CN201668444U - Invasive Reverse Titanium Clip - Google Patents

Abstract

The utility model relates to an intrusive reverse titanium clip, which comprises a reverse titanium clip. It is a clamping section, the two ends of the clamping section are bent inwards, and the two ends are provided with at least one engaging sawtooth. The utility model can realize multi-level and multi-degree-of-freedom free release, effectively realize the closure of the outer wall of the cavity puncture hole, solve the postoperative bleeding and fistula of the puncture hole, and further avoid abdominal infection and sepsis caused by gastric fistula and intestinal fistula. . The reverse titanium clip of the utility model is in an inverted triangle shape after being closed, and basically invades the tissue of the cavity, and the outside of the cavity is smooth, which can prevent damage to organs outside the cavity. The utility model is convenient, fast and reliable to use, has good clamping performance, has good clamping properties and toughness, does not produce displacement after clamping, etc., and can break through the current unsolvable bottleneck that the outer wall of the cavity cannot be closed.

Description

Invasive Reverse Titanium Clip

technical field

The utility model relates to a medical and sanitary appliance, in particular to an intrusive reverse titanium clip.

Background technique

Surgical scars, in the history of more than 100 years of surgical development, are considered to be the inevitable product of surgery, and in order to obtain sufficient exposure of the surgical field, major surgery must use a larger surgical incision, so there is a saying "big doctor, big incision" statement. Until the 1980s, the rise of laparoscopic minimally invasive surgical techniques made people gradually realize that small incisions through the abdominal wall can also perform routine abdominal operations, and has the advantages of fast postoperative recovery, less pain for patients, and good cosmetic effects. With the popularization of minimally invasive technology and the concept of minimally invasive surgery, people have gradually changed their understanding of previous surgical approaches. "Big doctor, small incision" is the direction of future surgical development. In recent years, a brand-new technique that almost subverts the traditional concept of surgery has attracted great interest from laparoscopic surgeons and endoscopic physicians, and has become the focus of research and debate. This is called "scarless surgery" NOTES : Natural Orifice Transluminal Endoscopic Surgery (NOTES), Jiang Daozhen, Minimally Invasive Surgery, Shanghai Changzheng Hospital. However, due to the incomplete understanding of its related theories and the relative lag in the development of related equipment and devices, there are still many problems to be solved before NOTES enters the clinic.

The closure of the cavity puncture hole in the NOTES technique is a very critical technical point, and it is also a difficult point. At present, many closure methods have been proposed, including suture, endoscopic hemostatic clip clamping, specially designed closure device, endoluminal cutting closure, biological glue bonding, laser welding and other methods, but because the closure of the cavity is limited to its inner wall, The outer wall is still in a non-sealed state, so there are still quite a few experimental cases after the operation with bleeding and fistula from the puncture hole, which in turn causes abdominal infection and sepsis. Therefore, how to properly close the visceral puncture hole and avoid gastric fistula and intestinal fistula is the first difficulty that NOTES must overcome at present, and further research and development of the device is awaited. The research and development of special equipment for NOTES is the key to the smooth progress and success of NOTES.

At present, various new devices adapted to NOTES technology have been developed, such as endoscopic metal titanium clips. Animal experiments have confirmed that they can safely and effectively close blood vessels in the mesentery, serosa, and even the liver with a diameter of less than 5 mm. Thermal hemostatic devices, including grasping forceps and squeezing forceps, can clamp and compress tissue flexibly and effectively, and are suitable for dealing with mesenteric vessels, colonic arteries, left gastric arteries, and cystic arteries. The success rate of hemostasis is 100% after the two ends of the blood vessel are coagulated with grasping forceps or squeeze forceps, and then cut from the middle.

U-shaped or V-shaped titanium clips are specially used for implanting in the human body to seal the inner tubular during surgery (such as Chinese patents 200610050576.4 and 200720109029.9). The inner wall of the cavity is closed, while the outer wall is still open, which is very unfavorable to the recovery of organ function, especially for the gastrointestinal tract, and complications are prone to occur. For the clamping of the outer wall of the cavity, there are no reports of related products so far. The closure of the outer wall of the cavity has the following difficulties: minimally invasive operations are performed in the direction of the inner wall of the cavity, and the problem of how to release the clip needs to be solved to clamp the outer wall; Sharp ends, otherwise it may cause certain damage to adjacent organs.

The sealing of the outer wall of the cavity, especially the sealing of the outer wall of the gastrointestinal tract, has high requirements on the holding tools, which can neither occupy too much space nor have a sharp shape to prevent damage to other organs in the abdominal cavity. However, the existing U-shaped or V-shaped clips cannot be applied to the clipping of the outer wall of the gastrointestinal tract at all.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the above-mentioned prior art, to provide a multi-level, multi-degree-of-freedom free release, fast and convenient, capable of preventing damage to the organs outside the cavity, and effectively realizing the outer wall of the cavity puncture hole. It is an invasive reverse titanium clip that can close and solve the bleeding and fistula of the puncture hole after surgery, and avoid abdominal infection and sepsis caused by gastric fistula and intestinal fistula.

In order to achieve the above object, the utility model adopts the following technical solutions:

An invasive reverse titanium clip, including a reverse titanium clip, the shape of the reverse titanium clip is M-shaped, wherein the V-shaped part in the middle of the reverse titanium clip is the release section, and the parts on both sides of the reverse titanium clip are clips The holding section, the two ends of the holding section are bent inwards, and the two ends are provided with at least one engaging sawtooth.

The included angle between the clamping section and the release section is 30-45 degrees, the included angle of the V-shaped part of the release section is 30-60 degrees, and the included angle between the clamping section and the inwardly bent end 120-135 degrees.

The V-shaped bottom of the release section and the connection between the release section and the clamping section are round transitions.

Compared with the prior art, the utility model has the following advantages and effects: the utility model can realize multi-level, multi-degree-of-freedom free release, effectively realize the closure of the outer wall of the cavity puncture hole, and solve the postoperative bleeding and fistula of the puncture hole, In order to avoid problems such as abdominal infection and sepsis caused by gastric fistula and intestinal fistula. In addition, the inverted titanium clip of the utility model is in an inverted triangle shape after being closed, and basically invades the tissue of the cavity, and the outside of the cavity is smooth, which can prevent damage to organs outside the cavity. The utility model is convenient, fast and reliable to use, has good clamping performance, has good clamping properties and toughness, does not produce displacement after clamping, and can break through the bottleneck that the outer wall of the cavity cannot be closed that cannot be solved at present.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram after the release of the utility model;

Fig. 3 is step 1 schematic diagram in the utility model embodiment;

Fig. 4 is the schematic diagram of step 2 in the utility model embodiment;

Fig. 5 is the schematic diagram of step 3 in the utility model embodiment;

Fig. 6 is a schematic diagram of step 4 in the embodiment of the utility model;

Wherein 1. Release section, 2. Clamping section, 3. End, 4. Sawtooth, 5. Cavity, 6. Outer sleeve, 7. Inner sleeve, 8. Control rod, 9. Outer side of the cavity.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

In Figures 1 and 2, an intrusive reverse titanium clip includes a reverse titanium clip. The two sides of the titanium clip are clamping sections 3 , the two ends 3 of the clamping section 3 are bent inwardly, and the two ends 3 are provided with at least one meshing sawtooth 4 .

According to the specific requirements of use, various reverse titanium clips of different sizes can be customized. Generally speaking, for the gastrointestinal NOTES treatment technique, the diameter of the overtube 6 is required to be 3.7-4.2mm, the length of the clamping section 2 of the reverse titanium clip is 2-3mm, the length of the release section 1 is 1-2mm, and the release section 1 is V-shaped. The bottom and the connection between the release section 1 and the clamping section 2 are all round transitions, and the radius of the fillet between the clamping section 2 and the release section 1 is not less than 2 mm. Before the release, the reverse titanium clip is in a constrained state in the outer sleeve 6 . The angle between the clamping section 2 and the release section 1 is 30-45 degrees, the angle of the V-shaped part of the release section 1 is 30-60 degrees, and the distance between the clamping section 2 and the inwardly bent end 3 The included angle is 120-135 degrees.

As shown in Figure 3-6, a method of using an invasive reverse titanium clip includes the following steps:

1). Connect the V-shaped bottom of the release section 1 of the reverse titanium clamp to the control rod 8, and insert the release section 1 into the inner casing 7 from the V-shaped bottom, and then insert the entire reverse titanium jacket into the outer casing 6. Under the combined action of the outer sleeve 6, the inner sleeve 7 and the control rod 8, the reverse titanium clip is sent to the outside 9 of the cavity to be sealed;

2). After the reverse titanium clip is sent to the designated position, the outer casing 6 is retracted, and the reverse titanium clip recovers under the elastic force of the clamping section 2 itself to realize the opening of the clamping section 2, and the inner casing 7 and the control rod 8 remain stationary to ensure that the release section 1 of the titanium clamp is still restrained;

3). The reverse titanium clip moves to the outer wall of the cavity to be sealed under the joint action of the inner sleeve 7 and the control rod 8, the inner sleeve 7 gradually releases the release section 1 of the titanium clip, and the titanium clip begins to invade the outer wall of the cavity to be sealed organize;

4). The inner cannula 7 gradually moves out of the outer wall of the cavity, and the reverse titanium clip is closed under the action of the self-resilience of the release section 1. At this time, the reverse titanium clip invades the tissue as a whole; after that, the control rod 8 continues to be subjected to tension, and the reverse direction is reversed. The titanium clip realizes self-sealing in its own triangular stable structure, and provides enough external force to resist the pulling force of the control rod 8 until the control rod 8 breaks away from the titanium clip, so far, the outer wall of the cavity is closed.

The inner casing 7 in the steps 1)-4) is provided with a groove for fixing the reverse titanium clip, and the inner casing 7 can rotate freely to increase the degree of freedom of the reverse titanium clip.

The reverse titanium clip of the utility model is in an inverted triangle shape after being closed, and basically invades the tissue of the cavity 5, and the outer wall of the cavity 5 is smooth, which can prevent damage to organs outside the cavity.

Claims (3)

1. An intrusive reverse titanium clip is characterized in that: it comprises a reverse titanium clip, and the profile of the reverse titanium clip is M-shaped, wherein the V-shaped part in the middle of the reverse titanium clip is a release section, and the reverse titanium clip The parts on both sides of the clip are clamping segments, and the two ends of the clamping segment are bent inwardly, and the two ends are provided with at least one engaging sawtooth. 2. The intrusive reverse titanium clip according to claim 1, characterized in that: the included angle at the junction of the clamping section and the release section is 30-45 degrees, and the included angle of the V-shaped part of the release section is 30° -60 degrees, the angle between the clamping section and the inwardly bent end is 120-135 degrees. 3. The intrusive reverse titanium clip according to claim 1, characterized in that: the V-shaped bottom of the release section and the connection between the release section and the clamping section are all round transitions.

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