Lancing device

• US 9,782,113 B2
• Filed: 02/27/2014
• Issued: 10/10/2017
• Est. Priority Date: 03/01/2013
• Status: Active Grant

• Current Assignee: Sysmex Corporation
• Original Assignee: Sysmex Corporation
• Inventors: Asakura, Yoshihiro
• Primary Examiner(s): NGUYEN, TUAN VAN
• Application Number:
  US14/192,465
• Publication Number:
  US 20140249561A1
• Time in Patent Office: 1,321 Days
• Field of Search: 606181, 606182
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• 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 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150984 Microneedles or microblades
• CPC Class Codes: A61B 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• 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 5/15128 comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit

Abstract

A lancing device includes: a cover section, a part of which is provided with an opening; a main body held on the cover section and configured to be movable in a predetermined direction from the opening relative to the cover section; a lancing unit which is launched in the predetermined direction; and an operating section configured to launch the lancing unit when the operating section is pushed by applying a force in the predetermined direction, wherein the lancing unit is launched when the force is applied to the operating section in the predetermined direction with regulating a movement of the main body in the predetermined direction, and the main body moves, instead of pushing the operating section, by applying the force in the predetermined direction without regulating the movement of the main body in the predetermined direction is disclosed.

Claims

1. A lancing device for puncturing a skin of a subject, comprising:

a tubular cover section having a first opening at one end and a second opening at the other end;

a tubular main body having one end and the other end opposite to the one end and arranged to directly slide into and out of the first opening of the cover section, such that the one end of the main body is arranged inside of the cover section, the other end of the main body is arranged outside of the cover section, and the main body is configured to be movable in a predetermined direction relative to the cover section;

a lancing unit housed in the main body and launched in the predetermined direction from the other end of the main body;

an operating section installed to the one end of the main body and configured to be pushed by applying a force in the predetermined direction through the second opening of the cover section;

a biasing unit installed in the main body and configured to bias the lancing unit in the predetermined direction; and

a locking unit installed in the main body and configured to lock a bias of the biasing unit and to release a lock of the biasing unit;

wherein the locking unit releases the lock, the biasing unit biases the lancing unit, the lancing unit is launched and the main body remains at a first position relative to the cover section when the subject presses the other end of the tubular main body against the skin of the subject and applies a force to the operating section in the predetermined direction through the second opening, and

wherein when the other end of the tubular main body is not pressed against of the skin of the subject, the main body is configured to move from the first position to a second position relative to the cover section without releasing the lock of the locking unit and the lancing unit is not launched in response to the force is applied to the operating section in the predetermined direction through the second opening.

2. The lancing device of claim 1, wherein the biasing unit is an elastic body.

3. The lancing device of claim 1, wherein the main body is configured to return the first position relative to the cover section after the main body has moved from the first position to the second position relative to the cover section to cause the biasing unit to transition from a non-energized state to an energized state and cause the locking unit to lock the biasing unit and maintain the lock.

4. The lancing device of claim 1, wherein the main body comprises a guide part for guiding the movement in the predetermined direction relative to the cover section between the first position and the second position.

5. The lancing device of claim 1, wherein

the cover section is configured to be held by a subject;

and

the operating section is configured to be operated by a hand of the subject which holds the cover section.

6. The lancing device of claim 1, wherein the lancing unit is a fine needle tip having a plurality of needles.

7. The lancing device of claim 1, wherein the second opening is smaller than the first opening, and the tubular main body is not able to be inserted into the cover section through the second opening.

8. A lancing device for puncturing a body of a subject, comprising:

a tubular cover section having a first opening at one end and a second opening at the other end; and

a tubular main body having one end and the other end opposite to the one end and comprising a tubular housing arranged to directly slide into and out of the first opening of the cover section, such that the one end of the main body is arranged inside of the cover section and the other end of the main body is arranged outside of the first opening of the cover section, a biasing unit provided inside the housing to launch a lancing unit from the other end of the main body in a predetermined direction, and a button for launching the lancing unit via the biasing unit, wherein

the main body comprises a guide part configured to guide a movement of the one end the main body relative to the cover section in the predetermined direction between a first position in the cover section and a second position closer to the first opening of the cover section than the first position,

the lancing unit is launched from the other end of the main body and the one end of the main body remains at the first position when the subject presses the other end of the tubular main body against the body of the subject and pushes the button in the predetermined direction through the second opening, and

the lancing unit is not launched from the other end of the main body and the one end of the main body moves from the first position to the second position when the subject pushes the button in the predetermined direction through the second opening without pushing the main body against the body of the subject.

9. The lancing device of claim 8, configured so that the biasing unit launches the lancing unit in the predetermined direction when the button is pushed in the predetermined direction while the main body is pressed in the opposite direction to the predetermined direction when the subject presses the other end of the tubular main body against the body of the subject.

10. The lancing device of claim 8 further comprising a locking unit for locking a bias of the biasing unit, and unlocking the lock in response to pushing the button, wherein

the locking unit unlocks the bias and the lancing unit is launched to the predetermined direction when the button is pushed in the predetermined direction with the subject pushing the main body against the body of the subject in the opposite direction to the predetermined direction,

and without pushing the main body against the body of the subject the main body moves relative to the cover section from the first position to the second position without releasing the lock of the locking unit when the button is pushed in the predetermined direction.

11. The lancing device of claim 10, wherein the main body is configured return to the first position relative to the cover section after the main body has moved from the first position to the second position relative to the cover section to cause the biasing unit to transition from a non-exerting state to an energized state, and cause the locking unit to lock the biasing unit and maintain the lock.

12. The lancing device of claim 8, wherein the biasing unit is an elastic body.

13. The lancing device of claim 8, wherein the lancing unit is a fine needle tip having a plurality of needles.

14. A lancing device for puncturing a skin of a subject, comprising:

a cover section having a tubular shape, a first opening at one end and a second opening at the other end;

a tubular main body having one end and the other end opposite to the one end and comprising a tubular housing arranged to directly slide into and out of the first opening of the cover section, such that the one end of the main body is arranged inside of the cover section and the other end of the main body is arranged outside of the first opening of the cover section, a biasing unit provided inside the housing and configured to launch a lancing unit from the other end of the main body in a predetermined direction, and a button for launching the lancing unit via the biasing unit wherein

the main body comprises a guide part configured to guide a movement of the one end the main body relative to the cover section in the predetermined direction between a first position in the cover section and a second position closer to the first opening of the cover section than the first position,

the lancing unit is launched from the other end of the main body and the one end of the main body remains at the first position when an user pushes the button in the predetermined direction through the second opening with pushing the main body in an opposite direction to the predetermined direction, and

the lancing unit is not launched from the other end of the main body and the one end of the main body moves from the first position to the second position when the user pushes the button in the predetermined direction through the second opening without pushing the main body in the opposite direction to the predetermined direction;

a biasing unit installed in the tubular inner housing and configured to bias the lancing unit in the predetermined direction; and

a locking unit installed in tubular inner housing and configured to lock a bias of the biasing unit and to release a lock of the biasing unit in response to an operation of the operating section;

wherein the locking unit releases the lock, the biasing unit biases the lancing unit, the lancing unit is launched and main body remains stationary at the first position relative to the cover section when the force is applied to the operating section in the predetermined direction through the second opening and the subject presses the other end of the main body against the skin of the subject, and

the main body moves from the first position to a second position relative to the cover section without releasing the lock of the locking unit, and the lancing unit is not launched when the subject presses the other end of the main body against the skin of the subject and the force is applied to the operating section in the predetermined direction through the second opening.

15. The lancing device of claim 14, wherein the tubular main body further comprises a tubular base, and wherein the first and second opening of the cover section are smaller than the tubular base.

16. The lancing device of claim 15, wherein the tubular base is not inserted into the cover section when the tubular inner housing is inserted into the cover section through the first opening.

17. The lancing device of claim 14, wherein the main body comprises a guide part for guiding the movement in the predetermined direction relative to the cover section.