Intravenous therapy catheter positioning device with adjusting function

Abstract

The utility model relates to an intravenous therapy catheter positioning device with an adjusting function, which comprises a mounting plate, the top surface of the mounting plate is used for mounting a catheter, two clamping arms are symmetrically arranged on the bottom surface of the mounting plate, the top ends of the two clamping arms are in sliding connection with the bottom surface of the mounting plate, and the planes of the sliding tracks of the two clamping arms are coplanar; a linkage assembly for enabling the two clamping arms to synchronously and reversely slide on the mounting plate is arranged between the two clamping arms; the mounting plate is provided with a one-way locking part used for limiting the two clamping arms to slide on the mounting plate in a back-to-back mode. The problems that in the prior art, in the normal physiological activity process of a patient, the skin can secrete sweat, sebum and the like, the skin surface of an arm is in a wet or humid state, the viscosity of a medical adhesive tape is reduced, and the catheter fixing effect becomes poor are solved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a positioning device for intravenous treatment catheters with adjustable function. Background Technology

[0002] Intravenous catheters, also known as venous catheters, are commonly used medical tools to deliver medications, blood, or nutrients directly into a patient's blood vessels. This treatment method plays a vital role in various clinical procedures such as surgical infusions and blood transfusions. Intravenous catheters are mainly classified into the following categories: peripherally inserted venous catheters (PVCs), central venous catheters (CVCs), and peripherally inserted central venous catheters (PICCs). Among these, the superficial veins of the arm are one of the most common insertion sites for PVCs due to their relatively large size and ease of puncture.

[0003] In existing technologies, when performing treatment on the arm vein, one end of a catheter needs to be inserted into a superficial vein in the arm, while the other end of the catheter is placed externally, so that drugs, blood, or nutrients can be directly delivered into the patient's vein through the catheter. After the catheter puncture is completed, medical tape is usually used to attach and fix the external end of the catheter to the corresponding position on the arm to reduce the probability of secondary damage to the puncture wound caused by catheter movement.

[0004] However, during normal physiological activities, the skin secretes sweat, sebum, etc., keeping the skin surface of the arm moist or damp, which reduces the adhesiveness of the medical tape and makes the catheter fixation effect worse. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an intravenous treatment catheter positioning device with adjustable function, so as to solve the problem in the prior art that when patients are in normal physiological activities, their skin secretes sweat, sebum and other substances, making the skin surface of the arm wet or damp, which reduces the adhesiveness of medical tape and makes the catheter fixation effect worse.

[0006] The utility model is achieved through the following technical solutions:

[0007] A positioning device for an intravenous treatment catheter with adjustable function includes a mounting plate with a top surface for mounting the catheter, and two clamping arms symmetrically arranged on the bottom surface of the mounting plate. The top ends of the two clamping arms are slidably connected to the bottom surface of the mounting plate, and the planes of the sliding trajectories of the two clamping arms are coplanar.

[0008] A linkage component is provided between the two clamping arms to enable the two clamping arms to slide synchronously in opposite directions on the mounting plate;

[0009] The mounting plate is provided with a one-way locking part to restrict the two clamping arms from sliding back and forth on the mounting plate.

[0010] Furthermore, two parallel sliding grooves are provided on the bottom surface of the mounting plate, and a sliding strip is slidably engaged in both sliding grooves;

[0011] The two opposite ends of the slide bars are respectively connected to the top ends of the two clamping arms.

[0012] Furthermore, each of the two opposite ends of the slide bar is fixedly connected to a rotating shaft, and each of the two clamping arms is fixedly connected to a rotating sleeve at the top center. The two rotating sleeves are respectively fitted around the two rotating shafts and rotate in cooperation, and the plane of their rotation trajectory is parallel to the mounting plate.

[0013] Furthermore, the linkage component includes a gear embedded in the mounting plate and rotatably engaged with it, and two racks respectively meshing with the gear, wherein the plane of the gear's rotation trajectory is parallel to the mounting plate;

[0014] The two racks are respectively fixedly connected to the two slide bars.

[0015] Furthermore, the top surface of the mounting plate is provided with a groove, and a cover plate is detachably connected to the opening end of the groove;

[0016] One end of the gear is inserted into the bottom wall of the groove and rotates to engage with it, while the other end is inserted into the cover plate and rotates to engage with it.

[0017] Furthermore, the one-way locking part includes a ratchet sleeved on the outer side of the gear facing the cover plate and fixedly connected, and a pawl meshing with the ratchet. The pawl is provided with a rotating rod at the end facing away from the ratchet.

[0018] One end of the rotating rod is fixedly connected to the pawl, and the other end extends through the cover plate out of the groove and is rotatably engaged.

[0019] Furthermore, the end of the rotating rod facing away from the cover plate is inserted into the bottom wall of the groove and rotates in cooperation with it, and a torsion spring is sleeved on the end of the rotating rod facing away from the cover plate.

[0020] One end of the torsion spring is fixedly connected to the rotating rod, and the other end is fixedly connected to the bottom wall of the groove. When the torsion spring is in its naturally extended state, the rotating rod pushes the pawl to insert into the tooth groove of the ratchet.

[0021] Furthermore, a lever is provided at one end of the rotating rod outside the groove. One end of the lever is fixedly connected to the rotating rod, and the other end extends radially away from the rotating rod.

[0022] Furthermore, each of the two clamping arms has several ventilation holes on its opposite sides.

[0023] Furthermore, a U-shaped pipe clamp is fixedly connected to the top surface of the mounting plate, and the open end of the U-shaped pipe clamp is located on the side opposite to the mounting plate.

[0024] The beneficial effects of this utility model are as follows:

[0025] This adjustable intravenous catheter positioning device consists of a mounting plate and two clamping arms. The two clamping arms hold the patient's arm to fix the mounting plate to the patient's arm, and the top surface of the mounting plate is connected to the catheter to position the catheter. By using the top surface of the mounting plate to replace the patient's skin in contact with the catheter, the influence of sweat and other substances on the skin on the catheter positioning and fixation is eliminated.

[0026] By sliding the two clamping arms to the mounting plate, it is possible to clamp and position different parts of the arm; by setting a linkage component, the two clamping arms slide synchronously towards each other on the mounting plate, so as to quickly adjust the opening size between the two clamping arms and improve work efficiency; by setting a one-way locking part, it is possible to prevent the two clamping arms from sliding back and forth on the mounting plate, so that the two clamping arms can stably clamp the arm.

[0027] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0029] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0030] Figure 3 This is a three-dimensional structural diagram of the embodiment of the present invention with the mounting plate removed;

[0031] Figure 4 This is a three-dimensional structural diagram of the slider and rack in an embodiment of the present utility model;

[0032] Figure 5 This is a three-dimensional structural diagram of the clamping arm in an embodiment of the present utility model;

[0033] Figure 6 This is a three-dimensional structural diagram of the mounting plate in an embodiment of the present utility model;

[0034] Figure 7 for Figure 3 Enlarged view of point A in the middle.

[0035] In the figure: mounting plate 11, slide groove 111, slide bar 112, rotating shaft 1121, groove 113, notch 1131, cover plate 114, U-shaped pipe clamp 115, clamping arm 12, rotating sleeve 121, vent hole 122;

[0036] Gear 21, rack 22, ratchet 23, pawl 24, rotating rod 25, torsion spring 26, paddle 27. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] 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.

[0040] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0042] Please see Figure 1-7This utility model provides a technical solution: a positioning device for intravenous treatment catheter with adjustable function, including a mounting plate 11 with a top surface for mounting the catheter, and two clamping arms 12 symmetrically arranged on the bottom surface of the mounting plate 11. The top ends of the two clamping arms 12 are slidably connected to the bottom surface of the mounting plate 11, and the planes of the sliding trajectories of the two clamping arms 12 are coplanar.

[0043] A linkage component is provided between the two clamping arms 12 to enable the two clamping arms 12 to slide synchronously in opposite directions on the mounting plate 11;

[0044] The mounting plate 11 is provided with a one-way locking part for restricting the two clamping arms 12 from sliding back and forth on the mounting plate 11.

[0045] The positioning device consists of a mounting plate 11 and two clamping arms 12. The two clamping arms 12 clamp the patient's arm to fix the mounting plate 11 to the patient's arm. The top surface of the mounting plate 11 is connected to the catheter to position the catheter. By using the top surface of the mounting plate 11 to replace the patient's arm skin in contact with the catheter, the influence of sweat and other substances on the skin on the catheter positioning and fixing work is eliminated.

[0046] By sliding the two clamping arms 12 to the mounting plate 11, it is possible to clamp and position different parts of the arm; by setting a linkage component, the two clamping arms 12 slide synchronously towards each other on the mounting plate 11, so as to quickly adjust the opening size between the two clamping arms 12 and improve work efficiency; by setting a one-way locking part, it is possible to prevent the two clamping arms 12 from sliding back to back on the mounting plate 11, so that the two clamping arms 12 can stably clamp the arm.

[0047] During use, the patient's arm is inserted through the openings of the two clamping arms 12, and the two clamping arms 12 are moved to the puncture site on the arm. Then, the two clamping arms 12 are pressed inward, and under the action of the linkage component, the two clamping arms 12 slide synchronously towards each other on the mounting plate 11 until both clamping arms 12 are in contact with the patient's arm skin to clamp the patient's arm. Because the one-way locking part prevents the two clamping arms 12 from sliding backward on the mounting plate 11, the two clamping arms 12 stably clamp the arm. The catheter is then attached to the top surface of the mounting plate 11 with medical tape to complete the positioning and fixation of the catheter.

[0048] In this embodiment: two parallel sliding grooves 111 are provided on the bottom surface of the mounting plate 11, and a sliding strip 112 is slidably engaged in both sliding grooves 111;

[0049] The two opposite ends of the two slide bars 112 are respectively connected to the top ends of the two clamping arms 12.

[0050] The slide groove 111 has a T-shaped cross section, and the top of the slide bar 112 is a T-shaped strip that matches the slide groove 111. The two clamping arms 12 are hooked onto the two slide grooves 111 by the two slide bars 112 to restrict the clamping arms 12 from rotating around the extension direction of the corresponding slide groove 111, thereby stably performing clamping work.

[0051] In this embodiment: the bottom surfaces of the two opposite ends of the slide bars 112 are fixedly connected to the rotating shafts 1121, and the top center of the two clamping arms 12 are fixedly connected to the rotating sleeves 121. The two rotating sleeves 121 are respectively sleeved on the two rotating shafts 1121 and rotated together, and the plane of the rotation trajectory is parallel to the mounting plate 11.

[0052] The rotating shaft 1121 is a T-shaped stepped frustum with a wider bottom and a narrower top. By fitting the rotating sleeve 121 onto the rotating shaft 1121, the rotating sleeve 121 and the corresponding clamping arm 12 are hooked onto the rotating shaft 1121, restricting the vertical movement of the rotating sleeve 121 and the clamping arm 12. By rotating the rotating sleeve 121 and the rotating shaft 1121 together, the clamping arm 12 can rotate around the axis of the corresponding rotating shaft 1121. This allows the included angle between the two clamping arms 12 to be freely adjusted, so that the two clamping arms 12 fit the shape of the arm more closely when clamping it, and thus more stably clamp and fix the arm to the arm.

[0053] In this embodiment: the linkage component includes a gear 21 embedded in the mounting plate 11 and rotatably engaged, and two racks 22 respectively meshing with the gear 21. The plane of the rotation trajectory of the gear 21 is parallel to the mounting plate 11.

[0054] The two racks 22 are respectively fixedly connected to the two slide bars 112.

[0055] Two linkage components consisting of gear 21 and two racks 22 are used to quickly adjust the size of the opening between the two clamping arms 12, thereby improving work efficiency.

[0056] In this embodiment: the top surface of the mounting plate 11 is provided with a groove 113, and the opening end of the groove 113 is detachably connected to a cover plate 114;

[0057] One end of the gear 21 is inserted into the bottom wall of the groove 113 and rotates, while the other end is inserted into the cover plate 114 and rotates.

[0058] A groove 113 for mounting gear 21 is opened on the top surface of mounting plate 11, and notches 1131 are opened on the two side walls of the groove 113 facing the two racks 22, so that the teeth of gear 21 protrude from the notches 1131 and mesh with the corresponding racks 22 for transmission; a threaded hole is opened on the bottom surface of the groove 113, and a through hole is opened on the cover plate 114 at the position corresponding to the threaded hole. By passing the threaded end of the bolt through the through hole and connecting it with the threaded hole through threaded engagement, the purpose of the cover plate 114 can be removed, so as to facilitate the removal of the cover plate 114 for inspection and replacement of the various components in the groove 113.

[0059] In this embodiment: the one-way locking part includes a ratchet 23 sleeved on the outside of the end of the gear 21 facing the cover plate 114 and fixedly connected to it, and a pawl 24 meshing with the ratchet 23. The end of the pawl 24 facing away from the ratchet 23 is provided with a rotating rod 25.

[0060] One end of the rotating rod 25 is fixedly connected to the pawl 24, and the other end extends through the cover plate 114, protruding out of the groove 113 and rotating in cooperation with it.

[0061] In this embodiment: the rotating rod 25 is inserted into the bottom wall of the groove 113 at one end facing away from the cover plate 114 and rotates in cooperation with it, and a torsion spring 26 is sleeved on the other end of the rotating rod 25 facing away from the cover plate 114.

[0062] One end of the torsion spring 26 is fixedly connected to the rotating rod 25, and the other end is fixedly connected to the bottom wall of the groove 113. When the torsion spring 26 is in its naturally extended state, the rotating rod 25 pushes the pawl 24 to insert into the tooth groove of the ratchet 23.

[0063] During use, when the two clamping arms 12 are pressed inward, the two clamping arms 12 push the gear 21 to rotate forward through the two racks 22. The gear 21 drives the ratchet 23 to rotate forward. The convex surface of one of the teeth on the ratchet 23 pushes the pawl 24 to rotate forward. The torsion spring 26 deforms and stores energy, so that the tooth of the ratchet 23 smoothly passes over the pawl 24. The torsion spring 26 releases energy and extends freely, pushing the pawl 24 to rotate in the opposite direction and insert into the tooth groove corresponding to the next tooth. As the ratchet 23 continues to rotate forward, the teeth on the ratchet 23 similarly pass over the pawl 24 in turn, and thus the ratchet 23 rotates smoothly forward. When both gripping arms 12 are in contact with the skin, they can no longer move towards each other. The pawl 24 inserts into the tooth groove of the ratchet 23 and abuts against the concave surface of one of the teeth, restricting the forward rotation of the pawl 24 and thus restricting the reverse rotation of the pawl 24, so that the opening size between the two gripping arms 12 remains unchanged, and the arms are stably clamped and fixed on the arm.

[0064] In this embodiment: the rotating rod 25 is provided with a paddle 27 at one end outside the groove 113. One end of the paddle 27 is fixedly connected to the rotating rod 25, and the other end extends radially away from the rotating rod 25.

[0065] A paddle 27 is provided at one end of the rotating rod 25 outside the groove 113. By pushing the paddle 27 to rotate in the forward direction, the rotating rod 25 drives the pawl 24 to rotate in the forward direction and slide out of the tooth groove of the ratchet 23, disengaging from the meshing and contact with the ratchet 23, so that the ratchet 23 can rotate in the reverse direction. Then, by pulling the two clamping arms 12 outward, the opening size between the two clamping arms 12 can be increased, and the clamping of the arms can be canceled.

[0066] In this embodiment, several ventilation holes 122 are provided on both sides of the two clamping arms 12 facing each other.

[0067] By creating ventilation holes 122 on the surface of the clamping arm 12 that comes into contact with the skin, the breathability of the clamping arm 12 is improved, thereby enhancing skin comfort.

[0068] In this embodiment: a U-shaped pipe clamp 115 is fixedly connected to the top surface of the mounting plate 11, and the open end of the U-shaped pipe clamp 115 is located on the side opposite to the mounting plate 11.

[0069] The U-shaped tube clamp 115 is made of silicone material, which gives the U-shaped tube clamp 115 a certain degree of elasticity, so that the tube can be pressed into the U-shaped tube clamp 115 and the tube can be fixed by the U-shaped tube clamp 115.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning device for an intravenous treatment catheter with adjustable function, characterized in that: The mounting plate (11) includes a top surface for mounting a conduit. The bottom surface of the mounting plate (11) is symmetrically provided with two clamping arms (12). The top ends of the two clamping arms (12) are slidably connected to the bottom surface of the mounting plate (11), and the sliding trajectories of the two clamping arms (12) are coplanar. A linkage assembly is provided between the two clamping arms (12) to enable the two clamping arms (12) to slide synchronously in opposite directions on the mounting plate (11); The mounting plate (11) is provided with a one-way locking part for restricting the two clamping arms (12) from sliding back and forth on the mounting plate (11).

2. The intravenous therapy catheter positioning device with adjustable function according to claim 1, characterized in that: The mounting plate (11) has two parallel sliding grooves (111) on its bottom surface, and each of the two sliding grooves (111) is slidably fitted with a sliding strip (112); The two sliding bars (112) are connected to the top ends of the two clamping arms (12) respectively at opposite ends.

3. The intravenous therapy catheter positioning device with adjustable function according to claim 2, characterized in that: The bottom surfaces of the two opposite ends of the slide bars (112) are fixedly connected to the rotating shafts (1121), and the top center of the two clamping arms (12) are fixedly connected to the rotating sleeves (121). The two rotating sleeves (121) are respectively sleeved on the two rotating shafts (1121) and rotated together, and the plane of the rotation trajectory is parallel to the mounting plate (11).

4. The intravenous therapy catheter positioning device with adjustable function according to claim 2, characterized in that: The linkage component includes a gear (21) embedded in the mounting plate (11) and rotatably engaged, and two racks (22) respectively meshing with the gear (21). The plane of the rotation trajectory of the gear (21) is parallel to the mounting plate (11). The two racks (22) are fixedly connected to the two slide bars (112) respectively.

5. The intravenous treatment catheter positioning device with adjustable function according to claim 4, characterized in that: The mounting plate (11) has a groove (113) on its top surface, and a cover plate (114) is detachably connected to the opening end of the groove (113); One end of the gear (21) is inserted into the bottom wall of the groove (113) and rotates, and the other end is inserted into the cover plate (114) and rotates.

6. The intravenous treatment catheter positioning device with adjustable function according to claim 5, characterized in that: The one-way locking part includes a ratchet (23) sleeved on the outside of the end of the gear (21) facing the cover plate (114) and fixedly connected, and a pawl (24) meshing with the ratchet (23). The end of the pawl (24) facing away from the ratchet (23) is provided with a rotating rod (25). One end of the rotating rod (25) is fixedly connected to the pawl (24), and the other end extends out of the groove (113) through the cover plate (114) and is rotatably engaged.

7. The intravenous treatment catheter positioning device with adjustable function according to claim 6, characterized in that: The rotating rod (25) is inserted into the bottom wall of the groove (113) at one end facing away from the cover plate (114) and rotates in cooperation with it. A torsion spring (26) is sleeved on the other end of the rotating rod (25) facing away from the cover plate (114). One end of the torsion spring (26) is fixedly connected to the rotating rod (25), and the other end is fixedly connected to the bottom wall of the groove (113). When the torsion spring (26) is in its natural extended state, the rotating rod (25) pushes the pawl (24) to insert into the tooth groove of the ratchet (23).

8. The intravenous treatment catheter positioning device with adjustable function according to claim 6, characterized in that: The rotating rod (25) has a paddle (27) at one end outside the groove (113). One end of the paddle (27) is fixedly connected to the rotating rod (25), and the other end extends radially away from the rotating rod (25).

9. The intravenous therapy catheter positioning device with adjustable function according to claim 1, characterized in that: The two clamping arms (12) are provided with several ventilation holes (122) on their opposite sides.

10. The intravenous therapy catheter positioning device with adjustable function according to claim 1, characterized in that: The top surface of the mounting plate (11) is fixedly connected to a U-shaped pipe clamp (115), and the open end of the U-shaped pipe clamp (115) is located on the side opposite to the mounting plate (11).

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