Auxiliary device for lateral prone position bone marrow puncture
By designing a bone marrow aspiration auxiliary device that integrates a bed, upper limb fixation mechanism, and lower limb fixation mechanism, the problem of unstable patient position was solved, the stability and safety of the puncture operation were achieved, and the accuracy of diagnostic results and patient comfort were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2026-04-07
AI Technical Summary
The existing bone marrow aspiration operating table cannot effectively fix the patient's position, resulting in inaccurate puncture location, increasing the difficulty of diagnosis and potentially causing patient discomfort, thus affecting the accuracy and safety of the diagnostic results.
An auxiliary device was designed, comprising a bed, an upper limb fixation mechanism, and a lower limb fixation mechanism. Through a multi-joint rotating arm and a sliding fixing rod, the device ensures the patient's positional stability in a lateral or prone position and prevents movement.
It enables precise adjustment and stable fixation of the patient's position, reduces puncture failure, improves diagnostic accuracy, reduces patient discomfort, and ensures operational safety.
Smart Images
Figure CN224085628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to an auxiliary device for bone marrow aspiration in the lateral prone position. Background Technology
[0002] Bone marrow aspiration is the most common diagnostic procedure in hematology. Traditional bone marrow aspiration and biopsy procedures often require patients to be in a lateral or prone position on a standard examination bed. However, with the rapid advancement of modern medical technology, bone marrow examination has expanded beyond morphological observation to include more sophisticated fields such as genetics and molecular biology. This shift places higher demands on bone marrow aspiration biopsy: it requires not only ensuring accurate puncture site placement but also collecting a sufficient amount of bone marrow fluid and a bone marrow tissue sample of a certain length to meet the needs of deeper diagnostic analysis. In this context, the design and optimization of the bone marrow aspiration operating table are particularly important, as they directly affect the accuracy of diagnostic results and the patient's experience. Currently, most bone marrow aspiration operating tables on the market consist of only a simple bed frame and pillow, requiring patients to lie prone or on their side for the examination. However, in this position, patients are prone to unintentional displacement, which not only directly affects the accuracy of the puncture procedure and increases the difficulty of diagnosis but may also cause unnecessary physical harm to the patient, such as accidental injury to the puncture site or increased discomfort. Therefore, developing an auxiliary device suitable for bone marrow aspiration in the lateral or prone positions, which can effectively fix the patient's position and prevent movement during the procedure, thereby ensuring the stability and safety of the puncture operation, is an urgent problem that needs to be solved. Utility Model Content
[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide an auxiliary device for bone marrow aspiration in the lateral prone position, including a bed, an upper limb fixation mechanism, and a lower limb fixation mechanism. The upper limb fixation mechanism and the lower limb fixation mechanism ensure that the patient's position remains stable during the operation, thereby avoiding puncture failure and degradation of the sample.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An auxiliary device for lateral prone bone marrow aspiration includes: a bed body with ventilation holes and a baffle at the rear end of the bed body; the bed body having multiple transverse grooves at intervals along its longitudinal direction near the rear end, and a longitudinal groove extending through the multiple transverse grooves; an upper limb fixation mechanism slidably disposed on both sides of the bed body, the upper limb fixation mechanism including a multi-joint rotating arm slidably disposed along the longitudinal direction of the bed body, and a fixing plate disposed at one end of the multi-joint rotating arm and capable of rotating from vertical to horizontal and from horizontal to vertical, for supporting and fixing the patient's chest or back; and a lower limb fixation mechanism including at least two fixing rods slidably disposed in the transverse grooves and the longitudinal grooves for fixing the patient's legs, and a locking member disposed at the bottom of the bed body for locking the fixing rods.
[0006] Furthermore, square rods are respectively provided on both sides of the bed along its longitudinal direction. The multi-joint rotating arm includes multiple connecting rods that are rotatably connected to each other. The end of the connecting rod at the first end has a square hole that matches the square rod, and the end of the connecting rod at the last end is connected to the fixing plate.
[0007] Furthermore, a clamping member for fixing the multi-joint rotating arm is provided at the connection between the square rod and the connecting rod. The clamping member includes a clamping plate and a plurality of latches extending a certain length from the bottom of the clamping plate to form a clamping space for clamping the square rod and the connecting rod. The clamping plate is provided with a threaded hole for connecting to a screw, and the screw presses against one side of the connecting rod.
[0008] Furthermore, connecting blocks are bolted to both ends of the square rod, and the connecting blocks are located on the side of the bed.
[0009] Furthermore, the upper surface of the fixation plate has a recessed portion for abutting against the patient's chest or back, the recessed portion being provided with a plurality of flexible spheres and having straps on its sides.
[0010] Furthermore, the fixing rod includes a rotating column, a connecting column, and a stud arranged in series. The bottom of the rotating column abuts against the bed. The connecting column is slidably disposed in the transverse slide groove or the longitudinal slide groove. A locking block is rotatably disposed on the stud, and the locking block is slidably embedded in the locking member.
[0011] Furthermore, the locking member includes a plurality of horizontal bars arranged at certain intervals along the longitudinal direction of the bed and a vertical bar that extends longitudinally through the plurality of horizontal bars, wherein the horizontal bars cooperate with the transverse sliding groove, the vertical bar cooperates with the longitudinal sliding groove, the interior of the horizontal bars and the vertical bar forms a first through groove for the locking block to slide, and the upper and lower ends of the horizontal bars and the vertical bar form a second through groove through which the stud penetrates.
[0012] Furthermore, the rotating column is also equipped with straps for fixing the patient's leg joints.
[0013] Furthermore, a shelf is slidably disposed inside the baffle, the shelf being able to extend vertically upward from inside the baffle and rotate to a horizontal position.
[0014] Furthermore, a headrest for side-lying position is detachably mounted above the ventilation holes.
[0015] This utility model has the following advantages:
[0016] 1. This utility model's lateral-prone bone marrow aspiration auxiliary device integrates a bed, an upper limb fixation mechanism, and a lower limb fixation mechanism, achieving precise adjustment and stable fixation of the patient's position. The upper limb fixation mechanism uses a multi-joint rotating arm to flexibly adjust the position of the fixation plate, ensuring effective support for the patient's chest in the lateral position or back in the prone position. The lower limb fixation mechanism uses a combination of sliding fixation rods and locking elements to flexibly fix the patient's legs, such as fixing the knee and ankle joints in the lateral position and the lower leg in the prone position, ensuring stable patient position throughout the procedure and effectively preventing puncture failure and specimen degradation. Especially during prone puncture, it significantly reduces discomfort such as chest tightness and difficulty breathing.
[0017] 2. The lateral prone position bone marrow aspiration auxiliary device of this utility model enhances stability by fixing the sliding position of the upper limb fixation mechanism with clamping components; the flexible ball set on the fixation plate can improve patient comfort, and the straps on it can further fix the patient's limb; the ventilation hole design of the bed ensures smooth breathing for the patient; a storage board is slidably installed in the baffle at the rear end of the bed, and the storage board can be pulled out and rotated to be mounted on the top of the fixation rod, which is convenient for placing puncture items and provides convenience for doctors to perform aseptic operations. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the auxiliary device for bone marrow aspiration in the prone position according to this utility model.
[0019] Figure 2 This is a three-dimensional structural diagram of the auxiliary device for bone marrow aspiration in the lateral prone position according to this utility model.
[0020] Figure 3 yes Figure 1 A magnified view of a portion at point A.
[0021] Figure 4 yes Figure 1 A magnified view of a portion of point B.
[0022] Figure 5 yes Figure 1 A magnified view of a portion of point C.
[0023] Figure 6 This is a three-dimensional structural diagram of the upper limb fixation mechanism of this utility model when it is stored.
[0024] Figure 7 This is a three-dimensional structural diagram of the upper limb fixation mechanism of this utility model when deployed for use in a prone position.
[0025] Figure 8 This is a three-dimensional structural diagram of the upper limb fixation mechanism of this utility model when deployed for use in a lateral decubitus position.
[0026] Figure 9 This is a three-dimensional structural diagram of the clamping component of this utility model.
[0027] Figure 10 This is a three-dimensional sectional view of the auxiliary device for bone marrow aspiration in the prone position according to this utility model.
[0028] Figure 11 This is a three-dimensional structural diagram of the lower limb fixation mechanism of this utility model.
[0029] Figure 12 yes Figure 11 A magnified view of a portion of point D.
[0030] Figure 13 This is a three-dimensional structural diagram of the fixing rod of this utility model.
[0031] Figure 14 This is a three-dimensional structural diagram of the locking component of this utility model.
[0032] Figure 15 This is a three-dimensional structural diagram of the auxiliary device for bone marrow aspiration in the prone position, as described in this utility model, showing the unfolded placement plate.
[0033] Figure 16 This is a three-dimensional structural diagram of the shelf of this utility model.
[0034] Wherein, 1 is the bed frame, 101 is a ventilation hole, 102 is a baffle, 102a is a sliding groove, 102b is a limiting block, 103 is a transverse sliding groove, 104 is a longitudinal sliding groove, 105 is a square rod, 106 is a connecting block, 107 is a storage plate, 107a is a limiting protrusion, 107b is a handle, 108 is a headrest, 2 is an upper limb fixation mechanism, 201 is a multi-joint rotating arm, 201a is a connecting rod, 201a1 is a square hole, 202 is a fixing plate, and 202a is a recess. In this section, 202b is a flexible sphere, 202c is a strap, 3 is a lower limb fixation mechanism, 301 is a fixing rod, 301a is a rotating column, 301b is a connecting column, 301c is a stud, 301d is a locking block, 302 is a locking component, 302a is a horizontal bar, 302b is a vertical bar, 302c is a first through slot, 302d is a second through slot, 4 is a clamping component, 401 is a clamping plate, 401a is a threaded hole, 402 is a buckle, 403 is a clamping space, and 404 is a screw. Detailed Implementation
[0035] The following description is merely illustrative in nature and is in no way intended to limit the present invention, its application, or use. It will be further understood that the terms “comprising” and / or “including” as used herein specify the presence of the mentioned features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. It will be understood that when an element, component, and / or part is referred to as “connected to another element, component, and / or part,” it may be directly connected to another element, component, and / or part, or there may be intermediate elements. It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, components, and / or parts, these elements, components, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, or part from another element, component, or part. Therefore, the first element, component, or part discussed below may be referred to as the second element, component, or part without departing from the teachings of this invention. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the relevant field and / or the context of this specification, and will not be interpreted in an idealized or overly formal sense unless expressly defined herein.
[0036] It should be understood that, for clarity, the accompanying drawings are not drawn to scale, and the same or similar reference numerals indicate the same or similar parts or components. Furthermore, it should be understood that any embodiments described in this application and the technical features they include can be combined with each other.
[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0038] like Figure 1 and Figure 2 As shown, an auxiliary device for bone marrow aspiration in the prone position includes a bed 1, an upper limb fixation mechanism 2, and a lower limb fixation mechanism 3. The upper limb fixation mechanism 2 and the lower limb fixation mechanism 3 are mounted on the bed 1. The bed 1 includes a ventilation hole 101 and a baffle 102 at the rear end of the bed 1. The ventilation hole 101 is located at the front end of the bed 1, and its opening is designed so that the patient's head is positioned within the ventilation hole 101 when in the prone position, ensuring smooth breathing. A ring-shaped pillow can also be provided on the outer edge of the ventilation hole 101 to support the patient's neck and improve comfort. A headrest 108 for the lateral position is detachably mounted above the ventilation hole 101, and can be removed to expose the ventilation hole 101 when in the prone position. The bed 1 has multiple transverse grooves 103 at certain intervals along its longitudinal direction near the rear end, and a longitudinal groove 104 extending through the multiple transverse grooves 103. There are four transverse slides 103 of equal length, and one longitudinal slide 104, which runs longitudinally through the middle of the four transverse slides 103, forming a sliding channel for receiving the movement of the lower limb fixation mechanism 3. The bed body 1 is a typical operating bed structure, including a bed frame, a mattress mounted on the bed frame, and support legs mounted at the bottom of the bed frame, which keep the bed frame a certain distance from the ground.
[0039] like Figure 1-4As shown in Figure 9, the upper limb fixation mechanism 2 is slidably disposed on both sides of the bed 1. The upper limb fixation mechanism 2 includes a multi-joint rotating arm 201 slidably disposed along the longitudinal direction of the bed 1, and a fixing plate 202 disposed at one end of the multi-joint rotating arm 201 and capable of rotating from vertical to horizontal and from horizontal to vertical, which is used to support and fix the patient's chest or back. The multi-joint rotating arm 201 includes multiple connecting rods 201a that are rotatably connected to each other. Six connecting rods 201a are shown in the figure. Two adjacent connecting rods 201a are connected by bolts, allowing the included angle between adjacent connecting rods 201a to be adjusted by tightening or loosening the bolts, thereby precisely adjusting the position of the fixing plate 202 so that it can fit the patient's chest or back. Of course, the connection method of the connecting rods 201a can also be meshing, bearings, etc. The bed body 1 has square rods 105 arranged on both sides along its longitudinal direction. The end of the connecting rod 201a at the first end has a square hole 201a1 that matches the square rod 105. That is, the connecting rod 201a at the first end is slidably connected to the square rod 105. The cooperation between the square rod 105 and the square hole 201a1 can lock the radial position of the multi-joint rotating arm 201 and prevent the multi-joint rotating arm 201 from rotating radially. The end of the connecting rod 201a at the tail end is connected to the fixing plate 202. Furthermore, in order to lock the sliding position of the multi-joint rotating arm 201, a clamping member 4 for fixing the multi-joint rotating arm 201 is provided at the connection between the square rod 105 and the connecting rod 201a. The clamping member 4 includes a clamping plate 401 and a plurality of latching rods 402 extending a certain length from the bottom of the clamping plate 401 to form a clamping space 403 for clamping the square rod 105 and the connecting rod 201a. In this embodiment, there are four latching rods 402. The four latching rods 402 and the clamping plate 401 together form a clamping space for clamping the square rod 105. The clamping space 403 of the 05 and the connecting rod 201a, the end of the buckle 402 also has a protrusion for fastening the square rod 105, and the clamping plate 401 is provided with a threaded hole 401a connected to the screw 404. The screw 404 presses against one side of the connecting rod 201a. When the connecting rod 201a moves to the desired position, the clamping member 4 is inserted between the square rod 105 and the connecting rod 201a. Then, by rotating the screw 404, it is pressed against one side of the connecting rod 201a, thereby locking the sliding position of the connecting rod 201a.
[0040] Continue to refer to Figure 6-8When the multi-joint rotating arm 201 is not in use, the multiple connecting rods 201a in the multi-joint rotating arm 201 are folded and stored on both sides of the bed 1, without affecting the normal use of the bed 1. When the multi-joint rotating arm 201 is unfolded for the prone position, the fixing plate 202 is roughly parallel to the bed 1 by rotating the multiple connecting rods 201a, making it easy to press the fixing plate 202 onto the patient's back, effectively preventing the patient from arching their back due to pain during the puncture. Similarly, when the multi-joint rotating arm 201 is used for the lateral position, the fixing plate 202 can be roughly perpendicular to the bed 1 by adjusting the rotation of the connecting rods 201a. At this time, the fixing plate 202 can be pressed onto the patient's chest, preventing the patient from moving their upper limbs due to pain during the puncture, which would affect the sampling. The square rod 105 has connecting blocks 106 bolted to both ends. The connecting blocks 106 are located on the side of the bed frame 1. This allows the square rod 105 to rotate axially or be fixed by adjusting the tightness of the bolts on the connecting blocks 106. Therefore, when the multi-joint rotating arm 201 is not in use, it can be rotated under the bed frame 1 for storage, thus avoiding any obstruction to medical staff's normal use of the bed frame 1 for other operations.
[0041] like Figure 1 , 2 As shown in Figures 6-8, the upper surface of the fixation plate 202 has a recessed portion 202a for abutting against the patient's chest or back. This recessed portion 202a conforms more closely to the curves of the human body. Multiple flexible spheres 202b are provided on the recessed portion 202a, which effectively distribute pressure and improve the patient's comfort and experience during treatment. The side of the recessed portion 202a has straps 202c. The straps 202c extend from one side of the recessed portion 202a, wrap around the patient's limb, and then fasten to the other side of the recessed portion 202a, further enhancing the fixation effect and patient stability. These straps 202c are made of a moderately elastic and breathable material, ensuring both limb fixation and preventing unnecessary movement, while also guaranteeing comfort and freedom of pressure during prolonged wear.
[0042] like Figure 10-14As shown, the lower limb fixation mechanism 3 includes at least two fixing rods 301 slidably disposed in the transverse slide groove 103 and the longitudinal slide groove 104 for fixing the patient's legs, and a locking member 302 disposed at the bottom of the bed 1 for locking the fixing rods 301. The fixing rod 301 includes a rotating column 301a, a connecting column 301b, and a stud 301c arranged in series. The bottom of the rotating column 301a abuts against the bed 1. The connecting column 301b is slidably disposed in the transverse slide groove 103 or the longitudinal slide groove 104. A locking block 301d is rotatably disposed on the stud 301c. The locking block 301d is slidably embedded in the locking member 302. The diameter of the rotating column 301a is larger than the diameter of the connecting column 301b. The diameter of the connecting column 301b is equal to the inner diameter of the transverse slide groove 103 and the longitudinal slide groove 104, respectively. In this way, the rotating column 301a can be stably supported on the bed 1, while the connecting column 301b can slide within the transverse slide groove 103 and the longitudinal slide groove 104. In practical applications, the configuration of the fixing rod 301 can be flexibly adjusted according to the patient's position. For example, in the prone position, two fixing rods 301 are symmetrically distributed within the same transverse groove 103, forming a space to accommodate the patient's legs, effectively preventing the patient's legs from swaying from side to side during the puncture procedure. In the lateral position, two fixing rods 301 are also configured. One fixing rod 301 is positioned on the right side of the forward transverse groove 103, close to the inner side of the knee joint, i.e., the inner side of the knee joint wraps around the fixing rod 301. The other is located on the left side of the rearward transverse groove 103, close to the inner side of the ankle joint, i.e., the inner side of the ankle joint holds the fixing rod 301. If the patient's limbs are turned to the other side, the two fixing rods 301 are arranged in the opposite direction. This layout not only ensures the stability of the patient's lower limbs but also improves comfort and safety. The locking element 302 includes multiple horizontal bars 302a arranged at certain intervals along the longitudinal direction of the bed 1 and a vertical bar 302b that runs longitudinally through the multiple horizontal bars 302a, forming a stable locking frame. The horizontal bar 302a engages with the transverse slide groove 103, and the vertical bar 302b engages with the longitudinal slide groove 104. The interiors of the horizontal bar 302a and the vertical bar 302b form a first through groove 302c for the sliding of the locking block 301d. The shape of the first through groove 302c matches the shape and size of the locking block 301d, ensuring that the locking block 301d can slide smoothly and lock within it. The upper and lower ends of the horizontal bar 302a and the vertical bar 302b form a second through groove 302d through which the stud 301c passes. In use, when the rotating column 301a moves to the appropriate position, rotating the rotating column 301a drives the stud 301c to thread into the locking block 301d, causing the locking block 301d to be locked in the first through groove 302c, thus achieving a stable lock of the rotating column 301a and the entire fixed rod 301. In an embodiment not shown, the rotating column 301a is also provided with a strap for fixing the patient's leg joints to further fix the patient's legs.
[0043] like Figure 5 , 15 As shown in Figure 16, a shelf 107 is slidably disposed within the baffle 102. The shelf 107 can extend vertically upward from within the baffle 102 and rotate to a horizontal position. The top of the baffle 102 has a groove 102a for receiving and guiding the vertical movement of the shelf 107. Limiting protrusions 107a are provided on both sides of the lower part of the shelf 107. Limiting blocks 102b, which cooperate with the limiting protrusions 107a, are respectively provided on both sides of the top of the baffle 102. When the shelf 107 rises vertically along the groove 102a to a preset height, the limiting protrusions 107a engage with the limiting blocks 102b, thus physically preventing the shelf 107 from moving further upward. At this time, the shelf 107 rotates around its axis towards the bed 1, rotating from a vertical position to a horizontal position, facilitating the placement of puncture items and providing convenience for the doctor's aseptic operation. Furthermore, when the shelf 107 is in a horizontal position, the bottom of the shelf 107 abuts against the top of the fixing rod 301, thus the fixing rod 301 also provides support. A handle 107b is also provided at the top of the shelf 107 for easy pulling out.
[0044] Based on the aforementioned auxiliary device for lateral-prone bone marrow aspiration, the device is used in two positions: lateral and prone. The patient assumes a lateral position, turning their body to one side, and the chest is fixed using the upper limb fixation mechanism 2. Specifically, the multi-joint rotating arm 201 is adjusted to an appropriate position and fixed using the clamping member 4 to ensure that the fixation plate 202 can stably support the patient's chest. The angle and position of the fixation plate 202 are adjusted according to the patient's body type, so that the concave portion 202a conforms to the patient's chest, and the upper limb is further fixed using the strap 202c. The fixing rods 301 of the lower limb fixation mechanism 3 are adjusted using the transverse groove 103 and the longitudinal groove 104 according to the length and position of the patient's legs. The fixing rod 301 is slid to a suitable position and secured by the locking member 302. Specifically, two fixing rods 301 are configured. One fixing rod 301 is positioned on the right side of the forward transverse slide groove 103, close to the inner side of the knee joint, and the other is located on the left side of the rear transverse slide groove 103, close to the inner side of the ankle joint. By rotating the rotating column 301a, the stud 301c is screwed into the locking block 301d, so that the locking block 301d is locked in the first through groove 302c, achieving a stable lock of the rotating column 301a and the entire fixing rod 301. A strap can also be used to fix the patient's knee and ankle joints to ensure that the patient does not move during the procedure. Finally, the placement plate 107 extends vertically upward from inside the baffle 102 and can be rotated to a horizontal position for placing the puncture instrument.
[0045] The patient lies prone with their face down and head placed in the ventilation hole 101 to maintain unobstructed breathing. Both upper limbs are secured using the upper limb fixation mechanism 2, similar to the lateral decubitus position, but the fixation plate 202 is adjusted to support the patient's back. Based on the length and position of the patient's legs, the fixing rods 301 of the lower limb fixation mechanism 3 are adjusted via the transverse and longitudinal grooves 103 and 104. The fixing rods 301 are slid to a suitable position and secured using the locking element 302. Specifically, two fixing rods 301 are symmetrically distributed within the same transverse groove 103, creating space between them to accommodate the patient's legs, effectively preventing lateral movement of the patient's legs during the puncture procedure. Straps can also be used to secure the patient's legs, ensuring the patient does not move during the procedure. Finally, the placement plate 107 extends vertically upward from the baffle 102 and can be rotated to a horizontal position for placing the puncture instruments.
[0046] In summary, this utility model's lateral-prone bone marrow aspiration auxiliary device achieves precise adjustment and stable fixation of the patient's position by integrating a bed, an upper limb fixation mechanism, and a lower limb fixation mechanism. The upper limb fixation mechanism uses a multi-joint rotating arm to flexibly adjust the position of the fixation plate, ensuring effective support for the patient's chest in the lateral position or back in the prone position. The lower limb fixation mechanism uses a combination of sliding fixation rods and locking elements to flexibly fix the patient's legs, such as fixing the knee and ankle joints in the lateral position and the lower leg in the prone position, ensuring stable patient position throughout the procedure and effectively preventing puncture failure and specimen degradation. Especially during prone puncture, it significantly reduces discomfort such as chest tightness and difficulty breathing. This utility model's lateral prone position bone marrow aspiration assist device enhances stability by fixing the sliding position of the upper limb fixation mechanism with clamping components; the flexible sphere set on the fixation plate improves patient comfort, and the straps on it further fix the patient's limb; the bed's ventilation hole design ensures smooth breathing for the patient; a shelf is slidably installed inside the baffle at the rear end of the bed, and the shelf can be pulled out and rotated to be mounted on top of the fixation rod, facilitating the placement of puncture items and providing convenience for the doctor's aseptic operation.
[0047] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
Claims
1. An auxiliary device for bone marrow aspiration in the lateral prone position, characterized in that, include: The bed frame includes ventilation holes provided on the bed frame and a baffle provided at the rear end of the bed frame. The bed frame has multiple transverse sliding grooves at certain intervals along its longitudinal direction near the rear end, as well as a longitudinal sliding groove that runs through the multiple transverse sliding grooves. The upper limb fixation mechanism is slidably disposed on both sides of the bed. The upper limb fixation mechanism includes a multi-joint rotating arm that is slidably disposed along the longitudinal direction of the bed, and a fixing plate disposed at one end of the multi-joint rotating arm that can rotate from vertical to horizontal and from horizontal to vertical, which is used to support and fix the patient's chest or back. The lower limb fixation mechanism includes at least two fixing rods slidably disposed in the transverse slide groove and the longitudinal slide groove for fixing the patient's legs, and a locking member disposed at the bottom of the bed for locking the fixing rods.
2. The auxiliary device for bone marrow aspiration in the lateral prone position according to claim 1, characterized in that, Square rods are respectively arranged on both sides of the bed along its longitudinal direction. The multi-joint rotating arm includes multiple connecting rods that are rotatably connected to each other. The end of the connecting rod at the first end has a square hole that matches the square rod. The end of the connecting rod at the last end is connected to the fixing plate.
3. The auxiliary device for bone marrow aspiration in the lateral prone position according to claim 2, characterized in that, The connection between the square rod and the connecting rod is provided with a clamping member for fixing the multi-joint rotating arm. The clamping member includes a clamping plate and a plurality of latches extending a certain length from the bottom of the clamping plate to form a clamping space for clamping the square rod and the connecting rod. The clamping plate is provided with a threaded hole for connecting to a screw, and the screw presses against one side of the connecting rod.
4. The auxiliary device for bone marrow aspiration in the lateral prone position according to claim 2, characterized in that, The two ends of the square rod are threaded with connecting blocks, which are located on the side of the bed.
5. An auxiliary device for bone marrow aspiration in the lateral prone position according to claim 1, characterized in that, The upper surface of the fixation plate has a recessed portion for abutting against the patient's chest or back, the recessed portion being provided with a plurality of flexible spheres and straps on its sides.
6. The auxiliary device for bone marrow aspiration in the lateral prone position according to claim 1, characterized in that, The fixed rod includes a rotating column, a connecting column, and a stud arranged in series. The bottom of the rotating column abuts against the bed. The connecting column is slidably disposed in the transverse slide groove or the longitudinal slide groove. A locking block is rotatably disposed on the stud, and the locking block is slidably embedded in the locking member.
7. An auxiliary device for bone marrow aspiration in the lateral prone position according to claim 6, characterized in that, The locking component includes a plurality of horizontal bars arranged at certain intervals along the longitudinal direction of the bed and a vertical bar that runs longitudinally through the plurality of horizontal bars. The horizontal bars cooperate with the transverse sliding groove, and the vertical bar cooperates with the longitudinal sliding groove. The interior of the horizontal bars and the vertical bar forms a first through groove for the locking block to slide, and the upper and lower ends of the horizontal bars and the vertical bar form a second through groove through which the stud passes.
8. An auxiliary device for bone marrow aspiration in the lateral prone position according to claim 6, characterized in that, The rotating column is also equipped with straps for fixing the patient's leg joints.
9. An auxiliary device for bone marrow aspiration in the lateral prone position according to claim 1, characterized in that, A shelf is slidably disposed inside the baffle, and the shelf can extend vertically upward from inside the baffle and can be rotated to a horizontal position.
10. An auxiliary device for bone marrow aspiration in the lateral prone position according to claim 1, characterized in that, A headrest for side-lying position is detachably mounted above the ventilation holes.