Medical duplex booster

Abstract

The utility model discloses a medical duplex pusher, which belongs to the technical field of medical instruments and comprises a duplex shell, an injector tube body, a duplex push plate, a duplex connector, a reducing connector and a liquid mixing connector, two liquid pushing channels are arranged in the duplex shell, a mounting buckle is arranged at the end part of the duplex shell, and the injector tube body is arranged in the duplex shell. The injector tube body is inserted into the two liquid pushing channels, piston rods are connected into the injector tube body in a sliding mode, the duplex push plate is detachably connected to the ends of the two piston rods, the duplex connector is installed at the end of the duplex shell, and the variable-diameter connector is detachably installed in the duplex connector. One end of the reducing connector is connected with the liquid outlet end of the injector tube body, a hose is inserted into the other end of the reducing connector, the liquid mixing connector is detachably installed in the duplex connector, and the needle head is installed at the output end of the liquid mixing connector. By means of the detachable modular structure, the problems that a traditional duplex booster is difficult to machine, inconvenient to clean, high in maintenance cost and the like are solved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a medical dual-push-up device. Background Technology

[0002] In the medical field, a dual-drug delivery system is a device used to simultaneously deliver two drugs and mix them before use. It is widely used in clinical scenarios requiring precise proportioning or immediate mixing, such as anesthesia and contrast agent injection. Traditional dual-drug delivery systems typically employ a one-piece design, integrating the three-way valve module and the drug delivery tubing together. This is because plastic injection molding processes have extremely high requirements for demolding complex structures, flow channel design, and material shrinkage. Such structures often result in low yield rates due to high mold complexity and insufficient molding precision. To address this issue, manufacturers have introduced metal-encased tubing as an alternative, integrating the three-way valve module and drug delivery tubing into a single structure using metal materials.

[0003] However, these dual-tube boosters have some problems. On the one hand, the internal tubing and cavity of the integrated structure are difficult to clean thoroughly, and drug residues are easy to accumulate in the gaps or interfaces of the tubes, which can easily lead to drug residues or bacterial growth, increasing the risk of cross-infection and failing to meet the high hygiene standards of medical equipment. On the other hand, if any part of the three-way module or the drug delivery tubing is damaged, the entire device needs to be replaced, resulting in waste of resources and increased usage costs.

[0004] Therefore, how to provide a medical dual-propellant device that overcomes the shortcomings of existing technologies is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a medical dual-tube pusher to solve the problems in the prior art where the internal pipes and cavities of the integrated structure are difficult to clean thoroughly, drug residues easily accumulate in the gaps or interfaces of the pipes, and any damage to any component requires the replacement of the entire device, which leads to non-compliance with the hygiene requirements of medical equipment, waste of resources, and increased use costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a medical dual-tube pusher, comprising:

[0008] The double-shell housing has two internal liquid-pushing channels, and the ends of the double-shell housing are provided with mounting buckles.

[0009] The syringe tubes are arranged in pairs and are respectively inserted into the two liquid pushing channels. A piston rod is slidably connected inside the two syringe tubes.

[0010] A double push plate is detachably connected to the ends of the two piston rods;

[0011] A double connector is installed at the end of the double housing, and the double connector is engaged with a mounting clip.

[0012] The variable diameter connectors are arranged in pairs and are detachably installed inside the double connectors. One end of the variable diameter connector is connected to the liquid outlet end of the syringe tube, and the other end of the variable diameter connector is inserted into a flexible tube.

[0013] A mixing connector is detachably installed inside the dual connector. The input end of the mixing connector is connected to the two tubing respectively, and the output end of the mixing connector is equipped with a needle.

[0014] Furthermore, the dual connector includes:

[0015] The connector cover has a hollow structure;

[0016] The lower cover of the connector has a hollow structure and is snap-fitted to the upper cover of the connector.

[0017] The first snap-fit ​​half-groove is provided in four parts, with two parts in a group, respectively located on the inner side wall of the upper and lower covers of the connector near the double-shell housing. The variable diameter connector is snapped into the first snap-fit ​​half-groove.

[0018] The second snap-fit ​​half-groove is arranged in pairs and is respectively located on the inner side wall of the upper and lower caps of the connector near the needle. The mixing connector is snapped into the second snap-fit ​​half-groove.

[0019] Furthermore, the outer side walls of the upper and lower covers of the connector are respectively provided with snap-fit ​​grooves, and snap-fit ​​blocks are integrally formed inside the snap-fit ​​grooves, and the snap-fit ​​blocks are engaged with the mounting buckles.

[0020] Furthermore, the cross-section of the snap-fit ​​block is triangular.

[0021] Furthermore, a fixing pin is provided inside the upper cover of the connector, and a fixing slot is provided inside the lower cover of the connector, with the fixing pin and the fixing slot forming a snap-fit ​​connection.

[0022] Furthermore, a cross-shaped positioning post is provided on the inner wall of the upper cover of the connector, and a positioning tube that cooperates with the cross-shaped positioning post is provided on the bottom surface of the lower cover of the connector.

[0023] Furthermore, the outer walls of both of the liquid-pushing channels are provided with several observation slots for observing the liquid volume.

[0024] Furthermore, two connecting grooves are provided on the side wall of the double push plate, and a sliding groove is provided on the side wall of the connecting groove. The double push plate is engaged with the end of the piston rod through the connecting groove.

[0025] This utility model has the following advantages:

[0026] This invention achieves a modular design for the dual-unit pusher by incorporating a double-shell casing, double-push plate, double-connector, reducing connector, mixing connector, and tubing. This optimizes the cleaning and disinfection process, ensures medical safety, and features detachable components. The tubing, reducing connector, and mixing connector, which are prone to residue buildup, are fully exposed for easy rinsing and high-temperature sterilization, effectively preventing drug residue and bacterial growth, and meeting the high hygiene standards required for medical equipment. Furthermore, if any component is damaged, only the corresponding module needs to be replaced, eliminating the need for complete replacement and significantly reducing usage and maintenance costs.

[0027] Modular design overcomes processing limitations, avoids the high demands of injection molding processes on complex structures, reduces manufacturing costs, and significantly improves yield. The inclusion of first and second locking half-grooves ensures that the reducing connector and mixing connector are securely fixed while facilitating easier assembly and disassembly, improving efficiency and simplifying cleaning and maintenance. The use of fixing pins and slots further enhances the stability of the upper and lower connector covers during assembly and ease of disassembly. Attached Figure Description

[0028] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0029] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0030] Figure 1 A perspective view of the medical dual-tube pusher provided for this utility model;

[0031] Figure 2 Exploded view of the medical dual-tube booster provided by this utility model;

[0032] Figure 3 A cross-sectional view of the double connector provided by this utility model;

[0033] Figure 4 A perspective view of the connector cover provided by this utility model;

[0034] Figure 5 A perspective view of the connector lower cover provided by this utility model;

[0035] Figure 6 A perspective view of the reducing connector and the mixing connector provided by this utility model;

[0036] Figure 7 Provided by this utility model Figure 2 Enlarged view of the A-structure;

[0037] Figure 8 Provided by this utility model Figure 2 Enlarged view of the B-structure.

[0038] In the diagram: 1. Double-walled casing; 11. Liquid delivery channel; 111. Observation slot; 12. Mounting clip; 2. Syringe tube; 3. Piston rod; 4. Double-walled push plate; 41. Connecting groove; 42. Slide groove; 5. Double connector; 51. Connector top cover; 511. Fixing pin; 512. Cross-shaped positioning post; 52. Connector bottom cover; 521. Fixing slot; 522. Positioning tube; 53. First locking half groove; 54. Second locking half groove; 55. Locking groove; 56. Locking block; 6. Reducing connector; 7. Tube; 8. Mixing connector; 9. Needle. Detailed Implementation

[0039] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] Please refer to Figures 1-8 The present invention discloses a medical dual-tube pusher, which consists of six parts, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 6As shown, the device includes a double-shell housing 1, a syringe tube 2, a double-push plate 4, a double connector 5, a reducing connector 6, and a mixing connector 8. The double-shell housing 1 has two dispensing channels 11 inside, and a mounting buckle 12 is provided at the end of the double-shell housing 1. The syringe tubes 2 are arranged in pairs and inserted into the two dispensing channels 11 respectively. A piston rod 3 is slidably connected inside each of the two syringe tubes 2. The double-push plate 4 is detachably connected to the ends of the two piston rods 3. The double connector 5 is installed at the end of the double-shell housing 1 and engages with the mounting buckle 12. The reducing connector 6 is arranged in pairs and detachably installed inside the double connector 5. One end of the reducing connector 6 is connected to the dispensing end of the syringe tube 2, and the other end of the reducing connector 6 is connected to a flexible tube 7. The mixing connector 8 is detachably installed inside the double connector 5. The input end of the mixing connector 8 is connected to the two flexible tubes 7 respectively, and a needle 9 is installed at the output end of the mixing connector 8.

[0041] In this embodiment, the syringe body 2 and piston rod 3 constitute a syringe commonly used in the prior art. This invention, through the combination of a double-shell housing 1, a double-push plate 4, and a double-connector 5 with an existing syringe, forms a modular double-push booster. The specific shapes of the reducing connector 6 and the mixing connector 8 are as follows... Figure 6 As shown, the two ends of the reducing connector 6 have different inner diameters. The end with the larger inner diameter extends out of the double connector 5 and is inserted into the liquid outlet of the syringe tubing 2. The end with the smaller inner diameter is inside the double connector 5 and is connected to a flexible tube 7. The connection is sealed. The mixing connector 8 has two input ends and one output end. The two input ends are connected to two flexible tubes 7 respectively, forming a dual-channel structure. The connection is sealed. The output end has a dual-channel structure inside and is connected to the inside of both input ends. The output end extends out of the double connector 5 and is connected to a needle 9, forming an interference fit with the needle 9. The shape of the needle 9 is as follows: Figure 3 As shown, there is a cavity at the connection point between the needle 9 and the output end of the mixing connector 8, where the liquids in the two channels of the mixing connector 8 are mixed.

[0042] By incorporating a double-shell housing 1, a double-push plate 4, a double connector 5, a reducing connector 6, a mixing connector 8, and a hose 7, a modular design for the double-push booster is achieved. This optimizes the cleaning and disinfection process, ensures medical safety, and allows for the detachable design of components. Areas prone to residue buildup, such as the hose 7 (corresponding to the drug delivery tubing in existing technologies), the reducing connector 6, and the mixing connector 8 (corresponding to the tee module in existing technologies), are fully exposed for easy rinsing and high-temperature sterilization, effectively preventing drug residue and bacterial growth, and meeting the high hygiene standards required for medical equipment. Furthermore, if a component is damaged, only the corresponding module needs to be replaced, eliminating the need for complete replacement and significantly reducing usage and maintenance costs. The modular design overcomes processing limitations, avoids the high demands of injection molding processes on complex structures, reduces manufacturing costs, and significantly improves yield rates.

[0043] like Figure 4 , Figure 5 As shown, the double connector 5 includes an upper connector cover 51, a lower connector cover 52, a first snap-fit ​​half-groove 53, and a second snap-fit ​​half-groove 54. The upper connector cover 51 and the lower connector cover 52 are hollow structures. The lower connector cover 52 is snap-fitted to the upper connector cover 51. There are four first snap-fit ​​half-grooves 53, which are arranged in pairs and are respectively located on the inner sidewalls of the upper connector cover 51 and the lower connector cover 52 near the double-connector housing 1. The variable diameter connector 6 is snap-fitted into the first snap-fit ​​half-groove 53. The second snap-fit ​​half-grooves 54 are arranged in pairs and are respectively located on the inner sidewalls of the upper connector cover 51 and the lower connector cover 52 near the needle 9. The mixing connector 8 is snap-fitted into the second snap-fit ​​half-groove 54.

[0044] In this embodiment, the shape and position of the first snap-fit ​​half-groove 53 and the second snap-fit ​​half-groove 54 are as follows: Figure 4 , Figure 5 As shown, the upper cover 51 and lower cover 52 of the connector have through holes on their sidewalls near the double-layer outer shell 1, allowing the larger inner diameter end of the reducing connector 6 to pass through. A square locking block is formed in the middle of the outer sidewall of the reducing connector 6, which can simultaneously engage in the corresponding first locking half-groove 53 in the lower cover 52 and upper cover 51. The upper cover 51 and lower cover 52 of the connector have through holes on their sidewalls near the needle 9, allowing the mixing connector 8 to pass through. A square locking block is formed in the middle of the outer sidewall of the mixing connector 8, which can simultaneously engage in the corresponding second locking half-groove 54 in the lower cover 52 and upper cover 51. By setting the first locking half-groove 53 and the second locking half-groove 54, the reducing connector 6 and the mixing connector 8 are firmly fixed while assembly and disassembly are more convenient, improving assembly and disassembly efficiency and facilitating cleaning and maintenance.

[0045] like Figure 2 , Figure 7As shown, the outer walls of the connector upper cover 51 and connector lower cover 52 are respectively provided with snap-fit ​​grooves 55, and snap-fit ​​blocks 56 are integrally formed inside the snap-fit ​​grooves 55. The snap-fit ​​blocks 56 are engaged with the mounting buckles 12; preferably, the cross-section of the snap-fit ​​blocks 56 is triangular. In this embodiment, the shapes of the snap-fit ​​blocks 56 and the snap-fit ​​grooves 55 are as follows. Figure 7 As shown, there are two mounting clips 12 and two snap-fit ​​slots 55. After the upper cover 51 and the lower cover 52 of the connector are closed, they are inserted into the end of the double-unit housing 1. The mounting clips 12 will then enter the snap-fit ​​slots 55. During this process, the mounting clips 12 will contact the snap-fit ​​block 56. Under the action of the triangular inclined plane, the mounting clips 12 will undergo elastic deformation. After the mounting clips 12 are fully inserted into the snap-fit ​​slots 55, they will recover their elastic deformation and form a snap-fit ​​connection with the snap-fit ​​block 56. By setting the snap-fit ​​slots 55, the snap-fit ​​blocks 56, and the mounting clips 12, the assembly and disassembly of the upper cover 51 and the lower cover 52 of the connector are made more convenient, improving the efficiency of assembly and disassembly.

[0046] like Figure 4 , Figure 5 As shown, a fixing pin 511 is provided inside the upper cover 51 of the connector, and a fixing slot 521 is provided inside the lower cover 52 of the connector. The fixing pin 511 and the fixing slot 521 form a snap-fit ​​connection. In this embodiment, the shapes of the fixing pin 511 and the fixing slot 521 are as follows: Figure 4 , Figure 5 As shown, there are two fixing pins 511 and two fixing slots 521. The two fixing pins 511 are in opposite directions. By setting the fixing pins 511 and fixing slots 521, the stability of the connector upper cover 51 and the connector lower cover 52 during assembly and the convenience of disassembly are further enhanced.

[0047] like Figure 4 , Figure 5 As shown, a cross-shaped positioning post 512 is provided on the inner wall of the connector upper cover 51, and a positioning tube 522 that mates with the cross-shaped positioning post 512 is provided on the bottom surface of the connector lower cover 52. In this embodiment, the cross-shaped positioning post 512 can be inserted into the positioning tube 522. Through the cooperation between the cross-shaped positioning post 512 and the fixing pin 511, the assembly accuracy is ensured and damage caused by incorrect assembly is reduced.

[0048] like Figure 2 As shown, each of the two injection channels 11 has several observation slots 111 on its outer side wall for observing the volume of the injection solution. In this embodiment, there are three observation slots 111 on the outer side wall of each injection channel 11, arranged from three directions. By setting the observation slots 111 on the outer side of the injection channel 11, medical personnel can monitor the volume of the injection solution in real time to ensure accurate injection dosage.

[0049] like Figure 2 , Figure 8 As shown, the double push plate 4 has two connecting grooves 41 on its side wall, and a sliding groove 42 is provided on the side wall of the connecting groove 41. The double push plate 4 is engaged with the end of the piston rod 3 through the connecting grooves 41. In this embodiment, the positions of the connecting grooves 41 and the sliding grooves 42 are as follows: Figure 8 As shown, after the piston rod 3 enters the opening of the connecting groove 41, it can slide along the slide groove 42 into the depth of the connecting groove 41. By setting the connecting groove 41 and the slide groove 42, the double push plate 4 and the piston rod 3 can be quickly installed and disassembled.

[0050] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A medical dual-pole propulsion device, characterized in that, include: The double-shell (1) has two liquid-pushing channels (11) inside, and the ends of the double-shell (1) are provided with mounting buckles (12); The syringe tubes (2) are arranged in pairs and are respectively inserted into the two liquid pushing channels (11). The piston rods (3) are slidably connected inside the two syringe tubes (2). The double push plate (4) is detachably connected to the ends of the two piston rods (3); A double connector (5) is installed at the end of the double housing (1), and the double connector (5) is engaged with the mounting buckle (12); A variable diameter connector (6) is provided in pairs and is detachably installed inside the double connector (5). One end of the variable diameter connector (6) is connected to the liquid outlet end of the syringe tube (2), and the other end of the variable diameter connector (6) is connected to a flexible tube (7). The mixing connector (8) is detachably installed inside the double connector (5). The input end of the mixing connector (8) is connected to the two hoses (7) respectively, and the output end of the mixing connector (8) is equipped with a needle (9).

2. The medical dual-tube pusher as described in claim 1, characterized in that, The dual connector (5) includes: The connector cover (51) has a hollow structure; The lower cover (52) of the connector is a hollow structure, and the lower cover (52) of the connector is engaged with the upper cover (51) of the connector. The first snap-fit ​​half groove (53) is provided in four pairs, which are respectively provided on the inner side wall of the upper cover (51) and lower cover (52) of the connector near the double shell (1). The variable diameter connector (6) is snapped into the first snap-fit ​​half groove (53). The second snap-fit ​​half-groove (54) is arranged in pairs and is respectively arranged on the inner side wall of the upper cover (51) and lower cover (52) of the connector near the needle (9). The mixing connector (8) is snapped into the second snap-fit ​​half-groove (54).

3. The medical dual-tube pusher as described in claim 2, characterized in that, The outer side walls of the upper cover (51) and lower cover (52) of the connector are respectively provided with snap-fit ​​grooves (55), and snap-fit ​​blocks (56) are integrally formed inside the snap-fit ​​grooves (55). The snap-fit ​​blocks (56) are engaged with the mounting buckles (12).

4. The medical dual-tube pusher as described in claim 3, characterized in that, The cross-section of the snap-fit ​​block (56) is triangular.

5. The medical dual-tube pusher as described in claim 2, characterized in that, The upper cover (51) of the connector is provided with a fixing pin (511) inside, and the lower cover (52) of the connector is provided with a fixing slot (521) inside. The fixing pin (511) and the fixing slot (521) form a snap-fit ​​connection.

6. The medical dual-tube pusher as described in claim 5, characterized in that, A cross-shaped positioning post (512) is provided on the inner wall of the upper cover (51) of the connector, and a positioning tube (522) that cooperates with the cross-shaped positioning post (512) is provided on the bottom surface of the lower cover (52) of the connector.

7. The medical dual-tube pusher as described in claim 1, characterized in that, The outer walls of the two liquid-pushing channels (11) are provided with several observation slots (111) for observing the liquid volume.

8. The medical dual-tube pusher as described in claim 1, characterized in that, The double push plate (4) has two connecting grooves (41) on its side wall, and a sliding groove (42) is provided on the side wall of the connecting groove (41). The double push plate (4) is engaged with the end of the piston rod (3) through the connecting groove (41).

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