A filter box

Abstract

The embodiment of the present invention provides a filter box for use in a medical waste liquid collection device, comprising: a metal base, the shell of the metal base forms a first cavity and a discharge end for connecting the medical waste liquid collection device and discharging the medical waste liquid in the first cavity to the medical waste liquid collection device; the discharge end is provided with an anti-drip valve; a metal top cover, which is detachably mounted on the metal base and is provided with at least one collection end for connecting an external suction pipeline and introducing medical waste liquid into the first cavity; a metal filter device, which is arranged in the first cavity and is used to filter the medical waste liquid introduced by the collection end; the metal filter device is also provided with a valve fixing device, which is connected to the anti-drip valve and fixes the anti-drip valve. Through the new structural design, the filter box made of metal can achieve anti-drip and sealing effects and realize the reuse of the filter box.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, and in particular to a filter box used for medical waste liquid collection equipment. Background Art

[0002] During certain surgical procedures, liquid, semi-solid and solid wastes are inevitably generated. Specifically, these include body fluids, such as blood, and perfusion solutions introduced into the surgical site during surgery. In addition, solid and semi-solid wastes generated during surgery include tissue fragments and small pieces of surgical materials that may remain in the body. Ideally, wastes should be collected as soon as they are generated so that they do not contaminate the surgical site or become biohazards in the operating room or other locations where the surgical procedure is performed.

[0003] In the prior art, there are a variety of waste liquid collection systems that can be used by medical staff to collect waste liquid generated during surgery or after surgery. The principle is mainly to use a vacuum source to generate suction force to suck the waste liquid generated at the surgical site into a specific collection container. That is, after the system is started, the suction force generated by the vacuum source reaches the surgical site, thereby sucking the waste liquid into a specific collection container through the pipeline contacting the surgical site.

[0004] In the prior art, the filter box connected to the waste collection device through a cannula is usually disposable. The original intention of the waste liquid collection container is to achieve the reusability of the surgical waste liquid collection device. As a component closely connected to the waste liquid collection device, a reusable filter box is also urgently needed. Summary of the invention

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a filter box that can be reused by steam sterilization.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a filter box for use in a medical waste liquid collection device, comprising:

[0007] A metal base, wherein the shell of the metal base forms a first inner cavity and a discharge end for connecting to the medical waste liquid collection device and discharging the medical waste liquid in the first inner cavity to the medical waste liquid collection device;

[0008] The discharge end is provided with an anti-drip valve;

[0009] A metal top cover is detachably mounted on the metal base and is provided with at least one collecting end for connecting an external suction line and introducing medical waste liquid into the first inner cavity;

[0010] A metal filter device is arranged in the first inner cavity and is used to filter the medical waste liquid introduced by the collecting end; the metal filter device is also provided with a valve fixing device, and the valve fixing device is connected to the anti-drip valve and fixes the anti-drip valve.

[0011] Furthermore, the metal base includes an open end and a closed end, the open end cooperates with the metal top cover to close the first inner cavity; the closed end is located at the discharge end to install the anti-drip valve.

[0012] Furthermore, the metal base is provided with a first connecting portion, and the metal top cover is provided with a second connecting portion, and the first connecting portion and the second connecting portion are detachably connected;

[0013] Furthermore, the first connecting portion is a fixing button, and the second connecting portion is a fixing bayonet, and the fixing bayonet is matched with the fixing button.

[0014] Furthermore, the metal top cover includes a top wall, an outer wall and an inner wall; the collecting end is arranged on the top wall, the fixing bayonet is arranged on the outer wall, and the inner wall and the outer wall form a sealing slot.

[0015] Furthermore, the opening end includes an extension portion, and a sealing ring is arranged between the extension portion, the outer side wall and the inner side wall.

[0016] Furthermore, the extension portion is a curled edge of the shell.

[0017] Furthermore, the metal filtering device includes a filtering bottom wall, a filtering side wall extending upward from the filtering bottom wall, and a valve fixing device connected to the filtering bottom wall, and the valve fixing device includes at least one extension component connected to the filtering bottom wall, and a pressing part connected to the extension component for fixing the anti-drip valve.

[0018] Furthermore, the anti-drip valve includes a valve seat accommodated at the closing end and a valve core accommodated at the discharge end, and the valve seat is provided with an annular groove.

[0019] Furthermore, the pressing part is an annular clamp that can be inserted into the annular groove.

[0020] Furthermore, the extension component is a cylindrical extension rod, the extension component is welded to the annular clamp, and the number of the extension components is two.

[0021] Furthermore, a third connection portion capable of lifting the metal filter device is provided inside the metal top cover, and the metal filter device is provided with a fourth connection portion matched with the third connection portion.

[0022] Furthermore, the third connecting portion is a hook, and the fourth connecting portion is a handle.

[0023] Furthermore, the fixing button includes a first slot matched with the fixing bayonet and a second slot for fixing the collection end cover matched with the collection end.

[0024] Furthermore, the anti-drip valve and the sealing ring are made of silicone material.

[0025] Furthermore, the metal base, metal top cover and metal filtering device are all made of stainless steel.

[0026] The implementation of the embodiments of the present invention has the following beneficial effects: through the new structural design, the filter box made of metal can achieve anti-drip and sealing effects, and can be used in waste liquid collection equipment that utilizes negative pressure to collect waste liquid. Therefore, the filter box made of metal can be steam sterilized to achieve reuse of the filter box, thereby greatly saving the number of filter boxes used, being more economical and environmentally friendly, and reducing the cost of use for patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative work, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the filter box provided by the present invention.

[0029] Figure 2 It is a structural schematic diagram of the metal base of the filter box provided by the present invention.

[0030] Figure 3 It is a schematic structural diagram of the metal top cover of the filter box provided by the present invention.

[0031] Figure 4 It is a structural schematic diagram of the metal filter device of the filter box provided by the present invention.

[0032] Figure 5 It is a structural schematic diagram of the metal top cover of the filter box provided by the present invention and the metal filter device attached thereto.

[0033] Figure 6 It is a structural schematic diagram of the collecting end cover provided by the present invention.

[0034] Figure 7 It is a front view of the filter box provided by the present invention.

[0035] Figure 8 yes Figure 7 A cross-sectional view of section AA of the filter cassette is shown.

[0036] Fig. 9 yes Figure 8 A partial enlarged view of the sealing ring installation structure is shown. DETAILED DESCRIPTION

[0037] The following descriptions of the embodiments are made with reference to the accompanying drawings to illustrate specific embodiments of the present invention. The directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] like Figure 1-Figure 4 As shown, Figure 1 A filter box 10 provided in an embodiment of the present invention is shown, and the filter box 10 is used on a medical waste liquid collection device (not shown in the figure). In this embodiment, the filter box 10 includes a metal base 100, a metal filter device 300 disposed in the metal base 100, and a metal top cover 200 detachably connected to the metal base 100. Specifically: the shell 101 of the metal base 100 forms a first inner cavity 130 and a discharge end 110 for connecting to a medical waste liquid collection device and discharging the medical waste liquid in the first inner cavity 130 to the medical waste liquid collection device; at least one collecting end 210 for connecting an external suction pipeline and introducing medical waste liquid into the first inner cavity 130; and a metal filter device 300 disposed in the first inner cavity 130 and used to filter the medical waste liquid introduced by the collecting end 210; the metal top cover 200 is detachably mounted on the metal base 100. The collecting end 210 is disposed on the metal top cover 200, see Figure 5 As shown, the metal filter device 300 is detachably attached to the metal cover 200. In this embodiment, the collecting end 210 is disposed on the metal cover 200. The collecting end 210 includes a first front port 211, a first rear port 213, and a first inserting tube 212 for connecting the first front port 211 and the first rear port 213. Figure 8 shown.

[0040] See also Figure 2 and Figure 8 , Figure 2 and Figure 8The metal base 100 shown includes a shell 101, which forms a first inner cavity 130, and the first inner cavity 130 is used to accommodate the metal filter device 300 to filter medical waste liquid. In this embodiment, the height of the first inner cavity 130 is greater than its diameter, and its diameter is set within a range that is easy to grasp with one hand. In addition, the metal base 100 is provided with a first connecting portion 110 in the shell 101 located at the upper end of the first inner cavity 130, and the first connecting portion 110 is detachably connected to the second connecting portion 210 located at the metal top cover 200. The first connecting portion 110 is a fixing button, and the second connecting portion 210 is a fixing bayonet, and the specific fixing bayonet is an L-shaped notch, which is fixed and disassembled with the first connecting portion 110 by rotation. The first inner cavity 130 has a first bottom wall 131, and the first bottom wall 131 is a truncated cone structure, forming an inclined surface for gathering liquid.

[0041] For details, see Figure 3 and Figure 4 The metal top cover 200 includes a top wall 201, which extends axially downward to form an outer wall 202 and an inner wall 203, and the height of the outer wall 202 is greater than the height of the inner wall 203. A sealing groove 204 is formed between the outer wall 202 and the inner wall 203. In this embodiment, the top wall 201 and the inner wall 203 form a second inner cavity 230, and the collecting end 210 is connected to the second inner cavity 230 through the second rear port 213. When there are multiple collecting ends 210, a partition ridge for separating the second rear port 213 is provided in the second inner cavity 230, so that the medical waste liquid entering from different collecting ends 210 can not interfere with each other before changing the liquid inlet direction. In this example, there are two collecting ends 210, and three or four collecting ends 210 can also be provided. The second connecting portion 210 is provided on the outer wall 202.

[0042] See also Figure 3-Figure 5, the inner side of the top wall 201 of the metal top cover 200 is located in the second cavity 230 and is also provided with a third connection part 240 that can lift the metal filter device 300, and the metal filter device 300 is provided with a fourth connection part 340 that is matched with the third connection part 240. In this embodiment, the third connection part 240 is a hook, and the fourth connection part 340 is a handle. When the metal top cover 200 is removed, the third connection part 240 pulls the fourth connection part 340 so that the metal filter device 300 can be taken out without touching the metal filter device 300. In other embodiments, the third connection part 240 and the fourth connection part 340 can adopt other forms of detachable structures or hanging structures, or can be other deformation methods adopted by the hook and handle for fixation, stability, and easy disassembly, which are not repeated here. Since the filter box 10 in the present invention is reusable and needs to be easy to steam sterilize, its structure needs to reduce dead angles, and a simple structure can achieve a better disinfection effect. At the same time, the advantage of the hook and handle structure is that the metal top cover 200 and the metal filter device 300 are easy to install and disassemble. When a large amount of sampling is required, the metal top cover 200 and the metal filter device 300 can be directly removed, and the metal filter device 300 can be easily removed to take samples therefrom.

[0043] The filter box 10 is also provided with a collecting end cover 610 that can be matched with the collecting end 210, and the number of the collecting end covers 610 is the same as the number of the collecting ends 210. Figure 6-Figure 8 The collecting end cover 610 is connected to the fixing ring 640 through the lace 630, and the fixing ring 640 is fixed to the fixing button, that is, the first connecting portion 120, wherein the fixing button includes a first card slot 121 matched with the fixing bayonet and a second card slot 122 for fixing the collecting end cover 610 matched with the collecting end 210, and specifically, the fixing ring 640 is fixed to the second card slot 122. In addition, the collecting end cover 610 is provided with at least one operating component 620. In this embodiment, the operating component 620 is a semicircular ear piece, which is used to plug and unplug the collecting end cover 610. Preferably, at least two operating components 620 are symmetrically arranged.

[0044] See also Figure 4 and Figure 8 As shown, the metal filter device 300 has a filter side wall 310 and a filter bottom wall 320, and the filter side wall 310 and the filter bottom wall 320 are both provided with filter holes 301, and at least one overflow window 330 is provided on the filter side wall 310. In this embodiment, the number of overflow windows 330 is two, and in other embodiments, it can be one or more, which is not repeated here. Since the opening of the overflow window 312 is relatively large, in order not to affect the filtering effect, the overflow window 312 is provided at the upper end of the filter side wall 310.

[0045] See also Figure 7-Figure 9 , Figure 7is a front view of the filter box 10, Figure 8 for Figure 7 The cross-sectional view of the filter box AA section is shown, Fig. 9 for Figure 8 A partial schematic diagram of the middle sealing ring connection structure. The collecting end 210 is connected to an external suction pipeline (not shown in the figure), the discharging end 110 is connected to a medical waste liquid collection device, the metal top cover 200 is connected to a metal base 100, and the metal filter device 300 can be attached to the metal top cover 200. In this embodiment, the metal filter device 300 is a cylindrical filter basket. When the medical waste liquid collection device is started, the medical waste liquid enters the collecting end 210 through the external suction pipeline, and flows into the second inner cavity 230. After the waste liquid enters the metal filter device 300, the liquid flows out from the filter hole 301, and other tissues remain in the metal filter device 300. The liquid can enter the discharge end 110 through the liquid path between the filter bottom wall 320 and the first bottom wall 131, and can also flow through the liquid path between the shell 101 and the filter side wall 310. Among them, see Figure 7 , the housing 101 forms a first inner cavity 130. This structure allows the filtered liquid to enter the medical waste liquid collection device through the liquid path between the filter side wall 310 and the housing 101 even if the filter bottom wall 320 of the metal filter device 300 is blocked by tissue. Preferably, a supporting side wall 370 is further provided at the bottom of the filter side wall 310 of the metal filter device 300. The supporting side wall 370 is used to stabilize the metal filter device 300 in the first inner cavity 130 to form a liquid path between the filter bottom wall 320 and the first bottom wall 131. After the filter bottom wall 320 is blocked, the liquid can enter the discharge end 110 through the gap between the filter side wall 310 and the housing 101.

[0046] See also Figure 2 and Fig. 9 The metal base 100 further includes a discharge end 110 communicating with the first inner cavity 130. The discharge end 110 may be formed by extending the first bottom wall 131 downward. Figure 8The metal base 100 includes an open end 140 and a closed end 111. The open end 140 cooperates with the metal top cover 200 to close the first inner cavity 130. The open end 140 includes an extension 102. A sealing ring 500 is arranged between the extension 102, the outer wall 202 and the inner wall 203. The sealing ring 500 enables the metal top cover 200 and the metal base 100 to be sealed. The extension 102 is a curling edge in the first inner cavity 130 of the shell 101 to increase the contact area between the sealing ring 500 and the extension 102, so as to better support the sealing ring 500 and achieve a better sealing effect. In order to enable steam sterilization, the sealing ring 500 is made of silicone material. The closing end 111 is located at the discharge end 110 to install the anti-drip valve 400. The inner diameter of the closing end 111 is smaller than the inner diameter of the discharge pipeline 112. Specifically, the closing end 111 is formed by folding inward at the outlet of the discharge end 110. The closing end 111 forms an annular step to prevent the anti-drip valve 400. In order to enable steam sterilization, the anti-drip valve 500 is made of silicone material.

[0047] See also Figure 4 as well as Figure 8 The metal filter device 300 further includes a valve fixing device connected to the filter bottom wall 320, and the valve fixing device includes at least one extension component 350 connected to the filter bottom wall 320, and a pressing part 360 connected to the extension component 350 to fix the anti-drip valve 400. The anti-drip valve 400 includes a valve seat 410 accommodated in the closing end 111 and a valve core 420 accommodated in the discharge end 110, the valve seat 410 is provided with an annular groove 411, the pressing part 360 is an annular clamping head that can be inserted into the annular groove 411, the extension component 350 is a cylindrical extension rod, the extension component is welded to the annular clamping head, and the number of the extension components 350 is two. During assembly, the anti-drip valve 400 is placed at the closing end 111, and after the metal filter device 300 is placed, the pressing part 360 is inserted into the annular groove 411, and the weight of the metal filter device 300 is pressed on the anti-drip valve 400 by using two extension components 350, so that the valve fixing device fixes the anti-drip valve 400. The extension component 350 and the pressing part 360 can also adopt other deformation structures that achieve the same or similar functions, which are not repeated here.

[0048] In this embodiment, all structures except the sealing ring 500 and the anti-drip valve 400, such as the metal base, the metal top cover and the metal filter device, are made of metal materials, preferably stainless steel.

[0049] The implementation of the embodiments of the present invention has the following beneficial effects: through the new structural design, the filter box made of metal can achieve anti-drip and sealing effects, and can be used in waste liquid collection equipment that utilizes negative pressure to collect waste liquid. Therefore, the filter box made of metal can be steam sterilized to achieve reuse of the filter box, thereby greatly saving the number of filter boxes used, being more economical and environmentally friendly, and reducing the cost of use for patients.

[0050] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A filter box used in medical waste liquid collection equipment, characterized in that: include: A metal base, wherein the shell of the metal base forms a first inner cavity and a discharge end for connecting to the medical waste liquid collection device and discharging the medical waste liquid in the first inner cavity to the medical waste liquid collection device; The discharge end is provided with an anti-drip valve; A metal top cover is detachably mounted on the metal base and is provided with at least one collecting end for connecting an external suction line and introducing medical waste liquid into the first inner cavity; A metal filter device, which is disposed in the first inner cavity and is used to filter the medical waste liquid introduced by the collecting end; the metal filter device is also provided with a valve fixing device, which is connected to the anti-drip valve and fixes the anti-drip valve; The metal base includes an open end and a closed end, wherein the open end cooperates with the metal top cover to close the first inner cavity; the closed end is located at the discharge end to install the anti-drip valve; The metal base is provided with a first connection part, and the metal top cover is provided with a second connection part, and the first connection part and the second connection part are detachably connected; The metal filter device includes a filter bottom wall, a filter side wall extending upward from the filter bottom wall, and the valve fixing device connected to the filter bottom wall. The valve fixing device includes at least one extension component connected to the filter bottom wall, and a pressing part connected to the extension component to fix the anti-drip valve.

2. The filter box according to claim 1, characterized in that The first connection portion is a fixing button, and the second connection portion is a fixing bayonet, and the fixing bayonet is matched with the fixing button.

3. The filter box according to claim 2, characterized in that: The metal top cover comprises a top wall, an outer wall and an inner wall; the collecting end is arranged on the top wall, the fixing bayonet is arranged on the outer wall, and the inner wall and the outer wall form a sealing slot.

4. The filter box according to claim 3, characterized in that: The open end includes an expansion portion, and a sealing ring is arranged between the expansion portion, the outer side wall and the inner side wall.

5. The filter box according to claim 4, characterized in that The extension portion is a curled edge of the shell.

6. The filter cartridge according to claim 1, wherein: The anti-drip valve comprises a valve seat accommodated at the closing end and a valve core accommodated at the discharge end, and the valve seat is provided with an annular groove.

7. The filter cartridge according to claim 6, wherein: The pressing and fixing part is an annular clamp which can be inserted into the annular clamping groove.

8. The filter cartridge according to claim 7, characterized in that: The extension component is a cylindrical extension rod, the extension component is welded to the annular clamp, and the number of the extension components is two.

9. The filter cartridge according to claim 8, characterized in that: A third connection part capable of lifting the metal filter device is arranged inside the metal top cover, and the metal filter device is provided with a fourth connection part matched with the third connection part.

10. The filter cartridge according to claim 9, characterized in that The third connection part is a hook, and the fourth connection part is a handle.

11. The filter cartridge according to claim 2, characterized in that: The fixing button includes a first slot matched with the fixing bayonet and a second slot for fixing a collection end cover matched with the collection end.

12. The filter cartridge according to claim 4, wherein: The anti-drip valve and the sealing ring are made of silicone material.

13. The filter box according to any one of claims 1 to 12, characterized in that: The metal base, metal top cover and metal filtering device are all made of stainless steel.

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