Body fluid extraction equipment for patient treatment

Abstract

The invention discloses body fluid extraction equipment for patient treatment, and belongs to the field of medical instruments, the body fluid extraction equipment comprises a [-shaped clamping plate, a first threaded rod is in threaded connection with the interior of the [-shaped clamping plate, a clamping plate is rotatably connected to the top of the first threaded rod, and a supporting plate is fixedly connected to the upper surface of the [-shaped clamping plate; a servo motor is fixedly connected to the edge of the upper surface of the U-shaped clamping plate. A trapezoidal sleeve block can be quickly clamped on the outer surface of a clamping plate, the clamping plate is limited, so that the clamping plate cannot move up and down, a connecting sleeve and a liquid storage sleeve are fixed, the stability of equipment can be guaranteed when body fluid is extracted, and the situation that the equipment shakes during extraction, and discomfort of a patient is increased is avoided; at the moment, the liquid storage sleeve can be pulled out from the interior of the connecting sleeve to be replaced, extraction operation can be continued, secondary puncture is avoided, the workload is reduced, and meanwhile pain caused by secondary transmission of a patient is relieved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more specifically, to a body fluid extraction device for patient treatment. Background Art

[0002] Pleural effusion is a common clinical syndrome characterized by pathological fluid accumulation in the pleural cavity. The pleural cavity is a potential space between the visceral and parietal pleura. There is 5 - 15 ml of fluid in the pleural cavity of normal people, which plays a lubricating role during respiratory movement. 500 - 1000 ml of fluid is formed and absorbed in the pleural cavity every day. Any cause that leads to an increase in fluid production or a decrease in fluid absorption in the pleural cavity can result in pleural effusion. Pleural effusion may cause chest tightness and dyspnea in patients, and even cause related complications. Therefore, it needs to be extracted in a timely manner;

[0003] In the prior art, a disposable syringe is usually used to extract the fluid in the patient's body. Since the fluid continues to be produced, doctors need to repeatedly puncture the fluid accumulation site of the patient with a disposable syringe. The repeated punctures not only increase the workload of medical staff, but also cause additional pain and harm to the patient, and are not convenient to use;

[0004] To solve the above problems, a Chinese patent with the authorization announcement number CN219481027U discloses a pleural effusion extraction device. This device realizes the function of extracting the pleural effusion of patients; by setting a second arc-shaped splint, a sliding plate, a connecting plate and a first arc-shaped splint, it realizes the function of limiting and fixing the collection cylinder, preventing the collection cylinder from tipping during the extraction process and being convenient to use; however, in actual use, the content of pleural effusion in different patients is different. By using a collection cylinder of a unified specification to collect the fluid, there is a situation where the patient's pleural effusion is greater than the collection cylinder, and the extraction device needs to be replaced, and a second puncture is required, increasing the discomfort of the patient and the surgical process. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a body fluid extraction device for patient treatment.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A body fluid extraction device for patient treatment, including a U-shaped clamping plate. A first threaded rod is threadedly connected inside the U-shaped clamping plate. The top of the first threaded rod is rotatably connected to a clamping plate. A support plate is fixedly connected to the upper surface of the U-shaped clamping plate. A sliding plate is sleeved on the outer surface of the support plate. One side of the sliding plate is fixedly connected with a syringe disinfection assembly for disinfection. An extraction assembly for extracting body fluid is arranged on the syringe disinfection assembly.

[0008] The extraction component includes a guiding slide bar fixed on the syringe disinfection component and a fixing plate fixed on the upper surface of the sliding plate. A telescopic rod is slidably connected inside the fixing plate. One side of the telescopic rod is fixedly connected with a trapezoidal sleeve block. A spring is sleeved on the outer surface of the telescopic rod. A connecting sleeve is slidably connected on the outer surfaces of the two guiding slide bars. A clamping plate is fixedly connected to the outer surface of the connecting sleeve. A circular groove is opened at the middle of the lower surface of the connecting sleeve. Two fan-shaped openings are opened at the inner bottom of the connecting sleeve. A syringe is fixedly connected to the lower surface of the connecting sleeve. A storage component is inserted into the inside of the connecting sleeve.

[0009] Further, the storage component includes a liquid storage sleeve inserted into the connecting sleeve. Two fan-shaped pipes are fixedly connected to the lower surface of the liquid storage sleeve. A piston is slidably connected inside the liquid storage sleeve. A piston rod is fixedly connected to the upper surface of the piston. A replacement component is arranged on the lower surface of the piston. An expansion component is arranged inside the piston. The fan-shaped pipes and the fan-shaped openings are mutually adapted. A rubber sealing ring is arranged on the inner surface of the connecting sleeve. A sleeve plate is slidably connected on the outer surface of the guiding slide bar. The connecting sleeve is fixedly connected with the sleeve plate. A servo motor is fixedly connected to the edge of the upper surface of the U-shaped clamping plate. The output end of the servo motor is fixedly connected with a second threaded rod. The top of the second threaded rod penetrates through the inside of the sliding plate and is in threaded connection.

[0010] Further, the replacement component includes a storage cavity opened on the lower surface of the piston rod, a butterfly plate rotatably connected to the inner top of the circular groove, and a worm rotatably connected inside the connecting sleeve. A worm gear is fixedly connected to the lower surface of the butterfly plate. The worm and the worm gear are meshed with each other. Two pull rods are slidably connected to the inner top of the storage cavity. The bottom of the pull rod is fixedly connected with a movable plate. Two rubber sealing plugs are fixedly connected to the lower surface of the movable plate.

[0011] Further, a rubber pad is arranged on the upper surface of the butterfly plate. One side of the worm extends out of the inside of the connecting sleeve. The rubber sealing plug and the fan-shaped pipe are mutually adapted. The top of the pull rod extends out of the inside of the liquid storage sleeve.

[0012] Further, the expansion component includes a first cavity opened inside the piston. A rotating rod is rotatably connected to the inner top of the first cavity. A cross-shaped driving plate is fixedly connected to the bottom of the rotating rod. A second cavity is opened on the inner surface of the first cavity. Four first arc-shaped plates are slidably connected inside the second cavity. A contact rod is fixedly connected to one side of the first arc-shaped plate.

[0013] Further, the top of the rotating rod penetrates through the piston rod and extends out of its inside. The rotating rod and the piston rod rotate relative to each other. A rubber ring is arranged on the outer surface of the rotating rod. The pull rod penetrates through the first cavity.

[0014] Furthermore, the needle tube disinfection assembly includes a mounting frame fixed on one side of the sliding plate, the outer surface of the mounting frame is rotatably connected to a support ring, a ring is fixed at the edge of the upper surface of the support ring, an extrusion rod is symmetrically slidably connected inside the mounting frame, a second arc plate is fixedly connected on one side where two extrusion rods are close to each other, a triangular block is symmetrically fixedly connected to the inner surface of the ring, a rotating plate is rotatably connected to the top of the mounting frame, an alcohol disinfection cotton is fixedly connected to the bottom of the rotating plate, a skin disinfection assembly is arranged on the inner surface of the mounting frame, a driving component is arranged on the outer surface of the mounting frame, a through groove is opened in the middle of the upper surface of the mounting frame, and the through groove passes through the rotating plate and the alcohol disinfection cotton.

[0015] Furthermore, the driving component includes a driving rod that rotates symmetrically on the outer surface of the mounting frame, a first annular rack fixed on the top of the inner surface of the circular ring, and two driving sleeves symmetrically fixed on the outer surface of the connecting sleeve, the inner surface of the driving sleeve is fixedly connected to a driving slider, a spiral groove is provided on the outer surface of the driving rod near the top, a vertical groove is provided on the bottom of the outer surface of the driving rod, the vertical groove is connected to the inside of the spiral groove, a first gear is fixedly connected to the bottom of the driving rod, the first gear is meshed with the first annular rack, the driving slider is located inside the spiral groove, and the driving slider slides with the spiral groove and the vertical groove.

[0016] Furthermore, the skin disinfection component includes a mounting plate symmetrically fixed on the inner surface of the mounting frame, a second annular rack fixed on the outer surface of the alcohol disinfection cotton, and a third annular rack fixed on the inner surface of the supporting ring. An annular cavity is opened inside the mounting frame, and the upper surface of the mounting plate is rotatably connected to a second gear, and the second gear is meshed with the third annular rack and the second annular rack.

[0017] Furthermore, the third annular rack is located inside the annular cavity, a gear groove is formed on the inner surface of the annular cavity, and the second gear is located inside the gear groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This solution sets an extraction component. When the trapezoidal sleeve block is quickly reset, the trapezoidal sleeve block is quickly stuck on the outer surface of the card plate, limiting the card plate so that the card plate cannot move up and down, and the needle tube reaches the specified position at the same time, thereby fixing the connecting sleeve and the liquid storage sleeve. The stability of the device can be ensured when extracting body fluids, avoiding the device from shaking during extraction and increasing the patient's discomfort. When the body fluid inside the liquid storage sleeve is full, the liquid storage sleeve can be pulled out from the inside of the connecting sleeve and replaced, and the extraction operation can be continued to avoid secondary puncture, which not only reduces the workload, but also reduces the pain caused by the secondary transfer to the patient.

[0020] 2. This solution sets up a replacement component to ensure that during the replacement of the liquid storage cannula, the liquid inside the patient's body cannot overflow through the needle tube and the connecting sleeve, thereby avoiding the overflow of body fluids and contaminating the surgical bedding and operating room. At the same time, the replaced liquid storage cannula is sealed by a rubber sealing plug to ensure that the liquid inside the liquid storage cannula will not flow or spill when the liquid storage cannula is transferred, effectively improving the safety and practicality of the equipment.

[0021] 3. In this solution, an expansion component is provided, and the first arc plate squeezes the piston so that the piston contacts the side wall of the liquid storage sleeve, so that there is a certain pressure between the piston and the liquid storage sleeve, thereby increasing the service life of the piston and avoiding failure in extracting body fluids due to piston wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the extraction component of the present invention;

[0024] Figure 3 The connecting sleeve structure of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 4 It is a schematic diagram of the trapezoidal sleeve block structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the liquid storage sleeve of the present invention;

[0027] Figure 6 It is a schematic diagram of the piston structure of the present invention;

[0028] Figure 7 The connecting sleeve structure of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 8 It is a schematic diagram of the front and cross-sectional structure of the expansion assembly of the present invention;

[0030] Fig. 9 It is a schematic diagram of a top view and cross-sectional structure of an expansion assembly of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the needle disinfection assembly of the present invention;

[0032] Fig.11 It is a schematic cross-sectional view of the needle disinfection assembly of the present invention;

[0033] Fig.12 It is a schematic cross-sectional structural diagram of a driving rod of the present invention;

[0034] Fig.13Schematic diagram of the triangular block structure of the present invention;

[0035] Fig.14 of the present invention Fig.11 Schematic diagram of the enlarged structure at position A.

[0036] Explanation of the reference numerals in the figure:

[0037] 1. C-shaped clamping plate; 2. First threaded rod; 3. Clamping plate; 4. Support plate;

[0038] 5. Extraction component; 51. Guide slide bar; 52. Clamping plate; 53. Connecting sleeve; 54. Liquid storage sleeve;

[0039] 55. Replacement component; 551. Storage cavity; 552. Rubber sealing plug; 553. Movable plate; 554. Butterfly plate; 555. Worm; 556. Worm gear; 557. Pull rod;

[0040] 56. Expansion component; 561. Rotating rod; 562. Cross-shaped drive plate; 563. First arc-shaped plate; 564. Contact rod; 565. First cavity; 566. Second cavity;

[0041] 57. Piston; 58. Syringe; 59. Piston rod; 510. Trapezoidal sleeve block; 511. Spring; 512. Telescopic rod; 513. Fixed plate; 514. Fan-shaped pipe; 515. Fan-shaped opening; 516. Circular groove;

[0042] 6. Syringe disinfection component; 61. Installation frame; 62. Drive rod; 63. First gear; 64. Drive sleeve; 65. Spiral groove; 66. Vertical groove; 67. Ring;

[0043] 68. Skin disinfection component; 681. Installation plate; 682. Second gear; 683. Second annular rack; 684. Third annular rack; 685. Annular cavity;

[0044] 69. Rotating plate; 610. Alcohol disinfection cotton; 611. First annular rack; 612. Second arc-shaped plate; 613. Extrusion rod; 614. Support ring; 615. Drive slider; 616. Triangular block;

[0045] 7. Servo motor; 8. Second threaded rod; 9. Sliding plate. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1 to 14 , a body fluid extraction device for patient treatment, including a U-shaped clamping plate 1, the inside of the U-shaped clamping plate 1 is threadedly connected with a first threaded rod 2, the top of the first threaded rod 2 is rotatably connected with a clamping plate 3, the upper surface of the U-shaped clamping plate 1 is fixedly connected with a support plate 4, the outer surface of the support plate 4 is sleeved with a sliding plate 9, one side of the sliding plate 9 is fixedly connected with a syringe disinfection assembly 6 for disinfection, and a liquid extraction assembly 5 for extracting body fluid is arranged on the syringe disinfection assembly 6.

[0048] As Figure 2 - Figure 7 shown, the liquid extraction assembly 5 includes a guide slide bar 51 fixed on the syringe disinfection assembly 6 and a fixing plate 513 fixed on the upper surface of the sliding plate 9. An expansion rod 512 is slidably connected inside the fixing plate 513. One side of the expansion rod 512 is fixedly connected with a trapezoidal sleeve block 510. A spring 511 is sleeved on the outer surface of the expansion rod 512. A connecting sleeve 53 is slidably connected on the outer surfaces of the two guide slide bars 51. A clamping plate 52 is fixedly connected to the outer surface of the connecting sleeve 53. A circular groove 516 is opened at the middle of the lower surface of the connecting sleeve 53. Two fan-shaped openings 515 are opened at the inner bottom of the connecting sleeve 53. A syringe 58 is fixedly connected to the lower surface of the connecting sleeve 53. A storage component is inserted into the inside of the connecting sleeve 53.

[0049] The storage component includes a liquid storage sleeve 54 inserted into the connecting sleeve 53. Two fan-shaped pipes 514 are fixedly connected to the lower surface of the liquid storage sleeve 54. A piston 57 is slidably connected inside the liquid storage sleeve 54. A piston rod 59 is fixedly connected to the upper surface of the piston 57. A replacement component 55 is arranged on the lower surface of the piston 57. An expansion component 56 is arranged inside the piston 57. The fan-shaped pipes 514 and the fan-shaped openings 515 are mutually adapted. A rubber sealing ring is arranged on the inner surface of the connecting sleeve 53. A sleeve plate is slidably connected to the outer surface of the guide slide bar 51. The connecting sleeve 53 is fixedly connected to the sleeve plate. A servo motor 7 is fixedly connected to the edge of the upper surface of the U-shaped clamping plate 1. The output end of the servo motor 7 is fixedly connected with a second threaded rod 8. The top of the second threaded rod 8 penetrates through the inside of the sliding plate 9 and is threadedly connected.

[0050] When extracting pleural effusion from a patient, first, buckle the U-shaped clamping plate 1 on the edge of the operating table. Rotate the first threaded rod 2 to drive the clamping plate 3 to contact the operating table and firmly clamp the U-shaped clamping plate 1 on the operating table. Turn on the servo motor 7 to drive the second threaded rod 8 to work. The second threaded rod 8 drives the sliding plate 9 to move downward. The sliding plate 9 buckles the syringe sterilization assembly 6 on the patient's chest. At this time, the preparation work is completed. At this time, the liquid storage sleeve 54 can be pressed downward. The liquid storage sleeve 54 drives the connecting sleeve 53 and the sleeve plate to slide outside the clamping plate 52, driving the connecting sleeve 53 and the syringe 58 to move downward. The clamping plate 52 synchronously descends with the connecting sleeve 53. When the clamping plate 52 contacts the hypotenuse of the trapezoidal sleeve block 510, the clamping plate 52 pushes the trapezoidal sleeve block 510 towards the fixed plate 513, compressing the spring 511. When the clamping plate 52 passes through the trapezoidal sleeve block 510, under the elastic force of the spring 511, the trapezoidal sleeve block 510 quickly resets. The trapezoidal sleeve block 510 quickly clamps on the outer surface of the clamping plate 52, limiting the clamping plate 52 so that it cannot move up and down. At the same time, the syringe 58 also reaches the designated position, thereby fixing the connecting sleeve 53 and the liquid storage sleeve 54. When extracting body fluid, the stability of the device can be ensured, avoiding the device from shaking during extraction and increasing the discomfort of the patient, and avoiding secondary damage to the patient's internal tissues by the syringe 58. Pull the piston rod 59 to drive the piston 57 to move upward to extract the body fluid of the patient. When the internal body fluid of the liquid storage sleeve 54 is full, at this time, the liquid storage sleeve 54 can be pulled out from the inside of the connecting sleeve 53. Align the fan-shaped pipe 514 on the new liquid storage sleeve 54 with the fan-shaped opening 515 and insert it into the inside of the connecting sleeve 53 for installation, and the extraction operation can be continued, avoiding secondary puncture, not only reducing the workload, but also reducing the pain brought by the secondary transfer of the patient.

[0051] As Figure 6 and Figure 7 shown, the replacement assembly 55 includes a storage cavity 551 opened on the lower surface of the piston rod 59, a butterfly plate 554 rotatably connected to the inner top of the circular groove 516, and a worm 555 rotatably connected to the inside of the connecting sleeve 53. A worm gear 556 is fixedly connected to the lower surface of the butterfly plate 554. The worm 555 and the worm gear 556 are meshed with each other. Two pull rods 557 are slidably connected to the inner top of the storage cavity 551. The bottom of the pull rod 557 is fixedly connected with a movable plate 553. Two rubber sealing plugs 552 are fixedly connected to the lower surface of the movable plate 553.

[0052] A rubber pad is arranged on the upper surface of the butterfly plate 554. One side of the worm 555 extends out of the inside of the connecting sleeve 53. The rubber sealing plug 552 and the fan-shaped pipe 514 are mutually adapted. The top of the pull rod 557 extends out of the inside of the liquid storage sleeve 54.

[0053] When the liquid storage sleeve 54 is full of body fluid, the liquid storage sleeve 54 can be quickly removed from the inside of the connecting sleeve 53, and another liquid storage sleeve 54 can be reinstalled for use. However, during the replacement process, since the connecting sleeve 53 lacks a sealing mechanism and the liquid storage sleeve 54 lacks a sealing component, the patient's body fluid is likely to overflow from the inside of the connecting sleeve 53, and the overflowed body fluid is likely to contaminate the surgical gown and the surrounding environment, making it difficult to effectively clean up. In addition, the liquid storage sleeve 54 filled with body fluid is not easy to transfer and is likely to spill.

[0054] Therefore, when the body fluid in the liquid storage sleeve 54 is full and needs to be replaced, the worm 555 can be rotated at this time, the worm 555 drives the worm wheel 556 to rotate, and the worm wheel 556 drives the butterfly plate 554 to rotate, and the butterfly plate 554 moves to the bottom of the fan-shaped opening 515, and the butterfly plate 554 effectively seals the fan-shaped opening 515, and at the same time pushes the two pull rods 557 to drive the movable plate 553 to move out of the storage cavity 551, and the movable plate 553 drives the two rubber sealing plugs 552 to move to the inside of the fan-shaped pipe 514, and the rubber sealing plugs 55 2 is completely moved to the inside of the fan-shaped pipe 514 to seal it. At this time, the liquid storage sleeve 54 can be pulled out from the connecting sleeve 53, so that during the process of replacing the liquid storage sleeve 54, the liquid inside the patient's body cannot overflow through the needle tube 58 and the inside of the connecting sleeve 53, thereby preventing the overflow of body fluid from contaminating the surgical gown, bedding and operating room. At the same time, the replaced liquid storage sleeve 54 is sealed by the rubber sealing plug 552, so when the liquid storage sleeve 54 is transferred, the liquid inside the liquid storage sleeve 54 will not flow or spill, effectively improving the safety and practicality of the equipment.

[0055] like Figure 8 and Fig. 9 As shown, the expansion assembly 56 includes a first cavity 565 opened inside the piston 57, a rotating rod 561 is rotatably connected to the top of the first cavity 565, a cross-shaped driving plate 562 is fixedly connected to the bottom of the rotating rod 561, a second cavity 566 is opened on the inner surface of the first cavity 565, four first arc plates 563 are slidably connected inside the second cavity 566, and a contact rod 564 is fixedly connected to one side of the first arc plate 563.

[0056] The top of the rotating rod 561 passes through the piston rod 59 and extends out of the interior thereof. The rotating rod 561 and the piston rod 59 rotate relative to each other. A rubber ring is provided on the outer surface of the rotating rod 561 . The pull rod 557 passes through the first cavity 565 .

[0057] When the liquid storage sleeve 54 is used to extract liquid, the piston 57 plays a vital role. However, after long-term use, the outer surface of the piston 57 will be aged and worn, resulting in the piston 57 and the inner wall of the liquid storage sleeve 54 not being in close contact. When the liquid is extracted, the liquid collection rate will be slow or even no liquid can be extracted.

[0058] After being used for a period of time, the piston 57 becomes aged. Before extracting liquid, the rotating rod 561 can be rotated to drive the cross-shaped driving plate 562 to rotate. The arc edge of the cross-shaped driving plate 562 pushes the contact rod 564 to one side, and the contact rod 564 pushes the first arc plate 563 to expand outward. The first arc plate 563 squeezes the piston 57, so that the piston 57 contacts the side wall of the liquid storage sleeve 54, so that there is a certain pressure between the piston 57 and the liquid storage sleeve 54, thereby increasing the service life of the piston 57 and avoiding the failure of extracting body fluids due to wear of the piston 57.

[0059] like Fig.10 - Fig.13 As shown, the needle tube disinfection assembly 6 includes a mounting frame 61 fixed on one side of the sliding plate 9, the outer surface of the mounting frame 61 is rotatably connected to a support ring 614, a ring 67 is fixed at the edge of the upper surface of the support ring 614, the inside of the mounting frame 61 is symmetrically slidably connected to an extrusion rod 613, a second arc plate 612 is fixedly connected to one side where the two extrusion rods 613 are close to each other, a triangular block 616 is symmetrically fixedly connected to the inner surface of the ring 67, a rotating plate 69 is rotatably connected to the top of the mounting frame 61, an alcohol disinfection cotton 610 is fixedly connected to the bottom of the rotating plate 69, a skin disinfection assembly 68 is arranged on the inner surface of the mounting frame 61, a driving component is arranged on the outer surface of the mounting frame 61, a through groove is opened in the middle of the upper surface of the mounting frame 61, and the through groove passes through the rotating plate 69 and the alcohol disinfection cotton 610.

[0060] The driving component includes a driving rod 62 that rotates symmetrically on the outer surface of the mounting frame 61, a first annular rack 611 fixed to the top of the inner surface of the circular ring 67, and two driving sleeves 64 symmetrically fixed to the outer surface of the connecting sleeve 53. The inner surface of the driving sleeve 64 is fixedly connected with a driving slider 615. A spiral groove 65 is provided on the outer surface of the driving rod 62 near the top. A vertical groove 66 is provided on the bottom of the outer surface of the driving rod 62. The vertical groove 66 is communicated with the interior of the spiral groove 65. A first gear 63 is fixedly connected to the bottom of the driving rod 62. The first gear 63 is meshed with the first annular rack 611. The driving slider 615 is located inside the spiral groove 65. The driving slider 615 slides with the spiral groove 65 and the vertical groove 66.

[0061] Before the patient draws liquid, the needle tube 58 is exposed to the outside world, and the outer surface of the needle tube 58 is easily adhered to substances and easily contaminated by external bacteria. After the needle tube 58 is punctured, the needle tube 58 is easy to cause infection to the puncture site, so the connecting sleeve 53 is pressed downward to drive the needle tube 58 to move downward. Before puncture, the needle tube 58 passes through the through groove and enters the alcohol disinfection cotton 610. At the same time, the connecting sleeve 53 drives the driving sleeve 64 to move downward on the outside of the driving rod 62, and the driving sleeve 64 drives the driving slider 615 to slide inside the spiral groove 65. Since the driving sleeve 64 cannot rotate, it drives the driving rod 62 to rotate, drives the first gear 63 to rotate, and the first gear 63 drives the ring 67 to rotate through the first annular rack 611. The circular ring 67 drives the triangular block 616 to move, and the hypotenuse of the triangular block 616 contacts the squeezing rod 613, pushing the squeezing rod 613 and the second arc plate 612 to squeeze the alcohol disinfection cotton 610, and tightly wrap the alcohol disinfection cotton 610 around the outside of the needle tube 58, so that when the needle tube 58 moves, the alcohol disinfection cotton 610 wipes and disinfects the outside of the needle tube 58, and can also wipe off the substances adhered to the surface of the needle tube 58. When the driving slider 615 enters the interior of the vertical groove 66, the driving rod 62 and the first gear 63 no longer rotate, so that the triangular block 616 no longer moves, so that the second arc plate 612 always maintains a fixed squeezing pressure on the alcohol disinfection cotton 610, avoiding the disadvantage that the needle tube 58 cannot move downward due to excessive squeezing force.

[0062] like Fig.14 As shown, the skin disinfection component 68 includes a mounting plate 681 symmetrically fixed on the inner surface of the mounting frame 61, a second annular rack 683 fixed on the outer surface of the alcohol disinfection cotton 610, and a third annular rack 684 fixed on the inner surface of the support ring 614. An annular cavity 685 is opened inside the mounting frame 61, and the upper surface of the mounting plate 681 is rotatably connected to the second gear 682, and the second gear 682 is meshed with the third annular rack 684 and the second annular rack 683.

[0063] The third annular rack 684 is located inside the annular cavity 685 . A gear groove is formed on the inner surface of the annular cavity 685 . The second gear 682 is located inside the gear groove.

[0064] Before puncture, not only the needle tube 58 needs to be disinfected, but also the puncture position of the patient needs to be disinfected. Therefore, when the needle tube 58 moves downward, the ring 67 is driven to move through the transmission, and the ring 67 drives the supporting ring 614 to rotate. The supporting ring 614 drives the third annular rack 684 to rotate, and drives the second gear 682 to rotate. The second gear 682 drives the alcohol disinfection cotton 610 to rotate through the second annular rack 683. The alcohol disinfection cotton 610 wipes and disinfects the patient's skin. Therefore, before puncture, the needle tube 58 can not only disinfect itself, but also disinfect the patient's skin, killing two birds with one stone, improving work efficiency and reducing operation time.

[0065] Instructions for use: First, pull the piston rod 59 to drive the piston 57 to move upward to extract body fluids from the patient. When the body fluid inside the liquid storage sleeve 54 is full, the liquid storage sleeve 54 can be pulled out from the inside of the connecting sleeve 53, and the fan-shaped pipe 514 on the new liquid storage sleeve 54 is aligned with the fan-shaped opening 515 and inserted into the connecting sleeve 53 for installation. The extraction operation can be continued to avoid secondary puncture, which not only reduces the workload, but also reduces the pain caused by the secondary transfer to the patient. The butterfly plate 554 effectively seals the fan-shaped opening 515, and at the same time pushes the two pull rods 557 drives the movable plate 553 to move out from the interior of the storage chamber 551, and the movable plate 553 drives the two rubber sealing plugs 552 to move toward the interior of the fan-shaped pipe 514. The rubber sealing plugs 552 are completely moved to the interior of the fan-shaped pipe 514 to seal it. At this time, the liquid storage sleeve 54 can be pulled out from the connecting sleeve 53, so that in the process of replacing the liquid storage sleeve 54, the liquid inside the patient's body cannot overflow through the needle tube 58 and the interior of the connecting sleeve 53. Through the cooperation between the various components of the expansion assembly 56, the piston 57 can be expanded to improve its sealing performance.

[0066] Then, before puncturing, the driving rod 62 can be rotated by the cooperation between the driving slider 615 and the spiral groove 65, and the rotation of the ring 67 is driven by the transmission, so that the triangular block 616 squeezes the second arc plate 612, and the alcohol disinfection cotton 610 disinfects and wipes the surface of the needle tube 58. Through the mutual cooperation between the various components of the skin disinfection component 68, the puncture site can be disinfected to ensure that the patient's wound is not infected.

[0067] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A body fluid extraction device for patient treatment, including a U-shaped clamping plate (1). A first threaded rod (2) is threadedly connected inside the U-shaped clamping plate (1). The top of the first threaded rod (2) is rotatably connected to a clamping plate (3). A support plate (4) is fixedly connected to the upper surface of the U-shaped clamping plate (1). A sliding plate (9) is sleeved on the outer surface of the support plate (4). Features: One side of the sliding plate (9) is fixedly connected to a syringe disinfection assembly (6) for disinfection. An extraction assembly (5) for extracting body fluid is arranged on the syringe disinfection assembly (6). The extraction assembly (5) includes a guiding slide rod (51) fixed on the syringe disinfection assembly (6) and a fixing plate (513) fixed on the upper surface of the sliding plate (9). A telescopic rod (512) is slidably connected inside the fixing plate (513). One side of the telescopic rod (512) is fixedly connected to a trapezoidal sleeve block (510). A spring (511) is sleeved on the outer surface of the telescopic rod (512). A connecting sleeve (53) is slidably connected to the outer surfaces of the two guiding slide rods (51). A clamping plate (52) is fixedly connected to the outer surface of the connecting sleeve (53). A circular groove (516) is formed in the middle of the lower surface of the connecting sleeve (53). Two fan-shaped openings (515) are formed in the inner bottom of the connecting sleeve (53). A syringe (58) is fixedly connected to the lower surface of the connecting sleeve (53). A storage component is inserted into the inside of the connecting sleeve (53).

2. A body fluid extraction device for patient treatment according to claim 1, characterized in that: The storage component includes a liquid storage sleeve (54) inserted into the inside of the connecting sleeve (53). Two fan-shaped pipes (514) are fixedly connected to the lower surface of the liquid storage sleeve (54). A piston (57) is slidably connected inside the liquid storage sleeve (54). A piston rod (59) is fixedly connected to the upper surface of the piston (57). A replacement assembly (55) is arranged on the lower surface of the piston (57). An expansion assembly (56) is arranged inside the piston (57). The fan-shaped pipes (514) and the fan-shaped openings (515) are mutually adapted. A rubber sealing ring is arranged on the inner surface of the connecting sleeve (53). A sleeve plate is slidably connected to the outer surface of the guiding slide rod (51). The connecting sleeve (53) is fixedly connected to the sleeve plate. A servo motor (7) is fixedly connected to the edge of the upper surface of the U-shaped clamping plate (1). The output end of the servo motor (7) is fixedly connected to a second threaded rod (8). The top of the second threaded rod (8) penetrates through the inside of the sliding plate (9) and is threadedly connected.

3. A body fluid extraction device for patient treatment according to claim 2, characterized in that: The replacement component (55) includes a storage chamber (551) opened on the lower surface of the piston rod (59), a butterfly plate (554) rotatably connected to the top of the circular groove (516), and a worm (555) rotatably connected to the inside of the connecting sleeve (53), the lower surface of the butterfly plate (554) is fixedly connected to a worm gear (556), the worm gear (555) and the worm gear (556) are meshed with each other, two pull rods (557) are slidably connected to the top of the storage chamber (551), the bottom of the pull rod (557) is fixedly connected to a movable plate (553), and the lower surface of the movable plate (553) is fixedly connected to two rubber sealing plugs (552).

4. A body fluid extraction device for patient treatment according to claim 3, characterized in that: A rubber pad is provided on the upper surface of the butterfly plate (554), one side of the worm gear (555) extends out of the interior of the connecting sleeve (53), the rubber sealing plug (552) and the fan-shaped pipe (514) are adapted to each other, and the top of the pull rod (557) extends out of the interior of the liquid storage sleeve (54).

5. A body fluid extraction device for patient treatment according to claim 4, characterized in that: The expansion assembly (56) includes a first cavity (565) opened inside the piston (57), a rotating rod (561) is rotatably connected to the top of the first cavity (565), a cross-shaped driving plate (562) is fixedly connected to the bottom of the rotating rod (561), a second cavity (566) is opened on the inner surface of the first cavity (565), four first arc plates (563) are slidably connected inside the second cavity (566), and a contact rod (564) is fixedly connected to one side of the first arc plate (563).

6. A body fluid extraction device for patient treatment according to claim 5, characterized in that: The top of the rotating rod (561) passes through the piston rod (59) and extends out of the interior thereof. The rotating rod (561) and the piston rod (59) rotate relative to each other. A rubber ring is provided on the outer surface of the rotating rod (561). The pull rod (557) passes through the first cavity (565).

7. A body fluid extraction device for patient treatment according to claim 6, characterized in that: The needle tube disinfection assembly (6) comprises a mounting frame (61) fixed on one side of the sliding plate (9); a supporting ring (614) is rotatably connected to the outer surface of the mounting frame (61); a ring (67) is fixed at the edge of the upper surface of the supporting ring (614); a squeezing rod (613) is symmetrically slidably connected inside the mounting frame (61); a second arc-shaped plate (612) is fixedly connected to the side where two squeezing rods (613) are close to each other; a triangular block (616) is symmetrically fixedly connected to the inner surface of the ring (67); a rotating plate (69) is rotatably connected to the top of the mounting frame (61); an alcohol disinfection cotton (610) is fixedly connected to the bottom of the rotating plate (69); a skin disinfection assembly (68) is arranged on the inner surface of the mounting frame (61); a driving component is arranged on the outer surface of the mounting frame (61); a through groove is opened in the middle of the upper surface of the mounting frame (61), and the through groove passes through the rotating plate (69) and the alcohol disinfection cotton (610).

8. A body fluid extraction device for patient treatment according to claim 7, characterized in that: The driving component comprises a driving rod (62) symmetrically rotating on the outer surface of the mounting frame (61), a first annular rack (611) fixed on the top of the inner surface of the circular ring (67), and two driving sleeves (64) symmetrically fixed on the outer surface of the connecting sleeve (53); a driving slider (615) is fixedly connected to the inner surface of the driving sleeve (64); a spiral groove (65) is provided near the top of the outer surface of the driving rod (62); a vertical groove (66) is provided at the bottom of the outer surface of the driving rod (62); the vertical groove (66) is communicated with the inside of the spiral groove (65); a first gear (63) is fixedly connected to the bottom of the driving rod (62); the first gear (63) and the first annular rack (611) are meshed with each other; the driving slider (615) is located inside the spiral groove (65); the driving slider (615) slides with the spiral groove (65) and the vertical groove (66).

9. A body fluid extraction device for patient treatment according to claim 8, characterized in that: The skin disinfection component (68) comprises a mounting plate (681) symmetrically fixed on the inner surface of the mounting frame (61), a second annular rack (683) fixed on the outer surface of the alcohol disinfection cotton (610), and a third annular rack (684) fixed on the inner surface of the supporting ring (614); an annular cavity (685) is provided inside the mounting frame (61); a second gear (682) is rotatably connected to the upper surface of the mounting plate (681); the second gear (682) is meshed with the third annular rack (684) and the second annular rack (683).

10. A body fluid extraction device for patient treatment according to claim 9, characterized in that: The third annular rack (684) is located inside the annular cavity (685), a gear groove is provided on the inner surface of the annular cavity (685), and the second gear (682) is located inside the gear groove.

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