AUTOMATIC DEVICE TO CONFIRM THE PUNCTURING OF THE CENTRAL VEIN, WITH A MECHANISM FOR THE FAST INITIAL INTRODUCTION OF THE CATHETER AND CATHETER ANCHORING DEVICE

Abstract: An automatic device to confirm the puncturing of the central vein, with a mechanism for the fast initial introduction of the catheter and catheter anchoring device, with three improvements to be pointed out: 1) it has a bellowed balloon which creates a negative pressure, sucking the blood upon the puncturing of the central vein, automatically confirming the said puncturing. 2) It has an automatic trigger which allows the fast and initial introduction of the catheter, avoiding the outflow of the blood. In case some blood flows out, it is kept within the plastic balloon. For that reason, it does not contaminate the manipulator. 3) The quick anchoring hook is safe and eliminates the suture stitches which are normally done in patient, when using the existing models.

Description: Descriptive Report of the Patent of Invention entitled: "AUTOMATIC DEVICE TO CONFIRM THE PUNCTURING OF THE CENTRAL VEIN, WITH A MECHANISM FOR THE FAST INITIAL INTRODUCTION OF THE CATHETER AND CATHETER ANCHORING DEVICE" . - The present invention is related to a set of 3 (three) improvements in the process for the introduction of a catheter in the central vein (intracath). DESCRIPTIVE REPORT FIG. 1: A lateral view of the device, with the respective - identifying numerals cf details. FIG. 2: A top view of the device, with the respective identifying numerals of details. FIG. 3: A view of the different parts, disconnected from the device, with the respective identifying numerals of details. - FIG. 4: A cut view of the details related tc the said device. FIG. 5: A view of the removal of the puncturing needle, after the. introduction of the flexible conductor in the central vein. FIG. 6: A view of the removal of the split flexible conductor with the venous catheter already introduced into the central vein. - FIG. 7: A view of the anchoring device, attached tc the skin by the hook and the venous catheter held by the rubber lined fastener. FIG. 8: Details of the process for anchoring the device to the patient skin and later removal. - FIG. 9: View of two alternatives for the fixing of the tubular plastic balloon in the base of the flexible conductor. DESCRIPTION OF THE IDENTIFYING NUMERALS Numeral 1: Flexible, hollow conductor which covers the puncture guiding needle, with two longitudinal grooves which run along the - whole length of the thin wall of the conductor. When the wall is forced open, by holding the 2 ears (numerals 6 and 7), it is split open into 2 parts, releasing the catheter, as shown in F g. 6. Numeral 2 Guiding puncture needle for the central vein. Numeral 3 Puncturing needle support base. - Numeral 4 Filler-gutter, within the flexible conductor base, where the tip of the central vein catheter is housed. Numeral 5: Central vein catheter is housed within a plastic tubular balloon and it is longitudinally pressed establishing a pressure such as a spring. This pressure is kept by the steel rod located within the hole of the catheter Numeral 6: Indicates the first third (1/3) part of tne flexible conductor base, separated from the remaining (2/3) portion of the base by the 2 light grooves. - Numeral 7: Indicates the remaining portion (2/3) of the flexible conductor base. Numeral 8: Base body of the guiding needle, having an hollow portion which connects the hole of the guiding needle to the bellowed balloon. - Numeral 9: Bellowed balloon for the automatic determination cf the puncture of the central vein. It has a spring m its inner portion. Numeral 10 Handle grip of the guiding needle base, with an open lower portion, where the tubular plastic balloon is housed - Numeral 11: Safety grip, to assure the connection of the needle base with the conductor base (6) and (7). Numeral 12: Tubular plastic balloon. Numeral 13: Filler for the central vein catheter, where the serum is connected. - Numeral 14: A plastic box, with upper and back faces without wall; the back face is glued to the tubular balloon, while the upper face fits to the lower portion of the flexible conductor base (7). Numeral 15: Indicates the spring mechanism which the venous catheter acquires upon being longitudinally pressed inside the - tubular balloon, due to the force applied in order to fit the base of the flexible conductor (6) and (7). Numeral 16: Represents the patient's central vein. Numeral 17: Represents the anchoring hook, attached to the patient's εkm. - Numeral 18: The anchoring hook. Numeral 19- Two wing pressure cover which protect and house the tip cf the hook, after its anchoring to the patient's skin. Numeral 20: Shows the closed pressure cover protecting the tip of the hook. - Numeral 21: Pressure clip with its inner side lined with nonskid rubber material, the function of which is to cover and hold the central vein catheter. Numeral 22: Shows the line where the pressure cover should be cut out m order to release the hook and to remove the catheter Numeral 23: Shows the pressure cover, already removed and the released hook. Numeral 24: A tube, with the upper opening shaped like a tongue, through which the puncturing guiding needle is introduced. It has - the back side attached to the tubular plastic balloon, while its front part is connected to the base of the flexible conductor. It is an alternative in respect to the numeral 14. In practice, the process for the catheterization of the central vein, using this device, is done as follows: - 1st: Hold the device by the handle (10) of the guiding needle base, with the bellowed balloon (9) pressed as a bellow. Upon entering the patient skin, release the bellowed balloon and this will create a negative, suction pressure. 2nd: Upon puncturing the central vein, the blood enters through - the guiding needle and reaches the balloon, filling it under the suction pressure action, thereby indicating that it has punctured the vein. 3rd: Remove the guiding needle, and at the same time, with the fingers of the other hand, introduce the flexible conductor into - the central vein. 4th: Upon removing completely the guiding needle, the opening of the flexible conductor will remain free to allow the introduction of the catheter (5), for it is pressed (15) as a spring within the tubular plastic balloon (12). - 5th: Introduce the remaining portion of the catheter through the conductor, pushing it with the fingers by holding it in its outer side, through the plastic balloon. Observe that there is not blood outflow of the device. 6th: Remove the flexible conductor from the patient's body, - holding firmly the base of the conductor (6) and (7) and split it open intc two portions (1/3 and 2/3), along the two grooves, and discard the conductor. 7th: Fix the anchoring hook to the patient's skin and close the pressure cover to protect the tip of said hook. Fix the catheter - to the nonskid clip (21). Finally, remove the steel red from within the catheter and connect the medicine serum.

Claims: CLAIMS 1. "AUTOMATIC DEVICE TO CONFIRM THE PUNCTURING CF THE CENTRAL VEIN, WITH A MECHANISM FOR THE FAST INITIAL INTRODUCTION CF THE CATHETER AND CATHETER ANCHORING DEVICE", characterized by the fact _ that it has a bellowed balloon (9) connected to the puncturing needle, which allows the notice of the exact moment when it punctures the central vein. FIG. 1. 2. "AUTOMATIC DEVICE TC CONFIRM THE PUNCTURING OF THE CENTRAL VEIN, WITH A MECHANISM FOR THE FAST INITIAL INTRODUCTION OF THE - CATHETER AND CATHETER ANCHORING DEVICE", characterized by the fact the it has a spring like mechanism which creates a pressure (15 upon the catheter, which allows the fast and automatic initial introduction, avoiding the outflow of the blood at the moment cf the puncturing needle's removal. FIG. 2 and 4. - 3. "AUTOMATIC DEVICE TO CONFIRM THE PUNCTURING OF THE CENTRAL VEIN, WITH A MECHANISM FOR THE FAST INITIAL INTRODUCTION OF THE CATHETER AND CATHETER ANCHORING DEVICE", characterized by having an anchoring hook (20) to fix the catheter to the patient's skin. FIG. 7 and 8.

Inventors: CHIEN YIN LAN, HWANG CHIN RONG, CHIEN, YIN, LAN, HWANG, CHIN, RONG
Applicants: CHIEN YIN LAN, HWANG CHIN RONG, CHIEN, YIN, LAN, HWANG, CHIN, RONG
Application year: 1995
Main classification: A61M25
IPC codes: A61M25