Guide puncture device

Abstract

The invention discloses a puncture guiding device, and relates to the technical field of medical equipment. Comprising two guide rails, a movable frame is movably connected to the tops of the guide rails, and a rectangular groove is formed in the middle of the movable frame and divides the movable frame into a left side connecting frame and a right side connecting frame; a moving assembly is arranged on the side, opposite to the right connecting frame, of the left connecting frame and comprises a screw block. The movable assembly, the guide cylinder, the angle adjusting mechanism and the laser transmitter are arranged, during use, the movable frame is moved to the position over a focus, the position of the guide cylinder is adjusted through the movable assembly so that the guide cylinder can be located on the front left side or over the focus, and finally the angle of the guide cylinder is adjusted through the angle adjusting mechanism; and the guide cylinder is finely adjusted through the movable frame, so that the axis of the guide cylinder is located on the extension line of the connecting line of the mark point and the focus, and the device can quickly position the guide cylinder under the cooperation of the light beam emitted by the laser emitter.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a puncture guiding device. Background Art

[0002] Ultrasound-guided nerve block is a method of more accurately injecting drugs into the primary lesion under the dynamic monitoring of ultrasound visualization, in accordance with the laws of nerve course and innervation and skeletal muscle functional anatomy, to form a nerve block and thus achieve an anesthetic effect. Ultrasound-guided nerve block is simple, safe, and minimally invasive, and is therefore increasingly favored in the field of medical anesthesia.

[0003] However, ultrasound-guided nerve block has high technical requirements for anesthesiologists. It is a technical operation that can only be performed correctly after long-term professional training. During the operation, precise injection must be performed directly next to the diseased nerve or muscle or tendon to achieve the purpose of high treatment accuracy, definite effect and fewer side effects.

[0004] During the implementation of ultrasound-guided nerve block, the anesthesiologist needs to hold the ultrasound probe with one hand and use the puncture needle with the other hand to puncture, inject drugs upstream of the nerve, and achieve the effect of nerve anesthesia; the physician's two hands need to be precisely coordinated and used to achieve the effect of accurate detection and accurate drug administration, and the operation is relatively difficult; in addition, at present, a convenient puncture stent is also used to support the puncture. The puncture stent is generally fixed on the ultrasound probe, and the puncture needle is clamped on the needle clamp auxiliary device set next to the puncture stent, forming a certain angle with the ultrasound probe for puncture operation. However, the puncture stent is fixed on the ultrasound probe, but the ultrasound probe needs to move in real time during the process of detecting the nerve, which drives the needle clamp auxiliary device to move together, that is, follow-up. At this time, the stent and the needle clamp auxiliary device need to be adjusted. The whole operation process is complicated and even increases the workload of the physician. Summary of the invention

[0005] The object of the present invention is to provide a guiding puncture device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a guiding puncture device, comprising two guide rails, the top of the guide rails being movably connected to a movable frame, the middle of the movable frame being provided with a rectangular groove, the rectangular groove dividing the movable frame into a left connecting frame and a right connecting frame;

[0007] A moving assembly is arranged on one side of the left connecting frame relative to the right connecting frame, and the moving assembly includes a wire block, and two extension blocks are formed on the right side of the wire block;

[0008] A fixed block is fixed at the bottom end of the extension block, and a lateral adjustment component is arranged between the fixed blocks, and the lateral adjustment component moves laterally between the fixed blocks;

[0009] The lateral adjustment assembly and the fixed block are fixed by a locking portion;

[0010] A guide cylinder for the puncture needle to pass through is provided at the bottom of the lateral adjustment assembly;

[0011] An angle adjustment mechanism is provided on one side of the guide tube, which is used to adjust the angle between the central axis of the guide tube and the lesion;

[0012] A special-shaped shaft is fixed on one side of the right connecting frame relative to the left connecting frame, a slider is movably inserted on the shaft body of the special-shaped shaft, and the slider is radially limited by the special-shaped shaft and can only move along the axial direction of the special-shaped shaft;

[0013] The bottom end of the slider is provided with an elastic extrusion mechanism;

[0014] An ultrasonic probe is fixed at the bottom end of the elastic extrusion mechanism.

[0015] Furthermore, the moving component also includes a screw rod that is rollingly connected to the left connecting frame, the screw block is movably screwed to the screw rod, one side of the screw rod extends out of the left connecting frame, and a first knob is fixed to the end of the screw rod.

[0016] Furthermore, the lateral adjustment assembly includes a movable block movably connected to the fixed block, a connecting plate is movably provided between the inner plates of the movable block, and the guide cylinder is fixed between the two connecting plates.

[0017] Furthermore, the angle adjustment mechanism includes a first gear fixed between two connecting plates, a roller is rollingly connected between the two connecting plates, a second gear is fixed on the shaft of the roller, the first gear and the second gear are meshed with each other, a connecting shaft is rollingly connected between the two movable blocks, the first gear is fixed to the connecting shaft, one side of the roller is located in the bottom cavity of one of the movable blocks, a worm gear is fixed on its rod body, a worm is rollingly connected to the top of the movable block, the worm gear and the worm gear are meshed with each other, the top rod body of the roller extends out of the movable block, and a second knob is fixed at its end.

[0018] Furthermore, the locking portion includes a connecting groove connected to the sliding groove of the fixed block, a second stud is fixed to the side of the movable block, the second stud movably passes through the connecting groove, and a fastening nut is threaded on the rod body.

[0019] Furthermore, the elastic extrusion mechanism includes an electric telescopic rod fixed at the bottom end of the slider, a top plate is fixed at the end of the telescopic shaft, a bottom plate is arranged at the bottom of the top plate, a plurality of plug shafts are fixed at the top end of the bottom plate, the plug shafts are movably connected to the top plate, a plurality of springs are fixed between the top plate and the bottom plate, and a position adjustment component is arranged at the bottom of the bottom plate.

[0020] Furthermore, the position adjustment component includes a vertical plate fixed to the bottom end of the bottom plate, a first stud is fixed to one side of the vertical plate, a movable plate is movably inserted on the column of the first stud, and the movable plate and the vertical plate are fixed by a fastening nut.

[0021] Furthermore, an inclined plate is fixed to the top of each of the connecting plates, and a laser emitter is fixed between the inclined plates. The laser beam emitted by the laser emitter coincides with the central axis of the guide cylinder.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The guided puncture device is provided with a moving component, a guide cylinder, an angle adjustment mechanism and a laser emitter. When in use, the movable frame is moved to the position directly above the lesion, and the position of the guide cylinder is adjusted by the moving component so that it is located on the left front side or directly above the lesion. Finally, the angle of the guide cylinder is adjusted by the angle adjustment mechanism, and the guide cylinder is fine-tuned by the movable frame so that the axis of the guide cylinder is located on the extension line of the marking point and the lesion connection line. The device can quickly realize the positioning of the guide cylinder with the cooperation of the light beam emitted by the laser emitter. Since the guide cylinder is located above the human body and does not contact the human body, it has good stability and can support the guided puncture needle, effectively preventing the puncture needle from deviating from the guiding angle, so that the peripheral nerve at the lesion position can be blocked by the puncture needle.

[0024] At the same time, an elastic squeezing mechanism and a position adjustment component are provided, and the ultrasonic probe is integrated into the puncture device. After positioning is completed, the ultrasonic probe can be limited to the human body surface on one side of the lesion through the elastic squeezing mechanism and the position adjustment component, so that the needle tip is always kept within the ultrasonic range when the needle is inserted. The puncture process is observed in real time during sampling, avoiding the shaking of the ultrasonic probe due to manual holding of the ultrasonic probe, affecting the observation, reducing puncture injuries, simplifying the entire operation process, and reducing the workload of the doctor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is an axial view of the present invention after removing the guide rail;

[0027] Figure 3 A detailed diagram of the detection mechanism of the present invention;

[0028] Figure 4 A side axial view of the angle adjustment mechanism of the present invention;

[0029] Figure 5 Another side axial view of the angle adjustment mechanism of the present invention;

[0030] Figure 6 It is a half-section view of the angle adjustment mechanism of the present invention.

[0031] In the figure: 1. guide rail; 2. movable frame; 3. moving assembly; 301. screw rod; 302. screw block; 303. first knob; 4. guide cylinder; 401. connecting plate; 5. angle adjustment mechanism; 501. first gear; 502. roller; 503. second gear; 504. worm gear; 505. worm; 6. special-shaped shaft; 7. slider; 801. electric telescopic rod; 802. top plate; 803. bottom plate; 804. plug-in shaft; 805. spring; 806. vertical plate; 807. first stud; 808. movable plate; 9. ultrasonic probe; 10. fixed block; 101. connecting groove; 102. second stud; 11. inclined plate; 12. laser transmitter. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 6 As shown, the present invention provides a technical solution: a guided puncture device, comprising two guide rails 1. When the device is used, the guide rails 1 are placed on both sides of the bed and fixed. A movable frame 2 is movably connected to the top of the guide rails 1. After a person lies on the bed, the human body is located at the bottom of the movable frame 2. A rectangular groove is opened in the middle of the movable frame 2 for convenient operation of the relevant components of the device. It should be understood that the rectangular groove divides the movable frame 2 into a left connecting frame and a right connecting frame;

[0034] A moving assembly 3 is provided on one side of the left connecting frame relative to the right connecting frame. The moving assembly 3 includes a wire block 302. Two extension blocks are formed on the right side of the wire block 302. A fixed block 10 is fixed at the bottom end of the extension block. A lateral adjustment assembly is provided between the fixed blocks 10. The lateral adjustment assembly moves laterally between the fixed blocks 10.

[0035] The lateral adjustment component is fixed to the fixed block 10 via a locking portion, and a guide cylinder 4 for the puncture needle to pass through is provided at the bottom of the lateral adjustment component;

[0036] An angle adjustment mechanism 5 for adjusting the angle of the guide tube 4 is provided on one side of the guide tube 4, and is used to adjust the angle between the central axis of the guide tube 4 and the lesion;

[0037] A special-shaped shaft 6 is fixed on one side of the right connecting frame relative to the left connecting frame, and a slider 7 is movably inserted on the shaft body of the special-shaped shaft 6. It can be known that the slider 7 is radially limited by the special-shaped shaft 6 and can only move along the axial direction of the special-shaped shaft 6;

[0038] An elastic extrusion mechanism is provided at the bottom end of the slider 7 , and an ultrasonic probe 9 is fixed at the bottom end of the elastic extrusion mechanism.

[0039] The position of the guide tube 4 is adjusted so that it is located at the left front side or just above the lesion. Figure 1 As shown, the moving assembly 3 also includes a screw rod 301 that is rollingly connected to the left connecting frame, and a screw block 302 is movably screwed to the screw rod 301. One side of the screw rod 301 extends out of the left connecting frame, and a first knob 303 is fixed to its end.

[0040] When the first knob 303 is rotated, the screw rod 301 rotates, thereby driving the screw block 302 to verify that the screw rod 301 moves longitudinally, thereby adjusting the position of the guide cylinder 4.

[0041] To adjust the guide cylinder 4 in the horizontal direction, Figure 4 As shown, the lateral adjustment assembly includes a movable block movably connected to the fixed block 10 , and a connecting plate 401 is movably provided between the inner plates of the movable block. It should be noted that the guide cylinder 4 is fixed between the two connecting plates 401 .

[0042] To adjust the angle of the guide cylinder 4, Figure 4 and Figure 5 As shown, the angle adjustment mechanism 5 includes a first gear 501 fixed between two connecting plates 401, a roller 502 is rollingly connected between the two connecting plates 401, a second gear 503 is fixed on the shaft of the roller 502, and the first gear 501 and the second gear 503 are meshed with each other, a connecting shaft is rollingly connected between the two movable blocks, the first gear 501 is fixed to the connecting shaft, one side of the roller 502 is located in the bottom cavity of one of the movable blocks, a worm gear 504 is fixed on its rod body, a worm 505 is rollingly connected to the top of the movable block, and the worm 505 is meshed with the worm gear 504, the top rod body of the roller 502 extends out of the movable block, and a second knob is fixed at its end.

[0043] Specifically, in this embodiment, when in use, the movable frame 2 is moved to the position above the lesion, and the position of the guide cylinder 4 is adjusted by the moving component 3 to be located on the left front side or above the lesion. In actual operation, the operator avoids important organs and tissues through the image displayed on the display by the ultrasonic probe 9. At this time, it is necessary to give priority to the puncture angle. Corresponding to this device, the specific operation is as follows: the operator can first determine the position of the lesion target according to the imaging image, determine the puncture angle, and according to the puncture angle, the operator rotates the worm 505, and the worm 505 moves the worm 505. The rod 505 drives the worm gear 504 to rotate, and because the first gear 501 and the second gear 503 are meshed, the first gear 501 can drive the connecting plate 401 and the guide cylinder 4 fixed at the bottom of the connecting plate 401 to rotate, so that the axis of the guide cylinder 4 is parallel to the extension line of the connection line between the marking point and the lesion target point, and further fine-tuning the movable block and the movable frame 2 until the axis of the guide cylinder 4 coincides with the extension line of the connection line between the marking point and the lesion target point. At this time, the movable block is fixed by the locking part to complete the positioning of the guide cylinder 4.

[0044] It can be known that, since the worm 505 and the worm wheel 504 have a self-locking property, after adjustment, the guide cylinder 4 will not move due to external vibration.

[0045] Among them, Figure 4 As shown, the locking portion includes a connecting groove 101 connected to the sliding groove of the fixed block 10, and a second stud 102 is fixed on the side of the movable block. The second stud 102 movably passes through the connecting groove 101, and a fastening nut is screwed on the rod body, that is, tightening the fastening nut can achieve the fixation of the second stud 102, thereby achieving the fixation of the movable block.

[0046] In order to quickly realize the positioning of the guide cylinder 4, as Figure 6 As shown, an inclined plate 11 is fixed at the top of the connecting plate 401, and a laser emitter 12 is fixed between the inclined plates 11. The color of the light emitted by the laser emitter 12 can be red light or blue light. It is preferred to use a laser emitter 12 that emits red light. It can be known that the laser light beam emitted by the laser emitter 12 coincides with the central axis of the guide cylinder 4.

[0047] The provision of the laser emitter 12 can achieve rapid fine-tuning of the movable block and the movable frame 2, thereby improving installation efficiency.

[0048] When the positioning is completed, the ultrasonic probe 9 can be limited to the human body surface on one side of the lesion through the elastic squeezing mechanism and the position adjustment component, so that the needle tip always remains within the ultrasonic range when the needle is inserted. The puncture process is observed in real time during sampling to prevent the puncture needle from deviating. Finally, the drug is administered through the puncture needle to the lesion position to achieve blocking of the peripheral nerves at the lesion position.

[0049] like Figure 3 As shown, the elastic extrusion mechanism includes an electric telescopic rod 801 fixed to the bottom end of the slider 7, a top plate 802 is fixed to the end of the telescopic shaft, a bottom plate 803 is arranged at the bottom of the top plate 802, three plug-in shafts 804 are fixed to the top of the bottom plate 803, and the plug-in shafts 804 are movably connected to the top plate 802, three springs 805 are fixed between the top plate 802 and the bottom plate 803, the plug-in shafts 804 are located in the spiral coil of the spring 805, and a position adjustment component is arranged at the bottom of the bottom plate 803.

[0050] To adjust the position and angle of the ultrasonic probe 9 so that the puncture process of the puncture needle can be monitored in real time, such as Figure 3 As shown, the position adjustment component includes a vertical plate 806 fixed to the bottom end of the bottom plate 803, a first stud 807 is fixed on one side of the vertical plate 806, a movable plate 808 is movably inserted on the column of the first stud 807, and the movable plate 808 and the vertical plate 806 are fixed by a fastening nut.

[0051] Specifically, in this embodiment, when in use, the ultrasonic probe 9 is lifted by hand, the spring 805 is compressed and contracted, the bottom plate 803 moves up, the ultrasonic probe 9 is rotated so that its bottom surface contacts the human skin, and the ultrasonic probe 9 is moved left and right. At this time, the slider 7 moves on the special-shaped shaft 6. When the ultrasonic probe 9 is located at the optimal monitoring position, the ultrasonic probe 9 is released, the spring 805 is reset, the bottom surface of the ultrasonic probe 9 is squeezed against the human skin, and the movable plate 808 and the vertical plate 806 are fixed by tightening the nut. Finally, the electric telescopic rod 801 is controlled to extend by the controller. At this time, under the elastic force of the spring 805, the static friction between the ultrasonic probe 9 and the skin increases, thereby preventing the ultrasonic probe 9 from being separated from the skin.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A puncture guide device, comprising two guide rails (1), characterized in that: The top of the guide rail (1) is movably connected to a movable frame (2), and a rectangular groove is provided in the middle of the movable frame (2), which divides the movable frame (2) into a left connecting frame and a right connecting frame; A moving assembly (3) is arranged on one side of the left connecting frame relative to the right connecting frame, the moving assembly (3) comprises a wire block (302), and two extension blocks are formed on the right side of the wire block (302); A fixed block (10) is fixed to the bottom end of the extension block, a lateral adjustment component is arranged between the fixed blocks (10), and the lateral adjustment component moves laterally between the fixed blocks (10); The lateral adjustment component and the fixed block (10) are fixed to each other via a locking portion; A guide cylinder (4) for the puncture needle to pass through is arranged at the bottom of the lateral adjustment assembly; An angle adjustment mechanism (5) is provided on one side of the guide tube (4) for adjusting the angle between the central axis of the guide tube (4) and the lesion; A special-shaped shaft (6) is fixed on one side of the right connecting frame relative to the left connecting frame, a slider (7) is movably inserted on the shaft body of the special-shaped shaft (6), and the slider (7) is radially limited by the special-shaped shaft (6) and can only move along the axial direction of the special-shaped shaft (6); The bottom end of the slider (7) is provided with an elastic extrusion mechanism; An ultrasonic probe (9) is fixed to the bottom end of the elastic extrusion mechanism.

2. A guiding puncture device according to claim 1, characterized in that: The moving assembly (3) further comprises a screw rod (301) which is rollingly connected to the left connecting frame, a screw block (302) which is movably screwed to the screw rod (301), one side of the screw rod (301) extends out of the left connecting frame, and a first knob (303) is fixed to the end of the screw rod (301).

3. A guiding puncture device according to claim 1, characterized in that: The lateral adjustment assembly comprises a movable block movably connected to a fixed block (10), a connecting plate (401) is movably arranged between inner plates of the movable block, and the guide cylinder (4) is fixed between the two connecting plates (401).

4. A puncture guide device according to claim 3, characterized in that: The angle adjustment mechanism (5) comprises a first gear (501) fixed between two connecting plates (401); a roller (502) is rollingly connected between the two connecting plates (401); a second gear (503) is fixed on the shaft of the roller (502); the first gear (501) and the second gear (503) are meshed with each other; a connecting shaft is rollingly connected between the two movable blocks; the first gear (501) and the connecting shaft are fixed; one side of the roller (502) is located in a bottom cavity of one of the movable blocks; a worm gear (504) is fixed on its rod body; a worm (505) is rollingly connected to the top of the movable block; the worm gear (505) and the worm gear (504) are meshed with each other; the top rod of the roller (502) extends out of the movable block; a second knob is fixed on its end.

5. A puncture guide device according to claim 1, characterized in that: The locking portion comprises a connecting groove (101) connected to the sliding groove of the fixed block (10), a second stud (102) is fixed to the side of the movable block, the second stud (102) movably passes through the connecting groove (101), and a fastening nut is screwed on the rod body.

6. A puncture guide device according to claim 1, characterized in that: The elastic extrusion mechanism comprises an electric telescopic rod (801) fixed at the bottom end of a slider (7), a top plate (802) being fixed at the end of the telescopic shaft, a bottom plate (803) being arranged at the bottom of the top plate (802), a plurality of plug-in shafts (804) being fixed at the top end of the bottom plate (803), the plug-in shafts (804) being movably plugged into the top plate (802), a plurality of springs (805) being fixed between the top plate (802) and the bottom plate (803), and a position adjustment component being arranged at the bottom of the bottom plate (803).

7. A puncture guide device according to claim 6, characterized in that: The position adjustment assembly comprises a vertical plate (806) fixed to the bottom end of the bottom plate (803), a first stud (807) is fixed to one side of the vertical plate (806), a movable plate (808) is movably inserted on the column of the first stud (807), and the movable plate (808) and the vertical plate (806) are fixed by a fastening nut.

8. A puncture guide device according to claim 3, characterized in that: The top ends of the connecting plates (401) are all fixed with inclined plates (11), laser emitters (12) are fixed between the inclined plates (11), and the laser beam emitted by the laser emitter (12) coincides with the central axis of the guide cylinder (4).

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