A kidney biopsy puncture sampling device

Abstract

The present invention discloses a kidney biopsy puncture sampling device, comprising: a puncture sampling needle, a pre-guide component, a functional card seat, a fixed card seat and a positioning patch, the fixed card seat is fixed to the surface of the positioning patch, and the surface of the positioning patch is provided with a puncture window located at the center point, the pre-guide component is rotatably mounted on the surface of the functional card seat, and the surface of the functional card seat is provided with a card edge and an elastic locking ear for engaging with the fixed card seat. In the present invention, by setting a new in vitro guiding structure, the pre-guide component is used to pre-determine the position of the fixed card seat and the positioning patch and pre-adjust the direction of the positioning tube under the cooperation of CT guidance, an acoustic guide or a magnetic navigation system, so as to accurately locate the puncture point and the puncture path, and the in vitro guided positioning reduces secondary damage and discomfort to the patient, making the puncture operation more stable and safe, helping to standardize the operation process, reducing the differences in operating skills and experience between different doctors, and improving the consistency and quality of the operation.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a kidney biopsy puncture sampling device. Background Art

[0002] During a renal biopsy, CT guidance can help doctors determine the puncture site and plan the puncture path to ensure the accuracy and safety of the puncture. The following is a general puncture path planning process: First, the doctor will perform a CT scan to obtain detailed image information of the kidney. CT scans can clearly show the location, size, shape of the kidney, and the distribution of surrounding blood vessels and tissues. Based on the CT image, the doctor can determine the most suitable site for puncture. The site usually selected is the outer capsule of the kidney, avoiding major blood vessels and collecting systems to reduce the risk of puncture. The doctor will plan the puncture path based on the guidance of the CT image. The puncture path should try to avoid large blood vessels and important tissues, while ensuring that the puncture needle can accurately enter the kidney tissue and obtain samples. Mark the puncture point on the CT image for the doctor to locate. These markings are usually made on the skin to help determine the insertion position and direction of the puncture needle.

[0003] In this operation, the doctor needs to select the puncture point based on experience, and select the appropriate puncture direction according to the guidance of the CT image so that the sampling point and the puncture point are located on the straight line of the puncture path. In this process, the ultrasound guide or magnetic navigation system can be used to preset the guide tube to determine the puncture path, so that the puncture sampling needle can accurately reach the sampling position. However, the use of the guide tube and the puncture sampling needle in this operation will cause secondary injuries to the patient. If the guide tube is not used, it is necessary to rely on the ultrasound guide or magnetic navigation system and the doctor's operating experience to perform precise operations during the puncture process, which is difficult. Traditional puncture sampling surgery requires high operating skills and experience of doctors, especially when precise positioning is required, the operation is more difficult. Doctors need to accurately judge the puncture point and puncture path, and are easily affected by human factors during the operation, resulting in operation failure or accidental injury. Traditional puncture sampling surgery usually requires a long operation time, especially in complex cases or when multiple attempts are required, which will increase the time and risk of the operation. There is a lack of standardized operating procedures and guidance. The operating skills and experience of different doctors vary greatly, which may affect the effect and quality of the operation.

[0004] In view of this, research and improvement are carried out on the existing problems, and a kidney biopsy puncture sampling device is provided to solve the current problems. The purpose is to solve the problems and improve the practical value through this technology. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted by the present invention is: a kidney biopsy puncture sampling device, comprising: a puncture sampling needle, a pre-guide component, a functional card seat, a fixed card seat and a positioning patch, the fixed card seat is fixed to the surface of the positioning patch, and the surface of the positioning patch is provided with a puncture window located at the center point, the pre-guide component is rotatably mounted on the surface of the functional card seat, the surface of the functional card seat is provided with a card edge and an elastic locking ear for engaging with the fixed card seat, and the top surface of the functional card seat is provided with a sleeve hole for connecting the puncture detection component and the pre-guide component;

[0007] The pre-guide assembly includes a ball sleeve seat, a swing ball sleeve, a moving ball head, a positioning tube and a telescopic limit sleeve and a sampling seat fixed to the top of the telescopic limit sleeve. The bottom end of the ball sleeve seat is rotatably sleeved on the surface of the functional seat, the swing ball sleeve is rotatably sleeved on the inner side of the ball sleeve seat, and two first locking members arranged symmetrically are provided at both ends of the ball sleeve seat. The moving ball head is rotatably sleeved on the surface of the swing ball sleeve, and two first deflection grooves and a second deflection groove arranged in vertical directions are respectively provided on the upper and lower sides of the swing ball sleeve. The positioning tube is fixed to the top surface of the moving ball head and slidably sleeved on the inner side of the first deflection groove. The telescopic limit sleeve is slidably sleeved on the surface of the positioning tube, and a second locking member is provided on the surface of the telescopic limit sleeve.

[0008] In a preferred example, the present invention can be further configured as follows: the top of the sampling cartridge is provided with a slot hole that is interlocked with the surface of the puncture sampling needle, and the positioning tube, telescopic limit sleeve and the surface of the sampling cartridge are penetrated for the needle body of the puncture sampling needle to pass through.

[0009] In a preferred example, the present invention can be further configured as follows: the moving ball head is a hollow spherical structure, and a cross groove is provided on the bottom surface of the moving ball head, and a through hole located on the axis line of the sleeve hole is opened on the surface of the ball sleeve seat.

[0010] In a preferred example, the present invention can be further configured as follows: the pre-guide component and the functional socket are made of one of medical-grade polymers and ceramic materials, the outer periphery of the swing ball sleeve is provided with anti-slip convex grooves, and the moving ball head is interference-fitted on the inner side of the swing ball sleeve.

[0011] In a preferred example, the present invention can be further configured as follows: the second locking member and the first locking member have the same structure and both include a locking tongue and a crank pressure rod, fixed shaft ears rotatably connected to the crank pressure rod are provided on both sides of the ball sleeve seat, a stop bead is provided on the surface of the locking tongue, the outer circumference center of the crank pressure rod deviates from the deflection axis of the crank pressure rod and abuts against the surface of the crank pressure rod, and positioning holes are provided on both sides of the swing ball sleeve and the surface of the positioning tube that are compatible with the stop bead on the surface of the locking tongue.

[0012] In a preferred example, the present invention can be further configured as follows: the surface of the fixed card seat is provided with a U-shaped sleeve groove adapted to the card edge, and the sleeve groove is arranged parallel to the surface direction of the functional card seat, and card grooves are provided on both sides of the sleeve groove, and the elastic locking ears on both sides of the card edge correspond to the position of the card groove.

[0013] In a preferred example, the present invention can be further configured as follows: the positioning patch is a component made of polyethylene or polyvinyl chloride (PVC) material, and the positioning patch is a transparent adhesive patch structure.

[0014] The beneficial effects achieved by the present invention are:

[0015] 1. In the present invention, a new extracorporeal guiding structure is provided, and a pre-guiding component is used to pre-determine the card seat and the positioning application position and pre-adjust the direction of the positioning tube under the cooperation of CT guidance, an acoustic guide or a magnetic navigation system, so as to accurately locate the puncture point and the puncture path. Extracorporeal guided positioning reduces secondary damage and discomfort to the patient, makes the puncture operation smoother and safer, helps standardize the operation process, reduces the differences in operating skills and experience between different doctors, and improves the consistency and quality of the operation.

[0016] 2. In the present invention, after the puncture point is pre-selected and positioned using a fixed card holder and a positioning patch, different operation procedures can be achieved by connecting with a functional card holder of a pre-guiding component or a navigation system. The split detachable structure is easy to install and position, and is designed without metal materials to avoid interference with the working state of the CT machine, making the operation easier and more controllable.

[0017] 3. In the present invention, by adjusting the deflection of the swing ball sleeve and the moving ball head in different directions, it can ensure that the positioning tube accurately points to the puncture point and the puncture path is predetermined, reducing the uncertainty and risk during the operation, making the puncture operation more standardized and controllable, and by accurately controlling the movement of the guide device and setting the second locking member and the first locking member for locking, it can ensure that the puncture needle accurately reaches the target position, thereby improving the success rate and efficacy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the decomposed structure of a pre-guiding component according to an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure of a pre-guiding component according to an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a ball sleeve seat and a swing ball sleeve structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a moving ball head and a positioning tube according to an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the structure of a functional card holder and a fixed card holder according to an embodiment of the present invention;

[0024] Figure 7 The figure is a schematic diagram of a fixed card holder and a positioning application structure according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] 100. Puncture sampling needle;

[0027] 200, pre-guide assembly; 210, ball sleeve seat; 220, swing ball sleeve; 230, moving ball head; 240, positioning tube; 250, telescopic limit sleeve; 260, sampling card seat; 270, first locking member; 211, fixed axis ear; 221, first deflection groove; 222, second deflection groove; 223, positioning hole; 231, cross groove; 251, second locking member; 271, locking tongue; 272, crank pressure rod;

[0028] 300, functional card holder; 310, card edge; 320, sleeve hole; 330, elastic lock ear;

[0029] 400, fixed card holder; 410, card slot; 500, positioning patch; 510, puncture window. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0031] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0032] A kidney biopsy puncture sampling device provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0033] Combination Figure 1-7The present invention provides a kidney biopsy puncture sampling device, comprising: a puncture sampling needle 100, a pre-guide assembly 200, a functional card seat 300, a fixed card seat 400 and a positioning patch 500, wherein the fixed card seat 400 is fixed to the surface of the positioning patch 500, and a puncture window 510 located at the center point is provided on the surface of the positioning patch 500, the pre-guide assembly 200 is rotatably mounted on the surface of the functional card seat 300, and a clamping edge 310 and an elastic locking ear 330 for engaging with the fixed card seat 400 are provided on the surface of the functional card seat 300, and a sleeve hole 320 is provided on the top surface of the functional card seat 300 for connecting the puncture detection assembly and the pre-guide assembly 200;

[0034] The pre-guide assembly 200 includes a ball sleeve seat 210, a swing ball sleeve 220, a moving ball head 230, a positioning tube 240 and a telescopic limit sleeve 250, and a sampling cartridge 260 fixed to the top of the telescopic limit sleeve 250. The bottom end of the ball sleeve seat 210 is rotatably sleeved on the surface of the functional cartridge 300, the swing ball sleeve 220 is rotatably sleeved on the inner side of the ball sleeve seat 210, and two first locking members 270 arranged symmetrically are provided at both ends of the ball sleeve seat 210. The moving ball head 230 is rotatably sleeved on the surface of the swing ball sleeve 220, and two first deflection grooves 221 and second deflection grooves 222 arranged in vertical directions are respectively provided on the upper and lower sides of the swing ball sleeve 220. The positioning tube 240 is fixed to the top surface of the moving ball head 230 and slidably sleeved on the inner side of the first deflection groove 221. The telescopic limit sleeve 250 is slidably sleeved on the surface of the positioning tube 240, and a second locking member 251 is provided on the surface of the telescopic limit sleeve 250.

[0035] In this embodiment, the top of the sampling holder 260 is provided with a slot hole that is interlocked with the surface of the puncture sampling needle 100, and the positioning tube 240, the telescopic limit sleeve 250 and the surface of the sampling holder 260 are penetrated for the needle body of the puncture sampling needle 100 to pass through.

[0036] Specifically, the puncture sampling needle 100 is fixed by engaging and connecting the sampling holder 260 with the puncture sampling needle 100 .

[0037] In this embodiment, the moving ball head 230 is a hollow spherical structure, and a cross groove 231 is provided on the bottom surface of the moving ball head 230 . A through hole located on the axis of the sleeve hole 320 is opened on the surface of the ball sleeve seat 210 .

[0038] Specifically, the needle body of the puncture sampling needle 100 can accurately penetrate into the human skin through the sampling cartridge 260, the positioning tube 240, the moving ball head 230, the swing ball sleeve 220 and the ball sleeve seat 210 in sequence, and the first deflection groove 221, the second deflection groove 222 and the cross groove 231 arranged in a cross shape can all be guaranteed.

[0039] In this embodiment, the pre-guide assembly 200 and the functional holder 300 are made of medical grade polymer or ceramic material. The outer periphery of the swing ball sleeve 220 is provided with anti-slip convex grooves, and the moving ball head 230 is interference fit on the inner side of the swing ball sleeve 220 .

[0040] In this embodiment, the second locking member 251 and the first locking member 270 have the same structure and both include a locking tongue 271 and a crank pressure rod 272. Fixed shaft ears 211 rotatably connected to the crank pressure rod 272 are provided on both sides of the ball sleeve seat 210. A stop bead is provided on the surface of the locking tongue 271. The outer circumferential center of the crank pressure rod 272 deviates from the deflection axis of the crank pressure rod 272 and abuts against the surface of the crank pressure rod 272. Positioning holes 223 that match the stop beads on the surface of the locking tongue 271 are provided on both sides of the swing ball sleeve 220 and the surface of the positioning tube 240.

[0041] Specifically, when the crank pressure rod 272 deflects, it abuts against the crank pressure rod 272 to make it elastically bend and engage with the positioning holes 223 on the surfaces of the swing ball sleeve 220 and the positioning tube 240, thereby achieving positioning and locking of the telescopic limit sleeve 250 and the swing ball sleeve 220 and improving their stability.

[0042] In this embodiment, a U-shaped sleeve groove matching the card edge 310 is provided on the surface of the fixed card seat 400, and the sleeve groove is arranged parallel to the surface direction of the functional card seat 300. Card slots 410 are provided on both sides of the sleeve groove, and elastic locking ears 330 on both sides of the card edge 310 correspond to the position of the card slot 410.

[0043] Specifically, the functional card holder 300 equipped with different instruments is connected to the surface of the fixed card holder 400 to achieve the connection of different functional components in different operation stages, so as to standardize the sampling operation process.

[0044] In this embodiment, the positioning patch 500 is a component made of polyethylene or polyvinyl chloride (PVC), and the positioning patch 500 is a transparent adhesive patch structure.

[0045] Specifically, a transparent dressing structure is used for positioning, which can flexibly fit according to the breathing rhythm of the human body and maintain a fixing effect.

[0046] The working principle and use process of the present invention:

[0047] When performing a kidney biopsy puncture sampling procedure, the operating physician determines the kidney biopsy puncture point according to detection methods such as CT detection and ultrasonic detection, and after marking, sticks it to the human skin surface through the fixed card holder 400 and the positioning patch 500 to locate the puncture point. The ultrasonic detection head can be connected through the functional card holder 300 and connected with the fixed card holder 400 to re-detect the puncture point to avoid damage to important tissues and blood vessels during the puncture process;

[0048] The pre-guide assembly 200 is engaged with the functional card holder 300 on the surface of the fixed card holder 400. Under the cooperation of CT guidance, acoustic guide or magnetic navigation system, the swing ball sleeve 220 on the inner side of the deflection ball sleeve seat 210 and the moving ball head 230 on the inner side of the swing ball sleeve 220 are used to change the direction of the positioning tube 240 and determine the puncture direction. The positioning tube 240 is directed to the puncture window 510 and the lesion area. The telescopic limit sleeve 250 is adjusted and extended according to the depth of the lesion location and the length of the puncture sampling needle 100. Finally, the deflection locking of the swing ball sleeve 220 and the lifting locking of the telescopic limit sleeve 250 are realized by the second locking member 251 and the first locking member 270, so as to keep the accurate orientation of the positioning tube 240 and insert the puncture sampling needle 100 into the positioning tube 240 for puncture sampling operation.

[0049] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A kidney biopsy puncture sampling device, characterized in that: include: A puncture sampling needle (100), a pre-guide component (200), a functional card seat (300), a fixed card seat (400) and a positioning patch (500), wherein the fixed card seat (400) is fixed to the surface of the positioning patch (500), and the surface of the positioning patch (500) is provided with a puncture window (510) located at a central point, the pre-guide component (200) is rotatably mounted on the surface of the functional card seat (300), the surface of the functional card seat (300) is provided with a clamping edge (310) and an elastic locking ear (330) for engaging with the fixed card seat (400), and the top surface of the functional card seat (300) is provided with a sleeve hole (320) for connecting the puncture detection component and the pre-guide component (200); The pre-guide assembly (200) comprises a ball sleeve seat (210), a swing ball sleeve (220), a moving ball head (230), a positioning tube (240), a telescopic limit sleeve (250), and a sampling seat (260) fixed to the top of the telescopic limit sleeve (250); the bottom end of the ball sleeve seat (210) is rotatably sleeved on the surface of the functional seat (300); the swing ball sleeve (220) is rotatably sleeved on the inner side of the ball sleeve seat (210); and two first locking members (270) arranged symmetrically are provided at both ends of the ball sleeve seat (210). The moving ball head (230) is rotatably sleeved on the surface of the swing ball sleeve (220); the upper and lower sides of the swing ball sleeve (220) are respectively provided with a first deflection groove (221) and a second deflection groove (222) arranged in a vertical direction; the positioning tube (240) is fixed to the top surface of the moving ball head (230) and slidably sleeved on the inner side of the first deflection groove (221); the telescopic limiting sleeve (250) is slidably sleeved on the surface of the positioning tube (240); and a second locking member (251) is provided on the surface of the telescopic limiting sleeve (250); The top end of the sampling cartridge (260) is provided with a slot hole that is buckled and connected to the surface of the puncture sampling needle (100), and the positioning tube (240), the telescopic limiting sleeve (250) and the surface of the sampling cartridge (260) are connected to allow the needle body of the puncture sampling needle (100) to pass through.

2. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The moving ball head (230) is a hollow spherical structure, and a cross groove (231) is provided on the bottom surface of the moving ball head (230). A through hole located on the axis of the sleeve hole (320) is opened on the surface of the ball sleeve seat (210).

3. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The pre-guide component (200) and the functional card seat (300) are made of one of medical-grade polymer and ceramic materials; the outer periphery of the swing ball sleeve (220) is provided with anti-slip convex patterns; and the moving ball head (230) is interference-fitted on the inner side of the swing ball sleeve (220).

4. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The second locking member (251) and the first locking member (270) have the same structure and both include a locking tongue (271) and a crank pressure rod (272); fixed shaft ears (211) rotatably connected to the crank pressure rod (272) are provided on both sides of the ball sleeve seat (210); a stop bead is provided on the surface of the locking tongue (271); the outer circumference center of the crank pressure rod (272) deviates from the deflection axis of the crank pressure rod (272) and abuts against the surface of the crank pressure rod (272); and positioning holes (223) adapted to the stop bead on the surface of the locking tongue (271) are provided on both sides of the swing ball sleeve (220) and the surface of the positioning tube (240).

5. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The surface of the fixed card seat (400) is provided with a U-shaped sleeve groove matched with the card edge (310), and the sleeve groove is arranged parallel to the surface direction of the functional card seat (300), and card grooves (410) are provided on both sides of the sleeve groove, and elastic locking ears (330) on both sides of the card edge (310) correspond to the positions of the card grooves (410).

6. A kidney biopsy puncture sampling device according to claim 1, characterized in that: The positioning patch (500) is a component made of polyethylene or polyvinyl chloride (PVC) material, and the positioning patch (500) is a transparent adhesive patch structure.

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