CN209932871U

CN209932871U - Needle head inner tube

Info

Publication number: CN209932871U
Application number: CN201920577658.7U
Authority: CN
Inventors: 曾勇
Original assignee: Suzhou Yigute Precision Hardware Co Ltd
Current assignee: Suzhou Yigute Precision Hardware Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-14
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a syringe needle inner tube relates to medical instrument technical field, this syringe needle inner tube, including outer tube and inner tube, the one end fixedly connected with syringe needle of inner tube, the other end fixedly connected with fixed disk of inner tube, one side fixedly connected with communicating pipe of fixed disk, the fixed orifices has all been seted up at the both ends of fixed disk, the one end fixedly connected with fixing base of outer tube, the connecting hole has been seted up at the middle part of fixing base, the mounting groove has all been seted up at the both ends of fixing base, is equipped with the installation pole in the mounting groove, the first fastener of one end fixedly connected with of installation pole, the other. This syringe needle inner tube, through setting up fixed disk and communicating pipe, the connection of outer tube and inner tube of being convenient for, when the inner tube that needs to be renewed, only need with the inner tube with be taken off with the fixed disk in company can, avoid extravagant resource, under the effect of installation pole, first fastener, return spring, dead lever and second fastener mutually supporting, made things convenient for the installation and the dismantlement of inner tube.

Description

Needle head inner tube

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a needle head inner tube.

Background

Is a tubular rubber product for medical treatment. Can be divided into two types of external use and internal use. The former is used for conveying various gases and liquids, such as a stethoscope rubber tube, an infusion rubber tube and the like; the latter is commonly called a medical rubber catheter and can be divided into a single-lumen tube and a multi-lumen tube according to the structure. The single cavity tube has only one inner cavity, the multi-cavity tube is used for medical surgery, more than two inner cavities (such as a double-cavity hemostatic catheter, a double-balloon three-cavity tube and the like) are provided, and the multi-cavity catheter is attached with one or two latex balloons to play a role in sealing or pressing. The rubber catheter is a rubber tube inserted into a human body cavity and a blood vessel, and is used for injecting medicine or extracting liquid in the body and determining the opening degree of the cavity. The medical rubber tube is required to have smooth surface, no toxicity, no smell and disinfection resistance. In particular, the hose for internal use must be free of harmful soluble substances (such as lead, cadmium, arsenic, etc.). The medical rubber tube is generally produced by extrusion molding, direct steam vulcanization or molding.

Under the large-scale use of medical rubber tube, partial medical rubber tube need insert the internal use of patient, in order to ensure safety, avoids the patient to be infected, and medical rubber tube is mostly disposable, but can cause a large amount of wasting of resources like this. In order to solve the problems, the utility model provides a needle head inner tube.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a syringe needle inner tube, which solves the problem of resource waste of the existing disposable medical rubber tube.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a needle head inner tube comprises an outer tube and an inner tube, one end of the inner tube is fixedly connected with a needle head, the other end of the inner tube is fixedly connected with a fixed disc, one side of the fixed disk is fixedly connected with a communicating pipe, both ends of the fixed disk are provided with fixed holes, one end of the outer tube is fixedly connected with a fixed seat, the middle part of the fixed seat is provided with a connecting hole, both ends of the fixed seat are provided with mounting grooves, mounting rods are arranged in the mounting grooves, one end of each mounting rod is fixedly connected with a first clamping piece, the other end of the mounting rod is movably connected with the mounting groove, the inner side of the mounting rod is fixedly connected with the mounting groove through a return spring, one side of fixed disk is equipped with spacing dish, the through-hole has been seted up at the middle part of spacing dish, the equal fixedly connected with dead lever in one side both ends of spacing dish, the one end fixedly connected with second fastener of dead lever.

Optionally, the communicating pipe is communicated with the inner pipe, the connecting hole is communicated with the outer pipe, and the communicating pipe is communicated with the outer pipe through the connecting hole.

Optionally, the fixed disc, the fixed seat and the limiting disc have the same diameter, and the fixed hole, the mounting groove and the fixed rod correspond to each other.

Optionally, the limiting disc is attached to the fixed disc, and the limiting disc is sleeved outside the inner tube through the through hole.

Optionally, the fixing rod penetrates through the fixing hole and is inserted into the mounting groove, and the second clamping piece is clamped with the first clamping piece.

Optionally, the mounting rod is movably connected with the mounting groove through a pin shaft.

Optionally, the outer side of the mounting rod is fixedly connected with an adjusting block, and the adjusting block is T-shaped.

(III) advantageous effects

The utility model provides a syringe needle inner tube possesses following beneficial effect:

(1) this syringe needle inner tube through setting up fixed disk and communicating pipe, is convenient for the connection of outer tube and inner tube, when the inner tube that needs to be renewed, only need with the inner tube with the fixed disk of taking off can, avoid extravagant resource.

(2) This syringe needle inner tube through setting up fixing base and spacing dish, under installation pole, first fastener, return spring, dead lever and second fastener mutually support's effect, has both made things convenient for the installation and the dismantlement of inner tube, has made things convenient for the operation, and labour saving and time saving has guaranteed the fastness when the inner tube is installed again, avoids the inner tube to drop.

Drawings

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

FIG. 2 is a schematic cross-sectional connection diagram of the outer tube and inner tube structure of the present invention;

FIG. 3 is a schematic view of the fixing base structure of the present invention;

fig. 4 is a schematic view of the structure of the fixing plate of the present invention.

In the figure: 1. an outer tube; 2. an inner tube; 3. a needle head; 4. fixing the disc; 5. a communicating pipe; 6. a fixing hole; 7. a fixed seat; 8. connecting holes; 9. mounting grooves; 10. mounting a rod; 11. a first clip member; 12. a pin shaft; 13. a return spring; 14. an adjusting block; 15. a limiting disc; 16. a through hole; 17. fixing the rod; 18. a second clip member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution:

a needle head inner tube comprises an outer tube 1 and an inner tube 2, one end of the inner tube 2 is fixedly connected with a needle head 3, the other end of the inner tube 2 is fixedly connected with a fixed disc 4, one side of the fixed disc 4 is fixedly connected with a communicating tube 5, both ends of the fixed disc 4 are respectively provided with a fixed hole 6, the connection between the outer tube 1 and the inner tube 2 is convenient by arranging the fixed disc 4 and the communicating tube 5, when the inner tube 2 needs to be replaced, only the inner tube 2 and the associated fixed disc 4 need to be taken down, resource waste is avoided, one end of the outer tube 1 is fixedly connected with a fixed seat 7, the middle part of the fixed seat 7 is provided with a connecting hole 8, both ends of the fixed seat 7 are respectively provided with a mounting groove 9, a mounting rod 10 is arranged in the mounting groove 9, one end of the mounting rod 10 is fixedly connected with a first clamping part 11, the other end, through setting up back force spring 13, the effect of inside pulling has been played installation pole 10, make installation pole 10 have the power of inside shift, one side of fixed disk 4 is equipped with spacing dish 15, through-hole 16 has been seted up at spacing dish 15's middle part, the equal fixedly connected with dead lever 17 in one side both ends of spacing dish 15, the one end fixedly connected with second fastener 18 of dead lever 17, through setting up fixing base 7 and spacing dish 15, at installation pole 10, first fastener 11, back force spring 13, dead lever 17 and second fastener 18 are under the effect of mutually supporting, the installation and the dismantlement of inner tube 2 have both been made things convenient for, the operation is made things convenient for, time saving and labor saving, the fastness when the installation of inner tube 2 has been guaranteed again, avoid inner tube 2 to drop.

As an optional technical solution of the utility model:

the communicating pipe 5 is communicated with the inner pipe 2, the connecting hole 8 is communicated with the outer pipe 1, and the communicating pipe 5 is communicated with the outer pipe 1 through the connecting hole 8.

As an optional technical solution of the utility model:

the fixed disk 4, the fixed seat 7 and the limiting disk 15 are equal in diameter, the fixing hole 6, the mounting groove 9 and the fixing rod 17 are corresponding to each other, so that the connection of the first clamping piece 11 and the second clamping piece 18 is facilitated, and the stability between the structures is guaranteed.

As an optional technical solution of the utility model:

spacing dish 15 is connected with the laminating of fixed disk 4, and spacing dish 15 cup joints the outside at inner tube 2 through-hole 16.

As an optional technical solution of the utility model:

the fixing rod 17 penetrates through the fixing hole 6 and is inserted into the mounting groove 9, the second clamping piece 18 is clamped with the first clamping piece 11, one end of the second clamping piece 18 is a plane, the other end of the second clamping piece 18 is arc-shaped, the second clamping piece 18 is identical to the first clamping piece 11 in shape, and the second clamping piece 18 is connected with the first clamping piece 11 through the plane.

As an optional technical solution of the utility model:

the mounting rod 10 is movably connected with the mounting groove 9 through a pin shaft 12.

As an optional technical solution of the utility model:

the adjusting block 14 is fixedly connected to the outer side of the mounting rod 10, the adjusting block 14 is T-shaped, and the mounting rod 10 is conveniently pulled by the adjusting block 14.

In summary, in the needle head inner tube, when the inner tube 2 is replaced, the adjusting block 14 is pulled outwards, the adjusting block 14 drives the mounting rod 10 to move outwards, at this time, the first clamping piece 11 is separated from the second clamping piece 18, the limiting disc 15 can be removed after the second clamping piece 18 loses the constraint, at this time, the fixed disc 4 loses the constraint of the limiting disc 15, the fixed disc 4 can be removed, then a new inner tube 2 and fixed disc 4 are replaced, the new fixed disc 4 is aligned with the fixing base 7, the communication tube 5 is inserted into the connecting hole 8, so that the fixing hole 6 corresponds to the mounting groove 9, then the inner tube 2 and the needle head 3 penetrate out of the through hole 16 on the limiting disc 15, the fixing rod 17 on the limiting disc 15 is inserted into the fixing hole 6, the fixing rod 17 enters the mounting groove 9 after passing through the fixing hole 6, the second clamping piece 18 presses the first clamping piece 11 and is clamped behind the first clamping piece 11, the mounting rod 10 drives the first clamping piece 11 to move inwards and the second clamping piece 18 under the pulling force, and (5) finishing fixation.

It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A needle head inner tube, includes outer tube (1) and inner tube (2), its characterized in that: one end of the inner tube (2) is fixedly connected with a needle (3), the other end of the inner tube (2) is fixedly connected with a fixed disc (4), one side of the fixed disc (4) is fixedly connected with a communicating tube (5), both ends of the fixed disc (4) are respectively provided with a fixed hole (6), one end of the outer tube (1) is fixedly connected with a fixed seat (7), the middle part of the fixed seat (7) is provided with a connecting hole (8), both ends of the fixed seat (7) are respectively provided with a mounting groove (9), a mounting rod (10) is arranged in the mounting groove (9), one end of the mounting rod (10) is fixedly connected with a first clamping part (11), the other end of the mounting rod (10) is movably connected with the mounting groove (9), the inner side of the mounting rod (10) is fixedly connected with the mounting groove (9) through a return spring (13), one side of the fixed disc, the middle part of the limiting disc (15) is provided with a through hole (16), two ends of one side of the limiting disc (15) are fixedly connected with a fixing rod (17), and one end of the fixing rod (17) is fixedly connected with a second clamping piece (18).

2. A needle cannula according to claim 1, wherein:

the communicating pipe (5) is communicated with the inner pipe (2), the connecting hole (8) is communicated with the outer pipe (1), and the communicating pipe (5) is communicated with the outer pipe (1) through the connecting hole (8).

3. A needle cannula according to claim 1, wherein:

the diameters of the fixed disc (4), the fixed seat (7) and the limiting disc (15) are equal, and the fixed hole (6), the mounting groove (9) and the fixing rod (17) are corresponding.

4. A needle cannula according to claim 1, wherein:

spacing dish (15) are connected with fixed disk (4) laminating, spacing dish (15) cup joint in the outside of inner tube (2) through-hole (16).

5. A needle cannula according to claim 1, wherein:

the fixing rod (17) penetrates through the fixing hole (6) and is inserted into the mounting groove (9), and the second clamping piece (18) is clamped with the first clamping piece (11).

6. A needle cannula according to claim 1, wherein:

the mounting rod (10) is movably connected with the mounting groove (9) through a pin shaft (12).

7. A needle cannula according to claim 1, wherein:

the outer side of the mounting rod (10) is fixedly connected with an adjusting block (14), and the adjusting block (14) is T-shaped.