Visual puncture needle system with protection function

Abstract

The present application is a visual puncture needle system with protection function, which comprises a puncture needle tube, a tube body for human body puncture; a needle tube connector connected to the rear end of the puncture needle tube for the operator to hold; an image acquisition mechanism connected to the needle tube connector; and a bounce core mechanism connected to the needle tube connector. Compared with the prior art, the present application has the beneficial effects of: the simultaneous combination of the image acquisition mechanism and the bounce core mechanism; the bounce core mechanism can ensure that the operator can timely understand the puncture situation during the puncture process, and stop the puncture action in time after completing the puncture to avoid injuring other tissues; the image acquisition mechanism can real-time understand the situation in the patient's body, and double guarantee improves the safety of the operation.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a visual puncture needle system with protective function. Background Technology

[0002] Fluid accumulation in the third space of the body, such as the thoracic and abdominal cavities and joint cavities, is often caused by inflammation or certain diseases. Large amounts of fluid can cause symptoms such as difficulty breathing, abdominal distension, and limited joint movement. In such cases, doctors often use a puncture needle to enter these cavities and aspirate the fluid for treatment. When the fluid accumulation is small but may be accompanied by infection, internal bleeding, or other underlying conditions, doctors often need to aspirate some fluid for diagnostic purposes. However, currently, doctors rely entirely on experience and touch during punctures, making it impossible to completely avoid the needle tip piercing tissues such as the intestines, lungs, or major blood vessels, which can cause serious collateral damage. Furthermore, if the fluid is located in deep grooves, doctors cannot accurately locate the needle tip during blind punctures, making it impossible to aspirate the fluid and thus hindering diagnosis, resulting in a high probability of false negatives. Summary of the Invention

[0003] This invention provides a visual puncture needle system with protective functions. It has the following objectives: by adding an image acquisition mechanism and a spring-loaded core mechanism, it can ensure that the operator can understand the puncture situation in a timely manner during the puncture process, and stop the puncture action in time after the puncture is completed to avoid accidental damage to other tissues; at the same time, after the puncture is completed, the image acquisition mechanism can be replaced to understand the patient's internal condition in real time.

[0004] This invention is achieved through the following technical solution: a visual puncture needle system with protective function, comprising...

[0005] Puncture needle 1, a tube used for human puncture;

[0006] Needle connector 2 is connected to the rear end of puncture needle 1 and is used by the operator to hold it.

[0007] The image acquisition mechanism is detachably connected to the needle connector 2; and

[0008] The bouncing core mechanism is detachably connected to the needle tube connector 2;

[0009] The image acquisition mechanism includes

[0010] The first hand handle 31 is detachably connected to the rear end of the needle connector 2.

[0011] The connecting tube 32 is located inside the puncture needle tube 1. The front end of the connecting tube 32 is equipped with a camera 33, and the rear end of the connecting tube 32 is connected to the first hand handle 31.

[0012] The light source structure is arranged around the camera 33 to provide light to the camera;

[0013] The control circuit 34 is located in the cavity provided in the first hand handle 31 and is connected to the camera 33 and the light source structure.

[0014] The human-computer interaction mechanism is connected to the control circuit and includes at least a display 35, and one or more of the following: a light source button, a photo button 361, and a video recording button 362.

[0015] The bouncing core mechanism includes

[0016] The second handle 41 is detachably connected to the rear end of the needle connector 2.

[0017] The bouncing core 42 is located inside the puncture needle tube 1, with its front end extending out of the front end of the puncture needle tube 1 and the front end head being blunted, and its rear end extending into the second hand handle 41.

[0018] The reset structure 3 is located at the rear end of the bouncing core 42 and is disposed within the second hand handle 41;

[0019] The reset structure 3 ensures that when the bouncing core 42 is subjected to an external force and moves backward, a forward force is applied to the bouncing core 42 in real time, so that after the external force is removed, the front end of the bouncing core 42 extends out of the puncture needle tube 1.

[0020] Compared with previous technologies, the beneficial effects of the present invention are as follows:

[0021] 1. Simultaneously equipped with an image acquisition mechanism and a bouncing core mechanism. The bouncing core mechanism ensures that the surgeon can monitor the puncture process in a timely manner and stop the puncture immediately after completion to avoid accidental damage to other tissues; the image acquisition mechanism allows for real-time monitoring of the patient's internal condition, providing dual protection and improving the safety of the surgery.

[0022] 2. The handheld propulsion method of the image acquisition mechanism improves the operator's operational flexibility.

[0023] 3. A three-way connector is used, and the side support of the three-way connector is used in conjunction with the sampling instrument to extract liquid or insert it into a small-sized biopsy instrument.

[0024] 4. Adding a positioning seat to the bouncing core can improve the connection strength between the bouncing core and the reset structure. In addition, by adding color partitions to the positioning seat, along with an observation window, it is possible to understand the current movement trajectory of the bouncing core and determine whether the front end of the bouncing core extends out of the puncture needle tube.

[0025] 5. The design of the end cap and Luer connector is mainly to improve the connection strength and sealing performance when the tee connector is connected to other equipment.

[0026] 6. The length of the portion of the puncture needle extending from the front end of the bouncing core is 5~20mm. This length is determined according to the type of surgery and can prevent the bouncing core from touching other tissues when it rebounds. Attached Figure Description

[0027] Figure 1 A schematic diagram of the overall structure for the connection between the puncture needle and the image acquisition mechanism;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure after removing the monitor;

[0029] Figure 3 A schematic diagram of the image acquisition mechanism after removing the first hand handle;

[0030] Figure 4 for Figure 3 A schematic diagram of the structure after removing the display;

[0031] Figure 5 This is a cross-sectional view of the sliding carrier and connecting pipe;

[0032] Figure 6 for Figure 5 Enlarged view of point A;

[0033] Figure 7 This is a diagram showing the fit between the ball bearing structure and the slot.

[0034] Figure 8 In order to be in Figure 7 Diagram showing the fit between the ball structure and the slot after the sliding carrier has slid a certain distance on the base.

[0035] Figure 9 A schematic diagram of the overall structure for the connection between the puncture needle and the bouncing core mechanism;

[0036] Figure 10 for Figure 9 A sectional view (side support joints omitted).

[0037] Figure 11 This is a cross-sectional view of the positioning seat when the bouncing core is not retracted.

[0038] Figure 12 This is a schematic diagram of the structure of the bouncing core before it retracts.

[0039] Figure 13 This is a cross-sectional view of the positioning seat after the bouncing core has retracted.

[0040] Figure 14 This is a schematic diagram of the structure of the bouncing core after it has contracted.

[0041] Labeling Explanation: 1. Puncture needle tube; 2. Needle tube connector; 21. Front support connector; 22. Rear support connector; 23. Side support connector; 31. First hand handle; 311. Sliding carrier; 312. Guide hole; 313. Control lever; 314. Ball bearing structure; 315. Slot; 32. Connecting tube; 33. Camera; 34. Control circuit; 35. Display; 361. Photo button; 362. Video button; 371. Light-emitting element; 372. Light guiding material; 41. Second hand handle; 42. Bounce core; 43. Reset structure; 44. Positioning seat; 441. Red area; 442. Green area; 45. Observation window; 5. End cap; 6. Luer connector. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings:

[0043] In the description of this invention, it should be understood that the terms "front", "rear", tail, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0044] like Figure 1-14 As shown: This invention is a visual puncture needle system with protective function, which includes...

[0045] Puncture needle 1, a tube used for human puncture;

[0046] Needle connector 2 is connected to the rear end of puncture needle 1 and is used by the operator to hold it.

[0047] The image acquisition mechanism is detachably connected to the needle connector 2; and

[0048] The bouncing core mechanism is detachably connected to the needle tube connector 2;

[0049] The image acquisition mechanism includes

[0050] The first hand handle 31 is detachably connected to the rear end of the needle connector 2.

[0051] The connecting tube 32 is located inside the puncture needle tube 1. The front end of the connecting tube 32 is equipped with a camera 33, and the rear end of the connecting tube 32 is connected to the first hand handle 31.

[0052] The light source structure is arranged around the camera 33 to provide light to the camera;

[0053] The control circuit 34 is located in the cavity provided in the first hand handle 31 and is connected to the camera 33 and the light source structure.

[0054] The human-computer interaction mechanism is connected to the control circuit and includes at least a display 35, and one or more of the following: a light source button, a photo button 361, and a video recording button 362.

[0055] The bouncing core mechanism includes

[0056] The second handle 41 is detachably connected to the rear end of the needle connector 2.

[0057] The bouncing core 42 is located inside the puncture needle tube 1, with its front end extending out of the front end of the puncture needle tube 1 and the front end head being blunted, and its rear end extending into the second hand handle 41.

[0058] The reset structure 3 is located at the rear end of the bouncing core 42 and is disposed within the second hand handle 41;

[0059] The reset structure 3 ensures that when the bouncing core 42 is subjected to an external force and moves backward, a forward force is applied to the bouncing core 42 in real time, so that after the external force is removed, the front end of the bouncing core 42 extends out of the puncture needle tube 1.

[0060] In this invention, the connecting tube 32 is primarily made of a rigid tube. It works in conjunction with the second hand handle 41 for easy guidance and reduces friction with the puncture needle 1 when it can move back and forth, improving the operator's feel. The control circuit here generally refers to a circuit board. The camera is connected to the circuit board via wires, and the light source button, photo button 361, and video button 362 are also electrically connected to the circuit board. Additionally, the display 35 is also connected to the circuit board via wires. The operator can turn the light source on and off using the light source button, and take photos and record videos using the photo button 361 and video button 362, respectively.

[0061] The first hand handle 31 here can be formed by the upper cover and the lower cover being interlocked together, which facilitates the installation of the internal structure of the first hand handle 31. One side of the upper cover and the lower cover are hinged together, and the other side of the upper cover and the lower cover are provided with a locking structure that cooperates with each other.

[0062] The human-computer interaction mechanism is mainly for the operator to receive information and control the device. Here, the operator views the information collected by the camera through the display 35, and controls or collects information by setting one or more of the following buttons: light source button 361, photo button 361, and video recording button 362.

[0063] Furthermore, in this invention, the outer diameter of the bouncing core is smaller than the inner diameter of the puncture needle tube, ensuring that the bouncing core does not rub against the puncture needle tube during its forward and backward movement, thus guaranteeing smooth sliding. The front end of the bouncing core is blunted to ensure that when the bouncing core is used for puncture, it touches the tissue to be punctured but does not puncture it; and when its forward movement is obstructed by the tissue to be punctured, it will retract back into the puncture needle tube, ensuring that the puncture is performed by the puncture needle tube. When the puncture needle tube penetrates the tissue to be punctured, the bouncing core will move forward and rebound under the action of the reset structure, thereby generating a slight vibration, reminding the operator to complete the puncture of the tissue to be punctured and to stop further forward puncture. Because the front end of the bouncing core is blunted, even if the bouncing core rebounds forward and encounters other tissues, it will not cause damage to those tissues. It should be noted that, generally, the length of the portion of the bouncing core 3 extending out of the puncture needle tube 1 is 5~20mm. The extent of extension can be selected or designed according to the type of surgery.

[0064] To improve the flexibility of the camera, a sliding carrier 311 is also provided in the cavity of the first hand handle 31. The sliding carrier 311 can slide back and forth in the cavity of the first hand handle 31. The control circuit 34 is installed on the sliding carrier 311. A guide hole 312 extending in the front and back direction is provided on the first hand handle 31. A control rod 313 extending out of the guide hole 312 is provided on the sliding carrier 311.

[0065] The tail end of the connecting tube 32 is fixedly connected to the sliding carrier 311, so that the connecting tube 32 can move back and forth with the sliding carrier 311.

[0066] The operator controls the lever 313 to move the connecting tube 32 back and forth, thereby moving the camera back and forth to the designated position.

[0067] like Figure 3-8As shown: A slot 315 is provided on the inner wall of the cavity of the first hand handle 31, and a ball structure 314 that cooperates with the ball structure is provided on the sliding carrier 311. When the ball structure and the slot are engaged, the sliding carrier 311 and the first hand handle 31 are fixed, and when the sliding carrier 311 is subjected to an external force greater than a threshold, the sliding carrier 311 slides forward or backward. Considering that the operator needs to perform other operations, a fixing structure between the first hand handle 31 and the sliding carrier 311 is added. When the ball structure and the slot are engaged and there is no sufficient external force, the first hand handle 31 and the sliding carrier 311 are relatively fixed. It should be noted that there can be several slots 315 arranged from front to back (i.e., one ball structure is equipped with multiple slots, and the distance between any adjacent slots is 5mm). This can achieve multi-level fixation and ensure that a clicking positioning sound is made during the pushing process. The maximum forward distance of the connecting tube 32 is a distance where the front end of the connecting tube 32 is 50mm longer than the front end of the puncture needle. The ball bearing structure here is a conventional spring and a ball bearing located at the end of the spring. The spring always pushes the ball bearing into the slot 315.

[0068] like Figure 5 , 6 As shown, the light source structure includes a light-emitting element 371 and several light-guiding materials 372. The light-emitting element is mounted on the control circuit 34 or the sliding carrier 311. The light-guiding materials are located in the connecting tube 32, with the front end extending to the outer periphery of the camera and the rear end extending to the vicinity of the light-emitting element. Since conventional light source structures are relatively large, directly installing them near the camera would either obstruct the camera's view or require increasing the diameter of the connecting tube 32 to accommodate the light source structure. Therefore, this invention uses light-guiding materials 372 to guide the light-emitting elements located elsewhere to the vicinity of the camera for illumination. These light-guiding materials 372 are generally light beams or light guide filaments with a very small diameter. Illumination can be achieved by circling the outer periphery of the camera with a light guide filament. Of course, if the camera is small enough and the gap between the camera and the connecting tube 32 is sufficient, LED lights can be directly installed on the camera.

[0069] The tail of the bouncing core 42 is fixedly provided with a positioning seat 44, and the rear end of the positioning seat 44 is fixedly connected to the reset structure 3. The rear end of the reset structure 3 is connected to the second hand handle 41.

[0070] like Figure 10-14 As shown: In this invention, the second hand handle has a cavity, into which the tail of the bouncing core 3 extends. The positioning seat and the reset structure are both located in the cavity. To facilitate installation, a channel is provided at the rear end of the second hand handle, and a fixing seat is sealed on the channel.

[0071] The positioning seat 44 also serves as a limit; that is, a channel is provided in the second hand handle to accommodate the forward and backward sliding of the positioning seat 44. Only a small hole is provided at the front end of the channel to allow the bouncing core to pass through. When the positioning seat 44 moves forward under the action of the reset structure, the front end of the positioning seat 44 cannot pass through the small hole, thus preventing it from moving forward. Since the positioning seat and the bouncing core are fixedly connected, the limit of the positioning seat's forward movement is the limit of the bouncing core's forward movement.

[0072] like Figure 11-14 As shown: The positioning base 44 is divided into a red area 441 at the front and a green area 442 at the rear according to color. An observation window 45 is provided on the second hand handle 41. The observation window can display red or green according to the position of the positioning base 44 as it slides back and forth.

[0073] Although the bouncing core vibrates when it bounces forward to reset, a color-coding function is added for safety. The second handpiece 41 has an observation window; during the puncture process, the current puncture status can be determined by observing the different colors of the positioning seat seen through the window. The positioning seat is divided into a front red area 441 and a rear green area 442. The green area is 5-20 mm long, and the red area is 5-10 mm long.

[0074] like Figure 3-6 As shown: When the puncture needle is not being used for puncture, the observation window will show the green area of ​​the positioning seat or the return spring and the green area, depending on the position of the observation window. When the spring core 3 contacts the tissue to be punctured, it will move backward continuously, causing the positioning seat to move backward as well. After the tip of the spring core is fully inserted into the puncture needle tube, the observation window will only show the red part of the positioning seat. When the puncture needle passes through the tissue to be punctured and enters the cavity, the spring core 3 moves forward to reset, and the observation window will show the green area of ​​the positioning seat 5 or the return spring and the green area, indicating that the puncture is complete. During the puncture procedure, the doctor can determine the stage of the puncture by observing the color of the positioning seat in the observation window, simplifying the doctor's operation, reducing the reliance on the doctor's experience and feel, and improving the safety of the patient during puncture treatment.

[0075] The reset structure is a reset spring.

[0076] Furthermore, the needle connector 2 is a three-way connector; the three-way connector is divided into...

[0077] The front support connector 21 is fixedly connected to the puncture needle tube 1;

[0078] The rear support connector 22 is detachably connected to the first hand handle 31 or the second hand handle 41.

[0079] Side support connector 23 is used in conjunction with sampling instruments to extract samples from inside tissues.

[0080] In practical use, further operations such as sampling are required after puncture. Therefore, the needle connector 2 is designed as a three-way connector. After puncture, the bouncing core 3 can be removed by the second hand handle 41 to replace the image acquisition mechanism. In addition, it can be used with the sampling instrument through the side branch connector 23 to extract samples from inside the tissue.

[0081] Furthermore, the side support joint 23 is provided with an end cap 5 for sealing. Both the first hand handle 31 and the second hand handle 41 are provided with Luer connectors 6 that mate with the rear support joint 22.

[0082] In practical use, further operations such as sampling are required after puncture, so a three-way connector is designed. After puncture, the bouncing core mechanism is removed through the second hand handle 41, and then used with the sampling instrument through the side support connector 23 to extract samples from the tissue. It should be noted that the image acquisition mechanism can be inserted after the bouncing core mechanism is removed.

[0083] The reset structure is preferably a reset spring.

[0084] Compared to most ordinary puncture needles on the market, which rely entirely on the doctor's experience and feel during use, the image acquisition mechanism in this invention ensures that the puncture tip will not puncture internal organs or major blood vessels during the puncture process, thereby improving safety. At the same time, after the puncture needle enters the cavity, the spring core mechanism is pulled out and the image acquisition mechanism is inserted, so that the actual situation inside the cavity appears on the monitor, ensuring that the cavity can be explored under visual guidance, avoiding false negatives in puncture, and with the assistance of the image acquisition mechanism, a reliable diagnosis of the disease can be made.

[0085] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A visual puncture needle system with a protection function, characterized by: It comprises a puncture needle tube (1) for human body puncture; a needle tube connector (2) connected to the rear end of the puncture needle tube (1) for the operator to hold; an image acquisition mechanism detachably connected with the needle tube connector (2); and a bounce core mechanism detachably connected with the needle tube connector (2); the bounce core mechanism can be replaced by the image acquisition mechanism after the puncture is completed; the image acquisition mechanism comprises a first handle (31) detachably connected to the rear end of the needle tube connector (2), a connecting tube (32) located in the puncture needle tube (1), the front end of the connecting tube (32) being provided with a camera (33), and the rear end of the connecting tube (32) being connected with the first handle (31); a light source structure arranged around the camera (33) to provide light for the camera; a control circuit (34) arranged in a cavity provided in the first handle (31) and connected with the camera (33) and the light source structure; a human-computer interaction mechanism connected with the control circuit, at least comprising a display (35), and one or more of a light source button, a photographing button (361), and a video recording button (362); the bounce core mechanism comprises a second handle (41) detachably connected to the rear end of the needle tube connector (2), a bounce core (42) located in the puncture needle tube (1), the front end of the bounce core (42) extending out of the front end of the puncture needle tube (1) and being blunt processed, and the rear end of the bounce core (42) extending into the second handle (41); a reset structure (43) located at the rear end of the bounce core (42) and arranged in the second handle (41); the reset structure (43) applies a forward force to the bounce core (42) in real time when the bounce core (42) moves backward under an external force, so as to ensure that the front end of the bounce core (42) extends out of the puncture needle tube (1) after the external force is removed.

2. The visual puncture needle system with a protection function according to claim 1, characterized in that: a sliding carrier (311) is further arranged in the cavity of the first handle (31), the sliding carrier (311) can slide forward and backward in the cavity of the first handle (31), and the control circuit (34) is mounted on the sliding carrier (311); a guide hole (312) extending forward and backward is formed in the first handle (31), and a control rod (313) extending out of the guide hole (312) is arranged on the sliding carrier (311); the tail of the connecting tube (32) is fixedly connected to the sliding carrier (311), so that the connecting tube (32) can move forward and backward with the sliding carrier (311).

3. The visual puncture needle system with a protection function according to claim 2, characterized in that: a clamping groove (315) is arranged on the inner wall of the cavity of the first handle (31), and a ball structure (314) is arranged on the sliding carrier (311); when the ball structure cooperates with the clamping groove, the sliding carrier (311) and the first handle (31) are fixed, and the sliding carrier (311) slides forward or backward when an external force greater than a threshold value is applied.

4. The visual puncture needle system with a protection function according to claim 2, characterized in that: the light source structure comprises a light emitting element (371) and a plurality of light guide materials (372), the light emitting element is mounted on the control circuit (34) or the sliding carrier (311), the light guide materials are located in the connecting tube (32), the front end of the light guide materials extends to the outer periphery of the camera, and the rear end of the light guide materials extends to the vicinity of the light emitting element.

5. The visual puncture needle system with a protective function according to claim 1, characterized in that: The tail of the elastic core (42) is fixed with a positioning seat (44), the rear end of the positioning seat (44) is fixedly connected with a reset structure (43), and the rear end of the reset structure (43) is connected to the second hand handle (41).

6. The visual puncture needle system with a protection function according to claim 5, characterized in that: The positioning seat (44) is divided into a red area (441) of the front section and a green area (442) of the rear section according to colors, and an observation window (45) is formed in the second hand handle (41), which can display red or green according to the position of the forward and backward sliding of the positioning seat (44).

7. The visual puncture needle system with a protection function according to claim 1, characterized in that, The reset structure is a reset spring.

8. The visual puncture needle system with a protection function according to any one of claims 1-7, characterized in that: The needle tube connector (2) is a three-way joint; the three-way joint is divided into a front branch joint (21) fixedly connected with the puncture needle tube (1); a rear branch joint (22) detachably connected with the first hand handle (31) or the second hand handle (41); a side branch joint (23) used for cooperating with a sampling device to extract samples inside the tissue.

9. The visual puncture needle system with a protection function according to claim 8, characterized in that: The side branch joint (23) is provided with an end cap (5) for sealing.

10. The visual puncture needle system with a protection function according to claim 8, characterized in that: The first hand handle (31) and the second hand handle (41) are both provided with a luer joint (6) for cooperating with the rear branch joint (22).

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