CN212547010U - Marrow aspiration biopsy needle - Google Patents
Marrow aspiration biopsy needle Download PDFInfo
- Publication number
- CN212547010U CN212547010U CN202020328287.1U CN202020328287U CN212547010U CN 212547010 U CN212547010 U CN 212547010U CN 202020328287 U CN202020328287 U CN 202020328287U CN 212547010 U CN212547010 U CN 212547010U
- Authority
- CN
- China
- Prior art keywords
- pipe
- tube
- pipe body
- bone marrow
- inner tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a marrow aspiration biopsy needle, which comprises an outer tube and an inner tube; the outer pipe comprises a first pipe body, a second pipe body and a connecting pipe section, one end of the first pipe body is connected with one end of the second pipe body through the connecting pipe section, and the other end of the second pipe body is provided with a first cutting edge; the inner diameter of the first pipe body is larger than that of the second pipe body; the inner pipe is arranged in the outer pipe and can move relative to the outer pipe along the axial direction of the outer pipe; one end of the inner pipe, which is close to the second pipe body, is provided with a second cutting edge, the length of the inner pipe is longer than that of the first pipe body, and the inner pipe is in interference fit with the second pipe body. Bone marrow aspiration biopsy needle, can effectively solve traditional bone marrow biopsy needle and get the biopsy difficulty, get the biopsy success rate lower, need sampling many times, patient does not have an end to bear more painful technical problem.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to marrow aspiration biopsy needle.
Background
A conventional bone marrow biopsy needle is generally a sharp tip, and bone marrow inside a tube is collected by inserting the biopsy needle into the inside of the bone marrow, filling the metal tube with the bone marrow, and then withdrawing the biopsy needle. However, since the bone marrow has no grasping force in the tube, the bone marrow is easy to fall off from the metal tube when the biopsy needle is withdrawn, thereby causing failure of taking the bone marrow for biopsy. The traditional bone marrow biopsy needle is difficult to take biopsies, has low biopsy taking success rate, needs to sample for multiple times, and causes more pain to patients without end.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide a marrow aspiration biopsy needle, it can solve traditional marrow biopsy needle and get the biopsy difficulty, get the biopsy success rate lower, need sampling many times, and patient does not have an end to bear more painful technical problem.
In order to achieve the above purpose, the utility model provides a marrow aspiration biopsy needle, which comprises an outer tube and an inner tube; the outer pipe comprises a first pipe body, a second pipe body and a connecting pipe section, one end of the first pipe body is connected with one end of the second pipe body through the connecting pipe section, and the other end of the second pipe body is provided with a first cutting edge; the inner diameter of the first pipe body is larger than that of the second pipe body;
the inner pipe is arranged in the outer pipe and can move relative to the outer pipe along the axial direction of the outer pipe; one end of the inner pipe, which is close to the second pipe body, is provided with a second cutting edge, the length of the inner pipe is longer than that of the first pipe body, and the inner pipe is in interference fit with the second pipe body.
Furthermore, a gap is formed in the edge of the second cutting edge and communicated with the cavity of the inner tube; the inner pipe and the second pipe body are in interference fit so that the gap is closed.
Furthermore, the inner pipe is provided with a groove communicated with the cavity of the inner pipe, and the notch extends to the groove along the axial direction of the inner pipe.
Further, the connecting pipe section is an arc-shaped pipe section which is in smooth transition from the second pipe body to the first pipe body.
Further, one end of the first pipe body, which is far away from the second pipe body, is provided with a handle part.
Further, one end of the inner pipe, which is far away from the second pipe body, penetrates out of the handle part, and a handheld part is arranged at the end part of the inner pipe.
Furthermore, the handheld portion is cylindrical, a direction identification arrow is arranged on the handheld portion, and a plane where the direction identification arrow is located is parallel to the cross section of the groove and the cross section of the notch.
Furthermore, the push rod is arranged in the inner tube and can move along the axial direction of the inner tube relative to the inner tube.
Furthermore, the outer tube, the inner tube and the push rod are coaxially arranged.
Furthermore, one end, far away from the second pipe body, of the push rod penetrates out of the handheld portion, a hand buckle is arranged at the end portion of the push rod, and a through hole for fingers to penetrate through is formed in the hand buckle.
The utility model provides a marrow aspiration biopsy needle compares in prior art, has following technological effect:
when the bone marrow aspiration biopsy needle of the utility model is used, the outer tube is inserted into the bone marrow, cutting bone marrow through the first cutting edge to enable the bone marrow to enter the outer tube, inserting the inner tube into the outer tube until the inner tube is inserted to the bottom, wherein the end, provided with the second cutting edge, of the inner tube is positioned in the second tube body and is in interference fit with the second tube body, and thus, the inner diameter of the end, provided with the second cutting edge, of the inner tube is reduced, thereby tightly grasping the root of the bone marrow sample, rotating the inner tube by 360 degrees from left to right at the moment, cutting the bone marrow sample through the second cutting edge, so that the bone marrow sample in the inner tube is not dropped from the tube body when the outer tube is taken out together with the inner tube, further solves the problem of difficulty in biopsy taking of the marrow biopsy needle in the prior art, improves the success rate of biopsy taking, can successfully take samples at one time, and reduces the pain of patients. The bone marrow aspiration biopsy needle of the utility model has simple structure and convenient operation.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a schematic view of the overall structure of the biopsy needle for bone marrow aspiration of the present invention;
FIG. 2 is a schematic structural view of an outer tube of the biopsy needle for bone marrow aspiration of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic structural view of the inner tube of the biopsy needle for bone marrow aspiration of the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4;
fig. 6 is a schematic structural view of the push rod of the biopsy needle for bone marrow aspiration of the present invention.
The hand-held connecting pipe comprises an outer pipe 1, an outer pipe 11, a first pipe body 111, a handle part 12, a second pipe body 121, a first cutting edge 13, a connecting pipe section 2, an inner pipe 21, a second cutting edge 22, a gap 23, a groove 24, a cavity 25, a hand-held part 251, a direction mark arrow 3, a push rod 31 and a hand buckle.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a bone marrow aspiration biopsy needle according to an embodiment of the present invention includes an outer tube 1 and an inner tube 2; the outer tube 1 comprises a first tube body 11, a second tube body 12 and a connecting tube section 13, one end of the first tube body 11 is connected with one end of the second tube body 12 through the connecting tube section 13, and the other end of the second tube body 12 is provided with a first cutting edge 121; the inner diameter of the first pipe 11 is larger than that of the second pipe 12;
the inner pipe 2 is arranged in the outer pipe 1, and the inner pipe 2 can move relative to the outer pipe 1 along the axial direction of the outer pipe 1; a second cutting edge 21 is arranged at one end, close to the second pipe body 12, of the inner pipe 2, the length of the inner pipe 2 is longer than that of the first pipe body 11, and the inner pipe 2 is in interference fit with the second pipe body 12;
based on the above structure, when the medical staff uses the bone marrow aspiration biopsy according to the present invention to sample the bone marrow sample of the patient, the outer tube 1 is inserted into the bone marrow, the bone marrow is cut by the first cutting edge 121 to enter the outer tube 1, the inner tube 2 is inserted into the outer tube 1 until the inner tube 2 is inserted to the bottom, and the end of the inner tube 2 having the second cutting edge 21 is located in the second tube 12 and is in interference fit with the second tube 12, so that the end of the inner tube 2 having the second cutting edge 21 has a reduced inner diameter, thereby tightly grasping the root of the bone marrow sample, and then the inner tube 2 is rotated by 360 degrees from left to right, and the bone marrow sample is cut by the second cutting edge 21, so that the bone marrow sample in the inner tube 2 will not fall off from the tube when the outer tube 1 is taken out together with the inner tube 2, thereby solving the problem of difficulty in biopsy needle in biopsy in the prior art, the success rate of biopsy taking is improved, the sampling can be successfully carried out once, and the pain of the patient is reduced. The bone marrow aspiration biopsy needle of the utility model has simple structure and convenient operation.
In the embodiment of the present invention, the inner tube 2 is in clearance fit with the first tube 11; the length of the outer pipe 1 is 3-10mm longer than that of the inner pipe 2; the inner diameters of the outer pipe 1 and the inner pipe 2 are 2-8 mm. The first cutting edge 121 is in different shapes such as a saw-tooth shape or a tooth shape, so as to meet the requirements of different conditions of an illness.
Further, as a specific embodiment of the bone marrow aspiration biopsy needle provided by the present invention, a notch 22 is opened at the edge of the second cutting edge 21, and the notch 22 is communicated with a cavity 24 of the inner tube 2; the inner tube 2 and the second tubular body 12 are in interference fit to close the gap 22. So, through being equipped with breach 22, can further reduce the internal diameter of inner tube 2 to can grasp the marrow sample root better, prevent that the marrow sample in the inner tube 2 from droing, further improve and get the biopsy success rate, improve the success rate of once taking a sample, reduce patient's misery.
Further, referring to fig. 1, as a specific embodiment of the bone marrow aspiration biopsy needle provided by the present invention, a groove 23 is provided on the inner tube 2 and is communicated with a cavity 24 of the inner tube 2, and the gap 22 extends to the groove 23 along the axial direction of the inner tube 2. Thus, the notch 23 facilitates subsequent observation of the bone marrow specimen and prevents over-compression of the bone marrow biopsy during sampling of the bone marrow.
Further, referring to fig. 1 and 4, as an embodiment of the bone marrow biopsy needle provided by the present invention, the connecting pipe section 13 is an arc-shaped pipe section smoothly transited from the second pipe 12 to the first pipe 11. Therefore, the inner tube 2 is more easily transited from the clearance fit with the first tube body 11 to the interference fit with the second tube body 12, and the insertion is more labor-saving.
Further, referring to fig. 1, as an embodiment of the bone marrow biopsy needle provided by the present invention, a handle portion 111 is disposed at an end of the first tube 11 away from the second tube 12.
Further, referring to fig. 1, as a specific embodiment of the bone marrow biopsy needle provided by the present invention, an end of the inner tube 2 away from the second tube 12 protrudes from the handle portion 111, and a hand-held portion 25 is provided at an end thereof. Specifically, the hand-held portion 25 is screwed to the handle portion 111. In this way, the inner tube 2 can be fixed in the outer tube 1, thereby preventing the bone marrow sample from being affected by shaking when the inner tube 2 is inserted into the outer tube 1.
Further, referring to fig. 1, as a specific embodiment of the biopsy needle for bone marrow aspiration provided by the present invention, the handle portion 25 is cylindrical, a direction mark arrow 251 is disposed on the handle portion 25, and a plane where the direction mark arrow 251 is located is parallel to the cross section of the groove 23 and the cross section of the notch 22. Thus, after the inner tube 2 is inserted into the outer tube 1, the direction mark arrow 251 can prompt the user to orient the groove 23 of the inner tube 2 for sampling currently, so as to conveniently avoid directing the groove 23 downwards, and avoid the bone marrow sample from falling off from the inner tube 2 when the inner tube 2 is taken out subsequently.
Further, please refer to fig. 1, which is a specific embodiment of the biopsy needle for bone marrow aspiration provided by the present invention, further comprising a push rod 3, wherein the push rod 3 is disposed in the inner tube 2, and the push rod 3 can move along the axial direction of the inner tube 2 relative to the inner tube 2. In this way, after the outer tube 1 is removed together with the inner tube 2, the bone marrow biopsy in the inner tube 2 can be pushed out by the push rod 3.
Further, referring to fig. 1, as a specific embodiment of the biopsy needle for bone marrow aspiration provided by the present invention, one end of the push rod 3, which is far away from the second tube 12, penetrates out of the hand-held portion 25, and a hand buckle 31 is disposed at an end portion thereof, and a through hole for fingers to pass through is disposed on the hand buckle 31. Thus, the operation is more convenient.
The following describes in detail a method for using a biopsy needle for bone marrow aspiration according to an embodiment of the present invention with reference to fig. 1 to 4:
firstly, a puncture instrument is used for puncturing cortical bone, a puncture needle is taken out after a working channel is established, a working sleeve is left, then the outer tube 1 of the bone marrow aspiration biopsy needle of the utility model is inserted into the working sleeve, when the first cutting edge 121 of the outer tube 1 reaches the pathological change position of bone marrow, the outer tube rotates left and right and performs rotary cutting downwards for 3-40mm, the inner wall of the outer tube 1 for sampling is filled with bone marrow, the height of the bone marrow is about 3-40mm, the outer tube 1 continues to stay in the working sleeve after cutting and cutting the bone marrow, the outer tube 1 keeps still at the moment, the inner tube 2 is inserted into the outer tube 1, when the inner tube 2 is inserted to the bottom, one end of the inner tube 2 provided with the second cutting edge 21 is positioned in the second tube body 12, the inner tube 2 is in interference fit with the second tube body 12 to close the gap 22, thereby grasping the root of the, the bone marrow sample is cut by the second cutting edge 21, the outer tube 1 is taken out together with the inner tube 2, the inner tube 2 is taken out from the outer tube 1 when the direction marking arrow 251 is parallel to the horizontal direction, and finally the push rod 3 is used to push out the bone marrow biopsy.
In summary, when the medical staff uses the bone marrow aspiration biopsy of the present invention to sample a bone marrow sample for a patient, the outer tube 1 is inserted into the bone marrow, the bone marrow is cut by the first cutting edge 121 to enter the outer tube 1, the inner tube 2 is inserted into the outer tube 1 until the inner tube 2 is inserted to the bottom, and at this time, one end of the inner tube 2 having the second cutting edge 21 is located in the second tube 12 and is in interference fit with the second tube 12, so that the end of the inner tube 2 having the second cutting edge 21 is tightly grasped at the root of the bone marrow sample due to the reduced inner diameter, and at this time, the inner tube 2 is rotated 360 degrees from left to right, and the bone marrow sample is cut by the second cutting edge 21, so that when the outer tube 1 is taken out together with the inner tube 2, the bone marrow sample in the inner tube 2 does not fall off from the tube, thereby solving the problem of difficulty in biopsy needle in, the success rate of biopsy taking is improved, the sampling can be successfully carried out once, and the pain of the patient is reduced. The bone marrow aspiration biopsy needle of the utility model has simple structure and convenient operation.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A bone marrow aspiration biopsy needle, which is characterized by comprising an outer tube and an inner tube; the outer pipe comprises a first pipe body, a second pipe body and a connecting pipe section, one end of the first pipe body is connected with one end of the second pipe body through the connecting pipe section, and the other end of the second pipe body is provided with a first cutting edge; the inner diameter of the first pipe body is larger than that of the second pipe body;
the inner pipe is arranged in the outer pipe and can move relative to the outer pipe along the axial direction of the outer pipe; one end of the inner pipe, which is close to the second pipe body, is provided with a second cutting edge, the length of the inner pipe is longer than that of the first pipe body, and the inner pipe is in interference fit with the second pipe body.
2. The bone marrow aspiration biopsy needle of claim 1, wherein the edge of the second cutting edge is provided with a notch, and the notch is communicated with the cavity of the inner tube; the inner pipe and the second pipe body are in interference fit so that the gap is closed.
3. The needle of claim 2, wherein the inner tube has a notch communicating with the cavity of the inner tube, and the notch extends to the notch along the axial direction of the inner tube.
4. The bone marrow aspiration biopsy needle of claim 1, wherein the connecting tube section is an arc-shaped tube section smoothly transited from the second tube body to the first tube body.
5. The bone marrow aspiration biopsy needle of claim 3, wherein an end of the first tube distal to the second tube is provided with a handle portion.
6. The needle of claim 5 wherein an end of the inner tube distal to the second tube extends out of the handle portion and is provided with a handle at an end thereof.
7. The biopsy needle of claim 6, wherein the handle is cylindrical, and a direction indicator arrow is provided on the handle, and a plane of the direction indicator arrow is parallel to a cross section of the groove and a cross section of the notch.
8. The bone marrow aspiration biopsy needle of any one of claims 6 or 7, further comprising a push rod disposed within the inner tube and movable relative to the inner tube in an axial direction of the inner tube.
9. The needle of claim 8, wherein the outer tube, the inner tube and the push rod are coaxially disposed.
10. The needle of claim 8, wherein the end of the push rod away from the second tube protrudes from the handle and is provided with a hand buckle at the end thereof, and the hand buckle is provided with a through hole for a finger to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328287.1U CN212547010U (en) | 2020-03-16 | 2020-03-16 | Marrow aspiration biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020328287.1U CN212547010U (en) | 2020-03-16 | 2020-03-16 | Marrow aspiration biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212547010U true CN212547010U (en) | 2021-02-19 |
Family
ID=74618475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020328287.1U Active CN212547010U (en) | 2020-03-16 | 2020-03-16 | Marrow aspiration biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212547010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274061A (en) * | 2021-05-11 | 2021-08-20 | 重庆西山科技股份有限公司 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
-
2020
- 2020-03-16 CN CN202020328287.1U patent/CN212547010U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274061A (en) * | 2021-05-11 | 2021-08-20 | 重庆西山科技股份有限公司 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8439846B2 (en) | Bone biopsy device | |
| JP4648554B2 (en) | Bone marrow biopsy assembly and bone marrow biopsy collector | |
| US5560373A (en) | Needle core biopsy instrument with durable or disposable cannula assembly | |
| JP4740510B2 (en) | Bone marrow biopsy needle | |
| US7338456B2 (en) | Bone marrow biopsy needle | |
| EP1743669A2 (en) | Device for shielding a sharp tip of a cannula and method of using the same | |
| US9572551B2 (en) | Biopsy trocar | |
| CN106333711A (en) | Living kidney tissue puncturing sampling needle | |
| US9220484B2 (en) | Reduced profile biopsy device | |
| CN212547010U (en) | Marrow aspiration biopsy needle | |
| CN108095774B (en) | Improved bone biopsy device | |
| EP1396230A1 (en) | Improved needle instrument for taking osteomedullary bioptical samples | |
| JP2019508197A (en) | Biopsy sample collection device | |
| CN202184751U (en) | Puncturing device capable of sampling | |
| CN210019443U (en) | Bone tissue biopsy needle | |
| US20100022914A1 (en) | Skin Biopsy Devices, Kits Containing Skin Biopsy Device, and Methods of Obtaining a Skin Biopsy | |
| CN208910312U (en) | Suction integration is through scope aspiration biopsy instrument | |
| CN213465119U (en) | Centrum pathology biopsy sampling device | |
| CN111616749A (en) | Liver biopsy puncture needle capable of sampling multiple depths simultaneously | |
| CN220442684U (en) | Multi-sampling biopsy device | |
| EP3174469B1 (en) | Scooper core needle | |
| CN221555719U (en) | Medical clinical laboratory's acupuncture formula tissue sampling device | |
| CN215018013U (en) | Bone marrow biopsy needle | |
| CN103284762A (en) | Device for sampling organ | |
| CN220158249U (en) | Blood taking needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |