CA2079277A1 - Surgical lighting clip - Google Patents
Surgical lighting clipInfo
- Publication number
- CA2079277A1 CA2079277A1 CA002079277A CA2079277A CA2079277A1 CA 2079277 A1 CA2079277 A1 CA 2079277A1 CA 002079277 A CA002079277 A CA 002079277A CA 2079277 A CA2079277 A CA 2079277A CA 2079277 A1 CA2079277 A1 CA 2079277A1
- Authority
- CA
- Canada
- Prior art keywords
- clip
- hemostatic clip
- tissue contacting
- indentations
- contacting surface
- 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.)
- Abandoned
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
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S227/00—Elongated-member-driving apparatus
- Y10S227/902—Surgical clips or staples
Abstract
ABSTRACT
A hemostatic clip for application to body tissue, having first and second legs, each leg having a tissue contacting surface and at least two side surfaces intersecting the tissue contacting surface and defining a width of the leg therebetween. The tissue contacting surface has at least one indentation disposed thereon across less than the entire width of the tissue contacting surface and intersecting one of the side surfaces.
A hemostatic clip for application to body tissue, having first and second legs, each leg having a tissue contacting surface and at least two side surfaces intersecting the tissue contacting surface and defining a width of the leg therebetween. The tissue contacting surface has at least one indentation disposed thereon across less than the entire width of the tissue contacting surface and intersecting one of the side surfaces.
Description
SURGICAI, LIGATING CI~? 2 0 7 9 2 7 7 BACKGROUND OF THE INVENTION
1. Field of the Invention The present invention relates to a surgical clip, and more particularly to a hemostatie elip to be applied to blood vessels.
1. Field of the Invention The present invention relates to a surgical clip, and more particularly to a hemostatie elip to be applied to blood vessels.
2. Back~round of the Art 1 5 Ligation or ocelusion of veins, arteries or blood vessels has been a neeessary part of surgieal proeedures for many years. Initially, surgeons used thread or suture material to tie a blood vessel prior to severing the vessel. This proeedure required both skill and time on the part of the surgeon to properly close the vessel.
20 In many instanees, assistanee of a nurse or attending surgeon was necessary and typieally, a severed blood vessel would require elosure on both sides of a severanee site before aetual eutting eould take place. The advent of surgical clips and clip appliers has greatly enhaneed this procedure.
Surgical clips are now commonly used and various types of surgical hemostatie elips are deseribed in U.S. Patent Nos. 4,976,722; 4,844,066; 4,702,247;
4,188,953; 3,867,944; and 3,363,628.
Many faetors are critical to the design of a surgical elip. Among these, it is important that the clip not slip or become dislodged from a blood vessel after the blood vessel is severed. In that instance, blood will immediately begin flowing into 2~7~277 the surgery site through the unclamped vessel requiring the operation be delayedwhile the critical vessel is located and reclamped. Depending on the type and location of the surgery, locating the vessel may be difficult and the time delay could 5 cause medical complications to the patient.
Similarly, a clip must be designed to fully and completely close about a vein, artery or blood vessel and completely stop the flow of blood through thesepathways. A clip which does not completely occlude the flow of blood is useless for 10 its intended function. In addition, if the clip is of such a size or is designed in such a manner that during deformation about a vessel a portion of the vessel is allowed to extend beyond the tips of the clip legs, the clip will obviously not completely restrict the flow of blood and similar serious problems could arise. Consequently, besides insuring that the vessel is completely trapped within the clip, the clip must bedesigned such that when it is completely formed about a vessel the flow of bloodthrough the vessel is completely precluded.
Generally, surgical clips are U-shaped or V-shaped members having two legs joined at an apex or crown portion and spaced apart at the opposite end.
20 The inside or tissue-engaging surfaces of the clip legs may be treated in some manner, such as having spaced of grooves, in an attempt to improve the occludingfunctions of the clip and restrict movement of the clip after the c]ip has been deformed about a blood vessel. See, e.g., U.S. Patent No. 4,799,481 to 25 Transue et al.
Despite known clip designs, an improved clip is needed to provide optimum vessel occlusion and clip retention on tissue.
, . ,, .,, ~, . .
2~79277 SUMI\ IARY
A hemostatic clip ~or application to body tissue, such as blood vessels, 5 is provided hereim The hemostatic clip includes first and second legs, each leg having a tissue contacting surface and at least two side surfaces intersecting said tissue contacting surface and defining a width of said leg therebetween. The tissue contacting surface has at least one indentation disposed thereon across less than the 10 entire width of the tissue contacting surface and intersecting a side surface.
Preferably, the indentations are semicircular and each leg includes a plurality of indentations arranged in staggered arrangement in first and second rows, the indentations intersecting with a respective one or the other of the side surfaces. The intersection of the indentation wilh the side surfaces defines an opening in lhe side surface to facilitate the flow of blood or other body fluids to the body tissue held by the clip. The hemostatic clip of the present invention provides excellent vesselocclusion and resists movement in directions both longitudinally along and transverse to the clipped blood vessel.
BR~EF DESCRIPTION OF Tl-IE D~AWlNGS
Fig. 1 is a perspective view of the surgical clip of the present 5 invention.
Fig. 2 is a plan view of the surgical clip.
Fig. 3 illustrates the inner side of a leg of the surgical clip.
Fig. 4 is an end view of lhe surgical c]ip.
Fig. 5 is a seclional view illustrating a V-shaped no~ch in the clip.
~, .. .
.... ~ . . .
2~79277 Fig. 6 is a perspective view illustrating the application of the clip of the present inven~ion to a tubular organic struc~ure.
Fig. 7 is a perspective view of a prior art clip.
DETAILE;D DESCRTPTION O~ P~EFERREV EMBODlMENTS
The surgical clip of the present invention is a generally U-shaped or V-10 shaped member which is applied by an appropriate clip applying apparatus. The clip applying apparatus generally has means to position the clip around body tissue such as a blood vessel, and means to deform the clip, usually by bending the clip at its apex so that the legs of the clip close off the blood vessel. Two surgical fastener applying instruments suitable for use in applying the surgical clip of the present invention are disclosed and described in U.S. 4,509,518 to McGarry et al. and U.S. applicationSerial No. 071381,265 filed on July 18, 1989, both of which are herein incorporated by reference.
Referring to Fig. 1, the surgical clip 100 includes legs 110 having 20 parallel distal end portions 111, curved portions 112, and proximal portions 113 of the legs which culminate in apex 130 and together form a generally V-shape or U-shaped bail end of the clip. The parallel end portions 111 of the legs include on their respective inner, tissue contacting surfaces 111c, a plurality of indentations 140 and 25 bevelled ends 120. The end portions also include outer surfaces 111d, and upper and lower surfaces 111a and 111b, respectively. The side surfaces 111a and lllb define planes generally transverse to the planes of the inner and outer surfaces 111c and llld. The proximal portions 113 each include on their inner surface an elongated30 notch 150 extending lengthwise along the portions 113. The notch 150 has a generally V-shaped cross section.
-5 ~7~2~7 More particularly, referring to Figs. 2, 3, 4, and 5, the surgical clip 100 includes two staggered rows of generally semicircular indentations 140 on the inner surfaces of each of the distal end portions 111 of the legs 110. There are ~hree 5 indentations 140 per IOW. The indentations 140 each comprise an arcuate wall 141 defining an open area 143 bounded by the intersection of the arcuate wall 141 with a respective one of the side surfaces llla and lllb, the open areas 143 a]lowing fluid flow into body tissue contained in the indentations when the clip is applied to the 1 O organic body structure. The open areas 143 of one row of indentations on one leg 110 face in a direction opposite to the indentations 143 of the other, staggered row on the same leg. While a semicircular shape is preferred for the arcuate wall otherarcuate and non-arcuate configurations are a]so usable. Notches 150 provide added tissue resistance. Apex 130 facilitates the crimping of clip 100 when the clip is applied to body tissue by a clip applicator.
The clip 100 may be of any dimension suitable for application to body tissue. In one preferred embodirnent, the length L of the clip is about 0.3 inches, the width Wl of the clip is from about 0.212 to about 0.216 inches, the width W2 of the 20 clip's legs is from about 0.034 to about 0.036 inches, the radius of the indentations is about 0.014 inches, the depth D-1 of the indentations 140 is from about 0.005 toabout 0.007 inches, and lhe depth D-2 of the notch 150 is from about 0.002 to about 0.004 inches along the center line. The angle A formed by proximal portions 113 25 preferably can be from about 129 to about 131. ~ne skilled in the art will recognize that other dimensions can also be used.
The clip 100 can be fabricated from any surgically suitable material such as stainless steel, titanium, tantalum, or other metal alloys, as well as plastics 30 including bioabsorbable polymers.
.. .. ... .. .
-6- 2~79277 Fig. 6 illustra~es the application of the clip of ~he present invention to body tissue. As can be seen in Fig. 6, a tubular organic s~ructure such as bloodvessel 300 is clipped in two locations with clips 100 of the present invention, thereby 5 closing interior passageway 320 of the blood vessel and perm;tting a division 310 of the blood vessel by a knife blade slicing between the clips 100. Clips 100 seal the newly created ends of the blood vessel 300 such that ~he flow of blood !herethrough is completely occluded. However, while the flow of blood through the vessel 10 passageway 320 is stopped, openings 143 created by the intersection of the indentations 140 with one of the side surfaces llla permit the flow of nourishing body fluid within the wall of blood vessel 300 to the portion of the blood vessel tissue located in the indentations 140. This advantageous feature reduces the possibility of tissue necrosis.
While Fig. 6 illustrates a ligating and dividing operation accomplished by instruments well known in the art, other operations where surgical clips are called for are contemplated as suitable applications for the clips of the present invention.
Thus, a clip may be used singly, or in combination with other clips, the clips may be 20 applied to various types of organic body structures which may or may not be divided, depending on the type of operation being performed.
-'' ' ', ' ' - ,- .
7 2~79277 Samples were provided of titanium clips of the present invention as 5 illustrated in Figs. 1 ~o 5 and the foregoing description For comparison, samples were provided of .itanium clips of known configuration as illustrated in Fig. 7, i.e., a prior art design not contemplated as an embodiment of the present invention.
Both types of clips were of the same size and shape except for the configuration of the indentations. The prior art samples 600 included on each leg 610 a set of generally V-shaped notches 620 which did not intersect with the side surfaces 630.
A surgical clip applying instrument was provided and alternately loaded and fired wi~h clips of tl-e present invention and the prior known clip described above.
Clips were applied to blood vesse]s of various sizes, and to porcine cystic duct tissue to determine which type clip provided higher (i.e. better) pull force, 20 i.e., the force necessary to pull the clip off the vessel. The following results were obtained:
1. Blood vessel test -- There was no observed statistical difference between the mean pull force of each clip. However, the prior art clip exhibited lower 25 individual pull force data points, i.e., 100 gram pull force for the clip of the present invention versus 60 gram pull force for the prior art clip.
2. Porcine cystic duct -- The clips of the present invention exhibited a higher mean pull force, 77.5 grams, versus a 52.5 gram mean pull force for the prior 30 art clip. The clips of the present invention also had higher individual low data points, i.e., 70 grams pull force, versus the 40 gram pull force of the prior art clip.
-. .
-8- 2~7~77 These data show that the clips of the present inven~ion provide improved resistance to being dislodged from body tissue as compared wilh the prior known clip.
While the above description contains many specifics, these specifics should not be construed as limitations on the scope of the invention, but merely as exemplifications of preferred embodiments thereof. Those skilled in the art willenvision many other possible variations that are within the scope and spirit of the 10 invention as defined by the claims appended hereto.
20 In many instanees, assistanee of a nurse or attending surgeon was necessary and typieally, a severed blood vessel would require elosure on both sides of a severanee site before aetual eutting eould take place. The advent of surgical clips and clip appliers has greatly enhaneed this procedure.
Surgical clips are now commonly used and various types of surgical hemostatie elips are deseribed in U.S. Patent Nos. 4,976,722; 4,844,066; 4,702,247;
4,188,953; 3,867,944; and 3,363,628.
Many faetors are critical to the design of a surgical elip. Among these, it is important that the clip not slip or become dislodged from a blood vessel after the blood vessel is severed. In that instance, blood will immediately begin flowing into 2~7~277 the surgery site through the unclamped vessel requiring the operation be delayedwhile the critical vessel is located and reclamped. Depending on the type and location of the surgery, locating the vessel may be difficult and the time delay could 5 cause medical complications to the patient.
Similarly, a clip must be designed to fully and completely close about a vein, artery or blood vessel and completely stop the flow of blood through thesepathways. A clip which does not completely occlude the flow of blood is useless for 10 its intended function. In addition, if the clip is of such a size or is designed in such a manner that during deformation about a vessel a portion of the vessel is allowed to extend beyond the tips of the clip legs, the clip will obviously not completely restrict the flow of blood and similar serious problems could arise. Consequently, besides insuring that the vessel is completely trapped within the clip, the clip must bedesigned such that when it is completely formed about a vessel the flow of bloodthrough the vessel is completely precluded.
Generally, surgical clips are U-shaped or V-shaped members having two legs joined at an apex or crown portion and spaced apart at the opposite end.
20 The inside or tissue-engaging surfaces of the clip legs may be treated in some manner, such as having spaced of grooves, in an attempt to improve the occludingfunctions of the clip and restrict movement of the clip after the c]ip has been deformed about a blood vessel. See, e.g., U.S. Patent No. 4,799,481 to 25 Transue et al.
Despite known clip designs, an improved clip is needed to provide optimum vessel occlusion and clip retention on tissue.
, . ,, .,, ~, . .
2~79277 SUMI\ IARY
A hemostatic clip ~or application to body tissue, such as blood vessels, 5 is provided hereim The hemostatic clip includes first and second legs, each leg having a tissue contacting surface and at least two side surfaces intersecting said tissue contacting surface and defining a width of said leg therebetween. The tissue contacting surface has at least one indentation disposed thereon across less than the 10 entire width of the tissue contacting surface and intersecting a side surface.
Preferably, the indentations are semicircular and each leg includes a plurality of indentations arranged in staggered arrangement in first and second rows, the indentations intersecting with a respective one or the other of the side surfaces. The intersection of the indentation wilh the side surfaces defines an opening in lhe side surface to facilitate the flow of blood or other body fluids to the body tissue held by the clip. The hemostatic clip of the present invention provides excellent vesselocclusion and resists movement in directions both longitudinally along and transverse to the clipped blood vessel.
BR~EF DESCRIPTION OF Tl-IE D~AWlNGS
Fig. 1 is a perspective view of the surgical clip of the present 5 invention.
Fig. 2 is a plan view of the surgical clip.
Fig. 3 illustrates the inner side of a leg of the surgical clip.
Fig. 4 is an end view of lhe surgical c]ip.
Fig. 5 is a seclional view illustrating a V-shaped no~ch in the clip.
~, .. .
.... ~ . . .
2~79277 Fig. 6 is a perspective view illustrating the application of the clip of the present inven~ion to a tubular organic struc~ure.
Fig. 7 is a perspective view of a prior art clip.
DETAILE;D DESCRTPTION O~ P~EFERREV EMBODlMENTS
The surgical clip of the present invention is a generally U-shaped or V-10 shaped member which is applied by an appropriate clip applying apparatus. The clip applying apparatus generally has means to position the clip around body tissue such as a blood vessel, and means to deform the clip, usually by bending the clip at its apex so that the legs of the clip close off the blood vessel. Two surgical fastener applying instruments suitable for use in applying the surgical clip of the present invention are disclosed and described in U.S. 4,509,518 to McGarry et al. and U.S. applicationSerial No. 071381,265 filed on July 18, 1989, both of which are herein incorporated by reference.
Referring to Fig. 1, the surgical clip 100 includes legs 110 having 20 parallel distal end portions 111, curved portions 112, and proximal portions 113 of the legs which culminate in apex 130 and together form a generally V-shape or U-shaped bail end of the clip. The parallel end portions 111 of the legs include on their respective inner, tissue contacting surfaces 111c, a plurality of indentations 140 and 25 bevelled ends 120. The end portions also include outer surfaces 111d, and upper and lower surfaces 111a and 111b, respectively. The side surfaces 111a and lllb define planes generally transverse to the planes of the inner and outer surfaces 111c and llld. The proximal portions 113 each include on their inner surface an elongated30 notch 150 extending lengthwise along the portions 113. The notch 150 has a generally V-shaped cross section.
-5 ~7~2~7 More particularly, referring to Figs. 2, 3, 4, and 5, the surgical clip 100 includes two staggered rows of generally semicircular indentations 140 on the inner surfaces of each of the distal end portions 111 of the legs 110. There are ~hree 5 indentations 140 per IOW. The indentations 140 each comprise an arcuate wall 141 defining an open area 143 bounded by the intersection of the arcuate wall 141 with a respective one of the side surfaces llla and lllb, the open areas 143 a]lowing fluid flow into body tissue contained in the indentations when the clip is applied to the 1 O organic body structure. The open areas 143 of one row of indentations on one leg 110 face in a direction opposite to the indentations 143 of the other, staggered row on the same leg. While a semicircular shape is preferred for the arcuate wall otherarcuate and non-arcuate configurations are a]so usable. Notches 150 provide added tissue resistance. Apex 130 facilitates the crimping of clip 100 when the clip is applied to body tissue by a clip applicator.
The clip 100 may be of any dimension suitable for application to body tissue. In one preferred embodirnent, the length L of the clip is about 0.3 inches, the width Wl of the clip is from about 0.212 to about 0.216 inches, the width W2 of the 20 clip's legs is from about 0.034 to about 0.036 inches, the radius of the indentations is about 0.014 inches, the depth D-1 of the indentations 140 is from about 0.005 toabout 0.007 inches, and lhe depth D-2 of the notch 150 is from about 0.002 to about 0.004 inches along the center line. The angle A formed by proximal portions 113 25 preferably can be from about 129 to about 131. ~ne skilled in the art will recognize that other dimensions can also be used.
The clip 100 can be fabricated from any surgically suitable material such as stainless steel, titanium, tantalum, or other metal alloys, as well as plastics 30 including bioabsorbable polymers.
.. .. ... .. .
-6- 2~79277 Fig. 6 illustra~es the application of the clip of ~he present invention to body tissue. As can be seen in Fig. 6, a tubular organic s~ructure such as bloodvessel 300 is clipped in two locations with clips 100 of the present invention, thereby 5 closing interior passageway 320 of the blood vessel and perm;tting a division 310 of the blood vessel by a knife blade slicing between the clips 100. Clips 100 seal the newly created ends of the blood vessel 300 such that ~he flow of blood !herethrough is completely occluded. However, while the flow of blood through the vessel 10 passageway 320 is stopped, openings 143 created by the intersection of the indentations 140 with one of the side surfaces llla permit the flow of nourishing body fluid within the wall of blood vessel 300 to the portion of the blood vessel tissue located in the indentations 140. This advantageous feature reduces the possibility of tissue necrosis.
While Fig. 6 illustrates a ligating and dividing operation accomplished by instruments well known in the art, other operations where surgical clips are called for are contemplated as suitable applications for the clips of the present invention.
Thus, a clip may be used singly, or in combination with other clips, the clips may be 20 applied to various types of organic body structures which may or may not be divided, depending on the type of operation being performed.
-'' ' ', ' ' - ,- .
7 2~79277 Samples were provided of titanium clips of the present invention as 5 illustrated in Figs. 1 ~o 5 and the foregoing description For comparison, samples were provided of .itanium clips of known configuration as illustrated in Fig. 7, i.e., a prior art design not contemplated as an embodiment of the present invention.
Both types of clips were of the same size and shape except for the configuration of the indentations. The prior art samples 600 included on each leg 610 a set of generally V-shaped notches 620 which did not intersect with the side surfaces 630.
A surgical clip applying instrument was provided and alternately loaded and fired wi~h clips of tl-e present invention and the prior known clip described above.
Clips were applied to blood vesse]s of various sizes, and to porcine cystic duct tissue to determine which type clip provided higher (i.e. better) pull force, 20 i.e., the force necessary to pull the clip off the vessel. The following results were obtained:
1. Blood vessel test -- There was no observed statistical difference between the mean pull force of each clip. However, the prior art clip exhibited lower 25 individual pull force data points, i.e., 100 gram pull force for the clip of the present invention versus 60 gram pull force for the prior art clip.
2. Porcine cystic duct -- The clips of the present invention exhibited a higher mean pull force, 77.5 grams, versus a 52.5 gram mean pull force for the prior 30 art clip. The clips of the present invention also had higher individual low data points, i.e., 70 grams pull force, versus the 40 gram pull force of the prior art clip.
-. .
-8- 2~7~77 These data show that the clips of the present inven~ion provide improved resistance to being dislodged from body tissue as compared wilh the prior known clip.
While the above description contains many specifics, these specifics should not be construed as limitations on the scope of the invention, but merely as exemplifications of preferred embodiments thereof. Those skilled in the art willenvision many other possible variations that are within the scope and spirit of the 10 invention as defined by the claims appended hereto.
Claims (16)
1. A hemostatic clip for application to body tissue, which comprises:
first and second legs, each leg having a tissue contacting surface and at least two side surfaces intersecting said tissue contacting surface and defining a width of said leg therebetween, said tissue contacting surface having at least one indentation disposed thereon across less than the entire width of the tissue contacting surface and intersecting one of said side surfaces.
first and second legs, each leg having a tissue contacting surface and at least two side surfaces intersecting said tissue contacting surface and defining a width of said leg therebetween, said tissue contacting surface having at least one indentation disposed thereon across less than the entire width of the tissue contacting surface and intersecting one of said side surfaces.
2. The hemostatic clip of claim 1, wherein the intersection of said indentation with said side surface defines an open area in said side surface to permit the flow of body fluid therethrough to body tissue.
3. The hemostatic clip of claim 1, wherein said clip comprises a plurality of said indentations arranged in first and second rows, said indentations intersecting with a respective one or the other of said side surfaces.
4. The hemostatic clip of claim 3, wherein the indentations of one of said first and second rows are in staggered arrangement with respect to the indentations of the other of said first and second rows.
5. The hemostatic clip of claim 1, wherein said indentation includes at least one wall having an edge formed by the intersection of said wall with said tissue contacting surface, and at least one edge formed by the intersection of said wall with a respective one of said side walls.
6. The hemostatic clip of claim 5, wherein said wall is of generally arcuate configuration.
7. The hemostatic clip of claim 5, wherein said wall is of generally semicircular configuration.
8. The hemostatic clip of claim 5, wherein said wall is substantially perpendicular to the tissue contacting surface.
9. The hemostatic clip of claim 3, wherein said first and second legs each include a distal end portion, said distal portions of said first and second legs extending in generally parallel orientation to each other, and said legs each further including a proximal portion, said proximal portions being joined at an angle so as to define an apex and a bail portion of the hemostatic clip.
10. The hemostatic clip of claim 9, wherein said bail portion is generally V-shaped.
11. The hemostatic clip of claim 9, wherein said bail portion is generally U-shaped.
12. The hemostatic clip of claim 9, further including at least one notch extending lengthwise on at least one of said proximal portions.
13. The hemostatic clip of claim 12, wherein said notch has a V-shaped cross section.
14. The hemostatic clip of claim 9, wherein the indentations are located on the tissue contacting surfaces of the distal end portions of the first and second legs.
15. The hemostatic clip of claim 10, wherein the angle between the proximal portion is from about 129° to about 131°.
16. The hemostatic clip of claim 1, wherein said clip is fabricated from a material selected from the group consisting of stainless steel, tantalum,titanium, and plastic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/777,083 | 1991-10-16 | ||
| US07/777,083 US5201746A (en) | 1991-10-16 | 1991-10-16 | Surgical hemostatic clip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2079277A1 true CA2079277A1 (en) | 1993-04-17 |
Family
ID=25109246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002079277A Abandoned CA2079277A1 (en) | 1991-10-16 | 1992-09-28 | Surgical lighting clip |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5201746A (en) |
| CA (1) | CA2079277A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591201A (en) * | 1994-10-26 | 1997-01-07 | Lam; Anthony H. | Method and apparatus for haemostatic compression |
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| US5501693A (en) * | 1994-07-06 | 1996-03-26 | United States Surgical Corporation | Surgical hemostatic clip |
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| US700478A (en) * | 1902-01-17 | 1902-05-20 | Horace Greeley Carpenter | Sleeve-holder. |
| US3006344A (en) * | 1959-02-24 | 1961-10-31 | Isaac J Vogelfanger | Surgical ligator and cutter |
| US3363628A (en) * | 1964-09-28 | 1968-01-16 | Peter B Samuels | Hemostatic clip |
| US3867944A (en) * | 1972-10-27 | 1975-02-25 | Wood Ernest C | Hemostatic clip and applicator therefor |
| US4412539A (en) * | 1976-10-08 | 1983-11-01 | United States Surgical Corporation | Repeating hemostatic clip applying instruments and multi-clip cartridges therefor |
| US4188953A (en) * | 1977-08-05 | 1980-02-19 | Charles H. Klieman, M.D. | Hemostatic clip |
| US4278091A (en) * | 1980-02-01 | 1981-07-14 | Howmedica, Inc. | Soft tissue retainer for use with bone implants, especially bone staples |
| CA1170536A (en) * | 1980-08-25 | 1984-07-10 | United States Surgical Corporation | Surgical staples |
| AU542936B2 (en) * | 1980-10-17 | 1985-03-28 | United States Surgical Corporation | Self centering staple |
| US4449530A (en) * | 1981-07-15 | 1984-05-22 | Ethicon, Inc. | Hemostatic clips and method of manufacture |
| US4509518A (en) * | 1982-02-17 | 1985-04-09 | United States Surgical Corporation | Apparatus for applying surgical clips |
| US4519392A (en) * | 1982-10-12 | 1985-05-28 | Lingua Robert W | Hemostasing muscle clips for needleless surgery |
| US4570623A (en) * | 1983-06-02 | 1986-02-18 | Pfizer Hospital Products Group Inc. | Arched bridge staple |
| US4531522A (en) * | 1983-06-20 | 1985-07-30 | Ethicon, Inc. | Two-piece tissue fastener with locking top and method for applying same |
| US4702247A (en) * | 1985-08-20 | 1987-10-27 | American Hospital Supply Corporation | Ligating clip |
| US4844066A (en) * | 1987-04-06 | 1989-07-04 | Richard-Allan Medical Industries, Inc. | Surgical clip |
| US4799481A (en) * | 1987-04-08 | 1989-01-24 | Ethicon, Inc. | Surgical hemostatic clips |
| US4979950A (en) * | 1987-04-08 | 1990-12-25 | Ethicon, Inc. | Surgical hemostatic clips |
| US4971198A (en) * | 1988-04-18 | 1990-11-20 | Edward Weck Incorporated | Hemostatic clip and cartridge assembly |
| US4976722A (en) * | 1989-05-22 | 1990-12-11 | Ethicon, Inc. | Surgical hemostatic clips |
-
1991
- 1991-10-16 US US07/777,083 patent/US5201746A/en not_active Expired - Lifetime
-
1992
- 1992-09-28 CA CA002079277A patent/CA2079277A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591201A (en) * | 1994-10-26 | 1997-01-07 | Lam; Anthony H. | Method and apparatus for haemostatic compression |
Also Published As
| Publication number | Publication date |
|---|---|
| US5201746A (en) | 1993-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 19990928 |