An automatic endoscopic ultrasound puncture biopsy needle

Abstract

This invention discloses an automatic endoscopic ultrasonic biopsy needle, relating to the field of ultrasonic biopsy needle technology. It includes a lower handle and an upper handle, with a mandrel between them. The mandrel has a sleeve structure. An actuator is located within the upper handle and mounted on the mandrel. The actuator includes an actuator housing, within which a stator is located. Bearings are installed at both ends of the stator, and a rotor is located within the stator. Magnets are located in the symmetrical end walls of the rotor. This invention replaces the manually pushed-pull upper handle for puncture with an automatically pushed-pull upper handle, reducing the workload for doctors or nurses during surgery, lowering the risk of human error, and increasing efficiency. It can also significantly reduce surgical time. Furthermore, multiple modes can be adjusted for convenient control of puncture depth and number of punctures, making it convenient and quick to use.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic biopsy needle technology, specifically an automated endoscopic ultrasonic biopsy needle. Background Technology

[0002] Because endoscopic puncture needles need to be used in conjunction with the endoscope, the sheath of the puncture needle must be inserted into the endoscope's channel through the forceps opening, and the puncture needle must be fixed to the endoscope's channel opening using Luer threads before it can be used. Currently, due to the low efficiency and effectiveness of lesion sample collection, multiple punctures are required for the same lesion, significantly increasing the workload of doctors and nurses. However, the ultrasonic puncture needles currently used by doctors are all manual. Since multiple punctures are needed for the same lesion during the procedure to obtain sufficient effective lesion tissue, manual ultrasonic puncture needles greatly increase the operator's workload. The large amount of manual manipulation during surgery carries higher risks, and the longer manual puncture time further prolongs the operation time and increases the risks. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic endoscopic ultrasound puncture biopsy needle, which solves the problems of existing ultrasound puncture needles being manually controlled, unable to automatically puncture, having low efficiency, and high risk.

[0004] The present invention is achieved through the following technical solution.

[0005] An automatic endoscopic ultrasonic biopsy needle of the present invention includes a lower handle and an upper handle, with a mandrel provided between the lower and upper handles and fixed on the lower handle. The mandrel has a sleeve structure, with threads on its outer surface and a through-hole groove inside. An actuator is provided inside the upper handle and is mounted on the mandrel. The actuator includes an actuator housing, which is fixedly connected to the upper handle. A stator is provided inside the actuator housing, with bearings installed at both ends of the stator. A rotor is provided inside the stator, and magnets are provided in the symmetrical end walls of the rotor.

[0006] Furthermore, the rotor is threadedly engaged with the spindle.

[0007] Furthermore, a sheath adjuster is provided at the end of the spindle located inside the lower handle, and a locking device is provided inside the sheath adjuster, and a sheath is provided inside the locking device.

[0008] Furthermore, the lower outer surface of the lower handle is provided with a display and a mode adjuster.

[0009] Furthermore, a laser rangefinder sensor is fixedly installed inside the lower side of the lower handle.

[0010] Furthermore, the upper handle is provided with a drive controller PCB board, which is used to control the driver. A battery pack is provided on one side of the drive controller PCB board to supply power to the drive controller PCB board.

[0011] Furthermore, the mandrel is provided with a metal sleeve inside, and a metal guide tube is slidably disposed inside the metal sleeve, and a limiting tube is provided on the metal guide tube.

[0012] Furthermore, the other end of the metal sleeve is used to connect to a Luer connector, which is used to connect to an external negative pressure suction device.

[0013] Furthermore, the Luer connector is equipped with an adapter pipe.

[0014] The beneficial effects of the present invention are as follows: The automatic biopsy needle of the present invention can complete the puncture work in a fully automatic manner. By changing the puncture to an automatic push-pull upper handle, the amount of operation of doctors or nurses during the operation is reduced, the risk of human operation is reduced, and the efficiency is high. It can also significantly reduce the operation time. At the same time, multiple modes can be connected to facilitate the control of puncture depth and number of punctures, and it is convenient and quick to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of the structure of an embodiment of the present invention;

[0017] Figure 2 is an internal schematic diagram of an embodiment of the present invention;

[0018] Figure 3 is a schematic diagram of the structure of the driver 09 according to an embodiment of the present invention;

[0019] Figure 4 is a schematic diagram of the rotor 12 in an embodiment of the present invention;

[0020] Figure 5 is a schematic diagram of the structure of the magnet 13 in an embodiment of the present invention;

[0021] Figure 6 is a schematic diagram of the assembly of the metal conduit 21 according to an embodiment of the present invention. Detailed Implementation

[0022] The following is combined Figure 1-6The present invention will be described in detail below. For ease of description, the directions referred to below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of the projection relationship are consistent in all directions: up, down, left, right, front, and back.

[0023] Combined with appendix Figure 1-6 An automated endoscopic ultrasonic biopsy needle includes a lower handle 04 and an upper handle 06. A mandrel 05 is provided between the lower handle 04 and the upper handle 06, and the mandrel 05 is fixed to the lower handle 04. The mandrel 05 has a sleeve structure, with threads on its outer surface and a through-hole groove inside. An actuator 09 is provided inside the upper handle 06 and is mounted on the upper mandrel 05. The actuator 09 includes an actuator housing 16, and a stator 11 is provided inside the actuator housing 16. Both ends of the stator 11 are mounted on... The stator 11 is equipped with a bearing 10 and a rotor 12 is provided inside the stator 11. The rotor 12 is threadedly engaged with the thread on the outer surface of the spindle 05. Magnets 13 are provided in the end walls of the two symmetrical ends of the rotor 12. The driver 09 drives the upper handle 06 to move. The upper handle 06 is pushed and pulled cyclically by the thread on the outer surface of the spindle 05. The rotation of the rotor 12 drives the driver 09 to move horizontally on the spindle 05. The driver 09 is fixedly connected to the upper handle 06. Therefore, the drive gear 09 further drives the upper handle 06 to move horizontally.

[0024] The upper handle 06 is moved by the driver 09, and the automatic push and pull movement of the handle is realized by the driver, which reduces the amount of operation required by the operator and thus reduces the human risk caused by cumbersome operation.

[0025] A sheath adjuster 02 is provided at the end of the spindle 05 located inside the lower handle 04. A locking device 03 is provided inside the sheath adjuster 02. A sheath 01 is provided inside the locking device 03. The locking device 03 is a push-button type. The sheath adjuster 02 and the locking device 03 are used together. The locking and unlocking of the sheath adjuster 02 is achieved by pressing the locking device 03. Then, when the locking device 03 is unlocked, the length of the sheath adjuster 02 extending out of the device can be adjusted by pushing and pulling, thereby driving the sheath 01 to move. Medical staff can quickly adjust the extension position of the sheath 01 and select the appropriate working length through manual control.

[0026] When the upper handle 06 performs a cyclic pushing and pulling action, it drives the sheath regulator 02 to move, thereby driving the sheath regulator 02 to move.

[0027] The lower outer surface of the lower handle 04 is provided with a display 07 and a mode adjuster 08. The mode adjuster 08 can adjust the control mode of the device and can achieve any puncture depth.

[0028] A laser rangefinder 17 is fixedly installed inside the lower side of the lower handle 04. The laser rangefinder 17 is used to detect the distance the upper handle 06 moves and the number of times it is pushed and pulled repeatedly.

[0029] The upper handle 06 is equipped with a drive controller PCB board 18, which is used to control the driver 09. A battery pack 20 is provided on one side of the drive controller PCB board 18 to supply power to the drive controller PCB board 18. The drive controller PCB board 18 is electrically connected to the mode adjuster 08. By changing the control mode of the mode adjuster 08, the distance and frequency of the horizontal movement of the upper handle 06 can be controlled, thereby achieving any puncture depth.

[0030] When in use, the spindle 05 does not rotate. The driver 09 is turned on and drives the rotor 12 in the driver 09 to rotate. The rotor 12 is threaded with the spindle 05. The rotation of the rotor 12 drives the driver 09 to move horizontally. The driver 09 is fixed to the upper handle 06 as a whole. When the driver 09 moves horizontally, it drives the upper handle 06 to move horizontally.

[0031] The mandrel 05 is provided with a metal sleeve 23 inside, and a metal conduit 21 is slidably provided inside the metal sleeve 23. A limiting tube 22 is provided on the metal conduit 21. The limiting tube 22 and the metal conduit 21 are welded together to ensure that the metal conduit 21 is tightly clamped on the plastic shell.

[0032] The metal catheter 21 is mainly used to allow the needle to pass through the metal catheter 21. When pushing the needle, it can reduce the space for the needle to bend, thereby better transmitting force.

[0033] The metal sleeve 23 is fitted over the metal guide tube 21 to ensure that the handle is relatively straight when moving. Due to the error in the processing of the plastic parts, the metal guide tube is not completely straight when installed inside. The metal sleeve 23 can also make the metal guide tube 21 more straight and set inside the spindle 05, thereby reducing the bending space of the needle tube during the pushing process and thus better transmitting force.

[0034] The other end of the metal sleeve 23 is used to connect to the Luer connector 19, which is used to connect to an external negative pressure aspirator. The negative pressure aspirator transmits the suction force through the Luer connector 19 to the needle to aspirate the body tissue obtained from the biopsy.

[0035] The Luer connector 19 is equipped with an adapter tube 24, which can be replaced with different sizes and types. When the device is adapted to different needles, only the adapter tube 24 needs to be replaced to adapt to different needles. Since the Luer connector is more expensive than the adapter tube, replacing the adapter tube 24 is more economical than replacing the Luer connector 19.

[0036] In use, insert the sheath 01 into the ultrasonic endoscope channel, press and hold the locking device 03, pull the sheath adjuster 02 to select the appropriate sheath 01 length, release the locking device 03, and then fix the sheath adjuster 02 onto the ultrasonic endoscope. Use the mode adjuster 08 to select the pushing distance, retraction distance, and number of pushes of the upper handle 06.

[0037] The signal from the mode adjuster 08 is transmitted wirelessly to the drive controller PCB board 18 inside the upper handle 06.

[0038] The laser rangefinder 17 installed in the lower handle 04 sends a signal when it detects that the distance pushed by the upper handle 06 has reached the set value. The signal is transmitted to the receiver of the upper handle via a wireless transmitter. The receiver receives the signal and controls the upper handle to retract. Then, it controls the upper handle to repeat the above action according to the set number of punctures until all the punctures are completed.

[0039] Working Principle: The sheath 01 of the ultrasonic biopsy needle is inserted into the endoscope channel. Using the sheath adjuster 02, the doctor adjusts the length of the sheath 01 as needed. Then, the ultrasonic biopsy needle is fixed to the endoscope interface. The doctor first manually controls the upper handle 06 to determine the insertion distance and retraction distance of the needle into the lesion (the needle movement distance is displayed in real time on the monitor). Then, the puncture depth, retraction distance, and number of punctures are set on the mode adjuster 08. The switch on the mode adjuster 08 is activated, and the upper handle 06 begins the puncture action. When the upper handle 06 moves the set distance, the puncture stops and retracts. When the retraction distance reaches the set value, the puncture begins again. This process is repeated until the set number of punctures is reached. On the last retraction, the needle returns to the initial position (the distance displayed on the monitor is 0).

[0040] Working principle of the actuator: The spindle 05 and the lower handle 04 are fixed together. When the device is in use, the lower handle 04 is fixed on the endoscope, and the spindle 05 is stationary. When the actuator 09 moves, the rotor 12 rotates. The rotor 12 rotates along the thread on the spindle 05 and moves horizontally. The horizontal movement of the rotor 12 drives the horizontal movement of the actuator 09, thereby driving the horizontal movement of the upper handle 06, achieving the extension and retraction of the needle.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automated endoscopic ultrasonic biopsy needle, characterized in that: The device includes a lower handle (04) and an upper handle (06). A spindle (05) is provided between the lower handle (04) and the upper handle (06). The spindle (05) is fixed on the lower handle (04). The spindle (05) is a sleeve structure. The outer surface of the spindle (05) is threaded, and the inside is provided with a through hole. An actuator (09) is provided inside the upper handle (06). The actuator (09) is installed on the spindle (05). The actuator (09) includes an actuator housing (16). The actuator housing (16) is fixedly connected to the upper handle (06). A stator (11) is provided inside the actuator housing (16). Bearings (10) are installed at both ends of the stator (11). A rotor (12) is provided inside the stator (11). Magnets (13) are provided in the symmetrical end walls of the rotor (12). The rotor (12) is threadedly engaged with the spindle (05). The end of the spindle (05) located in the lower handle (04) is provided with a sheath adjuster (02), the sheath adjuster (02) is provided with a locking device (03), and the locking device (03) is provided with a sheath (01). The lower handle (04) has a display (07) and a mode adjuster (08) on its lower outer surface. The upper handle (06) is provided with a drive controller PCB board (18), which is used to control the driver (09). A battery pack (20) is provided on one side of the drive controller PCB board (18) for powering the drive controller PCB board (18). The drive controller PCB board (18) is electrically connected to the mode adjuster (08). By changing the control mode of the mode adjuster (08), the distance and frequency of the horizontal movement of the upper handle (06) can be controlled, thereby achieving any puncture depth. The mandrel (05) is provided with a metal sleeve (23) inside, and a metal conduit (21) is slidably provided inside the metal sleeve (23). The metal conduit (21) is used to allow the needle to pass through the metal conduit (21), and a limiting tube (22) is provided on the metal conduit (21).

2. The automated endoscopic ultrasonic biopsy needle according to claim 1, characterized in that: A laser rangefinder (17) is fixedly installed inside the lower side of the lower handle (04).

3. The automated endoscopic ultrasonic biopsy needle according to claim 1, characterized in that: One end of the metal sleeve (23) is used to connect to the Luer connector (19), which is used to connect to an external negative pressure suction device.

4. The automatic endoscopic ultrasonic puncture biopsy needle according to claim 3, characterized in that: The Luer connector (19) is equipped with a transfer pipe (24).

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