CN118161741A - Counterpulsation device and cardiac counterpulsation apparatus - Google Patents

Abstract

The invention relates to a counterpulsation device and heart counterpulsation equipment, wherein the counterpulsation device comprises a balloon, a catheter and a guide piece, and the balloon is provided with a deformable air cavity; the catheter is arranged in a hollow way and connected with the proximal end of the balloon, and the catheter can be used for inflating or deflating the balloon; a guide is connected with the distal end of the balloon, the guide including a guidewire lumen for threading a guidewire. The guide piece is connected with the distal end of the balloon, and the catheter is connected with the proximal end of the balloon, namely, the guide piece and the catheter are respectively arranged at the two ends of the balloon, so that the guide wire and the guide wire cavity on the guide piece cannot occupy the space in the catheter. So set up, the air current chamber cross-section of pipe is bigger, and the more air current of being convenient for flows in the pipe, has reduced the inflation and the pumping time of counterpulsation device, has reduced the resistance of inflating and pumping, guarantees sacculus fully to fill and gassing. The heart counterpulsation structure comprises the counterpulsation device, so that the time of inflation and air extraction can be reduced, and the resistance of inflation and air extraction is reduced.

Description

Counterpulsation device and cardiac counterpulsation apparatus

Technical Field

The invention relates to the technical field of aortic counterpulsation sacculus, in particular to a counterpulsation device and counterpulsation equipment.

Background

Aortic balloon counterpulsation (intra-aortic balloon pump, IABP) is an important therapeutic approach for emergency critical heart patients in clinic. The aortic balloon counterpulsation specifically refers to a treatment method which is characterized in that a balloon is placed between a descending aorta and a renal artery through a femoral artery puncture method, the balloon is driven and controlled to expand and contract through an aortic balloon counterpulsation pump, the balloon begins to be inflated in a diastole period and is deflated at the end of the diastole period, so that the aims of increasing coronary artery perfusion, reducing cardiac engineering and reducing cardiac load are achieved.

The counterpulsation device for realizing aortic balloon counterpulsation in the prior art mainly comprises a balloon and a catheter, wherein the balloon is inflated by ventilation in the balloon through the catheter, or the balloon is contracted by air suction in the balloon through the catheter. However, the conventional art counterpulsation devices generally need to be implanted through the aorta, and are limited by the size of the aorta and the conditional constraints of the vascular access, and the size of the counterpulsation device cannot be too large, resulting in a device that delivers gas in a catheter that is not too large. Further, the resistance is too high when the balloon is inflated or deflated through the catheter, and the balloon cannot be fully inflated or deflated in a short time.

Disclosure of Invention

Based on the above, it is necessary to provide a counterpulsation apparatus and a cardiac counterpulsation device for solving the problems of long inflation and deflation time and large resistance of the counterpulsation apparatus for aortic balloon counterpulsation.

A counterpulsation apparatus, the counterpulsation apparatus comprising:

A balloon having a deformable air cavity;

the catheter is arranged in a hollow way and connected with the proximal end of the balloon, and can be used for inflating or deflating the balloon;

the guide piece is connected with the distal end of the balloon, and comprises a guide wire cavity used for penetrating a guide wire.

In one embodiment, a side hole is formed in the outer wall of the guide piece, an outlet is formed in the end portion, away from the balloon, of the guide piece, and the side hole and the outlet are communicated with the guide wire cavity.

In one embodiment, the counterpulsation apparatus further comprises a pressure detector, wherein the pressure detector is electrically connected with the host, a containing groove is concavely formed on the cavity wall of the guide wire cavity, and the pressure detector is arranged in the containing groove.

In one embodiment, the part of the guide piece provided with the side hole is used as a reference section, and the outlet and the accommodating groove are respectively positioned at different ends of the reference section.

In one embodiment, the counterpulsation apparatus further includes a support member, wherein two ends of the support member are respectively connected to the catheter and the guide member, and wherein the support member is at least partially positioned within the balloon.

In one embodiment, the support is provided with a communication channel which communicates the interior of the catheter with the interior of the balloon.

In one embodiment, the communication channel comprises a gas guide cavity and a plurality of communication ports, the gas guide cavity is arranged in the support member, the gas guide cavity is communicated with the inside of the catheter, and the communication ports are arranged on the cavity wall of the gas guide cavity at intervals along the length direction of the support member so as to communicate the gas guide cavity with the gas guide cavity; and/or

The communication ports are arranged on the cavity wall of the air guide cavity at intervals along the circumferential direction of the supporting piece.

In one embodiment, the support member includes a plurality of connection portions, a plurality of the connection portions being located within the balloon, a plurality of the connection portions being connected between the catheter and the guide member, a plurality of the connection portions being spaced apart from each other to form the communication passage.

In one embodiment, the support further comprises a support body comprising a first end adjacent to the conduit and a second end adjacent to the guide, a portion of the connection being connected between the first end and the conduit and another portion of the connection being connected between the second end and the guide. A cardiac counterpulsation apparatus, the cardiac counterpulsation apparatus comprising:

A counterpulsation apparatus according to any of the preceding embodiments;

The air flow generator is connected with the counterpulsation device and can provide gas for the counterpulsation device or extract the gas in the counterpulsation device;

and the host is electrically connected with the counterpulsation device and the airflow generator so as to control the counterpulsation device to expand and contract.

According to the counterpulsation device, the catheter can be used for inflating and deflating the balloon, and the balloon is provided with the deformable air cavity. Thus, inflation of the catheter can expand the balloon and deflation of the catheter can occur during aspiration of the catheter. The expansion and contraction of the saccule are matched with the diastole and the systole of the heart, so that the work of the heart can be reduced, and the heart load can be reduced. And the guide piece is connected with the distal end of the balloon, and the catheter is connected with the proximal end of the balloon, namely, the guide piece and the catheter are respectively arranged at the two ends of the balloon, so that the guide wire and the guide wire cavity on the guide piece do not occupy the space in the catheter. The device can relatively increase the space of the air flow channel for inflating and exhausting in the catheter, thereby being convenient for more air flows in the catheter, reducing the inflating and exhausting time of the counterpulsation device, reducing the resistance of inflating and exhausting and ensuring that the saccule can be inflated fully and deflated completely every time.

Drawings

Fig. 1 is a schematic side view of a cardiac counterpulsation apparatus according to an embodiment of the present invention;

FIG. 2 is a side view of a counterpulsation apparatus of the cardiac counterpulsation apparatus of FIG. 1;

FIG. 3 is a cross-sectional view of the guide and pressure detector of the counterpulsation apparatus of FIG. 2 in one direction;

FIG. 4 is an expanded view of the counterpulsation apparatus of FIG. 2, shown axially cut away;

fig. 5 is an expanded view of another embodiment of the counterpulsation apparatus of fig. 2, shown in axial section;

FIG. 6 is an expanded view of the support member of the counterpulsation apparatus of FIG. 4;

fig. 7 is an expanded view of a support member in another embodiment of the counterpulsation apparatus of fig. 4;

Fig. 8 is an expanded view of the support member of the counterpulsation apparatus of fig. 5.

Reference numerals: 10. a cardiac counterpulsation apparatus; 100. a counterpulsation device; 110. a balloon; 111. an air cavity; 120. a conduit; 121. an air flow channel; 122. a first communication section; 123. a second communication portion; 130. a guide; 131. a guidewire lumen; 132. a side hole; 133. an outlet; 134. a receiving groove; 140. a support; 141. a communication passage; 141a, a communication port; 141b, an air guide cavity; 142. a connection part; 143. a support body; 150. a pressure detector; 200. a host; 20. an aorta; 30. and (3) a heart.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 shows a schematic side view of a cardiac counterpulsation apparatus according to an embodiment of the present invention, which provides a cardiac counterpulsation apparatus 10 for assisting pacing of a heart 30. The cardiac counterpulsation apparatus 10 includes counterpulsation apparatus 100, airflow generator (not shown, the same applies below), and host 200. An airflow generator is coupled to counterpulsation apparatus 100, the airflow generator being capable of providing gas to counterpulsation apparatus 100 or withdrawing gas from counterpulsation apparatus 100. The host 200 is electrically connected to the counterpulsation apparatus 100, and the host 200 is also electrically connected to the airflow generator. The host 200 can receive the signal sensed by the counterpulsation apparatus 100, and correspondingly control the airflow generator to provide air to the counterpulsation apparatus 100 or control the airflow generator to extract air to the counterpulsation apparatus 100 according to the signal sensed by the counterpulsation apparatus 100, so as to control the expansion and contraction of the counterpulsation apparatus 100. Thus, the counterpulsation apparatus 100 can correspondingly contract and expand in coordination with the contraction and the relaxation of the heart 30, thereby realizing the functions of reducing the work of the heart 30, reducing the load of the heart 30, improving the diastolic pressure and increasing the perfusion of the coronary artery.

Referring to fig. 2 and 3, in one embodiment, counterpulsation apparatus 100 includes balloon 110, catheter 120, and guide 130. The balloon 110 has a deformable air cavity 111, the air cavity 111 expanding when inflated and contracting when deflated. A catheter 120 is disposed hollow and connected to the proximal end of the balloon 110, the catheter 120 being capable of inflating or deflating the balloon 110. Guide 130 is connected to a distal end on balloon 110. The guide 130 includes a guidewire lumen 131, the guidewire lumen 131 being configured to receive a guidewire (not shown, infra) therethrough, the guidewire being configured to facilitate implantation of the counterpulsation apparatus 100 into a human body through the aorta 20.

In the counterpulsation apparatus 100, the catheter 120 can be inflated and deflated in the balloon 110, and the balloon 110 has a deformable air cavity 111. Thus, inflation of the catheter 120 can expand the balloon 110, and deflation of the catheter 120 can deflate the balloon 110. The inflation and deflation of balloon 110 in combination with the diastole and systole of heart 30 can reduce the work done by heart 30 and reduce the load on heart 30. In addition, the guide 130 is connected to the distal end of the balloon 110, and the catheter 120 is connected to the proximal end of the balloon 110, i.e., the guide 130 and the catheter 120 are disposed at two ends of the balloon 110, respectively, so that the guide wire and the guide wire lumen 131 on the guide 130 do not occupy the space in the catheter 120. By the arrangement, the space of the air flow channel 121 for inflating and exhausting in the catheter 120 can be relatively increased, so that more air flows can flow in the catheter 120 conveniently, the inflating and exhausting time of the counterpulsation device 100 is reduced, and the inflating and exhausting resistance is reduced.

It will be appreciated that in the field of interventional medical devices and related fields, "distal" refers to the end of the procedure that is remote from the operator and "proximal" refers to the end of the procedure that is proximate to the operator. The proximal placement of the catheter 120 can facilitate the placement of the catheter 120 in connection with the host 200 and the airflow generator to aspirate and inflate the balloon 110 through the catheter 120 and to facilitate control of the timing of aspiration and inflation by the host 200.

Conventionally, a guidewire lumen 131 is typically provided within the catheter 120 or similar structure such that the guidewire is movably disposed within the guidewire lumen 131 to assist in implantation of the counterpulsation apparatus 100. In this manner, the guidewire lumen 131 and guidewire occupy space within the catheter 120, thereby relatively reducing the space within the catheter 120 for delivering airflow. In various embodiments, the guide wire lumen 131 is disposed within the guide member 140, and the guide member 130 is disposed distally and the catheter 120 is disposed proximally, such that the guide wire lumen 131 does not occupy space within the catheter 120. Further, on the premise that the counterpulsation apparatus 100 can be smoothly implanted, the space in the catheter 120 is ensured, and the efficiency of inflation and air extraction is improved.

With respect to the aortic balloon counterpulsation technique, briefly, at the moment when the aortic valve 20 is closed at the beginning of diastole of the heart 30, the balloon 110 is rapidly inflated to increase the diastolic pressure at the root of the aortic valve 20 and the perfusion pressure of the coronary artery, so that the blood supply to the brain, upper limb arteries, renal arteries, lower limb arteries and other areas is also increased. Before the next systole of heart 30, balloon 110 is rapidly evacuated to form a relatively negative pressure at the root of aorta 20, assisting heart 30 to pump blood, drawing blood from heart 30, reducing left ventricular ejection resistance, reducing cardiac 30 afterload, increasing left ventricular ejection volume, reducing left ventricular end diastolic pressure, and reducing myocardial oxygen consumption. Thus, the combination of hemodynamic effects can achieve the functions of improving coronary blood supply, reducing heart 30 afterload and wall tension, increasing heart blood volume, maintaining blood pressure, and the like.

Referring to fig. 2 and 4, in one embodiment, the counterpulsation apparatus 100 further includes a support 140, wherein two ends of the support 140 are respectively connected to the catheter 120 and the guide 130, and the support 140 is at least partially positioned in the balloon 110. The support 140 is connected between the catheter 120 and the guide 130, the balloon 110 is also connected between the catheter 120 and the guide 130, and the support 140 is at least partially within the balloon 110. In this way, the support member 140 can support the balloon 110 to extend along the expected direction, so that the position of the guide member 130 relative to the catheter 120 is stable, and the phenomena of bending and the like caused by the pressure of the side wall of the main artery 20 during the implantation process of the counterpulsation device 100 are avoided, thereby avoiding influencing the implantation of the counterpulsation device 100.

It should be noted that, since the balloon 110 needs to be adaptively contracted or expanded according to the pacing state of the heart 30, the balloon 110 is generally soft as a whole, and by providing the support 140 connecting the catheter 120 and the guide 130 in the balloon 110, the balloon 110 can be supported, so that the counterpulsation apparatus 100 has a certain rigidity in the balloon 110, and the counterpulsation apparatus 100 can be pushed from the proximal end to reach the desired position.

Referring to fig. 4 and 5, in one embodiment, the support 140 is provided with a communication channel 141, and the communication channel 141 communicates the interior of the catheter 120 with the interior of the balloon 110. In this way, the air flow in the catheter 120 can be inputted into the balloon 110 through the communication passage 141, inflating the balloon 110; and, the air flow within balloon 110 can flow out through communication channel 141 to achieve deflation of balloon 110.

Referring to fig. 4, in one embodiment, the communication channel 141 includes a gas guiding cavity 141b and a plurality of communication ports 141a. The air guide cavity 141b is disposed in the support 140, and the communication port 141a is disposed on a cavity wall of the air guide cavity 142b to communicate the air guide cavity 142b with the air cavity 111. The air guide lumen 141b communicates with the interior of the catheter 120 such that the air flow generator can input or withdraw air to the balloon 110. The support 140 is provided with a plurality of communication ports 141a, and the communication ports 141a are arranged on the cavity wall of the air guide cavity 141b at intervals along the length direction of the support 140 so as to communicate the air guide cavity 141b with the air cavity 111. Thus, gas everywhere within the gas-guide lumen 141b can flow more quickly and efficiently from the support 140 into the balloon 110; or gas from various locations within balloon 110, can flow more quickly and efficiently from balloon 110 into support 140. Further, the inflation and deflation speed of the balloon 110 is increased, and the inflation and deflation resistance is reduced.

Referring to fig. 4 and 5, in one embodiment, the length extension direction of the balloon 110 is the same as the length extension direction of the support rod, and the expansion and contraction directions of the balloon 110 are perpendicular to the length extension direction of the support 140.

Referring to fig. 6 and 7, in an embodiment, the plurality of communication ports 141a may also be disposed on the cavity wall of the air guiding cavity 141b at intervals along the circumferential direction of the support 140. It can be appreciated that, since the support rod is located in the balloon 110, that is, the balloon 110 is wrapped outside the support rod, the plurality of communication ports 141a are distributed along the circumferential direction of the support member 140, so that gas can be provided or extracted to each place in the circumferential direction of the support rod at the same time, so as to facilitate improvement of the expansion and contraction efficiency of the balloon 110. The support rod may be specifically located at a central portion in the radial direction of the balloon 110.

Referring to fig. 6 and 7, the support rod may be a uniform tubular structure, for example, the support rod may be a circular tube, a uniform prismatic tube, or the like. Fig. 6 and 7 are expanded views of the support bar according to the various embodiments after being axially cut.

With continued reference to fig. 6 and 7, in one embodiment, as shown in fig. 6, the communication port 141a may be a circular hole. Alternatively, as shown in fig. 7, the communication port 141a may be a rectangular hole. Of course, the specific shape of the communication port 141a may be set to other shapes according to actual requirements, which will be described herein again.

Referring to fig. 5 and 8, the support 140 includes a plurality of connection portions 142, and the plurality of connection portions 142 are located in the balloon 110. The plurality of connection parts 142 are connected between the guide tube 120 and the guide 130, and the plurality of connection parts 142 are spaced apart from each other to form the communication passage 141. That is, the present embodiment may be used to support the balloon 110 from being deformed by providing a plurality of connection portions 142 connected between the catheter 120 and the guide 130. The gas within the catheter 120 may flow into or out of the balloon 110 through the spaces between the connections 142. Referring to fig. 5, the connection portion 142 may be specifically connected to a wall of the catheter 120.

Specifically, each of the connection portions 142 may be connected between the guide 130 and the catheter 120 in an elongated column shape to be commonly supported within the balloon 110.

It will be appreciated that a plurality of connectors 142 are spaced apart from one another near one end of the catheter 120 to form a communication channel 141 that enables the catheter 120 to communicate with the balloon 110. And a section of the plurality of connection parts 142 adjacent to the guide 130 may be spaced apart from each other or may be connected to each other.

Referring to fig. 5 and 8, in one embodiment, the support 140 may further include a support body 143, where the support body 143 includes a first end near the catheter 120 and a second end near the guide 130. A portion of the connection 142 is connected between the first end and the catheter 120, and another portion of the connection 142 is connected between the second end and the guide 130. That is, the supporting ability of the whole of the supporting member 140 can be improved by the supporting body 143, and the communication passage 141 is formed by the interval between the plurality of connecting portions 142.

Of course, in some embodiments, one end of the support body 143 may be directly connected to the guide 130, and the other end of the support body 143 may be connected to the plurality of connection parts 142, such that the communication port 141a is formed at a side of the support body 143 near the catheter 120, so that the gas in the catheter 120 can flow into the balloon 110 or flow out of the balloon 110.

Referring again to fig. 3, in one embodiment, a side hole 132 is formed in the outer wall of the guide member 130, and an outlet 133 is formed at the end of the guide member 130 away from the balloon 110, where the side hole 132 and the outlet 133 are both in communication with the guide wire lumen 131. In this manner, the guidewire can pass from the side hole 132 into the guidewire lumen 131 and out of the guidewire lumen 131 from the outlet 133.

It will be appreciated that the guide 130 is located distally, and that the end of the guide 130 distal from the balloon 110 is the head end of the guide 130. Thus, when the outlet 133 is provided at the head end, and the guide wire extends into the guide wire cavity 131 from the side hole 132 and extends out of the guide wire cavity 131 from the head end, the guide wire can enter the aorta prior to the counterpulsation device 100, so that the guide wire and the guide piece 130 cooperate with each other to facilitate implantation of the guide wire assisted counterpulsation device 100.

With continued reference to FIG. 3, in one embodiment, the wall of the side aperture 132 is curved or sloped toward the side proximate the outlet 133. In this way, the threading of the guide wire into the guide wire lumen 131 can be facilitated, and the guide wire can be moved in the direction of the outlet 133 under the guidance of the wall of the side hole 132.

Referring again to fig. 3, in one embodiment, counterpulsation apparatus 100 further includes a pressure detector 150, pressure detector 150 being configured to electrically connect with host 200. The guide wire cavity 131 has a recess 134 formed in a wall thereof, and the pressure detector 150 is disposed in the recess 134. The guidewire can be introduced into the guidewire lumen 131 through the side hole 132, i.e., the guidewire lumen 131 can be in communication with the aorta 20 through the side hole 132. The accommodating groove 134 is formed on the wall of the guide wire cavity 131, so that the accommodating groove 134 can also communicate with the inside of the aorta 20. In this way, by providing the pressure detector 150 in the accommodating groove 134, the blood pressure in the aorta 20 can be detected, and the pacing state of the heart 30, that is, whether the heart 30 is diastolic or systolic, can be determined.

After receiving the detection result of the pressure detector 150, the host 200 can adjust the inflation or deflation of the air flow generator into the balloon 110 accordingly. So configured, balloon 110 is capable of corresponding expansion and contraction in coordination with the diastole or systole of heart 30, thereby reducing the work performed by heart 30 and reducing the load on heart 30.

It can be understood that the duct 120 is provided with a first communicating portion 122 and a second communicating portion 123, and the first communicating portion 122 and the second communicating portion 123 are both in communication with the air flow channel 121 inside the duct 120. The first communication part 122 is connected with the gas flow generator to supply gas into the balloon 110 or to extract gas from the balloon 110; the second communicating portion 123 is connected to the main unit 200, and the wire of the main unit 200 penetrates into the air flow channel 121 through the second communicating portion 123 and extends to the pressure detector 150 to be connected to the pressure detector 150. Thus, the detection result of the pressure detector 150 can be conducted to the host 200. The air flow generator is not shown in fig. 1, so the host 200 is directly connected to both the first communication portion 122 and the second communication portion 123.

Referring to fig. 3 again, in one embodiment, a portion of the guide 130 with a side hole 132 is used as a reference section, and the outlet 133 and the accommodating groove 134 are respectively located at different ends of the reference section. It will be appreciated that the presence of the exit port 133 and the receiving slot 134 at different ends of the reference section avoids the pressure detector 150 from obstructing movement of the guidewire within the guidewire lumen 131 as the guidewire passes through the guidewire lumen 131 from the side port 132 and out the exit port 133. The above-mentioned reference section is referred to with reference K in fig. 3.

Specifically, the accommodating groove 134 may be specifically formed at the bottom of the guide wire cavity 131, and the accommodating groove 134 is formed along the length extending direction of the guide wire cavity 131, so as to avoid affecting the movement of the guide wire in the guide wire cavity 131.

Of course, in some embodiments, the receiving groove 134 may also be directly opened on the sidewall of the guide wire cavity 131. By adaptively adjusting the depth of the receiving slot 134 such that the pressure detector 150 is fully positioned within the receiving slot 134, it is also possible to avoid the pressure detector 150 affecting movement of the guidewire within the guidewire lumen 131.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. A counterpulsation apparatus, said counterpulsation apparatus comprising:

A balloon having a deformable air cavity;

the catheter is arranged in a hollow way and connected with the proximal end of the balloon, and can be used for inflating or deflating the balloon;

the guide piece is connected with the distal end of the balloon, and comprises a guide wire cavity used for penetrating a guide wire.

2. The counterpulsation apparatus according to claim 1, wherein a side hole is formed in an outer wall of said guide member, an outlet is formed in an end portion of said guide member away from said balloon, and said side hole and said outlet are both in communication with said guidewire lumen.

3. The counterpulsation apparatus according to claim 2, further comprising a pressure detector for electrical connection with the host, wherein a receiving groove is concavely formed in a wall of the guidewire lumen, and wherein the pressure detector is disposed in the receiving groove.

4. A counterpulsation apparatus according to claim 3, wherein the reference section is a portion of said guide member where said side hole is provided, and said outlet and said receiving groove are located at different ends of said reference section.

5. The counterpulsation apparatus according to claim 1, further comprising a support member, each of said support member being connected to said catheter and said guide member at opposite ends, said support member being at least partially within said balloon.

6. The counterpulsation apparatus according to claim 5, wherein said support member is provided with a communication channel that communicates said catheter interior with said balloon interior.

7. The counterpulsation apparatus according to claim 6, wherein said communication channel includes a gas-guiding cavity and a plurality of communication ports, said gas-guiding cavity being open in said support member, said gas-guiding cavity being in communication with said interior of said catheter, said plurality of communication ports being spaced apart along a length of said support member on a cavity wall of said gas-guiding cavity to communicate said gas-guiding cavity with said gas-guiding cavity; and/or

The communication ports are arranged on the cavity wall of the air guide cavity at intervals along the circumferential direction of the supporting piece.

8. The counterpulsation apparatus according to claim 6, wherein said support member includes a plurality of connection portions, a plurality of said connection portions being located within said balloon, a plurality of said connection portions being connected between said catheter and said guide member, a plurality of said connection portions being spaced apart from one another to form said communication channel.

9. The counterpulsation apparatus according to claim 8, wherein said support further includes a support body including a first end adjacent said conduit and a second end adjacent said guide, a portion of said connection being connected between said first end and said conduit and another portion of said connection being connected between said second end and said guide.

10. A cardiac counterpulsation apparatus, the apparatus comprising:

the counterpulsation apparatus of any of claims 1 to 9;

The air flow generator is connected with the counterpulsation device and can provide gas for the counterpulsation device or extract the gas in the counterpulsation device;

and the host is electrically connected with the counterpulsation device and the airflow generator so as to control the counterpulsation device to expand and contract.