Assembled powder handheld spray gun

Abstract

The utility model discloses an assembled powder handheld spray gun, which comprises an air source joint, a spray gun head, a spray gun head and a spray gun head, and is characterized in that the air source joint is connected with an external clean air source; the air release valve is a three-way pipe mechanism and is provided with a first air inlet, a first air outlet and an air release operation opening; the container is used for containing medicine powder and provided with a second air inlet and a second air outlet; the medicine outlet connector is used for feeding medicine outwards; the first conduit, the second conduit and the third conduit are sequentially connected with the air source connector, the air release valve, the container and the medicine outlet connector. A plurality of independent functional components are sequentially connected through a plurality of guide pipes and then fixed in the shell to form a complete closed pneumatic medicine feeding pipeline, and compared with an original medicine feeding pipeline formed by splicing half shells, the closed pneumatic medicine feeding pipeline has the advantages of being good in sealing performance and simple in processing technology, reliability and safety of a medicine powder feeding device are improved, and the service life of the closed pneumatic medicine feeding pipeline is prolonged. And the production cost is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an assembled powder hand-held injection gun. Background Art

[0002] Patent documents CN115154870A and CN115869033A each disclose a powder administration device with a similar basic structure, including an air inlet pipe, a container, a medicine outlet pipe and a syringe needle connected in sequence. The air inlet pipe is connected to an external air source and is provided with a valve. Its shape is a hand-held gun type structure, which is formed by welding or screwing together two half shells on the left and right. Among them, the medicine outlet pipe, the container, the air inlet pipe and the valve are all formed inside after being assembled by two half shells. To ensure the safety and reliability of the administration device, it is required that the joints of the medicine outlet pipe, the container, the air inlet pipe and the valve have good sealing performance, which puts high requirements on the processing and assembly accuracy of the two half shells, resulting in high product cost and high defect rate.

[0003] On the other hand, in the above-mentioned administration device, before leaving the factory, the powder needs to be stored in the container in advance. Due to the irregular shape of the administration device, the medicine adding operation is more troublesome. Moreover, during transportation, the powder is also likely to transfer to the medicine outlet pipe or the air inlet pipe, which may cause powder waste or loss.

[0004] For the above reasons, it is necessary to further improve the powder administration device. Content of the Utility Model

[0005] In order to improve the safety and reliability of powder administration and at the same time reduce the processing difficulty and cost of the equipment, the utility model provides an assembled powder hand-held injection gun.

[0006] The technical solution adopted by the utility model is as follows: an assembled powder hand-held injection gun, including: an air source connector for connecting an external clean air source; a deflation valve, which is a three-way pipe mechanism and has a first air inlet, a first air outlet and a deflation operation port; a container for containing powder, which has a second air inlet and a second air outlet; a medicine outlet connector for administering medicine outward; a first conduit connecting the air source connector and the first air inlet; a second conduit connecting the first air inlet and the second air inlet; a third conduit connecting the second air outlet and the medicine outlet connector; and a housing, which is in a handle shape and is used to fix the air source connector, the deflation valve, the container and the medicine outlet connector.

[0007] Preferably, the air source connector, the deflation valve, the container and the medicine outlet connector are all integral parts, and the first conduit, the second conduit and the third conduit are flexible hoses, and both ends are ultrasonically welded.

[0008] Preferably, the housing adopts a structure assembled by two half shells.

[0009] Preferably, the container and the outer shell are in the form of separate packaging and combined use.

[0010] Preferably, the outer shell forms a container installation cavity therein, and the container is installed in the container installation cavity; a container joint is provided in the container installation cavity, the second air inlet and the second air outlet are provided on one side of the container joint, and an air inlet sleeve and an air outlet sleeve are provided on the other side of the container joint. The second air inlet is communicated with the air inlet sleeve, and the second air outlet is communicated with the air outlet sleeve; the container has an air inlet insertion tube and an air outlet insertion tube, the air inlet insertion tube is in plug-in fit with the air inlet sleeve, and the air outlet insertion tube is in plug-in fit with the air outlet sleeve.

[0011] Preferably, at least two snap buttons evenly distributed in the circumferential direction are provided at the upper end of the container and are installed and matched with the card slots in the container installation cavity.

[0012] Preferably, the container is in the structure of a cylindrical medicine bottle, and a limiting strip extending axially is provided on the outer peripheral wall of the container and is in plug-in and sliding fit with the limiting groove in the container installation cavity.

[0013] Preferably, the container has a round bottom, and the air outlet insertion tube is communicated with a blow tube extending to the round bottom.

[0014] The utility model has the following beneficial effects: The utility model is provided with a plurality of independent functional components, which are sequentially connected by a plurality of conduits and then fixed in the outer shell to form a complete closed pneumatic medicine delivery pipeline. Compared with the original medicine delivery pipeline spliced by a semi-shell, it has the advantages of good sealing performance and simple processing technology, improves the reliability and safety of the medicine powder delivery device, and also reduces the production cost. Description of the Drawings

[0015] Figure 1 is the external view of the embodiment of the utility model.

[0016] Figure 2 is the sectional view of the embodiment of the utility model.

[0017] Figure 3 is the assembly view of the embodiment of the utility model.

[0018] Figure 4 is the assembly view of the container and the container joint in the embodiment of the utility model.

[0019] Figure 5 is the external view of the embodiment of the utility model when used as a nasal cavity postoperative hemostasis device.

[0020] Air source joint 1;

[0021] Air release valve 2, first air inlet 201, first air outlet 202, air release operation port 203;

[0022] Container 3, air inlet cannula 301, air outlet cannula 302, spring buckle 303, limit strip 304, round bottom 305, air blowing tube 306;

[0023] Medicine outlet connector 4;

[0024] A first conduit 5;

[0025] A second conduit 6;

[0026] The third conduit 7;

[0027] Shell 8, container installation cavity 801, card slot 802, limit slot 803;

[0028] Container joint 9, second air inlet 901, second air outlet 902, air inlet sleeve 903, air outlet sleeve 904;

[0029] Medicine delivery tube 10;

[0030] Nozzle 11. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the embodiments and drawings.

[0032] In the embodiment, Figures 1 - 4 As shown, an assembled hand-held powder spray gun includes: an air source connector 1 for connecting an external clean air source; an air release valve 2, which is a three-way pipe mechanism, having a first air inlet 201, a first air outlet 202 and an air release operation port 203; a container 3, which is used to contain the powder, and has a second air inlet 901 and a second air outlet 902; a drug outlet connector 4, which is used to administer the drug outward; a first conduit 5, which connects the air source connector 1 and the first air inlet 201; a second conduit 6, which connects the first air inlet 201 and the second air inlet 901; a third conduit 7, which connects the second air outlet 902 and the drug outlet connector 4; and a housing 8, which is a handle-shaped structure, which is used to fix the air source connector 1, the air release valve 2, the container 3 and the drug outlet connector 4. The working principle and steps of this embodiment are similar to those of patent document CN115869033A: connect the gas source connector 1 to a clean gas source such as medical oxygen; hold the housing 8 and pull out the original valve cover on the gas release operation port 203, open the gas source, and oxygen enters the gas release valve 2 from the gas source connector 1 and is discharged from the gas release operation port 203; after the air flow at the gas release operation port 203 is stable, press the gas release operation port with your thumb to block it. Figure 2As shown, oxygen enters the container 3, driving the powder to be administered through the medicine outlet connector 4. In this embodiment, a number of independent functional components are provided, which are sequentially connected by a number of conduits and then fixed in the housing to form a complete closed pneumatic medicine delivery pipeline. Compared with the original medicine delivery pipeline using semi - shells spliced together, it has the advantages of good sealing performance and simple processing technology, improving the reliability and safety of the powder medicine delivery device and reducing the production cost.

[0033] In the embodiment, as Figure 2 , 3 , as shown in Figure 4, the gas source connector 1, the air release valve 2, the container 3 and the medicine outlet connector 4 are all integral parts. The first conduit 5, the second conduit 6 and the third conduit 7 are flexible hoses, and both ends are welded by ultrasonic waves. In this embodiment, the gas source connector 1, the air release valve 2 and the medicine outlet connector 4 are made of integral injection - molded pipe fittings, the container 3 is assembled in the form of upper and lower tanks, and the first conduit 5, the second conduit 6 and the third conduit 7 are plastic flexible hoses. Each conduit is welded by ultrasonic waves, with fewer processing points and good sealing performance, ensuring the product quality.

[0034] In the embodiment, as Figure 3 shown, the housing 8 adopts a structure assembled by two half - shells. In this embodiment structure, the housing 8 functions to fix each functional component and serve as a protective housing, without considering the airtightness problem. Therefore, it can meet the requirements by being composed of two half - shells, and the two half - shells can be connected in various ways such as by screws or snap - fitting.

[0035] In the embodiment, as Figure 3 , 4 shown, the container 3 and the housing 8 are in the form of separate packaging and combined use. Specifically: a container installation cavity 801 is formed in the housing 8, and the container 3 is installed in the container installation cavity 801; a container connector 9 is provided in the container installation cavity 801, the second air inlet 901 and the second air outlet 902 are arranged on one side of the container connector 9, and an air inlet sleeve 903 and an air outlet sleeve 904 are provided on the other side of the container connector 9. The second air inlet 901 is communicated with the air inlet sleeve 903, and the second air outlet 902 is communicated with the air outlet sleeve 904; the container 3 has an air inlet insertion tube 301 and an air outlet insertion tube 302, and the air inlet insertion tube 301 is in plug - in fit with the air inlet sleeve 903, and the air outlet insertion tube 302 is in plug - in fit with the air outlet sleeve 904. In this embodiment, the container 3 is stored as a separate component, the container 3 is used to store the powder, both the air inlet insertion tube 301 and the air outlet insertion tube 302 are equipped with seal - cover structures, and an overall cover structure can also be provided outside the container 3. The overall outer shape of the container 3 is closer to that of an ordinary medicine bottle. When storing and transporting, it is separated from the housing 8. When in use, after removing the seal cover of the container 3, it can be assembled with the container connector 9. This form is conducive to the filling, storage and transportation of the powder, is not easily damaged, and is not easily blocked by the conduit.

[0036] In the embodiment, as Figure 3As shown in the figure, at least two snap fasteners 303 evenly distributed in the circumferential direction are provided at the upper end of the container 3, and are installed and mated with the card slots 802 in the container installation cavity 801. This embodiment is a one-time assembly structure. The container 3 can be easily installed with the container installation cavity 801, and is not easy to be loosened and taken out, which is reliable and safe.

[0037] In the embodiment, as Figure 3 , 4 shown, the container 3 is a cylindrical medicine bottle structure. The outer peripheral wall of the container 3 is provided with an axially extending limiting strip 304, which is inserted and slid with the limiting groove 803 in the container installation cavity 801. The limiting strip 304 can be single or multiple, and is asymmetrically designed to accurately position the limiting strip 304 circumferentially, which belongs to a foolproof design to avoid incorrect front-to-back installation.

[0038] In the embodiment, as Figures 2 - 4 shown, the container 3 has a round bottom 305, and the air outlet insertion tube 302 is communicated with a blowing tube 306 extending to the round bottom 305. The blowing tube 306 extends into the round bottom 305, which can ensure that the oxygen blows the medicine powder at the bottom of the container 3 to the third catheter 7, so as to ensure the full utilization of the medicine powder.

[0039] In the embodiment, as Figure 5 shown, for the form of this assembled medicine powder hand-held injection gun as a nasal cavity postoperative hemostasis device, a medicine delivery tube 10 with a certain stiffness and hardness is installed on the medicine outlet joint 4, and a nozzle 11 with a certain structure is installed on the medicine delivery tube 10. The container 3 contains hemostatic microspheres. The medicine delivery tube 10 can extend into the bleeding site in the nasal cavity gap, and the hemostatic microspheres are dispersed by the nozzle 11 and sprayed onto the bleeding site. In addition, this assembled medicine powder hand-held injection gun can also be used as a digestive tract hemostasis kit. The medicine outlet joint 4 is connected to a flexible catheter, which is inserted into the digestive tract along with the endoscope to stop bleeding at the bleeding site. That is, this embodiment is a device suitable for delivering medicine to deeper cavity parts, with the advantages of sufficient drug delivery, accurate location, and good reliability.

[0040] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation manners of the present invention. Other obvious changes or variations derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An assembled powder handheld spray gun, characterized in that: include: An air source connector (1) is used to connect to an external clean air source; The air release valve (2) is a three-way pipe structure having a first air inlet (201), a first air outlet (202) and an air release operation port (203); A container (3) for containing medicine powder, having a second air inlet (901) and a second air outlet (902); A drug outlet connector (4) for dispensing drugs outward; A first conduit (5) connecting the gas source connector (1) and the first gas inlet (201); A second conduit (6) connecting the first air inlet (201) and the second air inlet (901); A third conduit (7) connecting the second air outlet (902) and the medicine outlet connector (4); The outer shell (8) is a handle-shaped structure used to fix the gas source connector (1), the air release valve (2), the container (3) and the medicine outlet connector (4).

2. The assembled powder handheld spray gun according to claim 1, characterized in that: The gas source connector (1), the air release valve (2), the container (3) and the medicine outlet connector (4) are all integrated parts, and the first conduit (5), the second conduit (6) and the third conduit (7) are soft tubes, both ends of which are ultrasonically welded.

3. The assembled powder handheld spray gun according to claim 1, characterized in that: The outer shell (8) adopts a structure in which two half shells are assembled.

4. The assembled powder handheld spray gun according to claim 1, characterized in that: The container (3) and the shell (8) are packaged separately and used in combination.

5. The assembled powder handheld spray gun according to claim 1 or 4, characterized in that: The housing (8) forms a container installation cavity (801) inside the housing (8), and the container (3) is installed in the container installation cavity (801); A container joint (9) is provided in the container installation cavity (801); the second air inlet (901) and the second air outlet (902) are provided on one side of the container joint (9); an air inlet sleeve (903) and an air outlet sleeve (904) are provided on the other side of the container joint (9); the second air inlet (901) is in communication with the air inlet sleeve (903); and the second air outlet (902) is in communication with the air outlet sleeve (904); The container (3) comprises an air inlet cannula (301) and an air outlet cannula (302); the air inlet cannula (301) is plug-fitted with the air inlet sleeve (903); and the air outlet cannula (302) is plug-fitted with the air outlet sleeve (904).

6. The assembled powder handheld spray gun according to claim 5, characterized in that: The upper end of the container (3) is provided with at least two spring buckles (303) evenly distributed in the circumferential direction, which are mounted and matched with the card slots (802) in the container installation cavity (801).

7. The assembled powder handheld spray gun according to claim 5, characterized in that: The container (3) is a cylindrical medicine bottle structure, and the outer peripheral wall of the container (3) is provided with an axially extending limiting strip (304) which is inserted and slidably connected with the limiting groove (803) in the container installation cavity (801).

8. The assembled powder handheld spray gun according to claim 5, characterized in that: The container (3) has a round bottom (305), and the air outlet tube (302) is connected to an air blowing tube (306) extending to the round bottom (305).

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