Percutaneous optical guidance vessel catheter deviceTechnical field
The present invention relates to a kind of vessel catheter device, especially relate to a kind of vessel catheter device of percutaneous optical guidance.
Background technology
The precondition that conduit is a lot of medical diagnosis on disease and treatment is placed at Ink vessel transfusing, at present catheter in blood vessel being sent into the method for blood vessel in body is under the perspective of X-ray and the guiding of wire guide, vessel catheter is delivered to target location, the shortcoming of this method needs could implement in the Code in Hazardous Special Locations such as conduit room, the radiology department etc. that are provided with x-ray, which greatly limits the use (as bedside uses) of the method, and medical worker needs to wear heavier plumbous clothing, be exposed in X-radiation, the health of medical worker and patient all can be subject to the harm of radiation.Although there is a large amount of research in interventional radiology radiation protection, these researchs can not the radiation hazradial bundle problem of substantial solution X-ray.
1991, the people such as David Huang and J.G.Fujumoto of Massachusetts Institute Technology proposed the concept of optical coherence tomography (OCT) first, adopt this technology successfully to microstructure and the coronary arterial wall imaging of human eye retina.The resolution of OCT reaches 10 ~ 20um, is about 10 times of intravascular ultrasound, almost reaches histological level.The appearance of frequency domain OCT especially of new generation, image taking speed is accelerated greatly, and imaging is safer, and image is more clear, has started the 3D epoch of OCT blood vessel imaging.
But when utilizing OCT to carry out diagnostic detection or treatment operation to blood vessel, need to insert vessel catheter in advance, again ultrasonic probe or OCT optic probe are sent into target vascular site along vessel catheter, and inserting of traditional vessel catheter need under X-ray examination, guided by seal wire and insert vessel catheter, its operation has Code in Hazardous Special Locations requirement, and makes medical worker be subject to irradiation and the damage of x-ray.
Summary of the invention
The object of the invention is for above deficiency, a kind of percutaneous optical guidance vessel catheter device is provided, this device makes medical personnel operate in the environment not having X-ray, can use by bedside, both the injury of X-ray had been avoided, operation place is unrestricted, and labor intensity and technical difficulty also alleviate greatly simultaneously.
In order to achieve the above object, percutaneous optical guidance vessel catheter device disclosed by the invention, comprises vessel catheter, micro-optical probe and signal transmission wire; Described micro-optical probe is arranged at the front end of described signal transmission wire, described micro-optical probe is arranged in described vessel catheter with the described signal transmission wire of part movably, and described micro-optical probe can be leant out or indentation by described vessel catheter front opening.
Above-mentioned micro-optical probe detection to signal exported by signal transmission wire.
The front end of above-mentioned vessel catheter is blunt round, and the front end of above-mentioned micro-optical probe is blunt round.
The external diameter of above-mentioned vessel catheter is 1mm-50mm, and internal diameter is 0.5mm-40mm, and the length of described vessel catheter is 2.0m-3.0m, and the relevant parameter of concrete vessel catheter can regulate according to the actual thickness of blood vessel, length and the application that will carry out.
The cross section of above-mentioned vessel catheter and described signal transmission wire is concentric circular, the inwall of described vessel catheter and the outer wall of described signal transmission wire are not more than 0.5-3mm apart, this distance contributes to the external diameter reducing described vessel catheter, also contribute in vessel catheter, sending into other diagnosis or therapeutic device, as sacculus and support simultaneously.
Above-mentioned vessel catheter can make the body of vessel catheter have pliability, the out of shape of blood vessel can be adapted to, all engineering materials again with certain support force are simultaneously made, as polyethylene or other meet the engineering in medicine material of intensity and toughness reguirements, in use, the rear end of described vessel catheter is connected with OCT optical diagnostics instrument.
Signal transmission wire in above-mentioned vessel catheter is connected with monitoring instrument, as for the ease of carrying out Real-Time Monitoring to the vascular pressure of patient, above-mentioned percutaneous optical guidance vessel catheter device is also provided with pressure cvd sensor outward, and described pressure cvd sensor is connected to the external end of described vessel catheter.
The invention has the advantages that, the optical guidance vessel catheter device provided has the function of conduit and seal wire simultaneously, its seal wire makes himself have and seeks footpath function, and there is certain support strength, during operation under the visual condition of optic probe, guide vessel catheter to follow blood vessel traveling together to advance, do not need completely to use the X-ray in traditional interventional therapy and wire guide, OCT optical diagnostics instrument and vessel catheter is only used just can, can use in public ward, medical worker and patient is avoided to be subject to the infringement of X-ray, alleviate the labor intensity of medical personnel simultaneously, convenient operation and popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of percutaneous optical guidance vessel catheter of the present invention.
Fig. 2 is schematic diagram when micro-optical probe is leant out by vessel catheter front opening in percutaneous optical guidance vessel catheter of the present invention.
In figure, each labelling is as follows:
1OCT optical diagnostics instrument, 2 signal transmission wires, 3 vessel catheters, 4 micro-optical probes.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to following examples.
As illustrated in fig. 1 and 2, percutaneous optical guidance vessel catheter device of the present invention, the vessel catheter 3 comprise that 2.0m is long, external diameter is 10mm, internal diameter is 8mm, front end is blunt round, being prepared into by polyethylene, front end is micro-optical probe 4 and the signal transmission wire 2 of blunt round.Micro-optical probe 4 is arranged at the front end of signal transmission wire 2, and the signal that micro-optical probe 4 detects can transmit out by signal transmission wire 2, and is connected on the OCT optical diagnostics instrument 1 of signal transmission wire 2 rear end.Micro-optical probe 4 is arranged in vessel catheter 3 with part signal transfer wire 2 is mobilizable, vessel catheter 3 is concentric circular with the cross section of signal transmission wire 2, the inwall of vessel catheter and the outer wall of signal transmission wire 2 are at a distance of 0.5mm, and micro-optical probe 4 can be leant out or indentation by vessel catheter 3 front opening.
In above-described embodiment, the selection of OCT optical diagnostics instrument is widely, can be existing any type of OCT optical diagnostics instrument, can select portable or large-scale as required.
During use, the vessel catheter 3 being provided with micro-optical probe 4 and signal transmission wire 2 is sent into blood vessel in the sheath pipe of inserting through skin in advance, after vessel catheter 3 intravasation, micro-optical probe 4 is leant out by vessel catheter 3 front opening, the computer display of OCT optical diagnostics instrument 1 demonstrates blood vessel structure and traveling, vessel catheter 3 and micro-optical probe 4 are sent into target location.
Also can be placed other training equipment to Ink vessel transfusing by vessel catheter 3, as sacculus and support, the object reaching inspection, monitoring or treat.
Execute in example above-mentioned, according to the situation of patient and can need length and the thickness of selecting vessel catheter, general length is 2.0m-3.0m, and external diameter is 1mm-50mm, and internal diameter is 0.5mm-40mm; The inwall of described vessel catheter and the outer wall distance of described signal transmission wire also adjust according to practical situation, are not more than 0.5-3mm apart.
The material being used for manufacturing vessel catheter is also very widely, as long as have certain pliability, can adapt to the out of shape of blood vessel, and the medical material again with certain support force simultaneously can be used for manufacturing vessel catheter.