CN219128009U

CN219128009U - Keep somewhere needle tube sealing clamp

Info

Publication number: CN219128009U
Application number: CN202320036544.8U
Authority: CN
Inventors: 叶礼芹
Original assignee: Anhui Children's Hospital Anhui Xinhua Hospital Anhui Institute Of Pediatrics Anhui Hospital Of Pediatrics Affiliated To Fudan University
Current assignee: Anhui Children's Hospital Anhui Xinhua Hospital Anhui Institute Of Pediatrics Anhui Hospital Of Pediatrics Affiliated To Fudan University
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-06-06
Anticipated expiration: 2033-01-07

Abstract

The utility model discloses an indwelling needle sealing tube clamp which comprises a first clamping rod and a second clamping rod connected with the first clamping rod in a head-tail rotation mode, wherein a clamping gap is formed between the first clamping rod and the second clamping rod; the two ends of the first clamping rod are respectively provided with a first limiting plate and a first limiting hole, the two ends of the second clamping rod are respectively provided with a second limiting plate and a second limiting hole, the first limiting plates and the second limiting plates are all arranged in the clamping gaps, and a catheter of a remaining needle can pass through the clamping gaps and is positioned between the first limiting plates and the second limiting plates. When the clamping force is released, and the guide pipe is extruded, so that the deformation of the guide pipe in the direction perpendicular to the clamping force is recovered to the original length, the unsmooth circulation caused by flattening of the guide pipe is prevented, and the service life of the guide pipe is prolonged.

Description

Keep somewhere needle tube sealing clamp

Technical Field

The utility model relates to the technical field of medical auxiliary instruments, in particular to an indwelling needle sealing tube clamp.

Background

The conventional tube sealing clip generally realizes tube sealing by pressing a catheter of a retention needle, such as the tube sealing clip disclosed in a medical indwelling needle (publication number: CN 202314702U) with an elastic positive pressure tube sealing clip, and realizes tube sealing by pressing the catheter.

However, due to external factors such as the movable friction of the patient, the catheter is easy to slip from the clamping state of the tube sealing clamp, so that the catheter is changed into an open state, venous blood flows back to the catheter, and blockage is caused. In order to prevent the falling-off, it is necessary to enhance the pressing force of the clip against the catheter to increase the friction force of the clip against the catheter.

However, as the clamping force is increased, the deformation of the catheter is larger, after the limit of the catheter is released by the sealing pipe clamp, the pressed position of the catheter can generate larger deformation, the catheter is not easy to restore to the original state, the catheter can be flattened, the fluidity of the liquid medicine in the later infusion process is influenced, and the service life of the catheter is influenced.

Disclosure of Invention

The utility model aims to provide an indwelling needle sealing tube clamp, which aims to solve the technical problem that deformation of a catheter is not easy to recover in the prior art.

In order to solve the technical problems, the utility model specifically provides the following technical scheme:

the utility model provides an indwelling needle sealing tube clamp which comprises a first clamping rod and a second clamping rod connected with the first clamping rod in a head-tail rotation mode, wherein a clamping gap is formed between the first clamping rod and the second clamping rod;

the two ends of the first clamping rod are respectively provided with a first limiting plate and a first limiting hole, the two ends of the second clamping rod are respectively provided with a second limiting plate and a second limiting hole, the first limiting plate and the second limiting plate are both arranged in the clamping gap, and a catheter of the indwelling needle can pass through the clamping gap and is positioned between the first limiting plate and the second limiting plate;

when the clamping gap is contracted, the first limiting plate can penetrate through the second limiting hole and is fixed in the second limiting hole, meanwhile, the second limiting plate can penetrate through the first limiting hole and is fixed in the first limiting hole, and the first clamping rod and the second clamping rod compress the guide pipe under the limiting action and enable the guide pipe to be closed.

As a preferred embodiment of the present utility model, the first clamping bar and the second clamping bar are connected by a rotating bearing.

As a preferable mode of the utility model, when the clamping gap is opened, the first clamping rod and the second clamping rod are both bent into an arc shape, and the distance between the straight lines of the first limiting plate and the second limiting plate is reduced along with the increase of the width of the clamping gap.

As a preferable mode of the utility model, the center of the clamping gap is taken as a symmetry point, the first limiting plate and the second limiting plate are symmetrical about the symmetry point, and the first limiting hole and the second limiting hole are symmetrical about the symmetry point.

As a preferable scheme of the utility model, the first limiting plate and the second limiting plate are respectively provided with a plurality of mutually parallel limiting strips, the limiting strips are transversely arranged on the first limiting plate and the second limiting plate at equal intervals, and the distance between the two limiting strips is equal to the depth of the first limiting hole.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the limiting rods perpendicular to the clamping rods are arranged between the two clamping rods, when the clamping rods are mutually far away and clamp the guide pipe is released, the two limiting rods are mutually close to each other under the deformation action of the clamping rods and simultaneously squeeze the guide pipe, so that the deformation of the guide pipe in the direction perpendicular to the clamping force is restored to the original length, the unsmooth circulation caused by flattening of the guide pipe is prevented, and the service life of the guide pipe is prolonged; and the operation by one hand is convenient, and the structure is simple.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

FIG. 1 is a schematic view of a structure of an indwelling needle clip according to the present utility model;

FIG. 2 is a schematic view of the structure of the retention needle tube sealing clip for inward clamping action according to the present utility model;

fig. 3 is a schematic view of an inner side structure of a first clamping bar according to the present utility model.

Reference numerals in the drawings are respectively as follows:

1-a first clamping bar; 2-a second clamping bar; 3-a first limiting plate; 4-a first limiting hole; 5-a second limiting plate; 6-a second limiting hole; 7-a rotating bearing; 8-limit strips.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 3, the present utility model provides an indwelling needle sealing clip, which comprises a first clip lever 1 and a second clip lever 2 rotatably connected with the head and the tail of the first clip lever 1, a clamping gap is provided between the first clip lever 1 and the second clip lever 2, a rotating bearing 7 is provided at the connection part of the first clip lever 1 and the second clip lever 2, the first clip lever 1 and the second clip lever 2 have certain elasticity, when the first clip lever 1 and the second clip lever 2 are close to each other, the width of the clamping gap is reduced to become a gap, when the first clip lever 1 and the second clip lever 2 are far from each other to become an arc shape, the width of the clamping gap is increased to become a hole, and a catheter of the indwelling needle can pass through the clamping gap and be clamped when the first clip lever 1 and the second clip lever 2 are close to each other.

Specifically, in order to reduce the clamping gap, the catheter can be extruded between the first clamping rod 1 and the second clamping rod 2, the two ends of the first clamping rod 1 are respectively provided with a first limiting plate 3 and a first limiting hole 4, the two ends of the second clamping rod 2 are respectively provided with a second limiting plate 5 and a second limiting hole 6, the first limiting plate 3 and the second limiting plate 5 are both arranged in the clamping gap, and the catheter of the indwelling needle can pass through the clamping gap and is positioned between the first limiting plate 3 and the second limiting plate.

In the initial state, the distance between the straight lines of the first limiting plate 3 and the second limiting plate 5 is the diameter of the guide pipe.

When the clamping gap contracts, the first limiting plate 3 can penetrate through the second limiting hole 6 and is fixed in the second limiting hole 6, meanwhile, the second limiting plate 5 can penetrate through the first limiting hole 4 and is fixed in the first limiting hole 4, the first clamping rod 1 and the second clamping rod 2 are close to each other and flatten the guide pipe, the first clamping rod 1 and the second clamping rod 2 compress the guide pipe under the limiting action, the guide pipe is closed, and at the moment, the straight line where the first limiting plate 3 and the second limiting plate 5 are located is correspondingly far away.

When the clamping gap is opened, the first limiting plate 3 is separated from the second limiting hole 6, the second limiting plate 5 is separated from the first limiting hole 4, the clamping of the first clamping rod 1 and the second clamping rod 2 to the guide pipe is released, and as the first clamping rod 1 and the second clamping rod 2 can deform, the distance between the straight lines where the first limiting plate 3 and the second limiting plate 5 are located is also continuously reduced along with the continuous increase of the clamping gap, and the guide pipe is extruded between the first limiting plate 3 and the second limiting plate 5, so that the guide pipe is restored to the width.

When the catheter is extruded by the first clamping rod 1 and the second clamping rod 2, the catheter is extruded in the X direction, the catheter transversely stretches in the Y direction, the X direction is mutually perpendicular to the Y direction, after the first clamping rod 1 and the second clamping rod 2 are far away, limiting is released, the catheter is extruded by the first limiting plate 3 and the second limiting plate 5 in the Y direction, the stretching of the catheter in the Y direction is restored to be original shape, and the situation that the shape of the catheter cannot be restored when the extrusion is released, so that the infusion tube is not smooth is prevented.

The first clamping rod 1 is movably connected with the second clamping rod 2, and in order to facilitate the opening of the clamping gap, the first clamping rod 1 is connected with the second clamping rod 2 through a rotating bearing 7. Medical personnel press the end of first clamping lever 1 and second clamping lever 2 simultaneously, and first clamping lever 1 and second clamping lever 2 are to the width direction upward deformation in centre gripping space, and first limiting plate 3 deviate from with second limiting plate 5, release promptly to spacing between first clamping lever 1 and the second clamping lever 2, convenient to use.

When the clamping gap presses the catheter, the distance between the first clamping rod 1 and the second clamping rod 2 is nearest, the first clamping rod 1 and the second clamping rod 2 are almost straight lines, and the distance between the straight lines of the first limiting plate 3 and the second limiting plate 5 is shortest.

When the clamping gap is opened, the first clamping rod 1 and the second clamping rod 2 are bent into an arc shape, and the distance between the straight lines where the first limiting plate 3 and the second limiting plate 5 are located is gradually reduced along with the increase of the width of the clamping gap, so that the shape recovery of the catheter is facilitated.

In order to facilitate production, the shapes of the first limiting plate 3 and the second limiting plate 5 are identical, the shapes of the first limiting hole 4 and the second limiting hole 6 are also identical, the center of the clamping gap is taken as a symmetrical point, the first limiting plate 3 and the second limiting plate 5 are symmetrical about the symmetrical point, and the first limiting hole 4 and the second limiting hole 6 are symmetrical about the symmetrical point.

When medical personnel press the middle section of first clamping lever 1 and second clamping lever 2 simultaneously, first limiting plate 3 can penetrate to in the second spacing hole 6, and second limiting plate 5 can penetrate in the first spacing hole 4 simultaneously.

Because normal saline in the catheter can be rapidly pushed into the blood vessel again in the extrusion process, a positive pressure state is formed in the indwelling needle catheter, the blood return blocking of the catheter is avoided, the distance between the first clamping rod 1 and the second clamping rod 2 cannot be too short in the process of moving the sealing pipe clamp, the movement of the sealing pipe clamp can be limited by too short, a plurality of mutually parallel limiting strips 8 are arranged on the first limiting plate 3 and the second limiting plate 5, the limiting strips 8 are transversely arranged on the first limiting plate 3 and the second limiting plate 5 at equal intervals, and the distance between the two limiting strips 8 is equal to the depth of the first limiting hole 4.

When the first clamping rod 1 and the second clamping rod 2 are pushed, the limiting strips 8 can limit the first limiting plate 3 and the second limiting plate 5 to any depth of the second limiting hole 6 and the first limiting hole 4, the size of the clamping gap can be freely controlled, the width of the clamping gap is continuously reduced along with the continuous increase of the force, the clamping force born by the guide pipe is continuously increased, and finally the pipe sealing is realized.

Through the indwelling needle tube sealing clamp of the embodiment, when the catheter is released from clamping, the catheter is extruded at the same time, so that the deformation of the catheter in the direction perpendicular to the clamping force is restored to the original length, unsmooth circulation caused by flattening of the catheter is prevented, and the service life of the catheter is prolonged; and the operation by one hand is convenient, and the structure is simple.

The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements may be made to the present application by those skilled in the art, which modifications and equivalents are also considered to be within the scope of the present application.

Claims

1. The indwelling needle sealing pipe clamp is characterized by comprising a first clamping rod (1) and a second clamping rod (2) which is connected with the first clamping rod (1) in a head-tail rotation mode, wherein a clamping gap is formed between the first clamping rod (1) and the second clamping rod (2);

the two ends of the first clamping rod (1) are respectively provided with a first limiting plate (3) and a first limiting hole (4), the two ends of the second clamping rod (2) are respectively provided with a second limiting plate (5) and a second limiting hole (6), the first limiting plate (3) and the second limiting plate (5) are both arranged in the clamping gap, and a catheter of an indwelling needle can pass through the clamping gap and is positioned between the first limiting plate (3) and the second limiting plate;

when the clamping gap is contracted, the first limiting plate (3) can penetrate through the second limiting hole (6) and is fixed in the second limiting hole (6), meanwhile, the second limiting plate (5) can penetrate through the first limiting hole (4) and is fixed in the first limiting hole (4), and the first clamping rod (1) and the second clamping rod (2) compress the guide pipe under the limiting action and enable the guide pipe to be closed.

2. An indwelling needle clip according to claim 1, in which the first clip lever (1) and the second clip lever (2) are connected by a rotational bearing (7).

3. An indwelling needle sealing clip according to claim 1, in which when the clamping gap is opened, the first clamping bar (1) and the second clamping bar (2) are both curved in an arc shape, and the distance between the straight lines of the first limiting plate (3) and the second limiting plate (5) decreases with increasing width of the clamping gap.

4. An indwelling needle sealing clip according to claim 1, in which the centre of the clamping gap is taken as a point of symmetry, the first limiting plate (3) and the second limiting plate (5) are centrosymmetric with respect to the point of symmetry, and the first limiting hole (4) and the second limiting hole (6) are centrosymmetric with respect to the point of symmetry.

5. The indwelling needle sealing clamp according to claim 4, wherein a plurality of mutually parallel limiting strips (8) are arranged on the first limiting plate (3) and the second limiting plate (5), the limiting strips (8) are transversely arranged on the first limiting plate (3) and the second limiting plate (5) at equal intervals, and the distance between the two limiting strips (8) is equal to the depth of the first limiting hole (4).