A lung nodule puncture needle with a guiding mechanism

Abstract

The present invention discloses a lung nodule puncture needle with a guiding mechanism, which includes a puncture needle body, a first guiding mechanism and a second guiding mechanism. The first guiding mechanism is arranged on the needle handle and includes a guide base, a sleeve and a sliding member. The second guiding mechanism is arranged at the bottom of the guide base and includes a support plate wristband, a housing, a rotating assembly and a rotary knob. Through the arranged first guiding mechanism, it is used to adjust the puncture inner needle inside the puncture needle. Through the arranged sliding member, the puncture inner needle can freely slide inside the puncture outer needle, and a guiding distance is formed and can be extended to any length. The puncture forceps arranged at the front end of the puncture inner needle are used for puncture resection surgery. Through the guide rod and the soft ring arranged in the sliding member, after the puncture outer needle is extended and retracted, it can be fixed, which is convenient for the movement of the puncture forceps during use.

Description

Technical Field

[0001] The present invention belongs to the technical field of puncture needles, and particularly relates to a lung nodule puncture needle with a guiding mechanism. Background Art

[0002] As an important organ of the body, the lungs need to confirm the location of lesions during early examinations or surgeries, so as to perform surgical treatment earlier. However, in the treatment of lung nodules, minimally invasive surgery is usually adopted, and a puncture needle is used to puncture and excise the lungs. Usually, the user holds the puncture needle and relies on the imaging of a CT machine, and cooperates with both hands to puncture and excise the lung nodules.

[0003] Patent CN202221617880.3 discloses a puncture needle guiding bracket, including a fixing bracket and a guiding device. The guiding device includes two clamping plates hinged to each other through a rotating shaft, a spring disposed between the two clamping plates for forcing the front ends of the two clamping plates to fit together, and an adjusting screw for adjusting the clamping distance between the two clamping plates, which is threadedly penetrated and cooperated with one of the clamping plates and the front end of which abuts against the other clamping plate; the front end of one of the clamping plates has a guiding groove for placing the puncture needle, and the other clamping plate has a clamping plane corresponding to the guiding groove. The rear end of one of the clamping plates also extends out a pressing portion for opening the two clamping plates. By rotating the adjusting screw, the clamping distance between the two clamping plates can be finely adjusted, improving the accuracy during clamping. Patent CN202221565109.6 discloses a puncture needle with a sliding guiding soft wire, including a puncture needle body and an indwelling hose. The puncture needle body includes a puncture needle tip and a guiding soft wire. The indwelling hose sleeve can extend into the human blood vessel under the guidance of the puncture needle tip and the sliding guiding soft wire. This device is convenient to operate and easy to get started. For patients with poor blood vessel conditions, vascular puncture with a high success rate can also be achieved, and the production cost of the product is low. In this solution, only the tip of the puncture needle needs to be inserted into the blood vessel, and the sliding guiding soft wire can be pushed into the blood vessel by using the handle part. Due to the soft property of the sliding guiding soft wire, during the process of the sliding guiding soft wire extending into the blood vessel, the front end of the sliding guiding soft wire can change direction following the direction of the blood vessel. However, in the above devices, the puncture needles all require the cooperation of both hands. During the puncture process, the puncture accuracy of the patient's lungs cannot be guaranteed. In view of this, we propose a lung nodule puncture needle with a guiding mechanism.

[0004] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a lung nodule puncture needle with a guiding mechanism to solve the above problems of the prior art.

[0006] To achieve the above object, the present invention provides a lung nodule puncture needle with a guiding mechanism, which includes a puncture needle body, a first guiding mechanism and a second guiding mechanism;

[0007] The puncture needle body includes a hollow puncture outer needle and a puncture inner needle sleeved inside the puncture outer needle. A needle handle is provided at the tail end of the puncture outer needle;

[0008] The first guiding mechanism is arranged on the needle handle and includes a guide seat, a sleeve sleeved on the needle handle and a slider arranged on the guide seat. A rectangular groove is opened at the top of the guide seat. The sleeve is inserted and matched with the front end of the guide seat. A push head is provided at the front side of the top of the sleeve. The bottom end of the push head slides in the rectangular groove. The tail end of the puncture inner needle sequentially penetrates through the inside of the sleeve and the bottom of the slider and then passes out from the rear end of the guide seat. A guide rod is inserted into the slider. The top end of the guide rod is clamped and fixed at the foremost side of the rectangular groove. A soft ring is provided at the bottom end of the guide rod. The soft ring is sleeved on the outside of the puncture inner needle;

[0009] The second guiding mechanism is arranged at the bottom of the guide seat and includes a support plate and a wrist strap arranged at the rear end of the top of the support plate. A concave cavity is opened at the front end of the top of the support plate. A housing is provided at the top end of the concave cavity. A rotating component is arranged inside the housing. The front end of the rotating component is rotatably connected with a rotary knob.

[0010] In the technical solution of the present invention, a puncture forceps is provided at the head end of the puncture inner needle. The width of the puncture forceps is smaller than the diameter of the puncture inner needle. The puncture inner needle slides inside the puncture outer needle.

[0011] In the technical solution of the present invention, two sliding grooves are opened on the inner wall of the front end of the guide seat. The two sliding grooves are symmetrically arranged left and right. Two side plates are integrally formed at the bottom of the guide seat. The bottom of the side plates is fixed to the top of the rotating component by a pin.

[0012] In the technical solution of the present invention, sliding blocks matching the sizes of the sliding grooves are provided on the left and right outer walls of the sleeve. The sliding blocks are slidably connected with the sliding grooves.

[0013] In the technical solution of the present invention, a round hole is opened at the head end of the sleeve. The round hole is in threaded connection with the needle handle.

[0014] In the technical solution of the present invention, a ring is provided at the top of the slider. An inner cavity is opened at the lower end of the slider. The soft ring is sleeved in the inner cavity. The soft ring is made of silica gel material. A spring is fixedly connected to the bottom of the soft ring. The bottom of the spring abuts against the bottom wall of the inner cavity. The top end of the guide rod slides up and down inside the ring. A clamping column is inserted and fixed at the left end of the ring. The right end of the clamping column passes through the top end of the guide rod and then passes out from the right end of the ring.

[0015] In the technical solution of the present invention, a first rotating shaft is rotatably connected to the center of the bottom of the concave cavity. A first bevel gear is key-connected and fixed to the middle rod body of the first rotating shaft. A second bevel gear is provided at the top of the front side of the first bevel gear. The first bevel gear meshes with the second bevel gear. A second rotating shaft is sleeved inside the second bevel gear.

[0016] In the technical solution of the present invention, the top of the first rotating shaft penetrates through the top of the housing. The front end of the housing includes a protruding end. The front end of the second rotating shaft penetrates through the protruding end and is fixed with a turning knob.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, through the first guiding mechanism provided, it is used to adjust the puncture inner needle inside the puncture needle. Through the sliding member provided, the puncture inner needle can freely slide inside the puncture outer needle and form a guiding distance, and can be telescoped to any length. The puncture forceps provided at the front end of the puncture inner needle are used for puncture resection surgery. Through the guide rod and soft ring provided inside the sliding member, after the puncture outer needle is telescoped, it can be fixed, which is convenient for the puncture forceps to move during use.

[0019] 2. In the present invention, through the sleeve and guide seat provided on the first guiding mechanism, it is convenient to install the needle handle of the puncture outer needle inside the sleeve. By pushing the push head at the top of the sleeve, the sleeve can slide inside the guide seat, which is convenient to adjust the use length of the puncture outer needle and puncture different depths according to the lung condition.

[0020] 3. In the present invention, through the second guiding mechanism provided, it is used for the angle adjustment of the puncture needle, which is convenient for use. A wristband, a rotating assembly and a turning knob are provided. Through the wristband provided, it is convenient for the user to put it on the wrist and hold up the puncture needle. By pinching the turning knob with the fingers, the rotating assembly is driven to drive the first guiding mechanism to rotate, and the puncture needle on the first guiding mechanism is driven to rotate, realizing the direction adjustment of the puncture needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a structural diagram of the puncture needle body in the present invention;

[0023] Figure 3 is a structural diagram of the first guiding mechanism in the present invention;

[0024] Figure 4 is a structural diagram of the sleeve and the sliding member in the present invention;

[0025] Figure 5 is a structural diagram of the guide seat in the present invention;

[0026] Figure 6 Structural diagram of the sleeve in the present invention;

[0027] Figure 7 Structural diagram of the sliding member in the present invention;

[0028] Figure 8 Partial structural diagram of the sliding member in the present invention;

[0029] Figure 9 Structural diagram of the second guiding mechanism in the present invention;

[0030] Figure 10 Structural diagram of the outer shell in the present invention.

[0031] Explanation of reference numerals:

[0032] 1. Puncture needle body; 10. Outer puncture needle; 101. Needle handle; 11. Inner puncture needle; 110. Puncture forceps;

[0033] 2. First guiding mechanism; 20. Guide base; 201. Rectangular groove; 202. Slide groove; 203. Side plate; 2030. Pin; 21. Sleeve; 210. Pushing head; 211. Slide block; 212. Round hole; 22. Sliding member; 220. Ring; 221. Inner cavity; 222. Guide rod; 2220. Soft ring; 2221. Spring; 223. Clamping post;

[0034] 3. Second guiding mechanism; 30. Wristband; 31. Support plate; 310. Concave cavity; 311. Outer shell; 312. Protruding end; 32. Rotating assembly; 320. First rotating shaft; 321. First bevel gear; 322. Second bevel gear; 323. Second rotating shaft; 33. Rotary knob. Detailed implementation manners

[0035] The following combines the accompanying drawings to describe the detailed implementation manners of the present invention in detail, but it should be understood that the protection scope of the present invention is not limited by the detailed implementation manners.

[0036] Unless otherwise clearly stated, throughout the specification and claims, the term "comprise" or its variations such as "comprises" or "including" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0037] Refer to Figures 1 - 10, the lung nodule puncture needle with a guiding mechanism of the present invention includes a puncture needle body 1, a first guiding mechanism 2 and a second guiding mechanism 3. The puncture needle body 1 includes a hollow puncture outer needle 10 and a puncture inner needle 11 sleeved inside the puncture outer needle 10. A needle handle 101 is provided at the tail end of the puncture outer needle 10. The puncture outer needle 10 is provided for penetrating the patient's thoracic wall and lung cavity. The first guiding mechanism 2 is provided to guide the puncture outer needle 10 and the puncture inner needle 11. During use, the use lengths of the puncture outer needle 10 and the puncture inner needle 11 can be adjusted, the telescopic length of the puncture inner needle 11 inside the puncture outer needle 10 can be controlled, and the puncture inner needle 11 can be fixed. The second guiding mechanism 3 can accurately adjust the use angle of the puncture needle body 1, sleeve the puncture needle body 1 on the wrist, and achieve the effect of single-handed use.

[0038] In the present invention, a puncture forceps 110 is provided at the front end of the puncture inner needle 11. The puncture forceps 110 is used to excise the patient's lung nodule. The width of the puncture forceps 110 is smaller than the diameter of the puncture inner needle 11. By pushing the puncture inner needle 11, the puncture inner needle 11 slides inside the puncture outer needle 10, facilitating the free entry and exit of the puncture forceps 110 at the needle opening of the puncture outer needle 10.

[0039] First, the first guiding mechanism 2 is provided on the needle handle 101 and includes a guide seat 20, a sleeve 21 and a slider 22. A rectangular groove 201 is formed at the top of the guide seat 20. The sleeve 21 is inserted and matched with the front end of the guide seat 20. A push head 210 is provided at the front side of the top of the sleeve 21. The bottom end of the push head 210 slides in the rectangular groove 201. The needle handle 101 is sleeved inside the sleeve 21, facilitating the overall installation and disassembly of the puncture needle body 1. By pushing the push head 210, the sleeve 21 slides inside the guide seat 20, thereby adjusting the use length of the puncture outer needle 10 and facilitating puncturing different depths for different lung conditions. The tail end of the puncture inner needle 11 sequentially penetrates through the inside of the sleeve 21 and the bottom of the slider 22 and then passes out from the rear end of the guide seat 20. The puncture inner needle 11 is installed in the guide seat 20. A guide rod 222 is inserted inside the slider 22. The top end of the guide rod 222 is clamped and fixed at the foremost side of the rectangular groove 201. By telescoping the puncture inner needle 11 inside the puncture outer needle 10, the front end of the puncture inner needle 11 extends out from the needle opening of the puncture outer needle 10, exposing the puncture forceps 110 part, facilitating the excision of the patient's lung nodule. A soft ring 2220 is provided at the bottom end of the guide rod 222. The soft ring 2220 is sleeved outside the puncture inner needle 11. By pressing down the guide rod 222, the soft ring 2220 deforms. Through the provided soft ring 2220, the rear end of the puncture inner needle 11 is limited and fixed.

[0040] Secondly, two sliding grooves 202 are formed in the inner wall of the front end of the guide base 20. The two sliding grooves 202 are symmetrically arranged left and right. Two side plates 203 are integrally formed at the bottom of the guide base 20. The bottom of the side plate 203 is fixed to the top of the rotating assembly 32 by a pin 2030. Through the two side plates 203 and the pin 2030 provided, the first guiding mechanism 2 and the second guiding mechanism 3 are assembled to ensure stable rotation and adjustment of the puncture needle body 1 without shaking.

[0041] Thirdly, sliding blocks 211 matching the size of the sliding grooves 202 are provided on the left and right outer walls of the sleeve 21. The sliding blocks 211 are slidably connected to the sliding grooves 202 to improve the stability of the sleeve 21 when moving the puncture outer needle 10.

[0042] In addition, a round hole 212 is formed at the head end of the sleeve 21. The round hole 212 is threadedly connected to the needle handle 101, facilitating the assembly of the puncture outer needle 10 and the sleeve 21.

[0043] Finally, a ring 220 is provided at the top of the slider 22. An inner cavity 221 is formed at the lower end of the slider 22. The soft ring 2220 is sleeved in the inner cavity 221. By pressing down the slider 22, the top end of the guide rod 222 slides into the ring 220. The bottom end of the guide rod 222 moves downward to deform the soft ring 2220, pressing against the outer wall of the rear end of the puncture inner needle 11. The soft ring 2220 is made of silica gel material to increase the contact force between the bottom of the puncture inner needle 11 and the top of the soft ring 2220, so that the puncture inner needle 11 is squeezed and fixed. A spring 2221 is fixedly connected to the bottom of the soft ring 2220. After the spring 2221 is subjected to a downward pressure, it rebounds, so that the bottom of the spring 2221 abuts against the bottom wall of the inner cavity 221. The bottom of the soft ring 2220 is subjected to the rebounding force of the top of the spring 2221, increasing the contact force at the bottom of the puncture inner needle 11. A clamping post 223 is inserted and fixed at the left end of the ring 220. The right end of the clamping post 223 passes through the top end of the guide rod 222 and passes out of the right end of the ring 220. Through the clamping post 223 provided, the guide rod 222 is limited, so that the puncture inner needle 11 is fixed by the slider 22.

[0044] In the present invention, the second guiding mechanism 3 is arranged at the bottom of the guide base 20 and includes a support plate 31 and a wristband 30 arranged at the rear end of the top of the support plate 31. A concave cavity 310 is formed at the front end of the top of the support plate 31. A housing 311 is provided at the top end of the concave cavity 310. A rotating assembly 32 is arranged in the housing 311. The front end of the rotating assembly 32 is rotatably connected to a rotary knob 33. Through the wristband 30 provided, it is convenient for the user to use the puncture needle. The user puts the wristband 30 on the wrist and pinches the rotary knob 33 with the fingers. By rotating the rotary knob 33, the angle of the puncture needle body 1 is adjusted, facilitating the puncture operation on the patient. Through the housing 311 provided, the rotating assembly 32 is protected, improving safety.

[0045] Specifically, a first rotating shaft 320 is rotatably connected to the center of the bottom of the concave cavity 310. A first bevel gear 321 is key-connected and fixed to the middle rod body of the first rotating shaft 320. A second bevel gear 322 is provided at the top of the front side of the first bevel gear 321. A second rotating shaft 323 is sleeved inside the second bevel gear 322. By rotating the knob 33, the first rotating shaft 320 is driven to rotate. The first bevel gear 321 meshes with the second bevel gear 322. The second bevel gear 322 drives the first bevel gear 321 to rotate and drives the first rotating shaft 320 to rotate, so that the first rotating shaft 320 drives the guide base 20 to rotate, thereby realizing the angle adjustment of the puncture needle body 1. The user only needs to rotate the knob 33 to move the puncture needle body 1 in the patient's lung cavity, improving the puncture efficiency.

[0046] Finally, the top of the first rotating shaft 320 penetrates through the top of the outer shell 311. The front end of the outer shell 311 includes a convex end 312. The front end of the second rotating shaft 323 penetrates through the convex end 312 and is fixed with a knob 33. Through the provided convex end 312, the second rotating shaft 323 is supported and rotated, which is convenient for use.

[0047] The working principle of the lung nodule puncture needle with a guiding mechanism of the present invention is specifically as follows:

[0048] First, install the puncture needle body 1 on the first guiding mechanism 2, then put the wristband 30 on the wrist, hold the knob 33 with fingers, and rotate the knob 33 to drive the second rotating shaft 323 to drive the second bevel gear 322 and the first bevel gear 321 to mesh and rotate, thereby driving the first bevel gear 321 to rotate. Drive the guide base 20 to rotate through the first bevel gear 321, and then rotate and adjust the direction of the puncture needle body 1. By pushing the rear end of the puncture inner needle 11, the puncture inner needle 11 slides on the lower end of the slider 22, so that the puncture inner needle 11 extends out from the needle opening of the puncture outer needle 10 and exposes the puncture forceps 110. By pressing down the guide rod 222 and pushing the clamping column 223 to fix the guide rod 222, the soft ring 2220 is pressed down and deformed to fix the rear end of the puncture inner needle 11. Use the puncture forceps 110 to perform a resection operation on the patient's lung nodule.

[0049] The foregoing description of specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and modifications. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A lung nodule puncture needle with a guiding mechanism, comprising a puncture needle body (1), a first guiding mechanism (2) and a second guiding mechanism (3), characterized in that: The puncture needle body (1) includes a hollow puncture outer needle (10) and a puncture inner needle (11) sleeved inside the puncture outer needle (10). A needle handle (101) is provided at the tail end of the puncture outer needle (10); The first guiding mechanism (2) is arranged on the needle handle (101), and includes a guide seat (20), a sleeve (21) sleeved on the needle handle (101), and a sliding member (22) arranged on the guide seat (20). A rectangular groove (201) is opened at the top of the guide seat (20). The sleeve (21) is inserted and matched with the front end of the guide seat (20). A push head (210) is provided at the front side of the top of the sleeve (21). The bottom end of the push head (210) slides in the rectangular groove (201). The tail end of the puncture inner needle (11) sequentially passes through the inside of the sleeve (21) and the bottom of the sliding member (22), and then passes out from the rear end of the guide seat (20). A guide rod (222) is inserted into the sliding member (22). The top end of the guide rod (222) is clamped and fixed at the frontmost side of the rectangular groove (201). A soft ring (2220) is provided at the bottom end of the guide rod (222). The soft ring (2220) is sleeved on the outside of the puncture inner needle (11); The second guiding mechanism (3) is arranged at the bottom of the guide seat (20), and includes a support plate (31) and a wristband (30) arranged at the rear end of the top of the support plate (31). A concave cavity (310) is opened at the front end of the top of the support plate (31). A housing (311) is provided at the top end of the concave cavity (310). A rotating assembly (32) is arranged inside the housing (311). A rotary knob (33) is rotatably connected to the front end of the rotating assembly (32); A puncture forceps (110) is provided at the head end of the puncture inner needle (11). The width of the puncture forceps (110) is smaller than the diameter of the puncture inner needle (11). The puncture inner needle (11) slides inside the puncture outer needle (10); Two sliding grooves (202) are opened on the inner wall of the front end of the guide seat (20). The two sliding grooves (202) are symmetrically arranged left and right. Two side plates (203) are integrally formed at the bottom of the guide seat (20). The bottom of the side plate (203) is fixed to the top of the rotating assembly (32) by a pin (2030); A first rotating shaft (320) is rotatably connected to the center of the bottom of the concave cavity (310). A first bevel gear (321) is key-connected and fixed to the middle rod body of the first rotating shaft (320). A second bevel gear (322) is provided at the front top of the first bevel gear (321). The first bevel gear (321) meshes with the second bevel gear (322). A second rotating shaft (323) is sleeved inside the second bevel gear (322).

2. The lung nodule puncture needle with a guiding mechanism according to claim 1, wherein: Sliders (211) matching the size of the sliding grooves (202) are provided on the left and right outer walls of the sleeve (21). The sliders (211) are slidably connected to the sliding grooves (202).

3. The lung nodule puncture needle with a guiding mechanism according to claim 1, characterized in that: A round hole (212) is opened at the head end of the sleeve (21). The round hole (212) is threadedly connected to the needle handle (101).

4. The lung nodule puncture needle with a guiding mechanism according to claim 1, characterized in that: A ring (220) is provided at the top of the slider (22). An inner cavity (221) is formed at the lower end of the slider (22). The soft ring (2220) is sleeved in the inner cavity (221). The soft ring (2220) is made of silica gel material. A spring (2221) is fixedly connected to the bottom of the soft ring (2220). The bottom of the spring (2221) abuts against the bottom wall of the inner cavity (221). The top end of the guide rod (222) slides up and down within the ring (220). A clamping post (223) is inserted and fixed at the left end of the ring (220). The right end of the clamping post (223) passes through the top end of the guide rod (222) and then passes out of the right end of the ring (220).

5. The lung nodule puncture needle with a guiding mechanism according to claim 1, characterized in that: The top of the first rotating shaft (320) penetrates through the top of the outer shell (311). The front end of the outer shell (311) includes a protruding end (312). The front end of the second rotating shaft (323) penetrates through the protruding end (312) and is fixed with a rotary knob (33).

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