WO2015169058A1

WO2015169058A1 - Anvil holding forceps head for stapler used in esophagus during thoracoscopy procedure and holding forceps with the forceps head

Info

Publication number: WO2015169058A1
Application number: PCT/CN2014/088998
Authority: WO
Inventors: 黄宇清
Original assignee: 黄宇清
Priority date: 2014-05-08
Filing date: 2014-10-21
Publication date: 2015-11-12
Also published as: CN203914994U

Abstract

An anvil holding forceps head for a stapler used in esophagus during a thoracoscopy procedure and a holding forceps for a stapler used in esophagus during a thoracoscopy procedure with the forceps head. The holding forceps head comprises: a forceps head fixed shaft (10); a first clamping arm (201) and a second clamping arm (202) both provided with rotating holes sleeved on the forceps head fixed shaft (10) for rotation. The clamping end of the first clamping arm (201) and the clamping end of the second clamping arm (202) are bent towards the same axial direction of the forceps head fixed shaft (10), and the clamping surface of each clamping end and the forceps head fixed shaft (10) are parallel or located on the same plane. The driving end of the first clamping arm (201) is provided with a first driving hole (401), and the driving end of the second clamping arm (202) is provided with a second driving hole (402). The first driving hole (401) and the second driving hole (402) are used for exerting force through a driving shaft to make the first clamping arm (201) and the second clamping arm (202) open or close. The holding forceps can clamp the stapler anvil firmly at a specific angle, and have a small cross section, so that the size of an incision required in the operation is reduced, and the injury to a human body is reduced.

Description

Thoracoscopic esophageal anastomat anvil holding pliers head and holding pliers with the same

Technical field

The utility model relates to the field of medical surgical instruments, in particular to a thoracoscope esophageal anastomat anvil holding pliers.

Background technique

Total thoracoscopic and laparoscopic resection of esophageal cancer is a new international and domestic technology in recent years. It provides possibilities for the implementation of surgery in the continuous updating of minimally invasive devices. However, the current laparoscopic surgery for the removal of the thoracic portion of esophageal cancer is limited to the following two methods: 1. Only the esophagus is free, and then anastomosis is performed in the neck; 2. After the anastomosis (Ovil) is placed orally, Perform an intrathoracic anastomosis. Due to the high cost of Ovil materials and the long learning curve, domestic applications are not well spread. Therefore, in recent years, thoracic surgery endoscopists have begun to try to place stapler anvils in the chest and anastomosis, but usually use conventional instruments according to personal habits. In thoracoscopic esophagectomy and intrathoracic anastomosis, the surgeon needs to use a surgical instrument to place the stapler anvil into the proximal end of the esophagus and fix the stapler anvil at the time of anastomosis to facilitate the docking of the stapler. The thoracoscopic operation hole and the esophagus have a special angle. At present, the open instruments and the endoscopic instruments cannot be placed under the endoscope, and the circular stapler anvil is freely placed into the proximal esophagus end to be anastomosed. And it is not possible to effectively fix the staple anvil during the anastomosis to dock the stapler. Because the chest wall small incision does not retract the rib before the thoracoscopic esophagectomy, the relative operation space is narrow. The existing joint design of the surgical instrument is advanced, and the intraoperative instrument joint enters the thoracic cavity. The opening and closing process of the instrument will be affected by the rib. The opening and closing action is obviously limited, and the 90 degree angle of the end of the fixed jaw can not meet the operation requirements of the surgical operation hole and the window hole and the esophagus to form a special angle, which causes the operation difficulty of the doctor and the extension of the operation time. It is often necessary to additionally increase the chest operation incision, or to extend the operation of the incision, and even have to transfer the chest or add a neck incision to change the neck anastomosis to increase the patient's wound.

Utility model content

The technical problem to be solved by the embodiment of the present invention is to provide a thoracoscopic esophageal anastomat anvil holding pliers head and a thoracoscopic esophageal anastomat anvil holding pliers having the same, which can be firmly clamped at a specific angle Hold the anvil, in order to be easy to operate during the operation, safe and reliable, to meet the needs of surgery, and to maintain a small cross-sectional area, Reduce the length required for the surgical incision and reduce the trauma to the human body.

According to a first aspect of the present invention, a thoracoscopic esophageal anastomat anvil holding pliers is provided, comprising: a clamping head fixed axis; and a first clamping arm and a second clamping arm, each having a function a rotating hole that is rotated on the fixed shaft of the clamp head, and the clamping end of the first clamping arm and the clamping end of the second clamping arm are aligned in the same axial direction of the clamping head Bending, and the clamping surface of the clamping end is parallel or in the same plane with the clamping head; the driving end of the first clamping arm is provided with a first driving hole, and the second clamping arm The driving end is provided with a second driving hole, and the first driving hole and the second driving hole are used for applying force through the driving shaft, so that the first clamping arm and the second clamping arm are opened or closure.

According to a second aspect of the present invention, a thoracoscope esophageal anastomat anvil holding jaw is provided, wherein a clamping surface of the first clamping arm and a clamping of the second clamping arm The surface has a symmetrical clamping groove, and when the first clamping arm and the second clamping arm are closed, a clamping hole is formed to match the contour of the outer peripheral surface of the thoracoscope esophagus anvil.

According to a third aspect of the present invention, a thoracic esophageal anastomat anvil holding jaw is provided, wherein a central axis of the clamping hole is opposite to a clamping end of the first clamping arm and The central axis when the grip end of the second gripping arm is closed is perpendicular.

According to a fourth aspect of the present invention, a thoracoscope esophageal anastomat anvil holding jaw is provided, wherein a clamping end of the first clamping arm and a clamping end of the second clamping arm The same axial bending angle to the jaws ranges from 110 degrees to 130 degrees.

According to a fifth aspect of the present invention, a thoracoscopic esophageal anastomat anvil holding jaw is provided, wherein a clamping end of the first clamping arm and a clamping end of the second clamping arm The angle of the same axial bending to the jaws is 120 degrees.

According to a sixth aspect of the present invention, a thoracoscopic esophageal anastomat anvil grasping forceps is provided, wherein the thoracoscopic esophageal anastomat anvil grasping forceps may include: any one of claims 1 to 5 a thoracoscope esophageal anastomat anvil holding a pliers head; the caliper body comprising an outer sleeve, a drive rod reciprocally slidable longitudinally within the outer sleeve, and a first drive arm coupled to the first end of the drive rod via a moving shaft And a second driving arm; the first end of the outer sleeve has a prong structure for fixing the clamping head such that the first clamping arm and the second clamping arm are rotatable Connecting with the outer sleeve; a first driving hole provided by the first driving arm and the driving end of the first clamping arm is rotatably connected through the driving shaft, and the second driving arm A second driving hole provided at a driving end of the second clamping arm is rotatably connected through the driving shaft.

According to a seventh aspect of the present invention, a thoracoscopic esophageal anastomat anvil holding pliers is provided, wherein The second end of the outer sleeve may also be coupled with a drive for driving the drive rod to reciprocally slide within the outer sleeve.

According to an eighth aspect of the present invention, a thoracoscopic esophageal anastomat anvil grasping forceps is provided, wherein the driving device may include: a connectable connection with a second end of the outer sleeve Two grip handles; a transfer arm rotatably coupled to a second end of the drive rod and rotatably coupled to a portion of each of the grip hands adjacent the guide rod for The tensioning motion of the two gripping handles translates into a longitudinal reciprocal sliding of the drive rod within the sleeve.

According to a ninth aspect of the present invention, a thoracoscope esophageal anastomat anvil grasping forceps is provided, wherein a cleaning hole and a cleaning hole cover are disposed on the outer sleeve near the second end portion for A high pressure liquid or gas is injected from the cleaning hole for cleaning.

According to a tenth aspect of the present invention, a thoracoscopic esophageal anastomat anvil grasping forceps is provided, wherein the driving device is an electric driving device or a hydraulic driving device for driving the driving rod for longitudinal sliding .

The thoracoscope esophageal anastomat of the utility model holds the clamp head or the holding clamp. When the clamp head is closed, the clamp end of the clamp head is bent at a specific angle, so that the doctor can obtain proper operation when performing the operation of the anvil and the stapler. The angle not only solves the problem of firm clamping, but also makes the cross-sectional area of the entire thoracoscopic esophageal anastomat holding jaw or the holding jaw body on the flow line small, so that no large surgical opening is required, and thus Reducing the trauma to the patient; in addition, since the clamping end of the clamping head is provided with a clamping hole, the axis of the clamping hole is perpendicular to the clamping arm where it is located, matching the specific angle described above, thereby clamping the anvil and The stapler can be operated very freely, avoiding the technical problem that the operation of the existing surgical instrument is difficult and the operation hole needs to be opened; at the same time, the thoracoscope esophageal anastomat of the utility model is convenient to operate, and only needs to be operated. The opening of two operating holes in the patient's body improves the efficiency of the operation and greatly reduces the patient's pain.

The utility model is directed to the stapler head fixing pliers used in the existing open surgery, and can not change the shape and structure of the device due to various defects such as inconvenience of the device caused by the narrow operation port and the unsuitable angle. The thoracoscope esophageal anastomat anvil provided by the utility model holds the clamp head or the holding clamp to ensure the operation is safe and reliable during the operation. In the utility model: 1. In addition to the thoracoscopic esophageal anastomat anvil holding the forceps head, a thoracoscope esophageal stapler grasping forceps including the thoracoscope esophageal anastomat anvil holding jaw is provided, which is located at the back of the forceps The handle forms a double-opening joint of the clamp body, and is suitable for the microscopic operation of the small operation hole of the thoracoscope; 2. The clamping end of the clamp head has a specific angle with the main body at the front, preferably 120 degrees, for facilitating the insertion of the stapler nail The anvil has a suitable angle when fixing the stapler anvil; 3. The clamping end of the clamp head is provided with a clamping groove for the special fitting anvil, and the central axis of the clamping hole formed when closed is vertical The central axis of the body is closed when the clamping end of the clamp head is closed, so as to effectively fix the anvil of the stapler And convenient docking stapler. Moreover, the double joint is convenient for the instrument for the minimally invasive surgical incision of the thoracoscope, the suitable angle is convenient for avoiding the angle between the incision and the end of the esophagus during the operation, and the clamping hole matching the outer peripheral surface of the stapled anvil of the clamped object is convenient and effective. Hold the stapler anvil.

In the operation, the space in the thoracic cavity is small, and the operation incision and angle are limited. However, the thoracoscopic esophageal anastomat anvil holding pliers of the present invention can meet the needs of surgery in two aspects: 1. Manually planning the site for esophageal anastomosis The pulp muscle layer is stored for one week, and under the lower part, the part of the esophagus is cut, and the thoracoscope esophageal anastomat anvil is provided by the utility model, and the anvil is held from the front operation port into the chest cavity, and is sent upward from the cut esophagus. Into the anvil, ligature the purse line, and completely cut off the esophagus. 2. When the anastomosis is performed, the holding clamp is placed by the incision under the shoulder blade, and the stapler is aligned after the anvil is fixed. The utility model of the device makes the two-step operation a breeze. This design provides a convenient operation for thoracoscopic thoracic esophageal anastomosis, allowing the existing stapler to perform an intrathoracic anastomosis under the premise of a thoracoscopic minimally invasive surgical incision. There is no need to increase the cost of surgical disposable materials and extend the helpless choice of surgical incision, so that the operation is safer and more convenient, reduce the risk of surgery, shorten the operation time, ensure the anastomosis effect and the safety of surgery, and ensure the flexibility of the operation.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

1 is a side view of a thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention;

2 is a top plan view of a thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention;

Figure 3 is a view of the grip end of Figure 2 taken along the F direction;

4 is a side view of a thoracoscope esophageal anastomat anvil holding plier according to an embodiment of the present invention;

5 is a top plan view of a thoracoscope esophageal anastomat anvil holding plier according to an embodiment of the present invention;

6 is a schematic view showing the first end structure of the outer sleeve of the thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention;

7 is a schematic structural view of a closed end of a thoracoscope esophageal anastomat anvil holding plier according to an embodiment of the present invention;

8 is a schematic view showing the structure of a thoracoscopic esophageal anastomat anvil holding pliers according to an embodiment of the present invention;

9 is a structural view of a thoracoscope esophageal anastomat anvil holding pliers according to another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

According to one embodiment of the present invention, a thoracoscopic esophageal staple anvil holding jaw is provided. 1 is a side view of a thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention; FIG. 2 is a top view of a thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention; 3 is a view in the F direction of the grip end portion in Fig. 2. As shown in FIG. 1 , FIG. 2 and FIG. 3 , the thoracoscope esophageal anastomat anvil gripping head of the present embodiment comprises: a clamping head fixed shaft 10 . In the embodiment, the clamping head fixed axis 10 is perpendicular to the drawing. The paper surface; and the first clamping arm 201 and the second clamping arm 202, which may be collectively referred to as the clamping arms 2, each having a rotating hole for locking on the fixed shaft 10 of the jaw, the first clamping arm The clamping end of the second clamping arm and the clamping end of the second clamping arm are bent in the same axial direction of the clamping head 10, and in the present embodiment, are bent outward in a direction perpendicular to the drawing paper surface of FIG. And the clamping surface of the clamping end is parallel to the clamping shaft 10 or on the same plane, and the situation shown in Fig. 2 can be obtained after bending. The clamping surface is substantially flat, but may be a rough or textured clamping surface for increasing the friction; the driving end of the first clamping arm 201 is provided with a first driving hole 401, and the second clamping arm 202 The driving end is provided with a second driving hole 402. The first driving hole 401 and the second driving hole 402 may be collectively referred to as a clamping arm driving hole 4 for applying force through the driving shaft, so that the first clamping arm 201 and the second clamping member The arm 202 is opened or closed. The drive shaft is mounted in each drive hole. It should be noted that, as shown in FIG. 2, the same axial bending angle A of the clamping end to the clamping head 10 can be set to a specific angle according to different models and requirements, and the angular range can be 110 to 130 degrees. It is preferably set to 120 degrees. At 120 degrees, it can meet the positional characteristics of the human esophagus and the general surgical incision, and usually achieves a very smooth operation effect. In Fig. 2, B is a schematic central axis when the first clamping arm 201 and the second clamping arm 202 are closed.

According to a second embodiment of the present invention, a thoracoscopic esophageal anastomat anvil holding jaw is provided, wherein the clamping surface of the first clamping arm 201 and the clamping surface of the second clamping arm 202 are both The symmetrical clamping groove forms a clamping hole 220 that matches the contour of the outer peripheral surface of the thoracoscopic esophageal anastomosis anvil when the first clamping arm 201 and the second clamping arm 202 are closed. The holding hole 220 may also be provided in a shape matching the contour of the outer peripheral surface of any other object to be clamped as needed, thereby preventing the object to be rotated or slipped, and firmly holding the object to be clamped.

According to a third embodiment of the present invention, a thoracoscope esophageal anastomat anvil holding jaw is provided, wherein a central axis C of the clamping hole 220 and a clamping end and a second clamping of the first clamping arm The center axis B1 when the grip end of the arm is closed is perpendicular, as shown in FIG. The grip end refers to a portion that is substantially straight near the end, that is, a portion of the end A of the angle A of Fig. 2 where the end B1 is located. When the angle A is preferably 120 degrees, at this time, the angle between the central axis C of the clamping hole 220 and the other side B2 of the angle A is 30 degrees, so that the clamped thoracoscope esophagus anastomat or anastomosis The tube on the device presents a state that facilitates surgical operation. Of course, the central axis C of the clamping hole 220 can also be at other angles with the central axis B1 when the clamping end of the first clamping arm and the clamping end of the second clamping arm are closed to meet the special needs of the operation. As shown in Fig. 3, the diameter of the holding hole can be set according to the outer diameter of the object to be clamped, for example, the diameter of the holding hole can be 6 to 9 mm.

The thoracoscopic esophageal anastomat anvil holding head of the embodiment of the present invention has a flow linear structure. When closed, the cross-sectional area of the flow line is substantially uniform, without increasing the cross-sectional area, and does not need to increase the patient. Major surgical incision. Therefore, the problem of using the welding aid on the existing holding head to increase the surgical incision when the chest is placed is completely overcome.

According to an embodiment of the present invention, a thoracoscopic esophageal anastomat anvil grasping forceps is provided. 4 is a side view of a thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention; and FIG. 5 is a plan view of a thoracoscope esophageal anastomat anvil holding plier according to an embodiment of the present invention; A schematic diagram of a first end structure of an outer cannula of a thoracoscopic esophageal anastomat anvil gripper according to an embodiment of the present invention; FIG. 7 is a closed view of a thoracoscope esophageal anastomat anvil holding pliers according to an embodiment of the present invention; FIG. 8 is a schematic view showing the structure of the thoracoscopic esophageal anastomat anvil holding pliers according to an embodiment of the present invention; and FIG. 9 is a thoracoscopic esophageal anastomat holding device according to another embodiment of the present invention. The structure of the pliers. Wherein, the thoracoscopic esophageal anastomat anvil grasping forceps comprises: the thoracoscope esophageal anastomat anvil holding the forceps head; the caliper body described in any one of the foregoing embodiments. The caliper body includes an outer sleeve 1, a drive rod 3 that is reciprocally slidable in the longitudinal direction of the outer sleeve 1, and a first drive arm 301 and a second drive arm 302 that are coupled to the first end of the drive rod 3 via a moving shaft; The first end of the tube 1 has a prong structure for fixing the clamp shaft 10 such that the first clamp arm 201 and the second clamp arm 202 are rotatably coupled to the outer sleeve 1; the first drive arm 301 The first driving hole 401 provided with the driving end of the first clamping arm 201 is rotatably connected by the driving shaft, and the second driving hole 302 of the second driving arm 302 and the driving end of the second clamping arm 202 is driven by the driving. The shaft is rotatably connected. As shown in Fig. 6, the prong structure of the first end of the outer sleeve 1 can be used to secure the jaw shaft 10. The drawing shows only the prong structure of the first end of the outer sleeve 1 and the position of the clamp shaft 10. As can be seen in conjunction with Figures 7 and 8, when the jaw positioning shaft 10 is secured to the prong structure of the first end of the outer sleeve 1, the first drive arm 301 and the second drive arm relative to the

outer sleeve

1, 302 and the driving end and the second of the first clamping arm 201 The driving end of the clamping arm 202 forms a quadrilateral with only one vertex position fixed and three apex positions variable, wherein the driving rod 3 forces the first driving hole 401 and the second driving hole 402 to approach or reciprocately slide in the outer sleeve 1 or Along from the axis of the drive rod 3, the reciprocating sliding of the drive rod 3 in the outer sleeve 1 is converted into a clamping action of the clamping arm. Therefore, when the distance between the first end of the drive rod 3 and the fixed shaft 10 of the clamp is maximum, the angle of the clamp arm is minimum, and the closing and holding operation is realized; when the first end of the drive rod 3 is away from the fixed shaft 10 of the clamp When the distance is the smallest, the clamping arm opening angle is the most, and the clamping arm opening operation is realized. When the clamping arm is closed, the cross-sectional area of the flow line of the overall holding forceps can be made small, and it is not necessary to enlarge the incision when extending into the surgical incision. Also, the outer sleeve 1 and the drive rod 3 can be selected to any length as needed, and there is still no need to change the cross-sectional area of the flow line of the overall holding jaw.

In another embodiment of the present invention, a thoracoscopic esophageal anastomotic anvil grasping forceps is provided. The second end of the outer sleeve 1 is also connected with a driving device for driving the drive rod 3 to reciprocally slide in the outer sleeve 1. The driving device may be a hand-held handle like a hand-held pliers, or an electric drive device or a hydraulic drive device, as long as it can be used to drive the drive rod 3 for longitudinal sliding.

More specifically, when the driving device is a hand-held handle, it may include: two holding handles that are connected to the second end of the outer sleeve 1 in a slidable manner; and the second end of the driving rod 3 is rotatably A transmission arm that is coupled and rotatably coupled to a portion 5 of each of the gripping hands 3 is adapted to convert the kneading movement of the two gripping handles into a longitudinal reciprocal sliding of the drive rod 3 within the sleeve 1. As shown in Figure 9, the structure is similar to the drive structure near the first end of the clamp arm, but the function achieved is to convert the tensioning motion of the two grip handles into a longitudinal reciprocation of the drive rod 3 within the sleeve 1. Sliding, the gripping handle is rotated relative to the fixed shaft on the outer sleeve 1, thereby effecting longitudinal sliding of the drive rod 3 within the outer sleeve 1 during the opening. This structure allows the overall gripping forceps to form a double joint structure. The inside of the two gripping handles may be provided with hooks for hooking each other, and when the gripping jaws are clamped, the handles are fixed to avoid the need to pinch the handles for a long time during operation.

In addition, a cleaning hole and a cleaning hole cover may be provided on the outer sleeve near the second end for injecting a high-pressure liquid or gas from the cleaning hole for cleaning. Because the surgical instrument is in the process of surgery, blood or other fluids will inevitably enter the outer casing, and it needs to be cleaned with high-pressure liquid or gas. Setting the cleaning hole here does not affect the cross-sectional area of the portion of the entire thoracoscopic esophageal anastoma holder holding the forceps into the surgical incision.

More specifically, in order to achieve the object of the present invention, the technical solution adopted is as follows: 1. A thoracoscopic esophageal stapler holding clamp, including a handle at the back of the caliper body, a double-opening joint of the caliper body, suitable for a small operation hole of the thoracoscope The operation under the microscope; 2, the front part of the clamp body has an angle of 120 degrees with the end of the jaw: easy to insert the staple anvil, and the fixed anastomosis anvil has a suitable angle when docking the stapler; 3, the jaw special The groove of the stapler anvil. Vertical to the jaws, it is convenient to effectively fix the staple anvil and facilitate the docking stapler. The double joint facilitates the instrument for the minimally invasive surgical incision of the thoracoscopic surgery, and the appropriate angle facilitates the overcoming of the incision and the end of the esophagus during surgery. A dedicated recess facilitates the effective fixation of the staple anvil.

Therefore, in the operation, according to the small space in the thoracic cavity, the operation of the incision and the angle limitation, the thoracoscopic esophageal anastomat anvil holding pliers provided by the utility model can meet the needs of the operation in at least two aspects: 1. The part of the esophageal anastomosis is firstly hand-pulverized with a muscle pack for one week. Under the lower part of the esophagus, a part of the esophagus is cut. The thoracoscopic esophageal anastomosis anvil is used to hold the stapler anvil from the front operation port into the chest cavity, and the esophagus is self-cut. Send the anvil, ligation the purse line, and completely cut the esophagus. 2. When the anastomosis is performed, the holding clamp is placed by the incision under the shoulder blade, and the stapler is aligned after the anvil is fixed.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. It is to be understood that the foregoing description is only The scope of the present invention is to be construed as being within the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A thoracoscopic esophageal anastomat anvil holding pliers head, characterized in that:

Clamping the shaft; and

a first clamping arm and a second clamping arm each having a rotating hole for being sleeved on the fixed shaft of the clamping head, a clamping end of the first clamping arm and the second clamping The clamping end of the arm is bent in the same axial direction of the clamping head, and the clamping surface of the clamping end is parallel or in the same plane with the clamping head; the first clamping arm The driving end is provided with a first driving hole, and the driving end of the second clamping arm is provided with a second driving hole, the first driving hole and the second driving hole are for applying a force through the driving shaft, so that the The first clamping arm and the second clamping arm are opened or closed.
The thoracoscopic esophageal anastomat anvil holding jaw according to claim 1, wherein the clamping surface of the first clamping arm and the clamping surface of the second clamping arm are symmetric The clamping slot forms a clamping hole that matches the contour of the outer peripheral surface of the thoracoscopic esophageal anastomosis anvil when the first clamping arm and the second clamping arm are closed.
The thoracoscopic esophageal anastomat anvil holding jaw according to claim 2, wherein a central axis of the clamping hole is opposite to a clamping end of the first clamping arm and the second clamping arm The center axis of the clamping end is closed when it is closed.
The thoracoscopic esophageal anastomat anvil holding jaw according to claim 3, wherein the clamping end of the first clamping arm and the clamping end of the second clamping arm are directed to the clamping head The same axial bending of the fixed axis ranges from 110 degrees to 130 degrees.
The thoracoscopic esophageal anastomat anvil holding jaw according to claim 3, wherein the clamping end of the first clamping arm and the clamping end of the second clamping arm are directed to the clamping head The angle of the same axial bend of the fixed axis is 120 degrees.
A thoracoscopic esophageal anastomat anvil grasping forceps, characterized in that the thoracoscope esophageal anastomat anvil holding clamp comprises:

The thoracoscopic esophageal anastomat anvil holding jaw according to any one of claims 1 to 5;

a caliper body comprising an outer sleeve, a drive rod reciprocally slidable longitudinally in the outer sleeve, and a first drive arm and a second drive arm coupled to the first end of the drive rod via a moving shaft; One end portion has a forked ear structure for fixing the clamp head fixed shaft such that the first clamp arm and the second clamp arm are rotatably coupled to the outer sleeve; the first drive a first driving hole provided by the arm and the driving end of the first clamping arm is rotatably connected through the driving shaft, and a second driving arm is disposed at a driving end of the second clamping arm Drive holes are rotatably coupled by the drive shaft.
The thoracoscopic esophageal anastomat anvil grasping forceps according to claim 6, wherein the second end of the outer sleeve is further connected with a driving device for driving the driving rod to reciprocally slide in the outer sleeve.
The thoracoscopic esophageal anastomat anvil grasping forceps according to claim 7, wherein the driving device comprises: two gripping handles that are connected to the second end of the outer sleeve in a slidable manner; a transmission arm rotatably coupled to a second end of the drive rod and rotatably coupled to a portion of each of the gripping hands for guiding the two gripping handles The motion is converted into a longitudinal reciprocal sliding of the drive rod within the sleeve.
The thoracoscopic esophageal anastomat anvil holding pliers according to claim 8, wherein a cleaning hole and a cleaning hole cover are disposed on the outer sleeve near the second end for injecting from the cleaning hole High pressure liquid or gas is cleaned.
The thoracoscopic esophageal anastomat anvil grasping forceps according to claim 7, wherein the driving device is an electric driving device or a hydraulic driving device for driving the driving rod for longitudinal sliding.