CA1265011A - Torsional guide wire with attenuated diameter - Google Patents
Torsional guide wire with attenuated diameterInfo
- Publication number
- CA1265011A CA1265011A CA000506946A CA506946A CA1265011A CA 1265011 A CA1265011 A CA 1265011A CA 000506946 A CA000506946 A CA 000506946A CA 506946 A CA506946 A CA 506946A CA 1265011 A CA1265011 A CA 1265011A
- Authority
- CA
- Canada
- Prior art keywords
- coil
- diameter
- guide wire
- wire
- proximal
- 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
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
- A61M25/01—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
Abstract of the Disclosure Guide wire having a progressively attenuated diameter comprising an elongated core element having proximal and distal ends and having a decreasing cross sectional area in a direction towards the distal end.
A coil is carried by and secured to said core element and has proximal and distal ends. The coil has a diameter which decreases in a direction towards the distal end. The coil is formed of a wire which has a diameter which decreases from one end to the other end and which is wound in a helix so that the larger diameter wire begins in a region closer to the proximal end and the smaller diameter wire ends in a region closer to the distal end.
A coil is carried by and secured to said core element and has proximal and distal ends. The coil has a diameter which decreases in a direction towards the distal end. The coil is formed of a wire which has a diameter which decreases from one end to the other end and which is wound in a helix so that the larger diameter wire begins in a region closer to the proximal end and the smaller diameter wire ends in a region closer to the distal end.
Description
~5~
This invention relates to guide wires ~or use with catheters and more particularly, to guide wires wi~h an attenuated diameter and having torsional control.
Guide wires heretofore have been provided, however, guide wires whlch make it possiible to penetrate small blood vessels with adequate proximal strength for ca~heter tracking capabilities as, for example, in the kidney and which still permi~ high torsional capab.ilities have not been available. There is therefore a need for a torsional attenuating diameter guide wire.
In general, it is an object of the pre~ent invention to provide a guide wire which has a progressively attenuated diameter.
The invention provides in a guide wire having a pro~ressively attenuated diameter, an elongated core element having proxiMal and distal ends and having a decreaæing cross sectional area in a direction towards the distal end, a coil carried by surrounding and secured to said core element, said coil having proximal and distal ends, said coll having a diameter which decreaseæ in a direction towards the distal end, sald coil being formed of a wire which has a diameter which decreases from one end to the other end and which is wound in a helix so that the larger diameter wire beglns ln a region closer to the proximal end and the smaller diameter wire ends in a region cloiser to the distal end.
Such a guide wire has high torsional capabilities.
' ~ 1 ., .. . ~ . ~ . , .
- . .
5(~
6294~-106 The guide wire can be provided with a small ~ip facili~a~ing deep pene~ration in~o small vessels.
The relatively large proximal dlameter facilitates tracking of the catheter while it is in use.
Features of the invention will appear from the following description in which the preferred embodiment is set forth in detail in conjunction with the accompanying drawings.
Figure 1 is a side elevational vlew of a torsional guide wire with a progressively attenuated diameter incorporating the present invention.
Figure ~ is an enlarged view of ~he distal extremity of ~he guide wire shown in Figure 1.
Figure 3 ls a side elevatlonal vlew of the core utllized in the guide wire shown ln Figure 1.
Figure 4 is a side elevational view of the wire utilized for making the tapered coil for the guide vire ln Figure 1.
Figure S is a side elevational view of the wlnding mandrel for the tapered coil in Figure 6.
Figure 6 is a side elevational view of the tapered coil made from .
~, ' ' ' ' ~,X~j50~
winding the wire oi Figure ~ on~o the mandrel of Fiyure 5.
Figure 7 is a cross sectional view of the platinum coil tiP
utilized in the guide wire shown in Figure 1.
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Figure 8 is a cross sectional view of the proximal coil utilized in the guide wire shown in Figure 1.
Figure 9 is a side elevational view of the plastic tubing utilized in the guide wire shown in Figure 1.
In general, the torsional guide wire with a progressively attenuated diameter is comprised of an elongate core element having proximal and distal ends and having a decreasing cross sectional area in a direction towards the distal end. It is also comprised of a coil carried by and secured to the core element and extends over the distal extremity o~ th~ core element. The coil has proximal and dis~al ends and has a diameter which decreases in a direction towards the distal end. The coil is formed of wire which has a diameter which decreases from one end to the other end and is wound in a helix so that the larger diameter wire begins in a region closer to the proximal end and ~0 the smaller diameter wire ends in a region closer to the distal end.
More in particular as shown in Figures 1 and 2 of the drawings, the attenuating diameter guide wire 11 consists of a core element 12. The core element 12 is shown in detail in Figure 3 and i5 formed of a suitable material such as stainless steel and has a suitable diameter such as from .015 to .025 and preferably a diameter of .020, plus or minus .0003 and having a suitable length such as 7 eet. ~he core element is provided with proximal and distal ends 13 and 14. The core element 12 is centerless ground to provide a core wire which has a decreasing cross sectional area in a direction towards the distal end. Thus as shown, the core element 12 is provlded with a cylindrical portion :
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12a which extends over a major portion of the length of the core element. A tapered por~ion 12b adjoins the portion 12a and extends over a suitable distance such as 2 1/2 centimeters and pxovides a ~aper, for example, from .020 inches to .0145 to .0155 inches and preferably a dimension of .015 inches. The remaining length of the core element is centerless ground to a dimension such as .015 inches for a length of approximately 35 centimeters. Thereafter, in a further grindin~ operation a transition region 12d is provided which over a length of approximately 2.5 centimeters provides a transi~ion from .015 to .009 to .010 inches.
The following portion 12e of approximately 10 centimeters is centerless ground to the .010 inch dimension. Thereafter an additional transitional region 12f is provided which provides a transition from .010 inches to .002 to .0025 inches. This transition extends over approximately 3 centimeters. The remaining distal extremity of the core wire as, for example, a length of approximately 2 centimeters is ground so that it has a diameter of .002 ~o .0025 inches. Thus it can be seen that a core element has been provided which has been carefully dimensioned by centerless grinding to provide a decreasing cross sectional area or a taper as hereinbefore described.
The guide wire 11 also consists of a tapered coil 16.
The coil 16 itself is shown in Figure 6. The wire 17 from which it is wound is shown in Figure 4. The mandrel 18 on which the wire 17 is wound to form the coil 16 is shown in Figure 5. The wire 17 is formed of a suitable material such as stainless steel and has a length of approximately 7 feet and a diameter of .007 inches plus or minus .0002 inches. A major portion of the wire 17 has an outer dimension of .007 but the . :- .... .
~ i ~
: ~ ; : : ` :, . ..
.; . ,.
-remainder of the wire is centerless ground ~o provide a decreasing diameter towards the distal extremity of the wire. Thus in addition to the cylindrical portion 17a there is provided a transition portion 17b of a suit-able length such as 2.5 centimeters in which there is adimension change from .007 inches to .005 inche~ for a length of approximately 60 centimeters from the distal extremity of the wire. A portion 17c of the wire has a diameter of .005 inches. ~t another portion, 17d of the wire, another transition in diameter is made over a distance of approximately 2.5 centimeters from .005 inches to .003 inches. There is then provided a portion 17e having a length of approximately 10 centi-meters which has a diameter of .003 inches.
The mandrel 18 on which the wire 17 is wound is shown in Figure 6 and is formed of a suitable material such as steel having a diameter of .019 inches extending over the portion 18a. A transition portion 18b is provided extending over 2 1/2 centimeters in which the diameter is decreased from .019 to .015 inches.
Another portion 18c is provided having a diameter of .015 inches extending up to another transition portion 18d in which the diameter is decreased to .011 inches so that the distal extremity of the mandrel provided by the portion 18e has a diameter of .011 inches and a length of approximately 12.5 centimeters.
, The coil or coil section 16 is then formed by taking the wire 17 and taking the end of the smallest diameter and starting it on the mandrel at the point 21 and progressively winding the wire onto the mandrel 18 in a helix in a direction towards the larger diameter end over a distance of approximately 15.5 centimeters.
Thus, the larger diameter wire begins in a region . .
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closer to the proximal end and the smaller diameter wire ends in a region closer to ~he distal end of the coil 16. After the winding has been completed, the core or coil section 16 can be removed from the mandrel and trimmed to length. The proximal and distal ends of the coil 16 can be stretched apart slightly so that the ends can be screwed together with other coils or coil sections as hereinafter described.
The coil section 23 which forms the tip of the guide wire ll is formed of a suitable wire such as a platinum alloy having a diameter of .003 inches plus or minus .0002 inches. This wire 11 is 3 centimeters plus or minus one millimeter and having an outside diameter of approximately .018 inches maximum. The interior diameter corresponds to the diameter of the mandrel which is approximately .011 inches. One end of the coil 23 is stretched so as it make it possible to screw into another coil end as hereinafter described.
The coil or coil section 16 after being wound or removed from the mandrel is formed so that it is provided with a portion 16a having an outside diameter of approximately .035 inches, another portion 16b ~5 having an outside diameter of approximately .027 inches and a distal extremity 16c having an outside diameter of approximately .018 inches.
Another core or coil section 26 is provided which can be identified as the proximal coil. This coil is formed by winding a suitable material such as stainless steel wire having a diameter of .007 inches on the portion 18a of the mandrel 18 having a diameter of .019 inches. The coil 26 is then coa~ed with a suitable plastic material such as Teflon and is cut to a l~Rc~J~ r . .
S~
suitable length, as for example, 81.5 c~ntimeters with one centimeter of the same near the distal extremity being uncoa~ed and stretched for a screw together brazed joint as hereinafter descrihed.
The guide wire 11 al50 includes a length of shrink tubing 31 having a suitable length as, for example, 45 centimeters as shown in Figure 9 and having an outside diameter of approximately .41 inches and an inside diameter of approximately .026 inches.
With these fabricated components hereinbefore de-scribed, the guide wire may now be assembled. To start the assembly, the shrink tubing 31 is taken and is shrunk down onto the ground core element 12 approximately 100 centimeters from the distal tip of the core element 12. This can be accomplished in any suitable manner as, for example, by a batch process or by individual treatment of the shrink tu~ing with heat.
~0 The Teflon coated coil 26 i5 then placed on the core element 12 and bonded to the core element 12 at the point at which it is juxtaposed to the distal extremity of the shrink tubing 31 by the use of a suitable material such as Cyanoacrylate. The coil or coil section 16 is then positioned on the core element 12 and its proximal extremity is threaded into the distal extremity of the Teflon coated coil 26 and thereafter a brazed joint 33 is formed to bond the juxtaposed ends of the coil 16 to the coil 26. The screw together joint 33 with the brazing is shown in Figure 2. A gold alloy 33 can be utilized to form the joint 33. The use of gold which is radiopaque permits the doctor to see where the .035 portion of the guide wire 11 starts by the use of a fluoroscope. The coil 16 when so positioned on th~ core element 12 has its larger : : , ., ;: -, . : :. ; . .
. ;: , ~. ::
~ : ; .. ~ , ` ,. ' diameter wire beginning in a region closer to the proximal end and its smaller diameter wire ~nding in a region closer to the distal end.
The platinum coil 23 i5 then taken and its proximal extremity is positioned on the core element 12 and threaded into the distal extremity of the coil or coil section 16. After they have been screwed together, a suitable solder can be utilized for forming a joint 34 between the juxtaposed ends of the coils 23 and 16 and also to bond the same to the distal extremity of the core element 12. A tip 36 which has a rounded configuration is then provided on the distal extremity of the platinum coil 23.
After these assembly operations been completed, a torquer 38 of a conventional construction is mounted on the proximal extremity of the polyethyl~ne shrink tubing 31. The torquer 38 firmly grasps ~he guide wire 11 and makes it possible for a physician by use of a hand to apply torque to the guide wire. The guide wire can have a suitable overall length as, for example, a length of 145 centimeters.
The operation and use of the guide wire 11 is very similar to that for other guide wires. It, how~ver, has numerous characteristics which are particularly adapted to particular types of operations as, for example, where it is desired to make deeper penetration into the kidney of the human body. It also has a very small diameter tip while still having a relatively large diameter proximal to the tip to facilitate tracking of the catheter under the fluoroscope. The tapering of the coils or coil sections is particularly important and is madè possible by the use of a tapered ' ".: ' . '' ' `,:
, .
: ,. , ;
.~: : : .
. : :
. :.: . - : . .
~X~i50~
g wire which is utilized for ~orming the tapered coil or coil se~tions. In addition, the screw together joints between the coil sections provides for transitions between the coil sections while still providing a smooth exterior circumferential surface.
It is apparent from the foregoing that there has been provided a new and improved guide wire which has a progressively attenuated diameter and which has good torsional capabilities. It also has a construction which can be economically manufactured in quantity with great precision. Even though a tapered tip sub assembly has been provided in connection with a Teflon coated coil and polyethylene shrink tubing, there is a very smooth transition provided between the different materials utilized in the guide wire facilitating its use in connection with small vessels in humans.
:
, :
:
:
This invention relates to guide wires ~or use with catheters and more particularly, to guide wires wi~h an attenuated diameter and having torsional control.
Guide wires heretofore have been provided, however, guide wires whlch make it possiible to penetrate small blood vessels with adequate proximal strength for ca~heter tracking capabilities as, for example, in the kidney and which still permi~ high torsional capab.ilities have not been available. There is therefore a need for a torsional attenuating diameter guide wire.
In general, it is an object of the pre~ent invention to provide a guide wire which has a progressively attenuated diameter.
The invention provides in a guide wire having a pro~ressively attenuated diameter, an elongated core element having proxiMal and distal ends and having a decreaæing cross sectional area in a direction towards the distal end, a coil carried by surrounding and secured to said core element, said coil having proximal and distal ends, said coll having a diameter which decreaseæ in a direction towards the distal end, sald coil being formed of a wire which has a diameter which decreases from one end to the other end and which is wound in a helix so that the larger diameter wire beglns ln a region closer to the proximal end and the smaller diameter wire ends in a region cloiser to the distal end.
Such a guide wire has high torsional capabilities.
' ~ 1 ., .. . ~ . ~ . , .
- . .
5(~
6294~-106 The guide wire can be provided with a small ~ip facili~a~ing deep pene~ration in~o small vessels.
The relatively large proximal dlameter facilitates tracking of the catheter while it is in use.
Features of the invention will appear from the following description in which the preferred embodiment is set forth in detail in conjunction with the accompanying drawings.
Figure 1 is a side elevational vlew of a torsional guide wire with a progressively attenuated diameter incorporating the present invention.
Figure ~ is an enlarged view of ~he distal extremity of ~he guide wire shown in Figure 1.
Figure 3 ls a side elevatlonal vlew of the core utllized in the guide wire shown ln Figure 1.
Figure 4 is a side elevational view of the wire utilized for making the tapered coil for the guide vire ln Figure 1.
Figure S is a side elevational view of the wlnding mandrel for the tapered coil in Figure 6.
Figure 6 is a side elevational view of the tapered coil made from .
~, ' ' ' ' ~,X~j50~
winding the wire oi Figure ~ on~o the mandrel of Fiyure 5.
Figure 7 is a cross sectional view of the platinum coil tiP
utilized in the guide wire shown in Figure 1.
:: :: : :
. ~ ~
; ~ : : : :
Figure 8 is a cross sectional view of the proximal coil utilized in the guide wire shown in Figure 1.
Figure 9 is a side elevational view of the plastic tubing utilized in the guide wire shown in Figure 1.
In general, the torsional guide wire with a progressively attenuated diameter is comprised of an elongate core element having proximal and distal ends and having a decreasing cross sectional area in a direction towards the distal end. It is also comprised of a coil carried by and secured to the core element and extends over the distal extremity o~ th~ core element. The coil has proximal and dis~al ends and has a diameter which decreases in a direction towards the distal end. The coil is formed of wire which has a diameter which decreases from one end to the other end and is wound in a helix so that the larger diameter wire begins in a region closer to the proximal end and ~0 the smaller diameter wire ends in a region closer to the distal end.
More in particular as shown in Figures 1 and 2 of the drawings, the attenuating diameter guide wire 11 consists of a core element 12. The core element 12 is shown in detail in Figure 3 and i5 formed of a suitable material such as stainless steel and has a suitable diameter such as from .015 to .025 and preferably a diameter of .020, plus or minus .0003 and having a suitable length such as 7 eet. ~he core element is provided with proximal and distal ends 13 and 14. The core element 12 is centerless ground to provide a core wire which has a decreasing cross sectional area in a direction towards the distal end. Thus as shown, the core element 12 is provlded with a cylindrical portion :
: - :: . - . . . .
: . : . : : :. :
' ~ '~ , "' ' ': '`': , '., ' : , . :; .
: : ; ;: .
12a which extends over a major portion of the length of the core element. A tapered por~ion 12b adjoins the portion 12a and extends over a suitable distance such as 2 1/2 centimeters and pxovides a ~aper, for example, from .020 inches to .0145 to .0155 inches and preferably a dimension of .015 inches. The remaining length of the core element is centerless ground to a dimension such as .015 inches for a length of approximately 35 centimeters. Thereafter, in a further grindin~ operation a transition region 12d is provided which over a length of approximately 2.5 centimeters provides a transi~ion from .015 to .009 to .010 inches.
The following portion 12e of approximately 10 centimeters is centerless ground to the .010 inch dimension. Thereafter an additional transitional region 12f is provided which provides a transition from .010 inches to .002 to .0025 inches. This transition extends over approximately 3 centimeters. The remaining distal extremity of the core wire as, for example, a length of approximately 2 centimeters is ground so that it has a diameter of .002 ~o .0025 inches. Thus it can be seen that a core element has been provided which has been carefully dimensioned by centerless grinding to provide a decreasing cross sectional area or a taper as hereinbefore described.
The guide wire 11 also consists of a tapered coil 16.
The coil 16 itself is shown in Figure 6. The wire 17 from which it is wound is shown in Figure 4. The mandrel 18 on which the wire 17 is wound to form the coil 16 is shown in Figure 5. The wire 17 is formed of a suitable material such as stainless steel and has a length of approximately 7 feet and a diameter of .007 inches plus or minus .0002 inches. A major portion of the wire 17 has an outer dimension of .007 but the . :- .... .
~ i ~
: ~ ; : : ` :, . ..
.; . ,.
-remainder of the wire is centerless ground ~o provide a decreasing diameter towards the distal extremity of the wire. Thus in addition to the cylindrical portion 17a there is provided a transition portion 17b of a suit-able length such as 2.5 centimeters in which there is adimension change from .007 inches to .005 inche~ for a length of approximately 60 centimeters from the distal extremity of the wire. A portion 17c of the wire has a diameter of .005 inches. ~t another portion, 17d of the wire, another transition in diameter is made over a distance of approximately 2.5 centimeters from .005 inches to .003 inches. There is then provided a portion 17e having a length of approximately 10 centi-meters which has a diameter of .003 inches.
The mandrel 18 on which the wire 17 is wound is shown in Figure 6 and is formed of a suitable material such as steel having a diameter of .019 inches extending over the portion 18a. A transition portion 18b is provided extending over 2 1/2 centimeters in which the diameter is decreased from .019 to .015 inches.
Another portion 18c is provided having a diameter of .015 inches extending up to another transition portion 18d in which the diameter is decreased to .011 inches so that the distal extremity of the mandrel provided by the portion 18e has a diameter of .011 inches and a length of approximately 12.5 centimeters.
, The coil or coil section 16 is then formed by taking the wire 17 and taking the end of the smallest diameter and starting it on the mandrel at the point 21 and progressively winding the wire onto the mandrel 18 in a helix in a direction towards the larger diameter end over a distance of approximately 15.5 centimeters.
Thus, the larger diameter wire begins in a region . .
.. ,,, , .,.~ ... ..
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., , - . ; ,, :-, ~ , :
, :. :~:
: : :: . , , .
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: ~ . : ~ ..
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closer to the proximal end and the smaller diameter wire ends in a region closer to ~he distal end of the coil 16. After the winding has been completed, the core or coil section 16 can be removed from the mandrel and trimmed to length. The proximal and distal ends of the coil 16 can be stretched apart slightly so that the ends can be screwed together with other coils or coil sections as hereinafter described.
The coil section 23 which forms the tip of the guide wire ll is formed of a suitable wire such as a platinum alloy having a diameter of .003 inches plus or minus .0002 inches. This wire 11 is 3 centimeters plus or minus one millimeter and having an outside diameter of approximately .018 inches maximum. The interior diameter corresponds to the diameter of the mandrel which is approximately .011 inches. One end of the coil 23 is stretched so as it make it possible to screw into another coil end as hereinafter described.
The coil or coil section 16 after being wound or removed from the mandrel is formed so that it is provided with a portion 16a having an outside diameter of approximately .035 inches, another portion 16b ~5 having an outside diameter of approximately .027 inches and a distal extremity 16c having an outside diameter of approximately .018 inches.
Another core or coil section 26 is provided which can be identified as the proximal coil. This coil is formed by winding a suitable material such as stainless steel wire having a diameter of .007 inches on the portion 18a of the mandrel 18 having a diameter of .019 inches. The coil 26 is then coa~ed with a suitable plastic material such as Teflon and is cut to a l~Rc~J~ r . .
S~
suitable length, as for example, 81.5 c~ntimeters with one centimeter of the same near the distal extremity being uncoa~ed and stretched for a screw together brazed joint as hereinafter descrihed.
The guide wire 11 al50 includes a length of shrink tubing 31 having a suitable length as, for example, 45 centimeters as shown in Figure 9 and having an outside diameter of approximately .41 inches and an inside diameter of approximately .026 inches.
With these fabricated components hereinbefore de-scribed, the guide wire may now be assembled. To start the assembly, the shrink tubing 31 is taken and is shrunk down onto the ground core element 12 approximately 100 centimeters from the distal tip of the core element 12. This can be accomplished in any suitable manner as, for example, by a batch process or by individual treatment of the shrink tu~ing with heat.
~0 The Teflon coated coil 26 i5 then placed on the core element 12 and bonded to the core element 12 at the point at which it is juxtaposed to the distal extremity of the shrink tubing 31 by the use of a suitable material such as Cyanoacrylate. The coil or coil section 16 is then positioned on the core element 12 and its proximal extremity is threaded into the distal extremity of the Teflon coated coil 26 and thereafter a brazed joint 33 is formed to bond the juxtaposed ends of the coil 16 to the coil 26. The screw together joint 33 with the brazing is shown in Figure 2. A gold alloy 33 can be utilized to form the joint 33. The use of gold which is radiopaque permits the doctor to see where the .035 portion of the guide wire 11 starts by the use of a fluoroscope. The coil 16 when so positioned on th~ core element 12 has its larger : : , ., ;: -, . : :. ; . .
. ;: , ~. ::
~ : ; .. ~ , ` ,. ' diameter wire beginning in a region closer to the proximal end and its smaller diameter wire ~nding in a region closer to the distal end.
The platinum coil 23 i5 then taken and its proximal extremity is positioned on the core element 12 and threaded into the distal extremity of the coil or coil section 16. After they have been screwed together, a suitable solder can be utilized for forming a joint 34 between the juxtaposed ends of the coils 23 and 16 and also to bond the same to the distal extremity of the core element 12. A tip 36 which has a rounded configuration is then provided on the distal extremity of the platinum coil 23.
After these assembly operations been completed, a torquer 38 of a conventional construction is mounted on the proximal extremity of the polyethyl~ne shrink tubing 31. The torquer 38 firmly grasps ~he guide wire 11 and makes it possible for a physician by use of a hand to apply torque to the guide wire. The guide wire can have a suitable overall length as, for example, a length of 145 centimeters.
The operation and use of the guide wire 11 is very similar to that for other guide wires. It, how~ver, has numerous characteristics which are particularly adapted to particular types of operations as, for example, where it is desired to make deeper penetration into the kidney of the human body. It also has a very small diameter tip while still having a relatively large diameter proximal to the tip to facilitate tracking of the catheter under the fluoroscope. The tapering of the coils or coil sections is particularly important and is madè possible by the use of a tapered ' ".: ' . '' ' `,:
, .
: ,. , ;
.~: : : .
. : :
. :.: . - : . .
~X~i50~
g wire which is utilized for ~orming the tapered coil or coil se~tions. In addition, the screw together joints between the coil sections provides for transitions between the coil sections while still providing a smooth exterior circumferential surface.
It is apparent from the foregoing that there has been provided a new and improved guide wire which has a progressively attenuated diameter and which has good torsional capabilities. It also has a construction which can be economically manufactured in quantity with great precision. Even though a tapered tip sub assembly has been provided in connection with a Teflon coated coil and polyethylene shrink tubing, there is a very smooth transition provided between the different materials utilized in the guide wire facilitating its use in connection with small vessels in humans.
:
, :
:
:
Claims (9)
1. In a guide wire having a progressively attenuated diameter, an elongated core element having proximal and distal ends and having a decreasing cross sectional area in a direction towards the distal end, a coil carried by surrounding and secured to said core element, said coil having proximal and distal ends, said coil having a diameter which decreases in a direction towards the distal end, said coil being formed of a wire which has a diameter which decreases from one end to the other end and which is wound in a helix so that the larger diameter wire begins in a region closer to the proximal end and the smaller diameter wire ends in a region closer to the distal end.
2. A guide wire as in Claim 1 together with an additional coil formed of a radiopaque material having an end juxtaposed to the distal extremity of the first named coil.
3. A guide wire as in Claim 2 wherein said additional coil has a substantially uniform diameter together with a rounded tip carried by the distal extremity of the additional coil.
4. A guide wire as in Claim 3 wherein the juxtaposed ends of the first named and additional coils are screwed together and are bonded to the core element.
5. A guide wire as in Claim 2, together with a second additional coil having proximal and distal ends carried by the core element and having its distal end juxtaposed to the proximal end of the first named coil and means forming a bond between the juxtaposed ends of the first named and second additional coil and the core element.
6. A guide wire as in Claim 5 wherein said second additional coil is covered with a plastic coating.
7. A guide wire as in Claim 5 together with polyethylene tubing carried by the proximal extremity of the core element and having its distal extremity juxtaposed to the proximal extremity of the second additional coil.
8. A guide wire as in Claim 1 wherein said elongated core element has cylindrical portions of different diameters and tapered portions of different diameters adjoining said cylindrical portions.
9. A guide wire as in Claim 8 wherein said coil is formed of a wire having cylindrical portions of different diameters with tapered portions of different diameters adjoining the same.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/724,624 US4619274A (en) | 1985-04-18 | 1985-04-18 | Torsional guide wire with attenuated diameter |
| US724,624 | 1985-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1265011A true CA1265011A (en) | 1990-01-30 |
Family
ID=24911176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000506946A Expired CA1265011A (en) | 1985-04-18 | 1986-04-17 | Torsional guide wire with attenuated diameter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4619274A (en) |
| EP (1) | EP0200430B1 (en) |
| JP (1) | JPH0611339B2 (en) |
| CA (1) | CA1265011A (en) |
| DE (1) | DE3670001D1 (en) |
Families Citing this family (208)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US10391274B2 (en) | 2016-07-07 | 2019-08-27 | Brian Giles | Medical device with distal torque control |
| EP3565511B1 (en) | 2017-01-06 | 2023-10-18 | Incept, LLC | Thromboresistant coatings for aneurysm treatment devices |
| EP3760272B1 (en) * | 2018-03-01 | 2023-05-10 | Beijing Bywave Sensing Technology Co., LTD | Pressure guide wire |
| US11395665B2 (en) | 2018-05-01 | 2022-07-26 | Incept, Llc | Devices and methods for removing obstructive material, from an intravascular site |
| CN112203593A (en) | 2018-05-01 | 2021-01-08 | 因赛普特有限责任公司 | Device and method for removing occlusive material from an intravascular site |
| US11471582B2 (en) | 2018-07-06 | 2022-10-18 | Incept, Llc | Vacuum transfer tool for extendable catheter |
| US11517335B2 (en) | 2018-07-06 | 2022-12-06 | Incept, Llc | Sealed neurovascular extendable catheter |
| US11452533B2 (en) | 2019-01-10 | 2022-09-27 | Abbott Cardiovascular Systems Inc. | Guide wire tip having roughened surface |
| US11766539B2 (en) | 2019-03-29 | 2023-09-26 | Incept, Llc | Enhanced flexibility neurovascular catheter |
| EP4044906A4 (en) | 2019-10-15 | 2023-05-24 | Imperative Care, Inc. | Systems and methods for multivariate stroke detection |
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| WO2021127004A1 (en) | 2019-12-18 | 2021-06-24 | Imperative Care, Inc. | Methods and systems for treating venous thromboembolic disease |
| US11457936B2 (en) | 2019-12-18 | 2022-10-04 | Imperative Care, Inc. | Catheter system for treating thromboembolic disease |
| WO2021183444A1 (en) | 2020-03-10 | 2021-09-16 | Imperative Care, Inc. | Enhanced flexibility neurovascular catheter |
| US11207497B1 (en) | 2020-08-11 | 2021-12-28 | Imperative Care, Inc. | Catheter with enhanced tensile strength |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE522204C (en) * | 1931-04-01 | Maurycy Lubelski Dr | Special for the expansion of constrictions in the feeding pipe | |
| US3789841A (en) * | 1971-09-15 | 1974-02-05 | Becton Dickinson Co | Disposable guide wire |
| US4020829A (en) * | 1975-10-23 | 1977-05-03 | Willson James K V | Spring guide wire with torque control for catheterization of blood vessels and method of using same |
| JPS5935705B2 (en) * | 1982-07-19 | 1984-08-30 | 旭大隈産業株式会社 | Continuous feeding method of wire rod for heading machine |
| JPS5916649U (en) * | 1982-07-23 | 1984-02-01 | ハナコ・メディカル株式会社 | Improvement of lead wire for super selective angiography |
| 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 |
| CA1232814A (en) * | 1983-09-16 | 1988-02-16 | Hidetoshi Sakamoto | Guide wire for catheter |
-
1985
- 1985-04-18 US US06/724,624 patent/US4619274A/en not_active Expired - Lifetime
-
1986
- 1986-04-17 DE DE8686302895T patent/DE3670001D1/en not_active Expired - Lifetime
- 1986-04-17 EP EP86302895A patent/EP0200430B1/en not_active Expired
- 1986-04-17 CA CA000506946A patent/CA1265011A/en not_active Expired
- 1986-04-18 JP JP61089855A patent/JPH0611339B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0611339B2 (en) | 1994-02-16 |
| JPS62363A (en) | 1987-01-06 |
| DE3670001D1 (en) | 1990-05-10 |
| EP0200430B1 (en) | 1990-04-04 |
| US4619274A (en) | 1986-10-28 |
| EP0200430A1 (en) | 1986-11-05 |
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| Date | Code | Title | Description |
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| MKLA | Lapsed |