Blood storage tank structure

Abstract

The embodiment of the utility model relates to a blood storage tank structure which comprises a blood storage tank, a floating piece, a liquid outflow limiting and controlling structure and a pushing piece. The blood storage tank is provided with an inflow port allowing liquid to enter and an outflow port allowing the liquid to flow out. The liquid outflow limiting and controlling structure is arranged at the outflow opening and provided with a liquid channel communicated with the inner cavity of the blood storage tank and the outside. The floating part is arranged on the liquid outflow limiting and controlling structure in a sliding and sleeving mode, and the floating part can move in the height direction of the liquid outflow limiting and controlling structure under the buoyancy effect of liquid in the blood storage tank so as to close the liquid channel or open at least part of the liquid channel. Therefore, potential safety hazards caused by air entering an artery pipeline due to insufficient liquid in the blood storage tank are avoided. As the on-off of the liquid channel can be automatically controlled through the floating ring in the whole process, the labor cost can be greatly reduced.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of blood storage, and in particular to a blood storage tank structure. Background Art

[0002] Extracorporeal circulation uses a series of special artificial devices to drain the returning venous blood to the outside of the body, such as into a blood storage tank structure, and then pump it back into the artery after oxygenation and removal of carbon dioxide to maintain the body's normal physiological functions. In this process, due to various reasons, the blood in the blood storage tank structure may be insufficient, which may easily lead to air entering the arterial pipeline. If it is not discovered in time, it will cause air embolism, endangering the safety of the patient, and in severe cases, leading to the death of the patient.

[0003] For this reason, an extracorporeal circulation technician is usually required to pay close attention to the blood level in the blood storage tank structure, which results in high labor costs. Utility Model Content

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, an embodiment of the utility model provides a blood storage tank structure.

[0005] The embodiment of the utility model provides a blood storage tank structure, including a blood storage tank, a floating member, a liquid outflow limiting control structure and a pushing member;

[0006] The blood storage tank has an inlet for liquid to enter and an outlet for liquid to flow out; the liquid outflow limiting control structure is arranged at the outlet, and the liquid outflow limiting control structure has a liquid channel respectively connected with the inner cavity and the outside of the blood storage tank;

[0007] The floating member is slidably mounted on the liquid outflow limiting control structure, and the floating member can move along the height direction of the liquid outflow limiting control structure under the buoyancy of the liquid in the blood storage tank to close the liquid channel or open at least part of the liquid channel;

[0008] A evacuation hole is provided on the blood storage tank at a position corresponding to the floating member, and a portion of the pushing member can extend into the blood storage tank through the evacuation hole and come into detachable contact with the floating member.

[0009] In some embodiments, the liquid outflow limiting control structure includes a liquid outflow tube and a limiting portion disposed on the liquid outflow tube;

[0010] The limiting portion can cooperate with the floating member to limit the floating member from moving from the bottom of the liquid outflow limiting control structure to the top of the liquid outflow limiting control structure.

[0011] In some embodiments, the limiting portion is disposed on the top of the liquid outflow pipe;

[0012] And / or, the liquid outflow pipe and the limiting portion are integrally formed.

[0013] In some embodiments, the liquid outflow pipe includes a first pipe section and a second pipe section connected to the bottom of the first pipe section, and the second pipe section is arranged at the outflow port and sealed with the outflow port;

[0014] The limiting portion is arranged on the first pipe section, and the liquid channel is arranged on the second pipe section.

[0015] In some embodiments, one end of the liquid channel communicating with the inner cavity of the blood storage tank is disposed close to the first tube segment.

[0016] In some embodiments, the first tube segment is a solid structure, and in the direction from the top of the liquid outflow limiting control structure to the bottom of the liquid outflow limiting control structure, the bottom surface of the first tube segment is a liquid-conducting arc surface or a liquid-conducting inclined surface extending in the direction close to the outlet.

[0017] In some embodiments, the limiting portion includes a limiting ring disposed on the outer wall of the liquid outflow tube;

[0018] And / or, the floating member includes a floating ring sleeved on the outer wall of the liquid outflow limiting control structure.

[0019] In some embodiments, the pushing member includes a pushing cylinder and a pushing rod slidably disposed in the pushing cylinder, the pushing cylinder is fixed outside the blood storage tank, and the pushing rod can extend into the blood storage tank through the avoidance hole and be in detachable contact with the floating member.

[0020] In some embodiments, a filter is disposed in the blood storage tank, the filter has a filter inlet connected to the inlet, and the filter is provided with a filter outlet connected to the inner cavity of the blood storage tank.

[0021] In some embodiments, the blood storage tank includes a first tank body and a second tank body connected and communicated with the first tank body, the second tank body is located below the first tank body; the outflow port is arranged on the second tank body, and the inflow port is arranged on the first tank body;

[0022] In a direction from the top of the liquid outflow limiting and controlling structure to the bottom of the liquid outflow limiting and controlling structure, the inner diameter of the second tank body gradually decreases.

[0023] Compared with the prior art, the technical solution provided by the embodiment of the utility model has the following advantages:

[0024] An embodiment of the utility model provides a blood storage tank structure, including a blood storage tank, a floating member, a liquid outflow limiting control structure and a pushing member. The blood storage tank has an inlet for liquid to enter and an outlet for liquid to flow out. The liquid outflow limiting control structure is arranged at the outlet, and the liquid outflow limiting control structure has a liquid channel connected to the inner cavity and the outside of the blood storage tank respectively. The floating member is slidably sleeved on the liquid outflow limiting control structure, and the floating member can move along the height direction of the liquid outflow limiting control structure under the buoyancy of the liquid in the blood storage tank to close the liquid channel or open at least part of the liquid channel. An avoidance hole is arranged at a position corresponding to the floating member on the blood storage tank, and part of the pushing member can extend into the blood storage tank through the avoidance hole and make detachable contact with the floating member. That is to say, the blood storage tank structure provided by the embodiment of the utility model has liquid channels connected to the blood storage tank and the outside respectively on the liquid outflow limiting control structure, and a floating member is slidably sleeved on the outer wall of the liquid outflow limiting control structure, so that the floating member can automatically rise and fall under the buoyancy of the liquid in the blood storage tank to close or open part of the liquid channel, thereby avoiding the safety hazard of air entering the arterial pipeline due to insufficient liquid in the blood storage tank. And because the entire process can automatically control the opening and closing of the liquid channel through the floating ring, the labor cost can be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the embodiments of the utility model, and together with the description, are used to explain the principles of the embodiments of the utility model.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 This is a schematic structural diagram of the blood storage tank structure according to an embodiment of the utility model;

[0028] Figure 2 for Figure 1 A local enlarged schematic diagram at point A;

[0029] Figure 3 This is a schematic diagram of the blood storage tank structure in the first working state according to an embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the blood storage tank structure in the second working state according to the embodiment of the utility model;

[0031] Figure 5It is a schematic diagram of the blood storage tank structure in the third working state according to the embodiment of the utility model;

[0032] Figure 6 It is a schematic diagram of the blood storage tank structure in the fourth working state according to the embodiment of the utility model;

[0033] Figure 7 It is a schematic diagram of the blood storage tank structure in the fifth working state according to the embodiment of the utility model;

[0034] Figure 8 It is a schematic diagram of the blood storage tank structure in the sixth working state according to the embodiment of the utility model.

[0035] Among them, 1. blood storage tank; 11. inlet; 12. outlet; 13. first tank body; 14. second tank body; 2. floating part; 3. liquid outflow limiting control structure; 31. liquid channel; 32. liquid outflow tube; 321. first pipe section; 322. second pipe section; 33. limiting part; 4. pushing part; 41. pushing cylinder; 42. pushing rod; 5. filter; 6. liquid. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the scheme of the embodiments of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the utility model, but the embodiments of the utility model can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the utility model, rather than all of the embodiments.

[0038] Reference Figures 1 to 8 As shown, this embodiment provides a blood storage tank structure, including a blood storage tank 1, a floating member 2, a liquid outflow limiting control structure 3 and a pushing member 4.

[0039] The blood storage tank 1 has an inlet 11 for liquid 6 to enter and an outlet 12 for liquid 6 to flow out. The liquid outflow limiting control structure 3 is arranged at the outlet 12 and has a liquid channel 31 connected to the inner cavity and the outside of the blood storage tank 1 respectively.

[0040] The floating member 2 is slidably mounted on the liquid outflow limiting control structure 3, and the floating member 2 can move along the height direction of the liquid outflow limiting control structure 3 under the buoyancy of the liquid 6 in the blood storage tank 1 to close the liquid channel 31 or open at least part of the liquid channel 31.

[0041] An escape hole is provided on the blood storage tank 1 at a position corresponding to the floating member 2 , and a portion of the pushing member 4 can extend into the blood storage tank 1 through the escape hole and come into detachable contact with the floating member 2 .

[0042] When implementing it, refer to Figure 1 and Figure 2 As shown, the blood storage tank 1 can be configured to have an inner cavity, in which case an inlet 11 for allowing liquid 6 to enter the inner cavity can be provided at the top of the blood storage tank 1, and an outlet 12 for allowing liquid 6 to be discharged can be provided at the bottom of the blood storage tank 1. Exemplarily, the liquid 6 can be, for example, blood.

[0043] Specifically, a liquid outflow limiting control structure 3 can be inserted at the outflow port 12, so that the outflow port 12 can be blocked by the liquid outflow limiting control structure 3. At this time, a liquid channel 31 is set on the liquid outflow limiting control structure 3. Therefore, when the liquid channel 31 is opened, the liquid 6 in the inner cavity of the blood storage tank 1 can flow out through the liquid channel 31 to circulate to the human artery. Further, the floating member 2 is slidably sleeved on the liquid outflow limiting control structure 3, so that it can be lifted and lowered under the action of different buoyancy caused by different liquid levels of the liquid in the blood storage tank 1, and then the liquid channel 31 can be closed or at least part of the liquid channel 31 can be opened to control the outflow of the liquid 6 according to the different liquid levels, so as to prevent air from entering and affecting the subsequent extracorporeal circulation operation.

[0044] For example, refer to Figure 3 As shown, in the initial state, that is, when the blood storage tank structure is in the first working state, no liquid is injected into the blood storage tank 1, and the floating member 2 moves to the lowest end under the action of gravity and completely closes the liquid channel 31. At this time, the blood storage tank structure cannot discharge the liquid 6, and the pushing member 4 and the floating member 2 are not in contact and cooperation.

[0045] Further, refer to Figure 4 As shown, when sufficient liquid 6 is injected into the inner cavity of the blood storage tank 1 through the inlet 11, that is, the blood storage tank structure is in the second working state, it can be considered that the liquid level in the blood storage tank 1 is at a normal liquid level position. At this time, the floating member 2 can move to the highest end under the buoyancy of the liquid 6. At this time, the liquid channel 31 can be fully opened. At this time, the liquid 6 in the blood storage tank 1 can flow out normally through the liquid channel 31. At this time, the pushing member 4 and the floating member 2 are not in contact.

[0046] Further, refer to Figure 5As shown, when the liquid level in the blood storage tank 1 drops, that is, the blood storage tank structure is in the third working state, the floating member 2 will float downward along the liquid outflow limiting control structure 3 to a partially closed liquid channel 31. At this time, the liquid channel 31 is not completely closed, so the liquid in the blood storage tank 1 can still flow out through the liquid channel 31. At this time, the pushing member 4 is not in contact with the floating member 2.

[0047] Further, refer to Figure 6 As shown, when the extracorporeal circulation is in an abnormal working state, that is, when the blood storage tank structure is in the fourth working state, the liquid level of the liquid 6 in the blood storage tank 1 further drops, causing the floating member 2 to slide further downward to further close the liquid channel 31. At this time, the open area of ​​the liquid channel 31 is smaller, so the amount of liquid 6 flowing out through the liquid channel 31 gradually decreases, resulting in insufficient perfusion. At this time, the pushing member 4 and the floating member 2 are not in contact and cooperate.

[0048] Further, refer to Figure 7 As shown, when the extracorporeal circulation is in an abnormal working state, that is, when the blood storage tank structure is in the fifth working state, the liquid level of the liquid 6 in the blood storage tank 1 further drops, and at this time the floating member 2 further slides downward and completely closes the liquid channel 31. At this time, the liquid 6 cannot flow out through the liquid channel 31, and at this time the pushing member 4 and the floating member 2 are not in contact and cooperate.

[0049] Finally, refer to Figure 8 As shown, when the extracorporeal circulation operation is completed, the pusher 4 can be pushed upwards and made to contact and cooperate with the floating member 2, thereby driving the floating member 2 to move upwards to open the liquid channel 31 and ensure that the liquid 6 in the blood storage tank 1 can be emptied normally.

[0050] The blood storage tank structure provided in this embodiment is provided with a liquid channel 31 respectively connected with the blood storage tank 1 and the outside on the liquid outflow limiting control structure 3, and a floating member 2 is slidably sleeved on the outer wall of the liquid outflow limiting control structure 3, so that the floating member 2 can automatically rise and fall under the buoyancy of the liquid in the blood storage tank 1 to close or open part of the liquid channel 31, thereby avoiding the safety hazard caused by insufficient liquid in the blood storage tank 1 and causing air to enter the arterial pipeline. And because the entire process can automatically control the opening and closing of the liquid channel 31 through the floating ring, the labor cost can be greatly reduced.

[0051] Reference Figure 1 and Figure 2 As shown, in some embodiments, the liquid outflow limiting structure 3 includes a liquid outflow tube 32 and a limiting portion 33 disposed on the liquid outflow tube 32 .

[0052] The limiting portion 33 can cooperate with the floating member 2 to limit the floating member 2 from moving from the bottom of the liquid outflow limiting control structure 3 to the top of the liquid outflow limiting control structure 3 .

[0053] That is to say, when the floating member 2 moves to the preset position, in order to prevent the floating member 2 from being separated from the liquid outflow tube 32, a limiting portion 33 can be provided on the liquid outflow tube 32 to resist the floating member 2.

[0054] In some embodiments, the limiting portion 33 is disposed at the top of the liquid outflow tube 32 , so as to prevent the floating member 2 from sliding off the liquid outflow tube 32 when the floating member 2 moves to the highest end.

[0055] Exemplarily, the liquid outflow tube 32 and the limiting portion 33 are integrally formed, thereby saving manufacturing steps and improving the structural strength of the entire liquid outflow limiting control structure 3 .

[0056] Reference Figure 1 and Figure 2 As shown, in some embodiments, the liquid outflow pipe 32 includes a first pipe segment 321 and a second pipe segment 322 connected to the bottom of the first pipe segment 321 , and the second pipe segment 322 is disposed at the outflow port 12 and sealed with the outflow port 12 .

[0057] The limiting portion 33 is disposed on the first pipe section 321 , and the second pipe section 322 is a hollow structure, so that a liquid channel 31 can be formed, so as to facilitate the discharge operation of the liquid through the liquid channel 31 .

[0058] Reference Figure 2 As shown, in some embodiments, the end of the liquid channel 31 connected to the inner cavity of the blood storage tank 1 is arranged close to the first tube segment 321, that is, it can be arranged on the side wall of the first tube segment 321 and close to the top of the first tube segment 321 to ensure that the opening of the end of the liquid channel 31 connected to the inner cavity can have a larger height dimension.

[0059] Reference Figure 1 and Figure 2 As shown, in some embodiments, the first tube segment 321 is a solid structure, and in the direction from the top of the liquid outflow limiting control structure 3 to the bottom of the liquid outflow limiting control structure 3, the bottom surface of the first tube segment 321 is a downwardly extending liquid-conducting arc surface or a liquid-conducting slope, so that the liquid-conducting arc surface or the liquid-conducting slope can be used to guide the liquid during the liquid outflow process, and the damage to the blood caused by vortices generated when the blood flows can be reduced.

[0060] Reference Figure 1 and Figure 2As shown, in some embodiments, the limiting portion 33 includes a limiting ring disposed on the outer wall of the liquid outflow tube 32, or may also be a limiting protrusion or a limiting plate.

[0061] In some embodiments, the floating member 2 includes a floating ring sleeved on the outer wall of the liquid outflow limiting control structure 3, or may also be a floating block.

[0062] For example, in order to ensure that the floating ring can be lifted and lowered reliably, the floating ring can be made of rubber or plastic.

[0063] Reference Figure 2 As shown, in some embodiments, the push member 4 includes a push cylinder 41 and a push rod 42 slidably disposed in the push cylinder 41. The push cylinder 41 is fixed outside the blood storage tank 1. The push rod 42 can extend into the blood storage tank 1 through the avoidance hole and detachably contact with the floating member 2. The detachable contact here refers to the push rod 42 in a normal situation (during extracorporeal circulation, refer to Figures 3 to 7 When the extracorporeal circulation is completed, the push rod 42 can be moved upward and contacted with the floating member 2 to drive the floating member 2 to move upward to open the liquid channel 31, thereby facilitating the normal emptying of the liquid in the blood storage tank 1.

[0064] Reference Figure 1 As shown, in some embodiments, a filter 5 is provided in the blood storage tank 1, and the filter 5 has a filter inlet connected to the inlet 11, and a filter outlet connected to the inner cavity of the blood storage tank 1 is provided on the filter 5, so that the liquid can be filtered to ensure subsequent use.

[0065] Reference Figure 1 As shown, in some embodiments, the blood storage tank 1 includes a first tank body 13 and a second tank body 14 connected and communicated with the first tank body 13, and the second tank body 14 is located below the first tank body 13. The outflow port 12 is arranged on the second tank body 14, and the inflow port 11 is arranged on the first tank body 13.

[0066] In the direction from the top of the liquid outflow limiting control structure 3 to the bottom of the liquid outflow limiting control structure 3, the inner diameter of the second tank body 14 gradually decreases, that is, the second tank body 14 can be set to a funnel-shaped structure with a wider top and a narrower bottom to facilitate smooth discharge of liquid.

[0067] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] The above description is only a specific implementation of the embodiment of the utility model, so that those skilled in the art can understand or implement the embodiment of the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the embodiment of the utility model. Therefore, the embodiment of the utility model will not be limited to these embodiments described herein, but will conform to the widest range consistent with the principles and novel features of the embodiment of the utility model described herein.

Claims

1. A blood storage tank structure, characterized in that: It comprises a blood storage tank (1), a floating member (2), a liquid outflow limiting control structure (3) and a pushing member (4); The blood storage tank (1) has an inlet (11) for liquid (6) to enter, and an outlet (12) connected to the inlet (11); the liquid outflow limiting control structure (3) is arranged at the outlet (12), and the liquid outflow limiting control structure (3) has a liquid channel (31) connected to the inner cavity and the outside of the blood storage tank (1) respectively; the floating member (2) is slidably mounted on the liquid outflow limiting control structure (3), and the floating member (2) can move along the height direction of the liquid outflow limiting control structure (3) under the buoyancy of the liquid (6) in the blood storage tank (1) to close the liquid channel (31) or open at least part of the liquid channel (31); A evacuation hole is provided on the blood storage tank (1) at a position corresponding to the floating member (2), and a portion of the pushing member (4) can extend into the blood storage tank (1) through the evacuation hole and come into detachable contact with the floating member (2).

2. The blood storage tank structure according to claim 1, characterized in that: The liquid outflow limiting and controlling structure (3) comprises a liquid outflow pipe (32) and a limiting portion (33) arranged on the liquid outflow pipe (32); The limiting portion (33) can cooperate with the floating member (2) to limit the movement of the floating member (2) from the bottom of the liquid outflow limiting control structure (3) to the top of the liquid outflow limiting control structure (3).

3. The blood storage tank structure according to claim 2, characterized in that: The limiting portion (33) is arranged on the top of the liquid outflow pipe (32); And / or, the liquid outflow pipe (32) and the limiting portion (33) are integrally formed.

4. The blood storage tank structure according to claim 2, characterized in that: The liquid outflow pipe (32) comprises a first pipe section (321) and a second pipe section (322) connected to the bottom of the first pipe section (321); the second pipe section (322) is arranged at the outflow port (12) and is sealed with the outflow port (12); The limiting portion (33) is arranged on the first pipe section (321), and the liquid channel (31) is arranged on the second pipe section (322).

5. The blood storage tank structure according to claim 4, characterized in that: The first tube section (321) is a solid structure, and in the direction from the top of the liquid outflow limiting control structure (3) to the bottom of the liquid outflow limiting control structure (3), the bottom surface of the first tube section (321) is a liquid-conducting arc surface or a liquid-conducting inclined surface extending downward.

6. The blood storage tank structure according to any one of claims 2 to 5, characterized in that: The limiting portion (33) comprises a limiting ring arranged on the outer wall of the liquid outflow pipe (32).

7. The blood storage tank structure according to any one of claims 1 to 5, characterized in that: The floating member (2) comprises a floating ring sleeved on the outer wall of the liquid outflow limiting control structure (3).

8. The blood storage tank structure according to any one of claims 1 to 5, characterized in that: The pushing member (4) comprises a pushing cylinder (41) and a pushing rod (42) slidably arranged in the pushing cylinder (41); the pushing cylinder (41) is fixed outside the blood storage tank (1); the pushing rod (42) can extend into the blood storage tank (1) through the avoidance hole and can be detachably contacted with the floating member (2).

9. The blood storage tank structure according to any one of claims 1 to 5, characterized in that: A filter (5) is arranged in the blood storage tank (1), wherein the filter (5) has a filter inlet communicating with the inlet (11), and the filter (5) has a filter outlet communicating with the inner cavity of the blood storage tank (1).

10. The blood storage tank structure according to claim 9, characterized in that: The blood storage tank (1) comprises a first tank body (13) and a second tank body (14) connected to and in communication with the first tank body (13), wherein the second tank body (14) is located below the first tank body (13); the outflow port (12) is arranged on the second tank body (14), and the inflow port (11) is arranged on the first tank body (13); In the direction from the top of the liquid outflow limiting control structure (3) to the bottom of the liquid outflow limiting control structure (3), the inner diameter of the second tank body (14) gradually decreases.

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