CN220731223U - Medical equipment connection and signal transmission cable - Google Patents
Medical equipment connection and signal transmission cable Download PDFInfo
- Publication number
- CN220731223U CN220731223U CN202322424328.3U CN202322424328U CN220731223U CN 220731223 U CN220731223 U CN 220731223U CN 202322424328 U CN202322424328 U CN 202322424328U CN 220731223 U CN220731223 U CN 220731223U
- Authority
- CN
- China
- Prior art keywords
- core wire
- wire group
- signal transmission
- shielding layer
- transmission cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008054 signal transmission Effects 0.000 title claims abstract description 28
- 238000005187 foaming Methods 0.000 claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims description 10
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 8
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 claims 2
- 230000001954 sterilising effect Effects 0.000 abstract description 11
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to a medical device connection and signal transmission cable comprising: the outer sheath, the foaming PP belt and the shielding layer are sequentially arranged from outside to inside; the shielding layer is internally provided with a first core wire group and a second core wire group, and the first core wire group and the second core wire group are twisted in pairs; and a ground wire is arranged between the foaming PP belt and the shielding layer, and the ground wire is arranged along the axial direction of the cable. The medical equipment connection and signal transmission cable disclosed by the utility model is designed to resist corrosion, humidity, ultraviolet rays, abrasion, frequent bending, torsion and the like of chemicals; meets the environmental protection requirement of medical grade; meeting the requirements of high-temperature sterilization and industrial sterilization (ETO sterilization); the method is used for medical instrument connection and signal transmission, and can better meet the requirements of low power consumption, low delay and synchronous instantaneity.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a medical equipment connection and signal transmission cable.
Background
At present, the cable is used as a signal connecting wire between various electric appliances, meters and automatic devices, is mainly used for controlling, monitoring, interlocking circuits, protecting circuits and other occasions for signal transmission, transmitting control signals and other functions, and is widely applied to various fields. Medical devices are designed for highly specialized medical applications, and therefore the cables used by the medical devices must also be specially designed to provide optimal performance. By choosing appropriate materials and design methods, it is entirely possible to provide cable solutions that meet the current and future high-tech medical design requirements. Cables in medical devices may be used to provide more or less power, send signals, transmit data, or perform these functions simultaneously. Cables used in medical devices must be able to maintain consistency and reliability of signal transmission in a very wide range of environments.
Medical cables can be classified into: the requirements of blood transfusion and fluid infusion grade, invasive surgery, non-invasive monitoring, medical equipment internal use and the like, and different use grades are different on materials.
Aiming at medical instrument cables requiring high-temperature sterilization or industrial sterilization, the medical cable set also needs to be durable, stable in signals and resistant to frequent flushing.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the problems that the cable for medical equipment is used in some special environments in the prior art, but the cable for medical equipment is easy to age and damage, so that equipment failure is caused.
In order to solve the above technical problems, the present utility model provides a medical device connection and signal transmission cable, including: the outer sheath, the foaming PP belt and the shielding layer are sequentially arranged from outside to inside; the shielding layer is internally provided with a first core wire group and a second core wire group, and the first core wire group and the second core wire group are twisted in pairs; and a ground wire is arranged between the foaming PP belt and the shielding layer, and the ground wire is arranged along the axial direction of the cable. The medical equipment connection and signal transmission cable of the present utility model is designed to resist corrosion, moisture, ultraviolet light, abrasion, frequent bending, torsion, etc. of chemicals.
In one embodiment of the present utility model, cotton yarn is added between the first core wire group and the second core wire group for twisting.
In one embodiment of the present utility model, the first core wire group and the second core wire group have the same structure, and both the first core wire group and the second core wire group are composed of two core wires.
In one embodiment of the utility model, the core wire comprises an insulating layer and a conductor, the insulating layer being wrapped around the conductor.
In one embodiment of the present utility model, the insulating layer is made of low smoke zero halogen crosslinked polyethylene.
In one embodiment of the utility model, a filling layer is arranged between the first core wire group and the second core wire group and the hollow cavity in the shielding layer.
In one embodiment of the utility model, the cross section of the shielding layer is annular, an arched bending part is arranged on the circumference of the shielding layer, the bending part bends towards the inside of the circumference, a separation cavity is arranged between the bending part and the foaming PP belt, and the ground wire is arranged in the separation cavity.
In one embodiment of the present utility model, the material of the outer sheath is a thermoplastic elastomer.
In an embodiment of the utility model, the shielding layer is made of aluminum foil.
In an embodiment of the utility model, the ground wire is in contact with the outer wall of the shielding layer.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the medical equipment connection and signal transmission cable meets the medical-grade environmental protection requirement; meeting the requirements of high-temperature sterilization and industrial sterilization (ETO sterilization); the method is used for medical instrument connection and signal transmission, and can better meet the requirements of low power consumption, low delay and synchronous instantaneity.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic structural view of a medical device connection and signal transmission cable of the present utility model;
fig. 2 is a schematic structural view of the core wire of the present utility model.
Description of the specification reference numerals: the outer sheath 1, the foaming PP belt 2, the shielding layer 3, the bending part 31, the separation cavity 32, the first core wire group 4, the core wires 41, the insulating layer 411, the conductor 412, the second core wire group 5, the ground wire 6 and the filling layer 7.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1, a medical device connection and signal transmission cable of the present utility model includes: the outer sheath 1, the foaming PP belt 2 and the shielding layer 3 are sequentially arranged from outside to inside, and the outer sheath 1, the foaming PP belt 2 and the shielding layer 3 are coaxially arranged; the shielding layer 3 is internally provided with a first core wire group 4 and a second core wire group 5, the first core wire group 4 and the second core wire group 5 are twisted in pairs, and cotton yarns are added between the first core wire group 4 and the second core wire group 5 for twisting; a ground wire 6 is arranged between the foaming PP belt 2 and the shielding layer 3, and the ground wire 6 is arranged along the axial direction of the cable. And a filling layer 7 is arranged between the first core wire group 4, the second core wire group 5 and the hollow cavity in the shielding layer 3.
The cabling adopts constant tension untwisting equipment, and 2 groups of twisted wires are twisted by adding proper cotton yarns, so that the cotton yarns play roles of relieving core wire crosstalk and filling to ensure round appearance. The outside is wrapped with a layer of foaming PP area 2, and foaming PP area 2 plasticity is good, and fracture pulling force is strong, and bending fatigue is resisted, and density is little, tensile impact performance is good, convenient to use etc. advantages such as foaming PP area 2 has the impedance increase effect in addition, and impedance data is less when the cable, and foaming PP area 2 can increase 5 ~ 10Ω.
The cable is pulled into a ground wire 6 which is positioned on the inner side of the foaming PP belt 2 and is connected with the shielding layer 3, so that external interference is prevented, and capacitive current and short-circuit current are conducted.
In the above structure, the material of the outer sheath 1 is a medical grade thermoplastic elastomer. The material obtains a medical USP VI-grade certificate, and each batch of material can be contacted with a human body through cytotoxicity research and physicochemical experiments of heavy metals. The material has low hardness and good elasticity, the elongation at break reaches 430 percent under the normal temperature environment, the tearing strength reaches 14KN/m, and the material is suitable for frequent movement and bending and meets the requirements of high-temperature sterilization and industrial sterilization (ETO sterilization). During production, the extrusion pipe type production is used, the screw rod is pulled out, the screw cylinder, the hopper, the machine head and the suction pipe are cleaned before production, the machine can be started after OK is confirmed, and the machine can be flushed once again by the material to be produced, so that the thickness uniformity, the roundness, the appearance no impurity and the damage can be better ensured.
In the above-described structure, the first core wire group 4 and the second core wire group 5 are identical in structure, and both the first core wire group 4 and the second core wire group 5 are constituted by two core wires 41. Referring to fig. 2, the core wire 41 includes an insulating layer 411 and a conductor 412, and the insulating layer 411 is wrapped outside the conductor 412. The pair twisting pitches of the first core wire group 4 and the second core wire group 5 are required to be separated, so that crosstalk between the core wires can be effectively reduced, the requirements of low power consumption, low delay and synchronous instantaneity are met, the pitch is as small as possible, and the pitch is usually set according to the outer diameter of 8 times of the stranded wires, because the smaller the pitch is, the better the stability is.
The insulating layer 411 is made of low smoke zero halogen crosslinked polyethylene (XLPE). The material has the following properties:
1. insulating properties are: XLPE has simple structure, stable dielectric constant, maintains the original good insulativity of PE, and has insulation resistance a Further increases, the dielectric loss tangent is small and is not greatly influenced by temperature, thereby ensuring the characteristic impedance of the transmission line b Is a very good material for signal transmission lines;
2. heat resistance: XLPE has very excellent heat resistance, can not be decomposed or carbonized below 300 ℃, can reach 90 ℃ for a long time, and has a heat life of 40 years;
3. mechanical properties: the hardness, the rigidity, the wear resistance and the impact resistance of XLPE are all improved, so that the defect that PE is easy to crack due to environmental stress is overcome;
4. chemical resistance: XLPE has stronger acid-base resistance and oil resistance, the combustion products are mainly water and carbon dioxide, the harm to the environment is small, and the requirements of modern fire safety are met;
in addition, the insulation processing must ensure the stable insulation outer diameter, strictly control the insulation concentricity, and the concentricity of the high-frequency wire needs to be more than 90%, if the outer diameter is not round or the fluctuation is large, the distortion of the electric field can be caused, the electric field distribution is affected, and thus the electrical performance of the cable is affected.
Note that: the a refers to the ratio between the direct current voltage U and the leakage current I applied to the insulation, is a main index for reflecting the insulation characteristic of a wire and cable product, and reflects the electric breakdown or thermal breakdown bearing capacity of the cable product, and has very close relation with dielectric loss of insulation, gradual degradation of an insulation material in a working state and the like;
the above b is also called "characteristic impedance", which is not a direct current resistor, and belongs to the concept of long-line transmission. In the high frequency range, in the process of signal transmission, an instantaneous current is generated between the signal line and the reference plane (power supply or ground plane) due to the establishment of an electric field, if the transmission line is isotropic, a current I always exists as long as the signal is transmitted, and if the output level of the signal is V, the transmission line is equivalent to a resistor with the size of V/I in the process of signal transmission, and the equivalent resistor is called the characteristic impedance Z of the transmission line. During transmission of the signal, if the characteristic impedance of the transmission path changes, the signal will reflect at the junction where the impedance is discontinuous. Factors affecting the characteristic impedance include dielectric constant, dielectric thickness, line width, and copper foil thickness.
The conductor 412 is made of copper wires with high twisting roundness, smooth surface and lower finished product, the copper wire strand phenomenon can not occur in production, the copper wire strand can affect the insulation adhesive force, the insulation and the conductor can relatively move, and air can enter between the insulation and the conductor, so that the insulation layer and the air are insulated together, the impedance of the cable can be increased, the capacitance is reduced, and the like, so that the electrical parameters are difficult to control.
In the above structure, the cross section of the shielding layer 3 is circular, and an arched bending portion 31 is arranged on the circumference of the shielding layer 3, the bending portion 31 bends toward the inside of the circumference, a separation cavity 32 is arranged between the bending portion 31 and the foaming PP belt 2, and the ground wire 6 is arranged in the separation cavity 32. The shielding layer 3 is made of aluminum foil, and the aluminum foil is thick with a little thickness, so that equipment connection and signal transmission stability are improved. The ground wire 6 is in contact with the outer wall of the shielding layer 3.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A medical device connection and signal transmission cable, comprising: the outer sheath, the foaming PP belt and the shielding layer are sequentially arranged from outside to inside;
the shielding layer is internally provided with a first core wire group and a second core wire group, and the first core wire group and the second core wire group are twisted in pairs;
and a ground wire is arranged between the foaming PP belt and the shielding layer, and the ground wire is arranged along the axial direction of the cable.
2. The medical device connection and signal transmission cable of claim 1, wherein: and cotton yarn is added between the first core wire group and the second core wire group for stranding.
3. The medical device connection and signal transmission cable of claim 1, wherein: the first core wire group and the second core wire group have the same structure, and both the first core wire group and the second core wire group are composed of two core wires.
4. A medical device connection and signal transmission cable according to claim 3, wherein: the core wire comprises an insulating layer and a conductor, wherein the insulating layer is wrapped outside the conductor.
5. The medical device connection and signal transmission cable of claim 4, wherein: the insulating layer is made of low-smoke halogen-free crosslinked polyethylene.
6. The medical device connection and signal transmission cable of claim 1, wherein: and a filling layer is arranged between the first core wire group and the second core wire group and the hollow cavity in the shielding layer.
7. The medical device connection and signal transmission cable of claim 1, wherein: the cross-section of shielding layer is the ring form to be equipped with arched portion of bending on the circumference of shielding layer, the portion of bending is inwards buckled to the circumference, be equipped with the compartment cell body between portion of bending and the foaming PP area, the ground wire sets up in the compartment cell body.
8. The medical device connection and signal transmission cable of claim 1, wherein: the outer sheath is made of thermoplastic elastomer.
9. The medical device connection and signal transmission cable of claim 1, wherein: the shielding layer is made of aluminum foil.
10. The medical device connection and signal transmission cable of claim 9, wherein: the ground wire is in contact with the outer wall of the shielding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322424328.3U CN220731223U (en) | 2023-09-07 | 2023-09-07 | Medical equipment connection and signal transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322424328.3U CN220731223U (en) | 2023-09-07 | 2023-09-07 | Medical equipment connection and signal transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220731223U true CN220731223U (en) | 2024-04-05 |
Family
ID=90495697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322424328.3U Active CN220731223U (en) | 2023-09-07 | 2023-09-07 | Medical equipment connection and signal transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220731223U (en) |
-
2023
- 2023-09-07 CN CN202322424328.3U patent/CN220731223U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107316692B (en) | Tensile computer cable | |
| CN220731223U (en) | Medical equipment connection and signal transmission cable | |
| CN103295681B (en) | Drag chain cable and preparation technology thereof | |
| CN201215736Y (en) | Electric power cord for movement | |
| CN114914030B (en) | Buried optical cable | |
| CN218274086U (en) | Medical cable for surgical operation equipment | |
| CN206179556U (en) | Medical blood oxygen probe connection cable of high noise immunity | |
| CN215007669U (en) | High-flexibility stretch-proof halogen-free low-smoke fire-resistant cable | |
| CN204991268U (en) | Middling pressure variable frequency power cable | |
| CN201655415U (en) | Accompanying-video coaxial flexible cable for elevator | |
| CN206412101U (en) | A kind of resistance to torsion high tenacity control cable | |
| CN207993517U (en) | A kind of flat USB data line | |
| CN206401055U (en) | A kind of profile conductor twisted cable for being beneficial to protection insulating barrier | |
| CN203311889U (en) | Towline cable | |
| CN206058970U (en) | A kind of anti-torsion drum cable structure | |
| CN219658408U (en) | Cable and communication device | |
| CN215988147U (en) | Soft flame-retardant copper-damage-aging-resistant low-voltage power cable | |
| CN209328601U (en) | High-tension cable is used inside a kind of new-energy automobile | |
| CN217690558U (en) | Environment-friendly halogen-free low-smoke compression-resistant fireproof cable | |
| CN217485112U (en) | Multilayer signal shielding transmission cable | |
| CN214428362U (en) | Coaxial line for antitorque antistatic medical equipment | |
| CN214956049U (en) | Novel woven high-frequency wire | |
| CN214043150U (en) | Cold-resistant and distortion-resistant cable for 35kv rubber insulation sheath wind driven generator | |
| CN210837220U (en) | 47-core integrated cable | |
| CN203787179U (en) | Anti-interference power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |