Electrocardiograph medical wire for noise reduction

Abstract

The invention relates to the technical field of noise reduction electric wires, in particular to an electrocardiograph medical wire for noise reduction, which comprises a protective shell, a plurality of electric conductors arranged in the protective shell, insulating layers arranged around the electric conductors and a noise reduction layer filled in the protective shell, and further comprises support limiting frames arranged at two ends of the protective shell in a sleeving manner, fastening bolts are arranged on the two sides of the supporting limiting frame and used for fixing the medical wire, a telescopic control structure is arranged in the middle of the supporting limiting frame and used for controlling the bending length of the protective shell, and rotation control structures are arranged close to the two sides of the middle of the supporting limiting frame. According to the medical wire, the outer cable hoop and the inner cable hoop are arranged, vibration generated when the electric wire works is reduced, noise is reduced, the number of bending and turning nodes of the medical wire is increased by arranging the telescopic control structure and the rotation control structure, and noise transmission is hindered through the bent and turned medical wire; through the two points, noise is processed in the aspects of generation and transmission, and the noise reduction and elimination effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of noise reduction electric wires, in particular to an electrocardiograph medical wire for noise reduction. Background Art

[0002] An electrocardiogram (ECG) is a medical electronic device commonly used in clinical diagnosis and scientific research. It automatically records the electrical signals generated by myocardial excitation during cardiac activity. Before the heart beats, the myocardium becomes excited, generating a weak current that is conducted through human tissue to various parts of the body. Due to the varying tissue structure and distance from the heart, different areas of the body surface exhibit varying electrical potential variations. This relationship between surface potential and time, generated by electrical activity within the heart, is called an electrocardiogram (ECG). An ECG is the instrument that records these physiological electrical signals.

[0003] During use, an ECG machine generates a buzzing noise due to the simultaneous operation of multiple medical cables. This noise causes the machine to output tiny, chaotic waves even when no input signal is present. Excessive noise not only affects the aesthetics of the graph but also the normality of the ECG waves. Therefore, the noise must be as low as possible, with no visible noise waveforms on the trace. Therefore, noise reduction is necessary for the ECG machine's medical cables.

[0004] After searching, the Chinese patent application number 201610262329.4 discloses a medical cable for electrocardiographs for noise reduction and a manufacturing method. The medical cable for electrocardiographs includes at least two core wires arranged side by side. The core wires include a conductor, a protective cover, an insulating layer and a shielding layer. The outer surface of the conductor is sequentially covered with an insulating layer, a shielding layer and a protective cover. The core wires are connected by a protective cover. The above patent has the following shortcomings: the protective cover, the insulating layer and the shielding layer can only suppress the noise generated by the current passing through the conductor, but do not limit the essential vibration generated by the noise and the propagation of the noise, resulting in poor noise reduction effect.

[0005] After another search, the Chinese patent application number 201820027391.X discloses a multifunctional wire sleeve for medical wire, including a first wire sleeve, a guide groove, a connecting plate, a connecting pin, a pressure plate, a connecting ring, a second wire sleeve, and a guide bar. The multifunctional wire sleeve for medical wire has an ingenious structure, powerful functions, and simple operation. By using the device, the medical wire can be wrapped to prevent the medical wire from being exposed to the outside world and causing damage, thereby protecting the medical wire. In addition, medical staff can also use the device to know what type of medical wire the medical wire is, which makes it easier for medical staff to know which part of the patient's body the medical wire is used to detect, reducing the difficulty of the medical staff's work; the shortcoming of the above patent is that although the wire sleeve can isolate the noise generated by the medical wire, the wire sleeve is not easy to bend and has fewer applicable scenarios.

[0006] At the same time, it was retrieved that the Chinese patent application number is 202310850743.7, which discloses a medical wire that can be prevented from being pulled out, including a medical wire, a support component is provided inside the medical wire, and an anti-stretching component is provided on the surface of the medical wire, and the anti-stretching component includes: a connecting block, the connecting block is fixedly installed on the surface of the medical wire, a rotating shaft is connected to the inside of the connecting block, a control shaft is fixedly installed on the outside of the rotating shaft, an anti-slip shaft is fixedly installed on the surface of the control shaft, a sliding rod, the sliding rod is slidably connected to the surface of the connecting block, a connecting rod is fixedly installed on the surface of the sliding rod, and a rack is fixedly installed on the outside of the connecting rod; the above-mentioned anti-stretching component can make part of the medical wire bend to hinder the propagation of noise, but the length and angle of the bent part cannot be adjusted, and the effect of hindering the propagation of noise is not good.

[0007] The noise generated by the electrocardiograph medical cable is reduced from the source and propagation. In view of this, we propose an electrocardiograph medical cable for noise reduction. Summary of the Invention

[0008] The purpose of the present invention is to provide an electrocardiograph medical cable for noise reduction. By arranging an outer cable clamp and an inner cable clamp, the vibration generated by the wire itself during operation is reduced to reduce the generation of noise. At the same time, the propagation of noise is hindered by the bending of the medical cable. Through the above two points, the generation and propagation of noise are processed to improve the noise reduction and silencing effect.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an electrocardiograph medical cable for noise reduction, comprising a protective shell, a plurality of conductors arranged inside the protective shell, an insulating layer arranged around the conductors, and a sound-absorbing and noise-reducing layer filled inside the protective shell; The protective shell further comprises support and limit frames sleeved on both ends of the protective shell, fastening bolts are provided on both sides of the support and limit frames for fixing the medical line, a telescopic control structure is provided in the middle of the support and limit frames for controlling the bending length of the protective shell, and rotation control structures are provided on both sides near the middle of the support and limit frames for controlling the bending angle of the protective shell. The telescopic control structure and the rotation control structure on the support and limit frames jointly form a bending control for the protective shell, so that the protective shell performs multiple bending turns in a three-dimensional plane; A plurality of sets of outer and inner cable hoops are further provided inside the protective shell. The inner cable hoops slide in the holes of the outer cable hoops, and the insulating layer and the conductor are fixed in the holes of the inner cable hoops. The telescopic control structure includes a limiting hollow column fixed inside the supporting limiting frame and provided with a spiral groove inside, a rotating cylinder rotating on the inner wall of the limiting hollow column and having a sliding hole processed on one side, and a telescopic limiting rod sliding on the inner wall of the rotating cylinder; The rotation control structure comprises a rotation shaft, a first rod body arranged on the rotation shaft, and a second rod body which is sleeved on the outer wall of the first rod body and can slide.

[0010] Furthermore, the sound-absorbing and noise-reducing layer is composed of sponge and a shielding layer; and the insulating layer is made of rubber.

[0011] Furthermore, an annular groove is provided around the inner cable hoop, and a plurality of elastic telescopic columns are provided at the bottom of the annular groove of the inner cable hoop. The telescopic ends of the elastic telescopic columns are fixedly connected to the telescopic blocks. A plurality of guide holes are processed on the top of the annular groove of the inner cable hoop, and the number of the guide holes is the same as the number of the elastic telescopic columns; the telescopic block is in the shape of an inverted triangle, and a cutting edge is provided on the top; the cutting edge of the telescopic block slides in the guide hole.

[0012] Furthermore, a raised ring is processed around the hole of the outer cable hoop, the bottom of the inner cable hoop is locked in the raised ring, and an opposite groove is provided inside the hole of the outer cable hoop. The opposite groove of the outer cable hoop is limited by a spring to limit the limit rod, and the limit rod is used to prevent the inner cable hoop from moving into the hole of the outer cable hoop by itself; the raised ring is used to squeeze the telescopic block when the outer cable hoop moves upward.

[0013] Furthermore, when the telescopic block is not squeezed, the elastic telescopic column is in an extended state, and the cutting edge of the telescopic block is located in the annular groove of the inner cable clamp; when the telescopic block is squeezed, the elastic telescopic column is in a compressed state, and the cutting edge of the telescopic block passes through the guide hole and the cutting edges of the same group form a concentric circle.

[0014] Furthermore, the bottom of the telescopic limit rod is rotatably connected to a turntable, one end of the turntable is fixedly connected to the bottom of the rotating cylinder, and a fixed column is processed on one side of the telescopic limit rod; a center buckle is provided at the top of the telescopic limit rod for limiting the medical line.

[0015] Furthermore, the fixing column slides on the inner wall of the sliding hole, and the fixing column is also located in the spiral groove of the limiting hollow column.

[0016] Furthermore, a positioning pin is provided on the top of the first rod body, and evenly distributed positioning holes are processed on one side of the second rod body; the positioning pin is located in the positioning hole to limit the length of the second rod body extending outward; the rotating shaft drives the first rod body to rotate to increase the bending turning node of the medical wire; a side buckle is provided on the top of the second rod body to limit the medical wire.

[0017] Furthermore, an accommodating cavity is provided on both sides of the support limit frame, and a transmission threaded rod is rotatably connected inside the accommodating cavity. A movable slider is provided on the transmission threaded rod and slides on the inner wall of the accommodating cavity. The rotating shaft is fixedly connected to the top of the movable slider through the base; the movable slider moves inside the accommodating cavity and is used to move the rotation control structure, so that the telescopic control structure and the two rotation control structures are misaligned.

[0018] Furthermore, electric guide rails are provided on both sides of the support limit frame, and the rotating shaft is fixed on the electric slider through a base.

[0019] Beneficial effects Compared with the known public technologies, the technical solution provided by the present invention has the following beneficial effects: 1. The innovation of the present invention is that the vibration generated by the wire itself during operation is reduced by providing an outer cable clamp and an inner cable clamp to reduce the generation of noise. The bending and turning nodes of the medical wire are increased by providing a telescopic control structure and a rotation control structure. The bending and turning of the medical wire are used to hinder the propagation of noise. Through the above two points, the noise generation and propagation are addressed, thereby improving the noise reduction and silencing effect.

[0020] 2. By setting a telescopic block and a cutting edge on the telescopic block on the inner cable hoop, cooperating with the outer cable hoop that slides with the inner cable hoop, pulling the outer cable hoop so that it is in the same plane as the inner cable hoop, the cutting edge of the telescopic block cuts the insulation layer. At this time, the staff only needs to take off the outer and inner cable hoop here to expose the conductor of the medical cable, which makes the bare wire cutting of the medical cable convenient and quick.

[0021] 3. Under the condition of saving costs, the telescopic control structure composed of a limiting hollow column, a rotating cylinder and a limiting telescopic rod is used to adjust the bending length of the medical wire, and the rotation control structure composed of a rotating shaft, a first rod body and a second rod body is used to adjust the bending angle of the medical wire. At the same time, there is a movable slider for controlling the movement of the rotating shaft, so that the telescopic control structure and the rotation control structure jointly form a bending control for the protective shell, so that the protective shell performs multiple bending turns on a three-dimensional level, that is, the medical wire limited by the center buckle and the side buckle is misaligned. If the three places are regarded as three points on a three-dimensional level, it can be understood that the three points are not on the same straight line, and the straight lines formed by the two are neither parallel nor perpendicular, thereby increasing the degree of bending and turning of the medical wire, and then hindering the propagation of noise generated by the medical wire. Compared with placing the medical wires randomly, this solution will not cause the medical wires to be entangled and knotted, and also solves the function of preventing noise propagation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the medical line of the present invention; Figure 3 This is a schematic structural diagram of the medical line cross section of the present invention with the sound-absorbing and noise-reducing layer removed; Figure 4 It is a schematic diagram of the exploded structure of the outer cable hoop and the inner cable hoop of the present invention; Figure 5 This is a schematic diagram of the inner rope hoop explosion structure of the present invention; Figure 6 A schematic diagram of the outer cable hoop of the present invention moving onto the inner cable hoop; Figure 7 A schematic diagram of the bottom structure of the support and limiting frame of the present invention; Figure 8 A schematic diagram of the explosion structure of the support and limiting frame of the present invention; Figure 9 A schematic diagram of the explosion structure of the first rod body and the second rod body of the present invention; Figure 10 Schematic diagram of the explosion structure of the telescopic limiting rod, limiting hollow column and rotating cylinder of the present invention.

[0024] Reference numerals 100 - protective shell; 101 - sound-absorbing and noise-reducing layer; 102 - insulating layer; 103 - conductor; 110 - outer cable clamp; 111 - raised ring; 112 - limit rod; 120 - inner cable clamp; 121 - guide hole; 122 - telescopic block; 123 - elastic telescopic column; 200-support and limit frame; 201-fastening bolt; 202-accommodating chamber; 203-movable slider; 204-transmission threaded rod; 210-rotating shaft; 211-second rod body; 212-side buckle; 213-first rod body; 214-locating pin; 215-locating hole; 220-telescopic limit rod; 221-limiting hollow column; 222-turntable; 223-center buckle; 224-fixed column; 225-rotating cylinder; 226-sliding hole. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0027] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0029] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0030] Example: A medical cable for electrocardiographs used for noise reduction, such as Figure 1-5 , 7-10, comprising a protective shell 100, a plurality of conductors 103 are provided inside the protective shell 100, an insulating layer 102 is provided around the conductors 103, and the interior of the protective shell 100 is filled with a sound-absorbing and noise-reducing layer 101. It is worth noting that the sound-absorbing and noise-reducing layer 101 is made of sponge and is also wrapped with a shielding layer (aluminum alloy belt). The porous structure inside the sponge causes a large amount of reflection and refraction when noise propagates therein, which can achieve the effect of reducing noise and preventing noise from propagating outward. The insulating layer 102 is made of rubber, which is convenient for cutting and removing the bare wire of the medical wire and reconnecting the electrode sheet. The protective shell 100 further includes support and limiting frames 200 sleeved on both ends of the protective shell 100. Fastening bolts 201 are provided on both sides of the support and limiting frames 200 for fixing the medical line. A telescopic control structure is provided in the middle of the support and limiting frames 200 for controlling the bending length of the protective shell 100. Rotation control structures are provided on both sides near the middle of the support and limiting frames 200 for controlling the bending angle of the protective shell 100. It is worth noting that the telescopic control structure and the rotation control structure on the support and limiting frames 200 jointly form a bending control for the protective shell 100, so that the protective shell 100 performs multiple bending turns in a three-dimensional plane, so that the noise generated by the medical line is reduced under multiple reflections and refractions, thereby achieving the effect of hindering noise propagation. Furthermore, in the noise reduction process of the wire, reducing the vibration of the wire is one of the solutions to reduce the noise. The wire with a larger diameter and heavier mass is not easy to vibrate, but the conductor 103 in the medical wire has a small diameter, and it is necessary to add a tight clamp to it to reduce its vibration. Specifically, the protective shell 100 is further provided with multiple sets of outer clamps 110 and inner clamps 120. The inner clamp 120 slides in the hole of the outer clamp 110, and the insulating layer 102 and the conductor 103 are fixed in the hole of the inner clamp 120. It is worth noting that The insulating layer 102 and the conductor 103 are fixed in the corresponding holes of the inner hoop 120, so that the conductors 103 will not be entangled with each other. At the same time, the insulating layer 102 and the conductor 103 fixed by the inner hoop 120 can reduce the vibration when the current passes through them, thereby reducing the generation of noise. The outer hoop 110 and the inner hoop 120 can slide so that the protective shell 100 can be bent arbitrarily, avoiding the phenomenon that the integrated outer hoop 110 and the inner hoop 120 cannot be bent at the corresponding nodes; In order to prevent the outer cable clamp 110 and the inner cable clamp 120 provided inside the protective shell 100 from hindering the interception of the bare wire of the medical wire, the present embodiment adopts the following scheme: an annular groove is provided around the inner cable clamp 120, and a plurality of elastic telescopic columns 123 are provided at the bottom of the annular groove of the inner cable clamp 120. The preferred number of elastic telescopic columns 123 in the present embodiment is four, and the telescopic end of the elastic telescopic column 123 is fixedly connected to a telescopic block 122. The telescopic block 122 is in the shape of an inverted triangle with a cutting edge provided on the top. The hypotenuse of the inverted triangular telescopic block 122 is convenient for being squeezed and moved, and the inner The top of the annular groove of the cable hoop 120 is processed with multiple guide holes 121. The number of guide holes 121 is the same as the number of elastic telescopic columns 123. In this embodiment, there are four. The cutting edges of the telescopic block 122 slide in the guide holes 121. The elastic telescopic column 123 has a natural extension state and a compression state. When the elastic telescopic column 123 is in the extension state, the cutting edges of the telescopic block 122 are located in the annular groove of the inner cable hoop 120. When the elastic telescopic column 123 is in the compression state, the cutting edges of the telescopic block 122 pass through the guide holes 121 and the cutting edges of the same group form a concentric circle. Figure 6The outer cable hoop 110 is provided with a plurality of holes 114 on the inner cable hoop 120, and the holes 114 on the inner cable hoop 120 are provided with a plurality of holes 115 on the inner cable hoop 120. The holes 114 on the outer cable hoop 110 are provided with a plurality of holes 115 on the inner cable hoop 120, and the plurality of holes 114 on the inner cable hoop 120 are provided with a plurality of holes 115 on the inner cable hoop 120. The bottom of the hoop 120 is positioned in the raised ring 111. The raised ring 111 is used to squeeze the telescopic block 122 when the outer hoop 110 moves upward. The hole of the outer hoop 110 is provided with a corresponding groove. The inner groove of the outer hoop 110 is limited by a spring to limit the limiting rod 112. The limiting rod 112 is used to prevent the inner hoop 120 from moving into the hole of the outer hoop 110. It should be noted that the raised ring 111 and the limiting rod 112 limit the inner hoop 120 at the same time. , so that the inner cable clamp 120 is always located in the central axial direction of the hole of the outer cable clamp 110. When performing bare wire operations on the medical wire, the limiting rod 112 needs to be removed, and then the outer cable clamp 110 is squeezed to make it cover the inner cable clamp 120. To remove the limiting rod 112, it is only necessary to squeeze the limiting rod 112 into the groove on one side so that the other side of the limiting rod 112 is disengaged from the groove. At this time, the other side of the limiting rod 112 is lifted out of the groove, and then the limiting rod 112 is pulled out from the other side. Furthermore, the telescopic control structure includes a limiting hollow column 221 fixed to the inside of the support limiting frame 200 and provided with a spiral groove inside, a rotating cylinder 225 rotating on the inner wall of the limiting hollow column 221 and having a sliding hole 226 processed on one side, and a telescopic limiting rod 220 sliding on the inner wall of the rotating cylinder 225. Specifically, the bottom of the telescopic limiting rod 220 is rotatably connected to a turntable 222, one end of the turntable 222 is fixedly connected to the bottom of the rotating cylinder 225, and the turntable 222 is a driving source. A fixed column 224 is processed on one side of the telescopic limiting rod 220, and the fixed column 226 is processed on the inner wall of the rotating cylinder 225. 4 slides on the inner wall of the sliding hole 226, and the fixed column 224 is also located in the spiral groove of the limiting hollow column 221. It is worth noting that by rotating the turntable 222, the rotating cylinder 225 rotates inside the limiting hollow column 221, and the fixed column 224 moves in the spiral groove of the limiting hollow column 221 and the sliding hole 226, thereby causing the telescopic limiting rod 220 to move upward or downward to achieve the telescopic function. A central buckle 223 is provided on the top of the telescopic limiting rod 220 for limiting the medical line, specifically a snap ring buckle; In other solutions of the telescopic control structure, the telescopic control structure is an electric push rod plus a center buckle 223 on the output end of the electric push rod, and the bending length of the medical wire is adjusted by electric adjustment, which is convenient and quick to use; The rotation control structure includes a rotating shaft 210, a first rod 213 provided on the rotating shaft 210, and a second rod 211 sleeved on the outer wall of the first rod 213 and slidable. A positioning pin 214 is provided on the top of the first rod 213, and evenly distributed positioning holes 215 are processed on one side of the second rod 211. The positioning pin 214 is located in the positioning hole 215 to limit the extension length of the second rod 211. The rotating shaft 210 rotates with the first rod 213 to increase the bending turning point of the medical line. A side buckle 212 is provided on the top of the second rod 211 to limit the medical line, specifically a spring press buckle. In order to further increase the bending and turning of the medical wire and prevent the propagation of noise, the medical wire is limited in three-dimensional space. An accommodating cavity 202 is provided on both sides of the support and limiting frame 200. A transmission threaded rod 204 is rotatably connected inside the accommodating cavity 202. The transmission threaded rod 204 is provided with a movable slider 203 that slides on the inner wall of the accommodating cavity 202. The rotating shaft 210 is fixedly connected to the top of the movable slider 203 through the base. It is worth noting that rotating the transmission threaded rod 204 causes the movable slider 203 to move inside the accommodating cavity 202, thereby moving the rotation control structure, causing the telescopic control structure and the two rotation control structures to be misaligned. In the three-dimensional plane, the bending and turning degree of the medical wire is relatively high. In other solutions for limiting the position of medical wires in three-dimensional space, electric guide rails are provided on both sides of the support limit frame 200, and the rotating shaft 210 is fixed on the electric slider through the base. The rotating control structure is moved on the electric guide rails through electric adjustment, making it more convenient and quick for medical staff to use.

[0031] In order to save costs, the operation process of this embodiment without using a motor is as follows: one end of the medical line is inserted into the electrocardiograph, and the other end is connected to the electrode sheet, and the two ends are fixed by the support and limit frame 200. Then, according to the distance between the electrocardiograph and the patient, the excess medical line part is placed on one side of the support and limit frame 200. First, the medical line is clamped into the center buckle 223, and then the turntable 222 is rotated so that the rotating cylinder 225 rotates inside the limiting hollow column 221, and the fixing column 224 is in the spiral groove of the limiting hollow column 221 and The sliding hole 226 moves, thereby causing the telescopic limit rod 220 to be extended to the appropriate position. Then, the medical staff needs to continue to insert the medical line into the two side buckles 212 respectively, rotate the transmission threaded rod 204, so that the movable slider 203 moves inside the accommodating cavity 202, and then move the rotating shaft 210 to the appropriate position. Then, the rotating shaft 210 is rotated again and the positioning pin 214 is positioned in the positioning hole 215 to control the extension length of the second rod body 211, so that the medical line limited by the center buckle 223 and the side buckle 212 is misaligned. In order to increase the dexterity of the product, the operation process of this embodiment when using a motor is as follows: one end of the medical wire is inserted into the electrocardiograph, and the other end is connected to the electrode sheet, and the two ends are fixed by the support and limit frame 200. Then, according to the distance between the electrocardiograph and the patient, the excess medical wire part is placed on one side of the support and limit frame 200. First, the medical wire is clamped into the center buckle 223, and the medical wire in 223 is driven by the electric push rod to be extended to the appropriate position. Then, the medical staff needs to continue to clamp the medical wire into the two side buckles 212 respectively, and then drive the electric slider to move the rotating shaft 210 to the appropriate position through the electric guide rail. Then, the rotating shaft 210 is rotated and the length of the second rod body 211 is controlled by the positioning pin 214 located in the positioning hole 215, so that the medical wires limited by the center buckle 223 and the side buckle 212 are misaligned. If we consider the three clips that limit the position of the medical cable as three points on a three-dimensional plane, we can understand that the three points are not on the same straight line. The lines formed by each of them are neither parallel nor perpendicular, which increases the bending degree of the medical cable, thereby hindering the propagation of noise generated by the medical cable. Compared with placing the medical cable haphazardly, this solution will not cause the medical cable to become tangled and knotted, and it also achieves the function of preventing noise propagation. In addition, the outer cable hoop 110 and the inner cable hoop 120 support the medical wire and circle the conductor 103 inside the protective shell 100, respectively, to support and fix the medical wire. At the same time, the inner cable hoop 120 can reduce the vibration of the conductor 103 while fixing it, thereby reducing the noise generated by itself. When the medical wire connector is severely worn and it is necessary to cut off the bare wire of the medical wire and reconnect it to the electrode sheet, the protective shell 100 is peeled off and the internal silencing and noise reduction layer 101 is taken out, so that the inner cable hoop 120 and the outer cable hoop 110 are exposed. The limiting rod 112 in the hole of the outer cable hoop 110 is squeezed into the groove on one side first, so that The other side of the limiting rod 112 is disengaged from the groove. At this time, the other side of the limiting rod 112 is lifted up to disengage from the groove, and then the limiting rod 112 is pulled out from the other side. Then the outer cable hoop 110 is pulled so that it is in the same plane as the inner cable hoop 120, so that the outer cable hoop 110 squeezes the telescopic block 122, and the elastic telescopic column 123 is squeezed into a compressed state, causing the cutting edge of the telescopic block 122 to cut the insulating layer 102. At this time, the staff only needs to take off the outer cable hoop 110 and the inner cable hoop 120 here to expose the conductor 103 of the medical wire. The outer cable hoop 110 and the inner cable hoop 120 are highly practical.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A medical cable for electrocardiograph for noise reduction, characterized in that: include: A protective shell (100), wherein a plurality of conductors (103) are provided inside the protective shell (100), an insulating layer (102) is provided around the conductors (103), and the interior of the protective shell (100) is filled with a sound-absorbing and noise-reducing layer (101); It also includes a support and limiting frame (200) sleeved on both ends of the protective shell (100), and fastening bolts (201) are provided on both sides of the support and limiting frame (200) for fixing the medical line. A telescopic control structure is provided in the middle of the support and limiting frame (200) for controlling the bending length of the protective shell (100), and rotation control structures are provided on both sides near the middle of the support and limiting frame (200) for controlling the bending angle of the protective shell (100). The telescopic control structure and the rotation control structure on the support and limiting frame (200) are combined to form a bending control for the protective shell (100), so that the protective shell (100) performs multiple bending turns on a three-dimensional level; A plurality of sets of outer cable hoops (110) and inner cable hoops (120) are further provided inside the protective shell (100), the inner cable hoops (120) slide in the holes of the outer cable hoops (110), and the insulating layer (102) and the conductor (103) are fixed in the holes of the inner cable hoops (120); The telescopic control structure comprises a limiting hollow column (221) fixed inside the supporting limiting frame (200) and provided with a spiral groove therein, a rotating cylinder (225) rotating on the inner wall of the limiting hollow column (221) and having a sliding hole (226) machined on one side, and a telescopic limiting rod (220) sliding on the inner wall of the rotating cylinder (225); The rotation control structure comprises a rotation shaft (210), a first rod body (213) arranged on the rotation shaft (210), and a second rod body (211) sleeved on the outer wall of the first rod body (213) and capable of sliding.

2. The electrocardiograph medical cable for noise reduction according to claim 1, characterized in that: The sound-absorbing and noise-reducing layer (101) is composed of a sponge and a shielding layer; The insulating layer (102) is made of rubber.

3. The electrocardiograph medical cable for noise reduction according to claim 2, characterized in that: An annular groove is formed around the inner cable hoop (120), a plurality of elastic telescopic columns (123) are provided at the bottom of the annular groove of the inner cable hoop (120), the telescopic ends of the elastic telescopic columns (123) are fixedly connected to the telescopic blocks (122), and a plurality of guide holes (121) are machined at the top of the annular groove of the inner cable hoop (120), the number of the guide holes (121) being the same as the number of the elastic telescopic columns (123); The telescopic block (122) is in the shape of an inverted triangle, with a cutting edge provided on the top; The cutting edge of the telescopic block (122) slides in the guide hole (121).

4. The electrocardiograph medical cable for noise reduction according to claim 3, characterized in that: A raised ring (111) is machined around the hole of the outer cable hoop (110), the bottom of the inner cable hoop (120) is locked in the raised ring (111), and an opposing groove is provided inside the hole of the outer cable hoop (110). A spring is used to limit a limiting rod (112) inside the opposing groove of the outer cable hoop (110), and the limiting rod (112) is used to prevent the inner cable hoop (120) from moving into the hole of the outer cable hoop (110) by itself; The raised ring (111) is used to squeeze the telescopic block (122) when the outer cable hoop (110) moves upward.

5. The electrocardiograph medical cable for noise reduction according to claim 4, characterized in that: When the telescopic block (122) is not squeezed, the elastic telescopic column (123) is in an extended state, and the cutting edge of the telescopic block (122) is located in the annular groove of the inner cable hoop (120); When the telescopic block (122) is squeezed and the elastic telescopic column (123) is in a compressed state, the cutting edges of the telescopic block (122) pass through the guide hole (121) and the cutting edges of the same group form a concentric circle.

6. The electrocardiograph medical cable for noise reduction according to claim 1, characterized in that: The bottom of the telescopic limit rod (220) is rotatably connected to a turntable (222), one end of the turntable (222) is fixedly connected to the bottom of the rotating cylinder (225), and a fixed column (224) is processed on one side of the telescopic limit rod (220); A center buckle (223) is provided on the top of the telescopic limiting rod (220) for limiting the medical line.

7. The electrocardiograph medical cable for noise reduction according to claim 6, characterized in that: The fixing column (224) slides on the inner wall of the sliding hole (226), and the fixing column (224) is also located in the spiral groove of the limiting hollow column (221).

8. The electrocardiograph medical cable for noise reduction according to claim 7, characterized in that: A positioning pin (214) is provided on the top of the first rod body (213), and evenly distributed positioning holes (215) are machined on one side of the second rod body (211); The positioning pin (214) is located in the positioning hole (215) and is used to limit the length of the second rod (211) extending therefrom; The rotating shaft (210) rotates with the first rod (213) to increase the bending turning point of the medical line; A side buckle (212) is provided on the top of the second rod body (211) for limiting the position of the medical line.

9. The electrocardiograph medical cable for noise reduction according to claim 8, characterized in that: The supporting and limiting frame (200) is provided with an accommodating cavity (202) on both sides, a transmission threaded rod (204) is rotatably connected inside the accommodating cavity (202), a movable slider (203) is provided on the transmission threaded rod (204) and slides on the inner wall of the accommodating cavity (202), and a rotating shaft (210) is fixedly connected to the top of the movable slider (203) through a base; The movable slider (203) moves inside the accommodating cavity (202) and is used to move the rotation control structure, so that the telescopic control structure and the two rotation control structures are misaligned.

10. The electrocardiograph medical cable for noise reduction according to claim 8, characterized in that: Electric guide rails are provided on both sides of the support and limit frame (200), and the rotating shaft (210) is fixed on the electric slider through a base.

Images