Exhaust type infusion apparatus

Abstract

The utility model provides an exhaust type infusion apparatus which comprises an infusion tube, an injection needle, a flow speed regulator, a drip cup and a bottle stopper puncture needle, the injection needle, the flow speed regulator, the drip cup and the bottle stopper puncture needle are sequentially arranged on the infusion tube, a precise liquid medicine filter is arranged on the infusion tube close to one side of the drip cup, and an air hole is formed in the side face of the drip cup. A connecting pipe is arranged at the air hole, one end of the catheter is connected with the connecting pipe, the other end of the catheter is used for being connected with an air storage cavity or an exhaust end of the precise liquid medicine filter, and the liquid stopping clamp is arranged on the catheter. In actual use, the liquid medicine filter can solve the technical problems that in the prior art, a liquid medicine filter is prone to causing air gathering, the later filtering effect is poor, and infection risks exist due to the fact that tiny filtering holes existing in the breathable film are directly connected with the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion devices, in particular to an exhaust type infusion set. Background Art

[0002] An infusion set is primarily used to establish a connection between a vein and medication for intravenous infusion. It primarily consists of the following components: an IV needle or syringe, a needle guard, an infusion hose, a medication filter, a drip pot, and an air filter. The IV needle or syringe is used for venipuncture and connects to the infusion set for intravenous medication delivery. This is the critical part of the infusion set that comes into contact with the body and must be sterile and sharp to ensure smooth vein puncture. The needle guard protects the IV needle or syringe to prevent contamination and injury. Medical staff remove the cap before the infusion and properly dispose of it afterward. The infusion hose serves as a fluid guide. It connects the IV needle to an infusion container (such as an IV bottle or bag), ensuring smooth flow of medication into the body. For specialized medications that require light-protected infusion, disposable light-shielding infusion sets are used to prevent adverse effects of light on the medication. The medication filter, located within the infusion hose, filters particles from the medication. These particles can cause infusion reactions if they enter the body. Therefore, a drug filter is a crucial component for ensuring infusion safety. A flow regulator, typically a hand-pushed pulley device, adjusts the flow rate by squeezing the infusion tubing to change the size of the fluid flow path. Healthcare professionals adjust the flow rate based on the patient's physical condition and the properties of the medication to ensure safe and effective infusion. A dripper is used to guide and store a specific amount of medication. By observing the flow rate and liquid level in the dripper, healthcare professionals can determine whether the infusion is flowing smoothly and the appropriate infusion rate for the patient. A bottle piercer is used to puncture the stopper or sealing film of an infusion container, allowing the medication to enter the infusion hose. It relies on gravity to ensure smooth flow of medication into the infusion set. An air filter, located at the air inlet of the infusion system, filters air entering the system. This helps reduce contamination of the infusion solution and the occurrence of infusion reactions.

[0003] In the prior art, the liquid medicine filters generally equipped with infusion sets have two main structures. One is to set up an air storage chamber to store air, and the other is to discharge air by setting up an exhaust port. Generally, a breathable membrane is set at the exhaust port. The former is prone to cause air accumulation and the subsequent filtration effect is poor. The latter has a better filtration and exhaust effect, but the tiny filter holes in the breathable membrane are directly connected to the outside world, which poses a risk of infection. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust-type infusion set, which can solve the technical problems in the prior art that the liquid medicine filter easily causes air accumulation, the subsequent filtration effect is poor, and the tiny filter holes in the breathable membrane are directly connected to the outside world, which poses an infection risk.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An exhaust-type infusion set includes an infusion tube, an injection needle, a flow rate regulator, a drip pot, and a bottle stopper puncture needle arranged in sequence on the infusion tube, and a precision liquid medicine filter is arranged on the infusion tube near the drip pot.

[0007] The utility model also includes a catheter and a liquid-stopping card. An air hole is provided on the side of the drip pot, and a connecting pipe is provided at the air hole. One end of the catheter is connected to the connecting pipe, and the other end is used to connect to the air storage chamber or the exhaust end of the precision liquid medicine filter. The liquid-stopping card is provided on the catheter.

[0008] The injection needle and the infusion tube are connected via a spiral interface.

[0009] Furthermore, the infusion tube is a light-proof infusion hose.

[0010] Among them, the drip pot includes an outer shell and a sealing cover. An extension tube is provided at the bottom of the outer shell. One end of the extension tube is located in the drip pot, and the other end extends out of the drip pot and is connected to the infusion tube. The air hole is provided on the side of the outer shell. The sealing cover is detachably connected to the outer shell and is connected to the infusion tube. Several strip grooves are provided on the side of the extension tube located in the drip pot, and the strip grooves constitute the liquid inlet.

[0011] Furthermore, a needle recovery assembly is provided on the catheter.

[0012] Preferably, the needle recovery assembly includes a connecting rope fixedly arranged on the catheter, a shell installed on the connecting rope, and a rubber pad arranged in the shell.

[0013] Furthermore, the shell is a hemispherical, square or rectangular structure, and absorbent cotton is provided on the rubber pad.

[0014] Among them, the shell is made of hard plastic.

[0015] For further optimization, an extension portion is provided on the shell, and the extension portion serves as a hand-held portion.

[0016] Among them, the surface of the extension part is provided with anti-slip texture.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model is mainly used to connect the drip pot with the air storage chamber or the exhaust end of the precision liquid medicine filter through a catheter to achieve the purpose of exhaust, and at the same time, the catheter is cut off by the provided liquid stop card. After cut off, the precision liquid medicine filter has a larger air storage chamber capacity. After connection, the air in the precision liquid medicine filter can be directly discharged into the drip pot, avoiding the precision liquid medicine filter from being directly connected to the outside world through the breathable membrane provided at the exhaust end. The utility model is able to solve the technical problems in the prior art that the liquid medicine filter easily causes air accumulation, the later filtering effect is poor, and the tiny filter holes in the breathable membrane are directly connected to the outside world, which poses an infection risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 For this utility model Figure 1 A partial enlarged schematic diagram of point A in the middle.

[0022] Figure 3 This is a schematic diagram of the connection relationship between the catheter and the needle recovery assembly.

[0023] Reference numerals:

[0024] 101 infusion tube, 102 injection needle, 103 flow rate regulator, 104 drip pot, 105 bottle stopper puncture needle, 106 precision liquid filter, 107 catheter, 108 liquid stopper card, 109 housing, 110 sealing cap, 111 extension tube, 112 strip groove, 113 needle recovery assembly, 114 connecting rope, 115 housing, 116 rubber pad, 117 extension part. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0029] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] See Figure 1-Figure 3 This embodiment discloses an exhaust-type infusion set, comprising an infusion tube 101, and an injection needle 102, a flow rate regulator 103, a drip pot 104, and a bottle stopper puncture needle 105 sequentially arranged on the infusion tube 101. A precision liquid medicine filter 106 is provided on the infusion tube 101 near the drip pot 104.

[0033] This embodiment also includes a catheter 107 and a liquid-stopping card 108. An air hole is provided on the side of the drip pot 104, and a connecting tube is provided at the air hole. One end of the catheter 107 is connected to the connecting tube, and the other end is used to connect to the air storage chamber or the exhaust end of the precision liquid filter 106. The liquid-stopping card 108 is provided on the catheter 107.

[0034] In actual use, the present invention mainly connects the dripping pot 104 with the air storage chamber or the exhaust end of the precision liquid medicine filter 106 through the catheter 107 to achieve the purpose of exhaust, and at the same time, the catheter 107 is cut off by the provided liquid stop card 108. After cutoff, the precision liquid medicine filter 106 has a larger air storage chamber capacity. After connection, the air in the precision liquid medicine filter 106 can be directly discharged into the dripping pot 104, avoiding the precision liquid medicine filter 106 from being directly connected to the outside world through the breathable membrane provided at the exhaust end; in actual use, the present invention can solve the technical problems in the prior art that the liquid medicine filter easily causes air accumulation, the later filtering effect is poor, and the tiny filter holes in the breathable membrane are directly connected to the outside world, which poses an infection risk.

[0035] The injection needle 102 is connected to the infusion tube 101 via a spiral interface, which facilitates the disassembly of the injection needle 102 and the infusion tube 101, so as to achieve the purpose of retaining the injection needle 102.

[0036] In actual use, the infusion tube 101 is a light-proof infusion hose.

[0037] In some preferred embodiments, the dripping pot 104 includes a housing 109 and a sealing cover 110. An extension tube 111 is provided at the bottom of the housing 109. One end of the extension tube 111 is located inside the dripping pot 104, and the other end extends out of the dripping pot 104 and is connected to the infusion tube 101. An air hole is provided on the side of the housing 109. The sealing cover 110 is detachably connected to the housing 109 and is connected to the infusion tube 101. The side of the extension tube 111 located inside the dripping pot 104 is provided with a plurality of strip grooves 112, which constitute a liquid inlet. The provided strip grooves 112 can be used for filtering purposes and can also achieve the purpose of defoaming.

[0038] In the prior art, after the infusion is completed, the injection needle 102 is inserted into the needle shield. However, due to the very small caliber of the needle shield, it is easy for the medical staff to pierce the body without paying attention during use, causing the risk of occupational exposure. In some preferred embodiments, the catheter 107 is provided with a needle recovery assembly 113 to reduce the risk of occupational exposure.

[0039] The needle recovery assembly 113 includes a connecting rope 114 fixedly mounted on the catheter 107 , a housing 115 mounted on the connecting rope 114 , and a rubber pad 116 disposed within the housing 115 .

[0040] In this way, the removed injection needle 102 can be directly inserted into the rubber pad 116, and the shell 115 can play a blocking role. Compared with the small needle cap, the shell 109 set in this application greatly increases the insertion area. At the same time, the rebound force of the rubber pad 116 clamps and fixes the injection needle 102.

[0041] In actual use, the housing 115 is a hemispherical, square or rectangular structure, and liquid-absorbing cotton is provided on the rubber pad 116. The liquid-absorbing cotton can absorb the residual liquid medicine.

[0042] Wherein, shell 109 is made of hard plastic. Such arrangement can prevent the infusion needle from piercing housing 115, and can play the purpose of protection.

[0043] The housing 115 is provided with an extension portion 117 which serves as a hand-held portion, so that medical personnel can hold the housing 115 when in use, so as to better insert the infusion needle into the rubber pad 116.

[0044] Further optimization, the surface of the extension portion 117 is provided with anti-skid lines to improve the anti-skid effect. In actual use, the anti-skid lines are anti-skid convex lines or anti-skid concave lines.

[0045] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An exhaust-type infusion set comprising an infusion tube, an injection needle, a flow rate regulator, a drip pot, and a bottle stopper puncture needle sequentially arranged on the infusion tube, a precision liquid medicine filter being arranged on the infusion tube near the drip pot, and characterized by: It also includes a catheter and a liquid-stopping card. An air hole is provided on the side of the drip pot, and a connecting tube is provided at the air hole. One end of the catheter is connected to the connecting tube, and the other end is used to connect to the air storage chamber or the exhaust end of the precision liquid medicine filter. The liquid-stopping card is provided on the catheter.

2. The exhaust-type infusion set according to claim 1, characterized in that: The injection needle and the infusion tube are connected through a spiral interface.

3. The exhaust-type infusion set according to claim 1, characterized in that: The infusion tube is a light-proof infusion hose.

4. The exhaust-type infusion set according to claim 1, characterized in that: The drip pot includes an outer shell and a sealing cover. An extension tube is provided at the bottom of the outer shell. One end of the extension tube is located in the drip pot, and the other end extends out of the drip pot and is connected to the infusion tube. The air hole is provided on the side of the outer shell. The sealing cover is detachably connected to the outer shell and is connected to the infusion tube. Several strip grooves are provided on the side of the extension tube located in the drip pot, and the strip grooves constitute the liquid inlet.

5. The air-exhaust infusion set according to any one of claims 1 to 4, characterized in that: The catheter is provided with a needle recovery assembly.

6. The exhaust-type infusion set according to claim 5, characterized in that: The needle recovery assembly comprises a connecting rope fixedly arranged on the catheter, a shell installed on the connecting rope and a rubber pad arranged in the shell.

7. The exhaust-type infusion set according to claim 6, characterized in that: The shell is a hemispherical, square or rectangular structure, and liquid-absorbing cotton is arranged on the rubber pad.

8. The air-exhaust infusion set according to claim 6, characterized in that: The housing is made of hard plastic.

9. The air-exhaust infusion set according to claim 6, characterized in that: An extension portion is provided on the shell, and the extension portion serves as a hand-holding portion.

10. The air-exhaust infusion set according to claim 9, characterized in that: The surface of the extension part is provided with anti-slip textures.

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