Intervertebral foramen puncture lumbar intervertebral space biopsy sampling device

Abstract

The utility model relates to the technical field of biopsy sampling, and provides an intervertebral foramen puncture lumbar intervertebral space biopsy sampling device which comprises a puncture needle, the outer side wall of the puncture needle is sleeved with a puncture cannula, the outer side of the top of the puncture cannula is in threaded connection with a first handle, and the top of the first handle is provided with a connecting sleeve; a trephine pipe is further installed on the inner side of the connecting sleeve, a second handle is installed on the top of the trephine pipe, the trephine pipe penetrates into the puncture cannula to be used for biopsy sampling, and scales are arranged on the outer side wall of the puncture needle and used for observing the insertion depth; through the arrangement of scales on the outer side of the puncture needle, a doctor can conveniently manage the insertion depth and position, follow-up sampling is facilitated, and through the arrangement of the puncture needle, the guiding effect can be achieved, and follow-up puncture cannula insertion and trephine tube sampling are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of biopsy sampling technology, specifically a device for biopsy sampling of the lumbar intervertebral space via transforaminal puncture. Background Technology

[0002] In the medical field, particularly in the diagnosis and treatment of spinal diseases, precise sampling of the intervertebral disc for pathological examination or bacterial culture is crucial. This process is irreplaceable for diagnosing infections, inflammation, tumors, and assessing the degree of intervertebral disc degeneration. Traditional sampling methods often rely on open surgery or relatively crude puncture techniques, which are not only complex and invasive but also have limited accuracy in localization, increasing patient suffering and the risk of complications.

[0003] To address the aforementioned issues, transforaminal lumbar puncture has been developed in recent years. This technique uses a specially designed needle to enter the intervertebral space through the natural passage of the lumbar intervertebral foramen, significantly reducing damage to surrounding tissues and improving the precision and safety of the procedure. However, the design of existing puncture needles still has shortcomings, particularly in terms of positioning accuracy and ease of operation. Most puncture needles lack precise graduation markings, making it difficult for doctors to accurately determine the needle tip position during the puncture process, leading to sampling deviations and affecting the accuracy of diagnostic results.

[0004] Furthermore, although the use of a puncture cannula provides a channel for subsequent insertion of biopsy forceps, the coordination and stability of the puncture process and sampling operation still need to be improved. Especially in complex cases, ensuring that the puncture needle can remain stably in the target position while facilitating precise clamping of the target tissue by the biopsy forceps is one of the challenges currently facing the technology.

[0005] To address the problems raised in the background art, those skilled in the art have proposed a transforaminal lumbar intervertebral space biopsy sampling device. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a transforaminal lumbar intervertebral space biopsy sampling device. The scale set on the outside of the puncture needle allows the doctor to judge and adjust the needle tip position in real time during the puncture process, while ensuring the stability and safety of the entire puncture and sampling process.

[0007] A transforaminal lumbar intervertebral disc biopsy sampling device includes a puncture needle, a puncture cannula sleeved on the outer side of the puncture needle, a first handle threadedly connected to the outer side of the top of the puncture cannula, and a connecting sleeve installed on the top of the first handle; a trephine tube is also installed on the inner side of the connecting sleeve, and a second handle is installed on the top of the trephine tube.

[0008] Preferably, the trephine tube extends into the puncture cannula for biopsy sampling, and the outer wall of the puncture needle is provided with graduations for observing the insertion depth.

[0009] Preferably, the puncture cannula, the connecting sleeve, and the first handle form a cavity for placing the puncture needle and the trepanation tube, and the inner ring at the bottom end of the trepanation tube is toothed.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The scale on the outside of the puncture needle makes it easy for doctors to manage the insertion depth and position, which facilitates subsequent sampling. The puncture needle can also serve as a guide, which facilitates the subsequent insertion of the puncture cannula and sampling with the trephine tube. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This utility model Figure 1 A schematic diagram of the structure after the puncture needle and puncture cannula are combined.

[0014] In the diagram: 1. Puncture needle; 2. First handle; 3. Puncture cannula; 4. Connecting sleeve; 5. Second handle; 6. Tremella tube. Detailed Implementation

[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0016] As attached Figure 1 To be continued Figure 2 As shown:

[0017] Example 1: According to Figure 1-2As shown, this utility model provides a transforaminal lumbar intervertebral disc biopsy sampling device, including a puncture needle 1. A puncture cannula 3 is fitted onto the outer wall of the puncture needle 1. A first handle 2 is threaded onto the outer side of the top of the puncture cannula 3. A connecting sleeve 4 is installed on the top of the first handle 2. A trephine tube 6 is also installed on the inner side of the connecting sleeve 4. A second handle 5 is installed on the top of the trephine tube 6. The markings on the outer side of the puncture needle 1 allow doctors to easily manage the insertion depth and position, facilitating subsequent sampling. The puncture needle 1 also serves as a guide. To facilitate subsequent insertion of the puncture cannula 3 and sampling with the trephine tube 6, the bottom ends of the puncture needle 1, puncture cannula 3, and trephine tube 6 are equipped with pointed tips to facilitate puncture operations. The diameter of the puncture needle 1 is 2mm and the length is 20cm. The diameter of the puncture cannula 3 is 3.5mm and the length is 15cm. The length of the trephine tube 6 is longer than that of the puncture cannula 3, and the length of the puncture cannula 3 is consistent with the 0 mark on the trephine tube 6. When the bottom end of the trephine tube 6 is inserted into the puncture cannula 3 and is level with the bottom end of the puncture cannula 3, the mark on the trephine tube 6 is level with the top end of the puncture cannula 3.

[0018] The trephine tube 6 extends into the puncture cannula 3 for biopsy sampling. The outer wall of the puncture needle 1 is marked with graduations for observing the insertion depth. The puncture cannula 3, the connecting sleeve 4, and the first handle 2 form a cavity for placing the puncture needle 1 and the trephine tube 6. The inner end of the trephine tube 6 has a toothed ring, which facilitates tissue sampling.

[0019] Working principle: When this device is needed, the puncture needle 1 is first inserted into the designated position. After confirming that the puncture needle 1 is in the correct position, the doctor inserts the puncture cannula 3 along the puncture needle 1. The design of the puncture cannula 3 should ensure its stability in the body while minimizing irritation to surrounding tissues.

[0020] Biopsy Procedure: After inserting the trocar 3, the physician inserts the trephine tube 6 into the intervertebral space through the trocar. The trephine tube 6 is designed to facilitate precise trephination of the target tissue within a confined space. Alternatively, biopsy forceps can be used to clamp the target tissue through the trocar 3. Sampling and Withdrawal: After trephination, the trephine tube 6 returns the tissue sample to the body for pathological examination or bacterial culture. Once sampling is complete, the physician withdraws the trocar 3 from the body.

[0021] Sampling and withdrawal: After clamping the target tissue, the trephine tube 6 returns the tissue sample to the outside of the body for pathological examination or bacterial culture. After sampling is completed, the doctor withdraws the puncture cannula 3 and the puncture needle 1 together from the body.

[0022] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0023] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An interlaminar foraminotomy transforaminal lumbar interbody space biopsy sampling device, characterized by: Including puncture needle (1), the outside wall of the puncture needle (1) is sleeved with a puncture sleeve (3), the outside of the top of the puncture sleeve (3) is screwed with a first handle (2), and the top of the first handle (2) is provided with a connecting sleeve (4); the inner side of the connecting sleeve (4) is also provided with a trephine tube (6), and the top of the trephine tube (6) is provided with a second handle (5).

2. The transforaminal lumbar interbody space biopsy sampling device of claim 1, wherein: The trephine tube (6) penetrates into the puncture sleeve (3) for biopsy sampling, and the outer side wall of the puncture needle (1) is provided with a scale for observing the insertion depth.

3. The transforaminal lumbar interbody space biopsy sampling device of claim 1, wherein: The puncture sleeve (3), the connecting sleeve (4) and the first handle (2) form a cavity, which is used for placing the puncture needle (1) and the trephine tube (6), and the ring mouth on the inner side of the bottom end of the trephine tube (6) is toothed.

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