CN216060591U

CN216060591U - Bone marrow puncture needle for hematology department

Info

Publication number: CN216060591U
Application number: CN202122209510.8U
Authority: CN
Inventors: 唐婕; 张晓�
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-18
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a hematology department marrow puncture needle in the technical field of medical instruments, which comprises an outer barrel, wherein an inner barrel is arranged on the lower end face of an inner cavity of the outer barrel in a penetrating manner, the left end of the inner barrel extends to the left side of the outer barrel in a penetrating manner, a needle head is arranged on the left end face of the inner barrel, a fixing plate is uniformly arranged on the left side of the outer wall of the outer barrel, a sucker is fixedly connected to the tail end of the left end face of the fixing plate, strip-shaped grooves are formed in the front side and the rear side of an outer ring of the outer barrel, connecting blocks are arranged on the front side and the rear side of the outer wall of the inner barrel, a locking part is arranged on the upper side and the lower side of the outer wall of the annular ring in a penetrating manner, a pull rod is arranged in the inner barrel, the pull rod sequentially penetrates through the right end face of the inner barrel and the right end face of the outer barrel from left to the right side of the outer barrel, and a handle is fixedly connected to the tail end of the pull rod.

Description

Bone marrow puncture needle for hematology department

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a bone marrow puncture needle for hematology department.

Background

The marrow puncture adopts a common diagnosis technology of marrow liquid, is suitable for diagnosis, differential diagnosis and treatment follow-up of various blood diseases, generally fixes a marrow puncture needle fixer on a proper length, fixes the skin of a puncture part by a left thumb and a forefinger, vertically punctures on the bone surface by holding the needle by the right hand, rotates left and right after the puncture needle contacts the bone, slowly drills the bone, indicates that the bone enters a marrow cavity when the resistance is lost and the puncture needle is fixed in the bone, the prior puncture needle is inconvenient to guide and position the puncture position when in use, is easy to be unstably taken in the puncture process, cannot reach the required position, cannot extend the needle head, needs to replace a longer needle head for puncture, increases the range of the wound of a patient, can drill the puncture needle by consuming great strength, lacks an auxiliary structure, reduces the use effect, therefore, we propose a puncture needle for bone marrow in hematology department.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bone marrow puncture needle for hematology department, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a hematology department marrow puncture needle, includes the urceolus, the terminal surface runs through under the urceolus inner chamber and is provided with the inner tube, the inner tube left end runs through and extends to the urceolus left side, the inner tube left end face is equipped with the syringe needle, urceolus outer wall left side evenly is equipped with the fixed plate, the terminal fixedly connected with sucking disc of fixed plate left end face, both sides all are equipped with the bar groove around the urceolus outer lane, both sides all are equipped with the connecting block around the inner tube outer wall, the connecting block end runs through the bar groove, the terminal fixedly connected with annular ring of connecting block, both sides all run through about the annular ring outer wall and are provided with the retaining member, the inner tube inner chamber is equipped with the pull rod, the pull rod from left to right runs through inner tube right-hand member and urceolus right-hand member end face to urceolus right side in proper order, the terminal fixedly connected with handle of pull rod.

Preferably, the inner cavity of the inner cylinder is transversely provided with a sealing plug, the outer ring of the sealing plug is provided with a rubber pad, the outer wall of the rubber pad is attached to the inner wall of the inner cavity of the inner cylinder, and the center of the upper end face of the sealing plug is fixedly connected with a pull rod.

Preferably, the front side and the rear side of the upper part of the outer wall of the inner barrel are fixedly connected with supporting frames, the inner cavity of each supporting frame is movably connected with a roller, and one end of the outer ring of the roller is attached to the inner wall of the inner cavity of the outer barrel.

Preferably, the annular ring is matched with the outer barrel, a rubber gasket is arranged on the inner wall of the inner cavity of the annular ring, and the inner wall of the rubber gasket is attached to the outer wall of the outer barrel.

Preferably, the needle tip is provided with a beveled insertion portion.

Preferably, the length of the pull rod is larger than that of the outer barrel, and the outer wall of the handle is sleeved with the rubber sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

1. through urceolus, inner tube, bar groove, connecting block, annular ring, retaining member, support frame and gyro wheel, when the syringe needle is extended to needs, can transfer the retaining member, drive the inner tube through the gyro wheel and move down, connecting block and annular ring cooperation guarantee that inner tube and syringe needle can quick downstream, have spacing guide effect, avoid the syringe needle to take place the skew.

2. Through sealing plug, pull rod, handle, fixed plate and sucking disc, the sealing plug guarantees that the inner tube leakproofness is good, and pull rod and handle cooperation guarantee that the handle can stimulate the pull rod fast, when puncturing, support through the sucking disc, ensure the perpendicular needle insertion of syringe needle, guaranteed the precision at puncture position again to reach the accurate purpose in location.

Drawings

FIG. 1 is a schematic view of the structure of a bone marrow puncture needle for hematology department according to the present invention;

fig. 2 is a right sectional view of the bone marrow puncture needle of the hematology department.

In the figure: 1. an outer cylinder; 2. an inner barrel; 3. a needle head; 4. a fixing plate; 5. a suction cup; 6. a pull rod; 7. a handle; 8. a strip-shaped groove; 9. connecting blocks; 10. an annular ring; 11. a locking member; 12. a sealing plug; 13. a support frame; 14. and a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a hematology department marrow puncture needle, including urceolus 1, the terminal surface runs through under 1 inner chamber of urceolus and is provided with

inner tube

2, 2 left ends of inner tube run through and extend to 1 left side of urceolus, 2 left end faces of inner tube are equipped with syringe needle 3, 1 outer wall left side of urceolus evenly is equipped with

fixed plate

4, 4 end fixedly connected with sucking discs 5 of fixed plate, both sides all are equipped with bar groove 8 around the 1 outer lane of urceolus, both sides all are equipped with connecting block 9 around 2 outer walls of inner tube, 9 end run through bar groove 8 of connecting block, 9 end fixedly connected with rings of connecting block 10, fixed plate 4 and sucking discs 5 all are equipped with four groups, and four fixed plate 4 of group and sucking discs 5 are the setting of annular array in 1 outer lane of urceolus, it is stable when guaranteeing the puncture.

In this embodiment, referring to fig. 1, locking members 11 are respectively disposed on upper and lower sides of an outer wall of the annular ring 10 in a penetrating manner, a pull rod 6 is disposed in an inner cavity of the inner cylinder 2, the pull rod 6 sequentially penetrates through a right end face of the inner cylinder 2 and a right end face of the outer cylinder 1 from left to right to a right side of the outer cylinder 1, a handle 7 is fixedly connected to a tail end of the pull rod 6, and the handle 7 is welded to the tail end of the pull rod 6 to ensure stability of the handle 7.

In this embodiment, please refer to fig. 2, a sealing plug 12 is transversely disposed in an inner cavity of the inner cylinder 2, a rubber pad is disposed on an outer ring of the sealing plug 12, an outer wall of the rubber pad is attached to an inner wall of the inner cavity of the inner cylinder 2, a pull rod 6 is fixedly connected to a center of an upper end surface of the sealing plug 12, a middle portion of the sealing plug 12 is of a steel structure, and the middle portion of the sealing plug 12 is welded to one end of the pull rod 6, so that the pull rod 6 is ensured to be stable, the rubber pad ensures that the inner cavity of the inner cylinder 2 has good sealing performance, and the marrow fluid can be normally taken out.

In this embodiment, referring to fig. 1, an annular ring 10 is matched with an outer cylinder 1, a rubber gasket is arranged on an inner wall of an inner cavity of the annular ring 10, an inner wall of the rubber gasket is attached to an outer wall of the outer cylinder 1, the annular ring 10 is matched with a connecting block 9, a guiding effect is achieved, it is ensured that an inner cylinder 2 is stable and cannot shake, and the rubber gasket ensures that the annular ring 10 is stable.

In this embodiment, referring to fig. 1, the end of the needle 3 is provided with an inclined insertion portion, so that the needle 3 can be conveniently and rapidly inserted into bone marrow, and the use efficiency is improved.

In this embodiment, referring to fig. 1, the length of the pull rod 6 is greater than that of the outer cylinder 1, and the outer wall of the handle 7 is sleeved with a rubber sleeve, so that when the inner cylinder 2 is located at the bottommost portion of the inner cavity of the outer cylinder 1, the pull rod 6 can be pulled normally, and the rubber sleeve ensures that the hands of a user cannot slip or be frayed.

Example 2

Referring to fig. b, the embodiment is different from the first embodiment in that: the equal fixedly connected with support frame 13 in both sides around inner tube 2 outer wall upper portion, support frame 13 inner chamber swing joint has gyro wheel 14, and gyro wheel 14 outer lane one end is laminated with 1 inner chamber inner wall of urceolus mutually, and connecting block 9 and annular ring 10 guarantee that inner tube 2 lower part is stable, and support frame 13 and gyro wheel 14 cooperation guarantee that inner tube 2 upper portion is stable.

The working principle is as follows: during the use, according to the operation requirement, extension syringe needle 3, locking piece 11 can be transferred and loosen, drive inner tube 2 downstream through gyro wheel 14, connecting block 9 and the cooperation of annular ring 10, guarantee that inner tube 2 and syringe needle 3 can quick downstream, spacing guide effect has, avoid the syringe needle to take place the skew, reuse locking piece 11 locking annular ring 10, it is suitable to guarantee inner tube 2 length, insert inside the skin with syringe needle 3 again, guarantee that the sucking disc holds patient's skin, guarantee to ensure that syringe needle 3 advances the needle perpendicularly, the precision at puncture position has been guaranteed again, utilize hand pulling handle 7, handle 7 drives pull rod 6 and upwards must, pull rod 6 drives sealing plug 12 upwards, guarantee to take out bone marrow liquid.

Claims

1. A hematology department bone marrow puncture needle comprises an outer cylinder (1), and is characterized in that: the inner cylinder (2) penetrates through the inner cavity of the outer cylinder (1), the left end of the inner cylinder (2) penetrates through the left side of the outer cylinder (1), a needle (3) is arranged on the left end face of the inner cylinder (2), a fixing plate (4) is uniformly arranged on the left side of the outer wall of the outer cylinder (1), a sucking disc (5) is fixedly connected to the left end face of the fixing plate (4), strip-shaped grooves (8) are formed in the front side and the rear side of the outer ring of the outer cylinder (1), connecting blocks (9) are arranged on the front side and the rear side of the outer wall of the inner cylinder (2), the tail end of each connecting block (9) penetrates through the strip-shaped grooves (8), an annular ring (10) is fixedly connected to the tail end of each connecting block (9), locking parts (11) are arranged on the upper side and the lower side of the outer wall of the annular ring (10) in a penetrating manner, a pull rod (6) is arranged in the inner cavity of the inner cylinder (2), and the right end face of the outer cylinder (1) sequentially penetrate through the right side of the outer cylinder (1), the tail end of the pull rod (6) is fixedly connected with a handle (7).

2. A hematological bone marrow puncture needle according to claim 1, wherein: the inner tube (2) inner chamber transversely is equipped with sealing plug (12), sealing plug (12) outer lane is equipped with the rubber pad, and the rubber pad outer wall laminates with inner tube (2) inner chamber inner wall mutually, sealing plug (12) up end center department fixedly connected with pull rod (6).

3. A hematological bone marrow puncture needle according to claim 1, wherein: equal fixedly connected with support frame (13) in both sides around inner tube (2) outer wall upper portion, support frame (13) inner chamber swing joint has gyro wheel (14), gyro wheel (14) outer lane one end is laminated with urceolus (1) inner chamber inner wall mutually.

4. A hematological bone marrow puncture needle according to claim 1, wherein: annular ring (10) and urceolus (1) phase-match, annular ring (10) inner chamber inner wall is equipped with the rubber packing ring, and the rubber packing ring inner wall laminates with urceolus (1) outer wall mutually.

5. A hematological bone marrow puncture needle according to claim 1, wherein: the tail end of the needle head (3) is provided with an inclined plane insertion part.

6. A hematological bone marrow puncture needle according to claim 1, wherein: the length of the pull rod (6) is greater than that of the outer barrel (1), and the outer wall of the handle (7) is sleeved with a rubber sleeve.