CN218793387U - Auxiliary needle pulling and inserting device for transfusion port - Google Patents

Abstract

The utility model discloses an auxiliary needle pulling device for an infusion port, which comprises two connecting rods, and the two connecting rods are crossed and rotated to form an X-shaped scissor structure. The half-clamp rings are respectively connected with the two connecting rods to form an openable and closable clamping mechanism, and the top surfaces of the two half-clamp rings are provided with a half-pressing ring. When the clamping mechanism is closed, the two half-pressing rings are combined to form a complete A ring structure with a pinhole in the middle. The utility model has the advantages of effectively improving the safety when pulling out and inserting needles, being convenient to use, stable in pressing and capable of reducing pressure injuries.

Description

An auxiliary needle puller for infusion port

technical field

The utility model relates to the field of medical instruments, in particular to an auxiliary needle pulling device for an infusion port.

Background technique

The infusion port is an infusion device completely implanted in the human body. It is mainly implanted in the right chest or upper arm. It has the advantages of long retention time, simple maintenance, and avoiding drug extravasation. It is widely used in clinical infusion of various drugs, intravenous high-energy Nutrition, blood transfusion and blood sample collection and other treatment. Especially in the field of tumor treatment, a safe and reliable intravenous access can be established through the infusion port for the infusion of chemotherapy drugs. At present, the incidence of cancer in my country is high, and there is an upward trend and the characteristics of malignant tumors are younger. Therefore, the infusion port is used It is increasingly used in the treatment of adult and pediatric tumors.

The infusion port is implanted under the skin, including the infusion port seat. The infusion port seat will push the skin up to form a circular bulge. When infusing drugs, a non-invasive needle (butterfly wing needle) needs to be inserted to establish a connection with the infusion port seat. Connection. It is found in clinical work that if the pouch under the skin where the infusion port is located is loose and lacks the surrounding soft tissue fixation, the stability of the infusion port will be reduced, which will affect the precise positioning and insertion depth of the medical staff when inserting the needle, and needle insertion failure may occur It will not only bring pain caused by repeated punctures to patients, but also affect the safety of the infusion port due to complications such as displacement and flipping of the infusion port seat, local infection of the puncture point, and seepage of the infusion port due to irregular operations during the process. service life. In addition, in order to prevent leakage, the silicone diaphragm on the infusion port is generally relatively thick, and the silicone material is highly viscous. The resistance formed when the needle is pulled out will pull the patient's subcutaneous tissue, causing skin relaxation and reducing the stability of the infusion port. sex. Therefore, at present, clinical medical staff generally press the base of the infusion port with two or three fingers when inserting and pulling out the non-damaging needle. However, pressing the infusion port seat with your hands may cause the risk of stabbing the fingers of the medical staff when inserting the needle. When the needle is pulled out, the inertia will cause the hand holding the needle to rebound unconsciously, which will easily scratch the medical staff and increase the risk of injury. reduce the risk of medical staff being infected by pathogens carried by needles.

The utility model patent with the publication number CN207871222U discloses an anti-injury device for pulling out needles in the infusion port. When the anti-injury device is in use, align the semicircular holes in the center of the upper and lower bottom plates with the needle tube in the infusion port, and press the handle to make the bottom plate tight. Press the infusion port seat of the infusion port, pinch the puncture needle seat with the other hand, and pull out the puncture needle, which can effectively prevent the medical staff from touching the puncture needle tube with their fingers, and improve the safety of pulling out the needle at the infusion port. However, the above infusion port The anti-injury device for pulling needles is a clamp-like structure, which is inconvenient to press, and it is difficult to accurately locate the position of the infusion port under the skin by pressing the infusion port seat through the bottom plate, and it is easy to press to a local position of the infusion port seat or a side, resulting in an unbalanced applied force, which may easily lead to unstable pressure or even push the infusion port seat to deflect or horizontally shift. The utility model patent with the publication number CN211068448U discloses a new type of needle puller for infusion port. When the needle puller is in use, the two sides of the infusion port seat are clamped by the chuck to limit the displacement of the infusion port seat. The resistance formed by the needle mainly causes the infusion port to be pulled in the direction of the central axis, and the clamping force of the above-mentioned chuck acts on both sides of the infusion port when clamping, and it needs to apply a horizontal clamping force at the same time during use. and vertical pressing force, it takes a lot of effort and there is a possibility of relative movement between the chuck and the infusion port seat, and when the raised height of the infusion port seat is not high, the area that can be clamped is too small, and there is a possibility of clamping It is inconvenient to hold and it is easy to cause pressure damage to the skin due to excessive local pressure.

How to solve the above problems has become an urgent technical problem.

Utility model content

The purpose of this utility model is to provide an auxiliary needle pulling device for infusion port, which can effectively improve the safety of needle pulling and insertion, is convenient to use, stable in pressing and can reduce pressure. damage.

In order to achieve the above object, the utility model adopts the following technical solutions:

The utility model provides an auxiliary needle pulling device for an infusion port, which includes two connecting rods, and the two connecting rods are crossed and rotated to form an X-shaped scissor structure, and also include two half clamp rings, two The half-clamp rings are respectively connected with two connecting rods to form an openable and closable clamping mechanism, and the top surfaces of the two half-clamp rings are provided with a half-pressing ring, and when the clamping mechanism is closed, the two half-pressing rings are combined Form a complete ring structure with a needle opening in the middle.

Further, the ends of the two connecting rods far away from the half-clamp rings are provided with snap-fit parts, and the two snap-fit parts are snap-fitted.

Further, finger rings are provided at the ends of the two connecting rods away from the half clamp rings.

Further, the two connecting rods are cross-rotatably connected through a rotating shaft.

Further, an outer ring is provided on the bottom surface of one of the half clamp rings.

Further, the inner wall of each half-clamp ring, the inner wall of each half-press ring, and the bottom surface of the outer ring are all provided with a cushion layer.

Owing to adopting above-mentioned structure, the beneficial effect that the utility model has is as follows:

The utility model is provided with two half-clamp rings. When in use, the opening and closing of the half-clamp rings is controlled by a connecting rod, so that both sides of the infusion port seat can be clamped, the positioning is accurate and the horizontal deviation of the infusion port seat can be prevented. In addition, half pressure rings are arranged on the top surfaces of the two half clamp rings. When the half clamp rings clamp the infusion port seat, the half pressure ring is located above the infusion port seat, and can exert pressing force on the infusion port seat through the half pressure ring. Effectively prevent the infusion port seat from moving in the vertical direction. Therefore, the utility model can apply horizontal clamping force and vertical pressing force to the infusion port seat at the same time, is convenient to use, stable in pressing, and can reduce pressure injuries, thereby improving the safety of medical staff when pulling out needles and inserting needles.

The utility model will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the utility model.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of the utility model when closing;

Fig. 2 is a structural schematic diagram of the utility model when it is opened.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 and Fig. 2, an auxiliary needle insertion device for an infusion port provided by the utility model, which includes two connecting rods 1, and the two connecting rods 1 are crossed and connected to each other to form an X-shaped scissor structure , also includes two half clamp rings 2, the two half clamp rings 2 are respectively connected with two connecting rods 1 to form an openable clamping mechanism and the top surfaces of the two half clamp rings 2 are provided with a half pressure ring 3 , when the clamping mechanism is closed, the two half-pressure rings 3 are combined to form a complete ring structure with a needle opening 4 in the middle. Each of the half-clamp rings 2 is connected with the corresponding half-press ring 3 to form an inverted L-shaped structure; when in use, the half-clamp rings 2 are controlled to close by the connecting rod 1, thereby clamping the infusion port seat and when the half clamp ring 2 clamps the infusion port seat, the half pressure ring 3 is located above the infusion port seat, and the medical staff can apply pressure to the infusion port seat through the half pressure ring 3, thereby effectively preventing the infusion port from The seat moves in the vertical direction, and medical personnel enter and exit the needle through the needle port 4, which facilitates the positioning of the puncture.

In the present utility model, the ends of the two connecting rods 1 far away from the half-clamp ring 2 are provided with a snap-fitting part 5, and the two snap-fitting parts 5 are snap-fitted. The ends of the two snapping parts 5 far away from the connecting rod 1 are provided with elastically deformable protrusions opposite in direction; when the clamping mechanism is closed, the two snapping parts 5 are snap-connected, so that medical personnel do not have to forcefully close the clips all the time. When the clamping mechanism needs to be opened, the scissor structure is opened by force, and elastic deformation occurs between the two occlusal parts 5, so that the two occlusal parts 5 are separated, and the two connecting rods 1 can become larger, and drive the clamping mechanism to open.

In the present utility model, the ends of the two connecting rods 1 far away from the half-clamp ring 2 are provided with finger rings 6 . When in use, insert the index finger and the thumb into the finger ring 6 respectively, so that the medical personnel can control the opening and closing of the clamping mechanism through fingers.

In the utility model, the two connecting rods 1 are cross-rotatably connected by a rotating shaft 7 .

In the present utility model, an outer ring 8 is arranged on the bottom surface of one of the half-clamp rings 2, and after the needle is pulled out, the outer ring 8 can press the pinhole to stop bleeding. The bottom surface of the outer ring 8 is at the same level as the bottom surface of the half clamp ring 2 .

In the present utility model, the inner wall of each half-clamp ring 2, the inner wall of each half-press ring 3, and the bottom surface of the outer ring 8 are all provided with a cushion layer. The cushion layer is made of gauze or cotton, which can improve the comfort when the half-clamp ring 2, the half-press ring 3, and the outer ring 8 are in contact with the patient's skin, and at the same time facilitate hemostasis by compression after the needle is pulled out.

When the utility model is in use, the index finger and the thumb are first inserted into the finger ring 6 respectively, and then the two half-clamp rings 2 are stretched through the connecting rod 1, so that the two half-clamp rings 2 can be respectively set on the two sides of the infusion port seat. side, and then close the two half-clamp rings 2 so that the two half-clamp rings 2 respectively clamp the two sides of the infusion port seat, and when the half-clamp rings 2 clamp the infusion port seat, the two snap-fitting parts 5 are snap-connected, The two half pressure rings 3 are located above the infusion port seat and are closed to form a complete ring structure. The medical staff can apply pressing force to the infusion port seat through the connecting rod 1 and the half pressure ring 3 in order to fix the infusion port seat, so that the medical staff can When pulling out and inserting the non-damaged needle through the needle port 4, it hurts itself, and the infusion port seat cannot be pulled to be displaced.

The preferred embodiments of the present utility model have been described above. It should be understood that the utility model is not limited to the above-mentioned specific embodiments, and the devices and structures not described in detail should be understood as being implemented in a common way in the art; any person familiar with the art, without departing from Under the scope of the technical solution of the utility model, many possible changes and modifications can be made to the technical solution of the utility model by using the methods and technical contents disclosed above, or be modified into equivalent embodiments with equivalent changes, which does not affect the utility model. new substance. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical proposal of the present invention.

Claims (6)

1. An auxiliary needle puller for infusion ports, comprising two connecting rods (1), and the two connecting rods (1) are cross-rotated and connected to each other to form an X-shaped scissor structure; it is characterized in that: it also includes two The half clamp rings (2), the two half clamp rings (2) are respectively connected with the two connecting rods (1) to form an openable clamping mechanism and the top surfaces of the two half clamp rings (2) are provided with half The pressure ring (3), when the clamping mechanism is closed, the two half pressure rings (3) are combined to form a complete ring structure with a needle opening (4) in the middle. 2. A device for assisting needle withdrawal at an infusion port according to claim 1, characterized in that: the ends of the two connecting rods (1) away from the half-clamp ring (2) are both provided with a snap-in piece (5), The two snap-fitting parts (5) are snap-fitted. 3. An auxiliary needle insertion device for infusion port according to claim 1 or 2, characterized in that: the ends of the two connecting rods (1) away from the half clamp ring (2) are provided with finger rings (6 ). 4. The needle insertion device for assisting infusion port extraction according to claim 1 or 2, characterized in that: the two connecting rods (1) are cross-rotatably connected by a rotating shaft (7). 5 . The device for assisting needle withdrawal for infusion port according to claim 1 or 2 , characterized in that: an outer ring ( 8 ) is provided on the bottom surface of one of the half clamp rings ( 2 ). 6. A device for assisting needle extraction at an infusion port according to claim 5, characterized in that: the inner wall of each half-clamp ring (2), the inner wall of each half-press ring (3), the outer ring (8 ) are provided with a cushion layer on the bottom surface.

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