Ultrasonic biopsy puncture needle with balloon

Abstract

The ultrasonic biopsy puncture needle with the balloon comprises a balloon assembly, a handle assembly and a needle tube assembly, the balloon assembly comprises the balloon, a communicating tube and a connector, the two ends of the communicating tube are connected with the balloon and the connector respectively, the handle assembly is connected with the handle assembly, and the needle tube assembly is connected with the handle assembly. The needle tube assembly is installed on the handle assembly, the communicating tube coaxially wraps the needle tube assembly, the connector is installed at the tail end of the handle assembly, and the balloon is arranged at the front end of the needle tube assembly, wraps the needle tube and is suitable for injecting fluid through the connector to enable the balloon to be filled so as to expand at a blocked part. According to the ultrasonic biopsy puncture needle with the balloon, the narrow trachea or bronchus is opened, a relatively stable and regular operation channel is opened, biopsy operation of the ultrasonic biopsy puncture needle with the balloon is facilitated, and the difficulty in needle insertion caused by airway deformation or obstruction of blockages is reduced.

Description

Technical Field

[0001] The invention relates to the field of ultrasonic biopsy needles, in particular to an ultrasonic biopsy puncture needle with a balloon. Background Art

[0002] In the field of modern medical diagnosis and treatment, biopsy puncture technology plays a vital role in obtaining diseased tissue samples for accurate pathological analysis. Ultrasound-guided biopsy puncture has the advantage of being able to display the puncture path and surrounding tissue structure in real time, greatly improving the accuracy and safety of puncture, and is widely used in the diagnosis of various diseases.

[0003] However, when facing some patients with congenital tracheal obstruction or bronchial obstruction caused by disease, the operation of traditional ultrasonic biopsy puncture needle faces many difficulties. Congenital tracheal or bronchial obstruction may be caused by congenital airway malformations, such as congenital developmental abnormalities such as tracheal stenosis and bronchial atresia. These abnormalities can cause the airway diameter to become smaller, the course to be twisted, or there are obstacles such as diaphragms, making it difficult for the ultrasonic biopsy puncture needle to reach the target lesion smoothly. From the perspective of operating space, the narrow airway greatly limits the range of motion of the puncture needle and increases the difficulty of adjusting the angle and position of the puncture needle. At the same time, due to congenital structural abnormalities, the anatomical relationship of the surrounding tissues is often more complex, and the display on the ultrasound image may not be clear enough, which further interferes with the precise positioning of the puncture needle.

[0004] Bronchial obstruction caused by diseases is common in clinical practice. For example, lung malignant tumors often invade the bronchi, causing tumor growth and lumen obstruction in the bronchi. On the one hand, the texture of tumor tissue is uneven, which may cause the puncture needle to be unevenly stressed and deviate during the puncture process, affecting the accuracy of the puncture. On the other hand, the tumor may be accompanied by inflammatory reactions, edema, and a rich vascular network around the tumor, which not only increases the risk of puncture bleeding, but also may cause the ultrasound image to become blurred due to the interference of these tissues, making it difficult for doctors to clearly distinguish the boundaries and internal structures of the tumor, and thus unable to accurately guide the puncture needle to the ideal biopsy site. In addition, when some chronic obstructive pulmonary diseases develop to the late stage, a large number of mucus plugs may appear to block the bronchi, which also greatly hinders ultrasound biopsy puncture. The presence of mucus plugs changes the acoustic environment in the bronchi, which may cause ultrasound signal attenuation or produce artifacts, making it difficult for doctors to accurately judge the depth and direction of puncture. Most of the existing ultrasound biopsy puncture needles are designed based on the normal airway anatomical structure. When faced with complex situations such as tracheobronchial obstruction, they lack targeted design and auxiliary functions. The length, curvature and needle tip design of traditional puncture needles are difficult to adapt to the special operating requirements in blocked airways. For example, in a curved and narrow blocked airway, a straight-rod puncture needle cannot flexibly adjust the angle to bypass obstacles; the sharpness and shape of the needle tip may not be able to effectively obtain sufficient and complete samples when passing through blockages and diseased tissues, and may also increase the risk of damage to surrounding normal tissues. Moreover, the existing puncture needles lack effective stabilization and guiding devices during operation. In the unstable environment of a blocked airway with limited operating space, the puncture needle is prone to shaking and deviating from the predetermined path, reducing the success rate and accuracy of the biopsy.

[0005] In summary, congenital tracheal obstruction or diseased bronchial obstruction poses many challenges to the operation of the ultrasonic biopsy puncture needle, seriously affecting the diagnosis and treatment of the disease for such patients. Summary of the invention

[0006] One advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon, which can expand at the blocked site to open the narrow trachea or bronchus, creating a relatively stable and regular operating channel, making it easier for the ultrasonic biopsy puncture needle with the balloon to perform biopsy operations and reducing the difficulty of needle insertion caused by airway deformation or obstruction.

[0007] Another advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon, which can relatively fix the surrounding tissue after expansion, reduce tissue displacement caused by respiratory movement or airway instability, help ultrasound to more accurately locate the lesion site, and improve the accuracy of biopsy needle puncture.

[0008] Another advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon, wherein the balloon forms a support in the airway, provides a guide for the biopsy needle, reduces the risk of lateral deviation of the puncture needle when passing through obstructions and complex airway structures, and ensures that the puncture path is closer to the preset path.

[0009] Another advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon, which moderately compresses the surrounding blood vessels and can effectively reduce the chance of bleeding due to damaged blood vessels during the puncture process, which is especially important for lesion areas with rich blood vessels or abnormal blood vessel distribution due to disease.

[0010] Another advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon. By controlling the expansion range and pressure of the balloon, the biopsy needle can be prevented from penetrating too deeply into surrounding normal tissues, thereby reducing unnecessary damage to normal tissues and improving the safety of the operation.

[0011] Another advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon, which, by means of the expansion function of the balloon, can adapt to and respond to blockages caused by different reasons such as tumor tissue, mucus plugs or congenital airway stenosis to a certain extent, thereby increasing the versatility of the instrument.

[0012] Another advantage of the present invention is that it provides an ultrasonic biopsy puncture needle with a balloon, which can form a specific image mark on the ultrasonic image, helping doctors to better identify the relative position relationship between the biopsy needle, the balloon and the surrounding tissue during the puncture process, further optimizing the operation process and improving the safety of the puncture.

[0013] According to another aspect of the present invention, the present invention further provides an ultrasonic biopsy puncture needle with a balloon, the ultrasonic biopsy puncture needle with a balloon comprising:

[0014] A balloon assembly, the balloon assembly comprising a balloon, a connecting tube and an interface, the two ends of the connecting tube are respectively connected to the balloon and the interface, so that the interface is connected to the balloon;

[0015] a handle assembly;

[0016] A needle core assembly, the needle core assembly is movably disposed inside the handle assembly;

[0017] A needle tube assembly, the needle tube assembly includes a needle tube joint part and a needle tube, the needle tube is fixed to the needle tube joint part, the needle tube joint part is installed at the rear end of the handle assembly, the needle tube is coaxially installed in the center of the needle core assembly and extends out of the handle assembly, the connecting tube is coaxially covered on the needle tube, the interface is installed at the rear end of the handle assembly close to the needle tube joint part, the balloon is arranged at the front end of the needle tube away from the needle tube joint part and covers the needle tube, and is suitable for injecting fluid through the interface to fill the balloon.

[0018] According to one embodiment of the present invention, the interface is a Luer interface.

[0019] According to one embodiment of the present invention, the handle assembly includes a conical joint, a front handle, a regulator front plug, a safety ring, a handle front plug and a rear handle, the safety ring is arranged between the front handle and the rear handle, and the regulator front plug is installed between the front handle and the safety ring, the handle front plug is installed between the safety ring and the rear handle, the conical joint is arranged at the front end of the front handle away from the regulator front plug, the needle core assembly extends from the front handle to the rear handle, the needle tube joint part is detachably fixed to the tail end of the rear handle, and the needle tube extends out of the conical joint.

[0020] According to one embodiment of the present invention, the rear end handle further has an interface mounting hole, the interface mounting hole is arranged on the side of the tail section of the rear end handle, and the interface is installed in the interface mounting hole.

[0021] According to one embodiment of the present invention, the needle core assembly includes a core rod, a tail end core rod head and a front end core rod head, the front end core rod head is installed at the front end of the core rod, the tail end core rod head is installed at the tail end of the core rod, the front end core rod head is located at the front end handle, the tail end core rod head is located at the rear end handle, the core rod is suitable for sliding in the front end handle and the rear end handle, the safety ring is suitable for moving on the core rod, and the needle tube passes through the tail end core rod head and the front end core rod head.

[0022] According to one embodiment of the present invention, the front handle also has a first threaded hole, the safety ring has a second threaded hole, and the handle assembly also includes a first fixing screw and a second fixing screw. The first fixing screw can be rotatably installed in the first threaded hole and fix the core rod when screwed in. The second fixing screw can be rotatably installed in the second threaded hole and fix the core rod when screwed in.

[0023] According to one embodiment of the present invention, the needle tube assembly further includes an inner core wire, and the inner core wire is disposed inside the needle tube.

[0024] According to an embodiment of the present invention, the core rod further has a limiting ring, which is arranged around the circumference of the core rod and is arranged between the front plug of the regulator and the safety ring.

[0025] According to an embodiment of the present invention, the fluid used by the interface to inflate the balloon may be one of gas and liquid.

[0026] According to another aspect of the present invention, the present invention further provides an ultrasonic biopsy puncture needle with a balloon, the ultrasonic biopsy puncture needle with a balloon comprising:

[0027] A balloon assembly, the balloon assembly comprising a balloon, a connecting tube and an interface, the two ends of the connecting tube are respectively connected to the balloon and the interface, so that the interface is connected to the balloon;

[0028] A handle assembly, the handle assembly comprising a conical joint, a front handle, a regulator front plug, a safety ring, a handle front plug and a rear handle, the safety ring is arranged between the front handle and the rear handle, the regulator front plug is installed between the front handle and the safety ring, the handle front plug is installed between the safety ring and the rear handle, and the conical joint is arranged at the front end of the front handle away from the regulator front plug;

[0029] A needle core assembly, the needle core assembly includes a core rod and a tail end core rod cover and a front end core rod cover, the front end core rod cover is installed at the front end of the core rod, the tail end core rod cover is installed at the tail end of the core rod, the front end core rod cover is located at the front end handle, and the tail end core rod cover is located at the rear end handle, the core rod is suitable for sliding in the front end handle and the rear end handle, the safety ring is suitable for moving on the core rod, the front end handle also has a first threaded hole, the safety ring has a second threaded hole, the handle assembly also includes a first fixing screw and a second fixing screw, the first fixing screw can be rotatably installed in the first threaded hole and fix the core rod when screwed in, the second fixing screw can be rotatably installed in the second threaded hole and fix the core rod when screwed in; and

[0030] A needle tube assembly, which includes a needle tube joint part and a needle tube, the needle tube is fixed to the needle tube joint part, and the needle tube joint part is detachably installed at the tail end of the rear end handle, the needle tube passes through the tail end core rod head and the front end core rod head, and extends out of the front end handle through the conical joint, the connecting tube coaxially covers the needle tube, the interface is installed at the tail end of the rear end handle close to the needle tube joint part, the balloon is arranged at the front end of the needle tube away from the needle tube joint part and covers the needle tube, and is suitable for injecting fluid through the interface to fill the balloon.

[0031] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The figure is a schematic diagram of the overall structure of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention.

[0033] Figure 2 1 is an overall cross-sectional view of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention.

[0034] Figure 3 It is a partial cross-sectional view of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention, illustrating an enlarged partial cross-sectional view of the interface position.

[0035] Figure 4 It is a partial cross-sectional view of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention, illustrating an enlarged partial cross-sectional view of the position of the balloon.

[0036] Figure 5 It is a schematic cross-sectional structural diagram of the balloon assembly and the needle tube assembly of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention.

[0037] Figure 6 It is a schematic cross-sectional structural diagram of the needle core assembly of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention.

[0038] Figure 7 It is a schematic cross-sectional structural diagram of the handle assembly of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention.

[0039] Figure 8 The figure is a schematic diagram of the working state of an ultrasonic biopsy puncture needle with a balloon according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0041] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0042] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0043] Reference Figure 1 To Attachment Figure 8 As shown in FIG. 1 , the ultrasonic biopsy puncture needle 1 with a balloon according to the present invention is schematically shown. Figure 1 and attached Figure 4 As shown, the ultrasonic biopsy puncture needle 1 with a balloon includes a balloon assembly 10, a handle assembly 20, a needle core assembly 30 and a needle tube assembly 40, the needle core assembly 30 is arranged in the handle assembly 20, the needle tube assembly 40 is installed through the handle assembly 20 and passes through the needle core assembly 30, the balloon assembly 10 includes a balloon 11 and a connecting tube 12 and an interface 13, the balloon 11 and the interface 13 are connected to both ends of the connecting tube 12, and the interface 13 is kept connected to the balloon 11, the interface 13 is installed at the rear end of the handle assembly 20, the connecting tube 12 is installed on the needle tube assembly 40, and the balloon 11 is located at the distal end of the needle tube assembly 40, that is, the end away from the handle assembly.

[0044] In particular, fluid can be injected through the interface 13, and the fluid is filled into the balloon 11 through the connecting tube 12, so that when the ultrasonic biopsy puncture needle 1 with the balloon enters the patient's bronchus, the balloon 11 can expand at the blocked part, open the patient's narrow trachea or bronchus, and then open up a relatively stable and regular operation channel, which is convenient for the ultrasonic biopsy puncture needle 1 with the balloon to perform biopsy operations, and reduce the difficulty of needle insertion caused by airway deformation or obstruction. In addition, the balloon 11 after expansion can make the surrounding tissue relatively fixed, reduce tissue displacement caused by respiratory movement or airway instability, help to more accurately locate the lesion under ultrasonic detection, and improve the accuracy of the ultrasonic biopsy puncture needle 1 with the balloon. Furthermore, the balloon 11 forms a support in the airway, provides a guiding effect for the ultrasonic biopsy puncture needle 1 with the balloon, reduces the risk of lateral deviation of the ultrasonic biopsy puncture needle 1 with the balloon when passing through obstructions and complex airway structures, and ensures that the puncture path is closer to the preset path. Furthermore, the balloon 11 can moderately compress the surrounding blood vessels, and can effectively reduce the chance of bleeding caused by damaged blood vessels during the puncture process, which is especially important for lesion areas with rich blood vessels or abnormal blood vessel distribution caused by diseases. By controlling the expansion range and pressure of the balloon 11, the ultrasonic biopsy puncture needle 1 with the balloon can be prevented from excessively penetrating into the surrounding normal tissues, reducing unnecessary damage to normal tissues and improving the safety of the operation. In addition, the balloon 11 can form a specific image mark on the ultrasonic image, which helps doctors better identify the relative position relationship between the ultrasonic biopsy puncture needle 1 with the balloon and the surrounding tissues during the puncture process, further optimizing the puncture operation process and improving the safety of the puncture process.

[0045] For details, refer to the attached Figure 5 To Attachment Figure 7 As shown, the handle assembly 20 further includes a conical joint 21, a front end handle 22, a regulator front plug 23, a safety ring 24, a handle front plug 25 and a rear end handle 26. The safety ring 24 is arranged between the front end handle 22 and the rear end handle 25, and the regulator front plug 23 is installed between the front end handle 22 and the safety ring 24, and the handle front plug 25 is installed between the rear end handle 26 and the safety ring 24. The conical joint 21 is arranged at the front end of the front end handle 22, that is, the end away from the safety ring 24. In other words, when the handle assembly 20 is arranged horizontally, the order of parts from left to right is the conical joint 21, the front end handle 22, the regulator front plug 23, the safety ring 24, the handle front plug 25 and the rear end handle 26.

[0046] The front handle 22 is hollow inside, and its two ends are closed by the conical joint 21 and the regulator front plug 23. The regulator front plug 23 contacts the safety ring 24. The inner diameter of the safety ring 24 is slightly smaller than the diameter of the hollow part inside the front handle 22. The inner diameter of the regulator front plug 23 is also consistent with the inner diameter of the safety ring 24. The handle front plug 25 is provided at the position where the rear handle 26 contacts the safety ring 24. The inner diameter of the handle front plug 25 is also consistent with the inner diameter of the safety ring 24. The rear handle 26 is also hollow inside, and its diameter is consistent with the diameter of the hollow part inside the front handle 22, that is, slightly larger than the diameter of the handle front plug 26.

[0047] The needle core assembly 30 further includes a core rod 31, a tail end core rod head 32 and a front end core rod head 33. The front end core rod head 33 is installed at the front end of the core rod 31, and the tail end core rod head 32 is installed at the tail end of the core rod 31, so as to form a regular cylindrical shape. The diameter of the needle core assembly 30 is consistent with the diameter of the safety ring 24. That is to say, when the needle core assembly 30 is installed inside the handle assembly 20, the core rod 31 is tightly matched with the regulator front plug 23 and the handle front plug 25, and the safety ring 24 can move on the core rod 31. The tail end core rod head 32 is arranged in the hollow interior of the rear end handle 26, and the front end core rod head 33 is arranged in the hollow interior of the front end handle 22, so that the core rod 31 can move relative to the handle assembly 20. Particularly, a limiting ring 311 is provided around the core rod 31 , and the limiting ring 311 is provided around the core rod 31 and is located between the regulator front plug 23 and the safety ring 24 , so as to limit the movement of the core rod 31 toward the rear end handle 26 .

[0048] The handle assembly 20 also has a first threaded hole 281 and a second threaded hole 282. The first threaded hole 281 is arranged at a position near the regulator front plug 23 on the side of the front handle 22, and the second threaded hole 282 is arranged on the side of the safety ring 24. The first threaded hole 281 and the second threaded hole 282 are arranged side by side. The handle assembly 20 also includes a first fixing screw 271 and a second fixing screw 272. The first fixing screw 271 is rotatably mounted on the first threaded hole 281, and when screwed in, the nail column can be pressed against the core rod 31 to limit the further movement of the core rod 31, that is, to limit the relative movement between the core rod 31 and the front handle 22. The second fixing screw 272 is rotatably mounted on the second threaded hole 282, and when screwed in, the nail column can be pressed against the core rod 31 to limit the further movement of the core rod 31, that is, to limit the relative movement between the safety ring 24 and the core rod 31.

[0049] The rear end handle 26 also has an interface mounting hole 261, which is located at the side tail end of the rear end handle 26 and is connected to the internal space of the rear end handle 26. In other words, the interface mounting hole 261 is located above the space between the tail end core rod head 32 and the tail of the rear end handle 26.

[0050] The needle tube assembly 40 further includes a needle tube joint portion 41 and a needle tube 42, the needle tube 42 is installed on the needle tube joint portion 41, the needle tube joint portion 41 is detachably installed on the tail end of the rear end handle 26, and the needle tube 42 is coaxially installed in the center of the needle core assembly 30, that is, it is installed from the center position of the tail end core rod head 32 to the front end core rod head 33, and continues to pass through the conical joint 21, thereby extending out of the handle assembly 20.

[0051] The interface 13 is installed in the interface installation hole 261, the connecting tube 12 coaxially covers the needle tube 42 and extends to the position of the balloon 11, the balloon 11 is set at the front end of the needle tube 42 away from the needle tube joint 41, and the balloon 11 covers a part of the front section of the needle tube 42, but does not completely cover the tip of the needle tube 42, that is, the position of the tip of the needle tube 42 closer to the back section, so as to ensure both the puncture efficiency and the safety during the puncture. The fluid is injected through the interface 13, and the fluid is filled into the balloon 11 through the connecting tube 12, so that when the ultrasonic biopsy puncture needle 1 with the balloon enters the patient's bronchus, the balloon 11 can expand at the blocked part, open the patient's narrow trachea or bronchus, and then open up a relatively stable and regular operation channel, which is convenient for the ultrasonic biopsy puncture needle 1 with the balloon to perform biopsy operations and reduce the difficulty of needle insertion caused by airway deformation or obstruction. In addition, the balloon 11 after expansion can make the surrounding tissue relatively fixed, reduce tissue displacement caused by respiratory movement or airway instability, help to more accurately locate the lesion under ultrasound detection, and improve the accuracy of the ultrasonic biopsy puncture needle 1 with a balloon. Further, the balloon 11 forms a support in the airway, provides a guiding effect for the ultrasonic biopsy puncture needle 1 with a balloon, reduces the risk of lateral deviation of the ultrasonic biopsy puncture needle 1 with a balloon when passing through obstructions and complex airway structures, and ensures that the puncture path is closer to the preset path. Furthermore, the balloon 11 can moderately compress the surrounding blood vessels, and can effectively reduce the chance of bleeding caused by damage to blood vessels during the puncture process, which is especially important for lesion areas with rich blood vessels or abnormal blood vessel distribution caused by diseases. By controlling the expansion range and pressure of the balloon 11, the ultrasonic biopsy puncture needle 1 with a balloon can be prevented from excessively penetrating into the surrounding normal tissues, reducing unnecessary damage to normal tissues and improving the safety of the operation. In addition, the balloon 11 can form a specific image mark on the ultrasonic image, which helps the doctor to better identify the relative position relationship between the ultrasonic biopsy puncture needle 1 with the balloon and the surrounding tissue during the puncture process, further optimize the puncture operation process and improve the safety during the puncture process.

[0052] The needle tube assembly 40 also includes an inner core wire 43, which is arranged inside the needle tube 42. The inner core wire 43 is used to open an initial channel to prevent surrounding tissue from entering the internal channel of the needle tube 42 under pressure, thereby avoiding tissue blocking the needle tube 42.

[0053] In particular, the interface 13 is a Luer interface. The interface 13 using the Luer interface can be adapted to a variety of medical devices. The versatility of the Luer interface allows medical staff to use medical devices of different brands or types without worrying about interface mismatches, greatly improving the compatibility and interchangeability between devices. In complex medical device systems, the interface 13 using the Luer interface is conducive to the integration of different components. The interface 13 using the Luer interface design can achieve a tight connection. The Luer interface usually uses an inner and outer cone fit. When two components with a Luer interface are connected, the tight fit between the inner cone and the outer cone can effectively prevent liquid leakage. The Luer interface can withstand a certain pressure. When pressure needs to be applied to the balloon 11, the use of the Luer interface for fluid transmission can ensure that the balloon 11 is stably filled. At the same time, the Luer interface is easy to plug and unplug. Medical staff can easily connect or separate the two parts through the Luer interface without complicated tools or special operating skills. In addition, the visibility of the Luer interface is very good. The connection method of the Luer interface allows medical staff to intuitively see whether the interface is correctly connected during the connection process. Its cone-matching structure can clearly see the fit of the inner and outer cones during connection, which helps to ensure the accuracy of the connection. Moreover, in the transparent Luer interface parts, the flow of liquid at the interface can also be observed, which is convenient for medical staff to find problems in time, such as whether there are bubbles or blockages.

[0054] Reference Figure 8 The figure shows a schematic diagram of the working state of the ultrasonic biopsy puncture needle with a balloon 1. It is understandable that when the ultrasonic biopsy puncture needle with a balloon 1 enters between the narrow bronchus 2, the fluid is injected into the balloon 11 through the interface 13 by the syringe 3, and the balloon 11 begins to fill and expand to prop up the narrow wall of the bronchus 2, thereby opening up a relatively stable and regular operation channel, making it convenient for the ultrasonic biopsy puncture needle with a balloon 1 to perform a biopsy operation and reducing the difficulty of needle insertion caused by airway deformation or obstruction.

[0055] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. An ultrasonic biopsy puncture needle with a balloon, characterized in that: include: A balloon assembly, the balloon assembly comprising a balloon, a connecting tube and an interface, the two ends of the connecting tube are respectively connected to the balloon and the interface, so that the interface is connected to the balloon; a handle assembly; A needle core assembly, the needle core assembly is movably disposed inside the handle assembly; A needle tube assembly, the needle tube assembly includes a needle tube joint part and a needle tube, the needle tube is fixed to the needle tube joint part, the needle tube joint part is installed at the rear end of the handle assembly, the needle tube is coaxially installed in the center of the needle core assembly and extends out of the handle assembly, the connecting tube is coaxially covered on the needle tube, the interface is installed at the rear end of the handle assembly close to the needle tube joint part, the balloon is arranged at the front end of the needle tube away from the needle tube joint part and covers the needle tube, and is suitable for injecting fluid through the interface to fill the balloon.

2. An ultrasonic biopsy puncture needle with a balloon according to claim 1, wherein the interface is a Luer interface.

3. An ultrasonic biopsy puncture needle with a balloon according to claim 1, wherein the handle assembly comprises a conical joint, a front handle, a regulator front plug, a safety ring, a handle front plug and a rear handle, the safety ring is arranged between the front handle and the rear handle, and the regulator front plug is installed between the front handle and the safety ring, the handle front plug is installed between the safety ring and the rear handle, the conical joint is arranged at the front end of the front handle away from the regulator front plug, the needle core assembly extends from the front handle to the rear handle, the needle tube joint part is detachably fixed to the tail end of the rear handle, and the needle tube extends out of the conical joint.

4. The ultrasonic biopsy puncture needle with a balloon according to claim 3, wherein the rear end handle also has an interface mounting hole, the interface mounting hole is arranged on the side of the tail section of the rear end handle, and the interface is mounted on the interface mounting hole.

5. An ultrasonic biopsy puncture needle with a balloon according to claim 4, wherein the needle core assembly includes a core rod, a tail core rod head and a front core rod head, the front core rod head is installed at the front end of the core rod, the tail core rod head is installed at the tail end of the core rod, the front core rod head is located at the front handle, the tail core rod head is located at the rear handle, the core rod is suitable for sliding in the front handle and the rear handle, the safety ring is suitable for moving on the core rod, and the needle tube passes through the tail core rod head and the front core rod head.

6. An ultrasonic biopsy puncture needle with a balloon according to claim 5, wherein the front handle also has a first threaded hole, the safety ring has a second threaded hole, and the handle assembly also includes a first fixing screw and a second fixing screw, the first fixing screw can be rotatably installed in the first threaded hole and fix the core rod when screwed in, and the second fixing screw can be rotatably installed in the second threaded hole and fix the core rod when screwed in.

7. The ultrasonic biopsy puncture needle with a balloon according to claim 1, wherein the needle tube assembly further comprises an inner core wire, and the inner core wire is disposed inside the needle tube.

8. The ultrasonic biopsy puncture needle with a balloon according to claim 5, wherein the core rod further has a limiting ring, the limiting ring is arranged around the circumference of the core rod, and the limiting ring is arranged between the front plug of the regulator and the safety ring.

9. The ultrasonic biopsy puncture needle with a balloon according to any one of claims 1 to 8, wherein the fluid used by the interface to fill the balloon can be one of gas and liquid.

10. An ultrasonic biopsy puncture needle with a balloon, characterized in that: include: A balloon assembly, the balloon assembly comprising a balloon, a connecting tube and an interface, the two ends of the connecting tube are respectively connected to the balloon and the interface, so that the interface is connected to the balloon; A handle assembly, the handle assembly comprising a conical joint, a front handle, a regulator front plug, a safety ring, a handle front plug and a rear handle, the safety ring is arranged between the front handle and the rear handle, the regulator front plug is installed between the front handle and the safety ring, the handle front plug is installed between the safety ring and the rear handle, and the conical joint is arranged at the front end of the front handle away from the regulator front plug; A needle core assembly, the needle core assembly includes a core rod and a tail end core rod cover and a front end core rod cover, the front end core rod cover is installed at the front end of the core rod, the tail end core rod cover is installed at the tail end of the core rod, the front end core rod cover is located at the front end handle, and the tail end core rod cover is located at the rear end handle, the core rod is suitable for sliding in the front end handle and the rear end handle, the safety ring is suitable for moving on the core rod, the front end handle also has a first threaded hole, the safety ring has a second threaded hole, the handle assembly also includes a first fixing screw and a second fixing screw, the first fixing screw can be rotatably installed in the first threaded hole and fix the core rod when screwed in, the second fixing screw can be rotatably installed in the second threaded hole and fix the core rod when screwed in; and A needle tube assembly, which includes a needle tube joint part and a needle tube, the needle tube is fixed to the needle tube joint part, and the needle tube joint part is detachably installed at the tail end of the rear end handle, the needle tube passes through the tail end core rod head and the front end core rod head, and extends out of the front end handle through the conical joint, the connecting tube coaxially covers the needle tube, the interface is installed at the tail end of the rear end handle close to the needle tube joint part, the balloon is arranged at the front end of the needle tube away from the needle tube joint part and covers the needle tube, and is suitable for injecting fluid through the interface to fill the balloon.

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