An intraoperative auxiliary protection device for tumors

Abstract

The present invention belongs to the technical field of medical devices and discloses an intraoperative auxiliary protection device for tumors, comprising: a positioning chassis, which is annular; a suction disc, which is rotatably supported on the positioning chassis; a plurality of fixing teeth, which are rotatably supported between the positioning chassis and the suction disc and can extend out of the positioning chassis. The positioning chassis includes: a soft pad disc; a fixing ring, one side of which is connected to the soft pad disc; and a plurality of limiting grooves, which are distributed in a circumferential array on the fixing ring. The protection device is arranged below the purse-string suture, and the sutured purse-string tissue is attracted by the suction disc, so that part of the tissue bulges, so as to avoid the intestinal contents containing tumors from flowing through the purse-string gap to the normal intestinal mucosa and avoid tumor contamination; at the same time, the tissue is fixed by the fixing teeth, and the suture effect is better. The fixing teeth in the present invention are of a telescopic structure and extend out after suture, which can enhance the fixing effect and ensure the sealing effect of the suction disc.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an intraoperative auxiliary protection device for tumors. Background Art

[0002] Colorectal cancer is the third most common malignant tumor in China, and its incidence has been rising rapidly in recent years. Among the treatment methods for colorectal cancer, colorectal surgery resection plays an important role.

[0003] In 1982, Heald put forward the epoch-making concept of "mesorectum", which defined the tissue surrounding the rectum within the visceral layer of the pelvic fascia, composed of loose connective tissue, containing abundant fat, lymph, nerve and vascular tissues, etc. as the mesorectum, and used this as the anatomical plane for the outer layer surgery of rectal cancer, put forward the theory of total mesorectal excision, and then put forward the principle of total mesorectal excision (TME), which standardized the operation of rectal cancer surgery and became the "gold standard" for the surgical treatment of rectal cancer. With the progress of laparoscopic instruments and techniques, transanal total mesorectal excision (TaTME) emerged as the times require and began to be clinically applied in 2010. However, some studies have shown that TaTME may increase the recurrence rate after tumor surgery. Norway announced a suspension of this surgery in 2018. Analyzing the reasons, in the current TaTME operation, the rectal mucosa is closed by purse-string suture to ensure that the tumor will not contaminate the normal distal tissue, but the purse-string suture cannot be completely closed, and the tumor in the intestine may still reach the normal tissue through the suture opening, and there is still a risk of contamination. The rectal transection and air flow changes during the perineal dissection operation may have an impact on local recurrence. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: attracting the purse-string suture tissue after suture through the adsorption disc, making part of the tissue bulge, and adsorbing the local intestinal mucosa through the negative pressure suction effect, and sucking out the intestinal contents that may contain tumors, so as to avoid intraoperative contamination of tumor tissues; and fixing with fixing teeth to fix the relevant tissue structures, further making up for the problem of insufficient mucosal suture.

[0005] To solve the above problems in the prior art, the present invention provides an intraoperative auxiliary protection device for tumors, including:

[0006] A positioning chassis, which is annular;

[0007] An adsorption disc, which is rotatably supported on the positioning chassis; the adsorption disc includes a handle with a hollow structure, and a suction device is connected to the tail of the handle;

[0008] A plurality of fixed teeth, which are rotatably mounted between the positioning chassis and the suction cup and can extend out of the positioning chassis.

[0009] To solve the above problems, the preferred technical solution adopted by the present invention is that the positioning chassis includes:

[0010] A soft cushion disk;

[0011] A fixed ring, one side of which is connected to the soft cushion disk;

[0012] A plurality of limiting grooves, which are distributed in a circumferential array on the fixed ring.

[0013] To solve the above problems, the preferred technical solution adopted by the present invention is that the fixed teeth include:

[0014] A rotating part, which is circular;

[0015] A tooth-connecting part, which has pointed teeth and is integrally connected to the rotating part.

[0016] To solve the above problems, the preferred technical solution adopted by the present invention is that the suction cup includes:

[0017] A suction ring;

[0018] A support spherical shell, which is a hemispherical shell structure, and the edge thereof is integrally connected to the suction ring;

[0019] A handle, which is arranged at the top of the support spherical shell and is integrally connected to the support spherical shell.

[0020] To solve the above problems, the preferred technical solution adopted by the present invention is that the suction ring has an annular groove.

[0021] To solve the above problems, the preferred technical solution adopted by the present invention is that the suction ring has rotating internal teeth, and the fixed teeth have external teeth meshing with the rotating internal teeth;

[0022] Wherein, when the suction ring rotates, it can drive the fixed teeth to rotate.

[0023] To solve the above problems, the preferred technical solution adopted by the present invention is that it further includes: an end suction cup, and the end suction cup is communicated with the suction device through a channel.

[0024] To solve the above problems, the preferred technical solution adopted by the present invention is that the support clamp includes:

[0025] A support rod, which is rotatably supported in the handle, the support rod is a hollow structure, and the middle through hole of the support rod forms the channel;

[0026] A first support part, which is rotatably supported at one end of the support rod;

[0027] A second support part, which is rotatably supported at the other end of the support rod;

[0028] An elastic unit, which is arranged between the first support part and the second support part.

[0029] To solve the above problems, the preferred technical solution adopted by the present invention is: the elastic unit is a helical spring, a rubber spring or a torsion spring.

[0030] To solve the above problems, the preferred technical solution adopted by the present invention is: the soft cushion disc is made of silica gel.

[0031] The intraoperative auxiliary protection device for tumors provided by the present invention includes a positioning chassis, a suction disc and a plurality of fixing teeth. Among them, the suction disc is rotatably supported on the positioning chassis, and the suction disc includes a handle with a hollow structure, and a suction device is connected to the tail of the handle; the fixing teeth are rotatably installed between the positioning chassis and the suction disc and can extend out of the positioning chassis. In this way, during use, the sutured purse-string suture tissue is attracted by the suction disc, so that part of the tissue bulges, and the local intestinal mucosa is adsorbed through the negative pressure suction effect, and the intestinal contents that may contain tumors are sucked out, so as to avoid intraoperative contamination of tumor tissues; and it is fixed by the fixing teeth to fix the relevant tissue structures, further making up for the problem of insufficient mucosal suture. At the same time, the fixing teeth in the present invention are of a telescopic structure and extend out after suturing, which can enhance the fixing effect and ensure the sealing effect of the suction disc.

[0032] In this way, the intraoperative auxiliary protection device for tumors provided by the present invention attracts the tissue to be sutured to bulge through negative pressure adsorption and fixes it with the fixing teeth, which is beneficial to the closed suture of the purse-string suture, avoids the tumors in the intestine from reaching normal tissues through the suture opening, and reduces the recurrence rate. Description of the Drawings

[0033] The following describes the preferred embodiments of the present invention with reference to the drawings, in which:

[0034] Figure 1 is a schematic structural diagram of a specific embodiment of the intraoperative auxiliary protection device for tumors provided by the present invention;

[0035] Figure 2 is a schematic structural diagram of the positioning chassis in the intraoperative auxiliary protection device for tumors provided by the present invention;

[0036] Figure 3 is a schematic structural diagram of the fixing teeth in the intraoperative auxiliary protection device for tumors provided by the present invention;

[0037] Figure 4 is a schematic structural diagram of the suction disc in the intraoperative auxiliary protection device for tumors provided by the present invention;

[0038] Figure 5 Schematic structural diagram of another embodiment of the tumor protection device in the intraoperative auxiliary protection device provided by the present invention;

[0039] Figure 6 Cross-sectional view of another embodiment of the tumor protection device in the intraoperative auxiliary protection device provided by the present invention.

[0040] Description of reference numerals:

[0041] Positioning chassis 110, suction cup 120, fixing teeth 130, suction ring 121, support spherical shell 122, handle 123, soft cushion plate 111, fixing ring 112, limiting groove 113, rotating part 131, tooth connecting part 132, end suction cup 140, support rod 141, first support part 142, second support part 143, elastic unit 144. Specific embodiments

[0042] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "in", "on", "under", "horizontal", "inside", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] Such as Figure 1As shown, based on the existing technical problems pointed out in the background art, the intraoperative auxiliary protection device for tumors provided by the present invention includes a positioning chassis 110, a suction disc 120, and a plurality of fixing teeth 130. The positioning chassis 110 is annular; the suction disc 120 is rotatably supported on the positioning chassis 110. The suction disc includes a handle 123 with a hollow structure, and the tail of the handle 123 is connected to a suction device. Through the setting of the hollow structure handle 123, on the one hand, it is convenient for hand-held operation and improves operation convenience. On the other hand, the hollow structure can be used as the gas flow pipeline of the suction device to form negative pressure in the suction disc 120, so as to adsorb and lift the intestinal mucosa, and can suck out the intestinal contents containing tumor tissues that may flow out through negative pressure. At the same time, the handle 123 also has a pulling effect and guides the resection range. As a preference, the positioning chassis 110 has an annular groove, and the suction disc 120 is rotatably supported on the annular groove and can rotate around the positioning chassis 110. The plurality of fixing teeth 130 are rotatably supported between the positioning chassis 110 and the suction disc 120 and can extend out of the positioning chassis 110.

[0046] During use, after suturing the intestinal wall mucosa, place the positioning chassis 110 on the area to be operated, and connect the vacuum pump (a specific form of the suction device) through the hollow handle of the suction disc 120. By performing a vacuum pumping operation, the suction disc adsorbs the rectal mucosa, playing a pulling role to make the local tissue bulge, and through the suction device connected by the hollow handle, use the negative pressure effect to suck away the possible pollutants that may flow out. At the same time, by rotating the handle 123 of the suction disc 120, the fixing teeth 130 can be rotated and extend out of the positioning chassis 110 to fix the mucosa, ensuring that the mucosa does not slide during the operation, thereby avoiding the tumor in the intestine from flowing into normal tissues through the suture opening and avoiding intraoperative contamination.

[0047] As Figure 2 shown, the positioning chassis 110 includes a soft cushion disc 111, a fixing ring 112, and a plurality of limiting grooves 113. One side of the fixing ring 112 is connected to the soft cushion disc 111; the plurality of limiting grooves 113 are distributed in a circular array on the fixing ring. The limiting grooves 113 can limit the rotation of the fixing teeth 130, and the rotation angle of the fixing teeth 130 is 0 - 110 degrees. The limiting grooves 113 play a role in fixing and limiting the rotation angle of the fixing teeth 130, and can hide the fixing teeth in the limiting grooves 113 of the fixing ring 112, or screw out the pointed teeth of the fixing teeth 130 from the fixing ring 112.

[0048] As Figure 3 shown, the fixing teeth 130 include a rotating part 131 and a tooth connecting part 132. The rotating part 131 is circular; the tooth connecting part 132 has pointed teeth and is integrally connected to the rotating part 131. As a preference, the tooth connecting part 132 also has auxiliary pointed teeth to play an auxiliary fixing role.

[0049] As Figure 4As shown, in addition to the above-mentioned handle 123, the suction disc 120 further includes a suction ring 121 and a support spherical shell 122; among them, the support spherical shell 122 is a hemispherical shell structure, and its edge is integrally connected to the suction ring 121; the handle 123 is arranged on the top of the support spherical shell 122 and is integrally connected to the support spherical shell 122. As a preference, the handle 123 further has a socket fixed tube, which can connect the connection hose of the vacuum pump. To ensure the sealing performance, a detachable tube joint with better sealing performance can be set.

[0050] Furthermore, the above-mentioned suction ring 121 has an annular groove, which is beneficial to adsorb the tissue to be operated on. As a preference, the outer side of the suction ring 121 is made of soft silicone to avoid damaging the surgical tissue and reduce the pollution generated during the operation. The suction ring 121 has a rotating internal tooth, and the fixed tooth 130 has an external tooth meshing with the rotating internal tooth; when the suction ring 121 rotates, it can drive the fixed tooth 130 to rotate. The meshing method is beneficial to operation, and the doctor can complete it through single-person operation during the operation.

[0051] In another embodiment, as Figure 5 and Figure 6 shown, to ensure that the anal canal is fully dilated, an end suction cup 140 can also be arranged in the handle 123, and the end suction cup 140 is communicated with the suction device through a channel. As a preference, the end suction cup 140 is sleeved in the handle 123 and can slide along the radial direction of the handle. The end suction cup 140 adsorbs the intestinal mucosa after suturing the purse-string suture. The end suction cup 140 is hollow and is a device that can be externally connected to the suction device.

[0052] Specifically, the end suction cup 140 includes a support rod 141, a first support part 142, a second support part 143 and an elastic unit 144. Among them, the support rod is a hollow structure, and the middle through hole of the support rod forms the channel. The support rod 141 can slide in the handle 123; the first support part 142 can be rotatably supported at one end of the support rod 141; the second support part 143 can be rotatably supported at the other end of the support rod 141; the elastic unit 144 is arranged between the first support part 142 and the second support part 143.

[0053] Among them, the elastic unit 144 is a helical spring, a rubber spring or a torsion spring. As a preference, the soft pad disc 111 is made of silicone, which can deform according to the shape of the human surgical site, play a fitting role, is more beneficial to the sealing effect, and ensures the pulling effect of the tissue during the operation.

[0054] During the actual use process, the above-mentioned suction disc and the fixed disc can be an integral structure. Or, when the suction disc and the fixed disc are a split structure, the distance between the two should be ensured to be small to meet the use requirements of specific parts. At the same time, in the actual product, as Figures 1-4As shown, in order to simplify the structure, the end suction cup 140 structure may not be provided, and the pollutants can be sucked out only by the suction cup 120 and the hollow handle thereof, and the tissue can be fixed by the fixing teeth.

[0055] In the above specific embodiments, the intraoperative auxiliary protection device provided by the present invention sucks the sutured purse-string tissue through the suction cup, so that part of the tissue bulges, and the local intestinal mucosa is adsorbed by the negative pressure suction, and the intestinal contents that may contain tumors are sucked out, thereby avoiding intraoperative contamination of the tumor tissue; and the fixing teeth are used for fixation to fix the relevant tissue structures, further making up for the problem of insufficient mucosal suture. At the same time, the fixing teeth in the present invention are of a telescopic structure and extend out after suturing, which can enhance the fixing effect and ensure the sealing effect of the suction cup.

[0056] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An intraoperative auxiliary protection device for tumors, characterized in that, Comprising: A positioning chassis, which is annular; A suction disc, which is rotatably supported on the positioning chassis; the suction disc includes a handle with a hollow structure, and a suction device is connected to the tail of the handle; A plurality of fixed teeth, which are rotatably installed between the positioning chassis and the suction disc and can extend out of the positioning chassis; The positioning chassis includes: A soft pad disc; A fixing ring, one side of which is connected to the soft pad disc; A plurality of limiting grooves, which are distributed in a circumferential array on the fixing ring; The fixed teeth include: A rotating part, which is circular; A tooth-connecting part, which has pointed teeth and is integrally connected to the rotating part; The suction disc includes: A suction ring; A supporting spherical shell, which is a hemispherical shell structure, and its edge is integrally connected to the suction ring; A handle, which is arranged on the top of the supporting spherical shell and is integrally connected to the supporting spherical shell; The suction ring has an annular groove, the suction ring has rotating internal teeth, and the fixed teeth have external teeth meshing with the rotating internal teeth; Wherein, when the suction ring rotates, it can drive the fixed teeth to rotate.

2. The intraoperative auxiliary protection device for tumors according to claim 1, characterized in that, It further includes: An end suction cup, which is connected to the suction device through a channel.

3. The intraoperative auxiliary protection device for tumors according to claim 2, characterized in that, The end suction cup includes: A support rod, which is rotatably supported in the handle, the support rod is a hollow structure, and the middle through hole of the support rod forms the channel; A first support part, which is rotatably supported at one end of the support rod; A second support part, which is rotatably supported at the other end of the support rod; An elastic unit, which is arranged between the first support part and the second support part.

4. The intraoperative auxiliary protection device for tumors according to claim 3, characterized in that, The elastic unit is a helical spring, a rubber spring or a torsion spring.

5. The intraoperative auxiliary protection device for tumors according to claim 1, characterized in that, The soft pad disc is made of silica gel.

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