CA2189135C - Thin wall catheter having enhanced torqueability characteristics - Google Patents

Thin wall catheter having enhanced torqueability characteristics Download PDF

Info

Publication number
CA2189135C
CA2189135C CA002189135A CA2189135A CA2189135C CA 2189135 C CA2189135 C CA 2189135C CA 002189135 A CA002189135 A CA 002189135A CA 2189135 A CA2189135 A CA 2189135A CA 2189135 C CA2189135 C CA 2189135C
Authority
CA
Canada
Prior art keywords
tubular body
outer layer
peba
range
weight
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.)
Expired - Fee Related
Application number
CA002189135A
Other languages
French (fr)
Other versions
CA2189135A1 (en
Inventor
Byung H. Ju
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.)
Schneider USA Inc
Original Assignee
Schneider USA Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22926612&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2189135(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schneider USA Inc filed Critical Schneider USA Inc
Publication of CA2189135A1 publication Critical patent/CA2189135A1/en
Application granted granted Critical
Publication of CA2189135C publication Critical patent/CA2189135C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/04—Macromolecular materials
    • A61L29/049—Mixtures of macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/04—Macromolecular materials
    • A61L29/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/18—Materials at least partially X-ray or laser opaque
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
    • 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
    • A61M2025/0098—Catheters; Hollow probes having a strain relief at the proximal end, e.g. sleeve
    • 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
    • A61M25/0069—Tip not integral with tube

Abstract

A diagnostic catheter (10) comprises a tubular body (12) having an inner layer (28) of 100 percent polyamide over which is a braided metal wire sleeve (30) and an outer layer (32) formed as a blend of either the polyamide and PEBA along with a suitable radiopaque filler or, alternatively, a blend of PEBA having different durometers. Affixed either directly to the end of the above tubular body (12) or to a stem member (34) secured to that tubular body (12) is a soft-tip (40) formed from a blend of PEBA whose hardness is such that the catheter (10) can be considered as having an atraumatic tip. The resulting catheter (10) exhibits excellent torque and column strength characteristics while providing a relatively large diameter lumen for a given outside diameter.

Description

WO 95/31226 PCTlIB95I00120 THIN WALL CATHETER HAVING ENHANCED

TORQUEABILITY CHARACTERISTICS

~ackcrround of the Invention The present inventionrelates to intravascular -catheters, and more particularly to a diagnostic catheter having a relatively small outside diameter for its relatively large diameter internal lumen and which possesses excellent pushability and torqueability characteristics.

In evaluating the progress of coronary artery disease in patients, angiographyprocedures are used to view the patency of selected blood vessels. In carrying out this procedure, a diagnostic catheter having a desired distal end curvature configuration is introduced into the femoral artery using the Seldinger technique and advanced over a guide wire through the vascular system of the patient until the distal end of the catheter is steered into the particular coronary artery to be examined. With smaller patients, a brachial approach may be used.

In that the path taken by the diagnostic catheter is quite tortuous, it is essential to a good diagnostic catheter vnat it can be steered by tor.zuing its proximal hub and that the torgue be transmitted to the distal end in a smooth, controllable fashion. Moreover, the catheter must have sufficient strength in the longitudinal direction so as not to kink or fold as it is advanced through the vascular system. It must also possess a lubricous core lumen to facilitate passage of a guidewire or possibly another catheter therethrough.

It is also a desirable feature of a diagnostic catheter that it possess a relatively large lumen to allow fluids, such as radiopaque contrast fluid to be WO 95/31226 ~ PGT/d~B95100120 _2- . -injected therethrough-and out the distal end so that the area of-the vascular system under investigation can be viewed fluoroscopically.
The desirable properties of a catheter having a relatively small O.D. and a relatively large I.D.
dictates a fairly thin wall. To maintain the desired torqueability and pushability characteristics of-a i thin_wall catheter galls for considerable ingenuity in-the formulation of the materials employed and the constructional techniques utilized.
The Jang et al. U.S. Patent 4,898,591.-describes a diagnostic catheter having a tubular body-formed from inner and outer tubular layers, there being a strengthening braid interposed-between the-inner and outer layers. Each of the inner and outerlayera is formed from a blend of a nylon and an ester-linked polyether-polyamide copolymer., __ The present invention. is-deemed to be-an advance overthe prior art as represented by the Jang et al.
patent in that it provides a diagnostic catheter having a minimal O.D. and a maximal I.D. while still maintaining the necessary torqueability and-pushability characteristics. Using the method and the constituents for the various layers set forth herein, it has been possible to design a diagnostic catheter having, for example, a 4 Fr O.D. but with an internal lumen that is as large as the internal lumen of-a 5 Fr-catheter that is currently commercially available. Similarly, a 6-Fr catheter-made in accordance with the present invention possesses an internal lumen that is about equal to that of a I
commercially-available 7 Fr catheter.
Summarv of the Invention In accordance with the present invention there is provided an intravascular catheter comprising: an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyamide polymer; a reinforcing sleeve of braided filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance; an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall. thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French;
wherein said outer layer is a blend of Nylon-12 polyamide, said polyether block amide and further comprises a radiopaque filler; said blend comprising 19.3% by weight polyamide, 44.5%
by weight PEBA and 36% by weight BaS04 radiopaque filler and 0.2% by weight of a pigment. The unmodified polyamide polymer is preferably Nylon-12. As used herein, the term "unmodified polyamide polymer" refers to the fact that nothing is added to the polymer matrix that tends to substantially change its physical properties, such as copolymers, polymer blends, miscible polymers in relation to polyamide-based polymer matrices or polymer performance enhancers which would substantially change the physical properties of the polymer.
For instance, the fact that a colorant or a radiopaque filler material is added is not considered to be a modification.
Nylon-12 is hydrophobic meaning that it does not absorb moisture and swell.
The invention also provides an intravascular catheter comprising: an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular . . CA 02189135 2000-OS-09 body formed with an inner layer consisting essentially of an unmodified polyamide polymer; a reinforcing sleeve of filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance; an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French; said outer layer comprising a blend including 63.8% by weight 72D PEBA 36% BaS04 radiopaque filler and 0.2% by weight of a pigment.
The invention further provides an intravascular catheter comprising: an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyamide polymer; a reinforcing sleeve of filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance; an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French; said outer layer comprising a blend including 63.8% by weight 70D PEBA, 36% BaS04 radiopaque filler and 0.2% pigment.
Prefera~~ly affixed to the distal end of the tubular body member is a soft-tip member, which may be molded from a 4a blend of resins such that the soft tip exhibits a hardness that is less than about 45 Shore D.
The invention also provides an intravascular catheter comprising: an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyami3e polymer; a reinforcing sleeve of filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance; an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French; said outer layer comprising a blend of Nylon-12 polyamide, said. polyether block amide and further comprises a radiopaque filler; and a soft-tip member comprising a blend of 48.6% by weight 25D PEBA, 32.4% by weight 40D PEBA, 15% by weight BaSO~ radiopaque filler and 4% by weight Ti02 colorant.
The intravascular catheter may also incorporate a non-braided tubular stem member that is interposed between and bonded to both the tubular body and the soft-tip member. The stem member itself preferably comprises a single layer of a copolymer of polyamide and PEBA whose Shore hardness is in the range of from 25D to 72D. It may have a uniform or tapered outer diameter.
When attempts are made to thermally bond a soft-tip or a stem member to a braid-reinforced tubular body, the cut free ends of the wires comprising the braid may distort due to 4b heat and penetrate through the heat-softened wall of the tubular body either into the lumen or through the outer wall.
To obviate this pr~~blem, the catheter of the present invention generally incorpor;~tes a ring or band formed from a suitable metal or from a hi~~h temperature resistant plastic, such as polyimide sold under the trademark, KAPTON. This thin ring captures the ends ~~f the wires comprising the braid, preventing them from fraying ~~r otherwise distorting as a thermal bonding of a soft-tip or a tubular stem member takes place.
Description of the Drawings The fore~~oing features, objects and advantages of the invention will bec~~me apparent to those skilled in the art from the following detailed description of a preferred embodiment, especially when considered in conjunction with the accompanying drawings in which :Like numerals in the several views refer to corresponding parts.
Figure 1 is a perspective view of a diagnostic WO 95131226 2 T 8 913 5 p~/~g9510072D

catheter constructed in accordance with the present invention;
Figure 2 is a cross-sectional view of the catheter ofFigure 1 taken along the line 2-2;
Figure 3 is a cross-sectional view taken through the stem member of the catheter along the line 3-3 in Figure 1;
Figure 4 is a longitudinal cross-sectional view taken along the line 4-4 which passes through the joint between the tubular body stock and thestem member; and Figure 5 is a longitudinal cross-sectional view taken through the distal end portion of the catheter-along the line 5-5 in Figure 1.
Des~Yi~tion of the Pr fPr re EttIL'~n~-limont Referring first to Figure 1, there is indicated generally by numeral 10 a diagnostic catheter comprising the present invention. It includes an elongated tubular body 12 having a proximal end 14, a distal end 16 and a lumen 18 extending therebetween.
Affixed to the proximal end 14 of the tubular body 12 is a molded plastic hub 20 having a Luer fitting 22 at its proximal end and flared wings 24 projecting radially from the diametrically opposed aides thereof to facilitate twisting of the catheter. An elastomeric sleeve 26 surrounds the proximal end portion of the tubular body 12 and functions as a strain relief member. The sleeve 26 is. preferably roughened or knurled to facilitate gripping and rotation thereof using a three-finger catheter engagement. The length of the tubular body 12 will ~ typically be 3-1/2 to 4 feet in length and will have an outside diameter that is generally uniform over this length and will come in various sizes from, say, a 3 Fr to 8 Fr.

Referring to the cross-sectional view of Figure 2, it can be seen that the tubular body 12 is formed with an inner layer 28 which is preferably an unmodified polyamide, such as Nylon-12~. With this polyamide as the material for the inner layer 28, the surface defining the lumen 18 is inherently lubricous. Moreover, Nylon-12 is found not to absorb moisture and, hence, will not change in dimension when immersed in saline, body fluids and/or contrast media liquid. The inner layer 28 preferably has a wall thickness in the range of from 0.001 to 0.008 inch with 0.0025 ~ 0.0005 inch being preferred.
As can also be seen in the cross-sectional views of Figures 2 and 4, a braided sleeve of metal wires 30 is formed about the inner layer 28. More particularly, the inner layer 28 will typically be extruded over a polyacetal mandrel, and following extrusion, is braided using stainless steel braid wire. Any one of a number of braid patterns may be used including, without limitation, staggered 2-over-2-under or staggered 1-over-1-under. The braid angle may be adjusted to range anywhere from 20° to 60° from the perpendicular plane of the catheter. Again, without limitation, the braid wire diameter may fall in the range of from 0.0010 to 0.0030 inches.
As the wires are braided about the central inner layer 28, minor deformations occur at the point of contact between the braid wires and the Nylon-12 inner layer, creating tiny irregularities in the surface of the lumen 18. It is found that these irregularities reduce the effective wall contact area between, say, a guidewire or an angioplasty catheter that might be inserted through the lumen, thereby reducing friction still further than is provided by the lubricous nature of the Nylon-12 material itself.

Following the braided operation, an outer layer 32 is extruded onto the assembly. The outer layer may comprise polyether block amide (PEBA) of a predetermined durometer hardness in the range from about 50 Shore D to 75 Shore D and preferably contains a radiopaque filler, such as barium sulfate BaS04. As can be seen from the cross-sectional views of Figures 2 and 4, the outer layer 32 totally embeds the braided sleeve and the die used with the extruder will provide a predetermined wall thickness yielding an outer diameter to the tubular body that is selected to be anywhere in the range of from 3 Fr to 8 Fr. The lumen 18 is of a diameter in the range of from 0.026 to 0.080 inch and said outer layer has an outer diameter in the range of from 0.039 to 0.110 inch.
While the inner layer 28 of the catheter is preferably formed from 100% Nylon-12 polyamide, the outer layer may comprise a blend of polyether block amides that exhibit differing durometers to yield a catheter body having a desired stiffness characteristic or ~~feel~~. The outer layer 32 may also be a blend of polyamide and PEBA. Thus, for example, the outer layer may be a blend including, say, 63.8% by weight of a 72D PEBA having 36% BaS04 added as a radiopaque filler and 0.2%
by weight of a pigment to provide a desired color to the tubular body. As another example, the outer layer may comprise a blend of 19.3% by weight polyamide, 44.5% of 70D PEBA and 36%
by weight of BaS04 again with 0.2% by weight of a pigment added for color.
To provide a desired shape characteristic to the distal end portion of the diagnostic catheter, a tubular stem member 34 is thermally bonded to the distal end portion of the braided tubular body 12.

W0 95!31226 PCTIIB95/00120 ~~~9135 As is best seen in Figure 4, the braided tubular body ~ , has its outer layer or jacket 32 ground to a bevel as at 36. By beveling the distal end portion 16 of the tubular body 12, greater surface area-is provided=for effecting-attachment of the stem member 34_ In t2~at the grinding-operation used to create the bevel reduces the thickness of the outer jacket relative to the ends of the wires 30 comprising the braided sleeve, it has been found expedient to provide a band or ring 38 of a non-penetrable material surrounding the free ends of the braid wires.--Without uch a band, the heating required-to effect a thermal bond between the tubular body 12 and the jacket-34 can cause the-frayed ends of the braid to warp or bend to the point where they can penetrate through the inner layer 28 into the lumen 18 or through the thickness of the tubular stem 34. The band 38 confines those ends during heating, preventing such undesired-wall penetration. With no limitation intended, the band of non-penetrable material may comprise a metal, such as tantalum, titanium, iridium, gold, silver, stainless steel-and alloys of such materials.
I
Alternatively, a suitable high temperature polymers, such as pnlyimide, e.g., KAPTON, can be used to constrain the free ends of the braid wires from penetrating the interior or exterior wall of the catheter during thermal bonding re-flow procedures.
The stem member 34 may comprise a blend of PEBA
ranging from, say, 25D to 72D-with a polyamide, such I
I
as Nylon-12, along with a radiopague filler, e.g., barium sulfate, being added, along with a desired i pigment.
Completing the catheter is a soft-tip member 40 which may be bonded to the-distal end portion of the ~ wo 9srsizz6 2 i $ ~ , ~ 5 PCTl1895/00120 _g_ stem member 34. In forming the soft-tip on the catheter, a suitable low durometer (25D - 40D) PEBA
can be used. Alternatively, a PEBA blend with 15% to 45% by weight of radiopaque filler, such as BaS04, may be used. In particular, a resin blend consisting of 48.6.% 25D PEBA, 32.4% 40D PEBA, 15% BaS04 and 4%
TiOa pigment has been found to provide a soft, atraumatic tip. That tip may be formed by injection molding the material onto the distal end of the stem member 34. Alternatively, if the catheter is not designed to include a stem member, the soft-tip 4D
may be injection molded directly onto a distal end portion of the braided tubular body 12 with a impenetrable ring 38 again being used to confine the I5 braiding wire ends as the soft tip is being formed.
Using the above techniques, it has been possible to produce a 3 Fr O.D. catheter having a lumen with a diameter of 0.026 inches and which still possesses excellent torquing characteristics whereby the distal end of the catheter follows a rotation of its proximal end. Moreover, even with such a relatively large diameter lumen in comparison to its outer diameter, the catheter still has adequate column strength allowing it to be advanced through the vascular system without kinking or buckling. An S Fr diagnostic catheter constructed in accordance with the present invention may have a lumen as large as 0.076 inches, again having the desirable properties expected by most cardiologists as far as its ability to be manipulated through the application of longitudinal and rotational forces at the proximal end portion of the catheter.
Those skilled in the art will also appreciate that the intravascular catheter in accordance with wo 9smzzs 2 i ~ g ~ 3-r~ rc~r~9srooiao the present invention can be manufactured to havea variety of different distal end shaped configurations to suit the desires of different cardiologists. , Various modifications-and changes in detail may be made to the above-described embodiments and -examples without departing from the -spirit and scope of the-invention. It is therefore intended that all such matter as described and shown in the attached drawings be considered as illustrative only and not limiting. -What is claimed is:

Claims (13)

CLAIMS:
1. An intravascular catheter comprising:
an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyamide polymer;
a reinforcing sleeve of braided filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance;
an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French;
wherein said outer layer is a blend of Nylon-12 polyamide, said polyether block amide and further comprises a radiopaque filler;
said blend comprising 19.3% by weight polyamide, 44.5% by weight PEBA and 36% by weight BaSO4 radiopaque filler and 0.2%
by weight of a pigment.
2. An intravascular catheter comprising:
an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyamide polymer;
a reinforcing sleeve of filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance;
an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French;
said outer layer comprising a blend including 63.8% by weight 72D PEBA 36% BaSO4 radiopaque filler and 0.2% by weight of a pigment.
3. An intravascular catheter comprising:
an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyamide polymer;
a reinforcing sleeve of filaments, the filaments having opposed free ends and the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance;
an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French;
said outer layer comprising a blend including 63.8% by weight 70D PEBA, 35% BaSO4 radiopaque filler and 0.2% pigment.
4. An intravascular catheter comprising:
an elongated tubular body having a proximal end, a distal end and a lumen extending therebetween, said tubular body formed with an inner layer consisting essentially of an unmodified polyamide polymer;
a reinforcing sleeve of filaments, the filaments having opposed free ends end the braided sleeve surrounding said inner layer and extending from said proximal end of the tubular body toward the distal end of the tubular body by a predetermined distance;
an outer layer including a polyether block amide (PEBA) of a predetermined durometer hardness in the range of from about 50 Shore D to 75 Shore D, said outer layer at least partially covering said reinforcing sleeve and having a wall thickness providing an outer diameter to said tubular body in the range of from 3 French to 8 French;
said outer layer comprising a blend of Nylon-12 polyamide, said polyether block amide and further comprises a radiopaque filler; and a soft-tip member comprising a blend of 48.6% by weight 25D PEBA, 32.4% by weight 40D PEBA, 15% by weight BaSO4 radiopaque filler and 4% by weight TiO2 colorant.
5. The intravascular catheter of any one of Claims 1 to 4 and further including an annular soft-tip member bonded to said distal end of said tubular body member, said soft-tip member being molded from a blend of resins whereby said soft-tip exhibits a hardness less than about 45, Shore D.
6. The intravascular catheter as in Claim 5 and further including a tubular stem member interposed between and bonded to both said tubular body and said soft-tip member, said stem member being a copolymer of a polyamide and a polyether block amide whose Shore hardness is in the range of from 25D to 72D.
7. The intravascular catheter of any one of Claims 1 to 6 wherein said inner layer is of a 100 percent polyamide polymer having a wall thickness in the range of from about 0.001 to 0.008 inches.
8. The intravascular catheter as in Claim 7 wherein said wall thickness is 0.0025 inches.
9. The intravascular catheter as in any one of Claims 1 to 8 wherein said reinforcing sleeve is totally embedded between said inner layer and outer layer.
10. The intravascular catheter as in Claim 6 wherein said stem member includes a radiopaque filler material.
11. The intravascular catheter as in Claim 6 wherein said tubular body and said tubular stem member have the same outer diameter.
12. The intravascular catheter as in Claim 6 wherein said tubular stem member is tapered from a first outside diameter equal to the outside diameter of said tubular body at a junction between said tubular body and said tubular stem member to a lesser diameter.
13. The intravascular catheter as in any one of Claims 1 to 12 wherein said lumen is of a diameter in the range of from 0.026 to 0.080 inch and said outer layer has an outer diameter in the range of from 0.039 to 0.110 inch.
CA002189135A 1994-05-18 1995-02-27 Thin wall catheter having enhanced torqueability characteristics Expired - Fee Related CA2189135C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/245,428 US5403292A (en) 1994-05-18 1994-05-18 Thin wall catheter having enhanced torqueability characteristics
US08/245,428 1994-05-18
PCT/IB1995/000120 WO1995031226A1 (en) 1994-05-18 1995-02-27 Thin wall catheter having enhanced torqueability characteristics

Publications (2)

Publication Number Publication Date
CA2189135A1 CA2189135A1 (en) 1995-11-23
CA2189135C true CA2189135C (en) 2001-06-12

Family

ID=22926612

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002189135A Expired - Fee Related CA2189135C (en) 1994-05-18 1995-02-27 Thin wall catheter having enhanced torqueability characteristics

Country Status (8)

Country Link
US (3) US5403292A (en)
EP (1) EP0759788B1 (en)
JP (1) JP2950995B2 (en)
AT (1) ATE308351T1 (en)
AU (1) AU688858B2 (en)
CA (1) CA2189135C (en)
DE (1) DE69534565T2 (en)
WO (1) WO1995031226A1 (en)

Families Citing this family (228)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5769830A (en) * 1991-06-28 1998-06-23 Cook Incorporated Soft tip guiding catheter
AU2575992A (en) * 1991-09-12 1993-04-05 United States, as represented by Secretary Department of Health and Human Services, The Apparatus for and method of making ultra thin walled wire reinforced endotracheal tubing and product thereof
US6770066B1 (en) * 1992-05-11 2004-08-03 Ballard Medical Products Multi-lumen endoscopic catheter
US5961765A (en) 1994-09-20 1999-10-05 Schneider (Europe) A. G. Method of making a catheter
DK0650740T3 (en) * 1993-10-27 1999-12-20 Schneider Europ Gmbh intervention catheter
US6659977B2 (en) * 1993-10-27 2003-12-09 Schneider (Europe) A.G. Multilayer interventional catheter
US5571073A (en) * 1994-01-28 1996-11-05 Cordis Corporation Catheter flexible tip assembly
US5403292A (en) * 1994-05-18 1995-04-04 Schneider (Usa) Inc. Thin wall catheter having enhanced torqueability characteristics
US5496294A (en) * 1994-07-08 1996-03-05 Target Therapeutics, Inc. Catheter with kink-resistant distal tip
US5599305A (en) * 1994-10-24 1997-02-04 Cardiovascular Concepts, Inc. Large-diameter introducer sheath having hemostasis valve and removable steering mechanism
US5545151A (en) * 1994-11-22 1996-08-13 Schneider (Usa) Inc Catheter having hydrophobic properties
DE69421717T2 (en) * 1994-12-15 2000-03-16 Schneider Europ Gmbh catheter
DE69504104T2 (en) * 1995-01-04 1999-05-06 Medtronic Inc IMPROVED METHOD FOR PRODUCING A SOFT TIP
US6824553B1 (en) 1995-04-28 2004-11-30 Target Therapeutics, Inc. High performance braided catheter
US5658263A (en) * 1995-05-18 1997-08-19 Cordis Corporation Multisegmented guiding catheter for use in medical catheter systems
US5730733A (en) * 1995-06-01 1998-03-24 Scimed Life Systems, Inc. Flow assisted catheter
US6273404B1 (en) * 1995-06-05 2001-08-14 Scimed Life Systems, Inc. Method of making monolithic hub and strain relief
US6059738A (en) * 1995-06-30 2000-05-09 Meadox Medicals, Inc. Guidewire having a coated tip
US6103037A (en) * 1995-12-12 2000-08-15 Medi-Dyne Inc. Method for making a catheter having overlapping welds
US5772641A (en) * 1995-12-12 1998-06-30 Medi-Dyne Inc. Overlapping welds for catheter constructions
US5951929A (en) * 1995-12-12 1999-09-14 Medi-Dyne Inc. Method for forming a catheter having overlapping welds
US5836925A (en) * 1996-04-03 1998-11-17 Soltesz; Peter P. Catheter with variable flexibility properties and method of manufacture
US6053904A (en) * 1996-04-05 2000-04-25 Robert M. Scribner Thin wall catheter introducer system
US5800410A (en) * 1996-04-19 1998-09-01 Becton Dickinson And Company Catheter with stress distribution fingers
ATE327797T1 (en) 1996-04-26 2006-06-15 Schneider Europ Gmbh INTERVENTION CATHETER
US6042578A (en) * 1996-05-13 2000-03-28 Schneider (Usa) Inc. Catheter reinforcing braids
US5836926A (en) * 1996-05-13 1998-11-17 Schneider (Usa) Inc Intravascular catheter
US5851464A (en) * 1996-05-13 1998-12-22 Cordis Corporation Method of making a fuseless soft tip catheter
US5899892A (en) * 1996-05-31 1999-05-04 Scimed Life Systems, Inc. Catheter having distal fiber braid
US5836912A (en) * 1996-10-21 1998-11-17 Schneider (Usa) Inc. Catheter having nonlinear flow portion
US5755704A (en) * 1996-10-29 1998-05-26 Medtronic, Inc. Thinwall guide catheter
EP0850654A1 (en) 1996-12-20 1998-07-01 Schneider (Usa) Inc. Implantable device sensing catheter
US5791036A (en) * 1996-12-23 1998-08-11 Schneider (Usa) Inc Catheter transition system
US5879324A (en) 1997-03-06 1999-03-09 Von Hoffmann; Gerard Low profile catheter shaft
US6312374B1 (en) 1997-03-06 2001-11-06 Progenix, Llc Radioactive wire placement catheter
US5984908A (en) * 1997-04-10 1999-11-16 Chase Medical Inc Venous return catheter having integral support member
US6165166A (en) * 1997-04-25 2000-12-26 Schneider (Usa) Inc. Trilayer, extruded medical tubing and medical devices incorporating such tubing
US5911710A (en) * 1997-05-02 1999-06-15 Schneider/Namic Medical insertion device with hemostatic valve
BE1011161A5 (en) * 1997-05-20 1999-05-04 Medicorp R & D Benelux Sa APPLICATOR luminal stent.
US5938653A (en) * 1997-06-09 1999-08-17 Scimed Life Systems, Inc. Catheter having controlled flexibility and method of manufacture
DE69828004T2 (en) * 1997-08-22 2005-12-01 Schneider/Namic Catheter for the right coronary artery
US6217566B1 (en) * 1997-10-02 2001-04-17 Target Therapeutics, Inc. Peripheral vascular delivery catheter
US6077258A (en) * 1997-10-03 2000-06-20 Scimed Life Systems, Inc. Braided angiography catheter having full length radiopacity and controlled flexibility
US5908413A (en) * 1997-10-03 1999-06-01 Scimed Life Systems, Inc. Radiopaque catheter and method of manufacture thereof
US5891110A (en) * 1997-10-15 1999-04-06 Scimed Life Systems, Inc. Over-the-wire catheter with improved trackability
US6048338A (en) * 1997-10-15 2000-04-11 Scimed Life Systems, Inc. Catheter with spiral cut transition member
US6007478A (en) * 1997-11-13 1999-12-28 Impella Cardiotechnik Aktiengesellschaft Cannula having constant wall thickness with increasing distal flexibility and method of making
US6036682A (en) 1997-12-02 2000-03-14 Scimed Life Systems, Inc. Catheter having a plurality of integral radiopaque bands
US6066126A (en) * 1997-12-18 2000-05-23 Medtronic, Inc. Precurved, dual curve cardiac introducer sheath
US6402720B1 (en) * 1997-12-22 2002-06-11 Cordis Corporation Balloon catheter with elongated flexible tip
US5916209A (en) 1997-12-24 1999-06-29 Mick; Matthew J. Coronary catheters for use in a transradial catheterization
US9586023B2 (en) 1998-02-06 2017-03-07 Boston Scientific Limited Direct stream hydrodynamic catheter system
US7879022B2 (en) 1998-02-06 2011-02-01 Medrad, Inc. Rapid exchange fluid jet thrombectomy device and method
US6068622A (en) * 1998-02-10 2000-05-30 Medtronic Inc. Single piece hub/strain relief that can be injection molded over a shaft
US6113579A (en) 1998-03-04 2000-09-05 Scimed Life Systems, Inc. Catheter tip designs and methods for improved stent crossing
US6517515B1 (en) 1998-03-04 2003-02-11 Scimed Life Systems, Inc. Catheter having variable size guide wire lumen
US6068644A (en) * 1998-03-10 2000-05-30 Cordis Corporation Embolic coil hydraulic deployment system having improved catheter
US6063100A (en) * 1998-03-10 2000-05-16 Cordis Corporation Embolic coil deployment system with improved embolic coil
US6117142A (en) * 1998-03-10 2000-09-12 Cordis Corporation Embolic coil hydraulic deployment system with improved syringe injector
US6379374B1 (en) 1998-10-22 2002-04-30 Cordis Neurovascular, Inc. Small diameter embolic coil hydraulic deployment system
US6113622A (en) * 1998-03-10 2000-09-05 Cordis Corporation Embolic coil hydraulic deployment system
US6045547A (en) * 1998-06-15 2000-04-04 Scimed Life Systems, Inc. Semi-continuous co-extruded catheter shaft
US6171297B1 (en) 1998-06-30 2001-01-09 Schneider (Usa) Inc Radiopaque catheter tip
US6126650A (en) * 1998-06-30 2000-10-03 Cordis Corporation Flow directed catheter having radiopaque strain relief segment
US6152911A (en) * 1998-08-27 2000-11-28 Chase Medical, Inc. Venous return catheter having multiple helical support members
US6464684B1 (en) * 1998-09-09 2002-10-15 Scimed Life Systems, Inc. Catheter having regions of differing braid densities and methods of manufacture therefor
AU6056699A (en) * 1998-09-21 2000-06-05 Kwan-Ho Chan Surgical repair kit and its method of use
US6165165A (en) * 1998-10-02 2000-12-26 Genx International, Inc. Embryo-implanting catheter assembly and method for making the same
US6254612B1 (en) 1998-10-22 2001-07-03 Cordis Neurovascular, Inc. Hydraulic stent deployment system
US20020007145A1 (en) 1998-10-23 2002-01-17 Timothy Stivland Catheter having improved bonding region
US6102890A (en) * 1998-10-23 2000-08-15 Scimed Life Systems, Inc. Catheter having improved proximal shaft design
US6340368B1 (en) 1998-10-23 2002-01-22 Medtronic Inc. Implantable device with radiopaque ends
US6193705B1 (en) 1998-10-28 2001-02-27 Scimed Life Systems, Inc. Flow assisted catheter
US6245053B1 (en) * 1998-11-09 2001-06-12 Medtronic, Inc. Soft tip guiding catheter and method of fabrication
US6197015B1 (en) 1998-12-09 2001-03-06 Medi-Dyne Inc. Angiography catheter with sections having different mechanical properties
US6228073B1 (en) * 1998-12-15 2001-05-08 Medtronic, Inc. Angiography luer hub having wings proximal to the plurality of grips and strain relief
US6264630B1 (en) 1998-12-23 2001-07-24 Scimed Life Systems, Inc. Balloon catheter having an oscillating tip configuration
US6942654B1 (en) 2000-01-19 2005-09-13 Scimed Life Systems, Inc. Intravascular catheter with axial member
US6709429B1 (en) * 2000-01-19 2004-03-23 Scimed Life Systems, Inc. Intravascular catheter with multiple axial fibers
US6171295B1 (en) 1999-01-20 2001-01-09 Scimed Life Systems, Inc. Intravascular catheter with composite reinforcement
US6361557B1 (en) 1999-02-05 2002-03-26 Medtronic Ave, Inc. Staplebutton radiopaque marker
US6319244B2 (en) 1999-03-16 2001-11-20 Chase Medical, L.P. Catheter with flexible and rigid reinforcements
US6648854B1 (en) 1999-05-14 2003-11-18 Scimed Life Systems, Inc. Single lumen balloon-tipped micro catheter with reinforced shaft
US6355027B1 (en) * 1999-06-09 2002-03-12 Possis Medical, Inc. Flexible microcatheter
US6210396B1 (en) * 1999-06-24 2001-04-03 Medtronic, Inc. Guiding catheter with tungsten loaded band
US6689120B1 (en) 1999-08-06 2004-02-10 Boston Scientific Scimed, Inc. Reduced profile delivery system
US6500285B2 (en) 1999-08-23 2002-12-31 Scimed Life Systems, Inc. Method of making a catheter having interlocking ribbed bond regions
US20070265563A1 (en) * 2006-05-11 2007-11-15 Heuser Richard R Device for treating chronic total occlusion
US7232433B1 (en) 1999-09-22 2007-06-19 Siemens Medical Solutions Usa, Inc. Medical diagnostic ultrasound catheter with dielectric isolation
US7361158B1 (en) * 1999-09-24 2008-04-22 Medicinvent, Llc Catheter including textured interface
US6624626B2 (en) * 1999-11-01 2003-09-23 Polhemus Inc. Method and apparatus for electromagnetic position and orientation tracking with distortion compensation employing modulated signal
US6575959B1 (en) 1999-12-27 2003-06-10 Scimed Life Systems, Inc. Catheter incorporating an insert molded hub and method of manufacturing
US6648874B2 (en) 2000-02-28 2003-11-18 Scimed Life Systems, Inc. Guide catheter with lubricious inner liner
US6544225B1 (en) 2000-02-29 2003-04-08 Cordis Neurovascular, Inc. Embolic coil hydraulic deployment system with purge mechanism
US6893427B1 (en) 2000-03-23 2005-05-17 Vascon, Llc Catheter with thermoresponsive distal tip portion
ATE363312T1 (en) * 2000-03-23 2007-06-15 Cook Inc CATHETER INTRODUCTION SLEEVE
US6881209B2 (en) * 2000-05-25 2005-04-19 Cook Incorporated Medical device including unitary, continuous portion of varying durometer
US6623504B2 (en) 2000-12-08 2003-09-23 Scimed Life Systems, Inc. Balloon catheter with radiopaque distal tip
US7071898B2 (en) * 2002-07-18 2006-07-04 Information Decision Technologies, Llc Method for using a wireless motorized camera mount for tracking in augmented reality
CA2461927C (en) 2001-10-03 2012-07-10 Greg J. Kampa Medical device with polymer coated inner lumen
US7201763B2 (en) * 2001-10-24 2007-04-10 Boston Scientific Scimed, Inc. Distal balloon waist material relief and method of manufacture
US7065394B2 (en) * 2001-12-12 2006-06-20 Medtronic, Inc Guide catheter
US20040073158A1 (en) * 2001-12-12 2004-04-15 Medtronic, Inc. Guide catheter
US20030114831A1 (en) * 2001-12-14 2003-06-19 Scimed Life Systems, Inc. Catheter having improved curve retention and method of manufacture
US7569046B2 (en) * 2001-12-27 2009-08-04 Scimed Life Systems, Inc. Guide-in-guide catheter system
DE10220410B4 (en) * 2002-05-08 2006-04-13 Raumedic Ag Use of tubes for peripheral venous indwelling cannulas
DE10220409B4 (en) * 2002-05-08 2006-03-02 Raumedic Ag Use of a catheter tube
US9017308B2 (en) 2002-05-21 2015-04-28 Boston Scientific Scimed, Inc. Insert molded hub and strain relief
US8465469B2 (en) * 2002-09-12 2013-06-18 Medtronic Vascular, Inc. Reinforced catheter and methods of making
US20070043333A1 (en) * 2002-10-03 2007-02-22 Scimed Life Systems, Inc. Method for forming a medical device with a polymer coated inner lumen
US7300459B2 (en) 2002-10-17 2007-11-27 Heuser Richard R Stent with covering and differential dilation
AU2003297755A1 (en) * 2002-12-04 2004-06-23 Angiodynamics, Inc. Variable characteristic venous access catheter
US20110172644A1 (en) * 2002-12-04 2011-07-14 Zanoni Michael S Multi layer coextruded catheter shaft
US6881201B1 (en) * 2002-12-18 2005-04-19 Advanced Cardiovascular Systems, Inc. Balloon catheter having a spiral cut distal end
US8377035B2 (en) 2003-01-17 2013-02-19 Boston Scientific Scimed, Inc. Unbalanced reinforcement members for medical device
US7166088B2 (en) 2003-01-27 2007-01-23 Heuser Richard R Catheter introducer system
US7438712B2 (en) * 2003-03-05 2008-10-21 Scimed Life Systems, Inc. Multi-braid exterior tube
WO2004091471A2 (en) * 2003-04-04 2004-10-28 Berger, Constance, F. Apparatus for heating bottles and method of manufacturing same
AU2004229523B2 (en) * 2003-04-14 2008-09-25 Cook Medical Technologies Llc Large diameter delivery catheter/sheath
US11000670B2 (en) * 2003-04-28 2021-05-11 Cook Medical Technologies Llc Flexible sheath with varying durometer
US7201745B2 (en) * 2003-05-13 2007-04-10 Boston Scientific Scimed, Inc. Anti-infective central venous catheter with diffusion barrier layer
US20060129091A1 (en) 2004-12-10 2006-06-15 Possis Medical, Inc. Enhanced cross stream mechanical thrombectomy catheter with backloading manifold
US7615043B2 (en) * 2003-08-20 2009-11-10 Boston Scientific Scimed, Inc. Medical device incorporating a polymer blend
US7824392B2 (en) * 2003-08-20 2010-11-02 Boston Scientific Scimed, Inc. Catheter with thin-walled braid
US7402141B2 (en) * 2003-08-27 2008-07-22 Heuser Richard R Catheter guidewire system using concentric wires
US7771369B2 (en) * 2003-12-05 2010-08-10 Boston Scientific Scimed, Inc. Guide catheter with removable support
US20050159728A1 (en) * 2004-01-15 2005-07-21 Thomas Medical Products, Inc. Steerable sheath
US8608727B2 (en) 2004-03-01 2013-12-17 Smiths Medical Asd, Inc. Delivery system and method
US20050234499A1 (en) * 2004-04-19 2005-10-20 Scimed Life Systems, Inc. Multi-lumen balloon catheter including manifold
US20050273076A1 (en) * 2004-06-07 2005-12-08 C.R. Bard, Inc. Subcutaneous infusion devices
US7662144B2 (en) * 2004-06-22 2010-02-16 Boston Scientific Scimed, Inc. Catheter shaft with improved manifold bond
US7572244B2 (en) 2004-08-02 2009-08-11 Medrad, Inc. Miniature cross stream thrombectomy catheter
US8545418B2 (en) * 2004-08-25 2013-10-01 Richard R. Heuser Systems and methods for ablation of occlusions within blood vessels
US20090012429A1 (en) * 2004-08-25 2009-01-08 Heuser Richard R Catheter guidewire system using concentric wires
EP1807144A1 (en) * 2004-09-14 2007-07-18 William, a Cook Australia Pty. Ltd. Large diameter sheath
US7393181B2 (en) 2004-09-17 2008-07-01 The Penn State Research Foundation Expandable impeller pump
US7306585B2 (en) * 2004-09-30 2007-12-11 Engineering Resources Group, Inc. Guide catheter
US20060089569A1 (en) * 2004-10-26 2006-04-27 Soukup Thomas M Articulator with adjustable stiffness distal portion
US20060111649A1 (en) * 2004-11-19 2006-05-25 Scimed Life Systems, Inc. Catheter having improved torque response and curve retention
US7815599B2 (en) * 2004-12-10 2010-10-19 Boston Scientific Scimed, Inc. Catheter having an ultra soft tip and methods for making the same
US7744574B2 (en) * 2004-12-16 2010-06-29 Boston Scientific Scimed, Inc. Catheter tip to reduce wire lock
US20060184105A1 (en) * 2005-02-15 2006-08-17 Townsend Gregory L Thin wall catheter and method of placing same
US20060206091A1 (en) * 2005-03-10 2006-09-14 Tyco Healthcare Retail Services Ag Absorbent article having a channeled absorbent layer and method of making the same
WO2007004076A2 (en) 2005-05-09 2007-01-11 Angiomed Gmbh & Co. Medizintechnik Kg Implant delevery device
US20080188793A1 (en) 2007-02-06 2008-08-07 Possis Medical, Inc. Miniature flexible thrombectomy catheter
US8012117B2 (en) * 2007-02-06 2011-09-06 Medrad, Inc. Miniature flexible thrombectomy catheter
US8162878B2 (en) 2005-12-05 2012-04-24 Medrad, Inc. Exhaust-pressure-operated balloon catheter system
US7892186B2 (en) * 2005-12-09 2011-02-22 Heraeus Materials S.A. Handle and articulator system and method
US7374567B2 (en) 2006-01-25 2008-05-20 Heuser Richard R Catheter system for connecting adjacent blood vessels
US8062321B2 (en) 2006-01-25 2011-11-22 Pq Bypass, Inc. Catheter system for connecting adjacent blood vessels
US20070185567A1 (en) * 2006-01-25 2007-08-09 Heuser Richard R Catheter system with stent device for connecting adjacent blood vessels
AU2007230945B2 (en) 2006-03-23 2013-05-02 The Penn State Research Foundation Heart assist device with expandable impeller pump
US20080125752A1 (en) * 2006-08-09 2008-05-29 Boston Scientific Scimed, Inc. Catheter assembly having a modified reinforcement layer
US20080234813A1 (en) * 2007-03-20 2008-09-25 Heuser Richard R Percutaneous Interventional Cardiology System for Treating Valvular Disease
US8974418B2 (en) * 2007-06-12 2015-03-10 Boston Scientific Limited Forwardly directed fluid jet crossing catheter
US20080317991A1 (en) * 2007-06-19 2008-12-25 Tyco Electronics Corporation Multiple wall dimensionally recoverable tubing for forming reinforced medical devices
US20080319386A1 (en) * 2007-06-20 2008-12-25 Possis Medical, Inc. Forwardly directable fluid jet crossing catheter
US20090054874A1 (en) * 2007-08-23 2009-02-26 C. R. Bard, Inc. Multi-lumen catheter including a lumen having a variable cross sectional area
US20090082756A1 (en) * 2007-09-25 2009-03-26 Vasundhara Vidyarthi Transradial coronary catheter
WO2009054509A1 (en) * 2007-10-26 2009-04-30 Terumo Kabushiki Kaisha Catheter
US7841994B2 (en) * 2007-11-02 2010-11-30 Boston Scientific Scimed, Inc. Medical device for crossing an occlusion in a vessel
US20090149834A1 (en) 2007-12-07 2009-06-11 Gerald Moss Reinforced enteral feeding catheter
WO2009079539A1 (en) * 2007-12-17 2009-06-25 Medrad, Inc. Rheolytic thrombectomy catheter with self-inflation distal balloon
EP2227285A4 (en) 2007-12-26 2013-07-31 Medrad Inc Rheolytic thrombectomy catheter with self-inflating proximal balloon with drug infusion capabilities
US20090192485A1 (en) * 2008-01-28 2009-07-30 Heuser Richard R Snare device
DE112009000700T5 (en) 2008-03-20 2011-02-10 Medrad, Inc. Hydrodynamic direct current catheter system
US20090318892A1 (en) * 2008-06-20 2009-12-24 Maria Aboytes Removable Core Implant Delivery Catheter
US8343136B2 (en) * 2008-08-26 2013-01-01 Cook Medical Technologies Llc Introducer sheath with encapsulated reinforcing member
US9265918B2 (en) 2008-09-03 2016-02-23 Boston Scientific Scimed, Inc. Multilayer medical balloon
US8216498B2 (en) 2008-09-10 2012-07-10 Boston Scientific Scimed, Inc. Catheter having a coextruded fluoropolymer layer
US20100160862A1 (en) * 2008-12-22 2010-06-24 Cook Incorporated Variable stiffness introducer sheath with transition zone
US20110061658A1 (en) * 2009-08-12 2011-03-17 Robert Koorn Oropharyngeal devices for use in ventilating patients
US20110238041A1 (en) * 2010-03-24 2011-09-29 Chestnut Medical Technologies, Inc. Variable flexibility catheter
CN102985128B (en) * 2010-06-30 2015-05-20 泰尔茂株式会社 Catheter
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
CN103998091B (en) 2011-10-21 2017-03-22 波士顿科学西美德公司 locking catheter hub
US10463781B2 (en) 2011-12-20 2019-11-05 The Us Government Represented By The Department Of Veterans Affairs Multi-angulated catheter
US9072624B2 (en) 2012-02-23 2015-07-07 Covidien Lp Luminal stenting
GB2504176A (en) 2012-05-14 2014-01-22 Thoratec Corp Collapsible impeller for catheter pump
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US8721517B2 (en) 2012-05-14 2014-05-13 Thoratec Corporation Impeller for catheter pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
EP4186557A1 (en) 2012-07-03 2023-05-31 Tc1 Llc Motor assembly for catheter pump
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US20140180255A1 (en) * 2012-12-21 2014-06-26 Volcano Corporation Distal catheter tips and formation thereof
WO2014164136A1 (en) 2013-03-13 2014-10-09 Thoratec Corporation Fluid handling system
US11077294B2 (en) 2013-03-13 2021-08-03 Tc1 Llc Sheath assembly for catheter pump
US11033728B2 (en) 2013-03-13 2021-06-15 Tc1 Llc Fluid handling system
US9308302B2 (en) 2013-03-15 2016-04-12 Thoratec Corporation Catheter pump assembly including a stator
EP2968742B1 (en) 2013-03-15 2020-12-02 Tc1 Llc Catheter pump assembly including a stator
US9827126B2 (en) 2013-08-27 2017-11-28 Covidien Lp Delivery of medical devices
US9782186B2 (en) 2013-08-27 2017-10-10 Covidien Lp Vascular intervention system
US20150080858A1 (en) 2013-09-18 2015-03-19 Gerald Moss Catheter and method of making the same
US9301903B2 (en) 2014-03-31 2016-04-05 Gerald Moss Multi-lumen catheter
WO2015160943A1 (en) 2014-04-15 2015-10-22 Thoratec Corporation Sensors for catheter pumps
WO2015160979A1 (en) 2014-04-15 2015-10-22 Thoratec Corporation Catheter pump with access ports
WO2015160942A1 (en) 2014-04-15 2015-10-22 Thoratec Corporation Catheter pump with off-set motor position
WO2015160990A1 (en) 2014-04-15 2015-10-22 Thoratec Corporation Catheter pump introducer systems and methods
JP6641294B2 (en) * 2014-05-13 2020-02-05 アビオメド インコーポレイテッド Cannula assembly
EP3583973A1 (en) 2014-08-18 2019-12-25 Tc1 Llc Guide features for percutaneous catheter pump
EP3804797A1 (en) 2015-01-22 2021-04-14 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9675738B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Attachment mechanisms for motor of catheter pump
WO2016118777A1 (en) 2015-01-22 2016-07-28 Thoratec Corporation Reduced rotational mass motor assembly for catheter pump
US9907890B2 (en) 2015-04-16 2018-03-06 Tc1 Llc Catheter pump with positioning brace
EP3167845A1 (en) 2015-11-12 2017-05-17 The Provost, Fellows, Foundation Scholars, & the other members of Board, of the College of Holy and Undiv. Trinity of Queen Elizabeth near Dublin An implantable biocompatible expander suitable for treatment of constrictions of body lumen
US11160970B2 (en) 2016-07-21 2021-11-02 Tc1 Llc Fluid seals for catheter pump motor assembly
EP3808402A1 (en) 2016-07-21 2021-04-21 Tc1 Llc Gas-filled chamber for catheter pump motor assembly
CN109069789B (en) * 2016-08-23 2021-08-13 朝日英达科株式会社 Joint structure and catheter having the same
US10376396B2 (en) 2017-01-19 2019-08-13 Covidien Lp Coupling units for medical device delivery systems
EP3437668A1 (en) 2017-06-21 2019-02-06 Abiomed Europe GmbH Cannula for intravascular blood pump
US20190054286A1 (en) 2017-08-21 2019-02-21 Best Medical International, Inc. Apparatus and method for joining metal sleeve onto a tube
US11123209B2 (en) 2018-04-12 2021-09-21 Covidien Lp Medical device delivery
US10786377B2 (en) 2018-04-12 2020-09-29 Covidien Lp Medical device delivery
US11413176B2 (en) 2018-04-12 2022-08-16 Covidien Lp Medical device delivery
US11071637B2 (en) 2018-04-12 2021-07-27 Covidien Lp Medical device delivery
US10953195B2 (en) 2018-06-01 2021-03-23 Covidien Lp Flexible tip catheter
EP3801725A1 (en) * 2018-06-05 2021-04-14 Medtronic Vascular Inc. Medical catheter
WO2019236741A1 (en) 2018-06-05 2019-12-12 Medtronic Vascular, Inc. Medical catheter
US11413174B2 (en) 2019-06-26 2022-08-16 Covidien Lp Core assembly for medical device delivery systems
US11602621B2 (en) 2019-11-22 2023-03-14 ProVerum Limited Device for controllably deploying expandable implants
US11273025B2 (en) * 2019-11-22 2022-03-15 Pro Verum Limited Expandable implant delivery device
US11786698B2 (en) 2020-12-08 2023-10-17 DePuy Synthes Products, Inc. Catheter with textured surface
US11826520B2 (en) * 2020-12-08 2023-11-28 DePuy Synthes Products, Inc. Catheter designs for enhanced column strength
EP4297667A1 (en) * 2021-02-23 2024-01-03 Waveclear Inc. Therapeutic ultrasonic interventional system
US11944558B2 (en) 2021-08-05 2024-04-02 Covidien Lp Medical device delivery devices, systems, and methods
WO2023250069A1 (en) * 2022-06-23 2023-12-28 Boston Scientific Medical Device Limited Support catheter with enhanced torque response and high pushability
CN115253018A (en) * 2022-08-02 2022-11-01 深圳北芯生命科技股份有限公司 Micro-catheter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4563181A (en) * 1983-02-18 1986-01-07 Mallinckrodt, Inc. Fused flexible tip catheter
DE3435425A1 (en) * 1984-09-27 1986-04-03 Philips Patentverwaltung Gmbh, 2000 Hamburg MAGNETOOPTIC PRINT HEAD
US4898591A (en) * 1988-08-09 1990-02-06 Mallinckrodt, Inc. Nylon-PEBA copolymer catheter
US4950257A (en) * 1988-09-15 1990-08-21 Mallinckrodt, Inc. Catheter introducer with flexible tip
ATE104560T1 (en) * 1989-09-25 1994-05-15 Schneider Usa Inc SMALL DIAMETER DILATION CATHETER EQUIPPED WITH A WIRE REINFORCED COAXIAL TUBULAR BODY.
US5226899A (en) * 1990-03-26 1993-07-13 Becton, Dickinson And Company Catheter tubing of controlled in vivo softening
US5254107A (en) * 1991-03-06 1993-10-19 Cordis Corporation Catheter having extended braid reinforced transitional tip
US5221270A (en) * 1991-06-28 1993-06-22 Cook Incorporated Soft tip guiding catheter
US5318032A (en) * 1992-02-05 1994-06-07 Devices For Vascular Intervention Guiding catheter having soft tip
FR2687173B1 (en) * 1992-02-11 1995-09-08 Aerospatiale PROCESS FOR THE PRODUCTION OF A FIBER REINFORCEMENT FOR A COMPOSITE MATERIAL, AND A COMPOSITE PIECE COMPRISING SUCH A REINFORCEMENT.
DE69211678T2 (en) * 1992-04-21 1996-11-07 Cordis Corp Polyether hose for medical devices
US5300048A (en) * 1993-05-12 1994-04-05 Sabin Corporation Flexible, highly radiopaque plastic material catheter
US5403292A (en) * 1994-05-18 1995-04-04 Schneider (Usa) Inc. Thin wall catheter having enhanced torqueability characteristics

Also Published As

Publication number Publication date
AU1670695A (en) 1995-12-05
JPH09506026A (en) 1997-06-17
DE69534565T2 (en) 2006-06-14
DE69534565D1 (en) 2005-12-08
AU688858B2 (en) 1998-03-19
JP2950995B2 (en) 1999-09-20
EP0759788B1 (en) 2005-11-02
CA2189135A1 (en) 1995-11-23
US5725513A (en) 1998-03-10
US5403292A (en) 1995-04-04
WO1995031226A1 (en) 1995-11-23
ATE308351T1 (en) 2005-11-15
EP0759788A1 (en) 1997-03-05
MX9605630A (en) 1998-05-31
US5599325A (en) 1997-02-04

Similar Documents

Publication Publication Date Title
CA2189135C (en) Thin wall catheter having enhanced torqueability characteristics
US5545151A (en) Catheter having hydrophobic properties
US6042578A (en) Catheter reinforcing braids
US5836926A (en) Intravascular catheter
US5908413A (en) Radiopaque catheter and method of manufacture thereof
US6217565B1 (en) Reinforced variable stiffness tubing
US6068622A (en) Single piece hub/strain relief that can be injection molded over a shaft
AU650820B2 (en) Nylon-peba copolymer catheter
US6524299B1 (en) Flow-directed catheter
US6077258A (en) Braided angiography catheter having full length radiopacity and controlled flexibility
US5085649A (en) Torque controlled tubing
DE60219490T2 (en) MICRO CATHETER WITH IMPROVED DISTALER TIP AND TRANSITIONS
US5300032A (en) Catheter introducer with flexible tip
MXPA97003524A (en) Reinforcement braids for cate
CA2027326A1 (en) Kink-resistant medical tubing and catheters
JP6821812B2 (en) Catheter hub
CA2378853A1 (en) Introducer device having variable flexibility and kink resistance and method of manufacture for same
MXPA96005630A (en) Thin wall catheter that has improved the characteristics of tors

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed