US20050261720A1 - Surgical access device - Google Patents

Surgical access device Download PDF

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Publication number
US20050261720A1
US20050261720A1 US11/188,882 US18888205A US2005261720A1 US 20050261720 A1 US20050261720 A1 US 20050261720A1 US 18888205 A US18888205 A US 18888205A US 2005261720 A1 US2005261720 A1 US 2005261720A1
Authority
US
United States
Prior art keywords
device
sleeve
ring
incision
proximal
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
Application number
US11/188,882
Inventor
Martin Caldwell
Christy Cummins
Mike Muntner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaya Ltd
Original Assignee
Gaya Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to IES990220 priority Critical
Priority to IES990220 priority patent/IES990220A2/en
Priority to PCT/IE2000/000033 priority patent/WO2000054676A1/en
Priority to US09/936,841 priority patent/US6945932B1/en
Application filed by Gaya Ltd filed Critical Gaya Ltd
Priority to US11/188,882 priority patent/US20050261720A1/en
Publication of US20050261720A1 publication Critical patent/US20050261720A1/en
Application status is Abandoned legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • A61B17/3423Access ports, e.g. toroid shape introducers for instruments or hands
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0293Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • A61B17/3431Cannulas being collapsible, e.g. made of thin flexible material

Abstract

Surgical device (1) is used fir in minimally invasive surgery using an inflated body cavity (2) accessible to a surgeon through an access port defined by a sleeve (4) passing through an incision in a patient's abdominal wall (3). The device is held in position by a distal ring (5) and a proximal ring (6). The device (1) is sealed by cuff valve (8), self sealing valve (18), spring valve (28) or snap open/snap shut valve (38).

Description

  • This application is a continuation of application Ser. No. 09/936,841, filed Mar. 1, 2002, which is a national stage of application No. PCT/IE00/00033, filed Mar. 20, 2000.
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a surgical device for use in minimally invasive surgery of the type using patient pneumoperitoneum and an access port.
  • 2. Description of the Related Art
  • Minimally invasive surgery of this type is carried out having introduced gas into a patient's body cavity through an incision and sealed the incision with an access port. The access port enables laproscopic and hand or instrument assisted surgery to be performed.
  • A sleeve forming such a port is shown in WO-A-95/07056 entitled “Apparatus for use in surgery”. The access port sleeve shown is used to create a controlled pressurized environment within the sleeve while allowing a surgeon's arm to pass through the sleeve. During surgery, gas is pumped into the patient's body cavity where the surgery is to be performed and the sleeve prevents gas escaping while allowing the surgeon to operate using minimally invasive surgery techniques. The application shows a sleeve having a flange at a distal end provided with adhesive for adhering the device to a patient's body or alternatively a mounting ring to surround the incision in a patient's body. While providing a suitable apparatus for performing such surgery the device described suffers from the principle disadvantage that in use, the sleeve protrudes upwardly from the patient and may interfere with the activities of the surgery team. Additionally, the sleeve must be sealed against the surgeon's upper forearm by clamping the device to the arm sufficiently tightly to avoid gas leak around the area of the seal. This presents the surgeon with a problem both in sealing the sleeve and in subsequent mobility.
  • A further problem associated with the use of sleeves of the kind described is that a phenomenon known as “tenting” may occur. “Tenting” means that when the sleeve is adhered to the patient's skin or to a surgical drape and gas is induced into the patient's abdominal cavity, there is a tendency for the sleeve to fill with gas and to pull away from the patient.
  • U.S. Pat. No. 5,514,133 discloses an endoscopic surgical apparatus for enabling a surgeon to access directly the surgical site during an endoscopic procedure. This apparatus includes an opening extending longitudinally through the apparatus and prior art is configured and dimensioned to receive a hand therethrough. A first plate engages against the outer surface of the abdominal wall. A second plate is spaced from the first plate and is movable between a first position and a second position wherein the second plate is in close cooperative alignment with the inner surface of the abdominal wall. An adjustment member is mounted to the second plate and actuates movement of the second plate between its first position and its second position. A first sealing member inhibits the flow of gas through said opening and is formed by a pair of overlapping seals. A flexible sleeve extends between the first and second plates and adjusts in length to accommodate various thicknesses of the abdominal wall. The sleeve also creates an access port for the passage of objects through the abdominal wall.
  • SUMMARY OF THE INVENTION
  • A surgical device for use in minimally invasive surgery of the type using an inflated body cavity accessible to a surgeon through an access port, defined by the device, surrounding an incision in a patient's body, the device having: body cavity engagement means for insertion into the incision to locate the device in position; fixing means for attaching the device to a patients skin, the fixing means including a proximal ring; a sleeve connectable between the body cavity engagement means and the fixing means wherein the sleeve is adjustable by the positioning of the proximal ring so that the positioning of the proximal ring retracts the sleeve to define an access port and create a seal between the incision and sleeve; and sealing means, at least one of mounted on the sleeve and operating on the sleeve, to prevent substantial leakage of gas from the body cavity on inflation when in an inoperative position and formed to mould about a substantial portion of a surgeon's hand or surgical instrument on insertion in an operating position. Preferably, the body cavity engagement means is provided by a distal ring formed for insertion into the incision.
  • In one arrangement, the distal ring has an associated self-sealing valve. The fixing means (proximal ring) incorporates adjustment means for modifying the length of the sleeve. This ensures that the fixing means, distal ring and valves are brought into close contact with the abdominal wall ensuring a good seal is maintained and that the device is firmly mounted in position.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a front view of a surgical device in accordance with the invention;
  • FIG. 2 is a section view in the direction of the arrows A-A of the surgical device of FIG. 1;
  • FIG. 3 is a view of the self sealing valve forming part of a surgical device in accordance with the invention in an inoperative position;
  • FIG. 4 is a view of portion of the valve shown in FIG. 3 in an operating position;
  • FIG. 5 is a view of a another alternative self sealing valve forming part of a surgical device in accordance with the invention in an inoperative position;
  • FIG. 6 is a view of portion of the valve shown in FIG. 5 in an operating position; and
  • FIG. 7 is a front view of another embodiment of the surgical device of the present invention with an external proximal valve instead of an internal distal valve.
  • DETAILED DESCRIPTION OF THE INVENTION
  • Referring to the drawings, and initially to FIGS. 1-2 there is illustrated a surgical device according to the invention, indicated generally by the reference numeral 1. The surgical device 1 is formed for use in minimally invasive surgery of the type using an inflated body cavity indicated generally by the reference numeral 2. The cavity 2 is accessible to a surgeon through an access port, defined by a sleeve 4, passing through an incision in a patient's abdominal wall 3.
  • In more detail, the device 1 has a body cavity engagement means provided by a distal ring 5 for insertion into the incision to locate the device 1 in position. The distal ring 5 prevents the device from becoming detached from the body inadvertently and has an associated sealing means in the form of a self-sealing valve 18 for sealing the sleeve 4 when not in use. The device 1 is held in position on the patient's skin outside the body by a fixing means 10 provided in this case by a proximal ring 6. The distal ring 5 and proximal ring 6 ensure that the device 1 is securely fixed in position, both rings 5,6 surround the incision and the sleeve 4 passes through the incision connecting the rings 5 and 6. The proximal ring 6 has adjustment means 12 provided by being rotatably mounted on the skin to modify the length of the sleeve 4. This ensures that the fixing means 10 and the distal ring 5 are brought into close contact with the abdominal wall 3, thereby ensuring a good seal is maintained and that the device 1 is firmly mounted in position.
  • The proximal ring 6 may have a connector ring 7 for receiving additional seals to prevent loss of pressure from the cavity 2. The connector ring 7 may also be used for holding or guiding medical instruments into position over, through or in the incision.
  • In use, an incision is made in the abdominal wall 3 and the distal ring 5 and associated self-sealing valve 18 is passed through the incision into the cavity 2. The self-sealing valve 18 incorporates elasticized filaments, which are biased toward a closed position or inoperative position (see FIG. 3). The distal ring 5 is moved when in the cavity 2 so that the ring 5 surrounds the incision. The proximal ring 6 can then be rotated, adjusted in height or stretched to take up the surplus material of sleeve 4 on the proximal ring 6. When the distal ring 5 is drawn up to snugly engage the internal abdominal wall 3 surrounding the incision, the proximal ring 6 is attached to the patient's skin to fix the device 1 in position. When in position, the sleeve 4 passing between the portions of the abdominal wall 3 exposed by the incision retracts the incision sides creating a lumen or bore through which an object or hand can be passed. A seal is provided by the self-sealing valve 18.
  • When a surgeon wishes to gain access to the cavity 2, a hand or instrument is passed down through the sleeve 4. The outward pressure of the retracted sleeve 4 on the abdominal wall ensures that access is not restricted. The self-sealing valve 18 is easily operated by the surgeon to gain access to the cavity 2 and surgery can be performed. As an object is removed, the self-sealing valve 18 closes down sealing the cavity 2. Specifically, when a surgeon passes a hand or instrument between the filaments which run all around the end of the sleeve 4, they are forced out of position into an operating position as shown in FIG. 4. As filaments are used, they accurately mould to the surface of the inserted object preventing loss of gas from the body cavity 2. The memory resident in these filaments returns the valve 18 to the inoperative position once the object is removed to re-seal the sleeve 4.
  • It will be noted that equivalent methods of dispensing and retracting slack sleeve material following positioning of the device may be used.
  • FIGS. 5 and 6 show an alternative to the self-sealing valve 18 described above in relation to FIGS. 1-4. In this alternative embodiment, a spring valve 28 provides the seal to the sleeve 4. The spring valve 28 is provided by mounting a member 27 within a pocket 29 of the sleeve 4. Tension in the spring valve 28 is provided by forming the member 27 to be longer that the pocket 29. Operation of this valve is identical to that described above.
  • It will be understood that the operation of these valves is not dependent on the adjustment means described above.
  • In a still further arrangement, the proximal ring may be adjusted in height by means of inserting compressible foam rings between the proximal ring and the abdominal wall. Alternatively, the sleeve may be made of an elastomer material which when the distal ring is inserted into the incision, stretches the elastomer sheet causing tension between the distal ring and the proximal ring.
  • It will be understood that the self-sealing valves 18, 28 described herein may be equally used as external proximal valves (FIG. 7) or as internal distal valves.
  • It will of course be understood that the invention is not limited to the specific details described herein, which are given by way of example only, and that various modifications and alterations are possible within the scope of the invention.

Claims (16)

1. A surgical device (1) for use in minimally invasive surgery of the type using an inflated body cavity (2) accessible to a surgeon through an access port, defined by the device (1), surrounding an incision in a patient's body, the device (1) having:
body cavity engagement device (5) for insertion into the incision to locate the device (1) in position;
fixing device (10) for attaching the device to a patient's skin, the fixing device including a proximal ring (6);
a sleeve (4) connected between the body cavity engagement device and the fixing device, wherein the sleeve is adjustable by the positioning of the proximal ring so that the positioning of the proximal ring retracts the sleeve to cause the sleeve to apply outward pressure against the patient's body to retract the incision to define an access port and create a seal between the incision and sleeve; and
sealing device, at least one of mounted on the sleeve and operating on the sleeve, to prevent substantial leakage of gas from the body cavity on inflation when in an inoperative position and formed to mould about a substantial portion of a surgeon's hand or surgical instrument on insertion in an operating position.
2. The surgical device of claim 1 in which the body cavity engagement device (5) is provided by a distal ring (5) formed for insertion into the incision.
3. The surgical device of claim 2, in which the sealing device includes a self-sealing valve mounted on the sleeve.
4. The surgical device of claim 1, further including a connector ring (7) mounted adjacent said proximal ring.
5. The surgical device of claim 2, in which the fixing device (6) incorporates adjustment means for modifying the length of the sleeve, so as to ensure that the fixing device (6) and the distal ring (5) may be brought into close contact with the abdominal wall ensuring a good seal is maintained and that the device (1) is firmly mounted in position.
6. The surgical device of claim 1, in which the sleeve is made of an elastomer material, whereby insertion of the distal ring into an incision stretches the elastomer material causing tension between the distal ring and proximal ring.
7. The surgical device of claim 1, wherein said sealing device is an external proximal valve mounted adjacent to said proximal ring.
8. The surgical device of claim 1, wherein said sealing device is an internal distal valve.
9. A surgical device for use in minimally invasive surgery of the type using an inflated cavity accessible to a surgeon through an access port, defined by the device, surrounding an incision in a patient's body, the device comprising:
body cavity engagement device for insertion into the incision to locate the device in position, said body cavity engagement device including a distal ring;
fixing device for attaching the device to a patient's skin, said fixing device including a proximal ring;
a sleeve connected between the body cavity engagement device and the fixing device, said sleeve having an adjustable length that shortens to cause said sleeve to apply outward pressure against the patient's body sufficient to retract the incision to define the access port; and
one of an external proximal sealing valve mounted adjacent to said proximal ring and an internal distal sealing valve mounted adjacent to said distal ring, to prevent substantial leakage of gas from the body cavity on inflation when in an operative position and formed to mold about a substantial portion of a surgeon's hand or surgical instrument on insertion in an operating position.
10. A surgical device for use in minimally invasive surgery of the type using an inflated cavity accessible to a surgeon through an access port, defined by the device, surrounding an incision in a patient's body, the device comprising:
body cavity engagement device for insertion into the incision to locate the device in position, said body cavity engagement device including a distal ring;
fixing device for attaching the device to a patient's skin, said fixing device including a proximal ring;
a sleeve connected between the body cavity engagement device and the fixing device, said sleeve having a length;
wherein said proximal ring includes an adjustment means for adjusting the length of said sleeve to cause said sleeve to apply outward pressure against the patient's body sufficient to retract sides of the incision; and
one of an external proximal sealing valve mounted adjacent to said proximal ring and an internal distal sealing valve mounted adjacent to said distal ring, to prevent substantial leakage of gas from the body cavity on inflation when in an operative position and formed to mold about a substantial portion of a surgeon's hand or surgical instrument on insertion in an operating position.
11. The surgical device of claim 1, wherein said sealing device is a self-sealing valve formed of elasticized filaments.
12. The surgical device of claim 9, wherein said one of an external proximal sealing valve mounted adjacent to said proximal ring and an internal distal sealing valve mounted adjacent to said distal ring is a self-sealing valve formed of elasticized filaments.
13. The surgical device of claim 10, wherein said one of an external proximal sealing valve mounted adjacent to said proximal ring and an internal distal sealing valve mounted adjacent to said distal ring is a self-sealing valve formed of elasticized filaments.
14. The surgical device of claim 1, wherein said sealing device is a self-sealing spring valve including a tensioned member mounted on the sleeve.
15. The surgical device of claim 9, wherein said one of an external proximal sealing valve mounted adjacent to said proximal ring and an internal distal sealing valve mounted adjacent to said distal ring is a self-sealing spring valve including a tensioned member mounted on the sleeve.
16. The surgical device of claim 10, wherein said one of an external proximal sealing valve mounted adjacent to said proximal ring and an internal distal sealing valve mounted adjacent to said distal ring is a self-sealing spring valve including a tensioned member mounted on the sleeve.
US11/188,882 1999-03-18 2005-07-26 Surgical access device Abandoned US20050261720A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IES990220 1999-03-18
IES990220 IES990220A2 (en) 1999-03-18 1999-03-18 A surgical device
PCT/IE2000/000033 WO2000054676A1 (en) 1999-03-18 2000-03-20 A surgical access device
US09/936,841 US6945932B1 (en) 1999-03-18 2000-03-20 Surgical access device
US11/188,882 US20050261720A1 (en) 1999-03-18 2005-07-26 Surgical access device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/188,882 US20050261720A1 (en) 1999-03-18 2005-07-26 Surgical access device

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/IE2000/000033 Continuation WO2000054676A1 (en) 1999-03-18 2000-03-20 A surgical access device
US09/936,841 Continuation US6945932B1 (en) 1999-03-18 2000-03-20 Surgical access device

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US20050261720A1 true US20050261720A1 (en) 2005-11-24

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US09/936,841 Active US6945932B1 (en) 1999-03-18 2000-03-20 Surgical access device
US11/188,882 Abandoned US20050261720A1 (en) 1999-03-18 2005-07-26 Surgical access device

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US09/936,841 Active US6945932B1 (en) 1999-03-18 2000-03-20 Surgical access device

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EP (1) EP1164951B1 (en)
AT (1) AT310451T (en)
DE (1) DE60024241T2 (en)
IE (1) IES990220A2 (en)
WO (1) WO2000054676A1 (en)

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US6945932B1 (en) 2005-09-20

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