Bone marrow biopsy needle

Abstract

The utility model discloses a bone marrow biopsy needle, and relates to the field of medical instruments. The device comprises a needle head assembly and a control assembly, the needle head assembly comprises a puncture needle, the puncture needle is arranged at the bottom of the anti-skid handle, two pull rings are symmetrically arranged at the top of the anti-skid handle, and a supporting block is arranged at the top of the anti-skid handle; the control assembly comprises a supporting head, and the supporting head is fixedly arranged at the top of the anti-skid handle. According to the improved bone marrow biopsy needle, the supporting cover which can be detachably controlled is introduced and connected with the top head, so that the scale groove in the outer portion of the supporting cover can more visually display the penetrating depth of the puncture needle, and the accuracy and convenience of operation are improved; in addition, the supporting block and the puncture needle which are synchronously arranged allow a user to flexibly adjust the height according to needs, and the adaptability and usability of the equipment are further enhanced; by means of the design, dependence on other auxiliary tools in the operation process is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically, it relates to a bone marrow biopsy needle. Background Technology

[0002] In existing medical technologies, bone marrow biopsy needles are used to obtain bone marrow samples for diagnosis and research.

[0003] Chinese Patent Application No. CN202322422634.3 discloses a bone marrow biopsy needle, including a puncture device and a sampling device. The puncture device comprises a puncture needle, puncture handles on both sides of the upper end of the puncture needle, and a first toothed cutting edge at the lower end of the puncture needle. The sampling device comprises a sampling needle installed inside the puncture needle, an external thread at the upper end of the sampling needle, a fixing block installed at the upper end of the sampling needle, an adjustment mechanism rotatably connected to the upper end of the fixing block and threadedly connected to the external thread, a second toothed cutting edge at the lower end of the sampling needle, a detachable negative pressure rod installed inside the sampling needle, a sealing ring fixedly installed at the lower end of the negative pressure rod, and a resistance mechanism at the top of the negative pressure rod. This invention has the advantages of smoothly extracting bone marrow tissue, preventing slippage during extraction, and enabling detection of the sampling length during the extraction process.

[0004] However, while the aforementioned devices achieve convenient puncture procedures through optimized biopsy needle structure, in practice, doctors still need to rely on additional measuring tools or experience to estimate the puncture depth. This not only increases the complexity of the procedure but may also affect the surgical outcome due to human error. Therefore, there is a market demand for a bone marrow biopsy needle that can more accurately and intuitively control the puncture depth.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a bone marrow biopsy needle.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A bone marrow biopsy needle includes a needle assembly and a control assembly;

[0009] The needle assembly includes a puncture needle, which is disposed at the bottom of the anti-slip handle. Two pull rings are symmetrically disposed at the top of the anti-slip handle, and a support block is disposed at the top of the anti-slip handle.

[0010] The control component includes a support head, which is fixedly mounted on the top of the anti-slip handle. A protective plate is provided on the outside of the support head, and a support cover is provided on the top of the support head. A top head is rotatably mounted on the top of the support cover, and a rotating rod is provided at the bottom of the top head, which passes through the support head.

[0011] Optionally, the bottom of the puncture needle is provided with a puncture head, and the interior of the puncture head is provided with a toothed blade, a negative pressure rod, a graduated groove and a sealing ring.

[0012] Optionally, the top of the anti-slip handle is provided with an adjustment groove, the puncture needle is threaded where it passes through the adjustment groove, and the pull ring is provided at the top of the adjustment groove.

[0013] Optionally, the support block is connected to the puncture needle, and the support block and the threaded control rod have the same shape.

[0014] Optionally, the top of the support head is provided with a control groove, the top of the control groove is provided with a stabilizing rod, the front of the stabilizing rod is provided with a positioning groove, the front of the protective plate is provided with a fixing screw that penetrates into the positioning groove, and the stabilizing rod is fixedly connected to the support cover.

[0015] Optionally, the support cover is in the shape of an inverted U-shape, the support cover is rotatably connected to the top head, and scale grooves are provided at both ends of the side of the support cover. A threaded control rod is provided at the bottom of the top head, and a lifting adjustment plate is externally threaded onto the threaded control rod.

[0016] Optionally, the top of the puncture needle is a square groove, and the bottom of the top head is a square rod.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] The improved bone marrow biopsy needle proposed in this invention introduces a detachable and controllable support cap, which is connected to the top head. This allows the scale groove on the outside of the support cap to more intuitively display the penetration depth of the puncture needle, improving the accuracy and convenience of the operation. In addition, the synchronously set support block and puncture needle allow users to flexibly adjust the height as needed, further enhancing the adaptability and ease of use of the device. This design reduces reliance on other auxiliary tools during the operation, lowers the difficulty of operation and potential human error, and improves the efficiency and safety of the operation. It is particularly suitable for bone marrow biopsy procedures that require high-precision operation.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of the bone marrow biopsy needle.

[0022] Figure 2 A cross-sectional view of the bone marrow biopsy needle structure;

[0023] Figure 3 This is a schematic diagram of the control component.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Needle assembly; 101. Puncture needle; 1011. Puncture head; 102. Anti-slip handle; 1021. Adjustment groove; 103. Pull ring; 104. Support block; 2. Control assembly; 201. Support head; 2011. Control groove; 2012. Stabilizing rod; 20121. Positioning groove; 202. Protective plate; 203. Rotating rod; 204. Support cover; 205. Top head; 2051. Threaded control rod; 206. Lifting adjustment plate; 2061. Threaded groove.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Please see Figure 1-3 As shown, this embodiment provides a bone marrow biopsy needle, including a needle assembly 1 and a control assembly 2;

[0029] The needle assembly 1 includes a puncture needle 101, which is disposed at the bottom of the anti-slip handle 102. Two pull rings 103 are symmetrically disposed at the top of the anti-slip handle 102, and a support block 104 is disposed at the top of the anti-slip handle 102.

[0030] The control component 2 includes a support head 201, which is fixedly mounted on the top of the anti-slip handle 102. A protective plate 202 is provided on the outside of the support head 201, and a support cover 204 is provided on the top of the support head 201. A top head 205 is rotatably mounted on the top of the support cover 204, and a rotating rod 203 is provided at the bottom of the top head 205 after passing through the support head 201.

[0031] In terms of usage, the height of the puncture needle 101 can be adjusted by rotating the anti-slip handle 102 and the puncture needle 101. The height of the puncture needle 101 can also be adjusted by manually rotating the top head 205 and connecting it to the puncture needle 101, thereby adjusting the puncture depth.

[0032] The improved bone marrow biopsy needle proposed in this invention introduces a detachable and controllable support cap 204, which is connected to the top head 205. This allows the scale groove on the outside of the support cap 204 to more intuitively display the penetration depth of the puncture needle 101, improving the accuracy and convenience of the operation. Furthermore, the synchronously designed support block 104 and puncture needle 101 allow users to flexibly adjust the height as needed, further enhancing the adaptability and ease of use of the device. This design reduces reliance on other auxiliary tools during the procedure, lowers the operational difficulty and potential human error, and improves surgical efficiency and safety. It is particularly suitable for bone marrow biopsy procedures requiring high precision.

[0033] In this embodiment, a puncture head 1011 is provided at the bottom of the puncture needle 101. The puncture head 1011 is provided with a toothed blade, a negative pressure rod, a graduated groove and a sealing ring inside. The structure and principle of the puncture needle 101 and the puncture head 1011 have been described in the prior art and will not be described again in this application.

[0034] In this embodiment, the top of the anti-slip handle 102 is provided with an adjustment groove 1021. The puncture needle 101 is threaded through the adjustment groove 1021. The pull ring 103 is provided at the top of the adjustment groove 1021. During use, the connection between the threaded puncture needle 101 and the adjustment groove 1021 makes it easy to control the height adjustment of the puncture needle 101. Furthermore, the pull ring 103 allows for easy manual control of the position of the anti-slip handle 102, facilitating subsequent control and adjustment.

[0035] In this embodiment, the support block 104 is connected to the puncture needle 101. The support block 104 and the threaded control rod 2051 have the same shape. In use, the puncture needle 101 can be controlled by controlling the support block 104 or the threaded control rod 2051 respectively. This control method can facilitate the full and rapid control of the puncture needle 101.

[0036] In this embodiment, a control groove 2011 is provided on the top of the support head 201, and a stabilizing rod 2012 is provided through the top of the control groove 2011. A positioning groove 20121 is provided on the front of the stabilizing rod 2012, and a fixing screw is provided through the front of the protective plate 202, which extends into the positioning groove 20121. The stabilizing rod 2012 is fixedly connected to the support cover 204. The connection of the protective plate 202 facilitates the connection and disassembly of the support cover 204 and the top head 205 connected to the support cover 204, which is convenient for subsequent control.

[0037] In this embodiment, the support cover 204 is in the shape of an inverted U. The support cover 204 is rotatably connected to the top head 205. The support cover 204 has scale grooves at both ends of its sides. The bottom of the top head 205 is provided with a threaded control rod 2051. The threaded control rod 2051 is externally threaded to a lifting adjustment plate 206. The height of the observation puncture needle 101 can be controlled by adjusting the height of the lifting adjustment plate 206 and the scale groove, making subsequent control more convenient.

[0038] In this embodiment, the top of the puncture needle 101 is a square groove, and the bottom of the top head 205 is a square rod. Using this structure, the puncture needle 101 and the top head 205 can be controlled to rotate synchronously, and the height of the puncture needle 101 can be adjusted.

[0039] In summary, the prior art has described a structure that facilitates puncture. This application improves upon this structure by providing a detachable support cover 204. By connecting the support cover 204 to the top head 205, the scale groove on the outside of the support cover 204 allows for easier observation of the penetration depth of the puncture needle 101. The simultaneously provided support block 104 and puncture needle 101 allow for convenient height adjustment, making the device more convenient to use.

[0040] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A bone marrow biopsy needle, characterized in that, It includes a needle assembly (1) and a control assembly (2); The needle assembly (1) includes a puncture needle (101), which is located at the bottom of the anti-slip handle (102). Two pull rings (103) are symmetrically arranged on the top of the anti-slip handle (102), and a support block (104) is provided on the top of the anti-slip handle (102). The control component (2) includes a support head (201), which is fixedly disposed on the top of the anti-slip handle (102). A protective plate (202) is disposed on the outside of the support head (201), and a support cover (204) is disposed on the top of the support head (201). A top head (205) is rotatably disposed on the top of the support cover (204), and a rotating rod (203) is disposed at the bottom of the top head (205) after penetrating the support head (201).

2. A bone marrow biopsy needle according to claim 1, wherein, The bottom of the puncture needle (101) is provided with a puncture head (1011), and the puncture head (1011) is provided with a toothed blade, a negative pressure rod, a scale groove and a sealing ring inside.

3. The bone marrow biopsy needle of claim 1 wherein, The top of the anti-slip handle (102) is provided with an adjustment groove (1021), and the puncture needle (101) is threaded through the adjustment groove (1021). The pull ring (103) is located at the top of the adjustment groove (1021).

4. The bone marrow biopsy needle of claim 1 wherein, The support block (104) is connected to the puncture needle (101).

5. The bone marrow biopsy needle of claim 1 wherein, The top of the support head (201) is provided with a control groove (2011), and a stabilizing rod (2012) is provided through the top of the control groove (2011). A positioning groove (20121) is provided on the front of the stabilizing rod (2012). A fixing screw is provided through the front of the protective plate (202) and extends into the positioning groove (20121). The stabilizing rod (2012) is fixedly connected to the support cover (204).

6. The bone marrow biopsy needle of claim 1 wherein, The support cover (204) is in the shape of an inverted U-shape. The support cover (204) is rotatably connected to the top head (205). The support cover (204) has scale grooves at both ends of its side. The bottom of the top head (205) is provided with a threaded control rod (2051). The threaded control rod (2051) is externally threaded to a lifting adjustment plate (206).

7. The bone marrow biopsy needle of claim 1 wherein, The top of the puncture needle (101) is a square groove, and the bottom of the top head (205) is a square rod.

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