CN1444465A - Trocar with sheath, cannula body with handle, detachable end housing and flexible valve system trocar system and associated methods - Google Patents
Trocar with sheath, cannula body with handle, detachable end housing and flexible valve system trocar system and associated methods Download PDFInfo
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- CN1444465A CN1444465A CN 01813595 CN01813595A CN1444465A CN 1444465 A CN1444465 A CN 1444465A CN 01813595 CN01813595 CN 01813595 CN 01813595 A CN01813595 A CN 01813595A CN 1444465 A CN1444465 A CN 1444465A
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- Prior art keywords
- trocar
- main body
- casing main
- valve
- diameter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
- A61B17/3496—Protecting sleeves or inner probes; Retractable tips
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3474—Insufflating needles, e.g. Veress needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
- A61B2017/00429—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping with a roughened portion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
- A61B2017/00429—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping with a roughened portion
- A61B2017/00433—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping with a roughened portion knurled
Abstract
A trocar system and associated methods are provided. The trocar system preferably has a cannula having an elongate cannula body. The cannula body includes medial and distal portions thereof having a first diameter and a proximal portion thereof connected to the medial portion and having a second diameter. The second diameter is preferably larger or greater than the first diameter. A cannula body end housing is readily detachably connected to the proximal portion of the cannula body for housing at least one valve therein. First and second trocar valves are positioned within the cannula body end housing and each having an opening in a medial portion thereof. The first valve is preferably positioned proximal of the second valve. A pair of finger grips are each connected to and extending outwardly from the proximal portion of the cannula body for gripping the cannula with the fingers (F) of a hand (H) of a user (U). A trocar or other instrument is positioned within the cannula body.
Description
Technical field
The present invention relates to field of medical appliances, in particular, relate to trocar system and method.
Background technology
Trocar system has been developed for many years, is used for the various endoscopic applications at medical domain.These trocar system generally include sleeve pipe, and the trocar or occluder or other instruments relevant with endoscope extend by this sleeve pipe.The trocar can for the band sheath or not with sheath.The example of the trocar of band sheath can be called the United States Patent (USP) 4654030 of " trocar " in people's such as Moll name; People's such as Holmes name is called the United States Patent (USP) 4931042 of " having the trocar assembly that improves locking ", and the name of Lander is called the United States Patent (USP) 4902280 of " trocar ", and knows in the United States Patent (USP) 5030206 that is called " trocar " of Lander.Yet, need still to make that more to save cost, move up and transport upper volume littler, and also produce the trocar of other band sheaths of unfailing performance.
Knownly be to use one or more valve, it is positioned within the telescopic near-end of trocar system or is connected on the near-end.This example that has the trocar system of one or more valve in its sleeve pipe can be called in the United States Patent (USP) 5226891 of " seal protecting device " in people's such as Bushatz name; people's such as Hart name is called in the United States Patent (USP) 5308336 of " seal protection mechanism "; people's such as Hart name is called in the United States Patent (USP) 5385553 of " trocar that has the diaphragm seal that floats "; people's such as Hart name is called the United States Patent (USP) 5782812 of " being used for the black box near device "; people's such as Hart name is called the United States Patent (USP) 5443452 of " be used near device black box ", and people's such as Ritchart name is called in the United States Patent (USP) 5209737 of " diaphragm seal of lever " and knows.
Yet these devices often have the complicated mechanical valve, and it makes difficulty and expensive.So, be used for operation process, for example after the endoscope, the system that wherein has valve often abandons, if their not sterilizable words especially.Therefore, this expensive cost often imposes on insurance provider and uses its patient.
Telescopic other these valve that are used for trocar system do not have the complicated mechanical valve, but still very expensive or more be difficult to make.Because cost constantly raises in sanitary health career, insurance, consumer and government organs' concerted effort will also use the price of apparatus to reduce.And other valve of these that are used by doctor or healthcare givers in operation process is often flexible inadequately, and often damages.So, also exist the demand of the sleeve pipe of the replacement be used for trocar system and valve structure, more cheap trocar system demand, more flexiblely use the i.e. demand of the maneuverability used of doctor and the demand that still can be used for the trocar system of various endoscopic procedures by the healthcare givers to improve it.
Summary of the invention
Consider noted earlierly, the present invention preferably provides a kind of trocar system, and it has low relatively and parts this system of manufacturing, for example sleeve pipe, the trocar, cost that valve is relevant, and reduced the cost relevant thus with trocar system.The present invention also preferably provides a kind of trocar system, and it has improved in operation process doctor or healthcare givers's feel.The present invention preferably provides a kind of more flexible trocar system in addition, and it can be used in the various endoscopic procedures.The present invention more preferably provides a kind of sleeve pipe and the trocar, and they more satisfy ergonomics separately, and is easy to use.The present invention also preferably provides the improved method of using and operating trocar system in operation process.
In particular, provide a kind of trocar system, it comprises the sleeve pipe with slender casing main body, and this casing main body has the mid portion and the distal portions of first diameter, and is connected on the mid portion and is the proximal part of second diameter.Second diameter is preferably more than first diameter.Trocar system also preferably has the casing main body end cap, and this end cap is easy to be detachably connected on the proximal part of casing main body, is used for holding therein at least one valve; And being positioned at the first and second interior trocar valve of casing main body end cap, this valve has opening in the part respectively therebetween.First valve preferably is positioned near second valve.The trocar with elongate sheath bobbin main body is positioned to extend through casing main body end cap, first and second trocar valve and the casing main bodies.The trocar also has the handle on the trocar body of being connected to, and is used for catching and handle the trocar by user's hands.
First valve is for example preferably formed by elastomeric material, centers on this bulk deformation when the main body of the trocar is located wherein, with the periphery of sealing with the trocar body that closely contacts in the interior week of the first valve opening.First valve also has the distal surface of the proximal end face and the general plane of general plane, and elastomeric material comprises fibrous material, and it is impregnated with silicon materials, improving the intensity of valve, and improves the slip and the sealing of trocar body.
Telescopic end cap is preferably such that the user can take off end cap easily from sleeve pipe, and does not damage the sample that takes off in operation process or other minimum degree invasion procedures.First and second valve are positioned in the end cap, so that when extracting out, sample can not be subjected to damage or other pollutions that valve brings.When not needing to take out sample, first and second valve are preferably such that the user can keep intrasystem pressure, and also can pass through the slidably mobile trocar of sleeve pipe or other utensils.
The finger grips device is connected on the proximal part of casing main body and from this proximal part and stretches out, and is used for catching sleeve pipe by user's finger.This system also comprises the trocar with elongate sheath bobbin main body, is used to pass sleeve pipe.The trocar preferably also comprises the handle that is connected on the trocar body, is used for catching and handle the trocar by user's hands.
The finger grips device for example can provide by a pair of handle.This has the finger support webs to each handle in the handle.Each support webs be connected with this centering another roughly 180 the degree positions.This position and structure example are handled by the user and control cosily as advantageously allowing sleeve pipe.Because sleeve pipe is preferably formed by droppable plastics, support webs can molded or manufacturing in the process identical with forming casing main body easily.Handle is palpable, and has ergonomic configuration basically.
The trocar with elongate sheath bobbin main body also passes sleeve pipe.Elongated trocar body has the intermediate portion of sharp distal portions, first diameter and the proximal part of second diameter.Second diameter is preferably more than first diameter.The trocar also has the handle on the proximal part of the trocar body of being connected to, and is used for catching and handle the trocar by user's hands; And be installed to sheath on the mid portion of trocar body slidably; this sheath is biased on the extended position; so that the sharp distal end of the far-end mulched ground protective sleeve bobbin main body of sheath; be applied on it up to pressure, thus sheath to the proximal part slippage of trocar body till the retracted position.Sheath has the 3rd diameter, and it preferably is equal to or less than second diameter at least.
The present invention preferably also provides a kind of method of handling trocar system.This method preferably includes by user's finger and catches sleeve pipe, so that when catching by user's finger, point tight at least one support webs of contact and pass through casing main body positioning sleeve bobbin slidably, this support webs is connected on the casing main body also protruding from it.
Use the method for the trocar to preferably include by the casing main body insertion trocar, pressure on the response sheath distal portions, from the distal portions of the trocar sheath to the proximal part indentation trocar of the trocar, and by utilizing transitional region between trocar mid portion and the trocar proximal part to stop the indentation of sheath.
Description of drawings
Features more of the present invention, advantage and benefit have been described, when reference will be made to the accompanying drawings, other will become clear along with the carrying out of describing.Among the figure:
Fig. 1 is according to the perspective view around the intraepidermal trocar system of the patient's of being positioned at one deck of the present invention;
Fig. 2 is the side view according to trocar system of the present invention;
Fig. 3 be along the line 3-3 of Fig. 1 intercepting according to the partial sectional view with trocar system of elementary valve and secondary valve of the present invention;
Fig. 4 is the fragmentary, perspective view according to the elementary valve of trocar system of the present invention;
Fig. 5 is the profile according to the elementary valve of trocar system of the present invention along the line 5-5 of Fig. 4 intercepting;
Fig. 6 is the partial top view according to the occluder of the band sheath of trocar system of the present invention;
Fig. 7 is the vertical view of the occluder that takes off from the sheath according to the occluder of the band sheath of trocar system of the present invention;
Fig. 8 is the vertical view according to the sheath of the occluder of the band sheath of trocar system of the present invention;
Fig. 9 is the perspective view according to the secondary valve of trocar system of the present invention;
Figure 10 is the profile according to the secondary valve of trocar system of the present invention along the line 10-10 of Fig. 9 intercepting;
Figure 11 is the vertical view according to another embodiment of the elementary valve of trocar system of the present invention;
Figure 12 is the perspective view according to another embodiment of the elementary valve of trocar system of the present invention;
Figure 13 is the profile according to another embodiment of the elementary valve of trocar system of the present invention along the line 13-13 of Figure 11 intercepting;
Figure 14 is the partial side view according to the amplification of the trocar of the band sheath of trocar system of the present invention; And
Figure 15 is the profile according to the trocar of the band sheath of trocar system of the present invention along the line 15-15 of Figure 14 intercepting.
The specific embodiment
With reference to the accompanying drawing that the preferred embodiment of the present invention is shown the present invention is described comprehensively below.Yet this invention can be with multiple multi-form enforcement, and should not be regarded as and be confined in the embodiment described here.But, provide these embodiment so that the disclosure is thorough and complete, and pass on scope of the present invention to those skilled in the art all sidedly.Reference numeral identical in the whole text indicates components identical, and the note (if you are using) that band is cast aside is indicated the like among another embodiment.
Fig. 1 illustrates a kind of trocar system 20, and it preferably includes the sleeve pipe 30 with slender casing main body 31.Casing main body 31 comprises the distal portions 32 of first diameter and the proximal part 34 of the mid portion 33 and second diameter, and this proximal part is connected on the mid portion 33.As shown in the figure, second diameter is preferably more than first diameter.Trocar system 20 also has finger grips device 35, it is connected on the proximal part 34 of casing main body 31, and stretch out from this proximal part 34, the finger F that is used for the hands H by user U catches sleeve pipe 30, and trocar system 20 has the trocar 40, it has elongated trocar body 41, is used to pass sleeve pipe 30.The trocar 40 also has handle 50, and it is connected on the trocar body 41, to be used for catching and handle the trocar 40 by the hands H of user U.
As may the best among Fig. 1-3 illustrating, the finger grips device 35 of trocar system 20 for example can provide by the handle 36,37 on a pair of outer surface that is connected to the casing main body proximal part.This comprises the finger support webs in the handle each.This is connected finger each in the support webs 38,39, and another becomes the positions of 180 degree substantially with this centering, as shown in the figure.The mid portion 33 of casing main body 31 is connected on the proximal part 32 of casing main body, limit the location of near-end transitional region 25.This has distal circumference surface 28,29 in the support webs 38,39 each, and they are protruding from the proximal part 34 of casing main body 31, and approximately extends from the plane perpendicular to the transitional region 25 of casing main body 31.
And each palpable finger support webs preferably has the outer surface of roughening or band convex ridge, is used for during (see figure 2), reducing finger and skidding on finger support webs 38,39 in finger locating.This preferably is formed integrally as an independent element with casing main body 31 to each that point in the support webs 38,39.This comprises auxiliary fluid flow port 22 at least one that point in the support webs 38, the mid portion of this fluid flow port 22 extend throughs finger support webs 38, and to allow fluid, for example gas or liquid flow by it.Stride across mouthful 22 control valves for fluids 24 that extend slidably, for example shutoff valve (stop flow valve) or switch flow valve (on/off flow valve) are associated at least one auxiliary fluid flow port 22 of 38 in the finger support webs 38,39 with this, be used to control fluid (for example carbon dioxide) and flow through auxiliary fluid mouth 22, and arrive in the telescopic inner tubular part, as shown in the figure.
In addition, the mid portion 33 of casing main body 31 has a plurality of rib elements 27, and itself and casing main body 31 are integrally formed and stretch out from the outer surface of casing main body 31.As skilled in the art to understand, the rib element forms beam (fascia) screw thread, but mid portion also can be level and smooth.Ferrule openings part around distal portions 32 has, their approximate planes that is basically perpendicular to the distal portions far-end of casing main body 31 relatively tilt and are angled, and extend along crosscut first planar second plane.In fact, distal portions has the inclined skirt (shed) of far-end, forms the preceding curtain cover (tent) of peritoneum.The trocar body 41 of the trocar 40 has sharp distal portions 42 and the local at least sheath 47 that covers far-end 42.
The additional aspect according to the present invention, trocar body end cap 60 are easy to be detachably connected on the proximal part 34 of trocar body 31, are used for holding therein at least one valve.First and second trocar valve 62,66 or be positioned substantially in the trocar body end cap 60, or part is positioned in the trocar body end cap 60, as shown in the figure, and respectively therebetween part have opening 63,67.First valve 62 is positioned near second valve 66, and preferably integral body is positioned in the end cap 60, as shown in the figure.The trocar 40 has elongated trocar body 41, and it is the corresponding opening 63,67 and the casing main body 31 of extend through trocar body end cap 60, first and second trocar valve also.
First or elementary valve 62 preferably form by elastomeric material, when the main body of the trocar 40 is positioned at wherein, it is slidably around the bulk deformation of the trocar 40, with the periphery of the trocar body 41 in interior week of the opening 63 that seals tight contact first valve 62.First valve 62 has the distal surface 65 of the proximal end face 64 and the general plane of general plane.First or first embodiment of elementary valve in, elastomeric material preferably includes fibrous material, it floods with silicon materials, improving the intensity of valve 62, and improves the slip and the sealing (seeing Fig. 4-5) of the main body 41 of the trocar 40.In this embodiment, fibrous material can have the accumulation portion or the crimping (bead) of silicon or other similar materials, and they are around its periphery and/or opening 63 location.Second or additional embodiments in, first or elementary valve 62 ' preferably form by chloroprene rubber material, as skilled in the art to understand, for example be, nylon and/or Lycra material, as be used in (seeing Figure 11-13) in the purposes of diving dress or other types.Chloroprene rubber material preferably has the grain structure of sealing, and forms valve by cut.First valve 62,62 ' preferably has and stretches or elastic range, with when still keeping pneumoperitoneum, adapt to easily diameter for example about 4 millimeters to about 13 millimeters automatically reset, the trocar or other utensils.Second valve 66 preferably also has this scope, and individually can even have more scope, for example 0mm to 13 or 14mm.So by the combination of first and second valve 62,66, trocar system advantageously can receive the utensil of different-diameter, and need not change sleeve pipe or valve system.Be significantly, first valve 62,62 also preferably is fixedly attached on the end cap, for example, preferably by its periphery between lip, the edge of end cap 60 parts or the projection that extends internally, with guiding, sealing and other specifications of improving the elementary valve 62 in the trocar system.
According to a further aspect of the present invention, the trocar 40 of trocar system 20 or minute hand or occluder (if you are using) preferably have elongated trocar body 41, are used for extend through sleeve pipe 30.Elongated trocar body 41 has the mid portion 43 of sharp distal portions 42, first diameter and the proximal part 44 of second diameter.Second diameter is preferably more than first diameter.The trocar 40 also has the handle 50 on the proximal part 44 of trocar body of being connected to 41; be used for firmly grasping and handle the trocar 40 by the hands H of user U; and has a sheath 45; this sheath 45 is installed on the mid portion 43 of trocar body 41 slidably; and be biased on the extended position; so that the sharp far-end 42 of the far-end of sheath 45 46 mulched ground protective sleeve bobbin main bodys 41, up to pressure be applied on it in case sheath 45 along retracted orientation slidably till the proximal part 44 of trocar body 41 moves.Sheath 45 preferably has the 3rd diameter, and it is equal to or less than second diameter at least, as shown in the figure.
Sheath 45 has tubular sheath main body 47, it centers on the mid portion 43 and the biasing device of trocar body 41 basically, this biasing device is for example provided by spring 48 and other biased elements, and is positioned between the inner surface of the outer surface of mid portion 43 of trocar body 41 and tubular sheath main body 47.Trocar body 41 preferably includes the trocar body transitional region, and it has outer surface, and this outer surface extends outwardly into proximal part 44 from middle part 43, and defines a sheath backstop 49 when sheath 45 is biased into retracted position.Sheath backstop 49 is preferably the first sheath backstop, and also can or alternatively be connected on the trocar body 41 such as the second sheath backstop 46 that provides by bar or pin element, and cooperate with sheath body 47, for example pass the slit that wherein forms, thereby when sheath body 47 moves to retracted position, provide a replacement or additional backstop for it.
The sharp distal portions 42 of the trocar 40 for example preferably has the tip of taper, preferably has the 4th diameter.The 4th diameter is preferably more than first diameter of the mid portion 43 of trocar body 41.Sheath body 47 also preferably has the far-end of inclination, and it is corresponding to the shape and the position of sharp distal portions, and extends beyond the far-end of the sharp distal end part 42 of trocar body 41.This sheath body for example can have ledge as shown in the figure, or ledge with other shapes, for example nosed or other tips are in contact with it and make the sheath body withdrawal, and can apparent damage its closely target, tissue or other article of contact.
Shown in Fig. 1-13, the present invention also comprises the method for handling trocar system 20.This method comprises by the finger F of the hands H of user U catches sleeve pipe 30, so that finger F closely contacts at least one support webs 38,39 and when catching casing main body 31 by the finger F of the hands H of user U by casing main body 31 positioning sleeve bobbins 40, this support webs is connected on the main body 31 of sleeve pipe 30 and is protruding from this main body 31.
The present invention also comprises the method for using trocar system 20, has following steps: sleeve pipe end cap 60 is pulled down from the proximal part of casing main body, and taken off tissue or other samples from casing main body 30, as will be understood by the skilled person in the art.This method comprises that also end cap 60 has at least one location valve 62,66 wherein.Sleeve pipe end cap 60 and casing main body 31 have the general toroidal shape respectively, and casing main body 31 has the mid portion 33 of first diameter and be connected on the mid portion 33 and have the proximal part 34 of second diameter, and this second diameter is preferably more than first diameter.This method also comprises demounting procedure, this step is included on the previously selected direction of rotation, for example be rotated counterclockwise sleeve pipe end cap 60 and at least one valve 62,66, this valve comprises first and second valve 62,66, and they are connected respectively on the sleeve pipe end cap 60 (sees Fig. 3-5 and 9-13).
In addition, the present invention can comprise the method for using the trocar 40.This method preferably has following steps, promptly, the trocar is inserted by the main body 31 of sleeve pipe 30, the pressure of response on the distal portions 46 of sheath 45, from the distal portions 42 of the trocar 40 sheath 45 to the proximal part 44 withdrawal trocars 40 of the trocar 40, and by utilize between trocar mid portion and the trocar proximal part transitional region or by utilizing other stop elements to stop the withdrawal of sheaths 45.This method also comprises the trocar 40, it has the handle 50 that is connected on its proximal part 44, handle 50 has location thumb carriage 53 on its outer surface, and inserting step is preferably incorporated in when passing casing main body 31, user's thumb is pressed on the thumb carriage 53 of handle 50.
In drawing and description, the typical preferred embodiment of the present invention is disclosed, though and adopted specific term, the only meaning use to describe of this term, rather than the purpose that is used to limit.The present invention is specifically quite at length described with reference to the embodiment shown in these, yet, be apparent that in and of the present invention marrow and scope that appended claims limited described as the description of front, can make various improvement and variation.
Claims (52)
1. trocar system comprises:
Sleeve pipe with slender casing main body, casing main body comprise the centre and the distal portions of first diameter and are connected to mid portion and have the proximal part of second diameter that second diameter is greater than first diameter;
The finger grips device, this device is connected on the proximal part of casing main body, and stretches out from this proximal part, is used for catching sleeve pipe with the finger of user's hands; And
The trocar, it has elongated trocar body, is used for the extend through sleeve pipe, and this trocar also has the handle on the trocar body of being connected to, and is used for catching and handle the trocar by user's hands.
2. trocar system as claimed in claim 1, it is characterized in that, described finger grips device comprises at least one pair of handle, they are connected on the outer surface of casing main body proximal part, this is to each comprises the finger support webs in the handle, limit the pair of finger support webs thus, and this is connected finger each in the support webs, and another roughly becomes the positions of 180 degree with this centering.
3. trocar system as claimed in claim 1, it is characterized in that, the mid portion of casing main body is connected on the proximal part of casing main body in the location that limits the near-end transitional region, this has the distal circumference surface in the support webs each, its proximal part from casing main body stretches out, and roughly extends from the plane of the transitional region that is basically perpendicular to casing main body.
4. trocar system as claimed in claim 2 is characterized in that, each finger support webs has the outer surface of roughening, is used for the slip that reduces to point when finger locating is on the finger support section.
5. trocar system as claimed in claim 2 is characterized in that, this is formed integrally as independent one to each and the casing main body of finger in the support webs.
6. trocar system as claimed in claim 2 is characterized in that, this comprises auxiliary fluid flow port at least one that point in the support webs, the mid portion of its extend through finger support webs.
7. trocar system as claimed in claim 6 also comprises flow control valve, and it is associated to the auxiliary fluid mouth of pointing at least one in the support webs with this, is used to control fluid and flows through the auxiliary fluid mouth.
8. trocar system as claimed in claim 1 is characterized in that, the mid portion of casing main body comprises a plurality of rib elements, and this rib element and casing main body outer surface are integrally formed and stretch out from this outer surface.
9. trocar system as claimed in claim 1, it is characterized in that, distal portions has the ferrule openings part of periphery, and first plane of the extension of its approximate and the far-end that is basically perpendicular to the casing main body distal portions is angled, and extends along crosscut first planar second plane.
10. trocar system as claimed in claim 9 is characterized in that, the trocar body of the described trocar has sharp far-end and the local at least sheath that covers far-end.
11. a sleeve pipe comprises:
Elongated casing main body, this casing main body comprise the mid portion and the distal portions of first diameter, and are connected on the mid portion and have the proximal part of second diameter, and second diameter is greater than first diameter; And
The finger grips device, it is connected on the proximal part of casing main body, and stretches out from this proximal part, is used for user's finger grips sleeve pipe.
12. sleeve pipe as claimed in claim 11, it is characterized in that, described finger grips device comprises a pair of handle, they are connected on the outer surface of casing main body proximal part, this comprises the finger support webs in the handle each, define the pair of finger support webs thus, and this is connected finger each in the support webs, and another becomes the positions of 180 degree substantially with this centering.
13. sleeve pipe as claimed in claim 12, it is characterized in that, the mid portion of casing main body is connected on the proximal part of casing main body in the location that limits the near-end transitional region, this has the distal circumference surface in the support webs each, this surface stretches out from the proximal part of casing main body, and extends from the plane that is basically perpendicular to the casing main body transitional region approx.
14. sleeve pipe as claimed in claim 13 is characterized in that, each finger support webs has the roughening outer surface, is used for reducing finger when finger locating is on the finger support webs and skids.
15. sleeve pipe as claimed in claim 12 is characterized in that, this is formed integrally as one to each and the casing main body of finger in the support webs.
16. sleeve pipe as claimed in claim 15 is characterized in that, this comprises auxiliary fluid flow port at least one that point in the support webs, the mid portion of this fluid flow port extend through finger support webs.
17. sleeve pipe as claimed in claim 16 also comprises flow control valve, it is associated to the auxiliary fluid mouth of pointing at least one in the support webs with this, is used to control fluid and flows through the auxiliary fluid mouth.
18. sleeve pipe as claimed in claim 17 is characterized in that, the mid portion of casing main body comprises a plurality of rib elements, and this rib element and casing main body outer surface are integrally formed and stretch out from this outer surface.
19. sleeve pipe as claimed in claim 18, it is characterized in that, distal portions has the ferrule openings part of periphery, and first plane of the extension of its approximate and the far-end that is basically perpendicular to the casing main body distal portions is angled, and extends along crosscut first planar second plane.
20. a sleeve pipe comprises:
Elongated casing main body, this casing main body comprise the mid portion and the distal portions of first diameter, and are connected on the mid portion and have the proximal part of second diameter, and second diameter is greater than first diameter; And
At least one pair of handle, they are connected on the proximal part of casing main body, and stretch out from proximal part, so that catch sleeve pipe by user's finger.
21. a trocar system comprises:
Sleeve pipe with slender casing main body, casing main body comprise the centre and the distal portions of first diameter and are connected to mid portion and have the proximal part of second diameter that second diameter is greater than first diameter;
The casing main body end cap, it is easy to be detachably connected on the proximal part of casing main body, is used for holding therein at least one valve;
First and second trocar valve, they are positioned in the casing main body end cap, and partly have opening therebetween separately, and first valve is positioned near second valve; And
The trocar, it has elongated trocar body, this trocar body extend through casing main body end cap, first and second trocar valve and the casing main bodies, this trocar also has the handle on the trocar body of being connected to, and is used for catching and handle the trocar by user's hands.
22. trocar system as claimed in claim 21, it is characterized in that, first valve is formed by elastomeric material, and first valve is around the trocar body distortion, with the periphery of sealing with the trocar body that closely contacts in the interior week of the first valve opening when trocar body is positioned wherein.
23. trocar system as claimed in claim 22 is characterized in that, first valve has planar substantially first surface and planar substantially distal surface, and the periphery of first valve is fixedly attached on the end cap.
24. trocar system as claimed in claim 23 is characterized in that elastomeric material comprises fibrous material, it floods with silicon materials, improving the intensity of valve, and improves the slip and the sealing of trocar body.
25. trocar system as claimed in claim 23 is characterized in that, second valve has annular flange portion, is used to improve the location of second valve in end cap; Annular sidewall, it is connected on the annular lip, and in being positioned at end cap the time to remote extension; And at least one pair of valve flap, they are connected on the sidewall and from sidewall and extend internally, and this has at least one slit to the valve flap along its public edge, and trocar body is passed this slit.
26. trocar system as claimed in claim 25 is characterized in that, the sidewall of second valve has at least one connection rib element thereon, and second valve is formed by silicon materials, and dipping is lubricated to be used for it with oil plant.
27. trocar system as claimed in claim 21 is characterized in that end cap is roughly annular, has first opening at near-end, and has second opening at far-end, first valve is near first opening location, and second valve is near second opening location.
28. trocar system as claimed in claim 27 is characterized in that, end cap outer surface roughening with easily when the proximal part of casing main body is pulled down end cap, improves its hand grip and rotation by the user.
29. trocar system as claimed in claim 27, it is characterized in that, the proximal part of casing main body has at least one end cap mating part that is associated with it, and end cap also has the casing main body mating part that at least one is associated with it, thereby end cap is fixed on the casing main body in firm position with mating, and corresponding mating part is freed in the motion of the end cap that carried out of user's hands thus, be used for when first and second valve are positioned at wherein, pulling down end cap easily by the user, and make sample from casing main body, to take out easily, and can not damaged by first and second valve.
30. a cannula system comprises:
Sleeve pipe with slender casing main body, this casing main body comprise the centre and the distal portions of first diameter and are connected to mid portion and have the proximal part of second diameter that second diameter is greater than first diameter; And
The casing main body end cap, it is detachably connected on the proximal part of casing main body easily, is used for holding therein at least one valve.
31. cannula system as claimed in claim 30 also comprises first and second trocar valve, they are positioned in the casing main body end cap, and partly have opening therebetween separately, and first valve is near second valve location.
32. cannula system as claimed in claim 31, it is characterized in that first valve is formed by elastomeric material, when trocar body is positioned at wherein, this material is around the trocar body distortion, with the periphery of sealing with the trocar body that closely contacts in the interior week of the first valve opening.
33. cannula system as claimed in claim 32 is characterized in that, first valve has the distal surface of the proximal end face and the general plane of general plane, and the periphery of first valve is fixedly attached on the end cap.
34. cannula system as claimed in claim 32 is characterized in that elastomeric material comprises fibrous material, this fibrous material dipping is with silicon materials, improving valve intensity, and improves the slip and the sealing of trocar body.
35. cannula system as claimed in claim 33 is characterized in that, second valve has annular edge of part, and it is used to improve the location of second valve in end cap; Annular sidewall, it is connected on the annular lip, and in being positioned at end cap the time to remote extension; And at least one pair of valve flap, it is connected on the sidewall and from sidewall and extends internally, and this has at least one slit to the valve flap along its public periphery edge, and trocar body can be passed this slit easily.
36. cannula system as claimed in claim 35 is characterized in that, the sidewall of second valve has at least one and connects thereon rib element, and second valve forms by silicon materials, and dipping is lubricated to be used for it with oil plant.
37. cannula system as claimed in claim 31 is characterized in that, end cap is annular substantially, has first opening at near-end, and has second opening at far-end, and first valve is positioned near first opening, and second valve is positioned near second opening.
38. cannula system as claimed in claim 30 is characterized in that, end cap outer surface roughening, with when the casing main body proximal part is pulled down end cap easily, improve its by user's hands promptly and rotation.
39. cannula system as claimed in claim 30, it is characterized in that, the proximal part of casing main body has at least one end cap mating part that is associated with it, and end cap also has the casing main body mating part that at least one is associated with it, thereby end cap is fixed on the casing main body in firm position with mating, and corresponding mating part is freed in the motion of the end cap that carried out of user's hands thus, be used for pulling down end cap easily by the user, and make sample from casing main body, to take out easily, and can not damaged by first and second valve.
40. a trocar system comprises:
Sleeve pipe with slender casing main body, casing main body comprise the centre and the distal portions of first diameter and are connected to mid portion and have the proximal part of second diameter that second diameter is greater than first diameter;
The trocar, it has the telescopic elongate sheath bobbin of the extend through of being used for main body, this elongate sheath bobbin main body has the mid portion of sharp distal portions, first diameter and the proximal part of second diameter, second diameter is greater than first diameter, the trocar also has the handle that is connected on the trocar body proximal part, is used for by user's hand grip and handles the trocar; And sheath; this sheath slidably is installed on the mid portion of trocar body; and be biased in extended position; so that the sharp far-end of sheath far-end mulched ground protective sleeve bobbin main body; be applied to up to pressure and make the proximal part slip locations of sheath on it along retracted orientation towards trocar body; sheath has the 3rd diameter, and the 3rd diameter is equal to or less than second diameter at least.
41. trocar system as claimed in claim 40 is characterized in that, sheath has the tubular sheath main body, and it centers on the mid portion of trocar body substantially; Also have biasing device, this biasing device is positioned between the inner surface of the outer surface of trocar body mid portion and tubular sheath main body.
42. trocar system as claimed in claim 41, it is characterized in that, trocar body comprises the trocar body transitional region, and transitional region has the outer surface that partly extends outwardly into proximal part from the centre, and this outer surface defines a sheath backstop when sheath is biased in retracted position.
43. trocar system as claimed in claim 42, it is characterized in that, sheath backstop comprises the first sheath backstop, and the second sheath backstop is connected on the trocar body and with sheath body and cooperates, being that sheath body provides backstop replacement or auxiliary when retracted position moves in sheath body.
44. trocar system as claimed in claim 43 is characterized in that, sharp distal portions has the 4th diameter, and the 4th diameter is greater than first diameter of the mid portion of trocar body.
45. trocar system as claimed in claim 44 is characterized in that sheath body has far-end, this remote extension surpasses the far-end of trocar body sharp distal end part.
46. a trocar comprises:
Elongated trocar body is used for the extend through sleeve pipe, and elongate sheath bobbin main body has the mid portion of sharp distal portions, first diameter and the proximal part of second diameter, and second diameter is greater than first diameter;
Be connected to the handle on the proximal part of trocar body, be used for by user's hand grip and handle the trocar; And
Sheath; this sheath is installed on the mid portion of trocar body slidably and is biased into extended position; so that the sharp distal end of the far-end mulched ground protective sleeve bobbin main body of sheath; be applied on it up to pressure and make sheath till the proximal part slippage of trocar body is in the retracted position; sheath has the 3rd diameter, and the 3rd diameter is equal to or less than second diameter at least.
47. the trocar as claimed in claim 46, it is characterized in that sheath has piped sheath body, it centers on the mid portion of trocar body basically, also have biasing device, this device is positioned between the outer surface and tubular sheath body inner surface of trocar body mid portion.
48. the trocar as claimed in claim 47, it is characterized in that, trocar body comprises the trocar body transitional region, and transitional region has the outer surface that partly extends outwardly into proximal part from the centre, and this outer surface defines a sheath backstop when sheath is biased in retracted position.
49. the trocar as claimed in claim 48, it is characterized in that, sheath backstop comprises the first sheath backstop, and the second sheath backstop is connected on the sheath body and with sheath body and cooperates, being that sheath body provides backstop replacement or auxiliary when retracted position moves in sheath body.
50. the trocar as claimed in claim 49 is characterized in that, sharp distal portions has the 4th diameter, and the 4th diameter is greater than first diameter of the mid portion of trocar body.
51. the trocar as claimed in claim 50 is characterized in that sheath body has far-end, this remote extension surpasses the far-end of trocar body sharp distal end part.
52. a method of handling trocar system, this method may further comprise the steps:
By user's finger grips sleeve pipe, so as finger closely contact at least one be connected on the casing main body and on the outward extending support webs of this main body; And
In by user's finger grips casing main body, by casing main body positioning sleeve bobbin slidably.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58069300A | 2000-05-30 | 2000-05-30 | |
| US58061500A | 2000-05-30 | 2000-05-30 | |
| US09/580,616 US6569119B1 (en) | 2000-01-26 | 2000-05-30 | Trocar system having cannula with finger grips |
| US09/580,616 | 2000-05-30 | ||
| US09/580,615 | 2000-05-30 | ||
| US09/580,693 | 2000-05-30 | ||
| US09/580,721 US7153319B1 (en) | 2000-01-26 | 2000-05-30 | Trocar system having shielded trocar |
| US09/580,721 | 2000-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1444465A true CN1444465A (en) | 2003-09-24 |
Family
ID=27504945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01813595 Pending CN1444465A (en) | 2000-05-30 | 2001-05-03 | Trocar with sheath, cannula body with handle, detachable end housing and flexible valve system trocar system and associated methods |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1284665A2 (en) |
| JP (1) | JP2004509659A (en) |
| CN (1) | CN1444465A (en) |
| AU (1) | AU2001262979A1 (en) |
| MX (1) | MXPA02011809A (en) |
| WO (1) | WO2001091653A2 (en) |
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| CN101351236B (en) * | 2005-11-15 | 2013-05-29 | 约翰霍普金斯大学 | An active cannula for bio-sensing and surgical intervention |
| CN103505250A (en) * | 2012-06-27 | 2014-01-15 | 迈克尔·J·瓦扬古 | Safety shield for a needle assembly |
| CN104799911A (en) * | 2014-01-29 | 2015-07-29 | 伊西康内外科公司 | Puncture apparatus |
| CN104887171A (en) * | 2006-05-18 | 2015-09-09 | 智能医疗系统有限公司 | Flexible endoscope system and functionality |
| CN105105797A (en) * | 2015-09-28 | 2015-12-02 | 成都漫程科技有限公司 | Puncture biopsy guide device |
| CN106572847A (en) * | 2014-08-06 | 2017-04-19 | 波士顿科学医学有限公司 | Reusable delivery devices |
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| CN109984822A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109984819A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of assembly method of piercing element and casing |
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| US8715219B2 (en) | 2008-10-10 | 2014-05-06 | Surgiquest, Inc. | System and method for improved gas recirculation in surgical trocars with pneumatic sealing |
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| US20090131967A1 (en) * | 2007-11-16 | 2009-05-21 | Hollis Jeffrey D | Surgical trocar |
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- 2001-05-03 MX MXPA02011809A patent/MXPA02011809A/en unknown
- 2001-05-03 EP EP01937222A patent/EP1284665A2/en not_active Ceased
- 2001-05-03 WO PCT/US2001/014476 patent/WO2001091653A2/en active Application Filing
- 2001-05-03 AU AU2001262979A patent/AU2001262979A1/en not_active Abandoned
- 2001-05-03 CN CN 01813595 patent/CN1444465A/en active Pending
- 2001-05-03 JP JP2001587671A patent/JP2004509659A/en active Pending
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| CN101528113B (en) * | 2006-08-30 | 2013-02-20 | 威神斯扣普技术有限公司 | Portable imaging system employing a miniature endoscope |
| CN103505250A (en) * | 2012-06-27 | 2014-01-15 | 迈克尔·J·瓦扬古 | Safety shield for a needle assembly |
| CN104799911A (en) * | 2014-01-29 | 2015-07-29 | 伊西康内外科公司 | Puncture apparatus |
| CN106572847A (en) * | 2014-08-06 | 2017-04-19 | 波士顿科学医学有限公司 | Reusable delivery devices |
| US10492829B2 (en) | 2014-08-06 | 2019-12-03 | Boston Scientific Scimed, Inc. | Reusable delivery devices |
| CN105105797A (en) * | 2015-09-28 | 2015-12-02 | 成都漫程科技有限公司 | Puncture biopsy guide device |
| CN109984820A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109984822A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
| CN109984819A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of assembly method of piercing element and casing |
| CN109984820B (en) * | 2017-12-31 | 2021-08-06 | 江苏风和医疗器材股份有限公司 | Coreless puncture outfit |
| CN109984819B (en) * | 2017-12-31 | 2021-08-06 | 江苏风和医疗器材股份有限公司 | Method for assembling puncture element and sleeve |
| CN109984822B (en) * | 2017-12-31 | 2022-03-18 | 江苏风和医疗器材股份有限公司 | Coreless puncture outfit |
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA02011809A (en) | 2004-05-17 |
| WO2001091653A2 (en) | 2001-12-06 |
| EP1284665A2 (en) | 2003-02-26 |
| JP2004509659A (en) | 2004-04-02 |
| WO2001091653A3 (en) | 2002-05-16 |
| AU2001262979A1 (en) | 2001-12-11 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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