A renal biopsy sampling device

Abstract

The application relates to the technical field of medical devices, in particular to a kidney biopsy puncture sampling device, which comprises a puncture needle body, further comprises rubber wheels, two rubber wheels are arranged on the two sides of the puncture needle body, and the movement of the puncture needle body is controlled by the two rubber wheels; and a fixing piece is arranged on the outer side of the puncture needle body. When the kidney biopsy puncture sampling device is used, medical staff can press a driving handle to make the two rubber wheels synchronously and reversely rotate, so that the two rubber wheels control the puncture needle body to move downwards during rotation, and the puncture needle body enters the patient's body. When the puncture needle body enters the patient's body, the medical staff press a fixing plate to fix the position of the puncture needle body, and then a sampling needle is taken out to sample the patient's kidney. The position of the puncture needle after entering the patient's body is fixed, and shaking or angle movement is avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a kidney biopsy puncture sampling device. Background Technology

[0002] Because there are many types of kidney diseases, and their causes and pathogenesis are complex, the clinical manifestations of many kidney diseases are not entirely consistent with the histological changes of the kidneys. In order to clarify the etiology and pathology of the disease and further diagnose the specific disease of the patient, a kidney biopsy is required. However, in real life, we have found that when medical staff use the puncture needle, they need to hold the puncture needle with one hand and insert the sampling needle into the patient's kidney with the other hand. Then, the sampling needle is used to collect a sample from the kidney. However, in this method, after the puncture needle is inserted, the medical staff's other hand needs to hold the sampling needle, and the hand holding the puncture needle may shake or tremble, causing the puncture needle tip to deviate and thus damage the patient's kidney. Therefore, we propose a kidney biopsy puncture sampling device. Summary of the Invention

[0003] One of the technical problems this application aims to solve is: how to fix the angle and position of the puncture needle after it has entered the patient's body.

[0004] To address the aforementioned technical problems, this application provides a kidney biopsy puncture sampling device, including a puncture needle body and further comprising...

[0005] Two rubber wheels are provided, and the two rubber wheels are respectively located on both sides of the puncture needle body. The movement of the puncture needle body is controlled by the two rubber wheels.

[0006] A fixing element is provided on the outside of the puncture needle body, and the fixing element is used to control the adhesion between the puncture needle body and the patient's skin;

[0007] A power assembly is located on the outside of the puncture needle body. Medical personnel use the power assembly to provide power for the movement of the two rubber wheels, driving the two rubber wheels to rotate, and then controlling the puncture needle body to enter the patient's body through the two rubber wheels.

[0008] In some embodiments, the fixing member includes a fixing box disposed on the outside of the puncture needle body, two fixing rods are rotatably disposed inside the fixing box, and two rubber wheels are rotatably disposed inside the fixing box via corresponding fixing rods. A fixing sleeve is disposed at the bottom of the fixing sleeve, and a fixing plate is disposed at the bottom of the fixing sleeve. The puncture needle body passes through and is slidably disposed at the axis of the fixing box, fixing sleeve and fixing plate.

[0009] In some embodiments, the power assembly includes a drive member disposed on the top of the fixed box, which provides power for the rotation of the two rubber wheels; a transmission member disposed within the fixed box, which provides power for the rotation of the two rubber wheels; an auxiliary member disposed within the fixed box, which assists the rotation of the two rubber wheels; a directional control member disposed within the fixed box, which controls the rotation direction of the two rubber wheels; a reversing member disposed within the fixed box, which changes the longitudinal force generated by the drive member; and a synchronizing member disposed within the fixed box, which controls the synchronous reverse movement of the two rubber wheels.

[0010] In some embodiments, the driving component includes a driving block disposed on the top of the fixed box, a driving rod slidably disposed within the driving block, a driving plate disposed at the bottom of the driving rod and slidably disposed within the driving block, a driving handle at the top of the driving rod, a driving spring disposed at the bottom of the driving plate, and one end of the driving spring away from the driving plate disposed on the top of the fixed box.

[0011] In some embodiments, the transmission component includes a transmission rod disposed at the bottom of the drive plate, and the transmission rod is slidably disposed within the fixed box. The end of the transmission rod away from the drive plate is rotatably mounted with a transmission frame via a rotating shaft.

[0012] In some embodiments, the auxiliary component includes an auxiliary ring rotatably disposed within the fixed box, an auxiliary plate being disposed at one end of the auxiliary ring away from the fixed box, and the end of the transmission frame away from the transmission rod being disposed on one side of the auxiliary plate.

[0013] In some embodiments, the directional control component includes two directional control rods rotatably disposed within the fixed box. One of the two directional control rods, which is closer to the auxiliary plate, has a ratchet frame on its outer side. A ratchet shaft is rotatably disposed within the ratchet frame. A directional control ratchet is disposed on the outer side of the ratchet shaft. A return torsion spring is disposed at one end of the ratchet shaft. A plurality of ratchet grooves are formed in the auxiliary ring to cooperate with the directional control ratchet.

[0014] In some embodiments, the steering member includes steering gears respectively disposed on the outer sides of the two steering levers, a steering belt disposed on the outer sides of the two steering gears, and a steering rack disposed within the steering belt that meshes with the two steering gears.

[0015] In some embodiments, the synchronizing element includes synchronizing gears respectively disposed on the two fixed rods, and synchronizing racks that mesh with the two synchronizing gears are disposed on both sides of the deflecting belt.

[0016] In some embodiments, a useful placement groove is provided on the fixing plate, and a plurality of through holes are provided on the bottom of the fixing plate, and the placement groove communicates with the plurality of through holes.

[0017] The present invention has at least the following beneficial effects:

[0018] During use, medical staff can press the drive handle to make the two rubber wheels rotate synchronously in opposite directions. As the two rubber wheels rotate, they control the downward movement of the puncture needle body, allowing the puncture needle body to enter the patient's body. After the puncture needle body enters the patient's body, the medical staff can press the fixing plate to fix the position of the puncture needle body, and then remove the sampling needle to take a sample from the patient's kidney. This method ensures that the position of the puncture needle is fixed after entering the patient's body, preventing shaking or angular movement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the fastener portion of the present invention;

[0021] Figure 3 This is a schematic diagram of the fixing rod structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the power component structure of the present invention;

[0023] Figure 5 This is an exploded view of the drive component structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the control component structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the reset torsion spring structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the reversing component structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the synchronization component structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0029] In the diagram: 1-Puncture needle body; 2-Rubber wheel; 3-Fixing component; 31-Fixing box; 32-Fixing rod; 33-Fixing sleeve; 34-Fixing plate; 4-Power assembly; 5-Drive component; 51-Drive block; 52-Drive rod; 53-Drive plate; 54-Drive handle; 55-Drive spring; 6-Transmission component; 61-Transmission rod; 62-Transmission frame; 7-Auxiliary component; 71-Auxiliary ring; 72-Auxiliary plate; 8-Directional control component; 81-Directional control rod; 82-Ratchet frame; 83-Ratchet shaft; 84-Directional control ratchet; 85-Reset torsion spring; 86-Ratchet groove; 9-Directional changer component; 91-Directional changer gear; 92-Directional changer belt; 93-Directional changer rack; 10-Synchronizer component; 101-Synchronizer gear; 102-Synchronizer rack; 11-Placement groove; 12-Through hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] Please see Figure 1-9 The present invention provides a technical solution: a kidney biopsy puncture sampling device, including a puncture needle body 1, and further including...

[0033] There are two rubber wheels 2, and the two rubber wheels 2 are respectively located on both sides of the puncture needle body 1. The movement of the puncture needle body 1 is controlled by the two rubber wheels 2.

[0034] Fixing element 3 is set on the outside of the puncture needle body 1, and the fixing element 3 is used to control the fit between the puncture needle body 1 and the patient's skin;

[0035] The power assembly 4 is located on the outside of the puncture needle body 1. Medical staff use the power assembly 4 to provide power for the movement of the two rubber wheels 2, drive the two rubber wheels 2 to rotate, and then control the puncture needle body to enter the patient's body through the two rubber wheels 2.

[0036] The fixing component 3 includes a fixing box 31 disposed on the outside of the puncture needle body 1. Two fixing rods 32 are rotatably disposed inside the fixing box 31. Two rubber wheels 2 are rotatably disposed inside the fixing box 31 via corresponding fixing rods 32. A fixing sleeve 33 is fixedly disposed at the bottom. A fixing plate 34 is disposed at the bottom of the fixing sleeve 33. The puncture needle body 1 passes through and slides at the axis of the fixing box 31, the fixing sleeve 33 and the fixing plate 34. The fixing plate 34 is attached to the patient's skin and the axis of the fixing plate 34 is located at the entry point of the puncture needle body 1. Then the puncture needle body 1 is inserted into the fixing box 31 and continues downward, so that it passes through the axis of the fixing sleeve 33 and the fixing plate 34. Its function is to fix the position and angle of the puncture needle body 1.

[0037] The power assembly 4 includes a drive component 5 mounted on the top of the fixed box 31, which provides power for the rotation of the two rubber wheels 2. A transmission component 6 is installed inside the fixed box 31, which also provides power for the rotation of the two rubber wheels 2. An auxiliary component 7 is installed inside the fixed box 31 to assist the rotation of the two rubber wheels 2. A direction control component 8 is installed inside the fixed box 31 to control the rotation direction of the two rubber wheels 2. A direction changer 9 is installed inside the fixed box 31 to change the longitudinal force generated by the drive component 5. A synchronizing component 10 is installed inside the fixed box 31 to control the synchronous reverse movement of the two rubber wheels 2.

[0038] The driving component 5 includes a driving block 51 disposed on the top of the fixed box 31. A driving rod 52 is slidably disposed inside the driving block 51. A driving plate 53 is disposed at the bottom of the driving rod 52 and is slidably disposed inside the driving block 51. A driving handle 54 is disposed at the top of the driving rod 52. A driving spring 55 is disposed at the bottom of the driving plate 53 and the end of the driving spring 55 away from the driving plate 53 is disposed at the top of the fixed box 31. When it is necessary to control the puncture needle body 1 to enter the patient's body, by pressing the driving handle 54, the driving handle 54 will drive the driving rod 52 downward together. When the driving rod 52 is downward, the driving plate 53 disposed at the bottom of the driving rod 52 will slide inside the driving block 51. The driving spring 55 disposed inside the driving block 51 can control the driving plate 53 and the driving handle 54 to return to their original positions after the medical staff releases the pressure on the driving handle 54. Its function is that by the medical staff pressing downward, the two rubber wheels 2 rotate, thereby allowing the puncture needle body 1 to enter the patient's body.

[0039] The transmission component 6 includes a transmission rod 61 disposed at the bottom of the drive plate 53, and the transmission rod 61 is slidably disposed in the fixed box 31. The end of the transmission rod 61 away from the drive plate 53 is rotatably disposed with a transmission frame 62 via a rotating shaft. When the drive plate 53 moves downward, the drive plate 53 pushes the transmission rod 61 at its bottom. When the transmission rod 61 moves downward, the transmission rod 61 controls the transmission frame 62 to move downward by rotating. Its function is to control the rotation of the auxiliary plate 72 through the transmission rod 61 and the transmission frame 62.

[0040] The auxiliary component 7 includes an auxiliary ring 71 rotatably disposed within the fixed box 31. An auxiliary plate 72 is disposed at the end of the auxiliary ring 71 away from the fixed box 31, and the end of the transmission frame 62 away from the transmission rod 61 is disposed on one side of the auxiliary plate 72. When the transmission frame 62 moves downward, since one side of it is connected to the auxiliary plate 72, and the auxiliary plate 72 is rotatably disposed within the fixed box 31 through the auxiliary ring 71, the transmission frame 62 drives the auxiliary plate 72 to rotate under the downward action of the transmission rod 61. Its function is to enable the control rod 81 to rotate through the rotation of the auxiliary plate 72.

[0041] The directional control component 8 includes two directional control rods 81 rotatably mounted within the fixed housing 31. One of the directional control rods 81, closer to the auxiliary plate 72, has a ratchet frame 82 on its outer side. A ratchet shaft 83 is rotatably mounted within the ratchet frame 82. Directional control ratchet teeth 84 are located on the outer side of the ratchet shaft 83. A return torsion spring 85 is located at one end of the ratchet shaft 83. The auxiliary ring 71 has multiple ratchet grooves 86 that cooperate with the directional control ratchet teeth 84. When the auxiliary plate 72 rotates, it drives the multiple ratchet grooves 86 on its inner side to rotate together. When in motion, multiple ratchet grooves 86 compress the control ratchet 84, causing the control ratchet 84 to rotate together with the auxiliary plate 72 under the action of the multiple ratchet grooves 86. The reset torsion spring 85 set at one end of the ratchet groove 86 can control the control ratchet 84 to reset after being rotated when the auxiliary plate 72 drives the multiple ratchet grooves 86 to rotate in the opposite direction. Its function is to prevent the control rod 81 from rotating with the auxiliary plate 72 again when the auxiliary plate 72 rotates in the reverse direction, so as to realize the unidirectional rotation of the control rod 81.

[0042] The reversing component 9 includes reversing gears 91 respectively disposed on the outer sides of the two control rods 81. A reversing belt 92 is disposed on the outer sides of the two reversing gears 91. A reversing rack 93 is disposed inside the reversing belt 92 and meshes with the two reversing gears 91. When the control rod 81 rotates, the reversing gears 91 disposed on the control rod 81 and adjacent to the auxiliary plate 72 will rotate together with the control rod 81, so that the reversing gears 91 drive the reversing belt 92 to move together through the reversing rack 93. When the reversing belt 92 moves, the two reversing gears 91 meshing with the reversing rack 93 will rotate together. Its function is to change the direction of the force brought by the control rod 81.

[0043] The synchronizing element 10 includes synchronizing gears 101 respectively mounted on two fixed rods 32. Synchronizing racks 102 meshing with the two synchronizing gears 101 are provided on both sides of the reversing belt 92. When the reversing belt 92 moves, the synchronizing racks 102 located on the outer side of the reversing belt 92 move along with the reversing belt 92, thereby causing the reversing belt 92 to drive the corresponding two synchronizing gears 101 to rotate synchronously in opposite directions via the synchronizing racks 102 on both sides. When the two synchronizing gears 101 rotate synchronously in opposite directions, the fixed rods 32 located at the axis of the two synchronizing gears 101 rotate along with the synchronizing gears 101, thereby causing the two fixed rods 32 to drive the corresponding rubber wheels 2 to rotate. Its function is to control the synchronous opposite rotation of the two rubber wheels 2 through the synchronizing gears 101, thereby enabling the two rubber wheels 2 to control the insertion of the puncture needle body 1 into the patient's body.

[0044] In use, when medical personnel need to perform a kidney biopsy, the fixation plate 34 is placed against the patient's skin, with the axis of the fixation plate 34 positioned at the entry point of the puncture needle body 1. The puncture needle body 1 is then inserted into the fixation box 31 and continues downwards, passing the fixation sleeve 33 and the axis of the fixation plate 34, positioning the puncture needle body 1 on opposite sides of the two rubber wheels 2. This causes the two rubber wheels 2 to compress the puncture needle body 1. When it is necessary to control the insertion of the puncture needle body 1 into the patient's body, the drive handle 54 is pressed. As the drive handle 54 moves downwards, it drives the drive rod 52 downwards as well. When the drive rod 52 moves downwards, the drive plate 53 at the bottom of the drive rod 52 slides onto the drive block 51. Inside the drive block 51, the drive spring 55 can control the drive plate 53 and the drive handle 54 to reset after the medical staff releases the pressure on the drive handle 54. When the drive plate 53 moves downward, it pushes the transmission rod 61 at its bottom. When the transmission rod 61 moves downward, it controls the transmission frame 62 to move downward by rotating. When the transmission frame 62 moves downward, since one side of it is connected to the auxiliary plate 72 and the auxiliary plate 72 is rotatably set in the fixed box 31 through the auxiliary ring 71, the transmission frame 62 drives the auxiliary plate 72 to rotate under the action of the transmission rod 61. When the auxiliary plate 72 rotates, it will drive the multiple ratchet grooves 86 opened on its inner side to rotate together. When the multiple ratchet grooves 86 rotate with the auxiliary plate 72, they compress the control ratchet 84, causing it to rotate along with the auxiliary plate 72 under the action of the ratchet grooves 86. The reset torsion spring 85, located at one end of the ratchet groove 86, can reset the control ratchet 84 after it has been rotated when the auxiliary plate 72 drives the multiple ratchet grooves 86 to rotate in the opposite direction. When the control rod 81 rotates, the reversing gear 91, located on the control rod 81 and adjacent to the auxiliary plate 72, rotates along with it. This causes the reversing gear 91 to drive the reversing belt 92 through the reversing rack 93. When the reversing belt 92 moves, the belt meshing with the reversing rack 93... The two reversing gears 91 rotate together. When the reversing belt 92 moves, the synchronous rack 102 located on the outside of the reversing belt 92 moves with the reversing belt 92. This causes the reversing belt 92 to drive the corresponding two synchronous gears 101 to rotate synchronously in opposite directions through the synchronous racks 102 on both sides. When the two synchronous gears 101 rotate synchronously in opposite directions, the fixed rod 32 located at the axis of the two synchronous gears 101 will rotate with the synchronous gears 101. This causes the two fixed rods 32 to drive the corresponding rubber wheel 2 to rotate. When the two rubber wheels 2 rotate synchronously in opposite directions, the puncture needle body 1, which is squeezed on the opposite side by the two rubber wheels 2, will move downward, allowing the puncture needle body 1 to enter the patient's body.

[0045] Example 2

[0046] Please see Figure 10 The present invention provides a technical solution:

[0047] Unlike Embodiment 1, the fixing plate 34 has a useful placement groove 11 and multiple through holes 12 at the bottom of the fixing plate 34. The placement groove 11 communicates with the multiple through holes 12. Before the puncture needle body 1 enters the patient's body, medical cotton soaked in iodine can be placed in the placement groove 11. When the puncture needle body 1 enters the patient's body under the control of the two rubber wheels 2, the medical cotton in the placement groove 11 will slowly flow the iodine inside through the through holes 12 to the patient's skin.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kidney biopsy sampling device, comprising a puncture needle body (1), characterized in that: It also includes Two rubber wheels (2) are provided, and the two rubber wheels (2) are respectively provided on both sides of the puncture needle body (1). The movement of the puncture needle body (1) is controlled by the two rubber wheels (2). Fixing element (3) is provided on the outside of the puncture needle body (1) to control the adhesion between the puncture needle body (1) and the patient's skin; The power assembly (4) is located on the outside of the puncture needle body (1). After the medical staff holds the fixation piece (3), they can directly press the power assembly (4) to provide power for the movement of the two rubber wheels (2), drive the two rubber wheels (2) to rotate, and then directly drive the puncture needle body (1) into the patient's body.

2. The kidney biopsy sampling device according to claim 1, characterized in that: The fixing component (3) includes a fixing box (31) disposed on the outside of the puncture needle body (1). Two fixing rods (32) are rotatably disposed inside the fixing box (31). Two rubber wheels (2) are rotatably disposed inside the fixing box (31) via corresponding fixing rods (32). A fixing sleeve (33) is disposed at the bottom of the fixing component. A fixing plate (34) is disposed at the bottom of the fixing sleeve (33). The puncture needle body (1) passes through and slides at the axis of the fixing box (31), the fixing sleeve (33) and the fixing plate (34).

3. The kidney biopsy sampling device according to claim 2, characterized in that: The power assembly (4) includes a drive member (5) disposed on the top of the fixed box (31), which provides power for the rotation of the two rubber wheels (2). A transmission member (6) is disposed inside the fixed box (31), which provides power for the rotation of the two rubber wheels (2). An auxiliary member (7) is disposed inside the fixed box (31), which assists the rotation of the two rubber wheels (2). A directional control member (8) is disposed inside the fixed box (31), which controls the rotation direction of the two rubber wheels (2). A reversing member (9) is disposed inside the fixed box (31), which changes the longitudinal force generated by the drive member (5). A synchronizing member (10) is disposed inside the fixed box (31), which controls the synchronous reverse movement of the two rubber wheels (2).

4. The kidney biopsy sampling device according to claim 3, characterized in that: The driving component (5) includes a driving block (51) disposed on the top of the fixed box (31), a driving rod (52) slidably disposed inside the driving block (51), a driving plate (53) disposed at the bottom of the driving rod (52), and the driving plate (53) slidably disposed inside the driving block (51), a driving handle (54) at the top of the driving rod (52), a driving spring (55) disposed at the bottom of the driving plate (53), and one end of the driving spring (55) away from the driving plate (53) disposed on the top of the fixed box (31).

5. The kidney biopsy sampling device according to claim 4, characterized in that: The transmission component (6) includes a transmission rod (61) disposed at the bottom of the drive plate (53), and the transmission rod (61) is slidably disposed in the fixed box (31). The end of the transmission rod (61) away from the drive plate (53) is rotatably disposed with a transmission frame (62) via a rotating shaft.

6. The kidney biopsy sampling device according to claim 5, characterized in that: The auxiliary component (7) includes an auxiliary ring (71) rotatably disposed in the fixed box (31), an auxiliary plate (72) is disposed at one end of the auxiliary ring (71) away from the fixed box (31), and the end of the transmission frame (62) away from the transmission rod (61) is disposed on one side of the auxiliary plate (72).

7. The kidney biopsy sampling device according to claim 6, characterized in that: The directional control component (8) includes two directional control rods (81) rotatably disposed within the fixed box (31). One of the two directional control rods (81) is closer to the auxiliary plate (72) and has a ratchet frame (82) on its outer side. A ratchet shaft (83) is rotatably disposed within the ratchet frame (82). A directional control ratchet (84) is disposed on the outer side of the ratchet shaft (83). A reset torsion spring (85) is disposed at one end of the ratchet shaft (83). A plurality of ratchet grooves (86) are opened in the auxiliary ring (71) to cooperate with the directional control ratchet (84).

8. The kidney biopsy sampling device according to claim 7, characterized in that: The reversing component (9) includes reversing gears (91) respectively disposed on the outside of the two reversing rods (81), a reversing belt (92) is disposed on the outside of the two reversing gears (91), and a reversing rack (93) is disposed in the reversing belt (92) to mesh with the two reversing gears (91).

9. The kidney biopsy sampling device according to claim 8, characterized in that: The synchronizing element (10) includes synchronizing gears (101) respectively disposed on the two fixed rods (32), and synchronizing racks (102) that mesh with the two synchronizing gears (101) are disposed on both sides of the reversing belt (92).

10. The kidney biopsy sampling device according to claim 9, characterized in that: The fixing plate (34) has a useful placement groove (11) and a plurality of through holes (12) are provided at the bottom of the fixing plate (34), and the placement groove (11) communicates with the plurality of through holes (12).

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