THERAPEUTIC FLUID INJECTION DEVICE

• US 20110190710A1
• Filed: 09/17/2010
• Published: 08/04/2011
• Est. Priority Date: 09/22/2009
• Status: Abandoned Application

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: MIYOSHI, Shunichiro, OKAZAKI, Yoshiro, SUGAHARA, Michihiro
• Application Number:
  US12/884,845
• Publication Number:
  US 20110190710A1
• Time in Patent Office: Days
• US Class Current: 604/207
• CPC Class Codes: A61F 9/00 Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand caps with means for protecting the eyes A42B1/018; visors for helmets A42B3/22; retractors A61B17/02; manipulators specially adapted for use in surgery A61B34/70; appliances to aid invalids to move about A61H3/00; exercisers for the eyes A61H5/00; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C
• CPC Class Codes: A61M 2025/1047 having centering means, e.g. balloons having an appropriate shape
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 25/0084 being one or more injection needles
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/178 Syringes

Abstract

Therapeutic solution of an amount corresponding to a plurality of injections is injected with the distal end kept inserted in the pericardial cavity via an access port formed to penetrate under the xiphoid process. Provided is a therapeutic-solution injecting device (1) including an injection needle (3) for puncturing living tissue; a tube (6) having the injection needle (3) at a distal end thereof; a syringe connector (5) provided at a proximal end of the tube (6) and allowing connection and disconnection of a therapeutic-solution syringe (4) containing therapeutic solution; and a three-way valve (8) provided in the tube (6) between the syringe connector (5) and the injection needle (3) and having an open end.

Claims

1. A therapeutic-solution injecting device comprising:

an injection needle for puncturing living tissue;

a tube having the injection needle at a distal end thereof;

a syringe connector provided at a proximal end of the tube and allowing connection and disconnection of a therapeutic-solution syringe containing therapeutic solution; and

a three-way valve provided in the tube between the syringe connector and the injection needle and having an open end.

2. A therapeutic-solution injecting device according to claim 1,

wherein a medium syringe containing a medium is connected at the proximal end of the tube, and

wherein a valve is provided between the medium syringe and the syringe connector.

3. A therapeutic-solution injecting device according to claim 1, further comprising a vibrator for vibrating the tube, provided on the tube on the proximal-end side with respect to the syringe connector.

4. A therapeutic-solution injecting device according to claim 2, further comprising a vibrator for vibrating the tube, provided on the tube on the proximal-end side with respect to the syringe connector.

6. A therapeutic-solution injecting device according to claim 1, further comprising:

a bubble detecting unit that detects a bubble flowing through the tube; and

an indicator that indicates detection of the bubble when the bubble is detected inside the tube by the bubble detecting unit.

7. A therapeutic-solution injecting device according to claim 2, further comprising:

a bubble detecting unit that detects a bubble flowing through the tube; and

an indicator that indicates detection of the bubble when the bubble is detected inside the tube by the bubble detecting unit.

9. A therapeutic-solution injecting device according to claim 1, further comprising:

a therapeutic-solution detecting unit that detects therapeutic solution flowing through the tube; and

an indicator that indicates detection of the therapeutic solution when the therapeutic solution is detected inside the tube by the therapeutic-solution detecting unit.

10. A therapeutic-solution injecting device according to claim 2, further comprising:

a therapeutic-solution detecting unit that detects therapeutic solution flowing through the tube; and

an indicator that indicates detection of the therapeutic solution when the therapeutic solution is detected inside the tube by the therapeutic-solution detecting unit.

12. A therapeutic-solution injecting device according to claim 1, further comprising:

an irradiating unit that irradiates the inside of the tube with light;

a photodetector that detects diffused light diffused inside the tube or transmitted light transmitted through the tube; and

a calculating unit that calculates the concentration of the therapeutic solution flowing through the tube based on the intensity of the diffused light or transmitted light detected by the photodetector.

13. A therapeutic-solution injecting device according to claim 2, further comprising:

an irradiating unit that irradiates the inside of the tube with light;

a photodetector that detects diffused light diffused inside the tube or transmitted light transmitted through the tube; and

a calculating unit that calculates the concentration of the therapeutic solution flowing through the tube based on the intensity of the diffused light or transmitted light detected by the photodetector.

15. A therapeutic-solution injecting device according to claim 1, wherein the tube has an inner diameter greater than or equal to 0.1 mm and less than or equal to 1 mm.

17. A therapeutic-solution injecting device according to claim 1, wherein the volume of the tube from the syringe connector to the open end of the three-way valve is greater than or equal to the volume of the therapeutic-solution syringe.

19. A therapeutic-solution injecting device according to claim 1, further comprising a volume changing mechanism that is provided at an intermediate point of the tube and that allows changing the volume of the tube from the syringe connector to the open end of the three-way valve to a volume greater than or equal to the volume of the therapeutic-solution syringe.

5. A therapeutic-solution injecting device comprising:

an injection needle for puncturing living tissue;

a tube having the injection needle at a distal end thereof;

a syringe connector provided at a proximal end of the tube and allowing connection and disconnection of a therapeutic-solution syringe containing therapeutic solution; and

a recess provided in the tube between the syringe connector and the injection needle and recessed upward on the inner surface of the tube.

8. A therapeutic-solution injecting device according to claim 5, further comprising:

a bubble detecting unit that detects a bubble flowing through the tube; and

an indicator that indicates detection of the bubble when the bubble is detected inside the tube by the bubble detecting unit.

11. A therapeutic-solution injecting device according to claim 5, further comprising:

a therapeutic-solution detecting unit that detects therapeutic solution flowing through the tube; and

an indicator that indicates detection of the therapeutic solution when the therapeutic solution is detected inside the tube by the therapeutic-solution detecting unit.

14. A therapeutic-solution injecting device according to claim 5, further comprising:

an irradiating unit that irradiates the inside of the tube with light;

a photodetector that detects diffused light diffused inside the tube or transmitted light transmitted through the tube; and

a calculating unit that calculates the concentration of the therapeutic solution flowing through the tube based on the intensity of the diffused light or transmitted light detected by the photodetector.

16. A therapeutic-solution injecting device according to claim 5, wherein the tube has an inner diameter greater than or equal to 0.1 mm and less than or equal to 1 mm.

18. A therapeutic-solution injecting device according to claim 5, wherein the volume of the tube from the syringe connector to the open end of the three-way valve is greater than or equal to the volume of the therapeutic-solution syringe.

20. A therapeutic-solution injecting device according to claim 5, further comprising a volume changing mechanism that is provided at an intermediate point of the tube and that allows changing the volume of the tube from the syringe connector to the open end of the three-way valve to a volume greater than or equal to the volume of the therapeutic-solution syringe.