A dual barrel single pass device

Abstract

The present application relates to the technical field of medical devices, in particular to a double-barrel single-channel device, comprising a syringe main barrel, two injection cavities are formed in the syringe main barrel, medicine suction channels are arranged on the syringe main barrel for realizing the communication between the injection cavities and the outside, a medicine outlet channel is arranged between the two medicine suction channels, the medicine outlet channel is communicated with the two injection cavities through intermediate channels, a syringe piston is arranged in each injection cavity, the medicine suction channels corresponding to the two injection cavities are arranged on the syringe main barrel, then a medicine outlet channel is arranged to communicate the two injection cavities with each other, the on-off of each medicine suction channel and the medicine outlet channel is controlled, so that the whole is integrated, the operation is simple, and rapid mixing and output can be realized.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a dual-cylinder single-channel device. Background Technology

[0002] Traditional dual-barrel syringes have separate syringes, with saline and contrast agent injected separately and then combined into a single channel via a connecting tube. This process is complex, involves a large clinical workload, and cannot meet the daily patient examination volume. The low examination efficiency and the resulting patient anxiety due to waiting are all invisible pressures for clinical medical staff.

[0003] A double-barreled syringe, disclosed in CN211410485U, includes a syringe one and a syringe two, with the syringe one located on one side of the syringe two. This utility model discloses a double-barreled syringe, which includes a syringe one, a syringe two, a three-way switch one, a three-way switch two, a syringe inlet, and a syringe outlet.

[0004] A parallel Y-shaped tube for a dual-barrel high-pressure injector, disclosed in CN221154947U, includes a first injector, a second injector, and a mixer. The mixer includes a first connecting tube, a second connecting tube, and a mixing tube. The first connecting tube, the second connecting tube, and the mixing tube are in a Y-shaped structure. One end of the first connecting tube is connected to the outlet of the first injector, and the other end is connected to the mixing tube. One end of the second connecting tube is connected to the outlet of the second injector, and the other end is connected to the mixing tube.

[0005] Currently, dual-barrel injection systems connect to each other via connecting pipes during output, which is cumbersome and laborious to assemble, making it impossible to achieve integrated dual-channel injection. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] The purpose of this invention is to provide a dual-cylinder single-channel device in order to solve the above-mentioned problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] The present invention provides a dual-barrel single-channel device, including a syringe main barrel, wherein two parallel injection chambers are formed inside the syringe main barrel, and each injection chamber is provided with a drug suction channel for communicating with the outside. A drug discharge channel is provided between the two drug suction channels, and the drug discharge channel is connected to the two injection chambers through an intermediate channel. Each injection chamber is provided with a syringe piston.

[0011] Furthermore, it also includes a syringe holder structure and a digital display control panel. The syringe barrel and the syringe holder structure are detachably connected to each other. The syringe holder structure is provided with a push-drive assembly for driving the syringe piston to move in the injection chamber. The push-drive assembly and the syringe piston are detachably connected to each other through a snap-fit ​​structure.

[0012] Furthermore, each of the drug absorption channels is provided with an opening and closing structure, and a push ring switch control structure for opening and closing drive control is detachably connected between the two opening and closing structures. A spiral mixing structure for spiral mixing of the two liquids is provided between the drug outlet channel and the two intermediate channels.

[0013] Furthermore, the syringe holder structure has a mountain-shaped cross-section, and an embedded seat is fitted to the inner side wall of the syringe holder structure. The upper two sides of the embedded seat are formed with arc-shaped upturned edges. The end of the syringe holder structure is provided with an end positioning baffle for abutting and limiting the end of the syringe barrel. The lower side of the syringe holder structure is provided with a handle, and a switch control button is provided on the handle.

[0014] Furthermore, the injection drive assembly includes a second electric telescopic rod fixedly installed within the syringe holder structure. The push rod head of the second electric telescopic rod faces the side opposite to the end positioning baffle and is connected to an end plate. The end plate is provided with a motor corresponding to the two injection chambers. The output shaft end of the motor faces the corresponding injection chamber and is connected to one end of the injection rod. The other end of the injection rod is connected to the syringe piston through a snap-fit ​​structure. The output end of the digital display control panel is electrically connected to the input end of the motor.

[0015] Furthermore, the snap-fit ​​structure includes a butterfly-shaped retainer fixedly mounted on the syringe piston, and a butterfly-shaped retaining plate fixedly mounted on the outer side of the end of the injection rod. When the injection rod drives the butterfly-shaped retaining plate to rotate, the butterfly-shaped retaining plate can slide and separate from the butterfly-shaped retainer. An automatic pressure detection component is provided at the end of the injection rod.

[0016] Furthermore, the automatic pressure detection component includes an embedded hole inside the end of the injection rod, a pressure sensor is fixedly installed on the inner end face of the embedded hole, one end of the embedded hole is open and a pressure block is slidably installed at the opening, a spring is fixedly connected between the pressure sensor and the pressure block, and the output end of the pressure sensor is electrically connected to the input end of the digital display control panel.

[0017] Furthermore, the push ring switch control structure includes two brackets, the brackets having a U-shaped outline, the U-shaped openings of the two brackets being arranged opposite each other, and a sliding sleeve being slidably connected between the head ends of the two brackets. An end block for limiting the maximum distance sliding position is fixedly provided at the end of the bracket, and a first spring is fixedly connected between the two end blocks located in the same sliding sleeve. A shoulder is provided on the outer side of the middle part of the bracket.

[0018] Furthermore, the spiral mixing structure includes a mixing cylinder, on the inner sidewall of which a spiral rib is protruding. One end of the mixing cylinder is connected to the drug outlet channel, and the other end of the mixing cylinder is connected to two intermediate channels respectively.

[0019] Furthermore, the opening and closing structure includes an opening and closing plate slidably disposed at the drug suction channel. One side of the opening and closing plate is connected to one end of a sliding shaft. The other end of the sliding shaft slides through a sliding hole opened at a corresponding position on the main barrel of the syringe and slides to connect to a connecting hole opened at a corresponding position on the mixing cylinder. A second spring is fixedly connected between the inner end face of the connecting hole and the end of the sliding shaft. A support rod is fixedly disposed on the sliding shaft located between the sliding hole and the connecting hole. A C-shaped clamp is fixedly disposed on the support rod. The clamp and the support are detachably connected to each other.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The syringe barrel is equipped with drug suction channels corresponding to two injection chambers, and a drug dispensing channel connects the two injection chambers. By controlling the opening and closing of each drug suction channel and drug dispensing channel, the whole unit is integrated, which is simple to operate and can achieve rapid mixing output.

[0023] 2. The syringe holder structure and the injection drive assembly work together to facilitate drug aspiration and dispensing, making operation convenient. In addition, the push ring switch control structure and the opening and closing structure work together to easily control the opening and closing of the drug aspiration channel. Furthermore, the push ring switch control structure and the opening and closing structure are detachably connected to each other, thus enabling the push ring switch control structure to be recycled after disinfection.

[0024] 3. When the liquid in the two injection chambers is discharged from the drug outlet channel, the spiral mixing structure can play a role in thorough mixing.

[0025] 4. The snap-fit ​​structure enables automatic snap-fit ​​between the injection drive assembly and the syringe piston. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 This is the present invention. Figure 1 A schematic diagram of the right-side view structure;

[0029] Figure 3 This is the present invention. Figure 1 A schematic diagram of the three-dimensional structure in the first direction;

[0030] Figure 4 This is the present invention. Figure 1 A schematic diagram of the AA cross-sectional structure;

[0031] Figure 5 This is the present invention. Figure 4 A magnified schematic diagram of the structure at point C;

[0032] Figure 6 This is the present invention. Figure 4 A magnified schematic diagram of the structure at point D;

[0033] Figure 7 This is the present invention. Figure 4 A magnified schematic diagram of the structure at point E;

[0034] Figure 8 This is the present invention. Figure 2 A schematic diagram of the BB cross-sectional structure;

[0035] Figure 9 This is the present invention. Figure 1 A schematic diagram of the second-direction three-dimensional structure;

[0036] Figure 10 This is a schematic diagram of the butterfly-shaped card holder and the butterfly-shaped card plate in the engagement state of the present invention;

[0037] Figure 11 This is a schematic diagram of the pavement structure of the push ring switch control structure of the present invention.

[0038] The reference numerals in the attached drawings are explained as follows: 1. Syringe main barrel; 101. Dispensing channel; 102. Suction channel; 103. Strap; 104. Sealing plug; 105. Syringe piston; 106. Intermediate channel; 107. Injection chamber; 2. Syringe holder structure; 201. Embedded seat sleeve; 202. Curved edge; 203. End positioning baffle; 204. Handle; 205. Switch control button; 3. Push ring switch control structure; 301. First electric telescopic rod; 302. U-shaped locking plate; 303. Bracket; 304. Shoulder; 305. Sliding sleeve; 306. End block; 307. 1. Spring; 4. Injection drive assembly; 401. End plate; 402. Motor; 403. Injection rod; 404. Second electric telescopic rod; 5. Spiral mixing structure; 501. Mixing cylinder; 502. Spiral rib; 6. Snap-fit ​​structure; 601. Embedded hole; 602. Pressure sensor; 603. Spring; 604. Pressing block; 605. Butterfly-shaped bracket; 606. Butterfly-shaped clamping plate; 7. Opening and closing structure; 701. Sliding hole; 702. Sliding shaft; 703. Opening and closing plate; 704. Support rod; 705. Clamp; 706. Connecting hole; 707. Second spring; 8. Digital display control panel. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0040] See Figures 1-11 As shown, this invention provides a dual-barrel single-channel device, including a syringe main barrel 1. In practical applications, the syringe main barrel 1 is made of transparent material, which facilitates clinical medical personnel to observe the volume of the liquid in the syringe, so as to understand the real-time injection status. The syringe main barrel 1 has two parallel injection chambers 107. The syringe main barrel 1 is respectively provided with a suction channel 102 for communicating between the injection chambers 107 and the outside. A dispensing channel 101 is provided between the two suction channels 102, and the dispensing channel 101 is connected to the two injection chambers 107 through an intermediate channel 106. Each injection chamber 107 is provided with a syringe piston 105. In practical applications, one-way valves can be provided on both suction channels 102 and dispensing channels 101. The one-way valves on the two suction channels 102 are used for one-way liquid entry into the injection chambers 107, and the one-way valve on the dispensing channel 101 is used for one-way liquid discharge from the injection chambers 107.

[0041] The double-barrel single-channel device further includes a syringe holder structure 2 and a digital display control panel 8. The syringe barrel 1 and the syringe holder structure 2 are detachably connected to each other. The syringe holder structure 2 is provided with a pushing drive assembly 4 for driving the syringe piston 105 to move within the injection chamber 107. The pushing drive assembly 4 and the syringe piston 105 are detachably connected to each other through a clamping structure 6.

[0042] Each medicine-sucking channel 102 is provided with an opening and closing structure 7. A push-ring switch control structure 3 for controlling the opening and closing drive thereof is detachably connected between the two opening and closing structures 7. A spiral mixing structure 5 for spirally mixing the two liquids is provided between the medicine-discharging channel 101 and the two intermediate channels 106.

[0043] See the attached Figure 1 and Figure 3 As shown in the drawings, the cross-sectional shape of the syringe holder structure 2 is mountain-shaped. An embedded seat sleeve 201 is fitted to the inner side wall of the syringe holder structure 2. Arc-shaped flanges 202 are formed on both sides of the upper part of the embedded seat sleeve 201. An end positioning baffle 203 for abutting and limiting the end of the syringe barrel 1 is provided at the end of the syringe holder structure 2. A grip 204 is provided on the lower side of the syringe holder structure 2, and a switch control button 205 is provided on the grip 204.

[0044] See the attached Figure 3 、 Figure 4 and Figure 8 As shown in the drawings, the pushing drive assembly 4 includes a second electric telescopic rod 404 fixedly arranged within the syringe holder structure 2. The head end of the push rod of the second electric telescopic rod 404 faces away from the end positioning baffle 203 and is connected with an end plate 401. Motors 402 corresponding to the two injection chambers 107 are provided on the end plate 401. The output shaft end of the motor 402 faces the corresponding injection chamber 107 and is connected with one end of a pushing rod 403. The other end of the pushing rod 403 is connected with the syringe piston 105 through the clamping structure 6. The output end of the digital display control panel 8 is electrically connected to the input end of the motor 402. Through the above specific structural design, the pushing drive assembly 4 is used for simultaneously sucking equal amounts of liquid or pushing equal amounts of liquid in the two injection chambers 107. When sucking or pushing liquids in different proportions, the manual pushing rod method can be adopted, or the two pushing rods 403 can be respectively provided with third electric telescopic rods to independently suck or push each injection chamber 107.

[0045] See the attached Figure 4 、 Figure 5 and Figure 10As shown, the snap-fit ​​structure 6 includes a butterfly-shaped retainer 605 fixedly mounted on the syringe piston 105, and a butterfly-shaped retaining plate 606 fixedly mounted on the outer side of the end of the injection rod 403. When the injection rod 403 drives the butterfly-shaped retaining plate 606 to rotate, the butterfly-shaped retaining plate 606 can slide and separate from the butterfly-shaped retainer 605. In practical applications, the butterfly-shaped retainer 605 has a slot for the butterfly-shaped retaining plate 606 to screw in or out. The end of the injection rod 403 is provided with an automatic pressure detection component. The automatic pressure detection component includes an embedded hole 601 opened inside the end of the injection rod 403. A pressure sensor 602 is fixedly mounted on the inner end face of the embedded hole 601. One end of the embedded hole 601 is open, and a pressure block 604 is slidably mounted at the opening. A spring 603 is fixedly connected between the pressure sensor 602 and the pressure block 604. The output end of the pressure sensor 602 is electrically connected to the input end of the digital display control panel 8.

[0046] The entire push-ring switch control structure 3 is rectangular in shape. It includes two brackets 303, each with a U-shaped outline. The U-shaped openings of the two brackets 303 are positioned opposite each other. Sliding sleeves 305 are slidably connected between the head ends of each bracket 303. End blocks 306 are fixedly mounted at the ends of each bracket 303 to limit the maximum sliding position. A first spring 307 is fixedly connected between the two end blocks 306 located within the same sliding sleeve 305. A shoulder 304 protrudes from the outer side of the middle portion of each bracket 303. In practical applications, the shoulder 304 limits and fixes the push-ring switch control structure 3 in the vertical direction when connected to the opening / closing structure 7.

[0047] See instruction manual attached Figure 4 , Figure 6 and Figure 7 As shown, the spiral mixing structure 5 includes a mixing cylinder 501, on the inner wall of which a spiral rib 502 is protruding. One end of the mixing cylinder 501 is connected to the drug outlet channel 101, and the other end is connected to two intermediate channels 106. When the liquid in the two injection chambers 107 is discharged from the drug outlet channel 101, the spiral mixing structure 5 can achieve thorough mixing.

[0048] The opening and closing structure 7 includes an opening and closing plate 703 slidably disposed at the drug suction channel 102. One side of the opening and closing plate 703 is connected to one end of a sliding shaft 702. The other end of the sliding shaft 702 slides through a sliding hole 701 opened at a corresponding position on the syringe main barrel 1 and slides to be connected to a connecting hole 706 opened at a corresponding position on the mixing cylinder 501. A second spring 707 is fixedly connected between the inner end face of the connecting hole 706 and the end of the sliding shaft 702. A support rod 704 is fixedly disposed on the sliding shaft 702 located between the sliding hole 701 and the connecting hole 706. A C-shaped clamp 705 is fixedly disposed on the support rod 704. The clamp 705 and the bracket 303 are detachably connected to each other. Under the elastic force of the second spring 707, the opening and closing plate 703 can close the drug suction channel 102. Under the drive control of the push ring switch control structure 3 on the opening and closing structure 7, the opening and closing plate 703 can open the drug suction channel 102. Specifically, the push rod of the first electric telescopic rod 301 extends to drive the U-shaped card plate 302 to move closer to the sliding sleeve 305 located below, and drive the sliding shaft 702 to slide towards the connecting hole 706, thereby compressing the second spring 707. At this time, the two brackets 303 are close to each other, and the two end blocks 306 compress the first spring 307. When the push rod of the first electric telescopic rod 301 retracts, the second spring 707 resets the opening and closing plate 703, and the first spring 307 resets the two brackets 303.

[0049] Working principle and technical effects of the present invention:

[0050] During use, the second electric telescopic rod 404 of the injection drive assembly 4 reaches its maximum stroke, preventing the injection rod 403 from obstructing the installation of the syringe main barrel 1 on the syringe holder structure 2. The syringe main barrel 1 is then inserted into the syringe holder structure 2, and the position of the syringe main barrel 1 on the syringe holder structure 2 is secured by the embedded seat sleeve 201 and the arc-shaped raised edge 202. The open end of the syringe main barrel 1 faces the end plate 401 of the injection drive assembly 4, and the closed end of the syringe main barrel 1 faces the push ring opening. When the control structure 3 is closed, the closed end of the syringe barrel 1 and the end positioning baffle 203 are positioned and abutted against each other, the bracket 303 of the push ring switch control structure 3 is inserted into the clamp 705, and the shoulder 304 is used to fix the position of the bracket 303 in the clamp 705. At this time, the U-shaped clamping plate 302 and the lower sliding sleeve 305 are positioned in the horizontal direction, that is, when the push rod of the first electric telescopic rod 301 is extended, the lower sliding sleeve 305 can be inserted into the U-shaped groove of the U-shaped clamping plate 302.

[0051] The push rod of the second electric telescopic rod 404 retracts, thereby driving the injection rod 403 to extend into the injection chamber 107. During the extension process, the motor 402 drives the injection rod 403 to rotate. When the pressure block 604 is pushed into the inner hole 601 by the syringe piston 105, the spring 603 is compressed and the pressure sensor 602 will detect the electrical signal and transmit it to the digital display control panel 8. The digital display control panel 8 continues to control the output shaft of the motor 402 to rotate, so that the injection rod 403 rotates ninety degrees, thereby realizing the mutual engagement of the butterfly-shaped card holder 605 and the butterfly-shaped card plate 606. When the butterfly-shaped card holder 605 and the butterfly-shaped card plate 606 are separated, the push rod of the second electric telescopic rod 404 extends, and the digital display control panel 8 controls the output shaft of the motor 402 to drive the injection rod 403 to rotate ninety degrees.

[0052] When the opening and closing structure 7 opens the drug suction channel 102, two different liquid drugs can be drawn in through the drug suction channels 102 on both sides of the syringe barrel 1. After being mixed by the spiral mixing structure 5, the drugs are pushed out through the dispensing channel 101. In practical applications, a sealing plug 104 is detachably connected to each of the two drug suction channels 102 and one dispensing channel 101. Each sealing plug 104 is connected to the syringe barrel 1 by a strap 103.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual barrel, single pass device, characterized by: The syringe includes a main barrel, which has two parallel injection chambers. The main barrel is provided with a drug suction channel for communicating with the outside of the injection chambers. A drug discharge channel is provided between the two drug suction channels. The drug discharge channel is connected to the two injection chambers through an intermediate channel. Each injection chamber is provided with a syringe piston. It also includes a syringe holder structure and a digital display control panel. The syringe barrel and the syringe holder structure are detachably connected to each other. The syringe holder structure is provided with a push-drive component for driving the syringe piston to move in the injection chamber. The push-drive component and the syringe piston are detachably connected to each other through a snap-fit ​​structure. Each of the drug absorption channels is provided with an opening and closing structure, and a push ring switch control structure for opening and closing drive control is detachably connected between the two opening and closing structures. A spiral mixing structure for spiral mixing of the two liquids is provided between the drug outlet channel and the two intermediate channels. The injection drive assembly includes a second electric telescopic rod fixedly installed in the syringe holder structure. The push rod head of the second electric telescopic rod faces the side opposite to the end positioning baffle and is connected to an end plate. The end plate is provided with a motor corresponding to the two injection chambers. The output shaft end of the motor faces the corresponding injection chamber and is connected to one end of the injection rod. The other end of the injection rod is connected to the syringe piston through a snap-fit ​​structure. The snap-fit ​​structure includes a butterfly-shaped retainer fixedly mounted on the syringe piston, and a butterfly-shaped retaining plate fixedly mounted on the outer side of the end of the injection rod. When the injection rod drives the butterfly-shaped retaining plate to rotate, the butterfly-shaped retaining plate can slide and separate from the butterfly-shaped retainer. An automatic pressure detection component is provided at the end of the injection rod. The automatic pressure detection component includes an embedded hole inside the end of the injection rod, a pressure sensor is fixedly installed on the inner end face of the embedded hole, one end of the embedded hole is open and a pressure block is slidably installed at the opening, and a spring is fixedly connected between the pressure sensor and the pressure block. The push ring switch control structure includes two brackets, the brackets are U-shaped, the U-shaped openings of the two brackets are opposite to each other, the head ends of the two brackets are slidably connected to each other, the end of the bracket is fixedly provided with an end block for limiting the maximum distance sliding position, the two end blocks located in the same sliding sleeve are fixedly connected to each other with a first spring, and the middle outer side of the bracket is provided with a shoulder. The spiral mixing structure includes a mixing cylinder with spiral ribs protruding from its inner wall. One end of the mixing cylinder is connected to the drug outlet channel, and the other end of the mixing cylinder is connected to two intermediate channels. The opening and closing structure includes an opening and closing plate slidably disposed at the drug suction channel. One side of the opening and closing plate is connected to one end of a sliding shaft. The other end of the sliding shaft slides through a sliding hole opened at a corresponding position on the main barrel of the syringe and slides to connect to a connecting hole opened at a corresponding position on the mixing cylinder. A second spring is fixedly connected between the inner end face of the connecting hole and the end of the sliding shaft. A support rod is fixedly disposed on the sliding shaft located between the sliding hole and the connecting hole. A C-shaped clamp is fixedly disposed on the support rod. The clamp and the support are detachably connected to each other.

2. A dual barrel, single pass device according to claim 1, wherein: The syringe holder structure has a mountain-shaped cross-section. An embedded seat is fitted to the inner side wall of the syringe holder structure. The upper two sides of the embedded seat are formed with arc-shaped curved edges. An end positioning baffle for abutting and limiting the end of the syringe barrel is provided at the end of the syringe holder structure. A handle is provided on the lower side of the syringe holder structure, and a switch control button is provided on the handle.

3. A dual barrel, single pass device according to claim 1, wherein: The output terminal of the digital display control panel is electrically connected to the input terminal of the motor.

4. A dual barrel, single pass device according to claim 1, wherein: The output of the pressure sensor is electrically connected to the input of the digital display control panel.

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