CN107198813A - The preparation method and sacculus dilating catheter of sacculus dilating catheter - Google Patents
The preparation method and sacculus dilating catheter of sacculus dilating catheter Download PDFInfo
- Publication number
- CN107198813A CN107198813A CN201610147302.0A CN201610147302A CN107198813A CN 107198813 A CN107198813 A CN 107198813A CN 201610147302 A CN201610147302 A CN 201610147302A CN 107198813 A CN107198813 A CN 107198813A
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- Prior art keywords
- sacculus
- inner tube
- folded
- outer tube
- folding
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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
- A61M25/10—Balloon catheters
- A61M25/1027—Making of 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
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
- A61M2025/1004—Balloons with folds, e.g. folded or multifolded
Abstract
The invention provides a kind of preparation method of sacculus dilating catheter, in the preparation method of the sacculus dilating catheter, said inner tube and the outer tube or pre-folded sacculus are assembled, and store the moment of torsion produced in assembling process, so that the folding wings of sacculus are in the shape of a spiral.During using sacculus dilating catheter, when pressure release again after balloon expandable, moment of torsion is stored on sacculus, so that the folding wings of sacculus recover helical form, significantly reduces that sacculus is secondary to pass through external diameter value.The whole method for preparing sacculus dilating catheter is simple and easy to apply, and cost is low.
Description
Technical field
The present invention relates to technical field of medical instruments, the preparation method of more particularly to a kind of sacculus dilating catheter and
Sacculus dilating catheter.
Background technology
Percutenous transluminal coro-nary angioplasty (PTCA) is the main method of early treatment angiocardiopathy
One of, it mainly inserts diseased region using the conduit (also referred to as sacculus dilating catheter) with sacculus, and sacculus fills
Gas expands, and by narrow coronary artery expansion, blood is reached cardiac muscle normal through blood vessel, then
By sacculus pressure release to reduced size, coronary vasculature is exited, without carrying out large-scale cardiac operation.
Intervention medical field in, the representational sacculus of most PTCA be widely used in sacculus dilating catheter,
The interventional medical devices such as bracket conveyer, orthopaedics sacculus and medicinal balloon.In order to make above-mentioned apparatus in blood
Pipe or other body cavities in have preferably pass through performance, it will usually to sacculus carry out reduction external diameter value work
Skill processing.
Current existing handling process includes zero and folded and folding technology, and zero folding is only applied to small size at present
Sacculus, and it is universal to carry out folding to sacculus, usual in the market sacculus product on sale passes through mostly
Folding, including both wings, three wings, five wings etc..The method of folding is also various, is had by folding
The machine of folding, also has by distortion by hand, but has either received folding or folding machine folding, the final sacculus wing
The folding trace of piece is all axially in parallel with inner tube/apparatus, therefore the external diameter of the sacculus after folding did not still have
Many reductions.
For above mentioned problem, those skilled in the art begin one's study sacculus fin carrying out helical fold, with aobvious
The external diameter value of the secondary sacculus after pressurising and pressure release that passes through external diameter value, i.e. sacculus of sacculus after reduction is folded is write,
Sacculus is secondary passes through performance for lifting.But the method for existing helical fold sacculus dilating catheter is by that will roll over
The modes such as folded machine repacking reach the effect of sacculus helical fold, but which is complicated and expensive, technological feasibility
It is low.
The content of the invention
It is an object of the invention to provide a kind of preparation method of sacculus dilating catheter and sacculus dilating catheter, with
Solve to use the method for existing helical fold sacculus dilating catheter complex and costliness, technological feasibility is low
The problem of.
In order to solve the above technical problems, the present invention provides a kind of preparation method of sacculus dilating catheter, the ball
The preparation method of capsule dilating catheter includes：
One sacculus is provided；
Folding is carried out to the sacculus and forms pre-folded sacculus；
The near-end of the pre-folded sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into institute
State the tube chamber of outer tube and the body cavity of the pre-folded sacculus, and by the distal end of said inner tube and the pre-folded ball
The distal end of capsule is fixedly connected；
Said inner tube and the outer tube are assembled, the assembling is included first by said inner tube with said inner tube
Axle centered on relative to outer tube rotation, then the near-end of said inner tube is fixedly connected with the outer tube,
The moment of torsion produced with storing in assembling process, makes the folding wings of the pre-folded sacculus in the shape of a spiral；
Carry out moulding process.
Optionally, in the preparation method of described sacculus dilating catheter, by folding machine or by hand to described
Sacculus carries out folding and forms pre-folded sacculus.
Optionally, in the preparation method of described sacculus dilating catheter, the folding machine has multiple foldings
Piece, the end of the multiple pleated sheet is parallel to each other.
Optionally, in the preparation method of described sacculus dilating catheter, the folding wings of the pre-folded sacculus
Outer and the sacculus it is axially in parallel.
Optionally, in the preparation method of described sacculus dilating catheter, said inner tube is with the axle of said inner tube
Centered on rotated relative to the outer tube, the number of turns rotated against be 0.01~20 circle.
Optionally, in the preparation method of described sacculus dilating catheter, the moulding process is that hot pressing is held into
Type technique.
The present invention also provides a kind of preparation method of sacculus dilating catheter, the preparation side of the sacculus dilating catheter
Method includes：
One sacculus is provided；
Folding is carried out to the sacculus and forms pre-folded sacculus；
The near-end of the pre-folded sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into institute
The tube chamber of outer tube and the body cavity of the pre-folded sacculus are stated, and the near-end of said inner tube is fixed with the outer tube
Connection；
Said inner tube and the pre-folded sacculus are assembled, the assembling is included first by said inner tube with institute
State relative to pre-folded sacculus rotation centered on the axle of inner tube, then by the distal end of said inner tube and described pre-
The distal end for folding sacculus is fixedly connected, and to store the moment of torsion produced in assembling process, makes the pre-folded sacculus
Folding wings in the shape of a spiral；
Carry out moulding process.
The present invention also provides a kind of preparation method of sacculus dilating catheter, the preparation side of the sacculus dilating catheter
Method includes：
One sacculus is provided；
The near-end of the sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into the outer tube
Tube chamber and the sacculus body cavity, and the distal end of said inner tube is fixedly connected with the distal end of the sacculus；
Said inner tube and the outer tube are assembled, the assembling is included first by said inner tube with said inner tube
Axle centered on rotated relative to the outer tube, then the near-end of said inner tube and the outer tube fixed connected
Connect, to store the moment of torsion produced in assembling process；
After said inner tube and the outer tube are assembled, the sacculus is folded, in the work of the moment of torsion
Under, the folding wings of the sacculus after folding are in the shape of a spiral；
Carry out moulding process.
Optionally, in the preparation method of described sacculus dilating catheter, by folding machine or by hand to institute
Sacculus is stated to be folded.
Optionally, in the preparation method of described sacculus dilating catheter, the folding machine has multiple foldings
Piece, the end of the multiple pleated sheet is parallel to each other.
Optionally, in the preparation method of described sacculus dilating catheter, each folding of the sacculus after folding
Angle between the outer of the folded wing and the axial direction of the sacculus is impartial.
Optionally, in the preparation method of described sacculus dilating catheter, said inner tube is with the axle of said inner tube
Centered on rotated relative to the outer tube, the number of turns rotated against be 0.01~20 circle.
The present invention also provides a kind of preparation method of sacculus dilating catheter, the preparation side of the sacculus dilating catheter
Method includes：
One sacculus is provided；
The near-end of the sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into the outer tube
Tube chamber and the sacculus body cavity, and the near-end of said inner tube is fixedly connected with the outer tube；
Said inner tube and the sacculus are assembled, the assembling is included first by said inner tube with said inner tube
Axle centered on rotated relative to the sacculus, then by the distal end of said inner tube and the distal end of the sacculus
It is fixedly connected, to store the moment of torsion produced in assembling process；
After said inner tube and the outer tube are assembled, the sacculus is folded, in the work of the moment of torsion
Under, the folding wings of the sacculus after folding are in the shape of a spiral；
Carry out moulding process.
The present invention also provides a kind of sacculus dilating catheter, and the sacculus dilating catheter includes sacculus as described above
The preparation method of dilating catheter is made.
In the preparation method of sacculus dilating catheter provided by the present invention, by said inner tube and the outer tube or
Pre-folded sacculus is assembled, in assembling process first by said inner tube centered on the axle of said inner tube relative to
The outer tube or pre-folded sacculus are rotated, then said inner tube and the outer tube or pre-folded sacculus are fixed
Connection, to store the moment of torsion produced in assembling process, makes the folding wings of sacculus in the shape of a spiral.Expanded using sacculus
When opening conduit, when pressure release again after balloon expandable, moment of torsion is stored on sacculus, so that the folding wings of sacculus are extensive
Multiple helical form, significantly reduces that sacculus is secondary to pass through external diameter value.The whole method letter for preparing sacculus dilating catheter
Single easy, cost is low.
Brief description of the drawings
Fig. 1 is the flow chart of the preparation method of sacculus dilating catheter in the embodiment of the present invention one；
Fig. 1 a are the structural representations of pre-folded sacculus in step S11；
Fig. 1 b are diagrammatic cross-section of the pre-folded sacculus after step S12；
Fig. 1 c are structural representation of the pre-folded sacculus after step S13；
Fig. 1 d are the structural representations of sacculus dilating catheter；
Fig. 2 is the flow chart of the preparation method of sacculus dilating catheter in the embodiment of the present invention two；
Fig. 3 is the partial structural diagram after inner and outer tubes are assembled with fast-swap；
Fig. 4 is the partial structural diagram after inner and outer tubes are assembled with coaxial-type；
Fig. 5 is the flow chart of the preparation method of sacculus dilating catheter in the embodiment of the present invention three；
Fig. 6 is the flow chart of the preparation method of sacculus dilating catheter in the embodiment of the present invention four.
In Fig. 1 a~1d, Fig. 3 and Fig. 4, pre-folded sacculus -1；Outer tube -2；Inner tube -3.
Embodiment
Below in conjunction with the drawings and specific embodiments the preparation method of sacculus dilating catheter proposed by the present invention is made into
One step is described in detail.According to following explanation and claims, advantages and features of the invention will become apparent from.
It should be noted that, accompanying drawing is using very simplified form and uses non-accurately ratio, only to it is convenient,
Lucidly aid in illustrating the purpose of the embodiment of the present invention.
Embodiment one
Fig. 1 and Fig. 1 a-1d are refer to, Fig. 1 is the preparation method of sacculus dilating catheter in one embodiment of the invention
Flow chart, as shown in figure 1, the preparation method of the sacculus dilating catheter comprises the following steps：
First, there is provided a sacculus by execution step S10；
Then, step S11 is performed, carrying out folding to the sacculus forms pre-folded sacculus 1, the pre-folded
The folding wings of sacculus 1 are axially in parallel with the sacculus, and the structure of pre-folded sacculus 1 now refer to figure
1a。
Specifically, it is that the sacculus is folded by folding machine or craft to form pre-folded sacculus 1, this
In folding machine there are multiple pleated sheets, the end of the multiple pleated sheet is parallel to each other, and is specifically as follows city
The commercially available equipment in face, such as 8P3FH (Interface Associates Inc), 5F-S250 (Interface
Associates Inc)、FFS775S(Machine Solution Inc)、FFS1109(Machine Solution
Inc).That is, without right during the spiral sacculus of folding wings in preparing sacculus dilating catheter
Folding machine is improved.
Then, step S12 is performed, the distal end of the near-end of the pre-folded sacculus 1 and an outer tube 2 is fixed and connected
Connect, and an inner tube 3 is sequentially passed through into the tube chamber of the outer tube 2 and the body cavity of the pre-folded sacculus 1 and incited somebody to action
The distal end of said inner tube is fixedly connected with the distal end of the pre-folded sacculus 1.Here, pre-folded sacculus 1 is passed through
Diagrammatic cross-section after step S12 can refer to Fig. 1 b.
Then, step S13 is performed, said inner tube 3 and the outer tube 2 are assembled, the assembling includes
First said inner tube 3 is rotated centered on the axle of said inner tube relative to the outer tube 2, then by said inner tube 3
Near-end be fixedly connected with the outer tube 2, to store the moment of torsion produced in assembling process, make the pre-folded
The folding wings of sacculus 1 are in the shape of a spiral；Specifically, selecting the near-end of said inner tube and the near-end of the outer tube
Or distal end is fixedly connected, due to moment of torsion can be produced when said inner tube 3 is rotated relative to the outer tube 2,
And inner tube 3 is fixedly connected with outer tube 2 and exactly stores the moment of torsion of generation, the folding of pre-folded sacculus 1
The wing is in the presence of the moment of torsion from being changed into helical form with the axially in parallel of the sacculus in step S11.In will be described
The structure that pre-folded sacculus 1 is presented after pipe 3 and the outer tube 2 are assembled refer to Fig. 1 c.
Preferably, the mode that inner tube 3 and outer tube 2 are assembled can be fast-swap or coaxial-type, in detail
Feelings refer to Fig. 3 and Fig. 4, Fig. 3 be inner tube 3 and outer tube 2 assembled with fast-swap after local tie
Structure schematic diagram；Fig. 4 is the partial structural diagram after inner tube 3 and outer tube 2 are assembled with coaxial-type.
For the understanding of important function risen in the present embodiment step S13, details refer to following dynamic
The course of work：
Because sacculus is folded by step S11 in step S10, pre-folded sacculus 1 is formed (as schemed
Shown in 1a), now inner tube 3 is stored in pre-folded sacculus relative to the moment of torsion that the outer tube 2 carries out rotation generation
On 1, the folding wings of pre-folded sacculus 1 are in by axially in parallel be changed into originally with inner tube in the presence of moment of torsion
Helical form, which is returned, embraces together, and is attached in inner tube 3 (as illustrated in figure 1 c), now folding wings in the shape of a spiral
Folding fin number it is consistent with the folding fin number of pre-folded sacculus.
Folding wings be non-helical shape sacculus pressurising after and recover pressure release state when folding wings edge be parallel to ball
The straight line of capsule axial direction, in contrast to this, folding wings are the spiral helicine sacculus (balloon expandable that i.e. prepared by the present invention
The sacculus of conduit) recover folding wings edge helically line during pressure release state.The spiral sacculus 1 of folding wings
The secondary external diameter value passed through of sacculus is reduced, performance is optimized, meets actual demand.When sacculus 1 fills
During pressure, moment of torsion can be transferred in inner tube 3, therefore can be in by the folding wings of sacculus 1 without auxiliary mould
Existing helical form, method is simple, and repeatability is strong.
Further, the anglec of rotation of helical form folding wings and direction of rotation pass through outer tube 2 and the phase of inner tube 3
Rotating cycle and direction of rotation are controlled, said inner tube 3 is rotated relative to the outer tube 2, relative rotation
The number of turns turned is 0.01~20 circle.
Then, step S14 is performed, moulding process is carried out, moulding process is held in use hot pressing preferably.Certainly into
Type technique includes but is not limited to hot pressing and holds moulding process.
Fig. 1 d are refer to, it is the structural representation of the sacculus dilating catheter prepared using the above method.As schemed
Shown in 1d, the folding trace of the sacculus dilating catheter now prepared is twist uneven to be distributed in the flat of sacculus
On straight section, naturally it is also possible to uniform distribution.
Two specific examples are provided for the preparation method described in embodiment one, it is specific as follows：
Example 1：FFS1109 types folding machine is used to carry out 3 wingfold to external diameter for 2.5mm sacculus
1) nominal 2.5mm polyamide sacculus is subjected to the wingfold of sacculus 3 by FFS1109 types folding machine,
Pre-folded sacculus is made；2) balloon proximal of pre-folded and the distal end of outer tube are connected, said inner tube it is remote
End is fixedly connected with the distal end of the pre-folded sacculus；3) inner and outer tubes are assembled, by outer tube and inner tube
1/2 circle for the relative rotation, then by the near-end of outer tube or distally with inner tube proximally by laser welding stationary phase pair
Position；4) shaping is held through hot pressing again.For ease of the assembling of inner and outer tubes, can also inner tube near-end and
The near-end of outer tube increases extension respectively.
Example 2：Manual mode is used to carry out 2 wingfold to external diameter for 1.5mm sacculus
1) nominal 1.5mm polyamide elastomers sacculus is made and pre-folded by carrying out the wingfold of sacculus 2 by hand
Folded sacculus；2) near-end of pre-folded sacculus is connected with outer tube, the distal end of said inner tube and the pre-folded
The distal end of sacculus is fixedly connected；3) inner and outer tubes are assembled, by outer tube and inner tube 2 circle for the relative rotation,
The near-end of outer tube and inner tube are fixed into relative position proximally by laser welding again；4) shaping is held through hot pressing again.
Embodiment two
Fig. 2 is refer to, it is the flow chart of the preparation method of sacculus dilating catheter in another embodiment of the present invention.
The difference of embodiment two and embodiment one is：Both are different to produce the specific order of connection of moment of torsion.Implement
In example one, first the distal end of inner tube is fixedly connected with the distal end of pre-folded sacculus, after inner and outer tubes assembling,
The near-end of inner tube is fixedly connected with outer tube again.And in embodiment two, first consolidate the near-end of inner tube with an outer tube
Fixed connection, after inner tube and the pre-folded sacculus are assembled, then by the distal end of said inner tube and described pre-
The distal end for folding sacculus is fixedly connected.
As shown in Fig. 2 the preparation method of the sacculus dilating catheter comprises the following steps：
First, there is provided a sacculus by execution step S20；
Then, step S21 is performed, carrying out folding to the sacculus forms pre-folded sacculus；
Then, step S22 is performed, the near-end of the pre-folded sacculus is fixedly connected with the distal end of an outer tube,
One inner tube sequentially passes through to the tube chamber of the outer tube and the body cavity of the pre-folded sacculus, and by said inner tube
Near-end is fixedly connected with the outer tube；
Then, step S23 is performed, said inner tube and the pre-folded sacculus are assembled, the assembling bag
Include and first rotate said inner tube relative to the pre-folded sacculus centered on the axle of said inner tube, then will be described
The distal end of inner tube is fixedly connected with the distal end of the pre-folded sacculus, to store the moment of torsion produced in assembling process,
Make the folding wings of the pre-folded sacculus in the shape of a spiral；
Then, step S24 is performed, moulding process is carried out.
The specific example provided for the preparation method described in embodiment two is as follows：
Example 3：FFS775S types folding machine is used to carry out 5 wingfold to external diameter for 4.0mm sacculus
1) nominal 4.0mm polyester elastomers sacculus is carried out into the wing of sacculus 5 by FFS775S types folding machine to roll over
It is folded, pre-folded sacculus is made；2) near-end of pre-folded sacculus is fixedly connected with the distal end of outer tube, said inner tube
Near-end be fixedly connected with the outer tube；3) inner tube and pre-folded sacculus are assembled, and outer tube and inner tube are made
12 circles are rotated against, then the distal end of inner tube and the distal end of pre-folded sacculus are aligned by sweat soldering stationary phase
Put；4) shaping is held through hot pressing again.
By examples detailed above, the external diameter for the sacculus dilating catheter for finding to prepare through measurement fills before being significantly less than folding
The sacculus of pressure, reduces the secondary application passed through external diameter value, be easy to follow-up sacculus of sacculus.
Embodiment three
Fig. 5 is refer to, it is the flow chart of the preparation method of sacculus dilating catheter in another embodiment of the present invention.
The difference of embodiment three and embodiment one is：Both for sacculus folding step relative to inner and outer tubes
Assemble the order of priority.Specifically, being first to carry out pre-folded to sacculus in embodiment one, afterwards again by inner tube
Assembled and (first folded, rear assembling) with outer tube；And embodiment three is the first direct inner tube to sacculus and outer
Pipe is assembled, and the sacculus after assembled is folded again (first assembled, rear to fold) afterwards.
As shown in figure 5, the preparation method of the sacculus dilating catheter comprises the following steps：
First, there is provided a sacculus by execution step S30；
Then, step S31 is performed, the near-end of the sacculus is fixedly connected with the distal end of an outer tube, and by one
Inner tube sequentially passes through the tube chamber of the outer tube and the body cavity of the sacculus, and by the distal end of said inner tube with it is described
The distal end of sacculus is fixedly connected；
Then, step S32 is performed, said inner tube and the outer tube are assembled, the assembling includes first to
Said inner tube is rotated centered on the axle of said inner tube relative to the outer tube, then by the near of said inner tube
End is fixedly connected with the outer tube, to store the moment of torsion produced in assembling process；
Then, step S33 is performed, after said inner tube and the outer tube are assembled, the sacculus is rolled over
Folded, in the presence of the moment of torsion, the folding wings of the sacculus after folding are in the shape of a spiral；Wherein, pass through
Folding machine is folded to the sacculus by hand, and the folding machine has multiple pleated sheets, the multiple
The end of pleated sheet is parallel to each other, the outer of each folding wings of the sacculus after folding and the axial direction of the sacculus
Between angle it is impartial.
Then, step S34 is performed, moulding process is carried out.It is preferred that, the moulding process is that shaping is held in hot pressing
Technique.
Specific example is provided below for the preparation method described in embodiment three, it is specific as follows：
Example 4：FFS1109 types folding machine is used to carry out 3 wingfold to external diameter for 2.5mm sacculus
1) near-end of nominal 2.5mm polyurethane elastomers sacculus is fixedly connected with the distal end of outer tube, sacculus
The distal end of inner tube of the distal end with penetrating is connected；2) inner and outer tubes are assembled, and outer tube and inner tube are made
Rotate against 8 circles, then outer tube and inner tube are fixed into relative position proximally by laser welding, sacculus keeps turning round
Turn state；3) wingfold of sacculus 3 is carried out by FFS1109 types folding machine again, withdraws from folding machine, form spiral
Structure；4) shaping is held through hot pressing again.
Example IV
Fig. 6 is refer to, it is the flow chart of the preparation method of sacculus dilating catheter in another embodiment of the present invention.
Example IV and embodiment three are that the inner and outer tubes first directly to sacculus are assembled, afterwards again to through group
Sacculus after dress is folded and (first assembled, rear to fold).The difference of example IV and embodiment three is：
Both are different to produce the specific order of connection of moment of torsion.In embodiment three, first by the near-end of sacculus and outer tube
Distal end is fixedly connected, and the distal end of said inner tube is fixedly connected with the distal end of the sacculus, in inner and outer tubes
After assembling, then the near-end of inner tube is fixedly connected with outer tube.And in example IV, first by the near-end of sacculus with
The distal end of outer tube is fixedly connected, and the near-end of said inner tube is fixedly connected with the outer tube, in inner tube and sacculus
After assembling, then the distal end of said inner tube is fixedly connected with the distal end of the sacculus.
As shown in fig. 6, the preparation method of the sacculus dilating catheter comprises the following steps：
First, there is provided a sacculus by execution step S40；
Then, step S41 is performed, the near-end of the sacculus is fixedly connected with the distal end of an outer tube, in one
Pipe sequentially passes through the tube chamber of the outer tube and the body cavity of the sacculus, and by the near-end of said inner tube with it is described outer
Pipe is fixedly connected；
Then, step S42 is performed, said inner tube and the sacculus are assembled, the assembling includes first to
Said inner tube is rotated centered on the axle of said inner tube relative to the sacculus, then by the remote of said inner tube
End is fixedly connected with the distal end of the sacculus, to store the moment of torsion produced in assembling process；
Then, step S43 is performed, after said inner tube and the outer tube are assembled, the sacculus is rolled over
Folded, in the presence of the moment of torsion, the folding wings of the sacculus after folding are in the shape of a spiral；
Then, step S44 is performed, moulding process is carried out.
Specific example is provided below for the preparation method described in example IV, it is specific as follows：
Example 5：FFS1109 types folding machine is used to carry out 3 wingfold to external diameter for 2.5mm sacculus
1) nominal 2.5mm polyurethane elastomers balloon proximal is fixedly connected with the distal end of outer tube, outer tube is with wearing
The near-end of the inner tube entered is connected；2) inner and outer tubes are assembled, and outer tube and inner tube is for the relative rotation
8 circles, then by the distal end of sacculus and the distal end of inner tube by laser welding fixation relative position, sacculus keeps reversing
State；3) wingfold of sacculus 3 is carried out by FFS1109 types folding machine again, withdraws from folding machine, form spiral knot
Structure；4) shaping is held through hot pressing again.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is
With the difference of other embodiment, between each embodiment identical similar portion mutually referring to.
To sum up, in the preparation method of sacculus dilating catheter provided by the present invention, by said inner tube and described
Outer tube or pre-folded sacculus are assembled, and store the moment of torsion produced in assembling process, so that the folding of sacculus
The wing is in the shape of a spiral.During using sacculus dilating catheter, when pressure release again after balloon expandable, moment of torsion is stored in sacculus
On, so that the folding wings of sacculus recover helical form, significantly reduce that sacculus is secondary to pass through external diameter value.Whole system
The method of standby sacculus dilating catheter is simple and easy to apply, and cost is low.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention,
Any change, modification that the those of ordinary skill in field of the present invention does according to the disclosure above content, belong to power
The protection domain of sharp claim.
Claims (14)
1. a kind of preparation method of sacculus dilating catheter, it is characterised in that including：
One sacculus is provided；
Folding is carried out to the sacculus and forms pre-folded sacculus；
The near-end of the pre-folded sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into institute
State the tube chamber of outer tube and the body cavity of the pre-folded sacculus, and by the distal end of said inner tube and the pre-folded ball
The distal end of capsule is fixedly connected；
Said inner tube and the outer tube are assembled, the assembling is included first by said inner tube with said inner tube
Axle centered on relative to outer tube rotation, then the near-end of said inner tube is fixedly connected with the outer tube,
The moment of torsion produced with storing in assembling process, makes the folding wings of the pre-folded sacculus in the shape of a spiral；
Carry out moulding process.
2. the preparation method of sacculus dilating catheter as claimed in claim 1, it is characterised in that by folding
Machine forms pre-folded sacculus to sacculus progress folding by hand.
3. the preparation method of sacculus dilating catheter as claimed in claim 2, it is characterised in that the folding
Machine has multiple pleated sheets, and the end of the multiple pleated sheet is parallel to each other.
4. the preparation method of sacculus dilating catheter as claimed in claim 1, it is characterised in that described to pre-fold
The outer of the folding wings of folded sacculus is axially in parallel with the sacculus.
5. the preparation method of sacculus dilating catheter as claimed in claim 1, it is characterised in that said inner tube
Rotated centered on the axle of said inner tube relative to the outer tube, the number of turns rotated against is 0.01~20
Circle.
6. the preparation method of sacculus dilating catheter as claimed in claim 1, it is characterised in that the shaping
Technique is that moulding process is held in hot pressing.
7. a kind of preparation method of sacculus dilating catheter, it is characterised in that including：
One sacculus is provided；
Folding is carried out to the sacculus and forms pre-folded sacculus；
The near-end of the pre-folded sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into institute
The tube chamber of outer tube and the body cavity of the pre-folded sacculus are stated, and the near-end of said inner tube is fixed with the outer tube
Connection；
Said inner tube and the pre-folded sacculus are assembled, the assembling is included first by said inner tube with institute
State relative to pre-folded sacculus rotation centered on the axle of inner tube, then by the distal end of said inner tube and described pre-
The distal end for folding sacculus is fixedly connected, and to store the moment of torsion produced in assembling process, makes the pre-folded sacculus
Folding wings in the shape of a spiral；
Carry out moulding process.
8. a kind of preparation method of sacculus dilating catheter, it is characterised in that including：
One sacculus is provided；
The near-end of the sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into the outer tube
Tube chamber and the sacculus body cavity, and the distal end of said inner tube is fixedly connected with the distal end of the sacculus；
Said inner tube and the outer tube are assembled, the assembling is included first by said inner tube with said inner tube
Axle centered on rotated relative to the outer tube, then the near-end of said inner tube and the outer tube fixed connected
Connect, to store the moment of torsion produced in assembling process；
After said inner tube and the outer tube are assembled, the sacculus is folded, in the work of the moment of torsion
Under, the folding wings of the sacculus after folding are in the shape of a spiral；
Carry out moulding process.
9. the preparation method of sacculus dilating catheter as claimed in claim 8, it is characterised in that by folding
Machine is folded to the sacculus by hand.
10. the preparation method of sacculus dilating catheter as claimed in claim 9, it is characterised in that the folding
Folded machine has multiple pleated sheets, and the end of the multiple pleated sheet is parallel to each other.
11. the preparation method of sacculus dilating catheter as claimed in claim 8, it is characterised in that after folding
The sacculus the outer of each folding wings and the axial direction of the sacculus between angle it is impartial.
12. the preparation method of sacculus dilating catheter as claimed in claim 8, it is characterised in that in described
Pipe is rotated centered on the axle of said inner tube relative to the outer tube, and the number of turns rotated against is 0.01~20
Circle.
13. a kind of preparation method of sacculus dilating catheter, it is characterised in that including：
One sacculus is provided；
The near-end of the sacculus is fixedly connected with the distal end of an outer tube, an inner tube is sequentially passed through into the outer tube
Tube chamber and the sacculus body cavity, and the near-end of said inner tube is fixedly connected with the outer tube；
Said inner tube and the sacculus are assembled, the assembling is included first by said inner tube with said inner tube
Axle centered on rotated relative to the sacculus, then by the distal end of said inner tube and the distal end of the sacculus
It is fixedly connected, to store the moment of torsion produced in assembling process；
After said inner tube and the outer tube are assembled, the sacculus is folded, in the work of the moment of torsion
Under, the folding wings of the sacculus after folding are in the shape of a spiral；
Carry out moulding process.
14. a kind of sacculus dilating catheter, it is characterised in that according to any one of claim 1-13
The preparation method of sacculus dilating catheter is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147302.0A CN107198813A (en) | 2016-03-15 | 2016-03-15 | The preparation method and sacculus dilating catheter of sacculus dilating catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147302.0A CN107198813A (en) | 2016-03-15 | 2016-03-15 | The preparation method and sacculus dilating catheter of sacculus dilating catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107198813A true CN107198813A (en) | 2017-09-26 |
Family
ID=59903650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147302.0A Pending CN107198813A (en) | 2016-03-15 | 2016-03-15 | The preparation method and sacculus dilating catheter of sacculus dilating catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107198813A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420375A (en) * | 2019-06-27 | 2019-11-08 | 先健科技(深圳)有限公司 | Foley's tube and preparation method thereof |
| CN110975112A (en) * | 2019-12-17 | 2020-04-10 | 禾木（中国）生物工程有限公司 | Preparation method of balloon catheter |
| CN111202896A (en) * | 2018-11-05 | 2020-05-29 | 上海微创心通医疗科技有限公司 | Balloon dilatation catheter, balloon and preparation method thereof |
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| US6468243B1 (en) * | 1999-08-25 | 2002-10-22 | Nipro Corporation | Balloon catheter |
| US20050059989A1 (en) * | 2003-09-17 | 2005-03-17 | Scimed Life Systems, Inc. | Balloon assembly with a torque |
| CN104755126A (en) * | 2012-08-30 | 2015-07-01 | C·巴盖伊珊 | Devices and methods for the treatment of vascular disease |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6468243B1 (en) * | 1999-08-25 | 2002-10-22 | Nipro Corporation | Balloon catheter |
| US20050059989A1 (en) * | 2003-09-17 | 2005-03-17 | Scimed Life Systems, Inc. | Balloon assembly with a torque |
| CN104755126A (en) * | 2012-08-30 | 2015-07-01 | C·巴盖伊珊 | Devices and methods for the treatment of vascular disease |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111202896A (en) * | 2018-11-05 | 2020-05-29 | 上海微创心通医疗科技有限公司 | Balloon dilatation catheter, balloon and preparation method thereof |
| CN110420375A (en) * | 2019-06-27 | 2019-11-08 | 先健科技(深圳)有限公司 | Foley's tube and preparation method thereof |
| WO2020259711A1 (en) * | 2019-06-27 | 2020-12-30 | 先健科技(深圳)有限公司 | Balloon catheter and method of manufacturing same |
| CN110975112A (en) * | 2019-12-17 | 2020-04-10 | 禾木（中国）生物工程有限公司 | Preparation method of balloon catheter |
| CN110975112B (en) * | 2019-12-17 | 2022-02-08 | 禾木（中国）生物工程有限公司 | Preparation method of balloon catheter |
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Application publication date: 20170926 |