Cardiovascular internal medicine contrast agent injection device

Abstract

The invention discloses a cardiovascular internal medicine contrast agent injection device in the technical field of injectors, which comprises a needle cylinder, a pressing device is arranged at the top of the needle cylinder, a first partition plate and a second partition plate are fixedly connected in the needle cylinder, and the first partition plate and the second partition plate sequentially divide the interior of the needle cylinder into a first chamber, a second chamber and a third chamber; a transmission assembly is arranged in the third cavity and comprises a rack, one end of the rack is fixedly connected with the pressing device, the rack is meshed with a gear, the middle of the gear is fixedly connected with a connecting rod, and one end of the connecting rod is rotationally connected with the inner wall of the needle cylinder. According to the injection device, a contrast agent is stirred and heated through the synergistic effect of the rack, the gear, the stirring blades and the heating ball, and the complexity degree of operation of the injection device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of syringes, in particular to a cardiovascular contrast agent injection device. Background Art

[0002] Contrast agents are chemicals injected into human tissues or organs to enhance imaging effects, and are mainly used to display blood vessels and body cavities. In cardiovascular medicine, contrast agents are one of the most commonly used drugs in interventional radiology operations and are of great significance for the diagnosis and treatment of diseases.

[0003] The contrast agent may become viscous after being left in the container for a long time, resulting in greater resistance to the piston during injection, making it difficult to control the contrast agent to enter the human body smoothly. Stirring can ensure that the contrast agent remains in a uniform state before injection, reducing the resistance during the injection process. Some contrast agents may precipitate crystals at low temperatures, which will affect the fluidity and injection effect of the contrast agent. Stirring can cause the crystals to dissolve again in the contrast agent, ensuring smooth injection.

[0004] For patients undergoing contrast examinations, injection of cold contrast media may cause discomfort. Heating the contrast media to near body temperature can reduce this discomfort, and heated contrast media can increase its absorption rate, thereby speeding up the contrast process and improving examination efficiency.

[0005] At present, when existing injection devices are used, contrast agents are heated and stirred mostly by an external heating device or by a switching component inside the syringe, which increases the complexity of the device and is not conducive to the operation of the injection device. Summary of the invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide a cardiovascular contrast agent injection device, which stirs and heats the contrast agent through the coordinated action of a rack gear, a stirring blade and a heating ball, thereby reducing the complexity of the injection device operation.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: A contrast agent injection device for cardiovascular medicine comprises a syringe, a presser is provided on the top of the syringe, a first partition plate and a second partition plate are fixedly connected in the syringe, the first partition plate and the second partition plate respectively divide the syringe into a first chamber, a second chamber and a third chamber, the first chamber and the second chamber are connected at the bottom, a needle is connected at the bottom of the first chamber, an injection assembly for injecting contrast agent is provided in the first chamber, the injection assembly is fixedly connected to the presser, a stirring assembly is provided in the second chamber, a heating assembly is provided on the stirring assembly, an energy supply assembly is provided in the third chamber, a baffle for sealing the second chamber and the third chamber is fixedly connected to the top of the second chamber and the third chamber, and a transmission assembly is also provided in the third chamber, the transmission assembly comprises a rack, one end of the rack is fixedly connected to the presser, a gear is meshed on the rack, a connecting rod is fixedly connected to the middle of the gear, one end of the connecting rod is rotatably connected to the inner wall of the syringe, and the other end of the connecting rod passes through the second partition plate and is fixedly connected to the stirring assembly.

[0008] The principle of the basic solution is: the rack is driven to reciprocate by the presser, the gear is driven to rotate by the rack, and the stirring component is driven to stir the contrast agent by the rotation of the gear.

[0009] The beneficial effects of the basic scheme are: the reciprocating motion of the rack by the presser causes the gear to rotate, which is beneficial to improving the stirring efficiency of the stirring assembly, and the gear is driven to rotate by the rack, which is beneficial for medical staff to complete the stirring of the contrast agent more easily.

[0010] Furthermore, the energy supply assembly includes a storage battery, and the storage battery is fixedly connected to the bottom wall of the third chamber.

[0011] The beneficial effects of the basic solution are: the storage battery is conducive to medical staff to repeatedly charge the battery, which is conducive to increasing the battery life

[0012] Furthermore, the injection assembly includes an injection rod, one end of which is fixedly connected to the presser, and the other end of the injection rod is fixedly connected to a piston, which is used to perform piston movement along the inner wall of the syringe and the side wall of the first partition plate.

[0013] The beneficial effect of the basic scheme is that the piston movement driven by the presser is conducive to the smooth extraction and injection of the contrast agent.

[0014] Furthermore, the stirring assembly includes a stirring shaft, which is fixedly connected to one end of the connecting rod, and a plurality of stirring blades are circumferentially arranged on the outer edge of the stirring shaft.

[0015] The beneficial effects of the basic scheme are: the stirring blade is conducive to stirring the contrast agent, and stirring can ensure that the components in the contrast agent are evenly mixed, thereby ensuring that the contrast agent can be evenly distributed in the target area during use, thereby improving the contrast effect.

[0016] Furthermore, the heating assembly includes a plurality of heating balls, each of which is fixedly connected to a spring, the other end of each of the springs is fixedly connected to a stirring blade, a controller is fixedly connected to the outer wall of the syringe, the controller is electrically connected to the heating balls, and the controller is electrically connected to a storage battery.

[0017] The beneficial effects of the basic solution are: the heating ball is conducive to heating the contrast agent, and heating the contrast agent can significantly increase its absorption rate in the human body, thereby speeding up the contrast examination process and improving the efficiency of the examination. This is because the heated contrast agent has enhanced fluidity and is easier to diffuse in blood vessels or tissue spaces, allowing the contrast agent to reach the target area faster and produce clear images.

[0018] When the contrast agent is not completely stirred, some areas of the contrast agent are relatively viscous due to the lower temperature. The contrast agent in the part that has been heated by the heating ball has a higher temperature and is relatively thin. The contrast agent in the more viscous part will hinder the elastic deformation of the spring, causing the spring to stay in the viscous part for a longer time. Therefore, the heating ball is beneficial for fully heating the contrast agent in the viscous part.

[0019] Furthermore, a temperature sensor is fixedly connected to the inner wall of the second chamber, and the temperature sensor is connected to the controller signal.

[0020] The beneficial effect of the basic solution is that the temperature sensor is helpful for real-time monitoring of the temperature of the contrast agent in the second chamber, which is helpful for medical staff to control the temperature of the contrast agent in the second chamber.

[0021] Furthermore, a first electric valve is fixedly connected to the connection point between the first chamber and the needle, and a second electric valve is fixedly connected to the connection point between the first chamber and the second chamber. Both the first electric valve and the second electric valve are connected to the controller signal, and both the first electric valve and the second electric valve are electrically connected to the storage battery.

[0022] The beneficial effects of the basic scheme are: the first electric valve is conducive to blocking the contrast agent from flowing out of the needle after the contrast agent is sucked into the first chamber, and the second electric valve is conducive to reducing the occurrence of contrast agent directly entering the second chamber through the second electric valve when the contrast agent is sucked into the first chamber.

[0023] Furthermore, the outer side of the syringe is covered with anti-slip material.

[0024] The beneficial effects of the basic solution are: the anti-slip material is conducive to increasing the friction between the syringe and the medical staff's hands, and is conducive to maintaining the stability of the syringe when the medical staff performs an injection.

[0025] Furthermore, the syringe is engraved with scale lines on the outside, and the scale lines are used to judge the volume of the contrast agent inhaled into the first chamber.

[0026] The beneficial effects of the basic scheme are: the graduation lines are helpful for medical staff to determine the volume of contrast agent to be injected according to the physical conditions of different patients, and are helpful to improve the imaging effect of the contrast agent.

[0027] Furthermore, the needle housing is provided with a protective sleeve for protecting the needle.

[0028] The beneficial effect of the basic solution is that the needle is protected by a protective cover after use. By protecting the needle from contamination by the external environment, the needle cover can also reduce the risk of cross infection caused by needle contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric view of the cardiovascular contrast agent injection device in an embodiment of the present invention.

[0030] Figure 2 It is a cross-sectional view of a cardiovascular contrast agent injection device in an embodiment of the present invention.

[0031] Figure 3 This is a diagram showing the internal structure of the third chamber of the cardiovascular contrast agent injection device in an embodiment of the present invention.

[0032] Figure 4 This is a structural diagram of the gears and stirring components of the cardiovascular contrast agent injection device in an embodiment of the present invention.

[0033] The figure marks in the drawings of the specification include: 1. syringe; 2. presser; 3. protective cover; 4. injection rod; 5. stirring shaft; 6. connecting rod; 7. gear; 8. rack; 9. second partition plate; 10. needle; 11. first partition plate; 12. piston; 13. spring; 14. heating ball; 15. temperature sensor; 16. storage battery; 17. baffle; 18. first electric valve; 19. second electric valve. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] Embodiment 1:

[0036] Basically as attached Figure 1-Figure 4As shown: A contrast agent injection device for cardiovascular medicine, including a syringe 1, a presser 2 is provided on the top of the syringe 1, the syringe 1 is bonded with a first partition plate 11 and a second partition plate 9 by an adhesive, the first partition plate 11 and the second partition plate 9 respectively divide the syringe 1 into a first chamber, a second chamber and a third chamber, the first chamber and the second chamber are connected at the bottom, the first chamber is connected at the bottom with a needle 10, an injection assembly for injecting contrast agent is provided in the first chamber, the injection assembly is fixedly connected to the presser 2 by bolts, the injection assembly includes an injection rod 4, one end of the injection rod 4 is bonded to the presser 2 by an adhesive, the other end of the injection rod 4 is bonded with a piston 12 by an adhesive, and the piston 12 is used to move along the inner wall of the syringe 1 and the side wall of the first partition plate 11.

[0037] The second chamber is provided with a stirring assembly, on which a heating assembly is provided, the stirring assembly includes a stirring shaft 5, the stirring shaft 5 is fixedly connected to one end of a connecting rod 6 by bolts, and a plurality of stirring blades are arranged circumferentially on the outer edge of the stirring shaft 5. The heating assembly includes a plurality of heating balls 14, each of which is fixedly connected to a spring 13 by bolts, and the other end of the spring 13 is fixedly connected to the stirring blade by bolts, and a controller is fixedly connected to the outer wall of the syringe 1 by bolts, and the controller is electrically connected to the heating ball 14, and the controller is electrically connected to the storage battery 16.

[0038] The third chamber is provided with an energy supply assembly, which includes a storage battery 16. The storage battery 16 is fixedly connected to the bottom wall of the third chamber by bolts.

[0039] The tops of the second chamber and the third chamber are fixedly connected by bolts with a baffle 17 for sealing the second chamber and the third chamber. A transmission assembly is also provided in the third chamber, and the transmission assembly includes a rack 8, one end of the rack 8 is bonded to the presser 2 by an adhesive, a gear 7 is meshed on the rack 8, and a connecting rod 6 is fixedly connected to the middle of the gear 7 by bolts, one end of the connecting rod 6 is rotatably connected to the inner wall of the syringe 1, and the other end of the connecting rod 6 passes through the second partition plate 9 and is fixedly connected to the stirring assembly by bolts.

[0040] A temperature sensor 15 is fixedly connected to the inner wall of the second chamber by bolts, and the temperature sensor 15 is connected to the controller signal.

[0041] The connection point between the first chamber and the needle 10 is fixedly connected with a first electric valve 18 by bolts, and the connection point between the first chamber and the second chamber is fixedly connected with a second electric valve 19 by bolts. Both the first electric valve 18 and the second electric valve 19 are connected to the controller signal, and both the first electric valve 18 and the second electric valve 19 are electrically connected to the storage battery 16.

[0042] The syringe 1 is engraved with graduation lines on its outside, and the graduation lines are used to judge the volume of the contrast agent inhaled into the first chamber. The needle 10 is outer-coated with a protective cover 3 for protecting the needle 10 .

[0043] The specific implementation process is as follows: first, take out the container containing the contrast agent, remove the protective cover 3, and supply power to the controller, the first electric valve 18, the second electric valve 19, the temperature sensor 15 and the heating ball 14 through the storage battery 16. The controller controls the first electric valve 18 to open and the second electric valve 19 to close, and then inserts the needle 10 into the contrast agent. The medical staff extracts an appropriate volume of contrast agent according to the scale line outside the syringe 1 based on the actual situation of the patient. After the contrast agent is extracted into the first chamber, the controller will control the first electric valve 18 to close, and then the controller will control the second electric valve 19 to open.

[0044] At this time, the medical staff can push the presser 2 by hand, and push the piston 12 through the presser 2 and the injection rod 4 to make the piston 12 move, and push the contrast agent sucked into the first chamber into the second chamber through the second electric valve 19. When the medical staff pushes the contrast agent into the second chamber, the medical staff can reverse the syringe 1 and then repeatedly push the presser 2.

[0045] When the medical staff pushes the presser 2, the presser 2 will drive the rack 8 to move toward the needle 10, and the movement of the rack 8 will drive the gear 7 to rotate, and the rotation of the gear 7 will drive the connecting rod 6 to rotate and then drive the stirring shaft 5 to rotate. After the stirring shaft 5 rotates, it will stir the contrast agent that enters the second chamber through the second electric valve 19. Stirring helps to keep the contrast agent evenly distributed during the development process, ensuring that the contrast agent can fully and evenly act on the film or imaging area. This helps to reduce imaging quality problems caused by uneven distribution of contrast agents, such as local overexposure or underexposure.

[0046] While stirring the contrast agent, the controller can also start the heating ball 14 to heat the contrast agent. When the contrast agent is not fully stirred, the contrast agent in the lower temperature part of the contrast agent is relatively viscous, and the contrast agent in the part heated by the heating ball is relatively thin. The spring 13 itself has elasticity. When the spring 13 passes through the more viscous part of the contrast agent, the contrast agent will produce a certain resistance to the spring 13, delaying the rotation speed of the spring 13 in the viscous part of the contrast agent. In the thin part with a higher temperature of the contrast agent, the resistance of the contrast agent to the spring 13 becomes smaller, which is conducive to the spring 13 quickly passing through the thin part of the contrast agent, thereby improving the heating efficiency of the heating ball 14 for the lower temperature part of the contrast agent. The temperature of the contrast agent in the second chamber can be continuously monitored by the temperature sensor 15, and the start and stop of the heating ball 14 controlled by the controller is conducive to better control of the temperature of the contrast agent in the second chamber.

[0047] After the contrast agent in the second chamber is stirred and heated, the second electric valve 19 can be opened through the controller, and the presser 2 can be pulled up to move the piston 12 in the direction of the presser 2. The negative pressure suction in the first chamber is used to suck the contrast agent in the second chamber back into the first chamber through the second electric valve 19. After the contrast agent is re-absorbed into the first chamber, the second electric valve 19 can be closed through the controller, and then the first electric valve 18 can be opened, and the presser 2 can be slowly pushed to expel the air in the first chamber. After the air is expelled, the contrast agent can be injected into the patient.

[0048] After the contrast agent injection is completed, the protective cover 3 can be put back on the needle 10. The protective cover 3 can reliably protect the needle 10 and reduce the contamination of the needle 10. The protective cover 3 can effectively isolate the contact between external pollutants and the needle 10 and reduce cross infection caused by contamination of the needle 10.

[0049] Embodiment 2:

[0050] The difference from the above embodiment is that the outer side of the syringe 1 is covered with anti-slip material.

[0051] The specific implementation process is as follows: when the medical staff holds the syringe 1 for injection, the anti-slip material is helpful to increase the friction between the medical staff's hand and the syringe 1, thereby improving the medical staff's control over the syringe 1.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A contrast agent injection device for cardiovascular medicine, characterized in that: The invention comprises a syringe (1), a presser (2) is provided at the top of the syringe (1), a first partition plate (11) and a second partition plate (9) are fixedly connected inside the syringe (1), the first partition plate (11) and the second partition plate (9) respectively divide the syringe (1) into a first chamber, a second chamber and a third chamber, the first chamber and the second chamber are connected at the bottom, a needle (10) is connected at the bottom of the first chamber, an injection assembly for injecting a contrast agent is provided in the first chamber, the injection assembly is fixedly connected to the presser (2), a stirring assembly is provided in the second chamber, and a stirring assembly is provided on the stirring assembly A heat component, an energy supply component is provided in the third chamber, a baffle (17) for sealing the second chamber and the third chamber is fixedly connected to the top of the second chamber and the third chamber, and a transmission component is also provided in the third chamber, the transmission component includes a rack (8), one end of the rack (8) is fixedly connected to the presser (2), a gear (7) is meshed on the rack (8), a connecting rod (6) is fixedly connected to the middle of the gear (7), one end of the connecting rod (6) is rotatably connected to the inner wall of the syringe (1), and the other end of the connecting rod (6) passes through the second partition plate (9) and is fixedly connected to the stirring component.

2. The cardiovascular contrast agent injection device according to claim 1, characterized in that: The energy supply component comprises a storage battery (16), and the storage battery (16) is fixedly connected to the bottom wall of the third chamber.

3. The cardiovascular contrast agent injection device according to claim 2, characterized in that: The injection assembly comprises an injection rod (4), one end of the injection rod (4) is fixedly connected to the presser (2), and the other end of the injection rod (4) is fixedly connected to a piston (12), and the piston (12) is used to move along the inner wall of the syringe (1) and the side wall of the first partition plate (11).

4. The cardiovascular contrast agent injection device according to claim 3, characterized in that: The stirring assembly comprises a stirring shaft (5), the stirring shaft (5) is fixedly connected to one end of a connecting rod (6), and a plurality of stirring blades are arranged circumferentially on the outer edge of the stirring shaft (5).

5. The cardiovascular contrast agent injection device according to claim 4, characterized in that: The heating assembly comprises a plurality of heating balls (14), each of the heating balls (14) being fixedly connected to a spring (13), the other end of each of the springs (13) being fixedly connected to a stirring blade, the outer wall of the syringe (1) being fixedly connected to a controller, the controller being electrically connected to the heating balls (14), and the controller being electrically connected to a storage battery (16).

6. The cardiovascular contrast agent injection device according to claim 5, characterized in that: A temperature sensor (15) is fixedly connected to the inner wall of the second chamber, and the temperature sensor (15) is connected to the controller signal.

7. The cardiovascular contrast agent injection device according to claim 6, characterized in that: A first electric valve (18) is fixedly connected to the connection point between the first chamber and the needle (10), and a second electric valve (19) is fixedly connected to the connection point between the first chamber and the second chamber. Both the first electric valve (18) and the second electric valve (19) are connected to the controller signal, and both the first electric valve (18) and the second electric valve (19) are electrically connected to the storage battery (16).

8. The cardiovascular contrast agent injection device according to claim 7, characterized in that: The outer side of the syringe (1) is covered with anti-slip material.

9. The cardiovascular contrast agent injection device according to claim 8, characterized in that: The syringe (1) is engraved with scale lines on its outside, and the scale lines are used to judge the volume of contrast medium inhaled into the first chamber.

10. The cardiovascular contrast agent injection device according to claim 9, characterized in that: The outer cover of the needle (10) is provided with a protective sleeve (3) for protecting the needle (10).

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