CN208990016U - A kind of hemadostewnosis sacculus dilating catheter without blocking blood flow - Google Patents
A kind of hemadostewnosis sacculus dilating catheter without blocking blood flow Download PDFInfo
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- CN208990016U CN208990016U CN201721725938.5U CN201721725938U CN208990016U CN 208990016 U CN208990016 U CN 208990016U CN 201721725938 U CN201721725938 U CN 201721725938U CN 208990016 U CN208990016 U CN 208990016U
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- sacculus
- catheter
- dilating
- blood flow
- hemadostewnosis
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Abstract
The utility model belongs to medical instruments field, a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow is provided, including the inner catheter for wearing seal wire and the outer catheter with inner catheter coaxial arrangement, the outer catheter front end is provided with dilating sacculus around outer catheter outer wall, the dilating sacculus is connected to outer catheter by connecting tube, and the channel for being used for blood circulation is formed between the dilating sacculus and outer catheter.The technical solution of the utility model can be during blood vessel dilatation, make to form channel among sacculus, allow endovascular blood circulation, continues to keep important blood vessels forward blood flow, to increase patient tolerability, Low perfusion stroke risk after common balloon expandable blocking blood flow is reduced.
Description
Technical field
The utility model relates to medical instruments fields, and in particular to a kind of hemadostewnosis balloon expandable without blocking blood flow
Conduit.
Background technique
Hemadostewnosis, occlusion are especially the disease of a kind of high disability rate and high mortality to cerebral artery vessel, for blood
Pipe disease, in artery sclerosis, narrow and occlusive disease, vascular lesion balloon dilatation and stent implantation technique are main treatments
One of method, concrete mode are that sacculus is sent to diseased region, by full and dilating sacculus to extravascular squeeze patch come
Expand intravascular space diameter, most the bracket of diseased region implantation finally support lumen achievees the purpose that treat hemadostewnosis.
At present in carotid stents plasty, the sacculus dilating catheter of clinical use blocks quilt when being expanded completely
The blood vessel of expansion, carotid artery flow are in sealed condition, the compensatory difference of side shoot it is sensitive to ischemic or need the balloon expandable time compared with
Long blood vessel is easy to that stroke event occurs because of ischemic, especially in the case where patient only exists single arteria carotis, occurs
Unexpected risk is bigger.
Summary of the invention
For the defects in the prior art, the utility model provides a kind of hemadostewnosis balloon expandable without blocking blood flow
Conduit can make to form channel between dilating sacculus and outer catheter during blood vessel dilatation, allow endovascular blood circulation,
Continue to keep arteria carotis forward blood flow to brain tissue blood supply, to increase patient tolerability, reduces Low perfusion stroke risk.
Specific technical solution is as described below:
A kind of hemadostewnosis sacculus dilating catheter without blocking blood flow, including for wearing seal wire inner catheter and with it is interior
The outer catheter of conduit coaxial arrangement, the outer catheter front end are provided with dilating sacculus, the dilating sacculus around outer catheter outer wall
It is connected to outer catheter by connecting tube, forms the channel for being used for blood circulation between the dilating sacculus and outer catheter.
It further limits, the dilating sacculus and connecting tube are all made of rubber or silica gel material integrated molding.
Preferably, the connecting tube is several, and is evenly distributed between outer catheter and dilating sacculus.
It further limits, several support rods is additionally provided between the outer catheter and dilating sacculus.
Preferably, the support rod is 4, and is uniformly mounted between outer catheter and dilating sacculus.
It further limits, the rear end of the inner catheter is pierced by from from the front end of outer catheter to the 1/4 of rear end.
It further limits, the outer catheter front end is arc end.
It further limits, the seal wire is made of medical stainless steel material, and the diameter of the seal wire is 0.14mm.
It further limits, the dilating sacculus length is 20-60mm.
It further limits, the diameter after the dilating sacculus qi of chong channel ascending adversely is 3-10mm.
Compared with prior art, the utility model the utility model has the advantages that
1, it in the operation of arteria carotis balloon expandable, when dilating sacculus fills, is formed and is used between outer catheter and dilating sacculus
The channel of blood circulation continues to keep arteria carotis forward blood flow to brain tissue blood supply, to increase the tolerance of patient, reduces
Stroke risk.
2, increase several support rods between outer catheter and dilating sacculus, help to improve the smoothness in channel, thus into
One step increases therapeutic effect.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar appended drawing reference.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is a kind of structural representation of the hemadostewnosis sacculus dilating catheter without blocking blood flow provided by the utility model
Figure；
Fig. 2 is structure partial enlarged drawing at A in Fig. 1；
Fig. 3 is cross-sectional view of the structure at A in Fig. 1；
Fig. 4 is that structure increases the sectional view of support rod at A in Fig. 1；
In appended drawing reference, 1, seal wire；2, inner catheter；3, outer catheter；4, driving means；5, dilating sacculus；6, connecting tube；7,
Channel；8, support rod.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and it is originally practical to cannot be used as a limitation limitation
Novel protection scope.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
Embodiment 1:
As shown in Figure 1 to Figure 3, a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow, including led for wearing
The inner catheter 2 of silk 1 and the outer catheter 3 being coaxially disposed with inner catheter 2,3 front end of outer catheter are provided with around 3 outer wall of outer catheter
Dilating sacculus 5, the dilating sacculus 5 are connected to by connecting tube 6 with outer catheter 3, are formed between the dilating sacculus 5 and outer catheter 3
Channel 7 for blood circulation.
Specifically, the dilating sacculus 5 and connecting tube 6 are all made of rubber or silica gel material is integrally formed, the connecting tube 6
It is fixedly mounted on outer catheter 3, uses protection blood vessel with better.
Further, the connecting tube 6 is several, and is evenly distributed between outer catheter 3 and dilating sacculus 5, excellent
Selection of land, connecting tube 6 is 4 in the present embodiment, is mounted on outer catheter 3 and dilating sacculus 5 centered on 3 longitudinal center line of outer catheter
Between, this set can quickly fill dilating sacculus 5, filling time is reduced, so that the time that blood slowly circulates is reduced, into
One step reduces operation stroke risk.
Further, in the rear end of inner catheter 2 from the front end of outer catheter 3 to rear end 1/4 at be pierced by, wherein inner catheter 2
Long 29cm is selected, outer catheter 3 selects long 135cm, to match to the greatest extent with length of vessel.
Further, 3 front end of outer catheter is arc end, stabs blood vessel after can preventing outer catheter 3 from entering blood vessel.
Further, the seal wire 1 is made of medical stainless steel material, and the diameter of the seal wire 1 is 0.14mm.
Further, 5 length of dilating sacculus is 20-60mm, preferably 30mm.
Further, the diameter after 5 qi of chong channel ascending adversely of dilating sacculus is 3-10mm, preferably 6mm.
The technical solution of the utility model is achieved in that driving means 4 fills dilating sacculus 5 by outer catheter 3,
The channel 7 for being used for blood circulation is formed after full between outer catheter 3 and dilating sacculus 5, endovascular blood is made to continue to keep blood
Infusate flow improves the success rate of operation to increase the tolerance of patient, reduces stroke risk.
Embodiment 2:
As shown in figure 4, making further optimization in 1 identical situation of implementation in basic structure, in outer catheter 3 and expanding
It opens and is additionally provided with several support rods 8 between sacculus 5, it is preferable that support rod 8 is 8, is divided to two groups to be uniformly mounted on outer catheter 3
Between dilating sacculus 5.
Increase several support rods 8 between outer catheter 3 and dilating sacculus 5, help to improve the smoothness in channel, increases and expand
The stability of sacculus 5 is opened, to increase patient tolerability, reduces Low perfusion stroke risk.
It should be explained that, driving means 4 can inject gas to dilating sacculus 5 or rush contrast agent and water in this above-mentioned implementation
Composite fluid.
Embodiment 3: it in basic structure in 1 identical situation of implementation, is further described, the outer catheter 3 is located at
The center of dilating sacculus 5, also eccentric setting.
For being located at the blood cake of blood vessel side, the hemadostewnosis sacculus dilating catheter of eccentric structure can be used, improve to blood
The squeezing effect of spot, to further increase surgical result.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (10)
1. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow, it is characterised in that: including for wearing seal wire (1)
Inner catheter (2) and the outer catheter (3) being coaxially disposed with inner catheter (2), outer catheter (3) front end is around the outer of outer catheter (3)
Wall is provided with dilating sacculus (5), and the dilating sacculus (5) is connected to outer catheter (3) by connecting tube (6), the dilating sacculus (5)
The channel (7) for being used for blood circulation is formed between outer catheter (3).
2. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that: institute
It states dilating sacculus (5) and connecting tube (6) is all made of rubber or silica gel material is integrally formed.
3. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that: institute
Stating connecting tube (6) is several, and is evenly distributed between outer catheter (3) and dilating sacculus (5).
4. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that:
Several support rods (8) are additionally provided between the outer catheter (3) and dilating sacculus (5).
5. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 4, it is characterised in that: institute
Stating support rod (8) is 4, and is uniformly mounted between outer catheter (3) and dilating sacculus (5).
6. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that: institute
The rear end for stating inner catheter (2) is pierced by from the front end to the 1/4 of rear end of outer catheter (3).
7. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that: institute
Stating outer catheter (3) front end is arc end.
8. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that: institute
It states seal wire (1) to be made of medical stainless steel material, the diameter of the seal wire (1) is 0.14mm.
9. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that: institute
The length for stating dilating sacculus (5) is 20-60mm.
10. a kind of hemadostewnosis sacculus dilating catheter without blocking blood flow according to claim 1, it is characterised in that:
Diameter after dilating sacculus (5) qi of chong channel ascending adversely is 3-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725938.5U CN208990016U (en) | 2017-12-12 | 2017-12-12 | A kind of hemadostewnosis sacculus dilating catheter without blocking blood flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725938.5U CN208990016U (en) | 2017-12-12 | 2017-12-12 | A kind of hemadostewnosis sacculus dilating catheter without blocking blood flow |
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| Publication Number | Publication Date |
|---|---|
| CN208990016U true CN208990016U (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721725938.5U Active CN208990016U (en) | 2017-12-12 | 2017-12-12 | A kind of hemadostewnosis sacculus dilating catheter without blocking blood flow |
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| CN (1) | CN208990016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262381A (en) * | 2021-07-02 | 2021-08-17 | 深圳麦普奇医疗科技有限公司 | Balloon dilatation catheter |
-
2017
- 2017-12-12 CN CN201721725938.5U patent/CN208990016U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262381A (en) * | 2021-07-02 | 2021-08-17 | 深圳麦普奇医疗科技有限公司 | Balloon dilatation catheter |
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