Disposable Automatic Painless Safe Hemostix

• US 20130035708A1
• Filed: 04/21/2011
• Published: 02/07/2013
• Est. Priority Date: 04/22/2010
• Status: Active Grant

• Current Assignee: Lin Wang
• Original Assignee: Lin Wang
• Inventors: Wang, Lin
• Granted Patent: US 9,554,734 B2
• Time in Patent Office: Days
• US Class Current: 606/172
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150198 Depth adjustment mechanism at the proximal end of the carrier of the piercing element
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• CPC Class Codes: A61B 5/150916 by blocking components, e.g. piston, driving device or fluid passageway
• CPC Class Codes: A61B 5/15109 Fully automatically triggered, i.e. the triggering does not require a deliberate action by the user, e.g. by contact with the patient's skin
• CPC Class Codes: A61B 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/15144 comprising driving means, e.g. a spring, for retracting the piercing unit into the housing

Abstract

A disposable safety lancet device employed in an automated and painless procedure includes an outer casing, an inner sleeve, a lancet assembly and a spring. A lancet tube is provided in the lancet assembly. One end of the lancet assembly is snapped in the inner sleeve, and the other end is extended into the outer casing. Interlock fixing faces and protrusions are provided on the inner sleeve. Interlock guiding slopes and protrusion stoppers are provided on the inner wall of the outer casing. One end of the interlock engages the interlock fixing face, and the other end engages the interlock guiding slope. A lancing operation for taking blood can be simply performed only by turning wing plates having rib portions, aligning a blood taking aperture, and pushing the outer casing. After the lancing operation, the lancet tip is retracted into the inner sleeve, which prevents a second use by the fixation between the inner sleeve and the outer casing. Additionally, the lancet device can control the depth of lancing operation.

Claims

1. A disposable automatic painless safe hemostix, comprising:

a jacket (1) is provided with a falcula-oriented slant (133) and a male fitting limit reinforcement (12) at its inner wall;

a inner sleeve (2) is provided with a falcula fixing surface (23) and a male fitting (25);

a needle module (3) is nested into the inner sleeve (2) at its one end and extends into the jacket (1) at the other end; and

the needle module (3) is provided with a puncturing needle tube (4) at its inside and a falcula (34), wherein the falcula (34) fits the falcula fixing surface (23) at its one end and the falcula-oriented slant (133) at the other end;

a spring (5).

2. The disposable automatic painless safe hemostat according to claim 1, wherein the inner wall of jacket (1) is provided with an inner sleeve closed fixing convex reinforcement (134), the inner sleeve closed fixing convex reinforcement (134) is provided with an emboss (1341), wherein the outer wall of inner sleeve (2) is provided with a groove (28) that fits the emboss (1341).

3. The disposable automatic painless safe hemostat according to claim 1, wherein the falcula (34) comprises a falcula connecting reinforcement (341) and a falcula button (342), the falcula connecting reinforcement (341) is connected with the falcula (34) and extends to the right end, the falcula button (342) is provided at the right end of falcula connecting reinforcement (341) and is also provided with a falcula interface (3421) to fit the falcula fixing surface (23).

4. The disposable automatic painless safe hemostat according to claim 1, wherein the inner sleeve (2) is provided with a needle module shifting cavity (21) inside it, the needle module shifting cavity (21) is provided with a needle module limiting end face (213) at its left end, the needle module limiting end face (213) is provided with a blood sampling puncture (22), the blood sampling puncture (22) is provided with a contacting surface of blood sampling position (223) at its outer edge, the inner sleeve (2) is provided with a strip sliding wing (24) in the top and bottom and the male fitting (25) is provided on the strip sliding wing (24), the strip sliding wing (24) is provided with a falcula fixing surface (23) at its right end.

5. The disposable automatic painless safe hemostat according to claim 1, wherein the needle module (3) comprises a needle point protecting pole (32) and a spring mounting pole (37), and the spring (5) is mounted on the spring mounting pole (37), wherein the needle point protecting pole (32) is provided with a reinforcement wing plate (31) at its left end, the blood sampling puncture (22) is provided with a reinforcement wing plate groove (221) inside it, the needle point protecting pole (32) is a hexagonal prism and is provided with an indentation (33) that is apt to be broken.

6. The disposable automatic painless safe hemostat according to claim 5, wherein the spring mounting pole (37) is a cylinder and is provided with a needle point exposure length adjusting column (372) at its right end.

7. The disposable automatic painless safe hemostat according to claim 1, wherein the jacket (1) is provided with an inner sleeve shifting cavity (13) inside it at its left end, the inner sleeve shifting cavity (13) is provided with a falcula-oriented slant (133) at its top and bottom of right end ;

the jacket (1) is provided with a spring mounting pole shifting hole (14) inside it at its right end, the spring mounting pole shifting hole (14) is provided with a spring limiting step (143) inside it., the spring limiting step (143) is provided with a spring mounting hole (141) at its left side and with a spring mount pole extending hole (142) at its right side, the aperture of spring mounting hole (141) is larger than that of spring mount pole extending hole (142), the diameter of spring (5) is larger than the aperture of spring mount pole extending hole (142), outside of the jacket (1) is provided with a male fitting shifting groove (11), the male fitting shifting groove (11) is provided with a male fitting limit reinforcement (12) at its left side.

8. The disposable automatic painless safe hemostat according to claim 5, wherein the spring mounting pole (37) is provided with an antiskid convex reinforcement (371) and the wall of spring mounting hole (141) is provided with a convex reinforcement (1411).

9. The disposable automatic painless safe hemostat according to claim 4, wherein the strip sliding wing (24) of inner sleeve (2) is provided with a sliding wing slant (27) at its right end and the actuating main body (35) is provided with a slant (36) at its right end.

10. The disposable automatic painless safe hemostat according to claim 1, wherein the exterior front and rear walls of inner sleeve (2) are provided with an automatic assembling convex reinforcement (26), the front and rear walls of jacket (1) is provided with a square indentation (16) at its left end and with an antiskid convex reinforcement (15) at its right end.