Improved laparoscope trocar cannula fixing device

Abstract

The utility model discloses an improved laparoscope trocar cannula fixing device which is characterized in that a trocar cannula is provided with an abdominal wall clamping assembly, the abdominal wall clamping assembly comprises a fixed basic strip fastened on the outer surface of the trocar cannula, the front end part of the fixed basic strip is fastened with a front side hinge seat, and the front side hinge seat is hinged with a front side clamping piece; a movable sliding seat is installed at the rear end of the fixed basic strip in a sliding mode, a rear side hinge seat is installed on the movable sliding seat in a fastening mode, and a rear side clamping piece is installed on the rear side hinge seat in a hinged mode. A self-limiting mechanism is arranged between the movable sliding seat and the fixed basic strip; when the abdominal wall clamping assembly clamps the abdominal wall of the edge of a surgical incision of a patient, the front side clamping piece and the rear side clamping piece are overturned to the clamping operation position, the front side clamping piece is located on the inner side of the abdominal wall, the rear side clamping piece is located on the outer side of the abdominal wall, and the front side clamping piece and the rear side clamping piece are matched and jointly clamp the abdominal wall. By means of the structural design, the novel infusion support has the advantages of being novel in structural design and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an improved laparoscopic trocar sleeve fixing device. Background Art

[0002] During laparoscopic surgery, a small incision is first made at the patient's waist, a trocar cannula is inserted into the surgical incision, and a laparoscope is placed in the trocar cannula for surgery.

[0003] The patent number is: ZL202121798743.X, and the patent name is: A Chinese utility model patent for a new type of laparoscopic trocar abdominal wall automatic fixation device, which essentially discloses a laparoscopic trocar sleeve fixation device; specifically, the new type of laparoscopic trocar abdominal wall automatic fixation device includes a T-shaped main body and a conical inner sleeve, the T-shaped main body includes a hand-held part and a handle rod part, the hand-held part and the handle rod part are coaxially penetrated with an inner cavity channel, the outer wall of the handle rod part is threadedly connected with a locking nut, and the outer wall of the lower end of the handle rod part is circumferentially provided with a plurality of through holes, and a blade assembly is movably provided in the through hole; the inner sleeve is movably provided in the inner cavity channel and fits with the blade assembly, the inner sleeve can slide up and down along the inner cavity channel to drive the blade assembly to retreat or extend out of the through hole, and a trocar channel tube is provided in the inner sleeve.

[0004] When the above-mentioned new laparoscopic trocar abdominal wall automatic fixation device is used, the trocar channel tube is first inserted into the inner sleeve, and the adjusting screw is rotated inwardly to make the adjusting screw press against the trocar channel tube, and then the handle rod is inserted into the abdominal cavity from the surgical incision; then the inner sleeve is moved downward, and the blade is pushed out of the through hole by using the gradually increasing outer diameter surface, and when the inner sleeve moves downward until it can no longer move, the locking screw is rotated inwardly to make the locking screw press against the inner sleeve; then the handle rod is pulled outward to make the blade fit tightly against the inner side of the abdominal wall, and then the locking nut is rotated to make it fit close to the outer side of the abdominal wall, thereby fixing the trocar channel tube to the abdominal wall.

[0005] It should be pointed out that the above-mentioned new laparoscopic trocar automatic abdominal wall fixation device has the following defects. Specifically: when fixation is achieved by clamping the abdominal wall, the blade needs to be driven out through the inner sleeve first, and when the inner sleeve is pushed into place, the inner sleeve needs to be tightened with the help of a locking screw; in addition, after the blade is tightly attached to the inner side of the abdominal wall, the locking nut is rotated and made to fit the locking nut to the outer side of the cavity wall. The entire operation process is complicated, that is, there is a defect of inconvenience in use. Utility Model Content

[0006] The utility model aims to provide an improved laparoscopic trocar sleeve fixing device in view of the deficiencies in the prior art. The improved laparoscopic trocar sleeve fixing device has novel structural design and is easy to use.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0008] An improved laparoscopic trocar sleeve fixing device comprises a trocar sleeve, wherein the trocar sleeve is provided with an abdominal wall clamping assembly;

[0009] The abdominal wall clamping assembly includes a fixed base strip fixedly mounted on the outer surface of the trocar sleeve, a front hinge seat fixedly mounted on the front end of the fixed base strip, and a front clamping piece hingedly mounted on the front hinge seat;

[0010] A movable slide is slidably mounted on the rear end of the fixed base strip, a rear hinged seat is fastened to the movable slide, and a rear clamping piece is hingedly mounted on the rear hinged seat; a self-limiting mechanism is mounted between the movable slide and the fixed base strip;

[0011] When the abdominal wall clamping assembly clamps the abdominal wall at the edge of the patient's surgical incision, the front clamping piece and the rear clamping piece are respectively flipped to the clamping operation position, the front clamping piece is located on the inner side of the abdominal wall and the rear clamping piece is located on the outer side of the abdominal wall, and the front clamping piece and the rear clamping piece cooperate with each other and clamp the abdominal wall together.

[0012] Wherein, the movable slide seat comprises a slide seat base, and the rear hinge seat is fastened and installed on the slide seat base;

[0013] The left and right ends of the slide base are respectively provided with guide parts, and the fixed base strips are respectively provided with guide grooves extending along the front-rear direction corresponding to each guide part, and each guide part of the movable slide is respectively slidably installed in the guide groove on the corresponding side.

[0014] Wherein, the movable slide is an elastic rubber part, and the self-limiting mechanism is located between the slide base and the fixed base strip;

[0015] The self-limiting mechanism comprises a fixed sliding tooth arranged on the surface of the fixed base strip and a movable sliding tooth arranged on the base of the sliding seat, and the fixed sliding tooth is meshed with the movable sliding tooth.

[0016] Wherein, one end of the front clamping piece is hinged to the front hinge seat through a pivot, and a front stop protrusion is provided at the end of the front clamping piece on one side of the pivot;

[0017] When the front clamping piece is turned over to the clamping operation position, the front clamping piece is perpendicular to the fixed base strip, and the front stop protrusion abuts against the front hinge seat.

[0018] Wherein, one end of the rear clamping piece is hinged to the rear hinge seat through a pivot, and a rear stop protrusion is provided at the end of the rear clamping piece on one side of the pivot;

[0019] When the rear clamping piece is turned over to the clamping operation position, the rear clamping piece is perpendicular to the fixed base strip, and the rear stop protrusion abuts against the rear hinge seat.

[0020] Wherein, the fixed base strip is welded and fixed to the outer surface of the trocar sleeve.

[0021] Compared with the prior art, the present invention has the following beneficial effects, specifically:

[0022] 1. When the trocar sleeve is fixed by clamping the abdominal wall, the utility model only has the flipping action of the clamping piece and the sliding action of the movable slide seat; compared with the prior art, the utility model is more convenient in operation and has better convenience of use;

[0023] 2. When the movable slide slides into place, the self-limiting mechanism limits the movable slide and keeps it in the required position. At this time, the movable slide will not move relative to the fixed base bar without a large external force, which can effectively avoid the problem of slipping when clamping the abdominal wall;

[0024] 3. Therefore, the improved laparoscopic trocar sleeve fixing device of the utility model has the advantages of novel structural design and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below with reference to the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0026] Figure 1 It is a schematic structural diagram of the utility model when each clamping piece is located at an initial position.

[0027] Figure 2 It is a schematic structural diagram of the abdominal wall clamping assembly of the utility model when each clamping piece is located at an initial position.

[0028] Figure 3 It is a schematic structural diagram of the utility model when each clamping piece is located at the clamping operation position.

[0029] Figure 4 It is a schematic structural diagram of the abdominal wall clamping assembly of the utility model when each clamping piece is located at the clamping operation position.

[0030] Figure 5 It is a structural schematic diagram of the movable slide seat of the utility model.

[0031] exist Figures 1 to 5 Included are:

[0032] 1-trocar sleeve; 2-abdominal wall clamping assembly; 3-fixed base strip; 31-guide slide groove; 41-front articulated seat; 42-front clamping plate; 43-front stop protrusion; 51-movable slide seat; 511-slide seat base; 512-guide part; 52-rear articulated seat; 53-rear clamping plate; 6-self-limiting mechanism; 61-fixed slide tooth; 62-movable slide tooth. DETAILED DESCRIPTION

[0033] The present invention will be described below in conjunction with specific implementation methods.

[0034] Embodiment 1, as Figure 1 and Figure 3 As shown, an improved laparoscopic trocar sleeve fixing device includes a trocar sleeve 1, and the trocar sleeve 1 is equipped with an abdominal wall clamping component 2.

[0035] Among them, Figures 1 to 4 As shown, the abdominal wall clamping assembly 2 includes a fixed base strip 3 fastened to the outer surface of the trocar sleeve 1, and a front hinge seat 41 is fastened to the front end of the fixed base strip 3, and a front clamping piece 42 is hingedly installed on the front hinge seat 41. The fixed base strip 3 is welded and fixed to the outer surface of the trocar sleeve 1; of course, the above-mentioned welding fixing method does not constitute a limitation to the first embodiment, that is, the fixed base member of the first embodiment can also be fastened and installed on the outer surface of the trocar sleeve 1 by glue bonding.

[0036] Further, such as Figures 1 to 4 As shown, a movable slide 51 is slidably installed at the rear end of the fixed base strip 3, a rear hinge seat 52 is fastened to the movable slide 51, and a rear clamping piece 53 is hingedly installed on the rear hinge seat 52; a self-limiting mechanism 6 is installed between the movable slide 51 and the fixed base strip 3.

[0037] The improved laparoscopic trocar sleeve fixing device of the first embodiment is described in detail below in combination with the specific action process, and the specific steps include:

[0038] Step a: insert the trocar cannula 1 into the abdominal cavity through the surgical incision of the patient. During the process of inserting the trocar cannula 1, Figure 1 and Figure 2 As shown, the front clamping piece 42 and the rear clamping piece 53 are respectively located at the initial positions, and the front clamping piece 42 and the rear clamping piece 53 are not turned outward;

[0039] Step b: After the front clamping piece 42 of the abdominal wall clamping assembly 2 enters the patient's abdominal cavity along with the trocar sleeve 1, the medical staff flips the front clamping piece 42 outward and turns the front clamping piece 42 to the clamping operation position, such as Figure 3 and Figure 4 As shown, the front clamping piece 42 located at the clamping operation position is perpendicular to the fixed base strip 3;

[0040] Step c: After the front clamping piece 42 in the patient's abdominal cavity is turned over to the clamping operation position, the trocar sleeve 1 is pulled outward for a distance so that the front clamping piece 42 abuts against the abdominal wall at the edge of the patient's surgical incision, and then the rear clamping piece 53 is turned outward and turned over to the clamping operation position. Figure 3 and Figure 4 As shown, the rear clamping piece 53 located at the clamping operation position is perpendicular to the fixed base strip 3;

[0041] Step d, after the rear clamping piece 53 located outside the patient's abdominal cavity is flipped to the clamping operation position, the movable slide 51 is moved forward and the rear clamping piece 53 moves forward synchronously with the movable slide 51. After the rear clamping piece 53 slides forward into position, the front clamping piece 42 cooperates with the rear clamping piece 53 and clamps the abdominal wall together, thereby achieving the position fixation of the trocar sleeve 1.

[0042] It should be emphasized that when the movable slide 51 moves forward to the position, the self-limiting mechanism 6 limits the movable slide 51 and holds it at the desired position. At this time, the movable slide 51 will not move relative to the fixed base bar 3 without the action of a large external force, which can effectively avoid the problem of slipping when clamping the abdominal wall.

[0043] It should be further emphasized that when the trocar sleeve 1 is fixed by clamping the abdominal wall, the improved laparoscopic trocar sleeve fixing device of the first embodiment only has the flipping action of the clamping plate and the sliding action of the movable slide 51; compared with the prior art, the first embodiment is more convenient in operation and has better convenience of use.

[0044] Based on the above, it can be seen that through the above structural design, the improved laparoscopic trocar sleeve fixing device of the first embodiment has the advantages of novel structural design and easy use.

[0045] Embodiment 2, as Figure 2 , Figure 4 as well as Figure 5 As shown, the difference between the second embodiment and the first embodiment is that the movable slide seat 51 includes a slide seat base 511 , and the rear hinge seat 52 is fastened and installed on the slide seat base 511 .

[0046] Among them, the left and right ends of the sliding seat base 511 are respectively provided with guide parts 512, and the fixed base bar 3 is respectively provided with guide grooves 31 extending along the front and rear directions corresponding to each guide part 512, and each guide part 512 of the movable sliding seat 51 is respectively slidably installed in the guide grooves 31 on the corresponding sides.

[0047] By the cooperation between the guide portion 512 and the guide slot 31 , the second embodiment can ensure that the movable slide 51 moves stably and accurately relative to the fixed base bar 3 .

[0048] Embodiment three, as Figure 2 , Figure 4 as well as Figure 5 As shown, the difference between the third embodiment and the second embodiment is that the movable slide 51 is an elastic rubber part, and the self-limiting mechanism 6 is located between the slide base 511 and the fixed base bar 3.

[0049] The self-limiting mechanism 6 includes a fixed sliding tooth 61 arranged on the surface of the fixed base bar 3 and a movable sliding tooth 62 arranged on the slide base 511 , and the fixed sliding tooth 61 is meshed with the movable sliding tooth 62 .

[0050] As for the fixed sliding teeth 61 and the movable sliding teeth 62 of the third embodiment, both are similar to the planar rack structure, and the two are meshed and connected in a manner similar to the meshing of gears.

[0051] In the process of moving the movable slide 51 relative to the fixed base bar 3, since the movable slide 51 is an elastic rubber structure, the movable slide 51 will adaptively deform during movement and cause the engagement between the movable sliding teeth 62 and the fixed sliding teeth 61 to disengage; after the movable slide 51 moves to the desired position, the movable sliding teeth 62 and the fixed sliding teeth 61 return to the engaged state, and the engaged movable sliding teeth 62 and the fixed sliding teeth 61 have self-limiting capabilities. In the absence of a large external force, the fixed sliding teeth 61 and the movable sliding teeth 62 will not move relative to each other, thereby limiting the movable slide 51 and keeping the movable slide 51 at the desired position.

[0052] Embodiment 4, as Figure 2 and Figure 4 As shown, the difference between this fourth embodiment and the first embodiment is that one end of the front side clamping piece 42 is hinged to the front side hinge seat 41 through a pivot, and the front side clamping piece 42 is provided with a front side stop protrusion 43 at the end on one side of the pivot; when the front side clamping piece 42 is flipped to the clamping operation position, the front side clamping piece 42 is perpendicular to the fixed base strip 3, and the front side stop protrusion 43 is abutted and limited to the front side hinge seat 41.

[0053] One end of the rear clamping piece 53 is hinged to the rear articulated seat 52 through a pivot, and a rear stop protrusion is provided at the end of the rear clamping piece 53 on one side of the pivot; when the rear clamping piece 53 is flipped to the clamping operation position, the rear clamping piece 53 is perpendicular to the fixed base strip 3, and the rear stop protrusion is abutted and limited to the rear articulated seat 52.

[0054] The front stop block 43 and the rear stop block of the fourth embodiment have the function of enabling the front clamping piece 42 and the rear clamping piece 53 to be stably and accurately flipped to the clamping operation position, so as to improve the stability and convenience during use.

[0055] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. An improved laparoscopic trocar sleeve fixing device, comprising a trocar sleeve (1), wherein the trocar sleeve (1) is provided with an abdominal wall clamping assembly (2); Features: The abdominal wall clamping assembly (2) comprises a fixed base strip (3) fixedly mounted on the outer surface of the trocar sleeve (1), a front hinge seat (41) fixedly mounted on the front end of the fixed base strip (3), and a front clamping piece (42) hingedly mounted on the front hinge seat (41); A movable slide seat (51) is slidably mounted on the rear end of the fixed base strip (3), a rear hinge seat (52) is fixedly mounted on the movable slide seat (51), and a rear clamping piece (53) is hingedly mounted on the rear hinge seat (52); a self-limiting mechanism (6) is mounted between the movable slide seat (51) and the fixed base strip (3); When the abdominal wall clamping assembly (2) clamps the abdominal wall at the edge of the surgical incision of the patient, the front clamping piece (42) and the rear clamping piece (53) are respectively flipped to the clamping operation position, the front clamping piece (42) is located on the inner side of the abdominal wall and the rear clamping piece (53) is located on the outer side of the abdominal wall, and the front clamping piece (42) and the rear clamping piece (53) cooperate with each other and clamp the abdominal wall together.

2. The improved laparoscopic trocar sleeve fixing device according to claim 1, characterized in that: The movable slide seat (51) comprises a slide seat base (511), and the rear hinge seat (52) is fixedly mounted on the slide seat base (511); The left and right ends of the slide base (511) are respectively provided with guide portions (512); the fixed base bar (3) is respectively provided with guide grooves (31) extending along the front-rear direction corresponding to each guide portion (512); and each guide portion (512) of the movable slide (51) is respectively slidably installed in the guide grooves (31) on the corresponding side.

3. The improved laparoscopic trocar sleeve fixing device according to claim 2, characterized in that: The movable slide seat (51) is an elastic rubber part, and the self-limiting mechanism (6) is located between the slide seat base (511) and the fixed base strip (3); The self-limiting mechanism (6) comprises a fixed sliding tooth (61) arranged on the surface of the fixed base strip (3) and a movable sliding tooth (62) arranged on the slide seat base (511), and the fixed sliding tooth (61) is meshed with the movable sliding tooth (62).

4. The improved laparoscopic trocar sleeve fixing device according to claim 1, characterized in that: One end of the front clamping piece (42) is hinged to the front hinge seat (41) via a pivot, and a front stop protrusion (43) is provided at the end of the front clamping piece (42) on one side of the pivot. When the front clamping piece (42) is flipped to the clamping operation position, the front clamping piece (42) is perpendicular to the fixed base strip (3), and the front stop protrusion (43) abuts against the front hinge seat (41).

5. The improved laparoscopic trocar sleeve fixing device according to claim 1, characterized in that: One end of the rear clamping piece (53) is hinged to the rear hinge seat (52) via a pivot, and a rear stop protrusion is provided at the end of the rear clamping piece (53) on one side of the pivot; When the rear clamping piece (53) is flipped to the clamping operation position, the rear clamping piece (53) is perpendicular to the fixed base strip (3), and the rear stop protrusion abuts against the rear hinge seat (52).

6. The improved laparoscopic trocar sleeve fixing device according to claim 1, characterized in that: The fixed base strip (3) is welded and fixed to the outer surface of the trocar sleeve (1).

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