CN219289667U

CN219289667U - Plasma planing knife

Info

Publication number: CN219289667U
Application number: CN202222135150.6U
Authority: CN
Inventors: 何成东; 岳欣; 梁琪
Original assignee: Jiangsu Bonss Medical Technology Co ltd
Current assignee: Bangshi Medical Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-07-04
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses a plasma planing knife, comprising: the planing tool comprises a planing tool body, a plasma cathode tube and a driving handle, wherein the planing tool body comprises an outer cutter and an inner cutter which is positioned in the outer cutter and rotates along the outer cutter, the end part of the outer cutter is embedded into the driving handle, the end part of the inner cutter stretches into the driving handle and is connected with the output end of a driving piece in a matched manner, the plasma cathode tube is arranged on the outer wall of the outer cutter, a cable mounting piece is arranged at the end part of the plasma cathode tube, which is close to the driving handle, and the cable mounting piece is respectively electrically connected with the plasma cathode tube and the outer cutter. The utility model integrates planing and ablation hemostasis, has the requirements of the planing rapid cutting function and the plasma ablation hemostasis refining operation function, and solves the problem of frequent instrument replacement in operation.

Description

Plasma planing knife

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a plasma planing knife.

Background

This description of the background art pertains to the relevant art in connection with this application, which is provided solely for the purposes of illustration and to facilitate the understanding of the inventive concepts of this application, and is not to be construed as an admission that the applicant is explicitly aware or presumes that the applicant is prior art in the filing date of this application as the first time it has been filed.

The planing tool is actually composed of two sleeves stacked together, both sleeves are provided with windows, the cutting action is performed on the windows of the tip through a fixed outer cutter tube and a rotary inner core, tissues are sucked into a knife edge, and scraps are sucked out through a suction device so as to achieve the cutting purpose.

In the process of cutting surgical tissues, the conventional planing knife often needs to assist in cutting and ablating redundant tissues and stopping bleeding of the tissues, and the back and forth replacement of the instrument generally influences the smooth operation. The prior art improves the surgical instrument for the operation type, such as an electric coagulation rotary shaver disclosed in publication No. CN205459011U, and solves the problem of hemostasis of tissues in the planing process by integrating a monopolar or a bipolar electric coagulation with the shaver, however, the conventional electric coagulation in the form of the monopolar or the bipolar electric knife often has larger thermal damage to the tissues, and the hemostasis process often accompanies ablation of pathological tissues and ablation of local detailed tissues, and if the electric knife is relied on to ablate the pathological tissues, the hemostasis effect is poor.

Disclosure of Invention

The utility model aims to provide a plasma planing knife, which aims to solve the problems that planing and hemostatic instruments are frequently replaced in the existing tissue cutting operation, and the tissue is greatly thermally damaged by adopting electrocoagulation to stop bleeding.

The technical scheme for solving the technical problems is as follows:

a plasma planer tool comprising: the planing tool comprises a planing tool body, a plasma cathode tube and a driving handle, wherein the planing tool body comprises an outer cutter and an inner cutter which is positioned in the outer cutter and rotates along the outer cutter, the end part of the outer cutter is embedded into the driving handle, the end part of the inner cutter stretches into the driving handle and is connected with the output end of a driving piece in a matched manner, the plasma cathode tube is arranged on the outer wall of the outer cutter, a cable mounting piece is arranged at the end part of the plasma cathode tube, which is close to the driving handle, and the cable mounting piece is respectively electrically connected with the plasma cathode tube and the outer cutter.

According to the utility model, the cable mounting piece is connected with the external radio-frequency plasma host machine, the cable mounting piece is electrically connected with the plasma cathode tube and the external knife, when the cutting is needed, the internal knife is driven to rotate by the driving piece for tissue cutting, and when the fine operation of cutting and ablating local tissues and stopping bleeding is needed, the cable mounting piece is controlled by the external radio-frequency plasma host machine, so that plasma is stably generated between the external knife and the plasma cathode tube in a physiological saline environment, and corresponding operations such as ablation and stopping bleeding are performed, thereby solving the problem that the instrument is frequently replaced in operation.

Further, an attraction channel is axially arranged in the driving handle, one end of the attraction channel is connected with a negative pressure attraction pipe, and the other end of the attraction channel is communicated with the inner knife through a driven piece.

The suction channel is communicated with the inner knife through the driven piece, and the negative pressure suction pipe is connected with the external negative pressure suction device, so that the tissue cut by the inner knife is effectively sucked and discharged, the operation field is ensured to be clear in a plasma operation mode, and the inner knife is prevented from being blocked.

Further, the inner knife comprises an inner knife head, an inner knife tube and an inner knife handle which are sequentially connected, an inner knife edge communicated with the inner knife tube is arranged on the inner knife head, the end part of the inner knife tube, far away from the inner knife head, penetrates through the inner knife handle and is communicated with a driven piece, and the driven piece is connected with the output end of the driving piece in a matched mode.

Further, the blade part of the inner cutter head is in a zigzag structure.

According to the utility model, the driven piece is driven to rotate by the driving piece, so that the inner knife is driven to rotate, the tissue is cut by the serrated cutting edge of the inner knife head, and the resected tissue is effectively discharged through the inner knife edge, the inner knife tube, the driven piece, the suction channel and the negative pressure suction tube in sequence.

Further, the driven piece comprises a connecting sleeve and a driven gear arranged on the outer wall of the connecting sleeve, a shaft hole is formed in the connecting sleeve, an inner cutter tube penetrates through the inner cutter handle and is communicated with the shaft hole, one end of the connecting sleeve is connected with the inner cutter handle in a clamping mode, and the other end of the connecting sleeve is connected with the suction channel in a matched mode.

According to the utility model, the shaft hole is formed in the connecting sleeve, so that the inner cutter tube and the suction channel are communicated with each other, and the driven gear is driven to rotate by the driving piece, so that the rotation of the inner cutter is realized.

Further, the outer knife comprises an outer knife head, an outer knife tube and an outer knife handle which are sequentially connected, the inner knife head is matched with the outer knife head, the inner knife handle is adjacent to the outer knife handle, an outer knife edge communicated with the outer knife tube is arranged on the outer knife head, and the outer knife handle is embedded into the driving handle.

The inner cutter head is matched with the outer cutter head, and when the inner cutter is integrally driven to rotate under the action of the driving piece and the driven piece, the inner cutter head rotates relative to the outer cutter head, so that tissues are cut.

Further, the outer wall of the plasma cathode tube, the outer wall of the outer cutter head, the outer wall of the outer cutter tube, the outer wall of the inner cutter head and the outer wall of the inner cutter tube are all coated with insulating layers.

Further, the edge part of the outer cutter head is of an elliptical annular platform structure, and the elliptical annular platform of the outer cutter head and the position of the plasma cathode tube close to the outer cutter head are exposed.

The insulating layer is arranged to ensure the insulativity among the inner knife, the outer knife and the plasma cathode tube, the exposed elliptical annular platform metal at the edge part of the outer knife head is used as a centralized excitation area of plasma, the plasma cathode tube is used as a loop pole, and corresponding ablation and hemostasis operations can be carried out under physiological saline water.

Further, the cable mounting piece comprises a mounting sleeve, and a negative electrode cable and a positive electrode cable which are respectively arranged on the mounting sleeve, wherein the end part of the plasma negative electrode tube is embedded into the mounting sleeve and connected with the negative electrode cable, and the end part of the outer cutter tube, which is far away from the outer cutter head, penetrates through the mounting sleeve and is connected with the positive electrode cable.

According to the utility model, the positive cable and the negative cable are arranged through the mounting sleeve, the positive cable and the negative cable are connected with an external radio frequency plasma host, and the plasma functions are switched by operating the external radio frequency plasma host, so that the external knife and the plasma negative tube are acted to realize operations such as plasma ablation, hemostasis and the like.

Further, the cable interface is offered to the end that the cable installed part was far away from to the actuating lever, and the cable interface grafting has the cable to connect, and the actuating lever is including setting up in the actuating lever and with the driving motor of cable interface electricity connection to and the driving gear that is connected with driving motor's output cooperation, driving gear meshes with driven gear.

The utility model is connected with a power supply through a cable connector on the cable interface for controlling the rotation of the driving motor, and drives the driven gear to rotate through the driving gear, thereby realizing the rotation of the inner knife.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model designs the planing, ablation and hemostasis integrated, has the requirements of the planing rapid cutting function and the plasma ablation and hemostasis refining operation function, and solves the problem of frequent instrument replacement in operation;

2. the planing and ablation hemostasis output modes can complement each other, the suction channel is communicated with the inner knife through the driven piece, and the negative pressure suction pipe is connected with the external negative pressure suction device, so that tissues cut by the inner knife are effectively sucked and discharged, the operation field is ensured to be clear in a plasma operation mode, the inner knife is prevented from being blocked, the significance is achieved, and the operation efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a plasma planer;

FIG. 2 is a schematic view of the structure of the outer and inner blades;

FIG. 3 is a schematic cross-sectional view of a plasma planer;

FIG. 4 is a schematic view of the portion A of FIG. 1;

fig. 5 is a schematic diagram of the B portion structure of fig. 3.

In the figure: 1-planing tool body, 11-outer tool, 111-outer tool bit, 112-outer tool tube, 113-outer tool shank, 114-outer tool edge, 12-inner tool, 121-inner tool bit, 122-inner tool tube, 123-inner tool shank, 124-inner tool edge, 2-plasma cathode tube, 3-driving handle, 31-driving piece, 311-driving motor, 312-driving gear, 32-suction channel, 33-negative pressure suction tube, 34-cable joint, 4-cable mounting piece, 41-mounting sleeve, 42-cathode cable, 43-anode cable, 5-driven piece, 51-connecting sleeve, 52-driven gear, 53-shaft hole.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1 to 3, a plasma planer tool includes: the planing tool comprises a planing tool body 1, a plasma cathode tube 2 and a driving handle 3, wherein the planing tool body 1 comprises an outer cutter 11 and an inner cutter 12 which is positioned in the outer cutter 11 and rotates along the outer cutter 11, the end part of the outer cutter 11 is embedded into the driving handle 3, the end part of the inner cutter 12 stretches into the driving handle 3 and is matched and connected with the output end of a driving piece 31, the plasma cathode tube 2 is arranged on the outer wall of the outer cutter 11, a cable mounting piece 4 is arranged at the end part, close to the driving handle 3, of the plasma cathode tube 2, and the cable mounting piece 4 is respectively electrically connected with the plasma cathode tube 2 and the outer cutter 11. The cable mounting piece 4 is used for being connected with an external radio frequency plasma host machine, and plasma functions are switched by operating the external radio frequency plasma host machine, so that plasma ablation, hemostasis and other operations are realized by acting on the outer knife 11 and the plasma cathode tube 2.

Wherein, the end of the driving handle 3 far away from the cable mounting piece 4 is provided with a cable interface, the cable interface is spliced with a cable connector 34, the driving piece 31 is arranged in the driving handle 3, the driving piece 31 comprises a driving motor 311 which is arranged in the driving handle 3 and is electrically connected with the cable interface, and a driving gear 312 which is matched and connected with the output end of the driving motor 311, and the driving gear 312 is meshed with a driven gear 52 on the driven piece 5. The power supply is connected through the cable connector 34, and when the driving motor 331 is started, the driving gear 312 is driven to rotate, and then the driven gear 52 is driven to rotate, so that the rotation of the inner cutter 12 is finally realized.

Referring to fig. 3, in order to ensure the clarity of the surgical field in the plasma surgical mode and prevent the inner knife 12 from being blocked, an aspiration channel 32 is axially provided in the driving handle 3, one end of the aspiration channel 32 is connected to a negative pressure aspiration tube 33, and the other end of the aspiration channel 32 is communicated with the inner knife 12 through the follower 5. The suction channel 32 communicates with the inner blade 12 through the follower 5, and the negative pressure suction tube 33 is used for connecting an external negative pressure suction device, so that the tissue cut by the inner blade 12 is effectively sucked and discharged.

Referring to fig. 2, 4 and 5, the inner cutter 12 includes an inner cutter head 121, an inner cutter tube 122 and an inner cutter handle 123 which are sequentially connected, an inner cutter edge 124 which is communicated with the inner cutter tube 122 is formed on the inner cutter head 121, and the end part of the inner cutter tube 122, which is far away from the inner cutter head 121, penetrates through the inner cutter handle 123 and is communicated with the driven member 5, and the driven member 5 is connected with the output end of the driving member 31 in a matched manner. The inner knife edge 124 is communicated with the inner knife tube 122, the knife edge part of the inner knife head 121 is of a zigzag structure, so that the tissue can be cut conveniently, the inner knife edge 124 can be used as an attraction port, and the cut tissue sequentially passes through the inner knife edge 124, the inner knife tube 122, the shaft hole 53 of the connecting sleeve 51 on the driven piece 5 and the attraction channel 32 to the negative pressure attraction tube 33 under the action of an external negative pressure attraction device, so that the cut tissue is effectively discharged.

The outer cutter 11 comprises an outer cutter head 111, an outer cutter tube 112 and an outer cutter handle 113 which are sequentially connected, an inner cutter head 121 is matched with the outer cutter head 111, the inner cutter handle 123 is adjacent to the outer cutter handle 113, an outer cutter edge 114 communicated with the outer cutter tube 112 is formed in the outer cutter head 111, and the outer cutter handle 113 is embedded into the driving handle 3. The external diameter of interior tool bit 121 matches with the internal diameter of outer tool bit 111, and the external diameter of interior sword pipe 122 matches with the internal diameter of outer sword pipe 112, and the length of interior sword pipe 122 is greater than the length of outer sword pipe 112, and the tip that interior sword pipe 122 kept away from interior tool bit 121 runs through outer handle of a knife 113 and is connected with interior handle of a knife 123 for interior sword 12 can insert outer sword 11 from outer handle of a knife 113 and the structure of combination formation plane sword body 1, thereby driving piece 31 can drive interior sword 12 smoothly and rotate.

The follower 5 includes a connecting sleeve 51, a follower gear 52 disposed on an outer wall of the connecting sleeve 51, a shaft hole 53 is formed in the connecting sleeve 51, an inner cutter tube 122 penetrates through an inner cutter handle 123 and is communicated with the shaft hole 53, one end of the connecting sleeve 51 is clamped with the inner cutter handle 123, and the other end of the connecting sleeve 51 is connected with the suction channel 32 in a matched manner. The end of the inner cutter tube 122 far away from the inner cutter head 121 also penetrates through the inner cutter handle 123 and is embedded into the connecting sleeve 51, so that the inner cutter tube 122 is communicated with the shaft hole 53; the end part of the inner knife handle 123, which is close to the connecting sleeve 51, is provided with a clamping groove, and the connecting sleeve 51 is provided with a clamping block matched with the clamping groove, so that clamping connection is realized; the outer diameter of the end of the connecting sleeve 51 far from the inner knife handle 123 is matched with the inner diameter of the suction channel 32, so that the driving gear 312 can smoothly drive the driven gear 52, the connecting sleeve 51 and the inner knife 12 to rotate.

In order to ensure insulation between the inner cutter 12, the outer cutter 11, and the plasma anode tube 2, the outer wall of the outer cutter head 111, the outer wall of the outer cutter tube 112, the outer wall of the inner cutter head 121, and the outer wall of the inner cutter tube 122 are coated with an insulating layer.

The edge part of the outer cutter head 111 is in an elliptical annular platform structure, and the metal at the elliptical annular platform of the outer cutter head 111 and the position of the plasma cathode tube 2 close to the outer cutter head 111 are exposed. The exposed elliptical annular platform metal at the edge part of the outer cutter head 111 is used as a centralized excitation area of plasma, the plasma cathode tube 2 is used as a loop pole, and stable plasma can be generated under the physiological saline water.

Referring to fig. 3, the cable mount 4 includes a mounting sleeve 41, and a negative electrode cable 42 and a positive electrode cable 43 respectively provided on the mounting sleeve 41, and an end of the plasma negative electrode tube 2 is embedded in the mounting sleeve 41 and connected with the negative electrode cable 42, and an end of the outer cutter tube 112 remote from the outer cutter head 111 passes through the mounting sleeve 41 and is connected with the positive electrode cable 43. The positive cable 43 and the negative cable 42 are electrically connected with an external radio frequency plasma host, and the external radio frequency plasma host is operated to switch the plasma function, so that the external cutter head 111 and the plasma negative tube 2 perform corresponding ablation and hemostasis operations in a physiological saline environment.

In summary, one end of the positive cable 43 on the cable mounting member 4 is connected to the outer cutter tube 112, one end of the negative cable 42 is connected to the plasma negative tube 2, and the other ends of the positive cable 43 and the negative cable 42 are connected to an external rf plasma host. When cutting is needed, the driving motor 311 is started, the driving motor 311 drives the driving gear 312 to rotate so as to drive the driven gear 52 to rotate, the connecting sleeve 51 and the inner cutter 12 are driven to integrally rotate through the driven gear 52, the tissue is cut through the serrated edge part of the inner cutter head 121, the external negative pressure aspirator is started, and the cut tissue can sequentially pass through the inner cutter edge 124, the inner cutter tube 122, the shaft hole 53 on the connecting sleeve 51, the aspiration channel 32 and the negative pressure aspiration tube 33 and reach the external negative pressure aspirator, so that the cut tissue is effectively aspirated and discharged, and meanwhile, the clarity of an operation field in a plasma operation mode is ensured; when the local tissue needs to be ablated and hemostasis, the plasma function of the radio frequency plasma host is switched, and the plasma function is acted on the outer cutter tube 122 and the plasma cathode tube 2 through the positive cable 43 and the negative cable 42, the exposed elliptical annular platform metal at the cutting edge part of the outer cutter head 111 is used as a centralized excitation area of plasma, the plasma cathode tube 2 is used as a loop pole, and corresponding ablation and hemostasis operation can be carried out under physiological saline water.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A plasma planer tool, comprising: the planing tool comprises a planing tool body (1), a plasma cathode tube (2) and a driving handle (3), wherein the planing tool body (1) comprises an outer cutter (11) and an inner cutter (12) which is positioned in the outer cutter (11) and is rotated along the outer cutter (11), the end part of the outer cutter (11) is embedded into the driving handle (3), the end part of the inner cutter (12) extends into the driving handle (3) and is matched and connected with the output end of a driving piece (31), the plasma cathode tube (2) is arranged on the outer wall of the outer cutter (11), the end part of the plasma cathode tube (2) close to the driving handle (3) is provided with a cable mounting piece (4), and the cable mounting piece (4) is respectively connected with the plasma cathode tube (2) and the outer cutter (11).

2. The plasma planing tool according to claim 1, wherein the driving handle (3) is further axially provided with a suction channel (32), one end of the suction channel (32) is connected with a negative pressure suction tube (33), and the other end of the suction channel (32) is communicated with the inner cutter (12) through a driven piece (5).

3. The plasma planing tool according to claim 2, wherein the inner tool (12) comprises an inner tool bit (121), an inner tool pipe (122) and an inner tool shank (123) which are sequentially connected, an inner tool edge (124) communicated with the inner tool pipe (122) is formed on the inner tool bit (121), the end part, far away from the inner tool bit (121), of the inner tool pipe (122) penetrates through the inner tool shank (123) and is communicated with the driven piece (5), and the driven piece (5) is connected with the output end of the driving piece (31) in a matched mode.

4. A plasma sharpener according to claim 3, characterized in that the edge portion of the inner cutter head (121) is of a saw-tooth structure.

5. The plasma planing tool according to claim 3, wherein the driven member (5) comprises a connecting sleeve (51) and a driven gear (52) arranged on the outer wall of the connecting sleeve (51), a shaft hole (53) is formed in the connecting sleeve (51), the inner cutter tube (122) penetrates through the inner cutter handle (123) and is communicated with the shaft hole (53), one end of the connecting sleeve (51) is clamped with the inner cutter handle (123), and the other end of the connecting sleeve (51) is connected with the suction channel (32) in a matched mode.

6. The plasma planing tool according to claim 5, wherein the outer tool (11) comprises an outer tool bit (111), an outer tool pipe (112) and an outer tool shank (113) which are sequentially connected, the inner tool bit (121) is matched with the outer tool bit (111), the inner tool shank (123) is adjacent to the outer tool shank (113), an outer tool edge (114) communicated with the outer tool pipe (112) is formed on the outer tool bit (111), and the outer tool shank (113) is embedded into the driving handle (3).

7. The plasma planing tool according to claim 6, wherein the outer wall of the plasma cathode tube (2), the outer wall of the outer cutter head (111), the outer wall of the outer cutter tube (112), the outer wall of the inner cutter head (121) and the outer wall of the inner cutter tube (122) are coated with an insulating layer.

8. The plasma planing tool according to claim 6, wherein the cutting edge of the outer tool bit (111) is in an elliptical annular platform structure, and the metal is exposed at the elliptical annular platform of the outer tool bit (111) and at the position of the plasma cathode tube (2) close to the outer tool bit (111).

9. The plasma sharpener according to claim 6, wherein the cable mount (4) comprises a mounting sleeve (41), and a negative cable (42) and a positive cable (43) respectively disposed on the mounting sleeve (41), the end of the plasma negative tube (2) is embedded into the mounting sleeve (41) and connected with the negative cable (42), and the end of the outer cutter tube (112) remote from the outer cutter head (111) passes through the mounting sleeve (41) and is connected with the positive cable (43).

10. The plasma sharpener according to any one of claims 5 to 9, wherein the end of the drive handle (3) remote from the cable mount (4) is provided with a cable interface, the cable interface is plugged with a cable connector (34), the drive member (31) comprises a drive motor (311) arranged in the drive handle (3) and electrically connected with the cable interface, and a drive gear (312) cooperatively connected with the output end of the drive motor (311), and the drive gear (312) is meshed with the driven gear (52).