Adjustable needle head assembly for auxiliary analgesia of minimally invasive local anesthesia

Abstract

The invention discloses an adjustable needle head assembly for auxiliary analgesia of minimally invasive local anesthesia, and relates to the field of medical equipment, the adjustable needle head assembly comprises three injection cylinders and a sleeving cylinder, the three injection cylinders are all sleeved with connecting hoses, and the connecting hoses are connected with needle heads. It needs to be explained that in the embodiment of the invention, the rotating frame is rotated to drive the three arc-shaped pushing frames to rotate, then the extrusion pushing frame is made to move to drive the needle head to conduct anesthesia, scales are arranged on the extrusion pushing frame, the entering depth of the needle head can be effectively adjusted, a patient cannot directly see the needle head, and the fear of the patient is eliminated; the consistent puncturing depth can be ensured, so that the same medicine effect is ensured, and precise anesthesia is realized; besides, the disinfection rotary drum disinfects the fingers through a plurality of disinfection cotton pieces and is clamped to the palm of the patient through two supporting sliding frames, the situation that the entering depth of the needle cannot meet the requirement due to the fact that the fingers of the patient are bent up and down in the anesthesia process is avoided, and therefore the needle assembly is convenient to use and can guarantee the anesthesia effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia. Background Art

[0002] Both nail surgery and perionychia surgery require local anesthesia. Paronychia, melanonychia, and nail deformities often occur on the thumb. The anesthesia injection site is usually located on the dorsum of the finger and on both sides. Currently, lidocaine (anesthetic) and saline are often diluted with a syringe. The injection is then injected into the periosteum (harder) on the dorsum of the finger. The needle is then withdrawn and injected into both sides without removing it. 1-2 ml is injected each time, with a total volume of 5 ml. However, there are two problems with this method: first, patients are more fearful; second, inconsistent insertion depths lead to different drug effects, making it impossible to achieve precise anesthesia, resulting in suboptimal anesthesia effects, which can easily cause pain to patients, affect the progress of the operation, and even affect the patient's physical health. Summary of the Invention

[0003] The object of the present invention is to provide an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia, comprising three syringes and a sleeve sleeve, wherein each of the three syringes is sleeved with a connecting hose, the connecting hose is connected to a needle, and the three syringes are annularly and equidistantly mounted on the sleeve sleeve; It also includes a centralized adjustment device, which is installed on the sleeve, and is used to synchronously adjust the entry positions of multiple needles; the centralized adjustment device includes three abutment sleeves, which are movably installed on the sleeve at equal intervals in an annular manner, and a mounting cover is threadedly sleeved on the abutment sleeve, and an extrusion push frame is movably installed on the mounting cover, and the extrusion push frame is provided with scale lines, and the needle is inserted into the extrusion push frame, and a rotating extrusion ring is rotatably installed on the sleeve, and three arc-shaped push frames are installed on the rotating extrusion ring, and the three arc-shaped push frames are movably installed on the three extrusion push frames respectively; An active disinfection device is installed in the sleeve, and is used to actively disinfect the patient's fingers; the active disinfection device includes a disinfection drum, which is located in the sleeve, and a suspension rod is installed on the top inner wall of the sleeve, and a lifting rod is movably installed on the bottom side of the suspension rod. The disinfection drum is installed on the lifting rod, and a plurality of disinfection cotton pads are annularly installed on the inner wall of the disinfection drum; A finger support device is installed on the bottom side of the sleeve, and the finger support device is used to support the patient's fingers. The finger support device includes two support slides, and the two support slides are respectively slidably installed on both sides of the sleeve. The two support slides slide out to support the patient's fingers.

[0005] Furthermore, in a preferred embodiment of the present invention, a rotating frame is rotatably mounted on the top side of the sleeve, and the rotating frame is mounted on the rotating extrusion ring; The three extrusion push frames are each equipped with a driving push shaft, which is movably mounted on the three arc-shaped push frames. Rotating the rotating extrusion ring drives the three driving push shafts to move through the three arc-shaped push frames, thereby driving the three extrusion push frames to move.

[0006] Furthermore, in a preferred embodiment of the present invention, a push-back spring is connected between the mounting cover and the extrusion push frame, and a pressing spring is connected between the sleeve and the pressing sleeve; An adapting groove is provided on the abutting sleeve, and the connecting hose passes through the adapting groove.

[0007] Furthermore, in a preferred embodiment of the present invention, three clamping frames are equidistantly mounted in an annular manner on the outer side of the sleeve, and the three syringes are respectively clamped on the three clamping frames; A lower pressing frame is slidably mounted on each of the three clamping frames, and a centralized pushing frame is mounted on the three lower pressing frames. The centralized pushing frame is pushed to synchronously drive the three lower pressing frames to move.

[0008] Furthermore, in a preferred embodiment of the present invention, the active disinfection device further comprises an L-shaped rod, and the L-shaped rod is mounted on the top inner wall of the sleeve; A threaded groove is provided on the lifting rotating rod, and one end of the L-shaped rod extends into the threaded groove.

[0009] Furthermore, in a preferred embodiment of the present invention, a mounting cavity is provided on the bottom side of the boom, and the top end of the lifting rod is rotatably mounted in the mounting cavity; A rotating plate is rotatably installed in the installation cavity. A descending spring is provided in the installation cavity. The bottom end of the descending spring contacts the top side of the rotating plate.

[0010] Furthermore, in a preferred embodiment of the present invention, the finger support device further comprises a closed bottom plate, the closed bottom plate being mounted on the bottom side of the sleeve tube, and two sliding sealing plates being slidably mounted on the closed bottom plate, the two sliding sealing plates being used to seal the sleeve tube; Two sliding grooves are provided on the bottom side of the closed bottom plate, and the two sliding sealing plates are slidably installed in the two sliding grooves. Two opening and closing rotating rods are rotatably installed on the closed bottom plate, and the two opening and closing rotating rods are movably installed on the two sliding sealing plates respectively.

[0011] Furthermore, in a preferred embodiment of the present invention, two opening and closing shafts are installed on the opening and closing rotating rod, an opening and closing slide groove is provided on the sliding sealing plate, and one of the opening and closing shafts is slidably installed in the opening and closing slide groove; A U-shaped frame is slidably mounted on the bottom side of the closed bottom plate. The movement of the supporting slide is used to squeeze the U-shaped frame to move, and the movement of the U-shaped frame is used to push the two opening and closing rotating rods to rotate.

[0012] Furthermore, in a preferred embodiment of the present invention, two mounting grooves are provided on the closed bottom plate, and the two opening and closing shafts are rotatably mounted in the two mounting grooves respectively; A sliding torsion spring is installed on the inner wall of the installation groove, and the other end of the sliding torsion spring is installed on the opening and closing shaft.

[0013] Furthermore, in a preferred embodiment of the present invention, lifting slots are provided on both sides of the sleeve, and the two supporting slides are slidably installed in the two lifting slots respectively; Two positioning grooves are provided on the inner wall of the lifting slide, and a push-out groove is provided on the supporting slide, and a positioning rod is movably installed in the push-out groove, one end of the positioning rod is stuck in one of the positioning grooves, and a positioning spring is installed at one end of the positioning rod, and the other end of the positioning spring is installed on the inner wall of the push-out groove.

[0014] The beneficial effects of the adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia proposed by the present invention are: In the present invention, through the setting of the centralized adjustment device, during anesthesia, the rotating rotating frame drives the three arc-shaped push frames to rotate, and the arc-shaped push frames drive the extrusion push frames to move through the driving push shaft, so that the movement of the extrusion push frames drives the needle for anesthesia, and the extrusion push frames are provided with scales, which can effectively adjust the insertion depth of the needle, so that the patient will not directly see the needle, eliminating the patient's fear, and can ensure the consistency of the insertion depth, thereby ensuring the same drug efficacy and achieving precise anesthesia; in addition, by pushing the centralized push frame downward, the centralized push frame can drive multiple lower pressure frames to move, so that multiple lower pressure frames can synchronously push three syringes for injection, which is convenient and efficient to use.

[0015] Furthermore, in the present invention, through the setting of the active disinfection device, when the finger bends and enters the socket cylinder, the disinfection drum is pushed to move, and the movement of the disinfection drum drives the lifting rod to move. The lifting rod moves through the rotating plate in the installation cavity and pushes the descending spring to be stressed. At the same time, the lifting rod moves on the L-shaped rod through the threaded groove, so that the lifting rod drives the disinfection drum to rotate, and the disinfection drum disinfects the fingers through multiple disinfection cotton pads, thereby achieving the purpose of active disinfection.

[0016] Furthermore, in the present invention, by setting up the finger support device, during anesthesia, the two support slides are pushed to move so that the two support slides are stuck in the palm of the patient, thereby avoiding the problem that the patient's fingers are bent up and down during anesthesia, causing the needle to enter to a depth that does not meet the requirements, and then causing the anesthesia effect to be substandard. In addition, by sliding and closing the two sliding sealing plates, the purpose of sealing the sleeve is achieved, thereby avoiding the problem of the interior of the sleeve being contaminated when it is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the connection between the sleeve of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia and an active disinfection device and other structures provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the connection between the syringe and the centralized adjustment device of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the connection between the abutment sleeve and the sterilization drum and other structures of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the connection between the needle and the abutment sleeve and other structures of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention, wherein a connecting hose and a tightening sleeve and other structures are connected; Figure 6 A schematic diagram of the structure of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention, wherein the needle is connected to an extrusion push frame and other structures; Figure 7 A schematic diagram of the partial structure of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention, wherein a tightening sleeve and an arc-shaped push frame and other structures are connected; Figure 8 A schematic diagram of a partial cross-section of the connection between the suspension rod and the lifting rod and other structures of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 9 A schematic diagram of the partial structure of the connection between the closed base plate and the opening and closing rotating rod and other structures of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 10 A schematic diagram of a partial cross-section of the connection between a sleeve and a closed base plate and other structures of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 11 A schematic cross-sectional view of the connection between a closed base plate and a U-shaped frame and other structures of an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention; Figure 12 An adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by an embodiment of the present invention Figure 10 Schematic diagram of the structure of part A.

[0018] In the figure: 1- syringe; 2- connecting hose; 3- needle; 4- sleeve; 5- centralized adjustment device; 501- tight sleeve; 502- tight spring; 503- mounting cover; 504- extrusion push frame; 505- push back spring; 506- rotating extrusion ring; 507- arc push frame; 508- driving push shaft; 509- rotating frame; 510- clamping frame; 511- lower pressure frame; 512- adapter groove; 513- centralized push frame; 6- active disinfection device; 601- disinfection drum; 602- suspension rod; 603- lifting rod; 60 4-disinfectant cotton pad; 605-descending spring; 606-threaded groove; 607-L-shaped rod; 608-installation cavity; 609-rotating plate; 7-finger support device; 701-closed bottom plate; 702-sliding sealing plate; 703-sliding groove; 704-opening and closing rotating rod; 705-opening and closing slide; 706-opening and closing shaft; 707-U-shaped frame; 708-installation groove; 709-sliding torsion spring; 710-lifting slide; 711-support slide; 712-positioning groove; 713-ejection groove; 714-positioning rod; 715-positioning spring. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In addition, in the description of the present invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the terms "horizontal," "vertical," and "perpendicular" do not necessarily imply that a component must be absolutely vertical, but rather that it can be slightly tilted. For example, "vertical" simply means that its direction is more vertical than "horizontal," and does not mean that the structure must be completely vertical, but rather that it can be slightly tilted.

[0024] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] Please refer to the attached manual Figure 1-Figure 2 An embodiment of the present invention provides an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia, which includes three syringes 1 and a sleeve tube 4. The three syringes 1 are all sleeved with a connecting hose 2, and the connecting hose 2 is connected to a needle 3, and the three syringes 1 are annularly and equidistantly installed on the sleeve tube 4.

[0026] For further information, please refer to the attached manual. Figure 3-Figure 7The embodiment of the present invention provides an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia, which also includes a centralized adjustment device 5, which is installed on the sleeve 4 and is used to synchronously adjust the entry positions of multiple needles 3; specifically, the centralized adjustment device 5 includes three abutting sleeves 501, and the three abutting sleeves 501 are movably installed on the sleeve 4 in an annular and equidistant manner. A mounting cover 503 is threadedly sleeved on the abutting sleeve 501, and an extrusion push frame 504 is movably installed on the mounting cover 503. The extrusion push frame 504 is provided with a scale line, and the needle 3 is inserted into the extrusion push frame 504, and a rotating extrusion ring 506 is rotatably installed on the sleeve 4, and three arc-shaped push frames 507 are installed on the rotating extrusion ring 506. The three arc-shaped push frames 507 are movably installed on the three extrusion push frames 504 respectively. It should be noted that, in the embodiment of the present invention, during anesthesia, the rotating frame 509 drives the three arc-shaped push frames 507 to rotate, and the arc-shaped push frames 507 drive the extrusion push frames 504 to move by driving the push shaft 508, so that the extrusion push frames 504 move to drive the needle 3 for anesthesia, and the extrusion push frames 504 are provided with scales, which can effectively adjust the entry depth of the needle 3.

[0027] More specifically, in the embodiment of the present invention, an active disinfection device 6 is installed within the sleeve 4. The active disinfection device 6 is used to actively disinfect the patient's finger. The active disinfection device 6 includes a disinfection drum 601, which is located within the sleeve 4. A suspension rod 602 is installed on the top inner wall of the sleeve 4. A lifting rod 603 is movably installed on the bottom side of the suspension rod 602. The disinfection drum 601 is mounted on the lifting rod 603. A plurality of disinfection cotton pads 604 are annularly installed on the inner wall of the disinfection drum 601. It should be noted that in the embodiment of the present invention, during anesthesia, the finger bends and enters the sleeve 4, pushing the disinfection drum 601 to move. The movement of the disinfection drum 601 drives the lifting rod 603 to move. Simultaneously, the lifting rod 603 moves on the L-shaped rod 607 via the threaded groove 606, thereby causing the lifting rod 603 to drive the disinfection drum 601 to rotate, thereby achieving the purpose of disinfecting the finger through the plurality of disinfection cotton pads 604.

[0028] More specifically, in the embodiment of the present invention, a finger support device 7 is installed on the bottom side of the sleeve 4. The finger support device 7 is used to support the patient's fingers. The finger support device 7 includes two support slides 711. The two support slides 711 are slidably installed on both sides of the sleeve 4. The two support slides 711 slide out to support the patient's fingers. It should be noted that in the embodiment of the present invention, the two support slides 711 are pushed to move so that the two support slides 711 are stuck on the patient's palm, thereby achieving the purpose of supporting the patient's fingers, avoiding the problem of the patient's fingers bending up and down during anesthesia, which causes the needle 3 to not enter to the required depth, thereby ensuring the anesthetic effect.

[0029] Please continue to refer to the instructions attached Figure 3-Figure 7 Furthermore, an embodiment of the present invention provides an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia, wherein a rotating frame 509 is rotatably mounted on the top side of the sleeve 4, and the rotating frame 509 is mounted on the rotating extrusion ring 506; Furthermore, each of the three extrusion push frames 504 is equipped with a drive shaft 508, which is movably mounted on each of the three arc-shaped push frames 507. Rotating the extrusion ring 506 drives the three drive shafts 508 through the three arc-shaped push frames 507 to move, thereby driving the three extrusion push frames 504 to move. It should be noted that in this embodiment of the present invention, rotating the rotating frame 509 drives the three arc-shaped push frames 507 to rotate, and the arc-shaped push frames 507 drive the extrusion push frames 504 to move via the drive shafts 508. This allows the extrusion push frames 504 to move, thereby driving the needle 3 for anesthesia.

[0030] More specifically, in this embodiment of the present invention, a push-back spring 505 is connected between the mounting cover 503 and the extrusion push frame 504, and a holding spring 502 is connected between the sleeve 4 and the holding sleeve 501. Furthermore, an adapting groove 512 is formed on the holding sleeve 501, through which the connecting hose 2 passes. It should be noted that in this embodiment of the present invention, the sterilization drum 601 is separated from the plurality of holding sleeves 501. At this time, under the tensile force of the plurality of holding springs 502, the plurality of holding sleeves 501 come into contact with the fingers, facilitating injection.

[0031] Please continue to refer to the instructions attached Figure 3-Figure 7 More specifically, in the embodiment of the present invention, three clamping frames 510 are equidistantly installed in an annular manner on the outer side of the sleeve tube 4, and the three syringes 1 are respectively clamped on the three clamping frames 510; in addition, a lower pressing frame 511 is slidably installed on each of the three clamping frames 510, and a centralized pushing frame 513 is installed on the three lower pressing frames 511, and the centralized pushing frame 513 is pushed to synchronously drive the three lower pressing frames 511 to move. It should be noted that in the embodiment of the present invention, by pushing the centralized pushing frame 513 downward, the centralized pushing frame 513 drives the multiple lower pressing frames 511 to move, so that the multiple lower pressing frames 511 synchronously push the three syringes 1 to perform injection, which is convenient and efficient to use.

[0032] For further information, please refer to the attached manual. Figure 3 and Figure 8In an embodiment of the present invention, an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia is provided. The active disinfection device 6 further includes an L-shaped rod 607, which is mounted on the top inner wall of the sleeve 4. In addition, a threaded groove 606 is formed on the lifting rod 603, and one end of the L-shaped rod 607 extends into the threaded groove 606. It should be noted that in the embodiment of the present invention, the finger bends and enters the sleeve 4, pushing the disinfection drum 601 to move. The movement of the disinfection drum 601 drives the lifting rod 603 to move. The lifting rod 603 moves on the L-shaped rod 607 through the threaded groove 606, thereby causing the lifting rod 603 to drive the disinfection drum 601 to rotate, thereby achieving the purpose of the disinfection drum 601 disinfecting the finger through multiple disinfection cotton pads 604.

[0033] More specifically, in this embodiment of the present invention, a mounting cavity 608 is defined on the bottom side of the suspension rod 602, and the top end of the lifting rod 603 is rotatably mounted in the mounting cavity 608. A rotating plate 609 is rotatably mounted within the mounting cavity 608, and a descending spring 605 is disposed within the mounting cavity 608, with the bottom end of the descending spring 605 contacting the top side of the rotating plate 609. It should be noted that in this embodiment of the present invention, the provision of the rotating plate 609 prevents the lifting rod 603 from disengaging from the suspension rod 602 during rotation.

[0034] Please refer to the attached manual Figure 3 and Figures 9-12 Furthermore, an embodiment of the present invention provides an adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia, wherein the finger support device 7 further includes a closed bottom plate 701, which is mounted on the bottom side of the sleeve 4, and two sliding sealing plates 702 are slidably mounted on the closed bottom plate 701, and the two sliding sealing plates 702 are used to seal the sleeve 4; In addition, two sliding grooves 703 are formed on the bottom side of the closed bottom plate 701, and two sliding sealing plates 702 are slidably mounted in the two sliding grooves 703. Two opening and closing rotating rods 704 are rotatably mounted on the closed bottom plate 701, and the two opening and closing rotating rods 704 are movably mounted on the two sliding sealing plates 702. It should be noted that in this embodiment of the present invention, when the two supporting slides 711 move to support the finger, the two sliding sealing plates 702 slide and expand, opening the sleeve 4, at which time the finger can enter the sleeve 4 for anesthesia.

[0035] More specifically, in the embodiment of the present invention, two opening and closing shafts 706 are installed on the opening and closing rotating rod 704, an opening and closing chute 705 is provided on the sliding sealing plate 702, and one opening and closing shaft 706 is slidably installed in the opening and closing chute 705; in addition, a U-shaped frame 707 is slidably installed on the bottom side of the closed bottom plate 701, and the support slide 711 moves to squeeze the U-shaped frame 707 to move, and the U-shaped frame 707 moves to push the two opening and closing rotating rods 704 to rotate. It should be noted that in the embodiment of the present invention, when the U-shaped frame 707 is squeezed back by the support slide 711, the U-shaped frame 707 squeezes the two opening and closing rotating rods 704 to rotate, and when the opening and closing rotating rod 704 rotates, it drives the sliding sealing plate 702 to move through the other opening and closing shaft 706, and at the same time, the opening and closing shaft 706 slides in the opening and closing chute 705, so that the two sliding sealing plates 702 slide and close, thereby achieving the purpose of sealing the sleeve 4, thereby preventing the sleeve 4 from being contaminated.

[0036] Please continue to refer to the instructions attached Figure 3 and Figures 9-12 More specifically, in the embodiment of the present invention, two mounting slots 708 are provided on the closed bottom plate 701, and the two opening and closing shafts 706 are rotatably mounted in the two mounting slots 708, respectively; a sliding torsion spring 709 is mounted on the inner wall of the mounting slot 708, and the other end of the sliding torsion spring 709 is mounted on the opening and closing shaft 706. It should be noted that in the embodiment of the present invention, when the U-shaped frame 707 is separated from the two opening and closing rotating rods 704, the torsional force of the two sliding torsion springs 709 causes the two opening and closing shafts 706 to drive the two opening and closing rotating rods 704 to rotate, thereby achieving the purpose of automatically deploying the two sliding sealing plates 702.

[0037] To be more specific, in the embodiment of the present invention, a lifting slide 710 is provided on both sides of the sleeve tube 4, and two supporting slides 711 are slidably installed in the two lifting slides 710 respectively; in addition, two positioning grooves 712 are provided on the inner wall of the lifting slide 710, and a push-out groove 713 is provided on the supporting slide 711, and a positioning rod 714 is movably installed in the push-out groove 713, one end of the positioning rod 714 is stuck in a positioning groove 712, and a positioning spring 715 is installed at one end of the positioning rod 714, and the other end of the positioning spring 715 is installed on the inner wall of the push-out groove 713. It should be noted that, in the embodiment of the present invention, in the process of pushing the two supporting slides 711 to move, the supporting slides 711 drive the positioning rod 714 to move, and the positioning rod 714 is squeezed and retracted into the ejection groove 713 by the inner wall of the positioning groove 712, and at the same time drives the positioning spring 715 to be subjected to force. Therefore, after the supporting slide 711 moves into place, under the rebound force of the positioning spring 715, the positioning rod 714 is driven to be stuck in another positioning groove 712, thereby achieving the purpose of fixing the supporting slide 711, so that the two supporting slides 711 are stuck in the patient's palm to support the fingers.

[0038] In summary, the working principle of the adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia provided by the embodiment of the present invention is: During anesthesia, anesthetic liquid is extracted through the syringe 1, and then the syringe 1 is put on the connecting hose 2, and the syringe 1 is clamped on the clamping frame 510. At this time, the sleeve tube 4 is moved to the position of the finger, and then the two supporting slides 711 are pushed to move. The movement of the supporting slide 711 causes the positioning rod 714 to be squeezed and retracted by the inner wall of the positioning groove 712, and retracted into the ejection groove 713, and at the same time drives the positioning spring 715 to be stressed. Therefore, after the supporting slide 711 moves into place, the positioning rod 714 is driven by the rebound force of the positioning spring 715 to be clamped in the other positioning groove 712, so that the position of the supporting slide 711 is fixed, and the two supporting slides 711 are clamped on the patient's palm, avoiding the problem that the patient's fingers are bent up and down during anesthesia, causing the needle 3 to not enter the required depth, resulting in substandard anesthesia effect; Furthermore, when the two supporting slides 711 move, they no longer squeeze the U-shaped frame 707. At this time, under the torsional force of the two sliding torsion springs 709, the two opening and closing shafts 706 drive the two opening and closing rotating rods 704 to rotate. When the opening and closing rotating rod 704 rotates, the sliding sealing plate 702 is driven to move through the other opening and closing shaft 706. At the same time, the opening and closing shaft 706 slides in the opening and closing slide groove 705, causing the two sliding sealing plates 702 to slide and unfold, thereby allowing the sleeve 4 to be opened. At this time, the finger can enter the sleeve 4 for anesthesia; Furthermore, when the finger bends and enters the sleeve tube 4, the disinfection drum 601 is pushed to move, and the movement of the disinfection drum 601 drives the lifting rod 603 to move. The lifting rod 603 moves through the rotating plate 609 to rotate in the installation cavity 608, and pushes the descending spring 605 to be stressed. At the same time, the lifting rod 603 moves on the L-shaped rod 607 through the threaded groove 606, so that the lifting rod 603 drives the disinfection drum 601 to rotate, and the disinfection drum 601 disinfects the finger through multiple disinfection cotton pads 604; after the disinfection is completed, the finger is unfolded, and the disinfection drum 601 is further pushed, so that the disinfection drum 601 is separated from the multiple tight sleeves 501. Under the tensile force of multiple clamping springs 502, multiple clamping sleeves 501 come into contact with the fingers, and then the rotating frame 509 is rotated. The rotation of the rotating frame 509 drives the three arc-shaped push frames 507 to rotate, and the arc-shaped push frame 507 drives the extrusion push frame 504 to move through the driving push shaft 508, so that the extrusion push frame 504 moves and drives the needle 3 for anesthesia; in addition, it should be noted that a scale is provided on the extrusion push frame 504, which can effectively adjust the entry depth of the needle 3, and when pushing the centralized push frame 513 to move downward, the centralized push frame 513 drives multiple lower pressure frames 511 to move, so that the multiple lower pressure frames 511 synchronously push the three syringes 1 for injection, which is very convenient and efficient to use.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia, characterized in that: It comprises three syringes and a sleeve sleeve, wherein the three syringes are sleeved with a connecting hose, the connecting hose is connected to a needle, and the three syringes are annularly and equidistantly mounted on the sleeve sleeve; It also includes a centralized adjustment device, which is installed on the sleeve, and is used to synchronously adjust the entry positions of multiple needles; the centralized adjustment device includes three abutment sleeves, which are movably installed on the sleeve at equal intervals in an annular manner, and a mounting cover is threadedly sleeved on the abutment sleeve, and an extrusion push frame is movably installed on the mounting cover, and the extrusion push frame is provided with scale lines, and the needle is inserted into the extrusion push frame, and a rotating extrusion ring is rotatably installed on the sleeve, and three arc-shaped push frames are installed on the rotating extrusion ring, and the three arc-shaped push frames are movably installed on the three extrusion push frames respectively; An active disinfection device is installed in the sleeve, and is used to actively disinfect the patient's fingers; the active disinfection device includes a disinfection drum, which is located in the sleeve, and a suspension rod is installed on the top inner wall of the sleeve, and a lifting rod is movably installed on the bottom side of the suspension rod. The disinfection drum is installed on the lifting rod, and a plurality of disinfection cotton pads are annularly installed on the inner wall of the disinfection drum; A finger support device is installed on the bottom side of the sleeve, and the finger support device is used to support the patient's fingers. The finger support device includes two support slides, and the two support slides are respectively slidably installed on both sides of the sleeve. The two support slides slide out to support the patient's fingers.

2. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 1, characterized in that: A rotating frame is rotatably mounted on the top side of the sleeve, and the rotating frame is mounted on the rotating extrusion ring; The three extrusion push frames are each equipped with a driving push shaft, which is movably mounted on the three arc-shaped push frames. Rotating the rotating extrusion ring drives the three driving push shafts to move through the three arc-shaped push frames, thereby driving the three extrusion push frames to move.

3. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 2, characterized in that: A push-back spring is connected between the mounting cover and the extrusion push frame, and a pressing spring is connected between the sleeve and the pressing sleeve; An adapting groove is provided on the abutting sleeve, and the connecting hose passes through the adapting groove.

4. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 3, characterized in that: Three clamping frames are equidistantly mounted on the outer side of the sleeve, and the three injection cylinders are respectively clamped on the three clamping frames; A lower pressing frame is slidably mounted on each of the three clamping frames, and a centralized pushing frame is mounted on the three lower pressing frames. The centralized pushing frame is pushed to synchronously drive the three lower pressing frames to move.

5. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 1, characterized in that: The active disinfection device further comprises an L-shaped rod, wherein the L-shaped rod is mounted on the top inner wall of the sleeve; A threaded groove is provided on the lifting rotating rod, and one end of the L-shaped rod extends into the threaded groove.

6. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 5, characterized in that: The bottom side of the boom is provided with an installation cavity, and the top end of the lifting rod is rotatably installed in the installation cavity; A rotating plate is rotatably installed in the installation cavity. A descending spring is provided in the installation cavity. The bottom end of the descending spring contacts the top side of the rotating plate.

7. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 1, characterized in that: The finger support device further comprises a closed bottom plate, the closed bottom plate being mounted on the bottom side of the sleeve, and two sliding sealing plates being slidably mounted on the closed bottom plate, the two sliding sealing plates being used to close the sleeve; Two sliding grooves are provided on the bottom side of the closed bottom plate, and the two sliding sealing plates are slidably installed in the two sliding grooves. Two opening and closing rotating rods are rotatably installed on the closed bottom plate, and the two opening and closing rotating rods are movably installed on the two sliding sealing plates respectively.

8. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 7, characterized in that: Two opening and closing shafts are installed on the opening and closing rotating rod, and an opening and closing slide groove is opened on the sliding sealing plate, and one of the opening and closing shafts is slidably installed in the opening and closing slide groove; A U-shaped frame is slidably mounted on the bottom side of the closed bottom plate. The movement of the supporting slide is used to squeeze the U-shaped frame to move, and the movement of the U-shaped frame is used to push the two opening and closing rotating rods to rotate.

9. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 8, characterized in that: The closed bottom plate is provided with two mounting grooves, and the two opening and closing shafts are rotatably mounted in the two mounting grooves respectively; A sliding torsion spring is installed on the inner wall of the installation groove, and the other end of the sliding torsion spring is installed on the opening and closing shaft.

10. The adjustable needle assembly for minimally invasive local anesthesia-assisted analgesia according to claim 9, characterized in that: Both sides of the sleeve are provided with lifting slots, and the two supporting slides are slidably installed in the two lifting slots respectively; Two positioning grooves are provided on the inner wall of the lifting slide, and a push-out groove is provided on the supporting slide, and a positioning rod is movably installed in the push-out groove, one end of the positioning rod is stuck in one of the positioning grooves, and a positioning spring is installed at one end of the positioning rod, and the other end of the positioning spring is installed on the inner wall of the push-out groove.

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