CN223601458U

CN223601458U - Hemostix suitable for needleless infusion connector

Info

Publication number: CN223601458U
Application number: CN202422588402.XU
Authority: CN
Inventors: 刘骥; 陈倩; 李喜亮; 范金; 刘李玉; 吴李花
Original assignee: Shenzhen Childrens Hospital
Current assignee: Shenzhen Childrens Hospital
Priority date: 2024-10-24
Filing date: 2024-10-24
Publication date: 2025-11-28
Anticipated expiration: 2034-10-24

Abstract

This application relates to the field of medical device technology and provides a blood collection device suitable for needleless infusion connectors, comprising: a delivery tube with a connector at one end, the connector having a connection hole and a first threaded fastening thread on its inner sidewall; a needle body including a needle seat and a needle tube connected in sequence, the needle seat having a first insertion post communicating with the needle tube, the first insertion post being used to insert into the connector, the outer sidewall of the first insertion post having a second threaded fastening thread, the first threaded fastening thread and the second threaded fastening thread being matched so that the first insertion post is screwed onto the connector; a vacuum blood collection device, detachably connected to the other end of the delivery tube; a sealing ring having a through hole in the connection hole, the first insertion post being matched and connected to the through hole, and a one-way guiding element being provided in the through hole, the one-way guiding element being directed unidirectionally toward the vacuum blood collection device. The connector and the needle body are sealed by the sealing ring and connected by a screw connection, which can effectively prevent leakage.

Description

Hemostix suitable for needleless infusion connector

Technical Field

The application relates to the technical field of medical equipment, in particular to a hemostix suitable for a needleless infusion connector.

Background

The blood taking needle is a widely used tool in the medical field and is mainly used for collecting blood samples. The common blood taking needle is generally composed of a needle head, a vacuum blood taking device and a conveying pipe, wherein the needle head is detachably connected to one end of the conveying pipe. When in use, the needle is inserted into one end of the conveying pipe, so that the needle is connected with the vacuum hemostix. The needle is then inserted into the patient's blood vessel and blood flows through the needle into the evacuated blood collection tube. The needle tip of the lancet is usually very sharp, and can rapidly and accurately pierce the skin and blood vessels, thereby reducing pain and discomfort to the patient.

The blood taking needle has simple structure, low production cost and simple operation, but requires a certain skill and experience to ensure accurate insertion into a blood vessel. However, the conventional lancet of today is too simple in structure due to cost restrictions. When in use, the joint of the needle head and the vacuum hemostix (between the conveying pipe and the needle head) is easy to loose and leak, so that the blood collection process is not smooth. Thereby affecting the blood sampling operation efficiency of medical staff.

Therefore, the above-mentioned existing technical drawbacks need to be changed.

Disclosure of utility model

In view of the above-mentioned shortcomings of the prior art, an object of the present application is to provide a hemostix suitable for a needleless infusion connector, which aims to prevent the connection between a delivery tube and a needle body from being more compact, and avoid leakage from affecting the efficiency of blood collection operation of medical staff.

The application solves the technical problems by adopting a technical scheme that a hemostix suitable for a needleless infusion connector comprises:

The conveying pipe is provided with a connector at one end, a connecting hole is formed in the connector, and a first bolting thread is arranged on the inner side wall of the connecting hole;

The needle body comprises a needle seat and a needle tube which are sequentially connected, a first plug-in column communicated with the needle tube is arranged on the needle seat, the first plug-in column is used for plugging a connector, a second bolting thread is arranged on the outer side wall of the first plug-in column, and the first bolting thread is matched with the second bolting thread so that the first plug-in column is screwed on the connector;

the vacuum hemostix is detachably connected to the other end of the conveying pipe;

Wherein, be provided with sealed rubber ring in the connecting hole, the through-hole has been seted up to sealed rubber ring, and first spliced pole and through-hole matching connection are provided with one-way conduction spare in the through-hole, and one-way conduction spare is turned on towards vacuum hemostix one-way.

In one possible implementation manner, steps are arranged at two ends of the connecting hole, and two ends of the sealing rubber ring are abutted against the two steps.

In one possible implementation, the end of the connection hole near the first bolting thread is provided with a disposable protection film, which is used for plugging the connection hole.

In one possible implementation, the needle tube is sleeved with a protective tube, and the protective tube is detachably connected to the needle tube.

In one possible implementation, one end of the vacuum hemostix connected with the conveying pipe is detachably connected with a container upper cover, a one-way valve is arranged on the container upper cover, and the one-way valve is conducted unidirectionally towards the inside of the vacuum hemostix.

In one possible implementation, the end of the conveying pipe connected with the vacuum hemostix is provided with a second plug-in column, the second plug-in column is used for plugging the one-way valve, and the end of the second plug-in column, which is far away from the conveying pipe, is an arc end.

In one possible implementation, the one-way valve is a silicone valve.

In one possible implementation, the first plug-in post is integrally formed with the needle hub, and the needle hub is provided with a needle wing.

In one possible implementation, the vacuum hemostix is a transparent material structure.

Compared with the prior art, the utility model provides the hemostix suitable for the needleless infusion connector, and the connector and the needle head body are sealed by the sealing rubber ring and are connected in a threaded manner, so that leakage can be effectively prevented.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall structure of a hemostix suitable for a needleless transfusion adapter according to the present embodiment;

FIG. 2 is an exploded view of the whole structure of a blood collector suitable for a needleless infusion connector according to the present embodiment;

Fig. 3 is a cross-sectional view of a connector suitable for use in a needleless infusion connector provided in this embodiment.

The device comprises a conveying pipe, a connector, a connecting hole, a 0111, a sealing rubber ring, a 0112, a through hole, a 0113, a step, a 112, a first bolting thread, a 12, a second bolting column, a 121, a protective sleeve, a 2, a needle body, a 21, a needle seat, a 211, a first bolting column, a 212, a second bolting thread, a 22, a needle tube, a 23, a protective tube, a 24, a needle wing, a 3, a vacuum hemostix, a 31, a container upper cover, a 311 and a one-way valve.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features described above in the different embodiments of the present utility model may be combined with each other as long as they do not collide with each other.

The utility model provides a hemostix suitable for a needleless infusion connector, as shown in figures 1 and 2, for collecting venous blood samples and arterial blood samples of patients. The blood sampling device mainly comprises a conveying pipe 1, a needle body 2 and a vacuum blood sampling device 3, wherein a connector 11 is arranged at one end of the conveying pipe 1, a connecting hole 111 is formed in the connector 11, first bolting threads 112 are formed in the inner side wall of the connecting hole 111, the needle body 2 comprises a needle seat 21 and a needle tube 22 which are sequentially connected, the needle tube 22 is used for being inserted into a blood vessel of a patient, and blood flows into the conveying pipe 1 through the needle tube 22 and then flows into the vacuum blood sampling tube. Because the vacuum blood collection tube is vacuum, blood can be sucked into the vacuum blood collection tube when the needle body 2, the conveying pipe 1 and the vacuum blood collector 3 are connected. The needle seat 21 is provided with a first inserting column 211 communicated with the needle tube 22, and the first inserting column 211 and the needle seat 21 are integrally formed. I.e. the first plug post 211 is of the same material as the hub 21. The first plug post 211 can be prevented from accidentally injuring a medical care worker. The first plug-in column 211 is used for plugging the connector 11, a second bolting thread 212 is arranged on the outer side wall of the first plug-in column 211, the first bolting thread 112 is matched with the second bolting thread 212, so that the first plug-in column 211 is screwed on the connector 11, the vacuum hemostix 3 is detachably connected to the other end of the conveying pipe 1, a sealing rubber ring 0111 is arranged in the connecting hole 111, a through hole 0112 is formed in the sealing rubber ring 0111, the first plug-in column 211 is connected with the through hole 0112 in a matched mode, a one-way conducting piece is arranged in the through hole 0112, and the one-way conducting piece conducts unidirectionally towards the vacuum hemostix 3.

It can be appreciated that the specific function of the unidirectional current conducting element in this embodiment is available to those skilled in the art according to the prior art, and the structure and working principle of the unidirectional current conducting element will not be described herein.

It should be noted that, a common blood taking needle is generally composed of a needle, a vacuum blood taking device 3 and a delivery tube 1, and the needle is detachably connected to one end of the delivery tube 1. The blood taking needle has simple structure, low production cost and simple operation, but requires a certain skill and experience to ensure accurate insertion into a blood vessel. However, the conventional lancet of today is too simple in structure due to cost restrictions. When in use, the joint of the needle head and the vacuum hemostix 3 (between the conveying pipe 1 and the needle head) is easy to loose and leak, so that the blood collection process is not smooth. Thereby affecting the blood sampling operation efficiency of medical staff.

The connector 11 and the needle body 2 are sealed by the sealing rubber ring 0111 and are connected in a threaded manner, so that leakage can be effectively prevented.

Further, as shown in fig. 2 and 3, steps 0113 are provided at both ends of the connection hole 111, and both ends of the sealing rubber ring 0111 are abutted against the two steps 0113. The step 0113 is used for abutting against the sealing rubber ring 0111 to prevent the sealing rubber ring 0111 from loosening and falling out. The sealing rubber ring 0111 is connected with the connecting hole 111 in a matching way so as to achieve a good sealing effect.

Further, a disposable protection film is disposed at one end of the connection hole 111 near the first bolting thread 112, and the disposable protection film is used for plugging the connection hole 111. When it is desired to use the delivery tube 1, the disposable protective film is required to be torn, and the needle body 2 can be attached to the delivery tube 1 in the attachment hole 111. Therefore, the disposable protective film can prevent external pollution sources from entering the inside of the conveying pipe 1, and can play a role in protecting the conveying pipe 1. And at the same time, the medical staff can distinguish whether the conveying pipe 1 is used or not. Avoiding the transfer tube 1 from being reused.

Further, as shown in fig. 1 and 2, a protective tube 23 is sleeved on the needle tube 22, and the protective tube 23 is detachably connected to the needle tube 22. The protective tube 23 is sleeved on the needle tube 22, so that the needle tube 22 can be prevented from injuring medical staff before use. While also avoiding contamination of needle cannula 22 with external contaminants. While also protecting the tip of needle cannula 22.

Further, as shown in fig. 1 and 2, one end of the vacuum hemostix 3 connected with the conveying pipe 1 is detachably connected with a container upper cover 31, a one-way valve 311 is arranged on the container upper cover 31, and the one-way valve 311 is conducted unidirectionally towards the inside of the vacuum hemostix 3. The one-way valve 311 can maintain the inside of the vacuum cleaner in a vacuum state. And can prevent the blood collected by the vacuum hemostix 3 from leaking out. When blood test is performed, the blood sample can be poured out by directly opening the container top cover 31.

Further, as shown in fig. 2, a second plug-in post 12 is disposed at one end of the conveying pipe 1 connected to the vacuum hemostix 3, the second plug-in post 12 is used for plugging a one-way valve 311, and one end of the second plug-in post 12 away from the conveying pipe 1 is an arc end. The second plug-in column 12 is matched with the diversion hole of the one-way valve 311, and the arc end head can avoid accidentally injuring medical staff.

Further, on the factory package, the second plug post 12 is detachably connected with a protection sleeve 121. The second plug post 12 is protected from external contamination or knocks by a protective sleeve 121. And at the same time, the second plug-in post 12 can be prevented from causing trauma to the medical staff.

Further, the one-way valve 311 is a silica gel valve. The silica gel has better elasticity, can realize better sealed effect, and the silica gel valve has better biocompatibility simultaneously.

Further, as shown in fig. 1 and 2, the first plug-in post 211 is integrally formed with the needle seat 21, and the needle seat 21 is provided with a needle wing 24. I.e. the first plug post 211 is of the same material as the hub 21. The first plug post 211 can be prevented from accidentally injuring a medical care worker.

Further, the vacuum hemostix 3 has a transparent material structure. The transparent vacuum hemostix 3 can facilitate the medical staff to observe the quantity of blood sample in the container.

In summary, the utility model provides a hemostix suitable for a needleless infusion connector, wherein the connector 11 and the needle body 2 are sealed by a sealing rubber ring 0111 and are connected in a threaded manner, so that leakage can be effectively prevented.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A hemostix adapted for needleless infusion connection comprising:

The needle head comprises a needle head body, wherein the needle head body comprises a needle seat and a needle tube which are sequentially connected, a first plug-in column communicated with the needle tube is arranged on the needle seat, the first plug-in column is used for being plugged into the connector, a second bolting thread is arranged on the outer side wall of the first plug-in column, and the first bolting thread is matched with the second bolting thread so that the first plug-in column is in threaded connection with the connector;

The connecting hole is internally provided with a sealing rubber ring, the sealing rubber ring is provided with a through hole, the first plug-in column is connected with the through hole in a matched mode, the through hole is internally provided with a one-way conducting piece, and the one-way conducting piece conducts unidirectionally towards the vacuum hemostix.

2. The hemostix for needleless infusion connector of claim 1, wherein the two ends of the connecting hole are provided with steps, and the two ends of the sealing rubber ring are abutted with the two steps.

3. A blood collector for a needleless infusion connector as claimed in claim 1, wherein the end of the connecting hole adjacent to the first bolting thread is provided with a disposable protective membrane for sealing the connecting hole.

4. The hemostix of claim 1, wherein the needle tube is sleeved with a protective tube, and the protective tube is detachably connected to the needle tube.

5. The hemostix of claim 1, wherein the end of the vacuum hemostix connected with the conveying pipe is detachably connected with a container upper cover, and a one-way valve is arranged on the container upper cover and is in one-way conduction towards the interior of the vacuum hemostix.

6. The hemostix of claim 5, wherein a second plug-in post is arranged at one end of the conveying pipe connected with the vacuum hemostix, the second plug-in post is used for plugging the one-way valve, and one end of the second plug-in post far away from the conveying pipe is an arc end.

7. The hemostix of claim 6 wherein the one-way valve is a silicone valve.

8. The hemostix of claim 1, wherein the first plug post is integrally formed with the hub, and the hub is provided with a wing.

9. The hemostix of claim 1, wherein the vacuum hemostix is of transparent material construction.