CN107785107B - Multi-wire medical cable and method of making same - Google Patents
Multi-wire medical cable and method of making same Download PDFInfo
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- CN107785107B CN107785107B CN201610724642.5A CN201610724642A CN107785107B CN 107785107 B CN107785107 B CN 107785107B CN 201610724642 A CN201610724642 A CN 201610724642A CN 107785107 B CN107785107 B CN 107785107B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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Abstract
The invention discloses a method for manufacturing a multi-conductor medical cable, which comprises the following steps: manufacturing a solid cable comprising an insulating support core, an intermediate layer supported on the support core and an outer jacket layer wrapped around the intermediate layer, the intermediate layer comprising at least a plurality of wires wound around the support core; removing a section of outer sheath layer on one end of the solid cable to expose a section of middle layer on one end of the solid cable; turning and folding the exposed section of the middle layer backwards on the outer sheath layer of the solid cable to expose a section of the support core body on one end of the solid cable; and pulling the exposed length of the support core outward such that the support core is withdrawn from the solid cable, thereby obtaining a hollow multi-wire medical cable without a support core. The hollow multi-wire medical cable manufactured by the method of the present invention has good flexibility and is very convenient and comfortable to use.
Description
Technical Field
The present invention relates to a medical multi-wire cable and a method for manufacturing the same, and more particularly, to a medical multi-wire medical cable having excellent flexibility and a method for manufacturing the same.
Background
In the prior art, in order to examine a lesion in a patient's body, which is not easily found from the outside, a doctor often needs to insert a micro medical instrument, such as an electronic gastroscope or enteroscope, into the patient's body. These micro-medical devices must have power conductors for power supply and signal conductors for signal transmission. For ease of use, the power and signal conductors of these micro-medical devices are typically integrated into a single cable. Such cables integrating power and signal conductors are commonly referred to as multi-conductor medical cables.
In the prior art, such a multi-wire medical cable generally includes a support core, a plurality of power wires wound around the outer circumference of the support core, a plurality of signal wires wound around the outer circumference of the plurality of power wires, a conductive shield wrapped around the outer circumference of the plurality of signal wires, and an outer jacket layer formed on the conductive shield.
As for the existing multi-wire medical cable, because the multi-wire medical cable has the supporting core, the existing multi-wire medical cable has higher hardness and poorer flexibility. When in use, the utility model is not easy to bend, and the doctor is very inconvenient and uncomfortable to use.
Disclosure of Invention
An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.
According to one aspect of the present invention, there is provided a method of manufacturing a multi-wire medical cable, comprising the steps of:
s100: manufacturing a solid cable comprising an insulating support core, an intermediate layer supported on the support core and an outer jacket layer wrapped around the intermediate layer, the intermediate layer comprising at least a plurality of wires wound around the support core;
s200: removing a section of outer sheath layer on one end of the solid cable to expose a section of middle layer on one end of the solid cable;
s300: turning and folding the exposed section of the middle layer backwards on the outer sheath layer of the solid cable to expose a section of the support core body on one end of the solid cable; and
s400: pulling the exposed length of the support core outward such that the support core is withdrawn from the solid cable, thereby obtaining a multi-wire medical cable without a support core.
According to an exemplary embodiment of the present invention, the intermediate layer of the solid cable comprises a plurality of first wires, and the step S100 comprises the steps of:
s110: winding the plurality of first wires around an outer periphery of the support core.
According to another exemplary embodiment of the present invention, the intermediate layer of the solid cable further comprises a plurality of second wires, and the step S100 further comprises the steps of:
s120: winding the plurality of second conductive wires around the outer peripheries of the plurality of first conductive wires.
According to another exemplary embodiment of the present invention, the intermediate layer of the solid cable further comprises a first insulating tape, and the step S100 further comprises the steps of:
s130: and winding the first insulating tape around the outer peripheries of the plurality of second conductive wires.
According to another exemplary embodiment of the present invention, the intermediate layer of the solid cable further comprises a plurality of third wires, and the step S100 further comprises the steps of:
s140: winding the plurality of third conductive wires around an outer circumference of the first insulating tape.
According to another exemplary embodiment of the present invention, the intermediate layer of the solid cable further comprises a second insulating tape, and the step S100 further comprises the steps of:
s150: winding the second insulating tape around the outer peripheries of the plurality of third conductive wires.
According to another exemplary embodiment of the present invention, the intermediate layer of the solid cable further comprises a conductive shield, and the step S100 further comprises the steps of:
s160: wrapping the conductive shield around the outer perimeter of the second insulating tape; and
s170: forming the outer jacket layer on the conductive shield.
According to another exemplary embodiment of the present invention, the step S300 further comprises the steps of:
s310: and after the exposed section of the middle layer is turned backwards and folded on the outer sheath layer of the solid cable, fixing the section of the middle layer on the outer sheath layer of the solid cable by using an adhesive tape.
According to another exemplary embodiment of the present invention, the support core is made of an insulating material having a coefficient of friction of less than 0.2.
According to another exemplary embodiment of the present invention, the support core is made of fluorinated ethylene propylene, polyethylene, polypropylene, polyester, cotton or nylon.
According to another exemplary embodiment of the present invention, the plurality of first wires are wound around the support core in a twisted manner, and a lay pitch ratio of the plurality of first wires wound around the support core is within a range of 60 to 80.
According to another exemplary embodiment of the present invention, the plurality of second wires are wound around the plurality of first wires in a twisted manner, and a lay pitch ratio of the plurality of second wires wound around the plurality of first wires is within a range of 60 to 80.
According to another exemplary embodiment of the present invention, the plurality of third wires are twisted around the outer circumference of the first insulating tape, and a lay pitch ratio of the plurality of third wires wound around the outer circumference of the first insulating tape is within a range of 60 to 80.
According to another exemplary embodiment of the present invention, a tension applied to the first insulation tape when the first insulation tape is wound is 20% to 30% of a maximum tension allowed by the first insulation tape.
According to another exemplary embodiment of the present invention, a tension applied to the second insulating tape when winding the second insulating tape is 20% to 30% of a maximum tension allowed by the second insulating tape.
According to another exemplary embodiment of the present invention, the outer sheath layer is formed on the conductive shield by means of extrusion; and a predetermined gap is provided between the outer sheath layer and the conductive shield.
According to another exemplary embodiment of the present invention, a gap between the outer sheath layer and the conductive shield is in a range of 0.05mm to 0.20 mm.
According to another exemplary embodiment of the invention, the first conductor is a power conductor for transmitting power; the second wire is a signal wire used for transmitting a first signal; the third wire is a signal wire for transmitting a second signal, and the second signal is different from the first signal.
According to another exemplary embodiment of the present invention, the third wire is a low voltage differential signal wire for transmitting a low voltage differential signal.
According to another exemplary embodiment of the present invention, the conductive shield is a wire braid shield.
According to another aspect of the present invention, there is also provided a multi-wire medical cable having no supporting core for supporting wires provided in the center thereof, so that the multi-wire medical cable has a hollow structure.
According to an exemplary embodiment of the present invention, a center through hole is formed at the center of the multi-wire medical cable, and the multi-wire medical cable includes: a plurality of wires wound around the central through hole; and the outer sheath layer is wrapped on the plurality of wires.
According to an exemplary embodiment of the invention, the plurality of wires comprises a plurality of first wires which are intertwined with each other around the periphery of the central through hole.
According to another exemplary embodiment of the present invention, the plurality of conductive wires further includes a plurality of second conductive wires wound around the outer circumferences of the plurality of first conductive wires.
According to another exemplary embodiment of the invention, the multi-wire medical cable further comprises a first insulating tape wrapped around the outer circumference of the plurality of second wires.
According to another exemplary embodiment of the present invention, the plurality of wires further includes a plurality of third wires wound on an outer circumference of the first insulating tape.
According to another exemplary embodiment of the invention, the multi-wire medical cable further comprises a second insulating tape wrapped around the outer circumference of the plurality of third wires.
According to another exemplary embodiment of the invention, the multi-wire medical cable further comprises a conductive shield wrapped around an outer circumference of the second insulating tape, and the outer jacket layer is wrapped around the conductive shield.
According to another exemplary embodiment of the present invention, the plurality of first conductive wires are twisted with each other around the central through hole in a twisted manner; the plurality of second wires are wound around the plurality of first wires in a twisted manner; and the plurality of third conductive wires are wound around the outer circumference of the first insulating tape in a twisted manner.
According to another exemplary embodiment of the present invention, there is a gap between the outer jacket layer and the conductive shield.
According to another exemplary embodiment of the present invention, a gap between the outer sheath layer and the conductive shield is in a range of 0.05mm to 0.20 mm.
According to another exemplary embodiment of the invention, the first conductor is a power conductor for transmitting power; the second wire is a signal wire used for transmitting a first signal; the third wire is a signal wire for transmitting a second signal, and the second signal is different from the first signal.
According to another exemplary embodiment of the present invention, the third wire is a low voltage differential signal wire for transmitting a low voltage differential signal.
According to another exemplary embodiment of the present invention, the conductive shield is a wire braid shield.
In the foregoing embodiments according to the present invention, there is provided a method of manufacturing a hollow multi-wire medical cable without a support core, by which the hollow multi-wire medical cable manufactured has good flexibility, and is very convenient and comfortable to use.
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Drawings
FIG. 1 shows a schematic perspective view of a solid cable with a supporting core according to an exemplary embodiment of the invention;
FIG. 2 shows a schematic view of the solid cable of FIG. 1 with a section of the outer jacket layer removed from one end;
FIG. 3 shows a section of the exposed intermediate layer flipped back and folded over the outer jacket layer of the solid cable;
FIG. 4 shows a section of the exposed intermediate layer being secured to the outer jacket layer of the solid cable by tape;
FIG. 5 shows a schematic view of the support core being extracted from a solid cable;
FIG. 6 shows a schematic view of a hollow multi-wire medical cable without a support core obtained after extraction of the support core from the solid cable;
FIG. 7 shows a cross-sectional view of a solid cable with a supporting core according to an exemplary embodiment of the invention; and
fig. 8 shows a cross-sectional view of a hollow multi-wire medical cable without a supporting core according to an exemplary embodiment of the invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to one general technical concept of the present invention, there is provided a method of manufacturing a multi-wire medical cable, including the steps of: manufacturing a solid cable comprising an insulating support core, an intermediate layer supported on the support core and an outer jacket layer wrapped around the intermediate layer, the intermediate layer comprising at least a plurality of wires wound around the support core; removing a section of outer sheath layer on one end of the solid cable to expose a section of middle layer on one end of the solid cable; turning and folding the exposed section of the middle layer backwards on the outer sheath layer of the solid cable to expose a section of the support core body on one end of the solid cable; and pulling the exposed length of the support core outward such that the support core is withdrawn from the solid cable, thereby obtaining a hollow multi-wire medical cable without a support core.
Fig. 1-6 illustrate a method of manufacturing a hollow multi-wire medical cable without a support core 110. Wherein fig. 1 shows a schematic perspective view of a solid cable 100 having a supporting core 110 according to an exemplary embodiment of the present invention; FIG. 2 shows a schematic view of the solid cable 100 of FIG. 1 with a section of the outer jacket layer 130 removed from one end; FIG. 3 shows a schematic view of an exposed section of the middle layer 120 flipped over and folded over the outer jacket layer 130 of the solid cable 100; FIG. 4 shows a schematic view of an exposed section of the middle layer 120 being secured to the outer jacket layer 130 of the solid cable 100 by the tape 10; FIG. 5 shows a schematic view of the support core 110 being extracted from the solid cable 100; fig. 6 shows a schematic view of a hollow multi-wire medical cable 100' without a support core 110 obtained after extraction of the support core 110 from the solid cable 100.
The process of manufacturing the hollow multi-wire medical cable 100' shown in fig. 6 without the support core 110 will be described below with reference to fig. 1 to 6.
First, as shown in fig. 1, a solid cable 100 is manufactured, the solid cable 100 including an insulating support core 110, an intermediate layer 120 supported on the support core 110, and an outer sheath layer 130 wrapped on the intermediate layer 120. The intermediate layer 120 at least includes a plurality of wires 121, 122, 124 wound on the support core 110 (see fig. 7).
Then, as shown in fig. 2, a section of the outer jacket layer 130 on one end of the solid cable 100 is removed, leaving a section of the middle layer 120 on one end of the solid cable 100 exposed.
Then, as shown in fig. 3, the exposed length of intermediate layer 120 is turned back and folded over the outer jacket layer 130 of the solid cable 100 such that a length of support core 110 on one end of the solid cable 100 is exposed.
Then, as shown in fig. 4, after the exposed section of the intermediate layer 120 is turned over and folded back on the outer sheath layer 130 of the solid cable 100, the section of the intermediate layer 120 is fixed on the outer sheath layer 130 of the solid cable 100 using the adhesive tape 10.
Then, as shown in fig. 5, the exposed length of the support core 110 is pulled outward, so that the support core 110 is withdrawn from the solid cable 100.
Finally, as shown in fig. 6, after the support core 110 is withdrawn from the solid cable 100, a hollow multi-wire medical cable 100' without the support core 110 is obtained.
As shown in fig. 6, the center of the hollow multi-wire medical cable 100' is a through hole 101 without a supporting core 110. Thus, the hollow multi-wire medical cable 100' shown in FIG. 6 is far more flexible than the solid cable 100 shown in FIG. 1.
Fig. 7 shows a cross-sectional view of a solid cable 100 with a supporting core 110 according to an exemplary embodiment of the invention. Fig. 8 shows a cross-sectional view of a hollow multi-wire medical cable 100' without a supporting core 110 according to an exemplary embodiment of the invention.
As shown in fig. 1 to 8, in the illustrated embodiment, the intermediate layer 120 of the solid cable 100 includes a plurality of first wires 121, and the aforementioned manufacturing of one solid cable 100 includes the steps of: a plurality of first wires 121 are wound around the outer circumference of the support core 110.
As shown in fig. 1-8, in the illustrated embodiment, the intermediate layer 120 of the solid cable 100 further includes a plurality of second wires 122, and the aforementioned manufacturing of one solid cable 100 further includes the steps of: the plurality of second conductive wires 122 are wound on the outer circumferences of the plurality of first conductive wires 121.
As shown in fig. 1 to 8, in the illustrated embodiment, the middle layer 120 of the solid cable 100 further includes a first insulating tape 123, and the aforementioned manufacturing of one solid cable 100 further includes the steps of: the first insulating tape 123 is wound on the outer circumferences of the plurality of second conductive wires 122.
As shown in fig. 1-8, in the illustrated embodiment, the intermediate layer 120 of the solid cable 100 further includes a plurality of third conductive wires 124, and the aforementioned manufacturing of one solid cable 100 further includes the steps of: a plurality of third conductive wires 124 are wound on the outer circumference of the first insulating tape 123.
As shown in fig. 1 to 8, in the illustrated embodiment, the intermediate layer 120 of the solid cable 100 further includes a second insulating tape 125, and the aforementioned manufacturing of one solid cable 100 further includes the steps of: a second insulating tape 125 is wound on the outer circumference of the plurality of third conductive wires 124.
As shown in fig. 1-8, in the illustrated embodiment, the intermediate layer 120 of the solid cable 100 further includes a conductive shield 126, and the aforementioned manufacturing of one solid cable 100 further includes the steps of: wrapping the conductive shield 126 around the outer perimeter of the second insulating tape 125; and forming an outer jacket layer 130 over the conductive shield 126.
In order to enable the support core 110 to be easily extracted from the solid cable 100, in one embodiment of the present invention, the support core 110 is made of an insulating material having a coefficient of friction of less than 0.2. In this way, the friction between the support core 110 and the wires can be reduced.
In one embodiment of the present invention, the support core 110 may be made of fluorinated ethylene propylene, polyethylene, polypropylene, or polyester.
In one embodiment of the present invention, a plurality of first wires 121 are wound around the support core 110 in a twisted manner. Meanwhile, in order to enable the support core 110 to be easily drawn out of the solid cable 100, in one embodiment of the present invention, the lay pitch ratio of the plurality of first wires 121 wound around the support core 110 is within a range of 60 to 80.
In one embodiment of the present invention, the plurality of second conductive wires 122 are wound on the plurality of first conductive wires 121 in a twisted manner. Meanwhile, in order to enable the support core 110 to be easily drawn out of the solid cable 100, in one embodiment of the present invention, the lay pitch ratio of the plurality of second wires 122 wound around the plurality of first wires 121 is within a range of 60 to 80.
In one embodiment of the present invention, a plurality of third conductive wires 124 are wound around the outer circumference of the first insulating tape 123 in a twisted manner. Meanwhile, in order to enable the support core 110 to be easily drawn out of the solid cable 100, in one embodiment of the present invention, the lay pitch ratio of the plurality of third wires 124 wound on the outer circumference of the first insulating tape 123 is within a range of 60 to 80.
In one embodiment of the present invention, in order to enable the support core 110 to be easily withdrawn from the solid cable 100, a tension applied to the first insulating tape 123 when the first insulating tape 123 is wound is 20% to 30% of a maximum tension allowed by the first insulating tape 123.
In one embodiment of the present invention, in order to enable the support core 110 to be easily withdrawn from the solid cable 100, a tension applied to the second insulating tape 125 when winding the second insulating tape 125 is 20% to 30% of a maximum tension allowed by the second insulating tape 125.
In one embodiment of the present invention, the outer jacket layer 130 is formed on the conductive shield 126 by extrusion. Meanwhile, in order to enable the support core 110 to be easily drawn out of the solid cable 100, a predetermined gap is provided between the outer sheath layer 130 and the conductive shield 126.
In one embodiment of the invention, the gap between the outer jacket layer 130 and the conductive shield 126 may be in the range of 0.05mm to 0.20 mm.
In one embodiment of the present invention, as shown in fig. 7 and 8, the first wire 121 may be a power wire for transmitting power; the second wire 122 may be a signal wire for transmitting a first signal; the third conductor 124 may be a signal conductor for transmitting a second signal, and the second signal is different from the first signal.
In one embodiment of the present invention, as shown in fig. 7 and 8, the third conductive line 124 may be a low voltage differential signal conductive line for transmitting a low voltage differential signal.
In one embodiment of the present invention, as shown in fig. 7 and 8, the conductive shield 126 may be a wire braided shield, for example, a copper wire braided shield.
In accordance with another exemplary embodiment of the present invention, as shown in fig. 6 and 8, a hollow multi-wire medical cable 100' is also disclosed. As shown in fig. 6 and 8, in the illustrated embodiment, no support core for supporting the wires 121, 122, 124 is provided in the center of the multi-wire medical cable 100 ', so that the multi-wire medical cable 100' has a hollow structure.
As shown in fig. 6 and 8, in the illustrated embodiment, the center of the hollow multi-wire medical cable 100' is formed with a central through hole 101. As shown in fig. 6 and 8, in the illustrated embodiment, the hollow multi-wire medical cable 100' basically includes: a plurality of wires 121, 122, 124 wound around the central through hole 101; and an outer jacket layer 130 wrapped over the plurality of wires 121, 122, 124.
As shown in fig. 6 and 8, in the illustrated embodiment, the plurality of wires 121, 122, 124 includes a plurality of first wires 121, and the plurality of first wires 121 are wound around the outer circumference of the central through hole 101.
As shown in fig. 6 and 8, in the illustrated embodiment, the plurality of wires 121, 122, 124 further include a plurality of second wires 122, and the plurality of second wires 122 are wound around the outer peripheries of the plurality of first wires 121.
As shown in fig. 6 and 8, in the illustrated embodiment, the hollow multi-wire medical cable 100' further includes a first insulating tape 123, the first insulating tape 123 being wound around the outer circumference of the plurality of second wires 122.
As shown in fig. 6 and 8, in the illustrated embodiment, the plurality of wires 121, 122, 124 further includes a plurality of third wires 124, and the plurality of third wires 124 are wound on the outer circumference of the first insulating tape 123.
As shown in fig. 6 and 8, in the illustrated embodiment, the aforementioned hollow multi-wire medical cable 100' further includes a second insulating tape 125, the second insulating tape 125 being wound around the outer circumference of the plurality of third wires 124.
As shown in fig. 6 and 8, in the illustrated embodiment, the aforementioned hollow multi-wire medical cable 100' further includes a conductive shield 126, the conductive shield 126 being wrapped around the outer circumference of the second insulating tape 125, and an outer jacket layer 130 being wrapped around the conductive shield 126.
As shown in fig. 6 and 8, in one exemplary embodiment of the present invention, a plurality of first conductive wires 121 are twisted with each other in a twisted manner around the central through-hole 101; a plurality of second conductive wires 122 are wound around the plurality of first conductive wires 121 in a twisted manner; and a plurality of third conductive wires 124 are wound around the outer circumference of the first insulating tape 123 in a twisted manner.
As shown in fig. 6 and 8, in one exemplary embodiment of the invention, there is a gap between the outer jacket layer 130 and the conductive shield 126.
As shown in fig. 6 and 8, in an exemplary embodiment of the invention, the gap between the outer jacket layer 130 and the conductive shield 126 is in the range of 0.05mm to 0.20 mm.
As shown in fig. 6 and 8, in the illustrated embodiment, the first conductor 121 is a power conductor for transmitting power; the second wire 122 is a signal wire for transmitting a first signal; the third wire 124 is a signal wire for transmitting a second signal, and the second signal is different from the first signal.
As shown in fig. 6 and 8, in the illustrated embodiment, the third conductive line 124 is a low voltage differential signal conductive line for transmitting a low voltage differential signal.
As shown in fig. 6 and 8, in the illustrated embodiment, the conductive shield 126 is a wire braid shield.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.
Claims (34)
1. A method of manufacturing a multi-wire medical cable, comprising the steps of:
s100: -manufacturing a solid cable (100), the solid cable (100) comprising an insulating support core (110), an intermediate layer (120) supported on the support core (110) and an outer jacket layer (130) wrapped on the intermediate layer (120), the intermediate layer (120) comprising at least a plurality of wires (121, 122, 124) wound on the support core (110);
s200: removing a section of the outer jacket layer (130) on one end of the solid cable (100) such that a section of the intermediate layer (120) on one end of the solid cable (100) is exposed;
s300: turning and folding the exposed section of the intermediate layer (120) back over the outer jacket layer (130) of the solid cable (100) such that a section of the support core (110) on one end of the solid cable (100) is exposed; and
s400: pulling the exposed length of the support core (110) outwards such that the support core (110) is withdrawn from the solid cable (100), thereby obtaining a hollow multi-wire medical cable (100') without a support core (110).
2. The method of claim 1, wherein:
the intermediate layer (120) of the solid cable (100) comprises a plurality of first wires (121), and the step S100 comprises the steps of:
s110: -winding the plurality of first wires (121) around the outer circumference of the support core (110).
3. The method of claim 2, wherein:
the intermediate layer (120) of the solid cable (100) further comprises a plurality of second wires (122), and the step S100 further comprises the steps of:
s120: the plurality of second conductive wires (122) are wound around the outer peripheries of the plurality of first conductive wires (121).
4. The method of claim 3, wherein:
the intermediate layer (120) of the solid cable (100) further comprises a first insulating tape (123), and the step S100 further comprises the steps of:
s130: the first insulating tape (123) is wound on the outer peripheries of the plurality of second conductive wires (122).
5. The method of claim 4, wherein:
the intermediate layer (120) of the solid cable (100) further comprises a plurality of third wires (124), and the step S100 further comprises the steps of:
s140: winding the plurality of third conductive wires (124) around the outer circumference of the first insulating tape (123).
6. The method of claim 5, wherein:
the intermediate layer (120) of the solid cable (100) further comprises a second insulating tape (125), and the step S100 further comprises the steps of:
s150: winding the second insulating tape (125) around the outer circumference of the plurality of third conductive wires (124).
7. The method of claim 6, wherein:
the intermediate layer (120) of the solid cable (100) further comprises a conductive shield (126), and the step S100 further comprises the steps of:
s160: wrapping the conductive shield (126) around the outer circumference of the second insulating tape (125); and
s170: forming the outer jacket layer (130) on the conductive shield (126).
8. The method of claim 1, said step S300 further comprising the steps of:
s310: after the exposed section of the intermediate layer (120) is turned back and folded over the outer jacket layer (130) of the solid cable (100), the section of the intermediate layer (120) is fixed to the outer jacket layer (130) of the solid cable (100) with an adhesive tape (10).
9. The method of claim 1, wherein: the supporting core (110) in contact with the wire is made of an insulating material having a coefficient of friction of less than 0.2.
10. The method of claim 9, wherein: the support core (110) is made of fluorinated ethylene propylene, polyethylene, polypropylene, polyester, cotton or nylon.
11. The method of claim 2, wherein:
the plurality of first wires (121) are wound around the support core (110) in a twisted manner, and
the lay pitch ratio of the plurality of first wires (121) wound on the support core (110) is within a range of 60-80.
12. The method of claim 3, wherein:
the plurality of second conductive wires (122) are wound on the plurality of first conductive wires (121) in a twisted manner, and
the lay pitch ratio of the second wires (122) wound on the first wires (121) is within the range of 60-80.
13. The method of claim 5, wherein:
the plurality of third conductive wires (124) are wound on the outer circumference of the first insulating tape (123) in a twisted manner, and
the third wires (124) wound on the outer periphery of the first insulating tape (123) have a lay pitch ratio within a range of 60 to 80.
14. The method of claim 4, wherein:
when the first insulating tape (123) is wound, a tension applied to the first insulating tape (123) is 20% to 30% of a maximum tension allowed by the first insulating tape (123).
15. The method of claim 6, wherein:
-a tensioning force exerted on the second insulating tape (125) when winding the second insulating tape (125) is 20% to 30% of a maximum tensioning force allowed by the second insulating tape (125).
16. The method of claim 7, wherein:
forming the outer jacket layer (130) on the conductive shield (126) by extrusion; and is
A predetermined gap is provided between the outer jacket layer (130) and the conductive shield (126).
17. The method of claim 16, wherein:
the gap between the outer jacket layer (130) and the conductive shield (126) is within the range of 0.05mm to 0.20 mm.
18. The method of claim 7, wherein:
the first conductor (121) is a power conductor for transmitting power;
the second conductor (122) is a signal conductor for transmitting a first signal;
the third conductor (124) is a signal conductor for transmitting a second signal, and the second signal is different from the first signal.
19. The method of claim 18, wherein:
the third conductor (124) is a low voltage differential signal conductor for transmitting a low voltage differential signal.
20. The method of claim 7, wherein: the conductive shield (126) is a wire braid shield.
21. A multi-wire medical cable, comprising:
no support core (110) for supporting the wires (121, 122, 124) is provided in the center of the multi-wire medical cable (100 '), so that the multi-wire medical cable (100') has a hollow structure,
the multi-wire medical cable made by the method of claim 1.
22. The multi-wire medical cable (100') according to claim 21, wherein:
the multi-wire medical cable (100 ') has a central through hole (101) in its center, and the multi-wire medical cable (100') includes:
a plurality of wires (121, 122, 124) intertwined with each other around the central through hole (101); and
an outer jacket layer (130) wrapped over the plurality of wires (121, 122, 124).
23. The multi-wire medical cable of claim 22, wherein:
the plurality of conductive wires (121, 122, 124) includes a plurality of first conductive wires (121), and the plurality of first conductive wires (121) are wound around the outer circumference of the central through hole (101) to each other.
24. The multi-wire medical cable of claim 23, wherein:
the plurality of conductive wires (121, 122, 124) further include a plurality of second conductive wires (122), the plurality of second conductive wires (122) being wound around the outer peripheries of the plurality of first conductive wires (121).
25. The multi-wire medical cable of claim 24, wherein:
the multi-wire medical cable further includes a first insulating tape (123), the first insulating tape (123) being wound around the outer circumference of the plurality of second wires (122).
26. The multi-wire medical cable of claim 25, wherein:
the plurality of wires (121, 122, 124) further include a plurality of third wires (124), the plurality of third wires (124) being wound on an outer circumference of the first insulating tape (123).
27. The multi-wire medical cable of claim 26, wherein:
the multi-wire medical cable further includes a second insulating tape (125), the second insulating tape (125) being wound around the outer circumference of the plurality of third wires (124).
28. The multi-wire medical cable of claim 27, wherein:
the multi-wire medical cable further comprises a conductive shield (126), the conductive shield (126) being wrapped around an outer circumference of the second insulating tape (125), and the outer jacket layer (130) being wrapped around the conductive shield (126).
29. The multi-wire medical cable of claim 28, wherein:
the plurality of first wires (121) are twisted with each other in a twisted manner around the central through hole (101);
the plurality of second conductive wires (122) are wound on the plurality of first conductive wires (121) in a twisted manner; and is
The plurality of third conductive wires (124) are wound around the outer circumference of the first insulating tape (123) in a twisted manner.
30. The multi-wire medical cable of claim 28, wherein:
a gap is between the outer jacket layer (130) and the conductive shield (126).
31. The multi-wire medical cable of claim 30, wherein:
the gap between the outer jacket layer (130) and the conductive shield (126) is within the range of 0.05mm to 0.20 mm.
32. The multi-wire medical cable of claim 28, wherein:
the first conductor (121) is a power conductor for transmitting power;
the second conductor (122) is a signal conductor for transmitting a first signal;
the third conductor (124) is a signal conductor for transmitting a second signal, and the second signal is different from the first signal.
33. The multi-wire medical cable of claim 32, wherein:
the third conductor (124) is a low voltage differential signal conductor for transmitting a low voltage differential signal.
34. The multi-wire medical cable of claim 28, wherein: the conductive shield (126) is a wire braid shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610724642.5A CN107785107B (en) | 2016-08-25 | 2016-08-25 | Multi-wire medical cable and method of making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610724642.5A CN107785107B (en) | 2016-08-25 | 2016-08-25 | Multi-wire medical cable and method of making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107785107A CN107785107A (en) | 2018-03-09 |
| CN107785107B true CN107785107B (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610724642.5A Expired - Fee Related CN107785107B (en) | 2016-08-25 | 2016-08-25 | Multi-wire medical cable and method of making same |
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| Country | Link |
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| CN (1) | CN107785107B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201069672Y (en) * | 2007-06-28 | 2008-06-04 | 东莞市日新电线实业有限公司 | A connection line for medial detection instrument |
| CN204332460U (en) * | 2014-12-17 | 2015-05-13 | 杭州千岛湖永通电缆有限公司 | Signal transmission cable |
| CN105825934A (en) * | 2016-03-30 | 2016-08-03 | 苏珩线缆南通有限公司 | Cable for medical equipment, and preparation method thereof |
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2016
- 2016-08-25 CN CN201610724642.5A patent/CN107785107B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN107785107A (en) | 2018-03-09 |
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