Infusion port needle head capable of preventing cross infection

Abstract

The utility model discloses an infusion port needle head capable of preventing cross infection, which relates to the technical field of medical equipment and comprises an infusion port needle seat, a needle head is arranged at the bottom end of the infusion port needle seat, an anti-infection mechanism comprises a fixing frame fixedly connected to the bottom end of the infusion port needle seat, and the needle head extends to the bottom of the fixing frame. A shielding frame is arranged in the fixing frame, a rotating shaft is fixedly connected to the end, close to the needle head, of the front side of the shielding frame, the other end of the rotating shaft is rotationally connected with the inner side of the fixing frame, a rotating rod is fixedly connected to the end, close to the needle head, of the rear side of the shielding frame, the other end of the rotating rod is rotationally connected with the inner side of the fixing frame, and the rotating rod is sleeved with a torsional spring. One end of the torsion spring is fixedly connected with the outer side of the rotating rod, and the other end of the torsion spring is fixedly connected with the inner side of the fixing frame, so that the shielding frame covers the needle head at the moment of pulling out the needle head, the phenomenon of accidentally injuring patients or medical personnel can be avoided, and cross infection of viruses is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an infusion port needle for preventing cross-infection. Background Technique

[0002] The implantable venous infusion port is a venous vascular access that can provide long-term access for patients and is a completely implantable vascular access system. During the infusion period, medical staff need to replace the non-invasive needle of the infusion port for the patient every 7 days.

[0003] After patent retrieval, it is found that a needle for an infusion port with the publication number CN215840900U includes a needle seat, needle wings arranged on both sides of the needle seat, a steel needle vertically arranged at the bottom of the front end of the needle seat, and an infusion tube arranged at the rear end of the needle seat. The infusion tube is communicated with the steel needle; a sheath is movably connected to the front end of the needle seat, a storage groove is opened on the sheath, the steel needle can be arranged in the storage groove, a folding plate is arranged at the end of the sheath facing the inside of the storage groove, and the folding plate is used for bending the tip of the steel needle; by providing a storage groove for storing the steel needle, the steel needle is arranged in the sheath; by providing a folding plate for bending the tip of the steel needle, the tip of the bent steel needle becomes relatively blunt. Compared with the existing method of sleeving the sheath on the steel needle again, the chance of direct contact with the steel needle is reduced, which is beneficial to protecting medical staff.

[0004] Although the above patent reduces the chance of direct contact with the steel needle and is beneficial to protecting medical staff, since the infusion port needle needs to be inserted into the infusion port seat and the insertion distance is relatively deep, when the needle needs to be removed, a relatively large force is required to remove it, and the force for each removal is different, which easily causes the tip of the needle to accidentally injure the patient or medical staff, thus easily infecting the patient or medical staff. Therefore, an infusion port needle for preventing cross-infection is needed to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide an infusion port needle for preventing cross-infection.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an infusion port needle for preventing cross-infection, including an infusion port needle seat, a needle head is arranged at the bottom end of the infusion port needle seat, and an anti-infection mechanism is arranged at the bottom of the infusion port needle seat;

[0007] The anti-infection mechanism includes a fixed frame fixedly connected to the bottom end of the infusion port needle seat, and the needle extends to the bottom of the fixed frame. A shielding frame is arranged inside the fixed frame. One end of the shielding frame close to the needle on the front side is fixedly connected with a rotating shaft, and the other end of the rotating shaft is rotatably connected to the inner side of the fixed frame. One end of the shielding frame close to the needle on the rear side is fixedly connected with a rotating rod, and the other end of the rotating rod is rotatably connected to the inner side of the fixed frame. A torsion spring is sleeved on the outer side of the rotating rod. One end of the torsion spring is fixedly connected to the outer side of the rotating rod, and the other end of the torsion spring is fixedly connected to the inner side of the fixed frame.

[0008] Preferably, a locking mechanism is arranged at the bottom of the infusion port needle seat. The locking mechanism includes through holes one opened on the front and rear sides of the fixed frame. Through holes two are opened on the front and rear sides of the shielding frame. A clamping plate is jointly arranged in the through holes one and through holes two.

[0009] Preferably, the locking mechanism further includes a limiting frame fixedly connected to the front side of the infusion port needle seat. The front side of the top end of the clamping plate is rotatably connected with a round rod, and the round rod extends to the top of the limiting frame. The top end of the round rod is fixedly connected with a dial block. A through port is opened on the front side of the limiting frame.

[0010] Preferably, a baffle is fixedly connected to the top end inside the fixed frame, and the baffle is close to but not in contact with one side of the shielding frame close to the needle.

[0011] Preferably, a gauze is fixedly connected to the bottom end of the infusion port needle seat, and the bottom end of the gauze is located at the bottom of the fixed frame.

[0012] Preferably, an elastic pad is arranged on one side of the bottom end of the shielding frame away from the needle, and the elastic pad is fixedly connected to the bottom end of the shielding frame.

[0013] Beneficial effects:

[0014] Compared with the prior art, the infusion port needle for preventing cross-infection has the following beneficial effects:

[0015] First, by pinching the wing and quickly pulling out the needle upward, when the needle gradually disengages from the patient's skin, under the action of the torsion spring, the end of the shielding frame will always be in contact with the patient's skin. At the moment when the needle is pulled out, affected by the torsion spring, the shielding frame quickly covers the needle completely. At this time, the needle will not accidentally injure others. Furthermore, through the shielding frame covering the needle at the moment of pulling out the needle, this structure can avoid the phenomenon of accidentally injuring the patient or medical staff, thus avoiding the cross-infection of the virus.

[0016] Second, the utility model fixes the shielding frame by clamping the clamping plate in the first through hole and the second through hole, so as to prevent the skin of the patient from being squeezed under the influence of the torsion spring. Rotate the dial block so that the dial block moves away from the side of the through port and fits against the top of the limit frame. Under the influence of the restoring force of the torsion spring, the shielding frame is fixed at this time and will not squeeze the skin of the patient. When it is necessary to pull out the needle, rotate the dial block so that the dial block rotates to the through port. At this time, pull the dial block outwards. The dial block drives the round rod to move forward, and the round rod drives the clamping plate to move forward. Furthermore, this structure can prevent others from accidentally pulling out the clamping plate and ensure the stability of the clamping plate during infusion.

[0017] Third, the gauze of the utility model can prevent the puncture point from being covered, which is beneficial to observing the puncture point situation of the patient in time and facilitating the timely discovery of abnormal situations such as bleeding and exudation at the puncture point. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 is an exploded structural schematic diagram of the anti-infection mechanism in the utility model;

[0020] Figure 3 is a connection relationship diagram of the needle and the shielding frame in the utility model;

[0021] Figure 4 is a structural schematic diagram of the locking mechanism in the utility model.

[0022] In the figure: 1, infusion port needle seat; 2, needle; 3, anti-infection mechanism; 31, fixed frame; 32, shielding frame; 33, rotating shaft; 34, rotating rod; 35, torsion spring; 4, locking mechanism; 41, first through hole; 42, second through hole; 43, clamping plate; 44, limit frame; 45, round rod; 46, dial block; 47, through port; 5, baffle; 6, gauze; 7, elastic pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0024] As Figures 1 to 4 shown, an infusion port needle for preventing cross-infection includes an infusion port needle seat 1, and a needle 2 is provided at the bottom end of the infusion port needle seat 1. A gauze 6 is fixedly connected to the bottom end of the infusion port needle seat 1, and the bottom end of the gauze 6 is located at the bottom of the fixed frame 31. The gauze 6 can prevent the puncture point from being covered, which is beneficial to observing the puncture point situation of the patient in time and facilitating the timely discovery of abnormal situations such as bleeding and exudation at the puncture point. An anti-infection mechanism 3 is provided at the bottom of the infusion port needle seat 1;

[0025] The anti-infection mechanism 3 includes a fixed frame 31 fixedly connected to the bottom end of the infusion port needle seat 1, and the needle 2 extends to the bottom of the fixed frame 31. An occlusion frame 32 is provided inside the fixed frame 31. An elastic pad 7 is provided on one side of the bottom end of the occlusion frame 32 away from the needle 2, and the elastic pad 7 is fixedly connected to the bottom end of the occlusion frame 32. The design of the elastic pad 7 reduces the discomfort between the occlusion frame 32 and the patient's skin. One end of the front side of the occlusion frame 32 close to the needle 2 is fixedly connected to a rotating shaft 33, and the other end of the rotating shaft 33 is rotatably connected to the inner side of the fixed frame 31. One end of the rear side of the occlusion frame 32 close to the needle 2 is fixedly connected to a rotating rod 34, and the other end of the rotating rod 34 is rotatably connected to the inner side of the fixed frame 31. A torsion spring 35 is sleeved on the outer side of the rotating rod 34. One end of the torsion spring 35 is fixedly connected to the outer side of the rotating rod 34, and the other end of the torsion spring 35 is fixedly connected to the inner side of the fixed frame 31. A baffle 5 is fixedly connected to the top end inside the fixed frame 31, and the baffle 5 is close to but does not contact one side of the occlusion frame 32 close to the needle 2. The design of the baffle 5 prevents the needle 2 from being damaged or falling off due to collision when the torsion spring 35 drives the occlusion frame 32 to rotate.

[0026] During operation, when the needle 2 needs to be pulled out, pinch the wing plate and quickly pull out the needle 2 upward. When the needle 2 gradually disengages from the patient's skin, under the action of the torsion spring 35, the end of the occlusion frame 32 will always be in contact with the patient's skin. At the moment when the needle 2 is pulled out, the occlusion frame 32 is affected by the torsion spring 35 and quickly covers the needle 2 completely. At this time, the needle 2 will not accidentally injure others. Furthermore, through the structure that the occlusion frame 32 covers the needle 2 at the moment when the needle 2 is pulled out, the phenomenon of accidentally injuring the patient or medical staff can be avoided, thereby avoiding the cross-infection of the virus.

[0027] The bottom of the infusion port needle seat 1 is provided with a locking mechanism 4. The locking mechanism 4 includes a first through hole 41 opened on the front and rear sides of the fixed frame 31. Second through holes 42 are opened on the front and rear sides of the shielding frame 32. A clamping plate 43 is jointly arranged in the first through hole 41 and the second through hole 42. During operation, before pulling out the needle, the clamping plate 43 is stuck in the first through hole 41 and the second through hole 42, so that the clamping plate 43 fixes the shielding frame 32 to prevent the skin of the patient from being squeezed under the influence of the torsion spring 35. The locking mechanism 4 further includes a limiting frame 44 fixedly connected to the front side of the infusion port needle seat 1. The front side of the top end of the clamping plate 43 is rotatably connected with a round rod 45, and the round rod 45 extends to the top of the limiting frame 44. A dial block 46 is fixedly connected to the top end of the round rod 45. A through port 47 is opened on the front side of the limiting frame 44; rotate the dial block 46 so that the side of the dial block 46 away from the through port 47 fits with the top of the limiting frame 44 and is affected by the restoring force of the torsion spring 35. At this time, the shielding frame 32 is fixed and will not squeeze the skin of the patient. When the needle needs to be pulled out, rotate the dial block 46 so that the dial block 46 rotates to the through port 47. At this time, pull the dial block 46 outwards. The dial block 46 drives the round rod 45 to move forward, and the round rod 45 drives the clamping plate 43 to move forward. Furthermore, this structure can prevent others from accidentally pulling out the clamping plate 43 and ensure the stability of the clamping plate 43 during infusion.

[0028] Working principle: The design of the gauze 6 can prevent the puncture point from being covered, which is beneficial to observing the puncture point of the patient in time and facilitating the timely discovery of abnormal conditions such as bleeding and exudation at the puncture point. At the same time, before pulling out the needle, the clamping plate 43 is stuck in the first through hole 41 and the second through hole 42, so that the clamping plate 43 fixes the shielding frame 32 to prevent the skin of the patient from being squeezed under the influence of the torsion spring 35.

[0029] When the needle 2 needs to be pulled out, rotate the dial block 46 so that the dial block 46 rotates to the through port 47. At this time, pull the dial block 46 outwards. The dial block 46 drives the round rod 45 to move forward, and the round rod 45 drives the clamping plate 43 to move forward. Furthermore, this structure can prevent others from accidentally pulling out the clamping plate 43 and ensure the stability of the clamping plate 43 during infusion. Then pinch the wing plate and quickly pull out the needle 2 upwards. When the needle 2 gradually detaches from the patient's skin, under the action of the torsion spring 35, the end of the shielding frame 32 will always be in contact with the patient's skin. At the moment when the needle 2 is pulled out, the shielding frame 32 is affected by the torsion spring 35 and quickly covers the needle 2 completely. At this time, the needle 2 will not accidentally hurt others. Furthermore, this structure can avoid the phenomenon of accidentally hurting the patient or medical staff by covering the needle 2 with the shielding frame 32 at the moment of pulling out the needle 2, thus avoiding cross-infection of the virus.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An infusion port needle for preventing cross infection, comprising an infusion port needle seat (1), characterized in that: The bottom end of the infusion port needle seat (1) is provided with a needle (2), and the bottom of the infusion port needle seat (1) is provided with an anti-infection mechanism (3); The infection prevention mechanism (3) comprises a fixed frame (31) fixedly connected to the bottom end of the infusion port needle seat (1), and the needle (2) extends to the bottom of the fixed frame (31); a shielding frame (32) is provided inside the fixed frame (31); a rotating shaft (33) is fixedly connected to one end of the front side of the shielding frame (32) close to the needle (2), and the other end of the rotating shaft (33) is rotatably connected to the inner side of the fixed frame (31); a rotating rod (34) is fixedly connected to one end of the rear side of the shielding frame (32) close to the needle (2), and the other end of the rotating rod (34) is rotatably connected to the inner side of the fixed frame (31); a torsion spring (35) is sleeved on the outer side of the rotating rod (34), one end of the torsion spring (35) is fixedly connected to the outer side of the rotating rod (34), and the other end of the torsion spring (35) is fixedly connected to the inner side of the fixed frame (31).

2. The infusion port needle for preventing cross infection according to claim 1, characterized in that: A locking mechanism (4) is provided at the bottom of the infusion port needle seat (1), and the locking mechanism (4) comprises a first through hole (41) provided on both the front and rear sides of the fixing frame (31), and a second through hole (42) is provided on both the front and rear sides of the shielding frame (32), and a clamping plate (43) is provided in both the first through hole (41) and the second through hole (42).

3. The infusion port needle for preventing cross infection according to claim 2, characterized in that: The locking mechanism (4) further comprises a limit frame (44) fixedly connected to the front side of the infusion port needle seat (1); the front side of the top end of the clamping plate (43) is rotatably connected to a round rod (45), and the round rod (45) extends to the top of the limit frame (44); the top end of the round rod (45) is fixedly connected to a shift block (46); and a through opening (47) is provided on the front side of the limit frame (44).

4. The infusion port needle for preventing cross infection according to claim 1, characterized in that: A baffle (5) is fixedly connected to the top end of the fixed frame (31), and the baffle (5) is close to but not in contact with a side of the shielding frame (32) close to the needle (2).

5. The infusion port needle for preventing cross infection according to claim 1, characterized in that: The bottom end of the infusion port needle seat (1) is fixedly connected with a gauze (6), and the bottom end of the gauze (6) is located at the bottom of the fixed frame (31).

6. The infusion port needle for preventing cross infection according to claim 1, characterized in that: An elastic pad (7) is provided on the side of the bottom end of the shielding frame (32) away from the needle head (2), and the elastic pad (7) is fixedly connected to the bottom end of the shielding frame (32).

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