CN215739341U

CN215739341U - Stem cell puncture extractor

Info

Publication number: CN215739341U
Application number: CN202122202436.7U
Authority: CN
Inventors: 刘燕婷
Original assignee: Individual
Current assignee: Shanghai Sixin Pharmaceutical Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-08
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a stem cell puncture extractor, which relates to the technical field of medical equipment and comprises a needle outer barrel, wherein a hollow tube penetrating through the outer wall of the needle outer barrel is connected inside the needle outer barrel, one end of the hollow tube is connected with a needle head, the other end of the hollow tube is connected with a rack, the inner wall of the hollow tube is connected with a slide bar, a cavity is arranged in the center of the hollow tube, the outer wall of the slide bar is connected with a piston push rod penetrating through the outer wall of the needle outer barrel, and one end of the rack is connected with a first spring. According to the utility model, the gear, the rack and the hollow tube are arranged, the needle head is punctured into the skin, then the gear can be pushed by fingers to rotate, the rack is driven by the gear to move, the hollow tube connected with the rack is driven by the rack to move, the needle head is further driven by the hollow tube to move, and the needle head moves for a small distance by the rotation of the gear, so that the effect of accurately extracting stem cells is achieved, and the problem of too deep penetration caused by unstable force control during puncturing is prevented.

Description

Stem cell puncture extractor

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a stem cell puncture extractor.

Background

The extraction of the hematopoietic stem cells is mainly clinically extracted from bone with dense hematopoietic stem cells, such as sternum or ilium, and the like, a puncture extractor is needed for extracting the hematopoietic stem cells, a needle head penetrates through the bone of a patient, and the hematopoietic stem cells are extracted from the bone so as to facilitate the examination and the corresponding treatment of medical personnel.

Present puncture extractor has medical personnel to carry out manual puncture at present, with the syringe needle puncture into the bone in, not only very troublesome, consume time, increased very big work degree of difficulty for medical personnel moreover, the strength control is not good directly to puncture simultaneously, can lead to thorn too deep to influence the efficiency of puncture.

Disclosure of Invention

The utility model aims to: in order to solve the problem that medical personnel can not master the puncturing strength and depth, a stem cell puncturing extractor is provided.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a stem cell puncture extractor, includes the needle urceolus, the internal connection of needle urceolus has the hollow tube that runs through needle urceolus outer wall, the one end of hollow tube is connected with the syringe needle, the other end of hollow tube is connected with the rack, and the inner wall connection of hollow tube has the slide bar, the central authorities of hollow tube are provided with the cavity, and the outer wall connection of slide bar has the piston push rod who runs through needle urceolus outer wall, the one end of rack is connected with a spring, the inner wall of needle urceolus is located one side of rack and is connected with the gear, the opposite side that the inner wall of needle urceolus is located the rack is provided with the dogtooth, the outer wall connection of rack has a gag lever post, the inner wall connection of a gag lever post has No. two springs, the one end of No. two springs is connected with No. two gag lever posts, the outer wall connection of No. two gag lever posts has the connecting rod.

Preferably, the outer wall of the rack is in contact with the outer wall of the gear, and the rack is meshed with the outer wall of the gear.

Preferably, one end of the sliding rod is connected with a piston, and the piston is tightly attached to the outer wall of the cavity.

Preferably, a sliding groove for the piston push rod to move is arranged at the joint of the hollow tube and the outer wall of the piston push rod, and a sliding groove for the piston push rod to move is also arranged at the joint of the needle outer cylinder and the outer wall of the piston push rod.

Preferably, the outer wall of the hollow tube is matched with the joint of the needle outer barrel, and the top end of the needle outer barrel is provided with a sliding groove matched with the connecting rod.

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

1. according to the utility model, by arranging the gear, the rack and the hollow tube, when stem cells are extracted by puncture, firstly, the needle head is aligned to a part to be punctured, the needle head is punctured into skin, then the gear can be pushed by fingers to rotate, the gear drives the rack to move, the rack moves to drive the hollow tube connected with the rack to move, the hollow tube further drives the needle head to move, and the needle head moves a smaller distance by rotating the gear, so that the effect of accurately extracting the stem cells is achieved, and the problem of over-depth caused by unstable force control during puncture is prevented;

2. according to the utility model, the piston push rod, the slide rod and the cavity are arranged, before extraction, the needle head is immersed in clean water, the piston push rod is pushed, the piston push rod drives the slide rod to move, the slide rod further pulls the piston, so that the clean water is sucked into the cavity, after the stem cells are taken out from a human body, the piston is driven by pushing the piston push rod to slowly extrude the clean water out of the needle head, and the clean water drives the stem cells to flow out of the hole groove of the needle head, so that the effect of conveniently taking out the stem cells from the needle hole is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a schematic view of the connection of the hollow tube and the cavity of the present invention.

In the figure: 1. an outer needle barrel; 2. a needle head; 3. a hollow tube; 4. a piston push rod; 5. a rack; 6. a slide bar; 7. a cavity; 8. a first limiting rod; 9. a convex tooth; 10. a gear; 11. a connecting rod; 12. a first spring; 13. a second limiting rod; 14. and a second spring.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1-3, a stem cell puncture extractor comprises a needle outer cylinder 1, a hollow tube 3 penetrating the outer wall of the needle outer cylinder 1 is connected inside the needle outer cylinder 1, one end of the hollow tube 3 is connected with a needle head 2, the other end of the hollow tube 3 is connected with a rack 5, and the inner wall of hollow tube 3 is connected with slide bar 6, the central authorities of hollow tube 3 are provided with cavity 7, and the outer wall connection of slide bar 6 has piston push rod 4 who runs through 1 outer wall of needle urceolus, the one end of rack 5 is connected with spring 12, the one side that the inner wall of needle urceolus 1 is located rack 5 is connected with gear 10, the opposite side that the inner wall of needle urceolus 1 is located rack 5 is provided with dogtooth 9, the outer wall connection of rack 5 has gag lever post 8 No. one, the inner wall connection of gag lever post 8 has spring 14 No. two, the one end of spring 14 No. two is connected with gag lever post 13 No. two, the outer wall connection of gag lever post 13 has connecting rod 11.

Please refer to fig. 1, the outer wall of the rack 5 contacts the outer wall of the gear 10, and the rack 5 is engaged with the outer wall of the gear 10, so that the gear 10 rotates to drive the rack 5 to move.

Please refer to fig. 1, one end of the sliding rod 6 is connected with a piston, and the piston is tightly attached to the outer wall of the cavity 7, so as to push the sliding rod 6 to drive the piston to suck water into the cavity.

Please refer to fig. 1, a sliding groove for the piston rod 4 to move is disposed at the connection position of the hollow tube 3 and the outer wall of the piston rod 4, and a sliding groove for the piston rod 4 to move is also disposed at the connection position of the needle outer cylinder 1 and the outer wall of the piston rod 4, so as to facilitate the back and forth movement of the piston rod 4.

Please refer to fig. 1, the outer wall of the hollow tube 3 is engaged with the joint of the needle outer cylinder 1, and the top end of the needle outer cylinder 1 is provided with a sliding slot matched with the connecting rod 11 for the connecting rod 11 to move in the needle outer cylinder 1.

The working principle is as follows: when stem cells are extracted by puncture, firstly, a needle head 2 is aligned to a part needing to be punctured, the needle head is punctured into skin, then a gear 10 can be pushed by fingers to rotate, the gear 10 drives a rack 5 to move, the rack 5 moves to drive a hollow tube 3 connected with the rack to move, the hollow tube 3 further drives the needle head 2 to move, the needle head 2 moves a smaller distance through the rotation of the gear 10, so that the effect of accurately extracting the stem cells is achieved, the problem that the stem cells are too deep due to unstable force control in puncture is solved, then a connecting rod 11 is pushed, the connecting rod 11 drives a second limiting rod 13 to move, the second limiting rod 13 enters the first limiting rod 8, the rack 5 and the hollow tube 3 return to the original position under the elastic force action of a first spring 12, before the stem cells are extracted, the needle head 2 is immersed into clear water, a piston push rod 4 is pushed, the piston push rod 4 drives a slide rod 6 to move, the slide bar 6 further pulls the piston to inhale the clear water in cavity 7, take out the back with the stem cell from the human body, drive the piston through promoting piston push rod 4 and slowly extrude the clear water from syringe needle 2, the clear water drives the stem cell and flows out from the hole inslot of syringe needle 2, has played the effect of being convenient for take out the stem cell.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a stem cell extraction of puncturing ware, includes needle urceolus (1), its characterized in that: the needle comprises a needle outer barrel (1), wherein a hollow tube (3) penetrating through the outer wall of the needle outer barrel (1) is connected inside the needle outer barrel (1), one end of the hollow tube (3) is connected with a needle head (2), the other end of the hollow tube (3) is connected with a rack (5), the inner wall of the hollow tube (3) is connected with a slide rod (6), a cavity (7) is formed in the center of the hollow tube (3), the outer wall of the slide rod (6) is connected with a piston push rod (4) penetrating through the outer wall of the needle outer barrel (1), one end of the rack (5) is connected with a first spring (12), one side, located on the rack (5), of the inner wall of the needle outer barrel (1) is connected with a gear (10), a convex tooth (9) is arranged on the other side, located on the rack (5), of the outer wall of the rack (5) is connected with a first limiting rod (8), and the inner wall of the first limiting rod (8) is connected with a second spring (14), one end of the second spring (14) is connected with a second limiting rod (13), and the outer wall of the second limiting rod (13) is connected with a connecting rod (11).

2. The stem cell puncturing extractor of claim 1, wherein: the outer wall of the rack (5) is in contact with the outer wall of the gear (10), and the rack (5) is meshed with the outer wall of the gear (10).

3. The stem cell puncturing extractor of claim 1, wherein: one end of the sliding rod (6) is connected with a piston, and the piston is tightly attached to the outer wall of the cavity (7).

4. The stem cell puncturing extractor of claim 1, wherein: the outer wall junction of hollow tube (3) and piston push rod (4) is provided with the spout that can supply piston push rod (4) to remove, and the outer wall junction of needle urceolus (1) and piston push rod (4) also is provided with the spout that can supply piston push rod (4) to remove.

5. The stem cell puncturing extractor of claim 1, wherein: the outer wall of the hollow tube (3) is matched with the joint of the needle outer cylinder (1), and the top end of the needle outer cylinder (1) is provided with a sliding groove matched with the connecting rod (11).