CN201275354Y - Medical conducting wire - Google Patents
Medical conducting wire Download PDFInfo
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- CN201275354Y CN201275354Y CNU2008201227597U CN200820122759U CN201275354Y CN 201275354 Y CN201275354 Y CN 201275354Y CN U2008201227597 U CNU2008201227597 U CN U2008201227597U CN 200820122759 U CN200820122759 U CN 200820122759U CN 201275354 Y CN201275354 Y CN 201275354Y
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- changeover portion
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- guide wire
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Abstract
The utility model relates to a medical wire, which consists of three segments of core wires with different diameters and performances, and an outer structure wrapping the core wires. By selecting different materials, shapes and connection manners for the three segment of core wires, the medical wire can solve the problems existing in the prior art, and can achieve high strength at near end of the wire, high elasticity at the intermediate end, and good plasticity at the distal end. In addition, the medical wire has improved smooth degree and enhanced penetrating force by selecting different materials and connection and application manners for the outer structure.
Description
Technical field
This utility model relates in checking and treating, directly or by blood vessel inserts the lead that the intravital conduit of people adopts for guiding.
Background technology
Because the medical act at human body causes very big burden to the patient, so people directly insert medical apparatus such as conduit in the body cavity, and under this state, check and treat, in order to replace cutting operation in the past.When such use conduit, lead is passed being directed in the conduit of body target site, under the guiding of lead, conduit is imported target site.
Yet, at present at picture PTCA (Percutaneas Transluminal CoronaryAngioplasty, percutaneous tranluminal coronary angioplasty) in the intervene operation, conduit and support often can't or be difficult to be sent to serious obstruction or sharp-pointed lesion locations of turning.Wherein the key of problem is the design of conduit and lead.The adjusting power of lead, compliance, propelling movement power and support force have determined the quality of lead function.
Lead generally takes a core to constitute from the near-end to the far-end, if improve the operability of lead, core adopts the higher material of intensity more, but the far-end of lead will be lost flexibility like this.If for the compliance that improves lead just needs to adopt the lower material of intensity, but will lose the operability of lead proximal end like this, and such lead in use is easy to generate expendable distortion.So lead in the past is difficult to have both simultaneously needed flexibility of operation and operability.
In order to improve these unfavorable factors, people have connected one section Ni-Ti alloy silk in core, and for the operability that keeps near-end and the compliance of far-end, are replaced by transition silk Ni-Ti alloy silk near most advanced and sophisticated position part rustless steel lead at lead.The operability of lead and flexibility have all reached a good level like this, and in use not flexible damage.But the welding of stainless steel silk and Ni-Ti silk is difficulty very, and intensity is very poor.So people have taked telescopic joint way again.But the telescopic joint not high problem of intensity that also exists, and all there are the problem that is difficult to obtain enough torque transfer in these two kinds of methods, still do not reach gratifying degree like this in the design of lead.
The utility model content
The purpose of this utility model provides a kind of medical guide wire, make lead reach required intensity, flexibility and elasticity on the whole by the formation of adjusting different parts on the wire stylet silk, in order to solve the lead that can not be satisfied better operability, flexibility and torsional property simultaneously that exists in the prior art, make conductive line surfaces smooth by the different layer structure of parcel on the core silk, increase penetration capacity.
In order to achieve the above object, this utility model provides a kind of medical guide wire, comprise the core silk and be wrapped in layer structure on the described core silk, described core silk is by the supporting section of cylindrical raw silk rings shape, the tapered changeover portion that links to each other with described supporting section one end, and the moulding section composition that is flat, described moulding section links to each other with the thinner end of described changeover portion.
Wherein, the supporting section of described core silk, changeover portion and moulding section are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.
Wherein, the supporting section of described core silk, changeover portion and moulding section are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material, the Maraging steel respectively.
Wherein, the mode of attenuating of described changeover portion is streamlined rounding off or transition or streamlined and segmentation transition stage by stage stage by stage.
Wherein, described layer structure comprises:
Be wrapped in the polytetrafluorethylecoatings coatings of the supporting section outer surface of described core silk;
Be wrapped in changeover portion and moulding section outer solenoid of described core silk; And the hydrophilic coating that is coated in described solenoid outside.
Wherein, described layer structure comprises:
Be wrapped in the polytetrafluorethylecoatings coatings of the supporting section outer surface of described core silk;
Be wrapped in changeover portion and moulding section outer macromolecule integument and solenoid of described core silk; And
Be coated on the hydrophilic coating of described macromolecule integument and solenoid outside.
Wherein, described layer structure comprises:
Be wrapped in changeover portion and moulding section outer solenoid of described core silk;
Be coated on the supporting section outer surface of described core silk and the macromolecule integument of solenoid outer surface; And
Be coated in the hydrophilic coating on the described macromolecule integument.
Wherein, described solenoid comprises first solenoid and second solenoid, and described first solenoid, one end is welded in the changeover portion of described core silk, and the other end and the second solenoidal near-end alternately twine, the described second solenoidal far-end and the welding of core silk distal tip, and form smooth hemisphere.
Wherein, described first solenoid and the second solenoidal part of alternately twining utilize the cored solder welding to form solder joint.
Wherein, described first solenoid is by the stainless steel filament coiled, and described second solenoid is by platinum alloy or tungsten alloy filament coiled.
Wherein, described lead entire outer diameter unanimity.
Wherein, described lead entire outer diameter is 0.3mm-0.9mm.
Medical guide wire provided by the utility model, its core silk is divided into supporting section, changeover portion and moulding section three part by diameter, by shape, constituent material and the physical property of regulating described three parts, make lead when improving intensity, guarantee its flexibility and operability; In addition,, improved the smooth surface degree of lead, strengthened penetration capacity by in core silk outer wrapping materials with different properties.
Description of drawings
Fig. 1 is a kind of structural representation of this utility model medical guide wire;
Fig. 2 is second kind of structural representation of this utility model medical guide wire;
Fig. 3 is the third structural representation of this utility model medical guide wire;
Fig. 4 is the 4th a kind of structural representation of this utility model medical guide wire;
Fig. 5 is the 5th a kind of structural representation of this utility model medical guide wire;
Fig. 6 is the 6th a kind of structural representation of this utility model medical guide wire;
Fig. 7 is the partial enlarged drawing of Fig. 1;
Fig. 8 is the partial enlarged drawing of Fig. 3;
Fig. 9 is the partial enlarged drawing of Fig. 6;
Figure 10 is the streamlined transition structure sketch map of this utility model medical guide wire;
Figure 11 is the sketch map of transition structure stage by stage of this utility model medical guide wire;
Figure 12 is the streamlined transition structure of this utility model medical guide wire and transition structure segmentation transition structure sketch map stage by stage.
Among the figure: 1, core silk; 2, solenoid; 3, hydrophilic coating; 4, hemisphere; 11, supporting section; 12, changeover portion; 13, moulding section; 21, first solenoid; 22, second solenoid; 23, solder joint; 24, macromolecule integument.
The specific embodiment
Following examples are used to illustrate this utility model, but are not used for limiting scope of the present utility model.
This utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 thinner end with described changeover portion 12 links to each other.The mode of attenuating of described changeover portion 12 is streamlined rounding off (see figure 10) or transition stage by stage (seeing Figure 11) or streamlined and segmentation transition stage by stage (seeing Figure 12).
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material.Described supporting section 11, when changeover portion 12 and moulding section 13 adopt different materials respectively, as, supporting section 11 is taked stainless steel material, the higher materials of yield strength such as titanium alloy material or cobalt-based material, changeover portion 12 is taked elastomeric memorial alloy or elastomeric stainless steel material, as the 304V stainless steel material, copper-based alloy material, super martensite stainless steel material and Maraging steel material, moulding section 13 stainless steel material of taking plastic type, at this moment, described supporting section 11, can reach desired intensity by being welded to connect between changeover portion 12 and moulding section 13.Described supporting section 11 and described changeover portion 12 are taked commaterial, and moulding section 13 when taking another material, supporting section 11 can make it have higher-strength by heat treatment, changeover portion 12 makes its intensity reduce elasticity through Overheating Treatment to be increased, selectable material has 304V stainless steel material, Co-base alloy material, titanium alloy material, nickel-titanium alloy material, super martensite stainless steel material and Maraging steel material etc., can take mouldable stainless steel material for moulding section 13.When supporting section 11 is taked a kind of material, when changeover portion 12 and moulding section 13 are taked another material, supporting section 11 can be taked the higher material of yield strength, comprise 304V stainless steel material, Co-base alloy material or super martensite stainless steel material, changeover portion 12 and moulding section 13 can be taked 304V stainless steel material, Co-base alloy material, super martensite stainless steel material and Maraging steel material, requirement this moment is heat-treated changeover portion 12 its elasticity is increased, and its far-end intensity reduction, plasticity are increased.When the supporting section 11 of described core silk, changeover portion 12 and moulding section 13 utilize commaterial to make, take different processing modes to make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases at the different sections of core silk.
Described layer structure is the polytetrafluorethylecoatings coatings that is wrapped in supporting section 11 outer surfaces of described core silk, is wrapped in changeover portion 12 and moulding section 13 outer solenoid 2 of described core silk, and the hydrophilic coating 3 that is coated in described solenoid 2 outsides.
Described layer structure also can be the polytetrafluorethylecoatings coatings that is wrapped in supporting section 11 outer surfaces of described core silk, be wrapped in changeover portion 12 and moulding section 13 outer macromolecule integument 24 and solenoid 2 of described core silk, and the hydrophilic coating 3 that is coated on described macromolecule integument 24 and solenoid 2 outsides.
Described layer structure can also be changeover portion 12 and the moulding section 13 outer solenoid 2 that is wrapped in described core silk, be coated on supporting section 11 outer surfaces of described core silk and the macromolecule integument 24 of solenoid 2 outer surfaces, and be coated in the hydrophilic coating 3 on the described macromolecule integument 24.
Described solenoid comprises first solenoid 21 and second solenoid 22, described first solenoid, 21 1 ends are welded in the changeover portion 12 of described core silk, the near-end of the other end and second solenoid 22 alternately twines, the far-end of described second solenoid 22 and the welding of core silk distal tip, and form smooth hemisphere 4.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
As shown in Figure 1, this embodiment of the present utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 thinner end with described changeover portion 12 links to each other, and the mode that attenuates of described changeover portion 12 is for attenuating stage by stage gradually.
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material and the Maraging steel material respectively.At the material operating position of the different sections of core silk, take different heat treatment modes respectively, make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases.
Described layer structure is the polytetrafluorethylecoatings coatings that is wrapped in supporting section 11 outer surfaces of described core silk, is wrapped in changeover portion 12 and moulding section 13 outer solenoid 2 of described core silk, and the hydrophilic coating 3 that is coated in described solenoid 2 outsides.See partial enlarged drawing Fig. 7 of Fig. 1 in detail.
Described solenoid 2 comprises first solenoid 21 and second solenoid 22, described first solenoid 21 begins to be enclosed within on the core silk from the first tapering end of changeover portion 12, end at changeover portion 12, the near-end of second solenoid 22 and first solenoid 21 alternately twine and are welded together to form solder joint 23 with soldering, the far-end of described second solenoid 22 and the welding of core silk distal tip, and form smooth hemisphere 4.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
As shown in Figure 2, this embodiment of the present utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 with the axis of described changeover portion 12 not point-blank, the mode that attenuates of described changeover portion 12 is for attenuating stage by stage gradually.
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are selected from any one in 304V stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material and the Maraging steel material respectively.At the material operating position of the different sections of core silk, take different heat treatment modes respectively, make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases.
Described layer structure is the polytetrafluorethylecoatings coatings that is wrapped in supporting section 11 outer surfaces of described core silk, is wrapped in changeover portion 12 and moulding section 13 outer solenoid 2 of described core silk, and the hydrophilic coating 3 that is coated in described solenoid 2 outsides.See partial enlarged drawing Fig. 7 of Fig. 1 in detail.
Described solenoid 2 comprises first solenoid 21 and second solenoid 22, described first solenoid 21 begins to be enclosed within on the core silk from the first tapering end of changeover portion 12, end at changeover portion 12, the near-end of second solenoid 22 and first solenoid 21 alternately twine, the near-end of second solenoid 22 and first solenoid 21 alternately twine, and with the far-end of the soldering changeover portion 12 that the axis is out-of-line, the winding of moulding section 13 near-end and solenoid 2 partly is welded together to form solder joint 23, the far-end of described second solenoid 22 and the welding of core silk distal tip, and form smooth hemisphere 4.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
As shown in Figure 3, this embodiment of the present utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 thinner end with described changeover portion 12 links to each other, and the mode that attenuates of described changeover portion 12 is for attenuating stage by stage gradually.
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material and the Maraging steel material respectively.At the material operating position of the different sections of core silk, take different heat treatment modes respectively, make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases.
Described layer structure comprises the polytetrafluorethylecoatings coatings of supporting section 11 outer surfaces that are wrapped in described core silk, be wrapped in changeover portion 12 and moulding section 13 outer macromolecule integument 24 and solenoid 2 of described core silk, and the hydrophilic coating 3 that is coated on described macromolecule integument 24 and solenoid 2 outsides.See partial enlarged drawing Fig. 8 of Fig. 3 in detail.
Described solenoid 2 comprises first solenoid 21 and second solenoid 22, described macromolecule integument begins to be enclosed within on the core silk from the first tapering end of changeover portion 12, first solenoid 21 begins to be enclosed within on the core silk from second tapering of changeover portion 12, end at changeover portion 12, the near-end of second solenoid 22 and first solenoid 21 alternately twine and are connected together with soldering and form solder joint 23, the far-end of described second solenoid 22 and the welding of core silk distal tip, and form smooth hemisphere 4.Surface-coated at macromolecule integument 24 and lead solenoid 2 has hydrophilic coating 3, and the supporting section of core silk is coated with the smooth layer of politef.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
As shown in Figure 4, this embodiment of the present utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 with the axis of described changeover portion 12 not point-blank, the mode that attenuates of described changeover portion 12 is for attenuating stage by stage gradually.
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material and the Maraging steel material respectively.At the material operating position of the different sections of core silk, take different heat treatment modes respectively, make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases.
Described layer structure comprises the polytetrafluorethylecoatings coatings of supporting section 11 outer surfaces that are wrapped in described core silk, be wrapped in changeover portion 12 and moulding section 13 outer macromolecule integument 24 and solenoid 2 of described core silk, and the hydrophilic coating 3 that is coated on described macromolecule integument 24 and solenoid 2 outsides.See partial enlarged drawing Fig. 8 of Fig. 3 in detail.
Described solenoid 2 comprises first solenoid 21 and second solenoid 22, described macromolecule integument begins to be enclosed within on the core silk from the first tapering end of changeover portion 12, first solenoid 21 begins to be enclosed within on the core silk from second tapering of changeover portion 12, end at changeover portion 12, the near-end of second solenoid 22 and first solenoid 21 alternately twine, and with the far-end of the soldering changeover portion 12 that the axis is out-of-line, the winding of moulding section 13 near-end and solenoid 2 partly is welded together to form solder joint 23, moulding section 13 distal tip welding of the far-end of described second solenoid 22 and core silk, and form smooth hemisphere 4.Surface-coated at macromolecule integument 24 and lead solenoid 2 has hydrophilic coating 3, and the supporting section of core silk is coated with the smooth layer of politef.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
Embodiment 5
As shown in Figure 5, this embodiment of the present utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 thinner end with described changeover portion 12 links to each other, and the mode that attenuates of described changeover portion 12 is for attenuating stage by stage gradually.
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material and the Maraging steel material respectively.At the material operating position of the different sections of core silk, take different heat treatment modes respectively, make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases.
Described layer structure is changeover portion 12 and the moulding section 13 outer solenoid 2 that is wrapped in described core silk, be coated on supporting section 11 outer surfaces of described core silk and the macromolecule integument 24 of solenoid 2 outer surfaces, and be coated in the hydrophilic coating 3 on the described macromolecule integument 24.See partial enlarged drawing Fig. 9 of Fig. 6 in detail.
Described solenoid 2 comprises first solenoid 21 and second solenoid 22, described first solenoid 21 begins to be enclosed within on the core silk from the first tapering end of changeover portion 12, end at changeover portion 12, the near-end of second solenoid 22 and first solenoid 21 alternately twine and are welded together to form solder joint 23 with soldering, the far-end of described second solenoid 22 and the welding of core silk distal tip, and form smooth hemisphere 4.Three section surfaces of described core silk are all applied by macromolecule integument 24, apply hydrophilic coating on the macromolecule integument.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
Embodiment 6
As shown in Figure 6, this embodiment of the present utility model provides a kind of medical guide wire, comprises the core silk and is wrapped in layer structure on the described core silk, and described lead entire outer diameter unanimity is 0.3mm-0.9mm.Described core silk is by the supporting section 11 of cylindrical raw silk rings shape, the tapered changeover portion 12 that links to each other with described supporting section 11 1 ends, and moulding section 13 composition that is flat.Described moulding section 13 with the axis of described changeover portion 12 not point-blank, the mode that attenuates of described changeover portion 12 is for attenuating stage by stage gradually.
The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are made by identical or different material, and described each section of core silk of different materials is by being welded to connect.The supporting section 11 of described core silk, changeover portion 12 and moulding section 13 are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material and the Maraging steel material respectively.At the material operating position of the different sections of core silk, take different heat treatment modes respectively, make that supporting section 11 intensity improve, changeover portion elasticity increases, moulding section plasticity increases.
Described layer structure is changeover portion 12 and the moulding section 13 outer solenoid 2 that is wrapped in described core silk, be coated on supporting section 11 outer surfaces of described core silk and the macromolecule integument 24 of solenoid 2 outer surfaces, and be coated in the hydrophilic coating 3 on the described macromolecule integument 24.See partial enlarged drawing Fig. 9 of Fig. 6 in detail.
Described solenoid 2 comprises first solenoid 21 and second solenoid 22, described first solenoid 21 begins to be enclosed within on the core silk from the first tapering end of changeover portion 12, end at changeover portion 12, the near-end of second solenoid 22 and first solenoid 21 alternately twine, and partly be welded together to form solder joint 23 with the far-end of the soldering changeover portion 12 that the axis is out-of-line, moulding section 13 near-end and the winding of solenoid 2, the distal tip that the far-end of described second solenoid 22 and core silk are moulding section 13 welds together, and forms smooth hemisphere 4.Three section surfaces of described core silk are all applied by macromolecule integument 24, apply hydrophilic coating on the macromolecule integument.Described first solenoid 21 is by the stainless steel filament coiled, and described second solenoid 22 is by platinum alloy or tungsten alloy filament coiled.
Above embodiment only is used to illustrate this utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (10)
1, a kind of medical guide wire, comprise the core silk and be wrapped in layer structure on the described core silk, it is characterized in that, described core silk is by the supporting section (11) of cylindrical raw silk rings shape, the tapered changeover portion (12) that links to each other with described supporting section (11) one ends, and moulding section (13) being flat that link to each other with the thinner end of described changeover portion (12) are formed.
2, medical guide wire as claimed in claim 1 is characterized in that, the supporting section of described core silk (11), changeover portion (12) and moulding section (13) are made by identical or different material, and wherein each section of the described core silk of different materials is by being welded to connect.
3, medical guide wire as claimed in claim 2, it is characterized in that the supporting section of described core silk (11), changeover portion (12) and moulding section (13) are selected from any one in stainless steel material, titanium alloy material, nickel-titanium alloy material, Co-base alloy material, the Maraging steel respectively.
4, medical guide wire as claimed in claim 3 is characterized in that, the mode of attenuating of described changeover portion (12) is streamlined rounding off or transition or streamlined and segmentation transition stage by stage stage by stage.
5, medical guide wire as claimed in claim 1 is characterized in that, described layer structure comprises:
Be wrapped in the polytetrafluorethylecoatings coatings of supporting section (11) outer surface of described core silk;
Be wrapped in changeover portion (12) and moulding section (13) outer solenoid (2) of described core silk; And be coated in the outer hydrophilic coating (3) of described solenoid (2).
6, medical guide wire as claimed in claim 1 is characterized in that, described layer structure comprises:
Be wrapped in the polytetrafluorethylecoatings coatings of supporting section (11) outer surface of described core silk;
Be wrapped in changeover portion (12) and moulding section (13) outer macromolecule integument (24) and solenoid (2) of described core silk; And be coated on the outer hydrophilic coating (3) of described macromolecule integument (24) and solenoid (2).
7, medical guide wire as claimed in claim 1 is characterized in that, described layer structure comprises:
Be wrapped in changeover portion (12) and moulding section (13) outer solenoid (2) of described core silk;
Be coated on supporting section (11) outer surface of described core silk and the macromolecule integument (24) of solenoid (2) outer surface; And be coated in hydrophilic coating (3) on the described macromolecule integument (24).
8, as each described medical guide wire among the claim 5-7, it is characterized in that, described solenoid (2) comprises first solenoid (21) and second solenoid (22), described first solenoid (21) one ends are welded in the changeover portion (12) of described core silk, the near-end of the other end and second solenoid (22) alternately twines, the far-end of described second solenoid (22) and the welding of core silk distal tip, and form smooth hemisphere (4).
9, medical guide wire as claimed in claim 8 is characterized in that, described first solenoid (21) is by the stainless steel filament coiled, and described second solenoid (22) is by platinum alloy or tungsten alloy filament coiled.
10, medical guide wire as claimed in claim 1 is characterized in that, described lead entire outer diameter unanimity is 0.3mm-0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201227597U CN201275354Y (en) | 2008-09-26 | 2008-09-26 | Medical conducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201227597U CN201275354Y (en) | 2008-09-26 | 2008-09-26 | Medical conducting wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201275354Y true CN201275354Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201227597U Expired - Lifetime CN201275354Y (en) | 2008-09-26 | 2008-09-26 | Medical conducting wire |
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| Country | Link |
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| CN (1) | CN201275354Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103330605A (en) * | 2013-03-15 | 2013-10-02 | 杭州启明医疗器械有限公司 | Sheath core and interventional device conveying system comprising same |
| CN104014067A (en) * | 2013-03-01 | 2014-09-03 | 陈世斌 | Medical guiding wire with insulating coating layer and manufacturing method of medical guiding wire |
-
2008
- 2008-09-26 CN CNU2008201227597U patent/CN201275354Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014067A (en) * | 2013-03-01 | 2014-09-03 | 陈世斌 | Medical guiding wire with insulating coating layer and manufacturing method of medical guiding wire |
| CN104014067B (en) * | 2013-03-01 | 2016-04-13 | 广州金导医疗科技有限公司 | There is medical guiding wire and the manufacture method thereof of insulating coating |
| CN103330605A (en) * | 2013-03-15 | 2013-10-02 | 杭州启明医疗器械有限公司 | Sheath core and interventional device conveying system comprising same |
| CN103330605B (en) * | 2013-03-15 | 2016-01-20 | 杭州启明医疗器械有限公司 | A kind of sheath core and comprise the intervention apparatus conveying system of this sheath core |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Tiandihexie Technology Co., Ltd. Assignor: Lepu (Beijing) Medical Equipment Co.,Ltd. Contract record no.: 2010990000499 Denomination of utility model: Medical conducting wire Granted publication date: 20090722 License type: Exclusive License Record date: 20100709 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |