Anti-blocking device for infusion apparatus

Abstract

The utility model discloses an anti-blocking device of an infusion apparatus, and belongs to the technical field of infusion devices. Comprising a sleeve and a support, a hollow cylindrical structure is formed in the sleeve; the hollow cylindrical structure penetrates through two ends of the sleeve; the infusion hose is arranged in the hollow cylindrical structure; a hollow interlayer is arranged in the side wall of the sleeve; upholders are arranged in the hollow interlayer and used for preventing the infusion hose in the sleeve from being pressed and knotted and bent. The utility model solves the problems that the existing protective sleeve for protecting the infusion hose is too hard, so that the adjustment range of motion of the infusion hose is not flexible enough; or the protection sleeve is too soft, and the protection effect cannot be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of infusion devices, and in particular relates to an anti-blocking device for an infusion set. Background Art

[0002] An infusion set is a common medical consumable. After being sterilized, the infusion set is used to establish a channel between the vein and the drug solution for intravenous infusion. The main components of the infusion set include: intravenous needle, infusion hose, flow rate regulator and drip pot. The infusion hose is usually made of PVC, and the tube itself is relatively soft and easily squeezed.

[0003] During the use of the infusion device, the infusion hose is often pressed by the patient himself or the medical staff at the bedside. After being squeezed, the infusion hose will be occluded and deformed at the compressed part, causing blockage of the infusion hose and resulting in poor infusion. If the infusion tube is not discovered under long-term squeezing and deformation, blood backflow may occur. For the infusion hose, in addition to the blockage caused by compression, the infusion hose may also be entangled, knotted or bent. If the entanglement and knotting are not discovered in time, the knot may be tightened and the liquid flow channel in the infusion hose may be completely cut off. In addition, knotting or bending blockage of the infusion tube may cause bubbles in the tube. Once the bubbles enter the human body, they may cause serious venous air embolism.

[0004] In the prior art, in order to solve the problem that the infusion hose is compressed or tangled during the infusion process, an outer protective tube of the infusion hose is provided, and the outer protective tube is wrapped around the outer circumference of the infusion hose to protect the infusion hose; however, in order to meet the problem of pressure protection or bending of the infusion hose, the outer protective tube provided by the prior art is usually made of a harder material. After the infusion hose is wrapped, the adjustment of the tube body is limited and inflexible; if the material of the outer protective tube is too hard, it may also affect the infusion hose, and the head end of the outer protective tube frequently rubs and contacts with the infusion hose, which may cause damage to the infusion hose; the above is the case where the material of the outer protective tube is too hard. If the material of the outer protective tube is too soft, although the flexibility of the infusion hose is guaranteed, the pressure resistance and the ability to prevent large-scale bending and tangling are poor. Utility Model Content

[0005] The utility model provides an infusion set anti-blocking device, which is designed as a sleeve structure, and the sleeve is made of a material with good flexibility; a hollow interlayer is arranged in the sleeve, and a plurality of supports are independently arranged in the hollow interlayer, and there is no connection between the supports; the infusion hose can be protected from being forcedly compressed by the supports; in addition, the sleeve itself is flexible, and the supports are independent of each other, so after the entire sleeve structure is wrapped around the outside of the infusion hose, it will not affect the normal position adjustment of the infusion hose, so that the infusion hose maintains flexibility; in addition, due to the presence of the supports in the sleeve, after the infusion hose is wrapped, it will not be significantly knotted, and the knot will not tighten and lock the infusion hose; the utility model solves the problem that the protective sleeve currently used to protect the infusion hose is too hard, resulting in insufficient flexibility in the adjustment of the infusion hose; or the protective sleeve is too soft and cannot play a protective role.

[0006] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0007] An anti-blocking device for an infusion set comprises: a sleeve and a support;

[0008] A hollow cylindrical structure is formed inside the sleeve; the hollow cylindrical structure runs through both ends of the sleeve; and the infusion hose is arranged in the hollow cylindrical structure;

[0009] A hollow interlayer is arranged inside the side wall of the sleeve;

[0010] The hollow interlayer is provided with supports to protect the infusion hose inside the sleeve from compression and knotting and bending.

[0011] Preferably, the support is a support ball structure, and a plurality of support balls are evenly arranged in the hollow interlayer of the sleeve.

[0012] Preferably, the arrangement structure of the support balls is as follows: the support balls are arranged in contact with the upper and lower sides of the hollow interlayer; starting from the end close to the sleeve head, the support balls are arranged in the interlayer at equal intervals in one circle to form a row; and then arranged in rows at equal intervals thereafter.

[0013] Preferably, the support is an airbag column structure, each airbag column is independently arranged in the hollow interlayer of the sleeve, and a plurality of airbag columns are evenly arranged in the hollow interlayer of the sleeve.

[0014] Preferably, the upper and lower ends of the airbag column are arranged in contact with the upper and lower sides of the hollow interlayer; starting from the end close to the sleeve head, the airbag columns are arranged in the interlayer at equal intervals to form a row; and then arranged in rows at equal intervals backwards.

[0015] Preferably, an electric heating plate is arranged on the inner wall of the sleeve in contact with the infusion hose, and the electric heating plate is covered with a waterproof isolation layer.

[0016] Preferably, the electric heating plate is connected to an electric control unit via a wire; the electric control unit is used to control the opening of the electric heating plate.

[0017] Preferably, the electric control unit is arranged on a fixing clip, and the fixing clip is clamped on the drip pot of the infusion set; the fixing clip comprises: a clamp body, a pressing sheet and an elastic ring;

[0018] The clamping body is symmetrically provided with two pieces, and the upper parts of the two pieces are hinged; when the two pieces are closed, they form a hollow cylindrical structure;

[0019] A pressing sheet is arranged on each clamping body, and an elastic ring is arranged between the two pressing sheets.

[0020] Preferably, a patch photosensitive sensor is arranged on the contact surface between the clamp and the drip pot; a signal amplifier, a digital converter and a microprocessor are integrated in the electric control unit; a battery and a control switch are arranged in the electric control unit;

[0021] The photosensor is communicatively connected to a signal amplifier, the signal amplifier is communicatively connected to a digital converter, and the digital converter is communicatively connected to a microprocessor.

[0022] Preferably, a transparent window is provided on the sleeve.

[0023] The beneficial effects of the utility model are:

[0024] The utility model provides an anti-blocking device for an infusion set, which is a sleeve, and an interlayer is arranged inside the sleeve, in which a plurality of independent supporting balls or supporting airbag columns are orderly arranged; the infusion set hose is placed in the sleeve, and under the action of the supporting balls or airbag columns, the infusion set hose can be prevented from being compressed and causing blockage; in addition, the supporting balls or airbag columns distributed in the sleeve can prevent the infusion set hose from being significantly knotted, and the infusion tube will be blocked after the knot is tightened.

[0025] The utility model provides an electric heating plate on the inner wall surface of the sleeve in contact with the infusion tube, and utilizes the electric heating plate to heat and keep the medicine in the infusion tube warm. It is used in a relatively low temperature environment to prevent part of the medicine from crystallizing at low temperature and accumulating and adhering to the infusion tube, which may cause a risk of blockage. Moreover, for the medicine that can be heated, it can be appropriately heated to a temperature close to body temperature to reduce the discomfort after infusion.

[0026] The utility model also designs a photosensitive sensor clamped on the drip pot for monitoring the dripping speed of the infusion. The dripping speed of the infusion is monitored during the infusion process, which is convenient for medical staff to observe the infusion rate in real time and make adjustments immediately when abnormalities occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the arrangement of the internal supports of the casing of the utility model;

[0030] Figure 3 This is a schematic diagram of a transparent window on the casing of the utility model;

[0031] Figure 4 It is a side view of the sleeve and its inner supporting ball of the utility model;

[0032] Figure 5 It is a side view of the sleeve and the air bag column inside the utility model;

[0033] Figure 6 This is a schematic diagram of the components and fixing clip structure in the electric control unit of the utility model;

[0034] In the accompanying drawings, the structural names represented by the reference numerals are:

[0035] 1-sleeve, 101-electric heating plate, 102-support ball, 103-wire docking interface, 104-transparent window, 105-air bag column, 106-opening, 2-drip rate monitor, 201-clamp, 202-pressing plate, 203-elastic ring, 204-wire, 205-chip photosensor, 206-signal amplifier, 207 digital converter, 208-microprocessor, 209-electronic control unit. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Example 1

[0038] An infusion set blockage prevention device comprises a sleeve 1 and a support;

[0039] The sleeve 1 itself is made of a flexible material, such as silicone rubber, polyurethane, etc. A hollow cylindrical structure is formed inside the sleeve 1, and the cylindrical hollow structure runs through both ends of the sleeve 1, that is, a smooth cylindrical channel is formed. The infusion hose needs to be placed in the above-mentioned cylindrical channel so that the sleeve 1 covers the infusion hose. In this way, under the protective effect of the sleeve 1, when the infusion line is compressed, it will not directly act on the infusion hose, causing the infusion hose to be compressed and blocked; the infusion set itself relies on the effect of gravity to infuse the drug solution into the patient's vein. Once the infusion hose is When a blockage occurs at a certain point on the bed, the infusion of the drug solution under the action of gravity will stop; during the infusion process, the most likely situation is that the patient presses on the infusion hose while turning over, causing blockage; or during surgery, when the patient is receiving infusion or blood transfusion, the infusion hose falls on the side of the bed, and the medical staff at the bedside squeezes the infusion hose against the side of the bed without noticing, which can also cause blockage of the infusion tube; therefore, the sleeve 1 is wrapped around the outside of the infusion hose, and when compression occurs, the compressive force first acts directly on the sleeve 1, and the infusion hose inside the sleeve 1 can avoid compression deformation and blockage.

[0040] In order to make the sleeve 1 have a better buffering and protective effect on the compressive force, the side wall of the sleeve 1 needs to have a certain thickness, so that the infusion hose in the sleeve 1 has a certain distance from the surface of the sleeve 1, and the compressive force acting on the infusion hose can be reduced to the greatest extent; however, considering the convenience of use and weight and other factors, the side wall of the sleeve 1 cannot be designed to be too thick, so that the weight of the sleeve 1 itself may be too heavy, and after being wrapped on the infusion hose, it will cause a downward dragging force on the infusion hose under the action of gravity; and the compromised thickness of the side wall of the sleeve 1 may not be able to completely block and protect against some excessive compressive forces or a sudden and sharp increase in force in a short period of time, and part of the force will still act on the infusion hose.

[0041] In order to further enhance the protective effect of the side wall of the sleeve 1 against the compressive force, a hollow sandwich structure is arranged inside the side wall of the sleeve 1, and a support is filled in the sandwich structure; the above-mentioned support can be made of a highly elastic material, and the highly elastic material can be used to buffer and absorb the generated compressive force, so that it can be consumed in the support layer and avoid being transmitted to the infusion hose inside the sleeve; with the support structure, the best state is that the compressive force acts on the sleeve 1, while the infusion hose inside the sleeve 1 has no effect at all, will not undergo any deformation, and the infusion of the liquid medicine in the infusion tube will not be affected.

[0042] The above-mentioned supports can be an integral structure arranged in the interlayer, and the supports themselves are filled in the interlayer of the sleeve 1 as a whole; or evenly distributed areas can be arranged in the interlayer, and supports are arranged on these areas to fill and cover the interlayer in all directions; it can cope with the compressive force generated in any direction.

[0043] like Figure 1 As shown, an opening 106 is provided on the side wall of the sleeve 1. When installing the sleeve 1, the infusion hose is inserted into the interior of the sleeve 1 through the opening 106. Since the sleeve 1 itself is made of a flexible material, when placing the infusion hose, the sleeve 1 can be slightly bent toward both sides at the opening to slightly widen the opening 106, so that the infusion hose can be conveniently inserted into the hollow structure inside the sleeve 1. When removing the sleeve 1 from the infusion hose, the sleeve 1 can also be bent at the opening 106 to widen the width of the opening 106, so that the infusion hose can be conveniently removed.

[0044] Example 2

[0045] Based on Example 1, the support in the interlayer in the cannula 1 plays a key role in buffering the compressive force; when the support is arranged to be filled in the interlayer as a whole, regardless of whether the material of the support has elasticity and flexibility, the presence of the support in the cannula interlayer will affect the curvature range of the entire cannula 1; the curvature adjustment range of the cannula 1 will be limited; during the use of the infusion set, the infusion set hose needs to be able to bend adaptively to facilitate the position and orientation adjustment during the activity; the infusion set hose is placed in the cannula 1 and should also have a certain curvature adjustment activity; however, if the support is filled in the cannula interlayer as a whole, the curvature adjustment activity of the cannula 1 will inevitably be affected, thereby affecting the curvature adjustment of the infusion set hose;

[0046] like Figure 2 as well as Figure 4 As shown, in this embodiment, the support is configured as a support ball 102 structure, and a plurality of mutually independent support balls 102 are distributed in the interlayer; the arrangement structure of the support balls 102 is as follows: the support balls 102 are arranged in contact with the upper and lower sides of the hollow interlayer; starting from the head end of the sleeve 1, the support balls 102 are arranged in the interlayer at equal intervals in one circle to form a row; and are arranged in rows and columns at equal intervals in sequence until the internal space of the interlayer is filled;

[0047] The support balls 102 are distributed at independent points, and the support balls 102 are arranged at equal intervals. Such an arrangement can fully cover the surface of the sleeve 1. No matter where the compressive force acts on the sleeve 1, there can be a corresponding support ball 102 to bear and buffer it, thereby minimizing or eliminating the compressive force that can be transmitted to the infusion hose to the greatest extent.

[0048] In addition, due to the arrangement of two adjacent rows of support balls 102, there is an equal spacing between the rows; such an arrangement structure does not affect the normal curvature adjustment range of the sleeve 1, and the curvature within the normal range can be achieved. The infusion hose wrapped in the sleeve 1 follows the sleeve 1 and can perform normal curvature adjustment.

[0049] The supporting ball 102 mentioned above can also be made of the same high elastic material as the supporting object in Example 1; it has a good absorption and buffering effect on the compressive force.

[0050] Example 3

[0051] Based on Example 2, the support ball 102 in Example 2 can take into account both the buffering and absorption of the compressive force and the maintenance of the curvature adjustment range of the sleeve 1; but the support in the interlayer is a solid structure, which is a solid small ball made of highly elastic material; and a number of such support balls 102 are arranged in the interlayer of the sleeve 1; these support balls 102 will increase the weight of the entire sleeve 1; and after the sleeve 1 is wrapped around the outside of the infusion hose, if the weight is too large, it will form a downward pulling force on the infusion pump. When this pulling force is too large, it may cause the infusion pump to fall off the infusion bag or infusion bottle.

[0052] like Figure 5 As shown, in the present embodiment, the support ball 102 of the embodiment 2 is replaced with an airbag column 105; the airbag column 105 is filled with gas, and also has a buffering effect on the compressive force acting on the sleeve 1, and since the airbag column 105 contains gas, the overall weight is much smaller than the support ball 102; the arrangement of the airbag column 105 is the same as the arrangement of the support ball 102 in the embodiment 2.

[0053] Using the airbag column 105 as a support can, on the one hand, reduce the weight of the entire sleeve 1, and after being arranged outside the infusion hose, no downward pulling force will be generated; on the other hand, it can take into account the most important compression force absorption and buffering as well as the function of maintaining the curvature adjustment of the sleeve 1.

[0054] Example 4

[0055] Based on Example 1, when performing infusion in a relatively low temperature environment, some of the liquid medicine may crystallize at low temperatures. Excessive crystal accumulation may adhere to the inner wall of the infusion hose and may block the infusion hose. In addition, in a low temperature environment, the temperature of the liquid medicine is low, and after being infused into the human body, it may cause discomfort.

[0056] like Figure 2As shown, an electric heating plate 101 is arranged on the inner wall where the sleeve 1 contacts the infusion hose, and a waterproof isolation layer is covered on the electric heating plate 101; the electric heating plate 101 can be used to heat the liquid medicine in the infusion tube; the electric heating plate 101 can be a constant temperature electric heating plate 101, and its temperature rise threshold is maintained at about 26 degrees Celsius. The constant temperature electric heating plate 101 is an existing product and can be purchased directly; in a low temperature environment, the electric heating plate 101 can be used to heat the liquid medicine to avoid crystallization inside it; at the same time, the liquid medicine is heated before infusion to prevent discomfort to the human body.

[0057] The electric heating plate 101 is connected to the electric control unit 209 via a wire 204 ; a battery and a control switch are arranged in the electric control unit 209 ; the battery provides electric energy for the electric heating plate 101 , and the control switch controls the opening and closing of the electric heating plate 101 .

[0058] Example 5

[0059] Based on Example 4, Figure 6 As shown, the electric control unit 209 is arranged on the fixing clip, and the fixing clip is clamped on the drip pot of the infusion set; the fixing clip includes: a clamp body 201, a pressing sheet 202 and an elastic ring 203;

[0060] Two clamping bodies 201 are symmetrically arranged, and the upper parts of the two clamping bodies 201 are hinged; when the two clamping bodies 201 are closed, they present a hollow cylindrical structure; a pressing sheet 202 is arranged on each clamping body 201, and an elastic ring 203 is arranged between the two pressing sheets 202.

[0061] The electric control unit 209 is arranged on the outside of the clamp body 201 of the fixing clamp, a wire 204 is arranged on the electric control unit 209, a wire docking interface 103 is arranged on the head end of the sleeve 1, and the wire docking interface 103 is connected to the circuit structure of the electric heating plate 101; the wire 204 is connected to the wire docking interface 103 to realize the control of the electric heating plate 101 by the electric control unit 209.

[0062] The electronic control unit 209 also integrates and connects a signal amplifier 206, a digital converter 207 and a microprocessor 208; a patch photosensor 205 is arranged on the contact surface between the clamp 201 and the drip pot; the photosensor is communicatively connected to the signal amplifier 206, the signal amplifier 206 is communicatively connected to the digital converter 207, the digital converter 207 is communicatively connected to the microprocessor 208; the fixing clamp is clamped on the drip pot of the infusion set, and the photosensor arranged on the clamp 201 generates reflected light when the liquid drops through, and the photosensor converts the light signal into an electrical signal; the electrical signal is amplified by the signal amplifier 206 and then sent to the digital converter 207 to convert the electrical signal into a digital signal; the digital signal is fed into the microprocessor 208, and the microprocessor 208 performs liquid drop signal calculation to obtain the dripping speed, which is displayed on the display screen of the electronic control unit 209.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-blocking device for an infusion set, characterized in that: include: Casing, support; A hollow cylindrical structure is formed inside the sleeve; the hollow cylindrical structure runs through both ends of the sleeve; The infusion hose is arranged in the hollow cylindrical structure; A hollow interlayer is arranged inside the side wall of the sleeve; The hollow interlayer is provided with supports to protect the infusion hose inside the sleeve from compression and knotting and bending.

2. The anti-blocking device for an infusion set according to claim 1, characterized in that: The support is a support ball structure, and a plurality of support balls are evenly arranged in the hollow interlayer of the sleeve.

3. The anti-blocking device for an infusion set according to claim 2, characterized in that: The arrangement structure of the support balls is as follows: the support balls are arranged in contact with the upper and lower sides of the hollow interlayer; starting from the end close to the sleeve head, the support balls are arranged in the interlayer with equal spacing in one circle, and then arranged in rows with equal spacing backwards.

4. The anti-blocking device for an infusion set according to claim 1, characterized in that: The support is an airbag column structure, each airbag column is independently arranged in the hollow interlayer of the sleeve, and a plurality of airbag columns are evenly arranged in the hollow interlayer of the sleeve.

5. The anti-blocking device for an infusion set according to claim 4, characterized in that: The upper and lower ends of the airbag column are arranged in contact with the upper and lower sides of the hollow interlayer; starting from the end close to the sleeve head, the airbag columns are arranged in the interlayer with equal spacing in one circle to form a row; and then arranged in rows with equal spacing backwards.

6. The anti-blocking device for an infusion set according to claim 1, characterized in that: An electric heating sheet is arranged on the inner side wall of the sleeve which contacts the infusion hose, and a waterproof isolation layer is covered on the electric heating sheet.

7. The anti-blocking device for an infusion set according to claim 6, characterized in that: The electric heating plate is connected to the electric control unit through a wire; the electric control unit is used to control the opening of the electric heating plate.

8. The anti-blocking device for an infusion set according to claim 7, characterized in that: The electric control unit is arranged on a fixing clip, and the fixing clip is clamped on the drip pot of the infusion set; the fixing clip comprises: a clamp body, a pressing sheet and an elastic ring; The clamping body is symmetrically provided with two pieces, and the upper parts of the two pieces are hinged; when the two pieces are closed, they form a hollow cylindrical structure; A pressing sheet is arranged on each clamping body, and an elastic ring is arranged between the two pressing sheets.

9. The anti-blocking device for an infusion set according to claim 8, characterized in that: A patch photosensitive sensor is arranged on the contact surface between the clamp and the drip pot; a signal amplifier, a digital converter and a microprocessor are integrated in the electric control unit; a battery and a control switch are arranged in the electric control unit; The patch photosensor is communicatively connected to a signal amplifier, the signal amplifier is communicatively connected to a digital converter, and the digital converter is communicatively connected to a microprocessor.

10. The anti-blocking device for an infusion set according to claim 1, characterized in that: A transparent window is arranged on the sleeve.

Images