CN112806993A - Blood sampling test tube subassembly - Google Patents
Blood sampling test tube subassembly Download PDFInfo
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- CN112806993A CN112806993A CN202110031324.1A CN202110031324A CN112806993A CN 112806993 A CN112806993 A CN 112806993A CN 202110031324 A CN202110031324 A CN 202110031324A CN 112806993 A CN112806993 A CN 112806993A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150236—Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150244—Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150251—Collection chamber divided into at least two compartments, e.g. for division of samples
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
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Abstract
The utility model provides a blood sampling test tube subassembly, including heparin tube body and heparin tube urceolus, the heparin tube body is top open-ended blind hole structure, heparin tube top opening department is equipped with the heparin tube lid, the central point of heparin tube lid puts the department and is equipped with first patchhole, be equipped with the sealing plug in the first patchhole, form the blood sampling chamber between heparin tube and the sealing plug, the hollow structure of heparin tube urceolus for lining up, top opening department is equipped with the heparin tube outer cover, the central point of heparin tube outer cover puts the department and is equipped with the second patchhole, be equipped with sealed direction stopper in the second patchhole, be equipped with the heparin tube body in the heparin tube urceolus, the heparin tube body can be followed on this heparin tube urceolus length direction. On the one hand, the volume of the blood collection tube body can be reduced, the residual excessive blood volume on the inner surface of the blood collection tube body is reduced, the purpose of extracting less blood samples is achieved, on the other hand, the blood collection device is not only suitable for the blood collection process, but also suitable for being used on various blood sample tests and test equipment after the blood sample collection is finished.
Description
Technical Field
The invention relates to the technical field of blood collection, in particular to a blood collection test tube assembly.
Background
Blood sampling for testing can result in some loss of blood and, severely, can lead to anemia, thus increasing the risk of blood transfusion. Very low weight newborns, critically ill newborns have relatively low blood volume and are difficult to draw blood. It is reported that the loss of 1ml of blood of a very low-weight newborn corresponds to 1% of the lost blood volume, while the loss of more than 10% of blood at one time has adverse effects on the body, a multitubular blood sample is collected when the infant is hospitalized, and irregular blood collection is one of the risk factors causing anemia of the infant. The routine blood detection is almost a necessary examination item for each child patient, the detection amount of the instrument is about 100ul, the optimal blood collection amount is 1ml reported in the literature, and the existence of an invalid cavity of the blood collection tube is one of the reasons for the excessive collection.
In the first aspect, EDTA-K is currently commonly used2The tube wall of the vacuum blood collection tube has no exact scale mark, so that an operator cannot evaluate the specific blood collection amount in the blood collection process, and blood collection waste is caused; secondly, aiming at infants and patients with too thin blood vessels, large-area burns, poor blood circulation and the like, the blood sampling amount needs to be accurately controlled, and the accuracy of the sampling cannot be accurately controlled by simply setting a scale value on the outer wall of the traditional vacuum blood sampling tube; in the third aspect, the conventional evacuated blood collection tube has a large volume, and a large amount of blood sample remains on the inner wall of the conventional evacuated blood collection tube.
Disclosure of Invention
The invention aims to: to above-mentioned prior art not enough, provide one kind and can reduce the volume of heparin tube body on the one hand, reduce heparin tube body internal surface and remain too much blood volume, reach the purpose of drawing less blood sample to be applicable to infant and blood vessel thin, large tracts of land burn, the patient that blood circulation is not good etc, on the other hand not only is applicable to the blood sampling process, and be applicable to in addition after the blood collection finishes, the blood sampling test tube subassembly that uses on various blood sample chemical examination, check out test set.
The invention adopts the technical scheme that the invention discloses a blood sampling test tube component, which comprises a blood sampling tube body and a blood sampling tube outer cylinder, wherein the blood sampling tube body is of a blind hole structure with an opening at the top end, a blood sampling tube cover is arranged at the opening at the top end of the blood sampling tube, a first inserting hole is arranged at the central position of the blood sampling tube cover, a sealing plug is arranged in the first inserting hole, a blood collecting cavity is formed between the blood collecting tube body and the blood collecting tube body cover, the outer cylinder of the blood sampling tube is a through hollow structure, the opening at the top end is provided with an outer cylinder cover of the blood sampling tube, a second inserting hole is arranged at the central position of the outer cylinder cover of the blood collecting tube, a sealing guide plug is arranged in the second inserting hole, be equipped with in the heparin tube urceolus the heparin tube body, the heparin tube body can be followed this heparin tube urceolus length direction and moved and locking up, down.
The blood sampling cavity from top to bottom divide into first section blood sampling cavity part, second section blood sampling cavity part, third section blood sampling cavity part, and first section blood sampling cavity part divide into the internal diameter tubular structure that gradually enlarges or the unchangeable tubular structure of internal diameter from top to bottom, second section blood sampling cavity part divide into the internal diameter tubular structure that gradually reduces from top to bottom, third section blood sampling cavity part divide into the semi-sphere tubular structure that the internal diameter reduces gradually from top to bottom, be provided with the internal thread on the inner peripheral wall of heparin tube urceolus, the heparin tube body is located be provided with on the outer peripheral wall of first section blood sampling cavity part match in the internal thread external screw thread of heparin tube urceolus, heparin tube body spiro union is in the heparin tube urceolus.
Further, the heparin tube body is located and is provided with a plurality ofly on the periphery wall of second section blood sampling chamber portion, be the sunken of ball shape, and should sunken to the heparin tube body is located and is protruding on the internal perisporium of second section blood sampling chamber portion, with the heparin tube body corresponds on the internal peripheral wall that is located second section blood sampling chamber portion and forms a plurality ofly, is the arch of ball shape, blood sampling test tube subassembly still includes rotary part, rotary part mainly comprises hob, rotatory claw and swing handle, the top tip of hob is provided with rotatory claw, and the bottom tip is provided with the swing handle, the top of rotatory claw sets up to the indent structure, and the indent structure of this rotatory claw can wrap up and laminate and be in the heparin tube is located second section blood sampling chamber portion and the corresponding outside part of third section blood sampling chamber portion and the heparin tube body is located the outer peripheral wall of second section blood sampling chamber portion, Be the sunken of ball shape, it is rotatory the swing handle of rotary part can drive heparin tube body rotation moves up and down along this heparin tube urceolus length direction, stops the rotation the swing handle of rotary part the external screw thread of heparin tube body with the internal thread of heparin tube urceolus makes under the meshing cooperation each other the heparin tube body for the heparin tube urceolus is in quiescent condition on this heparin tube urceolus length direction.
The blood sampling cavity is divided into a first section of blood sampling cavity part, a second section of blood sampling cavity part and a third section of blood sampling cavity part from top to bottom, the first section of blood sampling cavity part is of a cylindrical structure with the inner diameter gradually enlarged from top to bottom or of a cylindrical structure with the inner diameter unchanged, the second section of blood sampling cavity part is of a cylindrical structure with the inner diameter gradually reduced from top to bottom, the third section of blood sampling cavity part is of a semi-spherical structure with the inner diameter gradually reduced from top to bottom, two symmetrically arranged guide grooves are arranged on the inner peripheral wall surface of the outer cylinder of the blood sampling tube along the length direction of the outer cylinder of the blood sampling tube, any one of the inner side walls of the guide grooves corresponding to the upper end part and the lower end part of the outer cylinder of the blood sampling tube is provided with a first locking groove along the circumferential direction, namely, the end parts of each guide groove are provided with a first locking groove, and the blood sampling tube body is provided with, the blood sampling tube body is located the fixed two first guide blocks that are provided with on the peripheral wall face of first section blood sampling chamber part, these two first guide blocks match respectively in the direction recess that the blood sampling tube urceolus corresponds to, and be located first annular piston below.
Furthermore, a T-shaped groove is formed in the outer bottom of the blood collection tube body, the blood collection test tube assembly further comprises a push-pull component, the push-pull component mainly comprises a push-pull rod, a push-pull head and a push-pull handle, the push-pull head is arranged at the top of the push-pull rod, the push-pull handle is arranged at the bottom of the push-pull rod, the axial section of the push-pull head is in a T shape so as to be matched with the T-shaped groove in the outer bottom of the blood collection tube body, the push-pull handle of the push-pull component is pushed and pulled to drive the blood collection tube body and the first annular piston to move up and down along the length direction of the outer tube of the blood collection tube, when the push-pull handle of the push-pull component is pushed to move up until the first guide block is at the same height as the first locking groove in the upper end of the guide groove, the push-pull, and when the push-pull handle of the push-pull component is pushed to move downwards until the first guide block is at the same height with the first locking groove at the lower end of the guide groove, the push-pull component is rotated to circumferentially move the first guide block on the blood collection tube body until the first locking groove at the lower end of the guide groove is screwed in, so that the blood collection tube body is at a static state in the length direction of the blood collection tube outer cylinder relative to the blood collection tube outer cylinder.
Furthermore, a plurality of spherical bulges or a plurality of annular convex rings are arranged on the inner peripheral wall surface of the first section blood taking cavity part and/or the second section blood taking cavity part.
The blood sampling cavity is divided into a first section of blood sampling cavity part, a second section of blood sampling cavity part and a third section of blood sampling cavity part from top to bottom, the first section of blood sampling cavity part is of a cylindrical structure with gradually enlarged inner diameter from top to bottom or a cylindrical structure with invariable inner diameter, the second section of blood sampling cavity part is of a cylindrical structure with gradually reduced inner diameter from top to bottom, the third section of blood sampling cavity part is of a semi-spherical structure with gradually reduced inner diameter from top to bottom, two symmetrical guide gaps penetrating through the cylinder wall of the blood sampling tube outer cylinder are arranged on the peripheral wall surface of the blood sampling tube outer cylinder, second locking grooves with locking effect are arranged on the inner side wall of any one guide gap corresponding to the upper end part and the lower end part of the blood sampling tube outer cylinder along the circumferential direction, namely, the two end parts of each guide gap are respectively provided with one second locking groove, and a second annular piston is fixedly sleeved on the peripheral wall surface of the blood, the blood collection tube body is fixedly provided with two second guide blocks on the peripheral wall surface of the first section of the blood collection cavity part, the two second guide blocks are respectively matched in the guide gaps corresponding to the outer tube of the blood collection tube and are positioned below the second annular piston, the blood collection test tube assembly further comprises an annular moving ring, the moving ring is sleeved outside the outer tube of the blood collection tube, each second guide block extends out of the corresponding guide gap, the second guide block parts extending out of the guide gaps are fixedly connected with the inner side wall surface corresponding to the moving ring together, the moving ring is pushed and pulled, the blood collection tube body and the second annular piston can be driven to move up and down along the length direction of the outer tube of the blood collection tube, and when the moving ring is pushed to move up until the second guide blocks are at the same height with the second locking grooves at the upper ends of the guide gaps, the movable ring is rotated to enable the second guide block on the blood collection tube body to move circumferentially until the second guide block is screwed in the second locking groove at the upper end of the guide gap, so that the blood collection tube body is in a static state relative to the outer cylinder of the blood collection tube in the length direction of the outer cylinder of the blood collection tube, when the movable ring is pushed to move downwards until the second guide block is in a static state corresponding to the second locking groove at the lower end of the guide gap, the movable ring is rotated to enable the second guide block on the blood collection tube body to move circumferentially until the second guide block is screwed in the second locking groove at the lower end of the guide gap, so that the blood collection tube body is in a static state relative to the outer cylinder of the blood collection tube in the length direction of the outer cylinder of the blood collection tube.
Furthermore, a plurality of spherical bulges or a plurality of annular convex rings are arranged on the inner peripheral wall surface of the first section blood collecting cavity part and/or the second section blood collecting cavity part.
A blood sampling test tube assembly comprises a blood sampling tube inner tube, a blood sampling tube body, a threaded tube and a blood sampling tube outer tube, wherein the blood sampling tube inner tube is of a blind hole structure with an opening at the top end, a blood sampling tube inner tube cover is arranged at the opening at the top end of the blood sampling tube inner tube, a third insertion hole is formed in the central position of the blood sampling tube inner tube cover, a first sealing plug is arranged in the third insertion hole, a placement cavity for placing the blood sampling tube body is formed between the blood sampling tube inner tube and the blood sampling tube inner tube cover, a locking threaded hole is vertically formed in the central position of the inner bottom of the placement cavity, a locking stud is screwed in the locking threaded hole, the top end of the stud lock is flush with the lowest position of the inner bottom of the placement cavity, the bottom end of the stud extends out of the placement cavity, a screwing head is arranged, and the inner diameter of the, the depth is greater than the height of the blood sampling tube body, a plurality of square holes are arranged on the part of the outer bottom surface of the inner tube of the blood sampling tube, which is positioned around the locking threaded hole, a strip-shaped groove is vertically arranged on the inner peripheral wall surface, a strip-shaped raised line matched with the strip-shaped groove is arranged on the outer peripheral wall surface of the blood sampling tube body, the blood sampling tube body is of a blind hole structure with an opening at the top end, a blood sampling tube body cover is arranged at the opening at the top end of the blood sampling tube body, a fourth insertion hole is arranged at the central position of the blood sampling tube body cover, a second sealing plug is arranged in the fourth insertion hole, a blood sampling cavity is formed between the blood sampling tube body and the blood sampling tube body cover, the blood sampling cavity is divided into a first section of blood sampling cavity part, a second section of blood sampling cavity part and a third section of blood sampling, the second section of blood sampling cavity part is of a cylindrical structure with the inner diameter gradually reduced from top to bottom, the third section of blood sampling cavity part is of a semi-spherical structure with the inner diameter gradually reduced from top to bottom, a plurality of protrusions in the shape of a sphere are arranged on the inner peripheral wall surface of the second section of blood sampling cavity part of the blood sampling tube body, a locking hole is arranged at the central position of the outer bottom of the blood sampling tube body and is divided into an upper section and a lower section, the upper section of locking hole is provided with an internal thread matched with the locking stud, the aperture of the lower section of locking hole is gradually enlarged from top to bottom to play a role of guiding the locking stud,
the blood sampling tube body is assembled in the placement cavity through a threaded tube and a spring, an opening edge at the upper end of the threaded tube is fixedly connected with a first sealing plug, an opening edge at the lower end of the threaded tube is fixedly connected with a second sealing plug, the first sealing plug, the threaded tube and the second sealing plug are coaxially arranged, one end of the spring is fixedly connected with the bottom of the blood sampling tube body, the other end of the spring is fixedly connected with the inner bottom of the placement cavity, the outer tube of the blood sampling tube is of a through hollow structure, an outer tube cover is arranged at the opening at the top end of the outer tube cover, a fifth insertion hole is formed in the center of the outer tube cover, a sealing guide plug is arranged in the fifth insertion hole, an inner tube of the blood sampling tube is assembled in the outer tube of the blood sampling tube, the inner tube of the blood sampling tube can move up and down along the length direction of the outer tube of the blood sampling tube and can be locked, and therefore, The lower removal, be provided with the internal thread on the interior wall of heparin tube urceolus, be provided with on the heparin tube inner tube periphery wall match in the internal screw thread of heparin tube urceolus, the spiro union of heparin tube inner tube is in the heparin tube urceolus.
Further, the blood sampling test tube assembly also comprises a rotating part, the rotating part mainly comprises an outer rotating rod, an outer rotating claw part, a large rotating handle, an inner rotating rod and a small rotating handle, the outer rotating rod is of a hollow structure, internal threads are arranged on the inner peripheral wall surface, the end part of the top end is provided with the outer rotating claw part, the end part of the bottom end is provided with the outer rotating handle, the top end of the outer rotating claw part is a cylinder, the top surface of the cylinder is provided with a plurality of square lugs matched with square holes at the outer bottom of the inner blood sampling tube barrel, the inner rotating rod is axially screwed in the outer rotating rod in a threaded connection mode, the top end surface of the inner rotating rod is provided with a sleeve structure matched with a screwing head, the bottom end of the inner rotating rod is provided with the inner rotating handle, the top of the rotating part is attached to the outer bottom of the inner blood sampling tube barrel, so that the, the screwing head is matched and attached with the sleeve structure, the external screwing handle of the rotating part is rotated to drive the inner cylinder of the blood sampling tube to move up and down along the length direction of the outer cylinder of the blood sampling tube, the external screwing handle of the rotating part is stopped rotating, the inner cartridge is held in a stationary state with respect to the outer cartridge in a longitudinal direction of the outer cartridge under engagement of the external thread of the inner cartridge and the internal thread of the outer cartridge, when keeping outer swing handle motionless, it is rotatory when the interior swing handle of rotary part shifts up, the locking double-screw bolt shifts up, and locking double-screw bolt top jack-up promotes the heparin tube body moves up, until the bar sand grip of heparin tube body supports tightly the upper end tip of the bar recess of heparin tube inner tube, in order to restrict the heparin tube body is followed the length direction of heparin tube inner tube removes.
The invention has the beneficial effects that: the invention can reduce the volume of the blood collection tube body, reduce the residual excessive blood volume on the inner surface of the blood collection tube body, achieve the purpose of extracting less blood samples, and is suitable for infants and patients with too thin blood vessels, large-area burns, poor blood circulation and the like, and is suitable for the blood collection process and various blood sample test and inspection equipment after the blood collection is finished.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a sectional view of example 1;
FIG. 2 is a sectional view of the blood collection tube body in example 1;
reference numerals: 1-blood collection tube body; 11-a blood collection tube cover; 12-a sealing plug; 13-external thread; 14-dishing; 15-bulge; 2-outer cylinder of blood collection tube; 21-internal thread; 22-sealing guide plug; 23, a blood collecting tube outer cylinder cover; 3-a rotating part; 31-a rotating rod; 32-rotating the pawl; 33-rotating handle.
FIG. 3 is a sectional view of embodiment 2;
FIG. 4 is a sectional view of the blood collection tube body according to example 2;
reference numerals: 41-a guide groove; 42 — a first locking groove; 43 — a first annular piston; 44 — a first guide block; 45- "T" type groove; 46-a push-pull rod; 47-push-pull head; 48-a push-pull handle.
FIG. 5 is a sectional view of embodiment 3;
FIG. 6 is a sectional view of the blood collection tube body according to example 3;
reference numerals: 51-a guide gap; 52-second locking groove; 53 — second annular piston; 54 — a second guide block; 55-moving ring.
FIG. 7 is a sectional view of the inner cylinder of the blood collection tube, the main body of the blood collection tube, and the threaded tube in example 4;
fig. 8 is a sectional view of a rotary member in embodiment 4.
Reference numerals: 61-inner cylinder of blood collection tube; 62, a threaded pipe; 63-inner cylinder cover of blood collection tube; 64 — a first sealing plug; 65-locking stud; 66-square hole; 67-strip-shaped grooves; 68-blood collection tube body; 69-blood collection tube body cover; 70-a second sealing plug; 71-a spring; 72-external rotation rod; 73-external rotating claw; 74-big handle; 75-internal rotation rod; 76-small rotating handle; 77-square bump; 78-sleeve construction.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The technical solution of the present invention is described in detail with reference to a plurality of embodiments.
The first embodiment is as follows:
referring to fig. 1 to 2, the present embodiment discloses a blood collection test tube assembly including a blood collection tube body 1 and a blood collection tube outer cylinder 2.
The utility model discloses a blood collection tube, including blood collection tube body 1, this blood collection tube body 1, the central point of this blood collection tube lid 11 is put and has been offered first patchhole, is provided with sealing plug 12 in this first patchhole, forms the blood collection chamber between this blood collection tube body 1 and this blood collection tube body 1 lid, the hollow structure of blood collection tube urceolus 2 for lining up, the top end opening part is provided with blood collection tube outer tube cover 23, and the central point of this blood collection tube outer tube cover 23 puts and has seted up the second patchhole, is provided with sealed guide plug 22 in this second patchhole, be equipped with in the blood collection tube urceolus 2 blood collection tube body 1, blood collection tube body 1 can follow 2 length direction of this blood collection tube urceolus, move down and the locking.
The blood sampling cavity is divided into a first section blood sampling cavity part, a second section blood sampling cavity part and a third section blood sampling cavity part from top to bottom, the first section blood sampling cavity part is a cylindrical structure with the inner diameter gradually enlarged from top to bottom or a cylindrical structure with the inner diameter unchanged, the second section blood sampling cavity part is a cylindrical structure with the inner diameter gradually reduced from top to bottom, and the third section blood sampling cavity part is a semi-spherical structure with the inner diameter gradually reduced from top to bottom. Wherein the volume of the blood collecting cavity is much smaller than that of an EDTA-K2 blood collecting tube in the conventional blood routine detection. When the blood sampling device is used, the blood sampling cavity is filled without observing the quantity of collected blood samples deliberately.
Be provided with internal thread 21 on the interior wall of heparin tube urceolus 2, heparin tube body 1 is located be provided with on the outer wall of first section blood sampling chamber part match in the external screw thread 13 of 2 internal thread 21 of heparin tube urceolus, heparin tube body 1 spiro union is in heparin tube urceolus 2.
The blood sampling tube body 1 is provided with a plurality of sunken 14 that are the ball shape on being located the periphery wall of second section blood sampling chamber part, and this sunken 14 to the blood sampling tube body 1 is located protruding 15 on the internal perisporium of second section blood sampling chamber part, with correspond on the inner peripheral wall that blood sampling tube body 1 is located second section blood sampling chamber part and form a plurality of, be the protruding 15 of ball shape. This kind of sunken 14 that is the sphere shape and the protruding 15 that is the sphere shape that matches of design not only change blood collection tube body 1's pipe wall shape to make operating personnel rock after blood collection tube body 1, the slower bottom of piling up this blood collection tube body 1 of blood sample that the patient gathered increases flow time, and extension patient's blood sample forms the time of coagulation condition, can cooperate rotary part 3 to use moreover, and is supplementary the upper and lower removal of blood collection tube body 1 can be for rotary part 3 the rotatory impetus is found to blood collection tube body 1 outsole.
Blood sampling test tube subassembly still includes rotary part 3, rotary part 3 mainly comprises swing arm 31, rotatory claw 32 and swing handle 33 (during the use, this rotary part 3's rotatory claw 32 parcel and laminating completely on the outer bottom of blood sampling pipe body 1, set up the matching on the upper surface of rotatory claw 32 the convex part of sunken 14), the top tip of swing arm 31 is provided with rotatory claw 32, and the bottom tip is provided with swing handle 33, the top of rotatory claw 32 sets into indent structure, and this rotatory claw 32's indent structure can wrap up and laminate and be in the blood sampling pipe is located the second section blood sampling chamber portion and the corresponding outside part of third section blood sampling chamber portion and blood sampling pipe body 1 is located the sunken 14 that is the ball shape on the periphery wall of second section blood sampling chamber portion.
By rotating the rotary handle 33 of the rotary member 3, the blood collection tube body 1 can be driven to rotate and move up and down along the longitudinal direction of the blood collection tube outer tube 2, and the rotary handle 33 of the rotary member 3 stops rotating, so that the blood collection tube body 1 is in a stationary state relative to the blood collection tube outer tube 2 in the longitudinal direction of the blood collection tube outer tube 2 by the engagement of the external thread 13 of the blood collection tube body 1 and the internal thread 21 of the blood collection tube outer tube 2.
The inside of the blood collection tube body 1 may be in a vacuum state. The aperture is seted up to 2 upper segments of heparin tube urceolus, avoids upwards or twist downwards when heparin tube body 1, heparin tube body 1 and top heparin tube urceolus part forms and hinders the power that heparin tube body 1 removed. The volume of the spherical bulge 15 is reduced from top to bottom. The sealing plugs 12 are located directly below the seal guide plug 22 and are arranged coaxially with each other. When the rotation member 3 is screwed so that the blood collection tube body 1 is located at the highest position in the blood collection tube outer tube 2, the sealing plug 12 and the sealing guide plug 22 can be attached to each other. The sealing plug 12 and the sealing guide plug 22 may be conventional mature rubber plugs. Be provided with scale mark and scale interval on the periphery wall of heparin tube body 1.
Before using, heparin tube body 1 is located the highest position department in the heparin tube urceolus 2 to can directly use when conveniently gathering patient's blood sample (gather patient's blood sample in-process, the blood taking needle of use passes sealed guide plug 22, sealing plug 12 in proper order, until entering into last section position or middle section position department in the heparin tube body 1). After the collection finishes the blood sample of the patient, twist rotary part 3 soon, drive blood sampling tube body 1 moves down, until moving to can satisfy and put into blood sample chemical examination, check equipment with whole blood sampling test tube subassembly and use (chemical examination, the chemical examination on the check equipment, check needle pass sealed guide plug 22, sealing plug 12 in proper order, until entering into bottom surface position department in the blood sampling tube body 1). In this embodiment, on one hand, the volume of the blood collection tube body 1 can be reduced, and the design of the interior of the blood collection tube body 1 (i.e., the blood collection cavity is divided into a first section blood collection cavity part, a second section blood collection cavity part and a third section blood collection cavity part from top to bottom, the first section blood collection cavity part is a cylindrical structure with gradually enlarged inner diameter from top to bottom or a cylindrical structure with unchanged inner diameter, the second section blood collection cavity part is a cylindrical structure with gradually reduced inner diameter from top to bottom, and the third section blood collection cavity part is a hemispherical structure with gradually reduced inner diameter from top to bottom) can reduce the amount of excessive blood left on the inner surface of the blood collection tube body 1, so as to achieve the purpose of collecting less blood, and be suitable for infants and patients with too thin blood vessels, large-area burns, poor blood circulation and the like, and on the other hand, and the connection relationship of the threads is suitable for the blood sampling process and is suitable for being used on various blood sample testing and inspection equipment after the blood sample is collected.
The blood sampling test tube component can be made of completely transparent materials.
The blood collection tube body 1 and the blood collection tube body cover 11, and the blood collection tube outer tube 2 and the blood collection tube outer tube cover 23 may be fixedly connected (for example, by pressure welding, bonding, or the like), or detachably connected (for example, by screwing).
Example two:
referring to fig. 3 and 4, the other structure of the second embodiment is the same as that of the first embodiment, except that:
two symmetrically-arranged guide grooves 41 are formed in the inner peripheral wall surface of the blood collection tube outer cylinder along the length direction of the blood collection tube outer cylinder, a first locking groove 42 for locking is formed in the inner side wall of any one of the guide grooves 41 corresponding to the upper end part and the lower end part of the blood collection tube outer cylinder along the circumferential direction, namely, a first locking groove 42 is formed in each end part of each guide groove 41 (the position of the first locking groove 42 on the guide groove 41 and the height of the first locking groove on the whole blood collection tube body are determined according to actual conditions), a first annular piston 43 is fixedly sleeved on the outer peripheral wall surface of the first section of blood collection cavity part of the blood collection tube body, two first guide blocks 44 are fixedly arranged on the outer peripheral wall surface of the first section of blood collection cavity part of the blood collection tube body, and the two first guide blocks 44 are respectively matched in the guide grooves 41 corresponding to the blood collection tube outer cylinder, and is located below said first annular piston 43.
Further, the outer bottom of the blood collection tube body is provided with a T-shaped groove 45,
the blood sampling test tube assembly further comprises a push-pull component, the push-pull component mainly comprises a push-pull rod 46, a push-pull head 47 and a push-pull handle 48, the push-pull head 47 is arranged at the top of the push-pull rod 46, the push-pull handle 48 is arranged at the bottom of the push-pull rod 46, and the axial section of the push-pull head 47 is in a T-shaped shape so as to be matched with the T-shaped groove 45 at the outer bottom of the blood sampling tube body.
Pushing and pulling the push-pull handle 48 of the push-pull member can drive the blood collection tube body and the first annular piston 43 to move up and down along the length direction of the outer tube of the blood collection tube.
When the push-pull handle 48 of the push-pull member is pushed to move upwards until the first guide block 44 is at the same height as the first locking groove 42 at the upper end of the guide groove 41, the first guide block 44 on the blood collection tube body can move circumferentially by rotating the push-pull member until the first guide block is screwed into the first locking groove 42 at the upper end of the guide groove 41, so that the blood collection tube body is in a static state relative to the outer cylinder of the blood collection tube in the length direction of the outer cylinder of the blood collection tube; wherein the outer contour of the first locking groove 42 and the outer contour of the first guide block 44 are matched to each other.
When the push-pull handle 48 of the push-pull member is pushed to move downward until the first guide block 44 is at the same height as the first locking groove 42 at the lower end of the guide groove 41, the first guide block 44 on the blood collection tube body can move circumferentially by rotating the push-pull member until the first guide block is screwed into the first locking groove 42 at the lower end of the guide groove 41, so that the blood collection tube body is in a stationary state relative to the outer cylinder of the blood collection tube in the length direction of the outer cylinder of the blood collection tube.
Furthermore, a plurality of spherical bulges or a plurality of annular convex rings are arranged on the inner peripheral wall surface of the first section blood taking cavity part and/or the second section blood taking cavity part.
Through the heparin tube body with the heparin tube urceolus is mutually supported to and the relation of connection in this kind of guide way 41, guide block and locking groove between each other, obtain not only being applicable to the blood sampling process, be applicable to moreover after the collection blood sample finishes, use on various blood sample chemical examination, check out test set.
The small hole can be seted up to heparin tube urceolus upper segment to guarantee the heparin tube body is in the heparin tube urceolus smoothly moves.
EXAMPLE III
Referring to fig. 5 and 6, the other structure of the second embodiment is the same as that of the first embodiment, except that:
two symmetrical guide gaps 51 penetrating the cylinder wall of the outer cylinder of the blood collection tube are arranged on the peripheral wall surface of the outer cylinder of the blood collection tube,
the corresponding arbitrary one of upper and lower both ends tip of heparin tube urceolus guiding gap 51's inside wall on all set up the second locking groove 52 that plays the locking effect along the circumferential direction, every guiding gap 51's both ends tip all has a second locking groove 52 promptly (second locking groove 52 is in position on the guiding gap 51 and the height on whole heparin tube body are confirmed according to actual conditions).
The blood collection tube body is fixedly sleeved with a second annular piston 53 on the peripheral wall surface of the first section of blood collection cavity part, the blood collection tube body is fixedly provided with two second guide blocks 54 on the peripheral wall surface of the first section of blood collection cavity part, the two second guide blocks 54 are respectively matched in the corresponding guide gaps 51 of the outer tube of the blood collection tube and are positioned below the second annular piston 53,
the blood sampling test tube component also comprises a moving ring 55 in an annular shape, the moving ring 55 is sleeved outside the outer cylinder of the blood sampling test tube, each second guide block 54 extends out of a corresponding guide gap 51, the parts of the second guide blocks extending out of the guide gaps 51 are fixedly connected with the corresponding inner side wall surface of the moving ring 55,
pushing and pulling the moving ring 55 to drive the blood collection tube body and the second annular piston 53 to move up and down along the length direction of the blood collection tube outer cylinder, rotating the moving ring 55 to move the second guide block 54 on the blood collection tube body circumferentially until the second guide block 54 is at the same height as the second locking groove 52 at the upper end of the guide gap 51, screwing the second guide block 54 into the second locking groove 52 at the upper end of the guide gap 51 to keep the blood collection tube body stationary in the length direction of the blood collection tube outer cylinder relative to the blood collection tube outer cylinder, pushing the moving ring 55 to move down until the second guide block 54 is at the same height as the second locking groove 52 at the lower end of the guide gap 51, rotating the moving ring 55 to move the second guide block 54 on the blood collection tube body circumferentially, the cartridge main body is kept stationary with respect to the cartridge outer tube in the longitudinal direction thereof up to the second lock groove 52 screwed into the lower end of the guide gap 51.
Furthermore, a plurality of spherical bulges or a plurality of annular convex rings are arranged on the inner peripheral wall surface of the first section blood collecting cavity part and/or the second section blood collecting cavity part.
Through the heparin tube body with the heparin tube urceolus is mutually supported to and this kind of guide gap 51, guide block, locking groove and shift ring 55's relation of connection between each other, obtain not only being applicable to the blood sampling process, be applicable to moreover after the blood sampling finishes, use on various blood specimen chemical examination, check out test set.
The small hole can be seted up to heparin tube urceolus upper segment to guarantee the heparin tube body is in the heparin tube urceolus smoothly moves.
Example four
See fig. 7 and 8 for the following: the other structure of the second embodiment is the same as that of the first embodiment, except that: the embodiment discloses a blood sampling test tube assembly, which comprises a blood sampling tube inner cylinder 61, a blood sampling tube body 68, a threaded tube 62 and a blood sampling tube outer cylinder, wherein the blood sampling tube inner cylinder 61 is of a blind hole structure with an opening at the top end, a blood sampling tube inner cylinder cover 63 is arranged at the opening at the top end of the blood sampling tube inner cylinder 61, a third insertion hole is arranged at the central position of the blood sampling tube inner cylinder cover 63, a first sealing plug 64 is arranged in the third insertion hole, a placing cavity for placing the blood sampling tube body 68 is formed between the blood sampling tube inner cylinder 61 and the blood sampling tube inner cylinder cover 63, a locking threaded hole is vertically arranged at the central position of the inner bottom of the placing cavity, a locking stud 65 (for example, a bolt) is screwed in the locking threaded hole, the top end of the locking stud 65 is flush with the lowest position of the inner bottom of the placing cavity, the bottom end, the inner diameter of the placing cavity is equal to the outer diameter of the blood collection tube body 68, and the depth of the placing cavity is larger than the height of the blood collection tube body 68.
The outer bottom surface of heparin tube inner tube 61 is located locking screw hole part all around and is provided with a plurality of quad slit 66, and the vertical bar groove 67 of having seted up on the interior wall surface, be provided with on the periphery wall surface of heparin tube body 68 match in the bar sand grip of bar groove 67. In order to ensure that the blood collection tube body 68 can be smoothly installed in the inner tube 61, the upper end of the strip-shaped groove 67 extends upward beyond the top edge of the inner tube 61, and after the blood collection tube body 68 is smoothly installed in the inner tube 61, the upper end of the strip-shaped groove 67 is bonded and sealed by a strip-shaped block.
The blood collection tube body 68 is a blind hole structure with an open top end, a blood collection tube body cover 69 is arranged at the open top end of the blood collection tube body 68, a fourth insertion hole is formed in the center of the blood collection tube body cover 69, a second sealing plug 70 is arranged in the fourth insertion hole, a blood collection cavity is formed between the blood collection tube body 68 and the blood collection tube body cover 69, the blood collection cavity is divided into a first section blood collection cavity part, a second section blood collection cavity part and a third section blood collection cavity part from top to bottom, the first section blood collection cavity part is a cylindrical structure with gradually enlarged inner diameter from top to bottom or a cylindrical structure with unchanged inner diameter, the second section blood collection cavity part is a cylindrical structure with gradually reduced inner diameter from top to bottom, the third section blood collection cavity part is a hemispherical structure with gradually reduced inner diameter from top to bottom, and a plurality of blood collection tube bodies 68 are arranged on the inner peripheral wall surface of the second section, The arch that is the ball shape, the outer bottom central point department of putting of heparin tube body 68 is provided with the locking hole, the locking hole falls into upper and lower two sections, upper segment locking hole have match in the internal thread of locking double-screw bolt 65, the aperture in hypomere locking hole grow gradually from top to bottom to play the effect for locking double-screw bolt 65 direction.
The blood collection tube body 68 is assembled in the placing cavity through the threaded tube 62 and the spring 71, an opening edge at the upper end of the threaded tube 62 is fixedly connected with the first sealing plug 64, an opening edge at the lower end of the threaded tube 62 is fixedly connected with the second sealing plug 70, the first sealing plug 64, the threaded tube 62 and the second sealing plug 70 are coaxially arranged, one end of the spring 71 is fixedly connected with the bottom of the blood collection tube body 68, and the other end of the spring 71 is fixedly connected with the inner bottom of the placing cavity.
The outer cylinder of the blood collection tube is of a through hollow structure, an outer cylinder cover is arranged at the opening at the top end of the outer cylinder cover, a fifth insertion hole is formed in the center of the outer cylinder cover, and a sealing guide plug is arranged in the fifth insertion hole.
The blood collection tube inner cylinder 61 is assembled in the blood collection tube outer cylinder, and the blood collection tube inner cylinder 61 can move up and down and be locked along the length direction of the blood collection tube outer cylinder, so that the blood collection tube body 68 can move up and down along the length direction of the blood collection tube outer cylinder synchronously.
Be provided with the internal thread on the interior peripheral wall face of heparin tube urceolus, be provided with on the heparin tube inner tube 61 periphery wall face match in the internal thread external screw thread of heparin tube urceolus, heparin tube inner tube 61 spiro union is in the heparin tube urceolus.
Further, the blood collection test tube assembly further comprises a rotating component which mainly comprises an external rotating rod 72, an external rotating claw 73, a large rotating handle 74, an internal rotating rod 75 and a small rotating handle 76.
The outer rotary rod 72 is of a hollow structure, internal threads are arranged on the inner peripheral wall surface, an outer rotary claw part 73 is arranged at the end part of the top end, an outer rotary handle is arranged at the end part of the bottom end, the top end of the outer rotary claw part 73 is a cylinder, and a plurality of square bumps 77 matched with the square holes 66 at the outer bottom of the inner cylinder 61 of the blood collection tube are arranged on the top surface of the cylinder.
The external rotation handle of the rotating part is rotated to drive the inner cylinder 61 of the blood collection tube to move up and down along the length direction of the outer cylinder of the blood collection tube, and the external rotation handle of the rotating part stops rotating, so that the inner cylinder 61 of the blood collection tube is in a static state relative to the outer cylinder of the blood collection tube in the length direction of the outer cylinder of the blood collection tube under the condition that the external thread of the inner cylinder 61 of the blood collection tube and the internal thread of the outer cylinder of the blood collection tube are meshed and matched with each other.
When the external rotation handle is kept still and the internal rotation handle of the rotating component is rotated to move upwards, the locking stud 65 moves upwards, the top of the locking stud 65 jacks up and pushes the blood collection tube body 68 to move upwards until the strip-shaped convex strip of the blood collection tube body 68 abuts against the upper end part of the strip-shaped groove 67 of the inner blood collection tube cylinder 61, so that the blood collection tube body 68 is limited to move along the length direction of the inner blood collection tube cylinder 61.
In this embodiment, on one hand, the volume of the blood collection tube body 68 can be reduced, and the design of the interior of the blood collection tube body 68 (that is, the blood collection cavity is divided into a first section blood collection cavity part, a second section blood collection cavity part and a third section blood collection cavity part from top to bottom, the first section blood collection cavity part is a cylindrical structure with gradually enlarged inner diameter from top to bottom or a cylindrical structure with unchanged inner diameter, the second section blood collection cavity part is a cylindrical structure with gradually reduced inner diameter from top to bottom, and the third section blood collection cavity part is a hemispherical structure with gradually reduced inner diameter from top to bottom) can reduce the amount of excessive blood left on the inner surface of the blood collection tube body 68, so as to achieve the purpose of collecting less blood, and be suitable for infants and patients with too thin blood vessels, large-area burns, poor blood circulation and the like, and on the other hand, through the cooperation among the, and the relation of connection between each other, obtain not only to be applicable to the blood sampling process, after the blood sampling finishes before blood sample chemical examination, inspection, vertically shake, can realize the blood sampling tube body 68 for the shake of blood sampling tube inner tube 61 longer time, upper and lower direction (guarantee that the blood sample in the blood sampling tube body 68 is in the mobile state all the time), in order to avoid the blood sample to condense together, be applicable to moreover after the blood sampling finishes, use on various blood sample chemical examination, check-out equipment.
The small hole can be seted up to heparin tube urceolus upper segment to guarantee heparin tube inner tube 61 is in the heparin tube urceolus smoothly moves.
The blood collection tube inner tube 61 and the blood collection tube inner tube cover 63 may be fixedly connected (e.g., pressure-bonded, etc.) or detachably connected (e.g., screwed).
The invention is suitable for EDTA anticoagulation tubes (for example, EDTA-K2 blood collection tubes in routine blood detection), and is test tubes without centrifugation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention.
Claims (10)
1. A blood collection tube assembly, comprising:
the blood sampling test tube component comprises a blood sampling tube body and a blood sampling tube outer cylinder,
the blood sampling tube body is of a blind hole structure with an opening at the top end, the opening at the top end of the blood sampling tube is provided with a blood sampling tube cover, the center of the blood sampling tube cover is provided with a first inserting hole, a sealing plug is arranged in the first inserting hole, a blood sampling cavity is formed between the blood sampling tube body and the blood sampling tube body cover,
the outer cylinder of the blood sampling tube is a through hollow structure, the opening at the top end is provided with an outer cylinder cover of the blood sampling tube, the center of the outer cylinder cover of the blood sampling tube is provided with a second inserting hole, a sealing guide plug is arranged in the second inserting hole,
be equipped with in the heparin tube urceolus the heparin tube body, the heparin tube body can be followed this heparin tube urceolus length direction and moved and locking up, down.
2. The blood collection tube assembly of claim 1, wherein:
the blood sampling cavity is divided into a first section blood sampling cavity part, a second section blood sampling cavity part and a third section blood sampling cavity part from top to bottom, the first section blood sampling cavity part is of a cylindrical structure with the inner diameter gradually enlarged from top to bottom or a cylindrical structure with the inner diameter unchanged, the second section blood sampling cavity part is of a cylindrical structure with the inner diameter gradually reduced from top to bottom, the third section blood sampling cavity part is of a semi-spherical structure with the inner diameter gradually reduced from top to bottom,
be provided with the internal thread on the interior peripheral wall face of heparin tube urceolus, the heparin tube body is located be provided with on the outer peripheral wall face of first section blood sampling chamber part match in the internal thread external screw thread of heparin tube urceolus, heparin tube body spiro union is in the heparin tube urceolus.
3. The blood collection tube assembly of claim 2, wherein:
the blood sampling tube body is provided with a plurality of spherical depressions on the peripheral wall surface of the second section of blood sampling cavity part, and the depressions protrude towards the inner peripheral wall surface of the second section of blood sampling cavity part, so that a plurality of spherical protrusions are correspondingly formed on the inner peripheral wall surface of the second section of blood sampling cavity part,
the blood collection tube assembly further comprises a rotating member,
the rotating component mainly comprises a rotating rod, a rotating claw part and a rotating handle,
the top end part of the rotary rod is provided with a rotary claw part, the bottom end part of the rotary rod is provided with a rotary handle, the top end of the rotary claw part is arranged into an inwards concave structure, the inwards concave structure of the rotary claw part can be wrapped and attached on the outer parts of the blood sampling tube corresponding to the second section blood sampling cavity part and the third section blood sampling cavity part and the spherical concave part of the blood sampling tube body on the peripheral wall surface of the second section blood sampling cavity part,
the rotation the swing handle of rotary part can drive heparin tube body rotation moves up and down along this heparin tube urceolus length direction, stops to rotate the swing handle of rotary part the external screw thread of heparin tube body with the internal thread of heparin tube urceolus makes under the meshing cooperation each other the heparin tube body for the heparin tube urceolus is in quiescent condition on this heparin tube urceolus length direction.
4. The blood collection tube assembly of claim 1, wherein:
the blood sampling cavity is divided into a first section blood sampling cavity part, a second section blood sampling cavity part and a third section blood sampling cavity part from top to bottom, the first section blood sampling cavity part is of a cylindrical structure with the inner diameter gradually enlarged from top to bottom or a cylindrical structure with the inner diameter unchanged, the second section blood sampling cavity part is of a cylindrical structure with the inner diameter gradually reduced from top to bottom, the third section blood sampling cavity part is of a semi-spherical structure with the inner diameter gradually reduced from top to bottom,
two guide grooves which are symmetrically arranged are arranged on the inner peripheral wall surface of the outer cylinder of the blood collection tube along the length direction of the outer cylinder of the blood collection tube, first locking grooves which play a locking role are arranged on the inner side wall of any one of the guide grooves corresponding to the end parts of the upper end and the lower end of the outer cylinder of the blood collection tube along the circumferential direction, namely, the end parts of the two ends of each guide groove are respectively provided with one first locking groove,
the blood sampling tube body is located the fixed cover is equipped with first annular piston on the periphery wall of first section blood sampling chamber portion, the blood sampling tube body is located fixed being provided with two first guide blocks on the periphery wall of first section blood sampling chamber portion, these two first guide blocks match respectively and be in the direction recess that the blood sampling tube urceolus corresponds, and be located first annular piston below.
5. The blood collection tube assembly of claim 4, wherein:
the outer bottom of the blood collection tube body is provided with a T-shaped groove,
the blood sampling test tube component also comprises a push-pull component which mainly comprises a push-pull rod, a push-pull head and a push-pull handle,
the top of the push-pull rod is provided with a push-pull head part, the bottom is provided with a push-pull handle,
the axial section of the push-pull head part is in a T shape to be matched with the T-shaped groove at the outer bottom of the blood collection tube body,
the push-pull handle of the push-pull component is pushed and pulled to drive the blood sampling tube body and the first annular piston to move up and down along the length direction of the outer tube of the blood sampling tube, when the push-pull handle of the push-pull component is pushed to move up until the first guide block is at the same height with the first locking groove at the upper end of the guide groove correspondingly, the push-pull component is rotated to enable the first guide block on the blood sampling tube body to move circumferentially until the first guide block is screwed into the first locking groove at the upper end of the guide groove, so that the blood sampling tube body is at a static state relative to the outer tube of the blood sampling tube in the length direction of the outer tube of the blood sampling tube, when the push-pull handle of the push-pull component is pushed to move down until the first guide block is at the same height with the first locking groove at the lower end of the guide groove correspondingly, the push-pull component is rotated to enable the first guide block, until the first locking groove is screwed into the lower end of the guide groove, the blood collection tube body is in a static state relative to the outer cylinder of the blood collection tube in the length direction of the outer cylinder of the blood collection tube.
6. The blood collection tube assembly of claim 4 or 5, wherein:
the inner peripheral wall surface of the first section blood taking cavity part and/or the second section blood taking cavity part is provided with a plurality of spherical bulges or a plurality of annular convex rings.
7. The blood collection tube assembly of claim 1, wherein:
the blood sampling cavity is divided into a first section blood sampling cavity part, a second section blood sampling cavity part and a third section blood sampling cavity part from top to bottom, the first section blood sampling cavity part is of a cylindrical structure with the inner diameter gradually enlarged from top to bottom or a cylindrical structure with the inner diameter unchanged, the second section blood sampling cavity part is of a cylindrical structure with the inner diameter gradually reduced from top to bottom, the third section blood sampling cavity part is of a semi-spherical structure with the inner diameter gradually reduced from top to bottom,
two symmetrical guide gaps penetrating the wall of the outer cylinder of the blood collection tube are arranged on the peripheral wall surface of the outer cylinder of the blood collection tube,
the inner side wall of any one of the guide gaps corresponding to the upper end part and the lower end part of the outer cylinder of the blood collection tube is provided with a second locking groove with locking function along the circumferential direction, namely, the end part of each guide gap is provided with a second locking groove,
the blood sampling tube body is fixedly sleeved with a second annular piston on the peripheral wall surface of the first section of the blood sampling cavity part, the blood sampling tube body is fixedly provided with two second guide blocks on the peripheral wall surface of the first section of the blood sampling cavity part, the two second guide blocks are respectively matched in the corresponding guide gaps of the outer cylinder of the blood sampling tube and are positioned below the second annular piston,
the blood sampling test tube component also comprises a moving ring in an annular shape, the moving ring is sleeved outside the outer cylinder of the blood sampling tube, each second guide block extends out of a corresponding guide gap, the part of the second guide block extending out of the guide gap is fixedly connected with the corresponding inner side wall surface of the moving ring,
pushing and pulling the moving ring to drive the blood collection tube body and the second annular piston to move up and down along the length direction of the outer tube of the blood collection tube, rotating the moving ring to enable the second guide block on the blood collection tube body to move circumferentially until the second guide block is screwed into the second locking groove at the upper end of the guide gap until the second guide block is at the same height as the second locking groove at the upper end of the guide gap, enabling the blood collection tube body to be in a static state relative to the outer tube of the blood collection tube in the length direction of the outer tube of the blood collection tube, pushing the moving ring to move downwardly until the second guide block is at the same height as the second locking groove at the lower end of the guide gap, rotating the moving ring to enable the second guide block on the blood collection tube body to move circumferentially until the second guide block is screwed into the second locking groove at the lower end of the guide gap, the blood collection tube body is in a stationary state relative to the blood collection tube outer tube in the longitudinal direction of the blood collection tube outer tube.
8. The blood collection tube assembly of claim 7, wherein:
the inner peripheral wall surface of the first section blood taking cavity part and/or the second section blood taking cavity part is provided with a plurality of spherical bulges or a plurality of annular convex rings.
9. A blood collection tube assembly, comprising:
the blood sampling test tube component comprises a blood sampling tube inner cylinder, a blood sampling tube body, a threaded tube and a blood sampling tube outer cylinder,
the inner tube of the blood collection tube is of a blind hole structure with an opening at the top end, an inner tube cover of the blood collection tube is arranged at the opening at the top end of the inner tube of the blood collection tube, a third insertion hole is arranged at the central position of the inner tube cover of the blood collection tube, a first sealing plug is arranged in the third insertion hole, a placing cavity for placing the blood collection tube body is formed between the inner tube of the blood collection tube and the inner tube cover of the blood collection tube, a locking threaded hole is vertically arranged at the central position of the inner bottom of the placing cavity, a locking stud is screwed in the locking threaded hole, the top end of the locking stud is flush with the lowest position of the inner bottom of the placing cavity, the bottom end of the locking stud extends out of the placing cavity and is provided with a screwing head, the inner diameter of the placing cavity,
the part of the outer bottom surface of the inner cylinder of the blood collection tube, which is positioned at the periphery of the locking threaded hole, is provided with a plurality of square holes, the inner peripheral wall surface of the inner cylinder of the blood collection tube is vertically provided with strip-shaped grooves, the outer peripheral wall surface of the body of the blood collection tube is provided with strip-shaped convex strips matched with the strip-shaped grooves,
the blood collection tube body is of a blind hole structure with an open top end, a blood collection tube body cover is arranged at the open top end of the blood collection tube body, a fourth insertion hole is formed in the center of the blood collection tube body cover, a second sealing plug is arranged in the fourth insertion hole, a blood collection cavity is formed between the blood collection tube body and the blood collection tube body cover, the blood collection cavity is divided into a first section blood collection cavity part, a second section blood collection cavity part and a third section blood collection cavity part from top to bottom, the first section blood collection cavity part is of a cylindrical structure with an inner diameter gradually enlarged from top to bottom or a cylindrical structure with an unchanged inner diameter, the second section blood collection cavity part is of a cylindrical structure with an inner diameter gradually reduced from top to bottom, the third section blood collection cavity part is of a hemispherical structure with an inner diameter gradually reduced from top to bottom, and a plurality of blood collection tube bodies are arranged on the, The central position of the outer bottom of the blood collection tube body is provided with a locking hole which is divided into an upper section and a lower section, the upper section locking hole is provided with an internal thread matched with the locking stud, the aperture of the lower section locking hole is gradually enlarged from top to bottom to play a role of guiding the locking stud,
the blood sampling tube body is assembled in the placing cavity through a threaded tube and a spring, the opening edge of the upper end of the threaded tube is fixedly connected with the first sealing plug, the opening edge of the lower end of the threaded tube is fixedly connected with the second sealing plug, the first sealing plug, the threaded tube and the second sealing plug are coaxially arranged, one end part of the spring is fixedly connected with the bottom of the blood sampling tube body, the other end part of the spring is fixedly connected with the inner bottom of the placing cavity,
the outer cylinder of the blood sampling tube is a through hollow structure, an outer cylinder cover is arranged at the opening at the top end, a fifth inserting hole is arranged at the central position of the outer cylinder cover, a sealing guide plug is arranged in the fifth inserting hole,
the inner blood collection tube cylinder is assembled in the outer blood collection tube cylinder and can move up and down along the length direction of the outer blood collection tube cylinder and be locked, so that the main body of the blood collection tube can move up and down along the length direction of the outer blood collection tube cylinder synchronously,
be provided with the internal thread on the interior circumference wall of heparin tube urceolus, be provided with on the heparin tube inner tube periphery wall match in the internal thread external screw thread of heparin tube urceolus, the heparin tube inner tube spiro union be in the heparin tube urceolus.
10. The blood collection tube assembly of claim 9, wherein:
the blood collection tube assembly further comprises a rotating member,
the rotating component mainly comprises an outer rotating rod, an outer rotating claw part, a large rotating handle, an inner rotating rod and a small rotating handle,
the external rotary rod is of a hollow structure, internal threads are arranged on the inner peripheral wall surface, an external rotary claw part is arranged at the top end part, an external rotary handle is arranged at the bottom end part, the top end of the external rotary claw part is a cylinder, a plurality of square lugs matched with square holes at the outer bottom of the inner cylinder of the blood sampling tube are arranged on the top surface of the cylinder,
the inner rotary rod is axially screwed in the outer rotary rod in a threaded connection mode, the top end surface of the inner rotary rod is provided with a concave sleeve structure matched with the screwing head, the bottom end of the inner rotary rod is provided with an inner rotary handle,
the top of the rotating component is jointed with the outer bottom of the inner cylinder of the blood sampling tube, so that the square lug is matched and jointed with the square hole, the screwing head is matched and jointed with the sleeve structure,
the external rotation handle of the rotating component is rotated to drive the inner blood sampling tube cylinder to move up and down along the length direction of the outer blood sampling tube cylinder, the external rotation handle of the rotating component is stopped rotating, and the inner blood sampling tube cylinder is in a static state relative to the outer blood sampling tube cylinder in the length direction of the outer blood sampling tube cylinder under the condition that the external thread of the inner blood sampling tube cylinder and the internal thread of the outer blood sampling tube cylinder are meshed and matched with each other,
when keeping the outer handle that revolves motionless, it is rotatory when the interior handle that revolves of rotary part shifts up, the locking double-screw bolt shifts up, locking double-screw bolt top jack-up promotes the heparin tube body moves up, until the bar sand grip of heparin tube body supports tightly the upper end tip of the bar recess of heparin tube inner tube, in order to restrict the heparin tube body is followed the length direction of heparin tube inner tube removes.
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| Publication number | Publication date |
|---|---|
| CN112806993B (en) | 2022-09-27 |
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