CN110339456A - Sacculus dilating catheter and its sacculus - Google Patents

Sacculus dilating catheter and its sacculus Download PDF

Info

Publication number
CN110339456A
CN110339456A CN201910775996.6A CN201910775996A CN110339456A CN 110339456 A CN110339456 A CN 110339456A CN 201910775996 A CN201910775996 A CN 201910775996A CN 110339456 A CN110339456 A CN 110339456A
Authority
CN
China
Prior art keywords
sacculus
balloon
tapering
tip
balloon body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910775996.6A
Other languages
Chinese (zh)
Inventor
范青青
高艺
文欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Becton Dickinson and Co filed Critical Becton Dickinson and Co
Priority to CN201910775996.6A priority Critical patent/CN110339456A/en
Publication of CN110339456A publication Critical patent/CN110339456A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • A61M25/104—Balloon catheters used for angioplasty
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1027—Making of balloon catheters
    • A61M25/1029—Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril
    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • 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
    • A61M25/1029—Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril
    • A61M2025/1031—Surface processing of balloon members, e.g. coating or deposition; Mounting additional parts onto the balloon member's surface
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1075—Balloon catheters with special features or adapted for special applications having a balloon composed of several layers, e.g. by coating or embedding
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1079—Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1088—Balloon catheters with special features or adapted for special applications having special surface characteristics depending on material properties or added substances, e.g. for reducing friction
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1093—Balloon catheters with special features or adapted for special applications having particular tip characteristics
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/1078—Urinary tract
    • A61M2210/1082—Kidney

Abstract

The present invention relates to sacculus dilating catheter and its sacculus.A kind of sacculus for sacculus dilating catheter, along sacculus axially include balloon body, balloon body two sides sacculus tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering are radially made of multiple polymeric layers in sacculus, it is characterized in that, balloon tip includes metal.

Description

Sacculus dilating catheter and its sacculus
Technical field
The present invention relates to sacculus dilating catheter and its sacculus, effective expansion as such as Percutaneous nephrolith-otomy (PCNL) is filled It sets.Especially, the present invention relates to the sacculus dilating catheters and its sacculus convenient for identification.
Background technique
Sacculus dilating catheter is now widely used in many fields, including blood vessel dilatation, placement bracket and creation kidney stone Remove channel etc..
Two most important performances of sacculus dilating catheter are high burst pressure and distal end localizability.
Distal end localizability:
For doctor, determine that balloon distal position and sacculus active component are very heavy in the case where unexpected wounded patient It wants, preferably to treat.
Such as Percutaneous nephrolith-otomy, if being blind puncture in expansion program, this can bring puncture to lose Lose or damage the high risk of kidney essence.Therefore, surgeon urgently demand can see by medical image method through leather jacket (especially distal portion) is set, to reduce the risk in puncture process.In the U.S., a kind of measure of visual PCNL is: in X-ray Under perform the operation, so as to see the device part with X-ray impermeability in the picture.It is well known that X-ray It radiates harmful to the health of patient and doctor.In addition, radioscopic image is actually shown two-dimensional structure, rather than three-dimensional structure, To bring difficulty to confirmation device paracentesis depth.
In the market in most of sacculus dilating catheter, distal end is checked by fluoroscopy non-ultrasonic.? China, most of doctor are ready to perform the operation under B-ultrasound.However, it is difficult in the course of surgery by ultrasonic wave come Medical device is positioned, this will lead to patient and injures unexpectedly evil.Some doctors inject ultrasonic contrast into balloon body during surgery Agent is to be detected.But balloon distal still cannot be visual.
Therefore, be increasingly required ultrasonic Detection Method help under carry out PCNL, doctor and medical device factory Quotient have noticed the safer medical image measure of a kind of couple of patient and the radiationless harm of doctor.With echogenicity Device can be shown as area pellucida, be easy to see in gray scale ultrasound wave image.
Reecho device is revealed as bright shadow in the gray scale image that B ultrasound instrument grabs, allow an operator to from The lightness difference between medical device and surrounding tissue is distinguished in image.The key factor for obtaining bright shadow is that probe can be from device table Face receives more backscatterings.In order to design the surface with higher backscattering, tissue and surfaces of medical devices it Between creation have acoustic impedance difference (Z) interface, so that high frequency ping can be reflected.For theoretically, interface it is higher Acoustic impedance difference should be such that 180 ° of reflections are more, and the echogenicity detected is better.Such as equation Z=ρ × v institute Show, Z is the product of density of material and sound wave propagation rate within this material.Due to the balloon dilatation catheter in kidney during PCNL Surrounding tissue and environment are the cortex renis filled with physiological saline and renal plevis, therefore the surface of reecho balloon dilatation catheter should Compared with cortex renis and renal plevis there is significant density variation and sound wave to pass through speed difference.
Effective mode is creation gas-solid interface or liquid-solid boundary, because there is density variation harmony speed difference between them It is different.In a variety of materials, the Z value of air is extremely low, and the Z value of metal is all higher than any polymer and liquid.Therefore, there are several ways It is different come the Z value difference that increases interface, such as the processing of integrated metal material, patterned surface or the captured gas on apparatus surface.
United States Patent (USP) US2014/0243845A1 discloses a kind of double-walled balloon conduit, including by 50%-85% metal A reecho layer or sleeve made of material and mixed with polymers.United States Patent (USP) US2013/0053770A1 also discloses one Kind has at least two layers of foley's tube, wherein one layer is made of the mixture of 80% tungsten and 20% polymer.
United States Patent (USP) US2012/0277586A1 discloses a kind of reecho service pipe, has the pipe shaft in balloon interior The metal sleeve of upper setting, multiple inner sleeves or winding band or looping silk on pipe shaft.US20080058702A1 is disclosed Winding band or the band with textured surface are tied with catheter tube.Metalwork can also with sandblasting, physical deformation or machine into Row processing, to improve echogenicity with surface roughness.
US2008/0097213A1, US20150165160A1, US5967988, US5490521A disclose anti-for echo Penetrate the various patterned surfaces of conduit and biopsy forceps.These patterns include spherical shape on drainage catheter or hemispherical-shaped aperture, are inserting Metalwork is embedded in the recess with different angle of laser processing, in the catheter main body being perfused for coronary sinus in pipe surface Bump or other shapes.
The some examples for carrying out reecho improvement using gas, bubble or fluid are as follows.WO2007/102909A2 is disclosed A kind of reecho by adding polymer fluid hole in balloon body blocks sacculus.US6106473 and WO98/ 19713 disclose with bulk gas/non-pneumatic interface porous polymer coating, this is by physical agitation and can to release Deflation body or H2Built-up or only volatile solvent the volatilization of chemical reaction between the blending constituent of O is built-up. US6506156B1 discloses reecho coating, has multiple holes or glass microsphere particle.
High burst pressure:
Some materials can be visually under ultrasonic wave.However, it is difficult under high pressure these materials well with Balloon tip (also referred to as neck) combines.If directly manufacturing balloon tip with these materials, sacculus dilating catheter Burst pressure will substantially reduce.
Currently, not yet sufficiently developing the ultrasonic equipment and ultrasonic wave for so accurately detecting target as X-ray Technology, for complicated detection environment.Since kidney stone generally has high ultrasonic echo signal (such as percutaneous Kidney mirror art), therefore be difficult to distinguish balloon tip and calculus under ultrasonic wave, even if balloon tip is returned with superb sound It is also such that the material of acoustical signal, which is made,.
Other problems
During surgery, especially intervention procedures, are difficult to measure the size of affected areas, for example, Aneurysmal neck size or Kidney stone size.Sometimes, it is critically important to understand these information by doctor.
In addition, the only a part of balloon body is inserted into patient's body for certain operations (such as Percutaneous nephrolith-otomy) It is interior.Doctor's inconvenience detects by an unaided eye insertion depth, so that correct placement medical device and unexpected injury can not be may cause.
Summary of the invention
Present invention seek to address that at least one above-mentioned problem.
According to an aspect of the present invention, the design of special balloon tip facilitates to identify sacculus (including the design to shape) Tip.
According to another aspect of the present invention, the design of special balloon body also contributes to identification balloon body.
According to another aspect of the invention, scale designation is added on sacculus will be helpful to doctor and detects by an unaided eye be inserted into depth Degree, so that correct placement medical device is without causing unexpected injury.By the sacculus with scale designation close to affected areas It places, helps to measure affected areas size.
According to an aspect of the present invention, a kind of sacculus for sacculus dilating catheter is provided, axially includes ball along sacculus Capsule main body, balloon body two sides sacculus tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, sacculus Main body and sacculus tapering are radially made of multiple polymeric layers in sacculus, which is characterized in that balloon tip includes metal.
According to an embodiment, balloon tip is made of metal completely.
According to an embodiment, multiple recesses are formed on metal balloon tip.
According to an embodiment, balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymer Layer is constituted, and is coated with metal sleeve or covering on balloon tip.
According to an embodiment, metal sleeve or covering pass through roughness meter surface treatment.
According to an embodiment, it is surface-treated as sandblasting, physical deformation or machining.
According to an embodiment, balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymer Layer is constituted, and balloon tip is equipped with multiple axially spaced and circumferentially extending ferrule band.
According to an embodiment, metal sacculus tip end surface carries out patterned process, to form rectangular array, triangle battle array Column, hemispherical array, diamond shape array, cylindrical array or the multiple parallel slots extended in a circumferential direction.
According to an embodiment, patterned metal sacculus tip end surface is coated with heat-shrinkable polymeric object covering.
According to an embodiment, balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymer Layer is constituted, and balloon tip is tied with metallic fiber.
According to an embodiment, metal reecho layer is provided under the outermost polymeric layer of sacculus.
According to an embodiment, metal reecho layer includes metal multiple axially spaced and along sacculus circumferentially extending Band.
According to an embodiment, the multiple polymeric layer includes polymeric binder layer, is mixed in polymeric binder layer Close metal powder.
According to an embodiment, the multiple polymeric layer includes polymeric binder layer, the shape in polymeric binder layer At having bubble or hole.
According to an embodiment, balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymer Layer is constituted, and integrated metal ring is equipped on balloon tip, has the reciprocal multiple circumferentially extendings of opening direction logical in ring body Through groove, they are axially apart from one another.
According to an embodiment, balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymer Layer is constituted, and integrated metal ring is equipped on balloon tip, has the penetrating slot of continuous helical in ring body.
According to an embodiment, balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymer Layer is constituted, and integrated metal ring is equipped on balloon tip, has multiple axially aligned windows, adjacent every two row in ring body Window offsets one from another in the circumferential.
According to an embodiment, the scale designation that can be reflected ultrasonic wave is printed on balloon body outer surface.
According to an embodiment, first scale designation and scale designation and other scale designations every certain interval Shape is different.
According to an embodiment, the initial position of scale designation may begin at balloon distal tapering, or start from away from balloon tip At a certain distance from.
On the other hand according to the application, it provides a kind of sacculus dilating catheter, including sacculus as described above and passes through ball The conduit in intracapsular portion.
Detailed description of the invention
According to the description below with reference to attached drawing to exemplary embodiment, other features of the invention be will be apparent.
Fig. 1 shows the metal tip of reecho sacculus；
Fig. 2 shows the jagged reecho balloon tips of tool；
Fig. 3 shows the reecho balloon tip with metal sleeve or covering；
Fig. 4 shows surface treated reecho balloon tip；
Fig. 5 shows the reecho balloon tip with multiple ferrule bands；
Fig. 6 A, 6B, 6C show the reecho balloon tip with various patterned surfaces；
Fig. 7 A shows the cross-sectional view of the sacculus of the prior art, and Fig. 7 B shows according to the present invention with ferrule band The cross-sectional view of reecho sacculus；
Fig. 8 shows the reecho balloon tip for being equipped with multiple reecho rings；
Fig. 9 A (side view), 9B (end-view), 9C (perspective view) show a reality of integrated combined type reecho ring Apply example；
Figure 10 A (side view), 10B (end-view), 10C (perspective view) show the another of integrated combined type reecho ring A embodiment；
Figure 11 A (side view), 11B (end-view), 11C (perspective view) show the another of integrated combined type reecho ring A embodiment；
Figure 12 shows an example of balloon body scale designation；
Figure 13 shows another example of balloon body scale designation.
Specific embodiment
Hereinafter, embodiment according to the present invention will be described with reference to the drawings.Reecho sacculus dilating catheter is echo One example of medical device, such as perform the operation for percutaneous nephrolithy.However, it should be noted that the example of echo medical device is not It is limited to this.According to the difference of concrete application purposes, echo medical device can be other medical treatment known to those skilled in the art Device, such as abdomen medical device, gynicologycal medical device, heart medical device etc..
Embodiment described below is intended only as specific example.However, the present invention is not limited to implement described in specification Example.
Generally speaking, as shown in Figure 1, showing the sacculus for sacculus dilating catheter.Sacculus includes the sacculus master of tubular Body 1, balloon body two sides sacculus tapering 2 and extend from tapering and be fixed to supravasal balloon tip (or sacculus neck Portion) 3, converged between balloon body and sacculus tapering by 4 phase of sacculus shoulder.
Reecho sacculus with reecho tip
More particularly it relates to the reecho tip of sacculus.Sacculus with reecho tip can be from week It encloses and is identified in the physiological saline injected in tissue and renal plevis.The present invention can enhance the sound between balloon tip and ambient enviroment Resistance difference.
Embodiment 1: the reecho sacculus with metal tip
As shown in Figure 1, the balloon distal tip 3 being connected with sacculus tapering can be made of metal material.Metal is than organ group Knitting has higher acoustic impedance values (Z value) with organ liquid, facilitates the interface that building has significant Z value difference different.Applicable gold Belonging to includes but is not limited to titanium, platinum, stainless steel, they have excellent bio-compatibility, can be used for processing metal tube.Pass through welding Or metal tip is connected to sacculus tapering by bonding.Metal surface enhances sound wave and reflects back into ultrasonic probe.
It is further to improve as shown in Fig. 2, the hemisphere that diameter is 20-50 μm is made of laser ablation on balloon tip Shape recess (is not limited to hemispherical, be also possible to other shapes), this will enhance reecho, because enhancing dissipating backwards for sound wave It penetrates.
Embodiment 2: the reecho balloon tip with metal sleeve or covering
As shown in figure 3, the sleeve or covering on balloon tip can improve the echogenicity of balloon tip, this be because It is increased for the acoustic impedance difference at interface.The advantages of metal sleeve is to be easy to be bonded with glue.It can choose with a thickness of 0.01- Titanium, platinum or the goldleaf of 0.05mm, because these metals with this thickness are sufficiently flexible to be coated on balloon tip.It can be with Using all metals with good flexibility.Titanium, platinum or the golden pipe that wall thickness is 0.02-0.05mm are preferably as having this The pipe of wall thickness is sufficiently rigid to form sleeve.
What the US2014/0243845A1 and US2013/0053770A1 mentioned in background technique was directed to be polymer and Metal powder composite layer needs to add high level metal to reach the ultrasonic development of polymer/metal powdered compound Powder leads to the ductility reduction of compound, and extrusion molding is highly difficult, to combine extrusion molding feasibility, the gold of addition The content for belonging to powder is limited, to limit the ultrasonic development of the composite layer.The present embodiment uses on balloon tip surface The metal foil or sleeve of entity, this will increase acoustic impedance difference with polymer phase ratio, and manufacturing process is more simplified.
For the US2012/0277586A1 mentioned in background technique, integrated metal is for reecho on inner pipe Property be unable to say for certain because sound wave in the first reflected at interfaces reached or scattering and balloon wall and will fill in sacculus Medium caused by decaying will weaken reflection on an internal surface.The present embodiment between tissue and balloon tip first Hardware is provided at interface (that is, interface that ultrasonic wave arrives first at) position, is not had as caused by other media in this way Decaying, so that the probability for reflecting sound wave is bigger.
Fig. 4 shows further improvement.With the sandblasting of 60-120 mesh or physical deformation or machining metal sleeve or The roughness with a few micrometers to some tens of pm is processed on the surface of covering, can further improve echogenicity, because changing It has been apt to the backscattering of sound.
Embodiment 3: the reecho balloon tip with multiple ferrule bands
As shown in figure 5, being bonded on coiling direction (i.e. circumferencial direction) on balloon tip and axially spaced more A ferrule band can improve the echogenicity at tip, because the interface between metal and ambient enviroment has big acoustic impedance Difference.Metal can be titanium, platinum, gold, stainless steel or other metals with excellent bio-compatibility.On balloon tip surface Bonding band is easy to, and ferrule band need to be only bonded on balloon tip with glue, and either densely cementing is also It is discontinuously cementing.Such balloon tip can improve identifiability, because the band of bonding can be in ultrasonography In be revealed as light and shade interval.Band thickness range can be set as 0.01-0.05mm, width range 0.7-2mm, between band Between be divided into 0.5-2mm.
Embodiment 4: the reecho balloon tip with patterned surface
There is certain pattern in metal sacculus tip end surface.
In addition, patterning balloon tip surface can also be coated with heat-shrinkable polymeric object covering, due on patterned surface Air gap thus air can be trapped between balloon tip surface and polymer, formed air/polymer interface, the interface With very loud resistance difference, to improve echogenicity.
Patterned surface can be realized by machining on final metal balloon tip, be included in balloon tip molding Laser lithography, etching, punching press or ball milling are carried out later.As shown in Fig. 6 A, 6B, 6C, picture on surface can be any shape, such as Rectangular array, triangular array, hemispherical array, diamond shape array, cylindrical array extend multiple flat in a circumferential direction Row slot etc..
US2008/0097213A1, US20150165160A1, US5967988, the US5490521A mentioned in background technique Although disclosing various patterned surfaces, unused hydrophobic coating or covering protect pattern, cannot prevent tissue fluid or blood Liquid penetrates into and forms polymer/liquid surface in pattern, rather than air/polymer interface, and polymer/liquid surface is to ultrasound The albedo of wave is much smaller than air/polymer interface to the albedo of ultrasonic wave.In particular, US5967988 discloses one The complicated method of kind is protected pattern using additional inner cavity, but is also not and is protected using covering.
Embodiment 5: it is wrapped with the echo balloon tip of metallic fiber
According to this embodiment, echo balloon tip is tied with metallic fiber.Advantage is, on the one hand with polymer surfaces and surrounding Interface between tissue is compared to provide has more acoustic impedance value difference different between metallic fiber surface and surrounding tissue On the other hand interface is irregularly arranged by metallic fibrous layer and provides rough irregular surface.Fiber cross section is in Round or rectangle, and diameter is 0.05-0.5mm (circle) or side length is 0.01-0.05mm and 0.05-0.25mm.Metal includes But it is not limited to silver, platinum, gold, stainless steel or silver-stainless steel composite material.It can be used with good biological compatibility and can be extruded into Type is any metal of fiber.The US20080058702A1 that background technique is mentioned disclose be tied with catheter tube winding band or Band with textured surface, but be not disclosed on balloon tip.
Sacculus with reecho main body and tapering
The invention further relates to the reecho sacculus with reecho balloon body and sacculus tapering, are used for percutaneous nephrolithy Art.
US7309324B2 and US9114236B2 discloses non-compliance fabric sacculus.As shown in Figure 7 A, show as one Example, the sacculus of the prior art can be made up of multiple layers, including polymeric substrate layers 10, polymeric binder layer 11, polymer film 12, polymer fibres layers 13, polymer coating 14 and outermost polymer protective layer 15.But in the sacculus of the prior art, not Reecho element is set.
Referring to following non-limiting embodiment, reecho element can be added in sacculus according to the present invention, it is super to improve Sound wave echoes are reflexive.
Embodiment 1: the reecho sacculus with metal reecho layer
As shown in Figure 7 B, compared with prior art, metal reecho layer 16 is added to as polymer coating 14 and most Additional layer between outer polymer protective layer 15.As long as alternatively, providing metal reecho under the outermost layer of sacculus Layer.In addition, in this case, metal reecho layer includes multiple axially spaced and circumferentially extends along sacculus Band.The metal of band can include but is not limited to silver, gold, platinum, titanium or stainless steel etc., to provide the sound wave reflection of enhancing.It can Using any metal with good biological compatibility.It is that can use in the advantages of ferrule band in balloon body or tapering Make scale designation, to indicate balloon position under ultrasonic diagnosis.Band on the region of sacculus tapering can indicate that sacculus is bored Whether portion is properly placed renal plevis, this judges whether expansion is effectively critically important for surgeon.The width of band in balloon body Preferably 0.8-3mm, the width of band is preferably 0.8-2mm on the region of sacculus tapering.
Embodiment 2: metal component is mixed into adhesive between the different layers
According to the present embodiment, can also in polymer adhesive mixed metal powder, be capable of increasing so entire compound The density of object.According to the present invention, for the polymer that polymer fibres layers 13 and outermost polymer protective layer 15 are bonding Coating 14 (also as an adhesive phase) or for the polymerization that polymeric substrate layers 10 and polymer film 12 are bonding Mixed metal powder in object adhesive phase 11, especially silver, titanium, Nitinol, bronze end, partial size are 1-10 μm, content 50- 80%, the density of entire sacculus is increased, to enhance the echogenicity in balloon body or tapering.
What the US2014/0243845A1 and US2013/0053770A1 mentioned in background technique was directed to be polymer and Metal powder composite layer needs to add high level metal to reach the ultrasonic development of polymer/metal powdered compound Powder leads to the ductility reduction of compound, and extrusion molding is highly difficult, to combine extrusion molding feasibility, the gold of addition The content for belonging to powder is limited, to limit the ultrasonic development of the composite layer.
Reecho material is mixed (such as with polymer material with before sacculus extrusion molding and blow molding US2013/0053770A1 is such, discloses the tungsten that 50-80% is added in a polymer matrix) it compares, it is mixed into adhesive The advantages of reecho material is to be easier.
Embodiment 3: bladdery reecho sacculus within the adhesive layer
According to the present embodiment, the expansion/volatilization effect also generated using poor solvent to solvent type adhesive is in sacculus Hole is generated in polymeric matrix layer.Specifically, by poor solvent volatilization can make adhesive phase (such as polymer coating 14 or Polymeric binder layer 11) expansion, solvent molecule penetrates into macromolecular chain, but insoluble macromolecular chain.Then, when solvent from When adhesive phase volatilizees, sacculus polymeric matrix layer below will irregularly be shunk, with formed it is irregular (such as it is concave-convex not It is flat) surface, to form reecho gas hole.Interface between polymer and gas orifice gap provides acoustic impedance, Help to improve echogenicity.
In addition, outermost polymer protective layer 15 can be omitted.In this case, polymer coating 14 can be viscous in itself Mixture.In this way, being conducive to avoid losing because of bond properties caused by forming hole.
It is some specific examples made according to above-described embodiment below:
1. the example of reecho balloon tip
1.1 in an example of reecho sacculus, and the balloon tip being connected with sacculus tapering is made of metal material, Specifically it is made of titanium.Titanium balloon tip is adhered on sacculus tapering.It is loud between titanium balloon tip and organ-tissue Resistance difference constructs the interface with big sound wave backscattering on tip, so that the lightness of titanium balloon tip increases.
The another way for improving metal sacculus spearhead echo reflectivity is to go out diameter with laser ablation on balloon tip For 45 μm of hemispheric notch.The echogenicity of balloon tip is also enhanced in this way.
1.2 can be arranged clad on balloon tip.Using the stainless steel foil and titanium foil with a thickness of 0.05mm, viscous Mixture helps lower covering balloon tip, enhances echogenicity.
Another way is to carry out blasting treatment to the titanium foil of thickness 0.05mm and the stainless steel foil of thickness 0.07mm, with shape It is the rough surface of 60-120 mesh at roughness.This coarse covering also enhances the echogenicity of balloon tip.
1.3 width are 1.0mm and the platinum with a thickness of 0.038mm, gold or silver-colored band are adhered to entire balloon tip periphery On.Due to enhancing sound wave backscattering, the lightness of entire balloon tip is improved.
1.4 use stainless steel-silver composite fibre looping balloon tip.Stainless steel-silver the composite fibre for being 0.076mm with diameter It is thickly wrapped on balloon tip as far as possible.The composite fibre of looping helps to substantially improve the echogenicity of balloon tip.
1.5 manufacture patterning balloon tip by machining.For example, one ring recess of machining.As a result, being improved Tip image identification, in slot region lightness enhancing.
2. reecho balloon body or the example in tapering
2.1 in balloon body bonded metal band specifically can be bonded golden band in the main body of sacculus or tapering and cover Cover entire tapering.Golden band is with a thickness of 10 μm, width 1mm.Improve the echogenicity in main body or tapering.
2.2 in balloon body bonded metal band specifically can be bonded golden band in the main body of sacculus or tapering and cover Cover entire tapering.Golden band is with a thickness of 30 μm, width 1mm.Improve the echogenicity in main body or tapering.
2.3 in balloon body bonded metal band specifically can be bonded golden band in the main body of sacculus or tapering and cover Cover entire tapering.Golden band is with a thickness of 10 μm, width 2mm.Improve the echogenicity in main body or tapering.
2.4 in balloon body bonded metal band specifically can be bonded golden band in the main body of sacculus or tapering.Gold Band with a thickness of 10 μm, width 1mm, and between each ferrule band between be divided into about 1mm.Improve time in main body or tapering Sound reflecting.
2.5 in balloon body bonded metal band specifically can be bonded golden band in the main body of sacculus or tapering.Gold Band with a thickness of 30 μm, width 1mm, and between each ferrule band between be divided into about 1mm.Improve time in main body or tapering Sound reflecting.
2.6 in balloon body bonded metal foil specifically can be bonded stainless steel foil on the tapering of sacculus or main body. Stainless steel foil is with a thickness of 0.02mm, width 1cm.Improve the echogenicity of tapering or main body.
2.7 in balloon body bonded metal foil specifically can be bonded titanium foil on the tapering of sacculus or main body.Titanium foil With a thickness of 0.05mm, width 1cm.Improve the echogenicity of tapering or main body.
Metal powder is mixed into 2.8 adhesive between the layers.Specifically, the silver powder that partial size is 6 μm is mixed into bonding In agent, content 50%.Improve the echogenicity in entire balloon body or tapering.
2.9 add a strata above the first polymer layer (that is, it needs to layer Nian Jie with the second polymer layer) of sacculus Urethane adhesive.Then, in polyurethane binder top coating dichloromethane or chloroform poor solvent thin layer, wave it Hair.Due to foring hole in the polymeric layer below adhesive phase, the echogenicity of sacculus is improved.
The various embodiments described above and example improve the echogenicity of balloon tip, sacculus tapering or balloon body.
According to the invention, it is further possible to improve the echogenicity of balloon tip by other variants below.
Multiple reecho rings are mounted on balloon tip with certain axially spaced-apart, it is easily fabricated in this way, and easily In progress ultrasound examination.
The material of manufacture reecho ring may is that the metal material for having carried out being surface-treated or be not surface-treated； The alloy material for being surface-treated or not being surface-treated is carried out；Be surface-treated or has not been surface-treated and is included The polymer material of microbubble；Or their combination.
Similar to the embodiment of Fig. 5, as shown in figure 8, reecho ring is mounted on the balloon tip on the outside of sacculus tapering, This facilitates the high burst pressure for ensuring sacculus, and the burst pressure of non-reduced sacculus.
Compared with single ring is mounted on balloon tip, since multiple reecho rings are installed with certain axially spaced-apart On balloon tip and the surface reflection of reecho ring material is stronger than the surface reflection of balloon tip material, therefore can obtain More reecho surfaces are obtained, so as to enhance the ultrasonic visible and detectability of balloon tip.In addition, in each ring Between in gap balloon tip material help to capture some air in use, this also contributes to the ultrasound of enhancing balloon tip It is visual.
On the other hand, due to clinical needs, balloon tip is usually designed to very short and small.Therefore, reecho ring is also answered The very little, in conjunction with balloon tip, and not too big the outer diameter and length for increasing balloon tip.However, it is difficult to more A ring is integrated on balloon tip with certain axially spaced-apart.It can solve this problem by integrated combined type reecho ring.
(1) as shown in Fig. 9 A (side view), 9B (end-view), 9C (perspective view), there is opening direction opposite each other in ring body The penetrating slot of multiple circumferentially extendings, they are axially apart from one another；
(2) as shown in Figure 10 A (side view), 10B (end-view), 10C (perspective view), there is continuous helical penetrating in ring body Slot；
(3) as shown in Figure 11 A (side view), 11B (end-view), 11C (perspective view), have in ring body multiple axially aligned Window, adjacent every two rows window offsets one from another in the circumferential.
For example, the specific design requirement of above-mentioned integrated combined type reecho ring can be such that
Ring body entity between opening has 2 to 5；
Ring body entity width between opening is 0.3-4mm；
Opening width is 0.5-2mm；
Ring thickness is 0.01-2mm.
Scale designation
According to another aspect of the present invention, the present invention relates to the scale designations printed on balloon body outer surface.
The scale designation is under fluoroscopy or ultrasonic examination as it can be seen that and also naked eyes are visible.
The scale designation can be used for measuring sacculus insertion depth, position the active component of balloon body and measure during surgery Affected areas.
Gap between each scale designation can be 1-20mm, for example, 10mm.
In order not to same application purpose, the initial position of scale designation may begin at balloon distal shoulder, to identify that sacculus has Imitate the position at position.Alternatively, also may begin at away from a certain distance from balloon tip, such as 5mm, with the unexpected wounded patient the case where Lower determining tube insertion depth.
For ease of identification, first scale designation and every certain interval (such as 50mm) scale designation with it is other The shape of scale designation is different, such as one thicker than another.
The material of scale designation can be the metal material for having carried out being surface-treated or be not surface-treated；Table is carried out Surface treatment or the alloy material not being surface-treated；Be surface-treated or has not been surface-treated and includes microbubble Polymer material；Or their combination.
Scale designation example 1:
As shown in figure 12, scale designation, first distally located sacculus of scale designation are added on balloon body outer surface At shoulder, the last one scale designation is located at nearside sacculus shoulder.Gap between each scale designation is 1cm.These scales It marks visible under fluoroscopy or ultrasonic examination.
The sum of scale designation is 16.The first, the six, the 11st and the 16th scale designations are more than other scale designations Slightly.
PCNL operation in, doctor can by under fluoroscopy or ultrasonic examination calculus size and these scale marks Note compares and measures calculus size.
In the aneurysm embolism operation using foley's tube, doctor can pass through the handle under fluoroscopy or ultrasonic examination Tumor neck size measures tumor neck size compared with these scale designations.
Scale designation example 2:
As shown in figure 13, scale designation is added on balloon body outer surface, first scale designation is away from balloon distal point 5mm is held, the last one scale designation is close to balloon body proximal end.Gap between each scale designation is 1cm.These scale designations It is visually visible.
The sum of scale designation is 12.The first, the six, the 11st scale designations are thicker than other scale designations.
In PCNL operation, doctor need to be put into sacculus internal suitable position, to avoid patient injury.Addition is in sacculus master Scale designation on external surface can be used as scale, to record sacculus insertion depth.Doctor can be with naked eyes sacculus and sacculus Conduit is inserted into internal certain depth.
Although describing the present invention by reference to exemplary embodiment it should be appreciated that the present invention is not limited to disclosed Exemplary embodiment, the various embodiments described above can combine in any way.The scope of the appended claims should assign most wide The explanation of justice, to cover all modifications and equivalent structure and function.

Claims (47)

1. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that balloon tip is made of metal completely.
2. sacculus according to claim 1, which is characterized in that be formed with multiple recesses on metal balloon tip.
3. sacculus according to claim 1, which is characterized in that metal sacculus tip end surface carries out patterned process, so as to It forms rectangular array, triangular array, hemispherical array, diamond shape array, cylindrical array or extends in a circumferential direction more A parallel slot.
4. sacculus according to claim 3, which is characterized in that patterned metal sacculus tip end surface is coated with thermal contraction Polymer.
5. sacculus according to claim 1, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
6. sacculus according to claim 5, which is characterized in that first scale designation and the scale every certain interval It marks different from the shape of other scale designations.
7. sacculus according to claim 5, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
8. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple Polymeric layer is constituted, and is coated with metal sleeve or covering on balloon tip.
9. sacculus according to claim 8, which is characterized in that metal sleeve or covering pass through roughness meter surface treatment.
10. sacculus according to claim 9, which is characterized in that be surface-treated as sandblasting, physical deformation or machining.
11. sacculus according to claim 8, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
12. sacculus according to claim 11, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
13. sacculus according to claim 11, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
14. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple Polymeric layer is constituted, and balloon tip is equipped with multiple axially spaced and circumferentially extending ferrule band.
15. sacculus according to claim 14, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
16. sacculus according to claim 15, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
17. sacculus according to claim 15, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
18. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, and balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple polymeric layer structures At, which is characterized in that balloon tip is tied with metallic fiber.
19. sacculus according to claim 18, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
20. sacculus according to claim 19, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
21. sacculus according to claim 19, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
22. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that metal reecho layer is provided under the outermost polymeric layer of sacculus.
23. sacculus according to claim 22, which is characterized in that metal reecho layer includes multiple axially spaced And along the ferrule band of sacculus circumferentially extending.
24. sacculus according to claim 22, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
25. sacculus according to claim 24, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
26. sacculus according to claim 24, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
27. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that the multiple polymeric layer includes polymeric binder layer, in polymer adhesive Mixed metal powder in layer.
28. sacculus according to claim 27, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
29. sacculus according to claim 27, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
30. sacculus according to claim 28, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
31. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that the multiple polymeric layer includes polymeric binder layer, in polymer adhesive Bubble or hole are formed in layer.
32. sacculus according to claim 1, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
33. sacculus according to claim 32, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
34. sacculus according to claim 32, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
35. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple Polymeric layer is constituted, and integrated metal ring is equipped on balloon tip, has the reciprocal multiple circumferential directions of opening direction in ring body Extend penetrating slot, they are axially apart from one another.
36. sacculus according to claim 35, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
37. sacculus according to claim 36, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
38. sacculus according to claim 36, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
39. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple Polymeric layer is constituted, and integrated metal ring is equipped on balloon tip, has the penetrating slot of continuous helical in ring body.
40. sacculus according to claim 39, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
41. sacculus according to claim 40, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
42. sacculus according to claim 40, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
43. a kind of sacculus for sacculus dilating catheter axially includes balloon body, the sacculus in balloon body two sides along sacculus Tapering and extend from sacculus tapering and be fixed to supravasal balloon tip, balloon body and sacculus tapering sacculus radially by Multiple polymeric layers are constituted, which is characterized in that balloon tip, balloon body and sacculus tapering are all in sacculus radially by multiple Polymeric layer is constituted, and integrated metal ring is equipped on balloon tip, has multiple axially aligned windows in ring body, adjacent Every two rows window offsets one from another in the circumferential.
44. sacculus according to claim 43, which is characterized in that being printed on balloon body outer surface can reflect ultrasonic wave Scale designation.
45. sacculus according to claim 44, which is characterized in that first scale designation and the ruler every certain interval Scale designation is different from the shape of other scale designations.
46. sacculus according to claim 44, which is characterized in that the initial position of scale designation may begin at balloon distal cone Portion, or start from away from a certain distance from balloon tip.
47. a kind of sacculus dilating catheter, including such as described in any item sacculus of claim 1-46 and leading across balloon interior Pipe.
CN201910775996.6A 2019-08-22 2019-08-22 Sacculus dilating catheter and its sacculus Pending CN110339456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910775996.6A CN110339456A (en) 2019-08-22 2019-08-22 Sacculus dilating catheter and its sacculus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910775996.6A CN110339456A (en) 2019-08-22 2019-08-22 Sacculus dilating catheter and its sacculus

Publications (1)

Publication Number Publication Date
CN110339456A true CN110339456A (en) 2019-10-18

Family

ID=68181018

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910775996.6A Pending CN110339456A (en) 2019-08-22 2019-08-22 Sacculus dilating catheter and its sacculus

Country Status (1)

Country Link
CN (1) CN110339456A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113577509A (en) * 2021-06-16 2021-11-02 上海脉全医疗器械有限公司 Medicine balloon
CN116963799A (en) * 2021-11-09 2023-10-27 株式会社钟化 Balloon catheter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040210210A1 (en) * 2002-12-31 2004-10-21 Abbott Laboratories Vascular Enterprises Limited Catheter and method of manufacturing same
CN104096307A (en) * 2014-06-21 2014-10-15 葛晖 Interventional cyst puncture needle
CN105764561A (en) * 2013-10-15 2016-07-13 波士顿科学国际有限公司 High pressure tear resistant balloon
CN108295360A (en) * 2017-01-13 2018-07-20 翎秀生物科技（上海）有限公司 A kind of medicine-coated balloon bracket component
CN110025873A (en) * 2018-01-12 2019-07-19 美敦力公司 A kind of sacculus dilating catheter of the lower developability of enhancing ultrasound
CN211884905U (en) * 2019-08-22 2020-11-10 贝克顿·迪金森公司 Balloon dilatation catheter and balloon thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040210210A1 (en) * 2002-12-31 2004-10-21 Abbott Laboratories Vascular Enterprises Limited Catheter and method of manufacturing same
CN105764561A (en) * 2013-10-15 2016-07-13 波士顿科学国际有限公司 High pressure tear resistant balloon
CN104096307A (en) * 2014-06-21 2014-10-15 葛晖 Interventional cyst puncture needle
CN108295360A (en) * 2017-01-13 2018-07-20 翎秀生物科技（上海）有限公司 A kind of medicine-coated balloon bracket component
CN110025873A (en) * 2018-01-12 2019-07-19 美敦力公司 A kind of sacculus dilating catheter of the lower developability of enhancing ultrasound
CN211884905U (en) * 2019-08-22 2020-11-10 贝克顿·迪金森公司 Balloon dilatation catheter and balloon thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113577509A (en) * 2021-06-16 2021-11-02 上海脉全医疗器械有限公司 Medicine balloon
CN116963799A (en) * 2021-11-09 2023-10-27 株式会社钟化 Balloon catheter
CN116963799B (en) * 2021-11-09 2024-04-05 株式会社钟化 Balloon catheter

Similar Documents

Publication Publication Date Title
US5081997A (en) Echogenic devices, material and method
JP6591895B2 (en) Acoustic tomography method
US20240033488A1 (en) Echogenic balloon dilation catheter and balloon thereof
JP5107931B2 (en) Echogenic needle catheter configured to generate improved ultrasound images
JP6342984B2 (en) Filter with echogenic properties
EP2091439B1 (en) Devices for creating passages and sensing for blood vessels
US20160022291A1 (en) Retrieval and centering device and method with pressure and ultrasound features
US10219887B2 (en) Filters with echogenic characteristics
US20150297807A1 (en) Devices and methods for treating fistulas
US20120123270A1 (en) Device with integrated ultrasound transducers and flow sensor
CN104755124B (en) For determining the tool of sheath pipe transfer
WO1992011889A1 (en) Acoustically enhanced catheter
EP1871234A2 (en) Forward looking imaging guidewire
WO2003059183A1 (en) Echogenic surface for enhanced ultrasonic visibility
JP2004097286A (en) Catheter
CN110339456A (en) Sacculus dilating catheter and its sacculus
WO2008020157A1 (en) Ultrasonic imaging of an elongate device penetrating an object
CN106456945B (en) Image-guided therapy catheter with drug eluting balloon
JPWO2016031071A1 (en) Medical catheter
JP2023505114A (en) Marker element for marking tissue
CN115038383A (en) Electromagnetic radiation cured radiopaque markers and related devices, systems, and methods
WO2008062451A2 (en) Echogenic surface for surgical instrument
US20160022292A1 (en) Retrieval and centering device and method with pressure and ultrasound features

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination