Mammary gland tissue hook knife scissors for endoscopic surgery

Abstract

The utility model discloses a pair of breast tissue plastic scissors for endoscopic surgery. The pair of breast tissue plastic scissors comprises a handheld component, one end of the supporting rod is connected with the handheld assembly; the transmission rod is movably arranged on the supporting rod in a penetrating mode, the length direction of the transmission rod is parallel to the length direction of the supporting rod, and one end of the transmission rod is in transmission connection with the handheld assembly; one end, far away from a cutting edge, of the single-edge knife is connected to the other end of the supporting rod; one end, far away from the hook part, of the inner-edge hook knife is connected to the other end of the transmission rod; the cutting edge of the hook part of the inner-edge hook knife is opposite to the cutting edge of the single-edge knife; the handheld assembly operably drives the transmission rod to move in the length direction of the supporting rod, so that the cutting edge of the hook part of the inner-edge hook knife is close to or away from the cutting edge of the single-edge knife. The breast tissue hook knife scissors for the endoscopic surgery can also be used as a cutter.

Description

Technical Field

[0001] This utility model relates to the field of surgical tool technology, and in particular to a breast tissue hook scissor for laparoscopic surgery. Background Technology

[0002] In the process of performing laparoscopic breast surgery, laparoscopic breast tissue scissors and laparoscopic breast tissue scalpels are essential tools to ensure the efficiency and safety of the operation.

[0003] Currently, the breast tissue scissors used in related technologies can only function as scissors and cannot be used as scalpels to cut tissue. During the operation, it is necessary to repeatedly alternate between using endoscopic breast tissue scissors and endoscopic breast tissue scalpels, resulting in low surgical efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a breast tissue hook scissor for laparoscopic surgery, which can also be used as a cutting tool.

[0005] According to this utility model, a breast tissue hook scissor for laparoscopic surgery includes: a handheld assembly; a support rod, one end of which is connected to the handheld assembly; a transmission rod, which is movably inserted through the support rod and whose length direction is parallel to that of the support rod, one end of which is connected to the handheld assembly; a single-edged blade and an inner-edged hook blade, the end of which is away from its cutting edge is connected to the other end of the support rod; the end of which is away from its hook portion is connected to the other end of the transmission rod; the cutting edge of the hook portion of the inner-edged hook blade is opposite to the cutting edge of the single-edged blade; wherein, the handheld assembly operably drives the transmission rod to move along the length direction of the support rod, so that the cutting edge of the hook portion of the inner-edged hook blade approaches or moves away from the cutting edge of the single-edged blade.

[0006] The breast tissue hook scissors for laparoscopic surgery according to the embodiments of this utility model have at least the following beneficial effects:

[0007] In this invention, the breast tissue hook scissors for laparoscopic surgery include a handheld component for the operator to hold and move the scissors to a specific position. Under the operator's control, the handheld component drives the transmission rod to move relative to the support rod along its length, causing the cutting edge of the inner hook to move closer to or further away from the cutting edge of the single-edged blade. When the cutting edge of the inner hook is close to the single-edged blade, it performs a cutting function; when the cutting edge moves away, the inner hook can be used independently as a cutting tool to cut breast tissue. Thus, during surgery, there is no need to repeatedly switch surgical tools, improving surgical efficiency.

[0008] According to some embodiments of the present invention, the handheld assembly includes a first handle and a second handle rotatably connected to the first handle. The end of the support rod away from the single-edged knife is connected to the first handle, and the second handle is tractively connected to the end of the transmission rod away from the inner-edged hook knife.

[0009] According to some embodiments of the present invention, the first handle and the second handle are rotatably connected by a pivot.

[0010] According to some embodiments of the present invention, the first handle includes a first hand-held portion and a support portion connected to the first hand-held portion; the second handle includes a second hand-held portion and a transmission portion connected to the second hand-held portion; the portion between the first hand-held portion and the support portion is rotatably connected to the portion between the second hand-held portion and the transmission portion.

[0011] The support part is connected to the end of the support rod away from the single-edged knife, and the transmission part is connected to the end of the transmission rod away from the inner-edged hook knife.

[0012] According to some embodiments of the present utility model, the transmission part is provided with a clearance hole, the end of the transmission rod away from the inner blade hook passes through the clearance hole, and the end of the transmission rod away from the inner blade hook is connected to a limiting part that cooperates with the transmission part for limiting. The second handle is provided with a support plate located on the side of the limiting part away from the transmission part, and an elastic member is held between the support plate and the limiting part.

[0013] The clearance hole is configured such that when the transmission part rotates relative to the support part, the transmission part does not force the transmission rod to move along the length direction of the non-support rod.

[0014] According to some embodiments of the present invention, the clearance hole is a strip-shaped hole, and the direction of the speed of the transmission part when rotating relative to the support part is perpendicular to the length direction of the clearance hole.

[0015] According to some embodiments of this utility model, the elastic element is a spring.

[0016] According to some embodiments of the present invention, the breast tissue hook scissors for laparoscopic surgery further includes a knob, the knob being rotatably disposed on the support portion, the end of the support rod away from the single-edged blade being connected to the knob, the knob being operable to drive the support rod to rotate around the axis of the support rod, and the transmission rod being able to rotate with the support rod.

[0017] According to some embodiments of the present invention, the support rod is provided with a rectangular hole extending along the axial direction of the support rod, and the transmission rod has a rectangular segment passing through the rectangular hole.

[0018] According to some embodiments of the present invention, the support rod is provided with a circular hole extending along the axial direction of the support rod, the transmission rod passes through the circular hole, one of the outer wall of the transmission rod and the hole wall of the circular hole is provided with an axial groove, and the other is provided with a protrusion disposed in the axial groove, wherein the protrusion is configured to be axially movable relative to the axial groove.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a breast tissue hook scissor for laparoscopic surgery according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0024] Figure 4 This is a partial structural diagram of a breast tissue hook scissor for laparoscopic surgery according to an embodiment of the present invention.

[0025] Figure 5 This is a motion simulation diagram of the transmission part.

[0026] Icon labels:

[0027] 100. Handheld assembly; 110. First handle; 111. First handheld part; 112. Support part; 120. Second handle; 121. Second handheld part; 122. Transmission part; 1221. Clearance hole; 130. Rotating shaft; 140. Support plate; 150. Elastic element;

[0028] 200, support rod; 210, rectangular hole;

[0029] 300. Transmission rod; 310. Rectangular segment; 320. Circular segment; 330. Limiting part;

[0030] 400. Single-edged knife;

[0031] 500. Inner-blade hook knife;

[0032] 600, Knob. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figure 1 As shown, an embodiment of the present invention relates to a breast tissue hook scissor for laparoscopic surgery, comprising a handheld component 100, a support rod 200, a transmission rod 300, a single-edged blade 400, and an inner-edged hook blade 500.

[0037] like Figure 1 As shown, the handheld component 100 is used by the operator to hold the laparoscopic breast tissue hook scissors so that they can be moved to a specific position.

[0038] like Figure 1As shown, one end of the support rod 200 is connected to the handheld assembly 100. Specifically, one end of the support rod 200 is connected to the handheld assembly 100, and the support rod 200 extends from the handheld assembly 100 away from the handheld assembly 100.

[0039] The cross-sectional outline of the support rod 200 can be circular or polygonal.

[0040] like Figure 1 As shown, the transmission rod 300 is movably inserted through the support rod 200, and the length direction of the transmission rod 300 is parallel to the length direction of the support rod 200.

[0041] Specifically, the support rod 200 is used to support the transmission rod 300. The transmission rod 300 is coaxially arranged with the support rod 200, and the transmission rod 300 can move relative to the support rod 200 along the length direction of the support rod 200.

[0042] In other embodiments, the axis of the transmission rod 300 does not coincide with the axis of the support rod 200; however, the axis of the transmission rod 300 is parallel to the axis of the support rod 200.

[0043] Combination Figure 1 and Figure 2 Furthermore, one end of the transmission rod 300 extends out of the support rod 200 and is connected to the handheld assembly 100 for transmission. The handheld assembly 100 can drive the transmission rod 300 to move relative to the support rod 200 along the length direction of the support rod 200 under the operation of the operator.

[0044] Combined with the diagram Figure 1 and Figure 3 The end of the single-edged knife 400 away from its cutting edge is connected to the end of the support rod 200 away from the hand-held component 100, and the end of the inner-edged hook knife 500 away from its hook is connected to the end of the transmission rod 300 away from the hand-held component 100.

[0045] Specifically, the cutting edge of the single-edged knife 400 is located at one end of the single-edged knife 400, and the end of the single-edged knife 400 away from its cutting edge is connected to the end of the support rod 200 away from the hand-held assembly 100. One end of the inner-edged hook knife 500 is connected to the end of the transmission rod 300 away from the hand-held assembly 100, and the cutting edge of the hook portion of the inner-edged hook knife 500 is positioned opposite to the cutting edge of the single-edged knife 400. It can be understood that the cutting edge of the inner-edged hook knife 500 is located inside its hook portion.

[0046] Combination Figure 1 and Figure 3When the handheld component 100 is operated by the operator, it can drive the transmission rod 300 to move relative to the support rod 200 along the length of the support rod 200, so that the cutting edge of the hook part of the inner blade hook 500 approaches or moves away from the cutting edge of the single blade 400. When the cutting edge of the hook part of the inner blade hook 500 approaches the cutting edge of the single blade 400, it can perform a cutting function. When the cutting edge of the hook part of the inner blade hook 500 moves away from the cutting edge of the single blade 400, the hook part of the inner blade hook 500 can be used alone as a cutting knife to cut open breast tissue.

[0047] like Figure 1 As shown, in some embodiments, the handheld assembly 100 includes a first handle 110 and a second handle 120 rotatably connected to the first handle 110. The end of the support rod 200 away from the single-edged blade 400 is connected to the first handle 110, and the second handle 120 is tractively connected to the end of the transmission rod 300 away from the inner-edged hook blade 500.

[0048] It is understandable that the first handle 110 serves to support the support rod 200, and the second handle 120 can rotate relative to the first handle 110 under the operation of the operator, thereby driving the transmission rod 300 to move relative to the support rod 200 along the length of the support rod 200, so that the cutting edge of the hook part of the inner blade hook knife 500 is close to or away from the cutting edge of the single blade knife 400.

[0049] It should be noted that the use of the first handle 110 and the second handle 120 for the operator to hold can also reduce the risk of slipping.

[0050] Combination Figure 1 and Figure 2 Specifically, the first handle 110 includes a first hand-held portion 111 and a support portion 112 connected to the first hand-held portion 111, and the second handle 120 includes a second hand-held portion 121 and a transmission portion 122 connected to the second hand-held portion 121; the portion between the first hand-held portion 111 and the support portion 112 is rotatably connected to the portion between the second hand-held portion 121 and the transmission portion 122.

[0051] It is understood that the part between the first hand-held part 111 and the support part 112, and the part between the second hand-held part 121 and the transmission part 122 are rotatably connected by a pivot 130. The first hand-held part 111 and the second hand-held part 121 are convenient for the operator to hold. When the operator rotates the second hand-held part 121 relative to the first hand-held part 111, the transmission part 122 can rotate in an arc relative to the support part 112 to move closer to or away from the support part 112.

[0052] It should be noted that the end of the support rod 200 away from the single-edged knife 400 is connected to the support part 112, and the end of the transmission rod 300 away from the inner-edged hook knife 500 is connected to the transmission part 122.

[0053] It is understandable that when the operator rotates the second hand-held part 121 relative to the first hand-held part 111, so that the transmission part 122 rotates in an arc relative to the support part 112 and moves closer to or away from the support part 112, the transmission rod 300 can be driven to move relative to the support rod 200 along the length direction of the support rod 200.

[0054] Specifically, the transmission part 122 is provided with a clearance hole 1221. The end of the transmission rod 300 away from the inner blade hook 500 passes through the clearance hole 1221, and the end of the transmission rod 300 away from the inner blade hook 500 is provided with a limiting part 330 that cooperates with the transmission part 122 for limiting. The width of the limiting part 330 is greater than the width of the clearance hole 1221, and the limiting part 330 will not enter the clearance hole 1221. The second handle 120 is provided with a support plate 140 located on the side of the limiting part 330 away from the transmission part 122. The support plate 140 and the limiting part 330 abut against an elastic member 150. The clearance hole 1221 is configured such that when the transmission part 122 rotates relative to the support part 112, the transmission part 122 does not force the transmission rod 300 to move along the length direction of the non-support rod.

[0055] Combination Figure 2 and Figure 5 It should be noted that the clearance hole 1221 is a strip-shaped hole, and the direction of the speed of the transmission part 122 when it rotates relative to the support part 112 is perpendicular to the length direction of the clearance hole 1221.

[0056] It is understandable that when the transmission part 122 rotates relative to the support part 112, the velocity direction of the transmission part 122 relative to the support part 112 changes at any time. However, the length direction of the clearance hole 1221 always remains perpendicular to the velocity direction of the transmission part 122. Thus, when the transmission part 122 rotates relative to the support part 112, the transmission part 122 does not force the transmission rod 300 to move along the length direction of the non-support rod.

[0057] Furthermore, the elastic element 150 can be a spring, which applies pressure to the limiting part 330 so that the limiting part 330 always remains against the transmission part 122, thereby enabling the transmission rod 300 to move relative to the support rod 200 along the length direction of the support rod 200 when the first handle 110 and the second handle 120 are opened and closed, so that the cutting edge of the hook part of the inner blade hook 500 approaches or moves away from the cutting edge of the single blade 400.

[0058] In addition, when the second handle 120 rotates relative to the first handle 110, the angle change of the second handle 120 is relatively small, and the angle change of the support plate 140 with the second handle 120 is also relatively small. Although it will cause the elastic element 150 to deflect at a certain angle near the end of the support plate 140, it does not affect the effect of the spring.

[0059] Combination Figure 1 and Figure 2 In some embodiments, the breast tissue hook scissors for laparoscopic surgery also includes a knob 600, which is rotatably disposed on the support portion 112. The end of the support rod 200 away from the single-edged blade 400 is connected to the knob 600. The knob 600 can operably drive the support rod 200 to rotate around the axis of the support rod 200, and the transmission rod 300 can rotate with the support rod 200.

[0060] Understandably, the knob 600 can rotate relative to the support 112. The rotation axis 130 of the knob 600 coincides with the axis of the support rod 200. When the knob 600 rotates, it will drive the support rod 200 and the transmission rod 300 to rotate together, thereby causing the inner blade hook 500 and the single blade 400 to rotate together and adjust their angles.

[0061] Combination Figure 2 and Figure 4 Specifically, the end of the support portion 112 away from the first hand-held portion 111 is a cylindrical structure, and the knob 600 is rotatably fitted onto the cylindrical structure. The end of the support rod 200 away from the single-edged blade 400 is fixedly inserted into the knob 600. Furthermore, the support rod 200 has a rectangular hole 210 extending axially along the support rod 200, wherein the cross-section of the rectangular hole 210 is rectangular. The transmission rod 300 has a rectangular segment 310 passing through the rectangular hole 210, wherein the cross-section of the rectangular segment 310 is rectangular. Thus, when the knob 600 is rotated, the knob 600 drives the support rod 200 and the transmission rod 300 to rotate together, thereby causing the inner-edged hook blade 500 and the single-edged blade 400 to rotate together and adjust their angles.

[0062] Furthermore, the transmission rod 300 also has a circular segment 320 with a circular cross-section. The circular segment 320 is connected to the end of the rectangular segment 310 away from the inner cutting hook 500. The circular segment 320 passes through the clearance hole 1221. The limiting part 330 is rotatably connected to the circular segment 320 via a bearing. The limiting part 330 is capable of transmission relative to the entire transmission rod 300. The limiting part 330 is connected to the end of the elastic member 150 away from the support plate 140. In this way, when the transmission rod 300 rotates, the limiting part 330 will not rotate with the transmission rod 300, which can prevent the elastic member 150 from being twisted and damaged.

[0063] Specifically, the limiting part 330 has a circular mounting groove at one end near the transmission part 122, the bearing is placed in the circular mounting groove, the outer ring of the bearing abuts against the side wall of the circular mounting groove, and the circular segment 320 passes through the bearing and abuts against the inner ring of the bearing.

[0064] In other embodiments, the support rod 200 has a circular hole extending axially along the support rod 200. The cross-section of the circular hole is circular. The transmission rod 300 passes through the circular hole. One of the outer wall of the transmission rod 300 and the hole wall of the circular hole has an axial groove, and the other has a protrusion disposed in the axial groove. The protrusion is configured to be able to move axially relative to the axial groove. This structure also allows the support rod 200 and the transmission rod 300 to rotate together when the knob 600 is turned, thereby causing the inner blade hook 500 and the single blade 400 to rotate together and adjust their angle.

[0065] In this invention, the breast tissue hook scissors for laparoscopic surgery include a handheld component 100 for the operator to hold and move the scissors to a specific position. Under the operator's control, the handheld component 100 drives the transmission rod 300 to move relative to the support rod 200 along the length of the support rod 200, causing the cutting edge of the inner blade hook 500 to move closer to or further away from the cutting edge of the single blade 400. When the cutting edge of the inner blade hook 500 is close to the cutting edge of the single blade 400, it performs a cutting function; when the cutting edge of the inner blade hook 500 is far from the cutting edge of the single blade 400, the hook of the inner blade hook 500 can be used alone as a cutting tool to cut breast tissue. Thus, during the surgery, there is no need to repeatedly switch surgical tools, improving surgical efficiency.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A breast tissue hook scissor for laparoscopic surgery, characterized in that, include: Handheld components; A support rod, one end of which is connected to the handheld assembly; A transmission rod is movably inserted through the support rod, and the length direction of the transmission rod is parallel to the length direction of the support rod. One end of the transmission rod is connected to the handheld assembly for transmission. A single-edged knife and an inner-edged hook knife, wherein the end of the single-edged knife away from its cutting edge is connected to the other end of the support rod; the end of the inner-edged hook knife away from its hook portion is connected to the other end of the transmission rod; the cutting edge of the hook portion of the inner-edged hook knife is arranged opposite to the cutting edge of the single-edged knife. The handheld component can operably drive the transmission rod to move along the length of the support rod, so that the cutting edge of the hook of the inner blade is close to or away from the cutting edge of the single blade.

2. The breast tissue hook scissors for laparoscopic surgery according to claim 1, characterized in that, The handheld assembly includes a first handle and a second handle rotatably connected to the first handle. The end of the support rod away from the single-edged knife is connected to the first handle, and the second handle is tractively connected to the end of the transmission rod away from the inner-edged hook knife.

3. The breast tissue hook scissors for laparoscopic surgery according to claim 2, characterized in that, The first handle and the second handle are rotatably connected by a pivot.

4. The breast tissue hook scissors for laparoscopic surgery according to claim 2, characterized in that, The first handle includes a first hand-held portion and a support portion connected to the first hand-held portion; the second handle includes a second hand-held portion and a transmission portion connected to the second hand-held portion; the portion between the first hand-held portion and the support portion is rotatably connected to the portion between the second hand-held portion and the transmission portion. The support part is connected to the end of the support rod away from the single-edged knife, and the transmission part is connected to the end of the transmission rod away from the inner-edged hook knife.

5. The breast tissue hook scissors for laparoscopic surgery according to claim 4, characterized in that, The transmission part is provided with a clearance hole, and the end of the transmission rod away from the inner blade hook passes through the clearance hole. The end of the transmission rod away from the inner blade hook is connected to a limiting part that cooperates with the transmission part. The second handle is provided with a support plate located on the side of the limiting part away from the transmission part. An elastic member is held between the support plate and the limiting part. The clearance hole is configured such that when the transmission part rotates relative to the support part, the transmission part does not force the transmission rod to move along the length direction of the non-support rod.

6. The breast tissue hook scissors for laparoscopic surgery according to claim 5, characterized in that, The clearance hole is a strip-shaped hole, and the direction of the speed of the transmission part when it rotates relative to the support part is perpendicular to the length direction of the clearance hole.

7. The breast tissue hook scissors for laparoscopic surgery according to claim 5, characterized in that, The elastic element is a spring.

8. The breast tissue hook scissors for laparoscopic surgery according to claim 4, characterized in that, It also includes a knob, which is rotatably disposed on the support portion. The end of the support rod away from the single-edged blade is connected to the knob. The knob can operably drive the support rod to rotate around the axis of the support rod, and the transmission rod can rotate with the support rod.

9. The breast tissue hook scissors for laparoscopic surgery according to claim 8, characterized in that, The support rod has a rectangular hole extending along the axial direction of the support rod, and the transmission rod has a rectangular segment passing through the rectangular hole.

10. The breast tissue hook scissors for laparoscopic surgery according to claim 8, characterized in that, The support rod has a circular hole extending along the axial direction of the support rod, and the transmission rod passes through the circular hole. One of the outer wall of the transmission rod and the hole wall of the circular hole has an axial groove, and the other has a protrusion disposed in the axial groove. The protrusion is configured to be axially movable relative to the axial groove.

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