CA2119165C - Radiopaque guidewiretip - Google Patents
Radiopaque guidewiretipInfo
- Publication number
- CA2119165C CA2119165C CA002119165A CA2119165A CA2119165C CA 2119165 C CA2119165 C CA 2119165C CA 002119165 A CA002119165 A CA 002119165A CA 2119165 A CA2119165 A CA 2119165A CA 2119165 C CA2119165 C CA 2119165C
- Authority
- CA
- Canada
- Prior art keywords
- helical coil
- distal
- proximal
- guide wire
- wire according
- 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
Links
- 239000000463 material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 6
- 238000005476 soldering Methods 0.000 description 6
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09058—Basic structures of guide wires
- A61M2025/09083—Basic structures of guide wires having a coil around a core
Abstract
The guide wire of this invention is especially suited for the percutaneous introduction of a balloon dilatation catheter into a blood vessel.
It contains a flexible shaft with a proximal portion and a distal portion. A flexible helical coil assembly surrounds the distal portion of the shaft.
The helical coil assembly has a radiographically visible distal helical coil and a proximal radiographically invisible helical coil. The proximal helical coil and the distal helical coil are attached to each other by a connecting helical coil that on one end is screwed into the proximal helical coil and on the other end is screwed into the distal helical coil.
It contains a flexible shaft with a proximal portion and a distal portion. A flexible helical coil assembly surrounds the distal portion of the shaft.
The helical coil assembly has a radiographically visible distal helical coil and a proximal radiographically invisible helical coil. The proximal helical coil and the distal helical coil are attached to each other by a connecting helical coil that on one end is screwed into the proximal helical coil and on the other end is screwed into the distal helical coil.
Description
211916~
GUIDE WIRE
Background of the Invention The invention pertains to a guide wire, especially for the percutaneous introduction of a balloon dilatation catheter into a blood vessel, with an elongated flexible shaft that contains a proximal end and a tapered distal end, and having a flexible spiral (helical coil) that surrounds the distal end of the shaft and is attached to it. The helical coil contains a distal radiographically visible part, a proximal radiographically invisible part and connection agents for the joining of the two parts of the helical coil.
Guide wires are known in several versions.
For the introduction of a balloon catheter into a blood vessel, the guide wire is inserted into the blood vessel with the aid of a guide catheter, and the balloon catheter is pushed onto the guide wire and advanced in the vessel until the spot intended for treatment is reached. In the placement of the guide wire it is important that its distal end is steerable within the blood vessel and is visible on the X-ray screen. Furthermore, it should also be possible to make the region of the blood vessel intended for treatment visible with the aid of a contrasting agent. To assure that the distal end of the guide wire has the smallest negative effect on the visibility of the vessel, with the guide wires of the known design only a frontal section of the helical coil is opaque to X-rays and, therefore, easily visible. The two parts of the helical coil have to be securely connected to each other, so that breakage of the helical coil during treatment can be eliminated. On the other hand, the connection of 211916~
these two parts should not diminish the steerability and the flexibility of the guide wire.
In the guide wire according to US-A-4,922,924, both parts of the helical coil are turned (screwed) into each other over several stretched turns (coils). At the ends of the bifilar section, both parts are soldered to each other and to the central shaft. A safety wire is inserted in the helical coil with one end connected to the shaft and the other end connected to the distal tip of the guide wire. This safety wire is intended to assure that the helical coil can be bent into a certain form and that in case of breakage of the helical coil the distal part of the helical coil cannot separate from the shaft.
US-A-4,748,986 shows a similar guide wire, in which also a distal part of the helical coil is screwed into a proximal part and is soldered together with it and also with the shaft. The soldered area extends here over the entire bifilar section, and this guide wire is also provided with a safety wire that connects the tip with the shaft.
The critical points in these guide wires are each located at the proximal and distal ends of the bifilar section. There, the turns of the helical coil are separated by (a distance equal to) the wire diameter of the helical coil, so that the respective other helical coil can be screwed into it. This space between the coils is filled in the bifilar section by the opposing second helical coil. At a certain distance from the bifilar section, the space between the coils is again normalized to a smaller dimension. However, an area that is sensitive to buckling is created between the bifilar section and 211916~
the helical coil where the space between the coils is normal, since the second helical coil is missing there, but the space between the coils is not yet normalized.
Another problem is created in the assembly of the helical coils. They have to be precisely positioned for screwing them together, and be held such that both helical coils are situated in the assembled state in perfect alignment and do combine after soldering to a smooth, stepless continuous guide wire.
GUIDE WIRE
Background of the Invention The invention pertains to a guide wire, especially for the percutaneous introduction of a balloon dilatation catheter into a blood vessel, with an elongated flexible shaft that contains a proximal end and a tapered distal end, and having a flexible spiral (helical coil) that surrounds the distal end of the shaft and is attached to it. The helical coil contains a distal radiographically visible part, a proximal radiographically invisible part and connection agents for the joining of the two parts of the helical coil.
Guide wires are known in several versions.
For the introduction of a balloon catheter into a blood vessel, the guide wire is inserted into the blood vessel with the aid of a guide catheter, and the balloon catheter is pushed onto the guide wire and advanced in the vessel until the spot intended for treatment is reached. In the placement of the guide wire it is important that its distal end is steerable within the blood vessel and is visible on the X-ray screen. Furthermore, it should also be possible to make the region of the blood vessel intended for treatment visible with the aid of a contrasting agent. To assure that the distal end of the guide wire has the smallest negative effect on the visibility of the vessel, with the guide wires of the known design only a frontal section of the helical coil is opaque to X-rays and, therefore, easily visible. The two parts of the helical coil have to be securely connected to each other, so that breakage of the helical coil during treatment can be eliminated. On the other hand, the connection of 211916~
these two parts should not diminish the steerability and the flexibility of the guide wire.
In the guide wire according to US-A-4,922,924, both parts of the helical coil are turned (screwed) into each other over several stretched turns (coils). At the ends of the bifilar section, both parts are soldered to each other and to the central shaft. A safety wire is inserted in the helical coil with one end connected to the shaft and the other end connected to the distal tip of the guide wire. This safety wire is intended to assure that the helical coil can be bent into a certain form and that in case of breakage of the helical coil the distal part of the helical coil cannot separate from the shaft.
US-A-4,748,986 shows a similar guide wire, in which also a distal part of the helical coil is screwed into a proximal part and is soldered together with it and also with the shaft. The soldered area extends here over the entire bifilar section, and this guide wire is also provided with a safety wire that connects the tip with the shaft.
The critical points in these guide wires are each located at the proximal and distal ends of the bifilar section. There, the turns of the helical coil are separated by (a distance equal to) the wire diameter of the helical coil, so that the respective other helical coil can be screwed into it. This space between the coils is filled in the bifilar section by the opposing second helical coil. At a certain distance from the bifilar section, the space between the coils is again normalized to a smaller dimension. However, an area that is sensitive to buckling is created between the bifilar section and 211916~
the helical coil where the space between the coils is normal, since the second helical coil is missing there, but the space between the coils is not yet normalized.
Another problem is created in the assembly of the helical coils. They have to be precisely positioned for screwing them together, and be held such that both helical coils are situated in the assembled state in perfect alignment and do combine after soldering to a smooth, stepless continuous guide wire.
2 describes a guide wire that at its distal end is provided with two helical coils in coaxial alignment to each other. Of these, a smaller inner helical coil is on one end soldered to the shaft. The other, larger helical coil is at the distal end soldered to a tip of the guide wire, and is at proximal portions soldered to the shaft and a proximal part of the inner helical coil. &uide wires with two coaxial helical coils are also known from US-A-5,144,959 and US-A-5,063,935. The inner helical coil is at the proximal end connected with the shaft, and at the distal end with the tip of the guide wire.
Summary of the Invention The invention is based on the objective to create a guide wire that has a helical coil assembly with an unchanged flexibility also in the area where the helical coils are connected together, and that is easier to manufacture, but nevertheless safe and easily steerable. The objective is reached in the generic guide wire by having the means of connection include a connecting helical coil that is screwed with one end into the proximal helical coil, and with the other end into the distal helical coil. The entire helical coil assembly composed of three helical coils, behaves in its flexibility essentially like a helical coil wound from a single wire. The relatively short X-ray-visible area is sharply distinguished. The two opposing ends of the proximal helical coil and the distal helical coil can in the guide wire according to the invention butt together.
The mechanical properties and especially the flexibility of the helical coil assembly are in the guide wire according to the invention also in the area of the connection point of the proximal helical coil and the distal helical coil essentially uniform over the entire length of the helical coil assembly, so that the connection point does, therefore, not impair the steerability of the guide wire.
Furthermore, the outside of the helical coil assembly is essentially uniform over its entire length and the coils are automatically centered during assembly.
Additional advantageous characteristics of the invention result from the dependent claims, the following description, and the drawing.
Brief Description of the Drawings An example of execution of the invention is described further i~ the following drawings.
25 Depicted are in :
Fig. la in greatly enlarged scale a view of a partly longitudinal section of a guide wire according to the invention, 30 Fig. lb a partial view of the guide wire according to Fig. la, and Figs. 2a to 2i schematic depictions of the distal end of the guide wire for 211916~
elucidation of the process for its manufacture.
Detailed Description of the Invention The guide wire contains a helical coil assembly spring 6 that is pushed onto the distal end of a shaft 1, and which on this shaft 1 is connected to the shaft 1 at the distal end by a tip 5 that is rounded in front, and at the proximal end by a soldered point 16. The total length of the guide wire or the shaft 1 is, e.g., 175 cm, while the length of the helical coil assembly 6 is, e.g., approximately 30 cm.
The wire-like Teflon~-coated shaft 1 has proximally of a conically tapered zone 2 a circular cross section with a diameter of approximately 0.15 mm. Between the conically tapered zone 2 and a flattened distal zone 4, the shaft 1 has in a zone 3 also a uniform circular cross section, with a diameter of, e.g., 0.075 mm. In zone 4, the shaft is, e.g., over a length of approximately 2 cm flattened to a thickness of, e.g., 0.05 mm. The torsion transfer is increased by the flattening of the shaft 1 at its distal end, and the danger of fatigue is simultaneously reduced.
The guide wire is provided on its outside, with the exception of a zone 17, in a generally known way with a Teflon~ coating 7. This coating reduces the friction of the guide wire, if it is moved within a guide catheter of generally known design, not shown here.
The helical coil assembly spring 6 consists of a proximal helical coil 8 and a distal helical coil 9, which are permanently connected to each other by a connecting helical coil 13. The proximal helical coil 8 is wound from a non-corroding flexible steel wire 18 with a diameter of approximately 0.075 mm, and subsequently coated with Teflon~ or another slippery plastic. In a zone 10 of approximately eight to ten coils, proximal helical coil 8, as visible in Fig. la is somewhat stretched so that the described coils are here only slightly opened. The distal helical coil 9 is wound from a gold-coated tungsten wire of approximately 0.075 mm thickness in an outside dimension of approximately 0.35 mm. This distal helical coil 9 is on its outside advantageously not coated with TeflonX. Distal helical coil 9 is in its entire length, over all coils, slightly opened, in order to increase the flexibility of distal helical coil 9.
The connecting helical coil 13 is screwed with one end into the inside of proximal helical coil 8, and with the other end also into the inside of distal helical coil 9. The connecting helical coil 13 has, e.g., eight coils that similar to a thread do insert into proximal helical coil 8 and distal helical coil 9. The connecting helical coil 13 is manufactured on a winding spindle with an outside diameter of 0.1 mm from a gold-coated tungsten wire with an outside diameter of approximately 0.05 mm.
It too, is in the longitudinal direction somewhat stretched. The connecting helical coil 13 is preferentially over its entire length solidly connected to proximal helical coil 8 and distal helical coil 9 with silver solder. Distal helical coil 9 and the connecting helical coil are easily visible in radiography, especially also due to the material concentration by connecting helical coil 13, while, in contrast to it, the proximal helical coil 8 is radiographically invisible. Therefore, distal helical coil 9 can be radiographically observed during the introduction of the distal tip of the guide wire. It is essential that the flexibility of the helical coil assembly 6 is not significantly impaired by the connecting helical coil 13 and its soldering with proximal helical coil 8 and distal helical coil 9. Helical coil assembly 6 has, therefore, in its flexibility similar properties as a non-assembled helical coil. As depicted in Fig. lb, the ends 8a and 9a of the proximal helical coils 8 and distal helical coil 9 are butt-joined so that the two wires forming the proximal helical coil 8 and the distal helical coil 9 run stepless into each other and the outside diameter of the entire helical coil assembly 6 is uniform.
The manufacture of the guide wire according to the invention is in the following briefly described with the aid of Figs. 2a to 2i.
According to Figs. 2a and 2b, proximal helical coil 8 is pushed from the distal end onto the shaft 1, and the connecting helical coil 13 with, e.g., four coils, is screwed into the distal end of proximal helical coil 8. The circular tip of shaft 1 is now flattened and obtains approximately the shape shown in Fig. 2d. In the next process step, the distal helical coil 9 is pushed onto the shaft 1 and screwed onto the connecting helical coil 13. Fig.
2e. Distal helical coil 9 is solidly connected to shaft 1 by plasma jet welding or soldering of the distal tip, and the tip 5 created thereby is frontally rounded off. Fig 2f. Then, the connecting helical coil 13 is soldered together with the proximal helical coil 8 and distal helical coil 9.
211gl65 As shown in Fig. 2g, the soldering point 14 essentially extends over the entire length of the connecting helical coil 13. According to Fig. 2h, an adhesive point 15 is provided that connects shaft 1 with proximal helical coil 8, for the purpose of improving the torsion transfer. Finally, proximal helical coil 8 is at its proximal end soldered to shaft 1 so that the soldering point 16, shown in Fig.
2i, is created. This soldering point 16 is preferentially created last, so that the helical coil assembly 6 lies absolutely stress-free over shaft 1.
Summary of the Invention The invention is based on the objective to create a guide wire that has a helical coil assembly with an unchanged flexibility also in the area where the helical coils are connected together, and that is easier to manufacture, but nevertheless safe and easily steerable. The objective is reached in the generic guide wire by having the means of connection include a connecting helical coil that is screwed with one end into the proximal helical coil, and with the other end into the distal helical coil. The entire helical coil assembly composed of three helical coils, behaves in its flexibility essentially like a helical coil wound from a single wire. The relatively short X-ray-visible area is sharply distinguished. The two opposing ends of the proximal helical coil and the distal helical coil can in the guide wire according to the invention butt together.
The mechanical properties and especially the flexibility of the helical coil assembly are in the guide wire according to the invention also in the area of the connection point of the proximal helical coil and the distal helical coil essentially uniform over the entire length of the helical coil assembly, so that the connection point does, therefore, not impair the steerability of the guide wire.
Furthermore, the outside of the helical coil assembly is essentially uniform over its entire length and the coils are automatically centered during assembly.
Additional advantageous characteristics of the invention result from the dependent claims, the following description, and the drawing.
Brief Description of the Drawings An example of execution of the invention is described further i~ the following drawings.
25 Depicted are in :
Fig. la in greatly enlarged scale a view of a partly longitudinal section of a guide wire according to the invention, 30 Fig. lb a partial view of the guide wire according to Fig. la, and Figs. 2a to 2i schematic depictions of the distal end of the guide wire for 211916~
elucidation of the process for its manufacture.
Detailed Description of the Invention The guide wire contains a helical coil assembly spring 6 that is pushed onto the distal end of a shaft 1, and which on this shaft 1 is connected to the shaft 1 at the distal end by a tip 5 that is rounded in front, and at the proximal end by a soldered point 16. The total length of the guide wire or the shaft 1 is, e.g., 175 cm, while the length of the helical coil assembly 6 is, e.g., approximately 30 cm.
The wire-like Teflon~-coated shaft 1 has proximally of a conically tapered zone 2 a circular cross section with a diameter of approximately 0.15 mm. Between the conically tapered zone 2 and a flattened distal zone 4, the shaft 1 has in a zone 3 also a uniform circular cross section, with a diameter of, e.g., 0.075 mm. In zone 4, the shaft is, e.g., over a length of approximately 2 cm flattened to a thickness of, e.g., 0.05 mm. The torsion transfer is increased by the flattening of the shaft 1 at its distal end, and the danger of fatigue is simultaneously reduced.
The guide wire is provided on its outside, with the exception of a zone 17, in a generally known way with a Teflon~ coating 7. This coating reduces the friction of the guide wire, if it is moved within a guide catheter of generally known design, not shown here.
The helical coil assembly spring 6 consists of a proximal helical coil 8 and a distal helical coil 9, which are permanently connected to each other by a connecting helical coil 13. The proximal helical coil 8 is wound from a non-corroding flexible steel wire 18 with a diameter of approximately 0.075 mm, and subsequently coated with Teflon~ or another slippery plastic. In a zone 10 of approximately eight to ten coils, proximal helical coil 8, as visible in Fig. la is somewhat stretched so that the described coils are here only slightly opened. The distal helical coil 9 is wound from a gold-coated tungsten wire of approximately 0.075 mm thickness in an outside dimension of approximately 0.35 mm. This distal helical coil 9 is on its outside advantageously not coated with TeflonX. Distal helical coil 9 is in its entire length, over all coils, slightly opened, in order to increase the flexibility of distal helical coil 9.
The connecting helical coil 13 is screwed with one end into the inside of proximal helical coil 8, and with the other end also into the inside of distal helical coil 9. The connecting helical coil 13 has, e.g., eight coils that similar to a thread do insert into proximal helical coil 8 and distal helical coil 9. The connecting helical coil 13 is manufactured on a winding spindle with an outside diameter of 0.1 mm from a gold-coated tungsten wire with an outside diameter of approximately 0.05 mm.
It too, is in the longitudinal direction somewhat stretched. The connecting helical coil 13 is preferentially over its entire length solidly connected to proximal helical coil 8 and distal helical coil 9 with silver solder. Distal helical coil 9 and the connecting helical coil are easily visible in radiography, especially also due to the material concentration by connecting helical coil 13, while, in contrast to it, the proximal helical coil 8 is radiographically invisible. Therefore, distal helical coil 9 can be radiographically observed during the introduction of the distal tip of the guide wire. It is essential that the flexibility of the helical coil assembly 6 is not significantly impaired by the connecting helical coil 13 and its soldering with proximal helical coil 8 and distal helical coil 9. Helical coil assembly 6 has, therefore, in its flexibility similar properties as a non-assembled helical coil. As depicted in Fig. lb, the ends 8a and 9a of the proximal helical coils 8 and distal helical coil 9 are butt-joined so that the two wires forming the proximal helical coil 8 and the distal helical coil 9 run stepless into each other and the outside diameter of the entire helical coil assembly 6 is uniform.
The manufacture of the guide wire according to the invention is in the following briefly described with the aid of Figs. 2a to 2i.
According to Figs. 2a and 2b, proximal helical coil 8 is pushed from the distal end onto the shaft 1, and the connecting helical coil 13 with, e.g., four coils, is screwed into the distal end of proximal helical coil 8. The circular tip of shaft 1 is now flattened and obtains approximately the shape shown in Fig. 2d. In the next process step, the distal helical coil 9 is pushed onto the shaft 1 and screwed onto the connecting helical coil 13. Fig.
2e. Distal helical coil 9 is solidly connected to shaft 1 by plasma jet welding or soldering of the distal tip, and the tip 5 created thereby is frontally rounded off. Fig 2f. Then, the connecting helical coil 13 is soldered together with the proximal helical coil 8 and distal helical coil 9.
211gl65 As shown in Fig. 2g, the soldering point 14 essentially extends over the entire length of the connecting helical coil 13. According to Fig. 2h, an adhesive point 15 is provided that connects shaft 1 with proximal helical coil 8, for the purpose of improving the torsion transfer. Finally, proximal helical coil 8 is at its proximal end soldered to shaft 1 so that the soldering point 16, shown in Fig.
2i, is created. This soldering point 16 is preferentially created last, so that the helical coil assembly 6 lies absolutely stress-free over shaft 1.
Claims (14)
1. A guide wire comprising:
an elongated flexible shaft with a proximal portion and a distal portion, a helical coil assembly surrounding and connected to the distal portion of the shaft, the helical coil assembly including a distal radiographically visible helical coil and a proximal radiographically invisible helical coil, and a connecting helical coil having one end screwed into a distal portion Or the proximal helical coil and with the other end screwed into a proximal portion of the distal helical coil.
an elongated flexible shaft with a proximal portion and a distal portion, a helical coil assembly surrounding and connected to the distal portion of the shaft, the helical coil assembly including a distal radiographically visible helical coil and a proximal radiographically invisible helical coil, and a connecting helical coil having one end screwed into a distal portion Or the proximal helical coil and with the other end screwed into a proximal portion of the distal helical coil.
2. The guide wire according to claim 1 where the coils in the distal portion of the proximal helical coil and the coils in the proximal portion of the distal helical coil are spaced apart in the longitudinal direction to create slots between adjacent coils having a longitudinal dimension smaller than the wire diameter of the connecting helical coil.
3. The guide wire according to claim 2 where the coils in the connecting helical coil are spaced apart in the longitudinal direction.
4. The guide wire according to claim 3 where the distal end of the proximal helical coil is butt joined to the proximal end of the distal helical coil.
5. The guide wire according to claim 4 where the connecting helical coil is formed from six to eight coils.
6. The guide wire according to claim 5 where the connecting coil is manufactured from a radiologically visible material.
7. The guide wire according to claim 6 where the wire has an outside diameter of 0.05 to 0.10 mm.
8. The guide wire according to claim 7 where the connecting helical coil is soldered to the proximal helical coil and to the distal helical coil.
9. The guide wire according to claim 8 where the connecting helical coil is soldered along its outside to the proximal helical coil and to the distal helical coil.
10. The guide wire according to claim 9 where the distal helical coil is manufactured from a radiologically visible material.
11. The guide wire according to claim 10 where the shaft has a distal tip that is rigidly attached to the helical coil assembly by a plasma jet welding point.
12. The guide wire according to claim 11 where the proximal helical coil is attached to the shaft through an adhesive point.
13. The guide wire according to claim 12 where the proximal helical coil is made from a non-corroding steel wire.
14. The guide wire according to claim 13 where the outside diameter of the proximal helical coil is substantially the same as the outside diameter of the distal helical coil.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93810371.0 | 1993-05-19 | ||
| EP93810371A EP0625358B1 (en) | 1993-05-19 | 1993-05-19 | Guide wire |
| US08/207,576 US5429139A (en) | 1993-05-19 | 1994-03-07 | Guide wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2119165A1 CA2119165A1 (en) | 1994-11-20 |
| CA2119165C true CA2119165C (en) | 1998-08-04 |
Family
ID=26134817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002119165A Expired - Fee Related CA2119165C (en) | 1993-05-19 | 1994-03-16 | Radiopaque guidewiretip |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US5429139A (en) |
| EP (1) | EP0625358B1 (en) |
| JP (1) | JP2737650B2 (en) |
| AT (1) | ATE140159T1 (en) |
| AU (1) | AU659574B2 (en) |
| CA (1) | CA2119165C (en) |
| DE (1) | DE59303201D1 (en) |
| DK (1) | DK0625358T3 (en) |
| ES (1) | ES2089775T3 (en) |
Families Citing this family (82)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6673025B1 (en) | 1993-12-01 | 2004-01-06 | Advanced Cardiovascular Systems, Inc. | Polymer coated guidewire |
| US6139510A (en) * | 1994-05-11 | 2000-10-31 | Target Therapeutics Inc. | Super elastic alloy guidewire |
| US5673707A (en) * | 1994-09-23 | 1997-10-07 | Boston Scientific Corporation | Enhanced performance guidewire |
| ATE193834T1 (en) * | 1995-03-02 | 2000-06-15 | Schneider Europ Gmbh | METHOD FOR PRODUCING A GUIDE WIRE |
| US5792075A (en) * | 1995-04-11 | 1998-08-11 | Schneider (Europe) A.G. | Method and apparatus for extending the length of a guide wire |
| EP0738495B1 (en) | 1995-04-18 | 2002-06-26 | Schneider (Europe) GmbH | Pressure measuring guide wire |
| EP0750879B1 (en) | 1995-06-29 | 2000-11-29 | Schneider (Europe) GmbH | A medical appliance for pressure measurement in a blood vessel |
| EP0755693A1 (en) * | 1995-07-18 | 1997-01-29 | Schneider (Europe) Ag | Catheter guide wire |
| US5830155A (en) * | 1995-10-27 | 1998-11-03 | Cordis Corporation | Guidewire assembly |
| US6019736A (en) * | 1995-11-06 | 2000-02-01 | Francisco J. Avellanet | Guidewire for catheter |
| ATE164772T1 (en) * | 1996-05-03 | 1998-04-15 | Schneider Europ Ag | METHOD FOR PRODUCING A GUIDE WIRE AND GUIDE WIRE |
| ATE227594T1 (en) * | 1996-06-25 | 2002-11-15 | Schneider Europ Gmbh | HOLDING CONNECTION FOR EXTENSION OF A GUIDE WIRE |
| US6278057B1 (en) * | 1997-05-02 | 2001-08-21 | General Science And Technology Corp. | Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire |
| US6399886B1 (en) | 1997-05-02 | 2002-06-04 | General Science & Technology Corp. | Multifilament drawn radiopaque high elastic cables and methods of making the same |
| US6215073B1 (en) | 1997-05-02 | 2001-04-10 | General Science And Technology Corp | Multifilament nickel-titanium alloy drawn superelastic wire |
| US6137060A (en) | 1997-05-02 | 2000-10-24 | General Science And Technology Corp | Multifilament drawn radiopaque highly elastic cables and methods of making the same |
| US6313409B1 (en) | 1997-05-02 | 2001-11-06 | General Science And Technology Corp | Electrical conductors and methods of making same |
| US6449834B1 (en) | 1997-05-02 | 2002-09-17 | Scilogy Corp. | Electrical conductor coils and methods of making same |
| US6191365B1 (en) | 1997-05-02 | 2001-02-20 | General Science And Technology Corp | Medical devices incorporating at least one element made from a plurality of twisted and drawn wires |
| EP0879616A1 (en) * | 1997-05-21 | 1998-11-25 | Schneider (Europe) GmbH | Guide wire |
| EP0879617B1 (en) * | 1997-05-21 | 2003-04-16 | Schneider (Europe) GmbH | Pressure monitoring guide wire and method for manufacturing such a guide wire |
| US7494474B2 (en) * | 1997-06-04 | 2009-02-24 | Advanced Cardiovascular Systems, Inc. | Polymer coated guidewire |
| US6183420B1 (en) * | 1997-06-20 | 2001-02-06 | Medtronic Ave, Inc. | Variable stiffness angioplasty guide wire |
| US5957865A (en) * | 1997-09-25 | 1999-09-28 | Merit Medical Systems, Inc. | Flexible catheter guidewire |
| US6132388A (en) | 1997-10-16 | 2000-10-17 | Scimed Life Systems, Inc. | Guide wire tip |
| US6306105B1 (en) * | 1998-05-14 | 2001-10-23 | Scimed Life Systems, Inc. | High performance coil wire |
| US6387060B1 (en) * | 1998-06-17 | 2002-05-14 | Advanced Cardiovascular Systems, Inc. | Composite radiopaque intracorporeal product |
| US6464650B2 (en) * | 1998-12-31 | 2002-10-15 | Advanced Cardiovascular Systems, Inc. | Guidewire with smoothly tapered segment |
| JP3426174B2 (en) * | 1999-12-24 | 2003-07-14 | 朝日インテック株式会社 | Medical guidewire |
| AU781910B2 (en) * | 2000-01-28 | 2005-06-23 | Cook Medical Technologies Llc | Endovascular medical device with plurality of wires |
| US6599254B2 (en) * | 2000-05-08 | 2003-07-29 | R. Edward Winters | Multi-feature steerable guidewire for vascular systems |
| US7097624B2 (en) * | 2000-10-05 | 2006-08-29 | Scimed Life Systems, Inc. | Multi-layer and multi-section coils for guide wire |
| US6554942B2 (en) * | 2000-12-28 | 2003-04-29 | Scimed Life Systems, Inc. | Method of manufacturing a guidewire with an extrusion jacket |
| US6908448B2 (en) * | 2001-08-24 | 2005-06-21 | Dermisonics, Inc. | Substance delivery device |
| JP3762290B2 (en) * | 2001-12-03 | 2006-04-05 | 朝日インテック株式会社 | Medical guidewire |
| US20070219464A1 (en) * | 2002-03-22 | 2007-09-20 | Stephen Davis | Guidewire with deflectable re-entry tip |
| US7481778B2 (en) * | 2002-03-22 | 2009-01-27 | Cordis Corporation | Guidewire with deflectable tip having improved flexibility |
| CA2675209C (en) * | 2002-03-22 | 2013-01-08 | Cordis Corporation | Rapid-exchange balloon catheter shaft and method |
| US7128718B2 (en) * | 2002-03-22 | 2006-10-31 | Cordis Corporation | Guidewire with deflectable tip |
| US7351214B2 (en) | 2002-03-22 | 2008-04-01 | Cordis Corporation | Steerable balloon catheter |
| US7520863B2 (en) | 2002-03-22 | 2009-04-21 | Cordis Corporation | Guidewire with deflectable tip having improved torque characteristics |
| US20070213689A1 (en) * | 2002-03-22 | 2007-09-13 | Grewe David D | Deflectable tip infusion guidewire |
| US20030216677A1 (en) * | 2002-05-15 | 2003-11-20 | Li Pan | Biosensor for dialysis therapy |
| JP4332340B2 (en) * | 2002-11-13 | 2009-09-16 | 株式会社ハイレックスコーポレーション | Medical guidewire |
| US7077811B2 (en) * | 2002-12-23 | 2006-07-18 | Scimed Life Systems, Inc. | Guidewire tip construction |
| US7182735B2 (en) | 2003-02-26 | 2007-02-27 | Scimed Life Systems, Inc. | Elongated intracorporal medical device |
| US20040167439A1 (en) * | 2003-02-26 | 2004-08-26 | Sharrow James S. | Guidewire having textured proximal portion |
| US7169118B2 (en) * | 2003-02-26 | 2007-01-30 | Scimed Life Systems, Inc. | Elongate medical device with distal cap |
| US8167821B2 (en) * | 2003-02-26 | 2012-05-01 | Boston Scientific Scimed, Inc. | Multiple diameter guidewire |
| AU2004227920B2 (en) * | 2003-04-03 | 2011-03-24 | Ethicon Endo-Surgery, Inc. | Guide wire having bending segment |
| JP4186689B2 (en) | 2003-04-18 | 2008-11-26 | ニプロ株式会社 | Guide wire |
| JP4677205B2 (en) * | 2003-07-17 | 2011-04-27 | テルモ株式会社 | Guide wire |
| US7833175B2 (en) * | 2003-09-05 | 2010-11-16 | Boston Scientific Scimed, Inc. | Medical device coil |
| US7785273B2 (en) * | 2003-09-22 | 2010-08-31 | Boston Scientific Scimed, Inc. | Guidewire with reinforcing member |
| JP4497454B2 (en) * | 2004-04-06 | 2010-07-07 | 朝日インテック株式会社 | Medical tools |
| WO2005113051A2 (en) | 2004-05-14 | 2005-12-01 | Ethicon Endo-Surgery, Inc. | Medical instrument having a medical guidewire |
| US7758564B2 (en) * | 2004-05-14 | 2010-07-20 | Ethicon Endo-Surgery, Inc. | Medical instrument having a catheter and a medical guidewire |
| JP2006271955A (en) * | 2005-03-02 | 2006-10-12 | Terumo Corp | Guide wire |
| US20070060878A1 (en) * | 2005-09-01 | 2007-03-15 | Possis Medical, Inc. | Occlusive guidewire system having an ergonomic handheld control mechanism and torqueable kink-resistant guidewire |
| US9254211B2 (en) * | 2005-10-06 | 2016-02-09 | Cordis Corporation | Stent delivery system using a steerable guide wire |
| DE102006034389B4 (en) * | 2006-07-25 | 2018-06-07 | Siemens Healthcare Gmbh | Catheter for use in magnetic resonance assisted interventional procedures |
| US20080045863A1 (en) * | 2006-08-17 | 2008-02-21 | Ethicon Endo-Surgery, Inc. | Guidewire structure including a medical guidewire |
| US8002714B2 (en) * | 2006-08-17 | 2011-08-23 | Ethicon Endo-Surgery, Inc. | Guidewire structure including a medical guidewire and method for using a medical instrument |
| US20080097331A1 (en) * | 2006-09-05 | 2008-04-24 | Ethicon Endo-Surgery, Inc. | Guidewire structure including a medical guidewire and method for using |
| US20080064920A1 (en) * | 2006-09-08 | 2008-03-13 | Ethicon Endo-Surgery, Inc. | Medical drive system for providing motion to at least a portion of a medical apparatus |
| US8460195B2 (en) * | 2007-01-19 | 2013-06-11 | Sunnybrook Health Sciences Centre | Scanning mechanisms for imaging probe |
| US8308658B2 (en) | 2007-04-13 | 2012-11-13 | Neometrics, Inc. | Medical guidewire |
| US20110224771A1 (en) * | 2007-10-29 | 2011-09-15 | Michael Schwager | Catheter |
| EP2259830B1 (en) | 2008-02-05 | 2017-08-16 | Bridgepoint Medical, Inc. | Crossing occlusions in blood vessels |
| US8337425B2 (en) | 2008-02-05 | 2012-12-25 | Bridgepoint Medical, Inc. | Endovascular device with a tissue piercing distal probe and associated methods |
| US8403867B2 (en) * | 2009-05-14 | 2013-03-26 | Medtronic Vascular, Inc. | Concentric guidewire assembly |
| JP4913198B2 (en) * | 2009-10-27 | 2012-04-11 | 株式会社パテントストラ | Medical guide wire, method for manufacturing medical guide wire, assembly of medical guide wire, microcatheter and guiding catheter, and assembly of medical guide wire, balloon catheter and guiding catheter |
| US20110190831A1 (en) * | 2010-01-29 | 2011-08-04 | Kyphon Sarl | Steerable balloon catheter |
| JP5392783B2 (en) * | 2010-06-11 | 2014-01-22 | 朝日インテック株式会社 | Medical guidewire |
| US11298251B2 (en) | 2010-11-17 | 2022-04-12 | Abbott Cardiovascular Systems, Inc. | Radiopaque intraluminal stents comprising cobalt-based alloys with primarily single-phase supersaturated tungsten content |
| US9017246B2 (en) | 2010-11-19 | 2015-04-28 | Boston Scientific Scimed, Inc. | Biliary catheter systems including stabilizing members |
| JP5382953B2 (en) * | 2011-01-28 | 2014-01-08 | 朝日インテック株式会社 | Guide wire |
| US9724494B2 (en) * | 2011-06-29 | 2017-08-08 | Abbott Cardiovascular Systems, Inc. | Guide wire device including a solderable linear elastic nickel-titanium distal end section and methods of preparation therefor |
| WO2014105578A1 (en) * | 2012-12-27 | 2014-07-03 | Volcano Corporation | Intravascular guidewire with hyper flexible distal end portion |
| EP3261700B1 (en) * | 2015-02-27 | 2020-07-29 | Hollister Incorporated | Urinary catheter assemblies with funnel-mounted gripping member |
| US11452533B2 (en) | 2019-01-10 | 2022-09-27 | Abbott Cardiovascular Systems Inc. | Guide wire tip having roughened surface |
| CN113082466A (en) * | 2021-04-08 | 2021-07-09 | 哈尔滨医科大学 | Guide wire |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545390A (en) * | 1982-09-22 | 1985-10-08 | C. R. Bard, Inc. | Steerable guide wire for balloon dilatation procedure |
| US4554929A (en) * | 1983-07-13 | 1985-11-26 | Advanced Cardiovascular Systems, Inc. | Catheter guide wire with short spring tip and method of using the same |
| USRE33911E (en) * | 1983-07-13 | 1992-05-05 | Advanced Cardiovascular Systems, Inc. | Catheter guide wire with short spring tip and method of using the same |
| US4538622A (en) * | 1983-11-10 | 1985-09-03 | Advanced Cardiovascular Systems, Inc. | Guide wire for catheters |
| US4748986A (en) * | 1985-11-26 | 1988-06-07 | Advanced Cardiovascular Systems, Inc. | Floppy guide wire with opaque tip |
| US4721117A (en) * | 1986-04-25 | 1988-01-26 | Advanced Cardiovascular Systems, Inc. | Torsionally stabilized guide wire with outer jacket |
| US4676249A (en) * | 1986-05-19 | 1987-06-30 | Cordis Corporation | Multi-mode guidewire |
| US4763647A (en) * | 1987-01-06 | 1988-08-16 | C. R. Bard, Inc. | Dual coil steerable guidewire |
| US4757827A (en) * | 1987-02-17 | 1988-07-19 | Versaflex Delivery Systems Inc. | Steerable guidewire with deflectable tip |
| US5105818A (en) * | 1987-04-10 | 1992-04-21 | Cardiometric, Inc. | Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of blood in a vessel and screw joint for use therewith |
| US5165421A (en) * | 1987-09-30 | 1992-11-24 | Lake Region Manufacturing Co., Inc. | Hollow lumen cable apparatus |
| US4830023A (en) * | 1987-11-27 | 1989-05-16 | Medi-Tech, Incorporated | Medical guidewire |
| US4934380A (en) * | 1987-11-27 | 1990-06-19 | Boston Scientific Corporation | Medical guidewire |
| US5067489A (en) * | 1988-08-16 | 1991-11-26 | Flexmedics Corporation | Flexible guide with safety tip |
| US4886067A (en) * | 1989-01-03 | 1989-12-12 | C. R. Bard, Inc. | Steerable guidewire with soft adjustable tip |
| US4966163A (en) * | 1989-02-14 | 1990-10-30 | Advanced Cardiovascular Systems, Inc. | Extendable guidewire for vascular procedures |
| DE3905119A1 (en) * | 1989-02-20 | 1990-08-23 | Bayer Ag | SUBSTITUTED ACRYLIC ACID ESTERS |
| US4922924A (en) * | 1989-04-27 | 1990-05-08 | C. R. Bard, Inc. | Catheter guidewire with varying radiopacity |
| US5063935A (en) * | 1989-04-27 | 1991-11-12 | C. R. Bard, Inc. | Catheter guidewire with varying radiopacity |
| US5144959A (en) * | 1989-08-15 | 1992-09-08 | C. R. Bard, Inc. | Catheter guidewire with varying radiopacity |
| DE3931350A1 (en) * | 1989-09-20 | 1991-03-28 | Kaltenbach Martin | GUIDE SLEEVE FOR IMPORTING CATHETERS |
| US5084022A (en) * | 1989-10-04 | 1992-01-28 | Lake Region Manufacturing Company, Inc. | Graduated guidewire |
| US5060660A (en) * | 1990-02-28 | 1991-10-29 | C. R. Bard, Inc. | Steerable extendable guidewire with adjustable tip |
| US5147317A (en) * | 1990-06-04 | 1992-09-15 | C.R. Bard, Inc. | Low friction varied radiopacity guidewire |
| JP3273255B2 (en) * | 1990-08-29 | 2002-04-08 | バクスター インターナショナル インコーポレーテッド | Dual coil guidewire with radiopaque peripheral tip |
| US5174302A (en) * | 1990-12-04 | 1992-12-29 | Cordis Corporation | Variable radiopacity guidewire with spaced highly radiopaque regions |
| US5109867A (en) * | 1991-04-19 | 1992-05-05 | Target Therapeutics | Extendable guidewire assembly |
| CA2086093C (en) * | 1991-05-07 | 1996-01-09 | Ivan Sepetka | Catheter guide wire |
| US5228453A (en) * | 1991-05-07 | 1993-07-20 | Target Therapeutics, Inc. | Catheter guide wire |
| US5271415A (en) * | 1992-01-28 | 1993-12-21 | Baxter International Inc. | Guidewire extension system |
| US5259393A (en) * | 1992-05-13 | 1993-11-09 | Cordis Corporation | Guidewire having controlled radiopacity tip |
| US5267574A (en) * | 1992-09-10 | 1993-12-07 | Cordis Corporation | Guidewire with spring and a heat shrinkable connection |
| US5606981A (en) * | 1994-03-11 | 1997-03-04 | C. R. Bard, Inc. | Catheter guidewire with radiopaque markers |
-
1993
- 1993-05-19 ES ES93810371T patent/ES2089775T3/en not_active Expired - Lifetime
- 1993-05-19 AT AT93810371T patent/ATE140159T1/en not_active IP Right Cessation
- 1993-05-19 DK DK93810371.0T patent/DK0625358T3/en active
- 1993-05-19 DE DE59303201T patent/DE59303201D1/en not_active Expired - Fee Related
- 1993-05-19 EP EP93810371A patent/EP0625358B1/en not_active Expired - Lifetime
-
1994
- 1994-03-07 US US08/207,576 patent/US5429139A/en not_active Expired - Lifetime
- 1994-03-11 AU AU57763/94A patent/AU659574B2/en not_active Ceased
- 1994-03-16 CA CA002119165A patent/CA2119165C/en not_active Expired - Fee Related
- 1994-05-19 JP JP6105618A patent/JP2737650B2/en not_active Expired - Fee Related
- 1994-08-25 US US08/295,976 patent/US5891055A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2737650B2 (en) | 1998-04-08 |
| JPH06327775A (en) | 1994-11-29 |
| ATE140159T1 (en) | 1996-07-15 |
| EP0625358A1 (en) | 1994-11-23 |
| EP0625358B1 (en) | 1996-07-10 |
| ES2089775T3 (en) | 1996-10-01 |
| US5429139A (en) | 1995-07-04 |
| AU659574B2 (en) | 1995-05-18 |
| CA2119165A1 (en) | 1994-11-20 |
| AU5776394A (en) | 1994-12-15 |
| US5891055A (en) | 1999-04-06 |
| DK0625358T3 (en) | 1996-08-05 |
| DE59303201D1 (en) | 1996-08-14 |
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| EEER | Examination request | ||
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