Integrated multi-angle guide puncture needle

Abstract

The utility model discloses an integrated multi-angle guide puncture needle, which relates to the technical field of medical instruments and comprises a guide part, the guide part is provided with a handheld handle with a hollow structure, a connecting sleeve fixedly connected with one end of the handheld handle and a guide needle sleeve fixedly inserted with the connecting sleeve, and the handheld handle, the connecting sleeve and the guide needle sleeve form a puncture passage; the needle body is inserted into the puncture channel, and a C-shaped buckle is arranged on the outer wall of the angle calibrator and connected with the clamping part in a clamped mode. The angle calibrator is of a spherical hollow transparent structure, the angle calibrator is filled with filling liquid, a calibration plate floats on the liquid level of the filling liquid, and angle scale marks are arranged on the outer wall of the angle calibrator. According to the integrated multi-angle guide puncture needle, the angle calibrator which can be detachably connected with the puncture needle is arranged, so that the needle inserting angle value is displayed in real time when a puncture channel is established by medical staff, the needle inserting direction and angle can be accurately controlled, and the risk of increasing pneumothorax and bleeding complications due to the fact that the needle inserting angle is adjusted for multiple times is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically an integrated multi-angle guiding puncture needle. Background Technology

[0002] CT-guided percutaneous lung biopsy is a routine procedure in departments such as thoracic surgery, respiratory medicine, oncology, and interventional radiology. It is an important method for precise surgical resection, accurate ablation of lung nodules, or obtaining pathological specimens of lung nodules for definitive diagnosis after localization guidance. Currently, the main procedure is to perform the puncture using coaxial technology. That is, during the operation, a hollow guide needle is first inserted and placed into the target area, and then a positioning hook or puncture needle is inserted through the guide needle to complete the treatment.

[0003] However, some problems during the procedure have attracted the attention of many clinicians. For example, regarding the needle insertion angle, although CT scans can be used to design the optimal needle insertion direction, angle, and depth, the surgeon mainly estimates the needle insertion direction and angle visually during the procedure. This is especially true for smaller tumors or targets that need to avoid important blood vessels, and even experienced doctors often make mistakes. The distance of the needle tip deviation = (puncture depth × 2 × 3.14 ÷ 360) × the angle of deviation; for example, for a nodule 10cm from the body surface, if the needle insertion angle deviates by 10°, the needle tip will deviate from the predetermined point by 1.74cm during puncture. For some small lung nodules located deeper, the needle may puncture beyond the nodule itself; even for larger nodules, the needle may puncture the central necrotic area, leading to puncture failure.

[0004] Therefore, multiple CT scans are often required to adjust the needle insertion angle, but this significantly increases the risk of complications such as pneumothorax and bleeding. Some doctors may bring their own protractors or design their own three-dimensional angle supports, but due to the unique shape of the chest wall, the surface morphology around each puncture point may be different, making it difficult to control the precision of external auxiliary equipment. Currently, there are similar laser-guided robot-assisted devices, but they are expensive, cumbersome to operate, and increase patient expenses. Utility Model Content

[0005] The purpose of this invention is to provide an integrated multi-angle guided puncture needle to solve the problems mentioned in the background art.

[0006] To solve the above technical problems, this utility model provides the following technical solution: an integrated multi-angle guided puncture needle, comprising: a guide member, the guide member having a hollow handle, a connecting sleeve fixedly connected to one end of the handle, and a guide needle sleeve fixedly inserted into the connecting sleeve, the handle, the connecting sleeve, and the guide needle sleeve forming a puncture passage.

[0007] Needle body, the needle body being inserted into the puncture passage;

[0008] An angle calibrator, wherein the outer wall of the angle calibrator is provided with a C-shaped buckle, and the outer wall of the hand handle is provided with a locking part, wherein the C-shaped buckle is locked with the locking part;

[0009] The angle calibrator is a spherical hollow transparent structure. The angle calibrator is filled with a filling liquid, and a calibration plate floats on the surface of the filling liquid. The outer wall of the angle calibrator is provided with angle scale lines.

[0010] In a further embodiment, one end of the needle body is fixed with an end cap, and the other end of the hand handle is fixed with a plug sleeve, and the end cap extends to have an extension end that is tightly inserted into the plug sleeve.

[0011] In a further embodiment, the needle length is set to be equal to the length of the puncture passage.

[0012] In a further embodiment, the sum of the liquid level of the filling liquid and the thickness of the calibration plate is equal to the inner radius of the angle calibrator.

[0013] In a further embodiment, a counterweight head is provided vertically downwards from the center of the bottom wall of the calibration plate.

[0014] In a further embodiment, the edge sidewall of the calibration plate has a tapered cross-section, and the tapered structure slides and fits against the inner wall of the angle calibrator.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model is an integrated multi-angle guided puncture needle. By setting an angle calibrator that can be detachably connected to the puncture needle, medical staff can display the needle insertion angle value in real time when establishing a puncture channel, providing angle guidance to accurately control the needle insertion direction and angle. This allows the pre-set puncture path to be executed precisely, accurately puncturing the lesion, thus avoiding the need for multiple adjustments to the needle insertion angle, which increases the risk of complications such as pneumothorax and bleeding. The method of use is simple and easy to master. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram showing the disassembled main structure of an embodiment of the present utility model;

[0019] Figure 3 This is a partial half-sectional view of the angle calibrator according to an embodiment of the present invention;

[0020] Figure 4 This is a front view of the angle calibrator according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the angle calibration of the angle calibrator according to an embodiment of the present invention;

[0022] Figure 6 A partial half-section view is provided for further improvement of the angle calibrator in this embodiment of the utility model.

[0023] In the diagram: 1. Guide needle sleeve; 11. Hand handle; 12. Connecting sleeve; 13. Insertion sleeve; 14. Snap-fit ​​part; 2. Needle body; 21. End cap; 3. Angle calibrator; 31. Angle scale line; 32. C-type buckle; 33. Calibration plate; 331. Counterweight head; 34. Filling fluid. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this embodiment, an integrated multi-angle guided puncture needle is provided, such as... Figure 1 and Figure 2 As shown, the device includes a guide, a hollow handle 11, a connecting sleeve 12 fixedly connected to one end of the handle 11, and a guide needle sleeve 1 fixedly inserted into the connecting sleeve 12. The handle 11, the connecting sleeve 12, and the guide needle sleeve 1 form a puncture passage. It also includes a needle body 2, one end of which is fixedly capped with an end cap 21, and the other end of the handle 11 is fixedly capped with an insertion sleeve 13. The end cap 21 extends to an extension end that is tightly inserted into the insertion sleeve 13. By holding the handle 11 with one hand, the needle body 2 is inserted into the puncture passage, and the extension end is embedded in the insertion sleeve 13. The needle body 2 blocks the insertion end opening of the guide needle sleeve 1. When the guide needle sleeve 1 reaches the preset puncture point, the needle body 2 can be pulled out from the puncture passage, so that the surgical instruments can reach the lesion site from the puncture passage for surgical operation.

[0026] Furthermore, the length of the needle body 2 is set to be the same as the length of the puncture passage. The purpose of this design is to insert the needle body 2 into the puncture passage and occupy the space within the puncture passage, so as to prevent tissue fluid from entering the puncture passage and blocking it when the guide needle sleeve 1 is puncturing along the preset puncture point, thus affecting the efficiency of subsequent surgery. At the same time, it prevents the needle body 2 from being too long and extending out of the puncture passage, which would pose a safety hazard.

[0027] To accurately establish the puncture channel, such as Figure 1 and Figure 2As shown, it also includes an angle calibrator 3. The outer wall of the angle calibrator 3 is provided with a C-shaped buckle 32, and the outer wall of the handle 11 is provided with a locking part 14. The C-shaped buckle 32 is locked with the locking part 14. The angle calibrator 3 is locked with the locking part 14 through the C-shaped buckle 32, realizing the detachable assembly between the angle calibrator 3 and the guide. When establishing the puncture channel, the angle calibrator 3 is installed on the handle 11 of the guide. After use, simply remove the C-shaped buckle 32 from the locking part 14. The guide and the needle body 2 are disposed of as medical waste, while the angle calibrator 3 can be reused after disinfection.

[0028] At the same time, such as Figure 3 and Figure 4 As shown, the angle calibrator 3 is a spherical, hollow, transparent structure, preferably made of transparent acrylic plastic. It is filled with a filling liquid 34, and a calibration plate 33 floats on the surface of the filling liquid 34. The edge of the calibration plate 33 slides against the inner wall of the angle calibrator 3, and the outer wall of the angle calibrator 3 is provided with angle scale lines 31. The zero mark of the angle scale lines 31 is located in the middle, and the angle scale lines 31 are arranged sequentially upwards and downwards with the zero mark as the zero point. The calibration plate 33 floats on the surface of the filling liquid 34 and is in a horizontal state. Furthermore, the sum of the height of the filling liquid 34 and the thickness of the calibration plate 33 is equal to the inner radius of the angle calibrator 3. This ensures that the upper surface of the calibration plate 33 is exactly at the same horizontal level as the zero mark. Figure 4 As shown, in this state, the calibration plate 33 is in the initial state, that is, when the C-type buckle 32 is engaged with the snap-fit ​​part 14, the guide is vertically distributed and the calibration plate 33 built into the angle calibrator 3 is in a horizontal state.

[0029] like Figure 5 As shown, when the guide is tilted, the angle calibrator 3 will tilt at the same angle. Since the calibration plate 33 always floats on the surface of the filling liquid 34 in a horizontal state, there will be an angle difference between the angle calibrator 3 and the calibration plate 33. At this time, the angle scale line 31 on the same horizontal line of the upper edge sidewall of the calibration plate 33 is the tilt angle of the entire puncture needle, which provides an angle reference for the doctor when performing puncture.

[0030] In summary, by setting up an angle calibrator 3 that can be detachably connected to the puncture needle, the angle value of the needle insertion can be displayed in real time, providing angle guidance so as to accurately control the direction and angle of the needle insertion. This allows the pre-set puncture path to be executed precisely, accurately puncturing the lesion, thereby avoiding multiple adjustments to the needle insertion angle and increasing the risk of complications such as pneumothorax and bleeding. The method of use is simple and easy to master.

[0031] It is worth noting that ethanol is preferred as the filling fluid 34 because it is a commonly used organic solvent with good fluidity and stability. Therefore, using ethanol as the filling fluid 34 in the angle calibrator 3 prevents the generation of air bubbles during angle adjustment, allowing the position of the calibration plate 33 to be clearly seen through the calibrator 3. This position can then be compared with the angle scale lines 31 on the outer wall of the calibrator 3 to obtain a precise angle value for the doctor's reference during puncture. Water can also be used as the filling fluid 34.

[0032] In this embodiment, furthermore, to prevent the liquid level of the filling liquid 34 from fluctuating slightly when the guide member and the angle calibrator 3 are tilted, causing the calibration plate 33 to oscillate and affecting the doctor's ability to quickly view the angle value, a counterweight head 331 is provided vertically downward at the center of the bottom wall of the calibration plate 33. Figure 6 As shown, by using the counterweight head 331 to counterweight the calibration plate 33, it can be ensured that the calibration plate 33 is not shaken by the floating of the filling liquid 34.

[0033] Alternatively, the edge sidewall of the calibration plate 33 can be tapered, and the tapered structure can slide against the inner wall of the angle calibrator 3. For example... Figure 4 As shown, the contact area between the tip of the conical structure and the inner wall of the angle calibrator 3 is minimized, thereby reducing the sliding friction between the calibration plate 33 and the inner wall of the angle calibrator 3 when they slide relative to each other. This prevents the angle calibrator 3 from being adjusted and the calibration plate 33 from slowly sliding relative to the inner wall of the angle calibrator 3, which would otherwise result in inaccurate and slow calibration.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated multi-angle guiding and puncturing needle, characterized in that, Include: The guide has a hollow structure of the handle (11), the connecting sleeve (12) is fixedly connected with one end of the handle (11), and the guide needle sleeve (1) is fixedly inserted with the connecting sleeve (12), the handle (11), the connecting sleeve (12) and the guide needle sleeve (1) form a puncture channel; The needle body (2) is inserted into the puncture channel; The angle calibrator (3) is provided with a C-shaped buckle (32) on the outer wall, the handle (11) is provided with a clamping part (14) on the outer wall, and the C-shaped buckle (32) is clamped with the clamping part (14); The angle calibrator (3) is a spherical hollow transparent structure, the angle calibrator (3) is filled with filling liquid (34), and the liquid level of the filling liquid (34) floats with a calibration plate (33), the edge side wall section of the calibration plate (33) is a tapered structure, and the tapered structure is in sliding fit with the inner wall of the angle calibrator (3), the outer wall of the angle calibrator (3) is provided with an angle scale line (31).

2. The unitary multi-angle directional trocar needle of claim 1, wherein, One end of the needle body (2) is fixed with an end cap (21), the other end of the handle (11) is fixed with an insertion sleeve (13), the end cap (21) extends an extension end which is tightly inserted with the insertion sleeve (13).

3. The unitary multi-angle directional trocar needle of claim 1, wherein, The length of the needle body (2) is equal to the length of the puncture channel.

4. The unitary multi-angle directional trocar needle of claim 3, wherein, The sum of the liquid level height of the filling liquid (34) and the thickness of the calibration plate (33) is equal to the internal radius of the angle calibrator (3).

5. The unitary multi-angle directional piercing needle of claim 1, wherein, The bottom wall center of the calibration plate (33) is vertically extended downward to be provided with a counterweight head (331).

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