Vascular forceps

Abstract

The application discloses a blood vessel forceps, which comprises a first forceps handle and a second forceps handle; the first forceps handle and the second forceps handle are hinged through a rotating shaft; the distal end of the first forceps handle forms a first forceps mouth, the distal end of the second forceps handle forms a second forceps mouth, and the opposite surfaces of the first forceps mouth and the second forceps mouth can be mutually attached; the blood vessel forceps further comprises an electric knife assembly, which is arranged on the first forceps handle and can be telescopically extended along the axis direction of the first forceps handle, and can be extended through the plane where the distal end surface of the first forceps mouth is located; the blood vessel forceps can be directly used to cut tissues and then directly used to crush the tissues, a user holds one instrument, so that the operation time is shortened, the operation quality is improved, and the pain of the patient is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a medical instrument, in particular to a blood vessel forceps. BACKGROUND

[0002] In the liver surgery, the liver must be incised first, and the liver parenchyma fills around the various blood vessels and bile ducts which are crisscrossed in the liver, and there is no natural space, that is, the complex ducts in the liver are buried in the liver parenchyma, and it is difficult to clearly identify the existing position and path, and the liver is slightly incised, and bleeding is caused due to the rupture of many blood vessels. In order to reduce bleeding during the operation, the hepatic portal is blocked first, and then the liver is incised, and then the liver parenchyma is crushed by using the blood vessel forceps, and after crushing, it needs to be sucked and removed, so as to accurately expose the large and small ducts. However, in the whole process, the operator needs to constantly switch surgical instruments, and the operator needs to constantly change a plurality of instruments under the close cooperation of the assistant, thereby prolonging the operation time and causing pain to the patient. SUMMARY

[0003] The purpose of the present application is to provide a blood vessel forceps which can directly cut the tissue by using the blood vessel forceps and then directly crush the tissue by using the blood vessel forceps, so that the user holds one instrument, thereby shortening the operation time, improving the operation quality, and reducing the pain of the patient.

[0004] The technical problem solved by the present application adopts the following technical scheme: a blood vessel forceps comprises a first handle and a second handle; the first handle and the second handle are hinged through a rotating shaft; a distal end of the first handle forms a first forceps mouth, a distal end of the second handle forms a second forceps mouth, and opposite surfaces of the first forceps mouth and the second forceps mouth can be mutually attached; an electrotome assembly is arranged on the first handle, and the electrotome assembly can be telescoped along the axis direction of the first handle, can be extended and pass through the plane where the distal end surface of the first forceps mouth is located.

[0005] Preferably, the first handle further comprises a first channel, a first opening and a first interface, the first opening is arranged on the end surface of the distal end of the first forceps mouth, the first interface is arranged on the end surface of the proximal end of the first handle, the first channel is in communication with the first opening and the first interface, the electrotome assembly comprises an electrotome and a pushing member, the pushing member is slidably arranged in the first channel, and the electrotome is arranged on the pushing member and can be extended and pass through the plane where the distal end surface of the first forceps mouth is located along with the sliding of the pushing member.

[0006] Preferably, the pushing member comprises an electrically conductive tube, an insulating tube and an operating member, the distal end of the electrically conductive tube is in communication with the electrotome, the insulating tube is wrapped around the periphery of the electrically conductive tube, the operating member is arranged on the insulating tube, the circumferential surface of the first handle is provided with a second opening, the second opening has a length in the axial direction, and the second opening is in communication with the first channel; one end of the operating member penetrates through the second opening and is fixed to the insulating tube, and the other end of the operating member penetrates out of the second opening.

[0007] Preferably, the operating member is in the shape of "T", the lower end of the vertical part of the "T" shape is fixed to the insulating tube, and the horizontal part of the "T" shape straddles the second opening.

[0008] Preferably, the first handle further comprises a suction port, a second channel and a second interface, the suction port is arranged on the end surface of the distal end of the first mouth, the second interface is arranged on the end surface of the proximal end of the first handle, and the second channel is in communication with the suction port and the second interface.

[0009] Preferably, the closing surface of the first mouth is provided with a plurality of first protrusions, the closing surface of the second mouth is provided with a plurality of second protrusions, and the first protrusions and the plurality of second protrusions are engaged with each other.

[0010] Preferably, the plurality of first protrusions occupy 1 / 4 to 1 / 2 of the area of the closing surface of the first mouth.

[0011] Preferably, the first protrusions and the second protrusions are in the shape of a hemisphere or a semi-ellipsoid or other structures with curved surfaces.

[0012] The present application has the following beneficial effects: due to the arrangement of the electrotome assembly, the electrotome assembly can be stretched in the axial direction of the first handle, when it is needed to cut the tissue by using the electrotome in the electrotome assembly, the electrotome assembly is stretched out and penetrates through the plane where the distal end surface of the first mouth is located, and the electrotome which is stretched out together cuts the tissue; after the cutting is completed, the electrotome is retracted, and the first mouth and the second mouth of the hemostat are used to crush the tissue which needs to be crushed; in this way, the user holds one instrument, thereby shortening the operation time, improving the operation quality and reducing the pain of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structure schematic view of a cross section of the hemostat;

[0014] Figure 2 It is a structure schematic view of the electrotome assembly;

[0015] Figure 3 It is a side cross-sectional view of the electrotome assembly;

[0016] Figure 4 Fig. 2 is a schematic view of a partial enlarged structure of the first forceps mouth;

[0017] Figure 5 Fig. 3 is a schematic view of a structure of the first forceps mouth.

[0018] The figures are marked as follows: 1 - first forceps handle; 2 - second forceps handle; 3 - first forceps mouth; 4 - second forceps mouth; 5 - electrotome assembly; 6 - electrotome; 7 - first channel; 8 - first opening; 9 - first interface; 10 - push member; 11 - conductive tube; 12 - insulating tube; 13 - operating member; 14 - second opening; 15 - suction port; 16 - second channel; 17 - second interface; 18 - first protrusion. DETAILED DESCRIPTION

[0019] The technical solutions of the present application are further described below in conjunction with the embodiments and the accompanying drawings.

[0020] The present embodiment provides a blood vessel forceps, which comprises a first forceps handle 1 and a second forceps handle 2; the first forceps handle 1 and the second forceps handle 2 are hinged through a rotating shaft; a distal end of the first forceps handle 1 forms a first forceps mouth 3, a distal end of the second forceps handle 2 forms a second forceps mouth 4, and opposite surfaces of the first forceps mouth 3 and the second forceps mouth 4 can be mutually adhered; the blood vessel forceps further comprises an electrotome assembly 5, which is arranged on the first forceps handle 1 and can be telescopically extended along an axial direction of the first forceps handle 1 and can be extended through a plane in which a distal end surface of the first forceps mouth 3 is located.

[0021] When a surgery starts, the electrotome assembly 5 arranged on the first forceps handle 1 is connected with an external power supply, and the electrotome assembly 5 is adjusted to be extended through the plane in which the distal end surface of the first forceps mouth 3 is located, and an electrotome 6 in the electrotome assembly 5 cuts tissues, and after the cutting is completed, the electrotome assembly 5 is retracted, and the first forceps mouth 3 and the second forceps mouth 4 of the blood vessel forceps are used to crush the tissues to be crushed. In this way, the operator does not need to use multiple instruments, and can hold one instrument, thereby shortening the surgery time, improving the surgery quality, and reducing the pain of the patient.

[0022] Preferably, the first forceps handle 1 further comprises a first channel 7, a first opening 8 and a first interface 9; the first opening 8 is arranged on an end surface of a distal end of the first forceps mouth 3; the first interface 9 is arranged on an end surface of a proximal end of the first forceps handle 1; and the first channel 7 communicates the first opening 8 and the first interface 9.

[0023] The electrotome assembly 5 comprises the electrotome 6 and a push member 10; the push member 10 is slidably arranged in the first channel 7; and the electrotome 6 is arranged on the push member 10 and can be extended through the plane in which the distal end surface of the first forceps mouth 3 is located along with the sliding of the push member 10.

[0024] The first interface 9 is an interface that can be connected to an external power source. The pushing member 10 is slidably arranged in the first channel 7 to drive the electric knife 6 to move in the first channel 7 until the electric knife 6 extends out of the first opening 8. Since the first opening 8 is arranged on the end surface of the distal end of the first jaw 3, the electric knife 6 forms a better operating position, which is convenient for the operator to perform the electric cutting on the tissue. In this way, the position of the electric knife 6 will not be affected by the first jaw 1 or the second jaw 2.

[0025] Preferably, the pushing member 10 comprises a conductive tube 11, an insulating tube 12 and an operating member 13. The distal end of the conductive tube 11 is in communication with the electric knife 6. The insulating tube 12 is wrapped around the periphery of the conductive tube 11. The operating member 13 is arranged on the insulating tube 12.

[0026] The first jaw 1 is provided with a second opening 14 on the circumferential surface, and the second opening 14 has a length in the axial direction. The second opening 14 is in communication with the first channel 7. One end of the operating member 13 passes through the second opening 14 and is fixed to the insulating tube 12. The other end of the operating member 13 passes out of the second opening 14.

[0027] The conductive tube 11 is in communication with the electric knife 6 and is connected to the power supply. The insulating tube 12 is wrapped around the periphery of the conductive tube 11, so that even when the electric knife 6 is conducting electricity, other parts of the vessel forceps will not be affected, thereby playing a good protection role. The operator pushes the other end of the operating member 13, and the one end of the operating member drives the insulating tube 12 to move, thereby driving the electric knife connected to the conductive tube 11 to move along the first channel 7. In this way, the operation is convenient and the structure is simple. Moreover, the operating space of the operating member 13 is limited by the length of the second opening 14 in the axial direction. In this way, the length of the electric knife 6 that needs to be extended or retracted can be determined according to the length of the second opening 14 in the axial direction, so as to facilitate the operator to better operate and judge the length of the electric knife 6.

[0028] Preferably, the upper surface of the first jaw 1 at the second opening 14 is provided with a scale. When the operator operates, the pushing length can be determined according to the scale.

[0029] Preferably, the operating member 13 is a "T" shape. The lower end of the vertical part of the "T" shape is fixed to the insulating tube 12. The horizontal part of the "T" shape spans over the second opening. In this way, the "T" shape design is more convenient for the operator to push.

[0030] The first handle 1 further comprises an absorbing port 15, a second channel 16 and a second interface 17. The absorbing port 15 is arranged on the end face of the distal end of the first jaw 3, the second interface 17 is arranged on the end face of the proximal end of the first handle 1, and the second channel 16 connects the absorbing port 15 and the second interface 17. After the tissue to be crushed is crushed by the vessel forceps, the crushed tissue can be sucked into the second channel 16 through the absorbing port 15 and then discharged through the second interface 17. The second interface 17 is an interface that can be connected to a suction device. When the crushed tissue needs to be sucked away, the second interface 17 is connected to the suction device and the absorbing port 15 connected to the second channel 16 sucks. In this way, the cutting, crushing and sucking are all completed on one instrument. The operator holds one instrument and does not need the close cooperation of an assistant, which is convenient and simple to operate, shortens the operation time and improves the operation quality.

[0031] The first jaw 3 is provided with a plurality of first protrusions 18 on the closure surface, and the second jaw 4 is provided with a plurality of second protrusions on the closure surface. The first protrusions 18 and the second protrusions are engaged with each other. In this way, when the tissue is crushed, the first protrusions 18 and the second protrusions are engaged with each other, and the blood vessels or bile ducts are squeezed into the gap between the protrusions. Compared with the sharp rack structure arranged on the closure surface in the prior art, the structure of the plurality of protrusions can squeeze the blood vessels or bile ducts into the gap between them, so that the blood vessels or bile ducts are not easily damaged when the liver parenchyma is crushed and disconnected, which greatly reduces the risk of bleeding and bile leakage during the operation.

[0032] The plurality of first protrusions 18 occupy 1 / 4 to 1 / 2 of the closure surface of the first jaw. In this way, the operator can more conveniently and multifunctionally use the vessel forceps.

[0033] The first protrusions 18 and the second protrusions are both hemispherical or semi-ellipsoidal or other curved surface structures. The hemispherical or semi-ellipsoidal or other curved surface structure of the protrusions can greatly disperse the clamping force on the blood vessels and bile ducts, and can also avoid the problem that the sharp conical protrusions excessively pull the tissue, resulting in too little contact between the tissue and the vessel forceps and difficulty in grasping the force, which can easily damage the blood vessels or bile ducts. Therefore, the hemispherical or semi-ellipsoidal or other curved surface structure is a better structure.

[0034] The above embodiments are only for description and do not represent the advantages and disadvantages of the embodiments.

[0035] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A vascular forceps, comprising a first handle and a second handle; the first handle and the second handle are hingedly connected via a rotating axis; The distal end of the first pliers handle forms a first pliers mouth, the distal end of the second pliers handle forms a second pliers mouth, and the opposing surfaces of the first pliers mouth and the second pliers mouth can fit together, wherein: The apparatus further comprises an electric knife assembly, wherein the electric knife assembly is arranged on the first clamp handle and can be extended and retracted along the axis direction of the first clamp handle and can extend and pass through the plane where the distal end surface of the first clamp mouth is located; The first clamp handle further comprises a first channel, a first opening and a first interface. The first opening is provided on the first clamp handle. The first interface is provided on the end surface of the distal end of the mouth, and the first channel is connected to the first opening and the first interface; The electric knife assembly includes an electric knife and a pushing member, and the pushing member is slidably arranged in the first channel. The electric knife is arranged on the pushing member and can extend and pass through the plane where the distal end surface of the first jaw is located as the pushing member slides; The pushing member includes a conductive tube, an insulating tube, and an operating member. A second opening is provided on the circumferential surface of the first clamp handle, and the second opening has a certain axial length and is connected to the first channel. One end of the operating member passes through the second opening and is fixed to the insulating tube, and the other end of the operating member passes through the second opening. A plurality of first protrusions are provided on the closing surface of the first jaw, and a plurality of second protrusions are provided on the closing surface of the second jaw, wherein the first protrusions and the plurality of second protrusions engage with each other; When the electric knife in the electric knife assembly needs to be used to cut tissue, the electric knife assembly is extended and passes through the plane where the distal end surface of the first jaw is located, and the extended electric knife cuts the tissue; After the cutting is completed, the electric knife is retracted, and the first and second jaws are used to crush the tissue to be crushed.

2. The vascular clamp according to claim 1, characterized in that The distal end of the conductive tube is communicated with the electric knife, the insulating tube is wrapped around the outer periphery of the conductive tube, and the operating member is arranged on the insulating tube.

3. The vascular clamp according to claim 2, characterized in that: The operating member is T-shaped, the lower end of the vertical portion of the T-shape is fixed to the insulating tube, and the horizontal portion of the T-shape spans the second opening.

4. The vascular clamp according to claim 1, characterized in that The first pliers handle also includes a suction port, a second channel and a second interface. The suction port is arranged on the end surface of the distal end of the first pliers mouth, the second interface is arranged on the end surface of the proximal end of the first pliers handle, and the second channel connects the suction port and the second interface.

5. The vascular clamp according to claim 1, characterized in that: The area occupied by the plurality of first protrusions on the closing surface is 1 / 4 to 1 / 2 of the closing surface of the first pliers mouth.

6. The vascular clamp according to claim 1, characterized in that The first protrusion and the second protrusion are both hemispherical or hemi-ellipsoidal.

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