Automatic marrow cavity puncture infusion apparatus
By designing an automated bone marrow puncture infusion device and utilizing motor drive and linkage components to achieve automatic positioning and fixation of the puncture point, the problem of medical staff having difficulty in accurate positioning is solved, thereby improving the accuracy and efficiency of puncture.
Patent Information
- Application Number
- CN202511013198.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2025-09-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During bone marrow cavity puncture and infusion operations, it is difficult for medical staff to accurately locate the puncture point, resulting in unsatisfactory puncture results.
An automated intramedullary puncture infusion device was designed, which included an infusion seat, a drive mechanism, a slide, a positioning mechanism, and a puncture mechanism. Through motor drive, linkage components, and transmission devices, the puncture point was automatically positioned and fixed to ensure that the puncture seat was located at the patient's midline.
The automatic positioning and fixation of the puncture point is realized, the accuracy and efficiency of the puncture are improved, and the problem of inaccurate positioning in the prior art is solved.
Smart Images
Figure CN120616722A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and in particular to an automated bone marrow cavity puncture infusion device. Background Art
[0002] Bone marrow puncture and infusion is an important clinical rescue method, used for pre-hospital patients with severe trauma and those undergoing cardiopulmonary resuscitation. Before performing a bone marrow puncture and infusion, the puncture point must be located. The puncture point is usually located on the patient's proximal tibial plateau. However, during clinical procedures, medical staff sometimes cannot accurately locate the puncture point, resulting in less than ideal puncture results. Therefore, a bone marrow puncture infusion device is needed to assist medical staff in locating the puncture. Summary of the Invention
[0003] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.
[0004] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide an automated bone marrow cavity puncture infusion device, including an infusion seat, a driving mechanism fixed on the infusion seat, a first slide fixed on the infusion seat, a second slide fixed on the infusion seat, a first positioning mechanism provided on the first slide and the second slide, a second positioning mechanism provided on the first slide and the second slide, and a puncture mechanism lower than the first slide and the second slide; the first positioning mechanism includes a first slide rod slidably provided on the first slide and the second slide, a first positioning head slidably provided on the first slide, and a first linkage assembly provided on the first slide; the second positioning mechanism includes a second slide rod slidably provided on the first slide and the second slide, a second positioning head slidably provided on the second slide, and a second linkage assembly provided on the infusion seat and the second slide.
[0005] Specifically, the driving mechanism includes a motor fixed on the infusion seat, a first threaded rod fixed on the motor, a first ring sleeved on the first threaded rod, a locking seat provided on the first ring, a first rotating rod with one end rotatably provided on the locking seat and the other end rotatably provided on the first sliding rod, a second rotating rod with one end rotatably provided on the infusion seat and the other end rotatably provided on the first sliding rod, and a locking assembly provided on the first ring and the locking seat; the first rotating rod and the second rotating rod are rotatably arranged crosswise.
[0006] Specifically, the locking assembly includes a limit rod fixed on the infusion seat and symmetrically arranged on both sides of the locking seat, a first rack fixed on the limit rod, a first spring symmetrically fixed on the first ring, a first limit head fixed on the first spring, a first limit groove fixed on the locking seat, a first push block slidably arranged on the locking seat, a first locking block symmetrically slidably arranged on the first push block and in contact with the first push block, and a second spring with one end fixed on the first push block and the other end fixed on the locking seat.
[0007] Specifically, the first linkage assembly includes a first push plate slidably arranged on the first slide bar, a second push plate slidably arranged on the first slide bar, a first U-shaped block slidably arranged on the locking seat, a second U-shaped block slidably arranged on the locking seat and in contact with the first ring, a first gear rotatably arranged on the locking seat and in contact with the first U-shaped block and the second U-shaped block, a traction rope with one end fixed on the second push plate and the other end fixed on the first U-shaped block, a third spring with one end fixed on the second push plate and the other end fixed on the first slide bar, and a fourth spring with one end fixed on the first positioning head and the other end fixed on the first slide bar.
[0008] Specifically, the second linkage assembly includes a plurality of fifth springs with one end fixed on the second positioning head and the other end fixed on the second slide rod, a second rack fixed on the first slide groove, a first slider symmetrically slidably arranged on the second slide rod, a plurality of sixth springs with one end fixed on the first slider and the other end fixed on the second slide rod, a third slide rod fixed on one side of the first slider, and a transmission device arranged on the infusion seat.
[0009] Specifically, the transmission device includes a first sprocket rotatably provided on the infusion seat, a second sprocket rotatably provided on the infusion seat, a first chain sleeved on the first sprocket and the second sprocket, a second gear rotatably provided on the infusion seat, a third sprocket fixedly provided on the second gear, a second chain sleeved on the second sprocket and the third sprocket, a third gear rotatably provided on the infusion seat and meshed with the second gear, a fourth gear rotatably provided on the infusion seat and meshed with the third gear, a fourth sprocket fixedly provided on the fourth gear, a fifth sprocket rotatably provided on the infusion seat, and a third chain sleeved on the fourth sprocket and the fifth sprocket.
[0010] Specifically, the puncture mechanism includes a first puncture seat slidably arranged on the first slide groove and the second slide groove, a first telescopic rod with one end fixed on the first slide rod and the other end fixed on the first puncture seat, a second telescopic rod with one end fixed on the second slide rod and the other end fixed on the first puncture seat, an electric telescopic rod fixed on the first puncture seat, an electric slide rail fixed on the electric telescopic rod, a second puncture seat slidably arranged on the electric slide rail, and a driving drill fixed on the second puncture seat.
[0011] The beneficial effects of the present invention are: (1) The existing puncture and infusion methods require the puncture point to be positioned before puncture. The proximal tibial puncture and the proximal humeral puncture require the midline position of the leg and arm to be determined. The present invention provides a first telescopic rod and a second telescopic rod to ensure that the first puncture seat can move with the first slide bar and the second slide bar and can always maintain the midline position. When the first positioning head and the second positioning head are in contact with the two sides of the patient's leg or arm respectively, the first puncture seat is located on the midline of the leg or arm, achieving automatic positioning.
[0012] (2) When fixing a patient, the existing puncture infusion device is limited by the position of the patient's legs, resulting in a situation where the fixing head on one side has already made contact while the other side has not yet made contact. The present invention sets a transmission device to solve this problem. When the first slide moves, it drives the first chain to move, and then the third sprocket rotates. The third sprocket drives the second gear to rotate, and the second gear drives the third gear to rotate. The third gear drives the fourth gear to rotate, and the fourth gear drives the fourth sprocket to rotate, and then drives the third chain to move. The third chain drives the second slide to move, so that the first slide and the second slide can simultaneously clamp and fix the two sides of the patient's knee, and the puncture mechanism is located at the midline position of the first slide and the second slide. The second slide is connected to the third chain through the third slide bar. Since the diameter of the fourth gear is larger than the second gear, the movement speed of the second slide will be greater than that of the first slide. The second positioning head will first contact the patient's skin. After the second positioning head moves, it drives the first slider and the third slider to move, so that the first slider is fixed on the second rack, and the third slider is disengaged from the third chain. At this time, the first slider can still be driven by the first chain to move on the first slide and the second slide. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.
[0014] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.
[0015] In the attached figure: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A top view of the present invention; Figure 3 for Figure 2 Line section of AA in the middle; Figure 4 for Figure 3 Linear section of the middle BB; Figure 5 It is a front view of a part of the structure of the present invention; Figure 6 for Figure 5 Linear section of CC; Figure 7 for Figure 6 Linear section of the middle DD; Figure 8 for Figure 7 A partial enlarged view of point E in the middle; Figure 9 for Figure 6 Linear section of the middle FF; Figure 10 It is a front view of a part of the structure of the present invention; Figure 11 for Figure 10 Linear section of middle GG; Figure 12 for Figure 11 Line section of HH. DETAILED DESCRIPTION
[0016] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.
[0017] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0018] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0019] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".
[0020] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0021] Reference Figures 1-12As shown, an automated bone marrow cavity puncture infusion device according to the present invention comprises an infusion seat 1, a driving mechanism 2 fixed on the infusion seat, a first slide 3 fixed on the infusion seat, a second slide 4 fixed on the infusion seat, a first positioning mechanism 5 provided on the first slide and the second slide, a second positioning mechanism 6 provided on the first slide and the second slide, and a puncture mechanism 7 lower than the first slide and the second slide; the first positioning mechanism comprises a first slide bar 51 slidably provided on the first slide and the second slide, a first positioning head 52 slidably provided on the first slide, and a first linkage assembly 53 provided on the first slide; the second positioning mechanism comprises a second slide bar 61 slidably provided on the first slide and the second slide, a second positioning head 52 slidably provided on the first slide, and a first linkage assembly 53 provided on the first slide; The second positioning head 62 and the second linkage assembly 63 provided on the infusion seat and the second slide bar; the present invention is used for proximal tibial puncture and infusion; slots and adjustable splints are provided at both ends of the infusion seat, which can fix the infusion seat on the railings at both ends of the bed. When in use, the infusion seat is aligned with the patient's knee, and the direction of the infusion seat can be adjusted to adjust the puncture on the left and right sides; the driving mechanism is used to drive the first positioning mechanism and the second positioning mechanism to move for positioning; the first positioning mechanism and the second positioning mechanism are used to locate the midline position of the puncture point; the puncture mechanism can perform puncture; the first positioning head and the second positioning head are respectively located on both sides of the patient's knee to fix the patient's leg, and during the fixation process, the puncture mechanism can be displaced to the midline position of the first positioning head and the second positioning head.
[0022] Specifically, the driving mechanism includes a motor 21 fixed on the infusion seat, a first threaded rod 22 fixed on the motor, a first ring 23 sleeved on the first threaded rod, a locking seat 24 provided on the first ring, a first rotating rod 25 rotatably provided on the locking seat at one end and rotatably provided on the first slide rod at the other end, a second rotating rod 26 rotatably provided on the infusion seat at one end and rotatably provided on the first slide rod at the other end, and a locking assembly 27 provided on the first ring and the locking seat; the first rotating rod and the second rotating rod are rotatably arranged crosswise; the inner wall of the first ring is provided with a thread, which engages with the first threaded rod; the motor drives the first threaded rod to rotate, thereby causing the first ring and the locking seat to move in the vertical direction, thereby pushing the first rotating rod and the second rotating rod to rotate, causing the first slide rod to move on the first slide groove and the second slide groove; the locking assembly is used to connect the locking seat and the first ring, and after the first positioning head is fully in contact with one side of the patient's knee, the locking seat and the first ring will disengage.
[0023] Specifically, the locking assembly includes a limit rod 271 fixed on the infusion seat and symmetrically arranged on both sides of the locking seat, a first rack 272 fixed on the limit rod, a first spring 273 symmetrically fixed on the first ring, a first limit head 274 fixed on the first spring, a first limit groove 275 fixed on the locking seat, a first push block 276 slidingly arranged on the locking seat, a first locking block 277 symmetrically slidingly arranged on the first push block and in contact with the first push block, and a second spring 278 with one end fixed on the first push block and the other end fixed on the locking seat; the limit rod can limit the first ring and the locking seat to prevent the first ring and the locking seat from being driven to rotate by the first threaded rod; the second spring is initially in a compressed state; the elastic coefficient of the first spring is greater than that of the second spring.
[0024] Specifically, the first linkage assembly includes a first push plate 531 slidably arranged on the first sliding rod, a second push plate 532 slidably arranged on the first sliding rod, a first U-shaped block 533 slidably arranged on the locking seat, a second U-shaped block 534 slidably arranged on the locking seat and in contact with the first ring, a first gear 535 rotatably arranged on the locking seat and in contact with the first U-shaped block and the second U-shaped block, a traction rope 536 with one end fixed on the second push plate and the other end fixed on the first U-shaped block, a third spring 537 with one end fixed on the second push plate and the other end fixed on the first sliding rod, and a fourth spring 538 with one end fixed on the first positioning head and the other end fixed on the first sliding rod; the traction rope has no elasticity and is in a taut state; when the first positioning head is in contact with the patient's skin After the skin contacts, it will be squeezed and moved, and the first positioning head will push the first push plate to move, and the protrusion on the first push plate will contact the oblique groove on the second push plate, and the second push plate will move downward. The third spring is stretched and will also pull the traction rope. Since the traction rope has no elasticity and is in a taut state, the traction rope will pull the first U-shaped block to move downward, thereby driving the first gear to rotate, and then driving the second U-shaped block to slide, so that the second U-shaped block disengages from the first ring. When the first ring continues to move downward, the first limit head will disengage, and the second spring will push the first push block to move, thereby causing the first locking blocks on both sides to move outward and engage with the first rack to fix the locking seat; the first U-shaped block is provided with teeth on the side in contact with the first gear; the second U-shaped block is provided with teeth on the side in contact with the first gear.
[0025] Specifically, the second linkage assembly includes a plurality of fifth springs 631, one end of which is fixed on the second positioning head and the other end is fixed on the second slide bar, a second rack 632 fixed on the first slide groove, a first slider 633 symmetrically slidably arranged on the second slide bar, a plurality of sixth springs 634, one end of which is fixed on the first slider and the other end is fixed on the second slide bar, a third slider 635 fixed on one side of the first slider, and a transmission device 636 arranged on the infusion seat; when the second positioning head is completely in contact with one side of the patient's knee, the second positioning head will be squeezed and moved, and then squeeze the first slider to move to both sides, meshing with the second rack, so that the second slide bar is fixed; the transmission device is used to transmit the movement of the first slide bar and the second slide bar; the side of the first slider in contact with the second rack is provided with teeth.
[0026] Specifically, the transmission device includes a first sprocket 6361 rotatably provided on the infusion seat, a second sprocket 6362 rotatably provided on the infusion seat, a first chain 6363 sleeved on the first sprocket and the second sprocket, a second gear 6364 rotatably provided on the infusion seat, a third sprocket 6365 fixedly provided on the second gear, a second chain 6366 sleeved on the second sprocket and the third sprocket, a third gear 6367 rotatably provided on the infusion seat and meshed with the second gear, a fourth gear 6368 rotatably provided on the infusion seat and meshed with the third gear, a fourth sprocket fixedly provided on the fourth gear, a fifth sprocket 6369 rotatably provided on the infusion seat, and a third chain 6360 sleeved on the fourth sprocket and the fifth sprocket; the diameters of the first to fourth sprockets are the same; the diameter of the fourth gear is much larger than that of the second gear; the diameters of the second gear and the third gear are the same; one side of the first slide is connected to the first chain; when the first When one slide moves, it will drive the first chain to move, thereby making the third sprocket rotate, the third sprocket drives the second gear to rotate, and the second gear drives the third gear to rotate; the third gear drives the fourth gear to rotate, and the fourth gear drives the fourth sprocket to rotate, thereby driving the third chain to move, and the third chain drives the second slide to move, so that the first slide and the second slide are synchronously clamped and fixed to both sides of the patient's knee, and the puncture mechanism is in the midline position of the first slide and the second slide; the second slide is connected to the third chain through the third sliding bar. Since the diameter of the fourth gear is larger than the second gear, the moving speed of the second slide will be greater than the first slide, and the second positioning head will first contact the patient's skin. After the second positioning head moves, it drives the first slider and the third sliding bar to move, so that the first slider is fixed on the second rack, and the third sliding bar is disengaged from the third chain. At this time, the first sliding bar can still be driven by the first chain to move on the first slide groove and the second slide groove.
[0027] Specifically, the puncture mechanism includes a first puncture seat 71 slidably arranged on the first slide groove and the second slide groove, a first telescopic rod 72 with one end fixed on the first slide rod and the other end fixed on the first puncture seat, a second telescopic rod 73 with one end fixed on the second slide rod and the other end fixed on the first puncture seat, an electric telescopic rod 74 fixed on the first puncture seat, an electric slide rail 75 fixed on the electric telescopic rod, a second puncture seat 76 slidably arranged on the electric slide rail, and a driving drill 77 fixed on the second puncture seat; the driving drill, puncture needle sleeve and needle core are existing technologies; the first telescopic rod and the second telescopic rod are spring telescopic rods with the same spring elastic coefficient. When the first slide and the second slide move, the first telescopic rod and the second telescopic rod will contract and the spring will be compressed. Since the spring elastic coefficients of the first telescopic rod and the second telescopic rod are the same, the elasticity of the springs on both sides will be the same regardless of the positions of the first slide and the second slide, that is, the lengths of the first telescopic rod and the second telescopic rod are the same, and the first puncture seat will always be located on the midline of the first slide and the second slide, that is, located at the midline position of the patient's leg. Then, the position of the second puncture seat on the electric slide rail is adjusted, the puncture needle cover and the needle core are fixed on the driving drill, the electric telescopic rod is controlled to extend, and puncture is performed. After the puncture is completed, the needle core is removed, and the puncture needle cover is connected to the infusion bag for infusion.
[0028] The above descriptions are merely some preferred embodiments of the present disclosure and illustrate the underlying technical principles. Those skilled in the art should understand that the scope of the invention encompassed by the embodiments of the present disclosure is not limited to technical solutions formed by specific combinations of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the aforementioned inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.
Claims
1. An automated bone marrow puncture infusion device, characterized by: It includes an infusion seat, a driving mechanism fixed on the infusion seat, a first slide fixed on the infusion seat, a second slide fixed on the infusion seat, a first positioning mechanism provided on the first slide and the second slide, a second positioning mechanism provided on the first slide and the second slide, and a puncture mechanism lower than the first slide and the second slide; the first positioning mechanism includes a first slide rod slidably provided on the first slide and the second slide, a first positioning head slidably provided on the first slide, and a first linkage component provided on the first slide; the second positioning mechanism includes a second slide rod slidably provided on the first slide and the second slide, a second positioning head slidably provided on the second slide, and a second linkage component provided on the infusion seat and the second slide.
2. The automated bone marrow puncture infusion device according to claim 1, characterized in that: The driving mechanism includes a motor fixed on the infusion seat, a first threaded rod fixed on the motor, a first ring sleeved on the first threaded rod, a locking seat provided on the first ring, a first rotating rod with one end rotatably provided on the locking seat and the other end rotatably provided on the first sliding rod, a second rotating rod with one end rotatably provided on the infusion seat and the other end rotatably provided on the first sliding rod, and a locking assembly provided on the first ring and the locking seat; the first rotating rod and the second rotating rod are rotatably arranged crosswise.
3. The automated bone marrow puncture infusion device according to claim 2, characterized in that: The locking assembly includes a limiting rod fixed on the infusion seat and symmetrically arranged on both sides of the locking seat, a first rack fixed on the limiting rod, a first spring symmetrically fixed on the first ring, a first limiting head fixed on the first spring, a first limiting groove fixed on the locking seat, a first push block slidably arranged on the locking seat, a first locking block symmetrically slidably arranged on the first push block and in contact with the first push block, and a second spring with one end fixed on the first push block and the other end fixed on the locking seat.
4. The automated bone marrow puncture infusion device according to claim 2, characterized in that: The first linkage assembly includes a first push plate slidably arranged on the first slide bar, a second push plate slidably arranged on the first slide bar, a first U-shaped block slidably arranged on the locking seat, a second U-shaped block slidably arranged on the locking seat and in contact with the first ring, a first gear rotatably arranged on the locking seat and in contact with the first U-shaped block and the second U-shaped block, a traction rope with one end fixed on the second push plate and the other end fixed on the first U-shaped block, a third spring with one end fixed on the second push plate and the other end fixed on the first slide bar, and a fourth spring with one end fixed on the first positioning head and the other end fixed on the first slide bar.
5. The automated bone marrow puncture infusion device according to claim 1, characterized in that: The second linkage assembly includes a plurality of fifth springs with one end fixed on the second positioning head and the other end fixed on the second slide rod, a second rack fixed on the first slide groove, a first slider symmetrically slidably arranged on the second slide rod, a plurality of sixth springs with one end fixed on the first slider and the other end fixed on the second slide rod, a third slide rod fixed on one side of the first slider, and a transmission device arranged on the infusion seat.
6. The automated bone marrow puncture infusion device according to claim 5, characterized in that: The transmission device includes a first sprocket rotatably provided on the infusion seat, a second sprocket rotatably provided on the infusion seat, a first chain sleeved on the first sprocket and the second sprocket, a second gear rotatably provided on the infusion seat, a third sprocket fixedly provided on the second gear, a second chain sleeved on the second sprocket and the third sprocket, a third gear rotatably provided on the infusion seat and meshed with the second gear, a fourth gear rotatably provided on the infusion seat and meshed with the third gear, a fourth sprocket fixedly provided on the fourth gear, a fifth sprocket rotatably provided on the infusion seat, and a third chain sleeved on the fourth sprocket and the fifth sprocket.
7. The automated bone marrow puncture infusion device according to claim 1, characterized in that: The puncture mechanism includes a first puncture seat slidably arranged on the first slide groove and the second slide groove, a first telescopic rod with one end fixed on the first slide rod and the other end fixed on the first puncture seat, a second telescopic rod with one end fixed on the second slide rod and the other end fixed on the first puncture seat, an electric telescopic rod fixed on the first puncture seat, an electric slide rail fixed on the electric telescopic rod, a second puncture seat slidably arranged on the electric slide rail, and a driving drill fixed on the second puncture seat.