CN111312432A - Cable and manufacturing method thereof, medical probe and medical monitor - Google Patents

Abstract

The invention discloses a cable and a manufacturing method thereof, a medical probe and a medical monitor. The cable includes a sub-stranded wire, the sub-stranded wire includes a sub-core wire and a conducting wire, and the sub-core wire is composed of an inelastic material , the wire is spirally wound around the sub-core wire. The invention provides a cable and its manufacturing method, a medical probe and a medical monitor, aiming at solving the problems of poor bending performance, twisting performance and pulling performance and low reliability of the cable in the prior art.

Description

Cable and manufacturing method thereof, medical probe and medical monitor

technical field

The invention relates to the field of transmission media, in particular to a cable and a manufacturing method thereof, a medical probe and a medical monitor.

Background technique

Cable is a main carrier for multiple functions such as control installation, communication connection, and power transmission. With the rapid development of data communication and information technology, the performance requirements for transmission cables are getting higher and higher. At present, the medical monitor mainly detects the heart rate by connecting the probe with the medical cable. In the process of use, the cable will inevitably be bent, twisted or pulled. Because the existing concentric stranded wire structure cables and collective stranded wire structure cables have poor bending performance, torsion performance and pulling performance, The reliability is not high, so when the cable is bent, twisted or pulled, the wires inside the cable may be broken, thus affecting the normal use of the cable.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a cable and its manufacturing method, a medical probe and a medical monitor, aiming at solving the problems of poor bending performance, torsion performance and pulling performance and low reliability of cables in the prior art .

In order to achieve the above object, the present invention proposes a cable, the cable includes a sub-stranded wire, the sub-stranded wire includes a sub-core wire and a wire, the sub-core wire is an insulating inelastic material, and the wire is helical. Winding the sub-core wire is provided.

Optionally, the number of the conductors is multiple, and the multiple conductors are spirally wound around the sub-core wires without crossing, and the sub-core wires are spirally wound together.

Optionally, the cable includes a stranded wire, the stranded wire includes a main core wire and the sub-stranded wire, the main core wire is an insulating inelastic material, and the sub-stranded wire is spirally wound around the main core line settings.

Optionally, the cable includes a sub-cable, and the sub-cable includes a first insulating tape and the stranded wire, and the first insulating tape is arranged to cover the stranded wire.

Optionally, the number of the sub-cables is multiple, and the multiple sub-cables are evenly distributed along the circumferential direction with the axis of the cable as the center.

Optionally, the cable includes a lubricating layer and a second insulating tape, the lubricating layer is arranged to cover a plurality of the sub-cables, and the second insulating tape is arranged to cover the lubrication layer.

Optionally, the cable includes filler, and the filler is accommodated in the lubricating layer to fill the inner space covered by the lubricating layer.

In order to achieve the above purpose, the present invention provides a medical probe, the medical probe includes a medical probe body and a cable, the cable includes the cable according to any one of the above embodiments, and the medical probe body is connected to the cable. Connect one end of the cable.

In order to achieve the above object, the present invention provides a medical monitor, the medical monitor includes a medical monitor body and a medical probe, the medical probe includes the medical probe according to claim 8, and the medical probe includes a medical probe. A body and a cable, the medical monitor body and the medical probe body are connected through the cable.

In order to achieve the above object, the present invention proposes a method for manufacturing a cable, comprising the following steps:

S10, use an insulating inelastic material as the sub-core wire;

S20, winding the sub-core wires in a spiral shape without crossing to form a sub-stranded wire;

S30, use insulating non-elastic material as the main core wire;

S40, winding the sub-stranded wire helically around the main core wire;

S50, covering a plurality of the sub-stranded wires and the main core wires with a first insulating tape to form sub-cables;

S60, covering the sub-cable with a lubricating layer, and filling the lubricating layer with filler;

S70, covering the lubricating layer with a second insulating tape to form a cable.

In the technical solution proposed by the present invention, the cable includes a sub-stranded wire, and the sub-stranded wire includes a sub-core wire and a wire, the wire is spirally wound around the sub-core wire, and the sub-core wire is made of an inelastic material composition. Since the sub-core wire is an inelastic material and the wire is helical, when the cable is bent or twisted, the helical wire is deformed. Compared with the direct bending and twisting of the wire, The helical wire has better anti-bending and anti-torsion properties; when the cable is pulled, since the sub-core wire is an inelastic material, the sub-core wire can reduce the tension of the cable. The degree of pulling can reduce the deformation of the wire and improve the pulling resistance of the wire; the bending resistance of the cable can be improved by the sub-core wire of the inelastic material and the spirally arranged wire performance, torsion resistance and pull resistance, thereby increasing the reliability of the cable.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

Fig. 1 is the structural representation of the sub-stranded wire of the present invention;

Fig. 2 is the structural representation of twisted wire of the present invention;

FIG. 3 is a schematic structural diagram of the cable of the present invention;

FIG. 4 is a flow chart of the cable manufacturing method of the present invention;

FIG. 5 is a schematic block diagram of the medical monitor of the present invention.

Description of reference numbers:

label name label name 10 sub-stranded wire 40 filler 11 wire 50 lubricating layer 12 sub-core 60 second insulating tape 20 Stranded wire 70 Medical probe body twenty one main core 80 Medical monitor body 30 sub cable 100 cable 31 first insulating tape

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

The invention provides a cable and a manufacturing method thereof, a medical probe and a medical monitor.

Please refer to FIG. 1 , the cable 100 includes a sub-stranded wire 10, the sub-stranded wire 10 includes a sub-core wire 12 and a wire 11, the sub-core wire 12 is an insulating inelastic material, and the wire 11 is spirally wound The sub-core wires 12 are provided.

In the technical solution proposed by the present invention, the cable 100 includes a sub-stranded wire 10, and the sub-stranded wire 10 includes a sub-core wire 12 and a wire 11, and the wire 11 is spirally wound around the sub-core wire 12. The sub-core wire 12 is an insulating inelastic material. Since the sub-core wire 12 is an inelastic material and the wire 11 is helical, when the cable 100 is bent or twisted, the helical wire 11 is deformed. When the cable 100 is pulled, the sub-core wire 12 is an insulating inelastic material, so the The sub-core wire 12 can reduce the degree of pulling of the cable 100, reduce the deformation of the wire 11, and improve the anti-pull performance of the wire 11; the sub-core wire 12 made of inelastic material is arranged in a spiral shape. The wire 11 can improve the anti-bending performance, anti-torsion performance and anti-pull performance of the cable 100, thereby improving the reliability of the cable 100. Specifically, the sub-core wire 12 can be a fiber wire or a cotton wire, and the wire 11 can be made of copper or aluminum. It can be understood that the material used for the wire 11 is not limited to this. In other embodiments, the The wire 11 can use other materials with conductive function. In addition, during the processing of the cable 100, since the stranded wire 20 has a relatively small relaxation force and is uniformly stressed, the wire 11 is spirally wound around the sub-core wire 12, which solves the problem of relaxation of the traditional collective stranded wire equipment. The force is large and the force is uneven, thereby causing the defect of the wire 11 jumper and the unevenness of the cable 100 .

Further, please refer to FIG. 1 , the number of the wires 11 is plural, and the plurality of the wires 11 are spirally wound around the sub-core wires 12 without crossing, and are arranged helically wound the sub-core wires 12 together. In a specific embodiment, the sub-stranded wire 10 includes a plurality of the conductive wires 11 , the plurality of the conductive wires 11 are spirally wound around the sub-core wire 12 , the plurality of the conductive wires 11 do not cross each other, and the plurality of the conductive wires 11 The sub-core wires 12 are wound together. Preferably, the adjacent wires 11 that are wound together are in contact with each other, so as to ensure that there is no gap between the wires 11 on the outer layer of the sub-stranded wires 10 .

Further, please refer to FIG. 2, the cable 100 includes a stranded wire 20, the stranded wire 20 includes a main core wire 21 and the sub-stranded wire 10, the main core wire 21 is an insulating inelastic material, so The sub-stranded wire 10 is spirally wound around the main core wire 21 . In a specific embodiment, the sub-stranded wire 10 is arranged helically wound around the main core wire 21. Since the main core wire 21 is an insulating inelastic material, the sub-stranded wire 10 is arranged in a spiral shape. 20 When bending or twisting occurs, the helical sub-stranded wire 10 is deformed. Compared with the sub-stranded wire 10 that is directly bent and twisted, the helical sub-stranded wire 10 has better bending resistance. When the stranded wire 20 is pulled, since the main core wire 21 is an inelastic material, the main core wire 21 can reduce the pulling degree of the stranded wire 20 and reduce the The deformation of the sub-stranded wire 10 improves the pulling resistance of the sub-stranded wire 10; the main core wire 21 of the inelastic material and the sub-stranded wire 10 arranged in a spiral shape can improve the stranded wire 20 Bending resistance, torsion resistance and pulling resistance.

Further, the main core wire 21 and the sub-core wire 12 are fiber threads or cotton threads. In the specific implementation manner, considering that the cable 100 is inevitably stretched during use, the main core wire 21 and the sub-core wire 12 are made of inelastic materials, which will largely replace the The conducting wire 11 and the stranded wire 20 are subjected to tensile force. It can be understood that the material of the main core wire 21 is not limited to this. In another embodiment, the main core wire 21 can be made of a flexible material, thereby The tensile force on the wire 11 is reduced.

Further, please refer to FIG. 3 , the cable 100 includes a sub-cable 30 , the sub-cable 30 includes a first insulating tape 31 and the stranded wire 20 , and the first insulating tape 31 covers the stranded wire Line 20 is set. In a specific embodiment, the first insulating tape 31 covers the stranded wire 20, and the first insulating tape 31 is used to keep the stranded wire 20 and the adjacent stranded wires 20 insulated from each other. , the material of the first insulating tape 31 may be glass fiber, polyvinyl chloride (PVC) or polyethylene (Ethylene-vinyl acetate copolymer, EVA). It can be understood that the material of the first insulating tape 31 Not limited to this, in other embodiments, the first insulating tape 31 may use other insulating materials.

Further, please refer to FIG. 3 , the number of the sub-cables 30 is multiple, and the plurality of the sub-cables 30 are distributed along the axial direction with the axis of the cable 100 as the center. In a specific embodiment, a plurality of the sub-cables 30 are accommodated in the cable 100. Since the sub-cables 30 are covered with the first insulating tape 31, the sub-cables 30 are adjacent to the adjacent sub-cables 30. The sub-cables 30 are insulated from each other, and a plurality of the sub-cables 30 are arranged around the axis of the cable 100 and abut each other to form a support structure, so as to facilitate the positioning of the cable 100 during the production process and processing. Specifically, the cable 100 is provided with four sub-cables 30, and the four sub-cables 30 are distributed in a four-corner support structure, and are evenly distributed in the axial direction with the axis of the cable 100 as the center , the uniform distribution can make the sub-cable 30 bear the force evenly, and improve the bending resistance, torsion resistance and pulling resistance of the stranded wire 20 .

Further, the cable 100 includes a lubricating layer 50 and a second insulating tape 60 , the lubricating layer 50 is arranged to cover a plurality of the sub-cables 30 , and the second insulating tape 60 covers the lubricating layer 50 . set up. In a specific embodiment, the lubricating layer 50 covers the sub-cable 30 and the filler 40 , and the lubricating layer 50 can reduce the deformation of the sub-cable 30 and the filler 40 during bending and Friction during torsion. Specifically, the lubricating layer 50 is composed of organic plastic materials. The second insulating tape 60 is arranged on the outermost layer of the cable 100 , the second insulating tape 60 is used to protect the internal structure of the cable 100 , and the second insulating tape 60 has anti-corrosion, ultraviolet As a result, the inside of the cable 100 can be protected from the influence of the external environment. Preferably, the second insulating tape 60 has passed food grade certification, so that the second insulating tape 60 can reduce pollution to the external environment.

Further, a filler 40 is provided in the cable 100 , and the filler 40 is accommodated in the lubricating layer 50 to fill the inner space of the lubricating coating. Specifically, in some optional embodiments, the filler 40 fills other spaces except the sub-cable 30 inside the lubricating layer 50, so that the cable 100 can be bent or During stretching, the filler 40 can buffer the bending and stretching of the sub-cable 30 , thereby improving the bending resistance and the stretching resistance of the cable 100 .

Please refer to FIG. 5 , the present invention further provides a medical probe, the medical probe includes a medical probe body 70 and a cable 100 , and the cable 100 includes the cable 100 described in any of the above embodiments, the cable The specific structure of 100 refers to the above-mentioned embodiment. Specifically, one end of the cable 100 is connected to the medical probe body 70, and the other end is connected to the medical equipment. In addition, the connection method of the cable 100 is not limited to electrical connection and communication connection. In an embodiment, after the medical probe collects data, the data is transmitted to the medical device through the cable 100 . In another embodiment, the medical device supplies power to the medical probe body 70 through the cable 100 to ensure that the medical probe body 70 can work normally.

Referring to FIG. 5 , the present invention also provides a medical monitor, the medical monitor includes a medical monitor body 80 and a medical probe, and the medical probe includes the medical probe described in any of the above embodiments. In a specific embodiment, the medical probe includes the medical probe body 70 and the cable 100 , one end of the cable 100 is connected to the medical probe body 70 , and the other end is connected to the medical monitor body 80 . Wherein, the connection mode of the cable 100 is not limited to electrical connection and communication connection. After the medical probe body 70 collects data, the collected data is transmitted to the medical monitor body 80 through the cable 100 for processing by the medical monitor body 80 . Preferably, the medical monitor is a fetal monitor or a maternal monitor.

In this solution, the sub-stranded wires 10 of the cable 100 are helically wound with the sub-core wires 12 through the wires 11. During the use of the cable 100, due to the force of the stranded wires 20 The point is located on the sub-core wire 12 , thus reducing the external force of the wire 11 being pulled, bent or twisted, and improving the reliability of the stranded wire 20 . In addition, since the sub-stranded wire 10 in the cable 100 is wound around the main core wire 21 , the main core wire 21 can avoid the bending of the sub-stranded wire 10 during the deformation of the cable 100 . or stretching or twisting, so as to improve the bending resistance, torsion resistance and pulling resistance of the cable 100 .

Referring to FIG. 4, the present invention provides a method for manufacturing a cable 100, which includes the following steps:

S10, making the sub-core wire 12 with an insulating inelastic material;

Specifically, the insulating inelastic material is selected as fiber thread or cotton thread as the sub-core thread 12;

S20, spirally winding the wire 11 on the sub-core wire 12, and twisting to form the sub-stranded wire 10;

Specifically, a plurality of the conducting wires 11 are spirally wound around the sub-core wires 12 without crossing, and the sub-core wires 12 are spirally wound together;

S30, making the main core wire 21 with an insulating inelastic material;

Specifically, the insulating inelastic material is selected as fiber thread or cotton thread as the main core thread 21;

S40, winding the sub-stranded wire 10 with the main core wire 21 in a helical winding manner, and twisting;

Specifically, a plurality of the sub-stranded wires 10 are spirally wound around the main core wire 21, and the main core wire 21 is spirally wound together;

S50, covering a plurality of the sub-stranded wires 10 and the main core wires 21 with a first insulating tape 31 to form a sub-cable 30;

S60, wrapping the lubricating layer 50 on the sub-cable 30, and filling the filler 40 into the lubricating layer 50;

Specifically, the lubricating layer 50 covers a plurality of the sub-cables 30 , and the filler 40 is filled between the lubricating layer 50 and the sub-cables 30 ;

S70, covering the lubricating layer 50 with the second insulating tape 60 to form the cable 100;

Specifically, the second insulating tape 60 is disposed on the outermost layer of the cable 100;

In some optional embodiments, the sub-stranded wire 10 includes a total of one sub-core wire 12 and seven said conducting wires 11 , and the seven conducting wires 11 are wound around the sub-core in a spring-like manner without crossing. Line 12.

Further, the sub-cable 30 includes one main core wire 21 , six sub-stranded wires 10 and the first insulating tape 31 , and the six sub-stranded wires 10 are all in a spring shape without crossing. winding the main core wire 21, the first insulating tape 31 wraps one of the main core wire 21 and six of the sub-stranded wires 10.

Further, the lubricating layer 50 covers four of the sub-cables 30, and the filler 40 is arranged in the remaining space of the lubricating layer 50 except for the sub-cables 30; The outermost layer is provided with the second insulating tape 60 , and the second insulating tape 60 is used to protect the internal structure of the cable 100 from being affected by the external environment.

In some optional embodiments, multiple cables 100 are selected in series, and one end of the multiple cables 100 in series is connected to the input end of the torsion testing machine, and the other end is connected to the input end of the torsion testing machine. output connection.

A torsion test is performed on the ordinary cable and the helically wound cable 100 by hooking a weight with a mass of 500 grams through the suspension wire, wherein the torsion frequency is set to 60 times per minute, and the torsion angle range is ±720 degrees. , the hanging wire length is set to 300 mm.

After three sets of torsion tests were performed according to the above parameters, the test torsion times of the common cable were 692 times, 670 times, and 590 times respectively; the test torsion times of the spirally wound cable 100 all exceeded 100,000 times; The test twist times of the helically wound cable 100 is more than 140 times higher than that of the common cable, and the helically wound cable 100 has better anti-twist performance.

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by the contents of the description and drawings of the present invention, or the direct/indirect application Other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A cable, characterized in that the cable comprises a sub-stranded wire, the sub-stranded wire includes a sub-core wire and a wire, the sub-core wire is an insulating inelastic material, and the wire is spirally wound. Describe the core wire settings. 2 . The cable according to claim 1 , wherein the number of the wires is plural, and the plurality of wires are spirally wound around the sub-core wires without crossing, and the sub-core wires are spirally wound together. 3 . Core setting. 3. The cable according to claim 1, wherein the cable comprises a stranded wire, the stranded wire comprises a main core wire and the sub-stranded wire, and the main core wire is an insulating inelastic material , the sub-stranded wire is arranged helically wound around the main core wire. The cable of claim 3, wherein the cable comprises a sub-cable, the sub-cable comprises a first insulating tape and the stranded wire, and the first insulating tape covers the the twisted wire settings. 5 . The cable according to claim 4 , wherein the number of the sub-cables is plural, and the plurality of sub-cables are evenly distributed along the circumferential direction with the axis of the cable as the center. 6 . 6 . The cable according to claim 4 , wherein the cable comprises a lubricating layer and a second insulating tape, the lubricating layer covers a plurality of the sub-cables, and the second insulating tape is arranged. 6 . The lubricating layer is coated. 7 . The cable of claim 6 , wherein the cable comprises a filler, and the filler is accommodated in the lubricating layer to fill the inner space covered by the lubricating layer. 8 . 8. A medical probe, characterized in that the medical probe comprises a medical probe body and a cable, the cable comprises the cable according to claims 1-7, the medical probe body and the cable one end of the connection. 9. A medical monitor, characterized in that the medical monitor comprises a medical monitor body and a medical probe, the medical probe comprises the medical probe according to claim 8, the medical probe comprises a medical probe body and a medical probe. A cable, the medical monitor body and the medical probe body are connected by the cable. 10. A method for manufacturing a cable, comprising the steps of: S10, use an insulating inelastic material as the sub-core wire; S20, winding the sub-core wires in a spiral shape without crossing to form a sub-stranded wire; S30, use insulating non-elastic material as the main core wire; S40, winding the sub-stranded wire helically around the main core wire; S50, covering a plurality of the sub-stranded wires and the main core wires with a first insulating tape to form sub-cables; S60, covering the sub-cable with a lubricating layer, and filling the lubricating layer with filler; S70, covering the lubricating layer with a second insulating tape to form a cable.

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