Anastomat assembly with blood coagulation function

Abstract

The invention discloses an anastomat assembly with a blood coagulation function. The anastomat assembly comprises a cutting knife assembly, a nail box inner core, a nail bin assembly and a nail abutting seat assembly. Wherein the cutting knife assembly comprises a cutting knife head, a cutting knife middle piece and a cutting knife side piece, the cutting knife head is located at the far end of the cutting knife middle piece, and the cutting knife head, the cutting knife middle piece and the cutting knife side piece are fixed together; the anastomat assembly further comprises a thermocouple assembly and an electric connection assembly, and the thermocouple assembly is connected with the electric connection assembly. The thermocouple assembly is arranged on the cutting tool bit and can heat the cutting tool bit; when the cutting knife assembly moves, the electric connection assembly and the thermocouple assembly keep a circuit closed. The endoscopic anastomat assembly is matched with an electric endoscopic anastomat, the blood coagulation function can be achieved on cut tissue capillaries, the surgical bleeding amount is reduced, postoperative recovery is faster, and surgical and postoperative risks are reduced; the number of times for medical staff to clean errhysis at an operation site during an operation can be reduced, the labor of the medical staff is reduced, the operation duration can be shortened, and the working intensity of the medical staff is reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a stapler assembly with a blood coagulation function. Background Art

[0002] In surgical operations, medical laparoscopic cutting staplers have become essential auxiliary medical devices in the process of closing human tissues. The application of laparoscopic cutting staplers has many advantages such as less bleeding during the operation, shorter operation time, reduced manual operation errors, avoided infection, and rapid postoperative functional recovery. Laparoscopic cutting staplers and disposable staple cartridges are applicable to the resection, transection, and anastomosis of tissues in surgical operations such as abdominal, gynecological, pediatric, and thoracic surgeries, and can also be used for the resection and transection of liver parenchyma, liver blood vessels, and bile duct ducts.

[0003] Currently, in existing laparoscopic stapler assemblies, a small amount of bleeding will occur in the tissue capillaries after surgical cutting and suturing, which will affect the doctor's judgment of the tissue state. It is necessary to frequently clean the bleeding at the surgical site, resulting in increased labor of medical staff and affecting the operation duration. How to avoid bleeding in tissue capillaries after tissue suture in the prior art is a technical problem urgently to be solved in this field. Summary of the Invention

[0004] To solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0005] A stapler assembly with a blood coagulation function includes: a cutting knife assembly 1, a staple cartridge inner core 4, a staple cartridge assembly 6, and an anvil assembly 7; wherein, the cutting knife assembly 1 includes: a cutting knife head 11, a cutting knife middle piece 12, and a cutting knife side piece 13. The cutting knife head 11 is located at the distal end of the cutting knife middle piece 12, and the cutting knife head 11 is fixed together with the cutting knife middle piece 12 and the cutting knife side piece 13; the stapler assembly further includes: a heating thermocouple assembly 3 and an electrical connection assembly, and the heating thermocouple assembly is connected to the electrical connection assembly; the heating thermocouple assembly 3 is arranged on the cutting knife head 11, and the heating thermocouple assembly 3 can heat the cutting knife head 11; when the cutting knife assembly 1 moves, the electrical connection assembly and the heating thermocouple assembly 3 maintain an electrical circuit.

[0006] The electrical connection assembly includes: a cutting knife cable assembly 2 and a staple cartridge inner core cable assembly 5; the heating thermocouple assembly 3 is electrically connected to the staple cartridge inner core cable assembly 5 through the cutting knife cable assembly 2; the cutting knife cable assembly 2 is arranged on the cutting knife assembly 1, and the staple cartridge inner core cable assembly 5 is arranged on the staple cartridge inner core 4.

[0007] The cutting knife side piece 13 includes two pieces, which are respectively located on both sides of the cutting knife middle piece 12. The cutting knife head 11 is provided with a first mounting structure 1102 for mounting the heating thermocouple assembly 3, and the heating thermocouple assembly 3 is mounted on the first mounting structure 1102.

[0008] The cutting knife flexible cable assembly 2 includes: a line control switch 21, a first flexible cable 22, a flexible cable connector 23, and an elastic contact slider 24; one end of the line control switch 21 is connected to the heating thermocouple assembly 3, and the other end is connected to one end of the first flexible cable 22. The other end of the first flexible cable 22 is connected to the flexible cable connector 23, and the flexible cable connector 23 is fixedly connected to the elastic contact slider 24.

[0009] On the middle cutting knife piece 12, there is a second installation structure 1201. On each of the two side cutting knife pieces 13, there is a first fixing structure 1301. On both sides of the line control switch 21, there are second fixing structures 2101. The line control switch 21 is arranged at the second installation structure 1201 and is fixed between the two side cutting knife pieces 13 through the cooperation of the first fixing structure 1301 and the second fixing structure 2101.

[0010] On the middle cutting knife piece 12, there is a third installation structure 1203. On the flexible cable connector 23, there is a fourth installation structure 2301. On each of the two side cutting knife pieces 13, there is a third fixing structure 1302. On both sides of the flexible cable connector 23, there are fourth fixing structures 2302. The third installation structure cooperates with the fourth installation structure to install the flexible cable connector on the middle cutting knife piece 12, and the third fixing structure 1301 cooperates with the fourth fixing structure 2101 to fix the flexible cable connector 23 between the two side cutting knife pieces 13.

[0011] The flexible cable connector 23 is provided with a plug, and on the elastic contact slider 24, there is a slot matching the shape of the plug. The plug and the slot cooperate to fix the flexible cable connector 23 and the elastic contact slider 24 to each other.

[0012] On both side surfaces of the plug, there are protruding structures 2303. On the corresponding side surfaces of the slot, there are groove structures 2401. The protruding structures 2303 are arranged in the groove structures 2401 to prevent the flexible cable connector 23 and the elastic contact slider 24 from moving in the vertical direction, and the electrical circuit is connected through the tight cooperation of the protruding structures 2303 and the groove structures 2401.

[0013] The staple cartridge inner core flexible cable assembly 5 includes: elastic contacts 51 connected to the instrument, connecting flexible cables 52, and energizing guide rails 53. There are two elastic contacts 51, two connecting flexible cables 52, and two energizing guide rails 53 respectively. Both ends of the connecting flexible cable 52 are respectively connected to the elastic contact 51 and the energizing guide rail 53; on both sides of the elastic contact slider 24, there are elastic contacts 2402 respectively, and the two elastic contacts 2402 are in close contact with the two energizing guide rails 53 respectively.

[0014] The stapler assembly further includes a temperature control system for controlling the temperature of the cutting knife head. The temperature control system includes: a temperature detection component and a switch control component. The temperature detection component detects the real-time temperature of the cutting knife head 11, and the switch control component controls the on-off of the line control switch 21.

[0015] After adopting such a design, the present invention has at least the following advantages:

[0016] (1) The endoscopic stapler assembly of the present invention can cooperate with the electric endoscopic stapler to coagulate the capillaries of the cut tissue, reduce the amount of bleeding during the operation, recover faster after the operation, and reduce the risks during and after the operation;

[0017] (2) The endoscopic stapler of the present invention can reduce the number of times for medical staff to clean the bleeding at the operation site during the operation, reduce the labor of medical staff, can reduce the operation duration, and reduce the working intensity of medical staff.

[0018] (3) The present invention has a simple structure, good effects, low cost, and is easy to be realized by technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, the following further detailed description of the present invention will be given in combination with the drawings and specific embodiments.

[0020] Figure 1 is a schematic diagram of the overall structure of the stapler assembly of the present invention;

[0021] Figure 2 is an exploded schematic diagram of the cutting knife assembly, heating thermocouple assembly and cutting knife cable assembly of the present invention;

[0022] Figure 3 is of the present invention Figure 2 partial detail enlarged schematic diagram;

[0023] Figure 4 is a connection schematic diagram of the heating thermocouple assembly and the cutting knife cable of the present invention;

[0024] Figure 5 is a schematic diagram of the cable connector and the elastic contact slider structure of the present invention;

[0025] Figure 6 is a cooperation structure schematic diagram of the cutting knife head assembly, the thermocouple and the cutting knife cable of the present invention;

[0026] Figure 7 is of the present invention Figure 6 partial detail enlarged schematic diagram;

[0027] Figure 8 is a schematic diagram of the staple cartridge inner core and the staple cartridge inner core cable structure of the present invention;

[0028] Figure 9 is a schematic diagram of the assembly structure of the staple cartridge inner core and the staple cartridge inner core of the present invention;

[0029] Figure 10Schematic diagram of the initial position of the elastic contact slider of the present invention;

[0030] Figure 11 Schematic diagram of the position of the elastic contact slider of the present invention on the energized guide rail;

[0031] Figure 12 Schematic diagram of the end position of the elastic contact slider of the present invention.

[0032] Reference numerals: 1 cutting tool assembly, 2 cutting tool cable assembly, 3 heating thermocouple assembly, 4 inner core of the staple cartridge, 5 cable assembly of the inner core of the staple cartridge, 6 staple magazine assembly, 7 anvil assembly, 11 cutting tool head, 12 middle piece of the cutting tool, 13 side piece of the cutting tool, 1101 cutting edge, 1102 first mounting structure, 1201 second mounting structure, 1203 third mounting structure, 1301 first fixing structure, 1302 third fixing structure, 21 line control switch, 22 first cable, 23 cable connector, 24 elastic contact slider, 2101 second fixing structure, 2302 fourth fixing structure, raised structure 2303, groove structure 2401, elastic contact 2402, 41 first mounting groove, 42 second mounting groove, 43 third mounting groove, 51 elastic joint, 52 connecting cable, 53 energized guide rail. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] In this article, "upper", "lower", etc. are only used to represent the relative positional relationship between relevant parts, rather than limiting the absolute positions of these relevant parts.

[0035] One end of each of the following components close to the operator is defined as the distal end, and the end far from the operator is defined as the proximal end. The expressions of the proximal end and the distal end are only used to make the description simple and clear, and should not be construed as any limitation to the present invention.

[0036] See the attached Figure 1-12, this application discloses a stapler assembly with blood coagulation function. The assembly includes: a cutting knife assembly 1, a cartridge inner core 4, a staple cartridge assembly 6, and an anvil assembly 7. Among them, the cutting knife assembly 1 includes: a cutting knife head 11, a cutting knife middle piece 12, and a cutting knife side piece 13. The cutting knife head 11 is located at the distal end of the cutting knife middle piece 12, and the cutting knife head 11 is fixed together with the cutting knife middle piece 12 and the cutting knife side piece 13; the stapler assembly further includes: a heating thermocouple assembly 3 and an electrical connection assembly, and the heating thermocouple assembly is connected to the electrical connection assembly; the heating thermocouple assembly 3 is arranged on the cutting knife head 11, and the heating thermocouple assembly 3 can heat the cutting knife head 11; when the cutting knife assembly 1 moves, the electrical connection assembly and the heating thermocouple assembly 3 maintain an electrical circuit. When this stapler assembly is used in cooperation with an electric stapler, the staples are responsible for the main suturing of the surgical site, and the heated cutting knife head part can stop bleeding of the capillaries at the incision site.

[0037] The electrical connection assembly includes: a cutting knife cable assembly 2 and a cartridge inner core cable assembly 5; the heating thermocouple assembly 3 is electrically connected to the cartridge inner core cable assembly 5 through the cutting knife cable assembly 2; the cutting knife cable assembly 2 is arranged on the cutting knife assembly 1, and the cartridge inner core cable assembly 5 is arranged on the cartridge inner core 4.

[0038] Further, the cutting knife side piece 13 includes two pieces, which are respectively located on both sides of the cutting knife middle piece 12, and the cutting knife head 11, the cutting knife middle piece 12, and the cutting knife side piece 13 are welded together by laser. The cutting knife head 11 includes a cutting edge 1101, and the cutting knife head 11 is provided with a first mounting structure 1102 for mounting the heating thermocouple assembly 3. The heating thermocouple assembly 3 is mounted on the first mounting structure 1102. After the stapler assembly is powered on, the heating thermocouple assembly 3 can quickly heat the cutting knife head 11; preferably, the first mounting structure 1102 is a slot, and the heating thermocouple assembly 3 is fixed in the slot.

[0039] The cutting knife flexible cable assembly 2 includes: a line control switch 21, a first flexible cable 22, a flexible cable connector 23, and an elastic contact slider 24. One end of the line control switch 21 is connected to the heating thermocouple assembly 3, and the other end is connected to one end of the first flexible cable 22. The other end of the first flexible cable 22 is connected to the flexible cable connector 23, and the flexible cable connector 23 is fixedly connected to the elastic contact slider 24. A second installation structure 1201 is provided on the middle cutting knife piece 12, and first fixing structures 1301 are respectively provided on two side cutting knife pieces 13. Second fixing structures 2101 are respectively provided on both sides of the line control switch 21. The line control switch 21 is disposed at the second installation structure 1201, and is fixed between the two side cutting knife pieces 13 through the cooperation of the first fixing structure 1301 and the second fixing structure 2101. Preferably, the second installation structure 1201 is an opening, the line control switch 21 is disposed at the opening, the first fixing structure 1301 is an installation hole, and the second fixing structure 2101 is a protrusion. The protrusion is disposed in the installation hole to realize the fixation of the line control switch 21 by the side cutting knife pieces 13.

[0040] A third installation structure 1203 is provided on the middle cutting knife piece 12, a fourth installation structure 2301 is provided on the flexible cable connector 23, third fixing structures 1302 are respectively provided on two side cutting knife pieces 13, and fourth fixing structures 2302 are respectively provided on both sides of the flexible cable connector 23. The third installation structure cooperates with the fourth installation structure to install the flexible cable connector on the middle cutting knife piece 12, and the third fixing structure 1302 cooperates with the fourth fixing structure 2302 to fix the flexible cable connector 23 between the two side cutting knife pieces 13. Preferably, the third installation structure 1203 is a first card slot, the fourth installation structure 2301 is a first card head matching the first card slot, and the first card head is snapped into the first card slot to realize the fixation of the flexible cable connector 23 and the middle cutting knife piece 12; the third fixing structure 1302 is an installation hole, the fourth fixing structure 2302 is a protrusion, and the protrusion is disposed in the installation hole so that the two side cutting knife pieces 13 clamp the line control switch 23 therebetween.

[0041] Furthermore, the flexible cable connector 23 is provided with a plug, and a slot matching the shape of the plug is provided on the elastic contact slider 24. The plug cooperates with the slot to realize the fixation between the flexible cable connector 23 and the elastic contact slider 24. Preferably, protrusion structures 2303 are provided on both side surfaces of the plug, groove structures 2401 are correspondingly provided on both side surfaces of the slot, and the protrusion structures 2303 are disposed in the groove structures 2401 to prevent the flexible cable connector 23 and the elastic contact slider 24 from moving in the vertical direction, and the circuit is completed through the tight cooperation of the protrusion structures 2303 and the groove structures 2401. Elastic contacts 2402 are respectively provided on both sides of the elastic contact slider 24; the first flexible cable 22 is two, and the two elastic contacts 2402 are respectively electrically connected to the two first flexible cables 22, so as to form two electrical paths corresponding to the two poles of the heating thermocouple assembly.

[0042] The inner core 4 of the staple cartridge is used to fix the staple cartridge assembly 6 and the anvil assembly 7. A knife groove guide rail is provided inside the inner core 4 of the staple cartridge, and the cutting knife assembly can move back and forth in the knife groove guide rail; the inner core wire arrangement assembly 5 of the staple cartridge is installed on the inner core 4 of the staple cartridge. The inner core wire arrangement assembly 5 of the staple cartridge includes: an elastic joint 51 connected to the instrument, a connecting wire 52, and a power-on guide rail 53. There are two elastic joints 51, connecting wires 52, and power-on guide rails 53 respectively. The two ends of the connecting wire 52 are respectively connected to the elastic joint 51 and the power-on guide rail 53; the elastic contacts 2402 on both sides of the elastic contact slider 24 are in close contact with the two power-on guide rails 53 respectively. When the stapler assembly is fired, the elastic contact slider 24 slides forward with the cutting knife assembly. When the elastic contacts 242 of the elastic contact slider 24 move back and forth on the power-on guide rail 53, they remain in close contact with the power-on guide rail. Thus, each elastic joint 51, connecting wire 52, power-on guide rail 53, elastic contact 2402, and the first wire 22 are connected to form an electrical path.

[0043] On the outer side of the inner core 4 of the staple cartridge, there are a first installation groove 41, a second installation groove 42, and a third installation groove 43, which are used to install the elastic contact 51, the connecting wire 52, and the power-on guide rail 53 respectively.

[0044] Furthermore, it also includes a temperature control system for controlling the temperature of the cutting knife head. The temperature control system includes: a temperature detection component and a switch control component. The temperature detection component detects the real-time temperature of the cutting knife head 11, and the switch control component controls the on-off of the line control switch 21; when the temperature detection component detects that the temperature of the knife head reaches the set maximum temperature, the switch control component controls the line control switch 21 to close, thereby disconnecting the circuit, and the cutting knife head cools down. When the temperature drops to the preset minimum temperature, the switch control component controls the line control switch 21 to turn on, thereby closing the circuit, and the cutting knife head can quickly heat up to the preset temperature, so as to keep the temperature of the cutting knife head at a temperature suitable for tissue denaturation. Furthermore, the temperature control system is also provided with a power control button, and the power control button is divided into three gears: low gear, medium gear, and high gear, corresponding to different temperatures respectively. The doctor can adjust the power according to the thickness of the suture tissue. The thicker the tissue, the higher the selected power, and the faster the cutting knife part of the component heats up and the higher the temperature.

[0045] The specific usage steps of the stapler assembly of the present application are as follows: The stapler assembly is used when installed on an electric stapler. When the stapler assembly is closed, the instrument will energize the stapler assembly through the electrical connection assembly. After being energized, the thermocouple heating assembly 3 on the cutting knife head 11 will quickly heat up to preheat the cutting knife head 11 and maintain a relatively constant temperature. When the instrument firing confirmation button is pressed, the thermocouple heating assembly will heat the cutting knife head 11 again, and can quickly heat up to the temperature that can denature the tissue. When the temperature reaches the temperature that can quickly denature the tissue, the temperature control system can detect the real-time temperature of the knife head and control the on-off of the circuit. When the temperature of the cutting knife head reaches the set maximum temperature, the circuit is disconnected, and the cutting knife head cools down. When the temperature drops to the preset minimum temperature, the circuit is closed, and the cutting knife head can quickly heat up to the preset temperature. When the cutting knife head is heated to the temperature that can denature the tissue, when the stapler assembly performs suture cutting, it will cause the tissue incision to quickly deform and scab, achieving the function of quickly coagulating the tissue. After the tissue cutting is completed, after the instrument is reset, the stapler assembly is powered off, and closing again will not energize the stapler assembly, enabling the cutting knife head 11 of the assembly to cool down relatively quickly, facilitating the replacement of the stapler assembly.

[0046] The stapler assembly of the present application cooperates with an electric laparoscopic stapler to have the functions of cutting and suturing and coagulating the capillaries of the cut tissue, which can reduce the amount of surgical bleeding, enable faster postoperative recovery, and reduce surgical and postoperative risks; it can also reduce the number of times for medical staff to clean the blood oozing from the surgical site during the operation, reduce the labor of medical staff, reduce the operation time, and reduce the work intensity of medical staff.

[0047] After considering the invention disclosed in the specification and embodiments, those skilled in the art will easily think of other implementation schemes of the present invention. The present application aims to cover any variations, uses or adaptive changes of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the claims.

[0048] It should be understood that the present invention is not limited to the precise structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A stapler assembly with coagulation function, comprising: A cutting knife assembly, a nail magazine inner core, a nail magazine assembly, and a nail support assembly; wherein the cutting knife assembly includes: a cutting knife head, a cutting knife middle piece, and a cutting knife side piece, the cutting knife head is located at the distal end of the cutting knife middle piece, and the cutting knife head is fixed together with the cutting knife middle piece and the cutting knife side piece; the stapler assembly also includes: a heating galvanic component and an electrical connection component, the heating galvanic component is connected to the electrical connection component; the heating galvanic component is arranged on the cutting knife head, and the heating galvanic component can heat the cutting knife head; when the cutting knife assembly moves, the electrical connection component and the heating galvanic component maintain a circuit path.

2. The stapler assembly according to claim 1, wherein: The electrical connection assembly includes: a cutting knife wiring assembly and a nail magazine inner core wiring assembly; the heating electric couple assembly is electrically connected to the nail magazine inner core wiring assembly through the cutting knife wiring assembly; the cutting knife wiring assembly is arranged on the cutting knife assembly, and the nail magazine inner core wiring assembly is arranged on the nail magazine inner core.

3. The stapler assembly according to claim 2, wherein: The cutting blade side piece includes two pieces, which are respectively located at two sides of the cutting blade middle piece. The cutting blade head is provided with a first mounting structure for mounting a heating couple assembly.

4. The stapler assembly according to claim 3, characterized in that: The cutting knife wiring assembly includes: a line control switch, a first wiring, a wiring connector, and an elastic electric shock slider; one end of the line control switch is connected to the heating couple assembly, and the other end is connected to one end of the first wiring, the other end of the first wiring is connected to the wiring connector, and the wiring connector is fixedly connected to the elastic electric shock slider.

5. The stapler assembly according to claim 4, characterized in that: A second mounting structure is provided on the middle piece of the cutting knife, a first fixing structure is provided on each of the two side pieces of the cutting knife, and second fixing structures are provided on both sides of the line control switch. The line control switch is arranged at the second mounting structure, and the line control switch is fixed between the two side pieces of the cutting knife by cooperating with the first fixing structure and the second fixing structure.

6. The stapler assembly according to claim 4 or 5, characterized in that: A third mounting structure is provided on the middle piece of the cutting knife, a fourth mounting structure is provided on the cable connector, third fixing structures are provided on the two side pieces of the cutting knife, and fourth fixing structures are provided on both sides of the cable connector. The third mounting structure cooperates with the fourth mounting structure to install the cable connector on the middle piece of the cutting knife, and the third fixing structure cooperates with the fourth fixing structure to fix the cable connector between the two side pieces of the cutting knife.

7. The stapler assembly according to claim 4, characterized in that: The cable connector is provided with a plug, and the elastic electric shock slider is provided with a slot matching the shape of the plug, and the plug cooperates with the slot to achieve fixation between the cable connector and the elastic electric shock slider.

8. The stapler assembly according to claim 7, wherein: There are raised structures on both sides of the plug, and groove structures are correspondingly provided on both sides of the slot. The raised structures are arranged in the groove structures to prevent the cable connector and the elastic contact slider from moving in the vertical direction, and the circuit path is realized through the close cooperation between the raised structures and the groove structures.

9. The stapler assembly according to claim 4 or 5, characterized in that: The core cable assembly in the nail magazine includes: an elastic joint connected to the instrument, a connecting cable, and a power-carrying guide rail. There are two elastic joints, two connecting cables, and two power-carrying guide rails, and the two ends of the connecting cable are respectively connected to the elastic joint and the power-carrying guide rail; elastic contacts are respectively provided on both sides of the elastic electric contact slider, and the two elastic contacts are respectively in close contact with the two power-carrying guide rails.

10. The stapler assembly according to any one of claims 1 to 5, characterized in that: The stapler assembly also includes a temperature control system for controlling the temperature of the cutting head. The temperature control system includes: a temperature detection component and a switch control component. The temperature detection component detects the real-time temperature of the cutting head, and the switch control component controls the on and off of the circuit control switch.

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