A catheter guided circumferential micro anastomotic vascular stapling device

Abstract

The present invention relates to a catheter guided circumferential micro anastomotic vascular stapling device [100] comprises of a catheter [1] which houses a set of guide wires [2a and 2b]; a male circumferential micro anastomotic vascular stapling device [3]; and a female circumferential micro anastomotic vascular stapling device [4]. The male stapling device [3] is attached to distal end of the guide wire [2a] and the female stapling device [4] is attached to distal end of the guide wire [2b]. The manoeuvring of the two guidewires [2a and 2b] along with the respective stapling devices [3 and 4] are controlled at proximal ends of the respective guide wires by a Surgeon through respective trigger knobs [5a and 5b]. Said female and male stapling devices penetrates, deploys, staples and retracts along with the cut vessel wall tissue with the help of a manual trigger through the respective trigger knobs.

Description

[0001] A CATHETER GUIDED CIRCUMFERENTIAL MICRO ANASTOMOTIC VASCULAR STAPLING DEVICE

[0002] FIELD OF INVENTION

[0003] The present invention relates generally to a surgical system for minimally invasive surgery, particularly to a stapling device. More particularly, the present invention relates to a catheter guided circumferential micro anastomotic vascular stapling device.

[0004] BACKGROUND OF INVENTION

[0005] Surgical environment is becoming increasingly challenging for the cardiac surgeon since off- pump coronary arteries bypass grafts and minimally invasive approach came up. Different suture techniques have been used for anastomosis in coronary artery bypass graft surgery. In general, coronary artery bypass grafting is a surgical procedure for revascularization of obstructed coronary arteries and anastomosis is the surgical joining of tissues of tubular structures having a lumen, such as blood vessels, to create communication between the lumina of the structures. Proximal and distal anastomotic devices are ideally suited to complement the ever-growing interest in minimal-access and non-stemotomy surgical revascularization. The suture technique for coronary anastomosis construction is becoming inadequate to meet new surgeons' demand while performing Robotic surgeries. Therefore, there is an increasing need for alternative ways to perform coronary bypasses. Suture less coronary anastomotic devices are intended to facilitate minimally invasive coronary artery bypass grafting by easing and eventually standardizing the anastomotic technique. However, the anastomotic techniques require a specially designed implanting device, and therefore require device-related expertise.

[0006] Robotically assisted surgical systems have been adopted worldwide for minimally invasive surgery. Robotic totally endoscopic coronary artery bypass grafting represents the most advanced form of coronary surgery. Experiments were being carried out to study the feasibility of catheter-based endoscopic bypass grafting. The combination of robotic technology and simple technique for anastomotic construction may facilitate beating heart total endoscopic coronary artery bypass. Also, many types of surgical stapling instruments have been devised for different surgical procedures for making tissue attachments faster and more reliable. Various surgical stapling instruments have been developed for end-to-end, side-to-side, and end-to-side anastomoses of hollow or tubular organs. However, there has been increasing number of adverse events associated with the surgical staplers. US20130274772A1 discloses apparatuses and methods for performing anastomosis of distal and proximal vessels. An exemplary apparatus includes a distal anastomosis includes a distal hub and a distal engagement segment. The distal hub is configured to detachably connect to a distal catheter. The distal engagement segment is connected to the distal hub and includes one or more distal arm segments that are configured to engage an inner wall of the distal vessel.

[0007] US5843169A disclosed an apparatus and method for stapling graft material to a vessel wall utilizing the same entry point into the vessel as used for initial deployment of the graft while providing substantially unobstructed blood flow during the stapling procedure and preserving the patency of orifices of branches of the vessel. In particular, the apparatus is comprised of a tube, a stapling device, a balloon catheter, and a sheath.

[0008] Accordingly, there exists a need for a catheter guided circumferential micro anastomotic vascular stapling device which deploys and retracts with the help of a manual trigger.

[0009] OBJECTS OF INVENTION

[0010] One or more of the problems of the conventional prior art may be overcome by various embodiments of the device and method of the present invention.

[0011] It is the primary object of the present invention to provide a catheter guided circumferential micro anastomotic vascular stapling device.

[0012] It is another object of the present invention, wherein the stapling device includes male circumferential micro anastomotic vascular stapling device and female circumferential micro anastomotic vascular stapling device.

[0013] It is another object of the present invention, wherein the male and female micro anastomotic vascular stapling devices are attached to distal ends of guide wires, which passes through the catheter.

[0014] It is another object of the present invention, wherein the catheter guided minimally invasive coronary anastomotic circumferential micro stapling device penetrates, deploys, staples, cut the vessel wall tissue and retracts with the help of a manual trigger. It is another object of the present invention, wherein the deployment and retraction of the male and female circumferential micro anastomotic vascular stapling device involves cutting of the vessel wall tissue and instantly stapling the edge of the Internal Thoracic Artery (ITA) to the Coronary Artery (CA) by coupling at plurality of circumferential points.

[0015] It is another object of the present invention, wherein micro individual staple pins are made up of a combination of titanium and steel.

[0016] SUMMARY OF INVENTION

[0017] Thus according to the basic aspect of the present invention, there is provided a catheter guided circumferential micro anastomotic vascular stapling device comprises of: a catheter which houses a set of guide wires; a male circumferential micro anastomotic vascular stapling device attached to distal end of the guide wire; and a female circumferential micro anastomotic vascular stapling device attached to distal end of the guide wire; wherein the male circumferential micro anastomotic vascular stapling device comprises of: a top sliding mount disc to which a plurality of pin levers is attached; a bottom sliding mount disc to which a plurality of pin levers is attached; and a plurality of release wires with T - shaped distal ends, wherein each of the pin levers has two arms at its distal end to hold individual staple pins, and wherein each of the pin levers in the top and bottom sliding mount discs is interconnected to each other to facilitate sliding and positioning of the staple pins, wherein the female circumferential micro anastomotic vascular stapling device comprises of: a top sliding mount disc to which a plurality of pin levers is attached; a bottom sliding mount disc to which a plurality of pin levers is attached; a plurality of release wires with T - shaped distal ends; and a sieve positioned at the base of the bottom sliding mount disc to collect cut vessel wall tissue, wherein each of the pin levers has two arms at its distal end provisioned to hold individual staple pins, and wherein each of the pin levers in the top and bottom sliding mount discs is interconnected to each other to facilitate sliding and positioning of the staple pins, wherein maneuvering of the two guidewires along with the respective micro anastomotic vascular stapling devices housed inside the catheter are controlled at proximal ends of the respective guide wires through respective trigger knobs, and wherein the female and male circumferential micro anastomotic vascular stapling devices penetrates, deploys, staples and retracts along with the cut vessel wall tissue with the help of a manual trigger through the respective trigger knobs.

[0018] It is another aspect of the present invention, wherein the top and bottom sliding mount discs of the male circumferential micro anastomotic vascular stapling device are positioned parallel to each other to facilitate said sliding mount discs to move the pin levers.

[0019] It is another aspect of the present invention, wherein the top and bottom sliding mount discs of the female circumferential micro anastomotic vascular stapling device are positioned parallel to each other to facilitate said sliding mount discs to move the pin levers.

[0020] It is another aspect of the present invention, wherein each of the release wires of the male circumferential micro anastomotic vascular stapling device originates from proximal end of each of the pin levers and each of the T - shaped distal ends of the release wires passes through distal end at either side of each of the pin levers, where couplet of staple pins is suspended which is subsequently released after stapling.

[0021] It is another aspect of the present invention, wherein each of the release wires of the female circumferential micro anastomotic vascular stapling device originates from proximal end of each of the pin levers and each of the T - shaped distal ends of the release wires passes through distal end at either side of each of the pin levers, where couplet of staple pins is suspended which is subsequently released after stapling.

[0022] It is another aspect of the present invention, wherein when the trigger knobs are maneuvered for deployment, the staple pins of the male circumferential micro anastomotic vascular stapling device are placed in exact orientation with the staple pins of the female micro anastomotic vascular stapling device and the sliding mount discs are moved simultaneously towards each other which instantly initiates the stapling of the staple pins.

[0023] It is another aspect of the present invention, wherein said orientation is achieved by a magnetic field of attraction induced between the sliding mount disc of the male circumferential micro anastomotic vascular stapling device and the sliding mount disc of the female circumferential micro anastomotic vascular stapling device.

[0024] It is another aspect of the present invention, wherein when the trigger knobs are maneuvered for retraction, the sliding mount discs move away from each other in reverse direction which subsequently retracts the pin levers which further retracts the release wires and subsequently retracts the sieve and finally retracts both the male and female circumferential micro anastomotic vascular stapling device simultaneously and co-axially along with the cutout vessel wall tissue through the guide wires.

[0025] It is another aspect of the present invention, wherein said retraction of the release wires attached to the pin levers facilitates the release of all the staple pins circumferentially stapled intact in a circular pattern.

[0026] BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1: illustrates a catheter guided circumferential micro anastomotic vascular stapling device according to the present invention.

[0028] Figure 2: illustrates a male circumferential micro anastomotic vascular stapling device according to the present invention.

[0029] Figure 3: illustrates a male circumferential micro anastomotic vascular stapling device with staple pins and release wires according to the present invention.

[0030] Figure 4: illustrates a female circumferential micro anastomotic vascular stapling device according to the present invention.

[0031] Figure 5 : illustrates a female circumferential micro anastomotic vascular stapling device with release wires according to the present invention.

[0032] Figure 6: illustrates manoeuvring of guide wires into the Internal Thoracic Artery (ITA) according to the present invention. Figure 7: illustrates penetration of the female and male circumferential micro anastomotic vascular stapling device into the Coronary Artery (CA) and initiation of the stapling process according to the present invention.

[0033] Figure 8: illustrates completion of the Anastomosis procedure according to the present invention.

[0034] Figure 9: illustrates retraction of the male and female circumferential micro anastomotic vascular stapling device according to the present invention.

[0035] Figure 10: illustrates collection of cut tissue by the sieve and retraction of the female circumferential micro anastomotic vascular stapling device along with the cut tissue according to the present invention.

[0036] Figure 11 : illustrates coupling of the male and female staple pins and retraction of the male and female circumferential micro anastomotic vascular stapling device according to the present invention.

[0037] Figure 12: illustrates Anastomosis of the Internal Thoracic Artery with Coronary Artery and the stapled pins to fix both the tissues firmly according to the present invention.

[0038] DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING FIGURES

[0039] The present invention as herein described relates to a catheter guided circumferential micro anastomotic vascular stapling device.

[0040] Referring to Figure 1, the catheter guided circumferential micro anastomotic vascular stapling device

[0100] comprises of a catheter [1] which houses a set of guide wires [2a and 2b]; a male circumferential micro anastomotic vascular stapling device [3]; and a female circumferential micro anastomotic vascular stapling device [4] . The male circumferential micro anastomotic vascular stapling device [3] is attached to distal end of the guide wire [2a] and the female circumferential micro anastomotic vascular stapling device [4] is attached to distal end of the guide wire [2b] . The manoeuvring of the two guidewires [2a and 2b] along with the respective micro anastomotic vascular stapling devices [3 and 4] are controlled at proximal ends of the respective guide wires [2a and 2b] by a Surgeon through respective trigger knobs [5a and 5b].

[0041] Referring to Figures 2 and 3, the male circumferential micro anastomotic vascular stapling device [3] comprises of a top sliding mount disc [3a] to which a plurality of pin levers [3b] is attached; a bottom sliding mount disc [3c] to which a plurality of pin levers [3d] is attached; and a plurality of release wires [3g] with T - shaped distal ends [3g’]. Each of the pin levers [3d] has two arms [3d’] at its distal end provisioned with holes to hold individual staple pins [3 e] . Each of the pin levers [3d] has a couplet of staple pins [3e] . Each of the pin levers [3b and 3d] in the top and bottom sliding mount discs [3a and 3c] is interconnected to each other. Said sliding mount discs [3a and 3c] with pin levers [3b and 3d] works in combination to facilitate sliding and positioning of the staple pins [3e] exactly. Referring to Figure 3, each of the release wires [3g] originates from proximal end of each of the pin levers [3b] . Each of the T - shaped distal ends [3g’] of the release wires [3g] passes through either side at distal ends of each of the pin levers [3d], where the couplet of staple pins [3e] are suspended which is subsequently released after stapling.

[0042] Referring to Figure 2, the top and bottom sliding mount discs [3a and 3c] are provided with a hole [3f] in the centre for the guide wire [2a] to pass through and get attached. The top sliding mount disc [3a] and bottom sliding mount disc [3c] are positioned parallel to each other to facilitate said sliding mount discs [3a and 3c] to move the pin levers [3b and 3d].

[0043] Referring to Figures 4 and 5, the female circumferential micro anastomotic vascular stapling device [4] comprises of a top sliding mount disc [4a] to which a plurality of pin levers [4b] is attached; a bottom sliding mount disc [4c] to which a plurality of pin levers [4d] is attached; a plurality of release wires [4g] with T - shaped distal ends [4g’]; and a sieve [4h] positioned at the base of the bottom sliding mount disc [4c]. Each of the pin levers [4d] has two arms [4d’] at its distal end provisioned with holes to hold individual staple pins [4e] . Each of the pin levers [4d] has a couplet of staple pins [4e] . Each of the pin levers [4b and 4d] in the top and bottom sliding mount discs [4a and 4c] is interconnected to each other. Said sliding mount discs [3a and 3c] with pin levers [3b and 3d] works in combination to facilitate sliding and positioning of the staple pins [4e] exactly. Referring to Figure 5, each of the release wires [4g] originates from proximal end of each of the pin levers [4b]. Each of the T - shaped distal ends [4g’] of the release wires [4g] passes through either side at distal ends of each of the pin levers [4d], where the couplet of staple pins [4e] are suspended which is subsequently released after stapling. The sieve [4h] collects the cut vessel wall tissue.

[0044] Referring to Figure 4, the top and bottom sliding mount discs [4a and 4c] are provided with a hole [4f] in the centre for the guide wire [2b] to pass through and get attached. The top sliding mount disc [4a] and bottom sliding mount disc [4c] are positioned parallel to each other to facilitate said sliding mount discs [4a and 4c] to move the pin levers [4b and 4d] .

[0045] For illustration purpose:

[0046] The specific embodiment discussed herein is merely illustrative to make and use the invention and do not delimit the scope of the invention.

[0047] Construction:

[0048] Referring to Figure 1, the catheter guided circumferential micro anastomotic vascular stapling device

[0100] comprises of a 1.25mm to 4mm diameter angiogram catheter [1] which houses a set of guide wires [2a and 2b]; a male circumferential micro anastomotic vascular stapling device [3]; and a female circumferential micro anastomotic vascular stapling device [4], The male circumferential micro anastomotic vascular stapling device [3] is attached to distal end of the guide wire [2a] and the female circumferential micro anastomotic vascular stapling device [4] is attached to distal end of the guide wire [2b]. The manoeuvring of the two guidewires [2a and 2b] along with the respective micro anastomotic vascular stapling devices [3 and 4] are controlled at proximal ends of the respective guide wires [2a and 2b] by a Surgeon through respective trigger knobs [5a and 5b].

[0049] Referring to Figures 2 and 3, the male circumferential micro anastomotic vascular stapling device [3] comprises of a top sliding mount disc [3a] to which eight pin levers [3b] are attached; a bottom sliding mount disc [3c] to which eight pin levers [3d] are attached; and eight release wires [3g] with T - shaped distal ends [3g’]. Each of the pin levers [3d] has two arms [3d’] at its distal end provisioned with holes to hold staple pins [3e] . Each of the pin levers [3d] has a couplet of staple pins [3e], that is eight pin levers [3d] have sixteen individual staple pins [3e] in total. Each of the pin levers [3b and 3d] in the top and bottom sliding mount discs [3a and 3c] is interconnected to each other. Each of the eight release wires [3g] originates from proximal end of each of the eight pin levers [3b]. Each of the T - shaped distal ends [3g’] of the eight release wires [3g] passes through either side at distal ends of each of the eight pin levers [3d], where the couplet of staple pins [3e] are suspended as depicted in Figure 3.

[0050] Referring to Figure 3, the top and bottom sliding mount discs [3a and 3c] are provided with a hole [3f] in the centre for the guide wire [2a] to pass through and get attached. The top sliding mount disc [3a] and bottom sliding mount disc [3c] are positioned parallel to each other to facilitate said sliding mount discs [3a and 3c] to move the pin levers [3b and 3d].

[0051] Referring to Figures 4 and 5, the female circumferential micro anastomotic vascular stapling device [4] comprises of a top sliding mount disc [4a] to which eight pin levers [4b] are attached; a bottom sliding mount disc [4c] to which eight pin levers [4d] are attached; eight release wires [4g] with T - shaped distal ends [4g’]; and a sieve [4h] positioned at the base of the bottom sliding mount disc [4c]. Each of the eight pin levers [4d] has two arms [4d’] at its distal end provisioned with holes to hold individual staple pins [4e] . Each of the eight pin levers [4d] has a couplet of staple pins [4e], that is eight pin levers [4d] have sixteen individual staple pins [4e] in total. Each of the pin levers [4b and 4d] in the top and bottom sliding mount discs [4a and 4c] is interconnected to each other. Each of the eight release wires [4g] originates from proximal end of each of the eight pin levers [4b]. Each of the T - shaped distal ends [4g’] of the eight release wires [4g] passes through either side at distal ends of each of the eight pin levers [4d], where the couplet of staple pins [4e] are suspended as depicted in Figure 5. The sieve [4h] collects the cut vessel wall tissue.

[0052] Referring to Figure 4, the top and bottom sliding mount discs [4a and 4c] are provided with a hole [4f] in the centre for the guide wire [2b] to pass through and get attached. The top sliding mount disc [4a] and bottom sliding mount disc [4c] are positioned parallel to each other to facilitate said sliding mount discs [4a and 4c] to move the pin levers [4b and 4d] .

[0053] It should be noted that, in an embodiment, the number of pin levers arranged may vary from 5 to 8 and the number of staple pins arranged may vary from 10 to 16.

[0054] For illustration purpose:

[0055] Working:

[0056] The Internal Thoracic Artery (ITA) is harvested by a Surgeon using a surgical robotic system. Referring to Figures 6 and 7, a 1 ,25mm to 4mm diameter angiogram catheter is introduced into the Internal Thoracic Artery (ITA) followed by the female circumferential micro anastomotic vascular stapling device [4] which is attached to distal end of the guide wire [2b] . Said female circumferential micro anastomotic vascular stapling device [4] is introduced under the X-ray guidance by the Surgeon to penetrate the Coronary Artery (CA) at the desired location for the perfect Anastomosis. The manoeuvring of the guidewire [2b] along with the female micro anastomotic vascular stapling device [4] is controlled at proximal end of the guide wire [2b] by the Surgeon through trigger knob [5b] . The female micro anastomotic vascular stapling device [4] penetrates the end of the Internal Thoracic Artery (ITA) and the Coronary Artery (CA) at a desired location with a trigger from the surgeon on the proximal end of the guide wire [2b] as depicted in Figure 7. The female micro anastomotic vascular stapling device [4] facilitates deployment process with appropriate trigger from the Surgeon to maneuver said stapling device [4] onto the tissues. Once triggered the female micro anastomotic vascular stapling device [4] deploys circumferentially on the vessel wall tissue and cuts said vessel wall tissue in a circular manner. The eight pin levers [4d] with sixteen individual staple pins [4e] facilitates the stapling process. The T - shaped distal ends [4g’] of the eight release wires [4g] passes through either side of each of the eight pin levers [4d] , where the couplet of staple pins [4e] are suspended to be released for stapling the tissues during anastomosis stapling process.

[0057] Referring to Figures 7 and 8, once the trigger knob [5a] at proximal end of the guide wire [2a] is triggered, the male circumferential micro anastomotic vascular stapling device [3] is maneuvered by the Surgeon to concentrically coincide with the female micro anastomotic vascular stapling device [4] to penetrate and facilitate deployment process wherein the eight pin levers [3d] with sixteen individual staple pins [3 e] deploys on the edges of the ITA and the CA.

[0058] When the trigger knobs [5a and 5b] are maneuvered by the Surgeon the sixteen individual staple pins [3e] of the male circumferential micro anastomotic vascular stapling device [3] are first brought in exact orientation with the sixteen individual staple pins [4e] of the female micro anastomotic vascular stapling device [4] . Said orientation process is achieved by a magnetic field of attraction induced between the sliding mount disc [3c] of the male circumferential micro anastomotic vascular stapling device [3] and the sliding mount disc [4a] of the female circumferential micro anastomotic vascular stapling device [4] . That is, the sliding mount disc [3c] with its one of the disc portion facing exactly the opposite disc portion of the sliding mount disc [4a]. Once the magnetic opposite field of attraction between the sliding mount discs [3 c and 4a] are achieved, subsequently, the sixteen individual staple pins [3e] of the male circumferential micro anastomotic vascular stapling device [3] and the sixteen individual staple pins [4e] of the female micro anastomotic vascular stapling device [4] are now oriented closer to each other. Further maneuvering of the respective trigger knobs [5a and 5b] move the sliding mount discs [3a and 4c] simultaneously towards each other which instantly initiates the stapling process anastomosing the tissues together.

[0059] Referring to Figures 9, 10 and 11, after coupling all the sixteen individual staple pins [3e and 4e], the trigger knobs [5a and 5b] are further maneuvered for the sliding mount discs [3a and 4c] to move away from each other in reverse direction which subsequently retracts the sixteen pin levers [3b, 3d and 4b, 4d] which further retracts the eight release wires [3g] attached to the pin levers [3b, 3d] and eight release wires [4g] attached to the pin levers [4b, 4d] and subsequently retracts the sieve [4h] which collects the cut tissue. Said retraction of the release wires [3g and 4g] attached to the pin levers [3, 3d and 4b, 4d] facilitate the release of all the sixteen individual staple pins [3e and 4e] circumferentially at the anastomosed tissue stapled intact in a circular pattern as depicted in Figure 12, said stapling is done without physical pull or push force. The staple pins are stapled intact in a circular pattern only on the tissue wall and not within the lumen.

[0060] Once the instant stapling process gets completed, the trigger knobs [5a and 5b] simultaneously activated by the Surgeon to retract both the male circumferential micro anastomotic vascular stapling device [3] and female circumferential micro anastomotic vascular stapling device [4] simultaneously and co-axially along with the cutout vessel wall tissue and retrieved back through the guide wires [2a and 2b] as depicted in Figure 11 and externalized outside the catheter [1], The entire procedure is performed within 3 minutes.

[0061] Thus the catheter guided circumferential micro anastomotic vascular stapling device according to the present invention performs anastomosis of the two blood vessels and provide streamline and steady blood flow.

Claims

AIM:

1. A catheter guided circumferential micro anastomotic vascular stapling device [100] comprises of: a catheter [1] which houses a set of guide wires [2a and 2b]; a male circumferential micro anastomotic vascular stapling device [3] attached to distal end of the guide wire [2a]; and a female circumferential micro anastomotic vascular stapling device [4] attached to distal end of the guide wire [2b] ; wherein the male circumferential micro anastomotic vascular stapling device[3] comprises of: a top sliding mount disc [3a] to which a plurality of pin levers [3b] is attached; a bottom sliding mount disc [3c] to which a plurality of pin levers [3d] is attached; and a plurality of release wires [3g] with T - shaped distal ends [3g’], wherein each of the pin levers [3d] has two arms [3d’] at its distal end to hold individual staple pins [3e], and wherein each of the pin levers [3b and 3d] in the top and bottom sliding mount discs [3a and 3c] is interconnected to each other to facilitate sliding and positioning of the staple pins [3e], wherein the female circumferential micro anastomotic vascular stapling device[4] comprises of: a top sliding mount disc [4a] to which a plurality of pin levers [4b] is attached; a bottom sliding mount disc [4c] to which a plurality of pin levers [4d] is attached; a plurality of release wires [4g] with T - shaped distal ends [4g’]; and a sieve [4h] positioned at the base of the bottom sliding mount disc [4c] to collect cut vessel wall tissue, wherein each of the pin levers [4d] has two arms [4d’] at its distal end provisioned to hold individual staple pins [4e], and wherein each of the pin levers [4b and 4d] in the top and bottom sliding mount discs [4a and 4c] is interconnected to each other to facilitate sliding and positioning of the staple pins [4e],wherein manoeuvring of the two guidewires [2a and 2b] along with the respective micro anastomotic vascular stapling devices [3 and 4] housed inside the catheter [1] are controlled at proximal ends of the respective guide wires [2a and 2b] through respective trigger knobs [5a and 5b], and wherein the female and male circumferential micro anastomotic vascular stapling devices [4 and 3] penetrates, deploys, staples and retracts along with the cut vessel wall tissue with the help of a manual trigger through the respective trigger knobs [5a and 5b].

2. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 1, wherein the top and bottom sliding mount discs [3a and 3c] of the male circumferential micro anastomotic vascular stapling device [3] are positioned parallel to each other to facilitate said sliding mount discs [3a and 3c] to move the pin levers [3b and 3d].

3. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 1, wherein the top and bottom sliding mount discs [4a and 4c] of the female circumferential micro anastomotic vascular stapling device [4] are positioned parallel to each other to facilitate said sliding mount discs [4a and 4c] to move the pin levers [4b and 4d] .

4. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 1, wherein each of the release wires [3g] of the male circumferential micro anastomotic vascular stapling device [3] originates from proximal end of each of the pin levers [3b] and each of the T - shaped distal ends [3g’] of the release wires [3g] passes through distal end at either side of each of the pin levers [3d], where couplet of staple pins [3e] are suspended which is subsequently released after stapling.

5. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 1, wherein each of the release wires [4g] of the female circumferential micro anastomotic vascular stapling device [4] originates from proximal end of each of the pin levers [4b] and each of the T - shaped distal ends [4g’] of the release wires [4g] passes through distal end at either side of each of the pin levers[4d], where couplet of staple pins [4e] are suspended which is subsequently released after stapling.

6. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 1, wherein when the trigger knobs [5 a and 5b] are maneuvered for deployment, the staple pins [3e] of the male circumferential micro anastomotic vascular stapling device [3] are placed in exact orientation with the staple pins [4e] of the female micro anastomotic vascular stapling device [4] and the sliding mount discs [3a and 4c] are moved simultaneously towards each other which instantly initiates the stapling of the staple pins [3e and 4e].

7. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 6, wherein said orientation is achieved by a magnetic field of attraction induced between the sliding mount disc [3c] of the male circumferential micro anastomotic vascular stapling device [3] and the sliding mount disc [4a] of the female circumferential micro anastomotic vascular stapling device [4] .

8. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 1, wherein when the trigger knobs [5 a and 5b] are maneuvered for retraction, the sliding mount discs [3a and 4c] move away from each other in reverse direction which subsequently retracts the pin levers [3b, 3d and 4b, 4d] which further retracts the release wires [3g and 4g] and subsequently retracts the sieve [4h] and finally retracts both the male and female circumferential micro anastomotic vascular stapling device [3 and 4] simultaneously and co-axially along with the cutout vessel wall tissue through the guide wires [2a and 2b] .

9. The catheter guided circumferential micro anastomotic vascular stapling device [100] as claimed in claim 8, wherein said retraction of the release wires [3g and 4g] attached to the pin levers [3, 3d and 4b, 4d] facilitates the release of all the staple pins [3e and 4e] circumferentially stapled intact in a circular pattern.

Images