WO2023126983A1 - Installation de salle blanche pour traitement de patient et interventions chirurgicales générales - Google Patents

Installation de salle blanche pour traitement de patient et interventions chirurgicales générales Download PDF

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Publication number
WO2023126983A1
WO2023126983A1 PCT/IN2022/051151 IN2022051151W WO2023126983A1 WO 2023126983 A1 WO2023126983 A1 WO 2023126983A1 IN 2022051151 W IN2022051151 W IN 2022051151W WO 2023126983 A1 WO2023126983 A1 WO 2023126983A1
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WO
WIPO (PCT)
Prior art keywords
enclosure
assembly
flexible
bed
air
Prior art date
Application number
PCT/IN2022/051151
Other languages
English (en)
Inventor
Dinoj Joseph
Rupesh Ghyar
Bhallamudi Ravi
Original Assignee
Indian Institute Of Technology Bombay
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
Application filed by Indian Institute Of Technology Bombay filed Critical Indian Institute Of Technology Bombay
Publication of WO2023126983A1 publication Critical patent/WO2023126983A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G10/00—Treatment rooms or enclosures for medical purposes
    • A61G10/02—Treatment rooms or enclosures for medical purposes with artificial climate; with means to maintain a desired pressure, e.g. for germ-free rooms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G10/00—Treatment rooms or enclosures for medical purposes
    • A61G10/005—Isolators, i.e. enclosures generally comprising flexible walls for maintaining a germ-free environment

Definitions

  • This invention relates to the field of biomedical engineering.
  • this invention relates to a clean room assembly for patient treatment and general surgical procedures.
  • Burns are also a leading cause of morbidity; millions who survive suffer from lifelong disability and disfigurements with resulting emotional trauma and stigma.
  • the treatment of bums is very expensive and, more often than not, results in deformity, disfigurement, and disability and takes form of a pressing social issue. It is beyond the reach of a common man who actually needs it. It has the potential of wrecking any stable family.
  • JP2018140262A there is disclosure of a self- contained sterile surgical environment; which is very specific for a body part and an entire patient cannot be contained.
  • the design, of this citation uses an enclosure capsule which is pressurized and gloves are provided to access the body part.
  • an assembly having a design, such that the entire body of a patient can be accessed with ease and equipment etc. can be easily integrated.
  • WO2016122435A1 there is disclosure of a portable and quickly deployable pre- sterilized isolation unit mounted on a bed enclosing a patient.
  • an enclosure is positioned on a bed by a supporting frame and access to the patient is by attached gloves.
  • the hand cuff design restricts the movement of the user which is sought to be overcome.
  • An object of the invention is to prevent cross infection during patient treatment in hospitals.
  • Another object of the invention is to provide an assembly provisioning an isolation room for patient treatment and for conducting general surgical procedures
  • Yet another object of the invention is to provide an assembly, having a design, such that access to the enclosure /assembly is easier and also consumes less floor space.
  • Still another object of the invention is to provide an assembly, having a design, such that equipment, required, can be positioned outside the assembly.
  • An additional object of the invention is to provide an assembly, having a design, such that an entire body of a patient can be accessed with ease while equipment, tools, and the like can be easily integrated.
  • a clean room assembly for patient treatment and general surgical procedures comprising:
  • each of said port consisting, essentially, of: o a flexible disc having one or more holes, on its planar surface, of one or more diameters, said flexible disc having a first splice across the disc, said flexible disc having a second splice cutting across each of said one or more holes, said holes being configured to receive cables and / or tubes; o a circumferential ring, being a flexible circular slotted frame, configured to receive said flexible disc such that an external circumference of said flexible disc corresponds to an internal circumference of said circumferential ring such that said circumferential ring, circumferentially ensconces, said flexible disc; and
  • one or more waist cuffs consisting, essentially, of: o at least one flexible member positioned linearly with respect to at least one side of said bed, and adapted to be flexed around a user’ s body to limit air infiltration to said enclosure.
  • said assembly comprises one or more two-way openable material transfer boxes attached at relatively shorter front end of said enclosure to allow transfer or items in and out of said enclosure.
  • said assembly comprises an instrument transfer box, being a two-way box, attached on to an operative rear end of said enclosure, said box being configured to be opened from inside as well as from outside.
  • said enclosure is connected to a pressurised air purifier configured to maintain a pressure, selected from a positive pressure or a negative pressure, inside said enclosure.
  • said enclosure comprises exhaust ports to exhaust air outside said enclosure.
  • said assembly comprises wing-shaped top hinged doors being part of said enclosure, said hinged doors being hinged laterally with respect to said enclosure and said bed in said enclosure.
  • said assembly comprises a zipper, on a wall of said enclosure, in connection with said circumferential ring.
  • said circumferential ring comprises plugs configured to plug unused holes from said one or more holes.
  • said more waist cuffs consists, essentially, of an air tight seal, said air tight seal being made by using a ‘Reuleaux trianglular’ shaped flexible member, in that, a geometric member being attached to an enclosure frame with split air lock design having:
  • one or more waist cuffs consists, essentially, of:
  • one or more waist cuffs consists, essentially, of:
  • a hinged rigid / flexible rod configured to flex and allow a user to move sideways, in said enclosure, to a next segment.
  • said enclosure is a flexible enclosure, in that, - a frame, of said enclosure, being made with highly flexible material;
  • said enclosure is a flexible enclosure, in that,
  • FIGURE 1 illustrates a view enclosure, being a clean room assembly for patient treatment and general surgical procedures, of this invention
  • FIGURE 2 illustrates another view enclosure, being a clean room assembly for patient treatment and general surgical procedures, of this invention
  • FIGURE 3 illustrates another view enclosure, being a clean room assembly for patient treatment and general surgical procedures, of this invention
  • FIGURE 4 illustrates another view enclosure, being a clean room assembly for patient treatment and general surgical procedures, of this invention
  • FIGURE 5 illustrates various cable / tube entry ports
  • FIGURE 6 illustrates a circular slotted frame for the various cable / tube entry ports of FIGURE 5;
  • FIGURE 7 illustrates various tubes being inserted through holes on a disc
  • FIGURE 8 illustrates various cable / tube entry ports of a flexible disc with holes of various diameters
  • FIGURE 9 illustrates various cable / tube entry ports of a flexible disc with holes of various diameters
  • FIGURE 10 illustrates another embodiment, of this invention, achieved using two stretchable sheets
  • FIGURE 11 illustrates a type of waist cuff designed to minimize air infiltration
  • FIGURE 12 illustrates a type of waist cuff designed to minimize air infiltration
  • FIGURE 13 illustrates a type of waist cuff designed to minimize air infiltration
  • FIGURE 14 illustrates a type of waist cuff designed to minimize air infiltration
  • FIGURE 15 illustrates an air seal using a flexible member
  • FIGURE 16 illustrates a type of waist cuff designed to minimize air infiltration
  • FIGURE 17 illustrates a stretchable air seal fabric
  • FIGURE 18 illustrates a type of waist cuff designed to minimize air infiltration
  • FIGURE 19 illustrates one, of various, type/s of opening/s on the sides of enclosure of FIGURE 1;
  • FIGURE 20 illustrates one, of various, type/s of opening/s on the sides of enclosure of FIGURE 1;
  • FIGURE 21 illustrates one, of various, type/s of opening/s on the sides of enclosure of FIGURE 1;
  • FIGURE 22 illustrates one, of various, type/s of opening/s on the sides of enclosure of FIGURE 1;
  • FIGURE 23 illustrates the embodiment of FIGURE 1 made with a flexible enclosure
  • FIGURE 24 illustrates the embodiment of FIGURE 1 made with a flexible enclosure
  • FIGURE 25 illustrates the embodiment of FIGURE 1 made with a flexible enclosure
  • FIGURE 26 illustrates a patient on a bed in the enclosure of FIGURE 1 ;
  • FIGURE 27 illustrates a tray, for keeping instruments, in the enclosure of FIGURE 1;
  • FIGURE 28 illustrates flexible transparent curtains overlapped with respect to each other in the enclosure of FIGURE 1 ;
  • FIGURE 29 illustrates wing- shaped top hinged doors designed as a part of the main enclosure
  • FIGURE 30 illustrates a user, in the enclosure of FIGURE 1.
  • the assembly comprises an enclosure (1A) which is mounted on to a bed (11 A) or on a similar structure enclosing the bed (11) and its occupant (33) (patient).
  • the base of the assembly (1A) is also covered with a fabric or a plastic sheet type material and the bed (11 A) can be put over or under the fabric or a plastic sheet type material; this makes the assembly sealed from all sides.
  • transparent segments of rolling curtains (12) are placed at the longer sides of the bed (11), in order to access the patient. The ends of these curtains overlap (19) each other so as to minimize air infiltration through the gaps. If these curtains (12) are rolled up, corresponding area of bed (11 A) can be accessed.
  • the entire bed (11 A) can be accessed.
  • the curtains (12) can be raised/ rolled up according to the height of a nursing staff / doctor (3) (user), entering the assembly (1A).
  • Traditional curtain rolling and ratchet based / friction based locking mechanisms are ideal for positioning the curtains (12) in place. Through this opening, the patient (33) can be moved out, as well, if required.
  • the assembly comprises additional doors (1) (Wing door) which opens like a wing to either side of the assembly / enclosure (1A) which can be used to get control of air infiltration while curtains (12) are opened.
  • the wing door type design ensures sideways mobility of user along with controlling infiltration.
  • the assembly comprises a two-way openable material transfer boxes (34) attached at shorter front (1C) end of the enclosure such that medicines / food / instruments / other materials can be transferred in and out of the enclosure (1A) through the same.
  • the instruments, equipment, cables, or tubes, which need to be attached to the patient, is inserted through special cable/tube entry ports at the rear end (IB) of the enclosure.
  • IB rear end
  • the unit consists of an enclosure (1A, Fig (1)) which is connected to an air purifier (5), the air purifier (5) maintains a positive pressure (or negative pressure if necessary) operation.
  • the entire unit is assembled over a bed (11 A); thus, enclosing the patient (16). This maintains the patient in a clean positive pressure environment thus eliminating infiltration of contaminated outside air.
  • the inside air will be exhausted out of the unit through exhaust ports (18) enabled with fine air filters eliminating microbes and foul order, if any.
  • the equipment tubing and wiring, and the like are routed in to the enclosure through a specially designed cable / tube entry ports (9).
  • These ports (9) permit cable / tube to enter in to the enclosure (1A) without air infiltration since the unit positively pressurized by the air purifier possibility of air infiltrating in will be less.
  • the cable / tube entry ports (9, Fig (5)) consist of a flexible disc (22) with holes of various diameters (28).
  • the cable / tubes can be inserted through holes on the disc (22) by twisting edge (22A) of the flexible disc (22).
  • the flexible disc (22) has a first (radial) splice (22A) across the disc.
  • the flexible disc (22) has a second (circular) splice (22B) cutting across each of the holes.
  • These splices allow the flexible disc (22A) to open up at a particular hole, from the plurality of holes, in order to receive a cable / tube.
  • cables Once cables are inserted to the flexible disc (22), it is placed in a flexible circular slotted frame (25). The unused holes are plugged with flexible plugs (20) attached on to a slotted frame (25).
  • the cable consists of large size units, at the ends (e.g. oxygen face mask), zippers (23) are opened and the cable is inserted and the zipper is closed.
  • the cable / tube entry unit is be similar to what is shown in Fig (5).
  • the cable / tube entry unit (26) is attached with the main enclosure (1A) by stitching, welding, or by common textile / sheet joining methods.
  • the main enclosure (1A) can be made using woven / non-woven fabrics, plastic flexible / rigid sheets etc.
  • the front end (IB), of the assembly / enclosure has provision for cable / tube entry ports (26), Air purifier duct inlet (10), and the like, are connected.
  • instrument transfer box (14), air exhaust ports (18), and the like can be attached at the rear end (1C) of the enclosure.
  • the instrument transfer box (14) is a two-way box which is attached on to the main enclosure rear end (1C). This can be opened from inside as well as from outside; this enables to transfer any material or instruments during patient treatment. This helps in transfer of material or instrument without contaminated air infiltration.
  • the instrument transfer boxes are attached on to the enclosure by adhesive tapes or it can be permanently fixed on to the enclosure as well.
  • the inner door (34) of the instrument tray can be used as a tray for keeping the instruments if required (Fig (27)).
  • left (ID) and right (IE) sides, of the main enclosure consist of flexible transparent curtains (12) which are overlapped with respect to each other (Fig (28)). These curtains can be rolled to corresponding top rollers (17) to access the patient. Since the curtains are rolled to the top, it does not hinder patient (16) movement in and out of bed. The overlapping (19) of curtains is ensured in order to minimize air seepage in between the curtains since there is no direct connection between each curtains.
  • C-type channels / overlaps are provided on the edges of the main unit where the curtain is engaged with the main unit. Initially the curtain is lifted to the operative top by holding and lifting its handles (12A). This action makes the curtains to roll to the top by a standard spring-loaded curtain rolling mechanism.
  • the curtain (12) itself is made with material having resilience that itself will make the curtain roll to the operative top rollers. This can be either fully rolled to the top or partially rolled (Fig (28)) as per ergonomic comfort or need of the user.
  • the user closes the curtains by holding on the handles (12A).
  • the openings or closing of curtains can be made automatic as well, so the physical contact on handles can be avoided.
  • wing-shaped top hinged doors (1) are designed as a part of the main enclosure (1 A), (Fig (29)).
  • the user needs to get closer to the bed of the patient; this stretches the base stretchable fabric and creates a space for the user (Fig (30)).
  • the door (1) needs to be closed.
  • the boot strut (2) / similar mechanisms at the sides smoothens the closing of door and keeps them in place. Then the curtains will be rolled to top and patient can be accessed. Being, in this position, the user can simply move sideways if required.
  • a special type of waist cuff (4Q, 4P) is designed (Fig 16, 18).
  • One way of achieving this is by using a hinged rigid / flexible rod (13) flexes and allows the user to move sideways to a next segment. Once the user is moved after the hinged rigid / flexible rod (13) regains its initial position stretching the fabric (4).
  • the air seal fabric can be stretched using spring or elastic rope (4J) or a combination of both (13 & 4J) can be used to achieve the same effect. This ensures a tight seal between the user and the enclosure so that there is minimum possibility of air infiltration.
  • the air purifier (5) pumps extra volume of air to ensure occupants comfort and to ensure positive pressure.
  • Fig (10) represents the same effect is achieved using two stretchable sheets fig (10), (4Q, 4P).
  • one stretchable fabric (4P) is attached on to the main enclosure and other (4Q) on to the wing (1) door it can be placed at an angle (Fig (13,14)) for better ergonomics.
  • another design, for air seal is obtained by using a ‘Reuleaux trianglular’ shaped flexible member (4A), (Fig (16)).
  • a geometric member is attached to an enclosure frame (4K) and in split air lock design Fig: (15 & 16) design air seal design a first air seal (4D) is attached with the enclosure frame (4K) and a second air seal (4E) is fixed on a door (1) at a door frame (4L) of the enclosure frame (4K).
  • a bed top (11 A) is designed with an option for patient bathing, in cases where it is difficult to move the patient outside.
  • the bed top typically, can be attached with a liquid containing sheet (29 A).
  • the ends of the sheet can be attached to the extending legs (11) of the bed, by a concentric shaft type rigid member (11B).
  • the top portion of the rigid member (11B) contains a projection for attachment of a ring (29) which is attached permanently on to the sheet (29 A). This contains liquids or body spills from the patient during treatment. Also, it can be easily removed after use.
  • hooks (31) can be placed holding limbs (33) of the patient.
  • the hooks (31) attached on to frame can be used to mount mechanisms assisting physiotherapy of the patient can also be included on to the main frame.
  • the unit can be made with a flexible enclosure; here, the enclosure can be made similar to a collapsible mosquito net type design.
  • the frame (38 A), of the enclosure is made with highly flexible material like spring steel. Conduits are made, on the enclosure fabric, and the frame is inserted on to this. Up on folding the frame, on a specific way, the entire enclosure can be collapsed to small size pouch.
  • a foldable canopy (36) is made as in Fig 19, Fig 20, Fig 21, and Fig 22.
  • a flap type structure (37) is added on the foldable canopy (36).
  • a stretchable fabric (40, 40A) will be attached on to the side opening structure
  • a single stretchable fabric with a hole (39, Fig (20)), at centre, is provided with a unidirectional flap lid (41).
  • a spring or an elastic member (42) or a resilient element is added to the lid to keep it shut on exit of user.
  • This flap lid is hinged (41 A) on to the entry port
  • the construction which teaches, accessing a patient, minimizing possibility of infiltration, provisioning for cable and tube entry to the enclosure, enabling sideways movement of the user while accessing the patient without having infiltration, and the like; all also contributes to the INVENTIVE STEP of this invention.
  • the TECHNICAL ADVANCEMENT lies in at least the following aspects:
  • the assembly of this invention, consists of a portable and quickly deployable pre sterilized isolation unit (Sterile Enclosure) which can be mounted on to each bed.
  • Step Enclosure This can convert any general ward/ICU in to an isolation ward/ICU, provision for dressing the patient is also provided in the unit.
  • Special ports are designed on either sides of enclosure for medical personnel entry, through that they can access the patients for treatment as well as doing patient’s mundane activities.
  • the transfer box attached on one of its sides helps in transfer of sterile/contaminated materials in and out of the enclosure.
  • the assembly provides a clean environment for keeping the patients and doing their mundane activities. It’s also designed to function as a sterile space for dressing and conducting minor surgical procedures for such patients as well.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

L'invention concerne une installation de salle blanche pour le traitement d'un patient et des interventions chirurgicales générales, ladite installation comprenant : une enceinte (1A) montée sur un lit (11) ; des segments transparents de rideaux roulants (12) ; des portes (1) conçues pour s'ouvrir comme une aile, de chaque côté de ladite enceinte (1A) ; des orifices (9), dans ladite enceinte (1A), pour permettre le passage de câbles et/ou de tubes dans ladite enceinte (1A), chacun desdits orifices consistant essentiellement en : un disque flexible (22) destiné à recevoir des câbles et/ou des tubes ; un anneau circonférentiel (25), qui est un cadre fendu circulaire flexible (25), conçu pour recevoir ledit disque flexible (22) ; et des revers de taille (4Q, 4P) conçus pour être fléchis autour du corps d'un utilisateur pour limiter l'infiltration d'air dans ladite enceinte (1A).
PCT/IN2022/051151 2021-12-31 2022-12-31 Installation de salle blanche pour traitement de patient et interventions chirurgicales générales WO2023126983A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202121062048 2021-12-31
IN202121062048 2021-12-31

Publications (1)

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WO2023126983A1 true WO2023126983A1 (fr) 2023-07-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167603A (en) * 1967-01-05 1969-10-15 Snyder Mfg Company Inc Methods and Apparatus relating to Sealed Enclosures
US5314377A (en) * 1992-10-05 1994-05-24 Airo Clean Inc. Clean air isolation enclosure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167603A (en) * 1967-01-05 1969-10-15 Snyder Mfg Company Inc Methods and Apparatus relating to Sealed Enclosures
US5314377A (en) * 1992-10-05 1994-05-24 Airo Clean Inc. Clean air isolation enclosure

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