Puncture needle with absorbing and clamping effects for minimally invasive surgery
By designing a minimally invasive surgical puncture needle with an absorption and clamping effect, and combining negative pressure adsorption and mechanical clamping, the problem that traditional puncture needles cannot handle multiple lesion types has been solved, achieving efficient treatment of soft and rigid tissues and improving surgical efficiency and safety.
Patent Information
- Application Number
- CN202522727419.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-12-23
AI Technical Summary
Traditional puncture needles have a single function and cannot accommodate multiple lesion types, such as soft tissue, hard nodules, and fluid accumulation.
A minimally invasive surgical puncture needle with suction and clamping effect was designed. Combining negative pressure adsorption and mechanical clamping, it can treat soft tissue and fluid accumulation through a negative pressure suction machine and a sealed adsorption channel, and use a micro pneumatic gripper to clamp rigid tissue, thus achieving the treatment of various types of lesions.
It enables flexible switching and efficient treatment of multiple types of lesions, improving surgical efficiency and reducing the risk of accidental injury and patient pain.
Smart Images
Figure CN223944466U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical machinery technical field, concretely is a kind of puncture needle with suction clamping effect for minimally invasive surgery. BACKGROUND
[0002] Puncture needle is a kind of precision medical instrument for clinical minimally invasive surgery, diagnostic sampling or treatment operation, and the core function is to reach target site (such as focus, blood vessel, joint cavity etc.) by "puncturing" skin and deep tissue, to realize a series of medical operations such as sampling, dosing, drainage, biopsy etc.
[0003] Traditional puncture needle has single function: only puncture or aspirate effusion (such as ordinary suction puncture needle), cannot consider soft tissue, hard nodule, effusion and other multiple pathological types.
[0004] For the above problems, a kind of puncture needle with suction clamping effect for minimally invasive surgery is provided. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of puncture needle with suction clamping effect for minimally invasive surgery, solve the problem that traditional puncture needle in background art has single function: only puncture or aspirate effusion, cannot consider soft tissue, hard nodule, effusion and other multiple pathological types.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of puncture needle with suction clamping effect for minimally invasive surgery, including needle body, the needle body bottom is fixedly connected with needle head, the needle head left side is equipped with installation slot, the installation slot is fixedly connected with probe, the needle body left side is penetrated and is equipped with wire slot, the wire slot is communicated with installation slot, the wire slot is penetrated and is provided with transmission line, the needle head right side is equipped with suction hole, the needle body right side is penetrated and is equipped with suction passage, and suction passage is communicated with suction hole, the suction passage top outside is fixedly connected with fixed cylinder, the fixed cylinder top is fixedly connected with connecting cylinder, the connecting cylinder top is equipped with sealing groove, the both sides of connecting cylinder are fixedly connected with first locking block, the first locking block inboard is equipped with first locking slot, the first locking block outside is fixedly connected with first locking ring, and first locking ring is fixedly connected with connecting cylinder, the connecting cylinder top is provided with connecting pipe, the connecting pipe bottom is fixedly connected with installation cylinder, the both sides of installation cylinder are fixedly connected with second locking block, the second locking block inboard is equipped with second locking slot, the second locking block outside is fixedly connected with second locking ring, and second locking ring is fixedly connected with installation cylinder.
[0007] By adopting the above technical scheme, by negative pressure adsorption, effusion, abscess, soft tissue (such as lumbar disc nucleus) are adapted;Mechanical clamping, rigid tissue, larger protruding object are adapted, and multiple pathological treatment is facilitated.
[0008] As a further description of the above technical solution: the absorbing hole is provided with a micro pneumatic clamping jaw.
[0009] By adopting the above technical solution, the clamping jaw is controlled to retract, and the lesion tissue is firmly fixed by the clamping force. After the image confirms that the clamping is firm, the puncture needle is slowly withdrawn from the body together with the clamping jaw and the lesion tissue, so as to avoid slipping in the middle.
[0010] As a further description of the above technical solution: the probe is provided with a lamp ring outside, and the lamp ring is fixedly connected with the inner wall of the mounting groove outside.
[0011] By adopting the above technical solution, the lamp ring is a LED cold light lamp, which provides local illumination for the puncture needle.
[0012] As a further description of the above technical solution: the transmission line is fixedly connected with the probe at the bottom end, and the transmission line is fixedly connected with a display at the end.
[0013] By adopting the above technical solution, the transmission line is connected with the probe through the left line groove of the needle body, and the end is connected with the display outside the body, so as to construct a real-time imaging link of the probe, the transmission line and the display.
[0014] As a further description of the above technical solution: the mounting cylinder is fixedly connected with a sealing ring at the bottom, and the sealing ring is arranged in the sealing groove.
[0015] By adopting the above technical solution, the sealing ring and the sealing groove can improve the sealing performance of the mounting cylinder after being mounted with the connecting cylinder.
[0016] As a further description of the above technical solution: the second locking ring is arranged in the first locking groove, and the first locking ring is arranged in the second locking groove.
[0017] By adopting the above technical solution, the second locking ring can be inserted into the first locking groove, and the first locking ring can be inserted into the second locking groove, so as to form a cross locking structure. The structure limits the displacement of the components by the fitting surface of the locking ring and the locking groove, so as to ensure that the connecting cylinder and the mounting cylinder are not loose after being spliced.
[0018] As a further description of the above technical solution: the needle body is provided with a negative pressure suction machine outside, and the output end of the negative pressure suction machine is fixedly connected with the connecting pipe.
[0019] By adopting the above technical solution, the protrusion is sucked by the negative pressure suction machine, or sucked out through the suction channel.
[0020] As a further description of the above technical solution: the needle body is provided with a negative pressure suction machine outside, and the output end of the negative pressure suction machine is fixedly connected with the connecting pipe.
[0021] By adopting the technical scheme, the external medicine injection equipment (syringe, infusion pump, etc.) is docked with the needle body internal medicine injection channel, it is confirmed that the medicine can be accurately injected through the needle head front end injection hole of the channel end, and the medicine injection channel is completely independent of the absorption channel and the wire slot, without cross interference risk.
[0022] Compared with the prior art, the utility model has the advantages that:
[0023] The puncture needle with absorption and clamping effects for minimally invasive surgery provided by the utility model has a negative pressure adsorption and mechanical clamping dual-mode operation system. Soft tissues, effusions and abscesses are initially treated through a negative pressure suction machine and a sealed adsorption channel. When rigid tissues are encountered, a double locking structure of a connecting cylinder and a mounting cylinder can be quickly disassembled, and a micro pneumatic clamping jaw is manually inserted to clamp, so that flexible switching of "adsorption priority and clamping supplement" is realized. For mixed lesions, a combined process of "adsorption-clamping-adsorption" can be used, so that all types of lesions can be treated, and the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a whole structure schematic view of the utility model;
[0025] Figure 2 It is a needle head structure schematic view of the utility model;
[0026] Figure 3 It is a needle head sectional view of the utility model;
[0027] Figure 4 It is a fixed cylinder structure schematic view of the utility model;
[0028] Figure 5 It is an installation cylinder explosion view of the utility model.
[0029] In the drawing: 1, needle body; 2, needle head; 3, mounting slot; 4, probe; 5, lamp ring; 6, wire slot; 7, transmission line; 8, display; 9, medicine injection channel; 10, absorption hole; 11, absorption channel; 12, micro pneumatic clamping jaw; 13, fixed cylinder; 14, connecting cylinder; 15, sealing groove; 16, first locking block; 17, first locking groove; 18, first locking ring; 19, connecting pipe; 20, mounting cylinder; 21, sealing ring; 22, second locking block; 23, second locking groove; 24, second locking ring; 25, negative pressure suction machine. DETAILED DESCRIPTION
[0030] 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.
[0031] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0032] Reference Figures 1-5 This invention discloses a minimally invasive surgical puncture needle with suction and clamping effect, comprising a needle body 1, with a needle handle mounted on the upper part of the needle body 1. A needle tip 2 is fixedly connected to the bottom of the needle body 1, facilitating puncture. A mounting groove 3 is provided on the left side of the needle tip 2, and a probe 4, a miniature optical endoscope probe, is fixedly connected within the mounting groove 3. Based on the fiber optic image transmission principle, the diameter of the probe 4 can be reduced to 0.5-2mm, and it has a miniature lens at the front end, transmitting real-time images to an external display 8 via optical fiber. A wire groove 6 is provided through the left side of the needle body 1, communicating with the mounting groove 3, and a transmission line 7 is provided within the wire groove 6. A suction hole 10 is provided on the right side of the needle tip 2, and a suction channel 11 is provided through the right side of the needle body 1, communicating with the suction hole 10, facilitating the entry of soft tissue into the collection container of the negative pressure suction machine 25 through the suction hole 10 and suction channel 11. A fixing cylinder 13 is fixedly connected to the outer top of the absorption channel 11, serving as a fixed installation element. A connecting cylinder 14 is fixedly connected to the top of the fixing cylinder 13, also serving as an installation element. A sealing groove 15 is formed at the top of the connecting cylinder 14, and a sealing ring is installed inside the sealing groove 15. First locking blocks 16 are fixedly connected to both sides of the connecting cylinder 14. A first locking groove 17 is formed on the inner side of the first locking block 16, and a first locking ring 18 is fixedly connected to the outer side of the first locking block 16. The first locking ring 18 gradually widens from the front end to the rear end, and can engage with the locking block and locking ring in conjunction with the locking groove to achieve quick fixation. The first locking ring 18 is fixedly connected to the connecting cylinder 14, and a connecting pipe 19 is provided above the connecting cylinder 14, serving as a conduit for transporting accumulated fluid and tissue. A mounting cylinder 20 is fixedly connected to the bottom of the connecting pipe 19. Second locking blocks 22 are fixedly connected to both sides of the mounting cylinder 20. A second locking groove 23 is formed on the inner side of each second locking block 22, and a second locking ring 24 is fixedly connected to the outer side of each second locking block 22. The second locking ring 24 corresponds to the first locking groove 17. The second locking ring 24 is fixedly connected to the mounting cylinder 20.
[0033] Reference Figures 1-5, the micro pneumatic clamping jaw 12 is arranged in the suction hole 10, the clamping jaw is controlled to be closed, the lesion tissue is fixed firmly by the clamping force, after the firm clamping is confirmed by the image, the puncture needle is slowly withdrawn from the body together with the clamping jaw and the lesion tissue, and the puncture needle is prevented from slipping in the middle. The lamp ring 5 is arranged outside the probe 4, and the lamp ring 5 is fixedly connected with the inner wall of the mounting groove 3. The lamp ring 5 is a LED cold light lamp, and provides local illumination for the puncture needle. The bottom end of the transmission line 7 is fixedly connected with the probe 4, and the end of the transmission line 7 is fixedly connected with the display 8. The transmission line 7 is connected with the probe 4 through the wire groove 6 on the left side of the needle body 1, and the end is connected with the display 8 outside the body, so that the real-time imaging link of the probe 4, the transmission line 7 and the display 8 is constructed. The sealing ring 21 is fixedly connected with the bottom of the mounting cylinder 20, and the sealing ring 21 is arranged in the sealing groove 15. The sealing property of the mounting cylinder 20 after being mounted with the connecting cylinder 14 can be improved by cooperation of the sealing ring 21 and the sealing groove 15. The second locking ring 24 is arranged in the first locking groove 17, and the first locking ring 18 is arranged in the second locking groove 23. The second locking ring 24 can be inserted into the first locking groove 17, and the first locking ring 18 can be inserted into the second locking groove 23, so that the cross locking structure is formed. The structure limits the displacement of the components by the fitting surface of the locking ring and the locking groove, and ensures that the connecting cylinder 14 and the mounting cylinder 20 are not loose after being spliced. The negative pressure suction machine 25 is arranged on the outside of the needle body 1, and the output end of the negative pressure suction machine 25 is fixedly connected with the connecting pipe 19. The protrusions are sucked by the negative pressure suction machine 25 or sucked out by the suction channel 11. Two circulating pumps (not marked in the figure) are further arranged on the outside of the needle body 1. The two circulating pumps are connected with Y-shaped flushing and extraction integrated pipes, can be used for puncturing in a water environment of physiological saline circulation and suction in the whole puncture process, can flush the lesion, can make the operation field clear, and the suction machine 25 can be replaced. The medicine injection channel 9 is arranged in the front end of the needle body 1 and penetrates the needle head 2 at the front end. The external medicine injection equipment (syringe, infusion pump and the like) is connected with the medicine injection channel 9 in the needle body 1, the medicine can be accurately injected through the front end injection hole of the needle head 2, the medicine injection channel 9 is completely independent of the suction channel 11 and the wire groove 6, and there is no cross interference risk.
[0034] Working principle: In use, then install the bottom of the sealing ring 21 cylinder 20 top of the sealing groove 15 and inserted into the connection tube 14, clockwise rotation of the installation cylinder 20, the first locking ring 18 inserted into the second locking groove 23, while the second locking ring 24 is inserted into the first locking groove 17, forming an interlocking structure, complete the installation of the installation cylinder 20 and the connection tube 14 fixed. In operation, the doctor hand-held needle body 1 needle handle, the needle head 2 along the minimally invasive surgical channel or pre-puncture path slowly into the body, the whole process through the display 8 real-time monitoring probe 4 transmission of dynamic images: light ring 5 provides continuous local lighting, probe 4 clearly presented needle 2 real-time location, surrounding blood vessels, nerves and other important anatomical structure distribution, as well as the morphology of the lesion tissue (intervertebral disc nucleus, osteoarthritis, synovitis joint effusion, tuberculosis focus, abscess, cyst) boundary. Doctors according to the image feedback real-time adjustment of puncture angle and depth, accurate to avoid important organizations, completely avoid the risk of injury of traditional blind puncture. And puncture surgery in the first through the fixed cylinder 13 flush and suction integrated tube into the absorption channel 11, then through the circulating pump to flush out through the flushing pipe flushing, while the other external circulating pump start, through the extraction pipe after flushing of normal saline is extracted, so as to realize the circulation of flushing, can be whole in physiological saline circulating water environment under the suction of the puncture, to the lesion flushing, make the operation field clear, again change the suction machine 25, the effusion is absorbed. When the needle 2 reaches the lesion area, through the probe 4 detail imaging function area of the lesion and normal tissue: through the morphological observation of lumbar disc nucleus and annulus fibrosus. Then adjust the needle body 1 attitude, make the suction hole 10 directly to the lesion core site, ensure the subsequent operation of the target area. If the lesion tissue needs to be anesthetized or softened (such as calcified lumbar, tuberculosis focus), through the injection channel 9 to the lesion area infusion anesthetic or softener, the drug through the needle head front end injection hole directly acting on the target site, after the drug takes effect, then carry on the subsequent operation, reduce the operation difficulty and patient pain. According to the nature of the lesion tissue (soft / stiff), to the adsorption as the initial scheme, need to clamp through the disassembly of the locking structure intervention clamp, the whole process by the probe 4 real-time monitoring: close the circulating pump, quickly connect the connecting tube 19 and the negative pressure suction machine 25, through the cross locking structure to ensure the connection sealing (same as the preoperative assembly logic). Start the negative pressure suction machine 25, according to the lesion type to adjust the negative pressure intensity (effusion with low negative pressure, soft tissue with high negative pressure), the negative pressure is transmitted to the suction hole 10 through the connecting tube 19, connecting tube 14, absorption channel 11; probe 4 real-time observation: soft tissue (such as intervertebral disc nucleus, cyst) is sucked into the suction hole 10, through the suction channel 11, connecting tube 19 into the negative pressure suction machine 25 collection container. Small volume tissue block (diameter ≤5mm) can be absorbed after the puncture needle together with the exit; large volume of tissue or effusion is continuously sucked to clean. When the negative pressure adsorption can not fix the removal of the lesion (such as calcified lumbar, hard nodule), start the clamping operation.Close the negative pressure suction machine 25, manually separate the connecting cylinder 14 and the mounting cylinder 20: reverse the double locking structure to make the second locking ring 24 separate from the first locking groove 17, the first locking ring 18 separate from the second locking groove 23, take out the connecting pipe 19 and the mounting cylinder 20, and expose the opening of the fixing cylinder 13 at the top of the absorption channel 11; through the opening of the fixing cylinder 13, manually slowly extend the micro pneumatic clamping jaw 12 into the absorption channel 11 until the front end of the clamping jaw reaches the position of the absorption hole 10, confirm that the clamping jaw folding state does not exceed the range of the absorption hole 10 through the image of the probe 4; start the pneumatic control device to make the clamping jaw extend from the absorption hole 10 and open, adjust the needle body 1 according to the image of the probe 4, and make the clamping jaw accurately wrap the lesion tissue; after controlling the clamping jaw to fold and fix, directly take out the puncture needle together with the clamping jaw and the lesion tissue. If there is residual tissue after clamping and taking out, the clamping jaw can be disassembled again, the connecting cylinder 14 and the mounting cylinder 20 can be reassembled, and the remaining tissue can be removed through negative pressure.
[0035] It should be noted that the relational terms herein such as first and second, and the like, are used solely to distinguish one from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0036] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A minimally invasive surgical puncture needle with an absorption and clamping effect, comprising a needle body (1), characterized in that: The needle body (1) is fixedly connected to the bottom of the needle head (2). The needle head (2) has an installation groove (3) on its left side. The installation groove (3) is fixedly connected to the probe (4). The needle body (1) has a wire groove (6) running through its left side. The wire groove (6) is connected to the installation groove (3). The wire groove (6) has a transmission line (7) running through its wire groove (6). The needle head (2) has an absorption hole (10) on its right side. The needle body (1) has an absorption channel (11) running through its right side. The absorption channel (11) is connected to the absorption hole (10). The absorption channel (11) is fixedly connected to the outer top of the absorption channel (11). The top of the fixed cylinder (13) is fixedly connected to a connecting cylinder (14). The top of the connecting cylinder (14) has a sealing groove (15). The connecting cylinder (14) is fixedly connected to both sides with a first locking block (16). The first locking block (16) has a first locking groove (17) on its inner side. The first locking block (16) has a first locking ring (18) fixedly connected to its outer side. The first locking ring (18) is fixedly connected to the connecting cylinder (14). The connecting cylinder (14) is provided with a connecting pipe (19) above it. The bottom of the connecting pipe (19) is fixedly connected to an installation cylinder (20). The installation cylinder (20) has a second locking block (22) fixedly connected to both sides. The second locking block (22) has a second locking groove (23) on its inner side. The second locking block (22) has a second locking ring (24) fixedly connected to its outer side. The second locking ring (24) is fixedly connected to the installation cylinder (20).
2. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: A miniature pneumatic gripper (12) is provided inside the suction hole (10).
3. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: The probe (4) is provided with a lamp ring (5) on the outside, and the lamp ring (5) is fixedly connected to the inner wall of the mounting groove (3).
4. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: The bottom end of the transmission line (7) is fixedly connected to the probe (4), and the end of the transmission line (7) is fixedly connected to the display (8).
5. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: The bottom of the mounting cylinder (20) is fixedly connected to a sealing ring (21), and the sealing ring (21) is set in the sealing groove (15).
6. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: The second locking ring (24) is disposed in the first locking groove (17), and the first locking ring (18) is disposed in the second locking groove (23).
7. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: A negative pressure suction machine (25) is provided on the outside of the needle body (1), and the output end of the negative pressure suction machine (25) is fixedly connected to the connecting tube (19).
8. The minimally invasive surgical puncture needle with absorption and clamping effect according to claim 1, characterized in that: The needle body (1) has an injection channel (9) that extends through the front end of the needle body (1) and the end of the injection channel (9) extends through the front end of the needle tip (2).