CA1191413A - Removable hemostasis valve - Google Patents
Removable hemostasis valveInfo
- Publication number
- CA1191413A CA1191413A CA000459209A CA459209A CA1191413A CA 1191413 A CA1191413 A CA 1191413A CA 000459209 A CA000459209 A CA 000459209A CA 459209 A CA459209 A CA 459209A CA 1191413 A CA1191413 A CA 1191413A
- Authority
- CA
- Canada
- Prior art keywords
- diaphragm
- catheter
- passage
- valve
- seal
- 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.)
- Expired
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE Removable Hemostasis Valve A hemostasis valve comprising a body having a central passage, a seal having a central aperture therein, the seal being mounted in the central passage, and a dia-phragm having a wall member with a slit therein, the diaphragm being mounted in the central passage. The body has fast connector means in the form of screw threads.
Description
I~l`MOVABT.E III/MOSriASIS VAIVE
The invention relates to a hemostasis valve corn-prising a body haviny a central passage, and a diaphragm having a wall member with a slit therein, the diaphragm being rnounted in the central passage. In accordance wi-th the invention the valve has fast release connector means preferably in the form oE screw threads.
In the drawings which show a preferred eMbodiment, Fig. l is a cross--sectlonal view of a hemos-tasis valve in accordance with the present invention, Fig. 2 is a cross-sectionai view of a preferred embodiment of the invention with and without a catheter inserted.
Fig. 3 is a perspective view of one embodiment of the self-closing isolation diaphragm of the present inven-tion.
Fig. 4 is a bottom view of the diaphragm of Fig.
3.
Fig. 5 is a side view of the diaphragm of Fig.
T}-e hemostasis valve i.s shown generally a-t 1. The valve housing 2 has a re-taini.ng cap 3 thereover. The retaining cap 3 is preferably made of plastic. A cathe-ter seal 4 is held in place by the retai.ning cap 3. A self-closina isolation diaphra~m 5 has diaphragm upper flange surface 27 which is in con-tac-t with catheter seaL lower surface 28. The self-closing isolati.on diaphragm 5 has diaphragm wa]l member 37. The diaphragm wall member 37 has diaphragm i.nner side surface 33, diaphragm outer bottom surface 21 and dia-phragrn inner bottom surface 34. The self-closing isolation diaphragm chamber 11 is bounded by diaphragm inner side su:rface 33 and diaphragm inner bottom surface 34. The self-closing isolation diaph:ragrn flallge 32 has diaphragm lower flange surface 25 which is in contact with valve housing top surface 26. The retaining cap provides fluid-tight sealing by its tight retention with retaining cap rib 20 which fi.ts into valve housing groove 19. The fit hetween the retaininq cap 3, catheter seal 4 and the self-closing isolation diaphragm flange 32 is such that the catheter seal and the diaphragm flange 32 are compres-sed by the retaining cap 3. The catheter seal 4 and the diaphragm flange 32 are held in compression by the retain-ing cap rib 20. The retaining cap 3 is provided with re-~L~91~
-tain:ing {'ap bevelecl surfclce 15 which sl.opes into retainirlg cap aperture 13 through which a catheter tube may be inserted. The cathe-ter seal 4 is provided with catheter seal aper-ture 14. Thu.s, when a catheter is inserted throuc3h the valve it would extend through the re-taining cap aperture 13, the catheter seal aperture 14 and -the self-closing isolation diaphra~3m chamber ]1 whereupon it would meet the diaphragm inner bot-tom surface 34 at the diaphragm slit 12. The slit 1~ opens to al.low passage of the catheter being inserted and the cat.heter passes into and throuc3h the lower central passage 10. The lower central passaye inner surface 9 provides support for the catheter. The self-closing isolation diaphragm 5 is provided with a diaphragm outer side surface 35. The surface 35 is i.ntegrally connected with diaphragm rib 38. The diaphragm rib 38 has a diaphragm rib side surface 36 and diaphragm rib bot-tom surface 22.
~ Upon forcing the catheter through the diaphragm slit 12 the diaphragm rib 38 compresses against the upper central passage wall 24. Upon withdrawing the catheter from the hemostasis valve 1 the compressed dia-phragm rib 38 expands to its original position, causing the diaphragm slit 12 to close.
The hemostasis valve 1 is provided with a fast release connector 6 having connector threads 7 which are available to connect the valve to the flange 52 of fast connec-~ fas-tener 39 as shown in ~igure 2. The connec-tor chamber wall 30 surrounds a connec-tor chamber 29.
The hemostasis valve is further provided with a side passage 18. The side passage 18 has side passage inner surface 16. Side passage outer surface 17 extends outwardly from -the valve housing 2. Fast connect fastener passage 49 has East connect passage inner sur-face 48 through which the catheter C passes. The tubing 41 has tubing flange 43 which holds the tubing 41 to the fast connect fastener 39. The fastener cap 40 has fastener cap threads 44 which are threaded onto fast connect fastener threads 45. As the fastener cap 40 is threaded onto the fast connect fastener 39 the fastener cap flange 42 compresses the tubing flange 43 against the lower fast connect fastener surface 57. The tubing 41 has a tubing passage inner wall 46 which surrounds the tubing passage 47. The tubing 41 has a tubing pass-age outer surface 51 which is supported at its upper end by fastener cap inner surface 50~
Figure 2 shows a modified version of -the cath-eter seal in the form of cushion seal 104 having a cushion lip outer curved surface 56 and a cushion lip inner curved surface 55. The cushion lip inner cllrved t~ r~l(e 55 has cus}~~ion lip l-)eveled surftlce 54 which is in contact with lipped diaphragm 132. T.iF~ped cl:iclphragm 132 has a diar~hragm lip 53 and slit l12. The lower central passaye of -the fas-t rel~ase connect~r has a central axis A-A as shown ln Fiqure 1. The fast release connector 6 is concentric with the ]ower cen-tral passage 10. The fast connect fastener 39 is coaxial with the lower central passage 10.
As shown in Figure 2 when a ca-theter C is inserted into the cushion seal the cushion lip outer curved surface flexibly suppor-ts the catheter. As the catheter passes through the slit 112 of -the li.pped diaphragm 132 the diaphragm lip 53 is carried downwardly into the lower central passage 10. ~pon further insertion the catheter passes through the fast connect fastener passage 49 and into the tublng passage 47.
In use fluids may be transferred through the catheter C i.nto the blood vessel of the patient.
The hemostasis valve is operable for easy entry of the catheter C and ye-t provides for positive closing as the cathe-ter C is removed. The diaphra~m prevents any leakage either inward or outward with applied pressures to as high as 500 mm Hg. The hemostasis valve is operable so that the tubing 41 may be separated from the valve housing 2, leaving the tubing in place. This al~ows for repl~cing the valve housing 2 in case it is darnaged or contaminated. T}lis makes it unnecessary to prepare a new entry site in the patient. Figure 2 shows a preferred embodiment of the invention with a cushioned seal which prevents leakage even when the catheter C is displaced to one side.
To the left of the center line in Figure 2 an embodiment is shown with a catheter inserted. To the right of the center line in Figure 2 an embodiment is shown without a catheter inserted.
In use the fluid is fed through side passage ~8 from a bag of fluid which may be suspended on a pole next to the patient. The ~ fluids may contain antibiotics,nutrients, or any suitable liquid useful for intravenous passage into the patient From the side passage 18, the fluid travels into and ~ownwardly in the central passage 58 by first passing through the lower central passage 10. The fluid continues downwardly through the fast connect fastener pas-sage 49 and into the tubing passage 47~ the tubiny 41 having previously been inserted into the patient's vessel. The insertion of the tubing 41 into the patient's vessel may be done as is known in the art. For example, the patient's vessel may be opened by cutting followed by insertion of a 3~ string dilator. Into the string dilator is inserted the tubing 41.
In using the h~nostasis valve 1 in conjur)ction with the tubing 41 after it has been i~serted into a vessel of the patient with fast connect fastener ~9 attached to the end of tubing 41, the hcmostasis valve 1 may be connected to the fast connect fastener 39.
When the valve 1 is connected, as just mentione~
a catheter may be inserted as partially shown in Figure 2 to the left side of the center line. The path followed by the catheter provides for vers tility of access to the patient's vessel by catheters of various sizes and lengths and curvatures. Additionally, this pa~h may be used for high volume of fluid deliv-ery to the patient's vessel by using a large diametertubular catheter tv conve~ fluids therethrough~
When several different catheters have been inserted in the patient's vessel, they may be passed through the self-closing isolationdiaphragm ; and the catheter seal 4 into the lower central passage 10 and on downwardly as previously discussed. In place, the self-closing isolation~iaphragm 5, provides fluid tight sealing around the catheter so that leakage does not occur. Upon removing the catheter, the sel~ closing isolationdiaphragm 5 seals the upper central passage 59 so that blood or other fluids from the lower central passage 10 are not lost or contamin-ated. The diaphragm wall membex 37 preferably has a dome shape as shown in Figure 1 and Figure 2~ Inherent in this shape, is the support needed to seal the slit 12 w}~ile rcsisting fl~ e.sure in l~,~er ccntral passage 10 and upper centra] passage 59. The diaphr~m rib 38 assists in maintaining fluid-tight sealing axound the catheter C wl-ile it is inserted through the self-closing diaphram 5. The diapllragm rib 38 also hclps to return the self-closing diaphragm to its closed ~osition with the slit 12 closed after the catheter C is withdrawn from the valve 1.
The self-closing isolation diaphragrn 5 is prefer-ably made of a f lexible material such as natural or synthetic rubber. S.unilarly, the catheter seal 4 is preferably n~ade of natural or synthetic rubber
The invention relates to a hemostasis valve corn-prising a body haviny a central passage, and a diaphragm having a wall member with a slit therein, the diaphragm being rnounted in the central passage. In accordance wi-th the invention the valve has fast release connector means preferably in the form oE screw threads.
In the drawings which show a preferred eMbodiment, Fig. l is a cross--sectlonal view of a hemos-tasis valve in accordance with the present invention, Fig. 2 is a cross-sectionai view of a preferred embodiment of the invention with and without a catheter inserted.
Fig. 3 is a perspective view of one embodiment of the self-closing isolation diaphragm of the present inven-tion.
Fig. 4 is a bottom view of the diaphragm of Fig.
3.
Fig. 5 is a side view of the diaphragm of Fig.
T}-e hemostasis valve i.s shown generally a-t 1. The valve housing 2 has a re-taini.ng cap 3 thereover. The retaining cap 3 is preferably made of plastic. A cathe-ter seal 4 is held in place by the retai.ning cap 3. A self-closina isolation diaphra~m 5 has diaphragm upper flange surface 27 which is in con-tac-t with catheter seaL lower surface 28. The self-closing isolati.on diaphragm 5 has diaphragm wa]l member 37. The diaphragm wall member 37 has diaphragm i.nner side surface 33, diaphragm outer bottom surface 21 and dia-phragrn inner bottom surface 34. The self-closing isolation diaphragm chamber 11 is bounded by diaphragm inner side su:rface 33 and diaphragm inner bottom surface 34. The self-closing isolation diaph:ragrn flallge 32 has diaphragm lower flange surface 25 which is in contact with valve housing top surface 26. The retaining cap provides fluid-tight sealing by its tight retention with retaining cap rib 20 which fi.ts into valve housing groove 19. The fit hetween the retaininq cap 3, catheter seal 4 and the self-closing isolation diaphragm flange 32 is such that the catheter seal and the diaphragm flange 32 are compres-sed by the retaining cap 3. The catheter seal 4 and the diaphragm flange 32 are held in compression by the retain-ing cap rib 20. The retaining cap 3 is provided with re-~L~91~
-tain:ing {'ap bevelecl surfclce 15 which sl.opes into retainirlg cap aperture 13 through which a catheter tube may be inserted. The cathe-ter seal 4 is provided with catheter seal aper-ture 14. Thu.s, when a catheter is inserted throuc3h the valve it would extend through the re-taining cap aperture 13, the catheter seal aperture 14 and -the self-closing isolation diaphra~3m chamber ]1 whereupon it would meet the diaphragm inner bot-tom surface 34 at the diaphragm slit 12. The slit 1~ opens to al.low passage of the catheter being inserted and the cat.heter passes into and throuc3h the lower central passage 10. The lower central passaye inner surface 9 provides support for the catheter. The self-closing isolation diaphragm 5 is provided with a diaphragm outer side surface 35. The surface 35 is i.ntegrally connected with diaphragm rib 38. The diaphragm rib 38 has a diaphragm rib side surface 36 and diaphragm rib bot-tom surface 22.
~ Upon forcing the catheter through the diaphragm slit 12 the diaphragm rib 38 compresses against the upper central passage wall 24. Upon withdrawing the catheter from the hemostasis valve 1 the compressed dia-phragm rib 38 expands to its original position, causing the diaphragm slit 12 to close.
The hemostasis valve 1 is provided with a fast release connector 6 having connector threads 7 which are available to connect the valve to the flange 52 of fast connec-~ fas-tener 39 as shown in ~igure 2. The connec-tor chamber wall 30 surrounds a connec-tor chamber 29.
The hemostasis valve is further provided with a side passage 18. The side passage 18 has side passage inner surface 16. Side passage outer surface 17 extends outwardly from -the valve housing 2. Fast connect fastener passage 49 has East connect passage inner sur-face 48 through which the catheter C passes. The tubing 41 has tubing flange 43 which holds the tubing 41 to the fast connect fastener 39. The fastener cap 40 has fastener cap threads 44 which are threaded onto fast connect fastener threads 45. As the fastener cap 40 is threaded onto the fast connect fastener 39 the fastener cap flange 42 compresses the tubing flange 43 against the lower fast connect fastener surface 57. The tubing 41 has a tubing passage inner wall 46 which surrounds the tubing passage 47. The tubing 41 has a tubing pass-age outer surface 51 which is supported at its upper end by fastener cap inner surface 50~
Figure 2 shows a modified version of -the cath-eter seal in the form of cushion seal 104 having a cushion lip outer curved surface 56 and a cushion lip inner curved surface 55. The cushion lip inner cllrved t~ r~l(e 55 has cus}~~ion lip l-)eveled surftlce 54 which is in contact with lipped diaphragm 132. T.iF~ped cl:iclphragm 132 has a diar~hragm lip 53 and slit l12. The lower central passaye of -the fas-t rel~ase connect~r has a central axis A-A as shown ln Fiqure 1. The fast release connector 6 is concentric with the ]ower cen-tral passage 10. The fast connect fastener 39 is coaxial with the lower central passage 10.
As shown in Figure 2 when a ca-theter C is inserted into the cushion seal the cushion lip outer curved surface flexibly suppor-ts the catheter. As the catheter passes through the slit 112 of -the li.pped diaphragm 132 the diaphragm lip 53 is carried downwardly into the lower central passage 10. ~pon further insertion the catheter passes through the fast connect fastener passage 49 and into the tublng passage 47.
In use fluids may be transferred through the catheter C i.nto the blood vessel of the patient.
The hemostasis valve is operable for easy entry of the catheter C and ye-t provides for positive closing as the cathe-ter C is removed. The diaphra~m prevents any leakage either inward or outward with applied pressures to as high as 500 mm Hg. The hemostasis valve is operable so that the tubing 41 may be separated from the valve housing 2, leaving the tubing in place. This al~ows for repl~cing the valve housing 2 in case it is darnaged or contaminated. T}lis makes it unnecessary to prepare a new entry site in the patient. Figure 2 shows a preferred embodiment of the invention with a cushioned seal which prevents leakage even when the catheter C is displaced to one side.
To the left of the center line in Figure 2 an embodiment is shown with a catheter inserted. To the right of the center line in Figure 2 an embodiment is shown without a catheter inserted.
In use the fluid is fed through side passage ~8 from a bag of fluid which may be suspended on a pole next to the patient. The ~ fluids may contain antibiotics,nutrients, or any suitable liquid useful for intravenous passage into the patient From the side passage 18, the fluid travels into and ~ownwardly in the central passage 58 by first passing through the lower central passage 10. The fluid continues downwardly through the fast connect fastener pas-sage 49 and into the tubing passage 47~ the tubiny 41 having previously been inserted into the patient's vessel. The insertion of the tubing 41 into the patient's vessel may be done as is known in the art. For example, the patient's vessel may be opened by cutting followed by insertion of a 3~ string dilator. Into the string dilator is inserted the tubing 41.
In using the h~nostasis valve 1 in conjur)ction with the tubing 41 after it has been i~serted into a vessel of the patient with fast connect fastener ~9 attached to the end of tubing 41, the hcmostasis valve 1 may be connected to the fast connect fastener 39.
When the valve 1 is connected, as just mentione~
a catheter may be inserted as partially shown in Figure 2 to the left side of the center line. The path followed by the catheter provides for vers tility of access to the patient's vessel by catheters of various sizes and lengths and curvatures. Additionally, this pa~h may be used for high volume of fluid deliv-ery to the patient's vessel by using a large diametertubular catheter tv conve~ fluids therethrough~
When several different catheters have been inserted in the patient's vessel, they may be passed through the self-closing isolationdiaphragm ; and the catheter seal 4 into the lower central passage 10 and on downwardly as previously discussed. In place, the self-closing isolation~iaphragm 5, provides fluid tight sealing around the catheter so that leakage does not occur. Upon removing the catheter, the sel~ closing isolationdiaphragm 5 seals the upper central passage 59 so that blood or other fluids from the lower central passage 10 are not lost or contamin-ated. The diaphragm wall membex 37 preferably has a dome shape as shown in Figure 1 and Figure 2~ Inherent in this shape, is the support needed to seal the slit 12 w}~ile rcsisting fl~ e.sure in l~,~er ccntral passage 10 and upper centra] passage 59. The diaphr~m rib 38 assists in maintaining fluid-tight sealing axound the catheter C wl-ile it is inserted through the self-closing diaphram 5. The diapllragm rib 38 also hclps to return the self-closing diaphragm to its closed ~osition with the slit 12 closed after the catheter C is withdrawn from the valve 1.
The self-closing isolation diaphragrn 5 is prefer-ably made of a f lexible material such as natural or synthetic rubber. S.unilarly, the catheter seal 4 is preferably n~ade of natural or synthetic rubber
Claims (2)
1. In a hemostasis valve comprising a body and a diaphragm having a wall member with a slit therein, said body having a central passage, the improvement wherein said valve comprises fast release connector means.
2. The valve of claim 1 wherein said connector means comprises threads.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/267,984 US4436519A (en) | 1981-05-28 | 1981-05-28 | Removable hemostasis valve |
| US267,984 | 1981-05-28 | ||
| CA000402421A CA1185857A (en) | 1981-05-28 | 1982-05-06 | Removable hemostasis valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1191413A true CA1191413A (en) | 1985-08-06 |
Family
ID=25669672
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000459210A Expired CA1191414A (en) | 1981-05-28 | 1984-07-18 | Diaphragm for a self-sealing valve |
| CA000459209A Expired CA1191413A (en) | 1981-05-28 | 1984-07-18 | Removable hemostasis valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000459210A Expired CA1191414A (en) | 1981-05-28 | 1984-07-18 | Diaphragm for a self-sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA1191414A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012004123A1 (en) * | 2010-07-06 | 2012-01-12 | Fresenius Medical Care Deutschland Gmbh | Disposable connector for hemofiltration |
-
1984
- 1984-07-18 CA CA000459210A patent/CA1191414A/en not_active Expired
- 1984-07-18 CA CA000459209A patent/CA1191413A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012004123A1 (en) * | 2010-07-06 | 2012-01-12 | Fresenius Medical Care Deutschland Gmbh | Disposable connector for hemofiltration |
| CN102958559A (en) * | 2010-07-06 | 2013-03-06 | 弗雷森纽斯医疗护理德国有限责任公司 | Disposable connector for hemofiltration |
| EP2962722A1 (en) * | 2010-07-06 | 2016-01-06 | Fresenius Medical Care Deutschland GmbH | Disposable connector for hemofiltration |
| US9352139B2 (en) | 2010-07-06 | 2016-05-31 | Fresenius Medical Care Deutschland Gmbh | Disposable connector for hemofiltration |
| US10279158B2 (en) | 2010-07-06 | 2019-05-07 | Fresenius Medical Care Deutschland Gmbh | Disposable connector for hemofiltration |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1191414A (en) | 1985-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20040718 |