A medicament powder filling cannula

Abstract

The utility model relates to a medicine powder filling intubation, including casing and the powder suction pipe who can move in the casing axial direction in the casing, the casing end is equipped with the powder suction part, the powder suction pipe end is equipped with the powder suction block, the powder suction block is placed in the powder suction part and forms the powder suction cavity, the powder suction block passes through the powder suction pipe axial movement can carry out the powder suction, the casing is equipped with the adjusting spare away from the powder suction part one end, the adjusting spare can adjust the capacity size of powder suction cavity, and the casing end sets up the powder suction part, and the powder suction pipe end sets up the powder suction block and forms the powder suction cavity and carries out the powder suction, the casing end sets up the powder suction part, and the powder suction pipe end sets up the powder suction block and forms the powder suction cavity.

Description

Technical Field

[0001] This utility model relates to the field of powder filling technology, specifically to a powder filling cannula. Background Technology

[0002] A powder-filling cannula is a medical device or industrial equipment component used to precisely fill powdered medicine into capsules, ampoules, etc., and is widely used in pharmaceuticals, medical fields, and other areas. Its core function is to stably and uniformly inject dried powdered medicine into the target container according to a preset dosage through a specific pipeline structure and delivery mechanism, ensuring the accuracy of drug dosage and the aseptic nature of the production process.

[0003] Currently available powder filling tubes cannot adjust the powder dispensing amount according to the actual capacity of the capsule. The fixed filling amount is difficult to meet the production needs of multiple varieties. Different powder filling tubes are needed for different capsule capacities, resulting in low production efficiency. Therefore, there is still room for improvement in this technology. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a powder-filled insertion tube to address the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder-filling insert, comprising a shell and a powder-absorbing tube inserted inside the shell and capable of axial movement within the shell, characterized in that: a powder-absorbing part is provided at the end of the shell, a powder-absorbing block is provided at the end of the powder-absorbing tube, the powder-absorbing block is placed inside the powder-absorbing part and forms a powder-absorbing cavity, the powder-absorbing block can absorb powder by axial movement through the powder-absorbing tube, and an adjusting member is provided at the end of the shell away from the powder-absorbing part, the adjusting member being capable of adjusting the capacity of the powder-absorbing cavity.

[0006] By adopting the above technical solution, a powder suction part is set at the end of the shell, a powder suction block is set at the end of the powder suction tube to form a powder suction cavity, and a negative pressure is formed between the powder suction block and the shell by the axial movement of the powder suction tube to suction powder. An adjustment component is set at the end of the shell away from the powder suction part to adjust the size of the powder suction cavity. This realizes the adjustment of the filling amount, and can adapt to the production needs of various capsule specifications without frequent replacement of tubes with different capacities, effectively improving production efficiency.

[0007] The aforementioned powder-filling cannula can be further configured such that: the adjusting component includes an adjusting body and a first adjusting thread disposed on the outer periphery of the adjusting body; the inner wall of the housing is provided with a second adjusting thread that mates with the first adjusting thread; the powder suction tube is limited and disposed within the adjusting body and can move axially within the adjusting body; the adjusting body drives the powder suction tube through the first adjusting thread and the second adjusting thread to adjust the height of the powder suction block within the powder suction cavity, thereby adjusting the capacity of the powder suction cavity.

[0008] By adopting the above technical solution, the first adjusting thread on the outer periphery of the main body and the second adjusting thread on the inner wall of the shell are adjusted to realize the axial position adjustment of the powder suction tube driving the powder suction block in the powder suction cavity, and the capacity of the powder suction cavity is stably controlled by the mechanical thread transmission structure.

[0009] The aforementioned powder filling tube can be further configured as follows: an abutment ring is provided around the outer periphery of the powder suction tube, a first abutment groove is formed between the abutment ring and the powder suction tube, the first abutment groove abuts against the bottom of the adjusting body, a second abutment groove is provided inside the housing at the lower end of the abutment ring, and a return spring is provided between the abutment ring and the second abutment groove.

[0010] Using the above technical solution, an abutment ring is set on the outer periphery of the powder suction tube to form a first abutment groove that abuts against the bottom of the adjustment body. At the same time, a reset spring is set between the abutment ring and the second abutment groove inside the housing, so that the powder suction tube can be reset by the reset spring after being pressed down.

[0011] The aforementioned powder-filled insertion tube can be further configured such that: a sealing ring is provided between the second abutment groove and the reset spring, a sleeve ring is provided around the top of the sealing ring, a first gasket is sleeved on the sleeve ring, and a second gasket is provided between the adjusting body and the first abutment groove.

[0012] Using the above technical solution, a sealing ring with a sleeve ring is provided between the second abutment groove and the return spring, and a first gasket is sleeved on the sleeve ring. At the same time, a second gasket is added between the adjusting body and the first abutment groove. The sealing ring can prevent powder from entering the housing, the first gasket buffers the return spring, and the second gasket buffers the adjustment body and the abutment ring, while reducing the noise of metal collision.

[0013] The aforementioned powder filling tube can be further configured such that: a bushing is provided between the adjusting body and the powder suction tube, and the first adjusting thread is provided with a threaded reinforcing fastener at the top of the housing.

[0014] By adopting the above technical solution, a bushing is added between the adjusting body and the powder suction tube, which reduces the frictional resistance when the two move relative to each other and improves the smoothness of the adjustment operation and the structural stability; at the same time, a threaded reinforcing fastener is set on the top of the housing, which further enhances the strength and sealing of the first adjusting threaded connection.

[0015] The beneficial effects of this utility model are as follows: a powder-absorbing part is provided at the end of the shell, and a powder-absorbing block is provided at the end of the powder-absorbing tube to form a powder-absorbing cavity for powder absorption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a cross-sectional view of the structure of this utility model; Figure 3 This is a structural diagram of the sealing ring of this utility model; Label annotations: 1-Housing, 2-Powder suction tube, 3-Powder suction part, 4-Powder suction block, 5-Powder suction chamber, 6-Adjusting component, 7-Adjusting body, 8-First adjusting thread, 9-Second adjusting thread, 10-Abutting ring, 11-First abutting groove, 12-Second abutting, 13-Reset spring, 14-Sealing ring, 15-Sleeve ring, 16-First gasket, 17-Second gasket, 18-Shaft sleeve, 19-Reinforcing fastener. Detailed Implementation

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] like Figure 1-3 The present invention provides the following technical solution: a powder-filling cannula, comprising a housing 1 and a powder-absorbing tube 2 inserted within the housing 1 and capable of axial movement within the housing 1. The housing 1 has a powder-absorbing section 3 at one end, and the powder-absorbing tube 2 has a powder-absorbing block 4 at one end. The powder-absorbing block 4 is placed within the powder-absorbing section 3 to form a powder-absorbing cavity 5. The powder-absorbing block 4 can absorb powder through the axial movement of the powder-absorbing tube 2. An adjusting member 6 is provided at the end of the housing 1 away from the powder-absorbing section 3, which can adjust the capacity of the powder-absorbing cavity 5. The powder-absorbing section 3 at one end of the housing 1 and the powder-absorbing block 4 at the end of the powder-absorbing tube 2 form the powder-absorbing cavity 5. A negative pressure is created between the powder-absorbing block 4 and the housing 1 through the axial movement of the powder-absorbing tube 2 to absorb powder. The adjusting member 6 at the end of the housing 1 away from the powder-absorbing section 3 adjusts the capacity of the powder-absorbing cavity 5, thus achieving adjustment of the filling amount. The ability to frequently change tubes of different capacities adapts to the production needs of various capsule specifications, effectively improving production efficiency. The adjusting component 6 includes an adjusting body 7 and a first adjusting thread 8 set on the outer periphery of the adjusting body 7. The inner wall of the housing 1 is provided with a second adjusting thread 9 that mates with the first adjusting thread 8. The powder suction tube 2 is limited and set within the adjusting body 7 and can move axially within the adjusting body 7. The adjusting body 7 drives the powder suction tube 2 to adjust the height of the powder suction block 4 within the powder suction cavity 5 through the first adjusting thread 8 and the second adjusting thread 9, thereby adjusting the capacity of the powder suction cavity 5. The mating of the first adjusting thread 8 on the outer periphery of the adjusting body 7 and the second adjusting thread 9 on the inner wall of the housing 1 realizes the axial position adjustment of the powder suction tube 2 driving the powder suction block 4 within the powder suction cavity 5. The capacity of the powder suction cavity 5 is stably controlled through the mechanical thread transmission structure. like Figure 1-3The present invention provides the following technical solution: a powder filling tube, wherein an abutment ring 10 is provided around the outer periphery of the powder suction tube 2, and a first abutment groove 11 is formed between the abutment ring 10 and the powder suction tube 2, the first abutment groove 11 abuts against the bottom of the adjusting body 7, and a second abutment groove 12 is provided inside the housing at the lower end of the abutment ring 10, and a return spring 13 is provided between the abutment ring 10 and the second abutment groove 12. The abutment ring 10 is provided around the outer periphery of the powder suction tube 2, forming the first abutment groove 11, which abuts against the bottom of the adjusting body 7. Simultaneously, a return spring 13 is provided between the abutment ring 10 and the second abutment groove 12 inside the housing, allowing the powder suction tube 2 to be reset by the return spring 13 after being pressed down. A sealing ring 14 is provided between the second abutment groove 12 and the return spring 13, and a sleeve ring 15 is provided around the top of the sealing ring 14. A first gasket 16 is sleeved on the sleeve ring 15. A second gasket is provided between the adjusting body 7 and the first abutment groove 11. 17. A sealing ring 14 with a sleeve ring 15 is provided between the second abutment groove 12 and the return spring 13, and a first gasket 16 is fitted on the sleeve ring 15. At the same time, a second gasket 17 is added between the adjusting body 7 and the first abutment groove 11. The sealing ring 14 can prevent powder from entering the housing 1. The first gasket 16 buffers the return spring 13, and the second gasket 17 buffers the adjustment body 7 and the abutment ring 10, while reducing the noise of metal collision. A bushing 18 is provided between the adjusting body 7 and the powder suction pipe 2. A threaded reinforcing fastener 19 is provided at the top of the housing 1 for the first adjusting thread. The bushing 18 added between the adjusting body 7 and the powder suction pipe 2 reduces the frictional resistance when the two move relative to each other, and improves the smoothness of the adjustment operation and the structural stability. At the same time, the threaded reinforcing fastener 19 at the top of the housing 1 further enhances the strength and sealing of the first adjusting thread connection.

[0019] The beneficial effects of this utility model are as follows: the end of the shell 1 is provided with a powder suction part 3, the end of the powder suction tube 2 is provided with a powder suction block 4, and a powder suction cavity 5 is formed to suction powder.

Claims

1. A powder-filling cannula, comprising a housing and a powder-suction tube inserted within the housing and capable of axial movement within the housing, characterized in that: The end of the housing is provided with a powder-absorbing part, and the end of the powder-absorbing tube is provided with a powder-absorbing block. The powder-absorbing block is placed inside the powder-absorbing part and forms a powder-absorbing cavity. The powder-absorbing block can absorb powder by moving axially through the powder-absorbing tube. The end of the housing away from the powder-absorbing part is provided with an adjusting component, which can adjust the capacity of the powder-absorbing cavity.

2. The powder-filled insertion cannula according to claim 1, characterized in that: The adjusting component includes an adjusting body and a first adjusting thread disposed on the outer periphery of the adjusting body. The inner wall of the housing is provided with a second adjusting thread that mates with the first adjusting thread. The powder suction tube is limited and disposed within the adjusting body and can move axially within the adjusting body. The adjusting body drives the powder suction tube through the first adjusting thread and the second adjusting thread to adjust the height of the powder suction block within the powder suction cavity, thereby adjusting the capacity of the powder suction cavity.

3. The powder-filled insertion cannula according to claim 2, characterized in that: The powder suction tube is surrounded by an abutment ring, and a first abutment groove is formed between the abutment ring and the powder suction tube. The first abutment groove abuts against the bottom of the adjusting body. A second abutment groove is provided inside the housing at the lower end of the abutment ring, and a return spring is provided between the abutment ring and the second abutment groove.

4. The powder-filled insertion cannula according to claim 3, characterized in that: A sealing ring is provided between the second abutment groove and the reset spring. A sleeve ring is provided around the top of the sealing ring. A first gasket is sleeved on the sleeve ring. A second gasket is provided between the adjusting body and the first abutment groove.

5. A powder-filled insertion cannula according to any one of claims 2-4, characterized in that: A bushing is provided between the adjusting body and the powder suction tube, and the first adjusting thread is provided with a threaded reinforcing fastener at the top of the housing.

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