Auxiliary puncture device applied to bone marrow puncture needle

Abstract

The utility model relates to an auxiliary puncture device applied to a bone marrow puncture needle. The auxiliary puncture device comprises an installation cylinder, a driving component, a transmission component and a shell. A clamping piece used for clamping and fixing a puncture needle is arranged on the installation cylinder, the driving component comprises a motor, the motor is provided with an output shaft, and the installation cylinder is in transmission connection with the output shaft through a transmission component. When the auxiliary puncture device is used for bone marrow puncture, medical staff only need to position and clamp the puncture needle in the installation cylinder through the clamping piece, and after installation is completed, the effect of driving the puncture needle to rotate is finally achieved by starting the motor. The medical staff continues to push the whole device to work forwards along the positioned puncture point, and at the moment, the puncture needle can easily drill into the bone substance, so that subsequent bone marrow specimen extraction is facilitated. Compared with the prior art, the puncture needle is driven by the driving component to rotate, so that the puncture needle can easily drill into sclerotin, the operation burden of medical staff is greatly reduced, and the puncture needle has the advantage of high puncture efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an auxiliary puncture device applied to a bone marrow puncture needle. Background Art

[0002] Bone marrow puncture is a common diagnostic technique for obtaining bone marrow fluid, which is usually used for the diagnosis, differential diagnosis and treatment follow-up of various blood diseases. The bone marrow puncture needle is the main instrument used. However, there are still some inconveniences in clinical practice.

[0003] Bone marrow puncture requires the puncture needle to be inserted into the bone. Because the patient's bones are generally hard, during the operation, a lot of force is needed to insert the puncture needle into the bone marrow, which increases the burden on medical staff, resulting in low puncture efficiency and greater difficulty in operation. Summary of the invention

[0004] In view of the above problems, the utility model provides an auxiliary puncture device for a bone marrow puncture needle, which can drive the puncture needle to rotate through a driving component so that the puncture needle can easily penetrate the bone, greatly reducing the operating burden of medical staff and having the advantage of higher puncture efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An auxiliary puncture device for a bone marrow puncture needle, comprising:

[0007] An installation cylinder, wherein the puncture needle is inserted into the installation cylinder and installed, and a clamping member for clamping and fixing the puncture needle is provided on the installation cylinder;

[0008] A drive component, the drive component comprising a motor having an output shaft;

[0009] a transmission component, through which the mounting cylinder is transmission-connected to the output shaft; and

[0010] The housing, the driving component and the transmission component are all arranged on the housing.

[0011] In one embodiment, the transmission component includes a first gear and a second gear;

[0012] The first gear is connected to the output shaft, and the second gear is meshed with the first gear;

[0013] The middle part of the second gear is penetrated, and the mounting tube is arranged in the middle part of the second gear.

[0014] In one embodiment, a connecting cylinder is fixedly disposed in the middle of the second gear, and the connecting cylinder has mounting ends extending outwardly to both sides of the second gear, and the second gear is rotatably connected to the housing through the mounting ends;

[0015] The installation tube is detachably connected to the connecting tube, and the shell is provided with an avoidance through hole for installing the installation tube.

[0016] In one embodiment, the mounting tube is threadedly connected to the connecting tube.

[0017] In one embodiment, the clamping member comprises:

[0018] Arc-shaped positioning plates, two of which are arranged opposite to each other inside the mounting cylinder, for positioning and clamping the syringe of the puncture needle;

[0019] A knob stud is arranged corresponding to the arc-shaped positioning plate, the knob stud is threadedly connected to the mounting tube, and the end of the knob stud is rotatably connected to the arc-shaped positioning plate.

[0020] In one embodiment, the knob stud has scale points evenly spaced along its length.

[0021] In one of the embodiments, a groove for installing a bearing is provided on the mounting end, and the mounting end is rotatably connected to the housing via a bearing.

[0022] In one embodiment, the motor is located on one side of the first gear, and the clamping member is located on another opposite side of the first gear.

[0023] The utility model adopts the above technical solution, which has the following advantages:

[0024] When using this auxiliary puncture device for bone marrow puncture, medical staff only need to position and clamp the puncture needle in the installation cylinder through the clamping part. During the installation process, it is necessary to pay attention to the coaxiality between the syringe and the installation cylinder. After the installation is completed, by starting the motor, the motor will drive the output shaft to rotate, and the output shaft will drive the installation cylinder to rotate through the transmission component, and finally achieve the effect of driving the puncture needle to rotate. The medical staff continues to push the device forward as a whole along the located puncture point. At this time, the puncture needle can easily drill into the bone, so as to facilitate the subsequent extraction of bone marrow specimens. Compared with the prior art, the puncture needle is driven to rotate by the driving component, so that the puncture needle can easily drill into the bone, which greatly reduces the operating burden of medical staff and has the advantage of higher puncture efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the external structure of the auxiliary puncture device in one embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the auxiliary puncture device in one embodiment of the utility model;

[0027] Figure 3 It is a schematic diagram of the specific structure of the transmission component in one embodiment of the utility model;

[0028] Figure 4 This is an exploded view of the internal structure of the auxiliary puncture device in one embodiment of the utility model;

[0029] The marks in the figure are as follows:

[0030] 10. Install the cylinder;

[0031] 20. driving component; 201. motor; 202. output shaft;

[0032] 30. Transmission component; 301. First gear; 302. Second gear; 303. Connecting cylinder; 304. Mounting end; 305. Groove;

[0033] 40. housing; 401. avoidance through hole; 402. mounting block;

[0034] 50. Clamping piece; 501. Arc-shaped positioning plate; 502. Knob stud. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary persons in the field without creative work are within the scope of protection of the utility model.

[0036] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second", "third", "fourth" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0037] Bone marrow puncture requires the puncture needle to be inserted into the bone. Because the patient's bone is generally hard, during the operation, a lot of force is needed to insert the puncture needle into the bone marrow, which increases the burden on medical staff, resulting in low puncture efficiency and high difficulty in operation. In response to the above problems, the utility model provides an auxiliary puncture device for bone marrow puncture needles, which can drive the puncture needle to rotate through a driving component, so that the puncture needle can easily drill into the bone, greatly reducing the operating burden of medical staff and having the advantage of high puncture efficiency. The specific scheme is as follows.

[0038] Reference Figure 1 as well as Figure 2 As shown, the utility model relates to an auxiliary puncture device for a bone marrow puncture needle, comprising a mounting cylinder 10, a driving component 20, a transmission component 30 and a housing 40. The mounting cylinder 10 is provided for the puncture needle to be inserted and installed, and a clamping member 50 for clamping and fixing the puncture needle is provided on the mounting cylinder 10. The driving component 20 comprises a motor 201, the motor 201 has an output shaft 202, the mounting cylinder 10 is connected to the output shaft 202 through the transmission component 30, and the driving component 20 and the transmission component 30 are both arranged on the housing 40. Specifically, a mounting block 402 is fixedly arranged on the outside of the motor 201, and the motor 201 is fixedly installed inside the housing 40 through the mounting block 402.

[0039] For example, when using the auxiliary puncture device for bone marrow puncture, the medical staff only needs to position and clamp the puncture needle in the installation cylinder 10 through the clamping member 50. During the installation process, it is necessary to pay attention to the coaxiality between the syringe and the installation cylinder 10. After the installation is completed, by starting the motor 201, the motor 201 will drive the output shaft 202 to rotate, and the output shaft 202 will drive the installation cylinder 10 to rotate through the transmission component 30, and finally achieve the effect of driving the puncture needle to rotate. The medical staff continues to push the device forward as a whole along the positioned puncture point. At this time, the puncture needle can easily drill into the bone, so as to facilitate the subsequent extraction of bone marrow specimens. Compared with the prior art, the puncture needle is driven to rotate by the driving component 20, so that the puncture needle can easily drill into the bone, which greatly reduces the operating burden of the medical staff and has the advantage of higher puncture efficiency.

[0040] In one embodiment, the overall structure of the transmission component 30 is further refined, and the transmission component 30 includes a first gear 301 and a second gear 302. The first gear 301 is connected to the output shaft 202, the second gear 302 is meshed with the first gear 301, the middle of the second gear 302 is penetrated, and the mounting cylinder 10 is arranged in the middle of the second gear 302.

[0041] During the operation of the device, the rotation of the output shaft 202 will drive the first gear 301 to rotate synchronously, and the first gear 301 will be linked to the second gear 302 meshing therewith, and finally the transmission installation cylinder 10 and the puncture needle will be driven to rotate.

[0042] Reference Figure 3 as well as Figure 4 As shown, in this embodiment, specifically, a connecting tube 303 is fixedly provided in the middle of the second gear 302, and the connecting tube 303 has a mounting end 304 extending outward to both sides of the second gear 302, and the second gear 302 is rotatably connected to the shell 40 through the mounting end 304.

[0043] It should be noted that the structural setting of the mounting end 304 optimizes the rotational connection structure between the second gear 302 and the housing 40. More preferably, in this embodiment, a groove 305 for bearing installation is provided on the mounting end 304, and the mounting end 304 is rotationally connected to the housing 40 through a bearing, further refining the rotational connection structure of the second gear 302.

[0044] In this embodiment, the installation cylinder 10 is detachably connected to the connecting cylinder 303, and the housing 40 is provided with an escape through hole 401 for installing the installation cylinder 10. Specifically, the installation cylinder 10 is threadedly connected to the connecting cylinder 303.

[0045] It should be noted that the detachable connection structure between the mounting tube 10 and the connecting tube 303 can facilitate medical personnel to disassemble, assemble and replace the puncture needle. In actual operation, medical personnel can first position and fix the puncture needle on the mounting tube 10 through the clamping member 50, and then install the mounting tube 10 as a whole on the connecting tube 303.

[0046] In one embodiment, the specific structure of the clamping member 50 is further refined, and the clamping member 50 includes an arc-shaped positioning plate 501 and a knob stud 502, wherein two arc-shaped positioning plates 501 are provided, and are arranged oppositely inside the mounting tube 10 to position and clamp the syringe of the puncture needle. The knob stud 502 is arranged corresponding to the arc-shaped positioning plate 501, and the knob stud 502 is threadedly connected to the mounting tube 10, and the end of the knob stud 502 is rotatably connected to the arc-shaped positioning plate 501.

[0047] For example, when the syringe part of the puncture needle needs to be clamped, the puncture needle is inserted into the mounting cylinder 10 as a whole, so that the syringe part corresponds to the position of the clamping member 50, and then the two knob studs 502 can be rotated to make the two oppositely arranged arc-shaped positioning plates 501 clamp the syringe part. During the operation, the coaxiality between the syringe and the mounting cylinder 10 needs to be kept consistent. The two sides of the arc-shaped positioning plate 501 can play a role in positioning the cylindrical syringe, and with the locking of the knob studs 502, the overall positioning and clamping effect is more stable.

[0048] In this embodiment, it is more preferable that in order to facilitate the operator to adjust the coaxiality between the puncture needle and the mounting tube 10, scale points are evenly spaced along the length direction of the knob stud 502. During the operation, the coaxiality of the puncture needle can be adjusted by observing the positions of the scale points on the two knob studs 502.

[0049] In one embodiment, the motor 201 is located on one side of the first gear 301 , and the clamping member 50 is located on another opposite side of the first gear 301 .

[0050] It should be noted that, through the setting of this structure, the clamping and positioning part and the transmission part of the device are respectively arranged on two opposite sides, which plays a role in optimizing the overall structural layout and avoids the situation where the adjustment structure of the clamping member 50 interferes with the driving component 20 when it rotates as a whole following the installation tube 10.

[0051] Specific implementation process:

[0052] When using the auxiliary puncture device for bone marrow puncture, the puncture needle is inserted into the mounting tube 10 as a whole, so that the syringe part corresponds to the position of the clamping member 50, and then the two knob studs 502 can be rotated to clamp the syringe part by two oppositely arranged arc-shaped positioning plates 501. During the operation, the coaxiality between the syringe and the mounting tube 10 needs to be kept consistent. The two sides of the arc-shaped positioning plate 501 can position the cylindrical syringe, and cooperate with the locking of the knob studs 502 to achieve the positioning and locking of the puncture needle.

[0053] After installation, by starting the motor 201, the motor 201 will drive the output shaft 202 to rotate, and the output shaft 202 will drive the installation cylinder 10 to rotate through the transmission component 30, and finally achieve the effect of driving the puncture needle to rotate. The medical staff can continue to push the device forward along the located puncture point, and the puncture needle can easily penetrate the bone to facilitate the subsequent extraction of bone marrow specimens.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An auxiliary puncture device for a bone marrow puncture needle, characterized in that: include: An installation cylinder, wherein the puncture needle is inserted into the installation cylinder and installed, and a clamping member for clamping and fixing the puncture needle is provided on the installation cylinder; A drive component, the drive component comprising a motor having an output shaft; A transmission component, through which the mounting cylinder is transmission-connected to the output shaft; as well as A housing, wherein the driving component and the transmission component are both arranged on the housing; The transmission component includes a first gear and a second gear; The first gear is connected to the output shaft, and the second gear is meshed with the first gear; The middle part of the second gear is penetrated, and the mounting tube is arranged in the middle part of the second gear.

2. The auxiliary puncture device according to claim 1, characterized in that: A connecting cylinder is fixedly arranged in the middle of the second gear, and the connecting cylinder has mounting ends extending outwardly to both sides of the second gear, and the second gear is rotatably connected to the housing through the mounting ends; The installation tube is detachably connected to the connecting tube, and the shell is provided with an avoidance through hole for installing the installation tube.

3. The auxiliary puncture device according to claim 2, characterized in that: The installation cylinder is threadedly connected to the connecting cylinder.

4. The auxiliary puncture device according to claim 2, characterized in that: The clamping member comprises: Arc-shaped positioning plates, two of which are arranged opposite to each other inside the mounting cylinder, for positioning and clamping the syringe of the puncture needle; A knob stud is arranged corresponding to the arc-shaped positioning plate, the knob stud is threadedly connected to the mounting tube, and the end of the knob stud is rotatably connected to the arc-shaped positioning plate.

5. The auxiliary puncture device according to claim 4, characterized in that: The knob stud is provided with scale points evenly spaced along its length direction.

6. The auxiliary puncture device according to claim 4, characterized in that: The mounting ends are each provided with a groove for mounting a bearing, and the mounting ends are rotatably connected to the housing via a bearing.

7. The auxiliary puncture device according to claim 4, characterized in that: The motor is located on one side of the first gear, and the clamping member is located on the other opposite side of the first gear.

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