CN206391050U - Stent-type vascular anastomosis device - Google Patents
Stent-type vascular anastomosis device Download PDFInfo
- Publication number
- CN206391050U CN206391050U CN201621109613.XU CN201621109613U CN206391050U CN 206391050 U CN206391050 U CN 206391050U CN 201621109613 U CN201621109613 U CN 201621109613U CN 206391050 U CN206391050 U CN 206391050U
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- CN
- China
- Prior art keywords
- metallic support
- vascular anastomosis
- sacculus
- stent
- overlay film
- 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 - Fee Related
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Abstract
The utility model is related to medical instruments field, and in particular to stent-type vascular anastomosis device, it includes overlay film frame；Overlay film frame includes inner film coating, metallic support and outer film coating；Metallic support generally cylindrical shape, inner film coating, outer film coating distinguish lining in the inner side of metallic support, outside；Also include conveyer, conveyer includes the sacculus of UNICOM, connection flexible pipe and joint successively；Metallic support is that cochrome silk or the braiding of NiTi shape-memory alloy wires are formed；Sacculus is non-compliance sacculus；Sacculus is arranged in overlay film frame.The utility model is applied to the narrow deep tissue in space and carries out vascular anastomosis；The time of vascular anastomosis can be shortened；Vascellum endometrial hyperplasia can be reduced to greatest extent, it is to avoid anastomotic stricture；Blood vessel can be more conform with physiology with blood pressure in certain amplitude contract and diastole after coincideing；Blood vessel can be avoided to be slipped from overlay film frame, very reliably.
Description
Technical field
The utility model is related to medical instruments field, and in particular to stent-type vascular anastomosis device.
Background technology
With the development of Clinical Surgery, the vascular anastomosis in each section's operation operates more and more, each section's hand mentioned here
Art both includes the vascular anastomosis carried out in the routine operations such as vascular surgery, department of cardiac surgery, also including general surgery, Urology Surgery etc.
Involve during tumor enlargement excision the reconstruction of blood vessel, reconstructing blood vessel of also all kinds of solid organ transplantations etc..
But the traditional blood vessel prolene linear slits vascular anastomosis method complex operation closed, the time that coincide are long, extend remote
The Ischemia Time of histoorgan is held, previous anastomotic blood flow patency rate is have impact on, and it is serious to inner film injury.
Mechanical vascular anastomosis are a kind of blood vessels that suture is substituted or partly substituted with special vascular anastomosis device
Identical method, it can overcome the drawbacks described above of the identical method of traditional blood vessel needlework.According to identical principle, current experimental study and
There are some mechanical vascular stapling apparatus in clinical practice, such as titanacycle nail, an anastomosis clamp, simplified partial vascular anastomosis process,
Make the time shortening that coincide.
However, the various vascular anastomosis technology applied at present all expose in practice it is various not enough or scarce
Fall into.Such as needle ring method, its coincide principle be：Using 2 small rings, 6 small pins and 6 apertures are uniformly alternate on every ring, coincide
When side ends of vessels pass through small ring, turning up and is fixed on 6 small pins by 90 °；The same operation of another vascellum laterale, then by two
The pin of needle ring, hole are mutually embedded in pairing and complete to coincide.Although the support fixation of needle ring makes previous anastomotic be difficult constriction, postoperative logical
Smooth rate is high, but the longer-term persistence of needle ring also makes previous anastomotic blood vessel stiff, the atrophy of tunicae media vasorum and surrounding tissue, have impact on blood
Pipe normal contraction and the physiological function of diastole, and limit the growth of blood vessel.And occur because of endometrial hyperplasia caused by foreign matter
Anastomotic stricture happens occasionally, and can not but be handled with intervention balloon expandable method.Such as using the identical blood of blood vessel anastomosis clamp (VCS)
Guan Shixian is with the pincers that turn up by two broken ends of fractured bone vascular wall valgus alignments, and " C " the shape anastomosis clamp interruption that number is not waited is clamped two ends and turned up pair
The vascular wall got togather can be completed to coincide, and normal blood vessels wall tissue is remained between anastomosis clamp, and previous anastomotic can be made to have necessarily
Elasticity, be not likely to produce it is stiff and narrow, but anastomosis clamp residual easily externa formation foreign body granuloma, and this method coincide
Time is partially long.
In summary, the various vascular anastomosis device applied at present all expose in practice it is various not enough or
Defect, most importantly makes previous anastomotic stiff and narrow, influences match result, while the time of coincideing or relatively long, blood vessel kiss
Attach together and put still immature；So, the section office using vascular anastomosis as basic operation still kiss using needlework sewing as unique blood vessel
Conjunction mode.
CN00130855 discloses artificial blood vessel；The inwall of the memorial alloy intelligent element of the tubular structure of the artificial blood vessel
And/or adhering to macromolecule membrane or biomembrane on outer wall, memorial alloy intelligent element is constituted with macromolecule membrane or biomembrane
Lumen of vessels, lumen of vessels end periphery is provided with stapler.Using during the artificial blood vessel, it is necessary to lumen of vessels is inserted into host blood vessel,
Then recover memorial alloy intelligent element by the body temperature of human body, so that lumen of vessels expands, and then realize vascular anastomosis.By
CN00130855 accompanying drawing 38, accompanying drawing 39 is understood, when lumen of vessels is inserted into host blood vessel, certain sky is needed between two sections of blood vessels
Between, it feeder vessels chamber is inserted host blood vessel；When carrying out vascular anastomosis for the narrow deep tissue in space, due to
Insufficient space, the artificial blood vessel is also difficult to vascular anastomosis.
Utility model content
To solve the above problems, the purpose of this utility model is to provide stent-type vascular anastomosis device, space is useful in
Narrow deep tissue carries out vascular anastomosis, and can shorten the time of vascular anastomosis.
To achieve the above object, the utility model is punctured in blood vessel to be anastomosed by puncturing sheath, and uses conveyer
Overlay film frame is delivered to previous anastomotic, so that being useful in the narrow deep tissue in space carries out vascular anastomosis；Sacculus is filled
Gas makes balloon expandable, overlay film frame is expanded into row vascular anastomosis by physical means, can shorten vascular anastomosis
Time.
The detailed technology scheme that the utility model is taken is：Stent-type vascular anastomosis device, it includes overlay film frame；Overlay film
Support includes inner film coating, metallic support and outer film coating；Metallic support generally cylindrical shape, inner film coating, outer film coating
Lining is in the inner side of metallic support, outside respectively；Also include conveyer, conveyer includes the sacculus of UNICOM, connection flexible pipe successively
And joint；Metallic support is that cochrome silk or the braiding of NiTi shape-memory alloy wires are formed；Sacculus is non-compliance ball
Capsule；Sacculus is arranged in overlay film frame.
Further, the sheath of hard is included, sheath is enclosed on connection flexible pipe.Can easily by overlay film frame and
Sacculus is delivered to previous anastomotic.
Further, the two ends of metallic support be fixedly installed respectively at least two around the axle center of metallic support uniformly fall
The barb at the two ends of hook and metallic support is towards on the contrary, barb with metallic support identical material by being made.Blood vessel can be avoided
Slipped from overlay film frame, it is reliable.
Further, the angle of barb and horizontal plane is hangnail included angle B, and hangnail included angle B is 45 degree.
Further, the two ends of metallic support are respectively arranged with two circle barbs, and the quantity for often enclosing barb is six.
Further, inner film coating, outer film coating are expanded PTFE or PLLA or poly- L- breasts
Acid is made.
Further, metallic support is made for a diameter of 0.15mm cochrome silk.
Further, sacculus is made up of polyvinyl chloride.
Further, a diameter of 5mm of metallic support, a length of 30mm.
Compared with prior art, the utility model has the advantages that：1st, suitable for the narrow deep in space
Tissue carries out vascular anastomosis；2nd, the time of vascular anastomosis can be shortened；3rd, vascellum endometrial hyperplasia can be reduced to greatest extent, kept away
Exempt from anastomotic stricture；4th, after coincideing blood vessel can with blood pressure in certain amplitude contract and diastole and, be more conform with physiology；5th, may be used
To avoid blood vessel from being slipped from overlay film frame, very reliably.
Brief description of the drawings
Fig. 1 is the schematic diagram of embodiment one；In figure, sacculus and overlay film frame are contraction state.
Fig. 2 be embodiment one overlay film frame be expansion state when schematic diagram.
Fig. 3 is the partial sectional view of A portions amplification.
Fig. 4 is schematic diagram when embodiment one is used；In figure, overlay film frame and sacculus are contraction state and conveyed
To previous anastomotic.
Fig. 5 is schematic diagram when embodiment one is used；In figure, overlay film frame and sacculus are in previous anastomotic and to expand shape
State.
Fig. 6 is schematic diagram when embodiment one is used；In figure, overlay film frame is expansion state, and sacculus has been withdrawn from.
Fig. 7 is the schematic diagram of embodiment two.
Fig. 8 is schematic diagram when embodiment two is used；In figure, overlay film frame and sacculus are contraction state and pass through sheath
Pipe is transported to previous anastomotic.
Overlay film frame 1；Inner film coating 11；Metallic support 12；Outer film coating 13；Barb 14；Conveyer 2；Sacculus 21；Connection
Flexible pipe 22；Joint 23；Sheath 3；Blood vessel 1 to be anastomosed；Blood vessel 25 to be anastomosed；Hangnail included angle B；Simple stitch points C；Point of puncture
D。
Embodiment
Embodiment one：
The present embodiment is applied to identical 4-5mm blood vessel.
Fig. 1-Fig. 3 is referred to, the utility model is stent-type vascular anastomosis device, and it includes overlay film frame 1 and conveying
Device 2.
Overlay film frame 1 includes inner film coating 11, metallic support 12 and outer film coating 13；
Conveyer 2 includes the sacculus 21 of UNICOM, connection flexible pipe 22 and joint 23 successively.
The generally cylindrical shape of metallic support 12, metallic support 12 forms for a diameter of 0.15mm cochrome silk braiding.
The a diameter of 5mm of metallic support 12, a length of 30mm；Suitable for the blood vessel for the 4-5mm diameters that coincide.Metallic support 12 can also be other
Size, it is adaptable to the blood vessel of other diameters.
The two ends of metallic support 12 be fixedly installed respectively at least two around the uniform barb 14 in the axle center of metallic support 12,
And the barb 14 at the two ends of metallic support 12 is towards on the contrary, barb 14 with the identical material of metallic support 12 by being made.Barb 14
Angle with horizontal plane is hangnail included angle B, and hangnail included angle B is preferably 45 degree.The two ends of metallic support 12 are respectively arranged with two
Circle is (uniform and to be distributed in the barb 14 of the circular cross-section of same metallic support 12 be a circle barb around the axle center of metallic support 12
14) barb 14, the quantity for often enclosing barb 14 is six.
Inner film coating 11, outer film coating 13 distinguish lining in the inner side of metallic support 12, outside.
Inner film coating 11, outer film coating 13 are that expanded PTFE (ePTFE) is made.
Sacculus 21 is non-compliance sacculus；Sacculus 21 is arranged in overlay film frame 1 (i.e. in inner film coating 11).Sacculus 21 is
Polyvinyl chloride (PVC) is made.
The operation principle of the stent-type vascular anastomosis device of embodiment is：Before use, pre-prepd air extractor is (attached
Figure is not drawn into, such as syringe, compression pump etc.) insertion joint 23, and the gas in sacculus 21 is extracted out, so that sacculus 21
Shrink；Overlay film frame 1 is folded, the overlay film frame after folding 1 is attached on sacculus 21.
Referring to Fig. 4, when carrying out vascular anastomosis, first blood vessel 1 to be anastomosed and blood vessel to be anastomosed 25 are repaired, furthered,
And the fixation (slightly do the suturing of 2-3 pins in simple stitch points C, fixed) of 2-3 pins is slightly made of blood vessel suture；In blood vessel to be anastomosed
25 puncture and (form point of puncture D), and it is identical to promote connection flexible pipe 22 to be delivered to overlay film frame 1 and sacculus 21 from point of puncture D
Mouthful.
Referring to Fig. 5, by gas injection device (accompanying drawing is not drawn into, such as syringe, compression pump etc.) insertion joint 23, and to
Sacculus 21 injects gas so that sacculus 21 is expanded, volume becomes big, and sacculus 21 expands overlay film frame 1, until overlay film frame 1 with
The inwall of blood vessel 1 to be anastomosed and the inwall of blood vessel to be anastomosed 25 are brought into close contact.Barb 14 pierces through blood vessel one to be anastomosed respectively
4 and blood vessel to be anastomosed 25, blood vessel 1 to be anastomosed and blood vessel to be anastomosed 25 can be avoided to be slipped from overlay film frame 1.
It is, of course, also possible to which overlay film frame 1 and blood vessel 1 to be anastomosed and blood vessel to be anastomosed 25 are sutured with blood vessel suture
Together, blood vessel 1 to be anastomosed and blood vessel to be anastomosed 25 is further avoided to be slipped from overlay film frame 1 (even if without metal branch
Without barb 14 on frame 12, this method is also suitable).
Referring to Fig. 6, air extractor (accompanying drawing is not drawn into, such as syringe, compression pump etc.) is inserted into joint 23, and will
Gas in sacculus 21 is extracted out, so that sacculus 21 shrinks, sacculus 21 is withdrawn from from point of puncture D, point of puncture D is simply sutured, blood vessel
It coincide and completes.
From the above, it is seen that vascular anastomosis can both be completed twice by only needing to simple suture, vascular anastomosis operation is compared
Simply, the time of vascular anastomosis can be shortened.
The expansion of sacculus 21 drives overlay film frame 1 to expand, and the speed ratio for expanding overlay film frame 1 is very fast, can contracting blood vessel kiss
The time of conjunction；Overlay film frame 1 can also be made equably to expand, and then make anastomosis of blood vessel pairing uniform, match result is reliable.
Metallic support 12 is that cochrome silk braiding is formed, and overlay film frame 1 can be made to have certain elasticity, blood vessel after coincideing
Physiology can be more conform with blood pressure in certain amplitude contract and diastole.
, can be to greatest extent because inner film coating 11, outer film coating 13 distinguish lining in the inner side of metallic support 12, outside
Reduce vascellum endometrial hyperplasia in ground, it is to avoid anastomotic stricture.
Overlay film frame 1 and sacculus 21 are to be delivered to previous anastomotic, blood vessel 1 and blood to be anastomosed to be anastomosed from point of puncture D
Space is not needed to insert overlay film frame 1 between pipe 25；Therefore, the stent-type vascular anastomosis device of the present embodiment is also suitable
The narrow deep tissue in space carries out vascular anastomosis.
Barb 14 pierces through blood vessel 1 to be anastomosed and blood vessel to be anastomosed 25 respectively, can avoid blood vessel 1 to be anastomosed with
It is reliable and blood vessel 25 to be anastomosed is slipped from overlay film frame 1.
Embodiment two
The present embodiment and the difference of embodiment one are that the present embodiment also includes the sheath 3 of hard, and sheath 3 is enclosed on
Connect on flexible pipe 22.
Referring to Fig. 7, before use, by pre-prepd air extractor (accompanying drawing is not drawn into, such as syringe, compression pump etc.)
Joint 23 is inserted, and the gas in sacculus 21 is extracted out, so that sacculus 21 shrinks；Overlay film frame 1 is folded, makes folding
The overlay film frame 1 of poststack is attached on sacculus 21；Then overlay film frame 1 and sacculus 21 are filled in into sheath 3.
Referring to Fig. 8, one end of the sheath 3 of hard is inserted into previous anastomotic, connection flexible pipe 22 is then promoted to make overlay film branch
Frame 1 and sacculus 21 depart from from sheath 3；Because sheath 3 is hard, in that context it may be convenient to by overlay film frame 1 and sacculus 21
It is delivered to previous anastomotic.
After overlay film frame 1 is expanded, air extractor (accompanying drawing is not drawn into, such as syringe, compression pump etc.) is inserted into joint 23,
And the gas in sacculus 21 is extracted out, so that sacculus 21 shrinks, sacculus 21 and sheath 3, point of puncture are withdrawn from from point of puncture D
D is simply sutured, and vascular anastomosis is to complete.
It should be noted that metallic support 12 can also work out for memory wire；Such as, NiTi shape memories are closed
Gold.The recovery temperature of used NiTi marmems can between -10 DEG C -55 DEG C, generally 20 DEG C -37 DEG C it
Between, preferably 33 DEG C.The original shape of metallic support 12 is cylindrical shape；Using it is preceding by overlay film frame 1 and barb 14 less than
Folded at a temperature of recovery temperature.When carrying out vascular anastomosis, overlay film frame 1 and sacculus 21 are delivered to previous anastomotic, Ran Houtong
Gas injection device (accompanying drawing is not drawn into, such as syringe, compression pump etc.) insertion joint 23 is crossed, and high-temperature gas is injected to sacculus 21
(such as 37 DEG C of gases), while overlay film frame 1 is expanded by the sacculus 21 of expansion, also pass through the sacculus 21 after expansion
Heat is transmitted to overlay film frame 1, can shorten the time that overlay film frame 1 and barb 14 recover shape, and then kiss blood vessel
The time of conjunction significantly shortens.
It should be noted that inner film coating 11 and outer film coating 13 can also be made up of degradation material, such as, and poly- L-
Lactide (Poly L-lactide), poly (l-lactic acid) (Poly L-lactic acid).
It is to be appreciated that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertical ", " water
It is flat ", " top ", " bottom ", " interior ", the orientation of the instruction such as " outer " or position relationship for based on orientation shown in the drawings or position relationship,
Only be for ease of description the utility model and simplify describe, rather than indicate or infer meaning device or element must have spy
Fixed orientation, it is specific azimuth configuration and operation, thus it is not intended that protecting the limitation of content to the utility model.
Embodiment above is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution and improvements for being done etc. within the spirit and principle of work, should be included in this creation protection domain it
It is interior.
Claims (9)
1. stent-type vascular anastomosis device, including overlay film frame (1)；Overlay film frame (1) includes inner film coating (11), metallic support
And outer film coating (13) (12)；Metallic support (12) generally cylindrical shape, inner film coating (11), outer film coating (13) are served as a contrast respectively
Overlay on inner side, the outside of metallic support (12)；It is characterized in that：
Also include conveyer (2), the conveyer (2) includes the sacculus (21) of UNICOM, connection flexible pipe (22) and joint successively
(23)；The metallic support (12) is that cochrome silk or the braiding of NiTi shape-memory alloy wires are formed；Sacculus (21) is non-
Compliant balloon；Sacculus (21) is arranged in overlay film frame (1).
2. stent-type vascular anastomosis device as claimed in claim 1, it is characterised in that：Also include the sheath (3) of hard, it is described
Sheath (3) is enclosed on the connection flexible pipe (22).
3. stent-type vascular anastomosis device as claimed in claim 1, it is characterised in that：The two ends of the metallic support (12) point
At least two are not fixedly installed around the uniform barb (14) in the axle center of the metallic support (12) and the metallic support (12)
Two ends barb (14) towards on the contrary, barb (14) with the metallic support (12) identical material by being made.
4. stent-type vascular anastomosis device as claimed in claim 3, it is characterised in that：The barb (14) and the folder of horizontal plane
Angle is hangnail included angle B, and hangnail included angle B is 45 degree.
5. stent-type vascular anastomosis device as claimed in claim 3, it is characterised in that：The two ends of the metallic support (12)
Two circle barbs (14) are respectively arranged with, the quantity for often enclosing barb (14) is six.
6. stent-type vascular anastomosis device as claimed in claim 1, it is characterised in that：It is the inner film coating (11), described outer
Layer overlay film (13) is that expanded PTFE or PLLA or poly (l-lactic acid) are made.
7. the stent-type vascular anastomosis device as described in claim 1-6 is any, it is characterised in that：The metallic support (12) is
A diameter of 0.15mm cochrome silk is made.
8. the stent-type vascular anastomosis device as described in claim 1-6 is any, it is characterised in that：The sacculus (21) is polychlorostyrene
Ethene is made.
9. the stent-type vascular anastomosis device as described in claim 1-6 is any, it is characterised in that：The metallic support (12) is straight
Footpath is 5mm, a length of 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109613.XU CN206391050U (en) | 2016-10-10 | 2016-10-10 | Stent-type vascular anastomosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109613.XU CN206391050U (en) | 2016-10-10 | 2016-10-10 | Stent-type vascular anastomosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206391050U true CN206391050U (en) | 2017-08-11 |
Family
ID=59507831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621109613.XU Expired - Fee Related CN206391050U (en) | 2016-10-10 | 2016-10-10 | Stent-type vascular anastomosis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206391050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116570400A (en) * | 2023-07-14 | 2023-08-11 | 山东百多安医疗器械股份有限公司 | Restenosis-resistant degradable stent system for auxiliary suturing of small blood vessels |
-
2016
- 2016-10-10 CN CN201621109613.XU patent/CN206391050U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116570400A (en) * | 2023-07-14 | 2023-08-11 | 山东百多安医疗器械股份有限公司 | Restenosis-resistant degradable stent system for auxiliary suturing of small blood vessels |
| CN116570400B (en) * | 2023-07-14 | 2023-09-26 | 山东百多安医疗器械股份有限公司 | Restenosis-resistant degradable stent system for auxiliary suturing of small blood vessels |
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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: 20170811 Termination date: 20181010 |