Pressurizing sleeve for infusion bag
By designing a pressure sleeve for infusion bags, a semi-automatic pressurization of the infusion bags is achieved using an air pump and a pressure sensor. This solves the problems of inconvenience and uncontrollable pressurization in existing technologies, enabling visualization and flexible control of the infusion rate and reducing resource waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF NAVAL MEDICAL UNIVERSITY OF CHINESE PEOPLES LIBERATION ARMY
- Filing Date
- 2025-02-06
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, manually squeezing the infusion bag is time-consuming, laborious, and inconvenient. The pressure control is not precise, the pressurization caused by the chemical reaction is uncontrollable, and the device cannot be reused, wasting resources. It is also impossible to adjust the pressure and infusion rate according to the patient's condition.
Design a pressure sleeve for infusion bags, including a pressure sleeve body, an air pump, a pressure adjustment device, a pressure sensor, and a display screen. The air pump inflates the air bag to achieve semi-automatic pressurization, and the pressure sensor measures and displays the pressure in real time. It is suitable for different infusion scenarios and supports repeated use.
It enables visualized pressure control of infusion bags, is suitable for different infusion scenarios, reduces material waste, adapts to individual patient differences, and improves the accuracy and convenience of infusion rate regulation.
Smart Images

Figure CN224180034U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical auxiliary device technology, specifically relating to a pressure sleeve for infusion bags. Background Technology
[0002] Currently, disposable infusion sets and infusion bags are commonly used for intravenous infusions in clinical practice. However, in clinical practice, we often encounter critically ill patients who require faster infusion rates during resuscitation or treatment. Even when the infusion valve is opened to its maximum, the flow rate cannot meet the requirements, which brings great inconvenience to resuscitation and treatment.
[0003] To further accelerate the infusion rate of the IV bag, the following methods are currently used:
[0004] (1) A designated person squeezes the infusion bag to speed up the infusion rate.
[0005] (2) Referring to the prior art of Chinese patent CN112245710A, a disposable infusion bag with interlayer is used. The gas generated by the reaction between the chemical agents rapidly inflates the interlayer of the disposable infusion bag, thereby pressurizing the liquid in the infusion bag and accelerating the infusion rate.
[0006] However, the methods / devices for accelerating the infusion rate of infusion bags under the above-mentioned existing technologies have the following problems:
[0007] (1) Manually squeezing the infusion bag is time-consuming, laborious, and extremely inconvenient, causing some trouble in clinical work; at the same time, the pressure control is not precise enough, and the increase in pressure and the degree of increase in the infusion rate of the infusion bag cannot be displayed intuitively.
[0008] (2) The existing Chinese patent CN112245710A is a disposable pressurized infusion bag, which is not reusable, wastes resources, and is not environmentally friendly. Its pressurization method (the gas generated by the chemical reaction rapidly inflates the interlayer of the infusion bag to pressurize the liquid in the infusion bag) is too rapid. The pressurization amplitude during the pressurization process is uncontrollable and cannot be continuously and stably pressurized for a long time. At the same time, the pressure increase of the device and the degree of increase in the infusion rate of the infusion bag cannot be displayed intuitively. Since the gas generated by the chemical reaction is a fixed amount, the pressurization amplitude is also a fixed value. It is only applicable to specific infusion scenarios and cannot change the pressurization amplitude of the infusion bag according to the patient's actual physical condition and urgency, nor can it adjust the accelerated infusion rate of the infusion bag. Utility Model Content
[0009] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a pressure sleeve for infusion bags.
[0010] This utility model provides a pressure sleeve for infusion bags, characterized by: a pressure sleeve body, which is a hollow bag-like structure; an opening at one end of the pressure sleeve body along the axial direction for embedding the infusion bag therein, and a through hole at the other end for the infusion port of the infusion bag to pass through; and a hollow interlayer on each of the two axial sides of the pressure sleeve body, the two hollow interlayers forming a first air bladder and a second air bladder respectively; an air pump, connected to the first air bladder and / or the second air bladder, for inflating them to cause the axial sides of the pressure sleeve body to expand, thereby compressing the infusion bag; a pressure adjustment device, connected to the air pump, for adjusting the amount of air pump supplying pressure to the first air bladder and / or the second air bladder; a pressure sensor, disposed inside the pressure sleeve body on the side in contact with the infusion bag, for measuring the pressure exerted by the pressure sleeve body on the infusion bag in real time; and a display screen, connected to the pressure sensor, for displaying the pressure value measured by the pressure sensor in real time.
[0011] The pressure sleeve for infusion bags provided by this utility model may also have the following feature: the pressure sleeve body is made of transparent material.
[0012] The pressure sleeve for infusion bags provided by this utility model may also have the following feature: the pressure sleeve body is provided with a transparent observation window for medical staff to observe the delivery of medicine in the infusion bag in real time.
[0013] The pressure sleeve for infusion bags provided by this utility model may also have the following feature: a hanging ring is provided at one end of the pressure sleeve body with an opening for hanging in the desired position.
[0014] The pressure sleeve for the infusion bag provided by this utility model may also have the following features: the pressure adjustment device has a pressure increase button and a pressure decrease button, which are used to increase and decrease the pressure of the air pump supplying air to the first air bag and / or the second air bag, respectively.
[0015] The pressure sleeve for infusion bags provided by this utility model may also have the following feature: the pressure sleeve for infusion bags further includes a movable storage battery, which is connected to and supplies power to each power-consuming component of the pressure sleeve for infusion bags.
[0016] The pressure sleeve for infusion bags provided by this utility model may also have the following feature: each power-consuming component of the pressure sleeve for infusion bags is connected to and powered by an external power source.
[0017] The pressure sleeve for the infusion bag provided by this utility model may also have the following features: the first airbag and the second airbag are not connected to each other, and the first airbag and the second airbag are respectively connected to the air pump through pipelines and pressurized by the air pump.
[0018] The pressure sleeve for infusion bags provided by this utility model may also have the following features: wherein the first airbag and the second airbag are connected through at least one passage passing through the body layer of the pressure sleeve, and at least one of the first airbag or the second airbag is connected to the air pump through a pipeline.
[0019] Functions and effects of utility models
[0020] The pressure sleeve for infusion bags according to this utility model includes: a pressure sleeve body, which is a hollow bag-shaped structure. One end of the pressure sleeve body along the axial direction has an opening for the infusion bag to be embedded therein, and the other end has a through hole for the infusion port of the infusion bag to pass through. Each of the two axial sides of the pressure sleeve body has a hollow interlayer, and the two hollow interlayers respectively form a first air bladder and a second air bladder; an air pump, which is connected to the first air bladder and / or the second air bladder, for inflating them to cause the axial sides of the pressure sleeve body to expand, thereby squeezing the infusion bag; a pressure adjustment device, which is connected to the air pump, for adjusting the amount of air pump supplying air to the first air bladder and / or the second air bladder; a pressure sensor, which is disposed inside the pressure sleeve body on the side in contact with the infusion bag, for measuring the pressure exerted by the pressure sleeve body on the infusion bag in real time; and a display screen, which is connected to the pressure sensor, for displaying the pressure value measured by the pressure sensor in real time.
[0021] Therefore, the pressure sleeve for the infusion bag of this utility model has the following beneficial effects: (1) The pressure sleeve for the infusion bag can be reused. After a patient finishes using it, the pressure sleeve for the infusion bag can be disinfected and then used for the next patient, avoiding unnecessary material waste; (2) The pressure of the infusion bag can be semi-automatically adjusted without manual pressure. It is suitable for different infusion scenarios, so as to change the pressure of the infusion bag according to the patient's actual physical condition and urgency, and thus quickly adjust the infusion rate of the infusion bag; (3) The pressure of the infusion bag can be observed through the pressure sensor and the display screen, so that the infusion rate of the infusion bag is intuitively visualized. Attached Figure Description
[0022] Figure 1 This is a perspective view of the pressure sleeve for the infusion bag according to Embodiment 1 of this utility model;
[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0024] Figure 3 This is an axial cross-sectional view of the pressure sleeve for the infusion bag according to Embodiment 1 of this utility model;
[0025] Figure 4 yes Figure 1 A 3D image from another angle;
[0026] Figure 5 This is a radial cross-sectional view of the pressure sleeve for the infusion bag at a certain depth in the axial direction of Embodiment 1 of this utility model;
[0027] Figure 6 yes Figure 5 Enlarged view of point B in the middle;
[0028] Figure 7 This is a radial cross-sectional view of the pressure sleeve for the infusion bag at another depth in the axial direction according to Embodiment 1 of this utility model;
[0029] Figure 8 yes Figure 7 Enlarged view of point C in the middle;
[0030] Figure 9 yes Figure 3 Enlarged view at point D;
[0031] Figure 10 This is a perspective view of the pressure sleeve for the infusion bag according to Embodiment 2 of this utility model. Detailed Implementation
[0032] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, provide a detailed description of the pressure sleeve for the infusion bag of this utility model.
[0033] <Example 1>
[0034] Figure 1 This is a perspective view of the pressure sleeve for the infusion bag according to Embodiment 1 of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is an axial cross-sectional view of the pressure sleeve for the infusion bag according to Embodiment 1 of this utility model.
[0035] like Figures 1-3 As shown, this utility model provides a pressure sleeve 100 for infusion bags, including a pressure sleeve body 10, an air pump 20, a pressure adjustment device 30, a pressure sensor 40, a display screen 50, and a movable storage battery (not shown in the figure).
[0036] Figure 4 yes Figure 1 A 3D image from another angle; Figure 5 This is a radial cross-sectional view of the pressure sleeve for the infusion bag at a certain depth in the axial direction of Embodiment 1 of this utility model; Figure 6 yes Figure 5 Enlarged view of point B in the middle.
[0037] like Figures 1-6As shown, the pressure sleeve body 10 is a hollow transparent bag-shaped structure, which has an opening 10a, a through hole 10b, a hanging ring 10c, a first airbag 10d and a second airbag 10e.
[0038] The opening 10a is located at one end of the pressure sleeve body 10 along the axial direction and is used for embedding the infusion bag therein.
[0039] The through hole 10b is located at the other end of the pressure sleeve body 10 along the axial direction, and is used for the infusion port of the infusion bag to pass through.
[0040] The hanging ring 10c is located at one end of the pressure sleeve body 10 with an opening 10a, and is used to suspend the entire pressure sleeve body 10 in the desired position.
[0041] The pressure sleeve body 10 has a hollow interlayer on each of its two axial sides, and the two hollow interlayers form the first airbag 10d and the second airbag 10e, respectively.
[0042] Figure 7 This is a radial cross-sectional view of the pressure sleeve for the infusion bag at another depth in the axial direction according to Embodiment 1 of this utility model; Figure 8 yes Figure 7 Enlarged view of point C in the middle; Figure 9 yes Figure 3 Enlarged view of point D in the middle.
[0043] like Figures 1-9 As shown, the first airbag 10d and the second airbag 10e are connected by two passages 10f that pass through the interlayer of the pressurized sleeve body 10, thereby balancing the pressure in the first airbag 10d and the second airbag 10e.
[0044] The air pump 20 is connected to the first airbag 10d through the pipe 21 that passes through the bottom of the pressurization sleeve body 10, thereby pressurizing the first airbag 10d.
[0045] The pressure adjustment device 30 is connected to the air pump 20 via a circuit. The pressure adjustment device 30 has a pressure increase button 30a and a pressure decrease button 30b, which are used to increase and decrease the pressure of the air pump 20 supplying air to the first airbag 10d, respectively.
[0046] The pressure sensor 40 is located inside the pressure sleeve body 10 on the side that contacts the infusion bag. When the first air bladder 10d and the second air bladder 10e inflate, the pressure sensor 40 is used to measure the pressure exerted by the pressure sleeve body 10 on the infusion bag in real time.
[0047] The display screen 50 is connected to the pressure sensor 40 and displays the pressure value measured by the pressure sensor 40 in real time. Specifically, in this embodiment, the display screen 50 and the pressure adjustment device 30 are integrated into the same unit.
[0048] A portable battery (not shown in the figure) is connected to and supplies power to the various power-consuming components of the infusion bag pressurizing sleeve 100.
[0049] Instructions for using the pressure sleeve 100 for infusion bags:
[0050] First, the infusion bag is inserted into the pressure sleeve body 10 through the opening 10a, and the infusion port of the infusion bag is inserted through the through hole 10b.
[0051] Subsequently, by adjusting the pressure adjustment device 30, the pressure applied by the air pump 20 to the first airbag 10d and the second airbag 10e is increased, thereby changing the degree of expansion and deformation on both sides of the pressure sleeve body 10 along the axis, and finally pressurizing the infusion bag embedded therein, thereby increasing the infusion rate of the infusion bag.
[0052] In this step, the pressure sleeve body 10 can also be suspended at the desired position via the hanging ring 10c.
[0053] During the infusion process, the actual pressure of the infusion bag measured by the pressure sensor 40 can be observed in real time through the display screen 50, so as to have an intuitive understanding of the infusion rate of the infusion bag and continue to adjust the pressure adjustment device 30 until the accelerated infusion rate of the infusion bag reaches the required rate.
[0054] <Example 2>
[0055] For ease of explanation, the same symbols are used for structures identical to those in Embodiment 1, and the same descriptions are omitted in this embodiment.
[0056] Figure 10 This is a perspective view of the pressure sleeve for the infusion bag according to Embodiment 2 of this utility model.
[0057] like Figure 10 As shown, this embodiment provides a pressure sleeve 101 for infusion bags, including a pressure sleeve body 10', an air pump 20, a pressure adjustment device 30, a pressure sensor 40, a display screen 50, and a movable battery (not shown in the figure).
[0058] The pressure sleeve body 10' is a hollow, transparent bag-like structure, which has an opening 10a, a through hole 10b, a hanging ring 10c, a first airbag 10d, and a second airbag 10e.
[0059] The arrangement of the opening 10a, through hole 10b, hanging ring 10c, first airbag 10d, and second airbag 10e is largely similar to that in Embodiment 1, and will not be repeated. The only difference is that the first airbag 10d and the second airbag 10e in this embodiment are not directly connected to each other, that is, the pressure sleeve body 10' in this embodiment does not have the passage 10f in Embodiment 1.
[0060] The air pump 20 is connected to the first airbag 10d and the second airbag 10e respectively through two pipes 21' that pass through the bottom of the pressurizing sleeve body 10, thereby pressurizing the first airbag 10d and the second airbag 10e respectively.
[0061] The arrangement of the pressure adjustment device 30, pressure sensor 40, display screen 50, and movable battery (not shown in the figure) is generally similar to that in Embodiment 1, and will not be repeated here.
[0062] The usage process of the pressure sleeve 101 for the infusion bag in this embodiment is largely similar to that of the pressure sleeve 100 for the infusion bag in Embodiment 1, and will not be repeated here.
[0063] The role and effect of the embodiments
[0064] A pressure sleeve for an infusion bag according to this embodiment includes: a pressure sleeve body, which is a hollow bag-shaped structure. One end of the pressure sleeve body along the axial direction has an opening for the infusion bag to be embedded therein, and the other end has a through hole for the infusion port of the infusion bag to pass through. Each of the two axial sides of the pressure sleeve body has a hollow interlayer, and the two hollow interlayers respectively form a first air bladder and a second air bladder; an air pump, which is connected to the first air bladder and / or the second air bladder, for inflating them to cause the axial sides of the pressure sleeve body to expand, thereby squeezing the infusion bag; a pressure adjustment device, which is connected to the air pump, for adjusting the amount of air pump supplying air to the first air bladder and / or the second air bladder; a pressure sensor, which is disposed inside the pressure sleeve body on the side in contact with the infusion bag, for measuring the pressure exerted by the pressure sleeve body on the infusion bag in real time; and a display screen, which is connected to the pressure sensor, for displaying the pressure value measured by the pressure sensor in real time.
[0065] Therefore, the pressure sleeve for the infusion bag in this embodiment has the following beneficial effects: (1) The pressure sleeve for the infusion bag can be reused. After a patient finishes using it, the pressure sleeve for the infusion bag can be disinfected and then used for the next patient; (2) The pressure of the infusion bag can be semi-automatically adjusted without manual pressure. It is suitable for different infusion scenarios, so as to change the pressure of the infusion bag according to the patient's actual physical condition and urgency, and thus quickly adjust the infusion rate of the infusion bag; (3) The pressure of the infusion bag can be observed through the pressure sensor and the display screen, so that the infusion rate of the infusion bag is intuitively visualized.
[0066] Furthermore, the pressure sleeve itself is made of transparent material. This design allows medical staff to observe the delivery of medication in the infusion bag in real time, so as to understand the remaining amount of medication.
[0067] Furthermore, a hanging loop is provided at the open end of the pressure sleeve body. This design allows medical staff to easily suspend the infusion bag in the desired position using the pressure sleeve.
[0068] Furthermore, the pressure adjustment device has a pressure increase button and a pressure decrease button, which are used to increase and decrease the pressure applied by the air pump to the first and second airbags, respectively. This configuration makes the pressure applied by the air pump to the first and second airbags adjustable, thereby allowing the increase in the infusion rate to be controlled.
[0069] Furthermore, the pressure sleeve for the infusion bag also includes a removable battery that connects to and powers the various power-consuming components of the pressure sleeve. This design increases the portability of the entire pressure sleeve for the infusion bag without requiring a fixed power source.
[0070] Furthermore, the first and second airbags are connected through at least one passageway between the layers of the pressurizing sleeve body, and at least one of the first or second airbags is connected to the air pump through a pipeline. This arrangement in Embodiment 1 ensures that the air pressure between the first and second airbags is balanced, allowing for more uniform compression and pressurization of the infusion bag.
[0071] Furthermore, the first and second airbags are not interconnected. Each airbag is connected to an air pump via a pipeline, and the air pump supplies air for pressurization. This configuration in Example 2 allows the first and second airbags to expand independently, compressing the infusion bag and preventing the entire infusion bag from failing to pressurize if one of them is damaged.
[0072] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pressurizing jacket for an infusion bag, characterized by, include: The pressure sleeve body is a hollow, bag-like structure. One end of the pressure sleeve body has an opening along the axial direction for the infusion bag to be inserted therein, and the other end has a through hole for the infusion port of the infusion bag to pass through. The pressure sleeve body has a hollow interlayer on each of its two axial sides, and the two hollow interlayers form the first airbag and the second airbag respectively. An air pump, connected to the first airbag and / or the second airbag, is used to inflate the airbag to expand the axial sides of the pressure sleeve body, thereby squeezing the infusion bag. A pressure adjustment device, connected to the air pump, is used to adjust the pressure of the air pump supplying air to the first airbag and / or the second airbag. A pressure sensor is disposed inside the pressure sleeve body on the side that contacts the infusion bag, and is used to measure the pressure exerted by the pressure sleeve body on the infusion bag in real time; A display screen, connected to the pressure sensor, is used to display the pressure value measured by the pressure sensor in real time.
2. The pressure sleeve for infusion bags according to claim 1, characterized in that: wherein The pressure sleeve body is made of transparent material.
3. The pressure sleeve for infusion bags according to claim 1, characterized in that: in, The pressure sleeve body is equipped with a transparent observation window, which allows medical staff to observe the delivery of the medicine in the infusion bag in real time.
4. The pressure sleeve for infusion bags according to claim 1, characterized in that: in, The pressure sleeve body has a hanging ring at one end with the opening for suspension at the desired position.
5. The pressure sleeve for the infusion bag according to claim 1, characterized in that: in, The pressure adjustment device has a pressure increase button and a pressure decrease button, which are used to increase and decrease the pressure of the air pump supplying air to the first airbag and / or the second airbag, respectively.
6. The pressure sleeve for the infusion bag according to claim 1, characterized in that: in, The pressure sleeve for the infusion bag also includes a movable storage battery, which is connected to and supplies power to each of the power-consuming components of the pressure sleeve for the infusion bag.
7. The pressure sleeve for infusion bags according to claim 1, characterized in that: in, The various power-consuming components of the pressure sleeve used for the infusion bag are connected to and powered by an external power source.
8. The pressure sleeve for infusion bags according to claim 1, characterized in that: wherein The first airbag and the second airbag are not connected to each other. The first airbag and the second airbag are respectively connected to the air pump through pipelines, and are pressurized by the air pump.
9. The pressure sleeve for the infusion bag according to claim 1, characterized in that: in, The first airbag and the second airbag are connected by at least one passageway passing through the layers of the pressurized sleeve body. At least one of the first airbag or the second airbag is connected to the air pump via a pipeline.
Citation Information
Patent Citations
Infusion bag capable of realizing rapid pressurization
CN112245710A