Medical simulator

• US 4,726,772 A
• Filed: 12/01/1986
• Issued: 02/23/1988
• Est. Priority Date: 12/01/1986
• Status: Expired due to Fees

• Current Assignee: Medi-Tech Incorporated Watertown MA
• Original Assignee: Medi-Tech Incorporated Watertown MA
• Inventors: Amplatz, Kurt
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US06/936,331
• Time in Patent Office: 449 Days
• Field of Search: 434/272, 434/267
• US Class Current: 434/272
• CPC Class Codes: G09B 23/285 for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas

Abstract

A medical simulator for enabling demonstration, trial and test of insertion of torqueable elongated members into small body passages that branch from main passages is disclosed. Such torqueable members may be guide wires or catheters which are constructed to cause the distal tip to turn or twist in response to a corresponding motion applied by the operator to a proximal portion of the device.

Claims

1. A medical simulator comprising:

an extended support surface,

a length of hollow tubing extending in a curved pattern along and secured to said support surface in a manner to simulate a main lumen of the body,

indicia along the length of said tubing providing a visual suggestion of a series of branch lumens joined to said main lumen at a representative variety of positions,

apertures in the wall of said tubing corresponding to said indicated branch lumens,

said tubing having at least one open end and sized to enable insertion and passage of a torqueable elongated member and said apertures sized to permit entry of the distal tip of said elongated member,

said tubing having a light-transmissive wall through which the operator can observe the progress of said torqueable member,

whereby the operator can maneuver the torqueable member to pass along the curved pattern of said tubing and into said apertures thereby to simulate fluoroscopically-controlled entry into a branch lumen of the body at selected places along a main lumen.

2. The medical simulator of claim 1 wherein said apertures open into an unconfined space visible to the operator whereby when he sees the tip of the torqueable member emerge through the aperture into such space, knows that the aperture has been successfully entered.

3. The simulator of claim 1 or 2 wherein said apertures are positioned on the inside and outside of curved portions of said tubing and on straight portions preceding and following a curved portion of the tubing.

4. The simulator of claim 1 wherein said tubing is sized for passage of a torqueable guide wire.

5. The simulator of claim 1 wherein said tubing is sized for passage of a torqueable catheter.

6. The simulator of claim 1 wherein said tubing is comprised of clear plastic.

7. The simulator of claim 1 wherein said indicia comprise a representation, in a color contrasting with that of the support, of a main lumen of the body and of branch lumens joined thereto.

8. The simulator of claim 6 wherein said indicia are red and are suggestive of main and branch lumens of a blood vessel.

9. The simulator of claim 1 in which there are additional such tubings joined to said apertures to represent branch lumens, the walls of said branch tubings also having apertures to simulate further branching of the lumen system.

10. The simulator of claim 1 including responsive devices located at said apertures for automatically informing the operator of successful entry.

11. The simulator of claim 10 wherein said responsive devices are conjoined with a timing mechanism thereby to enable an operator to determine his skill and speed in successfully negotiating the simulator.

12. A medical simulator comprising:

a straight length of hollow, rigid tubing to simulate a main lumen of the body,

apertures in the wall of said tubing to which further straight lengths of hollow, rigid tubing are secured at a variety of angles to simulate first branch lumens,

said tubing having at least one open end and sized to enable insertion and passage of a torqueable elongated member and said apertures sized to permit entry of the distal tip of said elongated member,

said tubing having a light-transmissive wall through which the operator can observe the progress of said torqueable member,

whereby the operator can maneuver the torqueable member to pass along the pattern of said tubing to simulate fluoroscopically-controlled entry into a branch lumen of the body at selected places along a main lumen.

13. The simulator of claim 12 wherein there are apertures in the wall of the first branch sections of tubings, to which further lengths of hollow, rigid tubing are secured at a variety of angles to simulate second branch lumens.

14. The simulator of claim 12 or 13 wherein said lengths of tubing are rigid, each being of constant diameter throughout its length.