CN215078624U

CN215078624U - Novel blood gas puncture needle

Info

Publication number: CN215078624U
Application number: CN202120628808.XU
Authority: CN
Inventors: 权哲峰
Original assignee: Beijing Youan Hospital
Current assignee: Beijing Youan Hospital
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-12-10
Anticipated expiration: 2031-03-26

Abstract

The utility model relates to the technical field of medical appliances, in particular to a novel blood gas puncture needle, which comprises a three-way connector, a needle head, a first injector and a second injector, the utility model discloses a needle head, the first injector and the second injector are respectively connected on the three-way connector, a switch valve is arranged on a first connecting pipe connected with the first injector, when in use, the second injector is firstly used for back-pumping blood, then the switch valve is opened, the first injector is used for pumping blood needing blood gas, and finally the switch valve is closed, the first injector is taken down from the connecting seat, thereby when in blood gas analysis, the injector is not needed to be replaced for blood collection, thereby avoiding iatrogenic pollution caused therein; through sealed dish of at second connector internally mounted to make first syringe at the convenient conversion of two processes of blood sampling and blood sample transportation, should set up not only effectively avoided the contact of air with the blood sample, the artery blood gas analysis's that has effectively improved accuracy.

Description

Novel blood gas puncture needle

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a novel blood-gas puncture needle.

Background

The blood-gas puncture needle is commonly used for collecting blood when a severe patient performs blood-gas analysis, but another syringe is often needed, a part of blood (polluted or diluted to influence the result) is firstly taken, then the blood-gas puncture needle is used for drawing blood, and flowing fresh blood is taken for monitoring. The novel blood-gas puncture needle is designed aiming at the problems that the oxygen partial pressure of a blood sample is increased and the carbon dioxide is reduced, so that the blood cannot be analyzed to obtain an accurate result, and then the accurate judgment of a patient and clinic cannot be made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel blood gas pjncture needle to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel blood gas pjncture needle, includes three-dimensional connector, syringe needle, first syringe and second syringe, three-dimensional connector one end is provided with the connection needle file, the connection needle file side is connected installs the syringe needle, the three-dimensional connector other end is connected with first connecting pipe and second connecting pipe, first connecting pipe one end is connected with first syringe through the second connector, the second connecting pipe is connected with the second syringe through first connector, second connector one end is provided with the nipple, be provided with sealed dish in the middle of the second connector inner chamber, there is the rotary rod sealed bearing swing joint in the second connector outside sealed dish side, rotatory handle is installed on the rotary rod top.

Preferably, the top end of the first connecting pipe is provided with a connecting seat, the inside of the connecting seat is matched with the threaded head, and the threaded head is fixedly connected with the connecting seat through threads, so that the first injector can be conveniently mounted and dismounted.

Preferably, a switch valve is installed on one side of the first connecting pipe, which is close to the three-way connector, so that the first syringe and the second syringe can respectively draw blood conveniently.

Preferably, a circle of embedding groove is formed in the joint of the sealing disc and the inner cavity wall of the second connector, a sealing rubber ring is arranged in the middle of the side face of the sealing disc, the sealing rubber ring is matched with the embedding groove in position and size, the sealing rubber ring is fixedly connected with the embedding groove in an embedded mode, and when the first injector is taken out, the inside of the first injector is isolated from the outside.

Preferably, the sealing disc and the rotating rod are made of medical grade polypropylene, and the sealing rubber ring is made of medical silica gel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a be connected with syringe needle, first syringe and second syringe respectively on the three-way connector, be provided with the ooff valve on the first connecting pipe that is connected with on the first syringe, when using, at first with the second syringe pumpback blood, then open the ooff valve, reuse first syringe to take out the blood that needs to carry on the blood gas, close the ooff valve at last, take off first syringe from the connecting seat, thereby in the blood gas analysis, gather blood and need not change the syringe, avoided the iatrogenic pollution that causes among them; through sealed dish at second connector internally mounted, and sealed rubber ring on the sealed dish and gomphosis groove looks gomphosis fixed connection to make first syringe in the convenient conversion of two processes of blood sampling and blood sample transportation, should set up the contact of not only effectively having avoided air and blood sample, the artery blood gas analysis's that has effectively improved accuracy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the second connector of the present invention;

fig. 3 is a schematic diagram of the sealing disc structure of the present invention.

In the figure: 1. a three-way connector; 2. a needle head; 3. a first syringe; 4. a second syringe; 5. connecting a needle seat; 6. a first connecting pipe; 7. a second connecting pipe; 8. a first connector; 9. an on-off valve; 10. a connecting seat; 11. a second connector; 12. rotating the handle; 13. sealing the disc; 14. sealing the rubber ring; 15. a fitting groove; 16. rotating the rod; 17. and (4) a thread head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a novel blood gas pjncture needle, including three-way connector 1, syringe needle 2, first syringe 3 and

second syringe

4, 1 one end of three-way connector is provided with

connection needle file

5, 5 side connections in connection needle file install syringe needle 2, the 1 other end of three-way connector is connected with first connecting pipe 6 and second connecting pipe 7, 6 one end in first connecting pipe is connected with first syringe 3 through second connector 11, second connecting pipe 7 is connected with second syringe 4 through

first connector

8, 11 one end in second connector is provided with screw thread 17, be provided with sealed dish 13 in the middle of 11 inner chambers in the second connector, sealed dish 13 side has rotary rod 16 through 18 swing joint of sealed bearing in the 11 outsides in second connector, rotatory handle 12 is installed on the 16 tops of rotary rod.

Further, the top end of the first connecting pipe 6 is provided with a connecting seat 10, the inside of the connecting seat 10 is matched with a thread head 17, and the thread head 17 is fixedly connected with the connecting seat 10 through threads, so that the first injector 3 can be conveniently mounted and dismounted.

Further, a switch valve 9 is installed on the first connecting tube 6 near the three-way connector 1, so that the first syringe 3 and the second syringe 4 can respectively draw blood conveniently.

Furthermore, a circle of embedding grooves 15 are formed in the connecting position of the sealing disc 13 and the inner cavity wall of the second connector 11, a sealing rubber ring 14 is arranged in the middle of the side face of the sealing disc 13, the sealing rubber ring 14 is matched with the embedding grooves 15 in position and size, the sealing rubber ring 14 is fixedly connected with the embedding grooves 15 in an embedding mode, and when the first injector 3 is taken out, the inner portion of the first injector is isolated from the outside.

Further, the sealing disc 13 and the rotating rod 16 are made of medical grade polypropylene, and the sealing rubber ring 14 is made of medical silica gel.

The utility model discloses a be connected with syringe needle 2, first syringe 3 and second syringe 4 on three-way connector 1 respectively, be provided with switch valve 9 on being connected with first connecting pipe 6 on syringe 3, when using, at first use second syringe 4 to suck back blood, then open switch valve 9, reuse first syringe 3 to suck the blood that needs to carry on the blood gas, close switch valve 9 at last, take off first syringe 3 from connecting seat 10 can, thus in the blood gas analysis, gather blood and need not change the syringe, the iatrogenic pollution that has caused wherein has been avoided; through at 11 internally mounted seal dish 13 of second connector, and seal rubber ring 14 on the seal dish 13 and gomphosis groove 15 looks gomphosis fixed connection to make first syringe 3 at the convenient conversion of two processes of blood sampling and blood sample transportation, this setting has not only effectively avoided the contact of air with the blood sample, the artery blood gas analysis's that has effectively improved accuracy.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel blood gas pjncture needle, includes three-way connector (1), syringe needle (2), first syringe (3) and second syringe (4), its characterized in that: three-way connector (1) one end is provided with connection needle file (5), connection needle file (5) side connection installs syringe needle (2), the three-way connector (1) other end is connected with first connecting pipe (6) and second connecting pipe (7), first connecting pipe (6) one end is connected with first syringe (3) through second connector (11), second connecting pipe (7) are connected with second syringe (4) through first connector (8), second connector (11) one end is provided with screw thread head (17), be provided with sealed dish (13) in the middle of second connector (11) inner chamber, sealed dish (13) side has rotary rod (16) through sealed bearing (18) swing joint in second connector (11) outside, rotary rod (12) are installed on rotary rod (16) top.

2. A novel blood-gas puncture needle according to claim 1, characterized in that: the connecting device is characterized in that a connecting seat (10) is arranged at the top end of the first connecting pipe (6), the inside of the connecting seat (10) is matched with a threaded head (17), and the threaded head (17) is fixedly connected with the connecting seat (10) through threads.

3. A novel blood-gas puncture needle according to claim 1, characterized in that: and a switch valve (9) is arranged on one side of the first connecting pipe (6) close to the three-way connector (1).

4. A novel blood-gas puncture needle according to claim 1, characterized in that: sealed dish (13) and second connector (11) inner chamber wall junction have seted up round gomphosis groove (15), sealed dish (13) side middle sealing rubber ring (14) that is provided with, sealing rubber ring (14) and gomphosis groove (15) position size phase-match, sealing rubber ring (14) and gomphosis groove (15) looks gomphosis fixed connection.

5. A novel blood-gas puncture needle according to claim 1, characterized in that: sealed dish (13) and rotary rod (16) adopt medical grade polypropylene to make, sealed rubber ring (14) adopt medical silica gel to make.