Hot injection device and filter

Abstract

The present invention relates to a heat perfusion device and a filter. The filter includes a filter shell, a filter assembly and a heat exchange assembly. The filter assembly and the heat exchange assembly are arranged in a receiving chamber of the filter shell. The medicine liquid can be input from the liquid inlet of the filter assembly through a liquid inlet pipeline. Since the medicine inlet at one end of the medicine liquid channel of the heat exchange assembly is connected to the receiving chamber, the filtered medicine liquid can enter the medicine liquid channel from the receiving chamber. The heat exchange channel of the heat exchange assembly is adjacent to the medicine liquid channel and is heat-conductingly arranged. A heat exchange medium is introduced into the heat exchange channel, thereby effectively improving the heat exchange of the medicine liquid in the medicine liquid channel and improving the heating effect. The heated medicine liquid can be output from the liquid outlet pipeline. At the same time, since the medicine liquid enters from the medicine inlet and is discharged from the other end of the medicine liquid channel, the unidirectional flow of the medicine liquid in the medicine liquid channel is realized, thereby effectively emptying the air inside the medicine liquid channel, avoiding air residue and affecting the heat exchange efficiency with the heat exchange channel.

Description

Technical Field

[0001] The invention relates to the field of filtering technology, in particular to a hot perfusion device and a filter. Background Art

[0002] The traditional body cavity thermal perfusion technology is to heat the liquid medicine through a heating structure, filter it through a filtering structure, and then inject it into the body cavity through a catheter implanted in the body cavity, so that the liquid medicine circulates in the human body cavity, expands the effective area of ​​the liquid medicine in the body cavity, and promotes the absorption of the liquid medicine. However, the traditional thermal perfusion device needs to set up a heating structure and a filtering structure separately, which leads to a complex structure of the thermal perfusion device. At the same time, the heating efficiency of the heating structure is low, which affects the heating effect of the liquid medicine. Summary of the invention

[0003] Based on this, it is necessary to provide a heat perfusion device and a filter with a simple structure and high heating efficiency to address the above problems.

[0004] A filter, comprising:

[0005] A filter housing is formed with a receiving cavity;

[0006] A filter assembly is disposed in the accommodating cavity, a liquid inlet is formed on the filter assembly, and the liquid inlet is connected to the accommodating cavity through the filter assembly; and

[0007] A heat exchange component is arranged in the accommodating cavity, wherein the heat exchange component is formed with a heat exchange channel and a medicine liquid channel adjacent to the heat exchange channel and arranged for heat conduction, and a medicine inlet connected to the accommodating cavity is formed at one end of the medicine liquid channel.

[0008] In one embodiment, the heat exchange assembly includes a heat exchange shell, the heat exchange shell forms a heat exchange cavity, the heat exchange channel and the medicine liquid channel are formed in the heat exchange cavity, the heat exchange shell is arranged on the filter shell, and a connecting port connected to the accommodating cavity is formed on the side of the heat exchange shell facing the filter shell, and the medicine inlet is connected to the accommodating cavity through the connecting port.

[0009] In one embodiment, the liquid medicine channel and the heat exchange channel are arranged in the heat exchange cavity in a double vortex.

[0010] In one embodiment, the heat exchange component further includes two partitions, which are spaced apart and arranged in a double vortex in the heat exchange cavity to form two independent spiral channels, which are the medicine channel and the heat exchange channel respectively.

[0011] In one embodiment, the width of the medical solution channel is smaller than the width of the heat exchange channel.

[0012] In one of the embodiments, a positioning tube is formed on the bottom wall of the filter shell, and the positioning tube is inserted into the liquid inlet of the filter assembly.

[0013] In one embodiment, the heat exchange component is located above the filter component.

[0014] In one embodiment, the filter further includes a pressure relief component, the filter component is formed with a liquid inlet channel, the liquid inlet channel penetrates one end of the filter component to form a liquid inlet, the liquid inlet channel penetrates the other end of the filter component, the pressure relief component is arranged at the other end of the filter component and can block the liquid inlet channel, and the pressure relief component can make the liquid inlet channel communicate with the accommodating chamber under the action of pressure.

[0015] In one embodiment, the pressure relief component includes a plug body, an elastic member and a pressure relief member, the pressure relief member is arranged on the other end of the filter component, one end of the plug body can block the liquid inlet channel, the other end of the plug body is arranged on the pressure relief member through the elastic member, a pressure relief port is opened on the pressure relief member, and the liquid inlet channel is connected with the accommodating chamber through the pressure relief port.

[0016] A thermal perfusion device, comprising:

[0017] Filters as described above;

[0018] a liquid inlet pipeline, connected to the liquid inlet of the filter assembly; and

[0019] The liquid outlet pipeline is connected with the other end of the liquid medicine channel.

[0020] When the above-mentioned heat perfusion device and filter are in use, the filter assembly is arranged in the accommodating chamber of the filter shell, and the heat exchange assembly is arranged in the accommodating chamber. The liquid medicine to be filtered can enter the filter assembly through the liquid inlet of the filter assembly through the liquid inlet pipeline. Since the liquid inlet is connected with the accommodating chamber through the filter assembly, the liquid medicine filtered by the filter assembly can enter the accommodating chamber of the filter shell. Since the medicine inlet at one end of the liquid medicine channel of the heat exchange assembly is connected with the accommodating chamber, the filtered liquid medicine can further enter the liquid medicine channel. The heat exchange channel of the heat exchange assembly is adjacent to the liquid medicine channel and is heat-conductingly arranged. The heat exchange medium is introduced into the heat exchange channel, thereby effectively improving the heat exchange of the liquid medicine in the liquid medicine channel and improving the heating effect. The heated liquid medicine can be output from the liquid outlet pipeline. At the same time, since the liquid medicine enters from the medicine inlet and is discharged from the other end of the liquid medicine channel, the unidirectional flow of the liquid medicine in the liquid medicine channel is realized, thereby effectively emptying the air inside the liquid medicine channel, avoiding air residue and affecting the heat exchange efficiency with the heat exchange channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0024] Figure 1 is a cross-sectional view of a filter in one embodiment;

[0025] Figure 2 for Figure 1 An exploded schematic diagram of the filter shown;

[0026] Figure 3 for Figure 2 Schematic diagram of the structure of the heat exchange channel and the liquid medicine channel;

[0027] Figure 4 for Figure 1 A cross-sectional view of the filter assembly and the pressure relief assembly;

[0028] Figure 5 for Figure 4 An exploded schematic diagram of the filter assembly and the pressure relief assembly is shown.

[0029] Description of reference numerals:

[0030] 10. Filter, 100. Filter housing, 110. Accommodating chamber, 120. Positioning tube, 130. Liquid inlet connector, 200. Filter assembly, 210. Liquid inlet, 220. Liquid inlet channel, 230. Filter element, 240. Liquid inlet tube, 242. Filter port, 250. Support, 300. Heat exchange assembly, 310. Heat exchange channel, 320. Liquid channel, 322. Drug inlet, 324. Drug outlet Port, 330, heat exchange shell, 332, heat exchange cavity, 334, connecting port, 336, shell body, 338, cover body, 341, medicine outlet connector, 342, heat exchange connector, 350, separator, 360, plugging member, 400, pressure relief assembly, 410, plug body, 412, blocking portion, 414, guide portion, 420, elastic member, 430, pressure relief member, 432, pressure relief port, 434, guide hole. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] See also Figure 1 and Figure 2 The filter 10 in one embodiment of the present invention comprises a filter shell 100, a filter assembly 200 and a heat exchange assembly 300, wherein the filter shell 100 is formed with a receiving chamber 110; the filter assembly 200 is arranged in the receiving chamber 110, and a liquid inlet 210 is formed on the filter assembly 200, and the liquid inlet 210 is communicated with the receiving chamber 110 through the filter assembly 200; the heat exchange assembly 300 is arranged in the receiving chamber 110, and the heat exchange assembly 300 is formed with a heat exchange channel 310 and a medicine liquid channel 320 adjacent to the heat exchange channel 310 and arranged for heat conduction, and a medicine inlet 322 communicated with the receiving chamber 110 is formed at one end of the medicine liquid channel 320.

[0033] When the filter 10 is in use, the filter assembly 200 is disposed in the receiving chamber 110 of the filter housing 100, and the heat exchange assembly 300 is disposed in the receiving chamber 110, and the liquid medicine to be filtered can enter the filter assembly 200 through the liquid inlet 210 of the filter assembly 200. Since the liquid inlet 210 is connected with the receiving chamber 110 through the filter assembly 200, the liquid medicine filtered by the filter assembly 200 can enter the receiving chamber 110 of the filter housing 100. Since the drug inlet 322 at one end of the liquid medicine channel 320 of the heat exchange assembly 300 is connected with the receiving chamber 110, the filtered liquid medicine can further enter the liquid medicine channel 320. The heat exchange channel 310 of the heat exchange assembly 300 is adjacent to the liquid medicine channel 320 and is heat-conductingly arranged, and a heat exchange medium is introduced into the heat exchange channel 310, thereby effectively improving the heat exchange of the liquid medicine in the liquid medicine channel 320 and improving the heating effect. At the same time, since the medicine liquid enters from the medicine inlet 322 and is discharged from the other end of the medicine liquid channel 320, the one-way flow of the medicine liquid in the medicine liquid channel 320 is realized, and the air inside the medicine liquid channel 320 can be effectively emptied to avoid air residue affecting the heat exchange efficiency with the heat exchange channel 310.

[0034] In one embodiment, the heat exchange assembly 300 includes a heat exchange shell 330, the heat exchange shell 330 forms a heat exchange cavity 332, the heat exchange channel 310 and the liquid medicine channel 320 are formed in the heat exchange cavity 332, the heat exchange shell 330 is arranged on the filter shell 100, and a communication port 334 communicating with the accommodating cavity 110 is formed on the side of the heat exchange shell 330 facing the filter shell 100, and the medicine inlet 322 is communicated with the accommodating cavity 110 through the communication port 334. The heat exchange shell 330 is provided to facilitate the formation of the heat exchange channel 310 and the liquid medicine channel 320, thereby facilitating the heat exchange between the heat exchange channel 310 and the liquid medicine channel 320. At the same time, the heat exchange and filtration of the liquid medicine can be effectively separated, so that the filtration of the liquid medicine is realized in the accommodating cavity 110, and the liquid medicine can effectively enter the liquid medicine channel 320 through the communication port 334, so that the heat exchange of the liquid medicine is realized in the heat exchange cavity 332.

[0035] Specifically, the heat exchange shell 330 includes a shell body 336 and a cover body 338. The shell body 336 surrounds the heat exchange cavity 332. The shell body 336 is disposed on the filter shell 100. The communication port 334 is provided on the shell body 336. One side of the shell body 336 is opened to form an inlet. The cover body 338 is covered on the inlet. By forming the inlet on the shell body 336, it is convenient to form the heat exchange channel 310 and the liquid medicine channel 320 in the heat exchange cavity 332 through the inlet.

[0036] Optionally, the inlet of the shell body 336 is provided with a sealing ring, and the cover body 338 can abut against the sealing ring. By being provided with the sealing ring, the sealing performance of the cover body 338 to the inlet of the shell body 336 can be further improved to prevent the liquid medicine from leaking from the inlet.

[0037] In one embodiment, a medicine outlet connector 341 is provided on the cover body 338, and the medicine outlet connector 341 is connected to the medicine outlet 324 at the other end of the medicine liquid channel 320. Since the medicine liquid after heat exchange can be output from the medicine outlet 324 at the other end of the medicine liquid channel 320, the medicine outlet connector 341 is formed on the cover body 338, thereby facilitating the connection of the subsequent medicine liquid circulation pipeline and improving the stability of the connection.

[0038] In one embodiment, at least two heat exchange joints 342 are further provided on the cover body 338, and the at least two heat exchange joints 342 are respectively connected to the opposite ends of the heat exchange channel 310. Since the heat exchange channel 310 is used to pass the heat exchange medium, the heat exchange medium can enter from one end of the heat exchange channel 310 and flow out from the other end of the heat exchange channel 310. By providing two heat exchange joints 342 on the cover body 338, the heat exchange channel 310 can be conveniently connected to an external heat exchange system, which facilitates the circulation of the heat exchange medium, thereby improving the heat exchange efficiency and ensuring the heat exchange effect on the liquid medicine.

[0039] In this embodiment, the heat exchange medium is water, which enters the heat exchange channel 310 from a heat exchange joint 342 and flows out from another heat exchange joint 342 along the heat exchange channel 310. In other embodiments, the heat exchange medium may also be other media capable of heat exchange, such as refrigerant.

[0040] In one embodiment, the filter shell 100 has an opening on one side facing the heat exchange shell 330, and the filter component 200 can be placed in the accommodating cavity 110 of the filter shell 100 through the opening. The heat exchange shell 330 is arranged on the filter shell 100 and blocks the opening, so that the filter component 200 can be effectively arranged in the accommodating cavity 110, and the filtered medical liquid can effectively enter the medical liquid channel 320 through the connecting port 334.

[0041] Specifically, the opening of the filter housing 100 is provided on the seal, and the heat exchange housing 330 can be in contact with the seal. By being provided on the seal, the sealing performance of the opening of the filter housing 100 can be further improved to avoid leakage of the liquid medicine.

[0042] In one embodiment, since the heat exchange channel 310 and the drug liquid channel 320 are adjacent to each other and are heat-conductingly arranged, the flow direction of the heat exchange medium and the flow direction of the drug liquid can be consistent.

[0043] In another embodiment, the flow direction of the heat exchange medium in the heat exchange channel 310 can be opposite to the flow direction of the drug liquid. Since the heat exchange medium is used to heat the drug liquid, when the high-temperature heat exchange medium enters the heat exchange channel 310 and performs heat exchange with the drug liquid near the drug outlet 324, the heat absorption efficiency of the drug liquid can be guaranteed. Along the flow direction of the heat exchange medium, the temperature of the heat exchange medium gradually decreases, but the temperature of the drug liquid also gradually decreases, so that the temperature difference between the heat exchange medium and the drug liquid is relatively stable, which can effectively improve the heat exchange efficiency of the heat exchange medium and ensure the heat exchange effect.

[0044] See also Figure 2 and Figure 3 In one embodiment, the liquid medicine channel 320 and the heat exchange channel 310 are arranged in the heat exchange cavity 332 in a double vortex. By arranging the liquid medicine channel 320 and the heat exchange channel 310 in a double vortex, the liquid medicine channel 320 and the heat exchange channel 310 are arranged compactly, and the heat exchange length can be effectively extended. At the same time, the liquid medicine channel 320 and the heat exchange channel 310 can be fully contacted for heat exchange, so that the opposite sides of the liquid medicine channel 320 can be in contact with the heat exchange channel 310, which can further improve the heat exchange efficiency and ensure the heat exchange efficiency of the liquid medicine.

[0045] In other embodiments, the medicine liquid channel 320 and the heat exchange channel 310 can also be arranged around each other in the heat exchange cavity 332, or the medicine liquid channel 320 and the heat exchange channel 310 can be arranged in the heat exchange cavity 332 in a double helix, or the medicine liquid channel 320 and the heat exchange channel 310 can also be arranged in the heat exchange cavity 332 in a maze manner, as long as effective heat exchange between the medicine liquid and the heat exchange medium can be achieved.

[0046] In one embodiment, the heat exchange assembly 300 further includes two separators 350, which are arranged at intervals and are arranged in a double vortex configuration, and form two independent spiral channels, which are the medicine channel 320 and the heat exchange channel 310. By providing two separators 350, mutually independent medicine channels 320 and heat exchange channels 310 can be effectively formed in the heat exchange space, so that the formation process of the medicine channel 320 and the heat exchange channel 310 is simple.

[0047] In one embodiment, the width of the liquid medicine channel 320 is smaller than the width of the heat exchange channel 310. Since the liquid medicine channel 320 has a small width, when the liquid medicine enters the liquid medicine channel 320, it can quickly spread along the surface of the partition plate 350, effectively expanding the heat exchange area between the liquid medicine and the heat exchange medium, and further improving the heat exchange efficiency.

[0048] Specifically, since the two separators 350 are arranged in a double vortex, the spacing between the two separators is smaller than the spacing between the two separators 350 forming the liquid medicine channel 320. For example, the spacing between the two separators 350 forming the liquid medicine channel 320 may be 1mm-5mm, and the spacing between the two separators 350 forming the heat exchange channel 310 may be 5mm-20mm. Of course, the spacing between the separators 350 may also be adjusted according to the size of the heat exchange shell 330. If the size of the heat exchange shell 330 is large, the spacing between the two separators 350 may be appropriately increased. If the size of the heat exchange shell 330 is small, the spacing between the two separators 350 may be appropriately reduced, as long as the heat exchange between the liquid medicine and the heat exchange medium can be guaranteed.

[0049] In this embodiment, the separator 350 is made of a material with good thermal conductivity, so as to facilitate heat exchange between the heat exchange medium and the liquid medicine. For example, the separator 350 can be made of a thermally conductive metal such as copper, or other thermally conductive non-metallic materials.

[0050] In one embodiment, the drug inlet 322 and the drug outlet 324 at opposite ends of the drug liquid channel 320 are respectively formed on opposite ends of two partitions 350, and sealing members 360 are respectively provided on opposite ends of the two partitions 350. The sealing members 360 are used to separate the drug liquid channel 320 from the heat exchange channel 310 to prevent the drug liquid from mixing with the heat exchange medium.

[0051] In other embodiments, the heat exchange channel 310 and the liquid medicine channel 320 are independent pipelines, and the liquid medicine channel 320 and the heat exchange channel 310 are arranged in a double vortex in the heat exchange cavity 332 .

[0052] See also Figure 1 In one embodiment, the heat exchange component 300 is located above the filter component 200. When in use, the liquid medicine is first filtered through the filter component 200, and then the filtered liquid medicine gradually rises in the accommodating cavity 110 and enters the liquid medicine channel 320 from the medicine inlet 322, so that the gas in the liquid medicine channel 320 can be gradually discharged to avoid the existence of gas affecting the heat exchange efficiency of the liquid medicine.

[0053] In one embodiment, the liquid inlet 210 is formed on the bottom wall of the filter assembly 200 or at a position close to the bottom wall, so that the liquid medicine can be gradually filtered from the bottom wall of the filter assembly 200 or at a position close to the bottom wall and then enter the accommodating chamber 110. With the bottom wall of the accommodating chamber 100, the liquid level of the liquid medicine gradually rises, and the gas in the accommodating chamber 110 can be gradually discharged. When the liquid medicine enters the liquid medicine channel 320, since a one-way flow is realized in the liquid medicine channel 320, and the width of the liquid medicine channel 320 is small, the gas in the liquid medicine channel 320 can be further discharged, avoiding the presence of gas in the circulation of the liquid medicine in the filter 10, and avoiding the gas remaining in the liquid medicine, resulting in a reduction in the effective heat exchange surface and affecting the heat exchange efficiency between the liquid medicine and the heat exchange medium.

[0054] In one embodiment, a positioning tube 120 is formed on the bottom wall of the filter housing 100, and the positioning tube 120 is inserted into the liquid inlet 210 of the filter assembly 200. The positioning tube 120 is provided to facilitate the liquid medicine to enter the filter assembly 200 through the positioning tube 120, and the filter assembly 200 is inserted into the positioning tube 120, so that the position of the filter assembly 200 can be effectively positioned, so as to improve the stability of the filter assembly 200 in filtering the liquid medicine.

[0055] In this embodiment, the positioning tube 120 is integrally formed on the bottom wall of the filter housing 100, which can further improve the stability of the positioning of the filter assembly 200 through the positioning tube 120. In other embodiments, the positioning tube 120 can also be omitted, and the filter assembly 200 can be directly placed in the accommodating cavity 110, or a limiting protrusion is provided on the inner wall of the filter housing 100, and the position of the filter assembly 200 in the accommodating cavity 110 is limited by the limiting protrusion.

[0056] In one embodiment, a liquid inlet connector 130 is provided on the outer wall of the filter housing 100, and the liquid inlet connector 130 is connected to the positioning tube 120. The liquid inlet connector 130 can be conveniently connected to the filter housing 100, thereby facilitating the input of the liquid medicine into the filter housing 100.

[0057] See also Figure 4 and Figure 5 In one embodiment, the filter assembly 200 is formed with a liquid inlet channel 220, and the liquid inlet channel 220 penetrates one end of the filter assembly 200 to form a liquid inlet port 210. The liquid medicine enters the liquid inlet channel 220 from the liquid inlet port 210, and can pass through the filter assembly 200 through the liquid inlet channel 220, thereby achieving a filtering effect on the liquid medicine. Specifically, the filter assembly 200 includes a filter element 230 and a liquid inlet pipe 240, the filter element 230 is sleeved on the liquid inlet pipe 240, the liquid inlet pipe 240 forms the liquid inlet channel 220, and a filter port 242 connected to the liquid inlet channel 220 is provided on the side wall of the liquid inlet pipe 240, and the liquid inlet channel 220 penetrates one end of the liquid inlet pipe 240 to form a liquid inlet port 210. The liquid inlet pipe 240 is provided to facilitate the arrangement of the filter element 230, and can play a role in supporting the filter element 230, thereby improving the filtration stability of the filter element 230.

[0058] In this embodiment, the filter element 230 is formed by folding the filter screen. In other embodiments, the filter element 230 can also be other structures as long as it can achieve the filtration of the liquid medicine.

[0059] See also Figure 4 and Figure 5 In one embodiment, the filter 10 further includes a pressure relief component 400. The liquid inlet channel 220 of the filter component 200 runs through the other end of the filter component 200. The pressure relief component 400 is disposed at the other end of the filter component 200 and can block the liquid inlet channel 220. Since the liquid inlet channel 220 further runs through the other end of the filter component 200, when the pressure of the liquid medicine input from the liquid inlet 210 is relatively high, the pressure relief component 400 can release the blockage of the other end of the liquid inlet channel 220 under the action of the liquid medicine pressure, so that the liquid medicine enters the accommodating chamber 110 from the other end of the liquid inlet channel 220, thereby achieving pressure relief of the liquid medicine, preventing the filter component 200 from being damaged due to excessive liquid medicine pressure, and effectively ensuring the stability of filtration.

[0060] In one embodiment, the pressure relief component 400 includes a plug body 410, an elastic member 420 and a pressure relief member 430. The pressure relief member 430 is disposed on the other end of the filter component 200. One end of the plug body 410 can block the liquid inlet channel 220. The other end of the plug body 410 is disposed on the pressure relief member 430 through the elastic member 420. A pressure relief port 432 is provided on the pressure relief member 430. The liquid inlet channel 220 is connected to the accommodating chamber 110 through the pressure relief port 432. When the pressure of the liquid medicine is relatively large and can overcome the elastic force of the elastic member, the liquid medicine pushes the plug body 410 in a direction away from the filter component 200, so that the plug body 410 contacts the blockage of the liquid inlet channel 220, and the liquid medicine can be decompressed from the liquid inlet channel 220 through the pressure relief port 432 into the accommodating chamber 110. The pressure relief member 430 is provided to facilitate installation of the plug body 410 and the elastic member 420 , thereby facilitating the purpose of blocking and pressure relief.

[0061] Specifically, the plug body 410 includes a blocking portion 412 and a guide portion 414 disposed on the blocking portion 412. A guide hole 434 is provided on the pressure relief member 430. When the blocking portion 412 blocks the liquid inlet channel 220, the guide portion 414 is inserted into the guide hole 434, and the axial direction of the guide hole 434 is consistent with the axial direction of the liquid inlet channel 220. The elastic member 420 is a spring, which is sleeved on the guide portion 414, and one end of the spring abuts against the blocking portion 412, and the other end abuts against the pressure relief member 430. By the guide portion 414 moving in the guide hole 434, the stability of the movement of the blocking portion 412 during the pressure relief process can be effectively improved, thereby improving the stability of the blocking portion 412 in blocking or pressure relief.

[0062] In one embodiment, the filter assembly 200 further includes a support member 250, the filter element 230 and the liquid inlet pipe 240 are arranged on the support member 250, the support member 250 is located on the side of the filter element 230 facing the pressure relief assembly 400, and the liquid inlet channel 220 further penetrates the support member 250. The pressure relief member 430 is arranged on the support member 250, and the plug body 410 can block the liquid inlet channel 220 on the support member 250. By setting the support member 250, the pressure relief assembly 400 can be effectively supported, and the pressure relief assembly 400 is prevented from being directly arranged on the filter element 230, which not only affects the stability of the arrangement, but also affects the stability of the filtration of the filter element 230.

[0063] In one embodiment, the hot perfusion device includes the filter 10, the liquid inlet pipeline and the liquid outlet pipeline in any of the above embodiments. The liquid inlet pipeline is connected to the liquid inlet 210 of the filter assembly 200; the liquid outlet pipeline is connected to the other end of the liquid medicine channel 320. By setting the liquid inlet pipeline, it is convenient for the liquid medicine to be stably input into the liquid inlet 210, and by setting the liquid outlet pipeline, it is convenient for the liquid medicine to be input into the liquid outlet pipeline through the liquid outlet 324 at the other end of the liquid medicine channel 320, thereby facilitating the delivery of the liquid medicine to the human body that needs treatment or other locations that need treatment.

[0064] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A filter, characterized in that: The filters include: A filter housing is formed with a receiving cavity; A filter assembly is disposed in the accommodating cavity, a liquid inlet is formed on the filter assembly, and the liquid inlet is connected to the accommodating cavity through the filter assembly; and A heat exchange component is arranged in the accommodating cavity, wherein the heat exchange component is formed with a heat exchange channel and a medicine liquid channel adjacent to the heat exchange channel and arranged for heat conduction, and a medicine inlet communicating with the accommodating cavity is formed at one end of the medicine liquid channel; The heat exchange assembly comprises a heat exchange shell, the heat exchange shell forms a heat exchange cavity, the heat exchange channel and the liquid medicine channel are formed in the heat exchange cavity, the heat exchange shell is arranged on the filter shell, a communication port communicating with the accommodating cavity is formed on one side of the heat exchange shell facing the filter shell, and the medicine inlet is communicated with the accommodating cavity through the communication port; The heat exchange shell comprises a shell body and a cover body, the shell body encloses the heat exchange cavity, the shell body is arranged on the filter shell, the communication port is opened on the shell body, one side of the shell body is opened to form an inlet, and the cover body is arranged on the inlet; The liquid medicine channel and the heat exchange channel are arranged in the heat exchange cavity in a double vortex; The heat exchange component also includes two separators, which are spaced apart in the heat exchange cavity and are arranged in a double vortex configuration to form two independent spiral channels, which are the medicine channel and the heat exchange channel respectively.

2. The filter according to claim 1, characterized in that The width of the medical liquid channel is smaller than the width of the heat exchange channel.

3. The filter according to claim 1 or 2, characterized in that: A positioning tube is formed on the bottom wall of the filter shell, and the positioning tube is inserted into the liquid inlet of the filter assembly.

4. The filter according to claim 1 or 2, characterized in that: The heat exchange component is located above the filter component.

5. The filter according to claim 1 or 2, characterized in that: It also includes a pressure relief component, the filter component is formed with a liquid inlet channel, the liquid inlet channel passes through one end of the filter component to form a liquid inlet, the liquid inlet channel passes through the other end of the filter component, the pressure relief component is arranged at the other end of the filter component and can block the liquid inlet channel, and the pressure relief component can make the liquid inlet channel communicate with the accommodating chamber under the action of pressure.

6. The filter according to claim 5, characterized in that The pressure relief component includes a plug body, an elastic member and a pressure relief member. The pressure relief member is arranged on the other end of the filter component. One end of the plug body can block the liquid inlet channel. The other end of the plug body is arranged on the pressure relief member through the elastic member. A pressure relief port is opened on the pressure relief member. The liquid inlet channel is connected with the accommodating chamber through the pressure relief port.

7. A hot perfusion device, characterized in that: include: The filter according to any one of claims 1 to 6; A liquid inlet pipeline, connected to the liquid inlet of the filter assembly; and The liquid outlet pipeline is connected with the other end of the liquid medicine channel.

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