CN207152634U - The minimally invasive tunnel dilator of reflexed umbrella-type - Google Patents
The minimally invasive tunnel dilator of reflexed umbrella-type Download PDFInfo
- Publication number
- CN207152634U CN207152634U CN201720224069.1U CN201720224069U CN207152634U CN 207152634 U CN207152634 U CN 207152634U CN 201720224069 U CN201720224069 U CN 201720224069U CN 207152634 U CN207152634 U CN 207152634U
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- China
- Prior art keywords
- minimally invasive
- pilot sleeve
- bar
- utility
- elastic cage
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Abstract
The utility model belongs to technical field of medical instruments.A kind of minimally invasive tunnel dilator of reflexed umbrella-type, including pilot sleeve, it is laid in the guide grooves of pilot sleeve outer wall Shang tetra- and the elastic cage bar bar being arranged in guide groove, pilot sleeve outer end slip cap is provided with three groups of slip support sets, and three groups of slip support sets are separately positioned on the both ends and middle part of elastic cage bar bar.The utility model is reasonable in design, compact, and it is by using reflexed umbrella structure, realize from internal extended, so as to prevent the vital tissues such as the blood vessel of surrounding and nerve from sustaining damage, efficiency and effect that operation is implemented are substantially increased, avoids the generation of postoperative complication.The utility model employs brand-new minimally invasive passage expansion theory, so that the quality entirely performed the operation has obtained effective raising in surgical procedure is implemented.
Description
Technical field
The utility model belongs to technical field of medical instruments, and in particular to a kind of minimally invasive tunnel dilator of reflexed umbrella-type.
Background technology
Orthopaedics Minimally Invasive Surgery becomes increasingly popular, and Minimally Invasive Surgery has the characteristics of recovering fast, few intercurrent disease, alleviates patient's pain
Hardship, and the trend of orthopaedics development later.
Current minimally invasive passage is by the way that similar to " Russian Dolls ", one piece of Kirschner wire is inserted into institute under fluoroscopy first
Position is needed, then expands the different cannulated sleeve of diameter step by step, until reaching required size.But due to sleeve tube wall
The thickness of itself, therefore there are still the vital tissues such as the blood vessel beside damage reason location Kirschner wire, nerve.
The content of the invention
For above-mentioned problem and shortage, the utility model offer is a kind of reasonable in design, can realize steady
Shore, so as to create minimally invasive passage, be easy to carry out the minimally invasive tunnel dilator of reflexed umbrella-type of operative treatment.
To solve the above problems, adopted the technical scheme that：
A kind of minimally invasive tunnel dilator of reflexed umbrella-type, including pilot sleeve, be laid in pilot sleeve outer wall Shang tetra- and lead
To groove and the elastic cage bar bar that is arranged in guide groove, pilot sleeve outer end slip cap is provided with three groups of slip support sets, and three
Group slides the both ends and middle part that support set is separately positioned on elastic cage bar bar, and the slip support set includes two outer tubes corresponding to left and right
With two inner sleeves of correspondence, the both ends matching of inner sleeve is set in outer tube, and two outer tubes and two inner sleeves difference
Connected with corresponding elastic cage bar bar, the both ends inwall of the outer tube is set in mouth is restrained on the outer wall at the inner sleeve both ends
It is equipped with and tightens up projection, thread segment is provided with the outer end of pilot sleeve, pushing tow swivel nut is provided with thread segment, pushing tow swivel nut
Upper end section is in taper type.
The groove depth of the upper end of the guide groove is gradually reduced, and driving is slided support set and outwards strutted.
The elastic cage bar bar is fixedly connected or is pivotally connected with sliding support set.
Lock groove is provided with the both ends inwall of the outer tube.
The inner sleeve can be taken out, and outer tube is retained in otch, be used as passage.
Using above-mentioned technical proposal, acquired beneficial effect is：
The utility model is reasonable in design, compact, and it is realized from internal extended by using reflexed umbrella structure, so as to
Prevent the vital tissues such as blood vessel and the nerve of surrounding from sustaining damage, substantially increase efficiency and effect that operation is implemented, avoid
The generation of postoperative complication.The utility model employs brand-new minimally invasive passage expansion theory in surgical procedure is implemented, so as to
So that the quality entirely performed the operation has obtained effective raising.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is expanding structure schematic diagram of the present utility model.
Fig. 3 is Fig. 2 overlooking the structure diagram.
Fig. 4 is the attachment structure schematic diagram of outer tube and inner sleeve.
Sequence number in figure：1 it is pilot sleeve, 2 be guide groove, 3 be main rib, 4 be outer tube, 5 is inner sleeve, 6 to tighten up
It is raised, 7 be pushing tow swivel nut, 8 be lock groove.
Embodiment
The utility model is further described with reference to specific embodiment and accompanying drawing, but the utility model is not limited to
These embodiments.
Referring to Fig. 1-Fig. 4, a kind of minimally invasive tunnel dilator of reflexed umbrella-type, including pilot sleeve 1, it is laid in pilot sleeve 1
The guide grooves 2 of outer wall Shang tetra- and the elastic cage bar bar 3 being arranged in guide groove 2, the outer end of pilot sleeve 1 are slided and are arranged
There are three groups of slip support sets, three groups of slip support sets are separately positioned on the both ends and middle part of elastic cage bar bar 3, and the slip support set includes
Two inner sleeves 5 of two outer tubes 4 corresponding to left and right and correspondence, the both ends matching of inner sleeve 5 are set in outer tube 4, and
Two outer tubes 4 and two inner sleeves 5 connect with corresponding elastic cage bar bar 3 respectively, and the both ends inwall of the outer tube 4 is in convergence
Mouthful, it is provided with the outer wall at the both ends of inner sleeve 5 and tightens up projection 6, the outer end of pilot sleeve 1 is provided with thread segment, spiral shell
Pushing tow swivel nut 7 is provided with line section, the upper end section of pushing tow swivel nut is in taper type.
The groove depth of the upper end of the guide groove is gradually reduced, and driving is slided support set and outwards strutted.
The elastic cage bar bar is fixedly connected or is pivotally connected with sliding support set.
Lock groove 8 is provided with the both ends inwall of the outer tube.
The utility model is reasonable in design, compact, and it is realized from internal extended by using reflexed umbrella structure, so as to
Prevent the vital tissues such as blood vessel and the nerve of surrounding from sustaining damage, substantially increase efficiency and effect that operation is implemented, avoid
The generation of postoperative complication.The utility model employs brand-new minimally invasive passage expansion theory in surgical procedure is implemented, so as to
So that the quality entirely performed the operation has obtained effective raising.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art can also make a variety of changes accordingly
Change, but any change equivalent or similar with the utility model should all be covered in the range of the utility model claims.
Claims (4)
- A kind of 1. minimally invasive tunnel dilator of reflexed umbrella-type, it is characterised in that：Including pilot sleeve, it is laid on pilot sleeve outer wall Four guide grooves and the elastic cage bar bar that is arranged in guide groove, pilot sleeve outer end slip cap be provided with three groups of slips Support set, three groups of slip support sets are separately positioned on the both ends and middle part of elastic cage bar bar, and the slip support set is included corresponding to left and right Two inner sleeves of two outer tubes and correspondence, the both ends matching of inner sleeve are set in outer tube, and in two outer tubes and two Sleeve pipe connects with corresponding elastic cage bar bar respectively, and the both ends inwall of the outer tube is in convergence mouth, the inner sleeve both ends It is provided with outer wall and tightens up projection, thread segment is provided with the outer end of pilot sleeve, pushing tow swivel nut is provided with thread segment, is pushed up The upper end section for pushing away swivel nut is in taper type.
- 2. the minimally invasive tunnel dilator of reflexed umbrella-type according to claim 1, it is characterised in that：The upper end of the guide groove Groove depth be gradually reduced, driving slide support set outwards strut.
- 3. the minimally invasive tunnel dilator of reflexed umbrella-type according to claim 1, it is characterised in that：The elastic cage bar bar and cunning Dynamic support set is fixedly connected or is pivotally connected.
- 4. the minimally invasive tunnel dilator of reflexed umbrella-type according to claim 1, it is characterised in that：In the both ends of the outer tube Lock groove is provided with wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224069.1U CN207152634U (en) | 2017-03-09 | 2017-03-09 | The minimally invasive tunnel dilator of reflexed umbrella-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224069.1U CN207152634U (en) | 2017-03-09 | 2017-03-09 | The minimally invasive tunnel dilator of reflexed umbrella-type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207152634U true CN207152634U (en) | 2018-03-30 |
Family
ID=61709392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720224069.1U Expired - Fee Related CN207152634U (en) | 2017-03-09 | 2017-03-09 | The minimally invasive tunnel dilator of reflexed umbrella-type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207152634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106983543A (en) * | 2017-03-09 | 2017-07-28 | 许啸 | The minimally invasive tunnel dilator of reflexed umbrella-type |
-
2017
- 2017-03-09 CN CN201720224069.1U patent/CN207152634U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106983543A (en) * | 2017-03-09 | 2017-07-28 | 许啸 | The minimally invasive tunnel dilator of reflexed umbrella-type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20190309 |