CN114569835A - Infusion pump - Google Patents
Infusion pump Download PDFInfo
- Publication number
- CN114569835A CN114569835A CN202210361394.8A CN202210361394A CN114569835A CN 114569835 A CN114569835 A CN 114569835A CN 202210361394 A CN202210361394 A CN 202210361394A CN 114569835 A CN114569835 A CN 114569835A
- Authority
- CN
- China
- Prior art keywords
- infusion pump
- sleeve
- pump according
- sealing
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 116
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
Abstract
The invention discloses an infusion pump, which comprises a liquid reservoir and an infusion pump body, wherein the liquid reservoir and the infusion pump body can be waterproof at an IPX8 level after being assembled, and a sealing ring is arranged between the liquid reservoir and the infusion pump body; sealing rings are arranged between the upper infusion pump shell and the lower infusion pump shell and can prevent water after being fixed and assembled by screws; a sleeve is arranged at the center of the lower top surface of the infusion pump body, and a sealing ring is arranged between the sleeve and the infusion pump shell; a piston is arranged in the liquid storage device, and a sealing ring is arranged between the piston and the inner wall of the liquid storage device, so that liquid can be prevented from overflowing. The infusion pump is excellent in waterproof performance and convenient for a patient to wear.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an infusion pump.
Background
An infusion pump is a medical device which can give a prescribed amount of medicine at a prescribed time, and the infusion pump can supplement the medicine and meet the treatment requirements of patients.
Disclosure of Invention
In view of this, the invention provides an infusion pump which is good in waterproof performance and convenient for patients to use.
The invention adopts the following technical scheme: the utility model provides an infusion pump, includes the reservoir and the infusion pump body, the reservoir is the L type with the infusion pump body is whole, and the infusion pump body is equipped with the sleeve, and the reservoir is equipped with the opening, sealing connection between the inner wall of the infusion pump body and opening inboard.
Optionally, a first sealing element is arranged outside the sleeve, and the first sealing element is a sealing ring; the infusion pump body is connected with the inner wall of the inner side of the opening in a sealing mode through the first sealing piece.
Optionally, the infusion pump body comprises an infusion pump lower housing assembly and an infusion pump upper housing assembly, wherein: and a second sealing element is arranged between the upper infusion pump shell assembly and the lower infusion pump shell assembly.
Optionally, the second sealing element is a sealing ring arranged on the butt joint surface of the lower infusion pump shell and the upper infusion pump shell.
Optionally, the sealing ring is integrally injection molded with the lower housing of the infusion pump.
Optionally, the infusion pump upper housing and the infusion pump lower housing are connected through screws.
Optionally, the infusion pump upper housing is provided with a sleeve mounting aperture, and a third seal is provided between the sleeve and the infusion pump upper housing.
Optionally, a groove is formed in a portion of the sleeve connected with the sleeve mounting hole, and the third sealing element is a sealing ring located in the groove.
Optionally, the sleeve is connected with the upper casing of the infusion pump through screws.
Optionally, a piston is arranged inside the opening of the reservoir, and the piston is connected with the inner wall of the opening through a fourth sealing element.
Optionally, the fourth seal is an O-ring disposed outside the piston.
Optionally, a plurality of air holes are formed in the lower infusion pump shell, and a waterproof air-permeable membrane is arranged on the inner side of the lower infusion pump shell; the waterproof breathable film is covered on the breathable holes.
According to the technical scheme of the invention, an infusion pump body of the infusion pump is provided with a sleeve, a liquid reservoir is provided with an opening, and the infusion pump body is hermetically connected with the inner wall of the opening; the invention realizes the sealing of the sleeve connecting part of the liquid reservoir and the infusion pump body and has good waterproof performance.
Drawings
For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an infusion pump prior to engagement with a rail in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of an infusion pump during a stuck rail connection process according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a completed clamp rail connection for an infusion pump in accordance with an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of an infusion pump in accordance with an embodiment of the present invention;
FIG. 5 is an exploded view of an infusion pump body in an embodiment of the present invention;
FIG. 6 is a cross-sectional view of the connection of the upper and lower housings of the infusion pump body in an embodiment of the present invention;
FIG. 7 is a schematic view of a sleeve according to an embodiment of the present invention;
FIG. 8 is a schematic view of a sleeve installation in an embodiment of the present invention;
FIG. 9 is a schematic view of a sleeve connection in an embodiment of the present invention;
fig. 10 is an exploded view of a reservoir in an embodiment of the invention;
FIG. 11 is a schematic diagram of the construction of a reservoir in an embodiment of the invention;
FIG. 12 is a schematic view of a piston seal in an embodiment of the present invention;
FIG. 13 is a schematic structural view of a lower housing assembly of an infusion pump in an embodiment of the present invention;
fig. 14 is a rear view of a lower housing assembly of an infusion pump in an embodiment of the present invention.
In the figure: 1-reservoir, 2-infusion pump body, 3-infusion pump upper shell assembly, 31-infusion pump upper shell, 4-infusion pump lower shell assembly, 41-infusion pump lower shell, 411-butt joint surface, 412-air vent, 5-first sealing element, 6-sleeve, 61-groove, 7-second sealing element, 71-arc part, 8-third sealing element, 9-fourth sealing element, 10-piston, 11-inner wall, 12-waterproof air permeable membrane, 13-screw, 14-infusion pump body lower top surface, 15-reservoir bottom surface, 16-sleeve mounting hole opening, 17-infusion pump body bottom surface.
Detailed Description
In the embodiment of the present invention, the infusion pump has excellent waterproof performance and meets the use requirements, which will be described in detail below.
As shown in fig. 1 to 14, the embodiment of the invention discloses an infusion pump, which comprises a liquid reservoir 1 and an infusion pump body 2, wherein the liquid reservoir 1 and the infusion pump body 2 are L-shaped integrally, a sleeve 6 is arranged in the center of a low top surface 14 of the infusion pump body, an opening is formed in a bottom surface 15 of the liquid reservoir, and the low top surface 14 of the infusion pump body is connected with an inner wall 11 on the inner side of the opening in a sealing manner. Fig. 10 and 11 show an L-shape of the reservoir 1.
A first sealing element 5 is arranged on the outer side of the sleeve 6, and the first sealing element 5 is a sealing ring; the sealing connection between the lower top surface 14 of the infusion pump body and the inner wall 11 is achieved by the first seal 5.
After the guide rail of the liquid storage device and the guide rail of the infusion pump body are mutually occluded, the liquid storage device 1 is pushed downwards, and after the liquid storage device reaches the lowest end, the inner wall 11 of the liquid storage device 1 extrudes the sealing ring to cause the deformation of the sealing ring, so that the assembly is completed, as shown in fig. 3. Fig. 4 shows a cross-sectional view of the assembled gasket.
The infusion pump body 2 comprises an infusion pump lower housing assembly 3 and an infusion pump upper housing assembly 4, wherein: a second seal 7 is provided between the upper infusion pump housing assembly 3 and the lower infusion pump housing assembly 4. The lower infusion pump housing 41 has an abutting surface 411 that abuts the upper housing 31, and the second seal 7 is a seal ring provided on the abutting surface 411. A circle of sealing rings are injected on the abutting surface 411 in an injection molding mode, the abutting surface 411 comprises a section of arc-shaped portion 71, the arc-shaped portion 71 is matched with the abutting surface 411, the abutting surface 411 is not on the same plane, the abutting surface 411 is not a plane, connection is firmer, and the abutting surface 411 is also matched with the inclination angle of the edge of the lower shell. The upper and lower shells are fastened and then fixed by screws, the cross section of the sealing ring is as shown in figure 6, and the screws enable the upper and lower shells to be mutually extruded to achieve sealing.
The infusion pump upper housing 31 is provided with a sleeve mounting aperture 16 and a third seal 8 is provided between the sleeve 6 and the infusion pump upper housing 31.
The sleeve 6 is provided with a groove 61 at the connecting part with the sleeve mounting hole 16, and the third sealing element 9 is a sealing ring positioned in the groove 61. The sleeve 6 is connected with the upper shell 31 of the infusion pump through a screw 13.
The sealing ring is sleeved on the sleeve 6 shown in fig. 7, then the sleeve 6 is inserted into the infusion pump semi-finished product and is installed towards the bottom surface 17 of the infusion pump body, the sealing ring is assembled in the groove 61 and is pressed with the infusion pump semi-finished product, and the assembly is completed, so that sealing is realized. The cross-sectional view is shown in fig. 9, in which the cross-sectional state of the seal ring can be seen.
A piston 10 is provided inside the opening of the reservoir 1, and the piston 10 is connected to an inner wall 11 inside the opening by a fourth seal 9. The fourth seal 9 is a seal ring 9 provided outside the piston 10, and an O-ring may be used.
The piston 10 with the sealing ring 9 is arranged in the liquid storage device 1, the piston 10 can be pushed by a screw rod in the liquid storage device 1 to extrude infusion liquid, and the sealing ring 9 is extruded and deformed by the piston 10 and the inner wall 11 of the liquid storage device to complete sealing. Fig. 12 shows a cross-sectional view of the seal ring 9.
A plurality of air holes 412 are arranged on the lower shell 41 of the infusion pump, and a waterproof air-permeable membrane 12 is arranged on the inner side of the lower shell 41 of the infusion pump; the waterproof breathable film 12 covers the breathable holes 412.
The waterproof breathable film 1 is adhered to the lower casing 41 of the infusion pump through a double-sided adhesive tape, three small holes are formed in the lower casing of the infusion pump correspondingly, gas can pass through the small holes, and liquid water is blocked outside.
According to the embodiment of the invention, the center of the lower top surface of the infusion pump body is provided with a sleeve, the bottom surface of the liquid reservoir is provided with an opening, and the lower top surface of the infusion pump body is hermetically connected with the inner wall of the opening; a second sealing element is arranged between the upper infusion pump shell assembly and the lower infusion pump shell assembly; a third sealing element is arranged between the sleeve and the upper shell of the infusion pump; the piston is connected with the inner wall of the opening through a fourth sealing element. The infusion pump provided by the embodiment of the invention has excellent waterproof performance, can be worn during swimming and bathing, and meets the use requirements of patients.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. An infusion pump comprising a reservoir (1) and an infusion pump body (2), characterized in that,
the infusion pump body is provided with a sleeve (6), the liquid storage device is provided with an opening, and the sleeve of the infusion pump body is hermetically connected with an inner wall (11) at the inner side of the opening of the liquid storage device.
2. Infusion pump according to claim 1, characterized in that a first sealing element (5) is arranged outside the sleeve (6), the first sealing element (5) being a sealing ring; the sealed connection between the infusion pump body and the inner wall (11) of the liquid storage device is realized through the first sealing element (5).
3. The infusion pump according to claim 1, characterized in that the infusion pump body (2) comprises an infusion pump lower housing assembly (3) and an infusion pump upper housing assembly (4), wherein:
and a second sealing element (7) is arranged between the infusion pump upper shell component (3) and the infusion pump lower shell component (4).
4. The infusion pump according to claim 1, wherein the second sealing member (7) is a sealing ring provided on an abutment surface (411) of the lower infusion pump housing (41) and the upper infusion pump housing (31).
5. Infusion pump according to claim 4, characterized in that the sealing ring is injection moulded in one piece with the infusion pump lower housing (41).
6. The infusion pump according to claim 4, wherein the infusion pump upper housing (31) and the infusion pump lower housing (41) are fixed by a screw connection.
7. The infusion pump according to any one of claims 1 to 6, characterized in that the infusion pump upper housing (31) is provided with a sleeve mounting aperture (16), and a third seal (8) is provided between the sleeve (6) and the infusion pump upper housing (31).
8. Infusion pump according to claim 7, characterized in that the sleeve (6) is provided with a groove (61) in the connection with the sleeve mounting orifice (16), and that the third sealing element (8) is a sealing ring located in the groove (61).
9. Infusion pump according to any of claims 1 to 6, characterized in that the connection between the sleeve (6) and the infusion pump upper housing (31) is by means of screws (13).
10. Infusion pump according to any of claims 1 to 6, characterized in that inside the opening of the reservoir (1) a piston (10) is provided, which piston (10) is connected to the inner wall (11) inside the opening by a fourth seal (9).
11. Infusion pump according to claim 10, characterized in that the fourth seal (9) is an O-ring provided outside the piston (10).
12. The infusion pump according to any one of claims 1 to 6, wherein a plurality of air holes (412) are formed on the lower infusion pump casing (41), and a waterproof air-permeable membrane (12) is arranged on the inner side of the lower infusion pump casing (41);
the waterproof breathable film (12) covers the breathable holes (412).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210361394.8A CN114569835B (en) | 2022-04-07 | 2022-04-07 | Infusion pump |
| PCT/CN2023/086805 WO2023193782A1 (en) | 2022-04-07 | 2023-04-07 | Infusion device, assembly method therefor, and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210361394.8A CN114569835B (en) | 2022-04-07 | 2022-04-07 | Infusion pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114569835A true CN114569835A (en) | 2022-06-03 |
| CN114569835B CN114569835B (en) | 2024-01-19 |
Family
ID=81784427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210361394.8A Active CN114569835B (en) | 2022-04-07 | 2022-04-07 | Infusion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114569835B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779188A (en) * | 2023-02-07 | 2023-03-14 | 微泰医疗器械(杭州)股份有限公司 | Infusion pump and assembling method thereof |
| WO2023193782A1 (en) * | 2022-04-07 | 2023-10-12 | 微泰医疗器械(杭州)股份有限公司 | Infusion device, assembly method therefor, and use thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030198558A1 (en) * | 2002-04-22 | 2003-10-23 | Nason Clyde K. | Shape memory alloy wire driven positive displacement micropump with pulsatile output |
| CN102698338A (en) * | 2012-06-04 | 2012-10-03 | 郑攀 | Structure for connecting paste type insulin pump and medicament storing device |
| CN110755712A (en) * | 2018-07-25 | 2020-02-07 | 比亚迪股份有限公司 | Chemotherapy pump |
| CN210472717U (en) * | 2019-06-13 | 2020-05-08 | 南通安诺医疗科技有限公司 | Environment-friendly medical injection pump with quick-charging rechargeable battery |
| CN212118698U (en) * | 2020-01-14 | 2020-12-11 | 徐州一佳医疗器械有限公司 | Novel air inlet seat for infusion tube |
-
2022
- 2022-04-07 CN CN202210361394.8A patent/CN114569835B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030198558A1 (en) * | 2002-04-22 | 2003-10-23 | Nason Clyde K. | Shape memory alloy wire driven positive displacement micropump with pulsatile output |
| CN102698338A (en) * | 2012-06-04 | 2012-10-03 | 郑攀 | Structure for connecting paste type insulin pump and medicament storing device |
| CN110755712A (en) * | 2018-07-25 | 2020-02-07 | 比亚迪股份有限公司 | Chemotherapy pump |
| CN210472717U (en) * | 2019-06-13 | 2020-05-08 | 南通安诺医疗科技有限公司 | Environment-friendly medical injection pump with quick-charging rechargeable battery |
| CN212118698U (en) * | 2020-01-14 | 2020-12-11 | 徐州一佳医疗器械有限公司 | Novel air inlet seat for infusion tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023193782A1 (en) * | 2022-04-07 | 2023-10-12 | 微泰医疗器械(杭州)股份有限公司 | Infusion device, assembly method therefor, and use thereof |
| CN115779188A (en) * | 2023-02-07 | 2023-03-14 | 微泰医疗器械(杭州)股份有限公司 | Infusion pump and assembling method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114569835B (en) | 2024-01-19 |
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| SE01 | Entry into force of request for substantive examination | ||
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