CN209361472U - Venous cardiac assist device and interventional therapy equipment using it - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a venous heart assist device and interventional treatment equipment using the same. The venous cardiac assist device includes: a balloon catheter, a first balloon, a second balloon and a third balloon; when in use, the second balloon is first controlled to be inflated in the right atrium; and then the first balloon is controlled to be inflated. The balloon and the third balloon are inflated to expand in the superior vena cava and the inferior vena cava respectively; after that, the second balloon is deflated to form a negative pressure in the right atrium; then the first balloon is controlled to balloon and the third balloon are deflated. The utility model adopts three balloons, combined with the cooperation of the corresponding control timing, can effectively improve the function of the right atrium, improve the perfusion effect, help improve microcirculation obstacles, accelerate the micro blood flow, and improve ischemia and hypoxia The state of the microcirculation is well helped, which is conducive to promotion and application.

Description

Venous cardiac assist device and interventional therapy equipment using it

technical field

The utility model relates to the technical field of medical equipment, in particular to a venous heart assist device and interventional treatment equipment using the same.

Background technique

At present, intra-aortic balloon pump (IABP) is the earliest auxiliary circulation method based on the theory of oxygen supply and oxygen consumption. It was first used clinically in 1968. In the early stage, IABP was mainly used for circulatory support in patients with cardiac perioperative hemodynamic instability, cardiogenic shock or heart failure, and surgical incision of blood vessels was usually required to implant an intra-aortic balloon . The emergence of percutaneous puncture technology in the 1980s made IABP have the advantages of less trauma, less complications and easy operation.

IABP is a device that uses the principle of "counterpulse" to run synchronously with the cardiac cycle of the heart, so as to increase the blood flow of the coronary arteries and reduce the afterload of the heart. A catheter with a balloon is implanted into the proximal end of the descending aorta. During systole, the gas in the balloon is rapidly emptied, causing an instantaneous drop in aortic pressure, reduced cardiac ejection resistance, decreased cardiac afterload, and increased cardiac output. Myocardial oxygen consumption is reduced. During the diastolic phase, the aortic valve closes and the air bag rapidly inflates to drive blood to the far and near sides of the aorta, increasing the diastolic pressure at the aortic root, increasing coronary blood flow and myocardial oxygen supply, and increasing systemic perfusion. However, the above-mentioned balloon catheter device in the prior art often uses a balloon, and is only used in the perfusion field of coronary arteries. However, there are few applications in the field of coronary veins, and the effect of the balloon catheter device in the prior art is not ideal when used.

The information disclosed in the background technology section is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art known to those skilled in the art.

Utility model content

The purpose of this utility model is to provide a venous heart assist device and the interventional treatment equipment using it, which can effectively improve the function of the right atrium, improve the perfusion effect of the coronary vein, help improve the microcirculation disorder, and speed up the micro blood flow. Improve the condition of ischemia and hypoxia, so that the microcirculation can be well improved.

In order to achieve the above object, the utility model adopts the following technical solutions:

In the first aspect, the utility model provides a venous heart assist device, which includes: a balloon catheter, a first balloon, a second balloon and a third balloon; The first balloon, the second balloon and the third balloon, the first balloon, the second balloon and the third balloon are respectively controlled by an independent air circuit, so that Each balloon can be selectively inflated and deflated.

As a further technical solution, the venous heart assist device further includes: a balloon pump set, the balloon pump set is arranged at the proximal end of the balloon catheter, and is respectively connected to the first A balloon, the second balloon and the third balloon are connected.

As a further technical solution, the venous heart assist device further includes: a control system, the control system is connected to the balloon pump set, and the control system is used to send at least one set of actions to the balloon pump set Instructions, each set of action instructions includes: the second balloon inflation instruction, the first balloon and the third balloon inflation instruction, the second balloon deflation instruction, the first balloon and the third balloon inflation instruction according to the time sequence control deflation command, the balloon pump set performs corresponding inflation and deflation actions according to the action command.

As a further technical solution, the venous heart assist device further includes: a pressure sensing device connected to the control system, and the pressure sensing device is used to respectively detect the pressure of the first balloon , the pressure of the second balloon and the third balloon and feed back to the control system.

As a further technical solution, the venous heart assist device also includes: an electrocardiogram sensing device connected to the control system, and the electrocardiogram sensing device is used to detect the cardiac signal spectrum and feed it back to the control system described above.

As a further technical solution, the maximum expansion volumes of the first balloon and the third balloon are both smaller than the maximum expansion volume of the second balloon.

As a further technical solution, the balloon catheter has a plurality of lumen structures, and the plurality of lumen structures at least include a central lumen arranged through and three gas channels arranged around the central lumen Lumen, the three air circuit lumens are respectively communicated with the first balloon, the second balloon and the third balloon.

As a further technical solution, the first balloon, the second balloon and the third balloon are all provided with developing parts.

By adopting the technical solution of the first aspect above, the utility model has the following beneficial effects:

The utility model provides a venous cardiac assisting device. The first balloon, the second balloon and the third balloon are respectively sent to the superior vena cava, the right atrium and the inferior vena cava through a balloon catheter. The second balloon is inflated to expand in the right atrium; then the first and third balloons are controlled to be inflated in the superior vena cava and the inferior vena cava respectively; after that, the second balloon is controlled to inflate Inflate to make it form a negative pressure in the right atrium; then control the deflation of the first balloon and the third balloon. The function improves the perfusion effect, helps to improve the microcirculation disorder, accelerates the micro-blood flow, improves the condition of ischemia and hypoxia, and makes the microcirculation get good help, which is beneficial to popularization and application.

In the second aspect, the present utility model also provides an interventional treatment device, which includes the above-mentioned venous cardiac assist device. Wherein, mainly speaking, the venous cardiac assist device includes: a balloon catheter, a first balloon, a second balloon and a third balloon; the distal end of the balloon catheter is sequentially sheathed on the first balloon , the second balloon and the third balloon, the first balloon, the second balloon and the third balloon are respectively controlled by independent air circuits, so that each balloon can Selective inflation and deflation contraction. Of course, other features have been described above and will not be repeated here.

By adopting the technical solution of the second aspect above, the utility model has the following beneficial effects:

The utility model provides an interventional therapy device, which has the same beneficial effect as the venous cardiac assisting device because the interventional therapy device includes the above-mentioned venous cardiac assisting device. Moreover, the interventional treatment device can not only be applied to coronary vein interventional treatment, but can also be applied to other fields, and it has strong versatility, which is beneficial to popularization and application.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic structural diagram of a venous heart assist device provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the use state of the venous heart assist device provided by the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a venous heart assist device provided by another embodiment of the present invention.

Icons: 1-superior vena cava; 2-first balloon; 3-right atrium; 4-second balloon; 5-inferior vena cava; 6-third balloon; 7-balloon catheter; 8-balloon Pump set; 9-ECG sensing device; 10-control system; 11-pressure sensing device.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the utility model, and are not intended to limit the utility model.

Embodiment one

As shown in FIGS. 1 to 3 , this embodiment provides a venous cardiac assist device, which includes: a balloon catheter 7, a first balloon 2, a second balloon 4, and a third balloon 6; the balloon catheter The distal end of 7 is sheathed in the first balloon 2, the second balloon 4 and the third balloon 6 in turn. It can be understood that the first balloon 2, the second balloon 4 and the third balloon 6 are sequentially spaced set at the distal end of the balloon catheter 7, of course, the distance between the various balloons can be flexibly set according to actual needs, similarly, the size of each balloon can also be made corresponding specific specifications according to different situations, here no longer limited. Wherein, preferably, the maximum expansion volumes of the first balloon 2 and the third balloon 6 are smaller than the maximum expansion volume of the second balloon 4 . Moreover, the first balloon 2, the second balloon 4 and the third balloon 6 are respectively controlled through independent air circuits, so that each balloon can be selectively inflated and deflated.

Therefore, in this embodiment, the first balloon 2 , the second balloon 4 and the third balloon 6 can be respectively delivered to the superior vena cava 1 , the right atrium 3 and the inferior vena cava 5 through the balloon catheter 7 .

When in use, firstly, control the inflation of the second balloon 4 so that it expands in the right atrium 3; 5 to inflate to form a sealing effect; afterward, deflate the second balloon 4 to form a negative pressure in the right atrium 3; then deflate the first balloon 2 and the third balloon 6 under control.

According to the principle of IABP, in the initial stage of diastole: first inflate the second balloon 4, then inflate the first balloon 2 and the third balloon 6; before systole: first deflate the second balloon 4, and then The first balloon 2 and the third balloon 6 are deflated, so that the function of assisting circulation can be achieved by deflation synchronously with the cardiac cycle. Moreover, this embodiment uses three balloons, combined with the cooperation of corresponding control timing, can effectively improve the function of the right atrium, improve the perfusion effect, help improve microcirculation disturbance, accelerate micro-blood flow, improve ischemia, The condition of hypoxia makes the microcirculation get good help, which is beneficial to popularization and application.

In this embodiment, in order to ensure independent control of each gas path. Preferably, the venous heart assist device further includes: a balloon pump set 8, the balloon pump set 8 is arranged at the proximal end of the balloon catheter 7, and the balloon pump set 8 is respectively connected to the first balloon through each independent air circuit. The balloon 2, the second balloon 4 and the third balloon 6 are connected. Furthermore, the balloon pump set 8 is also connected to a gas source device, which preferably uses nitrogen gas, which is non-toxic and harmless and has high safety. Of course, those skilled in the art can also make further improvements on this basis, for example: adding an air compressor or a gas filter and the like.

In this embodiment, in order to facilitate the control of the timing of the balloon counterpulsation, as a further technical solution, the venous heart assist device also includes: a control system 10, which is connected to the balloon pump set 8, and the control system 10 It is used to send at least one set of action commands to the balloon pump group 8, and each set of action commands sequentially includes: the second balloon 4 inflation command, the first balloon 2 and the third balloon 6 inflation command, the second balloon The deflation command of the balloon 4, the deflation command of the first balloon 2 and the third balloon 6, and the balloon pump set 8 perform corresponding inflation and deflation actions according to the sent action commands. That is to say, firstly, control the inflation of the second balloon 4 to expand it in the right atrium 3; then control the inflation of the first balloon 2 and the third balloon 6 to make it expand in the superior vena cava 1 and inferior The vein 5 is inflated; then, the second balloon 4 is controlled to deflate to form a negative pressure in the right atrium 3; and then the first balloon 2 and the third balloon 6 are deflated.

The venous heart assist device in this embodiment can be controlled in time by the QRS waveform of the electrocardiogram. For example: the venous heart assist device also includes an electrocardiogram sensing device 9 connected to the control system 10 , and the electrocardiogram sensing device 9 is used to detect the cardiac signal spectrum and feed it back to the control system 10 . Preferably, the electrocardiogram sensing device 9 is an electrocardiogram sensor.

In addition, as a further technical solution, the venous heart assist device further includes: a pressure sensing device 11, which is connected to the control system 10, and the pressure sensing device 11 is used to respectively detect the first balloon 2, The pressure of the second balloon 4 and the third balloon 6 is fed back to the control system 10 . The pressure sensing device 11 can monitor and feed back the pressure of the first balloon 2, the second balloon 4 and the third balloon 6 in real time, so that the first balloon 2, the second balloon 4 and the third balloon 6. Play the role of monitoring. When the balloon leaks, it can be found in time.

Of course, in order to better serve as a reminder, the venous heart assist device also includes: an alarm device, which is connected to the control system 10, and when the balloon leaks, an alarm can be given by sound. It can be flashed with the prompt light.

In this embodiment, as a further technical solution, the balloon catheter 7 has multiple lumen structures, and the multiple lumen structures include at least one central lumen arranged through and three gas channels arranged around the central lumen lumen (it can be understood that the three airway lumens and the central lumen are all integrated inside the balloon catheter 7), the three airway lumens are respectively connected with the first balloon 2, the second balloon 4 and the The third balloon 6 communicates. The overall structure of the balloon catheter 7 is more compact, and facilitates its delivery in blood vessels.

In this embodiment, as a further technical solution, a plurality of openings are provided on the side wall of the distal end of the balloon catheter 7, and the plurality of openings communicate with the central lumen respectively. These multiple openings can serve as suction ports for thrombus, which can be introduced into the body through the openings. Of course, these openings can also be used as delivery ports for therapeutic or diagnostic agents. Preferably, these openings are located between the first balloon 2 and the second balloon 4 , and may also be located between the second balloon 4 and the third balloon 6 .

In this embodiment, a coaxial design can be adopted for the connection relationship between the balloon and its corresponding air channel lumen, that is, the air channel lumen is perforated inside the balloon, and there is a gap between it and the inner wall of the balloon. Of course, the connection relationship between the balloon and its corresponding gas circuit lumen can also be set with a common wall, and the balloon and its corresponding gas circuit lumen share a section of arm, so that the gas shuttle area is larger and the gas shuttle resistance is smaller.

In this embodiment, as for the balloon catheter 7, its specific material is not limited, and it can be formed by compounding various materials. For example: the balloon catheter 7 includes a first structural layer (inner layer), a marker layer (middle layer) and a second structural layer (outer layer), and the first structural layer, the marker layer and the second structural layer are sequentially arranged from inside to outside Cascading settings. With such a configuration, it is possible to set desired characteristics such as suppression of bending of the catheter main body.

Preferably, as the constituent materials of the first structural layer and the second structural layer, polyamide resin, polyester polyamide resin, polyether polyamide resin, polyurethane, ABS resin, polyester elastomer resin, Any of polyurethane elastomer resin, fluororesin (PFA, PTFE, ETFE, etc.). In particular, by using ABS resin or nylon as the constituent material of the first structural layer and the second structural layer, appropriate strength can be imparted to the main body distal end. Furthermore, by using fluororesin, preferably PTFE, for the first structural layer, the operability of the guide wire inserted into the lumen is improved.

Preferably, the material constituting the marker layer is preferably an X-ray non-transmissive material such as barium sulfate, bismuth trioxide, tungsten and the like. In addition, in this embodiment, the balloon catheter 7 further includes: a reinforcement layer, which is arranged between any two adjacent layers of the first structural layer, the marker layer and the second structural layer. For example: the reinforcement layer can be a pre-embedded metal mesh. Preferably, the mesh shape constituting the metal mesh is not particularly limited, and it can be, for example, circular, approximately rectangular, or approximately elliptical. In addition, the reinforcing layer can also be a helical linear structure, and the strength of the catheter can be easily adjusted according to the number of helical turns.

In this embodiment, the first structural layer (inner layer), the marker layer (middle layer) and the second structural layer (outer layer) can be bonded to each other by a suitable adhesive, or connected by hot melt, or Integral molding by injection molding or the like. In addition, those skilled in the art can make adaptive improvements to the balloon catheter 7 on the basis of the above structure, for example: adding a hydrophilic coating on the surface of the balloon catheter 7, thereby increasing its lubricity, so that it can be easily pushed .

Preferably, in this embodiment, the first balloon 2 , the second balloon 4 and the third balloon 6 are all provided with developing parts, so as to confirm the position of each balloon under X-ray fluoroscopy. In this embodiment, the first balloon 2, the second balloon 4 and the third balloon 6 can also be improved, for example: each balloon can adopt a double-layer membrane structure, and the double-layer membranes are sheathed together , can expand and contract simultaneously to reduce the occurrence of air leakage. In addition, for each balloon, it can be made of macromolecular materials such as polyurethane, silicone rubber, silica gel or rubber, plastic or biofilm such as polyethylene or polytetrafluoroethylene (PTFE), or other elastic materials. made of materials.

To sum up, the utility model provides a venous cardiac assist device, in which the first balloon 2, the second balloon 4 and the third balloon 6 are respectively placed in the superior vena cava 1, the right atrium 3 and the Inferior vena cava 5, when in use, first, control the inflation of the second balloon 4 to make it expand in the right atrium 3; then control the inflation of the first balloon 2 and the third balloon 6 to make it expand in the superior vena cava respectively 1. Inferior vena cava 5 is inflated; afterward, deflate the second balloon 4 to form a negative pressure in the right atrium 3; then deflate the first balloon 2 and the third balloon 6 under control, this The utility model adopts three balloons, combined with the cooperation of corresponding control timing, can effectively improve the function of the right atrium, improve the perfusion effect, help improve microcirculation disturbance, accelerate micro-blood flow, and improve ischemia and hypoxia. Conditions, so that the microcirculation is well helped, which is conducive to popularization and application.

Embodiment two

The second embodiment provides an interventional treatment device, which includes the venous cardiac assist device described in the first embodiment. The technical content disclosed in the first embodiment is also applicable to the second embodiment. The technical features disclosed in the first embodiment will not be described repeatedly, and only the differences between the two will be described below. The interventional treatment equipment may include various equipment used in conjunction with a venous heart assist device.

For example: the interventional therapy equipment includes: X-ray equipment, which is connected with the control system 10 and is used to generate and control X-rays for radiological examination of human tissues. This type of equipment has necessary parts such as X-ray generating device, patient bed and equipment support device, filter plate, etc., and may also include signal analysis and display part, cooling system, body cavity treatment tube and treatment plan program, etc.

For example: the interventional treatment equipment includes: suction equipment and fluid supply equipment, and the suction equipment and fluid supply equipment can be respectively connected to the proximal end of the balloon catheter 7 .

To sum up, this embodiment provides an interventional therapy device, which has the same beneficial effects as the venous cardiac assist device because the interventional therapy device includes the above-mentioned venous cardiac assist device. Moreover, the interventional therapy device can be applied to coronary veins, coronary arteries, etc. at the same time, has strong versatility, and is conducive to popularization and application.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (9)

1. a kind of vein heart-assist device characterized by comprising foley's tube, the first sacculus, the second sacculus and third ball Capsule；The distal end of the foley's tube is successively set in first sacculus, second sacculus and the third sacculus, and described One sacculus, second sacculus and the third sacculus are controlled by independent gas circuit respectively, so that each sacculus can select Property is inflated expansion and deflation.

2. vein heart-assist device according to claim 1, which is characterized in that further include: sacculus pump group, the sacculus Pump group is set to the proximal end of the foley's tube, and by each independent gas circuit respectively with first sacculus, described second Sacculus is connected with the third sacculus.

3. vein heart-assist device according to claim 2, which is characterized in that further include: control system, the control System is connect with the sacculus pump group, and the control system is used to be sent to few set instruction to the sacculus pump group, often The group action command successively includes: that the instruction of the second inflated, the first sacculus and third inflated refer to according to timing control Enable, the second Deflation instruction, the first sacculus and third Deflation instruction, the sacculus pump group according to the action command into The corresponding inflation movement of row and deflating action.

4. vein heart-assist device according to claim 3, which is characterized in that further include: pressure sensor device, it is described Pressure sensor device is connect with the control system, and the pressure sensor device for detecting first sacculus, described respectively The pressure of second sacculus and the third sacculus simultaneously feeds back to the control system.

5. vein heart-assist device according to claim 3, which is characterized in that further include: electrocardiogram sensing device, institute It states electrocardiogram sensing device to connect with the control system, the electrocardiogram sensing device is for detecting heart signal map and anti- It feeds the control system.

6. vein heart-assist device according to claim 1, which is characterized in that first sacculus and the third ball The maximum swelling volume of capsule is respectively less than the maximum swelling volume of second sacculus.

7. vein heart-assist device according to claim 1, which is characterized in that the foley's tube has multiple lumens Structure, multiple luminal structures include at least a central lumen of perforation setting and are set to the central lumen periphery Three gas circuit lumens, three gas circuit lumens connect with first sacculus, second sacculus and the third sacculus respectively It is logical.

8. vein heart-assist device according to claim 1, which is characterized in that first sacculus, the second sacculus and Development section is provided on third sacculus.

9. a kind of interventional therapy equipment, which is characterized in that including vein heart assistance such as of any of claims 1-8 Device.