FINGER-MOUNTED SURGICAL INSTRUMENTS
A device is described that has an instrument portion secured to a sleeve/cuff portion, where the sleeve/cuff portion is configured to receive a portion of user's finger therein and to radially compress onto the user's finger to hold the instrument portion thereon. The present invention is particularly well suited for use in minimally invasive surgical procedures. The present invention also teaches a method of forming a knot in suture material as well as other techniques for treating patients.
This application is a continuation of U.S. application Ser. No. 14/845,709, filed Sep. 4, 2015, now U.S. Pat. No. 9,993,243, which claims the benefit of U.S. Application No. 62/048,167, filed Sep. 9, 2014, the entire disclosures all of which are incorporated by reference herein.
FIELD OF THE INVENTIONThe present invention generally relates to balloon catheters and, in particular, to an integrated inflation system for balloon catheters.
BACKGROUND OF THE INVENTIONSurgical instruments such as scalpels, clamps, suturing devices, knot pushers, etc., are commonly used in various types of surgery, including conventional surgeries as well as minimally invasive surgeries. Minimally invasive surgical techniques have emerged as an alternative to conventional surgical techniques to perform a plurality of surgical procedures. Minimally invasive procedures differ from conventional surgical procedures in that a plurality of devices may be introduced into the body through a small incision. As a result, trauma to the body is greatly reduced, thereby decreasing the recovery time of the patient.
Many conventional surgical procedures have been performed using minimally invasive techniques. One challenge presented when performing a surgical procedure is to provide the surgeon or other user with the ability to firmly hold the surgical instrument during its use, with reduced chance of the user losing grasp of the surgical instrument while also providing the user with effective control of the surgical instrument, especially the distal end thereof which is typically the “functional” end of the instrument which actually interacts with the patient's tissue or otherwise performs the procedure.
One challenge during surgeries, including minimally invasive techniques, is to position and apply sutures to an area of interest. Commonly, a suture will be required to approximate at least two pieces of tissue. In conventional surgical techniques, the surgeon will approximate the tissue pieces by forcing a needle and suture material through various portions of the tissue to be approximated, and tying a knot in the suture material resulting in approximation. However, even in conventional surgical techniques the user's access to the tissue to be sutured can be limited and/or involve small/delicate tissue requiring fine operational movement of the instrument. In minimally invasive surgical techniques, the surgeon's access to the approximation site can be greatly reduced. Commonly, a surgical device will attach the suture material to the tissue. The surgeon will remotely form a knot in the suture material and advance the knot to the area of interest with a “knot pusher,” thereby approximating the tissue. Thereafter, the knot pusher is removed from the body and a suture cutting device is inserted to cut the surplus suture material.
Several knot pushing devices are known. These devices permit an operator to push suture knots which have been formed extracorporeally towards tissue to be sutured. For example, U.S. Pat. No. 5,769,863, issued to Garrison et al., discloses a surgical knot pusher having an elongated body connected to a pushing head. The pushing head engages a portion of suture material containing a knot and is advanced to the area of interest, thereby “throwing” the knot. Once the suture knot is placed the knot pushing device is removed and a cutting element is introduced into the body and cuts the remaining suture material. The remaining suture material is then removed. Another example of a knot pusher is presented in U.S. Pat. No. 6,860,890, entitled “Surgical Knot Pushing Device and Method of Use,” which discloses a system using an elongated catheter-like device capable of intracorporeally positioning and applying a suture knot to an area of interest via minimally-invasive surgical openings. The knot pushing system allows the operator to cut and remove surplus suture material using the knot pushing device.
Many medical procedures are delicate procedures involving small and/or enclosed spaces where a user may only be able to advance the tips of his/her fingers. Moreover, it may be desirable to provide the user with devices and methods which provide tactile feedback that is stronger than that provided by larger hand-held or machine-held devices.
SUMMARY OF THE INVENTIONThe present invention provides a system, device, and method for permitting a surgeon or other user to effectively perform surgical procedures, including suturing, knot tying, tissue cutting, tissue ablation, tissue approximation, suture cutting, etc., using one or more surgical instruments that can be easily held by the user, including where the user may hold multiple such instruments at the same time.
A device according to the invention has a finger attachment sleeve/cuff portion that securely fits on a digit (e.g., finger or thumb) of a user. The finger attachment sleeve portion is attached to an instrument portion which has an operational element (such as a cutting element, clamping element, knot pushing element, etc.) thereon, such as on the distal end of the instrument portion. The device of the present invention is optimized for use in minimally invasive surgical procedures wherein the surgeon's access to the area of interest is greatly reduced. For example, a knot pushing device of the present invention may be used to advance a plurality of bi-manually formed surgical knots utilized in conventional surgical procedures. The knot pushing device disclosed herein may be further used to sequentially advance multiple knots or “throws” to the repair area.
A surgical device according to an embodiment of the invention may comprise: a finger attachment sleeve portion which may comprise a radially expandable and/or radially compressible sleeve configured to slidingly receive and hold a digit of a user; and an instrument portion secured to the finger attachment sleeve. The instrument portion may comprise a knot pushing element configured to engage suture during a medical procedure, and the instrument portion may further comprise an elongated member having a grooved and/or curled distal end. The instrument portion may comprise an elongated body which is rigid or flexible. The instrument portion may comprise a knot positioning member. The sleeve may comprise a braided tubular structure that will radially expand when longitudinally compressed and/or will radially contract when longitudinally stretched. The sleeve may comprise an inner lumen of between 1 and 6 cm in inner length and/or between 1 and 3 cm in inner diameter. The instrument portion may comprise an elongated member secured to and extending from a distal end of the sleeve. The instrument portion may comprise a first shaft and a second shaft and a pivot joint rotatably connecting the first shaft and the second shaft, with a proximal end of the first shaft secured to the sleeve. The instrument portion may comprise a scissors, wherein the first shaft comprises a first blade portion at a first shaft distal end and the second shaft comprises a second blade portion at a second shaft distal end. The instrument portion may comprise a clamp, wherein the first shaft comprises a first clamp portion at a first shaft distal end and the second shaft comprises a second clamp portion at a second shaft distal end.
A surgical device according to the invention may comprise: a first finger attachment sleeve portion, which may comprise a radially expandable and radially compressible first sleeve configured to slidingly receive and hold a first digit of a user; a second finger attachment sleeve portion, which may comprise a radially expandable and radially compressible second sleeve configured to slidingly receive and hold a second digit of a user; and an instrument portion secured to the first finger attachment sleeve and to the second finger attachment sleeve. The instrument portion may comprise scissors comprising a first shaft and a second shaft and a pivot joint rotatably connecting the first shaft and the second shaft, wherein the first shaft comprises a first scissor blade at a distal end thereof and the second shaft comprises a second scissor blade at a distal end thereof, wherein a proximal end of the first shaft is secured to the first finger attachment sleeve, and/or a proximal end of the second shaft is secured to the second finger attachment sleeve. The instrument portion may comprise a surgical clamp comprising a first shaft and a second shaft and a pivot joint rotatably connecting the first shaft and the second shaft, wherein the first shaft comprises a first clamp portion at a distal end thereof and the second shaft comprises a second clamp portion at a distal end thereof, wherein a proximal end of the first shaft is secured to the first finger attachment sleeve and/or a proximal end of the second shaft is secured to the second finger attachment sleeve. The instrument portion may comprise a first shaft and a second shaft, wherein a proximal end of the first shaft is secured to the first finger attachment sleeve and/or a proximal end of the second shaft is secured to the second finger attachment sleeve, and the instrument portion may comprise a pivot joint rotatably connecting the first shaft to the second shaft.
Methods according to the invention may include methods of treating tissue using the devices described herein, which may comprise: advancing a first finger of a user into a surgical device, wherein the surgical device comprises a radially expandable and radially compressible first sleeve configured to slidingly receive and hold a digit of a user with an instrument portion secured to the first sleeve, wherein advancing the first finger of the user into the surgical device comprises slidingly advancing the first digit of the user into the surgical device until a tip of the digit is advanced to the distal end of an inner lumen of the first sleeve; advancing the first finger of the user toward a target site until the instrument portion is positioned at the target site; and performing a procedure at the target site with the instrument portion. Methods may further include advancing a second finger of a user into a surgical device, wherein the surgical device comprises a radially expandable and radially compressible second sleeve configured to slidingly receive and hold a digit of a user with an instrument portion secured to the second sleeve, wherein advancing the second finger of the user into the surgical device comprises slidingly advancing the second digit of the user into the surgical device until a tip of the digit is advanced to the distal end of an inner lumen of the second.
Other objects and further features of the present invention will become apparent from the following description when read in conjunction with the attached drawings.
The invention will now be explained and other advantages and features will appear with reference to the accompanying schematic drawings wherein:
Disclosed herein is a description of various illustrated embodiments of the invention. This description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention. The section titles and overall organization of the present description are for the purpose of convenience only and are not intended to limit the present invention.
The surgical instruments and methods of the present invention are generally applicable to surgical procedures, including conventional and minimally invasive surgical procedures. The device and method disclosed herein are of particular value when a surgeon or other user is required to hold a surgical instrument while advancing the users finger/thumb into a confined operating area, such as into an incision in the patient, as is often the case during minimally-invasive surgeries. The device has particular relevance to surgical procedures such as securing cardiac valves and closure of anatomic structures (i.e., aorta, atrium, etc.). Those skilled in the art will appreciate, however, that the device and method are relevant to a variety of procedures.
As those skilled in the art will appreciate, the present invention may be utilized during conventional surgical procedures as well as other procedures, such as minimally-invasive surgical procedures. It is anticipated as being within the scope of the present invention to produce a surgical instrument capable of performing functions at various locations within a body.
Referring to
The digit-grasping portion 16 has the digit-grasping portion distal end 30 and a digit-grasping portion proximal end 32. In the particular embodiment depicted the digit-grasping portion 16 is a sleeve or cuff defined by an elongated hollow structure having an outer surface 33, with a length 34 and a width 36. The digit-grasping portion 16 has a proximal opening 38 leading to an internal lumen 40 for slidingly receiving a digit (such as finger or thumb) of a user. The internal lumen 40 has an inner length 42 and inner diameter 44 sized and configured to slidingly receive and retain at least a distal portion of a surgeon's or other user's digit, e.g., thumb and/or finger(s) (index finger, middle finger, ring finger, pinky finger). The inner surface 46 of the digit-grasping portion 16 may be textured or otherwise configured for increased frictional contact with a user's digit when inserted therein.
The digit-grasping portion 16 may be a substantially tubular sleeve or cuff and formed with a substantially cylindrically, helically wound braid which permits the structure to elongate and narrow when subjected to longitudinally applied stretching forces and/or radially-applied compressive forces, and to shorten and thicken when subjected to longitudinally applied compressive forces and/or radially-applied expansion forces. Examples of such structures include the common biaxial braid, and known in the art for use in children's “finger trap” toys. As is known in the art, such a sleeve/cuff can be placed on a finger or thumb, and pulling on such a sleeve/cuff lengthens and narrows it. The greater the pull, the more the circumference narrows and hence the stronger the sleeve/cuff grips the finger or thumb. The sleeve can be removed from the finger/thumb by applying a longitudinally compressive force to the structure, such as by pressing longitudinally inward against a first (e.g., proximal) edge of the sleeve, which may be accompanied by simultaneously applying a longitudinally-inward-directed force against the opposing (e.g., distal) end of the sleeve.
As depicted in
Note that in a preferred embodiment of the invention the sleeve/cuff in the relaxed state has an inner diameter somewhat smaller than an outer diameter of the digit (finger/thumb) to which the sleeve/cuff is attached, so that the inherent inward bias of the sleeve/cuff will compress against the user's digit to prevent inadvertent sliding off thereof. In such an embodiment, applying the sleeve/cuff to the digit may require the sleeve/cuff to be radially expanded/longitudinally shorted, such as may be achieved by pressing the user's finger into the inner lumen of the sleeve/cuff (thus applying longitudinally compressive force and radially expansive force to the sleeve/cuff). When the longitudinally compressive force is removed, the sleeve/cuff will bias back toward its relaxed state, thus gripping onto the user's finger/thumb. The gripping force becomes even stronger if device is subjected to pulling at either end. The device can be easily removed by applying inwardly-direct longitudinal force thereto, such as by applying a distally-directed force against the proximal end of the digit-grasping portion.
Devices according to the present invention may be manufactured with various dimensions, as required for particular applications. For example, preferred lengths for the distal knot pushing/creating segment may be from 1 cm to 20 cm. Preferred dimensions for the cuff/sleeve may include an inner lumen of cuff/sleeve of between 1 cm and 6 cm in internal length and between 1 cm and 3 cm in inner diameter.
Those skilled in the art will appreciate that the sleeve/cuff 16 may be manufactured from any one or more of a plurality of materials, including, for example, polymers, carbon, metals, etc. Similarly, the instrument portion 18 may be formed from various materials, such as metals (e.g., stainless steel, titanium, etc.), polymers, etc. Also, note that the instrument portion 18 of the present invention may contain one or more internal lumens, depending on the particular application.
Referring now to
A knot pusher 60 according to an embodiment of the invention is depicted in
A digit-receiving sleeve/cuff 70 provides secure attachment to a surgeon or other user's finger or thumb.
As depicted in
A cutting instrument 100 according to an embodiment of the invention is depicted in
A hooked surgical device 110 according to an embodiment of the invention is depicted in
A blunt-ended surgical device 120 according to an embodiment of the invention is depicted in
Surgical devices according to embodiments of the invention may comprise multiple sleeves/cuffs, such as in the embodiments of
A surgical clamp 150 according to an embodiment of the invention is depicted in
While woven/braided sleeve/cuff designs were previously discussed, other sleeve/cuff configurations are also within the scope of the invention. For example, as depicted in
Other embodiments of sleeves/cuffs may include compressible and/or inflatable cuffs. As depicted in
In closing it is understood that the embodiments of the invention disclosed herein are illustrative of the principles of the invention. Accordingly, the present invention is not limited to that precisely as shown and described in the present invention.
Claims
1. A surgical device for attaching to a digit of a user, comprising:
- a finger attachment sleeve formed in a tube with a closed distal end and an open proximal end, the sleeve sized to slidingly receive a user's digit through the open end and comprising a biaxial helically wound braided tubular structure configured to radially expand when longitudinally compressed and configured to contract when longitudinally stretched, wherein the sleeve in a relaxed state has an inner diameter somewhat smaller than an outer diameter of the user's digit, such that the sleeve must be longitudinally compressed to radially expand and fit the sleeve onto the user's digit and the sleeve has an inherent inward bias that causes the braided tubular structure to contract to a fastened diameter and grip onto the user's digit; and
- an instrument portion secured to the finger attachment sleeve.
2. The device of claim 1, wherein the sleeve comprises an inner lumen of between 1 and 6 cm in inner length and between 1 and 3 cm in inner diameter.
3. The device of claim 2, wherein the instrument portion has a length of from 1 cm to 20 cm.
4. The device of claim 1, wherein the instrument portion has a length of from 1 cm to 20 cm.
5. The device of claim 1, the instrument portion comprises a knot pushing element secured to the closed distal end of the sleeve and configured to engage a suture during a medical procedure.
6. The device of claim 5, wherein the knot pusher includes an elongated member that extends a length from the distal tip and terminates in a distal face with a groove thereacross configured to receive a suture therein.
7. The device of claim 6, wherein the elongated member forms a helical twist just proximal to the grooved distal face, the helical twist being formed by a helical bend in the elongated member.
8. The device of claim 6, wherein the groove has a radius of between 0.1 to 1 mm.
9. The device of claim 6, wherein the groove divides the distal face into a first face portion and a second face portion.
10. The device of claim 9, wherein the first face portion extends distally farther than the second face portion, with a first face portion inner side surface extending past the second face portion and presenting a surface to engage against a suture.
11. The device of claim 1, wherein the instrument portion is a scissors, wherein a first shaft comprises a first blade portion at a first shaft distal end and a second shaft comprises a second blade portion at a second shaft distal end wherein the two shafts are rotatably connected around a pivot joint and wherein the proximal end of the first shaft is secured to the sleeve.
12. The device of claim 1, wherein the instrument portion is a clamp, wherein a first shaft comprises a first a first clamp portion at a first shaft distal end and a second shaft comprises a second clamp portion at a second shaft distal end wherein the two shafts are rotatably connected around a pivot joint and wherein the proximal end of the first shaft is secured to the sleeve.
13. The device of claim 12, further including a lock to hold the clamp closed.
14. A surgical device, comprising:
- a first finger attachment sleeve formed in a tube with a closed distal end and an open proximal end, the sleeve sized to slidingly receive a user's first digit through the open end and comprising a biaxial helically wound braided tubular structure configured to radially expand when longitudinally compressed and configured to contract when longitudinally stretched, wherein the sleeve in a relaxed state has an inner diameter somewhat smaller than an outer diameter of the user's first digit, such that the sleeve must be longitudinally compressed to radially expand and fit the sleeve onto the user's digit and the sleeve has an inherent inward bias that causes the braided tubular structure to contract to a fastened diameter and grip onto the user's first digit;
- a second finger attachment sleeve formed in a tube with a closed distal end and an open proximal end, the sleeve sized to slidingly receive a user's second digit through the open end and comprising a biaxial helically wound braided tubular structure configured to radially expand when longitudinally compressed and configured to contract when longitudinally stretched, wherein the sleeve in a relaxed state has an inner diameter somewhat smaller than an outer diameter of the user's second digit, such that the sleeve must be longitudinally compressed to radially expand and fit the sleeve onto the user's digit and the sleeve has an inherent inward bias that causes the braided tubular structure to contract to a fastened diameter and grip onto the user's second digit; and
- an instrument portion secured to the first finger attachment sleeve and to the second finger attachment sleeve.
15. The surgical device of claim 14, wherein the instrument portion comprises scissors comprising a first shaft and a second shaft and a pivot joint rotatably connecting the first shaft and the second shaft, wherein the first shaft comprises a first scissor blade at a distal end thereof and the second shaft comprises a second scissor blade at a distal end thereof, wherein a proximal end of the first shaft is secured to the first finger attachment sleeve and wherein a proximal end of the second shaft is secured to the second finger attachment sleeve.
16. The surgical device of claim 14, wherein the instrument portion comprises a surgical clamp comprising a first shaft and a second shaft and a pivot joint rotatably connecting the first shaft and the second shaft, wherein the first shaft comprises a first clamp portion at a distal end thereof and the second shaft comprises a second clamp portion at a distal end thereof, wherein a proximal end of the first shaft is secured to the first finger attachment sleeve and wherein a proximal end of the second shaft is secured to the second finger attachment sleeve.
17. The device of claim 16, further including a lock to hold the surgical clamp closed.
Type: Application
Filed: Jun 7, 2018
Publication Date: Oct 4, 2018
Inventors: L'Emir Ahmad El-Ayoubi (Bad Bevensen), Mark M. Dehdashtian (Irvine, CA), Teodoro S. Jimenez (Irvine, CA), Yoon H. Kwon (Mission Viejo, CA), Norma A. Garcia (Santa Ana, CA)
Application Number: 16/002,935