CN217447805U

CN217447805U - Novel collect rich platelet plasma device

Info

Publication number: CN217447805U
Application number: CN202220068558.3U
Authority: CN
Inventors: 林春博; 杨渊; 吴威强; 蔡金宏; 黄秋霞; 戈超; 李小峰; 高莉鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-09-20
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses a novel device for collecting platelet-rich plasma, which comprises a spiral protective cap, a syringe, a piston, a push rod and a needle nozzle; one end of the needle cylinder is provided with a needle nozzle, and the other end of the needle cylinder is provided with an opening; the open end of the needle cylinder is provided with a piston; the connecting column penetrates through the piston, and two ends of the connecting column are respectively provided with a clamping block I and a clamping block II; the clamping block II is clamped on the side surface of the piston, which is positioned at one end of the needle cylinder, provided with the needle nozzle; a clamping groove is formed in the inner wall of the open end of the needle cylinder; the clamping block I is clamped in the clamping groove; the middle part of the connecting column is provided with a slot; one end of the push rod is provided with a handle, and the other end of the push rod is provided with a connecting block; the connecting block is inserted into the slot to connect the push rod and the piston together. The utility model discloses a novel collect platelet plasma's device can regard as the vacuum test tube to use, can regard as the syringe to use again, only needs centrifugation just can collect platelet plasma.

Description

Novel collect rich platelet plasma device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to novel collect platelet rich plasma device.

Background

Normal biological tissues have certain self-repairing capacity, and the repairing capacity of the biological tissues is mainly realized by growth factors. Platelet Rich Plasma (PRP) is a technique for mobilizing the self-repair capacity of tissues to the self-repair of organisms. PRP is a platelet concentrate extracted from whole blood by centrifugation, which contains high concentrations of platelets, leukocytes, and fibrin. After being activated, the platelet can secrete a plurality of growth factors, the leucocyte can prevent infection, and the fibrin can locally construct a three-dimensional structure required by tissue repair. The concentrated PRP components not only provide concentrated nutrition for tissue repair, but also build a better repair environment for tissue repair, and can promote the repair of bone tissues and soft tissues.

The clinical application of PRP in tissue repair has only been more than ten years old, but since PRP is derived from self-body, has simple preparation, safety and effectiveness, and is increasingly widely applied in clinical application in recent years, PRP is applied to various subjects such as orthopedics, frontal and facial surgery, otorhinolaryngology, plastic cosmetology and the like. At present, PRP is prepared by manual separation or a preparation set through a centrifugal method in China, and the following defects exist so as to greatly limit the clinical application of PRP:

1. is easy to be polluted by the outside: multiple containers, increasing the chance of platelet contamination; 2. the PRP layer is a thin leucocyte layer, is easily influenced by operation factors during extraction, and has large fluctuation of platelet collection rate; 3. the preparation set is inconvenient to use, complex to operate and difficult; 4. the price of the prepared set meal is high, and the popularization and the application are not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses a novel collect platelet plasma's device can regard as the vacuum test tube to use, can regard as the syringe to use again, only needs centrifugation just can collect platelet plasma.

The utility model adopts the following technical scheme:

a novel device for collecting platelet-rich plasma comprises a spiral protective cap, a needle cylinder, a piston, a push rod, a connecting column and a needle nozzle;

one end of the needle cylinder is provided with a needle nozzle, and the other end of the needle cylinder is provided with an opening; the front end of the needle nozzle is provided with an external thread; one end of the spiral protective cap is provided with an internal thread, and the spiral protective cap is connected and installed on the needle nozzle through the internal thread and the external thread; the open end of the needle cylinder is provided with a piston; the connecting column penetrates through the piston, and two ends of the connecting column are respectively provided with a clamping block I and a clamping block II; the clamping block II is clamped on the side surface of the piston, which is positioned at one end of the needle cylinder, provided with the needle nozzle; a clamping groove is formed in the inner wall of the opening end of the needle cylinder; the clamping block I is clamped in the clamping groove; the middle part of the connecting column is provided with a slot; one end of the push rod is provided with a handle, and the other end of the push rod is provided with a connecting block; the connecting block is inserted into the slot to connect the push rod and the piston together.

The utility model discloses a further explain, the length of cylinder be 100mm, the external diameter is 13 mm. The length of the needle cylinder is 100mm, the outer diameter is 13mm, so that the needle cylinder can be directly placed into a common centrifuge hanging basket for centrifugation, a special centrifuge is not required to be equipped, the use range of the needle cylinder is wider, and the use cost is lower.

The utility model discloses a further explain, the stack shell of cylinder on be provided with 3ml scale mark and 5ml scale mark. The 3ml scale mark and the 5ml scale mark are used for reminding the blood collection amount when blood is collected.

The utility model further explains that the needle mouth is provided with 3mm scale marks and 5mm scale marks; the line width of the 5mm scale mark is larger than the 3mm scale mark.

The 3mm scale mark and the 5mm scale mark have two reminding functions: firstly, an operator is reminded to slow down the pushing speed so as to avoid the platelet loss caused by pushing the leucoderma layer by too hard force; secondly, remind the operator when need connect the syringe needle of taking the screw socket at the needle mouth, when the black red blood cell layer passed through 5mm scale mark, need connect the syringe needle of taking the screw socket at the front end of needle mouth so as to can restrict the speed of push rod. When the black red blood cell layer passes through the 3mm scale mark along with the passing, the black red blood cell layer is almost completely removed, and the remaining white membrane layer rich in platelets is platelet-rich plasma.

The utility model further describes that the push rod is Y-shaped, and 3Y-shaped ports of the push rod are respectively provided with a connecting block; the inner wall of one end of the needle cylinder, which is provided with the piston, is provided with 3 clamping grooves corresponding to the positions of the connecting blocks on the push rod; the side of piston install 3 spliced poles, the fixture block I of 3 spliced poles blocks respectively in 3 draw-in grooves.

The push rod is Y-shaped; when the piston is fixed in the needle cylinder, the clamping block I is not easy to fall off from the clamping groove. Meanwhile, when the connecting block is inserted into the connecting column slot to rotate and unlock, the piston is stressed more uniformly, and the unlocking is more labor-saving.

The utility model discloses a theory of operation:

the utility model has the functions of a vacuum blood collection tube and an injector. The piston is clamped in the clamping groove through a clamping block I in the middle of the connecting column and is fixed in the needle cylinder; the spiral protective cap can be screwed on the needle nozzle through the connection of the internal thread and the external thread; the inside of the syringe at this moment is airtight space, can realize the function of vacuum blood collection tube through vacuum treatment. In addition, the connecting block at the front end of the push rod can be inserted into the slot, then the push rod is rotated, the clamping block I is separated from the clamping groove, the piston can move in the needle cylinder, and the needle cylinder at the moment is changed into the injector. Before the syringe is used, the piston is fixed in the syringe, and the spiral protective cap is screwed on the needle nozzle.

When collecting platelet-rich plasma, the method comprises the following steps: (1) collecting blood: after the blood sampling needle is pricked into a vein, the other end of the blood sampling needle is pricked through the piston, and then blood can be collected. (2) And (3) centrifugal separation of blood: and putting the needle cylinder into a centrifuge for centrifugation, wherein the needle mouth end of the needle cylinder faces downwards. After the blood is centrifuged at a high speed by a centrifuge, the blood is clearly divided into three layers: the upper layer is a light yellow serum layer, the lower layer is a black red blood cell layer, and the middle white membrane layer is a platelet layer. (3) Removing the erythrocyte layer in the syringe: and taking the separated syringe out of the centrifuge, and installing a push rod at the rear end of the syringe. When the push rod is installed, the connecting block at the front end of the push rod is inserted into the slot in the middle of the connecting column. Then the push rod is rotated to enable the fixture block I in the middle of the connecting column to leave the clamping groove, then the spiral protective cap at the upper end of the needle nozzle is removed, the push rod is pushed, the erythrocyte layer in the needle cylinder is pushed out of the needle cylinder through the needle nozzle, and the erythrocyte layer and the serum layer are left.

The utility model has the advantages that:

1. the utility model discloses a fixture block I fixes the piston in the inside of cylinder with the design of draw-in groove, and airtight needle mouth is screwed up to the spiral helmet, and the cylinder at this moment passes through the function that vacuum test realized the vacuum test tube. After the vacuum syringe collects blood, only one centrifugation is needed to enrich the platelet plasma. Meanwhile, the syringe can be made to have an injector by installing a push rod on the piston. Realize that a device has multiple functions, avoid the pollution of blood collection and blood cell separation operation. Meanwhile, the device can complete collection at one time, so that the steps of collecting platelets are reduced, the recovery rate is improved, and the economic cost of the product is low. In conclusion, the device has extremely high clinical popularization and application values.

2. The cylinder can be directly put into the centrifugation of a common centrifuge hanging basket, and does not need to be equipped with a special centrifuge, so that the cylinder has wider application range and lower use cost.

3. The utility model discloses a set up 3ml scale mark, 5ml scale mark and 3mm scale mark, 5mm scale mark on cylinder and needle mouth respectively, at the in-process that draws blood and remove the erythrocyte layer in the cylinder, medical personnel can through observing whether enough or the removal on erythrocyte layer of the audio-visual volume of drawing blood of learning of scale mark is accomplished, play the warning effect.

4. The utility model discloses a set up the push rod of Y type to 3 ports at the push rod set up corresponding connecting block, draw-in groove and the spliced pole of connecting, improved the utility model discloses a reliability and use convenience.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of the syringe of the present invention;

FIG. 3 is a side view of the syringe of the present invention;

fig. 4 is a schematic structural diagram of the push rod of the present invention;

fig. 5 is a side view of the push rod of the present invention.

The attached drawings are as follows: 1-spiral protective cap, 2-needle cylinder, 3-piston, 4-push rod, 5-needle nozzle, 6-connecting block, 7-connecting column, 8-clamping groove, 9-clamping block I, 10-slot and 11-clamping block II.

Detailed Description

The present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

the novel platelet-rich plasma collecting device comprises a spiral protective cap 1, a needle cylinder 2, a piston 3, a push rod 4, a connecting column 7 and a needle nozzle 5;

one end of the needle cylinder 2 is provided with a needle nozzle 5, and the other end is provided with an opening; the front end of the needle nozzle 5 is provided with an external thread; one end of the spiral protective cap 1 is provided with an internal thread, and the spiral protective cap 1 is connected and installed on the needle nozzle 5 through the internal thread and the external thread; the open end of the needle cylinder 2 is provided with a piston 3; the connecting column 7 penetrates through the piston, and a clamping block I9 and a clamping block II 11 are respectively arranged at two ends of the connecting column; the clamping block II 11 is clamped on the side surface of the piston 3, which is positioned at one end of the needle cylinder 2, which is provided with the needle nozzle 5; a clamping groove 8 is arranged on the inner wall of the opening end of the needle cylinder 2; the clamping block I9 is clamped in the clamping groove 8; the middle part of the connecting column 7 is provided with a slot 10; one end of the push rod 4 is provided with a handle, and the other end of the push rod is provided with a connecting block 6; the connecting block 6 is inserted into the slot 10 to connect the push rod 4 and the piston 3 together.

The working principle of the embodiment is as follows:

the utility model has the functions of a vacuum blood collection tube and an injector. The piston 3 is clamped in the clamping groove 8 through a clamping block I arranged on the connecting column 7 and is fixed in the needle cylinder 2; the spiral protective cap 1 can be screwed on the needle mouth 5 through the connection of internal threads and external threads; in this case, the inside of the syringe 2 is a closed space, and the function of the vacuum blood collection tube can be realized by vacuum treatment. In addition, the connecting block 6 at the front end of the push rod 4 can be inserted into the slot 10 in the middle of the connecting column 7, then the push rod 4 is rotated, so that the clamping block I leaves the clamping groove 9, the piston 3 can move inside the needle cylinder 2, and the needle cylinder 2 at the moment is converted into an injector. Before the syringe 2 is used, the piston 3 is fixed in the syringe 2, and the spiral protective cap 1 is screwed on the needle nozzle 5.

When collecting platelet-rich plasma, the method comprises the following steps: (1) collecting blood: after the blood sampling needle is pricked into a vein, the other end of the blood sampling needle is pricked through the piston 3 to collect blood. (2) And (3) centrifugal separation of blood: the needle cylinder 2 is placed into a centrifuge for centrifugation, and the needle mouth 5 end of the needle cylinder 2 faces downwards. After the blood is centrifuged at a high speed by a centrifuge, the blood is clearly divided into three layers: the upper layer is a light yellow serum layer, the lower layer is a black red blood cell layer, and the middle white membrane layer is a platelet layer. (3) Removal of the red blood cell layer in the syringe 2: the separated cylinder 2 is taken out of the centrifuge, and a push rod 4 is installed at the rear end of the cylinder 2. When the push rod 4 is installed, the connecting block 6 at the front end of the push rod 4 is inserted into the slot 10 at the middle part of the connecting column 7. Then the push rod 4 is rotated to enable the clamping block I in the middle of the connecting column 7 to leave the clamping groove 8, then the spiral protective cap 1 at the upper end of the needle nozzle 5 is detached, the push rod 4 is pushed, the erythrocyte layer in the needle cylinder 2 is pushed out of the needle cylinder 2 through the needle nozzle 5, and the erythrocyte layer and the serum layer are left.

Example 2:

this embodiment differs from embodiment 1 in that: the length of the needle cylinder 2 is 100mm, and the outer diameter is 13 mm. The length of the needle cylinder 2 is 100mm, the outer diameter is 13mm, so that the needle cylinder 2 can be directly placed into a common centrifuge basket for centrifugation, a special centrifuge is not required to be equipped, the use range of the needle cylinder 2 is wider, and the use cost is lower.

The working principle of this embodiment is the same as that of embodiment 1.

Example 3:

this embodiment differs from embodiment 2 in that: the body of the needle cylinder 2 is provided with 3ml scale marks and 5ml scale marks. The 3ml scale mark and the 5ml scale mark are used for reminding the blood collection amount when blood is collected.

The needle nozzle 5 is provided with 3mm scale marks and 5mm scale marks; the line width of the 5mm scale mark is larger than the 3mm scale mark.

The 3mm scale mark and the 5mm scale mark have two reminding functions: firstly, an operator is reminded to slow down the pushing speed so as to avoid the platelet loss caused by pushing the leucoderma layer by too hard force; secondly, remind the operator when need connect the syringe needle of taking the screw socket at needle mouth 5, when the black red blood cell layer passed through 5mm scale mark, need connect the syringe needle of taking the screw socket at the front end of needle mouth 5 so as to can restrict the speed of push rod 4. When the black red blood cell layer passes through the 3mm scale mark along with the passage, the black red blood cell layer is almost completely removed, and the remaining white blood cell layer rich in platelets is the platelet-rich plasma.

The working principle of this embodiment is the same as that of embodiment 1.

Example 4:

this embodiment differs from embodiment 3 in that: the push rod 4 is Y-shaped, and 3Y-shaped ports of the push rod 4 are respectively provided with a connecting block 6; the inner wall of one end of the needle cylinder (2) provided with the piston (3) is provided with 3 clamping grooves 8 corresponding to the positions of the connecting blocks 6 on the push rod 4; the side of piston 3 install 3 spliced

poles

7, 3 spliced poles 7 fixture block I block respectively in 3 draw-in grooves 8.

The push rod 4 is Y-shaped; when the piston 3 is fixed in the needle cylinder 2, the clamping block I is not easy to fall off from the clamping groove 8. Meanwhile, when the connecting block 6 is inserted into the slot 10 in the middle of the connecting column 7 to be rotated and unlocked, the piston 3 is stressed more uniformly, and the unlocking is more labor-saving.

The working principle of this embodiment is the same as that of embodiment 1.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention may be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a novel collect device of platelet rich plasma which characterized in that: comprises a spiral protective cap (1), a needle cylinder (2), a piston (3), a push rod (4), a connecting column (7) and a needle nozzle (5);

one end of the needle cylinder (2) is provided with a needle nozzle (5), and the other end is provided with an opening; the front end of the needle nozzle (5) is provided with an external thread; one end of the spiral protective cap (1) is provided with an internal thread, and the spiral protective cap (1) is connected and installed on the needle nozzle (5) through the internal thread and the external thread; a piston (3) is arranged at the opening end of the needle cylinder (2); the connecting column penetrates through the piston, and two ends of the connecting column are respectively provided with a clamping block I (9) and a clamping block II (11); the clamping block II (11) is clamped on the side surface of the piston (3) which is positioned at one end of the needle cylinder (2) provided with the needle nozzle (5); a clamping groove (8) is arranged on the inner wall of the opening end of the needle cylinder (2); the clamping block I (9) is clamped in the clamping groove (8); the middle part of the connecting column (7) is provided with a slot (10); one end of the push rod (4) is provided with a handle, and the other end of the push rod is provided with a connecting block (6); the connecting block (6) is inserted into the slot (10) to connect the push rod (4) and the piston (3).

2. The novel platelet rich plasma collection device of claim 1, wherein: the length of the needle cylinder (2) is 100mm, and the outer diameter is 13 mm.

3. The novel platelet rich plasma collection device of claim 1, wherein: the body of the needle cylinder (2) is provided with 3ml scale marks and 5ml scale marks.

4. The novel platelet rich plasma collection device of claim 1, wherein: the needle nozzle (5) is provided with 3mm scale marks and 5mm scale marks; the line width of the 5mm scale mark is larger than the 3mm scale mark.

5. The novel platelet rich plasma collection device of claim 1, wherein: the push rod (4) is Y-shaped, and 3Y-shaped ports of the push rod (4) are respectively provided with a connecting block (6); the inner wall of one end of the needle cylinder (2) provided with the piston (3) is provided with 3 clamping grooves (8) corresponding to the positions of the connecting blocks (6) on the push rod (4); the side of piston (3) install 3 spliced poles (7), fixture block I (9) of 3 spliced poles (7) are blocked respectively in 3 draw-in grooves (8).