An integrated infusion drug delivery device

Abstract

This application relates to an integrated infusion drug delivery device, comprising a drug pretreatment chamber, a drug pulverizing component, a mixing chamber, and a hinged bottom cover. A removable filter screen is installed at the bottom of the drug pretreatment chamber. The drug pulverizing component is located inside the drug pretreatment chamber for pulverizing and grinding the drug. The mixing chamber is connected to the bottom of the drug pretreatment chamber and is used to mix the pulverized drug powder with a solution to form a suspension. The mixing chamber has an inlet for injecting the solution and an outlet for connecting to a gastric tube. The hinged bottom cover is located between the bottom of the drug pretreatment chamber and the mixing chamber. By installing the drug pulverizing component inside the drug pretreatment chamber and configuring the removable filter screen and hinged bottom cover at the bottom of the pretreatment chamber, closed-loop pulverization and precise transfer of the drug are achieved. After pulverization, the drug powder can directly enter the mixing chamber connected to it through the bottom cover, where it mixes with the solution to form a suspension, and the infusion operation is completed through the inlet and outlet of the mixing chamber.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an integrated perfusion drug delivery device. Background Technology

[0002] In postoperative care of cardiac surgeons, patients often require medication infusion via a gastric tube due to ventilator support and slow gastrointestinal recovery. Current clinical procedures typically involve crushing tablets in a mortar and pestle, adding warm water, and then injecting the powder into the gastric tube using an infusion device. This procedure has several drawbacks: firstly, it is cumbersome, requiring switching between multiple tools and resulting in low efficiency; secondly, the grinding process carries risks of microbial contamination and drug loss, affecting efficacy; thirdly, powder scattering can cause occupational exposure for nursing staff; and fourthly, the grinding effect of a mortar and pestle is not ideal, with larger particles easily clogging the gastric tube and compromising administration safety. Therefore, current techniques have significant shortcomings in terms of ease of operation, accurate drug dosage, and administration safety. Utility Model Content

[0003] The purpose of this invention is to provide an integrated infusion drug delivery device that achieves closed-loop pulverization and precise transfer of drugs by incorporating a drug pulverizing component within a drug pretreatment chamber and a detachable filter and hinged bottom cover at the bottom of the pretreatment chamber. After pulverization, the drug powder can directly enter the connected mixing chamber through the bottom cover, where it mixes with the solution to form a suspension. The infusion operation is then completed through the inlet and outlet of the mixing chamber. This effectively simplifies the infusion process, improves operational convenience, avoids drug exposure to air, reduces the risk of microbial contamination and powder scattering, and ensures accurate drug dosage delivery and particle filtration, preventing blockage of the gastric tube and improving the safety and efficiency of clinical drug delivery.

[0004] To achieve the above objectives, this utility model provides an integrated perfusion drug delivery device, characterized in that it comprises: A drug pretreatment chamber, wherein a removable filter screen is provided at the bottom of the drug pretreatment chamber; A drug pulverizing component is installed inside the drug pretreatment chamber and is used to pulverize and grind drugs. The mixing chamber is connected to the bottom of the drug pretreatment chamber and is used to mix the pulverized and ground drug powder with the solution to form a suspension. The mixing chamber is provided with an inlet for injecting the solution and an outlet connected to a gastric tube. A hinged bottom cover is located between the bottom of the drug pretreatment chamber and the mixing chamber.

[0005] Optionally, the top of the drug pretreatment chamber is provided with a fixed cover, and the fixed cover has a drug inlet.

[0006] Optionally, the drug pulverizing component includes: A fixing block is provided in the middle of the fixing cover. A through hole is provided in the middle of the fixing block, and a rotating protrusion is provided on the side of the through hole. A rotating rod, one end of which extends out of the fixed block, and the other end of which passes through the through hole and extends into the drug pretreatment chamber. The rotating rod can move up and down along the through hole. A spiral groove is provided on the rotating rod to cooperate with the rotating protrusion. The spiral groove cooperates with the rotating protrusion to drive the rotating rod to rotate when it moves up and down. A shredding blade is circumferentially disposed at the other end of the rotating rod; A fixed buckle is provided at one end of the rotating rod and is rotatably connected to one end of the rotating rod.

[0007] Optionally, the fixing buckle has a U-shaped structure, one end of the rotating rod extends into the fixing buckle, one end of the rotating rod is fitted with a limiting block, and one end of the rotating rod is locked in the fixing buckle by the limiting block.

[0008] Optionally, one end of the rotating protrusion that extends into the through hole has a hemispherical structure.

[0009] Optionally, the inner wall of the mixing chamber is provided with spiral guide vanes.

[0010] Optionally, the integrated infusion drug delivery device further includes: A connecting cylinder is disposed between the bottom of the drug pretreatment chamber and the mixing chamber. An annular mounting groove is provided on the side of the connecting cylinder, and the hinged bottom cover is disposed in the annular mounting groove.

[0011] Optionally, the hinged bottom cover includes: Two opening and closing parts are hinged together by a hinge shaft, which is set in an annular mounting groove and its two ends are connected to the communicating cylinder. The opening and closing part includes a cover plate and an operating part, and a return spring is provided between the two operating parts.

[0012] Optionally, the edges of the two cover plates are provided with sealing gaskets.

[0013] The beneficial effects of this invention are as follows: By installing a drug pulverizing component inside the drug pretreatment chamber and configuring a detachable filter and a hinged bottom cover at the bottom of the pretreatment chamber, closed-loop pulverization and precise transfer of the drug are achieved. After pulverization, the drug powder can directly enter the connected mixing chamber through the bottom cover, where it mixes with the solution to form a suspension. The infusion operation is then completed through the inlet and outlet of the mixing chamber. This effectively simplifies the infusion process and improves operational convenience; it avoids drug exposure to air, reducing the risk of microbial contamination and drug powder scattering; and it ensures accurate drug dosage delivery and particle filtration, preventing blockage of the gastric tube and improving the safety and efficiency of clinical drug administration.

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic structural diagram of an integrated perfusion drug delivery device according to an embodiment of the present invention; Figure 2 This is a schematic structural diagram of the drug pretreatment chamber of an integrated perfusion drug delivery device according to an embodiment of the present invention; Figure 3 This is a schematic structural diagram of the opening and closing bottom cover of an integrated perfusion drug delivery device according to an embodiment of the present invention; In the diagram: 1. Drug pretreatment chamber; 11. Fixed cover; 12. Drug inlet; 2. Drug pulverizing assembly; 21. Fixed block; 211. Through hole; 212. Rotating protrusion; 22. Rotating rod; 221. Spiral groove; 222. Limiting block; 23. Pulverizing blade; 24. Fixed pull buckle; 3. Mixing chamber; 31. Inlet; 32. Outlet; 4. Opening bottom cover; 41. Opening part; 411. Cover plate; 412. Operating part; 42. Hinge shaft; 43. Return spring; 5. Connecting cylinder; 51. Annular mounting groove. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Please see Figure 1 A preferred embodiment of this application shows an integrated infusion drug delivery device comprising a drug pretreatment chamber 1, a drug pulverizing component 2, a mixing chamber 3, and a hinged bottom cover 4. The drug pretreatment chamber 1 has a removable filter screen at its bottom. The drug pulverizing component 2 is disposed within the drug pretreatment chamber 1 for pulverizing and grinding the drug. The mixing chamber 3 is connected to the bottom of the drug pretreatment chamber 1 and is used to mix the pulverized drug powder with a solution to form a suspension. The mixing chamber 3 has an inlet 31 for injecting the solution and an outlet 32 ​​connected to a gastric tube. The hinged bottom cover 4 is disposed between the bottom of the drug pretreatment chamber 1 and the mixing chamber 3.

[0020] According to the embodiment of this utility model, by setting a drug pulverizing component 2 in the drug pretreatment chamber 1, and configuring a detachable filter screen and an openable bottom cover 4 at the bottom of the pretreatment chamber, closed-loop pulverization and precise transfer of drugs are achieved. After pulverization, the drug powder can directly enter the mixing chamber 3 connected to it through the bottom cover, where it mixes with the solution to form a suspension, and the infusion operation is completed through the inlet 31 and outlet 32 ​​of the mixing chamber 3. This effectively simplifies the infusion process and improves operational convenience; it avoids drug exposure to air, reducing the risk of microbial contamination and drug powder scattering; at the same time, it ensures accurate drug dosage delivery and particle filtration, avoids clogging of the gastric tube, and improves the safety and efficiency of clinical drug administration.

[0021] The following detailed description uses specific examples: Please see Figure 2 The drug pretreatment chamber 1 is topped with a fixed cover 11, on which a drug inlet 12 is provided. In this embodiment, the drug is introduced into the drug pretreatment chamber 1 through the drug inlet 12 and pulverized by the drug pulverizing component 2. In dry processing, the pulverized drug powder falls directly into the mixing chamber 3 through the opening and closing bottom cover 4; in wet processing, water is injected through the drug inlet 12 and stirred by the drug pulverizing component 2 to form a homogeneous suspension before entering the mixing chamber 3. The aqueous solution is pushed into the inlet 31 of the mixing chamber 3 to mix with the drug powder to form a suspension, which is then injected into the gastric tube through the outlet 32 ​​of the mixing chamber 3. Furthermore, the drug inlet 12 is provided with a soft plug.

[0022] Further, please see Figure 2 The drug pulverizing assembly 2 includes a fixed block 21, a rotating rod 22, a pulverizing blade 23, and a fixing buckle 24. The fixed block 21 is located in the middle of the fixed cover 11, and has a through hole 211 in its middle. A rotating protrusion 212 is located on the side of the through hole 211. One end of the rotating rod 22 extends out of the fixed block 21, and the other end passes through the through hole 211 and extends into the drug pretreatment chamber 1. The rotating rod 22 can move up and down along the through hole 211. A spiral groove 221 is formed on the rotating rod 22 to cooperate with the rotating protrusion 212, causing the rotating rod 22 to rotate when it moves up and down. The pulverizing blade 23 is circumferentially located at the other end of the rotating rod 22. The fixing buckle 24 is located at one end of the rotating rod 22 and is rotatably connected to that end. By pulling the fixed ring, the rotating rod 22 moves upward. With the cooperation of the spiral groove 221 and the rotating protrusion 212, the rotating rod 22 rotates, thereby driving the pulverizing blade 23 to rotate and pulverize the medicine.

[0023] Specifically, please see Figure 2 The fixed buckle 24 has a convex shape. One end of the rotating rod 22 extends into the fixed buckle 24, and a limiting block 222 is fitted onto one end of the rotating rod 22. The limiting block 222 holds the rotating rod 22 within the fixed buckle 24. The convex shape limits the fixed buckle 24, preventing it from falling into the drug pretreatment chamber 1. The limiting block 222 allows the rotating rod 22 and the fixed buckle 24 to rotate, thereby converting linear motion into rotational motion through the cooperation of the spiral groove 221 and the rotating protrusion 212.

[0024] Please see Figure 2 The end of the rotating protrusion 212 that extends into the through hole 211 is hemispherical, which makes the contact between the rotating protrusion 212 and the spiral groove 221 smoother and more reliable. The hemispherical rotating protrusion 212 can reduce local stress concentration and reduce frictional resistance during movement, thereby extending the service life of the drug pulverizing assembly 2 and ensuring the stability of the pulverizing process.

[0025] The inner wall of the mixing chamber 3 is equipped with spiral guide vanes. By installing spiral guide vanes in the mixing chamber 3, the principle of passive mixing can be used to enhance the rotation, shearing and folding of the aqueous solution in the mixing chamber 3, improve the mixing effect of the suspension, and avoid drug powder agglomeration or local precipitation.

[0026] Please see Figure 2The integrated infusion drug delivery device also includes a connecting cylinder 5, which is located between the bottom of the drug pretreatment chamber 1 and the mixing chamber 3. An annular mounting groove 51 is provided on the side of the connecting cylinder 5, and a hinged bottom cover 4 is installed within the annular mounting groove 51. The connecting cylinder 5 serves as a transfer channel between the two chambers, ensuring smooth connection between the drug powder and the aqueous solution; the annular mounting groove 51 provides clearance when the hinged bottom cover 4 is opened.

[0027] Please see Figure 2 and Figure 3 The hinged bottom cover 4 includes two opening and closing parts 41, which are hinged together by a hinge shaft 42. The hinge shaft 42 is located in an annular mounting groove 51 and its two ends are connected to the connecting cylinder 5. Each opening and closing part 41 includes a cover plate 411 and an operating part 412, with a return spring 43 between the two operating parts 412. Furthermore, sealing gaskets are provided on the edges of the two cover plates 411. This design allows the two cover plates 411 to separate when the operating part 412 is manually pressed to open, releasing the pulverized medicine powder. When closed, the return spring 43 automatically resets and tightly closes the cover, simplifying the operation and maintaining the self-locking function of the hinged bottom cover 4. By providing sealing gaskets, the hinged bottom cover 4 can achieve a sealing function when closed, in conjunction with the mounting groove.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An integrated perfusion dosing device, characterized by, include: The drug pretreatment chamber has a removable filter screen at the bottom and a fixed cover at the top, with a drug inlet on the fixed cover. A drug pulverizing component, disposed within the drug pretreatment chamber, is used to pulverize and grind the drug. The drug pulverizing component includes: A fixing block is provided in the middle of the fixing cover. A through hole is provided in the middle of the fixing block, and a rotating protrusion is provided on the side of the through hole. A rotating rod, one end of which extends out of the fixed block, and the other end of which passes through the through hole and extends into the drug pretreatment chamber. The rotating rod can move up and down along the through hole. A spiral groove is provided on the rotating rod to cooperate with the rotating protrusion. The spiral groove cooperates with the rotating protrusion to drive the rotating rod to rotate when it moves up and down. A shredding blade is circumferentially disposed at the other end of the rotating rod; A fixed buckle is provided at one end of the rotating rod and is rotatably connected to one end of the rotating rod; The mixing chamber is connected to the bottom of the drug pretreatment chamber and is used to mix the pulverized and ground drug powder with the solution to form a suspension. The mixing chamber is provided with an inlet for injecting the solution and an outlet connected to a gastric tube. A hinged bottom cover is located between the bottom of the drug pretreatment chamber and the mixing chamber.

2. The integrated infusion drug delivery device according to claim 1, characterized in that, The fixed buckle has a convex shape. One end of the rotating rod extends into the fixed buckle, and a limiting block is fitted onto one end of the rotating rod. The one end of the rotating rod is locked into the fixed buckle by the limiting block.

3. The integrated infusion drug delivery device according to claim 1, characterized in that, The end of the rotating protrusion that extends into the through hole has a hemispherical structure.

4. The integrated infusion drug delivery device according to claim 1, characterized in that, The inner wall of the mixing chamber is equipped with spiral guide vanes.

5. The integrated infusion drug delivery device according to claim 1, characterized in that, Also includes: A connecting cylinder is disposed between the bottom of the drug pretreatment chamber and the mixing chamber. An annular mounting groove is provided on the side of the connecting cylinder, and the hinged bottom cover is disposed in the annular mounting groove.

6. The integrated infusion drug delivery device according to claim 5, characterized in that, The hinged bottom cover includes: Two opening and closing parts are hinged together by a hinge shaft, which is set in an annular mounting groove and its two ends are connected to the communicating cylinder. The opening and closing part includes a cover plate and an operating part, and a return spring is provided between the two operating parts.

7. The integrated infusion drug delivery device according to claim 6, characterized in that, The edges of the two cover plates are provided with sealing gaskets.

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