CN216497081U

CN216497081U - Positioning pad

Info

Publication number: CN216497081U
Application number: CN202123453720.8U
Authority: CN
Inventors: 何海; 张中川
Original assignee: Guangzhou Tianhong Medical Technology Co ltd
Current assignee: Guangzhou Tianhong Medical Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-13
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a positioning pad, comprising: the plastic shell is a shell with a hollow structure and made of a cloth-coated low-temperature thermoplastic plate, and comprises a first panel and a second panel; the inflatable bags are arranged inside the outer shell and distributed between the first panel and the second panel; the inflatable bag is connected with an inflation nozzle which is communicated with the outside of the outer shell; and a layer of foam particles disposed inside the outer shell and distributed between the first panel and the second panel. The utility model provides a locating pad, combine shell body, gas bag and foam particle layer as an organic whole, combine the moulding and the locate function of three at moulding, design in-process, improved the moulding and the design effect of locating pad, be favorable to obtaining the positioning effect that the uniformity is high, stable.

Description

Positioning pad

Technical Field

The utility model belongs to the technical field of medical instrument, especially belong to medical auxiliary equipment technical field, concretely relates to location pad.

Background

Tumor radiotherapy is a method for treating tumors by utilizing radioactive rays, and auxiliary equipment is needed to perform auxiliary positioning on a human body in the treatment process so as to ensure the effect of mode treatment. Generally, radiation therapy cannot be completed once, and multiple times of radiation are needed to irradiate the focus, so that the consistency of the body position of a patient can be ensured during each treatment, the radiation therapy is an important factor, and the radiation therapy becomes a key problem to be solved by various positioning consumables.

The common positioning consumables used for positioning the human body at present comprise a positioning film, a positioning pad, a carbon fiber bed board and the like. The location pad serves as one of the important location aids.

At present, common positioning pad product design forms have the sack that adopts TPU compound cloth and foam to make different shapes, makes the product harden rapidly through the mode of evacuation during the use, reaches the effect of fixed human body position. CN105396228A discloses a vacuum shaping pad for tumor radiotherapy and its using method, which has a modular design, reusable, accurate positioning, and labeled vacuum shaping pad, the vacuum shaping pad provided according to the present invention and its using method. However, the product has certain defects, such as air leakage risk, positioning failure, poor fitting degree and poor comfort degree.

The positioning pad is foamed on site by adopting double-component polyurethane, and the body position of the patient is fixed after the positioning pad is hardened. CN108530875A discloses a polyurethane foam material for a human body foam positioning pad for tumor radiotherapy and a preparation method thereof, the material has short inspiration time and short curing time, not only provides sufficient matching operation time for doctors and patients, but also shortens the stay time of the patients on the positioning pad, and the polyurethane foam material is difficult to deform and has light weight. However, the products of this type require a certain operation experience, and improper operation easily causes implosion, and the foaming material can generate a certain amount of gas with pungent odor, which is not good for human health.

The positioning pad is combined with foam by adopting a low-temperature thermoplastic plate, can be molded randomly after being heated, and has certain strength after being cooled, thereby achieving the effect of fixing a human body. CN 103655017A discloses a moulding pad, and this product can be moulded into arbitrary shape after the heating, has fine mobility after the filler heating, can also keep certain compliance after the cooling, can promote comfort level and the laminating degree of use well in the application of human location equipment. However, the product cannot completely and effectively fill all gaps between the human body and the positioning bed plate, and the comfort level and the fitting degree need to be improved.

SUMMERY OF THE UTILITY MODEL

In view of this, some embodiments disclose a placemat, including:

the plastic shell is a shell with a hollow structure and made of a cloth-coated low-temperature thermoplastic plate, and comprises a first panel and a second panel;

the inflatable bags are arranged inside the outer shell and distributed between the first panel and the second panel; the inflatable bag is connected with an inflation nozzle which is communicated with the outside of the outer shell;

and a layer of foam particles disposed inside the outer shell and distributed between the first panel and the second panel.

Some embodiments disclose a placemat having an outer casing made of two coated low temperature thermoplastic sheets.

Some embodiments disclose a placemat having an outer casing made of a sheet of coated low temperature thermoplastic sheet.

Some embodiments disclose a placemat in which the airbag is made of an elastic or thermoplastic material.

Some embodiments disclose a placemat, the foam particles are resilient or plastic foam particles.

Some embodiments disclose a positioning pad, wherein the airbag is disposed adjacent to the first panel, and the airbag is sized to correspond to the first panel.

Some embodiments disclose a placemat having a layer of foam particles disposed between the airbag and the second panel, the layer of particle foam being of a size comparable to the airbag.

Some embodiments disclose a positioning pad, wherein the foam particle layer is formed by foam particles and a pressure sensitive adhesive layer coated on the surface of the foam particles.

Some embodiments disclose the spacer, the edge of shell body is provided with the cloth and bordures.

Some embodiments disclose a placemat in which an airbag is bonded to a first panel.

According to the positioning pad disclosed by the embodiment of the application, the plastic outer shell is made of the cloth-covered low-temperature thermoplastic plate, the shaping and the shaping can be carried out according to the use requirement in a heating state, the inflatable bag arranged in the outer shell can be inflated with gas, the inflated inflatable bag can further deform correspondingly in the shaping process of the outer shell, the shaping of the outer shell is assisted, and the amount of the inflated gas can be increased or reduced so as to adjust the thickness of the inflatable bag and adapt to different positioning requirements; meanwhile, the foam particle layer is synchronously deformed in the shaping process of the outer shell, so that the shaping and shaping effects of the outer shell are further assisted; the positioning pad organically combines the outer shell, the inflatable bag and the foam particle layer into a whole, combines the shaping and positioning functions of the outer shell, the inflatable bag and the foam particle layer in the shaping and shaping processes, improves the shaping and shaping effects of the positioning pad, and is favorable for obtaining the positioning effects with high consistency and stable shaping structure.

Drawings

FIG. 1 is a schematic cross-sectional view of a disclosed placemat in accordance with certain embodiments;

FIG. 2 is a schematic illustration of a formation of an outer housing of the spacer according to some embodiments;

FIG. 3 is a schematic illustration of a formation of an outer housing of the placemat according to some embodiments disclosed herein;

FIG. 4 is a schematic illustration of a location pad configuration according to some embodiments disclosed herein.

Reference numerals

1 outer shell 2 air bag

3 foam particle layer 4 charging connector

11 first panel 12 second panel

13 joint 100 coated low temperature thermoplastic sheet

101 first dotted line 102 via

103 second dotted line

Detailed Description

The word "embodiment" as used herein, is not necessarily to be construed as preferred or advantageous over other embodiments, including any embodiment illustrated as "exemplary". Performance index tests in the examples of this application, unless otherwise indicated, were performed using routine experimentation in the art. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; other test methods and techniques not specifically mentioned in the present application are those commonly employed by those of ordinary skill in the art.

The terms "substantially" and "about" are used herein to describe small fluctuations. For example, they may mean less than or equal to ± 5%, such as less than or equal to ± 2%, such as less than or equal to ± 1%, such as less than or equal to ± 0.5%, such as less than or equal to ± 0.2%, such as less than or equal to ± 0.1%, such as less than or equal to ± 0.05%. Numerical data represented or presented herein in a range format is used merely for convenience and brevity and thus should be interpreted flexibly to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a numerical range of "1 to 5%" should be interpreted to include not only the explicitly recited values of 1% to 5%, but also include individual values and sub-ranges within the indicated range. Thus, included in this numerical range are individual values, such as 2%, 3.5%, and 4%, and sub-ranges, such as 1% to 3%, 2% to 4%, and 3% to 5%, etc. This principle applies equally to ranges reciting only one numerical value. Moreover, such an interpretation applies regardless of the breadth of the range or the characteristics being described.

In this document, including the claims, conjunctions such as "comprising," including, "" carrying, "" having, "" containing, "" involving, "" containing, "and the like are understood to be open-ended, i.e., to mean" including but not limited to. Only the conjunctions "consisting of … …" and "consisting of … …" are closed conjunctions.

In the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In the examples, some methods, means, instruments, apparatuses, etc. known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

On the premise of no conflict, the technical features disclosed in the embodiments of the present application may be combined arbitrarily, and the obtained technical solution belongs to the content disclosed in the embodiments of the present application. The first and second mentioned in this application are only for the representation of two different parts and do not indicate their sequential order. In the use process of the positioning pad disclosed herein, the second panel is generally arranged at the uppermost surface to contact with the human body, the first panel is arranged at the lowermost surface to contact with the supporting surface such as the bed board, and the description of the relative position relationship among the components in the positioning pad is based on the general arrangement mode unless the clear meaning of the context indicates that the relative position relationship is inconsistent with the specific arrangement mode.

The technical details are further illustrated in the following description with reference to the examples and the accompanying fig. 1, 2 and 3.

In some embodiments, the placemat includes: the plastic shell body 1 is a shell body which is made of a cloth-coated low-temperature thermoplastic plate and has a hollow structure, and comprises a first panel 11 and a second panel 12; the inflatable bags 2 are arranged inside the outer shell 1 and distributed between the first panel 11 and the second panel 12; the inflatable bag 2 is connected with an inflating nozzle 4, and the inflating nozzle 4 is communicated with the outside of the outer shell 1; and a foam particle layer 3 disposed inside the outer case 1 and distributed between the first panel 11 and the second panel 12.

The positioning pad is an appliance for auxiliary treatment in the aspects of tumor radiotherapy and the like, generally performs auxiliary positioning on a human body, and is beneficial to maintaining the human body in a required body position for receiving treatment; usually the position pad need possess certain big or small specification to can form effective support to human body whole, the position pad still has certain thickness generally, so that adjust human body position in the direction of height, also be convenient for human body to lie on the position pad after, carry out the moulding to the position pad. The positioning pad generally comprises two planes, the planes on the two sides of the positioning pad are generally formed by low-temperature thermoplastic plates for manufacturing the positioning pad, the low-temperature thermoplastic plates on the two surfaces of the positioning pad are used as a first panel and a second panel which form a main structure of the positioning pad, and peripheral edge areas of the first panel and the second panel are mutually combined to form a stable combination structure, so that a shell with the first panel and the second panel as the main structure forms a complete structure and an outer shell with an inner cavity.

Generally, the first panel and the second panel can be respectively and independently shaped and do not influence each other, so that the positioning pad can be adapted to the shaping requirement of the upper surface and the shaping requirement of the lower surface of the positioning pad at the same time, and the application range of the positioning pad is widened.

Generally, the cloth-coated low-temperature thermoplastic plate can deform at a lower heating temperature, for example, within a range of 60-75 ℃, has good shaping capability, and keeps shaping after cooling; the surface of the thermoplastic plate after shaping has good comfort feeling for the body surface, so that the outer shell has good body feeling comfort. For example, the low-temperature thermoplastic plate made of polyurethane and polycaprolactone with the melting point of 60-75 ℃ can be used for manufacturing the outer shell.

The outer shell is usually provided with a structure for arranging an inflation nozzle so as to arrange a proper inflation nozzle for inflating and deflating the inflation bag inside the outer shell.

The air bag is usually for having the enclosed construction of gas tightness, deformation of certain degree that can take place after aerifing to with the inside hollow structure shape mutual adaptation of shell body, the air bag is formed by the material preparation that can take place elastic deformation or thermoplasticity deformation moreover usually, can be along with the change of the pressure in the air bag and grow or diminish, be favorable to supplementary shape and the moulding design effect of adjusting the shell body. An inflation nozzle is typically attached to the airbag to inflate the airbag. Generally, the inflation nozzle is provided with a release valve to enable the inflation bag to be deflated to adjust the internal pressure.

The inflation of the inflatable bag is usually performed by an inflator pump, and an inflation nozzle matched with an inflation device such as the inflator pump is usually selected.

The foam particle layer is formed by gathering foam particles in the outer shell, and the shape of the foam particle layer can be changed to a certain degree. The process that the deformation takes place for moulding process of shell body and gas bag usually receives going on under certain pressure state at the shell body, for example usually heat the shape deformation temperature range of low temperature thermal plastic board with the position pad, then spread it on the treatment bed, personnel lie on the position pad, the position pad is under the effect of human weight this moment, take place the deformation with human size interact's, in deformation in-process, certain deformation also takes place for the foam particle layer, with the deformation interact adaptation of gas pad and shell body, be favorable to improving the moulding effect of reinforcing, the stability of shaping shell body structure after maintaining moulding.

As an alternative embodiment, the outer shell of the positioning pad is made of two coated low-temperature thermoplastic plates. Usually, according to the shape design of the positioning pad, two coated low-temperature thermoplastic plates with the same shape and size are cut, the two coated low-temperature thermoplastic plates are overlapped with each other, the edge areas are fixedly connected in a hot pressing, sewing and other modes, a combination part 13 positioned at the edge of the outer shell is formed, and finally the outer shell 1 with a closed and hollow structure is formed. Generally, before the outer shell is molded, an opening is arranged at a proper position of one of the low-temperature thermoplastic plates, an inflation bag and a foam particle layer are placed between the two coated low-temperature thermoplastic plates, the position of an inflation nozzle of the inflation bag is adjusted to be mutually matched with the opening on the coated low-temperature thermoplastic plate, then the low-temperature thermoplastic plates are fixedly connected and molded, and after the outer shell is molded, the complete positioning cushion is obtained. As shown in the example of fig. 2, two coated low-temperature thermoplastic plates 100 with the same shape and size are obtained by cutting, wherein one coated low-temperature thermoplastic plate 100 is provided with a through hole 102 for arranging an inflation nozzle; the two coated low temperature thermoplastic sheets 100 are overlapped with each other, and then put into the air bag and the granular foam, and the peripheral edge area indicated by the first dotted line 101 is sewed to form a sewed combination part 13, so as to obtain the plastic outer shell. The through hole 102 is generally disposed near the edge region of the outer shell, so as to prevent the inflation nozzle disposed at the through hole from affecting the shaping and use of the positioning cushion, and facilitate inflation or deflation during the shaping process, thereby adjusting the shaping shape of the positioning cushion.

As an alternative embodiment, the edge area of the coated low-temperature thermoplastic sheet shown by the first dotted line 101 is folded toward the surface direction, the folded coated low-temperature thermoplastic sheets 100 are overlapped with each other on the side surface of the outer shell 1, and then the overlapped area is sewn, and the formed joint 13 is positioned on the side surface of the outer shell to form the side panel of the outer shell; as shown in fig. 4, the positioning pad is made of two coated low temperature thermoplastic plates, the first panel 11 and the second panel 12 formed by the coated low temperature thermoplastic plates are overlapped with each other on the side of the outer shell, and a combining part 13 is sewn at the overlapped part to be used as the side panel of the outer shell; the air bag 2 arranged inside the outer shell is positioned above the particle foam layer 3, and the air charging connector 4 is communicated with the air bag 2 and positioned above the positioning cushion.

As an alternative embodiment, the outer shell of the location pad is made of a piece of coated low-temperature thermoplastic plate. Generally, according to the shape design of the positioning pad, a complete coated low-temperature thermoplastic plate is cut, the coated low-temperature thermoplastic plate is folded to form two parts with the same size and shape, after the two parts are overlapped, the edge area is fixedly connected in a hot pressing mode, a sewing mode and the like, the two parts form a closed structure, and a hollow cavity is formed inside the closed structure. Generally, before the outer shell is molded, an opening is arranged at a proper position of a low-temperature thermoplastic plate to be matched with an inflating nozzle, an inflating bag and a foam particle layer are placed between two coated low-temperature thermoplastic plates, the position of the inflating nozzle of the inflating bag is adjusted to be matched with the opening on the coated low-temperature thermoplastic plate, then the inflating bag and the coated low-temperature thermoplastic plate are fixedly connected and molded, and after the outer shell is molded, the finished positioning cushion is obtained. As illustrated in fig. 3, a second dotted line 103 is drawn on a whole piece of the coated low temperature thermoplastic sheet 100 obtained by cutting, so that the coated low temperature thermoplastic sheet 100 is formed into two parts which are identical to each other on the left and right, wherein one part is provided with a through hole 102 for installing an inflation nozzle; then the two parts are folded, put into the air bag and the foam particle layer, and then sewn in the peripheral edge area shown by the first dotted line 101, so that the plastic outer shell can be obtained.

As an alternative, the first panel of the outer casing is a single-faced coated low-temperature thermoplastic sheet, typically with the surface of the coating on the outside.

As an alternative embodiment, the first panel of the outer housing is a double-faced cloth-covered low-temperature thermoplastic plate.

As an alternative embodiment, the second panel of the outer casing is a single-faced coated low-temperature thermoplastic sheet, typically with the surface of the coating on the outside.

As an alternative embodiment, the second panel of the outer case is a single-faced-coated low-temperature thermoplastic sheet.

As an alternative embodiment, the edge of the outer shell of the positioning pad is provided with a cloth edge. Usually, the edge of the outer shell of the positioning pad is provided with a joint part for forming the outer shell, and the joint part is wrapped by cloth so that the surface of the positioning pad is comfortable, and the discomfort such as damage to a human body or stimulation is reduced. As an alternative embodiment, the edge covering cloth is made of elastic cloth. As an alternative embodiment, the edge covering material is made of the same cloth as the covering cloth on the surface of the outer shell.

As an example, the airbag of the positioning cushion is made of elastic material or thermoplastic material. For example, the inflatable bag is made of polyethylene PE, polyurethane TPU, polyvinyl chloride PVC or rubber.

As an example, the foam particles of the positioning pad are elastic foam particles or plastic foam particles. Usually, the polymer foam particles with the density of 70-80 g/L can be selected, for example, the foam particles prepared from materials such as polystyrene EPS, foamed polypropylene EPP, polyethylene foamed cotton EPE and the like.

As an embodiment, the inflatable bag of the positioning cushion is arranged adjacent to the first panel, and the size of the inflatable bag is equivalent to that of the first panel. The size of the inflatable bag is equivalent to that of the first panel, the inflatable bag can be uniformly arranged above the whole first panel and integrally forms good contact with the first panel, and shaping is facilitated. Usually the second panel is in contact with the body during shaping and shaping. Usually, the surface of the second panel contacting with the human body is covered with elastic cloth, so that the outer shell has good body feeling comfort.

As an example, the foam particle layer of the placemat is disposed between the airbag and the second panel, and the size of the particle foam layer is comparable to that of the airbag. The size of foam particular layer is equivalent with the air bag, can evenly set up the air bag in granule foam layer below, forms good even contact surface closely between the two, and the shape of the moulding in-process foam particular layer of being convenient for and the shape synchro variation of air bag improve moulding efficiency, firm moulding effect.

As an embodiment, the foam particle layer of the positioning pad is formed by foam particles and a pressure-sensitive adhesive layer coated on the surfaces of the foam particles. Generally, the surface of the foam particles is coated with a layer of pressure-sensitive adhesive, the pressure-sensitive adhesive has a certain bonding effect on the foam particles, so that the foam particles filled in the outer shell are bonded with each other to form a layered structure, meanwhile, the layered structure formed by the foam particles has a certain deformation capacity, and the positions among the foam particles can be changed along with the deformation of the outer shell and the air bag in the shaping process, so that the shape of the foam particle layer is changed, and a comprehensive shaping effect is formed under the combined action; the foam particle layer that has certain plasticity simultaneously still has certain structural strength, is favorable to remedying the defect that the air bag shape change is big, the support dynamics is little, helps with the shell body combined action for keep stable shape after the location pad is moulding, make the location pad can keep same moulding structure, be favorable to the location pad to make the human body maintain same kind of position in repetitious usage, satisfied many times of repeated positioning needs among the tumour radiotherapy.

As an alternative embodiment, the pressure-sensitive adhesive is a polyethylene ester thermoplastic elastomer which has certain bonding effect and does not generate polluting gas. Generally, the pressure-sensitive adhesive can keep the foam particles to slide less before and during the shaping process, and the foam particle layer generates less deformation, so that the thickness of the positioning pad product is kept consistent.

As an alternative embodiment, the airbag is adhered to the first panel. Usually directly set up below first panel, the two direct contact utilizes the binder will inflate between bag and the first panel bonding together, can prevent effectively that the air bag from taking place to remove in that the shell body is inside, influences the supporting effect of air bag to the outer casing, influences moulding and fixed structure's stability. As an alternative embodiment, the inner surface of the first panel is uniformly bonded to the surface of the airbag. As an alternative embodiment, the airbag has a shape similar to the structure of the cavity inside the outer envelope, the thickness of the airbag is smaller than the thickness of the cavity inside the outer envelope, and the cavity between the airbag and the second panel of the outer envelope is filled with a layer of foam particles.

The positioning pad is generally used for tumor radiotherapy and the like, and comprises the following steps:

before use, the positioning pad is placed in an oven at the temperature of 60-75 ℃ to be heated for 10-20 minutes, after the outer shell of the positioning pad is completely softened, the positioning pad is taken out, and the positioning pad is laid on a bed board; when the positioning pad is laid on the bed board, the first panel is positioned at the lowest layer and is upwards provided with the inflatable bag, the foam particle layer and the second panel in sequence;

a certain amount of gas is filled into the inflatable bag, the patient lies on the positioning pad, and the air pressure in the inflatable bag is adjusted according to the positioning and fixing requirements of the body position of the patient, so that the positioning pad between the patient and the bed plate can be completely shaped according to the body shape of the patient, and the patient is supported in a good omnibearing manner;

cooling to room temperature to complete the shaping and shaping of the positioning pad; the shaped positioning pad can be used as an auxiliary positioning device for repeated use in tumor radiotherapy, and other treatments or rehabilitation, and the structural consistency is kept.

According to the positioning pad disclosed by the embodiment of the application, the plastic outer shell is made of the cloth-covered low-temperature thermoplastic plate, the shaping and the shaping can be carried out according to the use requirement in a heating state, the inflatable bag arranged in the outer shell can be inflated with gas, the inflated inflatable bag can further deform correspondingly in the shaping process of the outer shell, the shaping of the outer shell is assisted, and the amount of the inflated gas can be increased or reduced so as to adjust the thickness of the inflatable bag and adapt to different positioning requirements; meanwhile, the foam particle layer is synchronously deformed in the shaping process of the outer shell, so that the shaping and shaping effects of the outer shell are further assisted; the locating pad combines the outer shell, the inflatable bag and the foam particle layer into a whole, combines the shaping and locating functions of the three in the shaping and shaping processes, improves the shaping and shaping effects of the locating pad, and is favorable for obtaining the locating effect with high consistency and stable shaping structure.

The technical solutions and the technical details disclosed in the embodiments of the present application are only examples to illustrate the inventive concept of the present application, and do not constitute a limitation on the technical solutions of the present application, and all the conventional changes, substitutions or combinations made on the technical details disclosed in the present application have the same inventive concept as the present application and are within the protection scope of the claims of the present application.

Claims

1. A location pad, comprising:

the inflatable bags are arranged inside the outer shell and distributed between the first panel and the second panel; the inflatable bag is connected with an inflating nozzle, and the inflating nozzle is communicated with the outside of the outer shell;

a layer of foam particles disposed inside the outer shell and distributed between the first panel and the second panel.

2. The placemat of claim 1, wherein the outer casing is made from two coated low temperature thermoplastic sheets.

3. The placemat of claim 1, wherein the outer casing is made from a sheet of coated low temperature thermoplastic sheet.

4. The placemat of claim 1, wherein the airbag is made of an elastic or thermoplastic material.

5. The placemat of claim 1, wherein the foam pellets are resilient or plastic foam pellets.

6. The placemat of claim 1, wherein the airbag is disposed adjacent to the first panel and is sized to correspond to the first panel.

7. The placemat of claim 6, wherein the layer of foam particles is disposed between the airbag and the second panel, the layer of particle foam being comparable in size to the airbag.

8. The placemat of claim 1, wherein the foam particle layer is formed of foam particles and a pressure-sensitive adhesive layer coated on the surface of the foam particles.

9. The positioning mat of claim 1, wherein the edge of the outer shell is provided with a cloth border.

10. The placemat of claim 1, wherein the airbag is adhesively bonded to the first panel.