CN107432980A - The foley's tube of flexible joint is provided between a kind of head end and sacculus - Google Patents
The foley's tube of flexible joint is provided between a kind of head end and sacculus Download PDFInfo
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- CN107432980A CN107432980A CN201610352255.3A CN201610352255A CN107432980A CN 107432980 A CN107432980 A CN 107432980A CN 201610352255 A CN201610352255 A CN 201610352255A CN 107432980 A CN107432980 A CN 107432980A
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- head end
- flexible joint
- sacculus
- tube
- inner tube
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- 210000004204 blood vessel Anatomy 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 26
- 230000007704 transition Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 abstract description 9
- 230000010339 dilation Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 14
- -1 polyethylene Polymers 0.000 description 10
- 239000004677 Nylon Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 238000013146 percutaneous coronary intervention Methods 0.000 description 4
- 210000004351 coronary vessel Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 206010011086 Coronary artery occlusion Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000002399 angioplasty Methods 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 206010011091 Coronary artery thrombosis Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008081 blood perfusion Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 208000002528 coronary thrombosis Diseases 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/958—Inflatable balloons for placing stents or stent-grafts
-
- 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
- A61M25/10—Balloon catheters
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
-
- 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
- A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Child & Adolescent Psychology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention relates to technical field of medical instruments, the foley's tube of flexible joint is provided between specifically a kind of head end and sacculus, including inner tube, outer tube, sacculus and head end, inner tube is arranged in outer tube, seal wire in inner tube by passing through, sacculus is sheathed on the distal end of inner tube, and one end of the sacculus is connected with the outer tube, the other end is connected with said inner tube, flexible joint is provided with rear side of the head end, the distal end of said inner tube is connected after stretching out sacculus with the flexible joint, and shape of blood vessel bending is complied with after the flexible joint intravasation.The present invention will not be influenceed by support mesh or rack beams in dilation procedure after being carried out to support, be easy to rear process of expansion to be smoothed out, reduce the generation of risk.
Description
Technical field
The present invention relates to technical field of medical instruments, between specifically a kind of head end and sacculus
Foley's tube provided with flexible joint.
Background technology
Percutaneous coronary intervention (pci) (Percutaneous Coronary Intervention,
PCI), refer to that Transcatheter technology dredges narrow or even inaccessible coronary artery tube chamber, so as to change
The treatment method of the blood perfusion of mercy flesh.The treatment method have short treating period, wound it is small, treat
Imitate the advantages that notable, quickly grow in recent years.According to the difference for implementing technology, PCI can divide
For percutaneous coronary blood vessel Transluminal Angioplasty (PTCA), coronary artery stent implantation, coronal
Artery turnery art, Cutting balloon angioplasty, coronary thrombosis aspiration etc..
As shown in Fig. 1~2, the head end of the foley's tube of Clinical practice is to be sleeved on inner tube at present
End simultaneously directly offsets short and small coniform with sacculus, and this be designed with pushes away beneficial to foley's tube
The transmission of power, be advantageous to what foley's tube had just been opened by narrow diseased region or seal wire
Chronic coronary artery occlusion position, but the blood vessel that is not weighed for tortuous blood vessel, luminal stenosis and
Implantation support and after needing for the blood vessel expanded, when foley's tube head end by when because head
End is flexible poor, it is difficult to which blood vessel may be propped up along the curved shape deflecting of blood vessel, head end in time
Or support, cause to damage.Because coronary artery is mostly bending, therefore for this area
Technical staff for, how to design a kind of foley's tube, make it by bending diseased region
Or can be in time along blood vessel bending deflecting during dilation procedure after being carried out to support, being passed to property
Do not influenceed by vascular bending or rack beams, in order to which rear process of expansion is smoothed out and is reduced
The problem of generation of risk is in the urgent need to address.
In addition, as shown in Fig. 1~2, foley's tube head end of the prior art is tiny
It is coniform, although this design is advantageous to foley's tube by narrow diseased region, or lead
The Chronic coronary artery occlusion that silk has just been opened, but for rear expansion of balloon catheter, due to it
It is mainly used in expanding to inserting after endovascular support is carried out, so that support fully opens and is close to
Blood vessel medial surface, if by the header terminal design of rear expansion of balloon catheter into predilation foley's tube
Consistent is coniform, as shown in Fig. 2 a less planar end surface is had in conduit head end front end,
When foley's tube is sent into support along seal wire, the planar end surface of the conduit head end front end is often
Rack beams are withstood, cause foley's tube to cause deformation of timbering by difficulty, severe patient,
Trigger thrombus, therefore the head end structure of foley's tube is also required to make improvements, so that it is right
After support is carried out during dilation procedure, it will not be influenceed by property by rack beams.
The content of the invention
It is an object of the invention to provide flexible joint is provided between a kind of head end and sacculus
Foley's tube, can be in time along blood vessel bending deflecting, will not be by support mesh or rack beams
Influence, be easy to rear process of expansion to be smoothed out, reduce the generation of risk.
The purpose of the present invention is achieved through the following technical solutions：
It is provided with the foley's tube of flexible joint between a kind of head end and sacculus, including it is inner tube, outer
Pipe, sacculus and head end, inner tube are arranged in outer tube, and by being passed through in inner tube, sacculus is arranged seal wire
In the distal end of inner tube, and one end of the sacculus is connected with the outer tube, the other end with it is described interior
Pipe is connected, and is provided with flexible joint on rear side of the head end, after the distal end stretching sacculus of said inner tube
It is connected with the flexible joint, it is curved to comply with shape of blood vessel after the flexible joint intravasation
It is bent.
The head end is tapered, and the external diameter of the flexible joint is greater than, equal to or less than institute
State the maximum outside diameter of head end.
Be provided with lug boss on front side of the head end, the lug boss maximum outside diameter more than the head end its
The external diameter of remaining part point, and by described convex between the inner side hole wall and lateral wall on front side of the head end
Portion's transition and linkage is played, the lug boss outer surface is shiny surface, or the lug boss and head end
Hole wall connected side in inner side is in inclined face on rear side of head-end.
It is provided with front side of the head end on different lug bosses, or the outer surface of the head end front end
Only some sets lug boss.
Be provided with connecting rod on rear side of the lug boss of the head end, the head end by the connecting rod and
The flexible joint is connected.
Be provided with a gradually narrowed transition face on front side of the head end, the head end exit it is interior
It is connected between side opening wall and lateral wall by the transition face, the transition face is shiny surface, or
Transition face described in person is with the side that hole wall on the inside of head end is connected in inclined face on rear side of head-end.
The end of the sacculus is provided with connecting tube, and the sacculus is by the connecting pipe box loaded on interior
Guan Shang, the diameter of the flexible joint and head end are all higher than the connection pipe diameter of the sacculus.
It is arranged to taper or inclined-plane on rear side of the head end；The original shape of the flexible joint
Shape of blood vessel bending is further complied with bending, and after the flexible joint intravasation.
The radial section of the head end is rounded or polygon, the radial direction of the flexible joint are cut
Face is rounded or polygon.
The flexible joint and head end are Split type structure, or are structure as a whole.
Advantages of the present invention is with good effect：
1st, the present invention is provided with flexible joint between head end and sacculus, and head end can be made timely
Along blood vessel bending deflecting, being passed to performance will not be by vascular bending or the shadow of rack beams
Ring.
2nd, head end of the invention is provided with lug boss or transition face, so as to be not present on front side of head end
Planar end surface, foley's tube will not be hindered when being in contact with intravascular stent by rack beams, can
Smoothly slip over rack beams.
Brief description of the drawings
Fig. 1 is foley's tube distal structure schematic diagram of the prior art,
Fig. 2 is enlarged drawing at the A in Fig. 1,
Fig. 3 is the structural representation of embodiments of the invention one,
Fig. 4 is enlarged drawing at B in Fig. 3,
Fig. 5 is enlarged drawing at C in Fig. 3,
Fig. 6 is enlarged drawing at D in Fig. 3,
Fig. 7 is enlarged drawing at E in Fig. 3,
Fig. 8 is the distal structure schematic diagram of embodiments of the invention two,
Fig. 9 is the distal structure schematic diagram of embodiments of the invention three,
Figure 10 is the distal structure schematic diagram of embodiments of the invention four,
Figure 11 is the distal structure schematic diagram of embodiments of the invention five,
Figure 12 is the distal structure schematic diagram of embodiments of the invention six,
Figure 13 is the distal structure schematic diagram of embodiments of the invention seven,
Figure 14 is the distal structure schematic diagram of embodiments of the invention eight,
Figure 15 is the distal structure schematic diagram of embodiments of the invention nine,
Figure 16 be the present invention be by schematic diagram during seal wire (OTW) type foley's tube,
Figure 17 is a kind of structural representation when head end is provided with lug boss,
Figure 18 is another structural representation when head end is provided with lug boss,
Figure 19 is another structural representation when head end is provided with lug boss,
Figure 20 is axial view when head end is provided with lug boss,
Figure 21 is a kind of structural representation when head end is provided with asymmetric lug boss,
Figure 22 is another structural representation when head end is provided with asymmetric lug boss,
Figure 23 is axial view when head end is provided with asymmetric lug boss,
Figure 24 is a kind of structural representation when head end is provided only with part lug boss,
Figure 25 is another structural representation when head end is provided only with part lug boss,
Figure 26 is the schematic diagram when axial cross sectional edge of head end lug boss is in polygon,
Figure 27 is the schematic diagram when radial section of head end lug boss is in polygon,
Figure 28 is a kind of structural representation when head end wall thickness thickeies,
Figure 29 is another structural representation when head end wall thickness thickeies,
Figure 30 is axial view when head end wall thickness thickeies,
Figure 31 is another structural representation when head end wall thickness thickeies,
Figure 32 is the head end axial view in Figure 31,
Figure 33 is that head end wall thickness thickeies a kind of structural representation that rear side simultaneously is provided with the conical surface,
Figure 34 is that head end wall thickness thickeies another structural representation that rear side simultaneously is provided with the conical surface,
Figure 35 is that head end wall thickness thickeies another structural representation that rear side simultaneously is provided with the conical surface,
Figure 36 is schematic diagram when axial cross sectional edge is in polygon when head end wall thickness thickeies,
Figure 37 is schematic diagram when radial section is in polygon when head end wall thickness thickeies.
Wherein, 1 is inner tube, and 11 be head end, and 111 be connecting rod, and 12 be guide wire exit openings, 13
It is outer tube for developing ring, 2,3 be sacculus, and 31 be fluid-through chamber, and 32 be connecting tube, and 4 be soft
Property connecting portion, 41 be intermediate incline, and 5 be joint, and 6 be conduit, and 7 be strain relief pipe, 8
For planar end surface.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 3 to figure 7, the present invention include inner tube 1, outer tube 2, sacculus 3, joint 5,
Conduit 6 and strain relief pipe 7, wherein inner tube 1 are arranged in outer tube 2, are passed through inside inner tube 1
Pass to and passed through for seal wire, as shown in Fig. 3, Fig. 5 and Fig. 7, sacculus 3 is sheathed on inner tube 1
Distally (the i.e. one end away from operating personnel, namely free end in the distal end), and the sacculus
3 one end is connected with the outer tube 2, and the other end is connected with said inner tube 1, the sacculus 3
Interior is fluid-through chamber 31, as shown in figs. 34, one section of inner tube 1 being arranged in the sacculus 3
Outside is provided with multiple developing rings 13, and the position of developing ring 13 can be shown by corresponding instrument,
So as to help operating personnel to understand the position of sacculus, as shown in fig. 6, in the near-end (institute of outer tube 2
Near-end is stated i.e. close to one end of operating personnel) in be provided with conduit 6, and the conduit 6 is arranged at
The outside of inner tube 1, as shown in figure 3, the near-end of the conduit 6 is connected with joint 5, described
Joint 5 is provided with strain relief pipe 7, and the spiral-lock of strain relief pipe 7 is in the joint 5
Distal end, the strain relief pipe 7 be used for avoid stress concentration, to improve making for foley's tube
Use the life-span.
The sacculus 3 uses pressurized, heated blow molding, is 0.3~1.5mm by internal diameter, outer
The nylon pipe that footpath is 0.6~2.0mm, length is 400~600mm, pressure be 300~
600PSI, blow under conditions of 160~220 degrees Celsius, obtain a diameter of 2.0~5.0mm,
A length of 5.0~30.0mm cylinder is the main body of sacculus 3, as shown in figure 5 and figure 7, in institute
State the both ends of sacculus 3 and be respectively arranged with connecting tube 32, the external diameter of the connecting tube 32 for 0.60~
1.02mm, length are 1.0~10.0mm, and sacculus 3 is covered respectively by the connecting tube 32 at both ends
Loaded in said inner tube 1 and outer tube 2, it is connected so as to realize with inner tube 1 and outer tube 2, sacculus
Fluid-through chamber 31, the energy after developer solution is passed through of fluid-through chamber 31 are formed between 3 and inner tube 1
Enough swell, so as to which support be strutted.
The outer tube 2 is being squeezed using nylon, polyethylene, polypropylene or block polyamide material
Go out 200~280 degrees Celsius of temperature, extruded under conditions of 15~40 degrees Celsius of chilling temperature a length of
The tubing that 250~1600mm, external diameter are 0.76~0.86mm, thickness is 0.04~0.14mm
Obtain the outer tube 2.
Said inner tube 1 is and outer using nylon, polyethylene, polypropylene or block polyamide material
Pipe 2 is made under the same conditions, and length is 250~1600mm, and external diameter is 0.50~
0.61mm。
As shown in fig. 7, the distal end of said inner tube 1 passes through flexible joint 4 after stretching out sacculus 3
It is connected with head end 11, when foley's tube enters curved blood vessel, the flexible joint 4 exists
Blood vessel curve-shaped bend can be complied with external force effect, so as to effectively avoid head end 11 from withstanding rack beams,
Ensure conduit by the way that the flexible joint 4 is using nylon, polyethylene, polypropylene or block
Polyamide material is made.
The flexible joint 4 may be designed to Split type structure with head end 11, can also be designed to
Integrative-structure.When flexible joint 4 and head end 11 are Split type structure, the flexible connection
Portion 4 can use nylon, polyethylene, polypropylene, block polyamide or polyurethane material and pass through
Extrusion way is molded, and in 200~280 degrees Celsius of extrusion temperature, chilling temperature 15~40 is Celsius
Extruding pipe material under conditions of degree, long 0~20mm, external diameter be 0.50~2mm, thickness for 0.07~
0.82mm.When flexible joint 4 and head end 11 are structure as a whole, the flexible joint
4 and head end 11 using nylon, polyethylene, polypropylene, block polyamide or polyurethane material,
And utilize the method being molded injection moulding integrated molding in the mould of respective shapes.
The head end 11 may be designed to taper as needed, in addition as shown in Fig. 1~2, if
Rear expansion of balloon catheter is also designed to taper, due to the front end of head end 11 have one it is less
Planar end surface 8, when foley's tube is sent into support along seal wire, the planar end surface 8 often pushes up
Firmly rack beams and make conduit can not be by order to solve this problem, the structure of head end 11
It need to make improvements.
Embodiment 1
As shown in figure 3, the present embodiment is rapid-exchange version foley's tube, portion is provided with the catheter
Guide wire exit openings 12.
As shown in fig. 7, tapered head end 11 is used in the present embodiment, and the head end 11
It is Split type structure with flexible joint 4.Described one end of flexible joint 4 is sleeved in inner tube 1,
The other end of the flexible joint 4 is coordinated by seam to be connected with the rear side of the head end 11,
The diameter of the flexible joint 4 is identical while described with the diameter of connecting tube 32 of sacculus 3
The diameter of flexible joint 4 is also identical with the maximum gauge of the male cone (strobilus masculinus) of head end 11.Work as ball
When ductus bursae enters curved blood vessel, the flexible joint 4 is also easy to produce under external force to be complied with
The bending of blood vessel bending, so as to ensure that conduit passes through.
Embodiment 2
As shown in figure 8, the present embodiment difference from Example 1 be the head end 11 with
Flexible joint 4 is formed in one structure, described soft when foley's tube enters curved blood vessel
Property connecting portion 4 and head end 11 are also easy to produce the bending for complying with blood vessel bending under external force,
So as to ensure that conduit passes through.
Embodiment 3
As shown in figure 9, the present embodiment difference from Example 1 is outside the head end 11
The maximum outside diameter of the conical surface is less than the diameter of the flexible joint 4, and in the flexible connection
One end that portion 4 is connected with head end 11 is provided with intermediate incline 41, the flexible joint 4 it is straight
Footpath is identical with the diameter of connecting tube 32 of sacculus 3.
Embodiment 4
As shown in Figure 10, the present embodiment difference from Example 1 is outside the head end 11
The maximum gauge of the conical surface is more than the diameter of the flexible joint 4, the flexible joint 4
Diameter is identical with the diameter of connecting tube 32 of sacculus 3.
Embodiment 5
As shown in figure 3, the present embodiment is rapid-exchange version foley's tube, portion is provided with the catheter
Guide wire exit openings 12.
As shown in figure 11, the present embodiment uses the head end 11 provided with lug boss, and the head end
11 and flexible joint 4 are Split type structure.The head end 11 includes the lug boss of front side with after
The connecting rod 111 of side, described one end of flexible joint 4 are sleeved in inner tube 1, and the other end leads to
Crossing seam coordinates the connecting rod 111 with the rear side of head end 11 to be connected, the flexible joint
The connecting rod 111 of 4 diameter, the diameter of connecting tube 32 of the sacculus 3 and the head end 11
Diameter all same, the lug boss maximum outside diameter of the front side of head end 11 are more than the flexible connection
The diameter in portion 4 and the diameter of the other parts of head end 11, and the lug boss of the head end 11
Maximum height be more than the distance of support and blood vessel so that conduit smoothly slips over rack beams.
As shown in figure 11, the lug boss is arranged at the front side of head end 11, and the head end 11
Transition, the lug boss are connected by the lug boss between the inner side hole wall and lateral wall of front side
Outer surface could be arranged to shiny surface, and the planar end surface 8 for propping up rack beams is so just not present, from
And conduit is smoothly slipped over rack beams, or as shown in figure 26, the lug boss appearance bread
Include multiple planes, the angle between two planes of arbitrary neighborhood is obtuse angle, is so just formed near
Like the shape of cambered surface, and lug boss outer surface and the plane that the inner side hole wall of head end 11 is connected to
The rear side of head end 11 tilts, and the planar end surface 8 that can prop up rack beams is so just not present, also may be used
Support beam action smoothly is slipped over to play, plus the flexible joint 4 under external force
The bending for complying with blood vessel bending is also easy to produce, so as to be further ensured that conduit passes through.Such as figure
Shown in 19, because seal wire is passed through by the endoporus of head end 11, on the inside of the outlet of the head end 11
Can be arranged to flip to the outside and with the smooth cambered surface being connected of lug boss in the outside of head end 11,
So that the outlet of head end 11 is more smooth when being contacted with seal wire.Also may be used the lug boss outer surface
To be arranged to the structure that shiny surface is connected with plane, as long as front side and the inner hole wall phase of head end 11
Face even does not form the planar end surface 8 that can prop up rack beams.
As shown in Figure 17~20, the lug boss on the head end 11 can be symmetrical structure around institute
State the rotary body that the rotation of the axis of head end 11 forms, namely any axial cross section of the lug boss
It is symmetrical structure, only the outward flange of the lug boss axial cross section is arranged as required into
Lug boss on different radians, or the head end 11 can also be designed to unsymmetric form,
For example shown in Figure 21~23, the both sides of head end 11 are respectively equipped with different convex of outer surface radian
The portion of rising, or as shown in Figure 24~25, on the front side outer surface of head end 11 some
Lug boss is set, remainder is the conical surface that taper points to the front side of head end 11, or to head
The inclined inclined-plane in the inner side of end 11, head end 11 and flexible joint 4 radial section can be set
Circle is counted into, or as shown in figure 27, is looked along the axial direction of the head end 11, the head
End 11 and the radial section of flexible joint 4 can also be designed to be in approximate circle polygon.
Embodiment 6
As shown in figure 12, the present embodiment and the difference of embodiment 5 are：The head end
11 eliminate connecting rod 111 in a tubular form, and the lug boss of head end 11 directly connects with the flexibility
Socket part 4 is connected.
Embodiment 7
As shown in figure 13, the present embodiment and the difference of embodiment 5 are：The head end
11 are structure as a whole with flexible joint 4, described when foley's tube enters curved blood vessel
Flexible joint 4 and head end 11 are also easy to produce under external force complies with the curved of blood vessel bending
Song, so as to ensure that conduit passes through.
Embodiment 8
As shown in figure 3, the present embodiment is the foley's tube of rapid-exchange version, portion is set in the catheter
There are guide wire exit openings 12.
As shown in figure 14, the head end 11 thickeied in the present embodiment using wall thickness, and the head end
11 and flexible joint 4 are Split type structure.Described one end of flexible joint 4 is sleeved on inner tube 1
On, the other end is coordinated by seam and is connected with the rear side of head end 11, the flexible joint
4 diameter is identical with the diameter of the head end 11, and is all higher than the connection of the sacculus 3
The diameter of pipe 32, and the wall thickness of the head end 11 is more than the distance of support and blood vessel, with
Conduit is set smoothly to slip over rack beams.
A gradually narrowed transition face is provided with the front side of the head end 11, before the head end 11
It is connected between the inner side hole wall and lateral wall of side by the transition face, as shown in figure 14, institute
It can be the shiny surface being directly connected with the inner hole wall of head end 11 to state transition face, just do not deposited so
The planar end surface 8 of rack beams can be being propped up, conduit can smoothly slip over rack beams, or such as Figure 36
Shown, the transition face includes multiple planes, and the angle between the plane of arbitrary neighborhood two is obtuse angle,
So just form the shape of approximate cambered surface, and with the plane that the inner side hole wall of head end 11 is connected to
The rear side of head end 11 tilts, and the planar end surface 8 that can prop up rack beams is so just not present, also may be used
Support beam action smoothly is slipped over to play, plus the flexible joint 4 under external force
The bending for complying with blood vessel bending is also easy to produce, so as to be further ensured that conduit passes through.The mistake
The face of crossing can also be arranged to the structure that shiny surface is connected with plane, as long as front side and head end 11
The connected face of inner hole wall does not form the planar end surface 8 that can prop up rack beams.
As shown in Figure 14 and Figure 28, the shiny surface of the front side of head end 11 is arranged at head end 11
Outside and the different shiny surface of radian can be arranged to according to being actually needed.As shown in figure 29,
Because seal wire is passed through by the endoporus of head end 11, can also be arranged on the inside of the outlet of the head end 11
Flip to the outside and with the smooth cambered surface being connected of transition face in the outside of head end 11 so that head end
11 outlets are more smooth when being contacted with seal wire.As shown in figure 30, the head end 11 can be
The rotary body that symmetrical structure forms around the axis of head end 11 rotation, i.e., along the head end 11
Axial direction look, the radial section of the head end 11 is rounded, or as shown in figure 37, edge
The axial direction for the head end 11 is looked, head end 11 and flexible joint 4 radial section
It can be designed to be in approximate circle polygon.As shown in Figure 31~32, before the head end 11
Some is arranged to transition face to side external surface, and remainder is arranged to the conical surface or inclined-plane, such as
Shown in Figure 33~35, the rear side of the head end 11 can be further designed to taper and point to head end
The taper or inclined-plane of 11 rear sides.
Embodiment 9
As shown in figure 16, the present embodiment is to be connect by seal wire (OTW) type foley's tube, seal wire
Mouth 12 is arranged on joint 5.
As shown in figure 15, the head end 11 in the present embodiment and flexible joint 4 are Split type structure,
And the original shape of the flexible joint 4 is in bending, the one end of flexible joint 4 set
In inner tube 1, the other end is coordinated by seam and is connected with the head end 11, when sacculus is led
When pipe enters curved blood vessel, the flexible joint 4 can further comply with blood under external force
The bending of pipe bending, so as to ensure that conduit passes through.
The flexible joint 4 can be in smooth bowing, can also be in horn shape bending.
The flexible joint 4 may be designed to Split type structure with head end 11, can also be designed to
Integrative-structure, the head end 11 can also use the structure in other embodiment.
Claims (10)
1. the foley's tube of flexible joint is provided between a kind of head end and sacculus, including inner tube,
Outer tube, sacculus and head end, inner tube are arranged in outer tube, and seal wire in inner tube by passing through, sacculus set
Located at the distal end of inner tube, and one end of the sacculus is connected with the outer tube, the other end with it is described
Inner tube is connected, it is characterised in that：Flexible joint (4) is provided with rear side of the head end (11),
The distal end of said inner tube (1) is stretched out sacculus (3) and is connected afterwards with the flexible joint (4),
Shape of blood vessel bending is complied with after flexible joint (4) intravasation.
2. the ball of flexible joint is provided between head end according to claim 1 and sacculus
Ductus bursae, it is characterised in that：The head end (11) is tapered, and the flexible joint (4)
External diameter greater than, equal to or less than the head end (11) maximum outside diameter.
3. the ball of flexible joint is provided between head end according to claim 1 and sacculus
Ductus bursae, it is characterised in that：Lug boss, the lug boss are provided with front side of the head end (11)
Maximum outside diameter is more than the external diameter of the head end (11) remainder, and the head end (11) goes out
Pass through the lug boss transition and linkage, the lug boss between inner side hole wall and lateral wall at mouthful
Outer surface is shiny surface, or the side that the lug boss is connected with hole wall on the inside of head end (11)
In inclined face on rear side of head-end (11).
4. the ball of flexible joint is provided between head end according to claim 3 and sacculus
Ductus bursae, it is characterised in that：Different lug bosses is provided with front side of the head end (11), or
Only some sets lug boss on the outer surface of head end (11) front end.
5. the ball of flexible joint is provided between head end according to claim 3 and sacculus
Ductus bursae, it is characterised in that：Connecting rod (111) is provided with rear side of the lug boss of the head end (11),
The head end (11) is connected by the connecting rod (111) with the flexible joint (4).
6. the ball of flexible joint is provided between head end according to claim 1 and sacculus
Ductus bursae, it is characterised in that：A transition gradually narrowed is provided with front side of the head end (11)
Face, pass through the transition face between the inner side hole wall and lateral wall in head end (11) exit
Linking, the transition face are hole wall on the inside of shiny surface, or the transition face and head end (11)
Connected side is in inclined face on rear side of head-end (11).
7. the ball of flexible joint is provided between head end according to claim 6 and sacculus
Ductus bursae, it is characterised in that：The end of the sacculus (3) is provided with connecting tube (32), described
Sacculus (3) is set in inner tube (1) by the connecting tube (32), the flexible connection
The connecting tube (32) that the diameter of portion (4) and head end (11) is all higher than the sacculus (3) is straight
Footpath.
8. flexible joint is provided between the head end and sacculus according to claim 1 or 6
Foley's tube, it is characterised in that：It is arranged to taper or inclined-plane on rear side of the head end (11)；
The original shape of the flexible joint (4) is in bending, and the flexible joint (4)
Shape of blood vessel bending is further complied with after intravasation.
9. the ball of flexible joint is provided between head end according to claim 1 and sacculus
Ductus bursae, it is characterised in that：The radial section of the head end (11) is rounded or polygon,
The radial section of the flexible joint (4) is rounded or polygon.
10. the ball of flexible joint is provided between head end according to claim 1 and sacculus
Ductus bursae, it is characterised in that：The flexible joint (4) and head end (11) are split knot
Structure, or be structure as a whole.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352255.3A CN107432980A (en) | 2016-05-25 | 2016-05-25 | The foley's tube of flexible joint is provided between a kind of head end and sacculus |
| JP2017600108U JP3217806U (en) | 2016-05-25 | 2017-01-17 | Balloon catheter with flexible connection between tip and balloon |
| PCT/CN2017/071342 WO2017202042A1 (en) | 2016-05-25 | 2017-01-17 | Balloon catheter provided with flexible connecting part between tip and balloon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352255.3A CN107432980A (en) | 2016-05-25 | 2016-05-25 | The foley's tube of flexible joint is provided between a kind of head end and sacculus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107432980A true CN107432980A (en) | 2017-12-05 |
Family
ID=60411006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352255.3A Pending CN107432980A (en) | 2016-05-25 | 2016-05-25 | The foley's tube of flexible joint is provided between a kind of head end and sacculus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3217806U (en) |
| CN (1) | CN107432980A (en) |
| WO (1) | WO2017202042A1 (en) |
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| CN109908453A (en) * | 2019-03-15 | 2019-06-21 | 兰州大学第一医院 | A kind of auxiliary guiding catheter passes through the device of tortuous blood vessel |
| CN110721392A (en) * | 2019-09-29 | 2020-01-24 | 深圳泰睿仕医疗科技有限公司 | Disposable ureter guide sheath |
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| JP2022545728A (en) | 2019-08-26 | 2022-10-28 | ブイダイン，インコーポレイテッド | Transcatheter prosthetic valves capable of lateral delivery and methods for their delivery and fixation |
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Also Published As
| Publication number | Publication date |
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| JP3217806U (en) | 2018-09-06 |
| WO2017202042A1 (en) | 2017-11-30 |
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Application publication date: 20171205 |