CA2219181A1 - Selectively aspirating stylet - Google Patents
Selectively aspirating styletInfo
- Publication number
- CA2219181A1 CA2219181A1 CA002219181A CA2219181A CA2219181A1 CA 2219181 A1 CA2219181 A1 CA 2219181A1 CA 002219181 A CA002219181 A CA 002219181A CA 2219181 A CA2219181 A CA 2219181A CA 2219181 A1 CA2219181 A1 CA 2219181A1
- Authority
- CA
- Canada
- Prior art keywords
- tubular member
- fluid
- stylet
- assembly
- valve assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A selectively aspirating stylet assembly comprises a stylet having proximal and distal ends, the proximal end in fluid communication with a fluid supply and the distal end disposed at or near the end of a catheter, cannula or other generally tubular member that is to be inserted to a specified location within a patient's body, so as to create a fluid flow path from the fluid supply through the generally tubular member to the specified location. A valve assembly located within the fluid flow path is operable to close off a fluid column within the stylet assembly to facilitate placement of the tubular member within the body, and to control the flow of fluids within the assembly. Insertion of the tubular member into the body is accomplished by placing a portion of the stylet within the tubular member, closing the valve assembly to create a closed fluid column; inserting the style/tubular member assembly into the body; and then, during the withdrawal of the stylet, opening or closing the valve assembly as necessary to control the flow of fluid within the style/tubular member assembly to avoid substantial aspiration of body fluid and tissue.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/430,964 | 1995-04-28 | ||
| US08/430,964 US5603703A (en) | 1995-04-28 | 1995-04-28 | Selectively aspirating stylet |
| PCT/US1996/005161 WO1996033663A1 (en) | 1995-04-28 | 1996-04-15 | Selectively aspirating stylet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2219181A1 true CA2219181A1 (en) | 1996-10-31 |
| CA2219181C CA2219181C (en) | 2006-10-24 |
Family
ID=37309503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002219181A Expired - Fee Related CA2219181C (en) | 1995-04-28 | 1996-04-15 | Selectively aspirating stylet |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2219181C (en) |
-
1996
- 1996-04-15 CA CA002219181A patent/CA2219181C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2219181C (en) | 2006-10-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130415 |