CN211686714U - Waste collection nursing device in operating room nursing and filter screen assembly thereof - Google Patents

Abstract

The utility model relates to a waste collection and nursing device in operating room nursing and a filter screen assembly thereof. A waste collection and nursing device in operating room nursing, comprising at least a box body and a first cover plate, the collection and nursing device further comprising a second cover plate located on the open end surface of the box body, the first cover plate The cover plate is slidably connected to the second cover plate, wherein the first cover plate can move in a first direction relative to the second cover plate and make the first cover plate and the second cover plate The area of the area overlapping each other in the first direction increases or decreases, so that the box body is closed when the area of the area is the minimum value.

Description

A waste collection and nursing device in operating room nursing and its filter screen assembly

technical field

The utility model relates to the technical field of instruments used in operating rooms, in particular to a waste collection and nursing device in operating room nursing and a filter screen assembly thereof.

Background technique

Medical waste refers to wastes with direct or indirect infectious, toxic and other hazards generated by medical and health institutions in medical treatment, prevention, health care and other related activities. A large amount of medical waste is generated in the operating room every day. If it is improperly managed, it will spread to the surrounding environment, which will not only cause environmental pollution and increase the chance of cross-infection in the hospital, but also easily cause accidental injury to medical staff. Once it flows into the society, it will cause disease spread and consequences. Incredible. Therefore, strengthening the effective management of medical waste in the operating room is an important measure to control iatrogenic infection, ensure the health of medical staff, and maintain the external environment. In the nursing work of hospitals or medical institutions, many medical wastes are often generated. In the prior art, surgical wastes are usually thrown directly onto the floor covered with plastic sheets, into surgical trays, or into ordinary open trash cans or If the garbage is thrown directly on the ground, it is easy for the waste liquid such as blood stains carried by the waste to be splashed everywhere, and it is difficult to clean up.

Especially for surgical operations that often produce a large amount of mixed liquids such as blood, body fluids, irrigation fluids, etc., the common non-sharp wastes carrying waste fluids that have been in contact with patients, such as cotton used for skin and mucous membrane disinfection during surgery. Balls, blood-stained gauze, endotracheal tubes for anesthesia, epidural catheters, needleless blood transfusions, infusion sets, etc., are placed together when solids and mixed liquids are collected to accelerate the growth and spread of bacteria and viruses, while producing The pungent odor affects the treatment environment. Especially for the wastes contaminated with pungent-smelling gastric juice or bile and other liquids in surgical abdominal surgery or intestinal obstruction surgery, most of the gastric juice and bile are drained by the drainage tube to a special odor-isolating collection device, which cannot be Avoided residues will result in waste with odorous waste. In addition, the cleaning of medical waste in the operating room is usually carried out when the collection device is loaded with at least 3/4 of the collection space or at the end of each operation, and the operation time is often up to several hours, increasing the open collection device Potential for bacteria or viruses to grow inside.

The Chinese Patent Publication No. CN208278736U discloses a waste collection and nursing device, which includes a waste collection mechanism and a height adjustment mechanism arranged below the waste collection mechanism. The waste collection mechanism includes a collection box with an opening at the top. There is a box door on the side, a rotating shaft is arranged at the opening of the collecting box, the top of the collecting box is movably provided with a cover plate matched with the opening through the rotating shaft, a number of germicidal lamps are arranged side by side at the bottom of the cover plate, and a drawer type is movable in the middle of the collecting box. Filter.

For the waste collection and nursing device provided in the prior art, such as the above-mentioned patent, there are at least one of the following problems in actual use. Part of the waste or the liquid in the waste is adhered to the outer surface of the device. When the device is not in use, its contaminated cover surface has been exposed to the external environment; on the other hand, in the process of opening and closing the cover many times Because the middle part of the cover plate of the collecting device is hinged to the opening of the collecting box, each rotation of the cover plate is similar to the stirring action, which leads to the acceleration of the air flow around the collecting box and inside the collecting box. The waste collection and care device also has the problems that the odor in the collection box is dissipated and the environment with relatively dense flora in the environment of the box is leaked into the surrounding environment.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a waste collection and nursing device in operating room nursing, which at least includes a box body and a first cover plate, and the collection and nursing device also includes an open-shaped hood located in the box body. a second cover plate on the end face, the first cover plate is slidably connected to the second cover plate, wherein the first cover plate can move relative to the second cover plate in a first direction and make the The area of the overlapping area between the first cover plate and the second cover plate in the first direction increases or decreases, so that the box body is closed when the area of the area is the smallest .

According to a preferred embodiment, the collecting and nursing device at least comprises a spring whose two ends are respectively fixed to the cover body and the first cover plate, wherein when an external force is applied to the first cover plate, the When it moves relative to the second cover plate in the first direction, the spring can increase according to the area of the overlapping area between the first cover plate and the second cover plate in the first direction. The first cover plate is elongated in a large manner, and when the external force applied to the first cover plate is removed, the first cover plate can move in a first direction in a manner in which the spring releases elastic potential energy.

According to a preferred embodiment, one end of the spring is fixedly connected to a fixing block provided on the first cover plate.

According to a preferred embodiment, the cover is hinged to the box by means of hinged leaves.

According to a preferred embodiment, the collecting and nursing device further includes a first motor disposed in the box and a first traction wire whose two ends are respectively fixed to the first motor and the first cover plate.

According to a preferred embodiment, the collecting and nursing device at least comprises a pedal rotatably connected to the box body and a second pulling wire whose two ends are respectively fixed to the pedal and the first cover plate.

According to a preferred embodiment, the inner wall of the box is provided with a second roller and a fifth roller, the first roller and the second roller are parallel to each other, and the planes where the respective rotation directions are located are the same as the first roller. directions are parallel.

A filter screen assembly for a waste collection and nursing device in operating room care, the filter screen assembly is used to be installed in a box of the collection and care device, and the filter screen assembly at least comprises a filter screen and a filter screen fixedly connected. For the first gear, a baffle plate is provided on the inner wall of the box, wherein the first gear can be placed above the baffle plate in a manner that the filter screen penetrates through the opening formed on the baffle plate.

According to a preferred embodiment, a groove is formed on the baffle plate, and the opening is formed on an end surface of the groove so that an annular area defined by a ring shape is formed on the end surface.

According to a preferred embodiment, at least one third roller and at least one fourth roller are arranged on the annular area.

The waste collection and nursing device in operating room nursing provided by the utility model has at least the following advantages:

The utility model moves in a smooth motion mode by arranging the first cover plate located at the discarding opening, and in the opening mode of the cover plate, the influence on the surrounding air flow during the process of opening and closing the cover can be reduced, thereby reducing the peculiar smell in the device It also reduces the gas exchange process between the environment inside the device and the environment outside the device. At the same time, it can effectively avoid the problem that the waste directly contacts the cover plate in the prior art, which is easy to cause hygienic hidden dangers. When the waste is cleaned up, the entire cover on the device can be completely flipped open, so that the medical staff can take out the rotary filter for cleaning.

Description of drawings

1 is a schematic cross-sectional view of the collecting and nursing device of the present invention;

Figure 2 is a schematic side view of the lid of the present invention;

3 is a schematic top view of the cover of the present invention;

4 is a schematic top view of the baffle plate of the present invention;

Figure 5 is a schematic cross-sectional view of the baffle plate of the present invention;

6 is a schematic side view of the filter screen assembly of the present invention;

7 is a schematic top view of the filter screen assembly of the present invention;

8 is a schematic diagram of the connection relationship between the filter screen assembly of the present invention and the second motor;

Fig. 9 is the brief overall structure schematic diagram of the liquid collecting tank of the present invention;

Figure 10 is a schematic partial schematic diagram of the preferred first cover plate of the present invention;

Figure 11 is a schematic diagram of the connection relationship between the first motor and the cover of the present invention;

12 is a schematic diagram of a brief connection relationship between the pedal and the cover of the present invention; and

Fig. 13 is a schematic diagram of the connection between modules of the collecting and nursing device of the present invention.

List of reference signs

100: Cover 101: First cover 102: Second cover

103: First stop bar 104: Second stop bar 105: Spring

106: Cover 107: Fixed block 108: Loose-leaf

109: UV Lamp 200: Baffle 201: Third Roller

202: Fourth roller 203: Filter assembly 204: First gear

205: Filter 206: Second gear 207: Second motor

300: Box 301: The first pulling wire 302: The second pulling wire

303: The first roller 304: The second roller 305: The first motor

306: Fifth wheel 307: First fulcrum 308: Second fulcrum

309: Pedal 400: Sump 401: Universal Wheel

402: switch button

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3 , the present invention provides a waste collection and nursing device in operating room nursing. The waste collection and nursing device is at least provided with a box body 300 and a cover 100 adapted to the box body 300 . As shown in FIG. 2 , the cover 100 includes at least a second cover plate 102 . The cover 100 at least includes a cover body 106 hinged to the box body 300 . The second cover plate 102 is fastened to the cover body 106 . Two second blocking bars 104 are fixed on the second cover plate 102 . The two second blocking bars 104 are parallel to each other and are respectively disposed on two sides of the second cover plate 102 . The longitudinal extension direction of the second blocking bar 104 is parallel to the moving direction of the first cover plate 101 .

As shown in FIG. 2 , the second blocking bar 104 is provided with a first cover plate 101 in a sliding connection manner. The first cover plate 101 can move back and forth along the longitudinal extension direction of the second blocking bar 104 . The cover 100 is provided with two first blocking bars 103 in a fixed manner. The longitudinal extension direction of the first blocking bar 103 is parallel to the moving direction of the first cover plate 101 . The two first blocking bars 103 are parallel to each other and are located on two sides of the first cover plate 101 respectively. The first blocking bars 103 are all located above the first cover plate 101 . When the first cover plate 101 moves along the longitudinal extension direction of the second bar 104 , the first cover body 101 and the second cover plate 102 at least partially overlap. Therefore, during the movement of the first cover plate 101 , no gap will remain between the first cover body 101 and the second cover body 102 . When the first cover plate 101 moves along the longitudinal extending direction of the second blocking bar 104 , and in the longitudinal extending direction of the second blocking bar 104 , the first cover body 101 and the second cover body 102 are corresponding to each other. The distance between the ends away from each other is less than the sum of the length of the first cover body 101 and the length of the second cover body 102 . Wherein, the sum of the length of the first cover body 101 and the length of the second cover body 102 is greater than the length of the box body 300 in the longitudinal extension direction of the second blocking bar 104, so that the first cover body 101 is always kept at the The box body 300 moves up without being separated from the box body 300 , and a part of the inner space of the box body 300 can be exposed through the relative sliding of the first cover body 101 .

At least one fixing block 107 is fixed on the first cover plate 101 . At least one spring 105 is disposed on the first cover plate 101 . The spring 105 is used to drive the first cover body 101 to return. Two ends of the spring 105 are respectively fixed to the fixing block 107 and the cover 106 . When an external force is applied to the first cover plate 101 , the spring 105 is in a stretched state so that the first cover plate 101 moves in a direction close to the second cover body 102 . When the external force applied to the first cover plate 101 is removed, the first cover body 101 can move in a direction away from the second cover body 102 in a manner in which the spring 105 releases elastic potential energy. That is, the first cover body 101 is driven to reset, so that the cover 100 located on the box body 300 is in a closed state, and the inside of the box body 300 is isolated from the outside thereof. Aiming at the problem in the prior art that when the weight of the waste thrown to the cover plate is relatively light, the cover plate cannot be driven to rotate and the waste cannot be collected smoothly. A cover plate 101, capable of collecting wastes of different qualities, and avoiding the relative movement of the box cover during the process of opening and closing the box cover in the prior art, which will accelerate the flow of surrounding air and accelerate the dispersion of odors or microorganisms in the collection box Into the air, it also solves the problem of contaminating the outer surface of the tank cover with waste in the prior art.

A first pulling wire 301 and a second pulling wire 302 are fixed on the end of the first cover plate 101 . The first traction wire 301 is used to electrically control the relative movement of the first cover plate 101 . The second pulling wire 302 is used to manually control the relative movement of the first cover plate 101 . Two ends of the first pulling wire 301 are respectively connected to the first cover plate 101 and the first motor 305 . Two ends of the second pulling wire 302 are respectively connected to the first cover plate 101 and the pedal 309 . When the external force drives the first pulling wire 301 or the second pulling wire 302 , the first cover plate 101 can be indirectly driven to move relative to the box body 300 .

The lid 100 is hinged to the box 300 through the hinged leaf 108 . The cover 100 is rotatably connected to the box body 300 in a manner that the cover body 106 is hinged with the loose-leaf piece 108 provided on the box body 300 . Therefore, when the waste in the box body 300 needs to be cleaned, the cover 100 can be directly opened, and the filter screen assembly 203 can be taken out for cleaning.

In a preferred manner, an ultraviolet lamp 109 is provided on the cover 100 . Further, the ultraviolet lamp 109 is arranged on the second cover plate 102. The waste in the box 300 can be sterilized under the irradiation of the ultraviolet lamp 109 .

Referring to FIG. 1 , FIG. 4 and FIG. 5 , a baffle 200 is provided in the box body 300 . The middle of the baffle plate 200 is provided with a circular opening 209 penetrating back and forth. The baffle 200 has at least two regions with non-uniform thicknesses from each other. The baffle 200 has an annular area 208 extending continuously along the circumference of the opening 209 and having an annular shape. One end surface of the annular region 208 is flush with one end surface of the baffle plate 200 , and there is a height difference between the other end surface of the annular region 208 and the other end surface of the baffle plate 200 . The thickness of the annular region 208 on the baffle 200 is made smaller than the thickness of other regions on the baffle 200 .

At least one third roller 201 and at least one fourth roller 202 are arranged in the annular area 208. Preferably, four third rollers 201 and four fourth rollers 202 are provided in the annular area 208. The third roller 201 is fixed in the annular area 208 in such a manner that the plane in which the rotation direction of the third roller 201 is parallel to the plate surface of the baffle 200 . Preferably, the projections of the third roller 201 and the opening 209 on the baffle 200 in a direction perpendicular to the plate surface of the baffle 200 intersect with each other. Therefore, it can be ensured that the rotating filter mesh is in contact with the third roller 201 instead of the baffle 200 during its rotation.

The plane on which the rotation direction of the fourth roller 202 is located is perpendicular to the plate surface of the baffle 200 . The plane on which the rotation direction of the fourth roller 202 is located is parallel to the mid-perpendicular line where the center of the opening 209 is located. The fourth roller 202 is convex relative to the end surface of the baffle 200 . This ensures that the filter screen assembly 203 is in contact with the third roller 201 instead of the baffle 200 during the rotation.

As shown in FIG. 6 and FIG. 7 , the filter screen assembly 203 at least includes a filter screen 205 and a first gear 204 fixed to the filter screen 205 and in the shape of a ring. The shape of the filter net 205 is defined by a cylindrical shape whose one end is open. Preferably, the shape of the filter mesh 205 can be cylindrical or spherical, and is cylindrical as shown in FIG. 6 and FIG. 7 . In a preferred manner, the fixed connection between the first gear 204 and the filter screen 205 may be that the opening of the filter screen 205 is sleeved into the through hole opened on the first gear 204, and then screwed or welded. The opening of the filter screen 205 and the first gear 204 are fixed. When the filter screen assembly 203 is placed on the baffle 200, due to the fourth roller 202, the lower surface of the first gear 204 on the filter screen assembly 203 abuts on the fourth roller 202, so that the fourth roller 202 Provide a vertical support force for the filter screen assembly 203, the fourth roller 202 is used to isolate the filter screen assembly 203 from the baffle 200, and the outer wall of the filter screen in the filter screen assembly 203 is in contact with the third roller 201. , the third roller 201 provides a horizontal support force for the filter mesh assembly 203, the third roller 201 is used to isolate the part of the filter mesh assembly 203 passing through the opening 209 and the inner wall of the opening 209. 201 and the fourth roller 202 cooperate with each other to provide support for the filter screen assembly 203 to rotate relative to the baffle 200 .

As shown in FIG. 1 and FIG. 8 , the inner wall of the box body 300 is provided with a second motor 207 in a fixed manner. The output end of the second motor 207 is provided with a second gear 206 . The second gear 206 can rotate relative to the box 300 in a manner of turning on the second motor 207 . The second gear 206 is meshed with the first gear 204 . Therefore, when the second motor 207 drives the second gear 206 to rotate, the first gear 204 can be driven to rotate by the second gear 206 one after another, and finally the entire filter screen assembly is rotated by the second motor 207 . Both the angular speed and the rotation time of the filter screen assembly 203 can be controlled in the switch button 402 . The utility model can set the cooperative connection between the filter screen assembly and the box body, so that the other parts of the filter screen can be removed when the part of the filter screen exposed directly under the discarding opening already contains a lot of waste. It is transferred to just below the discarding opening for use, so that the thrown waste can not only be concentrated on a certain area of the filter screen, and it is convenient for medical staff to operate quickly. This design prevents the waste from falling into the collection box from the fixed side in the prior art, causing the waste to accumulate on one side of the collection box, wasting the accommodation space of the box, and even requiring people to shake the collection box manually to remove the waste inside. Scattered distribution.

As shown in FIG. 1 and FIG. 9 , the box body 300 is provided with an opening, and the liquid collecting tank 400 set as a drawer can be put into the box body 300 to collect the dripping from the filter screen assembly 203 above the liquid collecting tank 400 liquid. This solid-liquid separation method can timely recycle the waste liquid on the waste.

As shown in FIG. 1 , FIG. 10 and FIG. 11 , the first motor 305 is fixed to the inner wall of the box body 300 . When the first motor 305 is turned on to drive the first traction wire 301 to gradually wind up on the third roller 201, since both ends of the first traction wire 301 are connected to the first cover 101 and the first motor 305 respectively, the winding The first pulling wire 301 drives the first baffle 200 to move relatively. The parameters of the first motor 305 are controlled by the switch button 402 .

As shown in FIG. 1 , FIG. 10 and FIG. 12 , a pedal 309 is provided below the liquid collecting tank 400 . One end of the first cover plate 101 is connected with a second pulling wire 302 . After one end of the second traction wire 302 passes through the first roller 303 and the fifth roller 306 successively, the end is fixed to one end of the pedal 309 . The pedal 309 is rotatably attached to the inner wall of the case 300. The pedal 309 is rotatably connected to the box body 300 through a rotating shaft located at the second fulcrum 308 on the board body, so that the pedal 309 can rotate around the second fulcrum 308, and the rotation of the pedal 309 is similar to a seesaw. The end of the pedal 309 connected to the second traction wire 302 is placed on the first fulcrum 307 , and is supported and limited by the first fulcrum 307 . The other end of the pedal 309 is used for the user to step on with the foot and the end extends out of the box body 300 . In this way, an external force can be exerted on one end of the pedal 309 by stepping on the foot, and the pedal 309 can be driven to rotate around the second fulcrum 308, and the other end of the pedal 309 can be separated from the first fulcrum 307, thereby pulling the second traction wire 302. , the first cover body 106 connected with the second pulling wire 302 is successively pulled to move. When the user removes the external force exerted on the end of the pedal 309, the other end of the pedal 309 moves downward and rests on the first fulcrum 307, and the traction force of the pedal 309 on the second traction wire 302 gradually decreases , the spring 105 releases the elastic potential energy and drives the first baffle 200 to return to the initial position. By setting the pedal 309 to control the opening and closing of the inside of the box 300, the user can also touch the cover 100 without using hands when the device has no power supply (eg, the battery is dead, it is inconvenient to connect to the power supply, etc.). Then the inside of the box 300 can be opened.

As shown in FIG. 1 and FIG. 9 , a plurality of switch buttons 402 are provided on the outer wall of the box body 300 . As shown in FIG. 13 , which is a schematic diagram of connection between modules, a plurality of switch buttons 402 respectively control the operation of the first motor 305 , the second motor 207 and the ultraviolet lamp 109 . For example, both the first motor 305 and the second motor 207 are connected in a reverse order to control the forward and reverse rotation of the motors. When the reverse order switch (ie the switch button 402) is turned to three different positions of forward, stop and reverse, it can control The corresponding motor rotates forward or reverse or stops.

In a preferred manner, the switch button 402 is further provided with a plurality of indicator lights, and the plurality of indicator lights correspond to the power supply, the first motor 305 , the second motor 207 and the ultraviolet lamp 109 . When the power is turned on, or when the first motor 305, the second motor 207 and the ultraviolet lamp 109 are working, the corresponding indicator lights will light up to indicate that the corresponding components are working.

The use of the device is as follows: when the medical staff needs to discard the medical waste and approach the device, the first motor 305 is controlled to rotate through the switch button 402 corresponding to the first motor 305 on the switch button 402, and the first motor 305 The first cover plate 101 is driven to move by the first pulling wire 301, the overlapping area between the first cover plate 101 and the second cover plate 102 gradually increases, and a waste disposal opening is formed above the device, through which Discard the opening, the medical staff throws the waste into the filter net in the box 300, the liquid on the waste is separated by the filter net under the action of its own gravity, and is collected into the liquid collecting tank 400 located under the filter net middle. Preferably, activated carbon particles, impregnated activated carbon fibers, activated carbon sponges, etc. are used as raw materials for the live filter, such as various filters provided by Nantong Hengjia Environmental Technology Co., Ltd. in the prior art with both filtering and odor removal. In the process of recycling the waste, the filter mesh can effectively absorb odors, and when the part of the filter mesh exposed directly under the disposal opening already contains a lot of waste, the filter mesh can be driven by the second motor 207 It rotates relative to the box body 300 under the action, and transfers the other parts of the filter screen to the right under the discarding opening for use, so that the thrown waste can not only be concentrated on a certain area of the filter screen, and maximize the Using its accommodating space, the volume ratio of the box body 300 is increased. Not only the discarded wastes are scattered on the filter net, but also the ultraviolet lamp 109 located above the filter net can more effectively sterilize it, which increases the number of wastes that can receive the light irradiated by the ultraviolet lamp 109. receiving area. As another preferred embodiment, when the power source is unavailable, the user can still open the device by stepping on the pedal 309, so that a waste disposal opening is formed above it. For the collection device in the prior art, the middle part of the cover plate is hinged to the opening of the collection box, so that each rotation of the cover plate is similar to the stirring action, and the air flow around the collection box and inside the collection box is accelerated, When using the waste collection and care device, there are problems that the odor in the collection box is dissipated, or the environment with relatively dense flora in the environment of the box is leaked into the surrounding environment. The first cover plate 101 is provided with a smooth motion mode, and the opening mode of the cover plate can reduce the influence on the surrounding air flow during the process of opening and closing the cover 100, thereby reducing the emission of peculiar smell in the device and avoiding the inside of the device. The environment enters the environment outside the device, and at the same time, it can prevent waste from contaminating the surface of the cover plate. The collection device provided by the utility model is especially aimed at the collection of wastes contaminated with liquids such as excrement with a pungent odor during intestinal obstruction surgery. In the odor collection device, the unavoidable residual liquid requires medical staff to treat with medical supplies, and the treated medical supplies form wastes with pungent odor. When the waste contained in the device needs to be cleaned, the entire cover 100 on the device can be completely turned over to open, so that the medical staff can take out the rotary filter for cleaning, and the liquid collection tank located under the filter 400 is a drawer-type structure, which can be pulled out by a drawer-type pulling action for cleaning. Through the universal wheel 401 provided at the bottom of the box body 300, the universal wheel 401 is a universal wheel with braking function that is conventionally arranged on the swivel chair. During the operation and nursing process, the medical staff can conveniently move the device to the place where it needs to be used. Once in position, use the brake pads to secure the swivel wheel. For example, a universal wheel with a braking function in the device provided by the patent document with the publication number CN209326523U on August 30, 2019.

It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the scope of the present invention. into the scope of protection of the present invention. It should be understood by those skilled in the art that the description of the present utility model and the accompanying drawings are illustrative rather than limiting to the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. Waste collection and nursing device in operating room nursing, at least comprising a box body (300) and a first cover plate (101), characterized in that the collection and nursing device further comprises a second cover plate (102) positioned on the open end surface of the box body (300), the first cover plate (101) is connected to the second cover plate (102) in a sliding way, wherein,

the first cover plate (101) can move along a first direction relative to the second cover plate (102) and enables the area of a region where the first cover plate (101) and the second cover plate (102) are overlapped in the first direction to be increased or decreased, and the box body (300) is in a closed shape under the condition that the area of the region is the minimum value.

2. Collection and care device according to claim 1, characterized in that it comprises at least a spring (105) fixed at both ends to the cover (106) and to the first cover plate (101), respectively, wherein,

when an external force is applied to the first cover plate (101) and the first cover plate (101) is moved in a first direction relative to the second cover plate (102), the spring (105) can be extended so that the area of the region between the first cover plate (101) and the second cover plate (102) that overlap each other in the first direction increases, and when the external force applied to the first cover plate (101) is removed, the first cover plate (101) can be moved in the first direction so that the spring (105) releases elastic potential energy.

3. A collection and care device according to claim 2, characterized in that one end of said spring (105) is fixed to a fixing block (107) provided on said first cover plate (101).

4. A collection and care device according to claim 3, characterized in that the lid (100) is hinged to the box (300) by means of a flap (108).

5. The collection and nursing device as claimed in claim 4, further comprising a first motor (305) disposed in the housing (300) and a first pulling wire (301) having two ends respectively connected to the first motor (305) and the first cover plate (101).

6. The collecting and nursing device as claimed in claim 5, characterized in that it comprises at least a pedal (309) rotatably connected to the housing (300) and a second traction wire (302) having two ends respectively connected to the pedal (309) and the first cover plate (101).

7. Collecting and nursing device according to claim 6, characterized in that said box (300) has a first roller (303) and a second roller (304) arranged on its internal wall, said first roller (303) and said second roller (304) being parallel to each other and the plane of their rotation directions being parallel to said first direction.

8. A filter screen assembly for a waste collection and nursing device in operation room nursing, characterized in that the filter screen assembly (203) is used for being installed in a box body (300) of the collection and nursing device according to one of the preceding claims, the filter screen assembly (203) at least comprises a filter screen (205) and a first gear (204) fixedly connected with the filter screen (205), a baffle (200) is arranged on the inner wall of the box body (300), wherein the first gear (204) can be arranged above the baffle (200) in a manner that the filter screen (205) penetrates through an opening (209) formed in the baffle (200).

9. A filter screen assembly according to claim 8, wherein the baffle (200) is provided with a recess, the opening (209) being provided in an end surface of the recess and defining an annular region (208) of annular shape in the end surface.

10. A filter screen assembly according to claim 9, wherein at least one third roller (201) and at least one fourth roller (202) are provided on the annular region (208).

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