CN214208441U - Blood vessel pedicle forceps for thoracoscope cardiac surgery - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, a blood vessel pedicle of a fruit pincers for thoracoscope cardiac surgery is disclosed, including first tong arm and the first tong mouth of connection at its both ends, first handle and second tong arm and the second tong mouth of connection at its both ends, the second handle, first tong arm and second tong arm are parallel and link into an integrated entity, first tong mouth is articulated with first tong arm, the second handle is articulated with the second tong arm, when the second handle opens and closes for first handle, drive first tong mouth and open and close for the second tong mouth, the near section and the far section of first tong arm, the near section and the far section of second tong arm are obtuse angle and are connected, the near section and the first handle of first tong arm, the near section and the second handle of second tong arm all are located same straight line, can steadily place, dodge other blood vessels of neighbouring, provide bigger operatable space in the operation, can be to the separation and the accuracy of large blood vessel, The blocking belt is safely placed without influencing other operations of an operator, and the accuracy and the safety of the operation are improved.

Description

Blood vessel pedicle forceps for thoracoscope cardiac surgery

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a blood vessel pedicle forceps for thoracoscope cardiac surgery.

Background

In cardiac surgery, the primary means to reduce bleeding is to block blood flow. The current methods of blood flow blockage are by hemostatic forceps, blocking forceps to occlude the vessel, or blocking band. The structure of the hemostat or occlusion forceps used is different for different blood vessels. The vascular pedicle of the heart is composed of large blood vessels including pipelines such as brachiocephalic vein, superior vena cava, inferior vena cava and the like, the diameter of the tissues is large, the shapes of the tissues are irregular, and common vascular clamps cannot effectively block the large blood vessels without causing obvious damage. The conventional hemostats or blocking forceps for clamping and closing pedicle tissues are generally straight forceps handles which are connected into an arc-shaped forceps mouth, so that the vessel pedicle is difficult to accurately clamp. Especially in the minimally invasive heart surgery, the difficulty is how to use hemostatic forceps or blocking forceps to close the vascular pedicle. In addition, the use of the vascular pedicle pliers for separating blood vessels and placing the blocking belt is another important function, and the separation of large blood vessels and the accurate and safe placement of the blocking belt in the thoracoscopic minimally invasive heart surgery are also one of the problems to be solved at present. Compared with the traditional 'thoracotomy bone sawing' in surgical operation, the cardiac minimally invasive operation adopts a method of opening 3 incisions in the chest wall, the incisions are small, hemostatic forceps or blocking forceps used for clamping and closing the vascular pedicle are difficult to avoid other blood vessels and difficult to accurately clamp, and meanwhile, after the vascular pedicle is clamped, the hemostatic forceps or the blocking forceps cannot be stably placed, so that the subsequent operation of a doctor is influenced. When the blocking belt is clamped to place to block the blood vessel, the clamp handle of the existing clamp is straight, the blood vessel is difficult to bypass, the operation range is large, and particularly in thoracoscopic heart operation, the operation is more inconvenient because the operation incision is smaller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blood vessel pedicle of a pedicle pincers for thoracoscope cardiac surgery which is convenient to use and does not influence the operation of doctors.

In order to achieve the above object, the present invention provides a pair of vascular pedicle pliers for thoracoscope cardiac surgery, comprising a first forceps mouth, a second forceps mouth, a first forceps arm, a second forceps arm, a first handle and a second handle, wherein the first forceps mouth and the first handle are respectively connected to two ends of the first forceps arm, the second forceps mouth and the second handle are respectively connected to two ends of the second forceps arm, the first forceps arm and the second forceps arm are parallel to each other and connected into a whole, the first forceps mouth is hinged to the first forceps arm, the second handle is hinged to the second forceps arm, and when the second handle is opened and closed relative to the first handle, the first forceps mouth is driven to be opened and closed relative to the second forceps mouth, the proximal section of the first forceps arm is connected to the distal section thereof, and the proximal section of the second forceps arm is connected to the distal section thereof at an obtuse angle, the proximal section of the first forceps arm and the first handle are located on the same straight line, and the proximal section of the second forceps arm and the second handle are located on the same straight line.

Preferably, the proximal section and the distal section of the first forceps arm and the proximal section and the distal section of the second forceps arm are in arc transition connection.

Preferably, the included angle between the proximal segment of the first forceps arm and the distal segment thereof and the included angle between the proximal segment of the second forceps arm and the distal segment thereof are both 150 ° to 170 °.

Preferably, the distal sections of the first and second clamp mouths are both bent towards the first and second clamp arms, and are both arc structures with central angles larger than 90 ° and smaller than 180 °.

Preferably, the proximal sections of the first and second plier nozzles are both arc structures with central angles smaller than 45 °, the circle center of the proximal section and the circle center of the distal section of the first plier nozzle are located on both sides of the first plier nozzle, the circle center of the proximal section and the circle center of the distal section of the second plier nozzle are located on both sides of the second plier nozzle, and the circle radii of the proximal sections of the first and second plier nozzles are respectively greater than 5 times of the radii of the distal sections of the first and second plier nozzles.

As a preferred scheme, a first clamping rack arranged along the extending direction of the first clamp mouth is arranged on the surface, opposite to the second clamp mouth, of the first clamp mouth, a first clamping groove matched with the first clamping rack and two second clamping racks arranged along the extending direction of the first clamping rack are arranged on the second clamp mouth, the first clamping groove is located between the two second clamping racks, and two second clamping grooves matched with the second clamping racks are arranged on the first clamp mouth.

Preferably, the proximal sections of the first and second jawarms are each longer than the distal sections thereof.

Preferably, the distance between the two ends of the proximal section of the first jaw is greater than the length of the distal section of the first forceps arm, and the distance between the two ends of the proximal section of the second jaw is greater than the length of the distal section of the second forceps arm.

Preferably, the near ends of the first handle and the second handle are respectively provided with a finger ring, the finger rings are elliptical, and the short axis of the finger ring is larger than 2 cm.

Preferably, the first handle and the second handle are provided with matched sawtooth buckles at the sides opposite to each other.

Compared with the prior art, the blood vessel pedicle forceps for thoracoscope cardiac surgery of the utility model has the advantages that:

the utility model discloses a blood vessel pedicle of a fruit pincers's first tong arm and second tong arm's proximal segment is the obtuse angle rather than the distal segment and is connected, make the distal segment of first tong arm and second tong arm get into heart department through the chest wall incision, and the proximal segment of first tong arm and second tong arm stays outside the chest wall incision, and can keep parallel with the chest wall, make first tong mouth and second tong mouth closed come the blood vessel pedicle of a fruit centre gripping after, blood vessel pedicle of a fruit pincers can steadily be placed, solve current hemostatic forceps or block that the pincers move under its self gravity and lead to being removed thereupon and cause the tissue by the centre gripping, the problem of tissue loss on every side, can dodge simultaneously and be close to other blood vessels pedicle of a fruit, and do not influence other operations of doctor, make things convenient for doctor to use, improve the accuracy and the safety degree of operation, and make things convenient for the centre gripping to block the area and bypass the blood vessel and tighten up, be fit for thoracoscopic minimally invasive heart operation.

Drawings

Fig. 1 is a schematic structural view of a vascular pedicle screw according to an embodiment of the present invention.

Fig. 2 is a front view of a vascular pedicle clamp according to an embodiment of the present invention.

Fig. 3 is a schematic view of a first jaw and a second jaw of an embodiment of the present invention.

In the figure, 1-first plier mouth; 101-a second card slot; 2-a second plier mouth; 201-a first card slot; 3-a first tong arm; 4-a second jawarm; 5-a first handle; 6-a second handle; 7-a first rack bar; 8-a second rack; 9-a finger ring; 10-sawtooth buckle.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the term "proximal section" refers to a portion close to an operator, and "distal section" refers to a portion far from the operator; the directional or positional relationships "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are indicative of the directional or positional relationships illustrated in the drawings, merely to facilitate description of the invention and to simplify the description, and are not indicative or implied that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, a blood vessel pedicle screw for thoracoscopic cardiac surgery according to a preferred embodiment of the present invention includes a first forceps mouth 1, a second forceps mouth 2, a first forceps arm 3, a second forceps arm 4, a first handle 5 and a second handle 6, the first forceps mouth 1 and the first handle 5 are respectively connected to two ends of the first forceps arm 3, the second forceps mouth 2 and the second handle 6 are respectively connected to two ends of the second forceps arm 4, the first forceps arm 3 and the second forceps arm 4 are parallel to each other and connected into a whole, the first forceps mouth 1 is hinged to the first forceps arm 3, the second handle 6 is hinged to the second forceps arm 4, and when the second handle 6 is opened and closed relative to the first handle 5, the first forceps mouth 2 is driven to be opened and closed relative to the second forceps mouth 2, a proximal portion of the first forceps arm 3 is connected to a distal portion thereof, a proximal portion of the second forceps arm 4 is connected to a distal portion thereof at an obtuse angle, and a proximal portion of the first handle 3 is located on the same straight line as the first handle 5, the proximal segment of the second jawarm 4 is collinear with the second handle 6. The proximal sections of the first forceps arm 3 and the second forceps arm 4 of the vascular pedicle forceps of the embodiment are connected with the distal sections thereof at an obtuse angle, so that the distal sections of the first forceps arm 3 and the second forceps arm 4 enter the heart through the chest wall incision, the proximal sections of the first clamp arm 3 and the second clamp arm 4 are left outside the chest wall incision and can keep parallel with the chest wall, after the first clamp mouth 1 and the second clamp mouth 2 are closed to clamp the vascular pedicle, the vascular pedicle clamp can be stably placed, the problem that the clamped tissue and surrounding tissues are lost due to the fact that the clamped tissue moves along with the existing hemostatic clamp or blocking clamp under the self gravity is solved, meanwhile, other blood vessels adjacent to the vascular pedicle can be avoided, and do not influence other operations of doctor, make things convenient for the doctor to use, improve the accuracy and the degree of safety of operation, and more make things convenient for the centre gripping to block the area and bypass the blood vessel and tighten up, be fit for the little invasive heart operation of thoracoscope. When the vascular pedicle forceps are used, the second handle 5 rotates to open, the second forceps arm 4 moves along the first forceps arm 3 to drive the first forceps mouth 1 to rotate to open, the first forceps arm 3 and the second forceps arm 4 are always tightly connected together in the opening and closing processes, tissue damage caused by overlarge opening and closing amplitude of the forceps can be prevented, the length of the forceps is ensured, and the vascular pedicle forceps can penetrate through a chest wall incision and extend into a heart. The blood vessel pedicle forceps of the embodiment can also be used for placing an upper and lower vena cava blocking belt in thoracoscope heart surgery, the forceps of the embodiment can be used for enabling the blocking belt to penetrate through the gap between the upper and lower vena cava, then the rubber sleeve is sleeved on the blocking belt, and the rubber sleeve is tightened to achieve the purpose of blocking, and a cord of the blocking belt can conveniently pass through a blood vessel to form a tightening ring by means of the design that the proximal sections and the distal sections of the first forceps arm 3 and the second forceps arm 4 form an obtuse angle, so that the operation of a doctor is convenient, and the problems that the amplitude and the length of the conventional forceps are insufficient when the forceps pass through the blood vessel are solved.

Further, the proximal segment of the first clamp arm 3 and the distal segment thereof, and the proximal segment of the second clamp arm 4 and the distal segment thereof are arc transitional connections, and the first clamp arm 3 and the second clamp arm 4 can be integrally formed by the arc transitional connections, and meanwhile, cleaning and disinfection can be facilitated, and dead angles can be avoided. In addition, the included angle between the proximal section of the first clamp arm 3 and the distal section thereof and the included angle between the proximal section of the second clamp arm 4 and the distal section thereof are 150 to 170 degrees, so that the first clamp arm 3 and the second clamp arm 4 are bent at a small angle, the movement of the distal sections of the first clamp arm 3 and the second clamp arm 4 is consistent with the proximal section operation movement direction thereof, and the length of the first clamp arm 3 and the length of the second clamp arm 4 are favorably ensured. In addition, the proximal sections of the first forceps arm 3 and the second forceps arm 4 are both longer than the distal sections thereof, so that the handles of the forceps can be placed far away from the surgical incision, and the operation of a doctor is prevented from being hindered. In this embodiment, the angle between the proximal section of the first forceps arm 3 and the distal section thereof, and the angle between the proximal section of the second forceps arm 4 and the distal section thereof are 165 °, the length of the proximal section of the first forceps arm 3 and the second forceps arm 4 is 6cm, the length of the distal section is 5cm, and the length of the first handle 5 and the second handle 6 is 6 cm.

Further, the distal sections of the first forceps mouth 1 and the second forceps mouth 2 of the present embodiment are both bent toward the first forceps arm 3 and the second forceps arm 4, and are both arc structures with central angles larger than 90 ° and smaller than 180 °, the forceps mouths of hemostatic forceps or occlusion forceps such as renal pedicle forceps and spleen pedicle forceps in the prior art are both bent, but the bending degree is small, the forceps mouths of the present embodiment are arc structures with central angles larger than 90 ° and can clamp large and complex vascular pedicle tissues, for the forceps mouths with small bending degree, the whole body of the tissues such as blood vessels cannot be completely clamped, so that incomplete clamping is caused, in order to realize clamping, the inclination degree of the whole forceps needs to be adjusted, so that the placement of the forceps is not stable, otherwise, the bending degree of the forceps arms of the present embodiment needs to be adjusted, and the over-bending of the forceps arms can cause unclear vision, particularly, in minimally invasive surgeries, the surgical incisions are small, the clamp can be used for clamping a blood vessel to form a tightening ring, and the clamp can be used for clamping the blood vessel to form a tightening ring. The design of the clamp mouth with the small-amplitude bending clamp arm and the circular arc-shaped clamp mouth with the central angle larger than 90 degrees solves the problems of incomplete clamping and unclear observation. In addition, the central angle of the forceps mouth of the embodiment is less than 180 degrees, so that repeated clamping of the same blood vessel can be prevented. In the present embodiment, the central angle of the first and second nipper jaws 1 and 2 is 170 °.

Further, the proximal sections of the first forceps mouth 1 and the second forceps mouth 2 of the present embodiment are both arc structures with central angles smaller than 45 °, the circle center of the proximal section of the first forceps mouth 1 and the circle center of the distal section thereof are located at both sides of the first forceps mouth 1, the circle center of the proximal section of the second forceps mouth 2 and the circle center of the distal section thereof are located at both sides of the second forceps mouth 2, the circle radii of the proximal sections of the first forceps mouth 1 and the second forceps mouth 2 are respectively greater than 5 times of the circle radii of the distal section thereof, and the vascular pedicle is located at the top of the heart and is close to the aorta. In addition, the distance between the two ends of the proximal section of the first forceps mouth 1 is greater than the length of the distal section of the first forceps arm 3, the distance between the two ends of the proximal section of the second forceps mouth 2 is greater than the length of the distal section of the second forceps arm 4, the extending depth of the forceps mouths is increased, and the contact area between the forceps mouths and the clamping part is increased. In the embodiment, the central angle of the proximal section of the first forceps mouth 1 and the second forceps mouth 2 is 30 °, the radius of the distal section of the first forceps mouth 1 and the second forceps mouth 2 is 2cm, and the radius of the proximal section of the first forceps mouth 1 and the second forceps mouth 2 is 12.5 cm.

Optionally, referring to fig. 3, a first clamping rack 7 arranged along the extending direction of the first plier nozzle 1 is arranged on a surface of the first plier nozzle 1 opposite to the second plier nozzle 2, a first clamping groove 201 matched with the first clamping rack 7 and two second clamping racks 8 arranged along the extending direction are arranged on the second plier nozzle 2, the first clamping groove 201 is located between the two second clamping racks 8, two second clamping grooves 101 matched with the second clamping racks 8 are arranged on the first plier nozzle 1, and the clamping teeth can prevent slipping during clamping.

Optionally, the proximal ends of the first handle 5 and the second handle 6 of this embodiment are respectively provided with a finger ring 9, the finger ring 9 is an ellipse, and the minor axis of the finger ring 9 is greater than 2cm, so as to facilitate the insertion and extension of fingers. In this embodiment, the finger ring 9 has a minor axis of 2.5cm and a major axis of 3 cm. In addition, the mutually opposite sides of the first handle 5 and the second handle 6 of this embodiment are provided with the matched with sawtooth buckle 10, that is, the first handle 5 and the second handle 6 are respectively provided with a convex strip, the convex strip top surface of the first handle 5 is provided with a plurality of sawteeth, the convex strip bottom surface of the second handle 6 is provided with a plurality of sawteeth, the locking is realized through the buckling of the sawteeth on the two convex strips, and different sawteeth buckle with each other to adjust the clamping force.

To sum up, the embodiment of the present invention provides a vascular pedicle screw for thoracoscopic cardiac surgery, wherein the proximal sections of the first forceps arm 3 and the second forceps arm 4 are connected to the distal sections thereof at an obtuse angle, so that the distal sections of the first forceps arm 3 and the second forceps arm 4 enter the heart through the chest wall incision, and the proximal sections of the first forceps arm 3 and the second forceps arm 4 are left outside the chest wall incision and can be kept parallel to the chest wall, so that the first forceps mouth 1 and the second forceps mouth 2 are closed to clamp the vascular pedicle, the vascular pedicle screw can be stably placed, thereby solving the problem that the clamped tissue is moved by the self gravity of the existing hemostatic forceps or blocking forceps, and the clamped tissue is lost, and simultaneously avoiding other blood vessels adjacent to the vascular pedicle, and not affecting other operations of the doctor, facilitating the use of the doctor, improving the accuracy and safety of the surgery, and facilitating the tightening of the clamping blocking tape around the blood vessel, is suitable for thoracoscope minimally invasive cardiac surgery.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A vascular pedicle screw for thoracoscopic cardiac surgery is characterized by comprising a first screw nozzle, a second screw nozzle, a first screw arm, a second screw arm, a first handle and a second handle, wherein the first screw nozzle and the first handle are respectively connected with two ends of the first screw arm, the second screw nozzle and the second handle are respectively connected with two ends of the second screw arm, the first screw arm and the second screw arm are parallel to each other and are connected into a whole, the first screw nozzle is hinged with the first screw arm, the second handle is hinged with the second screw arm, the second handle drives the first screw nozzle to open and close relative to the second screw nozzle when opened and closed relative to the first handle, the near section of the first screw arm is connected with the far section of the first screw arm at an obtuse angle, and the near section of the first screw arm and the first handle are positioned in the same straight line, the proximal section of the second jawarm is located on the same straight line as the second handle.

2. The pedicle clamp for thoracoscopic heart surgery as recited in claim 1, wherein the proximal section and the distal section of the first clamp arm and the proximal section and the distal section of the second clamp arm are all arc-shaped transitional joints.

3. The pedicle clamp for thoracoscopic heart surgery as recited in claim 1, wherein an angle between the proximal section and the distal section of the first clamp arm and an angle between the proximal section and the distal section of the second clamp arm are both 150 ° to 170 °.

4. The pedicle clamp for thoracoscopic heart surgery as recited in claim 1, wherein the distal sections of the first and second clamp mouths are both bent toward the first and second clamp arms, and are both arc-shaped structures with central angles greater than 90 ° and less than 180 °.

5. The pedicle forceps for thoracoscopic cardiac surgery as recited in claim 4, wherein the proximal sections of the first and second forceps jaws are arc structures with central angles smaller than 45 °, the centers of the proximal and distal sections of the first forceps jaw are located on both sides of the first forceps jaw, the centers of the proximal and distal sections of the second forceps jaw are located on both sides of the second forceps jaw, and the radii of the proximal sections of the first and second forceps jaws are respectively greater than 5 times the radius of the distal section of the first and second forceps jaws.

6. The pedicle screw of blood vessel forceps for thoracoscopic cardiac surgery as recited in claim 1, wherein a first clamping rack is disposed on a surface of the first forceps mouth opposite to the second forceps mouth along an extending direction of the first forceps mouth, the second forceps mouth is provided with a first clamping groove matched with the first clamping rack and two second clamping racks disposed along an extending direction of the second forceps mouth, the first clamping groove is located between the two second clamping racks, and the first forceps mouth is provided with two second clamping grooves matched with the second clamping racks.

7. The vascular pedicle clamp for thoracoscopic heart surgery as recited in claim 1, wherein the proximal section of each of the first and second clamp arms has a length greater than the distal section thereof.

8. The vascular pedicle clamp for thoracoscopic heart surgery as recited in claim 5, wherein the proximal section of the first clamp jaw has a distance between its ends that is greater than the length of the distal section of the first clamp arm, and the proximal section of the second clamp jaw has a distance between its ends that is greater than the length of the distal section of the second clamp arm.

9. The vascular pedicle clamp for thoracoscopic heart surgery as recited in claim 1, wherein the proximal ends of the first handle and the second handle are respectively provided with a finger ring, the finger rings are elliptical, and the minor axis of the finger ring is larger than 2 cm.

10. The pedicle clamp for thoracoscopic heart surgery as recited in claim 1, wherein the first and second handles are provided with mating serrated buckles on sides thereof opposite to each other.

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