Needle withdrawing assist device for infusion port
By designing an infusion port needle extraction auxiliary device with fixed cylinders and limit parts, the stability problem during needle extraction is solved, the harbor needle injury is avoided, and the effect of applying infusion port seats of different sizes and reducing costs is achieved.
Patent Information
- Application Number
- CN202420780087.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-16
AI Technical Summary
During intravenous infusion, the lack of auxiliary devices causes medical staff to be easily injured by the Hong Kong needle when removing needles, increasing the risk of cross-infection.
A needle extraction auxiliary device for infusion ports including fixed cylinders and limiting parts is designed to restrain the infusion port seats through the fixed cylinders, and the drive and spring mechanisms are used to maintain stability to avoid contact between the needle and the hand.
It improves the stability of needle extraction, avoids needle stab wounds, is suitable for infusion port seats of different sizes, and can be reused, reducing costs.
Smart Images
Figure CN222357832U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to an infusion port needle removal assistant. Background Art
[0002] An intravenous infusion port is an intravenous infusion device that is implanted subcutaneously, remains in the body for a long time, and can be carried for life. The setting of an infusion port makes it convenient for patients to receive long-term or repeated medication.
[0003] During infusion through the infusion port, the port needle needs to be replaced regularly. When removing the needle, the medical staff fix the infusion port seat with one hand and replace the port needle with the other hand. In actual operation, since the infusion port seat is small in size and located subcutaneously, and the end of the port needle has a barb structure, when the needle is removed with one hand, since the infusion port needle puller is fixed, the rubber pad of the infusion port is elastic and has a certain thickness, the hand holding the needle will bounce back unconsciously under the action of inertia, which can easily injure the medical staff's hand. The infusion port needle is basically in contact with the patient's blood. Once a needle stick injury occurs, it is easy to cause cross infection. Utility Model Content
[0004] The utility model aims to provide an infusion port needle removal assistant to solve the technical problem in the prior art that in the process of using the infusion port, there is no auxiliary device when removing the needle, and the needle is easily caused by needle stick injury when the needle is removed by hand.
[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:
[0006] An infusion port needle removal aid includes a fixed tube, a first notch is formed through the fixed tube so that an infusion tube connected to the infusion port can freely pass through the fixed tube, and a plurality of stoppers are provided on the fixed tube moving toward the central axis so that a restraining cover of the fixed tube is arranged on the infusion port seat;
[0007] A driving member for driving the limiter to move is arranged on the fixed cylinder. When the infusion ports of different sizes are clamped and fixed, the driving member drives the limiter to move in the fixed cylinder.
[0008] As a preferred solution of the utility model, the limiting member includes a push rod inserted on the peripheral wall of the fixed cylinder, and the push rod moves freely in a direction perpendicular to the central axis of the fixed cylinder, one end of the push rod extends into the interior of the fixed cylinder and is connected to a push block for pressing the infusion port, and a driving member for driving the push rod to move is arranged on the fixed cylinder.
[0009] As a preferred solution of the utility model, the driving member includes an arc-shaped shell sleeved on the peripheral wall of the fixed cylinder, and the shell freely rotates circumferentially along the peripheral wall of the fixed cylinder. An arc-shaped protrusion is connected to the inner wall of the shell. When the shell rotates relative to the fixed cylinder, the arc-shaped protrusion presses the push rod.
[0010] As a preferred solution of the utility model, a spring is sleeved on the push rod, and the spring is located between the push block and the fixing tube, so that the push rod is always in contact with the side of the arc-shaped protrusion under the elastic force of the spring.
[0011] As a preferred solution of the utility model, the peripheral wall of the fixed cylinder is provided with an arc-shaped sliding groove along the circumferential direction, and the housing is inserted into the sliding groove and in sliding contact with the sliding groove;
[0012] A rubber strip is fitted in the slide groove to prevent the shell from moving randomly relative to the fixing cylinder.
[0013] As a preferred solution of the utility model, a second notch corresponding to the first notch is penetrated through the shell, and the arc length of the second notch is greater than the arc length of the first notch to avoid cutting the infusion tube in the first notch during the rotation of the shell relative to the fixed cylinder.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] In the utility model, the fixed tube cover is arranged on the infusion port seat, and the infusion port seat is restrained by the stop block, thereby improving the stability of the infusion port seat when the needle is removed. When the needle is removed, the fixed tube is used to separate the needle from the user's hand, and the distance between the user's hand and the needle is increased to avoid the port needle from stabbing the user. In addition, the device is not only suitable for infusion ports of different sizes, but can also be reused between different patients. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0017] Figure 1 A schematic diagram of the structure of the infusion port needle removal aid is provided for an embodiment of the utility model;
[0018] Figure 2 for Figure 1 Schematic diagram of the cut structure at AA in the middle;
[0019] Figure 3 A schematic diagram of a top view of the structure of an infusion port needle removal aid is provided for an embodiment of the utility model;
[0020] The numbers in the figure represent the following:
[0021] 1 fixed cylinder, 101 first notch;
[0022] 2 shell, 201 second notch;
[0023] 3. Retaining rods, 4. Springs, 5. Retaining blocks, 6. Arc-shaped protrusions, 7. Handles, and 8. Slide grooves. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides an infusion port needle removal aid, including a fixed cylinder 1, a first notch 101 is penetrated through the fixed cylinder 1, so that the infusion tube connected to the infusion port can freely pass through the fixed cylinder 1, and a plurality of limit members clamped toward the central axis are arranged on the lower side of the peripheral wall of the fixed cylinder 1, so that the restraining cover of the fixed cylinder 1 is arranged on the infusion port seat.
[0026] A driving member for driving the limiter to move is provided on the fixed cylinder 1. When the infusion ports of different sizes are clamped and fixed, the driving member drives the limiter to move in the fixed cylinder 1, so that the fixed cylinder 1 can constrain the cover to be set on the infusion port seats of different sizes.
[0027] When in use, the fixing tube 1 is covered on the subcutaneous infusion port, the infusion tube is placed in the first notch 101, and the limiting member is adjusted by the driving member so that the limiting member fits with the skin on the infusion port, thereby limiting the infusion port. Compared with fixing the infusion port by two points of fingers, the stability is higher.
[0028] And when the port needle is pulled out, the fixing tube 1 separates the port needle head from the user's hand, thereby preventing the port needle from stabbing the user.
[0029] Furthermore, the device can not only be used to remove needles, but also can better fix the infusion port seat when inserting the needle, thereby assisting the needle insertion, and can be reused between different patients, reducing the cost of use.
[0030] In one of the embodiments, the limiting member includes a push rod 3 inserted on the peripheral wall of the fixed cylinder 1, and the push rod 3 moves freely in a direction perpendicular to the central axis of the fixed cylinder 1. One end of the push rod 3 extends into the interior of the fixed cylinder 1 and is connected to a push block 5 for pressing the infusion port. A driving member for driving the push rod 3 to move is provided on the fixed cylinder 1.
[0031] When in use, the push rod 3 is driven by the driving member to move so that multiple push rods 3 move toward the infusion port seat, and the push rod 3 drives the push block 5 to constrain the infusion port seat. Furthermore, the user covers the infusion port seat through the fixed tube 1, so that the user can pull the port needle out of the first notch 101. In this process, the infusion port seat is constrained around by the fixed tube 1.
[0032] Preferably, the driving member includes an arc-shaped shell 2 sleeved on the peripheral wall of the fixed cylinder 1, and the shell 2 rotates freely along the peripheral wall of the fixed cylinder 1. An arc-shaped protrusion 6 is connected to the inner wall of the shell 2, and the end of the push rod 3 located outside the fixed cylinder 1 is in sliding contact with the inclined surface of the arc-shaped protrusion 6.
[0033] When the shell 2 rotates about the fixed tube 1, the arc-shaped protrusion 6 gradually pushes the push rod 3 to move toward the central axis of the fixed tube 1, so that the device is suitable for fixing infusion ports of different sizes. After the needle is removed, the shell 2 is rotated in the opposite direction to loosen and separate the push rod 3 and the arc-shaped protrusion 6, so that the user can easily separate the fixed tube 1 from the infusion port.
[0034] Preferably, a spring 4 is slidably sleeved on the push rod 3, and the spring 4 is located between the push block 5 and the fixed cylinder 1, and the two ends of the spring 4 are fixedly connected to the push block 5 and the inner wall of the fixed cylinder 1 respectively, so that when the above-mentioned shell 2 rotates forward or reversely relative to the fixed cylinder 1, under the action of the elastic force of the spring 4, the push rod 3 always abuts against the side of the arc-shaped protrusion 6. Therefore, after the fixed cylinder 1 is separated from the infusion port seat, the push rod 3 and the push block 5 are automatically reset to facilitate the next use.
[0035] Preferably, an arc-shaped slide groove 8 is opened on the peripheral wall of the fixing cylinder 1 along the circumferential direction, the housing 2 is inserted into the slide groove 8 and is in sliding contact with it, and the cross section of the slide groove 8 is wedge-shaped to prevent the housing 2 from slipping off the slide groove 8.
[0036] A rubber strip is fitted in the slide groove 8 , and the friction between the housing 2 and the slide groove 8 is increased by the rubber strip to prevent the housing 2 from moving randomly relative to the fixed cylinder 1 .
[0037] Preferably, a second notch 201 corresponding to the first notch 101 is formed through the shell 2 , and the arc length of the second notch 201 is greater than that of the first notch 101 , so as to prevent the infusion tube in the first notch 101 from being cut during the rotation of the shell 2 relative to the fixed cylinder 1 .
[0038] Preferably, a handle 7 is connected to the fixing tube 1 to facilitate the user to press the fixing tube 1 .
[0039] The lower end surface of the fixing tube 1 is wrapped with soft silicone material to improve the comfort of contacting the patient's skin.
[0040] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.
Claims
1. An infusion port needle removal aid, characterized in that: The invention comprises a fixed tube (1), a first notch (101) is formed through the fixed tube (1), so that an infusion tube connected to an infusion port can freely pass through the fixed tube (1), and a plurality of stoppers are provided on the fixed tube (1) which move toward the central axis thereof, so that a restraining cover of the fixed tube (1) is arranged on the infusion port seat; A driving member for driving the limiting member to move is arranged on the fixing cylinder (1); when infusion ports of different sizes are clamped and fixed, the driving member drives the limiting member to move inside the fixing cylinder (1).
2. The infusion port needle removal aid according to claim 1, characterized in that: The limiting member comprises a push rod (3) inserted on the peripheral wall of the fixed cylinder (1), and the push rod (3) moves freely in a direction perpendicular to the central axis of the fixed cylinder (1), one end of the push rod (3) extends into the interior of the fixed cylinder (1) and is connected to a push block (5) for pressing the infusion port, and a driving member for driving the push rod (3) to move is arranged on the fixed cylinder (1).
3. The infusion port needle removal aid according to claim 2, characterized in that: The driving member comprises an arc-shaped shell (2) sleeved on the peripheral wall of the fixed cylinder (1), and the shell (2) is freely rotatable along the peripheral wall of the fixed cylinder (1). An arc-shaped protrusion (6) is connected to the inner wall of the shell (2). When the shell (2) rotates relative to the fixed cylinder (1), the arc-shaped protrusion (6) presses against the push rod (3).
4. The infusion port needle removal aid according to claim 3, characterized in that: A spring (4) is sleeved on the push rod (3), and the spring (4) is located between the push block (5) and the fixing tube (1). Under the elastic force of the spring (4), the push rod (3) always pushes against the side surface of the arc-shaped protrusion (6).
5. The infusion port needle removal aid according to claim 4, characterized in that: The peripheral wall of the fixed cylinder (1) is provided with an arc-shaped sliding groove (8) along the circumferential direction, and the housing (2) is inserted into the sliding groove (8) and is in sliding contact with the sliding groove; A rubber strip is fitted in the slide groove (8) to prevent the housing (2) from moving randomly relative to the fixed cylinder (1).
6. The infusion port needle removal aid according to claim 3, characterized in that: A second notch (201) corresponding to the first notch (101) is formed through the shell (2), and the arc length of the second notch (201) is greater than the arc length of the first notch (101), so as to prevent the infusion tube in the first notch (101) from being cut during the rotation of the shell (2) relative to the fixed cylinder (1).