Minimally invasive surgical forceps suitable for thoracic surgery

Abstract

The minimally invasive surgical forceps suitable for the thoracic surgery department are provided with forceps bodies, and the forceps bodies comprise the first forceps body and the second forceps body; the first forceps body and the second forceps body are connected through a double-opening-and-closing joint. A handheld part is arranged at the near end of the forceps body; an occlusion part is arranged at the far end of the forceps body; and a groove is formed in the occlusion part. The anastomat has the advantages that the trafficability of the anastomat in an operation can be improved by optimizing the structural design of the instrument, and meanwhile, the number of repeated positioning attempts in an operation field blind area is reduced, so that the implantation time of the anastomat is remarkably shortened, the tension borne by a corresponding blood vessel or trachea is effectively reduced, and the rupture of the blood vessel or trachea caused by overhigh tension is avoided; and tissue behind the blood vessel can be isolated and protected, blunt injury of a metal head of the cutting anastomat to surrounding tissue is avoided, and the device is suitable for guiding the cutting anastomat to safely pass through the blood vessel or the trachea in the minimally invasive surgery of the thoracic surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically, to a minimally invasive surgical forceps applicable to thoracic surgery.

Background Art

[0002] With the increasing proportion of minimally invasive thoracic surgery year by year, the requirements for surgical instruments related to thoracic surgery are also constantly improving. In some complex and highly difficult minimally invasive surgeries, when simply applying a cutting stapler to pass through blood vessels or the trachea, due to limited angles and narrow spaces, there is a problem that it is very difficult for the cutting stapler to pass through. Refer to Figure 1 and Figure 2 , Figure 1 are components of a common cutting stapler, Figure 2 is the state when a common forceps body picks up the blood vessel or trachea to be cut. It can be seen from this that the exposed space is not sufficient for the anvil assembly in the cutting stapler to pass through. At this time, if forced to pass through, it is easy to cause situations such as blood vessel tearing and massive bleeding in the lower part of the forceps body or tracheal rupture, increasing the probability of surgical complications and the proportion of conversion to thoracotomy.

[0003] According to the multi-center research data in the Annals of Thoracic Surgery in 2021, the incidence of intraoperative vascular accidental injuries is about 1.5%-3.2%, and among them, the secondary trauma caused by instrument penetration failure accounts for 42% of vascular complications. Such events can directly cause blood vessel tearing or rupture, with an average blood loss of up to 800-1200 ml (the normal operating blood loss < 200 ml), forcing 30% of the cases to urgently convert to thoracotomy for hemostasis, and the risk of postoperative complications (such as infection, atelectasis) increases by 2.3 times. More seriously, the mortality rate of patients with underlying cardiovascular diseases due to such injuries can reach 5.8% (the control group is 0.9%), and the postoperative ICU stay time is extended by 3-5 days, and the direct medical cost increases by about 40%. These data highlight the key role of precise instrument operation in minimally invasive surgery. Any failure to penetrate the vascular space may have a catastrophic impact on the patient's prognosis. Therefore, designing this set of special surgical instruments for thoracic surgery aims to solve such problems that occur during the operation and reduce the probability of intraoperative complications.

[0004] Chinese Patent Application: CN101569547A discloses a surgical forceps. A rotating shaft connects two halves of the forceps body into an integral body that can rotate relative to each other. Handles are respectively provided at the rear ends of the two halves of the forceps body, the front ends of the forceps body form forceps jaws, an elastic clip is provided between the two handles at the rear end of the forceps body, and the two mating surfaces on the forceps jaws are arc-shaped surfaces that fit each other in the closed state. The present invention has the advantages of accurate cutting edge positioning, convenient suturing, neat alignment, and at the same time, the clamped tissue is not easy to slide, which can reduce the damage to the clamped tissue, completely block the blood flow during the operation, and greatly reduce the probability of postoperative bleeding and edema complications. The whole operation becomes simple and easy, and the operation time is greatly shortened. This is a commonly used surgical forceps body in existing medical equipment, and it does not involve the cooperation problem with a stapler.

[0005] Chinese Patent Application: CN102614004B discloses a surgical clip forceps, including a clip forceps body. The clip forceps body includes a first bracket and a second bracket. A first grip part is formed at the rear end of the first bracket, a second grip part is formed at the rear end of the second bracket, and a pivot part is provided at the intersection position of the first bracket and the second bracket. The pivot part pivotally connects the first bracket and the second bracket in a crossed manner, so that the first bracket and the second bracket can perform clamping and opening / closing actions; a surgical guide device, which is arranged at the exact center of the crossed opening position of the first bracket and the second bracket. The surgical guide device includes a guide tube and a connecting tube. The connecting tube is provided with a sliding column, and the sliding column is provided with a hollow chute; and a column, which is arranged at the pivot part, and the column passes through the hollow chute. The surgical clip forceps uses the designed structure to make the surgical operation of the surgical medical operation faster and more accurate through a single surgical operation mode, and reduces the mistakes during the operation. A guiding device is provided in the forceps body, but it does not guide a stapler, and the groove described in the text has a different function from the groove in the present invention.

[0006] In summary, there is an urgent need for a surgical forceps set that can guide a stapler to safely pass through blood vessels or trachea, protect the tissues under the forceps body while making the surgical process smoother, more convenient, safer, shorten the surgical time, ensure the surgical effect, and avoid the occurrence of related surgical complications.

Summary of the Invention

[0007] The object of the present invention is to provide a surgical forceps set that can guide a stapler to safely pass through blood vessels or trachea, protect the tissues under the forceps body while making the surgical process smoother, more convenient, safer, shorten the surgical time, ensure the surgical effect, and avoid the occurrence of related surgical complications.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] A minimally invasive surgical forceps applicable to thoracic surgery, provided with a forceps body, the forceps body including a first forceps body and a second forceps body; a double-opening joint connection is provided between the first forceps body and the second forceps body; a hand-held part is provided at the proximal end of the forceps body; a biting part is provided at the distal end of the forceps body; a groove is provided on the biting part.

[0010] As a preferred example, the groove is provided on the inner side of the front surface of the biting part, and the size of the groove fits the size of the anvil assembly of the cutting stapler.

[0011] As another preferred example, the biting part is provided with a first biting part and a second biting part.

[0012] As another preferred example, the horizontal angle of the biting part is 30°, 45° and 60°.

[0013] As another preferred example, the hand-held part is provided with a mating lock tooth device.

[0014] The advantages of the present invention are as follows:

[0015] 1. By optimizing the structural design of the instrument, the present invention can effectively improve the passing performance of the stapler during the operation and reduce the operation resistance, while reducing the number of repeated positioning attempts in the surgical field blind area, thus significantly shortening the stapler insertion time, and effectively isolating and protecting the tissue under the forceps body to avoid blunt injury to it by the metal head of the cutting stapler.

[0016] 2. The present invention can effectively reduce the tension borne by the corresponding blood vessel or trachea, avoid the rupture of the blood vessel or trachea caused by excessive tension, significantly reduce the incidence of intraoperative complications (such as massive hemorrhage, conversion to thoracotomy, etc.), and further shorten the patient's postoperative hospital stay and reduce the comprehensive treatment cost.

[0017] 3. The present invention is applicable to guiding the safe passage of the cutting stapler through blood vessels or tracheas in minimally invasive thoracic surgery, with a delicate and practical structural design and broad application prospects.

Description of the Drawings

[0018] Attached Figure 1 is the cutting stapler assembly.

[0019] Attached Figure 2 is a schematic diagram of the present invention's minimally invasive surgical forceps for thoracic surgery when lifting a blood vessel / trachea.

[0020] Attached Figure 3 is a schematic structural diagram of the present invention's minimally invasive surgical forceps for thoracic surgery.

[0021] Attached Figure 4 is a partial schematic diagram of the groove of the present invention's minimally invasive surgical forceps for thoracic surgery.

[0022] Attached Figure 5It is a combined schematic diagram of a groove of a minimally invasive surgical forceps applicable to thoracic surgery and an anvil assembly in a cutting stapler.

Specific Embodiments

[0023] The present invention will be further described below in conjunction with embodiments and with reference to the accompanying drawings.

[0024] The reference numerals and components involved in the accompanying drawings are as follows:

[0025] 1. Plier body 11. First plier body 12. Second plier body 2. Double-opening joint 3. Hand-held part 4. Opposing locking tooth device 5. Biting part 51. First biting part 52. Second biting part 6. Groove

[0026] Embodiment 1

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "left" and "right" are based on the orientation or positional relationship described in the accompanying drawings, and the purpose is to facilitate the description of the present invention. The terms "first", "second", etc. are used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0028] It is worth mentioning that during the use of the surgical forceps of the present invention, the end close to the operator is the proximal end or the rear end, and the end close to the surgical patient is the distal end or the front end.

[0029] The embodiments of the present invention provide a minimally invasive surgical forceps applicable to thoracic surgery, and its structure will be described in detail below:

[0030] Please refer to Figures 1 to 5 , Figure 1 is the cutting stapler assembly; Figure 2 is a schematic diagram of the minimally invasive surgical forceps applicable to thoracic surgery of the present invention when lifting blood vessels / trachea; Figure 3 is a schematic diagram of the structure of the minimally invasive surgical forceps applicable to thoracic surgery of the present invention; Figure 4 is a partial schematic diagram of the groove of the minimally invasive surgical forceps applicable to thoracic surgery of the present invention; Figure 5 is a combined schematic diagram of a groove of a minimally invasive surgical forceps applicable to thoracic surgery and an anvil assembly in a cutting stapler.

[0031] A minimally invasive surgical forceps applicable to thoracic surgery is provided with a forceps body 1, and the forceps body includes a first forceps body 11 and a second forceps body 12; a double-opening joint 2 is connected between the first forceps body 11 and the second forceps body 12. The common double-opening joint 2 usually adopts a single-axis hinge design, and the main components include a hinge pin and a hinge groove, etc., which are prior art and will not be elaborated here.

[0032] In this embodiment, preferably, a hand-held part 3 is provided at the proximal end of the forceps body 1; the hand-held part 3 is provided with a mating lock tooth device 4, which can fix the closed state of the forceps jaws, relieve the hand operation pressure of the doctor, and ensure stable clamping of the surgical instrument during operation;

[0033] In this embodiment, the distal end of the pliers body 1 is preferably provided with a bite portion 5; the bite portion 5 is provided with a first bite portion 51 and a second bite portion 52; the bite portion 5 is provided with a groove 6, and the groove 6 is provided on the inner side of the front side of the bite portion 5, such as Figure 5 As shown, the front side is generally the side facing the surgeon when placed horizontally; the size of the groove 6 fits the size of the cutting stapler anvil assembly. More preferably, a relatively flat portion is provided at the proximal end of the groove 6 in this embodiment to facilitate the engagement with the anvil assembly to slide smoothly through the narrow gap of the trachea / blood vessel, thereby avoiding repeated attempts to pass through damaged blood vessels / trachea and shortening the operation time; the horizontal angle of the occlusal portion can be designed to be 30°, 45° and 60° according to intraoperative requirements, respectively, which are three types, suitable for situations where different angles are encountered in different operations.

[0034] The method and principle of the present invention are as follows (taking right middle lung lobectomy, which is common in thoracic surgery, as an example):

[0035] Surgical strategy: After cutting off the right middle lobe vein and fully freeing the tissue between the right middle lobe vein and the right middle lobe bronchus, Figure 2 As shown, the stapler assembly of the cutting stapler needs to pass through this gap, and the upper and lower staplers clamp the vein to complete the cutting and closing.

[0036] Difficulty of surgery: The veins to be clamped are Figure 2 As shown, the lower part of the tissue is protected during surgery, and the space for the forceps to lift is narrow. The stapler assembly of the cutting stapler usually passes through the lifted space, and it is often repeated many times before it can be forced through, which can easily cause tearing of the lower part of the tissue (trachea / blood vessels) and heavy bleeding.

[0037] Surgical procedure: free the anterior mediastinal pleura, expose the right middle pulmonary vein, trace the course of the middle lobe vein into the lung parenchyma, select the appropriate angle track clamp body 1 to first pass through the gap between the vein and the bronchus, fully free the gap space, open the clamp body 1, and introduce the cutting stapler. At this time, the nail seat assembly in the stapler is aligned with the groove on the occlusal part, clamp the clamp body 1, so that the nail seat assembly is stuck in the groove, and the operator uses the clamp body 1 to directly guide the stapler nail seat assembly to slide into the gap and pass through the blood vessel / trachea smoothly. Due to the isolation effect of the clamp body, the sharp metal head of the stapler will not poke the lower part of the lung tissue or other important organs. At this time, clamp the cutting stapler and the cutting and closure is completed.

[0038] It should be noted that by optimizing the structural design of the instrument, the present invention can effectively improve the passability of the stapler during the operation and reduce the operation resistance. At the same time, it reduces the number of repeated positioning attempts in the blind area of the surgical field, thus significantly shortening the stapler insertion time, and effectively isolating and protecting the tissue behind the blood vessel, avoiding the blunt injury of the surrounding tissue caused by the metal head of the cutting stapler; it can effectively reduce the tension borne by the corresponding blood vessel or trachea, avoid the rupture of the blood vessel or trachea caused by excessive tension, significantly reduce the incidence of intraoperative complications (such as massive hemorrhage, conversion to thoracotomy, etc.), and then shorten the patient's postoperative hospital stay and reduce the comprehensive treatment cost. The present invention is applicable to guiding the safe passage of the cutting stapler through blood vessels or tracheas in minimally invasive thoracic surgery, with a delicate and practical structural design and broad application prospects.

[0039] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and supplements can be made, and these improvements and supplements should also be regarded as the protection scope of the present invention.

Claims

1. A minimally invasive surgical forceps applicable to thoracic surgery, characterized in that, There is a pliers body, and the pliers body includes a first pliers body and a second pliers body; a double-opening joint connection is provided between the first pliers body and the second pliers body; a handheld part is provided at the proximal end of the pliers body; a biting part is provided at the distal end of the pliers body; a groove is provided on the biting part.

2. The minimally invasive surgical forceps applicable to thoracic surgery according to claim 1, wherein The groove is arranged on the inner side of the front surface of the biting part, and the size of the groove fits the size of the anvil assembly of the cutting stapler.

3. The minimally invasive surgical forceps for thoracic surgery according to claim 1, characterized in that, The biting part is provided with a first biting part and a second biting part.

4. The minimally invasive surgical forceps for thoracic surgery according to claim 1, wherein The horizontal angle of the biting part is 30°, 45° and 60°.

5. The minimally invasive surgical forceps for thoracic surgery according to claim 1, characterized in that, The handheld part is provided with a mating lock tooth device.

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