SYRINGE SET FOR BALLOON CATHETER

• US 20080221515A1
• Filed: 05/20/2008
• Published: 09/11/2008
• Est. Priority Date: 05/13/2004
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: NAGAMATSU, Ryuji
• Granted Patent: US 8,672,881 B2
• Time in Patent Office: Days
• US Class Current: 604/97.02
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1018 Balloon inflating or inflation-control devices
• CPC Class Codes: A61M 25/10182 Injector syringes
• CPC Class Codes: A61M 25/10187 Indicators for the level of inflation or deflation
• CPC Class Codes: A61M 5/008 Racks for supporting syringes or needles A61M5/001 takes precedence

Abstract

A syringe holder which is capable of holding a plurality of types of syringes used for expanding a balloon catheter so as to be capable of being detached and attached is proposed. Preferably, a clearance is provided between the syringe holder and the syringe, so that gas can come into sufficient contact therewith during sterilizing treatment. The syringe holder in this arrangement can be formed, for example, by forming a plurality of grooves which are similar to the shape of the syringe and slightly larger than the syringe on a sheet formed of resilient member. Preferably, the shape is devised to prevent dropping off of the syringe from the syringe holder.

Claims

1. A syringe set for a balloon catheter at least comprising;

a first syringe having a first capacity to expand a balloon catheter to a size corresponding to the first capacity, the first syringe having a side air outlet hole to define the first capacity;

a second syringe having a second capacity to expand the balloon catheter to a size corresponding to the second capacity, the second syringe having a side air outlet hole to define the second capacity, the second capacity being larger than the first capacity, the diameter of the outer circumference of the second syringe being larger than that of the first syringe;

a syringe holder at least having a first holding part to fit to a part of the outer circumference of the first syringe for holding the first syringe in a removable manner and a second holding part to fit to a part of the outer circumference of the second syringe for holding the second syringe in a removable manner.

2. The syringe set for a balloon catheter according to claim 1,

wherein the holding parts are arranged in order of sizes.

3. The syringe set for a balloon catheter according to claim 1,

wherein each holding part has a surface that restricts a longitudinal movement of a plunger of the corresponding syringe to prevent the plunger from dropping off.

4. The syringe set for a balloon catheter according to claim 1, wherein the holding parts are formed to provide an allowance with respect to a surface contour of a corresponding syringe, a respectable inner surface of each holding part including at least one protrusion.

5. The syringe set for a balloon catheter according to claim 18, wherein the holding parts have a non-circular cross-section which is substantially orthogonal to the direction of a length thereof.

6. The syringe set for a balloon catheter according to claim 1, wherein the holding parts are formed with a flat portion for constraining rotation of a syringe coming into abutment with a flange of the syringe.

7. The syringe set for a balloon catheter according to claim 1, wherein the holding parts are formed with an opening for allowing a distal portion on a side of a connecting portion for connecting a syringe with the balloon catheter to project therefrom.

8. The syringe set for a balloon catheter according to claim 1, wherein the holding parts include a storage groove, the storage groove including an opening for inserting a syringe.

9. The syringe set for a balloon catheter according to claim 1, wherein the storage groove includes a projection at an upper portion thereof for preventing a stored syringe from dropping off.

10. The syringe set for a balloon catheter according to claim 18, wherein the syringe holder is resilient, so when a syringe is inserted therein, the opening is widened by resilient deformation.

11. The syringe set for a balloon catheter according to claim 1, wherein the storage groove comprises at least a cylinder storage groove for storing a cylinder of the syringe, a flange storage groove for storing the flange of the syringe, and a plunger storage groove for storing a plunger of the syringe in communication with each other.

12. The syringe set for a balloon catheter according to claim 1, wherein the cylinder storage groove has a size smaller than the flange of the syringe so that the cylinder of the syringe is prevented from moving in an axial direction and dropping off.

13. The syringe set for a balloon catheter according to claim 1, wherein the plunger storage groove is closed on one end surface so as to prevent the plunger of the syringe from coming apart from the cylinder and dropping off.

14. The syringe set for a balloon catheter according to claim 1, wherein the storage groove constrains rotation of the syringe in a circumferential direction.

15. The syringe set for a balloon catheter according to claim 1, in combination with at least one syringe stored in a corresponding holding part of the syringe holder, to form a syringe set for a balloon catheter.

16. The syringe set for a balloon catheter according to claim 15, wherein the syringe set includes a balloon catheter.

17. The syringe set for a balloon according to claim 15, wherein the syringe set is enclosed in a sterilized package.

18. The syringe set for a balloon catheter according to claim 17, wherein the syringe set is enclosed in a single sterilized package.