Syringe needle cylinder and syringe

Abstract

The utility model relates to an injector needle cylinder and an injector, the needle cylinder comprises a needle cylinder body, and an injection outlet is arranged at the end part of the needle cylinder section; the liquid storage device is characterized by further comprising two or more input ports, each input port is provided with a control valve so as to control a passage of the input port, and each input port is communicated with the liquid storage device through a pipeline; the control valve is used for controlling opening and closing of the control valve. The syringe has the advantages that the multiple medicine suction openings are adopted, it is possible that a single syringe can contain different dosage forms of contrast agents or mixed liquid of the contrast agents and normal saline or other needed medicine liquid according to different clinical requirements, all the requirements of clinical diagnosis for contrast agent enhancement are completely met, and meanwhile the working efficiency is improved. Continuous operation can be achieved, the operation complexity is reduced, the injection efficiency is improved, based on label information identification, the error rate is reduced, and medical accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a syringe barrel, a syringe and a control method thereof. Background Art

[0002] As an auxiliary device in the radiology diagnosis and treatment system, the syringe is gradually used in clinical practice with the development of large-scale imaging equipment such as CT, MR and DSA, as well as iodine ion and gadolinium ion contrast agents. The basic function of the syringe is to accurately inject a sufficient amount of contrast agent into the examination site at a set flow rate through percutaneous puncture into the blood vessels or through the original channels of the human body within a certain period of time, so as to achieve image enhancement of the target site and achieve the purpose of diagnosis. The syringe is used in conjunction with the syringe, which contains contrast agent or contrast agent diluent or other clinically required liquid medicine (hereinafter referred to as "syringe").

[0003] Existing syringes have two structures:

[0004] 1. Single opening, that is, the suction port and injection port of the syringe are the same opening. This structure is mostly used when a single patient uses a syringe at a time. When in use, the operator needs to manually replace the contrast agent or saline bottle, connect or disconnect the joints between the syringe, medicine bottle and pipeline multiple times, and repeatedly perform exhaust operations, which causes inconvenience in clinical use and waste of contrast agent.

[0005] At the same time, a single opening cannot achieve the dilution of contrast agent in the same container (here, in the pointer tube), and cannot fully meet the requirements of complex clinical diagnoses such as coronary angiography and ventriculography.

[0006] 2. Double openings, that is, the drug suction port and injection port of the syringe are two independent openings. This structure is mostly used for reusable syringes, that is, the syringe can be used for multiple drug suction and injection, which reduces the complexity of operation and improves efficiency. However, such a design cannot meet the requirements of different dosage forms of contrast agents for different clinical needs, nor can it achieve the dilution of contrast agents, and will still result in waste of contrast agents.

[0007] Therefore, the utility model proposes a syringe barrel, a syringe and a control method thereof for injecting contrast agent. Utility Model Content

[0008] The utility model provides a syringe barrel, a syringe and a control method thereof, so as to solve the problems in the prior art.

[0009] The technical problem solved by the utility model is achieved by the following technical solutions:

[0010] A syringe barrel, comprising:

[0011] The syringe body is provided with an injection liquid outlet at the end of the syringe section;

[0012] Two or more input ports, each of which is provided with a control valve to control the passage of the input port, and each of which is connected to a liquid storage device through a pipeline;

[0013] The control valve is connected to a control center module to control the opening and closing of the control valve.

[0014] As a preferred technical solution, the control center module includes:

[0015] An identification information module, used to identify tag information;

[0016] An information comparison module is used to compare the tag information obtained by the identification information module with the preset information of the control valve. If the two information are the same, the returned data is true, otherwise, the returned data is false;

[0017] The control module opens the corresponding control valve when the comparison information module returns true data; otherwise, the control valve remains closed.

[0018] As a preferred technical solution, the liquid stored in the liquid storage device includes contrast agent, physiological saline, water for injection or other required liquids.

[0019] As a preferred technical solution, the control valve is a one-way valve to prevent the corresponding liquid from flowing back.

[0020] As a preferred technical solution, the injection liquid outlet is provided with a one-way valve to prevent the injection liquid from flowing back.

[0021] As a preferred technical solution, the storage capacity of each of the liquid storage devices is 3ml-1000ml.

[0022] As a preferred technical solution, the concentrations of the liquids stored in the liquid storage device are different or the same.

[0023] As a preferred technical solution, the types of liquids stored in the liquid storage device are different or the same.

[0024] The utility model also provides a syringe, comprising the syringe barrel mentioned above.

[0025] The utility model also proposes a control method for a syringe, comprising the following steps:

[0026] S1 reads the label information of injection requirements;

[0027] S2 opens the control valve of the corresponding liquid passage according to the tag information;

[0028] S3 starts the piston push rod to extract the corresponding liquid;

[0029] S4: after the set amount of liquid is extracted, the control valve is closed;

[0030] S5 pushes the piston push rod to discharge the liquid out of the syringe.

[0031] As a preferred technical solution, in step S4, when two or more required liquids are extracted simultaneously, the liquids are mixed.

[0032] As a preferred technical solution, the mixing treatment method includes vibration, stirring, or rotation.

[0033] As a preferred technical solution, the label information in step S1 includes a control valve code.

[0034] As a preferred technical solution, it also includes S6 starting the piston push rod to extract physiological saline, clean the inner wall of the syringe, and then discharge it to complete the cleaning of the inner wall of the syringe to reduce the concentration error of the solution used next time.

[0035] As a preferred technical solution, the cleaning process of step S6 is performed at least once.

[0036] As a preferred technical solution, the number of the contrast agent passages is at least 2.

[0037] As a preferred technical solution, the control method of step S2 includes:

[0038] The tag information is compared with the preset information of the control valve. If the information of the two is the same, the corresponding control valve is opened; otherwise, the control valve remains closed.

[0039] As a preferred technical solution, the control method of step S2 includes: and further includes saving and recording the comparison result.

[0040] The beneficial effects of the utility model are:

[0041] (1) The use of multiple drug suction ports makes it possible for a single syringe to contain different dosage forms of contrast agents or a mixture of contrast agents and saline or other required liquid medicines according to different clinical needs, fully meeting all the needs of clinical diagnosis for contrast agent enhancement while improving work efficiency.

[0042] (2) It can realize continuous operation, reduce the complexity of operation, improve injection efficiency, and reduce the error rate based on label information recognition, thus avoiding medical accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0044] Figure 1 This is one of the main structural diagrams of a syringe barrel of the utility model;

[0045] Figure 2 This is one of the structural schematic diagrams of a syringe barrel of the utility model;

[0046] Figure 3 This is a schematic diagram of the lateral structure of a syringe barrel of the utility model;

[0047] Figure 4 This is one of the schematic diagrams of the top view of a syringe barrel of the utility model;

[0048] Figure 5 This is the second schematic diagram of the top view of a syringe barrel of the utility model;

[0049] Figure 6 This is a schematic diagram of the steps of a method for controlling a syringe according to the utility model. DETAILED DESCRIPTION

[0050] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0051] Example 1

[0052] Reference Figure 1-5 As shown, a syringe barrel comprises: a barrel body 1 , two or more input ports 3 , and a control valve 5 controlled by a control center module 4 .

[0053] Generally, the syringe body 1 needs to comply with the standards of relevant medical devices, and an injection liquid outlet 7 is provided at the end of the syringe body 1. The syringe body 1 is usually made of transparent or translucent materials so that the amount of liquid in the syringe can be visually observed. In addition, the syringe body 1 usually has the characteristics of being smooth, wear-resistant, and not easy to be scratched to ensure the safety and accuracy of the injection process.

[0054] The syringe body 1 in the utility model has two or more input ports 3, each of which is provided with a control valve 5 to control the passage of the input port 3, and each of the input ports 3 is connected to a liquid storage device 6 through a pipeline.

[0055] Among them, the control valve 5 is adopted as a mechanical control valve or an electronic control valve. When a mechanical control valve is adopted, the mechanical control valve has a simple structure, high reliability and low maintenance cost. However, for applications that require fine control or complex logic control, an electronic control valve is more suitable. In general, an electronic control valve is usually equipped with a microcontroller or a microprocessor, which can perform accurate flow and pressure control according to input electrical signals or other sensor signals. The electronic control valve has high sensitivity and response speed, and can realize real-time monitoring and adjustment of fluid characteristics. The control valve 5 in this embodiment adopts an electronic control valve.

[0056] Generally, the storage capacity of each liquid storage device is 3ml-1000ml. The liquid stored in the liquid storage device 6 includes contrast agent, physiological saline, water for injection or other required liquids.

[0057] In the design of the utility model, when a large-capacity design is adopted, continuous operation of multiple patients can be achieved, reducing the complexity of operation. When a small-capacity design is adopted, small-dose accurate injection can be satisfied.

[0058] Taking contrast agent as an example, further, the concentration of contrast agent stored in each liquid storage device 6 is the same. For example, when there are 2 or even 3 liquid storage devices 6, 2000ml-3000ml of contrast agent can be stored at one time, which can meet the needs of more patients.

[0059] Still taking the contrast agent as an example, further, the contrast agent concentration stored in each of the liquid storage devices 6 is different. For example, when there are two liquid storage devices 6, 500 ml of a 300 concentration (i.e., 300 mg / 100 ml) contrast agent and 500 ml of a 400 concentration (i.e., 400 mg / 100 ml) contrast agent of the same molecular formula can be stored simultaneously for alternating use.

[0060] Still taking contrast agent as an example, further, the type of contrast agent stored in each of the liquid storage devices 6 is the same. For example, when there are two liquid storage devices 6, 1000ml-1500ml of contrast agent can be stored at one time, or 500ml of 35% concentration contrast agent and 500ml of 55% concentration contrast agent can be stored at one time, which can meet the diverse needs of different patients.

[0061] Still taking contrast agent as an example, further, the types of contrast agents stored in each of the liquid storage devices 6 are different. For example, when there are two liquid storage devices 6, 500 ml of 300 concentration contrast agent A and 500 ml of 400 concentration contrast agent B can be stored for alternating use, which can meet the diverse needs of different patients. Of course, when different types of contrast agents need to be used, additional standardized processing steps are required, such as cleaning the syringe, etc.

[0062] Still taking contrast agent as an example, further, when contrast agent dilution is required, contrast agent and saline or water for injection can be simultaneously input into the syringe from the contrast agent storage device and the saline or water for injection storage device according to a set ratio to achieve a predetermined low-concentration contrast agent dilution solution to meet the needs of a specific scanning area or scanning procedure.

[0063] The control center module in the utility model is respectively connected with the control valve of the contrast agent input port, and controls the opening and closing of the control valve.

[0064] In order to more conveniently control the input of contrast agent, the control center module includes:

[0065] An identification information module, used to identify tag information;

[0066] An information comparison module is used to compare the tag information obtained by the identification information module with the preset information of the control valve. If the two information are the same, the returned data is true, otherwise, the returned data is false;

[0067] The control module opens the corresponding control valve when the comparison information module returns true data; otherwise, the control valve remains closed.

[0068] Generally, the control valve is a one-way valve to prevent the contrast agent from flowing back. Similarly, the injection liquid outlet is provided with a one-way valve to prevent the injection liquid from flowing back.

[0069] In order to achieve the purpose of diluting or flushing the inner wall of the syringe, refer to Figure 5 As shown, the syringe is also provided with a physiological saline inlet 8.

[0070] Specifically, when contrast agent A is to be extracted, the control center module controls and opens the control valve on the pipeline connected to the liquid storage device storing contrast agent A. For example, the identification information module identifies the label information, and compares the label information obtained by the identification information module with the preset information of the control valve. If the information of the two is the same, the control module opens the corresponding control valve, otherwise, the control valve remains closed.

[0071] After the set amount of the liquid medicine is extracted, the control valve is closed, and the piston push rod is pushed to discharge the contrast agent or the mixed liquid out of the syringe to complete the injection.

[0072] The utility model adopts multiple drug suction ports, making it possible for a single syringe to contain contrast agents of different dosage forms or a mixture of contrast agent and physiological saline or other required drug liquids according to different clinical needs, fully meeting all needs of clinical diagnosis for contrast agent enhancement and improving work efficiency.

[0073] Example 2

[0074] The utility model provides a syringe, comprising a syringe barrel as in embodiment 1.

[0075] Example 3

[0076] Reference Figure 6 As shown, the utility model also proposes a control method for a syringe, comprising the following steps:

[0077] S1 reads the label information of injection requirements;

[0078] S2 opens the control valve of the corresponding liquid passage according to the tag information;

[0079] S3 starts the piston push rod to extract the corresponding liquid;

[0080] S4: after the set amount of liquid is extracted, the control valve is closed;

[0081] S5 pushes the piston push rod to discharge the liquid out of the syringe.

[0082] The label information in the utility model includes a control valve code. The number of the contrast agent passages is at least 2.

[0083] In step S4 of the present invention, when two or more required liquids are extracted at the same time, the liquids are mixed. The mixing method includes vibration, stirring, or rotation. Repeated mixing of the liquids is more conducive to data imaging.

[0084] The specific steps of the present invention also include: S6 starts the piston push rod to extract physiological saline, cleans the inner wall of the syringe, and then discharges it to complete the cleaning of the inner wall of the syringe to reduce the concentration error of the contrast agent used next time. For example, the cleaning process of step S6 is at least one time.

[0085] The control method of step S2 in the utility model includes:

[0086] The tag information is compared with the preset information of the control valve. If the information of the two is the same, the corresponding control valve is opened; otherwise, the control valve remains closed.

[0087] Specifically, taking the extraction of contrast agent A as an example, the control method of the utility model is described again:

[0088] When the patient needs to be injected with contrast agent A, at least one contrast agent channel in the multi-channel injector of the utility model is connected with a contrast agent storage device storing contrast agent A, and a controllable control valve is provided on the contrast agent channel.

[0089] The label information of the injection requirement is read by the device, and the label information contains at least the basic information of the contrast agent and the control valve code. When the label information is compared with the preset information of the control valve, if the two information are the same, the corresponding control valve is opened, otherwise, the control valve remains closed. The above operation steps should also include saving and recording the comparison result.

[0090] After the control valve is opened, the piston push rod is started to extract the corresponding contrast agent, saline, water for injection or other required liquid medicine. After the set amount of the liquid medicine is extracted, the control valve is closed and the piston push rod is pushed to discharge the contrast agent or mixed liquid out of the syringe to complete the injection.

[0091] In order to facilitate later use and reduce the concentration error of the contrast agent used next time, after the injection is completed, the piston push rod can be started again to extract saline, clean the inner wall of the syringe, and then discharge it to complete the cleaning of the inner wall of the syringe.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0093] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0094] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0095] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A syringe barrel, comprising: A syringe body, wherein an injection liquid outlet is provided at the end of the syringe body; It is characterized by further comprising: Two or more input ports, each of which is provided with a control valve to control the passage to the input port, and each of which is connected to a liquid storage device through a pipeline; The control valve is connected to a control center module to control the opening and closing of the control valve.

2. A syringe barrel according to claim 1, characterized in that: The control center module includes: An identification information module, used to identify tag information; An information comparison module is used to compare the tag information obtained by the identification information module with the preset information of the control valve. If the two information are the same, the returned data is true, otherwise, the returned data is false; The control module opens the corresponding control valve when the comparison information module returns true data; otherwise, the control valve remains closed.

3. A syringe barrel according to claim 1, characterized in that: The liquid stored in the liquid storage device includes contrast agent, physiological saline, and water for injection.

4. A syringe barrel according to claim 1, characterized in that: The control valve is a one-way valve to prevent the corresponding liquid from flowing back.

5. A syringe barrel according to claim 1, characterized in that: The injection liquid outlet is provided with a one-way valve to prevent the injection liquid from flowing back.

6. A syringe barrel according to claim 1, characterized in that: The storage capacity of each of the liquid storage devices is 3ml-1000ml.

7. A syringe barrel according to claim 6, characterized in that: The concentrations of the liquids stored in the liquid storage devices are different or the same.

8. A syringe barrel according to claim 6, characterized in that: The liquids stored in the liquid storage devices are of different or same types.

9. A syringe, characterized in that: The syringe comprises: a syringe barrel as claimed in any one of claims 1 to 8.

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