CN103083138B - Manual lifting sling device - Google Patents

Abstract

The invention relates to a manual lifting sling device, comprising: a bottom support part for supporting the buttocks and the legs of the patient; a rear support portion in inclined angular engagement with the bottom support portion for supporting the patient's back; a left side blocking part and a right side blocking part which respectively limit the patient at the left side and the right side, wherein the left side blocking part and the right side blocking part are simultaneously jointed with the bottom supporting part and the rear side supporting part; and at least two lifting handles are arranged on the left side blocking part and the right side blocking part. The fabric used in the manual lifting sling device is a woven or non-woven fabric made of a non-biodegradable material or a biodegradable polymer material. The manual lifting sling device provided by the invention has the advantages of simple structure, reasonable design, high comfort level and low cost, and can be configured for each patient to be used for a limited number of times.

Description

Manual lifting sling

technical field

The present invention relates to lifting devices and, more particularly, to a manual lifting sling device.

Background technique

Hospitals often use lifting sling devices to move patients or people with reduced mobility. The key issues in using lifting sling devices are to prevent accidents and to avoid cross-infection between patients. The earliest hoisting sling device used was made of textile fabric, and the structure was relatively complicated, and the design was not reasonable enough, which made the product cost high.

Therefore, these lifting sling devices need to be reused due to cost issues, and thus inevitably prone to cross-infection. The washing process for slings made of textile fabrics does not always kill the infection-causing organisms, especially when washed at temperatures that the slings can withstand. Thus when textile slings are washed or even dried at a temperature higher than the sling can withstand in an attempt to kill all infectious organisms, damage to the sling will result. Slings can also be lost or damaged in transit between the point of use and the laundering location, so it is necessary to have enough spare slings available to the patient while some are being laundered or transported. Some hospitals have banned the use of slings due to the resulting adverse effects. If the cost of the lifting sling device can be reduced, it will be beneficial to popularize the one-time or limited-use lifting sling device, thereby being able to solve the problem of cross-infection among patients. Therefore, how to effectively develop a hoisting sling device with reasonable design and low cost is an urgent problem to be solved at present.

Contents of the invention

The technical problem to be solved by the present invention is to provide a manual lifting sling device for the defects of the existing lifting sling device which has a complex structure and high cost.

The technical scheme adopted by the present invention to solve its technical problems is: to construct a kind of manual lifting sling device, including being made of fabric:

A bottom support for supporting the patient's buttocks and legs;

a rear support for supporting the patient's back engaged at an oblique angle with the bottom support;

A left blocking part and a right blocking part respectively limit the position of the patient on the left and right sides, and both the left blocking part and the right blocking part are engaged with the bottom supporting part and the rear supporting part at the same time; and the Both the left blocking part and the right blocking part are provided with at least two lifting handles.

In the manual lifting sling device according to the present invention, the fabric is a woven fabric or a non-woven fabric.

In the manual lifting sling device according to the present invention, the edges of the bottom supporting part, the rear side supporting part, the left blocking part and the right blocking part are folded and/or reinforced, and integrated by sewing.

In the manual lifting sling device according to the present invention, the bottom support part and the rear side support part are cut to conform to the body shape of a human body, and are provided with folds.

In the manual lifting sling device according to the present invention, the fabric is provided with a mark.

In the manual lifting sling device according to the present invention, the fabric is formed by laminating one or more layers of woven or non-woven films.

In the manual lifting sling device according to the present invention, a breathable non-biodegradable or biodegradable film is attached to one or both sides of the fabric.

In the manual lifting sling device according to the present invention, the fabric is made of non-biodegradable material including polypropylene, polyethylene, polyethylene terephthalate or polyamide.

In the manual lifting sling device according to the present invention, the textile fabric is made of a biodegradable polymer material, and the biodegradable polymer material is polylactic acid, polyhydroxyalkanoate, polyhexamethylene Acid - Butylene terephthalate, polybutylene succinate, poly-beta-hydroxybutyrate, or a blend of several of these materials.

In the hand lift sling device according to the present invention, the fabric is made of thermally bonded non-biodegradable or biodegradable randomly oriented fibers.

In the manual lifting sling device according to the present invention, the non-woven fabric is made of a continuous filament web or a short fiber web formed by hydroentanglement or needle punching.

In the manual lifting sling device according to the present invention, the non-woven fabric is made of a continuous filament web or a short fiber web bonded with non-biodegradable or biodegradable chemicals, and the chemical Substances include latex adhesives or adhesives.

The present invention also provides a method for preventing cross-infection between patients being carried, each patient having a dedicated manual lifting sling device as described above.

Implementing the manual lifting sling device of the present invention has the following beneficial effects: the manual lifting sling device provided by the present invention is simple in structure, reasonable in design, high in comfort, and low in cost and can be equipped with a dedicated manual lifting sling device for each patient for limited use.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Figure 1 is a perspective view of a manual lifting sling device according to a preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of the use state of the manual lifting sling device according to the preferred embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The invention relates to a manual lifting sling device for supporting a patient's body for manual transport. In some cases, this manual lifting sling unit can also be used as a stretcher. The terms "manual lifting sling device", "sling", "lifting sling" and "stretcher" are used interchangeably in the description of the present invention, and refer to a device that can be frequently used by caregivers or patient lifters. Sling or stretcher. For example, the device may be used to transport an injured patient from the scene of the incident to an adjacent ambulance, in which case it may be referred to as a stretcher. When subsequently moving the patient from the bed to another location in the hospital, the device may be referred to as a lift sling device.

The present invention also provides a method of preventing cross-infection between patients carried using manual lifting slings, i.e. the patients are lifted by two persons using non-biodegradable or biodegradable manual lifting slings, wherein each patient has Own dedicated manual lifting sling device. Preferably, each lifting sling assembly is clearly marked to clearly identify which patient it is intended for. The lifting sling can be marked with permanent ink to secure it from being used by others. Furthermore, the fabric in the lifting sling is made of a biodegradable polymer material, and it has been found that the cost of a biodegradable non-woven sling is only a fraction of the cost of a textile sling, and in most people within the acceptable range. Therefore, a dedicated sling can be configured for each person, while preventing cross-infection between patients, because the fabric material used in the manual lifting sling device is biodegradable and/or compostable, so that the sling that is discarded after use cable will not pollute the environment.

Figure 1 is a perspective view of a manual lift sling arrangement according to a preferred embodiment of the present invention. As shown in FIG. 1 , a manual lifting sling device 10 is shown comprising: a bottom support part 12 , a rear support part 11 , a left stop part 13 and a right stop part 14 made of fabric. Wherein, the bottom supporting part 12 is located at the bottom for supporting the patient's buttocks and legs. The rear support part 11 and the bottom support part 12 form an oblique angle for supporting the patient's back. The lower edge of the rear support portion 11 joins the rear edge of the bottom support portion 12 at an obtuse angle so that the patient can sit in the manual lift sling device 10 . The rear support portion 11 and the bottom support portion 12 are preferably in the shape of an isosceles trapezoid, with two longer bases joined together.

The left blocking part 13 and the right blocking part 14 limit the position of the patient on the left and right sides respectively. Both the left side stopper 13 and the right side stopper 14 are engaged with the bottom support part 12 and the rear side support part 11 at the same time. In some embodiments, the left blocking portion 13 is roughly triangular in shape, one of the bases is connected to the left waist of the bottom support portion 12 , and the other bottom is connected to the left waist of the rear support portion 11 . Similarly, the right blocking portion 14 corresponds thereto. In some other embodiments, as shown in FIG. 1 , the left blocking portion 13 is composed of two triangles respectively connected with the bottom supporting portion 12 or the rear supporting portion 11 , so as to expand the space enclosed by the manual lifting sling device 10 . The manual lifting sling device 10 is symmetrical about the central axis.

At least two lifting handles 15 are provided on the left blocking portion 13 and the right blocking portion 14 . For example, in this embodiment, a lifting handle 15 is respectively provided on the upper side and the lower side of the left blocking part 13, so as to exert force on the patient's back area and leg area respectively. Similarly, two lifting handles 15 are also provided on the right blocking portion 14 .

Preferably, the edges of the bottom support portion 12 , the rear support portion 11 , the left blocking portion 13 and the right blocking portion 14 are all folded and/or reinforced, and stitched into a whole. For example, multiple folds are used at the edge 16 and stitched or ultrasonically bonded. Preferably, the bottom support portion 12 and the rear support portion 11 are cut to conform to the body shape of the human body, for example, folds 18 are provided. In the area 17 where the lifting handle 15 is located, it is reinforced, for example thickened, with an additional fabric film on the fabric.

In addition, markings may be provided on the fabric of the manual lifting sling device 10 . For example, sew on a label or write on it with a permanent ink pen. For example, the patient's name can be written on the upper part of the label, or some other common identification characters, such as "do not wash", "do not iron", "do not tumble dry" and so on.

As shown in FIG. 2 , it is a schematic diagram of the use state of the manual lifting sling device according to the preferred embodiment of the present invention. The patient sits in the space enclosed by the manual lifting sling device, and the back, buttocks and legs are supported by the sling. Two people are required to lift the hand lift sling. Each of them grasps the 2 handles on each side of the sling, one of which supports the patient's back and the other supports the seated patient's buttocks and legs.

The present invention can be made of woven fabric or non-woven fabric. It is preferably made of a non-woven fabric, on which a raised pattern formed by rolling (calendering) can be provided to give it the appearance of a woven fabric. The sling unit can be reinforced with an additional fabric layer. Although the manual lifting sling device provided by the present invention has a recommended safe weight of 120kg, it has been tested and proven to withstand 50 times of lifting a 190kg heavy object without any signs of wear.

Additionally, the fabric may be a laminate of one or more layers of woven or nonwoven film. A breathable or non-breathable film may also be laminated to one or both sides of the biodegradable nonwoven fabric of the sling to absorb any bodily fluids of the patient during lifting and handling.

The hand lift sling device of the present invention may be made of non-biodegradable fabric. These non-biodegradable materials include PP (polypropylene), PE (polyethylene), PET (polyethylene terephthalate) or PA (polyamide), among other man-made polymers.

Preferably, the manual lifting sling device of the present invention can also be made of non-woven biodegradable/compostable materials, typically PLA (polylactic acid), or a major part of PLA plus a small amount of PHA (polyhydroxyalkyl ester), or a blend of PLA plus a small amount of PHA and PBAT (polybutylene adipate-terephthalate), or a blend of PLA plus a small amount of PHA, PBAT and A blend of PBS (polybutylene succinate), or a blend of PLA plus a small amount of PBAT and PBS, or a blend of PBAT and PBS, or a major part of PLA plus a small amount of PHB (poly-beta-hydroxybutyric acid) blend.

Said slings are preferably made from thermally bonded biodegradable/compostable polymer random oriented fibers, but can also be made from dry laid, chemically bonded (with biodegradable adhesive) fabrics into, or from dry-laid or spunlace (spunlace entangled) fabrics. The material is usually breathable (unless a non-breathable biodegradable film is adhered to it) but impermeable to water and may require perforations in the sling for lowering the patient's access to the bath. Fabrics can be made from webs of continuous filaments or staple fibers that are hydroentangled or needle punched. The fabric may be made from a web of continuous filaments or staple fibers bonded with non-biodegradable or biodegradable chemicals, including latex binders or adhesives.

In order that the discarded hand lift sling that is no longer used has no negative impact on the environment, the fabric in the hand lift sling is preferably biodegradable and/or compostable. The aforementioned biodegradable and/or compostable fabrics are discussed below. The biodegradable material used in the present invention can not only ensure that the sling device has a corresponding bearing capacity and prevent accidents during lifting; Special lifting sling device to avoid cross-infection.

Among the current common biodegradable polymers, the advantage of polylactic acid (PLA) in the field of biodegradable/compostable polymers for plastics and fabrics is that although PLA is extracted from natural and renewable materials, However, it is thermoplastic and can be melt-extruded to produce plastic products, fibers and fabrics, and similar materials based on petroleum synthesis, such as polyolefins (polyethylene and polypropylene) and polyester (polyethylene terephthalate) Compared with alcohol esters and polyethylene terephthalate), PLA products have good mechanical strength, toughness and flexibility. PLA is made from lactic acid, a by-product of fermentation extracted from corn, wheat, grains or sugar beets. When polymerized, lactic acid forms aliphatic polyesters with dimer repeat units shown below:

It has been discovered that poly(polyhydroxyalkanoate) (PHA) can be produced by the natural synthesis of various bacteria as an intracellular storage material of carbon and energy. Wherein the copolyester repeating unit of P(3HB-co-4HB) is as follows:

Polybutylene adipate-terephthalate (PBAT), a biodegradable polymer, cannot currently be produced from bacterial sources, but can be produced synthetically from petroleum-based products. Although the melting point of PBAT is 120°C, which is lower than that of PLA, PBAT has higher elasticity, excellent impact strength and good melt processability than PLA. While PLA has good melt processability, strength and biodegradability/compostability, it suffers from poor elasticity and impact strength. The blend of PBAT and PLA has enhanced elasticity, flexibility and impact strength. The chemical structure of PBAT is shown below:

Polybutylene succinate (PBS) can be synthesized by polycondensation of ethylene glycol. The chemical structure of PBS is shown below:

Although P(3HB-co-4HB) products have been shown to be readily biodegradable in soil, sludge and seawater, the rate of biodegradation in water is very slow due to the absence of microorganisms in water (Saito, Yuji, Shigeo Nakamura, Masaya Hiramitsu and Yoshiharu Doi , "Microbial Synthesis and Properties of Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)," Polymer International 39(1996), 169-174). Therefore the shelf life of the P(3HB-co-4HB) product should be very good in clean environments such as dry storage in airtight packaging, cleaning solutions, and the like. However, discarded P(3HB-co-4HB) fabrics, films, and packaging materials, when placed in dirty environments containing microorganisms such as soil, river water, river mud, seawater, and composts of manure and sand, sludge, and seawater Should be readily degradable. It should be noted that polylactic acid (PLA) does not readily biodegrade in the above dirty environments and ambient temperatures, but must be composted. First, the heat and humidity in the compost heap must break down the PLA polymers into smaller polymer chains and finally into lactic acid. Microorganisms in the compost and soil consumed the smaller polymer fragments and lactic acid as nutrients. Therefore, polyhydroxyalkanoate (PHA) blends such as P(3HB-co-4HB) products with PLA should enhance the degradation of products made from blends of PHAs-PLA. Additionally, products made from blends of PHA and PLA should have enhanced shelf life in clean environments. However, in the past 10 years, the price of PLA has dropped dramatically to only slightly higher than that of synthetic polymers such as polypropylene and PET polyester; meanwhile, the price of PHAs continues to remain 2 to 3 times higher than that of PLA. times, the PLA can be synthesized from lactic acid on a large scale. PHAs are made by bacteria with a specific carbon source and must be extracted from the bacteria using a solvent. Therefore, it is commercially impossible to blend more than 25% PHA with PLA to melt-extrude to form products such as woven fabrics, knitted and non-woven fabrics, films, food packaging containers, and the like.

Table 1 shows biodegradable nonwoven fabrics, biodegradable films, and laminated structures of nonwoven fabrics and biodegradable films. Pure PBAT films with 9 micrometers ([mu]m) and 9 [mu]m PBAT films with 20% calcium carbonate are available from suppliers in China. Meltblown (MB) containing 20% polypropylene (PP) (non-biodegradable) is available from Biax-Fiberfilm, USA (non-biodegradable). Black spunbond (SB) PLA with carbon black is available in a typical mass of 80 ^g /m2 from Saxon Textile Research Institute in Germany. In separate tests, neat PBAT films and PBAT films with 20% calcium carbonate were laminated to Vistamaxx MB and black SB PLA containing 20% PP using 5-13 ^g /m2 hot melt adhesive. Typically 0.5-12 g/ ^m2 of hot melt and preferably 1-7 g/ ^m2 of hot melt should be used. Alternatively, two layers of SB PLA were laminated and bonded using a fusion adhesive. The weight, thickness, toughness, elongation at break, tear strength, burst strength, water vapor transmission rate (MVT) and hydrohead tested for all raw materials and laminated structures are shown in FIG. 1 . It should be noted that these are just a few examples of different embodiments of the invention and that melt application is used to bond together different layers of: PBAT film or other biodegradable/compostable film that can be applied directly by extrusion coating substrate without the need for adhesives. The laminated structures can be joined or bonded together by, but not limited to, hot spot calendering, bulk calendering, or ultrasonic welding. Additionally, instead of melt adhesives, glue or water or solvent based adhesives or latexes have been used to bond laminated structures together.

Table 1 Strength and barrier properties of polymers

*DNB: means not broken due to high elasticity

As shown in Table 1, a 9 μm pure (100%) PBAT film (Sample 1) has good elongation in MD direction and a high elongation at break of more than 300% in CD direction. Bursting strength tests could not be performed on samples 1 to 5 because all of these films and laminated structures were very resilient, did not break during the test and did not exhibit deformation after the test. The water vapor transmission rate of sample 1 is quite good at 3380 g/m2 per ²⁴ hours with a static head of 549 mm. The PBAT film with 20% calcium carbonate (CaCO3) (Sample ₂ ) had similar data to Sample 1, with relatively lower WVTR and hydrostatic head. PBAT films similar to Samples 1 and 2 and having a smaller thickness of 6 μm or less are also expected to have good elongation and higher WVTR, although the water head may be lower. Melt blown sample 3 contained 80% of (Vistamaxx polyolefin based polymer with high elasticity and made by ExxonMobil) and 20% PP, since the fabric is moderately open, it has about 300% MD and CD elongation and 8816 g/m per 24 hours High WVTR of ² . Although MBVistamaxx fabric is not biodegradable, it is an example of a type of elastic nonwoven material that is possible to make from biodegradable polymers such as PBAT and Other biodegradable polymers. Sample 3 had a fairly high head of 1043 mm, indicating good barrier properties. It should be noted that 20% PP was added to the Vistamaxx polymer pellets and the blend was physically mixed and melted before the blend was fed into the MB extruder so that the Vistamaxx MB fabric was not too sticky. If 100% Vistamaxx is melt blown, it will be very sticky and may clump during rolling and be difficult to un-wind for subsequent lamination or use.

Laminations of pure PBAT with Vistamaxx and PBAT containing ₂₀ % CaC03 using hot-melt adhesives significantly increased MD and CD toughness compared to Vistamaxx alone. The samples also had very high MD elongation and especially high CD elongation (390% for sample 4 and 542% for sample 5). Samples 4 and 5 also had significantly high MVTR values of 1671 and 1189 g/m2 per ²⁴ hours, respectively, and high water heads of 339 and 926 mm water, respectively. Again it should be noted that PBAT films have been extrusion coated directly onto MB 100% Vistamaxx or MBVistamaxx with some PP with or without hot melt adhesive and extrusion coating has allowed thinner gauges PBAT films, down to 4 or 5 μm, thus have higher MVTR, but possibly lower water head.

The black SB PLA had a target weight of 80 g/m ² , a MD toughness of 104N and a CD toughness of 31N, but had a lower MD elongation at break of 3.6% and a high CD elongation of 30.7%. The bursting strength is 177KN/m ² and the WVTR is quite high at 8322g/m ² per 24 hours, and the water head is quite significant at 109mm. The MD and CD toughness of 80 gsm black SB PLA laminated to pure PBAT with hot melt adhesive is higher than pure SB PLA, which are 107 and 39 N, respectively, but the CD elongation is only 9.8%. But the PBAT laminated with SB PLA has a higher bursting strength of 220KN/m ² . But the air permeability is still excellent, the WVTR is 2459g/m ² per 24 hours, and it has a very high water head, which is 3115mm of water. SB PLA laminated with PBAT containing ₂₀ % CaCO3 had similar properties to sample 8, except for a lower hydraulic head, although still as high as 2600 mm water. SBPLA laminate structures with thinner PBAT films and especially with thinner PBAT films deposited by extrusion coating, can produce protective clothing for medical, industrial or sports applications with high MVTR, because they can be worn comfortably and Has a high net head for barrier protection. Barrier protection can be further enhanced by applying a finish (fluorosilicone or other type of finish) either on the PBAT film side or on the SB PLA on either side, before or after lamination of the film. Barrier protection can also be enhanced by laminating MB PLA with SB PLA either before or after lamination of the film. It is also possible to add finishing agents to the polymer melts used to make eg PBAT films, SB or MB PLA.

When two layers of SB PLA were melt-bonded together to form Sample 9, the MD and CD toughness and burst strength were substantially double those of Sample 6, which was a one-layer construction. Target MD and CD tenacities corresponding to elongation at break (% elongation) of patient lifting slings produced from 110 g/m ² SB PP are at least 200 and 140 N per 5 cm, respectively, with elongation values in MD and CD of at least Both are 40%. As shown in Table 1, the MD toughness of two adhesively bonded SB PLA layers was 215N, but the CD toughness was only 50% of the required grade. Also the elongation at break in MD and CD is much lower than the required minimum of 40%. The MD and CD elongation of SB PLA can be enhanced by blending PLA with 5 to 60% PBAT or preferably 20 to 50% PBAT prior to SB fabric extrusion. Additionally, PBAT and PBS can be blended with PLA to obtain fabrics with desired MD and CD tenacity and elongation values and stability after heat exposure. In addition, the SB filament web can be bonded by non-hot spot calendering to obtain greater multi-directional strength and elongation to include hydroentangling and needle punching. Needlepunched SB PLA of 110 g/ ^m2 and greater can be produced without the need to laminate or bond two or more SB PLA fabrics together to obtain the desired strength and elongation values.

In Table 2, two SB PLA fabrics are compared, one of which is composed of 100% PLA and the other is composed of 80% PLA and 20% PHB by mass percentage. The table shows that the blend of 80% PLA/20% PHB has better MD and CD toughness than 100% PLA SB, and the elongation in MD is 4 times that of 100% PLA SB, and the elongation in CD is 100% PLA 3 times of SB. Sample 9 in Table 1 was prepared by laminating two layers of sample 11 with hot melt adhesive, and the resulting fabric had very high MD and CD tensile and tear strengths, as well as higher elongation compared to the previous sample 9. long rate.

Table 2 Performance comparison of SB 100% PLA and SB 80% PLA/20% PHB

The present invention has been described based on specific embodiments, but those skilled in the art will understand that various changes and equivalent substitutions can be made without departing from the scope of the present invention. In addition, many modifications may be made to adapt the technique to a particular situation or material without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed herein, but include all embodiments falling within the scope of the appended claims.

Claims (12)

1. a kind of hand hoisting sling device, it is characterised in that include by made by fabric：

For supporting the bottom supporting part of patient posterior and leg；

The Backside support portion for supporting the patients back closed with the inclined corner connection of the bottom supporting part；The rear side Support part and bottom supporting part are in isosceles-trapezium-shaped, and the longer base of two isosceles trapezoids is bonded together, and the inclination for being in Angle is obtuse angle；

Respectively spacing left side stop part and right side stop part, the left side stop part and right side are carried out to patient in the left and right sides Stop part is engaged with the bottom supporting part and Backside support portion simultaneously；The left side stop part by respectively with bottom supporting part Two triangle sets engaged with Backside support portion are into the right side stop part is corresponding with the left side stop part；And it is described At least two lifting handles are equipped with left side stop part and right side stop part；

The edge of the bottom supporting part, Backside support portion, left side stop part and right side stop part is folded and/or strengthens, And the bottom supporting part, Backside support portion, left side stop part and right side stop part are integral by suturing；And in left side resistance Stopper and right side stop part arrange the region of lifting handle to be strengthened it.

2. hand hoisting sling device according to claim 1, it is characterised in that the fabric is textile fabric or nothing Yarn fabric.

3. hand hoisting sling device according to claim 1, it is characterised in that the bottom supporting part and Backside support Portion is cut into and meets buman body type, and is provided with fold.

4. hand hoisting sling device according to claim 1, it is characterised in that the fabric is provided with mark.

5. hand hoisting sling device according to claim 1, it is characterised in that the fabric be one layer of textile film or One layer of nonwoven film of person, either the fabric by multi-layered textile thin film or nonwoven film lamination form.

6. hand hoisting sling device according to claim 1, it is characterised in that attached on the one or both sides of the fabric Ventilative for non-biodegradable films or biodegradable thin film.

7. the hand hoisting sling device according to any one in claim 1-6, it is characterised in that the fabric is not by Biodegradable material is made, the not Biodegradable material include polypropylene, polyethylene, polyethylene terephthalate or Person's polyamide.

8. the hand hoisting sling device according to any one in claim 1-6, it is characterised in that the fabric is for can Biological degradation polyalcohol material is made, the biodegradable polymers material be polylactic acid, polyhydroxy-alkanoate, gather oneself two Acid-butylene terephthalate, poly butylene succinate, poly-β-hydroxybutyric acid, or foregoing biodegradable polymeric material Blend.

9. the hand hoisting sling device according to any one in claim 1-6, it is characterised in that the fabric is by warm The not biodegradable randomly oriented fiber or biodegradable randomly oriented fiber of bonding is made.

10. the hand hoisting sling device according to any one in claim 1-6, it is characterised in that the fabric connects Continue long silk screen or web of staple fibers is made, the continuous filament yarn net or web of staple fibers are formed using Hydroentangled or acupuncture.

The 11. hand hoisting sling devices according to any one in claim 1-6, it is characterised in that the fabric by Made using the continuous filament yarn net or web of staple fibers of not biodegradable either biodegradable chemicals bonding, institute Chemicals are stated including bonding agent.

A kind of 12. methods for preventing cross infection between the patient being handled upside down, it is characterised in that each patient has special The hand hoisting sling device according to any one in claim 1-6.