CN203059916U - Vertebral pedicle positioner for spinal posterior minimally invasive nailing - Google Patents
Vertebral pedicle positioner for spinal posterior minimally invasive nailing Download PDFInfo
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- CN203059916U CN203059916U CN2013200514311U CN201320051431U CN203059916U CN 203059916 U CN203059916 U CN 203059916U CN 2013200514311 U CN2013200514311 U CN 2013200514311U CN 201320051431 U CN201320051431 U CN 201320051431U CN 203059916 U CN203059916 U CN 203059916U
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- vertebral
- pedicle
- metal ring
- positioner
- localizer
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Abstract
The utility model discloses a vertebral pedicle positioner for spinal posterior minimally invasive nailing. The vertebral pedicle positioner comprises a pair of same metal ring bodies which cannot alow fluoroscopy rays to penetrate through, wherein the metal ring bodies are fixedly connected by a connecting part and are positioned in the same plane. When the vertebral pedicle positioner is transversely arranged at the back of a patient for carrying out fluoroscopy, projections of vertebral pedicles on two sides are simultaneously positioned in the metal ring bodies by fine tuning of the positioner. The vertebral pedicle positioner disclosed by the utility model has the advantages that firstly, the positions of the vertebral pedicles can be positioned on the body surface easily and accurately and small surgical incisions can be accurately selected, and thus the surgical operation parts can be reached by directly viewing the separation of the clearance between multifidus muscle and longissimus muscle under the condition that the length of the surgical incision formed by a technology like a traditional minimally invasive spine surgery technique; secondly, the condition that the muscle is injured by surgical approach due to the fact that transdermal directly punctures is avoided and vertebral pedicle nailing positions and vertebral plates can be easily reached for carrying out nailing and pressure reducing operations; and thirdly, the vertebral pedicle positioner is simple and convenient in operation, quickness and time economization and avoids exposure of excessive rays.
Description
Technical field
This utility model relates to the pedicle of vertebral arch localizer that nail is put by a kind of spinal column way of escape Wicresoft, belongs to medical instruments field.
Background technology
The development since coming out the eighties in last century of pedicle screw technology has been widely used in the operative treatment of illness such as spinal column degeneration, centrum olisthe, spinal canal stenosis, vertebral fracture, deformity, metastatic tumor of bone and spinal column unstability rapidly.At present, pedicle screw is one of internal fixation device that is most widely used in the spinal surgery.The pedicle screw method for implantation mainly contains: 1, put the nail art through way of escape medisection, it is the traditional operation mode, and clinical practice at present is extensive, for most of clinicists accept extensively; Its major defect is that operation wound is bigger, pedicle of vertebral arch entry point difficult exposure, and hemorrhage more, postoperative patient is longer recovery time, merges the atrophy of musculus longissimus and multifidi more, often merges ligament destruction and causes instability, and part patient at a specified future date leaves lumbago.2, vertebral column minimally invasive technology, namely the nail technology is put by paths auxiliary Wicresoft down in back, it carries out the operation that the spinal column pedicle screw is inserted by particular surgical instrument such as the expansion of medical image, accessory channel and micro-endoscope and instrument, damage with minimum reaches best therapeutic effect, short than the traditional method operative incision, wound is little, go out insufficiency of blood, postoperative function recovers fast, reduces the incidence rate of postoperative low-back pain.But novel from its practicality at present, clinical practice soon 30 years so far, because the expensive and learning curve of its supporting apparatus is mild relatively, it is not widely used and promotes, particularly the domestic tertiary hospitals spinal surgery that only limits to is at present carried out.
A kind of the same operative incision with less invasive techniques of present clinical needs is short, wound is little, go out insufficiency of blood, the postoperative function recovery is fast but low price is effectively simple, easily the new less invasive techniques of grasp.Utility model people improves traditional spinal column way of escape less invasive techniques, and it is simple and convenient to have redesigned a cover, easier grasp, and the modus operandi that the more traditional Wicresoft of wound is littler and operating theater instruments, and the pedicle of vertebral arch localizer is exactly wherein important one.
The location that the preceding pedicle of vertebral arch of nail technology is put by conventional spinal way of escape Wicresoft is more complicated and time-consuming, it is general to adopt before art passage expansion approach after the pedicle of vertebral arch of Kirschner wire puncture location, particularly needs repeatedly actinoscopy X to make patient and extra being exposed in the more ray of medical personnel; Approach of its puncture back expansion may depart from the gap of multifidi and musculus longissimus and cause the damage of multifidi and musculus longissimus meat.Present clinical needs are a kind of effectively simple, easily pedicle of vertebral arch art prelocalization technology and the littler operative approach of grasping of wound.
The utility model content
The utility model purpose: the purpose of this utility model is at the deficiencies in the prior art, provides a kind of and can assist the positioner that carries out the pedicle of vertebral arch body surface projection accurately, fast and easily, and the selection of little otch provides accurate in locating when putting nail for the way of escape.
Technical scheme: the pedicle of vertebral arch localizer of nail is put by a kind of spinal column way of escape described in the utility model Wicresoft, comprise the metal ring body that a pair of identical perspective ray can't penetrate, fixedly connected by connecting portion between the described metal ring body, described becket body is positioned at same plane, this localizer is laterally placed when having an X-rayed behind the patient back, and the fine setting by localizer is positioned at the projection of bilateral pedicle of vertebral arch in the metal ring body simultaneously.As percutaneous puncture pedicle of vertebral arch location, need need not accurately location, because the image according to perspective, the patient has understood the relative position of pedicle of vertebral arch and quoit, so when selecting little otch, only needing to adjust roughly incision site just can accurately locate, need not simultaneously to have an X-rayed repeatedly and disposable pedicle of vertebral arch is positioned at the central authorities of ring, the location is fast simple, and can obviously reduce the number of times of X line exposing.
Further improve technique scheme, the internal diameter of described metal ring body is 26mm, and external diameter is 34mm, and thickness is 4mm; The length of described connecting portion is 4mm, and wide is 6mm, and thickness is 4mm.Distance between metal ring body two centers of circle is based upon on a large amount of interpediculate distance based measurement, the distance in two centers of circle is than the big 8mm of the somatometric average distance of pedicle of vertebral arch simultaneously, the vertical incision in the ring body center of circle of location pedicle of vertebral arch tailing edge metal can make operative incision in the outside of pedicle of vertebral arch like this, putting nail for pedicle of vertebral arch needs 10 ° to 15 ° camber angle that the space is provided, and makes operation technique convenient.
Further, the upper surface of described connecting portion is provided with half-circle projection, and the perpendicular direction of the circle center line connecting of described projection upper edge and two metal ring bodies has through hole.
The diameter of described half-circle projection is 6mm, and the diameter of described through hole is 4mm.
Utilize flexible Metallic rod to pass through hole a plurality of localizers are coupled together, realize the location of a plurality of sections, for the patient of scoliosis, have an X-rayed again after can making it and spinous process overlaps according to the moulding Metallic rod of the form of spinous process.
Described Metallic rod is shaping aluminum alloy bar, and diameter is 4mm,, according to the length difference three kinds of specification: 100mm, 200mm and 300mm are arranged.
This utility model compared with prior art, its beneficial effect is: (1) can be accurately easily in vertebral arch location of root, body surface location, accurately select the little otch of operation, simultaneously can be under the situation of employing and the same operative incision length of existing vertebral column minimally invasive technology, the gap of separating multifidi and musculus longissimus by direct-view arrives operative site; (2) avoided percutaneous directly puncture cause operative approach in the situation of muscle with interior muscle injury, can arrive pedicle of vertebral arch easily and put the operation that undergos surgery of nail position and vertebral plate; (3) simple to operationly fast save time, and avoid too much ray to expose.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, metal ring body; 2, connecting portion; 3, half-circle projection; 4, through hole.
The specific embodiment
Below technical solutions of the utility model are elaborated, but protection domain of the present utility model is not limited to described embodiment.
Embodiment 1: as shown in Figure 1, the pedicle of vertebral arch localizer of nail is put by a kind of spinal column way of escape Wicresoft, comprise the metal ring body 1 that a pair of identical perspective ray can't penetrate, fixedly connected by connecting portion 2 between the described metal ring body 1, described metal ring body 1 is positioned at same plane, the internal diameter of described metal ring body 1 is 26mm, and external diameter is 34mm, and thickness is 4mm; The length of described connecting portion 2 is 4mm, and wide is 6mm, and thickness is 4mm.The upper surface of described connecting portion 2 is provided with half-circle projection 3, the perpendicular direction of the circle center line connecting of described projection 3 upper edges and two metal ring bodies 1 has through hole 4, the diameter of described half-circle projection 3 is 6mm, the diameter of described through hole 4 is 4mm, this localizer is laterally placed when carrying out the anteroposterior position perspective behind the patient back, and the fine setting by localizer is positioned at the projection of bilateral pedicle of vertebral arch in the metal ring body simultaneously.
Simultaneously, utilizing flexible Metallic rod to pass through hole couples together a plurality of localizers, realize the location of a plurality of sections, patient for scoliosis, have an X-rayed after can making it and spinous process overlaps according to the moulding Metallic rod of the form of spinous process, described Metallic rod is shaping aluminum alloy bar again, and diameter is 4mm,, according to the length difference three kinds of specification: 100mm, 200mm and 300mm are arranged.
As mentioned above, although represented and explained this utility model that with reference to specific preferred embodiment it shall not be construed as the restriction to this utility model self.Under the spirit and scope prerequisite of the present utility model that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (4)
1. the pedicle of vertebral arch localizer of nail is put by a spinal column way of escape Wicresoft, it is characterized in that, comprise the metal ring body that a pair of identical perspective ray can't penetrate, fixedly connected by connecting portion between the described metal ring body, described becket body is positioned at same plane, this localizer is laterally placed when having an X-rayed behind the patient back, and the fine setting by localizer is positioned at the projection of bilateral pedicle of vertebral arch in the metal ring body simultaneously.
2. the pedicle of vertebral arch localizer of nail is put by a kind of spinal column way of escape according to claim 1 Wicresoft, it is characterized in that the internal diameter of described metal ring body is 26mm, and external diameter is 34mm, and thickness is 4mm; The length of described connecting portion is 4mm, and wide is 6mm, and thickness is 4mm.
3. the pedicle of vertebral arch localizer of nail is put by a kind of spinal column way of escape according to claim 1 Wicresoft, it is characterized in that the upper surface of described connecting portion is provided with half-circle projection, and the perpendicular direction of the circle center line connecting of described projection upper edge and two metal ring bodies has through hole.
4. the pedicle of vertebral arch localizer of nail is put by a kind of spinal column way of escape according to claim 3 Wicresoft, it is characterized in that the diameter of described half-circle projection is 6mm, and the diameter of described through hole is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200514311U CN203059916U (en) | 2013-01-30 | 2013-01-30 | Vertebral pedicle positioner for spinal posterior minimally invasive nailing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200514311U CN203059916U (en) | 2013-01-30 | 2013-01-30 | Vertebral pedicle positioner for spinal posterior minimally invasive nailing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203059916U true CN203059916U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200514311U Expired - Fee Related CN203059916U (en) | 2013-01-30 | 2013-01-30 | Vertebral pedicle positioner for spinal posterior minimally invasive nailing |
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| CN (1) | CN203059916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103169535A (en) * | 2013-01-30 | 2013-06-26 | 南京医科大学第一附属医院 | Vertebral pedicle positioner for spinal column posterior approach minimally-invasive screw fixation |
-
2013
- 2013-01-30 CN CN2013200514311U patent/CN203059916U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103169535A (en) * | 2013-01-30 | 2013-06-26 | 南京医科大学第一附属医院 | Vertebral pedicle positioner for spinal column posterior approach minimally-invasive screw fixation |
| WO2014117560A1 (en) * | 2013-01-30 | 2014-08-07 | 南京医科大学第一附属医院 | Vertebral arch pedicle positioner for spinal posterior minimally invasive screw fixation |
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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: 20130717 Termination date: 20180130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |