CN209108266U - A kind of auxiliary fixing device for transfusion port plug needle - Google Patents

Abstract

The utility model discloses an auxiliary fixing device for inserting and withdrawing needles in an infusion port, which relates to the field of medical instruments. The device has an elliptical ring-shaped fixing part and a laser generator accommodated in the fixing part; The emission ports of the laser generators are evenly and symmetrically distributed on the inner side of the fixed part, the emission direction of each of the laser generators is the normal direction of the fixed part, and each group of symmetrical laser generators are individually electrically connected There is a power switch for controlling the laser generator; a finger cover is arranged on the outer side of the fixing part, and the finger cover surrounds the outer side of the fixing part. The utility model is easy to operate, not only can fix the infusion port, but also can find the center position of the puncture seat safely and accurately, improve the acupuncture efficiency, reduce the probability of accidental injury of the patient by the needle tool, and avoid the problem of the small surface area of the puncture seat. As a result, medical staff accidentally injured themselves when using the infusion port to insert and withdraw needles.

Description

Auxiliary fixation device for needle insertion and extraction in infusion port

technical field

The utility model relates to the field of medical instruments, in particular to an auxiliary fixing device used for inserting and withdrawing needles in an infusion port.

Background technique

The venous infusion port is a relatively new infusion pipeline technology, referred to as the infusion port. The infusion port is a closed infusion device that is fully implanted and embedded in the human body, including the catheter part with the tip located in the large vein and the subcutaneously implanted part. The puncture seat is a medical device.

Using modern surgical methods, the catheter is percutaneously punctured into a large human vein. According to the subclavian vein and superior vena cava, part of the catheter is buried in the subcutaneous tissue. Only a small suture wound can be seen on the skin appearance, and a protruding part of the patient's body surface can be palpated after the sutures are healed. During treatment, the needle is positioned from this protruding part, and the needle is percutaneously punctured vertically into the liquid storage tank of the puncture seat, which can facilitate the injection, avoid the stimulation and damage to the blood vessel wall, and relieve the repeated needle puncture when the blood vessel cannot be found. bitter.

The shape of the puncture seat of the implantable infusion port is mostly circular, and during the puncture operation, due to the small surface area of the protruding part, the search for the puncture hole is not accurate enough. Therefore, the medical staff is easily injured by the needle during the puncture operation. It is necessary to design an auxiliary device to reduce the probability of medical staff being stabbed. At the same time, it also has a fixed puncture seat to tighten the skin near the puncture point, so as to quickly and accurately grasp the puncture site.

Utility model content

In view of the defects existing in the prior art, the purpose of the present invention is to provide an auxiliary fixing device for inserting and withdrawing needles in an infusion port. The central position of the puncture seat improves the efficiency of acupuncture, reduces the probability of accidental injury of the patient by the needle, and also avoids the accidental injury of medical staff when using the infusion port to insert and withdraw needles due to the small surface area of the puncture seat.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is:

An auxiliary fixing device for inserting and withdrawing needles in an infusion port, comprising an elliptical ring-shaped fixing part and a laser generator accommodated in the fixing part; the emission ports of the laser generator are evenly and symmetrically distributed on the fixing part Inside, the emission direction of each laser generator is the normal direction of the fixed part, and each group of symmetrical laser generators is individually electrically connected to a power switch for controlling the laser generators; A finger cover is provided on the outer side of the fixing portion, and the finger cover surrounds the outer side of the fixing portion.

On the basis of the above technical solution, the elliptical ring structure of the fixing portion can be replaced with a circular ring structure.

On the basis of the above technical solution, the finger cover is made of silicone material; the diameter of the diameter of the finger cover gradually decreases from the outside to the inside along the axis of the finger cover.

On the basis of the above technical solutions, the inner ring of the finger cover is provided with uneven anti-slip lines.

On the basis of the above technical solution, the surface layer of the auxiliary fixing device is further coated with an antibacterial layer.

On the basis of the above technical solution, a silicone sheet is attached to the bottom of the fixing portion.

On the basis of the above technical solution, at least two positioning holes are uniformly distributed on the edge of the silicone sheet, and the positioning holes are matched with the wedge-shaped protrusions on the outer side of the fixing portion.

On the basis of the above technical solutions, the surface-to-surface connections on the auxiliary fixing device are all smooth curved surfaces.

On the basis of the above technical solution, a scale mark is provided above each of the laser generators; the scale mark is a positioning scale on the upper part of the fixing part.

Compared with the prior art, the advantages of the present utility model are:

(1) The utility model provides an auxiliary fixing device for inserting and withdrawing needles in an infusion port. The fixing part in the auxiliary fixing device cooperates with the puncture seat of the infusion port to play a fixing role. The principle that the two beams emitted by the laser generator intersect at one point can accurately find the puncture position. Further, the laser generators distributed symmetrically are located on both sides of the long axis of the ellipse; at the same time, the elliptical fixed It can be used on puncture bases of multiple specifications according to the different radius of curvature, thereby improving economic efficiency.

(2) The fixing part provided by the present invention can also be a ring-shaped structure, and the ring-shaped structure avoids a large difference in the degree of skin tension near the puncture hole for a large number of puncture seats and fixing parts corresponding to one another. , the fixation effect is more stable, and it is more suitable for small puncture holes and more accurate puncture requirements.

(3) The antibacterial layer provided by the present invention improves the safety factor of the product; and the silica gel sheet at the bottom of the fixed part that can be replaced from time to time avoids the direct contact between the fixed part and the patient's skin, and further improves the safety performance.

(4) The scale mark in the present utility model is helpful for distinguishing the initial position of the oval-shaped fixing part to perform the function, quickly selecting a suitable fixing part, improving the work efficiency, and intuitively determining the laser generator of the suitable position for selection. Location of the puncture hole.

Description of drawings

Fig. 1 is the top-view structure schematic diagram of a kind of auxiliary fixing device used for inserting and withdrawing needle of infusion port in the first embodiment of the present utility model;

Fig. 2 is one of the cross-sectional structural schematic diagrams along the short axis of a kind of auxiliary fixing device for inserting and withdrawing needles of infusion port in Embodiment 1 of the present utility model;

3 is the second schematic diagram of the cross-sectional structure along the short axis of an auxiliary fixing device for inserting and withdrawing needles in the infusion port in Embodiment 1 of the present utility model;

Fig. 4 is the partial structure schematic diagram of the inner surface of the finger cover in Embodiment 1 of the present utility model;

Fig. 5 is the top-view structure schematic diagram of the fixing part in the second embodiment of the present utility model;

6 is a schematic diagram of the local distribution of the antibacterial layer in Example 3 of the present utility model;

7 is a schematic diagram of the partial distribution of the silica gel sheet in Example 3 of the present utility model;

8 is a schematic diagram of the installation of the silica gel sheet in Embodiment 3 of the present invention;

9 is a schematic diagram of the distribution of positioning scales in Embodiment 4 of the present invention.

In the picture: 1-fixed part, 2-laser generator, 3-transmission port, 4-power switch, 5-finger cover, 6-anti-slip texture, 7-antibacterial layer, 8-silicone sheet, 9-wedge-shaped protrusion, 10 - Positioning scale.

Detailed ways

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. It should be pointed out that all drawings are exemplary representations. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The present utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

Example 1

Referring to FIGS. 1 to 4 , the embodiment of the present invention provides an auxiliary fixing device for inserting and withdrawing needles in an infusion port, which has an elliptical ring-shaped fixing portion 1 and a laser generator 2 accommodated in the fixing portion 1 . The emission ports 3 of the laser generator 2 are evenly and symmetrically distributed on the inner side of the fixed part 1, and the emission direction of each of the laser generators 2 is the normal direction of the fixed part 1, and each group The symmetrical laser generators 2 are individually electrically connected to a power switch 4 for controlling the laser generator 2 ; a finger cover 5 is provided on the outer side of the fixing portion 1 , and the finger cover 5 surrounds the fixing portion 1 The outer side is used for the medical staff to tighten the fixing part 1, so that the auxiliary fixing device cooperates with the puncture seat of the infusion port to play a fixing role. The finger cover 2 in this embodiment is not only annular, but also partially annular, which can prevent the puncture needle from accidentally injuring the medical staff during the needle insertion process.

This embodiment provides an auxiliary fixing device for inserting and withdrawing needles in an infusion port. The fixing part 1 in the auxiliary fixing device cooperates with the infusion port base to play a fixing role. Each power switch 4 is located on the fixing part 1, and each power switch 4 individually controls the corresponding group of the laser generators 2 symmetrically distributed, and the power switch 4 can be any one in the prior art, For example, a button switch; by pressing the button switch, the puncture position can be quickly and accurately found by using the principle that the two beams emitted by the laser generators 2 distributed symmetrically in the group intersect at a point, and the point is the same as the corresponding point in the symmetrical distribution of the group. The circle formed by the laser generator 2 is located in the ellipse; specifically, the number of the laser generators 2 distributed symmetrically in the group is two, which are respectively located on both sides of the long axis of the ellipse; The part 1 can be used on the puncture seat of multiple specifications according to the difference of its radius of curvature, so as to improve the economic efficiency.

In particular, the laser generators 2 located on the long axis or the short axis of the ellipse are a group, and the intersection point is the center of the ellipse.

As a further improvement and supplement to this embodiment, the finger cover 5 is made of silicone material, and the diameter of the diameter of the finger cover 5 gradually decreases from the outside to the inside along the axis of the finger cover 5; the diameter of the finger cover 5 The diameter of the outer diameter is large, so the active area of the fingers of the medical staff is correspondingly larger, and the flexibility is also higher. The silicone material has good toughness and elasticity in terms of feel, and it is not easy to be permanently deformed by external force, and the hand feels It will feel relatively smooth; therefore, further, the inner ring of the finger cover 5 is provided with uneven anti-slip lines 6 .

As a further improvement and supplement to this embodiment, the surface-to-surface connections on the auxiliary fixation device are all smooth curved surfaces, and the smooth curved surfaces avoid sudden changes in the surface-to-surface connections and cause discomfort to the patient.

Example 2

As shown in FIG. 5 , a preferred embodiment of the present invention provides an auxiliary fixing device for inserting and withdrawing needles in an infusion port. The structure and working principle of this embodiment are similar to those of Embodiment 1. The difference is that the elliptical ring-shaped structure of the fixing part 1 in this embodiment can be replaced with a circular ring-shaped structure. There is a big difference in the degree of skin tension, the fixation effect is more stable, and it is more suitable for small puncture holes and more precise puncture requirements.

Example 3

As shown in FIGS. 6 to 8 , a preferred embodiment of the present invention provides an auxiliary fixing device for inserting and withdrawing needles in an infusion port. The structure and working principle of this embodiment are similar to those of Embodiment 1 or 2. The difference between Embodiment 1 or 2 is that the surface layer of the auxiliary fixing device in this embodiment is further coated with an antibacterial layer 7, and the antibacterial layer 7 improves the safety factor of the product.

On the basis of the above technical solution, a silicone sheet 8 is attached to the bottom of the fixing part 1; the silicone sheet 8 is non-toxic and tasteless, and has no obvious harm to the human body. The direct contact between the fixing portion 1 and the injured skin is reduced, and the comfort of the injured is improved.

As a further improvement and supplement to this embodiment, at least two positioning holes are evenly distributed on the edge of the silicone sheet 8, preferably two in this embodiment, and the number of the positioning holes may also be three or four. There are even more than one, which will not be repeated here. The positioning hole is matched with the wedge-shaped protrusion 9 on the outer side of the fixing portion 1, and the protruding part of the wedge-shaped protrusion 9 can hook the silicone rubber. The sheet 8 further fixes the silicone sheet 8 on the bottom of the fixing part 1. When not in use, the silicone sheet 8 is taken off by the elasticity of the silicone sheet 8; the detachable silicone sheet 8 at the bottom of the fixing part 1 may be Replacement avoids direct contact between the fixed part 1 and the patient's skin, which further improves the safety performance and reduces the possibility of cross-infection of the injury and the patient.

Example 4

As shown in FIG. 9 , a preferred embodiment of the present invention provides an auxiliary fixing device for inserting and withdrawing needles in an infusion port. The structure and working principle of this embodiment are similar to those of Embodiment 1, 2 or 3. The difference between Embodiment 1, 2 or 3 is that in this embodiment, a scale mark is provided above each of the laser generators; The scale mark is useful for distinguishing the initial position of the elliptical fixing part 1, which can quickly select the appropriate fixing part 1, improve work efficiency, and intuitively determine the suitable laser generator for puncturing hole positioning. The present utility model is not limited to the above-mentioned best embodiment, and anyone can draw other various forms of products under the inspiration of the present utility model. The same or similar technical solutions are all within the scope of its protection.

Claims (9)

1. an auxiliary fixing device for inserting and withdrawing needles in an infusion port, it is characterized in that: the fixing part with elliptical ring type, the laser generator accommodated in the fixing part; the emission port of the laser generator is even and symmetrical Distributed on the inner side of the fixed part, the emission direction of each of the laser generators is the normal direction of the fixed part, and each group of symmetrical laser generators is individually electrically connected to a control device that controls the laser generation. The power switch of the device; the outer side of the fixing part is provided with a finger cover, and the finger cover surrounds the outer side of the fixing part. 2 . The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 1 , wherein the elliptical ring-shaped structure of the fixing portion can be replaced with a circular ring-shaped structure. 3 . 3. The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 1 or 2, wherein the finger cover is made of silicone material; the diameter of the diameter of the finger cover is along the length of the finger cover The axis gradually decreases from outside to inside. 4 . The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 3 , wherein the inner ring of the finger cover is provided with uneven anti-slip lines. 5 . 5 . The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 1 or 2 , wherein the surface layer of the auxiliary fixing device is further coated with an antibacterial layer. 6 . 6 . The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 1 or 2 , wherein a silicone sheet is attached to the bottom of the fixing portion. 7 . 7 . The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 6 , wherein at least two positioning holes are evenly distributed on the edge of the silicone sheet, and the positioning holes are matched with the The wedge-shaped protrusions on the outer side of the fixed part are connected. 8 . The auxiliary fixing device for inserting and withdrawing needles in an infusion port according to claim 1 or 2 , wherein the surface-to-surface connections on the auxiliary fixing device are all smooth curved surfaces. 9 . 9. A kind of auxiliary fixing device for inserting and withdrawing needles of infusion port according to claim 1 and 2, it is characterized in that: the top of each described laser generator is provided with scale mark; The scale mark is a positioning scale on the upper part of the fixing part.