Bone marrow puncture collection device and use method thereof

Abstract

The present invention relates to the field of bone marrow collection technology, and more specifically to a bone marrow puncture collection device and its use method, comprising a bone marrow collection mechanism, the bone marrow collection mechanism including an adjustable bracket, a hydraulic rod 1 fixedly connected to the bottom wall of the top of the adjustable bracket, the hydraulic rod 1 fixedly connected to a housing, a U-shaped frame 1 fixedly connected to the outer wall of one side of the housing near the bottom end, the U-shaped frame 1 slidably plugged with a puncture mechanism, and a square rod 1 clamped to the outer wall of the U-shaped frame 1. In the present invention, a piezoresistive pressure sensor can detect the amount of resistance encountered by the needle tip of a needle. When the needle punctures the periosteum, the piezoresistive pressure sensor can detect the increase in resistance, thereby reversely driving a motor 1, causing the needle to rotate. By rotating the needle, the periosteum can be penetrated more smoothly, effectively reducing damage to surrounding tissue, preventing the needle tip from slipping, and ensuring the accuracy of the puncture.

Description

Technical Field

[0001] The present invention relates to the technical field of bone marrow collection, and in particular to a bone marrow puncture collection device and a method for using the same. Background Art

[0002] A bone marrow aspiration device is a medical device used to collect samples from human bone marrow. Its use primarily involves positioning, puncturing, extracting, and storing samples. An experienced physician uses a needle to perform the puncture, typically targeting the pelvis. Once the needle penetrates the bone, the core needle is removed, a syringe is connected, and an appropriate amount of bone marrow fluid is extracted. An assistant then performs a rapid smear of the fluid to prevent coagulation and cell rupture. The physician then inserts the core needle back into the needle, removes the needle, and stops the bleeding.

[0003] Current bone marrow aspiration equipment requires high skill and experience, making it unsuitable for inexperienced physicians. Furthermore, while local anesthesia is typically administered before the puncture, patients may still experience pain during the periosteum insertion, which can trigger anxiety and fear. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a bone marrow puncture collection device and a method of using the same. The piezoresistive pressure sensor can detect the resistance at the needle tip of the needle. When the needle pierces the periosteum, the piezoresistive pressure sensor can detect the increase in resistance, and then reversely drive motor No. 1 to drive the needle to rotate. By rotating the needle, the periosteum can be penetrated more smoothly, effectively reducing damage to surrounding tissues, avoiding needle tip slippage, and ensuring the accuracy of puncture. According to the puncture depth, motor No. 1 is driven forward to drive spur gear No. 2 to engage with ring gear No. 2, so that circular shell No. 3 rotates to drive ring frame No. 1 to move up and down, and drive the needle to move up and down in the needle sleeve to adjust the exposed length of the needle tip of the needle, effectively avoiding excessive puncture. By controlling the puncture depth, unnecessary stimulation to surrounding tissues can be reduced, thereby alleviating the patient's pain and discomfort, avoiding the impact of diagnostic results due to puncture too deep or too shallow, and effectively improving the sampling quality.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A bone marrow puncture and collection device, comprising a bone marrow collection mechanism, the bone marrow collection mechanism comprising an adjustable bracket, a hydraulic rod 1 fixedly connected to the bottom wall of the top of the adjustable bracket, the hydraulic rod 1 fixedly connected to a housing, a U-shaped frame 1 fixedly connected to the outer wall of one side of the housing near the bottom end, a puncture mechanism slidably plugged into the U-shaped frame 1, a square rod 1 clamped to the outer wall of the U-shaped frame 1, a skin tensioning mechanism fixedly connected to the top of the adjustable bracket near the side of the housing, a position shifting mechanism fixedly connected to the inside of the housing near the puncture mechanism, and a bone marrow smear mechanism fixedly connected to the inside of the housing near the side of the skin tensioning mechanism;

[0007] The puncture mechanism includes a circular shell 1, a needle sleeve is rotatably connected to the interior of the circular shell 1, a circular shell 2 is fixedly connected to the inner wall of the circular shell 1 near the needle sleeve, a No. 1 motor is fixedly connected to the interior of the circular shell 2, a one-way shaft 1 is sleeved and rotatably connected to the outer wall of the rotating shaft of the No. 1 motor, a spur gear 1 is sleeved and fixedly connected to the outer wall of the one-way shaft, a gear ring 1 is sleeved and fixedly connected to the outer wall of the needle sleeve located inside the circular shell 1, the spur gear 1 and the gear ring 1 are meshed for transmission, and a piezoresistive pressure sensor is fixedly connected to the bottom end of the circular shell 1.

[0008] Furthermore, the outer wall of the rotating shaft of the No. 1 motor is sleeved and rotatably connected with a one-way shaft 2, the outer wall of the one-way shaft 2 is sleeved and fixedly connected with a spur gear 2, the bottom end of the circular shell 1 is rotatably connected with a circular shell 3, the outer wall of one end of the circular shell 3 is sleeved and fixedly connected with a gear ring 2, the gear ring 2 is meshed with the spur gear 2 for transmission, a reciprocating groove is provided inside the circular shell 3, four square holes 1 are provided on the outer wall of the needle sleeve at equal angles around its axis near the bottom end, a thorn needle is slidably inserted into one of the square holes inside the needle sleeve, the outer wall of one end of the thorn needle is located outside the needle sleeve and is rotatably connected to a ring frame 1, the outer wall of the ring frame 1 is screwed together with the reciprocating groove, and a capacitive sensor is fixedly connected to the outer wall of one side of the U-shaped frame 1.

[0009] Preferably, the bottom end of the needle sleeve is rotatably connected to a semiconductor refrigeration plate, the outer wall of the semiconductor refrigeration plate is sleeved with a pad, and the outer wall of the semiconductor refrigeration plate is fixedly connected to the outer wall of the bottom end of the circular shell.

[0010] Preferably, the skin tightening mechanism includes an L-shaped frame 2, the outer wall of the L-shaped frame 2 is fixedly connected to the outer wall of the adjustable bracket, the outer wall of one end of the L-shaped frame 2 is fixedly connected to the frame, the bottom walls on both sides of the frame are provided with square grooves 2, the inner walls of the square grooves 2 are rotatably connected to rubber wheels near the two side positions, and a spur gear 3 is fixedly connected between the outer walls of the two rubber wheels, and square holes 2 are provided on the outer walls of both sides of the frame near the center position, and the inner wall of one side of the square groove 2 is fixedly connected to a rotating seat 1 near the center position, and the rotating seat 1 is rotatably connected to a spur gear 4, and the square groove 2 is slidably plugged with a tooth plate, the tooth plate is meshed with the spur gear 4 for transmission, and the spur gear 4 is meshed with the spur gear 3 for transmission, and a spring 2 is fixedly connected between the outer wall of one end of the tooth plate and the outer wall of the frame, and the outer walls on both sides of the U-shaped frame are fixedly connected to the L-shaped frame 1 near the center position.

[0011] Preferably: the shifting mechanism includes a hydraulic rod 2, the outer wall of the hydraulic rod 2 is fixedly connected to the inner wall of the top of the shell, the outer wall of one end of the hydraulic rod 2 is fixedly connected to a circular shell 4, the inside of the circular shell 4 is fixedly connected to the second motor, the outer wall of the rotating shaft of the No. 2 motor is fixedly connected to a square rod 2, the outer wall of one end of the square rod 2 is fixedly connected to an electromagnet, the outer wall of the electromagnet is fixedly connected to two spring telescopic rods 1 at equal angles around its axis, the outer wall of one end of the spring telescopic rod is fixedly connected to a magnetic block, the needle core is slidably inserted into the needle sleeve or the needle, and the outer wall of the needle core is provided with several square grooves 1 at equal angles around its axis near the top position, the top wall of the needle sleeve is provided with a T-shaped slot, and inclined blocks are slidably inserted on both sides of the T-shaped slot, and a spring is fixedly connected between the outer wall of the inclined block and the inner wall of the T-shaped slot.

[0012] Preferably: the outer wall of one end of the square rod 2 is fixedly connected to the telescopic frame, one section of the outer wall of the telescopic frame is fixedly connected to the No. 3 motor near one end, the other section of the outer wall of the telescopic frame is fixedly connected to the rack, the outer wall of the rotating shaft of the No. 3 motor is sleeved and fixedly connected to the spur gear 5, the outer wall of the spur gear 5 is engaged with the rack for transmission, the outer wall of one end of the telescopic frame is fixedly connected to the ring frame 2, and the outer wall of the ring frame 2 is clamped with a syringe.

[0013] Preferably: the bone marrow aspiration smear mechanism includes a suction and pressing unit and a scraping unit, the suction and pressing unit includes a hydraulic rod three, the outer wall of the hydraulic rod three is fixedly connected to the inner wall of the shell, the outer wall of one end of the hydraulic rod three is fixedly connected to the square rod three, the outer wall of one end of the square rod three is fixedly connected to the spring telescopic rod two, the outer wall of one end of the spring telescopic rod two is fixedly connected to the arc plate, and one end of the square rod three is fixedly connected to the arc frame at the hydraulic rod three.

[0014] Preferably: the scraping unit includes a hydraulic rod four and a spring telescopic rod three, the outer wall of the hydraulic rod four is fixedly connected to the outer wall of one side of the shell near the bottom end, the outer wall of one end of the hydraulic rod four is fixedly connected to a U-shaped frame two, the outer wall of the U-shaped frame two is slidably inserted with glass pieces near the two sides, the outer walls of both sides of the U-shaped frame two are provided with sliding grooves, the outer wall of the spring telescopic rod three is fixedly connected to the inner wall of the shell, the outer wall of one end of the spring telescopic rod three is fixedly connected to a square plate, the outer walls of both ends of the square plate are fixedly connected to a rotating seat two, a scraper is fixedly connected between the two outer walls of the rotating seat two, one end of the rotating seat two is rotatably connected to a round rod, and the outer wall of the round rod is slidably inserted into the sliding groove.

[0015] A method for using a bone marrow puncture and collection device, characterized in that the specific steps of using the bone marrow puncture and collection device are:

[0016] Step 1: During operation, the puncture site is determined by human imaging technology, disinfection and local anesthesia are performed, the adjustable bracket is adjusted until the frame is close to the marrow extraction position, the electromagnet attracts the needle core, the needle length is adjusted through a series of mechanical movements, and the semiconductor cooling plate is driven to pre-cool the needle;

[0017] Step 2: The needle core is driven back to the needle sleeve, the electromagnet cancels the adsorption of the needle core and limits the position. The position of the needle tip is detected by the capacitive sensor. The hydraulic rod drives the puncture mechanism to move downward, and the rubber wheel rotates to tighten the skin at the pulp extraction site.

[0018] Step 3: When the needle tip touches the periosteum, the piezoresistive pressure sensor detects a change in resistance, and motor 1 drives in reverse, causing the needle tip and the core needle to rotate and penetrate the periosteum.

[0019] Step 4: Hydraulic rod 2 drives the needle core to move upward, and motor 2 drives the telescopic frame to rotate 90 degrees around hydraulic rod 2 and move downward to engage the syringe and needle. The bone marrow will flow into the syringe along the inside of the needle, driving the syringe upward. Motor 2 drives the syringe back to its original position, with the needle core facing the needle sheath.

[0020] Step 5: After the marrow is extracted, the needle is removed from the human body. The doctor stops the bleeding and presses the syringe piston to allow the bone marrow to drip onto the two glass slides. The scraper moves up and down along the track of the slide to quickly smear the bone marrow fluid on the glass slides. After the glass slides move out of the shell, the doctor can remove the glass slides.

[0021] Beneficial effects of the present invention:

[0022] 1. A hydraulic rod 1 is fixedly connected to the bottom wall of the top of the adjustable bracket, and the hydraulic rod 1 is fixedly connected to the shell, and a U-shaped frame 1 is fixedly connected to the outer wall of one side of the shell near the bottom end. The U-shaped frame 1 is slidably plugged with a puncture mechanism, and the outer wall of the U-shaped frame 1 is clamped with a square rod 1. A skin tightening mechanism is fixedly connected to the top of the adjustable bracket near the side of the shell, and a shifting mechanism is fixedly connected to the position of the puncture mechanism inside the shell. A bone marrow aspiration smear mechanism is fixedly connected to the side of the skin tightening mechanism inside the shell. The puncture mechanism mainly includes a round shell 1, a needle sleeve is rotatably connected inside the round shell 1, and a round shell 2 is fixedly connected to the inner wall of the round shell 1 near the needle sleeve. It is fixedly connected to motor No. 1, and the outer wall of the rotating shaft of motor No. 1 is socketed and rotatably connected with a one-way shaft 1, and a spur gear 1 is socketed and fixedly connected to the outer wall of the one-way shaft 1, and a ring gear 1 is socketed and fixedly connected to the outer wall of the needle sleeve located inside the circular shell 1. The spur gear 1 and the ring gear 1 are engaged for transmission, and a piezoresistive pressure sensor is fixedly connected to the bottom end of the circular shell 1. The piezoresistive pressure sensor can detect the resistance at the needle tip of the needle. When the needle pierces the periosteum, the piezoresistive pressure sensor can detect the increase in resistance, and then reversely drive motor No. 1 to drive the needle to rotate. By rotating the needle, the periosteum can be penetrated more smoothly, effectively reducing damage to surrounding tissues, avoiding slippage of the needle tip, and ensuring the accuracy of puncture.

[0023] 2. The outer wall of the rotating shaft of the No. 1 motor is sleeved and rotatably connected to the one-way shaft 2, and the outer wall of the one-way shaft 2 is sleeved and fixedly connected to the spur gear 2, and the bottom end of the circular shell 1 is rotatably connected to the circular shell 3, and the outer wall of the circular shell 3 is sleeved and fixedly connected to the gear ring 2, and the gear ring 2 is meshed with the spur gear 2 for transmission. A reciprocating groove is opened inside the circular shell 3, and four square holes 1 are opened at equal angles around the axis of the needle sleeve near the bottom end. A needle is slidably inserted into one of the square holes inside the needle sleeve, and the outer wall of one end of the needle is located outside the needle sleeve and is rotatably connected to a ring frame 1, and the ring frame An outer wall is screwed together with the reciprocating groove, and a capacitive sensor is fixedly connected to the outer wall of one side of the U-shaped frame. According to the puncture depth, the No. 1 motor is driven in the positive direction, which can drive the spur gear 2 to engage with the gear ring 2, so that the circular shell 3 rotates to drive the ring frame 1 to move up and down, and drive the needle to move up and down in the needle sleeve to adjust the exposed length of the needle tip of the needle, effectively avoiding excessive puncture. By controlling the puncture depth, unnecessary stimulation to the surrounding tissues can be reduced, thereby alleviating the patient's pain and discomfort, avoiding affecting the diagnosis results due to excessively deep or shallow puncture, and effectively improving the sampling quality.

[0024] 3. A semiconductor cooling chip is connected to the bottom of the needle sleeve through rotation, a protective pad is sleeved on the outer wall of the semiconductor cooling chip, and the outer wall of the semiconductor cooling chip is fixedly connected to the outer wall of the bottom end of the round shell. The semiconductor cooling chip is used to pre-cool the needle and the needle core, which can effectively reduce the temperature of the puncture site and the sensitivity of the nerve endings, thereby reducing the pain during puncture, avoiding pain and tension that make the patient shake the body, and effectively improving the success rate of puncture. Low temperature can reduce tissue reaction and inflammation at the puncture site, which helps to reduce postoperative swelling and pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 In the present invention Figure 1 Schematic diagram of the structure at a;

[0028] Figure 3 This is a schematic diagram of a cross-sectional structure of a circular shell in the present invention;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the puncture mechanism in the present invention;

[0030] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the skin tightening mechanism of the present invention;

[0031] Figure 6 It is a schematic structural diagram of the transposition mechanism in the present invention;

[0032] Figure 7 It is a schematic structural diagram of the pumping and pressure unit in the present invention;

[0033] Figure 8 It is a schematic structural diagram of the scraping unit in the present invention.

[0034] In the figure: 100, bone marrow collection mechanism; 110, adjustable bracket; 120, hydraulic rod 1; 121, housing; 122, U-shaped frame 1; 123, square rod 1; 124, L-shaped frame 1; 130, capacitive sensor; 200, puncture mechanism; 210, round housing 1; 211, piezoresistive pressure sensor; 212, round housing 2; 213, motor 1; 214, one-way shaft 1; 215, spur gear 1; 216, one-way shaft 2; 217, spur gear 2; 220, needle sleeve; 221, gear ring 1; 222, T-shaped slot 1; 223, oblique block; 224, spring 1; 225, square hole 1; 226, needle; 230, round shell 3; 231, gear ring 2; 232, reciprocating groove; 233, ring frame 1; 240, needle core; 241, square slot 1; 250, semiconductor cooling plate; 300, skin tensioning mechanism; 310, L-shaped frame 2; 311, frame; 312, square slot 2; 313, square hole 2; 3 20. Rubber wheel; 321. Spur gear three; 330. Rotating seat one; 331. Spur gear four; 332. Tooth plate; 333. Spring two; 400. Transposition mechanism; 411. Hydraulic rod two; 412. Round shell four; 413. Motor two; 414. Square rod two; 415. Electromagnet; 416. Spring telescopic rod one; 417. Magnetic block; 420. Telescopic frame; 421. Motor three; 422. Rack; 423. Spur gear five; 424. Ring frame two ; 425. Syringe; 500. Bone marrow aspiration smear mechanism; 510. Pumping and pressing unit; 511. Hydraulic rod three; 512. Square rod three; 513. Spring telescopic rod two; 514. Arc plate; 515. Arc frame; 520. Scraping unit; 521. Hydraulic rod four; 522. U-shaped frame two; 523. Glass sheet; 524. Slide; 525. Spring telescopic rod three; 526. Square plate; 527. Rotating seat two; 528. Round rod; 529. Scraper. DETAILED DESCRIPTION

[0035] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making any creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1-8As shown, a bone marrow puncture collection device includes a bone marrow collection mechanism 100, which includes an adjustable bracket 110. The bottom wall of the top of the adjustable bracket 110 is fixedly connected to a hydraulic rod 120, and the hydraulic rod 120 is fixedly connected to a shell 121. A U-shaped frame 122 is fixedly connected to the outer wall of one side of the shell 121 near the bottom end. The U-shaped frame 122 is slidably connected to the puncture mechanism 200. The outer wall of the U-shaped frame 122 is clamped with a square rod 123. The top of the adjustable bracket 110 is fixedly connected to a skin tightening mechanism 300 near the side of the shell 121. The inside of the shell 121 is close to the bottom end. A transposition mechanism 400 is fixedly connected near the puncture mechanism 200, and a bone marrow aspiration smear mechanism 500 is fixedly connected near the skin tensioning mechanism 300 inside the shell 121. The puncture mechanism 200 includes a round shell 1 210, and a needle sleeve 220 is rotatably connected inside the round shell 1 210. A round shell 212 is fixedly connected to the inner wall of the round shell 1 210 near the needle sleeve 220. A motor 213 is fixedly connected inside the round shell 212. The outer wall of the rotating shaft of the motor 213 is rotatably connected to a one-way shaft 1 214. The outer wall of the one-way shaft 1 214 is fixedly connected to a spur gear 1 215. The needle sleeve 2 The outer wall of 20 is located inside the circular shell 1 210 and is fixedly connected to the ring gear 1 221. The spur gear 1 215 is meshed with the ring gear 1 221 for transmission. The bottom end of the circular shell 1 210 is fixedly connected to the piezoresistive pressure sensor 211. The outer wall of the rotating shaft of the No. 1 motor 213 is sleeved and rotatably connected to the one-way shaft 216. The outer wall of the one-way shaft 216 is sleeved and fixedly connected to the spur gear 217. The bottom end of the circular shell 1 210 is rotatably connected to the circular shell 3 230. The outer wall of one end of the circular shell 3 230 is sleeved and fixedly connected to the ring gear 231. The ring gear 231 is meshed with the spur gear 217 for transmission. A reciprocating groove 232 is opened inside the circular shell 3 230. Four square holes 225 are provided on the outer wall of the needle sleeve 220 at equal angles around its axis near the bottom end. A needle 226 is slidably inserted into the square hole 225 inside the needle sleeve 220. The outer wall of one end of the needle 226 is located outside the needle sleeve 220 and is rotatably connected to a ring frame 233. The outer wall of the ring frame 233 is screwed into the reciprocating groove 232. The outer wall of one side of the U-shaped frame 122 is fixedly connected to the capacitive sensor 130. The bottom end of the needle sleeve 220 is rotatably connected to a semiconductor cooling plate 250. A protective pad is sleeved on the outer wall of the semiconductor cooling plate 250. The outer wall of the semiconductor cooling plate 250 is fixedly connected to the outer wall of the bottom end of the round shell 210.

[0037] The skin tightening mechanism 300 includes an L-shaped frame 310, the outer wall of the L-shaped frame 310 is fixedly connected to the outer wall of the adjustable bracket 110, the outer wall of one end of the L-shaped frame 310 is fixedly connected to a frame 311, the bottom walls on both sides of the frame 311 are provided with square grooves 312, the inner walls of the square grooves 312 are rotatably connected to rubber wheels 320 near the two sides, and a spur gear 321 is fixedly connected between the outer walls of the two rubber wheels 320, and square holes 313 are provided on the outer walls of both sides of the frame 311 near the center position, and a rotating seat 330 is fixedly connected to the inner wall of one side of the square groove 312 near the center position, and the rotating seat 330 is rotatably connected to the spur gear 4 331, and the square groove 312 is slidably connected with a tooth plate 332, which meshes with the spur gear 4 331 The transmission is combined, the spur gear 4 331 is meshed with the spur gear 3 321 for transmission, a spring 2 333 is fixedly connected between the outer wall of one end of the tooth plate 332 and the outer wall of the frame 311, and the outer walls of both sides of the U-shaped frame 122 are fixedly connected to the L-shaped frame 124 near the center position. The shifting mechanism 400 includes a hydraulic rod 2 411, the outer wall of the hydraulic rod 2 411 is fixedly connected to the inner wall of the top of the shell 121, the outer wall of one end of the hydraulic rod 2 411 is fixedly connected to the round shell 412, the inside of the round shell 412 is fixedly connected to the second motor 413, the outer wall of the rotating shaft of the second motor 413 is fixedly connected to the square rod 2 414, the outer wall of one end of the square rod 2 414 is fixedly connected to the electromagnet 415, and the outer wall of the electromagnet 415 is fixedly connected to two spring telescopic rods 411 at equal angles around its axis. 16. The outer wall of one end of the spring telescopic rod 416 is fixedly connected to a magnetic block 417. The needle core 240 is slidably inserted into the needle sleeve 220 or the needle 226. The outer wall of the needle core 240 is provided with a plurality of square grooves 241 at equal angles around its axis near the top position. The top wall of the needle sleeve 220 is provided with a T-shaped groove 222. The inner sides of the T-shaped groove 222 are slidably inserted with an oblique block 223. A spring 224 is fixedly connected between the outer wall of the oblique block 223 and the inner wall of the T-shaped groove 222. The outer wall of the square rod 414 at one end is fixedly connected to the telescopic frame 420. The outer wall of one section of the telescopic frame 420 is fixedly connected to the No. 3 motor 421 near one end. The outer wall of the other section of the telescopic frame 420 is fixedly connected to the rack 422. The rotating shaft of the No. 3 motor 421 The outer wall is sleeved and fixedly connected with a spur gear 5 423, and the outer wall of the spur gear 5 423 is meshed with the rack 422 for transmission. The outer wall of one end of the telescopic frame 420 is fixedly connected with the ring frame 2 424, and the outer wall of the ring frame 2 424 is clamped with a syringe 425. The bone marrow aspiration smear mechanism 500 includes a pumping unit 510 and a scraping unit 520. The pumping unit 510 includes a hydraulic rod 3 511. The outer wall of the hydraulic rod 3 511 is fixedly connected to the inner wall of the shell 121. The outer wall of one end of the hydraulic rod 3 511 is fixedly connected to the square rod 3 512. The outer wall of one end of the square rod 3 512 is fixedly connected to the spring telescopic rod 2 513. The outer wall of one end of the spring telescopic rod 2 513 is fixedly connected to the arc plate 514. One end of the square rod 3 512 is located at the hydraulic rod 3 511 and is fixedly connected to the arc frame 515.The scraping unit 520 includes a hydraulic rod 4 521 and a spring telescopic rod 3 525. The outer wall of the hydraulic rod 4 521 is fixedly connected to the outer wall of one side of the shell 121 near the bottom end. The outer wall of one end of the hydraulic rod 4 521 is fixedly connected to the outer wall of the U-shaped frame 2 522. Glass pieces 523 are slidably inserted into the outer wall of the U-shaped frame 2 522 near both sides. Slide grooves 524 are provided on the outer walls of both sides of the U-shaped frame 2 522. The outer wall of the spring telescopic rod 3 525 is fixedly connected to the inner wall of the shell 121. The outer wall of the spring telescopic rod 3 525 is fixedly connected to the outer wall of one end. The outer walls of the two ends of the square plate 526 are fixedly connected to the outer walls of the rotating seat 2 527. A scraper 529 is fixedly connected between the outer walls of the two rotating seats 527. A round rod 528 is rotatably connected to one end of the rotating seat 2 527. The outer wall of the round rod 528 is slidably inserted into the slide groove 524.

[0038] A method for using a bone marrow puncture and collection device, wherein the specific steps for using the bone marrow puncture and collection device are as follows:

[0039] Step 1: During operation, the puncture site is determined using human imaging technology, disinfection and local anesthesia are performed, the adjustable bracket 110 is adjusted until the frame 311 is close to the marrow extraction site, the electromagnet 415 attracts the needle core 240, the length of the needle 226 is adjusted through a series of mechanical movements, and the semiconductor cooling plate 250 is driven to pre-cool the needle 226;

[0040] Step 2: The needle core 240 is driven back to the needle sleeve 220. The electromagnet 415 cancels the adsorption of the needle core 240 and limits the position. The capacitive sensor 130 detects the position of the needle tip of the puncture needle 226. The hydraulic rod 120 drives the puncture mechanism 200 to move downward, and the rubber wheel 320 rotates to tighten the skin at the pulp extraction site.

[0041] Step 3: When the needle tip of the needle 226 touches the periosteum, the piezoresistive pressure sensor 211 detects a change in resistance, and the first motor 213 drives in the reverse direction, driving the needle tip of the needle 226 and the needle core 240 to rotate and penetrate the periosteum;

[0042] Step 4: Hydraulic rod 211 drives needle core 240 upward, and motor 413 drives telescopic frame 420 to rotate 90 degrees around hydraulic rod 211 and move downward so that syringe 425 engages with the needle. Bone marrow flows through the inside of needle 226 and enters syringe 425, driving syringe 425 upward. Motor 413 drives syringe 425 back to its original position, with needle core 240 facing needle sheath 220.

[0043] Step 5: After the marrow is extracted, the needle 226 is removed from the body. The doctor stops the bleeding and presses the piston of the syringe 425 to allow the marrow to drip onto the two glass slides 523. The scraper 529 moves up and down along the track of the slide 524 to quickly smear the marrow fluid on the glass slides 523. After the glass slides 523 move out of the housing 121, the doctor can remove the glass slides 523.

[0044] Specifically, during operation, the puncture site and depth are determined by human imaging technology. The doctor disinfects the marrow extraction site and performs local anesthesia. The height of the adjustable bracket 110 is adjusted until the frame 311 is close to the skin at the marrow extraction site. The electromagnet 415 adsorbs the needle core 240. At the same time, the inclined block 223 slides toward the outside of the needle sleeve 220 and separates from the square groove 1 241 under the suction force of the magnetic block 417. The hydraulic rod 2 411 drives the needle core 240 adsorbed by the electromagnet 415 to move upward to separate from the inside of the needle sleeve 220. The No. 1 motor 213 drives the spur gear 217 to rotate and mesh with the gear ring 231, driving the circular shell 3 230 to rotate. The circular shell 3 230 rotates and drives the needle 226 to move up and down to adjust the needle length according to the puncture depth. After the adjustment is completed, the hydraulic rod 2 411 drives the spur gear 2 217 to rotate and mesh with the gear ring 2 231, driving the circular shell 3 230 to rotate. The rotation of the circular shell 3 230 drives the needle 226 to move up and down to adjust the needle length according to the puncture depth. The pressure rod 2 411 drives the adsorbed needle core 240 to move into the inside of the needle sleeve 220 until it is close to the top wall of the puncture needle 226. The electromagnet 415 cancels the adsorption of the needle core 240 and moves upward. The inclined block 223 is rebounded by the spring 1 224 and engages with the square groove 1 241 to limit the position. The position between the needle tip of the puncture needle 226 and the skin is detected by the capacitive sensor 130. The hydraulic rod 120 drives the puncture mechanism 200 to move downward. The L-shaped frame 124 squeezes the tooth plate 332 to engage with the spur gear 4 331. The spur gear 4 331 drives the spur gear 3 321 to rotate, and drives the rubber wheel 320 close to the skin to rotate, so that the skin of the marrow extraction site becomes tight, which helps to fix the puncture point and reduce the possibility of the needle slipping or shifting during the puncture process. The performance of the needle 226 is improved, thereby improving the accuracy of puncture. When the needle tip of the needle 226 contacts the periosteum, the piezoresistive pressure sensor 211 detects the change in the needle tip resistance, and the No. 1 motor 213 drives the spur gear 1 215 in reverse to rotate and engage with the ring gear 1 221, driving the needle sleeve 220 to rotate, and then driving the needle tip of the needle 226 and the needle core 240 to rotate, penetrating the periosteum until the needle tip of the needle 226 enters the bone. The hydraulic rod 2 411 drives the electromagnet 415 to move downward, and the electromagnet 415 adsorbs the needle core 240. At the same time, the inclined block 223 slides to the outside of the needle sleeve 220 under the suction force of the magnetic block 417 and separates from the square groove 1 241. The hydraulic rod 2 411 drives the needle core 240 adsorbed by the electromagnet 415 to move upward until it is out of the needle sleeve 220. The second motor 413 drives the telescopic frame 420 to rotate ninety degrees around the hydraulic rod 2 411 to the top of the needle sleeve 220. The hydraulic rod 2 411 drives the syringe 425 to move downward until the needle is engaged with the needle sleeve 220. At the same time, the hydraulic rod 3 511 drives the spring telescopic rod 2 513 to move downward. When the piston rod of the syringe 425 passes through the curved plate 514, the spring telescopic rod 2 513 is squeezed and contracts, and then rebounds to engage the curved plate 514 with the piston rod of the syringe 425. The hydraulic rod 3 511 drives the curved plate 514 to move upward, pulling the piston rod of the syringe 425 upward. The bone marrow will enter the syringe 425 along the inside of the puncture needle 226. After extracting an appropriate amount of bone marrow, the hydraulic rod 2 411 drives the syringe 425 to move upward.The second motor 413 drives the syringe 425 containing the bone marrow to rotate back to its original position, and the needle core 240 is facing the needle sleeve 220. At the same time, the hydraulic rod 3 511 drives the arc frame 515 to move upward, and then the hydraulic rod 2 411 drives the adsorbed needle core 240 to move to the inside of the needle sleeve 220 until it is close to the top wall of the puncture needle 226. The electromagnet 415 cancels the adsorption of the needle core 240 and moves upward. The inclined block 223 is rebounded by the spring 1 224 and engages with the square groove 1 241 to limit the position. The hydraulic rod 1 120 drives the puncture mechanism 200 to move upward until the puncture needle 226 is separated from the human body. The doctor quickly stops the bleeding of the wound. The hydraulic rod 3 511 drives the arc frame 515 to move downward to press the piston rod of the syringe 425, so that a part of the bone marrow drips into one of them. On the glass slide 523, motor 3 421 drives spur gear 5 423 to mesh with rack 422, driving syringe 425 to quickly move to a position above another glass slide 523. Hydraulic rod 3 511 drives curved frame 515 to continue squeezing the piston rod of syringe 425, dripping the remaining bone marrow onto another glass slide 523. Hydraulic rod 4 521 drives U-shaped frame 2 522 to quickly move out of the housing 121. During this time, scraper 529 moves up and down along the track of slide 524, quickly smearing the bone marrow fluid on the glass slide 523 to prevent coagulation and cell rupture. After the glass slide 523 moves out of the housing 121, the doctor can remove the glass slide 523 inserted into U-shaped frame 2 522. After the operation, the equipment needs to be cleaned and disinfected for future use.

[0045] Example 1

[0046] like Figure 4 and 6 As shown, in this embodiment, the shifting mechanism 400 includes a hydraulic rod 2 411, the outer wall of the hydraulic rod 2 411 is fixedly connected to the inner wall of the top of the housing 121, the outer wall of one end of the hydraulic rod 2 411 is fixedly connected to the circular shell 412, the inner part of the circular shell 412 is fixedly connected to the second motor 413, the outer wall of the rotating shaft of the second motor 413 is fixedly connected to the square rod 2 414, the outer wall of one end of the square rod 2 414 is fixedly connected to the electromagnet 415, and the outer wall of the electromagnet 415 is fixedly connected to two equiangular fixed magnets around its axis. A spring telescopic rod 416 is provided, and a magnet 417 is fixedly connected to the outer wall of one end of the spring telescopic rod 416. A needle core 240 is slidably inserted into the needle sleeve 220 or the needle 226. A plurality of square grooves 241 are formed on the outer wall of the needle core 240 near the top at equal angles around its axis. A T-shaped slot 222 is formed on the top wall of the needle sleeve 220. Slanted blocks 223 are slidably inserted on both sides of the T-shaped slot 222. A spring 224 is fixedly connected between the outer wall of the inclined block 223 and the inner wall of the T-shaped slot 222.

[0047] When the needle core 240 needs to be pulled out, the second motor 413 drives the electromagnet 415 to move to the top of the needle sleeve 220, and the second hydraulic rod 411 drives the electromagnet 415 to move downward. The electromagnet 415 attracts the needle core 240. At the same time, the inclined block 223 slides outward from the needle sleeve 220 and separates from the square groove 1 241 under the suction force of the magnetic block 417. The second hydraulic rod 411 drives the electromagnet 415 to move the needle core 240 attracted by the electromagnet 415 upward to be out of the needle sleeve 220. When the needle core 240 needs to be inserted into the needle sleeve 220, the second hydraulic rod 411 drives the attracted needle core 240 to move into the needle sleeve 220 until it is close to the top wall of the puncture needle 226. The electromagnet 415 cancels the attraction of the needle core 240 and moves upward. The inclined block 223 is rebounded by the spring 1 224 and engages with the square groove 1 241 to limit the position.

[0048] like Figure 6-8 As shown, in this embodiment, the outer wall of one end of the square rod 414 is fixedly connected to the telescopic frame 420, and a third motor 421 is fixedly connected to the outer wall of one section of the telescopic frame 420 near one end. The outer wall of the other section of the telescopic frame 420 is fixedly connected to the rack 422. The outer wall of the rotating shaft of the third motor 421 is sleeved and fixedly connected to the spur gear 5 423. The outer wall of the spur gear 5 423 is meshed with the rack 422 for transmission. The outer wall of one end of the telescopic frame 420 is fixedly connected to the ring frame 2 424, and the outer wall of the ring frame 2 424 is clamped with the syringe 4 25. The bone marrow aspiration smear mechanism 500 includes a suction and pressing unit 510 and a scraping unit 520. The suction and pressing unit 510 includes a hydraulic rod 3 511. The outer wall of the hydraulic rod 3 511 is fixedly connected to the inner wall of the shell 121. The outer wall of one end of the hydraulic rod 3 511 is fixedly connected to the square rod 3 512. The outer wall of one end of the square rod 3 512 is fixedly connected to the spring telescopic rod 2 513. The outer wall of one end of the spring telescopic rod 2 513 is fixedly connected to the arc plate 514. One end of the square rod 3 512 is fixedly connected to the arc frame 515 at the hydraulic rod 3 511.

[0049] During specific implementation, the second motor 413 drives the telescopic frame 420 to rotate ninety degrees around the hydraulic rod 2 411 to the top of the needle sleeve 220, and the hydraulic rod 2 411 drives the syringe 425 to move downward until the needle is engaged with the needle sleeve 220. At the same time, the hydraulic rod 3 511 drives the spring telescopic rod 2 513 to move downward. When the piston rod of the syringe 425 passes through the arc plate 514, the spring telescopic rod 2 513 is squeezed and contracts, and then rebounds to engage the arc plate 514 with the piston rod of the syringe 425. The hydraulic rod 3 511 drives the arc plate 514 to move upward, pulling the piston rod of the syringe 425 to move upward, and the bone marrow will enter the syringe 425 along the inside of the needle 226. After an appropriate amount of bone marrow is extracted , hydraulic rod 2 411 drives syringe 425 to move upward, motor 2 413 drives syringe 425 containing bone marrow to rotate back to its original position, hydraulic rod 3 511 drives arc frame 515 to move upward, hydraulic rod 3 511 drives arc frame 515 to move downward to press the piston rod of syringe 425, so that part of bone marrow drips onto one of the glass pieces 523, motor 3 421 drives spur gear 5 423 to engage with rack 422, driving syringe 425 to move quickly to a position above another glass piece 523, hydraulic rod 3 511 drives arc frame 515 to continue squeezing the piston rod of syringe 425, and dripping the remaining bone marrow onto another glass piece 523.

[0050] Example 2

[0051] like Figure 8 As shown, in this embodiment, the scraping unit 520 includes a hydraulic rod four 521 and a spring telescopic rod three 525. The outer wall of the hydraulic rod four 521 is fixedly connected to the outer wall of one side of the shell 121 near the bottom end, the outer wall of one end of the hydraulic rod four 521 is fixedly connected to the U-shaped frame two 522, and the outer wall of the U-shaped frame two 522 near the two sides are slidably inserted with glass pieces 523, and the outer walls of both sides of the U-shaped frame two 522 are provided with sliding grooves 524. The outer wall of the spring telescopic rod three 525 is fixedly connected to the inner wall of the shell 121, and the outer wall of one end of the spring telescopic rod three 525 is fixedly connected to the square plate 526. The outer walls of both ends of the square plate 526 are fixedly connected to the rotating seat two 527. A scraper 529 is fixedly connected between the outer walls of the two rotating seat two 527. One end of the rotating seat two 527 is rotatably connected to a round rod 528, and the outer wall of the round rod 528 is slidably inserted into the sliding groove 524.

[0052] During specific implementation, the hydraulic rod 4 521 drives the U-shaped frame 2 522 to move quickly outside the shell 121. During this period, the scraper 529 moves up and down along the trajectory of the slide 524 to quickly smear the bone marrow fluid on the glass slide 523 to prevent coagulation and cell rupture. After the glass slide 523 moves outside the shell 121, the doctor can remove the glass slide 523 inserted on the U-shaped frame 2 522.

[0053] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A bone marrow puncture collection device, characterized in that: The bone marrow collection mechanism (100) includes an adjustable bracket (110), the bottom wall of the top of the adjustable bracket (110) is fixedly connected to a hydraulic rod (120), the hydraulic rod (120) is fixedly connected to a shell (121), a U-shaped frame (122) is fixedly connected to the outer wall of one side of the shell (121) near the bottom end, a puncture mechanism (200) is slidably inserted into the U-shaped frame (122), a square rod (123) is clamped on the outer wall of the U-shaped frame (122), a skin tightening mechanism (300) is fixedly connected to the top of the adjustable bracket (110) near the side of the shell (121), a position change mechanism (400) is fixedly connected to the inside of the shell (121) near the position of the puncture mechanism (200), and a bone marrow extraction smear mechanism (500) is fixedly connected to the inside of the shell (121) near the side of the skin tightening mechanism (300); The puncture mechanism (200) comprises a circular shell (210), wherein the interior of the circular shell (210) is rotatably connected to a needle sleeve (220), the inner wall of the circular shell (210) is fixedly connected to a circular shell (212) near the needle sleeve (220), the interior of the circular shell (212) is fixedly connected to a No. 1 motor (213), the outer wall of the rotating shaft of the No. 1 motor (213) is sleeved and rotatably connected to a one-way shaft (214), the outer wall of the one-way shaft (214) is sleeved and fixedly connected to a spur gear (215), the outer wall of the needle sleeve (220) is sleeved and fixedly connected to a gear ring (221) located inside the circular shell (210), the spur gear (215) and the gear ring (221) are meshed and transmitted, and the bottom end of the circular shell (210) is fixedly connected to a piezoresistive pressure sensor (211).

2. A bone marrow puncture collection device according to claim 1, characterized in that: The outer wall of the rotating shaft of the first motor (213) is sleeved and rotatably connected with the second one-way shaft (216), the outer wall of the second one-way shaft (216) is sleeved and fixedly connected with the second spur gear (217), the bottom end of the round shell (210) is rotatably connected with the third round shell (230), the outer wall of one end of the round shell (230) is sleeved and fixedly connected with the second gear ring (231), the second gear ring (231) and the second spur gear (217) are meshed and driven, and a reciprocating groove (232) is opened inside the round shell (230), and the needle sleeve Four square holes (225) are provided on the outer wall of the (220) at equal angles around the axis thereof near the bottom end. A needle (226) is slidably inserted into the square hole (225) inside the needle sleeve (220). The outer wall of one end of the needle (226) is rotatably connected to a ring frame (233) outside the needle sleeve (220). The outer wall of the ring frame (233) is screwed into the reciprocating groove (232). A capacitive sensor (130) is fixedly connected to the outer wall of one side of the U-shaped frame (122).

3. A bone marrow puncture collection device according to claim 2, characterized in that: The bottom end of the needle sleeve (220) is rotatably connected to a semiconductor cooling plate (250), an outer wall of the semiconductor cooling plate (250) is sleeved with a protective pad, and the outer wall of the semiconductor cooling plate (250) is fixedly connected to the outer wall of the bottom end of the circular shell (210).

4. A bone marrow puncture collection device according to claim 3, characterized in that: The skin tightening mechanism (300) includes an L-shaped frame (310), the outer wall of the L-shaped frame (310) is fixedly connected to the outer wall of the adjustable bracket (110), the outer wall of one end of the L-shaped frame (310) is fixedly connected to a frame (311), the bottom walls on both sides of the frame (311) are provided with square grooves (312), the inner walls of the square grooves (312) are rotatably connected to the positions of the two sides, and a straight gear (321) is fixedly connected between the outer walls of the two rubber wheels (320), and the outer walls of the two sides of the frame (311) are provided with square holes (313) near the center position. A rotating seat 1 (330) is fixedly connected to the inner wall of one side of the second (312) near the center position, and the rotating seat 1 (330) is rotatably connected to the spur gear 4 (331). A tooth plate (332) is slidably inserted into the square groove 2 (312), and the tooth plate (332) is meshed with the spur gear 4 (331) for transmission. The spur gear 4 (331) is meshed with the spur gear 3 (321) for transmission. A spring 2 (333) is fixedly connected between the outer wall of one end of the tooth plate (332) and the outer wall of the frame (311). The outer walls of both sides of the U-shaped frame 1 (122) are fixedly connected to the L-shaped frame 1 (124) near the center position.

5. A bone marrow puncture collection device according to claim 4, characterized in that: The shifting mechanism (400) includes a hydraulic rod 2 (411), the outer wall of the hydraulic rod 2 (411) is fixedly connected to the inner wall of the top of the housing (121), the outer wall of one end of the hydraulic rod 2 (411) is fixedly connected to the round shell 4 (412), the inner part of the round shell 4 (412) is fixedly connected to the second motor (413), the outer wall of the rotating shaft of the second motor (413) is fixedly connected to the square rod 2 (414), the outer wall of one end of the square rod 2 (414) is fixedly connected to the electromagnet (415), and the outer wall of the electromagnet (415) is fixedly connected to two spring telescopic rods (415) at equal angles around its axis. 416), a magnetic block (417) is fixedly connected to the outer wall of one end of the spring telescopic rod (416), a needle core (240) is slidably inserted into the needle sleeve (220) or the needle (226), a plurality of square grooves (241) are provided on the outer wall of the needle core (240) at equal angles around its axis near the top, a T-shaped groove (222) is provided on the top wall of the needle sleeve (220), and inclined blocks (223) are slidably inserted on both sides of the interior of the T-shaped groove (222), and a spring (224) is fixedly connected between the outer wall of the inclined block (223) and the inner wall of the T-shaped groove (222).

6. The bone marrow puncture and collection device according to claim 5, characterized in that: The outer wall of one end of the square rod 2 (414) is fixedly connected to a telescopic frame (420), a section of the outer wall of the telescopic frame (420) is fixedly connected to a third motor (421) near one end, the outer wall of the other section of the telescopic frame (420) is fixedly connected to a rack (422), the outer wall of the rotating shaft of the third motor (421) is sleeved and fixedly connected to a spur gear 5 (423), the outer wall of the spur gear 5 (423) is meshed with the rack (422) for transmission, the outer wall of one end of the telescopic frame (420) is fixedly connected to a ring frame 2 (424), and the outer wall of the ring frame 2 (424) is clamped with a syringe (425).

7. The bone marrow puncture and collection device according to claim 6, characterized in that: The bone marrow extraction smear mechanism (500) includes a pumping unit (510) and a scraping unit (520). The pumping unit (510) includes a hydraulic rod (511). The outer wall of the hydraulic rod (511) is fixedly connected to the inner wall of the housing (121). The outer wall of one end of the hydraulic rod (511) is fixedly connected to a square rod (512). The outer wall of one end of the square rod (512) is fixedly connected to a spring telescopic rod (513). The outer wall of one end of the spring telescopic rod (513) is fixedly connected to an arc plate (514). One end of the square rod (512) is fixedly connected to an arc frame (515) located at the hydraulic rod (511).

8. The bone marrow puncture and collection device according to claim 7, characterized in that: The scraping unit (520) includes a hydraulic rod four (521) and a spring telescopic rod three (525). The outer wall of the hydraulic rod four (521) is fixedly connected to the outer wall of one side of the shell (121) near the bottom end. The outer wall of one end of the hydraulic rod four (521) is fixedly connected to the U-shaped frame two (522). The outer wall of the U-shaped frame two (522) is slidably connected to the glass pieces (523) near the two sides. The outer walls of both sides of the U-shaped frame two (522) are provided with sliding grooves (524). The outer wall of the spring telescopic rod three (525) is fixedly connected to the inner wall of the shell (121); the outer wall of one end of the spring telescopic rod three (525) is fixedly connected to a square plate (526); the outer walls of both ends of the square plate (526) are fixedly connected to the rotating seat two (527); a scraper (529) is fixedly connected between the outer walls of the two rotating seats two (527); one end of the rotating seat two (527) is rotatably connected to a round rod (528); the outer wall of the round rod (528) is slidably plugged into the sliding groove (524).

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