Using method of endoscope anastomat with split type nail bin assembly

Abstract

According to the use method of the endoscope anastomat with the split type nail bin assembly, a plurality of nail bins are detachably arranged on the two sides of a nail bin base side by side, and the use method of the endoscope anastomat comprises the steps that according to the tissue thickness, one or more kinds of anastomosis nails with different heights are selected; the size of the jaw gap is adjusted according to the tissue type, so that the tissue is at the optimal healing pressure; judging a scene in which the tissue needs to be cut into nails, and installing anastomosis nails with proper height in a corresponding area in the nail bin seat; selecting a cutting anastomosis scene, an end-side anastomosis scene or a tissue separation scene; and the size of the jaw gap is maintained, and the cutting knife is operated to cut the tissue into nails in the scene. The split combined type nail bin is adopted, and the scenes needing to be anastomosed according to clinical tissues can be met; according to the thickness and the type of the tissue, the anastomosis nail with the proper height and the squeezing pressure are selected, so that the tissue is subjected to anastomosis nail forming under the optimal healing pressure and the constant jaw gap, and the healing effect of the tissue after anastomosis is improved.

Description

Technical Field

[0001] The present invention relates to a method for using a medical device, and in particular to a method for using a laparoscopic stapler with a split staple cartridge assembly. Background Art

[0002] Currently, there are two main structural forms of laparoscopic linear cutting staplers on the market. The stapler corresponding to the cutting blade installed on the body of the device is called Type II stapler. Type II staplers currently have specifications and models with staple line lengths of 30mm, 45mm, and 60mm, which can meet certain staple line requirements, but in many cases, multiple staplers are required to be used in conjunction to complete the entire operation; there are even laparoscopic staplers specifically for sleeve gastric surgery, with a staple line length of more than 230mm, which can achieve a one-cut gastrectomy.

[0003] However, the thickness of the stomach itself varies greatly (the wall thickness of the cardia, pylorus, and antrum may be 4-5mm, the fundus is relatively thin, perhaps 2-3mm, and the body of the stomach is 3-4mm. If a single stapler is used, the staple height cannot be adjusted, which will cause multi-regional anastomosis malfunction, inconsistent pressure resistance, low staple rate, bleeding, etc. According to different thicknesses, multiple staplers of different thicknesses are selected for multiple anastomosis, which is complicated to operate, and staplers with different anastomosis line lengths need to use corresponding stapler models with the same anastomosis line lengths. As a consumable, it has a high cost of use.

[0004] In addition, when choosing a stapler, different colors of staplers (representing different staple heights) will be selected according to the thickness of the tissue to meet the needs of anastomosis of tissues of different thicknesses. However, the stapler itself has poor self-adaptability, resulting in a large number of staple height models (distinguished by gray, white, blue, gold, green, black, etc.), which brings inconvenience to doctors in choosing staplers, and often results in poor anastomosis results due to the selection of inappropriate staplers.

[0005] End-to-side anastomosis is one of the common uses in clinical practice. After the diseased tissue is removed, it is necessary to make an opening in normal tissue, insert a round anastomosis to complete the end-to-side anastomosis, and finally anastomose the opening. The opening in the normal tissue causes secondary harm to the patient; and for the diseased side tissue that needs to be discarded, if it is assessed that no anastomosis is necessary, it will also cause secondary harm to the patient. Summary of the invention

[0006] In order to solve the above problems, the present invention proposes a method for using a laparoscopic stapler with a split staple cartridge assembly, and the specific technical solution is as follows: A method for using a laparoscopic stapler with a split stapler assembly, wherein the stapler assembly at least comprises a stapler assembly seat, a stapler, a staple anvil and a cutting knife, a jaw gap is formed between the stapler assembly seat and the staple anvil, and a plurality of staplers are detachably arranged side by side on both sides of the stapler assembly seat. The method for using the laparoscopic stapler is as follows: According to the thickness of the tissue, one or more staples of different heights are selected; According to the tissue type, adjust the size of the jaw gap to put the tissue under the best healing pressure; Determine the scenario in which the tissue needs to be cut into staples, and install staples of appropriate height in the corresponding area of ​​the staple cartridge seat; Cutting and anastomosis scenario: the same number of staple cartridges are installed on both sides of the staple cartridge seat; End-to-side anastomosis scenario: The two sides of the staple cartridge seat are installed with different numbers of staple cartridges; Tissue separation scenario: a staple cartridge is installed on one side of the staple cartridge seat; The size of the jaw gap is maintained, and the cutting knife is operated to cut the tissue into nails in the above scenario.

[0007] Further, the thickness of the tissue is determined according to the type of tissue, or a thickness value is obtained by measurement.

[0008] Furthermore, the staple cartridge assembly is adaptive to tissue thickness.

[0009] Furthermore, the nail magazine and the nail magazine seat are movably connected to each other, and the top surface of the nail magazine is provided with an elastic member that is tightly against the inner top surface of the nail magazine seat, and the elastic member is elastically deformed when squeezed.

[0010] Furthermore, the inner and outer walls of the side of the nail magazine seat are respectively provided with internal fixing grooves and external fixing grooves in an array, the middle part of the outer side of the nail magazine is provided with a buckle protrusion that can be movably engaged with the inner fixing groove, and the two ends of the outer side of the nail magazine are provided with a pair of elastic hooks that can be movably engaged with two adjacent external fixing grooves.

[0011] Furthermore, the elastic member is an elastic leg, an elastic plate or a spring assembly with elasticity.

[0012] Furthermore, the pressure value of the tissue is obtained through measurement.

[0013] Furthermore, the pressure on the tissue is used to automatically or manually adjust the size of the jaw gap according to its optimal healing pressure.

[0014] Furthermore, the nail magazine seat and the nail anvil move closer or farther in a translational motion to adjust the jaw gap therebetween and maintain the size of the jaw gap.

[0015] Furthermore, the size adjustment of the jaw gap and the nail cutting operation are both electrically controlled.

[0016] Beneficial effects: The present invention adopts a split modular staple magazine, and part of the staple magazine can be added or reduced according to the scenario where clinical tissues need to be anastomosed to achieve personalized anastomosis needs; according to the thickness and type of tissues, the appropriate height of the staples and the squeezing pressure are selected to enable the tissues to be anastomosed under the optimal healing pressure and constant jaw gap, thereby improving the healing effect of the tissues after anastomosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A block diagram of the steps for using the laparoscopic stapler of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0019] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0020] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] like Figure 1 As shown, a method for using a laparoscopic stapler with a split stapler assembly, the stapler assembly at least comprising a stapler assembly seat, a stapler, a staple anvil and a cutting knife, the stapler is provided with staples for staple tissues, the stapler is installed in the stapler assembly seat, the stapler anvil is provided with staple pits corresponding to the staples, the staples are fired to be bent into staples on the staple pits; a jaw gap is formed between the stapler assembly seat and the staple anvil, a plurality of staplers are detachably arranged side by side on both sides of the stapler assembly seat, and the method for using the laparoscopic stapler is as follows: Step 101, selecting one or more staples of different heights according to tissue thickness; Step 102, adjusting the size of the jaw gap according to the tissue type to place the tissue at an optimal healing pressure; Step 103, determining the scenario in which the tissue needs to be cut into staples, and installing staples of suitable height in the corresponding area of ​​the staple cartridge seat; Step 104, select the scene: Cutting and anastomosis scenario: the same number of staple cartridges are installed on both sides of the staple cartridge seat; End-to-side anastomosis scenario: The two sides of the staple cartridge seat are installed with different numbers of staple cartridges; Tissue separation scenario: a staple cartridge is installed on one side of the staple cartridge seat; Step 105 , maintaining the size of the jaw gap, and operating the cutting knife to cut the tissue into nails in the above scenario.

[0022] In step 104, split staple cartridges are installed on both sides of the staple cartridge seat, so that the staple cartridges can be used in combination to meet the needs of multiple scenarios of tissue anastomosis. For example, four staple cartridges can be installed on each side of the staple cartridge seat: Scenario 1: When cutting and anastomosing tissue, four staple cartridges (or other staple cartridges of the same number) are installed on both sides of the staple cartridge seat, and the two cut tissue sections are anastomosed.

[0023] Scenario 2: When anastomosing tissues end to side, four staple cartridges are installed on one side of the staple cartridge holder and three staple cartridges are installed on the other side. At this time, after the tissues are anastomosed, a section of tissue is only cut but not anastomosed, forming a cut hole. If anastomosing is performed end to side, the cut hole can be used directly without making a hole in the normal tissue to insert the round stapler, thus avoiding secondary tissue cutting.

[0024] Scenario 3: When the tissue is severed, for the diseased tissue that needs to be discarded, if it is assessed that no anastomosis is required (such as the anvil part that needs to be inserted with a round anastomosis), only a single-sided stapler needs to be installed for anastomosis and cutting; this anastomosis method can save several staplers and reduce the financial pressure on patients.

[0025] In step 101 , the thickness of the tissue is determined according to the type of tissue, or a thickness value is obtained by measurement.

[0026] For tissues with large thickness differences, the combination of staple cartridges with different heights can be selected through pre-measurement or database data to achieve good tissue adaptability. For example, the wall thickness of the cardia, pylorus, and antrum of gastric tissue is about 4-5mm, the fundus is about 2-3mm, and the body is about 3-4mm, so the corresponding height of the staples can be selected.

[0027] In addition, a thickness detection unit for detecting tissue thickness can be installed between the staple cartridge seat and the staple anvil, so as to facilitate the selection of staples of appropriate height. For example, the sensor used by the thickness detection unit can be an infrared sensor or a Hall sensor, and a matching receiving component to perform thickness detection so that the tissue can be better anastomosed.

[0028] In one embodiment, the staple cartridge assembly adapts to tissue thickness.

[0029] Specifically, the nail magazine and the nail magazine seat are connected to each other so as to be movable toward each other, and the top surface of the nail magazine is provided with an elastic member which is tightly pressed against the inner top surface of the nail magazine seat, and the elastic member is elastically deformed when squeezed.

[0030] The inner and outer walls of the side of the nail magazine seat are respectively provided with inner fixing grooves and outer fixing grooves in an array, a buckle protrusion that can be movably engaged with the inner fixing groove is provided in the middle of the outer side of the nail magazine, and a pair of elastic hooks that can be longitudinally moved and engaged with two adjacent outer fixing grooves are provided at both ends of the outer side of the nail magazine. When installing the nail magazine, the nail magazine is pressed downward toward the side of the nail magazine seat so that the buckle protrusion of the nail magazine is engaged with the inner fixing groove and the elastic hook is engaged with the outer fixing groove, so that the nail magazines can be installed tightly side by side.

[0031] In another embodiment, the elastic member is an elastic leg, an elastic plate or a spring assembly having elasticity.

[0032] When the tissue enters between the staple cartridge and the staple anvil, the two move toward each other to compress the tissue. Due to the different thickness of the tissue, the staple cartridge will move longitudinally on the staple cartridge seat. During the compression, the elastic effect of the elastic member makes the gap between the staple cartridge and the staple anvil adapt to the thickness of the tissue, so that the staples are stapled at an adapted height. Therefore, the elastic member is used to perform a secondary adaptation of the staple height, so that the staple height can be more suitable for the thickness of the tissue, which is beneficial to the healing of the tissue.

[0033] In step 102, the pressure value of the tissue is obtained by measurement.

[0034] The pressure of the tissue is detected by a pressure measuring unit, which includes a pressure sensor installed on the surface of the nail anvil, the nail magazine or the inner bottom surface of the nail magazine seat. Since the jaw gap directly contacts the tissue, the pressure data value of the tissue can be directly measured by placing a pressure sensor in the jaw gap; wherein the pressure sensor can be in various possible shapes such as sheet, filament, mesh, block, etc., and the tissue pressure data detected by it is transmitted to a controller to realize automatic control according to the optimal healing pressure.

[0035] In addition, when doctors select staple cartridges, they can recommend staple cartridge models based on the jaw gap value corresponding to the optimal healing pressure value and the thickness and type of tissue for doctors to choose, so as to reduce doctors' subjective judgment and make the anastomosis process more standardized.

[0036] In one embodiment, the pressure to which the tissue is subjected automatically or manually adjusts the size of the jaw gap according to its optimal healing pressure.

[0037] When the pressure data of the tissue is inconsistent with the optimal healing pressure of the tissue, the controller can be used to control the size of the jaw gap to adjust the pressure data of the tissue. In addition, the size of the jaw gap can be manually adjusted to match the pressure data of the tissue with the optimal healing pressure.

[0038] In another embodiment, the nail magazine seat and the nail anvil move closer or farther in a translational motion to adjust the jaw gap therebetween and maintain the size of the jaw gap.

[0039] The staple cartridge seat and the staple anvil can be realized by a structure that enables the two to translate synchronously, including but not limited to a gear structure, a connecting rod structure, etc. When cutting into staples, maintaining a constant jaw gap can keep the tissue pressure in a stable state, implement stable pressing into staples, improve the healing effect after tissue anastomosis, and also make the staples in the staple cartridge always aligned with the staple pits on the staple anvil, ensuring that constant pressure anastomosis is completed smoothly.

[0040] In step 105, the size adjustment and maintenance of the jaw gap and the nail cutting operation are all electrically controlled. Through the electric control, the automatic adjustment and locking of the jaw gap, as well as the electrically cutting tissue and the firing of the nail can be achieved.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for using a laparoscopic stapler with a split stapler assembly, wherein the stapler assembly at least comprises a stapler seat, a stapler, a staple anvil and a cutting knife, wherein a jaw gap is formed between the stapler seat and the staple anvil, and wherein: A plurality of staple cartridges are detachably arranged side by side on both sides of the staple cartridge seat, and the method for using the laparoscopic stapler is as follows: According to the thickness of the tissue, one or more staples of different heights are selected; According to the tissue type, adjust the size of the jaw gap to put the tissue under the best healing pressure; Determine the scenario in which the tissue needs to be cut into staples, and install staples of appropriate height in the corresponding area of ​​the staple cartridge seat; Cutting and anastomosis scenario: the same number of staple cartridges are installed on both sides of the staple cartridge seat; End-to-side anastomosis scenario: The two sides of the staple cartridge seat are installed with different numbers of staple cartridges; Tissue separation scenario: a staple cartridge is installed on one side of the staple cartridge seat; The size of the jaw gap is maintained, and the cutting knife is operated to cut the tissue into nails in the above scenario.

2. The method of use according to claim 1, characterized in that: The thickness of the tissue is determined based on the type of tissue or the thickness value is obtained by measurement.

3. The method of use according to claim 2, characterized in that: The staple cartridge assembly is adaptive to tissue thickness.

4. The method of use according to claim 3, characterized in that: The nail magazine and the nail magazine seat are movably connected to each other, and the top surface of the nail magazine is provided with an elastic member that is tightly against the inner top surface of the nail magazine seat. The elastic member is elastically deformed when squeezed.

5. The method of use according to claim 4, characterized in that: The inner and outer walls of the side of the nail magazine seat are respectively provided with internal fixing grooves and external fixing grooves in an array, a buckle protrusion that can be movably snapped into the internal fixing groove is provided in the middle of the outer side of the nail magazine, and a pair of elastic hooks that can be movably snapped into two adjacent external fixing grooves are provided at both ends of the outer side of the nail magazine.

6. The method of use according to claim 4, characterized in that: The elastic member is an elastic leg, an elastic plate or a spring assembly with elasticity.

7. The method of use according to claim 1, characterized in that: The pressure value of the tissue is obtained through measurement.

8. The method of use according to claim 7, characterized in that: The pressure on the tissue is used to automatically or manually adjust the size of the jaw gap according to its optimal healing pressure.

9. The method of use according to claim 8, characterized in that: The nail magazine seat and the nail anvil move closer or farther in a translational motion to adjust the jaw gap therebetween and maintain the size of the jaw gap.

10. The method of use according to claim 1, characterized in that: The size adjustment of the jaw gap and the operation of cutting into nails are all electrically controlled.

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