CN215231005U - Novel soft needle infusion pipeline guiding and sealing mechanism - Google Patents
Novel soft needle infusion pipeline guiding and sealing mechanism Download PDFInfo
- Publication number
- CN215231005U CN215231005U CN202121113870.1U CN202121113870U CN215231005U CN 215231005 U CN215231005 U CN 215231005U CN 202121113870 U CN202121113870 U CN 202121113870U CN 215231005 U CN215231005 U CN 215231005U
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- China
- Prior art keywords
- hole
- silica gel
- sealing mechanism
- gel plug
- liquid inlet
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- 238000001802 infusion Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000741 silica gel Substances 0.000 claims abstract description 37
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims description 2
- 239000008280 blood Substances 0.000 abstract description 7
- 210000004369 blood Anatomy 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000007920 subcutaneous administration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 206010015866 Extravasation Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a novel soft needle infusion pipeline direction sealing mechanism, it includes: the liquid inlet is arranged on the indwelling needle 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 through hole is arranged in the guide column, a hose is fixed in the through hole, and the hose, the through hole and the liquid inlet are communicated. The utility model aims to provide a novel soft needle transfusion pipeline guiding and sealing mechanism which has reasonable structure, convenient plugging and can prevent blood from seeping outwards.
Description
Technical Field
The utility model relates to the field of medical supplies, more specifically relates to a novel soft needle infusion pipeline direction sealing mechanism.
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 problems, the utility model aims to provide a novel soft needle infusion pipeline guiding and sealing mechanism which has reasonable structure, convenient plugging and unplugging and can prevent the blood from exosmosis.
According to an aspect of the utility model, a novel soft needle infusion pipeline direction sealing mechanism is provided, include: 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 through hole is formed in the guide column, a hose is fixed in the through hole, and the hose, the 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, 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, and the diameter of the silica gel plug close to the inner hole is 1.0-3.0 mm.
In some embodiments, the silica gel plug is provided with a communicating hole along the axial direction of the guide post, 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, and one side of the communicating hole, which is close to the guide post, is provided with a round chamfer.
In some embodiments, the pore diameter of the communicating pores is 0.2 to 0.6 times the pore diameter of the outer pores.
In some embodiments, the end of the outer wall of the guide post adjacent to the liquid inlet has a rounded chamfer.
In some embodiments, the outer wall of the guide post forms an angle B with the axis of the guide post, the angle B being between 3 ° and 15 °.
In some embodiments, the outer wall of the liquid inlet has a rounded chamfer.
In some embodiments, the through-hole aperture is 0.4 to 0.5 times the through-hole aperture.
The utility model discloses a novel soft needle transfusion pipeline guiding and sealing mechanism, which achieves the purpose of enabling a guide post to be rapidly inserted into a silica gel plug for communicating transfusion through the matching of 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 for the guide post to enter the end with smaller aperture for placing 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.
Drawings
FIG. 1 is a schematic structural view of a guiding and sealing mechanism of a soft needle infusion pipeline of the utility model;
FIG. 2 is a schematic sectional view of the guiding and sealing mechanism of the soft needle infusion pipeline of the present invention;
fig. 3 is a partially enlarged view of a in fig. 2.
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 figure 1, the novel soft needle infusion pipeline guiding and sealing mechanism of the utility model comprises: the liquid inlet 1 is arranged on the indwelling seat, the guide column 2 is arranged on the side-inserting base, the liquid inlet 1 is internally provided with the guide column 2, the end surface of the guide column 2 is in surface contact with the silica gel plug 3 or the guide column 2 is inserted into the inner wall of the silica gel plug 3, the guide column 2 is internally provided with a through hole 21, a hose 4 is fixed in the through hole 21, and the hose 4, the through hole 21 and the liquid inlet 1 are communicated. The purpose of enabling the guide column 2 to be rapidly inserted into the silica gel plug 3 for communicating transfusion is achieved through the matching of the liquid inlet 1, the silica gel plug 3 and the guide column 2, the silica gel plug 3 is arranged on the liquid inlet 1, the communicating hole 31 is a conical hole, and the guide column 2 with a larger aperture can conveniently enter one end with a smaller aperture to place blood to flow out; the silica gel plug 3 and the chamfer on the guide column 2 are used for facilitating the guide column 2 to be rapidly inserted into the communication hole 31.
For better sealed effect that reaches, can be after guide post 2 inserts inlet 1, the terminal surface of guide post 2 and the terminal surface laminating of silica gel stopper 3, can set up protruding or sunken at the terminal surface of guide post 2 for reaching better sealed effect, the terminal surface of silica gel stopper 3 also sets up corresponding sunken or protruding, utilizes the elasticity of silica gel to seal.
The optimal choice guide post 2 disect insertion silica gel stopper 3 utilizes the elasticity of silica gel to hold the outside of guide post 2 tightly, seals, and such mode is convenient for processing production more.
As shown in fig. 2 and 3, the liquid inlet 1 comprises an inner hole 11 and an outer hole 12, the diameter of the outer hole 12 is larger than that of the inner hole 11, an annular mounting groove 13 is formed in the inner wall of the outer hole 12, the silicone plug 3 is arranged in the mounting groove 13, the inner hole 11 is blocked by the portion of the silicone plug 3, and the diameter of the portion, close to the inner hole 11, of the silicone plug 3 is 1.0 mm-3.0 mm. The liquid inlet 1 is set to be a stepped hole, the silica gel plug 3 is conveniently mounted at first, part of the inner hole 11 is shielded by the silica gel plug 3 properly, blood is prevented from being leaked, and the part arranged in the outer hole 12 has a better sealing effect.
The silica gel plug 3 is provided with a communicating hole 31 along the axial direction of the guide post 2, the inner wall of the communicating hole 31 and the axis of the communicating hole 31 form an included angle A which is 0-15 degrees, and one side of the communicating hole 31 close to the guide post 2 is provided with a round chamfer 5. The communicating hole 31 is a tapered hole, the diameter of the hole at the end near the guide post 2 is larger than that of the hole at the side near the inner hole 11, and the round chamfer 5 arranged at the side near the guide post 2 facilitates the guide post 2 to be inserted into the communicating hole 31.
The aperture of the communicating hole 31 is 0.2 to 0.6 times of the aperture of the outer hole 12. The silicone plug 3 partially blocks the outer hole 12 so that the through hole 21 in the guide post 2 communicates with the inner hole 11 while ensuring the flow rate of the liquid in the infusion pump.
The outer wall of the guide post 2 is provided with a round chamfer 5 at one end close to the liquid inlet 1. Utilize the round chamfer 5 of guide post 2 outer wall setting, because the inner wall that allies oneself with through-hole 21 also has round chamfer 5, all be can not conflict each other between the arc, the guide post 2 of being convenient for inserts the intercommunicating pore 31 fast.
The outer wall of the guide post 2 and the axis of the guide post 2 form an included angle B which is 3-15 degrees. The angle of the included angle B can be the same as that of the included angle A and can be slightly larger than the included angle A, and the inner wall of the communicating hole 31 is more attached to the outer wall of the guide column 2 due to the elasticity of the silica gel plug 3, so that the sealing effect is better.
The outer wall of the liquid inlet 1 is provided with a round chamfer 5. Because the retention seat is to be always retained on the skin of a patient, and the liquid inlet 1 is directly contacted with the clothes of the patient after the side plug base is pulled out, if the retention seat is at a right angle, the patient can be scratched or the clothes can be hooked in the using process.
The aperture of the through hole 21 is 0.4-0.5 times of the aperture of the communicating hole 31. So as to ensure the flow rate of the liquid in the infusion pump and prevent the blood from extravasation.
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 (8)
1. Novel soft needle infusion pipeline direction sealing mechanism includes: the needle holder is characterized in that 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 through hole is formed in the guide column, a hose is fixed in the through hole, and the hose, the through hole and the liquid inlet are communicated.
2. The novel soft needle infusion pipeline guiding and sealing mechanism is characterized in that 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, and the diameter of the portion, close to the inner hole, of the silica gel plug is 1.0-3.0 mm.
3. The novel soft needle infusion pipeline guiding and sealing mechanism is characterized in that the silica gel plug is provided with a communicating hole along the axial direction of the guiding 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, and one side of the communicating hole, which is close to the guiding column, is provided with a round chamfer.
4. The novel soft needle infusion pipeline guiding and sealing mechanism as claimed in claim 3, wherein the aperture of the communicating hole is 0.2-0.6 times of that of the outer hole.
5. The novel soft needle infusion pipeline guiding and sealing mechanism as claimed in claim 1, wherein one end of the outer wall of the guiding column, which is close to the liquid inlet, is provided with a round chamfer.
6. The novel soft needle infusion pipeline guiding and sealing mechanism according to claim 5, wherein an included angle B is formed between the outer wall of the guide column and the axis of the guide column, and the included angle B is 3-15 degrees.
7. The novel soft needle infusion pipeline guide sealing mechanism as claimed in claim 1, wherein the outer wall of the liquid inlet is provided with a round chamfer.
8. The novel soft needle infusion pipeline guide sealing mechanism as claimed in claim 3, wherein the aperture of the through hole is 0.4-0.5 times of that of the communication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121113870.1U CN215231005U (en) | 2021-05-21 | 2021-05-21 | Novel soft needle infusion pipeline guiding and sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121113870.1U CN215231005U (en) | 2021-05-21 | 2021-05-21 | Novel soft needle infusion pipeline guiding and sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215231005U true CN215231005U (en) | 2021-12-21 |
Family
ID=79458257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121113870.1U Active CN215231005U (en) | 2021-05-21 | 2021-05-21 | Novel soft needle infusion pipeline guiding and sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215231005U (en) |
-
2021
- 2021-05-21 CN CN202121113870.1U patent/CN215231005U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 5, No. 1019 Liaohe Road, Xinbei District, Changzhou City, Jiangsu Province, 213000 Patentee after: Vertex Medical Equipment (Jiangsu) Co.,Ltd. Country or region after: Zhong Guo Address before: No. 35-209, South Changjiang Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee before: WUXI DINGDIAN MEDICAL INSTRUMENT CO.,LTD. Country or region before: Zhong Guo |