Venous indwelling needle capable of preventing bleeding at puncture position

Abstract

The venous indwelling needle comprises an indwelling needle body, a connecting piece used for covering a needle inlet point and skin around the needle inlet point is fixedly connected to a connecting pipe of the indwelling needle body, a bag body is arranged on the face, facing the skin, of the connecting piece and corresponds to the needle inlet point, a hemostasis piece is arranged in the bag body, and a protrusion is formed on the portion, on the connecting piece, of the bag body; the connecting piece is further provided with pasting pieces used for pasting the connecting piece and the skin, the pasting pieces are arranged on the two sides of the indwelling catheter, and the size of the bag body protrusion is larger than the thickness of the pasting pieces. The face, facing the skin, of the connecting piece is provided with release paper which adheres to the pasting piece and covers the bag body. When the indwelling needle is punctured into a vein or an artery, a compression hemostasis effect can be achieved on a needle insertion point, so that the needle insertion point is prevented from bleeding; the infusion apparatus is suitable for clinical medicine and is suitable for patients needing long-term infusion.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, in particular to a venous indwelling needle for preventing bleeding at a puncture site. Background Art

[0002] Intravenous indwelling needles are used for infusion of patients, which can reduce the pain of repeated venous punctures. Figure 1 As shown, it includes a positive pressure liquid inlet tee 1 and a puncture tee 2, which are connected by an extension tube 3, and a tube sealing clamp 4 is arranged on the extension tube 3; a connecting tube 5 is arranged at the end of the puncture tee 2 away from the extension tube 3, and an indwelling catheter 6 is arranged on the connecting tube 5, and a steel needle fixedly connected to the needle holding handle 7 is arranged in the indwelling catheter 6. When in use, after the indwelling needle is inserted into the vein or artery, the steel needle is withdrawn, and the indwelling catheter 6 is left in the vein or artery, and then a transparent dressing is used to fix the puncture tee 2 and the needle insertion point. The transparent dressing is a sterile dressing with good adhesion. When pasted, it can cover the needle insertion point and the skin around it, which can effectively prevent contaminants from entering the needle hole and reduce the risk of bacterial infection.

[0003] However, there may be bleeding at the insertion point of the indwelling needle. For example, the skin of the elderly is loose and the blood vessels are less elastic, which are easily ruptured and bleeding under the stimulation of the needle tip; or when the patient's activities are large, the bending of the indwelling catheter 6 will also cause bleeding. If the bleeding is not stopped in time, it will cause local infection. Generally, when stopping bleeding, the transparent dressing needs to be torn off, and then wiped and pressed with a cotton ball to stop bleeding, which is time-consuming and laborious; in addition, if the transparent dressing is torn off midway, in order to ensure the cleanliness of the local skin and avoid infection, a new indwelling needle needs to be replaced, which not only causes waste, but also makes the patient suffer the pain of venipuncture again. Utility Model Content

[0004] In order to solve the above deficiencies in the prior art, the utility model aims to provide a venous indwelling needle that prevents bleeding at the puncture site, so as to solve the problem that the insertion point is prone to bleeding after the indwelling needle is fixed.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A venous indwelling needle for preventing bleeding at a puncture site comprises an indwelling needle, a connecting piece for covering an insertion point and the skin around the needle being fixedly connected to a connecting tube of the indwelling needle, a bag body being arranged on a side of the connecting piece facing the skin and corresponding to the insertion point, a hemostatic piece being arranged in the bag body, and a bulge formed on the bag body on the connecting piece; an adhesive piece for bonding the connecting piece to the skin is also arranged on the connecting piece, the adhesive piece is arranged on both sides of the indwelling catheter, and the size of the bulge of the bag body is greater than the thickness of the adhesive piece; a release paper adhering to the adhesive piece and covering the bag body is arranged on the side of the connecting piece facing the skin.

[0007] As a limitation of the utility model: a fixing sleeve is sleeved on the connecting tube of the indwelling needle, the inner diameter of the fixing sleeve is matched with the outer diameter of the connecting tube, a platform is arranged on the fixing sleeve, and the connecting piece is fixedly connected to the platform.

[0008] As a further limitation of the utility model: the adhesive piece is medical glue, and two groups of adhesive pieces are provided, and the two groups of adhesive pieces are symmetrically arranged on both sides of the indwelling catheter.

[0009] As another limitation of the present invention: the hemostatic piece is hemostatic cotton or sterile gauze.

[0010] As a further limitation of the present invention: the connecting piece is made of sterile gauze.

[0011] As another limitation of the present invention: an opening is provided near the connecting tube for the connecting piece to fully fit the connecting piece against the skin, and two openings are provided, one on the left side and one on the right side of the bag body, and the two openings are both provided along the radial direction of the connecting tube.

[0012] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0013] (1) The utility model is an improvement on the intravenous indwelling needle in the prior art. The specific improvement is to add a connecting piece, which is fixed on the connecting tube. A bag body for placing a hemostatic piece is provided on the connecting piece. The bag body corresponds to the needle insertion point and is raised toward the skin. An adhesive piece is also provided on the connecting piece. The adhesive piece is provided on both sides of the indwelling catheter. When in use, after the indwelling needle is inserted into the artery or vein, the release paper is torn off and the adhesive pieces on both sides of the indwelling catheter are pasted on the skin. Finally, the puncture tee and the connecting piece are covered and pasted with a transparent dressing. Since the bag body forms a convex structure and the size of the bag body convexity is larger than the thickness of the adhesive piece, when the adhesive piece is pasted, the bag body will squeeze the needle insertion point to achieve the effect of compressing and stopping bleeding, which can solve the problem that the needle insertion point is prone to bleeding when only a transparent dressing is used for fixation in the prior art.

[0014] (2) In the present invention, the connecting piece is connected to the connecting pipe via a fixing sleeve, and a platform is provided on the fixing sleeve to increase the fixing area between the fixing sleeve and the connecting piece, thereby ensuring that the fixing sleeve and the connecting piece are firmly connected.

[0015] In summary, after the indwelling needle is inserted into a vein or artery, the utility model can exert compression and hemostasis effect on the needle insertion point, thereby preventing bleeding at the needle insertion point; the utility model is suitable for use in clinical medicine and is suitable for patients who require long-term infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a structural schematic diagram of an indwelling needle in the prior art;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0020] Figure 4 This is a schematic diagram of the structure of the indwelling needle and the fixing sleeve in Example 1 of the utility model;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of part B;

[0022] Figure 6 This is a schematic diagram of the structure of the fixing sleeve in Embodiment 1 of the present utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the connecting piece in Example 1 of the utility model;

[0024] Figure 8 for Figure 7 Sectional view along CC direction;

[0025] Fig. 9 This is a schematic diagram of the structure of the inner surface of the connecting sheet in Example 1 of the utility model (the release paper is not shown);

[0026] Fig.10 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0027] Fig.11 for Fig.10 Enlarged schematic diagram of part D in the figure.

[0028] In the figure: 1-positive pressure liquid inlet tee, 2-puncture tee, 3-extension tube, 4-tube sealing clamp, 5-connecting tube, 6-indwelling catheter, 7-needle holding handle, 8-connecting piece, 81-inner surface, 82-outer surface, 9-bag body, 10-hemostatic piece, 11-adhesive piece, 12-fixing sleeve, 121-platform, 13-opening. DETAILED DESCRIPTION

[0029] The preferred embodiment of the utility model is described below in conjunction with the accompanying drawings. It should be understood that the intravenous indwelling needle for preventing bleeding at the puncture site described here is a preferred embodiment, which is only used to illustrate and explain the utility model and does not constitute a limitation of the utility model.

[0030] The directional terms or positional relationships such as "left" and "right" described in the embodiments are based on the drawings in the specification of the utility model. Figure 3The orientation relationship is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the content protected by the present invention.

[0031] Example 1

[0032] like Figure 2 to Figure 9 As shown, in this embodiment, a connecting piece 8 is added to the indwelling needle, and a bag body 9 and an adhesive piece 11 are arranged on the connecting piece 8. A hemostatic piece 10 is placed in the bag body 9. The bag body 9 forms a bulge on the connecting piece 8. When the indwelling needle is inserted into the artery or vein, when the adhesive pieces 11 on both sides of the indwelling catheter 6 are pasted to the skin, the bag body 9 will squeeze the needle insertion point to achieve the effect of compression hemostasis; in this embodiment, the needle insertion point refers to the position of the needle hole on the skin after the indwelling needle is inserted.

[0033] like Figure 2 , Figure 4 As shown, the structure of the indwelling needle is a prior art and will not be described in detail in this embodiment. A fixing sleeve 12 is sleeved on the connecting tube 5 of the indwelling needle, and the inner diameter of the fixing sleeve 12 is matched with the outer diameter of the connecting tube 5. Here, matching means that the inner diameter of the fixing sleeve 12 is slightly smaller than the outer diameter of the connecting tube 5, so that an interference fit is formed between the fixing sleeve 12 and the connecting tube 5, ensuring that the fixing sleeve 12 is fixed on the connecting tube 5.

[0034] like Figure 2 , Figure 5 , Figure 6 As shown, a platform 121 is provided on the fixing sleeve 12. In this embodiment, the connecting piece 8 is fixed on the platform 121 of the fixing sleeve 12 by bonding. The platform 121 can increase the bonding area and ensure the stability of the connection. Of course, if the connecting piece 8 is small in size and there is no need to increase the bonding area through the platform 121, the connecting piece 8 can also be directly bonded to the connecting tube 5 of the indwelling needle.

[0035] The connecting sheet 8 is used to cover the needle insertion point and the surrounding skin. Figure 7 , Fig. 9 As shown, in this embodiment, the connecting sheet 8 is a sheet structure made of sterile gauze, and of course it can also be made of cotton cloth. The side of the connecting sheet 8 facing the skin, that is, the inner surface 81, is provided with a bag body 9. In this embodiment, the bag body 9 is made of sterile gauze and is sewn and fixed on the inner surface 81 of the connecting sheet 8. A hemostatic element 10 is placed in the bag body 9. Figure 8 In this embodiment, the hemostatic member 10 is a hemostatic cotton, which can also be replaced with sterile gauze, as long as it is clean and hygienic and can absorb blood. The bag body 9 filled with hemostatic cotton forms a protrusion on the connecting piece 8. When in use, the bag body 9 corresponds to the needle insertion point and is used to compress the needle insertion point to stop bleeding.

[0036] like Figure 8, Fig. 9 As shown, adhesive pieces 11 are arranged on both sides of the indwelling catheter 6, and are used to bond the connecting piece 8 to the skin. In the present embodiment, there are two groups of adhesive pieces 11, both of which are made of medical glue and are coated on the left and right sides of the connecting piece 8, and the two groups of adhesive pieces 11 are symmetrical about the indwelling catheter 6; the adhesive pieces 11 in the present embodiment only need to be distributed on both sides of the indwelling catheter 6. When in use, after the adhesive pieces 11 on the left and right sides are glued to the skin, the bag body 9 corresponds to the needle entry point. It should be noted that the raised dimension h of the bag body 9 is greater than the thickness g of the adhesive piece 11. The function of this structure is: when the adhesive piece 11 is bonded to the skin, because the raised dimension h of the bag body 9 is larger, the bag body 9 will squeeze the needle entry point, which has the effect of compressing and stopping bleeding. It should be supplemented that the hemostatic piece 10 and the adhesive piece 11 are made of different materials. Figure 8 The use of the same section line in the two figures is only for the convenience of expression and does not constitute a limitation on the material.

[0037] The adhesive member 11 in this embodiment can also be made of a semi-permeable membrane adhesive material as long as it can adhere to the skin; the adhesive member 11 in this embodiment can also be replaced with another structure, for example, a medical tape is fixed on the outer surface 82 of the connecting piece 8 along the left and right directions, and the left end of the medical tape extends out of the left edge of the connecting piece 8, and the right end of the medical tape extends out of the right edge of the connecting piece 8, to ensure that when the two ends of the medical tape are adhered to the skin, the connecting piece 8 can fit the skin, and the bag body 9 can squeeze the needle insertion point.

[0038] In order to improve this embodiment, a release paper is provided on the side of the connecting sheet 8 facing the skin, that is, the inner surface 81, which is adhered to the adhesive piece 11 and covers the bag body 9. The release paper covers the part of the connecting sheet 8 that is not fixed to the fixing sleeve 12. The functions of the release paper are: first, to prevent the bag body 9 and the connecting sheet 8 from being contaminated after contacting the environment or the hand; second, to protect the adhesive surface to ensure that the adhesive piece 11 can be firmly attached to the patient's skin when in use; third, the release paper contains silicone oil and can be easily torn off when in use. Since the release paper is a prior art, its structure and use method will not be described in detail.

[0039] When using this embodiment, open the connecting piece 8, insert the indwelling needle into the artery or vein, tear off the release paper on the connecting piece 8 after insertion, and stick the connecting piece 8 on the skin through the left and right adhesive pieces 11. When the left and right adhesive pieces 11 are close to the skin and stick, the bag body 9 filled with hemostatic cotton covers the needle insertion point. Because the bag body 9 is a convex structure, the bag body 9 will inevitably squeeze the needle insertion point to achieve the effect of compression and hemostasis. After the connecting piece 8 is fixed, the puncture tee 2 and the connecting piece 8 can be covered and pasted with a transparent dressing.

[0040] Compared with the prior art that only uses a transparent patch to fix the puncture tee 2 and the needle insertion point, this structure adds a connecting piece 8 and a bag body 9 and other structures on the indwelling needle, which can compress the needle insertion point to stop bleeding; and the indwelling needle and the connecting piece 8 are integrated, and after the indwelling needle is inserted, the connecting piece 8 is immediately pasted on the skin surface, the steps are simple, and time and labor are saved. In addition, compared with the prior art that places dry cotton balls at the needle insertion point, when the indwelling needle is inserted, it is necessary to free up hands to take the cotton balls, and after the cotton balls are placed at the needle insertion point, one hand is required to press the cotton balls, and the other hand is used to fix the transparent patch, which is difficult to operate, and the dry cotton balls are usually sterilized, and hand contact will cause the cotton balls to be contaminated. When this embodiment is used, the release paper covers the bag body 9 to prevent it from being contaminated. After the indwelling needle is inserted, the release paper can be directly torn off to quickly bond the connecting piece 8 to the skin, and then the transparent patch can be fixed.

[0041] Example 2

[0042] like Fig.10 , Fig.11 As shown, the structure of this embodiment is basically the same as that of the embodiment 1, except that the connection sheet 8 is provided with an opening 13 near the fixing sleeve 12, and two openings 13 are provided, one on the left side and one on the right side of the bag body 9, and the directions of the two openings 13 are both provided along the radial direction of the fixing sleeve 12. This structure enables the connection sheet 8 to fully fit the skin when the adhesive member 11 is attached to the skin. The other structures are completely the same as those of the embodiment 1, and will not be described in detail in this embodiment.

[0043] The usage process of this embodiment refers to Embodiment 1.

[0044] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A venous indwelling needle for preventing bleeding at the puncture site, comprising an indwelling needle, characterized in that: A connecting piece for covering the needle insertion point and the surrounding skin is fixedly connected to the connecting tube of the indwelling needle, a bag body is arranged on the side of the connecting piece facing the skin and corresponding to the needle insertion point, a hemostatic piece is arranged in the bag body, and a bulge is formed on the bag body on the connecting piece; an adhesive piece for bonding the connecting piece to the skin is also arranged on the connecting piece, the adhesive piece is arranged on both sides of the indwelling catheter, and the size of the bulge of the bag body is greater than the thickness of the adhesive piece; a release paper which adheres to the adhesive piece and covers the bag body is arranged on the side of the connecting piece facing the skin.

2. A venous indwelling needle for preventing puncture site bleeding according to claim 1, characterized in that: A fixing sleeve is sleeved on the connecting tube of the indwelling needle, the inner diameter of the fixing sleeve is matched with the outer diameter of the connecting tube, a platform is arranged on the fixing sleeve, and the connecting piece is fixedly connected with the platform.

3. A venous indwelling needle for preventing puncture site bleeding according to claim 2, characterized in that: The adhesive piece is medical glue, and two groups of adhesive pieces are provided. The two groups of adhesive pieces are symmetrically arranged on both sides of the indwelling catheter.

4. A venous indwelling needle for preventing puncture site bleeding according to any one of claims 1 to 3, characterized in that: The hemostatic device is hemostatic cotton or sterile gauze.

5. A venous indwelling needle for preventing puncture site bleeding according to claim 4, characterized in that: The connecting piece is made of sterile gauze.

6. A venous indwelling needle for preventing puncture site bleeding according to any one of claims 1 to 3 and 5, characterized in that: The connecting piece is provided with an opening near the connecting tube for fully fitting the connecting piece to the skin. There are two openings, one on the left side and one on the right side of the bag body. Both openings are arranged along the radial direction of the connecting tube.

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