Medical device for infusion or transfusion line

Abstract

The utility model relates to a kind of medical devices for infusion or transfusion pipeline, the medical device includes tubular sharp (2) for insertion into liquid container, the medical device (1) is integrated with flow regulator (3), the flow regulator is used to manually control the delivery of liquid from the sharp (2) to the infusion or transfusion pipeline by gravity, wherein the flow regulator (3) includes control wheel (7), the control wheel can rotate around the axis that is orthogonal with the axis of the sharp (2), characterized in that, the medical device includes body (4), the body is formed with the sharp (2), with lateral thrust wing (9) and with accessory (8) one-piece, the lateral thrust wing is located on the side opposite to the control wheel (7) of the flow regulator (3), and the accessory is used for the angular positioning of the control wheel (7).

Description

Technical Field

[0001] This invention relates to a medical device for infusion and infusion lines, which is of the type including a tubular tip for insertion into a liquid container and designed to connect to an infusion chamber in a fluid line. Background Technology

[0002] There are known devices of the type specified above, which are equipped with an integrated flow regulator for manually controlling the transfer of liquid by gravity from the tip to the drip chamber. Applicant documents EP1747787A1 and EP1731185A1 describe and illustrate devices made in this manner, wherein the flow regulator arranged between the drip chamber and the tip includes a control member rotatable about an axis coinciding with the axis of the drip chamber.

[0003] While functionally effective, this arrangement suffers from drawbacks due to the fact that flow regulation via rotation of the control mechanism is not entirely straightforward and typically requires the use of both hands: one hand for gripping the drip chamber and the device, and the other for rotating the control mechanism.

[0004] Documents US 7232420B1, AU 2020367791A1, and DE 8312029U1 describe a medical device equipped with a flow regulator with a control wheel. Given that such devices comprise a large number of components, they are typically complex. Utility Model Content

[0005] The purpose of this invention is to overcome this drawback and to provide a medical device of the type defined above, which is configured to make the operation of the flow regulator more practical and easier.

[0006] According to this utility model, a medical device for infusion or infusion lines is proposed. The medical device includes a tubular tip for insertion into a liquid container. The medical device is integrated with a flow regulator for manually controlling the transfer of liquid from the tip to the infusion or infusion line by gravity. The flow regulator includes a control wheel that is rotatable about an axis orthogonal to the axis of the tip. The medical device is characterized by having a body, which is formed as a one-piece with the tip, a lateral thrust wing, and an accessory. The lateral thrust wing is located on the side opposite to the control wheel of the flow regulator, and the accessory is used for angular positioning of the control wheel.

[0007] According to this utility model, this objective is achieved due to the fact that the body, the tip, the lateral thrust wing, and the appendage are formed as a single piece, the lateral thrust wing being located on the side opposite the control wheel, and the appendage being used for angular positioning of the control wheel of the flow regulator.

[0008] Because of the concept behind this design, the device can be adjusted in a practical and functional way using only one hand, by holding the infusion chamber in the palm of the hand and controlling the wheel with the same thumb.

[0009] In a preferred embodiment of this invention, the flow regulator is of the turbulent flow type, wherein the liquid is transferred through an orifice in the form of a variable-opening narrow slot via a control wheel.

[0010] The pointed tip can be either unidirectional or bidirectional with an air filter. Attached Figure Description

[0011] The present invention will now be described in detail with reference to the accompanying drawings, which are provided purely by way of non-limiting example, in which: - Figure 1 This is a side elevation view of the medical device according to the present invention. - Figure 2 This is the front elevation view of the device. - Figure 3 It is the rear elevation view of the device, and - Figure 4 This is a perspective view of the device from below. Detailed Implementation

[0012] refer to Figures 1 to 4 The medical device according to this utility model is generally designated as 1, and generally includes a tubular tip 2 and a flow regulator integrated with the tip 2, the flow regulator being generally designated as 3.

[0013] The tip 2 (which may be equipped with an axially removable protective cap) includes a rigid hollow pin, which is formed as a single piece with the body 4 of the flow regulator 3, the single piece being made of molded plastic material. The body 4 also has an annular flange 5, which can be securely attached to the infusion chamber (not shown in the figures) by any suitable system for connection to the flexible tubing of an infusion or transfusion medical line.

[0014] The flow regulator 3 is a turbulent flow regulator, which is provided in a known manner with an orifice including a narrow slot with a variable opening. This orifice is positioned to communicate with a conduit 6, which is integrally formed with the body 4 and designed to extend axially into the drip chamber. This type of turbulent flow regulator differs from conventional laminar flow regulators because the velocity of the regulated flow is proportional to the square root of the pressure drop and is not dependent on the viscosity of the fluid. Therefore, it allows for more efficient regulation of the liquid supplied from the tip 2 to the drip chamber.

[0015] The opening of the orifice of the flow regulator 3 can be changed by operating the control wheel 7, which has a scale at the front and knurled along its periphery. The control wheel can rotate about an axis orthogonal to the axis of the tip 2. The accessory 8 is also integrally formed with the body 4. The accessory 8 cooperates with the knurling of the wheel 7 to accurately angularly position or rotate the wheel after its adjustment rotation.

[0016] The pair of thrust wings 9 are also integrally formed with the body 4 as a single piece. The pair of thrust wings are located on the side of the body opposite to the wheel 7 and have the function of facilitating the introduction of the tip 2 into the puncture cap of the liquid bottle.

[0017] Given that the methods used to achieve turbulence are generally known to those skilled in the art, the structure and functional characteristics of the flow regulator 3 are not described in further detail herein: an example of such a flow regulator is manufactured and sold by Phoenix R&D Srl under the trade name "IV Regulator Dosy 2010".

[0018] The embodiments described above with reference to the accompanying drawings relate to situations where the device according to the present invention is unidirectional and includes a liquid channel through the tip 2. This approach is generally applicable if the liquid container into which the tip 2 can be inserted is open, flexible, or elastically deformable (e.g., a bag).

[0019] If the medical device is intended for use with a closed and non-deformable container (e.g., a glass bottle), the device can be bidirectional, i.e., the tip 2 is formed with a first axial channel for liquid and a second axial channel for air, the second axial channel being positioned to communicate with a vent (not shown) and an associated filter.

[0020] Due to the construction described above, the medical device according to this invention (both in unidirectional and bidirectional configurations) has the advantage that the user can easily handle and adjust the medical device using only one hand.

[0021] Furthermore, the turbulent flow regulator 3 is constructed to provide the medical device according to this invention with high precision and continuity of gravity-driven liquid flow from the tip 2 to the medical tubing, regardless of the viscosity of the liquid flow.

[0022] Optionally, the control wheel 7 may include a body 71 having a panel at its front end, and a transparent cover 72 fitted to the body against the front surface of the body 71. A plurality of through holes may be provided on the panel of the body and closed at the front end by the transparent cover 72. Optionally, the plurality of through holes may include: two circular through holes 73 positioned opposite each other along the diametrical direction of the panel; and four arcuate through holes 74 equidistant from each other in the circumferential direction and positioned radially inward of the panel relative to the circular through holes 73. The control wheel 7 includes graduations provided on the transparent cover 72.

[0023] Obviously, structural details and embodiments may vary extensively with respect to what has been described and illustrated without departing from the scope of protection of this invention as defined in the appended claims. It should be noted that the device of this invention may be provided only with the tip and associated body, or may also be provided with a drip chamber fixed to the body.

Claims

1. A medical device for an infusion or transfusion line, comprising a tubular spike (2) for insertion into a liquid container, the medical device (1) being integrated with a flow regulator (3) for manual control of the transfer of liquid by gravity from the spike (2) to the infusion or transfusion line, wherein, The flow regulator (3) includes a control wheel (7) rotatable about an axis orthogonal to the axis of the tip (2). The medical device includes a body (4) formed as a single piece with the tip (2), a lateral thrust wing (9), and an accessory (8). The lateral thrust wing is located on the side opposite to the control wheel (7) of the flow regulator (3), and the accessory is used for angular positioning of the control wheel (7).

2. The medical device according to claim 1, characterized in that, The flow regulator (3) is of the turbulent type.

3. The medical device according to claim 1 or 2, characterized in that, The pointed tip (2) is unidirectional.

4. The medical device according to claim 1 or 2, characterized in that, The pointed tip (2) is bidirectional.

5. The medical device according to claim 1 or 2, characterized in that, The control wheel (7) of the flow regulator (3) is knurled on the periphery to cooperate with the accessory (8).

6. The medical device according to claim 1 or 2, characterized in that, The control wheel includes a body having a panel at its front end and a transparent cover fitted to the body against the front surface of the body. A plurality of through-holes are provided on the panel of the body and closed at the front end by the transparent cover. The plurality of through-holes includes: two circular through-holes positioned opposite each other along the diameter of the panel; and four arc-shaped through-holes equidistant from each other in the circumferential direction and positioned radially inward of the panel relative to the circular through-holes. The control wheel includes graduations provided on the transparent cover.

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