CN215687875U

CN215687875U - Arterial blood gas collection system

Info

Publication number: CN215687875U
Application number: CN202121170300.6U
Authority: CN
Inventors: 安丽巧; 黄芝蓉; 黄瑞洁; 邓芙蓉; 农咏然
Original assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Current assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-02-01
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses an arterial blood gas collecting device which comprises a needle cylinder, a piston rod and a needle head, wherein one end of the needle cylinder is connected with the piston rod in a sliding mode, the other end of the needle cylinder is integrally communicated with a needle base, one end of the needle head is provided with a needle tip part, the other end of the needle head is provided with a connector in threaded connection with the needle base, the outer surface of the connector is provided with a plurality of clamping grooves along the length direction of the connector, the arterial blood gas collecting device further comprises a needle sleeve sleeved outside the needle head, the inner wall of the needle sleeve is provided with a plurality of convex strips which are in one-to-one inserting fit with the clamping grooves, and a rubber plug used for blocking the needle tip part is further arranged in the needle sleeve. The arterial blood gas collection device is convenient for bare-handed disassembly of the needle head, and the phenomena of puncture and scratch by the needle head cannot occur in the disassembly process, so that the working efficiency is improved.

Description

Arterial blood gas collection system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an arterial blood gas collecting device.

Background

The arterial blood gas analysis is an important inspection means for judging whether the acid-base balance disorder exists in the patient and judging whether the patient has oxygen deficiency and carbon dioxide retention in medicine. Has important significance for monitoring, diagnosing and treating the urgent, dangerous and serious patients. When the arterial blood gas needle has been used to handle, perhaps some hospitals when the arterial blood gas needle after the sampling censorship, need dismantle the syringe needle get off, for example, disclose a novel arterial blood gas needle in the utility model patent that publication number is CN106923841A, its syringe needle adopts to dismantle with the needle file and is connected, but the bare-handed dismantlement of medical personnel, be pricked easily by the syringe needle, the fish tail, it is very difficult to dismantle, if dismantle with the help of dismantling equipment, the operation is more loaded down with trivial details again, work load has been increased.

Disclosure of Invention

The utility model aims to solve at least one of the technical problems, and provides an arterial blood gas collection device which is convenient for the free-hand disassembly of a needle head, can not be punctured or scratched by the needle head in the disassembly process, and improves the working efficiency.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an arterial blood gas collection system, including the cylinder, piston rod and syringe needle, the one end and the piston rod sliding connection of cylinder, the integrative intercommunication of the other end of cylinder has the needle file, the one end of syringe needle has the needle point portion, the other end of syringe needle have with needle file threaded connection's connector, the surface of connector is provided with a plurality of draw-in grooves along its length direction, still include the needle cover of suit at the syringe needle outside, the inner wall of needle cover is provided with a plurality of sand grips of pegging graft the complex one by one with the draw-in groove, and the rubber stopper that is used for shutoff needle point portion still is installed in the needle cover.

Preferably, the needle base is provided with an external thread connecting part, and the end part of the connector is provided with a threaded connecting hole matched with the external thread connecting part.

Preferably, the clamping grooves are at least three and are uniformly distributed around the axis of the connector.

Preferably, the needle cover is the tubulose of front end open-ended, and it is including setting up at front end and connector complex round tube portion to and set up the toper portion at the rear end, the sand grip equipartition sets up the inner wall in round tube portion.

Preferably, the needle sleeve is internally provided with a mounting seat for mounting a rubber plug at one end of the conical part far away from the round tube part.

Preferably, a plurality of reinforcing ribs are arranged in the needle sleeve, one ends of the reinforcing ribs are respectively connected with the convex strips one by one, and the other ends of the reinforcing ribs are connected with the mounting seat.

Preferably, the outer wall of the needle guard is provided with a plurality of anti-slip stripes around the axis thereof.

Preferably, the front end of the slot extends to both sides to form a tapered guide portion.

Preferably, a movable circular baffle is arranged in the needle base, the circular baffle is fixedly connected with a knob for driving the circular baffle to rotate, the knob is arranged outside the needle base and is in rotating fit with the needle base, and the cross section of the circular baffle is matched with the radial inner section of the needle base, so that the baffle can seal the inner channel of the needle base.

The beneficial effects are that: compared with the prior art, the arterial blood gas collection device has the advantages that the needle sleeve is arranged, after arterial blood collection is completed, the needle head can be completely covered in the needle sleeve, so that an operator is prevented from being hurt or scratched by the needle head, the arterial blood sample is convenient to transport and store, and meanwhile, the needle tip can be blocked after the needle head is covered by the needle sleeve through the needle sleeve, so that air is prevented from entering the needle cylinder through the opening of the needle tip, and the arterial blood sample is completely isolated from the air; the arterial blood gas collection device is characterized in that the needle head is detachably mounted on the needle base in a threaded connection mounting mode, the needle sleeve is provided with the raised line which is in plug fit with the clamping groove in the connector, and the needle sleeve can drive the connector to rotate relative to the needle base by rotating the needle sleeve after being in plug fit with the connector, so that the needle head is detached from the needle base, the needle head is detached by bare hands without any external instrument, the detachment is convenient and quick, the working efficiency of an operator is improved, and the situation that the needle head is pricked and scratched cannot occur in the detachment process under the protection of the needle sleeve.

Drawings

The following detailed description of embodiments of the utility model is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic structural view of an arterial qi and blood needle according to the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a schematic view of the needle;

fig. 4 is a schematic view of the structure of the needle guard.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, an arterial blood collection device comprises a needle cylinder 1, a piston rod 2 and a needle head 3, wherein one end of the needle cylinder 1 is slidably connected with the piston rod 2, the other end of the needle cylinder 1 is integrally communicated with a needle seat 4, one end of the needle head 3 is provided with a needle point part 5, the other end of the needle head 3 is provided with a connector 6 in threaded connection with the needle seat 4, specifically, an external thread connecting part 11 can be arranged on the needle seat 4, the end part of the connector 6 is provided with a threaded connecting hole 12 matched with the external thread connecting part 11 along the axial direction, the threaded connecting hole 12 is in threaded fit with the external thread connecting part 11, so that the needle head 3 is detachably installed on the needle seat 4, the connector 6 can be cylindrical, the outer surface of the connector 6 is provided with a plurality of clamping grooves 7 along the length direction, the arterial needle guard 8 is sleeved outside the needle head 3, the inner wall of the arterial blood collection device is provided with a plurality of raised strips 9 in one-to-by-one insertion fit with the clamping grooves 7, and the needle sleeve 8 is also internally provided with a rubber plug 10 for plugging the needle tip part 5, and the convex strip 9 is in inserted fit with the clamping groove 7, so that the needle sleeve 8 can be stably sleeved outside the needle head 3, and the needle sleeve 8 cannot rotate relative to the connector 6.

According to the arterial blood collection device, the needle sleeve 8 is arranged, after arterial blood collection is completed, the needle 3 can be completely covered in the needle sleeve 8, so that an operator is prevented from being pricked or scratched by the needle 3, the arterial blood sample is conveniently conveyed and stored, and meanwhile, the needle sleeve 8 is internally provided with the rubber plug 10, so that the needle tip part 5 can be blocked after the needle 3 is covered by the needle sleeve 8, air is prevented from entering the needle cylinder 1 through an opening of the needle tip part 5, and the arterial blood sample is completely isolated from the air; the arterial blood gas collection device is characterized in that the needle head 3 is detachably mounted on the needle seat 4 in a threaded connection mounting mode, the needle sleeve 8 is provided with the raised line 9 which is in inserting fit with the clamping groove 7 on the connector 6, and the needle sleeve 8 can drive the connector 6 to rotate relative to the needle seat 4 by rotating the needle sleeve 8 after being in inserting fit with the connector 6, so that the needle head 3 is dismounted from the needle seat 4, the needle head 3 is dismounted by bare hands without any external instrument, the dismounting is convenient and fast, the working efficiency of medical workers is improved, and under the protection of the needle sleeve 8, the phenomena of puncture and scratching of the needle head 3 cannot occur in the dismounting process.

In one preferred embodiment, the number of the clamping grooves 7 can be at least three, and the clamping grooves are uniformly distributed around the axis of the connector 6, so that the connection stability of the needle sleeve 8 and the connector 6 is improved, and the needle sleeve 8 is in plug-in fit with the clamping grooves 7 on the connector 6, so that the stress of the connector 6 is more balanced during rotation, and the needle 3 is convenient to disassemble.

Preferably, the needle sleeve 8 may be a tubular sleeve with an open front end, and includes a round tube portion 13 disposed at the front end and engaged with the connector 6, and a tapered portion 14 disposed at the rear end, and the convex strips 9 are uniformly disposed on the inner wall of the round tube portion 13.

To facilitate the installation of the rubber plug 10, a mounting seat 15 for installing the rubber plug 10 may be provided in the needle sleeve 8 at an end of the tapered portion 14 away from the circular tube portion 13.

Further, a plurality of reinforcing ribs 16 can be arranged in the needle sleeve 8, one end of each reinforcing rib 16 is connected with the protruding strip 9 one by one, and the other end of each reinforcing rib is connected with the mounting seat 15, so that the structural strength of the needle sleeve 8 is improved, and the needle sleeve 8 is not easy to deform when rotating.

Further, the outer wall of the sleeve 8 may be provided with a plurality of anti-slip strips 17 around its axis to prevent slippage of the sleeve 8 during rotation.

In another preferred embodiment, the front end of the locking slot 7 may be extended to both sides to form a tapered guiding portion 18, so as to guide the rib 9 for facilitating the sheathing of the needle hub 8.

In a more preferred embodiment, a movable circular baffle 19 may be disposed in the needle holder 4, the circular baffle 19 is fixedly connected with a knob 20 for driving the circular baffle 19 to rotate, the knob 20 is disposed outside the needle holder 4 and is in rotating fit with the needle holder 4, a cross section of the baffle is matched with a radial inner cross section of the needle holder 4, the circular baffle 19 may be rotated by the knob 20, so that the circular baffle 19 seals an inner channel of the needle holder 4, or the inner channel of the needle holder 4 is opened, when collecting arterial blood, the knob 20 is rotated to enable the inner channel of the needle holder 4 to be in an opened state, after collecting arterial blood samples, the knob 20 is rotated to enable the inner channel of the needle holder 4 to be completely sealed, and then the needle 3 is pulled out from the patient, thereby effectively preventing the situation that air enters the needle cylinder 1 through the needle tip portion 5 after the needle 3 is pulled out.

The above embodiments are only for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered within the technical solutions of the present invention.

Claims

1. The utility model provides an artery blood gas collection system, including cylinder (1), piston rod (2) and syringe needle (3), the one end and piston rod (2) sliding connection of cylinder (1), the integrative intercommunication of the other end of cylinder (1) has needle file (4), the one end of syringe needle (3) has pinpoint portion (5), a serial communication port, the other end of syringe needle (3) has connector (6) with needle file (4) threaded connection, the surface of connector (6) is provided with a plurality of draw-in grooves (7) along its length direction, still including suit needle cover (8) in syringe needle (3) outside, the inner wall of needle cover (8) is provided with a plurality of sand grips (9) of pegging graft complex one by one with draw-in groove (7), and still install plug (10) that are used for shutoff pinpoint portion (5) in needle cover (8).

2. An arterial blood collection device according to claim 1, characterized in that the needle holder (4) is provided with an external thread connection part (11), and the end of the connector (6) is provided with a threaded connection hole (12) matched with the external thread connection part (11).

3. An arterial blood collection device according to claim 1, characterized in that the number of the clamping grooves (7) is at least three and is uniformly distributed around the axis of the connector (6).

4. An arterial blood collection device according to claim 1, wherein the needle sheath (8) is tubular with an open front end and comprises a round tube part (13) arranged at the front end and matched with the connector (6) and a conical part (14) arranged at the rear end, and the convex strips (9) are uniformly distributed on the inner wall of the round tube part (13).

5. An arterial blood collection device according to claim 4, wherein the needle guard (8) is provided with a mounting seat (15) for mounting a rubber plug (10) at the end of the conical portion (14) away from the round tube portion (13).

6. The arterial blood collection device according to claim 5, wherein a plurality of reinforcing ribs (16) are arranged in the needle sleeve (8), one end of each reinforcing rib (16) is connected with the protruding strip (9) one by one, and the other end of each reinforcing rib is connected with the mounting seat (15).

7. An arterial blood collection device according to claim 1 wherein the outer wall of the needle sheath (8) is provided with a plurality of anti-slip stripes (17) around its axis.

8. An arterial blood collection device according to claim 1, characterized in that the front end of the neck (7) extends to both sides to form a tapered guide (18).

9. An arterial blood gas collection device according to claim 1, characterized in that a movable circular baffle (19) is arranged in the needle seat (4), the circular baffle (19) is fixedly connected with a knob (20) for driving the circular baffle to rotate, the knob (20) is arranged outside the needle seat (4) and is rotatably matched with the needle seat (4), and the cross section of the circular baffle (19) is matched with the radial inner section of the needle seat (4) so that the baffle can seal the inner channel of the needle seat (4).