Gastroesophageal junction soft tissue dilation device

Abstract

The utility model provides a kind of stomach esophagus connecting place soft tissue expansion device, including support device, the support device includes support sheet, the support sheet is curled fan-shaped sheet, its upper end circular arc radius is less than lower end circular arc radius, when operation, the support device is placed between diaphragm and esophagus stump, and the upper end circular arc radius of the support sheet is greater than esophagus stump radius.Effective shelter of support device obstructs esophagus stump when stomach operation, improves the accuracy and safety of surgical operation, reduces surgical trauma and the occurrence of complication.

Description

Technical Field

[0001] This utility model relates to the field of medical devices for gastric surgery, and in particular to a soft tissue expansion device for the gastroesophageal junction. Background Technology

[0002] In gastric cancer surgery, especially during total or partial gastrectomy, the soft tissue surrounding the esophagus below the diaphragm often obstructs the surgical procedure, increasing its difficulty and the risk of complications. Traditional surgical methods often require increasing the incision or retracting tissue to expose the surgical field, but these methods not only increase surgical trauma but may also damage surrounding tissues. Therefore, developing a device that can effectively obscure the soft tissue surrounding the esophagus below the diaphragm and improve the clarity of the surgical field is of significant clinical importance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a soft tissue expansion device at the gastroesophageal junction, which effectively blocks the obstruction of the esophageal stump during gastric surgery, improves the accuracy and safety of the surgical operation, and reduces surgical trauma and complications.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A soft tissue expansion device for the gastroesophageal junction includes a support device, which includes a support sheet. The support sheet is a rolled-up fan-shaped thin sheet with an upper arc radius smaller than the lower arc radius. During surgery, the support device is placed between the diaphragm and the esophageal stump, and the upper arc radius of the support sheet is larger than the radius of the esophageal stump.

[0006] Furthermore, the lower arc radius of the support piece is 2 to 5 times the upper arc radius of the support piece.

[0007] Furthermore, positioning holes are provided on both sides of the lower end of the support plate.

[0008] Furthermore, the support device also includes a main frame, which includes a metal wire main frame that matches the shape of the edge of the support piece, and the edges of the support piece are all fixed to the metal wire main frame.

[0009] Furthermore, the main frame also includes reinforcing metal wires arranged from top to bottom along the conical surface of the support piece, with the upper and lower ends of the reinforcing metal wires connected to the main frame of the metal wires.

[0010] Furthermore, the support device also includes traction rings, which are fixed to both sides of the lower end of the main frame.

[0011] Furthermore, the support device, after being wound into a cone shape, enters the body and also includes a conveying device. The conveying device includes a tubular body, and the support device wound into a cone shape is inserted into the distal end of the inner hole of the tubular body.

[0012] Furthermore, the conveying device also includes an ear handle, which is fixed to the proximal outer wall of the tubular body.

[0013] Furthermore, it also includes a push rod, which comprises a rod-shaped body with a diameter smaller than the inner diameter of the conveying device, and the rod-shaped body is slidably inserted into the inner diameter of the conveying device.

[0014] Furthermore, the push rod also includes a pull ring, which is fixed to the proximal end of the rod-shaped body.

[0015] The beneficial effects of this invention are as follows: placing the fan-shaped support device between the esophageal stump and the diaphragm effectively shields the soft tissue at the diaphragm, preventing these soft tissues from interfering with gastric surgery, improving the accuracy and safety of the surgical procedure, and reducing surgical trauma and complications. Attached Figure Description

[0016] Figure 1 This is a perspective view of a support device according to an embodiment of the present invention;

[0017] Figure 2 This is a perspective view of the support device according to another embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the support device of this utility model being placed between the diaphragm and the esophageal stump during surgery;

[0019] Figure 4 This is a schematic diagram of a conical support device according to an embodiment of the present invention;

[0020] Figure 5 This is an exploded view of the connection between the conical support device, the conveying device, and the push rod in an embodiment of this utility model.

[0021] Label Explanation:

[0022] 1. Support device; 2. Conveying device; 3. Push rod; 4. Esophagus; 5. Diaphragm; 6. Suture;

[0023] 11. Support plate; 12. Main frame; 13. Traction ring;

[0024] 111. Positioning hole;

[0025] 121. Main frame made of metal wire; 122. Reinforcing metal wire;

[0026] 21. Tubular body; 22. Ear stipe;

[0027] 31. Rod-shaped main body; 32. Pull ring;

[0028] 41. Esophageal stump. Detailed Implementation

[0029] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0030] Please refer to Figures 1 to 5 The embodiments provided by this utility model are as follows:

[0031] A soft tissue dilator at the gastroesophageal junction, please refer to... Figure 1 As shown, one embodiment includes a support device comprising a support sheet. The support sheet is a thin, rolled-up fan-shaped sheet with an upper arc radius smaller than its lower arc radius. The upper arc radius of the support sheet is larger than the radius of the esophageal stump. During surgery, the support device is placed between the diaphragm and the esophageal stump. Specifically, the upper end of the support sheet is placed near the connection between the esophageal stump and the diaphragm. The support sheet is rolled-up fan-shaped with its side opening facing downwards. The conical surface of the entire support sheet supports the soft tissue at the diaphragm upwards. The support sheet effectively isolates the soft tissue at the diaphragm from the esophageal stump and provides sufficient surgical space between the diaphragm and the esophageal stump, making gastric surgery less obstructed, improving the accuracy, safety, and success rate of gastric surgery, and reducing surgical trauma and complications.

[0032] Regarding the size of the support piece, specifically, the lower arc radius of the support piece is 2 to 5 times the upper arc radius of the support piece. The open support piece effectively separates the soft tissue at the diaphragm from the esophageal stump, improving the clarity and spaciousness of the surgical field of the stomach.

[0033] To facilitate the fixation of the support sheet during surgery, the support sheet has positioning holes on both sides of its lower end. Sutures are passed through the positioning holes and through the human tissue to fix the lower sides of the support sheet to the human tissue, thereby preventing the support sheet from shifting during surgery.

[0034] Alternatively, the support piece can also be positioned by using an external clamp to hold it.

[0035] In this embodiment, the support sheet is a plastic sheet or a medical biopolymer material sheet, such as a silicone sheet, a polyurethane (TPU) sheet, or a PE sheet. The support sheet can be unfolded into a rolled-up fan shape, such as... Figure 1 As shown, it can also be wound into a cone shape, such as... Figure 4 As shown.

[0036] A soft tissue dilator at the gastroesophageal junction, please refer to... Figure 2 As shown, another embodiment includes a support sheet in the shape of a curled fan and a main frame. The main frame includes a wire frame that matches the shape of the edge of the support sheet. The edges of the support sheet are fixed to the wire frame. The wire frame shapes the support sheet when it is opened. Specifically, the wire frame includes an upper arc wire, a lower arc wire, a left wire connecting the left side of the upper arc wire and the left side of the lower arc wire, and a right wire connecting the right side of the upper arc wire and the right side of the lower arc wire. The upper arc edge of the support sheet is fixed to the upper arc wire, the lower arc edge of the support sheet is fixed to the lower arc wire, the left edge of the support sheet is fixed to the left wire, and the right edge of the support sheet is fixed to the right wire.

[0037] To better shape the main frame into a curled, fan-shaped support plate, the main frame further includes reinforcing metal wires arranged from top to bottom along the conical surface of the support plate. The upper and lower ends of the reinforcing metal wires are connected to the main frame of the metal wires, thus reinforcing and shaping the conical surface in the middle of the support plate. Specifically, there are multiple reinforcing metal wires, evenly distributed on the conical side surface of the support plate.

[0038] Preferably, the main frame is made of medical-grade stainless steel or titanium alloy, which has good biocompatibility and mechanical strength.

[0039] To facilitate the fixing of the support device, the support device further includes traction rings, which are fixed to both sides of the lower end of the main frame. Figure 3 As shown, suture 6 passes through the hole of the traction ring and is sewn onto the human tissue to fix the support device and prevent it from shifting during surgery.

[0040] Alternatively, the support plate can also be positioned by using an external clamp to hold the support device.

[0041] In this embodiment, the support sheet is a plastic sheet, a medical biopolymer material sheet, or a cloth sheet, such as a silicone film, a polyurethane TPU film, a PE film, non-woven fabric, or gauze. The support device, assembled with the main frame, can unfold into a rolled-up fan shape, such as... Figure 2 As shown, it can also be wound into a cone shape, such as... Figure 4 As shown.

[0042] Based on the two embodiments described above, further, referring to... Figure 5As shown, the support device, after being wound into a cone shape, enters the body. To facilitate the entry of the support device, a delivery device is also included. The delivery device includes a tubular body, and the cone-shaped support device is inserted into the distal end of the inner hole of the tubular body. The distal end refers to the end that enters the human body, and the proximal end refers to the end closer to the hand. During surgery, the cone-shaped support device is inserted into the distal end of the inner hole of the delivery device, and the delivery device carries the surgical tube inserted through the abdominal cavity into the human body.

[0043] To facilitate hand gripping of the conveying device, the conveying device further includes an ear handle, which is fixed to the proximal outer wall of the tubular body. The ear handle is shaped as a plate, two symmetrically arranged plates, a semicircular ring, or two symmetrically arranged semicircular rings fixedly sleeved on the proximal outer wall of the tubular body, making it convenient for the hand to grip the conveying device.

[0044] The support device located in the inner hole at the far end of the conveying device can be clamped out by the clamping device or pushed out from the inner hole of the tubular body.

[0045] Furthermore, to facilitate the ejection of the support device from the conveying device, a push rod is also included. The push rod includes a rod-shaped body with a diameter smaller than the inner diameter of the conveying device. The rod-shaped body is slidably inserted into the inner hole of the conveying device, ejecting the support device located in the inner hole of the conveying device into the human body. Then, the support device naturally unfolds into a curled fan shape, ready for use.

[0046] To facilitate gripping the push rod, the push rod further includes a pull ring, which is fixed to the proximal end of the rod-shaped body for easy gripping and force application.

[0047] The procedure for operating the aforementioned soft tissue dilation device at the gastroesophageal junction during surgery is as follows:

[0048] Step 1: Wind the support device into a cone shape and insert it into the inner hole at the far end of the conveying device;

[0049] Step 2: Insert the delivery device into the human body through the abdominal surgical channel. Insert the push rod into the inner hole of the delivery device. The push rod pushes the support device out of the delivery device. At this time, the support device is located inside the human body and is in an open, curled fan shape due to its own elasticity.

[0050] Step 3: Using an external adjustment device, such as a clamp, place the curled fan-shaped support device between the esophageal stump and the diaphragm, so that the upper arc of the support device is located at the connection between the esophageal stump and the diaphragm. The conical surface of the support device will spread the soft tissue at the diaphragm to prevent the soft tissue at the diaphragm from obstructing the surgical field of the stomach.

[0051] Step 4: Position the lower end of the support device by clamping it with an external clamp, or position the lower end of the support device by sewing it onto the human tissue through the suture 6 that passes through the traction ring or positioning hole.

[0052] Step 5 involves gastric surgery;

[0053] Step 6: After the gastric surgery, locate the support device and use a clamp to remove the support device from the surgical opening made during the abdominal surgery.

[0054] In summary, the beneficial effects of the soft tissue dilation device at the gastroesophageal junction provided by this utility model are as follows:

[0055] 1. The use of a curled fan-shaped support device effectively supports and isolates the diaphragm soft tissue at the esophageal stump, providing ample surgical space and field of vision for gastric surgery, thereby improving surgical safety and success rate.

[0056] 2. The support device uses a separate shielding plate, or the shielding plate is connected to the main frame. It is elastic and can not only open into a curled fan shape, but also roll into a cone shape to reduce the volume.

[0057] 3. After the support device is placed between the esophageal stump and the diaphragm, the lower end of the support device is fixed by clamping it with an external clamp or by suturing it to human tissue, making the positioning operation convenient.

[0058] 4. By coordinating the delivery device and the push rod, the conical support device is placed inside the human body, which reduces harm to the body in the early stages of gastric surgery and improves the safety and success rate of the surgery.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A soft tissue dilation device for the gastroesophageal junction, characterized in that, The device includes a support plate, which is a rolled-up fan-shaped thin sheet with an upper arc radius smaller than the lower arc radius. During surgery, the support device is placed between the diaphragm and the esophageal stump, and the upper arc radius of the support plate is larger than the radius of the esophageal stump.

2. The soft tissue dilation device at the gastroesophageal junction according to claim 1, characterized in that, The lower arc radius of the support piece is 2 to 5 times the upper arc radius of the support piece.

3. The soft tissue dilation device at the gastroesophageal junction according to claim 1, characterized in that, Positioning holes are provided on both sides of the lower end of the support plate.

4. The soft tissue dilation device at the gastroesophageal junction according to claim 1, characterized in that, The support device also includes a main frame, which includes a metal wire main frame that matches the shape of the edge of the support piece, and the edges of the support piece are all fixed to the metal wire main frame.

5. The soft tissue dilation device at the gastroesophageal junction according to claim 4, characterized in that, The main frame also includes reinforcing metal wires arranged from top to bottom along the conical surface of the support plate, with the upper and lower ends of the reinforcing metal wires connected to the main frame of the metal wires.

6. The soft tissue dilation device at the gastroesophageal junction according to claim 4 or 5, characterized in that, The support device also includes traction rings, which are fixed to both sides of the lower end of the main frame.

7. The soft tissue dilation device at the gastroesophageal junction according to any one of claims 1 to 5, characterized in that, The support device, after being wound into a cone shape, enters the body and also includes a conveying device. The conveying device includes a tubular body, and the support device, wound into a cone shape, is inserted into the distal end of the inner hole of the tubular body.

8. The soft tissue dilation device at the gastroesophageal junction according to claim 7, characterized in that, The conveying device also includes an ear handle, which is fixed to the proximal outer wall of the tubular body.

9. The soft tissue dilation device at the gastroesophageal junction according to claim 7, characterized in that, It also includes a push rod, which has a rod-shaped body with a diameter smaller than the inner diameter of the conveying device, and the rod-shaped body is slidably inserted into the inner diameter of the conveying device.

10. The soft tissue dilation device at the gastroesophageal junction according to claim 9, characterized in that, The push rod also includes a pull ring, which is fixed to the proximal end of the rod-shaped body.

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