Alan Anson Wanderer

US Patent:

52193330, Jun 15, 1993

Filed:

Feb 28, 1992

Appl. No.:

7/828309

Inventors:

William E. Sagstetter - Denver CO
Alan A. Wanderer - Englewood CO

Assignee:

Medical Safety Products, Inc. - Denver CO

International Classification:

A61F 528

US Classification:

604110

Abstract:

An insert (14) for supporting a double ended needle (94, 98) during a blood collection procedure is translatably mounted with a cylinder (12) for retracting the anterior needle (98) into the cylinder (12) on completion of the procedure to prevent needle stick while the posterior needle (94) remains continually shielded against needle stick by the insert (14). An anterior lock position stabilizes the double ended needle (94, 98) during the blood collection procedure and a posterior lock position retains both ends (94, 98) of the needle shielded. Ramps (130, 132) may be associated with the posterior lock position to prevent further translation of the insert (14) and reuse of the holder (10). For a reusable holder embodiment, the used double ended needle (94, 98) is retracted, safely enclosed and locked inside the cylinder (12). The anterior end (30) of the cylinder (12) is adapted for receiving the open end (90) of a conventional needle shield (96) to permit gripping of the needle supporting hub (92) and disengagement of the needle (94, 98) from the insert (14) without exposure to needle stick.

US Patent:

48509612, Jul 25, 1989

Filed:

Jul 30, 1987

Appl. No.:

7/079599

Inventors:

Alan A. Wanderer - Englewood CO
William E. Sagstetter - Denver CO

International Classification:

A61M 532

US Classification:

604 53

Abstract:

An indwelling placement device having an introducing needle and a catheter for infusing fluids into a blood vessel incorporates a guard for shielding the needle prior to extension from therewithin and for receiving the needle upon retraction thereinto to preclude an operator inadvertently contacting the needle after use. Once retracted, the needle cannot be extended from within the guard. Upon retraction of the needle into the guard, a button mates with the open end of a hollow hub of the needle to prevent outflow of residual blood therefrom. A valve is incorporated with the catheter to preclude blood outflow from the catheter upon withdrawal of the needle and prior to attachment of an intravenous line for conveying a fluid to be intravenously administered.

US Patent:

46937080, Sep 15, 1987

Filed:

Oct 16, 1986

Appl. No.:

6/919373

Inventors:

Alan A. Wanderer - Englewood CO
William E. Sagstetter - Denver CO

International Classification:

A61M 532

US Classification:

604198

Abstract:

This invention relates to a combination needle shield/needle guard device for a hypodermic syringe with a needle permanently attached to the front end of the syringe barrel. This needle shield/needle guard device is positively locked to the syringe barrel and can perform two functions: first, function as a needle shield which encloses and prevents contamination of a sterile needle and secondly, function as a needle guard which can slide on the surface of the syringe barrel, such that the needle can be uncovered and re-covered from behind the needle point, thereby providing a safety feature in that medical personnel can avoid direct contact with a needle point during the process of uncovering or re-covering the needle. More particularly, an unused sterile hypodermic needle is enclosed within the needle shield/needle guard device which protects the needle from contamination. Exteriorization of the needle from inside the needle shield/needle guard device occurs after an aperture is created by pulling off a tab at the front end of the needle shield/needle guard device and then retracting the needle shield/needle guard device on the syringe barrel, permitting the needle to exteriorize through the aperture.

US Patent:

51203111, Jun 9, 1992

Filed:

Nov 1, 1989

Appl. No.:

7/430311

Inventors:

William E. Sagstetter - Denver CO
John E. Cooke - Lakewood CO
Louis E. Greenberg - Denver CO
Alan A. Wanderer - Englewood CO

Assignee:

Medical Safety Products, Inc. - Denver CO

International Classification:

A61M 500

US Classification:

604110

Abstract:

An insert for supporting a double ended needle during a blood collection procedure is translatably mounted within a cylinder for retracting the anterior needle into the cylinder on completion of the procedure to prevent needle stick while the posterior needle remains continually shielded against needle stick by the insert. An anterior lock position stabilizes the double ended needle during the blood collection procedure and a posterior lock position retains both ends of the needle shielded. A ramp may be associated with the posterior lock position to prevent further translation of the insert and reuse of the holder. For a reusable holder embodiment, the used double ended needle is retracted, safely enclosed and locked inside the cylinder. The anterior end of the cylinder is adapted for receiving the open end of a conventional needle shield to permit gripping of the needle supporting hub and disengagement of the needle from the insert without exposure to needle stick. A replacement needle may then be mounted in the insert and the holder reused.

US Patent:

59571250, Sep 28, 1999

Filed:

Nov 4, 1997

Appl. No.:

8/963880

Inventors:

William E. Sagstetter - Denver CO
Ewan Grantham - Castle Rock CO
Alan A. Wanderer - Castle Rock CO

Assignee:

Medical Safety Products, Inc. - Englewood CO

International Classification:

A61M 1100
A62B 700

US Classification:

12820023

Abstract:

The present apparatus insures proper orientation during use of an oral or nasal inhaler, as well as providing an audible rattle to aid in remembering to shake the inhaler prior to use. An indicator ball is confined within a substantially horizontal tube in the inhaler housing. One end of the tube is visually exposed within the user's field of view. The indicator ball remains out of view within the inhaler housing unless the inhaler orientation is held in a substantially vertical orientation. When proper vertical orientation is achieved, the indicator ball rolls to the exposed end of the tube and is visible to the user. Shaking the inhaler prior to use causes the indicator ball to rattle within the tube producing an audible rattle. The event of shaking the inhaler and hearing the rattle provides the user with a reinforced memory to shake the inhaler prior to use. In the preferred embodiment as applied to oral inhalers, the indicator ball and tube are placed within an ergonomic cap seated on the upper end of the aerosol vial of the inhaler.

US Patent:

51815249, Jan 26, 1993

Filed:

Sep 26, 1991

Appl. No.:

7/765956

Inventors:

Alan A. Wanderer - Englewood CO
William E. Sagstetter - Denver CO

Assignee:

Medical Safety Products, Inc. - Denver CO

International Classification:

A61B 500
A61M 532

US Classification:

128764

Abstract:

A needle guard attached to the barrel of a hypodermic syringe encloses and shields the needle against contamination prior to use and prevents inadvertent direct contact therewith by medical personnel after use. Development of an aperture at the end of the needle shield to accommodate protrusion by the needle is effected by a removable member. Translation of the needle guard along the syringe barrel to uncover and recover the needle is effected by manipulation from a location rearwardly of the needle point to further protect the medical personnel. A double ended needle, usually used with a collection tube holder of a blood evacuation system, includes a needle guard which may interlock with the holder upon translation of the needle guard to expose the anterior needle and to prevent inadvertent disengagement with the holder and resulting exposure of the posterior needle. An extension of the interconnection between the double ended needle and the holder permits large girth holders to be employed without compromising the preferred needle entry angle. Other embodiments of the needle guard include telescoping guards to shield lengthy single needles and double-ended needles, each of which is manipulated from a location rearwardly of the respective needle end.

US Patent:

47310596, Mar 15, 1988

Filed:

Oct 14, 1986

Appl. No.:

6/918020

Inventors:

Alan A. Wanderer - Englewood CO
William E. Sagstetter - Denver CO

Assignee:

Medical Safety Products, Inc. - Denver CO

International Classification:

A61B 514

US Classification:

604192

Abstract:

This invention relates to a combination needle shield/needle guard device that is positively locked onto detachable needle assemblies for an evacuated blood collection system and for a hypodermic syringe. More particularly, this invention can: (1) function as a needle shield to enclose and prevent contamination of the sterile needle to be used for a medical procedure; (2) function as a needle guard which can slide on a length extension for either needle assembly, such that the needle can be uncovered or re-covered in a direction from behind the needle point, thereby providing a safety feature for the operator who can avoid direct contact with a used, blood-contaminated needle point. Avoidance of direct contact with used needle points will reduce the likelihood of contracting blood-borne infections such as AIDS, infectious hepatitis, syphilis etc. that might occur following accidental puncture with contaminated needles; (3) provide improved securing for an evacuated blood collection system between the double-ended needle assembly and the container holder, thereby preventing the double-ended needle assembly from unlocking with the container holder during the process of withdrawing blood into an evacuated container and (4) improve blood withdrawing success with the blood evacuated collection system and with a large volume syringe.

US Patent:

46646531, May 12, 1987

Filed:

Feb 24, 1986

Appl. No.:

6/832084

Inventors:

William E. Sagstetter - Denver CO
Alan A. Wanderer - Englewood CO

International Classification:

A61M 500

US Classification:

604197

Abstract:

One step manually activated injection apparatus capable of injecting multiple pre-measured doses of liquid medicaments without visibility of needle. It is composed of cylindrical housing unit with small aperture at bottom and removeable manual plunger unit at the top, and within housing unit there is a syringe unit composed of a piston, ampule with pre-measured liquid medicament, needle covered with sterile sheath and clip apparatus attached onto the ampule. The injection apparatus is placed in ready position by contacting the bottom of housing unit against a skin surface. One forward manual push on manual plunger unit performs two distinct functions. First, the manual plunger unit engages the clip apparatus attached to syringe ampule, permitting forward movement of syringe unit within housing unit, allowing needle to pierce sheath and pass externally through aperture of housing unit without visibility into the skin. Secondly, a continuous forward push on manual plunger unit allows clip apparatus to move into reduced diameter transitions in housing unit, forcing clips internally to contact onto ampule, permitting manual plunger unit to disengage from clip apparatus and move forward exerting pressure on syringe piston, which pushes liquid medicament through needle into the skin. After injection of liquid medicament, radial pressure exerted by clip apparatus against internal diameter of manual plunger unit permits removal of syringe unit (i. e.