Remaining needle puncture positioning assembly

Abstract

The utility model relates to the technical field of indwelling needle puncture, in particular to an indwelling needle puncture positioning assembly which comprises two sets of positioning patches, one-way ratchet rods are connected to the top faces of the positioning patches, the one-way ratchet rods are assembly parts, the number of the one-way ratchet rods is two, and the two sets of one-way ratchet rods are connected to the top faces of the positioning patches. The ends of the two parts of the one-way ratchet rod are connected to the two sides of the top faces of the two sets of positioning patches, a needle point positioning belt adheres to the top face of the one-way ratchet rod, the two ends of the needle point positioning belt are attached to the top face of the one-way ratchet rod in the using state, an indwelling needle penetrates through the middle of the needle point positioning belt in a sliding mode, and a thin film is attached to the middle of the top face of each positioning patch. The mode that the skin is tensioned between the two positioning patches is adopted, the problem that the skin is loose in the indwelling needle puncture process is solved, veins are exposed on the surface of the skin more obviously, the indwelling needle puncture success rate is increased, meanwhile, the detachable needle point positioning belt is arranged, and the angle of the indwelling needle puncture needle point can be freely adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of indwelling needle puncture, in particular to an indwelling needle puncture positioning assembly. Background Technique

[0002] An indwelling needle, also known as a venous cannula, is a medical infusion tool mainly composed of a soft catheter and a stainless steel puncture guiding stylet. When in use, the catheter and the stylet are punctured into the blood vessel together. After the catheter completely enters the blood vessel, the stylet is withdrawn, and only the catheter is left in the blood vessel for infusion treatment. According to whether it is equipped with an extension tube and a closed infusion connector, indwelling needles are divided into two categories: open type and closed type. Among them, the closed indwelling needle also includes a common type and a safety type.

[0003] The puncture and use of indwelling needles require extremely high proficiency. During the puncture process, skin folds occur. For novice doctors or doctors with insufficient proficiency, the puncture of indwelling needles is prone to errors, and the soft tube of the indwelling needle is difficult to penetrate into the vein.

[0004] Therefore, it is necessary to provide an indwelling needle puncture positioning assembly to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an indwelling needle puncture positioning assembly, which can tension and fix the skin at the puncture position of the patient, and freely adjust and control the puncture angle of the indwelling needle to ensure that the indwelling needle can be stably punctured and hit.

[0006] An indwelling needle puncture positioning assembly provided by the utility model includes:

[0007] A positioning patch. There are two groups of the positioning patches. A one-way ratchet rod is connected to the top surface of the positioning patch. The one-way ratchet rod is an assembled part and there are two groups. Two ends of two parts of the one-way ratchet rod are connected to both sides of the top surface of the two groups of the positioning patches. A needle tip positioning band is pasted on the top surface of the one-way ratchet rod. In the use state, both ends of the needle tip positioning band are attached to the top surface of the one-way ratchet rod. An indwelling needle is slidably penetrated through the middle of the needle tip positioning band. A thin film adhesive is attached to the middle of the top surface of the positioning patch.

[0008] Preferably, the two groups of the positioning patches are respectively a fixing patch and a tensioning patch. Release paper is attached to the bottom surfaces of the fixing patch and the tensioning patch. The fixing patch can fix one side of the skin, while the tensioning patch can fix the other side of the skin. The fixing patch and the tensioning patch are respectively connected to both sides of the indwelling needle puncture position, and the skin to be tensioned can be bonded and fixed by tearing off the release paper.

[0009] Preferably, the one-way ratchet rod comprises a barrel rod and a ratchet rod. The ends of the barrel rod are fixed on both sides of the top surface of the fixed piece, and the ends of the ratchet rod are fixed on both sides of the top surface of the tensioning piece. A ratchet barrel is arranged inside the barrel rod. At the deep part inside the ratchet barrel, equidistantly arranged ratchet teeth are fixed. One end of the ratchet rod slides through the inside of the ratchet barrel. On the surface of the end of the ratchet rod located inside the ratchet barrel, reversely arranged soft rubber teeth are fixedly arranged at equal intervals. The reversely arranged soft rubber teeth are elastically clamped in engagement with the ratchet teeth.

[0010] After the positioning patch is attached to the skin, pulling the tensioning piece can drive the skin to slide, and at the same time, make the ratchet rod inside the barrel rod slide outwards. Through the separation of the ratchet rod from the ratchet teeth inside the barrel rod, the skin between the fixed piece and the tensioning piece can be pulled to both sides, realizing the tensioning of the skin, facilitating the puncture of the indwelling needle for veins, and improving the puncture success rate.

[0011] Preferably, on both sides of the bottom surface of the needle tip positioning band, needle fixing pieces are pasted. In the middle of the bottom surface of the needle tip positioning band, a needle-passing hole is arranged. The end of the indwelling needle slides through the inside of the needle-passing hole. The needle fixing piece is release paper. At the position where the bottom surface of the needle tip fixing band is connected to the needle fixing piece, glue is provided. Tearing off the needle fixing piece can bond both ends of the needle tip fixing band to any position on the top surface of the one-way ratchet rod. After the indwelling needle puncture is completed, separating both ends of the needle tip fixing band from the one-way ratchet rod and completely tearing off the position of the needle fixing piece can paste the needle tip fixing band at the indwelling needle puncture position to fix the indwelling needle tip. Or the needle fixing piece can also be directly and completely torn off when it is connected to the one-way ratchet rod.

[0012] Preferably, the indwelling needle comprises an indwelling tube and a puncture needle. The end of the puncture needle slides through the inside of the indwelling tube. The outer surface of the indwelling tube slides through the inside of the needle-passing hole. The puncture needle of the indwelling needle has sufficient sharpness to drive the indwelling tube to pierce into the vein in the skin, and after piercing, the puncture needle can be taken out.

[0013] Preferably, tear tabs are provided at the ends of the thin film film, the release paper, and the needle fixing piece. The tear tabs can facilitate the quick detachment of the thin film film, the release paper, and the needle fixing piece from their pasted positions, facilitating operation and use.

[0014] Compared with the related art, a kind of indwelling needle puncture positioning assembly provided by the present utility model has the following

[0015] Beneficial effects:

[0016] 1. The utility model can fix the skin by using double positioning patches and tension the skin between the double positioning patches in the way of pulling by a one-way ratchet rod to prevent the problem of skin relaxation during the puncture of the indwelling needle, making the vein blood vessels more obviously exposed on the skin surface, improving the success rate of indwelling needle puncture. At the same time, a detachable needle tip positioning band is provided, which can freely adjust the angle of the indwelling needle puncture tip, further improving the hit rate of the indwelling needle piercing into the vein, and tensioning the skin can avoid the plastic hose of the indwelling needle being blocked by the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of an indwelling needle puncture positioning assembly provided by the utility model;

[0018] Figure 2 is Figure 1 a schematic exploded enlarged view of the structure of the position of the indwelling needle shown;

[0019] Figure 3 is Figure 1 a schematic sectional view of the structure of the one-way ratchet rod shown;

[0020] Figure 4 is Figure 3 a schematic enlarged view of the structure of the position of the ratchet teeth shown.

[0021] Reference numerals in the figure: 1, positioning patch; 2, one-way ratchet rod; 3, needle tip positioning band; 4, indwelling needle; 5, thin film; 6, easy tear piece; 11, fixing piece; 12, tensioning piece; 13, release paper; 21, barrel rod; 22, ratchet rod; 23, ratchet barrel; 24, ratchet teeth; 25, reverse soft rubber teeth; 31, needle fixing piece; 32, needle piercing hole; 41, indwelling tube; 42, puncture needle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] The following describes the specific implementation of the utility model in detail with reference to specific embodiments.

[0024] In the utility model, the positioning patch and the needle tip positioning band are made of soft rubber material and can fit with the shape of the skin surface.

[0025] Please refer to the attached Figures 1-4 , an indwelling needle puncture positioning assembly provided by an embodiment of the utility model, the indwelling needle puncture positioning assembly includes:

[0026] Positioning patch 1, there are two groups of positioning patches 1. The two groups of positioning patches 1 are respectively fixed pieces 11 for fixing the skin position, and tensioning pieces 12 for moving the skin at the puncture position, so that the skin can maintain tension and avoid relaxation.

[0027] On both sides of the top surface of the positioning patch 1, there are one-way ratchet rods 2. The one-way ratchet rods 2 are divided into barrel rods 21 and ratchet rods 22. The barrel rods 21 are fixed on both sides of the top surface of the fixed piece 11 for connecting with the fixed piece 11 to keep itself fixed. The ratchet rods 22 are fixed on both sides of the top surface of the tensioning piece 12. Inside the barrel rod 21, there is a ratchet barrel 23. On the upper and lower surfaces at the deep part of the inner side of the ratchet barrel 23, there are equidistantly arranged ratchet teeth 24. The ratchet rod 22 slides through the inner side of the ratchet barrel 23. On the upper and lower surfaces of the ratchet rod 22, there are equidistantly arranged reverse soft rulers. The reverse soft rulers are meshed and clamped with the ratchet teeth 24. Through the movement of the tensioning piece 12, the ratchet rod 22 can be driven to slide inside the ratchet barrel 23, so that the reverse soft rubber teeth 25 elastically slide with the ratchet teeth 24, and using the supporting force of the meshing, it can ensure that the skin between the tensioning piece 12 and the fixed piece 11 can be supported after sliding, so that the skin no longer relaxes and maintains tension, and the puncture success rate of the indwelling needle 4 is higher.

[0028] On the top surface of the one-way ratchet rod 2, there is a needle tip positioning belt 3. The needle tip positioning belt 3 can bond both ends to any position on the outer surface of the barrel rod 21 by tearing off the needle head fixing piece 31. Then, after the needle of the indwelling needle 4 penetrates into the inner side of the needle-piercing hole 32, the puncture position of the needle of the indwelling needle 4 can be freely adjusted, which is convenient for doctors to operate. Even when the proficiency is insufficient, the indwelling needle 4 can be accurately inserted into the patient's vein. After the indwelling needle 4 is punctured, separate both ends of the needle tip fixing belt from the barrel rod 21, and paste the needle tip positioning belt 3 on the patient's skin surface to initially fix the needle of the indwelling needle 4.

[0029] It should be noted that: the needle tip positioning belt 3 can be used when the doctor's proficiency in puncturing the indwelling needle 4 is not high. When the doctor is proficient, after directly tightening the patient's skin on the positioning patch 1, the indwelling needle 4 can be directly used to puncture the patient's vein to complete the puncture and infusion of the indwelling needle 4. Then, after tearing off the needle head fixing piece 31 of the needle tip positioning belt 3, it can be attached to the upper part of the indwelling needle 4 to fix the indwelling needle 4. It can also insert the needle of the indwelling needle 4 into the inner side of the needle-piercing hole 32 before puncture, and directly use the needle tip positioning belt 3 to fix the needle of the indwelling needle 4 after the indwelling needle 4 is punctured.

[0030] After the indwelling needle 4 punctures the patient's vein, the puncture needle 42 can be removed to complete the indwelling of the indwelling tube 41 in the patient's vein, realizing multiple infusions.

[0031] The top surface of the positioning patch 1 is provided with a thin film 5. After the indwelling needle 4 is punctured, the positioning patch 1 can be torn off from the patient's skin, and the thin film 5 can be removed from the surface of the positioning patch 1 and pasted on the outside of the indwelling needle 4 after puncture to completely fix the indwelling needle 4 to the patient's skin.

[0032] Easy-to-tear tabs 6 are provided at the ends of the thin film 5, the release paper 13, and the needle fixing piece 31. The easy-to-tear tabs 6 can facilitate their tearing off from the pasting position for easy operation.

[0033] Usage process:

[0034] The positioning patch 1 is attached to both sides of the position on the patient where the indwelling needle 4 needs to be punctured. Then, the tensioning piece 12 is pulled or the fixing piece 11 and the tensioning piece 12 are pulled simultaneously to separate the one-way ratchet lever 2, forming a support for the fixing piece 11 and the tensioning piece 12 to keep the skin in a tensioned state. At this time, the needle fixing piece 31 at the bottom of the needle tip positioning band 3 is torn off, the indwelling needle 4 is inserted into the inner side of the needle insertion hole 32, the angle of the needle tip of the indwelling needle 4 is adjusted, the indwelling needle 4 is accurately inserted into the patient's vein, the puncture needle 42 is removed, the needle tip positioning band 3 is attached to the patient's skin surface, the positioning patch 1 is removed, the thin film 5 is attached to the outside of the indwelling needle 4, and the indwelling needle 4 is fixed.

[0035] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here.

[0036] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A puncture positioning assembly for an indwelling needle, characterized in that, It includes positioning patches (1), with two sets of the positioning patches (1). A one-way ratchet rod (2) is connected to the top surface of the positioning patch (1). The one-way ratchet rod (2) is an assembled part and there are two sets. Two ends of the one-way ratchet rod (2) are connected to both sides of the top surface of the two sets of the positioning patches (1). A needle tip positioning belt (3) is pasted on the top surface of the one-way ratchet rod (2). In the use state, both ends of the needle tip positioning belt (3) are attached to the top surface of the one-way ratchet rod (2). A indwelling needle (4) is slidably penetrated through the middle of the needle tip positioning belt (3). A thin film film (5) is attached to the middle of the top surface of the positioning patch (1).

2. The indwelling needle puncture positioning assembly according to claim 1, characterized in that, The two sets of the positioning patches (1) are respectively a fixed patch (11) and a tensioning patch (12). A release paper (13) is attached to the bottom surfaces of the fixed patch (11) and the tensioning patch (12).

3. The indwelling needle puncture positioning assembly according to claim 1, characterized in that, The one-way ratchet rod (2) includes a barrel rod (21) and a ratchet rod (22). The end of the barrel rod (21) is fixed to both sides of the top surface of the fixed patch (11). The end of the ratchet rod (22) is fixed to both sides of the top surface of the tensioning patch (12). An internal ratchet barrel (23) is formed inside the barrel rod (21). Equally spaced ratchet teeth (24) are fixed at the deep part inside the internal ratchet barrel (23). One end of the ratchet rod (22) is slidably penetrated through the inside of the internal ratchet barrel (23). Equally spaced reverse soft rubber teeth (25) are fixed on the surface of the end of the ratchet rod (22) located inside the internal ratchet barrel (23). The reverse soft rubber teeth (25) are elastically clamped in engagement with the ratchet teeth (24).

4. The indwelling needle puncture positioning assembly according to claim 2, wherein Needle head fixing pieces (31) are pasted on both sides of the bottom surface of the needle tip positioning belt (3). A needle-piercing hole (32) is formed in the middle of the bottom surface of the needle tip positioning belt (3). The end of the indwelling needle (4) is slidably penetrated through the inside of the needle-piercing hole (32).

5. The indwelling needle puncture positioning assembly according to claim 4, wherein, The indwelling needle (4) includes an indwelling tube (41) and a puncture needle head (42). The end of the puncture needle head (42) is slidably penetrated through the inside of the indwelling tube (41). The outer surface of the indwelling tube (41) is slidably penetrated through the inside of the needle-piercing hole (32).

6. The indwelling needle puncture positioning assembly according to claim 4, wherein, Easy-to-tear pieces (6) are provided at the ends of the thin film film (5), the release paper (13), and the needle head fixing pieces (31).

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