CN214807429U

CN214807429U - Remaining needle for preventing blood backflow

Info

Publication number: CN214807429U
Application number: CN202120539536.6U
Authority: CN
Inventors: 张杉; 钟桂芳; 何明星
Original assignee: First Peoples Hospital of Longquanyi District Chengdu
Current assignee: First Peoples Hospital of Longquanyi District Chengdu
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-23
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a keep somewhere needle that prevents blood reflux, including keeping somewhere the needle file, keep somewhere the needle file right side and be connected with and keep somewhere the needle tubing in, can dismantle and wear to be equipped with the pjncture needle in keeping somewhere the needle file and keeping somewhere the needle tubing, the outstanding needle tubing that keeps somewhere of pjncture needle right-hand member, the pjncture needle left end is equipped with the puncture needle file, the puncture needle file can dismantle with keeping somewhere the needle file left side and be connected, still include the seal post, the seal post right part is the screw thread section, it is equipped with the thread groove that matches with the seal post screw thread section to keep somewhere the needle tubing inner wall, the seal post can right-hand member and keep somewhere the needle tubing neat and can dismantle and wear to locate in keeping somewhere the needle file and keeping somewhere in the needle tubing, movable rotatable cover is equipped with the seal receptacle on the seal post, the seal receptacle can dismantle with keeping somewhere the needle file and be connected; the bottom end of the indwelling needle seat is communicated with a medicine storage pipe, the upper part of the medicine storage pipe is provided with a medicine pushing valve, the lower part in the medicine storage pipe is movably provided with a medicine pushing piston, the bottom of the medicine pushing piston is connected with a medicine pushing rod penetrating out of the bottom surface of the medicine storage pipe, the lower part of the medicine pushing valve on the medicine storage pipe is communicated with a medicine feeding port, and the medicine feeding port is provided with a medicine feeding valve.

Description

Remaining needle for preventing blood backflow

Technical Field

The utility model relates to an indwelling needle field specifically is a prevent blood reflux's indwelling needle.

Background

The indwelling needle is a common medical instrument in nursing work, has convenient use and the function of reducing the puncture times of patients, thereby reducing repeated puncture during clinical transfusion, reducing puncture pain of patients and workload of clinical nursing staff, and having wide application in the current clinic. When a human body is in an upright position or moves and exerts force, the venous pressure is possibly increased and higher than the pressure in the extension tube of the indwelling needle due to the influence of factors such as gravity, the pressure of the tissue outside the blood vessel and the like, and the blood easily flows back to the tube cavity of the indwelling needle, so that the tube blocking rate is increased and the indwelling time is shortened.

Chinese patent document CN202020144342.1 discloses a backflow-preventing indwelling needle device, which comprises an indwelling needle seat, an indwelling needle body, a connecting hose, a joint, a puncture needle seat, a puncture needle, a sealing base and a sealing bolt, wherein the interior of the indwelling needle body is connected with the puncture needle in a sliding manner, the puncture needle punctures the vein of a patient and drives the remaining needle body sleeved on the outer surface of the puncture needle to enter the vein of the patient, then the puncture needle which is connected with the inside of the remaining needle body in a sliding way is pulled out from the outside of the remaining needle seat, the infusion operation can be carried out on the patient, after the infusion is finished, the sealing bolt is aligned to the indwelling needle seat, the sealing bolt fixedly connected with the sealing base is inserted into the indwelling needle seat, the sealing base is clamped by the indwelling needle seat, because the length of sealing bolt equals the length of keeping somewhere the needle body, fill the inside space of keeping somewhere the needle body through sealing bolt, avoided patient's blood backward flow to cause the problem of keeping somewhere the inside needle tubing jam of needle body.

In order to prevent the blood return and blood coagulation of the indwelling needle, a positive pressure flushing and tube sealing process with heparin saline is usually required after the infusion is completed to prevent the blood return and anticoagulation. However, in the prior art, after the transfusion is finished, the heparin saline is not convenient to wash the tube, the sealing property between the sealing plug and the indwelling needle body is not enough, and blood is still likely to flow back and permeate between the sealing plug and the indwelling needle body after the sealing plug is inserted and installed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve prior art's above-mentioned problem, provide a prevent blood backward flow keep somewhere needle, can carry out heparin salt solution towards the pipe sealing before the sealed post of installation after its is used is accomplished in the infusion, and sealed post and keep somewhere needle tubing thread sealing connection, prevent blood backward flow infiltration more effectively.

The purpose of the utility model is mainly realized through the following technical scheme: a remaining needle for preventing blood backflow comprises a remaining needle seat, wherein the right side of the remaining needle seat is connected with a remaining needle tube, a puncture needle is detachably arranged in the remaining needle seat and the remaining needle tube in a penetrating manner, the right end of the puncture needle protrudes out of the remaining needle tube, the left end of the puncture needle is provided with a puncture needle seat, the puncture needle seat is detachably connected with the left side of the remaining needle seat, the top end of the remaining needle seat is communicated with a transfusion hose with a joint, the remaining needle seat further comprises a sealing column, the right part of the sealing column is a thread section, the inner wall of the remaining needle tube is provided with a thread groove matched with the thread section of the sealing column, the right end of the sealing column and the remaining level needle tube can be detachably arranged in the remaining needle seat and the remaining needle tube in a penetrating manner, the sealing column is rotatably and movably sleeved with a sealing seat, and the sealing seat can be detachably connected with the remaining needle seat; the bottom end of the indwelling needle seat is communicated with a medicine storage pipe, the upper part of the medicine storage pipe is provided with a medicine pushing valve, the lower part in the medicine storage pipe is movably provided with a medicine pushing piston, the bottom of the medicine pushing piston is connected with a medicine pushing rod penetrating out of the bottom surface of the medicine storage pipe, the lower part of the medicine pushing valve on the medicine storage pipe is communicated with a medicine feeding port, and the medicine feeding port is provided with a medicine feeding valve.

Preferably, the seal receptacle is including being used for can dismantling the mount pad of being connected with keeping somewhere the needle file, connecting in the left scalable shell of mount pad, and sealed post left end is located to scalable shell cover, and the mount pad is worn out to sealed post right-hand member, and sealed post is rotatable for scalable shell, rotatable and the removal for the mount pad.

To sum up, the utility model discloses following beneficial effect has: through thread sealing connection between sealed post and the indwelling needle tubing, prevent blood backward flow infiltration more effectively, be convenient for in addition inject heparin salt solution and wash tub sealing tube before the sealed post of installation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic structural view of a conventional blood return prevention indwelling needle.

Fig. 2 is a schematic view of a partial cross-section of a sealing post according to an embodiment of the present invention.

Fig. 3 is a schematic partial sectional view of the sealing post of an embodiment of the present invention.

Fig. 4 is a schematic partial sectional view of an extended telescopic housing according to an embodiment of the present invention.

Fig. 5 is a schematic partial sectional view of a retractable housing in a retracted state according to an embodiment of the present invention.

In the figure: 1-indwelling needle seat, 2-indwelling needle tube, 3-puncture needle, 4-puncture needle seat, 5-transfusion flexible tube, 6-sealing column, 7-sealing seat, 71-mounting seat, 72-telescopic shell, 8-medicine storage tube, 9-medicine pushing valve, 10-medicine pushing piston, 11-medicine pushing rod and 12-medicine adding port.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indicators in the embodiments of the present invention, such as upper, lower, left, right, front and rear … …, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "coupled" are intended to be inclusive and mean, for example, that is, fixedly coupled, removably coupled, or integrally coupled; 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 in specific cases to those skilled in the art.

Example (b): the utility model provides a prevent needle of keeping somewhere of blood backward flow, its basic structure, principle and prior art are similar, do simple description here, as shown in figure 1, including keeping somewhere needle file 1, keep somewhere 1 right side of needle file and be connected with and keep somewhere needle tubing 2, keep somewhere needle file 1 and keep somewhere in the needle tubing 2 and can dismantle to wear to be equipped with pjncture needle 3, the 3 right-hand members of pjncture needle are outstanding to be kept somewhere

needle tubing

2, and 3 left ends of pjncture needle are equipped with puncture needle file 4, and puncture needle file 4 can be dismantled with keeping somewhere 1 left side of needle file and be connected, and it has the infusion hose 5 of taking the joint to keep somewhere 1 top intercommunication of needle file.

During the use, medical personnel are handheld keeps somewhere needle file 1, aim at patient's muscle with 3 points of pjncture needle portions, exert pressure and insert pjncture needle 3 in patient's the vein, behind pjncture needle 3 got into patient's vein, will keep somewhere needle tubing 2 and bring into the vein, then with the joint connection of outside transfer line and infusion hose 5, later dismantle puncture needle file 4 with keeping somewhere needle file 1 again, outwards stimulate pjncture needle 3 through puncture needle file 4, extract pjncture needle 3 from keeping somewhere needle tubing 2 inside, then use the external fitting sealing plug to keep somewhere 1 left side of needle file sealed, can carry out infusion work to the patient.

As shown in fig. 2, the utility model discloses still including sealed post 6, sealed post 6 right part is the screw thread section, keeps somewhere the 2 inner walls of needle tubing be equipped with the screw thread groove of sealed post 6 screw thread section matching, sealed post 6 can the right-hand member with keep somewhere needle tubing 2 can flush the ground can dismantle and wear to locate keeping somewhere needle file 1 and keep somewhere in the needle tubing 2. Rotatable portable cover is equipped with seal receptacle 7 on the sealed post 6, and seal receptacle 7 can be dismantled with keeping somewhere needle file 1 left side and be connected. The bottom end of the remaining needle base 1 is communicated with a medicine storage tube 8, the upper part of the medicine storage tube 8 is provided with a medicine pushing valve 9, the inner lower part of the medicine storage tube 8 is movably provided with a medicine pushing piston 10, the bottom of the medicine pushing piston 10 is connected with a medicine pushing rod 11 penetrating out of the bottom surface of the medicine storage tube 8, the lower part of the medicine pushing valve 9 on the medicine storage tube 8 is communicated with a medicine adding opening 12, and the medicine adding opening 12 is provided with a medicine adding valve.

As shown in figures 2 and 3, after the transfusion is finished, the joint of the transfusion hose 5 is detached from the external transfusion tube, the medicine pushing valve 9 is opened, the medicine pushing piston 10 is pushed by the medicine pushing rod 11, and the heparin saline in the medicine storage tube 8 is pushed into the indwelling needle seat 1 and the indwelling needle tube 2, so that the tube washing and tube sealing are carried out. When the medicine pushing piston 10 is pushed upward by the medicine pushing rod 11, the medicine pushing piston 10 must not be pushed through the medicine adding opening 12. After the tube is flushed, the drug pushing valve 9 is closed, the drug adding port 12 is connected with an external heparin saline bottle, the drug adding valve is opened, the drug pushing piston 10 is pulled back, and the drug adding valve is closed after the heparin saline in the drug storage tube 8 is filled. Then the sealing plug is taken down from the indwelling needle seat 1, the sealing column 6 is inserted in alignment with the indwelling needle seat 1, the sealing seat 7 is installed on the left side of the indwelling needle seat 1, and then the sealing column 6 is screwed to insert the thread section of the sealing column 6 into the indwelling needle tube 2.

When needing to infuse next time, will twist sealing column 6 soon to break away from with keeping somewhere needle tubing 2, then dismantle sealing seat 7 and keep somewhere needle file 1 and pull out sealing column 6 from keeping somewhere needle file 1, fill in the sealing plug to keeping somewhere needle file 1 left side again, can infuse after being connected infusion hose 5 and outside transfer line again.

The utility model discloses well sealed post 6 with keep somewhere through thread sealing connection between the needle tubing 2, can be more for effectively preventing the blood backward flow infiltration, be convenient for in addition insert after the infusion accomplish that the installation seals post 6 before push heparin salt solution and wash the pipe and seal the pipe, improve and prevent blood return and anti-freezing effect, also improved work efficiency.

Specifically, in order to protect the sealing post 6, as shown in fig. 4 and 5, the sealing seat 7 includes a mounting seat 71 for detachable connection with the indwelling needle holder 1, and a retractable shell 72 connected to the left side of the mounting seat 71, the retractable shell 72 is sleeved on the left end of the sealing post 6, and the retractable shell 72 may be a retractable hose with a closed left end. The right end of the sealing column 6 penetrates through the mounting seat 71, and the sealing column 6 can rotate relative to the telescopic shell 72 and can rotate and move relative to the mounting seat 71.

After the infusion is finished and the tube is washed, when the sealing column 6 is inserted and installed, the sealing column 6 is inserted into the indwelling needle seat 1 in a aligning mode, the installation seat 71 and the left side of the indwelling needle seat 1 are installed, the sealing column 6 can rotate and move relative to the installation seat 71 and can rotate relative to the telescopic shell 72 and the telescopic shell 72, the threaded section of the sealing column 6 can be inserted into the indwelling needle tube 2 in a rotating mode by rotating the sealing column 6, and the telescopic shell 72 is shortened towards the installation seat 71 under the driving of the sealing column 6 in the process. Through the design of seal receptacle 7 for insert sealed post 6 soon after keeping somewhere needle file 1, seal receptacle 7 and keeping somewhere needle file 1 left side installation and insert sealed post 6 and get into the in-process of keeping somewhere needle tubing 2, sealed post 6 gets into to keep somewhere needle file 1 and keeps somewhere the part of needle tubing 2 and is kept apart by scalable shell 72 protection and environment, avoids polluting.

Parts not described in the above modes can be realized by adopting or referring to the prior art.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.

Claims

1. The utility model provides a prevent needle of keeping somewhere of blood backward flow, including keeping somewhere needle file (1), it is connected with on the right side of needle file (1) and keeps somewhere needle tubing (2), it wears to be equipped with pjncture needle (3) to keep somewhere needle file (1) and can dismantle in needle tubing (2) to keep somewhere, pjncture needle (3) right-hand member is outstanding to keep somewhere needle tubing (2), pjncture needle (3) left end is equipped with puncture needle file (4), puncture needle file (4) can be dismantled with keeping somewhere needle file (1) left side and be connected, it has infusion hose (5) of area joint to keep somewhere needle file (1) top intercommunication, its characterized in that: the needle indwelling needle is characterized by further comprising a sealing column (6), the right part of the sealing column (6) is a threaded section, a threaded groove matched with the threaded section of the sealing column (6) is formed in the inner wall of the indwelling needle tube (2), the right end of the sealing column (6) can be flush with the indwelling needle tube (2) and detachably arranged in the indwelling needle seat (1) and the indwelling needle tube (2), a sealing seat (7) can be rotatably and movably sleeved on the sealing column (6), and the sealing seat (7) can be detachably connected with the indwelling needle seat (1); the bottom end of the indwelling needle seat (1) is communicated with a medicine storage pipe (8), the upper part of the medicine storage pipe (8) is provided with a medicine pushing valve (9), the inner lower part of the medicine storage pipe (8) is movably provided with a medicine pushing piston (10), the bottom of the medicine pushing piston (10) is connected with a medicine pushing rod (11) penetrating out of the bottom surface of the medicine storage pipe (8), the lower part of the medicine pushing valve (9) on the medicine storage pipe (8) is communicated with a medicine adding opening (12), and the medicine adding valve is arranged on the medicine adding opening (12).

2. The indwelling needle for preventing backflow of blood according to claim 1, wherein: sealing seat (7) including be used for with keep somewhere mount pad (71) of needle file (1) detachable connection, connect in the left scalable shell (72) of mount pad (71), sealed post (6) left end is located in scalable shell (72) cover, sealed post (6) right-hand member wears out mount pad (71), sealed post (6) are rotatable for scalable shell (72), for mount pad (71) rotatable and removal.