CN217645310U

CN217645310U - Marrow puncture needle

Info

Publication number: CN217645310U
Application number: CN202221388192.4U
Authority: CN
Inventors: 刘霞霞; 张睿娟; 文晓玲; 张夏林; 张恬波; 黎若祺
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-10-25
Anticipated expiration: 2032-06-06

Abstract

The utility model belongs to the technical field of medical instrument, specifically a marrow pjncture needle. Including the supporting seat and install the handle on the supporting seat, supporting seat one side is provided with the recess, link up from top to bottom the recess, and recess bottom opening is in the needle body and connects, and the needle body is the hollow cylinder structure, wears to be equipped with the nook closing member in the needle body, and the end of puncturing of nook closing member can extend to outside the needle body, and the other end and the shutoff piece I of nook closing member are connected, are provided with mobilizable shutoff piece II in the supporting seat, and shutoff piece I and shutoff piece II can seal the recess tightly. The utility model discloses can improve traditional pjncture needle and need take out repeatedly and insert, the pjncture needle easily stabs medical staff, easily pollutes, be not convenient for the application of force scheduling problem, improves work efficiency when guaranteeing medical staff and patient safety, can be used to the diagnosis and the treatment of the relevant disease of blood system.

Description

Marrow puncture needle

Technical Field

The utility model belongs to the technical field of medical instrument, specifically a marrow pjncture needle.

Background

Bone marrow puncture is a common diagnostic technique for collecting bone marrow fluid, is a common examination method for hematology department, and can find and diagnose blood system diseases and judge the treatment effect of the blood system diseases through bone marrow puncture. The puncture site of the bone marrow comprises posterior superior iliac spine, anterior superior iliac spine, sternum, lumbar spinous process, anterior tibia and the like.

When the bone marrow puncture needle is used, a medical worker inserts the needle body together with the needle core into a patient, then extracts the needle core, and then extracts bone marrow by using the syringe, the needle core needs to be extracted and inserted again in the bone marrow liquid extraction process, but the current needle core is troublesome to disassemble and assemble, and the needle head of the bone marrow puncture needle is exposed outside, so that the medical worker is very easy to be punctured when the needle core is taken out from the puncture bag, put into the puncture bag and temporarily placed in the puncture process due to the sharp needle point, and the working needle puncture injury and infection risk of the medical worker are increased; because puncture very cost physical power, and the bone puncture needle that uses clinically does not have the handle at present, medical staff passes through the application of force that the handle can be better, also can effectively prevent to puncture for a long time and the hand fatigue that brings, alleviates patient's pain simultaneously, promotes the stability of operation, therefore we have provided a hematology department bone marrow pjncture needle and have solved above-mentioned problem.

Disclosure of Invention

The utility model provides a bone marrow puncture needle for solving the problems.

The utility model adopts the following technical proposal: the utility model provides a marrow pjncture needle, includes the supporting seat and installs the handle on the supporting seat, supporting seat one side is provided with the recess, link up from top to bottom the recess, recess bottom opening is in the needle body and connects, and the needle body is the hollow circular cylinder structure, wears to be equipped with the nook closing member in the needle body, and the puncture end of nook closing member can extend to outside the needle body, and the other end and the shutoff piece I of nook closing member are connected, are provided with mobilizable shutoff piece II in the supporting seat, and shutoff piece I and shutoff piece II can seal the recess tightly.

Furthermore, shutoff piece II sets up in the inside cavity of supporting seat, shutoff piece II around both sides be provided with the cavity passageway, cavity passageway and cavity intercommunication, cavity right side and recess intercommunication, shutoff piece II around both sides be connected with the one end of connecting rod respectively, the other end of connecting rod extends the cavity passageway and is connected with the nut.

Furthermore, bulges which are consistent with the structure size of the grooves at the lower part are arranged at the bottoms of the plugging piece I and the plugging piece II, and the bulges can tightly plug the grooves at the lower part.

Furthermore, the right end of the hollow channel is arranged at the central axis of the groove, and a vertically downward turning structure is arranged at the right end of the hollow channel.

Furthermore, the connecting rod is a smooth solid cylinder and is connected with a screw rod with annular grains on the outer surface; the outer surface of the nut is provided with anti-slip patterns, and the inner surface of the nut is provided with annular grains corresponding to the screw; the diameter of the nut is larger than that of the screw; the nut protrudes from the surface of the support base.

Further, the hollow passage has a smooth inner surface, and a diameter larger than the connecting rod, through which the connecting rod passes through the hollow passage without resistance.

Further, the grooves comprise an upper groove and a lower groove, wherein the size and the shape of the upper groove are consistent with those of the plugging piece I and the plugging piece II, and the upper groove can be tightly plugged by the plugging piece I and the plugging piece II; the size of the lower groove is smaller than that of the upper groove, and the junction of the upper groove and the lower groove is lower than the lower surface of the hollow cavity.

Furthermore, the supporting seat is made of plastic.

Furthermore, the needle core and the needle body are made of stainless steel.

Furthermore, the handle is made of plastic materials and is sleeved on the outer surfaces of the two ends of the supporting seat.

Compared with the prior art, the utility model discloses can improve traditional pjncture needle and need take out repeatedly to insert, the pjncture needle easily stabs medical staff, easily pollutes, be not convenient for application of force scheduling problem, improve work efficiency when guaranteeing medical staff and patient safety, can be used to the diagnosis and the treatment of the relevant disease of blood system.

Drawings

FIG. 1 is a schematic diagram of a novel bone marrow puncture needle in an embodiment of the present invention;

FIG. 2 is a side view of a novel bone marrow puncture needle nut in an embodiment of the present invention;

fig. 3 is a side view of a novel bone marrow puncture connecting rod in an embodiment of the present invention;

in the figure, 1-a needle core, 2-a needle body, 3-a plugging piece I, 4-a supporting seat, 5-a groove, 6-a plugging piece II, 7-a connecting rod, 8-a nut, 9-a hollow channel and 10-a handle.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "front" and "rear" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and thus the present invention is considered to be within the scope of the present invention.

The present invention will be described in further detail with reference to the accompanying fig. 1-3.

Example (b): a marrow puncture needle, as shown in fig. 1-3, a supporting seat 4 and a handle 10 mounted on the supporting seat 4, wherein the handle 10 is sleeved on two sides of the supporting seat 4, one side of the supporting seat 4 is provided with a groove 5, the groove 5 is communicated up and down, the bottom opening of the groove 5 is connected with a needle body 2, the needle body 2 is of a hollow cylindrical structure, a needle core 1 is arranged in the needle body 2 in a penetrating way, the puncture end of the needle core 1 can extend out of the needle body 2, the other end of the needle core 1 is connected with a plugging piece I3, a movable plugging piece II6 is arranged in the supporting seat 4, and the plugging piece I3 and the plugging piece II6 can tightly close the groove 5.

Shutoff piece II6 sets up in the inside cavity of supporting seat 4, shutoff piece II6 around both sides be provided with cavity passageway 9, cavity passageway 9 and cavity intercommunication, cavity right side and recess 5 intercommunication, shutoff piece II6 around both sides be connected with the one end of connecting rod 7 respectively, the other end of connecting rod 7 extends cavity passageway 9 and is connected with nut 8. The connecting rod outside is connected the nut 8, through hollow channel 9 removal nut 8 portable shutoff piece 6, or directly movable shutoff piece 6, but shutoff piece 6 shutoff recess 5.

In this embodiment, through the cooperation that sets up nut 8, connecting rod 7, shutoff piece II6, cavity passageway 9, recess 5 isotructures, can avoid checking stylet 1 repeatedly to can improve medical personnel's work efficiency, so the practicality is stronger.

In this embodiment, the plugging member II6 can tightly plug the groove 5, and has the same effect as the plugging member I3 on the stylet 1.

The front and the rear of the plugging piece 6 are provided with connecting rods 7 connected with nuts 8; the connecting rod 7 is a smooth solid cylinder 7.1 and is connected with a screw 7.2 with annular grains on the outer surface, the outer surface of the screw cap 8 is provided with anti-skid grains, and the inner surface of the screw cap 8 is provided with annular grains corresponding to the screw 7.2; the nut 8 protrudes from the surface of the support base 4.

In this embodiment, through being equipped with corresponding annular line on nut 8 and screw rod 7.2, nut 8 can be screwed up on screw rod 7.2, thereby it can be convenient for the operator to remove nut 8 through being equipped with anti-skidding decorative pattern at nut 8 surface and removing shutoff piece 6.

The supporting seat 4 is made of plastic.

In this embodiment, the plugging member II6 can pass through the supporting seat 4 in the sagittal direction through the connecting rod 7 and the hollow channel 9, thereby avoiding the instability.

The inner surface of the hollow channel 9 is smooth, the diameter of the hollow channel is larger than that of the connecting rod 7, and the connecting rod 7 can pass through the hollow channel 9 without resistance by moving the screw cap 8; or the connecting rod 7 of the movable plugging piece 6 can pass through the hollow channel 9 without resistance, the length of the hollow channel 9 in the horizontal direction is that the plugging piece 6 just moves right above the groove 5, and the length of the hollow channel 9 in the vertical direction is that the plugging piece 6 just plugs the groove 5.

In this embodiment, the right end of the hollow passage 9 is arranged at the central axis of the groove 5, and the right end of the hollow passage 9 is provided with a vertically downward turning structure. The groove 5 comprises an upper groove and a lower groove, wherein the upper groove is consistent with the sizes and the shapes of the plugging piece I3 and the plugging piece II6, and can be tightly plugged by the plugging piece I3 and the plugging piece II 6; the size of the lower groove is smaller than that of the upper groove, and the junction of the upper groove and the lower groove is lower than the lower surface of the hollow cavity. The blocking piece 6 can be moved along the hollow channel 9 without resistance to the groove 5 horizontally by moving the screw cap 8, and when the blocking piece is moved right above the groove 5, the blocking piece is moved right below the hollow channel 9, so that the blocking piece 6 blocks the groove 5 tightly.

The bottom of the plugging piece I3 and the bottom of the plugging piece II6 are provided with bulges which have the same structural size with the grooves on the lower part, and the bulges can tightly plug the grooves on the lower part.

The handle 10 is sleeved on the two ends of the outer side of the supporting seat 4.

In this embodiment, cup joint handle 10 in 4 outside both ends of supporting seat, when carrying out the marrow puncture, through rotatory handle 10 for in supporting seat 4 drove needle body 2 and nook closing member 1 forward movement pierce the skin tissue, application of force that can be better can effectively prevent to puncture for a long time simultaneously and the hand fatigue that brings, alleviates patient's painful sense simultaneously, promotes the stability of operation.

The needle core 1 and the needle body 2 are made of stainless steel. In the embodiment, the stainless steel has strong toughness, is not easy to rust and bend, and is easy to break through the bone surface.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. A bone marrow puncture needle, which is characterized in that: including supporting seat (4) and install handle (10) on supporting seat (4), supporting seat (4) one side is provided with recess (5), link up from top to bottom recess (5), recess (5) bottom opening is in needle body (2) and connects, needle body (2) are the hollow cylinder structure, wear to be equipped with nook closing member (1) in needle body (2), the puncture end of nook closing member (1) can extend to outside needle body (2), the other end and the shutoff piece I (3) of nook closing member (1), be provided with mobilizable shutoff piece II (6) in supporting seat (4), shutoff piece I (3) and shutoff piece II (6) can close closed groove (5).

2. The bone marrow puncture needle according to claim 1, characterized in that: plugging member II (6) set up in the inside cavity of supporting seat (4), plugging member II (6) around both sides be provided with cavity passageway (9), cavity passageway (9) and cavity intercommunication, cavity right side and recess (5) intercommunication, plugging member II (6) around both sides be connected with the one end of connecting rod (7) respectively, the other end of connecting rod (7) extends cavity passageway (9) and is connected with nut (8).

3. A bone marrow puncture needle according to claim 2, characterized in that: the right end of the hollow channel (9) is arranged at the central axis of the groove (5), and a vertical downward turning structure is arranged at the right end of the hollow channel (9).

4. A bone marrow puncture needle according to claim 2, characterized in that: the connecting rod (7) is a smooth solid cylinder (7.1) and is connected with a screw (7.2) with annular grains on the outer surface; the outer surface of the screw cap (8) is provided with anti-slip patterns, and the inner surface is provided with annular grains corresponding to the screw rod (7.2); the diameter of the screw cap (8) is larger than that of the screw rod (7.2); the screw cap (8) protrudes out of the surface of the supporting seat (4).

5. A bone marrow puncture needle according to claim 2, characterized in that: the inner surface of the hollow channel (9) is smooth, the diameter of the hollow channel is larger than that of the connecting rod (7), and the connecting rod (7) passes through the hollow channel (9) without resistance through the screw cap (8).

6. The bone marrow puncture needle according to claim 2, characterized in that: the groove (5) comprises an upper groove and a lower groove, wherein the upper groove is consistent with the sizes and the shapes of the plugging piece I (3) and the plugging piece II (6) and can be tightly plugged by the plugging piece I (3) and the plugging piece II (6); the size of the lower groove is smaller than that of the upper groove, and the junction of the upper groove and the lower groove is lower than the lower surface of the hollow cavity.

7. A bone marrow puncture needle according to claim 6, characterized in that: the bottom of the plugging piece I (3) and the bottom of the plugging piece II (6) are provided with bulges which have the same structural size with the grooves on the lower part, and the bulges can tightly plug the grooves on the lower part.

8. A bone marrow puncture needle according to claim 1, characterized in that: the supporting seat (4) is made of plastic.

9. The bone marrow puncture needle according to claim 1, characterized in that: the needle core (1) and the needle body (2) are both made of stainless steel.

10. The bone marrow puncture needle according to claim 1, characterized in that: the grip (10) is made of plastic materials and is sleeved on the outer surfaces of the two ends of the supporting seat (4).