Lesion tissue removal device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a diseased tissue removal device which comprises a handle, an extension rod and a digging spoon which are sequentially connected. The handle is of a bent structure, the end, away from the extension rod, of the handle is bent towards the first side of the extension rod, and the bending angle of the handle is a first obtuse angle. The digging spoon is of a bent structure, the end, away from the extension rod, of the digging spoon is bent towards the second side of the extension rod, the first side and the second side are the two opposite sides in the direction perpendicular to the extension rod, and the bending angle of the digging spoon is a second obtuse angle; wherein the angle of the first obtuse angle is smaller than that of the second obtuse angle. The diseased tissue removing device provided by the utility model is beneficial to reducing the fatigue feeling of hands in an operation and improving the accuracy and efficiency of the operation.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a diseased tissue removal device. Background Art

[0002] The hip joint, as the largest ball-and-socket joint in the human body, has a complex structure that gives the leg a rich range of motion. Its multi-axial nature supports the movement of the leg in all planes, but this high degree of flexibility also makes it susceptible to injury, one of the common sources of pain is lesions in the acetabulum.

[0003] For these types of problems, doctors usually use surgery to remove damaged or diseased tissue to relieve pain and restore joint function.

[0004] The current surgical tools for hip joint diseases do not conform to the principles of ergonomics. When used for a long time, they can easily cause hand fatigue, which in turn affects the stability of the operation and the accuracy of the surgery. Utility Model Content

[0005] In view of this, the present application provides a diseased tissue removal device, which helps to reduce hand fatigue during surgery and improves the accuracy and efficiency of the surgery.

[0006] Specifically, the following technical solutions are included:

[0007] The present application provides a diseased tissue removal device, which comprises a handle, an extension rod and a scoop connected in sequence;

[0008] The handle is a bent structure, and one end of the handle away from the extension rod is bent toward the first side of the extension rod, and the bending angle of the handle is a first obtuse angle;

[0009] The scooping spoon is a bent structure, and one end of the scooping spoon away from the extension rod is bent toward the second side of the extension rod, the first side and the second side are two sides opposite to each other in a direction perpendicular to the extension rod, and the bending angle of the scooping spoon is a second obtuse angle;

[0010] Wherein, the angle of the first obtuse angle is smaller than the angle of the second obtuse angle.

[0011] In an implementation of the embodiment of the present application, the angle of the first obtuse angle is between 100° and 110°; and / or,

[0012] The angle of the second obtuse angle is between 130° and 140°.

[0013] In an implementation of the embodiment of the present application, the angle of the first obtuse angle is 110°; and / or,

[0014] The second obtuse angle is 135°.

[0015] In one implementation of the embodiment of the present application, the handle includes a first connecting portion and a holding portion, the two ends of the first connecting portion are respectively connected to the holding portion and the extension rod, and the extension direction of the first connecting portion is parallel to the extension direction of the extension rod, the holding portion is connected to the first connecting portion intersectingly, and the angle between the holding portion and the first connecting portion is the first obtuse angle.

[0016] In one implementation of the embodiment of the present application, at least one weight-reducing hole is provided on the grip portion;

[0017] At least one of the weight-reducing holes is a teardrop-shaped through hole, and a tip of the through hole is close to the first connecting portion. The through hole penetrates the gripping portion in a direction perpendicular to an extending direction of the extension rod.

[0018] In one implementation of the embodiment of the present application, the scooping spoon includes a second connecting portion and a scooping portion;

[0019] The second connecting portion includes an arc segment, and the extension rod and the digging portion are tangentially connected to two ends of the arc segment respectively, so that the angle between the extension direction of the extension rod and the extension direction of the digging portion is the second obtuse angle;

[0020] A digging groove is formed on a surface of the digging portion facing the second side.

[0021] In one implementation of the embodiment of the present application, the excavation groove includes a first groove segment, a second groove segment and a third groove segment connected in sequence, wherein the orthographic projections of the first groove segment and the second groove segment on the projection plane are semicircular, the orthographic projection of the second groove segment on the projection plane is rectangular, and the projection plane is parallel to the surface of the excavation portion facing the second side.

[0022] In one implementation of the embodiment of the present application, there is an inclined surface between the edge of the digging groove and the outer wall of the digging portion, and the inclined surface is inclined so that the closer it is to the digging groove, the closer it is to the bottom of the digging groove.

[0023] In an implementation of the embodiment of the present application, a cutting surface is provided on an outer wall of the digging portion facing the first side, and the cutting surface is parallel to a surface of the digging portion facing the second side.

[0024] In one implementation of the embodiment of the present application, a first mounting hole is formed on the first connecting portion, and a second mounting hole is formed on the extension rod;

[0025] The diseased tissue removal device further includes a connecting member, at least a portion of which passes through the first mounting hole and the second mounting hole, so that the handle is detachably connected to the extension rod.

[0026] The beneficial effects of the technical solution provided by the embodiments of the present application include at least:

[0027] The diseased tissue removal device provided in the embodiment of the present application has a handle and a digging spoon disposed at both ends of the extension rod and bent toward different sides of the extension rod, respectively. Since the extension rod and the handle form a first obtuse angle, and the digging spoon and the extension rod form a second obtuse angle, the doctor does not need to bend his wrist when performing surgery. After holding the handle normally, the extension rod has already pointed to the surgical opening of the acetabulum, and then the entire diseased tissue removal device is moved forward, and the digging spoon can enter the inside of the acetabulum. At this time, since the digging spoon and the extension rod form a second obtuse angle, the digging spoon faces the diseased position of the acetabulum. At this time, the handle is slightly moved backward by one end, so that the digging spoon fits the diseased tissue, and the diseased tissue inside the acetabulum can be accurately removed by moving the handle up and down. The diseased tissue removal device provided in the embodiment of the present application is more in line with the principle of ergonomics. The handle and the digging spoon are bent at a certain angle relative to the extension rod, so that the doctor does not need to bend his wrist and adjust the angle in most cases, and can accurately send the digging spoon to the inside of the acetabulum, thereby relieving hand fatigue during long-term surgery to ensure the stability and accuracy of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the structure of a diseased tissue removal device provided in an embodiment of the present application is shown;

[0030] Figure 2 A first structural schematic diagram of a scooping spoon provided in an embodiment of the present application is shown;

[0031] Figure 3 A second structural schematic diagram of the scooping spoon provided in an embodiment of the present application is shown;

[0032] Figure 4 A third structural schematic diagram of the scooping spoon provided in an embodiment of the present application is shown;

[0033] Figure 5 A partial exploded view of a diseased tissue removal device provided in an embodiment of the present application is shown;

[0034] Figure 6 A schematic structural diagram of a connector provided in an embodiment of the present application is shown.

[0035] Description of reference numerals:

[0036] 1. handle; 11. first obtuse angle; 12. first connecting portion; 121. first mounting hole; 13. gripping portion; 131. weight-reducing hole;

[0037] 2. extension rod; 21. first side; 22. second side; 23. second mounting hole;

[0038] 3. Scooping spoon; 31. Second obtuse angle; 32. Second connecting portion; 33. Scooping portion; 331. Scooping groove; 3311. First groove section; 3312. Second groove section; 3313. Third groove section; 333. Inclined surface; 334. Cutting surface;

[0039] 4. Connectors.

[0040] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In order to make the technical solutions and advantages of the present application clearer, the diseased tissue removal device, etc. will be described in detail in combination with the drawings.

[0042] The hip joint, as the largest ball-and-socket joint in the human body, has a complex structure that gives the leg a rich range of motion. Its multi-axial nature supports the movement of the leg in all planes, but this high flexibility also makes it vulnerable to injury. One common source of pain is lesions in the acetabulum. For such problems, doctors usually use surgery to remove damaged or diseased tissue to relieve pain and restore joint function.

[0043] Among them, when the patient lies flat on the operating table, the concave side of the acetabulum is facing the operating table. The existing surgical tools, after being inserted from the surgical entrance, cannot directly scrape the diseased tissue inside the acetabulum. The doctor needs to manually adjust the angle of the surgical tools to perform the operation. The operation process is generally relatively long, which is a great test for the doctor's physical strength and energy.

[0044] Therefore, current surgical tools do not conform to the principles of ergonomics and can easily cause hand fatigue when used for a long time, thereby affecting the stability of the operation and the accuracy of the surgery.

[0045] In this regard, the present application provides a diseased tissue removal device, such as Figure 1 As shown, the diseased tissue removal device includes a handle 1, an extension rod 2 and a scoop 3 connected in sequence; the handle 1 is a bending structure, and the end of the handle 1 away from the extension rod 2 is bent toward the first side 21 of the extension rod 2, and the bending angle of the handle 1 is a first obtuse angle 11; the scoop 3 is a bending structure, and the end of the scoop 3 away from the extension rod 2 is bent toward the second side 22 of the extension rod 2, the first side 21 and the second side 22 are two sides opposite to each other in a direction perpendicular to the extension rod 2, and the bending angle of the scoop 3 is a second obtuse angle 31; wherein, the angle of the first obtuse angle 11 is smaller than the angle of the second obtuse angle 31.

[0046] In the diseased tissue removal device provided in the embodiment of the present application, the handle 1 and the scoop 3 are arranged at both ends of the extension rod 2 and are bent toward different sides of the extension rod 2 respectively. Since the extension rod 2 and the handle 1 form a first obtuse angle 11 ( Figure 1 When the doctor performs the operation, he does not need to bend his wrist. After holding the handle 1 normally, the extension rod 2 is already pointing to the surgical opening of the acetabulum. Then the entire diseased tissue removal device is moved forward, and the digging spoon 3 enters the interior of the acetabulum. At this time, the digging spoon 3 and the extension rod 2 form a second obtuse angle 31 ( Figure 1 The scoop 3 faces the lesion position of the acetabulum, and at this time, the handle 1 is slightly moved backward by one end so that the scoop 3 fits the lesion tissue, and the lesion tissue inside the acetabulum can be accurately excavated by moving the handle 1 up and down. The lesion tissue removal device provided in the embodiment of the present application is more ergonomic, and the handle 1 and the scoop 3 are bent at a certain angle relative to the extension rod 2, so that the doctor can accurately send the scoop 3 to the inside of the acetabulum without bending the wrist and adjusting the angle in most cases, thereby relieving hand fatigue during long-term surgery to ensure the stability and accuracy of the surgery.

[0047] In one implementation of the embodiment of the present application, the angle of the first obtuse angle 11 is between 100° and 110°; and / or the angle of the second obtuse angle 31 is between 130° and 140°.

[0048] Exemplarily, the angle of the first obtuse angle 11 is 110°; and / or the angle of the second obtuse angle 31 is 135°.

[0049] It should be noted that the specific angles of the first obtuse angle 11 and the second obtuse angle 31 are the angles most suitable for the diseased tissue removal surgery obtained through multiple tests based on the angle between the doctor's hand and the surgical incision of the patient's hip joint during the operation, as well as the shape of the acetabulum. The diseased tissue removal device provided in the embodiment of the present application can naturally adapt to the doctor's gestures and the anatomical structure of the acetabulum, and is more in line with the principles of ergonomics.

[0050] It should also be noted that the length of the extension rod 2 can be adaptively adjusted according to the surgical incision of the hip joint and the distance between the surgical incision and the acetabulum.

[0051] In one implementation of the embodiment of the present application, Figure 1 As shown, the handle 1 includes a first connecting portion 12 and a gripping portion 13, the two ends of the first connecting portion 12 are respectively connected to the gripping portion 13 and the extension rod 2, and the extension direction of the first connecting portion 12 is parallel to the extension direction of the extension rod 2, the gripping portion 13 is connected to the first connecting portion 12 intersectingly, and the angle between the gripping portion 13 and the first connecting portion 12 is a first obtuse angle 11.

[0052] In the diseased tissue removal device provided in the embodiment of the present application, the gripping portion 13 of the handle 1 itself does not have a bent portion. For a doctor, the straight handle 1 may be easier to hold, thereby avoiding discomfort for the doctor when holding the handle 1, and will be more comfortable when used for a long time. In addition, by connecting the first connecting portion 12 and the gripping portion 13 in an intersecting manner, a first obtuse angle 11 can be achieved between the gripping portion 13 and the extension rod 2.

[0053] Since the surgical process is generally long, the doctor will consume a lot of physical energy, and the fatigue of the hands will increase over time, which will affect the accuracy and efficiency of the operation.

[0054] Therefore, in one implementation of the embodiment of the present application, at least one weight-reducing hole 131 may be provided on the gripping portion 13 .

[0055] Since the weight of the diseased tissue removal device is basically concentrated on the handle 1, the weight of the gripping portion 13 can be reduced by opening a weight-reducing hole 131 on the gripping portion 13, thereby reducing the overall weight of the entire diseased tissue removal device, so that the doctor can use less force during the operation to operate the diseased tissue removal device to remove the diseased tissue inside the acetabulum, which saves effort and helps reduce the fatigue of the doctor's hands during the operation, thereby improving the accuracy and efficiency of the operation.

[0056] Optionally, those skilled in the art may select and adjust the number of the weight-reducing holes 131 according to actual conditions.

[0057] Furthermore, considering the grip and controllability of the handle 1, at least one of the weight-reducing holes 131 can be a teardrop-shaped through hole, and the tip of the through hole is close to the first connecting portion 12, and the through hole penetrates the grip portion 13 in a direction perpendicular to the extension direction of the extension rod 2.

[0058] The through hole not only reduces weight but also allows the doctor's fingers to pass through, reducing the distance between the four fingers and the palm after gripping, making it closer to a natural fist state. After long-term use, the probability of soreness and fatigue in the palm muscles will be greatly reduced, providing a better grip and improving the controllability of the handle 1.

[0059] In one implementation of the embodiment of the present application, the scooping spoon 3 includes a second connecting portion 32 and a scooping portion 33; the second connecting portion 32 includes an arc segment, and the extension rod 2 and the scooping portion 33 are respectively connected tangentially to the two ends of the arc segment, so that the angle between the extension direction of the extension rod 2 and the extension direction of the scooping portion 33 is a second obtuse angle 31; a scooping groove 331 is provided on the surface of the scooping portion 33 facing the second side 22.

[0060] In the diseased tissue removal device provided in the embodiment of the present application, the digging portion 33 of the digging spoon 3 itself does not have a bent portion. Since a digging groove 331 needs to be provided on the surface of the digging portion 33, if it is manufactured as a bent structure with a certain bending angle, it will greatly increase the manufacturing difficulty. Therefore, the diseased tissue removal device provided in the embodiment of the present application divides the digging portion 33 into two parts. The digging spoon 3 connects the arc segment in the second connecting portion 32 with the extension rod 2 to achieve a second obtuse angle 31 between the digging portion 33 and the extension rod 2, thereby ensuring that the digging portion 33 and the extension rod 2 form a certain angle, while reducing the manufacturing difficulty.

[0061] It should be noted that during the operation, the diseased tissue inside the acetabulum will be collected into the digging groove 331 of the digging portion 33. When the diseased tissue in the digging groove 331 is full, the doctor will remove the diseased tissue removal device from the hip joint and empty the tissue in the digging groove 331. After appropriate cleaning and preparation, the doctor will repeat the previous steps until all the diseased tissue is completely removed.

[0062] In one implementation of the embodiment of the present application, Figure 2 As shown, the digging groove 331 may include a first groove segment 3311, a second groove segment 3312 and a third groove segment 3313 connected in sequence, wherein the orthographic projections of the first groove segment 3311 and the second groove segment 3312 on the projection plane are semicircular, and the orthographic projection of the second groove segment 3312 on the projection plane is rectangular, and the projection plane is parallel to the surface of the digging portion 33 facing the second side 22.

[0063] In current surgical tools, the cross-sectional shape of the groove inside the scoop is generally circular or elliptical. When the diseased tissue is being scraped out, the diseased tissue will first accumulate on the inner wall of the groove near the front end of the scoop. As the amount of diseased tissue scraped off increases, part of the diseased tissue will extend along the inner wall of the groove to accumulate on both sides. Since the cross-sectional shape of the groove is circular or elliptical, the closer to the middle position, the greater the distance between the two side edges, and part of the diseased tissue may fall out of the groove.

[0064] Therefore, when the digging portion 33 in the embodiment of the present application digs out the diseased tissue, the first groove section 3311 scrapes the diseased material and accumulates it in the second groove section 3312. The width of the second groove section 3312 remains unchanged. As the diseased tissue increases, the second groove section 3312 and the third groove section 3313 are slowly filled up, and the diseased tissue is finally removed, thereby reducing the risk of diseased tissue falling during the operation.

[0065] In one implementation of the embodiment of the present application, Figure 3 As shown, there is an inclined surface 333 between the edge of the digging groove 331 and the outer wall of the digging portion 33 , and the inclined surface 333 is inclined so as to be closer to the bottom of the digging groove 331 as it is closer to the digging groove 331 .

[0066] Some of the diseased tissues protrude from the inner surface of the acetabulum, and some cover the inner surface of the acetabulum, making them extremely difficult to remove. In the diseased tissue removal device provided in the embodiment of the present application, a slope 333 is provided between the digging groove 331 and the outer wall of the digging portion 33, and a sharper scraping structure is formed at the slope 333, so that some diseased tissues that are difficult to remove can be scraped off more easily after touching the slope 333, thereby improving the efficiency of the operation.

[0067] In one implementation of the embodiment of the present application, Figure 4 As shown, the outer wall of the digging portion 33 facing the first side 21 has a cutting surface 334 , and the cutting surface 334 is parallel to the surface of the digging portion 33 facing the second side 22 .

[0068] In order to protect the healthy tissue around the diseased tissue, a smooth cutting surface 334 is cut on the digging part 33, so that when the digging part 33 digs out the diseased tissue, that is, moves in various directions, the cutting surface 334 will pass through the healthy tissue opposite to the diseased tissue and come into contact with the healthy tissue. Since the cutting surface 334 is relatively flat, it will not cause any damage to the healthy tissue, thereby protecting the surrounding healthy tissue during a long operation.

[0069] In one implementation of the embodiment of the present application, Figure 5 and Figure 6As shown, a first mounting hole 121 may be opened on the first connecting portion 12, and a second mounting hole 23 may be opened on the extension rod 2; the diseased tissue removal device may also include a connecting member 4, at least a portion of the connecting member 4 passes through the first mounting hole 121 and the second mounting hole 23, so that the handle 1 and the extension rod 2 can be detachably connected.

[0070] In the diseased tissue removal device provided in the embodiment of the present application, the handle 1 is detachably connected to the extension rod 2 through the connecting piece 4. When the extension rod 2 of a different length needs to be replaced, the extension rod 2 is deformed, or the handle 1 is damaged, the connecting piece 4 can be removed and the extension rod 2 or the handle 1 can be replaced, which is convenient for loading and unloading and easy to operate.

[0071] Optionally, the connecting member 4 is a pin.

[0072] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0073] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0074] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A diseased tissue removal device, characterized in that: The diseased tissue removal device comprises a handle (1), an extension rod (2) and a scooping spoon (3) which are connected in sequence; The handle (1) is a bent structure, and one end of the handle (1) away from the extension rod (2) is bent toward the first side (21) of the extension rod (2), and the bending angle of the handle (1) is a first obtuse angle (11); The scooping spoon (3) is a bent structure, and one end of the scooping spoon (3) away from the extension rod (2) is bent toward the second side (22) of the extension rod (2), the first side (21) and the second side are two sides opposite to each other in a direction perpendicular to the extension rod, and the bending angle of the scooping spoon (3) is a second obtuse angle (31); Wherein, the angle of the first obtuse angle (11) is smaller than the angle of the second obtuse angle (31).

2. The diseased tissue removal device according to claim 1, characterized in that: The first obtuse angle (11) is between 100° and 110°; and / or, The angle of the second obtuse angle (31) is between 130° and 140°.

3. The diseased tissue removal device according to claim 2, characterized in that: The first obtuse angle (11) is 110°; and / or, The second obtuse angle (31) is 135°.

4. The diseased tissue removal device according to claim 1, characterized in that: The handle (1) comprises a first connecting portion (12) and a gripping portion (13); two ends of the first connecting portion (12) are respectively connected to the gripping portion (13) and the extension rod (2); an extension direction of the first connecting portion (12) is parallel to an extension direction of the extension rod (2); the gripping portion (13) is connected to the first connecting portion (12) in an intersecting manner; and an angle between the gripping portion (13) and the first connecting portion (12) is the first obtuse angle.

5. The diseased tissue removal device according to claim 4, characterized in that: The gripping portion (13) is provided with at least one weight-reducing hole (131); At least one of the weight-reducing holes (131) is a teardrop-shaped through hole, and the tip of the through hole is close to the first connecting portion (12), and the through hole penetrates the holding portion (13) in a direction perpendicular to the extension direction of the extension rod (2).

6. The diseased tissue removal device according to claim 1, characterized in that: The scooping spoon (3) comprises a second connecting portion (32) and a scooping portion (33); The second connecting portion (32) comprises an arc segment, and the extension rod (2) and the digging portion (33) are tangentially connected to two ends of the arc segment respectively, so that the angle between the extension direction of the extension rod (2) and the extension direction of the digging portion (33) is the second obtuse angle; A digging groove (331) is formed on the surface of the digging portion (33) facing the second side (22).

7. The diseased tissue removal device according to claim 6, characterized in that: The excavation groove (331) comprises a first groove section (3311), a second groove section (3312) and a third groove section (3313) which are connected in sequence, wherein the orthographic projections of the first groove section (3311) and the second groove section (3312) on the projection plane are semicircular, and the orthographic projection of the second groove section (3312) on the projection plane is rectangular, and the projection plane is parallel to the surface of the excavation portion (33) facing the second side (22).

8. The diseased tissue removal device according to claim 6, characterized in that: An inclined surface (333) is provided between the edge of the digging groove (331) and the outer wall of the digging portion (33), and the inclined surface (333) is inclined so that the closer it is to the digging groove (331), the closer it is to the bottom of the digging groove (331).

9. The diseased tissue removal device according to claim 6, characterized in that: The outer wall of the digging portion (33) facing the first side (21) has a cutting surface (334), and the cutting surface (334) is parallel to the surface of the digging portion (33) facing the second side (22).

10. The diseased tissue removal device according to claim 4, characterized in that: The first connecting portion (12) is provided with a first mounting hole (121), and the extension rod (2) is provided with a second mounting hole (23); The diseased tissue removal device further comprises a connecting member (4), at least a portion of which passes through the first mounting hole (121) and the second mounting hole (23), so that the handle (1) and the extension rod (2) are detachably connected.

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