CN107596539A - A kind of expansion of balloon catheter - Google Patents
A kind of expansion of balloon catheter Download PDFInfo
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- CN107596539A CN107596539A CN201710963270.6A CN201710963270A CN107596539A CN 107596539 A CN107596539 A CN 107596539A CN 201710963270 A CN201710963270 A CN 201710963270A CN 107596539 A CN107596539 A CN 107596539A
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- conduit
- seal wire
- sacculus
- expansion
- operating portion
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Abstract
The invention discloses a kind of expansion of balloon catheter, dilating sacculus includes the seal wire for being arranged in catheter interior, tube at one end is fixedly connected with operating portion, there is a sacculus in the distal exterior of the conduit away from operating portion, conduit cavity is connected with balloon lumen by being arranged on supravasal connectivity structure, seal wire includes the first seal wire and the second seal wire being separated from each other, and the rear end of the first seal wire is connected to the connect-disconnect structure of operating portion rear end, and the second seal wire is fixed on catheter interior by technique for fixing.The guidewire lumen and fluid injection chamber of the present invention can share same conduit cavity, substantially reduce the conduit diameter of the present invention, so that the expansion of balloon catheter of the present invention can insert in human body the narrow body or cavity that need to expand by the instrument channel of endoscope, visualized operation is realized, there is good practical value.
Description
Technical field
The present invention relates to medical instruments field, more particularly, to a kind of expansion of balloon catheter.
Background technology
The expansion of balloon catheter of prior art, such as Application No. CN201520474689.1 utility model are related to one kind
For the plugging device of lithotrity, the plugging device includes one-way cock switch, conduit, handle, closure sacculus, diaphragm, metal
Guiding wire, aperture；Described closure sacculus is wrapped in catheter outer surface, and the blister cavities of a closing is formed with conduit, and blister cavities is straight
Footpath 5-25mm；The closure sacculus is oval or spherical, length 0.5-5cm；Set on the conduit of the closure sacculus parcel
There is aperture；The distal end of catheter end is fixedly connected with metal guide seal wire；The metal guide seal wire is wrapped up by diaphragm；
The catheter proximal end is fixedly connected with handle；The handle is provided with striped；The one-way cock switch is connected to catheter proximal end end
Portion；Described one-way cock switch is provided with valve block；Described one-way cock switch connection syringe or charge valve.The utility model
The plugging device for lithotrity, the conduit of the closure sacculus parcel is provided with aperture, and closure sacculus and conduit cavity pass through
The aperture is interconnected, and liquid can inject conduit cavity subsequently into closure sacculus to expand sacculus, however, the practicality
For new closure sacculus when dilation by water injection longitudinally extends, conduit also becomes longitudinal stretching deformation, because both materials are different, leads
The deformation of pipe can cause the sacculus flexural deformation of water filling, and the distracting force on surface is uneven when can so cause sacculus swelling, increase
Operating difficulty, surgical result is reduced, and easily cause apparatus damage.
Application No. CN201510809012.3 invention provides a kind of ureteral calculi movement plugging device, and it is by leading
Manage (1), expansible compressing gasbag (2) and valve (3) composition, conduit (1) is flexible hollow elongated tubular shape structure, by with
The silica gel or latex material of elasticity are made, and the front end of conduit (1) is provided with opening, and the opening is located at expansible compressing gasbag (2)
Air bag in；Expansible compressing gasbag (2) is arranged on the front end of conduit (1), and its expansion state is spheroid shape；Valve (3) position
In the end of conduit (1), syringe access port (4) is provided with.The leading portion of the conduit (1) of the device can pass through operating cavity
Air bag (2) is relatively fixed in the upstream ureteral lumen of calculus or renal plevis exit into ureter, realize blocking note
Full expansion destruction of the water current to kidney, while blocked any calculus to shift or escape into renal plevis completely
Path.The front end of the conduit (1) of the invention is provided with opening, and the opening is located in the air bag of expansible compressing gasbag (2)；It can expand
Compressing gasbag (2) is arranged on the front end of conduit (1), such folding this cause before guiding seal wire can not be arranged at compressing gasbag
End, so as to which by guiding seal wire to play safety guiding and mark effect, so as to easily cause injury of ureter, operation can not be reduced
Success rate.
Application No. CN201120001866.6 utility model discloses a kind of ureteral catheter with air bag, bag
Include：Body and air bag, wherein：Air bag is located on the outside of body；The both ends of body are penetrating, and are set on its wall in the region in air bag
It is equipped with through hole；Flow-stopping plate is provided with body, the space in body is divided into two separate chambers, respectively noted by flow-stopping plate
Water cavity and guidewire lumen, wherein water-injecting cavity are connected with through hole, and one end is provided with opening, and the other end is closed, and guidewire lumen both ends are penetrating.
Space in body is divided into two separate chambers, respectively water-injecting cavity and guidewire lumen by the utility model by flow-stopping plate,
Set because flow-stopping plate is parallel to the axial direction of ureteral catheter, the caliber space that two independent chambers each need, which can increase, leads
The diameter of pipe, so that the diameter overstriking of conduit, is unfavorable for conduit and stretches into human body from instrument channel, it also can further increase trouble
The pain of person.
The expansion of balloon catheter of above-mentioned prior art is limited the instrument channel that can not insert endoscope by diameter, is also easily drawn
The discomfort of patient over the course for the treatment of is played, improves the difficulty of operation technique, and when air bag longitudinally extends in dilation by water injection,
Deformation is easily bent, so as to reduce surgical result, easily causes apparatus damage.
The content of the invention
The present invention disclose a kind of expansion of balloon catheter, including conduit and the seal wire that is arranged in catheter interior, tube at one end it is solid
Surely operating portion is connected with, is coated with sacculus in the distal exterior of the conduit away from operating portion, conduit cavity and balloon lumen are by setting
To put and be connected in supravasal connectivity structure, seal wire is included in the first seal wire and the second seal wire being separated from each other in balloon lumen,
The rear end of first seal wire is connected to the connect-disconnect structure of operating portion, and the second seal wire is fixed on the other end of conduit by technique for fixing.
Preferably, body region of the conduit in sacculus is separated from each other as the first body and the second body, the first body
Rear end is fixedly connected on operating portion, and the outer wall of the second body is fixedly connected on sacculus, disconnected between the first body and the second body
Face is relative to form a communicating passage, and conduit cavity is connected by communicating passage as connectivity structure with balloon lumen, the second seal wire
The insertion depth in the first body is inserted more than the separating distance when sacculus 4 expands between the first body and the second body.
Further, the tube wall of the conduit in sacculus is provided with one or more through holes, and through hole connects as connectivity structure
Conduit cavity and balloon lumen, through hole 14 are arranged on the end that the second seal wire inserted in the first body and the first body and sacculus
Between junction.
Preferably, the part that is connected of sacculus front end and the second body is provided with developing ring, the conduit in region in developing ring
Inside closing.
Preferably, side of the conduit away from operating portion sets tip catheter, and the second seal wire is extended in tip catheter, and second
The distance that seal wire is located at end and tip catheter top in tip catheter is 0.5mm-2mm.
Preferably, side of the conduit away from operating portion sets tip catheter, and the second seal wire extends to tip away from operating portion
The outside of conduit, the part outside tip catheter of the second seal wire are arranged to orbicule structure.
Preferably, operating portion includes Handheld Division, and conduit is arranged in inside Handheld Division, forms the liquid for being communicated in balloon lumen
Passage.
Further, the rear end of Handheld Division is provided with two-way cock, is provided with cock through hole on the plug of two-way cock, works as rotation
When the mouth of pipe of plug through hole and conduit is coaxial, fluid passage is opened；When cock through hole is vertical with the mouth of pipe of conduit, closing liquid leads to
Road.
Preferably, graduation mark is provided with the conduit outer peripheral face of sacculus rear end.
Further, the rear end of operating portion is provided with external screw thread, and external screw thread can be socketed cap nut, and cap nut is as connect-disconnect structure
It is connected with the rear end of the first seal wire, the first seal wire can be extracted by dismantling cap nut.
In summary, expansion of balloon catheter of the invention, including the first seal wire and the second seal wire being separated from each other, first leads
Silk can be plugged by the opening of rear end of conduit, so that guidewire lumen and fluid injection chamber can share same conduit cavity, nothing
Fluid injection chamber need to be in addition set, or without setting diaphragm to protect seal wire in addition on seal wire surface, so greatly reduced
The diameter of the expansion of balloon catheter of the present embodiment, so that the expansion of balloon catheter of the present invention can pass through the apparatus of endoscope
The narrow body or cavity expanded are needed in passage insertion human body, visualized operation is realized, there is good practical value.
Available for urinary system (ureter), digestive system (bile duct, ductus pancreaticus) respiratory system (air flue) body cavities are narrow
Expansion.
For the above of the present invention can be become apparent, preferred embodiment cited below particularly, and with reference to accompanying drawing, make detailed
It is described as follows.
Brief description of the drawings
The present invention is introduced below in conjunction with accompanying drawing.
Fig. 1 is the partial structural diagram of the expansion of balloon catheter in the embodiment of the present invention；
Fig. 2 is another partial structural diagram of the expansion of balloon catheter in the embodiment of the present invention；
Fig. 3 is the overall structure diagram of the expansion of balloon catheter in the embodiment of the present invention.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.
The illustrative embodiments of the present invention are introduced with reference now to accompanying drawing, however, the present invention can use many different shapes
Formula is implemented, and is not limited to embodiment described herein, there is provided these embodiments are to disclose at large and fully
The present invention, and fully pass on the scope of the present invention to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements are attached using identical
Icon is remembered.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
First embodiment
As shown in figure 1, first embodiment of the invention discloses a kind of expansion of balloon catheter, including it is arranged in conduit 1 and leads
Seal wire 2 inside pipe 1, the one end of conduit 1 are fixedly connected with operating portion 3, have in the distal exterior of the conduit 1 away from operating portion 3
One sacculus 4, it is connected between the cavity of conduit 1 and the inner chamber of sacculus 4 by the connectivity structure being arranged on conduit 1, wherein, seal wire
2 include the first seal wires 21 and the second seal wire 22 that are separated from each other, and the rear end of the first seal wire 21 passes through the pluggable ground company of connect-disconnect structure
It is connected on operating portion 3, the second seal wire 22 is fixed on the other end of conduit 1 by technique for fixing.
Seal wire 2 includes the first seal wire 21 and the second seal wire 22 being separated from each other, and the first seal wire 21 can be by setting on operating portion 3
The connect-disconnect structure put is plugged, and when expansion of balloon catheter inserts human body, the first seal wire 21, which can pass through to set on operating portion 3, to be plugged
Structure inserts conduit cavity, and conduit cavity wears seal wire as guidewire lumen, and insertion is guided using seal wire, can general during fluid injection
First seal wire 21 is extracted, and injects liquid using conduit cavity as fluid injection chamber, so that guidewire lumen and fluid injection chamber can share together
One conduit cavity, without setting fluid injection chamber in addition, or without setting diaphragm to protect seal wire in addition on seal wire surface
Shield, consequently, it is possible to the diameter of the expansion of balloon catheter of the present embodiment be substantially reduced, so that the dilating sacculus of the present embodiment
Conduit can be inserted in human body in narrow body or the cavity human body for needing to expand by the instrument channel of endoscope, realized visual
Change operation.
Wherein, the liquid for injecting sacculus is preferably physiological saline, when to conduit internal injection physiological saline, physiological saline
Entered by the rear end of conduit 1, because the front end of conduit 1 is enclosed construction, physiological saline flows out simultaneously from supravasal connectivity structure is arranged at
It is accumulated in sacculus 4 so that 4 outside expanse of sacculus, when extracting physiological saline out from catheter interior, sacculus 4 shrinks back original
Beginning state.
Wherein, the inside of conduit 1 is hollow structure, and the front end of conduit 1 is enclosed construction, and the rear end of conduit 1 is opening knot
Structure, guiding seal wire 2 is worn inside conduit 1, and the cavity of conduit 1 is connected with the inner chamber of sacculus 4 by the connectivity structure being arranged on conduit 1
It is logical.
Specifically, as shown in figure 1, in the present embodiment, conduit 1 is separated from each other as first in the body region in sacculus 4
The body 12 of body 11 and second, the rear end of the first body 11 are fixedly connected on operating portion 3, and the outer wall of the second body 12 is fixedly connected
The relative composition communicating passage 13 of section between sacculus 4, the first body 11 and the second body 12, communicating passage 13 is as connection
Structure is by the cavity of conduit 1 and the intracavity inter-connection of sacculus 4.
As shown in fig. 1, the inside of axis extension insertion first body 11 of the rear end of the second seal wire 22 along conduit 1,
The insertion depth that second seal wire 22 is inserted in the first body 11 is more than the first body 11 and second body when sacculus 4 expands
Separating distance between 12, when the second 12 displacement longitudinally forward of body, the displacement longitudinally forward together therewith of the second seal wire 22, the
One body 11 is now along the axis of conduit 1 with respect to rearward displacement, because the second seal wire 22 extends to from inside the second body 12
Inside first body 11, and the insertion depth that inserts in the first body 11 of the second seal wire 22 is more than and first managed when sacculus 4 expands
Separating distance between body 11 and second body 12, it can ensure that conduit will not integrally be bent in the section part of conduit and become
Shape, serve good connection and guiding function.
In the present embodiment, by conduit 1 sacculus 4 in region in be divided into two sections, in surgical procedure in fluid injection, ball
Capsule 4 outwards expansion simultaneously longitudinal direction elongation, the second body 12 can also displacement longitudinally forward therewith, so can cause sacculus 4 not
Can be because conduit draw high deformation and bent, sacculus 4 is being inserted into the narrow body or chamber of ureter etc such as in human body
It is expansible uniform after body, make each side wall uniform force of narrow body or cavity.The separate design of two sections of conduits avoids existing
Conduit 1 in technology is an entirety, and when sacculus 4 expands longitudinal direction elongation, conduit 1 becomes longitudinal stretching deformation, due to the He of conduit 1
The material of sacculus 4 is different, and the deformation of conduit 1 can cause the sacculus flexural deformation after expansion, the support on surface when causing the sacculus 4 to expand
Opening force is uneven so that each side wall unbalance stress of narrow body or cavity expanded is needed in human body, causes the effect of diagnosis and treatment
It is bad, cause patient more uncomfortable.
Second seal wire 22 is inserted in the first body 11, and the insertion depth that the second seal wire 22 is inserted in the first body 11 is more than
Separating distance when sacculus 4 expands between the first body 11 and second body 12.It may insure when sacculus 4 expands, the
Two seal wires 22 will not be deviate from out of first body 11, so that the first body 11 and second body 12 are basic in separation
It is maintained on the axis of conduit 1, further ensuring that will not flexural deformation when sacculus 4 expands so that needs the narrow pipe expanded
Body or each side wall of cavity are more uniformly stressed, and greatly improve the effect of diagnosis and treatment.
Communicating passage 13 can both be used as connectivity structure by the cavity of conduit 1 and the intracavity inter-connection of sacculus 4 so that guidewire lumen and
Fluid injection chamber can share same conduit cavity, substantially reduce the diameter of the expansion of balloon catheter of the present embodiment, so that this
The expansion of balloon catheter of embodiment can insert in human body the narrow body or chamber that need to expand by the instrument channel of endoscope
Body, realize visualized operation；The Bending Deformation when fluid injection expands of air bag 4 is also possible to prevent, there is good therapeutic effect.
One or more through holes 14 are additionally provided with the tube wall of the first body 11 in sacculus 4, through hole 14 is used as connectivity structure
Connect the cavity of the first body 11 and the inner chamber of sacculus 4.Through hole 14 be arranged on the second seal wire 22 insert the first body 11 in end and
Between first body 11 and the junction of sacculus 4, that is to say, that through hole 14 is arranged on the second seal wire 22 and inserted in the first body 11
End close operating portion 3 side.
In addition, the cavity of conduit 1 can be connected by through hole 14 as connectivity structure with sacculus 4 so that guidewire lumen and fluid injection chamber
Same conduit cavity can be shared, substantially reduces the diameter of the expansion of balloon catheter of the present embodiment.Also, when the first seal wire 21
When carrying out fluid injection after connect-disconnect structure the first body 11 of extraction of the operating portion 3 by being connected to, the first seal wire 21 and second is led
Silk 22 will not stop through hole 14, can greatly speed up the speed of fluid injection expansion.
Preferably, as shown in figure 1, developing ring 5 is provided with the part that is connected of the second body 12 in the front end of sacculus 4, in nothing
In the case of instrument channel of the method using endoscope, in order to determine the standard of body or inside cavity movement of the sacculus 4 in human body
True position, position of the sacculus 4 in the body or cavity of human body can be determined by x-ray radiography videoing skill using developing ring
Put, so as to monitor the position of the body of human body or inside cavity, reach the purpose of diagnosis and treatment.
Equally, those skilled in the art can also be as needed, is set in the rear end of sacculus 4 with the part that is connected of conduit 1
There is the second developing ring (not shown), the setting of two developing rings can determine sacculus 4 by the way that x-ray radiography videoing skill is clearer
Position in the body or cavity of human body.
Further, the second seal wire 22 is fixedly connected on the inner side of developing ring 5 by technique for fixing, the technique for fixing bag
Include glue and fix or heat fixation, can also utilize other fixed structures or fixed component that both are fixed
Connection.
Further, developing ring 5 coats the inside closing of the conduit in region so that the liquid of injection can not enter developing ring
Front, the balloon interior at the rear of developing ring 5 can only be rested on, accelerate the speed of fluid injection, so as to further shorten operation
Time.
In the present embodiment, the material of the conduit between developing ring 5 and operating portion 3 can generally use PEEK, can also use Buddhist nun
The materials, preferably PEEK materials such as dragon, polyene amine；PEEK materials have the advantages of diameter is thin and rigidity is good so that developing ring rear
Pipe size can reach 0.6~1.5 millimeter, preferably 0.7~1.0 millimeter, optimal 0.8mm；The shore hardness of conduit is reachable
To 50D~95D；It is preferred that 80D~90D.Conduit can further be reduced while conduit guiding function is ensured using PEEK materials
Diameter, so as to improve treatment effect, reduce the pain of patient.
It is preferred that as shown in figure 1, side of the conduit 1 away from operating portion 3 can set tip catheter 23, the second seal wire 22
Extend in tip catheter 23, the front end of tip catheter 23 is more than the top of the second seal wire 22 about 0.5mm-2mm, i.e. the second seal wire
22 distances for being located at end to the top of tip catheter 23 of developing ring front end in the tip catheter 23 are 0.5mm-2mm, this
In inventive embodiments, the material of tip catheter 23 is soft high polymer material, preferably TPU.By tip catheter 23 using soft
Softwood matter, hard rigid material insertion can be avoided to cause to damage to urine output inside pipe wall, improve the probability of successful surgery, simultaneously because
Also include the second seal wire 22 of part inside tip catheter 23 so that it has certain rigidity, being capable of guiding catheter insertion people
Internal portion.Wherein, the length range that the front end of tip catheter 23 exceedes at the top of seal wire is 0.5mm-2mm, if length is less than 0.5mm,
Catheter tip is easily poked in the insertion process of second seal wire 22, if length is more than 2mm, catheter proximal end can be due to too soft
And can not insert, therefore 0.5mm-2mm length is suitable scope.
Further, can also be orbicule structure by the end set of above-mentioned tip catheter 23, the light of orbicule structure
Sliding spherical design is capable of the conduit insertion of guiding catheter insertion inside of human body elongate to human body interior tube body or cavity wall
Damage.
As shown in figure 1, in first embodiment of the invention, graduation mark is additionally provided with the outer peripheral face of conduit 1 of the rear end of sacculus 4,
Graduation mark can be equidistant graduation mark, so can observe the insertion depth of sacculus 4 by the development of endoscope, tradition
Be that the position of developing ring is determined to determine the position of sacculus by X ray.Therefore, can only be set in the embodiment of the present invention
There is a developing ring 5 to be used as standby, just position is determined using endoscopic visualizations and scale under normal circumstances, only in graduation mark
Do not see Chu Shike and aid in X ray using developing ring 5 to determine the accurate location of conduit insertion.
It is preferred that the outer wall of conduit 1 in the front of operating portion 3 is provided with scale marker, 60cm as shown in Figure 1,80cm with
100cm, the distance of inside of human body cavity is entered for identifying conduit, and operator can be visually observed that conduit by scale marker
The length of insertion.
Preferably, the seal wire 2 of the present embodiment is wire guide, and wire guide can use the metals such as Nitinol or stainless steel
Material, more preferably Nitinol.Nitinol is a kind of marmem, and marmem can be by itself
Plastic deformation is automatically restored to the special alloy of original-shape under a certain specified temp.Its expansion and contraction is tired more than 20%
The labor life-span reaches 1,*10 7 powers, and damping characteristic is higher than common spring 10 times, its corrosion resistance better than it is best at present it is medical not
Become rusty steel, therefore can meet the application demand of all kinds of engineerings and medical science, is a kind of very outstanding functional material.Memorial alloy removes
Outside shape memory function with uniqueness, also with the excellent characteristics such as wear-resistant, anticorrosive, high-damping and super-elasticity.Utilize nickel
Titanium alloy can greatly prolong the service life of apparatus, reduce the apparatus proportion of goods damageds as wire guide.
As shown in figure 3, the operating portion 3 of the expansion of balloon catheter of the present embodiment includes Handheld Division 31, conduit is arranged in hand-held
The inside in portion 31, form the injecting fluid passage for being communicated in the inner chamber of sacculus 4.The design of Handheld Division 31 is easy to operator to grip
Operated.Further, as can be known from Fig. 1, Handheld Division 31 is coniform body structure, i.e., as illustrated in the drawing Handheld Division 31 from
Rear end phase point diameter gradually seamlessly transits the bodies of reduction, and the design of the coniform body structure meets ergonomic designs,
So that operator's gripping expansion of balloon catheter is more convenient and comfortable when being operated.It may occur to persons skilled in the art that
It is that the shape of the Handheld Division 31 is not limited to cone shape cited in the present embodiment, can also is that other are easy to hand-held behaviour
The shape design of work.
Preferably, set in the rear end of Handheld Division 31 and led to by two-way cock 32, the plug of two-way cock 32 provided with cock
Hole, the plug of two-way cock is rotated, when cock through hole is coaxial in the mouth of pipe of conduit 1, fluid passage can be opened；When cock through hole
, can closing liquid passage when the mouth of pipe of conduit 1 is vertical.As shown in fig. 1, two-way cock 32 is fixed on Handheld Division by nut
Rear end, connect instrument used for injection in two-way cock 32, when rotate two-way cock open fluid passage when, instrument used for injection can be passed through
Phase conduit inside cavity injects liquid, in practice, instrument used for injection can practical 20 atmospheric pressure water injecting pump；When rotation two-way cock
During closing liquid passage, it on the one hand can prevent pollutant, the dust in the external world etc. from entering ureter by conduit 1, cause ureter
Inner wall membrane infects, and on the other hand, expansion pressure can be kept to prevent the liquid in sacculus 4 from flowing out so that the closure shape of sacculus 4 is steady
It is fixed.The design of two-way cock 32 is compared with existing injection structure, because existing injection structure is needed by handle or other knots
The push-and-pull of structure controls opening or closing for injection inlet, and connection between its handle and conduit is revocable, by continuous
During drawing handle, handle is easily damaged；And the two-way conduit 32 of the present invention is to carry out fluid passage by the action of rotation
Open and close, it is simple in construction, it is easily operated, and extend the instrumentation life-span.
As shown in Figure 3, Handheld Division 31 and the end of two-way cock 32 are the null interface of standard, available for external note
The instruments used for injection such as water pump.Null interface generalities are stronger, can configure different utensils.
Further, the rear end of operating portion 3 is additionally provided with external screw thread 33, and external screw thread 33 can be socketed cap nut 35, and cap nut is made
It is connected for connect-disconnect structure with the rear end of the first seal wire 21 so that in surgical procedure, operator can twist cap nut 32 to drive
Moved outside first seal wire 21, so as to extract the first seal wire；Or after the first seal wire of insertion, twist cap nut 35 and be allowed to be fixed on outside
On screw thread 33.It may occur to persons skilled in the art that the connect-disconnect structure of the first seal wire 21 is not limited only to the present embodiment and provided
Cap nut, in addition to other can realize the connect-disconnect structure of identical function.
As shown in figure 3, operating portion 3 also includes stress spread pipe 34, stress spread pipe 34 is arranged on the front end of Handheld Division 31,
Conduit 1 is arranged in the inside of stress spread pipe 34.Its effect is to avoid stress of the conduit 1 at base portion excessive and damage, and is also carried
The high operating handle of operator, prevent apparatus consume caused by cost allowance.Stress spread pipe is cylindric or inner hollow
Cone shape, cone shape have it is backward before external diameter be gradually reduced, can in shape seamlessly transit and be connected with Handheld Division 31, by
Power is more uniformly distributed, and outward appearance is more aesthetically pleasing.
Second embodiment
Second embodiment of the invention discloses a kind of expansion of balloon catheter, including is arranged in the seal wire 2 inside conduit 1, conduit 1
One end is fixedly connected with operating portion 3, has a sacculus 4, the cavity of conduit 1 and ball in the distal exterior of the conduit 1 away from operating portion 3
The inner chamber of capsule 4 is connected by the connectivity structure being arranged on conduit 1, and the first seal wire 21 and second that seal wire 2 includes being separated from each other is led
Silk 22, the rear end of the first seal wire 21 is connected to the connect-disconnect structure of the rear end of operating portion 3, and the second seal wire 22 is fixed on by technique for fixing
Inside conduit 1.
The present embodiment is the variation of first embodiment, as shown in Fig. 2 the difference of the present embodiment and first embodiment
It is：Side of the conduit 1 away from the operating portion 3 sets tip catheter 23, and the second seal wire 22 extends to tip away from operating portion 3
The outside of conduit 23, the part outside tip catheter 23 of the second seal wire 22 are arranged to orbicule structure 6, i.e. the second seal wire
22 head welding is integrally formed orbicule structure 6, that is, forms the seal wire with bulb.
It so can reach following effect：1. reducing tube material, cost is reduced；2. thinner seal wire is during insertion more
Play guiding function well；3. the seal wire that the design of orbicule structure farthest avoids elongate is inserted in ureter
The frictionally damage of wall.Preferably, seal wire 2 is wire guide, and wire guide can use Nitinol or stainless steel and other metal materials,
More preferably Nitinol.Nitinol is a kind of marmem, and marmem is can be by the plasticity of itself
Deformation is automatically restored to the special alloy of original-shape under a certain specified temp.Its expansion and contraction is more than 20%, the tired longevity
Life is up to 1,*10 7 powers, and damping characteristic is higher than common spring 10 times, and its corrosion resistance is medical stainless better than best at present
Steel, therefore the application demand of all kinds of engineerings and medical science can be met, it is a kind of very outstanding functional material.Memorial alloy is except tool
Outside the shape memory function for having uniqueness, also with the excellent characteristics such as wear-resistant, anticorrosive, high-damping and super-elasticity.Utilize NiTi
Alloy can greatly prolong the service life of apparatus, reduce the apparatus proportion of goods damageds as wire guide.
In summary, expansion of balloon catheter involved in the present invention, including the first seal wire and the second seal wire being separated from each other,
First seal wire can be plugged by the opening of rear end of conduit, so that guidewire lumen and fluid injection chamber can share same catheter lumen
Body, without setting fluid injection chamber in addition, or without setting diaphragm to protect seal wire in addition on seal wire surface, so significantly
The diameter of the expansion of balloon catheter of the present invention is reduced, so that the expansion of balloon catheter of the present invention can pass through the device of endoscope
The narrow body or cavity expanded are needed in tool passage insertion human body, visualized operation is realized, there is good practical value.
Expansion of balloon catheter involved in the present invention can be used for urinary system (ureter), digestive system (bile duct, ductus pancreaticus)
The narrow expansion of respiratory system (air flue) body cavities, but not limited to this, expansion of balloon catheter involved in the present invention can also
Used as plugging device, for example, gap insertion of the front end of conduit 1 between ureter wall and calculus, reaches the upper of calculus
When trip is even up to roomy renal pelvic cavity, the first seal wire can also be extracted from the opening of rear end of conduit, using conduit as fluid injection
Chamber carrys out saline injection so that the sacculus 4 into calculus upstream or renal pelvic cavity is expanded, swollen in the ureteral lumen of calculus upstream
Swollen and closure so that the stone debris in downstream also has flushing liquid to cannot be introduced into renal pelvic cavity, prevents from escaping on ureter rubble；Or
After the balloon expandable of renal pelvic cavity, the renal plevis that renal pelvic and ureteral tumor is blocked after the near-end of conduit 1 suitably drawing is exported,
So that the calculus of any ureter, stone debris, flushing liquid cannot be introduced into renal pelvic cavity, the broken of ureteral calculi is then carried out
Stone processing, such as carries out laser fiber rubble, and the liquid in sacculus is extracted after calculus is disposed, then extracts conduit out.It is actual
In operation, multiple dilating sacculus may be selected to adjust Balloon size so that sacculus is preferably bonded with urine output inside pipe wall, tightening seal
Stifled ureteral calculi, prevents from escaping on ureter rubble, is easy to operation technique, improves rubble success rate..
In addition, the above-described embodiments merely illustrate the principles and effects of the present invention for present invention institute, not for limitation
The present invention.Any those skilled in the art can all repair under the spirit and scope without prejudice to the present invention to above-described embodiment
Decorations change.Therefore, those skilled in the art without departing from disclosed spirit with completed under technological thought one
Equivalent modification or change are cut, should be covered by the claim of the present invention.
Claims (10)
1. a kind of expansion of balloon catheter, including conduit (1) and the seal wire (2) for being arranged in the conduit (1) inside, the conduit
(1) one end is fixedly connected with operating portion (3), and ball is coated with the distal exterior of the conduit (1) away from the operating portion (3)
Capsule (4), conduit (1) cavity are connected with the sacculus (4) inner chamber by the connectivity structure being arranged on conduit (1), and it is special
Sign is that the seal wire (2) is included in the first seal wire (21) and the second seal wire that the sacculus (4) interior intracavitary is separated from each other
(22), the rear end of first seal wire (21) is connected to the connect-disconnect structure of the operating portion (3), and second seal wire (22) passes through
Technique for fixing is fixed on the other end of the conduit (1).
2. expansion of balloon catheter as claimed in claim 1, it is characterised in that pipe of the conduit (1) in the sacculus (4)
Body region is separated from each other is fixedly connected on institute for the first body (11) and the second body (12), the rear end of first body (11)
Operating portion (3) is stated, the outer wall of second body (12) is fixedly connected on the sacculus (4), first body (11) and institute
State the section between the second body (12) and form communicating passage (13) relatively, the communicating passage (13) is used as the connectivity structure
By the conduit (1) cavity and the sacculus (4) intracavity inter-connection, second seal wire (22) inserts first body (11)
Interior insertion depth is more than point between the first body (11) and second body (12) described in when the sacculus (4) expands
Separation from.
3. expansion of balloon catheter as claimed in claim 2, it is characterised in that first body in the sacculus (4)
(11) tube wall is provided with one or more through holes (14), and the through hole (14) is as connectivity structure connection first pipe
Body (11) cavity and the sacculus (4) inner chamber, the through hole (14) are arranged on the second seal wire (22) insertion first pipe
Between end and the junction of first body (11) and the sacculus (4) in body (11).
4. expansion of balloon catheter as claimed in claim 2, it is characterised in that sacculus (4) front end and second body
(12) the part that is connected is provided with developing ring (5), the inside closing of the conduit in developing ring (5) the cladding region.
5. expansion of balloon catheter as claimed in claim 1, it is characterised in that the remote operating portion (3) of the conduit (1)
Side sets tip catheter (23), and second seal wire (22) is extended in the tip catheter (23), second seal wire
(22) distance for being located at end and the tip catheter (23) top in the tip catheter (23) is 0.5mm-2mm.
6. expansion of balloon catheter as claimed in claim 1, it is characterised in that the remote operating portion (3) of the conduit (1)
Side sets tip catheter (23), and second seal wire (22) extends the tip catheter (23) away from the operating portion (3)
Outside, the part outside positioned at the tip catheter (23) of second seal wire (22) is arranged to orbicule structure (6).
7. expansion of balloon catheter as claimed in claim 1, it is characterised in that the operating portion (3) includes Handheld Division (31), institute
State conduit (1) and be arranged in the Handheld Division (31) inside, form the fluid passage for being communicated in the sacculus (4) inner chamber.
8. expansion of balloon catheter as claimed in claim 7, it is characterised in that revolved provided with two-way the rear end of the Handheld Division (31)
Fill in (32), cock through hole is provided with the plug of the two-way cock (32), when the cock through hole and the pipe of the conduit (1)
When mouth is coaxial, the fluid passage is opened；When the cock through hole is vertical with the mouth of pipe of the conduit (1), the liquid is closed
Body passage.
9. expansion of balloon catheter as claimed in claim 1, it is characterised in that the conduit (1) of sacculus (4) rear end is outside
Side face is provided with graduation mark.
10. expansion of balloon catheter as claimed in claim 7, it is characterised in that the rear end of the operating portion (3) is provided with external screw thread
(33), the external screw thread (33) can be socketed cap nut (35), and the cap nut (35) is as the connect-disconnect structure and described first
The rear end of seal wire (21) is connected, and first seal wire (21) can be extracted by dismantling the cap nut (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963270.6A CN107596539B (en) | 2017-10-17 | 2017-10-17 | Balloon dilatation catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963270.6A CN107596539B (en) | 2017-10-17 | 2017-10-17 | Balloon dilatation catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107596539A true CN107596539A (en) | 2018-01-19 |
| CN107596539B CN107596539B (en) | 2020-01-03 |
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ID=61077145
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710963270.6A Active CN107596539B (en) | 2017-10-17 | 2017-10-17 | Balloon dilatation catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107596539B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108652612A (en) * | 2018-05-10 | 2018-10-16 | 成都维信电子科大新技术有限公司 | A kind of disposable manometry in rectum foley's tube |
| CN108937833A (en) * | 2018-08-28 | 2018-12-07 | 苏州市倍咏医疗科技有限公司 | A kind of visual ureteroscope dilating sacculus and its application method |
| CN109481828A (en) * | 2018-12-27 | 2019-03-19 | 肖恒军 | A kind of novel seal wire and its application |
| CN109966627A (en) * | 2019-03-27 | 2019-07-05 | 深圳市擎源医疗器械有限公司 | Foley's tube |
| WO2019205409A1 (en) * | 2018-04-27 | 2019-10-31 | 武汉佑康科技有限公司 | Balloon device for visible puncture |
| WO2019205408A1 (en) * | 2018-04-27 | 2019-10-31 | 武汉佑康科技有限公司 | Movable balloon device for executing visible puncture |
| WO2020125542A1 (en) * | 2018-12-20 | 2020-06-25 | 上海微创医疗器械（集团）有限公司 | Balloon, balloon connecting structure and balloon device |
| CN111588971A (en) * | 2020-06-03 | 2020-08-28 | 刘卫辉 | Appendix intubator |
| TWI725903B (en) * | 2020-08-04 | 2021-04-21 | 賴銘曉 | Fluid pressure gun device for balloon catheter |
| CN112788989A (en) * | 2018-10-05 | 2021-05-11 | 阿克拉伦特公司 | Dilation instrument with malleable guide and dilation catheter with integral position sensor |
| CN113082469A (en) * | 2021-04-15 | 2021-07-09 | 深圳泰睿仕医疗科技有限公司 | Ureter sacculus expansion pipe external member |
| CN114668956A (en) * | 2020-12-24 | 2022-06-28 | 赖铭晓 | Fluid pressure gun device of balloon catheter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019205409A1 (en) * | 2018-04-27 | 2019-10-31 | 武汉佑康科技有限公司 | Balloon device for visible puncture |
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| CN112788989A (en) * | 2018-10-05 | 2021-05-11 | 阿克拉伦特公司 | Dilation instrument with malleable guide and dilation catheter with integral position sensor |
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| CN109481828A (en) * | 2018-12-27 | 2019-03-19 | 肖恒军 | A kind of novel seal wire and its application |
| CN109481828B (en) * | 2018-12-27 | 2024-04-12 | 肖恒军 | Novel guide wire and application thereof |
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| TWI725903B (en) * | 2020-08-04 | 2021-04-21 | 賴銘曉 | Fluid pressure gun device for balloon catheter |
| CN114668956A (en) * | 2020-12-24 | 2022-06-28 | 赖铭晓 | Fluid pressure gun device of balloon catheter |
| CN113082469A (en) * | 2021-04-15 | 2021-07-09 | 深圳泰睿仕医疗科技有限公司 | Ureter sacculus expansion pipe external member |
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Address after: 201210 east of 1st and 2nd floors, building 7, No. 150 Cailun Road, Pudong New Area, Shanghai Patentee after: Shanghai innova Medical Instrument Co.,Ltd. Address before: 201210 east of 1st and 2nd floors, building 7, No. 150 Cailun Road, Pudong New Area, Shanghai Patentee before: INNOVEX MEDICAL Co.,Ltd. |