TWI514987B - Blood flow controller of intracavity - Google Patents

Description

Intraluminal blood flow control kit

The present invention relates to an intraluminal blood flow control kit, and more particularly to a laparoscopic procedure for controlling intraoperative blood flow.

In recent years, medical procedures similar to surgery have become increasingly refined, and based on the consideration of patients' postoperative wound care and healing, most medical practitioners have replaced traditional sutures with endoscopic surgery to reduce surgical wounds. It is convenient for the patient to take care of the postoperative and accelerate the healing of the wound.

Although endoscopic surgery has the advantages of reduced postoperative pain, rapid wound healing and shortened operation time, the visual field of endoscopic surgery is relatively small, so that those who are not familiar with endoscopic surgery are more difficult to control adjacent vessels during surgery. Blood flow, which causes a major obstacle to the surgical procedure. Taking liver surgery as an example, hepatic blood flow control (Pringle maneuver) is a temporary blockade of the liver triad. The procedure is to clamp or bundle the hepatic artery and hepatic portal vein with a vascular clamp or a plastic sheath. Tight, vascular control time is usually 15 minutes after blocking and then released for 5 minutes to restore liver blood flow, to avoid liver damage caused by liver ischemia. This method can effectively reduce bleeding during surgery and is widely used in traditional Laparotomy.

With the popularity of minimally invasive surgery and the advancement of devices, laparoscopic surgery is also gradually applied to liver surgery. Laparoscopic surgery usually involves the operation of several trocars smaller than 11 mm. There are two major difficulties in the control of hepatic blood flow at the end of laparoscopic surgery. Because the hepatic artery and hepatic portal vein are close to the posterior abdominal cavity, in the limited field of view of laparoscopic, the posterior abdominal cavity is usually the dead angle of the visual field. It is difficult to enclose the hepatic artery and the hepatic portal vein close to the posterior abdominal cavity, and the other is how to effectively perform the pinching action through the 11 mm cannula. At present, laparoscopic hepatic blood flow control methods such as laparoscopic special hemostatic forceps extend into the abdominal cavity to clamp the hepatic artery and hepatic portal vein; or, the entire band is pulled outside the abdominal cavity to block and relax the liver blood flow in vitro. These methods are mostly controlled by the extra-abdominal, in addition to the need for additional cannula to provide access to these instruments, these additional casing often hinder the operation.

For example, in the Republic of China Announcement No. 463624, "The Vascular Bundle-Fiking Ring for Endoluminal Surgery" patent case, which uses a surgical wire to form a tightly looped compound ring in a looped manner, and is glued and fixed in advance. As a tight blood vessel in the operation. Thereby, one end of the wire is guided through a loop through a lead tool, and the other end of the wire is extended from the loop to be long enough to continue pulling the ends of the lead material, and the blood vessel extending through the loop can be tightly passed through the loop bundle .

However, the conventional patent case not only requires the preparation of a wire with a loop-shaped loop, but also requires a complicated technique similar to suture in the surgery to tighten the blood vessel, and vice versa. In order to release the blood vessel, the loosened wire can not be reused. Therefore, the conventional patent cases still have various defects such as prolonged operation time, difficulty in operating the doctor, and increased surgical complexity.

In view of this, it is indeed necessary to develop a novel intracavitary blood flow control kit that is effective, simple, and capable of repeating the placement to control blood flow to blood vessels in endoscopic surgery and to solve various problems as described above.

The main object of the present invention is to improve the above disadvantages to provide an intraluminal blood The flow control kit is convenient for the medical practitioner to operate and adjust the degree of tightening of the circle in time to improve the control of blood flow of blood vessels.

The second object of the present invention is to provide an intracavitary blood flow control kit, which is capable of immediately encircling a blood vessel and completing a tight blood vessel operation during the operation, and can also be released immediately, and repeated multiple times to shorten the surgical procedure. The time it takes.

Still another object of the present invention is to provide an intraluminal blood flow control kit which is capable of reducing the formation of additional cannulae and wounds to improve the cumbersomeness of traditional blood flow control by the extraperitoneal operation, and is beneficial to the surgeon.

In order to achieve the foregoing object, the intracavitary blood flow control kit of the present invention comprises: a guiding member having a positioning portion and a wearing space; and a looping member, one end of which is connected to the guiding member, and a positioning portion of the guiding member is disposed at one end and protrudes out of the positioning portion; wherein the looping member and the guiding member enclose a clamping space for tightly fitting the blood vessel; The loop member is divided into a guiding portion, a positioning portion and a ring segment. The positioning portion is connected between the guiding portion and the ring surrounding portion, and is used for fastening to the positioning portion of the guiding member. The guiding segment is configured to traverse the positioning portion of the guiding member, the ring segment is configured to connect the guiding member, and surround the clamping space together with the guiding member; the guiding member has at least everything a groove-shaped positioning portion for the loop member to protrude into the wearing space and to be engaged with the positioning portion.

The positioning segment is formed by serially connecting a plurality of clamping blocks, and the clamping blocks are used for fastening to the positioning portion of the guiding member. Moreover, the cassette blocks are spherical or rectangular granular bodies.

In addition, the guiding segment has a pulling end protruding from the positioning portion of the guiding member.

Among them, the circle of the ring is a rubber tube with a hardness of 60 to 70.

An intracavitary blood flow control kit includes: a guiding member having a positioning portion; and a ring beam member, one end of which is connected to the guiding member, and the other end of which is disposed through the positioning portion of the guiding member, and is convex Extending out of the positioning portion; wherein the loop member and the guiding member enclose a clamping space for tightly fitting the blood vessel; the positioning portion is formed by a through hole and a loose hole The hole is connected to each other, and a gap is formed between the shrink hole and the loose hole, and a diameter of the shrink hole is smaller than a diameter of the loose hole and smaller than a diameter of the ring member; the ring member The utility model has a guiding segment, a positioning segment and a ring segment. The positioning segment is connected between the guiding segment and the ring segment for extending through the positioning portion of the guiding member and is positioned by the positioning portion. The shrink hole of the portion is clamped, and the guiding portion is used for traversing the positioning portion of the guiding member, and the ring surrounding portion is used for connecting the guiding member and enclosing the clamping space together with the guiding member.

Wherein, the positioning segments of the loop member are formed with a plurality of bumps at intervals, and there is a gap between any two bumps.

Moreover, the number of bumps is a ring body, and the ring body diameter is larger than the narrow hole width and smaller than the loose hole width.

Wherein, the guiding member is a block having a hardness of 90 to 100. The guiding section and the positioning section are elastic tubes having a hardness of 70 to 90, preferably an elastic tube having a hardness of 80. The circumference of the ring is a rubber tube with a hardness of 60 to 70.

Wherein, the loop member is integrally formed on the guiding member.

The above and other objects, features and advantages of the present invention will become more apparent. It is to be understood that the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , which is a preferred embodiment of the present invention, the intracavitary blood flow control kit includes a guiding member 1 and a ring member 2, and the ring member 2 is coupled to the guiding device. The member 1 has a common circle enclosing a holding space S (shown in detail in Fig. 2) for allowing the blood vessel to be stretched by the holding space S and being tightly bundled by the loop member 2.

Referring to FIG. 1 , the guiding member 1 has a positioning portion 11 for the loop member 2 to pass through. Wherein, the guiding member 1 is made of a biocompatible material, in particular, a plastic body to prevent electrical conduction during the operation. In this embodiment, the guiding member 1 can be an L-shaped plastic tube as shown in the drawing, and the guiding member 1 is formed with a through-hole (that is, the positioning portion 11 described above) for the ring. Preferably, the beam member 2 extends through the guiding member 1 through the positioning portion 11 and protrudes beyond the guiding member 1.

Please refer to FIG. 1 and FIG. 2 together, the loop member 2 can be selectively connected to the guiding member 1 by any means such as tight fitting, gluing, or the like, or can be integrally connected to the guiding member. 1. Thereby, the consolidation property of the loop member 2 and the guiding member 1 is improved to avoid the detachment of the loop member 2 due to the intraoperative pulling. In the present embodiment, the loop member 2 can be a tube having a better elasticity, in particular, a hollow thin tube, thereby improving the degree of elastic recovery of the loop member 2. The end of the loop member 2 is connected to the guiding member 1 at the other end, and the other end is inserted through the positioning portion 11 of the guiding member 1 and protrudes out of the positioning portion 11 to surround the common portion 11 Clamp the space S.

Thus, when the medical practitioner controls the intraluminal blood flow control kit of the present invention, as shown in FIG. 2, the patient is controlled to blood flow through the loop member 2 The tube is passed through the positioning portion 11 of the guiding member 1 at one end of the ring member 2 to restrict the blood vessel of the patient from penetrating into the clamping space S. At this time, the doctor can rely on a holder (not shown) to pull the end of the loop member 2 protruding from the guide member 1 to adjust the appropriate circumference of the clamping space S. The blood vessel of the patient can be tightly bundled through the loop member 2 and fixed by a surgical needle or a hemostat. Under this circumstance, the medical practitioner can control the state of the tight blood vessel of the ring member 2 at any time according to the needs of the operation, so as to ensure that the operation can be smoothly and quickly completed under the effective control of blood flow without impairing organ function.

In particular, the aspect of the loop member 2 can be derived from a plurality of types under the foregoing concept, so as to be able to enclose the clamping space S together with the matching guide member 1 as a main principle, and to accommodate the next Other examples are illustrated.

Referring to FIG. 3, which is another preferred embodiment of the present invention, the intracavitary blood flow control kit includes a guiding member 3 and a ring member 4.

The guide 3 is also made of a biocompatible material. The guide member 3 of the present embodiment is a plastic straight tube as shown in the figure, and is preferably hollow to form a through space 30. The guide member 3 has at least all groove-like positioning. The portion 31 is preferably such that the loop member 4 extends into the wearing space 30 and is caught on the positioning portion 31.

Referring to FIGS. 3 and 4 together, the loop member 4 can also be integrally formed on the guide member 3. The ring member 4 of the present embodiment can be further divided into a guiding portion 41 , a positioning portion 42 and a ring segment 43 . The positioning segment 43 is connected to the guiding portion 41 and the ring segment 43 . The guiding portion 41 is configured to be fastened to the positioning portion 31 of the guiding member 3; the guiding portion 41 is configured to pass through the positioning portion 31 of the guiding member 3, and the guiding portion 41 has a pulling end 411. Preferably, the holding end 411 protrudes beyond the positioning portion 31 of the guiding member 3; In addition, the ring segment 43 is used to connect the guiding member 3, and together with the guiding member 3, enclose the clamping space S', so as to penetrate the blood vessel through the clamping space S', and It is tightly bundled by the loop member 4. The guiding section 41, the positioning section 42 and the ring section 43 of the ring member 4 can be made of plastic materials of different hardness, in particular, the ring segment 43 is a rubber tube having a hardness of 60-70. It is better to control the blood flow when lifting the blood vessel around the circle.

The positioning section 42 of the present embodiment is formed by a plurality of latching blocks 421 spaced apart in series, so as to be fastened to the positioning portion 31 of the guiding member 3 by a slit 422 formed between any two adjacent latching blocks 421. . The number of the clamping blocks 421 may be a spherical or rectangular granular body, and the diameter of the locking block 421 is preferably larger than the locking width of the positioning portion 31 to avoid the positioning segment of the loop member 4. 42 is detached from the positioning portion 31 of the guide member 3.

Referring to FIG. 4 again, when the operation is performed, the doctor can use the same method as the above embodiment to circumscribe the blood vessel of the patient through the loop member 4, so that the loop member 4 The holding end 411 can pass through the wearing space 30 of the guiding member 3, and can be fastened to the positioning portion 31 of the guiding member 3 by the nip 422 of the positioning portion 42; or, as shown in FIG. The slat 422 of the positioning segment 42 is directly engaged with the positioning portion 31 of the guiding member 3, thereby restricting the blood vessel of the patient from penetrating into the clamping space S'. In this case, the doctor can adjust the size of the clamping space S ′ according to the equidistant sulcus 422 of the positioning segment 42 so as to be able to control the blood vessel thickness of different patients, thereby conveniently controlling the tight blood vessel of the ring member 4 . status.

In addition to the above, as shown in Figures 6 and 7, the intraluminal blood flow control kit of the present invention may also constitute another embodiment under the same technical concept, the intracavitary blood flow control kit comprising a guiding member 5 And a bundle of bundles 6. Circle The member 6 is arranged with the guiding member 5 to enclose a clamping space S" (see FIG. 7 for details), so as to penetrate the blood vessel from the clamping space S" and pass through the loop member. 6 Tightening.

The guiding member 5 is a piece made of biocompatible plastic, and the guiding member 5 has a positioning portion 51 for the collar member 6 to extend. In this embodiment, the positioning portion 51 is formed by a shrink hole 511 and a loose hole 512. The shrink hole 511 and the loose hole 512 are penetrated through the guiding member 5, and the shrink hole 511 is A gap 513 is defined between the loose holes 512 to connect the shrink hole 511 and the loose hole 512 to the two ends of the gap 513. The diameter of the shrinkage hole 511 is smaller than the diameter of the loose hole 512, and is slightly smaller than the diameter of the loop member 6.

As shown in FIG. 6, the loop member 6 of the present embodiment has a guiding portion 61, a positioning portion 62 and a ring segment 63, and the positioning portion 62 is also connected to the guiding portion. Between the segment 61 and the ring segment 63, the positioning portion 51 of the guiding member 5 is inserted and locked by the shrinking hole 511 of the positioning portion 51. Different from the previous embodiment, the positioning segments 62 of the loop member 6 are formed with a plurality of bumps 621 as shown in the figure, and any two of the bumps 621 have a spacing 622 therebetween. The equidistant spacing 622 between the bumps 621 fine tunes the size of the clamping space S".

The number of the bumps 621 can be an annular body as shown in FIG. 6 , and the loop body width is slightly larger than the diameter of the shrink hole 511 and slightly smaller than the diameter of the loose hole 512 . Therefore, when the number of the protrusions 621 extend through the shrinkage holes 511, they can be jammed by the spacing 622 between the two protrusions 621; and the loose holes 512 are relaxed, and the ring members 512 are released. The positioning section 62 can be slightly moved.

Note that the guide member 5 and the guiding portion 61 of the loop member 6 are positioned. The segment 62 and the ring segment 63 can be made of plastic materials of different hardness, in particular, the guiding member 5 is a block having a hardness of 90-100; the guiding segment 61 and the positioning segment 62 are of Shore hardness. 80 elastic tube, and preferably an elastic tube with a hardness of 80; the ring segment 63 is a rubber tube having a hardness of about 60 to 70, which is used to raise the circumference of the blood vessel by plastic materials of different hardness. Blood flow control efficiency.

According to the same method as the above-mentioned implementation concept, as shown in FIG. 7, the patient can control the blood vessel of the blood flow through the loop member 6 so that the loop member 6 can pass through the positioning portion 51 of the guiding member 5, and the protruding hole 511 is penetrated by the protrusion 621 of the positioning portion 62 to adjust the proper tightness degree, and then the interval 622 between the two bumps 621 is borrowed. The card is inserted into the shrink hole 511 to restrict the blood vessel of the patient from penetrating into the clamping space S". In this case, the doctor can fine tune the clip by the equidistant bump 621 of the positioning segment 62. The space S" is sized to accommodate the blood vessel thickness of different patients; even, during the endoscopic surgery, the loop member 513 can be guided by the gap 513 between the shrink hole 511 and the loose hole 512. The loose hole 512 is introduced through the gap 513 at an appropriate time to loosen the positioning section 62 of the loop member 6 from the latch of the shrink hole 511, and the loop member 6 can be slightly adjusted again. The degree of contraction, so that the doctor can loosen the tight blood vessels of the patient during the operation, avoiding prolonged compression of the blood vessels. The official function of the damage better.

In this way, the intracavitary blood flow control kit of the present invention not only facilitates the operation of the medical practitioner, but also adjusts the degree of tightening of the blood vessel around the ring by timely adjusting the blood vessel, and can easily loosen the blood vessel for a long time by the compression method. To achieve the effect of improving blood flow control. Furthermore, the intracavitary blood flow control kit of the present invention It is also possible to immediately encircle the blood vessels during the operation, and to tighten the blood vessels according to the different thickness of the blood vessels at equal intervals or equidistant intervals, thereby shortening the time required for the circulation of the blood vessels during the operation, and relatively improving the efficiency of the operation. In addition, the intracavitary blood flow control kit of the present invention does not need to rely on the additionally formed wounds, and can tightly bundle the blood vessels with a simple kit, thereby relatively reducing the tissue damage caused to the patient, and not only improving the convenience of the patient for postoperative care. And accelerate the healing of the wound, which can improve the traditional cumbersome control of blood flow from the abdominal cavity, and is conducive to the endoscopic surgery.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

〔this invention〕

1, 3‧‧‧ Guides

11, 31‧‧ ‧ Positioning Department

2, 4‧‧‧ circle pieces

41‧‧‧ guiding section

411‧‧‧ Pulling end

42‧‧‧ positioning segment

421‧‧‧ card block

422‧‧‧Crack

43‧‧‧circle

5‧‧‧Guide

51‧‧‧ Positioning Department

511‧‧‧ Shrinkage

512‧‧‧ pine hole

513‧‧‧ 接 gap

6‧‧‧tight parts

61‧‧‧ guiding section

62‧‧‧ positioning segment

621‧‧‧Bumps

622‧‧‧ interval

63‧‧‧ circle

S, S’, S” ‧ ‧ clamping space

A‧‧‧ cone bottom

Figure 1: Schematic diagram of the three-dimensional structure of the intraluminal blood flow control kit of the present invention.

Figure 2: Schematic diagram of the use of the intraluminal blood flow control kit of the present invention.

Figure 3 is a schematic perspective view showing another embodiment of the present invention.

Figure 4 is a schematic view showing the use of another embodiment of the present invention.

Fig. 5 is a schematic view showing still another use of another embodiment of the present invention.

Figure 6 is a perspective view showing a three-dimensional structure of still another embodiment of the present invention.

Figure 7 is a schematic view showing the use of still another embodiment of the present invention.

1‧‧‧Guide

11‧‧‧ Positioning Department

2‧‧‧Circle pieces

S‧‧‧Clamping space

Claims (13)

An intracavitary blood flow control kit includes: a guiding member having a positioning portion and a wearing space; and a ring member having one end connected to the guiding member and the other end piercing the guiding member Positioning portion and protruding out of the positioning portion; wherein the loop member is enclosed with the guiding member to enclose a clamping space for tightly fitting the blood vessel; the loop member is divided into a guiding a positioning section is connected between the guiding section and the circumference of the guiding section and is engaged with the positioning part of the guiding member for traversing the guiding section a positioning portion of the guiding member, the ring surrounding portion is configured to connect the guiding member, and surround the clamping space together with the guiding member; the guiding member has at least all groove-shaped positioning portions for The loop member extends into the wearing space and is clamped to the positioning portion. The intracavitary blood flow control kit of claim 1, wherein the positioning segment is formed by a plurality of clamping blocks, and the clamping blocks are fastened to the positioning portion of the guiding member. . The intracavitary blood flow control kit of claim 2, wherein the cassette blocks are spherical or rectangular granular bodies. The intracavitary blood flow control kit of claim 1, wherein the guiding section has a pulling end that protrudes beyond the positioning portion of the guiding member. The intracavitary blood flow control kit according to claim 1, wherein the ring is a rubber tube having a hardness of 60 to 70. An intraluminal blood flow control kit comprising: a guiding member having a positioning portion; and a ring member, one end of which is connected to the guiding member, and the other end of which is disposed through the positioning portion of the guiding member and protrudes out of the positioning portion; wherein The looping member and the guiding member enclose a clamping space for tightly fitting the blood vessel; the positioning portion is formed by a through hole and a loose hole, and the shrinking hole is A gap is formed between the loose holes, and a diameter of the shrink hole is smaller than a diameter of the loose hole and smaller than a diameter of the ring member; the ring member has a guiding portion, a positioning portion and a a positioning section is disposed between the guiding section and the winding section for extending through the positioning portion of the guiding member, and is locked by the shrinking hole of the positioning portion, the guiding The segment is used to traverse the positioning portion of the guiding member, and the ring segment is used for connecting the guiding member and enclosing the clamping space together with the guiding member. The intracavitary blood flow control kit of claim 6, wherein the positioning segments of the loop member are formed with a plurality of bumps at intervals, and each of the bumps has a space therebetween. The intracavitary blood flow control kit of claim 7, wherein the number of bumps is a ring body, and the ring body has a width wider than the narrow hole width and is smaller than the loose hole width. The intraluminal blood flow control kit according to any one of claims 6 to 8, wherein the guide member is a block having a hardness of 90 to 100. The intracavitary blood flow control kit according to any one of claims 6 to 8, wherein the guiding section and the positioning section are elastic tubes having a hardness of 70 to 90. The intracavitary blood flow control kit according to any one of claims 6 to 8, wherein the guiding section and the positioning section are bombs of 80 hardness Sexual tube. For example, the intraluminal blood flow control kit described in claim 6-8, wherein the ring is a rubber tube having a hardness of 60 to 70. The intraluminal blood flow control kit of claim 1 or 2 or 3 or 6 or 7 or 8 wherein the loop member is integrally formed to the guide member.