A medical pulse pump

Abstract

This application relates to a medical pulse pump, which includes a pump component and a pressure stabilizing bladder; the pump component is provided with a pump pressure chamber, a liquid inlet channel, and a liquid outlet channel; one end of the liquid inlet channel is communicated with the pump pressure chamber, and the other end is communicated with the outside; one end of the liquid outlet channel is communicated with the pump pressure chamber, and the other end is communicated with the outside; the flushing liquid flows unidirectionally into the pump pressure chamber along the direction from the liquid inlet channel to the pump pressure chamber; and flows out of the pump pressure chamber unidirectionally along the direction from the pump pressure chamber to the liquid outlet channel; the pressure stabilizing bladder is arranged in the liquid outlet direction of the flushing liquid, a pressure regulating channel extending to the surface of the pressure stabilizing bladder is formed in the pump pressure chamber, and a ventilation port communicated with the outside is opened at a position of the pressure stabilizing bladder far away from the pressure regulating channel, so as to buffer the pressure when the internal pressure of the pump pressure chamber is greater than the threshold value; a pressure regulating channel extending to the surface of the pressure stabilizing bladder is formed in the pump pressure chamber, and a ventilation port communicated with the outside is opened at a position of the pressure stabilizing bladder far away from the pressure regulating channel, so that the pressure stabilizing bladder buffers the internal pressure of the pump pressure chamber, thereby ensuring the stable flow rate of the pumped flushing liquid.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a medical pulse pump. Background Art

[0002] The liquid inlet of the medical pulse pump body is connected to the flushing liquid bag, which is usually suspended. For surgeries that require a long flushing time and some delicate surgical procedures, such as cleaning of wounds with new tissues during recovery, it is necessary to ensure that the pressure of the pulse pump is stable, thereby ensuring that the flow of the flushing liquid pumped out from the pulse pump is stable.

[0003] Chinese patent CN213372654U discloses a pulse pump and a tooth washer. The pulse pump comprises: a pump body, which is provided with a pump pressure chamber, a water inlet hole and a water outlet hole. The pump pressure chamber is an open cavity structure. The water inlet hole and the water outlet hole both connect the pump pressure chamber to the outside. The water inlet hole is used to introduce water into the pump pressure chamber, and the water outlet hole is used to lead water out of the pump pressure chamber. The cavity wall of the pump pressure chamber is convexly provided with a convex ring surrounding along the opening direction of the pump pressure chamber; a pressure block, which is detachably connected to the pump body and is provided with a pressure cylinder, which protrudes into the pump pressure chamber and is spaced apart from the convex ring in the opening direction of the pump pressure chamber; a sealing ring, which is located between the convex ring and the pressure cylinder, and the sealing ring elastically contacts with the convex ring and also elastically contacts with the pressure cylinder; a piston, which is sleeved and matched with the sealing ring and elastically contacts with the sealing ring; a driver, which is used to drive the piston to reciprocate in the cavity opening direction of the pump pressure chamber.

[0004] The above patent solves the sealing problem of the pulse pump, but still has the following defects:

[0005] The above patent does not provide a corresponding pressure-stabilizing structure. When the flushing liquid bag is hung above the appropriate height or there is an unexpected pressure fluctuation, the volume of flushing liquid entering the pump pressure chamber will be greater than the preset volume, which will cause the internal pressure of the pump pressure chamber to be higher than the reference pressure when the flushing liquid is pumped out, causing the pressure at the liquid outlet to be higher than the reference pressure, and ultimately causing the flow rate of the pumped flushing liquid to be greater than the reference flow rate, thereby affecting the cleaning effect. Summary of the invention

[0006] In order to solve the problems existing in the above-mentioned prior art, the purpose of this application is to provide a medical pulse pump to solve the technical problem in the prior art that when the flushing liquid is pumped in, the pressure in the pump pressure chamber is too high, resulting in an excessively large flushing liquid flow rate when the flushing liquid is pumped out.

[0007] A medical pulse pump described in the present application includes a pump component and a pressure-stabilizing capsule;

[0008] The pump element is provided with a pump pressure chamber, a liquid inlet channel and a liquid outlet channel; one end of the liquid inlet channel is connected to the pump pressure chamber, and the other end is connected to the outside; one end of the liquid outlet channel is connected to the pump pressure chamber, and the other end is connected to the outside; the flushing liquid flows into the pump pressure chamber unidirectionally along the direction from the liquid inlet channel to the pump pressure chamber, and flows out of the pump pressure chamber unidirectionally along the direction from the pump pressure chamber to the liquid outlet channel;

[0009] The pressure-stabilizing bag is arranged in the outflow direction of the flushing liquid, a pressure-regulating channel extending to the surface of the pressure-stabilizing bag is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a point of the pressure-stabilizing bag away from the pressure-regulating channel, so that the pressure-stabilizing bag can buffer the pressure when the internal pressure of the pump pressure chamber is greater than a threshold value.

[0010] Preferably, the medical pulse pump also includes a one-way flow structure, which is arranged at the connection between the pump pressure chamber and the liquid outlet channel, the one-way flow structure is in a constricted shape toward the liquid outlet channel and the opening at one end of the one-way flow structure close to the liquid outlet channel opens or closes with the change of air pressure in the pump pressure chamber.

[0011] Preferably, the one-way flow structure comprises two elastic petals, the two elastic petals are arranged opposite to each other, and the side surfaces of the two elastic petals are connected.

[0012] Preferably, the one-way flow structure comprises a hollow elastic member, the hollow elastic member is in a conical shape with a diameter gradually decreasing away from the pump pressure chamber, and at least two petal-shaped pieces are formed at one end of the hollow elastic member away from the pump pressure chamber.

[0013] Preferably, the pump member comprises a pump body and a connecting member, wherein the pump body and the connecting member are connected; the pump pressure chamber is formed in the pump body, and the liquid inlet channel and the liquid outlet channel are both formed on the connecting member;

[0014] The pressure-stabilizing bag is connected to the connecting piece, and at least part of the outer surface of the pressure-stabilizing bag abuts against the connection between the liquid inlet channel and the pump pressure chamber; and the pressure-stabilizing bag is formed with a through hole along the direction from the pump pressure chamber to the liquid outlet channel, and the through hole is connected to the one-way flow structure; the flushing liquid enters the one-way flow structure along the through hole.

[0015] Preferably, the pump body and the connecting piece are snap-connected.

[0016] Preferably, the medical pulse pump further comprises a sealing ring, and the sealing ring is arranged at the connection between the connecting piece and the pump body.

[0017] Preferably, the middle portion of the pump body is wavy.

[0018] Preferably, the medical pulse pump further comprises a pressure block, and the pressure block is connected to one end of the pump member close to the pump pressure chamber.

[0019] Preferably, guide grooves extending along the setting direction of the pump pressure chamber are formed on both sides of the pressure block.

[0020] The medical pulse pump described in this application has the following advantages:

[0021] By setting the pressure-stabilizing bag, the pressure-stabilizing bag is set in the outflow direction of the flushing liquid, and a pressure-regulating channel extending to the surface of the pressure-stabilizing bag is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a place of the pressure-stabilizing bag away from the pressure-regulating channel, so that the pressure-stabilizing bag can buffer the pressure when the internal pressure of the pump pressure chamber is greater than a threshold value, thereby ensuring that when the flushing liquid is pumped out, the flow rate of the pumped flushing liquid is stable within a reference flow rate range, thereby ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a medical pulse pump described in the present application;

[0023] Figure 2 is another structural schematic diagram of a medical pulse pump described in the present application;

[0024] Figure 3 is a cross-sectional view of a medical pulse pump described in the present application;

[0025] Figure 4 is a schematic diagram of the pressure stabilizing capsule and the one-way flow structure;

[0026] Figure 5 is a cross-sectional view of the connecting piece described in the present application;

[0027] Figure 6 It is a schematic diagram of the flow direction of the flushing liquid pumped into the medical pulse pump described in the present application;

[0028] Figure 7 It is a schematic diagram of the flow direction of flushing liquid pumped out by a medical pulse pump described in the present application.

[0029] Explanation of the reference numerals: 1-pump member, 11-pump body, 12-connecting member, 2-pressure stabilizing bag, 3-one-way flow structure, 4-sealing ring, 5-pressure block, 6-guide groove. DETAILED DESCRIPTION

[0030] like Figure 1 to Figure 3 As shown, a medical pulse pump of the present application includes a pump element 1 and a pressure-stabilizing capsule 2;

[0031] The pump element 1 is provided with a pump pressure chamber, a liquid inlet channel and a liquid outlet channel; one end of the liquid inlet channel is connected to the pump pressure chamber, and the other end is connected to the outside; one end of the liquid outlet channel is connected to the pump pressure chamber, and the other end is connected to the outside; the flushing liquid flows into the pump pressure chamber unidirectionally along the direction from the liquid inlet channel to the pump pressure chamber, that is, the liquid inlet direction of the flushing liquid is from the liquid inlet channel to the pump pressure chamber; and flows out of the pump pressure chamber unidirectionally along the direction from the pump pressure chamber to the liquid outlet channel, that is, the liquid outlet direction of the flushing liquid is from the pump pressure chamber to the liquid outlet channel;

[0032] The pressure-stabilizing bag 2 is arranged in the outflow direction of the flushing liquid, and a pressure-regulating channel extending to the surface of the pressure-stabilizing bag 2 is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a place of the pressure-stabilizing bag 2 away from the pressure-regulating channel, so that the pressure-stabilizing bag 2 can buffer the pressure when the internal pressure of the pump pressure chamber is greater than a threshold value.

[0033] Specifically, a portion of the pump member 1 away from the liquid outlet channel is connected to a driving member, and the driving member is used to drive the pump member 1 so that the pump member 1 pumps in or out the flushing liquid.

[0034] The function of the liquid inlet channel is that when the pump member 1 is pulled by the external driving member, the external flushing liquid enters the pump pressure chamber through the liquid inlet channel, so the end of the liquid inlet channel connected to the outside can be connected to the container filled with flushing liquid.

[0035] The function of the liquid outlet channel is that when the pump component 1 is compressed under the drive of an external driving component, the flushing liquid in the pump pressure chamber is pumped out to the outside through the liquid outlet channel. For a medical pulse pump, it can be connected to a pulse flushing brush. When the flushing liquid is pumped out, the flushing brush can be brushed by the flushing liquid. Therefore, one end of the liquid outlet channel connected to the outside can be connected to the pulse flushing brush.

[0036] The pressure stabilizing capsule 2 is made of elastic material, for example, it is made of silicone, because the medical pulse pump needs to pump out cleaning fluid frequently, and silicone can maintain its shape and performance under repeated stretching and compression. This property enables the pressure stabilizing capsule 2 to effectively adjust the internal pressure of the pump pressure chamber.

[0037] The setting position of the pressure-stabilizing capsule 2 needs to ensure that it is set in the outlet direction of the flushing liquid. A pressure-regulating channel extending to the surface of the pressure-stabilizing capsule is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a place far away from the pressure-regulating channel. It should be noted that the above-mentioned pressure-regulating channel does not need to actually form a channel. What the above-mentioned pressure-regulating channel wants to express is that the pressure-stabilizing capsule 2 is set in the outlet direction of the flushing liquid, so that the flushing liquid contacts the pressure-stabilizing capsule 2 during the process of being pumped out of the pump pressure chamber. When the pressure of the flushing liquid is greater than the threshold value, the pressure-stabilizing capsule 2 will undergo elastic deformation, thereby balancing the liquid pressure and ultimately ensuring the stability of the pump-out pressure.

[0038] Exemplarily, the pressure-stabilizing bag 2 can be set in the pump pressure chamber; when pumping out the flushing liquid, the pumping pressure should not be greater than 15.5PSI. Through the setting of the pressure-stabilizing bag 2, when the flushing liquid is pumped out, when the pumping pressure is greater than 15.5PSI, the pressure-stabilizing bag 2 discharges part of the gas inside the pressure-stabilizing bag 2 through the ventilation port, buffers part of the internal pressure of the pump pressure chamber, and thereby ensures that the pumping pressure is within 15.5PSI.

[0039] In order to prevent the residual liquid in the liquid outlet channel from flowing back into the pump pressure chamber when the flushing liquid is pumped in, and to prevent part of the flushing liquid from flowing back into the container containing the flushing liquid from the liquid inlet channel when the flushing liquid is pumped out, both the liquid inlet channel and the liquid outlet channel need to ensure that the flushing liquid is unidirectionally circulated. Specifically, the flushing liquid can only enter the pump pressure chamber from the liquid inlet channel and can only be pumped out from the liquid outlet channel. Exemplarily, a one-way valve can be provided at the connection between the liquid inlet channel and the pump pressure chamber, and a one-way valve can be provided at the connection between the liquid outlet channel and the pump pressure chamber.

[0040] By setting the pressure-stabilizing capsule 2, the pressure-stabilizing capsule 2 is set in the outflow direction of the flushing liquid, and a pressure-regulating channel extending to the surface of the pressure-stabilizing capsule 2 is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a place of the pressure-stabilizing capsule 2 away from the pressure-regulating channel, so that the pressure-stabilizing capsule 2 can buffer the pressure when the internal pressure of the pump pressure chamber is greater than a threshold value, thereby ensuring that when the flushing liquid is pumped out, the flow rate of the pumped flushing liquid is stable within a reference flow rate range, thereby ensuring the cleaning effect.

[0041] Furthermore, in order to ensure that the flushing liquid flows out of the pump pressure chamber along the liquid outlet channel in one direction, a medical pulse pump of the present application also includes a one-way flow structure 3, which is arranged at the connecting point between the pump pressure chamber and the liquid outlet channel. The one-way flow structure 3 is in a contracted shape toward the liquid outlet channel and the opening at one end of the one-way flow structure 3 close to the liquid outlet channel opens or closes with the change of air pressure in the pump pressure chamber.

[0042] Specifically, the end of the one-way flow structure 3 close to the liquid outlet channel is a constricted end, that is, the opening area of ​​the one-way flow structure 3 close to the pump pressure chamber is larger than that of the one-way flow structure 3 close to the liquid outlet channel. The one-way flow structure 3 needs to satisfy that when the flushing liquid is pumped in, the flushing liquid remaining on the liquid outlet channel does not enter the pump pressure chamber with the pressure of the pump pressure chamber; and when the flushing liquid is pumped out, the flushing liquid can flow out through the one-way flow structure 3; illustratively, the one-way flow structure 3 in a medical pulse of the present application has the following two embodiments. Example 1

[0043] like Figure 4 As shown, the one-way flow structure 3 includes two elastic petals, which are arranged opposite to each other and whose side surfaces are connected.

[0044] Specifically, the elastic petals can be made of medical-grade silicone, and the two elastic petals are arranged at a certain angle to form a constriction toward the liquid outlet channel, so that the cross-section of the one-way flow structure 3 along its axial direction is similar to a "V" shape, and the sides of the two elastic petals are connected, and the end close to the liquid outlet channel is the constriction end. Since the elastic petals themselves are elastic, when the flushing liquid is pumped in, that is, when the fluid flows into the pump pressure chamber, the constriction end of the one-way flow structure 3 is closed under the action of pressure, thereby preventing the flushing liquid at the liquid outlet channel from flowing back into the pump pressure chamber, and when the flushing liquid is pumped out, the flushing liquid will open the constriction end and enter the liquid outlet channel from the constriction end of the one-way flow structure 3. Example 2

[0045] The one-way flow structure 3 includes a hollow elastic member, which is in the shape of a cone with a diameter gradually decreasing away from the pump pressure chamber, that is, the cross-sectional view of the one-way flow structure 3 along its axial direction is similar to a "V" shape, and at least two petal-shaped pieces are formed at one end of the hollow elastic member away from the pump pressure chamber.

[0046] Specifically, the hollow elastic member can be made of medical-grade silicone. The hollow elastic member is in the shape of a cone whose diameter gradually decreases away from the pump pressure chamber. The end close to the liquid outlet channel is a tip. In order to allow the flushing liquid to enter the liquid outlet channel from the tip, an opening is made at the tip; and in order to enable the flushing liquid to be pumped in, that is, when the fluid flows into the pump pressure chamber, the necking end of the one-way flow structure 3 is closed under the action of pressure, and when the flushing liquid is pumped out, the flushing liquid stretches the necking end and enters the liquid outlet channel from the necking end of the one-way flow structure 3; at least two petal-shaped pieces are formed at the tip. For example, two petal-shaped pieces can be formed. More specifically, the two petal-shaped pieces can be cut along the axial direction of the hollow elastic member from the tip of the hollow elastic member toward the direction close to the pump pressure chamber to form two petal-shaped pieces.

[0047] Since the hollow elastic part is elastic, at least two petal-shaped pieces are formed at the tip, which can achieve the above-mentioned situation that when the flushing liquid is pumped in, that is, when the fluid flows into the pump pressure chamber, the necked end of the one-way flow structure 3 is closed under the action of pressure, and when the flushing liquid is pumped out, the flushing liquid stretches the necked end open and enters the liquid outlet channel from the necked end of the one-way flow structure 3.

[0048] Further, in one embodiment of the present application, the pump member 1 is a split structure, including a pump body 11 and a connecting member 12, and the pump body 11 and the connecting member 12 are connected;

[0049] More specifically, the pump pressure chamber is formed in the pump body 11, and the liquid inlet channel and the liquid outlet channel are both formed on the connecting piece 12; Figure 1 to Figure 3 As shown, a liquid inlet channel and a liquid outlet channel are formed on the connecting member 12 .

[0050] Specifically, if Figure 5As shown, a liquid inlet is provided on the connecting piece 12, and a liquid inlet channel extends axially along the connecting piece 12. The cross-section of the liquid inlet channel along the axial direction of the connecting piece 12 is annular, and one part of the channel is connected to the liquid inlet. Exemplarily, the liquid inlet is arranged perpendicular to the liquid inlet channel.

[0051] The liquid outlet channel is formed in the middle of the connecting member 12, one end of which is connected to the pump pressure chamber, and the other end of which is connected to the outside.

[0052] like Figure 4 As shown, the pressure-stabilizing bag 2 is connected to the connecting piece 12, and at least part of the outer surface of the pressure-stabilizing bag 2 abuts against the connection between the liquid inlet channel and the pump pressure chamber; and the pressure-stabilizing bag 2 is formed with a through hole along the direction from the pump pressure chamber to the liquid outlet channel, and the through hole is connected to the one-way flow structure 3; the flushing liquid enters the one-way flow structure 3 along the through hole.

[0053] In one embodiment of the present application, the pressure-stabilizing capsule 2 and the one-way flow structure 3 may be integrally formed.

[0054] Since at least part of the outer surface of the pressure stabilizing capsule 2 abuts against the connection between the liquid inlet channel and the pump pressure chamber, and since the pressure stabilizing capsule 2 is made of elastic material, when the flushing liquid is pumped in, Figure 6 As shown, the outer surface of the pressure-stabilizing capsule 2 abutting against the connection between the liquid inlet channel and the pump pressure chamber is subjected to the pressure of the liquid, and produces elastic deformation, so that the flushing liquid enters the pump pressure chamber from the liquid inlet channel; and when the flushing liquid is pumped out, the outer surface of the pressure-stabilizing capsule 2 abutting against the connection between the liquid inlet channel and the pump pressure chamber is subjected to the pressure inside the pump pressure chamber, and produces elastic deformation, closing the connection between the liquid inlet channel and the pump pressure chamber, thereby preventing the flushing liquid from flowing back from the liquid inlet channel to the container containing the flushing liquid. The above design can reduce the setting of the one-way valve, and at the same time ensure the one-way flow of the liquid inlet channel while reducing the setting of the one-way valve.

[0055] A ventilation port connected to the outside is provided at a place of the pressure-stabilizing capsule 2 away from the pressure-regulating channel. Specifically, an airflow channel is formed on the connecting piece 12. The airflow channel is arranged between the liquid inlet channel and the liquid outlet channel along the radial direction of the connecting piece 12. The airflow channel extends along the axial direction of the connecting piece 12. The number of the ventilation ports matches the number of ventilation ports on the pressure-stabilizing capsule 2. In one embodiment of the present application, the number of ventilation ports is four, and correspondingly, the number of airflow channels is also four. In addition, the ventilation port is engaged with the airflow channel, so that the pressure-stabilizing capsule 2 is engaged with the connecting piece 12 and is ensured to be connected with the airflow channel.

[0056] Furthermore, the pump body 11 and the connecting piece 12 may be connected by a snap-fit ​​structure.

[0057] Specifically, a snap-fitting portion is formed on one end of the pump body 11 close to the connecting piece 12 , and a buckling portion adapted to the snap-fitting portion is formed at a location corresponding to the snap-fitting portion of the connecting piece 12 . The snap-fitting portion and the buckling portion are snapped together to complete the connection between the pump body 11 and the connecting piece 12 .

[0058] Furthermore, in order to ensure the sealing performance between the pump body 11 and the connecting piece 12 , a medical pulse pump of the present application further includes a sealing ring 4 , which is arranged at the connection between the connecting piece 12 and the pump body 11 .

[0059] Furthermore, in order to facilitate the stretching or compression of the pump body 11 driven by the driving member, the middle portion of the pump body 11 is wavy.

[0060] Specifically, the pump body 11 can be made of medical-grade modified polyethylene material, such as LDPE (low-density polyethylene), to form a wavy structure in the middle of the pump body 11. The wavy structure enables the pump body 11 to be stretched or compressed more conveniently under the drive of the driving member, and ensures the integrity of the pump body 11 structure, ensuring that the pump body 11 is not easily deformed.

[0061] Furthermore, a medical pulse pump of the present application further includes a pressure block 5, which is connected to one end of the pump member 1 close to the pump pressure chamber, and the other end of the pressure block 5 is connected to the driving member.

[0062] Specifically, the connection between the pressure block 5 and the pump member 1 can be a clamping connection or a threaded connection. The specific connection method can be selected according to actual conditions.

[0063] Furthermore, in order to ensure that the pump body 11 maintains the same direction in stretching or compression, and to ensure that the direction of each stretching or compression is consistent, guide grooves 6 extending along the setting direction of the pump pressure chamber are formed on both sides of the pressure block 5.

[0064] The driving member drives the pressing block 5 to reciprocate along the extending direction of the guide groove 6. Driven by the driving member, the pressing block 5 causes the pump member 1 to stretch and compress, thereby pumping in or out the flushing liquid.

[0065] A medical pulse pump of the present application is provided with a pressure-stabilizing capsule 2. The pressure-stabilizing capsule 2 is arranged in the liquid outlet direction of the flushing liquid. A pressure-regulating channel extending to the surface of the pressure-stabilizing capsule 2 is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a place of the pressure-stabilizing capsule 2 away from the pressure-regulating channel, so that the pressure-stabilizing capsule 2 can buffer the pressure when the internal pressure of the pump pressure chamber is greater than a threshold value, thereby ensuring that when the flushing liquid is pumped out, the flow rate of the pumped flushing liquid is stable within a reference flow rate range, thereby ensuring the cleaning effect.

[0066] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application.

[0067] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of this application.

Claims

1. A medical pulse pump, characterized in that: It comprises a pump component (1) and a pressure-stabilizing bag (2); The pump element (1) is provided with a pump pressure chamber, a liquid inlet channel and a liquid outlet channel; one end of the liquid inlet channel is connected to the pump pressure chamber, and the other end is connected to the outside; one end of the liquid outlet channel is connected to the pump pressure chamber, and the other end is connected to the outside; the flushing liquid flows into the pump pressure chamber unidirectionally along the direction from the liquid inlet channel to the pump pressure chamber, and flows out of the pump pressure chamber unidirectionally along the direction from the pump pressure chamber to the liquid outlet channel; The pressure-stabilizing bag (2) is arranged in the outflow direction of the flushing liquid, a pressure-regulating channel extending to the surface of the pressure-regulating bag (2) is formed in the pump pressure chamber, and a ventilation port connected to the outside is opened at a point of the pressure-regulating bag (2) away from the pressure-regulating channel, so that the pressure-stabilizing bag (2) can buffer the pressure when the internal pressure of the pump pressure chamber is greater than a threshold value; The medical pulse pump further comprises a one-way flow structure (3), the one-way flow structure (3) being arranged at the connection point between the pump pressure chamber and the liquid outlet channel, the one-way flow structure (3) being in a constricted shape facing the liquid outlet channel, and an opening at one end of the one-way flow structure (3) close to the liquid outlet channel opens or closes as the air pressure in the pump pressure chamber changes; The pressure stabilizing capsule (2) and the one-way flow structure (3) are integrally formed; The pump component (1) comprises a pump body (11) and a connecting piece (12), wherein the pump body (11) and the connecting piece (12) are connected; the pump pressure chamber is formed in the pump body (11), and the liquid inlet channel and the liquid outlet channel are both formed on the connecting piece (12); The pressure-stabilizing capsule (2) is connected to the connecting piece (12); at least part of the outer surface of the pressure-stabilizing capsule (2) abuts against the connection between the liquid inlet channel and the pump pressure chamber; and the pressure-stabilizing capsule (2) is formed with a through hole along the direction from the pump pressure chamber to the liquid outlet channel, and the through hole is connected to the one-way flow structure (3); the flushing liquid enters the one-way flow structure (3) along the through hole.

2. The medical pulse pump according to claim 1, characterized in that: The one-way flow structure (3) comprises two elastic petals, the two elastic petals are arranged opposite to each other, and the side surfaces of the two elastic petals are connected.

3. The medical pulse pump according to claim 1, characterized in that: The one-way flow structure (3) comprises a hollow elastic member, the hollow elastic member is in the shape of a cone whose diameter gradually decreases away from the pump pressure chamber, and at least two petal-shaped pieces are formed at one end of the hollow elastic member away from the pump pressure chamber.

4. The medical pulse pump according to claim 1, characterized in that: The pump body (11) and the connecting piece (12) are snap-connected.

5. The medical pulse pump according to claim 1, characterized in that: It also comprises a sealing ring (4), wherein the sealing ring (4) is arranged at the connection between the connecting piece (12) and the pump body (11).

6. The medical pulse pump according to claim 1, characterized in that: The middle part of the pump body (11) is wave-shaped.

7. The medical pulse pump according to claim 1, characterized in that: It also comprises a pressure block (5), wherein the pressure block (5) is connected to one end of the pump component (1) close to the pump pressure chamber.

8. The medical pulse pump according to claim 7, characterized in that: Guide grooves (6) extending along the setting direction of the pump pressure chamber are formed on both sides of the pressure block (5).

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