Guiding device for infusion port puncture

Abstract

The utility model relates to the technical field of medical instruments, in particular to a guiding device for infusion port puncture, which comprises a positioning mechanism and an assembling mechanism. The positioning mechanism comprises a positioning column body, a positioning disc arranged at the lower end of the positioning column body, a limiting column body arranged at the upper end of the positioning column body and a hand push rod rotationally arranged between the positioning column body and the limiting column body. Guide holes are formed in the middles of the positioning column body, the positioning disc and the limiting column body in a penetrating mode, displacement grooves are formed in the side ends of the positioning column body, the positioning disc and the limiting column body, and the guide holes and the displacement grooves are formed in a penetrating mode; the tail ends of the first assembling belt and the second assembling belt are arranged on the two sides of the positioning column in a sliding mode respectively. The infusion port fixing device is used for stably fixing an infusion port so as to facilitate puncture, the puncture difficulty is reduced, and the puncture efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a guiding device for puncturing an infusion port. Background Art

[0002] A totally implantable intravenous port, also known as a totally implantable central venous catheter system or a fully buried drug infusion device, is referred to as an intravenous port or infusion port. It can be left in the body for a long time and buried subcutaneously throughout. It is one of the world's preferred intravenous infusion devices. It can minimize the stimulation of chemotherapy drugs on peripheral blood vessels and is widely used in tumor chemotherapy.

[0003] The focus of infusion port maintenance is mainly on non-destructive needle insertion. However, for some patients with thick subcutaneous fat or the port body that is prone to sliding, it is more difficult to locate the puncture point. Repeated puncture not only increases the patient's pain but also reduces the service life of the infusion port. For nurses who are not skilled in infusion port puncture, wearing sterile gloves during puncture makes their fingers numb. When encountering patients with unclear port bodies, they cannot determine the center of the port body well. In addition, they are not skilled in fixation techniques and are prone to sliding, which increases the psychological burden and thus affects the success rate of puncture. Utility Model Content

[0004] In order to solve the problems of the prior art, the utility model provides a guiding device for infusion port puncture.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A guide device for infusion port puncture, comprising:

[0006] The positioning mechanism includes a positioning cylinder, a positioning plate provided at the lower end of the positioning cylinder, a limiting cylinder provided at the upper end of the positioning cylinder, and a hand push rod rotatably provided between the positioning cylinder and the limiting cylinder. The positioning cylinder, the positioning plate, and the limiting cylinder are all provided with guide holes in the middle and displacement grooves at the side ends. The guide holes and the displacement grooves are provided through-through.

[0007] The assembly mechanism includes a first assembly belt and a second assembly belt that can be buckled with each other, and the ends of the first assembly belt and the second assembly belt are respectively slidably arranged on both sides of the positioning column.

[0008] As a further improvement, the hand push rod includes a limit plate and a vertical guide rod fixedly arranged on the limit plate, an arc-shaped through groove is provided on the limit column, and the vertical guide rod is slidably arranged in the arc-shaped through groove.

[0009] As a further improvement, an arc-shaped guide rod is provided at the side end of the limiting plate, an arc-shaped guide groove is provided at the upper end of the positioning column, and the lower end of the arc-shaped guide rod is slidably provided in the arc-shaped guide groove.

[0010] As a further improvement, an arc-shaped guide groove is provided on one side of the limiting plate close to the guide hole.

[0011] As a further improvement, anti-slip grooves are provided on both sides of the positioning column.

[0012] As a further improvement, assembly slots are provided on both sides of the positioning column, and T-shaped bayonet pins are provided at the ends of the first assembly belt and the second assembly belt, and the T-shaped bayonet pins are provided corresponding to the assembly slots.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In actual use of the present invention, first, gently press the skin near the infusion port with your hand to roughly obtain the position of the infusion port. Secondly, place the positioning mechanism on the skin and roughly face the position of the infusion port, gently press the positioning plate to make the skin concave, and the infusion port convex. If the positioning plate has deviation and fails to be completely put on the infusion port, or is put on but not aligned, move the positioning plate to adjust the position. When the positioning plate is aligned with the infusion port, that is, the inner guide hole is basically aligned with the puncture septum of the infusion port, the sterile cotton swab is passed through the displacement groove again and the skin inside the positioning plate is disinfected. After disinfection is completed, rotate the hand push rod clockwise as shown in the figure. The through hole formed between the hand push rod and the guide hole is the guide hole for the puncture needle. The puncture point is located in the center of the port body, which can effectively improve the success rate of puncture. Insert the puncture needle from the guide hole for puncture. After the puncture is successful, rotate the hand push rod counterclockwise, and the positioning mechanism can move back along the displacement groove, and the puncture needle remains at the upper end of the infusion port to achieve puncture.

[0015] 2. The positioning mechanism of the present invention is provided with an assembly mechanism. When the positioning mechanism is aligned with the infusion port, the positioning mechanism is fixed to the patient's body through the assembly mechanism, thereby avoiding the problem of the positioning mechanism being misplaced due to factors such as the patient's fear or the medical staff's hand shaking during the puncture process, resulting in the need for repositioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the positioning mechanism of the utility model;

[0018] Figure 3 This is a top view of the positioning mechanism of the utility model;

[0019] Figure 4 It is a partial exploded view of the positioning mechanism of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the hand push rod of the utility model.

[0021] In the figure, 1. positioning mechanism; 11. positioning cylinder; 111. arc-shaped guide groove; 112. anti-slip groove; 113. assembly slide groove; 12. positioning plate; 13. limiting cylinder; 131. arc-shaped through groove; 21. guide hole; 22. displacement groove; 3. hand push rod; 31. limiting plate; 311. arc-shaped guide groove; 32. vertical guide rod; 33. arc-shaped guide rod; 4. assembly mechanism; 41. first assembly belt; 42. second assembly belt; 51. T-shaped pin. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0024] Below with reference to the embodiment and the attached Figures 1 to 5 , the technical solution of the utility model is further elaborated.

[0025] Example 1

[0026] A guide device for infusion port puncture, comprising:

[0027] The positioning mechanism 1 includes a positioning cylinder 11, a positioning plate 12 provided at the lower end of the positioning cylinder 11, a limiting cylinder 13 provided at the upper end of the positioning cylinder 11, and a hand push rod 3 rotatably provided between the positioning cylinder 11 and the limiting cylinder 13. The positioning cylinder 11, the positioning plate 12, and the limiting cylinder 13 are all provided with a guide hole 21 in the middle and a displacement groove 22 at the side end. The guide hole 21 and the displacement groove 22 are provided through-through.

[0028] The assembly mechanism 4 includes a first assembly belt 41 and a second assembly belt 42 that can be buckled with each other. The ends of the first assembly belt 41 and the second assembly belt 42 are respectively slidably arranged on both sides of the positioning column 11.

[0029] like Figures 1 to 5As shown, in actual use of the present invention, first, lightly press the skin near the infusion port with your hand to roughly get the position of the infusion port, then place the positioning mechanism 1 on the skin and roughly face the position of the infusion port, lightly press the positioning plate 12 to make the skin concave, and the infusion port convex. If the positioning plate 12 is not completely covered on the infusion port, or is covered but not aligned, move the positioning plate 12 to adjust the position. When the positioning plate 12 is aligned with the infusion port, that is, the inner guide hole 21 is basically aligned with the puncture septum 51 of the infusion port, pass the sterilized cotton swab through the displacement groove 22 again and disinfect the skin inside the positioning plate 12. After the disinfection is completed, turn the hand push rod 3 clockwise, as shown in FIG. Figure 3 As shown, the through hole formed between the hand push rod 3 and the guide hole 21 is the guide hole for the puncture needle. The puncture point is located at the center of the port body, which can effectively improve the success rate of puncture. The puncture needle is inserted into the guide hole for puncture. After the puncture is successful, the hand push rod 3 is rotated counterclockwise, and the positioning mechanism 1 can move backward along the displacement groove 22, and the puncture needle remains at the upper end of the infusion port to achieve puncture.

[0030] Furthermore, an assembly mechanism 4 is provided on the positioning mechanism 1. When the positioning mechanism 1 is aligned with the infusion port, the positioning mechanism 1 is fixed to the patient's body through the assembly mechanism 4, so as to avoid the problem that the positioning mechanism 1 is misplaced due to the patient's fear or the medical staff's hand shaking during the puncture process, resulting in the need for repositioning.

[0031] As a further preferred embodiment, the hand push rod 3 includes a limit plate 31 and a vertical guide rod 32 fixedly arranged on the limit plate 31. An arc-shaped through groove 131 is provided on the limit column 13. The vertical guide rod 32 is slidably arranged in the arc-shaped through groove 131. During actual use, the hand push rod 3 improves its stability through the guiding effect of the vertical guide rod 32.

[0032] As a further preferred embodiment, an arc-shaped guide rod 33 is provided at the side end of the limit plate 31, and an arc-shaped guide groove 111 is provided at the upper end of the positioning column 11. The lower end of the arc-shaped guide rod 33 is slidably set in the arc-shaped guide groove 111. During actual use, the hand push rod 3 improves its stability through the guiding effect of the arc-shaped guide groove 111.

[0033] As a further preferred embodiment, an arc-shaped guide groove 311 is provided on one side of the limiting plate 31 close to the guide hole 21 to further limit the puncture hole so that the puncture point is located at the center of the port body, which can effectively improve the success rate of puncture.

[0034] As a further preferred embodiment, anti-slip grooves 112 are provided on both sides of the positioning column 11 to enhance friction and prevent the positioning mechanism 1 from sliding during use.

[0035] As a further preferred embodiment, assembly slots 113 are provided on both sides of the positioning column 11 , and T-shaped pins 51 are provided at the ends of the first assembly belt 41 and the second assembly belt 42 , and the T-shaped pins 51 are provided corresponding to the assembly slots 113 .

[0036] Specifically, such as Figure 1 As shown, medical personnel can determine whether the assembly mechanism 4 is needed for fixation according to the actual needs of the patient. During the disassembly and assembly process, it can be achieved by simply sliding the T-shaped pin 51 into or out of the assembly slot 113. The structure is simple and the operation is convenient.

[0037] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A guide device for infusion port puncture, characterized in that: include: A positioning mechanism (1), comprising a positioning column (11), a positioning plate (12) arranged at the lower end of the positioning column (11), a limiting column (13) arranged at the upper end of the positioning column (11), and a hand push rod (3) rotatably arranged between the positioning column (11) and the limiting column (13); the positioning column (11), the positioning plate (12), and the limiting column (13) are all provided with guide holes (21) in the middle and displacement grooves (22) at the side ends; the guide holes (21) and the displacement grooves (22) are provided in a continuous manner; An assembly mechanism (4) comprises a first assembly belt (41) and a second assembly belt (42) that can be interlocked, and ends of the first assembly belt (41) and the second assembly belt (42) are respectively slidably arranged on both sides of the positioning column (11).

2. A guide device for infusion port puncture according to claim 1, characterized in that: The hand push rod (3) comprises a limit plate (31) and a vertical guide rod (32) fixedly arranged on the limit plate (31); an arcuate through groove (131) is provided through the limit column (13); and the vertical guide rod (32) is slidably arranged in the arcuate through groove (131).

3. A guide device for infusion port puncture according to claim 2, characterized in that: The side end of the limiting plate (31) is provided with an arc-shaped guide rod (33), the upper end of the positioning column (11) is provided with an arc-shaped guide groove (111), and the lower end of the arc-shaped guide rod (33) is slidably arranged in the arc-shaped guide groove (111).

4. A guide device for port puncture according to claim 2 or 3, characterized in that: An arc-shaped guide groove (311) is provided on one side of the limiting plate (31) close to the guide hole (21).

5. The guide device for infusion port puncture according to claim 1, characterized in that: Anti-slip grooves (112) are provided on both sides of the positioning column (11).

6. A guide device for infusion port puncture according to claim 1 or 5, characterized in that: Assembly slots (113) are provided on both sides of the positioning column (11), and T-shaped bayonet pins (51) are provided at the ends of the first assembly belt (41) and the second assembly belt (42), and the T-shaped bayonet pins (51) are provided correspondingly to the assembly slots (113).

Images