Connector for connecting injector and test tube and injection system

Abstract

The utility model relates to the technical field of medical instruments, and discloses a connector for connecting an injector and a test tube and an injection system, the connector comprises a connecting sleeve, a connecting hose and a tail needle which are connected and communicated in sequence; wherein the end, away from the connecting hose, of the connecting sleeve can be arranged on an injection head of the injector in a sleeving mode, and the connecting sleeve is provided with a first handheld part capable of being held by a user; one end, far away from the connecting hose, of the tail needle can penetrate into the test tube and is communicated with the test tube, the tail needle is provided with a sheath, and the tail needle is provided with a second handheld part which can be held by a user; and when the connecting sleeve is sleeved on the injection head of the injector and the tail needle penetrates into the test tube, the injector, the connector and the test tube are communicated in sequence. The connector has the advantages that in the using process of the connector, medical staff can be prevented from being pricked by mistake, occupational exposure is avoided, sterile operation can be achieved, and puncture infection of a patient is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a connector and an injection system for connecting a syringe and a test tube. Background Art

[0002] Internal medicine punctures mainly include bone marrow puncture, thoracic puncture, lumbar puncture and abdominal puncture, collectively referred to as the four major punctures. Taking bone marrow puncture as an example, after the operator successfully punctures, it is necessary to take part of the patient's bone marrow fluid for testing to clarify the patient's bone marrow disease. During the operation, the operator needs to connect the syringe containing the patient's bone marrow fluid to the needle, and then insert the needle into the test tube held by the assistant to transfer the patient's bone marrow fluid into the test tube. However, there are two key problems in this process:

[0003] First, when the operator inserts the needle of the syringe containing bone marrow fluid into the test tube held by the assistant, due to the small diameter of the test tube or the interference of the surrounding environment, the needle is likely to accidentally injure the assistant's hand, causing occupational exposure to the assistant. Second, bone marrow puncture is a sterile invasive operation. On the one hand, the process is likely to cause the operator's hand to touch the sterile test tube and other parts. On the other hand, after the injection is completed, the operator takes the syringe and needle back to the sterile table, which does not meet the sterility requirements. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to propose a connector for connecting a syringe and a test tube, which can prevent medical staff from being accidentally pierced and avoid occupational exposure, and can achieve aseptic operation and prevent patients from puncture infection, as well as an injection system.

[0005] The utility model solves the technical problem by adopting a technical solution, which is to provide a connector for connecting a syringe and a test tube, comprising:

[0006] The connecting sleeve, the connecting hose and the tail needle are connected and communicated in sequence; wherein,

[0007] One end of the connecting sleeve away from the connecting hose can be sleeved on the injection head of the syringe, and the connecting sleeve has a first hand-held portion that can be held by a user;

[0008] The end of the tail needle away from the connecting hose can be inserted into the test tube and communicated with the test tube, and the tail needle is provided with a sheath and a second hand-held portion for a user to hold;

[0009] When the connecting sleeve is sleeved on the injection head of the syringe and the tail needle penetrates into the test tube, the syringe, the connector and the test tube are connected in sequence.

[0010] Furthermore, the outer wall of the connecting sleeve is provided with a plurality of first convex strips protruding outward along its circumference, and the plurality of first convex strips form the first hand-holding part.

[0011] Furthermore, a first convex ring is provided at one end of the plurality of first convex strips away from the connecting hose, and the first convex ring connects the plurality of first convex strips.

[0012] Furthermore, the second hand-holding part on the tail needle includes a main body and a plurality of second convex strips arranged along the circumference of the main body and protruding outward, and one ends of the plurality of second convex strips are connected by a second convex ring.

[0013] Furthermore, the sheath is made of rubber material, and the tail needle is made of metal material.

[0014] Furthermore, the length of the connecting hose is greater than or equal to 10 centimeters.

[0015] The utility model solves the technical problem by adopting a technical solution, and also proposes an injection system, comprising:

[0016] Syringes, connectors and test tubes as mentioned above;

[0017] Among them, the connecting sleeve of the connector is arranged on the injection head of the syringe; the tail needle of the connector pierces the test tube; and the syringe, the connector and the test tube are connected in sequence, and the liquid in the syringe can be transported to the test tube through the connecting sleeve, the connecting hose and the tail needle of the connector in sequence.

[0018] Furthermore, the test tube is a vacuum test tube, and when the test tube is punctured, the target liquid can be sucked into the test tube by utilizing the negative pressure of the test tube.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] In the utility model, the connector includes a connecting sleeve, a connecting hose and a tail needle which are connected in sequence. The connecting sleeve can be connected and communicated with the injection head of the syringe, and the tail needle can be inserted into a test tube and communicated with the test tube. The syringe and the test tube can be connected through the connector, so that the liquid in the syringe can be conveniently transported to the test tube. In actual use, taking bone marrow puncture as an example, after the operator successfully punctures, part of the patient's bone marrow fluid is aspirated, and the connecting sleeve is put on the syringe containing the patient's bone marrow fluid. The assistant inserts the tail needle into the test tube, and the bone marrow fluid in the syringe can be transported to the test tube. In this process, the assistant can be effectively prevented from being accidentally pierced and occupational exposure can be avoided; and the operator does not need to touch contaminated objects such as test tubes, and can strictly meet the sterility requirements to prevent puncture infection to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the structure of a syringe sucking bone marrow fluid and injecting it into a test tube in the prior art;

[0022] Figure 2 It is a structural schematic diagram of the connector in the first embodiment;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure from another perspective;

[0024] Figure 4 It is a schematic diagram of the structure of the injection system in Example 2.

[0025] In the figure:

[0026] 1. Connector; 11. Connecting sleeve; 110. First hand-held part; 110A. First convex strip; 110B. First convex ring; 12. Connecting hose; 13. Tail needle; 130. Second hand-held part; 130A. Second convex strip; 130B. Second convex ring; 131. Sheath;

[0027] 2. Syringe; 20. Needle;

[0028] 3. Test tube. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Embodiment 1:

[0035] like Figure 1 As shown, the existing clinical method of injecting bone marrow fluid drawn by a syringe 2 into a test tube 3 is that the operator needs to connect the syringe 2 containing the patient's bone marrow fluid to the needle 20, and then insert the needle 20 into the test tube 3 held by the assistant. Since the test tube 3 has a small caliber, the operator is likely to accidentally pierce the assistant's hand with the needle 20 during this process, causing occupational exposure to the assistant. Therefore, in order to solve this problem, this embodiment proposes a connector 1 for connecting a syringe 2 and a test tube 3.

[0036] like Figure 2-Figure 3 As shown, a connector 1 for connecting a syringe 2 and a test tube 3 mainly comprises: a connecting sleeve 11, a connecting hose 12 and a tail needle 13 which are connected and communicated in sequence, wherein the length of the connecting hose 12 is greater than or equal to 10 cm so that the user has sufficient operating space.

[0037] The end of the connecting sleeve 11 away from the connecting hose 12 can be sleeved on the injection head of the syringe 2. The end of the connecting sleeve 11 away from the hose has a through hole, which matches the size of the injection head of the syringe 2, that is, its aperture is equal to the outer diameter of the injection head, so as to ensure that the connecting sleeve 11 can be fixedly connected and connected after being sleeved on the injection head. Among them, the connecting sleeve 11 has a first hand-held portion 110 that can be held by the user. Specifically, the outer wall of the connecting sleeve 11 is provided with a plurality of first convex strips 110A protruding outward along its circumference, and the plurality of first convex strips 110A form the first hand-held portion 110. The first hand-held portion 110 facilitates the operator to hold the connecting sleeve 11 and sleeve it on the injection head of the syringe 2. In addition, the end of the plurality of first convex strips 110A away from the connecting hose 12 is provided with a first convex ring 110B, and the first convex ring 110B connects the plurality of first convex strips 110A. The first convex ring 110B can effectively strengthen the structural strength of the plurality of first convex strips 110A. The entire connecting sleeve 11 can be integrally injection molded.

[0038] The end of the tail needle 13 away from the connecting hose 12 can be inserted into the test tube 3 and communicated with the test tube 3. A sheath 131 is provided on the tail needle 13. The sheath 131 is a rubber sheath 131, that is, the sheath 131 of this embodiment is made of rubber material, and the tail needle 13 is made of metal material. The diameter of the tail needle 13 is larger than the diameter of the ordinary needle 20, because the bone marrow fluid is relatively viscous, and the tail needle 13 with a large diameter can protect the assistant from being pierced. The connecting hose 12 and the tail needle 13 of this embodiment can use the existing blood collection needle, which is convenient to obtain materials and low in cost. The tail needle 13 is provided with a second hand-held portion 130 that can be held by the user. The second hand-held portion 130 can facilitate the assistant to perform hand-held operation to insert the tail needle 13 into the test tube 3. Specifically, the second hand-held portion 130 on the tail needle 13 includes a main body and a plurality of second convex strips 130A arranged along the circumference of the main body and protruding outward, and one end of the plurality of second convex strips 130A is connected by a second convex ring 130B. When the connecting sleeve 11 is sleeved on the injection head of the syringe 2 and the tail needle 13 is inserted into the test tube 3, the syringe 2, the connector 1 and the test tube 3 are connected in sequence.

[0039] In actual use, the connector 1 of this embodiment includes a connecting sleeve 11, a connecting hose 12 and a tail needle 13 connected in sequence. The connecting sleeve 11 can be connected and communicated with the injection head of the syringe 2, and the tail needle 13 can be inserted into the test tube 3 and communicated with the test tube 3, so that the syringe 2 and the test tube 3 can be connected through the connector 1, so that the liquid in the syringe 2 can be conveniently transported to the test tube 3. In actual use, taking bone marrow puncture as an example, after the operator successfully punctures, part of the patient's bone marrow fluid is sucked, and the connecting sleeve 11 is put on the syringe 2 containing the patient's bone marrow fluid. The assistant inserts the tail needle 13 into the test tube 3, and the bone marrow fluid in the syringe 2 can be transported to the test tube 3. In this process, the assistant can be effectively prevented from being punctured by mistake and occupational exposure can be avoided; and the operator does not need to touch the test tube 3 and other contaminated objects, and can strictly meet the sterility requirements to prevent puncture infection to the patient.

[0040] Embodiment 2:

[0041] like Figure 4 Combined with Figure 2 and Figure 3 As shown, an injection system of this embodiment mainly includes: a syringe 2, the connector 1 in the first embodiment and a test tube 3.

[0042] The connection sleeve 11 of the connector 1 is sleeved on the injection head of the syringe 2; the tail needle 13 of the connector 1 pierces the test tube 3; and the syringe 2, the connector 1 and the test tube 3 are connected in sequence, and the liquid in the syringe 2 can be transported to the test tube 3 through the connection sleeve 11, the connection hose 12 and the tail needle 13 of the connector 1 in sequence. Specifically, the test tube 3 of this embodiment is a vacuum test tube 3. When the test tube 3 is pierced, the negative pressure of the test tube 3 can be used to suck the bone marrow fluid in the syringe 2 into the test tube 3 for subsequent testing.

[0043] In view of the first and second embodiments, the connector 1 can prevent medical personnel from being accidentally pierced and avoid occupational exposure during use, and can achieve aseptic operation to prevent patients from puncture infection.

Claims

1. A connector for connecting a syringe and a test tube, characterized in that: include: The connecting sleeve, the connecting hose and the tail needle are connected and communicated in sequence; wherein, One end of the connecting sleeve away from the connecting hose can be sleeved on the injection head of the syringe, and the connecting sleeve has a first hand-held portion that can be held by a user; The end of the tail needle away from the connecting hose can be inserted into the test tube and communicated with the test tube, and the tail needle is provided with a sheath and a second hand-held portion for a user to hold; When the connecting sleeve is sleeved on the injection head of the syringe and the tail needle penetrates into the test tube, the syringe, the connector and the test tube are connected in sequence.

2. The connector for connecting a syringe and a test tube according to claim 1, characterized in that: The outer wall of the connecting sleeve is provided with a plurality of first convex strips protruding outward along its circumference, and the plurality of first convex strips form the first hand-holding part.

3. The connector for connecting a syringe and a test tube according to claim 2, characterized in that: A first convex ring is provided at one end of the plurality of first convex strips away from the connecting hose, and the first convex ring connects the plurality of first convex strips.

4. The connector for connecting a syringe and a test tube according to claim 1, characterized in that: The second hand-held part on the tail needle includes a main body and a plurality of second convex strips which are arranged along the circumference of the main body and protrude outwards, and one ends of the plurality of second convex strips are connected by a second convex ring.

5. The connector for connecting a syringe and a test tube according to claim 1, characterized in that: The sheath is made of rubber material, and the tail needle is made of metal material.

6. The connector for connecting a syringe and a test tube according to claim 1, characterized in that: The length of the connecting hose is greater than or equal to 10 cm.

7. An injection system, characterized in that: include: A syringe, a connector and a test tube as claimed in any one of claims 1 to 6; Among them, the connecting sleeve of the connector is arranged on the injection head of the syringe; the tail needle of the connector pierces the test tube; and the syringe, the connector and the test tube are connected in sequence, and the liquid in the syringe can be transported to the test tube through the connecting sleeve, the connecting hose and the tail needle of the connector in sequence.

8. The injection system according to claim 7, characterized in that The test tube is a vacuum test tube. When the test tube is pierced, the target liquid can be sucked into the test tube by utilizing the negative pressure of the test tube.

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