CN219614588U - Infusion auxiliary device - Google Patents

Abstract

The utility model relates to an infusion auxiliary device, which comprises an auxiliary device body, wherein the auxiliary device body comprises a laminated structure formed by laminating a base cloth layer and a paste layer, an air bag is arranged in the auxiliary device body structure, a control valve which allows air to flow unidirectionally is arranged on the surface of a first air bag, close to the base cloth layer, of the air bag, and the valve clacks of each control valve can determine the connection or the disconnection of the control valve; the balloon is configured to change in volume according to the amount of gas within the balloon, to assume a compressed state when no gas is present within the balloon, and to assume an inflated state when gas is present within the balloon. Can continuously generate pressure to the intravenous infusion puncture area of the patient, achieves the effect of automatically pressing hemostasis after needle withdrawal of medical staff, does not need the patient to automatically press hemostasis, and ensures the hemostatic effect of pressing the patient when the patient moves conveniently.

Description

Infusion auxiliary device

Technical Field

The utility model relates to the field of infusion auxiliary devices, in particular to an infusion auxiliary device.

Background

Intravenous infusion is a medical technique in which liquids, drugs and nutrients are directly infused into the veins of the human body. The earliest intravenous therapy records were traced back to the 15 th century, but intravenous infusion was not universally used until the 20 th century. In the process of intravenous infusion, in order to avoid displacement of an infusion catheter and an infusion needle, an adhesive tape or an infusion patch is adopted for fixation at present.

CN 202538052U provides a novel medical infusion subsides, and this infusion subsides include needle stalk fixed adhesive tape, transfer line fixed adhesive tape and do not paste the tectorial membrane, and needle stalk fixed adhesive tape and transfer line fixed adhesive tape all include the basic unit that is formed by the cotton preparation and the glue film of coating at basic unit internal surface, and needle stalk fixed adhesive tape still includes the hemostatic cushion that the surface is equipped with silver ion coating, and hemostatic cushion is located glue film middle part. The transfusion patch base layer is made of cotton cloth with air permeability, and the adhesive layer is provided with air holes, so that the air permeability of the adhesive tape is improved, and the air permeability is good; the surface of the hemostatic soft cushion is provided with a silver ion coating, so that the hemostatic soft cushion has an antibacterial effect and can prevent infection.

However, existing infusion fixation devices still suffer from at least one or more of the following: 1) After transfusion, patients often need to self-press the cotton swab to stop bleeding for at least 5 minutes, which brings great inconvenience to the patients with inconvenient movement, poor self-care ability or coagulation dysfunction and other diseases. In addition, most patients do not have professional nursing knowledge, the pressing force, area and time are difficult to master by themselves, and the hemostatic effect is difficult to expect; 2) A larger gap exists between the adhesive tape or the infusion patch and the infusion catheter, on one hand, the infusion catheter cannot be well fixed, and on the other hand, the risk of infection of patients is increased due to the existence of the gap; 3) Intravenous injection is an invasive treatment, and the needle penetration area is often uncomfortable, red and swollen, and inflammation in severe cases.

Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents while making the present utility model, the text is not limited to details and contents of all but it is by no means the present utility model does not have these prior art features, but the present utility model has all the prior art features, and the applicant remains in the background art to which the right of the related prior art is added.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an infusion auxiliary device, which aims at solving at least one or more technical problems existing in the prior art.

In order to achieve the above object, the present utility model provides an infusion assisting device, comprising at least: the auxiliary device body comprises a layered structure formed by laminating a base cloth layer and a pasting layer, and is characterized in that an air bag is arranged in the structure of the auxiliary device body, a control valve allowing one-way circulation of air is arranged on the surface of the air bag, close to the first air bag of the base cloth layer, of the air bag, the control valve comprises an air flow channel formed by extending in the radial direction, a plurality of valve clacks and a valve body base forming a containing relation with the valve clacks in the radial direction, and the valve clacks are configured to be capable of realizing switching between a first working state and a second working state based on pressure difference inside and outside the air bag.

Preferably, the auxiliary device body further comprises a protective device disposed on the surface of the base fabric layer, and the protective device comprises a first protective layer and a second protective layer which can be partially overlapped with each other along the lamination direction of the base fabric layer and the adhesive layer; the first and second protective layers are configured to deform in a direction away from the base fabric layer, and the deformability of the first and second protective layers is less than the deformability of the bladder.

Preferably, in the first working state, the valve flaps are mutually abutted to form a closed wall surface, so that the gas circulation inside and outside the air bag can be cut off; in the second working state, gaps exist between the valve clacks of the blades, and gas inside and outside the air bag can be allowed to circulate.

Preferably, the auxiliary device body provides a receiving area for the airbag in such a manner that the base cloth layer is partially hollowed out in the lamination direction thereof.

Preferably, a plurality of the valve flaps are elastically conformable to each other in a circumferential inward direction of the airflow passage.

Preferably, the air bag is configured to change in volume according to the amount of air in the air bag, wherein when no air exists in the air bag, the first air bag surface of the air bag close to the base cloth layer is closely attached to the second air bag surface of the air bag close to the adhesive layer, the air bag is in a compressed state, and when air exists in the air bag, the first air bag surface and the second air bag surface deform towards directions away from each other, and the air bag is in an expanded state.

Preferably, a dressing layer is provided between the second balloon surface of the balloon and the adhesive layer.

Preferably, a notch is formed inward on a certain edge of the base cloth layer, wherein the notch is configured to form a shape which does not interfere with the outer wall of the infusion catheter or the luer connector.

Preferably, the valve flap is made of an elastic material.

Preferably, the intersection of the edges of the backing layer and the adhesive layer is configured in the form of a chamfer having a certain or varying curvature.

Preferably, a layer of pressure sensitive material is provided along a part or all of the edge region of the adhesive layer adjacent to the auxiliary device body.

The beneficial technical effects of the utility model are as follows:

1. after the needle is pulled out by medical staff, a control valve which is arranged on the surface of the air bag and only allows air flow to pass through unidirectionally is opened, so that the air bag which is originally in a vacuum compression state is expanded, pressure is continuously generated on a intravenous infusion puncture area of a patient, the effect of automatic hemostasis is achieved, the patient does not need to press the air bag by himself, and the hemostatic effect of the air bag pressed by the air bag is guaranteed while the patient moves conveniently;

2. and arranging a protection device on the surface of the base cloth layer. On the one hand, the air bag is protected from being damaged by sharp objects; on the other hand, the maximum deformation capacity of the protection device is smaller than that of the air bag, so that the maximum deformation state of the air bag can be limited, and the air bag is prevented from being damaged due to deformation exceeding the maximum deformation capacity of the air bag;

3. the edge of the base cloth layer is internally provided with a notch which is matched with the shape of the infusion catheter or the luer connector, so that the adhesive layer can be directly attached to the skin of a patient without generating a gap, the close attachment of the auxiliary device body and the skin of the patient is ensured, the proliferation conditions of bacteria and viruses are destroyed, and the risk of infection of the patient is reduced; in addition, the adhesive layer is not directly adhered or covered on the surface of the luer connector any more, and medical staff or patients can intuitively judge whether the luer connector is in a normal working state or not, so that an abnormal infusion state can be timely found and released;

4. the dressing layer is arranged, firstly, the medical dressing has good ductility and softness, can disperse the pressure from the balloon in an expanded state, and avoids the discomfort to a patient and even damage to blood vessels caused by overlarge local pressure after the balloon is inflated; secondly, the dressing layer can effectively isolate external dust and germs, ensure that the needle puncture area is in a sterile state, and avoid infection of wounds of patients; thirdly, the medical dressing can make the skin of the human body generate cool feeling, thereby relieving the swelling and discomfort of the puncture part of the infusion needle; fourth, the dressing can absorb secretions at the wound and blood exuded from the puncture area, keep the skin of the patient in a clean state, and avoid infection and inflammation.

5. A pressure sensitive material layer is provided along a part or all of the edge area of the adhesive layer near the auxiliary device body. Firstly, the fingers of medical staff can be prevented from being mistakenly stuck by the sticking layer with larger viscosity; second, the accessible peels off the pressure sensitive material layer that is in auxiliary device body border position, takes the whole patient's skin surface away of pasting layer, has improved pasting layer's tearing convenience, has improved medical personnel's work efficiency and work experience.

Drawings

FIG. 1 is a top view of an infusion assist device provided in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic view of the overall structure of an infusion assisting device according to an embodiment of the utility model;

FIG. 3 is a schematic back view of an infusion assist device provided in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic view of a control valve of an infusion assisting device according to an embodiment of the utility model;

FIG. 5 is a schematic view of section A-A of an infusion assist device in an uninflated state, in accordance with an embodiment of the utility model;

fig. 6 is a schematic view of section A-A of an infusion assisting device in an inflated state according to an embodiment of the utility model.

List of reference numerals

1: an auxiliary device body; 2: a base cloth layer; 3: an air bag; 4: a control valve; 5: a notch; 6: an adhesive layer; 7: a dressing layer; 8: a protection device; 41: a valve body base; 42: a valve flap; 43: an air flow channel; 61: a layer of pressure sensitive material; 81: a first protective layer; 82: and a second protective layer.

Detailed Description

The following detailed description refers to the accompanying drawings.

The utility model provides an infusion auxiliary device, as shown in fig. 1-2, which comprises an auxiliary device body 1, wherein the auxiliary device body comprises a laminated structure formed by overlapping a base cloth layer 2 and an adhesive layer 6. An area for accommodating the airbag 3 is formed by partially removing the base fabric layer 2 along the lamination direction of the auxiliary device body 1, and a control valve 4 for allowing only one-way gas flow is provided on the first airbag surface of the airbag 3 adjacent to the base fabric layer 2. The control valve 4 comprises an airflow channel 43 formed by extending in the radial direction, a plurality of valve clacks 42 and a valve body base 41 formed in an inclusion relation with the valve clacks 42 in the radial direction, wherein each valve clack 42 is configured to be capable of realizing switching between a first working state and a second working state based on the pressure difference between the inside and the outside of the air bag 3. In the first operation state, the valve flaps 42 are abutted against each other to form a closed wall surface, so that the gas flow inside and outside the airbag 3 can be cut off, and in the second operation state, a gap is provided between the valve flaps 42, so that the gas flow inside and outside the airbag 3 can be allowed.

Before use, the air bag 3 is in a state of being vacuumized in advance, the external pressure of the air bag 3 is larger than the internal pressure of the air bag 3, the valve clacks 42 are in a first working state of abutting against each other to form a sealed concave wall surface, the control valve 4 is in a closed state, and the air outside the air bag 3 cannot enter the air bag, namely, the air bag 3 can be kept in a vacuum compressed state. After transfusion, medical staff applies external force to the valve clack 42, because the valve clack 42 is made of elastic material, the valve clack 42 can be obviously deformed after being subjected to external force, the mutually propped state of each valve clack 42 is destroyed, namely, each valve clack 42 is switched to the second working state, the sealed concave wall surface does not exist, the control valve 4 is in a conducting state, air with high pressure outside the air bag 3 can enter the air bag 3, the air bag 3 generates a trend of volume expansion, further, because the deformability of the base cloth layer 2 is far smaller than that of the air bag 3, the air bag 3 is restrained from deforming towards the base cloth layers 2 propped against the two sides of the base cloth layer, so that the air bag 3 generates volume expansion along the normal direction similar to the skin of a patient, further, pressure is generated on the corresponding skin area of the patient, the effect of automatically pressing hemostasis after needle pulling by the medical staff is achieved, the patient is not required to press hemostasis by oneself, the hemostatic effect of pressing the patient is also guaranteed while the patient is convenient to move.

Further, as shown in fig. 5 to 6, a protective device 8 is disposed on the surface of the base fabric layer 2, and the protective device 8 includes a first protective layer 81 and a second protective layer 82 that can partially overlap each other in the lamination direction of the base fabric layer 2 and the adhesive layer 6. The first protective layer 81 and the second protective layer 82, which are overlapped with each other, can protect the balloon 3 from sharp objects.

Further, the first and second protective layers 81 and 82 are configured to be deformable in a direction away from the base cloth layer 2, and the deformability of the first and second protective layers 81 and 82 is smaller than that of the balloon 3. On the one hand, the first protective layer 81 and the second protective layer 82 are configured to be deformable, so that the first protective layer 81 and the second protective layer 82 can spatially realize the inclusion relation to the air bag 3, so that the protective device 8 does not lose the protective effect to the air bag 3 in the state that the air bag 3 is expanded; on the other hand, the deformability of the first and second protective layers 81, 82 is smaller than that of the balloon 3, so that the protective means 8 can act as a limit to the maximum deformation state of the balloon 3, avoiding the balloon 3 from being damaged by deformation that exceeds its maximum deformability, for example.

Further, the valve flap 42 is made of vulcanized rubber. The vulcanized rubber has a good rebound memory function and good durability, so that the tightness of the control valve 4 in a closed state is ensured.

Further, in order to avoid the control valve 4 from being opened by mistake due to the erroneous contact with the valve flap 42, a valve cover having a shape adapted thereto may be provided in an area above the valve flap 42.

According to a preferred embodiment, the external force applied to the valve flap 42 may be in the form of a manual pump. The manual pump has the advantages that on one hand, medical staff can freely adjust the pressure in the air bag 3, for example, the pressure in the air bag 3 can be adjusted to be higher than the atmospheric pressure, and larger compression hemostasis force is generated, so that the manual pump can be used for compression hemostasis of patients with weak blood coagulation function and the like; on the other hand, the manual pump does not need an external power supply, has a small structure, is convenient for medical staff to carry, has low noise during use, and is suitable for ward scenes with higher requirements on the quietness degree of the environment.

According to a preferred embodiment, the external force applied to the valve flap 42 may be in the form of an electric pump. The electric pump has the advantages that the electric pump is high in inflation efficiency, medical staff is not required to inflate manually, and the physical strength of the medical staff is saved.

According to a preferred embodiment, the cavity of the air bag 3 is in a disc shape after being expanded. The disc structure has good stress condition, can ensure that the pressure applied to the skin of a patient is basically consistent after the cavity of the air bag 3 is expanded, can not generate the condition that the compression force of a certain area is particularly large, and improves the experience of the patient in the intravenous transfusion process.

According to a preferred embodiment, the intersection points of the edges of the base fabric layer 2 and the adhesive layer 6 adopt a chamfer form with a certain or variable curvature, and compared with a sharp end point form such as a right angle, the sharp end point form concentrates stress at the end point, so that the auxiliary device body 1 is easy to edge.

According to a preferred embodiment, the curvature of the chamfer may be a standard arc or an elliptical arc.

According to a preferred embodiment, the air bag 3 is made of transparent material, so that a medical staff can observe the relative position of the infusion needle and the auxiliary device body 1, the covering and fixing of the infusion needle, the infusion catheter and the like are facilitated, and the working efficiency and accuracy of the medical staff are improved. In particular, since the skin surface of the human body is not completely smooth but has various directions of ravines, a gradual and slow pressing manner is often adopted by medical staff in order to firmly adhere the infusion fixing device to the skin of a patient, however, the fixing manner is not only low in efficiency, but also has the possibility of mistakenly touching the infusion needle during the pressing process of the medical staff, which can cause secondary injury to blood vessels of the patient. The utility model provides the transparent air bag 3, which is convenient for medical staff to observe and work, and reduces the probability of secondary injury to patients caused by intravenous infusion.

According to a preferred embodiment, the base fabric layer 2 may be made of polyurethane nonwoven fabric, which has moderate elasticity and can be well fitted with human skin.

According to a preferred embodiment, a notch 5 is formed inwards on a certain edge of the base cloth layer 2, and the shape of the notch 5 can be matched with that of an infusion catheter or a luer connector, namely, the shape of the notch 5 can ensure that the notch does not form interference with the outer wall of the infusion catheter or the luer connector. When in use, the medical staff firstly aligns the notch 5 with the infusion catheter, the luer connector and the like, and then gently presses the adhesive layer 6 on the skin of a patient, thereby realizing the fixing function of the auxiliary device body 1. Because the existing transfusion fixing device often has the problem that a gap exists between the transfusion fixing device and the skin of a patient when the transfusion catheter, the transfusion needle head and the like are stuck to the skin of the patient, the gap brings at least the problems that: 1) The sealing property of the infusion fixing device and the puncture area of the patient is damaged, conditions are created for the proliferation of bacteria and viruses, the risk of infection of the patient is increased, and the infusion fixing device is a culprit for inducing phlebitis; 2) The infusion fixing device is directly adhered to and covers the luer connector, so that medical staff can hardly judge the working state of the luer connector, and leakage of conveying fluid can be caused even infection of a patient under the condition that the luer connector loses tightness. Therefore, the utility model provides that the edge of the base cloth layer 2 is internally provided with the notch 5 which is matched with the shape of the infusion catheter or the luer connector, so that the adhesive layer 6 can be directly adhered to the skin of a patient without generating a gap, the close adhesion of the auxiliary device body 1 and the skin of the patient is ensured, the proliferation conditions of bacteria and viruses are destroyed, and the risk of infection of the patient is reduced; in addition, the adhesive layer 6 is not adhered or covered on the surface of the luer connector any more, and medical staff or patients can intuitively judge whether the luer connector is in a normal working state or not, so that abnormal transfusion states can be found and released in time.

According to a preferred embodiment, as shown in fig. 5 to 6, a dressing layer 7 is provided between the second balloon surface of the balloon 3 remote from the base layer 2 and the adhesive layer 6. The advantages of providing a dressing layer 7 are at least: 1) After transfusion, medical staff makes the air bag 3 in an expanded state, and as the dressing layer 7 has good ductility and softness, the air bag can be well attached to the skin surface of a human body, and the pressure of the air bag 3 in the expanded state can be dispersed, so that the local pressure of the air bag 3 is prevented from being excessively high after the air bag 3 is inflated, discomfort is brought to a patient, and even damage to blood vessels is caused; 2) The dressing layer 7 can isolate foreign matters such as external dust, bacteria and viruses, ensure that the needle puncture area is in a sterile state and avoid infection of wounds of patients; 3) The dressing layer 7 can generate cool feeling when contacting with the skin of a patient, so that swelling and discomfort of the puncture part of the infusion needle are relieved; 4) The dressing layer 7 can absorb secretions at the wound and blood exuded from the puncture area, and keep the skin of a patient in a clean state.

Further, the dressing layer 7 may be made of hydrocolloid dressing, alginate dressing or chitin gel with antibacterial and antiinflammatory functions.

According to a preferred embodiment, as shown in fig. 3, a layer 61 of pressure sensitive material is provided along a part or all of the edge area of the adhesive layer 6 near the auxiliary device body 1. When medical staff sticks the auxiliary device body 1 to the skin of a patient, the medical staff can hold the pressure-sensitive material layer 61 at the edge part of the auxiliary device body 1 by hand, and after the positioning is finished, the medical staff can realize the adhesion of the auxiliary device body 1 to the skin of the patient by pressing, so that the situation that the fingers of the medical staff are mistakenly stuck by the sticking layer 6 with larger viscosity is avoided, and the position of the auxiliary device body 1 is convenient to determine and adjust by the medical staff; after the compression hemostasis process is finished, the adhesive layer 6 can be integrally taken away from the skin surface of a patient by peeling the pressure sensitive material layer 61 at the edge part of the auxiliary device body 1, so that the tearing convenience of the adhesive layer 6 is improved. In addition, since the pressure sensitive material layer 61 is only arranged at the edge of the auxiliary device body 1, the proportion of the pressure sensitive material layer to the total adhesive area is small, the influence on the overall adhesive stability is small, the situation that the auxiliary device body 1 moves due to insufficient adhesive capability of the whole infusion patch is avoided, and the protection and fixing effects on the infusion needle are not lost.

According to a preferred embodiment, the pressure sensitive material layer 61 uses medical silk as a base material, and a layer of the silk layer close to the skin of the patient is coated with a medical pressure sensitive adhesive to form a pressure sensitive adhesive layer. The pressure-sensitive material layer 61 manufactured by the above process has proper viscosity and good biocompatibility, and is not easy to cause allergy to the skin of a patient.

According to a preferred embodiment, the adhesive layer 6 uses a non-woven adhesive tape as a base material, and a medical pressure-sensitive adhesive is coated on a layer of the silk layer close to the skin of a patient to form a pressure-sensitive adhesive layer. The pressure-sensitive material layer 61 manufactured by the process can still keep stronger adhesiveness after being adhered for a long time, the situation of separating from the skin of a patient can not be generated, and the fixing effect of the adhesive layer 6 is ensured.

It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents. The description of the utility model encompasses multiple inventive concepts, such as "preferably," "according to a preferred embodiment," or "optionally," all means that the corresponding paragraph discloses a separate concept, and that the applicant reserves the right to filed a divisional application according to each inventive concept.

Claims (10)

1. An auxiliary transfusion device comprises an auxiliary device body (1) which comprises a laminated structure formed by overlapping a base cloth layer (2) and an adhesive layer (6), and is characterized in that an air bag (3) is arranged in the structure of the auxiliary device body (1),

the device also comprises a control valve (4) which is arranged on the surface of the first air bag of the air bag (3) close to the base cloth layer (2) and allows the air to flow unidirectionally, wherein,

the control valve (4) comprises an airflow channel (43) formed by extending in the radial direction, a plurality of valve clacks (42) and a valve body base (41) formed in a containing relation with the valve clacks (42) in the radial direction,

wherein each valve flap (42) is configured to be capable of switching between a first working state and a second working state based on an air pressure difference between the inside and outside of the airbag (3);

the adhesive layer (6) is arranged on the surface of the base cloth layer (2), and the protective device (8) comprises a first protective layer (81) and a second protective layer (82) which can be partially overlapped with each other along the lamination direction of the base cloth layer (2) and the adhesive layer (6);

the first protective layer (81) and the second protective layer (82) are configured to be deformable in a direction away from the base cloth layer (2), and the deformability of the first protective layer (81) and the second protective layer (82) is smaller than the deformability of the balloon (3).

2. The infusion support device of claim 1, wherein,

in the first working state, the valve clacks (42) are mutually abutted against each other to form a closed wall surface because the air pressure outside the air bag (3) is larger than the air pressure inside the air bag, the air flow channel (43) is in a closed state, and the air outside the air bag (3) cannot enter the air bag;

in the second working state, the valve clacks (42) are deformed by external force, the state that the valve clacks are mutually abutted against is destroyed, the air flow channel (43) is in an open state, and the air outside the air bag (3) can enter the air bag.

3. The infusion support device according to claim 1, wherein a plurality of said flaps (42) are elastically conformable to each other in a circumferential inward direction of said airflow channel (43).

4. Infusion support device according to claim 1, characterized in that the support device body (1) provides a receiving area for the balloon (3) in such a way that the base layer (2) is partially hollowed out in its stacking direction.

5. Infusion support device according to claim 2, characterized in that the balloon (3) is configured to vary in volume according to its internal gas volume, wherein,

when no gas exists in the air bag (3), the first air bag surface of the air bag (3) close to the base cloth layer (2) is tightly attached to the second air bag surface of the air bag (3) close to the adhesive layer (6), the volume of the air bag (3) is in a compressed state,

when gas exists in the air bag (3), the first air bag surface and the second air bag surface deform towards the direction away from each other, and the air bag (3) is in an expanded state.

6. Infusion support device according to claim 5, characterized in that a dressing layer (7) is provided between the second balloon surface of the balloon (3) and the adhesive layer (6).

7. The infusion support device according to claim 1, wherein a notch (5) is provided inwardly at a certain edge of the base cloth layer (2), wherein,

the slot (5) is configured to not form an interference shape with the infusion catheter or luer connector outer wall.

8. Infusion aid according to claim 1, characterized in that the intersection of the edges of the backing layer (2) and the adhesive layer (6) is configured in the form of a chamfer with a certain or varying curvature.

9. Infusion aid according to claim 1, characterized in that the balloon (3) is made of transparent material.

10. Infusion support according to claim 1, characterized in that a layer (61) of pressure sensitive material is provided along part or all of the edge area of the adhesive layer (6) adjacent to the body (1) of the support.