A port needle positioning aid

Abstract

This invention provides an infusion port needle positioning aid, belonging to the field of medical devices. It includes a support frame, with vertical rods fixedly connected to both sides of the top of the support frame. A sliding sleeve is slidably connected to the outer surface of each vertical rod, and a first spring is fitted onto the outer surface of the vertical rod. An adhesive strip is fixedly connected to the bottom of the support frame. A positioning component for quickly fixing a butterfly needle is provided on one side of the sliding sleeve. The positioning component includes a disc fixed to one side of the sliding sleeve, with a slot inside the disc. Two clamping plates can firmly hold the butterfly needle, ensuring that the first needle is in the center of the slot, preventing the butterfly needle from shifting to one side of the slot and causing it to deviate from the puncture position of the infusion rod. This also avoids the decrease in elasticity and deformation capacity caused by long-term spring clamping, which could lead to permanent deformation and loss of initial clamping force or pre-tightening, resulting in loosening of the fixed object.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an infusion port needle positioning aid. Background Technology

[0002] An infusion port is an implanted device that works with a butterfly needle to facilitate blood collection or medication administration by medical personnel. However, during use, it has been found that the butterfly needle is small, making it inconvenient for medical personnel to apply force and to accurately insert it into the infusion port. Furthermore, the difficulty in adjusting the insertion position of the butterfly needle further limits its practicality.

[0003] To address the aforementioned issues, existing technologies have provided some solutions. For example, Chinese utility model patent CN221713127U discloses an infusion port butterfly needle positioning device. This device involves placing a fixing mechanism over the patient's skin onto the infusion port and clamping the butterfly needle within it. Then, by applying a downward force to the fixing mechanism and guiding it through a guiding mechanism, the device inserts the butterfly needle into the infusion port. Finally, the fixing mechanism is released, separating the butterfly needle from the fixing mechanism. The fixing mechanism can then be removed from the infusion port, thereby improving the device's practicality.

[0004] However, the device's fixing mechanism mainly uses the elasticity of two sets of springs to clamp the butterfly needles with two sets of compression plates. After the springs are subjected to force for a long time or repeated expansion and contraction, the elastic coefficient will decrease and the deformation capacity will weaken due to the fatigue effect of the metal material. In some cases, permanent deformation may occur, making it impossible to maintain the initial clamping force or preload, causing the fixed object to loosen. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide an infusion port needle positioning aid.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] An infusion port needle positioning aid includes a support frame, with vertical rods fixedly connected to both sides of the top of the support frame, a sliding sleeve slidably connected to the outer surface of the vertical rods, a first spring sleeved on the outer surface of the vertical rods, an adhesive strip fixedly connected to the bottom of the support frame, and a positioning component for quickly fixing the butterfly needle on one side of the sliding sleeve.

[0008] The positioning component includes a disc fixed to one side of the sliding sleeve. The disc has a slot and a second groove inside, with the slot communicating with the second groove. A telescopic rod is axially slidably connected inside the disc. A fourth spring is sleeved on the outer surface of the telescopic rod. A clamping plate is fixedly connected to one side of the telescopic rod. A sliding groove is axially slidably opened on the upper surface of the disc. A hinge rod is hinged to the outer surface of the telescopic rod. A U-shaped plate is slidably connected to the upper surface of the disc. Triggering components are provided on both sides inside the disc, and fixing components are provided on the triggering components.

[0009] Optionally, a connecting groove is provided at the edge of the top of the disc, and a connecting slider is provided inside the connecting groove. The C-shaped plate is fixed to the connecting slider, and the other end of the hinge rod is hinged to one side of the C-shaped plate. The hinge rod is connected to the outer surface of the telescopic rod through a hinge shaft, and the hinge shaft slides inside the groove.

[0010] Optionally, one side of the telescopic rod extends into the interior of the disc, the clamping plate is located inside the slot, the fourth spring is located inside the second groove, the two sides of the fourth spring are fixedly connected to the clamping plate and the inner surface of the second groove, respectively, and an anti-slip pad is provided on one side of the clamping plate.

[0011] Optionally, the fixing component includes a first groove formed on both sides of the lower surface of the disc, a mounting plate disposed on the triggering component, and a first rack fixed to the outer surface of the telescopic rod. The mounting plate is slidably connected to a slide rod, the top of the slide rod is fixedly connected to a second rack, and the outer surface of the slide rod is fitted with a second spring.

[0012] Optionally, the second rack and the first rack are located inside the first groove, the second rack and the first rack mesh with each other, and the teeth of the second rack and the first rack are right-angled triangles.

[0013] Optionally, a limiting plate is fixedly connected to the bottom of the slide rod, the top of the second spring is fixedly connected to the bottom of the mounting plate, and the bottom of the second spring is fixedly connected to the limiting plate.

[0014] Optionally, the triggering component includes two circular grooves on both sides inside the disc, a T-shaped slide groove at the front and rear of the first groove, and two connecting plates fixed to the inner surface of the support frame. A triangular block is fixedly connected to the top of the connecting plate axially symmetrically. A third spring is fixedly connected to the top of the circular groove. A retaining plate is fixedly connected to the bottom of the third spring. A slot is opened inside the retaining plate. An L-shaped rod is movably connected inside the T-shaped slide groove.

[0015] Optionally, one side of the L-shaped rod extends into the interior of the slot, the bottom of the card plate extends into the interior of the circular groove, the bottom of the card plate is fixedly connected to the top of the mounting plate, and the third spring is in a compressed state.

[0016] Optionally, the support frame is provided with three wiping components evenly arranged inside. Each wiping component includes a storage groove inside. A pressure spring is fixedly connected to the top of the storage groove, and a sponge sleeve is fixedly connected to the bottom of the pressure spring. A sponge wipe is placed inside the sponge sleeve.

[0017] Optionally, the sponge slides inside the storage slot, with the bottom of the sponge extending into the storage slot and the bottom of the sponge being lower than the bottom of the adhesive strip.

[0018] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0019] In the above solution, by setting a positioning component, the butterfly needle can be firmly clamped by two clamping plates. At the same time, it can ensure that the first needle is in the middle of the slot, preventing the butterfly needle from shifting to one side of the slot and causing the butterfly needle to deviate from the position of the infusion rod puncture. It also avoids the problem of long-term clamping with springs, which can lead to a decrease in elasticity, weakening of deformation capacity, or even permanent deformation, making it impossible to maintain the initial clamping force or pre-tightening force and causing the fixed object to loosen.

[0020] By setting up a fixing component, once the clamping plate clamps and fixes the butterfly needle, the telescopic rod cannot move away from the slot under the action of the second and first racks, thus firmly fixing the telescopic rod. At this time, the continuous pressure on the shaped plate can be released, thereby freeing up one hand and avoiding instability during needle insertion.

[0021] By setting a trigger component, when the butterfly needle is fully inserted into the infusion port, the L-shaped rod simultaneously moves away from the slot. At this time, the third spring quickly opens and pushes the retaining plate downward. The second rack moves downward and separates from the first rack. Through transmission, the clamping of the butterfly needle is released, thus automatically releasing the butterfly needle from its clamping state. This avoids manually releasing the butterfly needle from its fixed state, prevents the butterfly needle from shaking inside the infusion port, reduces patient pain, and improves the convenience of the device. Attached Figure Description

[0022] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the positioning component structure of the present invention. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the positioning component structure of the present invention. Figure 2 ;

[0027] Figure 5 This is a schematic cross-sectional view of the disk structure of the present invention. Figure 1 ;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of point A;

[0029] Figure 7 This is a schematic cross-sectional view of the disk structure of the present invention. Figure 2 ;

[0030] Figure 8 For the present invention Figure 7 Enlarged view of point B;

[0031] Figure 9 This is a schematic diagram of the trigger component structure of the present invention.

[0032] Figure 10 This is a schematic diagram of the wiping assembly structure of the present invention.

[0033] Figure 11 This is a schematic diagram of the sponge sleeve structure of the present invention.

[0034] [Figure Labels]

[0035] 1. Support frame; 2. Vertical rod; 3. First spring; 4. Sliding sleeve;

[0036] 5. Positioning component; 51. Disc; 5101. Connecting groove; 52. Slot; 53. Telescopic rod; 54. Clamping plate; 55. C-shaped plate; 56. Hinge rod; 57. Slide groove;

[0037] 58. Fixing component; 581. First groove; 582. First rack; 583. Second rack; 584. Slide rod; 5841. Limiting plate; 585. Second spring; 586. Mounting plate;

[0038] 59. Trigger assembly; 591. Circular groove; 592. Third spring; 593. T-shaped slide; 594. L-shaped rod; 595. Card plate; 596. Triangular block; 597. Connecting plate; 598. Slot;

[0039] 510. Second groove; 511. Fourth spring; 512. Mounting groove; 513. Hinge shaft;

[0040] 6. Wiping assembly; 61. Storage slot; 62. Pressure spring; 63. Sponge wipe; 64. Sponge sleeve; 7. Adhesive strip.

[0041] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0042] The following is a detailed description of an expandable cancellous bone hollow screw with a pressure structure provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0043] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0044] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0045] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0046] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0047] like Figures 1 to 11 As shown, this embodiment of the invention provides an infusion port needle positioning aid, including a support frame 1, vertical rods 2 fixedly connected to both sides of the top of the support frame 1, a sliding sleeve 4 slidably connected to the outer surface of the vertical rods 2, a first spring 3 sleeved on the outer surface of the vertical rods 2, the first spring 3 being located between the sliding sleeve 4 and the support frame 1, an adhesive strip 7 fixedly connected to the bottom of the support frame 1, and a positioning component 5 for quickly fixing the butterfly needle is provided on one side of the sliding sleeve 4.

[0048] like Figure 3-5 As shown, the positioning component 5 includes a disc 51 fixed to one side of the sliding sleeve 4. The disc 51 has a slot 52 and a second groove 510 inside, and the slot 52 and the second groove 510 are connected. The disc 51 also has an axially symmetrical mounting groove 512 inside, and the mounting groove 512 is connected to the second groove 510. A telescopic rod 53 is slidably installed in the mounting groove. A fourth spring 511 is sleeved on the outer surface of the telescopic rod 53. The upper surface of the disc 51 has an axially symmetrical sliding groove 57. One end of a hinge rod 56 is hinged to the outer surface of the telescopic rod 53. A U-shaped plate 55 is slidably connected to the upper surface of the disc 51. Triggering components 59 are provided on both sides inside the disc 51. A fixing component 58 is provided on the triggering component 59.

[0049] like Figure 5As shown, a connecting groove 5101 is provided at the top edge of the disc 51. A connecting slider is slidably installed inside the connecting groove 5101. The C-shaped plate 55 is connected to the connecting slider. The other end of the hinge rod 56 is hinged to one side of the C-shaped plate 55. The hinge rod 56 is connected to the outer surface of the telescopic rod 53 through a hinge shaft 513, and the hinge shaft 513 slides inside the slide groove 57. Specifically, a hinge shaft 513 is connected to the telescopic rod 53, and the hinge shaft 513 is rotatably connected to the hinge rod 56.

[0050] For example Figure 5 As shown, one side of the telescopic rod 53 extends out of the interior of the disc 51, the clamping plate 54 is located inside the slot 52, the fourth spring 511 is located inside the second groove 510, and the two sides of the fourth spring 511 are fixedly connected to the clamping plate 54 and the inner surface of the second groove 510 respectively. An anti-slip pad is provided on one side of the clamping plate 54.

[0051] When inserting a metal needle into a patient, first remove the protective film from the adhesive strip 7. Place the support frame 1 over the infusion port through the patient's skin, and then adhere the adhesive strip 7 to the skin, thus fixing the support frame 1 to the patient's skin. Place the butterfly needle between the two clamping plates 54, and push the inverted plate 55 to one side. The inverted plate 55 moves one end of each of the two hinge rods 56, which in turn pushes the telescopic rod 53 closer together, causing the two clamping plates 54 to move closer to and clamp the butterfly needle. The fourth spring 511 is stretched, and the finger continues to push the inverted plate 55. Without releasing, push the disc 51 downwards again, moving the butterfly needle towards the infusion port and inserting it into the port. The two clamping plates 54 can firmly hold the butterfly needle, ensuring that the first needle is in the middle of the slot 52. This prevents the butterfly needle from shifting to one side of the slot 52, thus avoiding displacement of the infusion rod puncture position. It also prevents the elastic coefficient from decreasing and the deformation capacity from weakening due to long-term spring clamping, which could lead to permanent deformation and loss of initial clamping force or pre-tightening force, causing the fixed butterfly needle to loosen.

[0052] like Figure 6As shown, the fixing assembly 58 includes a first groove 581 formed on both sides of the lower surface of the disc 51, a first rack 582 fixed to the outer surface of the telescopic rod 53, a slide rod 584 slidably connected inside the mounting plate 586, a second rack 583 fixedly connected to the top of the slide rod 584, the top of the slide rod 584 and the second rack 583 located within the first groove 581, the top of the second rack 583 having a second spring 585 sleeved on the outer surface of the first slide rod 584. Specifically, the second rack 583 and the first rack 582 are located inside the first groove 581, the second rack 583 and the first rack 582 mesh with each other, and the teeth of the second rack 583 and the first rack 582 are right-angled triangles. A limiting plate 5841 is fixedly connected to the bottom of the slide rod 584, the top of the second spring 585 is fixedly connected to the bottom of the mounting plate 586, and the bottom of the second spring 585 is fixedly connected to the limiting plate 5841.

[0053] By simultaneously pushing the two hinge rods 56 to move one end of the telescopic rod 53, and clamping the butterfly needle with the clamping plate 54, it can be ensured that the butterfly needle does not deviate. However, when pushing the disc 51 downward, if the hand squeezing the shaped plate 55 shakes, the clamping plate 54 will move, causing the two clamping plates 54 to loosen their grip on the butterfly needle, causing the butterfly needle to fall off.

[0054] When the convex plate 55 is pushed to move the telescopic rod 53 via the hinge rod 56, the telescopic rod 53 drives the first rack 582 to move synchronously. The inclined edge of the tooth on the first rack 582 slides against the inclined edge of the tooth on the second rack 583, so that the second rack 583 will not obstruct the movement of the telescopic rod 53 toward the slot 52. After the clamping plate 54 clamps and fixes the butterfly needle, under the action of the second rack 583 and the first rack 582, the telescopic rod 53 cannot move away from the slot 52, so that the telescopic rod 53 is firmly fixed. At this time, the continuous pressure on the convex plate 55 can be released, thereby freeing one hand and avoiding instability during the needle insertion process.

[0055] like Figure 7-9As shown, the trigger assembly 59 includes two circular grooves 591 formed on both sides inside the disc 51, a T-shaped groove 593 formed before and after the first groove 581, and two connecting plates 597 fixed to the inner surface of the support frame 1. A triangular block 596 is fixedly connected to the top of the connecting plate 597 axially symmetrically. A third spring 592 is fixedly connected to the top of the circular groove 591. The top of the third spring 592 is connected to the inner wall of the circular groove 591. A retaining plate 595 is fixedly connected to the bottom of the third spring 592. A slot 598 is formed inside the retaining plate 595. An L-shaped rod 594 is slidably connected inside the T-shaped groove 593. One side of the L-shaped rod 594 extends into the interior of the slot 598. The bottom of the retaining plate 595 extends out of the interior of the circular groove 591. The bottom of the retaining plate 595 is fixedly connected to the top of the mounting plate 586. The third spring 592 is in a compressed state.

[0056] After the disc 51 drives the butterfly needle into the infusion port, the device needs to be removed from the body in time. However, due to the fixing effect of the telescopic rod 53, the second rack 583 needs to be manually pulled to separate it from the first rack 582. During the operation, the device will shake, causing the device to drive the butterfly needle to shake inside the infusion port, which may cause the needle to slip and increase the patient's discomfort.

[0057] As the disc 51 moves downward, causing the butterfly needle to move synchronously, the disc 51 also drives the L-shaped rod 594 downward. The L-shaped rod 594 will contact the hypotenuse of the triangular block 596. Under the action of the triangular block 596, the L-shaped rod 594 will move into the T-shaped groove 593. One side of the L-shaped rod 594 will slide inside the slot 598. When the butterfly needle is fully inserted into the infusion port, the L-shaped rod 594 will simultaneously move away from the slot 598. At this time, the third spring 592 will quickly open and push the locking plate 595 downward. The two locking plates 595... The mounting plate 586 moves downward, and the mounting plate 586 drives the second rack 583 downward through the slide rod 584 to separate from the first rack 582, thereby releasing the fixing effect on the telescopic rod 53. At this time, the stretched fourth spring 511 quickly returns to its original state, pulling the clamping plate 54 to move towards the second groove 510, releasing the clamping of the butterfly needle. This allows the butterfly needle to be automatically released from its clamping state, avoiding manual unfixation of the butterfly needle, preventing the butterfly needle from shaking inside the infusion port, reducing patient pain, and improving the convenience of the device.

[0058] like Figure 10-11As shown, three wiping components 6 are evenly arranged inside the support frame 1. Each wiping component 6 includes a storage groove 61 inside the support frame 1. The top of a pressure spring 62 is fixedly connected to the top of the storage groove 61, and a sponge sleeve 64 is fixedly connected to the bottom of the pressure spring 62. A sponge 63 is fitted inside the sponge sleeve 64. The sponge 63 slides inside the storage groove 61, and the bottom of the sponge 63 extends out of the storage groove 61, with the bottom of the sponge 63 being lower than the bottom of the adhesive strip 7.

[0059] When the device is fixed to the patient's skin with the adhesive strip 7, if there is sweat on the skin, the adhesion of the adhesive strip 7 will be greatly reduced, which may cause the device to fall off unexpectedly during subsequent work. Therefore, before attaching the adhesive strip 7 to the skin, the sponge 63 is brought into contact with the skin, and the support frame 1 is rotated to make the sponge 63 wipe the patient's skin in a circular motion. This cleans the areas where the adhesive strip 7 is sticky, absorbs the sweat, improves the dryness of the skin, improves the adhesion between the adhesive strip 7 and the skin, and prevents the device from falling off or shifting unexpectedly.

[0060] The workflow of the technical solution provided by this invention is as follows:

[0061] Before inserting the needle, the sponge 63 is brought into contact with the skin, and the support frame 1 is rotated to make the sponge 63 wipe the patient's skin in a circular motion. This cleans the areas where the adhesive strip 7 is sticky, absorbs sweat, improves skin dryness, and enhances the adhesion between the adhesive strip 7 and the skin. The used sponge 63 is then removed from the inside of the sponge sleeve 64 to facilitate the subsequent installation of a new sponge 63. This reduces the contact between the sponge 63 and the skin, avoids the storage groove 61 exerting pressure on the skin, and reduces the adhesion strength of the adhesive strip 7. The protective film on the adhesive strip 7 is then removed, and the support frame 1 is placed over the infusion port through the patient's skin. The adhesive strip 7 adheres to the skin, thus fixing the support frame 1 in place. Place the butterfly needle between two clamping plates 54 on the patient's skin, push the incline plate 55 to one side, the incline plate 55 drives one end of the two hinge rods 56 to move, the hinge rods 56 push the telescopic rod 53 to move closer to each other, drive the two clamping plates 54 to move closer to the butterfly needle and clamp it, and stretch the fourth spring 511. Keep pushing the incline plate 55 with your finger without letting go, then push the disc 51 downward to move the butterfly needle towards the infusion port, insert the butterfly needle into the infusion port. The two clamping plates 54 can firmly clamp the butterfly needle, and at the same time ensure that the first needle is in the middle of the slot 52, and prevent the butterfly needle from shifting to one side of the slot 52.

[0062] During the process of pushing the C-shaped plate 55 to move the telescopic rod 53 through the hinge rod 56, the telescopic rod 53 drives the first rack 582 to move synchronously. The inclined edge of the upper tooth of the first rack 582 slides against the inclined edge of the tooth of the second rack 583, so that the second rack 583 will not obstruct the movement of the telescopic rod 53 towards the slot 52. After the clamping plate 54 clamps and fixes the butterfly needle, under the action of the second rack 583 and the first rack 582, the telescopic rod 53 cannot move away from the slot 52, so that the telescopic rod 53 is firmly fixed and the stability of the butterfly needle is improved.

[0063] As the disc 51 moves downward, causing the butterfly needle to move synchronously, the disc 51 also causes the L-shaped rod 594 to move downward. The L-shaped rod 594 will contact the hypotenuse of the triangular block 596. Under the action of the triangular block 596, the L-shaped rod 594 will move into the T-shaped groove 593. One side of the L-shaped rod 594 will slide inside the slot 598. When the butterfly needle is fully inserted into the port, the L-shaped rod 594 will move away from the slot 598. At this time, the third spring 592 will quickly open and push the clamping plate 595 to move downward. The two clamping plates 595 will cause the mounting plate 586 to move downward. The mounting plate 586 will drive the second rack 583 to move downward through the slide rod 584 and separate from the first rack 582, thereby releasing the fixing effect on the telescopic rod 53. At this time, the stretched fourth spring 511 will quickly return to its original state and pull the clamping plate 54 to move towards the second groove 510, releasing the clamping of the butterfly needle. At this time, the support frame 1 can be removed from the port.

[0064] Push the mounting plate 586 upward until the first rack 582 and the second rack 583 are engaged. Push the L-shaped rod 594 towards the slide rod 584. The top of the L-shaped rod 594 is inserted into the slot 598, completing the reset of the trigger assembly 59.

[0065] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0066] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A infusion port needle positioning aid, comprising a support frame, both sides of the top of the support frame are fixedly connected with vertical rods, the outer surface of the vertical rod is slidably connected with a sliding sleeve, the outer surface of the vertical rod is sleeved with a first spring, and the bottom of the support frame is fixedly connected with a sticky strip; characterized in that One side of the sliding sleeve is provided with a positioning assembly for quickly fixing the butterfly wing needle; The positioning assembly comprises a disc fixed on one side of the sliding sleeve, a slotted groove and a second groove are formed in the disc, the slotted groove is in communication with the second groove, the inside of the disc is slidably connected with a telescopic rod in an axisymmetric manner, the outer surface of the telescopic rod is sleeved with a fourth spring, one side of the telescopic rod is fixedly connected with a clamping plate, the upper surface of the disc is axially symmetrically provided with a sliding groove, the outer surface of the telescopic rod is hingedly connected with a hinge rod, the upper surface of the disc is slidably connected with a H-shaped plate, the other end of the hinge rod is hingedly connected with one side of the H-shaped plate, both sides of the inside of the disc are provided with a trigger assembly, and the trigger assembly is provided with a fixing assembly; The fixing assembly comprises a first groove formed on both sides of the lower surface of the disc, a mounting plate provided on the trigger assembly, and a first rack fixed on the outer surface of the telescopic rod, the inside of the mounting plate is slidably connected with a sliding rod, the top of the sliding rod is fixedly connected with a second rack, and the outer surface of the sliding rod is sleeved with a second spring; The bottom of the sliding rod is fixedly connected with a limiting plate, the top of the second spring and the bottom of the mounting plate are fixedly connected, and the bottom of the second spring is fixedly connected with the limiting plate; The second rack and the first rack are located in the first groove, and the second rack and the first rack are in meshing engagement; The trigger assembly comprises two circular grooves formed in both sides of the inside of the disc, a T-shaped sliding groove formed at the front and rear of the first groove, and two connecting plates fixed on the inner surface of the support frame, the top of the connecting plate is axially symmetrically fixedly connected with a triangular block, the inner top of the circular groove is fixedly connected with a third spring, the bottom of the third spring is fixedly connected with a clamping plate, the inside of the clamping plate is provided with a slot, and the inside of the T-shaped sliding groove is movably connected with an L-shaped rod; One side of the L-shaped rod extends into the inside of the slot, the bottom of the clamping plate extends out of the inside of the circular groove, the bottom of the clamping plate is fixedly connected with the top of the mounting plate, and the third spring is in a compressed state; Push the H-shaped plate to move to one side, the H-shaped plate drives one end of the two hinge rods to move, the hinge rods push the telescopic rods to move close to each other, drive the two clamping plates to move close to the butterfly wing needle, and clamp the butterfly wing needle; When the telescopic rods are driven to move by the H-shaped plate through the hinge rods, the telescopic rods drive the first rack to move synchronously, the inclined edges of the teeth on the first rack slide with the inclined edges of the teeth of the second rack, when the clamping plates clamp and fix the butterfly wing needle, under the action of the second rack and the first rack, the telescopic rods cannot move away from the groove. When the disc moves down to drive the butterfly needle to move synchronously, the disc drives the L-shaped rod to move down synchronously, the L-shaped rod will be in contact with the hypotenuse of the triangular block, under the action of the triangular block, the L-shaped rod will move to the inside of the T-shaped sliding groove, one side of the L-shaped rod will slide in the slot, when the butterfly needle is completely inserted into the inside of the infusion port, the L-shaped rod is simultaneously removed from the inside of the slot, at this time the third spring quickly opens to push the clamping plate to move down, the two clamping plates drive the mounting plate to move down, the mounting plate drives the second rack to move down through the sliding rod and separates from the first rack, so as to release the fixing effect on the telescopic rod, at this time the fourth spring stretched quickly restores, pulls the clamping plate to move to the second groove, and releases the clamping of the butterfly needle.

2. The port needle positioner of claim 1, wherein, The edge of the top of the disc is provided with a connecting groove, a connecting sliding block is arranged in the connecting groove, the U-shaped plate is fixed with the connecting sliding block, the hinge rod is connected with the outer surface of the telescopic rod through a hinge shaft, and the hinge shaft slides in the sliding groove.

3. The port needle positioner of claim 2, wherein, One side of the telescopic rod extends into the inside of the disc, the clamping plate is located in the slot, the fourth spring is located in the second groove, the two sides of the fourth spring are fixedly connected with the clamping plate and the inner surface of the second groove respectively, and one side of the clamping plate is provided with a non-slip pad.

4. The infusion port hub needle positioner of claim 1, wherein, The teeth of the second rack and the first rack are right-angled triangles.

5. The infusion port hub needle positioner of claim 1, wherein, Three wiping assemblies are evenly arranged in the support frame, the wiping assembly comprises a receiving groove arranged in the inside, a pressure spring is fixedly connected to the inner top of the receiving groove, a sponge sleeve is fixedly connected to the bottom of the pressure spring, and a sponge wipe is sleeved in the sponge sleeve.

6. The port needle positioner of claim 5, wherein, The sponge wipe slides in the receiving groove, the bottom of the sponge wipe extends out of the inside of the receiving groove, and the bottom of the sponge wipe is lower than the bottom of the adhesive strip.

Images