CN209437361U - A kind of vertebra former of controllable bending - Google Patents
A kind of vertebra former of controllable bending Download PDFInfo
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- CN209437361U CN209437361U CN201820301827.XU CN201820301827U CN209437361U CN 209437361 U CN209437361 U CN 209437361U CN 201820301827 U CN201820301827 U CN 201820301827U CN 209437361 U CN209437361 U CN 209437361U
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- inner tube
- notch
- tube
- outer tube
- fixing head
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Abstract
The utility model discloses a kind of vertebra formers of controllable bending, it include: outer tube, its distal end is connected with fixing head, inner tube, it is set in the outer tube, and the tube wall of said inner tube distal end on be provided with notch, the notch is distributed in the default circumferential angular interval of said inner tube, delivery pipe, to convey bone cement inside said inner tube, and, operating mechanism, it is connected with said inner tube, said inner tube can be driven to do axial feed motion, wherein, the transfer passage to form the bone cement is connected with the delivery pipe for said inner tube and/or the outer tube and/or the fixing head.All notch in inner tube circumferentially extend, parallel to each other；The distal end of said inner tube and the fixing head are affixed.By the way that notch, the fixed fixing head of distal outer tube are arranged on inner pipe, and then inner tube is controlled by operating mechanism and is abutted against to fixing head, realizes that inner tube is bent towards preset direction.It is easy to operate and easily controllable.
Description
Technical field
The utility model relates to the field of medical instrument technology, a kind of especially vertebra former of controllable bending.
Background technique
Osteoporosis centrum compression fracture (" OVCF ") is a kind of common spinal injury and will lead to long term disability, one
As for, OVCF is related in backbone collapsing for one or more centrums.OVCF usually occurs in the lower part centrum of thoracic vertebrae or lumbar vertebrae
Top centrum.OVCF generally involves the fracture that the front part of impacted centrum generates.OVCF can lead to backbone by shadow
The normal sequence and curvature of the centrum in region, such as lordosis are rung, is deformed.OVCF and/or related deformity of spine are for example
It is as caused by metastatic disease, wound of backbone etc. or related to osteoporosis.
The technical problem clinically encountered at present is how to realize that the stably and controllable bending of vertebra former is dynamic
Make, to guarantee that bone cement is input to the designated position of centrum.
Summary of the invention
The purpose of the utility model is to provide a kind of vertebra former of controllable bending, realize that vertebra former stabilization can
The flexure operation of control guarantees that bone cement is input to the designated position of centrum.
A kind of the technical scheme that the utility model is provided is as follows: vertebra former of controllable bending, comprising:
Outer tube, distal end are connected with fixing head,
Inner tube is set in the outer tube, and notch is provided on the tube wall of said inner tube distal end, and the notch is distributed in
In the default circumferential angular interval of said inner tube,
Delivery pipe, to convey bone cement inside said inner tube, and,
Operating mechanism is connected with said inner tube, it can be driven to do axial feed motion, wherein
Said inner tube and/or the outer tube and/or the fixing head are connected to form the bone cement with the delivery pipe
Transfer passage.
Preferably, all notch in inner tube circumferentially extend, parallel to each other.
Preferably, the distal end of said inner tube and the fixing head are affixed.
Preferably, said inner tube and the outer tube are metallic material pipe.
Preferably, notch is provided on the tube wall of the distal outer tube, the notch is distributed in the default ring of the outer tube
Notch interlaced arrangement into angular interval, and on the notch and said inner tube on the outer tube.
Preferably, notch covers angle between 150 ° -300 ° in the predetermined angle section in said inner tube.
Specifically, the angle that covers in predetermined angle section of the notch in said inner tube is 270 °.
Preferably,
The angle that covers in predetermined angle section of the notch in said inner tube is 150 ° -300 °；
The angle that covers in predetermined angle section of the notch on the outer tube is 150 ° -300 °.
Specifically,
The angle that covers in predetermined angle section of the notch in said inner tube is 270 °；
The angle that covers in predetermined angle section of the notch on the outer tube is 270 °.
Preferably, the fixing head is the ferrule of taper.
Specifically, vertebra former further comprises Y-valve, handle, adjusting screw rod and fixing pipe.
Wherein, the outer tube is stretched out outside the proximal end of said inner tube, and is arranged in the Y-valve, the Y type valve is fixed
In the fixing pipe；Internal screw thread is provided on the handle, one end of the adjusting screw rod and the proximal end of inner tube are connected, another
End is connect with the handle spiral, and the fixing pipe is provided with the through-hole that passes through of the confession adjusting screw rod, the through-hole with it is described
The section of adjusting screw rod is adapted, and the outer profile in section includes rectilinear strip.
Specifically, the rectilinear strip part of adjusting screw rod section outer profile is screw thread discontinuities.
A kind of vertebra former of controllable bending provided by the utility model can be brought following at least one beneficial to effect
Fruit:
1, by the way that notch, the fixed fixing head of distal outer tube are arranged on inner pipe, and then interior tube top is controlled by operating mechanism
By in fixing head, realizing that inner tube is bent towards preset direction.It is easy to operate and easily controllable.
2, adjusting screw rod and inner tube are connected directly, and fixing pipe and adjusting screw rod cooperation limit its rotation, reach limitation inner tube
The purpose of rotation, avoids inner tube from damaging, and prolongs its service life.
3, notch is also provided on outer tube in order to which inner tube drives its bending, while the notch on the notch and inner tube on outer tube
Interlaced arrangement is picked and placed with facilitating.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, the vertebral plasty of controllable bending is filled
Above-mentioned characteristic, technical characteristic, advantage and its implementation set are further described.
Fig. 1 is the overall structure figure of the vertebra former of controllable bending.
Fig. 2 is the explosive view of fixing head, inner tube and outer tube.
Fig. 3 is the internal structure chart of adjusting screw rod, handle and fixing pipe cooperation.
Fig. 4 is the three-dimensional structure diagram of adjusting screw rod.
Drawing reference numeral explanation: 100, outer tube, 110, notch, 200, fixing head, 300, inner tube, 310, notch, 400, Y type
Valve, 500, handle, 510, adjusting screw rod, 520, fixing pipe.
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings, and obtains other embodiments.
To make simplified form, part relevant to the utility model is only schematically shown in each figure, they are simultaneously
Its practical structures as product is not represented.
Embodiment one
As depicted in figs. 1 and 2, the present embodiment discloses a kind of vertebra former of controllable bending comprising, it is outer tube 100, interior
Pipe 300, delivery pipe and operating mechanism.Wherein, the distal end of outer tube 100 is connected with fixing head 200, the suit of inner tube 300 and outer tube
In 100.Fig. 2 is the explosive view of fixing head 200, inner tube 300 and outer tube 100, is provided with and cuts on the tube wall of 300 distal end of inner tube
Mouthful, notch is distributed in the default circumferential angular interval of inner tube 300.
Operating mechanism is connected with inner tube 300, it can be driven to do the movement of axial feed, when inner tube 300 is abutted against to fixing head
After 200, inner tube 300 is continued to press on, is limited since fixing head 200 is connected with outer tube 100, inner tube 300 is abutted against with bigger power
When structure on to fixing head 200, so that it may so that the bending that inner tube 300 is forced to, distribution of the curved direction towards notch
Position.Then the bending of inner tube 300 will drive the bending of outer tube 100.It meanwhile further including having conveying bone cement in inner tube 300
Delivery pipe (is not drawn into) in figure, and the bone cement that proximal end exports is conducted to vertebra former front end.Illustratively, inner tube 300
Distal end can be affixed with fixing head 200.All notch in inner tube 300 circumferentially extend, parallel to each other, improve inner tube bending
Compliance.
To sum up, this vertebra former can realize the function of conveying bone cement, while inner tube, outer tube and fixing head are matched
Closing structure may be implemented controllable flexure operation.
It is further preferred that being provided with notch on the tube wall of 100 distal end of outer tube, notch is distributed in the default ring of outer tube 100
Into angular interval, and the notch on outer tube 100 and the notch interlaced arrangement in inner tube 300.Its object is to work as inner tube 300
It does not include notch in the structure of corresponding outer tube 100 when orientation is bent where towards notch, it can be in order to vertebra former
It picks and places.Namely when the vertebra former cooperates other products in use, its apparent crooked position is not include notch
Smooth surface layer, when taking-up, which will not block other products of cooperation, facilitate taking-up, and be not easy because when firmly extracting out
It blocks and forces notch break in human body.
Illustratively, the angle that covers in predetermined angle section of the notch in said inner tube is 150 ° -300 °；Notch is in institute
The angle that covers for stating the predetermined angle section on outer tube is 150 ° -300 °.Namely notch manages circumferentially extending angle inside and exists
Between 150 ° and 300 °.It is further preferred that the angle that covers in predetermined angle section of the notch in said inner tube is 270 °；It cuts
The angle that covers in predetermined angle section of the mouth on the outer tube is 270 °.And inner tube and outer tube are metallic material pipe.
Embodiment two
On the basis of example 1, as shown in Fig. 2, fixing head 200 is the ferrule of taper, so that the vertebral plasty fills
It sets and can be realized simultaneously puncture function.Fixing head is also designed to the shapes such as hemisphere, cube, cylindrical body, these structure shapes
Formula also can be achieved at the centrum position of osteoporosis and puncture function.Ferrule can be more preferably steel toe.
Illustratively, shown in as shown in Figure 1, Figure 3 and Figure 4, vertebra former further comprises Y-valve 400, handle 500, adjusts
Save screw rod 510 and fixing pipe 520.
Wherein, the overhanging outer tube 100 out in the proximal end of inner tube 300, and it is arranged in Y-valve 400, Y-valve 400 is fixed on
Determine on pipe 520, the outer pipeline for stretching out the vertebra former is the injection phase of bone cement on Y-valve, correspondingly, inner tube 300
On be to cooperate the position (i.e. nguktrum interface) of the pipeline to have injection hole, bone cement is passed into inner tube.Handle
Internal screw thread is provided on 500, one end of adjusting screw rod 510 and the proximal end of inner tube 300 are connected, and the other end and 500 spiral of handle connect
It connects, fixing pipe 520 is provided with the through-hole passed through for adjusting screw rod 510, and through-hole is adapted with the section of adjusting screw rod 510, and logical
The outer profile in hole and adjusting screw rod section includes rectilinear strip.
Since the through-hole of fixing pipe 520 and the outer profile in adjusting screw rod section include rectilinear strip, and through-hole and adjust
Screw rod 510 is adapted, so that 510 holding of adjusting screw rod will not rotate in through-holes.Handle 500 and adjusting screw rod spiral
Connection, then will drive when rotating handle 500 adjusting screw rod 510 do straight-line feed movement (spinning movement is limited), inner tube 300 with
Straight-line feed movement is equally done in the connection of adjusting screw rod 510.By the through-hole of aforementioned fixing pipe 520 to the anti-rotation of adjusting screw rod, keep away
Exempt from inner tube 300 to be broken because rotating.
Illustratively, the rectilinear strip part of 510 section outer profile of adjusting screw rod is screw thread discontinuities, structure such as Fig. 4 institute
Show.In addition, adjusting screw rod and fixing pipe can also take segmental structure in the axial direction, one section be matching for circular cross-section
It closes, another section of cooperation for square-section can achieve the effect similar with structure in Fig. 4, at this point, the foreign steamer of square-section
It include rectilinear strip on exterior feature.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the utility model
Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle
Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (9)
1. a kind of vertebra former of controllable bending characterized by comprising
Outer tube, distal end are connected with fixing head, and notch is provided on the tube wall of the distal outer tube, and the notch is distributed in described
In the default circumferential angular interval of outer tube,
Inner tube is set in the outer tube, and the tube wall of said inner tube distal end on be provided with notch, the notch is distributed in institute
It states in the default circumferential angular interval of inner tube, and the notch interlaced arrangement on the notch and said inner tube on the outer tube,
Delivery pipe, to convey bone cement inside said inner tube, and,
Operating mechanism is connected with said inner tube, said inner tube can be driven to do axial feed motion, wherein
The conveying to form the bone cement is connected with the delivery pipe for said inner tube and/or the outer tube and/or the fixing head
Channel.
2. the vertebra former of controllable bending according to claim 1, it is characterised in that:
All notch in inner tube circumferentially extend, parallel to each other；
And/or；
The distal end of said inner tube and the fixing head are affixed；
And/or；
Said inner tube and the outer tube are metallic material pipe.
3. the vertebra former of controllable bending according to claim 1, it is characterised in that: notch is pre- in said inner tube
If angular interval covers angle between 150 ° -300 °.
4. the vertebra former of controllable bending according to claim 3, it is characterised in that: notch is pre- in said inner tube
If the angle that covers of angular interval is 270 °.
5. the vertebra former of controllable bending according to claim 4, it is characterised in that:
The angle that covers in predetermined angle section of the notch in said inner tube is 150 ° -300 °；
The angle that covers in predetermined angle section of the notch on the outer tube is 150 ° -300 °.
6. the vertebra former of controllable bending according to claim 5, it is characterised in that:
The angle that covers in predetermined angle section of the notch in said inner tube is 270 °；
The angle that covers in predetermined angle section of the notch on the outer tube is 270 °.
7. the vertebra former of -6 any controllable bendings according to claim 1, it is characterised in that: the fixing head is cone
The ferrule of shape.
8. the vertebra former of controllable bending according to claim 7, it is characterised in that: further comprise Y-valve, hand
Handle, adjusting screw rod and fixing pipe, wherein
The outer tube is stretched out outside the proximal end of said inner tube, and is arranged in the Y-valve, and the Y-valve is fixed on the fixation
Guan Shang；Internal screw thread is provided on the handle, one end of the adjusting screw rod and the proximal end of inner tube are connected, the other end and the hand
The connection of handle spiral, the fixing pipe are provided with the through-hole passed through for the adjusting screw rod, the through-hole and the adjusting screw rod
Section is adapted, and the outer profile in section includes rectilinear strip.
9. the vertebra former of controllable bending according to claim 8, it is characterised in that: adjusting screw rod section foreign steamer
Wide rectilinear strip part is screw thread discontinuities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820301827.XU CN209437361U (en) | 2018-03-05 | 2018-03-05 | A kind of vertebra former of controllable bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820301827.XU CN209437361U (en) | 2018-03-05 | 2018-03-05 | A kind of vertebra former of controllable bending |
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| Publication Number | Publication Date |
|---|---|
| CN209437361U true CN209437361U (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820301827.XU Active CN209437361U (en) | 2018-03-05 | 2018-03-05 | A kind of vertebra former of controllable bending |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210059A (en) * | 2018-03-05 | 2018-06-29 | 上海朗迈医疗器械科技有限公司 | A kind of vertebra former of controllable bending |
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2018
- 2018-03-05 CN CN201820301827.XU patent/CN209437361U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210059A (en) * | 2018-03-05 | 2018-06-29 | 上海朗迈医疗器械科技有限公司 | A kind of vertebra former of controllable bending |
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