Cardiocentesis liquid extractor for department of cardiology

Abstract

The invention provides a pericardium puncture aspirator for the department of cardiology, and belongs to the technical field of medical instruments. Comprising a chest side plate and an injector, one end of the injector is fixedly connected with a liquid extraction pipe, the end, away from the injector, of the liquid extraction pipe is fixedly connected with a puncture needle, the puncture needle and the liquid extraction pipe are fixed through a connector, and a pipe clamp is installed on the outer wall of the liquid extraction pipe; and the positioning assembly is used for assisting medical staff in puncturing and sucking the pericardial effusion of the patient, and the positioning assembly is connected with the injector and the chest side plate. By arranging the positioning assembly, medical staff do not need to hold the puncture needle with hands, operators do not need to manually control the puncture angle of the puncture needle when a patient is subjected to puncture operation, the puncture needle is accurately inserted into the body of the patient at an angle of 30 degrees by means of an inclined plate, the convenience of an operation is improved, and the operation efficiency is improved. The difficulty of an operation is reduced, and the efficiency and the safety of the operation are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a pericardial puncture and aspiration device for cardiology. Background Technology

[0002] A pericardiocentesis aspirator is a specialized device used to extract pericardial effusion during pericardiocentesis. It is commonly used for emergency treatment of cardiac tamponade or to determine the cause of pericardial effusion. The aspirator mainly consists of three parts: a syringe, an aspiration tube, and a puncture needle. In actual operation, medical personnel first need to disinfect the puncture site, then anesthetize the puncture site, and finally insert the puncture needle into the pericardial location and use the negative pressure of the syringe to aspirate the pericardial effusion from the patient's body.

[0003] In the above procedure, when the puncture needle is inserted into the patient's body, it needs to be inserted slowly at a 30° angle to the patient's skin surface. Furthermore, when aspirating pericardial effusion using a syringe, the syringe must be pulled smoothly and slowly. These surgical requirements make pericardiocentesis difficult. Medical personnel not only need to hold the syringe by hand but also constantly pay attention to the insertion depth and angle of the puncture needle; otherwise, the aspiration efficiency will be affected. This places extremely high demands on the experience and skill of the medical personnel, and even a slight mistake can endanger the patient's health. Therefore, to improve the efficiency of pericardiocentesis aspiration devices and the safety of surgical procedures, this invention provides a pericardiocentesis aspiration device for cardiology to meet these needs. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a pericardial puncture and aspiration device for cardiology. By setting up a positioning component, not only do medical personnel no longer need to hold the puncture needle by hand, but also, during the puncture operation, the operator does not need to manually control the puncture angle of the needle. With the help of the inclined plate, the puncture needle is accurately inserted into the patient's body at a 30-degree angle, which improves the convenience of the operation, reduces the difficulty of the operation, and improves the efficiency and safety of the operation. Through the above settings, the problems of high operation difficulty and low safety in the current use of pericardial puncture and aspiration devices can be solved.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A pericardial puncture and aspiration device for cardiology includes a chest plate and a syringe. One end of the syringe is fixedly connected to an aspiration tube, and the end of the aspiration tube away from the syringe is fixedly connected to a puncture needle. The puncture needle and the aspiration tube are fixed together by a connector. A tube clamp is installed on the outer wall of the aspiration tube. A positioning component is also included to assist medical personnel in performing puncture and aspiration of pericardial effusion. The positioning component is connected to both the syringe and the chest plate.

[0006] Optionally, the positioning assembly includes a top plate fixedly connected to the top of the chest side plate, with positioning rods fixedly connected to both ends of the top plate, insert rods inserted into the positioning rods, an abdominal fitting plate fixedly connected to the outer wall of the insert rods, an inclined plate fixedly connected to one side of the abdominal fitting plate, a rotating plate rotatably connected to the inclined plate, and a positioning cylinder slidably connected to the rotating plate; the positioning assembly also includes a bottom handle sleeved on the outer wall of the syringe, a top handle rotatably connected to one end of the bottom handle, a push rod rotatably connected to the bottom of one end of the top handle, and a piston rod slidably connected to the top of the bottom handle, with one end of the piston rod inserted into the syringe.

[0007] Optionally, a back plate is fixedly connected to the bottom of the chest side plate, the chest side plate has an arc-shaped outline, and a weakening groove is provided at the connection position between the chest side plate and the back plate.

[0008] Optionally, the insertion rods are symmetrically installed on both sides of the abdominal fitting plate, the insertion rods are inclined toward the center of the abdominal fitting plate, and the insertion rods are inserted into the positioning rods and fixed by adjusting knobs.

[0009] Optionally, the abdominal fitting plate and the inclined plate form a 30-degree angle. A positioning groove is provided in the middle of the inclined plate. Two mounting grooves are provided on the inclined plate. A connecting rod is fixedly connected in the mounting groove. A clamping plate is fixedly connected to one side of the rotating plate. The clamping plate has a "C"-shaped outline. The clamping plate is clamped and fixed to the connecting rod in one of the mounting grooves on the inclined plate. A hook plate is fixedly connected to the other side of the rotating plate. The hook plate is engaged with the connecting rod in the other mounting groove on the inclined plate. A bent part is fixedly connected at the connection position between the hook plate and the rotating plate. The bent part has an arc-shaped outline. A pressure plate is fixedly connected to the end of the hook plate.

[0010] Optionally, the positioning cylinder is symmetrically equipped with sliding plates on both sides, the rotating plate is provided with adjustment grooves, the sliding plates are slidably connected to the inner walls on both sides of the adjustment grooves, the rotating plate is provided with scales, the outline of the inner circumference of the positioning cylinder is adapted to the outline of the connector, and a pull plate is fixedly connected to the top outer wall of the positioning cylinder.

[0011] Optionally, a placement plate is fixedly connected to one end of the inclined plate away from the abdominal fitting plate. The placement plate has a placement groove. The length of the placement plate is greater than the length of the bottom handle. The bottom handle is placed on the top of the placement plate. The placement plate has an arc-shaped profile.

[0012] Optionally, both the bottom grip and the top grip are provided with a second clearance groove, the outline of which is adapted to the outline of the syringe end, and the syringe is inserted and fixed on the bottom grip through the second clearance groove.

[0013] Optionally, the outer wall of the piston rod is provided with a plurality of circular groove structures arranged in a linear pattern, and a locking block that matches the outline of the circular groove structure on the piston rod is installed at one end of the push rod near the piston rod. The piston rod and the push rod are engaged with each other through the circular groove structure and the locking block.

[0014] Optionally, the top grip has a first clearance groove that matches the profile of the push rod, and a sealing plug is fixedly connected to the outer wall of the end of the piston rod that is inserted into the syringe. The sealing plug is made of rubber, and the outer circumference of the sealing plug matches the inner circumference of the syringe.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above-mentioned scheme, by setting up a positioning component, not only do medical personnel no longer need to hold the puncture needle by hand, but also, during the puncture operation, the operator does not need to manually control the puncture angle of the puncture needle. With the help of the inclined plate, the puncture needle is accurately inserted into the patient's body at a 30-degree angle, which improves the convenience of the operation, reduces the difficulty of the operation, and improves the efficiency and safety of the operation. In addition, medical personnel can use the top and bottom handles to control the syringe to aspirate the effusion, thereby improving the efficiency of the medical personnel to pull out and push the syringe inward, and thus improving the efficiency of the entire pericardiocentesis operation. During the operation, medical personnel can place the bottom handle on top of the placement plate, so that the medical personnel do not need to hold the syringe by hand throughout the operation, thereby further improving the convenience of the operation, reducing the difficulty of the operation, and improving the efficiency of the operation. Attached Figure Description

[0016] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0017] Figure 1 A three-dimensional structural diagram of a pericardial puncture and aspiration device for cardiology. Figure 2 Exploded three-dimensional structural diagram of the chest side plate and positioning components; Figure 3 for Figure 2 Enlarged 3D structural diagram at point A in the middle; Figure 4 A magnified three-dimensional structural diagram of the positioning component, syringe, and puncture needle in conjunction; Figure 5 A cross-sectional three-dimensional structural diagram showing the alignment of the positioning components, puncture needle, and connector. Figure 6 for Figure 5 Enlarged 3D structural diagram at point B; Figure 7 for Figure 5 Enlarged 3D structural diagram at point C; Figure 8 for Figure 5 Enlarged 3D structural diagram at point D; Figure 9 A magnified three-dimensional structural diagram of the rotating plate and positioning cylinder in conjunction; Figure 10 A magnified 3D structural diagram of the top grip, bottom grip, and syringe in combination; Figure 11 A cross-sectional three-dimensional structural diagram showing the top grip, bottom grip, and syringe assembly. Figure 12 An enlarged three-dimensional structural diagram of the syringe, aspiration tube, puncture needle, and connector.

[0018] Figure label: 1. Chest side plate; 2. Back plate; 3. Weakening groove; 4. Top plate; 5. Positioning rod; 6. Insert rod; 7. Adjustment knob; 8. Abdominal fitting plate; 9. Inclined plate; 10. Mounting groove; 11. Positioning groove; 12. Connecting rod; 13. Rotating plate; 14. Clamping plate; 15. Bending part; 16. Hook plate; 17. Pressure plate; 18. Adjustment groove; 19. Positioning cylinder; 20. Slide plate; 21. Pull plate; 22. Placement plate; 23. Placement groove; 24. Bottom grip; 25. Top grip; 26. Push rod; 27. Piston rod; 28. Sealing plug; 29. ​​First clearance groove; 30. Second clearance groove; 31. Syringe; 32. Aspiration tube; 33. Puncture needle; 34. Connector; 35. Tube clamp.

[0019] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0020] The following is a detailed description of a pericardial puncture and aspiration device for cardiology provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0021] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0022] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0023] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0024] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly. Example

[0025] like Figure 1As shown, an embodiment of the present invention provides a pericardial puncture and aspiration device for cardiology, including a chest side plate 1 and a syringe 31. One end of the syringe 31 is fixedly connected to an aspiration tube 32, and the end of the aspiration tube 32 away from the syringe 31 is fixedly connected to a puncture needle 33. The puncture needle 33 and the aspiration tube 32 are fixed together by a connector 34. A tube clamp 35 is installed on the outer wall of the aspiration tube 32. In this technical solution, by installing a tube clamp 35 on the outer wall of the aspiration tube 32, medical personnel can seal the aspiration tube 32 by pressing the tube clamp 35, thereby facilitating the puncture and aspiration operation. The tube clamp 35 is disclosed as prior art in this technical solution, and its specific working principle will not be described in detail here.

[0026] As one implementation method in this embodiment, such as Figures 1 to 4 and Figure 12 As shown, the positioning component assists medical personnel in performing pericardial effusion aspiration. The positioning component is connected to the syringe 31 and the chest side plate 1. The positioning component includes a top plate 4 fixedly connected to the top of the chest side plate 1, and a back plate 2 fixedly connected to the bottom of the chest side plate 1. The chest side plate 1 has an arc-shaped profile. A weakening groove 3 is provided at the connection point between the chest side plate 1 and the back plate 2. Positioning rods 5 are fixedly connected to both ends of the top plate 4. Inserted rods 6 are inserted into the positioning rods 5. An abdominal fitting plate 8 is fixedly connected to the outer wall of the inserted rods 6. The inserted rods 6 are symmetrically installed on both sides of the abdominal fitting plate 8, inclined towards the center of the abdominal fitting plate 8. The inserted rods 6 are inserted into the positioning rods 5 and fixed by screws through the adjusting knob 7. An inclined plate 9 is fixedly connected to one side of the abdominal fitting plate 8, forming a 30-degree angle with the abdominal fitting plate 8. A positioning groove 11 is provided in the middle of the inclined plate 9. During pericardial puncture surgery... Generally, the patient is in a supine position. Before surgery, medical staff place the chest side plate 1 on both sides of the patient's chest cavity. Because the chest side plate 1 has a rounded outline, it can fit well with the contours of the patient's chest cavity, thereby improving the patient's comfort when the chest side plate 1 is placed in the chest cavity. After the chest side plate 1 is placed, the back plate 2 is placed on the patient's back. With the pressure of the patient's own body when lying flat, the back plate 2 can limit the chest side plate 1, thereby improving the structural strength and stability of the chest side plate 1. Because a weakening groove 3 is opened at the connection between the chest side plate 1 and the back plate 2, the chest side plate 1 is thinned at the location of the weakening groove 3, making it easier for the connection between the chest side plate 1 and the back plate 2 to deform. This allows the chest side plate 1 and the back plate 2 to deform according to the patient's body shape, thereby improving the fit between the chest side plate 1 and the patient's body, further ensuring the stability of the chest side plate 1 and the patient's comfort.

[0027] Because the insertion rod 6 is tilted towards the center of the abdominal patch 8, it has a certain degree of elasticity. This design allows medical personnel to use the elasticity of the insertion rod 6 to first press it inward and then align it with the positioning rod 5. After releasing, the insertion rod 6 will automatically insert into the positioning rod 5 under the action of the elasticity. Once the insertion rod 6 and the positioning rod 5 are inserted together, medical personnel can adjust the relative angle between the abdominal patch 8 and the patient's skin by rotating the abdominal patch 8, so that the abdominal patch 8 is relatively parallel and adheres to the patient's skin. After the position of the abdominal patch 8 is determined, medical personnel can adjust the insertion rod by rotating the adjustment knob 7. 6. For fixation, specifically, the adjustment knob 7 consists of an outer cylinder and an inner cylinder. Threads are provided on the inner wall of the outer cylinder and the outer wall of the inner cylinder. The outer cylinder is screwed onto the outer wall of the positioning rod 5 and fixed by threaded connection. The inner cylinder is inserted into the positioning rod 5 and fixed by threaded connection as well. This configuration allows the insertion rod 6 to be locked and fixed in the positioning rod 5 by turning the adjustment knob 7. After the relative angle between the abdominal patch 8 and the patient's skin is adjusted, the abdominal patch 8 is fixed by turning the adjustment knob 7. The abdominal patch 8 and the inclined plate 9 then assist medical personnel in performing subsequent puncture operations.

[0028] Since the abdominal abutment plate 8 and the inclined plate 9 form a 30-degree angle, when the abdominal abutment plate 8 is attached to the patient's skin in parallel, the inclined plate 9 forms a 30-degree angle with the patient's skin. A positioning groove 11 that matches the size of the aspiration tube 32 is opened in the middle of the inclined plate 9, which makes it convenient for medical staff to position the puncture needle 33 and the aspiration tube 32 on the surface of the inclined plate 9. Then, with the guidance of the inclined plate 9, the puncture needle 33 is inserted into the patient's body at a 30-degree angle, thereby improving the accuracy of the insertion angle of the puncture needle 33 and reducing the difficulty of the surgical operation.

[0029] In this embodiment, as Figures 1 to 9 and Figure 12As shown, a rotating plate 13 is rotatably connected to the inclined plate 9, and a positioning cylinder 19 is slidably connected to the rotating plate 13. Two mounting slots 10 are formed on the inclined plate 9, and a connecting rod 12 is fixedly connected within each mounting slot 10. A clamping plate 14 is fixedly connected to one side of the rotating plate 13. The clamping plate 14 has a "C"-shaped profile and clamps and fixes itself to the connecting rod 12 within one of the mounting slots 10 on the inclined plate 9. A hook plate 16 is fixedly connected to the other side of the rotating plate 13, and the hook plate 16 engages with another mounting slot 10 on the inclined plate 9. On the connecting rod 12 within the mounting groove 10, a bent portion 15 is fixedly connected at the connection point between the hook plate 16 and the rotating plate 13. The bent portion 15 has an arc-shaped profile. A pressure plate 17 is fixedly connected to the end of the hook plate 16. One end of the rotating plate 13 is clamped and fixed to the connecting rod 12 by a clamping plate 14. Since the clamping plate 14 has a "C"-shaped profile, when assembling the rotating plate 13 onto the connecting rod 12, its "C"-shaped profile can be used to quickly clamp and fix the clamping plate 14 onto the connecting rod 12. After being clamped and fixed together with the connecting rod 12, medical personnel can rotate the rotating plate 13 to allow the clamping plate 14 to rotate around the axis of the connecting rod 12. The other end of the rotating plate 13 is fixed to the connecting rod 12 by a hook plate 16. The hook plate 16 and the clamping plate 14 are both "C" shaped, and the connection position between the hook plate 16 and the rotating plate 13 is provided with an arc-shaped bend 15. This design gives the hook plate 16 a certain degree of elasticity, and medical personnel can first pry the pressure plate 17 inward to press it. The hook plate 16 is deformed at the bend 15. Then, the rotating plate 13 is rotated to move the hook plate 16 toward the connecting rod 12. After the hook plate 16 passes through the connecting plate, the medical staff stops pressing the hook plate 16. Under the action of elasticity, the hook plate 16 automatically resets and is locked onto the connecting rod 12. Through the above structure, not only can the rotating plate 13 rotate on the inclined plate 9, but it can also be quickly locked and fixed on the surface of the rotating plate 13. The above solution has a simple structure and is easy to operate.

[0030] Furthermore, symmetrical sliding plates 20 are installed on both sides of the positioning cylinder 19, and an adjustment groove 18 is provided on the rotating plate 13. The sliding plates 20 are slidably connected to the inner walls on both sides of the adjustment groove 18. The rotating plate 13 has a scale, and the contour of the inner circumference of the positioning cylinder 19 matches the contour of the connector 34. A pull plate 21 is fixedly connected to the top outer wall of the positioning cylinder 19. The positioning cylinder 19 is slidably connected to the rotating plate 13 through the sliding plates 20. Since the rotating plate 13 has a scale, medical personnel can refer to the scale and pull the pull plate 21 to precisely slide and adjust the position of the positioning cylinder 19. In actual operation, medical personnel first place the puncture needle 33 and the aspiration tube 32 in the positioning groove 11 on the inclined plate 9, then slide and adjust the position of the positioning cylinder 19 so that the position of the positioning cylinder 19 corresponds to the position of the connector 34, and then rotate the rotating plate 13 to make the positioning cylinder 19 press against the outside of the connector 34. The hook plate 16 on the rotating plate 13 is then snapped and fixed onto the connecting rod 12. Since the inner circumference of the positioning cylinder 19 matches the contour of the connector 34, when the positioning cylinder 19 presses against the outside of the connector 34, it can wrap and limit the connector 34, thereby limiting and fixing the puncture needle 33. When the medical staff slides and adjusts the position of the positioning cylinder 19, the positioning cylinder 19 will drive the puncture needle 33 to slide together, so that the puncture needle 33 can be punctured into the patient's body along the inclined angle of the inclined plate 9. This setting not only eliminates the need for the medical staff to hold the puncture needle 33 by hand, but also eliminates the need for the operator to manually control the puncture angle of the puncture needle 33 when performing puncture operations on the patient. With the help of the inclined plate 9, the puncture needle 33 can be accurately inserted into the patient's body at a 30-degree angle, which improves the convenience of the operation, reduces the difficulty of the operation, and improves the efficiency and safety of the operation. Example

[0031] As one implementation method in this embodiment, such as Figures 10 to 12As shown, the positioning assembly also includes a bottom grip 24 sleeved on the outer wall of the syringe 31. A placement plate 22 is fixedly connected to the end of the inclined plate 9 away from the abdominal fitting plate 8. A placement groove 23 is provided on the placement plate 22. The length of the placement plate 22 is greater than the length of the bottom grip 24. The bottom grip 24 is placed on top of the placement plate 22, which has an arc-shaped profile. A top grip 25 is rotatably connected to one end of the bottom grip 24. A push rod 26 is rotatably connected to the bottom of one end of the top grip 25. A piston rod 27 is slidably connected to the top of the bottom grip 24. One end of the piston rod 27 is inserted into the syringe 31. A second clearance groove 30 is provided on both the bottom grip 24 and the top grip 25. The outline of the second clearance groove 30... Adapted to the contour of the syringe 31 end, the syringe 31 is inserted and fixed to the bottom handle 24 through the second clearance groove 30. The outer wall of the piston rod 27 is provided with several circular groove structures arranged linearly. The end of the push rod 26 near the piston rod 27 is equipped with a locking block that matches the contour of the circular groove structure on the piston rod 27. The piston rod 27 and the push rod 26 are interlocked by the circular groove structure and the locking block. The top handle 25 is provided with a first clearance groove 29 that matches the contour of the push rod 26. A sealing plug 28 is fixedly connected to the outer wall of the end of the piston rod 27 that is inserted into the syringe 31. The sealing plug 28 is made of rubber, and the outer circumference of the sealing plug 28 matches the inner circumference of the syringe 31.

[0032] In this technical solution, medical personnel can not only use a traditional syringe 31 to aspirate fluid from the patient's pericardium, but also use a positioning component to assist the patient in pulling the syringe 31. Specifically, the end of the syringe 31 is inserted and fixed to the bottom handle 24 through the first clearance groove 29, and the push rod 26 rotatably connected to the top handle 25 is engaged with the outer wall of the piston rod 27. Therefore, medical personnel can hold the handle and spread the top handle 25 and the bottom handle 24 by hand, allowing the push rod 26 to pull the piston rod 27 to move within the syringe 31, thereby allowing the syringe 31 to aspirate fluid from the pericardium. In addition, when it is necessary to drain the fluid aspirated from the syringe 31, medical personnel can squeeze the top handle 25 and the bottom handle 24 to make the push rod 26 push the piston rod 27 to move within the syringe 31, thereby draining the fluid from the syringe 31. This setting can improve the efficiency of medical personnel pulling and pushing the syringe 31, thereby improving the efficiency of the entire pericardial puncture surgery.

[0033] Furthermore, during the operation, medical personnel can place the bottom handle 24 on top of the placement plate 22. Since both the placement plate 22 and the bottom handle 24 have an arc-shaped profile, they can be structurally compatible, thereby improving the stability of the bottom handle 24. This design eliminates the need for medical personnel to hold the syringe 31 with their hands throughout the operation, thereby further improving the convenience of the operation, reducing the difficulty of the operation, and increasing the efficiency of the operation.

[0034] The working principle of the technical solution provided by this invention is as follows: In use, medical staff first place the chest side plate 1 on both sides of the patient's chest cavity. After the chest side plate 1 is placed, the back plate 2 is placed on the patient's back. The pressure of the patient lying flat allows the back plate 2 to limit the position of the chest side plate 1, thereby improving the structural strength and stability of the chest side plate 1. After the chest side plate 1 is placed, the medical staff first presses the insertion rod 6 inward and then aligns the insertion rod 6 with the positioning rod 5. After releasing, the insertion rod 6 will automatically insert into the positioning rod 5 under the action of elasticity. After the insertion rod 6 and the positioning rod 5 are inserted together, the medical staff adjusts the relative angle between the abdominal patch 8 and the patient's skin by rotating the abdominal patch 8, so that the abdominal patch 8 is relatively parallel and attached to the patient's skin. After the position of the abdominal patch 8 is determined, the medical staff fixes the insertion rod 6 by rotating the adjustment knob 7.

[0035] After the position of the abdominal patch 8 is adjusted and fixed stably, the medical staff first places the puncture needle 33 and the aspiration tube 32 in the positioning groove 11 on the inclined plate 9, and then slides and adjusts the position of the positioning cylinder 19 so that the position of the positioning cylinder 19 corresponds to the position of the connector 34. Then, the rotating plate 13 is rotated so that the positioning cylinder 19 presses against the outside of the connector 34, and the hook plate 16 on the rotating plate 13 is locked and fixed on the connecting rod 12. At this time, the medical staff can perform the puncture operation. The medical staff slides and adjusts the position of the positioning cylinder 19 so that the positioning cylinder 19 drives the puncture needle 33 to slide together, so that the puncture needle 33 is inserted into the patient's body at a 30-degree angle along the inclined plate 9. After the puncture needle 33 is inserted into the pericardium, the medical staff uses the hand handle and uses their hands to open the top handle 25 and the bottom handle 24, so that the push rod 26 pulls the piston rod 27 to move in the syringe 31, so that the syringe 31 can aspirate the fluid in the pericardium.

[0036] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0037] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pericardial puncture and aspiration device for cardiology, comprising a chest lateral plate and a syringe, characterized in that, One end of the syringe is fixedly connected to a liquid extraction tube, and the end of the liquid extraction tube away from the syringe is fixedly connected to a puncture needle. The puncture needle and the liquid extraction tube are fixed together by a connector, and a tube clamp is installed on the outer wall of the liquid extraction tube. A positioning component is provided to assist medical personnel in performing puncture and aspiration of pericardial effusion in patients. The positioning component is connected to the syringe and the chest plate, respectively.

2. The pericardial puncture and aspiration device for cardiology according to claim 1, characterized in that, The positioning assembly includes a top plate fixedly connected to the top of the chest side plate, with positioning rods fixedly connected to both ends of the top plate, insert rods inserted into the positioning rods, an abdominal fitting plate fixedly connected to the outer wall of the insert rods, an inclined plate fixedly connected to one side of the abdominal fitting plate, a rotating plate rotatably connected to the inclined plate, and a positioning cylinder slidably connected to the rotating plate. The positioning assembly also includes a bottom grip sleeved on the outer wall of the syringe, one end of which is rotatably connected to a top grip, the bottom of one end of which is rotatably connected to a push rod, and the top of the bottom grip is slidably connected to a piston rod, one end of which is inserted into the syringe.

3. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, A back plate is fixedly connected to the bottom of the chest side plate. The chest side plate has an arc-shaped outline, and a weakening groove is provided at the connection position between the chest side plate and the back plate.

4. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, The insert rods are symmetrically installed on both sides of the abdominal fitting plate, with the insert rods inclined toward the center of the abdominal fitting plate. The insert rods are inserted into the positioning rods and fixed by adjusting the knob.

5. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, The abdominal fitting plate and the inclined plate form a 30-degree angle. A positioning groove is provided in the middle of the inclined plate. Two mounting grooves are provided on the inclined plate, and a connecting rod is fixedly connected in the mounting groove. A clamping plate is fixedly connected to one side of the rotating plate. The clamping plate has a "C"-shaped outline and is clamped and fixed to the connecting rod in one of the mounting grooves on the inclined plate. A hook plate is fixedly connected to the other side of the rotating plate. The hook plate is engaged with the connecting rod in the other mounting groove on the inclined plate. A bent part with an arc-shaped outline is fixedly connected at the connection position between the hook plate and the rotating plate. A pressure plate is fixedly connected to the end of the hook plate.

6. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, The positioning cylinder has symmetrically mounted sliding plates on both sides, and the rotating plate has an adjustment groove. The sliding plates are slidably connected to the inner walls on both sides of the adjustment groove. The rotating plate has a scale. The outline of the inner circumference of the positioning cylinder matches the outline of the connector. A pull plate is fixedly connected to the top outer wall of the positioning cylinder.

7. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, A placement plate is fixedly connected to one end of the inclined plate away from the abdominal fitting plate. The placement plate has a placement groove. The length of the placement plate is greater than the length of the bottom handle. The bottom handle is placed on the top of the placement plate. The placement plate has an arc-shaped outline.

8. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, Both the bottom grip and the top grip are provided with a second clearance groove. The outline of the second clearance groove is adapted to the outline of the syringe end. The syringe is inserted and fixed on the bottom grip through the second clearance groove.

9. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, The piston rod has a number of circular groove structures arranged in a linear pattern on its outer wall. The push rod has a locking block that matches the outline of the circular groove structure on the piston rod at one end near the piston rod. The piston rod and the push rod are engaged with each other through the circular groove structure and the locking block.

10. The pericardial puncture and aspiration device for cardiology according to claim 2, characterized in that, The top grip has a first clearance groove that matches the contour of the push rod. A sealing plug is fixedly connected to the outer wall of the end of the piston rod that is inserted into the syringe. The sealing plug is made of rubber and the outer circumference of the sealing plug matches the inner circumference of the syringe.

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