Syringe apparatus with pressure gauge and detachable timer

• US 5,449,344 A
• Filed: 11/05/1993
• Issued: 09/12/1995
• Est. Priority Date: 06/18/1992
• Status: Expired due to Fees

• Current Assignee: Merit Medical Systems, Inc.
• Original Assignee: Merit Medical Systems, Inc.
• Inventors: Lampropoulos, Fred P., Taylor, Steven R., Stout, Thomas D., Smith, A. Tony
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): TSOSIE, BRYAN
• Application Number:
  US08/148,464
• Time in Patent Office: 676 Days
• Field of Search: 604/96-100, 604/207, 604/208-211, 604/224, 606/192
• US Class Current: 604/97.03
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 25/10182 Injector syringes
• CPC Class Codes: A61M 25/10184 Means for controlling or monitoring inflation or deflation
• CPC Class Codes: A61M 25/10188 Inflation or deflation data displays

Abstract

A syringe apparatus for use with balloon-tipped catheters is disclosed having a pressure gauge and timer assembly. In one mode, the timer assembly displays the duration of a current event of inflation or deflation, and the duration of the most recent past event of inflation or deflation. In another mode, the timer assembly displays historical information showing the event number and duration of past events of inflation and deflation. The pressure gauge display and the timer assembly display are situated conveniently on the syringe assembly and in proximity to one another so as to enable a syringe operator to substantially simultaneously monitor durations of inflation and deflation without the need for an assistant, yet without requiring purchase or use of computerized monitors. In another mode, the timer assembly can be detached from the syringe assembly at the completion of an inflation procedure and then reused with another syringe assembly. In this mode, the pressure gauge is permanently mounted to the syringe assembly, or alternatively, it is mounted to the detachable timer assembly so as to also be reusable.

Claims

1. An apparatus for use in inflating a balloon-tipped catheter, comprising:

syringe means for generating sufficient pressure to inflate a balloon-tipped catheter;

pressure gauge means, attached to the syringe means, for measuring and displaying the pressure generated by the syringe means;

detachable and reusable timer means, removably attached to the syringe means as an integral part thereof, for measuring durations of separate events of inflation and deflation of the balloon-tipped catheter, said detachable and reusable timer means including;

display means for visually displaying the time durations measured by the detachable and reusable timer means since commencement of a current event of inflation and deflation, as applicable and wherein the display means further includes a display simultaneously showing the duration of the immediate past event of inflation and deflation, as applicable; and

first actuating means for commencing the timing of the duration of each successive event of inflation and deflation; and

attachment means on the syringe means for detachably receiving said detachable and reusable timer means as an integral part of the syringe means, and whereby the detachable and reusable timer means is also detachable from the syringe means for re-use with another syringe means.

2. An apparatus as defined in claim 1 wherein said detachable and reuseable timer means further comprises:

memory means for storing the duration of each event of inflation and deflation; and

second actuating means for causing the display means to display the historical duration of each event of inflation and deflation stored in the memory means.

3. An apparatus as defined in claim 1, wherein the display means comprises a liquid crystal display that is mounted and electrically connected to the detachable timer means.

4. An apparatus as defined in claim 1, wherein the pressure gauge means is mounted to said syringe means.

5. An apparatus as defined in claim 1, wherein the pressure gauge means is mounted to said detachable and reusable timer means, such that the pressure gauge means is detachable from the syringe means together with the detachable and reusable timer means.

6. An apparatus as defined in claim 1, wherein said attachment means comprises:

a housing, said housing being affixed to said syringe means and being sized and shaped so as to receive and detachably hold said detachable and reusable timer means.

7. An apparatus as defined in claim 6, wherein said housing comprises:

retaining means for maintaining said detachable and reusable timer means within said housing in a tight, yet releasable manner.

8. An apparatus for use in inflating a balloon-tipped catheter, comprising:

syringe means for generating sufficient pressure to inflate a balloon-tipped catheter;

pressure gauge means, mounted to said syringe means, for measuring and displaying the pressure generated by the syringe means;

detachable and reusable timer means, detachably mountable to said syringe means, for measuring durations of separate events of inflation and deflation of the balloon-tipped catheter, said detachable and reusable timer means including;

display means for visually displaying the time durations measured by the detachable and reusable timer means;

first actuating means for commencing the timing of the duration of each successive event of inflation and deflation;

memory means for storing the duration of each event of inflation and deflation; and

second actuating means for causing the display means to display the historical duration of each event of inflation and deflation stored in the memory means; and

attachment means, affixed to said syringe means, for detachably mounting said detachable and reusable timer means to the syringe means, whereby the detachable and reusable timer means is detachable from the syringe means so as to be reusable with another syringe means.

9. An apparatus as defined in claim 8, wherein said attachment means comprises:

a housing, said housing being affixed to said syringe means and being sized and shaped so as to receive and detachably hold said detachable timer means.

10. An apparatus as defined in claim 9, wherein said housing comprises:

retaining means for maintaining said detachable timer means within said housing in a tight yet releasable manner.

11. An apparatus as defined in claim 8, wherein the display means comprises a liquid crystal display that is mounted and electrically connected to the detachable timer means.

12. An apparatus for use in inflating a balloon-tipped catheter, comprising:

syringe means for generating sufficient pressure to inflate a balloon-tipped catheter;

pressure gauge means, attached to the syringe means, for measuring and displaying the pressure generated by the syringe means;

detachable and reusable timer means, detachably mountable to said syringe means, for measuring durations of separate events of inflation and deflation of the balloon-tipped catheter, said detachable and reusable timer means having said pressure gauge means mounted thereto and said detachable and reusable timer means further including;

display means for visually displaying the time durations measured by the detachable and reusable timer means;

first actuating means for commencing the timing of the duration of each successive event of inflation and deflation;

memory means for storing the duration of each event of inflation and deflation; and

second actuating means for causing the display means to display the historical duration of each event of inflation and deflation stored in the memory means; and

attachment means for detachably receiving said detachable and reusable timer means, whereby the pressure gauge means is detachable from the syringe means along with the detachable and reusable timer means so as to be reusable with another syringe means.

13. An apparatus as defined in claim 12, wherein said attachment means comprises:

a housing, said housing being affixed to said syringe means and being sized and shaped so as to receive and detachably hold said detachable and reusable timer means.

14. An apparatus as defined in claim 13 wherein said housing comprises:

retaining means for maintaining said detachable and reusable timer means within said housing in a tight yet releasable manner.

15. An apparatus as defined in claim 12, wherein the display means comprises a liquid crystal display that is mounted and electrically connected to the detachable and reusable timer means.

16. An apparatus for use in inflating a balloon-tipped catheter, comprising:

(a) syringe means for generating sufficient pressure to inflate a balloon-tipped catheter;

(b) pressure gauge means, mounted to said syringe means, for measuring and displaying the pressure generated by the syringe means;

(c) detachable and reusable timer means, detachably mountable to said syringe means, for measuring durations of separate events of inflation and deflation of the balloon-tipped catheter, said detachable and reusable timer means including;

(i) display means for visually displaying the time durations measured by the detachable timer means;

(ii) first actuating means for commencing the timing of the duration of each successive, event of inflation and deflation;

(iii) memory means for storing the duration of each event of inflation and deflation; and

(iv) second actuating means for causing the display means to display the historical duration of each event of inflation and deflation stored in the memory means; and

(d) attachment means, affixed to said syringe means, for detachably mounting said detachable and reusable timer means to the syringe means, whereby the detachable timer means is detachable from the syringe means so as to be reusable in another syringe means, the attachment means comprising;

(i) a housing, said housing being affixed to said syringe means and being sized and shaped so as to receive and detachably hold said detachable timer means; and

(ii) retaining means for maintaining said detachable and reusable timer means within said housing in a tight yet releasable manner.

17. An apparatus for use in inflating a balloon-tipped catheter, comprising:

(a) syringe means for generating sufficient pressure to inflate a balloon-tipped catheter;

(b) pressure gauge means for measuring and displaying the pressure generated by the syringe means;

(c) detachable and reusable timer means, detachably mountable to said syringe means, for measuring durations of separate events of inflation and deflation of the balloon-tipped catheter, said detachable and reusable timer means having said pressure gauge means mounted thereto and said detachable timer means further including;

(i) display means for visually displaying the time durations measured by the detachable and reusable timer means;

(ii) first actuating means for commencing the timing of the duration of each successive event of inflation and deflation;

(iii) memory means for storing the duration of each event of inflation and deflation; and

(iv) second actuating means for causing the display means to display the historical duration of each event of inflation and deflation stored in the memory means; and

(d) attachment means, affixed to said syringe means, for detachably mounting said detachable and reusable timer means to the syringe means, whereby the pressure gauge means is detachable from the syringe means along with the detachable and reusable timer means, so as to be reusable on another syringe means, the attachment means comprising;

(i) a housing, said housing being affixed to said syringe, means and being sized and shaped so as to receive and detachably hold said detachable timer means; and

(ii) retaining means for maintaining said detachable timer means within said housing in a tight yet releasable manner.