TWI527555B - With a blood vessel support structure used with a hemostatic forceps (endoclip) - Google Patents

Description

Vascular support structure for use with endoclips

The invention relates to an endoclip, and in particular to a vascular support structure for use with a hemostat.

Minimally invasive surgery is a relatively sophisticated technique in the development of surgery. It is mainly to cut several small wounds in the human body, and then put various precision instruments into the human body through these small wounds for surgery, thereby reducing the operation caused by surgery. The amount of trauma and bleeding allows the patient who has completed the surgery to recover faster, and allows the reconstituted wound to form a more beautiful scar, while reducing the pain of the wound and the chance of postoperative infection.

The hemostatic forceps play a very important role in the operation of the instruments used in minimally invasive surgery. The principle of use is to clamp the blood vessels to stop the blood with the collet of the front end, so as to perform the ligation and hemostasis of the blood vessels, but because the blood vessels will Because of the flow of blood, the expansion and contraction of the blood, so that doctors must wait for the stability of the blood vessels and the position of the blood vessels to be sutured when using the hemostatic forceps, the hemostatic forceps will be inserted into the human body through the trocar. Hemostasis, it can be seen that the traditional hemostatic forceps are easily affected by vascular pulsation during use and increase the risk of their use.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a vascular support structure for use with an endoclip that can help stabilize blood vessels in order to use a hemostat to perform a hemostasis of subsequent blood vessels to increase the safety of the surgical procedure.

In order to achieve the above object, the vascular support structure of the present invention comprises at least one support portion that is bendably deformable, and the support portion is movable between a first position and a second position relative to one of the hemostats, when When the supporting portion of the body is in the first position, the gap of one of the collets is not blocked, so that the notch is open, and when the supporting portion of the main body is located at the second position, the blood vessel is guided to the collet The gap is closed in the gap, so that the blood vessel can be stably positioned in the gap, so that the hemostasis of the blood vessel can be conveniently used to stop the blood vessel, so as to increase the safety of the operation.

In order to explain the structure, features, and advantages of the present invention in detail, the preferred embodiments are illustrated in the accompanying drawings.

Referring to the first figure, a hemostat 10 for using the vascular support structure 20 of the first preferred embodiment of the present invention, the hemostatic forceps 10 shown therein includes a grip 12 and a shaft 14 connecting the grip 12. And a collet 16 disposed at the end of the shaft 14, wherein the collet 16 has a notch 162 for receiving a titanium nail 18 and a blood vessel 30, when the user holds the grip 12 and performs a firing action. The collet 16 is driven to compress the titanium nail 18, allowing the titanium nail 18 to clamp the blood vessel 30.

Referring to the first and second figures, a blood vessel supporting structure 20 according to a first preferred embodiment of the present invention has two base portions 22 made of shape memory metal, and the two base portions 22 are located on the shaft 14 of the hemostatic forceps 10. The top and bottom sides are respectively formed with a bendable support portion 24 at the end thereof, and the base portion 22 is slidably displaced relative to the shaft 14 of the hemostat 10, thereby driving the support portion 24 at a first position P1 and a The second position P2 is actuated relative to the collet 16 of the hemostat 10, and when the two supporting portions 24 are at the first position P1, the two supporting portions 24 are separated from each other without obstructing the notch 162 of the collet 16 so that the clip The notch 162 of the head 16 is in an open state, and when the two supporting portions 24 are driven by the base portion 22 and located at the second position P2, the original curved shape is restored according to the characteristics of the shape memory metal to be interlaced, thereby partially or completely blocking the collet. The notch 162 of 16, as shown in the third figure, is completely occluded in this embodiment, and at the same time, the blood vessel 30 is guided into the notch 162 of the collet 16, thereby closing the notch 162, so that the blood vessel 30 is stably positioned in the notch. Within 162, you can operate the grip at this time. The firing operation is performed on the 12, and the collet 16 is clamped to the blood vessel 30 by pressing the titanium nail 18 as shown in Figs. 4 and 5.

Of course, the present invention can also be used with only one support portion or two or more support portions, and the design can be changed as needed.

Referring to FIG. 6 again, a blood vessel supporting structure 40 according to a second preferred embodiment of the present invention has a base portion 42 and a pull cord 44. The base portion 42 is located on one side of the shaft 14 of the hemostat 10 and is opened. A hollow groove 422 is bent to form a bendable support portion 46. The pull cord 44 is disposed in the base portion 42 and is connected to the support portion 46 at one end thereof. Thereby, the support portion 46 receives the drawstring at the second position P2. 44 is biased to create a bend, and the blood vessel 30 is guided into the notch 162 of the collet 16 during the bending process, as shown in the seventh figure, and then the hemostasis of the subsequent blood vessel can be performed.

It should be noted that the above-mentioned bendable support portion is only the illustrated embodiment, and other forms of elastic deformation structure, or a bendable deformation structure composed of a plurality of segment connection sleeves, can be applied to the present invention.

In summary, the vascular support structure of the present invention can effectively help the stability of the blood vessel, and the doctor can use the hemostat to perform the subsequent blood vessel hemostasis operation to increase the safety of the surgical procedure.

The constituent elements of the present invention disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention. The alternative or variations of other equivalent elements are also covered by the scope of the patent application.

"First Embodiment"

10. . . Hemostatic forceps

12. . . Grip

14. . . Shaft

16. . . Chuck

162. . . gap

18. . . Titanium nail

20. . . Vascular support structure

twenty two. . . Base

twenty four. . . Support

P1. . . First position

P2. . . Second position

30. . . Blood vessel

"Second embodiment"

40. . . Vascular support structure

42. . . Base

422. . . Hollow slot

44. . . Drawstring

46. . . Support

The first figure is a plan view of a hemostat using the first preferred embodiment of the present invention.

The second figure is a partial enlarged view of the first figure.

The third to fifth figures are schematic views of the operation of the first preferred embodiment of the present invention in conjunction with a hemostat.

Figure 6 is a partial perspective view of a second preferred embodiment of the present invention.

Figure 7 is a schematic view showing the operation of the second preferred embodiment of the present invention in combination with a hemostat

16. . . Chuck

162. . . gap

18. . . Titanium nail

20. . . Vascular support structure

twenty two. . . Base

twenty four. . . Elastic support

P1. . . First position

Claims (4)

A blood vessel support structure for use with a hemostatic forceps, the hemostatic forceps comprising a collet having a notch, the blood vessel support structure comprising: a body having at least one support portion that is bendably deformable, the support portion being opposite The collet of the hemostat moves between a first position and a second position, and when the support portion of the body is in the first position, the notch is open, and when the support portion of the body is located at the second In position, the support portion will be bent toward the notch to block the gap of the collet. The vascular support structure for use with a hemostat according to claim 1, wherein the body has two bases on both sides of the hemostatic forceps, and a support portion is formed at an end thereof, respectively, when the two support portions are When in the first position, they are separated from each other, and when the two supporting portions are located in the second position, they are interlaced. The vascular support structure used in combination with the hemostat according to claim 2, wherein the base of the body and the support portion are made of a shape memory metal. The vascular support structure for use with a hemostat according to claim 1, wherein the body has a base and a drawstring, the base is located on one side of the hemostatic forceps, and a hollow groove is formed to form the support portion. The drawstring is disposed in the base and is connected to the support portion at one end thereof. When the support portion is located in the second position, the pull cord is biased by the pulling force.