Creative Research & Manufacturing

Other

Flo-Pac Corporation

Norfab Corporation

Kastec Corporation

Donald N Mehl

Robert L Kaster

Franklin D Pichelman

Larry K Holen

Kathryn A Klemetsrud

Vernon L Discher

Biopsy needle for bone marrow biopsies or the like including a cannula, a cannula housing supporting the cannula, and a stylet including a stylet cap supporting the stylet wherein the stylet engages into the cannula in a predetermined relationship and the stylet cap interlocks to the cannula housing. The cannula housing includes vertical wings extending outwardly from the housing for engagement with the palm of a physician's hand, a cannula having formed ends which engage and secure into the cannula housing, and an elongated button extending outwardly from the top of the cannula housing for detent locking with the stylet cap providing for alignment of the stylet to the cannula of the biopsy needle. The stylet includes a longitudinal member having a ground and buffered beveled end maintaining a knife-sharp edge around the tip, and the other end of the stylet is bent and molded into the stylet cap where the stylet cap includes a spring detent locking groove for interlocking with the button of the cannula housing. The stylet inserts into the cannula and with a twist locks about the top of the cannula with a positive digital sensory feedback signal to the physician.

Biopsy needle

Tissue needle for extracting a biopsy sample including a pistol style squeezable hand grip for single hand tissue needle operation during a biopsy procedure. A spring tensioned sliding cannula, including a configured cutting edge, is actuated by a squeeze trigger and cam arrangement to slide over a fixed position stylet for entry into a tissue sample area. A squeeze trigger manually cycles using one hand to obtain a biopsy sample contained in a tissue sample notch of the sharp stylet tip whereupon the tissue needle can then be manually withdrawn. The tissue needle can be left temporarily in position in the tissue sample area in preparation for additional sampling while the stylet is withdrawn independently of the cannula prior to other samplings after subsequent reinsertion of the stylet into the cannula.

Tissue needle

Biopsy needle for bone marrow biopsies or the like including a cannula, a cannula housing supporting the cannula, and a stylet including a stylet cap supporting the stylet wherein the stylet engages into the cannula in a predetermined relationship and the stylet cap interlocks to a cannula housing. The biposy needle is constructed to be either disposable to reusable depending upon the cannula housing and stylet cap material. The end of the cannula is uniquely formed in a swaging, bevel and grinding, and buffing process providing a sharp knife edge. The stylet includes a longitudinal member having a ground and buffed beveled end maintaining a knife-sharp edge around the tip, and the other end of the stylet is bent and molded into the stylet cap where the stylet cap includes a spring detent locking groove for interlocking with the button of the cannula housing. An alternative embodiment discloses a cannula including a tubular cannula member with a preformed sharp end and a clip having outwardly extending flanges at an angle to each other soldered onto an upper portion for securing the cannula tube in the molded cannula housing.

Method of manufacturing a biopsy needle

A method of constructing and assembling a fishing lure including a stylet with a hole for pushing through a fishing lure or bait such as a worm from one end to another end, placing monofilament line through the stylet, pulling the line back through the lure, affixing a hook to one end of the line, placing at least a portion of the hook into the lure, and connecting the other end of the line to a fishing tackle connection. The stylet can be utilized with plastic worms, live worms, minnows, or any other type of bait or artificial lures. The method provides for the construction and assembly of a fishing lure with a hook positioned in the rear of the bait, and a monofilament line extending through a mojor portion of the bait.

Method of lining bait

Tissue needle for extracting a biopsy sample including a pistol style squeezable hand grip for single hand biopsy tissue needle operation. A spring tensioned sliding cannula, including a configured cutting edge, actuates by a squeeze trigger and cam arrangement to slide over a fixed position stylet for entry into a tissue sample area. A squeeze trigger manually cycles using one hand to obtain a biopsy sample contained in a tissue sample notch of the sharp stylet tip whereupon the tissue needle is manually withdrawn. The soft tissue can be liver tissue, kidney tissue, growth area tissue, or a like tissue. The tissue needle can have other medical biopsy uses in either human or animals.

A door having a peripheral frame. The frame includes a length having side walls and an outer wall defining a generally U-shaped channel. A slot is formed in the side wall of the channel adjacent the outer wall. An accessory, such as a handle, is carried by the frame and includes a tang that extends extending snugly through the slot and protrudes inwardly of the channel. Means are provided to fasten the inwardly protruding tang to the outer wall of the channel, thus rigidly affixing the accessory to the frame.

Door frame structure

Biopsy needle for bone marrow biopsies or the like including a cannula, a cannula housing supporting the cannula, and a stylet including a stylet cap supporting the stylet wherein the stylet engages into the cannula in a predetermined relationship and the stylet cap interlocks to the cannula housing. The biopsy needle is constructed to be either disposable or reusable depending upon the cannula housing and stylet cap material. The cannula housing includes vertical wings extending outwardly from the housing for engagement with the palm of a physician's hand, a cannula having formed ends which engage and secure into the cannula housing, and an elongated button extending outwardly from the top of the cannula housing for detent locking with the stylet cap providing for alignment of the stylet to the cannula of the biopsy needle. The end of the cannula is uniquely formed in a swaging, bevel and grinding, and buffing process providing a sharp knife edge. The stylet includes a longitudinal member having a ground and buffed beveled end maintaining a knife-sharp edge around the tip, and the other end of the stylet is bent and molded into the stylet cap where the stylet cap includes a spring detent locking groove for interlocking with the button of the cannula housing. The stylet cap is rounded at the top and includes vertical grooves for gripping during locking and unlocking. The stylet inserts into the cannula and with a twist locks about the top of the cannula with a positive digital sensory feedback signal to the physician.

Needle for bone marrow biopsies including a cannula, a cannula housing supporting the cannula including a partially threaded lower member, a stylet including a stylet cap supporting the stylet and a threaded depth stop for engaging over the cannula wherein the stylet engages into the cannula in a predetermined relationship, the stylet cap interlocks to the cannula housing, and the threaded member determines the depth of penetration of the needle. The sternum needle is constructed to be either disposable or reusable depending upon the cannula housing and stylet cap material. The cannula housing includes vertical wings extending outwardly from the housing for engagement with the palm of a physician's hand, a cannula clip having ends which are soldered onto the cannula and secure into the cannula housing, and an elongated button extending outwardly from the top of the cannula housing for detent locking with the stylet cap providing for alignment of the stylet to the cannula of the sternum needle. The stylet includes a longitudinal member having a ground and buffed beveled end maintaining a knife-sharp edge around the tip, and the other end of the stylet is bent and molded into the stylet cap where the stylet cap includes a spring detent locking groove for interlocking with the button of the cannula housing. The stylet cap is rounded at the top and includes vertical grooves for gripping during locking and unlocking.

Bone marrow aspiration needle

An edge protector for a sheet of glass or the like comprising an integral, dual-durometer, co-extruded channel having rigid and soft portions. The rigid portion comprises a channel having an internally generally flat central portion and legs extending convergently from edges of the central portion and terminating in reversely curved, divergent edge portions providing confronting oppositely curved surfaces spaced from the central portion. The soft portion comprises deformable gripping pads formed integrally by co-extrusion on said confronting surfaces and providing confronting, deformable gripping surfaces for conformably gripping therebetween, with surface-to-surface contact, exterior parallel surfaces of a glass sheet or the like adjacent the edge of the sheet with the latter receivable in confronting relationship to the internally generally flat central portion of the protector.

Edge protector

A squeegee assembly having a tapered, flexible blade edge that will not develop a wary surface through use. The blade edge is formed on a flexible blade member, which blade member is disposed about and attached to another less flexible blade member. The flexible blade members may be symmetrically formed about a longitudinal axis, and the flexible blade member may include a blade edge formed on either side thereof. A blade support member having a shaped notch for receiving the flexible blade member provides longitudinal support therefor. The blade support member and flexible blade members are held and supported by a handle and trigger assembly having trigger actuated jaws.

Squeegee assembly

Bracket plate

A sizing gauge for determining the proper size of heart valve for implantation in a natural heart valve orifice. The sizing gauge includes a handle which can be gripped by a surgeon, a sizing ring having a smooth outer surface and a hollow interior, and connecting struts connecting the sizing ring and the handle. The connecting struts is so constructed and arranged as to afford direct visual observation by the surgeon of heart tissue beyond the sizing ring when the latter is inserted in a heart orifice. Outer surfaces of the connecting struts diverge forwardly for connection to the sizing ring and merge with the outer surface of the sizing ring to permit the latter to be eased outwardly through the natural heart valve orifice.

Heart valve sizing gauge

An implantable heart valve including a suturing ring within which the body of the valve may be rotatably positioned following surgical implantation. The suturing ring is held to the valve body by binding means, such as an annular band or series of cord wraps. In one embodiment, the binding means may be heat-relaxed after the suturing ring has been bound to the valve body, thereby facilitating rotation of the valve body in the suturing ring. Slip ring means may be interposed between the suturing ring and the valve body to facilitate rotation. The slip ring means may be shaped to permit the binding means to hold the suturing ring tightly at its edges to the valve body to prevent the suturing ring from separating from the valve body at their mutually adjacent edges. The slip ring means may comprise a single ring or a pair of concentric slip rings having a mutual low-friction interface.

Growing community of inventors

Minnetonka, MN, United States of America

Donald N Mehl