Special puncture needle auxiliary puncture outfit for venous transfusion port

Abstract

The utility model provides a puncture needle auxiliary puncture outfit special for an intravenous infusion port. The puncture needle auxiliary puncture outfit comprises a screwing piece, an abutting piece, a plurality of supporting columns, an upper opening line and a lower opening line, a plurality of screwing grooves are formed in the outer edge of the screwing piece, and a hollow hole is formed in the center of the screwing piece; the abutting piece comprises a hollow circular ring and a sliding assembly, the sliding assembly comprises a sliding rail arranged in the hollow circular ring and a sliding block matched with the sliding rail, and the sliding block is in sliding connection with the sliding rail; the circle center of the hollow circular ring and the circle center of the hollow hole are located on the same vertical line L. One end of each supporting column is fixed to the screwing piece, the other end of each supporting column is fixed to the sliding block, the upper opening line is formed in the screwing piece, and the lower opening line is formed in the hollow circular ring. And the upper opening line and the lower opening line are respectively vertical to the vertical line L. The utility model has the characteristics of simple structure and wide practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary puncture devices, in particular to a special puncture needle auxiliary puncture device for a venous infusion port. Background Art

[0002] A fully implantable intravenous port, also known as a port, is an intravenous infusion device that can be implanted subcutaneously for long-term indwelling. It consists of a puncture socket and an intravenous catheter system. It is suitable for long-term indwelling, such as for the administration of high-concentration chemotherapy drugs, total parenteral nutrition, blood products, and venous blood sampling. Without complications, it can remain in place for up to five years or even longer. Currently, in China, the main sites for port insertion are the subclavian and upper arm veins. Physicians choose one based on the patient's specific needs, including vascular condition, implant difficulty, and patient preference. Advantages of a fully implantable port include direct drug delivery via a catheter to a central vein, rapidly diluting and distributing the drug through the high local blood flow and velocity, thus preventing vascular damage from irritants, especially chemotherapy and nutritional supplements. Its small size allows for unrestricted movement, good tissue compatibility, and long-term use, making it suitable for showering and bathing. It can also reduce the pain and difficulty of repeated punctures.

[0003] However, when patients with implanted infusion ports use a dedicated puncture needle to puncture the port socket, due to individual differences (such as body shape), the implantation site of the port socket, whether the port socket has shifted due to the patient's reasons at home or when going out, and the nurse's puncture technique proficiency, the first puncture often fails, blood cannot be drawn back, and it is impossible to determine whether the puncture needle is in the correct position in the port socket. As a result, the needle must be pulled out and the puncture must be repeated or even multiple times, which increases the patient's pain and tension, wastes medical materials, and is also prone to damage the port socket and surrounding tissues.

[0004] Therefore, how to provide a special puncture needle auxiliary puncture device for intravenous infusion port to assist puncture and improve the puncture success rate is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] In view of the above problems, the present invention aims to provide a puncture needle auxiliary puncture device dedicated to a venous infusion port, which at least solves at least one of the above technical problems.

[0006] The utility model provides a puncture aid for a special puncture needle of an implantable venous access port, comprising: a screwing member, wherein a plurality of screwing grooves are arranged on the outer edge of the screwing member, and a hollow hole is formed in the central part of the screwing member; a holding member, which includes a hollow ring and a sliding assembly, the sliding assembly includes a slide rail arranged in the hollow ring and a slider adapted to the slide rail, and the slider is slidably connected to the slide rail; the centers of the hollow ring and the hollow hole are on the same vertical line L; a plurality of support columns, one end of each support column is fixed to the screwing member, and the other end of each support column is fixed to the slider; an upper opening line and a lower opening line, the upper opening line is formed on the screwing member, the lower opening line is formed on the hollow ring, the upper opening line and the lower opening line are two parallel lines, and the upper opening line and the lower opening line are respectively perpendicular to the vertical line L.

[0007] Preferably, the number of the screwing grooves is 3, and the 3 screwing grooves are arranged at equal intervals on the outer edge of the screwing member; and / or, the number of the support columns is 2, and the 2 support columns are symmetrically fixed to the screwing member with the vertical line L as the center symmetry line.

[0008] Preferably, the slider includes: an upper fixing surface, and the other end of each support column is fixed to the upper fixing surface; a lower sliding surface, sliding protrusions are arranged on both sides of the lower sliding surface, sliding grooves adapted to the sliding protrusions are formed on the slide rail, and the lower sliding surface is slidably connected to the sliding grooves on the slide rail through the sliding protrusions.

[0009] Preferably, an anti-slip layer is coated on the surface of the screwing groove.

[0010] Preferably, a sliding guide layer is coated on the surface of the sliding protrusion or the sliding groove.

[0011] Preferably, the screwing member has a hollow ring structure, the radius H of the screwing member is 15 mm, and the thickness of the screwing member is 1.5 mm.

[0012] Preferably, the width of the opening of the screwing groove is 10 mm, the central depression point of the screwing groove is point p, the vertical distance from point p to the vertical line L is h, and H - h = 3 mm.

[0013] Preferably, the radius M of the hollow hole is 6 mm, and the length of the upper opening line is H - M = 9 mm.

[0014] Preferably, the inner radius of the hollow ring is 8 mm, the outer radius is 11 mm, and the thickness is 2 mm.

[0015] Preferably, the screwing member, the abutting member, and the two support columns are all made of translucent PVC material.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The present utility model provides a puncture aid for a special puncture needle of an implantable venous access port, including: a screwing member, an abutting member, a plurality of support columns, an upper opening line, and a lower opening line. A plurality of screwing grooves are provided on the outer edge of the screwing member for the index finger, middle finger, and thumb of a medical staff to grip. A hollow hole is provided at the central part of the screwing member for the puncture needle to pass through; the abutting member includes a hollow ring and a sliding assembly. The sliding assembly includes a slide rail provided in the hollow ring and a slider adapted to the slide rail. The slider is slidably connected to the slide rail for rotating the screwing member by moving the slider; the centers of the hollow ring and the hollow hole are on the same vertical line L, so that the hollow ring and the hollow hole rotate coaxially; one end of each support column is fixed to the screwing member, and the other end of each support column is fixed to the slider for connecting the screwing member and the slider through the support column; the upper opening line is opened on the screwing member, and the lower opening line is opened on the hollow ring for removing the puncture aid through the opening line after puncture is completed, and the upper opening line and the lower opening line are respectively perpendicular to the vertical line L, so that the puncture aid for the special puncture needle of the implantable venous access port is removed through the opening line with a shorter distance.

[0018] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features, and advantages of the present utility model more obvious and understandable, the following specifically describes the embodiments of the present utility model. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of the puncture aid for the special puncture needle of the implantable venous access port of the present utility model;

[0021] Figure 2 Top view of the puncture aid for the special puncture needle of the implantable venous access port of the present utility model;

[0022] Figure 3 Left view of the puncture aid for the special puncture needle of the implantable venous access port of the present utility model. Detailed Embodiments

[0023] Next, in combination with the accompanying drawings in the embodiments of this specification, the technical solutions in the embodiments of this specification will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by this utility model; among them, the keyword "and / or" involved in this embodiment represents two situations, namely, and and or. In other words, A and / or B mentioned in the embodiments of this specification represents two situations, A and B, and A or B, describing three states existing between A and B. For example, A and / or B means: only including A but not B; only including B but not A; including both A and B.

[0024] Meanwhile, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time.

[0025] The following uses specific specific examples to illustrate the implementation manners of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific implementation manners. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0026] Please refer to Figures 1-3 , this utility model provides a puncture aid for a special puncture needle of an implantable venous access port, including: a screwing member 2, on the outer edge of the screwing member 2, there are provided a plurality of screwing grooves 1, and in the central part of the screwing member 2, there is a hollow hole; a holding member 3, the holding member 3 includes a hollow ring and a sliding assembly, the sliding assembly includes a slide rail 10 provided in the hollow ring and a slider 5 adapted to the slide rail 10, and the slider 5 is slidably connected to the slide rail 10; the center of the hollow ring and the center of the hollow hole are on the same vertical line L; a plurality of support columns 6, one end of each support column 6 is fixed to the screwing member, and the other end of each support column 6 is fixed to the slider 5; an upper opening line 7 and a lower opening line 8, the upper opening line 7 is provided on the screwing member 2, the lower opening line 8 is provided on the hollow ring, the upper opening line 7 and the lower opening line 8 are two parallel lines, and the upper opening line 7 and the lower opening line 8 are respectively perpendicular to the vertical line L.

[0027] Specifically, the present utility model provides an auxiliary puncture device for a special puncture needle of an implantable venous access port, including: a screwing member 2, a supporting member 3, a plurality of support columns 6, an upper opening line 7 and a lower opening line 8. A plurality of screwing grooves 1 are arranged on the outer edge of the screwing member for the index finger, middle finger and thumb of a medical staff to grip. The central part of the screwing member 2 has a hollow hole for the puncture needle to pass through; the supporting member 3 includes a hollow ring and a sliding assembly. The sliding assembly includes a slide rail 10 arranged in the hollow ring and a slider 5 adapted to the slide rail 10. The slider 5 is slidably connected to the slide rail 10 for rotating the screwing member 2 by moving the slider 5; the center of the hollow ring and the center of the hollow hole are on the same vertical line L, so that the hollow ring and the hollow hole rotate coaxially; one end of each of the support columns 6 is fixed to the screwing member 2, and the other end of each of the support columns 6 is fixed to the slider 5 for connecting the screwing member 2 and the slider 5 through the support columns; the upper opening line 7 is opened on the screwing member 2, and the lower opening line 8 is opened on the hollow ring for taking out the auxiliary puncture device through the opening line after the puncture is completed, and the upper opening line 7 and the lower opening line 8 are respectively perpendicular to the vertical line L, so that the auxiliary puncture device takes out the special puncture needle for the implantable venous access port with the opening line at a shorter distance.

[0028] Preferably, the number of the screwing grooves 1 is 3, and the 3 screwing grooves 1 are arranged at equal intervals on the outer edge of the screwing member; and / or, the number of the support columns 6 is 2, and the 2 support columns 6 are symmetrically fixed to the screwing member with the vertical line L as the center symmetry line.

[0029] Specifically, the present utility model selects the number of the screwing grooves 1 to be three to provide areas for the index finger, middle finger and thumb to grip, and the symmetric distribution of the two support columns 6 enables the support columns 6 to connect the screwing member 2 and the slider 5 and simultaneously provides a core supporting force for the screwing member 2.

[0030] Preferably, the slider 5 includes: an upper fixing surface, and the other end of each of the support columns 6 is fixed to the upper fixing surface; a lower sliding surface, and sliding protrusions 9 are arranged on both sides of the lower sliding surface. Sliding grooves 4 adapted to the sliding protrusions are opened on the slide rail 4, and the lower sliding surface is slidably connected to the sliding grooves 4 on the slide rail through the sliding protrusions 9.

[0031] Specifically, in the present utility model, through the sliding connection between the sliding protrusions 9 and the sliding grooves 4 on the slide rail, when the slider 5 slides along the sliding grooves 4, the screwing member 2 can be driven to rotate at an angle.

[0032] Preferably, a layer of anti-slip layer is coated on the surface of the hollow ring.

[0033] Specifically, in the present utility model, by coating an anti-slip layer on the surface of the hollow ring, the slider 5 is fixed in place after moving to the target position under the frictional resistance of the anti-slip layer. Among them, the anti-slip layer can be a matte layer.

[0034] Preferably, a sliding guide layer is coated on the surface of the sliding protrusion or the sliding groove.

[0035] Specifically, in the present utility model, by coating a sliding guide layer on the surface of the sliding protrusion 9 or the sliding groove 4, the slider 5 can slide along the slide rail 4 under the action of human force and drive the screwing member 2 to rotate at an angle.

[0036] Preferably, the screwing member 2 has a hollow ring structure, the radius H of the screwing member 2 is 15 mm, and the thickness of the screwing member 2 is 1.5 mm.

[0037] Specifically, in the present utility model, the screwing member with a suitable radius and thickness is designed so that the internal hollow hole can have a suitable radius for the port needle to pass through, and the suitable thickness makes it comfortable for medical staff to grasp the screwing groove 1.

[0038] Preferably, the slot width of the screwing groove 1 is 10 mm, the central depression point of the screwing groove 1 is point p, the vertical distance of point p relative to the vertical line L is h, and H - h = 3 mm.

[0039] Specifically, in the present utility model, the designed slot width of 10 mm and the value of H - h of 3 mm are both to provide a space that conforms to the grasping of the human finger, facilitating the grasping of the screwing groove by the index finger, middle finger and thumb of medical staff.

[0040] Preferably, the radius M of the hollow hole is 6 mm, the length of the upper opening line 7 is H - M = 9 mm, the inner radius of the hollow ring is 8 mm, the outer radius is 11 mm, and the thickness is 2 mm.

[0041] Specifically, in the present utility model, the designed radius of the hollow hole is 6 mm so that the port needle can pass through the hollow hole, and the radius of the hollow ring is greater than the radius of the hollow hole to ensure that the port needle can pass through the hollow ring. The length of the opening line 7 is 9 mm, enabling the puncture aid to be separated through the opening line with a shorter length and taken out through the opening line after puncture.

[0042] Preferably, the screwing member 2, the abutting member 3 and the two support columns 6 are all made of translucent PVC material.

[0043] Specifically, the whole of the present utility model is made of translucent PVC material. The PVC material is smooth, elastic and stretchable, facilitating the sliding of the slider 5 on the hollow ring and facilitating the opening of the puncture aid through the opening line for the removal of the puncture aid.

[0044] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the efficacy and the purpose that the present utility model can achieve, should still fall within the scope that can be covered by the technical content disclosed by the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the implementation scope of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope that the present utility model can implement.

[0045] The above are only the preferred embodiments of the present utility model and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not used to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications to the above-disclosed technical content to be equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A puncture aid for a special puncture needle of an implantable venous access port, characterized in that, Comprising: A screwing member, wherein a plurality of screwing grooves are provided on the outer edge of the screwing member, and a hollow hole is provided at the central portion of the screwing member; A resisting member, the resisting member comprising a hollow ring and a sliding assembly, the sliding assembly comprising a slide rail provided in the hollow ring and a slider adapted to the slide rail, the slider being slidably connected to the slide rail; the centers of the hollow ring and the hollow hole are on the same vertical line L; A plurality of support columns, one end of each support column being fixed to the screwing member and the other end of each support column being fixed to the slider; An upper opening line and a lower opening line, the upper opening line being provided on the screwing member and the lower opening line being provided on the hollow ring, the upper opening line and the lower opening line being two parallel lines, and the upper opening line and the lower opening line being perpendicular to the vertical line L respectively.

2. The puncture aid for a special puncture needle of an implantable venous access port according to claim 1, wherein: The number of the screwing grooves is 3, and the 3 screwing grooves are equidistantly provided on the outer edge of the screwing member; And / or, The number of the support columns is 2, and the 2 support columns are symmetrically fixed to the screwing member with the vertical line L as the center symmetry line.

3. The puncture aid for a special puncture needle of an implantable venous access port according to claim 2, wherein The slider comprises: An upper fixing surface, and the other end of each support column is fixed to the upper fixing surface; A lower sliding surface, with sliding protrusions provided on both sides of the lower sliding surface, and sliding grooves adapted to the sliding protrusions are provided on the slide rail, and the lower sliding surface is slidably connected to the sliding grooves on the slide rail through the sliding protrusions.

4. The puncture aid for a special puncture needle of an implantable venous access port according to claim 3, wherein A non-slip layer is coated on the surface of the screwing groove.

5. The puncture aid for a special puncture needle of an implantable venous access port according to claim 4, wherein, A sliding guide layer is coated on the surface of the sliding protrusion or the sliding groove.

6. The puncture aid for a special puncture needle of an implantable venous access port according to claim 5, wherein, The screwing member has a hollow ring structure, the radius H of the screwing member is 15 mm, and the thickness of the screwing member is 1.5 mm.

7. The puncture aid for a special puncture needle of an implantable venous access port according to claim 6, wherein, The grooving width of the screwing groove is 10 mm, the central depression point of the screwing groove is point p, and the vertical distance of point p relative to the vertical line L is h, and H - h = 3 mm.

8. The puncture aid for a special puncture needle of an implantable venous access port according to claim 7, characterized in that, The radius M of the hollow hole is 6 mm, and the length of the upper opening line is H - M = 9 mm.

9. The puncture aid for a special puncture needle of an implantable venous access port according to claim 8, wherein, The inner radius of the hollow ring is 8 mm, the outer radius is 11 mm, and the thickness is 2 mm.

10. The puncture aid for a special puncture needle of an implantable venous access port according to claim 9, characterized in that, The screwing member, the resisting member and the two support columns are all made of translucent PVC material.

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