Magnetic resonance high-pressure injector connecting pipe

Abstract

The utility model discloses a magnetic resonance high-pressure injector connecting pipe, which belongs to the technical field of medical equipment and comprises a connecting pipe, an injector I and an injector II, the injector I and the injector II are both communicated with the connecting pipe, and the connecting pipe comprises an injection pipe I, an injection pipe II and an injection pipe III; a liquid guide pipe is arranged between the injection pipe I and the injection pipe III; and the injection tube II is fixedly connected with the liquid guide tube. Under the action of the liquid guide tube, the second injection tube, the first injection tube and the third injection tube are in a non-communicated state, a contrast agent cannot flow back into the second injection tube, and waste of the contrast agent is avoided; when cleaning is needed, the second injection tube is communicated with the third injection tube, normal saline can effectively clean the third injection tube in contact with the contrast agent in the whole connecting tube, and examination failure and waste of the contrast agent are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a magnetic resonance high-pressure syringe connecting tube. Background Art

[0002] Magnetic resonance imaging is a type of imaging examination method that is commonly used in clinical practice. Its principle is to use strong magnetic fields and harmless radio waves to generate detailed images of human tissues and organs. Magnetic resonance imaging can provide high-resolution cross-sectional images and has a good display effect on structures such as soft tissues, bones, and blood vessels. The patient needs to lie on a special examination bed and be pushed into the magnetic field of the magnetic resonance imaging device. In some cases, the doctor will need to use contrast agents to enhance the clarity of the image, which is then scanned by the magnetic resonance imaging device.

[0003] Contrast agents are usually injected intravenously into human tissues or organs. These products have a higher or lower density than the surrounding tissues, creating a contrast that is displayed by the MRI machine. Figure 4 , injection tube 1, injection tube 2 and injection tube 3 are always in a connected state. When injecting contrast agent, the contrast agent in injection tube 1 is injected through injection tube 1 and injection tube 3. When using normal saline, it is injected into injection tube 3 through injection tube 2. When different contrast agents are needed, the steps of injecting contrast agent, washing with normal saline and injecting contrast agent again are followed. The connecting tube is set into such a structure so that the pipeline can be cleaned with normal saline at any time, so that the operator can quickly change the contrast agent to be injected. There are many types of contrast agents. The reason why the pipeline needs to be cleaned when changing contrast agents is that when different types of contrast agents are used, the contrast agent remaining in the main injection tube and the newly injected contrast agent will be mixed, which will affect the quality of imaging. These different types of contrast agents may also react with each other, causing the examination to fail, which not only requires re-examination, but also wastes contrast agents.

[0004] However, as can be seen from the above, in fact, normal saline can only clean part of injection tube three, while injection tube one cannot actually be effectively cleaned by normal saline. The contrast agent remaining in it will still cause waste, and it may still react with other contrast agents, causing the failure of the examination.

[0005] Therefore, we propose a magnetic resonance high-pressure injector connecting tube to solve the above-mentioned problems.

[0006] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0007] The utility model aims to provide a magnetic resonance high-pressure injector connecting tube to solve the problems in the current market raised by the above background technology.

[0008] To achieve the above object, the utility model provides a magnetic resonance high-pressure syringe connecting tube, comprising a connecting tube, a syringe 1 and a syringe 2, wherein the syringe 1 and the syringe 2 are both connected to the connecting tube, and the connecting tube comprises an injection tube 1, an injection tube 2 and an injection tube 3;

[0009] A liquid guide tube is provided between the injection tube 1 and the injection tube 3;

[0010] The second injection tube is fixedly connected to the catheter.

[0011] Preferably, the liquid guiding tube comprises a tube body and a limit block arranged in the tube body;

[0012] The limiting block is provided with a liquid inlet channel, and the shape of the liquid inlet channel is arc-shaped.

[0013] Preferably, the angle between the catheter and the injection tube 3 is less than ninety degrees.

[0014] Preferably, the limit block includes a piston and a sealing gasket arranged on the side surface of the piston, the sealing gasket is provided with an opening, one end of the liquid inlet channel is arranged on the same side as the second injection tube, and the other end is arranged at the opening of the sealing gasket.

[0015] Preferably, a block is further provided at the connection between the tube body and the injection tube.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model installs the liquid guide tube at one end of the connecting tube, that is, at one end of the injection tube, so that the connection point between the second injection tube and the first injection tube is located at the end, and the needle of the first syringe is inserted into the liquid guide tube, so as to prevent the first injection tube from contacting with the contrast agent and being unable to be effectively cleaned. At the same time, under the action of the liquid guide tube, the second injection tube is not connected with the first injection tube and the third injection tube, and the contrast agent will not flow back into the second injection tube, so as to avoid the waste of the contrast agent. When cleaning is needed, the second injection tube is connected with the third injection tube, and the physiological saline can effectively clean the third injection tube in contact with the contrast agent in the entire connecting tube, so as to avoid the failure of the examination and the waste of the contrast agent.

[0018] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the liquid guiding tube of the utility model;

[0021] Figure 3 This is a position relationship diagram of the limit block and the liquid inlet channel of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the connecting pipe in the prior art.

[0023] In the figure: 1, connecting tube; 2, syringe 1; 3, syringe 2; 4, catheter;

[0024] 101, injection tube one; 102, injection tube two; 103, injection tube three;

[0025] 401, tube body; 402, limit block; 403, liquid inlet channel; 404, clamping block;

[0026] 4021. Piston. 4022. Sealing gasket. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. It should be pointed out that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size, and any size is only exemplary and not restrictive.

[0028] See also Figure 1-Figure 3A magnetic resonance high-pressure syringe connecting tube, comprising: a connecting tube 1, a syringe 1 2, a syringe 2 3 and a liquid guide tube 4, wherein the connecting tube 1 comprises an injection tube 101, an injection tube 2 102 and an injection tube 3 103, wherein the injection tube 101 and the injection tube 3 103 are fixedly connected, and the injection tube 101 and the injection tube 3 103 are respectively connected to the liquid guide tube 4, wherein the liquid guide tube 4 is a cylindrical structure, the injection tube 101 is connected to a bottom surface of the liquid guide tube 4, and the injection tube 3 103 is connected to a side surface of the liquid guide tube 4, and the other bottom surface of the liquid guide tube 4 is connected to the injection tube The second and third injection tubes 102 are connected, so that the guide tube 4 and the injection tube 3 103 have an angle less than ninety degrees; the guide tube 4 includes a cylindrical tube body 401, a cylindrical stop block 402 and a clamping block 404 fixed in the tube body, and the clamping block 404 is close to the injection tube 1 101. The stop block 402 is provided with an arc-shaped liquid inlet channel 403. When no saline is injected into the injection tube 3 103, the stop block 402 slides to the bottom of the tube body 401 under the action of gravity. At this time, the liquid inlet channel 403 is in a closed state. When the injection tube 103 is injected with saline, the stop block 402 slides to the bottom of the tube body 401 under the action of gravity. At this time, the liquid inlet channel 403 is in a closed state. When contrast agent is injected into the injection tube 102, the limit block 402 can block the injection tube 102 to prevent the contrast agent from entering the injection tube 102. The limit block 402 includes a piston 4021 and a sealing gasket 4022. The sealing gasket 4022 is a common component for sealing in the prior art and is made of a material such as rubber. Under the action of the sealing gasket 4022, the limit block 402 and the tube body 401 cooperate with each other, and there is a certain pressure between them to ensure the sealing effect, and the limit block 402 can slide under a small thrust. One end of the liquid inlet channel 403 is located at the piston At one bottom surface on 4021, the other end is located at the side of the piston 4021 and close to the injection tube three 103. When injecting normal saline, it is injected into the injection tube two 102 through the syringe two 3. Under the push of the normal saline, the limit block 402 slides to the side close to the injection tube one 101, and the liquid inlet channel 403 is connected with the injection tube two 102 and the injection tube three 103 respectively, so that the normal saline can enter the injection tube three 103. An opening is opened on the sealing gasket 4022, and the position of the opening is located at the same place as the end of the liquid inlet channel 403.

[0029] Working principle of this embodiment: when in use, the needle of syringe 2 filled with contrast agent is inserted from injection tube 101 into the catheter 4. At this time, the limit block 402 in the catheter 4 is at the lowest position and blocks the injection tube 102. After the injection of contrast agent is completed, when the connecting tube 1 needs to be cleaned, the operator directly pushes syringe 2 3 filled with saline solution. The saline solution in syringe 2 3 enters the injection tube 102 with a certain thrust, pushing the limit block 402 to slide to the side close to the injection tube 101. At this time, one end of the liquid inlet channel 403 is connected to the injection tube 102, and the other end is connected to the injection tube 3 103. The saline solution enters the injection tube 3 103 for cleaning. After completion, stop the injection, the limit block 402 slides off, and when it is necessary to inject another contrast agent, directly insert the needle of syringe 2 into the injection tube 3 103 and inject it.

[0030] The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0035] In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic resonance high-pressure syringe connecting tube, comprising a connecting tube (1), a syringe 1 (2) and a syringe 2 (3), wherein the syringe 1 (2) and the syringe 2 (3) are both connected to the connecting tube (1), characterized in that: The connecting tube (1) comprises an injection tube 1 (101), an injection tube 2 (102) and an injection tube 3 (103); A liquid guide tube (4) is provided between the injection tube 1 (101) and the injection tube 3 (103); The second injection tube (102) is fixedly connected to the liquid guiding tube (4); The liquid guiding tube (4) comprises a tube body (401) and a limiting block (402) arranged in the tube body (401); The limiting block (402) is provided with a liquid inlet channel (403), and the liquid inlet channel (403) is in an arc shape.

2. A magnetic resonance high-pressure injector connecting tube according to claim 1, characterized in that: The angle between the liquid guiding tube (4) and the injection tube 3 (103) is less than ninety degrees.

3. A magnetic resonance high-pressure injector connecting tube according to claim 1, characterized in that: The limit block (402) includes a piston (4021) and a sealing gasket (4022) arranged on the side surface of the piston (4021), and the sealing gasket (4022) is provided with an opening. One end of the liquid inlet channel (403) is arranged on the same side as the injection tube 2 (102), and the other end is arranged at the opening of the sealing gasket (4022).

4. A magnetic resonance high-pressure injector connecting tube according to claim 1, characterized in that: A clamping block (404) is also provided at the connection between the tube body (401) and the injection tube 1 (101).

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