Sealed dispensing device

Abstract

A sealed dispensing and drug delivery device includes an extraction tube, a push-pull rod assembly, and a connecting port. The extraction tube includes a first cavity and a second cavity, each of which is independent. A piston in the push-pull rod assembly is operable to move within the first cavity. The piston divides the first cavity into a first region and a second region, with the second region communicating with the second cavity. The connecting port is fixed to the extraction tube and includes a first channel and a second channel, with the first channel communicating with the first cavity and the second channel communicating with the second cavity. When the sealed dispensing and drug delivery device is connected to a liquid medicine container and drug liquid is drawn, the first region expands to draw the drug liquid from the liquid medicine container through the first channel into the first region, while the second region contracts, allowing air in the second region to be discharged into the liquid medicine container through the second cavity and the second channel, thereby forming a sealed environment between the sealed dispensing and drug delivery device and the liquid medicine container.

Description

Technical Field

[0001] The present invention relates to a medicine dispensing and drug delivery device, and in particular to a closed medicine dispensing and drug delivery device capable of forming a closed environment. Background Art

[0002] Existing medication dispensing and administration devices typically consist of a syringe with a needle. The needle punctures or penetrates a container of medication to draw the medication into the syringe, which is then injected into the patient. Medical personnel then cover the syringe with a needle cap and remove the needle for disposal. However, in practice, due to the high volume of injections and lack of proficiency in the procedure, medical personnel often suffer needle stick injuries, significantly increasing the risk of infection.

[0003] If the medication is volatile, using the above-mentioned method to draw the medication into a syringe can lead to incorrect concentrations due to improper timing during the dispensing process, potentially causing serious harm to the patient. Furthermore, if the volatile medication presents an inhalation hazard, medical personnel may inhale excessive amounts of the volatile medication while dispensing, potentially posing a health risk to them.

[0004] On the other hand, some medications require immediate pre-use preparation to provide specific benefits. These medications are often made by mixing a first liquid and a second liquid in a specified ratio. In this method, a needle is inserted or inserted into a container containing the first liquid to draw the first liquid into a syringe. The same needle is then inserted or inserted into a container containing the second liquid to draw the second liquid into the syringe, mixing the first and second liquids within the syringe before administering the injection to the patient. This can cause residual first liquid on the needle to contaminate the container containing the second liquid, potentially distorting the composition of the medication in the container, making it unusable and resulting in medication waste.

[0005] In summary, there is an urgent need for a novel medication dispensing and drug delivery device to improve the many problems existing in existing medication dispensing and drug delivery devices. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a sealed dispensing and drug delivery device, which does not have an outwardly exposed needle, thereby avoiding the problem of medical staff being pricked by needles, thereby reducing the risk of infection caused by equipment during the medical process. In addition, the sealed dispensing and drug delivery device provided by the present invention can form a closed environment with the liquid medicine container, thereby avoiding concentration deviation caused by the absorption of volatile liquid medicine, and also avoiding the potential threat to the health of medical staff due to the inhalation of volatile liquid medicine. On the other hand, the sealed dispensing and drug delivery device provided by the present invention can avoid the opportunity of using the same needle to absorb different liquid medicines, thereby avoiding contamination between different liquid medicines and causing drug waste.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a sealed drug dispensing and drug delivery device comprising: an extraction tube, a push-pull rod assembly and a connecting port, wherein the extraction tube comprises a tube wall and a partition wall, the tube wall is arranged to form a accommodating space, the partition wall is arranged in the accommodating space, and forms a first cavity and a second cavity which are independent of each other; the push-pull rod assembly comprises a cover, a rod body, an operating member and a piston, the cover is fixedly provided and sealed to a first port of the extraction tube, the rod body is passed through a through hole of the cover, and a One end is connected to the operating member, and the other end is connected to the piston. The piston is airtightly arranged in the first cavity and can be moved in the first cavity under operation; the piston divides the first cavity into a first area and a second area. The second area is closer to the first port of the withdrawal tube than the first area. The first area and the second area are not connected to each other in the withdrawal tube, and the second area is connected to the second cavity at the first port; the connecting port is fixedly connected to a second port of the withdrawal tube. The second port is opposite to the first port, and the connection port includes a first channel, a second channel, and at least one soft plug. The first channel is connected to the first cavity, and the second channel is connected to the second cavity. The at least one soft plug is airtightly fixed at one end of the first channel and the second channel, so that the sealed dispensing and drug delivery device forms a sealed environment. When the sealed dispensing and drug delivery device is connected to a liquid medicine container, the at least one soft plug can be operably broken through, thereby connecting the first channel and the second channel to each other through the liquid medicine container. When the operating member of the push-pull rod assembly is pulled by an external force and the piston is driven by the rod body to move toward the first port of the withdrawal tube, the first area of ​​the first cavity is enlarged to draw liquid medicine from the liquid medicine container through the first channel into the first area, and the second area is reduced, so that air in the second area is discharged into the liquid medicine container through the second cavity and the second channel, so that the sealed dispensing and drug delivery device and the liquid medicine container form another sealed environment.

[0008] The effect of the present invention is that the sealed dispensing and drug delivery device provided by the present invention does not have an outwardly exposed needle, thereby preventing medical personnel from being pricked by needles, thereby reducing the risk of infection caused by equipment during the medical process. In addition, the sealed dispensing and drug delivery device provided by the present invention can form a closed environment with the liquid medicine container, thereby preventing concentration deviations caused by the absorption of volatile liquid medicines, and also preventing medical personnel from inhaling volatile liquid medicines and posing potential threats to their health. On the other hand, the sealed dispensing and drug delivery device provided by the present invention can avoid the opportunity of using the same needle to absorb different liquid medicines, thereby preventing different liquid medicines from being contaminated with each other and causing drug waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 2 is a perspective view of a sealed medication dispensing and drug delivery device according to a first embodiment of the present invention.

[0010] Figure 2 This is an exploded view of the sealed medication dispensing and drug delivery device according to the first embodiment of the present invention.

[0011] Figure 3 FIG1 is a top view of the sealed medication dispensing and drug delivery device according to the first embodiment of the present invention.

[0012] Figure 4 for Figure 3 Cross-sectional view along the 4-4 direction.

[0013] Figure 5 for Figure 4 Enlarged view of the connection port.

[0014] Figure 6 This is an enlarged view of the connection port of the second embodiment of the present invention.

[0015] Figure 7 for Figure 5 An enlarged view of the connection port and the connector.

[0016] Figure 8 for Figure 4 An enlarged view of the operating parts and the cover.

[0017] Figure 9 for Figure 3 Cross-sectional view taken along direction 9-9.

[0018] Figure 10 for Figure 9 An enlarged view of the connection port and the connector.

[0019] Figure 11 3D is a perspective view of a sealed medication dispensing and drug delivery device according to a third embodiment of the present invention.

[0020] Figure 12 This is an exploded view of a sealed medication dispensing and drug delivery device according to a third embodiment of the present invention.

[0021] Figure 13 for Figure 12 An enlarged view of the operating parts and the cover.

[0022] Figure 14 FIG. 1 is a top view of a sealed medication dispensing and drug delivery device according to a third embodiment of the present invention.

[0023] Figure 15 for Figure 14 Cross-sectional view along the 15-15 direction.

[0024] Figure 16 for Figure 15 Enlarged view of the connection port.

[0025] Figure 17-1 for Figure 15 An enlarged view of the operating parts and the cover.

[0026] Figure 17-2 It is an enlarged view of another embodiment of the operating member and the cover.

[0027] Figure 18 FIG. 4 is a perspective view of a connector according to a fourth embodiment of the present invention.

[0028] Figure 19 FIG. 4 is a top view of a connector according to a fourth embodiment of the present invention.

[0029] Figure 20 for Figure 19 Cross-sectional view along the 20-20 direction.

[0030] Figure 21 for Figure 20 Exploded diagram.

[0031] Figure 22 This is a combined line diagram of the two needles at the first end and the second end of the fourth embodiment of the present invention.

[0032] Figure 23 This is a perspective view of a connector according to a fifth embodiment of the present invention.

[0033] Figure 24 This is an exploded view of a connector according to a fifth embodiment of the present invention.

[0034] Figure 25 FIG. 1 is a top view of a connector according to a fifth embodiment of the present invention.

[0035] Figure 26 for Figure 25 Cross-sectional view along the 26-26 direction.

[0036] Figure 27 This is an exploded view of the two needles at the first end and the second end of the fifth embodiment of the present invention, wherein Figure 27 For the first perspective.

[0037] Figure 28 This is an exploded view of the two needles at the first end and the second end of the fifth embodiment of the present invention, wherein Figure 28 For the second perspective.

[0038] Figure 29 4 is a perspective view of a sealed medication dispensing and drug delivery device according to a sixth embodiment of the present invention.

[0039] Figure 30FIG. 1 is a top view of a sealed medication dispensing and drug delivery device according to a sixth embodiment of the present invention.

[0040] Figure 31 for Figure 30 Cross-sectional view taken along the 31-31 direction.

[0041] Figure 32 for Figure 31 Enlarged view of the connector port and connector separated.

[0042] Figure 33 for Figure 31 An enlarged view of the connection port and the connector. DETAILED DESCRIPTION

[0043] In order to explain the present invention more clearly, preferred embodiments are given and described in detail with reference to the accompanying drawings. Figures 1 to 10 As shown, the sealed medication dispensing and drug delivery device 10 according to the first embodiment of the present invention includes a suction tube 12 , a push-pull rod assembly 14 and a connection port 16 .

[0044] The injection tube 12 includes a tube wall and a partition wall. The tube wall encloses a receiving space. The partition wall is disposed within the receiving space and forms a first cavity and a second cavity, each of which is independent. In the first embodiment of the present invention, the tube wall is a first tube body 12b having the receiving space. The partition wall encloses a second tube body 12a. The second tube body 12a is disposed within the receiving space of the first tube body 12b. The second tube body 12a forms a first cavity, and a second cavity 162 is formed between the first tube body 12b and the second tube body 12a. Figure 4 shown.

[0045] The push-pull rod assembly 14 includes a rod body 142, a piston 144, an operating member 146 and a cover 148. The cover 148 is fixedly mounted and sealed to the first port of the extraction tube 12. In the first embodiment of the present invention, the connection portion 1481 of the cover 148 and the connection portion 12b1 of the first tube body 12b are tightly connected to each other, wherein the connection method includes bonding or high-frequency welding. The rod body 142 is passed through the through hole of the cover 148, one end of the rod body 142 is connected to the operating member 146, and the other end thereof is connected to the piston 144. In the first embodiment of the present invention, the push-pull rod assembly 14 includes a sealing ring 147 which is sleeved on the rod body 142 and is arranged at the through hole of the cover 148, as shown in FIG. Figure 8As shown. The piston 144 is airtightly disposed in the first cavity and can be operated to move in the first cavity. The piston 144 divides the first cavity into a first area and a second area, and the second area is closer to the first port of the withdrawal tube 12 than the first area. The first area and the second area are not connected to each other in the withdrawal tube 12, and the second area is connected to the second cavity at the first port. In the first embodiment of the present invention, the first tube body 12b has a first port, and the cover is fixedly installed and sealed to the first port of the first tube body 12b, but is not sealed to the second tube body 12a, so that the second area of ​​the first cavity is connected to the second cavity 162 at the first port.

[0046] Connecting ports 16, 16' are fixedly connected to the second ports of the withdrawal tubes 12, 12', which are opposite to the first ports. Connecting ports 16, 16' include a first channel 122, a second channel 124, and at least one soft plug 166. First channel 122 communicates with the first cavity, and second channel 124 communicates with the second cavity 162. Soft plug 166 is airtightly fixed to one end of first channel 122 and second channel 124, creating a sealed environment within the sealed dispensing and drug delivery device 10.

[0047] When the sealed dispensing and delivery device 10 is connected to a liquid medicine container (not shown), the soft stopper 166 can be operably broken, thereby connecting the first channel 122 and the second channel 124 to each other through the liquid medicine container. When the operating member 146 of the push-pull rod assembly 14 is pulled by an external force, and the piston 144 is driven by the rod body 142 to move toward the first end of the withdrawal tube 12, the first area of ​​the first cavity expands to draw liquid medicine from the liquid medicine container through the first channel 122 into the first area. At the same time, the second area shrinks, allowing air in the second area to be discharged into the liquid medicine container through the second cavity 162 and the second channel 124, thereby forming another sealed environment between the sealed dispensing and delivery device 10 and the liquid medicine container.

[0048] In the first embodiment of the present invention, the connection port 16 includes at least one column 121, which is fixed to the second end of the withdrawal tube 12. The first channel 122 and the second channel 124 are disposed in the column 121, and the soft plug 166 is airtightly fixed to the end of the column 121 away from the withdrawal tube 12. Figure 5 As shown. Figure 5 In the embodiment, the soft plug 166 has pinholes 166 a and 166 b . The pinhole 166 a is connected to the first channel 122 , and the pinhole 166 b is connected to the second channel 124 .

[0049] The column 121 is fixedly connected to the second end of the second tube 12a in the withdrawal tube 12. The first channel 122 in the column 12 corresponds to the first cavity, connecting the first channel 122 and the first cavity. The connection port 16 includes at least one sleeve 161 for accommodating the column 121, and a soft plug 166 is airtightly sandwiched between the column 121 and the sleeve 161.

[0050] In the first embodiment of the present invention, the column 121 has a first side and a second side that are opposite to each other. The first channel 122 is located near the first side, while the second channel 124 is located near the second side. The sleeve 161 has a first groove edge and a second groove edge that are opposite to each other. The first side of the column 121 is disposed correspondingly to the first groove edge of the sleeve 161, while the second side of the column 121 is disposed correspondingly to the second groove edge of the sleeve 161. Because the outer diameter of the first side is different from the outer diameter of the second side, and the inner diameter of the first groove edge is different from the inner diameter of the second groove edge, the first side of the column 121 cannot be disposed on the second groove edge of the sleeve 161, and the second side of the column 121 cannot be disposed on the first groove edge of the sleeve 161.

[0051] Please refer to Figure 6 The columns include a first column 121a and a second column 121b. The first channel 122 is disposed within the first column 121a, while the second channel 124 is disposed within the second column 121b. Furthermore, the soft plug 166' is airtightly secured to the ends of the first and second columns 121a, 121b, away from the withdrawal tube 12'. In the second embodiment of the present invention, the soft plug 166' includes a first soft plug and a second soft plug. The first soft plug is airtightly secured to the end of the first column 121a away from the withdrawal tube 12', while the second soft plug is airtightly secured to the end of the second column 121b away from the withdrawal tube 12'. The first column 121a and the second column 121b are fixedly connected to the second end of the second tube 12a in the withdrawal tube 12'. The first channel 122 in the first column 121a corresponds to the first cavity, connecting the first channel 122 with the first cavity. The connection port 16' includes at least one sleeve 161 for accommodating the first column 121a and the second column 121b, and a soft plug 166' is airtightly sandwiched between the first and second columns 121a, 121b, and the sleeve 161. The sleeve 161 has a first groove edge and a second groove edge that are opposite to each other. The first column 121a is disposed corresponding to the first groove edge of the sleeve 161, and the second column 121b is disposed corresponding to the second groove edge of the sleeve 161. Furthermore, since the outer diameter of the first column 121a is different from the outer diameter of the second column 121b, and the inner diameter of the first groove edge is different from the inner diameter of the second groove edge, the first column 121a cannot be set at the second groove edge of the sleeve 161, and the second column 121b cannot be set at the first groove edge of the sleeve 161.

[0052] In the second embodiment of the present invention, the housing includes a first housing 161a and a second housing 161b, and the soft plug 166' includes a first soft plug and a second soft plug. The first housing 161a is used to accommodate the first column 121a, and the second housing 161b is used to accommodate the second column 121b. The first soft plug is airtightly sandwiched between the first column 121a and the first housing 161a, and the second soft plug is airtightly sandwiched between the second column 121b and the second housing 161b. Figure 6 Since the outer diameter of the first column 121a is different from the outer diameter of the second column 121b, and the inner diameter of the first sleeve 161a is different from the inner diameter of the second sleeve 161b, the first column 121a cannot be disposed in the second sleeve 161b, and the second column 121b cannot be disposed in the first sleeve 161a.

[0053] Please refer to Figure 11 to Figure 1 As shown in FIG7 , a sealed medication dispensing and drug delivery device 30 according to a third embodiment of the present invention includes a suction tube 32 , a push-pull rod assembly 34 , and a connection port 36 .

[0054] exist Figure 15 In the embodiment, the injection tube 32 includes a tube wall and a partition wall. The tube wall encloses a receiving space, and the partition wall is disposed within the receiving space. The partition wall is sheet-shaped and fixed to the inner side of the tube wall, dividing the receiving space into a first cavity 32a and a second cavity 32b, respectively.

[0055] The push-pull rod assembly 34 includes a rod body 342, a piston 344, an operating member 346 and a cover. The cover is fixedly mounted and sealed to the first port of the extraction tube 32, wherein the sealing method includes bonding or high-frequency welding. In the third embodiment of the present invention, the cover includes a first part 348a and a second part 348b adjacent to each other, the first part 348a corresponds to and covers the first cavity 32a, and the first part 348a includes a through-hole, so that the rod body 342 passes through the through-hole of the first part 348a and can be operated to move in the first cavity 32a. In the third embodiment of the present invention, the push-pull rod assembly 34 includes a sealing ring 349 which is sleeved on the rod body 342 and is arranged at the through-hole of the first part 348a of the cover, as shown in FIG. Figure 17-1 In the third embodiment of the present invention, the connecting portion 348a1 of the first portion 348a of the cover and the connecting portion 32a1 of the first tube 32a are tightly connected to each other, while the connecting portion 348b1 of the second portion 348b of the cover and the connecting portion 32b1 of the second tube 32b are tightly connected to each other, wherein the connection method includes bonding or high-frequency welding.

[0056] The second portion 348b corresponds to and covers the second cavity 32b. The second portion 348b includes an opening and a plug cover 347. The plug cover 347 can be operated to be plugged into the opening to form a sealed environment, or removed from the opening to open the second cavity 32b to the outside.

[0057] Figure 17-2 and Figure 17-1 Similar, but Figure 17-2 and Figure 17-1 The difference is that Figure 17-2 The plug cover 347' is a breathable valve, and the plug cover 347' has an openable and closable lid and a filter paper 347a disposed in the plug cover 347'.

[0058] The piston 344 is airtightly disposed in the first cavity 32a and is operable to move within the first cavity 32a. The piston 344 divides the first cavity 32a into a first region and a second region, with the second region being closer to the first port of the withdrawal tube 32 than the first region. The first region and the second region are not connected to each other within the withdrawal tube 32, while the second region is connected to the second cavity at the first port. In a third embodiment of the present invention, the first cavity 32a and the second cavity 32b have first ports, and a cover is fixedly mounted and sealed to the tube wall at the first ports of the first cavity 32a and the second cavity 32b, but not sealed to the partition wall, so that the second region of the first cavity 32a is connected to the second cavity 32b at the first port.

[0059] The connection port 36 is fixedly connected to the second port of the withdrawal tube 32, which is opposite the first port. The connection port 36 includes a first channel 322, a second channel 324, and at least one soft plug 366. The first channel 322 is connected to the first cavity 32a, and the second channel 324 is connected to the second cavity 32b. The soft plug 366 is airtightly fixed to one end of the first channel 322 and the second channel 324, forming a sealed environment for the sealed dispensing and administration device 30.

[0060] When the sealed dispensing and administering device 30 is connected to a liquid medicine container (not shown), the soft stopper 366 can be operably broken, thereby connecting the first channel 322 and the second channel 324 to each other through the liquid medicine container. When the operating member 346 of the push-pull rod assembly 34 is pulled by an external force, and the piston 344 is driven by the rod body 342 to move toward the first end of the withdrawal tube 32, the first area of ​​the first cavity 32a expands, thereby drawing liquid medicine from the liquid medicine container through the first channel 322 into the first area. At the same time, the second area of ​​the first cavity 32a contracts, allowing air in the second area to be discharged into the liquid medicine container through the second cavity 32b and the second channel 344, thus forming another sealed environment between the sealed dispensing and administering device 30 and the liquid medicine container.

[0061] The connection port 36 includes at least one column, which is fixed to the second end of the withdrawal tube 32. The first channel 322 and the second channel 324 are disposed in the column, and the soft plug 366 is airtightly fixed to the end of the column away from the withdrawal tube 32. In the third embodiment of the present invention, the column includes a first column 362a and a second column 362b, the first channel 322 is disposed in the first column 362a, and the second channel 324 is disposed in the second column 362b; and the soft plug 366 is airtightly fixed to the ends of the first column 362a and the second column 362b away from the withdrawal tube 32. In the third embodiment of the present invention, the soft plug 366 includes a first soft plug and a second soft plug; the first soft plug is airtightly fixed to the end of the first column 362a away from the withdrawal tube 32, and the second soft plug is airtightly fixed to the end of the second column 362b away from the withdrawal tube 32. The first column 362a and the second column 362b are fixedly connected to the second port of the withdrawal tube 32. The first channel 322 in the first column 362a corresponds to the first cavity 32a, so that the first channel 322 is connected to the first cavity 32a; the second channel 324 in the second column 362b corresponds to the second cavity 32b, so that the second channel 324 is connected to the second cavity 32b. Figure 15 In the embodiment, the soft plug 366 has pinholes 366a and 366b. Pinhole 366a is connected to the first channel 322, while pinhole 366b is connected to the second channel 324. The connection port 36 includes a ferrule 363. A groove 364 is formed between the ferrule 363 and the first column 362a and the second column 362b.

[0062] Please refer to Figure 7 、 Figure 10 、 Figures 18 to 22 As shown, the connector 20 of the fourth embodiment of the present invention is detachably connected to the connection port 16. The connector 20 includes a first end 22 and a second end 24 facing away from each other. The first end 22 includes a first needle 21a and a second needle 21b arranged adjacent to each other in the same direction. When the first end 22 of the connector 20 is connected to the connection port 16, the first needle 21a and the second needle 21b break through the cushion 166, and the first needle 21a extends into the first channel 122, while the second needle 21b extends into the second channel 124. Figure 7 The second end portion 24 of the connector 20 is detachably connected to the drug container, and the second end portion 24 is connected to the first needle 21 a of the first end portion 22 .

[0063] exist Figure 20In the embodiment, the first end portion 22 includes a hollow column 22 and an elastic member, and the first needle 21a, the second needle 21b, and the elastic member are disposed within the hollow column 22. When the connector 20 is not connected to the connection port 16, the elastic member covers the first needle 21a and the second needle 21b, so that the first needle 21a and the second needle 21b are not exposed to the outside. In the fourth embodiment of the present invention, the longitudinal direction of the hollow column 22 is parallel to the longitudinal direction of the first needle 21a and the second needle 21b. When the connector 20 is connected to the connection port 16, the elastic member can be operatively compressed along the longitudinal direction of the hollow column 22 toward the second end portion 24, causing the first needle 21a and the second needle 21b to protrude from the elastic member and break through the cushion 166.

[0064] In the fourth embodiment of the present invention, the elastic member 23 includes an outer elastic body 23a and an inner elastic body 23b. The outer elastic body 23a covers the inner elastic body 23b and is located between the hollow column 22 and the inner elastic body 23b. Figure 18 In the figure, the elastic member 23 has pinholes 232 and 234. Pinhole 232 corresponds to the first needle 21a, and pinhole 234 corresponds to the second needle 21b. When the connector 20 is not connected to the connection port 16, the inner elastic member 23b wraps around the first and second needles 21a, 21b, while the outer elastic member 23a covers the first and second needles 21a, 21b. When the connector 20 is connected to the connection port 16, the outer and inner elastic members 23a, 23b are pushed by the connection port 16 and compressed along the length of the hollow column 22 toward the second end 24, causing the first and second needles 21a, 21b to protrude from the outer elastic member 23a and break through the cushion 166.

[0065] It is worth mentioning that when the connector 20 is disconnected from the connection port 16, the outer elastic body 23a and the inner elastic body 23b are stretched along the long direction of the hollow column 22 away from the second end 24 due to their own elastic force, and the inner elastic body 23b assists the outer elastic body 23a to continue to contact the connection port 16 until the first needle 21a and the second needle 21b are once again covered by the outer elastic body 23a, so that the first needle 21a and the second needle 21b are not exposed to the outside, thereby ensuring that the user will not be injured by contact with the first needle 21a and the second needle 21b.

[0066] The connection port 16 includes a ferrule 163, and a groove 164 is included between the ferrule 163 and the sleeve body 161. The ferrule 163 is used to be correspondingly connected to the hollow column 22. The inner side of the ferrule 163 includes a groove 16a, and the outer side of the hollow column 22 includes a rib 22a. When the ferrule 163 is correspondingly connected to the hollow column 22, the groove 16a and the rib 22a cooperate with each other, so that the first needle 21a can only be inserted into the first channel 122, and the second needle 21b can only be inserted into the second channel 124, but the first needle 21a cannot be inserted into the second channel 124, and the second needle 21b cannot be inserted into the first channel 122, as shown in FIG. Figure 1 and Figure 7 shown.

[0067] The outer side of the ferrule 163 includes at least one hooking member 167a, 167b, and the outer side of the hollow column 22 includes at least one hooked member 221a, 221b. When the ferrule 163 is correspondingly sleeved on the hollow column 22, the fastening ends 167a1, 167b1 of the hooking members 167a, 167b are correspondingly hooked with the hooked members 221a, 221b, so that the connector 20 is stably connected to the connection port 16. Figure 10 shown.

[0068] The second end portion 24 includes a protruding head 26, which is detachably connected to the liquid medicine container. The protruding head 26 includes a first flow channel 262 and a second flow channel 264 that are isolated from each other. The first flow channel 262 is connected to the first needle 21a, and the second flow channel 264 is connected to the second needle 21b. Figure 20 In the fourth embodiment of the present invention, the opening of the first flow channel 262 of the puncturing head 26 extends from the tip 261 of the puncturing head 26 to the base of the puncturing head 26. In the fourth embodiment of the present invention, the opening of the first flow channel 262 of the puncturing head 26 is larger than the opening of the second flow channel 264.

[0069] The connector 20 includes a filter paper 28 disposed between the second flow channel 264 and the second needle 21b for separating the gas from the liquid (medicine) to prevent the medicine from flowing from the second flow channel 264 to the second needle 21b and preventing the medicine from entering the second needle 21b. Figure 4 In the second cavity 162 for gas circulation in the withdrawal tube 12; in addition, the filter paper 28 can also be used to filter out impurities in the air in the sealed dispensing and dosing device 10.

[0070] In the fourth embodiment of the present invention, the second end portion 24 includes a retaining ring for removably securing the liquid medicine container. The retaining ring includes a plurality of spring clips arranged in a ring at intervals 244 from each other. The spring clips are configured to accommodate liquid medicine containers of varying outer diameters. Each spring clip includes a flange 242 configured to removably engage the outer surface of the liquid medicine container.

[0071] exist Figure 22 In the figure, the bottom 21a2 of the first needle 21a is connected to the connecting hole 263a of the puncturing head 26, and the bottom of the second needle 21b includes a plurality of short walls 21b2 and a flow path 21b3. The short walls 21b2 and the flow path 21b3 are connected to the plurality of short walls 263b in the recess 263 of the puncturing head 26, so as to prevent the liquid medicine from flowing too fast and breaking through the filter paper 28.

[0072] Please refer to Figures 23 to 28 As shown, a connector 40 according to a fifth embodiment of the present invention is removably connected to the connection port 16. The connector 40 includes a first end 42 and a second end 44, which are opposite each other. The first end 42 includes a first needle 41a and a second needle 41b, which are arranged adjacent to each other in the same direction. When the first end 42 of the connector 40 is connected to the connection port 16, the first needle 41a and the second needle 41b break through the cushion 166, and the first needle 41a extends into the first channel 122, while the second needle 41b extends into the second channel 124. The second end 44 of the connector 40 is removably connected to the liquid medicine container and is connected to the first needle 41a of the first end 42.

[0073] exist Figure 24 In the embodiment, the first end portion 42 includes a hollow column 42 and an elastic member 43, and the first needle 41a, the second needle 41b and the elastic member 43 are disposed in the hollow column 42. Figure 23 In the embodiment, the elastic member 43 includes elastic members 43a and 43b. The elastic member 43a has a needle hole 432. The elastic member 43b has a needle hole 434. The needle hole 432 corresponds to the first needle 41a, and the needle hole 434 corresponds to the second needle 41b. Figure 24 In the embodiment, the hollow column 42 includes two through-holes 422, one of which corresponds to the elastic member 43a, and the other of which corresponds to the elastic member 43b. When the connector 40 is not connected to the connection port 16, the elastic member 43 covers the first needle 41a and the second needle 41b, preventing the first needle 41a and the second needle 41b from being exposed. In the fifth embodiment of the present invention, the length of the hollow column 42 is parallel to the length of the first needle 41a and the second needle 41b. When the connector 40 is connected to the connection port 16, the elastic member is operatively compressed along the length of the hollow column 42 toward the second end 44, causing the first needle 41a and the second needle 41b to protrude from the elastic member 43 and break through the cushion 166.

[0074] Connector 16 includes a ferrule 163, with a recess 164 formed between ferrule 163 and housing 161. Ferrule 163 is designed to be coupled to hollow column 42. The inner surface of ferrule 163 includes a groove 16a, while the outer surface of hollow column 42 includes a rib 42a. When ferrule 163 is coupled to hollow column 42, the groove 16a and rib 42a engage with each other, allowing first needle 41a to extend only into first channel 122 and second needle 41b to extend only into second channel 124. However, first needle 41a cannot extend into second channel 124, and second needle 41b cannot extend into first channel 122.

[0075] The outer surface of the collar 163 includes at least one hooking member 167a, 167b, while the outer surface of the hollow post 42 includes at least one hooked member 421a, 421b. When the collar 163 is correspondingly sleeved onto the hollow post 42, the hooking members 167a, 167b and the hooked members 421a, 421b engage with each other, stably connecting the connector 40 to the connection port 16.

[0076] In the fifth embodiment of the present invention, the second end portion 44 includes an infusion head 453 and a fixing ring. The infusion head 453 includes third flow channels 444a and 452. The third flow channel 444a is connected to the first needle 41a. Figure 27 As shown, the bottom 41a1 of the first needle 41a is connected to the third flow channel 444a and 452; the fixing ring includes an internal thread 442 for detachably screwing with the external thread (not shown) of the liquid medicine container. The connector 40 includes a check washer 48 disposed between the second end 44 and the second needle 41b. Specifically, the check washer 48 is fixedly disposed between the groove 454 and the bottom 41b1 of the second needle 41b, isolating the third flow channel 444a from the second needle 41b, thereby separating the gas from the liquid (liquid medicine) and preventing the liquid medicine from flowing into the container. Figure 4 In the second cavity 162 for gas circulation in the injection tube 12.

[0077] Please refer to Figures 29 to 33 As shown, the sealed medication dispensing and drug delivery device 50 according to the sixth embodiment of the present invention includes a suction tube 52 , a push-pull rod assembly 54 and a connecting port 56 .

[0078] The injection tube 52 includes a tube wall and a partition wall. The tube wall is arranged to form an accommodation space. The partition wall is arranged in the accommodation space and forms a first cavity and a second cavity, each of which is independent. In the sixth embodiment of the present invention, the tube wall is a first tube body 52b and has the accommodation space. The partition wall is arranged to form a second tube body 52a. The second tube body 52a is arranged in the accommodation space of the first tube body 52b. The second tube body 52a forms the first cavity, and the second cavity 562 is formed between the first tube body 52b and the second tube body 52a. Figure 31 shown.

[0079] The push-pull rod assembly 54 includes a rod body 542, a piston 544, an operating member 546 and a cover 548. The cover 548 is fixedly mounted and sealed to the first port of the extraction tube 52. In the sixth embodiment of the present invention, the connection portion of the cover 548 and the connection portion of the first tube body 52b are tightly connected to each other, wherein the connection method includes bonding or high-frequency welding. The rod body 542 is passed through the through hole of the cover 548, one end of the rod body 542 is connected to the operating member 546, and the other end thereof is connected to the piston 544. In the sixth embodiment of the present invention, the push-pull rod assembly 54 includes a sealing ring 547 which is sleeved on the rod body 542 and is arranged at the through hole of the cover 548, as shown in FIG. Figure 31 As shown. The piston 544 is airtightly disposed in the first cavity and can be operated to move in the first cavity. The piston 544 divides the first cavity into a first area and a second area, and the second area is closer to the first port of the withdrawal tube 52 than the first area. The first area and the second area are not connected to each other in the withdrawal tube 52, and the second area is connected to the second cavity at the first port. In the sixth embodiment of the present invention, the first tube body 52b has a first port, and the cover 548 is fixed and sealed to the first port of the first tube body 52b, but is not sealed to the second tube body 52a, so that the second area of ​​the first cavity is connected to the second cavity 562 at the first port.

[0080] The connection port 56 is fixedly connected to the second port of the withdrawal tube 52, which is opposite the first port. The connection port 56 includes a first channel 522, a second channel 524, an elastic body 565, a leak-proof ring 566, and soft plugs 568a and 568b. The first channel 522 is connected to the first cavity, and the second channel 524 is connected to the second cavity 562. The leak-proof ring 566 is airtightly fixed to one end of the first channel 522 and the second channel 524, forming a sealed environment for the sealed dispensing and drug delivery device 50.

[0081] The connector 60 of the sixth embodiment of the present invention is detachably connected to the connection port 56. The connector 60 includes a first end portion 62 and a second end portion 64 facing away from each other. The first end portion 62 includes a first needle 61a and a second needle 61b arranged adjacent to each other in the same direction. When the first end portion 62 of the connector 60 is connected to the connection port 56, the top concave surface 61a1 of the first needle 61a pushes against the soft plug 568a, and the top concave surface 61b1 of the second needle 61b pushes against the soft plug 568b. The first needle 61a is correspondingly connected to the first channel 522, and the second needle 61b is correspondingly connected to the second channel 524. Figure 33As shown. The second end 64 of the connector 60 is detachably connected to the liquid medicine container and is connected to the first needle 61a of the first end 62. In the sixth embodiment of the present invention, when the first end 62 of the connector 60 is connected to the connection port 56, the top concave surface 61a1 of the first needle 61a pushes against the soft plug 568a, and the top concave surface 61b1 of the second needle 61b pushes against the soft plug 568b. The soft plugs 568a and 568b push against the elastic body 565, causing the elastic body 565 to be compressed toward the second port of the withdrawal tube 52.

[0082] exist Figure 32 In the figure, the first end portion 62 includes a hollow column 62 and an elastic member 63, and the first needle 61a, the second needle 61b and the elastic member 63 are arranged in the hollow column 62. When the connector 60 is not connected to the connection port 56, the elastic member 63 roughly covers the first needle 61a and the second needle 61b, so as to prevent the liquid and / or gas remaining in the first needle 61a and the second needle 61b from leaking out. In the sixth embodiment of the present invention, the long direction of the hollow column 62 is parallel to the long direction of the first needle 61a and the second needle 61b. When the connector 60 is connected to the connection port 56, the elastic member 63 can be operated to be compressed along the long direction of the hollow column 62 toward the second end portion 64, so that the first needle 61a and the second needle 61b protrude from the elastic member 63 and push against the soft plugs 568a and 568b respectively. Figure 33 shown.

[0083] At this point, the second end 64 of the connector 60 is detachably connected to the liquid medicine container, thereby connecting the first channel 522 and the second channel 524 to each other through the liquid medicine container. When the operating member 546 of the push-pull rod assembly 54 is pulled by an external force, and the piston 544 is driven by the rod body 542 to move toward the first end of the injection tube 52, the first area of ​​the first cavity expands to draw liquid medicine from the liquid medicine container through the first channel 522 into the first area. At the same time, the second area contracts, allowing air in the second area to be discharged into the liquid medicine container through the second cavity 562 and the second channel 524, thereby forming another closed environment between the sealed dispensing and dispensing device 50 and the liquid medicine container.

[0084] The sealed dispensing and drug delivery device provided by the present invention does not have an outwardly exposed needle, thereby preventing medical personnel from being pricked by needles, thereby reducing the risk of infection caused by equipment during the medical process. In addition, the sealed dispensing and drug delivery device provided by the present invention can form a closed environment with the liquid medicine container, thereby preventing concentration deviations caused by the absorption of volatile liquid medicines, and also preventing medical personnel from inhaling volatile liquid medicines and posing potential health threats. On the other hand, the sealed dispensing and drug delivery device provided by the present invention can avoid the opportunity to use the same needle to absorb different liquid medicines, thereby preventing different liquid medicines from contaminating each other and causing drug waste.

[0085] The above description is only a preferred embodiment of the present invention. Any equivalent changes made by applying the present description and the scope of the patent application should be included in the patent scope of the present invention.

[0086] Description of Reference Numerals

[0087] [The present invention]

[0088] 10, 30, 50: Sealed dispensing and drug delivery device

[0089] 12, 12', 32, 52: injection tube

[0090] 12a, 52a: Second tube body

[0091] 12b, 52b: first tube body

[0092] 121: Column

[0093] 121a, 362a: First column

[0094] 121b, 362b: Second column

[0095] 122, 322, 522: First channel

[0096] 124, 324, 524: Second channel

[0097] 14, 34, 54: Push-pull rod assembly

[0098] 142, 342, 542: Rod body

[0099] 144, 344, 544: Piston

[0100] 146, 346, 546: operating parts

[0101] 147, 349, 547: Sealing ring

[0102] 148, 548: Block

[0103] 1481, 12b1, 348a1, 32a1, 348b1, 32b1: Connecting part

[0104] 16, 16', 36, 56: Connector

[0105] 16a, 454: groove

[0106] 161: Body

[0107] 161a: First set

[0108] 161b: Second set

[0109] 162, 562: Second cavity

[0110] 163: Ring

[0111] 164: Storage tank

[0112] 166, 166', 366, 568a, 568b: soft plug

[0113] 166a, 166b, 232, 234, 432, 434: Pinhole

[0114] 167a, 167b: hook fasteners

[0115] 167a, 167b1: snap-fit ​​end

[0116] 20, 40: Connector

[0117] 21a, 41a, 61a: First needle

[0118] 21a2, 41a1, 41b1: bottom

[0119] 21b, 41b, 61b: Second needle

[0120] 21b2, 263b: Short wall

[0121] 21b3: flow path

[0122] 22, 42, 62: First end (hollow column)

[0123] 22a, 42a: ribs

[0124] 221a, 221b, 421a, 421b: fasteners

[0125] 23: Elastomer

[0126] 23a: External elastic body

[0127] 23b: Internal elastic body

[0128] 24, 44, 64: Second end

[0129] 242: flange

[0130] 244: Interval

[0131] 26: Spike Head

[0132] 261: Cutting Edge

[0133] 262: First runner

[0134] 263a: Connector hole

[0135] 264: Second flow channel

[0136] 28: Filter paper

[0137] 32a: First cavity

[0138] 32b: Second cavity

[0139] 348a: Part I

[0140] 348b: Part 2

[0141] 347, 347': Seguy

[0142] 347a: filter paper

[0143] 43, 43a, 43b: elastic parts

[0144] 453: Infusion head

[0145] 442: Internal thread

[0146] 444a, 452: Third flow channel

[0147] 48: Backstop pad

[0148] 565, 63: Elastomer

[0149] 566: leak-proof ring

[0150] 61a1, 61b1: concave top

Claims

1. A sealed dispensing and drug delivery device, comprising: A pumping tube comprising a tube wall and a partition wall, wherein the tube wall encloses a receiving space, and the partition wall is disposed within the receiving space to form a first cavity and a second cavity, each of which is independent. The partition wall is sheet-shaped and fixed to the inner side of the tube wall, dividing the receiving space into the first cavity and the second cavity, each of which is independent. A push-pull rod assembly includes a cover, a rod, an operating member and a piston, wherein the cover is fixedly mounted and sealed to a first port of the withdrawal tube, the rod is passed through a through hole of the cover, one end of the rod is connected to the operating member, and the other end is connected to the piston, the piston is airtightly arranged in the first cavity and can be operated to move in the first cavity; the piston divides the first cavity into a first area and a second area, the second area is closer to the first port of the withdrawal tube than the first area, and the first area and the second area are in the withdrawal tube. The first and second regions are not connected to each other, and the second region is connected to the second cavity at the first port; the sealing cover includes a first portion and a second portion adjacent to each other, the first portion corresponds to and covers the first cavity, the first portion includes the through-hole, and the rod body is inserted through the through-hole in the first portion and can be operated to move in the first cavity; the second portion corresponds to and covers the second cavity, the second portion includes an opening and a plug cover, the plug cover can be operated to be correspondingly plugged into the opening to form a sealed environment, or removed from the opening to open the second cavity to the outside; a connecting port fixedly connected to a second port of the withdrawal tube, the second port being opposite to the first port, the connecting port comprising a first channel, a second channel, and at least one soft plug, the first channel being connected to the first cavity, the second channel being connected to the second cavity, the at least one soft plug being airtightly fixed to one end of the first channel and the second channel, so that the sealed dispensing and drug delivery device forms a sealed environment; In which, when the sealed dispensing and delivery device is connected to a liquid medicine container, the at least one soft plug can be operably broken through, so that the first channel and the second channel are connected to each other through the liquid medicine container; when the operating part of the push-pull rod assembly is pulled by external force, and the piston is driven to move toward the first port of the injection tube through the rod body, the first area of ​​the first cavity becomes larger to draw a liquid medicine from the liquid medicine container through the first channel into the first area, and at the same time the second area becomes smaller, so that the air in the second area is discharged into the liquid medicine container through the second cavity and the second channel, so that the sealed dispensing and delivery device and the liquid medicine container form another sealed environment.

2. The sealed dispensing and drug delivery device according to claim 1, wherein: The tube wall is a first tube body and has the accommodating space. The partition wall is enclosed to form a second tube body. The second tube body is arranged in the accommodating space of the first tube body. The second tube body constitutes the first cavity, and the second cavity is formed between the first tube body and the second tube body.

3. The sealed dispensing and drug delivery device according to claim 2, wherein: The first tube has the first port. The cover is fixed and sealed to the first port of the first tube but not to the second tube, so that the second area of ​​the first cavity communicates with the second cavity at the first port.

4. The sealed dispensing and drug delivery device according to claim 1, wherein: The cover is fixed and sealed to the first port of the withdrawal tube but is not sealed to the partition wall, so that the second area of ​​the first cavity is connected to the second cavity at the first port.

5. The sealed dispensing and drug delivery device according to claim 1, wherein: The plug cover includes a filter paper, and the filter paper is used for filtering gas.

6. The sealed dispensing and drug delivery device according to claim 1, wherein: The push-pull rod assembly includes a sealing ring sleeved on the rod body and arranged at the through hole of the cover.

7. A sealed dispensing and drug delivery device, comprising: A pumping tube comprising a tube wall and a partition wall, wherein the tube wall encloses a receiving space, and the partition wall is disposed in the receiving space to form a first cavity and a second cavity, each of which is independent; A push-pull rod assembly comprising a cover, a rod, an operating member, and a piston, wherein the cover is fixedly mounted and sealed to a first port of the withdrawal tube, the rod is inserted through a through hole of the cover, one end of the rod is connected to the operating member, and the other end is connected to the piston, the piston is airtightly disposed in the first cavity and can be operated to move within the first cavity; the piston divides the first cavity into a first area and a second area, the second area being closer to the first port of the withdrawal tube than the first area, the first area and the second area being disconnected from each other within the withdrawal tube, and the second area being connected to the second cavity at the first port; a connecting port fixedly connected to a second port of the withdrawal tube, the second port being opposite to the first port, the connecting port comprising a first channel, a second channel, and at least one soft plug, the first channel being connected to the first cavity, the second channel being connected to the second cavity, the at least one soft plug being airtightly fixed to one end of the first channel and the second channel, so that the sealed dispensing and drug delivery device forms a sealed environment; The connecting port includes at least one column, the at least one column is fixedly connected to the second port of the withdrawal tube, the first channel and the second channel are disposed within the at least one column, and the at least one soft plug is airtightly fixed to an end of the at least one column away from the withdrawal tube; In which, when the sealed dispensing and delivery device is connected to a liquid medicine container, the at least one soft plug can be operably broken through, so that the first channel and the second channel are connected to each other through the liquid medicine container; when the operating part of the push-pull rod assembly is pulled by external force, and the piston is driven to move toward the first port of the injection tube through the rod body, the first area of ​​the first cavity becomes larger to draw a liquid medicine from the liquid medicine container through the first channel into the first area, and at the same time the second area becomes smaller, so that the air in the second area is discharged into the liquid medicine container through the second cavity and the second channel, so that the sealed dispensing and delivery device and the liquid medicine container form another sealed environment.

8. The sealed dispensing and drug delivery device according to claim 7, wherein: The at least one column is fixedly connected to the second port of the second tube body in the withdrawal tube, the first channel in the at least one column corresponds to the first cavity, so that the first channel is connected to the first cavity, the connecting port includes at least one sleeve for accommodating the at least one column, and the at least one soft plug is airtightly clamped between the at least one column and the at least one sleeve; the at least one column has a first side and a second side opposite to each other, the first channel is close to the first side, and the second channel is close to the second side, and the at least one sleeve has a first groove edge and a second groove edge opposite to each other, the first side of the at least one column is correspondingly arranged at the first groove edge of the at least one sleeve, and the second side of the at least one column is correspondingly arranged at the second groove edge of the at least one sleeve.

9. The sealed dispensing and drug delivery device according to claim 7, wherein: The at least one column includes a first column and a second column, the first channel is arranged in the first column, and the second channel is arranged in the second column; and the at least one soft plug is airtightly fixed to the end of the first column and the second column away from the withdrawal tube.

10. The sealed dispensing and drug delivery device according to claim 9, wherein: The at least one soft plug includes a first soft plug and a second soft plug; the first soft plug is airtightly fixed to the end of the first column away from the withdrawal tube, and the second soft plug is airtightly fixed to the end of the second column away from the withdrawal tube.

11. The sealed dispensing and drug delivery device according to claim 9, wherein: The first column and the second column are fixedly connected to the second port of the second tube body in the extraction tube, and the first channel in the first column corresponds to the first cavity, so that the first channel is connected to the first cavity; the connecting port includes at least one sleeve for accommodating the first column and the second column, and the at least one soft plug is airtightly clamped between the first column and the second column and the at least one sleeve; the at least one sleeve has a first groove edge and a second groove edge opposite to each other, the first column is correspondingly arranged at the first groove edge of the at least one sleeve, and the second column is correspondingly arranged at the second groove edge of the at least one sleeve.

12. The sealed dispensing and drug delivery device according to claim 11, wherein: The at least one sleeve includes a first sleeve and a second sleeve, and the at least one soft plug includes a first soft plug and a second soft plug. The first sleeve is used to accommodate the first column, and the second sleeve is used to accommodate the second column. The first soft plug is airtightly sandwiched between the first column and the first sleeve, and the second soft plug is airtightly sandwiched between the second column and the second sleeve.

13. A sealed dispensing and drug delivery device, comprising: A pumping tube comprising a tube wall and a partition wall, wherein the tube wall encloses a receiving space, and the partition wall is disposed in the receiving space to form a first cavity and a second cavity, each of which is independent; A push-pull rod assembly comprising a cover, a rod, an operating member, and a piston, wherein the cover is fixedly mounted and sealed to a first port of the withdrawal tube, the rod is inserted through a through hole of the cover, one end of the rod is connected to the operating member, and the other end is connected to the piston, the piston is airtightly disposed in the first cavity and can be operated to move within the first cavity; the piston divides the first cavity into a first area and a second area, the second area being closer to the first port of the withdrawal tube than the first area, the first area and the second area being disconnected from each other within the withdrawal tube, and the second area being connected to the second cavity at the first port; a connecting port fixedly connected to a second port of the withdrawal tube, the second port being opposite to the first port, the connecting port comprising a first channel, a second channel, and at least one soft plug, the first channel being connected to the first cavity, the second channel being connected to the second cavity, the at least one soft plug being airtightly fixed to one end of the first channel and the second channel, so that the sealed dispensing and drug delivery device forms a sealed environment; When the sealed dispensing and drug delivery device is connected to a liquid medicine container, the at least one soft stopper can be operably broken through, thereby allowing the first channel and the second channel to communicate with each other through the liquid medicine container; when the operating member of the push-pull rod assembly is pulled by an external force and the piston is driven to move toward the first port of the withdrawal tube via the rod body, the first area of ​​the first cavity is enlarged to draw liquid medicine from the liquid medicine container through the first channel into the first area, while the second area is reduced, so that air in the second area is discharged into the liquid medicine container through the second cavity and the second channel, so that the sealed dispensing and drug delivery device and the liquid medicine container form another sealed environment; Among them, it includes a connector detachably connected to the connecting port, the connector includes a first end and a second end opposite to each other, the first end includes a first needle and a second needle arranged adjacent to each other in the same direction, when the first end of the connector is connected to the connecting port, the first needle and the second needle break through the at least one soft plug, and the first needle correspondingly extends into the first channel, and the second needle correspondingly extends into the second channel; the second end of the connector is detachably connected to the liquid medicine container, and the second end is connected to the first needle of the first end.

14. The sealed dispensing and drug delivery device according to claim 13, wherein: The first end portion includes a hollow column and an elastic member. The first needle, the second needle and the elastic member are disposed in the hollow column. When the connector is not connected to the connection port, the elastic member covers the first needle and the second needle.

15. The sealed dispensing and drug delivery device according to claim 14, wherein: The long direction of the hollow column is parallel to the long directions of the first needle and the second needle. When the connector is connected to the connection port, the elastic member can be operated to be compressed along the long direction of the hollow column toward the second end, so that the first needle and the second needle protrude from the elastic member and break through the at least one soft plug.

16. The sealed dispensing and drug delivery device according to claim 14, wherein: The elastic member includes an outer elastic body and an inner elastic body. The outer elastic body covers the inner elastic body and is located between the hollow column and the inner elastic body. When the connector is not connected to the connecting port, the inner elastic body is wound around the first needle and the second needle, and the outer elastic body covers the first needle and the second needle. When the connector is connected to the connecting port, the outer elastic body and the inner elastic body are pushed by the connecting port and compressed along the long direction of the hollow column toward the second end, so that the first needle and the second needle protrude from the outer elastic body and break through the at least one soft plug.

17. The sealed dispensing and drug delivery device according to claim 16, wherein: When the connector is disconnected from the connection port, the outer elastic body and the inner elastic body are stretched along the length of the hollow column away from the second end due to their own elastic force, and the inner elastic body assists the outer elastic body in maintaining contact with the connection port until the first needle and the second needle are once again covered by the outer elastic body.

18. The sealed dispensing and drug delivery device according to claim 14, wherein: The connecting port includes a ring, which is used to correspond to the hollow column. The inner side of the ring includes a groove, and the outer side of the hollow column includes a convex rib. When the ring is correspondingly sleeved on the hollow column, the groove and the convex rib cooperate with each other, so that the first needle cannot extend into the second channel, and the second needle cannot extend into the first channel.

19. The sealed dispensing and drug delivery device according to claim 13, wherein: The second end portion includes a puncturing head, which is detachably connected to the liquid medicine container. The puncturing head includes a first flow channel and a second flow channel isolated from each other. The first flow channel is connected to the first needle, and the second flow channel is connected to the second needle.

20. The sealed drug dispensing and delivering device according to claim 19, wherein the opening of the first flow channel of the piercing head is larger than the opening of the second flow channel.

21. The sealed dispensing and drug delivery device according to claim 13, wherein: The second end portion includes an infusion head and a fixing ring, the infusion head includes a third flow channel, the third flow channel is connected to the first needle, the fixing ring includes an internal thread for detachably screwing with the external thread of the liquid medicine container; the connector includes a check washer arranged between the second end portion and the second needle to isolate the third flow channel from the second needle.

22. A sealed dispensing and drug delivery device, comprising: A pumping tube comprising a tube wall and a partition wall, wherein the tube wall encloses a receiving space, and the partition wall is disposed in the receiving space to form a first cavity and a second cavity, each of which is independent; A push-pull rod assembly comprising a cover, a rod, an operating member, and a piston, wherein the cover is fixedly mounted and sealed to a first port of the withdrawal tube, the rod is inserted through a through hole of the cover, one end of the rod is connected to the operating member, and the other end is connected to the piston, the piston is airtightly disposed in the first cavity and can be operated to move within the first cavity; the piston divides the first cavity into a first area and a second area, the second area being closer to the first port of the withdrawal tube than the first area, the first area and the second area being disconnected from each other within the withdrawal tube, and the second area being connected to the second cavity at the first port; a connecting port fixedly connected to a second port of the withdrawal tube, the second port being opposite to the first port, the connecting port comprising a first channel, a second channel, and at least one soft plug, the first channel being connected to the first cavity, the second channel being connected to the second cavity, the at least one soft plug being airtightly fixed to one end of the first channel and the second channel, so that the sealed dispensing and drug delivery device forms a sealed environment; the connecting port further comprising an elastic body and a leak-proof ring, the first channel being connected to the first cavity, the second channel being connected to the second cavity, the leak-proof ring being airtightly fixed to one end of the first channel and the second channel; In which, when the sealed dispensing and delivery device is connected to a liquid medicine container, the at least one soft plug can be operably broken through, so that the first channel and the second channel are connected to each other through the liquid medicine container; when the operating part of the push-pull rod assembly is pulled by external force, and the piston is driven to move toward the first port of the injection tube through the rod body, the first area of ​​the first cavity becomes larger to draw a liquid medicine from the liquid medicine container through the first channel into the first area, and at the same time the second area becomes smaller, so that the air in the second area is discharged into the liquid medicine container through the second cavity and the second channel, so that the sealed dispensing and delivery device and the liquid medicine container form another sealed environment.

23. The sealed dispensing and drug delivery device according to claim 22, wherein: It includes a connector detachably connected to the connecting port, the connector including a first end and a second end facing away from each other, the first end including a first needle and a second needle arranged adjacent to each other in the same direction, the number of the soft plugs is two, when the first end of the connector is connected to the connecting port, a top concave surface of the first needle pushes against one of the two soft plugs and a top concave surface of the second needle pushes against the other of the two soft plugs, and the first needle is correspondingly connected to the first channel, and the second needle is correspondingly connected to the second channel, the second end of the connector is detachably connected to the liquid medicine container, and the second end is connected to the first needle of the first end.

24. The sealed dispensing and drug delivery device according to claim 23, wherein: When the first end of the connector is connected to the connecting port, a top concave surface of the first needle pushes against one of the two soft plugs and a top concave surface of the second needle pushes against the other of the two soft plugs, and the two soft plugs push the elastomer, so that the elastomer is compressed toward the second port of the withdrawal tube.

Images