WO2021082267A1

WO2021082267A1 - Straight cylinder-type pipe liquid extractor and liquid extraction method

Info

Publication number: WO2021082267A1
Application number: PCT/CN2019/129911
Authority: WO
Inventors: 梅埃尔霍夫·甘特; 科佩茨基·罗伯特; 何俊
Original assignee: 武汉佰科宏成生物科技有限公司
Priority date: 2019-10-29
Filing date: 2019-12-30
Publication date: 2021-05-06
Also published as: CN110742804A

Abstract

A straight cylinder-type pipe liquid extractor and a liquid extraction method therefor, the liquid extractor comprising: a main body (1), a piercing and draining part (2), a syringe part (3) and a blood bag pipe carrying part (4), wherein the interior of the main body (1) is hollow, the piercing and draining part (2) is disposed at one end of the main body (1) and can slide relative to the main body (1), the syringe part (3) is fixedly disposed on the other end of the main body (1), the blood bag pipe carrying part (4) is movably arranged at the inner part of the main body (1), the piercing and draining part (2) is provided with a first piercing needle (23), and the syringe part (3) is provided with a second piercing needle (32). The liquid extraction method using the liquid extractor comprises the following steps: S1, fixing a blood bag pipe containing liquid to be extracted; S2, piercing two ends of the blood bag pipe; S3, blowing air into the blood bag pipe from one end of the blood bag pipe; and S4, the liquid flows out from the other end of the blood bag pipe.

Description

Straight cylinder type pipeline liquid extractor and liquid extracting method

Technical field

The invention relates to the technical field of blood component dispensing technology, in particular to a straight-tube type pipeline liquid extractor and a liquid extracting method.

Background technique

In recent years, there has been a bioremediation treatment of severe xerophthalmia through autologous serum extracted from whole blood. Autologous serum contains self-rich active polypeptide small molecule repair factors and adhesion proteins, which can effectively activate the re-secretion of the lacrimal gland, repair the function of the lacrimal gland, and greatly alleviate the symptoms of xerophthalmia-red eyes, foreign body sensation in the eyes, dry eyes, to achieve relief and The purpose of curing xerophthalmia. At the same time, due to the application of autologous serum, there is no rejection, no allergic reaction, no toxic side effects, and 100% safety. It is a new biological therapy for the treatment of xerophthalmia with an incidence of more than 20%.

When the autologous serum is produced, it is encapsulated in a small segmented blood bag tube. The autologous serum in the tube is a one-time use, and the autologous serum in the tube must be taken out before use.

However, due to the thinness of the reagent itself, the traditional method is to cut one end of the blood bag tube, but there are the following problems: 1. Autologous serum is prone to overflow after cutting, resulting in a waste of autologous serum; 2. General users are cutting When opening the blood bag tube, you will not pay special attention to the disinfection of the scissors. As a result, the autologous serum will be contaminated when the blood bag tube is cut. 3 The serum in the tube cannot be accurately dripped into the eyes due to lack of positioning.

Summary of the invention

The purpose of the present invention is to provide a disposable straight-tube type pipeline liquid extractor and a liquid extraction method using the straight-tube type pipeline liquid extractor to solve the above-mentioned problems.

The technical solution adopted by the present invention is: a straight tube type liquid extractor for pipes, comprising: a main body, a piercing and draining part, a syringe part, and a blood bag tube carrying part, the body is hollow, and the piercing and draining part Is arranged on one end of the main body and is slidable relative to the main body, the syringe portion is fixedly arranged on the other end of the main body, the blood bag tube bearing portion is movably arranged inside the main body, and the thorn The piercing and draining portion is provided with a first piercing needle, the barrel portion is provided with a second piercing needle, and when the piercing and draining portion moves along the main body to a certain state, the piercing and draining portion Abut against one end of the blood bag tube bearing part, and push the other end of the blood bag tube bearing part to abut against the syringe part, the piercing drainage part and the syringe part respectively pierce the At both ends of the blood bag tube carried on the blood bag tube carrying part, the syringe part can blow air into the blood bag tube to discharge the liquid in the blood bag tube from the puncture drainage part.

A liquid extraction method based on a straight-tube type pipeline liquid extractor includes the following steps:

S1. Fix the blood pipe with the liquid to be taken out,

S2, pierce both ends of the blood pipe,

S3. Blow air into the blood bag tube from one end of the blood tube,

S4. The liquid to be taken out flows from the other end of the blood tube.

The effect of the present invention is that the straight tube type liquid extractor is provided with a piercing and draining part, a syringe part and a blood bag tube carrying part. The blood bag tube carrying part is used to carry the blood tube containing the liquid to be taken out. The piercing and draining part and the syringe part can respectively pierce both ends of the blood bag tube containing the liquid to be taken out. The syringe part blows air into the blood tube so that the liquid is discharged from the piercing and draining part. There will be no liquid overflow during the removal process, which will cause waste; the structure of the equipment is simple, and the operation is also very simple; there will be no excessive economic burden for one-time use; thus avoiding the situation of liquid pollution caused by reuse.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a straight-tube type pipeline liquid extractor provided by the present invention;

Figure 2 is a schematic structural view of a certain state of the straight-tube type pipeline liquid extractor provided by the present invention;

Figure 3 is a schematic structural view of a certain state of the straight-tube type pipeline liquid extractor provided by the present invention;

Fig. 4 is a schematic cross-sectional view of the blood bag tube carrying part in Fig. 1.

Detailed ways

The straight-tube type pipeline liquid extractor of the present invention will be described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 4, a straight tube type liquid extractor provided by the present invention includes: a main body 1, a piercing and draining portion 2, a syringe portion 3, and a blood bag tube carrying portion 4. The main body 1 is hollow, the piercing and draining portion 2 is arranged on one end of the main body 1 and is slidable relative to the main body 1, and the syringe portion 3 is fixedly arranged on the other end of the main body 1, so The blood bag tube carrying part 4 is movably arranged inside the main body 1, and when the piercing and draining part 2 slides along the body 1 to a certain state, the piercing and draining part 2 and the blood bag tube One end of the carrying portion 4 abuts, and pushes the other end of the blood bag tube carrying portion 4 to abut the syringe portion 3. The puncture drainage portion 2 and the syringe portion 3 respectively pierce the blood At both ends of the blood bag pipe carried on the bag pipe carrying portion 4, the syringe portion 3 can blow air into the blood bag pipe to discharge the liquid in the blood bag pipe from the puncture drainage portion 2.

The blood bag tube carrying part 4 is used to carry the blood tube containing the liquid to be taken out.

The piercing and draining portion 2 is used to push the blood bag tube carrying part 4 to abut the syringe part 3 and puncture one end of the blood bag tube carried on the blood bag tube carrying part 4.

The syringe part 3 is used to pierce the other end of the blood bag tube carried on the blood bag tube carrying part 4 and blow air into the blood tube.

The main body 1 is a cylinder with open ends. For the convenience of description, the first end 11 of the main body 1 and the puncture drainage part 2 is fixed, and the main body 1 is fixed to the syringe part 3的为二端部12。 For the second end 12.

The first end portion 11 is provided with an abutment ring 111 protruding toward the inside of the main body 1.

The puncture drainage part 2 includes a tube body 21, a fixed disk 22, and a first puncture needle 23. The tube body 21 is a cylindrical body with two ends open, and the fixed disk 22 is fixed inside the tube body 21. The first puncture needle 23 is fixed on the fixed disk 22, and the thinner end of the first puncture needle 23 protrudes from the tube body 21 and faces the barrel portion 3.

The two ends of the first puncture needle 23 are provided with through holes and communicate with each other.

The outer diameter of the tube body 21 is the same as the inner diameter of the abutment ring 111, and both ends of the tube body 21 are respectively provided with a first abutment end 211 and a second abutment end 211 that can abut the abutment ring 111. Two abutting end 212.

When the tube body 21 extends into the inside of the main body 1 to the deepest state, the first abutting end 211 abuts against the abutting ring 111, and when the tube body 21 is in a part outside the main body 1 When the maximum state is reached, the two abutting ends 212 abut the abutting ring 111.

The syringe portion 3 includes a syringe tube 31, a second puncture needle 32, and a piston portion 33. The syringe tube 31 is a hollow tube with two ends closed. The syringe tube 31 and the second The end 12 is fixed, the second puncture needle 32 is arranged on the end of the syringe tube 31 close to the puncture drainage part 2 and communicates with the inside of the syringe tube 31, and the piston part 33 It is pierced at one end of the syringe tube 31 far away from the piercing and drainage part 2 and performs piston movement relative to the syringe tube 31.

The two ends of the second puncture needle 32 are provided with through holes and communicate with each other.

The piston portion 33 includes a push rod 331 and a rubber stopper 332. The push rod 331 penetrates the end of the syringe tube 31 away from the puncture drainage part 2 and is slidable relative to the syringe tube 31 The rubber plug 332 is disposed on an end of the push rod 331 located inside the syringe tube 31, and the rubber plug 332 abuts against the inner wall of the syringe tube 31.

The blood bag tube bearing portion 4 is movably arranged in the main body 1 and is located between the puncture and draining portion 2 and the syringe portion 3, and the blood bag tube bearing portion 4 is a tube with open ends. Body, a card inlet 41 is provided on the side wall of the blood bag tube carrying part 4, and the card inlet 41 is used for locking the blood bag tube containing the liquid to be taken out.

In this embodiment, when the straight tube liquid extractor is remanufactured, the blood bag tube is assembled on the blood bag tube carrying portion 4. When the production is completed, the main body 1 cannot interact with the piercing liquid extractor. After the part 2 and the syringe part 3 are separated, and the liquid is removed again, the user opens the straight tube liquid extractor and replaces the internal blood bag tube by himself; so as to realize one-time use and avoid the contamination of the liquid caused by repeated use Happening.

When using the straight tube type liquid extractor, the blood bag tube containing the liquid to be taken out is clamped into the blood bag tube carrying portion 4 through the card inlet 41, and both ends of the blood bag tube face the puncture row respectively. The liquid part 2 and the syringe part 3, pull the push rod 331 to make the part of the push rod 331 outside the syringe tube 31 reach the maximum state, so that the syringe tube 31 is filled with air (as shown in the figure) 1), push the puncture drainage part 2 so that the tube body 21 extends into the main body 1 to the deepest state, and the tube body 21 pushes the blood bag tube carrying part 4 and the body 1 to the deepest state. The needle barrel 3 abuts, the first puncture needle 23 and the second puncture needle 32 puncture the blood bag tube (the state shown in FIG. 2), push the push rod 331, and make the The air in the syringe tube 31 is fed into the blood bag tube, and the liquid in the blood bag tube is discharged to the first puncture needle 23, and finally flows out from one end of the tube body 21 (the state shown in FIG. 3).

The present invention also provides a liquid extraction method using a straight-tube type pipeline liquid extractor, which includes the following steps:

S1, pierce both ends of the blood bag tube,

S2. Blow air into the blood bag pipe from one end of the blood bag pipe,

S3. The liquid to be taken out flows from the other end of the blood bag tube.

In this embodiment, the step S1 includes the following steps:

S11. Pull the push rod to make the part of the push rod outside the syringe tube reach the maximum state, so that the syringe tube is filled with air;

S12. Push the piercing and drainage part so that the tube body extends into the inside of the main body to the deepest state, and the tube body pushes the blood bag tube carrying part to abut the syringe part;

S13. The first puncture needle and the second puncture needle puncture the blood bag tube.

In this embodiment, the step S2 is specifically: pushing the push rod so that the air in the syringe tube is input into the blood bag tube.

Beneficial effect

The straight tube type liquid extractor is provided with a piercing and draining part, a syringe part and a blood bag tube carrying part. The blood bag tube carrying part is used to carry the blood bag tube containing the liquid to be taken out, and the piercing and draining part, The syringe part can pierce the two ends of the blood bag tube containing the liquid to be taken out, and the syringe part blows air into the blood bag tube, so that the liquid is discharged from the puncture drainage part. The whole removal process will not Liquid overflows, causing waste; the device has a simple structure, low cost, and easy operation; there is no excessive economic burden for one-time use; thus avoiding the situation of liquid pollution caused by reuse.

The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims

A straight tube liquid extractor, characterized in that it comprises: a main body, a piercing and draining part, a syringe part and a blood bag tube bearing part, the body is hollow, and the piercing and draining part is arranged at the One end of the main body is slidable relative to the main body, the syringe part is fixedly arranged on the other end of the main body, the blood bag tube carrying part is movably arranged inside the main body, and the puncture drainage Part is provided with a first puncture needle, the barrel part is provided with a second puncture needle, when the puncture and drainage part moves along the main body to a certain state, the puncture and drainage part and the One end of the blood bag tube bearing part abuts against, and pushes the other end of the blood bag tube bearing part to abut against the syringe part, the piercing and draining part and the syringe part pierce the blood bag tube respectively At both ends of the blood bag tube carried on the carrying part, the syringe part can blow air into the blood bag tube to discharge the liquid in the blood bag tube from the puncture drainage part.
The straight-tube type pipe liquid extractor according to claim 1, wherein the main body has a first end and a second end, and the first end is provided with a protrusion protruding toward the inside of the main body. Adaptor.
The straight-tube type pipe liquid extractor according to claim 2, wherein the piercing and draining portion further comprises a pipe body and a fixing plate, the fixing plate is fixed inside the pipe body, and the first thorn The puncture needle is fixed on the fixed plate, the thinner end of the first puncture needle protrudes from the tube body and faces the barrel portion, and both ends of the first puncture needle are provided with through holes and Mutual conduction.
The straight-tube type pipe liquid extractor according to claim 3, wherein the outer diameter of the tube body is the same as the inner diameter of the abutment ring, and both ends of the tube body are respectively provided with the abutment ring. The connecting ring forms a first abutting end and a second abutting end for abutting.
The straight-cylinder tube liquid extractor according to claim 4, wherein the syringe part further comprises a syringe tube and a piston part, the syringe tube is fixed to the second end, and the second The puncture needle is arranged on an end of the syringe tube close to the puncture drainage part and communicates with the inside of the syringe tube, and the piston part is pierced through the syringe tube away from the puncture drainage. One end of the liquid part makes a piston movement relative to the needle barrel, and both ends of the second puncture needle are provided with through holes and communicate with each other.
The straight-cylinder pipe liquid extractor according to claim 5, wherein the piston part includes a push rod and a rubber stopper, and the push rod is pierced through the syringe tube away from the piercing liquid discharge part. One end is slidable relative to the syringe tube, the rubber stopper is arranged on the end of the push rod located inside the syringe tube, and the rubber stopper abuts against the inner wall of the syringe tube.
The straight-cylinder tube liquid extractor according to claim 6, wherein the blood bag tube bearing part is movably provided in the main body and is located between the puncture drainage part and the syringe part, The blood bag tube carrying part is a cylinder with two ends open, and a card inlet is provided on the side wall of the blood bag tube carrying part, and the card inlet is used to insert the blood bag tube containing the liquid to be taken out.
A liquid extraction method based on the straight-tube type pipeline liquid extractor according to any one of claims 1-7, characterized in that it comprises the following steps:

S1, pierce both ends of the blood bag tube,

S2. Blow air into the blood bag pipe from one end of the blood bag pipe,

S3. The liquid to be taken out flows from the other end of the blood bag tube.
The liquid extraction method based on the straight-tube type pipeline liquid extractor according to claim 8, wherein step S1 comprises:

S11. Pull the push rod to make the part of the push rod outside the syringe tube reach the maximum state, so that the syringe tube is filled with air;

S12. Push the piercing and drainage part so that the tube body extends into the inside of the main body to the deepest state, and the tube body pushes the blood bag tube carrying part to abut the syringe part;

S13. The first puncture needle and the second puncture needle puncture the blood bag tube.