CN215134758U

CN215134758U - Novel soft needle infusion pipeline

Info

Publication number: CN215134758U
Application number: CN202121110835.4U
Authority: CN
Inventors: 秦建; 谈洁润; 苏雨桁; 周兴义; 曹华
Original assignee: Wuxi Dingdian Medical Instrument Co ltd
Current assignee: Vertex Medical Equipment (Jiangsu) Co.,Ltd.
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-14
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a novel soft needle infusion pipeline, it includes: the indwelling seat, the side insertion base and the guiding sealing assembly are arranged, the indwelling needle is vertically arranged at the bottom of the indwelling seat, the indwelling seat is detachably connected with the indwelling needle in the vertical direction, the side insertion base is connected with the indwelling seat through the guiding sealing assembly, and the side insertion base is limited on the side insertion base through the clamping assembly. The utility model aims to provide a novel soft needle infusion pipeline which has reasonable structure, convenient plugging and unplugging and can prevent blood from seeping outwards.

Description

Novel soft needle infusion pipeline

Technical Field

The utility model relates to the field of medical supplies, more specifically relates to a novel soft needle infusion pipeline.

Background

Infusion devices are used to deliver substances, such as drugs, to the subcutaneous layer of skin of a patient. Devices for assisting in the insertion of a cannula of an infusion device into the skin of a patient are well known. For example, some devices use a spring to automatically drive a needle into the skin of a patient to introduce the cannula of an infusion device into the subcutaneous layer. There is a risk of inadvertent contact with the needle. The outer needle seat in the prior art is connected with the subcutaneous part of a patient through a through hole, and an infusion pump is connected outside the through hole.

The prior art has the following disadvantages:

1. when the infusion pump is connected or the infusion equipment is separated, a user needs to operate with both hands, which is inconvenient;

2. after the hose is pulled out, blood seeps out from the existing indwelling needle base.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide an intubation device with a reasonable structure, easy insertion and removal, and capability of preventing blood extravasation.

According to an aspect of the utility model, a novel soft needle infusion pipeline is provided, it includes: the indwelling seat, the side insertion base and the guiding sealing assembly are arranged, the indwelling needle is vertically arranged at the bottom of the indwelling seat, the indwelling seat is detachably connected with the indwelling needle in the vertical direction, the side insertion base is connected with the indwelling seat through the guiding sealing assembly, and the side insertion base is limited on the side insertion base through the clamping assembly.

In some embodiments, the top of the retention seat vertically penetrates through the first through hole, the first through hole is communicated with the retention needle, and the top of the retention seat is provided with a rivet fixing seat which is sunken downwards.

In some embodiments, a pilot seal assembly comprises: the liquid inlet is arranged on the retention seat, the guide column is arranged on the side insertion base, a silica gel plug is arranged in the liquid inlet, the end face of the guide column is in surface contact with the silica gel plug or the guide column is inserted into the inner wall of the silica gel plug, a second through hole is arranged in the guide column, a hose is fixed in the second through hole, and the hose, the second through hole and the liquid inlet are communicated.

In some embodiments, the liquid inlet comprises an inner hole and an outer hole, the diameter of the outer hole is larger than that of the inner hole, the inner wall of the outer hole is provided with an annular mounting groove, the silica gel plug is arranged in the mounting groove, the inner hole is blocked by the part of the silica gel plug, the diameter of the part, close to the inner hole, of the silica gel plug is 1-3 mm, the inner hole and the outer hole are coaxial, the axis of the inner hole and the axis of the outer hole are perpendicular to the axis of the first through hole, and the inner hole is communicated with the first through hole.

In some embodiments, the silica gel plug is provided with a communicating hole along the axial direction of the guide column, the inner wall of the communicating hole and the axis of the communicating hole form an included angle A which is 0-15 degrees, one side of the communicating hole close to the guide column is provided with a round chamfer, the aperture of the communicating hole is 0.2-0.6 times of that of the outer hole, and one end of the outer wall of the guide column close to the liquid inlet is provided with a round chamfer.

In some embodiments, the outer wall of the guide post forms an included angle B with the axis of the guide post, the included angle B is 3-15 degrees, and the aperture of the second through hole is 0.4-0.5 times of the aperture of the communication hole.

In some embodiments, the block subassembly includes locking portion and spacing portion, and spacing portion includes spacing groove and stopper, and the spacing groove setting just extends the protruding formation of inlet at the top of remaining seat through two, and the stopper sets up the one end that is located the guide block and keeps away from the inlet on inserting the base laterally, and the shape of stopper is unanimous with the shape of spacing groove.

In some embodiments, the locking portion includes a kneading block, two clamping pins and a clamping groove, the kneading block is provided with two sides extending out of the limiting block, the clamping pins are fixed on the kneading block, the clamping groove is arranged on the retention seat and corresponds to the clamping pins in position, and the clamping pins and the clamping groove define the positions of the retention seat and the side socket base.

The utility model discloses a novel soft needle transfusion pipeline, which achieves the purpose of quickly inserting a guide post into a silica gel plug to perform communication transfusion by matching a liquid inlet, the silica gel plug and the guide post, the liquid inlet is provided with the silica gel plug, a communicating hole of the silica gel plug is a conical hole, and the guide post with larger aperture is convenient to enter the end with smaller aperture to place blood to flow out; the silica gel plug and the chamfer angle on the guide column are used for facilitating the guide column to be rapidly inserted into the communicating hole; the position of the side socket base is limited by a locking part in the clamping component, and the kneading block is kneaded by one hand to reduce the distance between the two clamping pins when the side socket base is taken out, so that the side socket base is separated; the side-inserting base is prevented from shaking on the retaining base by the close fit between the limiting groove and the limiting block.

Drawings

FIG. 1 is a schematic structural view of the soft needle infusion pipeline of the present invention;

FIG. 2 is an exploded view of the soft needle infusion tube of the present invention;

FIG. 3 is a schematic structural view of a guiding and sealing assembly of the soft needle infusion pipeline of the present invention;

fig. 4 is a partially enlarged view of a portion a of fig. 3;

fig. 5 is a schematic structural view of the clamping component of the soft needle infusion pipeline of the utility model.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functional, method, or structural equivalents and substitutions made by these embodiments are within the scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.

As shown in fig. 1 and 2, the novel soft needle infusion pipeline of the present invention comprises: the indwelling seat 1, the side insertion base 2 and the guide sealing component 3 are arranged, the indwelling needle 11 is vertically arranged at the bottom of the indwelling seat 1, the indwelling seat 1 is detachably connected with the side insertion base 2 in the vertical direction of the indwelling needle 11, the side insertion base 2 is connected with the indwelling seat 1 through the guide sealing component 3, and the side insertion base 2 is limited on the side insertion base 2 through the clamping component 4. The purpose of enabling the guide column 32 to be rapidly inserted into the silica gel plug 33 for communicating transfusion is achieved through the matching of the liquid inlet 31, the silica gel plug 33 and the guide column 32, the liquid inlet 31 is provided with the silica gel plug 33, the communicating hole 331 of the silica gel plug is a conical hole, and the guide column 32 with a larger aperture can conveniently enter the end with a smaller aperture to place blood to flow out; the silica gel plug 33 and the chamfer on the guide column 32 are used for facilitating the guide column 32 to be rapidly inserted into the communication hole 331; the position of the side socket 2 is limited by the locking part 41 in the clamping component 4, and the kneading block 421 is kneaded by one hand to reduce the distance between the two clamping pins 422 when the side socket is taken out, so that the side socket 2 is separated; the side insertion base 2 is prevented from shaking on the indwelling seat 1 by the close fitting between the stopper groove 411 and the stopper 412.

The top of the indwelling seat 1 vertically penetrates through the first through hole 12, the first through hole 12 is communicated with the indwelling needle 11, and the top of the indwelling seat 1 is provided with a rivet fixing seat 13 which is sunken downwards. In concrete use the utility model discloses delivery drive arrangement uses, and at first on the rivet subassembly sets up drive arrangement, the setting of seat 1 of keeping somewhere is at drive arrangement's top, utilizes drive arrangement to send rivet subassembly into fix with rivet 13, utilizes the top of the sealed first through-hole 12 of rivet subassembly simultaneously, and further will keep somewhere keeping somewhere needle 11 on the seat 1 and send into the patient subcutaneous.

As shown in fig. 3 and 4, the guide seal assembly 3 includes: the liquid inlet 31 is arranged on the retention seat 1, the guide column 32 is arranged on the side insertion base 2, the silicone plug 33 is arranged in the liquid inlet 31, the end face of the guide column 32 is in surface contact with the silicone plug 33 or the guide column 32 is inserted into the inner wall of the silicone plug 33, the hose 5 is fixed in the second through hole 321, and the hose 5, the second through hole 321 and the liquid inlet 31 are communicated. The purpose of enabling the guide column 32 to be rapidly inserted into the silica gel plug 33 for communicating transfusion is achieved through the matching of the liquid inlet 31, the silica gel plug 33 and the guide column 32, the liquid inlet 31 is provided with the silica gel plug 33, the communicating hole 331 of the silica gel plug is a conical hole, and the guide column 32 with a larger aperture can conveniently enter the end with a smaller aperture to place blood to flow out; the silica gel plug 33 and the chamfer on the guide post 32 are used for facilitating the guide post 32 to be rapidly inserted into the communication hole 331.

In order to achieve a better sealing effect, after the guide post 32 is inserted into the liquid inlet 31, the end surface of the guide post 32 is attached to the end surface of the silicone plug 33, in order to achieve a better sealing effect, a protrusion or a recess may be disposed on the end surface of the guide post 32, a corresponding recess or protrusion may be disposed on the end surface of the silicone plug 33, and the silicone plug is sealed by elasticity of silicone rubber.

The optimal choice guide post 32 is directly inserted into silica gel plug 33, utilizes the elasticity of silica gel to hug closely the outside of guide post 32, seals, and such mode is convenient for processing production more.

As shown in FIGS. 2 and 3, the liquid inlet 31 comprises an inner hole 311 and an outer hole 312, the diameter of the outer hole 312 is larger than that of the inner hole 311, an annular mounting groove 313 is formed in the inner wall of the outer hole 312, the silicone plug 33 is arranged in the mounting groove 313, the inner hole 311 is blocked by the portion of the silicone plug 33, and the diameter of the portion, close to the inner hole 311, of the silicone plug 33 is 1 mm-3 mm. The liquid inlet 31 is set to be a stepped hole, so that the silica gel plug 33 is mounted conveniently, part of the inner hole 311 is shielded by using the silica gel plug 33 properly, blood is prevented from being leaked, and the part arranged at the outer hole 312 has better sealing effect.

The silica gel plug 33 is provided with a communicating hole 331 along the axial direction of the guide column 32, the inner wall of the communicating hole 331 and the axis of the communicating hole 331 form an included angle A which is 0-15 degrees, and one side of the communicating hole 331 close to the guide column 32 is provided with a round chamfer 35. The communication hole 331 is a tapered hole having a larger diameter at an end near the guide post 32 than at a side near the inner hole 311, and a rounded chamfer 35 provided at a side near the guide post 32 facilitates insertion of the guide post 32 into the communication hole 331.

The aperture of the communication hole 331 is 0.2 to 0.6 times the aperture of the outer hole 312. The silicone plug 33 partially blocks the outer hole 312 so that the second through hole 321 in the guide post 32 communicates with the inner hole 311 while ensuring the flow rate of the liquid in the infusion pump.

The outer wall of the guide post 32 has a rounded chamfer 35 at one end adjacent to the inlet port 31. Utilize the round chamfer 35 of guide post 32 outer wall setting, owing to link the inner wall of second through-hole 321 also to have round chamfer 35, all be circular between can not conflict each other, be convenient for guide post 32 to insert intercommunicating pore 331 fast.

The outer wall of the guide post 32 and the axis of the guide post 32 form an included angle B, and the included angle B is 3-15 degrees. The included angle B can be the same as the included angle A and can also be slightly larger than the included angle A, and the inner wall of the communicating hole 331 is more attached to the outer wall of the guide column 32 due to the elasticity of the silica gel plug 33, so that the sealing effect is better.

The outer wall of the liquid inlet 31 is provided with a round chamfer 35. Since the retention base 1 is always retained on the skin of the patient and the liquid inlet 31 directly contacts with the clothes of the patient after the side plug base 2 is pulled out, if the retention base is at a right angle, the retention base may scratch or hook the patient or clothes during the use.

The aperture of the second through hole 321 is 0.4-0.5 times the aperture of the communication hole 331. So as to ensure the flow rate of the liquid in the infusion pump and prevent the blood from extravasation.

The clamping assembly 4 comprises a locking part 41 and a limiting part 42, the limiting part 42 comprises a limiting groove 411 and a limiting block 412, the limiting groove 411 is formed in the top of the retaining seat 1 and formed by two protrusions extending out of the liquid inlet 31, the limiting block 412 is arranged at one end, located on the side insertion base 2, of the guide block and far away from the liquid inlet 31, and the shape of the limiting block 412 is consistent with that of the limiting groove 411. The close fit between the stopper groove 411 and the stopper 412 prevents the side insertion base 2 from shaking on the indwelling seat 1.

As shown in fig. 5, the locking portion 41 includes a kneading block 421, two clamping pins 422 and two clamping grooves 423, the kneading block 421 has two sides extending out of the limiting block 412, the clamping pins 422 are fixed on the kneading block 421, the clamping grooves 423 are disposed on the retention base 1 and correspond to the clamping pins 422, and the clamping pins 422 and the clamping grooves 423 define the positions of the retention base 1 and the side receptacle base 2. Stop the position arch outside bayonet lock 422 is equipped with, be equipped with in the draw-in groove 423 with protruding complex sunken, inject in the recess respectively after bayonet lock 422 inserts, prevent that side socle 2 from breaking away from and reserving seat 1, when side socle 2 is pulled out to needs, the one hand utilizes thumb and forefinger to twist and holds between the fingers piece 421, makes the distance between two bayonet locks 422 reduce and then stops the position arch and break away from the recess and pull out side socle 2 again. The outer side of the kneading block 421 has a recess to fit the shape of the thumb and forefinger, and the recess has a pattern to prevent the hand from slipping when the side insert base 2 is taken out.

The foregoing is only a few embodiments of the present invention, and it should be noted that, for those skilled in the art, other modifications and improvements can be made without departing from the inventive concept of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. Novel soft needle infusion pipeline, its characterized in that includes: the indwelling seat, the side insertion base and the guide sealing component are arranged, an indwelling needle is vertically arranged at the bottom of the indwelling seat, the indwelling seat is detachably connected with the indwelling needle in the vertical direction and is connected with the side insertion base, the side insertion base is connected with the indwelling seat through the guide sealing component, and the side insertion base is limited on the side insertion base through a clamping component.

2. The novel soft needle infusion pipeline according to claim 1, wherein the top of the indwelling seat vertically penetrates through a first through hole which is communicated with the indwelling needle, and a rivet fixing seat which is recessed downwards is arranged at the top of the indwelling seat.

3. The novel soft needle infusion line of claim 1, wherein the guide seal assembly comprises: the hose retaining device comprises a liquid inlet and a guide column, wherein the liquid inlet is formed in an retaining seat, the guide column is arranged on a side insertion base, a silica gel plug is arranged in the liquid inlet, the end face of the guide column is in surface contact with the silica gel plug or the guide column is inserted into the inner wall of the silica gel plug, a second through hole is formed in the guide column, a hose is fixed in the second through hole, and the hose, the second through hole and the liquid inlet are communicated.

4. The novel soft needle infusion pipeline according to claim 3, wherein the liquid inlet comprises an inner hole and an outer hole, the diameter of the outer hole is larger than that of the inner hole, an annular mounting groove is formed in the inner wall of the outer hole, the silica gel plug is arranged in the mounting groove, the inner hole is blocked by the silica gel plug, the diameter of the portion, close to the inner hole, of the silica gel plug is 1-3 mm, the inner hole and the outer hole are coaxial, the axis of the inner hole and the axis of the outer hole are perpendicular to the axis of the first through hole, and the inner hole is communicated with the first through hole.

5. The novel soft needle infusion pipeline according to claim 3, wherein the silica gel plug is provided with a communicating hole along the axial direction of the guide column, the inner wall of the communicating hole forms an included angle A with the axis of the communicating hole, the included angle A is 0-15 degrees, a round chamfer is arranged on one side, close to the guide column, of the communicating hole, the aperture of the communicating hole is 0.2-0.6 times of that of the outer hole, and a round chamfer is arranged at one end, close to the liquid inlet, of the outer wall of the guide column.

6. The novel soft needle infusion pipeline according to claim 3, wherein an included angle B is formed between the outer wall of the guide column and the axis of the guide column, the included angle B is 3-15 degrees, and the aperture of the second through hole is 0.4-0.5 times of that of the communicating hole.

7. The novel soft needle infusion pipeline according to claim 3, wherein the clamping assembly comprises a locking portion and a limiting portion, the limiting portion comprises a limiting groove and a limiting block, the limiting groove is formed in the top of the retaining seat and formed by two protrusions extending out of the liquid inlet, the limiting block is arranged on one end, located on the side insertion base, of the guide block and far away from the liquid inlet, and the shape of the limiting block is consistent with that of the limiting groove.

8. The novel soft needle infusion pipeline according to claim 7, wherein the locking part comprises a kneading block, two clamping pins and a clamping groove, the kneading block is provided with two sides extending out of the limiting block, the clamping pins are fixed on the kneading block, the clamping groove is arranged on the retention seat and corresponds to the clamping pins in position, and the clamping pins and the clamping groove limit the positions of the retention seat and the side insertion base.