CN205831803U - A kind of indwelling blood sampling combination unit - Google Patents

Abstract

The utility model provides an indwelling blood collection combination device, which includes an indwelling device and a blood collection device; one indwelling needle device of the utility model can be matched with multiple blood collection devices, and multiple intermittent blood collections can be realized after one implantation to avoid repeated punctures; the utility model It can not only realize multiple intermittent blood collection, but also can be used as an intravenous channel to infuse medicinal liquid when necessary, saving a lot of time for nursing staff and reducing the pain caused by repeated punctures for patients.

Description

A combination device for indwelling blood collection

technical field

The utility model relates to the field of medical equipment, in particular to an indwelling blood collection combination device.

Background technique

Clinically, many critically ill patients need multiple blood tests to provide test indicators for clinicians and provide a basis for the next treatment plan. Inspection items such as the glucose tolerance test require the patient's blood to be drawn multiple times over several time periods for testing. Clinically at present, for the above-mentioned patients who need multiple blood collections, the blood is mainly drawn by repeated puncturing with a disposable blood collection needle. The second is to insert an IV catheter and draw blood from the catheter.

Disadvantages of existing technology:

1. Repeated puncture to extract venous blood greatly increases the pain of the patient and easily causes subcutaneous congestion, which is not conducive to the recovery of the patient. 2. Nurses collect blood multiple times for the same patient within a certain period of time, which increases the workload and also increases the difficulty of finding punctureable blood vessels. 3. After the venous blood is drawn, the blood collection channel cannot be used to infuse the medicinal solution, and a new puncture is required for infusion. 4 Due to the influence of negative pressure in the existing venous indwelling needle, the support force of the indwelling inner hose is not enough and easy to collapse, which makes it difficult to draw blood. The pumping into the test tube affects the test value.

The technical problem to be solved: stay in the blood vessel after puncture, so as to avoid the pain and complications caused by repeated puncture for patients. Save time for nursing staff and reduce the workload of medical staff. Reduce the possible impact of heparin solution on the test value. After blood collection, it can still be used as an intravenous channel for infusion of medicinal fluid.

Utility model content

In order to solve the problems existing in the background technology, the utility model provides an indwelling blood collection combination device.

The concrete technical scheme of the utility model is as follows:

An indwelling blood collection combination device, comprising an indwelling device and a blood collection device; the indwelling device includes a hollow fixed needle handle (3) and a puncture needle core (4); the bottom of the fixed needle handle (3) is open, and the fixed needle A hose (2) connected to the hollow of the fixed needle handle (3) is provided above the handle (3), and the bottom opening end of the fixed needle handle (3) is sealed by a rubber cover; the tip of the puncture needle core (4) passes through the The rubber cover is passed out along the hose (2); one side of the fixed needle handle (3) is provided with a liquid injection tube (5) connected to the hollow of the fixed needle handle (3), and the mouth of the liquid injection tube (5) is provided with a cover;

The blood collection device includes an outer puncture needle (6), and an inner sleeve (8) is sleeved inside the outer puncture needle (6); the outer walls of the outer puncture needle (6) and the inner sleeve (8) are respectively provided with The handle, the outer puncture needle (6) is provided with a longitudinal opening (7) for the handle of the inner cannula (8) to pass through; the tail end of the inner cannula (8) is connected with the blood collection tube (9), and the blood collection tube (9) A pipe clamp (10) is arranged on it;

The blood collection device is connected with the indwelling device through the insertion of the outer puncture needle (6) into the puncture needle core (4).

The structure of the fixed needle handle (3) is flat.

The hose (2) is covered with a protective sleeve (1).

The inner diameter of the outer puncture needle (6) is consistent with the outer diameter of the inner sleeve (8); the maximum outer diameter of the inner sleeve (8) is consistent with the inner diameter of the hose (2).

The inner sleeve (8) is made of metal or medical hard plastic, and its top is arc-shaped.

The length of the inner sleeve (8) is less than the length of the indwelling device.

The utility model is mainly composed of an indwelling device and a blood collection device, and one indwelling needle device can be matched with a plurality of blood collection devices.

The structure of the fixed needle handle (3) is flat and hollow, the bottom is a rubber structure that can pass through the needle core (4), the small opening on the left is a suction tube, and the upper part is a flexible tube (2) that can be implanted into a blood vessel. A puncture needle core (4) passes through the hose (2), and the outside is protected by a protective sleeve (1). Outer puncture needle (6) is arranged among Fig. 2, and there is longitudinal opening (7) on one side of outer puncture needle (6), and the width of longitudinal opening (7) is the handle that can pass on the inner casing (8), and outer puncture needle (6) ) has a handle on one side, the inner diameter of the outer puncture needle (6) is the maximum outer diameter that can pass through the inner cannula (8), and the largest outer diameter of the inner cannula (8) is the largest inner diameter that can pass through the hose (2) in Figure 1 . The inner casing (8) is made of metal, plastic and other materials with high supporting force, and its top is arc-shaped. The length of the inner sleeve (8) is such that its front end does not exceed the front end of the hose (2) after being implanted from the rubber structure of the fixed needle handle (3) in Figure 1. The lower end of the inner sleeve (8) is connected to the blood collection tube (9), and there is a movable tube clamp (10) in the blood collection tube (9).

Beneficial technical effects of the utility model:

1. One indwelling needle device of the utility model can be equipped with multiple blood collection devices, and multiple intermittent blood collection can be realized after one implantation to avoid repeated punctures;

2. The utility model can realize multiple intermittent blood collection, and can be used as a venous channel to infuse medicinal liquid when necessary, saving a lot of time for nursing staff and reducing the pain caused by repeated punctures for patients;

3. When the utility model inner sleeve (8) enters the fixed needle handle (3) and reaches the top of the hose (2), the tube clip (10) clamps the entire blood collection channel, and the saline or heparin sealing solution inside the indwelling needle will not A large number of blood samples enter the blood collection channel to make the test value of the blood samples drawn more accurate;

4. The inner sleeve (8) is made of metal, plastic and other materials with good supporting force, which ensures that the entire passage will not collapse when the test tube is sucked by negative pressure, and it is easy to collect blood. The top of the inner sleeve (8) has an arc-shaped structure, A possible puncture of the hose (2) during entry is avoided.

Description of drawings

Fig. 1 is the structural representation of indwelling device of the present utility model;

Fig. 2 is a schematic structural diagram of the blood collection device of the present invention;

Among them: protective sleeve-1, hose-2, fixed needle handle-3, puncture needle core-4, injection tube-5, outer puncture needle-6, longitudinal opening-7, inner sleeve-8, blood collection tube -9, pipe clamp -10.

detailed description

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

An indwelling blood collection combination device, comprising an indwelling device and a blood collection device; the indwelling device includes a hollow fixed needle handle (3) and a puncture needle core (4); the bottom of the fixed needle handle (3) is open, and the fixed needle A hose (2) connected to the hollow of the fixed needle handle (3) is provided above the handle (3), and the bottom opening end of the fixed needle handle (3) is sealed by a rubber cover; the tip of the puncture needle core (4) passes through the The rubber cover is passed out along the hose (2); one side of the fixed needle handle (3) is provided with a liquid injection tube (5) connected to the hollow of the fixed needle handle (3), and the mouth of the liquid injection tube (5) is provided with a cover;

The blood collection device includes an outer puncture needle (6), and an inner sleeve (8) is sleeved inside the outer puncture needle (6); the outer walls of the outer puncture needle (6) and the inner sleeve (8) are respectively provided with The handle, the outer puncture needle (6) is provided with a longitudinal opening (7) for the handle of the inner cannula (8) to pass through; the tail end of the inner cannula (8) is connected with the blood collection tube (9), and the blood collection tube (9) A pipe clamp (10) is arranged on it;

The blood collection device is connected with the indwelling device through the insertion of the outer puncture needle (6) into the puncture needle core (4).

The structure of the fixed needle handle (3) is flat.

The hose (2) is covered with a protective sleeve (1).

The inner diameter of the outer puncture needle (6) is consistent with the outer diameter of the inner sleeve (8); the maximum outer diameter of the inner sleeve (8) is consistent with the inner diameter of the hose (2).

The inner sleeve (8) is made of metal or medical hard plastic, and its top is arc-shaped.

The length of the inner sleeve (8) is less than the length of the indwelling device.

When using for the first time, use a syringe to extract saline and inject saline from the injection tube to exhaust the air in the indwelling needle as shown in Figure 1. Select the patient's blood vessel, and push out the puncture needle core after implantation according to the routine operation of indwelling needle implantation. fixed on the skin. Move the clamp to the end of the blood collection tube and lock the blood collection tube tightly. After conventional disinfection fixes the tail of the needle handle, put one finger against the bottom of the handle of the inner cannula, and the other finger against the upper part of the handle of the outer puncture needle, and penetrate into the inner part of the handle from the bottom of the fixed needle handle, realizing the delivery of the inner cannula by the outer puncture needle. into the fixed needle handle. Then pinch the handle of the inner sleeve and rotate to make the handle enter the longitudinal opening, and the outer puncture needle exits the inner sleeve and falls onto the blood collection tube. Push the inner sleeve further forward into the hose so that the tip is nearly flush with the hose. Insert the needle at the tail of the blood collection tube into the test tube with negative pressure, open the card slot (10), and the blood flows out from the inner sleeve (8) and flows into the test tube through the blood collection tube. After blood collection, the clip is stuck, the test tube is separated from the needle, the inner sleeve is pulled out and the entire blood collection kit is discarded. Draw out the prepared heparin tube lock solution from the syringe and seal the tube from the nozzle of the injection tube for the next use.

Claims (6)

1. An indwelling blood collection combination device, characterized in that: it includes an indwelling device and a blood collection device; the indwelling device includes a hollow fixed needle handle (3) and a puncture needle core (4); the bottom of the fixed needle handle (3) Opening, the fixed needle handle (3) is provided with a hose (2) connected to the hollow of the fixed needle handle (3), and the bottom opening end of the fixed needle handle (3) is sealed by a rubber cover; the puncture needle core ( 4) The tip of the tip passes through the rubber cover and passes out along the hose (2); one side of the fixed needle handle (3) is provided with a liquid injection tube (5) that communicates with the fixed needle handle (3) hollow, and the liquid injection tube (5) There is a cover at the mouth of the nozzle; The blood collection device includes an outer puncture needle (6), and an inner sleeve (8) is sleeved inside the outer puncture needle (6); the outer walls of the outer puncture needle (6) and the inner sleeve (8) are respectively provided with The handle, the outer puncture needle (6) is provided with a longitudinal opening (7) for the handle of the inner cannula (8) to pass through; the tail end of the inner cannula (8) is connected with the blood collection tube (9), and the blood collection tube (9) A pipe clamp (10) is arranged on it; The blood collection device is connected with the indwelling device through the insertion of the outer puncture needle (6) into the puncture needle core (4). 2. The combined indwelling blood collection device according to claim 1, characterized in that: the structure of the fixed needle handle (3) is flat. 3. The combined indwelling blood collection device according to claim 1, characterized in that: the flexible tube (2) is covered with a protective sleeve (1). 4. The combined indwelling blood collection device according to claim 1, characterized in that: the inner diameter of the outer puncture needle (6) is consistent with the outer diameter of the inner cannula (8); the largest outer diameter of the inner cannula (8) The diameter corresponds to the inner diameter of the hose (2). 5. The combined indwelling blood collection device according to claim 1, characterized in that: the inner sleeve (8) is made of metal or medical hard plastic, and its top is arc-shaped. 6. The combined indwelling blood collection device according to claim 1, characterized in that: the The length of the inner sleeve (8) is less than the length of the indwelling device.