阅读说明：本技术 Oct导管气流焊接工装 (OCT catheter air flow welding frock ) 是由 陈韵岱 杜华月 黄进宇 田峰 周亮 童国新 陶魁园 刘子旭 陆维 匡皓 于 2019-10-14 设计创作，主要内容包括：一种OCT导管气流焊接工装,它包括热风机,其特征是所述的热风机产生气流进入气流控制器,气流控制器将气流进入三通气管接头中,三通气管接头中的一路接加热器,在加热器中加热后进入加热管中,加热管对加热槽进行加热,加热槽的两端各安装有一个导管夹持块,导管夹持块将导管夹持在加热槽中；所述的加热管罩装在散热块中,所述的三通气管接头中的另两路气流通过气管接头进入散热块的安装空间中并从散热块的下部进入散热块中,同时从散热块上的散热孔流出以便对加热管进行散热防止温度过度。本发明既考虑到了安全防护,同时又对加热气流和加热时间进行了精确控制,有利于提高导管焊接作业的安全性和稳定性,提高生产效率和产品一致性。(An OCT (optical coherence tomography) catheter airflow welding tool comprises an air heater and is characterized in that the air heater generates airflow to enter an airflow controller, the airflow controller enables the airflow to enter a three-way air pipe joint, one path of the three-way air pipe joint is connected with a heater, the heater heats the airflow and then enters a heating pipe, the heating pipe heats a heating groove, two ends of the heating groove are respectively provided with a catheter clamping block, and a catheter is clamped in the heating groove by the catheter clamping blocks; the heating pipe cover is arranged in the radiating block, the other two paths of air flows in the three-way air pipe joint enter the mounting space of the radiating block through the air pipe joint and enter the radiating block from the lower part of the radiating block, and meanwhile the air flows out of the radiating holes in the radiating block so as to radiate the heating pipe and prevent the temperature from being excessive. The invention not only considers the safety protection, but also accurately controls the heating airflow and the heating time, is beneficial to improving the safety and the stability of the conduit welding operation, and improves the production efficiency and the product consistency.)

1. An OCT (optical coherence tomography) catheter airflow welding tool comprises an air heater (1) and is characterized in that airflow generated by the air heater (1) enters an airflow controller (2), the airflow controller (2) enables the airflow generated by the air heater to enter a three-way air pipe connector (3), one path of the three-way air pipe connector (3) is connected with a heater (4), the heater (4) is heated and then enters a heating pipe (5), the heating pipe (5) heats a heating groove (6), two ends of the heating groove (6) are respectively provided with a catheter clamping block (7), and a catheter (13) to be welded is clamped in the heating groove (6) by the catheter clamping blocks (7) for welding; the heating pipe (5) is covered in the radiating block (8), the other two paths of air flow in the three-way air pipe joint (3) enter the installation space (10) of the radiating block (8) through the air pipe joint (9) and enter the radiating block (8) from the lower part of the radiating block (8), and meanwhile, the air flow flows out of the radiating hole (11) in the radiating block (8) so as to radiate the heating pipe (5) to prevent the excessive temperature.

2. The OCT catheter gas flow welding tool of claim 1, wherein the catheter holder (7) and the heating slot (6) are coaxially mounted.

3. The OCT catheter gas flow welding tool of claim 1, wherein a diffuse reflection photoelectric switch (12) for sensing the clamping state of the catheter clamping block (7) is mounted at the lower part of the catheter clamping block.

4. The OCT catheter gas flow welding tool of claim 1, wherein the heating slot (6) is comprised of an upper portion and a lower portion, and the opening and closing of the upper portion and the lower portion are controlled pneumatically or electrically.

Technical Field

The invention relates to a tool clamp for manufacturing medical equipment, in particular to an OCT (optical coherence tomography) catheter manufacturing tool, and specifically relates to an OCT catheter airflow welding tool.

Background

At present, an intravascular tomographic imaging system is designed to be used for imaging blood vessels with the diameter larger than 1.5mm in cooperation with an imaging catheter, so that the diameter and the area of a lumen are accurately measured, the structures of the blood vessel wall and the intravascular implant are imaged, and then the plaque property is distinguished and the intravascular implant (a stent, a filter, a spring ring and the like) is evaluated.

The intravascular tomographic imaging system is a system based on the combination of an intravascular Optical Coherence Tomography (OCT) technology and an imaging catheter, and the OCT technology is a new intracoronary imaging technology which appears after intravascular ultrasound (IVUS), and compared with IVUS, the extremely high resolution of OCT makes it increasingly interesting for evaluating vulnerable plaque, guiding stent implantation, and especially for Acute Coronary Syndrome (ACS) diagnosis and treatment.

In 2011, the american society of cardiology/american heart association (ACCF/AHA) Coronary Intervention guideline recommended levels for IVUS in Percutaneous Coronary Intervention (PCI) were IIa, while those for OCT were not established due to insufficient evidence of evidence-based medicine. In 2012, the CLI-OPCI study showed that OCT-directed PCI treatment could significantly improve patient prognosis compared to the plain contrast-directed PCI treatment. Subsequently, OCT was classified as a grade IIb recommendation (grade B evidence level) for assessing lesion characteristics and optimizing the stent implantation procedure in the 2013 european cardiology society for stable coronary heart disease management guidelines, with a global evidence level equivalent to IVUS. In 2014, the recommendation level of OCT for optimizing PCI was elevated to a level IIa recommendation equivalent to IVUS in the european society of cardiology/european association of cardiothoracic surgery (ESC/EACTS) myocardial revascularization guideline. The ILUMIEN I study published in 2015 showed that OCT examinations performed before and/or after PCI could affect the intervention strategy of the surgeon. The ILUMIEN II study results show that OCT is not inferior to IVUS in guiding stent expansion. With the continuous update of the OCT technology and the publication of more prospective research data, the position of OCT in the field of coronary heart disease interventional diagnosis and treatment is certainly to be further promoted.

The OCT catheter is composed of multiple sections, welding fixation is needed in the preparation process, and in order to improve the production effect, a corresponding tool needs to be designed to improve the welding precision and effect.

Disclosure of Invention

The invention aims to design an OCT catheter airflow welding tool aiming at the urgent need of OCT catheter production.

The technical scheme of the invention is as follows:

an OCT (optical coherence tomography) catheter airflow welding tool comprises an air heater 1 and is characterized in that the air heater 1 generates airflow and enters an airflow controller 2, the airflow controller 2 enables the airflow generated by the air heater to enter a three-way air pipe connector 3, one path of the three-way air pipe connector 3 is connected with a heater 4, the heated airflow enters a heating pipe 5 after being heated in the heater 4, the heating pipe 5 heats a heating groove 6, two ends of the heating groove 6 are respectively provided with a catheter clamping block 7, and a catheter 13 to be welded is clamped in the heating groove 6 by the catheter clamping blocks 7 for welding; the heating pipe 5 is covered in the radiating block 8, the other two paths of air flows in the three-way air pipe joint 3 enter the installation space 10 of the radiating block 8 through the air pipe joint 9 and enter the radiating block 8 from the lower part of the radiating block 8, and simultaneously flow out from the radiating holes 11 on the radiating block 8 so as to radiate the heating pipe 5 and prevent the temperature from being excessive.

The conduit clamping block 7 and the heating groove 6 are coaxially arranged.

The lower part of the conduit clamping block 7 is provided with a diffuse reflection photoelectric switch 12 for sensing the clamping state of the conduit clamping block.

The heating groove 6 is composed of an upper part and a lower part, and the opening and closing of the upper part and the lower part are controlled pneumatically or electrically.

The invention has the beneficial effects that:

the invention not only considers the safety protection, but also accurately controls the heating airflow and the heating time, is beneficial to improving the safety and the stability of the conduit welding operation, and improves the production efficiency and the product consistency.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in fig. 1.

An OCT (optical coherence tomography) catheter airflow welding tool comprises an air heater 1, wherein airflow generated by the air heater 1 enters an airflow controller 2, the airflow controller 2 enables the airflow generated by the air heater to enter a three-way air pipe connector 3, one path of the three-way air pipe connector 3 is connected with a heater 4, the heated airflow enters a heating pipe 5 after being heated in the heater 4, the heating pipe 5 heats a heating groove 6, the heating groove 6 consists of an upper part and a lower part, and the upper part and the lower part are opened and closed through pneumatic or electric control (the opening and closing structure is not shown in the figure and is of a conventional structure and can be designed according to needs). Two ends of the heating groove 6 are respectively provided with a conduit clamping block 7, and the conduit clamping block 7 and the heating groove 6 are coaxially arranged. The pipe clamping block 7 clamps the pipe 13 to be welded in the heating groove 6 for welding; the heating pipe 5 is covered in the radiating block 8, the other two paths of air flows in the three-way air pipe joint 3 enter the installation space 10 of the radiating block 8 through the air pipe joint 9 and enter the radiating block 8 from the lower part of the radiating block 8, and simultaneously flow out from the radiating holes 11 on the radiating block 8 so as to radiate the heating pipe 5 and prevent the temperature from being excessive. The lower parts of the conduit clamping blocks 7 at the two ends are respectively provided with a diffuse reflection photoelectric switch 12 for sensing the clamping state of the conduit clamping blocks.

The invention is used for hot air welding of different sections of guide pipes, and mainly comprises an airflow controller, a heat dissipation block and a guide pipe clamping block,

the working principle of the invention is as follows:

the air flow from the air heater is switched by an air flow controller, and the air flow controller mainly controls the size of the air flow and the circulation time of the air flow; the airflow is divided into three paths after flowing out of the controller, and one path of the airflow passes through the heater to heat the airflow, so that the guide pipe can be conveniently welded; two outer two ways pass through the air pipe joint and get into the radiating block, and the air current gets into from the fast bottom of heat dissipation, flows from the fast top louvre of heat dissipation, and the purpose is dispelled the heat to the heating pipe all around, prevents that the high temperature from damaging the pipe or causing unexpected scald. The pipe clamping block and the heating groove of the heater are concentric, the pipe is fixed through the clamping blocks on two sides, when the pipe is placed in the heating groove, the photoelectric switch receives induction, the air flow in the air flow controller is switched on, and the heater starts to work.

The specific working procedures are as follows: the method comprises the steps of enabling a heater to be out of work, placing a conduit in a heating groove, sensing by a photoelectric switch, enabling an airflow controller to start working, enabling airflow to flow out, heating for a certain time, controlling airflow to be disconnected by the airflow controller, stopping heating by the heater, and taking down the conduit.

The parts not involved in the present invention are the same as or can be implemented using the prior art.