CN215023939U

CN215023939U - Negative pressure type remaining needle

Info

Publication number: CN215023939U
Application number: CN202021329025.3U
Authority: CN
Inventors: 吴宏涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-12-07
Anticipated expiration: 2030-07-08

Abstract

The utility model provides a needle is kept somewhere to negative pressure type, including keeping somewhere needle subassembly and transfusion system interface unit, keep somewhere the needle subassembly including keeping somewhere the needle sleeve pipe, keeping somewhere needle nook closing member and pipe seat, it sets up to keep somewhere the needle nook closing member inboard, keep somewhere needle sheathed tube one end with pipe seat intercommunication sets up, the other end of pipe seat passes through the drainage tube intercommunication transfusion system interface unit sets up, transfusion system interface unit is including pressing chamber and feed liquor joint, feed liquor joint intercommunication formula sets up the one end in pressing the chamber, the other end intercommunication in pressing the chamber the drainage tube sets up, the outside extension formula of lateral wall in pressing the chamber is provided with compressible cavity, the cover is equipped with the clamp that dams on the drainage tube. The utility model discloses, effectively improved the success rate of puncture, reduced patient's misery, convenient to popularize and use.

Description

Negative pressure type remaining needle

Technical Field

The utility model belongs to the technical field of medical instrument is with relevant, particularly, relate to a needle is kept somewhere to negative pressure type.

Background

The indwelling needle is also called as a trocar, the core components comprise a soft catheter which can be indwelling in the blood vessel and a stainless puncture guiding needle core, when in use, the catheter and the needle core are punctured into the blood vessel together, when the catheter enters the blood vessel completely, the needle core is withdrawn, and only the soft catheter is indwelling in the blood vessel, thereby carrying out the transfusion treatment; the device is divided into an open type and a closed type, and the open type and the closed type are also divided into a common type and a safe type; keep somewhere the use of needle can reduce the misery that the infant caused because of relapse venipuncture and the fear of making the needle, alleviate the irritated mood of the head of a family, be convenient for clinical medicine, it is urgent, critical patient's rescue is used medicine, alleviate nurse's work load, it is painful to reduce the infant, therefore keep somewhere the needle and in clinical wide application, but the needle is kept somewhere to current in the use, when the needle is kept somewhere to the liquid medicine input that will treat the input in needs, the drainage tube that needs one hand winding part of medical personnel forms the negative pressure chamber, the puncture is accomplished to another hand, whether in order to judge the puncture through the return blood successfully, puncture efficiency is lower, and the success rate is not high, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a needle is kept somewhere to new negative pressure type, and the technical problem that solve is the current lower problem of needle puncture efficiency and success rate of keeping somewhere.

In view of this, the utility model provides a needle is kept somewhere to new negative pressure type, including keeping somewhere needle subassembly and transfusion system interface module, keep somewhere the needle subassembly including keeping somewhere the needle sleeve pipe, keeping somewhere needle nook closing member and pipe seat, it sets up to keep somewhere the needle nook closing member inboard, keep somewhere the sheathed tube one end of needle with the one end intercommunication of pipe seat sets up, the other end of pipe seat passes through the drainage tube intercommunication transfusion system interface module sets up, transfusion system interface module is including pressing chamber and liquid connector, liquid connector intercommunication formula sets up the one end in pressing the chamber, the other end intercommunication in pressing the chamber the drainage tube sets up, the outside extension formula of lateral wall in pressing the chamber is provided with compressible cavity, the cover is equipped with the clamp that dams on the drainage tube.

In the technical scheme, the indwelling needle assembly comprises an indwelling needle sleeve, an indwelling needle core and a catheter seat, wherein the indwelling needle core is arranged in the indwelling needle sleeve, and the needle point of the indwelling needle core is kept to exceed the outer end of the indwelling needle sleeve, so that the puncture of the indwelling needle is conveniently completed, and the indwelling needle core is withdrawn after the indwelling needle sleeve completely enters the blood vessel; the catheter holder passes through the chamber of pressing of drainage tube intercommunication transfusion system interface subassembly, should press the chamber and can form the negative pressure chamber that the needle was kept somewhere in the intercommunication for medical personnel only press the chamber through pressing, can produce the negative pressure effect, whether with seeing back blood fast, confirm the puncture success with this, shortened the puncture time, improve the success rate and the puncture efficiency of puncture, convenient operation, convenient to use.

In the above technical solution, preferably, a one-way flap is disposed at a communication position of the liquid inlet joint and the pressing cavity.

In the above technical scheme, preferably, one-way lamella all includes sunken orientation the inside left indent formula lamella and the right indent formula lamella of liquid inlet joint, a left side indent formula lamella with the one end of right indent formula lamella contacts, a left side indent formula lamella with the other end difference symmetry formula of right indent formula lamella sets up on the lateral wall internal surface of liquid inlet joint.

The one-way valve that the feed liquor connects and the intercommunication department that presses the chamber sets up among this technical scheme for when medical personnel pressed the pressure chamber, the air can not flow back into inside the feed liquor connects.

In the above technical solution, preferably, the indwelling needle assembly further comprises a needle handle, and the needle handle is uniformly provided with anti-slip protrusions.

In the technical scheme, the anti-skid protrusions on the needle head handle are convenient for medical staff to hold, avoid hand skidding and are convenient to use.

In the above technical solution, preferably, the compressible chamber adopts a spring cylinder structure.

In this technical scheme, the structure of the cavity of spring case structure has the support nature, and is comparatively stable.

In the above technical solution, preferably, a detachable cap is provided at an inlet of the liquid inlet joint through a connection ring.

In the above technical solution, preferably, the indwelling needle core is made of steel.

In the technical scheme, the needle core of the remaining needle is made of steel, so that the service life is long.

In the above technical solution, preferably, the infusion apparatus interface assembly includes a pressing cavity and a plurality of liquid inlet connectors, and each liquid inlet connector is disposed at one end of the pressing cavity in a communicating manner.

In the above technical solution, preferably, a one-way flap is disposed at a communication position between each liquid inlet joint and the pressing cavity.

In the above technical solution, preferably, an identification portion for identifying the type of the liquid inlet connector is provided on an outer side wall of each liquid inlet connector.

In this technical scheme, the identification part that sets up on liquid inlet joint's the lateral wall, the medical personnel of being convenient for distinguish liquid inlet joint's kind, convenient to use fast.

Compared with the prior art, the utility model has the advantages of: the utility model provides a needle is kept somewhere to negative pressure type forms the negative pressure chamber through setting up compressible cavity on pressing the chamber for the initial condition who keeps somewhere the needle is negative pressure state, and then makes medical personnel handheld puncture more simple and convenient, has replaced the mode that original manual partial drainage tube that dams formed the negative pressure, has effectively improved the success rate of puncture, has reduced patient's misery, convenient to popularize and use.

Drawings

Fig. 1 is a schematic structural view showing a negative pressure type indwelling needle according to an embodiment of the present invention;

FIG. 2 is another schematic structural view of the negative pressure type indwelling needle according to the embodiment of FIG. 1;

fig. 3 is a schematic structural view showing a negative pressure type indwelling needle according to another embodiment of the present invention;

fig. 4 is another schematic structural view of the negative pressure type indwelling needle according to the embodiment of fig. 3.

The names corresponding to the reference numerals in the drawing are an indwelling needle cannula 101, an indwelling needle core 102, a catheter seat 103, a drainage tube 104, a pressing cavity 105, a liquid inlet connector 106, a cavity 107, a closure clip 108, a one-way valve 109, a needle handle 110, an anti-skid protrusion 111 and a marking part 112.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, or the position or the positional relationship which is conventionally understood by those skilled in the art, and is only for the convenience of describing the present invention and simplifying the description, but it is not to indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the specific meaning of the above terms in the present invention and the attached drawings in the embodiments can be understood in specific situations, and the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

The invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, a negative pressure type indwelling needle comprises an indwelling needle assembly and an infusion apparatus interface assembly, wherein the indwelling needle assembly comprises an indwelling needle cannula 101, an indwelling needle core 102 and a catheter seat 103, the indwelling needle core 102 is arranged inside the indwelling needle cannula 101, one end of the indwelling needle cannula 101 is communicated with one end of the catheter seat 103, the other end of the catheter seat 103 is communicated with the infusion apparatus interface assembly through a drainage tube 104, the infusion apparatus interface assembly comprises a pressing cavity 105 and a liquid inlet connector 106, the liquid inlet connector 106 is communicated with one end of the pressing cavity 105, the other end of the pressing cavity 105 is communicated with the drainage tube 104, a compressible cavity 107 is arranged in a manner that the side wall of the pressing cavity 105 extends outwards, and an intercepting clamp 108 is sleeved on the drainage tube 104.

The indwelling needle assembly comprises an indwelling needle sleeve 101, an indwelling needle core 102 and a catheter seat 103, the indwelling needle core 102 is arranged in the indwelling needle sleeve 101, the needle point of the indwelling needle core 102 is kept to exceed the outer end of the indwelling needle sleeve 101, the puncture of the indwelling needle is conveniently completed, and the indwelling needle core 102 is withdrawn after the indwelling needle sleeve 101 completely enters a blood vessel; catheter seat 103 passes through the chamber 105 of pressing of drainage tube 104 intercommunication transfusion system interface subassembly, should press chamber 105 can form the negative pressure chamber that the needle was kept somewhere in the intercommunication for medical personnel only press chamber 105 through pressing, can produce the negative pressure effect, whether or not with seeing back blood fast, confirm the puncture success with this, shortened the puncture time, improve the success rate and the puncture efficiency of puncture, convenient operation, convenient to use.

Furthermore, a one-way flap 109 is arranged at the communication position of the liquid inlet joint 106 and the pressing cavity 105, the one-way flap 109 comprises a left concave flap and a right concave flap, the concave directions of the left concave flap and the right concave flap face the inside of the liquid inlet joint 106, the left concave flap is in contact with one end of the right concave flap, the other ends of the left concave flap and the right concave flap are respectively symmetrically arranged on the inner surface of the side wall of the liquid inlet joint 106, the one-way flap 109 is arranged at the communication position of the liquid inlet joint 106 and the pressing cavity 105, so that when medical personnel press the pressing cavity 105, air cannot flow back into the inside of the liquid inlet joint 106, the indwelling needle assembly further comprises a needle handle 110, anti-sliding protrusions 111 are uniformly arranged on the needle handle 110, and the compressible cavity 107 adopts a spring barrel structure; the import department of liquid inlet joint 106 is provided with the detachable cap through the go-between, it adopts the steel preparation to keep somewhere needle nook closing member 102, transfusion system interface subassembly is including pressing chamber 105 and a plurality of liquid inlet joint 106, every liquid inlet joint 106 intercommunication formula sets up press the one end in chamber 105, every liquid inlet joint 106 with the intercommunication department of pressing chamber 105 all is provided with one-way lamella 109, every be provided with the identification portion 112 of distinguishing the joint kind on liquid inlet joint 106's the lateral wall.

The anti-skid bulge 111 on the needle handle 110 is convenient for medical staff to hold, avoids the hand from skidding and is convenient to use, and the cavity 107 of the spring cylinder structure has a supporting structure and is relatively stable; the needle core 102 of the remaining needle is made of steel, so that the service life is long; the marking part 112 arranged on the outer side wall of the liquid inlet joint 106 is convenient for medical staff to quickly distinguish the type of the liquid inlet joint 106, and is convenient to use.

Above combine the figure to describe in detail the technical scheme of the utility model, the technical scheme of the utility model provides a new compare with prior art, the utility model has the advantages of: the utility model provides a needle is kept somewhere to negative pressure type forms the negative pressure chamber through setting up compressible cavity on pressing the chamber for the initial condition who keeps somewhere the needle is negative pressure state, and then makes medical personnel handheld puncture more simple and convenient, has replaced the mode that original manual partial drainage tube that dams formed the negative pressure, has effectively improved the success rate of puncture, has reduced patient's misery, convenient to popularize and use.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a needle is kept somewhere to negative pressure type, includes and keeps somewhere needle subassembly and transfusion system interface unit, a serial communication port, it includes keeps somewhere the needle sleeve pipe, keeps somewhere needle nook closing member and pipe seat to keep somewhere the needle nook closing member setting and is in keep somewhere needle sleeve pipe inboard, the one end of keeping somewhere the needle sleeve pipe with the one end intercommunication of pipe seat sets up, the other end of pipe seat passes through the drainage tube intercommunication transfusion system interface unit sets up, transfusion system interface unit is including pressing chamber and liquid connector, liquid connector intercommunication formula sets up the one end in pressing the chamber, the other end intercommunication in pressing the chamber the drainage tube sets up, the outside extension formula in lateral wall in pressing the chamber is provided with compressible cavity, compressible cavity adopts the spring barrel construction, the cover is equipped with the clamp that dams on the drainage tube.

2. The negative pressure type indwelling needle according to claim 1, wherein a one-way flap is provided at the communication between the liquid inlet joint and the pressing cavity.

3. The negative pressure type indwelling needle according to claim 2, wherein the one-way flaps each include a left concave flap and a right concave flap recessed toward the inside of the liquid inlet joint, the left concave flap is in contact with one end of the right concave flap, and the other ends of the left concave flap and the right concave flap are respectively symmetrically disposed on the inner surface of the side wall of the liquid inlet joint.

4. The negative pressure type indwelling needle according to claim 1, wherein the indwelling needle assembly further comprises a needle handle, and the needle handle is uniformly provided with anti-slip protrusions.

5. The negative pressure type indwelling needle according to claim 1, wherein a detachable cap is provided at an inlet of the liquid inlet joint through a connection ring.

6. The negative pressure type indwelling needle according to claim 1, wherein the indwelling needle core is made of a steel material.

7. The negative pressure type indwelling needle according to claim 1, wherein the infusion set interface assembly comprises a pressing cavity and a plurality of liquid inlet connectors, and each liquid inlet connector is arranged at one end of the pressing cavity in a communicating manner.

8. The negative pressure type indwelling needle according to claim 7, wherein a one-way flap is provided at the communication position of each liquid inlet joint and the pressing cavity.

9. The negative pressure type indwelling needle according to claim 7, wherein a marker for identifying the type of the inlet connector is provided on an outer side wall of each inlet connector.