fixes to rotate mark T type nut 401 at last, thereby the radian of adjustment arc locating plate that can be accurate.
(3) Sleeving the first sleeve 501 on the outer side of the limiting kirschner wire 7, penetrating the puncture needle 6 into the second sleeve 502, and performing puncture on the vertebral body 9 until the center of the vertebral body; because the length of the limiting kirschner wire 7 is fixed, the tip of the limiting kirschner wire 7 is used as a cross point, the limiting kirschner wire 7 and the puncture needle 6 form a cross which takes the radian of the arc-shaped positioning plate as an equiangular angle, the length required by the middle position of the puncture needle 6 extending into the junction of the front middle 1/3 of the vertebral body can be determined according to the perspective of the C-shaped arm, and the position of the tip of the puncture needle 6 can be flexibly and conveniently controlled through the scales displayed on the puncture needle 6. The positioning adjusting and fixing mechanism 4 can be stabilized through the limiting kirschner wire 7, so that the positioning and the puncture of the puncture needle 6 are facilitated, the tip end of the limiting kirschner wire can be used as a limiting protection point, the puncture needle 6 is prevented from being punctured into a vertebral canal during the puncture, the spinal cord is effectively protected, the risk of the operation is reduced, and the success rate is improved;
(4) the bone cement is injected into the vertebral body through the hollow structure communicated with the head end and the tail end of the puncture needle 6, and the length of the puncture needle 6 can be properly adjusted according to the injection condition of the bone cement in the period so as to ensure that the bone cement is uniformly distributed.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. Vertebra shaping location director of chest lumbar vertebrae compression fracture, its characterized in that: comprises
The angle adjusting mechanism (1) is an arc positioning plate with 25-50 degrees formed by an arc inner sleeve piece (101) and an arc outer sleeve piece (102) which are sleeved inside and outside, and the arc inner sleeve piece (101) is connected with the arc outer sleeve piece (102) in a drawing and adjusting mode through an arc rack (2) and an adjusting gear (3) which are meshed with each other;
the adjusting and fixing mechanism (4) comprises a marking T-shaped nut (401) penetrating through the arc-shaped outer sleeve piece (102) and a limiting sliding groove (402) arranged in the middle of the arc-shaped inner sleeve piece (101), and the arc-shaped inner sleeve piece (101) and the arc-shaped outer sleeve piece (102) are matched, screwed and fixedly connected with the limiting sliding groove (402) through the marking T-shaped nut (401);
the positioning mechanism (5) comprises a first sleeve (501) and a second sleeve (502), the first sleeve and the second sleeve are fixedly arranged on the outer side edges of the arc-shaped inner sleeve piece (101) and the arc-shaped outer sleeve piece (102) respectively and used for positioning and limiting the Kirschner wire (7), and the second sleeve are used for positioning the puncture needle (6);
the puncture needle (6) penetrates through the second sleeve (502), the puncture needle (6) is of a hollow structure, the head end and the tail end of the puncture needle are communicated, a needle core is arranged in the hollow part in a drawing mode, and scales are uniformly distributed on the outer surface of the puncture needle (6);
spacing kirschner wire (7), spacing kirschner wire (7) run through first sleeve (501) and its length is less than the length of pjncture needle (6), spacing kirschner wire (7) upper end outside rigid coupling has protruding edge (701) that are used for restricting first sleeve (501) and remove.
2. The vertebroplasty positioning guide for thoracolumbar vertebral compression fractures as claimed in claim 1, wherein: the arc-shaped rack (2) is fixedly arranged on the arc-shaped inner sleeve piece (101), and the adjusting gear (3) is rotatably arranged on the arc-shaped outer sleeve piece (102) through a bearing.
3. The vertebroplasty positioning guide for thoracolumbar vertebral compression fractures as claimed in claim 2, wherein: the other side of the adjusting gear (3) connected with the arc-shaped outer sleeve piece (102) extends outwards to form a hexagonal nut (8).
4. The vertebroplasty positioning guide for thoracolumbar vertebral compression fractures as claimed in claim 3, wherein: the arc-shaped racks (2) are uniformly arranged on the outer arc end face of the arc-shaped inner sleeve (101), and the hexagonal nut (8) is rotatably arranged on any one side face of the arc-shaped outer sleeve (102).
5. The vertebroplasty positioning guide for thoracolumbar vertebral compression fractures as claimed in claim 3, wherein: the outer arc terminal surface of arc endotheca spare (101) is provided with rectangular hole downwards, the equal relative distribution of side about the rectangular hole arc rack (2), adjusting gear (3) are installed between two arc racks (2) and are rotated rather than hexagon nut (8) of being connected and install the outer arc terminal surface at arc outer sleeve spare (102).
6. The vertebroplasty positioning guide of thoracolumbar vertebral compression fracture as claimed in claim 4 or 5, wherein: the inner arc end face of the arc-shaped inner sleeve (101) is in matched limit connection with the arc-shaped outer sleeve (102) through a guide rail and a sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022270098.6U CN213641155U (en) | 2020-10-13 | 2020-10-13 | Vertebral body forming positioning guider for thoracolumbar vertebral compression fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022270098.6U CN213641155U (en) | 2020-10-13 | 2020-10-13 | Vertebral body forming positioning guider for thoracolumbar vertebral compression fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213641155U true CN213641155U (en) | 2021-07-09 |
Family
ID=76700595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022270098.6U Active CN213641155U (en) | 2020-10-13 | 2020-10-13 | Vertebral body forming positioning guider for thoracolumbar vertebral compression fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213641155U (en) |
-
2020
- 2020-10-13 CN CN202022270098.6U patent/CN213641155U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9510873B2 (en) | Guiding apparatus for X-ray-free screw placement by spinal posterior approach | |
| CN201157401Y (en) | Minimally invasive percutaneous transpedicular surgery positioning guide device | |
| CN104138293B (en) | A kind of lumbosacral spine percutaneous cervical arc root screw inserts localizer | |
| CN103393462A (en) | In-vitro dynamic hip screw guider | |
| Yoshida et al. | Percutaneous pedicle screw fixation of a hangman's fracture using intraoperative, full rotation, three-dimensional image (O-arm)-based navigation: a technical case report | |
| CN204600687U (en) | Thoracolumbar disk vertebroplasty Unipedicular approach positioning and guiding sting device | |
| CN104825232A (en) | Trigeminal orientating instrument based on CT (Computed Tomography) guiding | |
| CN107260286A (en) | Minimally invasive pedicle screw guider outside a kind of detachable skin of combination perspective | |
| CN203447351U (en) | External guider for dynamic hip screw | |
| CN213641155U (en) | Vertebral body forming positioning guider for thoracolumbar vertebral compression fracture | |
| CN105769300A (en) | Positioning guider for cervical vertebra puncture and using method thereof | |
| CN204468234U (en) | Operation starts shirtfront pedicle of lumbar vertebral arch skin penetrating point fast-positioning device | |
| CN205126398U (en) | Individuation pedicle of vertebral arch location baffle | |
| CN105963000A (en) | Thoracic lumbar puncture positioning device | |
| CN215129696U (en) | Spinal puncture locator | |
| CN211049548U (en) | Spinal puncture positioning device | |
| US11896243B2 (en) | Surgical tool guide | |
| CN210170156U (en) | Auxiliary guide device for placing hollow screw in anterior cervical path for dentate process fracture | |
| RU107039U1 (en) | DEVICE FOR CARRYING OUT GUIDELINES FOR VERTEBROPLASTIC AND TRANSPEDICULAR OSTEOSYNTHESIS | |
| CN208435736U (en) | A kind of percutaneous cervical arc root punctures guidance system and its fine regulation rod | |
| CN108652731A (en) | A kind of backbone sets nail guide plate and production method | |
| Merloz et al. | Computer-assisted versus manual spine surgery: clinical report | |
| CN204600637U (en) | A kind of Thoracolumbar disk pedicle of vertebral arch operation external member | |
| CN208339578U (en) | A kind of multi-functional Thoracolumbar disk body surface locator device | |
| CN107320158A (en) | Backbone body surface location device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |