EP4025274A1 - Medizinisches infusionsgerät - Google Patents
Medizinisches infusionsgerätInfo
- Publication number
- EP4025274A1 EP4025274A1 EP20767777.4A EP20767777A EP4025274A1 EP 4025274 A1 EP4025274 A1 EP 4025274A1 EP 20767777 A EP20767777 A EP 20767777A EP 4025274 A1 EP4025274 A1 EP 4025274A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- drip chamber
- infusion device
- functional element
- liquid
- 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.)
- Pending
Links
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
- A61M5/1411—Drip chambers
-
- 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
- A61M5/1414—Hanging-up devices
- A61M5/1418—Clips, separators or the like for supporting tubes or leads
-
- 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
- A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
- A61M5/1626—Needle protectors therefor
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- 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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
Definitions
- the invention relates to a medical infusion device for the gravity-driven transfer of a liquid in an infusion therapy, having a drip chamber housing which delimits a drip chamber for receiving the liquid, a piercing part arranged on the drip chamber housing which has a piercing tip with a lumen which is open at one end and which conducts fluid at the other is connected to the drip chamber, an adjusting device which is fluidly connected to an outlet of the drip chamber and allows manual adjustment of a flow rate of the liquid to be derived from the drip chamber, and a hose line downstream of the adjusting device, which has an inlet at one end, which is fluidly connected to an outlet the actuating device is connected, and at the other end has an outlet which is provided for draining the liquid into an access on the patient side.
- Such a medical infusion device is known from DE 20 2017 002 518 U1 and is intended for use in an infusion therapy.
- the medical infusion device can also be referred to as an infusion system or transfer system and is used for a gravity-driven transfer of a medical liquid from an infusion container containing the liquid into an access on the patient side.
- the known infusion device has a drip chamber housing which defines a drip chamber for receiving the liquid.
- a piercing part with a piercing tip is arranged at one end of the drip chamber housing.
- an adjusting device is arranged directly on the drip chamber housing.
- the piercing tip is provided for piercing a section of the infusion container provided for this purpose, the liquid in the infusion container being able to enter the drip chamber drop by drop via the lumen of the piercing tip.
- the adjusting device of the known infusion device is rotatably mounted on the drip chamber housing between different adjusting positions and is used for manual adjustment of a flow rate of the liquid to be derived from the drip chamber.
- the actuating device is connected in a fluid-conducting manner to an outlet of the drip chamber.
- the known infusion device also provides a hose line which is connected at one end to an outlet of the actuating device in a fluid-conducting manner. At the other end, the hose line has a patient connector for draining the liquid into the access on the patient side.
- the object of the invention is to provide a medical infusion device of the type mentioned at the beginning which enables particularly safe handling and use.
- This object is achieved in that a functional element is provided which is joined to a first jacket section of the hose line and has a plug-in section, the infusion device being able to be converted into a first functional state by means of manual handling of the functional element, in which the plug-in section can be releasably attached to the piercing tip is plugged. This prevents a person handling the infusion device from injuring himself at the piercing tip.
- the functional element provides the plug-in section which, in the first functional state, is detachably plugged onto the piercing tip.
- the piercing tip In the first functional state, the piercing tip is thus received in the plug-in section inaccessible to contact, which prevents injuries and ultimately enables particularly safe handling and use of the infusion device.
- the infusion device can be converted from the first functional state into at least one further functional state by means of manual handling of the functional element, in which the plug-in section is detached from the piercing tip and this is thus released.
- the infusion device can preferably be transferred to the first functional state for delivery and / or for disposal.
- the plug-in section In the first functional state, can in particular have an opening, a lumen, a recess or the like for receiving the piercing tip.
- the functional element has a holding section
- the infusion device being able to be transferred into a second functional state by means of manual handling of the functional element, in which a second jacket section of the hose line is formed with a between the first jacket section and the second jacket portion extending hose bend is releasably held on the holding portion.
- the infusion device can be initially filled with the liquid in a particularly simple and reliable manner before the actual infusion is started.
- a filling process is known as priming.
- the hose line can be arranged by means of the functional element in the second functional state with the formation of a hose bend which is intended to enable the hose line to be filled without air bubbles.
- the second jacket section is preferably a jacket section spaced apart from the first jacket section in the direction of the outlet of the hose line.
- the second jacket section particularly preferably directly adjoins the outlet of the hose line.
- the functional element provides the holding section.
- the second jacket section In the second functional state, the second jacket section is releasably held in a form-fitting and / or force-fitting manner on the holding section and can - in particular after priming - be detached manually from the holding section in a simple manner.
- the infusion device can be transferred to at least one further functional state in which the outlet of the hose line can be connected in a fluid-conducting manner, for example, to an access on the patient side.
- the holding section can be used for releasably holding the second jacket section in particular have a type of latching or clamping geometry which, in the second functional state, interacts positively and / or non-positively with the second jacket section.
- the functional element can be joined together with the first jacket section of the hose line in a form-fitting, force-fitting and / or material fit. In this case, the functional element can be joined to the first jacket section in a detachable or non-detachable manner.
- the joint connection between the functional element and the first jacket section preferably does not bring about a change in the cross section of the hose line that is significant in practical terms. In other words, the functional element does not function as an alternative or additional adjusting device for setting a flow rate of the liquid to be derived.
- the functional element preferably has no components and / or sections that can be moved relative to one another.
- the adjusting device is preferably fixed directly to the drip chamber housing and can be displaced by means of manual handling relative to the drip chamber housing between different adjusting positions for setting the flow rate.
- the adjusting device can in particular also be referred to as a precision flow regulator.
- the plug-in section has a lumen which extends into the functional element and in which the piercing tip is detachably fixed in a form-fitting and / or force-fitting manner in the first functional state.
- An inner contour of the lumen is preferably complementary to an outer contour of the piercing tip.
- a particularly simple and reliable fixation of the piercing tip in the lumen can hereby be achieved.
- the front end of the lumen is open at least at one end and to this extent has an insertion opening for inserting the piercing tip into the lumen. At the other end, the lumen can be closed, but this is not mandatory.
- a particularly ergonomic transition to the first functional state can be achieved if the lumen extends parallel to an axial direction of the first jacket section.
- the holding section has a latching element which is designed to be complementary to an outer contour of the second casing section, the second casing section being releasably latched to the latching element in the second functional state.
- This embodiment of the invention enables the second jacket section to be held in a particularly reliable manner, so that inadvertent loosening of the hose bend in the second functional state is avoided.
- the geometry of the latching element is matched to the geometry of the second jacket section.
- the hose line is preferably a conventional hose line with a circular-cylindrical cross-section, so that the latching element can accordingly be designed in the form of an axial opening, which is open in radial sections, and with a circular-cylindrical cross-section.
- the functional element has a handle section for manual handling and a protective section which protrudes laterally from the handle section and by means of which the handle section is shielded from the penetration tip when the piercing tip is inserted into the plug-in section.
- the grip section is designed in such a way that it can be gripped between the fingers of one hand, preferably between the thumb and forefinger.
- the grip section preferably has two gripping surfaces lying opposite one another and oriented in opposite directions.
- the protective section protrudes laterally from the grip section, preferably on both sides, so that any gripping surfaces of the grip section are shielded from the piercing tip when the infusion device is transferred to the first functional state.
- the protective section preferably has at least one wall section protruding from the handle section.
- the functional element is made in one piece from plastic. This embodiment of the invention ensures that the functional element can be manufactured in a particularly simple and cost-effective manner in large numbers.
- the invention also relates to a functional element for a medical infusion device according to the above description, which is provided for joining to a first jacket section of a hose line of the infusion device and a plug-in section which is provided for detachable attachment to a piercing tip of the infusion device, and / or a holding section, which is provided for releasably holding a second jacket section of the hose line, and which has a handle section for manual handling and a protective section which protrudes laterally from the handle section and by means of which the handle section is shielded from the piercing tip when the piercing tip is inserted into the plug-in section .
- FIG. 1 shows a schematic perspective illustration of an embodiment of an infusion device according to the invention which, with an embodiment of a functional element according to the invention, is attached to a hose line and is plugged onto a piercing tip,
- FIG. 2 shows the functional element according to FIG. 1 in a state fastened to the hose line and released from the piercing tip in a cut-free view rotated in perspective with respect to FIG. 1, FIG.
- FIG. 3 shows the functional element according to FIGS. 1 and 2 together with a section of the hose line joined to the functional element in a cut-away, enlarged detailed illustration
- FIG. 4 shows a further embodiment of a functional element according to the invention in a view and representation corresponding to FIG. 3.
- a medical infusion device 1 is provided for use in an infusion therapy.
- the medical infusion device 1 can also be referred to as an infusion system or transfer system and is used for a gravity-driven transfer of a medical liquid, which is not described in more detail, from an infusion container containing the liquid into an access on the patient side.
- the infusion device 1 has a drip chamber housing 2 which delimits a drip chamber K for taking up the liquid drop by drop from the infusion container and for discharging the liquid in the direction of the patient's access, which will be described in more detail below.
- the drip chamber housing 2 is designed in several parts, but this is not mandatory.
- the drip chamber housing 2 in the present case has a drip chamber lower part 3 and a drip chamber upper part 4.
- the drip chamber upper part 4 and the drip chamber lower part 3 are joined together in a fluid-tight manner at the end in a basically known manner to form the drip chamber K.
- a plastic encapsulation 5 is provided, which on the one hand ensures a fluid-tight connection between the drip chamber upper part 4 and the drip chamber lower part 3 and, on the other hand, forms a radial collar which is not designated in detail and which otherwise protrudes in the radial direction of the drip chamber K from the drip chamber housing 2.
- the infusion device 1 also has a piercing part 6 which, in a fundamentally known manner, is used to pierce a section of said infusion container provided for this purpose is provided.
- the piercing part 6 has for this purpose an unspecified piercing tip with an unspecified lumen extending through the piercing tip, which is open at one end for admitting the liquid from the infusion container and at the other end is fluidly connected to the drip chamber.
- the piercing tip can also be referred to as a piercing mandrel or spike.
- the mode of operation and the structure of the piercing part 6 are generally known, so that further details do not need to be discussed.
- the piercing part 6 is arranged directly on the drip chamber housing 2.
- the piercing part 6 is designed in one piece with the drip chamber upper part 4 and is oriented at one end so as to protrude from the drip chamber housing 2 in the axial direction of the drip chamber K.
- the infusion device 1 also has an adjusting device 7, which can also be referred to as a precision flow regulator.
- the positioning device 7 is arranged directly on the drip chamber housing 2, but this does not necessarily have to be the case.
- the adjusting device 7 is connected in a fluid-conducting manner to an outlet 8 of the drip chamber K and allows a manual setting of a flow rate of the liquid to be derived from the drip chamber K through the outlet 8. To put it simply, the adjusting device 7 acts as an adjustable throttle and ensures that the liquid can be administered at a flow rate that meets the requirements.
- the basic mode of operation and the structure of such an actuating device or such a precision flow controller are described, for example, in DE 20 2017 002 518 U1, so that reference is expressly made to the relevant disclosure there.
- the infusion device 1 also has a hose line 9 downstream of the setting device 7, which in the present case is made of a flexible plastic material.
- the hose line 9 can also be referred to as a patient line.
- the hose line 9 has an inlet 10 at one end, which is connected in a fluid-conducting manner to an outlet 11 of the actuating device 7.
- the hose line has an outlet 12 which is connected to the inlet 10 in a fluid-conducting manner and which in the present case opens into a patient connector 13 in a basically known manner.
- the length of the hose line 9 which can be seen with reference to FIG. 1 is to be understood as purely exemplary and can of course also be designed to be shorter or longer than this.
- the infusion device 1 assumes a first functional state to be described in more detail, in which a functional element 14 for the protective covering of the piercing tip is arranged in the region of the piercing part 6.
- a different state of use of the Infusion device 1 described in which the piercing part 6 and its piercing tip are released from the functional element 14 and pierced in a basically known manner to remove the liquid in the infusion container.
- the infusion device 1 is oriented vertically for this purpose according to FIG. 1, so that an unspecified axial direction of the drip chamber K is aligned parallel to a gravity vector g.
- the liquid in this state of use, the liquid, starting from the infusion container, can fall into the drip chamber K drop by drop through the lumen of the piercing tip pushed into the infusion container.
- the liquid passes from there via the outlet 8 into the actuating device 7, via its outlet 10 into the inlet 11 of the hose line 9 and from there through the patient connector 13 into the patient's access.
- the hose line 9 is usually oriented approximately vertically downwards in the state of use, starting from the inlet 11.
- the first functional state shown in FIG. 1 is related to a delivery and / or disposal of the infusion device 1 and can accordingly also be referred to as the delivery state or disposal state.
- the functional element 14 is operatively connected to the piercing part 6 in a manner which will be described in more detail, the functional and structural features of the functional element 14 being discussed first. For this purpose, reference is made in particular to FIG. 3.
- the functional element 14 has a plug-in section 15 and a holding section 16, but this does not necessarily have to be the case. In alternative embodiments, the functional element can instead only have the plug-in section or the holding section.
- the functional element 14 is manufactured in the form of a component made in one piece from plastic.
- the piercing part can instead be made in several parts.
- the functional element 14 is joined to a first jacket section 17 of the hose line 9, which is intended to be clarified in FIG. 3 with the aid of the area shown in dashed lines.
- the functional element 14 in the present case has a receiving channel that is complementary to an outer contour of the hose line 9 and, to that extent, circular-cylindrical and not designated in more detail.
- the functional element 14 is on the production side of the hose line 9 to produce the joint connection with the first jacket section 17 pushed open and firmly connected to this.
- a particularly reliable connection can be achieved, for example, if the receiving channel of the functional element 14 is additionally glued onto the first jacket section 17.
- a different connection between the functional element 14 and the first jacket section 17 can also be provided.
- the functional element 14 can be releasably pushed onto the first jacket section 17 or clipped onto the hose line 9 in the radial direction.
- the plug-in section 15 has a lumen 18 extending into the functional element 14.
- the front end of the lumen 18 opens into an insertion opening 19 with a circular cylindrical cross-section in the present case.
- the lumen 18 is closed by means of a convexly curved wall section 20 of the functional element 14.
- the lumen 18 extends parallel to an axial direction of the first jacket section 17.
- the holding section 16 has a latching element 21.
- the latching element 21 is designed in the form of a recess in a wall section of the functional element 14, which is initially not designated in detail.
- the latching element 21 has a latching geometry which is complementary to an outer contour of the hose line 9 and to that extent circular-cylindrical, which is open in sections in the radial direction.
- the radial opening in sections of the latching element 21 thus forms a radial opening 22.
- the functional element 14 also has a grip section 23.
- the handle section 23 is used for manual handling of the functional element 14 and is provided in the present case with two opposite handle surfaces 24, only one of the handle surfaces 24 being visible on the basis of FIG. 3.
- the gripping surfaces 24 of the gripping section 23 are preferably gripped between the thumb and the index finger of one hand.
- the functional element 14 also has a protective section 25 assigned to the handle section 23.
- the protective section 25 is designed in the manner of a plate and can therefore also be referred to as a protective plate.
- An unspecified normal direction of the protective plate 25 extends parallel to the axial direction of the first jacket section 17 and thus in the present case also parallel to an axial direction of the lumen 18.
- the protective plate 25 is arranged at one end of the grip section 23 in the axial direction, partial sections of the grip plate 25 projecting approximately perpendicularly from the grip surfaces 24.
- the lumen 18 extends through the protective plate 25.
- the holding section 16 is arranged on the grip plate 25, the latching element 21 being formed by means of a radial recess in the protective plate 25.
- the piercing tip of the piercing part 6 is inserted into the lumen 18 through the end-side insertion opening 19 of the lumen 18 and is releasably fixed in a form-fitting and / or force-fitting manner.
- the functional element 14 can be gripped manually on the handle section 23 in the manner described above and pulled off the piercing part 6 in the axial direction.
- the functional element 14 is displaced together with the first jacket section 17 attached to it, so that the hose line 9 is also moved along with it.
- the hose line 9 extends approximately vertically downwards starting from the inlet 10, a second jacket section 26 of the hose line 9 being detachably held on the holding section 16 of the functional element 14.
- the second jacket section 26 is detachably latched in the radial direction through the latching opening 22 in the latching element 21.
- the second jacket section 26 is arranged at a distance from the first jacket section 17 in the longitudinal direction of the hose line 9 in the direction of the outlet 12.
- Hose bend similar to the hose bend shown in FIG. 1, is formed.
- the second functional state can also be referred to as the priming state and is used to initially fill the infusion device 1 with the liquid to be administered.
- the above-described detachable mounting of the second jacket section 26 on the functional element 14 and the associated formation of the hose bend allows the hose line to be filled without air bubbles.
- the hose line 9 can be transferred to the above-described state of use, in which the patient connector 13 is connected to the patient access, in particular after prior priming by releasing the locking element 21 from the second jacket section 26.
- a further embodiment of a functional element 14a according to the invention can be seen from FIG. 4.
- the functional element 14a has a restricted scope of functions compared to the functional element 14, with only one holding section 16a being provided in the present case.
- the essential difference compared to the functional element 14 is that no plug-in section is provided.
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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019213360.6A DE102019213360A1 (de) | 2019-09-03 | 2019-09-03 | Medizinisches Infusionsgerät |
| PCT/EP2020/074642 WO2021043924A1 (de) | 2019-09-03 | 2020-09-03 | Medizinisches infusionsgerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4025274A1 true EP4025274A1 (de) | 2022-07-13 |
Family
ID=72381084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20767777.4A Pending EP4025274A1 (de) | 2019-09-03 | 2020-09-03 | Medizinisches infusionsgerät |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4025274A1 (de) |
| DE (1) | DE102019213360A1 (de) |
| WO (1) | WO2021043924A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8608414U1 (de) * | 1986-03-27 | 1986-05-07 | B. Braun Melsungen Ag, 3508 Melsungen | Schutzvorrichtung für einen Einstichdorn, insbesondere für Transfusions- oder Infusionsgeräte |
| DE8711832U1 (de) * | 1987-09-01 | 1988-01-14 | Seidel Medizin - Technik Forschung Schulung GmbH, 8035 Gauting | Schlauchklemme |
| DE19631877A1 (de) * | 1996-08-07 | 1998-02-12 | Braun Melsungen Ag | Infusionsvorrichtung |
| TW516439U (en) * | 2001-12-13 | 2003-01-01 | Jian-Wei Jung | Liquid flow controlling device capable of housing needle |
| JP5774803B1 (ja) * | 2015-02-09 | 2015-09-09 | 株式会社コバヤシ | 瓶針キャップおよび該瓶針キャップを用いた輸液セットの前処置方法 |
| US10201667B2 (en) * | 2015-03-26 | 2019-02-12 | Becton, Dickinson And Company | IV membrane attachment systems and methods |
| DE202017002518U1 (de) | 2017-05-04 | 2017-07-04 | B. Braun Melsungen Ag | Tropfkammeranordnung für ein medizinisches Infusionssystem |
-
2019
- 2019-09-03 DE DE102019213360.6A patent/DE102019213360A1/de active Pending
-
2020
- 2020-09-03 EP EP20767777.4A patent/EP4025274A1/de active Pending
- 2020-09-03 WO PCT/EP2020/074642 patent/WO2021043924A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019213360A1 (de) | 2021-03-04 |
| WO2021043924A1 (de) | 2021-03-11 |
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