A granular hemostatic agent bolus device

By designing a granular hemostatic agent injection device with a controller, metering pump, and stirring assembly, the problems of uneven drug distribution and clumping in the wound were solved, achieving uniform drug distribution and efficient hemostasis, and improving the stability and reliability of emergency care.

CN224344982UActive Publication Date: 2026-06-12CHONGQING DATSING MEDICAL DEVICE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING DATSING MEDICAL DEVICE CO LTD
Filing Date
2025-03-22
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing injection devices cannot ensure the uniform distribution of hemostatic agent particles within the wound, and the clumping of drug particles can lead to poor hemostasis, increasing the complexity and risk of emergency care.

Method used

A granular hemostatic agent injection device was designed, comprising a controller, a metering pump, a connecting tube, and a nozzle. The metering pump pushes the drug to the nozzle at a set dose, the nozzle ensures uniform drug distribution, and a stirring assembly prevents drug clumping. A stirring rod and scraper are used to stir the drug on the inner wall of the storage cylinder to reduce the risk of blockage.

Benefits of technology

It improves the atomization effect and uniform distribution of drugs, reduces the risk of pipeline blockage, enhances the stability and reliability of emergency medical services, and ensures that drugs are accurately delivered to the target location.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of medical equipment, and discloses a granular hemostatic agent injection device, which comprises a storage cylinder, the upper surface of the storage cylinder is fixedly connected with a handle, the outer surface of the handle is fixedly installed with a controller, the inside of the handle is provided with a storage battery, the controller and the storage battery are connected through a circuit, a cavity is arranged in the inner wall of the handle, a stirring assembly is arranged in the inner wall of the storage cylinder, and a quantitative pump is arranged at the discharge port of the storage cylinder. The granular hemostatic agent injection device is characterized by the cooperation among the controller, the quantitative pump and the communication pipe, can push the medicine powder in the storage cylinder to the nozzle according to the set dose, improves the atomization effect of the medicine, the nozzle can ensure that the medicine is uniformly distributed in the target area, improves the hemostatic effect, the medicine powder in the storage cylinder can be stirred under the action of the stirring assembly, so that the medicine powder is prevented from caking, the risk of pipeline blockage is reduced, and the stability and reliability of the first-aid work are improved.
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Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a granular hemostatic agent injection device. Background Technology

[0002] Currently, the most common hemostasis methods used in endoscopic surgery are electrocoagulation, ligation, and hemostatic materials. Electrocoagulation can affect organ function, ligation can only be used under certain conditions, and hemostatic materials are being gradually promoted and applied, with hemostatic powder being the most commonly used material. When using hemostatic powder, a push-in device is needed to deliver the powder to the designated location. The push-in device directly affects the hemostatic effect and the progress of emergency treatment.

[0003] However, existing injection devices often use a simple mechanical pushing method to directly push hemostatic agent granules into the wound. This method not only fails to ensure the uniform distribution of the drug in the wound, but also easily leads to poor hemostasis due to the aggregation and clumping of drug granules, increasing the complexity and risk of emergency work. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a granular hemostatic agent injection device, which has advantages such as avoiding powder clumping and ensuring uniform drug distribution, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: a granular hemostatic agent injection device, comprising a storage cylinder, a handle fixedly connected to the upper surface of the storage cylinder, a controller fixedly installed on the outer surface of the handle, a battery disposed inside the handle, the controller and the battery connected by a circuit, a cavity formed in the inner wall of the handle, a stirring assembly disposed in the inner wall of the storage cylinder, a metering pump disposed at the outlet of the storage cylinder, the metering pump and the controller being wirelessly connected, the outer surface of the metering pump fixedly connected to the outer surface of the storage cylinder, a connecting pipe fixedly connected to the air outlet of the metering pump, a nozzle fixedly connected to the end of the connecting pipe away from the air outlet of the metering pump, and multiple air holes formed on the outer surface of the nozzle.

[0006] The above scheme, through the coordinated action of the controller, metering pump, and connecting pipe, can push the drug powder from the storage cylinder to the nozzle at a set dosage, thereby improving the atomization effect of the drug. The nozzle can ensure that the drug is evenly distributed in the target area, improving the hemostatic effect. Then, under the action of the stirring component, the drug powder inside the storage cylinder can be stirred, thereby avoiding the drug powder from clumping, reducing the risk of pipeline blockage, and improving the stability and reliability of emergency work.

[0007] Furthermore, the stirring assembly includes a motor fixedly embedded in the upper surface of the storage cylinder, the motor being located inside the cavity, the output end of the motor being fixedly connected to a rotating rod, the outer surface of the rotating rod being rotatably connected to the inner wall of the storage cylinder, and four sets of circumferentially arrayed stirring rods being fixedly connected to the outer surface of the rotating rod.

[0008] The above solution allows the motor to efficiently drive the rotating rod and stirring rod to rotate inside the storage cylinder, thereby continuously stirring the drug powder inside the storage cylinder and preventing the drug from clumping and causing blockage.

[0009] Furthermore, each of the four sets of stirring rods has a scraper fixedly connected to its outer surface, and one side of the scraper is inclined, with the outer surface of the scraper closely fitting the inner wall of the storage cylinder.

[0010] The above method allows for the scraping of drug powder adhering to the inner wall of the storage cylinder using a stirring rod, thereby improving drug utilization and saving resources.

[0011] Furthermore, the outer surface of the handle has a mounting cavity, the outer surface of the battery is mounted inside the mounting cavity, and a baffle is rotatably connected to the inner wall of the mounting cavity.

[0012] The above solution allows the mounting cavity to be shielded by a baffle, thus protecting the battery. Opening the baffle also facilitates the replacement of the battery inside the mounting cavity, improving the practicality of the device.

[0013] Furthermore, an air inlet pipe is fixedly connected to the outer surface of the storage cylinder, the inner wall of the air inlet pipe is connected to the inner wall of the storage cylinder, and a filter screen is fixedly connected to the inner wall of the air inlet pipe.

[0014] The above solution allows external air to enter the storage cylinder by setting up an air inlet pipe, preventing a vacuum from forming inside the storage cylinder and causing the metering pump to be unable to deliver drug dust. The filter screen can also isolate the air entering the air inlet pipe from dust, preventing the drug from being contaminated by dust.

[0015] Furthermore, a material conveying pipe is fixedly connected to the inner wall of the handle, one end of the material conveying pipe is fixedly connected to a connector, the connector is fixedly connected to the upper surface of the handle, and the other end of the material conveying pipe is fixedly connected to the inner wall of the storage cylinder.

[0016] The above scheme, through the setting of conveying pipes and connectors, enables the drug to be stably conveyed to the inside of the storage cylinder through the conveying pipes, thereby improving the drug delivery efficiency.

[0017] Furthermore, a check valve is fixedly connected to one end of the conveying pipe, and the outer surface of the check valve is fixedly connected to the inner wall of the storage cylinder.

[0018] The above solution allows for the sealing of the end of the feed pipe that enters the storage cylinder by setting a check valve, ensuring that the incoming drug dust will not flow back.

[0019] Furthermore, the outer surface of the handle is covered with a rubber anti-slip sleeve, and the rubber anti-slip sleeve is made of rubber.

[0020] The above solution increases the friction on the workers' hands by setting up rubber anti-slip sleeves, allowing them to hold the sleeves more stably during operation, avoiding operational errors or accidental injuries caused by hand slippage, and ensuring that the medication is accurately delivered to the target location.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This granular hemostatic agent injection device, through the coordinated action of a controller, a metering pump, and a connecting pipe, can push the drug powder from the storage cylinder to the nozzle at a set dosage, thereby improving the atomization effect of the drug. The nozzle ensures that the drug is evenly distributed in the target area, enhancing the hemostatic effect. Subsequently, the drug powder inside the storage cylinder is stirred by the stirring component, which can prevent the drug powder from clumping, reduce the risk of pipeline blockage, and improve the stability and reliability of emergency work. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a cross-sectional view of the overall structure of this application;

[0025] Figure 3 This is a three-dimensional structural diagram of the stirring assembly of this application;

[0026] Figure 4 This is a three-dimensional structural diagram of the connecting pipe and nozzle of this application;

[0027] Figure 5 For this application Figure 2 Enlarged structural diagram at point A in the middle.

[0028] In the picture:

[0029] 1. Storage cylinder; 2. Handle; 3. Controller; 4. Mounting cavity; 5. Battery; 6. Mixing assembly; 601. Motor; 602. Rotating rod; 603. Mixing rod; 604. Scraper; 7. Metering pump; 8. Connecting pipe; 9. Nozzle; 10. Cavity; 11. Baffle; 12. Air inlet pipe; 13. Filter screen; 14. Feed pipe; 15. Connector; 16. Check valve; 17. Rubber anti-slip sleeve. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 4 This embodiment of a granular hemostatic agent injection device includes a storage cylinder 1. A handle 2 is fixedly connected to the upper surface of the storage cylinder 1, and a controller 3 is fixedly installed on the outer surface of the handle 2. The controller 3 includes a display screen and buttons for setting parameters and starting or stopping the operation, thereby facilitating operator control and improving injection efficiency. A battery 5 is installed inside the handle 2 to provide the necessary power for the device and ensure stable operation. The controller 3 and the battery 5 are connected by a wiring. A cavity 10 is formed in the inner wall of the handle 2. A stirring assembly 6 is provided in the inner wall of the storage cylinder 1. A metering pump 7 is provided at the outlet of the storage cylinder 1. The metering pump 7 and the controller 3 are wirelessly connected. The surface is fixedly connected to the outer surface of the storage cylinder 1. A connecting pipe 8 is fixedly connected to the air outlet of the metering pump 7. A nozzle 9 is fixedly connected to the end of the connecting pipe 8 away from the air outlet of the metering pump 7. Multiple air holes are opened on the outer surface of the nozzle 9. Through the coordinated action of the controller 3, the metering pump 7 and the connecting pipe 8, the drug powder in the storage cylinder 1 can be pushed to the nozzle 9 according to the set dose, thereby improving the atomization effect of the drug. The nozzle 9 can ensure that the drug is evenly distributed in the target area, improving the hemostatic effect. Then, under the action of the stirring component 6, the drug powder inside the storage cylinder 1 can be stirred, thereby avoiding the drug powder from clumping, reducing the risk of pipeline blockage, and improving the stability and reliability of emergency work.

[0032] Please see Figure 2 and Figure 3The stirring assembly 6 includes a motor 601 fixedly embedded in the upper surface of the storage cylinder 1. The motor 601 is located inside the cavity 10. The output end of the motor 601 is fixedly connected to a rotating rod 602. The outer surface of the rotating rod 602 is rotatably connected to the inner wall of the storage cylinder 1. Four sets of circumferentially arrayed stirring rods 603 are fixedly connected to the outer surface of the rotating rod 602. The rotation of the motor 601 can efficiently drive the rotating rod 602 and stirring rods 603 to rotate inside the storage cylinder 1, thereby continuously stirring the drug powder inside the storage cylinder 1 and preventing the drug from clumping and causing blockage of the storage cylinder 1. The outer surface of each of the four sets of stirring rods 603 is fixedly connected to a scraper 604, and one side of the scraper 604 is inclined. The outer surface of the scraper 604 is in close contact with the inner wall of the storage cylinder 1. The stirring rods 603 can scrape off the drug powder adhering to the inner wall of the storage cylinder 1, improving the utilization rate of the drug and saving resources.

[0033] Please see Figure 1 , Figure 2 and Figure 5 The outer surface of the handle 2 has a mounting cavity 4. The outer surface of the battery 5 is installed inside the mounting cavity 4. A baffle 11 is rotatably connected to the inner wall of the mounting cavity 4. By setting the baffle 11, the mounting cavity 4 can be shielded, thereby protecting the battery 5. Opening the baffle 11 makes it easy to replace the battery 5 inside the mounting cavity 4, which can improve the practicality of the device. An air inlet pipe 12 is fixedly connected to the outer surface of the storage cylinder 1. The inner wall of the air inlet pipe 12 is connected to the inner wall of the storage cylinder 1. A filter screen 13 is fixedly connected to the inner wall of the air inlet pipe 12. By setting the air inlet pipe 12, external air can enter the interior of the storage cylinder 1, avoiding the formation of a vacuum inside the storage cylinder 1, which would prevent the metering pump 7 from delivering drug dust. The filter screen 13 can isolate the air entering the air inlet pipe 12 from dust, preventing the drug from being contaminated by dust. A delivery pipe 14 is fixedly connected to the inner wall of the handle 2. A connector 15 is fixedly connected to one end of the delivery pipe 14. The connector 15 is fixedly connected to the upper surface of the handle 2, and the other end of the delivery tube 14 is fixedly connected to the inner wall of the storage cylinder 1. By setting the delivery tube 14 and the connector 15, the medicine can be stably delivered to the inside of the storage cylinder 1 through the delivery tube 14, thereby improving the delivery efficiency of the medicine. One end of the delivery tube 14 is fixedly connected to a check valve 16, and the outer surface of the check valve 16 is fixedly connected to the inner wall of the storage cylinder 1. By setting the check valve 16, the end of the delivery tube 14 entering the storage cylinder 1 can be sealed to ensure that the incoming medicine dust will not flow back. The outer surface of the handle 2 is covered with a rubber anti-slip sleeve 17. The rubber anti-slip sleeve 17 is made of rubber. By setting the rubber anti-slip sleeve 17, the friction of the operator's hand can be increased, so that the operator can hold the rubber anti-slip sleeve 17 more stably during operation, avoiding operational errors or accidental injuries caused by hand slippage, and ensuring that the medicine can be accurately delivered to the target location.

[0034] In this embodiment, a granular hemostatic agent injection device, through the coordinated action of the controller 3, the metering pump 7, and the connecting pipe 8, can push the drug powder from the storage cylinder 1 to the nozzle 9 at a set dose, thereby improving the atomization effect of the drug. The nozzle 9 can ensure that the drug is evenly distributed in the target area, thus improving the hemostatic effect. Then, under the action of the stirring component 6, the drug powder inside the storage cylinder 1 can be stirred, thereby avoiding the drug powder from clumping, reducing the risk of pipeline blockage, and improving the stability and reliability of emergency work.

[0035] It should be noted that connector 15 adopts a combination of snap-fit ​​and threaded interfaces, which allows connector 15 to connect to the powder input pipeline while also rotating to connect to the powder bottle, greatly improving the practicality of the device.

[0036] The working principle of the above embodiment is as follows: When the powdered medicine enters the storage cylinder 1 through the connector 15 and the conveying pipe 14, the check valve 16 can close the conveying pipe 14 to ensure that the powdered medicine does not flow back. After that, when the powdered medicine reaches the specified amount, the controller 3 controls the conveying volume and conveying rate of the metering pump 7. The conveyed powdered medicine then enters the connecting pipe 8 and is sprayed out from the nozzle 9. The air holes opened at the nozzle 9 can make the sprayed powdered medicine more evenly distributed in the target area. At this time, the rotation of the motor 601 can drive the rotating rod 602 and the stirring rod 603 to rotate inside the storage cylinder 1, thereby continuously stirring the powdered medicine inside the storage cylinder 1, avoiding the caking of medicine and the blockage of the storage cylinder 1. At the same time as the stirring rod 603 rotates, it can drive the scraper 604 to rotate, so that the scraper 604 scrapes off the powdered medicine adsorbed on the inner wall of the storage cylinder 1, improving the utilization rate of medicine and saving resources.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A granular hemostatic agent injection device, comprising a storage cylinder (1), characterized in that: A handle (2) is fixedly connected to the upper surface of the storage cylinder (1). A controller (3) is fixedly installed on the outer surface of the handle (2). A battery (5) is provided inside the handle (2). The controller (3) and the battery (5) are connected by a circuit. A cavity (10) is opened in the inner wall of the handle (2). A stirring assembly (6) is provided in the inner wall of the storage cylinder (1). A metering pump (7) is provided at the outlet of the storage cylinder (1). The metering pump (7) and the controller (3) are connected wirelessly. The outer surface of the metering pump (7) is fixedly connected to the outer surface of the storage cylinder (1). A connecting pipe (8) is fixedly connected to the air outlet of the metering pump (7). A nozzle (9) is fixedly connected to the end of the connecting pipe (8) away from the air outlet of the metering pump (7). Multiple air holes are opened on the outer surface of the nozzle (9).

2. The granular hemostatic agent injection device according to claim 1, characterized in that: The stirring assembly (6) includes a motor (601) fixedly embedded in the upper surface of the storage cylinder (1). The motor (601) is located inside the cavity (10). The output end of the motor (601) is fixedly connected to a rotating rod (602). The outer surface of the rotating rod (602) is rotatably connected to the inner wall of the storage cylinder (1). The outer surface of the rotating rod (602) is fixedly connected to four sets of circumferentially arrayed stirring rods (603).

3. The granular hemostatic agent injection device according to claim 2, characterized in that: The outer surfaces of the four sets of stirring rods (603) are all fixedly connected with scrapers (604), and one side of the scraper (604) is an inclined surface. The outer surface of the scraper (604) is in close contact with the inner wall of the storage cylinder (1).

4. The granular hemostatic agent injection device according to claim 1, characterized in that: The outer surface of the handle (2) is provided with a mounting cavity (4), the outer surface of the battery (5) is installed inside the mounting cavity (4), and the inner wall of the mounting cavity (4) is rotatably connected with a baffle (11).

5. The granular hemostatic agent injection device according to claim 1, characterized in that: An air inlet pipe (12) is fixedly connected to the outer surface of the storage cylinder (1). The inner wall of the air inlet pipe (12) is connected to the inner wall of the storage cylinder (1). A filter screen (13) is fixedly connected to the inner wall of the air inlet pipe (12).

6. The granular hemostatic agent injection device according to claim 1, characterized in that: The inner wall of the handle (2) is fixedly connected to a feeding pipe (14), one end of the feeding pipe (14) is fixedly connected to a connector (15), the connector (15) is fixedly connected to the upper surface of the handle (2), and the other end of the feeding pipe (14) is fixedly connected to the inner wall of the storage cylinder (1).

7. The granular hemostatic agent injection device according to claim 6, characterized in that: One end of the conveying pipe (14) is fixedly connected to a check valve (16), and the outer surface of the check valve (16) is fixedly connected to the inner wall of the storage cylinder (1).

8. The granular hemostatic agent injection device according to claim 1, characterized in that: The outer surface of the handle (2) is covered with a rubber anti-slip sleeve (17), which is made of rubber.