An infusion port needle with positioning

Abstract

An infusion port needle with positioning, which relates to the technical field of medical auxiliary appliances, comprises a positioning disc, elastic positioning strips and a needle; the needle is in a right-angled bending shape, the vertical needle body of the needle vertically penetrates through the center position of the disc surface of the positioning disc, and the horizontal needle body of the needle corresponds to and fits the top of the disc surface of the positioning disc; three elastic positioning strips are evenly arranged at intervals along the bottom edge of the positioning disc in a circumferential manner, and an included angle of 10-15° is provided between the axis in the length direction of the elastic positioning strip and the axis of the vertical needle body of the needle. The length of the elastic positioning strip is greater than the length of the vertical needle body of the needle. A medical silica gel layer is provided on the side of the elastic positioning strip corresponding to the vertical needle body of the needle, and a release paper is pasted on the surface of the medical silica gel layer; the invention effectively reduces the difficulty of puncturing the infusion port by medical staff, and at the same time, the positioning of the infusion port needle is firm and reliable, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary appliances, and in particular to an infusion port needle with positioning. Background Art

[0002] As is well known, an infusion port is a fully implanted central venous infusion composite device, which consists of an injection port and a catheter. The injection port is implanted subcutaneously and has a cavity, and the catheter punctures into the blood vessel and reaches the right atrium directly. The central venous infusion method can directly deliver drugs, blood products, nutrients, etc. to the position of the heart, and utilize the larger blood flow of the heart to quickly dilute the drugs, thus avoiding the stimulation of the blood vessels by intravenous infusion and greatly reducing the complications of infusion. Therefore, central venous infusion has become a relatively common infusion method in clinical practice; however, since the infusion port is located subcutaneously in the patient, it is difficult to accurately insert the needle into the infusion port during the puncture operation, and multiple punctures are often required, causing unnecessary pain to the patient. In addition, due to the bulge at the position of the patient's infusion port, it is difficult to fix the infusion port needle. This kind of phenomenon is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0003] In order to overcome the deficiencies in the background art, the present invention discloses an infusion port needle with positioning.

[0004] To achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions:

[0005] An infusion port needle with positioning includes a positioning disc, elastic positioning strips and a needle; the needle is in a right-angled bent shape, the vertical needle body of the needle vertically penetrates through the center position of the disc surface of the positioning disc, and the horizontal needle body of the needle corresponds to and fits with the top of the disc surface of the positioning disc; three elastic positioning strips are evenly spaced and annularly arranged at the bottom edge of the positioning disc, and there is an angle of 10-15° between the axis in the length direction of the elastic positioning strip and the axis of the vertical needle body of the needle. The length of the elastic positioning strip is greater than the length of the vertical needle body of the needle. A medical silicone layer is provided on the side of the elastic positioning strip corresponding to the vertical needle body of the needle, and a release paper is pasted on the surface of the medical silicone layer.

[0006] Preferably, the vertical needle body of the needle movably penetrates through the positioning disc. A circular groove is provided at the center position of the bottom surface of the disc surface of the positioning disc. The vertical needle body of the needle is fixedly connected with a limit disc corresponding to and matching with the circular groove of the positioning disc, and the top surface of the limit disc corresponds to and closely adheres to the bottom of the circular groove of the positioning disc. The thickness of the limit disc is less than or equal to the depth of the circular groove of the positioning disc.

[0007] Preferably, the release paper is provided with a separation area at the position corresponding to the connection between the elastic positioning strip and the positioning disc, which is convenient for separating the release paper from the medical silicone layer.

[0008] Preferably, an elastic positioning strip extends from one side of the separation area.

[0009] Preferably, a plurality of air holes are arranged in an array on the strip body of the elastic positioning strip, and the air holes penetrate through the medical silica gel layer.

[0010] Preferably, an anti-slip structure is provided on the outer circumferential surface of the positioning disc.

[0011] Preferably, the anti-slip structure is an anti-slip pattern or anti-slip particles.

[0012] Preferably, the free end of the elastic positioning strip is a rounded tip.

[0013] Preferably, the positioning disc is made of a transparent material.

[0014] Preferably, the positioning method of the needle is as follows: medical staff can hold the positioning disc so that the free ends of the three elastic positioning strips all correspond to the outer edge of the patient's infusion port, and then press the positioning disc to insert the needle into the patient's infusion port. When the bottom surface of the positioning disc contacts the patient's skin, the elastic positioning strips are laid flat and in contact with the patient's skin, so that the release paper can be separated from the medical silica gel layer, and the elastic positioning strips can be pasted and positioned through the medical silica gel layer, thereby limiting the position of the needle.

[0015] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0016] An infusion port needle with positioning disclosed by the present invention has a simple structure, is easy to assemble, and has a low production cost. Three elastic positioning strips are evenly arranged at intervals along the bottom edge of the positioning disc, and there is an angle of 10-15° between the axis in the length direction of the elastic positioning strip and the axis of the vertical needle body of the needle. The length of the elastic positioning strip is greater than the length of the vertical needle body of the needle. That is, during use, medical staff can hold the positioning disc so that the free ends of the three elastic positioning strips all correspond to the outer edge of the patient's infusion port, which can ensure that the vertical needle body of the needle is located at the center of the patient's infusion port, thereby enabling precise puncture operations, effectively reducing the puncture difficulty for medical staff, and improving the puncture success rate; after puncture, the positioning disc can contact the skin on the top of the patient's infusion port, and at the same time, the elastic positioning strips can be in adhesive contact with the outer edge of the patient's infusion port. The positioning operation is simple and convenient, and firm and reliable;

[0017] In addition, the vertical needle body of the needle penetrates through the positioning disc movably. A circular groove is provided at the center position of the bottom surface of the positioning disc. The vertical needle body of the needle is fixedly connected with a limiting disc that corresponds to and matches the circular groove of the positioning disc. The top surface of the limiting disc is in close contact with the bottom of the circular groove of the positioning disc. The thickness of the limiting disc is less than or equal to the depth of the circular groove of the positioning disc, that is, the needle can drive the limiting disc to rotate relative to the positioning disc. After the elastic positioning strip is pasted and positioned, medical staff can still adjust the horizontal needle body of the needle to avoid accidental blockage caused by the infusion catheter connected to the needle being bent and wound; the positioning disc is made of a transparent material, which can facilitate medical staff to observe the puncture situation of the needle. At the same time, during subsequent nursing operations, it can be observed whether there is exudate at the puncture position to facilitate timely treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 is a schematic structural diagram of the limiting disc;

[0021] Figure 4 is a schematic structural diagram of the ventilation hole.

[0022] In the figure: 1, positioning disc; 2, elastic positioning strip; 3, needle; 4, medical silicone layer; 5, release paper; 6, limiting disc; 7, separation area; 8, ventilation hole; 9, anti-slip structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0024] Combined with the attached Figures 1 to 4, An infusion port needle with positioning function, comprising a positioning disc 1, elastic positioning strips 2 and a needle 3; the needle 3 is in a right-angled bending shape, the vertical needle body of the needle 3 vertically penetrates through the center position of the disc surface of the positioning disc 1, and the horizontal needle body of the needle 3 is correspondingly attached to the top of the disc surface of the positioning disc 1; three elastic positioning strips 2 are evenly arranged at intervals around the bottom edge of the positioning disc 1, and there is an angle of 10-15° between the axis in the length direction of the elastic positioning strip 2 and the axis of the vertical needle body of the needle 3. The length of the elastic positioning strip 2 is greater than the length of the vertical needle body of the needle 3. That is, during use, medical staff can hold the positioning disc 1 so that the free ends of the three elastic positioning strips 2 all correspond to the outer edge of the patient's infusion port, which can ensure that the vertical needle body of the needle 3 is located at the center position of the patient's infusion port, thus enabling accurate puncture operations, effectively reducing the puncture difficulty of medical staff and improving the puncture success rate; after puncture, the positioning disc 1 can contact the skin on the top of the patient's infusion port, and at the same time, the elastic positioning strips 2 can be adhesively contacted with the outer edge of the patient's infusion port. The positioning operation is simple and convenient, and firm and reliable; as required, the outer circumferential surface of the positioning disc 1 is provided with an anti-slip structure 9, and the anti-slip structure 9 is an anti-slip pattern or anti-slip particles, which can facilitate medical staff to hold the positioning disc 1; the free end of the elastic positioning strip 2 is a rounded tip, on the one hand, it can facilitate medical staff to accurately correspond the free end of the elastic positioning strip 2 to the outer edge of the patient's infusion port, and on the other hand, it can avoid the free end of the elastic positioning strip 2 having sharp corners and causing a stabbing pain to the patient;

[0025] On one side of the elastic positioning strip 2 corresponding to the vertical needle body of the needle 3, a medical silicone layer 4 is provided, and a release paper 5 is pasted on the surface of the medical silicone layer 4. That is, during use, medical staff can remove the release paper 5 to make the medical silicone layer 4 contact and adhere to the patient's skin to position the elastic positioning strip 2 and the positioning disc 1, and further position the needle 3; as required, the release paper 5 is provided with a separation area 7 facilitating the separation of the release paper 5 from the medical silicone layer 4 at the position corresponding to the connection between the elastic positioning strip 2 and the positioning disc 1, and one side of the separation area 7 extends out of the elastic positioning strip 2. That is, medical staff can quickly separate the release paper 5 from the medical silicone layer 4 through the separation area 7, with a simple structure and convenient use; a plurality of ventilation holes 8 are arranged in an array on the strip body of the elastic positioning strip 2, and the ventilation holes 8 penetrate through the medical silicone layer 4. The ventilation holes 8 endow the elastic positioning strip 2 with good air permeability, effectively improving the comfort of the patient;

[0026] In addition, the vertical needle body of the needle 3 movably penetrates through the positioning disc 1. A circular groove is provided at the center of the bottom surface of the positioning disc 1. A limiting disc 6 corresponding to and mating with the circular groove of the positioning disc 1 is fixedly connected to the vertical needle body of the needle 3. The top surface of the limiting disc 6 is in close contact with the bottom of the circular groove of the positioning disc 1. The thickness of the limiting disc 6 is less than or equal to the depth of the circular groove of the positioning disc 1, that is, the needle 3 can drive the limiting disc 6 to rotate relative to the positioning disc 1. After the elastic positioning strip 2 is pasted and positioned, medical staff can still adjust the horizontal needle body of the needle 3 to avoid accidental blockage caused by bending and winding of the infusion catheter communicated with the needle 3; the positioning disc 1 is made of a transparent material, which can facilitate medical staff to observe the puncture condition of the needle 3, and at the same time, whether there is fluid leakage at the puncture position can be observed during subsequent nursing operations, so as to facilitate timely treatment.

[0027] When implementing the infusion port needle with positioning of the present invention, medical staff can hold the positioning disc 1 so that the free ends of the three elastic positioning strips 2 all correspond to the outer edge of the patient's infusion port, and then press the positioning disc 1 to insert the needle 3 into the patient's infusion port. When the bottom surface of the positioning disc 1 contacts the patient's skin, the elastic positioning strip 2 is laid flat and contacts the patient's skin, and then the release paper 5 can be separated from the medical silicone layer 4, so that the elastic positioning strip 2 is pasted and positioned through the medical silicone layer 4, thereby limiting the position of the needle 3.

[0028] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "rotary connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations;

[0029] The parts not detailed in the present invention are prior art. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An infusion port needle with positioning, characterized in that: It includes a positioning disc (1), an elastic positioning strip (2) and a needle (3); the needle (3) is bent at a right angle, the vertical needle body of the needle (3) vertically penetrates through the center position of the disc surface of the positioning disc (1), and the horizontal needle body of the needle (3) corresponds to and fits against the top of the disc surface of the positioning disc (1); three elastic positioning strips (2) are evenly spaced and annularly arranged on the bottom edge of the positioning disc (1), and there is an angle of 10-15° between the axis in the length direction of the elastic positioning strip (2) and the axis of the vertical needle body of the needle (3), the length of the elastic positioning strip (2) is greater than the length of the vertical needle body of the needle (3), a medical silica gel layer (4) is provided on one side of the elastic positioning strip (2) corresponding to the vertical needle body of the needle (3), and a release paper (5) is pasted on the surface of the medical silica gel layer (4); The vertical needle body of the needle (3) movably penetrates through the positioning disc (1), a circular groove is provided at the center position of the bottom surface of the disc surface of the positioning disc (1), a limiting disc (6) corresponding to and matching with the circular groove of the positioning disc (1) is fixedly connected to the vertical needle body of the needle (3), and the top disc surface of the limiting disc (6) corresponds to and closely adheres to the bottom of the circular groove of the positioning disc (1), and the thickness of the limiting disc (6) is less than or equal to the depth of the circular groove of the positioning disc (1); A separation area (7) facilitating the separation of the release paper (5) from the medical silica gel layer (4) is provided at the position where the release paper (5) corresponds to the connection between the elastic positioning strip (2) and the positioning disc (1); One side of the separation area (7) extends out of the elastic positioning strip (2).

2. The infusion port needle with positioning as described in claim 1, characterized in that: A plurality of air holes (8) are arranged in an array on the strip body of the elastic positioning strip (2), and the air holes (8) penetrate through the medical silica gel layer (4).

3. The infusion port needle with positioning as described in claim 1, characterized in that: An anti-slip structure (9) is provided on the outer circular surface of the positioning disc (1).

4. The infusion port needle with positioning according to claim 3, characterized in that: The anti-slip structure (9) is an anti-slip pattern or anti-slip particles.

5. The infusion port needle with positioning according to claim 1, characterized in that: The free end of the elastic positioning strip (2) is a circular arc tip.

6. The infusion port needle with positioning as claimed in claim 1, wherein: The positioning disc (1) is made of a transparent material.

7. The infusion port needle with positioning according to claim 1, characterized in that: The positioning method of the needle (3) is as follows: medical staff can hold the positioning disc (1) so that the free ends of the three elastic positioning strips (2) all correspond to the outer edge of the patient's infusion port, then press the positioning disc (1) to make the needle (3) penetrate into the patient's infusion port. When the bottom disc surface of the positioning disc (1) contacts the patient's skin, the elastic positioning strip (2) is laid flat and contacts the patient's skin, then the release paper (5) can be separated from the medical silica gel layer (4), so that the elastic positioning strip (2) is pasted and positioned through the medical silica gel layer (4), and further the position of the needle (3) is limited.

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