CN113974623A - Blood collector for severe medicine - Google Patents

Abstract

The invention relates to the technical field of medical blood sampling devices, in particular to a blood sampler for critical medicine, which comprises a shell, a waste part, a blood sampling component, a fixing component and a self-destruction component, wherein the shell is provided with a plurality of grooves; the waste part is fixedly arranged on one side of the middle part of the shell and is communicated with the inside of the shell; the blood sampling assembly is arranged in the shell in a sliding manner; the fixing component is fixedly arranged on the outer wall of the shell and arranged in the middle of the shell; self-destruction subassembly sets up in the casing, the one end of self-destruction subassembly and the middle part fixed connection of blood sampling subassembly, and the other end of self-destruction subassembly passes the end of abandoning bottom and sets up outside the end of abandoning, and this application can be to the puncture needle after the blood sampling finishes contract in real time in proper order under contactless and protect and independently scrap work to thoroughly avoid the puncture needle can appear stabbing medical staff and medical waste recovery personnel's risk when abandonment, structural design is ingenious, the simple operation.

Description

Blood collector for severe medicine

Technical Field

The invention relates to the technical field of medical blood sampling devices, in particular to a blood sampling device for severe medicine.

Background

Venous blood sampling is a basic operation skill of nurses, is commonly used for routine examination of patient admission, and can also provide treatment basis for doctors during rescue. However, with the development of natural diseases and the variation of viruses and bacteria, the cross infection and the disease transmission caused by the contact of blood or body fluid become more serious (for example, the common or repeated use of drug addicts to injection devices leads to the rapid transmission of diseases, and in daily medical practice, the iatrogenic infection caused by the needle stick injuries of injection to medical care personnel is also very serious, and even causes the transmission of diseases such as AIDS, hepatitis B, hepatitis C and the like). The demand for disposable use of medical instruments (syringes, blood sampling devices, etc.) having a puncturing function has risen to regulatory requirements in various countries. The World Health Organization (WHO) also strictly regulates the three elements of safe injection (puncture): 1. is harmless to users; 2. harmless to the recipient (patient); 3. is harmless to the environment; at present, most of clinical blood collectors are ordinary blood collectors (basically without safety features), after the aim of collecting blood of a patient is fulfilled, safety protection of a puncture needle on the blood collector cannot be realized, and the risk of stabbing medical staff or waste disposal staff exists;

therefore, the blood collector for critical medicine can protect the puncture needle without contacting the puncture needle after the blood of the patient is collected and can be discarded independently.

Disclosure of Invention

In view of the above, it is necessary to provide a blood collection device for use in critical medicine, in view of the problems of the related art.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

a hemostix for critical medicine comprises a shell, a waste part, a blood sampling component, a fixing component and a self-destruction component; the waste part is fixedly arranged on one side of the middle part of the shell and is communicated with the inside of the shell; the blood sampling assembly is arranged in the shell in a sliding manner; the fixing component is fixedly arranged on the outer wall of the shell and arranged in the middle of the shell; the self-destruction component is arranged in the shell, one end of the self-destruction component is fixedly connected with the middle part of the blood sampling component, and the other end of the self-destruction component penetrates through the bottom of the waste part and is arranged towards the outside of the waste part.

Preferably, the shell comprises a first tube body, a second tube body, a third tube body, a first end cover and a second end cover; the shell is composed of a first tube body, a second tube body and a third tube body which are coaxially arranged in sequence, the outer diameter and the inner diameter of the third tube body are both larger than those of the second tube body, and the joint of the third tube body and the second tube body is in smooth transition arrangement; the first end cover is detachably covered on the end part of the first pipe body; the second end cover is detachably covered on the end part of the third pipe body.

Preferably, the second pipe body comprises a chute, a notch and a bayonet; the sliding groove radially penetrates through the second pipe body, one end of the sliding groove is located in the middle of the second pipe body, the other end of the sliding groove is arranged towards the first pipe body, and the length of the sliding groove is one half of the total length of the blood sampling assembly; the bayonet is opened in the lateral wall of breach, and the bayonet is opened in one side of the long limit direction of breach.

Preferably, the third pipe body comprises a window and a protective layer; the window is arranged outside the third tube body in a penetrating way; the protective layer is arranged at the window.

Preferably, the waste stopping part comprises a waste stopping bin, a through hole, a first anti-skid bulge and a second anti-skid bulge; the waste bin is fixedly arranged on one side of the second pipe body, and the connecting part of the waste bin and the second pipe body is arranged in a smooth transition mode; the through hole is arranged at the bottom of the waste bin in a penetrating way; the first anti-skid bulge is arranged on the surface of the end part of the waste bin; the second anti-skid bulge is arranged on the surface of the other end of the waste bin relative to the first anti-skid bulge.

Preferably, the blood sampling assembly comprises a connecting part, a blood sampling needle head, a transmission needle head and a push-pull part; blood sampling syringe needle fixed mounting is in the one end of connecting portion, and the relative blood sampling syringe needle of transmission syringe needle sets up in the other end of connecting portion, and connecting portion, blood sampling syringe needle and transmission syringe needle middle part axial link up and be coaxial setting, and push-and-pull portion sets up perpendicularly in the outer wall of connecting portion, and 3d is located the middle part of connecting portion, and the tip of push-and-pull portion passes the spout and is connected towards the outside setting of second body and with spout sliding fit.

Preferably, the connecting part comprises a main connecting rod, an auxiliary connecting rod and a fracture; the connecting part consists of a main connecting rod and auxiliary connecting rods which are fixedly arranged at the two ends of the main connecting rod in a mirror image state; the main connecting rod and the auxiliary connecting rod are coaxially arranged, the fracture is arranged outside the auxiliary connecting rod, and the fracture is arranged close to the joint of the main connecting rod and the auxiliary connecting rod.

Preferably, the push-pull part comprises a connecting sheet, a push-pull sheet, a third anti-sliding bulge and a clamping bulge; the connecting sheet is vertically arranged on the outer wall of the main connecting rod; the push-pull sheet is horizontally arranged at the end part of the connecting sheet; the third anti-slip bulge is arranged on the surface of the push-pull sheet; the clamping protrusions are arranged on the side wall of the push-pull sheet and are in one-to-one correspondence with the bayonets.

Preferably, the fixing component comprises a flexible sheet, a dustproof patch and an easy-tearing sheet; the flexible sheet is fixedly arranged in the middle of the second pipe body, and the inner walls of the two sides of the flexible sheet are coated with adhesion layers; the dustproof paste is arranged on the adhesion layer; the easy-tearing piece is arranged at the end part of the dustproof sticker.

Preferably, the self-destruction component comprises a pull rope and a pull ball; the pull rope is arranged in the waste bin, one end of the pull rope is fixedly connected with the middle part of the blood sampling assembly, and the other end of the pull rope is arranged towards the outside of the waste bin after penetrating through the through hole; the pull ball is fixedly arranged at one end of the pull rope which penetrates through the through hole and is positioned outside the waste bin.

Compared with the prior art, the beneficial effect of this application is:

1. the cooperation of window and inoxidizing coating has been passed through in this application, has realized how when medical staff is taking a blood sample to the patient, can see through the window and look directly observe the blood collection condition in the vacuum collection tube that is in the third body.

2. This application has realized how to the blood sampling subassembly after the blood sampling finishes through the useless storehouse, the work of how to save after self-destruction subassembly self-destruction.

3. This application is through the dustproof cooperation of pasting and easily tearing the piece of flexible piece, has realized how to carry out spacing fixed work to the in-process of taking a blood sample with the blood sampling subassembly, avoids the blood sampling subassembly to touch the condition appearance such as to break away from between syringe needle and the patient arm because of the external factor mistake.

Drawings

FIG. 1 is a perspective view of the present application in an inoperative state;

FIG. 2 is an enlarged view of a portion of FIG. one;

FIG. 3 is a perspective view of the present application in an operational state;

FIG. 4 is a perspective view of the present application;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B;

FIG. 6 is a front view of the present application;

FIG. 7 is a side view of the present application;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;

FIG. 9 is a perspective view of the blood collection assembly of the present application;

fig. 10 is a partially enlarged schematic view at C of fig. 9.

The reference numbers in the figures are:

1-a shell; 1 a-a first tube; 1 b-a second tube; 1b 1-chute; 1b 2-notch; 1b 3-bayonet; 1 c-a third tube; 1c 1-window; 1c 2-protective layer; 1 d-first end cap; 1 e-a second end cap;

2-a waste stop; 2 a-waste bin; 2 b-a through hole; 2 c-first non-slip bumps; 2 d-second non-slip bumps;

3-a blood collection assembly; 3 a-a linker; 3a 1-main connecting rod; 3a 2-secondary connecting rod; 3a 3-break; 3 b-a blood sampling needle head; 3 c-a delivery needle; 3 d-a push-pull part; 3d 1-connecting tab; 3d 2-push-pull tab; 3d 3-third anti-skid bump; 3d 4-snap projection;

4-a fixation assembly; 4 a-a flexible sheet; 4 b-dustproof paste; 4 c-easy-to-tear pieces;

5-a self-destructive component; 5 a-a pull rope; 5 b-pulling the ball.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 10, the present application provides:

a hemostix for critical medicine comprises a shell 1, a waste part 2, a blood sampling component 3, a fixing component 4 and a self-destruction component 5; the waste part 2 is fixedly arranged on one side of the middle part of the shell 1, and the waste part 2 is communicated with the inside of the shell 1; the blood sampling component 3 is arranged in the shell 1 in a sliding way; the fixing component 4 is fixedly arranged on the outer wall of the shell 1, and the fixing component 4 is arranged in the middle of the shell 1; the self-destruction component 5 is arranged in the shell 1, one end of the self-destruction component 5 is fixedly connected with the middle part of the blood sampling component 3, and the other end of the self-destruction component 5 penetrates through the bottom of the waste part 2 and is arranged towards the outside of the waste part 2.

Based on the above embodiments, the technical problem that the present application intends to solve is how to autonomously recover and discard the needle after blood collection. When a patient needs to take blood under a working state, a medical worker firstly tears a sealing packaging bag, then takes out the shell 1 and respectively removes end covers which are arranged at the end part and the tail part of the shell 1, then pushes the blood taking component 3 towards the end part of the shell 1 until the blood taking end of the blood taking component 3 leaks out from the end part of the shell 1, inserts a vacuum blood taking tube into the tail part of the shell 1 and enables the tail part of the blood taking component 3 to be penetrated into the vacuum blood taking tube, then medical workers prick the blood taking end of the blood taking component 3 into the body of the patient so as to finish the blood collection of the patient, after the blood taking is finished, the workers pull out the vacuum blood taking tube and push the blood taking component 3 back to an initial position, finally drives the self-destruction component 5 to abolish the blood taking component 3 in the abolishing part 2 through the self-destruction component 5, thereby finishing the self-scrapping work of the blood taking device after the blood taking is finished, the fixing component 4 is used for adhering the blood sampling component 3 and the shell 1 to the arm of a patient through the fixing component 4 in the blood sampling process.

Further, as shown in fig. 3 and 4:

the shell 1 comprises a first tube body 1a, a second tube body 1b, a third tube body 1c, a first end cover 1d and a second end cover 1 e; the shell 1 consists of a first pipe body 1a, a second pipe body 1b and a third pipe body 1c which are coaxially arranged in sequence, the outer diameter and the inner diameter of the third pipe body 1c are both larger than those of the second pipe body 1b, and the joint of the third pipe body 1c and the second pipe body 1b is in smooth transition arrangement; the first end cover 1d is detachably arranged at the end part of the first pipe body 1a in a covering manner; the second end cap 1e is detachably provided at the end of the third tube 1 c.

Based on the above embodiment, the middle channel of the first tube 1a only allows the blood sampling needle to pass through, the inner channel of the second tube 1b is used for the blood sampling component 3 to move in an autonomous sliding manner, the third tube 1c is used for storing the vacuum blood sampling tube in a sliding manner, and the first end cap 1d and the second end cap 1e are used for respectively sealing and protecting the end of the first tube 1a and the tail of the third tube 1 c.

Further, as shown in fig. 2:

the second tube body 1b comprises a sliding groove 1b1, a notch 1b2 and a bayonet 1b 3; the sliding groove 1b1 radially penetrates through the second tube body 1b, one end of the sliding groove 1b1 is located at the middle position of the second tube body 1b, the other end of the sliding groove is arranged towards the first tube body 1a, and the length of the sliding groove 1b1 is one half of the total length of the blood sampling assembly 3; the notch 1b3 is opened on the side wall of the notch 1b2, and the notch 1b3 is opened on one side of the notch 1b2 in the longitudinal direction.

Based on the above-described embodiments, the technical problem that the present application intends to solve is how to guide the blood collection assembly 3 to slide along the axial direction of the housing 1 and how to fix the blood collection assembly 3 moved to a specified position. Under the operating condition, when the blood sampling assembly 3 is pushed by medical personnel, the blood sampling assembly 3 firstly slides towards the notch 1b2 along the long edge direction of the chute 1b1, when the blood sampling assembly 3 slides to the notch 1b2, the connecting part 3a is rotated towards the notch 1b2 to move the middle part of the blood sampling assembly 3 to clamp the blood sampling assembly 3 to the bayonet 1b3, the blood sampling assembly 3 is locked and fixed, the end piercing end of the blood sampling assembly 3 at the moment is also inclined towards the surface of the skin, the operation of the medical personnel is convenient, and the blood sampling end of the blood sampling assembly 3 is pierced into the body of a patient.

Further, as shown in fig. 3:

the third pipe body 1c comprises a window 1c1 and a protective layer 1c 2; the window 1c1 is arranged outside the third tube body 1c in a penetrating way; the protective layer 1c2 is disposed at the window 1c 1.

Based on the above embodiment, the technical problem that the present application is intended to solve is how to see the blood inlet condition of the hollow blood collection tube inside the third tube body 1c that can be removed when the patient collects blood, and the present application solves the above technical problem through the cooperation of the window 1c1 and the protective layer 1c2, where the protective layer 1c2 is made of a transparent material, and the window 1c1 formed on the outer wall of the third tube body 1c is made up by the protective layer 1c2, so as to realize the visibility of the side wall of the third tube body 1 c.

Further, as shown in fig. 6 to 8:

the waste part 2 comprises a waste bin 2a, a through hole 2b, a first antiskid projection 2c and a second antiskid projection 2 d; the waste bin 2a is fixedly arranged on one side of the second pipe body 1b, and the connecting part of the waste bin 2a and the second pipe body 1b is arranged in a smooth transition mode; the through hole 2b is arranged at the bottom of the waste bin 2a in a penetrating way; the first anti-skid projection 2c is arranged on the surface of the end part of the waste bin 2 a; the second stud 2d is provided on the surface of the other end of the waste bin 2a opposite to the first stud 2 c.

Based on the above embodiments, the technical problem that the present application intends to solve is how to store the blood collection assembly 3 after self-destruction. Therefore, the technical problem is solved through the waste bin 2a, when the blood sampling component 3 finishes blood sampling of a patient in a working state, the blood sampling component 3 deforms under the pulling of the self-destruction component 5 and is bent inside the waste bin 2a, two ends of the blood sampling component 3 are clamped inside the waste bin 2a under the deformation generated by external pressure, the whole blood sampling component is arranged in a U shape and is bent inside the waste bin 2a, and when the blood sampling component 3 is driven by the outside, the blood sampling component cannot move autonomously along the axial direction of the shell 1, so that the problem that when a transmission hemostix is used for waste, a worker needs to cover a needle head protective sleeve on the needle head again to discard the needle head, and the finger is punctured due to operation errors is solved; when the puncture needle is punctured into the body of a patient, medical staff can grasp the waste bin 2a for relay, and the first anti-skid protrusions 2c and the second anti-skid protrusions 2d arranged on the surfaces of the two ends of the waste bin 2a are used for slipping when the medical staff grasp the waste bin 2a for force borrowing.

Further, as shown in fig. 9 and 10:

the blood collection assembly 3 comprises a connecting part 3a, a blood collection needle 3b, a transmission needle 3c and a push-pull part 3 d; blood sampling syringe needle 3b fixed mounting is in the one end of connecting portion 3a, transmission syringe needle 3c sets up in the other end of connecting portion 3a relatively blood sampling syringe needle 3b, connecting portion 3a, blood sampling syringe needle 3b and transmission syringe needle 3c middle part axial link up and be coaxial setting, push-and-pull portion 3d sets up perpendicularly in the outer wall of connecting portion 3a, 3d is located connecting portion 3 a's middle part, push-and-pull portion 3 d's tip passes spout 1b1 towards the outside setting of second body 1b and is connected with spout 1b1 sliding fit.

Based on the above embodiments, the technical problem to be solved by the present application is how to take blood from a patient and how to drive the blood taking needle to move out of the housing 1. When the staff wants to push out blood sampling syringe needle 3b and take a blood sample to the patient under operating condition, the staff at first grabs and holds casing 1 and press big finger outside push-and-pull portion 3d, promote push-and-pull portion 3d towards the tip direction of casing 1 afterwards, when carrying out the propelling movement at push-and-pull portion 3d, push-and-pull portion 3d can drive connecting portion 3a simultaneously, blood sampling syringe needle 3b and transmission syringe needle 3c move towards casing 1 tip direction in step, stop after blood sampling syringe needle 3b blood sampling end stretches out outside casing 1.

Further, as shown in fig. 10:

the connecting part 3a comprises a main connecting rod 3a1, a secondary connecting rod 3a2 and a fracture 3a 3; the connecting part 3a consists of a main connecting rod 3a1 and an auxiliary connecting rod 3a2 fixedly arranged at two ends of the main connecting rod 3a1 in a mirror image state; the main connecting rod 3a1 and the auxiliary connecting rod 3a2 are integrally and coaxially arranged, the fracture 3a3 is opened outside the auxiliary connecting rod 3a2, and the fracture 3a3 is arranged close to the connection part of the main connecting rod 3a1 and the auxiliary connecting rod 3a 2.

Based on the above embodiments, the technical problem to be solved by the present application is how to make the connecting portion 3a more easily bent into the waste bin 2a when the medical staff pulls the self-destruction component 5. Therefore, the technical problem is solved by the fracture 3a3 formed in the outer wall of the auxiliary connecting rod 3a2, and the fracture 3a3 formed in the outer wall of the auxiliary connecting rod 3a2 enables the main connecting rod 3a1 to be more easily broken and bent and deformed at the fracture 3a3 formed in the auxiliary connecting rod 3a2 when the main connecting rod 3a1 receives radial force, so that medical staff can bend the connecting part 3a without consuming large strength.

Further, as shown in fig. 10:

the push-pull part 3d comprises a connecting piece 3d1, a push-pull piece 3d2, a third anti-sliding bulge 3d3 and a clamping bulge 3d 4; the connecting piece 3d1 is vertically arranged on the outer wall of the main connecting rod 3a 1; the push-pull plate 3d2 is horizontally arranged at the end part of the connecting plate 3d 1; the third anti-skidding bump 3d3 is arranged on the surface of the push- pull sheet 3d 2; the clamping protrusions 3d4 are arranged on the side wall of the push-pull plate 3d2, and the clamping protrusions 3d4 are arranged corresponding to the bayonets 1b3 one by one.

Based on the above-described embodiments, the technical problem to be solved by the present application is how to drive the connecting portion 3a, the lancet head 3b, and the transfer needle 3c to move. When the medical staff pushes the push-pull piece 3d2 in the working state, the push-pull piece 3d2 can enable the connecting part 3a to move along the axis direction of the shell 1 all the time under the assistance of the connecting piece 3d1, the third slide prevention protrusion 3d3 is used for increasing the friction force between the finger end of the medical staff and the push-pull piece 3d2, and the clamping protrusion 3d4 is used for clamping with the clamping opening 1b3 after the push-pull piece 3d2 moves to the notch 1b2, so that the connecting part 3a is fixed, and the connecting part 3a is prevented from rotating automatically when the medical staff takes blood from a patient.

Further, as shown in fig. 4 and 5:

the fixing component 4 comprises a flexible sheet 4a, a dustproof sticker 4b and an easy-to-tear sheet 4 c; the flexible sheet 4a is fixedly arranged in the middle of the second pipe body 1b, and the inner walls of two sides of the flexible sheet 4a are coated with adhesion layers; the dustproof paste 4b is arranged on the adhesion layer in a sticking way; the easy-to-tear piece 4c is arranged at the end part of the dustproof patch 4 b.

Based on the above embodiment, the technical problem that the present application is intended to solve is how to fix the blood collection assembly 3 when medical staff collects blood for a patient, so that the blood collection end of the blood collection assembly 3 does not shake, resulting in the separation between the blood collection assembly 3 and the arm of the patient during the blood collection process. For this reason, the application solves the technical problem through the cooperation of the flexible sheet 4a, the dustproof sticker 4b and the easy-to-tear sheet 4 c; after the blood collecting end of the blood collecting assembly 3 is pierced into the arm of a patient, a worker combs open the flexible sheet 4a to enable the flexible sheet 4a to be attached to the outside of the arm of the patient, then sequentially tears the dustproof paste 4b, leaks out the adhesion layers on the two sides of the flexible sheet 4a, and fixes the arm of the patient and the flexible sheet 4a through the adhesion layers, so that the blood collecting assembly 3 in a stable blood collecting state is realized; the easy-to-tear piece 4c is used for facilitating medical staff to quickly find the end part of the dustproof patch 4b and pull away the dustproof patch 4 b.

Further, as shown in fig. 7 and 8:

the self-destruction component 5 comprises a pull rope 5a and a pull ball 5 b; the pull rope 5a is arranged inside the waste bin 2a, one end of the pull rope 5a is fixedly connected with the middle part of the blood sampling assembly 3, and the other end of the pull rope 5a is arranged towards the outside of the waste bin 2a after passing through the through hole 2 b; the pull ball 5b is fixedly arranged at one end of the pull rope 5a which passes through the through hole 2b and is positioned outside the waste bin 2 a.

Based on the above embodiments, the technical problem to be solved by the present application is how to destroy the blood collection assembly 3 after blood collection is completed. Therefore, the above technical problem is solved through stay cord 5a and ball 5b in this application, after the blood sampling of blood sampling subassembly 3 finishes, medical staff drives blood sampling subassembly 3 and moves to the initial position on casing 1, then grasp ball 5b and pull, ball 5b pulls down the inside removal of connecting portion 3a radial orientation abruption storehouse 2a through ball 5b drive under the pulling of external force, stop until connecting portion 3a produces deformation and bends to abruption storehouse 2a inside under external pulling force, thereby accomplish and carry out the work of scrapping of self-destruction to blood sampling subassembly 3 after the use.

This application can contract in real time in proper order and independently scrap work under contactless to the pjncture needle after the blood sampling finishes to thoroughly avoid the pjncture needle can appear stabbing medical staff and medical waste recovery personnel's risk when abandonment, structural design is ingenious, the simple operation.

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A hemostix for critical medicine is characterized by comprising a shell (1), a waste part (2), a blood sampling component (3), a fixing component (4) and a self-destruction component (5); the waste stop part (2) is fixedly arranged on one side of the middle part of the shell (1), and the waste stop part (2) is communicated with the inside of the shell (1); the blood sampling component (3) is arranged in the shell (1) in a sliding way; the fixing component (4) is fixedly arranged on the outer wall of the shell (1), and the fixing component (4) is arranged in the middle of the shell (1); the self-destruction component (5) is arranged in the shell (1), one end of the self-destruction component (5) is fixedly connected with the middle part of the blood sampling component (3), and the other end of the self-destruction component (5) penetrates through the bottom of the waste part (2) and is arranged towards the outside of the waste part (2).

2. A device as claimed in claim 1, wherein the housing (1) comprises a first tube (1a), a second tube (1b), a third tube (1c), a first end cap (1d) and a second end cap (1 e); the shell (1) is composed of a first pipe body (1a), a second pipe body (1b) and a third pipe body (1c) which are coaxially arranged in sequence, the outer diameter and the inner diameter of the third pipe body (1c) are both larger than those of the second pipe body (1b), and the connecting part of the third pipe body (1c) and the second pipe body (1b) is in smooth transition arrangement; the first end cover (1d) is detachably arranged at the end part of the first pipe body (1 a); the second end cover (1e) is detachably arranged at the end part of the third pipe body (1 c).

3. A hemostix for severe medicine according to claim 2, wherein the second tube (1b) comprises a chute (1b1), a notch (1b2) and a bayonet (1b 3); the sliding groove (1b1) penetrates through the second tube body (1b) in the radial direction, one end of the sliding groove (1b1) is located in the middle of the second tube body (1b), the other end of the sliding groove is arranged towards the first tube body (1a), and the length of the sliding groove (1b1) is one half of the total length of the blood sampling assembly (3); the bayonet (1b3) is opened on the side wall of the notch (1b2), and the bayonet (1b3) is opened on one side of the notch (1b2) in the longitudinal direction.

4. A blood collector for critical medicine according to claim 3, wherein the third tube (1c) comprises a window (1c1) and a protective layer (1c 2); the window (1c1) is arranged outside the third pipe body (1c) in a penetrating way; the protective layer (1c2) is disposed at the window (1c 1).

5. A blood collector for severe medicine according to claim 4, wherein the waste part (2) comprises a waste bin (2a), a through hole (2b), a first anti-slip protrusion (2c) and a second anti-slip protrusion (2 d); the waste bin (2a) is fixedly arranged on one side of the second pipe body (1b), and the connecting part of the waste bin (2a) and the second pipe body (1b) is arranged in a smooth transition mode; the through hole (2b) is arranged at the bottom of the waste bin (2a) in a penetrating way; the first anti-skid bulge (2c) is arranged on the surface of the end part of the waste bin (2 a); the second anti-skid protrusion (2d) is arranged on the surface of the other end of the waste bin (2a) relative to the first anti-skid protrusion (2 c).

6. A lancing device for critical medicine according to claim 5, wherein the lancing assembly (3) comprises a connecting part (3a), a lancing needle (3b), a transfer needle (3c) and a push-pull part (3 d); blood sampling syringe needle (3b) fixed mounting sets up in the one end of connecting portion (3a), transmission syringe needle (3c) sets up in the other end of connecting portion (3a) relative blood sampling syringe needle (3b), connecting portion (3a), blood sampling syringe needle (3b) and transmission syringe needle (3c) middle part axial link up and be coaxial setting, push-and-pull portion (3d) set up perpendicularly in the outer wall of connecting portion (3a), 3d is located the middle part of connecting portion (3a), the tip of push-and-pull portion (3d) passes spout (1b1) and is connected towards the outside setting of second body (1b) and with spout (1b1) sliding fit.

7. A blood collector for severe medicine according to claim 6, wherein the connecting portion (3a) comprises a main connecting rod (3a1), a sub connecting rod (3a2) and a fracture (3a 3); the connecting part (3a) consists of a main connecting rod (3a1) and auxiliary connecting rods (3a2) which are fixedly arranged at two ends of the main connecting rod (3a1) in a mirror image state; the main connecting rod (3a1) and the auxiliary connecting rod (3a2) are integrally and coaxially arranged, the fracture (3a3) is arranged outside the auxiliary connecting rod (3a2), and the fracture (3a3) is arranged close to the connecting position of the main connecting rod (3a1) and the auxiliary connecting rod (3a 2).

8. A blood collecting device for severe medicine according to claim 7, wherein the push-pull portion (3d) comprises a connecting piece (3d1), a push-pull piece (3d2), a third slide-proof protrusion (3d3) and a snap-fit protrusion (3d 4); the connecting piece (3d1) is vertically arranged on the outer wall of the main connecting rod (3a 1); the push-pull sheet (3d2) is horizontally arranged at the end part of the connecting sheet (3d 1); the third anti-skidding bulge (3d3) is arranged on the surface of the push-pull sheet (3d 2); the clamping protrusions (3d4) are arranged on the side wall of the push-pull sheet (3d2), and the clamping protrusions (3d4) are arranged corresponding to the bayonets (1b3) one by one.

9. A device for the collection of severe medicine according to claim 8, wherein the fixing member (4) comprises a flexible sheet (4a), a dust proof sticker (4b) and a tear-off sheet (4 c); the flexible sheet (4a) is fixedly arranged in the middle of the second pipe body (1b), and the inner walls of the two sides of the flexible sheet (4a) are coated with adhesion layers; the dustproof paste (4b) is arranged on the adhesion layer in a sticking way; the easy-tearing piece (4c) is arranged at the end part of the dustproof patch (4 b).

10. A device for the collection of severe medicine according to claim 9, wherein the self-destruction element (5) comprises a pull string (5a) and a pull ball (5 b); the pull rope (5a) is arranged in the waste bin (2a), one end of the pull rope (5a) is fixedly connected with the middle part of the blood sampling assembly (3), and the other end of the pull rope (5a) is arranged towards the outside of the waste bin (2a) through the through hole (2 b); the pull ball (5b) is fixedly arranged at one end of the pull rope (5a) which penetrates through the through hole (2b) and is positioned outside the waste bin (2 a).

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