Multi-angle direction-changing suction tube type curette for nasal cavity operation

Abstract

The invention discloses a multi-angle direction-changing suction tube type curette for a nasal cavity operation, relates to the technical field of nasal cavity operation instruments, and provides the following scheme that the curette comprises a stainless steel straight rod, a multi-angle direction-changing structure is arranged at the front end of the stainless steel straight rod, and a scraping end piece is fixed to the front end of the multi-angle direction-changing structure; and the rear section of the scraping end piece penetrates into the stainless steel straight rod. According to the technical scheme, the negative pressure suction pipe located on the rear side of the scraping piece is arranged in the curette, tissue peeled off in the using process of the curette is affected by negative pressure and can be sucked away and discharged in time through the negative pressure suction pipe, meanwhile, the curette is designed in a segmented mode, the multi-angle turning connecting pieces are arranged between the segments, and the curette is convenient to use. The front-section rod piece is electrically controlled to move left and right and up and down in the nasal cavity, so that the curette can be assisted in scraping tissues at the corner position of the nasal cavity in a multi-angle direction changing manner, and the operation range is expanded.

Description

Technical Field

[0001] The invention relates to the technical field of nasal surgery instruments, and in particular to a solution of a multi-angle changeable suction tube type curette for nasal surgery. Background Art

[0002] An ENT curette is a common medical tool used in ENT surgeries. It is usually made of stainless steel and has a smooth surface and a curved shape. The curette is mainly used to remove or scrape tissue from the throat, tonsils, tongue base, and other parts of the oral mucosa. Doctors can choose curettes of different shapes and sizes according to the condition and needs. In a tonsillectomy, the doctor places the curette on the tissue around the tonsils and gently scrapes the tissue to remove the tonsils. Similarly, in a tongue base removal, the doctor will use a curette to scrape away abnormal tissue on the tongue base.

[0003] When the curette is used to examine and treat nasal problems, it is often used to scrape nasal polyps, sinusitis, and nasal pathological tissue. However, in actual use, it is found that due to the complex structure of the nasal cavity, when the curette enters the nasal cavity and encounters an area with a small angle and a corner, it is difficult to probe and contact the tissue. Therefore, in view of the above problems, a person skilled in the art has proposed a multi-angle reversing suction tube curette for nasal surgery that can solve the above problems. Summary of the invention

[0004] In view of the defects in the above-mentioned background technology that the tissue peeled off by the scraper for nasal surgery cannot be discharged in time during use, and the curved and angled areas in the nasal cavity are difficult to scrape, a technical solution of a multi-angle changeable suction straw scraper for nasal surgery is provided.

[0005] It comprises a stainless steel straight rod, the front end of which is provided with a multi-angle direction-changing structure, the front end of which is fixed with a scraping end piece, and the rear section of the scraping end piece penetrates into the interior of the stainless steel straight rod;

[0006] The scraping end piece includes a hollow cylinder, a collar fixedly connected to the front end surface of the hollow cylinder, and a U-shaped scraper fixedly connected to the front end of the collar;

[0007] The multi-angle direction-changing structure includes two sleeves, and the ports at one end of the sleeves close to each other are respectively sleeved with a front fixing block and a rear fixing block, and two convex strips arranged in mirror symmetry are fixed at the left and right positions of the rear surface of the front fixing block and the upper and lower positions of the front surface of the rear fixing block, and a rotor is arranged inside where the convex strips cross and overlap each other, and micro joint motors are installed on the upper end face and the left end face of the rotor, and specifically, the two micro joint motors are controlled by a controller to rotate accurately, so that the rotor is rotated along the Z axis by the micro joint motor at the top, and the front fixing block is driven to swing left and right along the Z axis of the rotor, thereby driving the hollow cylinder and the U-shaped scraper to change the left and right angles, and at the same time, when the micro joint motor on the left drives the rotor to rotate along the X axis, the front fixing block is pulled to swing up and down along the X axis of the rotor, thereby changing the up and down angles of the hollow cylinder and the U-shaped scraper. By combining the changes in the up and down angles and the left and right angles, the effect of changing the angle is achieved.

[0008] In the above-mentioned technical solution of a multi-angle reversing suction straw scraper for nasal surgery, preferably: a negative pressure tube limiting port is fixed on the top surface of the stainless steel straight rod, and the negative pressure tube limiting port has an angle of 45° with the axis of the stainless steel straight rod, and a negative pressure buried chamber is opened inside the stainless steel straight rod and inside the negative pressure tube limiting port, and the front end of the negative pressure buried chamber passes through the front end end of the stainless steel straight rod. Specifically, after the angle between the front end of the stainless steel straight rod and the scraping end piece is changed, the U-shaped scraper is used to scrape the diseased tissue in the nasal cavity, and the negative pressure of the negative pressure extraction pipeline is used to draw the scraped diseased tissue into the mask, and after a negative pressure collection bottle is added between the negative pressure extraction pipeline and the medical negative pressure machine, the extracted diseased tissue will be collected inside the negative pressure collection bottle.

[0009] In the above-mentioned technical solution of a multi-angle change-direction suction straw-type scraper for nasal surgery, preferably: the rear end end of the stainless steel straight rod is fixedly connected to a gripping handle, a strip through hole for lightweight is provided inside the gripping handle, and 7-12 anti-slip grooves are provided at equal distances on the outer surface of the gripping handle.

[0010] In the above-mentioned technical solution of a multi-angle reversible suction straw scraper for nasal surgery, preferably: the rear section of the negative pressure extraction pipe is buried and fixed inside the negative pressure burying chamber, and the rear end of the negative pressure extraction pipe passes through the negative pressure pipe limiting port and is connected to the medical negative pressure machine, and the front end of the negative pressure extraction pipe is transmitted from the front end of the stainless steel straight rod and is located inside the ring.

[0011] In the above-mentioned technical solution of a multi-angle change-direction suction straw scraper for nasal surgery, preferably: the outer ring surface of the hollow cylinder is fixedly connected to the inner cavity side wall of the sleeve on the front side, and a cylindrical cavity for a negative pressure extraction pipe to pass through is provided in the central position of the interior of the hollow cylinder, and a wide mask is fixed to one end of the negative pressure extraction pipe located in the inner cavity of the sleeve.

[0012] In the above-mentioned technical solution of a multi-angle change-direction suction straw scraper for nasal surgery, preferably: 3-7 connecting rods are fixed in a circular array on the inner cavity side wall of the ring, a circular ring is fixed at one end where the connecting rods are gathered together, a circle of silicone ring is fixed on the inner surface of the circular ring by adhesive, and the outer ring surface of the front section of the negative pressure extraction pipe is in close contact with the inner surface of the silicone ring.

[0013] In the above-mentioned technical solution of a multi-angle changeable suction tube type scraper for nasal surgery, preferably: the wide mask is a hollow frustum, and the front port diameter of the wide mask is larger than the rear port diameter, and the front end face of the wide mask is flush with the front end face of the ring.

[0014] In the above-mentioned technical solution of a multi-angle change-direction suction straw scraper for nasal surgery, preferably: the two convex strips on the rear side of the front fixing block are arranged in left-right mirror symmetry, and the two convex strips on the front side of the rear fixing block are arranged in upper-lower mirror symmetry; wherein, the inside of each of the convex strips is provided with an axle pin hole.

[0015] In the above-mentioned technical solution of a multi-angle changeable suction straw scraper for nasal surgery, preferably: an axle pin is fixed to the upper and lower surfaces and left and right surfaces of the rotor, and the end of the axle pin away from the rotor is inserted into the axle pin hole inside the convex strip, and the output shaft of the micro-joint motor at the top is connected to the top end of the axle pin at the top, and the output shaft of the micro-joint motor on the left is connected to the end of the axle pin on the left.

[0016] In the above-mentioned technical solution of a multi-angle change-direction suction straw scraper for nasal surgery, preferably: the inner cavity side wall of the rear sleeve is fixedly connected to the outer ring surface of the front section of the stainless steel straight rod, and the sleeve, the front fixing block, the rear fixing block and the rotor are all provided with a coaxially arranged circular hole for the negative pressure extraction pipe to pass through the circular hole.

[0017] It can be seen from the above technical solution that the present invention provides a multi-angle changeable suction tube type curette for nasal surgery. Compared with the prior art, the present invention has the following beneficial effects:

[0018] The technical solution of the present invention is to arrange a negative pressure suction tube at the rear side of the scraper inside the scraper, so that the tissue peeled off during the use of the scraper is affected by the negative pressure and can be promptly sucked away and discharged by the negative pressure suction tube. At the same time, the scraper is designed in sections, and multi-angle change-of-direction connecting parts are arranged between each section to realize the left and right, up and down movement of the electrically controlled front section rod in the nasal cavity, so that multi-angle change-of-direction can be achieved to assist the scraper in scraping tissue at the corner of the nasal cavity, thereby expanding the scope of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces and describes the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the straw-type scraper;

[0021] Figure 2 It is a schematic diagram of a partially exploded straw-type curette;

[0022] Figure 3 It is a schematic diagram of the handle of the curette after being cut;

[0023] Figure 4 A schematic diagram of a scraping end piece;

[0024] Figure 5 Schematic diagram of the multi-angle change-of-direction structure.

[0025] Attached Figure 1 -Attached Figure 5 The corresponding relationship of the parts is as follows:

[0026] 1. Stainless steel straight rod; 2. Multi-angle change-of-direction structure; 21. Front fixing block; 22. Rear fixing block; 23. Raised strip; 24. Rotor; 25. Micro joint motor; 26. Casing; 3. Scraping end piece; 31. Hollow cylinder; 32. Ring; 33. U-shaped scraper; 4. Negative pressure extraction pipeline; 5. Holding handle; 6. Negative pressure tube limit port; 7. Negative pressure buried chamber; 8. Wide mask. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to more clearly explain and illustrate the technical solution and implementation of the present invention, several preferred specific embodiments for implementing the technical solution of the present invention are introduced below.

[0029] Embodiment, a preferred technical solution of a multi-angle changeable suction tube type curette for nasal surgery:

[0030] Refer to the instruction manual Figure 1 As shown: it comprises a stainless steel straight rod 1, a multi-angle direction-changing structure 2 is arranged at the front end of the stainless steel straight rod 1, a scraping end piece 3 is fixed at the front end of the multi-angle direction-changing structure 2, and the rear section of the scraping end piece 3 penetrates into the interior of the stainless steel straight rod 1;

[0031] Refer to the instruction manual Figure 4 As shown: the scraping end piece 3 includes a hollow cylinder 31, a collar 32 fixedly connected to the front end surface of the hollow cylinder 31, and a U-shaped scraper 33 fixedly connected to the front end of the collar 32;

[0032] Refer to the instruction manual Figure 5 As shown: the multi-angle change-of-direction structure 2 includes two sleeves 26, and the front fixing block 21 and the rear fixing block 22 are respectively sleeved inside the end ports of the sleeves 26 that are close to each other. Two mirror-symmetrically arranged convex strips 23 are fixed on the left and right positions of the rear surface of the front fixing block 21, and on the upper and lower positions of the front surface of the rear fixing block 22, and a rotor 24 is arranged inside the convex strips 23 that cross and overlap each other, and a micro joint motor 25 is installed on the upper end face and the left end face of the rotor 24.

[0033] Refer to the instruction manual Figure 3 As shown: a negative pressure tube limiting port 6 is fixed on the top surface of the stainless steel straight rod 1, and an angle of 45° is formed between the negative pressure tube limiting port 6 and the axis of the stainless steel straight rod 1, and a negative pressure buried chamber 7 is provided inside the stainless steel straight rod 1 and the negative pressure tube limiting port 6, and the front end of the negative pressure buried chamber 7 passes through the front end of the stainless steel straight rod 1; a gripping handle 5 is fixedly connected to the rear end of the stainless steel straight rod 1, and a strip through hole for lightweight is provided inside the gripping handle 5, and 7-12 anti-slip grooves are provided on the outer surface of the gripping handle 5 at equal distances.

[0034] Refer to the instruction manual Figure 4As shown: the rear section of the negative pressure extraction pipe 4 is buried and fixed inside the negative pressure buried chamber 7, and the rear end of the negative pressure extraction pipe 4 passes through the negative pressure pipe limit port 6 and is connected to the medical negative pressure machine, and the front end of the negative pressure extraction pipe 4 passes through the front end of the stainless steel straight rod 1 and is located inside the collar 32. The outer ring surface of the hollow cylinder 31 is fixedly connected to the inner cavity side wall of the front sleeve 26, and a cylindrical cavity for the negative pressure extraction pipe 4 to pass through is set at the central position of the inner cavity of the hollow cylinder 31, and a wide mask 8 is fixed to one end of the negative pressure extraction pipe 4 located in the inner cavity of the collar 32.

[0035] Refer to the instruction manual Figure 4 As shown: 3-7 connecting rods are fixed in a circular array on the inner cavity side wall of the ring 32, and a circular ring is fixed at one end of the connecting rods that are gathered together. A circle of silicone ring is fixed on the inner surface of the circular ring by adhesive, and the outer ring surface of the front section of the negative pressure extraction pipe 4 is in close contact with the inner surface of the silicone ring; the wide mask 8 is a hollow truncated cone, and the front port diameter of the wide mask 8 is larger than the rear port diameter, and the front end face of the wide mask 8 is flush with the front end face of the ring 32.

[0036] Refer to the instruction manual Figure 5 As shown: the two convex strips 23 on the rear side of the front fixing block 21 are arranged in left-right mirror symmetry, and the two convex strips 23 on the front side of the rear fixing block 22 are arranged in upper and lower mirror symmetry; wherein, the interior of the convex strips 23 is provided with an axle pin hole, the upper and lower surfaces and the left and right surfaces of the rotor 24 are fixed with an axle pin, and the end of the axle pin away from the rotor 24 is inserted into the axle pin hole inside the convex strip 23, and the output shaft of the top micro joint motor 25 is connected to the top end of the axle pin at the top, and the output shaft of the left micro joint motor 25 is connected to the end of the axle pin on the left, the inner cavity side wall of the rear sleeve 26 is fixedly connected to the outer ring surface of the front section of the stainless steel straight rod 1, and the sleeve 26, the front fixing block 21, the rear fixing block 22 and the rotor 24 are all provided with a coaxially arranged circular hole for the negative pressure extraction pipe 4 to pass through the circular hole.

[0037] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0038] After holding the gripping handle 5, the multi-angle change structure 2 is inserted into the nasal cavity, and the two micro joint motors 25 are controlled by the controller to rotate accurately, so that the rotor 24 is rotated along the Z axis by the micro joint motor 25 on the top, and the front fixing block 21 is driven to swing left and right along the Z axis of the rotor 24, thereby driving the hollow cylinder 31 and the U-shaped scraper 33 to change the left and right angles. At the same time, when the micro joint motor 25 on the left drives the rotor 24 to rotate along the X axis, the front fixing block 21 is pulled to swing up and down along the X axis of the rotor 24, thereby changing the up and down angles of the hollow cylinder 31 and the U-shaped scraper 33. By combining the up and down angle changes and the left and right angle changes, the effect of angle change is achieved.

[0039] After the angles of the front end of the stainless steel straight rod 1 and the scraping end piece 3 are changed, the U-shaped scraper 33 is used to scrape the diseased tissue in the nasal cavity, and the negative pressure of the negative pressure extraction pipe 4 is used to draw the scraped diseased tissue into the mask 8. After a negative pressure collection bottle is added between the negative pressure extraction pipe 4 and the medical negative pressure machine, the extracted diseased tissue will be collected inside the negative pressure collection bottle.

[0040] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. Finally, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions that can be implemented in this application, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that can be produced by this application and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

Claims

1. A multi-angle changeable suction tube curette for nasal surgery, comprising a stainless steel straight rod (1), characterized in that: The front end of the stainless steel straight rod (1) is provided with a multi-angle direction-changing structure (2), the front end of the multi-angle direction-changing structure (2) is fixed with a scraping end piece (3), and the rear section of the scraping end piece (3) penetrates into the interior of the stainless steel straight rod (1); The scraping end piece (3) comprises a hollow cylinder (31), a collar (32) fixedly connected to the front end surface of the hollow cylinder (31), and a U-shaped scraper (33) fixedly connected to the front end of the collar (32); The multi-angle direction-changing structure (2) comprises two sleeves (26), wherein a front fixing block (21) and a rear fixing block (22) are respectively sleeved inside the ports of the sleeves (26) close to each other, and two convex strips (23) arranged in mirror symmetry are fixed at the left and right positions of the rear surface of the front fixing block (21) and at the upper and lower positions of the front surface of the rear fixing block (22), and a rotor (24) is arranged inside the convex strips (23) which cross and overlap each other, and a micro joint motor (25) is installed on the upper end surface and the left end surface of the rotor (24).

2. A multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: A negative pressure tube limiting port (6) is fixed on the top surface of the stainless steel straight rod (1), and an angle of 45° is formed between the negative pressure tube limiting port (6) and the axis of the stainless steel straight rod (1), and a negative pressure buried chamber (7) is provided inside the stainless steel straight rod (1) and inside the negative pressure tube limiting port (6), and the front end of the negative pressure buried chamber (7) passes through the front end of the stainless steel straight rod (1).

3. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: The rear end of the stainless steel straight rod (1) is fixedly connected to a gripping handle (5), the interior of the gripping handle (5) is provided with a strip-shaped through hole for lightening, and the outer surface of the gripping handle (5) is provided with 7-12 anti-slip grooves at equal distances.

4. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: The rear section of the negative pressure extraction pipeline (4) is buried and fixed inside the negative pressure buried chamber (7), and the rear end of the negative pressure extraction pipeline (4) passes through the negative pressure tube limiting port (6) and is connected to the medical negative pressure machine, and the front end of the negative pressure extraction pipeline (4) passes through the front end of the stainless steel straight rod (1) and is located inside the ring (32).

5. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: The outer ring surface of the hollow cylinder (31) is fixedly connected to the inner cavity side wall of the sleeve (26) on the front side, and a cylindrical cavity for the negative pressure extraction pipe (4) to pass through is provided at the inner central position of the hollow cylinder (31), and a wide mask (8) is fixed to one end of the negative pressure extraction pipe (4) located in the inner cavity of the sleeve (32).

6. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: 3-7 connecting rods are fixed in a circular array on the inner cavity side wall of the collar (32), a circular ring is fixed at one end of the connecting rods that are gathered together, a circle of silicone ring is fixed on the inner surface of the circular ring by adhesive, and the outer ring surface of the front section of the negative pressure extraction pipe (4) is in close contact with the inner surface of the silicone ring.

7. The multi-angle changeable suction tube curette for nasal surgery according to claim 5, characterized in that: The wide housing (8) is in the shape of a hollow truncated cone, and the diameter of the front port of the wide housing (8) is larger than the diameter of the rear port, and the front end surface of the wide housing (8) is flush with the front end surface of the collar (32).

8. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: The two convex strips (23) on the rear side of the front fixing block (21) are arranged in left-right mirror symmetry, and the two convex strips (23) on the front side of the rear fixing block (22) are arranged in top-bottom mirror symmetry; wherein the convex strips (23) are all provided with shaft pin holes inside.

9. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: An axle pin is fixed to the upper and lower surfaces and the left and right surfaces of the rotor (24), and the end of the axle pin away from the rotor (24) is inserted into the axle pin hole inside the convex strip (23), and the output shaft of the micro joint motor (25) at the top is connected to the top end of the axle pin at the top, and the output shaft of the micro joint motor (25) on the left is connected to the end of the axle pin on the left.

10. The multi-angle changeable suction tube curette for nasal surgery according to claim 1, characterized in that: The inner cavity side wall of the rear sleeve (26) is fixedly connected to the front outer ring surface of the stainless steel straight rod (1), and the sleeve (26), the front fixing block (21), the rear fixing block (22) and the rotor (24) are all provided with a coaxially arranged circular hole for the negative pressure extraction pipe (4) to pass through the circular hole.

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