Tubular anastomat

Abstract

The utility model belongs to the technical field of intestinal anastomat, specifically relates to a kind of tubular anastomat, it includes holding part, extension, control part, nail bin, adjusting part and nail cover;The one end of extension is connected with holding part, and the other end is fixedly connected with nail bin;The one end of control part is sequentially passed through holding part, extension and then is connected with nail bin;The adjusting part is detachably connected with nail cover after passing through extension;The adjusting part includes adjusting rod and positioning piece;The adjusting rod is slidably connected with holding part;The one end of positioning piece is connected with adjusting rod after passing through holding part. The length of adjusting rod extending holding part can be changed according to actual situation of patient, so that adjusting rod and nail cover can reach suitable position to be effectively connected, and it is convenient to use anastomat to joint patient intestinal tract during operation, artificial suture is not needed to be pulled down in the anus outside, operation time is shortened, and postoperative complication probability is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of intestinal anastomosis device technology, specifically relating to a tubular anastomosis device. Background Technology

[0002] In surgeries such as radical resection of colorectal cancer, repair of intestinal obstruction / perforation, colostomy repositioning, and inflammatory bowel disease, an intestinal anastomosis device is often required to reconnect the patient's intestines.

[0003] The intestinal anastomosis device works similarly to a stapler, its core being the simultaneous stapling and cutting. The instrument is pre-loaded with multiple rows of titanium alloy staples. When the surgeon operates the handle, these staples penetrate the intestinal wall tissue and bend and lock on the opposite side, firmly stapled the two sections of intestine together. Simultaneously, a ring-shaped blade within the instrument extends, removing excess tissue inside the stapled loop to create a patent anastomosis.

[0004] Compared to traditional manual suturing, intestinal anastomosis devices reduce the 30-50 minutes of manual suturing to just a few minutes, significantly shortening the operation time. The mechanical staples provide uniform density and a smooth anastomotic wall, effectively reducing the risk of postoperative anastomotic leakage and bleeding. Suitable for minimally invasive surgeries such as laparoscopy, they minimize tissue damage and promote rapid postoperative recovery for patients.

[0005] During the surgery, the anvil at the proximal end of the colon needs to be connected to the anastomosis control rod via an adjusting rod and pulled to the distal rectum for anastomosis. When the patient's pelvis is too narrow or the pelvic space is small, the laparoscopic pelvic surgical field is limited. The main body of the anastomosis device cannot pass through the anus to the pelvic inlet and then into the abdominal cavity via the connecting rod of the existing length and the subsequent adjusting rod. Therefore, it cannot be connected to the anvil in the proximal colon and pulled to the distal rectum at the anastomosis device cartridge for anastomosis. The proximal colon can only be pulled down and manually sutured outside the anus. Manual suturing can lead to the loss of some organs in the distal rectum. Postoperative problems may include anastomotic leakage, anastomotic stenosis, postoperative pain and bleeding. Utility Model Content

[0006] To address the aforementioned issues, this application discloses a tubular anastomosis device.

[0007] A tubular stapler includes a holding part, an extension part, a control part, a staple cartridge, an adjustment part, and an anvil. One end of the extension part is connected to the holding part, and the other end is fixedly connected to the staple cartridge. One end of the control part passes through the holding part and the extension part in sequence and is connected to the staple cartridge. The adjustment part passes through the extension part and is detachably connected to the anvil. The adjustment part includes an adjustment rod and a positioning element. The adjustment rod is slidably connected to the holding part. One end of the positioning element passes through the holding part and is connected to the adjustment rod.

[0008] Furthermore, the adjustment part also includes a knob, a fixed rod, and a moving rod; the knob is rotatably connected to the grip; one end of the fixed rod is fixedly connected to the knob, and the other end is slidably connected to the moving rod; one end of the adjustment rod is threadedly connected to the moving rod, and the other end is detachably connected to the anti-nail cover.

[0009] Furthermore, the staple cartridge has a working chamber inside; the working chamber is equipped with a moving block and a driving component; the moving block moves inside the working chamber under the drive of the driving component.

[0010] Furthermore, the control unit includes a control handle, a drive chamber, a drive block, and a guide tube; one end of the control handle is hinged to the gripping part; the drive chamber is fixedly connected to the side wall of the gripping part; one end of the drive block is inserted into the interior of the drive chamber; one end of the guide tube communicates with the drive chamber, and the other end passes through the gripping part and the extension part in sequence before connecting to the staple cartridge.

[0011] The beneficial effects of this utility model are:

[0012] The extension rod is slidably connected to the handle, and the length of the extension rod extending from the handle can be adjusted according to the patient's actual situation. This allows the adjustment rod and the anvil to reach the appropriate position for effective connection, facilitating the use of a stapler to join the patient's intestine during surgery. This eliminates the need to pull down the proximal colon for manual suturing outside the anus, shortening the operation time and reducing the chance of postoperative complications.

[0013] During the surgery, there is no need to change the stapler of different lengths; only the length of the extension of the adjusting rod to the handle needs to be changed, which shortens the operation time and reduces the clutter of instruments on the operating table. Attached Figure Description

[0014] Figure 1 A perspective view of a tubular anastomosis device that implements this utility model;

[0015] Figure 2 A front view of a tubular anastomosis device that implements this utility model;

[0016] Figure 3 A top view of a tubular anastomosis device that implements this utility model;

[0017] Figure 4 for Figure 3 Sectional view along axis AA;

[0018] Figure 5 for Figure 3 BB-direction sectional view;

[0019] Figure 6 A cross-sectional view of a staple cartridge that implements this utility model;

[0020] Figure 7A cross-sectional view of a gripping part that implements this utility model;

[0021] In the diagram, 1 is the grip; 2 is the extension; 3 is the control unit; 4 is the staple cartridge; 5 is the staple cover; 6 is the adjustment unit; 11 is the sliding groove; 12 is the control groove; 31 is the control handle; 32 is the limiting element; 33 is the drive chamber; 34 is the drive block; 35 is the guide tube; 41 is the working chamber; 42 is the moving block; 43 is the drive element; 44 is the staple holder; 45 is the positioning staple; 46 is the cutter; 431 is the driven chamber; 432 is the drive rod; 61 is the knob; 62 is the fixed rod; 63 is the moving rod; 64 is the adjustment rod; 65 is the slider; and 66 is the positioning element. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0024] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0025] In this document, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In this document, unless otherwise specified or stated, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] like Figure 1-7 The tubular stapler shown includes a holding part 1, an extension part 2, a control part 3, a staple cartridge 4, an adjustment part 6, and an anvil cover 5. One end of the extension part 2 is connected to the holding part 1, and the other end is fixedly connected to the staple cartridge 4. One end of the control part 3 passes through the holding part 1 and the extension part 2 in sequence and is connected to the staple cartridge 4. The adjustment part 6 passes through the extension part 2 and is detachably connected to the anvil cover 5. The adjustment part 6 includes an adjustment rod 64 and a positioning member 66. One end of the positioning member 66 passes through the holding part 1 and is connected to the adjustment rod 64.

[0028] The extension rod is slidably connected to the holding part 1, and the length of the adjustment rod 64 extending out of the holding part 1 can be changed according to the actual situation of the patient, so that the adjustment rod 64 and the anvil cover 5 can reach the appropriate position for effective connection. This facilitates the use of a stapler to join the patient's intestine during the operation, eliminating the need to pull down the proximal end of the colon for manual suturing outside the anus, shortening the operation time, and reducing the chance of postoperative complications.

[0029] During the operation, there is no need to change the stapler of different lengths. Only the length of the extension of the adjusting rod 64 to the holding part 1 needs to be changed, which shortens the operation time and reduces the chaos of instruments on the operating table.

[0030] like Figure 4-5 As shown, the extension 2 also includes a slider 65; one end of the slider 65 is fixedly connected to the extension rod, and the other end is connected to the positioning member 66. The slider 65 slides along the gripping part 1, and one end of the positioning member 66 is hinged to the slider 65. Specifically... Figure 4 As shown, at this time, the end of the positioning member 66 away from the slider 65 abuts against the holding part 1. The positioning block pulls the slider 65 away from the holding part 1, so that the outer wall of the extension rod presses against the inner wall of the holding part 1, increasing the friction between the extension rod and the holding part 1, and locking the positional relationship between the extension rod and the holding part 1 through the friction.

[0031] Furthermore, the side wall of the grip 1 is provided with a control groove 12 and a sliding groove 11 that are interconnected; the slider 65 moves along the sliding groove 11; the positioning member 66 is detachably connected to the control groove 12. The purpose of this design is that when the positioning block abuts against the inner wall of the control groove 12, the positioning block sinks into the surface of the grip 1, reducing the risk of accidental contact.

[0032] like Figure 4-5As shown, the adjustment part 6 includes a knob 61, a fixed rod 62, a moving rod 63, and an adjusting rod 64. The knob 61 is rotatably connected to the grip part 1. One end of the fixed rod 62 is fixedly connected to the knob 61, and the other end is slidably connected to the moving rod 63. One end of the adjusting rod 64 is threadedly connected to the moving rod 63, and the other end is detachably connected to the anti-nail cover 5. Rotating the knob 61 drives the fixed rod 62 and the moving rod 63 to rotate, thereby causing the adjusting rod 64 to move linearly along its axis.

[0033] Preferably, the adjusting rod 64 is a flexible rod. The extension 2 has a curved section in the middle, and a guide tube is provided inside the curved section, so that the adjusting rod 64 can be bent inside the guide tube.

[0034] Specifically, the outer wall of the adjusting rod 64 is provided with a guide block, and the inner wall of the extension rod is provided with a guide groove, the axis of which is parallel to the axis of the adjusting rod 64. When the knob 61 is rotated, the fixed rod 62 and the moving rod 63 rotate synchronously, driving the adjusting rod 64 to move linearly along the guide groove.

[0035] like Figure 5 As shown, a first guide member is provided on the side wall of the moving rod 63 away from the adjusting rod 64; a second guide member is provided on the end of the fixed rod 62 away from the knob 61; the first guide member and the second guide member are slidably connected. The purpose of this design is to keep the fixed rod 62 and the moving rod 63 rotating synchronously.

[0036] The fixed rod 62 and the moving rod 63 form a telescopic rod structure. When the extension rod gradually extends out of the holding part 1, the moving rod 63 moves with the extension rod, causing the telescopic rod structure composed of the fixed rod 62 and the moving rod 63 to gradually lengthen.

[0037] like Figure 6 As shown, the staple cartridge 4 has a working chamber 41 inside; the working chamber 41 is equipped with a moving block 42 and a driving member 43; the moving block 42 moves inside the working chamber 41 under the drive of the driving member 43. During the operation, the staple cover 5 and the staple cartridge 4 are respectively placed inside the intestine to be joined, and then the knob 61 is turned to drive the intestine to be joined to close. Then, the moving block 42 is driven by the driving member 43 to move, driving multiple positioning staples 45 to extend out of the working chamber 41 and penetrate the intestinal wall tissue, and bend and lock on the opposite side, firmly staple the two sections of intestine together.

[0038] Specifically, the end of the moving block 42 away from the drive component 43 is provided with a pin holder 44. The pin holders 44 are arranged in a circle around the axis of the pin magazine 4, and a positioning pin 45 can be detachably connected to each pin holder 44.

[0039] The end of the moving block 42 furthest from the drive component 43 is fixedly connected to a cutter 46. Simultaneously with the staple insertion, the annular blade in the instrument will extend to remove excess tissue inside the staple ring, creating a clear anastomosis.

[0040] Specifically, the drive component 43 includes a driven chamber 431 and a drive rod 432. One end of the drive rod 432 is inserted into the interior of the driven chamber 431, and the other end is connected to the moving block 42. A rubber piston is provided at the end of the drive rod 432 that is inserted into the driven chamber 431.

[0041] like Figure 4 , 7 As shown, the control unit 3 includes a control handle 31, a drive chamber 33, a drive block 34, and a conduit 35. One end of the control handle 31 is hinged to the gripping part 1. The drive chamber 33 is fixedly connected to the side wall of the gripping part 1. One end of the drive block 34 is inserted into the interior of the drive chamber 33. One end of the conduit 35 is connected to the drive chamber 33, and the other end passes through the gripping part 1 and the extension part 2 in sequence before connecting to the driven chamber 431. In use, pressing the control handle 31 pushes the drive block 34 toward the interior of the drive chamber 33, pushing the liquid in the drive chamber 33 into the interior of the driven chamber 431 through the connecting tube, thereby pushing the drive rod 432 to extend out of the driven chamber 431, which in turn pushes the moving block 42 to move away from the gripping part 1, causing multiple positioning pins 45 to extend out of the working chamber 41 and penetrate the intestinal wall tissue, and then bend and lock on the opposite side, firmly nailing the two sections of the intestine together.

[0042] Furthermore, the control unit 3 also includes a limiting member 32; one end of the limiting member 32 is hinged to the holding part 1, and the other end is detachably connected to the control handle 31. The function of the limiting member 32 is to restrict the position of the control handle 31 and prevent accidental contact that would cause the positioning pins 45 to extend. In use, the pin cover 5 and the pin magazine 4 are respectively placed inside the intestine to be joined, and then the knob 61 is turned to drive the intestine to be joined to close, releasing the connection between the limiting member 32 and the control handle 31. Then, the control handle 31 is pressed, which drives the moving block 42 to move through the driving member 43, causing multiple positioning pins 45 to extend out of the working chamber 41 and penetrate the intestinal wall tissue, and bend and lock on the opposite side, firmly nailing the two sections of intestine together.

[0043] The above description is merely a specific embodiment of this application. Under the guidance of the above teachings, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this application, and the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tubular stapler, comprising a holding portion, an extension portion, a control portion, a staple cartridge, an adjustment portion, and an anvil; one end of the extension portion is connected to the holding portion, and the other end is fixedly connected to the staple cartridge, characterized in that, One end of the control unit passes through the gripping part and the extension part in sequence and is connected to the nail cartridge; the adjustment part passes through the extension part and is detachably connected to the anvil cover; the adjustment part includes an adjustment rod and a positioning member; the adjustment rod is slidably connected to the gripping part; one end of the positioning member passes through the gripping part and is connected to the adjustment rod.

2. The tubular anastomosis device according to claim 1, characterized in that, The adjustment part also includes a slider; one end of the slider is connected to the adjustment rod, and the other end is connected to the positioning element.

3. A tubular anastomosis device according to claim 2, characterized in that, The side wall of the gripping part is provided with a control groove and a sliding groove that are interconnected; the slider moves along the sliding groove; the positioning element is detachably connected to the control groove.

4. A tubular anastomosis device according to claim 1, characterized in that, The adjustment part also includes a knob, a fixed rod, and a moving rod; the knob is rotatably connected to the grip; one end of the fixed rod is fixedly connected to the knob, and the other end is slidably connected to the moving rod; one end of the adjustment rod is threadedly connected to the moving rod, and the other end is detachably connected to the anti-nail cover.

5. A tubular anastomosis device according to claim 4, characterized in that, The moving rod has a first guide on the side wall away from the adjusting rod; the fixed rod has a second guide on the end away from the knob; the first guide and the second guide are slidably connected.

6. A tubular anastomosis device according to claim 1, characterized in that, The staple cartridge has a working chamber inside; the working chamber is equipped with a moving block and a driving component; the moving block moves inside the working chamber under the drive of the driving component.

7. A tubular anastomosis device according to claim 6, characterized in that, The moving block is provided with a pin holder at the end away from the driving component; a positioning pin is detachably connected to the pin holder.

8. A tubular anastomosis device according to claim 6, characterized in that, A cutter is fixedly connected to the end of the moving block away from the driving component.

9. A tubular anastomosis device according to claim 1, characterized in that, The control unit includes a control handle, a drive chamber, a drive block, and a guide tube; one end of the control handle is hinged to the grip; the drive chamber is fixedly connected to the side wall of the grip; one end of the drive block is inserted into the interior of the drive chamber; one end of the guide tube communicates with the drive chamber, and the other end passes through the grip and the extension in sequence before connecting to the staple cartridge.

10. A tubular anastomosis device according to claim 9, characterized in that, The control unit also includes a limiting member; one end of the limiting member is hinged to the gripping part, and the other end is detachably connected to the control handle.

Images