CN204542316U - A kind of Medical puncture instrument - Google Patents

Abstract

The utility model provides a medical puncture device, comprising a puncture needle (1), a puncture needle seat (3), a hand-held platform (4) and a liquid outlet tube (5), the puncture needle (1), the hand-held platform (4) respectively located on the opposite sides of the puncture needle base (3) and fixedly connected with the puncture needle base (3) respectively, the end of the puncture needle (1) is a semi-conical acupuncture head (12). The air inlet hole (13) is provided on the acupuncture head (12), and the air inlet hole (13) is connected with the air inlet channel (52) on the liquid outlet pipe (5). The liquid inlet hole (11) is connected with the liquid outlet channel (53) on the liquid outlet pipe (5). The utility model has a relatively sharp special-shaped tip and a large-area hand-held end, so as to facilitate hand-held and puncture operations, and is more labor-saving and smoother during puncture operations.

Description

A medical puncture device

technical field

The utility model relates to a disposable medical puncture device, in particular to a medical puncture device used in a disposable transfusion set.

Background technique

At present, there are various disadvantages in the medical puncture devices used in the field of blood collection and transfusion, which are mainly manifested in the following aspects: some puncture devices have small hand-held ends, which are difficult to hold during operation; It is difficult to puncture; some puncture devices are easy to fall off before or during use because the hose connection is not firm, which may lead to contamination of the puncture device itself or the collected products, thereby bringing users Quite a bother.

Utility model content

The technical problem to be solved by the utility model is: aiming at the problems existing in the prior art, a medical puncture device is provided, which is easy to hold and operate, and the puncture is more labor-saving and smooth during the puncture operation.

The technical problem to be solved by the utility model is achieved by the following technical solutions: a medical puncture device, including a puncture needle, a puncture needle seat, a hand-held platform and a liquid outlet tube, and the puncture needle and the hand-held platform are respectively located in the puncture needle seat The opposite sides of the puncture needle are respectively fixedly connected with the puncture needle seat. The end of the puncture needle is a semi-conical needle piercing head, and an air inlet is set on the needle piercing head. The air inlet and the outlet pipe The air inlet channel is connected, and the liquid inlet hole on the puncture needle is connected with the liquid outlet channel on the liquid outlet pipe.

Preferably, an air filter is also included, and the air filter is fixedly connected to the liquid outlet pipe and communicates with the air inlet channel on the liquid outlet pipe.

Preferably, the air inlet port of the air filter is connected with a switch device, and the switch device is a flat plate with a plug fixedly installed, one side end of which is pivotally connected with the air filter, when the switch device rotates to close with the air filter , the plug is in sealing connection with the air filter inlet.

Preferably, it also includes an anti-slip seat of the protective cap, and the two ends of the anti-slip seat of the protective cap are respectively fixedly connected with the puncture needle and the puncture needle seat.

Preferably, the anti-slip seat of the protective cap, the puncture needle and the puncture needle seat are integrally formed and connected.

Preferably, the hand-holding platform is formed by two flat plates located on opposite sides of the liquid outlet tube and respectively fixedly connected with the puncture needle holder.

Preferably, the hand-holding platform is in the shape of a trapezoid, and its relatively large end is fixedly connected with the puncture needle holder.

Preferably, the hand-holding platform and the puncture needle base are integrally formed and connected.

Preferably, the end of the liquid outlet pipe is provided with a hose connection part with a groove structure.

Preferably, the puncture needle seat is rectangular.

Compared with the prior art, the beneficial effect of the utility model is that: since the piercing head of the piercer is a semi-conical needle piercing head, the piercer has a relatively sharp special-shaped tip, which saves more labor and is more efficient during the piercing operation. Smooth; the hand-held platform is fixedly connected with the puncture needle base to form a large-area hand-held end, which is convenient for holding and puncturing; in addition, a hose connection with a groove structure is set at the end of the liquid outlet tube , and the connecting end of the hose can also be directly inserted into the groove and glued to the outlet pipe, so as to ensure a firmer and more reliable connection between the hose and the piercer.

Description of drawings

Fig. 1 is an axonometric view of a medical puncture device of the present invention.

Fig. 2 is a front view of a medical puncture device of the present invention.

Marking names of parts in the picture: 1-puncture needle, 2-anti-slip seat of protective cap, 3-puncture needle seat, 4-hand holding platform, 5-liquid outlet tube, 6-air filter, 7-switch device, 8-block Head, 9-flexible hose, 11-liquid inlet hole, 12-acupuncture head, 13-intake hole, 51-hose connection part, 52-intake channel, 53-liquid outlet channel.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

A kind of medical trocar as shown in Fig. 1, Fig. 2, mainly comprises puncture needle 1, puncture needle base 3 and hand-held platform 4 and outlet pipe 5, wherein hand-held platform 4 is by being positioned at the opposite side of outlet pipe 5 The two flat plates on both sides are respectively fixedly connected with the puncture needle holder 3. The puncture needle 1 and the hand-held platform 4 are respectively located on the opposite sides of the puncture needle holder 3 and are fixedly connected with the puncture needle holder 3 respectively. The end of the puncture needle 1 is a semi-conical needle piercing head 12 . The semi-conical needle piercing head 12 makes the piercer have a relatively sharp special-shaped tip, which is more labor-saving and smoother during the piercing operation. An air inlet 13 is provided on the acupuncture head 12, and the air inlet 13 communicates with the air inlet passage 52 on the liquid outlet pipe 5. The liquid inlet 11 on the puncture needle 1 is located below the acupuncture head 12 and It communicates with the liquid outlet channel 53 on the liquid outlet pipe 5 . During the puncture sampling operation, in order to facilitate the operator to hold the puncture device for puncture operation, and to facilitate the operator's force during the puncture operation, the puncture needle holder 3 adopts a rectangular needle holder, and the hand-holding platform 4 The overall shape is trapezoidal, and its relatively large end is fixedly connected with the puncture needle base 3, so that the trocar has a large-area hand-held end, so that the operator can easily hold the trocar and perform the puncture operation with force .

In order to avoid contamination of collected samples due to external air directly entering the inside of the medical puncture device during the puncture sampling operation, as shown in Figure 1 and Figure 2, a counterbore can be provided on the side of the liquid outlet pipe 5 and an inlet on the liquid outlet pipe 5. The air channels 52 communicate with each other, and the air filter 6 is fixedly connected with an interference fit in the counterbore on the side of the liquid outlet pipe 5. The air intake holes 13 on the needle 1 are connected with each other, and the switch device 7 is connected to the air filter 6 air inlet end. connected so that the switch device 7 can rotate relative to the air filter 6 within a certain angle range, and when the switch device 7 is rotated to close with the air filter 6, the plug 8 is sealingly connected with the air inlet of the air filter 6 .

When performing the puncturing operation, first turn on the switch device 7, then hold the hand-held platform 4, and align the puncturing head 12 of the puncturing device with force at the puncturing site for puncturing. The sample collected enters the liquid outlet channel 53 on the liquid outlet pipe 5 from the liquid inlet hole 11 , and enters the hose 9 connected to the liquid outlet pipe 5 along the liquid outlet channel 53 . In order to ensure that the connection between the hose 9 and the outlet pipe 5 is firm and reliable, a groove with a concave structure is provided on the hose connection part 51 at the output end of the outlet pipe 5, and one end of the hose 9 is inserted into the hose connection. In the groove on the part 51 and bonded with the liquid outlet pipe 5. After the puncture operation is completed, the puncture device is pulled out, the switch device 7 is turned off, and the puncture needle 1 is packaged with a protective cap. In order to prevent the protective cap from falling off, a conical protective cap anti-slip seat 2 can be added at the bottom of the puncture needle 1, and the two ends of the protective cap anti-slip seat 2 are fixedly connected with the puncture needle 1 and the puncture needle seat 3 respectively.

The medical puncture device of the present utility model is made of medical-grade plastics, wherein the puncture needle 1, the anti-skid seat 2 of the protective cap, and the puncture needle seat 3 can be fixedly connected by an integrated molding method, and the hand-held platform 4, the puncture needle The seats 3 can also be fixedly connected by integral molding. This kind of plastic puncture device with an integrated overall structure is easy to produce, reduces costs, and is more reliable in connection.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. It should be pointed out that any modification, equivalent replacement and improvement made within the spirit and principles of the utility model, etc., All should be included within the protection scope of the present utility model.

Claims (10)

1. a Medical puncture instrument, it is characterized in that: comprise puncture needle (1), Paracentesis needle holder (3) and hold platform (4) and drain pipe (5), described puncture needle (1), hold platform (4) lay respectively at the relative both sides of Paracentesis needle holder (3) and be fixedly connected with Paracentesis needle holder (3) respectively, described puncture needle (1) end is the cone-shaped acupuncture head (12) of semicircle, described acupuncture head (12) offers air inlet (13), described air inlet (13) is through with the inlet channel (52) on drain pipe (5), inlet opening (11) on described puncture needle (1) is through with the liquid outlet channel (53) on drain pipe (5).

2. a kind of Medical puncture instrument according to claim 1, it is characterized in that: also comprise air filter (6), described air filter (6) is fixedly connected with drain pipe (5) and mutually through with the inlet channel (52) on drain pipe (5).

3. a kind of Medical puncture instrument according to claim 2, it is characterized in that: described air filter (6) air inlet end connecting switch (7), described switching device (7) is the flat board being installed with plug (8), one side and air filter (6) pivot joint, when switching device (7) rotates to time closed with air filter (6), plug (8) and air filter (6) air inlet are tightly connected.

4. a kind of Medical puncture instrument according to any one of claim 1-3, it is characterized in that: also comprise helmet Anti-skid seat (2), described helmet Anti-skid seat (2) two ends are fixedly connected with puncture needle (1), Paracentesis needle holder (3) respectively.

5. a kind of Medical puncture instrument according to claim 4, is characterized in that: described helmet Anti-skid seat (2) be that integrated molding is connected between puncture needle (1), Paracentesis needle holder (3).

6. a kind of Medical puncture instrument according to any one of claim 1-3, is characterized in that: described in hold platform (4) and be formed by fixedly connecting with Paracentesis needle holder (3) respectively by the two pieces of flat boards being positioned at the relative both sides of drain pipe (5).

7. a kind of Medical puncture instrument according to claim 6, is characterized in that: described holds platform (4) in trapezoidal shape, and its relatively large one end is fixedly connected with Paracentesis needle holder (3).

8. a kind of Medical puncture instrument according to claim 6, is characterized in that: described holding between platform (4) with Paracentesis needle holder (3) is that integrated molding is connected.

9. a kind of Medical puncture instrument according to any one of claim 1-3, is characterized in that: the end of described drain pipe (5) arranges the hose transition (51) of band groove structure.

10. a kind of Medical puncture instrument according to any one of claim 1-3, is characterized in that: described Paracentesis needle holder (3) rectangular shape.