Remaining needle for elderly patients

Abstract

The utility model relates to the technical field of medical instruments, in particular to a remaining needle for elderly patients, which comprises a needle handle, a puncture needle and a soft needle tube, an extrusion plate is arranged at the bottom of the needle handle, a first sliding groove is arranged on one side of the extrusion plate contacted with the needle handle, and a raised line is arranged on one side of the extrusion plate contacted with human skin. The central axis of the protruding strip and the central axis of the first sliding groove coincide with the central axis of the soft needle tube, the needle handle is clamped in the first sliding groove and can slide along the first sliding groove, and the sliding distance of the needle handle in the first sliding groove is matched with the length of the soft needle tube. The length of the protruding strip is the same as that of the first sliding groove, and the protruding strip is used for squeezing the skin below the puncture point of the patient to make the skin concave. According to the utility model, the height of the lower vein of a puncture point can be lower than that of the upper vein through extrusion of the raised lines, so that the needle insertion path of the soft needle tube can be closer to the central axis of the upper vein of a human body, and the risk of friction between the head end of the soft needle tube and the wall of the vein is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an indwelling needle for elderly patients. Background Art

[0002] In clinical intravenous infusion therapy, the success rate of catheter puncture is closely related to vascular conditions. Elderly patients, due to physiological aging and chronic diseases, commonly experience pathological changes such as increased vascular wall fragility and decreased elasticity. These vascular characteristics can lead to friction between the catheter tip and the vessel wall during insertion, which can easily damage the patient's vessel wall and increase the risk of mechanical phlebitis during the indwelling period.

[0003] Therefore, for the puncture operation of the indwelling needle in elderly patients, how to prevent the friction between the hose head and the blood vessel wall, thereby reducing the risk of mechanical phlebitis in patients during the indwelling period, is a technical problem that needs to be solved urgently in the existing technology. Utility Model Content

[0004] The present invention aims to address the existing problem of increased vascular wall fragility and decreased elasticity in elderly patients due to physiological aging and chronic diseases. These vascular characteristics can lead to friction between the tip of an indwelling catheter tube and the vessel wall during insertion, which can easily damage the patient's vessel wall and lead to the risk of mechanical phlebitis during the indwelling period. The present invention provides an indwelling catheter for elderly patients.

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

[0006] An indwelling needle for elderly patients comprises a needle handle, a puncture needle and a soft needle tube. The needle handle is provided with an accommodating cavity inside, the soft needle tube is connected to the needle handle and communicates with the accommodating cavity inside the needle handle; a sealing rubber is provided in the accommodating cavity of the needle handle, the sealing rubber is used to seal the end opening of the needle handle accommodating cavity, the puncture needle penetrates into the accommodating cavity of the needle handle through the sealing rubber portion, and the end of the puncture needle extends beyond the end of the soft needle tube. The puncture needle and the needle handle are detachably connected.

[0007] An extrusion plate is also provided at the bottom of the needle handle, and a first slide groove is provided on the side of the extrusion plate in contact with the needle handle, and a convex strip is provided on the side of the extrusion plate in contact with human skin. The central axis of the convex strip and the first slide groove coincides with the central axis of the soft needle tube, and the needle handle is clamped in the first slide groove. The needle handle can slide along the first slide groove, and the sliding distance of the needle handle in the first slide groove matches the length of the soft needle tube; the length of the convex strip is the same as the length of the first slide groove, and the convex strip is used to squeeze the skin below the patient's puncture point to cause it to be concave.

[0008] Preferably, the cross-section of the convex strip is semicircular.

[0009] Preferably, one end of the first sliding groove passes through the extrusion plate, and when the soft needle tube is pushed into the human blood vessel, the needle handle can slide out from the end of the first sliding groove.

[0010] Preferably, wing plates are further provided on the left and right sides of the extrusion plate, and the wing plates are used to provide a pressing platform for the operator's hands.

[0011] Preferably, the wing plate is tilted upward to form an obtuse angle with the plane of the extrusion plate.

[0012] Preferably, the wing plate is arranged in the middle of the extruded plate.

[0013] Preferably, a plurality of limiting holes are further provided on the side of the first slide groove, and the limiting holes are arranged at intervals from the closed end to the open end of the first slide groove, and the connecting line of the limiting holes is parallel to the central axis of the first slide groove; the puncture needle is also connected to a limiting column, and the limiting column can slide in the vertical direction. After the limiting column is inserted into the limiting hole, the initial position of the needle handle in the first slide groove can be fixed.

[0014] Preferably, the side of the needle handle that contacts human skin is configured as a planar structure.

[0015] Preferably, the needle handle is further connected to an extension tube, and the extension tube is used to transport the drug solution into the needle handle accommodating cavity.

[0016] Preferably, a liquid-stopping clamp is connected to the extension tube, and the liquid-stopping clamp is used to clamp the flow channel of the extension tube.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The utility model describes an indwelling needle for elderly patients, in which the convex strip is provided on the side of the extrusion plate in contact with human skin. During the puncture operation, after the puncture needle penetrates the patient's vein, the convex strip is attached to the skin below the patient's puncture point, and pressure is applied to the extrusion plate, so that a longitudinal depression can be formed on the patient's skin surface by the extrusion of the convex strip; in this way, the patient's vein can be moderately stretched and become relatively straighter and smoother; on the other hand, the extrusion of the convex strip can make the height of the vein below the puncture point lower than the height of the vein above, so that the needle insertion path of the soft needle tube can be closer to the central axis of the upper vein of the human body, thereby effectively reducing the risk of friction between the head end of the soft needle tube and the blood vessel wall. At the same time, the needle handle is arranged to be clamped in the first slide groove and can slide along the first slide groove. Compared with the existing technology, this avoids friction between the needle handle and human skin, improves the smoothness of pushing the soft needle tube into the vein, and adopts this structural setting, improves the accuracy of pushing the soft needle tube into the vein, thereby further reducing the risk of friction between the soft needle tube head and the blood vessel wall;

[0019] 2. The indwelling needle for elderly patients described in the present invention can lock the puncture needle by using the limiting column and the limiting hole to prevent the puncture needle from moving together when the soft needle tube is pushed into the vein, thereby reducing the risk of the puncture needle penetrating the vein. At the same time, this structural setting prevents the puncture needle from retracting when the patient's skin is punctured, thereby further improving the practicality of the present invention in actual use.

[0020] On the other hand, by cooperating with the limiting column and the limiting hole, the initial position of the needle handle in the first slide groove can be adjusted. In this way, during the puncture operation, the length of the puncture needle tip extending out of the end of the extrusion plate can be adjusted according to the skin thickness and blood vessel depth of different patients, ensuring that the puncture needle can accurately penetrate the patient's veins, thereby further improving the applicability and practicality of the new model in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an indwelling needle for elderly patients;

[0022] Figure 2 Schematic diagram of the planar structure of the extruded plate;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the extruded plate.

[0024] Markings in the figure: 1-needle handle, 2-puncture needle, 3-soft needle tube, 4-extrusion plate, 5-first slide groove, 6-convex strip, 7-wing plate, 8-limiting hole, 9-limiting column, 10-extension tube, 11-stop liquid clamp. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0027] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0030] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0031] Example 1: Figures 1 to 3As shown, the utility model discloses an indwelling needle for elderly patients, comprising a needle handle 1, a puncture needle 2 and a soft needle tube 3. The needle handle 1 is provided with an accommodating cavity, the soft needle tube 3 is connected to the needle handle 1, and the soft needle tube 3 is communicated with the accommodating cavity inside the needle handle 1; a sealing rubber is provided in the accommodating cavity of the needle handle 1, and the sealing rubber is used to seal the end opening of the accommodating cavity of the needle handle 1; the puncture needle 2 penetrates into the accommodating cavity of the needle handle 1 from the sealing rubber portion, and the end of the puncture needle 2 exceeds the end of the soft needle tube 3, and the puncture needle 2 and the needle handle 1 are detachably connected.

[0032] The bottom of the needle handle 1 is also provided with an extrusion plate 4, and the side of the extrusion plate 4 in contact with the needle handle 1 is provided with a first slide groove 5, and the side of the extrusion plate 4 in contact with human skin is provided with a ridge 6, and the central axis of the ridge 6 and the first slide groove 5 coincides with the central axis of the soft needle tube 3. The needle handle 1 is clamped in the first slide groove 5, and the needle handle 1 can slide along the first slide groove 5, and the sliding distance of the needle handle 1 in the first slide groove 5 matches the length of the soft needle tube 3; the length of the ridge 6 is the same as the length of the first slide groove 5, and the ridge 6 is used to squeeze the skin below the patient's puncture point to cause it to be concave.

[0033] A new type of indwelling needle for elderly patients is used, and the convex strip 6 is provided on the side of the squeezing plate 4 that contacts the human skin. During the puncture operation, after the puncture needle 2 penetrates the patient's vein, the convex strip 6 is adhered to the skin below the patient's puncture point, and pressure is applied to the squeezing plate 4, so that a longitudinal depression can be formed on the patient's skin surface by squeezing the convex strip 6; in this way, the patient's vein can be moderately stretched and become relatively straighter and smoother; on the other hand, the squeezing of the convex strip 6 can make the height of the vein below the puncture point lower than the height of the vein above, so that the needle insertion path of the soft needle tube 3 can be closer to the central axis of the upper vein of the human body, thereby effectively reducing the risk of friction between the head end of the soft needle tube 3 and the blood vessel wall. At the same time, the needle handle 1 is arranged to be clamped in the first slide groove 5 and can slide along the first slide groove 5. Compared with the existing technology, this avoids friction between the needle handle 1 and the human skin, improves the smoothness of pushing the soft needle tube 3 into the vein, and adopts this structural setting to improve the accuracy of pushing the soft needle tube 3 into the vein path, thereby further reducing the risk of friction between the head end of the soft needle tube 3 and the blood vessel wall.

[0034] As a preferred embodiment, based on the above method, further, the cross-section of the ridge 6 is semicircular. With this structural setting, while ensuring the squeezing effect, it avoids crushing the patient's skin, thereby improving the practicality of the new model in actual use.

[0035] As a preferred embodiment, based on the above method, one end of the first chute 5 further penetrates the extrusion plate 4. When the soft needle tube 3 is pushed into the human blood vessel, the needle handle 1 can slide out from the end of the first chute 5. This structural arrangement prevents the indwelling needle from injuring the patient's skin during use, further improving the practicality of the new device in actual use.

[0036] Example 2: Figure 2 and Figure 3 As shown, the present invention, incorporating the above-described method, further comprises wing plates 7 on the left and right sides of the compression plate 4, which are used to provide a pressing platform for the operator's hands. This structural arrangement facilitates the operator's hand application when pressing the compression plate 4, further improving the practicality and convenience of the present invention in actual use.

[0037] As a preferred embodiment, based on the above-mentioned method, the wing plate 7 is further tilted upward to form an obtuse angle with the plane of the pressing plate 4. This structural arrangement can prevent the wing plate 7 from contacting the human skin, ensure the effective transmission of the pressing force, and thus enhance the effect of the convex strip 6 in squeezing the patient's skin surface to form a longitudinal depression.

[0038] As a preferred embodiment, based on the above method, the wing plate 7 is further arranged in the middle of the squeezing plate 4. With this structural arrangement, the force transmitted to the squeezing plate 4 can be made more uniform, so that the degree of depression formed by the ridges 6 squeezing the patient's skin is more consistent, so that the squeezing plate 4 fits more smoothly on the patient's skin, thereby further improving the accuracy of pushing the soft needle tube 3 into the venous blood vessel path and reducing the risk of friction between the tip of the soft needle tube 3 and the blood vessel wall.

[0039] Example 3: Figures 1 to 3 As shown, the utility model describes an indwelling needle for elderly patients. On the basis of the above method, further, a plurality of limiting holes 8 are provided on the side of the first slide groove 5. The limiting holes 8 are arranged at intervals from the closed end to the open end of the first slide groove 5, and the connecting line of the limiting holes 8 is parallel to the central axis of the first slide groove 5; the puncture needle 2 is also connected to a limiting column 9, and the limiting column 9 can slide in the vertical direction. After the limiting column 9 is inserted into the limiting hole 8, the initial position of the needle handle 1 in the first slide groove 5 can be fixed.

[0040] Specifically, in this embodiment, the limiting column 9 cooperates with the limiting hole 8 to lock the puncture needle 2, thereby preventing the puncture needle 2 from moving together when the soft needle tube 3 is pushed into the vein, thereby reducing the risk of the puncture needle 2 penetrating the vein; at the same time, adopting this structural setting, the puncture needle 2 is prevented from retracting when the patient's skin is punctured, thereby further improving the practicality of the new device in actual use;

[0041] On the other hand, by cooperating with the limiting column 9 and the limiting hole 8, the initial position of the needle handle 1 in the first slide groove 5 can be adjusted. In this way, during the puncture operation, the length of the tip of the puncture needle 2 extending out of the end of the extrusion plate 4 can be adjusted according to the skin thickness and blood vessel depth of different patients, ensuring that the puncture needle 2 can accurately penetrate the patient's veins, thereby further improving the applicability and practicality of the present invention in actual use.

[0042] Example 4: Figure 1 As shown, the present invention provides an indwelling needle for elderly patients. Based on the above method, the side of the needle handle 1 that contacts the human skin is configured as a flat structure. This structural configuration further reduces the risk of pressure injuries to the patient's skin during use.

[0043] As a preferred embodiment, on the basis of the above-mentioned manner, further, the needle handle 1 is connected to an extension tube 10 , and the extension tube 10 is used to transport the drug solution into the accommodating cavity of the needle handle 1 .

[0044] As a preferred embodiment, based on the above embodiment, further, a liquid-stopping clamp 11 is connected to the extension tube 10 , and the liquid-stopping clamp 11 is used to clamp the flow channel of the extension tube 10 .

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An indwelling needle for elderly patients, characterized in that: The needle handle comprises a needle, a puncture needle and a soft needle tube. The needle handle is provided with an accommodating cavity inside. The soft needle tube is connected to the needle handle and communicates with the accommodating cavity inside the needle handle. A sealing rubber is provided in the accommodating cavity of the needle handle. The sealing rubber is used to seal the end opening of the accommodating cavity of the needle handle. The puncture needle penetrates into the accommodating cavity of the needle handle from the sealing rubber portion, and the end of the puncture needle exceeds the end of the soft needle tube. The puncture needle and the needle handle are detachably connected. An extrusion plate is also provided at the bottom of the needle handle, and a first slide groove is provided on the side of the extrusion plate in contact with the needle handle, and a convex strip is provided on the side of the extrusion plate in contact with human skin. The central axis of the convex strip and the first slide groove coincides with the central axis of the soft needle tube, and the needle handle is clamped in the first slide groove. The needle handle can slide along the first slide groove, and the sliding distance of the needle handle in the first slide groove matches the length of the soft needle tube; the length of the convex strip is the same as the length of the first slide groove, and the convex strip is used to squeeze the skin below the patient's puncture point to cause it to be concave.

2. The indwelling needle for elderly patients according to claim 1, characterized in that: The cross-section of the convex strip is semicircular.

3. The indwelling needle for elderly patients according to claim 2, characterized in that: One end of the first sliding groove passes through the extrusion plate. When the soft needle tube is pushed into the human blood vessel, the needle handle can slide out from the end of the first sliding groove.

4. The indwelling needle for elderly patients according to claim 1, characterized in that: Wing plates are further provided on the left and right sides of the extrusion plate, and the wing plates are used to provide a pressing platform for the operator's hands.

5. The indwelling needle for elderly patients according to claim 4, characterized in that: The wing plate tilts upwards and forms an obtuse angle with the plane of the extrusion plate.

6. The indwelling needle for elderly patients according to claim 5, characterized in that: The wing plate is arranged in the middle of the extrusion plate.

7. The indwelling needle for elderly patients according to claim 1, characterized in that: A plurality of limiting holes are also provided on the side of the first slide groove, and the limiting holes are arranged at intervals from the closed end to the open end of the first slide groove, and the connecting line of the limiting holes is parallel to the central axis of the first slide groove; the puncture needle is also connected to a limiting column, and the limiting column can slide in the vertical direction. After the limiting column is inserted into the limiting hole, the initial position of the needle handle in the first slide groove can be fixed.

8. The indwelling needle for elderly patients according to any one of claims 1 to 7, characterized in that: The side of the needle handle that contacts human skin is configured as a planar structure.

9. The indwelling needle for elderly patients according to claim 8, characterized in that: The needle handle is also connected to an extension tube, and the extension tube is used to transport liquid medicine into the needle handle accommodating cavity.

10. The indwelling needle for elderly patients according to claim 9, characterized in that: The extension tube is connected with a liquid-stopping clamp, and the liquid-stopping clamp is used to clamp the flow channel of the extension tube.

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