CN114904089B

CN114904089B - TPE secondary filter transfusion system

Info

Publication number: CN114904089B
Application number: CN202210508270.8A
Authority: CN
Inventors: 魏金金; 曹新民; 夏小荣
Original assignee: Yingtan Rongjia Group Medical Equipment Industrial Co ltd
Current assignee: Yingtan Rongjia Group Medical Equipment Industrial Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2023-04-14
Anticipated expiration: 2042-05-10
Also published as: CN114904089A

Abstract

The invention provides a TPE (thermoplastic elastomer) precise filtering infusion set which comprises a main pipe, a top plate, a clamping plate and a purifying cylinder, wherein a connecting pipe is hermetically inserted into the outer wall of the top of the main pipe, the purifying cylinder is hermetically sealed and connected to the outer wall of the top of the connecting pipe, a purifying mechanism is arranged on the inner wall of the circumference of the purifying cylinder, a flow dividing pipe is hermetically inserted into the outer wall of the top of the purifying cylinder, the top plate is hermetically inserted between the outer walls of the top of the flow dividing pipe, a supporting column is fixedly connected to the middle position of the outer wall of the top plate, a supporting plate is fixedly connected to the outer wall of the top of the supporting plate, a top table is fixedly connected to the outer wall of the top of the supporting plate, and a limiting mechanism is arranged on the outer wall of the top table. The number of the insertion thorns is two, so that the device can be inserted into different infusion bottles at the same time, different infusion requirements are met, the solution can be fully filtered and purified, the adsorption plate can be replaced, and the device is simpler and more convenient to use and higher in practicability.

Description

TPE secondary filter transfusion system

Technical Field

The invention relates to the technical field of disposable infusion sets, in particular to a TPE (thermoplastic elastomer) precise filtering infusion set.

Background

A disposable infusion apparatus is a common medical consumable, a channel between a vein and liquid medicine is established through aseptic processing, the disposable infusion apparatus is used for intravenous infusion, and generally consists of eight parts, namely a vein needle or an injection needle, a needle head protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a drip cup, a bottle plug puncture outfit, an air filter and the like which are connected, and the partial infusion apparatus also comprises an injection piece, a medicine adding port and the like.

Through retrieval, the existing disposable infusion apparatus cannot effectively filter the solution in the using process, so that the solution may be doped with particles which cannot be completely melted and mixed, and certain danger is caused to patients, and the requirement on the used medicine is high.

Aiming at the problem that the solution can not be filtered in the prior art; therefore, the TPE precise filtering infusion set is provided.

Disclosure of Invention

Accordingly, embodiments of the present invention are directed to a TPE precision filtration infusion set, which solves or alleviates the technical problems of the prior art, and provides at least one useful choice.

The technical scheme of the embodiment of the invention is realized as follows: the device comprises a main pipe, a top plate, a clamping plate and a purifying barrel, wherein the top outer wall of the main pipe is hermetically spliced with a connecting pipe, the purifying barrel is hermetically spliced with the top outer wall of the connecting pipe, the circumferential inner wall of the purifying barrel is provided with a purifying mechanism, the top outer wall of the purifying barrel is hermetically spliced with a flow dividing pipe, the top outer wall of the flow dividing pipe is hermetically spliced with the top plate, the middle position of the top outer wall of the top plate is fixedly connected with a supporting column, the top outer wall of the supporting column is fixedly connected with a supporting plate, the top outer wall of the supporting plate is fixedly connected with a top table, the top outer wall of the top table is provided with a limiting mechanism, the top two end outer walls of the supporting plate are respectively provided with a current limiting mechanism, the top two end outer walls of the top plate are respectively hermetically spliced with a butt joint pipe, the supporting plate is sleeved on the circumferential outer wall of the butt joint pipe, and the top outer wall of the clamping plate is respectively connected with a sealing sleeve of the butt joint pipe, the top outer wall of cardboard all pegs graft there is the interlude thorn, the one end outer wall that the through-hole cardboard was all opened to one side outer wall of interlude thorn all is provided with the mechanism of admitting air, the circumference outer wall of being responsible for is provided with the mark structure, when using this device, because the number of interlude thorn is two, consequently, can insert the device in different infusion bottles simultaneously, and in one of them interlude thorn and when taking over normal work, carry out the current-limiting to another butt joint pipe through the current-limiting mechanism, can realize accomplishing the back at one of them bottle solution infusion, need not to extract the thorn, only need open the effect that current-limiting mechanism can realize the infusion, thereby the possibility that the thorn is infected with impurity under the condition with air contact has been reduced to the interlude thorn, patient's protecting effect has been strengthened, and it is more convenient to operate, different infusion demands have been guaranteed, high practicability.

As a further arrangement of the infusion bottle, the air inlet mechanism comprises an air inlet pipe, the air inlet pipe is fixedly connected to the outer wall of one end of the clamping plate respectively, one end of the air inlet pipe is communicated with the outer wall of the bottom of the interpenetration thorn, the outer wall of the other end of the air inlet pipe is fixedly connected with the intercepting cylinder, when the interpenetration thorn is inserted into the infusion bottle for infusion, the air pressure inside and outside the infusion bottle is stable, the solution backflow in the infusion process is prevented, the intercepting cylinder can filter air entering the air inlet pipe, and the solution purifying and filtering effects are enhanced.

As a further arrangement of the invention, the limiting mechanism comprises two top blocks, the top blocks are respectively and fixedly connected with the outer walls of the two ends of the top platform, the outer wall of one end of each top block is respectively and fixedly connected with a lantern ring, the lantern rings are respectively sleeved on the outer walls of the circumferences of the butt joint pipes, and the top blocks and the lantern rings can limit the butt joint pipes so as to prevent unstable flow limiting caused by movement of the butt joint pipes in the process of infusion.

As a further arrangement of the invention, the flow limiting mechanism comprises a plurality of brackets, the brackets are respectively and fixedly connected with the outer walls of two sides of the top of the supporting plate, the outer wall of one side of each bracket is provided with a limiting groove, a flow limiting cylinder is inserted between the inner walls of the opposite sides of the brackets, the outer walls of two sides of the flow limiting cylinder are respectively and fixedly connected with a limiting block inserted into the limiting groove, and through the flow limiting cylinder capable of moving up and down, when the flow limiting cylinder moves down along the inclined bracket, the extrusion force between the flow limiting cylinder and the butt-joint pipe can be gradually enhanced, so that the flow control effect on the butt-joint pipe is realized, and the operation is more convenient.

As a further arrangement of the invention, the purification mechanism comprises an adsorption plate, an inner groove is formed in the outer wall of one side of the purification cylinder, the adsorption plate is inserted into the inner circumferential wall of the inner groove, a plug cylinder is inserted into the outer circumferential wall of one side of the purification cylinder in a sealing manner, a rotating plate is fixedly connected to the outer wall of the other side of the plug cylinder, an outer cylinder is fixedly connected to the outer circumferential wall of one side of the rotating plate, the outer cylinder is fixedly connected to the outer circumferential wall of the purification cylinder, and a plurality of convex rods which are distributed equidistantly are fixedly connected between the outer cylinder and the outer circumferential wall of the rotating plate.

As a further arrangement of the invention, the marking structure comprises a plurality of marking lines which are distributed equidistantly, the marking lines are all bonded on the circumferential outer wall of the main pipe, the liquid level of the main pipe can be accurately judged through the plurality of marking lines, and the safety in the infusion process at two ends is improved.

As a further arrangement of the invention, a plurality of fixing holes are distributed at equal intervals between the top and bottom outer walls of the top plate, and the main pipe, the connecting pipe, the shunt pipe and the butt joint pipe are all made of polyolefin thermoplastic elastomer materials.

As a further arrangement of the invention, the flow limiting mechanism comprises a plurality of side plates, the side plates are respectively and fixedly connected with the outer walls of the two sides of the two ends of the top platform, a fixing plate is fixedly connected between the outer walls of the other ends of the side plates, and threaded rods are inserted between the outer walls of the two ends of the fixing plate through threads. The both ends outer wall of threaded rod rotates through the bearing respectively and is connected with stripper plate and fixedly connected with handle, the one end outer wall of stripper plate all bonds and has the guard plate, the guard plate is the hard rubber material, when needs carry out the current-limiting to the takeover, it is rotatory to drive the threaded rod through rotating the handle, can drive the guard plate through the removal of stripper plate and press from both sides tightly to the takeover, thereby realized the current-limiting effect to the takeover, and this kind of mode can reduce the unstable condition of current-limiting and take place, the security and the stability in use of device have been increased, and increased the protection effect to the takeover.

Due to the adoption of the technical scheme, the embodiment of the invention has the following advantages:

1. a TPE (thermoplastic elastomer) precise filtration infusion set adopts a polyolefin thermoplastic elastomer and does not contain a plasticizer DEHP, so that potential risks of liver injury and embryo toxicity in the DEHP are effectively eliminated; the automatic air exhaust and liquid stop functions are realized, and the labor intensity of medical workers is reduced; when using this device, because the number that alternates the thorn is two, consequently can insert the device in the infusion bottle of difference simultaneously, and alternate the thorn and when taking over normal work at one of them, carry out the current-limiting to another butt joint pipe through current-limiting mechanism, can realize accomplishing the back at one of them bottle solution infusion, need not to extract and alternate the thorn, only need open current-limiting mechanism can realize the effect of infusion, thereby reduced and alternate the thorn and be infected with the possibility of impurity under the condition with air contact, the protection effect to patient has been strengthened, and it is more convenient to operate, different infusion demands have been guaranteed, therefore, the practicality is stronger.

2. The utility model provides a TPE secondary filter transfusion system, when solution when flowing into in purifying the section of thick bamboo, the adsorption plate can adsorb the interception with impurity or large granule that probably appear in the solution, has realized the filter effect to solution to when the infusion bottle of cooperation difference uses, the particulate matter variation in probably solution, and accessible rotor plate will be filled in a section of thick bamboo and demolish from purifying the section of thick bamboo this moment, thereby realized the change to the adsorption plate, it is more simple and convenient to use, and the practicality is stronger.

3. The utility model provides a TPE secondary filter transfusion system, when needs carry out the current-limiting to the takeover, drives the threaded rod rotation through rotating the handle, can drive the guard plate through the removal of stripper plate and press from both sides tightly the takeover to realized the current-limiting effect to the takeover, and this kind of mode can reduce the unstable condition of current-limiting and take place, increased the security and the stability in use of device, and increased the protection effect to the takeover.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a view of the construction of the support plate of the present invention;

FIG. 3 is a schematic view of a flow restrictor cartridge of the present invention;

FIG. 4 is an enlarged structural view taken at the point A in FIG. 1;

FIG. 5 is a view showing the structure of an adsorption plate according to the present invention;

fig. 6 is a view showing the structure of the extrusion plate of the present invention.

Reference numerals are as follows:

1. a main tube; 2. a connecting pipe; 3. a rotating plate; 4. a shunt tube; 5. a top plate; 6. a support plate; 7. a support; 8. butt-joint pipes; 9. an air inlet pipe; 10. an intercepting cylinder; 11. clamping a plate; 12. inserting and puncturing; 13. a top stage; 14. a support pillar; 15. a limiting block; 16. a limiting groove; 17. a top block; 18. a collar; 19. a flow-limiting cylinder; 20. marking a line; 21. a nose bar; 22. an outer cylinder; 23. a plug cylinder; 24. a purification cartridge; 25. an adsorption plate; 26. a side plate; 27. a protection plate; 28. a pressing plate; 29. a fixing plate; 30. a handle; 31. a threaded rod.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-5, a TPE precise filtration infusion apparatus comprises a main pipe 1, a top plate 5, a clamping plate 11 and a purifying cylinder 24, wherein a connecting pipe 2 is inserted in the top outer wall of the main pipe 1 in a sealing manner, the purifying cylinder 24 is sleeved on the top outer wall of the connecting pipe 2 in a sealing manner, a purifying mechanism is arranged on the circumferential inner wall of the purifying cylinder 24, a shunt pipe 4 is inserted in the top outer wall of the purifying cylinder 24 in a sealing manner, the top plate 5 is inserted between the top outer walls of the shunt pipe 4 in a sealing manner, a support column 14 is connected to the middle position of the top outer wall of the top plate 5 through a bolt, a support plate 6 is connected to the top outer wall of the support column 14 through a bolt, a top table 13 is connected to the top outer wall of the support plate 6 through a bolt, and a limiting mechanism is arranged on the top outer wall of the top table 13, the outer walls of two ends of the top of the supporting plate 6 are respectively provided with a current limiting mechanism, the outer walls of two ends of the top plate 5 are respectively and hermetically inserted with a butt joint pipe 8, the supporting plate 6 is sleeved on the outer wall of the circumference of the butt joint pipe 8, the outer wall of the top of the butt joint pipe 8 is respectively and hermetically connected with a clamping plate 11 in a sealing manner, the outer wall of the top of the clamping plate 11 is respectively inserted with an inserting spine 12, the outer wall of one end, provided with a through hole clamping plate 11, of each inserting spine 12 is provided with an air inlet mechanism, and the outer wall of the circumference of the main pipe 1 is provided with a marking structure; carry out the current-limiting to another butt joint pipe 8 through current-limiting mechanism, can realize accomplishing the back in one of them bottle of solution infusion, need not to extract and alternate thorn 12, only need open current-limiting mechanism can realize the effect of infusion to reduced and alternate thorn 12 and be infected with the possibility of impurity under the condition with the air contact, strengthened the protection effect to patient, and it is more convenient to operate, guaranteed different infusion demands, the practicality is stronger.

Referring to fig. 1, the air inlet mechanism comprises an air inlet pipe 9, the air inlet pipe 9 is welded on the outer wall of one end of a clamping plate 11 respectively, one end of the air inlet pipe 9 is communicated with the outer wall of the bottom of an insertion spine 12, the outer wall of the other end of the air inlet pipe 9 is connected with an intercepting cylinder 10 through a bolt, and the air inlet pipe 9 can be used for infusion when the insertion spine 12 is positioned in an infusion bottle; the air pressure inside and outside the infusion bottle is stable, the solution backflow condition in the infusion process is prevented, the intercepting cylinder 10 can filter air entering the air inlet pipe 9, and the solution purification and filtration effect is enhanced.

Referring to fig. 1, the limiting mechanism comprises two ejector blocks 17, the ejector blocks 17 are respectively welded to the outer walls of the two ends of the top of the ejector platform 13, the outer wall of one end of each ejector block 17 is connected with a lantern ring 18 through a bolt, and the lantern rings 18 are respectively sleeved on the outer walls of the circumferences of the butt-joint pipes 8; the top block 17 and the collar 18 can limit the adapter tube 8, so as to prevent unstable flow restriction caused by movement of the adapter tube 8 in the process of infusion.

Referring to fig. 2, the current limiting mechanism comprises a plurality of brackets 7, the brackets 7 are respectively connected to the outer walls of two sides of the top of the supporting plate 6 through bolts, the outer wall of one side of each bracket 7 is provided with a limiting groove 16, a current limiting cylinder 19 is inserted between the inner walls of the opposite sides of the brackets 7, and the outer walls of two sides of each current limiting cylinder 19 are welded with limiting blocks 15 inserted into the limiting grooves 16; through the flow limiting cylinder 19 capable of moving up and down, when the flow limiting cylinder 19 moves down along the inclined bracket 7, the extrusion force between the flow limiting cylinder and the butt joint pipe 8 can be gradually enhanced, so that the flow control effect of the butt joint pipe 8 is realized, and the operation is more convenient.

Referring to fig. 4, the purification mechanism includes an adsorption plate 25, an inner groove is formed in an outer wall of one side of the purification cylinder 24, the adsorption plate 25 is inserted into a circumferential inner wall of the inner groove, a plug cylinder 23 is inserted into an outer wall of one side of the purification cylinder 24 in a sealing manner, the outer wall of the other side of the plug cylinder 23 is connected with the rotation plate 3 through bolts, an outer cylinder 22 is connected to a circular outer wall of one side of the rotation plate 3 through bolts, the outer cylinder 22 is connected to the circumferential outer wall of the purification cylinder 24 through bolts, and a plurality of convex rods 21 are connected between the outer cylinder 22 and the circumferential outer wall of the rotation plate 3 through bolts;

when solution when flowing into purification section of thick bamboo 24 in, adsorption plate 25 can adsorb the interception with impurity or large granule that probably appear in the solution, has realized the filter effect to solution to when the infusion bottle of cooperation difference is used, probably the particulate matter in the solution is the variation in size, and accessible rotor plate 3 demolishs stopper section of thick bamboo 23 from purification section of thick bamboo 24 this moment, thereby has realized the change to adsorption plate 25, and it is more simple and convenient to use, and the practicality is stronger.

Referring to fig. 3, the marking structure includes a plurality of marking lines 20 equidistantly distributed, and the marking lines 20 are all bonded to the circumferential outer wall of the main pipe 1; the liquid level of the main pipe 1 can be accurately judged through the arranged plurality of marking lines 20, and the safety in the process of infusion at two ends is improved.

Referring to fig. 1, a plurality of fixing holes are equidistantly distributed between the top and bottom outer walls of a top plate 5, and a main pipe 1, a connecting pipe 2, a shunt pipe 4 and a butt joint pipe 8 are all made of polyolefin thermoplastic elastomer materials; the device connecting group price of the polyolefin thermoplastic elastomer material effectively prevents potential risks of liver damage and embryotoxicity in DEHP in the using process of the device, enhances the protection effect on patients and is safer to use.

In this embodiment: when using this device, because the number that alternates thorn 12 is two, consequently can insert the device in the infusion bottle of difference simultaneously, and alternate thorn 12 and to manage 8 normal during operation at one of them, carry out the current-limiting to another butt joint pipe 8 through the current-limiting mechanism, can realize accomplishing the back at one of them bottle solution infusion, need not to extract and alternate thorn 12, only need open the effect that current-limiting mechanism can realize the infusion, thereby reduced and alternated thorn 12 and be infected with the possibility of impurity under the condition with the air contact, patient's protection effect has been strengthened, and it is more convenient to operate, the infusion demand of difference has been guaranteed, therefore, the practicality is stronger.

Example 2:

the utility model provides a TPE secondary filter transfusion system, this embodiment makes following improvement on embodiment 1's basis, as shown in fig. 6, and current-limiting mechanism includes a plurality of curb plates 26, and curb plate 26 respectively through bolted connection in the both ends both sides outer wall of footstock 13, all has fixed plate 29 through bolted connection between the other end outer wall of curb plate 26, all pegs graft threaded rod 31 through the screw thread between the both ends outer wall of fixed plate 29. The both ends outer wall of threaded rod 31 rotates through the bearing respectively and is connected with stripper plate 28 and has handle 30 through bolted connection, the one end outer wall of stripper plate 28 all bonds there is guard plate 27, guard plate 27 is the hard rubber material, when needs are to taking over 8 current-limiting, it is rotatory to drive threaded rod 31 through rotating handle 30, can drive guard plate 27 through the removal of stripper plate 28 and press from both sides tightly taking over 8, thereby realized taking over 8 the current-limiting effect to the current-limiting, and this kind of mode can reduce the unstable condition of current-limiting and take place, the security and the stability in use of device have been increased, and the protection effect to taking over 8 has been increased.

When the device works, when the flow limitation needs to be carried out on the connection pipe 8, the handle 30 is rotated to drive the threaded rod 31 to rotate, the protection plate 27 can be driven to clamp the connection pipe 8 through the movement of the extrusion plate 28, and therefore the flow limitation effect on the connection pipe 8 is achieved, the situation of unstable flow limitation can be reduced, the safety and the use stability of the device are improved, and the protection effect on the connection pipe 8 is improved.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a TPE secondary filter transfusion system, is including being responsible for (1), roof (5), cardboard (11) and purifying cylinder (24), its characterized in that: the top outer wall of the main pipe (1) is hermetically spliced with a connecting pipe (2), a purifying cylinder (24) is hermetically sleeved on the top outer wall of the connecting pipe (2), the circumferential inner wall of the purifying cylinder (24) is provided with a purifying mechanism, the top outer wall of the purifying cylinder (24) is hermetically spliced with a shunt pipe (4), a top plate (5) is hermetically spliced between the top outer walls of the shunt pipes (4), the middle position of the top outer wall of the top plate (5) is fixedly connected with a support column (14), the top outer wall of the support column (14) is fixedly connected with a support plate (6), the top outer wall of the support plate (6) is fixedly connected with a top table (13), and the top outer wall of the top table (13) is provided with a limiting mechanism, the outer walls of two ends of the top of the supporting plate (6) are respectively provided with a current limiting mechanism, the outer walls of two ends of the top plate (5) are respectively sealed and spliced with a butt joint pipe (8), the supporting plate (6) is sleeved on the outer wall of the circumference of the butt joint pipe (8), the outer wall of the top of the butt joint pipe (8) is hermetically sleeved with a clamping plate (11), the outer wall of the top of the clamping plate (11) is spliced with an inserting thorn (12), the outer wall of one end of one side of the inserting thorn (12) which is provided with a through hole clamping plate (11) is respectively provided with an air inlet mechanism, the outer wall of the circumference of the main pipe (1) is provided with a marking structure, the air inlet mechanism comprises an air inlet pipe (9), and the air inlet pipes (9) are respectively and fixedly connected to the outer wall of one end of the clamping plate (11), one end of an air inlet pipe (9) is communicated with the outer wall of the bottom of the interpenetration thorn (12), the outer wall of the other end of the air inlet pipe (9) is fixedly connected with an intercepting barrel (10), the limiting mechanism comprises two ejector blocks (17), the ejector blocks (17) are respectively and fixedly connected with the outer walls of the two ends of the top of the ejector table (13), the outer wall of one end of each ejector block (17) is fixedly connected with a lantern ring (18), the lantern rings (18) are respectively sleeved on the outer wall of the circumference of the butt joint pipe (8), the purifying mechanism comprises an adsorption plate (25), an inner groove is formed in the outer wall of one side of the purifying barrel (24), the adsorption plate (25) is inserted in the inner wall of the circumference of the inner groove, a plug barrel (23) is hermetically inserted in the outer wall of one side of the purifying barrel (24), a rotating plate (3) is fixedly connected with a rotating plate (3) in the outer wall of the other side of the rotating plate (3), an outer barrel (22) is fixedly connected with an outer barrel (24) in the outer wall of the circumference, a plurality of convex rods (21) which are distributed at equal intervals are fixedly connected between the outer wall of the outer barrel (22) and a plurality of flow limiting mechanisms (7), two outer walls of the supporting plates (7) are respectively connected with a plurality of flow limiting brackets (7), and two sides of flow limiting brackets (7) are respectively connected with two sides of supporting plates (7), the outer walls of the two sides of the flow limiting cylinder (19) are fixedly connected with limiting blocks (15) inserted into the limiting grooves (16); or the flow limiting mechanism comprises a plurality of side plates (26), the side plates (26) are respectively and fixedly connected with the outer walls of the two sides of the two ends of the top platform (13), a fixing plate (29) is fixedly connected between the outer walls of the other ends of the side plates (26), and threaded rods (31) are inserted between the outer walls of the two ends of the fixing plate (29) through threads; the outer wall of the two ends of the threaded rod (31) is respectively connected with an extrusion plate (28) and a fixedly connected handle (30) through a bearing in a rotating mode, the outer wall of one end of the extrusion plate (28) is bonded with a protection plate (27), and the protection plate (27) is made of hard rubber.

2. The TPE precision filtration infusion set according to claim 1, wherein: the marking structure comprises a plurality of marking lines (20) which are distributed equidistantly, and the marking lines (20) are all bonded on the circumferential outer wall of the main pipe (1).

3. The TPE precision filtration infusion set as claimed in claim 2, wherein: a plurality of fixing holes are formed between the outer walls of the top and the bottom of the top plate (5) in an equidistant distribution mode, and the main pipe (1), the connecting pipe (2), the shunt pipe (4) and the butt joint pipe (8) are all made of polyolefin thermoplastic elastomer materials.