CN103889496B - Foley's tube - Google Patents
Foley's tube Download PDFInfo
- Publication number
- CN103889496B CN103889496B CN201280053115.6A CN201280053115A CN103889496B CN 103889496 B CN103889496 B CN 103889496B CN 201280053115 A CN201280053115 A CN 201280053115A CN 103889496 B CN103889496 B CN 103889496B
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- China
- Prior art keywords
- hypotube
- foley
- heart yearn
- tube
- trocar sheath
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0059—Catheters; Hollow probes characterised by structural features having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking
Abstract
The invention provides foley's tube.Foley's tube (10) is provided with conductor housing (20) at base end side, is provided with sacculus (40), possesses in front: the hypotube (31) being provided with breach forming portion (31b) in front; What base end part was bonded on above-mentioned hypotube (31) compares the position of above-mentioned breach forming portion (31b) by base end side, and from the trocar sheath (32) that this junction (32a) extends towards the position comparing hypotube (31) forward side; And the heart yearn (33) of the inner chamber of hypotube (31) and the inner chamber of trocar sheath (32) is inserted through from starting point adjacency section (31a1) towards front, heart yearn (33) is fixed in hypotube (31) at starting point adjacency section (31a1).According to this foley's tube, can provide and can prevent from producing the position that sharply uprises of hardness in breach forming portion and heart yearn can being fixed on well the foley's tube of hypotube.
Description
Technical field
The present invention relates to foley's tube.
Background technology
As the element forming foley's tube, comprise the hypotube (hypo tube) using metal as material and be arranged at the resinous trocar sheath of the position comparing the forward side of this hypotube (sacculus side).The nonhomogeneous hardness of above-mentioned hypotube and trocar sheath is very large.Therefore, such as, when being pushed in the body cavitys such as blood vessel by foley's tube, from hypotube to the part of trocar sheath transition, there is the problem producing bending or be difficult to the power transmitted when foley's tube is operated.
As the method for reply the problems referred to above, there is following method: (1) covers heart yearn in the bonding part of hypotube and trocar sheath, be formed as the structure (such as with reference to patent documentation 1) that heart yearn is inserted into the front of hypotube and the predetermined portion of trocar sheath.According to the method, by inserting wire rod, the nonhomogeneous hardness of the transition part office of hypotube and trocar sheath can not become large, and firmness change becomes level and smooth.
And, as the additive method of reply the problems referred to above, there is following method: (2) implement machining spiral groove to hypotube (base shaft), and be formed as the structure (such as with reference to patent documentation 2) that this spiral fluted spacing narrows along with the front end of trend foley's tube.According to the method, the hardness being formed as hypotube is step-down gradually along with trend front (sacculus side), and the state changed smoothly.
Patent documentation 1: Japanese Kohyo 10-503386 publication (the 10th page, Fig. 1 etc.)
Patent documentation 2: Japanese Unexamined Patent Publication 2001-149482 publication (the 0039th section, Fig. 2 ~ Fig. 5 etc.)
But, in above-mentioned patent documentation 2, disclose heart yearn (reinforcement wire rod) extends to guide line peristome foley's tube from conductor housing (hub).But when being formed as this structure, because the entirety throughout hypotube has all inserted heart yearn, therefore the volume of inner cavity reduces the amount of inserting the heart yearn of the inner cavity of hypotube.When the inner space that such liquid circulates is reduced, be formed as making inflation, shrinking the state needing the time.Especially, when circulated liquid is the high object of the viscosity of contrast agent and so on, the impact that the inner space that liquid circulates is reduced becomes remarkable.Therefore, preferred heart yearn takies the inner cavity of hypotube hardly.
Mention minimizing in order to what suppress the inner cavity of this hypotube, such as, consider the front being formed as heart yearn to be fixed on hypotube as patent documentation 1, and heart yearn is using this standing part as starting point towards the structure that front (sacculus side) extends.But the hardness of the fixed position of heart yearn uprises.Therefore, even if implement machining spiral groove (processing helicla flute) as shown in patent documentation 2, still exist in fixed position firmness change and problem that is unsmooth but that sharply uprise.That is, especially in the front of spiral fluted working position, because spiral fluted spacing narrows, therefore, if heart yearn is fixed on this position, then there is fixed position hardening, hinder the problem of the level and smooth firmness change of hypotube.
Summary of the invention
The present invention makes to complete based on said circumstances, and its object is to provides a kind of foley's tube can reaching following two objects: (1) can prevent the volume of the inner cavity caused because of the existence of heart yearn from reducing; (2) can prevent the part that there is breach in hypotube from producing the position that sharply uprises of hardness and heart yearn can be fixed on hypotube well.
In order to solve above-mentioned problem, foley's tube of the present invention is the foley's tube being provided with sacculus in front, it is characterized in that, above-mentioned foley's tube possesses: hypotube, and this hypotube has and forms breach forming portion jaggy in front; Trocar sheath, what the base end part of this trocar sheath was bonded on hypotube compares the position of breach forming portion by base end side, and extends from this position towards front; And heart yearn, this heart yearn is fixed on the starting point adjacency section adjacent with the cardinal extremity of breach forming portion, and is inserted through hypotube and trocar sheath from this position towards front.
Further, foley's tube of the present invention, except above-mentioned invention, is also preferably formed to: heart yearn relative to the fixed position of hypotube in the position comparing forward side, the junction between hypotube and trocar sheath.
Further, foley's tube of the present invention, except above-mentioned invention, is also preferably formed to: breach is helicla flute, and spiral fluted separation narrows gradually along with from base end side trend front.
According to the present invention, in foley's tube, (1) can prevent the volume of inner cavity from reducing.In addition, the position that (2) can prevent the part generation hardness that there is breach in hypotube from sharply uprising, and heart yearn can be fixed on hypotube well.
Accompanying drawing explanation
Fig. 1 is the integrally-built figure of the foley's tube illustrated involved by an embodiment of the invention.
Fig. 2 is the partial sectional view that structure in the foley's tube of Fig. 1, axle main part is shown.
Fig. 3 be by the foley's tube of Fig. 1, structure near the base end part of heart yearn amplify shown in partial sectional view.
Fig. 4 is the integrally-built figure that heart yearn is shown.
Fig. 5 is the partial sectional view of the structure of the axle main part illustrated involved by variation.
Detailed description of the invention
Below, based on accompanying drawing, the foley's tube 10 involved by an embodiment of the invention is described.
As shown in Figure 1, foley's tube 10 has conductor housing 20, axle main part 30 and sacculus 40.In addition, in the following description, the side that the sacculus 40 in the length direction of foley's tube 10 is positioned at is described as base end side as front, using the side that conductor housing 20 is positioned at.
As shown in Figure 1, the part held when conductor housing 20 is and performs the operation, is provided with hollow space that is connecting pipeline 21 at this conductor housing 20.
As shown in Figure 1 and Figure 2, axle main part 30 is provided with hypotube 31, trocar sheath 32 and heart yearn 33.Hypotube 31 is pipes of metal (aftermentioned).The base end side of hypotube 31 is connected to conductor housing 20.Further, the inner chamber of hypotube 31 is communicated with the connecting pipeline 21 of conductor housing 20.
Hypotube 31 is formed using metal as material, wherein, such as, is preferably stainless steel alloy, cobalt-chromium alloy, the Ni-Ti alloy of SUS304, SUS304L and so on.
The leading section of this hypotube 31 is provided with helicla flute 311.Helicla flute 311 is spiral helicine grooves of through hypotube 31.In this manual, the barrel not arranging helicla flute 311 is defined as tube body 31a, the part being provided with helicla flute 311 in hypotube 31 is defined as breach forming portion 31b.
As shown in Figure 2, helicla flute 311 is arranged to along with from base end side trend front, separation narrows gradually.As concrete size example, the separation being sometimes arranged to the most forward side of helicla flute 311 is such as 0.5mm, helicla flute 311 be 3.5mm by the separation of base end side.In addition, the separation of helicla flute 311 is not limited to this numerical value, can get various value.
Further, in this manual, by tube body 31a, the part adjacent with breach forming portion 31b be defined as starting point adjacency section 31a1.Starting point adjacency section 31a1 can be formed as the extreme 0.1mm ~ 100mm apart from breach forming portion, is preferably 0.1mm ~ 50mm, more preferably 0.1mm ~ 30mm.
Outboard tube 32 is pipes of resin-made (aftermentioned).As shown in Figure 2, trocar sheath 32 and hypotube 31 engage by the position of base end side at the breach forming portion 31b comparing hypotube 31.In addition, the joint between trocar sheath 32 and hypotube 31 can be realized by thermal welding, also can realize by bonding agent, and also can realize by method in addition.The base end side of the inner ring of trocar sheath 32 and the inner space of hypotube 31.
In addition, trocar sheath 32 is formed using polyamide series resin as material.Polyamide-based resin is following concept: representational is such as nylon 6, nylon 64, nylon66 fiber, NYLON610, nylon 612, Stanyl (DSM)., nylon 9, nylon 11, nylon 12, N-alkoxyl-methyl modification of nylon, hexamethylene diamine-isophthalic acid condensation polymer, m-xylene diamine-adipic acid condensation polymer such using various aliphatic or aromatic polyamide as hard segment, with polyester, the polymer of polyethers etc. is as the block copolymer of hard and soft chain segment, in addition, also comprise the polymer alloy (polymer blend of the resin of above-mentioned polyamide and rich flexibility, glycerol polymerization, atactic polymerization etc.), the material making above-mentioned polyamide plasticizer etc. carry out softening and these mixture.Wherein, in fatty polyamide and aromatic polyamide, preferred fat polyamide (nylon system resin).
As the material being suitable as trocar sheath 32, from the view point of processability, such as, can enumerate " PEBAX " (registered trade mark of ARKEMA company).In addition, the Shore D hardness of outboard tube 32 is such as in the scope of 55 ~ 72.But the Shore D hardness of trocar sheath 32 is not limited to this.
As shown in Figure 2, the inner chamber of heart yearn 33 inner chamber and trocar sheath 32 of crossing over above-mentioned hypotube 31 is inserted.Heart yearn 33 is fixed in hypotube 31 at starting point adjacency section 31a1.This heart yearn 33 is to realize preventing the nonhomogeneous hardness because of hypotube 31 and trocar sheath 32 and the kinking (bending) caused, improving the objects such as workability when foley's tube 10 being pushed Ink vessel transfusing along guide line and arrange.
In addition, for the material of heart yearn 33, as long as metal, but from processability or live body safety, such as, be preferably stainless steel alloy, cobalt-chromium alloy, the Ni-Ti alloy headed by SUS304.
Further, as shown in Figure 4, in the front of heart yearn 33, taper portion 331 is formed with in the mode that diameter attenuates along with trend front end.As the diameter in the taper portion 331 of heart yearn 33, such as, can be formed as the most forward side and be 0.05mm, be 0.2mm by base end side.In addition, the diameter of heart yearn 35 is not limited to this numerical value, can get various value.
< is about the fixing > between hypotube 31 and heart yearn 33
Then, below fixing (forming the cirrhosis portion 50 shown in Fig. 3) between hypotube 31 and heart yearn 33 is described.
In the present embodiment, fixing between hypotube 31 and heart yearn 33 realizes by welding.As this welding process, such as, can enumerate laser welding, electron beam welding etc., but laser welding is most preferred.But, the welding process except above-mentioned welding also can be utilized to realize heart yearn 33 fixing relative to hypotube 31, such as, bonding agent also can be used to realize.
As above-mentioned laser welding, such as, can use and adopt the laser welding of carbon dioxide laser, adopt the laser welding of YAG laser, adopt the laser welding of semiconductor laser, adopt the laser welding of excimer laser, adopt the laser welding of the laser instrument of other kinds.
When carrying out laser welding, first make the contact internal walls of the position of carrying out welding in heart yearn 33 and hypotube 31.This contact such as uses fixture or realizes by making hypotube 31 bending etc.After realizing this contact condition, from the outside of hypotube 31 to the position irradiating laser that should carry out welding hypotube 31.Thus, between hypotube 31 and heart yearn 33, form cirrhosis portion 50 as shown in Figure 3.When heart yearn 33 being fixed on hypotube 31 by laser welding, then this cirrhosis portion 50 is cooled by heart yearn 33 and hypotube 31 melting and is formed.As shown in Figure 3, the multiple somes places of more than 2 that preferred heart yearn 33 and hypotube 31 are left in the longitudinal direction are fixed.Thus, heart yearn 33 improves relative to the installation strength of hypotube 31.
After to carry out between heart yearn 33 and hypotube 31 as above fixing, trocar sheath 32 is engaged in hypotube 31.Before this joint, starting point adjacency section 31a1 is in the state covered by trocar sheath 32, but is comparing the position of this starting point adjacency section 31a1 by base end side, and trocar sheath 32 and hypotube are engaged.
Further, cirrhosis portion 50 is comparing the position of the forward side of junction 32a between trocar sheath 32 and hypotube 31.Thereby, it is possible to prevent the junction 32a between trocar sheath 32 and hypotube 31 overlapping in the longitudinal direction with cirrhosis portion 50 thus the position of this overlap is hardening.
As shown in Figure 1, sacculus 40 is connected to the front of trocar sheath 32.The inside of this sacculus 40 and the inner space of trocar sheath 32.Therefore, it is possible to via the inner chamber of connecting pipeline 21, hypotube 31 and the inner chamber of trocar sheath 32 towards the inside feed fluid (fluid) of sacculus 40, sacculus 40 can be made to expand into balloon-like by this supply.Sacculus 40 such as expand into cylindrical shape, thus the narrow positions of blood vessel can be made to expand.
< is about effect >
In the present embodiment, the starting point adjacency section 31a1 that heart yearn 33 be not formed with helicla flute 311 is fixed in hypotube 31.Therefore, cirrhosis portion 50 can not be covered in helicla flute 311, and the gap width of helicla flute 311 can not be hindered to expand, reduce.Thus, hypotube 31 can not be hardening, can keep flexibility well, result, and the operability of foley's tube 10 can be made good.
Further, when as in the present embodiment when along with trend front end, the separation of helicla flute 311 narrows breach forming portion 31b gradually, the hardness of breach forming portion 31b limbers up gradually along with trend front end.Further, owing to there is taper portion 331 at heart yearn 33, therefore heart yearn 33 is also along with from cardinal extremity trend front end, hardness limbers up gradually.Thus, in this case, can make it to possess along with from above-mentioned cirrhosis portion 50 before the front of heart yearn 33 and then the characteristic of excellence that limbers up gradually of foley's tube 10.
Further, in the present embodiment, the cardinal extremity of heart yearn 33 is positioned at starting point adjacency section 31a.Therefore, it is possible to shorten as far as possible heart yearn 33 size, can reduce heart yearn 33 occupy the inner chamber of hypotube 31 position, the inner space that liquid circulates can be guaranteed.As a result, can shorten sacculus 40 is expanded, shrink required for time.
In addition, cirrhosis portion 50 is comparing the position of the forward side of junction 32a between hypotube 31 and trocar sheath 32.Thereby, it is possible to prevent that above-mentioned junction 32a and cirrhosis portion 50 are overlapping in the longitudinal direction and the part of this overlap is hardening.As a result, with overlapping in the longitudinal direction and carry out can reducing hardness compared with situation about engaging, can prevent the operability of foley's tube 10 from worsening.
< is about variation >
Above the foley's tube 10 involved by an embodiment of the invention is illustrated, but the present invention also can carry out various distortion in addition.Carry out this below describing.
In the above-described embodiment, about helicla flute 311, be illustrated along with the situation that spacing narrows gradually from base end side trend front.But helicla flute 311 is not limited to this situation.Such as, also can be formed as: at breach forming portion 31b, along with from base end side trend front, the number of helicla flute 311 periodically increases.Even if when being formed as this structure, the separation being also formed as helicla flute 311 compares in front in the narrow state of base end side, can apply the present invention well.
Further, the helicla flute 311 in above-mentioned embodiment is replaced, such as also can at breach forming portion 31b setting slit 312 as shown in Figure 5.This slit 312 is formed as the shape that width is widened along with the base end side trend front from hypotube 31.Therefore, compared with base end side, front can flexibly be out of shape.Herein, even if in the structure shown in Fig. 5, by being formed as comparing front that base end side is flexibly out of shape and do not arrange the structure in cirrhosis portion 50, the flexibility of maintenance hypotube 31 that can be good, result can make the operability of foley's tube 10 good.
In addition, the breach being formed at breach forming portion 31b is not limited to helicla flute 311 and slit 312.Such as, also not through switch-in part can be formed at breach forming portion 31b.In this case, the ratio of the breach forming portion 31b occupied by preferred switch-in part in the front of breach forming portion 31b than many at the base end side of breach forming portion 31b.
Further, also the hole portion of multiple through this breach forming portion 31b or not through cave portion can be formed with at breach forming portion 31b.In this case, the ratio being also preferably formed to hole portion or the breach forming portion 31b occupied by the portion of cave in the front of breach forming portion 31b than many at the base end side of breach forming portion 31b.
Further, other the slit of through this breach forming portion 31b also can be formed at breach forming portion 31b.In this case, preferably make the number of the slit of the front of breach forming portion 31b more than the number of the slit of the base end side of breach forming portion 31b, or make the spacing of the slit of the base end side of the gap ratio breach forming portion 31b of the slit of the front of breach forming portion 31b narrow.In addition, other slit described herein can be the slit of elongated hole-shape, can be the slit of the length direction along hypotube 31, can be the slit along direction orthogonal to the longitudinal direction, also can be their combination.Further, also can by above-mentioned helicla flute 311, slit 312, hole portion, cave portion, other slit is appropriately combined and be formed at breach forming portion 31b.
Further, in the above-described embodiment, the structure that cirrhosis portion 50 is positioned at the position of the forward side of junction 32a comparing hypotube 31 and trocar sheath 32 is formed as.But, also can be formed as that cirrhosis portion 50 is positioned at and compare the structure of junction 32a by the position of base end side of hypotube 31 and trocar sheath 32.In this case, in the inner chamber of hypotube 31, heart yearn 33 is elongated, and therefore, although the inner space that the liquid in the inner chamber of hypotube 31 circulates is reduced, hypotube 31 is not hardening, can keep flexibility well.
In addition, foley's tube 10 of the present invention also can have the inside tube of inserting for guide line.This inside tube is crossed over the inner chamber of trocar sheath 32 and the inner chamber of sacculus 40 and inserts, and has peri position peristome at the peristome being formed at trocar sheath 32, also has amphi position peristome by the position of amphi position side in the front end comparing sacculus 40.
Description of reference numerals:
10: foley's tube; 20: conductor housing; 21: connecting pipeline; 30: axle main part; 31: hypotube; 31a: tube body; 31a1: starting point adjacency section; 31b: breach forming portion; 32: trocar sheath; 32a: junction; 33: heart yearn; 40: sacculus; 50: cirrhosis portion; 311: helicla flute; 312: slit; 331: taper portion.
Claims (3)
1. a foley's tube, is provided with sacculus in front, it is characterized in that,
Described foley's tube possesses:
Hypotube, this hypotube has formation breach forming portion jaggy in front;
Trocar sheath, what the base end part of this trocar sheath was bonded on described hypotube compares the position of described breach forming portion by base end side, and extends from this position towards front; And
Heart yearn, the cardinal extremity of this heart yearn is only fixed in the adjacent starting point adjacency section not forming breach of the cardinal extremity of base end side and described breach forming portion, and is inserted through described hypotube and described trocar sheath from this position towards front,
Described starting point adjacency section is in the position comparing forward side, the junction between described hypotube and described trocar sheath.
2. foley's tube according to claim 1, is characterized in that,
Described heart yearn relative to the fixed position of described hypotube in the position comparing forward side, the junction between described hypotube and described trocar sheath.
3. foley's tube according to claim 1 and 2, is characterized in that,
Described breach is helicla flute, and described spiral fluted separation narrows gradually along with from base end side trend front.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-260221 | 2011-11-29 | ||
| JP2011260221A JP5580279B2 (en) | 2011-11-29 | 2011-11-29 | Balloon catheter |
| PCT/JP2012/075322 WO2013080645A1 (en) | 2011-11-29 | 2012-10-01 | Balloon catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103889496A CN103889496A (en) | 2014-06-25 |
| CN103889496B true CN103889496B (en) | 2015-08-19 |
Family
ID=48535120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280053115.6A Active CN103889496B (en) | 2011-11-29 | 2012-10-01 | Foley's tube |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5580279B2 (en) |
| CN (1) | CN103889496B (en) |
| WO (1) | WO2013080645A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6304713B2 (en) * | 2015-03-10 | 2018-04-04 | 朝日インテック株式会社 | Balloon catheter |
| CN106823108B (en) * | 2015-12-04 | 2023-06-06 | 易生科技(北京)有限公司 | Hypotube |
| KR102520161B1 (en) * | 2016-12-16 | 2023-04-07 | 씨. 알. 바드, 인크. | Balloon catheter and its method |
| JP7467637B2 (en) | 2020-07-16 | 2024-04-15 | 朝日インテック株式会社 | catheter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008237844A (en) * | 2007-03-29 | 2008-10-09 | Goodman Co Ltd | Balloon catheter and manufacturing method thereof |
| CN101422637A (en) * | 2007-10-05 | 2009-05-06 | 朝日印帝克股份有限公司 | A balloon catheter |
| JP2010201027A (en) * | 2009-03-04 | 2010-09-16 | Goodman Co Ltd | Medical shaft and medical instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7294124B2 (en) * | 2001-12-28 | 2007-11-13 | Boston Scientific Scimed, Inc. | Hypotube with improved strain relief |
-
2011
- 2011-11-29 JP JP2011260221A patent/JP5580279B2/en active Active
-
2012
- 2012-10-01 WO PCT/JP2012/075322 patent/WO2013080645A1/en active Application Filing
- 2012-10-01 CN CN201280053115.6A patent/CN103889496B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008237844A (en) * | 2007-03-29 | 2008-10-09 | Goodman Co Ltd | Balloon catheter and manufacturing method thereof |
| CN101422637A (en) * | 2007-10-05 | 2009-05-06 | 朝日印帝克股份有限公司 | A balloon catheter |
| JP2010201027A (en) * | 2009-03-04 | 2010-09-16 | Goodman Co Ltd | Medical shaft and medical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5580279B2 (en) | 2014-08-27 |
| CN103889496A (en) | 2014-06-25 |
| JP2013111264A (en) | 2013-06-10 |
| WO2013080645A1 (en) | 2013-06-06 |
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