Negative pressure drainage device

Abstract

The utility model relates to a negative pressure drainage apparatus, and relates to the technical field of medical instruments, the negative pressure drainage apparatus comprises a tank body and a tank cover, the tank body is provided with a cavity used for storing body fluid, the tank cover is provided with a fluid outlet used for discharging the body fluid, and the tank body is provided with a drainage bag in the cavity. The open end of the drainage bag is connected with the side, close to the tank cover, of the tank body, a liquid discharging device is arranged at the end, away from the tank cover, of the drainage bag and comprises a first liquid discharging piece and a second liquid discharging piece, and the first liquid discharging piece and the second liquid discharging piece are connected end to end and arranged around the drainage bag. The drainage device has the effect of reducing drainage liquid residues.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and specifically to a negative pressure drain. Background Art

[0002] After surgery, the wound in the patient's body cannot stop bleeding immediately, and body fluids will continue to flow out for a period of time. In the case of large amounts of bleeding and body fluids, the flowing body fluids need to be discharged from the body in a timely manner to avoid excessive body fluids accumulating in the body to compress the wound or cause infection in the patient. Currently, the commonly used drainage method is negative pressure drainage. During drainage, one end of the drainage tube needs to be inserted into the patient's body, and the other end is connected to the drainage bottle. At the same time, the drainage bottle is also connected to an external negative pressure device. The negative pressure device creates a negative pressure in the drainage bottle, prompting the body fluids in the body to flow from the drainage tube to the drainage bottle, so that blood does not accumulate in the body in large quantities.

[0003] The Chinese patent application number CN202022094774.9 discloses a negative pressure drainage device, including a drainage can, a drainage tube arranged on the top of the drainage can, and a drainage port opened on the top of the drainage can. The drainage can has a cavity for storing drainage fluid, and the drainage tube and the drainage port are both connected to the cavity.

[0004] When the staff pours the body fluid out of the negative pressure drain, they need to clamp the drainage tube with a clamp, then open the drainage port and tilt the negative pressure drain so that the body fluid in the cavity slowly flows out under the action of gravity. When pouring the body fluid, there is a lot of drainage fluid left on the inner wall of the cavity, resulting in inaccurate recording of the amount of drainage fluid poured out. Utility Model Content

[0005] In order to reduce drainage fluid residue, the present application provides a negative pressure drainer.

[0006] The negative pressure drainage device provided in this application adopts the following technical solution:

[0007] A negative pressure drain comprises a tank body and a tank cover, wherein the tank body is provided with a cavity for storing body fluids, and the tank cover is provided with a drainage port for draining body fluids, and the tank body is provided with a drainage bag in the cavity, wherein the open end of the drainage bag is connected to a side of the tank body close to the tank cover, and the end of the drainage bag away from the tank cover is provided with a drainer, wherein the drainer comprises a first drainage sheet and a second drainage sheet, wherein the first drainage sheet and the second drainage sheet are connected end to end and are arranged around the drainage bag.

[0008] When pouring drainage fluid from a traditional negative pressure drainage device, a lot of residue is easily generated on the inner wall of the tank, which leads to inaccurate recording of the amount of drainage fluid by the staff. The negative pressure drainage device provided by the present application includes a tank body and a tank cover, the tank body has a cavity for storing drainage fluid, a drainage bag is arranged in the cavity of the tank body, and a drainer is arranged at one end of the drainage bag away from the tank cover, the drainer includes a first drainage sheet and a second drainage sheet, the first drainage sheet and the second drainage sheet are connected end to end and arranged around the drainage bag. When draining, first open the drainage port, pour out the drainage fluid in the drainage bag initially, tighten the first drainage sheet and the second drainage sheet, so that the first drainage sheet and the second drainage sheet fit together, and then rotate the first drainage sheet and the second drainage sheet to gradually squeeze out the drainage fluid remaining on the inner wall of the drainage bag, thereby reducing the residue of drainage fluid on the inner wall of the drainage bag.

[0009] Optionally, locking members for locking the first drainage member and the second drainage member are provided between both ends of the first drainage member, the locking members include a locking member connected to the first drainage member and a mating member rotatably connected to the locking member, a snap-fitting piece is provided at one end of the mating member away from the locking member, the snap-fitting piece is provided with a snap-in slot, a clamping block is provided on the side of the locking member away from the first drainage member, the clamping block passes through the snap-in slot and is snap-fitted to the clamping piece.

[0010] Optionally, two opposite sides of the tank body are provided with penetration grooves for the first liquid drainage sheet and the second liquid drainage sheet to penetrate.

[0011] Optionally, a fixing member for fixing the first drainage sheet and the second drainage sheet is provided at one end of the tank body away from the tank cover.

[0012] Optionally, the fixing part includes a fixing block arranged on the periphery of the tank body and a fixing column arranged on the fixing block, the fixing column and the fixing block are slidably arranged, the first drainage sheet and the second drainage sheet are both provided with a fixing groove, the fixing column includes a fixing ball and a connecting part connecting the fixing ball and the fixing block, the opening diameter of the fixing groove is consistent with the diameter of the connecting part, the diameter of the fixing ball is larger than the diameter of the connecting part, the connecting part passes through the fixing groove, and the fixing ball is clamped with the first drainage sheet or the second drainage sheet.

[0013] By clamping the fixing ball and the first drainage sheet and the second drainage sheet, when the negative pressure drainage device is in use, the first drainage sheet and the second drainage sheet always remain in contact with the inner wall of the tank body, thereby increasing the volume that the drainage bag can accommodate and making the installation of the drainage bag in the tank body more stable.

[0014] Optionally, the fixing block is provided with a mounting groove for the fixing column to slide up and down, and an elastic member is provided in the mounting groove so that the connecting part always passes through the fixing groove, one end of the elastic member abuts against the side wall of the mounting groove, and the end of the elastic member away from the side wall of the mounting groove abuts against the connecting part.

[0015] Optionally, the fixing member also includes an unlocking piece slidably arranged with the fixing block, and the fixing member is provided with a sliding groove for the unlocking piece to slide up and down, one side of the unlocking piece abuts against the side of the elastic member away from the connecting part, and the side of the unlocking piece away from the elastic member abuts against the connecting part.

[0016] Optionally, an exhaust hole is provided at one end of the drainage bag away from the tank cover, and an air blocking plug is provided at the exhaust hole of the drainage bag.

[0017] When pouring out the drainage fluid, first remove the air plug and open the vent hole to connect the drainage bag with the outside world, thereby initially reducing the residual drainage fluid in the drainage bag.

[0018] Optionally, a section of the tank body away from the tank cover is provided with a bottom cover, and the bottom cover is threadedly connected to the tank body.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. When draining, first open the drainage port, pour out the drainage liquid in the drainage bag, tighten the first drainage sheet and the second drainage sheet to make the first drainage sheet fit the second drainage sheet, then rotate the first drainage sheet and the second drainage sheet to gradually squeeze out the drainage liquid remaining on the inner wall of the drainage bag, thereby reducing the drainage liquid remaining on the inner wall of the drainage bag;

[0021] 2. By clamping the fixing ball and the first and second drainage sheets, the first and second drainage sheets are always kept in contact with the inner wall of the tank body when the negative pressure drainage device is in use, thereby increasing the volume that the drainage bag can accommodate and making the drainage bag more stably installed in the tank body.

[0022] 3. When pouring out the drainage fluid, first remove the air plug and open the vent hole to connect the drainage bag with the outside world, and initially reduce the residual drainage fluid in the drainage bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0025] Figure 2 This is an exploded schematic diagram of this embodiment;

[0026] Figure 3 Schematic diagram of the structure of the drainer of this embodiment;

[0027] Figure 4 An exploded schematic diagram of the locking member of this embodiment

[0028] Figure 5 A cross-sectional view of the fixing member of this embodiment

[0029] Figure 6 FIG. 4 is an exploded schematic diagram of the bottom cover of this embodiment.

[0030] Explanation of the reference numerals: 1. tank body; 11. through groove; 12. through hole; 13. threaded hole; 2. tank cover; 21. discharge port; 3. cavity; 4. drainage bag; 41. exhaust hole; 42. air plug; 5. drainer; 51. first drainage sheet; 52. second drainage sheet; 53. fixing groove; 6. locking member; 61. locking sheet; 62. matching sheet; 63. snap-on sheet; 64. snap block; 65. snap-on; 7. fixing member; 71. fixing block; 72. fixing column; 721. connecting part; 722. fixing ball; 73. mounting groove; 74. through hole; 75. elastic member; 76. unlocking sheet; 77. sliding groove; 8. bottom cover. DETAILED DESCRIPTION

[0031] The present application provides a negative pressure drainage device, which is used to solve the technical problem of a large amount of drainage fluid remaining in the drainage tank of the negative pressure drainage device in the prior art.

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices.

[0034] The present application embodiment discloses a negative pressure drainage device. Figure 1 and Figure 2 The negative pressure drainage device comprises a tank body 1 and a tank cover 2; the tank body 1 is provided with a cavity 3 for storing drainage fluid, a drainage bag 4 is arranged in the tank body 1 in the cavity 3, and the tank cover 2 is provided with a drainage port 21 for draining the drainage fluid. The open end of the drainage bag 4 is connected to the tank cover 2 and the tank body 1 by heat welding. A drain 5 is arranged at one end of the drainage bag 4 away from the tank cover 2.

[0035] Reference Figure 2 and Figure 3 The drainer 5 includes a first drainage sheet 51 and a second drainage sheet 52, which are connected end to end and surround the drainage bag 4. In this embodiment, both ends of the first drainage sheet 51 and the second drainage sheet 52 are connected by welding, and the first drainage sheet 51 and the second drainage sheet 52 are glued to the drainage bag 4. The first drainage sheet 51 and the second drainage sheet 52 are both made of a material with a certain deformation ability.

[0036] The tank body 1 is provided with a penetration groove 11 for the first drainage sheet 51 and the second drainage sheet 52 to penetrate, and the penetration grooves 11 are penetrated at both ends of the first drainage sheet 51 and the second drainage sheet 52. When draining the drainage fluid in the drainage bag 4, the discharge port 21 is first opened to initially drain the drainage fluid in the drainage bag 4, and then the first drainage sheet 51 and the second drainage sheet 52 are closed so that the first drainage sheet 51 and the second drainage sheet 52 clamp the drainage bag 4, and then the first drainage sheet 51 and the second drainage sheet 52 are rotated to squeeze out the drainage fluid remaining on the inner wall of the drainage bag 4, thereby reducing the drainage fluid remaining on the inner wall of the drainage bag 4.

[0037] Reference Figure 4, both ends of the first liquid-draining sheet 51 are provided with locking members 6, the locking members 6 include a locking piece 61 provided on the side of the first liquid-draining sheet 51 away from the second liquid-draining sheet 52 and a matching piece 62 rotatably connected to the locking piece 61, a clamping piece 63 is provided on the end of the matching piece 62 away from the locking piece 61, the clamping piece 63 is rotatably connected to the matching piece 62, a clamping block 64 is provided on the side of the locking piece 61 away from the first liquid-draining sheet 51, and the clamping piece 63 is provided with a clamping slot 65 for clamping the clamping block 64. In this embodiment, the locking piece 61 and the first liquid-draining sheet 51, the locking piece 61 and the matching piece 62, and the matching piece 62 and the clamping piece 63 are all connected by welding. And the locking piece 61, the matching piece 62, and the clamping piece 63 are all made of materials with a certain deformation ability.

[0038] Reference Figure 4 and 5 , a fixing member 7 is arranged on the periphery of the tank body 1. The fixing member 7 includes a fixing block 71 arranged on the periphery of the tank body 1 and a fixing column 72 arranged on the fixing block 71 and slidingly arranged with the fixing block 71. In the embodiment of the present application, two fixing members 7 are symmetrically arranged around the periphery of the tank body 1. The first drainage sheet 51 and the second drainage sheet 52 are both provided with a fixing groove 53, and the two fixing columns 72 are respectively penetrated through the fixing groove 53 and are clamped with the first drainage sheet 51 and the second drainage sheet 52.

[0039] The fixing column 72 includes a connecting portion 721 slidably arranged with the fixing block 71 and a fixing ball 722 integrally formed with the connecting portion 721. The fixing block 71 is provided with a mounting groove 73 for the fixing column 72 to slide. The fixing block 71 is provided with a through hole 74 for the connecting portion 721 to pass through on one side close to the tank body 1. The tank body 1 is provided with a through hole 12 for the connecting portion 721 to pass through. The through hole 74 is connected to the through hole 12. The connecting portion 721 passes through the fixing groove 53, and the fixing ball 722 is clamped with the first drainage sheet 51 or the second drainage sheet 52.

[0040] The fixing block 71 is located in the installation groove 73 and is provided with an elastic member 75 that allows the connection part 721 to always keep penetrating the fixing groove 53. The fixing block 71 is located in the installation groove 73 and is also provided with an unlocking piece 76 for unlocking the connection part 721 from the penetrating state of the fixing groove 53. The fixing member 7 is provided with a sliding groove 77 for the unlocking piece 76 to slide up and down. One end of the unlocking piece 76 abuts against one end of the connection part 721 away from the fixed ball 722, and one end of the unlocking piece 76 away from the connection part 721 is convexly arranged outside the fixing block 71. One end of the elastic member 75 abuts against the side wall of the installation groove 73, and one end of the elastic member 75 away from the installation groove 73 abuts against one side of the unlocking piece 76 away from the connection part 721. In this embodiment, the elastic member 75 adopts a compression spring.

[0041] When draining, the unlocking piece 76 is slid to release the rebound force of the elastic member 75 on the connecting portion 721, and then the first drainage piece 51 and the second drainage piece 52 are moved upward, so that the fixing column 72 is separated from the first drainage piece 51 or the second drainage piece 52. The setting of the fixing member 7 increases the solvent for storing the drainage liquid in the drainage bag 4 on the one hand, and makes the installation of the drainage liquid in the tank body 1 more stable on the other hand.

[0042] Reference Figure 6 The end of the tank body 1 away from the tank cover 2 is provided with a bottom cover 8, and the tank body 1 is provided with a threaded hole 13 for the bottom cover 8 to be threadedly connected. The end of the drainage belt away from the tank cover 2 is provided with an exhaust hole 41, and the drainage bag 4 is provided with an air plug 42 at the exhaust hole 41. When draining, the bottom cover 8 is first opened, and the air plug is removed, so that the air pressure in the drainage bag 4 is consistent with the outside, and the residual drainage liquid in the drainage bag 4 is preliminarily reduced.

[0043] The implementation principle of a negative pressure drainage bag 4 in an embodiment of the present application is as follows: when draining, first tip over the tank body 1, open the bottom cover 8 at the bottom of the tank body 1, remove the air plug 42, initially pour out the drainage liquid in the drainage bag 4, and cover the air plug 42. Then slide the unlocking piece 76 to release the clamping relationship between the fixed column 72 and the first drainage piece 51 and the second drainage piece 52. Finally, rotate the matching piece 62 to clamp the first drainage piece 51 and the second drainage piece 52, and clamp the clamping piece 63 with the locking piece 61. At this time, the first drainage piece 51 and the second drainage piece 52 clamp the drainage bag 4. Rotating the first drainage piece 51 and the second drainage piece 52 can squeeze out the drainage liquid remaining on the inner wall of the drainage bag 4, thereby reducing the residual drainage liquid in the drainage bag 4.

[0044] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0045] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0046] This specification and drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A negative pressure drainage device, characterized in that: The invention comprises a tank body (1) and a tank cover (2), wherein the tank body (1) is provided with a cavity (3) for storing body fluids, and the tank cover (2) is provided with a discharge port for discharging body fluids. The tank body (1) is provided with a drainage bag (4) located in the cavity (3), and the open end of the drainage bag (4) is connected to a side of the tank body (1) close to the tank cover (2). The end of the drainage bag (4) away from the tank cover (2) is provided with a drainer (5), and the drainer (5) comprises a first drainage sheet (51) and a second drainage sheet (52), and the first drainage sheet (51) and the second drainage sheet (52) are connected end to end and are arranged around the drainage bag (4).

2. The negative pressure drainage device according to claim 1, characterized in that: A locking piece (6) for locking the first drainage piece (51) and the second drainage piece (52) is arranged between both ends of the first drainage piece (51), the locking piece (6) comprising a locking piece (61) connected to the first drainage piece (51) and a matching piece (62) rotatably connected to the locking piece (61), a clamping piece (63) is arranged at one end of the matching piece (62) away from the locking piece (61), the clamping piece (63) is provided with a clamping slot (65), and a clamping block (64) is arranged at one side of the locking piece (61) away from the first drainage piece (51), the clamping block (64) passes through the clamping slot (65) and is clamped to the clamping piece (63).

3. The negative pressure drainage device according to claim 1, characterized in that: Two opposite sides of the tank body (1) are provided with penetration grooves (11) for the first liquid drainage sheet (51) and the second liquid drainage sheet (52) to penetrate.

4. The negative pressure drainage device according to claim 1, characterized in that: A fixing member (7) for fixing the first liquid drainage sheet (51) and the second liquid drainage sheet (52) is provided at one end of the tank body (1) away from the tank cover (2).

5. The negative pressure drainage device according to claim 4, characterized in that: The fixing member (7) comprises a fixing block (71) arranged on the outer periphery of the tank body (1) and a fixing column (72) arranged on the fixing block (71); the fixing column (72) and the fixing block (71) are slidably arranged; the first drainage sheet (51) and the second drainage sheet (52) are both provided with a fixing groove (53); the fixing column (72) comprises a fixing ball (722) and a connecting portion (721) connecting the fixing ball (722) and the fixing block (71); the opening diameter of the fixing groove (53) is consistent with the diameter of the connecting portion (721); the diameter of the fixing ball (722) is larger than the diameter of the connecting portion (721); the connecting portion (721) passes through the fixing groove (53); and the fixing ball (722) is snap-fitted with the first drainage sheet (51) or the second drainage sheet (52).

6. The negative pressure drainage device according to claim 5, characterized in that: The fixing block (71) is provided with a mounting groove (73) for the fixing column (72) to slide up and down, and an elastic member (75) is arranged in the mounting groove (73) so that the connecting portion (721) always passes through the fixing groove (53), one end of the elastic member (75) abuts against the side wall of the mounting groove (73), and the end of the elastic member (75) away from the side wall of the mounting groove (73) abuts against the connecting portion (721).

7. The negative pressure drainage device according to claim 6, characterized in that: The fixing member (7) further comprises an unlocking piece (76) slidably arranged with the fixing block (71); the fixing member (7) is provided with a sliding groove (77) for the unlocking piece (76) to slide up and down; one side of the unlocking piece (76) abuts against a side of the elastic member (75) away from the connecting portion (721); and the side of the unlocking piece (76) away from the elastic member (75) abuts against the connecting portion (721).

8. The negative pressure drainage device according to claim 1, characterized in that: An exhaust hole (41) is provided at one end of the drainage bag (4) away from the tank cover (2), and an air blocking plug (42) is provided at the exhaust hole (41) of the drainage bag (4).

9. The negative pressure drainage device according to claim 1, characterized in that: A bottom cover (8) is provided at one end of the tank body (1) away from the tank cover (2), and the bottom cover (8) is threadedly connected to the tank body (1).

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