CN209137596U - Self-pressing type application - Google Patents

Abstract

The utility model discloses a self-pressure type applicator, which comprises an applicator body used for adhering and fixing an indwelling needle, a protruding extruding portion is provided on the side of the applicator body with an adhesive effect, and the extruding portion is The position of the indwelling needle corresponds to the punctured site of the indwelling needle; the pressing part is used to press the joint between the indwelling needle and the skin. The utility model can squeeze the junction between the indwelling needle and the skin, improve the fit between the applicator, the indwelling needle and the skin, thereby greatly improving the fixation effect of the applicator on the indwelling needle.

Description

self-pressure applicator

technical field

The utility model relates to the technical field of medical appliances, in particular to a self-pressure type applicator.

Background technique

The application of indwelling needles in clinical infusion can reduce the pain caused by repeated arterial/venous puncture and the fear of injections, facilitate clinical medication and rescue medication for emergency and critically ill patients, and at the same time reduce the workload of nurses and reduce patient pain. Therefore, indwelling needles are widely used in clinical practice.

In actual operation, the indwelling needle is generally inserted into the skin first, and then the indwelling needle is fixed with an applicator. However, there are often several problems with the commonly used clinical applicator: (1) Due to the flat structure of the applicator, it cannot be compared with the indwelling needle. The three-dimensional structure of the needle is completely matched and fitted, and there is a large gap between the indwelling needle and the skin, and the fixation effect of the indwelling needle is not good; (2) There is no relative positioning between the application and the indwelling needle, which requires empirical judgment. The problem of being anterior or posterior leads to a large difference in the fixation effect; (3) The puncture point is located deep in the center of the applicator, which makes nursing difficult; (4) If the bleeding at the puncture point is encountered, the blood can cause the adhesiveness of the applicator to decrease, and further Cause the indwelling needle to fall off; (5) The straight indwelling needle has no extended liquid channel, and the connecting infusion tube connector is wrapped in the applicator, making it difficult to replace the connecting infusion tube; (6) The extended liquid channel of the Y-shaped needle is partially wrapped around the infusion tube. In the applicator, when it is stretched, the applicator will be peeled off, causing the indwelling needle to fall off; (7) After the indwelling needle is indwelled, the interface between the indwelling needle and the skin is a weak area, which is easily broken by external force; (8) After the puncture fails or the needle is pulled out, a special person needs to press and observe for a long time to prevent bleeding and hematoma, which will affect the nursing efficiency. To sum up, in the current clinical work, the use of infusion applicators has been quite popular, but in practice there are still various defects such as easy shedding, discounted effects, and low efficiency. Therefore, it is necessary to find and develop a more perfect low-cost solution. A plan is very necessary.

Utility model content

The utility model discloses a self-pressure type applicator, which can improve the fit between the applicator, the indwelling needle and the skin by squeezing the joint between the indwelling needle and the skin, thereby greatly improving the effect of the applicator on the indwelling needle. Pinning effect.

For achieving the above object, the technical scheme of the present utility model is:

A self-pressure type applicator, comprising an applicator body for bonding and fixing an indwelling needle, a protruding extruding portion is provided on the side of the applicator body with an adhesive effect, and the position of the extruding portion is the same as that of the indwelling needle The position where the needle body is punctured corresponds; the pressing part is used for pressing the joint between the indwelling needle and the skin.

Further, the extrusion part is built with a polymer water-absorbing swelling material, and the side of the extrusion part in contact with the skin is made of a water-permeable material.

Further, a seam A is formed in the middle of the applicator body, the position of the seam A corresponds to the indwelling needle needle seat, and the seam A is used to accommodate the indwelling needle needle seat.

Further, a slit B is formed in the middle of the applicator body, the slit B extends from the rear of the pressing portion to the edge of the applicator body, and the direction of the slit B is the same as that of the indwelling needle.

Further, one or both sides of the rear end of the seam B is provided with a tab facing the opposite side.

Preferably, the shape of the applicator body includes a circle, a polygon and an irregular shape.

Preferably, the shape of the extrusion part includes circle, polygon and irregular shape.

Preferably, the shape of the slit A includes a straight line, an arc, a hole and a polygon.

Preferably, the shape of the slit B includes a straight line, an arc shape and a wave shape.

The self-pressure application described above has the following advantages:

(1) When using, align the position of the extrusion part with the junction of the indwelling needle and the skin, and then paste the application body. The extrusion part has two functions: A. It is equivalent to a pinhole indication sticker: it can guide The applicator body is pasted and fixed at an appropriate position; B. Attached to the puncture site of the indwelling needle, which has a certain hardness and toughness so that the part where the indwelling needle enters and exits the skin can fit the skin better, and the application, the indwelling needle and the skin As a whole, it prevents the weak part (the junction between the indwelling needle and the human skin inside and outside) from being compromised by external shear forces.

(2) The utility model further builds a polymer water-absorbing swelling material in the extrusion part. When encountering bleeding, the polymer water-absorbing swelling material can rapidly expand in the presence of water to absorb blood and expand, and then apply the body on the surface layer. The pressure is applied downward to the bleeding point under the limit of the tension of the device, which achieves the purpose of compressing and hemostasis. At the same time, because the polymer water-absorbing swelling material absorbs the blood, there is no problem that the adhesive force of the applicator body decreases due to the existence of liquid.

(3) The utility model further adopts a unique middle slit design, the slit conforms to the three-dimensional curvature of the indwelling needle needle seat, seamlessly fits the needle seat, and reduces the possibility of the applicator falling off due to the shaking of the needle seat.

(4) The utility model further adopts the unique rear horizontal slit design, the liquid channel at the rear of the indwelling needle is independent, and the application on both sides of the slit can be partially overlapped and crossed to fix the indwelling needle tail/wing, so as to ensure that the application only fixes the needle. body, thereby ensuring the integrity and firmness of the needle body as a whole, preventing the indwelling needle from shifting or even falling off due to the reduction of the sticking ability of the applicator body due to the pulling of the liquid channel, and the external liquid channel is replaced for the infusion tube. Transfer is also fully facilitated.

(5) The utility model has the advantages of simple structure, low cost, high identification, high cleanliness and high use efficiency, can achieve the purpose of reliable fixation, spontaneous hemostasis, and convenient nursing, guarantees the life safety of patients, and is suitable for clinical use. Widespread application in work.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic diagram of the use structure of the present invention.

In the figure, the pressing part 1 , the applicator body 2 , the seam B3 , the seam A4 , the indwelling needle needle body 5 , the indwelling needle needle seat 6 , and the liquid channel 7 .

Detailed ways

A self-pressure applicator, as shown in FIG. 1, includes an applicator body 2 for bonding and fixing the indwelling needle. The side of the applicator body 2 with the adhesive effect is provided with a protruding extrusion part 1, and the extrusion part 1 is made of a material with certain hardness and toughness, the position of the extruding part 1 corresponds to the punctured part of the indwelling needle body 5, and the extruding part 1 is used to press the joint between the indwelling needle and the skin. When in use, align the position of the pressing part 1 with the junction of the indwelling needle and the skin, and then paste the applicator body 2. At this time, the pressing part 1 has two functions: (1) It is equivalent to a pinhole indicator sticker : It can guide the applicator body 2 to be pasted and fixed at an appropriate position; (2) It is attached to the puncture site of the indwelling needle. Due to its certain hardness and toughness, it can withstand the part where the indwelling needle enters and exits the skin, so that the indwelling needle It can better fit the skin, and the indwelling needle of the applicator body 2 is integrated with the skin to prevent the weak part (the joint between the indwelling needle and the human skin) from being reduced under the external shear force.

In order to prevent the exudation of blood during bleeding, the sticking function of the applicator body will be reduced, the extrusion part 1 is built with a polymer water-absorbing swelling material, and the side of the extrusion part in contact with the skin is made of a water-permeable material. Using the feature that the polymer water-absorbing swelling material can rapidly expand in contact with water, it absorbs blood and swells, and then exerts downward pressure on the bleeding point under the tension limit of the surface applicator body 2, so as to achieve the purpose of compressing and hemostasis. The swelling material absorbs blood, so there is no problem that the adhesive force of the applicator body decreases due to the presence of liquid.

Since the indwelling needle needle seat is relatively prominent, its shaking may cause the sticking effect of the application. Therefore, in this embodiment, a seam A4 is further opened in the middle of the applicator body 2, and the position of the seam A4 corresponds to the indwelling needle needle seat 6. A is used to accommodate the indwelling needle holder. When in use, as shown in FIG. 2 , the seam A4 conforms to the three-dimensional curvature of the indwelling needle holder 6 , and seamlessly fits the indwelling needle holder 6 around the periphery of the indwelling needle holder 6 , reducing the shaking of the indwelling needle holder 6 . Possibility of causing the applicator to fall off.

In order to further improve the sticking effect, in this embodiment, a slit B3 is also opened in the middle of the applicator body 2. The slit B3 extends from the rear of the extrusion part to the edge of the applicator body 2, and the direction of the slit B3 is the same as that of the indwelling needle. Of course, when the seam A4 is opened, the seam B3 extends from the seam A4 to the edge of the applicator body 2. As shown in FIG. 2, when in use, the seam B3 is opened first, and then goes around the indwelling needle holder 6, and mutually It is superimposed and attached to the opposite side to ensure that the applicator body 2 only fixes the indwelling needle needle body 5, thereby ensuring the integrity and firmness of the needle body as a whole, and preventing the indwelling needle from being lowered due to the pulling of the liquid channel 7 that reduces the sticking ability of the applicator body 2 Displacement or even falling off occurs, and the external liquid channel also fully provides convenience for the replacement of the infusion tube. The figure shows the sticking of the Y-shaped needle. Similarly, the sticking of the straight indwelling needle also bypasses the indwelling needle needle seat 6 and directly sticks the applicator body 2 on the skin. On this basis, the seam B3 can be improved. For more convenient pasting, one or both sides of the rear end of the seam B3 can be provided with a sticker facing the opposite side.

After the self-pressure applicator is used, the indwelling needle can be pulled out, the indwelling needle can be pulled out from seam A4 and seam B3, the applicator still remains on the skin, and the pressing part can keep pressing the needle hole. , to prevent bleeding and hematoma, no need for a special person to press the needle hole, which improves the nursing efficiency.

Of course, the applicator body 2 comes from various existing applicators. Generally, it is pasted on the separator before use, and is protected by a paper material around it. When in use, the paper material can be pasted on the top of the applicator body 2. Write the date etc. The shape of the applicator body 2 may include circular, polygonal and irregular.

In this embodiment, the extrusion part can take various shapes, including circular, polygonal and irregular.

The shape of the seam A can correspond to various shapes that can match the indwelling needle needle seat 6, including a straight line, an arc, a hole and a polygon. Then the shape of the slit B can also be various, including a straight line, an arc and a wave.

Claims (9)

1. A self-pressure type applicator, comprising an applicator body for bonding and fixing an indwelling needle, characterized in that a protruding extruding portion is provided on the side of the applicator body with an adhesive effect, and the extruding portion is The position of the indwelling needle corresponds to the position where the needle body of the indwelling needle is punctured; the pressing part is used to press the joint between the indwelling needle and the skin. 2 . The self-pressure type applicator according to claim 1 , wherein a polymer water-absorbing swelling material is built in the pressing portion, and the surface of the pressing portion that contacts the skin is made of a water-permeable material. 3 . 3. The self-pressure applicator according to claim 1, wherein a seam A is formed in the middle of the applicator body, the position of the seam A corresponds to the indwelling needle seat, and the seam A is used for Holds the indwelling needle hub. 4 . The self-pressing applicator according to claim 1 , wherein a slit B is formed in the middle of the applicator body, and the slit B extends from the rear of the pressing portion to the applicator body. 5 . , the direction of seam B is the same as the direction of the indwelling needle. 5 . The self-pressure applicator according to claim 4 , wherein one or both sides of the rear end of the seam B is provided with a sticking ear facing the opposite side. 6 . 6. The self-pressure applicator according to claim 1, wherein the shape of the applicator body includes a circle and a polygon. 7 . The self-pressure applicator according to claim 1 , wherein the shape of the pressing portion includes a circle and a polygon. 8 . 8 . The self-pressure application according to claim 3 , wherein the shape of the seam A includes a straight line, an arc, a hole and a polygon. 9 . 9 . The self-pressure applicator according to claim 4 , wherein the shape of the seam B includes a straight line, an arc and a wave. 10 .