Arm fixing device for venipuncture

Abstract

The utility model relates to the technical field of medical instruments, in particular to an arm fixing device for venipuncture, which comprises a fixing base, a traction application and a traction rope, the fixing base is bound on an arm of a human body, the traction application is used for being attached to the skin of the lower portion of an arm puncture point of a patient, a take-up device is arranged on the fixing base, and the traction rope is arranged on the traction application. One end of the traction rope is connected to the traction application, the other end of the traction rope is connected to the take-up device, the take-up device is used for tightening the traction rope, and then the traction rope can apply pulling force towards the palm direction of the human body to the traction application. Compared with the prior art, the pressure injury of the arm skin of a patient is effectively avoided, and the comfort level of the patient in the treatment process is improved. And on the other hand, in the embodiment, the tightening degree of the traction rope can be changed through the take-up device, then the pulling force applied to the arm skin of the patient by the traction application patch can be adjusted, and the convenience and practicability of the traction application patch in actual use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an arm fixing device for venipuncture. Background Art

[0002] In clinical practice, for venipuncture treatment of elderly patients, medical staff need to tighten the skin at the puncture site of the patient to limit the sliding of the veins under the skin, so as to ensure the success rate of the puncture.

[0003] To improve the convenience of skin-banding operations, a Chinese utility model patent application numbered CN201720680841.0 discloses a skin tensioner comprising a clamp with a pair of clamping portions opening upward, a support base, a pillar mounted on the support base, the clamp being connected to the top of the pillar and used to clamp the skin, and an angle adjustment mechanism connected to the clamp and the pillar, respectively, for adjusting the angle between the clamp and the pillar. This utility model skin tensioner has a simple structure and is easy to use. It allows a single nurse to independently perform venipuncture on the elderly, saving manpower, time, efficiency, and the success rate of punctures, alleviating the patient's pain, and saving the patient's expenses. However, there are still some shortcomings, as described below.

[0004] In actual use, the aforementioned skin tightener clamps a certain amount of loose skin on the patient to tighten the skin at the puncture site. This method is less likely to cause pressure injuries on the patient's skin and affect the patient's treatment comfort.

[0005] Therefore, how to avoid causing pressure damage to the patient's skin when tightening the patient's skin and improve the patient's treatment comfort is a technical problem that needs to be urgently solved in the existing technology. Utility Model Content

[0006] The present invention aims to address the problem of existing skin tightening devices, which, in practice, clamp a certain amount of loose skin to tighten the skin at the puncture site. This approach avoids the risk of pressure injuries to the patient's skin and affects the patient's treatment comfort. The present invention provides an arm fixation device for venipuncture.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An arm fixation device for intravenous puncture includes a fixed base, a traction dressing and a traction rope. The fixed base is tied to the human arm, the traction dressing is used to fit on the skin below the puncture point on the patient's arm, and a take-up device is provided on the fixed base. One end of the traction rope is connected to the traction dressing, and the other end is connected to the take-up device. The take-up device is used to tighten the traction rope, so that the traction rope can apply a pulling force to the traction dressing toward the palm of the human body.

[0009] Preferably, the traction patch and the traction rope are detachably connected.

[0010] Preferably, a pulling block is provided on the traction dressing, the width of the pulling block matches the width of the traction dressing, the pulling block is made of hard plastic material, and the traction rope is connected to the pulling block.

[0011] Preferably, an indicator bar is provided on the pull block, and the indicator bar extends toward the puncture point on the patient's arm, and the indicator bar is used to indicate the direction of the blood vessels in the patient's arm.

[0012] Preferably, the length of the indicator bar is adjustable.

[0013] Preferably, a notch is provided at the end of the indicator strip, and the notch is provided along the central axis of the indicator strip, and the notch is used to expose the skin at the puncture point of the patient's arm.

[0014] Preferably, the indicator strip includes a telescopic section, an indicator section and a receiving section. The telescopic section is connected to the pull block. A gap is provided between the telescopic section and the traction patch. The length of the telescopic section is adjustable. The indicator section is used to fit the skin of the patient's arm to be punctured. The receiving section is provided between the telescopic section and the indicator section. The notch is provided on the indicator section and the receiving section.

[0015] Preferably, the cross section of the receiving section is configured as an arc structure matching the handle of the puncture needle.

[0016] Preferably, a sliding groove is vertically provided on the pulling block, and the telescopic section is clamped in the sliding groove. The telescopic section can slide along the sliding groove in the direction of the pulling application.

[0017] Preferably, a wing plate is provided on the telescopic section, and the wing plate is used to increase the contact area between the operator's hand and the telescopic section.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. The arm fixation device for intravenous puncture described in the present invention, after tightening the traction rope using the take-up device provided on the fixed base, the traction rope can apply a pulling force to the traction patch in the direction of the human palm. The loose skin of the patient's arm adhered by the traction patch is gathered toward one side of the palm under the action of the pulling force. In this way, the skin of the patient's puncture site can be tightened, thereby effectively suppressing the slippage of the patient's blood vessels during the puncture operation and improving the success rate of the puncture operation. Moreover, compared with the existing technology, the present invention effectively avoids causing pressure damage to the patient's arm skin and improves the patient's comfort during treatment. On the other hand, in this embodiment, the take-up device can be used to change the tension of the traction rope, and thus the magnitude of the pulling force applied by the traction patch on the patient's arm skin can be adjusted, thereby improving the convenience and practicality of the present invention in actual use;

[0020] 2. The present invention describes an arm fixing device for intravenous puncture, wherein the indicator strip includes a telescopic section, an indicator section, and a receiving section. The telescopic section is connected to the pull block, and a gap is provided between the telescopic section and the pulling patch. The length of the telescopic section is adjustable, and the indicator section is used to fit the skin of the patient's arm to be punctured. The receiving section is provided between the telescopic section and the indicator section. The fitting angle formed between the receiving section and the indicator section is consistent with the angle at which the puncture needle penetrates the patient's skin, and the notch is provided on the indicator section and the receiving section. With this structural arrangement, during the puncture operation, medical staff can lean the puncture needle against the receiving section, and use the receiving section to guide the angle at which the puncture needle penetrates the patient's skin. This can make the puncture operation more standardized and ensure the success rate of the puncture.

[0021] 3. In the arm fixation device for venous puncture described in the present invention, a vertical slot is provided on the pull block, and the telescopic section is engaged in the slot. The telescopic section can slide along the slot toward the pull-applying device. With this structural arrangement, after the indicator bar is used to mark the skin at the patient's arm to be punctured, the operator can press the telescopic section to cause it to slide along the slot toward the pull-applying device. This allows the indicator section to more closely adhere to the patient's skin at the area to be punctured, achieving a better positioning effect on the patient's veins. Furthermore, under the action of pressure, the indicator section can squeeze the skin on both sides of the vein, causing it to dent, while the skin corresponding to the vein at the notch can be slightly raised. This creates an arc-shaped cross-section of the skin on the patient's arm to be punctured. This reduces the surface area of ​​the skin puncture surface within the notch corresponding to the puncture needle, allowing the puncture needle to more closely locate the vein during the puncture operation, thereby further improving the success rate of the puncture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an arm fixation device for venipuncture;

[0023] Figure 2 yes Figure 1 Schematic diagram of the structure of A;

[0024] Figure 3 2 is a schematic diagram of the side structure of the indicator bar.

[0025] Markings in the figure: 1-fixed base, 2-traction patch, 3-traction rope, 4-take-up device, 5-pull block, 6-indicator bar, 7-notch, 8-telescopic section, 9-indicator section, 10-receiving section, 11-chute, 12-wing plate. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings.

[0027] 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.

[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] 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.

[0030] 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.

[0031] 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 inventive 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 element 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.

[0032] Example 1: Figure 1 and Figure 2 As shown, the arm fixing device for intravenous puncture described in the utility model includes a fixed base 1, a traction dressing 2 and a traction rope 3. The fixed base 1 is tied to the human arm, and the traction dressing 2 is used to fit on the skin below the puncture point on the patient's arm. A take-up device 4 is provided on the fixed base 1, and one end of the traction rope 3 is connected to the traction dressing 2, and the other end is connected to the take-up device 4. The take-up device 4 is used to tighten the traction rope 3, so that the traction rope 3 can apply a pulling force to the traction dressing 2 toward the palm of the human body.

[0033] Using the arm fixation device for intravenous puncture described in this invention, after tightening the traction cord 3 using the take-up device 4 provided on the fixed base 1, the traction cord 3 can apply a pulling force to the traction patch 2 toward the palm of the human body. The loose skin on the patient's arm, which is adhered by the traction patch 2, is gathered toward one side of the palm under the action of the pulling force. In this way, the skin at the patient's puncture site can be tightened, thereby effectively suppressing the slippage of the patient's blood vessels during the puncture operation and improving the success rate of the puncture operation. In addition, compared with the existing technology, this new device effectively avoids causing pressure damage to the patient's arm skin and improves the patient's comfort during treatment. On the other hand, in this embodiment, the take-up device 4 can be used to change the tension of the traction cord 3, and the magnitude of the pulling force applied by the traction patch 2 on the patient's arm skin can be adjusted, thereby improving the convenience and practicality of this new device in actual use.

[0034] Specifically, in this embodiment, the fixed base 1 includes a seat body and a strap portion, the take-up device 4 is arranged on the seat body, the strap portion is arranged on the left and right sides of the seat body, and the strap portion is arranged as a Velcro structure, and in actual use, the strap is wrapped around the human arm to achieve fixation; the take-up device 4 in this embodiment is existing technology, such as a BOA strap reel.

[0035] As a preferred embodiment, based on the above method, further, the traction patch 2 and the traction rope 3 are detachably connected.

[0036] Specifically, in this embodiment, a hook is provided on the traction patch 2, and the end of the traction cord 3 is provided with a loop structure. During use, the loop structure of the traction cord 3 is hung on the hook to connect the two. This structural arrangement can improve the convenience of applying the traction patch 2.

[0037] As a preferred embodiment, based on the above method, further, a pull block 5 is provided on the traction patch 2, the width of the pull block 5 matches the width of the traction patch 2, the pull block 5 is made of hard plastic material, and the traction rope 3 is connected to the pull block 5.

[0038] Specifically, the pull block 5 is integrally formed with the traction patch 2. In this embodiment, the pull block 5 disperses the pulling force exerted by the traction cord 3 on the traction patch 2, effectively reducing the risk of the traction patch 2 becoming detached from the patient's skin at the connection point between the traction cord 3 and the traction patch 2, thereby improving the reliability of the present invention in actual use.

[0039] Example 2: Figure 2 and Figure 3 As shown, the arm fixing device for intravenous puncture described in the present invention is based on the above method. Further, an indicator bar 6 is provided on the pull block 5, and the indicator bar 6 extends toward the puncture point of the patient's arm. The indicator bar 6 is used to indicate the direction of the blood vessels in the patient's arm.

[0040] In this embodiment, the indicator strip 6 is provided to account for the fact that, during an actual puncture procedure, after the skin at the patient's arm is stretched tight, the pressure may prevent blood from flowing into the veins in the stretched area, blurring the visualization of the veins on the patient's skin surface and affecting the accuracy of the puncture procedure performed by the medical staff. In actual use, after the skin at the patient's arm is stretched tight, the medical staff can use the indicator strip 6 to determine the direction of the veins, ensuring puncture accuracy and improving the practicality of the present invention.

[0041] As a preferred embodiment, based on the above method, further, the length of the indicator bar 6 is adjustable.

[0042] Specifically, the indicator strip 6 in this embodiment is configured as a sheet-like structure. The structure of the indicator strip 6 is the same as that of the telescopic rod in the prior art, and its specific structure is not repeated here. With this structural arrangement, the indicator strip 6 can adjust its length according to different puncture points, which further improves the practicality of the present invention in actual use.

[0043] As a preferred embodiment, based on the above method, further, a notch 7 is provided at the end of the indicator strip 6, and the notch 7 is provided along the central axis of the indicator strip 6, and the notch 7 is used to expose the skin at the puncture point of the patient's arm.

[0044] Specifically, in this embodiment, when the indicator strip 6 is in use, the range of the notch 7 needs to correspond to the skin part where the veins of the patient's arm are located. With this structural setting, the accuracy of the indicator strip 6 in indicating the puncture point can be improved.

[0045] Example 3: Figure 2 and Figure 3 As shown, the arm fixing device for intravenous puncture described in the present invention is based on the above method. Further, the indicator strip 6 includes a telescopic section 8, an indicator section 9 and a receiving section 10. The telescopic section 8 is connected to the pull block 5. A gap is provided between the telescopic section 8 and the traction patch 2. The length of the telescopic section 8 is adjustable. The indicator section 9 is used to fit the skin of the patient's arm to be punctured. The receiving section 10 is provided between the telescopic section 8 and the indicator section 9. The matching angle formed between the receiving section 10 and the indicator section 9 is consistent with the needle insertion angle of the puncture needle into the patient's skin. The notch 7 is provided on the indicator section 9 and the receiving section 10.

[0046] With this structural setting, during the puncture operation, medical staff can lean the puncture needle on the receiving section 10, and use the receiving section 10 to guide the insertion angle of the puncture needle into the patient's skin, which can make the puncture operation more standardized and ensure the success rate of the puncture.

[0047] Specifically, in this embodiment, after using the indicator bar 6 to mark the skin of the patient's arm to be punctured, the puncture needle is leaned against the receiving section 10 for the puncture operation. When the puncture needle penetrates the patient's vein and "blood backflow" occurs, the length of the indicator bar 6 is shortened, and then the angle of the puncture needle is adjusted to reduce the angle between it and the patient's skin, and the needle tube part of the puncture needle is continued to be inserted into the patient's vein.

[0048] As a preferred embodiment, based on the above method, further, the cross section of the receiving section 10 is configured as an arc structure matching the handle of the puncture needle. With this structural configuration, the stability of the puncture needle leaning against the receiving section 10 can be improved.

[0049] As a preferred embodiment, based on the above method, further, a slide groove 11 is vertically provided on the pulling block 5, and the telescopic section 8 is clamped in the slide groove 11, and the telescopic section 8 can slide along the slide groove 11 toward the direction of the traction dressing 2.

[0050] Specifically, in this embodiment, after using the indicator bar 6 to mark the skin of the patient's arm to be punctured, the operator can press the telescopic section 8 to make the telescopic section 8 slide along the slide groove 11 in the direction of the traction dressing 2, so that the indicator section 9 can be more closely attached to the skin of the patient's arm to be punctured, resulting in a better limiting effect on the patient's veins; and, under the action of pressure, the indicator section 9 can squeeze the skin on both sides of the vein to cause it to be concave, and the skin corresponding to the vein located at the notch 7 can produce a certain bulge, so that the cross-sectional shape of the skin to be punctured on the patient's arm forms an arc shape, which to a certain extent reduces the surface area of ​​the skin puncture surface corresponding to the puncture needle in the notch 7, and the puncture point of the puncture needle during the puncture operation can be more concentrated at the vein site, thereby further improving the success rate of the puncture.

[0051] As a preferred embodiment, based on the above-mentioned manner, further, a wing plate 12 is provided on the telescopic section 8 , and the wing plate 12 is used to increase the contact area between the operator's hand and the telescopic section 8 .

[0052] 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 arm fixing device for venipuncture, characterized in that: It includes a fixed base, a traction patch and a traction rope. The fixed base is tied to the human arm. The traction patch is used to fit on the skin below the puncture point on the patient's arm. A take-up device is provided on the fixed base. One end of the traction rope is connected to the traction patch, and the other end is connected to the take-up device. The take-up device is used to tighten the traction rope, so that the traction rope can apply a pulling force to the traction patch toward the palm of the human body.

2. The arm fixing device for venipuncture according to claim 1, characterized in that: The traction patch and the traction rope are detachably connected.

3. The arm fixing device for venipuncture according to claim 2, characterized in that: The traction patch is provided with a pulling block, the width of the pulling block matches the width of the traction patch, the pulling block is made of hard plastic material, and the pulling rope is connected to the pulling block.

4. The arm fixing device for venipuncture according to claim 3, characterized in that: The pull block is provided with an indicator bar, which extends toward the puncture point on the patient's arm and is used to indicate the direction of the blood vessels in the patient's arm.

5. The arm fixing device for venipuncture according to claim 4, characterized in that: The length of the indicator bar is adjustable.

6. The arm fixing device for venipuncture according to any one of claims 4-5, characterized in that: A notch is provided at the end of the indicator strip, and the notch is provided along the central axis of the indicator strip. The notch is used to expose the skin at the puncture point of the patient's arm.

7. The arm fixing device for venipuncture according to claim 6, characterized in that: The indicator strip includes a telescopic section, an indicator section and a receiving section. The telescopic section is connected to the pull block. A gap is provided between the telescopic section and the traction patch. The length of the telescopic section is adjustable. The indicator section is used to fit the skin of the patient's arm to be punctured. The receiving section is provided between the telescopic section and the indicator section. The notch is provided on the indicator section and the receiving section.

8. The arm fixing device for venipuncture according to claim 7, characterized in that: The cross section of the receiving section is configured as an arc structure that matches the handle of the puncture needle.

9. The arm fixing device for venipuncture according to claim 8, characterized in that: A sliding groove is vertically provided on the pulling block, and the telescopic section is clamped in the sliding groove. The telescopic section can slide along the sliding groove in the direction of the pulling and applying.

10. The arm fixing device for venipuncture according to claim 9, characterized in that: The telescopic section is provided with a wing plate, and the wing plate is used to increase the contact area between the operator's hand and the telescopic section.

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