Negative pressure drainage device

Abstract

The utility model discloses a negative pressure drainage device which comprises a folding bag provided with a connecting hole connected with a drainage tube and a vent hole capable of being connected with a negative pressure device. The folding bag further comprises a cover body, a first shell and a second shell in sliding connection with the first shell, the cover body comprises a first cover plate and a second cover plate in sliding connection with the first cover plate, the first cover plate is detachably connected with the first shell, the second cover plate is detachably connected with the second shell, and a containing cavity for containing the folding bag is defined by the cover body, the first shell and the second shell. The folding bag is detachably connected with the first shell and the second shell, and when the second shell moves relative to the first shell, the folding bag can be expanded or contracted, and the second cover plate is driven to move relative to the first cover plate, so that the length of the containing cavity is changed, the size of the device is changed, and different use requirements are met.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a negative pressure drainage device. BACKGROUND

[0002] Drainage refers to removing abnormal liquid substances from the human body by using medical surgical technology, and is usually used for fluid substances existing in human pathological changes, such as gas, exudate, blood, pus and the like. Drainage is a common surgical treatment method in clinical practice. In the drainage process, some patients are in good condition and can perform certain activities to increase the activity of the patients and exercise the heart and lung capacity of the patients. At present, the negative pressure of the drainage bottle is derived from a pipeline fixed on the wall of a hospital. The pipeline cannot move with the patient, and the clothes pocket of the patient is small and cannot accommodate a large drainage bottle. The patient is inconvenient to carry the drainage bottle to walk. CONTENT OF THE UTILITY MODEL

[0003] In order to facilitate the patient to carry the drainage bottle to walk and improve the physical condition, the application provides a negative pressure drainage device.

[0004] A negative pressure drainage device comprises a folding capsule provided with a connecting hole connected with a drainage tube and a vent hole capable of being connected with a negative pressure device; further comprising a cover body, a first shell and a second shell slidably connected with the first shell, the cover body comprises a first cover plate and a second cover plate slidably connected with the first cover plate, the first cover plate is detachably connected with the first shell and the second cover plate is detachably connected with the second shell, the cover body, the first shell and the second shell form a containing cavity containing the folding capsule, the folding capsule is detachably connected with the first shell and the second shell, and when the second shell moves relative to the first shell, the folding capsule can be expanded or contracted, and the second cover plate is driven to move relative to the first cover plate to change the length of the containing cavity.

[0005] In an embodiment of the application, the negative pressure drainage device is provided with two second cover plates and two second shells; a first cover plate is arranged between the two second cover plates, the two second cover plates have the same extension direction as the first cover plate and are slidably connected with the first cover plate; a first shell is arranged between the two second shells, the two second shells are slidably connected with the first shell to change the length of the containing cavity; the two second cover plates are detachably connected with one second shell respectively and can move with the second shell.

[0006] In an embodiment of the application, one second shell is connected with the other second shell through a scissor structure to enable the two second shells to simultaneously approach or move away from the first shell.

[0007] In an embodiment of the application, the negative pressure drainage device further comprises a threaded rod, the threaded rod is rotationally connected with the first shell and is threadedly connected with the scissor structure, and when the threaded rod rotates, the scissor structure can be stretched or contracted.

[0008] In one embodiment of the present application, the scissors structure is arranged at the bottom of the accommodating cavity, and the connecting rod movement plane of the scissors structure is parallel to the bottom wall of the accommodating cavity.

[0009] In one embodiment of the present application, the top of the folding bag is provided with a top fixing plate, and when the folding bag is arranged in the accommodating cavity, the first cover plate and the first shell clamp the top fixing plate to fix the folding bag.

[0010] In one embodiment of the present application, the second shell is provided with a fixing slot, and the extension direction of the fixing slot is the same as the depth direction of the accommodating cavity; the side wall of the folding bag is provided with a side fixing plate capable of being inserted into the fixing slot, and the side fixing plate and the fixing slot are detachably inserted and matched.

[0011] In one embodiment of the present application, the first cover plate is provided with a negative pressure device; the top of the folding bag is provided with a vent hole; when the folding bag is arranged in the accommodating cavity, the negative pressure device and the vent hole are detachably inserted and matched when the cover plate is connected with the first shell and the second shell.

[0012] In one embodiment of the present application, the first cover plate is provided with a working hole for the drainage tube to communicate with the accommodating cavity.

[0013] In one embodiment of the present application, the negative pressure drainage device further comprises a drainage tube connected with the connecting hole, and the drainage tube is provided with an adjusting valve.

[0014] The present application has at least the following beneficial effects:

[0015] 1. The length of the accommodating cavity in the present application can be adjusted by the relative movement of the first cover plate, the second cover plate, the first shell and the second shell, so as to change the size of the entire negative pressure drainage device. When the patient moves, the size of the present application can be reduced, so as to facilitate the patient to carry the present application. When the patient lies on the hospital bed, the size of the present application can be increased, so that the folding bag is expanded and can hold more effusion, reducing the cleaning frequency and facilitating the user to use.

[0016] 2. When the patient carries and moves the present application, the first cover plate, the second cover plate, the first shell and the second shell in the present application can provide support for the folding bag, so as to avoid the wall of the folding bag being extruded and deformed and the effusion in the folding bag overflowing.

[0017] 3. By means of detachable connection of the first cover plate and the first shell, detachable connection of the second cover plate and the second shell, and detachable insertion and matching of the side fixing plate and the second shell, the folding bag can be replaced and used as a disposable product. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of one illustrative embodiment of the present application.

[0019] Figure 2 is a structural schematic diagram of an illustrative embodiment of the folding bag in the present application;

[0020] Figure 3 is a structural schematic diagram of an illustrative embodiment of the folding bag in the present application;

[0021] Figure 4 is a structural schematic diagram of an illustrative embodiment of the folding bag in the present application;

[0022] Figure 5 is a structural schematic diagram of an illustrative embodiment of the negative pressure device in the present application;

[0023] Figure 6 is a structural schematic diagram of an illustrative embodiment of the cover and the first shell and the second shell in the present application.

[0024] In the drawings:

[0025] 101, first cover plate; 102, second cover plate; 103, working hole; 104, negative pressure device; 105, fastening bolt;

[0026] 201, first shell; 202, second shell; 203, fixed slot;

[0027] 301, folding bag; 302, top fixing plate; 303, side fixing plate; 304, connecting hole; 305, air hole;

[0028] 401, first connecting rod; 402, second connecting rod; 403, third connecting rod; 404, threaded rod. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings, in which the same reference numerals represent the same or similar parts having the same function.

[0030] In this document, "illustrative" means "serving as an example, instance, or illustration" and should not necessarily be construed as "preferred" or "advantageous" over other techniques.

[0031] In order to make the drawings simple, only the parts related to the present application are schematically shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts having the same structure or function is schematically shown, or only one of them is marked.

[0032] See Figures 1 to 6 Understand the present application.

[0033] See Figure 1 , Figure 2 A negative pressure drainage device comprises a folding capsule 301, which is provided with a connecting hole 304 connected with a drainage tube and a vent hole 305 capable of being connected with a negative pressure device 104, and further comprises a top fixing plate 302 and two side fixing plates 303 located at both sides of the length direction of the folding capsule 301, and a folding capsule wall is arranged between the two side fixing plates 303, and the length of the folding capsule 301 can be changed when the folding capsule wall is stretched or extruded, thereby changing the volume of the folding capsule 301.

[0034] See Figure 1 , Figure 3 , Figure 5 A negative pressure drainage device further comprises a cover, a first shell 201 and a second shell 202 slidably connected with the first shell 201, the cover comprises a first cover plate 101 and a second cover plate 102 slidably connected with the first cover plate 101, the first cover plate 101 is detachably connected with the first shell 201, and the second cover plate 102 is detachably connected with the second shell 202, and the cover, the first shell 201 and the second shell 202 form a containing cavity for containing the folding capsule 301, in an embodiment of the present application, the second cover plate 102 is threadedly connected with the second shell 202 through a fastening bolt 105, so as to realize the detachable connection between the second cover plate 102 and the second shell 202, and of course, the detachable connection between the second cover plate 102 and the second shell 202 can also be realized by using clamping and the like; meanwhile, since the first cover plate 101 and the second cover plate 102 are connected, the fastening bolt 105 indirectly limits the first cover plate 101 from moving away from the first shell 201 through the second cover plate 102, so as to realize the detachable connection between the first cover plate 101 and the first shell 201, and of course, the detachable connection between the first cover plate 101 and the first shell 201 can also be realized by using clamping and the like, when the second shell 202 moves relative to the first shell 201, the second shell 202 drives the second cover plate 102 to move relative to the first cover plate 101, so as to change the distance between the first shell 201 and the second shell 202, change the distance between the first cover plate 101 and the second cover plate 102, and thereby change the length of the containing cavity.

[0035] See Figure 1 , Figures 3 to 6, the folding bag 301 is detachably connected with the first shell 201 and the second shell 202. In an embodiment of the present application, the second shell 202 is provided with a fixed slot 203, and the extending direction of the fixed slot 203 is the same as the depth direction of the accommodating cavity. The side wall of the folding bag 301 is provided with a side fixing plate 303 which can be inserted into the fixed slot 203, and the side fixing plate 303 is detachably inserted into the fixed slot 203, so that the side fixing plate 303 can move with the second shell 202. The top of the folding bag 301 is provided with a top fixing plate 302 which is connected with the first shell 201 by insertion, so as to limit the movement of the top fixing plate 302 along the length direction of the accommodating cavity. When the folding bag 301 is arranged in the accommodating cavity, the first cover plate 101 and the first shell 201 clamp the top fixing plate 302, so as to fix the folding bag 301. Since the side fixing plate 303 can move with the second shell 202, when the second shell 202 moves away from the first shell 201, the folding bag 301 can expand, and when the second shell 202 moves close to the first shell 201, the folding bag 301 can contract, so as to meet different use requirements of patients.

[0036] Referring to Figure 1 , Figure 5 In an embodiment of the present application, the negative pressure drainage device is provided with two second cover plates 102 and two second shells 202. The first cover plate 101 is arranged between the two second cover plates 102, and the extending direction of the two second cover plates 102 is the same as that of the first cover plate 101, and the two second cover plates 102 are slidably connected with the first cover plate 101. The first shell 201 is arranged between the two second shells 202, and the two second shells 202 are slidably connected with the first shell 201, so as to change the length of the accommodating cavity. The two second cover plates 102 are detachably connected with the second shells 202 respectively, and can move with the second shells 202, so that the two side walls along the length direction of the accommodating cavity can move with the second shells 202, and the length change of the accommodating cavity is more various.

[0037] Further, in an embodiment of the present application, one second shell 202 is connected with another second shell 202 through a scissors structure, so that the two second shells 202 can simultaneously approach or move away from the first shell 201, and the length of the accommodating cavity can be changed greatly. Referring to Figure 3, the scissor structure comprises a first connecting rod 401, a second connecting rod 402, and a third connecting rod 403, one of the second housings 202 is pivotally connected with two first connecting rods 401, the other second housing 202 is pivotally connected with two second connecting rods 402, and two third connecting rods 403 are provided, one end of the third connecting rod 403 is pivotally connected with the first connecting rod 401, and the other end is pivotally connected with the second connecting rod 402, in an embodiment of the present application, the negative pressure drainage device further comprises a threaded rod 404, the threaded rod 404 is rotatably connected with the first housing 201 and is threadedly connected with the scissor structure, see Figure 3 , the threaded rod 404 is provided with two threads with opposite rotation directions, the threaded rod 404 is threadedly connected with the two third connecting rods 403 through the two threads with opposite rotation directions, so that when the threaded rod 404 rotates, the two third connecting rods 403 can simultaneously approach or move away from each other, thereby driving the scissor structure to stretch or contract, so that the two second housings 202 simultaneously approach or move away from the first housing 201. Of course, other ways can also be used to realize the mutual approach or movement away of the two third connecting rods 403, such as using a small hydraulic rod, which will not be described here.

[0038] In an embodiment of the present application, the scissor structure is arranged at the bottom of the accommodating cavity, and the connecting rod movement plane of the scissor structure is parallel to the bottom wall of the accommodating cavity, thereby avoiding excessive occupation of the space of the accommodating cavity by the scissor structure.

[0039] In an embodiment of the present application, the first cover plate 101 is provided with a negative pressure device 104; the top of the folding bag 301 is provided with a vent hole 305, and the liquid is located at the bottom of the folding bag 301 under the action of gravity, thereby avoiding the liquid from entering the negative pressure device 104 through the vent hole 305; the folding bag 301 is placed in the accommodating cavity, and when the cover plate is connected with the first housing 201 and the second housing 202, the negative pressure device 104 and the vent hole 305 are detachably inserted and matched, so as to facilitate the disassembly of the negative pressure device 104 and the vent hole 305 for replacing the folding bag 301; the negative pressure device 104 can communicate with the folding bag 301, and the internal space of the folding bag 301 can be suctioned, so that a negative pressure is generated in the folding bag 301, and fluids such as hydrops can enter the folding bag 301 through the connecting hole 304. The negative pressure device 104 can be a small turbine fan, a piston air pump or the like; a battery can be arranged on the first cover plate 101 to supply power to the negative pressure device 104.

[0040] Referring to Figure 1In an embodiment of the present application, the first cover plate 101 is provided with a working hole 103 for the drainage tube to communicate with the accommodating cavity. Further, the connecting hole 304 is arranged at the top of the folding bag 301, and the connecting hole 304 can pass through the working hole 103 to the outside, or the connecting hole 304 is located in the accommodating cavity, and the drainage tube can communicate with the connecting hole 304 in the accommodating cavity through the working hole 103. Therefore, the drainage tube can communicate with the connecting hole 304 located in or outside the accommodating cavity through the working hole 103 to communicate with the accommodating cavity.

[0041] In an embodiment of the present application, the negative pressure drainage device further comprises a drainage tube connected with the connecting hole 304, and the drainage tube is provided with an adjusting valve to facilitate adjusting the flow area of the drainage tube through the adjusting valve to meet different use requirements.

[0042] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0043] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application, such as combination, division or repetition of features, should be included in the protection scope of the present application.

Claims

1. A negative pressure wound drainage device, characterized in that, The negative pressure drainage device comprises a folding bag, a connecting hole connected with a drainage tube, and a vent hole connected with a negative pressure device. The negative pressure drainage device further comprises a cover, a first shell, and a second shell connected with the first shell, the cover comprises a first cover plate and a second cover plate connected with the first cover plate, the first cover plate is detachably connected with the first shell, and the second cover plate is detachably connected with the second shell, the cover, the first shell, and the second shell form a containing cavity for containing the folding bag, the folding bag is detachably connected with the first shell and the second shell, and the second shell is capable of expanding or contracting the folding bag when moving relative to the first shell, and the second cover plate is capable of moving relative to the first cover plate to change the length of the containing cavity.

2. The negative pressure drainage device according to claim 1, wherein the negative pressure drainage device is provided with two second cover plates and two second shells. The first cover plate is arranged between the two second cover plates, the two second cover plates have the same extension direction as the first cover plate, and the two second cover plates are connected with the first cover plate in a sliding manner. The first shell is arranged between the two second shells, the two second shells are connected with the first shell in a sliding manner to change the length of the containing cavity. The two second cover plates are respectively detachably connected with one second shell and are capable of moving with the second shell.

3. The negative pressure drainage device according to claim 2, wherein one second shell is connected with the other second shell through a scissor structure, so that the two second shells simultaneously approach or move away from the first shell.

4. The negative pressure drainage device according to claim 3, wherein the negative pressure drainage device further comprises a threaded rod, the threaded rod is connected with the first shell in a rotating manner, and is threadedly connected with the scissor structure, so that the threaded rod is capable of driving the scissor structure to stretch or contract when rotating.

5. The negative pressure drainage device according to claim 3, wherein the scissor structure is arranged at the bottom of the containing cavity, and the movement plane of the connecting rod of the scissor structure is parallel to the bottom wall of the containing cavity.

6. The negative pressure drainage device according to claim 1, wherein the top of the folding bag is provided with a top fixing plate, and the first cover plate and the first shell clamp the top fixing plate to fix the folding bag when the folding bag is arranged in the containing cavity.

7. The negative pressure drainage device according to claim 1, wherein the second shell is provided with a fixing slot, the extension direction of the fixing slot is the same as the depth direction of the containing cavity, the side wall of the folding bag is provided with a side fixing plate capable of being inserted into the fixing slot, and the side fixing plate is detachably inserted into the fixing slot.

8. The negative pressure drainage device according to claim 1, wherein the first cover plate is provided with a negative pressure device, the top of the folding bag is provided with a vent hole, and the negative pressure device is detachably inserted into the vent hole when the cover plate is connected with the first shell and the second shell. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. The negative pressure drainage device according to claim 8, wherein the first cover plate is provided with a working hole for the drainage tube to communicate with the accommodating cavity.

10. The negative pressure drainage device according to claim 1, wherein the negative pressure drainage device further comprises a drainage tube connected with the connecting hole, and the drainage tube is provided with an adjusting valve. ​ ​

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