A laparoscopic pelvic ureteral anastomosis device

Abstract

The utility model relates to the technical field of medical devices, and discloses a laparoscopic pelvic ureteral anastomosis device, comprising a head end and an anastomosis mechanism slidably mounted on the surface of the head end, and a hollow cylinder covered and mounted on the surface of the anastomosis mechanism. The laparoscopic pelvic ureteral anastomosis device, through the cooperation between the head end and the anastomosis mechanism, does not require the doctor to manually sew the two ends of the ureter before anastomosis. The device is inserted into the ureter, so that the head end is in the ureter to be anastomosed, and then the handle is held to pull the hollow cylinder to slide backward and flow out of the first slider and the second slider, so that the first slider is located on the inner wall of the ureter to be anastomosed and the second slider is located on the inner wall of the other ureter, and then the push rod is pushed to make the movable column drive the first guide rod and the second guide rod to move, so that the surfaces of the first slider and the second slider open the ureter, so that one end of the two ureters is concave to the side opposite to the first slider and the second slider.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a laparoscopic ureteral anastomosis device. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical technique that uses laparoscopic instruments to operate in the abdominal cavity, reducing postoperative pain and recovery time. In laparoscopic surgery, ureteral anastomosis is often required, which requires suturing the two ends of the ureter and leaving a small opening to repair diseases such as ureteral rupture and ureteropelvic junction stenosis.

[0003] Among them, the Chinese patent (CN219000416U) discloses a laparoscopic pelvic ureteral stapler, including a stapler body, a nail seat and a nail magazine are arranged on the stapler body, the nail seat includes a nail seat surface and a screw-in rod, the screw-in rod is fixedly connected to the nail seat surface, and the screw-in rod is arranged in a horizontal direction, and the connection surface between the nail seat surface and the screw-in rod is arranged in an inclined surface; the nail magazine is provided with a nail magazine opening and a screw-in rod locking hole, the opening end of the screw-in rod locking hole is arranged at the nail magazine opening, the screw-in rod locking hole is arranged in a horizontal direction, the nail magazine opening is arranged in an inclined opening, and the nail seat surface is movably matched and fitted with the nail magazine opening. The nail magazine and the nail seat of the utility model are both arranged at a 45° inclined surface, thereby effectively expanding the diameter and area of ​​the anastomotic opening. After the anastomotic opening is anastomosed, the defect problem of ureteral orifice stenosis after surgery can be prevented, thereby improving the success rate of the operation.

[0004] At present, the laparoscopic ureteropelvic anastomosis devices on the market have the same disadvantages as the above-mentioned comparative documents: when performing ureteral anastomosis, it is necessary to first suture the two ends, remove the head end of the anastomosis device, insert it into the ureter, and then insert the anastomosis device from the other end of the ureter to connect with the head end of the anastomosis device. This operation is relatively cumbersome and increases the time of ureteral anastomosis. For this reason, we have designed a laparoscopic ureteropelvic anastomosis device. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a laparoscopic pelvic ureteral stapler which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problem of complicated operation and increased time for ureteral anastomosis proposed in the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a laparoscopic pelvic ureteral stapler, comprising a head end and an anastomosis mechanism slidably mounted on the surface of the head end, and a hollow cylinder covered and mounted on the surface of the anastomosis mechanism;

[0007] The head end comprises a round head, a handle is fixedly connected to the center of the top of the round head, and T-shaped blocks are fixedly connected to the top of the round head all around;

[0008] The anastomosis mechanism includes a movable column slidably assembled on the surface of the handle and four first sliders slidably connected to the surface of the T-block, and four nail magazine bodies fixedly installed on the top of the four first sliders, one side of the surface of the movable column is rotatably connected to four first guide rods, the other ends of the four first guide rods are rotatably connected to one side of the surface of the four first sliders, the other sides of the surfaces of the four first sliders are fixedly connected to four U-shaped frames, the surfaces of the four U-shaped frames are slidably connected to four second sliders, one side of the four second sliders are rotatably connected to four second guide rods, one end of the four second guide rods are rotatably connected to four movable blocks, and the surfaces of the four movable blocks are slidably connected to the other side of the surface of the movable column.

[0009] Optionally, four cylinders are fixedly connected to the tops of the four movable blocks, and a ring is fixedly connected to the tops of the four cylinders, and the ring passes through one end of the hollow cylinder.

[0010] Optionally, a push rod is fixedly connected to the top of the movable column, a ring is slidably connected to the surface of the push rod, and an inner wall of the push rod is slidably connected to the surface of the handle.

[0011] Optionally, the bottom of the second sliding block is the same size as the top of the nail magazine body.

[0012] Optionally, the inner wall of the hollow cylinder is slidably connected to the surfaces of the first slider and the second slider, and one end of the hollow cylinder is provided with a rounded corner.

[0013] The utility model provides a laparoscopic pelvic ureteral stapler, which has the following beneficial effects:

[0014] The laparoscopic pelvic ureteral stapler cooperates with the anastomosis mechanism, and the doctor does not need to manually sew the two ends of the ureter before anastomosis. The device is inserted into the ureter, so that the head end is in the ureter to be anastomosed, and then the handle is held to pull the hollow cylinder to make it slide backward and flow out of the first slider and the second slider, so that the first slider is located on the inner wall of the ureter to be anastomosed and the second slider is located on the inner wall of the other ureter, and then the push rod is pushed to make the movable column drive the first guide rod and the second guide rod to move, so that the surfaces of the first slider and the second slider open the ureter, so that one end of the two ureters is concave to the side opposite to the first slider and the second slider, and then the ring is pushed to drive the cylinder to move and then drive the connecting block to move, so that the second slider descends and fits the top of the staple cartridge body to complete the anastomosis of the ureter, and there is no need to sew the ureter before anastomosis, thereby speeding up the time of anastomosing the ureter of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the movable column of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the anastomosis mechanism of the utility model.

[0019] In the figure: 1, head end; 101, round head; 102, handle; 103, T-block; 2, anastomosis mechanism; 201, movable column; 202, first slider; 203, staple cartridge body; 204, first guide rod; 205, U-shaped frame; 206, second slider; 207, second guide rod; 208, movable block; 3, hollow cylinder; 4, cylinder; 5, ring; 6, push rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4The utility model provides a technical solution: a laparoscopic pelvic ureteral anastomosis device, comprising a head end 1 and an anastomosis mechanism 2 slidably mounted on the surface of the head end 1, and a hollow cylinder 3 covering and installed on the surface of the anastomosis mechanism 2, the head end 1 comprises a round head 101, a handle 102 is fixedly connected to the center of the top of the round head 101, and T-blocks 103 are fixedly connected to the top of the round head 101. The anastomosis mechanism 2 comprises a movable column 201 slidably mounted on the surface of the handle 102 and four first sliders 202 slidably connected to the surface of the T-block 103, and a fixed The four nail magazine bodies 203 are fixedly installed on the tops of the four first sliders 202, one side of the surface of the movable column 201 is rotatably connected to the four first guide rods 204, the other ends of the four first guide rods 204 are rotatably connected to the one side of the surface of the four first sliders 202, the other sides of the surfaces of the four first sliders 202 are fixedly connected to four U-shaped frames 205, the surfaces of the four U-shaped frames 205 are slidably connected to four second sliders 206, one side of the four second sliders 206 is rotatably connected to four second guide rods 207, one end of the four second guide rods 207 is rotatably connected to Four movable blocks 208 are connected, and the surfaces of the four movable blocks 208 are slidably connected to the other side of the surface of the movable column 201. Through the cooperation between the head end 1 and the anastomosis mechanism 2, the doctor does not need to manually sew the two ends of the ureter before anastomosis. The device is inserted into the ureter, so that the head end 1 is in the ureter to be anastomosed, and then the handle 102 is held to pull the hollow cylinder 3 to slide backward and flow out of the first slider 202 and the second slider 206, so that the first slider 202 is on the inner wall of the ureter to be anastomosed and the second slider 206 is on the inner wall of the other ureter, and then the first slider 202 is pushed to the inner wall of the ureter to be anastomosed. The movable push rod 6 causes the movable column 201 to drive the first guide rod 204 and the second guide rod 207 to move, thereby causing the surfaces of the first slider 202 and the second slider 206 to open the ureter, so that one end of the two ureters is concave to the side opposite to the first slider 202 and the second slider 206, and then the ring 5 is pushed to drive the cylinder 4 to move, thereby driving the connecting block to move, so that the second slider 206 descends and fits with the top of the staple cartridge body 203 to complete the anastomosis of the ureter, and there is no need to suture the ureter before the anastomosis, which speeds up the time for anastomosing the ureter by the device.

[0022] Furthermore, four cylinders 4 are fixedly connected to the tops of the four movable blocks 208, and a ring 5 is fixedly connected to the tops of the four cylinders 4. The ring 5 passes through one end of the hollow cylinder 3, wherein the ring 5 can push the four cylinders 4 to move at the same time.

[0023] Furthermore, a push rod 6 is fixedly connected to the top of the movable column 201, a ring 5 is slidably connected to the surface of the push rod 6, and an inner wall of the push rod 6 is slidably connected to the surface of the handle 102, wherein the push rod 6 can slide on the surface of the handle 102 and move the movable column 201.

[0024] Furthermore, the bottom of the second slider 206 is the same size as the top of the staple cartridge body 203 , wherein the bottom of the second slider 206 is the same size as the staple cartridge body 203 , so that the ureter can be anastomosed better.

[0025] Furthermore, the inner wall of the hollow cylinder 3 is slidably connected to the surfaces of the first slider 202 and the second slider 206, and one end of the hollow cylinder 3 is provided with a rounded corner, wherein the rounded corner at one end of the hollow cylinder 3 can reduce the patient's discomfort when inserting the patient's ureter.

[0026] In the utility model, the working steps of the device are as follows:

[0027] Step 1: Before anastomosis, the doctor does not need to manually suture the two ends of the ureter. The device is inserted into the ureter so that the head end 1 is in the ureter to be anastomosed. Then, the handle 102 is held to pull the hollow cylinder 3 to make it slide backward and flow out of the first slider 202 and the second slider 206, so that the first slider 202 is located on the inner wall of the ureter to be anastomosed and the second slider 206 is located on the inner wall of the other ureter. Then, the push rod 6 is pushed to make the movable column 201 drive the first guide rod 204 and the second guide rod 207 to move, thereby making the surfaces of the first slider 202 and the second slider 206 open the ureter, so that one end of the two ureters is concave to the side opposite to the first slider 202 and the second slider 206, and then the ring 5 is pushed to drive the cylinder 4 to move and then drive the connecting block to move, so that the second slider 206 descends and fits the top of the nail magazine body 203 to complete the anastomosis of the ureter.

[0028] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0029] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laparoscopic pelvic ureteral stapler, characterized in that: It comprises a head end (1), an anastomosis mechanism (2) slidably mounted on the surface of the head end (1), and a hollow cylinder (3) covering and mounted on the surface of the anastomosis mechanism (2); The head end (1) comprises a round head (101), a handle (102) is fixedly connected to the center of the top of the round head (101), and T-shaped blocks (103) are fixedly connected to the four sides of the top of the round head (101); The anastomosis mechanism (2) comprises a movable column (201) slidably mounted on the surface of the handle (102), four first sliders (202) slidably connected to the surface of the T-block (103), and four staple cartridge bodies (203) fixedly mounted on the tops of the four first sliders (202), one side of the surface of the movable column (201) is rotatably connected to four first guide rods (204), the other ends of the four first guide rods (204) are rotatably connected to one side of the surface of the four first sliders (202), the other sides of the surfaces of the four first sliders (202) are fixedly connected to four U-shaped frames (205), the surfaces of the four U-shaped frames (205) are slidably connected to four second sliders (206), one side of the four second sliders (206) are rotatably connected to four second guide rods (207), one end of the four second guide rods (207) are rotatably connected to four movable blocks (208), and the surfaces of the four movable blocks (208) are slidably connected to the other side of the surface of the movable column (201).

2. The laparoscopic pelvic ureteral stapler according to claim 1, characterized in that: The tops of the four movable blocks (208) are fixedly connected to four cylinders (4), and the tops of the four cylinders (4) are fixedly connected to a ring (5), which passes through one end of the hollow cylinder (3).

3. The laparoscopic pelvic ureteral stapler according to claim 1, characterized in that: The top of the movable column (201) is fixedly connected to a push rod, the surface of the push rod is slidably connected to a ring (5), and the inner wall of the push rod is slidably connected to the surface of the handle (102).

4. The laparoscopic pelvic ureteral stapler according to claim 1, characterized in that: The bottom of the second sliding block (206) is the same size as the top of the nail magazine body (203).

5. The laparoscopic pelvic ureteral stapler according to claim 1, characterized in that: The inner wall of the hollow cylinder (3) is slidably connected to the surfaces of the first sliding block (202) and the second sliding block (206), and one end of the hollow cylinder (3) is provided with a rounded corner.

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