Prostate resection mirror capable of enhancing intracavity enucleation efficiency

Abstract

The invention relates to a prostate resection mirror capable of enhancing intracavity enucleation efficiency. The electric resection loop is of an inwards-sunken spade-shaped structure and comprises a first electric resection part and a second electric resection part, the first electric resection part is provided with a first arc-shaped part, the curvature of the middle position of the first arc-shaped part is larger than or equal to the curvature of the two sides of the first arc-shaped part, one side of the first electric resection part is connected with one side of the second electric resection part, and the other side of the first electric resection part is connected with the second electric resection part. And a through hole is formed in the second electric cutting part. The electric resection loop is arranged to be of the inwards-sunken plate-shaped structure, the first arc-shaped part is arranged on the first electric resection part, and therefore the electric resection loop can be inserted into the prostate surgery envelope plane more easily and is not prone to deformation, in addition, the electric resection loop is designed to be of the spade-shaped structure, and compared with an annular structure, the spade-shaped structure has higher strength, and the electric resection loop is more convenient to use. Therefore, when the electric resection loop is used for pushing prostate tissue, the electric resection loop is not prone to deformation, the electric resection loop can be protected in the operation process, and smooth operation is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of prostatectomy scopes, and in particular to an electric resection loop with more stable enucleation performance and a prostatectomy scope thereof. Background Art

[0002] In the related art, transurethral resection of the prostate is usually performed by using a prostate resectoscope to remove prostate tumors or stones in the prostate. During the operation, the prostate is mainly pushed and peeled by the front end of the inner sheath of the prostate resectoscope and the resection loop, but the resection loop is generally a ring structure composed of metal wires, as shown in the figure Figure 1 As shown, the traditional electrosurgical cutting loop is prone to deformation or even breakage when pushing the prostate tissue, which will affect the operation and further affect the health of the patient. Summary of the invention

[0003] Based on this, it is necessary to provide an electrosurgical resection loop and a prostate resectoscope that can enhance the efficiency of intracavitary enucleation to address the problem that the electrosurgical resection loop is easily deformed or even broken when pushing the prostate tissue.

[0004] The present invention provides an electric cutting loop, which is a spade-shaped structure bent to one side and has a through hole; two opposite side surfaces of the electric cutting loop are hemostatic surfaces, which are used to increase the contact area between the electric cutting loop and the prostate tissue and enhance the structural strength of the electric cutting loop; the hemostatic surface accounts for 30% to 70% of the projection area of ​​the electric cutting loop;

[0005] The electric cutting loop includes: a first electric cutting part and a second electric cutting part, the first electric cutting part is connected to the second electric cutting part, the first electric cutting part has a first arc-shaped part on a side away from the second electric cutting part, and the curvature of the middle position of the first arc-shaped part is greater than or equal to the curvature of the positions on both sides of the first arc-shaped part.

[0006] As a further improvement of the present invention, the second electrocuting portion has a second arc-shaped portion, and the curvature of the first arc-shaped portion is greater than the curvature of the second arc-shaped portion.

[0007] As a further improvement of the present invention, the second electrocuting portion has a second arc-shaped portion, and the curvatures of the positions on both sides of the first arc-shaped portion are equal to the curvature of the second arc-shaped portion.

[0008] As a further improvement of the present invention, a plurality of first protrusions are arranged at intervals on the outer peripheral wall of the electrical cutting loop.

[0009] As a further improvement of the present invention, in the thickness direction of the electrical cutting loop, the first protrusion has the same length as the electrical cutting loop.

[0010] As a further improvement of the present invention, a plurality of the first protrusions are arranged at equal intervals.

[0011] As a further improvement of the present invention, the cross-sectional shape of the first protrusion in the protruding direction is an arc-shaped structure.

[0012] As a further improvement of the present invention, the cross-sectional shape of the first protrusion is a polygonal structure, and a chamfer is provided between two adjacent sides of the first protrusion.

[0013] The present invention also proposes a prostate resectoscope capable of enhancing the efficiency of intracavitary enucleation, comprising: the above-mentioned electroresection loop, an outer sheath and an inner sheath, wherein a plurality of second protrusions are arranged on the bevel surface of the inner sheath.

[0014] As a further improvement of the present invention, a plurality of the second protrusions are arranged at intervals; and / or a cross-sectional shape of the second protrusion in the protruding direction is an arc-shaped structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention arranges the electrosurgical cutting loop into an inwardly concave plate-like structure, and arranges a first arc-shaped portion at the first electrosurgical cutting portion, so that the electrosurgical cutting loop can be more easily inserted into the plane of the prostate surgical capsule and is not easily deformed, so that the electrosurgical cutting loop can work better. In addition, the electrosurgical cutting loop is designed as a shovel-shaped structure. Compared with the ring structure, the shovel-shaped structure has higher strength, so that when the electrosurgical cutting loop is used to push the prostate tissue, it is not easy to deform, and thus the electrosurgical cutting loop can be prevented from deformation or even breakage during the operation, which is conducive to the smooth progress of the operation; at the same time, the shovel-shaped structure can increase the contact area between the electrosurgical cutting loop and the prostate tissue, which is conducive to improving the hemostatic effect.

[0017] 2. Multiple first protrusions are arranged at intervals on the outer wall of the cutting loop. The multiple first protrusions can increase the friction between the cutting loop and the prostate, so that when the cutting loop is used to push and peel the prostate, it is not easy to fall off, so that the cutting loop can work more effectively.

[0018] 3. The present invention can increase the friction between the inner sheath and the prostate endometrium by adding a second protrusion to the end of the inner sheath; when a larger pushing force is required, the inner sheath is used instead of the electrosurgical cutting loop to push and peel the prostate tissue, so that the prostate tissue can be pushed and peeled arbitrarily without damaging the electrosurgical cutting loop, and the inner sheath will not slide easily due to the second protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an electrosurgical cutting loop in the prior art;

[0020] Figure 2Schematic diagram of the structure of the electrosurgical loop according to an embodiment of the present invention;

[0021] Figure 3 FIG. 4 is a schematic diagram of a partial structure of a prostate resection mirror according to an embodiment of the present invention.

[0022] In the figure: 1, cutting loop; 11, first cutting portion; 111, first arcuate portion; 12, second cutting portion; 121, second arcuate portion; 122, through hole; 2, first protrusion; 3, outer sheath; 4, inner sheath; 41, second protrusion. DETAILED DESCRIPTION

[0023] 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 described embodiments 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.

[0024] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0025] The embodiment of the present invention proposes an electrosurgical loop. It should be noted that the electrosurgical loop 1 is a component of a prostatectomy scope, and when cutting tissue, the tissue is cut mainly by the energy generated by the laser or plasma emitted by the electrosurgical loop 1, and the electrosurgical loop 1 can be used to stop coagulation during the operation.

[0026] Specifically, Figure 2 As shown, the electrosurgical cutting loop 1 is a shovel-shaped structure that is concave inward. The electrosurgical cutting loop 1 is designed to be bent to one side and concave inward. At the same time, a through hole 122 needs to be opened on the electrosurgical cutting loop 1 so that the electrosurgical cutting loop 1 can produce a corresponding plasma effect to remove tissue and stop coagulation. Such a design can make the electrosurgical cutting loop 1 easier to insert into the plane of the prostate surgical capsule, and it is not easy to deform or be damaged, so that the electrosurgical cutting loop 1 can work better. In addition, the electrosurgical cutting loop 1 is designed as a shovel-shaped structure. Compared with the ring structure, the shovel-shaped structure has higher strength, so that when the electrosurgical cutting loop 1 is used to push the prostate tissue, it is not easy to deform, and then the electrosurgical cutting loop 1 can be protected during the operation, and it is conducive to the smooth progress of the operation.

[0027] It is particularly important to explain that, unlike the traditional electrosurgical cutting loop, the upper and lower sides of the electrosurgical cutting loop 1 in this embodiment are hemostatic surfaces, which have a relatively obvious and intuitive "surface", which is obviously different from the "line" structure of the traditional electrosurgical cutting loop. The area of ​​the hemostatic surface accounts for 30% to 70% of the projection area of ​​the entire electrosurgical cutting loop 1, that is, the size of the hemostatic surface of the electrosurgical cutting loop 1 is determined according to the size of the through hole 122. In practical applications, the larger the through hole 122, the higher the plasma intensity generated by the electrosurgical cutting loop 1, and the better its resection effect. The larger the hemostatic surface, the higher the structural strength of the electrosurgical cutting loop 1, and the less likely it is to deform or break. Therefore, the size of the hemostatic surface can be comprehensively considered in the actual situation, and the appropriate size can be selected, which has the advantages of good resection effect and high structural strength. In addition, the hemostatic surface on the electrosurgical cutting loop 1 can also increase the contact area between the electrosurgical cutting loop 1 and the prostate tissue, which is conducive to improving the hemostatic effect. These effects are all unattainable by the traditional electrosurgical cutting loop 1.

[0028] In addition, the electrocutting loop 1 includes a first electrocutting portion 11, and the first electrocutting portion 11 has a first arcuate portion 111, and the curvature of the middle position of the first arcuate portion 111 is greater than or equal to the curvature of the positions on both sides of the first arcuate portion 111. Among them, the first electrocutting portion 11 is the front part of the electrocutting loop 1, which is mainly used to push and peel the prostate and perform cutting and coagulation operations. In addition, the first arcuate portion 111 can also play a role in reducing resistance. In the process of pushing and peeling the prostate, the first arcuate portion 111 on the first electrocutting portion 11 first contacts the prostate endometrium. Since the size of the middle position of the first arcuate portion 111 is relatively small, the resistance of the first electrocutting portion 11 inserted into the prostate can be reduced. Moreover, the first arcuate portion 111 is an arc-shaped structure, so that in the process of inserting into the prostate, it can be gradually transitioned through the curved surface, thereby facilitating the electrocutting loop 1 to extend into the interior of the prostate.

[0029] In addition, the curvature of the middle position of the first arc-shaped portion 111 is greater than or equal to the curvature of the positions on both sides of the first arc-shaped portion 111. It can be understood that when the curvature of the middle position of the first arc-shaped portion 111 is greater than or equal to the curvature of the positions on both sides of the first arc-shaped portion 111, the first arc-shaped portion 111 is a circular arc structure, so that the first electrocuting portion 11 is better inserted into the prostate. It should be noted that when the curvature of the middle position of the first arc-shaped portion 111 is greater than the curvature of the positions on both sides of the first arc-shaped portion 111, it is more conducive to the insertion of the first electrocuting portion 11 into the prostate, but the middle of the first arc-shaped portion 111 cannot be too sharp, which will cause damage to the urethral mucosa.

[0030] In addition, the electrocutting loop 1 also includes a second electrocutting portion 12, one side of the first electrocutting portion 11 is connected to one side of the second electrocutting portion 12, and the first arc portion 111 is located on the side of the first electrocutting portion 11 away from the second electrocutting portion 12. The second electrocutting portion 12 is the rear part of the electrocutting loop 1, which is mainly used to push and peel the prostate and perform cutting and coagulation operations. One side of the first electrocutting portion 11 is connected to one side of the second electrocutting portion 12, so that the first electrocutting portion 11 and the second electrocutting portion 12 form a whole, that is, form a complete electrocutting loop 1, so that the structure of the electrocutting loop 1 can be more complete, and the stability and structural strength of the electrocutting loop 1 can also be improved.

[0031] The second electrocutting portion 12 has a second arc portion 121. It should be noted that in this embodiment, there are two second arc portions 121, which are respectively located on both sides of the second electrocutting portion 12, and the two second arc portions 121 are respectively connected to both sides of the first arc portion 111.

[0032] The curvature of the first arc-shaped portion 111 is greater than that of the second arc-shaped portion 121. The second arc-shaped portion 121 mainly plays the role of transition and resistance reduction. In the process of pushing and peeling the prostate, the first arc-shaped portion 111 on the first electrocuting portion 11 first contacts the prostate endometrium, and then the second arc-shaped portion 121 transitions with the prostate endometrium, which is beneficial to protect the prostate.

[0033] Moreover, the curvature of the first arc-shaped portion 111 is greater than that of the second arc-shaped portion 121. In other words, the curvature of the first arc-shaped portion 111 is greater than that of the second arc-shaped portion 121, that is, the dimension of the first electrocuting portion 11 near the first arc-shaped portion 111 is smaller than the width dimension of the second electrocuting portion 12, so that it is easier to insert into the interior of the prostate.

[0034] As an optional embodiment, the second electrocuting portion 12 has a second arc-shaped portion 121, and the curvature of the first arc-shaped portion 111 is equal to the curvature of the second arc-shaped portion 121. It can be understood that when the curvature at the middle position of the first arc-shaped portion 111 is equal to the curvature of the positions on both sides of the first arc-shaped portion 111, at this time, the first arc-shaped portion 111 and the second arc-shaped portion 121 are concentric circles, and the structure is simpler, thereby facilitating design and processing. When the curvature at the middle position of the first arc-shaped portion 111 is not equal to the curvature at the positions on both sides of the first arc-shaped portion 111, at this time, the positions on both sides of the first arc-shaped portion 111 can be on a concentric circle with the second arc-shaped portion 121, which is also conducive to design and processing.

[0035] In addition, a plurality of first protrusions 2 are arranged at intervals on the outer peripheral wall of the electrosurgical cutting loop 1. That is, a plurality of first protrusions 2 are arranged on the outer walls of the first arc-shaped portion 111 and the second arc-shaped portion 121. The first protrusions 2 mainly play the role of increasing friction, and can increase the gripping force between the electrosurgical cutting loop 1 and the corresponding tissue. For example, when the electrosurgical cutting loop 1 is used to remove a prostate tumor, the friction between the electrosurgical cutting loop 1 and the prostate can be increased, so that when the electrosurgical cutting loop 1 is pushed and peeled on the prostate, it is not easy to slip, and the electrosurgical cutting loop 1 can better remove the prostate tumor.

[0036] In addition, the plurality of first protrusions 2 are arranged at equal intervals. The plurality of first protrusions 2 are arranged at intervals, so that the distribution of the plurality of first protrusions 2 is more uniform, so that the force on the electric cutting loop 1 is more uniform, and the electric cutting loop 1 can work better.

[0037] Furthermore, the cross-sectional shape of the first protrusion 2 in the protruding direction is an arc structure. The cross-sectional shape of the first protrusion 2 is set to an arc structure, so that the surface of the protrusion 2 can be smoother, thereby increasing the friction between the electroresection loop 1 and the prostate endometrium while reducing the damage of the electroresection loop 1 to the prostate endometrium, thereby protecting the prostate.

[0038] As an optional embodiment, the cross-sectional shape of the first protrusion 2 in the protruding direction is a polygonal structure, and a chamfer is provided between two adjacent sides of the first protrusion 2. In other words, the first protrusion 2 may also be a polyhedral structure. When the first protrusion 2 is designed as a polyhedron, a chamfer is provided between two adjacent faces. The chamfer design can make a smooth transition between the two faces, thereby avoiding the sharp angle formed between the two faces from causing damage to the prostate endometrium.

[0039] As an optional embodiment, in the thickness direction of the cutting loop 1, the length of the first protrusion 2 is the same as that of the first cutting portion 11. In this way, the first protrusion 2 can be flush with the surface of the first cutting portion 11, making the connection between the first protrusion 2 and the first cutting portion 11 smoother and more integrated, thereby reducing the formation of sharp parts and further reducing the damage to the prostate endometrium.

[0040] like Figure 3 As shown, the present invention also proposes a prostate resectoscope, including the above-mentioned electrosurgical loop 1, outer sheath 3 and inner sheath 4, and a plurality of second protrusions 41 are arranged on the oblique end surface of the inner sheath 4. The second protrusions 41 can increase the friction between the inner sheath 4 and the prostate endometrium, and can prevent the inner sheath 4 from falling off during operation, thereby improving the stability of the prostate resectoscope during operation. Through the use of the inner sheath 4 and the electrosurgical loop 1. When encountering a prostate tissue with greater strength, the inner sheath 4 can be used for peeling. When encountering a prostate tissue with less strength, the electrosurgical loop 1 can be directly used for peeling, thereby preventing the electrosurgical loop 1 from being deformed or broken.

[0041] As an optional embodiment, the second protrusion 41 on the inner sheath 4 may be arranged in a range of 120° along the circumferential direction of the inner sheath 4 .

[0042] As an optional embodiment, the plurality of second protrusions 41 are arranged at intervals, so that the plurality of second protrusions 41 can be distributed more evenly, thereby making the force on the electrosurgical cutting loop 1 more even, and the electrosurgical cutting loop 1 can work better.

[0043] As an optional embodiment, the cross-sectional shape of the second protrusion 41 in the protruding direction may be an arc-shaped structure.

[0044] The cross-sectional shape of the second protrusion 41 is set to an arc structure, so that the surface of the second protrusion 41 can be smoother, thereby increasing the friction between the inner sheath 4 and the prostate endometrium while reducing the damage of the inner sheath 4 to the prostate endometrium, thereby protecting the prostate.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An electric cutting loop, characterized in that: The electrosurgical cutting loop (1) is a spade-shaped structure bent toward one side, and a through hole (122) is provided on the electrosurgical cutting loop (1); two opposite side surfaces of the electrosurgical cutting loop (1) are hemostatic surfaces, which are used to increase the contact area between the electrosurgical cutting loop (1) and the prostate tissue and enhance the structural strength of the electrosurgical cutting loop (1); The hemostatic surface occupies 30% to 70% of the projection area of ​​the electrosurgical cutting loop (1); The electrocutaneous cutting loop (1) comprises: a first electrocutaneous cutting portion (11) and a second electrocutaneous cutting portion (12); the first electrocutaneous cutting portion (11) and the second electrocutaneous cutting portion (12) are arranged integrally; the first electrocutaneous cutting portion (11) has a first arcuate portion (111) on a side away from the second electrocutaneous cutting portion (12), and the curvature of the middle position of the first arcuate portion (111) is greater than or equal to the curvature of the positions on both sides of the first arcuate portion (111).

2. The electrosurgical cutting loop according to claim 1, characterized in that: The second electrocuting portion (12) has a second arc-shaped portion (121), and the curvature of the first arc-shaped portion (111) is greater than the curvature of the second arc-shaped portion (121).

3. The electrosurgical cutting loop according to claim 1, characterized in that: The second electrocuting portion (12) has a second arc-shaped portion (121), and the curvatures of the positions on both sides of the first arc-shaped portion (111) are equal to the curvature of the second arc-shaped portion (121).

4. The electrosurgical cutting loop according to claim 1, characterized in that: A plurality of first protrusions (2) are arranged at intervals on the outer peripheral wall of the electrosurgical cutting loop (1).

5. The electrosurgical cutting loop according to claim 4, characterized in that: In the thickness direction of the electrocuting loop (1), the first protrusion (2) and the first electrocuting portion (11) have the same length.

6. The electrosurgical cutting loop according to claim 4, characterized in that: The plurality of first protrusions (2) are arranged at equal intervals.

7. The electrosurgical cutting loop according to claim 4, characterized in that: The cross-sectional shape of the first protrusion (2) in the protruding direction is an arc-shaped structure.

8. The electrosurgical cutting loop according to claim 4, characterized in that: The cross-sectional shape of the first protrusion (2) in the protruding direction is a polygonal structure, and a rounded corner is provided between two adjacent sides of the first protrusion (2).

9. A prostatectomy scope capable of enhancing the efficiency of intracavitary enucleation, characterized in that: include: An electrosurgical resection loop (1) as claimed in any one of claims 1 to 8; outer sheath (3); An inner sheath (4), wherein a plurality of second protrusions (41) are arranged on the oblique surface of the inner sheath (4).

10. A prostate resection scope according to claim 9, characterized in that: A plurality of the second protrusions (41) are arranged at intervals; and / or The cross-sectional shape of the second protrusion (41) is an arc-shaped structure.

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