Dry and wet pericardium puncture outfit

Abstract

The invention relates to a dry and wet pericardium puncture outfit which comprises a shell, a multi-cavity tube, a puncture needle and a puncture guide wire, and the multi-cavity tube is arranged on the shell; the puncture needle is arranged in one cavity of the multi-cavity tube in a sliding manner; the puncture guide wire is slidably arranged in other cavities of the multi-cavity tube. The puncture needle and the puncture guide wire are combined through the multi-cavity tube, the integrated structure is designed, and the multi-cavity tube type pericardium puncture needle is suitable for dry and wet pericardium puncture and can be operated only through different use modes. The structure is simple, the operation difficulty is low, a doctor can simply and conveniently perform puncture, an operation can be completed without too many experiences, the risk coefficient of the puncture method and process is lower, and more hospitals and doctors can conveniently use the puncture device.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a wet and dry dual-purpose pericardial puncture device. Background Art

[0002] The pericardium is a layer of connective tissue membrane structure attached to the outer wall of the heart. The space between the pericardium and the outer wall of the heart is called the pericardial cavity. Pericardiocentesis is the basis of many cardiac interventional surgeries. The surgery is divided into wet pericardiocentesis and dry pericardiocentesis. Wet pericardiocentesis means that there is pericardial effusion in the pericardial cavity, which will expand the pericardial cavity and increase the distance between the pericardium and the ventricle. Wet pericardiocentesis can extract the pericardial effusion in the pericardial cavity to prevent the patient from affecting the heart due to pericardial effusion. Dry pericardiocentesis means that there is no pericardial effusion in the pericardial cavity. The purpose of dry pericardiocentesis is to establish a surgical channel to facilitate subsequent electrophysiological heart disease mapping, ablation, and cardiac outer wall pacing electrode lead implantation.

[0003] Existing pericardiocentesis tools are basically scattered puncture sets, which require doctors to use them one by one during surgery. The operation is complicated and the doctor's learning curve is increased. In addition, the parts required for dry pericardiocentesis sets and wet pericardiocentesis sets are different. Different tools need to be prepared for different puncture operations, resulting in additional preparation work and inconvenience for clinical emergency operations.

[0004] Currently, some manufacturers have designed some integrated puncture devices, but the design structure is complex, the cost is high, the operation is difficult, the failure rate of the complex structure is also higher, and the function is single, and it is impossible to realize two puncture operations. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of existing technologies by providing a dual-use wet and dry pericardial puncture device. This device combines a puncture needle and a puncture guidewire via a multi-lumen tube, creating an integrated structure suitable for both dry and wet pericardial punctures, allowing for simpler and easier operation. Furthermore, the device's simple structure and ease of use allow physicians to easily and conveniently perform punctures without requiring extensive experience. The method and process also offer a lower risk factor, making it more accessible to a wider range of hospitals and physicians.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention provides a wet and dry dual-use pericardial puncture device, comprising: case; a multi-lumen tube, the multi-lumen tube being arranged on the shell; a puncture needle, the puncture needle being slidably disposed in one of the lumens of the multi-lumen tube; The puncture guide wire is slidably arranged in the other lumens of the multi-lumen tube.

[0007] Preferably, it also includes: The puncture needle push button is slidably arranged on the housing and is connected to the puncture needle.

[0008] Preferably, a push button sliding hole is formed on the housing, and the puncture needle push button is transitionally fitted in the push button sliding hole.

[0009] Preferably, an elastic protrusion is formed on the surface of the puncture needle push button that is in contact with the push button sliding hole.

[0010] Preferably, a guide hole is formed on the puncture needle push button, and the guide hole is communicated with the inner hole of the puncture needle for inserting a guide wire.

[0011] Preferably, it also includes: A guide wire push button is slidably arranged on the shell, and the guide wire push button is connected to the puncture guide wire.

[0012] Preferably, the housing is formed with a guide groove, and the guide wire push button is formed with a protrusion, and the protrusion is slidably fitted in the guide groove.

[0013] Preferably, it also includes: An elastic member, wherein two ends of the elastic member are respectively connected to the guide wire push button and the housing.

[0014] Preferably, a guide shaft is further included, and an axial hole is formed on the guide wire push button. The guide shaft passes through the axial hole and is fixed on the shell.

[0015] Preferably, it also includes: A guide block is fixed on the housing. A guide hole is formed on the guide block, and the puncture needle and the puncture guide wire pass through the guide hole.

[0016] The present invention has at least the following beneficial effects: This invention combines the puncture needle and guidewire via a multi-lumen tube, creating an integrated structure suitable for both dry and wet pericardial punctures, performed simply by different methods. Furthermore, the invention boasts a simple structure and low operational difficulty, allowing doctors to perform puncture easily and conveniently without requiring extensive experience. The puncture method and process also offer a lower risk factor, making it more accessible to a wider range of hospitals and physicians.

[0017] A push button sliding hole is formed on the shell of the present invention, and the puncture needle push button is transitionally fitted in the push button sliding hole. The outer diameter of the puncture needle push button is slightly larger than the push button sliding hole. When the puncture needle push button is in the push button sliding hole, its outer periphery is squeezed and deformed, so the puncture needle push button can be fixed at any position in the push button sliding hole. The doctor pushes the puncture needle push button to any position and releases it to achieve fixation.

[0018] The shell of the present invention is formed with a guide groove, and a protrusion is formed on the guide wire push button. The protrusion can be slidably fitted in the guide groove. Under the limiting and guiding effect of the guide groove, the doctor is not likely to shake when pushing the guide wire push button, thereby improving the success rate of the operation.

[0019] The present invention fixes the puncture needle and the puncture guide wire by the guide block, which can ensure the stability of the puncture needle and the puncture guide wire during the sliding process and improve the success rate of the operation.

[0020] The guide wire push button of the present invention is connected to the elastic part. When the guide wire push button pushes the puncture guide wire outward, the elastic part is compressed. When the head end of the puncture guide wire passes through the pericardium and curls into a pigtail shape, the guide wire push button is released. The guide wire push button and the puncture guide wire move in the opposite direction under the rebound action of the elastic part, so that the head end of the puncture guide wire presses against and supports the pericardium, thereby increasing the gap between the pericardium and the outer wall of the heart, thereby facilitating subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention in a non-puncture state; Figure 2 This is a structural schematic diagram of the wet and dry dual-use pericardial puncture device in a puncture state according to an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the wet / dry dual-use pericardial puncture device according to an embodiment of the present invention in a state where a guide wire is inserted; Figure 4 An exploded view of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of the multi-lumen tube, puncture needle and puncture guide wire of the wet / dry dual-use pericardial puncture device in a non-puncture state according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of the multi-lumen tube, puncture needle and puncture guide wire of the wet / dry dual-use pericardial puncture device in the puncture state according to an embodiment of the present invention; Figure 7 This is a partial structural diagram of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention in a non-puncturing state; Figure 8 This is a schematic structural diagram of a portion of the housing of a wet / dry dual-use pericardial puncture device according to an embodiment of the present invention; Figure 9 This is a schematic structural diagram of the housing of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of dry pericardium; Figure 11 This is a schematic diagram of the structure of the wet pericardium; Figure 12 This is a schematic structural diagram of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention when the multi-lumen tube reaches the dry pericardium; Figure 13 This is a schematic structural diagram of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention when the puncture guide wire is puncturing the dry pericardium; Figure 14 for Figure 13 Enlarged view of a in the middle; Figure 15 This is a structural schematic diagram of the wet / dry dual-use pericardial puncture device according to an embodiment of the present invention when the puncture guide wire begins to bend; Figure 16 for Figure 15 Enlarged view of middle b; Figure 17 This is a structural schematic diagram of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention as the puncture guide wire gradually takes shape; Figure 18 for Figure 17 Enlarged view of middle c; Figure 19 This is a schematic structural diagram of the puncture needle of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention when puncturing the dry pericardium; Figure 20 for Figure 19 Enlarged view of middle d; Figure 21 This is a schematic structural diagram of the wet / dry dual-use pericardial puncture device according to an embodiment of the present invention when a guide wire is inserted; Figure 22 for Figure 21 Enlarged view of middle e; Figure 23 This is a schematic structural diagram of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention when withdrawn; Figure 24 for Figure 23 Enlarged view of middle f; Figure 25 This is a schematic diagram of the structure when only the guide wire is left; Figure 26 This is a schematic structural diagram of the multi-lumen tube of the puncture needle of the wet and dry dual-use pericardial puncture device according to an embodiment of the present invention when it reaches the wet pericardium; Figure 27 This is a schematic structural diagram of the puncture needle of the wet / dry pericardial puncture device according to an embodiment of the present invention when puncturing the wet pericardium; Figure 28 for Figure 27 Enlarged view of middle g; Figure numerals: 1, shell; 2, multi-lumen tube; 3, puncture needle; 4, puncture guide wire; 5, upper shell; 6, lower shell; 7, locking ring; 8, fixed shaft; 9, recessed portion; 10, puncture needle push button; 11, push button sliding hole; 12, elastic protrusion; 13, guide hole; 14, guide guide wire; 15, guide wire push button; 16, sliding hole; 17, guide groove; 18, protrusion; 19, elastic part; 20, guide shaft; 21, guide block; 22, fixed sleeve; 23, pericardium; 24, outer wall of heart; 25, pericardial cavity. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0023] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-3 As shown, an embodiment of the present invention provides a wet / dry pericardial puncture device, comprising a housing 1, a multi-lumen tube 2, a puncture needle 3, and a puncture guidewire 4. The multi-lumen tube 2 is disposed on the housing 1; the puncture needle 3 is slidably disposed within one lumen of the multi-lumen tube 2; and the puncture guidewire 4 is slidably disposed within the other lumen of the multi-lumen tube 2.

[0026] like Figure 4-9As shown, the shell 1 is internally formed with cavities for placing various components, and one end of the multi-lumen tube 2 is fixed inside the shell 1, while the other end passes through the shell 1. The shell can be divided into an upper shell 5 and a lower shell 6. The upper shell 5 and the lower shell 6 can be disassembled and fixed together by a locking ring 7 or a fixed shaft 8. This structure facilitates installation and maintenance. The shell 1 is provided with a recessed portion 9 for the doctor's convenience. The shell is also provided with a fixing sleeve 22, in which one end of the multi-lumen tube 2 is fixed. The multi-lumen tube 2 is internally provided with multiple cavities, and the number, shape, and arrangement of the cavities are selected according to actual needs. For example, if there is one puncture needle 3 and two puncture guidewires 4, then the multi-lumen tube 2 is provided with three cavities, and the shape of the cavity is consistent with the puncture needle 3 and the puncture guidewire 4. The cavity for inserting the puncture needle 3 can be set in the middle, and the two cavities for inserting the puncture guidewire 4 can be set on both sides. The puncture guide wire 4 can be made of nickel-titanium flat wire with a sharp pigtail shape at the head end. When it is fully retracted inside the multi-lumen tube 2, it will be in a straightened state. When it is released, it will automatically roll into a pigtail shape. This structure can support the pericardium 23 after puncturing it, and can rotate in time after puncture to achieve the effect of not damaging other tissues.

[0027] The present invention combines a puncture needle 3 and a puncture guidewire 4 via a multi-lumen tube 2, creating an integrated structure suitable for both dry and wet pericardial punctures, performed simply by different methods. Furthermore, the present invention boasts a simple structure and low operational difficulty, allowing doctors to perform punctures easily and conveniently without requiring extensive experience. The puncture method and process also offer a lower risk factor, making it more accessible to a wider range of hospitals and doctors.

[0028] In a preferred embodiment of this embodiment, the wet / dry pericardial puncture device further includes a puncture needle push button 10, which is slidably disposed on the housing 1 and is connected to the puncture needle 3. The puncture needle push button 10 can be connected to the puncture needle 3 by bonding, and the puncture needle 3 can be inserted and removed by pushing or pulling, which is simple and convenient to operate.

[0029] In a preferred embodiment of this invention, a push button slide hole 11 is formed in the housing 1, and the puncture needle push button 10 is transitionally fitted into the push button slide hole 11. The push button slide hole 11 in the housing 1 corresponds to the multi-lumen tube 2. The push button slide hole 11 and the puncture needle push button 10 can be configured to be cylindrical. The outer diameter of the puncture needle push button 10 is slightly larger than the push button slide hole 11. When the puncture needle push button 10 is in the push button slide hole 11, its outer structure is squeezed and deformed. Therefore, the puncture needle push button 10 can be fixed at any position in the push button slide hole 11. In other words, the doctor can push the puncture needle push button 10 to any position and release it to fix it.

[0030] In a preferred embodiment of this embodiment, the outer structure of the puncture needle push button 10 is a resilient protrusion 12 that fits on the surface of the push button sliding hole 11. The protrusion on the surface of the puncture needle push button 10 can be arranged in a circle around itself, and multiple circles can be provided to ensure a tight fixation in any position. The surface of the push button sliding hole 11 can be provided with a groove that matches the resilient protrusion 12.

[0031] In a preferred embodiment of this embodiment, a guide hole 13 is formed on the puncture needle push button 10. The guide hole 13 is connected to the inner hole of the puncture needle 3 and is used to insert a guide wire 14. The guide hole 13 can be designed as a conical Luer hole to facilitate the doctor to use a syringe to clean or aspirate pericardial effusion during surgery.

[0032] In a preferred embodiment of this embodiment, the wet / dry pericardial puncture device further includes a guidewire push button 15, which is slidably disposed on the housing 1 and is connected to the puncture guidewire 4. The guidewire push button 15 can be disposed on a side of the housing 1, which has a sliding hole 16 formed therein. A portion of the guidewire push button 15 is located outside the housing 1, while a portion passes through the sliding hole 16 and is connected to the internal guidewire. The doctor can conveniently operate the guidewire push button 15.

[0033] In a preferred embodiment of this invention, the housing 1 is formed with a guide groove 17, and the guide wire push button 15 is formed with a protrusion 18, which is slidably engaged in the guide groove 17. The guide groove 17 and the protrusion 18 can be provided in two positions, one above the other. Under the limiting and guiding effect of the guide groove 17, the guide wire push button 15 is less likely to shake when the doctor pushes it, thereby improving the success rate of the operation.

[0034] In a preferred embodiment of this embodiment, the wet / dry pericardial puncture device further includes an elastic member 19, the ends of which are connected to the guidewire push button 15 and the housing 1, respectively. Two elastic members 19 may be provided, with the guidewire push button 15 connected to the elastic member 19. When the guidewire push button 15 pushes the puncture guidewire 4 outward, the elastic member 19 is compressed. When the tip of the puncture guidewire 4 passes through the pericardium 23 and curls into a pigtail shape, the guidewire push button 15 is released. The guidewire push button 15 and the puncture guidewire 4 move in the opposite direction due to the rebound action of the elastic member 19, causing the tip of the puncture guidewire 4 to contact and support the pericardium 23, thereby increasing the gap between the pericardium 23 and the outer wall 24 of the heart, thereby facilitating subsequent operation. The elasticity of the elastic member 19 can be determined based on the physician's experience and extensive experiments. The elastic member 19 can be a spring.

[0035] In a preferred embodiment of this embodiment, the wet / dry pericardial puncture device further includes a guide shaft 20. A shaft hole is formed in the guidewire push button 15, through which the guide shaft 20 passes and is fixed to the housing 1. The limiting and guiding action of the guide shaft 20 further enhances the stability of the guidewire push button 15 during sliding. Two guide shafts 20 and two shaft holes may be provided. The elastic member 19 may have a hollow structure, allowing the guide shaft 20 to be inserted within the elastic member 19, and the elastic member 19 and the guide shaft 20 to be disposed within the guide groove 17. This arrangement significantly reduces component space.

[0036] In a preferred embodiment of this embodiment, the dual-use wet / dry pericardial puncture device further includes a guide block 21, which is fixed to the housing 1 and defines a guide hole through which the puncture needle 3 and the puncture guidewire 4 pass. Due to the relatively large interior space of the housing 1, the puncture needle 3 and the puncture guidewire 4 protrude a considerable distance from the multi-lumen tube 2. The guide block 21 further secures the puncture needle 3 and the puncture guidewire 4, ensuring their stability during sliding, thereby improving the success rate of the procedure.

[0037] The following describes the working process of performing puncture using the wet and dry dual-use pericardial puncture device of this embodiment.

[0038] Preparations are required before puncture: disinfect the puncture site first, then perform local anesthesia on the puncture site, and then use a short sheath (not shown) to perform thoracotomy and leave the sheath in the thoracic cavity. Figure 10-11 shown.

[0039] After the preparation is completed, dry pericardiocentesis or wet pericardiocentesis can be performed. Figure 12-25 As shown in Figure 2, the working process of performing dry pericardiocentesis is as follows: The first step is to hold the shell 1 and insert the multi-lumen tube 2 along the retained short sheath to the edge of the pericardium 23, and then insert the head end of the multi-lumen tube 2 into the puncture point of the pericardium 23 until the head end contacts the puncture point; the second step is to push the puncture guide wire 4 toward the puncture point for a certain distance so that the head end of the puncture guide wire 4 is inserted into the pericardium 23. The head end of the puncture guide wire 4 is continuously bent and formed during the process of inserting into the pericardium 23, and finally supports the pericardium 23, so that space is left between the pericardium 23 and the outer wall 24 of the heart; the third step is to push the puncture needle 3 into the pericardium 23 by a predetermined distance; the fourth step is to insert the guide wire 14 used to establish a surgical channel into the pericardium 23 along the inner hole of the puncture needle 3; the fifth step is to withdraw the puncture needle 3, the puncture guide wire 4 and the multi-lumen tube 2 in sequence.

[0040] like Figures 26-28 As shown in Figure 1, the working process of wet pericardiocentesis is as follows: In the first step, hold the shell 1 and insert the multi-lumen tube 2 along the retained short sheath to the edge of the pericardium 23, and then insert the head end of the multi-lumen tube 2 into the puncture point of the pericardium 23 until the head end contacts the puncture point; in the second step, push the puncture needle 3 toward the puncture point for a certain distance so that the puncture needle 3 is inserted into the pericardial cavity 25; in the third step, use a syringe or other tool to aspirate the pericardial effusion along the inner hole of the puncture needle 3.

[0041] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific embodiments. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be understood to be within the scope of protection of the present invention.

Claims

1. A wet and dry pericardial puncture device, characterized in that: include: housing (1); A multi-lumen tube (2), the multi-lumen tube (2) being arranged on the housing (1); a puncture needle (3), the puncture needle (3) being slidably disposed in one of the cavities of the multi-lumen tube (2); A puncture guide wire (4), wherein the puncture guide wire (4) is slidably arranged in another cavity of the multi-lumen tube (2).

2. The wet / dry pericardial puncture device according to claim 1, characterized in that: Also includes: A puncture needle push button (10) is slidably arranged on the housing (1), and the puncture needle push button (10) is connected to the puncture needle (3).

3. The wet / dry pericardial puncture device according to claim 2, characterized in that: A push button sliding hole (11) is formed on the housing (1), and the puncture needle push button (10) is transitionally fitted in the push button sliding hole (11).

4. The wet / dry pericardial puncture device according to claim 3, characterized in that: An elastic protrusion (12) is formed on the surface of the puncture needle push button (10) that is in contact with the push button sliding hole (11).

5. The wet / dry pericardial puncture device according to claim 2 or 3, characterized in that: A guide hole (13) is formed on the puncture needle push button (10), and the guide hole (13) is communicated with the inner hole of the puncture needle (3) and is used for inserting a guide wire (14).

6. The wet / dry pericardial puncture device according to claim 1 or 2, characterized in that: Also includes: A guide wire push button (15), the guide wire push button (15) is slidably arranged on the housing (1), and the guide wire push button (15) is connected to the puncture guide wire (4).

7. The wet / dry pericardial puncture device according to claim 6, characterized in that: The housing (1) is formed with a guide groove (17), and the guide wire push button (15) is formed with a protrusion (18), and the protrusion (18) is slidably engaged in the guide groove (17).

8. The wet / dry pericardial puncture device according to claim 6, characterized in that: Also includes: An elastic member (19), wherein two ends of the elastic member (19) are respectively connected to the guide wire push button (15) and the housing (1).

9. The wet / dry pericardial puncture device according to claim 8, characterized in that: Also includes: A guide shaft (20) is formed on the guide wire push button (15), and an axis hole is formed on the guide shaft (20). The guide shaft (20) passes through the axis hole and is fixed on the housing (1).

10. The wet / dry pericardial puncture device according to claim 1, characterized in that: Also includes: A guide block (21), the guide block (21) is fixed on the housing (1), a guide hole is formed on the guide block (21), and the puncture needle (3) and the puncture guide wire (4) pass through the guide hole.

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