CN215461266U

CN215461266U - Guide needle

Info

Publication number: CN215461266U
Application number: CN202121732796.1U
Authority: CN
Inventors: 王海峰; 姜红军
Original assignee: TIANJIN XIANGYUE MEDICAL EQUIPMENT CO Ltd
Current assignee: TIANJIN XIANGYUE MEDICAL EQUIPMENT CO Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-11
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to the technical field of medical instruments, in particular to a guide needle which comprises a needle body, a wire feeding device and a wire guide device, wherein the needle body comprises a needle handle and a needle head, the needle head is mutually connected with the needle handle through a connecting piece, the wire feeding device is connected to one side of the needle handle, the wire feeding device comprises a guide wire inlet pipe, a wire feeding cavity is formed in the guide wire inlet pipe, the wire guide device is connected to the lower end of the wire feeding device, the wire guide device comprises a wire feeding guide pipe, a guide rod and a handle, one end of the guide rod is mutually connected with the handle, and the other end of the guide rod is inserted into the wire feeding guide pipe. The guide wire device is arranged, so that the guide wire can be fed in an auxiliary manner, the technical problem that the guide wire is easy to clamp in a gap of a wire feeding cavity of the guide wire device is solved, the guide wire can work smoothly, and the guide wire device has the advantages of being simple to use, labor-saving, safe and reliable.

Description

Guide needle

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a guide needle.

Background

Currently, with the rapid development of medical technology, guide needles are widely used in clinical applications, and in the medical field, before a central venous catheter or a hemodialysis catheter is placed into a human body, a guide wire needs to be guided by the guide needle and placed into the human body, so that the central venous catheter or the hemodialysis catheter can be successfully placed into the human body under the guidance of the guide wire.

However, the existing guide needle has the following defects:

1. the existing guide needle is usually only provided with one guide needle tube, a gap exists between the guide wire and the guide needle tube, and when the guide wire with a small diameter passes through the guide needle tube, the guide wire is easy to block in the gap, so that the guide wire cannot pass through the gap.

2. The guide wire of the existing guide needle is usually fed through the needle point bevel opening of the guide needle and then punctured, so that the problem of inconvenience in placing the guide wire exists, and the needle head is easily polluted when the guide wire is placed.

The present invention therefore provides an introducer needle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The guide needle is provided with the guide wire device, so that the guide wire can be fed in an auxiliary manner, the technical problem that the guide wire is easy to clamp in a gap of a wire feeding cavity of the guide wire is solved, the guide wire is ensured to work smoothly, and the guide needle has the beneficial effects of simplicity in use, labor saving, safety and reliability.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a guide needle, includes the needle body, advances a device and a wire guide device, the needle body is including needle handle and syringe needle, and the syringe needle passes through interconnect between connecting piece and the needle handle, the wire guide device is connected one side of needle handle, advance a device and connect wire guide device's upper end advances a device including the guide wire admission pipe, is formed with into a chamber in the guide wire admission pipe, wire guide device is including advancing a guiding tube, guide bar and handle, interconnect between the one end of guide bar and the handle, the other end of guide bar insert extremely advance the inside of a guiding tube.

Furthermore, the wire feeding device also comprises a wire feeding pipe and a lead-in pipe, wherein one end of the wire feeding pipe is connected with the guide wire feeding pipe, and the other end of the wire feeding pipe is connected with the lead-in pipe.

Furthermore, an organic whole is connected with connecting portion on the syringe needle, the syringe needle pass through connecting portion with interconnect between the connecting piece.

Further, the connecting piece adopts any one of a threaded pipe or a connecting block.

Furthermore, the tail end of the needle head is provided with a needle point, and the needle point is provided with an inclined opening.

Furthermore, the needle head is provided with scale marks, and the minimum scale interval of the scale marks is 1 mm. The utility model has the advantages that: the utility model provides a guide needle, which is provided with a wire feeding device, wherein before guide wires work, guide wires can enter a wire feeding cavity in a wire feeding guide tube through a wire feeding tube in the wire feeding device, and the guide wires can enter a needle head through the wire feeding cavity, so that the wire feeding is convenient, the technical problem that the needle head is easily polluted when the guide wires are placed is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

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

FIG. 2 is a schematic view of the exploded structure of the needle body of the present invention;

FIG. 3 is a schematic sectional view showing a connecting member according to embodiment 4 of the present invention;

wherein:

1. a needle handle; 2. A needle head; 3. A connecting member;

4. a wire inlet cavity; 5. Feeding a guide pipe; 6. Guiding a wire into the tube;

7. a guide rod; 8. A handle; 9. A wire feeding pipe;

10. a guide wire; 11. An introducing pipe; 12. Scale lines;

13. a connecting portion; 14. A needle tip; 15. A compression block;

16. connecting blocks; 17. A baffle plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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, and 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

FIG. 1 is a schematic structural view of the present invention, FIG. 2 is a schematic exploded structural view of a needle body of the present invention, the guiding needle as shown in fig. 1 and fig. 2 comprises a needle body, a thread feeding device and a thread guiding device, wherein the needle body comprises a needle handle 1 and a needle head 2, the needle head 2 is connected with the needle handle 1 through a connecting piece 3, the silk feeding device is connected with one side of the needle handle 1 and comprises a guide silk inlet pipe 6, be formed with into silk chamber 4 in guide wire admission pipe 6, the wire device is including advancing silk guide tube 5, guide bar 7 and handle 8, interconnect between the one end of guide bar 7 and the handle 8, the other end of guide bar 7 insert extremely advance the inside of silk guide tube 5, guide bar 7 can insert to advancing in the silk guide tube 5 through handle 8, has played the effect of advancing the silk to advancing the supplementary silk of guide wire 10 in the silk chamber 4.

Example 2:

fig. 1 is a schematic structural view of the present invention, fig. 2 is a schematic explosion structural view of a needle body of the present invention, such as the guide needle shown in fig. 1 and fig. 2, the wire feeding device further includes a wire feeding tube 9 and a guiding tube 11, one end of the wire feeding tube 9 is connected to the guiding wire feeding tube 6, the other end of the wire feeding tube 9 is connected to the guiding tube 11, and the guiding wire 10 can enter the wire feeding cavity 4 through the guiding tube 11 and the wire feeding tube 9, so that the wire feeding is convenient, and the technical problem that the needle head 2 is easily contaminated when the guiding wire 10 is placed is solved.

Example 3:

fig. 1 is a schematic structural view of the present invention, fig. 2 is a schematic exploded structural view of a needle body of the present invention, such as the guide needle shown in fig. 1 and fig. 2, a connection portion 13 is integrally connected to a needle head 2, the connection portion 13 is of an external thread structure, the needle head 2 is screwed to a connection member 3 through the connection portion 13 by means of threads, the connection member 3 is a threaded tube, the connection member 3 has internal threads and external threads, the needle handle 1 has internal threads inside, and the connection member 3 is screwed to the needle handle 1 by means of threads, which has an advantage of convenient detachment.

Example 4:

fig. 3 is a schematic cross-sectional structure diagram of a connecting piece 3, as shown in fig. 3, the connecting piece 3 adopts a connecting block 16, the connecting block 16 is connected inside a needle handle 1, the connecting block 16 is connected with the needle handle 1 through a thread, a connecting portion 13 of a guide needle is fixedly connected with the connecting block 16, one side of the connecting block 16 is provided with a baffle 17, the baffle 17 is tightly attached to the connecting block 16, the baffle 17 is fixedly connected with the inner wall of the needle handle 1, the other side of the connecting block 16 is provided with a pressing block 15, the pressing block 15 is positioned inside the needle handle 1, the pressing block 15 is screwed with the needle handle 1 through a thread, a gap is left between the pressing block 15 and the needle head 2, the pressing block 15 is clamped with the connecting block 16, the needle head 2 in the utility model can also be installed inside the needle handle 1 through the connecting block 16, the pressing block 15 plays a role of firmly connecting the needle head 2 with the needle handle 1, the problem of the syringe needle 2 drops easily because of being connected firmly between syringe needle 2 and needle handle 1 is solved.

Example 4:

fig. 1 is a schematic structural view of the present invention, fig. 2 is a schematic exploded structural view of a needle body of the present invention, and as shown in fig. 1 and fig. 2, a needle tip 14 is provided at the tail end of a needle head 2, an oblique opening is provided on the needle tip 14, scale marks 12 are provided on the needle head 2, the minimum scale interval of the scale marks 12 is 1mm, and the scale marks 12 are provided on the needle head 2 of the present invention, so that medical personnel can measure the depth of the guided needle body inserted into the affected part of a patient according to the scale marks 12, and the use is convenient.

The working mode is as follows: the utility model provides a guide needle, when in use, a guide wire 10 can enter a wire inlet pipe 9 through an introducing pipe 11, the utility model is provided with a guide wire device, the guide wire device comprises a guide rod 7 and a handle 8, the guide rod 7 can be inserted into the wire inlet guide tube 5 through the handle 8, the guide wire 10 in the wire inlet cavity 4 can be assisted in wire feeding, the smooth proceeding of the guide wire work can be ensured, the needle head 2 is provided with scale marks 12, can lead the medical staff to conveniently use the puncture guiding needle, when the doctor controls the needle head 2 of the puncture guiding needle to be inserted into the human tissue, the change of the scale value on the needle head 2 can be observed, so that the medical staff can measure the depth of the guide needle body inserted into the affected part of the patient according to the scale mark 12.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a guide needle, includes the needle body, advances a device and a wire guide device, its characterized in that, the needle body is including needle handle (1) and syringe needle (2), and interconnect between syringe needle (2) pass through connecting piece (3) and needle handle (1), the wire guide device is connected one side of needle handle (1), advance a device and connect the upper end of wire guide device advances a device and including guide wire admission pipe (6), is formed with into silk chamber (4) in guide wire admission pipe (6), the wire guide device is including advancing a guide wire guiding tube (5), guide bar (7) and handle (8), interconnect between one end and handle (8) of guide bar (7), the other end of guide bar (7) insert extremely advance the inside of a guide wire guiding tube (5).

2. An introducer needle as set forth in claim 1, wherein: the wire feeding device further comprises a wire feeding pipe (9) and a lead-in pipe (11), one end of the wire feeding pipe (9) is connected with the guide wire inlet pipe (6), and the other end of the wire feeding pipe (9) is connected with the lead-in pipe (11).

3. An introducer needle as set forth in claim 1, wherein: the syringe needle (2) is integrally connected with a connecting part (13), and the syringe needle (2) is connected with the connecting part (3) through the connecting part (13).

4. An introducer needle as set forth in claim 3, wherein: the connecting piece (3) adopts any one of a threaded pipe or a connecting block (16).

5. An introducer needle as set forth in claim 1, wherein: the tail end of the needle head (2) is provided with a needle point (14), and the needle point (14) is provided with an inclined opening.

6. An introducer needle as set forth in claim 1, wherein: the needle head (2) is provided with scale marks (12), and the minimum scale interval of the scale marks (12) is 1 mm.