CN219557309U - Venipuncture assistor - Google Patents

Abstract

The utility model discloses a venipuncture auxiliary device, which relates to the field of puncture tools. The venipuncture auxiliary device aims to solve the technical problem that the handle structure of a puncture needle is small and difficult to grasp. The venipuncture auxiliary device includes a venipuncture needle, The puncture needle handle is fixedly connected to the outer side of the bottom end of the venipuncture needle, and a triangular auxiliary hand-held piece is arranged on the front side of the puncture needle handle. The lower end of the venipuncture needle is fixedly connected with a catheter, and the other end of the catheter is fixedly connected with a blood collection needle. The front end of the puncture needle handle is equipped with a base, the auxiliary hand-held piece is arranged on the front side of the base, the outer side of the catheter is provided with a movable sheath, and the outer side of the movable sheath is wrapped with medical tape. The enlarged structure of the assembled connection assists the hand-held piece, which is convenient for medical staff with thicker fingers to grasp and pinch the venipuncture needle and stably apply the puncture force. The structure is simple to assemble and easy to disassemble.

Description

A venipuncture aid

technical field

The utility model belongs to the field of puncture tools, in particular to a venipuncture assistant.

Background technique

At present, most clinical blood collections use venous blood collection needles and vacuum blood collection tubes together. Once the venous blood collection needle is punctured, multiple tubes can be collected for testing different blood samples, which avoids the disadvantages of repeatedly puncturing the patient when using a syringe for blood collection, and reduces the patient's burden. pain, which improves the efficiency of blood collection; among them, the venous blood collection needle is the bridge between the human vein and the vacuum blood collection tube; the principle of the vacuum blood collection tube is to pre-pump the blood collection tube with a cranium into different vacuum degrees, and use its negative pressure to automatically collect quantitatively Venous blood sample; during operation, one end of the venous blood collection needle is pierced into the human vein by the venipuncture needle, and the other end is inserted into the vacuum blood collection tube by the blood collection tube puncture needle. Under the action of the negative pressure of the vacuum blood collection tube, the human venous blood flows into the vacuum blood collection tube , as can be seen from the existing puncture needle structure, it has a thin sheet-shaped puncture needle handle for the fingers of medical staff to hold, and this needle handle provides a force point for the puncture action. , transportation and sales, the cross-sectional area is relatively small, if the fingers of the medical staff are relatively thick, it is very difficult to pinch, and it is not easy to apply puncture force, it is easy to shake and twist the direction of force during the puncture process, making the needle bend in the patient's skin Or the case where the puncture needle falls.

The existing notification number is the Chinese utility model patent of CN218247225U, which discloses a disposable venous blood collection fixing bracket, including a fixing device and a blood sampling device, the fixing device includes a fixing belt and a chute, the fixing belt is provided with a gap, and the chute is provided with The card slot, the chute is connected with a base, the base is connected with the fixing belt, the blood collection device includes a blood collection needle, a catheter and a test tube puncture needle, the catheter includes a first flexible tube, a corrugated tube and a second flexible tube, the blood collection needle and the second flexible tube A flexible tube communicates, the free end of the first flexible tube communicates with the corrugated tube, the free end of the corrugated tube communicates with the second flexible tube, the free end of the second flexible tube communicates with the connecting seat, the connecting seat communicates with the test tube puncture needle, and connects The seat is provided with a push piece; the utility model solves the problem of poor fixation of the blood collection needle and unsmooth venipuncture caused by uncontrolled needle angle in the prior art, and is suitable for collecting blood from patients in modern medical procedures.

Therefore, in view of the small structure of the handle part of the traditional venipuncture needle mentioned above, and the situation that some medical staff with thick fingers are inconvenient to grasp and pinch and apply force stably, a puncture needle auxiliary device is developed, which utilizes the auxiliary device assembled on the handle of the traditional venipuncture needle. The mechanism is convenient for medical staff with thicker fingers to grasp and pinch, which is conducive to stabilizing the puncture direction and is not easy to fall.

Utility model content

(1) Technical problems to be solved

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a venipuncture assistant, which aims to solve the technical problem that the current puncture needle handle has a small structure and is not easy to grasp and pinch.

(2) Technical solution

In order to solve the above technical problems, the utility model provides such a venipuncture assistant, which includes a venipuncture needle, a puncture needle handle fixedly connected to the outside of the bottom end of the venipuncture needle, The front side of the needle handle is provided with a triangular auxiliary hand-held piece, the lower end of the venipuncture needle is fixedly connected with a catheter, the other end of the catheter is fixedly connected with a blood collection needle, the front end of the handle of the puncture needle is equipped with a base, and the The auxiliary hand-held piece is arranged on the front side of the base, and a movable sheath is arranged on the outside of the catheter, and a medical adhesive tape is wound on the outside of the movable sheath.

When using a venipuncture aid according to the technical solution, the user aligns the wire head with the wire hole and screws it in, so that the base and the auxiliary hand-held piece are connected as a whole, and then the telescopic rod is pressed into the telescopic hole and the plug is pushed into the socket. In the hole, when the telescopic hole exposes the socket, the elastic part resets and the telescopic rod is pushed out against the other end of the puncture needle handle. At this time, the base and the puncture needle handle are fixed, and then the end of the medical tape is torn off and removed The sheath is bypassed, and then hold the auxiliary hand-held piece to puncture the vein of the corresponding part of the patient with the venipuncture needle, then insert the blood collection needle into the vacuum tube, introduce the blood of the vein into the vacuum tube, and tear off the film of the adhesive layer on the medical tape , to adhere the adhesive tape to the catheter and the patient's skin.

Further, two groups of jacks are horizontally opened on the inner side of the handle of the puncture needle, and the front end of the base is fixedly connected with a plug adapted to the jack, and the plug is arranged inside the jack, different types of puncture The jacks on the needle handle have the same size, the production size of the base and the auxiliary hand-held piece are the same, and are suitable for puncture needle handles of different specifications.

Further, the upper end of the plug is provided with a telescopic hole extending longitudinally into the inside of the plug, and a telescopic rod is arranged inside the telescopic hole, and the top end of the telescopic rod is arranged on the rear side of the puncture needle handle, and the base is on the side of the puncture needle handle. On one side, the telescopic rod is on the other side of the puncture needle handle, and the two form a limit locking structure with the puncture needle handle to prevent the base from being disengaged.

Further, anti-slip lines are provided on the outer side of the plug, and an elastic member is connected between the lower end of the telescopic rod and the inner side of the telescopic hole. Stretch out telescopic hole, elastic piece can use spring or have the rubber piece of good elasticity, silicone piece.

Further, the rear end of the auxiliary handheld piece is fixedly connected with a pressing piece, the rear end of the pressing piece is fixedly connected with a wire head, the front end of the base is provided with a wire hole, and the wire head is screwed to the wire On the inside of the hole, the auxiliary hand-held piece is connected with the wire hole through the wire head to form a whole with the base, which is easy to disassemble. In actual use, the medical staff only need to install the two once a day, disassemble and store them after work, and install them again the next day. up and use.

Further, the inner side of the movable sheath is provided with an anti-slip washer, and the anti-slip washer is closely attached to the outer wall of the catheter. Made of cotton material, the inner wall is rough, and it is well wrapped with the outer wall of the catheter, so it is not easy to slide freely.

Further, the left and right ends of the anti-skid washer are fixedly connected with limit pieces, the limit pieces are arranged on the left and right sides of the movable sheath, and the anti-skid gasket is buckled on both sides of the movable sheath through the limit pieces to prevent the anti-skid gasket from Disengages from active sheath.

(3) Beneficial effect

Compared with the prior art, the utility model has the beneficial effect that: a venipuncture aid of the utility model adopts an enlarged structure auxiliary hand-held piece assembled with the handle of the venipuncture needle, which is convenient for medical staff with relatively thick fingers to grasp. Pinch the venipuncture needle and stably apply the puncture force, the structure is simple to assemble and easy to disassemble; the active sheath on the catheter has its own medical tape, which can be torn off immediately before puncture and blood collection, and the appropriate part is removed after puncture. The catheter and the movable sheath are adhered and fixed on the patient's skin, which is convenient to use.

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of a specific embodiment of a venipuncture aid of the present invention;

Fig. 2 is a schematic diagram of the installation structure of the venipuncture needle and the base of a specific embodiment of the venipuncture auxiliary device of the present invention;

Fig. 3 is a schematic diagram of the installation structure of the base and the auxiliary hand-held piece of a specific embodiment of the venipuncture aid of the present invention;

Fig. 4 is a schematic diagram of the installation structure of the movable sheath and the anti-slip washer of a specific embodiment of the venipuncture assistant of the present invention.

The marks in the accompanying drawings are: 1. Venipuncture needle; 2. Catheter; 3. Blood collection needle; 4. Puncture needle handle; 5. Base; 6. Auxiliary handheld piece; 7. Movable sheath; 8. Medical Adhesive tape; 9, socket; 10, plug; 11, telescopic hole; 12, telescopic rod; 13, anti-slip pattern; 14, elastic piece; 15, pressing piece; 16, wire head; 17, wire hole; 18, Anti-skid washer; 19, through groove; 20, limit piece.

Detailed ways

This specific embodiment is used for a venipuncture auxiliary device, the schematic diagram of its assembly structure is shown in Figure 1, the schematic diagram of the installation structure of the venipuncture needle 1 and the base 5 is shown in Figure 2, and the installation structure of the venipuncture needle 1 and the base 5 is shown in Figure 2. The schematic diagram of the structure is shown in Figure 3, and the schematic diagram of the installation structure of the movable sheath 7 and the anti-slip washer 18 is shown in Figure 4. The needle handle 4 is provided with a triangular auxiliary hand-held piece 6 on the front side of the puncture needle handle 4, the lower end of the venipuncture needle 1 is fixedly connected with a catheter 2, and the other end of the catheter 2 is fixedly connected with a blood collection needle 3. The front end of the puncture needle handle 4 is equipped with a base 5, the auxiliary hand-held piece 6 is arranged on the front side of the base 5, and the outer side of the catheter 2 is provided with a movable sheath 7, and the movable sheath 7. Medical adhesive tape 8 is wound on the outside.

For this specific embodiment, the medical adhesive tape 8 is in the state of being wound on the movable sheath 7 before actual use, and there are two separate medical adhesive tapes 8, the outermost ends of the two adhesive tapes are adhesively connected, and the outermost ends of the adhesive tapes are attached to each other when in use. Tear off the sticky place at the end, then bypass the medical adhesive tape 8 circle by circle, and then pull it to both sides to adhere to the catheter 2, the movable sheath 7 and the patient's skin.

Wherein, the inner side of the puncture needle handle 4 is horizontally opened with two groups of jacks 9, and the front end of the base 5 is fixedly connected with a plug 10 adapted to the jacks 9, and the plug 10 is arranged in the jacks 9. On the inner side, the upper end of the plug 10 is provided with a telescopic hole 11 extending longitudinally into the inside of the plug 10. A telescopic rod 12 is arranged inside the telescopic hole 11, and the top end of the telescopic rod 12 is arranged on the rear side of the puncture needle handle 4. The outer side of the plug 10 is provided with anti-slip lines 13, and an elastic member 14 is connected between the lower end of the telescopic rod 12 and the inner side of the telescopic hole 11. The size of the socket 9 provided on the handle 4 of the puncture needle of different types is the same, and the base 5 and the auxiliary hand-held piece 6 have the same production size, and are suitable for puncture needle handles 4 of different specifications. The base 5 is on one side of the puncture needle handle 4, and the telescopic rod 12 is on the other side of the puncture needle handle 4. The needle handle 4 forms a limit locking structure to prevent the base 5 from being disengaged. The elastic member 14 has elastic elongation performance, and has a longitudinal push force on the telescopic rod 12, so that it automatically stretches out of the telescopic hole 11. The elastic member 14 can use a spring or Rubber and silicone parts with good elasticity.

At the same time, the rear end of the auxiliary hand-held piece 6 is fixedly connected with a pressing piece 15, the rear end of the pressing piece 15 is fixedly connected with a wire head 16, and the front end of the base 5 is provided with a wire hole 17, and the wire head 16 Threaded on the inside of the thread hole 17, the auxiliary hand-held piece 6 is connected to the thread hole 17 through the thread head 16 to form an integral body with the base 5, which is convenient for disassembly. In actual use, the medical staff only need to install the two once a day. Take it apart and put it away, and install it again at work the next day.

In addition, the inner side of the movable sheath 7 is provided with an anti-slip washer 18, and the anti-slip washer 18 is closely attached to the outer wall of the catheter 2, and the outer wall of the movable sheath 7 and the outer wall of the anti-slip washer 18 are both provided with through grooves. 19. The left and right ends of the anti-skid washer 18 are fixedly connected with the limit pieces 20, the limit pieces 20 are arranged on the left and right sides of the movable sheath 7, the anti-slip washer 18 is made of foam material, the inner wall is rough, and it is compatible with the fluid guide The wrapping between the outer walls of the pipe 2 is good, and it is not easy to slide freely. The anti-slip gasket 18 is buckled on both sides of the movable sheath 7 by the stopper 20 to prevent the anti-slip gasket 18 from being disengaged from the movable sheath 7 .

When using a venipuncture aid according to the technical solution, the user screws the wire head 16 into the wire hole 17 so that the base 5 and the auxiliary hand-held piece 6 are connected as a whole, and then the telescopic rod 12 is pressed into the telescopic hole 11 And push the plug 10 into the socket 9, when the telescopic hole 11 exposes the socket 9, the elastic member 14 resets and pushes the telescopic rod 12 out against the other end of the puncture needle handle 4, at this time the base 5 and the puncture needle Fix the handle 4, then tear off the end of the medical tape 8 and bypass it from the movable sheath 7, then hold the auxiliary hand-held piece 6 to puncture the venipuncture needle 1 into the vein of the corresponding part of the patient, and then insert the blood collection needle 3 into the vacuum tube , the venous blood is introduced into the vacuum tube, and then the film of the adhesive layer on the medical tape 8 is torn off, and the adhesive tape is bound on the catheter 2 and the patient's skin.

Claims (7)

1. A venipuncture aid, which comprises a venipuncture needle, a puncture needle handle fixedly connected to the outside of the bottom end of the venipuncture needle, and a triangular auxiliary hand-held piece arranged on the front side of the puncture needle handle ; It is characterized in that the lower end of the venipuncture needle is fixedly connected with a catheter, the other end of the catheter is fixedly connected with a blood collection needle, the front end of the handle of the puncture needle is equipped with a base, and the auxiliary hand-held piece is arranged on the The front side of the base, the outer side of the catheter is provided with a movable sheath, and the outer side of the movable sheath is wrapped with medical adhesive tape. 2. A venipuncture assistant according to claim 1, characterized in that two sets of sockets are horizontally opened on the inner side of the handle of the puncture needle, and the front end of the base is fixedly connected with a socket adapted to the sockets. a plug, and the plug is arranged inside the socket. 3. A venipuncture assistant according to claim 2, characterized in that, the upper end of the plug is provided with a telescopic hole extending longitudinally into the inside of the plug, a telescopic rod is arranged inside the telescopic hole, and the top end of the telescopic rod It is arranged on the rear side of the handle of the puncture needle. 4 . The venipuncture assistant according to claim 3 , wherein an anti-slip pattern is provided on the outside of the plug, and an elastic member is connected between the lower end of the telescopic rod and the inner side of the telescopic hole. 5. A venipuncture assistant according to claim 1, characterized in that, the rear end of the auxiliary hand-held piece is fixedly connected with a pressing piece, and the rear end of the pressing piece is fixedly connected with a wire head, and the base A thread hole is provided at the front end of the seat, and the thread head is threadedly connected to the inner side of the thread hole. 6. A venipuncture aid according to claim 1, wherein an anti-slip washer is provided on the inner side of the movable sheath, and the anti-slip washer is closely attached to the outer wall of the catheter, and the movable sheath Both the outer wall and the outer wall of the anti-skid washer are provided with through grooves. 7 . The venipuncture assistant according to claim 6 , wherein the left and right ends of the anti-slip gasket are fixedly connected with limiting pieces, and the limiting pieces are arranged on the left and right sides of the movable sheath. 8 .