CN114569835B - Infusion pump - Google Patents
Infusion pump Download PDFInfo
- Publication number
- CN114569835B CN114569835B CN202210361394.8A CN202210361394A CN114569835B CN 114569835 B CN114569835 B CN 114569835B CN 202210361394 A CN202210361394 A CN 202210361394A CN 114569835 B CN114569835 B CN 114569835B
- Authority
- CN
- China
- Prior art keywords
- infusion pump
- sleeve
- sealing
- sealing ring
- seal
- 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.)
- Active
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 112
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000011265 semifinished product Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
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 in IPX8 grade after being assembled, and a sealing ring is arranged between the liquid reservoir and the infusion pump body; the sealing rings are arranged between the upper infusion pump shell and the lower infusion pump shell, and can be waterproof after being fixed and assembled by screws; a sleeve is arranged in 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 housing; the piston is arranged in the liquid storage device, and the 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 has excellent waterproof performance and is convenient for patients to wear.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to an infusion pump.
Background
The infusion pump is a medical device for administering a prescribed amount of drug at a prescribed time, which allows for replenishment of the drug and meets the therapeutic needs of the patient.
Disclosure of Invention
In view of the above, the invention provides an infusion pump which has good waterproof performance and is convenient for patients to use.
The invention adopts the following technical scheme: the utility model provides an infusion pump, includes reservoir and infusion pump body, reservoir and the whole L type that is of infusion pump body, 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 inboard of infusion pump body and opening.
Optionally, a first sealing element is arranged on the outer side of the sleeve, and the first sealing element is a sealing ring; the infusion pump body is in sealing connection with the inner wall on the inner side of the opening 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: a second sealing element is arranged between the upper shell component of the infusion pump and the lower shell component of the infusion pump.
Optionally, the second sealing element is a sealing ring arranged on the abutting surface of the lower infusion pump shell and the upper infusion pump shell.
Optionally, the sealing ring and the infusion pump lower shell are integrally injection molded.
Optionally, the infusion pump upper shell is connected with the infusion pump lower shell 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 at a position where the sleeve is 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 shell of the infusion pump through screws.
Optionally, a piston is arranged at the inner side of the opening of the liquid reservoir, and the piston is connected with the inner wall at the inner side of the opening through a fourth sealing piece.
Optionally, the fourth sealing element is an O-ring arranged outside the piston.
Optionally, a plurality of ventilation holes are formed in the lower infusion pump shell, and a waterproof and breathable film is arranged on the inner side of the lower infusion pump shell; the waterproof breathable film covers the breathable holes.
According to the technical scheme of the invention, the infusion pump body of the infusion pump is provided with the sleeve, the liquid reservoir is provided with the opening, and the infusion pump body is in sealing connection with the inner wall at the inner side of the opening; the invention realizes the sealing of the sleeve connection part of the liquid reservoir and the infusion pump body, and has good waterproof performance.
Drawings
For purposes of illustration and not limitation, the 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 illustration of the structure of an infusion pump in accordance with an embodiment of the present invention prior to rail attachment;
FIG. 2 is a schematic illustration of the structure of an infusion pump during rail attachment in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of the completion of the infusion pump card rail connection of an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of an infusion pump according to 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 an infusion pump body with upper and lower housings connected in an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of a sleeve in an embodiment of the invention;
FIG. 8 is a schematic view of a sleeve mount in an embodiment of the 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 structure of a reservoir in an embodiment of the invention;
FIG. 12 is a schematic illustration of the structure of a piston seal in an embodiment of the present invention;
FIG. 13 is a schematic view of the structure of the infusion pump lower housing assembly in an embodiment of the present invention;
fig. 14 is a rear view of an infusion pump lower housing assembly in an embodiment of the present invention.
In the figure: 1-reservoir, 2-infusion pump body, 3-infusion pump upper housing assembly, 31-infusion pump upper housing, 4-infusion pump lower housing assembly, 41-infusion pump lower housing, 411-interface, 412-vent, 5-first seal, 6-sleeve, 61-groove, 7-second seal, 71-arc, 8-third seal, 9-fourth seal, 10-piston, 11-inner wall, 12-waterproof vented membrane, 13-screw, 14-infusion pump body low top surface, 15-reservoir bottom surface, 16-sleeve mounting orifice, 17-infusion pump body bottom surface.
Detailed Description
In the embodiment of the invention, the infusion pump has excellent waterproof performance, meets the use requirement, and is specifically described below.
As shown in fig. 1 to 14, the embodiment of the invention discloses an infusion pump, which comprises a liquid storage device 1 and an infusion pump body 2, wherein the liquid storage device 1 and the infusion pump body 2 are integrally L-shaped, a sleeve 6 is arranged at the center of a low top surface 14 of the infusion pump body, an opening is arranged on a bottom surface 15 of the liquid storage device, and the low top surface 14 of the infusion pump body is in sealing connection with an inner wall 11 on the inner side of the opening. Fig. 10 and 11 show the L-shape of the reservoir 1.
The outer side of the sleeve 6 is provided with a first sealing element 5, and the first sealing element 5 is a sealing ring; the sealing connection is achieved between the infusion pump body lower top surface 14 and the inner wall 11 by means of the first seal 5.
After the guide rail of the liquid storage device and the guide rail of the infusion pump body are meshed with each other, 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 presses the sealing ring, so that the sealing ring is deformed, and the assembly is completed, as shown in fig. 3. Fig. 4 is a sectional view of the assembled seal ring.
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 infusion pump lower case 41 has a mating surface 411 that mates with the upper case 31, and the second seal 7 is a seal ring provided on the mating surface 411. A circle of sealing rings are molded on the abutting surface 411, the abutting surface 411 comprises a section of arc-shaped part 71, the arc-shaped part 71 is matched with the abutting surface 411, the abutting surface 411 is not on a plane, the abutting surface 411 is not a plane, so that the connection is firmer, and the inclination angle of the edge of the lower shell is matched. The upper and lower shells are fastened and then fixed by screws, the cross section of the sealing ring is shown in figure 6, and the screws enable the upper and lower shells to be mutually extruded to achieve sealing.
The upper infusion pump housing 31 is provided with a sleeve mounting orifice 16, and a third seal 8 is provided between the sleeve 6 and the upper infusion pump housing 31.
The sleeve 6 is provided with a groove 61 at the location where it is connected to the sleeve mounting aperture 16 and the third seal 9 is a sealing ring located 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 on the semi-finished product of the infusion pump, the semi-finished product of the infusion pump is installed towards the bottom surface 17 of the infusion pump body, the sealing ring is assembled in the groove 61, and the semi-finished product of the infusion pump is pressed, so that the assembly is completed, and the sealing is realized. The cross-sectional view is shown in fig. 9, and the cross-sectional state of the seal ring can be seen.
A piston 10 is arranged on the inner side of the opening of the liquid reservoir 1, and the piston 10 is connected with an inner wall 11 on the inner side of the opening through a fourth sealing piece 9. The fourth sealing member 9 is a sealing ring 9 arranged on the outer side of the piston 10, and an O-ring can be adopted.
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 finish sealing. The cross-sectional state of the seal ring 9 is shown in fig. 12.
The infusion pump lower shell 41 is provided with a plurality of ventilation holes 412, and the inner side of the infusion pump lower shell 41 is provided with a waterproof ventilation membrane 12; the waterproof and breathable film 12 covers the breathable holes 412.
The waterproof and breathable film 1 is adhered to the lower infusion pump shell 41 through self-contained double-sided adhesive tape, and three small holes are formed in the lower infusion pump shell correspondingly, so that gas can pass through the holes, and liquid water is blocked outside.
According to the embodiment of the invention, the center of the low top surface of the infusion pump body is provided with the sleeve, the bottom surface of the liquid storage device is provided with the opening, and the low top surface of the infusion pump body is in sealing connection with the inner wall at the inner side of the opening; a second sealing piece is arranged between the upper infusion pump shell component and the lower infusion pump shell component; a third sealing piece is arranged between the sleeve and the upper shell of the infusion pump; the piston is connected with the inner wall of the inner side of the opening through a fourth sealing piece. The infusion pump of 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 embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives can occur depending upon design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. An infusion pump comprises a liquid storage device (1) and an infusion pump body (2), and is characterized in that,
the infusion pump body is provided with a sleeve (6), the liquid reservoir is provided with an opening, and the sleeve (6) of the infusion pump body is in sealing connection with the inner wall (11) at the inner side of the opening of the liquid reservoir;
the upper infusion pump housing (31) is provided with a sleeve mounting orifice (16), and the wall of the sleeve mounting orifice (16) extends outwards from the upper infusion pump housing (31);
the part of the sleeve (6) connected with the sleeve mounting hole (16) is provided with a groove (61), the third sealing piece (8) is a sealing ring positioned in the groove (61), and the sealing ring is positioned on the end face of the sleeve mounting hole (16);
the infusion pump body (2) comprises an infusion pump upper shell component (3) and an infusion pump lower shell component (4), wherein a second sealing piece (7) is arranged between the infusion pump upper shell component (3) and the infusion pump lower shell component (4);
the sleeve (6) is connected with the upper shell (31) of the infusion pump through a screw (13).
2. Infusion pump according to claim 1, characterized in that a first seal (5) is provided outside the sleeve (6), the first seal (5) being a sealing ring; the infusion pump body is in sealing connection with the inner wall (11) of the liquid reservoir through the first sealing piece (5).
3. Infusion pump according to claim 1, characterized in that the second seal (7) is a sealing ring provided at the abutment surface (411) of the lower infusion pump housing (41) and the upper infusion pump housing (31).
4. An infusion pump according to claim 3, wherein the sealing ring is injection molded integrally with the lower infusion pump housing (41).
5. An infusion pump according to claim 3, wherein the upper infusion pump housing (31) and the lower infusion pump housing (41) are secured by a screw connection.
6. Infusion pump according to any of claims 1 to 5, characterized in that a piston (10) is provided inside the opening of the reservoir (1), which piston (10) is connected to the inner wall (11) inside the opening by means of a fourth seal (9).
7. Infusion pump according to claim 6, characterized in that the fourth seal (9) is an O-ring provided outside the piston (10).
8. Infusion pump according to any one of claims 1 to 5, characterized in that the infusion pump lower housing (41) is provided with a plurality of ventilation holes (412), and the inside of the infusion pump lower housing (41) is provided with a waterproof and breathable membrane (12);
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 CN114569835A (en) | 2022-06-03 |
| CN114569835B true 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) |
Families Citing this family (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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7052251B2 (en) * | 2002-04-22 | 2006-05-30 | Medtronic Minimed, Inc. | Shape memory alloy wire driven positive displacement micropump with pulsatile output |
-
2022
- 2022-04-07 CN CN202210361394.8A patent/CN114569835B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114569835A (en) | 2022-06-03 |
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