Lung needle biopsy coaxial needle sheath system capable of preventing and treating air regurgitation

Abstract

The utility model relates to the technical field of vibrating screens, in particular to a lung needle biopsy coaxial needle sheath system capable of preventing and treating air regurgitation, which comprises an outer sheath and a coaxial needle core, a needle inlet and a needle outlet are respectively arranged at two ends of the outer sheath, the diameter of the needle inlet is larger than that of the needle outlet, and an anti-regurgitation adhesive film is arranged at the needle inlet. The anti-backflow rubber film is arranged at the needle inlet of the outer sheath, the coaxial needle core and the needle biopsy needle are allowed to repeatedly pass through the outer sheath, air can be prevented from entering the chest, and complications such as pneumothorax and hemopneumothorax are reduced; meanwhile, a branch pipe and a valve are arranged on the side face of the outer sheath, artificial negative pressure can be formed through suction of the branch pipe and the valve, various complications such as pneumothorax or hemopneumothorax can be found and treated in the first time, the puncture injury risk of complex and dangerous parts is reduced as much as possible, and the success rate and safety of the thoracic biopsy operation are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical puncture devices, and particularly relates to a lung puncture biopsy coaxial needle sheath system capable of preventing and controlling air backflow. Background Art

[0002] Lung cancer is the most common type of chest tumor and is highly prevalent in my country. Pathological puncture biopsy is the key to early diagnosis and treatment. Today is the era of precision medicine. The rapid development of pathology and genetics has led to an increasing demand for clinical biopsy technology, and percutaneous puncture biopsy is the most commonly used biopsy technology.

[0003] At present, the most commonly used percutaneous biopsy needle for chest tumors in clinical practice is the coaxial biopsy needle technology, which consists of an outer sleeve and a needle core. After puncturing the target tissue, the outer sleeve can be used as a channel for fixation, while the needle core can pass through multiple times and achieve multiple biopsy sampling, reducing the workload and errors of repeated positioning, greatly improving the efficiency of biopsy surgery, and can improve the quantity and quality of tumor specimens, thereby improving the positive rate of pathological diagnosis. Despite this, this coaxial needle still cannot avoid the occurrence of complications such as pneumothorax and hemothorax caused by gas leaking into the chest through the outer sleeve during the repeated passage of the needle core through the outer sleeve and the exchange of biopsy needles, which may be a fatal blow to seriously ill tumor patients. Utility Model Content

[0004] The utility model aims to provide a lung puncture biopsy coaxial needle sheath system capable of preventing and treating air reflux, so as to solve the problem that the existing lung puncture biopsy needle is easy to cause complications such as pneumothorax and hemothorax during operation.

[0005] The specific technical solutions are as follows:

[0006] A coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux comprises an outer sheath and a coaxial needle core, wherein a needle entry port and a needle exit port are respectively arranged at two ends of the outer sheath, wherein the diameter of the needle entry port is larger than the diameter of the needle exit port, and the invention is characterized in that an anti-reflux film is arranged at the needle entry port.

[0007] Preferably, the anti-reflux film is fixed on a clamp ring, and the clamp ring is detachably inserted at the needle inlet, so that the anti-reflux film can be easily replaced.

[0008] Preferably, the clasp includes a first clasp and a second clasp, and the first clasp and / or the second clasp can rotate relative to the outer sheath. By rotating the first clasp and / or the second clasp, the puncture openings on the anti-reflux adhesive films of the first clasp and the second clasp can be staggered, which is more conducive to gas isolation.

[0009] Preferably, the anti-reflux adhesive films of the first and second clamping rings are close to each other and can rotate relative to each other, such as the anti-reflux adhesive film of the first clamping ring is arranged at the top of the first clamping ring, and the anti-reflux adhesive film of the second clamping ring is arranged at the bottom of the second clamping ring.

[0010] Preferably, the first clamp ring and the second clamp ring are respectively provided with rotation marks, which can be rotational circular angle marks, or just marks in the shape of two dots.

[0011] Preferably, one side of the outer sheath is also connected to a branch pipe, and a valve is provided on the branch pipe.

[0012] Preferably, the valve is also provided with an air extraction interface and an injection interface, and an existing multifunctional injection connector can be used.

[0013] Preferably, the anti-reflux film is made of silica gel, which allows the puncture needle to pass through and has a certain resilience to prevent gas from entering and exiting.

[0014] Compared with the existing technology, the utility model has the following beneficial effects:

[0015] 1. The utility model provides an anti-reflux film at the needle entrance of the outer sheath, allowing the coaxial needle core and the puncture biopsy needle to repeatedly pass through the outer sheath, but preventing gas from entering the chest cavity, reducing the occurrence of complications such as pneumothorax and hemothorax. The anti-reflux film can be fixed on the clamp ring, and then detachably connected to the outer sheath through the clamp ring, which is convenient for replacement and use, safe and hygienic.

[0016] 2. The utility model provides a first clamp and / or a second clamp that can rotate relative to the outer sheath. At the same time, the anti-reflux films of the first clamp and the second clamp are close to each other and can rotate relative to each other. The second clamp can be rotated before repeated punctures to stagger the puncture openings of the anti-reflux films of the first clamp and the second clamp, which is more conducive to gas isolation and further reduces the probability of pneumothorax.

[0017] 3. The utility model provides a branch tube and a valve on the side of the outer sheath, and also provides an air suction interface and an injection interface at the valve, so that artificial negative pressure can be formed by suction, and various complications such as pneumothorax or hemothorax can be discovered and treated in the first time, so as to minimize the risk of puncture injury in complex and dangerous parts, and achieve the purpose of improving the success rate and safety of thoracic biopsy surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0019] Figure 1 The utility model is a schematic diagram of the structure of a coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux.

[0020] Figure 2 The utility model is a schematic diagram of the disassembled structure of the coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux.

[0021] Figure 3 It is a structural schematic diagram of the first clamping ring of the utility model.

[0022] Figure 4 It is a structural schematic diagram of another embodiment of the utility model.

[0023] Figure 5 It is a schematic structural diagram of the first clamping ring and the second clamping ring of the utility model.

[0024] Figure 6 It is a schematic diagram of the split structure of the first clamping ring and the second clamping ring of the utility model.

[0025] Among them, the main reference numerals are described as follows:

[0026] 1. Outer sheath; 11. Needle inlet; 12. Needle outlet; 2. Coaxial needle core; 3. First clamping ring; 31. Clamping part; 32. Annular groove; 4. Branch tube; 5. Anti-reflux film; 6. Vacuum interface; 7. Injection interface; 8. Valve; 9. Second clamping ring; 91. Protrusion. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there are terms "first", "second" and "third" in the description, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0031] Example 1

[0032] like Figure 1-2 As shown, a coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux comprises an outer sheath 1, a coaxial needle core 2, a first clamp ring 3 and a branch tube 4;

[0033] The outer sheath 1 is a hollow tubular structure, and a needle entry port 11 and a needle exit port 12 are respectively provided at both ends of the outer sheath 1. The diameter of the needle entry port 11 is larger than the diameter of the needle exit port 12. The outer sheath 1 is used for puncture positioning;

[0034] The coaxial needle core 2 can repeatedly pass through the needle entry port 11 and the needle exit port 12 of the outer sheath 1 for multiple times, and is used for biopsy sampling of chest tumors;

[0035] The first clamp ring 3 is arranged at the needle entrance 11 of the outer sheath 1, and an anti-reflux film 5 is arranged on the first clamp ring 3. The anti-reflux film 5 can allow the puncture needle to pass through and has a certain resilience to prevent gas from entering and exiting;

[0036] The branch tube 4 is connected to one side of the outer sheath 1 , and a valve 8 with an air extraction interface 6 and an injection interface 7 is provided on the branch tube 4 . The branch tube 4 is used for extracting air, drawing blood, drawing water or injecting medicine.

[0037] The utility model provides an anti-reflux adhesive film 5 at the needle entrance 11 of the outer sheath 1, allowing the coaxial needle core 2 and the puncture biopsy needle to repeatedly pass through the outer sheath 1, but preventing gas from entering the chest cavity, thereby reducing the occurrence of complications such as pneumothorax and hemothorax. At the same time, a branch pipe 4 and a valve 8 are provided on the side of the outer sheath 1, through which artificial negative pressure can be formed by suction, and various complications such as pneumothorax and hemothorax can be discovered and treated in the first time, thereby minimizing the risk of puncture injury in complex and dangerous parts.

[0038] Specific, combined Figure 3 The first clamp ring 3 is a hollow annular structure, and a clamping portion 31 is provided at one end of the first clamp ring 3. The diameter of the clamping portion 31 is slightly smaller than the diameter of other parts, and the anti-reflux film 5 is provided at one end of the first clamp ring 3 away from the clamping portion 31. The anti-reflux film 5 can be fixed to the first clamp ring 3 by gluing. In other embodiments, a circle of protrusions 91 can also be provided on the inner side of the first clamp ring 3, and after the outer periphery of the anti-reflux film 5 is placed on the protrusions 91, the anti-reflux film 5 is fixed to the first clamp ring 3 by a clamping block. The anti-reflux film 5 can prevent gas from entering the chest cavity and reduce the occurrence of complications such as pneumothorax and hemothorax. The anti-reflux film 5 is detachably connected to the outer sheath 1 through the clamp ring, which is convenient for replacement and use, safe and hygienic. The anti-reflux film 5 is made of medical materials such as silica gel, which can not only allow the puncture needle to pass through, but also has a certain resilience to prevent gas from entering or coming out after the needle is removed.

[0039] Specifically, combined Figure 1 , a branch pipe 4 is also connected to one side of the outer sheath 1, and a valve 8 is provided on the branch pipe 4. An air extraction interface 6 and an injection interface 7 are also provided at the valve 8. The branch pipe 4 can adopt a plastic hose for intravenous drip, and its diameter is smaller than that of the outer sheath 1. The valve 8 can adopt an existing multifunctional injection joint, that is, an air extraction interface 6 and an injection interface 7 are also provided at the valve 8. The regulating valve 8 can open any one of the air extraction interface 6 and the injection interface 7, or can close the air extraction interface 6 and the injection interface 7 at the same time. The branch pipe 4 can be connected to the suction device, and artificial negative pressure can be formed by suction, so as to find and deal with various complications such as pneumothorax or hemothorax in the first time, so as to minimize the risk of puncture injury in complex and dangerous parts, and achieve the purpose of improving the success rate and safety of thoracic biopsy surgery. Of course, blood or water can also be drawn, or drugs can be injected by adjusting the valve 8.

[0040] Example 2

[0041] Combination Figure 4 The structure of this embodiment is similar to that of embodiment 1, except that it further includes a second clamping ring 9. Figure 5-6, the bottom of the first snap ring 3 is inserted at the needle inlet 11, and the top is provided with an annular groove 32, and the bottom of the second snap ring 9 is provided with a protrusion 91 rotatably connected to the annular groove 32, that is, the second snap ring 9 can rotate relative to the first snap ring 3. The anti-reflux film 5 of the first snap ring 3 is arranged at the top of the first snap ring 3, and the anti-reflux film 5 of the second snap ring 9 is arranged at the bottom of the second snap ring 9, that is, the anti-reflux film 5 of the first snap ring 3 and the second snap ring 9 are close to each other and can rotate relative to each other. After completing a puncture sampling, by rotating the second snap ring 9, the puncture port of the anti-reflux film 5 of the second snap ring 9 is staggered with the puncture port of the anti-reflux film 5 of the first snap ring 3, which is more conducive to the isolation of gas. Preferably, a rotation mark is provided on the first snap ring 3 and the second snap ring 9, respectively. The rotation mark can be a rotating circular angle mark, or it can be just a shape mark such as two dots. After each puncture, the sheath 1 is rotated at a certain angle before puncturing again, so that the puncture openings on the anti-reflux film 5 of the first clamp ring 3 and the second clamp ring 9 are staggered, further improving the air tightness of the outer sheath 1, thereby reducing the probability of pneumothorax.

[0042] In summary, the utility model provides an anti-reflux film 5 at the needle entrance 11 of the outer sheath 1, allowing the coaxial needle core 2 and the puncture biopsy needle to repeatedly pass through the outer sheath 1, but preventing gas from entering the chest cavity, thereby reducing the occurrence of complications such as pneumothorax and hemothorax; at the same time, a branch tube 4 and a valve 8 are provided on the side of the outer sheath 1, through which artificial negative pressure can be formed by suction, and various complications such as pneumothorax and hemothorax can be discovered and dealt with at the first time, thereby minimizing the risk of puncture injuries in complex and dangerous areas and achieving the purpose of improving the success rate and safety of chest biopsy operations.

[0043] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux, comprising an outer sheath and a coaxial needle core, wherein both ends of the outer sheath are provided with a needle entry port and a needle exit port, respectively, wherein the diameter of the needle entry port is larger than the diameter of the needle exit port, and characterized in that: The needle entry port is provided with an anti-reflux film; The anti-reflux adhesive film is fixed on a clamping ring, and the clamping ring is detachably inserted at the needle entrance; The clasp comprises a first clasp and a second clasp, and the first clasp and / or the second clasp can rotate relative to the outer sheath; The anti-reflux adhesive films of the first clamping ring and the second clamping ring are close to each other up and down and can rotate relatively.

2. The coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux according to claim 1, characterized in that: The first clamping ring and the second clamping ring are respectively provided with rotation marks.

3. The coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux according to claim 1, characterized in that: One side of the outer sheath is also connected with a branch pipe, and a valve is arranged on the branch pipe.

4. The coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux according to claim 3, characterized in that: The valve is also provided with an air extraction interface and an injection interface.

5. The coaxial needle sheath system for lung puncture biopsy capable of preventing and treating air reflux according to claim 1, characterized in that: The anti-reflux adhesive film is made of silica gel.

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