CN112790768B

CN112790768B - Disposable hemostix

Info

Publication number: CN112790768B
Application number: CN202110325113.9A
Authority: CN
Inventors: 林小靖; 郭敬舜; 康龙; 钱宇; 马世宏; 曹健荣
Original assignee: Denogen Beijing Bio Sci&tech Co ltd
Current assignee: Denogen Beijing Bio Sci&tech Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-02-22
Anticipated expiration: 2041-03-26
Also published as: CN112790768A

Abstract

The invention discloses a disposable blood collector which comprises a blood collecting unit, wherein one end of the blood collecting unit is provided with a collecting part, a blood collecting port is arranged on the collecting part, a blood collecting channel and a blood collecting part are arranged in the blood collecting unit, one end of the blood collecting channel is communicated with the blood collecting port, the other end of the blood collecting channel is communicated with the blood collecting part, blood enters the blood collecting unit from the blood collecting port and is collected by the blood collecting part through the blood collecting channel, and a ventilation structure is arranged on the blood collecting unit and is communicated with the blood collecting part to promote the drying of the blood in the blood collecting part. The disposable hemostix can realize quantitative blood sampling, is convenient to operate and control the blood sampling process, is convenient to store and transport, and the blood sample is not easy to be polluted, and the blood sampling unit is damaged by the broken position when the blood collecting part is taken out, so that the blood sample cannot be recovered, the blood sample can be prevented from being tampered before detection, and the safety and the accuracy of the blood sample can be ensured.

Description

Disposable hemostix

Technical Field

The invention relates to the field of biochemical detection, in particular to a disposable hemostix.

Background

Three methods are commonly used for blood collection, one is venous blood collection, one is peripheral blood collection, and the other is arterial blood collection. The venous blood sampling method is the most widely applied blood sampling type, most clinical tests require venous blood sampling methods, such as routine tests of blood and various biochemical tests, including liver function, kidney function and blood fat, and most serological tests also require venous blood sampling methods. Since peripheral blood is easily mixed with interstitial fluid during extrusion, the peripheral blood sampling method is less applicable and can be applied to methods for identifying various blood types. The artery blood sampling method is mainly used for analyzing qi and blood clinically, and can be used for analyzing the qi and blood by extracting femoral artery. Based on different detection requirements, different blood sampling methods are often required to collect blood, wherein a dry blood paper sheet method is a common blood sampling method, namely, a whole blood sample is collected on filter paper, and after the blood is dried, dry blood plaques are obtained on the filter paper. When the detection is needed, the dry blood plaque on the filter paper is extracted by a solvent, and the component to be detected in the dry blood plaque is detected and analyzed by an analysis method such as a fluorescence reaction method, a tandem mass spectrometry method and the like.

The dry blood sheet method is generally to drop the blood directly on the filter paper or press the finger directly on the filter paper so that the filter paper absorbs the blood, and the filter paper with the blood sample is generally dried by directly exposing to air and then is temporarily stored in a box or bag. The blood sample collection method has the disadvantages that an operator is difficult to control the blood collection amount, the blood volume is too small, the blood sample formed on the filter paper is difficult to meet the detection requirement, the accuracy of the detection result is influenced, the blood drying speed is influenced if the blood volume is too large, the blood waste of a detected person is caused, the operation is very inconvenient, and the quantitative blood collection is difficult to realize. Because the hands of people are easy to contact with the filter paper in the blood sampling process, the risk of blood sample pollution caused by mistaken contact is increased, and the accuracy of the detection result is influenced; meanwhile, the possibility that other people except the owner of the sample directly contact with the blood sample is increased, and potential safety hazards are generated.

In addition, the blood sample directly formed by using the filter paper is not only inconvenient to transport and store, but also easily causes problems such as falsification or contamination during the transport and storage.

Disclosure of Invention

The invention aims to provide a disposable hemostix, which can quantitatively collect blood, is convenient to operate and is convenient for drying, storing and transporting blood samples. In order to achieve the purpose, the disposable blood collector of the invention has the specific technical scheme that:

the utility model provides a disposable hemostix, including the blood sampling unit, the one end of blood sampling unit is provided with the portion of gathering, be provided with the blood collection mouth in the portion of gathering, inside blood sampling passageway and the blood collection portion of being provided with of blood sampling unit, the one end and the blood collection mouth intercommunication of blood sampling passageway set up, the other end and the setting of blood collection portion intercommunication, blood gets into in the blood sampling unit by the blood collection mouth, via the blood sampling passageway by blood collection portion collection, be provided with ventilation structure on the blood sampling unit, ventilation structure and the setting of blood collection portion intercommunication to promote the blood drying in the blood collection portion.

Further, a cavity with a fixed volume is formed inside the blood collection channel to contain a fixed amount of blood.

Further, a blood sampling channel fixing component and a blood collecting part fixing component are arranged in the blood sampling unit, the blood sampling channel fixing component is arranged close to the blood sampling channel so as to fix the blood sampling channel in the blood sampling unit, and the blood collecting part fixing component is arranged close to the blood collecting part so as to fix the blood collecting part in the blood sampling unit.

Further, the blood collection part fixing component comprises a containing groove, the blood collection part is arranged in the containing groove, and the blood collection part and the inner wall of the containing groove are arranged at intervals so as to form a drying gap between the blood collection part and the containing groove.

Furthermore, the blood collection part fixing component comprises at least one protrusion structure, the protrusion structure is arranged on the inner wall of the containing groove, and the protrusion structure is abutted against the outer surface of the blood collection part, so that a drying gap is formed between the blood collection part and the containing groove.

Furthermore, the blood sampling channel is a capillary tube, the capillary tube is fixedly arranged at the blood sampling channel fixing component, one end of the capillary tube extends to the blood sampling opening of the collection part, and the other end of the capillary tube extends to the containing groove and is in contact with the blood collection part in the containing groove.

Further, a detachable portion is provided on the blood collection unit, the detachable portion being provided adjacent to the blood collection portion.

Further, the one end of detachable portion is provided with the breakpoint structure, and the other end is formed with protruding structure, and protruding structure protrusion sets up in blood sampling unit to remove detachable portion from blood sampling unit.

Further, the part of the blood sampling unit corresponding to the blood sampling channel and the blood collecting part is arranged to be a transparent structure so as to observe the blood flow.

Furthermore, the blood collecting device comprises one, two or more blood collecting units, wherein the blood collecting parts in the two or more blood collecting units are arranged in a separated mode, the blood collecting channels in the two or more blood collecting units are arranged in a separated mode, and the blood collecting ports in the two or more blood collecting units are arranged in a separated mode.

Further, the blood sampling unit comprises a first shell and a second shell which are attached to each other, an accommodating cavity is formed between the first shell and the second shell, and the blood sampling channel and the blood collecting part are arranged in the accommodating cavity.

Furthermore, a first channel groove is formed on the first shell, a second channel groove is formed on the second shell, and the first channel groove and the second channel groove are arranged oppositely and enclose a channel groove for accommodating a blood sampling channel; a first blood collecting groove is formed in the first shell, a second blood collecting groove is formed in the second shell, and the first blood collecting groove and the second blood collecting groove are arranged oppositely and jointly enclose a containing groove for containing the blood collecting portion.

Furthermore, a first positioning assembly is arranged on the first shell, a second positioning assembly is correspondingly arranged on the second shell, and the first positioning assembly is matched and connected with the second positioning assembly so that the first shell and the second shell are fixedly positioned.

Further, first locating component is including setting up first lug and the second lug on first casing, and second locating component is including setting up first recess and the second recess on the second casing, and first lug is close to the passageway recess with first recess and sets up, and the connection of mutually supporting, second lug and second recess are close to the storage tank setting, and the connection of mutually supporting.

Further, at least one fixing hole is arranged on the first shell and/or the second shell, and the adhesive can be injected between the first shell and the second shell through the fixing hole.

Further, a spill-proof assembly is disposed between the first housing and the second housing, and the spill-proof assembly is disposed adjacent to the fixing hole to limit a flow range of the adhesive.

Further, the blood collecting part is compressed filter paper, cotton fiber or porous polymer.

Further, including the protective cover, the protective cover lid is established in the collection portion department of blood sampling unit, and the protective cover includes interconnect's fixed part and turns over a book portion, and fixed part fixed connection is on the blood sampling unit, turns over a book portion and can turn over around the fixed part to shelter from or expose the collection portion of blood sampling unit, turn over a book portion and turn over and can make the protective cover form the support, in order to support the vertical placement of blood sampling unit.

Further, the folding part comprises a first cover plate, a second cover plate and a connecting plate, the first cover plate is connected with the fixing part, the first cover plate is attached to one side surface of the collecting part, the second cover plate is attached to the other side surface of the collecting part, and the connecting plate is connected with the first cover plate and the second cover plate, so that the first cover plate and the second cover plate are arranged outside the collecting part in a surrounding mode.

The disposable hemostix of the invention has the following advantages:

(1) the quantitative blood sampling can be realized, the blood collecting process can be observed in the blood sampling process, the blood sampling operation is convenient, and the blood sampling process is convenient to control;

(2) the disposable hemostix can be directly used as a sample container for drying and storing blood samples, is convenient to store and transport, and can ensure that the collected blood samples are not easily polluted, thereby ensuring the accuracy of detection results, avoiding the false touch of other people and preventing potential safety hazards;

(3) when the blood collection part is taken out, the breaking position can damage the blood collection unit and cannot be recovered, so that the blood sample can be prevented from being tampered before detection, and the safety and the accuracy of the blood sample can be ensured;

(4) two or more blood samples can be collected simultaneously according to the detection requirement, and the samples are mutually independent and separated, so that the operation is convenient, and the samples can be ensured not to be influenced mutually.

Drawings

Fig. 1 is a first perspective view of a first disposable blood collection device according to a first embodiment of the present invention.

Fig. 2 is a perspective view of a disposable blood collection device according to a first embodiment of the present invention.

Fig. 3 is an exploded view of the disposable blood collection set according to the first embodiment of the present invention.

Fig. 4 is an exploded view of the disposable blood collection set according to the first embodiment of the present invention.

FIG. 5 is a schematic view of the internal structure of the disposable blood collection set according to the first embodiment of the present invention.

Fig. 6 is a schematic structural view of the first housing of the disposable blood collection set according to the first embodiment of the present invention.

Fig. 7 is a schematic structural view of the second housing of the first disposable blood collection set according to the present invention.

Fig. 8 is a first perspective view of a first embodiment of the disposable blood collection set with a protective cover.

Fig. 9 is a second perspective view of the first embodiment of the disposable blood collection set with a protective cover.

FIG. 10 is a schematic view of a disposable blood collection set with a protective cover as a stand.

Fig. 11 is a first perspective view of a second embodiment of the disposable blood collection set of the present invention.

Fig. 12 is a second perspective view of the second embodiment of the disposable blood collection set of the present invention.

FIG. 13 is a schematic view of the internal structure of a second disposable blood collection set according to the present invention.

FIG. 14 is a second schematic view showing the internal structure of a second embodiment of the disposable blood collection device of the present invention.

Fig. 15 is a perspective view of a second embodiment of the disposable blood collection set with a protective cover.

Fig. 16 is a schematic view of the disposable blood collection set of the second embodiment with the protective cover as a stand.

Fig. 17 is a first perspective view of a third disposable blood collection set according to the present invention.

Fig. 18 is a second perspective view of a third disposable blood collection set according to the present invention.

Fig. 19 is an exploded view of a disposable blood collection set according to a third embodiment of the present invention.

Fig. 20 is an exploded view of a second disposable blood collection set according to a third embodiment of the present invention.

Fig. 21 is a perspective view of a disposable blood collection set according to a fourth embodiment of the present invention.

Detailed Description

For better understanding of the purpose, structure and function of the present invention, the disposable blood collection device of the present invention will be described in further detail with reference to the accompanying drawings.

The disposable blood collector of the invention can be composed of one, two or more blood collecting units, and each blood collecting unit can independently collect, dry and store blood. When two or more blood sampling units are included, the two or more blood sampling units can be arranged side by side, and blood collection is carried out on bleeding parts in sequence so as to obtain two or more blood samples at the same time.

Specifically, the one end of blood sampling unit is provided with the portion of gathering, is provided with the blood collection mouth in the portion of gathering, and the inside blood sampling passageway and the blood collection portion of being provided with of blood sampling unit, the one end and the blood collection mouth intercommunication setting of blood sampling passageway, the other end and the blood collection portion intercommunication setting, blood is collected by the blood collection portion via the blood collection passageway in getting into the blood sampling unit by the blood collection mouth. The blood sampling unit is also provided with a ventilation structure which is communicated with the blood collection part, so that the blood collection part is communicated with the environment outside the blood sampling unit, and the blood drying in the blood collection part is promoted.

The blood collecting part has good capability of absorbing and storing blood, can be made of materials such as compressed filter paper and cotton fiber, and can also be made of porous high polymer with good adsorption performance, so that the blood entering the blood collecting channel can be quickly and fully absorbed by the blood collecting part.

Furthermore, a blood sampling channel fixing component and a blood collecting part fixing component are arranged in the blood sampling unit, and the blood sampling channel fixing component is arranged close to the blood sampling channel and used for fixing the blood sampling channel in the blood sampling unit; the blood collection part fixing component is arranged close to the blood collection part and is used for fixing the blood collection part in the blood collection unit.

When the disposable blood collector comprises two or more blood collecting units, the blood collecting parts in the two or more blood collecting units are separately arranged, the blood collecting channels are separately arranged, and the blood collecting ports are separately arranged, so that the collection process of each blood sample is independent, and the collected blood samples are not interfered.

As shown in fig. 1 to 10, in the first embodiment of the disposable blood collection set of the present invention, and in the second embodiment shown in fig. 11 to 16, the blood collection unit includes a first housing 100 and a second housing 200 attached to each other, an accommodation chamber is formed between the first housing 100 and the second housing 200, and the blood collection channel and the blood collection portion 300 are disposed in the accommodation chamber.

Specifically, as shown in fig. 6 and 7, a first channel groove 101 is formed on an inner wall of the first housing 100, a second channel groove is correspondingly formed on an inner wall of the second housing 200, the first channel groove 101 and the second channel groove 201 are both elongated strip-shaped grooves, and when the first housing 100 and the second housing 200 are attached to each other, the first channel groove 101 and the second channel groove 201 are arranged oppositely to enclose an elongated channel groove for accommodating the blood collection channel. One end of the channel groove extends to the collection portion of the blood collection unit, and a blood collection port is formed at the edge of the collection portion, and the other end extends to the blood collection portion 300 of the blood collection unit.

Further, a first blood collection groove 102 is formed on the first housing 100, a second blood collection groove 202 is formed on the second housing 200, and when the first housing 100 and the second housing 200 are attached to each other, the first blood collection groove 102 and the second blood collection groove 202 are arranged opposite to each other and together enclose a containing groove for containing the blood collection portion 300. The one end that the collection portion was kept away from to the passageway recess sets up with the storage tank intercommunication.

Preferably, the blood collection channel is a capillary 400, and the capillary 400 is fitted in the channel groove to be connected with the first and

second housings

100 and 200. One end of the capillary 400 extends to the blood collection port of the collection portion, and the other end extends to the accommodation groove, and contacts with the blood collection portion 300 in the accommodation groove. Blood flows from the blood collection port of the collection portion to the blood collection portion 300 via the capillary 400.

Preferably, the capillary 400 is disposed protruding from the blood collection port to facilitate accurate contact with the bleeding site; the whole toper structure that is of collection portion, along the setting of drawing blood unit to outside protrusion and extension, the point portion that the mouth of drawing blood is located collection portion toper structure to in the butt joint bleed position.

The volume inside the capillary 400 can be specifically limited by selecting and adjusting the inner diameter and length of the capillary 400, thereby achieving the effect of quantitatively collecting blood samples. When a blood sample is collected, a blood collecting port of the disposable blood collector is contacted with a bleeding part, then the flowing condition of the blood in the capillary 400 is observed, when the capillary 400 is completely filled with the blood, the blood collecting port can be moved away, and the blood content in the capillary 400 is the amount of the blood sample to be collected. Preferably, the blood collecting portion 300 absorbs the same amount of blood as the amount of blood collected in the capillary 400, and the blood collecting portion 300 can completely and sufficiently absorb the blood sample in the capillary 400.

In addition, other pipeline structures can be adopted to replace the capillary 400 as a blood collection channel of the disposable blood collector; or grooves are directly formed in the first shell 100 and/or the second shell 200, so that a blood sampling channel surrounded by the grooves is formed between the first shell 100 and the second shell 200 which are attached to each other, and the volume of the blood sampling channel is set by adjusting the width, the depth and the length of the grooves, so that the effect of quantitatively collecting blood samples is realized. That is, a cavity with a fixed volume is formed in the blood collection channel, so that a fixed amount of blood is accommodated, and the purpose of collecting blood quantitatively is achieved.

Further, at least one protrusion structure is disposed on the inner wall of the receiving groove, and when the blood collection portion 300 is located in the receiving groove, the protrusion structure is abutted against the outer surface of the blood collection portion 300, so that the blood collection portion 300 and the receiving groove are spaced apart from each other to form a drying gap. On the one hand, the drying gap can provide a space for the flow of air, promoting rapid drying of blood in the blood collecting part 300; on the one hand, the dry gap can prevent the blood collection part 300 from contacting or attaching to the inner wall of the containing groove, and prevent blood from being adhered to the inner wall of the containing groove and losing the blood sample.

Specifically, as shown in fig. 5, 6 and 7, the blood collecting part 300 is a cylindrical granular structure having good blood absorption performance, the protrusion structure includes a dot-shaped protrusion 103 disposed on the side wall of the first blood collecting groove 102 and a strip-shaped protrusion 203 disposed on the bottom wall of the first blood collecting groove 102 and the second blood collecting groove 202, and the dot-shaped protrusion 103 and the strip-shaped protrusion 203 support the blood collecting part 300 together, so that the blood collecting part 300 is spaced from the inner wall of the accommodating groove, and also plays a role in fixing the blood collecting part 300. Of course, other forms of protrusion structures, clamping structures, or the like may be used to fix and support the blood collection portion 300 so as to form a dry gap between the blood collection portion 300 and the receiving groove.

Further, as shown in fig. 1 and 2, a ventilation structure is provided at a position close to the blood collecting portion 300, and the ventilation structure includes a first ventilation opening 104 provided below the blood collecting portion 300, and a second ventilation opening 204 provided at a side of the blood collecting portion 300. The first ventilation opening 104, the second ventilation opening 204 and the drying gap in the containing groove are communicated with each other, and air can flow between the first ventilation opening 104, the second ventilation opening 204 and the drying gap, so that moisture in the blood collection part 300 is evaporated, and the drying of the blood sample is realized.

Specifically, as shown in fig. 6 and 7, a through groove is formed at one end of the first shell 100, which is far away from the collection portion, and is formed at the bottom of the first blood collection groove 102, one end of the through groove is communicated with the first blood collection groove 102, and the other end of the through groove is communicated with the outside of the first shell 100; when the first casing 100 and the second casing 200 are attached to each other, the through slot on the first casing 100 and the inner wall of the second casing 200 together enclose a first ventilation opening 104. The side of the second blood collecting groove 202 of the second shell 200 is recessed inwards to form a groove, and when the first shell 100 and the second shell 200 are attached to each other, the groove at the side of the second blood collecting groove 202 and the inner wall of the first shell 100 enclose a second ventilation opening 204. Preferably, as shown in fig. 2 and 12, when the disposable blood collection device includes two or more blood collection units arranged side by side, the second ventilation opening 204 is arranged between two adjacent blood collection units and located at the adjacent side portions of the two accommodating grooves, and this arrangement not only can meet the ventilation requirement, but also can hide the ventilation opening at the inner side portion of the disposable blood collection device, thereby reducing the risk of contamination.

Further, as shown in fig. 2, the blood sampling unit is provided with a detachable portion 205, and the detachable portion 205 is provided adjacent to the blood collecting portion 300. The detachable portion 205 can be removed from the blood collecting unit to expose the blood collecting portion 300, so that the blood collecting portion 300 can be taken out from the housing well for testing. The detachable portion 205 is of an unrecoverable structure, i.e., once removed from the blood collection unit, cannot be mounted to the blood collection unit again, and cannot be fixedly connected to the blood collection unit again. Through the arrangement mode, when the blood collecting part is taken out again, the breaking position of the detachable part 205 can damage the blood sampling unit, so that the blood sampling unit and the detachable part 205 are broken and cannot be recovered, therefore, the blood sample can be taken out from the blood sampling unit only when being detected, if the blood sample is taken out or tampered before being detected, a detected person can find the blood sample, and the safety of the blood sample and the accuracy of a detection result are ensured.

Specifically, the detachable portion 205 is disposed on the second housing 200 at an end of the second housing 200 away from the collecting portion. One end of the detachable portion 205 is provided with a breaking point structure, and an edge of the detachable portion 205 may be broken along an imaginary line formed by the breaking point structure to be separated from the second housing 200, thereby being removed. The other end of the detachable portion 205 is longer than the end of the first housing 100 away from the collecting portion, so that when the first housing 100 is engaged with the second housing 200, a protruding structure protruding outward is formed at the end of the detachable portion 205, and the protruding structure is disposed protruding from the blood collecting unit, which is convenient for a human hand or other stripping tool to grasp, so as to remove the detachable portion 205 from the blood collecting unit. Of course, the detachable portion 205 may be provided on the first housing 100, or on both the first housing 100 and the second housing 200.

Further, as shown in fig. 1, the first housing 100 is provided with a fixing hole 105. When the disposable blood collection device of the present invention is manufactured, the first casing 100 and the second casing 200 are first attached to each other, and then an adhesive is injected through the fixing hole 105, so that the adhesive flows between the first casing 100 and the second casing 200, thereby adhering and fixing the first casing 100 and the second casing 200.

Specifically, as shown in fig. 1, 6 and 11, a fixing hole 105 may be provided at one end of the blood collecting unit near the collecting part, corresponding to a channel groove for accommodating the capillary 400, and an adhesive may flow between the first case 100 and the second case 200 through the fixing hole 105 to adhesively fix the first case 100, the capillary 400 and the second case 200; when the disposable blood collection set includes two or more blood collection units, the fixing holes 105 may be provided at positions between adjacent two blood collection units, and preferably, two or more fixing holes 105 are juxtaposed in the extending direction of the blood collection passage to adhesively fix the first case 100 and the second case 200. Of course, the fixing holes 105 may be formed on the first casing 100 as shown in fig. 1 and 11, may be formed on the second casing 200, or may be formed on both the first casing 100 and the second casing 200, and the number of the fixing holes 105 is one, two, or more. The arrangement position and the arrangement number of the fixing holes 105 can be adaptively adjusted according to the specific shape and size of the blood collecting unit, so that the first case 100 and the second case 200 can be stably bonded.

Further, an anti-overflow assembly is disposed between the first and

second housings

100 and 200, and is disposed near the fixing hole 105, and the anti-overflow assembly may limit a flow range of the adhesive between the first and

second housings

100 and 200, and prevent the adhesive from overflowing to the outside of the housings or overflowing to a structural position where the blood collection portion 300 or the like is not bondable.

Specifically, the spill prevention assembly includes at least one barrier groove disposed laterally of the securing hole 105 to block adhesive flow. As shown in fig. 5 to 7, the blocking groove includes a first anti-overflow groove 106 provided on the first housing 100 and a second anti-overflow groove 206 provided on the second housing 200, the first anti-overflow groove 106 and the second anti-overflow groove 206 are located opposite to each other, and when the first housing 100 and the second housing 200 are fitted to each other, the first anti-overflow groove 106 and the second anti-overflow groove 206 are snapped to each other to form the blocking groove between the first housing 100 and the second housing 200.

In the embodiment shown in fig. 5 and 7, two blocking grooves are provided beside the fixing hole 105 at the blood collecting unit 300, the two blocking grooves are provided on both sides of the fixing hole 105, and both the two blocking grooves are provided across the blood collecting passage. When the adhesive is injected through the fixing hole 105, the flow of the adhesive is blocked by the two blocking grooves, so that the adhesive can flow only at a position between the two blocking grooves, cannot flow to a housing gap outside the blocking grooves, and cannot flow to a blood collection passage outside the two blocking grooves along the outer wall of the capillary 400. Preferably, as shown in fig. 5 and 14, when the disposable blood collection set includes two or more blood collection units, the barrier grooves of the respective blood collection units may be arranged in series to form a complete groove structure. Of course, besides the above embodiments, the number and the positions of the blocking grooves may be adjusted according to the actual number and the positions of the fixing holes 105.

Specifically, the anti-overflow assembly comprises at least one guide assembly, the fixing hole 105 is arranged corresponding to the guide assembly, and the guide assembly can guide the adhesive to flow into the guide assembly through the fixing hole 105, so that the effect of controlling the flow direction of the adhesive is achieved, the adhesive is enabled to be adhered and fixed to a specific part, and meanwhile, the adhesive can be controlled not to flow to the part where the adhesive should not appear.

As shown in fig. 6, 7, 13 and 14, the guide assembly includes a spill prevention protrusion 107 provided on the first housing 100 and a spill prevention recess 207 provided on the second housing 200, the spill prevention recess 207 and the spill prevention protrusion 107 being cooperatively disposed, and the spill prevention protrusion 107 being fitted in the spill prevention recess 207 when the housing halves are fitted. The fixing hole 105 is provided corresponding to the position of the guide assembly, and when the adhesive is injected through the fixing hole 105, the adhesive flows to a gap formed between the overflow preventing groove 207 and the overflow preventing protrusion 107 and is blocked by the edge of the overflow preventing groove 207. In the embodiment shown in the figures, the guiding component is arranged between two adjacent blood sampling units, and 3 fixing holes 105 are correspondingly arranged on the guiding component, and of course, the specific arrangement position of the guiding component and the number of the corresponding fixing holes 105 can be adaptively adjusted according to the shape and the size of the disposable blood sampling device.

Further, a first positioning assembly is disposed on the first casing 100, a second positioning assembly is correspondingly disposed on the second casing 200, the first positioning assembly is connected with the second positioning assembly in a matching manner, and when the first casing 100 is attached to the second casing 200, the first positioning assembly and the second positioning assembly can be mutually buckled together, so that the first casing 100 and the second casing 200 can be mutually positioned and fixedly connected.

Specifically, as shown in fig. 6, 7, 13 and 14, the first positioning assembly includes a first protrusion 108 and a second protrusion 109 provided on the first housing 100, and the second positioning assembly includes a first groove 208 and a second groove 209 provided on the second housing 200. The first protrusion 108 and the first groove 208 are disposed near the channel groove, and can be fastened with each other and connected in a matching manner, so as to position and fix the channel groove of the blood sampling unit; meanwhile, the first protrusions 108 are disposed at both sides of the capillary 400, which may further enhance the mounting stability of the capillary 400. The second bump 109 and the second groove 209 are disposed near the receiving groove, at the bottom of the receiving groove, and can be fastened and connected to each other, so as to fix the receiving groove of the blood sampling unit; meanwhile, one end of the second projection 109 is disposed against the blood collecting portion 300, which can further enhance the mounting stability of the blood collecting portion 300.

Further, the blood collection unit is provided with a transparent structure at a position corresponding to the blood collection channel and the blood collection part 300, so that the flow of blood in the capillary 400 and the blood collection part 300 can be observed when a blood sample is collected, and the collection amount of blood can be controlled. Specifically, the first casing 100 and the second casing 200 may be both configured as a transparent structure, or one half of the casings, or a part of the casings, may be configured as a transparent structure.

Further, as shown in fig. 1 and 11, when the disposable blood collection set includes two or more blood collection units, the two or more blood collection units are disposed side by side, the first housing 100 of the two or more blood collection units is preferably integrally formed, and the second housing 200 is preferably integrally formed. The first housings 100 of two adjacent blood sampling units are separately arranged at the positions of the accommodating grooves to form a separation gap, i.e. the detachable parts 205 of two adjacent blood sampling units are separately arranged. This kind of arrangement is favorable to the ventilation of storage tank and the drying of blood collection portion 300 on the one hand, makes things convenient for the independent sample of each blood sampling unit blood collection portion 300 on the one hand.

Further, as shown in fig. 8 to 10 and 15 to 16, a protective cover 500 is further provided on the disposable blood collection set, and the protective cover 500 covers the collection portion of the blood collection unit to protect the collection portion and the blood collection port. Protective cover 500 includes interconnect's fixed part and turns over a book portion, and fixed part fixed connection is on the blood sampling unit, turns over a book portion and can turn over around the fixed part to shelter from or expose the collection portion of blood sampling unit, turns over a book portion and turns over a book and can make protective cover 500 form the support, in order to support the vertical placement of blood sampling unit. Specifically, the folding part comprises a first cover plate, a second cover plate and a connecting plate, the first cover plate is connected with the fixing part, the first cover plate is attached to one side surface of the collecting part, the second cover plate is attached to the other side surface of the collecting part, and the connecting plate is connected with the first cover plate and the second cover plate, so that the first cover plate and the second cover plate are surrounded outside the collecting part.

During the use, at first open the folding portion of protective cover 500, reveal the blood sampling mouth, gather the blood sample, then turn over folding portion into the supporting structure, so that the vertical placing of disposable hemostix is on even planes such as desktop, make the blood sampling mouth upwards, blood collection portion 300 is downward, this kind of operating means is favorable to accelerating blood along blood sampling passageway flow direction blood collection portion 300 on the one hand, can promote the blood drying in blood collection portion 300 on the one hand, can avoid blood sampling mouth to touch external object such as desktop to take place the pollution simultaneously. After the blood sample is collected, the folding part of the protective cover 500 is folded back to the original position and buckled on the collecting part.

As shown in fig. 17 to 20, the third embodiment of the disposable blood collection set of the present invention includes three blood collection units arranged side by side, each blood collection unit includes a first shell 600 and a second shell 700 attached to each other, an accommodation chamber is formed between the first shell 600 and the second shell 700, and a blood collection channel and a blood collection device 800 are arranged in the accommodation chamber.

Specifically, as shown in fig. 19 and 20, a first channel groove 601 is formed on an inner wall of the first shell portion 600, a second channel groove 701 is correspondingly formed on an inner wall of the second shell portion 700, the first channel groove 601 and the second channel groove 701 are both elongated strip-shaped grooves, and when the first shell portion 600 and the second shell portion 700 are attached to each other, the first channel groove 601 and the second channel groove 701 are disposed opposite to each other and jointly enclose an elongated channel groove for accommodating a blood collection channel. One end of the channel groove extends to the collection portion of the blood collection unit, and a blood collection port is formed at the edge of the collection portion, and the other end extends to the blood collection device 800 of the blood collection unit.

Further, a first blood collecting groove 602 is formed on the first casing portion 600, a second blood collecting groove 702 is formed on the second casing portion 700, and when the first casing portion 600 and the second casing portion 700 are attached to each other, the first blood collecting groove 602 and the second blood collecting groove 702 are disposed opposite to each other and together enclose a containing groove for containing the blood collecting device 800. The one end that the collection portion was kept away from to the passageway recess sets up with the storage tank intercommunication.

The blood sampling channel can be a capillary tube 900, the capillary tube 900 is embedded in the channel groove, one end of the capillary tube 900 extends to the blood sampling port of the collection portion, the other end of the capillary tube 900 extends to the containing groove, and blood flows from the blood sampling port of the collection portion to the containing groove through the capillary tube 900 and is absorbed by the blood collection device 800.

Preferably, the capillary tube 900 is disposed protruding from the blood collection port to facilitate accurate contact with the bleeding site; the whole toper structure that is of collection portion, along the setting of drawing blood unit to outside protrusion and extension, the point portion that the mouth of drawing blood is located collection portion toper structure to in the butt joint bleed position. The blood sampling channel can be of other pipeline structures, or grooves are directly formed on the first shell part 600 and/or the second shell part 700, so that the blood sampling channel surrounded by the grooves is formed between the first shell part 600 and the second shell part 700 which are attached to each other. The blood sampling channel can contain a fixed amount of blood by adjusting the fixed volume of the cavity in the blood sampling channel, so that the purpose of quantitatively collecting the blood is achieved.

Further, as shown in fig. 19 and 20, at least one protrusion structure is disposed on an inner wall of the accommodating groove, and the protrusion structure may be disposed on the first shell portion 600, the second shell portion 700, or both the first shell portion 600 and the second shell portion 700. When the blood collection device 800 is located in the containing groove, the protrusion structure is in contact with the outer surface of the blood collection device 800, so that the blood collection device 800 and the containing groove are arranged at intervals to form a drying gap, thereby promoting rapid drying of blood and preventing blood from adhering to the inner wall of the containing groove.

Specifically, the blood collection device 800 is a circular sheet structure and has good blood absorption performance, and correspondingly, the accommodating groove is also an oblate groove body matched with the shape of the blood collection device 800. One end of the blood sampling channel close to the containing groove extends to the central part of the containing groove, so that a port for discharging blood of the blood sampling channel is positioned in the middle of the containing groove; correspondingly, the blood collecting device 800 is provided with a strip-shaped channel which is matched with the part of the blood collecting channel extending into the accommodating groove, and the part of the blood collecting channel extending to the inside of the accommodating groove is embedded in the channel arranged on the blood collecting device 800, so that the blood flowing out of the blood collecting channel directly flows to the central part of the blood collecting device 800, the blood is more favorably and uniformly infiltrated into the blood collecting device 800, and the absorption of the blood is accelerated.

Further, as shown in fig. 17 to 20, a ventilation structure is provided at a position close to the blood collection device 800, the ventilation structure including a first ventilation groove 603 provided on the first case portion 600 and a second ventilation groove 703 provided on the second case portion 700. The first ventilating slot 603 and the second ventilating slot 703 are both of an elongated strip-shaped groove structure, are arranged along the transverse direction of the blood sampling unit, respectively extend to the side edges of the two sides of the first shell part 600 and the second shell part 700, and form gaps at the side edges of the two sides of the first shell part 600 and the second shell part 700. When the first shell part 600 and the second shell part 700 are attached to each other, the first ventilation groove 603 and the second ventilation groove 703 are arranged oppositely to form a ventilation groove together, and two ventilation openings are formed at the side edges of two sides of the blood sampling unit; the ventilation groove is disposed across the containing groove to communicate with the blood collection device 800, and the containing groove and the blood collection device 800 communicate with the external environment of the blood collection unit through the ventilation opening.

Further, a detachable portion is provided on the blood collection unit, and the detachable portion is provided adjacent to the blood collection device 800. The removable portion can be removed from the blood collection unit to expose the blood collection device 800 to facilitate removal of the blood collection device 800 from the receiving well for testing. The detachable portion is of an unrecoverable structure that once removed from the blood collection unit, cannot be mounted to the blood collection unit again and cannot be fixedly connected to the blood collection unit again.

Specifically, as shown in fig. 19 and 20, the detachable portion includes a first detaching portion 604 provided on the first case portion 600 and a second detaching portion 704 provided on the second case portion 700. The first removing portion 604 is broken along the first ventilation slot 603 and the first housing portion 600 with the first ventilation slot 603 on the first housing portion 600 as a dividing line, so as to achieve the purpose of removing; the second removing portion 704 is broken along the second ventilating slot 703 and the second housing portion 700 by using the second ventilating slot 703 on the second housing portion 700 as a dividing line, so as to achieve the purpose of removing. When blood collection device 800 is to be removed, first removal portion 604 or second removal portion 704 may be removed alone, or first removal portion 604 and second removal portion 704 may be removed entirely, so that blood collection device 800 is exposed to the outside, and blood collection device 800 can be removed easily.

Preferably, the first and second removing

portions

604, 704 are arranged in a long and short manner such that the end of the removable portion forms a protruding structure protruding outward, and the protruding structure is arranged to protrude from the blood collection unit and can be grasped by a human hand or other stripping tool to facilitate the removal of the removable portion from the blood collection unit.

Further, the first and/or

second shell portions

600 and 700 are provided with fixing through-holes 705, and an adhesive is injected through the fixing through-holes 705, such that the adhesive flows between the first and

second shell portions

600 and 700, and the first and

second shell portions

600 and 700 are adhesively fixed.

Furthermore, a first positioning hole 606 is formed in the first casing part 600, and correspondingly, a second positioning hole 706 is formed in the second casing part 700, when the disposable blood sampler is processed and produced, the first casing part 600 and the second casing part 700 are attached to each other, so that the first positioning hole 606 is opposite to the second positioning hole 706, and positioning elements such as positioning columns on processing equipment penetrate into the first positioning hole 606 and the second positioning hole 706, so that the relative position between the first casing part 600 and the second casing part 700 can be positioned, and the processing precision is improved.

The above is only a preferred embodiment of the third embodiment of the present invention, and of course, the blood sampling unit in this embodiment may also include only one, two, or more than three.

Further, as shown in fig. 21, the fourth embodiment of the disposable blood collection device of the present invention includes 6 blood collection units, wherein 3 blood collection units located on the left side form a group, 3 blood collection units located on the right side form a group, and the two groups of blood collection units are connected to each other by a disconnectable structure 10. When blood samples are collected, the collection process of 6 blood collection units can be completed in sequence; when sample detection, sample archiving or other operations are required, the two groups of blood sampling units can be mutually disconnected by breaking the breakable structure 10, so that the blood sample can be conveniently used.

The breakable structure 10 may be a narrow and short connecting portion as shown in fig. 21, integrally formed with the first and/or

second case portions

600 and 700, disposed between adjacent two blood collection units. The breakable structure 10 may be in other forms, such as a broken line of a dotted line formed by continuously arranged small holes, a grid-shaped connection structure formed by a plurality of thin connection columns, and the breakable structure 10 may be a structure in which a card slot and a bump structure that are engaged with each other, a magnet that can be attracted to each other, and the like can be connected and disconnected. By providing a breakable structure 10 between two adjacent blood collection units, the separation of different blood collection units in the same disposable blood collection set can be achieved.

Of course, the above is only a preferred embodiment of the fourth embodiment, and the number of the blood sampling units and the grouping manner are not limited. The disposable blood collector can also only comprise two blood collecting units, or comprises three, four, five or more blood collecting units, and the grouping mode of the blood collecting units can be set and adjusted according to the actual application requirements.

The disposable hemostix of the invention has the following advantages:

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.

Claims

1. A disposable hemostix is characterized by comprising a first shell and a second shell, wherein the first shell and the second shell are mutually attached to form a blood sampling unit, one end of the blood sampling unit is provided with a collection part, the collection part protrudes and extends outwards along the blood sampling unit, the collection part is provided with a blood sampling port, the blood sampling port is positioned at the tip part of the protruding part of the collection part, the blood sampling unit is internally provided with a blood sampling channel and a blood collection part, the blood sampling channel is a capillary tube, one end of the capillary tube protrudes out of the blood sampling port, the other end of the capillary tube is communicated with the blood collection part, blood enters the blood sampling unit from the blood sampling port and is collected by the blood collection part through the capillary tube, the blood sampling unit is provided with a ventilation structure, and the ventilation structure is communicated with the blood collection part to promote the drying of the blood in the blood collection part; a detachable part is arranged on the blood sampling unit at a position close to the blood collecting part, the detachable part can be removed from the blood sampling unit to take out the dried blood collecting part, and the detachable part is of an unrecoverable structure;

a first blood collecting groove is formed on the first shell, a second blood collecting groove is formed on the second shell, and the first blood collecting groove and the second blood collecting groove are arranged oppositely and form a containing groove for containing the blood collecting part together; the inner wall of the containing groove is provided with at least one bulge structure, and the bulge structure is abutted against the blood collecting part so as to form a drying gap between the blood collecting part and the containing groove; the ventilation structure comprises a through groove arranged on the first shell, the through groove is arranged at the bottom of the first blood collection groove to form a first ventilation opening below the blood collection part, a groove is arranged on the second shell, and the groove is positioned at the side part of the second blood collection groove to form a second ventilation opening at the side part of the blood collection part; the first ventilation opening, the second ventilation opening and the drying gap are communicated with each other to promote the blood in the blood collection part to be dried;

the first shell is provided with a first positioning component, the second shell is correspondingly provided with a second positioning component, and the first positioning component is matched and connected with the second positioning component so as to position and fix the first shell and the second shell; the first shell is provided with at least one fixing hole, and an adhesive can be injected between the first shell and the second shell through the fixing hole so as to stably adhere the first shell and the second shell; be provided with the anti-overflow subassembly between first casing and the second casing, the anti-overflow subassembly is close to the fixed orifices setting, and the anti-overflow subassembly includes separation groove and direction subassembly, and separation groove sets up the side at the fixed orifices to stop the adhesive and flow, the direction subassembly corresponds the fixed orifices setting, with the flow direction of guide adhesive.

2. The disposable blood collecting device according to claim 1, wherein a cavity of a fixed volume is formed inside the blood collecting channel to contain a fixed amount of blood.

3. The disposable blood collecting device according to claim 1, wherein a blood collecting channel fixing member and a blood collecting portion fixing member are provided in the blood collecting unit, the blood collecting channel fixing member being provided adjacent to the blood collecting channel to fix the blood collecting channel in the blood collecting unit, the blood collecting portion fixing member being provided adjacent to the blood collecting portion to fix the blood collecting portion in the blood collecting unit.

4. The disposable lancing device of claim 1, wherein one end of the detachable portion is provided with a breaking point structure and the other end is formed with a protruding structure which is provided protruding from the lancing unit to facilitate removal of the detachable portion from the lancing unit.

5. The disposable blood collecting device according to claim 1, wherein a portion of the blood collecting unit corresponding to the blood collecting channel and the blood collecting portion is provided in a transparent structure so as to observe the flow of blood.

6. The disposable blood collecting device according to claim 1, comprising one, two or more blood collecting units, wherein the blood collecting parts of the two or more blood collecting units are separately provided, the blood collecting channels of the two or more blood collecting units are separately provided, and the blood collecting ports of the two or more blood collecting units are separately provided.

7. The disposable blood collection device according to any one of claims 1 to 6, wherein a housing chamber is formed between the first case and the second case, and the blood collection channel and the blood collection portion are disposed in the housing chamber.

8. The disposable cartridge of claim 7, wherein the first housing has a first channel recess formed therein, and the second housing has a second channel recess formed therein, the first channel recess and the second channel recess being disposed opposite to each other and together enclosing a channel recess for accommodating the blood collection channel.

9. The disposable blood collection set of claim 1, wherein the first positioning assembly comprises a first protrusion and a second protrusion disposed on the first housing, the second positioning assembly comprises a first groove and a second groove disposed on the second housing, the first protrusion and the first groove are disposed adjacent to the channel groove and are engaged with each other, and the second protrusion and the second groove are disposed adjacent to the receiving groove and are engaged with each other.

10. The disposable blood collection set according to claim 1, wherein the blood collection part is a compressed filter paper, a cotton fiber or a porous polymer.

11. The disposable blood collection device of claim 1, comprising a protective cover covering the collection portion of the blood collection unit, wherein the protective cover comprises a fixing portion and a folding portion connected to each other, the fixing portion is fixedly connected to the blood collection unit, the folding portion can be folded around the fixing portion to shield or expose the collection portion of the blood collection unit, and the folding portion can enable the protective cover to form a support to support the blood collection unit to be vertically placed.

12. The disposable blood collection device of claim 11, wherein the folding portion comprises a first cover plate, a second cover plate and a connecting plate, the first cover plate is connected to the fixing portion and attached to one side surface of the collection portion, the second cover plate is attached to the other side surface of the collection portion, and the connecting plate connects the first cover plate and the second cover plate so that the first cover plate and the second cover plate surround the collection portion.