Spine minimally invasive channel expansion mechanism convenient to position

Abstract

The utility model relates to the technical field of medical treatment, and discloses a spine minimally invasive channel expansion mechanism convenient to position, which comprises a rectangular plate, a rack is fixedly arranged on the top of the rectangular plate, and the rack is paved on the top of the rectangular plate; and the number of the sliding sleeves is two, and movable shafts are movably installed in the two sliding sleeves. Limiting is carried out through clamping connection between the racks and the clamping connection blocks, the clamping connection blocks are clamped in gaps between the racks through the counter-acting force of the reset springs during memory limiting after movement, it is guaranteed that the water baffle is limited and fixed by medical staff in the operation process, a minimally-invasive small incision is kept, meanwhile, the water baffle is fixed, and the operation efficiency is improved. Soft tissue around the channel can be expanded to reduce muscle injury, the safety of a patient in an operation is never protected, the channel and a good operation cavity gap are flushed through very smooth water flow, the overall structure is simple, operation is convenient and fast, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, and more specifically, to a minimally invasive spinal channel expansion mechanism which is easy to position. Background Art

[0002] In minimally invasive spinal surgery, tissues need to be expanded to form a surgical channel. Traditional instruments used to expand tissues are cylindrical channel tubes of fixed size (which may have different specifications), that is, the size of the expanded surgical channel cannot be adjusted. However, doctors sometimes need to expand the surgical channel to a certain extent during surgery. Currently, the minimally invasive spinal channel expansion mechanism that is easy to position usually uses a single metal baffle for surgery. This surgical method has certain limitations. Since the scale of the incision is not large, this method occupies more space in the minimally invasive channel and has a single function. It is also impossible to achieve surgical endoscope monitoring of the incision and the operating incision while maintaining a minimally invasive small incision. It can expand the soft tissue around the channel to reduce muscle damage, and it is also impossible to achieve a very smooth water flow to flush the channel. Therefore, the present invention is dedicated to a new minimally invasive spinal channel expansion mechanism that is easy to position. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a minimally invasive spinal channel expansion mechanism that is easy to position and has the advantage of good positioning effect in medical spinal surgery.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a minimally invasive spinal channel expansion mechanism that is easy to position, comprising a rectangular plate, a rack is fixedly installed on the top of the rectangular plate, and the rack covers the top of the rectangular plate;

[0005] There are two sliding sleeves, the two sliding sleeves are symmetrically and movably sleeved on the surface of the rectangular plate, and movable shafts are movably installed inside the two sliding sleeves;

[0006] A clamping block, the clamping block is fixedly mounted on the surface of the movable shaft;

[0007] A fixing plate, the fixing plate is fixedly mounted inside the sliding sleeve, and a return spring is arranged between the fixing plate and one end of the clamping block;

[0008] A connecting block is fixedly mounted on the side of the sliding sleeve, a fixing strip is fixedly mounted on the bottom of the connecting block, and a water baffle is fixedly mounted on the side of the fixing strip.

[0009] As a preferred technical solution of the utility model, a rectangular bar is fixedly installed on the top surface of the clamping block, and the rectangular bar cooperates with the top of the clamping block to form an uneven surface.

[0010] As a preferred technical solution of the utility model, an arc-shaped plate is arranged on the side of the rectangular plate, and there are two arc-shaped plates, which are arranged at two ends of the rectangular plate respectively.

[0011] As a preferred technical solution of the utility model, there are three return springs arranged between one end of the clamping block and the fixed plate, and the three return springs are evenly distributed between the clamping block and the fixed plate.

[0012] As a preferred technical solution of the utility model, the entire rectangular plate and the fixing strip are both made of stainless steel, and the entire fixing strip is designed in an arc shape.

[0013] As a preferred technical solution of the utility model, the outer diameter of the water baffle is greater than the outer diameter of the fixing strip, and the water baffle is made of silicone.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model inserts the water baffle into the incision and presses the reset spring to lift the clamping block and then moves the sliding sleeve. After moving to an appropriate distance, the finger is released and the clamping block is reset and clamped in the gap between the racks after the reaction force of the reset spring. Then the water baffle expands the incision. Compared with the traditional device, this device limits the position by the clamping between the rack and the clamping block, and when the limit is remembered after moving, the clamping block is clamped in the gap between the racks by the reaction force of the reset spring, which ensures that the medical staff can limit and fix the water baffle during the operation. While maintaining a minimally invasive small incision, the soft tissue around the channel can be expanded to reduce muscle damage, thus protecting the safety of the patient during the operation, realizing a very smooth water flow flushing channel and a good surgical operation cavity, and the overall structure is relatively simple, the operation is relatively convenient, and the practicability is relatively strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0018] Figure 3 This is a front sectional structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing strip of the utility model;

[0020] Figure 5 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] In the figure: 1, rectangular plate; 2, rack; 3, sliding sleeve; 4, movable shaft; 5, clamping block; 6, fixed plate; 7, return spring; 8, connecting block; 9, fixed strip; 10, water baffle; 11, arc plate; 12, rectangular strip. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 5 As shown, the utility model provides a minimally invasive spinal channel expansion mechanism that is easy to position, comprising a rectangular plate 1, a rack 2 is fixedly mounted on the top of the rectangular plate 1, and the rack 2 covers the entire top of the rectangular plate 1;

[0024] There are two sliding sleeves 3, and the two sliding sleeves 3 are symmetrically and movably sleeved on the surface of the rectangular plate 1. A movable shaft 4 is movably installed inside the two sliding sleeves 3;

[0025] A clamping block 5, which is fixedly mounted on the surface of the movable shaft 4;

[0026] A fixing plate 6, the fixing plate 6 is fixedly mounted inside the sliding sleeve 3, and a return spring 7 is arranged between the fixing plate 6 and one end of the clamping block 5;

[0027] A connecting block 8, the connecting block 8 is fixedly mounted on the side of the sliding sleeve 3, a fixing strip 9 is fixedly mounted on the bottom of the connecting block 8, and a water retaining plate 10 is fixedly mounted on the side of the fixing strip 9;

[0028] When the operation needs to be expanded, the medical staff inserts the two relatively movable water baffles 10 into the incision of the operation, and then presses the clamping block 5 to move the reset spring 7 downward to form a compressed state, and then pulls the sliding sleeve 3 as a whole to move to both sides through the surface of the rectangular plate 1, and releases the fingers after moving to a suitable position. The clamping block 5 is reset by the reaction force of the reset spring 7, so that it is clamped in the gap between the racks 2 and the racks 2 to form a limit, and the water baffle 10 also moves synchronously inside the incision to expand the wound;

[0029] After the scissors 11 are in the state of being moved, the scissors 11 are moved back and forth, and ...

[0030] Among them, a rectangular strip 12 is fixedly installed on the top surface of the clamping block 5, and the rectangular strip 12 cooperates with the top of the clamping block 5 to form an uneven surface;

[0031] A rectangular strip 12 is fixedly mounted on the top surface of the clamping block 5, and the cooperation between the rectangular strip 12 and the top of the clamping block 5 forms an uneven surface. The uneven surface increases the friction between the hand and the clamping block 5 when the medical staff uses the clamping block 5, thereby better moving the sliding sleeve 3.

[0032] The side of the rectangular plate 1 is provided with an arc-shaped plate 11, and there are two arc-shaped plates 11, which are respectively arranged at two ends of the rectangular plate 1;

[0033] An arc plate 11 is arranged on the side of the rectangular plate 1, and there are two arc plates 11 distributed at both ends of the rectangular plate 1. By using the arc plates 11 at both ends of the rectangular plate 1, the sliding sleeve 3 is prevented from being disjointed when moving on the surface of the rack 2, thereby preventing the life of the patient during the operation from being endangered, thereby further improving the safety of the patient during the operation.

[0034] Among them, there are three return springs 7 arranged between one end of the clamping block 5 and the fixing plate 6, and the three return springs 7 are evenly distributed between the clamping block 5 and the fixing plate 6;

[0035] Three reset springs 7 are arranged between one end of the clamping block 5 and the fixed plate 6, and the three reset springs 7 are evenly distributed therebetween. When the medical staff presses the clamping block 5 to move the sliding sleeve 3 as a whole on the surface of the rack 2 and then removes their fingers, the hook at the front end of the clamping block 5 is reset faster, thereby reducing the occurrence of errors and improving accuracy.

[0036] The entire rectangular plate 1 and the fixing bar 9 are made of stainless steel, and the entire fixing bar 9 is designed in an arc shape;

[0037] The entire rectangular plate 1 and the fixing strip 9 are made of stainless steel. Stainless steel has excellent corrosion resistance and can maintain stable performance in various environments. After strict disinfection and sterilization, the stainless steel can ensure a sterile state and reduce the risk of infection, thereby protecting the life and health of patients.

[0038] The outer diameter of the water baffle 10 is greater than the outer diameter of the fixing strip 9, and the water baffle 10 is made of silicone.

[0039] Because the outer diameter of the water baffle 10 is greater than the outer diameter of the fixing strip 9, it can fit closely to the surgical wound during surgery, effectively blocking the entry of moisture and other liquids, thereby preventing the patient's wound from being infected. The water baffle 10 is made of silicone, which has a certain tear resistance and tensile strength to ensure that it will not break or deform during surgery.

[0040] The working principle and use process of this utility model:

[0041] When expansion of the operation is required, the medical staff inserts the two relatively movable water baffles 10 into the incision of the operation, and then presses the clamping block 5 to move the reset spring 7 downward to form a compressed state, and then pulls the sliding sleeve 3 as a whole through the surface of the rectangular plate 1 to move to both sides, and releases the fingers after moving to the appropriate position. The clamping block 5 is reset by the reaction force of the reset spring 7, so that it is clamped in the gap between the rack 2 and the rack 2 to form a limit, and the water baffle 10 also moves synchronously inside the incision to expand the wound.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A minimally invasive spinal channel expansion mechanism that is easy to position, comprising a rectangular plate (1), characterized in that: A rack (2) is fixedly mounted on the top of the rectangular plate (1), and the rack (2) covers the entire top of the rectangular plate (1); Sliding sleeves (3), the number of the sliding sleeves (3) is two, the two sliding sleeves (3) are symmetrically and movably sleeved on the surface of the rectangular plate (1), and movable shafts (4) are movably installed inside the two sliding sleeves (3); A clamping block (5), wherein the clamping block (5) is fixedly mounted on the surface of the movable shaft (4); A fixing plate (6), wherein the fixing plate (6) is fixedly mounted inside the sliding sleeve (3), and a return spring (7) is provided between the fixing plate (6) and one end of the clamping block (5); A connecting block (8) is fixedly mounted on the side of the sliding sleeve (3); a fixing strip (9) is fixedly mounted on the bottom of the connecting block (8); and a water retaining plate (10) is fixedly mounted on the side of the fixing strip (9).

2. The minimally invasive spinal channel expansion mechanism that is easy to position according to claim 1, characterized in that: A rectangular strip (12) is fixedly mounted on the top surface of the clamping block (5), and the rectangular strip (12) cooperates with the top of the clamping block (5) to form an uneven surface.

3. The minimally invasive spinal channel expansion mechanism that is easy to position according to claim 1, characterized in that: An arc-shaped plate (11) is arranged on the side surface of the rectangular plate (1), and there are two arc-shaped plates (11). The two arc-shaped plates (11) are arranged at two ends of the rectangular plate (1) respectively.

4. The minimally invasive spinal channel expansion mechanism that is easy to position according to claim 1, characterized in that: There are three return springs (7) arranged between one end of the clamping block (5) and the fixing plate (6), and the three return springs (7) are evenly distributed between the clamping block (5) and the fixing plate (6).

5. The minimally invasive spinal channel expansion mechanism that is easy to position according to claim 1, characterized in that: The entire rectangular plate (1) and the fixing strip (9) are both made of stainless steel, and the entire fixing strip (9) is designed in an arc shape.

6. The minimally invasive spinal channel expansion mechanism that is easy to position according to claim 1, characterized in that: The outer diameter of the water baffle plate (10) is greater than the outer diameter of the fixing strip (9), and the water baffle plate (10) is made of silica gel.

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