Insertion device

• US 9,629,958 B2
• Filed: 04/05/2011
• Issued: 04/25/2017
• Est. Priority Date: 10/07/2008
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Deck, Frank, Hoerauf, Christian, Keil, Michael, Konya, Ahmet, Weiss, Thomas, Kube, Oliver, Ebert, Karl-Peter
• Primary Examiner(s): YABUT, DIANE D
• Application Number:
  US13/079,957
• Publication Number:
  US 20110230891A1
• Time in Patent Office: 2,212 Days
• Field of Search: 606108, 604 9301
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00407 Ratchet means
• CPC Class Codes: A61B 2017/2912 transmission of forces to actuating rod or piston
• CPC Class Codes: A61B 2017/2923 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/3409 including needle or instrument drives
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/6846 specially adapted to be brought in contact with an internal body part, i.e. invasive
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

An insertion device includes an insertion needle holder and a drive mechanism for linearly moving the insertion needle holder in a puncturing direction. The insertion needle holder also includes at least one actuating element for actuating a drive mechanism. The drive mechanism converts a driving motion of the actuating element, which extends transversely or opposite to the puncturing direction, into a puncturing motion of the insertion needle holder.

Claims

1. An insertion device comprising:

an insertion needle holder,

a drive mechanism for linearly moving the insertion needle holder in a puncturing direction, wherein the drive mechanism includes a rotor and a connecting rod, wherein the rotor includes a toothed wheel and wherein the connecting rod is coupled to the rotor at the first end of the connecting rod, the connecting rod further extending from the first end to an opposite second end that is coupled to the insertion needle holder, and

at least one gripping arm extending transversely or opposite to the puncturing direction that is coupled in meshed relationship to the toothed wheel of the rotor so that movement of the at least one gripping arm sets the rotor of the drive mechanism in motion, wherein the drive mechanism converts a driving motion of the at least one gripping arm into a rotary motion of the rotor and the rotary motion of the rotor is converted into a linear motion of the connecting rod which moves the insertion needle holder in the puncturing direction, wherein the at least one gripping arm and the drive mechanism are configured so that movement of the insertion needle holder in the puncturing direction occurs during the driving motion of the at least one gripping arm and wherein the drive mechanism converts the driving motion of the at least one gripping arm into retraction motion of the insertion needle holder immediately after the puncturing motion.

2. The insertion device according to claim 1, wherein the drive mechanism does not include an energy accumulator.

3. The insertion device according to claim 1, wherein the drive motion of the at least one gripping arm is a swiveling motion.

4. The insertion device according to claim 1, wherein the at least one gripping arm includes a rack.

5. The insertion device according to claim 1, wherein the drive mechanism is disposed in a housing, out of which the at least one gripping arm extends.

6. The insertion device according to claim 1, wherein two gripping arms are diametrically opposed.

7. The insertion device according to claim 6, wherein the two gripping arms move in the opposite direction when a puncturing motion occurs.

8. The insertion device according to claim 6, wherein the two gripping arms move toward one another when a puncturing motion occurs.

9. The insertion device according to claim 1, further comprising a linear guide for the insertion needle holder.

10. The insertion device according to claim 1, further comprising a crank connecting the first end of the connecting rod to the rotor, wherein the crank converts the rotary motion of the rotor into the linear motion of the connecting rod.

11. An insertion system comprising:

an insertion device including;

an insertion needle holder;

a drive mechanism for linearly moving the insertion needle holder in a puncturing direction, wherein the drive mechanism includes a rotor and a connecting rod, wherein the rotor includes a toothed wheel and wherein the connecting rod is coupled to the rotor at a first end of the connecting rod, the connecting rod further extending from the first end to an opposite second end that is coupled to the insertion needle holder;

at least one gripping arm extending transversely or opposite to the puncturing direction that is coupled in meshed relationship to the toothed wheel of the rotor so that movement of the at least one gripping arm sets the rotor of the drive mechanism in motion, wherein the drive mechanism converts a driving motion of the at least one gripping arm into a rotary motion of the rotor and the rotary motion of the rotor is converted into a linear motion of the connecting rod which moves the insertion needle holder in the puncturing direction, wherein the at least one gripping arm and the drive mechanism are configured so that the movement of the insertion needle holder in the puncturing direction occurs during the driving motion of the at least one gripping arm; and

a sensor holder, wherein the insertion device comprises a coupling mechanism that, for insertion, holds the sensor holder against the insertion device and is actuated by the drive mechanism at the end of an insertion procedure to detach the sensor holder from the insertion device,

wherein the drive mechanism converts the driving motion of the at least one gripping arm into retraction motion of the insertion needle holder immediately after the puncturing motion.

12. The insertion system according to claim 11, further comprising a crank connecting the first end of the connecting rod to the rotor, wherein the crank converts the rotary motion of the rotor into the linear motion of the connecting rod.

13. An insertion device comprising:

an insertion needle holder,

a drive mechanism for linearly moving the insertion needle holder in a puncturing direction, wherein the drive mechanism includes a rotor and a connecting rod, wherein the rotor includes a toothed wheel and wherein the connecting rod is coupled to the rotor at a first end of the connecting rod, wherein the drive mechanism does not include an energy accumulator, the connecting rod further extending from the first end to an opposite second end that is coupled to the insertion needle holder, and

at least one gripping arm extending transversely or opposite to the puncturing direction that is coupled in meshed relationship to the toothed wheel of the rotor to drive the rotor of the drive mechanism, wherein the drive mechanism converts a driving motion of the at least one gripping arm into a rotary motion of the rotor and the rotary motion of the rotor is converted into a linear motion of the connecting rod which moves the insertion needle holder in the puncturing direction, wherein the at least one gripping arm and the drive mechanism are configured so that movement of the insertion needle holder in the puncturing direction occurs during the driving motion of the at least one gripping arm; and

wherein the drive mechanism converts the driving motion of the at least one gripping arm into retraction motion of the insertion needle holder immediately after the puncturing motion.