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WO2021161116A1 - Drain chirurgical hémo-vac présentant un système d'administration épidurale de médicament - Google Patents

Drain chirurgical hémo-vac présentant un système d'administration épidurale de médicament Download PDF

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Publication number
WO2021161116A1
WO2021161116A1 PCT/IB2021/050441 IB2021050441W WO2021161116A1 WO 2021161116 A1 WO2021161116 A1 WO 2021161116A1 IB 2021050441 W IB2021050441 W IB 2021050441W WO 2021161116 A1 WO2021161116 A1 WO 2021161116A1
Authority
WO
WIPO (PCT)
Prior art keywords
drain
surgical
epidural
drug
drug delivery
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.)
Ceased
Application number
PCT/IB2021/050441
Other languages
English (en)
Inventor
Mehdi REZAEE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2021161116A1 publication Critical patent/WO2021161116A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • A61M1/85—Drainage tubes; Aspiration tips with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants
    • 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
    • A61M19/00—Local anaesthesia; Hypothermia
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
    • 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
    • A61M2025/0007—Epidural catheters
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0468—Liquids non-physiological
    • A61M2202/048—Anaesthetics
    • 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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains

Definitions

  • the present invention relates to medical devices, and more particularly to a drainage tube system combined with catheter systems for delivering a therapeutic agent to a region of a body.
  • Hemovac drain is a flexible plastic tube which is developed for fluid drainage (including blood and other secretions) in the surgical sites.
  • Hemovac drain includes an evacuator which may exert negative pressure that is attached to a tubing system. The other end of the tube is inserted in the surgical site through skin by a puncture needle guide before wound closure.
  • hemovac drain Another application of hemovac drain is to treat postoperative spinal infections where irrigation suction system is used along the irrigation drain.
  • irrigation suction system two separate drains are put inside the surgical site. Irrigation drain is used to insert the antibiotic solution and serum for irrigation and the fluid is drained using hemovac drain.
  • Irrigation drain is used to insert the antibiotic solution and serum for irrigation and the fluid is drained using hemovac drain.
  • Using two drains for this purpose may cause further complications such as patient’s pain, discomfort and increased infection rate.
  • controlling two drains in case of drain blockade, displacement, dressing will require more time and costs.
  • a surgical drain is a plastic tube used for suctioning body fluids from the surgical field or from within the closed wound.
  • This device is designed using the primary version of surgical hemovac drain with adding a longitudinal duct along the drain for drug delivery, so that using a pilot valve, the drug is transferred through the external pores of the drug delivery system after drug.
  • Epidural analgesia is one of the most favorite modalities of postoperative pain management. Following posterior spinal surgeries, it is impractical to place epidural catheter by means of peridural negative pressure since it disappears due to tissue distortion; thus, adding an extra lumen to conventional surgical drain for anesthetic drug delivery to epidural space would solve the problem. Therefore, placement of surgical drain adjacent to epidural region for epidural drug delivery may have a promising role.
  • Fig. 1 is an overview of the present invention.
  • FIG. 2 is a longitudinal sectional view of an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of an embodiment of the present invention.
  • FIG. 4 shows the functional view of the present invention.
  • the surgery drain of the present invention provides the ability to administer local anesthetic(13) to some segments of epidural space adjacent to surgery site through a specially constructed side port (5) in the wall of the surgical drain tube (7).
  • the device may also be used for administration of other drugs for various purposes.
  • the surgical drain of the present invention may be extruded from polyvinyl chloride and one small lumen (11 ) is incorporated in the side wall of the tube.
  • the second lumen (11) serves as the route for administration of local anesthetic(13) to overcome the presented technical issues to deliver the desired drug to the surgical site.
  • This surgical hemovac drain is produced by adding a system of drug delivery and consists of the following constituents: 1. surgical drain 2. epidural drug delivery system
  • the epidural drug delivery system comprises of 5 parts in order: injection port(1), one-way valve(2), antibacterial filter(3), external line of drug injection(4), internal duct of drug delivery(11), and distal drug delivery outlets to the epidural space(5).
  • the drug injection line includes drug inlet(1), one-way valve(2) and the external duct(4) of drug delivery which transfers the solution of the desired drug to the internal duct(11).
  • the internal duct for drug delivery(11) is composed of a longitudinal duct along the inner surface of the wall of the surgical drain tube(7) which is used to transfer the drug from the outer line to the drug outlet.
  • the outer end of the tube (1) will securely accept a syringe containing local anesthetic.
  • the inner end of this local anesthetic bearing lumen (11) has several small openings (5) on the distal 10 cm portion of drain tube corresponding to adjacent epidural space to surgery wound. Injection down this lumen (11) would therefore evenly distribute anesthetic solution in this area.
  • a very thin duct is designed in the internal wall of the drain in a vertical view (Fig. 4), in a descending way, similar to plant vessel, with an open ending to outside), and the injected drug (13) passes through the drug delivery line (4) from outside the body, after passing the vertical duct in the drain wall (11) and passes out (13) via outlet pores (5) to the epidural space.
  • Figures 1 shows a general view of the surgical drain.
  • Figure 4 and 1 shows the surgical drain with drug delivery ability after insertion.
  • the injected drug (13) enters drug injection duct (11) through drug injection line (4) and reaches drug delivery outlets (5) where it passes out (13).
  • Surgical site discharges (12) enter the drain outlet duct (7) through drain pores (10) and passes to the discharge bag (9).
  • the invention described here is an improvement with additional uses of a surgical hemo-vac drain.
  • the surgical hemo-vac drain of the present invention has the built in capability of epidural drug delivery. This product may be used in the medial equipment production.

Landscapes

  • Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Drain de chirurgie spinale hémo-vac à capacité d'injection de médicament épidurale est qui est une modification des drains chirurgicaux existants. Il présente l'addition d'un orifice d'injection à une lumière dans la paroi du drain présentant des trous de sortie distaux qui correspondent à l'espace épidural lorsque le drain est correctement placé. Dû à la distorsion des tissus suite aux chirurgies thoracolumbaires postérieures, la mise en place du cathéter épidural ne s'applique pas sur la base de la détection de la pression physiologique négative de l'espace épidural. Le dispositif permet d'appliquer l'administration de médicament analgésique sur cette zone sur la mise en place initiale et tandis que le tube demeure en place. Le drain chirurgical de la présente invention permet à un patient de recevoir l'analgésie épidurale post-opératoire qui améliore la gestion de la douleur post-opératoire et qui élimine le besoin d'administration systémique de médicament et les effets secondaires apparentés.
PCT/IB2021/050441 2020-02-13 2021-01-21 Drain chirurgical hémo-vac présentant un système d'administration épidurale de médicament Ceased WO2021161116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IR139850140003010596 2020-02-13
IR13983010600 2020-02-13

Publications (1)

Publication Number Publication Date
WO2021161116A1 true WO2021161116A1 (fr) 2021-08-19

Family

ID=77295170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/050441 Ceased WO2021161116A1 (fr) 2020-02-13 2021-01-21 Drain chirurgical hémo-vac présentant un système d'administration épidurale de médicament

Country Status (1)

Country Link
WO (1) WO2021161116A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117138156A (zh) * 2023-10-17 2023-12-01 首都医科大学附属北京友谊医院 一种胸科用麻醉止疼泵
CN119055855A (zh) * 2024-09-18 2024-12-03 华科精准(北京)医疗设备股份有限公司 一种防感染引流管及引流系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020095133A1 (en) * 1999-06-23 2002-07-18 Gillis Edward M. Composite drug delivery catheter
WO2013131638A1 (fr) * 2012-03-05 2013-09-12 Lohmann & Rauscher Gmbh Dispositif de soin des plaies et son moyen de recouvrement
EP3527237A1 (fr) * 2013-10-30 2019-08-21 KCI Licensing, Inc. Conduit et système absorbants

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020095133A1 (en) * 1999-06-23 2002-07-18 Gillis Edward M. Composite drug delivery catheter
WO2013131638A1 (fr) * 2012-03-05 2013-09-12 Lohmann & Rauscher Gmbh Dispositif de soin des plaies et son moyen de recouvrement
EP3527237A1 (fr) * 2013-10-30 2019-08-21 KCI Licensing, Inc. Conduit et système absorbants

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117138156A (zh) * 2023-10-17 2023-12-01 首都医科大学附属北京友谊医院 一种胸科用麻醉止疼泵
CN119055855A (zh) * 2024-09-18 2024-12-03 华科精准(北京)医疗设备股份有限公司 一种防感染引流管及引流系统
CN119055855B (zh) * 2024-09-18 2025-05-16 华科精准(北京)医疗设备股份有限公司 一种防感染引流管及引流系统

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