CN207979915U - A kind of underpants equipped with modified cleaning device - Google Patents

A kind of underpants equipped with modified cleaning device Download PDF

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Publication number
CN207979915U
CN207979915U CN201720638354.8U CN201720638354U CN207979915U CN 207979915 U CN207979915 U CN 207979915U CN 201720638354 U CN201720638354 U CN 201720638354U CN 207979915 U CN207979915 U CN 207979915U
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CN
China
Prior art keywords
pollution discharge
discharge cover
cleaning device
underpants
interconnecting piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720638354.8U
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Chinese (zh)
Inventor
黄春明
董美坤
游书毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dignity (xiamen) Medical Equipment Co Ltd
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Dignity (xiamen) Medical Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201720638354.8U priority Critical patent/CN207979915U/en
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Publication of CN207979915U publication Critical patent/CN207979915U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of underpants equipped with modified cleaning device, including:Underpants, the position that the underpants correspond to body discharges are equipped with discharge port, and the edge of the discharge port is equipped with connection component;There is host cavity, the both ends open of the pollution discharge cover interconnecting piece is equipped at the top end opening of the pollution discharge cover for contaminants-collecting apparatus, including pollution discharge cover, the pollution discharge cover, and the interconnecting piece is detachably connected with the connection component;Cleaning device, including nozzle, the nozzle are located at the inner wall of the pollution discharge cover, and the nozzle is connected to the host cavity, are used for towards user's buttocks hydro-peening.The utility model is adapted to the contaminants-collecting apparatus and cleaning device that use with underpants by setting.Excreta is artificially collected in use, removing from, more convenient health.And patient's buttocks and pollution discharge cover can also be cleaned by cleaning device, the cleaning problems after patient's excretion are solved, are had the advantages that hygienic, easy to use.

Description

A kind of underpants equipped with modified cleaning device
Technical field
The utility model is related to medical cares, in particular to a kind of underpants equipped with modified cleaning device.
Background technology
In medical treatment and nursing, often having sufferer to need due to various reasons could stool and urine under help in nursing staff.Disease The stool and urine nursing of trouble is a time-consuming, laborious and awkward job, slightly deals with improperly, must just replace the clothing of sufferer And sheet.And for the sufferer that some cannot be moved easily due to intraoperative factors, stool and urine nursing is even more to become medical care people The problem of member.Furthermore, with the process of China's aging, elderly population are more and more, many old men because cardiovascular and cerebrovascular disease, Diabetes or the factors such as have bad physiques are paralyzed in bed, and lose self-care ability.The sufferer being paralyzed in bed needs with the help of other people It could solve the problems, such as that stool and urine, stool and urine nursing become the problem in medical treatment and nursing and residential care.
The inventors of the present application found that in the prior art on solving stool and urine nursing problem, devising adult, " urine is not It is wet ", " urine pants " etc., but urine pants needs are often replaced, and human cost and economic cost are higher, increase the economy of patient Burden.And the sufferer for that cannot take care of oneself completely can only carry out in bed since it cannot voluntarily be turned over and voluntarily lift buttocks Defecation, can only carry out defecation with the help of nursing staff, and serious psychological burden is caused to paralytic.
Utility model content
The utility model provides a kind of underpants equipped with modified cleaning device, it is intended to improve at when adult patient is drained Manage inconvenient problem.
The utility model is realized in this way:
A kind of underpants equipped with modified cleaning device, including:
Underpants, the position that the underpants correspond to body discharges are equipped with discharge port, and the edge of the discharge port is equipped with connection Component;
Contaminants-collecting apparatus, including pollution discharge cover, the pollution discharge cover have host cavity, the both ends open of the pollution discharge cover, institute It states and is equipped with interconnecting piece at the top end opening of pollution discharge cover, the interconnecting piece is detachably connected with the connection component;
Cleaning device, including water pump, water tank and nozzle, the nozzle are connect by pipeline with the water pump, the water pump It is connect with the water tank, the nozzle is located at the inner wall of the pollution discharge cover, and the nozzle is connected to the host cavity, is used for direction User's buttocks hydro-peening;Several apopores, top end opening of the apopore towards the pollution discharge cover are offered on the nozzle It tilts.
Further, in the utility model preferred embodiment, the connection component includes that connector and first are magnetic Part, the connector are made of rubber or silica gel.
Further, in the utility model preferred embodiment, circular discharge port is provided with several on the connector First magnetic part being intervally arranged, the interconnecting piece are correspondingly provided with the second magnetic part being connect with first magnetic part.
Further, in the utility model preferred embodiment, first magnetic part is embedded in the connector, described Second magnetic part is embedded in the interconnecting piece.
Further, in the utility model preferred embodiment, in a ring, the connector corresponds to row to the connector Drain port opens up through-hole.
Further, in the utility model preferred embodiment, the inner peripheral of the connector is equipped with towards the company The annular protrusion of socket part protrusion;The interconnecting piece is equipped with annular groove compatible with the annular protrusion.
Further, in the utility model preferred embodiment, the pollution discharge cover is in funnel-form, the pollution discharge cover Bottom end opening is less than the top end opening of the pollution discharge cover.
Further, in the utility model preferred embodiment, the contaminants-collecting apparatus further includes negative pressure drainage list Member, the negative pressure drainage unit include aspiration pump, collecting box and drainage tube, and the aspiration pump is connected to the pollution discharge cover, described Collecting box is connect by the drainage tube with the pollution discharge cover, and the drainage tube is connected to the bottom end opening of the pollution discharge cover.
Further, in the utility model preferred embodiment, the warp of the pollution discharge cover front inner wall and axis it Between angle be less than the pollution discharge cover on rear side of inner wall warp and axis between angle.
Further, in the utility model preferred embodiment, the edge circumferential direction extension of the top end opening of the pollution discharge cover It stretches out flanging and forms interconnecting piece, the top surface of the interconnecting piece is arcwall face.
The utility model has the beneficial effects that:The utility model is easy to the easy to be de- of dirt-collecting by what above-mentioned design obtained Underpants are worn, the contaminants-collecting apparatus and cleaning device that use are adapted to underpants by setting.In use, the excreta of patient can It is directly collected by the contaminants collector being connect with underpants inner body, removes from and artificially collect excreta, more convenient health.And Patient's buttocks and pollution discharge cover can also be cleaned by cleaning device, solve the cleaning problems after patient's excretion, there is health, use Convenient advantage.
Description of the drawings
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not The restriction to range is should be considered as, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the utility model embodiment, the structural schematic diagram of cleaning device;
Fig. 2 is the stereogram of the pollution discharge cover of cleaning device shown in FIG. 1;
Fig. 3 is the sectional view of pollution discharge cover shown in Fig. 2;
Fig. 4 is the utility model embodiment, the structural schematic diagram of underpants;
Icon:Pollution discharge cover 10;Negative pressure drainage unit 20;Cleaning device 30;System controller 40;Sensing part 50;Flanging 11;Host cavity 12;Top end opening 122;Bottom end opening 121;Front inner wall 123;Rear side inner wall 124;Annular groove 13;Second Magnetic part 14;Drainage tube 21;Aspiration pump 22;Collecting box 23;Tracheae 221;Connecting tube 31;Water pump 32;Nozzle 33;Water tank 34;It is main Body portion 311;Connecting section 313;Apopore 312;Underpants 60;Discharge port 61;Connection component 70;Connector 71;First magnetic part 72;Annular protrusion 711.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality Embodiment in novel, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.Therefore, the implementation to the utility model provided in the accompanying drawings below The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of the utility model Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that term " transverse direction ", "upper", "lower", "front", "rear", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on ... shown in the drawings or position Relationship is set, is merely for convenience of describing the present invention and simplifying the description, equipment or element are not indicated or implied the indicated It must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;Can be Mechanical connection can also be electrical connection;It can be directly connected, can also can be indirectly connected through an intermediary two The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features are in direct contact, and can also not be to be in direct contact but lead to including the first and second features Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only Indicate that fisrt feature level height is less than second feature.
Referring to Fig.1 with shown in Fig. 4, to present embodiments provide a kind of underpants equipped with modified cleaning device include underpants 60, contaminants-collecting apparatus and cleaning device 30.The position that the underpants 60 correspond to body discharges is equipped with discharge port 61, the excretion The edge of mouth 61 is equipped with connection component 70.Underpants 60 are connect by connection component 70 with the contaminants-collecting apparatus so that are suffered from The excreta of person can be directly collected by the contaminants collector being connect with underpants inner body, removed from and artificially collected excreta, More convenient health.And patient's buttocks and pollution discharge cover can also be cleaned by cleaning device, it solves the cleaning after patient's excretion and asks Topic has the advantages that hygienic, easy to use.
With reference to shown in Fig. 4, contaminants-collecting apparatus includes pollution discharge cover 10, and the pollution discharge cover 10 has host cavity 12, the row 10 both ends open is covered in dirt, and interconnecting piece 11, the interconnecting piece 11 and the connection are equipped at the top end opening 121 of the pollution discharge cover Component 70 is detachably connected.
Preferably, the connection component 70 includes connector 71 and the first magnetic part 72, and the connector 71 uses rubber Or silica gel is made, and improves patient and dresses the level of comfort for using this underpants, the setting of connector is avoided to be brought excessively to patient Foreign body sensation.
Preferably, in a ring, the connector 71 corresponds to discharge port 61 and opens up through-hole, the excretion of patient the connector 71 Object enters pollution discharge cover 10 by discharge port and through-hole.The edge week of the top end opening 121 of the pollution discharge cover 10 extends outward fold Side forms interconnecting piece 11, for coordinating with connector 71.The top surface of the interconnecting piece 10 is arcwall face, more with human buttock's body Adaptation improves the comfort of wearing, ensures that excreta can be can smoothly enter into pollution discharge cover 10 by discharge port.
Preferably, discharge port 61 is provided with several first magnetic parts being intervally arranged on the connector 71 72, the interconnecting piece 11 is correspondingly provided with the second magnetic part 14 being connect with first magnetic part 72.Make pollution discharge cover 10 and connects Fitting has multiple fixed points, ensures that the two can be bonded, pollution discharge cover 10 is avoided to fall off from underpants 60.
Preferably, first magnetic part 72 is embedded in the connector 71, and second magnetic part 14 is embedded in the connection Portion 11.So that connector 71 and the face that contacts with each other of interconnecting piece 11 are smooth contact surface, can ensure smooth when the two connection Fitting, air-tightness is more preferable, and carrying out negative pressure trapped dirt for contaminants-collecting apparatus improves better negative pressure shape into environment.
First magnetic part 72 and the second magnetic part 14 are strong magnets, for example, by using ndfeb magnet, compared to ferrite The magnetic property of the magnet of the materials such as magnet, alnico, SmCo, ndfeb magnet is more superior, and ndfeb magnet can adsorb this 640 times of weight of body weight.The compactness that underpants 60 and pollution discharge cover 10 connect is effectively ensured.
The inner peripheral of the connector 71 is equipped with the annular protrusion 711 towards interconnecting piece protrusion;The interconnecting piece 11 Equipped with annular groove compatible with the annular protrusion 13.When underpants 60 and pollution discharge cover 10 connect, 711 grafting of annular protrusion In annular groove 13, the two, which is formed, to be fitted close.The sealing performance of pollution discharge cover 10 is effectively ensured, creates good negative pressure ring Border, when being aspirated to the excreta in pollution discharge cover 10 using negative pressure, what annular protrusion 313 and annular groove 314 cooperatively formed Good seal performance can effectively ensure that the suction effect of negative pressure system.
Contaminants-collecting apparatus:
Shown in referring to Fig.1, the contaminants-collecting apparatus includes pollution discharge cover 10 and negative pressure drainage unit 20, the pollution discharge cover 10 With host cavity 12, the top end opening 122 of the both ends open of the pollution discharge cover 10, the pollution discharge cover 10 is located at human body blowdown Place.The negative pressure drainage unit 20 includes aspiration pump 22, collecting box 23 and drainage tube 21, the aspiration pump 22 and the pollution discharge cover 10 connections, the collecting box 23 are connect by the drainage tube 21 with the pollution discharge cover 10, and the drainage tube 21 is connected to described The bottom end opening 121 of pollution discharge cover 10.
Excreta is discharged into pollution discharge cover 10 by patient, and aspiration pump 22, which aspirates the gas in pollution discharge cover 10, makes it generate negative pressure effect It answers, excreta is entered by drainage tube 21 in collecting box 23.The trapped dirt by way of negative pressure drainage generates the structure of negative pressure Simply, and can quick trapped dirt, avoid dirt accumulation reduce comforts of use.
Preferably, the aspiration pump 22 is connect by tracheae 221 with pollution discharge cover 10, one end connection of the aspiration pump 22 In the side wall of the drainage tube 21, can avoid blocking tracheae 221 during excreta collection.
Preferably, the drainage tube 21 is made using telescopic hose when the combinations such as pollution discharge cover 10 and underpants, trousers Obtaining pollution discharge cover 10 can flexibly move with the movement of patient, more meet use demand, even just also can in discharge process Activity will not cause excreta to leak outside.It solves existing such as chamber pot eduction gear to move using difficulty, easily cause excreta The problem of leakage.It is furthermore preferred that the drainage tube 21 uses threaded plastic hose.
With reference to shown in Fig. 2, it is preferred that pollution discharge cover 10 is in funnel-form, and the bottom end opening 121 of the pollution discharge cover 10 is less than institute The top end opening 122 for stating pollution discharge cover 10 can preferably accept excreta, and excreta is easy to glide along funnelform curved surface. Convenient for being collected excreta in collecting box 23 by drainage tube 21.The cross-sectional profiles of the top end opening 122 of pollution discharge cover 10 are The narrow shape in the wide rear end of egg circular curve, i.e. front end, and be smooth curve.Above-mentioned design can the more comfortable, conjunction with the buttocks of patient The fitting of reason.The narrow corresponding adaptation urethra in the wide rear end in front end and anus.
Preferably, the angle between the warp and the axis of 10 front inner wall 123 of the pollution discharge cover is less than the blowdown Cover the angle between the warp and the axis of 10 rear side inner walls 124.Warp is the virtual line of conception, is defined as in pollution discharge cover 10 inner walls connect the line of 10 tip edge of pollution discharge cover and 10 bottom edge of pollution discharge cover.It is intended so that backend collection excrement one Side inner wall is more gentle, excreta gentle, smooth downslide under the action of gravity and negative pressure.And front side urine flows backwards side, with Faster speed drainage, reduces the contact of the organs such as excreta and urethra, the problems such as avoiding infection.
Cleaning device 30:
Cleaning device 30 includes water supply component and nozzle 33, and the nozzle 33 is located on the inner wall of the pollution discharge cover 10, institute It states nozzle 33 to connect with the water supply component, the nozzle 33 is used for the buttocks hydro-peening towards patient.The water supply component includes Water pump 32 and water tank 34, the nozzle 33 are connect by pipeline with the water pump 32, and the water pump 32 is connect with the water tank 34. It is pressurized by water pump 32 and the water in water tank 34 is delivered to nozzle 33, and spray water outward via nozzle 33, realize cleaning work( It can so that can automatically clean buttocks and pollution discharge cover 10 after the excretion of patient.The work for reducing nursing staff, reduces the heart of patient Reason burden.
The nozzle 33 is located at the inner wall of the pollution discharge cover 10, and the nozzle 33 is connected to the host cavity 12, is used for court To user's buttocks hydro-peening.Several apopores 312 are offered on the nozzle 33, less water can be used to complete larger model The cleaning enclosed, and ensure to clean up.Preferably, there is 3-6 apopore 312, and spray hydraulic pressure with 0.25MPa-0.35MPa It is advisable, water temperature is advisable with 45-55 DEG C, ensures the cleanliness factor and comfort level of cleaning.It is furthermore preferred that several 312 edges of the apopore The warp direction uniform intervals of the inner wall of the pollution discharge cover 10 are arranged.
Preferably, nozzle 33 is located on the front inner wall 123 of pollution discharge cover 10, and water spraying direction is from the front side of patient to anus position Injection is set, with excrement staggered positions, excrement is avoided to block apopore 312.
The top end opening 122 of the apopore 312 towards the pollution discharge cover 10 tilts so that the angled injection of water to anus Place, improves the comfort level of cleaning.Preferably, the elevation angle of the axis relative level of the apopore 312 is 40 ° to 60 °.It is more excellent Choosing, the elevation angle of the axis relative level of the apopore 312 is 45 ° to 55 °, both can guarantee the comfort level of jet cleaning, Also it can ensure the clean level of cleaning to greatest extent.Wherein, the elevation angle refers to when being horizontally arranged pollution discharge cover 10, apopore 312 Angle between axis and horizontal plane.
The nozzle 33 is made into integration, and the nozzle 33 includes main part 311 and connecting section 313, the main part 311 Vessel is inside opened up, the connecting section 313 is connected to the main part 311, and the main part 311 is towards the host cavity 12 1 The apopore 312 is offered on side, the apopore 312 is connected to the vessel.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of underpants equipped with modified cleaning device, which is characterized in that including:
Underpants, the position that the underpants correspond to body discharges are equipped with discharge port, and the edge of the discharge port is equipped with connection component;
Contaminants-collecting apparatus, including pollution discharge cover, the pollution discharge cover have host cavity, the both ends open of the pollution discharge cover, the row It is equipped with interconnecting piece at the top end opening of dirt cover, the interconnecting piece is detachably connected with the connection component;
Cleaning device, including water pump, water tank and nozzle, the nozzle are connect by pipeline with the water pump, the water pump and institute Water tank connection is stated, the nozzle is located at the inner wall of the pollution discharge cover, and the nozzle is connected to the host cavity, is used for direction Person's buttocks hydro-peening;Several apopores are offered on the nozzle, the top end opening of the apopore towards the pollution discharge cover tilts.
2. the underpants according to claim 1 equipped with modified cleaning device, which is characterized in that the connection component includes Connector and the first magnetic part, the connector are made of rubber or silica gel.
3. the underpants according to claim 2 equipped with modified cleaning device, which is characterized in that surround on the connector Discharge port is provided with several first magnetic parts being intervally arranged, and the interconnecting piece is correspondingly provided with to be connected with first magnetic part The second magnetic part connect.
4. the underpants according to claim 3 equipped with modified cleaning device, which is characterized in that first magnetic part is embedding Enter the connector, second magnetic part is embedded in the interconnecting piece.
5. the underpants according to claim 2 equipped with modified cleaning device, which is characterized in that the connector is in ring Shape, the connector correspond to discharge port and open up through-hole.
6. the underpants according to claim 5 equipped with modified cleaning device, which is characterized in that the inner circumferential of the connector Edge is equipped with the annular protrusion towards interconnecting piece protrusion;It is recessed that the interconnecting piece is equipped with annular compatible with the annular protrusion Slot.
7. the underpants according to claim 1 equipped with modified cleaning device, which is characterized in that the pollution discharge cover is in leakage Bucket-shaped, the bottom end opening of the pollution discharge cover is less than the top end opening of the pollution discharge cover.
8. the underpants according to claim 1 equipped with modified cleaning device, which is characterized in that the contaminants-collecting apparatus Further include negative pressure drainage unit, the negative pressure drainage unit includes aspiration pump, collecting box and drainage tube, the aspiration pump with it is described Pollution discharge cover is connected to, and the collecting box is connect by the drainage tube with the pollution discharge cover, and the drainage tube is connected to the blowdown The bottom end opening of cover.
9. the underpants according to claim 1 equipped with modified cleaning device, which is characterized in that on front side of the pollution discharge cover Angle between the warp and axis of wall is less than the angle on rear side of the pollution discharge cover between the warp and axis of inner wall.
10. the underpants according to claim 1 equipped with modified cleaning device, which is characterized in that the top of the pollution discharge cover It extends outward flanging the edge week of end opening and forms interconnecting piece, the top surface of the interconnecting piece is arcwall face.
CN201720638354.8U 2017-06-03 2017-06-03 A kind of underpants equipped with modified cleaning device Expired - Fee Related CN207979915U (en)

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Application Number Priority Date Filing Date Title
CN201720638354.8U CN207979915U (en) 2017-06-03 2017-06-03 A kind of underpants equipped with modified cleaning device

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Application Number Priority Date Filing Date Title
CN201720638354.8U CN207979915U (en) 2017-06-03 2017-06-03 A kind of underpants equipped with modified cleaning device

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CN207979915U true CN207979915U (en) 2018-10-19

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109718000A (en) * 2019-01-16 2019-05-07 中国人民解放军陆军军医大学第一附属医院 A kind of defecation protective device
CN109938433A (en) * 2019-05-06 2019-06-28 吴建涛 A kind of convenient nursing trousers
CN111248549A (en) * 2020-03-05 2020-06-09 李阳庭 High-level protective clothing convenient for diet and excretion and capable of achieving biological safety of circulating wind under micro-positive pressure
CN111296918A (en) * 2020-03-05 2020-06-19 孔维连 High-level protective clothing with micro-positive pressure circulating wind biological safety

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109718000A (en) * 2019-01-16 2019-05-07 中国人民解放军陆军军医大学第一附属医院 A kind of defecation protective device
CN109718000B (en) * 2019-01-16 2020-09-01 中国人民解放军陆军军医大学第一附属医院 Defecation protective device
CN109938433A (en) * 2019-05-06 2019-06-28 吴建涛 A kind of convenient nursing trousers
CN111248549A (en) * 2020-03-05 2020-06-09 李阳庭 High-level protective clothing convenient for diet and excretion and capable of achieving biological safety of circulating wind under micro-positive pressure
CN111296918A (en) * 2020-03-05 2020-06-19 孔维连 High-level protective clothing with micro-positive pressure circulating wind biological safety

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Granted publication date: 20181019

Termination date: 20200603