CN210673927U

CN210673927U - Keep somewhere end cap and keep somewhere needle of needle

Info

Publication number: CN210673927U
Application number: CN201920596687.8U
Authority: CN
Inventors: 熊静
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-06-05
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses an keep somewhere end cap of needle and keep somewhere needle, the inside vacuole formation of end cap, two relative terminal surfaces of end cap with two sections parts between the cavity dissect the inside crossing section that forms of end cap. The indwelling needle includes the end cap. The utility model provides an end cap is for can puncture end cap, through inside and outside the cavity is isolated, extracts when the blood taking needle during the blood sampling, hole or gap that the end cap can sealed blood taking needle completely and extract the back and leave, and blood can't flow in the cavity is when disinfecting to the end cap, because hole or gap that the end cap can sealed blood taking needle completely and extract the back and leave, and disinfection liquid or other impurity also can't get into from the outside the cavity has eliminated disinfection safety risk.

Description

Keep somewhere end cap and keep somewhere needle of needle

Technical Field

The utility model belongs to the technical field of injection puncture apparatus technique and specifically relates to an end cap of remaining needle and remaining needle is related to.

Background

At present, in clinical practice, the use of the indwelling needle not only reduces the pain of a patient caused by repeated puncture of veins (arteries), but also lightens the workload of medical workers and facilitates clinical medication, so that the indwelling needle is more and more widely applied in clinical practice. The commonly used Y-shaped indwelling needle comprises a three-way liquid guide seat, and when in use, a pressure valve (main end) arranged on the three-way liquid guide seat is connected with a transfusion tube for dropping liquid, monitoring electrocardio and the like; the liquid inlet pipe (secondary end) of the end cap is arranged on the three-way liquid guide seat and is used for sampling blood or inputting other medicines to a patient. However, the existing indwelling needle has some defects in the using process: in the blood collection process of the existing indwelling needle, a syringe is required to collect blood samples from the auxiliary end of the indwelling needle and then the blood samples are injected into a vacuum blood collection tube through a puncture needle, and the blood and air junction possibly occurs during transfusion, so that the blood inspection accuracy is influenced and the operation is complicated; keep somewhere the needle and accomplish the back at blood sampling or medicine delivery, the secondary end need wash the disinfection, and this in-process probably leads to disinfection liquid and other to remain in the admission pipe, probably leads to the infection to the cleaning process can operate repeatedly for the sanitization, and the process is more loaded down with trivial details, and is inefficient, still touches the catheter needle of keeping somewhere on the patient body easily, causes to become flexible.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an end cap of remaining needle and remaining needle to simplify blood sampling and disinfection journey, improve the blood sampling blood inspection degree of accuracy, eliminate disinfection safety risk.

In order to achieve the purpose, the utility model provides an end cap of remaining needle, the inside cavity that forms of end cap, two relative terminal surfaces of end cap with two sections parts between the cavity are dissected the inside crossing section that forms of end cap.

Optionally, the end cap is a cylinder, the cavity is a cylinder, and the axis of the cavity is collinear with the axis of the end cap.

Optionally, the cutting plane is a cross cutting plane or a Y-shaped cross cutting plane.

Optionally, the diameter of the cylinder circumscribed by the cutting plane is smaller than the diameter of the cavity.

Optionally, a round hole is formed in one end face of the end cap, the depth of the round hole is smaller than the distance from the end face where the round hole is located to the cavity, and the axis of the round hole is collinear with the axis of the end cap.

Optionally, an annular protrusion is arranged on an outer cylindrical surface of the end cap.

Optionally, the cross section of the annular protrusion is wedge-shaped, and the wedge-shaped tip is away from the round hole.

The utility model also provides a keep somewhere needle, include: three-way drain seat, positive pressure valve, extension pipe, pipe seat, one-hand clamp, keep apart stopper, pjncture needle, hold needle handle, catheter needle and above the end cap, pipe seat one end is connected the catheter needle, the pjncture needle passes the setting and is in the pipe seat keep apart the stopper setting in the catheter needle, the pjncture needle is kept away from catheter needle one end is provided with hold the needle handle, three-way drain seat with the pipe seat passes through the extension union coupling, be provided with on the extension pipe the one-hand clamp, positive pressure valve is connected to three-way drain seat one end, and one end is connected the end cap.

Optionally, a circular hole is formed in one end of the end cap, the circular hole deviates from the extension pipe, the end cap is a cylinder, an annular protrusion with a wedge-shaped cross section is arranged on the outer cylindrical surface of the end cap, the wedge-shaped tip deviates from the circular hole, and a groove matched with the annular protrusion is formed in one end, where the tee joint liquid guide seat is installed, of the end cap.

The utility model provides an keep somewhere end cap of needle and keep somewhere needle, the inside vacuole formation of end cap, two relative terminal surfaces of end cap with two sections parts between the cavity dissect the inside crossing section that forms of end cap. The indwelling needle includes the end cap. The utility model provides an end cap is for can puncturing the end cap, extracts when the blood taking needle during the blood sampling, hole or gap that the end cap can seal the blood taking needle completely and extract the back and leave, and blood can't flow in the cavity is when disinfecting to the end cap, because hole or gap that the end cap can seal the blood taking needle completely and extract the back and leave, disinfection liquid or other impurity also can't get into from the outside the cavity has eliminated disinfection safety risk.

Drawings

Fig. 1 is a schematic view of an end cap according to an embodiment of the present invention;

fig. 2 is a schematic view of the installation position of the end cap according to an embodiment of the present invention;

fig. 3 is a schematic view of an indwelling needle according to an embodiment of the present invention.

Wherein: 10-end cap, 101-annular bulge, 102-inner cavity, 103-round hole, 104-cutting plane, 105-first end face, 106-second end face, 20-three-way liquid guide seat, 21-positive pressure valve, 30-extension tube, 40-single-hand clamp, 50-catheter needle, 60-catheter seat, 70-isolating plug, 80-puncture needle and 90-needle holding handle.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

The utility model provides an end cap of remaining needle, the end cap can puncture the end cap for adopting the preparation of medical elasticity macromolecular material, and the material can select silicon rubber etc.. Fig. 1 is a schematic diagram of an end cap according to an embodiment of the present invention, as shown in fig. 1, a cavity 102 is formed inside the end cap 10, and two sections between two opposite end surfaces (i.e., a first end surface 105 and a second end surface 106) of the end cap 10 and the cavity 102 are partially cut, so that an intersecting cutting surface 104 is formed inside the end cap 10. Keep somewhere needle adoption the utility model provides an embodiment the end cap 10 that provides, through inside and outside the cavity is isolated, the blood taking needle inserts along cutting plane 104 during the blood sampling, can not produce the piece, extracts when the blood taking needle, hole or gap that leaves after the end cap 10 can totally enclosed blood taking needle extracts, and blood can't flow in cavity 102 is when disinfecting to end cap 10, because hole or gap that leaves after the end cap 10 can totally enclosed blood taking needle extracts, and disinfection liquid or other impurity also can't get into from second terminal surface 106 one end cavity 102 has eliminated disinfection safety risk.

Specifically, as shown in fig. 1, the end cap 10 is a cylinder, the cavity 102 is also a cylinder, and the axis of the cavity 102 is collinear with the axis of the end cap 10. With such an arrangement, when the blood collection needle is inserted, the inner wall of the cavity 102 is not touched, so that the puncture resistance of the blood collection needle can be reduced, and the blood collection needle is prevented from being blocked.

As shown in FIG. 1, the cutting plane 104 is a cross-sectional plane or a Y-shaped cross-sectional plane. The diameter of the cylinder circumscribed by the cutting plane is smaller than that of the cavity. With such an arrangement, the structural strength of the end cap 10 can be ensured, and the end cap 10 is prevented from being damaged.

Further, as shown in fig. 1, a circular hole 103 is formed in the first end surface 105 of the end cap 10, the depth of the circular hole 103 is smaller than the distance from the first end surface 105 to the cavity 102, and the axis of the circular hole 103 is collinear with the axis of the end cap 10. When the lancet is inserted into the end cap 10 for blood collection, the lancet is freely inserted and easily deflected, and the circular hole 103 provided in the first end surface 105 serves as a guide hole for the lancet, thereby preventing the lancet from being inclined.

As shown in fig. 1, the end cap 10 is provided with an annular protrusion 101 on an outer cylindrical surface. The cross section of the annular protrusion 101 in this preferred embodiment is wedge-shaped, and the tip of the wedge-shape is away from the circular hole 103. When the end cap 10 is mounted on the three-way drainage seat of the indwelling needle, the annular protrusion 101 prevents the three-way drainage seat from sliding out.

The utility model discloses an embodiment still provides an indwelling needle, and fig. 2 is the utility model discloses an embodiment provides an end cap mounted position schematic diagram, and fig. 3 is the utility model discloses an embodiment provides an indwelling needle schematic diagram, as shown in fig. 2 and fig. 3, indwelling needle includes: the three-way catheter comprises a three-way catheter seat 20, a positive pressure valve 21, an extension tube 30, a catheter seat 60, a single-hand clamp 40, an isolation plug 70, a puncture needle 80, a needle holding handle 90, a catheter needle 50 and the end cap 10, wherein one end of the catheter seat 60 is connected with the catheter needle 50, the puncture needle 80 is arranged in the catheter needle 50 through the isolation plug 70 arranged in the catheter seat 60, the needle holding handle 90 is arranged at one end, far away from the catheter needle 50, of the puncture needle 80, the three-way catheter seat 20 is connected with the catheter seat 60 through the extension tube 30, the single-hand clamp 40 is arranged on the extension tube 30, one end of the three-way catheter seat 20 is connected with the positive pressure valve 21, and the other end of the three-way catheter seat 20 is connected with the. The positive pressure valve 21 is connected with a transfusion tube for dropping liquid, electrocardiograph monitoring and the like, and the end cap 10 is used for sampling blood or inputting other medicines to a patient. As is readily understood by those skilled in the art, the indwelling needle may be used for venipuncture or arterial puncture.

As shown in fig. 2 and 3, a circular hole 103 is formed in one end of the end cap 10, the circular hole 103 deviates from the extension tube 30, the end cap 10 is a cylinder, an annular protrusion 101 with a wedge-shaped cross section is formed in an outer cylindrical surface of the end cap, the wedge-shaped tip deviates from the circular hole 103, a groove is formed in the inner side of a tube wall at one end of the end cap 10, the end cap 10 is pressed into a pipeline at one end of the end cap 10, the three-way liquid guiding seat 20 is installed in the pipeline at one end of the end cap 10, the annular protrusion 101 which is extruded and deformed is bounced to fit in the groove, a second end surface 106 of the end cap is outside, a first end surface 105 of the end cap can be provided with a.

To sum up, an embodiment of the utility model provides an end cap of remaining needle and remaining needle, the inside vacuole formation of end cap, two relative terminal surfaces of end cap with two sections parts between the cavity are dissected the inside crossing section that forms of end cap. The indwelling needle includes: three-way drain seat, positive pressure valve, extension pipe, pipe seat, one-hand clamp, isolation stopper, pjncture needle, needle holder, pipe needle and the end cap, pipe seat one end is connected the pipe needle, the pjncture needle passes the setting and is in the pipe seat the isolation stopper sets up in the pipe needle, the pjncture needle is kept away from pipe needle one end is provided with hold the needle handle, three-way drain seat with the pipe seat passes through the extension union coupling, be provided with on the extension pipe the one-hand clamp, positive pressure valve is connected to three-way drain seat one end, and one end is connected the end cap. The utility model provides an end cap is for can puncturing the end cap, extracts when the blood taking needle during the blood sampling, hole or gap that the end cap can seal the blood taking needle completely and extract the back and leave, and blood can't flow in the cavity is when disinfecting to the end cap, because hole or gap that the end cap can seal the blood taking needle completely and extract the back and leave, disinfection liquid or other impurity also can't get into from the outside the cavity has eliminated disinfection safety risk.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. An end cap of an indwelling needle, wherein a cavity is formed inside the end cap, two sections between two opposite end surfaces of the end cap and the cavity are partially cut, and intersecting cutting surfaces are formed inside the end cap.

2. The end cap of an indwelling needle according to claim 1, wherein the end cap is a cylinder and the cavity is a cylinder, the axis of the cavity being collinear with the end cap axis.

3. The end cap of an indwelling needle according to claim 2, wherein the cross-section is a cross-section or a Y-section.

4. The end cap of an indwelling needle according to claim 1, wherein the diameter of the section circumscribing the cylinder is less than the diameter of the cavity.

5. The end cap of an indwelling needle according to claim 2, wherein a circular hole is provided in one end face of the end cap, the depth of the circular hole is less than the distance from the end face to the cavity, and the axis of the circular hole is collinear with the axis of the end cap.

6. The indwelling needle end cap of claim 5, wherein the end cap has an annular protrusion on its outer cylindrical surface.

7. The end cap of an indwelling needle according to claim 6, wherein the annular protrusion is wedge-shaped in cross-section with the wedge-shaped tip of the annular protrusion facing away from the circular aperture.

8. An indwelling needle, comprising: the needle clamp comprises a three-way liquid guide seat, a positive pressure valve, an extension tube, a catheter seat, a single-hand clamp, an isolation plug, a puncture needle, a needle holding handle, a catheter needle and the end cap according to any one of claims 1 to 7, wherein one end of the catheter seat is connected with the catheter needle, the puncture needle is arranged in the catheter needle by penetrating through the isolation plug arranged in the catheter seat, the needle holding handle is arranged at one end of the puncture needle far away from the catheter needle, the three-way liquid guide seat is connected with the catheter seat through the extension tube, the single-hand clamp is arranged on the extension tube, one end of the three-way liquid guide seat is connected with the positive pressure valve, and the other end of the three-way liquid guide seat.

9. The indwelling needle according to claim 8, wherein a circular hole is provided at one end of the end cap, the circular hole is away from the extension tube, the end cap is a cylinder, an annular protrusion with a wedge-shaped cross section is provided on the outer cylindrical surface of the end cap, the wedge-shaped tip of the annular protrusion is away from the circular hole, and a groove which is engaged with the annular protrusion is provided inside one end of the three-way drainage seat which is mounted on the end cap.