SE442377B - Kateter, sond eller liknande anordning - Google Patents

Kateter, sond eller liknande anordning

Info

Publication number
SE442377B
SE442377B SE8403474A SE8403474A SE442377B SE 442377 B SE442377 B SE 442377B SE 8403474 A SE8403474 A SE 8403474A SE 8403474 A SE8403474 A SE 8403474A SE 442377 B SE442377 B SE 442377B
Authority
SE
Sweden
Prior art keywords
catheter
outside
hose
channels
capillary holes
Prior art date
Application number
SE8403474A
Other languages
English (en)
Other versions
SE8403474D0 (sv
Inventor
E Ekholmer
Original Assignee
Mediplast Ab
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 Mediplast Ab filed Critical Mediplast Ab
Priority to SE8403474A priority Critical patent/SE442377B/sv
Publication of SE8403474D0 publication Critical patent/SE8403474D0/sv
Priority to EP85903434A priority patent/EP0189453A1/en
Priority to JP60503201A priority patent/JPS61502521A/ja
Priority to AU46009/85A priority patent/AU4600985A/en
Priority to US06/841,516 priority patent/US4717379A/en
Priority to PCT/SE1985/000267 priority patent/WO1986000232A1/en
Publication of SE442377B publication Critical patent/SE442377B/sv

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
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/0036—Multi-lumen catheters with stationary elements with more than four lumina
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026—Multi-lumen catheters with stationary elements
    • A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
    • 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
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A61M2025/0062—Catheters; Hollow probes characterised by structural features having features to improve the sliding of one part within another by using lubricants or surfaces with low friction
    • 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
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Description

s4@s4¶4~§ katetern.
Den i figur 1 visade katetern 1 har en central genomloppskanal 2 och ett tlertal radiellt utanför denna anordnade och jämnt över omkretsen fördelade axiella kanaler 3. Kanalerna 3 är från kateterns utsida perforerade med ett stort antal. mycket små kapillârhål 4. Dessa kan vara belägna i längsgående för- djupningar-9 på kateterns 1 utsida såsom visas i fig. 1 och 2 eller ha avrundad kant utåt (tig. 3) ïör att undvika skador på slemhinnan.
Till de axiella kanalerna 3 är avsett att anslutas t.ex. en tryckluftskâlla eller ett vätsketryck. så att man under införandet av katetern erhåller en smörjning av dennas utsida. Även under inläggningstiden kan en kontinuerlig eller med visst mellanrum återkommande spolning av katetern ske för att minska irritationen av slemhinnorna samt eliminera infektions- risken. Det är även möjligt att växelvis ansluta kanalerna 3 till en tryck- resp. sugkâlla eller att vissa kanaler 3, t.ex. varannan. är ansluten till en tryckkälla medan övriga är an- slutna till en sugkälla. Härigenom erhålls en dränering av spolmediet samt av eventuellt sekret och liknande.
En annan möjlighet att utnyttja kapillârerna A är att de axiella kanalerna 3 fylls med ett gel- eller krämartad medel, vilket stryks av mot kroppshâlighetens väggar vid kontakt med dessa och åstadkommer en smörjning av kateterns 1 utsida.
Genom kapillârverkan fylls kapillärerna 4 med nytt medel så länge en tillräcklig fyllnadsgrad föreligger i de axiella kanalerna 3. Detta förutsätter att kanalerna 3 vid kateterns införingsânde år tillslutna. såsom visas i figur 3.
Tillverkningen av katetern kan ske på olika sätt, varav ett är koextrudering av tvâ slangar en inre cirkulär slang 5 och en yttre slang 6, viken på insidan uppvisar längsgående pro- fileringar 7 för bildande av de axiella kanalerna 3.
Naturligtvis kan istället den inre slangen 3 på utsidan upp- 3 8403474-3 Visa längsgående proileringar, varvid den yttre slangen G kan vara slät.
Genom att låta den yttre slangen 5 avslutas något tidigare än den inre slangen 3 ges möjlighet att ansluta ett anslutningsdøn 8 (figur 4) för tillförsel av tryckluft, vätska eller kräm till de axiella kanalerna 3.
Katetern 1 kan naturligtvis även tillverkas i ett enda stycke.
Uppfinningen är naturligtvis inte begränsad till de visade och beskrivna utföringsexemplen utan att ïlertal varianter är tänkbara inom ramen för de efterföljande patentkraven.

Claims (5)

34o3474»a i PATENTKRÅV
1. Kateter. sund eller liknande anordning avsedd att införas i en kroppshâlighet och vilken över en väsentlig del av sin längd är dubbelväggig, varvid den yttre väggen (6) via ett flertal kapillårhål (4) står i förbindelse med kateterns utsida, k ä n n e t e c k n a d d ä r a v, att den inre väggen (5) på utsidan och eller den yttre väggen (S) på insidan uppvisar längsgående profileringar (7) för bil- dande av separata längsgående kanaler (3) mellan väggarna (5,6) vilka kanaler (3) uppvisar sagda kapillârhål.
2. Kateter enligt patentkravet 1. k ä n n e t e c k n a d d ä r a v, att kapillärhålen (4) uppvisar avrundade kanter vid kateterns utsida.
3. Kateter enligt patentkravet 1 eller 2. k ä n n e t e c k n a d d ä r a v. att kapillârhålen (4) uppvisar avrundade kanter vid kateterns utsida.
4. 6. Kateter enligt något eller några av föregående patentkrav. k å n n e t e c k n a d d ä r a V, att den utgöres av två koextruderade slangar, en inre (5) och en yttre slang (6). varvid den inre slangen på utsidan och eller den yttre slangen på insidan uppvisar längsgående profi- leringar (7) tör bildande av sagda hålighet(-er)(3).
5. Kateter enligt patentkravet 4. k å n n e t e c k n a d d ä r a v, att den yttre slangen (6) år avslutad tidigare ån den inre slangen (5) vid kateterns (3) bakre ände för att medge anslut- ning av ett anslutningsdon (8) till den yttre slangen.
SE8403474A 1984-06-29 1984-06-29 Kateter, sond eller liknande anordning SE442377B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8403474A SE442377B (sv) 1984-06-29 1984-06-29 Kateter, sond eller liknande anordning
EP85903434A EP0189453A1 (en) 1984-06-29 1985-07-01 A catheter, probe or similar device
JP60503201A JPS61502521A (ja) 1984-06-29 1985-07-01 カテ−テル，さぐり針，または類似な装置
AU46009/85A AU4600985A (en) 1984-06-29 1985-07-01 A catheter,probe or similar device
US06/841,516 US4717379A (en) 1984-06-29 1985-07-01 Catheter, probe or similar device
PCT/SE1985/000267 WO1986000232A1 (en) 1984-06-29 1985-07-01 A catheter, probe or similar device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8403474A SE442377B (sv) 1984-06-29 1984-06-29 Kateter, sond eller liknande anordning

Publications (2)

Publication Number Publication Date
SE8403474D0 SE8403474D0 (sv) 1984-06-29
SE442377B true SE442377B (sv) 1985-12-23

Family

ID=20356393

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8403474A SE442377B (sv) 1984-06-29 1984-06-29 Kateter, sond eller liknande anordning

Country Status (6)

Country Link
US (1) US4717379A (sv)
EP (1) EP0189453A1 (sv)
JP (1) JPS61502521A (sv)
AU (1) AU4600985A (sv)
SE (1) SE442377B (sv)
WO (1) WO1986000232A1 (sv)

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AU4600985A (en) 1986-01-24
US4717379A (en) 1988-01-05
SE8403474D0 (sv) 1984-06-29
EP0189453A1 (en) 1986-08-06
JPS61502521A (ja) 1986-11-06
WO1986000232A1 (en) 1986-01-16

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