Portable expansion drag hook for hepatobiliary surgery

Abstract

The utility model discloses a portable hepatobiliary surgery dilation drag hook, and particularly relates to the technical field of dilators, the portable hepatobiliary surgery dilation drag hook comprises a supporting frame and a dilation assembly, the dilation assembly is located in the supporting frame, and the dilation assembly comprises four hook claws, four sliding blocks, two lead screws, a plurality of first extrusion sleeves and four second extrusion sleeves. One sides of the four sliding blocks are fixedly connected with the four hook claws correspondingly, the four sliding blocks are movably arranged on the two lead screws in a sleeving mode correspondingly, and the multiple first extrusion sleeves and the four second extrusion sleeves are in threaded connection with the two lead screws correspondingly. The hooking claws are placed on the top of the transverse plate, the sliding block is limited and fixed through the two first extrusion sleeves, finally the lead screw is limited and fixed through the two second extrusion sleeves, in the same way, the corresponding number of the hooking claws are selected according to the length of an incision of a hepatobiliary surgery, the structure is light, operation is easy, and the operation efficiency is high. The number of the hook claws can be conveniently adjusted according to the length of the notch.

Description

TECHNICAL FIELD

[0001] The utility model relates to dilator technical field more specifically, the utility model relates to portable liver and gall operation dilating drag hook. BACKGROUND

[0002] In liver and gall operation, because the position of liver and gallbladder is deep, and there are many important blood vessels and nerves around, therefore need to use dilator to expand the operation field of view. Dilator is usually composed of one or more blades, which can be inserted into the tissue around the liver or gallbladder, and the operation field of view is expanded by moving. In the prior art, the expansion of the window is realized by manually pulling the hook body into the flesh tissue, which can be limited by the space around the operating table, so that the operation space is easily reduced by medical staff when the doctor operates, affecting the operation.

[0003] Through the search, the patent with the announcement number CN219147711U discloses a surgical drag hook, which is hung on the mounting position on the operating table through the supporting assembly, and two hook claws are inserted into the incision of the patient, so that the rotation of the two-way screw rod is driven by the rotation of the knob, so that the two sliders are synchronously driven away from each other, and the expansion of the window is realized, so as to facilitate the operation of medical staff, and the space around the operating table is greatly reduced, which is convenient for medical staff to move and facilitates the operation, and has high practicability.

[0004] The above-mentioned surgical drag hook can expand the incision by inserting two hook claws into the incision of the patient and rotating the knob to drive the two hook claws away from each other, but when the incision is long, the small and few hook claws cannot well fit the incision, and it is inconvenient to adjust the number of hook claws according to the length of the incision, so the use effect is poor. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a portable liver and gall operation dilating drag hook, which aims at solving the problems in the above-mentioned background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a portable liver and gall operation dilating drag hook, which comprises a supporting frame and a dilating assembly, and the dilating assembly is located in the inside of the supporting frame, the dilating assembly comprises four hook claws, four sliders, two screw rods, a plurality of first extrusion sleeves and four second extrusion sleeves, one side of each of the four sliders is fixedly connected with one of the four hook claws, and the four sliders are movably sleeved on the two screw rods, the plurality of first extrusion sleeves and the four second extrusion sleeves are threadedly connected with the two screw rods, one side of each of the plurality of first extrusion sleeves is in contact with one of the four sliders, a moving assembly is arranged in the inside of the supporting frame, and the moving assembly comprises two cross plates, four vertical plates, a forward and reverse screw rod and a sliding rod.

[0007] Further, the front and rear ends of the positive and negative screw rod are movably connected with the support frame through bearings, the front and rear ends of the slide rod are fixedly connected with the support frame, and the positive and negative screw rod and the slide rod penetrate through the two horizontal plates, the bottom ends of the four vertical plates are fixedly connected with the two horizontal plates respectively, and the four vertical plates are movably sleeved on the two screw rods respectively.

[0008] Further, the front side of the support frame movably provided with a handle, and the rear side of the handle is fixedly connected with the positive and negative screw rod.

[0009] It can be seen that, in the above technical scheme, the positive and negative screw rod is driven to rotate conveniently.

[0010] Further, the outer side of the handle movably provided with a protective sleeve, the inside of the protective sleeve is screw-connected with an external thread sleeve, and the external thread sleeve is fixedly installed on the front side of the support frame.

[0011] It can be seen that, in the above technical scheme, the handle can be protected by the protective sleeve.

[0012] Further, one side of the four vertical plates is fixedly connected with an indicator plate, and the top end of the support frame is fixedly connected with a scale on both side edges.

[0013] It can be seen that, in the above technical scheme, the moving distance of the two horizontal plates can be observed.

[0014] Further, the front and rear sides of the support frame and the positions close to the four corners are provided with through holes.

[0015] It can be seen that, in the above technical scheme, the bandage is passed through the four through holes, and the support frame is connected with the body of the patient through the bandage.

[0016] Further, the front and rear sides of the support frame and the positions close to the four corners are provided with through holes.

[0017] It can be seen that, in the above technical scheme, the two mounting plates are fixedly connected through bolts, so that the support frame can be mounted on the external support.

[0018] The technical effects and advantages of the utility model are as follows:

[0019] 1. The utility model discloses a convenient structure, simple operation, convenient to adjust the number of claws according to the length of incision, and good use effect.

[0020] 2. The utility model discloses a rotating handle can drive positive and negative screw rod rotation, and the positive and negative screw rod can drive two horizontal plates to move towards each other, thereby drive four vertical plates to move horizontally, and further drive four hook claws to move horizontally, and simultaneously four vertical plates drive four indicator plates to move horizontally, and according to four indicator plates and two scales, the distance that two horizontal plates move can be observed, and the structure is simple, and the width of the incision expansion is conveniently controlled. BRIEF DESCRIPTION OF DRAWINGS

[0021] The structure, proportion, size etc. shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading of the person skilled in the art, and not used to limit the limiting conditions that the utility model can be implemented, so it does not have the substantial meaning of technology, and any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effect and purpose that the utility model can produce, should still fall within the range covered by the technical content disclosed by the utility model.

[0022] Figure 1 It is the overall structure schematic view of the utility model;

[0023] Figure 2 It is the overall structure bottom view of the utility model;

[0024] Figure 3 It is the support frame and protective sleeve assembly structure schematic view of the utility model;

[0025] Figure 4 It is the mobile assembly structure schematic view of the utility model;

[0026] Figure 5 It is the expansion assembly structure schematic view of the utility model.

[0027] In the drawing: 1, support frame; 2, expansion assembly; 3, mobile assembly; 4, mounting plate; 5, through hole; 6, external thread sleeve; 7, protective sleeve; 8, scale; 201, hook claw; 202, sliding block; 203, screw rod; 204, first extrusion sleeve; 205, second extrusion sleeve; 301, horizontal plate; 302, vertical plate; 303, positive and negative screw rod; 304, sliding rod; 305, handle; 306, indicator plate. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described below by specific concrete examples, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Referring to the drawings Figures 1-5 The portable liver and gallbladder surgery expansion drag hook of the embodiment comprises a support frame 1 and an expansion assembly 2, the expansion assembly 2 is located inside the support frame 1, the expansion assembly 2 comprises four claws 201, four sliding blocks 202, two lead screws 203, a plurality of first extrusion sleeves 204 and four second extrusion sleeves 205, one side of each of the four sliding blocks 202 is fixedly connected with one of the four claws 201, and each of the four sliding blocks 202 is movably sleeved on one of the two lead screws 203, the plurality of first extrusion sleeves 204 and the four second extrusion sleeves 205 are threadedly connected with the two lead screws 203 respectively, and one side of each of the plurality of first extrusion sleeves 204 is in contact with one of the four sliding blocks 202, the inside of the support frame 1 is provided with a moving assembly 3, the moving assembly 3 comprises two cross plates 301, four vertical plates 302, a reversible lead screw 303 and a sliding rod 304.

[0030] Further, the front and rear ends of the reversible lead screw 303 are movably connected with the support frame 1 through bearings, the front and rear ends of the sliding rod 304 are fixedly connected with the support frame 1, and the reversible lead screw 303 and the sliding rod 304 penetrate through the two cross plates 301, the bottom ends of the four vertical plates 302 are fixedly connected with the two cross plates 301 respectively, and the four vertical plates 302 are movably sleeved on the two lead screws 203 respectively, a handle 305 is movably arranged on the front side of the support frame 1, the rear side of the handle 305 is fixedly connected with the reversible lead screw 303, a protective sleeve 7 is movably arranged on the outer side of the handle 305, an external thread sleeve 6 is threadedly connected in the inside of the protective sleeve 7, and the external thread sleeve 6 is fixedly installed on the front side of the support frame 1, each of the four vertical plates 302 is fixedly connected with an indicator plate 306 on one side, and a scale 8 is fixedly connected with the support frame 1 on the top end of both sides.

[0031] Among them, the handle 305 can be protected by the protective sleeve 7, rotating the protective sleeve 7 and moving it on the external thread sleeve 6, when the protective sleeve 7 is away from the external thread sleeve 6, rotating the handle 305 can drive the reversible lead screw 303 to rotate, because the two cross plates 301 are threadedly connected with the reversible lead screw 303, the sliding rod 304 limits the rotation of the two cross plates 301, so the reversible lead screw 303 can drive the two cross plates 301 to move towards each other, thereby driving the four vertical plates 302 to move horizontally, and further driving the four claws 201 to move horizontally, at the same time, the four vertical plates 302 drive the four indicator plates 306 to move horizontally, according to the four indicator plates 306 and the two scales 8, the moving distance of the two cross plates 301 can be observed, the structure is simple, and the width of the incision expansion can be conveniently controlled.

[0032] Further, through holes 5 are formed on the front and rear sides of the support frame 1 and close to the four corners, and mounting plates 4 are fixedly connected with the support frame 1 on the front and rear sides and at the center positions.

[0033] The use method of the embodiment is as follows:

[0034] In use, the support frame 1 can be installed on the external support by fixing the two mounting plates 4 through bolts, or the bandage is passed through the four through holes 5, and the support frame 1 is connected with the patient's body through the bandage, the claws 201 are placed on the top of the cross plates 301, the cross plates 301 can limit the claws 201, then one end of the lead screw 203 is passed through the sliding block 202, and the sliding block 202 is limited and fixed through the two first extrusion sleeves 204, and the other sliding block 202 is installed in the same way, finally the lead screw 203 is limited and fixed through the two second extrusion sleeves 205, and the other lead screw 203 is installed in the same way, the four claws 201 are inserted into the incision of the patient, then the four claws 201 are horizontally moved through the moving assembly 3, the incision is expanded through the four claws 201, and the number of claws 201 is selected according to the length of the incision of the hepatobiliary surgery in the same way, the portable structure is simple to operate, the number of claws can be adjusted according to the length of the incision, and the use effect is good.

[0035] The contents not described in detail in the specification all belong to the prior art known to those skilled in the art, the above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A portable hepatobiliary surgical dilation retractor, comprising a support frame (1) and a dilation assembly (2), wherein the dilation assembly (2) is located inside the support frame (1), characterized in that: The expansion assembly (2) comprises four claws (201), four sliding blocks (202), two lead screws (203), a plurality of first extrusion sleeves (204) and four second extrusion sleeves (205), one side of each of the four sliding blocks (202) is fixedly connected with a claw (201), and each of the four sliding blocks (202) is movably sleeved on a lead screw (203), the plurality of first extrusion sleeves (204) and the four second extrusion sleeves (205) are threadedly connected with the two lead screws (203), one side of each of the plurality of first extrusion sleeves (204) is in contact with a sliding block (202), and the inside of the support frame (1) is provided with a moving assembly (3).

2. The portable dilating retractor for hepatobiliary surgery according to claim 1, characterized in that: Both ends of the lead screw (303) are movably connected with the support frame (1) through bearings, both ends of the slide rod (304) are fixedly connected with the support frame (1), and the lead screw (303) and the slide rod (304) penetrate through the two cross plates (301), the bottoms of the four vertical plates (302) are fixedly connected with the two cross plates (301), and the four vertical plates (302) are movably sleeved on the two lead screws (203).

3. The portable dilating retractor for hepatobiliary surgery according to claim 1, characterized in that: The front side of the support frame (1) movably has a handle (305), and the rear side of the handle (305) is fixedly connected with the lead screw (303).

4. The portable dilating retractor for hepatobiliary surgery according to claim 3, characterized in that: The outer side of the handle (305) movably has a protective sleeve (7), the inside of the protective sleeve (7) is threadedly connected with an external thread sleeve (6), and the external thread sleeve (6) is fixedly installed on the front side of the support frame (1).

5. The portable liver surgery dilating drag hook according to claim 1, characterized in that: One side of each of the four vertical plates (302) is fixedly connected with an indicator plate (306), and both side edge positions of the top of the support frame (1) are fixedly connected with a scale (8).

6. The portable liver surgery dilating drag hook according to claim 1, characterized in that: The front and rear sides of the support frame (1) and near the four corner positions are each provided with a through hole (5).

7. The portable liver surgery dilating drag hook according to claim 1, characterized in that: The front and rear sides of the support frame (1) and near the four corner positions are each provided with a through hole (5). The front and rear sides of the support frame (1) and near the four corner positions are each provided with a through hole (5).

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