CN212817468U - Precise filtering infusion apparatus with integrated venous infusion needle protective sleeve - Google Patents

Abstract

The utility model discloses a take microfiltration transfusion system of disjunctor formula venous transfusion needle protective sheath, concretely relates to medical instrument field, including the infusion hose, the infusion hose is kept away from the fixed vein needle that is equipped with of bottle plug puncture ware one end, the vein needle outside is equipped with the syringe needle protective sheath, be equipped with the connecting band between syringe needle protective sheath and the infusion hose. The utility model discloses a be equipped with the vein needle, syringe needle protective sheath and connecting band, it is stronger than traditional mode stability of cup jointing, continuously play the protection effect to the needle tubing by the sleeve pipe, avoid causing the wrapping bag to puncture or the emergence that the vein needle received the pollution scheduling problem because of the syringe needle protective sheath drops, and when the infusion, peg graft sheathed tube through-hole and fixed column, avoid because of dropping that the less time of taking of sleeve pipe volume caused, lose, treat behind the vein injection work completion, reset the syringe needle protective sheath to the position before not using, can effectively avoid the transfusion system to use the back vein needle to prick the risk of hindering the people, further improve the safety in utilization of this device.

Description

Precise filtering infusion apparatus with integrated venous infusion needle protective sleeve

Technical Field

The invention relates to the technical field of medical instruments, in particular to a precise filtering infusion set with a connected intravenous infusion needle protective sleeve.

Background

As early as 30 years in the 20 th century, patients can have various transfusion reactions in the transfusion process discovered by clinical medical treatment and have special pathogenic side effects. In the 50 s of the 20 th century, numerous scholars reported the harm of particles in infusion. Since the 90 s, China generally adopts a disposable common infusion apparatus to carry out venous infusion, has the advantages of avoiding iatrogenic cross infection due to low price and simple operation, and completely replaces the traditional rubber infusion tube clinically. However, through years of clinical application, the disposable common infusion apparatus also has some troublesome problems in use, and needs to be confronted by a wide nursing field. The aperture of the filter medium of the prior domestic infusion apparatus is generally 15 microns, particles with the diameter less than 15 microns are hardly intercepted, the particles with the diameter more than 10 microns in the liquid medicine only account for about 1 percent, the particles with the diameter less than 10 microns account for about 98 percent, and adverse reaction and long-term influence of infusion are inevitable. In order to meet clinical needs and avoid or reduce the harm of particles to patients, the world medical organization has introduced a precise filtration infusion set, and has been generally accepted by the medical community of advanced countries. At present, in the process of infusion, infusion reaction sometimes occurs, and in addition to bacterial pollution reaction and pyrogen reaction, particle pollution reaction caused by insoluble particles is more and more paid attention by people. The use of a precise filtration infusion set is an effective measure for reducing infusion reaction, because the liquid medicine filter of the infusion set is the last way to filter out particles in liquid medicine. The expert finds through experiments that no transfusion reaction occurs when the disposable precise transfusion device is used, and 15 cases of transfusion reactions occur when the common transfusion device is used.

The method is an indispensable important method and means in clinical treatment, before infusion, a protective sleeve and an infusion needle are sleeved together in a precise infusion apparatus of the split type intravenous infusion needle protective sleeve, but the protective sleeve and the infusion needle may fall off due to factors such as shaking in the transfer process, and the risk of puncture caused by the fact that the infusion needle punctures a packaging bag and the bacteria of the infusion needle are bred may be caused; and during infusion, the protective sheath is often thrown away, when having lost the liquid and concentrating the storage to the transfusion system, the venous transfusion needle has the risk of stabbing people equally, can't guarantee its safety in utilization.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides a precise filtering infusion apparatus with an integrated intravenous infusion needle protection sleeve, and the technical problems to be solved by the invention are as follows: how to solve the problem that the prior infusion apparatus hurts people after being transported and used.

In order to achieve the purpose, the invention provides the following technical scheme: a precise filtering infusion apparatus with an integrated venous infusion needle protective sleeve comprises an infusion hose, a liquid medicine filter, a flow speed regulator, a drip cup, a bottle stopper puncture outfit and an air filter, wherein the liquid medicine filter, the flow speed regulator, the drip cup, the bottle stopper puncture outfit and the air filter are fixedly arranged at different positions of the infusion hose in an aligned mode, a sealing clamp is arranged between the drip cup and the bottle stopper puncture outfit, a venous needle is fixedly arranged at one end, away from the bottle stopper puncture outfit, of the infusion hose, a needle head protective sleeve is arranged outside the venous needle, and a connecting belt is arranged between the needle head protective sleeve and the infusion hose;

the intravenous needle comprises a needle tube, a connecting tube is arranged between one end of the needle tube, which is far away from the needle point, and an infusion hose, a handheld piece is fixedly arranged on one side of the outer wall of the connecting tube, a fixing boss is fixedly arranged at one end of the connecting tube, which is close to the needle tube, and a thread is arranged on the outer wall of the fixing boss;

the needle head protective sleeve comprises a sleeve, a limiting boss is fixedly arranged on one side of the outer wall of the sleeve, a through hole is formed in one end of the sleeve, threads are arranged in the through hole, and a plurality of limiting convex strips are uniformly arranged on the inner wall of the sleeve and at positions corresponding to the limiting bosses;

the connecting band comprises a main body band, a first connecting ring is fixedly arranged at one end of the main body band, a second connecting ring is fixedly arranged at the other end of the main body band, and a fixing column is fixedly arranged on one side of the second connecting ring.

As shown in fig. 1-7, the problems of package bag puncture or vein needle pollution caused by falling off of the needle head protective sleeve are avoided by the thread fixation between the needle head protective sleeve and the fixed boss, when in transfusion, the through hole of the sleeve is inserted with the fixing column, the medical adhesive tape, part of the transfusion hose and the main body belt are fixed at the position of the vein injection together, the hanging of the main body belt and clothes, zippers and the like caused by the body position rotation in the vein injection process is avoided, after the vein injection work is finished, the user pulls the sleeve and the fixing column away from each other, the needle tube is put into the inner cavity of the sleeve along the through hole, the sleeve is rotated to be fixed at the position of the connecting tube, the first connecting ring can rotate around the limiting lug boss during the period, the knotting and the stressing of the main body belt are avoided, thereby effectively preventing the falling problem caused by the convolute of the sleeve under the condition that the main body has the counterforce after the positions of the vein needle and the needle head protective sleeve are fixed.

In a preferred embodiment, the connecting tube, the handheld piece and the fixing boss are integrally formed, so that the medical staff can conveniently perform the intravenous needle insertion through the position of the handheld piece.

In a preferred embodiment, the outer diameter of the fixing boss is matched with the inner diameter of the through hole, the sleeve is in threaded connection with the fixing boss through threads, and accidental falling of the needle head protective sleeve caused by factors such as shaking is avoided through the threaded connection.

In a preferred embodiment, the distance between the two limit convex strips which are circularly and symmetrically distributed in the inner cavity of the sleeve is equal to the outer diameter of the needle tube, and the inner diameter of the sleeve is equal to the outer diameter of the fixed post, so that the relative position stability of the needle tube and the fixed post when the needle tube and the fixed post are inserted into the sleeve can be ensured.

In a preferred embodiment, the limiting boss is integrally formed with the sleeve, the limiting boss comprises an upper limiting column and a lower connecting column, the outer diameter of the lower connecting column is smaller than the inner diameter of the first connecting ring, and the outer diameter of the upper limiting column is larger than the inner diameter of the first connecting ring, so that the limiting boss is guaranteed to be limited to the position of the first connecting ring, and the first connecting ring is guaranteed to rotate at the position of the limiting boss.

In a preferred embodiment, the inner diameter of the second connection ring is equal to the outer diameter of the infusion hose, so that the medical personnel can adjust the relative position of the second connection ring on the infusion hose conveniently without deformation caused by extrusion of the infusion hose.

In a preferable embodiment, both ends of the sealing clamp are provided with threading holes, the inner diameter of each threading hole is equal to the outer diameter of the infusion hose, and the sealing clamp can be mounted on the infusion hose without influencing the normal liquid supply of the infusion hose.

In a preferred embodiment, the first connecting ring is rotatably connected along the limiting boss, so that the sleeve and the fixing boss are prevented from rotating due to the fact that a reaction force is generated by the rotation of the main body belt when the sleeve is rotated.

The invention has the technical effects and advantages that:

according to the invention, the intravenous needle, the needle head protective sleeve and the connecting belt are arranged, the needle head protective sleeve and the fixing boss are fixed through the threads before infusion or during transportation of the infusion apparatus, the stability is stronger compared with a traditional sleeving mode, the sleeve continuously plays a role in protecting the needle tube, the problems that a packaging bag is punctured or the intravenous needle is polluted due to falling of the needle head protective sleeve are avoided, the through hole of the sleeve is inserted into the fixing column during infusion, the falling and the loss caused by taking the smaller size of the sleeve are avoided, and after the intravenous injection is finished, the needle head protective sleeve is reset to the position before use, so that the risk that the intravenous needle punctures a person after the infusion apparatus is used can be effectively avoided, and the use safety of the device is further improved.

Drawings

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

Fig. 2 is a schematic structural view of the intravenous needle site of the present invention before use.

Fig. 3 is a schematic structural view of the intravenous needle site of the present invention in use.

FIG. 4 is an enlarged view of portion A of FIG. 3 according to the present invention.

Fig. 5 is a schematic view of a needle shield of the present invention.

Fig. 6 is a schematic cross-sectional view of a needle shield of the present invention.

Fig. 7 is a schematic view of a connecting band of the present invention.

The reference signs are: the infusion set comprises an infusion hose 1, a liquid medicine filter 2, a flow rate regulator 3, a drip cup 4, a bottle stopper puncture outfit 5, an air filter 6, a sealing clamp 7, a vein needle 8, a needle tube 81, a connecting tube 82, a handheld piece 83, a fixed boss 84, a needle head protective sleeve 9, a sleeve 91, a limit boss 92, a through hole 93, a limit convex strip 94, a connecting band 10, a main body band 101, a first connecting ring 102, a second connecting ring 103 and a fixing column 104.

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.

The invention provides a precise filtering infusion apparatus with an integrated venous infusion needle protective sleeve, which comprises an infusion hose 1, a liquid medicine filter 2, a flow speed regulator 3, a drip cup 4, a bottle stopper puncture outfit 5 and an air filter 6, wherein the liquid medicine filter 2, the flow speed regulator 3, the drip cup 4, the bottle stopper puncture outfit 5 and the air filter 6 are fixedly arranged at different positions of the infusion hose 1 in an aligned mode, a sealing clamp 7 is arranged between the drip cup 4 and the bottle stopper puncture outfit 5, one end, far away from the bottle stopper puncture outfit 5, of the infusion hose 1 is fixedly provided with a venous needle 8, a needle head protective sleeve 9 is arranged outside the venous needle 8, and a connecting belt 10 is arranged between the needle head protective sleeve 9 and the infusion hose 1;

the intravenous needle 8 comprises a needle tube 81, a connecting tube 82 is arranged between one end of the needle tube 81 far away from the needle point and the infusion hose 1, a handheld piece 83 is fixedly arranged on one side of the outer wall of the connecting tube 82, a fixing boss 84 is fixedly arranged at one end of the connecting tube 82 close to the needle tube 81, and threads are arranged on the outer wall of the fixing boss 84;

the needle head protective sleeve 9 comprises a sleeve 91, a limiting boss 92 is fixedly arranged on one side of the outer wall of the sleeve 91, a through hole 93 is formed in one end of the sleeve 91, threads are arranged in the through hole 93, and a plurality of limiting convex strips 94 are uniformly arranged on the inner wall of the sleeve 91 at positions corresponding to the limiting bosses 92;

the connecting belt 10 includes a main belt 101, a first connecting ring 102 is fixedly disposed at one end of the main belt 101, a second connecting ring 103 is fixedly disposed at the other end of the main belt 101, and a fixing column 104 is fixedly disposed at one side of the second connecting ring 103.

The connecting pipe 82, the handheld piece 83 and the fixed boss 84 are integrally formed, so that a medical worker can conveniently prick the vein needle 8 through the position of the handheld piece 83, the outer diameter of the fixed boss 84 is matched with the inner diameter of the through hole 93, the sleeve 91 is in threaded connection with the fixed boss 84 through threads, the accidental falling of the needle head protective sleeve 9 caused by factors such as shaking is avoided in a threaded connection mode, the distance between the two limit convex strips 94 which are circularly and symmetrically distributed in the inner cavity of the sleeve 91 is equal to the outer diameter of the needle pipe 81, the inner diameter of the sleeve 91 is equal to the outer diameter of the fixed column 104, the relative position stability when the needle pipe 81 and the fixed column 104 are inserted into the sleeve 91 can be ensured, the limit boss 92 and the sleeve 91 are integrally formed, the limit boss 92 comprises an upper limit column and a lower connecting column, the outer diameter of the lower connecting column is smaller than the inner diameter, both guaranteed that spacing boss 92 is injectd to the position of first go-between 102, can guarantee again that first go-between 102 rotates at the position of spacing boss 92 position, second go-between 103 internal diameter equals with infusion hose 1 external diameter, makes things convenient for medical personnel to adjust the relative position of second go-between 103 at infusion hose 1, and can not cause infusion hose 1 to receive the deformation that the extrusion caused, sealing clamp 7 both ends all are equipped with the through wires hole, the through wires hole internal diameter equals with infusion hose 1 external diameter, can install sealing clamp 7 on infusion hose 1 and do not influence the normal confession liquid of infusion hose 1, first go-between 102 rotates along spacing boss 92 to be connected, avoids leading to the fact sleeve pipe 91 and fixed boss 84 position to revolve round because of main part area 101 follows the rotation production reaction force when rotating sleeve pipe 91.

As shown in fig. 1 to 6, the embodiment specifically is as follows: before infusion or during infusion device transportation, the stability of the sleeve joint mode is stronger than that of the traditional sleeve joint mode through the thread fixation between the needle head protective sleeve 9 and the fixed lug boss 84, the falling-off of the needle head protective sleeve 9 and the vein needle 8 caused by factors such as shaking and the like in the transportation process can be effectively avoided, the sleeve 91 continuously plays the protection effect on the needle tube 81, when in infusion, after a medical staff connects the infusion hose 1 with an infusion bottle through the bottle plug puncture outfit 5, the sleeve 91 is rotated to separate the infusion hose 1 from the vein needle 8, then the through hole 93 of the sleeve 91 is inserted into the fixed column 104, after the needle tube 81 is inserted into the human body vein, the medical adhesive tape is used to be fixed to the vein injection position together with part of the infusion hose 1 and the main body belt 101, the hanging of the main body belt 101 and clothes, zippers and the like caused by body position rotation in the vein injection process is avoided, and, the position of the sleeve 91 can be limited by the main body belt 101, the dropping and loss caused by the small taking of the sleeve 91 can be avoided, after the vein injection work is finished, a user pulls the sleeve 91 and the fixing column 104 away, the needle tube 81 is accommodated into the inner cavity of the sleeve 91 along the position of the through hole 93, the limit convex strip 94 can ensure that the direction of the needle tube 81 when being inserted is determined, the situation that the needle protecting sleeve 9 is punctured due to the forceful inclination when the needle tube 81 is inserted into the sleeve 91 can be avoided, then the sleeve 91 is rotated to be fixed to the position of the connecting tube 82, the first connecting ring 102 can rotate around the limit boss 92 during the period, the knotting and the stressing of the main body belt 101 can be avoided, the falling problem caused by the rotating reaction force of the main body belt 101 after the positions of the vein needle 8 and the needle protecting sleeve 9 are fixed can be effectively prevented, and the infusion hose 1 at one end of the bottle plug puncture device 5, the residual liquid medicine in the transfusion hose 1 and the drip cup 4 can be prevented from being scattered, the used transfusion device can be stored in a centralized way, and the risk that the precision transfusion device punctures a person by the vein needle 8 after vein transfusion is effectively avoided.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. The utility model provides a take microfiltration transfusion system of disjunctor formula venous transfusion needle protective sheath, includes infusion hose (1), liquid medicine filter (2), velocity of flow regulator (3), drips kettle (4), bottle plug puncture ware (5) and air cleaner (6), liquid medicine filter (2), velocity of flow regulator (3), drip kettle (4), bottle plug puncture ware (5) and air cleaner (6) are all counterpointed fixedly and are set up in infusion hose (1) different positions, its characterized in that: a sealing clamp (7) is arranged between the drip cup (4) and the bottle stopper puncture device (5), one end, far away from the bottle stopper puncture device (5), of the infusion hose (1) is fixedly provided with a vein needle (8), a needle head protective sleeve (9) is arranged outside the vein needle (8), and a connecting belt (10) is arranged between the needle head protective sleeve (9) and the infusion hose (1);

the intravenous needle (8) comprises a needle tube (81), a connecting tube (82) is arranged between one end, far away from the needle point, of the needle tube (81) and the infusion hose (1), a handheld piece (83) is fixedly arranged on one side of the outer wall of the connecting tube (82), a fixing boss (84) is fixedly arranged at one end, close to the needle tube (81), of the connecting tube (82), and threads are arranged on the outer wall of the fixing boss (84);

the needle head protective sleeve (9) comprises a sleeve (91), a limiting boss (92) is fixedly arranged on one side of the outer wall of the sleeve (91), a through hole (93) is formed in one end of the sleeve (91), threads are arranged in the through hole (93), and a plurality of limiting convex strips (94) are uniformly arranged on the inner wall of the sleeve (91) at positions corresponding to the limiting boss (92);

the connecting belt (10) comprises a main belt (101), a first connecting ring (102) is fixedly arranged at one end of the main belt (101), a second connecting ring (103) is fixedly arranged at the other end of the main belt (101), and a fixing column (104) is fixedly arranged on one side of the second connecting ring (103).

2. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: the connecting pipe (82), the handheld piece (83) and the fixing boss (84) are integrally formed.

3. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: the outer diameter of the fixed boss (84) is matched with the inner diameter of the through hole (93), and the sleeve (91) is in threaded connection with the fixed boss (84) through threads.

4. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: the distance between two limiting convex strips (94) which are circularly and symmetrically distributed in the inner cavity of the sleeve (91) is equal to the outer diameter of the needle tube (81), and the inner diameter of the sleeve (91) is equal to the outer diameter of the fixing column (104).

5. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: spacing boss (92) and sleeve pipe (91) integrated into one piece, spacing boss (92) are including last spacing post and lower spliced pole, lower spliced pole external diameter is less than first connecting ring (102) internal diameter, it is greater than first connecting ring (102) internal diameter to go up spacing post external diameter.

6. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: the inner diameter of the second connecting ring (103) is equal to the outer diameter of the infusion hose (1).

7. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: both ends of the sealing clamp (7) are provided with threading holes, and the inner diameter of each threading hole is equal to the outer diameter of the infusion hose (1).

8. The precise filtering infusion set with the integrated intravenous infusion needle protection sleeve according to claim 1, is characterized in that: the first connecting ring (102) is rotatably connected along the limiting boss (92).

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