CN210784582U

CN210784582U - Stem cell puncture extraction element

Info

Publication number: CN210784582U
Application number: CN201921099899.1U
Authority: CN
Inventors: 张海心
Original assignee: Ruitai Stem Cell Center Shenyang Co ltd
Current assignee: Ruitai Stem Cell Center Shenyang Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-06-19
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a stem cell extraction element that punctures, including outer sleeve, inner skleeve, push down screw rod and syringe needle, the fixed surface of outer sleeve is connected with the handle, the inside of outer sleeve is equipped with spout and lower spout, the inside of going up the spout is equipped with sliding connection's inner skleeve, the center of inner skleeve is equipped with threaded connection's push down screw rod, the inside of spout is equipped with sliding connection's syringe needle down, the top fixedly connected with slider of syringe needle, the top of slider is connected with the bottom contact of push down screw rod, compression spring has been cup jointed on the surface of syringe needle, compression spring's upper end and slider contact are connected and the lower extreme is connected with the outer sleeve contact. The utility model discloses a be equipped with threaded inner skleeve in outer telescopic inside, conveniently after medical staff draws stem cell, utilize compression spring to reset fast, avoid simple screw rod structure to reset slow condition, improve medical staff's convenience that uses stem cell extraction element.

Description

Stem cell puncture extraction element

Technical Field

The utility model relates to the technical field of medical equipment, specifically a stem cell extraction element that punctures.

Background

Patent application No. 201820808302.5 discloses "a stem cell puncture extractor, including cylinder, needle body, pressing piece, the inside first hole that is equipped with of cylinder, needle body and pressing piece have been inserted to the hole, and pressing piece and needle body contact locate the needle body directly over, the cylinder lower part is equipped with the second hole that the diameter is less than first hole, and cylinder upper portion is equipped with the thread groove, pressing piece is from last to including knob, locking portion, screw thread portion, pressing portion down, locking portion diameter is less than knob and screw thread portion diameter, is equipped with the ratchet in the locking portion, screw thread portion and the thread groove threaded connection on the cylinder, needle body upper portion diameter is greater than needle body lower part diameter, and the lower part cover has the spring, the spring is located between bottom surface under needle body upper portion and the cylinder, the upper surface of cylinder still is equipped with the pit, has inserted the rotation axis on the pit, and the rotation axis, the rotary shaft is provided with a pawl which can rotate around the rotary shaft, the shape of the pit is matched with that of the pawl, the operation is simple and convenient, the time and the labor are saved when the hematopoietic stem cells are extracted, and the working difficulty of medical staff is reduced.

However, the pressing piece is connected with the needle cylinder firmly due to the fact that the pressing piece is connected with the thread groove of the thread part and the thread groove of the inner wall of the needle cylinder in a screwing mode and the thread connection is too deep, and the pressing piece cannot reset quickly or even is blocked and cannot reset under the pushing of the spring, so that inconvenience is brought to the use of medical staff. For this reason, a new technical solution needs to be designed for solution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stem cell extraction element that punctures is equipped with threaded inner skleeve through the inside of outer muff, and the convenience utilizes compression spring to reset fast after medical staff draws stem cell, avoids simple screw rod structure to reset slow condition, improves medical staff's convenience that uses stem cell extraction element.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stem cell extraction element that punctures, includes outer sleeve, inner skleeve, pushes down screw rod and syringe needle, the fixed surface of outer sleeve is connected with the handle, the inside of outer sleeve is equipped with spout and lower spout, the inside of going up the spout is equipped with sliding connection's inner skleeve, the center of inner skleeve is equipped with threaded connection's the screw rod that pushes down, the inside of spout is equipped with sliding connection's syringe needle down, the top fixedly connected with slider of syringe needle, the top of slider is connected with the bottom contact of pushing down the screw rod, compression spring has been cup jointed on the surface of syringe needle, compression spring's upper end and slider contact are connected and the lower extreme is connected with the outer.

As an improvement of the technical scheme, the top of the downward pressing screw rod is fixedly connected with a rotating wheel, and the surface of the rotating wheel is provided with holding grooves distributed annularly.

As an improvement of the technical scheme, the inner walls of the upper sliding groove and the lower sliding groove are fixedly connected with limiting strips, the side walls of the inner sleeve and the sliding block are provided with rectangular grooves, and the rectangular grooves are buckled on the surfaces of the limiting strips and are in sliding connection with the limiting strips.

As an improvement of the technical scheme, the surface of the outer sleeve is provided with a lock catch, the lock catch is rotatably connected with the edge of the outer sleeve, and the end part of the lock catch extends into the outer sleeve and is in contact connection with the edge of the inner sleeve.

As an improvement of the technical scheme, the surface of the lock catch is provided with an arc shifting block which is in rotating connection, and the arc shifting block is in sliding connection with the surface of the outer sleeve.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a be equipped with threaded inner skleeve in outer telescopic inside, conveniently after medical staff draws stem cell, utilize compression spring to reset fast, avoid simple screw rod structure to reset slow condition, improve medical staff's convenience that uses stem cell extraction element.

2. The utility model discloses a be equipped with the hasp of arc shifting block on outer telescopic surface, the convenience is fixed the inner skleeve in the upper chute, and the convenience is fixed the inner skleeve when promoting syringe needle downstream, and when drawing the completion, the inner skleeve is the upward movement together with the screw rod that pushes down simultaneously to make the syringe needle reset fast.

Drawings

FIG. 1 is a schematic view of the internal structure of the stem cell puncturing and extracting device of the present invention;

FIG. 2 is a schematic sectional view of the A-A of the present invention;

fig. 3 is a schematic view of the top view structure of the rotary wheel of the present invention.

In the figure: the novel syringe comprises an outer sleeve-1, an inner sleeve-2, a downward pressing screw-3, a needle-4, a handle-5, an upper chute-6, a lower chute-7, a slide block-8, a compression spring-9, a rotating wheel-10, a holding groove-11, a limiting strip-12, a rectangular groove-13, a lock catch-14 and an arc shifting block-15.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to fig. 1-3, the present invention provides a technical solution: the utility model provides a stem cell extraction element that punctures, includes outer sleeve 1, inner skleeve 2, pushes down screw rod 3 and syringe needle 4, the fixed surface of outer sleeve 1 is connected with handle 5, the inside of outer sleeve 1 is equipped with spout 6 and lower chute 7, the inside of going up spout 6 is equipped with sliding connection's inner skleeve 2, the center of inner skleeve 2 is equipped with threaded connection's the screw rod 3 that pushes down, the inside of lower chute 7 is equipped with sliding connection's syringe needle 4, the top fixedly connected with slider 8 of syringe needle 4, the top of slider 8 is connected with the bottom contact of pushing down screw rod 3, compression spring 9 has been cup jointed on the surface of syringe needle 4, compression spring 9's upper end and slider 8 contact are connected and the lower extreme is connected with the contact of outer sleeve 1.

In a further improvement, as shown in fig. 3, a rotating wheel 10 is fixedly connected to the top of the down-pressing screw 3, gripping grooves 11 are formed in the surface of the rotating wheel 10 and distributed in an annular shape, and the rotating wheel 10 with the gripping grooves 11 is fixedly connected to the top of the down-pressing screw 3, so that the stability of the medical staff in gripping the rotating wheel 10 is improved, and the down-pressing screw 3 is convenient to rotate.

Further improved, as shown in fig. 1, the inner wall fixedly connected with limit strip 12 of the upper chute 6 and the lower chute 7, rectangular channel 13 has been seted up to the lateral wall of inner skleeve 2 and slider 8, rectangular channel 13 lock joint at limit strip 12 the surface and with limit strip 12 sliding connection, through being equipped with limit strip 12 in the inside of upper chute 6 and lower chute 7, conveniently restrict inner sleeve 2 and slider 8, avoid slider 8 and inner skleeve 2 to take place to rotate at outer sleeve 1.

In a further improvement, as shown in fig. 1-2, a lock catch 14 is arranged on the surface of the outer sleeve 1, the lock catch 14 is rotatably connected with the edge of the outer sleeve 1, the end of the lock catch 14 extends into the outer sleeve 1 and is in contact connection with the edge of the inner sleeve 2, and the lock catch 14 which is rotatably connected is arranged on the surface of the outer sleeve 1, so that the inner sleeve 2 is conveniently fixed, and meanwhile, the screw 3 and the inner sleeve 2 can be conveniently pressed down to move upwards quickly.

In a specific improvement, as shown in fig. 1-2, an arc-shaped shifting block 15 is arranged on the surface of the lock catch 14 in a rotating connection, the arc-shaped shifting block 15 is in sliding connection with the surface of the outer sleeve 1, and the arc-shaped shifting block 15 is arranged on the surface of the lock catch 14 in a rotating connection, so that the medical staff can conveniently shift the lock catch when using the medical staff, and the angle of the lock catch 14 can be controlled.

The utility model discloses an outer sleeve-1, inner skleeve-2, push down screw-3, syringe needle-4, handle-5, go up chute-6, lower chute-7, slider-8, compression spring-9, running wheel-10, grip groove-11, spacing-12, rectangular channel-13, hasp-14, arc shifting block-15, the part is general standard component or the part that technical staff in this field know, its structure and principle all can all be known or can be known through conventional experimental method through the technical manual for this technical staff, the utility model discloses through be equipped with threaded inner skleeve 2 in the inside of outer skleeve 1, convenient after medical staff draws the inner skleeve stem cell, utilize compression spring 9 to reset fast, avoid the slow condition that resets of pure screw rod structure, improve medical staff's convenience of using stem cell extraction element.

When the utility model is used, the medical staff holds the handle 5 and moves the extraction device to the position for extracting stem cells, and moves the arc-shaped shifting block 15 to make the lock catch 14 and the spacing strip 12 dislocate, the inner sleeve 2 is fixed, the lower screw 3 and the inner sleeve 2 are rotated by rotating the rotating wheel 10 at the top of the lower screw 3, thereby gradually moving the downward screw 3 and simultaneously pushing the slide block 8 to slide downward along the limit strip 12, thereby pushing the needle head 4 to extend outwards to facilitate puncture, after the stem cells are extracted, the medical staff can make the lock catch 14 align with the limit strip 12 by pulling the lock catch 14, therefore, the end part of the lock catch 14 is embedded into the rectangular groove 13 of the inner sleeve 2, the reaction force of the compression spring 9 pushes the needle head 4, the sliding block 8, the inner sleeve 2 and the downward pressing screw rod 3 to be upwards bounced, the needle head 4 is conveniently and quickly retracted, and the use convenience of medical staff is improved.

The product protected by the scheme is put into practical production and application at present, and particularly, the application of the product on medical instruments is successful to a certain extent, so that the technical scheme of the product is obviously proved to be beneficial, meets social requirements, and is suitable for batch production and popularization and use.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a stem cell extraction element that punctures, includes outer sleeve (1), inner skleeve (2), pushes down screw rod (3) and syringe needle (4), its characterized in that: the fixed surface of outer sleeve (1) is connected with handle (5), the inside of outer sleeve (1) is equipped with spout (6) and lower chute (7), the inside of going up spout (6) is equipped with sliding connection's inner skleeve (2), the center of inner skleeve (2) is equipped with threaded connection's pushing down screw rod (3), the inside of lower spout (7) is equipped with sliding connection's syringe needle (4), the top fixedly connected with slider (8) of syringe needle (4), the top of slider (8) is connected with the bottom contact of pushing down screw rod (3), compression spring (9) have been cup jointed on the surface of syringe needle (4), the upper end and the slider (8) contact connection and the lower extreme of compression spring (9) are connected with outer sleeve (1) contact.

2. The stem cell puncturing and extracting device according to claim 1, wherein: the top of the pressing screw rod (3) is fixedly connected with a rotating wheel (10), and the surface of the rotating wheel (10) is provided with holding grooves (11) distributed annularly.

3. The stem cell puncturing and extracting device according to claim 1, wherein: go up the inner wall fixedly connected with spacing (12) of spout (6) and gliding groove (7), rectangular channel (13) have been seted up to the lateral wall of inner skleeve (2) and slider (8), rectangular channel (13) lock joint on the surface of spacing (12) and with spacing (12) sliding connection.

4. The stem cell puncturing and extracting device according to claim 1, wherein: the surface of outer sleeve (1) is equipped with hasp (14), hasp (14) are rotated with the edge of outer sleeve (1) and are connected, the tip of hasp (14) stretches into in outer sleeve (1) and is connected with the edge contact of inner skleeve (2).

5. The stem cell puncturing and extracting device according to claim 4, wherein: the surface of the lock catch (14) is provided with an arc shifting block (15) which is connected in a rotating mode, and the arc shifting block (15) is connected with the surface of the outer sleeve (1) in a sliding mode.