CN204147392U - A kind of high flow capacity anti-folding guiding catheter structure - Google Patents
A kind of high flow capacity anti-folding guiding catheter structure Download PDFInfo
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- CN204147392U CN204147392U CN201420588195.1U CN201420588195U CN204147392U CN 204147392 U CN204147392 U CN 204147392U CN 201420588195 U CN201420588195 U CN 201420588195U CN 204147392 U CN204147392 U CN 204147392U
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- internal layer
- conduit
- main pipe
- high flow
- flow capacity
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Abstract
The utility model discloses a kind of high flow capacity anti-folding guiding catheter structure, comprise main pipe, described main pipe is double-layer structure, is respectively internal layer and skin, the end end of described internal layer is provided with the integrated round end with internal layer, and the end end of described internal layer is provided with some liquid outlets near the side of round end; Described main pipe inside is also fixed with a fixing flat filament, and the binding face end of described skin and internal layer is provided with excessively most advanced and sophisticated, and the end of described main pipe is also connected with the tight coupling of pressing type Lock with several separated loching head.This conduit implementation procedure technique is simple, change loaded down with trivial details technique that original technology punches on conduit and change because punching causes the problem such as strength weak and vestibule blocking to conduit, the pivotal role playing reinforcement when interior flat filament can meet the push-and-pull when conduit is advanced, revolution, guide also can meet the flexibility of radial direction when advancing.As can be seen here, this utility model solves in-situ conduit easily stifled easily broken problem easy to break.Also the risk of puncture when conduit is advanced is solved.Also greatly reduce production cost simultaneously.
Description
Technical field
This utility model relates to a kind of conduit, and more particularly one relates to the anti-folding guiding catheter of high flow capacity.
Background technology
In minimally-invasive treatment, particularly in blood vessel intervention or anesthesia procedures, the high flow capacity of conduit, the anti-folding of catheter, also to possess certain flexibility and prevent blood vessel wall or tissue injury, and the guide of conduit in traveling process controls, conduit rupture intensity etc. all needs very high requirement, and evading these risks is must solve this difficult problem on guide-tube structure.
Just for epidural anesthesia, the basic outside dimension of conduit is generally within the scope of 0.7MM-1.1MM, and the flow of conduit is at 4-10ml/min.The fracture strength of conduit requires to want 10N-15N.So these three requirements are the problems comparing contradiction, catheter outer diameter, in constant situation, can increase the intensity of conduit, but flow cannot meet again by increasing wall thickness.Meet traffic intensity cannot meet again.Particularly present way is that multiple perforation in so very thin conduit upper punch, this makes the matter worse to the intensity of conduit beyond doubt in order to medicinal liquid flows out.And tiny aperture easily blocks, bring more medical-risk.With regard to current production material, general employing modification of nylon PEBAX is many, but there is great number of issues equally, but in order to make the conveying of conduit smooth and easy, the material of general employing more than 65D, as everyone knows, macromolecular material is after being produced into the conduit of cavity, and the material that hardness is higher more easily gives a discount.This carrys out risk to surgical band again undoubtedly, and the hardware thing that rigidity is stronger, easily give patient tissue or dura mater damage.Secondary damage is with again to patient.In line with to the numerous risk of above mistake and hidden danger, we are by the technological innovation as claim one, can change and solve the great number of issues of current existence completely.
Utility model content
Utility model object: the purpose of this utility model is to solve deficiency of the prior art, there is provided a kind of safe and reliable, production technology is simple, other performance requirements of interposing catheter can be met and turn avoid potential risk, reduce the anti-folding interposing catheter of high flow capacity of cost simultaneously.
Technical scheme: a kind of high flow capacity described in the utility model anti-folding guiding catheter structure, comprise main pipe, described main pipe is double-layer structure, be respectively internal layer and skin, the end end of described internal layer is provided with the integrated round end with internal layer, and the end end of described internal layer is provided with some liquid outlets near the side of round end; Described main pipe inside is also fixed with a fixing flat filament, and the binding face end of described skin and internal layer is provided with excessively most advanced and sophisticated, and the end of described main pipe is also connected with the tight coupling of pressing type Lock with several separated loching head.
As optimization, described internal layer is spring layer, and skin is that high score is at material layer.
As optimization, one end of described fixing flat filament is fixedly connected with internal layer, and the other end of described fixing flat filament is fixedly connected with round end.
As optimization, described skin is provided with graduation mark.
As optimization, described round end is stainless steel tap.
As optimization, described outer field length is less than the length of internal layer.
As optimization, described liquid outlet is some spring annular gap liquid outlets.
Beneficial effect: this utility model has following beneficial effect:
1. main pipe is double-layer structure, outer macromolecular material, and internal layer increases Microsoft's spring, and effectively solve in-situ conduit and give a discount, fracture, flow is little;
2. catheter tip is designed to annular liquid outlet, this mouth is turn, effectively solving original punching on conduit causes conduit rupture, intensity to meet problem, solves again because tiny aperture blockage problem simultaneously, also solves the freedom and flexibility ratio that change stroke when conduit is advanced;
3. catheter tip is circular stainless steel tap, effectively solves conduit and advances to tissue injury or puncture equivalent risk problem;
4, catheter diameter is designed with a flat filament, and the axis effectively solving conduit is advanced guide, instead of guide seal wire, has again certain flexibility simultaneously, variable to roundabout course, reduces the damage to tissue or blood vessel;
5. the split type pressing lock tight coupling of the standby band of conduit, effectively facilitates clinical.
Accompanying drawing explanation
Fig. 1 is catheter body structural representation of the present utility model;
Fig. 2 is catheter body structure sectional view of the present utility model;
Fig. 3 is main pipe's structure sectional view of the present utility model;
Fig. 4 is fixing flat filament of the present utility model and round end johning knot composition;
Fig. 5 is fixing flat filament of the present utility model and internal layer johning knot composition;
Fig. 6 is the most advanced and sophisticated excessive structural schematic diagram of skin of the present utility model and internal layer;
Fig. 7 is pressing type Lock with several separated loching head tight coupling open mode schematic diagram of the present utility model;
Fig. 8 is pressing type Lock with several separated loching head tight coupling closure state schematic diagram of the present utility model.
Detailed description of the invention
A kind of high flow capacity anti-folding guiding catheter structure as shown in Fig. 1 to Fig. 8, comprise main pipe 1, main pipe 1 is double-layer structure, is made up of spring layer 2 and polymer material layer 3.The end of main pipe 1 is provided with the rustless steel round end 4 with main pipe 1, be provided with annular gap liquid outlet 5 simultaneously, and be welded and fixed flat filament 6 at round end, this fixing flat filament 6 is welded and fixed with end round end 4 by distal-to-proximal one by catheter diameter, the other end and spring layer 2 are fixed, the length of flat filament 6 is consistent with the length of spring layer 2, it not only plays a key effect to the guide of advancing in use of whole conduit, fixedly working simultaneously to head round end 4, also serves supporting role to annular liquid outlet.Due to the support of fixing flat filament 6, gapping of spring liquid outlet 5 is when being subject to external force or head resistance, and gap can not be affected, and ensure that liquid outlet flow changes never.The macromolecule layer 3 of main pipe 1 and spring layer 2 for fitting tightly, and have most advanced and sophisticated excessive 7 in binding face end, there is mark scale 8 on main pipe 1 surface, and the other end of main pipe 1 is provided with split pressing type lock tight coupling 9.
Spring layer 2 can be seriality microfilament spring, and by the outer once Overmolded covering macromolecule layer of extrusion die, adjustment extruded velocity controls outer polymer material layer wall thickness.Outer material and spring can be allowed to combine together, also length can cut into use length on demand, then extrude a macromolecular material light-wall pipe and be enclosed within outside spring, be effective through suitable outer contraction of heating.Realize all fairly simple.
Above-mentioned polymer material layer 3 length is less than the length of Microsoft's spring layer 2, end reserves 2-10MM spring layer, as the part of liquid outlet, the size of liquid outlet 5 is determined by the density (or gap) changing reserved spring layer, gap is larger, flow is higher, gap is more, flow is higher, change the method that in-situ conduit punches completely, hot strength after avoiding tiny body to punch cannot meet problem, also solve because tiny aperture plug-hole problem simultaneously, be more preferably annular fluid, solve the uneven of original local fluid, also alleviate flow velocity problem slowly simultaneously.After determining liquid outlet, round end 4 is installed, the stainless steel that round end 4 and flat filament 6 are formed in one, round end and Microspring cavity coordinate (namely main pipe's internal diameter), round end diameter is consistent with Microspring overall diameter, after installation, round end half in spring cavity (namely main pipe's internal diameter) second half be exposed at spring head end, form head round end, and seamlessly transit with spring outer diameter.Flat filament 6 is consistent with Microspring length, one end is connected with round end, the other end and spring terminal near-end are fixed, a whole like this flat filament 6 passes through catheter diameter, as the guide seal wire that conduit is advanced, support pivotal role, because flat filament is less than conduit cavity far away simultaneously to the fixing of conduit round end 4 and liquid outlet 5, thickness is quite thin, can not have an impact to the flow of conduit and the dredging of necessity seal wire completely.
The most advanced and sophisticated transition 7 of main pipe is by high-frequency apparatus molding, and can ensure that most advanced and sophisticated position material melt flows to spring crack completely, reaching most advanced and sophisticated position thin-walled layer can not layering.Reduce resistance when conduit is advanced.
The joint design be connected with main pipe becomes the pressing type lock tight coupling 9 of split, avoid doctor be expert at paracentesis time because the weight of the near-end of conduit causes catheter manipulation inconvenient, reduce flexibly, object facilitates doctor.
Main pipe's outer surface has graduation mark 8, facilitates the situation identification that doctor advances to conduit.
This utility model can realize in row interposing catheter art, conduit does not give a discount completely, flow is high, the guide of course, head flexibility ratio strengthen, tissue injury little, easy to use while greatly reduce risk.As can be seen here, this utility model is that overall safety is reliable.
Technology contents of the present utility model and technical characteristic have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from this utility model spirit based on teaching of the present utility model and announcement; therefore; this utility model protection domain should be not limited to the content that embodiment discloses; and various do not deviate from replacement of the present utility model and modification should be comprised, and contained by present patent application claim.
Claims (7)
1. a high flow capacity anti-folding guiding catheter structure, comprise main pipe (1), it is characterized in that: described main pipe (1) is double-layer structure, be respectively internal layer (2) and outer (3), the end end of described internal layer (2) is provided with and internal layer (2) integrated round end (4), and the end end of described internal layer (2) is provided with some liquid outlets (5) near the side of round end (4); Described main pipe (1) inside is also provided with a fixing flat filament (6), and described skin (3) and the binding face end of internal layer (2) are provided with most advanced and sophisticated excessive (7), and the end of described main pipe (1) is also connected with pressing type Lock with several separated loching head tight coupling (9).
2. a kind of high flow capacity according to claim 1 anti-folding guiding catheter structure, is characterized in that: described internal layer (2) is spring layer, and outer (3) are for high score is at material layer.
3. a kind of high flow capacity according to claim 1 anti-folding guiding catheter structure, is characterized in that: one end of described fixing flat filament (6) is fixedly connected with internal layer (2), and the other end of described fixing flat filament (6) is fixedly connected with round end (4).
4. a kind of high flow capacity according to claim 1 anti-folding guiding catheter structure, is characterized in that: described skin (3) is provided with graduation mark (8).
5. a kind of high flow capacity according to claim 1 anti-folding guiding catheter structure, is characterized in that: described main pipe's end is provided with round end (4).
6. a kind of high flow capacity according to claim 1 anti-folding guiding catheter structure, is characterized in that: the length of described skin (3) is less than the length of internal layer (2) and is provided with most advanced and sophisticated excessive (7).
7. a kind of high flow capacity according to claim 1 anti-folding guiding catheter structure, is characterized in that: described liquid outlet (5) is some spring annular gap liquid outlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588195.1U CN204147392U (en) | 2014-10-13 | 2014-10-13 | A kind of high flow capacity anti-folding guiding catheter structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588195.1U CN204147392U (en) | 2014-10-13 | 2014-10-13 | A kind of high flow capacity anti-folding guiding catheter structure |
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| CN204147392U true CN204147392U (en) | 2015-02-11 |
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| CN201420588195.1U Active CN204147392U (en) | 2014-10-13 | 2014-10-13 | A kind of high flow capacity anti-folding guiding catheter structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288892A (en) * | 2014-10-13 | 2015-01-21 | 南通伊诺精密塑胶导管有限公司 | High-flow anti-bending guide catheter structure |
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2014
- 2014-10-13 CN CN201420588195.1U patent/CN204147392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104288892A (en) * | 2014-10-13 | 2015-01-21 | 南通伊诺精密塑胶导管有限公司 | High-flow anti-bending guide catheter structure |
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