CN201227318Y - Lumbar acantha pulling-off device - Google Patents
Lumbar acantha pulling-off device Download PDFInfo
- Publication number
- CN201227318Y CN201227318Y CN 200820042279 CN200820042279U CN201227318Y CN 201227318 Y CN201227318 Y CN 201227318Y CN 200820042279 CN200820042279 CN 200820042279 CN 200820042279 U CN200820042279 U CN 200820042279U CN 201227318 Y CN201227318 Y CN 201227318Y
- Authority
- CN
- China
- Prior art keywords
- lumbar
- opening
- open device
- processus spinosus
- spinous process
- 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.)
- Expired - Lifetime
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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
Abstract
The utility model discloses a lumbar vertebra spinous process distraction device which is at least provided with an upper distraction block and a lower distraction block. The upper distraction block is provided with a first opening end and a concave part, the lower distraction block is provided with a second opening end and a salient, the first opening is contacted with an upper spinous process, the second opening is contacted with a lower spinous process, and the salient extends into the concave to distract the upper spinous process and the lower spinous process. The utility model simple structure, convenient operation and operation time saving; different types and specifications of the lower distraction block satisfy anatomy differences of different patients to achieve the most suitable requirements for spinous process distraction; assembly can be carried out by sliding into the distraction blocks under the state of efficiently distracting the spinous processes in the operative procedure; and a ligament on a spine can be retained.
Description
Technical field
This utility model relates to orthopaedics spinal column implant, particularly a kind of lumbar processus spinosus prop-open device.
Background technology
The present sickness rate of lumbar degenerative disease is higher, is having a strong impact on people's quality of life.Traditional treatment means spinal fusion is the modus operandi commonly used of this disease of treatment, by using pedicle of lumbar vertebral arch screw and being used from body bone, homogeneous allogenic bone and artificial bone, fusion rate is very high, and patient's postoperative lesion segment can reach 90% strong fixing.Yet, thisly be known as therapeutic modality for goldstandard by the clinician, but exist certain limitation.
At first, though very perfect even if the clinician observes the position of sound production of postoperative patient pedicle screw, it is also very thorough to reduce pressure, and merges also very goodly, and the patient still complains the symptom that lumbago is arranged, and screw also has risk loosening, that withdraw from and rupture; In addition, behind lesion segment row fusion, the aggravation that increases relatively, loads of the LOM of this motion stage, two adjacent sections activities, As time goes on, the regression of adjacent segment more easily takes place.
The utility model content
In order to overcome above-mentioned defective, the technical problems to be solved in the utility model is: a kind of lumbar processus spinosus prop-open device is provided.
The technical scheme that this utility model adopted is: a kind of lumbar processus spinosus prop-open device, at least strut on having piece with under strut piece, on strut piece and have first opening and recess, under strut piece and have second opening and projection, first opening contact upper aristate process, the contact of second opening is spinous process down, and projection stretches in the recess, with upper aristate process and following processus spinosus prop-open.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described first opening has lock hole.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described second opening has lock hole.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described projection and recess are dome shape.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described first opening and described second opening are the U type.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device further comprises in the described recess and offers annular groove, is provided with annulus in the annular groove, struts under described between piece and the projection to be connected by cervical region, and annulus is stuck on the cervical region.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described annulus is the C type.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described annulus is an elastic ring.
According to another one embodiment of the present utility model, lumbar processus spinosus prop-open device comprises that further described lumbar processus spinosus prop-open device adopts titanium alloy or polyetheretherketonematerials materials to make.
The beneficial effects of the utility model are: 1) simple in structure, easy to operate, save operating time; 2) strut piece different model specification under, satisfy different patients' anatomic differences, processus spinosus prop-open is reached most suitable requirement; 3) ball-nest joint designs provides mobility to the full extent, and is unrestricted to flexing, rotation, the lateral thrust of spinal column, meets the basic demand of dynamic stability; 4) effectively strutting under the spinous process state in the operative process, can strut piece and assemble, can keep supraspinal ligament by slipping into; 5) the package unit volume is little, and the possibility of Minimally Invasive Surgery is provided for the clinician; 6) existence of elastic ring makes this device that the variation of height can take place with the separation between the spinous process, reach truly dynamically, the probability that also can avoid the native system structure to separate simultaneously.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is the structural representation of this utility model preferred embodiment;
Fig. 2 is Fig. 1 left view;
Fig. 3 is the structural representation of another preferred embodiment of this utility model;
Fig. 4 is the left view of Fig. 3.
Among the figure: 1. strut piece on, 3. strut piece down, 5. first opening, 7. recess, 9. second opening, 11. projectioies, 13. annular grooves, 15. annulus, 17. cervical regions.
The specific embodiment
With preferred embodiment this utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the sketch map of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with this utility model.
A kind of lumbar processus spinosus prop-open device shown in Fig. 1-2, at least strut on having piece 1 with under strut piece 3, on strut piece 1 and have first opening 5 and recess 7, under strut piece 3 and have second opening, 9 ends and projection 11, the first openings 5 contact upper aristate processes, 9 contacts of second opening are spinous process down, projection 11 stretches in the recess 7, with upper aristate process and following processus spinosus prop-open, be about to go up vertebra and strut with following vertebra, unload the load of zygapophysial joints and reduce the interior pressure of intervertebral disc.Wherein, first opening, 5 ends have lock hole, and second opening 9 has lock hole, above-mentioned lock hole be used for for the clinician whether to need to select extra lock screw will on strut piece 1, strut piece 3 down and fix with spinous process.Projection 11 and recess 7 are dome shape, strut the projection 11 support dome shape designs on the piece 3 down, with on strut piece 1 recess 7 dome shape form ball-nest joint, universal mobility is provided, does not hinder the normal physiological activity of spinal column, in the time of can making human lumbar portion movable, this installs also movement therewith, according to bulb height difference, this product has different model, to adapt to the needs of different crowd.On strut piece 1 first opening 5 be the design of U type groove, be complementary with upper aristate process, and second opening 9 that struts piece 3 down also is the design of U type groove, mates with the below spinous process.
Lumbar processus spinosus prop-open device as shown in Figure 3-4 also comprises offering annular groove 13 in the recess 7, is provided with annulus 15 in the annular groove 13, struts down between the piece 3 and protruding 11 to be connected by cervical region 17, and annulus 15 is stuck on the cervical region 17.Because the existence of annulus 15, give and strut piece 1, strut the mobility that piece 3 provides 5 °-15 ° of all directions, the normal physiological activity that does not hinder spinal column down.And on strut the design that piece 1 has been installed annulus 15 in advance, with under strut after piece 3 installs, can make and strut piece 1, strut piece 3 down and vertically producing certain displacement, wherein the ideal range of displacement is between the 1mm-5mm, prevents to strut piece 1, struts piece 3 down over-separation take place.Wherein, annulus 15 is an elastic ring, and is C type structure because the existence of elastic ring makes this device that the variation of height can take place with the separation between the spinous process, reach truly dynamically, the probability that also can avoid the native system structure to separate simultaneously.
This device can adopt titanium alloy material to make, and also can select medical polyether-ether-ketone for use.This material is for titanium alloy, and is more close with the elastic modelling quantity of bone, and intensity is also secure, and X-ray line thoroughly, do not develop, and can at utmost avoid the stress aggravation of this structure to spinous process, reduces the probability of spinous process fracture.
When the patient uses this device, at first, the patient gets lateral position, choose target lumbar vertebra sections, carry out local anaesthesia or general anesthesia, the lumbar vertebra sections otch that is dead on the target cuts skin, subcutaneous tissue etc. one by one and arrives target lumbar vertebra sections supraspinal ligament, peel off the both sides tissue, the lumbar vertebra sections that gives away one's position inserts interspinal ligaments with distraction plate, struts upper aristate process, the gap of spinous process down, put into earlier and strut piece 1, put into down then and strut piece 3, distraction plate is extracted at recess 7 places that the projection 11 that struts piece 3 entered strut piece 1, sew up one by one, operation finishes.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the description, must determine its technical scope according to the claim scope.
Claims (9)
1, a kind of lumbar processus spinosus prop-open device, it is characterized in that: strut on having at least piece (1) with under strut piece (3), on strut piece (1) and have first opening (5) end and recess (7), under strut piece (3) and have second opening (9) end and projection (11), first opening (5) contact upper aristate process, second opening (9) contact is spinous process down, and projection (11) stretches in the recess (7), with upper aristate process and following processus spinosus prop-open.
2, lumbar processus spinosus prop-open device as claimed in claim 1 is characterized in that: described first opening (5) end has lock hole.
3, lumbar processus spinosus prop-open device as claimed in claim 1 is characterized in that: described second opening (9) end has lock hole.
4, lumbar processus spinosus prop-open device as claimed in claim 1 is characterized in that: described projection (11) and recess (7) are dome shape.
5, lumbar processus spinosus prop-open device as claimed in claim 1 is characterized in that: described first opening (5) is the U type with described second opening (9).
6, lumbar processus spinosus prop-open device as claimed in claim 1, it is characterized in that: offer annular groove (13) in the described recess (7), be provided with annulus (15) in the annular groove (13), strut piece (3) under described and be connected by cervical region (17) between (11) with projection, annulus (15) is stuck on the cervical region (17).
7, lumbar processus spinosus prop-open device as claimed in claim 6 is characterized in that: described annulus (15) is the C type.
8, lumbar processus spinosus prop-open device as claimed in claim 6 is characterized in that: described annulus (15) is an elastic ring.
9, lumbar processus spinosus prop-open device as claimed in claim 1 is characterized in that: described lumbar processus spinosus prop-open device adopts titanium alloy or polyetheretherketonematerials materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820042279 CN201227318Y (en) | 2008-07-29 | 2008-07-29 | Lumbar acantha pulling-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820042279 CN201227318Y (en) | 2008-07-29 | 2008-07-29 | Lumbar acantha pulling-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201227318Y true CN201227318Y (en) | 2009-04-29 |
Family
ID=40632278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820042279 Expired - Lifetime CN201227318Y (en) | 2008-07-29 | 2008-07-29 | Lumbar acantha pulling-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201227318Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101612056B (en) * | 2008-06-27 | 2012-05-02 | 常州奥斯迈医疗器械有限公司 | Lumbar processus spinosus prop-open device |
| CN102512232A (en) * | 2012-01-10 | 2012-06-27 | 李照文 | Interspinal universal dynamic stabilizer |
| CN106037906A (en) * | 2016-07-04 | 2016-10-26 | 首都医科大学 | Rotatable lumbar elastic fixing device |
-
2008
- 2008-07-29 CN CN 200820042279 patent/CN201227318Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101612056B (en) * | 2008-06-27 | 2012-05-02 | 常州奥斯迈医疗器械有限公司 | Lumbar processus spinosus prop-open device |
| CN102512232A (en) * | 2012-01-10 | 2012-06-27 | 李照文 | Interspinal universal dynamic stabilizer |
| CN106037906A (en) * | 2016-07-04 | 2016-10-26 | 首都医科大学 | Rotatable lumbar elastic fixing device |
| CN106037906B (en) * | 2016-07-04 | 2018-08-07 | 首都医科大学 | A kind of rotatable lumbar vertebrae elastic fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090429 Effective date of abandoning: 20080729 |