A multifunctional instrument for endoscopic surgery

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a multifunctional instrument for endoscopic surgery. The utility model provides a multifunctional instrument for endoscopic surgery in view of the single function of the prior art instrument, including handle, the one side of handle is fixed with outer tube, still be equipped with stripping subassembly and puncture subassembly on the handle, one end of stripping subassembly and puncture subassembly all extend to the outside of outer tube through outer tube, the end of puncture subassembly penetrates through the end of stripping subassembly and surrounds and forms the pulling space. The utility model can realize the separation of blood vessel or tissue by stripping subassembly, and the end of puncture subassembly and stripping subassembly can also surround and form the pulling space to realize the pulling of blood vessel or tissue, so that the instrument itself can realize multiple functions, and the application scene of the instrument is expanded.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a multifunctional instrument for laparoscopic surgery. Background Technology

[0002] The separation and traction of blood vessels or tissues are currently mainly performed using instruments such as dissecting forceps and grasping forceps. Forceps, due to the need for sufficient strength in their head design, are relatively difficult to operate in narrow areas and may obstruct the field of vision. Toothed forceps pose a risk of rupturing blood vessels during grasping and traction due to the teeth, while toothless forceps may slip, further increasing the difficulty of traction.

[0003] Other handheld instruments are also used, similar to the thyroid retractor structure disclosed in Chinese invention patent application CN108309375A. However, these instruments are typically used for a single function, usually only for separating blood vessels or tissues using the retractor. When traction is required, the common method is to manually thread a suture through some of the instrument's openings and then tie a knot to apply traction. This method is cumbersome, and the suture threading process and pulling the suture through the entire tissue / blood vessel consume a certain amount of surgical time. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a multifunctional instrument for laparoscopic surgery.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multifunctional instrument for laparoscopic surgery includes a handle, an outer tube fixedly disposed on one side of the handle, and a dissection component and a puncture component disposed on the handle. One end of the dissection component and the puncture component extend to the outside of the outer tube through the outer tube. The end of the puncture component passes through the end of the dissection component and surrounds it to form a traction space.

[0006] In the aforementioned multifunctional instrument for laparoscopic surgery, the dissection assembly includes a push rod disposed inside the handle, a push button located outside the handle and fixedly connected to the push rod, a dissection member fixedly connected to the end of the push rod away from the push button, one end of the dissection member extending to the outside of the outer tube and in a hook shape, and a first suture fixedly disposed on the inner surface of the dissection member.

[0007] In the aforementioned multifunctional instrument for laparoscopic surgery, the end of the dissecting member away from the push rod is provided with a through hole, and the first suture covers the through hole.

[0008] In the aforementioned multifunctional instrument for laparoscopic surgery, the puncture assembly includes a knob threadedly connected to the handle and a puncture member with one end extending to the outside of the outer tube. The knob and the puncture member are driven and connected by a transmission component. A second suture is fixedly provided on the surface of the puncture member near the dissecting component. The second suture and the first suture are two segments of the same suture.

[0009] In the aforementioned multifunctional instrument for laparoscopic surgery, rotating the knob allows the end of the puncture member away from the transmission member to pass through the through hole, and the second suture intersects the first suture at the through hole.

[0010] In the aforementioned multifunctional instrument for laparoscopic surgery, both the first suture and the second suture are flat sutures with a width greater than their thickness.

[0011] In the aforementioned multifunctional instrument for laparoscopic surgery, both the dissecting element and the puncture element are made of nickel-titanium alloy.

[0012] In the aforementioned multifunctional instrument for laparoscopic surgery, the push button has several protrusions and grooves on the side of its surface away from the outer surface of the handle, and the protrusions and grooves are arranged at intervals.

[0013] Compared with existing technologies, the advantages of this utility model are: 1. This utility model can use the dissection component to separate blood vessels or tissues, while the ends of the puncture component and the dissection component can be enclosed to form a traction space to achieve traction of blood vessels or tissues, so that the device itself can achieve multiple functions and expand the application scenarios of the device.

[0014] 2. This utility model has a simple structure, is easy to use, and is suitable for large-scale promotion and use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a structural schematic diagram of a portion of the present invention; Figure 4 This is a schematic diagram illustrating the usage process of this utility model; In the diagram: handle 1, outer tube 2, peeling component 3, puncture component 4, traction space 5, push rod 31, push button 32, peeling component 33, first suture 34, through hole 35, protrusion 36, groove 37, knob 41, puncture component 42, transmission component 43, second suture 44. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 As shown, a multifunctional instrument for laparoscopic surgery includes a handle 1, an outer tube 2 fixedly disposed on one side of the handle 1, a dissection component 3 and a puncture component 4 are also provided on the handle 1, one end of the dissection component 3 and the puncture component 4 both extend to the outside of the outer tube 2 through the outer tube 2, and the end of the puncture component 4 passes through the end of the dissection component 3 and surrounds to form a traction space 5.

[0018] In this invention, during use, the end of the dissecting component 3 extends to the outside of the outer tube 2 to dissect blood vessels or tissues. When traction is required, the puncture component 4 extends and passes through the end of the dissecting component 3, at which point the blood vessel or tissue is located within the traction space 5 and is thus pulled. Therefore, this invention can utilize the dissecting component 3 to separate blood vessels or tissues, while the ends of the puncture component 4 and the dissecting component 3 can enclose and form the traction space 5 to achieve traction of blood vessels or tissues, enabling the device to perform multiple functions and expanding its application scenarios.

[0019] like Figure 2 As shown, the peeling assembly 3 includes a push rod 31 disposed inside the handle 1, a push button 32 located outside the handle 1 and fixedly connected to the push rod 31, and a peeling member 33 fixedly connected to the end of the push rod 31 away from the push button 32, one end of the peeling member 33 extending to the outside of the outer tube 2 and in a hook shape, and a first suture 34 fixedly disposed on the inner surface of the peeling member 33. The puncture assembly 4 includes a knob 41 threadedly connected to the handle 1 and a puncture member 42 with one end extending to the outside of the outer tube 2, the knob 41 and the puncture member 42 being driven connected by a transmission member 43, and a second suture 44 fixedly disposed on the side surface of the puncture member 42 near the peeling member 33, the second suture 44 and the first suture 34 being two segments of the same suture.

[0020] This invention does not limit the specific structure of the transmission component 43; commonly used structures in the prior art can be selected, as long as they can transmit the movement along the axial direction generated by rotating the knob 41 to the piercing component 42. The actual structure of the transmission component 43 in this invention can be combined with... Figure 2 As shown, it comprises two sections: a front section connected to a knob 41 and a rear section connected to a piercing element 42. The front and rear sections are connected by a rod-shaped structure with a ball at one end. When the piercing element 42 needs to extend forward, rotating the knob 41 presses the front section onto the rear section, thus pushing the rear section forward. When the piercing element 42 needs to retract into the outer tube 2, rotating the knob 41 moves the front section backward. At this time, the large diameter of the ball pulls the rear section backward, thus retracting the piercing element 42.

[0021] like Figure 3As shown, the peeling member 33 has a through hole 35 at the end away from the push rod 31, and the first suture 34 covers the through hole 35. Rotating the knob 41 allows the end of the piercing member 42 away from the transmission member 43 to pass through the through hole 35, and the second suture 44 intersects the first suture 34 at the through hole 35.

[0022] When the piercing element 42 passes through the through hole 35, it causes the second suture 44 to self-cross with the first suture 34. Thus, pulling one end of the second suture 44 can be used for traction, without the need to tie a knot before traction as in the prior art, which greatly simplifies the traction operation.

[0023] Preferably, both the first suture 34 and the second suture 44 are flat sutures with a width greater than their thickness. Due to their unique shape, flat sutures have a larger contact area with tissues or blood vessels during traction, further protecting the tissues or blood vessels requiring traction. Furthermore, the self-crossing shape of flat sutures, as designed by the instrument, results in greater friction compared to round sutures, making them less prone to slippage. Flat sutures can be pre-installed on the instrument, using methods such as suture grooves, biocompatible adhesive, or pins. This eliminates the need for the surgeon to perform additional suture traction during the procedure.

[0024] Preferably, both the peeling element 33 and the piercing element 42 are made of nickel-titanium alloy. Nickel-titanium alloy has shape memory properties; after heat treatment and shaping, it can return to its set state without external force. Therefore, the peeling element 33 and the piercing element 42 can be pushed out with the flat wire and formed into a predetermined shape.

[0025] like Figure 2 As shown, the push button 32 has several protrusions 36 and grooves 37 on the side of its surface away from the outer surface of the handle 1, and the protrusions 36 and grooves 37 are arranged at intervals. This increases the friction when the push button 32 is pushed, preventing slippage.

[0026] The working principle of this utility model is: combining Figure 4 As shown in the figure, the circular structure represents the tissue or blood vessel to be pulled. In use, first push the push button 32. The push button 32, through the push rod 31, slowly pushes the dissecting element 33 to the outside of the outer tube 2. During this pushing process, the dissecting element 33 gradually achieves blunt dissection of the tissue or blood vessel. At this time, the instrument is in... Figure 4 The first image shows the current state. When traction is needed, rotate knob 41. Knob 41, through transmission component 43, slowly pushes the puncture member 42 out to the outside of the outer tube 2 until the puncture member 42 passes through the through hole 35. At this point, the instrument is in its normal position. Figure 4 The state of the second image. The surgical forceps are then... Figure 4 In the third image, pull out the second suture 44 at the arrow point. At this time, operate the push button 32 and the knob 41 to retract the dissecting part 33 and the puncture part 42 into the outer tube 2, and then withdraw the instrument. Figure 4 The state shown in the fourth image. At this point, the surgical gripper can achieve the traction function by pulling the flat wire. Therefore, this utility model can use the dissection component 3 to separate blood vessels or tissues, while the ends of the puncture component 4 and the dissection component 3 can be enclosed to form a traction space 5 to achieve traction of blood vessels or tissues, so that the instrument itself can achieve multiple functions and expand the application scenarios of the instrument.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0028] Although this document frequently uses terms such as handle 1, outer tube 2, peeling assembly 3, puncture assembly 4, pulling space 5, push rod 31, push button 32, peeling component 33, first suture 34, through hole 35, protrusion 36, groove 37, knob 41, puncture component 42, transmission component 43, and second suture 44, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A multifunctional instrument for laparoscopic surgery, comprising a handle (1), wherein an outer tube (2) is fixedly disposed on one side of the handle (1), characterized in that: The handle (1) is also provided with a peeling component (3) and a puncture component (4). One end of the peeling component (3) and the puncture component (4) extends to the outside of the outer tube (2) through the outer tube (2). The end of the puncture component (4) passes through the end of the peeling component (3) and encloses to form a traction space (5).

2. The multifunctional instrument for laparoscopic surgery as described in claim 1, characterized in that: The peeling assembly (3) includes a push rod (31) disposed inside the handle (1), a push button (32) located outside the handle (1) and the push rod (31) are fixedly connected, and a peeling member (33) is fixedly connected to one end of the push rod (31) away from the push button (32), and one end of the peeling member (33) extends to the outside of the outer tube (2) and is in the shape of a hook, and a first suture (34) is fixedly disposed on the inner surface of the peeling member (33).

3. The multifunctional instrument for laparoscopic surgery as described in claim 2, characterized in that: The peeling member (33) has a through hole (35) at one end away from the push rod (31), and the first stitch (34) covers the through hole (35).

4. A multifunctional instrument for laparoscopic surgery as described in claim 3, characterized in that: The puncture assembly (4) includes a knob (41) threaded to the handle (1) and a puncture member (42) with one end extending to the outside of the outer tube (2). The knob (41) and the puncture member (42) are driven to connect through a transmission member (43). A second suture (44) is fixedly provided on the side surface of the puncture member (42) near the peeling member (33). The second suture (44) and the first suture (34) are two segments of the same suture.

5. A multifunctional instrument for laparoscopic surgery as described in claim 4, characterized in that: Rotating the knob (41) allows the end of the piercing member (42) away from the transmission member (43) to pass through the through hole (35), and the second suture (44) intersects with the first suture (34) at the through hole (35).

6. The multifunctional instrument for laparoscopic surgery as described in claim 4, characterized in that: Both the first suture (34) and the second suture (44) are flat sutures with a width greater than their thickness.

7. A multifunctional instrument for laparoscopic surgery as described in claim 4, characterized in that: Both the stripping element (33) and the puncture element (42) are made of nickel-titanium alloy.

8. A multifunctional instrument for laparoscopic surgery as described in claim 2, characterized in that: The push button (32) has several protrusions (36) and grooves (37) on the side surface away from the outer surface of the handle (1), and the protrusions (36) and grooves (37) are arranged at intervals.

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