Non-invasive surgical forceps

Abstract

The present application provides a non-invasive surgical forceps, comprising: a forceps head, an operating cable for controlling the forceps head and a working sheath with a hollow structure for covering the operating cable; further comprising: an operating handle for controlling the operating cable to slide back and forth along the working sheath; the forceps head comprises: a hollow sheath shell connected to an end of the working sheath relatively far away from the operating handle and at least two clamps arranged in the sheath shell and rotatably connected to the inner wall of the sheath shell; the end of the operating cable can enter between the clamps and the end of the operating cable is provided with an actuating component that can drive the free ends of the clamps to switch between the two states of gathering or separation as the operating cable is controlled to slide back and forth along the working sheath.

Description

Technical Field

[0001] The present disclosure specifically discloses a non-invasive surgical forceps. Background Art

[0002] Choledochoscopes are mainly used for endoscopic examination of the pancreatic and bile ducts and endoscopic surgery, and are increasingly used in clinical practice. During existing choledochoscope surgery for acute necrotizing pancreatitis, necrotic tissue removal and grasping are often required. In the existing necrotic tissue removal process, there are no non-invasive surgical forceps through choledochoscopes, which urgently needs to be improved. Summary of the invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a non-invasive surgical forceps that can separate and grasp necrotic tissue under choledochoscopy and minimize damage to normal tissue compared to the prior art.

[0004] A non-invasive surgical forceps, comprising: a forceps head, an operating cable for controlling the forceps head and a working sheath with a hollow structure for covering the operating cable; further comprising: an operating handle for controlling the operating cable to slide back and forth along the working sheath; the forceps head comprises: a hollow sheath shell connected to an end of the working sheath relatively far away from the operating handle and at least two clamps arranged in the sheath shell and rotatably connected to the inner wall of the sheath shell; the end of the operating cable can enter between the clamps and the end of the operating cable is provided with an actuating component that can slide back and forth along the working sheath as the operating cable is controlled, and drive the free ends of the clamps to switch between the two states of gathering or separation.

[0005] According to the technical solution provided in the embodiment of the present application, the actuating assembly includes: an actuating block provided on one end of the operating cable entering the clamp and a flexible connector for connecting the actuating block to all the clamps respectively.

[0006] According to the technical solution provided in the embodiment of the present application, the actuating assembly includes: actuating plates corresponding to the number of the clamps; one end of the actuating plate relatively close to the operating cable is hinged to it and one end of the actuating plate relatively close to the clamp is rotatably connected to the clamp.

[0007] According to the technical solution provided in the embodiment of the present application, the number of the clamps is three and they are evenly distributed in a circular array inside the working sheath; the free ends of the clamps are curved structures and clamping protrusions are provided on the side walls of the clamps that are close to each other; when the free ends of the clamps are completely gathered together, the edges of the clamping protrusions just contact each other in sequence.

[0008] According to the technical solution provided in the embodiment of the present application, the clamping protrusion includes: an arcuate inner protrusion fixedly connected to the clamp and a gelatinous outer protrusion covering the outer side of the arcuate inner protrusion.

[0009] According to the technical solution provided in the embodiment of the present application, a plurality of tooth-shaped inner protrusions distributed along the length direction of the arched inner protrusion are provided on a side of the arched inner protrusion relatively far away from the clamp.

[0010] According to the technical solution provided in the embodiment of the present application, the operating handle includes: a fixed handle connected to the working sheath and a movable handle connected to the operating cable and capable of sliding relative to the fixed handle.

[0011] According to the technical solution provided in the embodiment of the present application, the working sheath is an elastic steel wire telescopic tube.

[0012] In summary, the present application discloses a specific structure of a non-invasive surgical forceps. Based on the technical solution described in the present application, by manipulating the operating cable to slide back and forth along the working sheath, the actuating assembly can slide back and forth along the working sheath with the manipulating operating cable, and drive the free end of the clamp to switch between the two states of gathering or separation, that is, when the operating cable is moved along the axis of the working sheath in a direction away from the operating handle, the actuating assembly on the operating cable drives the end of the clamp that is relatively close to the operating cable to approach each other, and the free ends of the clamp are separated in a direction away from each other. At this time, the clamp in a separated state can have a separation effect on the necrotic tissue. When the operating cable is moved along the axis of the working sheath in a direction close to the operating handle, the actuating assembly on the operating cable gradually approaches the end of the clamp that is relatively close to the operating cable and makes the ends away from each other, and the free ends of the clamp gather in a direction close to each other. At this time, the clamp in a gathered state can achieve stable clamping of the necrotic tissue. Then, the non-invasive surgical forceps is taken out to complete a clamping operation, and the operation can be repeated until the necrotic tissue is completely taken out.

[0013] Furthermore, the technical solution further optimizes the specific structure of the entire non-invasive surgical forceps, such as providing different implementation structures of the actuating assembly, optimizing the structural design of the specific clamp, and optimizing the structural design of the clamping protrusion. Based on the above preferred designs, the practicality and reliability of the non-invasive surgical forceps in this application are greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0015] Figure 1 Shown is a specific embodiment of a non-invasive surgical forceps.

[0016] Figure 2a Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0017] Figure 2b Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0018] Figure 3a Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0019] Figure 3b Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0020] Figure 4 Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0021] Figure 5 Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0022] Figure 6 Shown is a specific implementation of a clamp in a non-invasive surgical forceps.

[0023] Figure 7 Shown is a specific implementation of a clamp in a non-invasive surgical forceps. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] The non-invasive surgical forceps disclosed in the present disclosure, the specific implementation method thereof is as follows: Figure 1 As shown:

[0027] Figure 1 The non-invasive surgical forceps include: a forceps head 10, an operating cable 20 for controlling the forceps head 10 and a hollow working sheath 30 for covering the operating cable 20; and also include: an operating handle 50 for controlling the operating cable 20 to slide back and forth along the working sheath 30.

[0028] in:

[0029] The working sheath 30 has two openings at both ends and is in a hollow cylindrical structure, which can allow the operating cable to pass through, and its material can be silicone. Optionally, the working sheath is an elastic steel wire telescopic tube. Based on this design, the working range of the working sheath can be extended within a certain range, so that the working sheath has more usage scenarios.

[0030] The operating cable 20 has an operating handle connected to one end thereof, and the operating handle is used to control the operating cable 20 to slide back and forth along the working sheath 30. Optionally, the operating cable can be made of a rigid material, such as a steel wire. It can also be a rod-shaped structure.

[0031] Specifically, the operating handle in this embodiment has a variety of structural forms, and can adopt the existing biopsy forceps operation method. Optionally, in any preferred embodiment, the operating handle 50 includes: a fixed handle 51 connected to the working sheath 30 and a movable handle 52 connected to the operating cable 20 and capable of sliding relative to the fixed handle 51. Please refer to Figure 1 .

[0032] The end of the operating cable 20 can enter between the clamps 12 and is provided with an actuating assembly 40 which can slide back and forth along the working sheath 30 as the operating cable 20 is manipulated to drive the free end of the clamps 12 to switch between the two states of gathering or separation.

[0033] The pliers head 10 comprises: a hollow sheath 11 connected to an end of the working sheath 30 relatively far from the operating handle 50 and at least two clamps 12 arranged in the sheath 11 and rotatably connected to the inner wall of the sheath 11;

[0034] The sheath shell 11 is connected to the working sheath and serves as a basic structure for installing the clamp.

[0035] The clamp is rotatably connected to the inner wall of the sheath.

[0036] In one application scenario, when there are two clamps, the two clamps are symmetrically distributed in the sheath, and the clamps can be rotatably connected to the sheath via a rotating shaft disposed in the sheath. A space capable of accommodating the actuating assembly on the operating cable is formed between the two clamps.

[0037] In another application scenario, when there are three clamps, the three clamps are distributed in a circular array in the sheath, and the clamps can be rotatably connected to the sheath via a rotating shaft disposed in the sheath. A space capable of accommodating the actuating assembly on the operating cable is formed between the three clamps.

[0038] In a specific application, when the control cable moves along the axis of the working sheath toward the direction away from the operating handle, the actuating assembly on the control cable drives the end of the clamp that is relatively close to the control cable to approach each other, and the free ends of the clamp separate in a direction away from each other. At this time, the clamp in a separated state can have a separation effect on necrotic tissue. When the control cable moves along the axis of the working sheath toward the direction close to the operating handle, the actuating assembly on the control cable gradually approaches the end of the clamp that is relatively close to the control cable and moves the ends away from each other, and the free ends of the clamp gather in a direction close to each other. At this time, the clamp in a gathered state can achieve stable clamping of necrotic tissue.

[0039] Then, the non-invasive surgical forceps are removed to complete a clamping operation, which can be repeated until the necrotic tissue is completely removed.

[0040] like Figure 2a and Figure 2b In one embodiment of the actuating assembly shown, the actuating assembly 40 comprises: an actuating block 41 provided on one end of the operating cable 20 entering the clamp 12 and a flexible connecting member 42 for connecting the actuating block 41 to all the clamps 12 respectively.

[0041] When the operating cable is controlled to move along the axis of the working sheath in a direction away from the operating handle, the actuating block drives the flexible connector, thereby driving the ends of the clamps that are relatively close to the operating cable to move closer to each other, and the free ends of the clamps separate in a direction away from each other. At this time, the clamps in a separated state can have a separation effect on necrotic tissue.

[0042] When the operating cable is controlled to move along the axis of the working sheath toward the operating handle, the actuating block retreats to a position on the clamp that is relatively close to one end of the operating cable and is able to maintain the ends away from each other, and the free ends of the clamp gather toward each other. At this time, the clamp in the gathered state can achieve stable clamping of necrotic tissue.

[0043] Optionally, the actuating block is preferably a columnar structure.

[0044] Optionally, the flexible connecting member is an elastic rib, a connecting wire, etc.

[0045] Optionally, a stopper capable of preventing the actuating block from detaching from the clamp is provided on an end of the clamp relatively close to the operating cable.

[0046] like Figure 3a and Figure 3bIn one embodiment of the actuating assembly shown, the actuating assembly 40 includes: actuating plates 43 corresponding to the number of the clamps 12; one end of the actuating plate 43 relatively close to the operating cable 20 is hinged thereto and one end of the actuating plate 43 relatively close to the clamp 12 is rotatably connected to the clamp 12.

[0047] When the control cable moves along the axis of the working sheath in the direction away from the operating handle, the actuator plate is folded in the direction close to the operating cable, thereby driving the ends of the clamps that are relatively close to the operating cable to approach each other, and the free ends of the clamps are separated in the directions away from each other. At this time, the clamps in the separated state can have a separation effect on necrotic tissue.

[0048] When the control cable moves along the axis of the working sheath toward the operating handle, the actuator plate is folded in the direction away from the operating cable until the end of the clamp connected to it that is relatively close to the operating cable is moved away from each other and can maintain the state of the ends being away from each other, and the free ends of the clamp are gathered in the direction of approaching each other. At this time, the clamp in the gathered state can achieve stable clamping of necrotic tissue.

[0049] Please refer to Figure 4 As shown in the structural schematic diagram of the clamp, there are three clamps 12 and they are evenly distributed in a circular array inside the working sheath 30; the free ends of the clamps 12 are curved structures and clamping protrusions 121 are provided on the side walls of the clamps 12 that are close to each other; when the free ends of the clamps 12 are fully gathered together, the edges of the clamping protrusions 121 just contact each other in sequence.

[0050] Optionally, the clamp 12 is of a plate-type structure, and the design of the plate-type structure can increase the actual working area of ​​the clamp.

[0051] In this embodiment, a specific number of clamps is designed, that is, three. The three clamps are evenly distributed in the sheath, and when the three clamps 12 are completely gathered together, the edges of the clamping protrusions 121 just contact each other in sequence. Based on this design, the specific design of the clamp can achieve maximum capture of necrotic tissue.

[0052] Specifically, in Figure 4 Based on the specific design in the above, the cross section of the clamp 12 is an equilateral triangle structure.

[0053] Specifically, when the edges of the clamping protrusions 121 contact each other in sequence, the cross-section of the three clamping protrusions 121 presents a trilobal structure.

[0054] Please refer to Figure 5 A specific embodiment of the clamp in a non-invasive surgical forceps is shown.

[0055] The clamping protrusion 121 includes: an arcuate inner protrusion 1211 fixedly connected to the clamp 12 and a gelatinous outer protrusion 1212 covering the arcuate inner protrusion 1211 .

[0056] The arched inward convex design can provide sufficient rigidity for the clamping protrusion and can exert a certain amount of assistance when clamping tissue.

[0057] In addition, the colloid outer convexity covering the outer side of the arched inner convexity can effectively protect the arched inner convexity and avoid damage to normal tissues.

[0058] Please refer to Figure 6 A specific embodiment of the clamp in a non-invasive surgical forceps is shown.

[0059] A plurality of tooth-shaped inner protrusions 1213 distributed along the length direction of the arcuate inner protrusion 1211 are provided on a side relatively away from the clamp 12 .

[0060] The tooth-shaped inner convex point design can be slightly exposed through the colloid convexity, which can play a certain invisible cutting role in the process of clamping necrotic tissue. In addition, this design will not cause damage to the tissue.

[0061] Please refer to Figure 7 A specific embodiment of the clamp in a non-invasive surgical forceps is shown.

[0062] The arcuate inner convexity 1211 comprises: two arcuate inner convex plates 1211a distributed in parallel, a semicircular inner bias plate 1211b is arranged between the arcuate inner convex plates 1211a, the inner bias plate is flipably connected to the side wall of the clamp, and the top edge of the inner bias plate 1211b is connected to the arcuate inner convex plate on its corresponding side through a damping member.

[0063] After being covered by the gelatinous outer bulge, the arched inner convex plate provides sufficient supporting force for the gelatinous outer bulge during the process of clamping tissue.

[0064] Under the design of the damping member, when the necrotic tissue is not clamped, the inner deflection plate is located in the middle of the two arcuate inner convex plates. When clamping the tissue, it can be flipped within a certain angle in the gelatinous outer convex, which can help the clamping process of the necrotic tissue to a certain extent. When the clamping is completed, under the action of the damping member, the inner deflection plate can be located in the middle of the two arcuate inner convex plates.

[0065] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A non-invasive surgical forceps, characterized in that: include: A clamp head (10), an operating cable (20) for controlling the clamp head (10), and a working sheath (30) having a hollow structure and for covering the operating cable (20); It also comprises: an operating handle (50) for controlling the operating cable (20) to slide back and forth along the working sheath (30); the clamp head (10) comprises: a hollow sheath (11) connected to an end of the working sheath (30) relatively far from the operating handle (50), and at least two clamps (12) arranged in the sheath (11) and rotatably connected to the inner wall of the sheath (11); The end of the operating cable (20) is capable of entering between the clamps (12), and the end is provided with an actuating component (40) capable of sliding back and forth along the working sheath (30) along with the operating cable (20) to drive the free end of the clamps (12) to switch between the two states of gathering or separation; The number of the clamps (12) is three and they are evenly distributed in a circular array inside the working sheath (30); The free ends of the clamps (12) are in a curved structure and clamping protrusions (121) are provided on the side walls of the clamps (12) that are close to each other; When the free ends of the clamp (12) are completely gathered together, the edges of the clamping protrusions (121) contact each other in sequence; The clamping protrusion (121) comprises: an arcuate inner protrusion (1211) fixedly connected to the clamp (12) and a gelatinous outer protrusion (1212) covering the arcuate inner protrusion (1211); The arcuate inner convexity (1211) comprises: two arcuate inner convex plates (1211a) distributed in parallel, a semicircular inner bias plate (1211b) is arranged between the arcuate inner convex plates (1211a), the inner bias plate is flipably connected to the clamp side wall, and the top edge of the inner bias plate (1211b) is connected to the arcuate inner convex plate on the corresponding side via a damping member.

2. A non-invasive surgical forceps according to claim 1, characterized in that: The actuating assembly (40) comprises: an actuating block (41) provided on one end of the operating cable (20) entering the clamp (12), and a flexible connecting member (42) used to connect the actuating block (41) to all the clamps (12) respectively.

3. The non-invasive surgical forceps according to claim 1, characterized in that: The actuating assembly (40) comprises: actuating plates (43) corresponding in number to the clamps (12); an end of the actuating plate (43) relatively close to the operating cable (20) is hinged thereto, and an end of the actuating plate (43) relatively close to the clamp (12) is rotatably connected to the clamp (12).

4. The non-invasive surgical forceps according to claim 1, characterized in that: A plurality of tooth-shaped inner protrusions (1213) distributed along the length direction of the arched inner protrusion (1211) are provided on a side relatively far away from the clamp (12).

5. The non-invasive surgical forceps according to claim 4, characterized in that: The operating handle (50) comprises: a fixed handle (51) connected to the working sheath (30) and a movable handle (52) connected to the operating cable (20) and capable of sliding relative to the fixed handle (51).

6. A non-invasive surgical forceps according to any one of claims 1 to 3, characterized in that: The working sheath (30) is an elastic steel wire telescopic tube.

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