CN111803092A

CN111803092A - Blood sampling device for blood sugar determination

Info

Publication number: CN111803092A
Application number: CN202010697857.9A
Authority: CN
Inventors: 袁静; 陈宏伟; 王保永
Original assignee: Luoyang Central Hospital
Current assignee: Luoyang Central Hospital
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-23

Abstract

The invention relates to a blood sampling device for measuring blood sugar, which belongs to the field of medical equipment and comprises an upper cover body, a middle shell and a lower cover body; the upper cover body is connected with the middle shell body through threads; an excitation device and a lower needle device are arranged in an inner cavity formed by the upper cover body, the middle cover body and the lower cover body; a control rod is arranged in the middle shell, a clamping groove is formed in the bottom end of the control rod, and a boss is arranged on the blood taking needle. The excitation device comprises a first base, a second base, an excitation spring and a lower pressing piece; the lower needle device comprises a movable button, a movable rod, a lower pressing rod and a lower pressing spring; the movable button is opposite to the movable rod; the bottom of the movable rod supports the lower pressing rod, and the lower pressing rod supports the fixing seat of the blood taking needle. Besides the normal blood collection, the blood collection device can also adjust the elasticity of the exciting spring and the exposure length of the blood collection needle through the spiral depth of the upper cover body and the middle shell body, so that the blood collection of special people is realized, meanwhile, the automatic needle setting is realized after the blood collection is completed, and the blood collection device is safe, convenient and reliable.

Description

Blood sampling device for blood sugar determination

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a blood sampling device.

Background

Diabetes is a chronic lifelong disease, and is a series of metabolic disorder syndromes of hypofunction of insulin caused by body dysfunction and sugar, protein, fat and the like induced by decreased sensitivity of target cells to insulin. With the continuous improvement of the living standard of China, the prevalence rate of diabetes mellitus shows a trend of rising year by year, and the health of human beings is seriously threatened.

At present, no method for radically treating diabetes exists at home and abroad, and most patients can control the state of illness through correct and reasonable treatment. However, if blood sugar is poorly controlled for a long period of time, various complications such as eye, heart, blood vessel, kidney, nerve damage, and organ insufficiency or failure may occur. Therefore, diabetics should pay attention to monitoring blood glucose levels.

In clinical work, the blood glucose concentration of peripheral capillaries of a patient is usually measured by a portable blood glucose meter. Research shows that the blood sugar value measured by finger tip blood sampling by adopting a natural outflow method is more accurate. A plurality of blood sampling devices for sampling blood at finger ends, such as blood sampling pens, exist in the prior art, but have certain defects more or less, such as difficulty in adjusting the puncture depth, troublesome replacement and needle removal of blood sampling needles, easiness in polluting pen caps, uncontrollable excitation of blood sampling needles and the like.

Disclosure of Invention

In order to solve the defects in the prior art, the invention aims to provide a blood sampling device for blood sugar measurement, which can not only finish normal blood sampling, but also adjust the elasticity of an excitation spring and the exposed length of a blood sampling needle by adjusting the spiral depth of an upper cover body and a middle shell body, realize blood sampling of special people, realize automatic needle insertion after the blood sampling is finished, and is safe, convenient and reliable.

In order to achieve the purpose, the invention adopts the specific scheme that:

a blood sampling device for blood sugar determination comprises an upper cover body, a middle shell body and a lower cover body which are sequentially connected from top to bottom; the upper cover body is connected with the middle shell through threads; the bottom end of the middle shell is movably connected with the top end of the lower cover body; an excitation device and a lower needle device are arranged in an inner cavity formed by the upper cover body, the middle shell and the lower cover body; a control rod is arranged in the middle shell, a clamping groove for mounting and fixing a blood taking needle is formed in the bottom end of the control rod, and a boss corresponding to the clamping groove is formed in the blood taking needle;

the excitation device comprises a first base arranged in the middle of the inner side wall of the middle shell, a second base arranged on the upper part of the control rod, an excitation spring positioned between the first base and the second base and a lower pressing piece connected above the control rod; the first base is positioned below the second base; the lower part protrudes out of the top end of the upper cover body;

the lower needle device comprises a movable button, a movable rod, a lower pressing rod and a lower pressing spring; one end of the movable rod is hinged with the outer side wall of the control rod, and the other end of the movable rod is downward and inclined towards the direction far away from the control rod; the rod body of the movable rod is connected with the control rod through an angle adjusting spring; the movable button is over against the rod body of the movable rod; the bottom end of the movable rod abuts against the lower pressing rod; the depression bar is an on right once right type, and includes horizontal pole and montant, the horizontal pole through push down the spring with the top of draw-in groove is connected, montant downwardly extending supports the fixing base of blood taking needle.

As a further optimization of the scheme, the blood taking needle comprises a needle head and a fixed seat for fixing the needle head; the upper part of the fixed seat is I-shaped and comprises a first boss and a second boss, and the protruding width of the second boss is larger than that of the first boss; the first boss is clamped in the clamping groove at the bottom end of the control rod; the second boss is located below the lower pressing rod, and the bottom end of the lower pressing rod props against the second boss.

As a further optimization of the above scheme, an internal thread is provided on the inner side wall of the upper cover body, an external thread is provided on the outer side wall of the upper portion of the middle shell body, and the internal thread of the upper cover body is connected with the external thread of the middle shell body.

As the further optimization to the above scheme, the bottom end of the middle shell and the top end of the lower cover body are connected through two symmetrically arranged connecting points, one of the connecting points is hinged, and the other connecting point is clamped and connected through a buckle.

As a further optimization of the above scheme, a flange is provided at the bottom end of the lower cover body.

Has the advantages that:

the blood sampling device simultaneously realizes the following three functions: 1. the control rod is controlled to move up and down through the lower pressing piece to realize blood sampling; 2. the elasticity of the exciting spring can be properly adjusted by changing the up-down relative relation of the upper cover body and the middle shell body through the rotation of the screw threads, and the blood sampling depth of the blood sampling needle can be adjusted within a certain range; 3. the automatic needle inserting can be realized after blood sampling is finished through the button, and secondary damage or infection caused by manual needle inserting misoperation is avoided.

The middle shell and the lower shell are movably connected, when the blood taking needle is installed, only the buckle on one connecting point needs to be opened, the hinge structure on the other connecting point ensures that the lower shell and the middle shell are not separated, the clamping groove at the bottom of the control rod is exposed, the first boss on the blood taking needle is randomly pressed into the clamping groove at the bottom of the control rod to realize the installation and the fixation of the blood taking needle, and the inconvenience in operation or the loss of part of components caused by the separation of the lower shell and the middle shell during each installation is avoided.

According to the blood sampling device, the extending edge extending outwards is arranged at the bottom end of the lower cover body, when the blood sampling device is used, the bottom end of the lower cover body is abutted against a blood sampling part, and the extending edge applies pressure to the periphery of the blood sampling part, so that pain in blood sampling can be dispersed.

Drawings

FIG. 1 is a schematic view of the blood collection device of the present invention after mounting a blood collection needle;

FIG. 2 is a schematic view of the blood drawing device of the present invention in an activated state;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic view of the construction of the lancet of the present invention;

in the figure: 1. a middle shell; 101. a first base; 2. an upper cover body; 3. a push-down member; 4. a control lever; 401. a second base; 5. an energizing spring; 6. a lower cover body; 601. edge extension; 602. buckling; 7. a blood collection needle; 701. a needle head; 702. a fixed seat; 7021. a first boss; 7022. a second boss; 8. an active button; 9. a lower pressure lever; 10. pressing down the spring; 11. a movable rod; 1101. an angle adjusting spring; 12. a transition rod; 13. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "width", "vertical", "lateral", "top", "bottom", "inner", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, and that the configuration and operation of the specific orientation, and thus, are not to be construed as limiting the present invention.

A blood sampling device for blood sugar determination comprises an upper cover body 2, a middle shell body 1 and a lower cover body 3 which are connected in sequence from top to bottom; the inner side wall of the upper cover body 2 is provided with an internal thread, the outer side wall of the upper part of the middle shell body 1 is provided with an external thread, and the internal thread of the upper cover body 2 is connected with the external thread of the middle shell body 1. The length of the upper part of the middle shell 1 extending into the upper cover body 2 can be adjusted by the upper cover body 2 and the middle shell 1 through screw thread rotation.

The bottom end of the middle shell 1 is movably connected with the top end of the lower cover body 3: the bottom of the middle shell 1 and the top end of the lower cover body 3 are connected through two symmetrically arranged connection points, one connection point is hinged, and the other connection point is clamped through a buckle.

An excitation device and a lower needle device are arranged in an inner cavity formed by the upper cover body 2, the middle shell body 1 and the lower cover body 6; a control rod 4 is arranged in the middle shell 1, and the bottom end of the control rod 4 is connected with a clamping groove 13 for mounting and fixing a blood taking needle through a transition rod 12 with a reduced diameter; the blood taking needle 7 comprises a needle 701 and a fixing seat 702 for fixing the needle 701; the upper part of the fixed seat 702 is i-shaped and comprises a first boss 7021 and a second boss 7022, and the protruding width of the second boss 7022 is greater than that of the first boss 7021; the first boss 7021 is clamped in the clamping groove 13 at the bottom end of the control rod 4; the second boss 7022 is located below the pressing rod 9, and the bottom end of the pressing rod 9 just props against the second boss 7022.

The excitation device comprises a first base 101 arranged in the middle of the inner side wall of the middle shell 1, a second base 401 arranged on the upper part of the control rod 4, an excitation spring 5 positioned between the first base 101 and the second base 401, and a lower pressing piece 6 connected above the control rod 4; the first base 101 is positioned below the second base 401; the lower pressing piece 6 protrudes out of the top end of the upper cover body 2, and the push type needle withdrawing and returning of the blood sampling device can be realized through the matching of the lower pressing piece 6 and the control rod 4.

The lower needle device comprises a movable button 8, a movable rod 11, a lower pressing rod 9 and a lower pressing spring 10; the upper end of the movable rod 11 is hinged with the outer side wall of the control rod 4, and the other lower end of the movable rod is downward and inclined towards the direction far away from the control rod 4; the rod body of the movable rod 11 is connected with the control rod 4 through an angle adjusting spring 1101; the movable button 8 is over against the rod body of the movable rod 8; the bottom end of the movable rod 11 props against the lower pressure rod 9; the lower pressure rod 9 is in an on-right-angled shape and comprises a cross rod and a vertical rod, the cross rod is connected with the top end of the clamping groove 13 through a lower pressure spring 10, and the lower pressure spring 10 is arranged on the outer side of the transition rod 12 and is positioned at the bottom end of the control rod 4 and the top end of the clamping groove 13; the vertical bar extends downward above the second boss 7022.

The bottom end of the lower cover body 6 is provided with an extension 601.

When the blood sampling device is used, the buckle 602 of the lower cover body 6 is unfastened when the blood sampling device is in a needleless state, the blood sampling needle 7 is clamped in the clamping groove 13 at the bottom end of the control rod 4, the blood sampling needle 7 is installed, and the buckle 602 is fixed; the blood sampling device is vertically propped against a blood sampling part, the pressing piece 3 is pressed, the needle head 701 of the blood sampling needle 7 is immediately exposed out of the bottom end of the lower cover body 6, and the blood sampling part is punctured for sampling blood. For special groups such as workers and drivers working throughout the year, thicker cocoons are distributed at the finger ends, a common blood sampling device is difficult to puncture or cannot complete blood sampling after puncture, the length of the middle shell 1 extending into the upper cover body 2 can be adjusted by rotating the upper cover body 2, the upper cover body 2 is rotated downwards, the exciting springs 5 positioned on the first base 101 and the second base 401 are compressed more greatly, the elasticity is stronger, the length of the needle head 701 of the blood sampling needle 7 exposed out of the bottom end of the lower cover body 2 is increased moderately, and the blood sampling part can be punctured by the thicker cocoons so as to complete blood sampling. After blood collection is finished, the lower cover body 6 and the middle shell body 1 are required to be separated from each other to manually take down the blood taking needle 7 in general, but part blood is still remained at the needle point of the blood taking needle 7, and the needle point is relatively sharp, so that secondary injury or cross infection is easy to occur. According to the blood sampling device, the two movable buttons 8 are symmetrically arranged on the middle shell 1, the movable buttons 8 are pinched and pressed after blood sampling is finished, the movable buttons 8 apply downward pressure to the lower pressure rod 9 through the movable rods 11, so that the lower pressure rod 9 moves downwards to apply downward pressure to the blood sampling needle 7 through the second boss 7022, the blood sampling needle 7 is enabled to be separated from the clamping groove 13 and directly fall into the sharp instrument recovery device, automatic needle discharging is finished, and the blood sampling device is completely convenient.

It should be noted that the above-mentioned embodiments illustrate rather than limit the scope of the invention, which is defined by the appended claims. It will be apparent to those skilled in the art that certain insubstantial modifications and adaptations of the present invention can be made without departing from the spirit and scope of the invention.

Claims

1. A blood collection device for blood glucose determination, characterized by: comprises an upper cover body (2), a middle shell body (1) and a lower cover body (6) which are connected in sequence from top to bottom; the upper cover body (2) is connected with the middle shell body (1) through threads; the bottom end of the middle shell (1) is movably connected with the top end of the lower cover body (6); an excitation device and a lower needle device are arranged in an inner cavity formed by the upper cover body (2), the middle shell body (1) and the lower cover body (6); a control rod (4) is arranged in the middle shell (1), a clamping groove (13) for mounting and fixing a blood taking needle is formed in the bottom end of the control rod (4), and a boss corresponding to the clamping groove (13) is arranged on the blood taking needle (7);

the excitation device comprises a first base (101) arranged in the middle of the inner side wall of the middle shell (1), a second base (401) arranged at the upper part of the control rod (4), an excitation spring (5) positioned between the first base (101) and the second base (401), and a lower pressing piece (3) connected above the control rod (4); the first base (101) is positioned below the second base (401); the lower pressing piece (3) protrudes out of the top end of the upper cover body (2);

the lower needle device comprises a movable button (8), a movable rod (11), a lower pressing rod (9) and a lower pressing spring (10); one end of the movable rod (11) is hinged with the outer side wall of the control rod (4), and the other end of the movable rod is inclined downwards and towards the direction far away from the control rod (4); the rod body of the movable rod (11) is connected with the control rod (4) through an angle adjusting spring (1101); the movable button (8) is over against the rod body of the movable rod (11); the bottom end of the movable rod (11) abuts against the lower pressing rod (9); depression bar (9) are an quarter type, including horizontal pole and montant, the horizontal pole through push down spring (10) with the top of draw-in groove (13) is connected, montant downwardly extending supports fixing base (702) of blood taking needle (7).

2. The lancing device for blood glucose measurement according to claim 1, wherein: the blood taking needle (7) comprises a needle head (701) and a fixing seat (702) for fixing the needle head (701); the upper part of the fixed seat (702) is I-shaped and comprises a first boss (7021) and a second boss (7022), and the protruding width of the second boss (7022) is greater than that of the first boss (7021); the first boss (7021) is clamped in a clamping groove (13) at the bottom end of the control rod (4); the second boss (7022) is located below the lower pressing rod (9), and the bottom end of the lower pressing rod (9) abuts against the second boss (7022).

3. The lancing device for blood glucose measurement according to claim 1, wherein: the inner side wall of the upper cover body (2) is provided with an internal thread, the outer side wall of the upper part of the middle shell (1) is provided with an external thread, and the internal thread of the upper cover body (2) is connected with the external thread of the middle shell (1).

4. The lancing device for blood glucose measurement according to claim 1, wherein: the bottom of well casing (1) with the top of lower lid (6) is connected through the tie point that two symmetries set up, and one of them tie point is for articulated, and buckle (602) joint is passed through to another one tie point.

5. The lancing device for blood glucose measurement according to claim 1, wherein: the bottom end of the lower cover body (6) is provided with an extending edge (601).